Commit | Line | Data |
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04d7f601 DB |
1 | /* |
2 | * copyright (c) 2001 Fabrice Bellard | |
3 | * | |
2912e87a | 4 | * This file is part of Libav. |
b78e7197 | 5 | * |
2912e87a | 6 | * Libav is free software; you can redistribute it and/or |
04d7f601 DB |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either | |
b78e7197 | 9 | * version 2.1 of the License, or (at your option) any later version. |
04d7f601 | 10 | * |
2912e87a | 11 | * Libav is distributed in the hope that it will be useful, |
04d7f601 DB |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
2912e87a | 17 | * License along with Libav; if not, write to the Free Software |
e5a389a1 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
04d7f601 DB |
19 | */ |
20 | ||
98790382 SS |
21 | #ifndef AVCODEC_AVCODEC_H |
22 | #define AVCODEC_AVCODEC_H | |
a96b68b7 | 23 | |
36df8805 | 24 | /** |
ba87f080 | 25 | * @file |
f5bccd85 | 26 | * external API header |
36df8805 MN |
27 | */ |
28 | ||
c60208e7 | 29 | #include <errno.h> |
737eb597 | 30 | #include "libavutil/samplefmt.h" |
76a448ed | 31 | #include "libavutil/avutil.h" |
7160bb71 | 32 | #include "libavutil/cpu.h" |
0b950fe2 | 33 | #include "libavutil/dict.h" |
abc78a5a | 34 | #include "libavutil/log.h" |
d49ea4af | 35 | #include "libavutil/pixfmt.h" |
e91709ca | 36 | #include "libavutil/rational.h" |
de6d9b64 | 37 | |
3dd851c4 | 38 | #include "libavcodec/version.h" |
e97e5a2e LB |
39 | /** |
40 | * @defgroup libavc Encoding/Decoding Library | |
41 | * @{ | |
42 | * | |
43 | * @defgroup lavc_decoding Decoding | |
44 | * @{ | |
45 | * @} | |
46 | * | |
47 | * @defgroup lavc_encoding Encoding | |
48 | * @{ | |
49 | * @} | |
50 | * | |
51 | * @defgroup lavc_codec Codecs | |
52 | * @{ | |
53 | * @defgroup lavc_codec_native Native Codecs | |
54 | * @{ | |
55 | * @} | |
56 | * @defgroup lavc_codec_wrappers External library wrappers | |
57 | * @{ | |
58 | * @} | |
59 | * @defgroup lavc_codec_hwaccel Hardware Accelerators bridge | |
60 | * @{ | |
61 | * @} | |
62 | * @} | |
63 | * @defgroup lavc_internal Internal | |
64 | * @{ | |
65 | * @} | |
66 | * @} | |
67 | * | |
68 | */ | |
69 | ||
294b3a50 AK |
70 | /** |
71 | * @defgroup lavc_core Core functions/structures. | |
72 | * @ingroup libavc | |
73 | * | |
74 | * Basic definitions, functions for querying libavcodec capabilities, | |
75 | * allocating core structures, etc. | |
76 | * @{ | |
77 | */ | |
eda7c983 | 78 | |
104e10fb | 79 | |
7ebf5927 | 80 | /** |
48966b02 | 81 | * Identify the syntax and semantics of the bitstream. |
6b0cdb6e NG |
82 | * The principle is roughly: |
83 | * Two decoders with the same ID can decode the same streams. | |
84 | * Two encoders with the same ID can encode compatible streams. | |
85 | * There may be slight deviations from the principle due to implementation | |
86 | * details. | |
7ebf5927 | 87 | * |
f5bccd85 DB |
88 | * If you add a codec ID to this list, add it so that |
89 | * 1. no value of a existing codec ID changes (that would break ABI), | |
90 | * 2. it is as close as possible to similar codecs. | |
7ebf5927 | 91 | */ |
104e10fb AK |
92 | enum AVCodecID { |
93 | AV_CODEC_ID_NONE, | |
ba0dabbf DB |
94 | |
95 | /* video codecs */ | |
104e10fb AK |
96 | AV_CODEC_ID_MPEG1VIDEO, |
97 | AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding | |
98 | AV_CODEC_ID_MPEG2VIDEO_XVMC, | |
99 | AV_CODEC_ID_H261, | |
100 | AV_CODEC_ID_H263, | |
101 | AV_CODEC_ID_RV10, | |
102 | AV_CODEC_ID_RV20, | |
103 | AV_CODEC_ID_MJPEG, | |
104 | AV_CODEC_ID_MJPEGB, | |
105 | AV_CODEC_ID_LJPEG, | |
106 | AV_CODEC_ID_SP5X, | |
107 | AV_CODEC_ID_JPEGLS, | |
108 | AV_CODEC_ID_MPEG4, | |
109 | AV_CODEC_ID_RAWVIDEO, | |
110 | AV_CODEC_ID_MSMPEG4V1, | |
111 | AV_CODEC_ID_MSMPEG4V2, | |
112 | AV_CODEC_ID_MSMPEG4V3, | |
113 | AV_CODEC_ID_WMV1, | |
114 | AV_CODEC_ID_WMV2, | |
115 | AV_CODEC_ID_H263P, | |
116 | AV_CODEC_ID_H263I, | |
117 | AV_CODEC_ID_FLV1, | |
118 | AV_CODEC_ID_SVQ1, | |
119 | AV_CODEC_ID_SVQ3, | |
120 | AV_CODEC_ID_DVVIDEO, | |
121 | AV_CODEC_ID_HUFFYUV, | |
122 | AV_CODEC_ID_CYUV, | |
123 | AV_CODEC_ID_H264, | |
124 | AV_CODEC_ID_INDEO3, | |
125 | AV_CODEC_ID_VP3, | |
126 | AV_CODEC_ID_THEORA, | |
127 | AV_CODEC_ID_ASV1, | |
128 | AV_CODEC_ID_ASV2, | |
129 | AV_CODEC_ID_FFV1, | |
130 | AV_CODEC_ID_4XM, | |
131 | AV_CODEC_ID_VCR1, | |
132 | AV_CODEC_ID_CLJR, | |
133 | AV_CODEC_ID_MDEC, | |
134 | AV_CODEC_ID_ROQ, | |
135 | AV_CODEC_ID_INTERPLAY_VIDEO, | |
136 | AV_CODEC_ID_XAN_WC3, | |
137 | AV_CODEC_ID_XAN_WC4, | |
138 | AV_CODEC_ID_RPZA, | |
139 | AV_CODEC_ID_CINEPAK, | |
140 | AV_CODEC_ID_WS_VQA, | |
141 | AV_CODEC_ID_MSRLE, | |
142 | AV_CODEC_ID_MSVIDEO1, | |
143 | AV_CODEC_ID_IDCIN, | |
144 | AV_CODEC_ID_8BPS, | |
145 | AV_CODEC_ID_SMC, | |
146 | AV_CODEC_ID_FLIC, | |
147 | AV_CODEC_ID_TRUEMOTION1, | |
148 | AV_CODEC_ID_VMDVIDEO, | |
149 | AV_CODEC_ID_MSZH, | |
150 | AV_CODEC_ID_ZLIB, | |
151 | AV_CODEC_ID_QTRLE, | |
152 | AV_CODEC_ID_SNOW, | |
153 | AV_CODEC_ID_TSCC, | |
154 | AV_CODEC_ID_ULTI, | |
155 | AV_CODEC_ID_QDRAW, | |
156 | AV_CODEC_ID_VIXL, | |
157 | AV_CODEC_ID_QPEG, | |
158 | AV_CODEC_ID_PNG, | |
159 | AV_CODEC_ID_PPM, | |
160 | AV_CODEC_ID_PBM, | |
161 | AV_CODEC_ID_PGM, | |
162 | AV_CODEC_ID_PGMYUV, | |
163 | AV_CODEC_ID_PAM, | |
164 | AV_CODEC_ID_FFVHUFF, | |
165 | AV_CODEC_ID_RV30, | |
166 | AV_CODEC_ID_RV40, | |
167 | AV_CODEC_ID_VC1, | |
168 | AV_CODEC_ID_WMV3, | |
169 | AV_CODEC_ID_LOCO, | |
170 | AV_CODEC_ID_WNV1, | |
171 | AV_CODEC_ID_AASC, | |
172 | AV_CODEC_ID_INDEO2, | |
173 | AV_CODEC_ID_FRAPS, | |
174 | AV_CODEC_ID_TRUEMOTION2, | |
175 | AV_CODEC_ID_BMP, | |
176 | AV_CODEC_ID_CSCD, | |
177 | AV_CODEC_ID_MMVIDEO, | |
178 | AV_CODEC_ID_ZMBV, | |
179 | AV_CODEC_ID_AVS, | |
180 | AV_CODEC_ID_SMACKVIDEO, | |
181 | AV_CODEC_ID_NUV, | |
182 | AV_CODEC_ID_KMVC, | |
183 | AV_CODEC_ID_FLASHSV, | |
184 | AV_CODEC_ID_CAVS, | |
185 | AV_CODEC_ID_JPEG2000, | |
186 | AV_CODEC_ID_VMNC, | |
187 | AV_CODEC_ID_VP5, | |
188 | AV_CODEC_ID_VP6, | |
189 | AV_CODEC_ID_VP6F, | |
190 | AV_CODEC_ID_TARGA, | |
191 | AV_CODEC_ID_DSICINVIDEO, | |
192 | AV_CODEC_ID_TIERTEXSEQVIDEO, | |
193 | AV_CODEC_ID_TIFF, | |
194 | AV_CODEC_ID_GIF, | |
195 | AV_CODEC_ID_DXA, | |
196 | AV_CODEC_ID_DNXHD, | |
197 | AV_CODEC_ID_THP, | |
198 | AV_CODEC_ID_SGI, | |
199 | AV_CODEC_ID_C93, | |
200 | AV_CODEC_ID_BETHSOFTVID, | |
201 | AV_CODEC_ID_PTX, | |
202 | AV_CODEC_ID_TXD, | |
203 | AV_CODEC_ID_VP6A, | |
204 | AV_CODEC_ID_AMV, | |
205 | AV_CODEC_ID_VB, | |
206 | AV_CODEC_ID_PCX, | |
207 | AV_CODEC_ID_SUNRAST, | |
208 | AV_CODEC_ID_INDEO4, | |
209 | AV_CODEC_ID_INDEO5, | |
210 | AV_CODEC_ID_MIMIC, | |
211 | AV_CODEC_ID_RL2, | |
212 | AV_CODEC_ID_ESCAPE124, | |
213 | AV_CODEC_ID_DIRAC, | |
214 | AV_CODEC_ID_BFI, | |
215 | AV_CODEC_ID_CMV, | |
216 | AV_CODEC_ID_MOTIONPIXELS, | |
217 | AV_CODEC_ID_TGV, | |
218 | AV_CODEC_ID_TGQ, | |
219 | AV_CODEC_ID_TQI, | |
220 | AV_CODEC_ID_AURA, | |
221 | AV_CODEC_ID_AURA2, | |
222 | AV_CODEC_ID_V210X, | |
223 | AV_CODEC_ID_TMV, | |
224 | AV_CODEC_ID_V210, | |
225 | AV_CODEC_ID_DPX, | |
226 | AV_CODEC_ID_MAD, | |
227 | AV_CODEC_ID_FRWU, | |
228 | AV_CODEC_ID_FLASHSV2, | |
229 | AV_CODEC_ID_CDGRAPHICS, | |
230 | AV_CODEC_ID_R210, | |
231 | AV_CODEC_ID_ANM, | |
232 | AV_CODEC_ID_BINKVIDEO, | |
233 | AV_CODEC_ID_IFF_ILBM, | |
234 | AV_CODEC_ID_IFF_BYTERUN1, | |
235 | AV_CODEC_ID_KGV1, | |
236 | AV_CODEC_ID_YOP, | |
237 | AV_CODEC_ID_VP8, | |
238 | AV_CODEC_ID_PICTOR, | |
239 | AV_CODEC_ID_ANSI, | |
240 | AV_CODEC_ID_A64_MULTI, | |
241 | AV_CODEC_ID_A64_MULTI5, | |
242 | AV_CODEC_ID_R10K, | |
243 | AV_CODEC_ID_MXPEG, | |
244 | AV_CODEC_ID_LAGARITH, | |
245 | AV_CODEC_ID_PRORES, | |
246 | AV_CODEC_ID_JV, | |
247 | AV_CODEC_ID_DFA, | |
248 | AV_CODEC_ID_WMV3IMAGE, | |
249 | AV_CODEC_ID_VC1IMAGE, | |
250 | AV_CODEC_ID_UTVIDEO, | |
251 | AV_CODEC_ID_BMV_VIDEO, | |
252 | AV_CODEC_ID_VBLE, | |
253 | AV_CODEC_ID_DXTORY, | |
254 | AV_CODEC_ID_V410, | |
255 | AV_CODEC_ID_XWD, | |
256 | AV_CODEC_ID_CDXL, | |
257 | AV_CODEC_ID_XBM, | |
258 | AV_CODEC_ID_ZEROCODEC, | |
259 | AV_CODEC_ID_MSS1, | |
260 | AV_CODEC_ID_MSA1, | |
261 | AV_CODEC_ID_TSCC2, | |
262 | AV_CODEC_ID_MTS2, | |
263 | AV_CODEC_ID_CLLC, | |
40c5ee99 | 264 | |
f5bccd85 | 265 | /* various PCM "codecs" */ |
104e10fb AK |
266 | AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs |
267 | AV_CODEC_ID_PCM_S16LE = 0x10000, | |
268 | AV_CODEC_ID_PCM_S16BE, | |
269 | AV_CODEC_ID_PCM_U16LE, | |
270 | AV_CODEC_ID_PCM_U16BE, | |
271 | AV_CODEC_ID_PCM_S8, | |
272 | AV_CODEC_ID_PCM_U8, | |
273 | AV_CODEC_ID_PCM_MULAW, | |
274 | AV_CODEC_ID_PCM_ALAW, | |
275 | AV_CODEC_ID_PCM_S32LE, | |
276 | AV_CODEC_ID_PCM_S32BE, | |
277 | AV_CODEC_ID_PCM_U32LE, | |
278 | AV_CODEC_ID_PCM_U32BE, | |
279 | AV_CODEC_ID_PCM_S24LE, | |
280 | AV_CODEC_ID_PCM_S24BE, | |
281 | AV_CODEC_ID_PCM_U24LE, | |
282 | AV_CODEC_ID_PCM_U24BE, | |
283 | AV_CODEC_ID_PCM_S24DAUD, | |
284 | AV_CODEC_ID_PCM_ZORK, | |
285 | AV_CODEC_ID_PCM_S16LE_PLANAR, | |
286 | AV_CODEC_ID_PCM_DVD, | |
287 | AV_CODEC_ID_PCM_F32BE, | |
288 | AV_CODEC_ID_PCM_F32LE, | |
289 | AV_CODEC_ID_PCM_F64BE, | |
290 | AV_CODEC_ID_PCM_F64LE, | |
291 | AV_CODEC_ID_PCM_BLURAY, | |
292 | AV_CODEC_ID_PCM_LXF, | |
293 | AV_CODEC_ID_S302M, | |
294 | AV_CODEC_ID_PCM_S8_PLANAR, | |
0147f198 | 295 | |
f5bccd85 | 296 | /* various ADPCM codecs */ |
104e10fb AK |
297 | AV_CODEC_ID_ADPCM_IMA_QT = 0x11000, |
298 | AV_CODEC_ID_ADPCM_IMA_WAV, | |
299 | AV_CODEC_ID_ADPCM_IMA_DK3, | |
300 | AV_CODEC_ID_ADPCM_IMA_DK4, | |
301 | AV_CODEC_ID_ADPCM_IMA_WS, | |
302 | AV_CODEC_ID_ADPCM_IMA_SMJPEG, | |
303 | AV_CODEC_ID_ADPCM_MS, | |
304 | AV_CODEC_ID_ADPCM_4XM, | |
305 | AV_CODEC_ID_ADPCM_XA, | |
306 | AV_CODEC_ID_ADPCM_ADX, | |
307 | AV_CODEC_ID_ADPCM_EA, | |
308 | AV_CODEC_ID_ADPCM_G726, | |
309 | AV_CODEC_ID_ADPCM_CT, | |
310 | AV_CODEC_ID_ADPCM_SWF, | |
311 | AV_CODEC_ID_ADPCM_YAMAHA, | |
312 | AV_CODEC_ID_ADPCM_SBPRO_4, | |
313 | AV_CODEC_ID_ADPCM_SBPRO_3, | |
314 | AV_CODEC_ID_ADPCM_SBPRO_2, | |
315 | AV_CODEC_ID_ADPCM_THP, | |
316 | AV_CODEC_ID_ADPCM_IMA_AMV, | |
317 | AV_CODEC_ID_ADPCM_EA_R1, | |
318 | AV_CODEC_ID_ADPCM_EA_R3, | |
319 | AV_CODEC_ID_ADPCM_EA_R2, | |
320 | AV_CODEC_ID_ADPCM_IMA_EA_SEAD, | |
321 | AV_CODEC_ID_ADPCM_IMA_EA_EACS, | |
322 | AV_CODEC_ID_ADPCM_EA_XAS, | |
323 | AV_CODEC_ID_ADPCM_EA_MAXIS_XA, | |
324 | AV_CODEC_ID_ADPCM_IMA_ISS, | |
325 | AV_CODEC_ID_ADPCM_G722, | |
326 | AV_CODEC_ID_ADPCM_IMA_APC, | |
891f64b3 | 327 | |
17179d2d | 328 | /* AMR */ |
104e10fb AK |
329 | AV_CODEC_ID_AMR_NB = 0x12000, |
330 | AV_CODEC_ID_AMR_WB, | |
d663a1fd | 331 | |
b8414bbd | 332 | /* RealAudio codecs*/ |
104e10fb AK |
333 | AV_CODEC_ID_RA_144 = 0x13000, |
334 | AV_CODEC_ID_RA_288, | |
3ef8be2b MM |
335 | |
336 | /* various DPCM codecs */ | |
104e10fb AK |
337 | AV_CODEC_ID_ROQ_DPCM = 0x14000, |
338 | AV_CODEC_ID_INTERPLAY_DPCM, | |
339 | AV_CODEC_ID_XAN_DPCM, | |
340 | AV_CODEC_ID_SOL_DPCM, | |
115329f1 | 341 | |
ba0dabbf | 342 | /* audio codecs */ |
104e10fb AK |
343 | AV_CODEC_ID_MP2 = 0x15000, |
344 | AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3 | |
345 | AV_CODEC_ID_AAC, | |
346 | AV_CODEC_ID_AC3, | |
347 | AV_CODEC_ID_DTS, | |
348 | AV_CODEC_ID_VORBIS, | |
349 | AV_CODEC_ID_DVAUDIO, | |
350 | AV_CODEC_ID_WMAV1, | |
351 | AV_CODEC_ID_WMAV2, | |
352 | AV_CODEC_ID_MACE3, | |
353 | AV_CODEC_ID_MACE6, | |
354 | AV_CODEC_ID_VMDAUDIO, | |
355 | AV_CODEC_ID_FLAC, | |
356 | AV_CODEC_ID_MP3ADU, | |
357 | AV_CODEC_ID_MP3ON4, | |
358 | AV_CODEC_ID_SHORTEN, | |
359 | AV_CODEC_ID_ALAC, | |
360 | AV_CODEC_ID_WESTWOOD_SND1, | |
361 | AV_CODEC_ID_GSM, ///< as in Berlin toast format | |
362 | AV_CODEC_ID_QDM2, | |
363 | AV_CODEC_ID_COOK, | |
364 | AV_CODEC_ID_TRUESPEECH, | |
365 | AV_CODEC_ID_TTA, | |
366 | AV_CODEC_ID_SMACKAUDIO, | |
367 | AV_CODEC_ID_QCELP, | |
368 | AV_CODEC_ID_WAVPACK, | |
369 | AV_CODEC_ID_DSICINAUDIO, | |
370 | AV_CODEC_ID_IMC, | |
371 | AV_CODEC_ID_MUSEPACK7, | |
372 | AV_CODEC_ID_MLP, | |
373 | AV_CODEC_ID_GSM_MS, /* as found in WAV */ | |
374 | AV_CODEC_ID_ATRAC3, | |
375 | AV_CODEC_ID_VOXWARE, | |
376 | AV_CODEC_ID_APE, | |
377 | AV_CODEC_ID_NELLYMOSER, | |
378 | AV_CODEC_ID_MUSEPACK8, | |
379 | AV_CODEC_ID_SPEEX, | |
380 | AV_CODEC_ID_WMAVOICE, | |
381 | AV_CODEC_ID_WMAPRO, | |
382 | AV_CODEC_ID_WMALOSSLESS, | |
383 | AV_CODEC_ID_ATRAC3P, | |
384 | AV_CODEC_ID_EAC3, | |
385 | AV_CODEC_ID_SIPR, | |
386 | AV_CODEC_ID_MP1, | |
387 | AV_CODEC_ID_TWINVQ, | |
388 | AV_CODEC_ID_TRUEHD, | |
389 | AV_CODEC_ID_MP4ALS, | |
390 | AV_CODEC_ID_ATRAC1, | |
391 | AV_CODEC_ID_BINKAUDIO_RDFT, | |
392 | AV_CODEC_ID_BINKAUDIO_DCT, | |
393 | AV_CODEC_ID_AAC_LATM, | |
394 | AV_CODEC_ID_QDMC, | |
395 | AV_CODEC_ID_CELT, | |
396 | AV_CODEC_ID_G723_1, | |
397 | AV_CODEC_ID_G729, | |
398 | AV_CODEC_ID_8SVX_EXP, | |
399 | AV_CODEC_ID_8SVX_FIB, | |
400 | AV_CODEC_ID_BMV_AUDIO, | |
401 | AV_CODEC_ID_RALF, | |
402 | AV_CODEC_ID_IAC, | |
403 | AV_CODEC_ID_ILBC, | |
115329f1 | 404 | |
240c1657 | 405 | /* subtitle codecs */ |
104e10fb AK |
406 | AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs. |
407 | AV_CODEC_ID_DVD_SUBTITLE = 0x17000, | |
408 | AV_CODEC_ID_DVB_SUBTITLE, | |
409 | AV_CODEC_ID_TEXT, ///< raw UTF-8 text | |
410 | AV_CODEC_ID_XSUB, | |
411 | AV_CODEC_ID_SSA, | |
412 | AV_CODEC_ID_MOV_TEXT, | |
413 | AV_CODEC_ID_HDMV_PGS_SUBTITLE, | |
414 | AV_CODEC_ID_DVB_TELETEXT, | |
415 | AV_CODEC_ID_SRT, | |
115329f1 | 416 | |
7ce68923 | 417 | /* other specific kind of codecs (generally used for attachments) */ |
104e10fb AK |
418 | AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs. |
419 | AV_CODEC_ID_TTF = 0x18000, | |
f8d7c9d3 | 420 | |
104e10fb | 421 | AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it |
0bef08e5 | 422 | |
104e10fb | 423 | AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS |
f5bccd85 | 424 | * stream (only used by libavformat) */ |
104e10fb | 425 | AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems |
77b5c82b | 426 | * stream (only used by libavformat) */ |
104e10fb | 427 | AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information. |
2ff67c90 AK |
428 | |
429 | #if FF_API_CODEC_ID | |
430 | #include "old_codec_ids.h" | |
431 | #endif | |
de6d9b64 | 432 | }; |
dcedf586 | 433 | |
2ff67c90 AK |
434 | #if FF_API_CODEC_ID |
435 | #define CodecID AVCodecID | |
436 | #endif | |
437 | ||
0eea2129 | 438 | #if FF_API_OLD_DECODE_AUDIO |
de6d9b64 | 439 | /* in bytes */ |
8170e5fb | 440 | #define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio |
0eea2129 | 441 | #endif |
de6d9b64 | 442 | |
d7425f59 | 443 | /** |
c8ef8464 | 444 | * @ingroup lavc_decoding |
cf713bb8 | 445 | * Required number of additionally allocated bytes at the end of the input bitstream for decoding. |
171b7b91 AC |
446 | * This is mainly needed because some optimized bitstream readers read |
447 | * 32 or 64 bit at once and could read over the end.<br> | |
f5bccd85 DB |
448 | * Note: If the first 23 bits of the additional bytes are not 0, then damaged |
449 | * MPEG bitstreams could cause overread and segfault. | |
d7425f59 | 450 | */ |
171b7b91 | 451 | #define FF_INPUT_BUFFER_PADDING_SIZE 8 |
d7425f59 | 452 | |
0ecca7a4 | 453 | /** |
f038515f | 454 | * @ingroup lavc_encoding |
f5bccd85 DB |
455 | * minimum encoding buffer size |
456 | * Used to avoid some checks during header writing. | |
0ecca7a4 MN |
457 | */ |
458 | #define FF_MIN_BUFFER_SIZE 16384 | |
459 | ||
47146dfb | 460 | |
0e373b95 | 461 | /** |
f038515f | 462 | * @ingroup lavc_encoding |
bafc102b | 463 | * motion estimation type. |
0e373b95 | 464 | */ |
e4986da9 | 465 | enum Motion_Est_ID { |
9b4dd1b8 | 466 | ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed |
e4986da9 J |
467 | ME_FULL, |
468 | ME_LOG, | |
469 | ME_PHODS, | |
9b4dd1b8 MN |
470 | ME_EPZS, ///< enhanced predictive zonal search |
471 | ME_X1, ///< reserved for experiments | |
472 | ME_HEX, ///< hexagon based search | |
473 | ME_UMH, ///< uneven multi-hexagon search | |
474 | ME_ITER, ///< iterative search | |
359bbdab | 475 | ME_TESA, ///< transformed exhaustive search algorithm |
e4986da9 J |
476 | }; |
477 | ||
c8ef8464 AK |
478 | /** |
479 | * @ingroup lavc_decoding | |
480 | */ | |
8c3eba7c | 481 | enum AVDiscard{ |
f5bccd85 DB |
482 | /* We leave some space between them for extensions (drop some |
483 | * keyframes for intra-only or drop just some bidir frames). */ | |
ccc2dfbc LB |
484 | AVDISCARD_NONE =-16, ///< discard nothing |
485 | AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi | |
486 | AVDISCARD_NONREF = 8, ///< discard all non reference | |
487 | AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames | |
488 | AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes | |
489 | AVDISCARD_ALL = 48, ///< discard all | |
8c3eba7c MN |
490 | }; |
491 | ||
4ee6a5c1 | 492 | enum AVColorPrimaries{ |
ccc2dfbc LB |
493 | AVCOL_PRI_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B |
494 | AVCOL_PRI_UNSPECIFIED = 2, | |
