1 /*****************************************************************************
2 * vlc_codecs.h: codec related structures needed by the demuxers and decoders
3 *****************************************************************************
4 * Copyright (C) 1999-2001 VLC authors and VideoLAN
5 * $Id: acf98f90436ba1f62391db48e0e36cfcd22a4cf1 $
6 *
7 * Author: Gildas Bazin <gbazin@videolan.org>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
23
24 #ifndef VLC_CODECS_H
25 #define VLC_CODECS_H 1
26
27 #include <vlc_fourcc.h>
28 /**
29 * \file
30 * This file defines codec related structures needed by the demuxers and decoders
31 */
32
33 /* Structures exported to the demuxers and decoders */
34
35 #if !(defined _GUID_DEFINED || defined GUID_DEFINED)
36 #define GUID_DEFINED
37 typedef struct _GUID
38 {
39 uint32_t Data1;
40 uint16_t Data2;
41 uint16_t Data3;
42 uint8_t Data4[8];
43 } GUID, *REFGUID, *LPGUID;
44 #endif /* GUID_DEFINED */
45
46 typedef GUID guid_t;
47
48 #ifdef HAVE_ATTRIBUTE_PACKED
49 # define ATTR_PACKED __attribute__((__packed__))
50 #elif defined(__SUNPRO_C) || defined(_MSC_VER)
51 # pragma pack(1)
52 # define ATTR_PACKED
53 #elif defined(__APPLE__)
54 # pragma pack(push, 1)
55 # define ATTR_PACKED
56 #else
57 # error FIXME
58 #endif
59
60 #ifndef _WAVEFORMATEX_
61 #define _WAVEFORMATEX_
62 typedef struct
63 ATTR_PACKED
64 _WAVEFORMATEX {
65 uint16_t wFormatTag;
66 uint16_t nChannels;
67 uint32_t nSamplesPerSec;
68 uint32_t nAvgBytesPerSec;
69 uint16_t nBlockAlign;
70 uint16_t wBitsPerSample;
71 uint16_t cbSize;
72 } WAVEFORMATEX, *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX;
73 #endif /* _WAVEFORMATEX_ */
74
75 #ifndef _WAVEFORMATEXTENSIBLE_
76 #define _WAVEFORMATEXTENSIBLE_
77 typedef struct
78 ATTR_PACKED
79 _WAVEFORMATEXTENSIBLE {
80 WAVEFORMATEX Format;
81 union {
82 uint16_t wValidBitsPerSample; /* bits of precision */
83 uint16_t wSamplesPerBlock; /* valid if wBitsPerSample==0 */
84 uint16_t wReserved; /* If neither applies, set to zero. */
85 } Samples;
86
87 uint32_t dwChannelMask; /* Channels present */
88
89 GUID SubFormat;
90 } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE;
91 #endif /* _WAVEFORMATEXTENSIBLE_ */
92
93 #ifndef _WAVEFORMATEXTENSIBLE_IEC61937_
94 #define _WAVEFORMATEXTENSIBLE_IEC61937_
95 typedef struct
96 ATTR_PACKED
97 _WAVEFORMATEXTENSIBLE_IEC61937 {
98 WAVEFORMATEXTENSIBLE FormatExt;
99 uint32_t dwEncodedSamplesPerSec;
100 uint32_t dwEncodedChannelCount;
101 uint32_t dwAverageBytesPerSec;
102 } WAVEFORMATEXTENSIBLE_IEC61937, *PWAVEFORMATEXTENSIBLE_IEC61937;
103 #endif /* _WAVEFORMATEXTENSIBLE_IEC61937_ */
104
105 #ifndef _WAVEHEADER_
106 #define _WAVEHEADER_
107 typedef struct
108 ATTR_PACKED
109 _WAVEHEADER {
110 uint32_t MainChunkID;
111 uint32_t Length;
112 uint32_t ChunkTypeID;
