+++ /dev/null
- GNU GENERAL PUBLIC LICENSE
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 675 Mass Ave, Cambridge, MA 02139, USA
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+++ /dev/null
-
-CXX := @CXX@
-CXXFLAGS := -DUSE_PTHREADS -DHAVE_LIBSAMPLERATE -DHAVE_FFTW3 -DFFTW_DOUBLE_ONLY @CXXFLAGS@ @SRC_CFLAGS@ @SNDFILE_CFLAGS@ @FFTW_CFLAGS@ @Vamp_CFLAGS@ -Irubberband -Isrc $(OPTFLAGS)
-LDFLAGS := @LDFLAGS@ -lpthread $(LDFLAGS)
-
-LIBRARY_LIBS := @SRC_LIBS@ @FFTW_LIBS@
-PROGRAM_LIBS := @SNDFILE_LIBS@ $(LIBRARY_LIBS)
-VAMP_PLUGIN_LIBS := @Vamp_LIBS@ $(LIBRARY_LIBS)
-LADSPA_PLUGIN_LIBS := $(LIBRARY_LIBS)
-
-MKDIR := mkdir
-AR := ar
-
-DYNAMIC_LDFLAGS := -shared -Wl,-Bsymbolic
-DYNAMIC_EXTENSION := .so
-
-PROGRAM_TARGET := bin/rubberband
-STATIC_TARGET := lib/librubberband.a
-DYNAMIC_TARGET := lib/librubberband$(DYNAMIC_EXTENSION)
-VAMP_TARGET := lib/vamp-rubberband$(DYNAMIC_EXTENSION)
-LADSPA_TARGET := lib/ladspa-rubberband$(DYNAMIC_EXTENSION)
-
-INSTALL_BINDIR := @prefix@/bin
-INSTALL_INCDIR := @prefix@/include/rubberband
-INSTALL_LIBDIR := @prefix@/lib
-INSTALL_VAMPDIR := @prefix@/lib/vamp
-INSTALL_LADSPADIR := @prefix@/lib/ladspa
-INSTALL_PKGDIR := @prefix@/lib/pkgconfig
-
-all: bin lib $(PROGRAM_TARGET) $(STATIC_TARGET) $(DYNAMIC_TARGET) $(VAMP_TARGET) $(LADSPA_TARGET)
-
-PUBLIC_INCLUDES := \
- rubberband/TimeStretcher.h \
- rubberband/RubberBandStretcher.h
-
-LIBRARY_INCLUDES := \
- src/AudioCurve.h \
- src/ConstantAudioCurve.h \
- src/FFT.h \
- src/HighFrequencyAudioCurve.h \
- src/PercussiveAudioCurve.h \
- src/Resampler.h \
- src/RingBuffer.h \
- src/Scavenger.h \
- src/SpectralDifferenceAudioCurve.h \
- src/StretchCalculator.h \
- src/StretcherImpl.h \
- src/StretcherChannelData.h \
- src/Thread.h \
- src/Window.h \
- src/sysutils.h
-
-LIBRARY_SOURCES := \
- src/RubberBandStretcher.cpp \
- src/ConstantAudioCurve.cpp \
- src/HighFrequencyAudioCurve.cpp \
- src/PercussiveAudioCurve.cpp \
- src/AudioCurve.cpp \
- src/Resampler.cpp \
- src/SpectralDifferenceAudioCurve.cpp \
- src/StretchCalculator.cpp \
- src/StretcherImpl.cpp \
- src/StretcherProcess.cpp \
- src/StretcherChannelData.cpp \
- src/FFT.cpp \
- src/Thread.cpp \
- src/sysutils.cpp
-
-PROGRAM_SOURCES := \
- src/main.cpp
-
-VAMP_HEADERS := \
- src/vamp/RubberBandVampPlugin.h
-
-VAMP_SOURCES := \
- src/vamp/RubberBandVampPlugin.cpp \
- src/vamp/libmain.cpp
-
-LADSPA_HEADERS := \
- src/ladspa/RubberBandPitchShifter.h
-
-LADSPA_SOURCES := \
- src/ladspa/RubberBandPitchShifter.cpp \
- src/ladspa/libmain.cpp
-
-LIBRARY_OBJECTS := $(LIBRARY_SOURCES:.cpp=.o)
-PROGRAM_OBJECTS := $(PROGRAM_SOURCES:.cpp=.o)
-VAMP_OBJECTS := $(VAMP_SOURCES:.cpp=.o)
-LADSPA_OBJECTS := $(LADSPA_SOURCES:.cpp=.o)
-
-$(PROGRAM_TARGET): $(LIBRARY_OBJECTS) $(PROGRAM_OBJECTS)
- $(CXX) -o $@ $^ $(PROGRAM_LIBS) $(PROGRAM_LIBS) $(LDFLAGS)
-
-$(STATIC_TARGET): $(LIBRARY_OBJECTS)
- $(AR) rsc $@ $^
-
-$(DYNAMIC_TARGET): $(LIBRARY_OBJECTS)
- $(CXX) $(DYNAMIC_LDFLAGS) $^ -o $@ $(LIBRARY_LIBS) $(LDFLAGS)
-
-$(VAMP_TARGET): $(LIBRARY_OBJECTS) $(VAMP_OBJECTS)
- $(CXX) $(DYNAMIC_LDFLAGS) -o $@ $^ $(VAMP_PLUGIN_LIBS) $(LDFLAGS)
-
-$(LADSPA_TARGET): $(LIBRARY_OBJECTS) $(LADSPA_OBJECTS)
- $(CXX) $(DYNAMIC_LDFLAGS) -o $@ $^ $(LADSPA_PLUGIN_LIBS) $(LDFLAGS)
-
-bin:
- $(MKDIR) $@
-lib:
- $(MKDIR) $@
-
-install: all
- $(MKDIR) -p $(INSTALL_BINDIR)
- $(MKDIR) -p $(INSTALL_INCDIR)
- $(MKDIR) -p $(INSTALL_LIBDIR)
- $(MKDIR) -p $(INSTALL_VAMPDIR)
- $(MKDIR) -p $(INSTALL_LADSPADIR)
- cp $(PROGRAM_TARGET) $(INSTALL_BINDIR)
- cp $(PUBLIC_INCLUDES) $(INSTALL_INCDIR)
- cp $(STATIC_TARGET) $(INSTALL_LIBDIR)
- cp $(DYNAMIC_TARGET) $(INSTALL_LIBDIR)
- cp $(VAMP_TARGET) $(INSTALL_VAMPDIR)
- cp src/vamp/vamp-rubberband.cat $(INSTALL_VAMPDIR)
- cp $(LADSPA_TARGET) $(INSTALL_LADSPADIR)
- cp src/ladspa/ladspa-rubberband.cat $(INSTALL_LADSPADIR)
- sed "s,%PREFIX%,@prefix@," rubberband.pc.in \
- > $(INSTALL_PKGDIR)/rubberband.pc
-
-clean:
- rm -f $(LIBRARY_OBJECTS) $(PROGRAM_OBJECTS) $(LADSPA_OBJECTS) $(VAMP_OBJECTS)
-
-distclean: clean
- rm -f $(PROGRAM_TARGET) $(STATIC_TARGET) $(DYNAMIC_TARGET) $(VAMP_TARGET) $(LADSPA_TARGET)
-
-# DO NOT DELETE
-
-src/AudioCurve.o: src/AudioCurve.h
-src/ConstantAudioCurve.o: src/ConstantAudioCurve.h src/AudioCurve.h
-src/FFT.o: src/FFT.h src/Thread.h
-src/HighFrequencyAudioCurve.o: src/HighFrequencyAudioCurve.h src/AudioCurve.h
-src/HighFrequencyAudioCurve.o: src/Window.h
-src/main.o: src/sysutils.h
-src/PercussiveAudioCurve.o: src/PercussiveAudioCurve.h src/AudioCurve.h
-src/Resampler.o: src/Resampler.h
-src/RubberBandStretcher.o: src/StretcherImpl.h src/Window.h src/Thread.h
-src/RubberBandStretcher.o: src/RingBuffer.h src/Scavenger.h src/sysutils.h
-src/RubberBandStretcher.o: src/FFT.h
-src/SpectralDifferenceAudioCurve.o: src/SpectralDifferenceAudioCurve.h
-src/SpectralDifferenceAudioCurve.o: src/AudioCurve.h src/Window.h
-src/StretchCalculator.o: src/StretchCalculator.h
-src/StretcherChannelData.o: src/StretcherChannelData.h src/StretcherImpl.h
-src/StretcherChannelData.o: src/Window.h src/Thread.h src/RingBuffer.h
-src/StretcherChannelData.o: src/Scavenger.h src/sysutils.h src/FFT.h
-src/StretcherChannelData.o: src/Resampler.h
-src/StretcherImpl.o: src/StretcherImpl.h src/Window.h src/Thread.h
-src/StretcherImpl.o: src/RingBuffer.h src/Scavenger.h src/sysutils.h
-src/StretcherImpl.o: src/FFT.h src/PercussiveAudioCurve.h src/AudioCurve.h
-src/StretcherImpl.o: src/HighFrequencyAudioCurve.h
-src/StretcherImpl.o: src/SpectralDifferenceAudioCurve.h
-src/StretcherImpl.o: src/ConstantAudioCurve.h src/StretchCalculator.h
-src/StretcherImpl.o: src/StretcherChannelData.h src/Resampler.h
-src/StretcherProcess.o: src/StretcherImpl.h src/Window.h src/Thread.h
-src/StretcherProcess.o: src/RingBuffer.h src/Scavenger.h src/sysutils.h
-src/StretcherProcess.o: src/FFT.h src/PercussiveAudioCurve.h src/AudioCurve.h
-src/StretcherProcess.o: src/HighFrequencyAudioCurve.h
-src/StretcherProcess.o: src/ConstantAudioCurve.h src/StretchCalculator.h
-src/StretcherProcess.o: src/StretcherChannelData.h src/Resampler.h
-src/sysutils.o: src/sysutils.h
-src/Thread.o: src/Thread.h
-src/ConstantAudioCurve.o: src/AudioCurve.h
-src/HighFrequencyAudioCurve.o: src/AudioCurve.h src/Window.h
-src/PercussiveAudioCurve.o: src/AudioCurve.h
-src/RingBuffer.o: src/Scavenger.h src/Thread.h src/sysutils.h
-src/Scavenger.o: src/Thread.h src/sysutils.h
-src/SpectralDifferenceAudioCurve.o: src/AudioCurve.h src/Window.h
-src/StretcherChannelData.o: src/StretcherImpl.h src/Window.h src/Thread.h
-src/StretcherChannelData.o: src/RingBuffer.h src/Scavenger.h src/sysutils.h
-src/StretcherChannelData.o: src/FFT.h
-src/StretcherImpl.o: src/Window.h src/Thread.h src/RingBuffer.h
-src/StretcherImpl.o: src/Scavenger.h src/sysutils.h src/FFT.h
-src/vamp/libmain.o: src/vamp/RubberBandVampPlugin.h
-src/vamp/RubberBandVampPlugin.o: src/vamp/RubberBandVampPlugin.h
-src/vamp/RubberBandVampPlugin.o: src/StretchCalculator.h
-src/ladspa/libmain.o: src/ladspa/RubberBandPitchShifter.h src/RingBuffer.h
-src/ladspa/libmain.o: src/Scavenger.h src/Thread.h src/sysutils.h
-src/ladspa/RubberBandPitchShifter.o: src/ladspa/RubberBandPitchShifter.h
-src/ladspa/RubberBandPitchShifter.o: src/RingBuffer.h src/Scavenger.h
-src/ladspa/RubberBandPitchShifter.o: src/Thread.h src/sysutils.h
-src/ladspa/RubberBandPitchShifter.o: src/RingBuffer.h src/Scavenger.h
-src/ladspa/RubberBandPitchShifter.o: src/Thread.h src/sysutils.h
+++ /dev/null
-
-Rubber Band
-===========
-
-An audio time-stretching and pitch-shifting library and utility program.
-
-Copyright 2007 Chris Cannam, cannam@all-day-breakfast.com.
-
-Distributed under the GNU General Public License.
-
-Rubber Band is a library and utility program that permits you to
-change the tempo and pitch of an audio recording independently of one
-another.
-
-
-Attractive features
-~~~~~~~~~~~~~~~~~~~
-
- * High quality results suitable for musical use
-
- Rubber Band is a phase-vocoder-based frequency domain time
- stretcher with partial phase locking to peak frequencies and phase
- resynchronisation at noisy transients. It is suitable for most
- musical uses with its default settings, and has a range of options
- for fine tuning.
-
- * Real-time capable
-
- In addition to the offline mode (for use in situations where all
- audio data is available beforehand), Rubber Band supports a true
- real-time, lock-free streaming mode, in which the time and pitch
- scaling ratios may be dynamically adjusted during use.
-
- * Sample-accurate duration adjustment
-
- In offline mode, Rubber Band ensures that the output has exactly
- the right number of samples for the given stretch ratio. (In
- real-time mode Rubber Band aims to keep as closely as possible to
- the exact ratio, although this depends on the audio material
- itself.)
-
- * Multiprocessor/multi-core support
-
- Rubber Band's offline mode can take advantage of more than one
- processor core if available, when processing data with two or more
- audio channels.
-
- * No job too big, or too small
-
- Rubber Band is tuned so as to work well with the default settings
- for any stretch ratio, from tiny deviations from the original
- speed to very extreme stretches.
-
- * Handy utilities included
-
- The Rubber Band code includes a useful command-line time-stretch
- and pitch shift utility (called simply rubberband), two LADSPA
- pitch shifter plugins (Rubber Band Mono Pitch Shifter and Rubber
- Band Stereo Pitch Shifter), and a Vamp audio analysis plugin which
- may be used to inspect the stretch profile decisions Rubber Band
- is taking.
-
- * Free Software
-
- Rubber Band is Free Software published under the GNU General
- Public License.
-
-
-Limitations
-~~~~~~~~~~~
-
- * Not especially fast
-
- The algorithm used by Rubber Band is very processor intensive, and
- Rubber Band is not the fastest implementation on earth.
-
- * Not especially state of the art
-
- Rubber Band employs well known algorithms which work well in many
- situations, but it isn't "cutting edge" in any interesting sense.
-
- * Relatively complex
-
- While the fundamental algorithms in Rubber Band are not especially
- complex, the implementation is complicated by the support for
- multiple processing modes, exact sample precision, threading, and
- other features that add to the flexibility of the API.
-
-
-Compiling Rubber Band
----------------------
-
-Rubber Band is supplied with build scripts that have been tested on
-Linux platforms. It is also possible to build Rubber Band on other
-platforms, including both POSIX platforms such as OS/X and non-POSIX
-platforms such as Win32. There are some example Makefiles in the misc
-directory, but if you're using a proprietary platform and you get
-stuck I'm afraid you're on your own, unless you want to pay us...
-
-To build Rubber Band you will also need libsndfile, libsamplerate,
-FFTW3, the Vamp plugin SDK, the LADSPA plugin header, the pthread
-library (except on Win32), and a C++ compiler. The code has been
-tested with GCC 4.x and with the Intel C++ compiler.
-
-Rubber Band comes with a simple autoconf script. Run
-
- $ ./configure
- $ make
-
-to compile, and optionally
-
- # make install
-
-to install.
-
-
-Using the Rubber Band utility
------------------------------
-
-The Rubber Band command-line utility builds as bin/rubberband. The
-basic incantation is
-
- $ rubberband -t <timeratio> -p <pitchratio> <infile.wav> <outfile.wav>
-
-For example,
-
- $ rubberband -t 1.5 -p 2.0 test.wav output.wav
-
-stretches the file test.wav to 50% longer than its original duration,
-shifts it up in pitch by one octave, and writes the output to output.wav.
-
-Several further options are available: run "rubberband -h" for help.
-In particular, different types of music may benefit from different
-"crispness" options (-c <n> where <n> is from 0 to 5).
-
-
-Using the Rubber Band library
------------------------------
-
-The Rubber Band library has a public API that consists of one C++
-class, called RubberBandStretcher in the RubberBand namespace. You
-should #include <rubberband/RubberBandStretcher.h> to use this class.
-There is extensive documentation in the class header.
-
-The source code for the command-line utility (src/main.cpp) provides a
-good example of how to use Rubber Band in offline mode; the LADSPA
-pitch shifter plugin (src/ladspa/RubberBandPitchShifter.cpp) may be
-used as an example of Rubber Band in real-time mode.
-
-IMPORTANT: Please ensure you have read and understood the licensing
-terms for Rubber Band before using it in another application. This
-library is provided under the GNU General Public License, which means
-that any application that uses it must also be published under the GPL
-or a compatible license (i.e. with its full source code also available
-for modification and redistribution). See the file COPYING for more
-details. Alternative commercial and proprietary licensing terms are
-available; please contact the author if you are interested.
-
+++ /dev/null
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-\`configure' configures RubberBand 0.1 to adapt to many kinds of systems.
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-fi
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-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
- { echo "$as_me:$LINENO: result: $CC" >&5
-echo "${ECHO_T}$CC" >&6; }
-else
- { echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6; }
-fi
-
-
-fi
-if test -z "$CC"; then
- if test -n "$ac_tool_prefix"; then
- for ac_prog in cl.exe
- do
- # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
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-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
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- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
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- ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
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-done
-IFS=$as_save_IFS
-
-fi
-fi
-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
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-echo "${ECHO_T}$CC" >&6; }
-else
- { echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6; }
-fi
-
-
- test -n "$CC" && break
- done
-fi
-if test -z "$CC"; then
- ac_ct_CC=$CC
- for ac_prog in cl.exe
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test -n "$ac_ct_CC"; then
- ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_CC="$ac_prog"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_CC=$ac_cv_prog_ac_ct_CC
-if test -n "$ac_ct_CC"; then
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-echo "${ECHO_T}$ac_ct_CC" >&6; }
-else
- { echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6; }
-fi
-
-
- test -n "$ac_ct_CC" && break
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-
- if test "x$ac_ct_CC" = x; then
- CC=""
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet. If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet. If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&2;}
-ac_tool_warned=yes ;;
-esac
- CC=$ac_ct_CC
- fi
-fi
-
-fi
-
-
-test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
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-echo "$as_me: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-
-# Provide some information about the compiler.
-echo "$as_me:$LINENO: checking for C compiler version" >&5
-ac_compiler=`set X $ac_compile; echo $2`
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compiler --version >&5") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compiler -v >&5") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compiler -V >&5") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }
-
-{ echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
-echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-#ifndef __GNUC__
- choke me
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
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-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_compiler_gnu=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_compiler_gnu=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
-echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6; }
-GCC=`test $ac_compiler_gnu = yes && echo yes`
-ac_test_CFLAGS=${CFLAGS+set}
-ac_save_CFLAGS=$CFLAGS
-{ echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
-echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_save_c_werror_flag=$ac_c_werror_flag
- ac_c_werror_flag=yes
- ac_cv_prog_cc_g=no
- CFLAGS="-g"
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_cv_prog_cc_g=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- CFLAGS=""
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- :
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_c_werror_flag=$ac_save_c_werror_flag
- CFLAGS="-g"
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_cv_prog_cc_g=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- ac_c_werror_flag=$ac_save_c_werror_flag
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
-echo "${ECHO_T}$ac_cv_prog_cc_g" >&6; }
-if test "$ac_test_CFLAGS" = set; then
- CFLAGS=$ac_save_CFLAGS
-elif test $ac_cv_prog_cc_g = yes; then
- if test "$GCC" = yes; then
- CFLAGS="-g -O2"
- else
- CFLAGS="-g"
- fi
-else
- if test "$GCC" = yes; then
- CFLAGS="-O2"
- else
- CFLAGS=
- fi
-fi
-{ echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5
-echo $ECHO_N "checking for $CC option to accept ISO C89... $ECHO_C" >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_cv_prog_cc_c89=no
-ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdarg.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
- char **p;
- int i;
-{
- return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
- char *s;
- va_list v;
- va_start (v,p);
- s = g (p, va_arg (v,int));
- va_end (v);
- return s;
-}
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
- function prototypes and stuff, but not '\xHH' hex character constants.
- These don't provoke an error unfortunately, instead are silently treated
- as 'x'. The following induces an error, until -std is added to get
- proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
- array size at least. It's necessary to write '\x00'==0 to get something
- that's true only with -std. */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
-
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
- inside strings and character constants. */
-#define FOO(x) 'x'
-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
-
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
- ;
- return 0;
-}
-_ACEOF
-for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
- -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
-do
- CC="$ac_save_CC $ac_arg"
- rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_cv_prog_cc_c89=$ac_arg
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
-fi
-
-rm -f core conftest.err conftest.$ac_objext
- test "x$ac_cv_prog_cc_c89" != "xno" && break
-done
-rm -f conftest.$ac_ext
-CC=$ac_save_CC
-
-fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c89" in
- x)
- { echo "$as_me:$LINENO: result: none needed" >&5
-echo "${ECHO_T}none needed" >&6; } ;;
- xno)
- { echo "$as_me:$LINENO: result: unsupported" >&5
-echo "${ECHO_T}unsupported" >&6; } ;;
- *)
- CC="$CC $ac_cv_prog_cc_c89"
- { echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5
-echo "${ECHO_T}$ac_cv_prog_cc_c89" >&6; } ;;
-esac
-
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
-echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
- CPP=
-fi
-if test -z "$CPP"; then
- if test "${ac_cv_prog_CPP+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- # Double quotes because CPP needs to be expanded
- for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
- do
- ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
- # Use a header file that comes with gcc, so configuring glibc
- # with a fresh cross-compiler works.
- # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- # <limits.h> exists even on freestanding compilers.
- # On the NeXT, cc -E runs the code through the compiler's parser,
- # not just through cpp. "Syntax error" is here to catch this case.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
- Syntax error
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
- test ! -s conftest.err
- }; then
- :
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Broken: fails on valid input.
-continue
-fi
-
-rm -f conftest.err conftest.$ac_ext
-
- # OK, works on sane cases. Now check whether nonexistent headers
- # can be detected and how.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ac_nonexistent.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
- test ! -s conftest.err
- }; then
- # Broken: success on invalid input.
-continue
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-
-rm -f conftest.err conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
- break
-fi
-
- done
- ac_cv_prog_CPP=$CPP
-
-fi
- CPP=$ac_cv_prog_CPP
-else
- ac_cv_prog_CPP=$CPP
-fi
-{ echo "$as_me:$LINENO: result: $CPP" >&5
-echo "${ECHO_T}$CPP" >&6; }
-ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
- # Use a header file that comes with gcc, so configuring glibc
- # with a fresh cross-compiler works.
- # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- # <limits.h> exists even on freestanding compilers.
- # On the NeXT, cc -E runs the code through the compiler's parser,
- # not just through cpp. "Syntax error" is here to catch this case.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
- Syntax error
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
- test ! -s conftest.err
- }; then
- :
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Broken: fails on valid input.
-continue
-fi
-
-rm -f conftest.err conftest.$ac_ext
-
- # OK, works on sane cases. Now check whether nonexistent headers
- # can be detected and how.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ac_nonexistent.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
- test ! -s conftest.err
- }; then
- # Broken: success on invalid input.
-continue
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-
-rm -f conftest.err conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
- :
-else
- { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." >&5
-echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-{ echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
-echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; }
-if test "${ac_cv_path_GREP+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- # Extract the first word of "grep ggrep" to use in msg output
-if test -z "$GREP"; then
-set dummy grep ggrep; ac_prog_name=$2
-if test "${ac_cv_path_GREP+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_path_GREP_found=false
-# Loop through the user's path and test for each of PROGNAME-LIST
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in grep ggrep; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
- { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
- # Check for GNU ac_path_GREP and select it if it is found.
- # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
- ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
- ac_count=0
- echo $ECHO_N "0123456789$ECHO_C" >"conftest.in"
- while :
- do
- cat "conftest.in" "conftest.in" >"conftest.tmp"
- mv "conftest.tmp" "conftest.in"
- cp "conftest.in" "conftest.nl"
- echo 'GREP' >> "conftest.nl"
- "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
- diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
- ac_count=`expr $ac_count + 1`
- if test $ac_count -gt ${ac_path_GREP_max-0}; then
- # Best one so far, save it but keep looking for a better one
- ac_cv_path_GREP="$ac_path_GREP"
- ac_path_GREP_max=$ac_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-
- $ac_path_GREP_found && break 3
- done
-done
-
-done
-IFS=$as_save_IFS
-
-
-fi
-
-GREP="$ac_cv_path_GREP"
-if test -z "$GREP"; then
- { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-else
- ac_cv_path_GREP=$GREP
-fi
-
-
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
-echo "${ECHO_T}$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ echo "$as_me:$LINENO: checking for egrep" >&5
-echo $ECHO_N "checking for egrep... $ECHO_C" >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
- then ac_cv_path_EGREP="$GREP -E"
- else
- # Extract the first word of "egrep" to use in msg output
-if test -z "$EGREP"; then
-set dummy egrep; ac_prog_name=$2
-if test "${ac_cv_path_EGREP+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_path_EGREP_found=false
-# Loop through the user's path and test for each of PROGNAME-LIST
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in egrep; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
- { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
- # Check for GNU ac_path_EGREP and select it if it is found.
- # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
- ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
- ac_count=0
- echo $ECHO_N "0123456789$ECHO_C" >"conftest.in"
- while :
- do
- cat "conftest.in" "conftest.in" >"conftest.tmp"
- mv "conftest.tmp" "conftest.in"
- cp "conftest.in" "conftest.nl"
- echo 'EGREP' >> "conftest.nl"
- "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
- diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
- ac_count=`expr $ac_count + 1`
- if test $ac_count -gt ${ac_path_EGREP_max-0}; then
- # Best one so far, save it but keep looking for a better one
- ac_cv_path_EGREP="$ac_path_EGREP"
- ac_path_EGREP_max=$ac_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-
- $ac_path_EGREP_found && break 3
- done
-done
-
-done
-IFS=$as_save_IFS
-
-
-fi
-
-EGREP="$ac_cv_path_EGREP"
-if test -z "$EGREP"; then
- { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-else
- ac_cv_path_EGREP=$EGREP
-fi
-
-
- fi
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
-echo "${ECHO_T}$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-{ echo "$as_me:$LINENO: checking for ANSI C header files" >&5
-echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_cv_header_stdc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_cv_header_stdc=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
- # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "memchr" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "free" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
- if test "$cross_compiling" = yes; then
- :
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
- (('a' <= (c) && (c) <= 'i') \
- || ('j' <= (c) && (c) <= 'r') \
- || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
- int i;
- for (i = 0; i < 256; i++)
- if (XOR (islower (i), ISLOWER (i))
- || toupper (i) != TOUPPER (i))
- return 2;
- return 0;
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_link") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_try") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- :
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-
-
-fi
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
-echo "${ECHO_T}$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
- inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-{ echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- eval "$as_ac_Header=yes"
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- eval "$as_ac_Header=no"
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-ac_res=`eval echo '${'$as_ac_Header'}'`
- { echo "$as_me:$LINENO: result: $ac_res" >&5
-echo "${ECHO_T}$ac_res" >&6; }
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-{ echo "$as_me:$LINENO: checking whether byte ordering is bigendian" >&5
-echo $ECHO_N "checking whether byte ordering is bigendian... $ECHO_C" >&6; }
-if test "${ac_cv_c_bigendian+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- # See if sys/param.h defines the BYTE_ORDER macro.
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <sys/types.h>
-#include <sys/param.h>
-
-int
-main ()
-{
-#if ! (defined BYTE_ORDER && defined BIG_ENDIAN && defined LITTLE_ENDIAN \
- && BYTE_ORDER && BIG_ENDIAN && LITTLE_ENDIAN)
- bogus endian macros
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- # It does; now see whether it defined to BIG_ENDIAN or not.
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <sys/types.h>
-#include <sys/param.h>
-
-int
-main ()
-{
-#if BYTE_ORDER != BIG_ENDIAN
- not big endian
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_compile") 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && {
- test -z "$ac_c_werror_flag" ||
- test ! -s conftest.err
- } && test -s conftest.$ac_objext; then
- ac_cv_c_bigendian=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_cv_c_bigendian=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # It does not; compile a test program.
-if test "$cross_compiling" = yes; then
- # try to guess the endianness by grepping values into an object file
- ac_cv_c_bigendian=unknown
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-short int ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
-short int ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
-void _ascii () { char *s = (char *) ascii_mm; s = (char *) ascii_ii; }
-short int ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
-short int ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
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-int
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-{
- _ascii (); _ebcdic ();
- ;
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-
-
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-{ echo "$as_me:$LINENO: checking for $ac_word" >&5
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- fi
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-IFS=$as_save_IFS
-
- ;;
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-ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
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- { echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
-echo "${ECHO_T}$ac_pt_PKG_CONFIG" >&6; }
-else
- { echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6; }
-fi
-
- if test "x$ac_pt_PKG_CONFIG" = x; then
- PKG_CONFIG=""
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet. If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet. If you think this
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-ac_tool_warned=yes ;;
-esac
- PKG_CONFIG=$ac_pt_PKG_CONFIG
- fi
-else
- PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
-fi
-
-fi
-if test -n "$PKG_CONFIG"; then
- _pkg_min_version=0.9.0
- { echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
-echo $ECHO_N "checking pkg-config is at least version $_pkg_min_version... $ECHO_C" >&6; }
- if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
- { echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6; }
- else
- { echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6; }
- PKG_CONFIG=""
- fi
-
-fi
-
-pkg_failed=no
-{ echo "$as_me:$LINENO: checking for SRC" >&5
-echo $ECHO_N "checking for SRC... $ECHO_C" >&6; }
-
-if test -n "$PKG_CONFIG"; then
- if test -n "$SRC_CFLAGS"; then
- pkg_cv_SRC_CFLAGS="$SRC_CFLAGS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"samplerate\"") >&5
- ($PKG_CONFIG --exists --print-errors "samplerate") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_SRC_CFLAGS=`$PKG_CONFIG --cflags "samplerate" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-if test -n "$PKG_CONFIG"; then
- if test -n "$SRC_LIBS"; then
- pkg_cv_SRC_LIBS="$SRC_LIBS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"samplerate\"") >&5
- ($PKG_CONFIG --exists --print-errors "samplerate") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_SRC_LIBS=`$PKG_CONFIG --libs "samplerate" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
- _pkg_short_errors_supported=yes
-else
- _pkg_short_errors_supported=no
-fi
- if test $_pkg_short_errors_supported = yes; then
- SRC_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "samplerate"`
- else
- SRC_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "samplerate"`
- fi
- # Put the nasty error message in config.log where it belongs
- echo "$SRC_PKG_ERRORS" >&5
-
- { { echo "$as_me:$LINENO: error: Package requirements (samplerate) were not met:
-
-$SRC_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
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-
-Alternatively, you may set the environment variables SRC_CFLAGS
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-See the pkg-config man page for more details.
-" >&5
-echo "$as_me: error: Package requirements (samplerate) were not met:
-
-$SRC_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables SRC_CFLAGS
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-See the pkg-config man page for more details.
-" >&2;}
- { (exit 1); exit 1; }; }
-elif test $pkg_failed = untried; then
- { { echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old. Make sure it
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-path to pkg-config.
-
-Alternatively, you may set the environment variables SRC_CFLAGS
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-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-echo "$as_me: error: The pkg-config script could not be found or is too old. Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables SRC_CFLAGS
-and SRC_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-else
- SRC_CFLAGS=$pkg_cv_SRC_CFLAGS
- SRC_LIBS=$pkg_cv_SRC_LIBS
- { echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6; }
- :
-fi
-
-
-
-
-pkg_failed=no
-{ echo "$as_me:$LINENO: checking for SNDFILE" >&5
-echo $ECHO_N "checking for SNDFILE... $ECHO_C" >&6; }
-
-if test -n "$PKG_CONFIG"; then
- if test -n "$SNDFILE_CFLAGS"; then
- pkg_cv_SNDFILE_CFLAGS="$SNDFILE_CFLAGS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"sndfile\"") >&5
- ($PKG_CONFIG --exists --print-errors "sndfile") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_SNDFILE_CFLAGS=`$PKG_CONFIG --cflags "sndfile" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-if test -n "$PKG_CONFIG"; then
- if test -n "$SNDFILE_LIBS"; then
- pkg_cv_SNDFILE_LIBS="$SNDFILE_LIBS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"sndfile\"") >&5
- ($PKG_CONFIG --exists --print-errors "sndfile") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_SNDFILE_LIBS=`$PKG_CONFIG --libs "sndfile" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
- _pkg_short_errors_supported=yes
-else
- _pkg_short_errors_supported=no
-fi
- if test $_pkg_short_errors_supported = yes; then
- SNDFILE_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "sndfile"`
- else
- SNDFILE_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "sndfile"`
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- # Put the nasty error message in config.log where it belongs
- echo "$SNDFILE_PKG_ERRORS" >&5
-
- { { echo "$as_me:$LINENO: error: Package requirements (sndfile) were not met:
-
-$SNDFILE_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
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-
-Alternatively, you may set the environment variables SNDFILE_CFLAGS
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-" >&5
-echo "$as_me: error: Package requirements (sndfile) were not met:
-
-$SNDFILE_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
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-
-Alternatively, you may set the environment variables SNDFILE_CFLAGS
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- { (exit 1); exit 1; }; }
-elif test $pkg_failed = untried; then
- { { echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old. Make sure it
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-
-Alternatively, you may set the environment variables SNDFILE_CFLAGS
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-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
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-echo "$as_me: error: The pkg-config script could not be found or is too old. Make sure it
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-
-Alternatively, you may set the environment variables SNDFILE_CFLAGS
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-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-else
- SNDFILE_CFLAGS=$pkg_cv_SNDFILE_CFLAGS
- SNDFILE_LIBS=$pkg_cv_SNDFILE_LIBS
- { echo "$as_me:$LINENO: result: yes" >&5
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- :
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-
-
-
-
-pkg_failed=no
-{ echo "$as_me:$LINENO: checking for FFTW" >&5
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-
-if test -n "$PKG_CONFIG"; then
- if test -n "$FFTW_CFLAGS"; then
- pkg_cv_FFTW_CFLAGS="$FFTW_CFLAGS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"fftw3\"") >&5
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- ac_status=$?
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- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
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-if test -n "$PKG_CONFIG"; then
- if test -n "$FFTW_LIBS"; then
- pkg_cv_FFTW_LIBS="$FFTW_LIBS"
- else
- if test -n "$PKG_CONFIG" && \
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- ($PKG_CONFIG --exists --print-errors "fftw3") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_FFTW_LIBS=`$PKG_CONFIG --libs "fftw3" 2>/dev/null`
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- pkg_failed=yes
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- fi
-else
- pkg_failed=untried
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-
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- _pkg_short_errors_supported=no
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- if test $_pkg_short_errors_supported = yes; then
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- FFTW_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "fftw3"`
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-
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-$FFTW_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
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-
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-
-Alternatively, you may set the environment variables FFTW_CFLAGS
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-
-Alternatively, you may set the environment variables FFTW_CFLAGS
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-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
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-echo "$as_me: error: The pkg-config script could not be found or is too old. Make sure it
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-Alternatively, you may set the environment variables FFTW_CFLAGS
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-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
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- { (exit 1); exit 1; }; }
-else
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-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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-
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-{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6; }
-
-# Is the header present?
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-/* confdefs.h. */
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-
- ac_header_preproc=no
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-rm -f conftest.err conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6; }
-
-# So? What about this header?
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-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
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- no:yes:* )
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- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
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- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
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-{ echo "$as_me:$LINENO: checking for $ac_header" >&5
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-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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-{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
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-# Is the header present?
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-/* confdefs.h. */
-_ACEOF
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-/* end confdefs.h. */
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-_ACEOF
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- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
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- ac_header_preproc=no
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-{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
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-
-# So? What about this header?
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- ac_header_preproc=yes
- ;;
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-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
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- ( cat <<\_ASBOX
-## ------------------------------------------- ##
-## Report this to cannam@all-day-breakfast.com ##
-## ------------------------------------------- ##
-_ASBOX
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-{ echo "$as_me:$LINENO: checking for $ac_header" >&5
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- ($PKG_CONFIG --exists --print-errors "vamp-sdk") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_Vamp_LIBS=`$PKG_CONFIG --libs "vamp-sdk" 2>/dev/null`
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- pkg_failed=yes
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- fi
-else
- pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
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-else
- _pkg_short_errors_supported=no
-fi
- if test $_pkg_short_errors_supported = yes; then
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- else
- Vamp_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "vamp-sdk"`
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- # Put the nasty error message in config.log where it belongs
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-
- { { echo "$as_me:$LINENO: error: Package requirements (vamp-sdk) were not met:
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-$Vamp_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
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-
-Alternatively, you may set the environment variables Vamp_CFLAGS
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-See the pkg-config man page for more details.
-" >&5
-echo "$as_me: error: Package requirements (vamp-sdk) were not met:
-
-$Vamp_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables Vamp_CFLAGS
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-See the pkg-config man page for more details.
-" >&2;}
- { (exit 1); exit 1; }; }
-elif test $pkg_failed = untried; then
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-path to pkg-config.
-
-Alternatively, you may set the environment variables Vamp_CFLAGS
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-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
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-echo "$as_me: error: The pkg-config script could not be found or is too old. Make sure it
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-path to pkg-config.
-
-Alternatively, you may set the environment variables Vamp_CFLAGS
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-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-else
- Vamp_CFLAGS=$pkg_cv_Vamp_CFLAGS
- Vamp_LIBS=$pkg_cv_Vamp_LIBS
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-echo "${ECHO_T}yes" >&6; }
- :
-fi
-
-
-
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-
-ac_config_files="$ac_config_files Makefile"
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
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-#
-# config.status only pays attention to the cache file if you give it
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-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
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-
-_ACEOF
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-) |
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-echo "$as_me: updating cache $cache_file" >&6;}
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-# Transform confdefs.h into DEFS.