495 | AVCOL_PRI_BT470M = 4, | |
496 | AVCOL_PRI_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM | |
497 | AVCOL_PRI_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC | |
498 | AVCOL_PRI_SMPTE240M = 7, ///< functionally identical to above | |
499 | AVCOL_PRI_FILM = 8, | |
500 | AVCOL_PRI_NB , ///< Not part of ABI | |
4ee6a5c1 MN |
501 | }; |
502 | ||
503 | enum AVColorTransferCharacteristic{ | |
ccc2dfbc LB |
504 | AVCOL_TRC_BT709 = 1, ///< also ITU-R BT1361 |
505 | AVCOL_TRC_UNSPECIFIED = 2, | |
506 | AVCOL_TRC_GAMMA22 = 4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM | |
507 | AVCOL_TRC_GAMMA28 = 5, ///< also ITU-R BT470BG | |
ca93f0fa | 508 | AVCOL_TRC_SMPTE240M = 7, |
ccc2dfbc | 509 | AVCOL_TRC_NB , ///< Not part of ABI |
4ee6a5c1 MN |
510 | }; |
511 | ||
512 | enum AVColorSpace{ | |
ccc2dfbc LB |
513 | AVCOL_SPC_RGB = 0, |
514 | AVCOL_SPC_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B | |
515 | AVCOL_SPC_UNSPECIFIED = 2, | |
516 | AVCOL_SPC_FCC = 4, | |
517 | AVCOL_SPC_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 | |
518 | AVCOL_SPC_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above | |
519 | AVCOL_SPC_SMPTE240M = 7, | |
85395ba7 | 520 | AVCOL_SPC_YCOCG = 8, ///< Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16 |
ccc2dfbc | 521 | AVCOL_SPC_NB , ///< Not part of ABI |
4ee6a5c1 MN |
522 | }; |
523 | ||
524 | enum AVColorRange{ | |
ccc2dfbc LB |
525 | AVCOL_RANGE_UNSPECIFIED = 0, |
526 | AVCOL_RANGE_MPEG = 1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges | |
527 | AVCOL_RANGE_JPEG = 2, ///< the normal 2^n-1 "JPEG" YUV ranges | |
528 | AVCOL_RANGE_NB , ///< Not part of ABI | |
4ee6a5c1 MN |
529 | }; |
530 | ||
580a7465 DC |
531 | /** |
532 | * X X 3 4 X X are luma samples, | |
533 | * 1 2 1-6 are possible chroma positions | |
534 | * X X 5 6 X 0 is undefined/unknown position | |
535 | */ | |
536 | enum AVChromaLocation{ | |
ccc2dfbc LB |
537 | AVCHROMA_LOC_UNSPECIFIED = 0, |
538 | AVCHROMA_LOC_LEFT = 1, ///< mpeg2/4, h264 default | |
539 | AVCHROMA_LOC_CENTER = 2, ///< mpeg1, jpeg, h263 | |
540 | AVCHROMA_LOC_TOPLEFT = 3, ///< DV | |
541 | AVCHROMA_LOC_TOP = 4, | |
542 | AVCHROMA_LOC_BOTTOMLEFT = 5, | |
543 | AVCHROMA_LOC_BOTTOM = 6, | |
544 | AVCHROMA_LOC_NB , ///< Not part of ABI | |
580a7465 DC |
545 | }; |
546 | ||
34b47d7c JR |
547 | enum AVAudioServiceType { |
548 | AV_AUDIO_SERVICE_TYPE_MAIN = 0, | |
549 | AV_AUDIO_SERVICE_TYPE_EFFECTS = 1, | |
550 | AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2, | |
551 | AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3, | |
552 | AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4, | |
553 | AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5, | |
554 | AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6, | |
555 | AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7, | |
556 | AV_AUDIO_SERVICE_TYPE_KARAOKE = 8, | |
557 | AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI | |
558 | }; | |
559 | ||
f038515f AK |
560 | /** |
561 | * @ingroup lavc_encoding | |
562 | */ | |
ce980a95 MN |
563 | typedef struct RcOverride{ |
564 | int start_frame; | |
565 | int end_frame; | |
f5bccd85 | 566 | int qscale; // If this is 0 then quality_factor will be used instead. |
ce980a95 MN |
567 | float quality_factor; |
568 | } RcOverride; | |
569 | ||
b0ec9efd | 570 | #define FF_MAX_B_FRAMES 16 |
9dbcbd92 | 571 | |
a949d72e | 572 | /* encoding support |
f5bccd85 DB |
573 | These flags can be passed in AVCodecContext.flags before initialization. |
574 | Note: Not everything is supported yet. | |
a949d72e | 575 | */ |
de6d9b64 | 576 | |
f5bccd85 DB |
577 | #define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale. |
578 | #define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263. | |
579 | #define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC. | |
580 | #define CODEC_FLAG_GMC 0x0020 ///< Use GMC. | |
581 | #define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>. | |
1ba8f5eb MN |
582 | /** |
583 | * The parent program guarantees that the input for B-frames containing | |
f5bccd85 | 584 | * streams is not written to for at least s->max_b_frames+1 frames, if |
1ba8f5eb MN |
585 | * this is not set the input will be copied. |
586 | */ | |
8b4c7dbc | 587 | #define CODEC_FLAG_INPUT_PRESERVED 0x0100 |
273b0cd3 DB |
588 | #define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode. |
589 | #define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode. | |
273b0cd3 DB |
590 | #define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale. |
591 | #define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges. | |
592 | #define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding. | |
593 | #define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random | |
594 | location instead of only at frame boundaries. */ | |
f5bccd85 DB |
595 | #define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< Normalize adaptive quantization. |
596 | #define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT. | |
597 | #define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay. | |
f5bccd85 DB |
598 | #define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe. |
599 | #define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT). | |
21e59552 | 600 | /* Fx : Flag for h263+ extra options */ |
f5bccd85 | 601 | #define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction |
332f9ac4 | 602 | #define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter |
bb198e19 | 603 | #define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation |
f3eec1cf | 604 | #define CODEC_FLAG_CLOSED_GOP 0x80000000 |
f5bccd85 | 605 | #define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks. |
f5bccd85 DB |
606 | #define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding. |
607 | #define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata. | |
ed019b8e | 608 | #if FF_API_MPV_GLOBAL_OPTS |
af3d804f | 609 | #define CODEC_FLAG_CBP_RD 0x04000000 ///< Use rate distortion optimization for cbp. |
ff71a383 | 610 | #define CODEC_FLAG_QP_RD 0x08000000 ///< Use rate distortion optimization for qp selectioon. |
a249f0cc | 611 | #define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size. |
f013cb81 | 612 | #define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping |
ed019b8e | 613 | #endif |
f013cb81 | 614 | #define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries. |
6fc5b059 | 615 | |
21e59552 | 616 | /* Unsupported options : |
bb270c08 DB |
617 | * Syntax Arithmetic coding (SAC) |
618 | * Reference Picture Selection | |
eafcac6a | 619 | * Independent Segment Decoding */ |
21e59552 | 620 | /* /Fx */ |
bf89e6b1 FB |
621 | /* codec capabilities */ |
622 | ||
f5bccd85 | 623 | #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback. |
6814a25c | 624 | /** |
9b489e02 RD |
625 | * Codec uses get_buffer() for allocating buffers and supports custom allocators. |
626 | * If not set, it might not use get_buffer() at all or use operations that | |
627 | * assume the buffer was allocated by avcodec_default_get_buffer. | |
6814a25c MN |
628 | */ |
629 | #define CODEC_CAP_DR1 0x0002 | |
d7425f59 | 630 | #define CODEC_CAP_TRUNCATED 0x0008 |
f5bccd85 | 631 | /* Codec can export data for HW decoding (XvMC). */ |
5e5c247a | 632 | #define CODEC_CAP_HWACCEL 0x0010 |
115329f1 | 633 | /** |
3f6aa85e JR |
634 | * Encoder or decoder requires flushing with NULL input at the end in order to |
635 | * give the complete and correct output. | |
636 | * | |
637 | * NOTE: If this flag is not set, the codec is guaranteed to never be fed with | |
638 | * with NULL data. The user can still send NULL data to the public encode | |
639 | * or decode function, but libavcodec will not pass it along to the codec | |
640 | * unless this flag is set. | |
641 | * | |
642 | * Decoders: | |
643 | * The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL, | |
ffeeae92 | 644 | * avpkt->size=0 at the end to get the delayed data until the decoder no longer |
3f6aa85e JR |
645 | * returns frames. |
646 | * | |
647 | * Encoders: | |
648 | * The encoder needs to be fed with NULL data at the end of encoding until the | |
649 | * encoder no longer returns data. | |
b2c75b6e JR |
650 | * |
651 | * NOTE: For encoders implementing the AVCodec.encode2() function, setting this | |
652 | * flag also means that the encoder must set the pts and duration for | |
653 | * each output packet. If this flag is not set, the pts and duration will | |
654 | * be determined by libavcodec from the input frame. | |
934982c4 | 655 | */ |
6f824977 | 656 | #define CODEC_CAP_DELAY 0x0020 |
cef7cc72 JR |
657 | /** |
658 | * Codec can be fed a final frame with a smaller size. | |
659 | * This can be used to prevent truncation of the last audio samples. | |
660 | */ | |
661 | #define CODEC_CAP_SMALL_LAST_FRAME 0x0040 | |
369122dd NC |
662 | /** |
663 | * Codec can export data for HW decoding (VDPAU). | |
664 | */ | |
665 | #define CODEC_CAP_HWACCEL_VDPAU 0x0080 | |
d859bb1d SS |
666 | /** |
667 | * Codec can output multiple frames per AVPacket | |
e9e949cf MN |
668 | * Normally demuxers return one frame at a time, demuxers which do not do |
669 | * are connected to a parser to split what they return into proper frames. | |
670 | * This flag is reserved to the very rare category of codecs which have a | |
671 | * bitstream that cannot be split into frames without timeconsuming | |
672 | * operations like full decoding. Demuxers carring such bitstreams thus | |
673 | * may return multiple frames in a packet. This has many disadvantages like | |
674 | * prohibiting stream copy in many cases thus it should only be considered | |
675 | * as a last resort. | |
d859bb1d SS |
676 | */ |
677 | #define CODEC_CAP_SUBFRAMES 0x0100 | |
93ebfeea JG |
678 | /** |
679 | * Codec is experimental and is thus avoided in favor of non experimental | |
680 | * encoders | |
681 | */ | |
682 | #define CODEC_CAP_EXPERIMENTAL 0x0200 | |
62784e37 BL |
683 | /** |
684 | * Codec should fill in channel configuration and samplerate instead of container | |
685 | */ | |
686 | #define CODEC_CAP_CHANNEL_CONF 0x0400 | |
16cfc961 SS |
687 | /** |
688 | * Codec is able to deal with negative linesizes | |
689 | */ | |
690 | #define CODEC_CAP_NEG_LINESIZES 0x0800 | |
37b00b47 AS |
691 | /** |
692 | * Codec supports frame-level multithreading. | |
693 | */ | |
694 | #define CODEC_CAP_FRAME_THREADS 0x1000 | |
94f7451a RB |
695 | /** |
696 | * Codec supports slice-based (or partition-based) multithreading. | |
697 | */ | |
698 | #define CODEC_CAP_SLICE_THREADS 0x2000 | |
fe75dc85 MS |
699 | /** |
700 | * Codec supports changed parameters at any point. | |
701 | */ | |
702 | #define CODEC_CAP_PARAM_CHANGE 0x4000 | |
b4d44a45 JG |
703 | /** |
704 | * Codec supports avctx->thread_count == 0 (auto). | |
705 | */ | |
706 | #define CODEC_CAP_AUTO_THREADS 0x8000 | |
b2c75b6e JR |
707 | /** |
708 | * Audio encoder supports receiving a different number of samples in each call. | |
709 | */ | |
710 | #define CODEC_CAP_VARIABLE_FRAME_SIZE 0x10000 | |
bf89e6b1 | 711 | |
f5bccd85 | 712 | //The following defines may change, don't expect compatibility if you use them. |
8d7ec294 | 713 | #define MB_TYPE_INTRA4x4 0x0001 |
f5bccd85 DB |
714 | #define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific |
715 | #define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific | |
8d7ec294 WH |
716 | #define MB_TYPE_16x16 0x0008 |
717 | #define MB_TYPE_16x8 0x0010 | |
718 | #define MB_TYPE_8x16 0x0020 | |
719 | #define MB_TYPE_8x8 0x0040 | |
720 | #define MB_TYPE_INTERLACED 0x0080 | |
273b0cd3 | 721 | #define MB_TYPE_DIRECT2 0x0100 //FIXME |
8d7ec294 WH |
722 | #define MB_TYPE_ACPRED 0x0200 |
723 | #define MB_TYPE_GMC 0x0400 | |
724 | #define MB_TYPE_SKIP 0x0800 | |
725 | #define MB_TYPE_P0L0 0x1000 | |
726 | #define MB_TYPE_P1L0 0x2000 | |
727 | #define MB_TYPE_P0L1 0x4000 | |
728 | #define MB_TYPE_P1L1 0x8000 | |
729 | #define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) | |
730 | #define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) | |
731 | #define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) | |
732 | #define MB_TYPE_QUANT 0x00010000 | |
733 | #define MB_TYPE_CBP 0x00020000 | |
734 | //Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...) | |
735 | ||
fa384dcc MN |
736 | /** |
737 | * Pan Scan area. | |
f5bccd85 DB |
738 | * This specifies the area which should be displayed. |
739 | * Note there may be multiple such areas for one frame. | |
fa384dcc MN |
740 | */ |
741 | typedef struct AVPanScan{ | |
742 | /** | |
f5bccd85 DB |
743 | * id |
744 | * - encoding: Set by user. | |
745 | * - decoding: Set by libavcodec. | |
fa384dcc MN |
746 | */ |
747 | int id; | |
748 | ||
749 | /** | |
750 | * width and height in 1/16 pel | |
f5bccd85 DB |
751 | * - encoding: Set by user. |
752 | * - decoding: Set by libavcodec. | |
fa384dcc MN |
753 | */ |
754 | int width; | |
755 | int height; | |
756 | ||
757 | /** | |
f5bccd85 DB |
758 | * position of the top left corner in 1/16 pel for up to 3 fields/frames |
759 | * - encoding: Set by user. | |
760 | * - decoding: Set by libavcodec. | |
fa384dcc MN |
761 | */ |
762 | int16_t position[3][2]; | |
763 | }AVPanScan; | |
764 | ||
bb270c08 DB |
765 | #define FF_QSCALE_TYPE_MPEG1 0 |
766 | #define FF_QSCALE_TYPE_MPEG2 1 | |
767 | #define FF_QSCALE_TYPE_H264 2 | |
800274f8 | 768 | #define FF_QSCALE_TYPE_VP56 3 |
4e00e76b MN |
769 | |
770 | #define FF_BUFFER_TYPE_INTERNAL 1 | |
f5bccd85 DB |
771 | #define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user) |
772 | #define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared. | |
773 | #define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything. | |
4e00e76b | 774 | |
f5bccd85 DB |
775 | #define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore). |
776 | #define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer. | |
777 | #define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content. | |
778 | #define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update). | |
074c4ca7 | 779 | |
30f3f625 AK |
780 | /** |
781 | * @defgroup lavc_packet AVPacket | |
782 | * | |
783 | * Types and functions for working with AVPacket. | |
784 | * @{ | |
785 | */ | |
4de339e2 KS |
786 | enum AVPacketSideDataType { |
787 | AV_PKT_DATA_PALETTE, | |
195c123c | 788 | AV_PKT_DATA_NEW_EXTRADATA, |
30f3f625 AK |
789 | |
790 | /** | |
791 | * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows: | |
199ada49 | 792 | * @code |
30f3f625 AK |
793 | * u32le param_flags |
794 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) | |
795 | * s32le channel_count | |
796 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) | |
797 | * u64le channel_layout | |
798 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) | |
799 | * s32le sample_rate | |
800 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) | |
801 | * s32le width | |
802 | * s32le height | |
199ada49 | 803 | * @endcode |
30f3f625 | 804 | */ |
fe75dc85 | 805 | AV_PKT_DATA_PARAM_CHANGE, |
30f3f625 AK |
806 | |
807 | /** | |
808 | * An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of | |
809 | * structures with info about macroblocks relevant to splitting the | |
810 | * packet into smaller packets on macroblock edges (e.g. as for RFC 2190). | |
811 | * That is, it does not necessarily contain info about all macroblocks, | |
812 | * as long as the distance between macroblocks in the info is smaller | |
813 | * than the target payload size. | |
814 | * Each MB info structure is 12 bytes, and is laid out as follows: | |
199ada49 | 815 | * @code |
30f3f625 AK |
816 | * u32le bit offset from the start of the packet |
817 | * u8 current quantizer at the start of the macroblock | |
818 | * u8 GOB number | |
819 | * u16le macroblock address within the GOB | |
820 | * u8 horizontal MV predictor | |
821 | * u8 vertical MV predictor | |
822 | * u8 horizontal MV predictor for block number 3 | |
823 | * u8 vertical MV predictor for block number 3 | |
199ada49 | 824 | * @endcode |
30f3f625 | 825 | */ |
bdc1220e | 826 | AV_PKT_DATA_H263_MB_INFO, |
4de339e2 KS |
827 | }; |
828 | ||
18c915ee TB |
829 | typedef struct AVPacket { |
830 | /** | |
7b356d39 RS |
831 | * Presentation timestamp in AVStream->time_base units; the time at which |
832 | * the decompressed packet will be presented to the user. | |
18c915ee TB |
833 | * Can be AV_NOPTS_VALUE if it is not stored in the file. |
834 | * pts MUST be larger or equal to dts as presentation cannot happen before | |
835 | * decompression, unless one wants to view hex dumps. Some formats misuse | |
836 | * the terms dts and pts/cts to mean something different. Such timestamps | |
837 | * must be converted to true pts/dts before they are stored in AVPacket. | |
838 | */ | |
839 | int64_t pts; | |
840 | /** | |
7b356d39 RS |
841 | * Decompression timestamp in AVStream->time_base units; the time at which |
