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/project/jni/sndfile/src/wav_w64.c

https://github.com/aichunyu/FFPlayer
C | 677 lines | 535 code | 100 blank | 42 comment | 109 complexity | 59e65e8f9b8f87a446af7b1df0e75ef1 MD5 | raw file
  1/*
  2** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
  3** Copyright (C) 2004-2005 David Viens <davidv@plogue.com>
  4**
  5** This program is free software; you can redistribute it and/or modify
  6** it under the terms of the GNU Lesser General Public License as published by
  7** the Free Software Foundation; either version 2.1 of the License, or
  8** (at your option) any later version.
  9**
 10** This program is distributed in the hope that it will be useful,
 11** but WITHOUT ANY WARRANTY; without even the implied warranty of
 12** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13** GNU Lesser General Public License for more details.
 14**
 15** You should have received a copy of the GNU Lesser General Public License
 16** along with this program; if not, write to the Free Software
 17** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 18*/
 19
 20#include	"sfconfig.h"
 21
 22#include	<stdio.h>
 23#include	<string.h>
 24#include	<ctype.h>
 25#include	<time.h>
 26
 27#include	"sndfile.h"
 28#include	"sfendian.h"
 29#include	"common.h"
 30#include	"wav_w64.h"
 31
 32/*  Known WAVEFORMATEXTENSIBLE GUIDS.  */
 33static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
 34{	0x00000001, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 35} ;
 36
 37static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
 38{	0x00000002, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 39} ;
 40
 41static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
 42{	0x00000003, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 43} ;
 44
 45static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
 46{	0x00000006, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 47} ;
 48
 49static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
 50{	0x00000007, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
 51} ;
 52
 53/*
 54** the next two are from
 55** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
 56*/
 57
 58static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
 59{	0x00000001, 0x0721, 0x11d3, {	0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00 }
 60} ;
 61
 62static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
 63{	0x00000003, 0x0721, 0x11d3, {	0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00 }
 64} ;
 65
 66
 67#if 0
 68/* maybe interesting one day to read the following through sf_read_raw */
 69/* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
 70static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
 71{	0x8312b9c2, 0x2e6e, 0x11d4, {	0xa8, 0x24, 0xde, 0x5b, 0x96, 0xc3, 0xab, 0x21 }
 72} ;
 73#endif
 74
 75/* This stores which bit in dwChannelMask maps to which channel */
 76static const struct chanmap_s
 77{	int id ;
 78	const char * name ;
 79} channel_mask_bits [] =
 80{	/* WAVEFORMATEXTENSIBLE doesn't distuingish FRONT_LEFT from LEFT */
 81	{	SF_CHANNEL_MAP_LEFT, "L" },
 82	{	SF_CHANNEL_MAP_RIGHT, "R" },
 83	{	SF_CHANNEL_MAP_CENTER, "C" },
 84	{	SF_CHANNEL_MAP_LFE, "LFE" },
 85	{	SF_CHANNEL_MAP_REAR_LEFT, "Ls" },
 86	{	SF_CHANNEL_MAP_REAR_RIGHT, "Rs" },
 87	{	SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER, "Lc" },
 88	{	SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER, "Rc" },
 89	{	SF_CHANNEL_MAP_REAR_CENTER, "Cs" },
 90	{	SF_CHANNEL_MAP_SIDE_LEFT, "Sl" },
 91	{	SF_CHANNEL_MAP_SIDE_RIGHT, "Sr" },
 92	{	SF_CHANNEL_MAP_TOP_CENTER, "Tc" },
 93	{	SF_CHANNEL_MAP_TOP_FRONT_LEFT, "Tfl" },
 94	{	SF_CHANNEL_MAP_TOP_FRONT_CENTER, "Tfc" },
 95	{	SF_CHANNEL_MAP_TOP_FRONT_RIGHT, "Tfr" },
 96	{	SF_CHANNEL_MAP_TOP_REAR_LEFT, "Trl" },
 97	{	SF_CHANNEL_MAP_TOP_REAR_CENTER, "Trc" },
 98	{	SF_CHANNEL_MAP_TOP_REAR_RIGHT, "Trr" },
 99} ;
100
101/*------------------------------------------------------------------------------
102 * Private static functions.
