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1 04d7f601 Diego Biurrun
/*
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 * copyright (c) 2001 Fabrice Bellard
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 *
4 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
7 04d7f601 Diego Biurrun
 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
9 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
12 04d7f601 Diego Biurrun
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
17 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
18 e5a389a1 Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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21 98790382 Stefano Sabatini
#ifndef AVCODEC_AVCODEC_H
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#define AVCODEC_AVCODEC_H
23 a96b68b7 Fabrice Bellard
24 36df8805 Michael Niedermayer
/**
25 ba87f080 Diego Biurrun
 * @file
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 * external API header
27 36df8805 Michael Niedermayer
 */
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29 c60208e7 Diego Biurrun
#include <errno.h>
30 7ffe76e5 Reinhard Tartler
#include "libavutil/samplefmt.h"
31 76a448ed Måns Rullgård
#include "libavutil/avutil.h"
32 7160bb71 Stefano Sabatini
#include "libavutil/cpu.h"
33 de6d9b64 Fabrice Bellard
34 3dd851c4 Anton Khirnov
#include "libavcodec/version.h"
35 eda7c983 Aurelien Jacobs
36 7ebf5927 Michael Niedermayer
/**
37 48966b02 Måns Rullgård
 * Identify the syntax and semantics of the bitstream.
38 6b0cdb6e Nicolas George
 * The principle is roughly:
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 * Two decoders with the same ID can decode the same streams.
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 * Two encoders with the same ID can encode compatible streams.
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 * There may be slight deviations from the principle due to implementation
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 * details.
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 *
44 f5bccd85 Diego Biurrun
 * If you add a codec ID to this list, add it so that
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 * 1. no value of a existing codec ID changes (that would break ABI),
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 * 2. it is as close as possible to similar codecs.
47 7ebf5927 Michael Niedermayer
 */
48 de6d9b64 Fabrice Bellard
enum CodecID {
49 115329f1 Diego Biurrun
    CODEC_ID_NONE,
50 ba0dabbf Diego Biurrun
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    /* video codecs */
52 de6d9b64 Fabrice Bellard
    CODEC_ID_MPEG1VIDEO,
53 0e373b95 Michael Niedermayer
    CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
54 fb364ada Ivan Kalvachev
    CODEC_ID_MPEG2VIDEO_XVMC,
55 c6148de2 Michael Niedermayer
    CODEC_ID_H261,
56 de6d9b64 Fabrice Bellard
    CODEC_ID_H263,
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    CODEC_ID_RV10,
58 68b94c35 Michael Niedermayer
    CODEC_ID_RV20,
59 de6d9b64 Fabrice Bellard
    CODEC_ID_MJPEG,
60 b135d9fb Alex Beregszaszi
    CODEC_ID_MJPEGB,
61 b1e6b355 Michael Niedermayer
    CODEC_ID_LJPEG,
62 5e83dec4 Alex Beregszaszi
    CODEC_ID_SP5X,
63 5639729b Michael Niedermayer
    CODEC_ID_JPEGLS,
64 bf89e6b1 Fabrice Bellard
    CODEC_ID_MPEG4,
65 de6d9b64 Fabrice Bellard
    CODEC_ID_RAWVIDEO,
66 84afee34 Michael Niedermayer
    CODEC_ID_MSMPEG4V1,
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    CODEC_ID_MSMPEG4V2,
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    CODEC_ID_MSMPEG4V3,
69 e1a9dbff Michael Niedermayer
    CODEC_ID_WMV1,
70 b50eef3a Michael Niedermayer
    CODEC_ID_WMV2,
71 de6d9b64 Fabrice Bellard
    CODEC_ID_H263P,
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    CODEC_ID_H263I,
73 d4f5d74a Garrick Meeker
    CODEC_ID_FLV1,
74 be8ffec9 Nick Kurshev
    CODEC_ID_SVQ1,
75 8b82a956 Michael Niedermayer
    CODEC_ID_SVQ3,
76 020fcc94 Fabrice Bellard
    CODEC_ID_DVVIDEO,
77 11f18faf Michael Niedermayer
    CODEC_ID_HUFFYUV,
78 f70f7c6d Michael Niedermayer
    CODEC_ID_CYUV,
79 0da71265 Michael Niedermayer
    CODEC_ID_H264,
80 deabd4fd Mike Melanson
    CODEC_ID_INDEO3,
81 d86053a4 Mike Melanson
    CODEC_ID_VP3,
82 f44ee2c3 Alex Beregszaszi
    CODEC_ID_THEORA,
83 3d2e8cce Michael Niedermayer
    CODEC_ID_ASV1,
84 9b56edf5 Michael Niedermayer
    CODEC_ID_ASV2,
85 5e20f836 Michael Niedermayer
    CODEC_ID_FFV1,
86 e2a7bb28 Mike Melanson
    CODEC_ID_4XM,
87 be3564ed Michael Niedermayer
    CODEC_ID_VCR1,
88 3aff069b Alex Beregszaszi
    CODEC_ID_CLJR,
89 c3bf0288 Michael Niedermayer
    CODEC_ID_MDEC,
90 3ef8be2b Mike Melanson
    CODEC_ID_ROQ,
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    CODEC_ID_INTERPLAY_VIDEO,
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    CODEC_ID_XAN_WC3,
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    CODEC_ID_XAN_WC4,
94 2fdf638b Mike Melanson
    CODEC_ID_RPZA,
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    CODEC_ID_CINEPAK,
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    CODEC_ID_WS_VQA,
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    CODEC_ID_MSRLE,
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    CODEC_ID_MSVIDEO1,
99 4120a53a Mike Melanson
    CODEC_ID_IDCIN,
100 1dc1ed99 Roberto Togni
    CODEC_ID_8BPS,
101 11e29a41 Mike Melanson
    CODEC_ID_SMC,
102 42cad81a Mike Melanson
    CODEC_ID_FLIC,
103 9a4117d5 Mike Melanson
    CODEC_ID_TRUEMOTION1,
104 fafa0b75 Mike Melanson
    CODEC_ID_VMDVIDEO,
105 a273bbfb Roberto Togni
    CODEC_ID_MSZH,
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    CODEC_ID_ZLIB,
107 070ed1bc Mike Melanson
    CODEC_ID_QTRLE,
108 791e7b83 Michael Niedermayer
    CODEC_ID_SNOW,
109 9d53d58e Mike Melanson
    CODEC_ID_TSCC,
110 d0a0bbd2 Mike Melanson
    CODEC_ID_ULTI,
111 d08d7142 Mike Melanson
    CODEC_ID_QDRAW,
112 ab711b3c Mike Melanson
    CODEC_ID_VIXL,
113 acfd8f0f Mike Melanson
    CODEC_ID_QPEG,
114 17179d2d Michael Niedermayer
    CODEC_ID_PNG,
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    CODEC_ID_PPM,
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    CODEC_ID_PBM,
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    CODEC_ID_PGM,
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    CODEC_ID_PGMYUV,
