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.
58 #include <new> // for std::nothrow
61 namespace AudioGrapher {
66 { SNDFILE_ref (void) ;
77 /* Default constructor */
78 SndfileHandle (void) : p (NULL) {} ;
79 SndfileHandle (const char *path, int mode = SFM_READ,
80 int format = 0, int channels = 0, int samplerate = 0) ;
81 SndfileHandle (std::string const & path, int mode = SFM_READ,
82 int format = 0, int channels = 0, int samplerate = 0) ;
83 SndfileHandle (int fd, bool close_desc, int mode = SFM_READ,
84 int format = 0, int channels = 0, int samplerate = 0) ;
85 ~SndfileHandle (void) ;
87 SndfileHandle (const SndfileHandle &orig) ;
88 SndfileHandle & operator = (const SndfileHandle &rhs) ;
92 /* Mainly for debugging/testing. */
93 int refCount (void) const { return (p == NULL) ? 0 : p->ref ; }
95 operator bool () const { return (p != NULL) ; }
97 bool operator == (const SndfileHandle &rhs) const { return (p == rhs.p) ; }
99 sf_count_t frames (void) const { return p ? p->sfinfo.frames : 0 ; }
100 int format (void) const { return p ? p->sfinfo.format : 0 ; }
101 int channels (void) const { return p ? p->sfinfo.channels : 0 ; }
102 int samplerate (void) const { return p ? p->sfinfo.samplerate : 0 ; }
104 int error (void) const ;
105 const char * strError (void) const ;
107 int command (int cmd, void *data, int datasize) ;
109 sf_count_t seek (sf_count_t frames, int whence) ;
111 void writeSync (void) ;
113 int setString (int str_type, const char* str) ;
115 const char* getString (int str_type) const ;
117 static int formatCheck (int format, int channels, int samplerate) ;
119 sf_count_t read (short *ptr, sf_count_t items) ;
120 sf_count_t read (int *ptr, sf_count_t items) ;
121 sf_count_t read (float *ptr, sf_count_t items) ;
122 sf_count_t read (double *ptr, sf_count_t items) ;
124 sf_count_t write (const short *ptr, sf_count_t items) ;
125 sf_count_t write (const int *ptr, sf_count_t items) ;
126 sf_count_t write (const float *ptr, sf_count_t items) ;
127 sf_count_t write (const double *ptr, sf_count_t items) ;
129 sf_count_t readf (short *ptr, sf_count_t frames) ;
130 sf_count_t readf (int *ptr, sf_count_t frames) ;
131 sf_count_t readf (float *ptr, sf_count_t frames) ;
132 sf_count_t readf (double *ptr, sf_count_t frames) ;
134 sf_count_t writef (const short *ptr, sf_count_t frames) ;
135 sf_count_t writef (const int *ptr, sf_count_t frames) ;
136 sf_count_t writef (const float *ptr, sf_count_t frames) ;
137 sf_count_t writef (const double *ptr, sf_count_t frames) ;
139 sf_count_t readRaw (void *ptr, sf_count_t bytes) ;
140 sf_count_t writeRaw (const void *ptr, sf_count_t bytes) ;
144 /*==============================================================================
145 ** Nothing but implementation below.
149 SndfileHandle::SNDFILE_ref::SNDFILE_ref (void)
154 SndfileHandle::SNDFILE_ref::~SNDFILE_ref (void)
155 { if (sf != NULL) { sf_close (sf) ; } }
159 SndfileHandle::close (void)
161 if (p != NULL && --p->ref == 0)
170 SndfileHandle::SndfileHandle (const char *path, int mode, int fmt, int chans, int srate)
173 p = new (std::nothrow) SNDFILE_ref () ;
178 p->sfinfo.frames = 0 ;
179 p->sfinfo.channels = chans ;
180 p->sfinfo.format = fmt ;
181 p->sfinfo.samplerate = srate ;
182 p->sfinfo.sections = 0 ;
183 p->sfinfo.seekable = 0 ;
185 p->sf = sf_open (path, mode, &p->sfinfo) ;
189 } /* SndfileHandle const char * constructor */
192 SndfileHandle::SndfileHandle (std::string const & path, int mode, int fmt, int chans, int srate)
195 p = new (std::nothrow) SNDFILE_ref () ;
200 p->sfinfo.frames = 0 ;
201 p->sfinfo.channels = chans ;
202 p->sfinfo.format = fmt ;
203 p->sfinfo.samplerate = srate ;
204 p->sfinfo.sections = 0 ;
205 p->sfinfo.seekable = 0 ;
207 p->sf = sf_open (path.c_str (), mode, &p->sfinfo) ;
211 } /* SndfileHandle std::string constructor */
214 SndfileHandle::SndfileHandle (int fd, bool close_desc, int mode, int fmt, int chans, int srate)
220 p = new (std::nothrow) SNDFILE_ref () ;
225 p->sfinfo.frames = 0 ;
226 p->sfinfo.channels = chans ;
227 p->sfinfo.format = fmt ;
228 p->sfinfo.samplerate = srate ;
229 p->sfinfo.sections = 0 ;