113 uint32_t SubChunkID;
114 uint32_t SubChunkLength;
115 uint16_t Format;
116 uint16_t Modus;
117 uint32_t SampleFreq;
118 uint32_t BytesPerSec;
119 uint16_t BytesPerSample;
120 uint16_t BitsPerSample;
121 uint32_t DataChunkID;
122 uint32_t DataLength;
123 } WAVEHEADER;
124 #endif /* _WAVEHEADER_ */
125
126 #ifndef _VLC_BITMAPINFOHEADER_
127 #define _VLC_BITMAPINFOHEADER_
128
129 typedef struct
130 ATTR_PACKED
131 {
132 uint32_t biSize;
133 uint32_t biWidth;
134 uint32_t biHeight;
135 uint16_t biPlanes;
136 uint16_t biBitCount;
137 uint32_t biCompression;
138 uint32_t biSizeImage;
139 uint32_t biXPelsPerMeter;
140 uint32_t biYPelsPerMeter;
141 uint32_t biClrUsed;
142 uint32_t biClrImportant;
143 } VLC_BITMAPINFOHEADER, *VLC_PBITMAPINFOHEADER, *VLC_LPBITMAPINFOHEADER;
144
145 typedef struct
146 ATTR_PACKED
147 {
148 VLC_BITMAPINFOHEADER bmiHeader;
149 int bmiColors[1];
150 } VLC_BITMAPINFO, *VLC_LPBITMAPINFO;
151 #endif
152
153 #ifndef _RECT32_
154 #define _RECT32_
155 typedef struct
156 ATTR_PACKED
157 {
158 int left, top, right, bottom;
159 } RECT32;
160 #endif
161
162 #ifndef _REFERENCE_TIME_
163 #define _REFERENCE_TIME_
164 typedef int64_t REFERENCE_TIME;
165 #endif
166
167 #ifndef _VIDEOINFOHEADER_
168 #define _VIDEOINFOHEADER_
169 typedef struct
170 ATTR_PACKED
171 {
172 RECT32 rcSource;
173 RECT32 rcTarget;
174 uint32_t dwBitRate;
175 uint32_t dwBitErrorRate;
176 REFERENCE_TIME AvgTimePerFrame;
177 VLC_BITMAPINFOHEADER bmiHeader;
178 } VIDEOINFOHEADER;
179 #endif
180
181 #if defined(__SUNPRO_C) || defined(_MSC_VER)
182 # pragma pack()
183 #elif defined(__APPLE__) && !HAVE_ATTRIBUTE_PACKED
184 # pragma pack(pop)
185 #endif
186
187 /* WAVE format wFormatTag IDs */
188 /* See http://msdn.microsoft.com/en-us/library/aa904731%28v=vs.80%29.aspx */
189 #define WAVE_FORMAT_UNKNOWN 0x0000 /* Microsoft Corporation */
190 #define WAVE_FORMAT_PCM 0x0001 /* Microsoft Corporation */
191 #define WAVE_FORMAT_ADPCM 0x0002 /* Microsoft Corporation */
192 #define WAVE_FORMAT_IEEE_FLOAT 0x0003 /* Microsoft Corporation */
193 #define WAVE_FORMAT_ALAW 0x0006 /* Microsoft Corporation */
194 #define WAVE_FORMAT_MULAW 0x0007 /* Microsoft Corporation */
195 #define WAVE_FORMAT_DTS_MS 0x0008 /* Microsoft Corporation */
196 #define WAVE_FORMAT_WMAS 0x000a /* WMA 9 Speech */
197 #define WAVE_FORMAT_IMA_ADPCM 0x0011 /* Intel Corporation */
198 #define WAVE_FORMAT_YAMAHA_ADPCM 0x0020 /* Yamaha */
199 #define WAVE_FORMAT_TRUESPEECH 0x0022 /* TrueSpeech */
200 #define WAVE_FORMAT_GSM610 0x0031 /* Microsoft Corporation */
201 #define WAVE_FORMAT_MSNAUDIO 0x0032 /* Microsoft Corporation */
202 #define WAVE_FORMAT_AMR_NB_2 0x0038 /* AMR NB rogue */
203 #define WAVE_FORMAT_MSG723 0x0042 /* Microsoft G.723 [G723.1] */
204 #define WAVE_FORMAT_G726 0x0045 /* ITU-T standard */