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    CODEC_ID_PAM,
120 f37b9768 Loren Merritt
    CODEC_ID_FFVHUFF,
121 3f05305d Michael Niedermayer
    CODEC_ID_RV30,
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    CODEC_ID_RV40,
123 10b9c374 Kostya Shishkov
    CODEC_ID_VC1,
124 21aa398f Alex Beregszaszi
    CODEC_ID_WMV3,
125 9c7fb608 Mike Melanson
    CODEC_ID_LOCO,
126 a8a15e9d Mike Melanson
    CODEC_ID_WNV1,
127 589f8220 Mike Melanson
    CODEC_ID_AASC,
128 856dbbff Michael Niedermayer
    CODEC_ID_INDEO2,
129 b81f8949 Mike Melanson
    CODEC_ID_FRAPS,
130 64af6168 Mike Melanson
    CODEC_ID_TRUEMOTION2,
131 9fa62f2a Måns Rullgård
    CODEC_ID_BMP,
132 e0f80bd7 Reimar Döffinger
    CODEC_ID_CSCD,
133 4e114829 Mike Melanson
    CODEC_ID_MMVIDEO,
134 9c8d8e84 Mike Melanson
    CODEC_ID_ZMBV,
135 26376701 Mike Melanson
    CODEC_ID_AVS,
136 348efc18 Kostya Shishkov
    CODEC_ID_SMACKVIDEO,
137 dfca23e3 Reimar Döffinger
    CODEC_ID_NUV,
138 fd7b1991 Kostya Shishkov
    CODEC_ID_KMVC,
139 0919e788 Benjamin Larsson
    CODEC_ID_FLASHSV,
140 20ffddb9 Stefan Gehrer
    CODEC_ID_CAVS,
141 f31065f6 Baptiste Coudurier
    CODEC_ID_JPEG2000,
142 eb57c889 Kostya Shishkov
    CODEC_ID_VMNC,
143 5ce117c3 Aurelien Jacobs
    CODEC_ID_VP5,
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    CODEC_ID_VP6,
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    CODEC_ID_VP6F,
146 3689cf16 Kostya Shishkov
    CODEC_ID_TARGA,
147 72450e50 Baptiste Coudurier
    CODEC_ID_DSICINVIDEO,
148 29f86228 Baptiste Coudurier
    CODEC_ID_TIERTEXSEQVIDEO,
149 a991b1fe Kostya Shishkov
    CODEC_ID_TIFF,
150 06d392a7 Baptiste Coudurier
    CODEC_ID_GIF,
151 3edeab82 Panagiotis Issaris
    CODEC_ID_FFH264,
152 33a0dd37 Kostya Shishkov
    CODEC_ID_DXA,
153 52b6bad2 Baptiste Coudurier
    CODEC_ID_DNXHD,
154 efb0c399 Diego Biurrun
    CODEC_ID_THP,
155 2d99eed1 Xiaohui Sun
    CODEC_ID_SGI,
156 9a0ddd09 Anssi Hannula
    CODEC_ID_C93,
157 1e6c6759 Nicholas Tung
    CODEC_ID_BETHSOFTVID,
158 b46d68c6 Ivo van Poorten
    CODEC_ID_PTX,
159 1ca779e7 Ivo van Poorten
    CODEC_ID_TXD,
160 91fc2cf1 Aurelien Jacobs
    CODEC_ID_VP6A,
161 8787d837 Vladimir Voroshilov
    CODEC_ID_AMV,
162 66f7679c Kostya Shishkov
    CODEC_ID_VB,
163 b4abe1d1 Ivo van Poorten
    CODEC_ID_PCX,
164 d43df959 Ivo van Poorten
    CODEC_ID_SUNRAST,
165 800b9c24 Benjamin Larsson
    CODEC_ID_INDEO4,
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    CODEC_ID_INDEO5,
167 a7129de5 Ramiro Polla
    CODEC_ID_MIMIC,
168 975cdc8f Sascha Sommer
    CODEC_ID_RL2,
169 cb21e0a7 Jai Menon
    CODEC_ID_8SVX_EXP,
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    CODEC_ID_8SVX_FIB,
171 40d26273 Eli Friedman
    CODEC_ID_ESCAPE124,
172 782a58ec Michael Niedermayer
    CODEC_ID_DIRAC,
173 b64c096b Sisir Koppaka
    CODEC_ID_BFI,
174 495900f7 Peter Ross
    CODEC_ID_CMV,
175 974e0eee Gregory Montoir
    CODEC_ID_MOTIONPIXELS,
176 cfc78718 Peter Ross
    CODEC_ID_TGV,
177 42b30357 Peter Ross
    CODEC_ID_TGQ,
178 d8964f3a Peter Ross
    CODEC_ID_TQI,
179 c21fbefb Kostya Shishkov
    CODEC_ID_AURA,
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    CODEC_ID_AURA2,
181 97f92143 Michael Niedermayer
    CODEC_ID_V210X,
182 a1fd2bc3 Daniel Verkamp
    CODEC_ID_TMV,
183 ca0bb1c4 Baptiste Coudurier
    CODEC_ID_V210,
184 94d3d6a4 Jimmy Christensen
    CODEC_ID_DPX,
185 c63ea92b Peter Ross
    CODEC_ID_MAD,
186 d8b35b85 Reimar Döffinger
    CODEC_ID_FRWU,
187 0aa6a518 Daniel Verkamp
    CODEC_ID_FLASHSV2,
188 a3d995c1 Michael Tison
    CODEC_ID_CDGRAPHICS,
189 4aaab0a3 Reimar Döffinger
    CODEC_ID_R210,
190 a1ae40fd Peter Ross
    CODEC_ID_ANM,
191 4e5f42dd Daniel Verkamp
    CODEC_ID_BINKVIDEO,
192 b9e06ddd Peter Ross
    CODEC_ID_IFF_ILBM,
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    CODEC_ID_IFF_BYTERUN1,
194 bf354122 Daniel Verkamp
    CODEC_ID_KGV1,
195 148bcae9 Mohamed Naufal
    CODEC_ID_YOP,
196 a98c2dfa Google
    CODEC_ID_VP8,
197 a526d619 Peter Ross
    CODEC_ID_PICTOR,
198 beaa963c Peter Ross
    CODEC_ID_ANSI,
199 40c5ee99 Tobias Bindhammer
    CODEC_ID_A64_MULTI,
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    CODEC_ID_A64_MULTI5,
201 43836928 Zhou Zongyi
    CODEC_ID_R10K,
202 9d09ebf1 Anatoly Nenashev
    CODEC_ID_MXPEG,
203 d267b339 Carl Eugen Hoyos
    CODEC_ID_LAGARITH,
204 6cd67b9f Tomas Härdin
    CODEC_ID_PRORES,
205 2f46a0af Peter Ross
    CODEC_ID_JV,
206 42315dab Kostya Shishkov
    CODEC_ID_DFA,
207 40c5ee99 Tobias Bindhammer
208 f5bccd85 Diego Biurrun
    /* various PCM "codecs" */
209 17179d2d Michael Niedermayer
    CODEC_ID_PCM_S16LE= 0x10000,
210 a96b68b7 Fabrice Bellard
    CODEC_ID_PCM_S16BE,
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    CODEC_ID_PCM_U16LE,
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    CODEC_ID_PCM_U16BE,
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    CODEC_ID_PCM_S8,
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    CODEC_ID_PCM_U8,
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    CODEC_ID_PCM_MULAW,
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    CODEC_ID_PCM_ALAW,
217 b461b3bc Reimar Döffinger
    CODEC_ID_PCM_S32LE,
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    CODEC_ID_PCM_S32BE,
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    CODEC_ID_PCM_U32LE,
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    CODEC_ID_PCM_U32BE,
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    CODEC_ID_PCM_S24LE,
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    CODEC_ID_PCM_S24BE,
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    CODEC_ID_PCM_U24LE,
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    CODEC_ID_PCM_U24BE,
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    CODEC_ID_PCM_S24DAUD,
226 a11c2a2c Michael Niedermayer
    CODEC_ID_PCM_ZORK,
227 725d86bf Aurelien Jacobs
    CODEC_ID_PCM_S16LE_PLANAR,
228 1472b7dd Lars Täuber
    CODEC_ID_PCM_DVD,
229 aa29709e Peter Ross
    CODEC_ID_PCM_F32BE,
230 143a5d6f Peter Ross
    CODEC_ID_PCM_F32LE,
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    CODEC_ID_PCM_F64BE,
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    CODEC_ID_PCM_F64LE,
233 5dd3707b Christian Schmidt
    CODEC_ID_PCM_BLURAY,
234 fbeabfca Tomas Härdin
    CODEC_ID_PCM_LXF,
