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/project/jni/sndfile/include/sndfile.hh

https://github.com/aichunyu/FFPlayer
C++ Header | 422 lines | 270 code | 96 blank | 56 comment | 33 complexity | aa9bd1cb9b1369ae36ccd3e396cec3fa MD5 | raw file
  1/*
  2** Copyright (C) 2005-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
  3**
  4** All rights reserved.
  5**
  6** Redistribution and use in source and binary forms, with or without
  7** modification, are permitted provided that the following conditions are
  8** met:
  9**
 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
 15**       distribution.
 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.
 19**
 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.
 31*/
 32
 33/*
 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
 37** GPL.
 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.
 40*/
 41
 42/*
 43** sndfile.hh -- A lightweight C++ wrapper for the libsndfile API.
 44**
 45** All the methods are inlines and all functionality is contained in this
 46** file. There is no separate implementation file.
 47**
 48** API documentation is in the doc/ directory of the source code tarball
 49** and at http://www.mega-nerd.com/libsndfile/api.html.
 50*/
 51
 52#ifndef SNDFILE_HH
 53#define SNDFILE_HH
 54
 55#include <sndfile.h>
 56
 57#include <string>
 58#include <new> // for std::nothrow
 59
 60class SndfileHandle
 61{	private :
 62		struct SNDFILE_ref
 63		{	SNDFILE_ref (void) ;
 64			~SNDFILE_ref (void) ;
 65
 66			SNDFILE *sf ;
 67			SF_INFO sfinfo ;
 68			int ref ;
 69			} ;
 70
 71		SNDFILE_ref *p ;
 72
 73	public :
 74			/* Default constructor */
 75			SndfileHandle (void) : p (NULL) {} ;
 76			SndfileHandle (const char *path, int mode = SFM_READ,
 77							int format = 0, int channels = 0, int samplerate = 0) ;
 78			SndfileHandle (std::string const & path, int mode = SFM_READ,
 79							int format = 0, int channels = 0, int samplerate = 0) ;
 80			SndfileHandle (int fd, bool close_desc, int mode = SFM_READ,
 81							int format = 0, int channels = 0, int samplerate = 0) ;
 82
 83#ifdef ENABLE_SNDFILE_WINDOWS_PROTOTYPES
 84			SndfileHandle (LPCWSTR wpath, int mode = SFM_READ,
 85							int format = 0, int channels = 0, int samplerate = 0) ;
 86#endif
 87
 88			~SndfileHandle (void) ;
 89
 90			SndfileHandle (const SndfileHandle &orig) ;
 91			SndfileHandle & operator = (const SndfileHandle &rhs) ;
 92
 93		/* Mainly for debugging/testing. */
 94		int refCount (void) const { return (p == NULL) ? 0 : p->ref ; }
 95
 96		operator bool () const { return (p != NULL) ; }
 97
 98		bool operator == (const SndfileHandle &rhs) const { return (p == rhs.p) ; }
 99
100		sf_count_t	frames (void) const		{ return p ? p->sfinfo.frames : 0 ; }
101		int			format (void) const		{ return p ? p->sfinfo.format : 0 ; }
102		int			channels (void) const	{ return p ? p->sfinfo.channels : 0 ; }
103		int			samplerate (void) const { return p ? p->sfinfo.samplerate : 0 ; }
104
105		int error (void) const ;
106		const char * strError (void) const ;
107
108		int command (int cmd, void *data, int datasize) ;
109
110		sf_count_t	seek (sf_count_t frames, int whence) ;
111
112		void writeSync (void) ;
113
114		int setString (int str_type, const char* str) ;
115
116		const char* getString (int str_type) const ;
117
118		static int formatCheck (int format, int channels, int samplerate) ;
119
120		sf_count_t read (short *ptr, sf_count_t items) ;
121		sf_count_t read (int *ptr, sf_count_t items) ;
122		sf_count_t read (float *ptr, sf_count_t items) ;
123		sf_count_t read (double *ptr, sf_count_t items) ;
124
125		sf_count_t write (const short *ptr, sf_count_t items) ;
126		sf_count_t write (const int *ptr, sf_count_t items) ;
127		sf_count_t write (const float *ptr, sf_count_t items) ;
128		sf_count_t write (const double *ptr, sf_count_t items) ;
129
130		sf_count_t readf (short *ptr, sf_count_t frames) ;
131		sf_count_t readf (int *ptr, sf_count_t frames) ;
132		sf_count_t readf (float *ptr, sf_count_t frames) ;
133		sf_count_t readf (double *ptr, sf_count_t frames) ;
134
135		sf_count_t writef (const short *ptr, sf_count_t frames) ;
136		sf_count_t writef (const int *ptr, sf_count_t frames) ;
137		sf_count_t writef (const float *ptr, sf_count_t frames) ;
138		sf_count_t writef (const double *ptr, sf_count_t frames) ;
139
140		sf_count_t	readRaw		(void *ptr, sf_count_t bytes) ;
141		sf_count_t	writeRaw	(const void *ptr, sf_count_t bytes) ;
142
143		/**< Raw access to the handle. SndfileHandle keeps ownership. */
144		SNDFILE * rawHandle (void) ;
145
146		/**< Take ownership of handle, iff reference count is 1. */
147		SNDFILE * takeOwnership (void) ;
148} ;
149
150/*==============================================================================
151**	Nothing but implementation below.