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-s/[ `~#$^&*(){}\\|;'\''"<>?]/\\&/g
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- ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
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-LTLIBOBJS=$ac_ltlibobjs
-
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-
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-ac_cs_recheck=false
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-SHELL=\${CONFIG_SHELL-$SHELL}
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF
-## --------------------- ##
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- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
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-
-fi
-
-
-
-
-# PATH needs CR
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-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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-
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- echo "exit 0" >>conf$$.sh
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- if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
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- else
- PATH_SEPARATOR=:
- fi
- rm -f conf$$.sh
-fi
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- s//\1/
- q
- }
- /^X\(\/\).*/{
- s//\1/
- q
- }
- s/.*/./; q'`
- test -d "$as_dir" && break
- done
- test -z "$as_dirs" || eval "mkdir $as_dirs"
- } || test -d "$as_dir" || { { echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
-echo "$as_me: error: cannot create directory $as_dir" >&2;}
- { (exit 1); exit 1; }; }; }
- ac_builddir=.
-
-case "$ac_dir" in
-.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
-*)
- ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
- # A ".." for each directory in $ac_dir_suffix.
- ac_top_builddir_sub=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,/..,g;s,/,,'`
- case $ac_top_builddir_sub in
- "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
- *) ac_top_build_prefix=$ac_top_builddir_sub/ ;;
- esac ;;
-esac
-ac_abs_top_builddir=$ac_pwd
-ac_abs_builddir=$ac_pwd$ac_dir_suffix
-# for backward compatibility:
-ac_top_builddir=$ac_top_build_prefix
-
-case $srcdir in
- .) # We are building in place.
- ac_srcdir=.
- ac_top_srcdir=$ac_top_builddir_sub
- ac_abs_top_srcdir=$ac_pwd ;;
- [\\/]* | ?:[\\/]* ) # Absolute name.
- ac_srcdir=$srcdir$ac_dir_suffix;
- ac_top_srcdir=$srcdir
- ac_abs_top_srcdir=$srcdir ;;
- *) # Relative name.
- ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
- ac_top_srcdir=$ac_top_build_prefix$srcdir
- ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
-esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
-
-
- case $ac_mode in
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- #
- # CONFIG_FILE
- #
-
-_ACEOF
-
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-
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-' $ac_file_inputs` in
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-_ACEOF
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- ac_datarootdir_hack='
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- s&@docdir@&$docdir&g
- s&@infodir@&$infodir&g
- s&@localedir@&$localedir&g
- s&@mandir@&$mandir&g
- s&\\\${datarootdir}&$datarootdir&g' ;;
-esac
-_ACEOF
-
-# Neutralize VPATH when `$srcdir' = `.'.
-# Shell code in configure.ac might set extrasub.
-# FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF
- sed "$ac_vpsub
-$extrasub
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF
-:t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
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-echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
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-
- rm -f "$tmp/stdin"
- case $ac_file in
- -) cat "$tmp/out"; rm -f "$tmp/out";;
- *) rm -f "$ac_file"; mv "$tmp/out" $ac_file;;
- esac
- ;;
-
-
-
- esac
-
-done # for ac_tag
-
-
-{ (exit 0); exit 0; }
-_ACEOF
-chmod +x $CONFIG_STATUS
-ac_clean_files=$ac_clean_files_save
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded. So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status. When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
- ac_cs_success=:
- ac_config_status_args=
- test "$silent" = yes &&
- ac_config_status_args="$ac_config_status_args --quiet"
- exec 5>/dev/null
- $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
- exec 5>>config.log
- # Use ||, not &&, to avoid exiting from the if with $? = 1, which
- # would make configure fail if this is the last instruction.
- $ac_cs_success || { (exit 1); exit 1; }
-fi
-
-
+++ /dev/null
-
-AC_INIT(RubberBand, 0.1, cannam@all-day-breakfast.com)
-
-AC_CONFIG_SRCDIR(src/StretcherImpl.h)
-AC_PROG_CXX
-AC_HEADER_STDC
-AC_C_BIGENDIAN
-
-PKG_CHECK_MODULES([SRC],[samplerate])
-AC_SUBST(SRC_CFLAGS)
-AC_SUBST(SRC_LIBS)
-
-PKG_CHECK_MODULES([SNDFILE],[sndfile])
-AC_SUBST(SNDFILE_CFLAGS)
-AC_SUBST(SNDFILE_LIBS)
-
-PKG_CHECK_MODULES([FFTW],[fftw3])
-AC_SUBST(FFTW_CFLAGS)
-AC_SUBST(FFTW_LIBS)
-
-AC_CHECK_HEADERS(ladspa.h)
-AC_CHECK_HEADERS(pthread.h)
-
-PKG_CHECK_MODULES([Vamp],[vamp-sdk])
-AC_SUBST(Vamp_CFLAGS)
-AC_SUBST(Vamp_LIBS)
-
-changequote(,)dnl
-if test "x$GCC" = "xyes"; then
- case " $CXXFLAGS " in
- *[\ \ ]-fPIC\ -Wall[\ \ ]*) ;;
- *) CXXFLAGS="$CXXFLAGS -fPIC -Wall" ;;
- esac
-fi
-changequote([,])dnl
-
-AC_OUTPUT([Makefile])
-
+++ /dev/null
-
-CXX = g++
-CXXFLAGS = -isysroot /Developer/SDKs/MacOSX10.4u.sdk -O3 -arch i386 -arch ppc -msse -msse2 -I../include -I../vamp-plugin-sdk -Irubberband -Isrc
-LDFLAGS = -L../lib -L../vamp-plugin-sdk/vamp-sdk
-
-LIBRARY_LIBS = -lsamplerate -lfftw3 -lfftw3f
-PROGRAM_LIBS = -lsndfile $(LIBRARY_LIBS)
-VAMP_PLUGIN_LIBS = -lvamp-sdk $(LIBRARY_LIBS)
-LADSPA_PLUGIN_LIBS = $(LIBRARY_LIBS)
-
-MKDIR = mkdir
-AR = ar
-
-PROGRAM_TARGET := bin/rubberband
-STATIC_TARGET := lib/librubberband.a
-DYNAMIC_TARGET := lib/librubberband.dylib
-VAMP_TARGET := lib/vamp-rubberband.dylib
-LADSPA_TARGET := lib/ladspa-rubberband.dylib
-
-#DYNAMIC_LDFLAGS := -shared -Wl,-Bsymbolic
-DYNAMIC_LDFLAGS := -dynamiclib
-
-all: bin lib $(PROGRAM_TARGET) $(STATIC_TARGET) $(DYNAMIC_TARGET) $(VAMP_TARGET) $(LADSPA_TARGET)
-
-PUBLIC_INCLUDES := \
- rubberband/TimeStretcher.h \
- rubberband/RubberBandStretcher.h
-
-LIBRARY_INCLUDES := \
- src/AudioCurve.h \
- src/ConstantAudioCurve.h \
- src/FFT.h \
- src/HighFrequencyAudioCurve.h \
- src/PercussiveAudioCurve.h \
- src/Resampler.h \
- src/RingBuffer.h \
- src/Scavenger.h \
- src/StretchCalculator.h \
- src/StretcherImpl.h \
- src/StretcherChannelData.h \
- src/Thread.h \
- src/Window.h \
- src/sysutils.h
-
-LIBRARY_SOURCES := \
- src/RubberBandStretcher.cpp \
- src/ConstantAudioCurve.cpp \
- src/HighFrequencyAudioCurve.cpp \
- src/PercussiveAudioCurve.cpp \
- src/AudioCurve.cpp \
- src/Resampler.cpp \
- src/StretchCalculator.cpp \
- src/StretcherImpl.cpp \
- src/StretcherProcess.cpp \
- src/StretcherChannelData.cpp \
- src/FFT.cpp \
- src/Thread.cpp \
- src/sysutils.cpp
-
-PROGRAM_SOURCES := \
- src/main.cpp
-
-VAMP_HEADERS := \
- src/vamp/RubberBandVampPlugin.h
-
-VAMP_SOURCES := \
- src/vamp/RubberBandVampPlugin.cpp \
- src/vamp/libmain.cpp
-
-LADSPA_HEADERS := \
- src/ladspa/RubberBandPitchShifter.h
-
-LADSPA_SOURCES := \
- src/ladspa/RubberBandPitchShifter.cpp \
- src/ladspa/libmain.cpp
-
-LIBRARY_OBJECTS := $(LIBRARY_SOURCES:.cpp=.o)
-PROGRAM_OBJECTS := $(PROGRAM_SOURCES:.cpp=.o)
-VAMP_OBJECTS := $(VAMP_SOURCES:.cpp=.o)
-LADSPA_OBJECTS := $(LADSPA_SOURCES:.cpp=.o)
-
-$(PROGRAM_TARGET): $(LIBRARY_OBJECTS) $(PROGRAM_OBJECTS)
- $(CXX) -o $@ $^ $(PROGRAM_LIBS) $(PROGRAM_LIBS) $(LDFLAGS)
-
-$(STATIC_TARGET): $(LIBRARY_OBJECTS)
- $(AR) rsc $@ $^
-
-$(DYNAMIC_TARGET): $(LIBRARY_OBJECTS)
- $(CXX) $(DYNAMIC_LDFLAGS) $^ -o $@ $(LIBRARY_LIBS) $(LDFLAGS)
-
-$(VAMP_TARGET): $(LIBRARY_OBJECTS) $(VAMP_OBJECTS)
- $(CXX) $(DYNAMIC_LDFLAGS) -o $@ $^ $(VAMP_PLUGIN_LIBS) $(LDFLAGS)
-
-$(LADSPA_TARGET): $(LIBRARY_OBJECTS) $(LADSPA_OBJECTS)
- $(CXX) $(DYNAMIC_LDFLAGS) -o $@ $^ $(LADSPA_PLUGIN_LIBS) $(LDFLAGS)
-
-bin:
- $(MKDIR) $@
-lib:
- $(MKDIR) $@
-
-clean:
- rm -f $(LIBRARY_OBJECTS) $(PROGRAM_OBJECTS) $(LADSPA_OBJECTS) $(VAMP_OBJECTS)
-
-distclean: clean
- rm -f $(PROGRAM_TARGET) $(STATIC_TARGET) $(DYNAMIC_TARGET) $(VAMP_TARGET) $(LADSPA_TARGET)
-
-# DO NOT DELETE
-
-src/AudioCurve.o: src/AudioCurve.h
-src/ConstantAudioCurve.o: src/ConstantAudioCurve.h src/AudioCurve.h
-src/FFT.o: src/FFT.h src/Thread.h
-src/HighFrequencyAudioCurve.o: src/HighFrequencyAudioCurve.h src/AudioCurve.h
-src/HighFrequencyAudioCurve.o: src/Window.h
-src/main.o: rubberband/RubberBandStretcher.h rubberband/TimeStretcher.h
-src/PercussiveAudioCurve.o: src/PercussiveAudioCurve.h src/AudioCurve.h
-src/Resampler.o: src/Resampler.h
-src/RubberBandStretcher.o: src/StretcherImpl.h
-src/RubberBandStretcher.o: rubberband/RubberBandStretcher.h
-src/RubberBandStretcher.o: rubberband/TimeStretcher.h src/Window.h
-src/RubberBandStretcher.o: src/Thread.h src/RingBuffer.h src/Scavenger.h
-src/RubberBandStretcher.o: src/FFT.h src/sysutils.h
-src/StretchCalculator.o: src/StretchCalculator.h
-src/StretcherChannelData.o: src/StretcherChannelData.h src/StretcherImpl.h
-src/StretcherChannelData.o: rubberband/RubberBandStretcher.h
-src/StretcherChannelData.o: rubberband/TimeStretcher.h src/Window.h
-src/StretcherChannelData.o: src/Thread.h src/RingBuffer.h src/Scavenger.h
-src/StretcherChannelData.o: src/FFT.h src/sysutils.h src/Resampler.h
-src/StretcherImpl.o: src/StretcherImpl.h rubberband/RubberBandStretcher.h
-src/StretcherImpl.o: rubberband/TimeStretcher.h src/Window.h src/Thread.h
-src/StretcherImpl.o: src/RingBuffer.h src/Scavenger.h src/FFT.h
-src/StretcherImpl.o: src/sysutils.h src/PercussiveAudioCurve.h
-src/StretcherImpl.o: src/AudioCurve.h src/HighFrequencyAudioCurve.h
-src/StretcherImpl.o: src/ConstantAudioCurve.h src/StretchCalculator.h
-src/StretcherImpl.o: src/StretcherChannelData.h src/Resampler.h
-src/StretcherProcess.o: src/StretcherImpl.h rubberband/RubberBandStretcher.h
-src/StretcherProcess.o: rubberband/TimeStretcher.h src/Window.h src/Thread.h
-src/StretcherProcess.o: src/RingBuffer.h src/Scavenger.h src/FFT.h
-src/StretcherProcess.o: src/sysutils.h src/PercussiveAudioCurve.h
-src/StretcherProcess.o: src/AudioCurve.h src/HighFrequencyAudioCurve.h
-src/StretcherProcess.o: src/ConstantAudioCurve.h src/StretchCalculator.h
-src/StretcherProcess.o: src/StretcherChannelData.h src/Resampler.h
-src/sysutils.o: src/sysutils.h
-src/Thread.o: src/Thread.h
+++ /dev/null
-prefix=%PREFIX%
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include
-
-Name: rubberband
-Version: 1.0
-Description:
-Libs: -L${libdir} -lrubberband
-Cflags: -I${includedir}
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBANDSTRETCHER_H_
-#define _RUBBERBANDSTRETCHER_H_
-
-#include "TimeStretcher.h"
-
-#include <vector>
-
-namespace RubberBand
-{
-
-class RubberBandStretcher : public TimeStretcher
-{
-public:
-
- /**
- * Processing options for the timestretcher. The preferred
- * options should normally be set in the constructor, as a bitwise
- * OR of the option flags. The default value (DefaultOptions) is
- * intended to give good results in most situations.
- *
- * 1. Flags prefixed \c OptionProcess determine how the timestretcher
- * will be invoked. These options may not be changed after
- * construction.
- *
- * \li \c OptionProcessOffline - Run the stretcher in offline
- * mode. In this mode the input data needs to be provided
- * twice, once to study(), which calculates a stretch profile
- * for the audio, and once to process(), which stretches it.
- *
- * \li \c OptionProcessRealTime - Run the stretcher in real-time
- * mode. In this mode only process() should be called, and the
- * stretcher adjusts dynamically in response to the input audio.
- *
- * The Process setting is likely to depend on your architecture:
- * non-real-time operation on seekable files: Offline; real-time
- * or streaming operation: RealTime.
- *
- * 2. Flags prefixed \c OptionStretch control the profile used for
- * variable timestretching. Rubber Band always adjusts the
- * stretch profile to minimise stretching of busy broadband
- * transient sounds, but the degree to which it does so is
- * adjustable. These options may not be changed after
- * construction.
- *
- * \li \c OptionStretchElastic - Only meaningful in offline
- * mode, and the default in that mode. The audio will be
- * stretched at a variable rate, aimed at preserving the quality
- * of transient sounds as much as possible. The timings of low
- * activity regions between transients may be less exact than
- * when the precise flag is set.
- *
- * \li \c OptionStretchPrecise - Although still using a variable
- * stretch rate, the audio will be stretched so as to maintain
- * as close as possible to a linear stretch ratio throughout.
- * Timing may be better than when using \c OptionStretchElastic, at
- * slight cost to the sound quality of transients. This setting
- * is always used when running in real-time mode.
- *
- * 3. Flags prefixed \c OptionTransients control the component
- * frequency phase-reset mechanism that may be used at transient
- * points to provide clarity and realism to percussion and other
- * significant transient sounds. These options may be changed
- * after construction when running in real-time mode, but not when
- * running in offline mode.
- *
- * \li \c OptionTransientsCrisp - Reset component phases at the
- * peak of each transient (the start of a significant note or
- * percussive event). This, the default setting, usually
- * results in a clear-sounding output; but it is not always
- * consistent, and may cause interruptions in stable sounds
- * present at the same time as transient events.
- *
- * \li \c OptionTransientsMixed - Reset component phases at the
- * peak of each transient, outside a frequency range typical of
- * musical fundamental frequencies. The results may be more
- * regular for mixed stable and percussive notes than
- * \c OptionTransientsCrisp, but with a "phasier" sound. The
- * balance may sound very good for certain types of music and
- * fairly bad for others.
- *
- * \li \c OptionTransientsSmooth - Do not reset component phases
- * at any point. The results will be smoother and more regular
- * but may be less clear than with either of the other
- * transients flags.
- *
- * 4. Flags prefixed \c OptionPhase control the adjustment of
- * component frequency phases from one analysis window to the next
- * during non-transient segments. These options may be changed at
- * any time.
- *
- * \li \c OptionPhaseAdaptive - Lock the adjustments of phase
- * for frequencies close to peak frequencies to those of the
- * peak, but reduce the degree of locking as the stretch ratio
- * gets longer. This, the default setting, should give a good
- * balance between clarity and smoothness in most situations.
- *
- * \li \c OptionPhasePeakLocked - Lock the adjustments of phase
- * for frequencies close to peak frequencies to those of the
- * peak. This should give a clear result in situations with
- * relatively low stretch ratios, but a relatively metallic
- * sound at longer stretches.
- *
- * \li \c OptionPhaseIndependent - Do not lock phase adjustments
- * to peak frequencies. This usually results in a softer,
- * phasier sound.
- *
- * 5. Flags prefixed \c OptionThreading control the threading
- * model of the stretcher. These options may not be changed after
- * construction.
- *
- * \li \c OptionThreadingAuto - Permit the stretcher to
- * determine its own threading model. Usually this means using
- * one processing thread per audio channel in offline mode if
- * the stretcher is able to determine that more than one CPU is
- * available, and one thread only in realtime mode.
- *
- * \li \c OptionThreadingNever - Never use more than one thread.
- *
- * \li \c OptionThreadingAlways - Use multiple threads in any
- * situation where \c OptionThreadingAuto would do so, except omit
- * the check for multiple CPUs and instead assume it to be true.
- *
- * 6. Flags prefixed \c OptionWindow control the window size for
- * FFT processing. The window size actually used will depend on
- * many factors, but it can be influenced. These options may not
- * be changed after construction.
- *
- * \li \c OptionWindowStandard - Use the default window size.
- * The actual size will vary depending on other parameters.
- * This option is expected to produce better results than the
- * other window options in most situations.
- *
- * \li \c OptionWindowShort - Use a shorter window. This may
- * result in crisper sound for audio that depends strongly on
- * its timing qualities.
- *
- * \li \c OptionWindowLong - Use a longer window. This is
- * likely to result in a smoother sound at the expense of
- * clarity and timing.
- */
- typedef int Options;
-
- static const int OptionProcessOffline = 0x00000000;
- static const int OptionProcessRealTime = 0x00000001;
-
- static const int OptionStretchElastic = 0x00000000;
- static const int OptionStretchPrecise = 0x00000010;
-
- static const int OptionTransientsCrisp = 0x00000000;
- static const int OptionTransientsMixed = 0x00000100;
- static const int OptionTransientsSmooth = 0x00000200;
-
- static const int OptionPhaseAdaptive = 0x00000000;
- static const int OptionPhasePeakLocked = 0x00001000;
- static const int OptionPhaseIndependent = 0x00002000;
-
- static const int OptionThreadingAuto = 0x00000000;
- static const int OptionThreadingNever = 0x00010000;
- static const int OptionThreadingAlways = 0x00020000;
-
- static const int OptionWindowStandard = 0x00000000;
- static const int OptionWindowShort = 0x00100000;
- static const int OptionWindowLong = 0x00200000;
-
- static const int DefaultOptions = 0x00000000;
- static const int PercussiveOptions = OptionWindowShort | \
- OptionPhaseIndependent;
-
- /**
- * Construct a time and pitch stretcher object to run at the given
- * sample rate, with the given number of channels. Processing
- * options and the time and pitch scaling ratios may be provided.
- * The time and pitch ratios may be changed after construction,
- * but most of the options may not. See the option documentation
- * above for more details.
- */
- RubberBandStretcher(size_t sampleRate,
- size_t channels,
- Options options = DefaultOptions,
- double initialTimeRatio = 1.0,
- double initialPitchScale = 1.0);
- virtual ~RubberBandStretcher();
-
- /**
- * Reset the stretcher's internal buffers. The stretcher should
- * subsequently behave as if it had just been constructed
- * (although retaining the current time and pitch ratio).
- */
- virtual void reset();
-
- /**
- * Set the time ratio for the stretcher. This is the ratio of
- * stretched to unstretched duration -- not tempo. For example, a
- * ratio of 2.0 would make the audio twice as long (i.e. halve the
- * tempo); 0.5 would make it half as long (i.e. double the tempo);
- * 1.0 would leave the duration unaffected.
- *
- * If the stretcher was constructed in Offline mode, the time
- * ratio is fixed throughout operation; this function may be
- * called any number of times between construction (or a call to
- * reset()) and the first call to study() or process(), but may
- * not be called after study() or process() has been called.
- *
- * If the stretcher was constructed in RealTime mode, the time
- * ratio may be varied during operation; this function may be
- * called at any time, so long as it is not called concurrently
- * with process(). You should either call this function from the
- * same thread as process(), or provide your own mutex or similar
- * mechanism to ensure that setTimeRatio and process() cannot be
- * run at once (there is no internal mutex for this purpose).
- */
- virtual void setTimeRatio(double ratio);
-
- /**
- * Set the pitch scaling ratio for the stretcher. This is the
- * ratio of target frequency to source frequency. For example, a
- * ratio of 2.0 would shift up by one octave; 0.5 down by one
- * octave; or 1.0 leave the pitch unaffected.
- *
- * To put this in musical terms, a pitch scaling ratio
- * corresponding to a shift of S equal-tempered semitones (where S
- * is positive for an upwards shift and negative for downwards) is
- * pow(2.0, S / 12.0).
- *
- * If the stretcher was constructed in Offline mode, the pitch
- * scaling ratio is fixed throughout operation; this function may
- * be called any number of times between construction (or a call
- * to reset()) and the first call to study() or process(), but may
- * not be called after study() or process() has been called.
- *
- * If the stretcher was constructed in RealTime mode, the pitch
- * scaling ratio may be varied during operation; this function may
- * be called at any time, so long as it is not called concurrently
- * with process(). You should either call this function from the
- * same thread as process(), or provide your own mutex or similar
- * mechanism to ensure that setPitchScale and process() cannot be
- * run at once (there is no internal mutex for this purpose).
- */
- virtual void setPitchScale(double scale);
-
- /**
- * Return the last time ratio value that was set (either on
- * construction or with setTimeRatio()).
- */
- virtual double getTimeRatio() const;
-
- /**
- * Return the last pitch scaling ratio value that was set (either
- * on construction or with setPitchScale()).
- */
- virtual double getPitchScale() const;
-
- /**
- * Return the processing latency of the stretcher. This is the
- * number of audio samples that one would have to discard at the
- * start of the output in order to ensure that the resulting audio
- * aligned with the input audio at the start. In Offline mode,
- * latency is automatically adjusted for and the result is zero.
- * In RealTime mode, the latency may depend on the time and pitch
- * ratio and other options.
- */
- virtual size_t getLatency() const;
-
- /**
- * Change an OptionTransients configuration setting. This may be
- * called at any time in RealTime mode. It may not be called in
- * Offline mode (for which the transients option is fixed on
- * construction).
- */
- virtual void setTransientsOption(Options options);
-
- /**
- * Change an OptionPhase configuration setting. This may be
- * called at any time in any mode.
- *
- * Note that if running multi-threaded in Offline mode, the change
- * may not take effect immediately if processing is already under
- * way when this function is called.
- */
- virtual void setPhaseOption(Options options);
-
- /**
- * Tell the stretcher exactly how many input samples it will
- * receive. This is only useful in Offline mode, when it allows
- * the stretcher to ensure that the number of output samples is
- * exactly correct. In RealTime mode no such guarantee is
- * possible and this value is ignored.
- */
- virtual void setExpectedInputDuration(size_t samples);
-
- /**
- * Ask the stretcher how many audio sample frames should be
- * provided as input in order to ensure that some more output
- * becomes available. Normal usage consists of querying this
- * function, providing that number of samples to process(),
- * reading the output using available() and retrieve(), and then
- * repeating.
- *
- * Note that this value is only relevant to process(), not to
- * study() (to which you may pass any number of samples at a time,
- * and from which there is no output).
- */
- virtual size_t getSamplesRequired() const;
-
- /**
- * Tell the stretcher the maximum number of sample frames that you
- * will ever be passing in to a single process() call. If you
- * don't call this function, the stretcher will assume that you
- * never pass in more samples than getSamplesRequired() suggested
- * you should. You should not pass in more samples than that
- * unless you have called setMaxProcessSize first.
- *
- * This function may not be called after the first call to study()
- * or process().
- *
- * Note that this value is only relevant to process(), not to
- * study() (to which you may pass any number of samples at a time,
- * and from which there is no output).
- */
- virtual void setMaxProcessSize(size_t samples);
-
- /**
- * Provide a block of "samples" sample frames for the stretcher to
- * study and calculate a stretch profile from.
- *
- * This is only meaningful in Offline mode, and is required if
- * running in that mode. You should pass the entire input through
- * study() before any process() calls are made, as a sequence of
- * blocks in individual study() calls, or as a single large block.
- *
- * "input" should point to de-interleaved audio data with one
- * float array per channel. "samples" supplies the number of
- * audio sample frames available in "input". If "samples" is
- * zero, "input" may be NULL.
- *
- * Set "final" to true if this is the last block of data that will
- * be provided to study() before the first process() call.
- */
- virtual void study(const float *const *input, size_t samples, bool final);
-
- /**
- * Provide a block of "samples" sample frames for processing.
- * See also getSamplesRequired() and setMaxProcessSize().
- *
- * Set "final" to true if this is the last block of input data.
- */
- virtual void process(const float *const *input, size_t samples, bool final);
-
- /**
- * Ask the stretcher how many audio sample frames of output data
- * are available for reading (via retrieve()).
- *
- * This function returns 0 if no frames are available: this
- * usually means more input data needs to be provided, but if the
- * stretcher is running in threaded mode it may just mean that not
- * enough data has yet been processed. Call getSamplesRequired()
- * to discover whether more input is needed.
- *
- * This function returns -1 if all data has been fully processed
- * and all output read, and the stretch process is now finished.
- */
- virtual int available() const;
-
- /**
- * Obtain some processed output data from the stretcher. Up to
- * "samples" samples will be stored in the output arrays (one per
- * channel for de-interleaved audio data) pointed to by "output".
- * The return value is the actual number of sample frames
- * retrieved.
- */
- virtual size_t retrieve(float *const *output, size_t samples) const;
-
- virtual float getFrequencyCutoff(int n) const;
- virtual void setFrequencyCutoff(int n, float f);
-
- virtual size_t getInputIncrement() const;
- virtual std::vector<int> getOutputIncrements() const; //!!! document particular meaning in RT mode
- virtual std::vector<float> getPhaseResetCurve() const; //!!! document particular meaning in RT mode
- virtual std::vector<int> getExactTimePoints() const; //!!! meaningless in RT mode
-
- virtual size_t getChannelCount() const;
-
- virtual void calculateStretch();
-
- virtual void setDebugLevel(int level);
-
- static void setDefaultDebugLevel(int level);
-
-protected:
- class Impl;
- Impl *m_d;
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_TIMESTRETCHER_H_
-#define _RUBBERBAND_TIMESTRETCHER_H_
-
-#include <sys/types.h>
-
-namespace RubberBand
-{
-
-/**
- * Base class for time stretchers. RubberBand currently provides only
- * a single subclass implementation.
- *
- * @see RubberBandStretcher
- */
-class TimeStretcher
-{
-public:
- TimeStretcher(size_t sampleRate, size_t channels) :
- m_sampleRate(sampleRate),
- m_channels(channels)
- { }
- virtual ~TimeStretcher()
- { }
-
- virtual void reset() = 0;
- virtual void setTimeRatio(double ratio) = 0;
- virtual void setPitchScale(double scale) = 0;
- virtual size_t getLatency() const = 0;
-
- virtual void study(const float *const *input, size_t samples, bool final) = 0;
- virtual size_t getSamplesRequired() const = 0;
- virtual void process(const float *const *input, size_t samples, bool final) = 0;
- virtual int available() const = 0;
- virtual size_t retrieve(float *const *output, size_t samples) const = 0;
-
-protected:
- size_t m_sampleRate;
- size_t m_channels;
-};
-
-}
-
-#endif
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "AudioCurve.h"
-
-namespace RubberBand
-{
-
-AudioCurve::AudioCurve(size_t sampleRate, size_t windowSize) :
- m_sampleRate(sampleRate),
- m_windowSize(windowSize)
-{
-}
-
-AudioCurve::~AudioCurve()
-{
-}
-
-
-}
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _AUDIO_CURVE_H_
-#define _AUDIO_CURVE_H_
-
-#include <sys/types.h>
-
-namespace RubberBand
-{
-
-class AudioCurve
-{
-public:
- AudioCurve(size_t sampleRate, size_t windowSize);
- virtual ~AudioCurve();
-
- virtual void setWindowSize(size_t newSize) = 0;
-
- virtual float process(float *mag, size_t increment) = 0;
- virtual void reset() = 0;
-
-protected:
- size_t m_sampleRate;
- size_t m_windowSize;
-};
-
-}
-
-#endif
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "ConstantAudioCurve.h"
-
-namespace RubberBand
-{
-
-ConstantAudioCurve::ConstantAudioCurve(size_t sampleRate, size_t windowSize) :
- AudioCurve(sampleRate, windowSize)
-{
-}
-
-ConstantAudioCurve::~ConstantAudioCurve()
-{
-}
-
-void
-ConstantAudioCurve::reset()
-{
-}
-
-void
-ConstantAudioCurve::setWindowSize(size_t newSize)
-{
- m_windowSize = newSize;
-}
-
-float
-ConstantAudioCurve::process(float *, size_t)
-{
- return 1.f;
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _CONSTANT_AUDIO_CURVE_H_
-#define _CONSTANT_AUDIO_CURVE_H_
-
-#include "AudioCurve.h"
-
-namespace RubberBand
-{
-
-class ConstantAudioCurve : public AudioCurve
-{
-public:
- ConstantAudioCurve(size_t sampleRate, size_t windowSize);
- virtual ~ConstantAudioCurve();
-
- virtual void setWindowSize(size_t newSize);
-
- virtual float process(float *mag, size_t increment);
- virtual void reset();
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "FFT.h"
-#include "Thread.h"
-
-
-#include <fftw3.h>
-
-#include <cmath>
-#include <iostream>
-#include <map>
-#include <cstdio>
-#include <vector>
-
-namespace RubberBand {
-
-class FFTImpl
-{
-public:
- virtual ~FFTImpl() { }
-
- virtual void initFloat() = 0;
- virtual void initDouble() = 0;
-
- virtual void forward(double *realIn, double *realOut, double *imagOut) = 0;
- virtual void forwardPolar(double *realIn, double *magOut, double *phaseOut) = 0;
- virtual void forwardMagnitude(double *realIn, double *magOut) = 0;
-
- virtual void forward(float *realIn, float *realOut, float *imagOut) = 0;
- virtual void forwardPolar(float *realIn, float *magOut, float *phaseOut) = 0;
- virtual void forwardMagnitude(float *realIn, float *magOut) = 0;
-
- virtual void inverse(double *realIn, double *imagIn, double *realOut) = 0;
- virtual void inversePolar(double *magIn, double *phaseIn, double *realOut) = 0;
-
- virtual void inverse(float *realIn, float *imagIn, float *realOut) = 0;
- virtual void inversePolar(float *magIn, float *phaseIn, float *realOut) = 0;
-
- virtual float *getFloatTimeBuffer() = 0;
- virtual double *getDoubleTimeBuffer() = 0;
-};
-
-
-
-
-// Define FFTW_DOUBLE_ONLY to make all uses of FFTW functions be
-// double-precision (so "float" FFTs are calculated by casting to
-// doubles and using the double-precision FFTW function).
-//
-// Define FFTW_FLOAT_ONLY to make all uses of FFTW functions be
-// single-precision (so "double" FFTs are calculated by casting to
-// floats and using the single-precision FFTW function).
-//
-// Neither of these flags is terribly desirable -- FFTW_FLOAT_ONLY
-// obviously loses you precision, and neither is handled in the most
-// efficient way so any performance improvement will be small at best.
-// The only real reason to define either flag would be to avoid
-// linking against both fftw3 and fftw3f libraries.
