2 ** Copyright (C) 2005-2007 Erik de Castro Lopo <erikd@mega-nerd.com>
4 ** All rights reserved.
6 ** Redistribution and use in source and binary forms, with or without
7 ** modification, are permitted provided that the following conditions are
10 ** * Redistributions of source code must retain the above copyright
11 ** notice, this list of conditions and the following disclaimer.
12 ** * Redistributions in binary form must reproduce the above copyright
13 ** notice, this list of conditions and the following disclaimer in
14 ** the documentation and/or other materials provided with the
16 ** * Neither the author nor the names of any contributors may be used
17 ** to endorse or promote products derived from this software without
18 ** specific prior written permission.
20 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24 ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 ** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 ** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27 ** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28 ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29 ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
30 ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 ** The above modified BSD style license (GPL and LGPL compatible) applies to
35 ** this file. It does not apply to libsndfile itself which is released under
36 ** the GNU LGPL or the libsndfile test suite which is released under the GNU
38 ** This means that this header file can be used under this modified BSD style
39 ** license, but the LGPL still holds for the libsndfile library itself.
43 ** sndfile.hh -- A lightweight C++ wrapper for the libsndfile API.
45 ** All the methods are inlines and all functionality is contained in this
46 ** file. There is no separate implementation file.
48 ** API documentation is in the doc/ directory of the source code tarball
49 ** and at http://www.mega-nerd.com/libsndfile/api.html.
55 #include <sys/types.h>
60 #include "pbd/gstdio_compat.h"
65 #include <new> // for std::nothrow
68 namespace AudioGrapher {
73 { SNDFILE_ref (void) ;
84 /* Default constructor */
85 SndfileHandle (void) : p (NULL) {} ;
86 SndfileHandle (const char *path, int mode = SFM_READ,
87 int format = 0, int channels = 0, int samplerate = 0) ;
88 SndfileHandle (std::string const & path, int mode = SFM_READ,
89 int format = 0, int channels = 0, int samplerate = 0) ;
90 SndfileHandle (int fd, bool close_desc, int mode = SFM_READ,
91 int format = 0, int channels = 0, int samplerate = 0) ;
92 ~SndfileHandle (void) ;
94 SndfileHandle (const SndfileHandle &orig) ;
95 SndfileHandle & operator = (const SndfileHandle &rhs) ;
99 /* Mainly for debugging/testing. */
100 int refCount (void) const { return (p == NULL) ? 0 : p->ref ; }
102 operator bool () const { return (p != NULL) ; }
104 bool operator == (const SndfileHandle &rhs) const { return (p == rhs.p) ; }
106 sf_count_t frames (void) const { return p ? p->sfinfo.frames : 0 ; }
107 int format (void) const { return p ? p->sfinfo.format : 0 ; }
108 int channels (void) const { return p ? p->sfinfo.channels : 0 ; }
109 int samplerate (void) const { return p ? p->sfinfo.samplerate : 0 ; }
111 int error (void) const ;
112 const char * strError (void) const ;
114 int command (int cmd, void *data, int datasize) ;
116 sf_count_t seek (sf_count_t frames, int whence) ;
118 void writeSync (void) ;
120 int setString (int str_type, const char* str) ;
122 const char* getString (int str_type) const ;
124 static int formatCheck (int format, int channels, int samplerate) ;
126 sf_count_t read (short *ptr, sf_count_t items) ;
127 sf_count_t read (int *ptr, sf_count_t items) ;
128 sf_count_t read (float *ptr, sf_count_t items) ;
129 sf_count_t read (double *ptr, sf_count_t items) ;
131 sf_count_t write (const short *ptr, sf_count_t items) ;
132 sf_count_t write (const int *ptr, sf_count_t items) ;
133 sf_count_t write (const float *ptr, sf_count_t items) ;
134 sf_count_t write (const double *ptr, sf_count_t items) ;
136 sf_count_t readf (short *ptr, sf_count_t frames) ;
137 sf_count_t readf (int *ptr, sf_count_t frames) ;
138 sf_count_t readf (float *ptr, sf_count_t frames) ;
139 sf_count_t readf (double *ptr, sf_count_t frames) ;
141 sf_count_t writef (const short *ptr, sf_count_t frames) ;
142 sf_count_t writef (const int *ptr, sf_count_t frames) ;
143 sf_count_t writef (const float *ptr, sf_count_t frames) ;
144 sf_count_t writef (const double *ptr, sf_count_t frames) ;
146 sf_count_t readRaw (void *ptr, sf_count_t bytes) ;
147 sf_count_t writeRaw (const void *ptr, sf_count_t bytes) ;
151 /*==============================================================================
152 ** Nothing but implementation below.
