Commit | Line | Data |
---|---|---|
04d7f601 DB |
1 | /* |
2 | * copyright (c) 2001 Fabrice Bellard | |
3 | * | |
b78e7197 DB |
4 | * This file is part of FFmpeg. |
5 | * | |
6 | * FFmpeg 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 | * |
b78e7197 | 11 | * FFmpeg 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 | |
b78e7197 | 17 | * License along with FFmpeg; 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 | ||
5b21bdab DB |
21 | #ifndef FFMPEG_AVCODEC_H |
22 | #define FFMPEG_AVCODEC_H | |
a96b68b7 | 23 | |
36df8805 MN |
24 | /** |
25 | * @file avcodec.h | |
f5bccd85 | 26 | * external API header |
36df8805 MN |
27 | */ |
28 | ||
29 | ||
c11c2bc2 | 30 | #include "avutil.h" |
4b813d5c | 31 | #include <sys/types.h> /* size_t */ |
de6d9b64 | 32 | |
bb270c08 | 33 | #define AV_STRINGIFY(s) AV_TOSTRING(s) |
7b7d86f1 | 34 | #define AV_TOSTRING(s) #s |
5aa083ee | 35 | |
12877faf KS |
36 | #define LIBAVCODEC_VERSION_INT ((51<<16)+(48<<8)+0) |
37 | #define LIBAVCODEC_VERSION 51.48.0 | |
bb270c08 | 38 | #define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT |
5aa083ee | 39 | |
bb270c08 | 40 | #define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) |
ce2749d2 | 41 | |
8da9266c | 42 | #define AV_NOPTS_VALUE INT64_C(0x8000000000000000) |
bb270c08 DB |
43 | #define AV_TIME_BASE 1000000 |
44 | #define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE} | |
9740beff | 45 | |
7ebf5927 | 46 | /** |
6b0cdb6e NG |
47 | * Identifies the syntax and semantics of the bitstream. |
48 | * The principle is roughly: | |
49 | * Two decoders with the same ID can decode the same streams. | |
50 | * Two encoders with the same ID can encode compatible streams. | |
51 | * There may be slight deviations from the principle due to implementation | |
52 | * details. | |
7ebf5927 | 53 | * |
f5bccd85 DB |
54 | * If you add a codec ID to this list, add it so that |
55 | * 1. no value of a existing codec ID changes (that would break ABI), | |
56 | * 2. it is as close as possible to similar codecs. | |
7ebf5927 | 57 | */ |
de6d9b64 | 58 | enum CodecID { |
115329f1 | 59 | CODEC_ID_NONE, |
de6d9b64 | 60 | CODEC_ID_MPEG1VIDEO, |
f5bccd85 | 61 | CODEC_ID_MPEG2VIDEO, /* preferred ID for MPEG-1/2 video decoding */ |
fb364ada | 62 | CODEC_ID_MPEG2VIDEO_XVMC, |
c6148de2 | 63 | CODEC_ID_H261, |
de6d9b64 FB |
64 | CODEC_ID_H263, |
65 | CODEC_ID_RV10, | |
68b94c35 | 66 | CODEC_ID_RV20, |
de6d9b64 | 67 | CODEC_ID_MJPEG, |
b135d9fb | 68 | CODEC_ID_MJPEGB, |
b1e6b355 | 69 | CODEC_ID_LJPEG, |
5e83dec4 | 70 | CODEC_ID_SP5X, |
5639729b | 71 | CODEC_ID_JPEGLS, |
bf89e6b1 | 72 | CODEC_ID_MPEG4, |
de6d9b64 | 73 | CODEC_ID_RAWVIDEO, |
84afee34 MN |
74 | CODEC_ID_MSMPEG4V1, |
75 | CODEC_ID_MSMPEG4V2, | |
76 | CODEC_ID_MSMPEG4V3, | |
e1a9dbff | 77 | CODEC_ID_WMV1, |
b50eef3a | 78 | CODEC_ID_WMV2, |
de6d9b64 FB |
79 | CODEC_ID_H263P, |
80 | CODEC_ID_H263I, | |
d4f5d74a | 81 | CODEC_ID_FLV1, |
be8ffec9 | 82 | CODEC_ID_SVQ1, |
8b82a956 | 83 | CODEC_ID_SVQ3, |
020fcc94 | 84 | CODEC_ID_DVVIDEO, |
11f18faf | 85 | CODEC_ID_HUFFYUV, |
f70f7c6d | 86 | CODEC_ID_CYUV, |
0da71265 | 87 | CODEC_ID_H264, |
deabd4fd | 88 | CODEC_ID_INDEO3, |
d86053a4 | 89 | CODEC_ID_VP3, |
f44ee2c3 | 90 | CODEC_ID_THEORA, |
3d2e8cce | 91 | CODEC_ID_ASV1, |
9b56edf5 | 92 | CODEC_ID_ASV2, |
5e20f836 | 93 | CODEC_ID_FFV1, |
e2a7bb28 | 94 | CODEC_ID_4XM, |
be3564ed | 95 | CODEC_ID_VCR1, |
3aff069b | 96 | CODEC_ID_CLJR, |
c3bf0288 | 97 | CODEC_ID_MDEC, |
3ef8be2b MM |
98 | CODEC_ID_ROQ, |
99 | CODEC_ID_INTERPLAY_VIDEO, | |
9937e686 MM |
100 | CODEC_ID_XAN_WC3, |
101 | CODEC_ID_XAN_WC4, | |
2fdf638b MM |
102 | CODEC_ID_RPZA, |
103 | CODEC_ID_CINEPAK, | |
104 | CODEC_ID_WS_VQA, | |
105 | CODEC_ID_MSRLE, | |
106 | CODEC_ID_MSVIDEO1, | |
4120a53a | 107 | CODEC_ID_IDCIN, |
1dc1ed99 | 108 | CODEC_ID_8BPS, |
11e29a41 | 109 | CODEC_ID_SMC, |
42cad81a | 110 | CODEC_ID_FLIC, |
9a4117d5 | 111 | CODEC_ID_TRUEMOTION1, |
fafa0b75 | 112 | CODEC_ID_VMDVIDEO, |
a273bbfb RT |
113 | CODEC_ID_MSZH, |
114 | CODEC_ID_ZLIB, | |
070ed1bc | 115 | CODEC_ID_QTRLE, |
791e7b83 | 116 | CODEC_ID_SNOW, |
9d53d58e | 117 | CODEC_ID_TSCC, |
d0a0bbd2 | 118 | CODEC_ID_ULTI, |
d08d7142 | 119 | CODEC_ID_QDRAW, |
ab711b3c | 120 | CODEC_ID_VIXL, |
acfd8f0f | 121 | CODEC_ID_QPEG, |
17179d2d MN |
122 | CODEC_ID_XVID, |
123 | CODEC_ID_PNG, | |
124 | CODEC_ID_PPM, | |
125 | CODEC_ID_PBM, | |
126 | CODEC_ID_PGM, | |
127 | CODEC_ID_PGMYUV, | |
128 | CODEC_ID_PAM, | |
f37b9768 | 129 | CODEC_ID_FFVHUFF, |
3f05305d MN |
130 | CODEC_ID_RV30, |
131 | CODEC_ID_RV40, | |
10b9c374 | 132 | CODEC_ID_VC1, |
21aa398f | 133 | CODEC_ID_WMV3, |
9c7fb608 | 134 | CODEC_ID_LOCO, |
a8a15e9d | 135 | CODEC_ID_WNV1, |
589f8220 | 136 | CODEC_ID_AASC, |
856dbbff | 137 | CODEC_ID_INDEO2, |
b81f8949 | 138 | CODEC_ID_FRAPS, |
64af6168 | 139 | CODEC_ID_TRUEMOTION2, |
9fa62f2a | 140 | CODEC_ID_BMP, |
e0f80bd7 | 141 | CODEC_ID_CSCD, |
4e114829 | 142 | CODEC_ID_MMVIDEO, |
9c8d8e84 | 143 | CODEC_ID_ZMBV, |
26376701 | 144 | CODEC_ID_AVS, |
348efc18 | 145 | CODEC_ID_SMACKVIDEO, |
dfca23e3 | 146 | CODEC_ID_NUV, |
fd7b1991 | 147 | CODEC_ID_KMVC, |
0919e788 | 148 | CODEC_ID_FLASHSV, |
20ffddb9 | 149 | CODEC_ID_CAVS, |
f31065f6 | 150 | CODEC_ID_JPEG2000, |
eb57c889 | 151 | CODEC_ID_VMNC, |
5ce117c3 AJ |
152 | CODEC_ID_VP5, |
153 | CODEC_ID_VP6, | |
154 | CODEC_ID_VP6F, | |
3689cf16 | 155 | CODEC_ID_TARGA, |
72450e50 | 156 | CODEC_ID_DSICINVIDEO, |
29f86228 | 157 | CODEC_ID_TIERTEXSEQVIDEO, |
a991b1fe | 158 | CODEC_ID_TIFF, |
06d392a7 | 159 | CODEC_ID_GIF, |
3edeab82 | 160 | CODEC_ID_FFH264, |
33a0dd37 | 161 | CODEC_ID_DXA, |
52b6bad2 | 162 | CODEC_ID_DNXHD, |
efb0c399 | 163 | CODEC_ID_THP, |
2d99eed1 | 164 | CODEC_ID_SGI, |
9a0ddd09 | 165 | CODEC_ID_C93, |
1e6c6759 | 166 | CODEC_ID_BETHSOFTVID, |
b46d68c6 | 167 | CODEC_ID_PTX, |
1ca779e7 | 168 | CODEC_ID_TXD, |
91fc2cf1 | 169 | CODEC_ID_VP6A, |
8787d837 | 170 | CODEC_ID_AMV, |
66f7679c | 171 | CODEC_ID_VB, |
a96b68b7 | 172 | |
f5bccd85 | 173 | /* various PCM "codecs" */ |
17179d2d | 174 | CODEC_ID_PCM_S16LE= 0x10000, |
a96b68b7 FB |
175 | CODEC_ID_PCM_S16BE, |
176 | CODEC_ID_PCM_U16LE, | |
177 | CODEC_ID_PCM_U16BE, | |
178 | CODEC_ID_PCM_S8, | |
179 | CODEC_ID_PCM_U8, | |
180 | CODEC_ID_PCM_MULAW, | |
181 | CODEC_ID_PCM_ALAW, | |
b461b3bc RD |
182 | CODEC_ID_PCM_S32LE, |
183 | CODEC_ID_PCM_S32BE, | |
184 | CODEC_ID_PCM_U32LE, | |
185 | CODEC_ID_PCM_U32BE, | |
186 | CODEC_ID_PCM_S24LE, | |
187 | CODEC_ID_PCM_S24BE, | |
188 | CODEC_ID_PCM_U24LE, | |
189 | CODEC_ID_PCM_U24BE, | |
190 | CODEC_ID_PCM_S24DAUD, | |
a11c2a2c | 191 | CODEC_ID_PCM_ZORK, |
0147f198 | 192 | |
f5bccd85 | 193 | /* various ADPCM codecs */ |
17179d2d | 194 | CODEC_ID_ADPCM_IMA_QT= 0x11000, |
0147f198 | 195 | CODEC_ID_ADPCM_IMA_WAV, |
9937e686 MM |
196 | CODEC_ID_ADPCM_IMA_DK3, |
197 | CODEC_ID_ADPCM_IMA_DK4, | |
2fdf638b | 198 | CODEC_ID_ADPCM_IMA_WS, |
7d8379f2 | 199 | CODEC_ID_ADPCM_IMA_SMJPEG, |
0147f198 | 200 | CODEC_ID_ADPCM_MS, |
e2a7bb28 | 201 | CODEC_ID_ADPCM_4XM, |
fc384777 MM |
202 | CODEC_ID_ADPCM_XA, |
203 | CODEC_ID_ADPCM_ADX, | |
7d8379f2 | 204 | CODEC_ID_ADPCM_EA, |
e5966052 | 205 | CODEC_ID_ADPCM_G726, |
b3bfb299 | 206 | CODEC_ID_ADPCM_CT, |
659c3692 | 207 | CODEC_ID_ADPCM_SWF, |
2ff4524e | 208 | CODEC_ID_ADPCM_YAMAHA, |
2433f24f AJ |
209 | CODEC_ID_ADPCM_SBPRO_4, |
210 | CODEC_ID_ADPCM_SBPRO_3, | |
211 | CODEC_ID_ADPCM_SBPRO_2, | |
d1e0d21f | 212 | CODEC_ID_ADPCM_THP, |
3a7f5d07 | 213 | CODEC_ID_ADPCM_IMA_AMV, |
e7583962 PR |
214 | CODEC_ID_ADPCM_EA_R1, |
215 | CODEC_ID_ADPCM_EA_R3, | |
216 | CODEC_ID_ADPCM_EA_R2, | |
7bb65d89 | 217 | CODEC_ID_ADPCM_IMA_EA_SEAD, |
fac84d3c | 218 | CODEC_ID_ADPCM_IMA_EA_EACS, |
271b4095 | 219 | CODEC_ID_ADPCM_EA_XAS, |
891f64b3 | 220 | |
17179d2d MN |
221 | /* AMR */ |
222 | CODEC_ID_AMR_NB= 0x12000, | |
d663a1fd MN |
223 | CODEC_ID_AMR_WB, |
224 | ||
b8414bbd | 225 | /* RealAudio codecs*/ |
17179d2d | 226 | CODEC_ID_RA_144= 0x13000, |
b8414bbd | 227 | CODEC_ID_RA_288, |
3ef8be2b MM |
228 | |
229 | /* various DPCM codecs */ | |
17179d2d | 230 | CODEC_ID_ROQ_DPCM= 0x14000, |
3ef8be2b | 231 | CODEC_ID_INTERPLAY_DPCM, |
9937e686 | 232 | CODEC_ID_XAN_DPCM, |
d08d7142 | 233 | CODEC_ID_SOL_DPCM, |
115329f1 | 234 | |
17179d2d | 235 | CODEC_ID_MP2= 0x15000, |
f5bccd85 | 236 | CODEC_ID_MP3, /* preferred ID for decoding MPEG audio layer 1, 2 or 3 */ |
17179d2d | 237 | CODEC_ID_AAC, |
cbee7a69 | 238 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
17179d2d | 239 | CODEC_ID_MPEG4AAC, |
cbee7a69 | 240 | #endif |
17179d2d MN |
241 | CODEC_ID_AC3, |
242 | CODEC_ID_DTS, | |
243 | CODEC_ID_VORBIS, | |
244 | CODEC_ID_DVAUDIO, | |
245 | CODEC_ID_WMAV1, | |
246 | CODEC_ID_WMAV2, | |
247 | CODEC_ID_MACE3, | |
248 | CODEC_ID_MACE6, | |
249 | CODEC_ID_VMDAUDIO, | |
250 | CODEC_ID_SONIC, | |
251 | CODEC_ID_SONIC_LS, | |
ac2570a8 | 252 | CODEC_ID_FLAC, |
1ede228a | 253 | CODEC_ID_MP3ADU, |
d2a7718d | 254 | CODEC_ID_MP3ON4, |
85ad5695 | 255 | CODEC_ID_SHORTEN, |
5df8a0c6 | 256 | CODEC_ID_ALAC, |
034eeaa1 | 257 | CODEC_ID_WESTWOOD_SND1, |
f5bccd85 | 258 | CODEC_ID_GSM, /* as in Berlin toast format */ |
d9b1c197 | 259 | CODEC_ID_QDM2, |
e0f7e329 | 260 | CODEC_ID_COOK, |
bf3027c8 | 261 | CODEC_ID_TRUESPEECH, |
a24c4a2a | 262 | CODEC_ID_TTA, |
348efc18 | 263 | CODEC_ID_SMACKAUDIO, |
6c496518 | 264 | CODEC_ID_QCELP, |
730581f3 | 265 | CODEC_ID_WAVPACK, |
72450e50 | 266 | CODEC_ID_DSICINAUDIO, |
84ed36da | 267 | CODEC_ID_IMC, |
185c7b6b | 268 | CODEC_ID_MUSEPACK7, |
aad512b4 | 269 | CODEC_ID_MLP, |
f5bccd85 | 270 | CODEC_ID_GSM_MS, /* as found in WAV */ |
10e26bc7 | 271 | CODEC_ID_ATRAC3, |
8950f828 | 272 | CODEC_ID_VOXWARE, |
bf4a1f17 | 273 | CODEC_ID_APE, |
636b13c5 | 274 | CODEC_ID_NELLYMOSER, |
12877faf | 275 | CODEC_ID_MUSEPACK8, |
115329f1 | 276 | |
240c1657 | 277 | /* subtitle codecs */ |
115329f1 DB |
278 | CODEC_ID_DVD_SUBTITLE= 0x17000, |
279 | CODEC_ID_DVB_SUBTITLE, | |
66fc495a | 280 | CODEC_ID_TEXT, /* raw UTF-8 text */ |
7e2643ae | 281 | CODEC_ID_XSUB, |
115329f1 | 282 | |
f5bccd85 DB |
283 | CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG-2 TS |
284 | * stream (only used by libavformat) */ | |
de6d9b64 | 285 | }; |
dcedf586 | 286 | |
abd6a4fc | 287 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
f5bccd85 | 288 | /* CODEC_ID_MP3LAME is obsolete */ |
dcedf586 | 289 | #define CODEC_ID_MP3LAME CODEC_ID_MP3 |
abd6a4fc BC |
290 | #define CODEC_ID_MPEG4AAC CODEC_ID_AAC |
291 | #endif | |
de6d9b64 FB |
292 | |
293 | enum CodecType { | |
4a663d80 | 294 | CODEC_TYPE_UNKNOWN = -1, |
de6d9b64 FB |
295 | CODEC_TYPE_VIDEO, |
296 | CODEC_TYPE_AUDIO, | |
985180a1 | 297 | CODEC_TYPE_DATA, |
240c1657 | 298 | CODEC_TYPE_SUBTITLE, |
9ff77d17 | 299 | CODEC_TYPE_NB |
de6d9b64 FB |
300 | }; |
301 | ||
f5bccd85 DB |
302 | /* Currently unused, may be used if 24/32 bits samples are ever supported. */ |
303 | /* all in native-endian format */ | |
a96b68b7 | 304 | enum SampleFormat { |
9076fee4 | 305 | SAMPLE_FMT_NONE = -1, |
1319a77b AB |
306 | SAMPLE_FMT_U8, ///< unsigned 8 bits |
307 | SAMPLE_FMT_S16, ///< signed 16 bits | |
308 | SAMPLE_FMT_S24, ///< signed 24 bits | |
115329f1 | 309 | SAMPLE_FMT_S32, ///< signed 32 bits |
a3a5f4d6 | 310 | SAMPLE_FMT_FLT, ///< float |
a96b68b7 FB |
311 | }; |
312 | ||
de6d9b64 | 313 | /* in bytes */ |
8170e5fb | 314 | #define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio |
de6d9b64 | 315 | |
d7425f59 | 316 | /** |
cf713bb8 | 317 | * Required number of additionally allocated bytes at the end of the input bitstream for decoding. |
f5bccd85 DB |
318 | * This is mainly needed because some optimized bitstream readers read |
319 | * 32 or 64 bit at once and could read over the end.<br> | |
320 | * Note: If the first 23 bits of the additional bytes are not 0, then damaged | |
321 | * MPEG bitstreams could cause overread and segfault. | |
d7425f59 MN |
322 | */ |
323 | #define FF_INPUT_BUFFER_PADDING_SIZE 8 | |
324 | ||
0ecca7a4 | 325 | /** |
f5bccd85 DB |
326 | * minimum encoding buffer size |
327 | * Used to avoid some checks during header writing. | |
0ecca7a4 MN |
328 | */ |
329 | #define FF_MIN_BUFFER_SIZE 16384 | |
330 | ||
e4986da9 J |
331 | /* motion estimation type, EPZS by default */ |
332 | enum Motion_Est_ID { | |
101bea5f | 333 | ME_ZERO = 1, |
e4986da9 J |
334 | ME_FULL, |
335 | ME_LOG, | |
336 | ME_PHODS, | |
337 | ME_EPZS, | |
51d6a3cf MN |
338 | ME_X1, |
339 | ME_HEX, | |
340 | ME_UMH, | |
341 | ME_ITER, | |
e4986da9 J |
342 | }; |
343 | ||
8c3eba7c | 344 | enum AVDiscard{ |
f5bccd85 DB |
345 | /* We leave some space between them for extensions (drop some |
346 | * keyframes for intra-only or drop just some bidir frames). */ | |
8c3eba7c MN |
347 | AVDISCARD_NONE =-16, ///< discard nothing |
348 | AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi | |
349 | AVDISCARD_NONREF = 8, ///< discard all non reference | |
350 | AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames | |
351 | AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes | |
352 | AVDISCARD_ALL = 48, ///< discard all | |
353 | }; | |
354 | ||
ce980a95 MN |
355 | typedef struct RcOverride{ |
356 | int start_frame; | |
357 | int end_frame; | |
f5bccd85 | 358 | int qscale; // If this is 0 then quality_factor will be used instead. |
ce980a95 MN |
359 | float quality_factor; |
360 | } RcOverride; | |
361 | ||
b0ec9efd | 362 | #define FF_MAX_B_FRAMES 16 |
9dbcbd92 | 363 | |
a949d72e | 364 | /* encoding support |
f5bccd85 DB |
365 | These flags can be passed in AVCodecContext.flags before initialization. |
366 | Note: Not everything is supported yet. | |
a949d72e | 367 | */ |
de6d9b64 | 368 | |
f5bccd85 DB |
369 | #define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale. |
370 | #define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263. | |
371 | #define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC. | |
372 | #define CODEC_FLAG_GMC 0x0020 ///< Use GMC. | |
373 | #define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>. | |
374 | #define CODEC_FLAG_PART 0x0080 ///< Use data partitioning. | |
375 | /* The parent program guarantees that the input for B-frames containing | |
376 | * streams is not written to for at least s->max_b_frames+1 frames, if | |
377 | * this is not set the input will be copied. */ | |
8b4c7dbc | 378 | #define CODEC_FLAG_INPUT_PRESERVED 0x0100 |
273b0cd3 DB |
379 | #define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode. |
380 | #define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode. | |
381 | #define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG). | |
382 | #define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale. | |
383 | #define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges. | |
384 | #define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding. | |
385 | #define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random | |
386 | location instead of only at frame boundaries. */ | |
f5bccd85 DB |
387 | #define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< Normalize adaptive quantization. |
388 | #define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT. | |
389 | #define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay. | |
390 | #define CODEC_FLAG_ALT_SCAN 0x00100000 ///< Use alternate scan. | |
391 | #define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< Use trellis quantization. | |
392 | #define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe. | |
393 | #define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT). | |
21e59552 | 394 | /* Fx : Flag for h263+ extra options */ |
6b936ec6 | 395 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