103 */
104
105static int
106wavex_guid_equal (const EXT_SUBFORMAT * first, const EXT_SUBFORMAT * second)
107{	return !memcmp (first, second, sizeof (EXT_SUBFORMAT)) ;
108} /* wavex_guid_equal */
109
110
111
112int
113wav_w64_read_fmt_chunk (SF_PRIVATE *psf, int fmtsize)
114{	WAV_PRIVATE * wpriv ;
115	WAV_FMT *wav_fmt ;
116	int	bytesread, k, bytespersec = 0 ;
117
118	if ((wpriv = psf->container_data) == NULL)
119		return SFE_INTERNAL ;
120	wav_fmt = &wpriv->wav_fmt ;
121
122	memset (wav_fmt, 0, sizeof (WAV_FMT)) ;
123
124	if (fmtsize < 16)
125		return SFE_WAV_FMT_SHORT ;
126
127	/* assume psf->rwf_endian is already properly set */
128
129	/* Read the minimal WAV file header here. */
130	bytesread = psf_binheader_readf (psf, "224422",
131					&(wav_fmt->format), &(wav_fmt->min.channels),
132					&(wav_fmt->min.samplerate), &(wav_fmt->min.bytespersec),
133					&(wav_fmt->min.blockalign), &(wav_fmt->min.bitwidth)) ;
134
135	psf_log_printf (psf, "  Format        : 0x%X => %s\n", wav_fmt->format, wav_w64_format_str (wav_fmt->format)) ;
136	psf_log_printf (psf, "  Channels      : %d\n", wav_fmt->min.channels) ;
137	psf_log_printf (psf, "  Sample Rate   : %d\n", wav_fmt->min.samplerate) ;
138
139	if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.blockalign == 0
140		&& wav_fmt->min.bitwidth > 0 && wav_fmt->min.channels > 0)
141	{	wav_fmt->min.blockalign = wav_fmt->min.bitwidth / 8 + (wav_fmt->min.bitwidth % 8 > 0 ? 1 : 0) ;
142		wav_fmt->min.blockalign *= wav_fmt->min.channels ;
143		psf_log_printf (psf, "  Block Align   : 0 (should be %d)\n", wav_fmt->min.blockalign) ;
144		}
145	else
146		psf_log_printf (psf, "  Block Align   : %d\n", wav_fmt->min.blockalign) ;
147
148	if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.bitwidth == 24 &&
149			wav_fmt->min.blockalign == 4 * wav_fmt->min.channels)
150	{	psf_log_printf (psf, "  Bit Width     : 24\n") ;
151
152		psf_log_printf (psf, "\n"
153			"  Ambiguous information in 'fmt ' chunk. Possibile file types:\n"
154			"    0) Invalid IEEE float file generated by Syntrillium's Cooledit!\n"
155			"    1) File generated by ALSA's arecord containing 24 bit samples in 32 bit containers.\n"
156			"    2) 24 bit file with incorrect Block Align value.\n"
157			"\n") ;
158
159		wpriv->fmt_is_broken = 1 ;
160		}
161	else if (wav_fmt->min.bitwidth == 0)
162	{	switch (wav_fmt->format)
163		{	case WAVE_FORMAT_GSM610 :
164			case WAVE_FORMAT_IPP_ITU_G_723_1 :
165					psf_log_printf (psf, "  Bit Width     : %d\n", wav_fmt->min.bitwidth) ;
166					break ;
167			default :
168					psf_log_printf (psf, "  Bit Width     : %d (should not be 0)\n", wav_fmt->min.bitwidth) ;
169			}
170		}
171	else
172	{	switch (wav_fmt->format)
173		{	case WAVE_FORMAT_GSM610 :
174			case WAVE_FORMAT_IPP_ITU_G_723_1 :
175		psf_log_printf (psf, "  Bit Width     : %d (should be 0)\n", wav_fmt->min.bitwidth) ;
176					break ;
177			default :
178					psf_log_printf (psf, "  Bit Width     : %d\n", wav_fmt->min.bitwidth) ;
179			}
180		} ;
181
182	psf->sf.samplerate	= wav_fmt->min.samplerate ;
183	psf->sf.frames 		= 0 ;					/* Correct this when reading data chunk. */
184	psf->sf.channels	= wav_fmt->min.channels ;
185
186	switch (wav_fmt->format)
187	{	case WAVE_FORMAT_PCM :
188		case WAVE_FORMAT_IEEE_FLOAT :
189				bytespersec = wav_fmt->min.samplerate * wav_fmt->min.blockalign ;