-
-//#define FFTW_DOUBLE_ONLY 1
-//#define FFTW_FLOAT_ONLY 1
-
-#ifdef FFTW_DOUBLE_ONLY
-#ifdef FFTW_FLOAT_ONLY
-// Can't meaningfully define both
-#undef FFTW_DOUBLE_ONLY
-#undef FFTW_FLOAT_ONLY
-#else /* !FFTW_FLOAT_ONLY */
-#define fftwf_complex fftw_complex
-#define fftwf_plan fftw_plan
-#define fftwf_plan_dft_r2c_1d fftw_plan_dft_r2c_1d
-#define fftwf_plan_dft_c2r_1d fftw_plan_dft_c2r_1d
-#define fftwf_destroy_plan fftw_destroy_plan
-#define fftwf_malloc fftw_malloc
-#define fftwf_free fftw_free
-#define fftwf_execute fftw_execute
-#define atan2f atan2
-#define sqrtf sqrt
-#define cosf cos
-#define sinf sin
-#endif /* !FFTW_FLOAT_ONLY */
-
-#ifdef FFTW_FLOAT_ONLY
-#define fftw_complex fftwf_complex
-#define fftw_plan fftwf_plan
-#define fftw_plan_dft_r2c_1d fftwf_plan_dft_r2c_1d
-#define fftw_plan_dft_c2r_1d fftwf_plan_dft_c2r_1d
-#define fftw_destroy_plan fftwf_destroy_plan
-#define fftw_malloc fftwf_malloc
-#define fftw_free fftwf_free
-#define fftw_execute fftwf_execute
-#define atan2 atan2f
-#define sqrt sqrtf
-#define cos cosf
-#define sif sinf
-#endif /* FFTW_FLOAT_ONLY */
-
-class D_FFTW : public FFTImpl
-{
-public:
- D_FFTW(unsigned int size) : m_fplanf(0)
-#ifdef FFTW_DOUBLE_ONLY
- , m_frb(0)
-#endif
- , m_dplanf(0)
-#ifdef FFTW_FLOAT_ONLY
- , m_drb(0)
-#endif
- , m_size(size)
- {
- }
-
- ~D_FFTW() {
- if (m_fplanf) {
- bool save = false;
- m_extantMutex.lock();
- if (m_extantf > 0 && --m_extantf == 0) save = true;
- m_extantMutex.unlock();
- if (save) saveWisdom('f');
- fftwf_destroy_plan(m_fplanf);
- fftwf_destroy_plan(m_fplani);
- fftwf_free(m_fbuf);
- fftwf_free(m_fpacked);
-#ifdef FFTW_DOUBLE_ONLY
- if (m_frb) fftw_free(m_frb);
-#endif
- }
- if (m_dplanf) {
- bool save = false;
- m_extantMutex.lock();
- if (m_extantd > 0 && --m_extantd == 0) save = true;
- m_extantMutex.unlock();
- if (save) saveWisdom('d');
- fftw_destroy_plan(m_dplanf);
- fftw_destroy_plan(m_dplani);
- fftw_free(m_dbuf);
- fftw_free(m_dpacked);
-#ifdef FFTW_FLOAT_ONLY
- if (m_drb) fftwf_free(m_drb);
-#endif
- }
- }
-
- void initFloat() {
- if (m_fplanf) return;
- bool load = false;
- m_extantMutex.lock();
- if (m_extantf++ == 0) load = true;
- m_extantMutex.unlock();
-#ifdef FFTW_DOUBLE_ONLY
- if (load) loadWisdom('d');
- m_fbuf = (double *)fftw_malloc(m_size * sizeof(double));
-#else
- if (load) loadWisdom('f');
- m_fbuf = (float *)fftwf_malloc(m_size * sizeof(float));
-#endif
- m_fpacked = (fftwf_complex *)fftw_malloc
- ((m_size/2 + 1) * sizeof(fftwf_complex));
- m_fplanf = fftwf_plan_dft_r2c_1d
- (m_size, m_fbuf, m_fpacked, FFTW_MEASURE);
- m_fplani = fftwf_plan_dft_c2r_1d
- (m_size, m_fpacked, m_fbuf, FFTW_MEASURE);
- }
-
- void initDouble() {
- if (m_dplanf) return;
- bool load = false;
- m_extantMutex.lock();
- if (m_extantd++ == 0) load = true;
- m_extantMutex.unlock();
-#ifdef FFTW_FLOAT_ONLY
- if (load) loadWisdom('f');
- m_dbuf = (float *)fftwf_malloc(m_size * sizeof(float));
-#else
- if (load) loadWisdom('d');
- m_dbuf = (double *)fftw_malloc(m_size * sizeof(double));
-#endif
- m_dpacked = (fftw_complex *)fftw_malloc
- ((m_size/2 + 1) * sizeof(fftw_complex));
- m_dplanf = fftw_plan_dft_r2c_1d
- (m_size, m_dbuf, m_dpacked, FFTW_MEASURE);
- m_dplani = fftw_plan_dft_c2r_1d
- (m_size, m_dpacked, m_dbuf, FFTW_MEASURE);
- }
-
- void loadWisdom(char type) { wisdom(false, type); }
- void saveWisdom(char type) { wisdom(true, type); }
-
- void wisdom(bool save, char type) {
-
-#ifdef FFTW_DOUBLE_ONLY
- if (type == 'f') return;
-#endif
-#ifdef FFTW_FLOAT_ONLY
- if (type == 'd') return;
-#endif
-
- const char *home = getenv("HOME");
- if (!home) return;
-
- char fn[256];
- snprintf(fn, 256, "%s/%s.%c", home, ".rubberband.wisdom", type);
-
- FILE *f = fopen(fn, save ? "wb" : "rb");
- if (!f) return;
-
- if (save) {
- switch (type) {
-#ifdef FFTW_DOUBLE_ONLY
- case 'f': break;
-#else
- case 'f': fftwf_export_wisdom_to_file(f); break;
-#endif
-#ifdef FFTW_FLOAT_ONLY
- case 'd': break;
-#else
- case 'd': fftw_export_wisdom_to_file(f); break;
-#endif
- default: break;
- }
- } else {
- switch (type) {
-#ifdef FFTW_DOUBLE_ONLY
- case 'f': break;
-#else
- case 'f': fftwf_import_wisdom_from_file(f); break;
-#endif
-#ifdef FFTW_FLOAT_ONLY
- case 'd': break;
-#else
- case 'd': fftw_import_wisdom_from_file(f); break;
-#endif
- default: break;
- }
- }
-
- fclose(f);
- }
-
- void packFloat(float *re, float *im) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- m_fpacked[i][0] = re[i];
- m_fpacked[i][1] = im[i];
- }
- }
-
- void packDouble(double *re, double *im) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- m_dpacked[i][0] = re[i];
- m_dpacked[i][1] = im[i];
- }
- }
-
- void unpackFloat(float *re, float *im) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- re[i] = m_fpacked[i][0];
- im[i] = m_fpacked[i][1];
- }
- }
-
- void unpackDouble(double *re, double *im) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- re[i] = m_dpacked[i][0];
- im[i] = m_dpacked[i][1];
- }
- }
-
- void forward(double *realIn, double *realOut, double *imagOut) {
- if (!m_dplanf) initDouble();
-#ifndef FFTW_FLOAT_ONLY
- if (realIn != m_dbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- m_dbuf[i] = realIn[i];
- }
- fftw_execute(m_dplanf);
- unpackDouble(realOut, imagOut);
- }
-
- void forwardPolar(double *realIn, double *magOut, double *phaseOut) {
- if (!m_dplanf) initDouble();
-#ifndef FFTW_FLOAT_ONLY
- if (realIn != m_dbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- m_dbuf[i] = realIn[i];
- }
- fftw_execute(m_dplanf);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrt(m_dpacked[i][0] * m_dpacked[i][0] +
- m_dpacked[i][1] * m_dpacked[i][1]);
- }
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- phaseOut[i] = atan2(m_dpacked[i][1], m_dpacked[i][0]);
- }
- }
-
- void forwardMagnitude(double *realIn, double *magOut) {
- if (!m_dplanf) initDouble();
-#ifndef FFTW_FLOAT_ONLY
- if (realIn != m_dbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- m_dbuf[i] = realIn[i];
- }
- fftw_execute(m_dplanf);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrt(m_dpacked[i][0] * m_dpacked[i][0] +
- m_dpacked[i][1] * m_dpacked[i][1]);
- }
- }
-
- void forward(float *realIn, float *realOut, float *imagOut) {
- if (!m_fplanf) initFloat();
-#ifndef FFTW_DOUBLE_ONLY
- if (realIn != m_fbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- m_fbuf[i] = realIn[i];
- }
- fftwf_execute(m_fplanf);
- unpackFloat(realOut, imagOut);
- }
-
- void forwardPolar(float *realIn, float *magOut, float *phaseOut) {
- if (!m_fplanf) initFloat();
-#ifndef FFTW_DOUBLE_ONLY
- if (realIn != m_fbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- m_fbuf[i] = realIn[i];
- }
- fftwf_execute(m_fplanf);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrtf(m_fpacked[i][0] * m_fpacked[i][0] +
- m_fpacked[i][1] * m_fpacked[i][1]);
- }
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- phaseOut[i] = atan2f(m_fpacked[i][1], m_fpacked[i][0]) ;
- }
- }
-
- void forwardMagnitude(float *realIn, float *magOut) {
- if (!m_fplanf) initFloat();
-#ifndef FFTW_DOUBLE_ONLY
- if (realIn != m_fbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- m_fbuf[i] = realIn[i];
- }
- fftwf_execute(m_fplanf);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrtf(m_fpacked[i][0] * m_fpacked[i][0] +
- m_fpacked[i][1] * m_fpacked[i][1]);
- }
- }
-
- void inverse(double *realIn, double *imagIn, double *realOut) {
- if (!m_dplanf) initDouble();
- packDouble(realIn, imagIn);
- fftw_execute(m_dplani);
-#ifndef FFTW_FLOAT_ONLY
- if (realOut != m_dbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- realOut[i] = m_dbuf[i];
- }
- }
-
- void inversePolar(double *magIn, double *phaseIn, double *realOut) {
- if (!m_dplanf) initDouble();
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- m_dpacked[i][0] = magIn[i] * cos(phaseIn[i]);
- m_dpacked[i][1] = magIn[i] * sin(phaseIn[i]);
- }
- fftw_execute(m_dplani);
-#ifndef FFTW_FLOAT_ONLY
- if (realOut != m_dbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- realOut[i] = m_dbuf[i];
- }
- }
-
- void inverse(float *realIn, float *imagIn, float *realOut) {
- if (!m_fplanf) initFloat();
- packFloat(realIn, imagIn);
- fftwf_execute(m_fplani);
-#ifndef FFTW_DOUBLE_ONLY
- if (realOut != m_fbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- realOut[i] = m_fbuf[i];
- }
- }
-
- void inversePolar(float *magIn, float *phaseIn, float *realOut) {
- if (!m_fplanf) initFloat();
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- m_fpacked[i][0] = magIn[i] * cosf(phaseIn[i]);
- m_fpacked[i][1] = magIn[i] * sinf(phaseIn[i]);
- }
- fftwf_execute(m_fplani);
-#ifndef FFTW_DOUBLE_ONLY
- if (realOut != m_fbuf)
-#endif
- for (unsigned int i = 0; i < m_size; ++i) {
- realOut[i] = m_fbuf[i];
- }
- }
-
- float *getFloatTimeBuffer() {
- initFloat();
-#ifdef FFTW_DOUBLE_ONLY
- if (!m_frb) m_frb = (float *)fftw_malloc(m_size * sizeof(float));
- return m_frb;
-#else
- return m_fbuf;
-#endif
- }
-
- double *getDoubleTimeBuffer() {
- initDouble();
-#ifdef FFTW_FLOAT_ONLY
- if (!m_drb) m_drb = (double *)fftwf_malloc(m_size * sizeof(double));
- return m_drb;
-#else
- return m_dbuf;
-#endif
- }
-
-private:
- fftwf_plan m_fplanf;
- fftwf_plan m_fplani;
-#ifdef FFTW_DOUBLE_ONLY
- float *m_frb;
- double *m_fbuf;
-#else
- float *m_fbuf;
-#endif
- fftwf_complex *m_fpacked;
- fftw_plan m_dplanf;
- fftw_plan m_dplani;
-#ifdef FFTW_FLOAT_ONLY
- float *m_dbuf;
- double *m_drb;
-#else
- double *m_dbuf;
-#endif
- fftw_complex *m_dpacked;
- unsigned int m_size;
- static unsigned int m_extantf;
- static unsigned int m_extantd;
- static Mutex m_extantMutex;
-};
-
-unsigned int
-D_FFTW::m_extantf = 0;
-
-unsigned int
-D_FFTW::m_extantd = 0;
-
-Mutex
-D_FFTW::m_extantMutex;
-
-#endif
-
-class D_Cross : public FFTImpl
-{
-public:
- D_Cross(unsigned int size) : m_size(size), m_table(0), m_frb(0), m_drb(0) {
-
- m_a = new double[size];
- m_b = new double[size];
- m_c = new double[size];
- m_d = new double[size];
-
- m_table = new int[m_size];
-
- unsigned int bits;
- unsigned int i, j, k, m;
-
- for (i = 0; ; ++i) {
- if (m_size & (1 << i)) {
- bits = i;
- break;
- }
- }
-
- for (i = 0; i < m_size; ++i) {
-
- m = i;
-
- for (j = k = 0; j < bits; ++j) {
- k = (k << 1) | (m & 1);
- m >>= 1;
- }
-
- m_table[i] = k;
- }
- }
-
- ~D_Cross() {
- delete[] m_table;
- delete[] m_a;
- delete[] m_b;
- delete[] m_c;
- delete[] m_d;
- delete[] m_frb;
- delete[] m_drb;
- }
-
- void initFloat() { }
- void initDouble() { }
-
- void forward(double *realIn, double *realOut, double *imagOut) {
- basefft(false, realIn, 0, m_c, m_d);
- for (size_t i = 0; i <= m_size/2; ++i) realOut[i] = m_c[i];
- for (size_t i = 0; i <= m_size/2; ++i) imagOut[i] = m_d[i];
- }
-
- void forwardPolar(double *realIn, double *magOut, double *phaseOut) {
- basefft(false, realIn, 0, m_c, m_d);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrt(m_c[i] * m_c[i] + m_d[i] * m_d[i]);
- phaseOut[i] = atan2(m_d[i], m_c[i]) ;
- }
- }
-
- void forwardMagnitude(double *realIn, double *magOut) {
- basefft(false, realIn, 0, m_c, m_d);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrt(m_c[i] * m_c[i] + m_d[i] * m_d[i]);
- }
- }
-
- void forward(float *realIn, float *realOut, float *imagOut) {
- for (size_t i = 0; i < m_size; ++i) m_a[i] = realIn[i];
- basefft(false, m_a, 0, m_c, m_d);
- for (size_t i = 0; i <= m_size/2; ++i) realOut[i] = m_c[i];
- for (size_t i = 0; i <= m_size/2; ++i) imagOut[i] = m_d[i];
- }
-
- void forwardPolar(float *realIn, float *magOut, float *phaseOut) {
- for (size_t i = 0; i < m_size; ++i) m_a[i] = realIn[i];
- basefft(false, m_a, 0, m_c, m_d);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrt(m_c[i] * m_c[i] + m_d[i] * m_d[i]);
- phaseOut[i] = atan2(m_d[i], m_c[i]) ;
- }
- }
-
- void forwardMagnitude(float *realIn, float *magOut) {
- for (size_t i = 0; i < m_size; ++i) m_a[i] = realIn[i];
- basefft(false, m_a, 0, m_c, m_d);
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- magOut[i] = sqrt(m_c[i] * m_c[i] + m_d[i] * m_d[i]);
- }
- }
-
- void inverse(double *realIn, double *imagIn, double *realOut) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- double real = realIn[i];
- double imag = imagIn[i];
- m_a[i] = real;
- m_b[i] = imag;
- if (i > 0) {
- m_a[m_size-i] = real;
- m_b[m_size-i] = -imag;
- }
- }
- basefft(true, m_a, m_b, realOut, m_d);
- }
-
- void inversePolar(double *magIn, double *phaseIn, double *realOut) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- double real = magIn[i] * cos(phaseIn[i]);
- double imag = magIn[i] * sin(phaseIn[i]);
- m_a[i] = real;
- m_b[i] = imag;
- if (i > 0) {
- m_a[m_size-i] = real;
- m_b[m_size-i] = -imag;
- }
- }
- basefft(true, m_a, m_b, realOut, m_d);
- }
-
- void inverse(float *realIn, float *imagIn, float *realOut) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- float real = realIn[i];
- float imag = imagIn[i];
- m_a[i] = real;
- m_b[i] = imag;
- if (i > 0) {
- m_a[m_size-i] = real;
- m_b[m_size-i] = -imag;
- }
- }
- basefft(true, m_a, m_b, m_c, m_d);
- for (unsigned int i = 0; i < m_size; ++i) realOut[i] = m_c[i];
- }
-
- void inversePolar(float *magIn, float *phaseIn, float *realOut) {
- for (unsigned int i = 0; i <= m_size/2; ++i) {
- float real = magIn[i] * cosf(phaseIn[i]);
- float imag = magIn[i] * sinf(phaseIn[i]);
- m_a[i] = real;
- m_b[i] = imag;
- if (i > 0) {
- m_a[m_size-i] = real;
- m_b[m_size-i] = -imag;
- }
- }
- basefft(true, m_a, m_b, m_c, m_d);
- for (unsigned int i = 0; i < m_size; ++i) realOut[i] = m_c[i];
- }
-
- float *getFloatTimeBuffer() {
- if (!m_frb) m_frb = new float[m_size];
- return m_frb;
- }
-
- double *getDoubleTimeBuffer() {
- if (!m_drb) m_drb = new double[m_size];
- return m_drb;
- }
-
-private:
- unsigned int m_size;
- int *m_table;
- float *m_frb;
- double *m_drb;
- double *m_a;
- double *m_b;
- double *m_c;
- double *m_d;
- void basefft(bool inverse, double *ri, double *ii, double *ro, double *io);
-};
-
-void
-D_Cross::basefft(bool inverse, double *ri, double *ii, double *ro, double *io)
-{
- if (!ri || !ro || !io) return;
-
- unsigned int i, j, k, m;
- unsigned int blockSize, blockEnd;
-
- double tr, ti;
-
- double angle = 2.0 * M_PI;
- if (inverse) angle = -angle;
-
- const unsigned int n = m_size;
-
- if (ii) {
- for (i = 0; i < n; ++i) {
- ro[m_table[i]] = ri[i];
- io[m_table[i]] = ii[i];
- }
- } else {
- for (i = 0; i < n; ++i) {
- ro[m_table[i]] = ri[i];
- io[m_table[i]] = 0.0;
- }
- }
-
- blockEnd = 1;
-
- for (blockSize = 2; blockSize <= n; blockSize <<= 1) {
-
- double delta = angle / (double)blockSize;
- double sm2 = -sin(-2 * delta);
- double sm1 = -sin(-delta);
- double cm2 = cos(-2 * delta);
- double cm1 = cos(-delta);
- double w = 2 * cm1;
- double ar[3], ai[3];
-
- for (i = 0; i < n; i += blockSize) {
-
- ar[2] = cm2;
- ar[1] = cm1;
-
- ai[2] = sm2;
- ai[1] = sm1;
-
- for (j = i, m = 0; m < blockEnd; j++, m++) {
-
- ar[0] = w * ar[1] - ar[2];
- ar[2] = ar[1];
- ar[1] = ar[0];
-
- ai[0] = w * ai[1] - ai[2];
- ai[2] = ai[1];
- ai[1] = ai[0];
-
- k = j + blockEnd;
- tr = ar[0] * ro[k] - ai[0] * io[k];
- ti = ar[0] * io[k] + ai[0] * ro[k];
-
- ro[k] = ro[j] - tr;
- io[k] = io[j] - ti;
-
- ro[j] += tr;
- io[j] += ti;
- }
- }
-
- blockEnd = blockSize;
- }
-
-/* fftw doesn't rescale, so nor will we
-
- if (inverse) {
-
- double denom = (double)n;
-
- for (i = 0; i < n; i++) {
- ro[i] /= denom;
- io[i] /= denom;
- }
- }
-*/
-}
-
-int
-FFT::m_method = -1;
-
-FFT::FFT(unsigned int size)
-{
- if (size < 2) throw InvalidSize;
- if (size & (size-1)) throw InvalidSize;
-
- if (m_method == -1) {
- m_method = 1;
- }
-
- switch (m_method) {
-
- case 0:
- d = new D_Cross(size);
- break;
-
- case 1:
-// std::cerr << "FFT::FFT(" << size << "): using FFTW3 implementation"
-// << std::endl;
- d = new D_FFTW(size);
- break;
-
- default:
- std::cerr << "FFT::FFT(" << size << "): WARNING: using slow built-in implementation"
- << std::endl;
- d = new D_Cross(size);
- break;
- }
-}
-
-FFT::~FFT()
-{
- delete d;
-}
-
-void
-FFT::forward(double *realIn, double *realOut, double *imagOut)
-{
- d->forward(realIn, realOut, imagOut);
-}
-
-void
-FFT::forwardPolar(double *realIn, double *magOut, double *phaseOut)
-{
- d->forwardPolar(realIn, magOut, phaseOut);
-}
-
-void
-FFT::forwardMagnitude(double *realIn, double *magOut)
-{
- d->forwardMagnitude(realIn, magOut);
-}
-
-void
-FFT::forward(float *realIn, float *realOut, float *imagOut)
-{
- d->forward(realIn, realOut, imagOut);
-}
-
-void
-FFT::forwardPolar(float *realIn, float *magOut, float *phaseOut)
-{
- d->forwardPolar(realIn, magOut, phaseOut);
-}
-
-void
-FFT::forwardMagnitude(float *realIn, float *magOut)
-{
- d->forwardMagnitude(realIn, magOut);
-}
-
-void
-FFT::inverse(double *realIn, double *imagIn, double *realOut)
-{
- d->inverse(realIn, imagIn, realOut);
-}
-
-void
-FFT::inversePolar(double *magIn, double *phaseIn, double *realOut)
-{
- d->inversePolar(magIn, phaseIn, realOut);
-}
-
-void
-FFT::inverse(float *realIn, float *imagIn, float *realOut)
-{
- d->inverse(realIn, imagIn, realOut);
-}
-
-void
-FFT::inversePolar(float *magIn, float *phaseIn, float *realOut)
-{
- d->inversePolar(magIn, phaseIn, realOut);
-}
-
-void
-FFT::initFloat()
-{
- d->initFloat();
-}
-
-void
-FFT::initDouble()
-{
- d->initDouble();
-}
-
-float *
-FFT::getFloatTimeBuffer()
-{
- return d->getFloatTimeBuffer();
-}
-
-double *
-FFT::getDoubleTimeBuffer()
-{
- return d->getDoubleTimeBuffer();
-}
-
-
-void
-FFT::tune()
-{
-}
-
-
-}
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_FFT_H_
-#define _RUBBERBAND_FFT_H_
-
-namespace RubberBand {
-
-class FFTImpl;
-
-/**
- * Provide the basic FFT computations we need, using one of a set of
- * candidate FFT implementations (depending on compile flags).
- *
- * Implements real->complex FFTs of power-of-two sizes only. Note
- * that only the first half of the output signal is returned (the
- * complex conjugates half is omitted), so the "complex" arrays need
- * room for size/2+1 elements.
- *
- * Not thread safe: use a separate instance per thread.
- */
-
-class FFT
-{
-public:
- enum Exception { InvalidSize };
-
- FFT(unsigned int size); // may throw InvalidSize
- ~FFT();
-
- void forward(double *realIn, double *realOut, double *imagOut);
- void forwardPolar(double *realIn, double *magOut, double *phaseOut);
- void forwardMagnitude(double *realIn, double *magOut);
-
- void forward(float *realIn, float *realOut, float *imagOut);
- void forwardPolar(float *realIn, float *magOut, float *phaseOut);
- void forwardMagnitude(float *realIn, float *magOut);
-
- void inverse(double *realIn, double *imagIn, double *realOut);
- void inversePolar(double *magIn, double *phaseIn, double *realOut);
-
- void inverse(float *realIn, float *imagIn, float *realOut);
- void inversePolar(float *magIn, float *phaseIn, float *realOut);
-
- // Calling one or both of these is optional -- if neither is
- // called, the first call to a forward or inverse method will call
- // init(). You only need call these if you don't want to risk
- // expensive allocations etc happening in forward or inverse.
- void initFloat();
- void initDouble();
-
- float *getFloatTimeBuffer();
- double *getDoubleTimeBuffer();
-
- static void tune();
-
-protected:
- FFTImpl *d;
- static int m_method;
-};
-
-}
-
-#endif
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "HighFrequencyAudioCurve.h"
-
-namespace RubberBand
-{
-
-HighFrequencyAudioCurve::HighFrequencyAudioCurve(size_t sampleRate, size_t windowSize) :
- AudioCurve(sampleRate, windowSize)
-{
-}
-
-HighFrequencyAudioCurve::~HighFrequencyAudioCurve()
-{
-}
-
-void
-HighFrequencyAudioCurve::reset()
-{
-}
-
-void
-HighFrequencyAudioCurve::setWindowSize(size_t newSize)
-{
- m_windowSize = newSize;
-}
-
-float
-HighFrequencyAudioCurve::process(float *mag, size_t increment)
-{
- float result = 0.0;
-
- for (size_t n = 0; n <= m_windowSize / 2; ++n) {
- result += mag[n] * n;
- }
-
- return result;
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _HIGHFREQUENCY_AUDIO_CURVE_H_
-#define _HIGHFREQUENCY_AUDIO_CURVE_H_
-
-#include "AudioCurve.h"
-#include "Window.h"
-
-namespace RubberBand
-{
-
-class HighFrequencyAudioCurve : public AudioCurve
-{
-public:
- HighFrequencyAudioCurve(size_t sampleRate, size_t windowSize);
-
- virtual ~HighFrequencyAudioCurve();
-
- virtual void setWindowSize(size_t newSize);
-
- virtual float process(float *mag, size_t increment);
- virtual void reset();
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "PercussiveAudioCurve.h"
-
-#include <cmath>
-
-namespace RubberBand
-{
-
-PercussiveAudioCurve::PercussiveAudioCurve(size_t sampleRate, size_t windowSize) :
- AudioCurve(sampleRate, windowSize)
-{
- m_prevMag = new double[m_windowSize/2 + 1];
-
- for (size_t i = 0; i <= m_windowSize/2; ++i) {
- m_prevMag[i] = 0.f;
- }
-}
-
-PercussiveAudioCurve::~PercussiveAudioCurve()
-{
- delete[] m_prevMag;
-}
-
-void
-PercussiveAudioCurve::reset()
-{
- for (size_t i = 0; i <= m_windowSize/2; ++i) {
- m_prevMag[i] = 0;
- }
-}
-
-void
-PercussiveAudioCurve::setWindowSize(size_t newSize)
-{
- delete[] m_prevMag;
- m_windowSize = newSize;
-
- m_prevMag = new double[m_windowSize/2 + 1];
-
- reset();
-}
-
-float
-PercussiveAudioCurve::process(float *mag, size_t increment)
-{
- static float threshold = pow(10, 0.3);
- static float zeroThresh = pow(10, -16);
-
- size_t count = 0;
- size_t nonZeroCount = 0;
-
- for (size_t n = 1; n <= m_windowSize / 2; ++n) {
- float sqrmag = mag[n] * mag[n];
- bool above = ((sqrmag / m_prevMag[n]) >= threshold);
- if (above) ++count;
- if (sqrmag > zeroThresh) ++nonZeroCount;
- m_prevMag[n] = sqrmag;
- }
-
- if (nonZeroCount == 0) return 0;
- else return float(count) / float(nonZeroCount);
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _PERCUSSIVE_AUDIO_CURVE_H_
-#define _PERCUSSIVE_AUDIO_CURVE_H_
-
-#include "AudioCurve.h"
-
-namespace RubberBand
-{
-
-class PercussiveAudioCurve : public AudioCurve
-{
-public:
- PercussiveAudioCurve(size_t sampleRate, size_t windowSize);
-
- virtual ~PercussiveAudioCurve();
-
- virtual void setWindowSize(size_t newSize);
-
- virtual float process(float *mag, size_t increment);
- virtual void reset();
-
-protected:
- double *m_prevMag;
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "Resampler.h"
-
-#include <cstdlib>
-#include <cmath>
-
-#include <iostream>
-
-
-#include <samplerate.h>
-
-namespace RubberBand {
-
-class Resampler::D
-{
-public:
- D(Quality quality, size_t channels, size_t maxBufferSize);
- ~D();
-
- size_t resample(float **in, float **out,
- size_t incount, float ratio, bool final);
-
- void reset();
-
-protected:
- SRC_STATE *m_src;
- float *m_iin;
- float *m_iout;
- size_t m_channels;
- size_t m_iinsize;
- size_t m_ioutsize;
-};
-
-Resampler::D::D(Quality quality, size_t channels, size_t maxBufferSize) :
- m_src(0),
- m_iin(0),
- m_iout(0),
- m_channels(channels),
- m_iinsize(0),
- m_ioutsize(0)
-{
-// std::cerr << "Resampler::Resampler: using libsamplerate implementation"
-// << std::endl;
-
- int err = 0;
- m_src = src_new(quality == Best ? SRC_SINC_BEST_QUALITY :
- quality == Fastest ? SRC_LINEAR :
- SRC_SINC_FASTEST,
- channels, &err);
-
- //!!! check err, throw
-
- if (maxBufferSize > 0 && m_channels > 1) {
- //!!! alignment?
- m_iinsize = maxBufferSize * m_channels;
- m_ioutsize = maxBufferSize * m_channels * 2;
- m_iin = (float *)malloc(m_iinsize * sizeof(float));
- m_iout = (float *)malloc(m_ioutsize * sizeof(float));
- }
-}
-
-Resampler::D::~D()
-{
- src_delete(m_src);
- if (m_iinsize > 0) {
- free(m_iin);
- }
- if (m_ioutsize > 0) {
- free(m_iout);
- }
-}
-
-size_t
-Resampler::D::resample(float **in, float **out, size_t incount, float ratio,
- bool final)
-{
- SRC_DATA data;
-
- size_t outcount = lrintf(ceilf(incount * ratio));
-
- if (m_channels == 1) {
- data.data_in = *in;
- data.data_out = *out;
- } else {
- if (incount * m_channels > m_iinsize) {
- m_iinsize = incount * m_channels;
- m_iin = (float *)realloc(m_iin, m_iinsize * sizeof(float));
- }
- if (outcount * m_channels > m_ioutsize) {
- m_ioutsize = outcount * m_channels;
- m_iout = (float *)realloc(m_iout, m_ioutsize * sizeof(float));
- }
- for (size_t i = 0; i < incount; ++i) {
- for (size_t c = 0; c < m_channels; ++c) {
- m_iin[i * m_channels + c] = in[c][i];
- }
- }
- data.data_in = m_iin;
- data.data_out = m_iout;
- }
-
- data.input_frames = incount;
- data.output_frames = outcount;
- data.src_ratio = ratio;
- data.end_of_input = (final ? 1 : 0);
-
- int err = src_process(m_src, &data);
-
- //!!! check err, respond appropriately
-
- if (m_channels > 1) {
- for (int i = 0; i < data.output_frames_gen; ++i) {
- for (size_t c = 0; c < m_channels; ++c) {
- out[c][i] = m_iout[i * m_channels + c];
- }
- }
- }
-
- return data.output_frames_gen;
-}
-
-void
-Resampler::D::reset()
-{
- src_reset(m_src);
-}
-
-} // end namespace
-
-
-namespace RubberBand {
-
-Resampler::Resampler(Quality quality, size_t channels, size_t maxBufferSize)
-{
- m_d = new D(quality, channels, maxBufferSize);
-}
-
-Resampler::~Resampler()
-{
- delete m_d;
-}
-
-size_t
-Resampler::resample(float **in, float **out,
- size_t incount, float ratio, bool final)
-{
- return m_d->resample(in, out, incount, ratio, final);
-}
-
-void
-Resampler::reset()
-{
- m_d->reset();
-}
-
-}
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_RESAMPLER_H_
-#define _RUBBERBAND_RESAMPLER_H_
-
-#include <sys/types.h>
-
-namespace RubberBand {
-
-class Resampler
-{
-public:
- enum Quality { Best, FastestTolerable, Fastest };
-
- /**
- * Construct a resampler with the given quality level and channel
- * count. maxBufferSize gives a bound on the maximum incount size
- * that may be passed to the resample function before the
- * resampler needs to reallocate its internal buffers.
- */
- Resampler(Quality quality, size_t channels, size_t maxBufferSize = 0);
- ~Resampler();
-
- size_t resample(float **in, float **out,
- size_t incount, float ratio, bool final = false);
-
- void reset();
-
-protected:
- class D;
- D *m_d;
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_RINGBUFFER_H_
-#define _RUBBERBAND_RINGBUFFER_H_
-
-#include <sys/types.h>
-
-#ifndef _WIN32
-#include <sys/mman.h>
-#endif
-
-#include "Scavenger.h"
-
-//#define DEBUG_RINGBUFFER 1
-
-#ifdef _WIN32
-#define MLOCK(a,b) 1
-#define MUNLOCK(a,b) 1
-#else
-#define MLOCK(a,b) ::mlock(a,b)
-#define MUNLOCK(a,b) ::munlock(a,b)
-#endif
-
-#ifdef DEBUG_RINGBUFFER
-#include <iostream>
-#endif
-
-namespace RubberBand {
-
-/**
- * RingBuffer implements a lock-free ring buffer for one writer and N
- * readers, that is to be used to store a sample type T.
- */
-
-template <typename T, int N = 1>
-class RingBuffer
-{
-public:
- /**
- * Create a ring buffer with room to write n samples.
- *
- * Note that the internal storage size will actually be n+1
- * samples, as one element is unavailable for administrative
- * reasons. Since the ring buffer performs best if its size is a
- * power of two, this means n should ideally be some power of two
- * minus one.
- */
- RingBuffer(size_t n);
-
- virtual ~RingBuffer();
-
- /**
- * Return the total capacity of the ring buffer in samples.
- * (This is the argument n passed to the constructor.)
- */
- size_t getSize() const;
-
- /**
- * Resize the ring buffer. This also empties it; use resized()
- * below if you do not want this to happen. Actually swaps in a
- * new, larger buffer; the old buffer is scavenged after a seemly
- * delay. Should be called from the write thread.
- */
- void resize(size_t newSize);
-
- /**
- * Return a new ring buffer (allocated with "new" -- called must
- * delete when no longer needed) of the given size, containing the
- * same data as this one. If another thread reads from or writes
- * to this buffer during the call, the results may be incomplete
- * or inconsistent. If this buffer's data will not fit in the new
- * size, the contents are undefined.
- */
- RingBuffer<T, N> *resized(size_t newSize, int R = 0) const;
-
- /**
- * Lock the ring buffer into physical memory. Returns true
- * for success.
- */
- bool mlock();
-
- /**
- * Reset read and write pointers, thus emptying the buffer.
- * Should be called from the write thread.
- */
- void reset();
-
- /**
- * Return the amount of data available for reading by reader R, in
- * samples.
- */
- size_t getReadSpace(int R = 0) const;
-
- /**
- * Return the amount of space available for writing, in samples.
- */
- size_t getWriteSpace() const;
-
- /**
- * Read n samples from the buffer, for reader R. If fewer than n
- * are available, the remainder will be zeroed out. Returns the
- * number of samples actually read.
- */
- size_t read(T *destination, size_t n, int R = 0);
-
- /**
- * Read n samples from the buffer, for reader R, adding them to
- * the destination. If fewer than n are available, the remainder
- * will be left alone. Returns the number of samples actually
- * read.
- */
- size_t readAdding(T *destination, size_t n, int R = 0);
-
- /**
- * Read one sample from the buffer, for reader R. If no sample is
- * available, this will silently return zero. Calling this
- * repeatedly is obviously slower than calling read once, but it
- * may be good enough if you don't want to allocate a buffer to
- * read into.
- */
- T readOne(int R = 0);
-
- /**
- * Read n samples from the buffer, if available, for reader R,
- * without advancing the read pointer -- i.e. a subsequent read()
- * or skip() will be necessary to empty the buffer. If fewer than
- * n are available, the remainder will be zeroed out. Returns the
- * number of samples actually read.
- */
- size_t peek(T *destination, size_t n, int R = 0) const;
-
- /**
- * Read one sample from the buffer, if available, without
- * advancing the read pointer -- i.e. a subsequent read() or
- * skip() will be necessary to empty the buffer. Returns zero if
- * no sample was available.
- */
- T peekOne(int R = 0) const;
-
- /**
- * Pretend to read n samples from the buffer, for reader R,
- * without actually returning them (i.e. discard the next n
- * samples). Returns the number of samples actually available for
- * discarding.
- */
- size_t skip(size_t n, int R = 0);
-
- /**
- * Write n samples to the buffer. If insufficient space is
- * available, not all samples may actually be written. Returns
- * the number of samples actually written.
- */
- size_t write(const T *source, size_t n);
-
- /**
- * Write n zero-value samples to the buffer. If insufficient
- * space is available, not all zeros may actually be written.
- * Returns the number of zeroes actually written.