f5bccd85 | 396 | #define CODEC_FLAG_H263P_AIC 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction (remove this) |
6b936ec6 | 397 | #endif |
f5bccd85 DB |
398 | #define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction |
399 | #define CODEC_FLAG_H263P_UMV 0x02000000 ///< unlimited motion vector | |
400 | #define CODEC_FLAG_CBP_RD 0x04000000 ///< Use rate distortion optimization for cbp. | |
401 | #define CODEC_FLAG_QP_RD 0x08000000 ///< Use rate distortion optimization for qp selectioon. | |
402 | #define CODEC_FLAG_H263P_AIV 0x00000008 ///< H.263 alternative inter VLC | |
332f9ac4 MN |
403 | #define CODEC_FLAG_OBMC 0x00000001 ///< OBMC |
404 | #define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter | |
bb198e19 MN |
405 | #define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000 |
406 | #define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation | |
f5bccd85 | 407 | #define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data. |
f2cf4a6b | 408 | #define CODEC_FLAG_CLOSED_GOP ((int)0x80000000) |
f5bccd85 DB |
409 | #define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks. |
410 | #define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size. | |
411 | #define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding. | |
412 | #define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata. | |
413 | #define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow B-frames to be used as references. | |
414 | #define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for B-frames | |
d3075ed5 | 415 | #define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock |
58f7833e RS |
416 | #define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform |
417 | #define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip | |
418 | #define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters | |
f5bccd85 DB |
419 | #define CODEC_FLAG2_BRDO 0x00000400 ///< B-frame rate-distortion optimization |
420 | #define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< Use MPEG-2 intra VLC table. | |
421 | #define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC). | |
422 | #define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format. | |
423 | #define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping | |
424 | #define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries. | |
425 | #define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer. | |
6fc5b059 | 426 | |
21e59552 | 427 | /* Unsupported options : |
bb270c08 DB |
428 | * Syntax Arithmetic coding (SAC) |
429 | * Reference Picture Selection | |
eafcac6a | 430 | * Independent Segment Decoding */ |
21e59552 | 431 | /* /Fx */ |
bf89e6b1 FB |
432 | /* codec capabilities */ |
433 | ||
f5bccd85 | 434 | #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback. |
6814a25c MN |
435 | /** |
436 | * Codec uses get_buffer() for allocating buffers. | |
437 | * direct rendering method 1 | |
438 | */ | |
439 | #define CODEC_CAP_DR1 0x0002 | |
f5bccd85 | 440 | /* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */ |
917e06c8 | 441 | #define CODEC_CAP_PARSE_ONLY 0x0004 |
d7425f59 | 442 | #define CODEC_CAP_TRUNCATED 0x0008 |
f5bccd85 | 443 | /* Codec can export data for HW decoding (XvMC). */ |
5e5c247a | 444 | #define CODEC_CAP_HWACCEL 0x0010 |
115329f1 | 445 | /** |
f5bccd85 DB |
446 | * Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data. |
447 | * If this is not set, the codec is guaranteed to never be fed with NULL data. | |
934982c4 | 448 | */ |
6f824977 | 449 | #define CODEC_CAP_DELAY 0x0020 |
cef7cc72 JR |
450 | /** |
451 | * Codec can be fed a final frame with a smaller size. | |
452 | * This can be used to prevent truncation of the last audio samples. | |
453 | */ | |
454 | #define CODEC_CAP_SMALL_LAST_FRAME 0x0040 | |
bf89e6b1 | 455 | |
f5bccd85 | 456 | //The following defines may change, don't expect compatibility if you use them. |
8d7ec294 | 457 | #define MB_TYPE_INTRA4x4 0x0001 |
f5bccd85 DB |
458 | #define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific |
459 | #define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific | |
8d7ec294 WH |
460 | #define MB_TYPE_16x16 0x0008 |
461 | #define MB_TYPE_16x8 0x0010 | |
462 | #define MB_TYPE_8x16 0x0020 | |
463 | #define MB_TYPE_8x8 0x0040 | |
464 | #define MB_TYPE_INTERLACED 0x0080 | |
273b0cd3 | 465 | #define MB_TYPE_DIRECT2 0x0100 //FIXME |
8d7ec294 WH |
466 | #define MB_TYPE_ACPRED 0x0200 |
467 | #define MB_TYPE_GMC 0x0400 | |
468 | #define MB_TYPE_SKIP 0x0800 | |
469 | #define MB_TYPE_P0L0 0x1000 | |
470 | #define MB_TYPE_P1L0 0x2000 | |
471 | #define MB_TYPE_P0L1 0x4000 | |
472 | #define MB_TYPE_P1L1 0x8000 | |
473 | #define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0) | |
474 | #define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1) | |
475 | #define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1) | |
476 | #define MB_TYPE_QUANT 0x00010000 | |
477 | #define MB_TYPE_CBP 0x00020000 | |
478 | //Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...) | |
479 | ||
fa384dcc MN |
480 | /** |
481 | * Pan Scan area. | |
f5bccd85 DB |
482 | * This specifies the area which should be displayed. |
483 | * Note there may be multiple such areas for one frame. | |
fa384dcc MN |
484 | */ |
485 | typedef struct AVPanScan{ | |
486 | /** | |
f5bccd85 DB |
487 | * id |
488 | * - encoding: Set by user. | |
489 | * - decoding: Set by libavcodec. | |
fa384dcc MN |
490 | */ |
491 | int id; | |
492 | ||
493 | /** | |
494 | * width and height in 1/16 pel | |
f5bccd85 DB |
495 | * - encoding: Set by user. |
496 | * - decoding: Set by libavcodec. | |
fa384dcc MN |
497 | */ |
498 | int width; | |
499 | int height; | |
500 | ||
501 | /** | |
f5bccd85 DB |
502 | * position of the top left corner in 1/16 pel for up to 3 fields/frames |
503 | * - encoding: Set by user. | |
504 | * - decoding: Set by libavcodec. | |
fa384dcc MN |
505 | */ |
506 | int16_t position[3][2]; | |
507 | }AVPanScan; | |
508 | ||
492cd3a9 | 509 | #define FF_COMMON_FRAME \ |
b536d0aa MN |
510 | /**\ |
511 | * pointer to the picture planes.\ | |
f5bccd85 | 512 | * This might be different from the first allocated byte\ |
b536d0aa MN |
513 | * - encoding: \ |
514 | * - decoding: \ | |
515 | */\ | |
1e491e29 MN |
516 | uint8_t *data[4];\ |
517 | int linesize[4];\ | |
518 | /**\ | |
f5bccd85 DB |
519 | * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.\ |
520 | * This isn't used by libavcodec unless the default get/release_buffer() is used.\ | |
64863965 MN |
521 | * - encoding: \ |
522 | * - decoding: \ | |
1e491e29 MN |
523 | */\ |
524 | uint8_t *base[4];\ | |
525 | /**\ | |
526 | * 1 -> keyframe, 0-> not\ | |
f5bccd85 DB |
527 | * - encoding: Set by libavcodec.\ |
528 | * - decoding: Set by libavcodec.\ | |
1e491e29 MN |
529 | */\ |
530 | int key_frame;\ | |
531 | \ | |
532 | /**\ | |
f5bccd85 DB |
533 | * Picture type of the frame, see ?_TYPE below.\ |
534 | * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\ | |
535 | * - decoding: Set by libavcodec.\ | |
1e491e29 MN |
536 | */\ |
537 | int pict_type;\ | |
538 | \ | |
539 | /**\ | |
c0df9d75 | 540 | * presentation timestamp in time_base units (time when frame should be shown to user)\ |
f5bccd85 DB |
541 | * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.\ |
542 | * - encoding: MUST be set by user.\ | |
543 | * - decoding: Set by libavcodec.\ | |
1e491e29 | 544 | */\ |
be6784dc | 545 | int64_t pts;\ |
1e491e29 MN |
546 | \ |
547 | /**\ | |
f5bccd85 | 548 | * picture number in bitstream order\ |
64863965 | 549 | * - encoding: set by\ |
f5bccd85 | 550 | * - decoding: Set by libavcodec.\ |
1e491e29 MN |
551 | */\ |
552 | int coded_picture_number;\ | |
553 | /**\ | |
f5bccd85 | 554 | * picture number in display order\ |
64863965 | 555 | * - encoding: set by\ |
f5bccd85 | 556 | * - decoding: Set by libavcodec.\ |
1e491e29 MN |
557 | */\ |
558 | int display_picture_number;\ | |
559 | \ | |
560 | /**\ | |
158c7f05 | 561 | * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \ |
f5bccd85 DB |
562 | * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\ |
563 | * - decoding: Set by libavcodec.\ | |
1e491e29 | 564 | */\ |
158c7f05 | 565 | int quality; \ |
1e491e29 MN |
566 | \ |
567 | /**\ | |
568 | * buffer age (1->was last buffer and dint change, 2->..., ...).\ | |
f5bccd85 | 569 | * Set to INT_MAX if the buffer has not been used yet.\ |
64863965 | 570 | * - encoding: unused\ |
f5bccd85 | 571 | * - decoding: MUST be set by get_buffer().\ |
1e491e29 MN |
572 | */\ |
573 | int age;\ | |
574 | \ | |
575 | /**\ | |
576 | * is this picture used as reference\ | |
64863965 | 577 | * - encoding: unused\ |
f5bccd85 | 578 | * - decoding: Set by libavcodec. (before get_buffer() call)).\ |
1e491e29 MN |
579 | */\ |
580 | int reference;\ | |
581 | \ | |
582 | /**\ | |
583 | * QP table\ | |
64863965 | 584 | * - encoding: unused\ |
f5bccd85 | 585 | * - decoding: Set by libavcodec.\ |
1e491e29 MN |
586 | */\ |
587 | int8_t *qscale_table;\ | |
588 | /**\ | |
589 | * QP store stride\ | |
64863965 | 590 | * - encoding: unused\ |
f5bccd85 | 591 | * - decoding: Set by libavcodec.\ |
1e491e29 MN |
592 | */\ |
593 | int qstride;\ | |
594 | \ | |
595 | /**\ | |
f5bccd85 | 596 | * mbskip_table[mb]>=1 if MB didn't change\ |
1e491e29 | 597 | * stride= mb_width = (width+15)>>4\ |
64863965 | 598 | * - encoding: unused\ |
f5bccd85 | 599 | * - decoding: Set by libavcodec.\ |
1e491e29 MN |
600 | */\ |
601 | uint8_t *mbskip_table;\ | |
602 | \ | |
603 | /**\ | |
f5bccd85 | 604 | * motion vector table\ |
61436073 MN |
605 | * @code\ |
606 | * example:\ | |
607 | * int mv_sample_log2= 4 - motion_subsample_log2;\ | |
608 | * int mb_width= (width+15)>>4;\ | |
609 | * int mv_stride= (mb_width << mv_sample_log2) + 1;\ | |
610 | * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\ | |
611 | * @endcode\ | |
f5bccd85 DB |
612 | * - encoding: Set by user.\ |
613 | * - decoding: Set by libavcodec.\ | |
8d7ec294 WH |
614 | */\ |
615 | int16_t (*motion_val[2])[2];\ | |
616 | \ | |
617 | /**\ | |
f5bccd85 | 618 | * macroblock type table\ |
8d7ec294 | 619 | * mb_type_base + mb_width + 2\ |
f5bccd85 DB |
620 | * - encoding: Set by user.\ |
621 | * - decoding: Set by libavcodec.\ | |
8d7ec294 WH |
622 | */\ |
623 | uint32_t *mb_type;\ | |
624 | \ | |
625 | /**\ | |
f0b77c69 MN |
626 | * log2 of the size of the block which a single vector in motion_val represents: \ |
627 | * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\ | |
8d7ec294 | 628 | * - encoding: unused\ |
f5bccd85 | 629 | * - decoding: Set by libavcodec.\ |
8d7ec294 WH |
630 | */\ |
631 | uint8_t motion_subsample_log2;\ | |
632 | \ | |
633 | /**\ | |
1e491e29 | 634 | * for some private data of the user\ |
64863965 | 635 | * - encoding: unused\ |
f5bccd85 | 636 | * - decoding: Set by user.\ |
1e491e29 MN |
637 | */\ |
638 | void *opaque;\ | |
140cb663 MN |
639 | \ |
640 | /**\ | |
641 | * error\ | |
f5bccd85 | 642 | * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.\ |
64863965 | 643 | * - decoding: unused\ |
140cb663 MN |
644 | */\ |
645 | uint64_t error[4];\ | |
4e00e76b MN |
646 | \ |
647 | /**\ | |
f5bccd85 DB |
648 | * type of the buffer (to keep track of who has to deallocate data[*])\ |
649 | * - encoding: Set by the one who allocates it.\ | |
650 | * - decoding: Set by the one who allocates it.\ | |
651 | * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.\ | |
4e00e76b MN |
652 | */\ |
653 | int type;\ | |
2ec23b6d MN |
654 | \ |
655 | /**\ | |
f5bccd85 | 656 | * When decoding, this signals how much the picture must be delayed.\ |
2ec23b6d | 657 | * extra_delay = repeat_pict / (2*fps)\ |
64863965 | 658 | * - encoding: unused\ |
f5bccd85 | 659 | * - decoding: Set by libavcodec.\ |
2ec23b6d | 660 | */\ |
0426af31 MN |
661 | int repeat_pict;\ |
662 | \ | |
663 | /**\ | |
664 | * \ | |
665 | */\ | |
666 | int qscale_type;\ | |
2744ca9a RS |
667 | \ |
668 | /**\ | |
669 | * The content of the picture is interlaced.\ | |
f5bccd85 DB |
670 | * - encoding: Set by user.\ |
671 | * - decoding: Set by libavcodec. (default 0)\ | |
2744ca9a RS |
672 | */\ |
673 | int interlaced_frame;\ | |
674 | \ | |
675 | /**\ | |
f5bccd85 DB |
676 | * If the content is interlaced, is top field displayed first.\ |
677 | * - encoding: Set by user.\ | |
678 | * - decoding: Set by libavcodec.\ | |
2744ca9a | 679 | */\ |
9dad924e | 680 | int top_field_first;\ |
fa384dcc MN |
681 | \ |
682 | /**\ | |
683 | * Pan scan.\ | |
f5bccd85 DB |
684 | * - encoding: Set by user.\ |
685 | * - decoding: Set by libavcodec.\ | |
fa384dcc MN |
686 | */\ |
687 | AVPanScan *pan_scan;\ | |
2a2bbcb0 MM |
688 | \ |
689 | /**\ | |
f5bccd85 | 690 | * Tell user application that palette has changed from previous frame.\ |
2a2bbcb0 | 691 | * - encoding: ??? (no palette-enabled encoder yet)\ |
f5bccd85 | 692 | * - decoding: Set by libavcodec. (default 0).\ |
2a2bbcb0 MM |
693 | */\ |
694 | int palette_has_changed;\ | |
074c4ca7 RT |
695 | \ |
696 | /**\ | |
f5bccd85 | 697 | * codec suggestion on buffer type if != 0\ |
074c4ca7 | 698 | * - encoding: unused\ |
f5bccd85 | 699 | * - decoding: Set by libavcodec. (before get_buffer() call)).\ |
074c4ca7 RT |
700 | */\ |
701 | int buffer_hints;\ | |
8289c6fa WH |
702 | \ |
703 | /**\ | |
f5bccd85 | 704 | * DCT coefficients\ |
8289c6fa | 705 | * - encoding: unused\ |
f5bccd85 | 706 | * - decoding: Set by libavcodec.\ |
8289c6fa WH |
707 | */\ |
708 | short *dct_coeff;\ | |
a4d36c11 MN |
709 | \ |
710 | /**\ | |
f5bccd85 DB |
711 | * motion referece frame index\ |
712 | * - encoding: Set by user.\ | |
713 | * - decoding: Set by libavcodec.\ | |
a4d36c11 MN |
714 | */\ |
715 | int8_t *ref_index[2]; | |
2ec23b6d | 716 | |
bb270c08 DB |
717 | #define FF_QSCALE_TYPE_MPEG1 0 |
718 | #define FF_QSCALE_TYPE_MPEG2 1 | |
719 | #define FF_QSCALE_TYPE_H264 2 | |
4e00e76b MN |
720 | |
721 | #define FF_BUFFER_TYPE_INTERNAL 1 | |
f5bccd85 DB |
722 | #define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user) |
723 | #define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared. | |
724 | #define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything. | |
4e00e76b | 725 | |
1e491e29 | 726 | |
273b0cd3 DB |
727 | #define FF_I_TYPE 1 // Intra |
728 | #define FF_P_TYPE 2 // Predicted | |
729 | #define FF_B_TYPE 3 // Bi-dir predicted | |
730 | #define FF_S_TYPE 4 // S(GMC)-VOP MPEG4 | |
0da71265 MN |
731 | #define FF_SI_TYPE 5 |
732 | #define FF_SP_TYPE 6 | |
1e491e29 | 733 | |
f5bccd85 DB |
734 | #define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore). |
735 | #define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer. | |
736 | #define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content. | |
737 | #define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update). | |
074c4ca7 | 738 | |
0da71265 MN |
739 | /** |
740 | * Audio Video Frame. | |
741 | */ | |
492cd3a9 MN |
742 | typedef struct AVFrame { |
743 | FF_COMMON_FRAME | |
744 | } AVFrame; | |
1e491e29 | 745 | |
14bea432 | 746 | #define DEFAULT_FRAME_RATE_BASE 1001000 |
d33c949c MN |
747 | |
748 | /** | |
f5bccd85 | 749 | * main external API structure |
d33c949c | 750 | */ |
de6d9b64 | 751 | typedef struct AVCodecContext { |
b71901e6 | 752 | /** |
f5bccd85 | 753 | * information on struct for av_log |
bc874dae MB |
754 | * - set by avcodec_alloc_context |
755 | */ | |
43465395 | 756 | AVClass *av_class; |
bc874dae | 757 | /** |
f5bccd85 DB |
758 | * the average bitrate |
759 | * - encoding: Set by user; unused for constant quantizer encoding. | |
760 | * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream. | |
b71901e6 | 761 | */ |
de6d9b64 | 762 | int bit_rate; |