190				if (wav_fmt->min.bytespersec != (unsigned) bytespersec)
191					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ;
192				else
193					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->min.bytespersec) ;
194
195				psf->bytewidth = BITWIDTH2BYTES (wav_fmt->min.bitwidth) ;
196				break ;
197
198		case WAVE_FORMAT_ALAW :
199		case WAVE_FORMAT_MULAW :
200				if (wav_fmt->min.bytespersec / wav_fmt->min.blockalign != wav_fmt->min.samplerate)
201					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->min.bytespersec, wav_fmt->min.samplerate * wav_fmt->min.blockalign) ;
202				else
203					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->min.bytespersec) ;
204
205				psf->bytewidth = 1 ;
206				if (fmtsize >= 18)
207				{	bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->size20.extrabytes)) ;
208					psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->size20.extrabytes) ;
209					} ;
210				break ;
211
212		case WAVE_FORMAT_IMA_ADPCM :
213				if (wav_fmt->min.bitwidth != 4)
214					return SFE_WAV_ADPCM_NOT4BIT ;
215				if (wav_fmt->min.channels < 1 || wav_fmt->min.channels > 2)
216					return SFE_WAV_ADPCM_CHANNELS ;
217
218				bytesread +=
219				psf_binheader_readf (psf, "22", &(wav_fmt->ima.extrabytes), &(wav_fmt->ima.samplesperblock)) ;
220
221				bytespersec = (wav_fmt->ima.samplerate * wav_fmt->ima.blockalign) / wav_fmt->ima.samplesperblock ;
222				if (wav_fmt->ima.bytespersec != (unsigned) bytespersec)
223					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->ima.bytespersec, bytespersec) ;
224				else
225					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->ima.bytespersec) ;
226
227				psf->bytewidth = 2 ;
228				psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->ima.extrabytes) ;
229				psf_log_printf (psf, "  Samples/Block : %d\n", wav_fmt->ima.samplesperblock) ;
230				break ;
231
232		case WAVE_FORMAT_MS_ADPCM :
233				if (wav_fmt->msadpcm.bitwidth != 4)
234					return SFE_WAV_ADPCM_NOT4BIT ;
235				if (wav_fmt->msadpcm.channels < 1 || wav_fmt->msadpcm.channels > 2)
236					return SFE_WAV_ADPCM_CHANNELS ;
237
238				bytesread +=
239				psf_binheader_readf (psf, "222", &(wav_fmt->msadpcm.extrabytes),
240						&(wav_fmt->msadpcm.samplesperblock), &(wav_fmt->msadpcm.numcoeffs)) ;
241
242				bytespersec = (wav_fmt->min.samplerate * wav_fmt->min.blockalign) / wav_fmt->msadpcm.samplesperblock ;
243				if (wav_fmt->min.bytespersec == (unsigned) bytespersec)
244					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->min.bytespersec) ;
245				else if (wav_fmt->min.bytespersec == (wav_fmt->min.samplerate / wav_fmt->msadpcm.samplesperblock) * wav_fmt->min.blockalign)
246					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d (MS BUG!))\n", wav_fmt->min.bytespersec, bytespersec) ;
247				else
248					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ;
249
250				psf->bytewidth = 2 ;
251				psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->msadpcm.extrabytes) ;
252				psf_log_printf (psf, "  Samples/Block : %d\n", wav_fmt->msadpcm.samplesperblock) ;
253				if (wav_fmt->msadpcm.numcoeffs > ARRAY_LEN (wav_fmt->msadpcm.coeffs))
254				{	psf_log_printf (psf, "  No. of Coeffs : %d (should be <= %d)\n", wav_fmt->msadpcm.numcoeffs, ARRAY_LEN (wav_fmt->msadpcm.coeffs)) ;