235 0147f198 François Revol
236 f5bccd85 Diego Biurrun
    /* various ADPCM codecs */
237 17179d2d Michael Niedermayer
    CODEC_ID_ADPCM_IMA_QT= 0x11000,
238 0147f198 François Revol
    CODEC_ID_ADPCM_IMA_WAV,
239 9937e686 Mike Melanson
    CODEC_ID_ADPCM_IMA_DK3,
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    CODEC_ID_ADPCM_IMA_DK4,
241 2fdf638b Mike Melanson
    CODEC_ID_ADPCM_IMA_WS,
242 7d8379f2 Mike Melanson
    CODEC_ID_ADPCM_IMA_SMJPEG,
243 0147f198 François Revol
    CODEC_ID_ADPCM_MS,
244 e2a7bb28 Mike Melanson
    CODEC_ID_ADPCM_4XM,
245 fc384777 Mike Melanson
    CODEC_ID_ADPCM_XA,
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    CODEC_ID_ADPCM_ADX,
247 7d8379f2 Mike Melanson
    CODEC_ID_ADPCM_EA,
248 e5966052 Roman Shaposhnik
    CODEC_ID_ADPCM_G726,
249 b3bfb299 Mike Melanson
    CODEC_ID_ADPCM_CT,
250 659c3692 Alex Beregszaszi
    CODEC_ID_ADPCM_SWF,
251 2ff4524e Vidar Madsen
    CODEC_ID_ADPCM_YAMAHA,
252 2433f24f Aurelien Jacobs
    CODEC_ID_ADPCM_SBPRO_4,
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    CODEC_ID_ADPCM_SBPRO_3,
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    CODEC_ID_ADPCM_SBPRO_2,
255 d1e0d21f Marco Gerards
    CODEC_ID_ADPCM_THP,
256 3a7f5d07 Vitor Sessak
    CODEC_ID_ADPCM_IMA_AMV,
257 e7583962 Peter Ross
    CODEC_ID_ADPCM_EA_R1,
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    CODEC_ID_ADPCM_EA_R3,
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    CODEC_ID_ADPCM_EA_R2,
260 7bb65d89 Peter Ross
    CODEC_ID_ADPCM_IMA_EA_SEAD,
261 fac84d3c Peter Ross
    CODEC_ID_ADPCM_IMA_EA_EACS,
262 271b4095 Aurelien Jacobs
    CODEC_ID_ADPCM_EA_XAS,
263 861c63a2 Robert Marston
    CODEC_ID_ADPCM_EA_MAXIS_XA,
264 055dc116 Stefan Gehrer
    CODEC_ID_ADPCM_IMA_ISS,
265 58e37eaf Martin Storsjö
    CODEC_ID_ADPCM_G722,
266 891f64b3 joca@rixmail.se
267 17179d2d Michael Niedermayer
    /* AMR */
268
    CODEC_ID_AMR_NB= 0x12000,
269 d663a1fd Michael Niedermayer
    CODEC_ID_AMR_WB,
270
271 b8414bbd Nick Kurshev
    /* RealAudio codecs*/
272 17179d2d Michael Niedermayer
    CODEC_ID_RA_144= 0x13000,
273 b8414bbd Nick Kurshev
    CODEC_ID_RA_288,
274 3ef8be2b Mike Melanson
275
    /* various DPCM codecs */
276 17179d2d Michael Niedermayer
    CODEC_ID_ROQ_DPCM= 0x14000,
277 3ef8be2b Mike Melanson
    CODEC_ID_INTERPLAY_DPCM,
278 9937e686 Mike Melanson
    CODEC_ID_XAN_DPCM,
279 d08d7142 Mike Melanson
    CODEC_ID_SOL_DPCM,
280 115329f1 Diego Biurrun
281 ba0dabbf Diego Biurrun
    /* audio codecs */
282 17179d2d Michael Niedermayer
    CODEC_ID_MP2= 0x15000,
283 0e373b95 Michael Niedermayer
    CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
284 17179d2d Michael Niedermayer
    CODEC_ID_AAC,
285
    CODEC_ID_AC3,
286
    CODEC_ID_DTS,
287
    CODEC_ID_VORBIS,
288
    CODEC_ID_DVAUDIO,
289
    CODEC_ID_WMAV1,
290
    CODEC_ID_WMAV2,
291
    CODEC_ID_MACE3,
292
    CODEC_ID_MACE6,
293
    CODEC_ID_VMDAUDIO,
294
    CODEC_ID_SONIC,
295
    CODEC_ID_SONIC_LS,
296 ac2570a8 Michael Niedermayer
    CODEC_ID_FLAC,
297 1ede228a Roberto Togni
    CODEC_ID_MP3ADU,
298 d2a7718d Roberto Togni
    CODEC_ID_MP3ON4,
299 85ad5695 Michael Niedermayer
    CODEC_ID_SHORTEN,
300 5df8a0c6 Michael Niedermayer
    CODEC_ID_ALAC,
301 034eeaa1 Mike Melanson
    CODEC_ID_WESTWOOD_SND1,
302 0e373b95 Michael Niedermayer
    CODEC_ID_GSM, ///< as in Berlin toast format
303 d9b1c197 Roberto Togni
    CODEC_ID_QDM2,
304 e0f7e329 Benjamin Larsson
    CODEC_ID_COOK,
305 bf3027c8 Diego Biurrun
    CODEC_ID_TRUESPEECH,
306 a24c4a2a Alex Beregszaszi
    CODEC_ID_TTA,
307 348efc18 Kostya Shishkov
    CODEC_ID_SMACKAUDIO,
308 6c496518 Benjamin Larsson
    CODEC_ID_QCELP,
309 730581f3 Kostya Shishkov
    CODEC_ID_WAVPACK,
310 72450e50 Baptiste Coudurier
    CODEC_ID_DSICINAUDIO,
311 84ed36da Kostya Shishkov
    CODEC_ID_IMC,
312 185c7b6b Kostya Shishkov
    CODEC_ID_MUSEPACK7,
313 aad512b4 Michael Niedermayer
    CODEC_ID_MLP,
314 f5bccd85 Diego Biurrun
    CODEC_ID_GSM_MS, /* as found in WAV */
315 10e26bc7 Benjamin Larsson
    CODEC_ID_ATRAC3,
316 8950f828 Michael Niedermayer
    CODEC_ID_VOXWARE,
317 bf4a1f17 Kostya Shishkov
    CODEC_ID_APE,
318 636b13c5 Benjamin Larsson
    CODEC_ID_NELLYMOSER,
319 12877faf Kostya Shishkov
    CODEC_ID_MUSEPACK8,
320 cb4ddf77 Reimar Döffinger
    CODEC_ID_SPEEX,
321 7bb8d51c Benjamin Larsson
    CODEC_ID_WMAVOICE,
322
    CODEC_ID_WMAPRO,
323 800b9c24 Benjamin Larsson
    CODEC_ID_WMALOSSLESS,
324 b339f0c6 Benjamin Larsson
    CODEC_ID_ATRAC3P,
325 2988c93d Justin Ruggles
    CODEC_ID_EAC3,
326 faeedbbb Benjamin Larsson
    CODEC_ID_SIPR,
327 7f507b2d Michael Niedermayer
    CODEC_ID_MP1,
328 616e899c Vitor Sessak
    CODEC_ID_TWINVQ,
329 9ba4821d Ramiro Polla
    CODEC_ID_TRUEHD,
330 b24bbbb4 Jai Menon
    CODEC_ID_MP4ALS,
331 223e8df1 Benjamin Larsson
    CODEC_ID_ATRAC1,
332 4e5f42dd Daniel Verkamp
    CODEC_ID_BINKAUDIO_RDFT,
333
    CODEC_ID_BINKAUDIO_DCT,
334 136e19e1 Janne Grunau
    CODEC_ID_AAC_LATM,
335 e11afd71 Sascha Sommer
    CODEC_ID_QDMC,
336 e61b83d2 Nicolas George
    CODEC_ID_CELT,
337 115329f1 Diego Biurrun
338 240c1657 Fabrice Bellard
    /* subtitle codecs */
339 115329f1 Diego Biurrun
    CODEC_ID_DVD_SUBTITLE= 0x17000,
340
    CODEC_ID_DVB_SUBTITLE,
341 0e373b95 Michael Niedermayer
    CODEC_ID_TEXT,  ///< raw UTF-8 text
342 7e2643ae Reimar Döffinger
    CODEC_ID_XSUB,
343 f9a9b350 Evgeniy Stepanov
    CODEC_ID_SSA,
344 cc8c2c6a Reimar Döffinger
    CODEC_ID_MOV_TEXT,
345 c58b82a2 Stephen Backway
    CODEC_ID_HDMV_PGS_SUBTITLE,
346 e58992e4 Francesco Lavra
    CODEC_ID_DVB_TELETEXT,
347 ba2c508d Aurelien Jacobs
    CODEC_ID_SRT,
348 3c9bfb33 Aurelien Jacobs
    CODEC_ID_MICRODVD,
349 115329f1 Diego Biurrun
350 7ce68923 Diego Biurrun
    /* other specific kind of codecs (generally used for attachments) */
351 f8d7c9d3 Evgeniy Stepanov
    CODEC_ID_TTF= 0x18000,
352
353 0bef08e5 Michael Niedermayer
    CODEC_ID_PROBE= 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
354
355 0e373b95 Michael Niedermayer
    CODEC_ID_MPEG2TS= 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
356 f5bccd85 Diego Biurrun
                                * stream (only used by libavformat) */
357 fd5b124d Anton Khirnov
    CODEC_ID_FFMETADATA=0x21000,   ///< Dummy codec for streams containing only metadata information.