b71901e6 MN |
763 | |
764 | /** | |
64863965 | 765 | * number of bits the bitstream is allowed to diverge from the reference. |
b71901e6 | 766 | * the reference can be CBR (for CBR pass1) or VBR (for pass2) |
f5bccd85 | 767 | * - encoding: Set by user; unused for constant quantizer encoding. |
64863965 | 768 | * - decoding: unused |
b71901e6 | 769 | */ |
115329f1 | 770 | int bit_rate_tolerance; |
b71901e6 MN |
771 | |
772 | /** | |
64863965 | 773 | * CODEC_FLAG_*. |
f5bccd85 DB |
774 | * - encoding: Set by user. |
775 | * - decoding: Set by user. | |
b71901e6 | 776 | */ |
de6d9b64 | 777 | int flags; |
b71901e6 MN |
778 | |
779 | /** | |
f5bccd85 DB |
780 | * Some codecs need additional format info. It is stored here. |
781 | * If any muxer uses this then ALL demuxers/parsers AND encoders for the | |
782 | * specific codec MUST set it correctly otherwise stream copy breaks. | |
783 | * In general use of this field by muxers is not recommanded. | |
784 | * - encoding: Set by libavcodec. | |
785 | * - decoding: Set by libavcodec. (FIXME: Is this OK?) | |
b71901e6 MN |
786 | */ |
787 | int sub_id; | |
788 | ||
789 | /** | |
f5bccd85 | 790 | * Motion estimation algorithm used for video coding. |
58f7833e RS |
791 | * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex), |
792 | * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific] | |
64863965 MN |
793 | * - encoding: MUST be set by user. |
794 | * - decoding: unused | |
b71901e6 MN |
795 | */ |
796 | int me_method; | |
797 | ||
798 | /** | |
f5bccd85 DB |
799 | * some codecs need / can use extradata like Huffman tables. |
800 | * mjpeg: Huffman tables | |
b71901e6 | 801 | * rv10: additional flags |
b704e742 | 802 | * mpeg4: global headers (they can be in the bitstream or here) |
f5bccd85 DB |
803 | * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger |
804 | * than extradata_size to avoid prolems if it is read with the bitstream reader. | |
805 | * The bytewise contents of extradata must not depend on the architecture or CPU endianness. | |
806 | * - encoding: Set/allocated/freed by libavcodec. | |
807 | * - decoding: Set/allocated/freed by user. | |
b71901e6 | 808 | */ |
58f2a4b0 | 809 | uint8_t *extradata; |
e84c31dc | 810 | int extradata_size; |
115329f1 | 811 | |
b71901e6 | 812 | /** |
f5bccd85 DB |
813 | * This is the fundamental unit of time (in seconds) in terms |
814 | * of which frame timestamps are represented. For fixed-fps content, | |
5b28c8c3 MN |
815 | * timebase should be 1/framerate and timestamp increments should be |
816 | * identically 1. | |
f5bccd85 DB |
817 | * - encoding: MUST be set by user. |
818 | * - decoding: Set by libavcodec. | |
b71901e6 | 819 | */ |
c0df9d75 | 820 | AVRational time_base; |
115329f1 | 821 | |
5b28c8c3 | 822 | /* video only */ |
14bea432 | 823 | /** |
21adafec | 824 | * picture width / height. |
115329f1 | 825 | * - encoding: MUST be set by user. |
f5bccd85 DB |
826 | * - decoding: Set by libavcodec. |
827 | * Note: For compatibility it is possible to set this instead of | |
828 | * coded_width/height before decoding. | |
b71901e6 | 829 | */ |
de6d9b64 | 830 | int width, height; |
115329f1 | 831 | |
e769f053 | 832 | #define FF_ASPECT_EXTENDED 15 |
b71901e6 MN |
833 | |
834 | /** | |
f5bccd85 DB |
835 | * the number of pictures in a group of pictures, or 0 for intra_only |
836 | * - encoding: Set by user. | |
64863965 | 837 | * - decoding: unused |
b71901e6 MN |
838 | */ |
839 | int gop_size; | |
840 | ||
841 | /** | |
f5bccd85 DB |
842 | * Pixel format, see PIX_FMT_xxx. |
843 | * - encoding: Set by user. | |
844 | * - decoding: Set by libavcodec. | |
b71901e6 | 845 | */ |
e4eadb4b | 846 | enum PixelFormat pix_fmt; |
115329f1 | 847 | |
bdfcbbed | 848 | /** |
f5bccd85 | 849 | * Frame rate emulation. If not zero, the lower layer (i.e. format handler) |
bdfcbbed | 850 | * has to read frames at native frame rate. |
f5bccd85 DB |
851 | * - encoding: Set by user. |
852 | * - decoding: unused | |
bdfcbbed MK |
853 | */ |
854 | int rate_emu; | |
115329f1 | 855 | |
b71901e6 | 856 | /** |
f5bccd85 DB |
857 | * If non NULL, 'draw_horiz_band' is called by the libavcodec |
858 | * decoder to draw a horizontal band. It improves cache usage. Not | |
b71901e6 | 859 | * all codecs can do that. You must check the codec capabilities |
f5bccd85 | 860 | * beforehand. |
64863965 | 861 | * - encoding: unused |
f5bccd85 | 862 | * - decoding: Set by user. |
3bb07d61 MN |
863 | * @param height the height of the slice |
864 | * @param y the y position of the slice | |
865 | * @param type 1->top field, 2->bottom field, 3->frame | |
866 | * @param offset offset into the AVFrame.data from which the slice should be read | |
b71901e6 | 867 | */ |
bf89e6b1 | 868 | void (*draw_horiz_band)(struct AVCodecContext *s, |
da64ecc3 | 869 | const AVFrame *src, int offset[4], |
3bb07d61 | 870 | int y, int type, int height); |
bf89e6b1 | 871 | |
de6d9b64 | 872 | /* audio only */ |
f5bccd85 | 873 | int sample_rate; ///< samples per second |
de6d9b64 | 874 | int channels; |
a3a5f4d6 MN |
875 | |
876 | /** | |
f5bccd85 DB |
877 | * audio sample format |
878 | * - encoding: Set by user. | |
879 | * - decoding: Set by libavcodec. | |
a3a5f4d6 | 880 | */ |
f5bccd85 | 881 | enum SampleFormat sample_fmt; ///< sample format, currently unused |
de6d9b64 | 882 | |
f5bccd85 | 883 | /* The following data should not be initialized. */ |
718b27a7 | 884 | /** |
f5bccd85 | 885 | * Samples per packet, initialized when calling 'init'. |
718b27a7 MN |
886 | */ |
887 | int frame_size; | |
115329f1 | 888 | int frame_number; ///< audio or video frame number |
f5bccd85 | 889 | int real_pict_num; ///< Returns the real picture number of previous encoded frame. |
115329f1 | 890 | |
b71901e6 | 891 | /** |
f5bccd85 | 892 | * Number of frames the decoded output will be delayed relative to |
64863965 | 893 | * the encoded input. |
f5bccd85 | 894 | * - encoding: Set by libavcodec. |
64863965 | 895 | * - decoding: unused |
b71901e6 MN |
896 | */ |
897 | int delay; | |
115329f1 | 898 | |
64863965 MN |
899 | /* - encoding parameters */ |
900 | float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0) | |
115329f1 DB |
901 | float qblur; ///< amount of qscale smoothing over time (0.0-1.0) |
902 | ||
b71901e6 | 903 | /** |
f5bccd85 DB |
904 | * minimum quantizer |
905 | * - encoding: Set by user. | |
64863965 | 906 | * - decoding: unused |
b71901e6 MN |
907 | */ |
908 | int qmin; | |
909 | ||
910 | /** | |
f5bccd85 DB |
911 | * maximum quantizer |
912 | * - encoding: Set by user. | |
64863965 | 913 | * - decoding: unused |
b71901e6 MN |
914 | */ |
915 | int qmax; | |
916 | ||
917 | /** | |
f5bccd85 DB |
918 | * maximum quantizer difference between frames |
919 | * - encoding: Set by user. | |
64863965 | 920 | * - decoding: unused |
b71901e6 MN |
921 | */ |
922 | int max_qdiff; | |
923 | ||
924 | /** | |
f5bccd85 DB |
925 | * maximum number of B-frames between non-B-frames |
926 | * Note: The output will be delayed by max_b_frames+1 relative to the input. | |
927 | * - encoding: Set by user. | |
64863965 | 928 | * - decoding: unused |
b71901e6 MN |
929 | */ |
930 | int max_b_frames; | |
931 | ||
932 | /** | |
f5bccd85 DB |
933 | * qscale factor between IP and B-frames |
934 | * - encoding: Set by user. | |
64863965 | 935 | * - decoding: unused |
b71901e6 MN |
936 | */ |
937 | float b_quant_factor; | |
115329f1 | 938 | |
b71901e6 MN |
939 | /** obsolete FIXME remove */ |
940 | int rc_strategy; | |
64b7c5b6 MN |
941 | #define FF_RC_STRATEGY_XVID 1 |
942 | ||
8b4c7dbc | 943 | int b_frame_strategy; |
9dbcbd92 | 944 | |
b71901e6 | 945 | /** |
f5bccd85 | 946 | * hurry up amount |
64863965 | 947 | * - encoding: unused |
f5bccd85 | 948 | * - decoding: Set by user. 1-> Skip B-frames, 2-> Skip IDCT/dequant too, 5-> Skip everything except header |
f9ec0aa1 | 949 | * @deprecated Deprecated in favor of skip_idct and skip_frame. |
b71901e6 MN |
950 | */ |
951 | int hurry_up; | |
115329f1 | 952 | |
de6d9b64 | 953 | struct AVCodec *codec; |
115329f1 | 954 | |
de6d9b64 FB |
955 | void *priv_data; |
956 | ||
ccec0f4f | 957 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
ba58dabc MN |
958 | /* unused, FIXME remove*/ |
959 | int rtp_mode; | |
ccec0f4f | 960 | #endif |
115329f1 | 961 | |
bb628dae | 962 | int rtp_payload_size; /* The size of the RTP payload: the coder will */ |
f5bccd85 | 963 | /* do its best to deliver a chunk with size */ |
644d98a4 | 964 | /* below rtp_payload_size, the chunk will start */ |
f5bccd85 | 965 | /* with a start code on some codecs like H.263. */ |
644d98a4 | 966 | /* This doesn't take account of any particular */ |
f5bccd85 | 967 | /* headers inside the transmitted RTP payload. */ |
81401c1f | 968 | |
115329f1 | 969 | |
f5bccd85 DB |
970 | /* The RTP callback: This function is called */ |
971 | /* every time the encoder has a packet to send. */ | |
972 | /* It depends on the encoder if the data starts */ | |
973 | /* with a Start Code (it should). H.263 does. */ | |
974 | /* mb_nb contains the number of macroblocks */ | |
975 | /* encoded in the RTP payload. */ | |
115329f1 | 976 | void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); |
81401c1f | 977 | |
098eefe1 MN |
978 | /* statistics, used for 2-pass encoding */ |
979 | int mv_bits; | |
980 | int header_bits; | |
981 | int i_tex_bits; | |
982 | int p_tex_bits; | |
983 | int i_count; | |
984 | int p_count; | |
985 | int skip_count; | |
b71901e6 | 986 | int misc_bits; |
115329f1 | 987 | |
b71901e6 | 988 | /** |
f5bccd85 DB |
989 | * number of bits used for the previously encoded frame |
990 | * - encoding: Set by libavcodec. | |
7004ffb3 | 991 | * - decoding: unused |
b71901e6 | 992 | */ |
098eefe1 | 993 | int frame_bits; |
7004ffb3 | 994 | |
b71901e6 | 995 | /** |
f5bccd85 DB |
996 | * Private data of the user, can be used to carry app specific stuff. |
997 | * - encoding: Set by user. | |
998 | * - decoding: Set by user. | |
b71901e6 MN |
999 | */ |
1000 | void *opaque; | |
1001 | ||
de6d9b64 | 1002 | char codec_name[32]; |
4a663d80 PG |
1003 | enum CodecType codec_type; /* see CODEC_TYPE_xxx */ |
1004 | enum CodecID codec_id; /* see CODEC_ID_xxx */ | |
115329f1 | 1005 | |
7004ffb3 MN |
1006 | /** |
1007 | * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). | |
f5bccd85 DB |
1008 | * This is used to work around some encoder bugs. |
1009 | * A demuxer should set this to what is stored in the field used to identify the codec. | |
1010 | * If there are multiple such fields in a container then the demuxer should choose the one | |
1011 | * which maximizes the information about the used codec. | |
1012 | * If the codec tag field in a container is larger then 32 bits then the demuxer should | |
1013 | * remap the longer ID to 32 bits with a table or other structure. Alternatively a new | |
47bbf8a7 | 1014 | * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated |
f5bccd85 DB |
1015 | * first. |
1016 | * - encoding: Set by user, if not then the default based on codec_id will be used. | |
1017 | * - decoding: Set by user, will be converted to uppercase by libavcodec during init. | |
7004ffb3 MN |
1018 | */ |
1019 | unsigned int codec_tag; | |
115329f1 | 1020 | |
b71901e6 | 1021 | /** |
f5bccd85 DB |
1022 | * Work around bugs in encoders which sometimes cannot be detected automatically. |
1023 | * - encoding: Set by user | |
1024 | * - decoding: Set by user | |
b71901e6 MN |
1025 | */ |
1026 | int workaround_bugs; | |
64863965 | 1027 | #define FF_BUG_AUTODETECT 1 ///< autodetection |
4d2858de MN |
1028 | #define FF_BUG_OLD_MSMPEG4 2 |
1029 | #define FF_BUG_XVID_ILACE 4 | |
1030 | #define FF_BUG_UMP4 8 | |
1031 | #define FF_BUG_NO_PADDING 16 | |
3116cb14 | 1032 | #define FF_BUG_AMV 32 |
f5bccd85 | 1033 | #define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default. |
03e93d35 | 1034 | #define FF_BUG_QPEL_CHROMA 64 |
db794953 | 1035 | #define FF_BUG_STD_QPEL 128 |
36df8805 | 1036 | #define FF_BUG_QPEL_CHROMA2 256 |
c40c3482 | 1037 | #define FF_BUG_DIRECT_BLOCKSIZE 512 |
1c6dcb0f | 1038 | #define FF_BUG_EDGE 1024 |
b44bdf7e | 1039 | #define FF_BUG_HPEL_CHROMA 2048 |
4ccde216 | 1040 | #define FF_BUG_DC_CLIP 4096 |
f5bccd85 DB |
1041 | #define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders. |
1042 | //#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%. | |
115329f1 | 1043 | |
b71901e6 | 1044 | /** |
f5bccd85 DB |
1045 | * luma single coefficient elimination threshold |
1046 | * - encoding: Set by user. | |
64863965 | 1047 | * - decoding: unused |
b71901e6 | 1048 | */ |
1f6b6e50 | 1049 | int luma_elim_threshold; |
115329f1 | 1050 | |
b71901e6 | 1051 | /** |
f5bccd85 DB |
1052 | * chroma single coeff elimination threshold |
1053 | * - encoding: Set by user. | |
64863965 | 1054 | * - decoding: unused |
b71901e6 | 1055 | */ |
1f6b6e50 | 1056 | int chroma_elim_threshold; |
115329f1 | 1057 | |
b71901e6 | 1058 | /** |
f5bccd85 DB |
1059 | * strictly follow the standard (MPEG4, ...). |
1060 | * - encoding: Set by user. | |
64863965 | 1061 | * - decoding: unused |
b71901e6 MN |
1062 | */ |
1063 | int strict_std_compliance; | |
f5bccd85 DB |
1064 | #define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to a older more strict version of the spec or reference software. |
1065 | #define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences. | |
9cd81798 | 1066 | #define FF_COMPLIANCE_NORMAL 0 |
f5bccd85 DB |
1067 | #define FF_COMPLIANCE_INOFFICIAL -1 ///< Allow inofficial extensions. |
1068 | #define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things. | |
9cd81798 | 1069 | |
b71901e6 | 1070 | /** |
f5bccd85 DB |
1071 | * qscale offset between IP and B-frames |
1072 | * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset). | |
1073 | * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). | |
1074 | * - encoding: Set by user. | |
64863965 | 1075 | * - decoding: unused |
b71901e6 MN |
1076 | */ |
1077 | float b_quant_offset; | |
115329f1 | 1078 | |
b71901e6 | 1079 | /** |
f5bccd85 DB |
1080 | * Error resilience; higher values will detect more errors but may |
1081 | * misdetect some more or less valid parts as errors. | |
64863965 | 1082 | * - encoding: unused |
f5bccd85 | 1083 | * - decoding: Set by user. |
b71901e6 | 1084 | */ |
1f6b6e50 | 1085 | int error_resilience; |
1471c6c2 | 1086 | #define FF_ER_CAREFUL 1 |
ce3bcaed MN |
1087 | #define FF_ER_COMPLIANT 2 |
1088 | #define FF_ER_AGGRESSIVE 3 | |
1089 | #define FF_ER_VERY_AGGRESSIVE 4 | |
115329f1 | 1090 | |
6b72ac63 | 1091 | /** |
f5bccd85 DB |
1092 | * Called at the beginning of each frame to get a buffer for it. |
1093 | * If pic.reference is set then the frame will be read later by libavcodec. | |
2b5296d2 | 1094 | * avcodec_align_dimensions() should be used to find the required width and |
f5bccd85 | 1095 | * height, as they normally need to be rounded up to the next multiple of 16. |
64863965 | 1096 | * - encoding: unused |
f5bccd85 | 1097 | * - decoding: Set by libavcodec., user can override. |
b71901e6 | 1098 | */ |
492cd3a9 | 1099 | int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic); |
115329f1 | 1100 | |
b71901e6 | 1101 | /** |
f5bccd85 DB |
1102 | * Called to release buffers which where allocated with get_buffer. |
1103 | * A released buffer can be reused in get_buffer(). | |
1104 | * pic.data[*] must be set to NULL. | |
64863965 | 1105 | * - encoding: unused |
f5bccd85 | 1106 | * - decoding: Set by libavcodec., user can override. |
b71901e6 | 1107 | */ |
492cd3a9 | 1108 | void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic); |
0fd90455 | 1109 | |
b71901e6 | 1110 | /** |
f5bccd85 DB |