255					wav_fmt->msadpcm.numcoeffs = ARRAY_LEN (wav_fmt->msadpcm.coeffs) ;
256					}
257				else
258					psf_log_printf (psf, "  No. of Coeffs : %d\n", wav_fmt->msadpcm.numcoeffs) ;
259
260				psf_log_printf (psf, "    Index   Coeffs1   Coeffs2\n") ;
261				for (k = 0 ; k < wav_fmt->msadpcm.numcoeffs ; k++)
262				{	bytesread +=
263					psf_binheader_readf (psf, "22", &(wav_fmt->msadpcm.coeffs [k].coeff1), &(wav_fmt->msadpcm.coeffs [k].coeff2)) ;
264					snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "     %2d     %7d   %7d\n", k, wav_fmt->msadpcm.coeffs [k].coeff1, wav_fmt->msadpcm.coeffs [k].coeff2) ;
265					psf_log_printf (psf, psf->u.cbuf) ;
266					} ;
267				break ;
268
269		case WAVE_FORMAT_GSM610 :
270				if (wav_fmt->gsm610.channels != 1 || wav_fmt->gsm610.blockalign != 65)
271					return SFE_WAV_GSM610_FORMAT ;
272
273				bytesread +=
274				psf_binheader_readf (psf, "22", &(wav_fmt->gsm610.extrabytes), &(wav_fmt->gsm610.samplesperblock)) ;
275
276				if (wav_fmt->gsm610.samplesperblock != 320)
277					return SFE_WAV_GSM610_FORMAT ;
278
279				bytespersec = (wav_fmt->gsm610.samplerate * wav_fmt->gsm610.blockalign) / wav_fmt->gsm610.samplesperblock ;
280				if (wav_fmt->gsm610.bytespersec != (unsigned) bytespersec)
281					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->gsm610.bytespersec, bytespersec) ;
282				else
283					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->gsm610.bytespersec) ;
284
285				psf->bytewidth = 2 ;
286				psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->gsm610.extrabytes) ;
287				psf_log_printf (psf, "  Samples/Block : %d\n", wav_fmt->gsm610.samplesperblock) ;
288				break ;
289
290		case WAVE_FORMAT_EXTENSIBLE :
291				if (wav_fmt->ext.bytespersec / wav_fmt->ext.blockalign != wav_fmt->ext.samplerate)
292					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->ext.bytespersec, wav_fmt->ext.samplerate * wav_fmt->ext.blockalign) ;
293				else
294					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->ext.bytespersec) ;
295
296				bytesread +=
297				psf_binheader_readf (psf, "224", &(wav_fmt->ext.extrabytes), &(wav_fmt->ext.validbits),
298						&(wav_fmt->ext.channelmask)) ;
299
300				psf_log_printf (psf, "  Valid Bits    : %d\n", wav_fmt->ext.validbits) ;
301
302				if (wav_fmt->ext.channelmask == 0)
303					psf_log_printf (psf, "  Channel Mask  : 0x0 (should not be zero)\n") ;
304				else
305				{	unsigned bit ;
306
307					wpriv->wavex_channelmask = wav_fmt->ext.channelmask ;
308
309					/* It's probably wise to ignore the channel mask if it is all zero */
310					free (psf->channel_map) ;
311
312					if ((psf->channel_map = calloc (psf->sf.channels, sizeof (psf->channel_map [0]))) == NULL)
313						return SFE_MALLOC_FAILED ;
314
315					/* Terminate the buffer we're going to append_snprintf into. */
316					psf->u.cbuf [0] = 0 ;
317
318					for (bit = k = 0 ; bit < ARRAY_LEN (channel_mask_bits) ; bit++)
319					{
320						if (wav_fmt->ext.channelmask & (1 << bit))
321						{	if (k > psf->sf.channels)
322							{	psf_log_printf (psf, "*** More channel map bits than there are channels.\n") ;
323								break ;
324								} ;
325
326							psf->channel_map [k++] = channel_mask_bits [bit].id ;
327							append_snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%s, ", channel_mask_bits [bit].name) ;