842 | * the packet is decompressed. | |
18c915ee TB |
843 | * Can be AV_NOPTS_VALUE if it is not stored in the file. |
844 | */ | |
845 | int64_t dts; | |
846 | uint8_t *data; | |
847 | int size; | |
848 | int stream_index; | |
9d39cbf6 LB |
849 | /** |
850 | * A combination of AV_PKT_FLAG values | |
851 | */ | |
18c915ee TB |
852 | int flags; |
853 | /** | |
4de339e2 KS |
854 | * Additional packet data that can be provided by the container. |
855 | * Packet can contain several types of side information. | |
856 | */ | |
857 | struct { | |
858 | uint8_t *data; | |
859 | int size; | |
860 | enum AVPacketSideDataType type; | |
861 | } *side_data; | |
862 | int side_data_elems; | |
863 | ||
864 | /** | |
7b356d39 | 865 | * Duration of this packet in AVStream->time_base units, 0 if unknown. |
18c915ee TB |
866 | * Equals next_pts - this_pts in presentation order. |
867 | */ | |
868 | int duration; | |
869 | void (*destruct)(struct AVPacket *); | |
870 | void *priv; | |
871 | int64_t pos; ///< byte position in stream, -1 if unknown | |
872 | ||
873 | /** | |
7b356d39 | 874 | * Time difference in AVStream->time_base units from the pts of this |
18c915ee TB |
875 | * packet to the point at which the output from the decoder has converged |
876 | * independent from the availability of previous frames. That is, the | |
877 | * frames are virtually identical no matter if decoding started from | |
878 | * the very first frame or from this keyframe. | |
879 | * Is AV_NOPTS_VALUE if unknown. | |
880 | * This field is not the display duration of the current packet. | |
8ee82f40 AJ |
881 | * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY |
882 | * set. | |
18c915ee TB |
883 | * |
884 | * The purpose of this field is to allow seeking in streams that have no | |
885 | * keyframes in the conventional sense. It corresponds to the | |
886 | * recovery point SEI in H.264 and match_time_delta in NUT. It is also | |
887 | * essential for some types of subtitle streams to ensure that all | |
888 | * subtitles are correctly displayed after seeking. | |
889 | */ | |
890 | int64_t convergence_duration; | |
891 | } AVPacket; | |
9d39cbf6 LB |
892 | #define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe |
893 | #define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted | |
18c915ee | 894 | |
fe75dc85 MS |
895 | enum AVSideDataParamChangeFlags { |
896 | AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001, | |
897 | AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002, | |
898 | AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004, | |
899 | AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008, | |
900 | }; | |
30f3f625 AK |
901 | /** |
902 | * @} | |
903 | */ | |
fe75dc85 MS |
904 | |
905 | /** | |
0da71265 | 906 | * Audio Video Frame. |
657ccb5a DB |
907 | * New fields can be added to the end of AVFRAME with minor version |
908 | * bumps. Removal, reordering and changes to existing fields require | |
909 | * a major version bump. | |
8bfb108b | 910 | * sizeof(AVFrame) must not be used outside libav*. |
0da71265 | 911 | */ |
492cd3a9 | 912 | typedef struct AVFrame { |
560f773c | 913 | #define AV_NUM_DATA_POINTERS 8 |
657ccb5a | 914 | /** |
0eea2129 | 915 | * pointer to the picture/channel planes. |
657ccb5a | 916 | * This might be different from the first allocated byte |
0eea2129 JR |
917 | * - encoding: Set by user |
918 | * - decoding: set by AVCodecContext.get_buffer() | |
657ccb5a | 919 | */ |
560f773c | 920 | uint8_t *data[AV_NUM_DATA_POINTERS]; |
0eea2129 JR |
921 | |
922 | /** | |
923 | * Size, in bytes, of the data for each picture/channel plane. | |
924 | * | |
925 | * For audio, only linesize[0] may be set. For planar audio, each channel | |
926 | * plane must be the same size. | |
927 | * | |
9814974d | 928 | * - encoding: Set by user |
0eea2129 JR |
929 | * - decoding: set by AVCodecContext.get_buffer() |
930 | */ | |
560f773c | 931 | int linesize[AV_NUM_DATA_POINTERS]; |
0eea2129 | 932 | |
657ccb5a | 933 | /** |
1d428004 AK |
934 | * pointers to the data planes/channels. |
935 | * | |
936 | * For video, this should simply point to data[]. | |
937 | * | |
938 | * For planar audio, each channel has a separate data pointer, and | |
939 | * linesize[0] contains the size of each channel buffer. | |
940 | * For packed audio, there is just one data pointer, and linesize[0] | |
941 | * contains the total size of the buffer for all channels. | |
942 | * | |
943 | * Note: Both data and extended_data will always be set by get_buffer(), | |
944 | * but for planar audio with more channels that can fit in data, | |
945 | * extended_data must be used by the decoder in order to access all | |
946 | * channels. | |
947 | * | |
948 | * encoding: unused | |
949 | * decoding: set by AVCodecContext.get_buffer() | |
657ccb5a | 950 | */ |
1d428004 AK |
951 | uint8_t **extended_data; |
952 | ||
953 | /** | |
954 | * width and height of the video frame | |
955 | * - encoding: unused | |
956 | * - decoding: Read by user. | |
957 | */ | |
958 | int width, height; | |
959 | ||
960 | /** | |
961 | * number of audio samples (per channel) described by this frame | |
962 | * - encoding: Set by user | |
963 | * - decoding: Set by libavcodec | |
964 | */ | |
965 | int nb_samples; | |
966 | ||
967 | /** | |
968 | * format of the frame, -1 if unknown or unset | |
969 | * Values correspond to enum PixelFormat for video frames, | |
970 | * enum AVSampleFormat for audio) | |
971 | * - encoding: unused | |
972 | * - decoding: Read by user. | |
973 | */ | |
974 | int format; | |
975 | ||
657ccb5a DB |
976 | /** |
977 | * 1 -> keyframe, 0-> not | |
978 | * - encoding: Set by libavcodec. | |
979 | * - decoding: Set by libavcodec. | |
980 | */ | |
981 | int key_frame; | |
982 | ||
983 | /** | |
984 | * Picture type of the frame, see ?_TYPE below. | |
985 | * - encoding: Set by libavcodec. for coded_picture (and set by user for input). | |
986 | * - decoding: Set by libavcodec. | |
987 | */ | |
988 | enum AVPictureType pict_type; | |
989 | ||
990 | /** | |
1d428004 AK |
991 | * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer. |
992 | * This isn't used by libavcodec unless the default get/release_buffer() is used. | |
993 | * - encoding: | |
994 | * - decoding: | |
995 | */ | |
996 | uint8_t *base[AV_NUM_DATA_POINTERS]; | |
997 | ||
998 | /** | |
40ca0e6a | 999 | * sample aspect ratio for the video frame, 0/1 if unknown/unspecified |
1d428004 AK |
1000 | * - encoding: unused |
1001 | * - decoding: Read by user. | |
1002 | */ | |
1003 | AVRational sample_aspect_ratio; | |
1004 | ||
1005 | /** | |
657ccb5a DB |
1006 | * presentation timestamp in time_base units (time when frame should be shown to user) |
1007 | * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed. | |
1008 | * - encoding: MUST be set by user. | |
1009 | * - decoding: Set by libavcodec. | |
1010 | */ | |
1011 | int64_t pts; | |
1012 | ||
1013 | /** | |
1d428004 AK |
1014 | * reordered pts from the last AVPacket that has been input into the decoder |
1015 | * - encoding: unused | |
1016 | * - decoding: Read by user. | |
1017 | */ | |
1018 | int64_t pkt_pts; | |
1019 | ||
1020 | /** | |
1021 | * dts from the last AVPacket that has been input into the decoder | |
1022 | * - encoding: unused | |
1023 | * - decoding: Read by user. | |
1024 | */ | |
1025 | int64_t pkt_dts; | |
1026 | ||
1027 | /** | |
657ccb5a DB |
1028 | * picture number in bitstream order |
1029 | * - encoding: set by | |
1030 | * - decoding: Set by libavcodec. | |
1031 | */ | |
1032 | int coded_picture_number; | |
1033 | /** | |
1034 | * picture number in display order | |
1035 | * - encoding: set by | |
1036 | * - decoding: Set by libavcodec. | |
1037 | */ | |
1038 | int display_picture_number; | |
1039 | ||
1040 | /** | |
1041 | * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) | |
1042 | * - encoding: Set by libavcodec. for coded_picture (and set by user for input). | |
1043 | * - decoding: Set by libavcodec. | |
1044 | */ | |
1045 | int quality; | |
1046 | ||
657ccb5a DB |
1047 | /** |
1048 | * is this picture used as reference | |
1049 | * The values for this are the same as the MpegEncContext.picture_structure | |
1050 | * variable, that is 1->top field, 2->bottom field, 3->frame/both fields. | |
1051 | * Set to 4 for delayed, non-reference frames. | |
1052 | * - encoding: unused | |
1053 | * - decoding: Set by libavcodec. (before get_buffer() call)). | |
1054 | */ | |
1055 | int reference; | |
1056 | ||
1057 | /** | |
1058 | * QP table | |
1059 | * - encoding: unused | |
1060 | * - decoding: Set by libavcodec. | |
1061 | */ | |
1062 | int8_t *qscale_table; | |
1063 | /** | |
1064 | * QP store stride | |
1065 | * - encoding: unused | |
1066 | * - decoding: Set by libavcodec. | |
1067 | */ | |
1068 | int qstride; | |
1069 | ||
1070 | /** | |
1d428004 AK |
1071 | * |
1072 | */ | |
1073 | int qscale_type; | |
1074 | ||
1075 | /** | |
657ccb5a DB |
1076 | * mbskip_table[mb]>=1 if MB didn't change |
1077 | * stride= mb_width = (width+15)>>4 | |
1078 | * - encoding: unused | |
1079 | * - decoding: Set by libavcodec. | |
1080 | */ | |
1081 | uint8_t *mbskip_table; | |
1082 | ||
1083 | /** | |
1084 | * motion vector table | |
1085 | * @code | |
1086 | * example: | |
1087 | * int mv_sample_log2= 4 - motion_subsample_log2; | |
1088 | * int mb_width= (width+15)>>4; | |
1089 | * int mv_stride= (mb_width << mv_sample_log2) + 1; | |
1090 | * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y]; | |
1091 | * @endcode | |
1092 | * - encoding: Set by user. | |
1093 | * - decoding: Set by libavcodec. | |
1094 | */ | |
1095 | int16_t (*motion_val[2])[2]; | |
1096 | ||
1097 | /** | |
1098 | * macroblock type table | |
1099 | * mb_type_base + mb_width + 2 | |
1100 | * - encoding: Set by user. | |
1101 | * - decoding: Set by libavcodec. | |
1102 | */ | |
1103 | uint32_t *mb_type; | |
1104 | ||
1105 | /** | |
1d428004 | 1106 | * DCT coefficients |
657ccb5a DB |
1107 | * - encoding: unused |
1108 | * - decoding: Set by libavcodec. | |
1109 | */ | |
1d428004 AK |
1110 | short *dct_coeff; |
1111 | ||
1112 | /** | |
1113 | * motion reference frame index | |
1114 | * the order in which these are stored can depend on the codec. | |
1115 | * - encoding: Set by user. | |
1116 | * - decoding: Set by libavcodec. | |
1117 | */ | |
1118 | int8_t *ref_index[2]; | |
657ccb5a DB |
1119 | |
1120 | /** | |
1121 | * for some private data of the user | |
1122 | * - encoding: unused | |
1123 | * - decoding: Set by user. | |
1124 | */ | |
1125 | void *opaque; | |
1126 | ||
1127 | /** | |
1128 | * error | |
1129 | * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR. | |
1130 | * - decoding: unused | |
1131 | */ | |
560f773c | 1132 | uint64_t error[AV_NUM_DATA_POINTERS]; |
657ccb5a DB |
1133 | |
1134 | /** | |
1135 | * type of the buffer (to keep track of who has to deallocate data[*]) | |
1136 | * - encoding: Set by the one who allocates it. | |
1137 | * - decoding: Set by the one who allocates it. | |
1138 | * Note: User allocated (direct rendering) & internal buffers cannot coexist currently. | |
1139 | */ | |
1140 | int type; | |
1141 | ||
1142 | /** | |
1143 | * When decoding, this signals how much the picture must be delayed. | |
1144 | * extra_delay = repeat_pict / (2*fps) | |
1145 | * - encoding: unused | |
1146 | * - decoding: Set by libavcodec. | |
1147 | */ | |
1148 | int repeat_pict; | |
1149 | ||
1150 | /** | |
657ccb5a DB |
1151 | * The content of the picture is interlaced. |
1152 | * - encoding: Set by user. | |
1153 | * - decoding: Set by libavcodec. (default 0) | |
1154 | */ | |
1155 | int interlaced_frame; | |
1156 | ||
1157 | /** | |
1158 | * If the content is interlaced, is top field displayed first. | |
1159 | * - encoding: Set by user. | |
1160 | * - decoding: Set by libavcodec. | |
1161 | */ | |
1162 | int top_field_first; | |
1163 | ||
1164 | /** | |
657ccb5a DB |
1165 | * Tell user application that palette has changed from previous frame. |
1166 | * - encoding: ??? (no palette-enabled encoder yet) | |
1167 | * - decoding: Set by libavcodec. (default 0). | |
1168 | */ | |
1169 | int palette_has_changed; | |
1170 | ||
1171 | /** | |
1172 | * codec suggestion on buffer type if != 0 | |
1173 | * - encoding: unused | |
1174 | * - decoding: Set by libavcodec. (before get_buffer() call)). | |
1175 | */ | |
1176 | int buffer_hints; | |
1177 | ||
1178 | /** | |
1d428004 | 1179 | * Pan scan. |
657ccb5a DB |
1180 | * - encoding: Set by user. |
1181 | * - decoding: Set by libavcodec. | |
1182 | */ | |
1d428004 | 1183 | AVPanScan *pan_scan; |
657ccb5a DB |
1184 | |
1185 | /** | |
1186 | * reordered opaque 64bit (generally an integer or a double precision float | |
1187 | * PTS but can be anything). | |
1188 | * The user sets AVCodecContext.reordered_opaque to represent the input at | |
1189 | * that time, | |
1190 | * the decoder reorders values as needed and sets AVFrame.reordered_opaque | |
1191 | * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque | |
1192 | * @deprecated in favor of pkt_pts | |
1193 | * - encoding: unused | |
1194 | * - decoding: Read by user. | |
1195 | */ | |
1196 | int64_t reordered_opaque; | |
1197 | ||
1198 | /** | |
1199 | * hardware accelerator private data (Libav-allocated) | |
1200 | * - encoding: unused | |
1201 | * - decoding: Set by libavcodec | |
1202 | */ | |
1203 | void *hwaccel_picture_private; | |
1204 | ||
1205 | /** | |
657ccb5a DB |
1206 | * the AVCodecContext which ff_thread_get_buffer() was last called on |
1207 | * - encoding: Set by libavcodec. | |
1208 | * - decoding: Set by libavcodec. | |
1209 | */ | |
1210 | struct AVCodecContext *owner; | |
1211 | ||
1212 | /** | |
1213 | * used by multithreading to store frame-specific info | |
1214 | * - encoding: Set by libavcodec. | |
1215 | * - decoding: Set by libavcodec. | |
1216 | */ | |
1217 | void *thread_opaque; | |
0eea2129 JR |
1218 | |
1219 | /** | |
1d428004 AK |
1220 | * log2 of the size of the block which a single vector in motion_val represents: |
1221 | * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2) | |
8a4a5f6f | 1222 | * - encoding: unused |
1d428004 | 1223 | * - decoding: Set by libavcodec. |
8a4a5f6f | 1224 | */ |
1d428004 | 1225 | uint8_t motion_subsample_log2; |
828bd088 AK |
1226 | |
1227 | /** | |
1228 | * Sample rate of the audio data. | |
1229 | * | |
1230 | * - encoding: unused | |
1231 | * - decoding: set by get_buffer() | |
1232 | */ | |
1233 | int sample_rate; | |
1234 | ||
1235 | /** | |
1236 | * Channel layout of the audio data. | |
1237 | * | |
1238 | * - encoding: unused | |
1239 | * - decoding: set by get_buffer() | |
1240 | */ | |
1241 | uint64_t channel_layout; | |
492cd3a9 | 1242 | } AVFrame; |
1e491e29 | 1243 | |
f3a29b75 JR |
1244 | struct AVCodecInternal; |
1245 | ||
4bf3c8f2 AC |
1246 | enum AVFieldOrder { |
1247 | AV_FIELD_UNKNOWN, | |
1248 | AV_FIELD_PROGRESSIVE, | |
1249 | AV_FIELD_TT, //< Top coded_first, top displayed first | |
1250 | AV_FIELD_BB, //< Bottom coded first, bottom displayed first | |
1251 | AV_FIELD_TB, //< Top coded first, bottom displayed first | |
1252 | AV_FIELD_BT, //< Bottom coded first, top displayed first | |
1253 | }; | |
1254 | ||
d33c949c | 1255 | /** |
252f17e2 MN |
1256 | * main external API structure. |
1257 | * New fields can be added to the end with minor version bumps. | |
8bfb108b | 1258 | * Removal, reordering and changes to existing fields require a major |
252f17e2 | 1259 | * version bump. |
8bfb108b | 1260 | * sizeof(AVCodecContext) must not be used outside libav*. |
d33c949c | 1261 | */ |
de6d9b64 | 1262 | typedef struct AVCodecContext { |
b71901e6 | 1263 | /** |
f5bccd85 | 1264 | * information on struct for av_log |
488eec10 | 1265 | * - set by avcodec_alloc_context3 |
bc874dae | 1266 | */ |
d42a814e | 1267 | const AVClass *av_class; |
b1edfce0 AK |
1268 | int log_level_offset; |
1269 | ||
1270 | enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */ | |
1271 | struct AVCodec *codec; | |
1272 | char codec_name[32]; | |
36ef5369 | 1273 | enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */ |
b1edfce0 AK |
1274 | |
1275 | /** | |
1276 | * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). | |
1277 | * This is used to work around some encoder bugs. | |
1278 | * A demuxer should set this to what is stored in the field used to identify the codec. | |
1279 | * If there are multiple such fields in a container then the demuxer should choose the one | |
1280 | * which maximizes the information about the used codec. | |
1281 | * If the codec tag field in a container is larger than 32 bits then the demuxer should | |
1282 | * remap the longer ID to 32 bits with a table or other structure. Alternatively a new | |
1283 | * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated | |
1284 | * first. | |
1285 | * - encoding: Set by user, if not then the default based on codec_id will be used. | |