205 #define WAVE_FORMAT_MPEG 0x0050 /* Microsoft Corporation */
206 #define WAVE_FORMAT_MPEGLAYER3 0x0055 /* ISO/MPEG Layer3 Format Tag */
207 #define WAVE_FORMAT_AMR_NB 0x0057 /* AMR NB */
208 #define WAVE_FORMAT_AMR_WB 0x0058 /* AMR Wideband */
209 #define WAVE_FORMAT_G726_ADPCM 0x0064 /* G.726 ADPCM */
210 #define WAVE_FORMAT_VOXWARE_RT29 0x0075 /* VoxWare MetaSound */
211 #define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092 /* Sonic Foundry */
212 #define WAVE_FORMAT_VIVOG723 0x0111 /* Vivo G.723.1 */
213
214 #define WAVE_FORMAT_AAC 0x00FF /* */
215 #define WAVE_FORMAT_AAC_MS 0xa106 /* Microsoft AAC */
216 #define WAVE_FORMAT_SIPRO 0x0130 /* Sipro Lab Telecom Inc. */
217
218 #define WAVE_FORMAT_WMA1 0x0160 /* WMA version 1 */
219 #define WAVE_FORMAT_WMA2 0x0161 /* WMA (v2) 7, 8, 9 Series */
220 #define WAVE_FORMAT_WMAP 0x0162 /* WMA 9 Professional */
221 #define WAVE_FORMAT_WMAL 0x0163 /* WMA 9 Lossless */
222
223 #define WAVE_FORMAT_CREATIVE_ADPCM 0x0200 /* Creative */
224
225 #define WAVE_FORMAT_ULEAD_DV_AUDIO_NTSC 0x0215 /* Ulead */
226 #define WAVE_FORMAT_ULEAD_DV_AUDIO_PAL 0x0216 /* Ulead */
227
228 #define WAVE_FORMAT_ATRAC3 0x0270 /* Atrac3, != from MSDN doc */
229 #define WAVE_FORMAT_SONY_ATRAC3 0x0272 /* Atrac3, != from MSDN doc */
230
231 #define WAVE_FORMAT_IMC 0x0401
232 #define WAVE_FORMAT_INDEO_AUDIO 0x0402 /* Indeo Audio Coder */
233
234 #define WAVE_FORMAT_ON2_AVC 0x0500 /* VP7 */
235 #define WAVE_FORMAT_ON2_AVC_2 0x0501 /* VP6 */
236
237 #define WAVE_FORMAT_QNAP_ADTS 0x0AAC /* Qnap ADTS */
238 #define WAVE_FORMAT_AAC_ADTS 0x1600 /* AAC/ADTS */
239 #define WAVE_FORMAT_AAC_2 0x1601 /* Other AAC */
240 #define WAVE_FORMAT_AAC_LATM 0x1602 /* AAC/LATM */
241 #define WAVE_FORMAT_HEAAC 0x1610 /* Raw AAC or ADTS */
242
243 #define WAVE_FORMAT_A52 0x2000 /* a52 */
244 #define WAVE_FORMAT_DTS 0x2001 /* DTS */
245 #define WAVE_FORMAT_ALAC 0x6c61
246 #define WAVE_FORMAT_OPUS 0x704f
247 #define WAVE_FORMAT_AVCODEC_AAC 0x706D
248 #define WAVE_FORMAT_DIVIO_AAC 0x4143 /* Divio's AAC */
249
250 #define WAVE_FORMAT_GSM_AMR_FIXED 0x7A21 /* Fixed bitrate, no SID */
251 #define WAVE_FORMAT_GSM_AMR 0x7A22 /* Variable bitrate, including SID */
252
253 #define WAVE_FORMAT_DK3 0x0062
254 #define WAVE_FORMAT_DK4 0x0061
255
256 /* At least libavformat use that ID: from libavformat/riff.c ('Vo' == 0x566f)
257 * { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
258 */
259 #define WAVE_FORMAT_VORBIS 0x566f
260
261 /* It seems that these IDs are used by braindead & obsolete VorbisACM encoder
262 * (Windows only)
263 * A few info is available except VorbisACM source (remember, Windows only)
264 * (available on http://svn.xiph.org), but it seems that vo3+ at least is
265 * made of Vorbis data encapsulated in Ogg container...