358 de6d9b64 Fabrice Bellard
};
359 dcedf586 Fabrice Bellard
360 262d1c5d Stefano Sabatini
#if FF_API_OLD_SAMPLE_FMT
361
#define SampleFormat AVSampleFormat
362
363
#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE
364
#define SAMPLE_FMT_U8   AV_SAMPLE_FMT_U8
365
#define SAMPLE_FMT_S16  AV_SAMPLE_FMT_S16
366
#define SAMPLE_FMT_S32  AV_SAMPLE_FMT_S32
367
#define SAMPLE_FMT_FLT  AV_SAMPLE_FMT_FLT
368
#define SAMPLE_FMT_DBL  AV_SAMPLE_FMT_DBL
369
#define SAMPLE_FMT_NB   AV_SAMPLE_FMT_NB
370
#endif
371 a96b68b7 Fabrice Bellard
372 176a6157 Stefano Sabatini
#if FF_API_OLD_AUDIOCONVERT
373 7ffe76e5 Reinhard Tartler
#include "libavutil/audioconvert.h"
374 176a6157 Stefano Sabatini
375 0d72e7d0 Peter Ross
/* Audio channel masks */
376 176a6157 Stefano Sabatini
#define CH_FRONT_LEFT            AV_CH_FRONT_LEFT
377
#define CH_FRONT_RIGHT           AV_CH_FRONT_RIGHT
378
#define CH_FRONT_CENTER          AV_CH_FRONT_CENTER
379
#define CH_LOW_FREQUENCY         AV_CH_LOW_FREQUENCY
380
#define CH_BACK_LEFT             AV_CH_BACK_LEFT
381
#define CH_BACK_RIGHT            AV_CH_BACK_RIGHT
382
#define CH_FRONT_LEFT_OF_CENTER  AV_CH_FRONT_LEFT_OF_CENTER
383
#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER
384
#define CH_BACK_CENTER           AV_CH_BACK_CENTER
385
#define CH_SIDE_LEFT             AV_CH_SIDE_LEFT
386
#define CH_SIDE_RIGHT            AV_CH_SIDE_RIGHT
387
#define CH_TOP_CENTER            AV_CH_TOP_CENTER
388
#define CH_TOP_FRONT_LEFT        AV_CH_TOP_FRONT_LEFT
389
#define CH_TOP_FRONT_CENTER      AV_CH_TOP_FRONT_CENTER
390
#define CH_TOP_FRONT_RIGHT       AV_CH_TOP_FRONT_RIGHT
391
#define CH_TOP_BACK_LEFT         AV_CH_TOP_BACK_LEFT
392
#define CH_TOP_BACK_CENTER       AV_CH_TOP_BACK_CENTER
393
#define CH_TOP_BACK_RIGHT        AV_CH_TOP_BACK_RIGHT
394
#define CH_STEREO_LEFT           AV_CH_STEREO_LEFT
395
#define CH_STEREO_RIGHT          AV_CH_STEREO_RIGHT
396 0d72e7d0 Peter Ross
397 31557166 Justin Ruggles
/** Channel mask value used for AVCodecContext.request_channel_layout
398
    to indicate that the user requests the channel order of the decoder output
399
    to be the native codec channel order. */
400 176a6157 Stefano Sabatini
#define CH_LAYOUT_NATIVE         AV_CH_LAYOUT_NATIVE
401 31557166 Justin Ruggles
402 0d72e7d0 Peter Ross
/* Audio channel convenience macros */
403 176a6157 Stefano Sabatini
#define CH_LAYOUT_MONO           AV_CH_LAYOUT_MONO
404
#define CH_LAYOUT_STEREO         AV_CH_LAYOUT_STEREO
405
#define CH_LAYOUT_2_1            AV_CH_LAYOUT_2_1
406
#define CH_LAYOUT_SURROUND       AV_CH_LAYOUT_SURROUND
407
#define CH_LAYOUT_4POINT0        AV_CH_LAYOUT_4POINT0
408
#define CH_LAYOUT_2_2            AV_CH_LAYOUT_2_2
409
#define CH_LAYOUT_QUAD           AV_CH_LAYOUT_QUAD
410
#define CH_LAYOUT_5POINT0        AV_CH_LAYOUT_5POINT0
411
#define CH_LAYOUT_5POINT1        AV_CH_LAYOUT_5POINT1
412
#define CH_LAYOUT_5POINT0_BACK   AV_CH_LAYOUT_5POINT0_BACK
413
#define CH_LAYOUT_5POINT1_BACK   AV_CH_LAYOUT_5POINT1_BACK
414
#define CH_LAYOUT_7POINT0        AV_CH_LAYOUT_7POINT0
415
#define CH_LAYOUT_7POINT1        AV_CH_LAYOUT_7POINT1
416
#define CH_LAYOUT_7POINT1_WIDE   AV_CH_LAYOUT_7POINT1_WIDE
417
#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX
418
#endif
419 0d72e7d0 Peter Ross
420 de6d9b64 Fabrice Bellard
/* in bytes */
421 8170e5fb Alex Beregszaszi
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
422 de6d9b64 Fabrice Bellard
423 d7425f59 Michael Niedermayer
/**
424 cf713bb8 Michael Niedermayer
 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
425 171b7b91 Alex Converse
 * This is mainly needed because some optimized bitstream readers read
426
 * 32 or 64 bit at once and could read over the end.<br>
427 f5bccd85 Diego Biurrun
 * Note: If the first 23 bits of the additional bytes are not 0, then damaged
428
 * MPEG bitstreams could cause overread and segfault.
429 d7425f59 Michael Niedermayer
 */
430 171b7b91 Alex Converse
#define FF_INPUT_BUFFER_PADDING_SIZE 8
431 d7425f59 Michael Niedermayer
432 0ecca7a4 Michael Niedermayer
/**
433 f5bccd85 Diego Biurrun
 * minimum encoding buffer size
434
 * Used to avoid some checks during header writing.
435 0ecca7a4 Michael Niedermayer
 */
436
#define FF_MIN_BUFFER_SIZE 16384
437
438 47146dfb Michael Niedermayer
439 0e373b95 Michael Niedermayer
/**
440 bafc102b Michael Niedermayer
 * motion estimation type.
441 0e373b95 Michael Niedermayer
 */
442 e4986da9 Juanjo
enum Motion_Est_ID {
443 9b4dd1b8 Michael Niedermayer
    ME_ZERO = 1,    ///< no search, that is use 0,0 vector whenever one is needed
444 e4986da9 Juanjo
    ME_FULL,
445
    ME_LOG,
446
    ME_PHODS,
447 9b4dd1b8 Michael Niedermayer
    ME_EPZS,        ///< enhanced predictive zonal search
448
    ME_X1,          ///< reserved for experiments
449
    ME_HEX,         ///< hexagon based search
450
    ME_UMH,         ///< uneven multi-hexagon search
451
    ME_ITER,        ///< iterative search
452 359bbdab Loren Merritt
    ME_TESA,        ///< transformed exhaustive search algorithm
453 e4986da9 Juanjo
};
454
455 8c3eba7c Michael Niedermayer
enum AVDiscard{
456 f5bccd85 Diego Biurrun
    /* We leave some space between them for extensions (drop some
457
     * keyframes for intra-only or drop just some bidir frames). */
458 8c3eba7c Michael Niedermayer
    AVDISCARD_NONE   =-16, ///< discard nothing
459
    AVDISCARD_DEFAULT=  0, ///< discard useless packets like 0 size packets in avi
460
    AVDISCARD_NONREF =  8, ///< discard all non reference
461
    AVDISCARD_BIDIR  = 16, ///< discard all bidirectional frames
462
    AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
463
    AVDISCARD_ALL    = 48, ///< discard all
464
};
465
466 4ee6a5c1 Michael Niedermayer
enum AVColorPrimaries{
467
    AVCOL_PRI_BT709      =1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
468
    AVCOL_PRI_UNSPECIFIED=2,
469
    AVCOL_PRI_BT470M     =4,
470
    AVCOL_PRI_BT470BG    =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
471
    AVCOL_PRI_SMPTE170M  =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
472
    AVCOL_PRI_SMPTE240M  =7, ///< functionally identical to above
473
    AVCOL_PRI_FILM       =8,
474
    AVCOL_PRI_NB           , ///< Not part of ABI
475
};
476
477
enum AVColorTransferCharacteristic{
478
    AVCOL_TRC_BT709      =1, ///< also ITU-R BT1361
479
    AVCOL_TRC_UNSPECIFIED=2,
480
    AVCOL_TRC_GAMMA22    =4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
481
    AVCOL_TRC_GAMMA28    =5, ///< also ITU-R BT470BG
482
    AVCOL_TRC_NB           , ///< Not part of ABI
483
};
484
485
enum AVColorSpace{
486
    AVCOL_SPC_RGB        =0,
487
    AVCOL_SPC_BT709      =1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
488
    AVCOL_SPC_UNSPECIFIED=2,
489
    AVCOL_SPC_FCC        =4,
490
    AVCOL_SPC_BT470BG    =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
491
    AVCOL_SPC_SMPTE170M  =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
492
    AVCOL_SPC_SMPTE240M  =7,
493
    AVCOL_SPC_NB           , ///< Not part of ABI
494
};
495
496
enum AVColorRange{
497
    AVCOL_RANGE_UNSPECIFIED=0,
498
    AVCOL_RANGE_MPEG       =1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
499
    AVCOL_RANGE_JPEG       =2, ///< the normal     2^n-1   "JPEG" YUV ranges
500
    AVCOL_RANGE_NB           , ///< Not part of ABI
501
};
502
503 580a7465 David Conrad
/**
504
 *  X   X      3 4 X      X are luma samples,
505
 *             1 2        1-6 are possible chroma positions
506
 *  X   X      5 6 X      0 is undefined/unknown position
507
 */
508
enum AVChromaLocation{
509
    AVCHROMA_LOC_UNSPECIFIED=0,
510
    AVCHROMA_LOC_LEFT       =1, ///< mpeg2/4, h264 default
511
    AVCHROMA_LOC_CENTER     =2, ///< mpeg1, jpeg, h263
512
    AVCHROMA_LOC_TOPLEFT    =3, ///< DV
513
    AVCHROMA_LOC_TOP        =4,
514
    AVCHROMA_LOC_BOTTOMLEFT =5,
515
    AVCHROMA_LOC_BOTTOM     =6,
516
    AVCHROMA_LOC_NB           , ///< Not part of ABI
517
};
518
519 23940f14 Justin Ruggles
/**
520
 * LPC analysis type
521
 */
522
enum AVLPCType {
523
    AV_LPC_TYPE_DEFAULT     = -1, ///< use the codec default LPC type
524
    AV_LPC_TYPE_NONE        =  0, ///< do not use LPC prediction or use all zero coefficients
525
    AV_LPC_TYPE_FIXED       =  1, ///< fixed LPC coefficients
526
    AV_LPC_TYPE_LEVINSON    =  2, ///< Levinson-Durbin recursion
527
    AV_LPC_TYPE_CHOLESKY    =  3, ///< Cholesky factorization
528
    AV_LPC_TYPE_NB              , ///< Not part of ABI
529
};
530
531 34b47d7c Justin Ruggles
enum AVAudioServiceType {
532
    AV_AUDIO_SERVICE_TYPE_MAIN              = 0,
533
    AV_AUDIO_SERVICE_TYPE_EFFECTS           = 1,
534
    AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
535
    AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED  = 3,
536
    AV_AUDIO_SERVICE_TYPE_DIALOGUE          = 4,
537
    AV_AUDIO_SERVICE_TYPE_COMMENTARY        = 5,
538
    AV_AUDIO_SERVICE_TYPE_EMERGENCY         = 6,
539
    AV_AUDIO_SERVICE_TYPE_VOICE_OVER        = 7,
540
    AV_AUDIO_SERVICE_TYPE_KARAOKE           = 8,
541
    AV_AUDIO_SERVICE_TYPE_NB                   , ///< Not part of ABI
542
};
543
544 ce980a95 Michael Niedermayer
typedef struct RcOverride{
545
    int start_frame;
546
    int end_frame;
547 f5bccd85 Diego Biurrun
    int qscale; // If this is 0 then quality_factor will be used instead.