328							} ;
329						} ;
330
331					/* Remove trailing ", ". */
332					bit = strlen (psf->u.cbuf) ;
333					psf->u.cbuf [--bit] = 0 ;
334					psf->u.cbuf [--bit] = 0 ;
335
336					if (k != psf->sf.channels)
337					{	psf_log_printf (psf, "  Channel Mask  : 0x%X\n", wav_fmt->ext.channelmask) ;
338						psf_log_printf (psf, "*** Less channel map bits than there are channels.\n") ;
339						}
340					else
341						psf_log_printf (psf, "  Channel Mask  : 0x%X (%s)\n", wav_fmt->ext.channelmask, psf->u.cbuf) ;
342					} ;
343
344				bytesread += psf_binheader_readf (psf, "422", &(wav_fmt->ext.esf.esf_field1), &(wav_fmt->ext.esf.esf_field2), &(wav_fmt->ext.esf.esf_field3)) ;
345
346				/* compare the esf_fields with each known GUID? and print? */
347				psf_log_printf (psf, "  Subformat\n") ;
348				psf_log_printf (psf, "    esf_field1 : 0x%X\n", wav_fmt->ext.esf.esf_field1) ;
349				psf_log_printf (psf, "    esf_field2 : 0x%X\n", wav_fmt->ext.esf.esf_field2) ;
350				psf_log_printf (psf, "    esf_field3 : 0x%X\n", wav_fmt->ext.esf.esf_field3) ;
351				psf_log_printf (psf, "    esf_field4 : ") ;
352				for (k = 0 ; k < 8 ; k++)
353				{	bytesread += psf_binheader_readf (psf, "1", &(wav_fmt->ext.esf.esf_field4 [k])) ;
354					psf_log_printf (psf, "0x%X ", wav_fmt->ext.esf.esf_field4 [k] & 0xFF) ;
355					} ;
356				psf_log_printf (psf, "\n") ;
357				psf->bytewidth = BITWIDTH2BYTES (wav_fmt->ext.bitwidth) ;
358
359				/* Compare GUIDs for known ones. */
360				if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_PCM))
361				{	psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
362					psf_log_printf (psf, "    format : pcm\n") ;
363					}
364				else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MS_ADPCM))
365				{	psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM) ;
366					psf_log_printf (psf, "    format : ms adpcm\n") ;
367					}
368				else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_IEEE_FLOAT))
369				{	psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ;
370					psf_log_printf (psf, "    format : IEEE float\n") ;
371					}
372				else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_ALAW))
373				{	psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ALAW) ;
374					psf_log_printf (psf, "    format : A-law\n") ;
375					}
376				else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MULAW))
377				{	psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ULAW) ;
378					psf_log_printf (psf, "    format : u-law\n") ;
379					}
380				else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM))
381				{	psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
382					psf_log_printf (psf, "    format : pcm (Ambisonic B)\n") ;
383					wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
384					}
385				else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT))
386				{	psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ;
387					psf_log_printf (psf, "    format : IEEE float (Ambisonic B)\n") ;
388					wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ;
389					}
390				else
391					return SFE_UNIMPLEMENTED ;
392
393				break ;
394
395		case WAVE_FORMAT_G721_ADPCM :
396				psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->g72x.bytespersec) ;
397				if (fmtsize >= 20)