1111 | * If 1 the stream has a 1 frame delay during decoding. |
1112 | * - encoding: Set by libavcodec. | |
1113 | * - decoding: Set by libavcodec. | |
b71901e6 MN |
1114 | */ |
1115 | int has_b_frames; | |
718b27a7 MN |
1116 | |
1117 | /** | |
1118 | * number of bytes per packet if constant and known or 0 | |
f5bccd85 | 1119 | * Used by some WAV based audio codecs. |
718b27a7 MN |
1120 | */ |
1121 | int block_align; | |
115329f1 | 1122 | |
f5bccd85 | 1123 | int parse_only; /* - decoding only: If true, only parsing is done |
917e06c8 FB |
1124 | (function avcodec_parse_frame()). The frame |
1125 | data is returned. Only MPEG codecs support this now. */ | |
115329f1 | 1126 | |
b71901e6 | 1127 | /** |
f5bccd85 DB |
1128 | * 0-> h263 quant 1-> mpeg quant |
1129 | * - encoding: Set by user. | |
64863965 | 1130 | * - decoding: unused |
b71901e6 MN |
1131 | */ |
1132 | int mpeg_quant; | |
115329f1 | 1133 | |
b71901e6 | 1134 | /** |
f5bccd85 DB |
1135 | * pass1 encoding statistics output buffer |
1136 | * - encoding: Set by libavcodec. | |
64863965 | 1137 | * - decoding: unused |
b71901e6 | 1138 | */ |
64863965 | 1139 | char *stats_out; |
115329f1 | 1140 | |
b71901e6 | 1141 | /** |
f5bccd85 DB |
1142 | * pass2 encoding statistics input buffer |
1143 | * Concatenated stuff from stats_out of pass1 should be placed here. | |
1144 | * - encoding: Allocated/set/freed by user. | |
64863965 | 1145 | * - decoding: unused |
b71901e6 MN |
1146 | */ |
1147 | char *stats_in; | |
115329f1 | 1148 | |
b71901e6 | 1149 | /** |
f5bccd85 DB |
1150 | * ratecontrol qmin qmax limiting method |
1151 | * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax. | |
1152 | * - encoding: Set by user. | |
64863965 | 1153 | * - decoding: unused |
b71901e6 | 1154 | */ |
ce980a95 | 1155 | float rc_qsquish; |
b71901e6 | 1156 | |
ce980a95 MN |
1157 | float rc_qmod_amp; |
1158 | int rc_qmod_freq; | |
115329f1 | 1159 | |
b71901e6 | 1160 | /** |
f5bccd85 DB |
1161 | * ratecontrol override, see RcOverride |
1162 | * - encoding: Allocated/set/freed by user. | |
64863965 | 1163 | * - decoding: unused |
b71901e6 | 1164 | */ |
ce980a95 MN |
1165 | RcOverride *rc_override; |
1166 | int rc_override_count; | |
115329f1 | 1167 | |
b71901e6 | 1168 | /** |
f5bccd85 DB |
1169 | * rate control equation |
1170 | * - encoding: Set by user | |
64863965 | 1171 | * - decoding: unused |
b71901e6 | 1172 | */ |
ce980a95 | 1173 | char *rc_eq; |
115329f1 | 1174 | |
b71901e6 | 1175 | /** |
f5bccd85 DB |
1176 | * maximum bitrate |
1177 | * - encoding: Set by user. | |
64863965 | 1178 | * - decoding: unused |
b71901e6 | 1179 | */ |
ce980a95 | 1180 | int rc_max_rate; |
115329f1 | 1181 | |
b71901e6 | 1182 | /** |
f5bccd85 DB |
1183 | * minimum bitrate |
1184 | * - encoding: Set by user. | |
64863965 | 1185 | * - decoding: unused |
b71901e6 | 1186 | */ |
ce980a95 | 1187 | int rc_min_rate; |
115329f1 | 1188 | |
b71901e6 | 1189 | /** |
f5bccd85 DB |
1190 | * decoder bitstream buffer size |
1191 | * - encoding: Set by user. | |
64863965 | 1192 | * - decoding: unused |
b71901e6 | 1193 | */ |
ce980a95 MN |
1194 | int rc_buffer_size; |
1195 | float rc_buffer_aggressivity; | |
b71901e6 MN |
1196 | |
1197 | /** | |
f5bccd85 DB |
1198 | * qscale factor between P and I-frames |
1199 | * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset). | |
1200 | * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). | |
1201 | * - encoding: Set by user. | |
64863965 | 1202 | * - decoding: unused |
b71901e6 MN |
1203 | */ |
1204 | float i_quant_factor; | |
115329f1 | 1205 | |
b71901e6 | 1206 | /** |
f5bccd85 DB |
1207 | * qscale offset between P and I-frames |
1208 | * - encoding: Set by user. | |
64863965 | 1209 | * - decoding: unused |
b71901e6 MN |
1210 | */ |
1211 | float i_quant_offset; | |
115329f1 | 1212 | |
b71901e6 | 1213 | /** |
f5bccd85 DB |
1214 | * initial complexity for pass1 ratecontrol |
1215 | * - encoding: Set by user. | |
64863965 | 1216 | * - decoding: unused |
b71901e6 | 1217 | */ |
ce980a95 | 1218 | float rc_initial_cplx; |
917e06c8 | 1219 | |
b71901e6 | 1220 | /** |
f5bccd85 DB |
1221 | * DCT algorithm, see FF_DCT_* below |
1222 | * - encoding: Set by user. | |
64863965 | 1223 | * - decoding: unused |
b71901e6 | 1224 | */ |
28db7fce | 1225 | int dct_algo; |
c7e07931 | 1226 | #define FF_DCT_AUTO 0 |
28db7fce | 1227 | #define FF_DCT_FASTINT 1 |
c7e07931 MO |
1228 | #define FF_DCT_INT 2 |
1229 | #define FF_DCT_MMX 3 | |
1230 | #define FF_DCT_MLIB 4 | |
05c4072b | 1231 | #define FF_DCT_ALTIVEC 5 |
65e4c8c9 | 1232 | #define FF_DCT_FAAN 6 |
115329f1 | 1233 | |
c5d309f2 | 1234 | /** |
f5bccd85 DB |
1235 | * luminance masking (0-> disabled) |
1236 | * - encoding: Set by user. | |
64863965 | 1237 | * - decoding: unused |
c5d309f2 MN |
1238 | */ |
1239 | float lumi_masking; | |
115329f1 | 1240 | |
c5d309f2 | 1241 | /** |
f5bccd85 DB |
1242 | * temporary complexity masking (0-> disabled) |
1243 | * - encoding: Set by user. | |
64863965 | 1244 | * - decoding: unused |
c5d309f2 MN |
1245 | */ |
1246 | float temporal_cplx_masking; | |
115329f1 | 1247 | |
c5d309f2 | 1248 | /** |
f5bccd85 DB |
1249 | * spatial complexity masking (0-> disabled) |
1250 | * - encoding: Set by user. | |
64863965 | 1251 | * - decoding: unused |
c5d309f2 MN |
1252 | */ |
1253 | float spatial_cplx_masking; | |
115329f1 | 1254 | |
c5d309f2 | 1255 | /** |
f5bccd85 DB |
1256 | * p block masking (0-> disabled) |
1257 | * - encoding: Set by user. | |
64863965 | 1258 | * - decoding: unused |
c5d309f2 MN |
1259 | */ |
1260 | float p_masking; | |
15415af4 | 1261 | |
5e746b99 | 1262 | /** |
f5bccd85 DB |
1263 | * darkness masking (0-> disabled) |
1264 | * - encoding: Set by user. | |
64863965 | 1265 | * - decoding: unused |
5e746b99 MN |
1266 | */ |
1267 | float dark_masking; | |
115329f1 DB |
1268 | |
1269 | ||
3a694b04 NK |
1270 | /* for binary compatibility */ |
1271 | int unused; | |
115329f1 | 1272 | |
0c2dd16e | 1273 | /** |
f5bccd85 DB |
1274 | * IDCT algorithm, see FF_IDCT_* below. |
1275 | * - encoding: Set by user. | |
1276 | * - decoding: Set by user. | |
2ad1516a MN |
1277 | */ |
1278 | int idct_algo; | |
273b0cd3 DB |
1279 | #define FF_IDCT_AUTO 0 |
1280 | #define FF_IDCT_INT 1 | |
1281 | #define FF_IDCT_SIMPLE 2 | |
1282 | #define FF_IDCT_SIMPLEMMX 3 | |
1283 | #define FF_IDCT_LIBMPEG2MMX 4 | |
1284 | #define FF_IDCT_PS2 5 | |
1285 | #define FF_IDCT_MLIB 6 | |
1286 | #define FF_IDCT_ARM 7 | |
1287 | #define FF_IDCT_ALTIVEC 8 | |
1288 | #define FF_IDCT_SH4 9 | |
1289 | #define FF_IDCT_SIMPLEARM 10 | |
1290 | #define FF_IDCT_H264 11 | |
1291 | #define FF_IDCT_VP3 12 | |
1292 | #define FF_IDCT_IPP 13 | |
1293 | #define FF_IDCT_XVIDMMX 14 | |
1294 | #define FF_IDCT_CAVS 15 | |
a0403006 | 1295 | #define FF_IDCT_SIMPLEARMV5TE 16 |
273b0cd3 | 1296 | #define FF_IDCT_SIMPLEARMV6 17 |
d9420d4d | 1297 | #define FF_IDCT_SIMPLEVIS 18 |
9abc7e0f | 1298 | #define FF_IDCT_WMV2 19 |
2ad1516a | 1299 | |
144f0625 | 1300 | /** |
f5bccd85 DB |
1301 | * slice count |
1302 | * - encoding: Set by libavcodec. | |
1303 | * - decoding: Set by user (or 0). | |
144f0625 MN |
1304 | */ |
1305 | int slice_count; | |
1306 | /** | |
f5bccd85 DB |
1307 | * slice offsets in the frame in bytes |
1308 | * - encoding: Set/allocated by libavcodec. | |
1309 | * - decoding: Set/allocated by user (or NULL). | |
144f0625 MN |
1310 | */ |
1311 | int *slice_offset; | |
1312 | ||
4d2858de | 1313 | /** |
f5bccd85 | 1314 | * error concealment flags |
64863965 | 1315 | * - encoding: unused |
f5bccd85 | 1316 | * - decoding: Set by user. |
4d2858de MN |
1317 | */ |
1318 | int error_concealment; | |
1319 | #define FF_EC_GUESS_MVS 1 | |
1320 | #define FF_EC_DEBLOCK 2 | |
1321 | ||
6b72ac63 | 1322 | /** |
bec89a84 | 1323 | * dsp_mask could be add used to disable unwanted CPU features |
8350df97 | 1324 | * CPU features (i.e. MMX, SSE. ...) |
bec89a84 | 1325 | * |
f5bccd85 DB |
1326 | * With the FORCE flag you may instead enable given CPU features. |
1327 | * (Dangerous: Usable in case of misdetection, improper usage however will | |
1328 | * result into program crash.) | |
bec89a84 ZK |
1329 | */ |
1330 | unsigned dsp_mask; | |
f5bccd85 | 1331 | #define FF_MM_FORCE 0x80000000 /* Force usage of selected flags (OR) */ |
bec89a84 | 1332 | /* lower 16 bits - CPU features */ |
bb270c08 DB |
1333 | #define FF_MM_MMX 0x0001 /* standard MMX */ |
1334 | #define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */ | |
1335 | #define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */ | |
1336 | #define FF_MM_SSE 0x0008 /* SSE functions */ | |
1337 | #define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */ | |
1338 | #define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */ | |
ac237a2f RB |
1339 | #define FF_MM_SSE3 0x0040 /* Prescott SSE3 functions */ |
1340 | #define FF_MM_SSSE3 0x0080 /* Conroe SSSE3 functions */ | |
bb270c08 | 1341 | #define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */ |
11f18faf MN |
1342 | |
1343 | /** | |
64863965 | 1344 | * bits per sample/pixel from the demuxer (needed for huffyuv). |
f5bccd85 DB |
1345 | * - encoding: Set by libavcodec. |
1346 | * - decoding: Set by user. | |
11f18faf MN |
1347 | */ |
1348 | int bits_per_sample; | |
115329f1 | 1349 | |
11f18faf | 1350 | /** |
f5bccd85 DB |
1351 | * prediction method (needed for huffyuv) |
1352 | * - encoding: Set by user. | |
64863965 | 1353 | * - decoding: unused |
11f18faf MN |
1354 | */ |
1355 | int prediction_method; | |
1356 | #define FF_PRED_LEFT 0 | |
1357 | #define FF_PRED_PLANE 1 | |
1358 | #define FF_PRED_MEDIAN 2 | |
115329f1 | 1359 | |
5d3cea3a | 1360 | /** |
f5bccd85 DB |
1361 | * sample aspect ratio (0 if unknown) |
1362 | * Numerator and denominator must be relatively prime and smaller than 256 for some video standards. | |
1363 | * - encoding: Set by user. | |
1364 | * - decoding: Set by libavcodec. | |
5d3cea3a | 1365 | */ |
5ff85f1d | 1366 | AVRational sample_aspect_ratio; |
1e491e29 MN |
1367 | |
1368 | /** | |
f5bccd85 DB |
1369 | * the picture in the bitstream |
1370 | * - encoding: Set by libavcodec. | |
1371 | * - decoding: Set by libavcodec. | |
1e491e29 | 1372 | */ |
492cd3a9 | 1373 | AVFrame *coded_frame; |
c8c437bc MN |
1374 | |
1375 | /** | |
f5bccd85 DB |
1376 | * debug |
1377 | * - encoding: Set by user. | |
1378 | * - decoding: Set by user. | |
c8c437bc MN |
1379 | */ |
1380 | int debug; | |
273b0cd3 DB |
1381 | #define FF_DEBUG_PICT_INFO 1 |
1382 | #define FF_DEBUG_RC 2 | |
1383 | #define FF_DEBUG_BITSTREAM 4 | |
1384 | #define FF_DEBUG_MB_TYPE 8 | |
1385 | #define FF_DEBUG_QP 16 | |
1386 | #define FF_DEBUG_MV 32 | |
1387 | #define FF_DEBUG_DCT_COEFF 0x00000040 | |
1388 | #define FF_DEBUG_SKIP 0x00000080 | |
1389 | #define FF_DEBUG_STARTCODE 0x00000100 | |
1390 | #define FF_DEBUG_PTS 0x00000200 | |
1391 | #define FF_DEBUG_ER 0x00000400 | |
1392 | #define FF_DEBUG_MMCO 0x00000800 | |
1393 | #define FF_DEBUG_BUGS 0x00001000 | |
1394 | #define FF_DEBUG_VIS_QP 0x00002000 | |
864119b6 | 1395 | #define FF_DEBUG_VIS_MB_TYPE 0x00004000 |
115329f1 | 1396 | |
140cb663 | 1397 | /** |
f5bccd85 DB |
1398 | * debug |
1399 | * - encoding: Set by user. | |
1400 | * - decoding: Set by user. | |
0c9bbaec WH |
1401 | */ |
1402 | int debug_mv; | |
1403 | #define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames | |
1404 | #define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames | |
1405 | #define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames | |
1406 | ||
1407 | /** | |
f5bccd85 DB |
1408 | * error |
1409 | * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR. | |
64863965 | 1410 | * - decoding: unused |
140cb663 MN |
1411 | */ |
1412 | uint64_t error[4]; | |
115329f1 | 1413 | |
17a70fde | 1414 | /** |
f5bccd85 | 1415 | * minimum MB quantizer |
6e0d8c06 | 1416 | * - encoding: unused |
64863965 | 1417 | * - decoding: unused |
17a70fde MN |
1418 | */ |
1419 | int mb_qmin; | |
1420 | ||
1421 | /** | |
f5bccd85 | 1422 | * maximum MB quantizer |
6e0d8c06 | 1423 | * - encoding: unused |
64863965 | 1424 | * - decoding: unused |
17a70fde MN |
1425 | */ |
1426 | int mb_qmax; | |
115329f1 | 1427 | |
1457ab52 | 1428 | /** |
f5bccd85 DB |
1429 | * motion estimation comparison function |
1430 | * - encoding: Set by user. | |
64863965 | 1431 | * - decoding: unused |
1457ab52 MN |
1432 | */ |
1433 | int me_cmp; | |
1434 | /** | |
f5bccd85 DB |
1435 | * subpixel motion estimation comparison function |
1436 | * - encoding: Set by user. | |
64863965 | 1437 | * - decoding: unused |
1457ab52 MN |
1438 | */ |
1439 | int me_sub_cmp; | |
1440 | /** | |
f5bccd85 DB |
1441 | * macroblock comparison function (not supported yet) |
1442 | * - encoding: Set by user. | |
64863965 | 1443 | * - decoding: unused |
1457ab52 MN |
1444 | */ |
1445 | int mb_cmp; | |
622348f9 | 1446 | /** |
f5bccd85 DB |
1447 | * interlaced DCT comparison function |
1448 | * - encoding: Set by user. | |
622348f9 MN |
1449 | * - decoding: unused |
1450 | */ | |
1451 | int ildct_cmp; | |
273b0cd3 DB |
1452 | #define FF_CMP_SAD 0 |
1453 | #define FF_CMP_SSE 1 | |
1454 | #define FF_CMP_SATD 2 | |
1455 | #define FF_CMP_DCT 3 | |
1456 | #define FF_CMP_PSNR 4 | |
1457 | #define FF_CMP_BIT 5 | |
1458 | #define FF_CMP_RD 6 | |
1459 | #define FF_CMP_ZERO 7 | |
1460 | #define FF_CMP_VSAD 8 | |
1461 | #define FF_CMP_VSSE 9 | |
1462 | #define FF_CMP_NSSE 10 | |
1463 | #define FF_CMP_W53 11 | |
1464 | #define FF_CMP_W97 12 | |
0fd6aea1 | 1465 | #define FF_CMP_DCTMAX 13 |
27c61ac5 | 1466 | #define FF_CMP_DCT264 14 |
1457ab52 | 1467 | #define FF_CMP_CHROMA 256 |
115329f1 | 1468 | |
1457ab52 | 1469 | /** |
f5bccd85 DB |
1470 | * ME diamond size & shape |
1471 | * - encoding: Set by user. | |
64863965 | 1472 | * - decoding: unused |
1457ab52 MN |
1473 | */ |
1474 | int dia_size; | |
b07a5980 MN |
1475 | |
1476 | /** | |
f5bccd85 DB |
1477 | * amount of previous MV predictors (2a+1 x 2a+1 square) |
1478 | * - encoding: Set by user. | |
64863965 | 1479 | * - decoding: unused |
b07a5980 MN |
1480 | */ |
1481 | int last_predictor_count; | |
70ac76c0 | 1482 | |
f5fb6b34 | 1483 | /** |
f5bccd85 DB |
1484 | * prepass for motion estimation |
1485 | * - encoding: Set by user. | |
64863965 | 1486 | * - decoding: unused |
f5fb6b34 MN |
1487 | */ |
1488 | int pre_me; | |
b07a5980 | 1489 | |
70ac76c0 | 1490 | /** |
f5bccd85 DB |
1491 | * motion estimation prepass comparison function |
1492 | * - encoding: Set by user. | |
64863965 | 1493 | * - decoding: unused |
70ac76c0 MN |
1494 | */ |
1495 | int me_pre_cmp; | |
826f429a | 1496 | |
70ac76c0 | 1497 | /** |
f5bccd85 DB |
1498 | * ME prepass diamond size & shape |
1499 | * - encoding: Set by user. | |
64863965 | 1500 | * - decoding: unused |
70ac76c0 MN |
1501 | */ |
1502 | int pre_dia_size; | |
1503 | ||
826f429a | 1504 | /** |
f5bccd85 DB |
1505 | * subpel ME quality |
1506 | * - encoding: Set by user. | |
64863965 | 1507 | * - decoding: unused |
826f429a MN |
1508 | */ |
1509 | int me_subpel_quality; | |
1510 | ||
a33c7159 | 1511 | /** |
f5bccd85 | 1512 | * callback to negotiate the pixelFormat |
a33c7159 | 1513 | * @param fmt is the list of formats which are supported by the codec, |
f5bccd85 DB |
1514 | * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. |
1515 | * The first is always the native one. | |
1516 | * @return the chosen format | |
64863965 | 1517 | * - encoding: unused |
f5bccd85 | 1518 | * - decoding: Set by user, if not set the native format will be chosen. |
a33c7159 | 1519 | */ |
494c56d3 | 1520 | enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt); |
e2f9490e FB |
1521 | |
1522 | /** | |
f5bccd85 DB |
1523 | * DTG active format information (additional aspect ratio |