266 */
267 #define WAVE_FORMAT_VORB_1 0x674f
268 #define WAVE_FORMAT_VORB_2 0x6750
269 #define WAVE_FORMAT_VORB_3 0x6751
270 #define WAVE_FORMAT_VORB_1PLUS 0x676f
271 #define WAVE_FORMAT_VORB_2PLUS 0x6770
272 #define WAVE_FORMAT_VORB_3PLUS 0x6771
273
274 #define WAVE_FORMAT_G723_1 0xa100
275 #define WAVE_FORMAT_AAC_3 0xa106
276 #define WAVE_FORMAT_SPEEX 0xa109 /* Speex audio */
277 #define WAVE_FORMAT_FLAC 0xf1ac /* Xiph Flac */
278
279 #if !defined(WAVE_FORMAT_EXTENSIBLE)
280 #define WAVE_FORMAT_EXTENSIBLE 0xFFFE /* Microsoft */
281 #endif
282
283 /* GUID SubFormat IDs */
284 #define VLC_KSDATAFORMAT_SUBTYPE_ATRAC3P {0xE923AABF, 0xCB58, 0x4471, {0xA1, 0x19, 0xFF, 0xFA, 0x01, 0xE4, 0xCE, 0x62}} /* Undocumented */
285 #define VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN {0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}
286 #define VLC_WAVEFORMATEX_GUIDBASE {0x00000000, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} /* Generated from Wave Format */
287 #define VLC_AMBISONIC_SUBTYPE_PCM {0x00000001, 0x0721, 0x11D3, {0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00}} /* AMBISONIC_B_FORMAT_PCM */
288 #define VLC_AMBISONIC_SUBTYPE_IEEE_FLOAT {0x00000003, 0x0721, 0x11D3, {0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00}} /* AMBISONIC_B_FORMAT_IEEE_FLOAT */
289
290 /* Microsoft speaker definitions */
291 #define WAVE_SPEAKER_FRONT_LEFT 0x1
292 #define WAVE_SPEAKER_FRONT_RIGHT 0x2
293 #define WAVE_SPEAKER_FRONT_CENTER 0x4
294 #define WAVE_SPEAKER_LOW_FREQUENCY 0x8
295 #define WAVE_SPEAKER_BACK_LEFT 0x10
296 #define WAVE_SPEAKER_BACK_RIGHT 0x20
297 #define WAVE_SPEAKER_FRONT_LEFT_OF_CENTER 0x40
298 #define WAVE_SPEAKER_FRONT_RIGHT_OF_CENTER 0x80
299 #define WAVE_SPEAKER_BACK_CENTER 0x100
300 #define WAVE_SPEAKER_SIDE_LEFT 0x200
301 #define WAVE_SPEAKER_SIDE_RIGHT 0x400
302 #define WAVE_SPEAKER_TOP_CENTER 0x800
303 #define WAVE_SPEAKER_TOP_FRONT_LEFT 0x1000
304 #define WAVE_SPEAKER_TOP_FRONT_CENTER 0x2000
305 #define WAVE_SPEAKER_TOP_FRONT_RIGHT 0x4000
306 #define WAVE_SPEAKER_TOP_BACK_LEFT 0x8000
307 #define WAVE_SPEAKER_TOP_BACK_CENTER 0x10000
308 #define WAVE_SPEAKER_TOP_BACK_RIGHT 0x20000
309 #define WAVE_SPEAKER_RESERVED 0x80000000
310
311 static const struct
312 {
313 uint16_t i_tag;
314 vlc_fourcc_t i_fourcc;
315 const char *psz_name;
316 }
317 wave_format_tag_to_fourcc[] =
318 {
319 { WAVE_FORMAT_PCM, VLC_FOURCC( 'a', 'r', 'a', 'w' ), "Raw audio" },
320 { WAVE_FORMAT_PCM, VLC_CODEC_S8, "PCM S8 audio" },
321 { WAVE_FORMAT_PCM, VLC_CODEC_S16L, "PCM S16L audio" },
322 { WAVE_FORMAT_PCM, VLC_CODEC_S24L, "PCM S24L audio" },