- */
- size_t zero(size_t n);
-
-protected:
- T *m_buffer;
- volatile size_t m_writer;
- volatile size_t m_readers[N];
- size_t m_size;
- bool m_mlocked;
-
- static Scavenger<ScavengerArrayWrapper<T> > m_scavenger;
-
-private:
- RingBuffer(const RingBuffer &); // not provided
- RingBuffer &operator=(const RingBuffer &); // not provided
-};
-
-template <typename T, int N>
-Scavenger<ScavengerArrayWrapper<T> > RingBuffer<T, N>::m_scavenger;
-
-template <typename T, int N>
-RingBuffer<T, N>::RingBuffer(size_t n) :
- m_buffer(new T[n + 1]),
- m_writer(0),
- m_size(n + 1),
- m_mlocked(false)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::RingBuffer(" << n << ")" << std::endl;
-#endif
-
- for (int i = 0; i < N; ++i) m_readers[i] = 0;
-
- m_scavenger.scavenge();
-}
-
-template <typename T, int N>
-RingBuffer<T, N>::~RingBuffer()
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::~RingBuffer" << std::endl;
-#endif
-
- if (m_mlocked) {
- MUNLOCK((void *)m_buffer, m_size * sizeof(T));
- }
- delete[] m_buffer;
-
- m_scavenger.scavenge();
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::getSize() const
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::getSize(): " << m_size-1 << std::endl;
-#endif
-
- return m_size - 1;
-}
-
-template <typename T, int N>
-void
-RingBuffer<T, N>::resize(size_t newSize)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::resize(" << newSize << ")" << std::endl;
-#endif
-
- m_scavenger.scavenge();
-
- if (m_mlocked) {
- MUNLOCK((void *)m_buffer, m_size * sizeof(T));
- }
-
- m_scavenger.claim(new ScavengerArrayWrapper<T>(m_buffer));
-
- reset();
- m_buffer = new T[newSize + 1];
- m_size = newSize + 1;
-
- if (m_mlocked) {
- if (MLOCK((void *)m_buffer, m_size * sizeof(T))) {
- m_mlocked = false;
- }
- }
-}
-
-template <typename T, int N>
-RingBuffer<T, N> *
-RingBuffer<T, N>::resized(size_t newSize, int R) const
-{
- RingBuffer<T, N> *newBuffer = new RingBuffer<T, N>(newSize);
-
- size_t w = m_writer;
- size_t r = m_readers[R];
-
- while (r != w) {
- T value = m_buffer[r];
- newBuffer->write(&value, 1);
- if (++r == m_size) r = 0;
- }
-
- return newBuffer;
-}
-
-template <typename T, int N>
-bool
-RingBuffer<T, N>::mlock()
-{
- if (MLOCK((void *)m_buffer, m_size * sizeof(T))) return false;
- m_mlocked = true;
- return true;
-}
-
-template <typename T, int N>
-void
-RingBuffer<T, N>::reset()
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::reset" << std::endl;
-#endif
-
- m_writer = 0;
- for (int i = 0; i < N; ++i) m_readers[i] = 0;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::getReadSpace(int R) const
-{
- size_t writer = m_writer;
- size_t reader = m_readers[R];
- size_t space;
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::getReadSpace(" << R << "): reader " << reader << ", writer " << writer << std::endl;
-#endif
-
- if (writer > reader) space = writer - reader;
- else if (writer < reader) space = (writer + m_size) - reader;
- else space = 0;
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::getReadSpace(" << R << "): " << space << std::endl;
-#endif
-
- return space;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::getWriteSpace() const
-{
- size_t space = 0;
- for (int i = 0; i < N; ++i) {
- size_t writer = m_writer;
- size_t reader = m_readers[i];
- size_t here = (reader + m_size - writer - 1);
- if (here >= m_size) here -= m_size;
- if (i == 0 || here < space) space = here;
- }
-
-#ifdef DEBUG_RINGBUFFER
- size_t rs(getReadSpace()), rp(m_readers[0]);
-
- std::cerr << "RingBuffer: write space " << space << ", read space "
- << rs << ", total " << (space + rs) << ", m_size " << m_size << std::endl;
- std::cerr << "RingBuffer: reader " << rp << ", writer " << m_writer << std::endl;
-#endif
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::getWriteSpace(): " << space << std::endl;
-#endif
-
- return space;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::read(T *destination, size_t n, int R)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::read(dest, " << n << ", " << R << ")" << std::endl;
-#endif
-
- size_t available = getReadSpace(R);
- if (n > available) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: Only " << available << " samples available"
- << std::endl;
-#endif
- for (size_t i = available; i < n; ++i) {
- destination[i] = 0;
- }
- n = available;
- }
- if (n == 0) return n;
-
- size_t reader = m_readers[R];
- size_t here = m_size - reader;
-
- if (here >= n) {
- for (size_t i = 0; i < n; ++i) {
- destination[i] = (m_buffer + reader)[i];
- }
- } else {
- for (size_t i = 0; i < here; ++i) {
- destination[i] = (m_buffer + reader)[i];
- }
- for (size_t i = 0; i < (n - here); ++i) {
- destination[i + here] = m_buffer[i];
- }
- }
-
- reader += n;
- while (reader >= m_size) reader -= m_size;
- m_readers[R] = reader;
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::read: read " << n << ", reader now " << m_readers[R] << std::endl;
-#endif
-
- return n;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::readAdding(T *destination, size_t n, int R)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::readAdding(dest, " << n << ", " << R << ")" << std::endl;
-#endif
-
- size_t available = getReadSpace(R);
- if (n > available) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: Only " << available << " samples available"
- << std::endl;
-#endif
- n = available;
- }
- if (n == 0) return n;
-
- size_t reader = m_readers[R];
- size_t here = m_size - reader;
-
- if (here >= n) {
- for (size_t i = 0; i < n; ++i) {
- destination[i] += (m_buffer + reader)[i];
- }
- } else {
- for (size_t i = 0; i < here; ++i) {
- destination[i] += (m_buffer + reader)[i];
- }
- for (size_t i = 0; i < (n - here); ++i) {
- destination[i + here] += m_buffer[i];
- }
- }
-
- reader += n;
- while (reader >= m_size) reader -= m_size;
- m_readers[R] = reader;
- return n;
-}
-
-template <typename T, int N>
-T
-RingBuffer<T, N>::readOne(int R)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::readOne(" << R << ")" << std::endl;
-#endif
-
- if (m_writer == m_readers[R]) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: No sample available"
- << std::endl;
-#endif
- return 0;
- }
- size_t reader = m_readers[R];
- T value = m_buffer[reader];
- if (++reader == m_size) reader = 0;
- m_readers[R] = reader;
- return value;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::peek(T *destination, size_t n, int R) const
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::peek(dest, " << n << ", " << R << ")" << std::endl;
-#endif
-
- size_t available = getReadSpace(R);
- if (n > available) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: Only " << available << " samples available"
- << std::endl;
-#endif
- memset(destination + available, 0, (n - available) * sizeof(T));
- n = available;
- }
- if (n == 0) return n;
-
- size_t reader = m_readers[R];
- size_t here = m_size - reader;
-
- if (here >= n) {
- for (size_t i = 0; i < n; ++i) {
- destination[i] = (m_buffer + reader)[i];
- }
- } else {
- for (size_t i = 0; i < here; ++i) {
- destination[i] = (m_buffer + reader)[i];
- }
- for (size_t i = 0; i < (n - here); ++i) {
- destination[i + here] = m_buffer[i];
- }
- }
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::peek: read " << n << std::endl;
-#endif
-
- return n;
-}
-
-template <typename T, int N>
-T
-RingBuffer<T, N>::peekOne(int R) const
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::peek(" << R << ")" << std::endl;
-#endif
-
- if (m_writer == m_readers[R]) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: No sample available"
- << std::endl;
-#endif
- return 0;
- }
- T value = m_buffer[m_readers[R]];
- return value;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::skip(size_t n, int R)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::skip(" << n << ", " << R << ")" << std::endl;
-#endif
-
- size_t available = getReadSpace(R);
- if (n > available) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: Only " << available << " samples available"
- << std::endl;
-#endif
- n = available;
- }
- if (n == 0) return n;
-
- size_t reader = m_readers[R];
- reader += n;
- while (reader >= m_size) reader -= m_size;
- m_readers[R] = reader;
- return n;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::write(const T *source, size_t n)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::write(" << n << ")" << std::endl;
-#endif
-
- size_t available = getWriteSpace();
- if (n > available) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: Only room for " << available << " samples"
- << std::endl;
-#endif
- n = available;
- }
- if (n == 0) return n;
-
- size_t writer = m_writer;
- size_t here = m_size - writer;
- if (here >= n) {
- for (size_t i = 0; i < n; ++i) {
- (m_buffer + writer)[i] = source[i];
- }
- } else {
- for (size_t i = 0; i < here; ++i) {
- (m_buffer + writer)[i] = source[i];
- }
- for (size_t i = 0; i < (n - here); ++i) {
- m_buffer[i] = (source + here)[i];
- }
- }
-
- writer += n;
- while (writer >= m_size) writer -= m_size;
- m_writer = writer;
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::write: wrote " << n << ", writer now " << m_writer << std::endl;
-#endif
-
- return n;
-}
-
-template <typename T, int N>
-size_t
-RingBuffer<T, N>::zero(size_t n)
-{
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "RingBuffer<T," << N << ">[" << this << "]::zero(" << n << ")" << std::endl;
-#endif
-
- size_t available = getWriteSpace();
- if (n > available) {
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "WARNING: Only room for " << available << " samples"
- << std::endl;
-#endif
- n = available;
- }
- if (n == 0) return n;
-
- size_t writer = m_writer;
- size_t here = m_size - writer;
- if (here >= n) {
- for (size_t i = 0; i < n; ++i) {
- (m_buffer + writer)[i] = 0;
- }
- } else {
- for (size_t i = 0; i < here; ++i) {
- (m_buffer + writer)[i] = 0;
- }
- for (size_t i = 0; i < (n - here); ++i) {
- m_buffer[i] = 0;
- }
- }
-
- writer += n;
- while (writer >= m_size) writer -= m_size;
- m_writer = writer;
-
-#ifdef DEBUG_RINGBUFFER
- std::cerr << "writer -> " << m_writer << std::endl;
-#endif
-
- return n;
-}
-
-}
-
-#endif // _RINGBUFFER_H_
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "StretcherImpl.h"
-
-namespace RubberBand {
-
-
-RubberBandStretcher::RubberBandStretcher(size_t sampleRate,
- size_t channels,
- Options options,
- double initialTimeRatio,
- double initialPitchScale) :
- TimeStretcher(sampleRate, channels),
- m_d(new Impl(this, sampleRate, channels, options,
- initialTimeRatio, initialPitchScale))
-{
-}
-
-RubberBandStretcher::~RubberBandStretcher()
-{
- delete m_d;
-}
-
-void
-RubberBandStretcher::reset()
-{
- m_d->reset();
-}
-
-void
-RubberBandStretcher::setTimeRatio(double ratio)
-{
- m_d->setTimeRatio(ratio);
-}
-
-void
-RubberBandStretcher::setPitchScale(double scale)
-{
- m_d->setPitchScale(scale);
-}
-
-double
-RubberBandStretcher::getTimeRatio() const
-{
- return m_d->getTimeRatio();
-}
-
-double
-RubberBandStretcher::getPitchScale() const
-{
- return m_d->getPitchScale();
-}
-
-size_t
-RubberBandStretcher::getLatency() const
-{
- return m_d->getLatency();
-}
-
-void
-RubberBandStretcher::setTransientsOption(Options options)
-{
- m_d->setTransientsOption(options);
-}
-
-void
-RubberBandStretcher::setPhaseOption(Options options)
-{
- m_d->setPhaseOption(options);
-}
-
-void
-RubberBandStretcher::setExpectedInputDuration(size_t samples)
-{
- m_d->setExpectedInputDuration(samples);
-}
-
-void
-RubberBandStretcher::setMaxProcessSize(size_t samples)
-{
- m_d->setMaxProcessSize(samples);
-}
-
-size_t
-RubberBandStretcher::getSamplesRequired() const
-{
- return m_d->getSamplesRequired();
-}
-
-void
-RubberBandStretcher::study(const float *const *input, size_t samples,
- bool final)
-{
- m_d->study(input, samples, final);
-}
-
-void
-RubberBandStretcher::process(const float *const *input, size_t samples,
- bool final)
-{
- m_d->process(input, samples, final);
-}
-
-int
-RubberBandStretcher::available() const
-{
- return m_d->available();
-}
-
-size_t
-RubberBandStretcher::retrieve(float *const *output, size_t samples) const
-{
- return m_d->retrieve(output, samples);
-}
-
-float
-RubberBandStretcher::getFrequencyCutoff(int n) const
-{
- return m_d->getFrequencyCutoff(n);
-}
-
-void
-RubberBandStretcher::setFrequencyCutoff(int n, float f)
-{
- m_d->setFrequencyCutoff(n, f);
-}
-
-size_t
-RubberBandStretcher::getInputIncrement() const
-{
- return m_d->getInputIncrement();
-}
-
-std::vector<int>
-RubberBandStretcher::getOutputIncrements() const
-{
- return m_d->getOutputIncrements();
-}
-
-std::vector<float>
-RubberBandStretcher::getPhaseResetCurve() const
-{
- return m_d->getPhaseResetCurve();
-}
-
-std::vector<int>
-RubberBandStretcher::getExactTimePoints() const
-{
- return m_d->getExactTimePoints();
-}
-
-size_t
-RubberBandStretcher::getChannelCount() const
-{
- return m_d->getChannelCount();
-}
-
-void
-RubberBandStretcher::calculateStretch()
-{
- m_d->calculateStretch();
-}
-
-void
-RubberBandStretcher::setDebugLevel(int level)
-{
- m_d->setDebugLevel(level);
-}
-
-void
-RubberBandStretcher::setDefaultDebugLevel(int level)
-{
- Impl::setDefaultDebugLevel(level);
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_SCAVENGER_H_
-#define _RUBBERBAND_SCAVENGER_H_
-
-#include <vector>
-#include <list>
-#include <sys/time.h>
-#include <iostream>
-
-#include "Thread.h"
-#include "sysutils.h"
-
-namespace RubberBand {
-
-/**
- * A very simple class that facilitates running things like plugins
- * without locking, by collecting unwanted objects and deleting them
- * after a delay so as to be sure nobody's in the middle of using
- * them. Requires scavenge() to be called regularly from a non-RT
- * thread.
- *
- * This is currently not at all suitable for large numbers of objects
- * -- it's just a quick hack for use with things like plugins.
- */
-
-template <typename T>
-class Scavenger
-{
-public:
- Scavenger(int sec = 2, int defaultObjectListSize = 200);
- ~Scavenger();
-
- /**
- * Call from an RT thread etc., to pass ownership of t to us.
- * Only one thread should be calling this on any given scavenger.
- */
- void claim(T *t);
-
- /**
- * Call from a non-RT thread.
- * Only one thread should be calling this on any given scavenger.
- */
- void scavenge(bool clearNow = false);
-
-protected:
- typedef std::pair<T *, int> ObjectTimePair;
- typedef std::vector<ObjectTimePair> ObjectTimeList;
- ObjectTimeList m_objects;
- int m_sec;
-
- typedef std::list<T *> ObjectList;
- ObjectList m_excess;
- int m_lastExcess;
- Mutex m_excessMutex;
- void pushExcess(T *);
- void clearExcess(int);
-
- unsigned int m_claimed;
- unsigned int m_scavenged;
-};
-
-/**
- * A wrapper to permit arrays to be scavenged.
- */
-
-template <typename T>
-class ScavengerArrayWrapper
-{
-public:
- ScavengerArrayWrapper(T *array) : m_array(array) { }
- ~ScavengerArrayWrapper() { delete[] m_array; }
-
-private:
- T *m_array;
-};
-
-
-template <typename T>
-Scavenger<T>::Scavenger(int sec, int defaultObjectListSize) :
- m_objects(ObjectTimeList(defaultObjectListSize)),
- m_sec(sec),
- m_claimed(0),
- m_scavenged(0)
-{
-}
-
-template <typename T>
-Scavenger<T>::~Scavenger()
-{
- if (m_scavenged < m_claimed) {
- for (size_t i = 0; i < m_objects.size(); ++i) {
- ObjectTimePair &pair = m_objects[i];
- if (pair.first != 0) {
- T *ot = pair.first;
- pair.first = 0;
- delete ot;
- ++m_scavenged;
- }
- }
- }
-
- clearExcess(0);
-}
-
-template <typename T>
-void
-Scavenger<T>::claim(T *t)
-{
-// std::cerr << "Scavenger::claim(" << t << ")" << std::endl;
-
- struct timeval tv;
- (void)gettimeofday(&tv, 0);
- int sec = tv.tv_sec;
-
- for (size_t i = 0; i < m_objects.size(); ++i) {
- ObjectTimePair &pair = m_objects[i];
- if (pair.first == 0) {
- pair.second = sec;
- pair.first = t;
- ++m_claimed;
- return;
- }
- }
-
- std::cerr << "WARNING: Scavenger::claim(" << t << "): run out of slots, "
- << "using non-RT-safe method" << std::endl;
- pushExcess(t);
-}
-
-template <typename T>
-void
-Scavenger<T>::scavenge(bool clearNow)
-{
-// std::cerr << "Scavenger::scavenge: scavenged " << m_scavenged << ", claimed " << m_claimed << std::endl;
-
- if (m_scavenged >= m_claimed) return;
-
- struct timeval tv;
- (void)gettimeofday(&tv, 0);
- int sec = tv.tv_sec;
-
- for (size_t i = 0; i < m_objects.size(); ++i) {
- ObjectTimePair &pair = m_objects[i];
- if (clearNow ||
- (pair.first != 0 && pair.second + m_sec < sec)) {
- T *ot = pair.first;
- pair.first = 0;
- delete ot;
- ++m_scavenged;
- }
- }
-
- if (sec > m_lastExcess + m_sec) {
- clearExcess(sec);
- }
-}
-
-template <typename T>
-void
-Scavenger<T>::pushExcess(T *t)
-{
- m_excessMutex.lock();
- m_excess.push_back(t);
- struct timeval tv;
- (void)gettimeofday(&tv, 0);
- m_lastExcess = tv.tv_sec;
- m_excessMutex.unlock();
-}
-
-template <typename T>
-void
-Scavenger<T>::clearExcess(int sec)
-{
- m_excessMutex.lock();
- for (typename ObjectList::iterator i = m_excess.begin();
- i != m_excess.end(); ++i) {
- delete *i;
- }
- m_excess.clear();
- m_lastExcess = sec;
- m_excessMutex.unlock();
-}
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "SpectralDifferenceAudioCurve.h"
-
-namespace RubberBand
-{
-
-SpectralDifferenceAudioCurve::SpectralDifferenceAudioCurve(size_t sampleRate, size_t windowSize) :
- AudioCurve(sampleRate, windowSize)
-{
- m_prevMag = new double[m_windowSize/2 + 1];
-
- for (size_t i = 0; i <= m_windowSize/2; ++i) {
- m_prevMag[i] = 0.f;
- }
-}
-
-SpectralDifferenceAudioCurve::~SpectralDifferenceAudioCurve()
-{
- delete[] m_prevMag;
-}
-
-void
-SpectralDifferenceAudioCurve::reset()
-{
- for (size_t i = 0; i <= m_windowSize/2; ++i) {
- m_prevMag[i] = 0;
- }
-}
-
-void
-SpectralDifferenceAudioCurve::setWindowSize(size_t newSize)
-{
- m_windowSize = newSize;
-}
-
-float
-SpectralDifferenceAudioCurve::process(float *mag, size_t increment)
-{
- float result = 0.0;
-
- for (size_t n = 0; n <= m_windowSize / 2; ++n) {
- result += sqrtf(fabsf((mag[n] * mag[n]) -
- (m_prevMag[n] * m_prevMag[n])));
- m_prevMag[n] = mag[n];
- }
-
- return result;
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _SPECTRALDIFFERENCE_AUDIO_CURVE_H_
-#define _SPECTRALDIFFERENCE_AUDIO_CURVE_H_
-
-#include "AudioCurve.h"
-#include "Window.h"
-
-namespace RubberBand
-{
-
-class SpectralDifferenceAudioCurve : public AudioCurve
-{
-public:
- SpectralDifferenceAudioCurve(size_t sampleRate, size_t windowSize);
-
- virtual ~SpectralDifferenceAudioCurve();
-
- virtual void setWindowSize(size_t newSize);
-
- virtual float process(float *mag, size_t increment);
- virtual void reset();
-
-protected:
- double *m_prevMag;
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "StretchCalculator.h"
-
-#include <math.h>
-#include <iostream>
-#include <deque>
-#include <set>
-#include <cassert>
-
-namespace RubberBand
-{
-
-StretchCalculator::StretchCalculator(size_t sampleRate,
- size_t inputIncrement,
- bool useHardPeaks) :
- m_sampleRate(sampleRate),
- m_increment(inputIncrement),
- m_prevDf(0),
- m_divergence(0),
- m_recovery(0),
- m_prevRatio(1.0),
- m_transientAmnesty(0),
- m_useHardPeaks(useHardPeaks)
-{
-// std::cerr << "StretchCalculator::StretchCalculator: useHardPeaks = " << useHardPeaks << std::endl;
-}
-
-StretchCalculator::~StretchCalculator()
-{
-}
-
-std::vector<int>
-StretchCalculator::calculate(double ratio, size_t inputDuration,
- const std::vector<float> &phaseResetDf,
- const std::vector<float> &stretchDf)
-{
- assert(phaseResetDf.size() == stretchDf.size());
-
- m_lastPeaks = findPeaks(phaseResetDf);
- std::vector<Peak> &peaks = m_lastPeaks;
- size_t totalCount = phaseResetDf.size();
-
- std::vector<int> increments;
-
- size_t outputDuration = lrint(inputDuration * ratio);
-
- if (m_debugLevel > 0) {
- std::cerr << "StretchCalculator::calculate(): inputDuration " << inputDuration << ", ratio " << ratio << ", outputDuration " << outputDuration;
- }
-
- outputDuration = lrint((phaseResetDf.size() * m_increment) * ratio);
-
- if (m_debugLevel > 0) {
- std::cerr << " (rounded up to " << outputDuration << ")";
- std::cerr << ", df size " << phaseResetDf.size() << std::endl;
- }
-
- std::vector<size_t> fixedAudioChunks;
- for (size_t i = 0; i < peaks.size(); ++i) {
- fixedAudioChunks.push_back
- (lrint((double(peaks[i].chunk) * outputDuration) / totalCount));
- }
-
- if (m_debugLevel > 1) {
- std::cerr << "have " << peaks.size() << " fixed positions" << std::endl;
- }
-
- size_t totalInput = 0, totalOutput = 0;
-
- // For each region between two consecutive time sync points, we
- // want to take the number of output chunks to be allocated and
- // the detection function values within the range, and produce a
- // series of increments that sum to the number of output chunks,
- // such that each increment is displaced from the input increment
- // by an amount inversely proportional to the magnitude of the
- // stretch detection function at that input step.
-
- size_t regionTotalChunks = 0;
-
- for (size_t i = 0; i <= peaks.size(); ++i) {
-
- size_t regionStart, regionStartChunk, regionEnd, regionEndChunk;
- bool phaseReset = false;
-
- if (i == 0) {
- regionStartChunk = 0;
- regionStart = 0;
- } else {
- regionStartChunk = peaks[i-1].chunk;
- regionStart = fixedAudioChunks[i-1];
- phaseReset = peaks[i-1].hard;
- }
-
- if (i == peaks.size()) {
- regionEndChunk = totalCount;
- regionEnd = outputDuration;
- } else {
- regionEndChunk = peaks[i].chunk;
- regionEnd = fixedAudioChunks[i];
- }
-
- size_t regionDuration = regionEnd - regionStart;
- regionTotalChunks += regionDuration;
-
- std::vector<float> dfRegion;
-
- for (size_t j = regionStartChunk; j != regionEndChunk; ++j) {
- dfRegion.push_back(stretchDf[j]);
- }
-
- if (m_debugLevel > 1) {
- std::cerr << "distributeRegion from " << regionStartChunk << " to " << regionEndChunk << " (chunks " << regionStart << " to " << regionEnd << ")" << std::endl;
- }
-
- dfRegion = smoothDF(dfRegion);
-
- std::vector<int> regionIncrements = distributeRegion
- (dfRegion, regionDuration, ratio, phaseReset);
-
- size_t totalForRegion = 0;
-
- for (size_t j = 0; j < regionIncrements.size(); ++j) {
-
- int incr = regionIncrements[j];
-
- if (j == 0 && phaseReset) increments.push_back(-incr);
- else increments.push_back(incr);
-
- if (incr > 0) totalForRegion += incr;
- else totalForRegion += -incr;
-
- totalInput += m_increment;
- }
-
- if (totalForRegion != regionDuration) {
- std::cerr << "*** WARNING: distributeRegion returned wrong duration " << totalForRegion << ", expected " << regionDuration << std::endl;
- }
-
- totalOutput += totalForRegion;
- }
-
- if (m_debugLevel > 0) {
- std::cerr << "total input increment = " << totalInput << " (= " << totalInput / m_increment << " chunks), output = " << totalOutput << ", ratio = " << double(totalOutput)/double(totalInput) << ", ideal output " << size_t(ceil(totalInput * ratio)) << std::endl;
- std::cerr << "(region total = " << regionTotalChunks << ")" << std::endl;
- }
-
- return increments;
-}
-
-int
-StretchCalculator::calculateSingle(double ratio,
- size_t inputDurationSoFar,
- float df)
-{
- bool isTransient = false;
-
- // We want to ensure, as close as possible, that the phase reset
- // points appear at _exactly_ the right audio frame numbers.
-
- // In principle, the threshold depends on chunk size: larger chunk
- // sizes need higher thresholds. Since chunk size depends on
- // ratio, I suppose we could in theory calculate the threshold
- // from the ratio directly. For the moment we're happy if it
- // works well in common situations.
-
- float transientThreshold = 0.35;
- if (ratio > 1) transientThreshold = 0.25;
-
- if (m_useHardPeaks && df > m_prevDf * 1.1 && df > transientThreshold) {
- isTransient = true;
- }
-
- if (m_debugLevel > 2) {
- std::cerr << "df = " << df << ", prevDf = " << m_prevDf
- << ", thresh = " << transientThreshold << std::endl;
- }
-
- m_prevDf = df;
-
- if (isTransient && m_transientAmnesty == 0) {
- if (m_debugLevel > 1) {
- std::cerr << "StretchCalculator::calculateSingle: transient found at "
- << inputDurationSoFar << std::endl;
- }
- m_divergence += m_increment - (m_increment * ratio);
-
- // as in offline mode, 0.05 sec approx min between transients
- m_transientAmnesty =
- lrint(ceil(double(m_sampleRate) / (20 * double(m_increment))));
-
- m_recovery = m_divergence / ((m_sampleRate / 10.0) / m_increment);
- return -m_increment;
- }
-
- if (m_prevRatio != ratio) {
- m_recovery = m_divergence / ((m_sampleRate / 10.0) / m_increment);
- m_prevRatio = ratio;
- }
-
- if (m_transientAmnesty > 0) --m_transientAmnesty;
-
- int incr = lrint(m_increment * ratio - m_recovery);
- if (m_debugLevel > 2 || (m_debugLevel > 1 && m_divergence != 0)) {
- std::cerr << "divergence = " << m_divergence << ", recovery = " << m_recovery << ", incr = " << incr << ", ";
- }
- if (incr < lrint((m_increment * ratio) / 2)) {
- incr = lrint((m_increment * ratio) / 2);
- } else if (incr > lrint(m_increment * ratio * 2)) {
- incr = lrint(m_increment * ratio * 2);
- }
-
- double divdiff = (m_increment * ratio) - incr;
-
- if (m_debugLevel > 2 || (m_debugLevel > 1 && m_divergence != 0)) {
- std::cerr << "divdiff = " << divdiff << std::endl;
- }
-
- double prevDivergence = m_divergence;
- m_divergence -= divdiff;
- if ((prevDivergence < 0 && m_divergence > 0) ||
- (prevDivergence > 0 && m_divergence < 0)) {
- m_recovery = m_divergence / ((m_sampleRate / 10.0) / m_increment);
- }
-
- return incr;
-}
-
-void
-StretchCalculator::reset()
-{
- m_prevDf = 0;
- m_divergence = 0;
-}
-
-std::vector<StretchCalculator::Peak>
-StretchCalculator::findPeaks(const std::vector<float> &rawDf)
-{
- std::vector<float> df = smoothDF(rawDf);
-
- // We distinguish between "soft" and "hard" peaks. A soft peak is
- // simply the result of peak-picking on the smoothed onset
- // detection function, and it represents any (strong-ish) onset.
- // We aim to ensure always that soft peaks are placed at the
- // correct position in time. A hard peak is where there is a very
- // rapid rise in detection function, and it presumably represents
- // a more broadband, noisy transient. For these we perform a
- // phase reset (if in the appropriate mode), and we locate the
- // reset at the first point where we notice enough of a rapid
- // rise, rather than necessarily at the peak itself, in order to
- // preserve the shape of the transient.
-
- std::set<size_t> hardPeakCandidates;
- std::set<size_t> softPeakCandidates;
-
- if (m_useHardPeaks) {
-
- // 0.05 sec approx min between hard peaks
- size_t hardPeakAmnesty = lrint(ceil(double(m_sampleRate) /
- (20 * double(m_increment))));
- size_t prevHardPeak = 0;
-
- if (m_debugLevel > 1) {
- std::cerr << "hardPeakAmnesty = " << hardPeakAmnesty << std::endl;
- }
-
- for (size_t i = 1; i + 1 < df.size(); ++i) {
-
- if (df[i] < 0.1) continue;
- if (df[i] <= df[i-1] * 1.1) continue;
- if (df[i] < 0.22) continue;
-
- if (!hardPeakCandidates.empty() &&
- i < prevHardPeak + hardPeakAmnesty) {
- continue;
- }
-
- bool hard = (df[i] > 0.4);
-
- if (hard && (m_debugLevel > 1)) {
- std::cerr << "hard peak at " << i << ": " << df[i]
- << " > absolute " << 0.4
- << std::endl;
- }
-
- if (!hard) {
- hard = (df[i] > df[i-1] * 1.4);
-
- if (hard && (m_debugLevel > 1)) {
- std::cerr << "hard peak at " << i << ": " << df[i]
- << " > prev " << df[i-1] << " * 1.4"
- << std::endl;
- }
- }
-
- if (!hard && i > 1) {
- hard = (df[i] > df[i-1] * 1.2 &&
- df[i-1] > df[i-2] * 1.2);
-
- if (hard && (m_debugLevel > 1)) {
- std::cerr << "hard peak at " << i << ": " << df[i]
- << " > prev " << df[i-1] << " * 1.2 and "
- << df[i-1] << " > prev " << df[i-2] << " * 1.2"
- << std::endl;
- }
- }
-
- if (!hard && i > 2) {
- // have already established that df[i] > df[i-1] * 1.1
- hard = (df[i] > 0.3 &&
- df[i-1] > df[i-2] * 1.1 &&
- df[i-2] > df[i-3] * 1.1);
-
- if (hard && (m_debugLevel > 1)) {
- std::cerr << "hard peak at " << i << ": " << df[i]
- << " > prev " << df[i-1] << " * 1.1 and "
- << df[i-1] << " > prev " << df[i-2] << " * 1.1 and "
- << df[i-2] << " > prev " << df[i-3] << " * 1.1"
- << std::endl;
- }
- }
-
- if (!hard) continue;
-
-// (df[i+1] > df[i] && df[i+1] > df[i-1] * 1.8) ||
-// df[i] > 0.4) {
-
- size_t peakLocation = i;
-
- if (i + 1 < rawDf.size() &&
- rawDf[i + 1] > rawDf[i] * 1.4) {
-
- ++peakLocation;
-
- if (m_debugLevel > 1) {
- std::cerr << "pushing hard peak forward to " << peakLocation << ": " << df[peakLocation] << " > " << df[peakLocation-1] << " * " << 1.4 << std::endl;
- }
- }
-
- hardPeakCandidates.insert(peakLocation);
- prevHardPeak = peakLocation;
- }
- }
-
- size_t medianmaxsize = lrint(ceil(double(m_sampleRate) /
- double(m_increment))); // 1 sec ish
-
- if (m_debugLevel > 1) {
- std::cerr << "mediansize = " << medianmaxsize << std::endl;
- }
- if (medianmaxsize < 7) {
- medianmaxsize = 7;
- if (m_debugLevel > 1) {
- std::cerr << "adjusted mediansize = " << medianmaxsize << std::endl;
- }
- }
-
- int minspacing = lrint(ceil(double(m_sampleRate) /
- (20 * double(m_increment)))); // 0.05 sec ish
-
- std::deque<float> medianwin;
- std::vector<float> sorted;
- int softPeakAmnesty = 0;
-
- for (size_t i = 0; i < medianmaxsize/2; ++i) {
- medianwin.push_back(0);
- }
- for (size_t i = 0; i < medianmaxsize/2 && i < df.size(); ++i) {
- medianwin.push_back(df[i]);
- }
-
- size_t lastSoftPeak = 0;
-
- for (size_t i = 0; i < df.size(); ++i) {
-
- size_t mediansize = medianmaxsize;
-
- if (medianwin.size() < mediansize) {
- mediansize = medianwin.size();
- }
-
- size_t middle = medianmaxsize / 2;
- if (middle >= mediansize) middle = mediansize-1;
-
- size_t nextDf = i + mediansize - middle;
-
- if (mediansize < 2) {
- if (mediansize > medianmaxsize) { // absurd, but never mind that
- medianwin.pop_front();
- }
- if (nextDf < df.size()) {
- medianwin.push_back(df[nextDf]);
- } else {
- medianwin.push_back(0);
- }
- continue;
- }
-
- if (m_debugLevel > 2) {
-// std::cerr << "have " << mediansize << " in median buffer" << std::endl;
- }
-
- sorted.clear();
- for (size_t j = 0; j < mediansize; ++j) {
- sorted.push_back(medianwin[j]);
- }
- std::sort(sorted.begin(), sorted.end());
-
- size_t n = 90; // percentile above which we pick peaks
- size_t index = (sorted.size() * n) / 100;
- if (index >= sorted.size()) index = sorted.size()-1;
- if (index == sorted.size()-1 && index > 0) --index;
- float thresh = sorted[index];
-
-// if (m_debugLevel > 2) {
-// std::cerr << "medianwin[" << middle << "] = " << medianwin[middle] << ", thresh = " << thresh << std::endl;
-// if (medianwin[middle] == 0.f) {
-// std::cerr << "contents: ";
-// for (size_t j = 0; j < medianwin.size(); ++j) {
-// std::cerr << medianwin[j] << " ";
-// }
-// std::cerr << std::endl;
-// }
-// }
-
- if (medianwin[middle] > thresh &&
- medianwin[middle] > medianwin[middle-1] &&
- medianwin[middle] > medianwin[middle+1] &&
- softPeakAmnesty == 0) {
-
- size_t maxindex = middle;
- float maxval = medianwin[middle];
-
- for (size_t j = middle+1; j < mediansize; ++j) {
- if (medianwin[j] > maxval) {
- maxval = medianwin[j];
- maxindex = j;
- } else if (medianwin[j] < medianwin[middle]) {
- break;
- }
- }
-
- size_t peak = i + maxindex - middle;
-
-// std::cerr << "i = " << i << ", maxindex = " << maxindex << ", middle = " << middle << ", so peak at " << peak << std::endl;
-
- if (softPeakCandidates.empty() || lastSoftPeak != peak) {
-
- if (m_debugLevel > 1) {
- std::cerr << "soft peak at " << peak << " ("
- << peak * m_increment << "): "
- << medianwin[middle] << " > "
- << thresh << " and "
- << medianwin[middle]
- << " > " << medianwin[middle-1] << " and "
- << medianwin[middle]
- << " > " << medianwin[middle+1]
- << std::endl;
- }
-
- if (peak >= df.size()) {
- if (m_debugLevel > 2) {
- std::cerr << "peak is beyond end" << std::endl;
- }
- } else {
- softPeakCandidates.insert(peak);
- lastSoftPeak = peak;
- }
- }
-
- softPeakAmnesty = minspacing + maxindex - middle;
- if (m_debugLevel > 2) {
- std::cerr << "amnesty = " << softPeakAmnesty << std::endl;
- }
-
- } else if (softPeakAmnesty > 0) --softPeakAmnesty;
-
- if (mediansize >= medianmaxsize) {
- medianwin.pop_front();
- }
- if (nextDf < df.size()) {
- medianwin.push_back(df[nextDf]);
- } else {
- medianwin.push_back(0);
- }
- }
-
- std::vector<Peak> peaks;
-
- while (!hardPeakCandidates.empty() || !softPeakCandidates.empty()) {
-
- bool haveHardPeak = !hardPeakCandidates.empty();
- bool haveSoftPeak = !softPeakCandidates.empty();
-
- size_t hardPeak = (haveHardPeak ? *hardPeakCandidates.begin() : 0);
- size_t softPeak = (haveSoftPeak ? *softPeakCandidates.begin() : 0);
-
- Peak peak;
- peak.hard = false;
- peak.chunk = softPeak;
-
- bool ignore = false;
-
- if (haveHardPeak &&
- (!haveSoftPeak || hardPeak <= softPeak)) {
-
- if (m_debugLevel > 2) {
- std::cerr << "Hard peak: " << hardPeak << std::endl;
- }
-
- peak.hard = true;
- peak.chunk = hardPeak;
- hardPeakCandidates.erase(hardPeakCandidates.begin());
-
- } else {
- if (m_debugLevel > 2) {
- std::cerr << "Soft peak: " << softPeak << std::endl;
- }
- if (!peaks.empty() &&
- peaks[peaks.size()-1].hard &&
- peaks[peaks.size()-1].chunk + 3 >= softPeak) {
- if (m_debugLevel > 2) {
- std::cerr << "(ignoring, as we just had a hard peak)"
- << std::endl;
- }
- ignore = true;
- }
- }
-
- if (haveSoftPeak && peak.chunk == softPeak) {
- softPeakCandidates.erase(softPeakCandidates.begin());
- }
-
- if (!ignore) {
- peaks.push_back(peak);
- }
- }
-
- return peaks;
-}
-
-std::vector<float>
-StretchCalculator::smoothDF(const std::vector<float> &df)
-{
- std::vector<float> smoothedDF;
-
- for (size_t i = 0; i < df.size(); ++i) {
- // three-value moving mean window for simple smoothing
- float total = 0.f, count = 0;
- if (i > 0) { total += df[i-1]; ++count; }
- total += df[i]; ++count;
- if (i+1 < df.size()) { total += df[i+1]; ++count; }
- float mean = total / count;
- smoothedDF.push_back(mean);
- }
-
- return smoothedDF;
-}
-
-std::vector<int>
-StretchCalculator::distributeRegion(const std::vector<float> &dfIn,
- size_t duration, float ratio, bool phaseReset)
-{
- std::vector<float> df(dfIn);
- std::vector<int> increments;
-
- // The peak for the stretch detection function may appear after
- // the peak that we're using to calculate the start of the region.
- // We don't want that. If we find a peak in the first half of
- // the region, we should set all the values up to that point to
- // the same value as the peak.
-
- // (This might not be subtle enough, especially if the region is
- // long -- we want a bound that corresponds to acoustic perception
- // of the audible bounce.)
-
- for (size_t i = 1; i < df.size()/2; ++i) {
- if (df[i] < df[i-1]) {
- if (m_debugLevel > 1) {
- std::cerr << "stretch peak offset: " << i-1 << " (peak " << df[i-1] << ")" << std::endl;
- }
- for (size_t j = 0; j < i-1; ++j) {
- df[j] = df[i-1];
- }
- break;
- }
- }
-
- float maxDf = 0;
-
- for (size_t i = 0; i < df.size(); ++i) {
- if (i == 0 || df[i] > maxDf) maxDf = df[i];
- }
-
- // We want to try to ensure the last 100ms or so (if possible) are
- // tending back towards the maximum df, so that the stretchiness
- // reduces at the end of the stretched region.
-
- int reducedRegion = lrint((0.1 * m_sampleRate) / m_increment);
- if (reducedRegion > int(df.size()/5)) reducedRegion = df.size()/5;
-
- for (int i = 0; i < reducedRegion; ++i) {
- size_t index = df.size() - reducedRegion + i;
- df[index] = df[index] + ((maxDf - df[index]) * i) / reducedRegion;
- }
-
- long toAllot = long(duration) - long(m_increment * df.size());
-
- if (m_debugLevel > 1) {
- std::cerr << "region of " << df.size() << " chunks, output duration " << duration << ", toAllot " << toAllot << std::endl;
- }
-
- size_t totalIncrement = 0;
-
- // We place limits on the amount of displacement per chunk. if
- // ratio < 0, no increment should be larger than increment*ratio
- // or smaller than increment*ratio/2; if ratio > 0, none should be
- // smaller than increment*ratio or larger than increment*ratio*2.
- // We need to enforce this in the assignment of displacements to
- // allotments, not by trying to respond if something turns out
- // wrong.
-
- // Note that the ratio is only provided to this function for the
- // purposes of establishing this bound to the displacement.
-
- // so if
- // maxDisplacement / totalDisplacement > increment * ratio*2 - increment
- // (for ratio > 1)
- // or
- // maxDisplacement / totalDisplacement < increment * ratio/2
- // (for ratio < 1)
-
- // then we need to adjust and accommodate
-
- bool acceptableSquashRange = false;
-
- double totalDisplacement = 0;
- double maxDisplacement = 0; // min displacement will be 0 by definition
-
- maxDf = 0;
- float adj = 0;
-
- while (!acceptableSquashRange) {
-
- acceptableSquashRange = true;
- calculateDisplacements(df, maxDf, totalDisplacement, maxDisplacement,
- adj);
-
- if (m_debugLevel > 1) {
- std::cerr << "totalDisplacement " << totalDisplacement << ", max " << maxDisplacement << " (maxDf " << maxDf << ", df count " << df.size() << ")" << std::endl;
- }
-
- if (totalDisplacement == 0) {
-// Not usually a problem, in fact
-// std::cerr << "WARNING: totalDisplacement == 0 (duration " << duration << ", " << df.size() << " values in df)" << std::endl;
- if (!df.empty() && adj == 0) {
- acceptableSquashRange = false;
- adj = 1;
- }
- continue;
- }
-
- int extremeIncrement = m_increment + lrint((toAllot * maxDisplacement) / totalDisplacement);
- if (ratio < 1.0) {
- if (extremeIncrement > lrint(ceil(m_increment * ratio))) {
- std::cerr << "ERROR: extreme increment " << extremeIncrement << " > " << m_increment * ratio << " (this should not happen)" << std::endl;
- } else if (extremeIncrement < (m_increment * ratio) / 2) {
- if (m_debugLevel > 0) {
- std::cerr << "WARNING: extreme increment " << extremeIncrement << " < " << (m_increment * ratio) / 2 << std::endl;
- }
- acceptableSquashRange = false;
- }
- } else {
- if (extremeIncrement > m_increment * ratio * 2) {
- if (m_debugLevel > 0) {
- std::cerr << "WARNING: extreme increment " << extremeIncrement << " > " << m_increment * ratio * 2 << std::endl;
- }
- acceptableSquashRange = false;
- } else if (extremeIncrement < lrint(floor(m_increment * ratio))) {
- std::cerr << "ERROR: extreme increment " << extremeIncrement << " < " << m_increment * ratio << " (I thought this couldn't happen?)" << std::endl;
- }
- }
-
- if (!acceptableSquashRange) {
- // Need to make maxDisplacement smaller as a proportion of
- // the total displacement, yet ensure that the
- // displacements still sum to the total.