152*/
153
154inline
155SndfileHandle::SNDFILE_ref::SNDFILE_ref (void)
156: ref (1)
157{}
158
159inline
160SndfileHandle::SNDFILE_ref::~SNDFILE_ref (void)
161{	if (sf != NULL) sf_close (sf) ; }
162
163inline
164SndfileHandle::SndfileHandle (const char *path, int mode, int fmt, int chans, int srate)
165: p (NULL)
166{
167	p = new (std::nothrow) SNDFILE_ref () ;
168
169	if (p != NULL)
170	{	p->ref = 1 ;
171
172		p->sfinfo.frames = 0 ;
173		p->sfinfo.channels = chans ;
174		p->sfinfo.format = fmt ;
175		p->sfinfo.samplerate = srate ;
176		p->sfinfo.sections = 0 ;
177		p->sfinfo.seekable = 0 ;
178
179		p->sf = sf_open (path, mode, &p->sfinfo) ;
180		} ;
181
182	return ;
183} /* SndfileHandle const char * constructor */
184
185inline
186SndfileHandle::SndfileHandle (std::string const & path, int mode, int fmt, int chans, int srate)
187: p (NULL)
188{
189	p = new (std::nothrow) SNDFILE_ref () ;
190
191	if (p != NULL)
192	{	p->ref = 1 ;
193
194		p->sfinfo.frames = 0 ;
195		p->sfinfo.channels = chans ;
196		p->sfinfo.format = fmt ;
197		p->sfinfo.samplerate = srate ;
198		p->sfinfo.sections = 0 ;
199		p->sfinfo.seekable = 0 ;
200
201		p->sf = sf_open (path.c_str (), mode, &p->sfinfo) ;
202		} ;
203
204	return ;
205} /* SndfileHandle std::string constructor */
206
207inline
208SndfileHandle::SndfileHandle (int fd, bool close_desc, int mode, int fmt, int chans, int srate)
209: p (NULL)
210{
211	if (fd < 0)
212		return ;
213
214	p = new (std::nothrow) SNDFILE_ref () ;
215
216	if (p != NULL)
217	{	p->ref = 1 ;
218
219		p->sfinfo.frames = 0 ;
220		p->sfinfo.channels = chans ;
221		p->sfinfo.format = fmt ;
222		p->sfinfo.samplerate = srate ;
223		p->sfinfo.sections = 0 ;
224		p->sfinfo.seekable = 0 ;
225
226		p->sf = sf_open_fd (fd, mode, &p->sfinfo, close_desc) ;
227		} ;
228
229	return ;
230} /* SndfileHandle fd constructor */
231
232inline
233SndfileHandle::~SndfileHandle (void)
234{	if (p != NULL && --p->ref == 0)
235		delete p ;
236} /* SndfileHandle destructor */
237
238
239inline
240SndfileHandle::SndfileHandle (const SndfileHandle &orig)
241: p (orig.p)
242{	if (p != NULL)
243		++p->ref ;
244} /* SndfileHandle copy constructor */
245
246inline SndfileHandle &
247SndfileHandle::operator = (const SndfileHandle &rhs)
248{
249	if (&rhs == this)
250		return *this ;
251	if (p != NULL && --p->ref == 0)
252		delete p ;
253
254	p = rhs.p ;
255	if (p != NULL)
256		++p->ref ;
257
258	return *this ;
259} /* SndfileHandle assignment operator */
260
261inline int
262SndfileHandle::error (void) const
263{	return sf_error (p->sf) ; }
264
265inline const char *
266SndfileHandle::strError (void) const
267{	return sf_strerror (p->sf) ; }
268
269inline int
270SndfileHandle::command (int cmd, void *data, int datasize)
271{	return sf_command (p->sf, cmd, data, datasize) ; }
272
273inline sf_count_t
274SndfileHandle::seek (sf_count_t frame_count, int whence)
275{	return sf_seek (p->sf, frame_count, whence) ; }
276
277inline void
278SndfileHandle::writeSync (void)
279{	sf_write_sync (p->sf) ; }
280
281inline int
282SndfileHandle::setString (int str_type, const char* str)
283{	return sf_set_string (p->sf, str_type, str) ; }
284
285inline const char*
286SndfileHandle::getString (int str_type) const
287{	return sf_get_string (p->sf, str_type) ; }
288
289inline int
290SndfileHandle::formatCheck (int fmt, int chans, int srate)
291{
292	SF_INFO sfinfo ;
293
294	sfinfo.frames = 0 ;
295	sfinfo.channels = chans ;
296	sfinfo.format = fmt ;
297	sfinfo.samplerate = srate ;
298	sfinfo.sections = 0 ;
299	sfinfo.seekable = 0 ;
300