323 { WAVE_FORMAT_PCM, VLC_CODEC_S32L, "PCM S32L audio" },
324 { WAVE_FORMAT_ADPCM, VLC_CODEC_ADPCM_MS, "ADPCM" },
325 { WAVE_FORMAT_IEEE_FLOAT, VLC_FOURCC( 'a', 'f', 'l', 't' ), "IEEE Float audio" },
326 { WAVE_FORMAT_IEEE_FLOAT, VLC_CODEC_F32L, "PCM 32 (Float) audio" },
327 { WAVE_FORMAT_IEEE_FLOAT, VLC_CODEC_F64L, "PCM 64 (Float) audio" },
328 { WAVE_FORMAT_ALAW, VLC_CODEC_ALAW, "A-Law" },
329 { WAVE_FORMAT_MULAW, VLC_CODEC_MULAW, "Mu-Law" },
330 { WAVE_FORMAT_IMA_ADPCM, VLC_CODEC_ADPCM_IMA_WAV, "Ima-ADPCM" },
331 { WAVE_FORMAT_CREATIVE_ADPCM, VLC_CODEC_ADPCM_CREATIVE, "Creative ADPCM" },
332 { WAVE_FORMAT_YAMAHA_ADPCM, VLC_CODEC_ADPCM_YAMAHA, "Yamaha ADPCM" },
333 { WAVE_FORMAT_TRUESPEECH, VLC_CODEC_TRUESPEECH, "Truespeech" },
334 { WAVE_FORMAT_GSM610, VLC_CODEC_GSM_MS, "Microsoft WAV GSM" },
335 { WAVE_FORMAT_MSNAUDIO, VLC_CODEC_GSM_MS, "Microsoft MSN Audio" },
336 { WAVE_FORMAT_G726, VLC_CODEC_ADPCM_G726, "G.726 ADPCM" },
337 { WAVE_FORMAT_G726_ADPCM, VLC_CODEC_ADPCM_G726, "G.726 ADPCM" },
338 { WAVE_FORMAT_G723_1, VLC_CODEC_G723_1, "G.723.1" },
339 { WAVE_FORMAT_MSG723, VLC_CODEC_G723_1, "Microsoft G.723 [G723.1]" },
340 { WAVE_FORMAT_VIVOG723, VLC_CODEC_G723_1, "Vivo G.723.1" },
341 { WAVE_FORMAT_MPEGLAYER3, VLC_CODEC_MP3, "Mpeg Audio Layer 3" },
342 { WAVE_FORMAT_MPEG, VLC_CODEC_MPGA, "Mpeg Audio" },
343 { WAVE_FORMAT_AMR_NB, VLC_CODEC_AMR_NB, "AMR NB" },
344 { WAVE_FORMAT_AMR_NB_2, VLC_CODEC_AMR_NB, "AMR NB" },
345 { WAVE_FORMAT_AMR_WB, VLC_CODEC_AMR_WB, "AMR Wideband" },
346 { WAVE_FORMAT_SIPRO, VLC_CODEC_SIPR, "Sipr Audio" },
347 { WAVE_FORMAT_A52, VLC_CODEC_A52, "A/52" },
348 { WAVE_FORMAT_WMA1, VLC_CODEC_WMA1, "Window Media Audio v1" },
349 { WAVE_FORMAT_WMA2, VLC_CODEC_WMA2, "Window Media Audio v2" },
350 { WAVE_FORMAT_WMAP, VLC_CODEC_WMAP, "Window Media Audio 9 Professional" },
351 { WAVE_FORMAT_WMAL, VLC_CODEC_WMAL, "Window Media Audio 9 Lossless" },
352 { WAVE_FORMAT_WMAS, VLC_CODEC_WMAS, "Window Media Audio 9 Speech" },
353 { WAVE_FORMAT_ATRAC3, VLC_CODEC_ATRAC3, "Sony Atrac3" },
354 { WAVE_FORMAT_SONY_ATRAC3, VLC_CODEC_ATRAC3, "Sony Atrac3" },
355 { WAVE_FORMAT_DK3, VLC_CODEC_ADPCM_DK3, "Duck DK3" },
356 { WAVE_FORMAT_DK4, VLC_CODEC_ADPCM_DK4, "Duck DK4" },
357 { WAVE_FORMAT_DTS, VLC_CODEC_DTS, "DTS Coherent Acoustics" },
358 { WAVE_FORMAT_DTS_MS, VLC_CODEC_DTS, "DTS Coherent Acoustics" },
359 { WAVE_FORMAT_DIVIO_AAC, VLC_CODEC_MP4A, "MPEG-4 Audio (Divio)" },
360 { WAVE_FORMAT_AAC, VLC_CODEC_MP4A, "MPEG-4 Audio" },
361 { WAVE_FORMAT_QNAP_ADTS, VLC_CODEC_MP4A, "MPEG-4 ADTS Audio" },
362 { WAVE_FORMAT_AAC_ADTS, VLC_CODEC_MP4A, "MPEG-4 ADTS Audio" },
363 { WAVE_FORMAT_AAC_2, VLC_CODEC_MP4A, "MPEG-4 Audio" },