1524 | * information only used in DVB MPEG-2 transport streams) | |
1525 | * 0 if not set. | |
115329f1 | 1526 | * |
f5bccd85 DB |
1527 | * - encoding: unused |
1528 | * - decoding: Set by decoder. | |
e2f9490e FB |
1529 | */ |
1530 | int dtg_active_format; | |
1531 | #define FF_DTG_AFD_SAME 8 | |
1532 | #define FF_DTG_AFD_4_3 9 | |
1533 | #define FF_DTG_AFD_16_9 10 | |
1534 | #define FF_DTG_AFD_14_9 11 | |
1535 | #define FF_DTG_AFD_4_3_SP_14_9 13 | |
1536 | #define FF_DTG_AFD_16_9_SP_14_9 14 | |
1537 | #define FF_DTG_AFD_SP_4_3 15 | |
1538 | ||
ebbcdc9a | 1539 | /** |
f5bccd85 DB |
1540 | * maximum motion estimation search range in subpel units |
1541 | * If 0 then no limit. | |
115329f1 | 1542 | * |
f5bccd85 DB |
1543 | * - encoding: Set by user. |
1544 | * - decoding: unused | |
ebbcdc9a | 1545 | */ |
59e0ac8e | 1546 | int me_range; |
ebbcdc9a | 1547 | |
65f7062d | 1548 | /** |
f5bccd85 DB |
1549 | * intra quantizer bias |
1550 | * - encoding: Set by user. | |
1984f635 MN |
1551 | * - decoding: unused |
1552 | */ | |
1553 | int intra_quant_bias; | |
1554 | #define FF_DEFAULT_QUANT_BIAS 999999 | |
115329f1 | 1555 | |
1984f635 | 1556 | /** |
f5bccd85 DB |
1557 | * inter quantizer bias |
1558 | * - encoding: Set by user. | |
1984f635 MN |
1559 | * - decoding: unused |
1560 | */ | |
1561 | int inter_quant_bias; | |
5cd62665 ZK |
1562 | |
1563 | /** | |
f5bccd85 DB |
1564 | * color table ID |
1565 | * - encoding: unused | |
1566 | * - decoding: Which clrtable should be used for 8bit RGB images. | |
1567 | * Tables have to be stored somewhere. FIXME | |
5cd62665 ZK |
1568 | */ |
1569 | int color_table_id; | |
115329f1 | 1570 | |
d90cf87b | 1571 | /** |
f5bccd85 DB |
1572 | * internal_buffer count |
1573 | * Don't touch, used by libavcodec default_get_buffer(). | |
d90cf87b MN |
1574 | */ |
1575 | int internal_buffer_count; | |
115329f1 | 1576 | |
d90cf87b | 1577 | /** |
f5bccd85 DB |
1578 | * internal_buffers |
1579 | * Don't touch, used by libavcodec default_get_buffer(). | |
d90cf87b MN |
1580 | */ |
1581 | void *internal_buffer; | |
158c7f05 MN |
1582 | |
1583 | #define FF_LAMBDA_SHIFT 7 | |
1584 | #define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT) | |
1585 | #define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda | |
1586 | #define FF_LAMBDA_MAX (256*128-1) | |
1587 | ||
1588 | #define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove | |
3d2e8cce | 1589 | /** |
f5bccd85 DB |
1590 | * Global quality for codecs which cannot change it per frame. |
1591 | * This should be proportional to MPEG-1/2/4 qscale. | |
1592 | * - encoding: Set by user. | |
3d2e8cce MN |
1593 | * - decoding: unused |
1594 | */ | |
1595 | int global_quality; | |
115329f1 | 1596 | |
bd446bb1 MN |
1597 | #define FF_CODER_TYPE_VLC 0 |
1598 | #define FF_CODER_TYPE_AC 1 | |
f87459e4 KN |
1599 | #define FF_CODER_TYPE_RAW 2 |
1600 | #define FF_CODER_TYPE_RLE 3 | |
1601 | #define FF_CODER_TYPE_DEFLATE 4 | |
11e659c2 MN |
1602 | /** |
1603 | * coder type | |
f5bccd85 | 1604 | * - encoding: Set by user. |
11e659c2 MN |
1605 | * - decoding: unused |
1606 | */ | |
1607 | int coder_type; | |
1608 | ||
1609 | /** | |
1610 | * context model | |
f5bccd85 | 1611 | * - encoding: Set by user. |
11e659c2 MN |
1612 | * - decoding: unused |
1613 | */ | |
1614 | int context_model; | |
5639729b MN |
1615 | #if 0 |
1616 | /** | |
1617 | * | |
1618 | * - encoding: unused | |
f5bccd85 | 1619 | * - decoding: Set by user. |
5639729b MN |
1620 | */ |
1621 | uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size); | |
1622 | #endif | |
115329f1 | 1623 | |
3bb07d61 MN |
1624 | /** |
1625 | * slice flags | |
1626 | * - encoding: unused | |
f5bccd85 | 1627 | * - decoding: Set by user. |
3bb07d61 MN |
1628 | */ |
1629 | int slice_flags; | |
1630 | #define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display | |
1631 | #define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics) | |
1632 | #define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1) | |
1633 | ||
fb364ada IK |
1634 | /** |
1635 | * XVideo Motion Acceleration | |
1636 | * - encoding: forbidden | |
1637 | * - decoding: set by decoder | |
1638 | */ | |
1639 | int xvmc_acceleration; | |
115329f1 | 1640 | |
7d1c3fc1 MN |
1641 | /** |
1642 | * macroblock decision mode | |
f5bccd85 | 1643 | * - encoding: Set by user. |
7d1c3fc1 MN |
1644 | * - decoding: unused |
1645 | */ | |
1646 | int mb_decision; | |
1647 | #define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp | |
1648 | #define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits | |
1649 | #define FF_MB_DECISION_RD 2 ///< rate distoration | |
d6eb3c50 MN |
1650 | |
1651 | /** | |
1652 | * custom intra quantization matrix | |
f5bccd85 DB |
1653 | * - encoding: Set by user, can be NULL. |
1654 | * - decoding: Set by libavcodec. | |
d6eb3c50 MN |
1655 | */ |
1656 | uint16_t *intra_matrix; | |
1657 | ||
1658 | /** | |
1659 | * custom inter quantization matrix | |
f5bccd85 DB |
1660 | * - encoding: Set by user, can be NULL. |
1661 | * - decoding: Set by libavcodec. | |
d6eb3c50 MN |
1662 | */ |
1663 | uint16_t *inter_matrix; | |
115329f1 | 1664 | |
541ae140 MN |
1665 | /** |
1666 | * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). | |
f5bccd85 | 1667 | * This is used to work around some encoder bugs. |
541ae140 | 1668 | * - encoding: unused |
f5bccd85 | 1669 | * - decoding: Set by user, will be converted to uppercase by libavcodec during init. |
541ae140 MN |
1670 | */ |
1671 | unsigned int stream_codec_tag; | |
05fbd0a2 MN |
1672 | |
1673 | /** | |
f5bccd85 DB |
1674 | * scene change detection threshold |
1675 | * 0 is default, larger means fewer detected scene changes. | |
1676 | * - encoding: Set by user. | |
05fbd0a2 MN |
1677 | * - decoding: unused |
1678 | */ | |
1679 | int scenechange_threshold; | |
158c7f05 MN |
1680 | |
1681 | /** | |
f5bccd85 DB |
1682 | * minimum Lagrange multipler |
1683 | * - encoding: Set by user. | |
158c7f05 MN |
1684 | * - decoding: unused |
1685 | */ | |
1686 | int lmin; | |
1687 | ||
1688 | /** | |
f5bccd85 DB |
1689 | * maximum Lagrange multipler |
1690 | * - encoding: Set by user. | |
158c7f05 MN |
1691 | * - decoding: unused |
1692 | */ | |
1693 | int lmax; | |
2a2bbcb0 MM |
1694 | |
1695 | /** | |
f5bccd85 | 1696 | * palette control structure |
2a2bbcb0 | 1697 | * - encoding: ??? (no palette-enabled encoder yet) |
f5bccd85 | 1698 | * - decoding: Set by user. |
2a2bbcb0 MM |
1699 | */ |
1700 | struct AVPaletteControl *palctrl; | |
821cb11f MN |
1701 | |
1702 | /** | |
1703 | * noise reduction strength | |
f5bccd85 | 1704 | * - encoding: Set by user. |
821cb11f MN |
1705 | * - decoding: unused |
1706 | */ | |
1707 | int noise_reduction; | |
115329f1 | 1708 | |
074c4ca7 | 1709 | /** |
f5bccd85 DB |
1710 | * Called at the beginning of a frame to get cr buffer for it. |
1711 | * Buffer type (size, hints) must be the same. libavcodec won't check it. | |
1712 | * libavcodec will pass previous buffer in pic, function should return | |
e1c2a5a0 | 1713 | * same buffer or new buffer with old frame "painted" into it. |
f5bccd85 | 1714 | * If pic.data[0] == NULL must behave like get_buffer(). |
074c4ca7 | 1715 | * - encoding: unused |
f5bccd85 | 1716 | * - decoding: Set by libavcodec., user can override |
074c4ca7 | 1717 | */ |
e1c2a5a0 | 1718 | int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic); |
ba58dabc MN |
1719 | |
1720 | /** | |
f5bccd85 DB |
1721 | * Number of bits which should be loaded into the rc buffer before decoding starts. |
1722 | * - encoding: Set by user. | |
ba58dabc MN |
1723 | * - decoding: unused |
1724 | */ | |
1725 | int rc_initial_buffer_occupancy; | |
1726 | ||
1727 | /** | |
1728 | * | |
f5bccd85 | 1729 | * - encoding: Set by user. |
ba58dabc MN |
1730 | * - decoding: unused |
1731 | */ | |
1732 | int inter_threshold; | |
1733 | ||
1734 | /** | |
f5bccd85 DB |
1735 | * CODEC_FLAG2_* |
1736 | * - encoding: Set by user. | |
1737 | * - decoding: Set by user. | |
ba58dabc MN |
1738 | */ |
1739 | int flags2; | |
7ebfc0ea MN |
1740 | |
1741 | /** | |
f5bccd85 DB |
1742 | * Simulates errors in the bitstream to test error concealment. |
1743 | * - encoding: Set by user. | |
1744 | * - decoding: unused | |
7ebfc0ea MN |
1745 | */ |
1746 | int error_rate; | |
115329f1 | 1747 | |
a1e257b2 MN |
1748 | /** |
1749 | * MP3 antialias algorithm, see FF_AA_* below. | |
1750 | * - encoding: unused | |
f5bccd85 | 1751 | * - decoding: Set by user. |
a1e257b2 MN |
1752 | */ |
1753 | int antialias_algo; | |
1754 | #define FF_AA_AUTO 0 | |
1755 | #define FF_AA_FASTINT 1 //not implemented yet | |
1756 | #define FF_AA_INT 2 | |
1757 | #define FF_AA_FLOAT 3 | |
77ea0d4b | 1758 | /** |
f5bccd85 DB |
1759 | * quantizer noise shaping |
1760 | * - encoding: Set by user. | |
77ea0d4b MN |
1761 | * - decoding: unused |
1762 | */ | |
1763 | int quantizer_noise_shaping; | |
9c3d33d6 MN |
1764 | |
1765 | /** | |
f5bccd85 | 1766 | * thread count |
eafcac6a | 1767 | * is used to decide how many independent tasks should be passed to execute() |
f5bccd85 DB |
1768 | * - encoding: Set by user. |
1769 | * - decoding: Set by user. | |
9c3d33d6 MN |
1770 | */ |
1771 | int thread_count; | |
115329f1 | 1772 | |
9c3d33d6 | 1773 | /** |
f5bccd85 DB |
1774 | * The codec may call this to execute several independent things. |
1775 | * It will return only after finishing all tasks. | |
1776 | * The user may replace this with some multithreaded implementation, | |
1777 | * the default implementation will execute the parts serially. | |
399cec2f | 1778 | * @param count the number of things to execute |
f5bccd85 DB |
1779 | * - encoding: Set by libavcodec, user can override. |
1780 | * - decoding: Set by libavcodec, user can override. | |
9c3d33d6 MN |
1781 | */ |
1782 | int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count); | |
115329f1 | 1783 | |
9c3d33d6 | 1784 | /** |
f5bccd85 DB |
1785 | * thread opaque |
1786 | * Can be used by execute() to store some per AVCodecContext stuff. | |
9c3d33d6 MN |
1787 | * - encoding: set by execute() |
1788 | * - decoding: set by execute() | |
1789 | */ | |
1790 | void *thread_opaque; | |
a4d36c11 MN |
1791 | |
1792 | /** | |
f5bccd85 DB |
1793 | * Motion estimation threshold below which no motion estimation is |
1794 | * performed, but instead the user specified motion vectors are used. | |
115329f1 | 1795 | * |
f5bccd85 | 1796 | * - encoding: Set by user. |
f20f8a8b | 1797 | * - decoding: unused |
a4d36c11 | 1798 | */ |
2750b827 | 1799 | int me_threshold; |
f20f8a8b MN |
1800 | |
1801 | /** | |
f5bccd85 DB |
1802 | * Macroblock threshold below which the user specified macroblock types will be used. |
1803 | * - encoding: Set by user. | |
f20f8a8b MN |
1804 | * - decoding: unused |
1805 | */ | |
1806 | int mb_threshold; | |
bf266e19 MN |
1807 | |
1808 | /** | |
f5bccd85 DB |
1809 | * precision of the intra DC coefficient - 8 |
1810 | * - encoding: Set by user. | |
bf266e19 MN |
1811 | * - decoding: unused |
1812 | */ | |
1813 | int intra_dc_precision; | |
d4c5d2ad MN |
1814 | |
1815 | /** | |
f5bccd85 DB |
1816 | * noise vs. sse weight for the nsse comparsion function |
1817 | * - encoding: Set by user. | |
d4c5d2ad MN |
1818 | * - decoding: unused |
1819 | */ | |
1820 | int nsse_weight; | |
0dfd33c3 MN |
1821 | |
1822 | /** | |
f5bccd85 | 1823 | * Number of macroblock rows at the top which are skipped. |
0dfd33c3 | 1824 | * - encoding: unused |
f5bccd85 | 1825 | * - decoding: Set by user. |
0dfd33c3 MN |
1826 | */ |
1827 | int skip_top; | |
1828 | ||
1829 | /** | |
f5bccd85 | 1830 | * Number of macroblock rows at the bottom which are skipped. |
0dfd33c3 | 1831 | * - encoding: unused |
f5bccd85 | 1832 | * - decoding: Set by user. |
0dfd33c3 MN |
1833 | */ |
1834 | int skip_bottom; | |
baced9f5 MN |
1835 | |
1836 | /** | |
1837 | * profile | |
f5bccd85 DB |
1838 | * - encoding: Set by user. |
1839 | * - decoding: Set by libavcodec. | |
baced9f5 MN |
1840 | */ |
1841 | int profile; | |
1842 | #define FF_PROFILE_UNKNOWN -99 | |
4f2c36ac | 1843 | #define FF_PROFILE_AAC_MAIN 0 |
273b0cd3 DB |
1844 | #define FF_PROFILE_AAC_LOW 1 |
1845 | #define FF_PROFILE_AAC_SSR 2 | |
1846 | #define FF_PROFILE_AAC_LTP 3 | |
baced9f5 MN |
1847 | |
1848 | /** | |
1849 | * level | |
f5bccd85 DB |
1850 | * - encoding: Set by user. |
1851 | * - decoding: Set by libavcodec. | |
baced9f5 MN |
1852 | */ |
1853 | int level; | |
1854 | #define FF_LEVEL_UNKNOWN -99 | |
178fcca8 MN |
1855 | |
1856 | /** | |
f5bccd85 | 1857 | * low resolution decoding, 1-> 1/2 size, 2->1/4 size |
178fcca8 | 1858 | * - encoding: unused |
f5bccd85 | 1859 | * - decoding: Set by user. |
178fcca8 MN |
1860 | */ |
1861 | int lowres; | |
21adafec MN |
1862 | |
1863 | /** | |
f5bccd85 DB |
1864 | * Bitstream width / height, may be different from width/height if lowres |
1865 | * or other things are used. | |
21adafec | 1866 | * - encoding: unused |
f5bccd85 | 1867 | * - decoding: Set by user before init if known. Codec should override / dynamically change if needed. |
21adafec MN |
1868 | */ |
1869 | int coded_width, coded_height; | |
bbf18b21 MN |
1870 | |
1871 | /** | |
1872 | * frame skip threshold | |
f5bccd85 | 1873 | * - encoding: Set by user. |
bbf18b21 MN |
1874 | * - decoding: unused |
1875 | */ | |
1876 | int frame_skip_threshold; | |
1877 | ||
1878 | /** | |
1879 | * frame skip factor | |
f5bccd85 | 1880 | * - encoding: Set by user. |
bbf18b21 MN |
1881 | * - decoding: unused |
1882 | */ | |
1883 | int frame_skip_factor; | |
0fd6aea1 MN |
1884 | |
1885 | /** | |
1886 | * frame skip exponent | |
f5bccd85 | 1887 | * - encoding: Set by user. |
0fd6aea1 MN |
1888 | * - decoding: unused |
1889 | */ | |
1890 | int frame_skip_exp; | |
1891 | ||
1892 | /** | |
f5bccd85 DB |
1893 | * frame skip comparison function |
1894 | * - encoding: Set by user. | |
0fd6aea1 MN |
1895 | * - decoding: unused |
1896 | */ | |
1897 | int frame_skip_cmp; | |
957c743a CM |
1898 | |
1899 | /** | |
f5bccd85 | 1900 | * Border processing masking, raises the quantizer for mbs on the borders |
957c743a | 1901 | * of the picture. |
f5bccd85 | 1902 | * - encoding: Set by user. |
957c743a CM |
1903 | * - decoding: unused |
1904 | */ | |
1905 | float border_masking; | |
6e0d8c06 MN |
1906 | |
1907 | /** | |
f5bccd85 DB |
1908 | * minimum MB lagrange multipler |
1909 | * - encoding: Set by user. | |
6e0d8c06 MN |
1910 | * - decoding: unused |
1911 | */ | |
1912 | int mb_lmin; | |
1913 | ||
1914 | /** | |
f5bccd85 DB |
1915 | * maximum MB lagrange multipler |
1916 | * - encoding: Set by user. | |
6e0d8c06 MN |
1917 | * - decoding: unused |
1918 | */ | |
1919 | int mb_lmax; | |
09c3e44e MN |
1920 | |
1921 | /** | |
115329f1 | 1922 | * |
f5bccd85 | 1923 | * - encoding: Set by user. |
09c3e44e MN |
1924 | * - decoding: unused |
1925 | */ | |
1926 | int me_penalty_compensation; | |
8c3eba7c MN |
1927 | |
1928 | /** | |
115329f1 | 1929 | * |
8c3eba7c | 1930 | * - encoding: unused |
f5bccd85 | 1931 | * - decoding: Set by user. |
8c3eba7c MN |
1932 | */ |
1933 | enum AVDiscard skip_loop_filter; | |
1934 | ||
1935 | /** | |
115329f1 | 1936 | * |
8c3eba7c | 1937 | * - encoding: unused |
f5bccd85 | 1938 | * - decoding: Set by user. |
8c3eba7c MN |
1939 | */ |
1940 | enum AVDiscard skip_idct; | |
1941 | ||
1942 | /** | |
115329f1 | 1943 | * |
8c3eba7c | 1944 | * - encoding: unused |
f5bccd85 | 1945 | * - decoding: Set by user. |
8c3eba7c MN |
1946 | */ |
1947 | enum AVDiscard skip_frame; | |
316a2ec8 MN |
1948 | |
1949 | /** | |
1950 | * | |
f5bccd85 | 1951 | * - encoding: Set by user. |
316a2ec8 MN |
1952 | * - decoding: unused |
1953 | */ | |
1954 | int bidir_refine; | |