548 ce980a95 Michael Niedermayer
    float quality_factor;
549
} RcOverride;
550
551 b0ec9efd Erik Slagter
#define FF_MAX_B_FRAMES 16
552 9dbcbd92 Michael Niedermayer
553 a949d72e Michael Niedermayer
/* encoding support
554 f5bccd85 Diego Biurrun
   These flags can be passed in AVCodecContext.flags before initialization.
555
   Note: Not everything is supported yet.
556 a949d72e Michael Niedermayer
*/
557 de6d9b64 Fabrice Bellard
558 f5bccd85 Diego Biurrun
#define CODEC_FLAG_QSCALE 0x0002  ///< Use fixed qscale.
559
#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / advanced prediction for H.263.
560
#define CODEC_FLAG_QPEL   0x0010  ///< Use qpel MC.
561
#define CODEC_FLAG_GMC    0x0020  ///< Use GMC.
562
#define CODEC_FLAG_MV0    0x0040  ///< Always try a MB with MV=<0,0>.
563
#define CODEC_FLAG_PART   0x0080  ///< Use data partitioning.
564 1ba8f5eb Michael Niedermayer
/**
565
 * The parent program guarantees that the input for B-frames containing
566 f5bccd85 Diego Biurrun
 * streams is not written to for at least s->max_b_frames+1 frames, if
567 1ba8f5eb Michael Niedermayer
 * this is not set the input will be copied.
568
 */
569 8b4c7dbc Michael Niedermayer
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
570 273b0cd3 Diego Biurrun
#define CODEC_FLAG_PASS1           0x0200   ///< Use internal 2pass ratecontrol in first pass mode.
571
#define CODEC_FLAG_PASS2           0x0400   ///< Use internal 2pass ratecontrol in second pass mode.
572
#define CODEC_FLAG_EXTERN_HUFF     0x1000   ///< Use external Huffman table (for MJPEG).
573
#define CODEC_FLAG_GRAY            0x2000   ///< Only decode/encode grayscale.
574
#define CODEC_FLAG_EMU_EDGE        0x4000   ///< Don't draw edges.
575
#define CODEC_FLAG_PSNR            0x8000   ///< error[?] variables will be set during encoding.
576
#define CODEC_FLAG_TRUNCATED       0x00010000 /** Input bitstream might be truncated at a random
577
                                                  location instead of only at frame boundaries. */
578 f5bccd85 Diego Biurrun
#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< Normalize adaptive quantization.
579
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
580
#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< Force low delay.
581
#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< Use alternate scan.
582
#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< Place global headers in extradata instead of every keyframe.
583
#define CODEC_FLAG_BITEXACT       0x00800000 ///< Use only bitexact stuff (except (I)DCT).
584 21e59552 Michael Niedermayer
/* Fx : Flag for h263+ extra options */
585 f5bccd85 Diego Biurrun
#define CODEC_FLAG_AC_PRED        0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction
586
#define CODEC_FLAG_H263P_UMV      0x02000000 ///< unlimited motion vector
587
#define CODEC_FLAG_CBP_RD         0x04000000 ///< Use rate distortion optimization for cbp.
588
#define CODEC_FLAG_QP_RD          0x08000000 ///< Use rate distortion optimization for qp selectioon.
589
#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H.263 alternative inter VLC
590 332f9ac4 Michael Niedermayer
#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
591
#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
592 bb198e19 Michael Niedermayer
#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
593
#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
594 f5bccd85 Diego Biurrun
#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data.
595 f3eec1cf Michael Niedermayer
#define CODEC_FLAG_CLOSED_GOP     0x80000000
596 f5bccd85 Diego Biurrun
#define CODEC_FLAG2_FAST          0x00000001 ///< Allow non spec compliant speedup tricks.
597
#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< Strictly enforce GOP size.
598
#define CODEC_FLAG2_NO_OUTPUT     0x00000004 ///< Skip bitstream encoding.
599
#define CODEC_FLAG2_LOCAL_HEADER  0x00000008 ///< Place global headers at every keyframe instead of in extradata.
600
#define CODEC_FLAG2_BPYRAMID      0x00000010 ///< H.264 allow B-frames to be used as references.
601
#define CODEC_FLAG2_WPRED         0x00000020 ///< H.264 weighted biprediction for B-frames
602 d3075ed5 Panagiotis Issaris
#define CODEC_FLAG2_MIXED_REFS    0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock
603 58f7833e Robert Swain
#define CODEC_FLAG2_8X8DCT        0x00000080 ///< H.264 high profile 8x8 transform
604
#define CODEC_FLAG2_FASTPSKIP     0x00000100 ///< H.264 fast pskip
605
#define CODEC_FLAG2_AUD           0x00000200 ///< H.264 access unit delimiters
606 f5bccd85 Diego Biurrun
#define CODEC_FLAG2_BRDO          0x00000400 ///< B-frame rate-distortion optimization
607
#define CODEC_FLAG2_INTRA_VLC     0x00000800 ///< Use MPEG-2 intra VLC table.
608
#define CODEC_FLAG2_MEMC_ONLY     0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC).
609
#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format.
610
#define CODEC_FLAG2_SKIP_RD       0x00004000 ///< RD optimal MB level residual skipping
611
#define CODEC_FLAG2_CHUNKS        0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
612
#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer.
613 f1618fd9 Paul Kelly
#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible
614 25a42948 Erik Slagter
#define CODEC_FLAG2_MBTREE        0x00040000 ///< Use macroblock tree ratecontrol (x264 only)
615 f3b3b489 Baptiste Coudurier
#define CODEC_FLAG2_PSY           0x00080000 ///< Use psycho visual optimizations.
616
#define CODEC_FLAG2_SSIM          0x00100000 ///< Compute SSIM during encoding, error[] values are undefined.
617 e8c7fca9 Jason Garrett-Glaser
#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 ///< Use periodic insertion of intra blocks instead of keyframes.
618 6fc5b059 Michael Niedermayer
619 21e59552 Michael Niedermayer
/* Unsupported options :
620 bb270c08 Diego Biurrun
 *              Syntax Arithmetic coding (SAC)
621
 *              Reference Picture Selection
622 eafcac6a Diego Biurrun
 *              Independent Segment Decoding */
623 21e59552 Michael Niedermayer
/* /Fx */
624 bf89e6b1 Fabrice Bellard
/* codec capabilities */
625
626 f5bccd85 Diego Biurrun
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback.
627 6814a25c Michael Niedermayer
/**
628 9b489e02 Reimar Döffinger
 * Codec uses get_buffer() for allocating buffers and supports custom allocators.
629
 * If not set, it might not use get_buffer() at all or use operations that
630
 * assume the buffer was allocated by avcodec_default_get_buffer.
631 6814a25c Michael Niedermayer
 */
632
#define CODEC_CAP_DR1             0x0002
633 f5bccd85 Diego Biurrun
/* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */
634 917e06c8 Fabrice Bellard
#define CODEC_CAP_PARSE_ONLY      0x0004
635 d7425f59 Michael Niedermayer
#define CODEC_CAP_TRUNCATED       0x0008
636 f5bccd85 Diego Biurrun
/* Codec can export data for HW decoding (XvMC). */
637 5e5c247a Ivan Kalvachev
#define CODEC_CAP_HWACCEL         0x0010
638 115329f1 Diego Biurrun
/**
639 f5bccd85 Diego Biurrun
 * Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data.
640
 * If this is not set, the codec is guaranteed to never be fed with NULL data.
641 934982c4 Michael Niedermayer
 */
642 6f824977 Michael Niedermayer
#define CODEC_CAP_DELAY           0x0020
643 cef7cc72 Justin Ruggles
/**
644
 * Codec can be fed a final frame with a smaller size.
645
 * This can be used to prevent truncation of the last audio samples.
646
 */
647
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
648 369122dd NVIDIA Corporation
/**
649
 * Codec can export data for HW decoding (VDPAU).