398				{	bytesread += psf_binheader_readf (psf, "22", &(wav_fmt->g72x.extrabytes), &(wav_fmt->g72x.auxblocksize)) ;
399					if (wav_fmt->g72x.extrabytes == 0)
400						psf_log_printf (psf, "  Extra Bytes   : %d (should be 2)\n", wav_fmt->g72x.extrabytes) ;
401					else
402						psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->g72x.extrabytes) ;
403						psf_log_printf (psf, "  Aux Blk Size  : %d\n", wav_fmt->g72x.auxblocksize) ;
404					}
405				else if (fmtsize == 18)
406				{	bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->g72x.extrabytes)) ;
407					psf_log_printf (psf, "  Extra Bytes   : %d%s\n", wav_fmt->g72x.extrabytes, wav_fmt->g72x.extrabytes != 0 ? " (should be 0)" : "") ;
408					}
409				else
410					psf_log_printf (psf, "*** 'fmt ' chunk should be bigger than this!\n") ;
411				break ;
412
413		default :
414				psf_log_printf (psf, "*** No 'fmt ' chunk dumper for this format!\n") ;
415				return SFE_WAV_BAD_FMT ;
416		} ;
417
418	if (bytesread > fmtsize)
419	{	psf_log_printf (psf, "*** wav_w64_read_fmt_chunk (bytesread > fmtsize)\n") ;
420		return SFE_WAV_BAD_FMT ;
421		}
422	else
423		psf_binheader_readf (psf, "j", fmtsize - bytesread) ;
424
425	psf->blockwidth = wav_fmt->min.channels * psf->bytewidth ;
426
427	return 0 ;
428} /* wav_w64_read_fmt_chunk */
429
430void
431wavex_write_guid (SF_PRIVATE *psf, const EXT_SUBFORMAT * subformat)
432{
433	psf_binheader_writef (psf, "422b", subformat->esf_field1,
434					subformat->esf_field2, subformat->esf_field3,
435					subformat->esf_field4, make_size_t (8)) ;
436} /* wavex_write_guid */
437
438
439int
440wavex_gen_channel_mask (const int *chan_map, int channels)
441{	int chan, mask = 0, bit = -1, last_bit = -1 ;
442
443	if (chan_map == NULL)
444		return 0 ;
445
446	for (chan = 0 ; chan < channels ; chan ++)
447	{	int k ;
448
449		for (k = bit + 1 ; k < ARRAY_LEN (channel_mask_bits) ; k++)
450			if (chan_map [chan] == channel_mask_bits [k].id)
451			{	bit = k ;
452				break ;
453				} ;
454
455		/* Check for bad sequence. */
456		if (bit <= last_bit)
457			return 0 ;
458
459		mask += 1 << bit ;
460		last_bit = bit ;
461		} ;
462
463	return mask ;
464} /* wavex_gen_channel_mask */
465
466void
467wav_w64_analyze (SF_PRIVATE *psf)
468{	AUDIO_DETECT ad ;
469	int format = 0 ;
470
471	if (psf->is_pipe)
472	{	psf_log_printf (psf, "*** Error : Reading from a pipe. Can't analyze data section to figure out real data format.\n\n") ;
473		return ;
474		} ;
475
476	psf_log_printf (psf, "---------------------------------------------------\n"
477						"Format is known to be broken. Using detection code.\n") ;
478
479	/* Code goes here. */
480	ad.endianness = SF_ENDIAN_LITTLE ;
481	ad.channels = psf->sf.channels ;
482
483	psf_fseek (psf, 3 * 4 * 50, SEEK_SET) ;
484
485	while (psf_fread (psf->u.ucbuf, 1, 4096, psf) == 4096)
486	{	format = audio_detect (psf, &ad, psf->u.ucbuf, 4096) ;
487		if (format != 0)
488			break ;
489		} ;
490
491	/* Seek to start of DATA section. */
492	psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
493
494	if (format == 0)
495	{	psf_log_printf (psf, "wav_w64_analyze : detection failed.\n") ;
496		return ;
497		} ;
498
499	switch (format)
500	{	case SF_FORMAT_PCM_32 :
501		case SF_FORMAT_FLOAT :
502			psf_log_printf (psf, "wav_w64_analyze : found format : 0x%X\n", format) ;