230 p->sfinfo.seekable = 0 ;
232 p->sf = sf_open_fd (fd, mode, &p->sfinfo, close_desc) ;
236 } /* SndfileHandle fd constructor */
239 SndfileHandle::~SndfileHandle (void)
240 { if (p != NULL && --p->ref == 0)
242 } /* SndfileHandle destructor */
246 SndfileHandle::SndfileHandle (const SndfileHandle &orig)
250 } /* SndfileHandle copy constructor */
252 inline SndfileHandle &
253 SndfileHandle::operator = (const SndfileHandle &rhs)
257 if (p != NULL && --p->ref == 0)
265 } /* SndfileHandle assignment operator */
268 SndfileHandle::error (void) const
269 { return sf_error (p->sf) ; }
272 SndfileHandle::strError (void) const
273 { return sf_strerror (p->sf) ; }
276 SndfileHandle::command (int cmd, void *data, int datasize)
277 { return sf_command (p->sf, cmd, data, datasize) ; }
280 SndfileHandle::seek (sf_count_t frame_count, int whence)
281 { return sf_seek (p->sf, frame_count, whence) ; }
284 SndfileHandle::writeSync (void)
285 { sf_write_sync (p->sf) ; }
288 SndfileHandle::setString (int str_type, const char* str)
289 { return sf_set_string (p->sf, str_type, str) ; }
292 SndfileHandle::getString (int str_type) const
293 { return sf_get_string (p->sf, str_type) ; }
296 SndfileHandle::formatCheck(int fmt, int chans, int srate)
301 sfinfo.channels = chans ;
302 sfinfo.format = fmt ;
303 sfinfo.samplerate = srate ;
304 sfinfo.sections = 0 ;
305 sfinfo.seekable = 0 ;
307 return sf_format_check (&sfinfo) ;
310 /*---------------------------------------------------------------------*/
313 SndfileHandle::read (short *ptr, sf_count_t items)
314 { return sf_read_short (p->sf, ptr, items) ; }
317 SndfileHandle::read (int *ptr, sf_count_t items)
318 { return sf_read_int (p->sf, ptr, items) ; }
321 SndfileHandle::read (float *ptr, sf_count_t items)
322 { return sf_read_float (p->sf, ptr, items) ; }
325 SndfileHandle::read (double *ptr, sf_count_t items)
326 { return sf_read_double (p->sf, ptr, items) ; }
329 SndfileHandle::write (const short *ptr, sf_count_t items)
330 { return sf_write_short (p->sf, ptr, items) ; }
333 SndfileHandle::write (const int *ptr, sf_count_t items)
334 { return sf_write_int (p->sf, ptr, items) ; }
337 SndfileHandle::write (const float *ptr, sf_count_t items)
338 { return sf_write_float (p->sf, ptr, items) ; }
341 SndfileHandle::write (const double *ptr, sf_count_t items)
342 { return sf_write_double (p->sf, ptr, items) ; }
345 SndfileHandle::readf (short *ptr, sf_count_t frame_count)
346 { return sf_readf_short (p->sf, ptr, frame_count) ; }
349 SndfileHandle::readf (int *ptr, sf_count_t frame_count)
350 { return sf_readf_int (p->sf, ptr, frame_count) ; }
353 SndfileHandle::readf (float *ptr, sf_count_t frame_count)
354 { return sf_readf_float (p->sf, ptr, frame_count) ; }
357 SndfileHandle::readf (double *ptr, sf_count_t frame_count)
358 { return sf_readf_double (p->sf, ptr, frame_count) ; }
361 SndfileHandle::writef (const short *ptr, sf_count_t frame_count)
362 { return sf_writef_short (p->sf, ptr, frame_count) ; }
365 SndfileHandle::writef (const int *ptr, sf_count_t frame_count)
366 { return sf_writef_int (p->sf, ptr, frame_count) ; }
369 SndfileHandle::writef (const float *ptr, sf_count_t frame_count)
370 { return sf_writef_float (p->sf, ptr, frame_count) ; }
373 SndfileHandle::writef (const double *ptr, sf_count_t frame_count)
374 { return sf_writef_double (p->sf, ptr, frame_count) ; }
377 SndfileHandle::readRaw (void *ptr, sf_count_t bytes)
378 { return sf_read_raw (p->sf, ptr, bytes) ; }
381 SndfileHandle::writeRaw (const void *ptr, sf_count_t bytes)
382 { return sf_write_raw (p->sf, ptr, bytes) ; }
385 #ifdef ENABLE_SNDFILE_WINDOWS_PROTOTYPES
388 SndfileHandle::SndfileHandle (LPCWSTR wpath, int mode, int fmt, int chans, int srate)
391 p = new (std::nothrow) SNDFILE_ref () ;
396 p->sfinfo.frames = 0 ;
397 p->sfinfo.channels = chans ;
398 p->sfinfo.format = fmt ;
399 p->sfinfo.samplerate = srate ;
400 p->sfinfo.sections = 0 ;
401 p->sfinfo.seekable = 0 ;
403 p->sf = sf_wchar_open (wpath, mode, &p->sfinfo) ;
407 } /* SndfileHandle const wchar_t * constructor */
411 } // namespace AudioGrapher
413 #endif /* SNDFILE_HH */