650
 */
651
#define CODEC_CAP_HWACCEL_VDPAU    0x0080
652 d859bb1d Sascha Sommer
/**
653
 * Codec can output multiple frames per AVPacket
654 e9e949cf Michael Niedermayer
 * Normally demuxers return one frame at a time, demuxers which do not do
655
 * are connected to a parser to split what they return into proper frames.
656
 * This flag is reserved to the very rare category of codecs which have a
657
 * bitstream that cannot be split into frames without timeconsuming
658
 * operations like full decoding. Demuxers carring such bitstreams thus
659
 * may return multiple frames in a packet. This has many disadvantages like
660
 * prohibiting stream copy in many cases thus it should only be considered
661
 * as a last resort.
662 d859bb1d Sascha Sommer
 */
663
#define CODEC_CAP_SUBFRAMES        0x0100
664 93ebfeea Janne Grunau
/**
665
 * Codec is experimental and is thus avoided in favor of non experimental
666
 * encoders
667
 */
668
#define CODEC_CAP_EXPERIMENTAL     0x0200
669 62784e37 Benjamin Larsson
/**
670
 * Codec should fill in channel configuration and samplerate instead of container
671
 */
672
#define CODEC_CAP_CHANNEL_CONF     0x0400
673 d375c104 Michael Niedermayer
674 16cfc961 Stefano Sabatini
/**
675
 * Codec is able to deal with negative linesizes
676
 */
677
#define CODEC_CAP_NEG_LINESIZES    0x0800
678 d375c104 Michael Niedermayer
679 b38f008e Alexander Strange
/**
680
 * Codec supports frame-level multithreading.
681
 */
682
#define CODEC_CAP_FRAME_THREADS    0x1000
683 94f7451a Ronald S. Bultje
/**
684
 * Codec supports slice-based (or partition-based) multithreading.
685
 */
686
#define CODEC_CAP_SLICE_THREADS    0x2000
687 bf89e6b1 Fabrice Bellard
688 f5bccd85 Diego Biurrun
//The following defines may change, don't expect compatibility if you use them.
689 8d7ec294 Wolfgang Hesseler
#define MB_TYPE_INTRA4x4   0x0001
690 f5bccd85 Diego Biurrun
#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
691
#define MB_TYPE_INTRA_PCM  0x0004 //FIXME H.264-specific
692 8d7ec294 Wolfgang Hesseler
#define MB_TYPE_16x16      0x0008
693
#define MB_TYPE_16x8       0x0010
694
#define MB_TYPE_8x16       0x0020
695
#define MB_TYPE_8x8        0x0040
696
#define MB_TYPE_INTERLACED 0x0080
697 273b0cd3 Diego Biurrun
#define MB_TYPE_DIRECT2    0x0100 //FIXME
698 8d7ec294 Wolfgang Hesseler
#define MB_TYPE_ACPRED     0x0200
699
#define MB_TYPE_GMC        0x0400
700
#define MB_TYPE_SKIP       0x0800
701
#define MB_TYPE_P0L0       0x1000
702
#define MB_TYPE_P1L0       0x2000
703
#define MB_TYPE_P0L1       0x4000
704
#define MB_TYPE_P1L1       0x8000
705
#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
706
#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
707
#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
708
#define MB_TYPE_QUANT      0x00010000
709
#define MB_TYPE_CBP        0x00020000
710
//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
711
712 fa384dcc Michael Niedermayer
/**
713
 * Pan Scan area.
714 f5bccd85 Diego Biurrun
 * This specifies the area which should be displayed.
715
 * Note there may be multiple such areas for one frame.
716 fa384dcc Michael Niedermayer
 */
717
typedef struct AVPanScan{
718
    /**
719 f5bccd85 Diego Biurrun
     * id
720
     * - encoding: Set by user.
721
     * - decoding: Set by libavcodec.
722 fa384dcc Michael Niedermayer
     */
723
    int id;
724
725
    /**
726
     * width and height in 1/16 pel
727 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
728
     * - decoding: Set by libavcodec.
729 fa384dcc Michael Niedermayer
     */
730
    int width;
731
    int height;
732
733
    /**
734 f5bccd85 Diego Biurrun
     * position of the top left corner in 1/16 pel for up to 3 fields/frames
735
     * - encoding: Set by user.
736
     * - decoding: Set by libavcodec.
737 fa384dcc Michael Niedermayer
     */
738
    int16_t position[3][2];
739
}AVPanScan;
740
741 492cd3a9 Michael Niedermayer
#define FF_COMMON_FRAME \
742 b536d0aa Michael Niedermayer
    /**\
743
     * pointer to the picture planes.\
744 f5bccd85 Diego Biurrun
     * This might be different from the first allocated byte\
745 b536d0aa Michael Niedermayer
     * - encoding: \
746
     * - decoding: \
747
     */\
748 1e491e29 Michael Niedermayer
    uint8_t *data[4];\
749
    int linesize[4];\
750
    /**\
751 f5bccd85 Diego Biurrun
     * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.\
752
     * This isn't used by libavcodec unless the default get/release_buffer() is used.\
753 64863965 Michael Niedermayer
     * - encoding: \
754
     * - decoding: \
755 1e491e29 Michael Niedermayer
     */\
756
    uint8_t *base[4];\
757
    /**\
758
     * 1 -> keyframe, 0-> not\
759 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.\
760
     * - decoding: Set by libavcodec.\
761 1e491e29 Michael Niedermayer
     */\
762
    int key_frame;\
763
\
764
    /**\
765 f5bccd85 Diego Biurrun
     * Picture type of the frame, see ?_TYPE below.\
766
     * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
767
     * - decoding: Set by libavcodec.\
768 1e491e29 Michael Niedermayer
     */\
769 bebe72f4 Stefano Sabatini
    enum AVPictureType pict_type;\
770 1e491e29 Michael Niedermayer
\
771
    /**\
772 c0df9d75 Michael Niedermayer
     * presentation timestamp in time_base units (time when frame should be shown to user)\
773 f5bccd85 Diego Biurrun
     * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.\
774
     * - encoding: MUST be set by user.\
775
     * - decoding: Set by libavcodec.\
776 1e491e29 Michael Niedermayer
     */\
777 be6784dc Richard Hodges
    int64_t pts;\
778 1e491e29 Michael Niedermayer
\
779
    /**\
780 f5bccd85 Diego Biurrun
     * picture number in bitstream order\
781 64863965 Michael Niedermayer
     * - encoding: set by\
782 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
783 1e491e29 Michael Niedermayer
     */\
784
    int coded_picture_number;\
785
    /**\
786 f5bccd85 Diego Biurrun
     * picture number in display order\
787 64863965 Michael Niedermayer
     * - encoding: set by\
788 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
789 1e491e29 Michael Niedermayer
     */\
790
    int display_picture_number;\
791
\
792
    /**\
793 158c7f05 Michael Niedermayer
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
794 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
795
     * - decoding: Set by libavcodec.\
796 1e491e29 Michael Niedermayer
     */\
797 158c7f05 Michael Niedermayer
    int quality; \
798 1e491e29 Michael Niedermayer
\
799
    /**\
800
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
801 f5bccd85 Diego Biurrun
     * Set to INT_MAX if the buffer has not been used yet.\
802 64863965 Michael Niedermayer
     * - encoding: unused\
803 f5bccd85 Diego Biurrun
     * - decoding: MUST be set by get_buffer().\
804 1e491e29 Michael Niedermayer
     */\
805
    int age;\
806
\
807
    /**\
808
     * is this picture used as reference\
809 8474f58e Michael Niedermayer
     * The values for this are the same as the MpegEncContext.picture_structure\
810
     * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.\
811 5fe2a515 Carl Eugen Hoyos
     * Set to 4 for delayed, non-reference frames.\
812 64863965 Michael Niedermayer
     * - encoding: unused\
813 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec. (before get_buffer() call)).\
814 1e491e29 Michael Niedermayer
     */\
815
    int reference;\
816
\
817
    /**\
818
     * QP table\
819 64863965 Michael Niedermayer
     * - encoding: unused\
820 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
821 1e491e29 Michael Niedermayer
     */\
822
    int8_t *qscale_table;\
823
    /**\
824
     * QP store stride\
825 64863965 Michael Niedermayer
     * - encoding: unused\
826 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
827 1e491e29 Michael Niedermayer
     */\
828
    int qstride;\
829
\
830
    /**\
831 f5bccd85 Diego Biurrun
     * mbskip_table[mb]>=1 if MB didn't change\
832 1e491e29 Michael Niedermayer
     * stride= mb_width = (width+15)>>4\
833 64863965 Michael Niedermayer
     * - encoding: unused\
834 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
835 1e491e29 Michael Niedermayer
     */\
836
    uint8_t *mbskip_table;\
837
\
838
    /**\
839 f5bccd85 Diego Biurrun
     * motion vector table\
840 61436073 Michael Niedermayer
     * @code\
841
     * example:\
842
     * int mv_sample_log2= 4 - motion_subsample_log2;\
843
     * int mb_width= (width+15)>>4;\
844
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
845
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
846
     * @endcode\