1286 | * - decoding: Set by user, will be converted to uppercase by libavcodec during init. | |
1287 | */ | |
1288 | unsigned int codec_tag; | |
1289 | ||
1290 | /** | |
1291 | * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). | |
1292 | * This is used to work around some encoder bugs. | |
1293 | * - encoding: unused | |
1294 | * - decoding: Set by user, will be converted to uppercase by libavcodec during init. | |
1295 | */ | |
1296 | unsigned int stream_codec_tag; | |
1297 | ||
02beb982 | 1298 | #if FF_API_SUB_ID |
b1edfce0 | 1299 | /** |
02beb982 | 1300 | * @deprecated this field is unused |
b1edfce0 | 1301 | */ |
02beb982 AK |
1302 | attribute_deprecated int sub_id; |
1303 | #endif | |
b1edfce0 AK |
1304 | |
1305 | void *priv_data; | |
1306 | ||
1307 | /** | |
1308 | * Private context used for internal data. | |
1309 | * | |
1310 | * Unlike priv_data, this is not codec-specific. It is used in general | |
1311 | * libavcodec functions. | |
1312 | */ | |
1313 | struct AVCodecInternal *internal; | |
1314 | ||
1315 | /** | |
1316 | * Private data of the user, can be used to carry app specific stuff. | |
1317 | * - encoding: Set by user. | |
1318 | * - decoding: Set by user. | |
1319 | */ | |
1320 | void *opaque; | |
1321 | ||
bc874dae | 1322 | /** |
f5bccd85 DB |
1323 | * the average bitrate |
1324 | * - encoding: Set by user; unused for constant quantizer encoding. | |
1325 | * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream. | |
b71901e6 | 1326 | */ |
de6d9b64 | 1327 | int bit_rate; |
b71901e6 MN |
1328 | |
1329 | /** | |
64863965 | 1330 | * number of bits the bitstream is allowed to diverge from the reference. |
b71901e6 | 1331 | * the reference can be CBR (for CBR pass1) or VBR (for pass2) |
f5bccd85 | 1332 | * - encoding: Set by user; unused for constant quantizer encoding. |
64863965 | 1333 | * - decoding: unused |
b71901e6 | 1334 | */ |
115329f1 | 1335 | int bit_rate_tolerance; |
b71901e6 MN |
1336 | |
1337 | /** | |
b1edfce0 AK |
1338 | * Global quality for codecs which cannot change it per frame. |
1339 | * This should be proportional to MPEG-1/2/4 qscale. | |
f5bccd85 | 1340 | * - encoding: Set by user. |
b1edfce0 | 1341 | * - decoding: unused |
b71901e6 | 1342 | */ |
b1edfce0 | 1343 | int global_quality; |
b71901e6 MN |
1344 | |
1345 | /** | |
b1edfce0 AK |
1346 | * - encoding: Set by user. |
1347 | * - decoding: unused | |
b71901e6 | 1348 | */ |
b1edfce0 AK |
1349 | int compression_level; |
1350 | #define FF_COMPRESSION_DEFAULT -1 | |
b71901e6 MN |
1351 | |
1352 | /** | |
b1edfce0 AK |
1353 | * CODEC_FLAG_*. |
1354 | * - encoding: Set by user. | |
1355 | * - decoding: Set by user. | |
b71901e6 | 1356 | */ |
b1edfce0 AK |
1357 | int flags; |
1358 | ||
1359 | /** | |
1360 | * CODEC_FLAG2_* | |
1361 | * - encoding: Set by user. | |
1362 | * - decoding: Set by user. | |
1363 | */ | |
1364 | int flags2; | |
b71901e6 MN |
1365 | |
1366 | /** | |
f5bccd85 DB |
1367 | * some codecs need / can use extradata like Huffman tables. |
1368 | * mjpeg: Huffman tables | |
b71901e6 | 1369 | * rv10: additional flags |
b704e742 | 1370 | * mpeg4: global headers (they can be in the bitstream or here) |
f5bccd85 DB |
1371 | * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger |
1372 | * than extradata_size to avoid prolems if it is read with the bitstream reader. | |
1373 | * The bytewise contents of extradata must not depend on the architecture or CPU endianness. | |
1374 | * - encoding: Set/allocated/freed by libavcodec. | |
1375 | * - decoding: Set/allocated/freed by user. | |
b71901e6 | 1376 | */ |
58f2a4b0 | 1377 | uint8_t *extradata; |
e84c31dc | 1378 | int extradata_size; |
115329f1 | 1379 | |
b71901e6 | 1380 | /** |
f5bccd85 DB |
1381 | * This is the fundamental unit of time (in seconds) in terms |
1382 | * of which frame timestamps are represented. For fixed-fps content, | |
5b28c8c3 MN |
1383 | * timebase should be 1/framerate and timestamp increments should be |
1384 | * identically 1. | |
f5bccd85 DB |
1385 | * - encoding: MUST be set by user. |
1386 | * - decoding: Set by libavcodec. | |
b71901e6 | 1387 | */ |
c0df9d75 | 1388 | AVRational time_base; |
115329f1 | 1389 | |
b1edfce0 AK |
1390 | /** |
1391 | * For some codecs, the time base is closer to the field rate than the frame rate. | |
1392 | * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration | |
1393 | * if no telecine is used ... | |
1394 | * | |
1395 | * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2. | |
1396 | */ | |
1397 | int ticks_per_frame; | |
1398 | ||
1399 | /** | |
1400 | * Encoder delay. | |
1401 | * | |
1402 | * Video: | |
1403 | * Number of frames the decoded output will be delayed relative to the | |
1404 | * encoded input. | |
1405 | * | |
1406 | * Audio: | |
1407 | * Number of "priming" samples added to the beginning of the stream | |
1408 | * during encoding. The decoded output will be delayed by this many | |
1409 | * samples relative to the input to the encoder. Note that this field is | |
1410 | * purely informational and does not directly affect the pts output by | |
1411 | * the encoder, which should always be based on the actual presentation | |
1412 | * time, including any delay. | |
1413 | * | |
1414 | * - encoding: Set by libavcodec. | |
1415 | * - decoding: unused | |
1416 | */ | |
1417 | int delay; | |
1418 | ||
1419 | ||
5b28c8c3 | 1420 | /* video only */ |
14bea432 | 1421 | /** |
21adafec | 1422 | * picture width / height. |
115329f1 | 1423 | * - encoding: MUST be set by user. |
f5bccd85 DB |
1424 | * - decoding: Set by libavcodec. |
1425 | * Note: For compatibility it is possible to set this instead of | |
1426 | * coded_width/height before decoding. | |
b71901e6 | 1427 | */ |
de6d9b64 | 1428 | int width, height; |
115329f1 | 1429 | |
b1edfce0 | 1430 | /** |
2bcbd984 | 1431 | * Bitstream width / height, may be different from width/height. |
b1edfce0 AK |
1432 | * - encoding: unused |
1433 | * - decoding: Set by user before init if known. Codec should override / dynamically change if needed. | |
1434 | */ | |
1435 | int coded_width, coded_height; | |
1436 | ||
e769f053 | 1437 | #define FF_ASPECT_EXTENDED 15 |
b71901e6 MN |
1438 | |
1439 | /** | |
f5bccd85 DB |
1440 | * the number of pictures in a group of pictures, or 0 for intra_only |
1441 | * - encoding: Set by user. | |
64863965 | 1442 | * - decoding: unused |
b71901e6 MN |
1443 | */ |
1444 | int gop_size; | |
1445 | ||
1446 | /** | |
f5bccd85 | 1447 | * Pixel format, see PIX_FMT_xxx. |
c1bdc930 TH |
1448 | * May be set by the demuxer if known from headers. |
1449 | * May be overriden by the decoder if it knows better. | |
f5bccd85 | 1450 | * - encoding: Set by user. |
c1bdc930 | 1451 | * - decoding: Set by user if known, overridden by libavcodec if known |
b71901e6 | 1452 | */ |
e4eadb4b | 1453 | enum PixelFormat pix_fmt; |
115329f1 | 1454 | |
b71901e6 | 1455 | /** |
b1edfce0 AK |
1456 | * Motion estimation algorithm used for video coding. |
1457 | * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex), | |
1458 | * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific] | |
1459 | * - encoding: MUST be set by user. | |
1460 | * - decoding: unused | |
1461 | */ | |
1462 | int me_method; | |
1463 | ||
1464 | /** | |
f5bccd85 DB |
1465 | * If non NULL, 'draw_horiz_band' is called by the libavcodec |
1466 | * decoder to draw a horizontal band. It improves cache usage. Not | |
b71901e6 | 1467 | * all codecs can do that. You must check the codec capabilities |
f5bccd85 | 1468 | * beforehand. |
37b00b47 AS |
1469 | * When multithreading is used, it may be called from multiple threads |
1470 | * at the same time; threads might draw different parts of the same AVFrame, | |
1471 | * or multiple AVFrames, and there is no guarantee that slices will be drawn | |
1472 | * in order. | |
24b1583a IK |
1473 | * The function is also used by hardware acceleration APIs. |
1474 | * It is called at least once during frame decoding to pass | |
1475 | * the data needed for hardware render. | |
1476 | * In that mode instead of pixel data, AVFrame points to | |
1477 | * a structure specific to the acceleration API. The application | |
1478 | * reads the structure and can change some fields to indicate progress | |
1479 | * or mark state. | |
64863965 | 1480 | * - encoding: unused |
f5bccd85 | 1481 | * - decoding: Set by user. |
3bb07d61 MN |
1482 | * @param height the height of the slice |
1483 | * @param y the y position of the slice | |
1484 | * @param type 1->top field, 2->bottom field, 3->frame | |
1485 | * @param offset offset into the AVFrame.data from which the slice should be read | |
b71901e6 | 1486 | */ |
bf89e6b1 | 1487 | void (*draw_horiz_band)(struct AVCodecContext *s, |
560f773c | 1488 | const AVFrame *src, int offset[AV_NUM_DATA_POINTERS], |
3bb07d61 | 1489 | int y, int type, int height); |
bf89e6b1 | 1490 | |
a3a5f4d6 | 1491 | /** |
b1edfce0 AK |
1492 | * callback to negotiate the pixelFormat |
1493 | * @param fmt is the list of formats which are supported by the codec, | |
1494 | * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. | |
1495 | * The first is always the native one. | |
1496 | * @return the chosen format | |
1497 | * - encoding: unused | |
1498 | * - decoding: Set by user, if not set the native format will be chosen. | |
a3a5f4d6 | 1499 | */ |
b1edfce0 | 1500 | enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt); |
de6d9b64 | 1501 | |
718b27a7 | 1502 | /** |
b1edfce0 AK |
1503 | * maximum number of B-frames between non-B-frames |
1504 | * Note: The output will be delayed by max_b_frames+1 relative to the input. | |
1505 | * - encoding: Set by user. | |
1506 | * - decoding: unused | |
718b27a7 | 1507 | */ |
b1edfce0 | 1508 | int max_b_frames; |
115329f1 | 1509 | |
b71901e6 | 1510 | /** |
b1edfce0 AK |
1511 | * qscale factor between IP and B-frames |
1512 | * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset). | |
1513 | * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). | |
1514 | * - encoding: Set by user. | |
64863965 | 1515 | * - decoding: unused |
b71901e6 | 1516 | */ |
b1edfce0 | 1517 | float b_quant_factor; |
115329f1 | 1518 | |
b1edfce0 AK |
1519 | /** obsolete FIXME remove */ |
1520 | int rc_strategy; | |
1521 | #define FF_RC_STRATEGY_XVID 1 | |
1522 | ||
1523 | int b_frame_strategy; | |
115329f1 | 1524 | |
63efd83a | 1525 | #if FF_API_MPV_GLOBAL_OPTS |
b71901e6 | 1526 | /** |
b1edfce0 | 1527 | * luma single coefficient elimination threshold |
f5bccd85 | 1528 | * - encoding: Set by user. |
64863965 | 1529 | * - decoding: unused |
b71901e6 | 1530 | */ |
63efd83a | 1531 | attribute_deprecated int luma_elim_threshold; |
b71901e6 MN |
1532 | |
1533 | /** | |
b1edfce0 | 1534 | * chroma single coeff elimination threshold |
f5bccd85 | 1535 | * - encoding: Set by user. |
64863965 | 1536 | * - decoding: unused |
b71901e6 | 1537 | */ |
63efd83a AK |
1538 | attribute_deprecated int chroma_elim_threshold; |
1539 | #endif | |
b71901e6 MN |
1540 | |
1541 | /** | |
b1edfce0 | 1542 | * qscale offset between IP and B-frames |
f5bccd85 | 1543 | * - encoding: Set by user. |
64863965 | 1544 | * - decoding: unused |
b71901e6 | 1545 | */ |
b1edfce0 | 1546 | float b_quant_offset; |
b71901e6 MN |
1547 | |
1548 | /** | |
b1edfce0 AK |
1549 | * Size of the frame reordering buffer in the decoder. |
1550 | * For MPEG-2 it is 1 IPB or 0 low delay IP. | |
1551 | * - encoding: Set by libavcodec. | |
1552 | * - decoding: Set by libavcodec. | |
1553 | */ | |
1554 | int has_b_frames; | |
1555 | ||
1556 | /** | |
1557 | * 0-> h263 quant 1-> mpeg quant | |
f5bccd85 | 1558 | * - encoding: Set by user. |
64863965 | 1559 | * - decoding: unused |
b71901e6 | 1560 | */ |
b1edfce0 | 1561 | int mpeg_quant; |
b71901e6 MN |
1562 | |
1563 | /** | |
b1edfce0 AK |
1564 | * qscale factor between P and I-frames |
1565 | * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset). | |
662e5411 | 1566 | * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). |
f5bccd85 | 1567 | * - encoding: Set by user. |
64863965 | 1568 | * - decoding: unused |
b71901e6 | 1569 | */ |
b1edfce0 | 1570 | float i_quant_factor; |
64b7c5b6 | 1571 | |
b1edfce0 AK |
1572 | /** |
1573 | * qscale offset between P and I-frames | |
1574 | * - encoding: Set by user. | |
1575 | * - decoding: unused | |
1576 | */ | |
1577 | float i_quant_offset; | |
9dbcbd92 | 1578 | |
b1edfce0 AK |
1579 | /** |
1580 | * luminance masking (0-> disabled) | |
1581 | * - encoding: Set by user. | |
1582 | * - decoding: unused | |
1583 | */ | |
1584 | float lumi_masking; | |
115329f1 | 1585 | |
b1edfce0 AK |
1586 | /** |
1587 | * temporary complexity masking (0-> disabled) | |
1588 | * - encoding: Set by user. | |
1589 | * - decoding: unused | |
1590 | */ | |
1591 | float temporal_cplx_masking; | |
de6d9b64 | 1592 | |
b1edfce0 AK |
1593 | /** |
1594 | * spatial complexity masking (0-> disabled) | |
1595 | * - encoding: Set by user. | |
1596 | * - decoding: unused | |
1597 | */ | |
1598 | float spatial_cplx_masking; | |
115329f1 | 1599 | |
b71901e6 | 1600 | /** |
b1edfce0 | 1601 | * p block masking (0-> disabled) |
f5bccd85 | 1602 | * - encoding: Set by user. |
64863965 | 1603 | * - decoding: unused |
b71901e6 | 1604 | */ |
b1edfce0 | 1605 | float p_masking; |
115329f1 | 1606 | |
b71901e6 | 1607 | /** |
b1edfce0 | 1608 | * darkness masking (0-> disabled) |
f5bccd85 | 1609 | * - encoding: Set by user. |
64863965 | 1610 | * - decoding: unused |
b71901e6 | 1611 | */ |
b1edfce0 | 1612 | float dark_masking; |
115329f1 | 1613 | |
b71901e6 | 1614 | /** |
b1edfce0 AK |
1615 | * slice count |
1616 | * - encoding: Set by libavcodec. | |
1617 | * - decoding: Set by user (or 0). | |
b71901e6 | 1618 | */ |
b1edfce0 | 1619 | int slice_count; |
b71901e6 | 1620 | /** |
b1edfce0 | 1621 | * prediction method (needed for huffyuv) |
f5bccd85 | 1622 | * - encoding: Set by user. |
64863965 | 1623 | * - decoding: unused |
b71901e6 | 1624 | */ |
b1edfce0 AK |
1625 | int prediction_method; |
1626 | #define FF_PRED_LEFT 0 | |
1627 | #define FF_PRED_PLANE 1 | |
1628 | #define FF_PRED_MEDIAN 2 | |
115329f1 | 1629 | |
b71901e6 | 1630 | /** |
b1edfce0 AK |
1631 | * slice offsets in the frame in bytes |
1632 | * - encoding: Set/allocated by libavcodec. | |
1633 | * - decoding: Set/allocated by user (or NULL). | |
b71901e6 | 1634 | */ |
b1edfce0 | 1635 | int *slice_offset; |
0fd90455 | 1636 | |
b71901e6 | 1637 | /** |
b1edfce0 AK |
1638 | * sample aspect ratio (0 if unknown) |
1639 | * That is the width of a pixel divided by the height of the pixel. | |
1640 | * Numerator and denominator must be relatively prime and smaller than 256 for some video standards. | |
1641 | * - encoding: Set by user. | |
f5bccd85 | 1642 | * - decoding: Set by libavcodec. |
b71901e6 | 1643 | */ |
b1edfce0 | 1644 | AVRational sample_aspect_ratio; |
115329f1 | 1645 | |
b71901e6 | 1646 | /** |
b1edfce0 | 1647 | * motion estimation comparison function |
f5bccd85 | 1648 | * - encoding: Set by user. |
64863965 | 1649 | * - decoding: unused |
b71901e6 | 1650 | */ |
b1edfce0 | 1651 | int me_cmp; |
b71901e6 | 1652 | /** |
b1edfce0 | 1653 | * subpixel motion estimation comparison function |
f5bccd85 | 1654 | * - encoding: Set by user. |
64863965 | 1655 | * - decoding: unused |
b71901e6 | 1656 | */ |
b1edfce0 | 1657 | int me_sub_cmp; |
b71901e6 | 1658 | /** |
b1edfce0 | 1659 | * macroblock comparison function (not supported yet) |
f5bccd85 | 1660 | * - encoding: Set by user. |
64863965 | 1661 | * - decoding: unused |
b71901e6 | 1662 | */ |
b1edfce0 | 1663 | int mb_cmp; |
b71901e6 | 1664 | /** |
b1edfce0 | 1665 | * interlaced DCT comparison function |
f5bccd85 | 1666 | * - encoding: Set by user. |
64863965 | 1667 | * - decoding: unused |
b71901e6 | 1668 | */ |
b1edfce0 AK |
1669 | int ildct_cmp; |
1670 | #define FF_CMP_SAD 0 | |
1671 | #define FF_CMP_SSE 1 | |
1672 | #define FF_CMP_SATD 2 | |
1673 | #define FF_CMP_DCT 3 | |
1674 | #define FF_CMP_PSNR 4 | |
1675 | #define FF_CMP_BIT 5 | |
1676 | #define FF_CMP_RD 6 | |
1677 | #define FF_CMP_ZERO 7 | |
1678 | #define FF_CMP_VSAD 8 | |
1679 | #define FF_CMP_VSSE 9 | |
1680 | #define FF_CMP_NSSE 10 | |
1681 | #define FF_CMP_W53 11 | |
1682 | #define FF_CMP_W97 12 | |
1683 | #define FF_CMP_DCTMAX 13 | |
1684 | #define FF_CMP_DCT264 14 | |
1685 | #define FF_CMP_CHROMA 256 | |
115329f1 | 1686 | |
b71901e6 | 1687 | /** |
b1edfce0 | 1688 | * ME diamond size & shape |
f5bccd85 | 1689 | * - encoding: Set by user. |
64863965 | 1690 | * - decoding: unused |
b71901e6 | 1691 | */ |
b1edfce0 | 1692 | int dia_size; |
b71901e6 MN |
1693 | |
1694 | /** | |
b1edfce0 | 1695 | * amount of previous MV predictors (2a+1 x 2a+1 square) |
f5bccd85 | 1696 | * - encoding: Set by user. |
64863965 | 1697 | * - decoding: unused |
b71901e6 | 1698 | */ |
b1edfce0 | 1699 | int last_predictor_count; |
115329f1 | 1700 | |
b71901e6 | 1701 | /** |
b1edfce0 | 1702 | * prepass for motion estimation |
f5bccd85 | 1703 | * - encoding: Set by user. |
64863965 | 1704 | * - decoding: unused |
b71901e6 | 1705 | */ |