364 { WAVE_FORMAT_AAC_3, VLC_CODEC_MP4A, "MPEG-4 Audio" },
365 { WAVE_FORMAT_AAC_LATM, VLC_CODEC_MP4A, "MPEG-4 LATM Audio" },
366 { WAVE_FORMAT_HEAAC, VLC_CODEC_MP4A, "MPEG-4 Audio" },
367 { WAVE_FORMAT_ALAC, VLC_CODEC_ALAC, "Apple Lossless" },
368 { WAVE_FORMAT_OPUS, VLC_CODEC_OPUS, "Opus Audio" },
369 { WAVE_FORMAT_AVCODEC_AAC, VLC_CODEC_MP4A, "MPEG-4 Audio" },
370 { WAVE_FORMAT_AAC_MS, VLC_CODEC_MP4A, "MPEG-4 Audio" },
371 { WAVE_FORMAT_VORBIS, VLC_CODEC_VORBIS, "Vorbis Audio" },
372 { WAVE_FORMAT_VORB_1, VLC_FOURCC( 'v', 'o', 'r', '1' ), "Vorbis 1 Audio" },
373 { WAVE_FORMAT_VORB_1PLUS, VLC_FOURCC( 'v', 'o', '1', '+' ), "Vorbis 1+ Audio" },
374 { WAVE_FORMAT_VORB_2, VLC_FOURCC( 'v', 'o', 'r', '2' ), "Vorbis 2 Audio" },
375 { WAVE_FORMAT_VORB_2PLUS, VLC_FOURCC( 'v', 'o', '2', '+' ), "Vorbis 2+ Audio" },
376 { WAVE_FORMAT_VORB_3, VLC_FOURCC( 'v', 'o', 'r', '3' ), "Vorbis 3 Audio" },
377 { WAVE_FORMAT_VORB_3PLUS, VLC_FOURCC( 'v', 'o', '3', '+' ), "Vorbis 3+ Audio" },
378 { WAVE_FORMAT_SPEEX, VLC_CODEC_SPEEX, "Speex Audio" },
379 { WAVE_FORMAT_FLAC, VLC_CODEC_FLAC, "FLAC Audio" },
380 { WAVE_FORMAT_GSM_AMR_FIXED, VLC_CODEC_AMR_NB, "GSM-AMR Audio CBR, no SID" },
381 { WAVE_FORMAT_GSM_AMR, VLC_CODEC_AMR_NB, "GSM-AMR Audio VBR, SID" },
382 { WAVE_FORMAT_ULEAD_DV_AUDIO_NTSC, VLC_CODEC_ULEAD_DV_AUDIO_NTSC, "Ulead DV audio NTSC" },
383 { WAVE_FORMAT_ULEAD_DV_AUDIO_PAL, VLC_CODEC_ULEAD_DV_AUDIO_PAL, "Ulead DV audio PAL" },
384 { WAVE_FORMAT_IMC, VLC_CODEC_IMC, "IMC" },
385 { WAVE_FORMAT_INDEO_AUDIO, VLC_CODEC_INDEO_AUDIO, "Indeo Audio Coder" },
386 { WAVE_FORMAT_VOXWARE_RT29, VLC_CODEC_METASOUND, "VoxWare MetaSound" },
387 { WAVE_FORMAT_ON2_AVC, VLC_CODEC_ON2AVC, "On2 Audio for Video Codec (VP7)" },
388 { WAVE_FORMAT_ON2_AVC_2, VLC_CODEC_ON2AVC, "On2 Audio for Video Codec (VP6)" },
389
390 { WAVE_FORMAT_UNKNOWN, VLC_CODEC_UNKNOWN, "Unknown" }
391 };
392
wf_tag_to_fourcc(uint16_t i_tag,vlc_fourcc_t * fcc,const char ** ppsz_name)393 static inline void wf_tag_to_fourcc( uint16_t i_tag, vlc_fourcc_t *fcc,
394 const char **ppsz_name )
395 {
396 int i;
397 for( i = 0; wave_format_tag_to_fourcc[i].i_tag != 0; i++ )
398 {
399 if( wave_format_tag_to_fourcc[i].i_tag == i_tag ) break;
400 }
401 if( fcc ) *fcc = wave_format_tag_to_fourcc[i].i_fourcc;
402 if( ppsz_name ) *ppsz_name = wave_format_tag_to_fourcc[i].psz_name;
403 }
404
fourcc_to_wf_tag(vlc_fourcc_t fcc,uint16_t * pi_tag)405 static inline void fourcc_to_wf_tag( vlc_fourcc_t fcc, uint16_t *pi_tag )
406 {
407 int i;
408 for( i = 0; wave_format_tag_to_fourcc[i].i_tag != 0; i++ )
409 {
410 if( wave_format_tag_to_fourcc[i].i_fourcc == fcc ) break;