847 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
848
     * - decoding: Set by libavcodec.\
849 8d7ec294 Wolfgang Hesseler
     */\
850
    int16_t (*motion_val[2])[2];\
851
\
852
    /**\
853 f5bccd85 Diego Biurrun
     * macroblock type table\
854 8d7ec294 Wolfgang Hesseler
     * mb_type_base + mb_width + 2\
855 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
856
     * - decoding: Set by libavcodec.\
857 8d7ec294 Wolfgang Hesseler
     */\
858
    uint32_t *mb_type;\
859
\
860
    /**\
861 f0b77c69 Michael Niedermayer
     * log2 of the size of the block which a single vector in motion_val represents: \
862
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
863 8d7ec294 Wolfgang Hesseler
     * - encoding: unused\
864 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
865 8d7ec294 Wolfgang Hesseler
     */\
866
    uint8_t motion_subsample_log2;\
867
\
868
    /**\
869 1e491e29 Michael Niedermayer
     * for some private data of the user\
870 64863965 Michael Niedermayer
     * - encoding: unused\
871 f5bccd85 Diego Biurrun
     * - decoding: Set by user.\
872 1e491e29 Michael Niedermayer
     */\
873
    void *opaque;\
874 140cb663 Michael Niedermayer
\
875
    /**\
876
     * error\
877 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.\
878 64863965 Michael Niedermayer
     * - decoding: unused\
879 140cb663 Michael Niedermayer
     */\
880
    uint64_t error[4];\
881 4e00e76b Michael Niedermayer
\
882
    /**\
883 f5bccd85 Diego Biurrun
     * type of the buffer (to keep track of who has to deallocate data[*])\
884
     * - encoding: Set by the one who allocates it.\
885
     * - decoding: Set by the one who allocates it.\
886
     * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.\
887 4e00e76b Michael Niedermayer
     */\
888
    int type;\
889 2ec23b6d Michael Niedermayer
    \
890
    /**\
891 f5bccd85 Diego Biurrun
     * When decoding, this signals how much the picture must be delayed.\
892 2ec23b6d Michael Niedermayer
     * extra_delay = repeat_pict / (2*fps)\
893 64863965 Michael Niedermayer
     * - encoding: unused\
894 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
895 2ec23b6d Michael Niedermayer
     */\
896 0426af31 Michael Niedermayer
    int repeat_pict;\
897
    \
898
    /**\
899
     * \
900
     */\
901
    int qscale_type;\
902 2744ca9a Roman Shaposhnik
    \
903
    /**\
904
     * The content of the picture is interlaced.\
905 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
906
     * - decoding: Set by libavcodec. (default 0)\
907 2744ca9a Roman Shaposhnik
     */\
908
    int interlaced_frame;\
909
    \
910
    /**\
911 f5bccd85 Diego Biurrun
     * If the content is interlaced, is top field displayed first.\
912
     * - encoding: Set by user.\
913
     * - decoding: Set by libavcodec.\
914 2744ca9a Roman Shaposhnik
     */\
915 9dad924e Michael Niedermayer
    int top_field_first;\
916 fa384dcc Michael Niedermayer
    \
917
    /**\
918
     * Pan scan.\
919 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
920
     * - decoding: Set by libavcodec.\
921 fa384dcc Michael Niedermayer
     */\
922
    AVPanScan *pan_scan;\
923 2a2bbcb0 Mike Melanson
    \
924
    /**\
925 f5bccd85 Diego Biurrun
     * Tell user application that palette has changed from previous frame.\
926 2a2bbcb0 Mike Melanson
     * - encoding: ??? (no palette-enabled encoder yet)\
927 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec. (default 0).\
928 2a2bbcb0 Mike Melanson
     */\
929
    int palette_has_changed;\
930 074c4ca7 Roberto Togni
    \
931
    /**\
932 f5bccd85 Diego Biurrun
     * codec suggestion on buffer type if != 0\
933 074c4ca7 Roberto Togni
     * - encoding: unused\
934 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec. (before get_buffer() call)).\
935 074c4ca7 Roberto Togni
     */\
936
    int buffer_hints;\
937 8289c6fa Wolfgang Hesseler
\
938
    /**\
939 f5bccd85 Diego Biurrun
     * DCT coefficients\
940 8289c6fa Wolfgang Hesseler
     * - encoding: unused\
941 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
942 8289c6fa Wolfgang Hesseler
     */\
943
    short *dct_coeff;\
944 a4d36c11 Michael Niedermayer
\
945
    /**\
946 58184187 Benoit Fouet
     * motion reference frame index\
947
     * the order in which these are stored can depend on the codec.\
948 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
949
     * - decoding: Set by libavcodec.\
950 a4d36c11 Michael Niedermayer
     */\
951 79de84f2 Michael Niedermayer
    int8_t *ref_index[2];\
952
\
953
    /**\
954 421167b0 Stefano Sabatini
     * reordered opaque 64bit (generally an integer or a double precision float\
955 e75229fa Michael Niedermayer
     * PTS but can be anything). \
956
     * The user sets AVCodecContext.reordered_opaque to represent the input at\
957 421167b0 Stefano Sabatini
     * that time,\
958
     * the decoder reorders values as needed and sets AVFrame.reordered_opaque\
959 e75229fa Michael Niedermayer
     * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque \
960 81c623fa Michael Niedermayer
     * @deprecated in favor of pkt_pts\
961 79de84f2 Michael Niedermayer
     * - encoding: unused\
962
     * - decoding: Read by user.\
963
     */\
964
    int64_t reordered_opaque;\
965 68e5d523 Gwenole Beauchesne
\
966
    /**\
967
     * hardware accelerator private data (FFmpeg allocated)\
968
     * - encoding: unused\
969
     * - decoding: Set by libavcodec\
970
     */\
971 952e2083 Gwenole Beauchesne
    void *hwaccel_picture_private;\
972 393cbb96 Michael Niedermayer
\
973
    /**\
974
     * reordered pts from the last AVPacket that has been input into the decoder\
975
     * - encoding: unused\
976
     * - decoding: Read by user.\
977
     */\
978
    int64_t pkt_pts;\
979 1919feaf Michael Niedermayer
\
980
    /**\
981
     * dts from the last AVPacket that has been input into the decoder\
982
     * - encoding: unused\
983
     * - decoding: Read by user.\
984
     */\
985
    int64_t pkt_dts;\
986 76ad67ca Nicolas George
\
987
    /**\
988 b38f008e Alexander Strange
     * the AVCodecContext which ff_thread_get_buffer() was last called on\
989
     * - encoding: Set by libavcodec.\
990
     * - decoding: Set by libavcodec.\
991
     */\
992
    struct AVCodecContext *owner;\
993
\
994
    /**\
995
     * used by multithreading to store frame-specific info\
996
     * - encoding: Set by libavcodec.\
997
     * - decoding: Set by libavcodec.\
998
     */\
999
    void *thread_opaque;\
1000
\
1001
    /**\
1002 76ad67ca Nicolas George
     * frame timestamp estimated using various heuristics, in stream time base\
1003
     * - encoding: unused\
1004
     * - decoding: set by libavcodec, read by user.\
1005
     */\
1006
    int64_t best_effort_timestamp;\
1007 1ba57272 Stefano Sabatini
\
1008
    /**\
1009
     * reordered pos from the last AVPacket that has been input into the decoder\
1010
     * - encoding: unused\
1011
     * - decoding: Read by user.\
1012
     */\
1013
    int64_t pkt_pos;\
1014 77e9dee8 Stefano Sabatini
\
1015
    /**\
1016
     * reordered sample aspect ratio for the video frame, 0/1 if unknown\unspecified
1017
     * - encoding: unused\
1018
     * - decoding: Read by user.\
1019
     */\
1020
    AVRational sample_aspect_ratio;\
1021 79de84f2 Michael Niedermayer
1022 2ec23b6d Michael Niedermayer
1023 bb270c08 Diego Biurrun
#define FF_QSCALE_TYPE_MPEG1 0
1024
#define FF_QSCALE_TYPE_MPEG2 1
1025
#define FF_QSCALE_TYPE_H264  2
1026 800274f8 Reimar Döffinger
#define FF_QSCALE_TYPE_VP56  3
1027 4e00e76b Michael Niedermayer
1028
#define FF_BUFFER_TYPE_INTERNAL 1
1029 f5bccd85 Diego Biurrun
#define FF_BUFFER_TYPE_USER     2 ///< direct rendering buffers (image is (de)allocated by user)
1030
#define FF_BUFFER_TYPE_SHARED   4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
1031
#define FF_BUFFER_TYPE_COPY     8 ///< Just a (modified) copy of some other buffer, don't deallocate anything.
1032 4e00e76b Michael Niedermayer
1033 bebe72f4 Stefano Sabatini
#if FF_API_OLD_FF_PICT_TYPES
1034
/* DEPRECATED, directly use the AV_PICTURE_TYPE_* enum values */
1035
#define FF_I_TYPE  AV_PICTURE_TYPE_I  ///< Intra
1036
#define FF_P_TYPE  AV_PICTURE_TYPE_P  ///< Predicted
1037
#define FF_B_TYPE  AV_PICTURE_TYPE_B  ///< Bi-dir predicted
1038
#define FF_S_TYPE  AV_PICTURE_TYPE_S  ///< S(GMC)-VOP MPEG4
1039
#define FF_SI_TYPE AV_PICTURE_TYPE_SI ///< Switching Intra
1040
#define FF_SP_TYPE AV_PICTURE_TYPE_SP ///< Switching Predicted
1041
#define FF_BI_TYPE AV_PICTURE_TYPE_BI
1042
#endif
1043 1e491e29 Michael Niedermayer
1044 f5bccd85 Diego Biurrun
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore).