e8501c93 MN |
1955 | |
1956 | /** | |
1957 | * | |
f5bccd85 | 1958 | * - encoding: Set by user. |
e8501c93 MN |
1959 | * - decoding: unused |
1960 | */ | |
1961 | int brd_scale; | |
58f7833e RS |
1962 | |
1963 | /** | |
1964 | * constant rate factor - quality-based VBR - values ~correspond to qps | |
f5bccd85 | 1965 | * - encoding: Set by user. |
58f7833e RS |
1966 | * - decoding: unused |
1967 | */ | |
9f1c1c99 | 1968 | float crf; |
58f7833e RS |
1969 | |
1970 | /** | |
1971 | * constant quantization parameter rate control method | |
f5bccd85 | 1972 | * - encoding: Set by user. |
58f7833e RS |
1973 | * - decoding: unused |
1974 | */ | |
1975 | int cqp; | |
1976 | ||
1977 | /** | |
f5bccd85 DB |
1978 | * minimum GOP size |
1979 | * - encoding: Set by user. | |
58f7833e RS |
1980 | * - decoding: unused |
1981 | */ | |
1982 | int keyint_min; | |
1983 | ||
1984 | /** | |
1985 | * number of reference frames | |
f5bccd85 | 1986 | * - encoding: Set by user. |
58f7833e RS |
1987 | * - decoding: unused |
1988 | */ | |
1989 | int refs; | |
1990 | ||
1991 | /** | |
1992 | * chroma qp offset from luma | |
f5bccd85 | 1993 | * - encoding: Set by user. |
58f7833e RS |
1994 | * - decoding: unused |
1995 | */ | |
1996 | int chromaoffset; | |
1997 | ||
1998 | /** | |
f5bccd85 DB |
1999 | * Influences how often B-frames are used. |
2000 | * - encoding: Set by user. | |
58f7833e RS |
2001 | * - decoding: unused |
2002 | */ | |
2003 | int bframebias; | |
2004 | ||
2005 | /** | |
2006 | * trellis RD quantization | |
f5bccd85 | 2007 | * - encoding: Set by user. |
58f7833e RS |
2008 | * - decoding: unused |
2009 | */ | |
2010 | int trellis; | |
2011 | ||
2012 | /** | |
f5bccd85 DB |
2013 | * Reduce fluctuations in qp (before curve compression). |
2014 | * - encoding: Set by user. | |
58f7833e RS |
2015 | * - decoding: unused |
2016 | */ | |
2017 | float complexityblur; | |
2018 | ||
2019 | /** | |
2020 | * in-loop deblocking filter alphac0 parameter | |
2021 | * alpha is in the range -6...6 | |
f5bccd85 | 2022 | * - encoding: Set by user. |
58f7833e RS |
2023 | * - decoding: unused |
2024 | */ | |
2025 | int deblockalpha; | |
2026 | ||
2027 | /** | |
2028 | * in-loop deblocking filter beta parameter | |
2029 | * beta is in the range -6...6 | |
f5bccd85 | 2030 | * - encoding: Set by user. |
58f7833e RS |
2031 | * - decoding: unused |
2032 | */ | |
2033 | int deblockbeta; | |
2034 | ||
2035 | /** | |
2036 | * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4 | |
f5bccd85 | 2037 | * - encoding: Set by user. |
58f7833e RS |
2038 | * - decoding: unused |
2039 | */ | |
2040 | int partitions; | |
2041 | #define X264_PART_I4X4 0x001 /* Analyse i4x4 */ | |
2042 | #define X264_PART_I8X8 0x002 /* Analyse i8x8 (requires 8x8 transform) */ | |
2043 | #define X264_PART_P8X8 0x010 /* Analyse p16x8, p8x16 and p8x8 */ | |
2044 | #define X264_PART_P4X4 0x020 /* Analyse p8x4, p4x8, p4x4 */ | |
2045 | #define X264_PART_B8X8 0x100 /* Analyse b16x8, b8x16 and b8x8 */ | |
2046 | ||
2047 | /** | |
f5bccd85 DB |
2048 | * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal) |
2049 | * - encoding: Set by user. | |
58f7833e RS |
2050 | * - decoding: unused |
2051 | */ | |
2052 | int directpred; | |
4f59b684 | 2053 | |
14f0c8e2 | 2054 | /** |
f5bccd85 DB |
2055 | * Audio cutoff bandwidth (0 means "automatic"), currently used only by FAAC. |
2056 | * - encoding: Set by user. | |
14f0c8e2 LA |
2057 | * - decoding: unused |
2058 | */ | |
2059 | int cutoff; | |
39a64e30 CH |
2060 | |
2061 | /** | |
f5bccd85 DB |
2062 | * Multiplied by qscale for each frame and added to scene_change_score. |
2063 | * - encoding: Set by user. | |
39a64e30 CH |
2064 | * - decoding: unused |
2065 | */ | |
2066 | int scenechange_factor; | |
1dd509b1 MN |
2067 | |
2068 | /** | |
2069 | * | |
f5bccd85 DB |
2070 | * Note: Value depends upon the compare function used for fullpel ME. |
2071 | * - encoding: Set by user. | |
1dd509b1 MN |
2072 | * - decoding: unused |
2073 | */ | |
2074 | int mv0_threshold; | |
f9243d34 CH |
2075 | |
2076 | /** | |
f5bccd85 DB |
2077 | * Adjusts sensitivity of b_frame_strategy 1. |
2078 | * - encoding: Set by user. | |
f9243d34 CH |
2079 | * - decoding: unused |
2080 | */ | |
2081 | int b_sensitivity; | |
a403fc03 JR |
2082 | |
2083 | /** | |
f5bccd85 | 2084 | * - encoding: Set by user. |
a403fc03 JR |
2085 | * - decoding: unused |
2086 | */ | |
2087 | int compression_level; | |
2088 | #define FF_COMPRESSION_DEFAULT -1 | |
2089 | ||
2090 | /** | |
f5bccd85 DB |
2091 | * Sets whether to use LPC mode - used by FLAC encoder. |
2092 | * - encoding: Set by user. | |
2093 | * - decoding: unused | |
a403fc03 JR |
2094 | */ |
2095 | int use_lpc; | |
2096 | ||
2097 | /** | |
2098 | * LPC coefficient precision - used by FLAC encoder | |
f5bccd85 DB |
2099 | * - encoding: Set by user. |
2100 | * - decoding: unused | |
a403fc03 JR |
2101 | */ |
2102 | int lpc_coeff_precision; | |
2103 | ||
2104 | /** | |
f5bccd85 DB |
2105 | * - encoding: Set by user. |
2106 | * - decoding: unused | |
a403fc03 JR |
2107 | */ |
2108 | int min_prediction_order; | |
2109 | ||
2110 | /** | |
f5bccd85 DB |
2111 | * - encoding: Set by user. |
2112 | * - decoding: unused | |
a403fc03 JR |
2113 | */ |
2114 | int max_prediction_order; | |
2115 | ||
2116 | /** | |
2117 | * search method for selecting prediction order | |
f5bccd85 DB |
2118 | * - encoding: Set by user. |
2119 | * - decoding: unused | |
a403fc03 JR |
2120 | */ |
2121 | int prediction_order_method; | |
2122 | ||
2123 | /** | |
f5bccd85 DB |
2124 | * - encoding: Set by user. |
2125 | * - decoding: unused | |
a403fc03 JR |
2126 | */ |
2127 | int min_partition_order; | |
2128 | ||
2129 | /** | |
f5bccd85 DB |
2130 | * - encoding: Set by user. |
2131 | * - decoding: unused | |
a403fc03 JR |
2132 | */ |
2133 | int max_partition_order; | |
80d617f5 BC |
2134 | |
2135 | /** | |
2136 | * GOP timecode frame start number, in non drop frame format | |
f5bccd85 DB |
2137 | * - encoding: Set by user. |
2138 | * - decoding: unused | |
80d617f5 BC |
2139 | */ |
2140 | int64_t timecode_frame_start; | |
b1ec601f RD |
2141 | |
2142 | /** | |
2143 | * Decoder should decode to this many channels if it can (0 for default) | |
2144 | * - encoding: unused | |
2145 | * - decoding: Set by user. | |
2146 | */ | |
2147 | int request_channels; | |
de6d9b64 FB |
2148 | } AVCodecContext; |
2149 | ||
64863965 MN |
2150 | /** |
2151 | * AVCodec. | |
2152 | */ | |
de6d9b64 | 2153 | typedef struct AVCodec { |
6b0cdb6e NG |
2154 | /** |
2155 | * Name of the codec implementation. | |
2156 | * The name is globally unique among encoders and among decoders (but an | |
2157 | * encoder and a decoder can share the same name). | |
2158 | * This is the primary way to find a codec from the user perspective. | |
2159 | */ | |
18f77016 | 2160 | const char *name; |
5d234974 | 2161 | enum CodecType type; |
9297ddd3 | 2162 | enum CodecID id; |
de6d9b64 FB |
2163 | int priv_data_size; |
2164 | int (*init)(AVCodecContext *); | |
0c1a9eda | 2165 | int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data); |
de6d9b64 | 2166 | int (*close)(AVCodecContext *); |
0fd90455 | 2167 | int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, |
0c1a9eda | 2168 | uint8_t *buf, int buf_size); |
bf89e6b1 | 2169 | int capabilities; |
de6d9b64 | 2170 | struct AVCodec *next; |
7a06ff14 | 2171 | void (*flush)(AVCodecContext *); |
b0df362b | 2172 | const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0} |
fcee0164 | 2173 | const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1 |
de6d9b64 FB |
2174 | } AVCodec; |
2175 | ||
97d96aaa | 2176 | /** |
d7425f59 MN |
2177 | * four components are given, that's all. |
2178 | * the last component is alpha | |
2179 | */ | |
de6d9b64 | 2180 | typedef struct AVPicture { |
0c1a9eda | 2181 | uint8_t *data[4]; |
cd394651 | 2182 | int linesize[4]; ///< number of bytes per line |
de6d9b64 FB |
2183 | } AVPicture; |
2184 | ||
ba118447 MM |
2185 | /** |
2186 | * AVPaletteControl | |
2187 | * This structure defines a method for communicating palette changes | |
2188 | * between and demuxer and a decoder. | |
671adb17 MC |
2189 | * |
2190 | * @deprecated Use AVPacket to send palette changes instead. | |
2191 | * This is totally broken. | |
ba118447 | 2192 | */ |
2e99641b | 2193 | #define AVPALETTE_SIZE 1024 |
432d84c3 | 2194 | #define AVPALETTE_COUNT 256 |
ba118447 MM |
2195 | typedef struct AVPaletteControl { |
2196 | ||
f5bccd85 DB |
2197 | /* Demuxer sets this to 1 to indicate the palette has changed; |
2198 | * decoder resets to 0. */ | |
ba118447 MM |
2199 | int palette_changed; |
2200 | ||
2a2bbcb0 MM |
2201 | /* 4-byte ARGB palette entries, stored in native byte order; note that |
2202 | * the individual palette components should be on a 8-bit scale; if | |
f5bccd85 DB |
2203 | * the palette data comes from an IBM VGA native format, the component |
2204 | * data is probably 6 bits in size and needs to be scaled. */ | |
2e99641b | 2205 | unsigned int palette[AVPALETTE_COUNT]; |
ba118447 | 2206 | |
18239edf | 2207 | } AVPaletteControl attribute_deprecated; |
ba118447 | 2208 | |
c6ec28b1 | 2209 | typedef struct AVSubtitleRect { |
240c1657 FB |
2210 | uint16_t x; |
2211 | uint16_t y; | |
2212 | uint16_t w; | |
2213 | uint16_t h; | |
2214 | uint16_t nb_colors; | |
240c1657 FB |
2215 | int linesize; |
2216 | uint32_t *rgba_palette; | |
2217 | uint8_t *bitmap; | |
c6ec28b1 MN |
2218 | } AVSubtitleRect; |
2219 | ||
2220 | typedef struct AVSubtitle { | |
2221 | uint16_t format; /* 0 = graphics */ | |
2222 | uint32_t start_display_time; /* relative to packet pts, in ms */ | |
2223 | uint32_t end_display_time; /* relative to packet pts, in ms */ | |
2224 | uint32_t num_rects; | |
2225 | AVSubtitleRect *rects; | |
240c1657 FB |
2226 | } AVSubtitle; |
2227 | ||
240c1657 | 2228 | |
de6d9b64 FB |
2229 | /* resample.c */ |
2230 | ||
2231 | struct ReSampleContext; | |
aaaf1635 | 2232 | struct AVResampleContext; |
de6d9b64 FB |
2233 | |
2234 | typedef struct ReSampleContext ReSampleContext; | |
2235 | ||
115329f1 | 2236 | ReSampleContext *audio_resample_init(int output_channels, int input_channels, |
de6d9b64 FB |
2237 | int output_rate, int input_rate); |
2238 | int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples); | |
2239 | void audio_resample_close(ReSampleContext *s); | |
2240 | ||
6e225de2 | 2241 | struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff); |
aaaf1635 | 2242 | int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx); |
2d48eddd | 2243 | void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance); |
d88443ae | 2244 | void av_resample_close(struct AVResampleContext *c); |
aaaf1635 | 2245 | |
bc2ce35b | 2246 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
de6d9b64 FB |
2247 | /* YUV420 format is assumed ! */ |
2248 | ||
671adb17 MC |
2249 | /** |
2250 | * @deprecated Use the software scaler (swscale) instead. | |
2251 | */ | |
bc2ce35b | 2252 | typedef struct ImgReSampleContext ImgReSampleContext attribute_deprecated; |
de6d9b64 | 2253 | |
671adb17 MC |
2254 | /** |
2255 | * @deprecated Use the software scaler (swscale) instead. | |
2256 | */ | |
bc2ce35b | 2257 | attribute_deprecated ImgReSampleContext *img_resample_init(int output_width, int output_height, |
de6d9b64 | 2258 | int input_width, int input_height); |
ab6d194a | 2259 | |
671adb17 MC |
2260 | /** |
2261 | * @deprecated Use the software scaler (swscale) instead. | |
2262 | */ | |
bc2ce35b | 2263 | attribute_deprecated ImgReSampleContext *img_resample_full_init(int owidth, int oheight, |
ab6d194a MN |
2264 | int iwidth, int iheight, |
2265 | int topBand, int bottomBand, | |
1ff93ffc TK |
2266 | int leftBand, int rightBand, |
2267 | int padtop, int padbottom, | |
2268 | int padleft, int padright); | |
2269 | ||
671adb17 MC |
2270 | /** |
2271 | * @deprecated Use the software scaler (swscale) instead. | |
2272 | */ | |
4f13e733 | 2273 | attribute_deprecated void img_resample(struct ImgReSampleContext *s, |
da64ecc3 | 2274 | AVPicture *output, const AVPicture *input); |
de6d9b64 | 2275 | |
671adb17 MC |
2276 | /** |
2277 | * @deprecated Use the software scaler (swscale) instead. | |
2278 | */ | |
4f13e733 | 2279 | attribute_deprecated void img_resample_close(struct ImgReSampleContext *s); |
bc2ce35b MN |
2280 | |
2281 | #endif | |
de6d9b64 | 2282 | |
75917b88 DH |
2283 | /** |
2284 | * Allocate memory for a picture. Call avpicture_free to free it. | |
2285 | * | |
f5bccd85 DB |
2286 | * @param picture the picture to be filled in |
2287 | * @param pix_fmt the format of the picture | |
2288 | * @param width the width of the picture | |
2289 | * @param height the height of the picture | |
2290 | * @return zero if successful, a negative value if not | |
75917b88 DH |
2291 | */ |
2292 | int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height); | |
2293 | ||
8fc3d25c PI |
2294 | /** |
2295 | * Free a picture previously allocated by avpicture_alloc(). | |
2296 | * | |
f5bccd85 | 2297 | * @param picture the AVPicture to be freed |
8fc3d25c | 2298 | */ |
75917b88 DH |
2299 | void avpicture_free(AVPicture *picture); |
2300 | ||
392cf77a | 2301 | /** |
f5bccd85 | 2302 | * Fill in the AVPicture fields. |
392cf77a PI |
2303 | * The fields of the given AVPicture are filled in by using the 'ptr' address |
2304 | * which points to the image data buffer. Depending on the specified picture | |
2305 | * format, one or multiple image data pointers and line sizes will be set. | |
2306 | * If a planar format is specified, several pointers will be set pointing to | |
2307 | * the different picture planes and the line sizes of the different planes | |
2308 | * will be stored in the lines_sizes array. | |
2309 | * | |
f5bccd85 | 2310 | * @param picture AVPicture whose fields are to be filled in |
392cf77a | 2311 | * @param ptr Buffer which will contain or contains the actual image data |
f5bccd85 DB |
2312 | * @param pix_fmt The format in which the picture data is stored. |
2313 | * @param width the width of the image in pixels | |
2314 | * @param height the height of the image in pixels | |
2315 | * @return size of the image data in bytes | |
392cf77a | 2316 | */ |
0c1a9eda | 2317 | int avpicture_fill(AVPicture *picture, uint8_t *ptr, |
2d1a4094 | 2318 | int pix_fmt, int width, int height); |
da64ecc3 | 2319 | int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height, |
63167088 | 2320 | unsigned char *dest, int dest_size); |
392cf77a PI |
2321 | |
2322 | /** | |
2323 | * Calculate the size in bytes that a picture of the given width and height | |
2324 | * would occupy if stored in the given picture format. | |
2325 | * | |
f5bccd85 DB |
2326 | * @param pix_fmt the given picture format |
2327 | * @param width the width of the image | |
2328 | * @param height the height of the image | |
392cf77a PI |
2329 | * @return Image data size in bytes |
2330 | */ | |
219b06c6 | 2331 | int avpicture_get_size(int pix_fmt, int width, int height); |
dab64ebc FB |
2332 | void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift); |
2333 | const char *avcodec_get_pix_fmt_name(int pix_fmt); | |
21adafec | 2334 | void avcodec_set_dimensions(AVCodecContext *s, int width, int height); |
63167088 | 2335 | enum PixelFormat avcodec_get_pix_fmt(const char* name); |
d07730dd | 2336 | unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p); |
219b06c6 | 2337 | |
81299d42 PI |
2338 | #define FF_LOSS_RESOLUTION 0x0001 /**< loss due to resolution change */ |
2339 | #define FF_LOSS_DEPTH 0x0002 /**< loss due to color depth change */ | |
2340 | #define FF_LOSS_COLORSPACE 0x0004 /**< loss due to color space conversion */ | |