301	return sf_format_check (&sfinfo) ;
302}
303
304/*---------------------------------------------------------------------*/
305
306inline sf_count_t
307SndfileHandle::read (short *ptr, sf_count_t items)
308{	return sf_read_short (p->sf, ptr, items) ; }
309
310inline sf_count_t
311SndfileHandle::read (int *ptr, sf_count_t items)
312{	return sf_read_int (p->sf, ptr, items) ; }
313
314inline sf_count_t
315SndfileHandle::read (float *ptr, sf_count_t items)
316{	return sf_read_float (p->sf, ptr, items) ; }
317
318inline sf_count_t
319SndfileHandle::read (double *ptr, sf_count_t items)
320{	return sf_read_double (p->sf, ptr, items) ; }
321
322inline sf_count_t
323SndfileHandle::write (const short *ptr, sf_count_t items)
324{	return sf_write_short (p->sf, ptr, items) ; }
325
326inline sf_count_t
327SndfileHandle::write (const int *ptr, sf_count_t items)
328{	return sf_write_int (p->sf, ptr, items) ; }
329
330inline sf_count_t
331SndfileHandle::write (const float *ptr, sf_count_t items)
332{	return sf_write_float (p->sf, ptr, items) ; }
333
334inline sf_count_t
335SndfileHandle::write (const double *ptr, sf_count_t items)
336{	return sf_write_double (p->sf, ptr, items) ; }
337
338inline sf_count_t
339SndfileHandle::readf (short *ptr, sf_count_t frame_count)
340{	return sf_readf_short (p->sf, ptr, frame_count) ; }
341
342inline sf_count_t
343SndfileHandle::readf (int *ptr, sf_count_t frame_count)
344{	return sf_readf_int (p->sf, ptr, frame_count) ; }
345
346inline sf_count_t
347SndfileHandle::readf (float *ptr, sf_count_t frame_count)
348{	return sf_readf_float (p->sf, ptr, frame_count) ; }
349
350inline sf_count_t
351SndfileHandle::readf (double *ptr, sf_count_t frame_count)
352{	return sf_readf_double (p->sf, ptr, frame_count) ; }
353
354inline sf_count_t
355SndfileHandle::writef (const short *ptr, sf_count_t frame_count)
356{	return sf_writef_short (p->sf, ptr, frame_count) ; }
357
358inline sf_count_t
359SndfileHandle::writef (const int *ptr, sf_count_t frame_count)
360{	return sf_writef_int (p->sf, ptr, frame_count) ; }
361
362inline sf_count_t
363SndfileHandle::writef (const float *ptr, sf_count_t frame_count)
364{	return sf_writef_float (p->sf, ptr, frame_count) ; }
365
366inline sf_count_t
367SndfileHandle::writef (const double *ptr, sf_count_t frame_count)
368{	return sf_writef_double (p->sf, ptr, frame_count) ; }
369
370inline sf_count_t
371SndfileHandle::readRaw (void *ptr, sf_count_t bytes)
372{	return sf_read_raw (p->sf, ptr, bytes) ; }
373
374inline sf_count_t
375SndfileHandle::writeRaw (const void *ptr, sf_count_t bytes)
376{	return sf_write_raw (p->sf, ptr, bytes) ; }
377
378inline SNDFILE *
379SndfileHandle::rawHandle (void)
380{	return (p ? p->sf : NULL) ; }
381
382inline SNDFILE *
383SndfileHandle::takeOwnership (void)
384{
385	if (p == NULL || (p->ref != 1))
386		return NULL ;
387
388	SNDFILE * sf = p->sf ;
389	p->sf = NULL ;
390	delete p ;
391	p = NULL ;
392	return sf ;
393}
394
395#ifdef ENABLE_SNDFILE_WINDOWS_PROTOTYPES
396
397inline
398SndfileHandle::SndfileHandle (LPCWSTR wpath, int mode, int fmt, int chans, int srate)
399: p (NULL)
400{
401	p = new (std::nothrow) SNDFILE_ref () ;
402
403	if (p != NULL)
404	{	p->ref = 1 ;
405
406		p->sfinfo.frames = 0 ;
407		p->sfinfo.channels = chans ;
408		p->sfinfo.format = fmt ;
409		p->sfinfo.samplerate = srate ;
410		p->sfinfo.sections = 0 ;
411		p->sfinfo.seekable = 0 ;
412
413		p->sf = sf_wchar_open (wpath, mode, &p->sfinfo) ;
414		} ;
415
416	return ;
417} /* SndfileHandle const wchar_t * constructor */
418
419#endif
420
421#endif	/* SNDFILE_HH */
422