b1edfce0 | 1706 | int pre_me; |
115329f1 | 1707 | |
b71901e6 | 1708 | /** |
b1edfce0 | 1709 | * motion estimation prepass comparison function |
f5bccd85 | 1710 | * - encoding: Set by user. |
64863965 | 1711 | * - decoding: unused |
b71901e6 | 1712 | */ |
b1edfce0 | 1713 | int me_pre_cmp; |
917e06c8 | 1714 | |
b71901e6 | 1715 | /** |
b1edfce0 | 1716 | * ME prepass diamond size & shape |
f5bccd85 | 1717 | * - encoding: Set by user. |
64863965 | 1718 | * - decoding: unused |
b71901e6 | 1719 | */ |
b1edfce0 | 1720 | int pre_dia_size; |
115329f1 | 1721 | |
c5d309f2 | 1722 | /** |
b1edfce0 | 1723 | * subpel ME quality |
f5bccd85 | 1724 | * - encoding: Set by user. |
64863965 | 1725 | * - decoding: unused |
c5d309f2 | 1726 | */ |
b1edfce0 | 1727 | int me_subpel_quality; |
115329f1 | 1728 | |
c5d309f2 | 1729 | /** |
b1edfce0 AK |
1730 | * DTG active format information (additional aspect ratio |
1731 | * information only used in DVB MPEG-2 transport streams) | |
1732 | * 0 if not set. | |
1733 | * | |
1734 | * - encoding: unused | |
1735 | * - decoding: Set by decoder. | |
c5d309f2 | 1736 | */ |
b1edfce0 AK |
1737 | int dtg_active_format; |
1738 | #define FF_DTG_AFD_SAME 8 | |
1739 | #define FF_DTG_AFD_4_3 9 | |
1740 | #define FF_DTG_AFD_16_9 10 | |
1741 | #define FF_DTG_AFD_14_9 11 | |
1742 | #define FF_DTG_AFD_4_3_SP_14_9 13 | |
1743 | #define FF_DTG_AFD_16_9_SP_14_9 14 | |
1744 | #define FF_DTG_AFD_SP_4_3 15 | |
115329f1 | 1745 | |
c5d309f2 | 1746 | /** |
b1edfce0 AK |
1747 | * maximum motion estimation search range in subpel units |
1748 | * If 0 then no limit. | |
1749 | * | |
f5bccd85 | 1750 | * - encoding: Set by user. |
64863965 | 1751 | * - decoding: unused |
c5d309f2 | 1752 | */ |
b1edfce0 | 1753 | int me_range; |
115329f1 | 1754 | |
c5d309f2 | 1755 | /** |
b1edfce0 | 1756 | * intra quantizer bias |
f5bccd85 | 1757 | * - encoding: Set by user. |
64863965 | 1758 | * - decoding: unused |
c5d309f2 | 1759 | */ |
b1edfce0 AK |
1760 | int intra_quant_bias; |
1761 | #define FF_DEFAULT_QUANT_BIAS 999999 | |
15415af4 | 1762 | |
5e746b99 | 1763 | /** |
b1edfce0 | 1764 | * inter quantizer bias |
f5bccd85 | 1765 | * - encoding: Set by user. |
64863965 | 1766 | * - decoding: unused |
5e746b99 | 1767 | */ |
b1edfce0 | 1768 | int inter_quant_bias; |
115329f1 | 1769 | |
4f07f819 | 1770 | #if FF_API_COLOR_TABLE_ID |
0c2dd16e | 1771 | /** |
b1edfce0 AK |
1772 | * color table ID |
1773 | * - encoding: unused | |
1774 | * - decoding: Which clrtable should be used for 8bit RGB images. | |
1775 | * Tables have to be stored somewhere. FIXME | |
2ad1516a | 1776 | */ |
4f07f819 AK |
1777 | attribute_deprecated int color_table_id; |
1778 | #endif | |
2ad1516a | 1779 | |
144f0625 | 1780 | /** |
b1edfce0 AK |
1781 | * slice flags |
1782 | * - encoding: unused | |
1783 | * - decoding: Set by user. | |
144f0625 | 1784 | */ |
b1edfce0 AK |
1785 | int slice_flags; |
1786 | #define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display | |
1787 | #define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics) | |
1788 | #define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1) | |
1789 | ||
144f0625 | 1790 | /** |
b1edfce0 AK |
1791 | * XVideo Motion Acceleration |
1792 | * - encoding: forbidden | |
1793 | * - decoding: set by decoder | |
144f0625 | 1794 | */ |
b1edfce0 | 1795 | int xvmc_acceleration; |
144f0625 | 1796 | |
4d2858de | 1797 | /** |
b1edfce0 AK |
1798 | * macroblock decision mode |
1799 | * - encoding: Set by user. | |
1800 | * - decoding: unused | |
4d2858de | 1801 | */ |
b1edfce0 AK |
1802 | int mb_decision; |
1803 | #define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp | |
1804 | #define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits | |
1805 | #define FF_MB_DECISION_RD 2 ///< rate distortion | |
4d2858de | 1806 | |
6b72ac63 | 1807 | /** |
b1edfce0 AK |
1808 | * custom intra quantization matrix |
1809 | * - encoding: Set by user, can be NULL. | |
1810 | * - decoding: Set by libavcodec. | |
bec89a84 | 1811 | */ |
b1edfce0 | 1812 | uint16_t *intra_matrix; |
7160bb71 | 1813 | |
11f18faf | 1814 | /** |
b1edfce0 AK |
1815 | * custom inter quantization matrix |
1816 | * - encoding: Set by user, can be NULL. | |
1817 | * - decoding: Set by libavcodec. | |
11f18faf | 1818 | */ |
b1edfce0 | 1819 | uint16_t *inter_matrix; |
115329f1 | 1820 | |
11f18faf | 1821 | /** |
b1edfce0 AK |
1822 | * scene change detection threshold |
1823 | * 0 is default, larger means fewer detected scene changes. | |
f5bccd85 | 1824 | * - encoding: Set by user. |
64863965 | 1825 | * - decoding: unused |
11f18faf | 1826 | */ |
b1edfce0 | 1827 | int scenechange_threshold; |
115329f1 | 1828 | |
5d3cea3a | 1829 | /** |
b1edfce0 | 1830 | * noise reduction strength |
f5bccd85 | 1831 | * - encoding: Set by user. |
b1edfce0 | 1832 | * - decoding: unused |
5d3cea3a | 1833 | */ |
b1edfce0 | 1834 | int noise_reduction; |
1e491e29 | 1835 | |
16b7557b | 1836 | #if FF_API_INTER_THRESHOLD |
1e491e29 | 1837 | /** |
16b7557b | 1838 | * @deprecated this field is unused |
1e491e29 | 1839 | */ |
16b7557b AK |
1840 | attribute_deprecated int inter_threshold; |
1841 | #endif | |
c8c437bc | 1842 | |
23bfcc06 | 1843 | #if FF_API_MPV_GLOBAL_OPTS |
c8c437bc | 1844 | /** |
23bfcc06 | 1845 | * @deprecated use mpegvideo private options instead |
c8c437bc | 1846 | */ |
23bfcc06 AK |
1847 | attribute_deprecated int quantizer_noise_shaping; |
1848 | #endif | |
115329f1 | 1849 | |
140cb663 | 1850 | /** |
b1edfce0 AK |
1851 | * Motion estimation threshold below which no motion estimation is |
1852 | * performed, but instead the user specified motion vectors are used. | |
1853 | * | |
f5bccd85 | 1854 | * - encoding: Set by user. |
b1edfce0 | 1855 | * - decoding: unused |
0c9bbaec | 1856 | */ |
b1edfce0 | 1857 | int me_threshold; |
0c9bbaec WH |
1858 | |
1859 | /** | |
b1edfce0 AK |
1860 | * Macroblock threshold below which the user specified macroblock types will be used. |
1861 | * - encoding: Set by user. | |
64863965 | 1862 | * - decoding: unused |
140cb663 | 1863 | */ |
b1edfce0 | 1864 | int mb_threshold; |
115329f1 | 1865 | |
1457ab52 | 1866 | /** |
b1edfce0 | 1867 | * precision of the intra DC coefficient - 8 |
f5bccd85 | 1868 | * - encoding: Set by user. |
64863965 | 1869 | * - decoding: unused |
1457ab52 | 1870 | */ |
b1edfce0 AK |
1871 | int intra_dc_precision; |
1872 | ||
1457ab52 | 1873 | /** |
b1edfce0 AK |
1874 | * Number of macroblock rows at the top which are skipped. |
1875 | * - encoding: unused | |
1876 | * - decoding: Set by user. | |
1457ab52 | 1877 | */ |
b1edfce0 AK |
1878 | int skip_top; |
1879 | ||
1457ab52 | 1880 | /** |
b1edfce0 AK |
1881 | * Number of macroblock rows at the bottom which are skipped. |
1882 | * - encoding: unused | |
1883 | * - decoding: Set by user. | |
1457ab52 | 1884 | */ |
b1edfce0 AK |
1885 | int skip_bottom; |
1886 | ||
622348f9 | 1887 | /** |
b1edfce0 AK |
1888 | * Border processing masking, raises the quantizer for mbs on the borders |
1889 | * of the picture. | |
f5bccd85 | 1890 | * - encoding: Set by user. |
622348f9 MN |
1891 | * - decoding: unused |
1892 | */ | |
b1edfce0 | 1893 | float border_masking; |
115329f1 | 1894 | |
1457ab52 | 1895 | /** |
b1edfce0 | 1896 | * minimum MB lagrange multipler |
f5bccd85 | 1897 | * - encoding: Set by user. |
64863965 | 1898 | * - decoding: unused |
1457ab52 | 1899 | */ |
b1edfce0 | 1900 | int mb_lmin; |
b07a5980 MN |
1901 | |
1902 | /** | |
b1edfce0 | 1903 | * maximum MB lagrange multipler |
f5bccd85 | 1904 | * - encoding: Set by user. |
64863965 | 1905 | * - decoding: unused |
b07a5980 | 1906 | */ |
b1edfce0 | 1907 | int mb_lmax; |
70ac76c0 | 1908 | |
f5fb6b34 | 1909 | /** |
b1edfce0 | 1910 | * |
f5bccd85 | 1911 | * - encoding: Set by user. |
64863965 | 1912 | * - decoding: unused |
f5fb6b34 | 1913 | */ |
b1edfce0 | 1914 | int me_penalty_compensation; |
b07a5980 | 1915 | |
70ac76c0 | 1916 | /** |
b1edfce0 | 1917 | * |
f5bccd85 | 1918 | * - encoding: Set by user. |
64863965 | 1919 | * - decoding: unused |
70ac76c0 | 1920 | */ |
b1edfce0 | 1921 | int bidir_refine; |
826f429a | 1922 | |
70ac76c0 | 1923 | /** |
b1edfce0 | 1924 | * |
f5bccd85 | 1925 | * - encoding: Set by user. |
64863965 | 1926 | * - decoding: unused |
70ac76c0 | 1927 | */ |
b1edfce0 | 1928 | int brd_scale; |
70ac76c0 | 1929 | |
826f429a | 1930 | /** |
b1edfce0 | 1931 | * minimum GOP size |
f5bccd85 | 1932 | * - encoding: Set by user. |
64863965 | 1933 | * - decoding: unused |
826f429a | 1934 | */ |
b1edfce0 | 1935 | int keyint_min; |
826f429a | 1936 | |
a33c7159 | 1937 | /** |
b1edfce0 AK |
1938 | * number of reference frames |
1939 | * - encoding: Set by user. | |
1940 | * - decoding: Set by lavc. | |
a33c7159 | 1941 | */ |
b1edfce0 | 1942 | int refs; |
e2f9490e FB |
1943 | |
1944 | /** | |
b1edfce0 AK |
1945 | * chroma qp offset from luma |
1946 | * - encoding: Set by user. | |
1947 | * - decoding: unused | |
e2f9490e | 1948 | */ |
b1edfce0 | 1949 | int chromaoffset; |
e2f9490e | 1950 | |
ebbcdc9a | 1951 | /** |
b1edfce0 | 1952 | * Multiplied by qscale for each frame and added to scene_change_score. |
f5bccd85 DB |
1953 | * - encoding: Set by user. |
1954 | * - decoding: unused | |
ebbcdc9a | 1955 | */ |
b1edfce0 | 1956 | int scenechange_factor; |
ebbcdc9a | 1957 | |
65f7062d | 1958 | /** |
b1edfce0 AK |
1959 | * |
1960 | * Note: Value depends upon the compare function used for fullpel ME. | |
f5bccd85 | 1961 | * - encoding: Set by user. |
1984f635 MN |
1962 | * - decoding: unused |
1963 | */ | |
b1edfce0 | 1964 | int mv0_threshold; |
115329f1 | 1965 | |
1984f635 | 1966 | /** |
b1edfce0 | 1967 | * Adjust sensitivity of b_frame_strategy 1. |
f5bccd85 | 1968 | * - encoding: Set by user. |
1984f635 MN |
1969 | * - decoding: unused |
1970 | */ | |
b1edfce0 | 1971 | int b_sensitivity; |
5cd62665 ZK |
1972 | |
1973 | /** | |
b1edfce0 AK |
1974 | * Chromaticity coordinates of the source primaries. |
1975 | * - encoding: Set by user | |
1976 | * - decoding: Set by libavcodec | |
5cd62665 | 1977 | */ |
b1edfce0 | 1978 | enum AVColorPrimaries color_primaries; |
115329f1 | 1979 | |
3d2e8cce | 1980 | /** |
b1edfce0 AK |
1981 | * Color Transfer Characteristic. |
1982 | * - encoding: Set by user | |
1983 | * - decoding: Set by libavcodec | |
3d2e8cce | 1984 | */ |
b1edfce0 | 1985 | enum AVColorTransferCharacteristic color_trc; |
115329f1 | 1986 | |
11e659c2 | 1987 | /** |
b1edfce0 AK |
1988 | * YUV colorspace type. |
1989 | * - encoding: Set by user | |
1990 | * - decoding: Set by libavcodec | |
1991 | */ | |
1992 | enum AVColorSpace colorspace; | |
1993 | ||
1994 | /** | |
1995 | * MPEG vs JPEG YUV range. | |
1996 | * - encoding: Set by user | |
1997 | * - decoding: Set by libavcodec | |
1998 | */ | |
1999 | enum AVColorRange color_range; | |
2000 | ||
2001 | /** | |
2002 | * This defines the location of chroma samples. | |
2003 | * - encoding: Set by user | |
2004 | * - decoding: Set by libavcodec | |
2005 | */ | |
2006 | enum AVChromaLocation chroma_sample_location; | |
2007 | ||
2008 | /** | |
2009 | * Number of slices. | |
2010 | * Indicates number of picture subdivisions. Used for parallelized | |
2011 | * decoding. | |
2012 | * - encoding: Set by user | |
11e659c2 MN |
2013 | * - decoding: unused |
2014 | */ | |
b1edfce0 AK |
2015 | int slices; |
2016 | ||
2017 | /** Field order | |
2018 | * - encoding: set by libavcodec | |
2019 | * - decoding: Set by libavcodec | |
2020 | */ | |
2021 | enum AVFieldOrder field_order; | |
2022 | ||
2023 | /* audio only */ | |
2024 | int sample_rate; ///< samples per second | |
2025 | int channels; ///< number of audio channels | |
11e659c2 MN |
2026 | |
2027 | /** | |
b1edfce0 | 2028 | * audio sample format |
f5bccd85 | 2029 | * - encoding: Set by user. |
b1edfce0 | 2030 | * - decoding: Set by libavcodec. |
11e659c2 | 2031 | */ |
b1edfce0 | 2032 | enum AVSampleFormat sample_fmt; ///< sample format |
115329f1 | 2033 | |
b1edfce0 | 2034 | /* The following data should not be initialized. */ |
3bb07d61 | 2035 | /** |
b1edfce0 | 2036 | * Samples per packet, initialized when calling 'init'. |
3bb07d61 | 2037 | */ |
b1edfce0 | 2038 | int frame_size; |
c179c9e1 AK |
2039 | |
2040 | /** | |
2041 | * Frame counter, set by libavcodec. | |
2042 | * | |
2043 | * - decoding: total number of frames returned from the decoder so far. | |
2044 | * - encoding: total number of frames passed to the encoder so far. | |
2045 | * | |
2046 | * @note the counter is not incremented if encoding/decoding resulted in | |
2047 | * an error. | |
2048 | */ | |
2049 | int frame_number; | |
3bb07d61 | 2050 | |
fb364ada | 2051 | /** |
b1edfce0 AK |
2052 | * number of bytes per packet if constant and known or 0 |
2053 | * Used by some WAV based audio codecs. | |
fb364ada | 2054 | */ |
b1edfce0 | 2055 | int block_align; |
115329f1 | 2056 | |
7d1c3fc1 | 2057 | /** |
b1edfce0 | 2058 | * Audio cutoff bandwidth (0 means "automatic") |
f5bccd85 | 2059 | * - encoding: Set by user. |
7d1c3fc1 MN |
2060 | * - decoding: unused |
2061 | */ | |
b1edfce0 | 2062 | int cutoff; |
d6eb3c50 | 2063 | |
b1edfce0 | 2064 | #if FF_API_REQUEST_CHANNELS |
d6eb3c50 | 2065 | /** |
b1edfce0 AK |
2066 | * Decoder should decode to this many channels if it can (0 for default) |
2067 | * - encoding: unused | |
2068 | * - decoding: Set by user. | |
2069 | * @deprecated Deprecated in favor of request_channel_layout. | |
d6eb3c50 | 2070 | */ |
b1edfce0 AK |
2071 | int request_channels; |
2072 | #endif | |
d6eb3c50 MN |
2073 | |
2074 | /** | |
b1edfce0 AK |
2075 | * Audio channel layout. |
2076 | * - encoding: set by user. | |
2077 | * - decoding: set by libavcodec. | |
d6eb3c50 | 2078 | */ |
b1edfce0 | 2079 | uint64_t channel_layout; |
115329f1 | 2080 | |
541ae140 | 2081 | /** |
b1edfce0 | 2082 | * Request decoder to use this channel layout if it can (0 for default) |
541ae140 | 2083 | * - encoding: unused |
b1edfce0 | 2084 | * - decoding: Set by user. |
541ae140 | 2085 | */ |
b1edfce0 | 2086 | uint64_t request_channel_layout; |
05fbd0a2 MN |
2087 | |
2088 | /** | |
b1edfce0 | 2089 | * Type of service that the audio stream conveys. |
f5bccd85 | 2090 | * - encoding: Set by user. |
b1edfce0 | 2091 | * - decoding: Set by libavcodec. |
05fbd0a2 | 2092 | */ |
b1edfce0 | 2093 | enum AVAudioServiceType audio_service_type; |
158c7f05 MN |
2094 | |
2095 | /** | |
b1edfce0 AK |
2096 | * Used to request a sample format from the decoder. |
2097 | * - encoding: unused. | |
2098 | * - decoding: Set by user. | |
158c7f05 | 2099 | */ |
b1edfce0 | 2100 | enum AVSampleFormat request_sample_fmt; |
158c7f05 MN |
2101 | |
2102 | /** | |
b1edfce0 AK |
2103 | * Called at the beginning of each frame to get a buffer for it. |
2104 | * | |
2105 | * The function will set AVFrame.data[], AVFrame.linesize[]. | |
2106 | * AVFrame.extended_data[] must also be set, but it should be the same as | |
2107 | * AVFrame.data[] except for planar audio with more channels than can fit | |
2108 | * in AVFrame.data[]. In that case, AVFrame.data[] shall still contain as | |
2109 | * many data pointers as it can hold. | |
2110 | * | |
2111 | * if CODEC_CAP_DR1 is not set then get_buffer() must call | |
2112 | * avcodec_default_get_buffer() instead of providing buffers allocated by | |
2113 | * some other means. | |
2114 | * | |
2115 | * AVFrame.data[] should be 32- or 16-byte-aligned unless the CPU doesn't | |
2116 | * need it. avcodec_default_get_buffer() aligns the output buffer properly, | |
2117 | * but if get_buffer() is overridden then alignment considerations should | |
2118 | * be taken into account. | |
2119 | * | |
2120 | * @see avcodec_default_get_buffer() | |
2121 | * | |
2122 | * Video: | |
2123 | * | |
2124 | * If pic.reference is set then the frame will be read later by libavcodec. | |
2125 | * avcodec_align_dimensions2() should be used to find the required width and | |
2126 | * height, as they normally need to be rounded up to the next multiple of 16. | |
2127 | * | |
2128 | * If frame multithreading is used and thread_safe_callbacks is set, | |
2129 | * it may be called from a different thread, but not from more than one at | |
2130 | * once. Does not need to be reentrant. | |
2131 | * | |
2132 | * @see release_buffer(), reget_buffer() | |
2133 | * @see avcodec_align_dimensions2() | |
2134 | * | |
2135 | * Audio: | |
2136 | * | |
2137 | * Decoders request a buffer of a particular size by setting | |
2138 | * AVFrame.nb_samples prior to calling get_buffer(). The decoder may, | |
2139 | * however, utilize only part of the buffer by setting AVFrame.nb_samples | |
2140 | * to a smaller value in the output frame. | |
2141 | * | |
2142 | * Decoders cannot use the buffer after returning from | |
2143 | * avcodec_decode_audio4(), so they will not call release_buffer(), as it | |
2144 | * is assumed to be released immediately upon return. | |
2145 | * | |
2146 | * As a convenience, av_samples_get_buffer_size() and | |
2147 | * av_samples_fill_arrays() in libavutil may be used by custom get_buffer() | |