2341 | #define FF_LOSS_ALPHA 0x0008 /**< loss of alpha bits */ | |
2342 | #define FF_LOSS_COLORQUANT 0x0010 /**< loss due to color quantization */ | |
2343 | #define FF_LOSS_CHROMA 0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */ | |
fab21997 | 2344 | |
392cf77a | 2345 | /** |
81299d42 PI |
2346 | * Computes what kind of losses will occur when converting from one specific |
2347 | * pixel format to another. | |
2348 | * When converting from one pixel format to another, information loss may occur. | |
2349 | * For example, when converting from RGB24 to GRAY, the color information will | |
2350 | * be lost. Similarly, other losses occur when converting from some formats to | |
2351 | * other formats. These losses can involve loss of chroma, but also loss of | |
2352 | * resolution, loss of color depth, loss due to the color space conversion, loss | |
2353 | * of the alpha bits or loss due to color quantization. | |
f5bccd85 DB |
2354 | * avcodec_get_fix_fmt_loss() informs you about the various types of losses |
2355 | * which will occur when converting from one pixel format to another. | |
81299d42 | 2356 | * |
f5bccd85 DB |
2357 | * @param[in] dst_pix_fmt destination pixel format |
2358 | * @param[in] src_pix_fmt source pixel format | |
81299d42 PI |
2359 | * @param[in] has_alpha Whether the source pixel format alpha channel is used. |
2360 | * @return Combination of flags informing you what kind of losses will occur. | |
392cf77a | 2361 | */ |
fab21997 FB |
2362 | int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt, |
2363 | int has_alpha); | |
392cf77a PI |
2364 | |
2365 | /** | |
81299d42 PI |
2366 | * Finds the best pixel format to convert to given a certain source pixel |
2367 | * format. When converting from one pixel format to another, information loss | |
2368 | * may occur. For example, when converting from RGB24 to GRAY, the color | |
2369 | * information will be lost. Similarly, other losses occur when converting from | |
2370 | * some formats to other formats. avcodec_find_best_pix_fmt() searches which of | |
f5bccd85 DB |
2371 | * the given pixel formats should be used to suffer the least amount of loss. |
2372 | * The pixel formats from which it chooses one, are determined by the | |
81299d42 PI |
2373 | * \p pix_fmt_mask parameter. |
2374 | * | |
2375 | * @code | |
2376 | * src_pix_fmt = PIX_FMT_YUV420P; | |
2377 | * pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24); | |
2378 | * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss); | |
2379 | * @endcode | |
2380 | * | |
f5bccd85 DB |
2381 | * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from |
2382 | * @param[in] src_pix_fmt source pixel format | |
81299d42 PI |
2383 | * @param[in] has_alpha Whether the source pixel format alpha channel is used. |
2384 | * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur. | |
2385 | * @return The best pixel format to convert to or -1 if none was found. | |
392cf77a | 2386 | */ |
fab21997 FB |
2387 | int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt, |
2388 | int has_alpha, int *loss_ptr); | |
2389 | ||
c3b95b1d SS |
2390 | |
2391 | /** | |
2392 | * Print in buf the string corresponding to the pixel format with | |
2393 | * number pix_fmt, or an header if pix_fmt is negative. | |
2394 | * | |
9bd51b9a PI |
2395 | * @param[in] buf the buffer where to write the string |
2396 | * @param[in] buf_size the size of buf | |
2397 | * @param[in] pix_fmt the number of the pixel format to print the corresponding info string, or | |
c3b95b1d SS |
2398 | * a negative value to print the corresponding header. |
2399 | * Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1. | |
2400 | */ | |
2401 | void avcodec_pix_fmt_string (char *buf, int buf_size, int pix_fmt); | |
2402 | ||
0469baf1 FB |
2403 | #define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */ |
2404 | #define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */ | |
392cf77a PI |
2405 | |
2406 | /** | |
2407 | * Tell if an image really has transparent alpha values. | |
2408 | * @return ored mask of FF_ALPHA_xxx constants | |
2409 | */ | |
da64ecc3 | 2410 | int img_get_alpha_info(const AVPicture *src, |
bb270c08 | 2411 | int pix_fmt, int width, int height); |
0469baf1 | 2412 | |
bc2ce35b | 2413 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
671adb17 MC |
2414 | /** |
2415 | * convert among pixel formats | |
2416 | * @deprecated Use the software scaler (swscale) instead. | |
2417 | */ | |
bc2ce35b | 2418 | attribute_deprecated int img_convert(AVPicture *dst, int dst_pix_fmt, |
115329f1 | 2419 | const AVPicture *src, int pix_fmt, |
219b06c6 | 2420 | int width, int height); |
bc2ce35b | 2421 | #endif |
219b06c6 FB |
2422 | |
2423 | /* deinterlace a picture */ | |
392cf77a | 2424 | /* deinterlace - if not supported return -1 */ |
da64ecc3 | 2425 | int avpicture_deinterlace(AVPicture *dst, const AVPicture *src, |
de6d9b64 FB |
2426 | int pix_fmt, int width, int height); |
2427 | ||
2428 | /* external high level API */ | |
2429 | ||
2430 | extern AVCodec *first_avcodec; | |
2431 | ||
156e5023 | 2432 | /* returns LIBAVCODEC_VERSION_INT constant */ |
51a49663 | 2433 | unsigned avcodec_version(void); |
8bceb6af | 2434 | /* returns LIBAVCODEC_BUILD constant */ |
51a49663 | 2435 | unsigned avcodec_build(void); |
f9ec0aa1 PI |
2436 | |
2437 | /** | |
2438 | * Initializes libavcodec. | |
2439 | * | |
2440 | * @warning This function \e must be called before any other libavcodec | |
2441 | * function. | |
2442 | */ | |
de6d9b64 FB |
2443 | void avcodec_init(void); |
2444 | ||
2445 | void register_avcodec(AVCodec *format); | |
f9ec0aa1 PI |
2446 | |
2447 | /** | |
645f7879 | 2448 | * Finds a registered encoder with a matching codec ID. |
f9ec0aa1 | 2449 | * |
f5bccd85 | 2450 | * @param id CodecID of the requested encoder |
f9ec0aa1 PI |
2451 | * @return An encoder if one was found, NULL otherwise. |
2452 | */ | |
de6d9b64 | 2453 | AVCodec *avcodec_find_encoder(enum CodecID id); |
f9ec0aa1 PI |
2454 | |
2455 | /** | |
645f7879 | 2456 | * Finds a registered encoder with the specified name. |
f9ec0aa1 | 2457 | * |
f5bccd85 | 2458 | * @param name name of the requested encoder |
f9ec0aa1 PI |
2459 | * @return An encoder if one was found, NULL otherwise. |
2460 | */ | |
98f3b098 | 2461 | AVCodec *avcodec_find_encoder_by_name(const char *name); |
f9ec0aa1 PI |
2462 | |
2463 | /** | |
645f7879 | 2464 | * Finds a registered decoder with a matching codec ID. |
f9ec0aa1 | 2465 | * |
f5bccd85 | 2466 | * @param id CodecID of the requested decoder |
f9ec0aa1 PI |
2467 | * @return A decoder if one was found, NULL otherwise. |
2468 | */ | |
de6d9b64 | 2469 | AVCodec *avcodec_find_decoder(enum CodecID id); |
f9ec0aa1 PI |
2470 | |
2471 | /** | |
645f7879 | 2472 | * Finds a registered decoder with the specified name. |
f9ec0aa1 | 2473 | * |
f5bccd85 | 2474 | * @param name name of the requested decoder |
f9ec0aa1 PI |
2475 | * @return A decoder if one was found, NULL otherwise. |
2476 | */ | |
de6d9b64 FB |
2477 | AVCodec *avcodec_find_decoder_by_name(const char *name); |
2478 | void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode); | |
2479 | ||
f9ec0aa1 PI |
2480 | /** |
2481 | * Sets the fields of the given AVCodecContext to default values. | |
2482 | * | |
2483 | * @param s The AVCodecContext of which the fields should be set to default values. | |
2484 | */ | |
1e491e29 | 2485 | void avcodec_get_context_defaults(AVCodecContext *s); |
f9ec0aa1 | 2486 | |
29301573 MN |
2487 | /** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! |
2488 | * we WILL change its arguments and name a few times! */ | |
2489 | void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType); | |
2490 | ||
f9ec0aa1 PI |
2491 | /** |
2492 | * Allocates an AVCodecContext and sets its fields to default values. The | |
2493 | * resulting struct can be deallocated by simply calling av_free(). | |
2494 | * | |
2495 | * @return An AVCodecContext filled with default values or NULL on failure. | |
2496 | * @see avcodec_get_context_defaults | |
2497 | */ | |
7ffbb60e | 2498 | AVCodecContext *avcodec_alloc_context(void); |
f9ec0aa1 | 2499 | |
29301573 MN |
2500 | /** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! |
2501 | * we WILL change its arguments and name a few times! */ | |
2502 | AVCodecContext *avcodec_alloc_context2(enum CodecType); | |
2503 | ||
f9ec0aa1 PI |
2504 | /** |
2505 | * Sets the fields of the given AVFrame to default values. | |
2506 | * | |
2507 | * @param pic The AVFrame of which the fields should be set to default values. | |
2508 | */ | |
7906085f | 2509 | void avcodec_get_frame_defaults(AVFrame *pic); |
f9ec0aa1 PI |
2510 | |
2511 | /** | |
2512 | * Allocates an AVFrame and sets its fields to default values. The resulting | |
2513 | * struct can be deallocated by simply calling av_free(). | |
2514 | * | |
2515 | * @return An AVFrame filled with default values or NULL on failure. | |
2516 | * @see avcodec_get_frame_defaults | |
2517 | */ | |
492cd3a9 | 2518 | AVFrame *avcodec_alloc_frame(void); |
1e491e29 | 2519 | |
492cd3a9 MN |
2520 | int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic); |
2521 | void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic); | |
3a569751 MN |
2522 | int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic); |
2523 | void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height); | |
f9ec0aa1 PI |
2524 | |
2525 | /** | |
2526 | * Checks if the given dimension of a picture is valid, meaning that all | |
2527 | * bytes of the picture can be addressed with a signed int. | |
2528 | * | |
2529 | * @param[in] w Width of the picture. | |
2530 | * @param[in] h Height of the picture. | |
2531 | * @return Zero if valid, a negative value if invalid. | |
2532 | */ | |
0ecca7a4 | 2533 | int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h); |
3a569751 | 2534 | enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt); |
1e491e29 | 2535 | |
5a815088 MN |
2536 | int avcodec_thread_init(AVCodecContext *s, int thread_count); |
2537 | void avcodec_thread_free(AVCodecContext *s); | |
2538 | int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count); | |
3a569751 | 2539 | int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count); |
9c3d33d6 MN |
2540 | //FIXME func typedef |
2541 | ||
7a06ff14 | 2542 | /** |
f9ec0aa1 PI |
2543 | * Initializes the AVCodecContext to use the given AVCodec. Prior to using this |
2544 | * function the context has to be allocated. | |
2545 | * | |
2546 | * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), | |
2547 | * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for | |
2548 | * retrieving a codec. | |
2549 | * | |
f5bccd85 | 2550 | * @warning This function is not thread safe! |
f9ec0aa1 PI |
2551 | * |
2552 | * @code | |
c9823f05 | 2553 | * avcodec_register_all(); |
f9ec0aa1 PI |
2554 | * codec = avcodec_find_decoder(CODEC_ID_H264); |
2555 | * if (!codec) | |
2556 | * exit(1); | |
2557 | * | |
2558 | * context = avcodec_alloc_context(); | |
2559 | * | |
2560 | * if (avcodec_open(context, codec) < 0) | |
2561 | * exit(1); | |
2562 | * @endcode | |
2563 | * | |
f5bccd85 | 2564 | * @param avctx The context which will be set up to use the given codec. |
f9ec0aa1 | 2565 | * @param codec The codec to use within the context. |
f5bccd85 | 2566 | * @return zero on success, a negative value on error |
f9ec0aa1 | 2567 | * @see avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder |
7a06ff14 | 2568 | */ |
de6d9b64 | 2569 | int avcodec_open(AVCodecContext *avctx, AVCodec *codec); |
7a06ff14 | 2570 | |
f9ec0aa1 PI |
2571 | /** |
2572 | * @deprecated Use avcodec_decode_audio2() instead. | |
2573 | */ | |
ac66834c MN |
2574 | attribute_deprecated int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, |
2575 | int *frame_size_ptr, | |
2576 | uint8_t *buf, int buf_size); | |
f9ec0aa1 | 2577 | |
98145875 | 2578 | /** |
f9ec0aa1 | 2579 | * Decodes an audio frame from \p buf into \p samples. |
f5bccd85 | 2580 | * The avcodec_decode_audio2() function decodes an audio frame from the input |
f9ec0aa1 | 2581 | * buffer \p buf of size \p buf_size. To decode it, it makes use of the |
f5bccd85 | 2582 | * audio codec which was coupled with \p avctx using avcodec_open(). The |
f9ec0aa1 PI |
2583 | * resulting decoded frame is stored in output buffer \p samples. If no frame |
2584 | * could be decompressed, \p frame_size_ptr is zero. Otherwise, it is the | |
2585 | * decompressed frame size in \e bytes. | |
2586 | * | |
2587 | * @warning You \e must set \p frame_size_ptr to the allocated size of the | |
2588 | * output buffer before calling avcodec_decode_audio2(). | |
2589 | * | |
2590 | * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than | |
2591 | * the actual read bytes because some optimized bitstream readers read 32 or 64 | |
2592 | * bits at once and could read over the end. | |
2593 | * | |
2594 | * @warning The end of the input buffer \p buf should be set to 0 to ensure that | |
2595 | * no overreading happens for damaged MPEG streams. | |
98145875 | 2596 | * |
f9ec0aa1 | 2597 | * @note You might have to align the input buffer \p buf and output buffer \p |
f5bccd85 | 2598 | * samples. The alignment requirements depend on the CPU: On some CPUs it isn't |
f9ec0aa1 PI |
2599 | * necessary at all, on others it won't work at all if not aligned and on others |
2600 | * it will work but it will have an impact on performance. In practice, the | |
2601 | * bitstream should have 4 byte alignment at minimum and all sample data should | |
2602 | * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If | |
2603 | * the linesize is not a multiple of 16 then there's no sense in aligning the | |
2604 | * start of the buffer to 16. | |
2605 | * | |
f5bccd85 DB |
2606 | * @param avctx the codec context |
2607 | * @param[out] samples the output buffer | |
2608 | * @param[in,out] frame_size_ptr the output buffer size in bytes | |
2609 | * @param[in] buf the input buffer | |
2610 | * @param[in] buf_size the input buffer size in bytes | |
f9ec0aa1 PI |
2611 | * @return On error a negative value is returned, otherwise the number of bytes |
2612 | * used or zero if no frame could be decompressed. | |
98145875 | 2613 | */ |
ac66834c | 2614 | int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples, |
de6d9b64 | 2615 | int *frame_size_ptr, |
0c1a9eda | 2616 | uint8_t *buf, int buf_size); |
f9ec0aa1 PI |
2617 | |
2618 | /** | |
2619 | * Decodes a video frame from \p buf into \p picture. | |
f5bccd85 | 2620 | * The avcodec_decode_video() function decodes a video frame from the input |
f9ec0aa1 | 2621 | * buffer \p buf of size \p buf_size. To decode it, it makes use of the |
f5bccd85 | 2622 | * video codec which was coupled with \p avctx using avcodec_open(). The |
f9ec0aa1 PI |
2623 | * resulting decoded frame is stored in \p picture. |
2624 | * | |
2625 | * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than | |
2626 | * the actual read bytes because some optimized bitstream readers read 32 or 64 | |
2627 | * bits at once and could read over the end. | |
2628 | * | |
2629 | * @warning The end of the input buffer \p buf should be set to 0 to ensure that | |
2630 | * no overreading happens for damaged MPEG streams. | |
2631 | * | |
2632 | * @note You might have to align the input buffer \p buf and output buffer \p | |
2633 | * samples. The alignment requirements depend on the CPU: on some CPUs it isn't | |
2634 | * necessary at all, on others it won't work at all if not aligned and on others | |
2635 | * it will work but it will have an impact on performance. In practice, the | |