- adj += maxDf/10;
- }
- }
-
- for (size_t i = 0; i < df.size(); ++i) {
-
- double displacement = maxDf - df[i];
- if (displacement < 0) displacement -= adj;
- else displacement += adj;
-
- if (i == 0 && phaseReset) {
- if (df.size() == 1) {
- increments.push_back(duration);
- totalIncrement += duration;
- } else {
- increments.push_back(m_increment);
- totalIncrement += m_increment;
- }
- totalDisplacement -= displacement;
- continue;
- }
-
- double theoreticalAllotment = 0;
-
- if (totalDisplacement != 0) {
- theoreticalAllotment = (toAllot * displacement) / totalDisplacement;
- }
- int allotment = lrint(theoreticalAllotment);
- if (i + 1 == df.size()) allotment = toAllot;
-
- int increment = m_increment + allotment;
-
- if (increment <= 0) {
- // this is a serious problem, the allocation is quite
- // wrong if it allows increment to diverge so far from the
- // input increment
- std::cerr << "*** WARNING: increment " << increment << " <= 0, rounding to zero" << std::endl;
- increment = 0;
- allotment = increment - m_increment;
- }
-
- increments.push_back(increment);
- totalIncrement += increment;
-
- toAllot -= allotment;
- totalDisplacement -= displacement;
-
- if (m_debugLevel > 2) {
- std::cerr << "df " << df[i] << ", smoothed " << df[i] << ", disp " << displacement << ", allot " << theoreticalAllotment << ", incr " << increment << ", remain " << toAllot << std::endl;
- }
- }
-
- if (m_debugLevel > 2) {
- std::cerr << "total increment: " << totalIncrement << ", left over: " << toAllot << " to allot, displacement " << totalDisplacement << std::endl;
- }
-
- if (totalIncrement != duration) {
- std::cerr << "*** WARNING: calculated output duration " << totalIncrement << " != expected " << duration << std::endl;
- }
-
- return increments;
-}
-
-void
-StretchCalculator::calculateDisplacements(const std::vector<float> &df,
- float &maxDf,
- double &totalDisplacement,
- double &maxDisplacement,
- float adj) const
-{
- totalDisplacement = maxDisplacement = 0;
-
- maxDf = 0;
-
- for (size_t i = 0; i < df.size(); ++i) {
- if (i == 0 || df[i] > maxDf) maxDf = df[i];
- }
-
- for (size_t i = 0; i < df.size(); ++i) {
- double displacement = maxDf - df[i];
- if (displacement < 0) displacement -= adj;
- else displacement += adj;
- totalDisplacement += displacement;
- if (i == 0 || displacement > maxDisplacement) {
- maxDisplacement = displacement;
- }
- }
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_STRETCH_CALCULATOR_H_
-#define _RUBBERBAND_STRETCH_CALCULATOR_H_
-
-#include <sys/types.h>
-
-#include <vector>
-
-namespace RubberBand
-{
-
-class StretchCalculator
-{
-public:
- StretchCalculator(size_t sampleRate, size_t inputIncrement, bool useHardPeaks);
- virtual ~StretchCalculator();
-
- /**
- * Calculate phase increments for a region of audio, given the
- * overall target stretch ratio, input duration in audio samples,
- * and the audio curves to use for identifying phase lock points
- * (lockAudioCurve) and for allocating stretches to relatively
- * less prominent points (stretchAudioCurve).
- */
- virtual std::vector<int> calculate(double ratio, size_t inputDuration,
- const std::vector<float> &lockAudioCurve,
- const std::vector<float> &stretchAudioCurve);
-
- /**
- * Calculate the phase increment for a single audio block, given
- * the overall target stretch ratio and the block's value on the
- * phase-lock audio curve. State is retained between calls in the
- * StretchCalculator object; call reset() to reset it. This uses
- * a less sophisticated method than the offline calculate().
- */
- virtual int calculateSingle(double ratio, size_t inputDurationSoFar,
- float curveValue);
-
- void setUseHardPeaks(bool use) { m_useHardPeaks = use; }
-
- void reset();
-
- void setDebugLevel(int level) { m_debugLevel = level; }
-
- struct Peak {
- size_t chunk;
- bool hard;
- };
- std::vector<Peak> getLastCalculatedPeaks() const { return m_lastPeaks; }
-
- std::vector<float> smoothDF(const std::vector<float> &df);
-
-protected:
- std::vector<Peak> findPeaks(const std::vector<float> &audioCurve);
-
- std::vector<int> distributeRegion(const std::vector<float> ®ionCurve,
- size_t outputDuration, float ratio,
- bool phaseReset);
-
- void calculateDisplacements(const std::vector<float> &df,
- float &maxDf,
- double &totalDisplacement,
- double &maxDisplacement,
- float adj) const;
-
- size_t m_sampleRate;
- size_t m_blockSize;
- size_t m_increment;
- float m_prevDf;
- double m_divergence;
- float m_recovery;
- float m_prevRatio;
- int m_transientAmnesty; // only in RT mode; handled differently offline
- int m_debugLevel;
- bool m_useHardPeaks;
-
- std::vector<Peak> m_lastPeaks;
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-#include "StretcherChannelData.h"
-
-#include "Resampler.h"
-
-namespace RubberBand
-{
-
-RubberBandStretcher::Impl::ChannelData::ChannelData(size_t windowSize,
- size_t outbufSize)
-{
- std::set<size_t> s;
- construct(s, windowSize, outbufSize);
-}
-
-RubberBandStretcher::Impl::ChannelData::ChannelData(const std::set<size_t> &windowSizes,
- size_t initialWindowSize,
- size_t outbufSize)
-{
- construct(windowSizes, initialWindowSize, outbufSize);
-}
-
-void
-RubberBandStretcher::Impl::ChannelData::construct(const std::set<size_t> &windowSizes,
- size_t initialWindowSize,
- size_t outbufSize)
-{
- size_t maxSize = initialWindowSize;
-
- if (!windowSizes.empty()) {
- // std::set is ordered by value
- std::set<size_t>::const_iterator i = windowSizes.end();
- maxSize = *--i;
- }
- if (windowSizes.find(initialWindowSize) == windowSizes.end()) {
- if (initialWindowSize > maxSize) maxSize = initialWindowSize;
- }
-
- size_t realSize = maxSize/2 + 1; // size of the real "half" of freq data
-
-// std::cerr << "ChannelData::construct([" << windowSizes.size() << "], " << maxSize << ", " << outbufSize << ")" << std::endl;
-
- if (outbufSize < maxSize) outbufSize = maxSize;
-
- inbuf = new RingBuffer<float>(maxSize);
- outbuf = new RingBuffer<float>(outbufSize);
-
- mag = new double[realSize];
- phase = new double[realSize];
- prevPhase = new double[realSize];
- unwrappedPhase = new double[realSize];
- freqPeak = new size_t[realSize];
-
- accumulator = new float[maxSize];
- windowAccumulator = new float[maxSize];
-
- fltbuf = new float[maxSize];
-
- for (std::set<size_t>::const_iterator i = windowSizes.begin();
- i != windowSizes.end(); ++i) {
- ffts[*i] = new FFT(*i);
- ffts[*i]->initDouble();
- }
- if (windowSizes.find(initialWindowSize) == windowSizes.end()) {
- ffts[initialWindowSize] = new FFT(initialWindowSize);
- ffts[initialWindowSize]->initDouble();
- }
- fft = ffts[initialWindowSize];
-
- dblbuf = fft->getDoubleTimeBuffer();
-
- resampler = 0;
- resamplebuf = 0;
- resamplebufSize = 0;
-
- reset();
-
- for (size_t i = 0; i < realSize; ++i) {
- mag[i] = 0.0;
- phase[i] = 0.0;
- prevPhase[i] = 0.0;
- unwrappedPhase[i] = 0.0;
- freqPeak[i] = 0;
- }
-
- for (size_t i = 0; i < initialWindowSize; ++i) {
- dblbuf[i] = 0.0;
- }
-
- for (size_t i = 0; i < maxSize; ++i) {
- accumulator[i] = 0.f;
- windowAccumulator[i] = 0.f;
- fltbuf[i] = 0.0;
- }
-}
-
-void
-RubberBandStretcher::Impl::ChannelData::setWindowSize(size_t windowSize)
-{
- size_t oldSize = inbuf->getSize();
- size_t realSize = windowSize/2 + 1;
-
-// std::cerr << "ChannelData::setWindowSize(" << windowSize << ") [from " << oldSize << "]" << std::endl;
-
- if (oldSize >= windowSize) {
-
- // no need to reallocate buffers, just reselect fft
-
- //!!! we can't actually do this without locking against the
- //process thread, can we? we need to zero the mag/phase
- //buffers without interference
-
- if (ffts.find(windowSize) == ffts.end()) {
- //!!! this also requires a lock, but it shouldn't occur in
- //RT mode with proper initialisation
- ffts[windowSize] = new FFT(windowSize);
- ffts[windowSize]->initDouble();
- }
-
- fft = ffts[windowSize];
-
- dblbuf = fft->getDoubleTimeBuffer();
-
- for (size_t i = 0; i < windowSize; ++i) {
- dblbuf[i] = 0.0;
- }
-
- for (size_t i = 0; i < realSize; ++i) {
- mag[i] = 0.0;
- phase[i] = 0.0;
- prevPhase[i] = 0.0;
- unwrappedPhase[i] = 0.0;
- freqPeak[i] = 0;
- }
-
- return;
- }
-
- //!!! at this point we need a lock in case a different client
- //thread is calling process() -- we need this lock even if we
- //aren't running in threaded mode ourselves -- if we're in RT
- //mode, then the process call should trylock and fail if the lock
- //is unavailable (since this should never normally be the case in
- //general use in RT mode)
-
- RingBuffer<float> *newbuf = inbuf->resized(windowSize);
- delete inbuf;
- inbuf = newbuf;
-
- // We don't want to preserve data in these arrays
-
- delete[] mag;
- delete[] phase;
- delete[] prevPhase;
- delete[] unwrappedPhase;
- delete[] freqPeak;
-
- mag = new double[realSize];
- phase = new double[realSize];
- prevPhase = new double[realSize];
- unwrappedPhase = new double[realSize];
- freqPeak = new size_t[realSize];
-
- delete[] fltbuf;
- fltbuf = new float[windowSize];
-
- // But we do want to preserve data in these
-
- float *newAcc = new float[windowSize];
- for (size_t i = 0; i < oldSize; ++i) newAcc[i] = accumulator[i];
- delete[] accumulator;
- accumulator = newAcc;
-
- newAcc = new float[windowSize];
- for (size_t i = 0; i < oldSize; ++i) newAcc[i] = windowAccumulator[i];
- delete[] windowAccumulator;
- windowAccumulator = newAcc;
-
- //!!! and resampler?
-
- for (size_t i = 0; i < realSize; ++i) {
- mag[i] = 0.0;
- phase[i] = 0.0;
- prevPhase[i] = 0.0;
- unwrappedPhase[i] = 0.0;
- freqPeak[i] = 0;
- }
-
- for (size_t i = 0; i < windowSize; ++i) {
- fltbuf[i] = 0.0;
- }
-
- for (size_t i = oldSize; i < windowSize; ++i) {
- accumulator[i] = 0.f;
- windowAccumulator[i] = 0.f;
- }
-
- if (ffts.find(windowSize) == ffts.end()) {
- ffts[windowSize] = new FFT(windowSize);
- ffts[windowSize]->initDouble();
- }
-
- fft = ffts[windowSize];
-
- dblbuf = fft->getDoubleTimeBuffer();
-
- for (size_t i = 0; i < windowSize; ++i) {
- dblbuf[i] = 0.0;
- }
-}
-
-void
-RubberBandStretcher::Impl::ChannelData::setOutbufSize(size_t outbufSize)
-{
- size_t oldSize = outbuf->getSize();
-
-// std::cerr << "ChannelData::setOutbufSize(" << outbufSize << ") [from " << oldSize << "]" << std::endl;
-
- if (oldSize < outbufSize) {
-
- //!!! at this point we need a lock in case a different client
- //thread is calling process()
-
- RingBuffer<float> *newbuf = outbuf->resized(outbufSize);
- delete outbuf;
- outbuf = newbuf;
- }
-}
-
-RubberBandStretcher::Impl::ChannelData::~ChannelData()
-{
- delete resampler;
- delete[] resamplebuf;
-
- delete inbuf;
- delete outbuf;
- delete[] mag;
- delete[] phase;
- delete[] prevPhase;
- delete[] unwrappedPhase;
- delete[] freqPeak;
- delete[] accumulator;
- delete[] windowAccumulator;
- delete[] fltbuf;
-
- for (std::map<size_t, FFT *>::iterator i = ffts.begin();
- i != ffts.end(); ++i) {
- delete i->second;
- }
-}
-
-void
-RubberBandStretcher::Impl::ChannelData::reset()
-{
- inbuf->reset();
- outbuf->reset();
-
- if (resampler) resampler->reset();
-
- accumulatorFill = 0;
- prevIncrement = 0;
- chunkCount = 0;
- inCount = 0;
- inputSize = -1;
- outCount = 0;
- draining = false;
- outputComplete = false;
-}
-
-}
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_STRETCHERCHANNELDATA_H_
-#define _RUBBERBAND_STRETCHERCHANNELDATA_H_
-
-#include "StretcherImpl.h"
-
-#include <set>
-
-namespace RubberBand
-{
-
-class Resampler;
-
-class RubberBandStretcher::Impl::ChannelData
-{
-public:
- /**
- * Construct a ChannelData structure.
- *
- * The window size passed in here is the size for the FFT
- * calculation, and most of the buffer sizes also depend on
- * it. In practice it is always a power of two and except for
- * very extreme stretches is always either 1024, 2048 or 4096.
- *
- * The outbuf size depends on other factors as well, including
- * the pitch scale factor and any maximum processing block
- * size specified by the user of the code.
- */
- ChannelData(size_t windowSize, size_t outbufSize);
-
- /**
- * Construct a ChannelData structure that can process at
- * different FFT sizes without requiring reallocation when the
- * size changes. The size can subsequently be changed with a
- * call to setWindowSize. Reallocation will only be necessary
- * if setWindowSize is called with a value not equal to one of
- * those passed in to the constructor.
- *
- * The outbufSize should be the maximum possible outbufSize to
- * avoid reallocation, which will happen if setOutbufSize is
- * called subsequently.
- */
- ChannelData(const std::set<size_t> &windowSizes,
- size_t initialWindowSize, size_t outbufSize);
- ~ChannelData();
-
- /**
- * Reset buffers
- */
- void reset();
-
- /**
- * Set the FFT and buffer sizes from the given processing
- * window size. If this ChannelData was constructed with a set
- * of window sizes and the given window size here was among
- * them, no reallocation will be required.
- */
- void setWindowSize(size_t windowSize);
-
- /**
- * Set the outbufSize for the channel data. Reallocation will
- * occur.
- */
- void setOutbufSize(size_t outbufSize);
-
- RingBuffer<float> *inbuf;
- RingBuffer<float> *outbuf;
-
- double *mag;
- double *phase;
-
- double *prevPhase;
- double *unwrappedPhase;
-
- size_t *freqPeak;
-
- float *accumulator;
- size_t accumulatorFill;
- float *windowAccumulator;
-
- float *fltbuf;
- double *dblbuf; // owned by FFT object, only used for time domain FFT i/o
-
- size_t prevIncrement; // only used in RT mode
-
- size_t chunkCount;
- size_t inCount;
- long inputSize; // set only after known (when data ended); -1 previously
- size_t outCount;
-
- bool draining;
- bool outputComplete;
-
- FFT *fft;
- std::map<size_t, FFT *> ffts;
-
- Resampler *resampler;
- float *resamplebuf;
- size_t resamplebufSize;
-
-private:
- void construct(const std::set<size_t> &windowSizes,
- size_t initialWindowSize, size_t outbufSize);
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "StretcherImpl.h"
-#include "PercussiveAudioCurve.h"
-#include "HighFrequencyAudioCurve.h"
-#include "SpectralDifferenceAudioCurve.h"
-#include "ConstantAudioCurve.h"
-#include "StretchCalculator.h"
-#include "StretcherChannelData.h"
-#include "Resampler.h"
-
-#include <cassert>
-#include <cmath>
-#include <set>
-#include <map>
-
-using std::cerr;
-using std::endl;
-using std::vector;
-using std::map;
-using std::set;
-using std::max;
-using std::min;
-
-namespace RubberBand {
-
-const size_t
-RubberBandStretcher::Impl::m_defaultIncrement = 256;
-
-const size_t
-RubberBandStretcher::Impl::m_defaultWindowSize = 2048;
-
-int
-RubberBandStretcher::Impl::m_defaultDebugLevel = 0;
-
-
-RubberBandStretcher::Impl::Impl(RubberBandStretcher *stretcher,
- size_t sampleRate,
- size_t channels,
- Options options,
- double initialTimeRatio,
- double initialPitchScale) :
- m_stretcher(stretcher),
- m_channels(channels),
- m_timeRatio(initialTimeRatio),
- m_pitchScale(initialPitchScale),
- m_windowSize(m_defaultWindowSize),
- m_increment(m_defaultIncrement),
- m_outbufSize(m_defaultWindowSize * 2),
- m_maxProcessSize(m_defaultWindowSize),
- m_expectedInputDuration(0),
- m_threaded(false),
- m_realtime(false),
- m_options(options),
- m_debugLevel(m_defaultDebugLevel),
- m_mode(JustCreated),
- m_window(0),
- m_studyFFT(0),
- m_spaceAvailable("space"),
- m_inputDuration(0),
- m_lastProcessOutputIncrements(16),
- m_lastProcessPhaseResetDf(16),
- m_phaseResetAudioCurve(0),
- m_stretchAudioCurve(0),
- m_stretchCalculator(0),
- m_freq0(600),
- m_freq1(1200),
- m_freq2(12000),
- m_baseWindowSize(m_defaultWindowSize)
-{
- if (m_debugLevel > 0) {
- cerr << "RubberBandStretcher::Impl::Impl: rate = " << m_stretcher->m_sampleRate << ", options = " << options << endl;
- }
-
- // Window size will vary according to the audio sample rate, but
- // we don't let it drop below the 48k default
- m_rateMultiple = float(m_stretcher->m_sampleRate) / 48000.f;
- if (m_rateMultiple < 1.f) m_rateMultiple = 1.f;
- m_baseWindowSize = roundUp(int(m_defaultWindowSize * m_rateMultiple));
-
- if ((options & OptionWindowShort) || (options & OptionWindowLong)) {
- if ((options & OptionWindowShort) && (options & OptionWindowLong)) {
- cerr << "RubberBandStretcher::Impl::Impl: Cannot specify OptionWindowLong and OptionWindowShort together; falling back to OptionWindowStandard" << endl;
- } else if (options & OptionWindowShort) {
- m_baseWindowSize = m_baseWindowSize / 2;
- if (m_debugLevel > 0) {
- cerr << "setting baseWindowSize to " << m_baseWindowSize << endl;
- }
- } else if (options & OptionWindowLong) {
- m_baseWindowSize = m_baseWindowSize * 2;
- if (m_debugLevel > 0) {
- cerr << "setting baseWindowSize to " << m_baseWindowSize << endl;
- }
- }
- m_windowSize = m_baseWindowSize;
- m_outbufSize = m_baseWindowSize * 2;
- m_maxProcessSize = m_baseWindowSize;
- }
-
- if (m_options & OptionProcessRealTime) {
-
- m_realtime = true;
-
- if (!(m_options & OptionStretchPrecise)) {
- m_options |= OptionStretchPrecise;
- }
- }
-
- if (m_channels > 1) {
-
- m_threaded = true;
-
- if (m_realtime) {
- m_threaded = false;
- } else if (m_options & OptionThreadingNever) {
- m_threaded = false;
- } else if (!(m_options & OptionThreadingAlways) &&
- !system_is_multiprocessor()) {
- m_threaded = false;
- }
-
- if (m_threaded && m_debugLevel > 0) {
- cerr << "Going multithreaded..." << endl;
- }
- }
-
- configure();
-}
-
-RubberBandStretcher::Impl::~Impl()
-{
- if (m_threaded) {
- MutexLocker locker(&m_threadSetMutex);
- for (set<ProcessThread *>::iterator i = m_threadSet.begin();
- i != m_threadSet.end(); ++i) {
- if (m_debugLevel > 0) {
- cerr << "RubberBandStretcher::~RubberBandStretcher: joining (channel " << *i << ")" << endl;
- }
- (*i)->abandon();
- (*i)->wait();
- delete *i;
- }
- }
-
- for (size_t c = 0; c < m_channels; ++c) {
- delete m_channelData[c];
- }
-
- delete m_phaseResetAudioCurve;
- delete m_stretchAudioCurve;
- delete m_stretchCalculator;
- delete m_studyFFT;
-
- for (map<size_t, Window<float> *>::iterator i = m_windows.begin();
- i != m_windows.end(); ++i) {
- delete i->second;
- }
-}
-
-void
-RubberBandStretcher::Impl::reset()
-{
- if (m_threaded) {
- m_threadSetMutex.lock();
- for (set<ProcessThread *>::iterator i = m_threadSet.begin();
- i != m_threadSet.end(); ++i) {
- if (m_debugLevel > 0) {
- cerr << "RubberBandStretcher::~RubberBandStretcher: joining (channel " << *i << ")" << endl;
- }
- (*i)->abandon();
- (*i)->wait();
- delete *i;
- }
- m_threadSet.clear();
- }
-
- for (size_t c = 0; c < m_channels; ++c) {
- m_channelData[c]->reset();
- }
-
- m_mode = JustCreated;
- if (m_phaseResetAudioCurve) m_phaseResetAudioCurve->reset();
- if (m_stretchAudioCurve) m_stretchAudioCurve->reset();
- m_inputDuration = 0;
-
- if (m_threaded) m_threadSetMutex.unlock();
-
- reconfigure();
-}
-
-void
-RubberBandStretcher::Impl::setTimeRatio(double ratio)
-{
- if (!m_realtime) {
- if (m_mode == Studying || m_mode == Processing) {
- cerr << "RubberBandStretcher::Impl::setTimeRatio: Cannot set ratio while studying or processing in non-RT mode" << endl;
- return;
- }
- }
-
- if (ratio == m_timeRatio) return;
- m_timeRatio = ratio;
-
- reconfigure();
-}
-
-void
-RubberBandStretcher::Impl::setPitchScale(double fs)
-{
- if (!m_realtime) {
- if (m_mode == Studying || m_mode == Processing) {
- cerr << "RubberBandStretcher::Impl::setPitchScale: Cannot set ratio while studying or processing in non-RT mode" << endl;
- return;
- }
- }
-
- if (fs == m_pitchScale) return;
- m_pitchScale = fs;
-
- reconfigure();
-}
-
-double
-RubberBandStretcher::Impl::getTimeRatio() const
-{
- return m_timeRatio;
-}
-
-double
-RubberBandStretcher::Impl::getPitchScale() const
-{
- return m_pitchScale;
-}
-
-void
-RubberBandStretcher::Impl::setExpectedInputDuration(size_t samples)
-{
- if (samples == m_expectedInputDuration) return;
- m_expectedInputDuration = samples;
-
- reconfigure();
-}
-
-void
-RubberBandStretcher::Impl::setMaxProcessSize(size_t samples)
-{
- if (samples <= m_maxProcessSize) return;
- m_maxProcessSize = samples;
-
- reconfigure();
-}
-
-float
-RubberBandStretcher::Impl::getFrequencyCutoff(int n) const
-{
- switch (n) {
- case 0: return m_freq0;
- case 1: return m_freq1;
- case 2: return m_freq2;
- }
- return 0.f;
-}
-
-void
-RubberBandStretcher::Impl::setFrequencyCutoff(int n, float f)
-{
- switch (n) {
- case 0: m_freq0 = f; break;
- case 1: m_freq1 = f; break;
- case 2: m_freq2 = f; break;
- }
-}
-
-double
-RubberBandStretcher::Impl::getEffectiveRatio() const
-{
- // Returns the ratio that the internal time stretcher needs to
- // achieve, not the resulting duration ratio of the output (which
- // is simply m_timeRatio).
-
- // A frequency shift is achieved using an additional time shift,
- // followed by resampling back to the original time shift to
- // change the pitch. Note that the resulting frequency change is
- // fixed, as it is effected by the resampler -- in contrast to
- // time shifting, which is variable aiming to place the majority
- // of the stretch or squash in low-interest regions of audio.
-
- return m_timeRatio * m_pitchScale;
-}
-
-size_t
-RubberBandStretcher::Impl::roundUp(size_t value)
-{
- if (!(value & (value - 1))) return value;
- int bits = 0;
- while (value) { ++bits; value >>= 1; }
- value = 1 << bits;
- return value;
-}
-
-void
-RubberBandStretcher::Impl::calculateSizes()
-{
- size_t inputIncrement = m_defaultIncrement;
- size_t windowSize = m_baseWindowSize;
- size_t outputIncrement;
-
- double r = getEffectiveRatio();
-
- if (m_realtime) {
-
- // use a fixed input increment
-
- inputIncrement = roundUp(int(m_defaultIncrement * m_rateMultiple));
-
- if (r < 1) {
- outputIncrement = int(floor(inputIncrement * r));
- if (outputIncrement < 1) {
- outputIncrement = 1;
- inputIncrement = roundUp(lrint(ceil(outputIncrement / r)));
- windowSize = inputIncrement * 4;
- }
- } else {
- outputIncrement = int(ceil(inputIncrement * r));
- while (outputIncrement > 1024 && inputIncrement > 1) {
- inputIncrement /= 2;
- outputIncrement = lrint(ceil(inputIncrement * r));
- }
- windowSize = std::max(windowSize, roundUp(outputIncrement * 6));
- if (r > 5) while (windowSize < 8192) windowSize *= 2;
- }
-
- } else {
-
- // use a variable increment
-
- if (r < 1) {
- inputIncrement = windowSize / 4;
- while (inputIncrement >= 512) inputIncrement /= 2;
- outputIncrement = int(floor(inputIncrement * r));
- if (outputIncrement < 1) {
- outputIncrement = 1;
- inputIncrement = roundUp(lrint(ceil(outputIncrement / r)));
- windowSize = inputIncrement * 4;
- }
- } else {
- outputIncrement = windowSize / 6;
- inputIncrement = int(outputIncrement / r);
- while (outputIncrement > 1024 && inputIncrement > 1) {
- outputIncrement /= 2;
- inputIncrement = int(outputIncrement / r);
- }
- windowSize = std::max(windowSize, roundUp(outputIncrement * 6));
- if (r > 5) while (windowSize < 8192) windowSize *= 2;
- }
- }
-
- if (m_expectedInputDuration > 0) {
- while (inputIncrement * 4 > m_expectedInputDuration &&
- inputIncrement > 1) {
- inputIncrement /= 2;
- }
- }
-
- // windowSize can be almost anything, but it can't be greater than
- // 4 * m_baseWindowSize unless ratio is less than 1/1024.
-
- m_windowSize = windowSize;
- m_increment = inputIncrement;
-
- // When squashing, the greatest theoretically possible output
- // increment is the input increment. When stretching adaptively
- // the sky's the limit in principle, but we expect
- // StretchCalculator to restrict itself to using no more than
- // twice the basic output increment (i.e. input increment times
- // ratio) for any chunk.
-
- if (m_debugLevel > 0) {
- cerr << "configure: effective ratio = " << getEffectiveRatio() << endl;
- cerr << "configure: window size = " << m_windowSize << ", increment = " << m_increment << " (approx output increment = " << int(lrint(m_increment * getEffectiveRatio())) << ")" << endl;
- }
-
- if (m_windowSize > m_maxProcessSize) {
- m_maxProcessSize = m_windowSize;
- }
-
- m_outbufSize =
- size_t
- (ceil(max
- (m_maxProcessSize / m_pitchScale,
- m_windowSize * 2 * (m_timeRatio > 1.f ? m_timeRatio : 1.f))));
-
- if (m_realtime) {
- // This headroom is so as to try to avoid reallocation when
- // the pitch scale changes
- m_outbufSize = m_outbufSize * 16;
- } else {
- if (m_threaded) {
- // This headroom is to permit the processing threads to
- // run ahead of the buffer output drainage; the exact
- // amount of headroom is a question of tuning rather than
- // results
- m_outbufSize = m_outbufSize * 16;
- }
- }
-
- if (m_debugLevel > 0) {
- cerr << "configure: outbuf size = " << m_outbufSize << endl;
- }
-}
-
-void
-RubberBandStretcher::Impl::configure()
-{
-// std::cerr << "configure[" << this << "]: realtime = " << m_realtime << ", pitch scale = "
-// << m_pitchScale << ", channels = " << m_channels << std::endl;
-
- size_t prevWindowSize = m_windowSize;
- size_t prevOutbufSize = m_outbufSize;
- if (m_windows.empty()) {
- prevWindowSize = 0;
- prevOutbufSize = 0;
- }
-
- calculateSizes();
-
- bool windowSizeChanged = (prevWindowSize != m_windowSize);
- bool outbufSizeChanged = (prevOutbufSize != m_outbufSize);
-
- // This function may be called at any time in non-RT mode, after a
- // parameter has changed. It shouldn't be legal to call it after
- // processing has already begun.
-
- // This function is only called once (on construction) in RT
- // mode. After that reconfigure() does the work in a hopefully
- // RT-safe way.
-
- set<size_t> windowSizes;
- if (m_realtime) {
- windowSizes.insert(m_baseWindowSize);
- windowSizes.insert(m_baseWindowSize * 2);
- windowSizes.insert(m_baseWindowSize * 4);
- }
- windowSizes.insert(m_windowSize);
-
- if (windowSizeChanged) {
-
- for (set<size_t>::const_iterator i = windowSizes.begin();
- i != windowSizes.end(); ++i) {
- if (m_windows.find(*i) == m_windows.end()) {
- m_windows[*i] = new Window<float>(HanningWindow, *i);
- }
- }
- m_window = m_windows[m_windowSize];
-
- if (m_debugLevel > 0) {
- cerr << "Window area: " << m_window->getArea() << "; synthesis window area: " << m_window->getArea() << endl;
- }
- }
-
- if (windowSizeChanged || outbufSizeChanged) {
-
- for (size_t c = 0; c < m_channelData.size(); ++c) {
- delete m_channelData[c];
- }
- m_channelData.clear();
-
- for (size_t c = 0; c < m_channels; ++c) {
- m_channelData.push_back
- (new ChannelData(windowSizes, m_windowSize, m_outbufSize));
- }
- }
-
- if (!m_realtime && windowSizeChanged) {
- delete m_studyFFT;
- m_studyFFT = new FFT(m_windowSize);
- m_studyFFT->initFloat();
- }
-
- if (m_pitchScale != 1.0 || m_realtime) {
-
- for (size_t c = 0; c < m_channels; ++c) {
-
- if (m_channelData[c]->resampler) continue;
-
- m_channelData[c]->resampler =
- new Resampler(Resampler::FastestTolerable, 1, 4096 * 16);
-
- // rbs is the amount of buffer space we think we'll need
- // for resampling; but allocate a sensible amount in case
- // the pitch scale changes during use
- size_t rbs =
- lrintf(ceil((m_increment * m_timeRatio * 2) / m_pitchScale));
- if (rbs < m_increment * 16) rbs = m_increment * 16;
- m_channelData[c]->resamplebufSize = rbs;
- m_channelData[c]->resamplebuf = new float[rbs];
- }
- }
-
- delete m_phaseResetAudioCurve;
- m_phaseResetAudioCurve = new PercussiveAudioCurve(m_stretcher->m_sampleRate,
- m_windowSize);
-
- // stretchAudioCurve unused in RT mode; phaseResetAudioCurve and
- // stretchCalculator however are used in all modes
-
- if (!m_realtime) {
- delete m_stretchAudioCurve;
- if (!(m_options & OptionStretchPrecise)) {
- m_stretchAudioCurve = new SpectralDifferenceAudioCurve
- (m_stretcher->m_sampleRate, m_windowSize);
- } else {
- m_stretchAudioCurve = new ConstantAudioCurve
- (m_stretcher->m_sampleRate, m_windowSize);
- }
- }
-
- delete m_stretchCalculator;
- m_stretchCalculator = new StretchCalculator
- (m_stretcher->m_sampleRate, m_increment,
- !(m_options & OptionTransientsSmooth));
-
- m_stretchCalculator->setDebugLevel(m_debugLevel);
- m_inputDuration = 0;
-
- // Prepare the inbufs with half a chunk of emptiness. The centre
- // point of the first processing chunk for the onset detector
- // should be the first sample of the audio, and we continue until
- // we can no longer centre a chunk within the input audio. The
- // number of onset detector chunks will be the number of audio
- // samples input, divided by the input increment, plus one.
-
- // In real-time mode, we don't do this prefill -- it's better to
- // start with a swoosh than introduce more latency, and we don't
- // want gaps when the ratio changes.
-
- if (!m_realtime) {
- for (size_t c = 0; c < m_channels; ++c) {
- m_channelData[c]->reset();
- m_channelData[c]->inbuf->zero(m_windowSize/2);
- }
- }
-}
-
-
-void
-RubberBandStretcher::Impl::reconfigure()
-{
- if (!m_realtime) {
- if (m_mode == Studying) {
- // stop and calculate the stretch curve so far, then reset
- // the df vectors
- calculateStretch();
- m_phaseResetDf.clear();
- m_stretchDf.clear();
- m_inputDuration = 0;
- }
- configure();
- }
-
- size_t prevWindowSize = m_windowSize;
- size_t prevOutbufSize = m_outbufSize;
-
- calculateSizes();
-
- // There are various allocations in this function, but they should
- // never happen in normal use -- they just recover from the case
- // where not all of the things we need were correctly created when
- // we first configured (for whatever reason). This is intended to
- // be "effectively" realtime safe. The same goes for
- // ChannelData::setOutbufSize and setWindowSize.
-
- if (m_windowSize != prevWindowSize) {
-
- if (m_windows.find(m_windowSize) == m_windows.end()) {
- std::cerr << "WARNING: reconfigure(): window allocation (size " << m_windowSize << ") required in RT mode" << std::endl;
- m_windows[m_windowSize] = new Window<float>(HanningWindow, m_windowSize);
- }
- m_window = m_windows[m_windowSize];
-
- for (size_t c = 0; c < m_channels; ++c) {
- m_channelData[c]->setWindowSize(m_windowSize);
- }
- }
-
- if (m_outbufSize != prevOutbufSize) {
- for (size_t c = 0; c < m_channels; ++c) {
- m_channelData[c]->setOutbufSize(m_outbufSize);
- }
- }
-
- if (m_pitchScale != 1.0) {
- for (size_t c = 0; c < m_channels; ++c) {
-
- if (m_channelData[c]->resampler) continue;
-
- std::cerr << "WARNING: reconfigure(): resampler construction required in RT mode" << std::endl;
-
- m_channelData[c]->resampler =
- new Resampler(Resampler::FastestTolerable, 1, m_windowSize);
-
- m_channelData[c]->resamplebufSize =
- lrintf(ceil((m_increment * m_timeRatio * 2) / m_pitchScale));
- m_channelData[c]->resamplebuf =
- new float[m_channelData[c]->resamplebufSize];
- }
- }
-
- if (m_windowSize != prevWindowSize) {
- m_phaseResetAudioCurve->setWindowSize(m_windowSize);
- }
-}
-
-size_t
-RubberBandStretcher::Impl::getLatency() const
-{
- if (!m_realtime) return 0;
- return int((m_windowSize/2) / m_pitchScale + 1);
-}
-
-void
-RubberBandStretcher::Impl::setTransientsOption(Options options)
-{
- if (!m_realtime) {
- cerr << "RubberBandStretcher::Impl::setTransientsOption: Not permissible in non-realtime mode" << endl;
- return;
- }
- m_options &= ~(OptionTransientsMixed |
- OptionTransientsSmooth |
- OptionTransientsCrisp);
- m_options |= options;
-
- m_stretchCalculator->setUseHardPeaks
- (!(m_options & OptionTransientsSmooth));
-}
-
-void
-RubberBandStretcher::Impl::setPhaseOption(Options options)
-{
- m_options &= ~(OptionPhaseAdaptive |
- OptionPhasePeakLocked |
- OptionPhaseIndependent);
- m_options |= options;
-}
-
-void
-RubberBandStretcher::Impl::study(const float *const *input, size_t samples, bool final)
-{
- if (m_realtime) {
- if (m_debugLevel > 1) {
- cerr << "RubberBandStretcher::Impl::study: Not meaningful in realtime mode" << endl;
- }
- return;
- }
-
- if (m_mode == Processing || m_mode == Finished) {
- cerr << "RubberBandStretcher::Impl::study: Cannot study after processing" << endl;
- return;
- }
- m_mode = Studying;
-
- size_t consumed = 0;
-
- ChannelData &cd = *m_channelData[0];
- RingBuffer<float> &inbuf = *cd.inbuf;
-
- const float *mixdown;
- float *mdalloc = 0;
-
- if (m_channels > 1 || final) {
- // mix down into a single channel for analysis
- mdalloc = new float[samples];
- for (size_t i = 0; i < samples; ++i) {
- if (i < samples) {
- mdalloc[i] = input[0][i];
- } else {
- mdalloc[i] = 0.f;
- }
- }
- for (size_t c = 1; c < m_channels; ++c) {
- for (size_t i = 0; i < samples; ++i) {
- mdalloc[i] += input[c][i];
- }
- }
- for (size_t i = 0; i < samples; ++i) {
- mdalloc[i] /= m_channels;
- }
- mixdown = mdalloc;
- } else {
- mixdown = input[0];
- }
-
- while (consumed < samples) {
-
- size_t writable = inbuf.getWriteSpace();
- writable = min(writable, samples - consumed);
-
- if (writable == 0) {
- // warn
- cerr << "WARNING: writable == 0 (consumed = " << consumed << ", samples = " << samples << ")" << endl;
- } else {
- inbuf.write(mixdown + consumed, writable);
- consumed += writable;
- }
-
- while ((inbuf.getReadSpace() >= m_windowSize) ||
- (final && (inbuf.getReadSpace() >= m_windowSize/2))) {
-
- // We know we have at least m_windowSize samples available
- // in m_inbuf. We need to peek m_windowSize of them for
- // processing, and then skip m_increment to advance the
- // read pointer.
-
- // cd.accumulator is not otherwise used during studying,
- // so we can use it as a temporary buffer here
-
- size_t got = inbuf.peek(cd.accumulator, m_windowSize);
- assert(final || got == m_windowSize);
-
- m_window->cut(cd.accumulator);
-
- // We don't need the fftshift for studying, as we're only
- // interested in magnitude
-
- m_studyFFT->forwardMagnitude(cd.accumulator, cd.fltbuf);
-
- float df = m_phaseResetAudioCurve->process(cd.fltbuf, m_increment);
- m_phaseResetDf.push_back(df);
-
-// cout << m_phaseResetDf.size() << " [" << final << "] -> " << df << " \t: ";
-
- df = m_stretchAudioCurve->process(cd.fltbuf, m_increment);
- m_stretchDf.push_back(df);
-
-// cout << df << endl;
-
- // We have augmented the input by m_windowSize/2 so
- // that the first chunk is centred on the first audio
- // sample. We want to ensure that m_inputDuration
- // contains the exact input duration without including
- // this extra bit. We just add up all the increments
- // here, and deduct the extra afterwards.