2148 | * functions to find the required data size and to fill data pointers and | |
2149 | * linesize. In AVFrame.linesize, only linesize[0] may be set for audio | |
2150 | * since all planes must be the same size. | |
2151 | * | |
2152 | * @see av_samples_get_buffer_size(), av_samples_fill_arrays() | |
2153 | * | |
2154 | * - encoding: unused | |
2155 | * - decoding: Set by libavcodec, user can override. | |
158c7f05 | 2156 | */ |
b1edfce0 | 2157 | int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic); |
2a2bbcb0 | 2158 | |
821cb11f | 2159 | /** |
b1edfce0 AK |
2160 | * Called to release buffers which were allocated with get_buffer. |
2161 | * A released buffer can be reused in get_buffer(). | |
2162 | * pic.data[*] must be set to NULL. | |
2163 | * May be called from a different thread if frame multithreading is used, | |
2164 | * but not by more than one thread at once, so does not need to be reentrant. | |
2165 | * - encoding: unused | |
2166 | * - decoding: Set by libavcodec, user can override. | |
821cb11f | 2167 | */ |
b1edfce0 | 2168 | void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic); |
115329f1 | 2169 | |
074c4ca7 | 2170 | /** |
f5bccd85 DB |
2171 | * Called at the beginning of a frame to get cr buffer for it. |
2172 | * Buffer type (size, hints) must be the same. libavcodec won't check it. | |
2173 | * libavcodec will pass previous buffer in pic, function should return | |
e1c2a5a0 | 2174 | * same buffer or new buffer with old frame "painted" into it. |
f5bccd85 | 2175 | * If pic.data[0] == NULL must behave like get_buffer(). |
f1b99cc6 MN |
2176 | * if CODEC_CAP_DR1 is not set then reget_buffer() must call |
2177 | * avcodec_default_reget_buffer() instead of providing buffers allocated by | |
2178 | * some other means. | |
074c4ca7 | 2179 | * - encoding: unused |
53128bc3 | 2180 | * - decoding: Set by libavcodec, user can override. |
074c4ca7 | 2181 | */ |
e1c2a5a0 | 2182 | int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic); |
ba58dabc | 2183 | |
ba58dabc | 2184 | |
b1edfce0 AK |
2185 | /* - encoding parameters */ |
2186 | float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0) | |
2187 | float qblur; ///< amount of qscale smoothing over time (0.0-1.0) | |
ba58dabc MN |
2188 | |
2189 | /** | |
b1edfce0 | 2190 | * minimum quantizer |
f5bccd85 | 2191 | * - encoding: Set by user. |
b1edfce0 | 2192 | * - decoding: unused |
ba58dabc | 2193 | */ |
b1edfce0 | 2194 | int qmin; |
7ebfc0ea MN |
2195 | |
2196 | /** | |
b1edfce0 | 2197 | * maximum quantizer |
f5bccd85 DB |
2198 | * - encoding: Set by user. |
2199 | * - decoding: unused | |
7ebfc0ea | 2200 | */ |
b1edfce0 | 2201 | int qmax; |
115329f1 | 2202 | |
77ea0d4b | 2203 | /** |
b1edfce0 | 2204 | * maximum quantizer difference between frames |
f5bccd85 | 2205 | * - encoding: Set by user. |
77ea0d4b MN |
2206 | * - decoding: unused |
2207 | */ | |
b1edfce0 | 2208 | int max_qdiff; |
9c3d33d6 MN |
2209 | |
2210 | /** | |
b1edfce0 AK |
2211 | * ratecontrol qmin qmax limiting method |
2212 | * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax. | |
f5bccd85 | 2213 | * - encoding: Set by user. |
b1edfce0 | 2214 | * - decoding: unused |
9c3d33d6 | 2215 | */ |
b1edfce0 | 2216 | float rc_qsquish; |
115329f1 | 2217 | |
b1edfce0 AK |
2218 | float rc_qmod_amp; |
2219 | int rc_qmod_freq; | |
a4d36c11 MN |
2220 | |
2221 | /** | |
b1edfce0 | 2222 | * decoder bitstream buffer size |
f5bccd85 | 2223 | * - encoding: Set by user. |
f20f8a8b | 2224 | * - decoding: unused |
a4d36c11 | 2225 | */ |
b1edfce0 | 2226 | int rc_buffer_size; |
f20f8a8b MN |
2227 | |
2228 | /** | |
b1edfce0 AK |
2229 | * ratecontrol override, see RcOverride |
2230 | * - encoding: Allocated/set/freed by user. | |
f20f8a8b MN |
2231 | * - decoding: unused |
2232 | */ | |
b1edfce0 AK |
2233 | int rc_override_count; |
2234 | RcOverride *rc_override; | |
bf266e19 MN |
2235 | |
2236 | /** | |
b1edfce0 AK |
2237 | * rate control equation |
2238 | * - encoding: Set by user | |
bf266e19 MN |
2239 | * - decoding: unused |
2240 | */ | |
b1edfce0 | 2241 | const char *rc_eq; |
d4c5d2ad MN |
2242 | |
2243 | /** | |
b1edfce0 | 2244 | * maximum bitrate |
f5bccd85 | 2245 | * - encoding: Set by user. |
d4c5d2ad MN |
2246 | * - decoding: unused |
2247 | */ | |
b1edfce0 | 2248 | int rc_max_rate; |
baced9f5 MN |
2249 | |
2250 | /** | |
b1edfce0 | 2251 | * minimum bitrate |
f5bccd85 | 2252 | * - encoding: Set by user. |
b1edfce0 | 2253 | * - decoding: unused |
baced9f5 | 2254 | */ |
b1edfce0 | 2255 | int rc_min_rate; |
0215006a | 2256 | |
b1edfce0 | 2257 | float rc_buffer_aggressivity; |
c4ab43ff | 2258 | |
baced9f5 | 2259 | /** |
b1edfce0 | 2260 | * initial complexity for pass1 ratecontrol |
f5bccd85 | 2261 | * - encoding: Set by user. |
b1edfce0 | 2262 | * - decoding: unused |
178fcca8 | 2263 | */ |
b1edfce0 | 2264 | float rc_initial_cplx; |
21adafec MN |
2265 | |
2266 | /** | |
b1edfce0 AK |
2267 | * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow. |
2268 | * - encoding: Set by user. | |
2269 | * - decoding: unused. | |
21adafec | 2270 | */ |
b1edfce0 | 2271 | float rc_max_available_vbv_use; |
bbf18b21 MN |
2272 | |
2273 | /** | |
b1edfce0 | 2274 | * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow. |
f5bccd85 | 2275 | * - encoding: Set by user. |
b1edfce0 | 2276 | * - decoding: unused. |
bbf18b21 | 2277 | */ |
b1edfce0 | 2278 | float rc_min_vbv_overflow_use; |
bbf18b21 MN |
2279 | |
2280 | /** | |
b1edfce0 | 2281 | * Number of bits which should be loaded into the rc buffer before decoding starts. |
f5bccd85 | 2282 | * - encoding: Set by user. |
bbf18b21 MN |
2283 | * - decoding: unused |
2284 | */ | |
b1edfce0 | 2285 | int rc_initial_buffer_occupancy; |
0fd6aea1 | 2286 | |
b1edfce0 AK |
2287 | #define FF_CODER_TYPE_VLC 0 |
2288 | #define FF_CODER_TYPE_AC 1 | |
2289 | #define FF_CODER_TYPE_RAW 2 | |
2290 | #define FF_CODER_TYPE_RLE 3 | |
2291 | #define FF_CODER_TYPE_DEFLATE 4 | |
0fd6aea1 | 2292 | /** |
b1edfce0 | 2293 | * coder type |
f5bccd85 | 2294 | * - encoding: Set by user. |
0fd6aea1 MN |
2295 | * - decoding: unused |
2296 | */ | |
b1edfce0 | 2297 | int coder_type; |
0fd6aea1 MN |
2298 | |
2299 | /** | |
b1edfce0 | 2300 | * context model |
f5bccd85 | 2301 | * - encoding: Set by user. |
0fd6aea1 MN |
2302 | * - decoding: unused |
2303 | */ | |
b1edfce0 | 2304 | int context_model; |
957c743a CM |
2305 | |
2306 | /** | |
b1edfce0 | 2307 | * minimum Lagrange multipler |
f5bccd85 | 2308 | * - encoding: Set by user. |
957c743a CM |
2309 | * - decoding: unused |
2310 | */ | |
b1edfce0 | 2311 | int lmin; |
6e0d8c06 MN |
2312 | |
2313 | /** | |
b1edfce0 | 2314 | * maximum Lagrange multipler |
f5bccd85 | 2315 | * - encoding: Set by user. |
6e0d8c06 MN |
2316 | * - decoding: unused |
2317 | */ | |
b1edfce0 | 2318 | int lmax; |
6e0d8c06 MN |
2319 | |
2320 | /** | |
b1edfce0 | 2321 | * frame skip threshold |
f5bccd85 | 2322 | * - encoding: Set by user. |
6e0d8c06 MN |
2323 | * - decoding: unused |
2324 | */ | |
b1edfce0 | 2325 | int frame_skip_threshold; |
09c3e44e MN |
2326 | |
2327 | /** | |
b1edfce0 | 2328 | * frame skip factor |
f5bccd85 | 2329 | * - encoding: Set by user. |
09c3e44e MN |
2330 | * - decoding: unused |
2331 | */ | |
b1edfce0 | 2332 | int frame_skip_factor; |
316a2ec8 MN |
2333 | |
2334 | /** | |
b1edfce0 | 2335 | * frame skip exponent |
f5bccd85 | 2336 | * - encoding: Set by user. |
316a2ec8 MN |
2337 | * - decoding: unused |
2338 | */ | |
b1edfce0 | 2339 | int frame_skip_exp; |
e8501c93 MN |
2340 | |
2341 | /** | |
b1edfce0 | 2342 | * frame skip comparison function |
f5bccd85 | 2343 | * - encoding: Set by user. |
e8501c93 MN |
2344 | * - decoding: unused |
2345 | */ | |
b1edfce0 | 2346 | int frame_skip_cmp; |
58f7833e | 2347 | |
58f7833e | 2348 | /** |
b1edfce0 | 2349 | * trellis RD quantization |
f5bccd85 | 2350 | * - encoding: Set by user. |
58f7833e RS |
2351 | * - decoding: unused |
2352 | */ | |
b1edfce0 | 2353 | int trellis; |
58f7833e RS |
2354 | |
2355 | /** | |
f5bccd85 | 2356 | * - encoding: Set by user. |
b1edfce0 | 2357 | * - decoding: unused |
58f7833e | 2358 | */ |
b1edfce0 | 2359 | int min_prediction_order; |
58f7833e RS |
2360 | |
2361 | /** | |
f5bccd85 | 2362 | * - encoding: Set by user. |
58f7833e RS |
2363 | * - decoding: unused |
2364 | */ | |
b1edfce0 | 2365 | int max_prediction_order; |
58f7833e | 2366 | |
58f7833e | 2367 | /** |
b1edfce0 | 2368 | * GOP timecode frame start number, in non drop frame format |
f5bccd85 | 2369 | * - encoding: Set by user. |
58f7833e RS |
2370 | * - decoding: unused |
2371 | */ | |
b1edfce0 AK |
2372 | int64_t timecode_frame_start; |
2373 | ||
2374 | /* The RTP callback: This function is called */ | |
2375 | /* every time the encoder has a packet to send. */ | |
2376 | /* It depends on the encoder if the data starts */ | |
2377 | /* with a Start Code (it should). H.263 does. */ | |
2378 | /* mb_nb contains the number of macroblocks */ | |
2379 | /* encoded in the RTP payload. */ | |
2380 | void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); | |
2381 | ||
2382 | int rtp_payload_size; /* The size of the RTP payload: the coder will */ | |
2383 | /* do its best to deliver a chunk with size */ | |
2384 | /* below rtp_payload_size, the chunk will start */ | |
2385 | /* with a start code on some codecs like H.263. */ | |
2386 | /* This doesn't take account of any particular */ | |
2387 | /* headers inside the transmitted RTP payload. */ | |
2388 | ||
2389 | /* statistics, used for 2-pass encoding */ | |
2390 | int mv_bits; | |
2391 | int header_bits; | |
2392 | int i_tex_bits; | |
2393 | int p_tex_bits; | |
2394 | int i_count; | |
2395 | int p_count; | |
2396 | int skip_count; | |
2397 | int misc_bits; | |
58f7833e | 2398 | |
14f0c8e2 | 2399 | /** |
b1edfce0 AK |
2400 | * number of bits used for the previously encoded frame |
2401 | * - encoding: Set by libavcodec. | |
14f0c8e2 LA |
2402 | * - decoding: unused |
2403 | */ | |
b1edfce0 | 2404 | int frame_bits; |
39a64e30 CH |
2405 | |
2406 | /** | |
b1edfce0 AK |
2407 | * pass1 encoding statistics output buffer |
2408 | * - encoding: Set by libavcodec. | |
39a64e30 CH |
2409 | * - decoding: unused |
2410 | */ | |
b1edfce0 | 2411 | char *stats_out; |
1dd509b1 MN |
2412 | |
2413 | /** | |
b1edfce0 AK |
2414 | * pass2 encoding statistics input buffer |
2415 | * Concatenated stuff from stats_out of pass1 should be placed here. | |
2416 | * - encoding: Allocated/set/freed by user. | |
1dd509b1 MN |
2417 | * - decoding: unused |
2418 | */ | |
b1edfce0 | 2419 | char *stats_in; |
f9243d34 CH |
2420 | |
2421 | /** | |
b1edfce0 AK |
2422 | * Work around bugs in encoders which sometimes cannot be detected automatically. |
2423 | * - encoding: Set by user | |
2424 | * - decoding: Set by user | |
f9243d34 | 2425 | */ |
b1edfce0 AK |
2426 | int workaround_bugs; |
2427 | #define FF_BUG_AUTODETECT 1 ///< autodetection | |
2428 | #define FF_BUG_OLD_MSMPEG4 2 | |
2429 | #define FF_BUG_XVID_ILACE 4 | |
2430 | #define FF_BUG_UMP4 8 | |
2431 | #define FF_BUG_NO_PADDING 16 | |
2432 | #define FF_BUG_AMV 32 | |
2433 | #define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default. | |
2434 | #define FF_BUG_QPEL_CHROMA 64 | |
2435 | #define FF_BUG_STD_QPEL 128 | |
2436 | #define FF_BUG_QPEL_CHROMA2 256 | |
2437 | #define FF_BUG_DIRECT_BLOCKSIZE 512 | |
2438 | #define FF_BUG_EDGE 1024 | |
2439 | #define FF_BUG_HPEL_CHROMA 2048 | |
2440 | #define FF_BUG_DC_CLIP 4096 | |
2441 | #define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders. | |
2442 | #define FF_BUG_TRUNCATED 16384 | |
a403fc03 JR |
2443 | |
2444 | /** | |
b1edfce0 | 2445 | * strictly follow the standard (MPEG4, ...). |
f5bccd85 | 2446 | * - encoding: Set by user. |
b1edfce0 AK |
2447 | * - decoding: Set by user. |
2448 | * Setting this to STRICT or higher means the encoder and decoder will | |
2449 | * generally do stupid things, whereas setting it to unofficial or lower | |
2450 | * will mean the encoder might produce output that is not supported by all | |
2451 | * spec-compliant decoders. Decoders don't differentiate between normal, | |
2452 | * unofficial and experimental (that is, they always try to decode things | |
2453 | * when they can) unless they are explicitly asked to behave stupidly | |
2454 | * (=strictly conform to the specs) | |
a403fc03 | 2455 | */ |
b1edfce0 AK |
2456 | int strict_std_compliance; |
2457 | #define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software. | |
2458 | #define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences. | |
2459 | #define FF_COMPLIANCE_NORMAL 0 | |
2460 | #define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions | |
2461 | #define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things. | |
a403fc03 | 2462 | |
a403fc03 | 2463 | /** |
b1edfce0 AK |
2464 | * error concealment flags |
2465 | * - encoding: unused | |
2466 | * - decoding: Set by user. | |
a403fc03 | 2467 | */ |
b1edfce0 AK |
2468 | int error_concealment; |
2469 | #define FF_EC_GUESS_MVS 1 | |
2470 | #define FF_EC_DEBLOCK 2 | |
a403fc03 JR |
2471 | |
2472 | /** | |
b1edfce0 | 2473 | * debug |
f5bccd85 | 2474 | * - encoding: Set by user. |
b1edfce0 | 2475 | * - decoding: Set by user. |
a403fc03 | 2476 | */ |
b1edfce0 AK |
2477 | int debug; |
2478 | #define FF_DEBUG_PICT_INFO 1 | |
2479 | #define FF_DEBUG_RC 2 | |
2480 | #define FF_DEBUG_BITSTREAM 4 | |
2481 | #define FF_DEBUG_MB_TYPE 8 | |
2482 | #define FF_DEBUG_QP 16 | |
2483 | #define FF_DEBUG_MV 32 | |
2484 | #define FF_DEBUG_DCT_COEFF 0x00000040 | |
2485 | #define FF_DEBUG_SKIP 0x00000080 | |
2486 | #define FF_DEBUG_STARTCODE 0x00000100 | |
2487 | #define FF_DEBUG_PTS 0x00000200 | |
2488 | #define FF_DEBUG_ER 0x00000400 | |
2489 | #define FF_DEBUG_MMCO 0x00000800 | |
2490 | #define FF_DEBUG_BUGS 0x00001000 | |
2491 | #define FF_DEBUG_VIS_QP 0x00002000 | |
2492 | #define FF_DEBUG_VIS_MB_TYPE 0x00004000 | |
2493 | #define FF_DEBUG_BUFFERS 0x00008000 | |
2494 | #define FF_DEBUG_THREADS 0x00010000 | |
188dea1d | 2495 | |
80d617f5 | 2496 | /** |
b1edfce0 | 2497 | * debug |
f5bccd85 | 2498 | * - encoding: Set by user. |
b1edfce0 | 2499 | * - decoding: Set by user. |
80d617f5 | 2500 | */ |
b1edfce0 AK |
2501 | int debug_mv; |
2502 | #define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames | |
2503 | #define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames | |
2504 | #define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames | |
b1ec601f RD |
2505 | |
2506 | /** | |
b1edfce0 | 2507 | * Error recognition; may misdetect some more or less valid parts as errors. |
85947156 VS |
2508 | * - encoding: unused |
2509 | * - decoding: Set by user. | |
b1ec601f | 2510 | */ |
b1edfce0 AK |
2511 | int err_recognition; |
2512 | #define AV_EF_CRCCHECK (1<<0) | |
2513 | #define AV_EF_BITSTREAM (1<<1) | |
2514 | #define AV_EF_BUFFER (1<<2) | |
2515 | #define AV_EF_EXPLODE (1<<3) | |
1408352a | 2516 | |
79de84f2 MN |
2517 | /** |
2518 | * opaque 64bit number (generally a PTS) that will be reordered and | |
2519 | * output in AVFrame.reordered_opaque | |
81c623fa | 2520 | * @deprecated in favor of pkt_pts |
79de84f2 MN |
2521 | * - encoding: unused |
2522 | * - decoding: Set by user. | |
2523 | */ | |
2524 | int64_t reordered_opaque; | |
312420f3 PR |
2525 | |
2526 | /** | |
b1edfce0 AK |
2527 | * Hardware accelerator in use |
2528 | * - encoding: unused. | |
2529 | * - decoding: Set by libavcodec | |
312420f3 | 2530 | */ |
b1edfce0 | 2531 | struct AVHWAccel *hwaccel; |
0d72e7d0 PR |
2532 | |
2533 | /** | |
b1edfce0 AK |
2534 | * Hardware accelerator context. |
2535 | * For some hardware accelerators, a global context needs to be | |
2536 | * provided by the user. In that case, this holds display-dependent | |
2537 | * data Libav cannot instantiate itself. Please refer to the | |
2538 | * Libav HW accelerator documentation to know how to fill this | |
2539 | * is. e.g. for VA API, this is a struct vaapi_context. | |
2540 | * - encoding: unused | |
2541 | * - decoding: Set by user | |
0d72e7d0 | 2542 | */ |
b1edfce0 | 2543 | void *hwaccel_context; |
0d72e7d0 PR |
2544 | |
2545 | /** | |
b1edfce0 AK |
2546 | * error |
2547 | * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR. | |
2548 | * - decoding: unused | |
0d72e7d0 | 2549 | */ |
b1edfce0 | 2550 | uint64_t error[AV_NUM_DATA_POINTERS]; |
3bff4d8b BC |
2551 | |
2552 | /** | |
b1edfce0 | 2553 | * DCT algorithm, see FF_DCT_* below |
3bff4d8b | 2554 | * - encoding: Set by user. |
b1edfce0 | 2555 | * - decoding: unused |
3bff4d8b | 2556 | */ |
b1edfce0 AK |
2557 | int dct_algo; |
2558 | #define FF_DCT_AUTO 0 | |
2559 | #define FF_DCT_FASTINT 1 | |
2560 | #define FF_DCT_INT 2 | |
2561 | #define FF_DCT_MMX 3 | |
2562 | #define FF_DCT_ALTIVEC 5 | |
2563 | #define FF_DCT_FAAN 6 | |
3bff4d8b BC |
2564 | |
2565 | /** | |
b1edfce0 | 2566 | * IDCT algorithm, see FF_IDCT_* below. |
3bff4d8b | 2567 | * - encoding: Set by user. |
b1edfce0 | 2568 | * - decoding: Set by user. |