2636 | * bitstream should have 4 byte alignment at minimum and all sample data should | |
2637 | * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If | |
2638 | * the linesize is not a multiple of 16 then there's no sense in aligning the | |
2639 | * start of the buffer to 16. | |
2640 | * | |
f5bccd85 | 2641 | * @param avctx the codec context |
f9ec0aa1 | 2642 | * @param[out] picture The AVFrame in which the decoded video frame will be stored. |
f5bccd85 DB |
2643 | * @param[in] buf the input buffer |
2644 | * @param[in] buf_size the size of the input buffer in bytes | |
2645 | * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero. | |
f9ec0aa1 PI |
2646 | * @return On error a negative value is returned, otherwise the number of bytes |
2647 | * used or zero if no frame could be decompressed. | |
2648 | */ | |
115329f1 | 2649 | int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, |
de6d9b64 | 2650 | int *got_picture_ptr, |
0c1a9eda | 2651 | uint8_t *buf, int buf_size); |
8ab4861c | 2652 | |
f5bccd85 DB |
2653 | /* Decode a subtitle message. Return -1 if error, otherwise return the |
2654 | * number of bytes used. If no subtitle could be decompressed, | |
2655 | * got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */ | |
240c1657 FB |
2656 | int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub, |
2657 | int *got_sub_ptr, | |
2658 | const uint8_t *buf, int buf_size); | |
115329f1 | 2659 | int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, |
917e06c8 | 2660 | int *data_size_ptr, |
0c1a9eda | 2661 | uint8_t *buf, int buf_size); |
f9ec0aa1 PI |
2662 | |
2663 | /** | |
2664 | * Encodes an audio frame from \p samples into \p buf. | |
f5bccd85 DB |
2665 | * The avcodec_encode_audio() function encodes an audio frame from the input |
2666 | * buffer \p samples. To encode it, it makes use of the audio codec which was | |
f9ec0aa1 PI |
2667 | * coupled with \p avctx using avcodec_open(). The resulting encoded frame is |
2668 | * stored in output buffer \p buf. | |
2669 | * | |
2670 | * @note The output buffer should be at least \c FF_MIN_BUFFER_SIZE bytes large. | |
2671 | * | |
f5bccd85 DB |
2672 | * @param avctx the codec context |
2673 | * @param[out] buf the output buffer | |
2674 | * @param[in] buf_size the output buffer size | |
2675 | * @param[in] samples the input buffer containing the samples | |
f9ec0aa1 PI |
2676 | * @return On error a negative value is returned, on succes zero or the number |
2677 | * of bytes used from the input buffer. | |
2678 | */ | |
115329f1 | 2679 | int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
de6d9b64 | 2680 | const short *samples); |
f9ec0aa1 PI |
2681 | |
2682 | /** | |
2683 | * Encodes a video frame from \p pict into \p buf. | |
f5bccd85 DB |
2684 | * The avcodec_encode_video() function encodes a video frame from the input |
2685 | * \p pict. To encode it, it makes use of the video codec which was coupled with | |
f9ec0aa1 PI |
2686 | * \p avctx using avcodec_open(). The resulting encoded bytes representing the |
2687 | * frame are stored in the output buffer \p buf. The input picture should be | |
2688 | * stored using a specific format, namely \c avctx.pix_fmt. | |
2689 | * | |
f5bccd85 DB |
2690 | * @param avctx the codec context |
2691 | * @param[out] buf the output buffer for the bitstream of encoded frame | |
2692 | * @param[in] buf_size the size of the output buffer in bytes | |
2693 | * @param[in] pict the input picture to encode | |
f9ec0aa1 PI |
2694 | * @return On error a negative value is returned, on success zero or the number |
2695 | * of bytes used from the input buffer. | |
2696 | */ | |
115329f1 | 2697 | int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
492cd3a9 | 2698 | const AVFrame *pict); |
115329f1 | 2699 | int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
240c1657 | 2700 | const AVSubtitle *sub); |
de6d9b64 FB |
2701 | |
2702 | int avcodec_close(AVCodecContext *avctx); | |
2703 | ||
2704 | void avcodec_register_all(void); | |
a96b68b7 | 2705 | |
8ab4861c PI |
2706 | /** |
2707 | * Flush buffers, should be called when seeking or when switching to a different stream. | |
2708 | */ | |
1c2a8c7f MN |
2709 | void avcodec_flush_buffers(AVCodecContext *avctx); |
2710 | ||
88730be6 MR |
2711 | void avcodec_default_free_buffers(AVCodecContext *s); |
2712 | ||
85975aa9 | 2713 | /* misc useful functions */ |
d8085ea7 MN |
2714 | |
2715 | /** | |
8f6260af PI |
2716 | * Returns a single letter to describe the given picture type \p pict_type. |
2717 | * | |
f5bccd85 | 2718 | * @param[in] pict_type the picture type |
8f6260af | 2719 | * @return A single character representing the picture type. |
d8085ea7 MN |
2720 | */ |
2721 | char av_get_pict_type_char(int pict_type); | |
2722 | ||
ac3e1834 | 2723 | /** |
2fa378a7 PI |
2724 | * Returns codec bits per sample. |
2725 | * | |
f5bccd85 | 2726 | * @param[in] codec_id the codec |
2fa378a7 | 2727 | * @return Number of bits per sample or zero if unknown for the given codec. |
ac3e1834 BC |
2728 | */ |
2729 | int av_get_bits_per_sample(enum CodecID codec_id); | |
2e8f2c20 | 2730 | |
42c71907 DC |
2731 | /** |
2732 | * Returns sample format bits per sample. | |
2733 | * | |
2734 | * @param[in] sample_fmt the sample format | |
2735 | * @return Number of bits per sample or zero if unknown for the given sample format. | |
2736 | */ | |
2737 | int av_get_bits_per_sample_format(enum SampleFormat sample_fmt); | |
2738 | ||
8424cf50 FB |
2739 | /* frame parsing */ |
2740 | typedef struct AVCodecParserContext { | |
2741 | void *priv_data; | |
2742 | struct AVCodecParser *parser; | |
2743 | int64_t frame_offset; /* offset of the current frame */ | |
115329f1 | 2744 | int64_t cur_offset; /* current offset |
8424cf50 FB |
2745 | (incremented by each av_parser_parse()) */ |
2746 | int64_t last_frame_offset; /* offset of the last frame */ | |
2747 | /* video info */ | |
f5bccd85 DB |
2748 | int pict_type; /* XXX: Put it back in AVCodecContext. */ |
2749 | int repeat_pict; /* XXX: Put it back in AVCodecContext. */ | |
b84f2a35 FB |
2750 | int64_t pts; /* pts of the current frame */ |
2751 | int64_t dts; /* dts of the current frame */ | |
2752 | ||
2753 | /* private data */ | |
2754 | int64_t last_pts; | |
2755 | int64_t last_dts; | |
a62aecce | 2756 | int fetch_timestamp; |
b84f2a35 FB |
2757 | |
2758 | #define AV_PARSER_PTS_NB 4 | |
2759 | int cur_frame_start_index; | |
2760 | int64_t cur_frame_offset[AV_PARSER_PTS_NB]; | |
2761 | int64_t cur_frame_pts[AV_PARSER_PTS_NB]; | |
2762 | int64_t cur_frame_dts[AV_PARSER_PTS_NB]; | |
115329f1 | 2763 | |
7cbaa7ba MN |
2764 | int flags; |
2765 | #define PARSER_FLAG_COMPLETE_FRAMES 0x0001 | |
a74008a4 JP |
2766 | |
2767 | int64_t offset; ///< byte offset from starting packet start | |
2768 | int64_t last_offset; | |
8424cf50 FB |
2769 | } AVCodecParserContext; |
2770 | ||
2771 | typedef struct AVCodecParser { | |
99f06236 | 2772 | int codec_ids[5]; /* several codec IDs are permitted */ |
8424cf50 FB |
2773 | int priv_data_size; |
2774 | int (*parser_init)(AVCodecParserContext *s); | |
115329f1 | 2775 | int (*parser_parse)(AVCodecParserContext *s, |
8424cf50 | 2776 | AVCodecContext *avctx, |
c53d2d90 | 2777 | const uint8_t **poutbuf, int *poutbuf_size, |
8424cf50 FB |
2778 | const uint8_t *buf, int buf_size); |
2779 | void (*parser_close)(AVCodecParserContext *s); | |
90ad92b3 | 2780 | int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size); |
8424cf50 FB |
2781 | struct AVCodecParser *next; |
2782 | } AVCodecParser; | |
2783 | ||
2784 | extern AVCodecParser *av_first_parser; | |
2785 | ||
2786 | void av_register_codec_parser(AVCodecParser *parser); | |
2787 | AVCodecParserContext *av_parser_init(int codec_id); | |
115329f1 | 2788 | int av_parser_parse(AVCodecParserContext *s, |
8424cf50 | 2789 | AVCodecContext *avctx, |
115329f1 | 2790 | uint8_t **poutbuf, int *poutbuf_size, |
b84f2a35 FB |
2791 | const uint8_t *buf, int buf_size, |
2792 | int64_t pts, int64_t dts); | |
90ad92b3 MN |
2793 | int av_parser_change(AVCodecParserContext *s, |
2794 | AVCodecContext *avctx, | |
115329f1 | 2795 | uint8_t **poutbuf, int *poutbuf_size, |
90ad92b3 | 2796 | const uint8_t *buf, int buf_size, int keyframe); |
8424cf50 FB |
2797 | void av_parser_close(AVCodecParserContext *s); |
2798 | ||
748c2fca MN |
2799 | |
2800 | typedef struct AVBitStreamFilterContext { | |
514e0831 | 2801 | void *priv_data; |
748c2fca MN |
2802 | struct AVBitStreamFilter *filter; |
2803 | AVCodecParserContext *parser; | |
2804 | struct AVBitStreamFilterContext *next; | |
2805 | } AVBitStreamFilterContext; | |
2806 | ||
2807 | ||
2808 | typedef struct AVBitStreamFilter { | |
2809 | const char *name; | |
514e0831 | 2810 | int priv_data_size; |
748c2fca MN |
2811 | int (*filter)(AVBitStreamFilterContext *bsfc, |
2812 | AVCodecContext *avctx, const char *args, | |
2813 | uint8_t **poutbuf, int *poutbuf_size, | |
2814 | const uint8_t *buf, int buf_size, int keyframe); | |
0a1a0a80 | 2815 | void (*close)(AVBitStreamFilterContext *bsfc); |
748c2fca MN |
2816 | struct AVBitStreamFilter *next; |
2817 | } AVBitStreamFilter; | |
2818 | ||
748c2fca MN |
2819 | void av_register_bitstream_filter(AVBitStreamFilter *bsf); |
2820 | AVBitStreamFilterContext *av_bitstream_filter_init(const char *name); | |
2821 | int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc, | |
2822 | AVCodecContext *avctx, const char *args, | |
2823 | uint8_t **poutbuf, int *poutbuf_size, | |
2824 | const uint8_t *buf, int buf_size, int keyframe); | |
2825 | void av_bitstream_filter_close(AVBitStreamFilterContext *bsf); | |
2826 | ||
748c2fca | 2827 | |
544eb99c | 2828 | /* memory */ |
8ab4861c PI |
2829 | |
2830 | /** | |
4267e90d PI |
2831 | * Reallocates the given block if it is not large enough, otherwise it |
2832 | * does nothing. | |
2833 | * | |
2834 | * @see av_realloc | |
8ab4861c | 2835 | */ |
97d96aaa | 2836 | void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size); |
8ab4861c | 2837 | |
855ea723 | 2838 | /* for static data only */ |
8ab4861c PI |
2839 | |
2840 | /** | |
f5bccd85 | 2841 | * Frees all static arrays and resets their pointers to 0. |
8079a686 | 2842 | * Call this function to release all statically allocated tables. |
671adb17 | 2843 | * |
df3a80b5 | 2844 | * @deprecated. Code which uses av_free_static is broken/misdesigned |
671adb17 MC |
2845 | * and should correctly use static arrays |
2846 | * | |
8ab4861c | 2847 | */ |
ca2a0c93 | 2848 | attribute_deprecated void av_free_static(void); |
8ab4861c PI |
2849 | |
2850 | /** | |
9c5cb112 PI |
2851 | * Allocation of static arrays. |
2852 | * | |
2853 | * @warning Do not use for normal allocation. | |
2854 | * | |
2855 | * @param[in] size The amount of memory you need in bytes. | |
f5bccd85 | 2856 | * @return block of memory of the requested size |
df3a80b5 | 2857 | * @deprecated. Code which uses av_mallocz_static is broken/misdesigned |
671adb17 | 2858 | * and should correctly use static arrays |
8ab4861c | 2859 | */ |
ca2a0c93 | 2860 | attribute_deprecated void *av_mallocz_static(unsigned int size); |
8ab4861c | 2861 | |
392cf77a PI |
2862 | /** |
2863 | * Copy image 'src' to 'dst'. | |
2864 | */ | |
636d6a4a | 2865 | void av_picture_copy(AVPicture *dst, const AVPicture *src, |
e1c2a5a0 RT |
2866 | int pix_fmt, int width, int height); |
2867 | ||
392cf77a | 2868 | /** |
f5bccd85 | 2869 | * Crop image top and left side. |
392cf77a | 2870 | */ |
636d6a4a | 2871 | int av_picture_crop(AVPicture *dst, const AVPicture *src, |
f2651e7a BC |
2872 | int pix_fmt, int top_band, int left_band); |
2873 | ||
392cf77a | 2874 | /** |
f5bccd85 | 2875 | * Pad image. |
392cf77a | 2876 | */ |
636d6a4a | 2877 | int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt, |
5341c209 LA |
2878 | int padtop, int padbottom, int padleft, int padright, int *color); |
2879 | ||
636d6a4a | 2880 | #if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
671adb17 MC |
2881 | /** |
2882 | * @deprecated Use the software scaler (swscale) instead. | |
2883 | */ | |
636d6a4a PI |
2884 | attribute_deprecated void img_copy(AVPicture *dst, const AVPicture *src, |
2885 | int pix_fmt, int width, int height); | |
2886 | ||
671adb17 MC |
2887 | /** |
2888 | * @deprecated Use the software scaler (swscale) instead. | |
2889 | */ | |
636d6a4a PI |
2890 | attribute_deprecated int img_crop(AVPicture *dst, const AVPicture *src, |
2891 | int pix_fmt, int top_band, int left_band); | |
2892 | ||
671adb17 MC |
2893 | /** |
2894 | * @deprecated Use the software scaler (swscale) instead. | |
2895 | */ | |
636d6a4a PI |
2896 | attribute_deprecated int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt, |
2897 | int padtop, int padbottom, int padleft, int padright, int *color); | |
2898 | #endif | |
2899 | ||
ad2b531d MR |
2900 | extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v); |
2901 | ||
26ef3220 SS |
2902 | /** |
2903 | * Parses \p str and put in \p width_ptr and \p height_ptr the detected values. | |
2904 | * | |
755bfeab | 2905 | * @return 0 in case of a successful parsing, a negative value otherwise |
26ef3220 SS |
2906 | * @param[in] str the string to parse: it has to be a string in the format |
2907 | * <width>x<height> or a valid video frame size abbreviation. | |
2908 | * @param[in,out] width_ptr pointer to the variable which will contain the detected | |
2909 | * frame width value | |
2910 | * @param[in,out] height_ptr pointer to the variable which will contain the detected | |
2911 | * frame height value | |
2912 | */ | |
2913 | int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str); | |
2914 | ||
2915 | /** | |
2916 | * Parses \p str and put in \p frame_rate the detected values. | |
2917 | * | |
755bfeab | 2918 | * @return 0 in case of a successful parsing, a negative value otherwise |
26ef3220 SS |
2919 | * @param[in] str the string to parse: it has to be a string in the format |
2920 | * <frame_rate_nom>/<frame_rate_den>, a float number or a valid video rate abbreviation | |
2921 | * @param[in,out] frame_rate pointer to the AVRational which will contain the detected | |
2922 | * frame rate | |
2923 | */ | |
2924 | int av_parse_video_frame_rate(AVRational *frame_rate, const char *str); | |
2925 | ||
8fa36ae0 FR |
2926 | /* error handling */ |
2927 | #if EINVAL > 0 | |
f5bccd85 DB |
2928 | #define AVERROR(e) (-(e)) /**< Returns a negative error code from a POSIX error code, to return from library functions. */ |
2929 | #define AVUNERROR(e) (-(e)) /**< Returns a POSIX error code from a library function error return value. */ | |
8fa36ae0 | 2930 | #else |
f5bccd85 | 2931 | /* Some platforms have E* and errno already negated. */ |
8fa36ae0 FR |
2932 | #define AVERROR(e) (e) |
2933 | #define AVUNERROR(e) (e) | |
2934 | #endif | |
2935 | #define AVERROR_UNKNOWN AVERROR(EINVAL) /**< unknown error */ | |
f5bccd85 DB |
2936 | #define AVERROR_IO AVERROR(EIO) /**< I/O error */ |
2937 | #define AVERROR_NUMEXPECTED AVERROR(EDOM) /**< Number syntax expected in filename. */ | |
8fa36ae0 FR |
2938 | #define AVERROR_INVALIDDATA AVERROR(EINVAL) /**< invalid data found */ |
2939 | #define AVERROR_NOMEM AVERROR(ENOMEM) /**< not enough memory */ | |
2940 | #define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */ | |
f5bccd85 | 2941 | #define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< Operation not supported. */ |
35e7f087 | 2942 | #define AVERROR_NOENT AVERROR(ENOENT) /**< No such file or directory. */ |
f3a3c72e | 2943 | #define AVERROR_PATCHWELCOME -MKTAG('P','A','W','E') /**< Not yet implemented in FFmpeg. Patches welcome. */ |
8fa36ae0 | 2944 | |
5b21bdab | 2945 | #endif /* FFMPEG_AVCODEC_H */ |