411 }
412 if( pi_tag ) *pi_tag = wave_format_tag_to_fourcc[i].i_tag;
413 }
414
415 /* If wFormatTag is WAVEFORMATEXTENSIBLE, we must look at the SubFormat tag
416 * to determine the actual format. Microsoft has stopped giving out wFormatTag
417 * assignments in lieu of letting 3rd parties generate their own GUIDs
418 */
419 static const struct
420 {
421 const GUID guid_tag;
422 const vlc_fourcc_t i_fourcc;
423 const char *psz_name;
424 }
425 sub_format_tag_to_fourcc[] =
426 {
427 { VLC_AMBISONIC_SUBTYPE_PCM, VLC_FOURCC( 'a', 'r', 'a', 'w' ), "Ambisonic B format (PCM)" },
428 { VLC_AMBISONIC_SUBTYPE_IEEE_FLOAT, VLC_FOURCC( 'a', 'f', 'l', 't' ), "Ambisonic B format (IEEE float)" },
429 { VLC_KSDATAFORMAT_SUBTYPE_ATRAC3P, VLC_CODEC_ATRAC3P, "Sony Atrac3+" },
430 { VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN, VLC_CODEC_UNKNOWN, "Unknown" }
431 };
432
guidcmpbase(const GUID * s1,const GUID * s2)433 static inline int guidcmpbase( const GUID *s1, const GUID *s2 )
434 {
435 return( s1->Data2 == s2->Data2 &&
436 s1->Data3 == s2->Data3 && !memcmp( s1->Data4, s2->Data4, 8 ) );
437 }
438
439 /* compares two GUIDs, returns 1 if identical, 0 otherwise */
guidcmp(const GUID * s1,const GUID * s2)440 static inline int guidcmp( const GUID *s1, const GUID *s2 )
441 {
442 return( s1->Data1 == s2->Data1 && guidcmpbase( s1, s2 ) );
443 }
444
445 #define GUID_FMT "0x%8.8x-0x%4.4x-0x%4.4x-0x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x"
446 #define GUID_PRINT( guid ) \
447 (unsigned)(guid).Data1, \
448 (guid).Data2, \
449 (guid).Data3, \
450 (guid).Data4[0],(guid).Data4[1],(guid).Data4[2],(guid).Data4[3], \
451 (guid).Data4[4],(guid).Data4[5],(guid).Data4[6],(guid).Data4[7]
452
453
sf_tag_to_fourcc(const GUID * guid_tag,vlc_fourcc_t * fcc,const char ** ppsz_name)454 static inline void sf_tag_to_fourcc( const GUID *guid_tag,
455 vlc_fourcc_t *fcc, const char **ppsz_name )
456 {
457 int i;
458 bool b_found = false;
459
460 const GUID unknown = VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN;
461 const GUID waveformatex = VLC_WAVEFORMATEX_GUIDBASE;
462
463 for( i = 0; !guidcmp( &sub_format_tag_to_fourcc[i].guid_tag,
464 &unknown ); i++ )
465 {
466 if( guidcmp( &sub_format_tag_to_fourcc[i].guid_tag, guid_tag ) )
467 {
468 b_found = true;
469 break;
470 }
471 }
472
473 if( !b_found && guidcmpbase(guid_tag, &waveformatex) )
474 {
475 wf_tag_to_fourcc(guid_tag->Data1, fcc, ppsz_name);
476 }
477 else
478 {
479 if( fcc ) *fcc = sub_format_tag_to_fourcc[i].i_fourcc;
480 if( ppsz_name ) *ppsz_name = sub_format_tag_to_fourcc[i].psz_name;
481 }
482 }
483
484 #endif /* "codecs.h" */
485