-
- m_inputDuration += m_increment;
-// cerr << "incr input duration by increment: " << m_increment << " -> " << m_inputDuration << endl;
- inbuf.skip(m_increment);
- }
- }
-
- if (final) {
- int rs = inbuf.getReadSpace();
- m_inputDuration += rs;
-// cerr << "incr input duration by read space: " << rs << " -> " << m_inputDuration << endl;
-
- if (m_inputDuration > m_windowSize/2) { // deducting the extra
- m_inputDuration -= m_windowSize/2;
- }
- }
-
- if (m_channels > 1) delete[] mdalloc;
-}
-
-vector<int>
-RubberBandStretcher::Impl::getOutputIncrements() const
-{
- if (!m_realtime) {
- return m_outputIncrements;
- } else {
- vector<int> increments;
- while (m_lastProcessOutputIncrements.getReadSpace() > 0) {
- increments.push_back(m_lastProcessOutputIncrements.readOne());
- }
- return increments;
- }
-}
-
-vector<float>
-RubberBandStretcher::Impl::getPhaseResetCurve() const
-{
- if (!m_realtime) {
- return m_phaseResetDf;
- } else {
- vector<float> df;
- while (m_lastProcessPhaseResetDf.getReadSpace() > 0) {
- df.push_back(m_lastProcessPhaseResetDf.readOne());
- }
- return df;
- }
-}
-
-vector<int>
-RubberBandStretcher::Impl::getExactTimePoints() const
-{
- std::vector<int> points;
- if (!m_realtime) {
- std::vector<StretchCalculator::Peak> peaks =
- m_stretchCalculator->getLastCalculatedPeaks();
- for (size_t i = 0; i < peaks.size(); ++i) {
- points.push_back(peaks[i].chunk);
- }
- }
- return points;
-}
-
-void
-RubberBandStretcher::Impl::calculateStretch()
-{
- std::vector<int> increments = m_stretchCalculator->calculate
- (getEffectiveRatio(),
- m_inputDuration,
- m_phaseResetDf,
- m_stretchDf);
-
- if (m_outputIncrements.empty()) m_outputIncrements = increments;
- else {
- for (size_t i = 0; i < increments.size(); ++i) {
- m_outputIncrements.push_back(increments[i]);
- }
- }
-
- return;
-}
-
-void
-RubberBandStretcher::Impl::setDebugLevel(int level)
-{
- m_debugLevel = level;
- if (m_stretchCalculator) m_stretchCalculator->setDebugLevel(level);
-}
-
-size_t
-RubberBandStretcher::Impl::getSamplesRequired() const
-{
- size_t reqd = 0;
-
- for (size_t c = 0; c < m_channels; ++c) {
-
- size_t reqdHere = 0;
-
- ChannelData &cd = *m_channelData[c];
- RingBuffer<float> &inbuf = *cd.inbuf;
-
- size_t rs = inbuf.getReadSpace();
-
- // See notes in testInbufReadSpace
-
- if (rs < m_windowSize && !cd.draining) {
-
- if (cd.inputSize == -1) {
- reqdHere = m_windowSize - rs;
- if (reqdHere > reqd) reqd = reqdHere;
- continue;
- }
-
- if (rs == 0) {
- reqdHere = m_windowSize;
- if (reqdHere > reqd) reqd = reqdHere;
- continue;
- }
- }
- }
-
- return reqd;
-}
-
-void
-RubberBandStretcher::Impl::process(const float *const *input, size_t samples, bool final)
-{
- if (m_mode == Finished) {
- cerr << "RubberBandStretcher::Impl::process: Cannot process again after final chunk" << endl;
- return;
- }
-
- if (m_mode == JustCreated || m_mode == Studying) {
-
- if (m_mode == Studying) {
- calculateStretch();
- }
-
- for (size_t c = 0; c < m_channels; ++c) {
- m_channelData[c]->reset();
- m_channelData[c]->inbuf->zero(m_windowSize/2);
- }
-
- if (m_threaded) {
- MutexLocker locker(&m_threadSetMutex);
-
- for (size_t c = 0; c < m_channels; ++c) {
- ProcessThread *thread = new ProcessThread(this, c);
- m_threadSet.insert(thread);
- thread->start();
- }
-
- if (m_debugLevel > 0) {
- cerr << m_channels << " threads created" << endl;
- }
- }
-
- m_mode = Processing;
- }
-
- bool allConsumed = false;
-
- map<size_t, size_t> consumed;
- for (size_t c = 0; c < m_channels; ++c) {
- consumed[c] = 0;
- }
-
- while (!allConsumed) {
-
-// cerr << "process looping" << endl;
-
-//#ifndef NO_THREADING
-// if (m_threaded) {
-// pthread_mutex_lock(&m_inputProcessedMutex);
-// }
-//#endif
-
- // In a threaded mode, our "consumed" counters only indicate
- // the number of samples that have been taken into the input
- // ring buffers waiting to be processed by the process thread.
- // In non-threaded mode, "consumed" counts the number that
- // have actually been processed.
-
- allConsumed = true;
- for (size_t c = 0; c < m_channels; ++c) {
- consumed[c] += consumeChannel(c,
- input[c] + consumed[c],
- samples - consumed[c]);
- if (consumed[c] < samples) {
- allConsumed = false;
-// cerr << "process: waiting on input consumption for channel " << c << endl;
- } else {
- if (final) {
- m_channelData[c]->inputSize = m_channelData[c]->inCount;
- }
-// cerr << "process: happy with channel " << c << endl;
- }
- if (!m_threaded && !m_realtime) {
- bool any = false, last = false;
- processChunks(c, any, last);
- }
- }
-
- if (m_realtime) {
- // When running in real time, we need to process both
- // channels in step because we will need to use the sum of
- // their frequency domain representations as the input to
- // the realtime onset detector
- processOneChunk();
- }
-
- if (m_threaded) {
- for (ThreadSet::iterator i = m_threadSet.begin();
- i != m_threadSet.end(); ++i) {
- (*i)->signalDataAvailable();
- }
- if (!allConsumed) {
- m_spaceAvailable.wait(500);
- }
-/*
- } else {
- if (!allConsumed) {
- cerr << "RubberBandStretcher::Impl::process: ERROR: Too much data provided to process() call -- either call setMaxProcessSize() beforehand, or provide only getSamplesRequired() frames at a time" << endl;
- for (size_t c = 0; c < m_channels; ++c) {
- cerr << "channel " << c << ": " << samples << " provided, " << consumed[c] << " consumed" << endl;
- }
-// break;
- }
-*/
- }
- }
-
-// cerr << "process returning" << endl;
-
- if (final) m_mode = Finished;
-}
-
-size_t
-RubberBandStretcher::Impl::consumeChannel(size_t c, const float *input, size_t samples)
-{
- size_t consumed = 0;
-
- ChannelData &cd = *m_channelData[c];
- RingBuffer<float> &inbuf = *cd.inbuf;
-
- while (consumed < samples) {
-
- size_t writable = inbuf.getWriteSpace();
-
-// cerr << "channel " << c << ": samples remaining = " << samples - consumed << ", writable space = " << writable << endl;
-
- writable = min(writable, samples - consumed);
-
- if (writable == 0) {
- // warn
-// cerr << "WARNING: writable == 0 for ch " << c << " (consumed = " << consumed << ", samples = " << samples << ")" << endl;
- return consumed;
- } else {
- inbuf.write(input + consumed, writable);
- consumed += writable;
- cd.inCount += writable;
- }
- }
-
- return samples;
-}
-
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_STRETCHERIMPL_H_
-#define _RUBBERBAND_STRETCHERIMPL_H_
-
-#include "RubberBandStretcher.h"
-
-#include "Window.h"
-#include "Thread.h"
-#include "RingBuffer.h"
-#include "FFT.h"
-#include "sysutils.h"
-
-#include <set>
-
-namespace RubberBand
-{
-
-class AudioCurve;
-class StretchCalculator;
-
-class RubberBandStretcher::Impl
-{
-public:
- Impl(RubberBandStretcher *stretcher,
- size_t sampleRate, size_t channels, Options options,
- double initialTimeRatio, double initialPitchScale);
- ~Impl();
-
- void reset();
- void setTimeRatio(double ratio);
- void setPitchScale(double scale);
-
- double getTimeRatio() const;
- double getPitchScale() const;
-
- size_t getLatency() const;
-
- void setTransientsOption(Options);
- void setPhaseOption(Options);
-
- void setExpectedInputDuration(size_t samples);
- void setMaxProcessSize(size_t samples);
-
- size_t getSamplesRequired() const;
-
- void study(const float *const *input, size_t samples, bool final);
- void process(const float *const *input, size_t samples, bool final);
-
- int available() const;
- size_t retrieve(float *const *output, size_t samples) const;
-
- float getFrequencyCutoff(int n) const;
- void setFrequencyCutoff(int n, float f);
-
- size_t getInputIncrement() const {
- return m_increment;
- }
-
- std::vector<int> getOutputIncrements() const;
- std::vector<float> getPhaseResetCurve() const;
- std::vector<int> getExactTimePoints() const;
-
- size_t getChannelCount() const {
- return m_channels;
- }
-
- void calculateStretch();
-
- void setDebugLevel(int level);
- static void setDefaultDebugLevel(int level) { m_defaultDebugLevel = level; }
-
-protected:
- RubberBandStretcher *m_stretcher;
- size_t m_channels;
-
- size_t consumeChannel(size_t channel, const float *input, size_t samples);
- void processChunks(size_t channel, bool &any, bool &last);
- bool processOneChunk(); // across all channels, for real time use
- bool processChunkForChannel(size_t channel, size_t phaseIncrement,
- size_t shiftIncrement, bool phaseReset);
- bool testInbufReadSpace(size_t channel);
- void calculateIncrements(size_t &phaseIncrement,
- size_t &shiftIncrement, bool &phaseReset);
- bool getIncrements(size_t channel, size_t &phaseIncrement,
- size_t &shiftIncrement, bool &phaseReset);
- void analyseChunk(size_t channel);
- void modifyChunk(size_t channel, size_t outputIncrement, bool phaseReset);
- void synthesiseChunk(size_t channel);
- void writeChunk(size_t channel, size_t shiftIncrement, bool last);
-
- void calculateSizes();
- void configure();
- void reconfigure();
-
- double getEffectiveRatio() const;
-
- size_t roundUp(size_t value); // to next power of two
-
- double m_timeRatio;
- double m_pitchScale;
-
- size_t m_windowSize;
- size_t m_increment;
- size_t m_outbufSize;
-
- size_t m_maxProcessSize;
- size_t m_expectedInputDuration;
-
- bool m_threaded;
- bool m_realtime;
- Options m_options;
- int m_debugLevel;
-
- enum ProcessMode {
- JustCreated,
- Studying,
- Processing,
- Finished
- };
-
- ProcessMode m_mode;
-
- std::map<size_t, Window<float> *> m_windows;
- Window<float> *m_window;
- FFT *m_studyFFT;
-
- Condition m_spaceAvailable;
-
- class ProcessThread : public Thread
- {
- public:
- ProcessThread(Impl *s, size_t c);
- void run();
- void signalDataAvailable();
- void abandon();
- private:
- Impl *m_s;
- size_t m_channel;
- Condition m_dataAvailable;
- bool m_abandoning;
- };
-
- mutable Mutex m_threadSetMutex;
- typedef std::set<ProcessThread *> ThreadSet;
- ThreadSet m_threadSet;
-
-
- size_t m_inputDuration;
- std::vector<float> m_phaseResetDf;
- std::vector<float> m_stretchDf;
-
- class ChannelData;
- std::vector<ChannelData *> m_channelData;
-
- std::vector<int> m_outputIncrements;
-
- mutable RingBuffer<int> m_lastProcessOutputIncrements;
- mutable RingBuffer<float> m_lastProcessPhaseResetDf;
-
- AudioCurve *m_phaseResetAudioCurve;
- AudioCurve *m_stretchAudioCurve;
- StretchCalculator *m_stretchCalculator;
-
- float m_freq0;
- float m_freq1;
- float m_freq2;
-
- size_t m_baseWindowSize;
- float m_rateMultiple;
-
- void writeOutput(RingBuffer<float> &to, float *from,
- size_t qty, size_t &outCount, size_t theoreticalOut);
-
- static int m_defaultDebugLevel;
- static const size_t m_defaultIncrement;
- static const size_t m_defaultWindowSize;
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "StretcherImpl.h"
-#include "PercussiveAudioCurve.h"
-#include "HighFrequencyAudioCurve.h"
-#include "ConstantAudioCurve.h"
-#include "StretchCalculator.h"
-#include "StretcherChannelData.h"
-#include "Resampler.h"
-
-#include <cassert>
-#include <cmath>
-#include <set>
-#include <map>
-
-using std::cerr;
-using std::endl;
-
-namespace RubberBand {
-
-RubberBandStretcher::Impl::ProcessThread::ProcessThread(Impl *s, size_t c) :
- m_s(s),
- m_channel(c),
- m_dataAvailable(std::string("data ") + char('A' + c)),
- m_abandoning(false)
-{ }
-
-void
-RubberBandStretcher::Impl::ProcessThread::run()
-{
- if (m_s->m_debugLevel > 1) {
- cerr << "thread " << m_channel << " getting going" << endl;
- }
-
- ChannelData &cd = *m_s->m_channelData[m_channel];
-
- while (cd.inputSize == -1 ||
- cd.inbuf->getReadSpace() > 0) {
-
-// if (cd.inputSize != -1) {
-// cerr << "inputSize == " << cd.inputSize
-// << ", readSpace == " << cd.inbuf->getReadSpace() << endl;
-// }
-
- bool any = false, last = false;
- m_s->processChunks(m_channel, any, last);
-
- if (last) break;
-
- if (any) m_s->m_spaceAvailable.signal();
-
- m_dataAvailable.lock();
- if (!m_s->testInbufReadSpace(m_channel) && !m_abandoning) {
- m_dataAvailable.wait();
- } else {
- m_dataAvailable.unlock();
- }
-
- if (m_abandoning) {
- if (m_s->m_debugLevel > 1) {
- cerr << "thread " << m_channel << " abandoning" << endl;
- }
- return;
- }
- }
-
- bool any = false, last = false;
- m_s->processChunks(m_channel, any, last);
- m_s->m_spaceAvailable.signal();
-
- if (m_s->m_debugLevel > 1) {
- cerr << "thread " << m_channel << " done" << endl;
- }
-}
-
-void
-RubberBandStretcher::Impl::ProcessThread::signalDataAvailable()
-{
- m_dataAvailable.signal();
-}
-
-void
-RubberBandStretcher::Impl::ProcessThread::abandon()
-{
- m_abandoning = true;
-}
-
-void
-RubberBandStretcher::Impl::processChunks(size_t c, bool &any, bool &last)
-{
- // Process as many chunks as there are available on the input
- // buffer for channel c. This requires that the increments have
- // already been calculated.
-
- ChannelData &cd = *m_channelData[c];
-
- last = false;
- any = false;
-
- while (!last) {
-
- if (!testInbufReadSpace(c)) {
-// cerr << "not enough input" << endl;
- break;
- }
-
- any = true;
-
- if (!cd.draining) {
- size_t got = cd.inbuf->peek(cd.fltbuf, m_windowSize);
- assert(got == m_windowSize || cd.inputSize >= 0);
- cd.inbuf->skip(m_increment);
- analyseChunk(c);
- }
-
- bool phaseReset = false;
- size_t phaseIncrement, shiftIncrement;
- getIncrements(c, phaseIncrement, shiftIncrement, phaseReset);
-
- last = processChunkForChannel(c, phaseIncrement, shiftIncrement, phaseReset);
- cd.chunkCount++;
- if (m_debugLevel > 2) {
- cerr << "channel " << c << ": last = " << last << ", chunkCount = " << cd.chunkCount << endl;
- }
- }
-}
-
-bool
-RubberBandStretcher::Impl::processOneChunk()
-{
- // Process a single chunk for all channels, provided there is
- // enough data on each channel for at least one chunk. This is
- // able to calculate increments as it goes along.
-
- for (size_t c = 0; c < m_channels; ++c) {
- if (!testInbufReadSpace(c)) return false;
- ChannelData &cd = *m_channelData[c];
- if (!cd.draining) {
- size_t got = cd.inbuf->peek(cd.fltbuf, m_windowSize);
- assert(got == m_windowSize || cd.inputSize >= 0);
- cd.inbuf->skip(m_increment);
- analyseChunk(c);
- }
- }
-
- bool phaseReset = false;
- size_t phaseIncrement, shiftIncrement;
- if (!getIncrements(0, phaseIncrement, shiftIncrement, phaseReset)) {
- calculateIncrements(phaseIncrement, shiftIncrement, phaseReset);
- }
-
- bool last = false;
- for (size_t c = 0; c < m_channels; ++c) {
- last = processChunkForChannel(c, phaseIncrement, shiftIncrement, phaseReset);
- m_channelData[c]->chunkCount++;
- }
-
- return last;
-}
-
-bool
-RubberBandStretcher::Impl::testInbufReadSpace(size_t c)
-{
- ChannelData &cd = *m_channelData[c];
- RingBuffer<float> &inbuf = *cd.inbuf;
-
- size_t rs = inbuf.getReadSpace();
-
- if (rs < m_windowSize && !cd.draining) {
-
- if (cd.inputSize == -1) {
-
- // Not all the input data has been written to the inbuf
- // (that's why the input size is not yet set). We can't
- // process, because we don't have a full chunk of data, so
- // our process chunk would contain some empty padding in
- // its input -- and that would give incorrect output, as
- // we know there is more input to come.
-
- if (!m_threaded) {
-// cerr << "WARNING: RubberBandStretcher: read space < chunk size ("
-// << inbuf.getReadSpace() << " < " << m_windowSize
-// << ") when not all input written, on processChunks for channel " << c << endl;
- }
- return false;
- }
-
- if (rs == 0) {
-
- if (m_debugLevel > 1) {
- cerr << "read space = 0, giving up" << endl;
- }
- return false;
-
- } else if (rs < m_windowSize/2) {
-
- if (m_debugLevel > 1) {
- cerr << "read space = " << rs << ", setting draining true" << endl;
- }
-
- cd.draining = true;
- }
- }
-
- return true;
-}
-
-bool
-RubberBandStretcher::Impl::processChunkForChannel(size_t c,
- size_t phaseIncrement,
- size_t shiftIncrement,
- bool phaseReset)
-{
- // Process a single chunk on a single channel. This assumes
- // enough input data is available; caller must have tested this
- // using e.g. testInbufReadSpace first. Return true if this is
- // the last chunk on the channel.
-
- if (phaseReset && (m_debugLevel > 1)) {
- cerr << "processChunkForChannel: phase reset found, incrs "
- << phaseIncrement << ":" << shiftIncrement << endl;
- }
-
- ChannelData &cd = *m_channelData[c];
-
- if (!cd.draining) {
-
- // This is the normal processing case -- draining is only
- // set when all the input has been used and we only need
- // to write from the existing accumulator into the output.
-
- // We know we have enough samples available in m_inbuf --
- // this is usually m_windowSize, but we know that if fewer
- // are available, it's OK to use zeroes for the rest
- // (which the ring buffer will provide) because we've
- // reached the true end of the data.
-
- // We need to peek m_windowSize samples for processing, and
- // then skip m_increment to advance the read pointer.
-
- modifyChunk(c, phaseIncrement, phaseReset);
- synthesiseChunk(c); // reads from cd.mag, cd.phase
-
- if (m_debugLevel > 2) {
- if (phaseReset) {
- for (int i = 0; i < 10; ++i) {
- cd.accumulator[i] = 1.2f - (i % 3) * 1.2f;
- }
- }
- }
- }
-
- bool last = false;
-
- if (cd.draining) {
- if (m_debugLevel > 1) {
- cerr << "draining: accumulator fill = " << cd.accumulatorFill << " (shiftIncrement = " << shiftIncrement << ")" << endl;
- }
- if (shiftIncrement == 0) {
- cerr << "WARNING: draining: shiftIncrement == 0, can't handle that in this context: setting to " << m_increment << endl;
- shiftIncrement = m_increment;
- }
- if (cd.accumulatorFill <= shiftIncrement) {
- if (m_debugLevel > 1) {
- cerr << "reducing shift increment from " << shiftIncrement
- << " to " << cd.accumulatorFill
- << " and marking as last" << endl;
- }
- shiftIncrement = cd.accumulatorFill;
- last = true;
- }
- }
-
- if (m_threaded) {
- size_t required = shiftIncrement;
- if (m_pitchScale != 1.0) {
- required = int(required / m_pitchScale) + 1;
- }
-
- if (cd.outbuf->getWriteSpace() < required) {
- if (m_debugLevel > 0) {
- cerr << "Buffer overrun on output for channel " << c << endl;
- }
-
- //!!! The only correct thing we can do here is resize the
- // buffer. We can't wait for the client thread to read
- // some data out from the buffer so as to make more space,
- // because the client thread is probably stuck in a
- // process() call waiting for us to stow away enough input
- // increments to allow the process() call to complete.
-
- }
- }
-
- writeChunk(c, shiftIncrement, last);
- return last;
-}
-
-void
-RubberBandStretcher::Impl::calculateIncrements(size_t &phaseIncrementRtn,
- size_t &shiftIncrementRtn,
- bool &phaseReset)
-{
-// cerr << "calculateIncrements" << endl;
-
- // Calculate the next upcoming phase and shift increment, on the
- // basis that both channels are in sync. This is in contrast to
- // getIncrements, which requires that all the increments have been
- // calculated in advance but can then return increments
- // corresponding to different chunks in different channels.
-
- // Requires frequency domain representations of channel data in
- // the mag and phase buffers in the channel.
-
- // This function is only used in real-time mode.
-
- phaseIncrementRtn = m_increment;
- shiftIncrementRtn = m_increment;
- phaseReset = false;
-
- if (m_channels == 0) return;
-
- ChannelData &cd = *m_channelData[0];
-
- size_t bc = cd.chunkCount;
- for (size_t c = 1; c < m_channels; ++c) {
- if (m_channelData[c]->chunkCount != bc) {
- cerr << "ERROR: RubberBandStretcher::Impl::calculateIncrements: Channels are not in sync" << endl;
- return;
- }
- }
-
- // Normally we would mix down the time-domain signal and apply a
- // single FFT, or else mix down the Cartesian form of the
- // frequency-domain signal. Both of those would be inefficient
- // from this position. Fortunately, the onset detectors should
- // work reasonably well (maybe even better?) if we just sum the
- // magnitudes of the frequency-domain channel signals and forget
- // about phase entirely. Normally we don't expect the channel
- // phases to cancel each other, and broadband effects will still
- // be apparent.
-
- for (size_t i = 0; i <= m_windowSize/2; ++i) {
- cd.fltbuf[i] = 0.0;
- }
-
- for (size_t c = 0; c < m_channels; ++c) {
- for (size_t i = 0; i <= m_windowSize/2; ++i) {
- cd.fltbuf[i] += m_channelData[c]->mag[i];
- }
- }
-
- float df = m_phaseResetAudioCurve->process(cd.fltbuf, m_increment);
-
- int incr = m_stretchCalculator->calculateSingle
- (getEffectiveRatio(),
- m_inputDuration, //!!! no, totally wrong... fortunately it doesn't matter atm
- df);
-
- m_lastProcessPhaseResetDf.write(&df, 1);
- m_lastProcessOutputIncrements.write(&incr, 1);
-
- if (incr < 0) {
- phaseReset = true;
- incr = -incr;
- }
-
- // The returned increment is the phase increment. The shift
- // increment for one chunk is the same as the phase increment for
- // the following chunk (see comment below). This means we don't
- // actually know the shift increment until we see the following
- // phase increment... which is a bit of a problem.
-
- // This implies we should use this increment for the shift
- // increment, and make the following phase increment the same as
- // it. This means in RT mode we'll be one chunk later with our
- // phase reset than we would be in non-RT mode. The sensitivity
- // of the broadband onset detector may mean that this isn't a
- // problem -- test it and see.
-
- shiftIncrementRtn = incr;
-
- if (cd.prevIncrement == 0) {
- phaseIncrementRtn = shiftIncrementRtn;
- } else {
- phaseIncrementRtn = cd.prevIncrement;
- }
-
- cd.prevIncrement = shiftIncrementRtn;
-}
-
-bool
-RubberBandStretcher::Impl::getIncrements(size_t channel,
- size_t &phaseIncrementRtn,
- size_t &shiftIncrementRtn,
- bool &phaseReset)
-{
- if (channel >= m_channels) {
- phaseIncrementRtn = m_increment;
- shiftIncrementRtn = m_increment;
- phaseReset = false;
- return false;
- }
-
- // There are two relevant output increments here. The first is
- // the phase increment which we use when recalculating the phases
- // for the current chunk; the second is the shift increment used
- // to determine how far to shift the processing buffer after
- // writing the chunk. The shift increment for one chunk is the
- // same as the phase increment for the following chunk.
-
- // When an onset occurs for which we need to reset phases, the
- // increment given will be negative.
-
- // When we reset phases, the previous shift increment (and so
- // current phase increments) must have been m_increment to ensure
- // consistency.
-
- // m_outputIncrements stores phase increments.
-
- ChannelData &cd = *m_channelData[channel];
- bool gotData = true;
-
- if (cd.chunkCount >= m_outputIncrements.size()) {
-// cerr << "WARNING: RubberBandStretcher::Impl::getIncrements:"
-// << " chunk count " << cd.chunkCount << " >= "
-// << m_outputIncrements.size() << endl;
- if (m_outputIncrements.size() == 0) {
- phaseIncrementRtn = m_increment;
- shiftIncrementRtn = m_increment;
- phaseReset = false;
- return false;
- } else {
- cd.chunkCount = m_outputIncrements.size()-1;
- gotData = false;
- }
- }
-
- int phaseIncrement = m_outputIncrements[cd.chunkCount];
-
- int shiftIncrement = phaseIncrement;
- if (cd.chunkCount + 1 < m_outputIncrements.size()) {
- shiftIncrement = m_outputIncrements[cd.chunkCount + 1];
- }
-
- if (phaseIncrement < 0) {
- phaseIncrement = -phaseIncrement;
- phaseReset = true;
- }
-
- if (shiftIncrement < 0) {
- shiftIncrement = -shiftIncrement;
- }
-
- if (shiftIncrement >= int(m_windowSize)) {
- cerr << "*** ERROR: RubberBandStretcher::Impl::processChunks: shiftIncrement " << shiftIncrement << " >= windowSize " << m_windowSize << " at " << cd.chunkCount << " (of " << m_outputIncrements.size() << ")" << endl;
- shiftIncrement = m_windowSize;
- }
-
- phaseIncrementRtn = phaseIncrement;
- shiftIncrementRtn = shiftIncrement;
- if (cd.chunkCount == 0) phaseReset = true; // don't mess with the first chunk
- return gotData;
-}
-
-void
-RubberBandStretcher::Impl::analyseChunk(size_t channel)
-{
- size_t i;
-
- ChannelData &cd = *m_channelData[channel];
-
- // cd.fltbuf is known to contain m_windowSize samples
-
- m_window->cut(cd.fltbuf);
-
- for (i = 0; i < m_windowSize/2; ++i) {
- cd.dblbuf[i] = cd.fltbuf[i + m_windowSize/2];
- cd.dblbuf[i + m_windowSize/2] = cd.fltbuf[i];
- }
-
- cd.fft->forwardPolar(cd.dblbuf, cd.mag, cd.phase);
-}
-
-double mod(double x, double y) { return x - (y * floor(x / y)); }
-double princarg(double a) { return mod(a + M_PI, -2 * M_PI) + M_PI; }
-
-void
-RubberBandStretcher::Impl::modifyChunk(size_t channel, size_t outputIncrement,
- bool phaseReset)
-{
- ChannelData &cd = *m_channelData[channel];
-
- if (phaseReset && m_debugLevel > 1) {
- cerr << "phase reset: leaving phases unmodified" << endl;
- }
-
- size_t count = m_windowSize/2;
- size_t pfp = 0;
- double rate = m_stretcher->m_sampleRate;
-
- if (!(m_options & OptionPhaseIndependent)) {
-
- cd.freqPeak[0] = 0;
-
- float freq0 = m_freq0;
- float freq1 = m_freq1;
- float freq2 = m_freq2;
-
- // As the stretch ratio increases, so the frequency thresholds
- // for phase lamination should increase. Beyond a ratio of
- // about 1.5, the threshold should be about 1200Hz; beyond a
- // ratio of 2, we probably want no lamination to happen at all
- // by default. This calculation aims for more or less that.
- // We only do this if the phase option is OptionPhaseAdaptive
- // (the default), i.e. not Independent or PeakLocked.
-
- if (!(m_options & OptionPhasePeakLocked)) {
- float r = getEffectiveRatio();
- if (r > 1) {
- float rf0 = 600 + (600 * ((r-1)*(r-1)*(r-1)*2));
- float f1ratio = freq1 / freq0;
- float f2ratio = freq2 / freq0;
- freq0 = std::max(freq0, rf0);
- freq1 = freq0 * f1ratio;
- freq2 = freq0 * f2ratio;
- }
- }
-
- size_t limit0 = lrint((freq0 * m_windowSize) / rate);
- size_t limit1 = lrint((freq1 * m_windowSize) / rate);
- size_t limit2 = lrint((freq2 * m_windowSize) / rate);
-
- size_t range = 0;
-
- if (limit1 < limit0) limit1 = limit0;
- if (limit2 < limit1) limit2 = limit1;
-
-// cerr << "limit0 = " << limit0 << " limit1 = " << limit1 << " limit2 = " << limit2 << endl;
-
- int peakCount = 0;
-
- for (size_t i = 0; i <= count; ++i) {
-
- double mag = cd.mag[i];
- bool isPeak = true;
-
- for (size_t j = 1; j <= range; ++j) {
-
- if (mag < cd.mag[i-j]) {
- isPeak = false;
- break;
- }
-
- if (mag < cd.mag[i+j]) {
- isPeak = false;
- break;
- }
- }
-
- if (isPeak) {
-
- // i is a peak bin.
-
- // The previous peak bin was at pfp; make freqPeak entries
- // from pfp to half-way between pfp and i point at pfp, and
- // those from the half-way mark to i point at i.
-
- size_t halfway = (pfp + i) / 2;
- if (halfway == pfp) halfway = pfp + 1;
-
- for (size_t j = pfp + 1; j < halfway; ++j) {
- cd.freqPeak[j] = pfp;
- }
- for (size_t j = halfway; j <= i; ++j) {
- cd.freqPeak[j] = i;
- }
-
- pfp = i;
-
- ++peakCount;
- }
-
- if (i == limit0) range = 1;
- if (i == limit1) range = 2;
- if (i >= limit2) {
- range = 3;
- if (i + range + 1 > count) range = count - i;
- }
- }
-
-// cerr << "peakCount = " << peakCount << endl;
-
- cd.freqPeak[count-1] = count-1;
- cd.freqPeak[count] = count;
- }
-
- double peakInPhase = 0.0;
- double peakOutPhase = 0.0;
- size_t p, pp;
-
- for (size_t i = 0; i <= count; ++i) {
-
- if (m_options & OptionPhaseIndependent) {
- p = i;
- pp = i-1;
- } else {
- p = cd.freqPeak[i];
- pp = cd.freqPeak[i-1];
- }
-
- bool resetThis = phaseReset;
-
- if (m_options & OptionTransientsMixed) {
- size_t low = lrint((150 * m_windowSize) / rate);
- size_t high = lrint((1000 * m_windowSize) / rate);
- if (resetThis) {
- if (i > low && i < high) resetThis = false;
- }
- }
-
- if (!resetThis) {
-
- if (i == 0 || p != pp) {
-
- double omega = (2 * M_PI * m_increment * p) / m_windowSize;
- double expectedPhase = cd.prevPhase[p] + omega;
- double phaseError = princarg(cd.phase[p] - expectedPhase);
- double phaseIncrement = (omega + phaseError) / m_increment;
-
- double unwrappedPhase = cd.unwrappedPhase[p] +
- outputIncrement * phaseIncrement;
-
- cd.prevPhase[p] = cd.phase[p];
- cd.phase[p] = unwrappedPhase;
- cd.unwrappedPhase[p] = unwrappedPhase;
-
- peakInPhase = cd.prevPhase[p];
- peakOutPhase = unwrappedPhase;
- }
-
- if (i != p) {
-
- double diffToPeak = peakInPhase - cd.phase[i];
- double unwrappedPhase = peakOutPhase - diffToPeak;
-
- cd.prevPhase[i] = cd.phase[i];
- cd.phase[i] = unwrappedPhase;
- cd.unwrappedPhase[i] = unwrappedPhase;
- }
-
- } else {
- cd.prevPhase[i] = cd.phase[i];
- cd.unwrappedPhase[i] = cd.phase[i];
- }
- }
-}
-
-void
-RubberBandStretcher::Impl::synthesiseChunk(size_t channel)
-{
- ChannelData &cd = *m_channelData[channel];
-
- cd.fft->inversePolar(cd.mag, cd.phase, cd.dblbuf);
-
- for (size_t i = 0; i < m_windowSize/2; ++i) {
- cd.fltbuf[i] = cd.dblbuf[i + m_windowSize/2];
- cd.fltbuf[i + m_windowSize/2] = cd.dblbuf[i];
- }
-
- // our ffts produced unscaled results
- for (size_t i = 0; i < m_windowSize; ++i) {
- cd.fltbuf[i] = cd.fltbuf[i] / m_windowSize;
- }
-
- m_window->cut(cd.fltbuf);
-
- for (size_t i = 0; i < m_windowSize; ++i) {
- cd.accumulator[i] += cd.fltbuf[i];
- }
-
- cd.accumulatorFill = m_windowSize;
-
- float fixed = m_window->getArea() * 1.5;
-
- for (size_t i = 0; i < m_windowSize; ++i) {
- float val = m_window->getValue(i);
- cd.windowAccumulator[i] += val * fixed;
- }
-}
-
-void
-RubberBandStretcher::Impl::writeChunk(size_t channel, size_t shiftIncrement, bool last)
-{
- ChannelData &cd = *m_channelData[channel];
-
- if (m_debugLevel > 2) {
- cerr << "writeChunk(" << channel << ", " << shiftIncrement << ", " << last << ")" << endl;
- }
-
- for (int i = 0; i < shiftIncrement; ++i) {
- if (cd.windowAccumulator[i] > 0.f) {
- cd.accumulator[i] /= cd.windowAccumulator[i];
- }
- }
-
- // for exact sample scaling (probably not meaningful if we
- // were running in RT mode)
- size_t theoreticalOut = 0;
- if (cd.inputSize >= 0) {
- theoreticalOut = lrint(cd.inputSize * m_timeRatio);
- }
-
- if (m_pitchScale != 1.0 && cd.resampler) {
-
- size_t reqSize = int(ceil(shiftIncrement / m_pitchScale));
- if (reqSize > cd.resamplebufSize) {
- // This shouldn't normally happen -- the buffer is
- // supposed to be initialised with enough space in the
- // first place. But we retain this check in case the
- // pitch scale has changed since then, or the stretch
- // calculator has gone mad, or something.
- cerr << "WARNING: RubberBandStretcher::Impl::writeChunk: resizing resampler buffer from "
- << cd.resamplebufSize << " to " << reqSize << endl;
- cd.resamplebufSize = reqSize;
- if (cd.resamplebuf) delete[] cd.resamplebuf;
- cd.resamplebuf = new float[cd.resamplebufSize];
- }
-
-
- size_t outframes = cd.resampler->resample(&cd.accumulator,
- &cd.resamplebuf,
- shiftIncrement,
- 1.0 / m_pitchScale,
- last);
-
-
- writeOutput(*cd.outbuf, cd.resamplebuf,
- outframes, cd.outCount, theoreticalOut);
-
- } else {
- writeOutput(*cd.outbuf, cd.accumulator,
- shiftIncrement, cd.outCount, theoreticalOut);
- }
-
- for (size_t i = 0; i < m_windowSize - shiftIncrement; ++i) {
- cd.accumulator[i] = cd.accumulator[i + shiftIncrement];
- }
-
- for (size_t i = m_windowSize - shiftIncrement; i < m_windowSize; ++i) {
- cd.accumulator[i] = 0.0f;
- }
-
- for (size_t i = 0; i < m_windowSize - shiftIncrement; ++i) {
- cd.windowAccumulator[i] = cd.windowAccumulator[i + shiftIncrement];
- }
-
- for (size_t i = m_windowSize - shiftIncrement; i < m_windowSize; ++i) {
- cd.windowAccumulator[i] = 0.0f;
- }
-
- if (cd.accumulatorFill > shiftIncrement) {
- cd.accumulatorFill -= shiftIncrement;
- } else {
- cd.accumulatorFill = 0;
- if (cd.draining) {
- if (m_debugLevel > 1) {
- cerr << "RubberBandStretcher::Impl::processChunks: setting outputComplete to true" << endl;
- }
- cd.outputComplete = true;
- }
- }
-}
-
-void
-RubberBandStretcher::Impl::writeOutput(RingBuffer<float> &to, float *from, size_t qty, size_t &outCount, size_t theoreticalOut)
-{
- // In non-RT mode, we don't want to write the first startSkip
- // samples, because the first chunk is centred on the start of the
- // output. In RT mode we didn't apply any pre-padding in
- // configure(), so we don't want to remove any here.