503			psf->sf.format = (psf->sf.format & ~SF_FORMAT_SUBMASK) + format ;
504			psf->bytewidth = 4 ;
505			psf->blockwidth = psf->sf.channels * psf->bytewidth ;
506			break ;
507
508		case SF_FORMAT_PCM_24 :
509			psf_log_printf (psf, "wav_w64_analyze : found format : 0x%X\n", format) ;
510			psf->sf.format = (psf->sf.format & ~SF_FORMAT_SUBMASK) + format ;
511			psf->bytewidth = 3 ;
512			psf->blockwidth = psf->sf.channels * psf->bytewidth ;
513			break ;
514
515		default :
516			psf_log_printf (psf, "wav_w64_analyze : unhandled format : 0x%X\n", format) ;
517			break ;
518		} ;
519
520	return ;
521} /* wav_w64_analyze */
522
523/*==============================================================================
524*/
525
526typedef struct
527{	int			ID ;
528	const char	*name ;
529} WAV_FORMAT_DESC ;
530
531#define STR(x)			#x
532#define FORMAT_TYPE(x)	{ x, STR (x) }
533
534static WAV_FORMAT_DESC wave_descs [] =
535{	FORMAT_TYPE	(WAVE_FORMAT_PCM),
536	FORMAT_TYPE (WAVE_FORMAT_MS_ADPCM),
537	FORMAT_TYPE (WAVE_FORMAT_IEEE_FLOAT),
538	FORMAT_TYPE (WAVE_FORMAT_VSELP),
539	FORMAT_TYPE (WAVE_FORMAT_IBM_CVSD),
540	FORMAT_TYPE (WAVE_FORMAT_ALAW),
541	FORMAT_TYPE (WAVE_FORMAT_MULAW),
542	FORMAT_TYPE (WAVE_FORMAT_OKI_ADPCM),
543	FORMAT_TYPE (WAVE_FORMAT_IMA_ADPCM),
544	FORMAT_TYPE (WAVE_FORMAT_MEDIASPACE_ADPCM),
545	FORMAT_TYPE (WAVE_FORMAT_SIERRA_ADPCM),
546	FORMAT_TYPE (WAVE_FORMAT_G723_ADPCM),
547	FORMAT_TYPE (WAVE_FORMAT_DIGISTD),
548	FORMAT_TYPE (WAVE_FORMAT_DIGIFIX),
549	FORMAT_TYPE (WAVE_FORMAT_DIALOGIC_OKI_ADPCM),
550	FORMAT_TYPE (WAVE_FORMAT_MEDIAVISION_ADPCM),
551	FORMAT_TYPE (WAVE_FORMAT_CU_CODEC),
552	FORMAT_TYPE (WAVE_FORMAT_YAMAHA_ADPCM),
553	FORMAT_TYPE (WAVE_FORMAT_SONARC),
554	FORMAT_TYPE (WAVE_FORMAT_DSPGROUP_TRUESPEECH),
555	FORMAT_TYPE (WAVE_FORMAT_ECHOSC1),
556	FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF36),
557	FORMAT_TYPE (WAVE_FORMAT_APTX),
558	FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF10),
559	FORMAT_TYPE (WAVE_FORMAT_PROSODY_1612),
560	FORMAT_TYPE (WAVE_FORMAT_LRC),
561	FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC2),
562	FORMAT_TYPE (WAVE_FORMAT_GSM610),
563	FORMAT_TYPE (WAVE_FORMAT_MSNAUDIO),
564	FORMAT_TYPE (WAVE_FORMAT_ANTEX_ADPCME),
565	FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_VQLPC),
566	FORMAT_TYPE (WAVE_FORMAT_DIGIREAL),
567	FORMAT_TYPE (WAVE_FORMAT_DIGIADPCM),
568	FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_CR10),
569	FORMAT_TYPE (WAVE_FORMAT_NMS_VBXADPCM),
570	FORMAT_TYPE (WAVE_FORMAT_ROLAND_RDAC),
571	FORMAT_TYPE (WAVE_FORMAT_ECHOSC3),
572	FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_ADPCM),
573	FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_DIGITALK),
574	FORMAT_TYPE (WAVE_FORMAT_XEBEC),
575	FORMAT_TYPE (WAVE_FORMAT_G721_ADPCM),
576	FORMAT_TYPE (WAVE_FORMAT_G728_CELP),
577	FORMAT_TYPE (WAVE_FORMAT_MSG723),
578	FORMAT_TYPE (WAVE_FORMAT_MPEG),
579	FORMAT_TYPE (WAVE_FORMAT_RT24),
580	FORMAT_TYPE (WAVE_FORMAT_PAC),
581	FORMAT_TYPE (WAVE_FORMAT_MPEGLAYER3),
582	FORMAT_TYPE (WAVE_FORMAT_LUCENT_G723),
583	FORMAT_TYPE (WAVE_FORMAT_CIRRUS),
584	FORMAT_TYPE (WAVE_FORMAT_ESPCM),
585	FORMAT_TYPE (WAVE_FORMAT_VOXWARE),
586	FORMAT_TYPE (WAVE_FORMAT_CANOPUS_ATRAC),
587	FORMAT_TYPE (WAVE_FORMAT_G726_ADPCM),
588	FORMAT_TYPE (WAVE_FORMAT_G722_ADPCM),