156 SndfileHandle::SNDFILE_ref::SNDFILE_ref (void)
161 SndfileHandle::SNDFILE_ref::~SNDFILE_ref (void)
162 { if (sf != NULL) { sf_close (sf) ; } }
166 SndfileHandle::close (void)
168 if (p != NULL && --p->ref == 0)
177 SndfileHandle::SndfileHandle (const char *path, int mode, int fmt, int chans, int srate)
180 p = new (std::nothrow) SNDFILE_ref () ;
185 p->sfinfo.frames = 0 ;
186 p->sfinfo.channels = chans ;
187 p->sfinfo.format = fmt ;
188 p->sfinfo.samplerate = srate ;
189 p->sfinfo.sections = 0 ;
190 p->sfinfo.seekable = 0 ;
192 bool writable = false;
193 if (mode & SFM_WRITE) {
199 #ifdef PLATFORM_WINDOWS
200 int fd = g_open (path, writable ? O_CREAT | O_RDWR : O_RDONLY, writable ? 0644 : 0444);
202 int fd = ::open (path, writable ? O_CREAT | O_RDWR : O_RDONLY, writable ? 0644 : 0444);
205 p->sf = sf_open_fd (fd, mode, &p->sfinfo, true) ;
209 } /* SndfileHandle const char * constructor */
212 SndfileHandle::SndfileHandle (std::string const & path, int mode, int fmt, int chans, int srate)
215 p = new (std::nothrow) SNDFILE_ref () ;
220 p->sfinfo.frames = 0 ;
221 p->sfinfo.channels = chans ;
222 p->sfinfo.format = fmt ;
223 p->sfinfo.samplerate = srate ;
224 p->sfinfo.sections = 0 ;
225 p->sfinfo.seekable = 0 ;
227 bool writable = false;
228 if (mode & SFM_WRITE) {
232 ::g_unlink (path.c_str());
234 #ifdef PLATFORM_WINDOWS
235 int fd = g_open (path.c_str(), writable ? O_CREAT | O_RDWR : O_RDONLY, writable ? 0644 : 0444);
237 int fd = ::open (path.c_str(), writable ? O_CREAT | O_RDWR : O_RDONLY, writable ? 0644 : 0444);
240 p->sf = sf_open_fd (fd, mode, &p->sfinfo, true) ;
244 } /* SndfileHandle std::string constructor */
247 SndfileHandle::SndfileHandle (int fd, bool close_desc, int mode, int fmt, int chans, int srate)
253 p = new (std::nothrow) SNDFILE_ref () ;
258 p->sfinfo.frames = 0 ;
259 p->sfinfo.channels = chans ;
260 p->sfinfo.format = fmt ;
261 p->sfinfo.samplerate = srate ;
262 p->sfinfo.sections = 0 ;
263 p->sfinfo.seekable = 0 ;
265 p->sf = sf_open_fd (fd, mode, &p->sfinfo, close_desc) ;
269 } /* SndfileHandle fd constructor */
272 SndfileHandle::~SndfileHandle (void)
273 { if (p != NULL && --p->ref == 0)
275 } /* SndfileHandle destructor */
279 SndfileHandle::SndfileHandle (const SndfileHandle &orig)
283 } /* SndfileHandle copy constructor */
285 inline SndfileHandle &
286 SndfileHandle::operator = (const SndfileHandle &rhs)
290 if (p != NULL && --p->ref == 0)
298 } /* SndfileHandle assignment operator */
301 SndfileHandle::error (void) const
302 { return sf_error (p->sf) ; }
305 SndfileHandle::strError (void) const
306 { return sf_strerror (p->sf) ; }
309 SndfileHandle::command (int cmd, void *data, int datasize)
310 { return sf_command (p->sf, cmd, data, datasize) ; }
313 SndfileHandle::seek (sf_count_t frame_count, int whence)
314 { return sf_seek (p->sf, frame_count, whence) ; }
317 SndfileHandle::writeSync (void)
318 { sf_write_sync (p->sf) ; }
321 SndfileHandle::setString (int str_type, const char* str)
322 { return sf_set_string (p->sf, str_type, str) ; }