-
- size_t startSkip = 0;
- if (!m_realtime) {
- startSkip = lrintf((m_windowSize/2) / m_pitchScale);
- }
-
- if (outCount > startSkip) {
-
- // this is the normal case
-
- if (theoreticalOut > 0) {
- if (m_debugLevel > 1) {
- cerr << "theoreticalOut = " << theoreticalOut
- << ", outCount = " << outCount
- << ", startSkip = " << startSkip
- << ", qty = " << qty << endl;
- }
- if (outCount - startSkip <= theoreticalOut &&
- outCount - startSkip + qty > theoreticalOut) {
- qty = theoreticalOut - (outCount - startSkip);
- if (m_debugLevel > 1) {
- cerr << "reduce qty to " << qty << endl;
- }
- }
- }
-
- if (m_debugLevel > 2) {
- cerr << "writing " << qty << endl;
- }
-
- size_t written = to.write(from, qty);
-
- if (written < qty) {
- cerr << "WARNING: RubberBandStretcher::Impl::writeOutput: "
- << "Buffer overrun on output: wrote " << written
- << " of " << qty << " samples" << endl;
- }
-
- outCount += written;
- return;
- }
-
- // the rest of this is only used during the first startSkip samples
-
- if (outCount + qty <= startSkip) {
- if (m_debugLevel > 1) {
- cerr << "qty = " << qty << ", startSkip = "
- << startSkip << ", outCount = " << outCount
- << ", discarding" << endl;
- }
- outCount += qty;
- return;
- }
-
- size_t off = startSkip - outCount;
- if (m_debugLevel > 1) {
- cerr << "qty = " << qty << ", startSkip = "
- << startSkip << ", outCount = " << outCount
- << ", writing " << qty - off
- << " from start offset " << off << endl;
- }
- to.write(from + off, qty - off);
- outCount += qty;
-}
-
-int
-RubberBandStretcher::Impl::available() const
-{
- if (m_threaded) {
- MutexLocker locker(&m_threadSetMutex);
- if (m_channelData.empty()) return 0;
- } else {
- if (m_channelData.empty()) return 0;
- }
-
- if (!m_threaded) {
- for (size_t c = 0; c < m_channels; ++c) {
- if (m_channelData[c]->inputSize >= 0) {
-// cerr << "available: m_done true" << endl;
- if (m_channelData[c]->inbuf->getReadSpace() > 0) {
-// cerr << "calling processChunks(" << c << ") from available" << endl;
- //!!! do we ever actually do this? if so, this method should not be const
- // ^^^ yes, we do sometimes -- e.g. when fed a very short file
- bool any = false, last = false;
- ((RubberBandStretcher::Impl *)this)->processChunks(c, any, last);
- }
- }
- }
- }
-
- size_t min = 0;
- bool consumed = true;
- bool haveResamplers = false;
-
- for (size_t i = 0; i < m_channels; ++i) {
- size_t availIn = m_channelData[i]->inbuf->getReadSpace();
- size_t availOut = m_channelData[i]->outbuf->getReadSpace();
- if (m_debugLevel > 2) {
- cerr << "available on channel " << i << ": " << availOut << " (waiting: " << availIn << ")" << endl;
- }
- if (i == 0 || availOut < min) min = availOut;
- if (!m_channelData[i]->outputComplete) consumed = false;
- if (m_channelData[i]->resampler) haveResamplers = true;
- }
-
- if (min == 0 && consumed) return -1;
- if (m_pitchScale == 1.0) return min;
-
- if (haveResamplers) return min; // resampling has already happened
- return int(floor(min / m_pitchScale));
-}
-
-size_t
-RubberBandStretcher::Impl::retrieve(float *const *output, size_t samples) const
-{
- size_t got = samples;
-
- for (size_t c = 0; c < m_channels; ++c) {
- size_t gotHere = m_channelData[c]->outbuf->read(output[c], got);
- if (gotHere < got) {
- if (c > 0) {
- if (m_debugLevel > 0) {
- cerr << "RubberBandStretcher::Impl::retrieve: WARNING: channel imbalance detected" << endl;
- }
- }
- got = gotHere;
- }
- }
-
- return got;
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "Thread.h"
-
-#include <iostream>
-
-#include <sys/time.h>
-#include <time.h>
-
-//#define DEBUG_THREAD 1
-//#define DEBUG_MUTEX 1
-//#define DEBUG_CONDITION 1
-
-using std::cerr;
-using std::endl;
-using std::string;
-
-namespace RubberBand
-{
-
-#ifdef _WIN32
-
-Thread::Thread() :
- m_id(0),
- m_extant(false)
-{
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Created thread object " << this << endl;
-#endif
-}
-
-Thread::~Thread()
-{
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Destroying thread object " << this << ", id " << m_id << endl;
-#endif
- if (m_extant) {
- WaitForSingleObject(m_id, INFINITE);
- }
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Destroyed thread object " << this << endl;
-#endif
-}
-
-void
-Thread::start()
-{
- m_id = CreateThread(NULL, 0, staticRun, this, 0, 0);
- if (!m_id) {
- cerr << "ERROR: thread creation failed" << endl;
- exit(1);
- } else {
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Created thread " << m_id << " for thread object " << this << endl;
-#endif
- m_extant = true;
- }
-}
-
-void
-Thread::wait()
-{
- if (m_extant) {
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Waiting on thread " << m_id << " for thread object " << this << endl;
-#endif
- WaitForSingleObject(m_id, INFINITE);
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Waited on thread " << m_id << " for thread object " << this << endl;
-#endif
- m_extant = false;
- }
-}
-
-Thread::Id
-Thread::id()
-{
- return m_id;
-}
-
-bool
-Thread::threadingAvailable()
-{
- return true;
-}
-
-DWORD
-Thread::staticRun(LPVOID arg)
-{
- Thread *thread = static_cast<Thread *>(arg);
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: " << (void *)GetCurrentThreadId() << ": Running thread " << thread->m_id << " for thread object " << thread << endl;
-#endif
- thread->run();
- return 0;
-}
-
-Mutex::Mutex() :
- m_locked(false)
-{
- m_mutex = CreateMutex(NULL, FALSE, NULL);
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Initialised mutex " << &m_mutex << endl;
-#endif
-}
-
-Mutex::~Mutex()
-{
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Destroying mutex " << &m_mutex << endl;
-#endif
- CloseHandle(m_mutex);
-}
-
-void
-Mutex::lock()
-{
- if (m_locked) {
- cerr << "ERROR: Deadlock on mutex " << &m_mutex << endl;
- }
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Want to lock mutex " << &m_mutex << endl;
-#endif
- WaitForSingleObject(m_mutex, INFINITE);
- m_locked = true;
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Locked mutex " << &m_mutex << endl;
-#endif
-}
-
-void
-Mutex::unlock()
-{
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Unlocking mutex " << &m_mutex << endl;
-#endif
- m_locked = false;
- ReleaseMutex(m_mutex);
-}
-
-bool
-Mutex::trylock()
-{
- DWORD result = WaitForSingleObject(m_mutex, 0);
- if (result == WAIT_TIMEOUT || result == WAIT_FAILED) {
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Mutex " << &m_mutex << " unavailable" << endl;
-#endif
- return false;
- } else {
- m_locked = true;
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)GetCurrentThreadId() << ": Locked mutex " << &m_mutex << " (from trylock)" << endl;
-#endif
- return true;
- }
-}
-
-Condition::Condition(string name) :
- m_name(name),
- m_locked(false)
-{
- m_mutex = CreateMutex(NULL, FALSE, NULL);
- m_condition = CreateEvent(NULL, FALSE, FALSE, NULL);
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Initialised condition " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
-}
-
-Condition::~Condition()
-{
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Destroying condition " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- if (m_locked) ReleaseMutex(m_mutex);
- CloseHandle(m_condition);
- CloseHandle(m_mutex);
-}
-
-void
-Condition::lock()
-{
- if (m_locked) {
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Already locked " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- return;
- }
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Want to lock " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- WaitForSingleObject(m_mutex, INFINITE);
- m_locked = true;
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Locked " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
-}
-
-void
-Condition::unlock()
-{
- if (!m_locked) {
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Not locked " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- return;
- }
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Unlocking " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- m_locked = false;
- ReleaseMutex(m_mutex);
-}
-
-void
-Condition::wait(int us)
-{
- if (!m_locked) lock();
-
- if (us == 0) {
-
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- SignalObjectAndWait(m_mutex, m_condition, INFINITE, FALSE);
- WaitForSingleObject(m_mutex, INFINITE);
-
- } else {
-
- DWORD ms = us / 1000;
- if (us > 0 && ms == 0) ms = 1;
-
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Timed waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- SignalObjectAndWait(m_mutex, m_condition, ms, FALSE);
- WaitForSingleObject(m_mutex, INFINITE);
- }
-
- ReleaseMutex(m_mutex);
-
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Wait done on " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- m_locked = false;
-}
-
-void
-Condition::signal()
-{
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)GetCurrentThreadId() << ": Signalling " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- SetEvent(m_condition);
-}
-
-#else /* !_WIN32 */
-
-
-Thread::Thread() :
- m_id(0),
- m_extant(false)
-{
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Created thread object " << this << endl;
-#endif
-}
-
-Thread::~Thread()
-{
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Destroying thread object " << this << ", id " << m_id << endl;
-#endif
- if (m_extant) {
- pthread_join(m_id, 0);
- }
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Destroyed thread object " << this << endl;
-#endif
-}
-
-void
-Thread::start()
-{
- if (pthread_create(&m_id, 0, staticRun, this)) {
- cerr << "ERROR: thread creation failed" << endl;
- exit(1);
- } else {
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Created thread " << m_id << " for thread object " << this << endl;
-#endif
- m_extant = true;
- }
-}
-
-void
-Thread::wait()
-{
- if (m_extant) {
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Waiting on thread " << m_id << " for thread object " << this << endl;
-#endif
- pthread_join(m_id, 0);
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: Waited on thread " << m_id << " for thread object " << this << endl;
-#endif
- m_extant = false;
- }
-}
-
-Thread::Id
-Thread::id()
-{
- return m_id;
-}
-
-bool
-Thread::threadingAvailable()
-{
- return true;
-}
-
-void *
-Thread::staticRun(void *arg)
-{
- Thread *thread = static_cast<Thread *>(arg);
-#ifdef DEBUG_THREAD
- cerr << "THREAD DEBUG: " << (void *)pthread_self() << ": Running thread " << thread->m_id << " for thread object " << thread << endl;
-#endif
- thread->run();
- return 0;
-}
-
-Mutex::Mutex() :
- m_locked(false)
-{
- pthread_mutex_init(&m_mutex, 0);
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Initialised mutex " << &m_mutex << endl;
-#endif
-}
-
-Mutex::~Mutex()
-{
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Destroying mutex " << &m_mutex << endl;
-#endif
- pthread_mutex_destroy(&m_mutex);
-}
-
-void
-Mutex::lock()
-{
- if (m_locked) {
- cerr << "ERROR: Deadlock on mutex " << &m_mutex << endl;
- }
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Want to lock mutex " << &m_mutex << endl;
-#endif
- pthread_mutex_lock(&m_mutex);
- m_locked = true;
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Locked mutex " << &m_mutex << endl;
-#endif
-}
-
-void
-Mutex::unlock()
-{
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Unlocking mutex " << &m_mutex << endl;
-#endif
- m_locked = false;
- pthread_mutex_unlock(&m_mutex);
-}
-
-bool
-Mutex::trylock()
-{
- if (pthread_mutex_trylock(&m_mutex)) {
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Mutex " << &m_mutex << " unavailable" << endl;
-#endif
- return false;
- } else {
- m_locked = true;
-#ifdef DEBUG_MUTEX
- cerr << "MUTEX DEBUG: " << (void *)pthread_self() << ": Locked mutex " << &m_mutex << " (from trylock)" << endl;
-#endif
- return true;
- }
-}
-
-Condition::Condition(string name) :
- m_locked(false),
- m_name(name)
-{
- pthread_mutex_init(&m_mutex, 0);
- pthread_cond_init(&m_condition, 0);
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Initialised condition " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
-}
-
-Condition::~Condition()
-{
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Destroying condition " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- if (m_locked) pthread_mutex_unlock(&m_mutex);
- pthread_cond_destroy(&m_condition);
- pthread_mutex_destroy(&m_mutex);
-}
-
-void
-Condition::lock()
-{
- if (m_locked) {
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Already locked " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- return;
- }
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Want to lock " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- pthread_mutex_lock(&m_mutex);
- m_locked = true;
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Locked " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
-}
-
-void
-Condition::unlock()
-{
- if (!m_locked) {
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Not locked " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- return;
- }
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Unlocking " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- m_locked = false;
- pthread_mutex_unlock(&m_mutex);
-}
-
-void
-Condition::wait(int us)
-{
- if (!m_locked) lock();
-
- if (us == 0) {
-
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- pthread_cond_wait(&m_condition, &m_mutex);
-
- } else {
-
- struct timeval now;
- gettimeofday(&now, 0);
-
- now.tv_usec += us;
- while (now.tv_usec > 1000000) {
- now.tv_usec -= 1000000;
- ++now.tv_sec;
- }
-
- struct timespec timeout;
- timeout.tv_sec = now.tv_sec;
- timeout.tv_nsec = now.tv_usec * 1000;
-
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Timed waiting on " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- pthread_cond_timedwait(&m_condition, &m_mutex, &timeout);
- }
-
- pthread_mutex_unlock(&m_mutex);
-
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Wait done on " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- m_locked = false;
-}
-
-void
-Condition::signal()
-{
-#ifdef DEBUG_CONDITION
- cerr << "CONDITION DEBUG: " << (void *)pthread_self() << ": Signalling " << &m_condition << " \"" << m_name << "\"" << endl;
-#endif
- pthread_cond_signal(&m_condition);
-}
-
-#endif /* !_WIN32 */
-
-MutexLocker::MutexLocker(Mutex *mutex) :
- m_mutex(mutex)
-{
- if (m_mutex) {
- m_mutex->lock();
- }
-}
-
-MutexLocker::~MutexLocker()
-{
- if (m_mutex) {
- m_mutex->unlock();
- }
-}
-
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_THREAD_H_
-#define _RUBBERBAND_THREAD_H_
-
-#ifdef _WIN32
-#include <windows.h>
-#else /* !_WIN32 */
-#include <pthread.h>
-#endif /* !_WIN32 */
-
-#include <string>
-
-namespace RubberBand
-{
-
-class Thread
-{
-public:
-#ifdef _WIN32
- typedef HANDLE Id;
-#else
- typedef pthread_t Id;
-#endif
-
- Thread();
- virtual ~Thread();
-
- Id id();
-
- void start();
- void wait();
-
- static bool threadingAvailable();
-
-protected:
- virtual void run() = 0;
-
-private:
-#ifdef _WIN32
- HANDLE m_id;
- bool m_extant;
- static DWORD WINAPI staticRun(LPVOID lpParam);
-#else
- pthread_t m_id;
- bool m_extant;
- static void *staticRun(void *);
-#endif
-};
-
-class Mutex
-{
-public:
- Mutex();
- ~Mutex();
-
- void lock();
- void unlock();
- bool trylock();
-
-private:
-#ifdef _WIN32
- HANDLE m_mutex;
- bool m_locked;
-#else
- pthread_mutex_t m_mutex;
- bool m_locked;
-#endif
-};
-
-class MutexLocker
-{
-public:
- MutexLocker(Mutex *);
- ~MutexLocker();
-
-private:
- Mutex *m_mutex;
-};
-
-class Condition
-{
-public:
- Condition(std::string name);
- ~Condition();
-
- // To wait on a condition, either simply call wait(), or call
- // lock() and then wait() (perhaps testing some state in between).
- // To signal a condition, call signal().
-
- // Although any thread may signal on a given condition, only one
- // thread should ever wait on any given condition object --
- // otherwise there will be a race conditions in the logic that
- // avoids the thread code having to track whether the condition's
- // mutex is locked or not. If that is your requirement, this
- // Condition wrapper is not for you.
- void lock();
- void unlock();
- void wait(int us = 0);
-
- void signal();
-
-private:
-#ifdef _WIN32
- HANDLE m_mutex;
- bool m_locked;
- HANDLE m_condition;
- std::string m_name;
-#else
- pthread_mutex_t m_mutex;
- bool m_locked;
- pthread_cond_t m_condition;
- std::string m_name;
-#endif
-};
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_WINDOW_H_
-#define _RUBBERBAND_WINDOW_H_
-
-#include <cmath>
-#include <iostream>
-#include <map>
-
-namespace RubberBand {
-
-enum WindowType {
- RectangularWindow,
- BartlettWindow,
- HammingWindow,
- HanningWindow,
- BlackmanWindow,
- GaussianWindow,
- ParzenWindow,
- NuttallWindow,
- BlackmanHarrisWindow
-};
-
-template <typename T>
-class Window
-{
-public:
- /**
- * Construct a windower of the given type.
- */
- Window(WindowType type, size_t size) : m_type(type), m_size(size) { encache(); }
- Window(const Window &w) : m_type(w.m_type), m_size(w.m_size) { encache(); }
- Window &operator=(const Window &w) {
- if (&w == this) return *this;
- m_type = w.m_type;
- m_size = w.m_size;
- encache();
- return *this;
- }
- virtual ~Window() { delete[] m_cache; }
-
- void cut(T *src) const { cut(src, src); }
- void cut(T *src, T *dst) const {
- for (size_t i = 0; i < m_size; ++i) dst[i] = src[i] * m_cache[i];
- }
-
- T getArea() { return m_area; }
- T getValue(size_t i) { return m_cache[i]; }
-
- WindowType getType() const { return m_type; }
- size_t getSize() const { return m_size; }
-
-protected:
- WindowType m_type;
- size_t m_size;
- T *m_cache;
- T m_area;
-
- void encache();
- void cosinewin(T *, T, T, T, T);
-};
-
-template <typename T>
-void Window<T>::encache()
-{
- int n = int(m_size);
- T *mult = new T[n];
- int i;
- for (i = 0; i < n; ++i) mult[i] = 1.0;
-
- switch (m_type) {
-
- case RectangularWindow:
- for (i = 0; i < n; ++i) {
- mult[i] *= 0.5;
- }
- break;
-
- case BartlettWindow:
- for (i = 0; i < n/2; ++i) {
- mult[i] *= (i / T(n/2));
- mult[i + n/2] *= (1.0 - (i / T(n/2)));
- }
- break;
-
- case HammingWindow:
- cosinewin(mult, 0.54, 0.46, 0.0, 0.0);
- break;
-
- case HanningWindow:
- cosinewin(mult, 0.50, 0.50, 0.0, 0.0);
- break;
-
- case BlackmanWindow:
- cosinewin(mult, 0.42, 0.50, 0.08, 0.0);
- break;
-
- case GaussianWindow:
- for (i = 0; i < n; ++i) {
- mult[i] *= pow(2, - pow((i - (n-1)/2.0) / ((n-1)/2.0 / 3), 2));
- }
- break;
-
- case ParzenWindow:
- {
- int N = n-1;
- for (i = 0; i < N/4; ++i) {
- T m = 2 * pow(1.0 - (T(N)/2 - i) / (T(N)/2), 3);
- mult[i] *= m;
- mult[N-i] *= m;
- }
- for (i = N/4; i <= N/2; ++i) {
- int wn = i - N/2;
- T m = 1.0 - 6 * pow(wn / (T(N)/2), 2) * (1.0 - abs(wn) / (T(N)/2));
- mult[i] *= m;
- mult[N-i] *= m;
- }
- break;
- }
-
- case NuttallWindow:
- cosinewin(mult, 0.3635819, 0.4891775, 0.1365995, 0.0106411);
- break;
-
- case BlackmanHarrisWindow:
- cosinewin(mult, 0.35875, 0.48829, 0.14128, 0.01168);
- break;
- }
-
- m_cache = mult;
-
- m_area = 0;
- for (int i = 0; i < n; ++i) {
- m_area += m_cache[i];
- }
- m_area /= n;
-}
-
-template <typename T>
-void Window<T>::cosinewin(T *mult, T a0, T a1, T a2, T a3)
-{
- int n = int(m_size);
- for (int i = 0; i < n; ++i) {
- mult[i] *= (a0
- - a1 * cos(2 * M_PI * i / n)
- + a2 * cos(4 * M_PI * i / n)
- - a3 * cos(6 * M_PI * i / n));
- }
-}
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "RubberBandPitchShifter.h"
-
-#include "RubberBandStretcher.h"
-
-#include <iostream>
-#include <cmath>
-
-using namespace RubberBand;
-
-const char *const
-RubberBandPitchShifter::portNamesMono[PortCountMono] =
-{
- "_latency",
- "Cents",
- "Semitones",
- "Octaves",
- "Crispness",
- "Input",
- "Output"
-};
-
-const char *const
-RubberBandPitchShifter::portNamesStereo[PortCountStereo] =
-{
- "_latency",
- "Cents",
- "Semitones",
- "Octaves",
- "Crispness",
- "Input L",
- "Output L",
- "Input R",
- "Output R"
-};
-
-const LADSPA_PortDescriptor
-RubberBandPitchShifter::portsMono[PortCountMono] =
-{
- LADSPA_PORT_OUTPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
- LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO
-};
-
-const LADSPA_PortDescriptor
-RubberBandPitchShifter::portsStereo[PortCountStereo] =
-{
- LADSPA_PORT_OUTPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
- LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
- LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
- LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
- LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO
-};
-
-const LADSPA_PortRangeHint
-RubberBandPitchShifter::hintsMono[PortCountMono] =
-{
- { 0, 0, 0 },
- { LADSPA_HINT_DEFAULT_0 |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE,
- -100.0, 100.0 },
- { LADSPA_HINT_DEFAULT_0 |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE |
- LADSPA_HINT_INTEGER,
- -12.0, 12.0 },
- { LADSPA_HINT_DEFAULT_0 |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE |
- LADSPA_HINT_INTEGER,
- -4.0, 4.0 },
- { LADSPA_HINT_DEFAULT_MAXIMUM |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE |
- LADSPA_HINT_INTEGER,
- 0.0, 3.0 },
- { 0, 0, 0 },
- { 0, 0, 0 }
-};
-
-const LADSPA_PortRangeHint
-RubberBandPitchShifter::hintsStereo[PortCountStereo] =
-{
- { 0, 0, 0 },
- { LADSPA_HINT_DEFAULT_0 |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE,
- -100.0, 100.0 },
- { LADSPA_HINT_DEFAULT_0 |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE |
- LADSPA_HINT_INTEGER,
- -12.0, 12.0 },
- { LADSPA_HINT_DEFAULT_0 |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE |
- LADSPA_HINT_INTEGER,
- -4.0, 4.0 },
- { LADSPA_HINT_DEFAULT_MAXIMUM |
- LADSPA_HINT_BOUNDED_BELOW |
- LADSPA_HINT_BOUNDED_ABOVE |
- LADSPA_HINT_INTEGER,
- 0.0, 3.0 },
- { 0, 0, 0 },
- { 0, 0, 0 },
- { 0, 0, 0 },
- { 0, 0, 0 }
-};
-
-const LADSPA_Properties
-RubberBandPitchShifter::properties = LADSPA_PROPERTY_HARD_RT_CAPABLE;
-
-const LADSPA_Descriptor
-RubberBandPitchShifter::ladspaDescriptorMono =
-{
- 2979, // "Unique" ID
- "rubberband-pitchshifter-mono", // Label
- properties,
- "Rubber Band Mono Pitch Shifter", // Name
- "Chris Cannam",
- "GPL",
- PortCountMono,
- portsMono,
- portNamesMono,
- hintsMono,
- 0, // Implementation data
- instantiate,
- connectPort,
- activate,
- run,
- 0, // Run adding
- 0, // Set run adding gain
- deactivate,
- cleanup
-};
-
-const LADSPA_Descriptor
-RubberBandPitchShifter::ladspaDescriptorStereo =
-{
- 9792, // "Unique" ID
- "rubberband-pitchshifter-stereo", // Label
- properties,
- "Rubber Band Stereo Pitch Shifter", // Name
- "Chris Cannam",
- "GPL",
- PortCountStereo,
- portsStereo,
- portNamesStereo,
- hintsStereo,
- 0, // Implementation data
- instantiate,
- connectPort,
- activate,
- run,
- 0, // Run adding
- 0, // Set run adding gain
- deactivate,
- cleanup
-};
-
-const LADSPA_Descriptor *
-RubberBandPitchShifter::getDescriptor(unsigned long index)
-{
- if (index == 0) return &ladspaDescriptorMono;
- if (index == 1) return &ladspaDescriptorStereo;
- else return 0;
-}
-
-RubberBandPitchShifter::RubberBandPitchShifter(int sampleRate, size_t channels) :
- m_latency(0),
- m_cents(0),
- m_semitones(0),
- m_octaves(0),
- m_crispness(0),
- m_ratio(1.0),
- m_prevRatio(1.0),
- m_currentCrispness(-1),
- m_extraLatency(8192), //!!! this should be at least the maximum possible displacement from linear at input rates, divided by the pitch scale factor. It could be very large
- m_stretcher(new RubberBandStretcher
- (sampleRate, channels,
- RubberBandStretcher::OptionProcessRealTime)),
- m_sampleRate(sampleRate),
- m_channels(channels)
-{
- for (size_t c = 0; c < m_channels; ++c) {
- m_input[c] = 0;
- m_output[c] = 0;
- //!!! size must be at least max process size plus m_extraLatency:
- m_outputBuffer[c] = new RingBuffer<float>(8092); //!!!
- m_outputBuffer[c]->zero(m_extraLatency);
- //!!! size must be at least max process size:
- m_scratch[c] = new float[16384];//!!!
- }
-}
-
-RubberBandPitchShifter::~RubberBandPitchShifter()
-{
- delete m_stretcher;
- for (size_t c = 0; c < m_channels; ++c) {
- delete m_outputBuffer[c];
- delete[] m_scratch[c];
- }
-}
-
-LADSPA_Handle
-RubberBandPitchShifter::instantiate(const LADSPA_Descriptor *desc, unsigned long rate)
-{
- if (desc->PortCount == ladspaDescriptorMono.PortCount) {
- return new RubberBandPitchShifter(rate, 1);
- } else if (desc->PortCount == ladspaDescriptorStereo.PortCount) {
- return new RubberBandPitchShifter(rate, 2);
- }
- return 0;
-}
-
-void
-RubberBandPitchShifter::connectPort(LADSPA_Handle handle,
- unsigned long port, LADSPA_Data *location)
-{
- RubberBandPitchShifter *shifter = (RubberBandPitchShifter *)handle;
-
- float **ports[PortCountStereo] = {
- &shifter->m_latency,
- &shifter->m_cents,
- &shifter->m_semitones,
- &shifter->m_octaves,
- &shifter->m_crispness,
- &shifter->m_input[0],
- &shifter->m_output[0],
- &shifter->m_input[1],
- &shifter->m_output[1]
- };
-
- *ports[port] = (float *)location;
-}
-
-void
-RubberBandPitchShifter::activate(LADSPA_Handle handle)
-{
- RubberBandPitchShifter *shifter = (RubberBandPitchShifter *)handle;
- shifter->updateRatio();
- shifter->m_prevRatio = shifter->m_ratio;
- shifter->m_stretcher->reset();
- shifter->m_stretcher->setPitchScale(shifter->m_ratio);
-}
-
-void
-RubberBandPitchShifter::run(LADSPA_Handle handle, unsigned long samples)
-{
- RubberBandPitchShifter *shifter = (RubberBandPitchShifter *)handle;
- shifter->runImpl(samples);
-}
-
-void
-RubberBandPitchShifter::updateRatio()
-{
- double oct = *m_octaves;
- oct += *m_semitones / 12;
- oct += *m_cents / 1200;
- m_ratio = pow(2.0, oct);
-}
-
-void
-RubberBandPitchShifter::updateCrispness()
-{
- if (!m_crispness) return;
-
- int c = lrintf(*m_crispness);
- if (c == m_currentCrispness) return;
- if (c < 0 || c > 3) return;
- RubberBandStretcher *s = m_stretcher;
-
- switch (c) {
- case 0:
- s->setPhaseOption(RubberBandStretcher::OptionPhaseIndependent);
- s->setTransientsOption(RubberBandStretcher::OptionTransientsSmooth);
- break;
- case 1:
- s->setPhaseOption(RubberBandStretcher::OptionPhaseAdaptive);
- s->setTransientsOption(RubberBandStretcher::OptionTransientsSmooth);
- break;
- case 2:
- s->setPhaseOption(RubberBandStretcher::OptionPhaseAdaptive);
- s->setTransientsOption(RubberBandStretcher::OptionTransientsMixed);
- break;
- case 3:
- s->setPhaseOption(RubberBandStretcher::OptionPhaseAdaptive);
- s->setTransientsOption(RubberBandStretcher::OptionTransientsCrisp);
- break;
- }
-
- m_currentCrispness = c;
-}
-
-void
-RubberBandPitchShifter::runImpl(unsigned long insamples)
-{
-// std::cerr << "RubberBandPitchShifter::runImpl(" << insamples << ")" << std::endl;
-
- updateRatio();
- if (m_ratio != m_prevRatio) {
- m_stretcher->setPitchScale(m_ratio);
- m_prevRatio = m_ratio;
- }
-
- if (m_latency) {
- *m_latency = m_stretcher->getLatency() + m_extraLatency;
-// std::cerr << "latency = " << *m_latency << std::endl;
- }
-
- updateCrispness();
-
- int samples = insamples;
- int processed = 0;
- size_t outTotal = 0;
-
- float *ptrs[2];
-
- // We have to break up the input into chunks like this because
- // insamples could be arbitrarily large
-
- while (processed < samples) {
-
- //!!! size_t:
- int toCauseProcessing = m_stretcher->getSamplesRequired();
-// std::cout << "to-cause: " << toCauseProcessing << ", remain = " << samples - processed;
- int inchunk = std::min(samples - processed, toCauseProcessing);
- for (size_t c = 0; c < m_channels; ++c) {
- ptrs[c] = &(m_input[c][processed]);
- }
- m_stretcher->process(ptrs, inchunk, false);
- processed += inchunk;
-
- int avail = m_stretcher->available();
- int writable = m_outputBuffer[0]->getWriteSpace();
- int outchunk = std::min(avail, writable);
- size_t actual = m_stretcher->retrieve(m_scratch, outchunk);
- outTotal += actual;
-
-// std::cout << ", avail: " << avail << ", outchunk = " << outchunk;
-// if (actual != outchunk) std::cout << " (" << actual << ")";
-// std::cout << std::endl;
-
- outchunk = actual;
-
- for (size_t c = 0; c < m_channels; ++c) {
- if (int(m_outputBuffer[c]->getWriteSpace()) < outchunk) {
- std::cerr << "RubberBandPitchShifter::runImpl: buffer overrun: chunk = " << outchunk << ", space = " << m_outputBuffer[c]->getWriteSpace() << std::endl;
- }
- m_outputBuffer[c]->write(m_scratch[c], outchunk);
- }
- }
-
-// std::cout << "processed = " << processed << " in, " << outTotal << " out" << ", fill = " << m_outputBuffer[0]->getReadSpace() << " of " << m_outputBuffer[0]->getSize() << std::endl;
-
- for (size_t c = 0; c < m_channels; ++c) {
- int avail = m_outputBuffer[c]->getReadSpace();
-// std::cout << "avail: " << avail << std::endl;
- if (avail < samples && c == 0) {
- std::cerr << "RubberBandPitchShifter::runImpl: buffer underrun: required = " << samples << ", available = " << avail << std::endl;
- }
- int chunk = std::min(avail, samples);
-// std::cout << "out chunk: " << chunk << std::endl;
- m_outputBuffer[c]->read(m_output[c], chunk);
- }
-
- static int minr = -1;
- int avail = m_outputBuffer[0]->getReadSpace();
- if (minr == -1 || (avail >= 0 && avail < minr)) {
- std::cerr << "RubberBandPitchShifter::runImpl: new min remaining " << avail << " from " << minr << std::endl;
- minr = avail;
- }
-}
-
-void
-RubberBandPitchShifter::deactivate(LADSPA_Handle handle)
-{
- activate(handle); // both functions just reset the plugin
-}
-
-void
-RubberBandPitchShifter::cleanup(LADSPA_Handle handle)
-{
- delete (RubberBandPitchShifter *)handle;
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_PITCH_SHIFTER_H_
-#define _RUBBERBAND_PITCH_SHIFTER_H_
-
-#include "ladspa.h"
-
-#include "RingBuffer.h"
-
-namespace RubberBand {
-class RubberBandStretcher;
-}
-
-class RubberBandPitchShifter
-{
-public:
- static const LADSPA_Descriptor *getDescriptor(unsigned long index);
-
-protected:
- RubberBandPitchShifter(int sampleRate, size_t channels);
- ~RubberBandPitchShifter();
-
- enum {
- LatencyPort = 0,
- OctavesPort = 1,
- SemitonesPort = 2,
- CentsPort = 3,
- CrispnessPort = 4,
- InputPort1 = 5,
- OutputPort1 = 6,
- PortCountMono = OutputPort1 + 1,
- InputPort2 = 7,
- OutputPort2 = 8,
- PortCountStereo = OutputPort2 + 1
- };
-
- static const char *const portNamesMono[PortCountMono];
- static const LADSPA_PortDescriptor portsMono[PortCountMono];
- static const LADSPA_PortRangeHint hintsMono[PortCountMono];
-
- static const char *const portNamesStereo[PortCountStereo];
- static const LADSPA_PortDescriptor portsStereo[PortCountStereo];
- static const LADSPA_PortRangeHint hintsStereo[PortCountStereo];
-
- static const LADSPA_Properties properties;
-
- static const LADSPA_Descriptor ladspaDescriptorMono;
- static const LADSPA_Descriptor ladspaDescriptorStereo;
-
- static LADSPA_Handle instantiate(const LADSPA_Descriptor *, unsigned long);
- static void connectPort(LADSPA_Handle, unsigned long, LADSPA_Data *);
- static void activate(LADSPA_Handle);
- static void run(LADSPA_Handle, unsigned long);
- static void deactivate(LADSPA_Handle);
- static void cleanup(LADSPA_Handle);
-
- void runImpl(unsigned long);
- void updateRatio();
- void updateCrispness();
-
- float *m_input[2];
- float *m_output[2];
- float *m_latency;
- float *m_cents;
- float *m_semitones;
- float *m_octaves;
- float *m_crispness;
- double m_ratio;
- double m_prevRatio;
- int m_currentCrispness;
-
- size_t m_extraLatency;
-
- RubberBand::RubberBandStretcher *m_stretcher;
- RubberBand::RingBuffer<float> *m_outputBuffer[2];
- float *m_scratch[2];
-
- int m_sampleRate;
- size_t m_channels;
-};
-
-
-#endif
+++ /dev/null
-ladspa:ladspa-rubberband:rubberband-pitchshifter-mono::Frequency > Pitch shifters
-ladspa:ladspa-rubberband:rubberband-pitchshifter-stereo::Frequency > Pitch shifters
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "RubberBandPitchShifter.h"
-
-#include <stdio.h>
-
-extern "C" {
-
-const LADSPA_Descriptor *ladspa_descriptor(unsigned long index)
-{
- return RubberBandPitchShifter::getDescriptor(index);
-}
-
-}
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "RubberBandStretcher.h"
-
-#include <iostream>
-#include <sndfile.h>
-#include <cmath>
-#include <sys/time.h>
-#include <time.h>
-#include "sysutils.h"
-
-#include <getopt.h>
-
-// for import and export of FFTW wisdom
-#include <fftw3.h>
-
-using namespace std;
-using namespace RubberBand;
-
-#ifdef _WIN32
-using RubberBand::gettimeofday;
-using RubberBand::usleep;
-#endif
-
-int main(int argc, char **argv)
-{
- int c;
-
- double ratio = 1.0;
- double pitchshift = 1.0;
- double frequencyshift = 1.0;
- int debug = 0;
- bool realtime = false;
- bool precise = false;
- int threading = 0;
- bool peaklock = true;
- bool longwin = false;
- bool shortwin = false;
- bool softening = true;
- int crispness = -1;
- bool help = false;
- bool quiet = false;
-
- bool haveRatio = false;
-
- enum {
- NoTransients,
- BandLimitedTransients,
- Transients
- } transients = Transients;
-
- float fthresh0 = -1.f;
- float fthresh1 = -1.f;
- float fthresh2 = -1.f;
-
- while (1) {
- int optionIndex = 0;
-
- static struct option longOpts[] = {
- { "help", 0, 0, 'h' },
- { "time", 1, 0, 't' },
- { "tempo", 1, 0, 'T' },
- { "pitch", 1, 0, 'p' },
- { "frequency", 1, 0, 'f' },
- { "crisp", 1, 0, 'c' },
- { "crispness", 1, 0, 'c' },
- { "debug", 1, 0, 'd' },
- { "realtime", 0, 0, 'R' },
- { "precise", 0, 0, 'P' },
- { "no-threads", 0, 0, '0' },
- { "no-transients", 0, 0, '1' },
- { "no-peaklock", 0, 0, '2' },
- { "window-long", 0, 0, '3' },
- { "window-short", 0, 0, '4' },
- { "thresh0", 1, 0, '5' },
- { "thresh1", 1, 0, '6' },