3bff4d8b | 2569 | */ |
b1edfce0 AK |
2570 | int idct_algo; |
2571 | #define FF_IDCT_AUTO 0 | |
2572 | #define FF_IDCT_INT 1 | |
2573 | #define FF_IDCT_SIMPLE 2 | |
2574 | #define FF_IDCT_SIMPLEMMX 3 | |
2575 | #define FF_IDCT_LIBMPEG2MMX 4 | |
2576 | #define FF_IDCT_MMI 5 | |
2577 | #define FF_IDCT_ARM 7 | |
2578 | #define FF_IDCT_ALTIVEC 8 | |
2579 | #define FF_IDCT_SH4 9 | |
2580 | #define FF_IDCT_SIMPLEARM 10 | |
2581 | #define FF_IDCT_H264 11 | |
2582 | #define FF_IDCT_VP3 12 | |
2583 | #define FF_IDCT_IPP 13 | |
2584 | #define FF_IDCT_XVIDMMX 14 | |
2585 | #define FF_IDCT_CAVS 15 | |
2586 | #define FF_IDCT_SIMPLEARMV5TE 16 | |
2587 | #define FF_IDCT_SIMPLEARMV6 17 | |
2588 | #define FF_IDCT_SIMPLEVIS 18 | |
2589 | #define FF_IDCT_WMV2 19 | |
2590 | #define FF_IDCT_FAAN 20 | |
2591 | #define FF_IDCT_EA 21 | |
2592 | #define FF_IDCT_SIMPLENEON 22 | |
2593 | #define FF_IDCT_SIMPLEALPHA 23 | |
2594 | #define FF_IDCT_BINK 24 | |
40e5d31b | 2595 | |
95510be8 | 2596 | #if FF_API_DSP_MASK |
40e5d31b | 2597 | /** |
95510be8 MR |
2598 | * Unused. |
2599 | * @deprecated use av_set_cpu_flags_mask() instead. | |
40e5d31b | 2600 | */ |
95510be8 MR |
2601 | attribute_deprecated unsigned dsp_mask; |
2602 | #endif | |
b1edfce0 AK |
2603 | |
2604 | /** | |
2605 | * bits per sample/pixel from the demuxer (needed for huffyuv). | |
2606 | * - encoding: Set by libavcodec. | |
2607 | * - decoding: Set by user. | |
2608 | */ | |
2609 | int bits_per_coded_sample; | |
2610 | ||
2611 | /** | |
2612 | * Bits per sample/pixel of internal libavcodec pixel/sample format. | |
2613 | * - encoding: set by user. | |
2614 | * - decoding: set by libavcodec. | |
2615 | */ | |
2616 | int bits_per_raw_sample; | |
3797c74b MN |
2617 | |
2618 | /** | |
b1edfce0 AK |
2619 | * low resolution decoding, 1-> 1/2 size, 2->1/4 size |
2620 | * - encoding: unused | |
2621 | * - decoding: Set by user. | |
3797c74b | 2622 | */ |
2bcbd984 | 2623 | attribute_deprecated int lowres; |
1aea7018 GB |
2624 | |
2625 | /** | |
b1edfce0 AK |
2626 | * the picture in the bitstream |
2627 | * - encoding: Set by libavcodec. | |
2628 | * - decoding: Set by libavcodec. | |
1aea7018 | 2629 | */ |
b1edfce0 | 2630 | AVFrame *coded_frame; |
4ee6a5c1 MN |
2631 | |
2632 | /** | |
b1edfce0 AK |
2633 | * thread count |
2634 | * is used to decide how many independent tasks should be passed to execute() | |
2635 | * - encoding: Set by user. | |
2636 | * - decoding: Set by user. | |
4ee6a5c1 | 2637 | */ |
b1edfce0 | 2638 | int thread_count; |
4ee6a5c1 MN |
2639 | |
2640 | /** | |
b1edfce0 AK |
2641 | * Which multithreading methods to use. |
2642 | * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread, | |
2643 | * so clients which cannot provide future frames should not use it. | |
2644 | * | |
2645 | * - encoding: Set by user, otherwise the default is used. | |
2646 | * - decoding: Set by user, otherwise the default is used. | |
4ee6a5c1 | 2647 | */ |
b1edfce0 AK |
2648 | int thread_type; |
2649 | #define FF_THREAD_FRAME 1 ///< Decode more than one frame at once | |
2650 | #define FF_THREAD_SLICE 2 ///< Decode more than one part of a single frame at once | |
4ee6a5c1 MN |
2651 | |
2652 | /** | |
b1edfce0 AK |
2653 | * Which multithreading methods are in use by the codec. |
2654 | * - encoding: Set by libavcodec. | |
2655 | * - decoding: Set by libavcodec. | |
4ee6a5c1 | 2656 | */ |
b1edfce0 | 2657 | int active_thread_type; |
4ee6a5c1 MN |
2658 | |
2659 | /** | |
b1edfce0 | 2660 | * Set by the client if its custom get_buffer() callback can be called |
ad027866 | 2661 | * synchronously from another thread, which allows faster multithreaded decoding. |
b1edfce0 AK |
2662 | * draw_horiz_band() will be called from other threads regardless of this setting. |
2663 | * Ignored if the default get_buffer() is used. | |
2664 | * - encoding: Set by user. | |
2665 | * - decoding: Set by user. | |
4ee6a5c1 | 2666 | */ |
b1edfce0 | 2667 | int thread_safe_callbacks; |
580a7465 DC |
2668 | |
2669 | /** | |
b1edfce0 AK |
2670 | * The codec may call this to execute several independent things. |
2671 | * It will return only after finishing all tasks. | |
2672 | * The user may replace this with some multithreaded implementation, | |
2673 | * the default implementation will execute the parts serially. | |
2674 | * @param count the number of things to execute | |
2675 | * - encoding: Set by libavcodec, user can override. | |
2676 | * - decoding: Set by libavcodec, user can override. | |
580a7465 | 2677 | */ |
b1edfce0 | 2678 | int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size); |
8d23a86f RD |
2679 | |
2680 | /** | |
2681 | * The codec may call this to execute several independent things. | |
2682 | * It will return only after finishing all tasks. | |
2683 | * The user may replace this with some multithreaded implementation, | |
2684 | * the default implementation will execute the parts serially. | |
2685 | * Also see avcodec_thread_init and e.g. the --enable-pthread configure option. | |
2686 | * @param c context passed also to func | |
2687 | * @param count the number of things to execute | |
2688 | * @param arg2 argument passed unchanged to func | |
2689 | * @param ret return values of executed functions, must have space for "count" values. May be NULL. | |
2690 | * @param func function that will be called count times, with jobnr from 0 to count-1. | |
2691 | * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no | |
2692 | * two instances of func executing at the same time will have the same threadnr. | |
2693 | * @return always 0 currently, but code should handle a future improvement where when any call to func | |
2694 | * returns < 0 no further calls to func may be done and < 0 is returned. | |
2695 | * - encoding: Set by libavcodec, user can override. | |
2696 | * - decoding: Set by libavcodec, user can override. | |
2697 | */ | |
2698 | int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count); | |
096c87f6 | 2699 | |
b1edfce0 AK |
2700 | /** |
2701 | * thread opaque | |
2702 | * Can be used by execute() to store some per AVCodecContext stuff. | |
2703 | * - encoding: set by execute() | |
2704 | * - decoding: set by execute() | |
2705 | */ | |
2706 | void *thread_opaque; | |
23940f14 | 2707 | |
2aa72ecc | 2708 | /** |
b1edfce0 AK |
2709 | * noise vs. sse weight for the nsse comparsion function |
2710 | * - encoding: Set by user. | |
2aa72ecc JZ |
2711 | * - decoding: unused |
2712 | */ | |
b1edfce0 | 2713 | int nsse_weight; |
cb2c971d AJ |
2714 | |
2715 | /** | |
b1edfce0 AK |
2716 | * profile |
2717 | * - encoding: Set by user. | |
2718 | * - decoding: Set by libavcodec. | |
cb2c971d | 2719 | */ |
b1edfce0 AK |
2720 | int profile; |
2721 | #define FF_PROFILE_UNKNOWN -99 | |
2722 | #define FF_PROFILE_RESERVED -100 | |
2723 | ||
2724 | #define FF_PROFILE_AAC_MAIN 0 | |
2725 | #define FF_PROFILE_AAC_LOW 1 | |
2726 | #define FF_PROFILE_AAC_SSR 2 | |
2727 | #define FF_PROFILE_AAC_LTP 3 | |
372597e5 MS |
2728 | #define FF_PROFILE_AAC_HE 4 |
2729 | #define FF_PROFILE_AAC_HE_V2 28 | |
2730 | #define FF_PROFILE_AAC_LD 22 | |
2731 | #define FF_PROFILE_AAC_ELD 38 | |
b1edfce0 AK |
2732 | |
2733 | #define FF_PROFILE_DTS 20 | |
2734 | #define FF_PROFILE_DTS_ES 30 | |
2735 | #define FF_PROFILE_DTS_96_24 40 | |
2736 | #define FF_PROFILE_DTS_HD_HRA 50 | |
2737 | #define FF_PROFILE_DTS_HD_MA 60 | |
2738 | ||
2739 | #define FF_PROFILE_MPEG2_422 0 | |
2740 | #define FF_PROFILE_MPEG2_HIGH 1 | |
2741 | #define FF_PROFILE_MPEG2_SS 2 | |
2742 | #define FF_PROFILE_MPEG2_SNR_SCALABLE 3 | |
2743 | #define FF_PROFILE_MPEG2_MAIN 4 | |
2744 | #define FF_PROFILE_MPEG2_SIMPLE 5 | |
2745 | ||
2746 | #define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag | |
2747 | #define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag | |
2748 | ||
2749 | #define FF_PROFILE_H264_BASELINE 66 | |
2750 | #define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED) | |
2751 | #define FF_PROFILE_H264_MAIN 77 | |
2752 | #define FF_PROFILE_H264_EXTENDED 88 | |
2753 | #define FF_PROFILE_H264_HIGH 100 | |
2754 | #define FF_PROFILE_H264_HIGH_10 110 | |
2755 | #define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA) | |
2756 | #define FF_PROFILE_H264_HIGH_422 122 | |
2757 | #define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA) | |
2758 | #define FF_PROFILE_H264_HIGH_444 144 | |
2759 | #define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244 | |
2760 | #define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA) | |
2761 | #define FF_PROFILE_H264_CAVLC_444 44 | |
2762 | ||
2763 | #define FF_PROFILE_VC1_SIMPLE 0 | |
2764 | #define FF_PROFILE_VC1_MAIN 1 | |
2765 | #define FF_PROFILE_VC1_COMPLEX 2 | |
2766 | #define FF_PROFILE_VC1_ADVANCED 3 | |
2767 | ||
2768 | #define FF_PROFILE_MPEG4_SIMPLE 0 | |
2769 | #define FF_PROFILE_MPEG4_SIMPLE_SCALABLE 1 | |
2770 | #define FF_PROFILE_MPEG4_CORE 2 | |
2771 | #define FF_PROFILE_MPEG4_MAIN 3 | |
2772 | #define FF_PROFILE_MPEG4_N_BIT 4 | |
2773 | #define FF_PROFILE_MPEG4_SCALABLE_TEXTURE 5 | |
2774 | #define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION 6 | |
2775 | #define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE 7 | |
2776 | #define FF_PROFILE_MPEG4_HYBRID 8 | |
2777 | #define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME 9 | |
2778 | #define FF_PROFILE_MPEG4_CORE_SCALABLE 10 | |
2779 | #define FF_PROFILE_MPEG4_ADVANCED_CODING 11 | |
2780 | #define FF_PROFILE_MPEG4_ADVANCED_CORE 12 | |
2781 | #define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13 | |
2782 | #define FF_PROFILE_MPEG4_SIMPLE_STUDIO 14 | |
2783 | #define FF_PROFILE_MPEG4_ADVANCED_SIMPLE 15 | |
393cbb96 MN |
2784 | |
2785 | /** | |
b1edfce0 AK |
2786 | * level |
2787 | * - encoding: Set by user. | |
2788 | * - decoding: Set by libavcodec. | |
393cbb96 | 2789 | */ |
b1edfce0 AK |
2790 | int level; |
2791 | #define FF_LEVEL_UNKNOWN -99 | |
37b00b47 | 2792 | |
37b00b47 | 2793 | /** |
37b00b47 | 2794 | * |
b1edfce0 AK |
2795 | * - encoding: unused |
2796 | * - decoding: Set by user. | |
37b00b47 | 2797 | */ |
b1edfce0 | 2798 | enum AVDiscard skip_loop_filter; |
37b00b47 AS |
2799 | |
2800 | /** | |
b1edfce0 AK |
2801 | * |
2802 | * - encoding: unused | |
2803 | * - decoding: Set by user. | |
37b00b47 | 2804 | */ |
b1edfce0 | 2805 | enum AVDiscard skip_idct; |
37b00b47 AS |
2806 | |
2807 | /** | |
b1edfce0 AK |
2808 | * |
2809 | * - encoding: unused | |
37b00b47 AS |
2810 | * - decoding: Set by user. |
2811 | */ | |
b1edfce0 | 2812 | enum AVDiscard skip_frame; |
55bad0c6 CM |
2813 | |
2814 | /** | |
b1edfce0 AK |
2815 | * Header containing style information for text subtitles. |
2816 | * For SUBTITLE_ASS subtitle type, it should contain the whole ASS | |
2817 | * [Script Info] and [V4+ Styles] section, plus the [Events] line and | |
2818 | * the Format line following. It shouldn't include any Dialogue line. | |
2819 | * - encoding: Set/allocated/freed by user (before avcodec_open2()) | |
2820 | * - decoding: Set/allocated/freed by libavcodec (by avcodec_open2()) | |
55bad0c6 | 2821 | */ |
b1edfce0 AK |
2822 | uint8_t *subtitle_header; |
2823 | int subtitle_header_size; | |
34b47d7c JR |
2824 | |
2825 | /** | |
b1edfce0 | 2826 | * Simulates errors in the bitstream to test error concealment. |
34b47d7c | 2827 | * - encoding: Set by user. |
b1edfce0 | 2828 | * - decoding: unused |
64150ff0 | 2829 | */ |
b1edfce0 | 2830 | int error_rate; |
582f2311 DB |
2831 | |
2832 | /** | |
b1edfce0 AK |
2833 | * Current packet as passed into the decoder, to avoid having |
2834 | * to pass the packet into every function. Currently only valid | |
2835 | * inside lavc and get/release_buffer callbacks. | |
2836 | * - decoding: set by avcodec_decode_*, read by get_buffer() for setting pkt_pts | |
582f2311 | 2837 | * - encoding: unused |
582f2311 | 2838 | */ |
b1edfce0 | 2839 | AVPacket *pkt; |
f3a29b75 JR |
2840 | |
2841 | /** | |
b1edfce0 AK |
2842 | * VBV delay coded in the last frame (in periods of a 27 MHz clock). |
2843 | * Used for compliant TS muxing. | |
2844 | * - encoding: Set by libavcodec. | |
2845 | * - decoding: unused. | |
4bf3c8f2 | 2846 | */ |
b1edfce0 | 2847 | uint64_t vbv_delay; |
de6d9b64 FB |
2848 | } AVCodecContext; |
2849 | ||
64863965 | 2850 | /** |
060ec0a8 AH |
2851 | * AVProfile. |
2852 | */ | |
2853 | typedef struct AVProfile { | |
2854 | int profile; | |
2855 | const char *name; ///< short name for the profile | |
2856 | } AVProfile; | |
2857 | ||
84626b36 AK |
2858 | typedef struct AVCodecDefault AVCodecDefault; |
2859 | ||
060ec0a8 | 2860 | /** |
64863965 MN |
2861 | * AVCodec. |
2862 | */ | |
de6d9b64 | 2863 | typedef struct AVCodec { |
6b0cdb6e NG |
2864 | /** |
2865 | * Name of the codec implementation. | |
2866 | * The name is globally unique among encoders and among decoders (but an | |
2867 | * encoder and a decoder can share the same name). | |
2868 | * This is the primary way to find a codec from the user perspective. | |
2869 | */ | |
18f77016 | 2870 | const char *name; |
f5f49a66 AK |
2871 | /** |
2872 | * Descriptive name for the codec, meant to be more human readable than name. | |
2873 | * You should use the NULL_IF_CONFIG_SMALL() macro to define it. | |
2874 | */ | |
2875 | const char *long_name; | |
72415b2a | 2876 | enum AVMediaType type; |
36ef5369 | 2877 | enum AVCodecID id; |
a2d11246 MN |
2878 | /** |
2879 | * Codec capabilities. | |
2880 | * see CODEC_CAP_* | |
2881 | */ | |
bf89e6b1 | 2882 | int capabilities; |
716e31ea | 2883 | const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0} |
1beb670a | 2884 | const enum PixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1 |
3ade5d56 | 2885 | const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0 |
5d6e4c16 | 2886 | const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1 |
cc276c85 | 2887 | const uint64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0 |
2bcbd984 | 2888 | attribute_deprecated uint8_t max_lowres; ///< maximum value for lowres supported by the decoder |
567ad0e3 | 2889 | const AVClass *priv_class; ///< AVClass for the private context |
060ec0a8 | 2890 | const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} |
37b00b47 | 2891 | |
f5f49a66 AK |
2892 | /***************************************************************** |
2893 | * No fields below this line are part of the public API. They | |
2894 | * may not be used outside of libavcodec and can be changed and | |
2895 | * removed at will. | |
2896 | * New public fields should be added right above. | |
2897 | ***************************************************************** | |
2898 | */ | |
2899 | int priv_data_size; | |
2900 | struct AVCodec *next; | |
37b00b47 | 2901 | /** |
21a19b79 | 2902 | * @name Frame-level threading support functions |
37b00b47 AS |
2903 | * @{ |
2904 | */ | |
2905 | /** | |
2906 | * If defined, called on thread contexts when they are created. | |
2907 | * If the codec allocates writable tables in init(), re-allocate them here. | |
2908 | * priv_data will be set to a copy of the original. | |
2909 | */ | |
2910 | int (*init_thread_copy)(AVCodecContext *); | |
2911 | /** | |
2912 | * Copy necessary context variables from a previous thread context to the current one. | |
2913 | * If not defined, the next thread will start automatically; otherwise, the codec | |
2914 | * must call ff_thread_finish_setup(). | |
2915 | * | |
2916 | * dst and src will (rarely) point to the same context, in which case memcpy should be skipped. | |
2917 | */ | |
2918 | int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src); | |
2919 | /** @} */ | |
84626b36 AK |
2920 | |
2921 | /** | |
2922 | * Private codec-specific defaults. | |
2923 | */ | |
2924 | const AVCodecDefault *defaults; | |
d97efd7f AK |
2925 | |
2926 | /** | |
2927 | * Initialize codec static data, called from avcodec_register(). | |
2928 | */ | |
2929 | void (*init_static_data)(struct AVCodec *codec); | |
b2c75b6e | 2930 | |
f5f49a66 AK |
2931 | int (*init)(AVCodecContext *); |
2932 | int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data); | |
b2c75b6e JR |
2933 | /** |
2934 | * Encode data to an AVPacket. | |
2935 | * | |
2936 | * @param avctx codec context | |
2937 | * @param avpkt output AVPacket (may contain a user-provided buffer) | |
2938 | * @param[in] frame AVFrame containing the raw data to be encoded | |
2939 | * @param[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a | |
2940 | * non-empty packet was returned in avpkt. | |
2941 | * @return 0 on success, negative error code on failure | |
2942 | */ | |
2943 | int (*encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, | |
2944 | int *got_packet_ptr); | |
f5f49a66 AK |
2945 | int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt); |
2946 | int (*close)(AVCodecContext *); | |
2947 | /** | |
2948 | * Flush buffers. | |
2949 | * Will be called when seeking | |
2950 | */ | |
2951 | void (*flush)(AVCodecContext *); | |
de6d9b64 FB |
2952 | } AVCodec; |
2953 | ||