325 SndfileHandle::getString (int str_type) const
326 { return sf_get_string (p->sf, str_type) ; }
329 SndfileHandle::formatCheck(int fmt, int chans, int srate)
334 sfinfo.channels = chans ;
335 sfinfo.format = fmt ;
336 sfinfo.samplerate = srate ;
337 sfinfo.sections = 0 ;
338 sfinfo.seekable = 0 ;
340 return sf_format_check (&sfinfo) ;
343 /*---------------------------------------------------------------------*/
346 SndfileHandle::read (short *ptr, sf_count_t items)
347 { return sf_read_short (p->sf, ptr, items) ; }
350 SndfileHandle::read (int *ptr, sf_count_t items)
351 { return sf_read_int (p->sf, ptr, items) ; }
354 SndfileHandle::read (float *ptr, sf_count_t items)
355 { return sf_read_float (p->sf, ptr, items) ; }
358 SndfileHandle::read (double *ptr, sf_count_t items)
359 { return sf_read_double (p->sf, ptr, items) ; }
362 SndfileHandle::write (const short *ptr, sf_count_t items)
363 { return sf_write_short (p->sf, ptr, items) ; }
366 SndfileHandle::write (const int *ptr, sf_count_t items)
367 { return sf_write_int (p->sf, ptr, items) ; }
370 SndfileHandle::write (const float *ptr, sf_count_t items)
371 { return sf_write_float (p->sf, ptr, items) ; }
374 SndfileHandle::write (const double *ptr, sf_count_t items)
375 { return sf_write_double (p->sf, ptr, items) ; }
378 SndfileHandle::readf (short *ptr, sf_count_t frame_count)
379 { return sf_readf_short (p->sf, ptr, frame_count) ; }
382 SndfileHandle::readf (int *ptr, sf_count_t frame_count)
383 { return sf_readf_int (p->sf, ptr, frame_count) ; }
386 SndfileHandle::readf (float *ptr, sf_count_t frame_count)
387 { return sf_readf_float (p->sf, ptr, frame_count) ; }
390 SndfileHandle::readf (double *ptr, sf_count_t frame_count)
391 { return sf_readf_double (p->sf, ptr, frame_count) ; }
394 SndfileHandle::writef (const short *ptr, sf_count_t frame_count)
395 { return sf_writef_short (p->sf, ptr, frame_count) ; }
398 SndfileHandle::writef (const int *ptr, sf_count_t frame_count)
399 { return sf_writef_int (p->sf, ptr, frame_count) ; }
402 SndfileHandle::writef (const float *ptr, sf_count_t frame_count)
403 { return sf_writef_float (p->sf, ptr, frame_count) ; }
406 SndfileHandle::writef (const double *ptr, sf_count_t frame_count)
407 { return sf_writef_double (p->sf, ptr, frame_count) ; }
410 SndfileHandle::readRaw (void *ptr, sf_count_t bytes)
411 { return sf_read_raw (p->sf, ptr, bytes) ; }
414 SndfileHandle::writeRaw (const void *ptr, sf_count_t bytes)
415 { return sf_write_raw (p->sf, ptr, bytes) ; }
418 #ifdef ENABLE_SNDFILE_WINDOWS_PROTOTYPES
421 SndfileHandle::SndfileHandle (LPCWSTR wpath, int mode, int fmt, int chans, int srate)
424 p = new (std::nothrow) SNDFILE_ref () ;
429 p->sfinfo.frames = 0 ;
430 p->sfinfo.channels = chans ;
431 p->sfinfo.format = fmt ;
432 p->sfinfo.samplerate = srate ;
433 p->sfinfo.sections = 0 ;
434 p->sfinfo.seekable = 0 ;
436 p->sf = sf_wchar_open (wpath, mode, &p->sfinfo) ;
440 } /* SndfileHandle const wchar_t * constructor */
444 } // namespace AudioGrapher
446 #endif /* SNDFILE_HH */