- { "thresh2", 1, 0, '7' },
- { "bl-transients", 0, 0, '8' },
- { "no-softening", 0, 0, '9' },
- { "threads", 0, 0, '@' },
- { "quiet", 0, 0, 'q' },
- { 0, 0, 0 }
- };
-
- c = getopt_long(argc, argv, "t:p:d:RPc:f:qh", longOpts, &optionIndex);
- if (c == -1) break;
-
- switch (c) {
- case 'h': help = true; break;
- case 't': ratio *= atof(optarg); haveRatio = true; break;
- case 'T': { double m = atof(optarg); if (m != 0.0) ratio /= m; }; haveRatio = true; break;
- case 'p': pitchshift = atof(optarg); haveRatio = true; break;
- case 'f': frequencyshift = atof(optarg); haveRatio = true; break;
- case 'd': debug = atoi(optarg); break;
- case 'R': realtime = true; break;
- case 'P': precise = true; break;
- case '0': threading = 1; break;
- case '@': threading = 2; break;
- case '1': transients = NoTransients; break;
- case '2': peaklock = false; break;
- case '3': longwin = true; break;
- case '4': shortwin = true; break;
- case '5': fthresh0 = atof(optarg); break;
- case '6': fthresh1 = atof(optarg); break;
- case '7': fthresh2 = atof(optarg); break;
- case '8': transients = BandLimitedTransients; break;
- case '9': softening = false; break;
- case 'c': crispness = atoi(optarg); break;
- case 'q': quiet = true; break;
- default: help = true; break;
- }
- }
-
- if (help || !haveRatio || optind + 2 != argc) {
- cerr << endl;
- cerr << "Rubber Band" << endl;
- cerr << "An audio time-stretching and pitch-shifting library and utility program." << endl;
- cerr << "Copyright 2007 Chris Cannam. Distributed under the GNU General Public License." << endl;
- cerr << endl;
- cerr << " Usage: " << argv[0] << " [options] <infile.wav> <outfile.wav>" << endl;
- cerr << endl;
- cerr << "You must specify at least one of the following time and pitch ratio options." << endl;
- cerr << endl;
- cerr << " -t<X>, --time <X> Stretch to X times original duration, or" << endl;
- cerr << " -T<X>, --tempo <X> Change tempo by multiple X (equivalent to --time 1/X)" << endl;
- cerr << endl;
- cerr << " -p<X>, --pitch <X> Raise pitch by X semitones, or" << endl;
- cerr << " -f<X>, --frequency <X> Change frequency by multiple X" << endl;
- cerr << endl;
- cerr << "The following option provides a simple way to adjust the sound. See below" << endl;
- cerr << "for more details." << endl;
- cerr << endl;
- cerr << " -c<N>, --crisp <N> Crispness (N = 0,1,2,3,4,5); default 4 (see below)" << endl;
- cerr << endl;
- cerr << "The remaining options fine-tune the processing mode and stretch algorithm." << endl;
- cerr << "These are mostly included for test purposes; the default settings and standard" << endl;
- cerr << "crispness parameter are intended to provide the best sounding set of options" << endl;
- cerr << "for most situations." << endl;
- cerr << endl;
- cerr << " -P, --precise Aim for minimal time distortion (implied by -R)" << endl;
- cerr << " -R, --realtime Select realtime mode (implies -P --no-threads)" << endl;
- cerr << " --no-threads No extra threads regardless of CPU and channel count" << endl;
- cerr << " --threads Assume multi-CPU even if only one CPU is identified" << endl;
- cerr << " --no-transients Disable phase resynchronisation at transients" << endl;
- cerr << " --bl-transients Band-limit phase resync to extreme frequencies" << endl;
- cerr << " --no-peaklock Disable phase locking to peak frequencies" << endl;
- cerr << " --no-softening Disable large-ratio softening of phase locking" << endl;
- cerr << " --window-long Use longer processing window (actual size may vary)" << endl;
- cerr << " --window-short Use shorter processing window" << endl;
- cerr << " --thresh<N> <F> Set internal freq threshold N (N = 0,1,2) to F Hz" << endl;
- cerr << endl;
- cerr << " -d<N>, --debug <N> Select debug level (N = 0,1,2,3); default 0, full 3" << endl;
- cerr << " (N.B. debug level 3 includes audible ticks in output)" << endl;
- cerr << " -q, --quiet Suppress progress output" << endl;
- cerr << endl;
- cerr << " -h, --help Show this help" << endl;
- cerr << endl;
- cerr << "\"Crispness\" levels:" << endl;
- cerr << " -c 0 equivalent to --no-transients --no-peaklock --window-long" << endl;
- cerr << " -c 1 equivalent to --no-transients --no-peaklock" << endl;
- cerr << " -c 2 equivalent to --no-transients" << endl;
- cerr << " -c 3 equivalent to --bl-transients" << endl;
- cerr << " -c 4 default processing options" << endl;
- cerr << " -c 5 equivalent to --no-peaklock --window-short (may be suitable for drums)" << endl;
- cerr << endl;
- return 2;
- }
-
- switch (crispness) {
- case -1: crispness = 4; break;
- case 0: transients = NoTransients; peaklock = false; longwin = true; shortwin = false; break;
- case 1: transients = NoTransients; peaklock = false; longwin = false; shortwin = false; break;
- case 2: transients = NoTransients; peaklock = true; longwin = false; shortwin = false; break;
- case 3: transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false; break;
- case 4: transients = Transients; peaklock = true; longwin = false; shortwin = false; break;
- case 5: transients = Transients; peaklock = false; longwin = false; shortwin = true; break;
- };
-
- if (!quiet) {
- cerr << "Using crispness level: " << crispness << " (";
- switch (crispness) {
- case 0: cerr << "Mushy"; break;
- case 1: cerr << "Smooth"; break;
- case 2: cerr << "Balanced multitimbral mixture"; break;
- case 3: cerr << "Unpitched percussion with stable notes"; break;
- case 4: cerr << "Crisp monophonic instrumental"; break;
- case 5: cerr << "Unpitched solo percussion"; break;
- }
- cerr << ")" << endl;
- }
-
- char *fileName = strdup(argv[optind++]);
- char *fileNameOut = strdup(argv[optind++]);
-
- SNDFILE *sndfile;
- SNDFILE *sndfileOut;
- SF_INFO sfinfo;
- SF_INFO sfinfoOut;
- memset(&sfinfo, 0, sizeof(SF_INFO));
-
- sndfile = sf_open(fileName, SFM_READ, &sfinfo);
- if (!sndfile) {
- cerr << "ERROR: Failed to open input file \"" << fileName << "\": "
- << sf_strerror(sndfile) << endl;
- return 1;
- }
-
- sfinfoOut.channels = sfinfo.channels;
- sfinfoOut.format = sfinfo.format;
- sfinfoOut.frames = int(sfinfo.frames * ratio + 0.1);
- sfinfoOut.samplerate = sfinfo.samplerate;
- sfinfoOut.sections = sfinfo.sections;
- sfinfoOut.seekable = sfinfo.seekable;
-
- sndfileOut = sf_open(fileNameOut, SFM_WRITE, &sfinfoOut) ;
- if (!sndfileOut) {
- cerr << "ERROR: Failed to open output file \"" << fileName << "\" for writing: "
- << sf_strerror(sndfile) << endl;
- return 1;
- }
-
- int ibs = 1024;
- size_t channels = sfinfo.channels;
-
- RubberBandStretcher::Options options = 0;
- if (realtime) options |= RubberBandStretcher::OptionProcessRealTime;
- if (precise) options |= RubberBandStretcher::OptionStretchPrecise;
- if (!peaklock) options |= RubberBandStretcher::OptionPhaseIndependent;
- if (!softening) options |= RubberBandStretcher::OptionPhasePeakLocked;
- if (longwin) options |= RubberBandStretcher::OptionWindowLong;
- if (shortwin) options |= RubberBandStretcher::OptionWindowShort;
-
- switch (threading) {
- case 0:
- options |= RubberBandStretcher::OptionThreadingAuto;
- break;
- case 1:
- options |= RubberBandStretcher::OptionThreadingNever;
- break;
- case 2:
- options |= RubberBandStretcher::OptionThreadingAlways;
- break;
- }
-
- switch (transients) {
- case NoTransients:
- options |= RubberBandStretcher::OptionTransientsSmooth;
- break;
- case BandLimitedTransients:
- options |= RubberBandStretcher::OptionTransientsMixed;
- break;
- case Transients:
- options |= RubberBandStretcher::OptionTransientsCrisp;
- break;
- }
-
- if (pitchshift != 1.0) {
- frequencyshift *= pow(2.0, pitchshift / 12);
- }
-
-#ifdef _WIN32
- RubberBand::
-#endif
- timeval tv;
- (void)gettimeofday(&tv, 0);
-
- RubberBandStretcher::setDefaultDebugLevel(debug);
-
- RubberBandStretcher ts(sfinfo.samplerate, channels, options,
- ratio, frequencyshift);
-
- ts.setExpectedInputDuration(sfinfo.frames);
-
- float *fbuf = new float[channels * ibs];
- float **ibuf = new float *[channels];
- for (size_t i = 0; i < channels; ++i) ibuf[i] = new float[ibs];
-
- int frame = 0;
- int percent = 0;
-
- sf_seek(sndfile, 0, SEEK_SET);
-
- if (!realtime) {
-
- if (!quiet) {
- cerr << "Pass 1: Studying..." << endl;
- }
-
- while (frame < sfinfo.frames) {
-
- int count = -1;
-
- if ((count = sf_readf_float(sndfile, fbuf, ibs)) <= 0) break;
-
- for (size_t c = 0; c < channels; ++c) {
- for (int i = 0; i < count; ++i) {
- float value = fbuf[i * channels + c];
- ibuf[c][i] = value;
- }
- }
-
- bool final = (frame + ibs >= sfinfo.frames);
-
- ts.study(ibuf, count, final);
-
- int p = int((double(frame) * 100.0) / sfinfo.frames);
- if (p > percent || frame == 0) {
- percent = p;
- if (!quiet) {
- cerr << "\r" << percent << "% ";
- }
- }
-
- frame += ibs;
- }
-
- if (!quiet) {
- cerr << "\rCalculating profile..." << endl;
- }
-
- sf_seek(sndfile, 0, SEEK_SET);
- }
-
- frame = 0;
- percent = 0;
-
- size_t countIn = 0, countOut = 0;
-
- while (frame < sfinfo.frames) {
-
- int count = -1;
-
- if ((count = sf_readf_float(sndfile, fbuf, ibs)) < 0) break;
-
- countIn += count;
-
- for (size_t c = 0; c < channels; ++c) {
- for (int i = 0; i < count; ++i) {
- float value = fbuf[i * channels + c];
- ibuf[c][i] = value;
- }
- }
-
- bool final = (frame + ibs >= sfinfo.frames);
-
- ts.process(ibuf, count, final);
-
- int avail = ts.available();
- if (debug > 1) cerr << "available = " << avail << endl;
-
- if (avail > 0) {
- float **obf = new float *[channels];
- for (size_t i = 0; i < channels; ++i) {
- obf[i] = new float[avail];
- }
- ts.retrieve(obf, avail);
- countOut += avail;
- float *fobf = new float[channels * avail];
- for (size_t c = 0; c < channels; ++c) {
- for (int i = 0; i < avail; ++i) {
- float value = obf[c][i];
- if (value > 1.f) value = 1.f;
- if (value < -1.f) value = -1.f;
- fobf[i * channels + c] = value;
- }
- }
-// cout << "fobf mean: ";
-// double d = 0;
-// for (int i = 0; i < avail; ++i) {
-// d += fobf[i];
-// }
-// d /= avail;
-// cout << d << endl;
- sf_writef_float(sndfileOut, fobf, avail);
- delete[] fobf;
- for (size_t i = 0; i < channels; ++i) {
- delete[] obf[i];
- }
- delete[] obf;
- }
-
- if (frame == 0 && !realtime && !quiet) {
- cerr << "Pass 2: Processing..." << endl;
- }
-
- int p = int((double(frame) * 100.0) / sfinfo.frames);
- if (p > percent || frame == 0) {
- percent = p;
- if (!quiet) {
- cerr << "\r" << percent << "% ";
- }
- }
-
- frame += ibs;
- }
-
- if (!quiet) {
- cerr << "\r " << endl;
- }
- int avail;
-
- while ((avail = ts.available()) >= 0) {
-
- if (debug > 1) {
- cerr << "(completing) available = " << avail << endl;
- }
-
- if (avail > 0) {
- float **obf = new float *[channels];
- for (size_t i = 0; i < channels; ++i) {
- obf[i] = new float[avail];
- }
- ts.retrieve(obf, avail);
- countOut += avail;
- float *fobf = new float[channels * avail];
- for (size_t c = 0; c < channels; ++c) {
- for (int i = 0; i < avail; ++i) {
- float value = obf[c][i];
- if (value > 1.f) value = 1.f;
- if (value < -1.f) value = -1.f;
- fobf[i * channels + c] = value;
- }
- }
-
- sf_writef_float(sndfileOut, fobf, avail);
- delete[] fobf;
- for (size_t i = 0; i < channels; ++i) {
- delete[] obf[i];
- }
- delete[] obf;
- } else {
- usleep(10000);
- }
- }
-
- sf_close(sndfile);
- sf_close(sndfileOut);
-
- if (!quiet) {
-
- cerr << "in: " << countIn << ", out: " << countOut << ", ratio: " << float(countOut)/float(countIn) << ", ideal output: " << lrint(countIn * ratio) << ", error: " << abs(lrint(countIn * ratio) - int(countOut)) << endl;
-
-#ifdef _WIN32
- RubberBand::
-#endif
- timeval etv;
- (void)gettimeofday(&etv, 0);
-
- etv.tv_sec -= tv.tv_sec;
- if (etv.tv_usec < tv.tv_usec) {
- etv.tv_usec += 1000000;
- etv.tv_sec -= 1;
- }
- etv.tv_usec -= tv.tv_usec;
-
- double sec = double(etv.tv_sec) + (double(etv.tv_usec) / 1000000.0);
- cerr << "elapsed time: " << sec << " sec, in frames/sec: " << countIn/sec << ", out frames/sec: " << countOut/sec << endl;
- }
-
- return 0;
-}
-
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "sysutils.h"
-
-#ifdef _WIN32
-#include <windows.h>
-#else /* !_WIN32 */
-#ifdef __APPLE__
-#include <sys/sysctl.h>
-#else /* !__APPLE__, !_WIN32 */
-#include <stdio.h>
-#include <string.h>
-#endif /* !__APPLE__, !_WIN32 */
-#endif /* !_WIN32 */
-
-#include <iostream>
-
-namespace RubberBand {
-
-bool
-system_is_multiprocessor()
-{
- static bool tested = false, mp = false;
-
- if (tested) return mp;
- int count = 0;
-
-#ifdef _WIN32
-
- SYSTEM_INFO sysinfo;
- GetSystemInfo(&sysinfo);
- count = sysinfo.dwNumberOfProcessors;
-
-#else /* !_WIN32 */
-#ifdef __APPLE__
-
- size_t sz = sizeof(count);
- if (sysctlbyname("hw.ncpu", &count, &sz, NULL, 0)) {
- mp = false;
- } else {
- mp = (count > 1);
- }
-
-#else /* !__APPLE__, !_WIN32 */
-
- //...
-
- FILE *cpuinfo = fopen("/proc/cpuinfo", "r");
- if (!cpuinfo) return false;
-
- char buf[256];
- while (!feof(cpuinfo)) {
- fgets(buf, 256, cpuinfo);
- if (!strncmp(buf, "processor", 9)) {
- ++count;
- }
- if (count > 1) break;
- }
-
- fclose(cpuinfo);
-
-#endif /* !__APPLE__, !_WIN32 */
-#endif /* !_WIN32 */
-
- mp = (count > 1);
- tested = true;
- return mp;
-}
-
-#ifdef _WIN32
-
-void gettimeofday(struct timeval *tv, void *tz)
-{
- union {
- long long ns100;
- FILETIME ft;
- } now;
-
- ::GetSystemTimeAsFileTime(&now.ft);
- tv->tv_usec = (long)((now.ns100 / 10LL) % 1000000LL);
- tv->tv_sec = (long)((now.ns100 - 116444736000000000LL) / 10000000LL);
-}
-
-void usleep(unsigned long usec)
-{
- ::Sleep(usec == 0 ? 0 : usec < 1000 ? 1 : usec / 1000);
-}
-
-#endif
-
-}
-
-
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_SYSINFO_H_
-#define _RUBBERBAND_SYSINFO_H_
-
-namespace RubberBand {
-
-extern bool system_is_multiprocessor();
-
-#ifdef _WIN32
-struct timeval { long tv_sec; long tv_usec; };
-void gettimeofday(struct timeval *p, void *tz);
-void usleep(unsigned long);
-#endif
-
-}
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include "RubberBandVampPlugin.h"
-
-#include "StretchCalculator.h"
-
-#include <cmath>
-
-using std::string;
-using std::vector;
-using std::cerr;
-using std::endl;
-
-class RubberBandVampPlugin::Impl
-{
-public:
- size_t m_stepSize;
- size_t m_blockSize;
- size_t m_sampleRate;
-
- float m_timeRatio;
- float m_pitchRatio;
-
- bool m_realtime;
- bool m_elasticTiming;
- int m_transientMode;
- bool m_phaseIndependent;
- int m_windowLength;
-
- RubberBand::RubberBandStretcher *m_stretcher;
-
- int m_incrementsOutput;
- int m_aggregateIncrementsOutput;
- int m_divergenceOutput;
- int m_phaseResetDfOutput;
- int m_smoothedPhaseResetDfOutput;
- int m_phaseResetPointsOutput;
- int m_timeSyncPointsOutput;
-
- size_t m_counter;
- size_t m_accumulatedIncrement;
-
- float **m_outputDump;
-
- FeatureSet processOffline(const float *const *inputBuffers,
- Vamp::RealTime timestamp);
-
- FeatureSet getRemainingFeaturesOffline();
-
- FeatureSet processRealTime(const float *const *inputBuffers,
- Vamp::RealTime timestamp);
-
- FeatureSet getRemainingFeaturesRealTime();
-
- FeatureSet createFeatures(size_t inputIncrement,
- std::vector<int> &outputIncrements,
- std::vector<float> &phaseResetDf,
- std::vector<int> &exactPoints,
- std::vector<float> &smoothedDf,
- size_t baseCount,
- bool includeFinal);
-};
-
-
-RubberBandVampPlugin::RubberBandVampPlugin(float inputSampleRate) :
- Plugin(inputSampleRate)
-{
- m_d = new Impl();
- m_d->m_stepSize = 0;
- m_d->m_timeRatio = 1.f;
- m_d->m_pitchRatio = 1.f;
- m_d->m_realtime = false;
- m_d->m_elasticTiming = true;
- m_d->m_transientMode = 0;
- m_d->m_phaseIndependent = false;
- m_d->m_windowLength = 0;
- m_d->m_stretcher = 0;
- m_d->m_sampleRate = lrintf(m_inputSampleRate);
-}
-
-RubberBandVampPlugin::~RubberBandVampPlugin()
-{
- if (m_d->m_outputDump) {
- for (size_t i = 0; i < m_d->m_stretcher->getChannelCount(); ++i) {
- delete[] m_d->m_outputDump[i];
- }
- delete[] m_d->m_outputDump;
- }
- delete m_d->m_stretcher;
- delete m_d;
-}
-
-string
-RubberBandVampPlugin::getIdentifier() const
-{
- return "rubberband";
-}
-
-string
-RubberBandVampPlugin::getName() const
-{
- return "Rubber Band Timestretch Analysis";
-}
-
-string
-RubberBandVampPlugin::getDescription() const
-{
- return "Carry out analysis phases of time stretcher process";
-}
-
-string
-RubberBandVampPlugin::getMaker() const
-{
- return "Rubber Band"; ///!!!
-}
-
-int
-RubberBandVampPlugin::getPluginVersion() const
-{
- return 1;
-}
-
-string
-RubberBandVampPlugin::getCopyright() const
-{
- return "";//!!!
-}
-
-RubberBandVampPlugin::OutputList
-RubberBandVampPlugin::getOutputDescriptors() const
-{
- OutputList list;
-
- size_t rate = 0;
- if (m_d->m_stretcher) {
- rate = lrintf(m_inputSampleRate / m_d->m_stretcher->getInputIncrement());
- }
-
- OutputDescriptor d;
- d.identifier = "increments";
- d.name = "Output Increments";
- d.description = "Output time increment for each input step";
- d.unit = "samples";
- d.hasFixedBinCount = true;
- d.binCount = 1;
- d.hasKnownExtents = false;
- d.isQuantized = true;
- d.quantizeStep = 1.0;
- d.sampleType = OutputDescriptor::VariableSampleRate;
- d.sampleRate = rate;
- m_d->m_incrementsOutput = list.size();
- list.push_back(d);
-
- d.identifier = "aggregate_increments";
- d.name = "Accumulated Output Increments";
- d.description = "Accumulated output time increments";
- d.sampleRate = 0;
- m_d->m_aggregateIncrementsOutput = list.size();
- list.push_back(d);
-
- d.identifier = "divergence";
- d.name = "Divergence from Linear";
- d.description = "Difference between actual output time and the output time for a theoretical linear stretch";
- d.isQuantized = false;
- d.sampleRate = 0;
- m_d->m_divergenceOutput = list.size();
- list.push_back(d);
-
- d.identifier = "phaseresetdf";
- d.name = "Phase Reset Detection Function";
- d.description = "Curve whose peaks are used to identify transients for phase reset points";
- d.unit = "";
- d.sampleRate = rate;
- m_d->m_phaseResetDfOutput = list.size();
- list.push_back(d);
-
- d.identifier = "smoothedphaseresetdf";
- d.name = "Smoothed Phase Reset Detection Function";
- d.description = "Phase reset curve smoothed for peak picking";
- d.unit = "";
- m_d->m_smoothedPhaseResetDfOutput = list.size();
- list.push_back(d);
-
- d.identifier = "phaseresetpoints";
- d.name = "Phase Reset Points";
- d.description = "Points estimated as transients at which phase reset occurs";
- d.unit = "";
- d.hasFixedBinCount = true;
- d.binCount = 0;
- d.hasKnownExtents = false;
- d.isQuantized = false;
- d.sampleRate = 0;
- m_d->m_phaseResetPointsOutput = list.size();
- list.push_back(d);
-
- d.identifier = "timesyncpoints";
- d.name = "Time Sync Points";
- d.description = "Salient points which stretcher aims to place with strictly correct timing";
- d.unit = "";
- d.hasFixedBinCount = true;
- d.binCount = 0;
- d.hasKnownExtents = false;
- d.isQuantized = false;
- d.sampleRate = 0;
- m_d->m_timeSyncPointsOutput = list.size();
- list.push_back(d);
-
- return list;
-}
-
-RubberBandVampPlugin::ParameterList
-RubberBandVampPlugin::getParameterDescriptors() const
-{
- ParameterList list;
-
- ParameterDescriptor d;
- d.identifier = "timeratio";
- d.name = "Time Ratio";
- d.description = "Ratio to modify overall duration by";
- d.unit = "%";
- d.minValue = 1;
- d.maxValue = 500;
- d.defaultValue = 100;
- d.isQuantized = false;
- list.push_back(d);
-
- d.identifier = "pitchratio";
- d.name = "Pitch Scale Ratio";
- d.description = "Frequency ratio to modify pitch by";
- d.unit = "%";
- d.minValue = 1;
- d.maxValue = 500;
- d.defaultValue = 100;
- d.isQuantized = false;
- list.push_back(d);
-
- d.identifier = "mode";
- d.name = "Processing Mode";
- d.description = ""; //!!!
- d.unit = "";
- d.minValue = 0;
- d.maxValue = 1;
- d.defaultValue = 0;
- d.isQuantized = true;
- d.quantizeStep = 1;
- d.valueNames.clear();
- d.valueNames.push_back("Offline");
- d.valueNames.push_back("Real Time");
- list.push_back(d);
-
- d.identifier = "stretchtype";
- d.name = "Stretch Flexibility";
- d.description = ""; //!!!
- d.unit = "";
- d.minValue = 0;
- d.maxValue = 1;
- d.defaultValue = 0;
- d.isQuantized = true;
- d.quantizeStep = 1;
- d.valueNames.clear();
- d.valueNames.push_back("Elastic");
- d.valueNames.push_back("Precise");
- list.push_back(d);
-
- d.identifier = "transientmode";
- d.name = "Transient Handling";
- d.description = ""; //!!!
- d.unit = "";
- d.minValue = 0;
- d.maxValue = 2;
- d.defaultValue = 0;
- d.isQuantized = true;
- d.quantizeStep = 1;
- d.valueNames.clear();
- d.valueNames.push_back("Mixed");
- d.valueNames.push_back("Smooth");
- d.valueNames.push_back("Crisp");
- list.push_back(d);
-
- d.identifier = "phasemode";
- d.name = "Phase Handling";
- d.description = ""; //!!!
- d.unit = "";
- d.minValue = 0;
- d.maxValue = 1;
- d.defaultValue = 0;
- d.isQuantized = true;
- d.quantizeStep = 1;
- d.valueNames.clear();
- d.valueNames.push_back("Peak Locked");
- d.valueNames.push_back("Independent");
- list.push_back(d);
-
- d.identifier = "windowmode";
- d.name = "Window Length";
- d.description = ""; //!!!
- d.unit = "";
- d.minValue = 0;
- d.maxValue = 2;
- d.defaultValue = 0;
- d.isQuantized = true;
- d.quantizeStep = 1;
- d.valueNames.clear();
- d.valueNames.push_back("Standard");
- d.valueNames.push_back("Short");
- d.valueNames.push_back("Long");
- list.push_back(d);
-
- return list;
-}
-
-float
-RubberBandVampPlugin::getParameter(std::string id) const
-{
- if (id == "timeratio") return m_d->m_timeRatio * 100.f;
- if (id == "pitchratio") return m_d->m_pitchRatio * 100.f;
- if (id == "mode") return m_d->m_realtime ? 1 : 0;
- if (id == "stretchtype") return m_d->m_elasticTiming ? 0 : 1;
- if (id == "transientmode") return m_d->m_transientMode;
- if (id == "phasemode") return m_d->m_phaseIndependent ? 1 : 0;
- if (id == "windowmode") return m_d->m_windowLength;
- return 0.f;
-}
-
-void
-RubberBandVampPlugin::setParameter(std::string id, float value)
-{
- if (id == "timeratio") {
- m_d->m_timeRatio = value / 100;
- } else if (id == "pitchratio") {
- m_d->m_pitchRatio = value / 100;
- } else {
- bool set = (value > 0.5);
- if (id == "mode") m_d->m_realtime = set;
- else if (id == "stretchtype") m_d->m_elasticTiming = !set;
- else if (id == "transientmode") m_d->m_transientMode = int(value + 0.5);
- else if (id == "phasemode") m_d->m_phaseIndependent = set;
- else if (id == "windowmode") m_d->m_windowLength = int(value + 0.5);
- }
-}
-
-bool
-RubberBandVampPlugin::initialise(size_t channels, size_t stepSize, size_t blockSize)
-{
- if (channels < getMinChannelCount() ||
- channels > getMaxChannelCount()) return false;
-
- m_d->m_stepSize = std::min(stepSize, blockSize);
- m_d->m_blockSize = stepSize;
-
- RubberBand::RubberBandStretcher::Options options = 0;
-
- if (m_d->m_realtime)
- options |= RubberBand::RubberBandStretcher::OptionProcessRealTime;
- else options |= RubberBand::RubberBandStretcher::OptionProcessOffline;
-
- if (m_d->m_elasticTiming)
- options |= RubberBand::RubberBandStretcher::OptionStretchElastic;
- else options |= RubberBand::RubberBandStretcher::OptionStretchPrecise;
-
- if (m_d->m_transientMode == 0)
- options |= RubberBand::RubberBandStretcher::OptionTransientsMixed;
- else if (m_d->m_transientMode == 1)
- options |= RubberBand::RubberBandStretcher::OptionTransientsSmooth;
- else options |= RubberBand::RubberBandStretcher::OptionTransientsCrisp;
-
- if (m_d->m_phaseIndependent)
- options |= RubberBand::RubberBandStretcher::OptionPhaseIndependent;
- else options |= RubberBand::RubberBandStretcher::OptionPhasePeakLocked;
-
- if (m_d->m_windowLength == 0)
- options |= RubberBand::RubberBandStretcher::OptionWindowStandard;
- else if (m_d->m_windowLength == 1)
- options |= RubberBand::RubberBandStretcher::OptionWindowShort;
- else options |= RubberBand::RubberBandStretcher::OptionWindowLong;
-
- delete m_d->m_stretcher;
- m_d->m_stretcher = new RubberBand::RubberBandStretcher
- (m_d->m_sampleRate, channels, options);
- m_d->m_stretcher->setDebugLevel(1);
- m_d->m_stretcher->setTimeRatio(m_d->m_timeRatio);
- m_d->m_stretcher->setPitchScale(m_d->m_pitchRatio);
-
- m_d->m_counter = 0;
- m_d->m_accumulatedIncrement = 0;
-
- m_d->m_outputDump = 0;
-
- return true;
-}
-
-void
-RubberBandVampPlugin::reset()
-{
-// delete m_stretcher; //!!! or just if (m_stretcher) m_stretcher->reset();
-// m_stretcher = new RubberBand::RubberBandStretcher(lrintf(m_inputSampleRate), channels);
- if (m_d->m_stretcher) m_d->m_stretcher->reset();
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::process(const float *const *inputBuffers,
- Vamp::RealTime timestamp)
-{
- if (m_d->m_realtime) {
- return m_d->processRealTime(inputBuffers, timestamp);
- } else {
- return m_d->processOffline(inputBuffers, timestamp);
- }
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::getRemainingFeatures()
-{
- if (m_d->m_realtime) {
- return m_d->getRemainingFeaturesRealTime();
- } else {
- return m_d->getRemainingFeaturesOffline();
- }
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::Impl::processOffline(const float *const *inputBuffers,
- Vamp::RealTime timestamp)
-{
- if (!m_stretcher) {
- cerr << "ERROR: RubberBandVampPlugin::processOffline: "
- << "RubberBandVampPlugin has not been initialised"
- << endl;
- return FeatureSet();
- }
-
- m_stretcher->study(inputBuffers, m_blockSize, false);
- return FeatureSet();
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::Impl::getRemainingFeaturesOffline()
-{
- m_stretcher->study(0, 0, true);
-
- m_stretcher->calculateStretch();
-
- int rate = m_sampleRate;
-
- RubberBand::StretchCalculator sc(rate,
- m_stretcher->getInputIncrement(),
- true);
-
- size_t inputIncrement = m_stretcher->getInputIncrement();
- std::vector<int> outputIncrements = m_stretcher->getOutputIncrements();
- std::vector<float> phaseResetDf = m_stretcher->getPhaseResetCurve();
- std::vector<int> peaks = m_stretcher->getExactTimePoints();
- std::vector<float> smoothedDf = sc.smoothDF(phaseResetDf);
-
- FeatureSet features = createFeatures
- (inputIncrement, outputIncrements, phaseResetDf, peaks, smoothedDf,
- 0, true);
-
- return features;
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::Impl::processRealTime(const float *const *inputBuffers,
- Vamp::RealTime timestamp)
-{
- // This function is not in any way a real-time function (i.e. it
- // has no requirement to be RT safe); it simply operates the
- // stretcher in RT mode.
-
- if (!m_stretcher) {
- cerr << "ERROR: RubberBandVampPlugin::processRealTime: "
- << "RubberBandVampPlugin has not been initialised"
- << endl;
- return FeatureSet();
- }
-
- m_stretcher->process(inputBuffers, m_blockSize, false);
-
- size_t inputIncrement = m_stretcher->getInputIncrement();
- std::vector<int> outputIncrements = m_stretcher->getOutputIncrements();
- std::vector<float> phaseResetDf = m_stretcher->getPhaseResetCurve();
- std::vector<float> smoothedDf; // not meaningful in RT mode
- std::vector<int> dummyPoints;
- FeatureSet features = createFeatures
- (inputIncrement, outputIncrements, phaseResetDf, dummyPoints, smoothedDf,
- m_counter, false);
- m_counter += outputIncrements.size();
-
- int available = 0;
- while ((available = m_stretcher->available()) > 0) {
- if (!m_outputDump) {
- m_outputDump = new float *[m_stretcher->getChannelCount()];
- for (size_t i = 0; i < m_stretcher->getChannelCount(); ++i) {
- m_outputDump[i] = new float[m_blockSize];
- }
- }
- m_stretcher->retrieve(m_outputDump,
- std::min(int(m_blockSize), available));
- }
-
- return features;
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::Impl::getRemainingFeaturesRealTime()
-{
- return FeatureSet();
-}
-
-RubberBandVampPlugin::FeatureSet
-RubberBandVampPlugin::Impl::createFeatures(size_t inputIncrement,
- std::vector<int> &outputIncrements,
- std::vector<float> &phaseResetDf,
- std::vector<int> &exactPoints,
- std::vector<float> &smoothedDf,
- size_t baseCount,
- bool includeFinal)
-{
- size_t actual = m_accumulatedIncrement;
-
- double overallRatio = m_timeRatio * m_pitchRatio;
-
- char label[200];
-
- FeatureSet features;
-
- int rate = m_sampleRate;
-
- size_t epi = 0;
-
- for (size_t i = 0; i < outputIncrements.size(); ++i) {
-
- size_t frame = (baseCount + i) * inputIncrement;
-
- int oi = outputIncrements[i];
- bool hard = false;
- bool soft = false;
-
- if (oi < 0) {
- oi = -oi;
- hard = true;
- }
-
- if (epi < exactPoints.size() && int(i) == exactPoints[epi]) {
- soft = true;
- ++epi;
- }
-
- double linear = (frame * overallRatio);
-
- Vamp::RealTime t = Vamp::RealTime::frame2RealTime(frame, rate);
-
- Feature feature;
- feature.hasTimestamp = true;
- feature.timestamp = t;
- feature.values.push_back(oi);
- feature.label = Vamp::RealTime::frame2RealTime(oi, rate).toText();
- features[m_incrementsOutput].push_back(feature);
-
- feature.values.clear();
- feature.values.push_back(actual);
- feature.label = Vamp::RealTime::frame2RealTime(actual, rate).toText();
- features[m_aggregateIncrementsOutput].push_back(feature);
-
- feature.values.clear();
- feature.values.push_back(actual - linear);
-
- sprintf(label, "expected %ld, actual %ld, difference %ld (%s ms)",
- long(linear), long(actual), long(actual - linear),
- // frame2RealTime expects an integer frame number,
- // hence our multiplication factor
- (Vamp::RealTime::frame2RealTime
- (lrintf((actual - linear) * 1000), rate) / 1000)
- .toText().c_str());
- feature.label = label;
-
- features[m_divergenceOutput].push_back(feature);
- actual += oi;
-
- char buf[30];
-
- if (i < phaseResetDf.size()) {
- feature.values.clear();
- feature.values.push_back(phaseResetDf[i]);
- sprintf(buf, "%d", baseCount + i);
- feature.label = buf;
- features[m_phaseResetDfOutput].push_back(feature);
- }
-
- if (i < smoothedDf.size()) {
- feature.values.clear();
- feature.values.push_back(smoothedDf[i]);
- features[m_smoothedPhaseResetDfOutput].push_back(feature);
- }
-
- if (hard) {
- feature.values.clear();
- feature.label = "Phase Reset";
- features[m_phaseResetPointsOutput].push_back(feature);
- }
-
- if (hard || soft) {
- feature.values.clear();
- feature.label = "Time Sync";
- features[m_timeSyncPointsOutput].push_back(feature);
- }
- }
-
- if (includeFinal) {
- Vamp::RealTime t = Vamp::RealTime::frame2RealTime
- (inputIncrement * (baseCount + outputIncrements.size()), rate);
- Feature feature;
- feature.hasTimestamp = true;
- feature.timestamp = t;
- feature.label = Vamp::RealTime::frame2RealTime(actual, rate).toText();
- feature.values.clear();
- feature.values.push_back(actual);
- features[m_aggregateIncrementsOutput].push_back(feature);
-
- float linear = ((baseCount + outputIncrements.size())
- * inputIncrement * overallRatio);
- feature.values.clear();
- feature.values.push_back(actual - linear);
- feature.label = // see earlier comment
- (Vamp::RealTime::frame2RealTime //!!! update this as earlier label
- (lrintf((actual - linear) * 1000), rate) / 1000)
- .toText();
- features[m_divergenceOutput].push_back(feature);
- }
-
- m_accumulatedIncrement = actual;
-
- return features;
-}
-
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#ifndef _RUBBERBAND_VAMP_PLUGIN_H_
-#define _RUBBERBAND_VAMP_PLUGIN_H_
-
-#include <vamp-sdk/Plugin.h>
-
-#include "RubberBandStretcher.h"
-
-class RubberBandVampPlugin : public Vamp::Plugin
-{
-public:
- RubberBandVampPlugin(float inputSampleRate);
- virtual ~RubberBandVampPlugin();
-
- bool initialise(size_t channels, size_t stepSize, size_t blockSize);
- void reset();
-
- InputDomain getInputDomain() const { return TimeDomain; }
-
- std::string getIdentifier() const;
- std::string getName() const;
- std::string getDescription() const;
- std::string getMaker() const;
- int getPluginVersion() const;
- std::string getCopyright() const;
-
- ParameterList getParameterDescriptors() const;
- float getParameter(std::string id) const;
- void setParameter(std::string id, float value);
-
- OutputList getOutputDescriptors() const;
-
- FeatureSet process(const float *const *inputBuffers,
- Vamp::RealTime timestamp);
-
- FeatureSet getRemainingFeatures();
-
-protected:
- class Impl;
- Impl *m_d;
-};
-
-#endif
+++ /dev/null
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
-
-/*
- Rubber Band
- An audio time-stretching and pitch-shifting library.
- Copyright 2007 Chris Cannam.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version. See the file
- COPYING included with this distribution for more information.
-*/
-
-#include <vamp/vamp.h>
-#include <vamp-sdk/PluginAdapter.h>
-
-#include "RubberBandVampPlugin.h"
-
-static Vamp::PluginAdapter<RubberBandVampPlugin> rubberBandAdapter;
-
-const VampPluginDescriptor *vampGetPluginDescriptor(unsigned int version,
- unsigned int index)
-{
- if (version < 1) return 0;
-
- switch (index) {
- case 0: return rubberBandAdapter.getDescriptor();
- default: return 0;
- }
-}
-
+++ /dev/null
-vamp:vamp-rubberband:rubberband::Time > Timestretch Analysis
+++ /dev/null
-# -*- python -*-
-
-import os
-import os.path
-import glob
-
-rubberband_files = glob.glob ('src/*.cpp')
-
-Import('env install_prefix libraries')
-rb = env.Copy()
-
-rb.Merge ([libraries['fftw3f'],
- libraries['fftw3'],
- libraries['vamp'],
- libraries['samplerate'],
- libraries['sndfile-ardour']
- ])
-
-rb.Append (CPPATH='#libs/rubberband/rubberband', CXXFLAGS="-Ilibs/rubberband/rubberband")
-
-librb = rb.SharedLibrary('rubberband', rubberband_files)
-
-Default(librb)
-
-env.Alias('install', env.Install(os.path.join(install_prefix, env['LIBDIR'], 'ardour2'), librb))
-
-env.Alias('tarball', env.Distribute (env['DISTTREE'],
- [ 'SConscript'] + rubberband_files + glob.glob('src/*.h')))
-
-
projects / ardour.git / commitdiff