97d96aaa | 2954 | /** |
40e5d31b GB |
2955 | * AVHWAccel. |
2956 | */ | |
2957 | typedef struct AVHWAccel { | |
2958 | /** | |
2959 | * Name of the hardware accelerated codec. | |
2960 | * The name is globally unique among encoders and among decoders (but an | |
2961 | * encoder and a decoder can share the same name). | |
2962 | */ | |
2963 | const char *name; | |
2964 | ||
2965 | /** | |
2966 | * Type of codec implemented by the hardware accelerator. | |
2967 | * | |
72415b2a | 2968 | * See AVMEDIA_TYPE_xxx |
40e5d31b | 2969 | */ |
72415b2a | 2970 | enum AVMediaType type; |
40e5d31b GB |
2971 | |
2972 | /** | |
2973 | * Codec implemented by the hardware accelerator. | |
2974 | * | |
36ef5369 | 2975 | * See AV_CODEC_ID_xxx |
40e5d31b | 2976 | */ |
36ef5369 | 2977 | enum AVCodecID id; |
40e5d31b GB |
2978 | |
2979 | /** | |
2980 | * Supported pixel format. | |
2981 | * | |
2982 | * Only hardware accelerated formats are supported here. | |
2983 | */ | |
2984 | enum PixelFormat pix_fmt; | |
2985 | ||
2986 | /** | |
2987 | * Hardware accelerated codec capabilities. | |
2988 | * see FF_HWACCEL_CODEC_CAP_* | |
2989 | */ | |
2990 | int capabilities; | |
2991 | ||
2992 | struct AVHWAccel *next; | |
2993 | ||
2994 | /** | |
2995 | * Called at the beginning of each frame or field picture. | |
2996 | * | |
2997 | * Meaningful frame information (codec specific) is guaranteed to | |
2998 | * be parsed at this point. This function is mandatory. | |
2999 | * | |
bf7e799c | 3000 | * Note that buf can be NULL along with buf_size set to 0. |
40e5d31b GB |
3001 | * Otherwise, this means the whole frame is available at this point. |
3002 | * | |
3003 | * @param avctx the codec context | |
3004 | * @param buf the frame data buffer base | |
3005 | * @param buf_size the size of the frame in bytes | |
3006 | * @return zero if successful, a negative value otherwise | |
3007 | */ | |
3008 | int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size); | |
3009 | ||
3010 | /** | |
3011 | * Callback for each slice. | |
3012 | * | |
3013 | * Meaningful slice information (codec specific) is guaranteed to | |
3014 | * be parsed at this point. This function is mandatory. | |
3015 | * | |
3016 | * @param avctx the codec context | |
3017 | * @param buf the slice data buffer base | |
3018 | * @param buf_size the size of the slice in bytes | |
3019 | * @return zero if successful, a negative value otherwise | |
3020 | */ | |
3021 | int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size); | |
3022 | ||
3023 | /** | |
3024 | * Called at the end of each frame or field picture. | |
3025 | * | |
3026 | * The whole picture is parsed at this point and can now be sent | |
3027 | * to the hardware accelerator. This function is mandatory. | |
3028 | * | |
3029 | * @param avctx the codec context | |
3030 | * @return zero if successful, a negative value otherwise | |
3031 | */ | |
3032 | int (*end_frame)(AVCodecContext *avctx); | |
68e5d523 GB |
3033 | |
3034 | /** | |
3035 | * Size of HW accelerator private data. | |
3036 | * | |
cd823ff9 GB |
3037 | * Private data is allocated with av_mallocz() before |
3038 | * AVCodecContext.get_buffer() and deallocated after | |
3039 | * AVCodecContext.release_buffer(). | |
68e5d523 GB |
3040 | */ |
3041 | int priv_data_size; | |
40e5d31b GB |
3042 | } AVHWAccel; |
3043 | ||
3044 | /** | |
6aadfbda AK |
3045 | * @defgroup lavc_picture AVPicture |
3046 | * | |
3047 | * Functions for working with AVPicture | |
3048 | * @{ | |
3049 | */ | |
3050 | ||
3051 | /** | |
d7425f59 MN |
3052 | * four components are given, that's all. |
3053 | * the last component is alpha | |
3054 | */ | |
de6d9b64 | 3055 | typedef struct AVPicture { |
560f773c JR |
3056 | uint8_t *data[AV_NUM_DATA_POINTERS]; |
3057 | int linesize[AV_NUM_DATA_POINTERS]; ///< number of bytes per line | |
de6d9b64 FB |
3058 | } AVPicture; |
3059 | ||
6aadfbda AK |
3060 | /** |
3061 | * @} | |
3062 | */ | |
3063 | ||
63e4c8a6 AK |
3064 | #define AVPALETTE_SIZE 1024 |
3065 | #define AVPALETTE_COUNT 256 | |
ba118447 | 3066 | |
c66216ed MN |
3067 | enum AVSubtitleType { |
3068 | SUBTITLE_NONE, | |
3069 | ||
3070 | SUBTITLE_BITMAP, ///< A bitmap, pict will be set | |
3071 | ||
3072 | /** | |
3073 | * Plain text, the text field must be set by the decoder and is | |
3074 | * authoritative. ass and pict fields may contain approximations. | |
3075 | */ | |
3076 | SUBTITLE_TEXT, | |
3077 | ||
3078 | /** | |
3079 | * Formatted text, the ass field must be set by the decoder and is | |
3080 | * authoritative. pict and text fields may contain approximations. | |
3081 | */ | |
3082 | SUBTITLE_ASS, | |
3083 | }; | |
3084 | ||
c6ec28b1 | 3085 | typedef struct AVSubtitleRect { |
ebc466bb MN |
3086 | int x; ///< top left corner of pict, undefined when pict is not set |
3087 | int y; ///< top left corner of pict, undefined when pict is not set | |
3088 | int w; ///< width of pict, undefined when pict is not set | |
3089 | int h; ///< height of pict, undefined when pict is not set | |
3090 | int nb_colors; ///< number of colors in pict, undefined when pict is not set | |
25b4c651 MN |
3091 | |
3092 | /** | |
3093 | * data+linesize for the bitmap of this subtitle. | |
3094 | * can be set for text/ass as well once they where rendered | |
3095 | */ | |
3096 | AVPicture pict; | |
f656106f MN |
3097 | enum AVSubtitleType type; |
3098 | ||
3099 | char *text; ///< 0 terminated plain UTF-8 text | |
3100 | ||
3101 | /** | |
3102 | * 0 terminated ASS/SSA compatible event line. | |
3103 | * The pressentation of this is unaffected by the other values in this | |
3104 | * struct. | |
3105 | */ | |
3106 | char *ass; | |
c6ec28b1 MN |
3107 | } AVSubtitleRect; |
3108 | ||
3109 | typedef struct AVSubtitle { | |
3110 | uint16_t format; /* 0 = graphics */ | |
3111 | uint32_t start_display_time; /* relative to packet pts, in ms */ | |
3112 | uint32_t end_display_time; /* relative to packet pts, in ms */ | |
ebc466bb | 3113 | unsigned num_rects; |
db4fac64 | 3114 | AVSubtitleRect **rects; |
4bbe788a | 3115 | int64_t pts; ///< Same as packet pts, in AV_TIME_BASE |
240c1657 FB |
3116 | } AVSubtitle; |
3117 | ||
294b3a50 AK |
3118 | /** |
3119 | * If c is NULL, returns the first registered codec, | |
3120 | * if c is non-NULL, returns the next registered codec after c, | |
3121 | * or NULL if c is the last one. | |
3122 | */ | |
3123 | AVCodec *av_codec_next(AVCodec *c); | |
3124 | ||
3125 | /** | |
3126 | * Return the LIBAVCODEC_VERSION_INT constant. | |
3127 | */ | |
3128 | unsigned avcodec_version(void); | |
3129 | ||
3130 | /** | |
3131 | * Return the libavcodec build-time configuration. | |
3132 | */ | |
3133 | const char *avcodec_configuration(void); | |
3134 | ||
3135 | /** | |
3136 | * Return the libavcodec license. | |
3137 | */ | |
3138 | const char *avcodec_license(void); | |
3139 | ||
3140 | /** | |
3141 | * Register the codec codec and initialize libavcodec. | |
3142 | * | |
3143 | * @warning either this function or avcodec_register_all() must be called | |
3144 | * before any other libavcodec functions. | |
3145 | * | |
3146 | * @see avcodec_register_all() | |
3147 | */ | |
3148 | void avcodec_register(AVCodec *codec); | |
3149 | ||
3150 | /** | |
3151 | * Register all the codecs, parsers and bitstream filters which were enabled at | |
3152 | * configuration time. If you do not call this function you can select exactly | |
3153 | * which formats you want to support, by using the individual registration | |
3154 | * functions. | |
3155 | * | |
3156 | * @see avcodec_register | |
3157 | * @see av_register_codec_parser | |
3158 | * @see av_register_bitstream_filter | |
3159 | */ | |
3160 | void avcodec_register_all(void); | |
3161 | ||
3162 | /** | |
3163 | * Allocate an AVCodecContext and set its fields to default values. The | |
3164 | * resulting struct can be deallocated by calling avcodec_close() on it followed | |
3165 | * by av_free(). | |
3166 | * | |
3167 | * @param codec if non-NULL, allocate private data and initialize defaults | |
3168 | * for the given codec. It is illegal to then call avcodec_open2() | |
3169 | * with a different codec. | |
3170 | * If NULL, then the codec-specific defaults won't be initialized, | |
3171 | * which may result in suboptimal default settings (this is | |
3172 | * important mainly for encoders, e.g. libx264). | |
3173 | * | |
3174 | * @return An AVCodecContext filled with default values or NULL on failure. | |
3175 | * @see avcodec_get_context_defaults | |
3176 | */ | |
3177 | AVCodecContext *avcodec_alloc_context3(AVCodec *codec); | |
3178 | ||
3179 | /** | |
3180 | * Set the fields of the given AVCodecContext to default values corresponding | |
3181 | * to the given codec (defaults may be codec-dependent). | |
3182 | * | |
3183 | * Do not call this function if a non-NULL codec has been passed | |
3184 | * to avcodec_alloc_context3() that allocated this AVCodecContext. | |
3185 | * If codec is non-NULL, it is illegal to call avcodec_open2() with a | |
3186 | * different codec on this AVCodecContext. | |
3187 | */ | |
3188 | int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec); | |
3189 | ||
3190 | /** | |
3191 | * Get the AVClass for AVCodecContext. It can be used in combination with | |
3192 | * AV_OPT_SEARCH_FAKE_OBJ for examining options. | |
3193 | * | |
3194 | * @see av_opt_find(). | |
3195 | */ | |
3196 | const AVClass *avcodec_get_class(void); | |
3197 | ||
3198 | /** | |
3199 | * Copy the settings of the source AVCodecContext into the destination | |
3200 | * AVCodecContext. The resulting destination codec context will be | |
3201 | * unopened, i.e. you are required to call avcodec_open2() before you | |
3202 | * can use this AVCodecContext to decode/encode video/audio data. | |
3203 | * | |
3204 | * @param dest target codec context, should be initialized with | |
3205 | * avcodec_alloc_context3(), but otherwise uninitialized | |
3206 | * @param src source codec context | |
3207 | * @return AVERROR() on error (e.g. memory allocation error), 0 on success | |
3208 | */ | |
3209 | int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src); | |
3210 | ||
3211 | /** | |
3212 | * Allocate an AVFrame and set its fields to default values. The resulting | |
3213 | * struct can be deallocated by simply calling av_free(). | |
3214 | * | |
3215 | * @return An AVFrame filled with default values or NULL on failure. | |
3216 | * @see avcodec_get_frame_defaults | |
3217 | */ | |
3218 | AVFrame *avcodec_alloc_frame(void); | |
3219 | ||
3220 | /** | |
3221 | * Set the fields of the given AVFrame to default values. | |
3222 | * | |
3223 | * @param pic The AVFrame of which the fields should be set to default values. | |
3224 | */ | |
3225 | void avcodec_get_frame_defaults(AVFrame *pic); | |
3226 | ||
3227 | /** | |
3228 | * Initialize the AVCodecContext to use the given AVCodec. Prior to using this | |
3229 | * function the context has to be allocated with avcodec_alloc_context3(). | |
3230 | * | |
3231 | * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), | |
3232 | * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for | |
3233 | * retrieving a codec. | |
3234 | * | |
3235 | * @warning This function is not thread safe! | |
3236 | * | |
3237 | * @code | |
3238 | * avcodec_register_all(); | |
3239 | * av_dict_set(&opts, "b", "2.5M", 0); | |
104e10fb | 3240 | * codec = avcodec_find_decoder(AV_CODEC_ID_H264); |
294b3a50 AK |
3241 | * if (!codec) |
3242 | * exit(1); | |
3243 | * | |
3244 | * context = avcodec_alloc_context3(codec); | |
3245 | * | |
3246 | * if (avcodec_open2(context, codec, opts) < 0) | |
3247 | * exit(1); | |
3248 | * @endcode | |
3249 | * | |
3250 | * @param avctx The context to initialize. | |
3251 | * @param codec The codec to open this context for. If a non-NULL codec has been | |
3252 | * previously passed to avcodec_alloc_context3() or | |
3253 | * avcodec_get_context_defaults3() for this context, then this | |
3254 | * parameter MUST be either NULL or equal to the previously passed | |
3255 | * codec. | |
3256 | * @param options A dictionary filled with AVCodecContext and codec-private options. | |
3257 | * On return this object will be filled with options that were not found. | |
3258 | * | |
3259 | * @return zero on success, a negative value on error | |
3260 | * @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(), | |
3261 | * av_dict_set(), av_opt_find(). | |
3262 | */ | |
3263 | int avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVDictionary **options); | |
3264 | ||
3265 | /** | |
3266 | * Close a given AVCodecContext and free all the data associated with it | |
3267 | * (but not the AVCodecContext itself). | |
3268 | * | |
3269 | * Calling this function on an AVCodecContext that hasn't been opened will free | |
3270 | * the codec-specific data allocated in avcodec_alloc_context3() / | |
3271 | * avcodec_get_context_defaults3() with a non-NULL codec. Subsequent calls will | |
3272 | * do nothing. | |
3273 | */ | |
3274 | int avcodec_close(AVCodecContext *avctx); | |
3275 | ||
3276 | /** | |
3277 | * Free all allocated data in the given subtitle struct. | |
3278 | * | |
3279 | * @param sub AVSubtitle to free. | |
3280 | */ | |
3281 | void avsubtitle_free(AVSubtitle *sub); | |
3282 | ||
3283 | /** | |
3284 | * @} | |
3285 | */ | |
3286 | ||
30f3f625 AK |
3287 | /** |
3288 | * @addtogroup lavc_packet | |
3289 | * @{ | |
3290 | */ | |
cdd8930e | 3291 | |
80d403fc RD |
3292 | /** |
3293 | * @deprecated use NULL instead | |
3294 | */ | |
3295 | attribute_deprecated void av_destruct_packet_nofree(AVPacket *pkt); | |
cdd8930e TB |
3296 | |
3297 | /** | |
3298 | * Default packet destructor. | |
3299 | */ | |
3300 | void av_destruct_packet(AVPacket *pkt); | |
3301 | ||
3302 | /** | |
3303 | * Initialize optional fields of a packet with default values. | |
3304 | * | |
7146177d SE |
3305 | * Note, this does not touch the data and size members, which have to be |
3306 | * initialized separately. | |
3307 | * | |
cdd8930e TB |
3308 | * @param pkt packet |
3309 | */ | |
3310 | void av_init_packet(AVPacket *pkt); | |
3311 | ||
3312 | /** | |
3313 | * Allocate the payload of a packet and initialize its fields with | |
3314 | * default values. | |
3315 | * | |
3316 | * @param pkt packet | |
3317 | * @param size wanted payload size | |
3318 | * @return 0 if OK, AVERROR_xxx otherwise | |
3319 | */ | |
3320 | int av_new_packet(AVPacket *pkt, int size); | |
3321 | ||
3322 | /** | |
feb993e5 RD |
3323 | * Reduce packet size, correctly zeroing padding |
3324 | * | |
3325 | * @param pkt packet | |
3326 | * @param size new size | |
3327 | */ | |
3328 | void av_shrink_packet(AVPacket *pkt, int size); | |
3329 | ||
3330 | /** | |
a08d918e RD |
3331 | * Increase packet size, correctly zeroing padding |
3332 | * | |
3333 | * @param pkt packet | |
3334 | * @param grow_by number of bytes by which to increase the size of the packet | |
3335 | */ | |
3336 | int av_grow_packet(AVPacket *pkt, int grow_by); | |
3337 | ||
3338 | /** | |
cdd8930e TB |
3339 | * @warning This is a hack - the packet memory allocation stuff is broken. The |
3340 | * packet is allocated if it was not really allocated. | |
3341 | */ | |
3342 | int av_dup_packet(AVPacket *pkt); | |
3343 | ||
3344 | /** | |
3345 | * Free a packet. | |
3346 | * | |
3347 | * @param pkt packet to free | |
3348 | */ | |
ce1d9c85 | 3349 | void av_free_packet(AVPacket *pkt); |
240c1657 | 3350 | |
4de339e2 KS |
3351 | /** |
3352 | * Allocate new information of a packet. | |
3353 | * | |
3354 | * @param pkt packet | |
3355 | * @param type side information type | |
3356 | * @param size side information size | |
3357 | * @return pointer to fresh allocated data or NULL otherwise | |
3358 | */ | |
3359 | uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, | |
3360 | int size); | |
3361 | ||
3362 | /** | |
442c1320 MS |
3363 | * Shrink the already allocated side data buffer |
3364 | * | |
3365 | * @param pkt packet | |
3366 | * @param type side information type | |
3367 | * @param size new side information size | |
3368 | * @return 0 on success, < 0 on failure | |
3369 | */ | |
3370 | int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type, | |
3371 | int size); | |
3372 | ||
3373 | /** | |
4de339e2 KS |
3374 | * Get side information from packet. |
3375 | * | |
3376 | * @param pkt packet | |
3377 | * @param type desired side information type | |
3378 | * @param size pointer for side information size to store (optional) | |
3379 | * @return pointer to data if present or NULL otherwise | |
3380 | */ | |
3381 | uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, | |
3382 | int *size); | |
3383 | ||
30f3f625 AK |
3384 | /** |
3385 | * @} | |
3386 | */ | |
3387 | ||
d1e3c6fd | 3388 | /** |
c8ef8464 AK |
3389 | * @addtogroup lavc_decoding |
3390 | * @{ | |
d1e3c6fd | 3391 | */ |
938b6253 SS |
3392 | |
3393 | /** | |
c8ef8464 | 3394 | * Find a registered decoder with a matching codec ID. |
938b6253 |