589	FORMAT_TYPE (WAVE_FORMAT_DSAT),
590	FORMAT_TYPE (WAVE_FORMAT_DSAT_DISPLAY),
591	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_BYTE_ALIGNED),
592	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC8),
593	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC10),
594	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC16),
595	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC20),
596	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT24),
597	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29),
598	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29HW),
599	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR12),
600	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR18),
601	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_TQ40),
602	FORMAT_TYPE (WAVE_FORMAT_SOFTSOUND),
603	FORMAT_TYPE (WAVE_FORMAT_VOXARE_TQ60),
604	FORMAT_TYPE (WAVE_FORMAT_MSRT24),
605	FORMAT_TYPE (WAVE_FORMAT_G729A),
606	FORMAT_TYPE (WAVE_FORMAT_MVI_MV12),
607	FORMAT_TYPE (WAVE_FORMAT_DF_G726),
608	FORMAT_TYPE (WAVE_FORMAT_DF_GSM610),
609	FORMAT_TYPE (WAVE_FORMAT_ONLIVE),
610	FORMAT_TYPE (WAVE_FORMAT_SBC24),
611	FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC3_SPDIF),
612	FORMAT_TYPE (WAVE_FORMAT_ZYXEL_ADPCM),
613	FORMAT_TYPE (WAVE_FORMAT_PHILIPS_LPCBB),
614	FORMAT_TYPE (WAVE_FORMAT_PACKED),
615	FORMAT_TYPE (WAVE_FORMAT_RHETOREX_ADPCM),
616	FORMAT_TYPE (IBM_FORMAT_MULAW),
617	FORMAT_TYPE (IBM_FORMAT_ALAW),
618	FORMAT_TYPE (IBM_FORMAT_ADPCM),
619	FORMAT_TYPE (WAVE_FORMAT_VIVO_G723),
620	FORMAT_TYPE (WAVE_FORMAT_VIVO_SIREN),
621	FORMAT_TYPE (WAVE_FORMAT_DIGITAL_G723),
622	FORMAT_TYPE (WAVE_FORMAT_CREATIVE_ADPCM),
623	FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH8),
624	FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH10),
625	FORMAT_TYPE (WAVE_FORMAT_QUARTERDECK),
626	FORMAT_TYPE (WAVE_FORMAT_FM_TOWNS_SND),
627	FORMAT_TYPE (WAVE_FORMAT_BZV_DIGITAL),
628	FORMAT_TYPE (WAVE_FORMAT_VME_VMPCM),
629	FORMAT_TYPE (WAVE_FORMAT_OLIGSM),
630	FORMAT_TYPE (WAVE_FORMAT_OLIADPCM),
631	FORMAT_TYPE (WAVE_FORMAT_OLICELP),
632	FORMAT_TYPE (WAVE_FORMAT_OLISBC),
633	FORMAT_TYPE (WAVE_FORMAT_OLIOPR),
634	FORMAT_TYPE (WAVE_FORMAT_LH_CODEC),
635	FORMAT_TYPE (WAVE_FORMAT_NORRIS),
636	FORMAT_TYPE (WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS),
637	FORMAT_TYPE (WAVE_FORMAT_DVM),
638	FORMAT_TYPE (WAVE_FORMAT_INTERWAV_VSC112),
639	FORMAT_TYPE (WAVE_FORMAT_IPP_ITU_G_723_1),
640	FORMAT_TYPE (WAVE_FORMAT_EXTENSIBLE),
641} ;
642
643char const*
644wav_w64_format_str (int k)
645{	int lower, upper, mid ;
646
647	lower = -1 ;
648	upper = sizeof (wave_descs) / sizeof (WAV_FORMAT_DESC) ;
649
650	/* binary search */
651	if ((wave_descs [0].ID <= k) && (k <= wave_descs [upper - 1].ID))
652	{
653		while (lower + 1 < upper)
654		{	mid = (upper + lower) / 2 ;
655
656			if (k == wave_descs [mid].ID)
657				return wave_descs [mid].name ;
658			if (k < wave_descs [mid].ID)
659				upper = mid ;
660			else
661				lower = mid ;
662			} ;
663		} ;
664
665	return "Unknown format" ;
666} /* wav_w64_format_str */
667
668int
669wav_w64_srate2blocksize (int srate_chan_product)
670{	if (srate_chan_product < 12000)
671		return 256 ;
672	if (srate_chan_product < 23000)
673		return 512 ;
674	if (srate_chan_product < 44000)
675		return 1024 ;
676	return 2048 ;
677} /* srate2blocksize */