1045
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
1046
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
1047
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
1048 074c4ca7 Roberto Togni
1049 4de339e2 Kostya Shishkov
enum AVPacketSideDataType {
1050
    AV_PKT_DATA_PALETTE,
1051
};
1052
1053 18c915ee Thilo Borgmann
typedef struct AVPacket {
1054
    /**
1055 7b356d39 Robert Swain
     * Presentation timestamp in AVStream->time_base units; the time at which
1056
     * the decompressed packet will be presented to the user.
1057 18c915ee Thilo Borgmann
     * Can be AV_NOPTS_VALUE if it is not stored in the file.
1058
     * pts MUST be larger or equal to dts as presentation cannot happen before
1059
     * decompression, unless one wants to view hex dumps. Some formats misuse
1060
     * the terms dts and pts/cts to mean something different. Such timestamps
1061
     * must be converted to true pts/dts before they are stored in AVPacket.
1062
     */
1063
    int64_t pts;
1064
    /**
1065 7b356d39 Robert Swain
     * Decompression timestamp in AVStream->time_base units; the time at which
1066
     * the packet is decompressed.
1067 18c915ee Thilo Borgmann
     * Can be AV_NOPTS_VALUE if it is not stored in the file.
1068
     */
1069
    int64_t dts;
1070
    uint8_t *data;
1071
    int   size;
1072
    int   stream_index;
1073
    int   flags;
1074
    /**
1075 4de339e2 Kostya Shishkov
     * Additional packet data that can be provided by the container.
1076
     * Packet can contain several types of side information.
1077
     */
1078
    struct {
1079
        uint8_t *data;
1080
        int      size;
1081
        enum AVPacketSideDataType type;
1082
    } *side_data;
1083
    int side_data_elems;
1084
1085
    /**
1086 7b356d39 Robert Swain
     * Duration of this packet in AVStream->time_base units, 0 if unknown.
1087 18c915ee Thilo Borgmann
     * Equals next_pts - this_pts in presentation order.
1088
     */
1089
    int   duration;
1090
    void  (*destruct)(struct AVPacket *);
1091
    void  *priv;
1092
    int64_t pos;                            ///< byte position in stream, -1 if unknown
1093
1094
    /**
1095 7b356d39 Robert Swain
     * Time difference in AVStream->time_base units from the pts of this
1096 18c915ee Thilo Borgmann
     * packet to the point at which the output from the decoder has converged
1097
     * independent from the availability of previous frames. That is, the
1098
     * frames are virtually identical no matter if decoding started from
1099
     * the very first frame or from this keyframe.
1100
     * Is AV_NOPTS_VALUE if unknown.
1101
     * This field is not the display duration of the current packet.
1102 8ee82f40 Aurelien Jacobs
     * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
1103
     * set.
1104 18c915ee Thilo Borgmann
     *
1105
     * The purpose of this field is to allow seeking in streams that have no
1106
     * keyframes in the conventional sense. It corresponds to the
1107
     * recovery point SEI in H.264 and match_time_delta in NUT. It is also
1108
     * essential for some types of subtitle streams to ensure that all
1109
     * subtitles are correctly displayed after seeking.
1110
     */
1111
    int64_t convergence_duration;
1112
} AVPacket;
1113 8f3f2e06 Reimar Döffinger
#define AV_PKT_FLAG_KEY   0x0001
1114 18c915ee Thilo Borgmann
1115 0da71265 Michael Niedermayer
/**
1116
 * Audio Video Frame.
1117 ba66ae94 Michael Niedermayer
 * New fields can be added to the end of FF_COMMON_FRAME with minor version
1118
 * bumps.
1119 8bfb108b Diego Biurrun
 * Removal, reordering and changes to existing fields require a major
1120 ba66ae94 Michael Niedermayer
 * version bump. No fields should be added into AVFrame before or after
1121
 * FF_COMMON_FRAME!
1122 8bfb108b Diego Biurrun
 * sizeof(AVFrame) must not be used outside libav*.
1123 0da71265 Michael Niedermayer
 */
1124 492cd3a9 Michael Niedermayer
typedef struct AVFrame {
1125
    FF_COMMON_FRAME
1126
} AVFrame;
1127 1e491e29 Michael Niedermayer
1128 d33c949c Michael Niedermayer
/**
1129 252f17e2 Michael Niedermayer
 * main external API structure.
1130
 * New fields can be added to the end with minor version bumps.
1131 8bfb108b Diego Biurrun
 * Removal, reordering and changes to existing fields require a major
1132 252f17e2 Michael Niedermayer
 * version bump.
1133 8bfb108b Diego Biurrun
 * sizeof(AVCodecContext) must not be used outside libav*.
1134 d33c949c Michael Niedermayer
 */
1135 de6d9b64 Fabrice Bellard
typedef struct AVCodecContext {
1136 b71901e6 Michael Niedermayer
    /**
1137 f5bccd85 Diego Biurrun
     * information on struct for av_log
1138 bc874dae Michel Bardiaux
     * - set by avcodec_alloc_context
1139
     */
1140 d42a814e Panagiotis Issaris
    const AVClass *av_class;
1141 bc874dae Michel Bardiaux
    /**
1142 f5bccd85 Diego Biurrun
     * the average bitrate
1143
     * - encoding: Set by user; unused for constant quantizer encoding.
1144
     * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
1145 b71901e6 Michael Niedermayer
     */
1146 de6d9b64 Fabrice Bellard
    int bit_rate;
1147 b71901e6 Michael Niedermayer
1148
    /**
1149 64863965 Michael Niedermayer
     * number of bits the bitstream is allowed to diverge from the reference.
1150 b71901e6 Michael Niedermayer
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
1151 f5bccd85 Diego Biurrun
     * - encoding: Set by user; unused for constant quantizer encoding.
1152 64863965 Michael Niedermayer
     * - decoding: unused
1153 b71901e6 Michael Niedermayer
     */
1154 115329f1 Diego Biurrun
    int bit_rate_tolerance;
1155 b71901e6 Michael Niedermayer
1156
    /**
1157 64863965 Michael Niedermayer
     * CODEC_FLAG_*.
1158 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1159
     * - decoding: Set by user.
1160 b71901e6 Michael Niedermayer
     */
1161 de6d9b64 Fabrice Bellard
    int flags;
1162 b71901e6 Michael Niedermayer
1163
    /**
1164 f5bccd85 Diego Biurrun
     * Some codecs need additional format info. It is stored here.
1165
     * If any muxer uses this then ALL demuxers/parsers AND encoders for the
1166
     * specific codec MUST set it correctly otherwise stream copy breaks.
1167
     * In general use of this field by muxers is not recommanded.
1168
     * - encoding: Set by libavcodec.
1169
     * - decoding: Set by libavcodec. (FIXME: Is this OK?)
1170 b71901e6 Michael Niedermayer
     */
1171
    int sub_id;
1172
1173
    /**
1174 f5bccd85 Diego Biurrun
     * Motion estimation algorithm used for video coding.
1175 58f7833e Robert Swain
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
1176 89223ef6 Baptiste Coudurier
     * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific]
1177 64863965 Michael Niedermayer
     * - encoding: MUST be set by user.
1178
     * - decoding: unused
1179 b71901e6 Michael Niedermayer
     */
1180
    int me_method;
1181
1182
    /**
1183 f5bccd85 Diego Biurrun
     * some codecs need / can use extradata like Huffman tables.
1184
     * mjpeg: Huffman tables
1185 b71901e6 Michael Niedermayer
     * rv10: additional flags
1186 b704e742 Michael Niedermayer
     * mpeg4: global headers (they can be in the bitstream or here)
1187 f5bccd85 Diego Biurrun
     * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
1188
     * than extradata_size to avoid prolems if it is read with the bitstream reader.
1189
     * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
1190
     * - encoding: Set/allocated/freed by libavcodec.
1191
     * - decoding: Set/allocated/freed by user.
1192 b71901e6 Michael Niedermayer
     */
1193 58f2a4b0 Baptiste Coudurier
    uint8_t *extradata;
1194 e84c31dc Arpi
    int extradata_size;
1195 115329f1 Diego Biurrun
1196 b71901e6 Michael Niedermayer
    /**
1197 f5bccd85 Diego Biurrun
     * This is the fundamental unit of time (in seconds) in terms
1198
     * of which frame timestamps are represented. For fixed-fps content,
1199 5b28c8c3 Michael Niedermayer
     * timebase should be 1/framerate and timestamp increments should be
1200
     * identically 1.
1201 f5bccd85 Diego Biurrun
     * - encoding: MUST be set by user.
1202
     * - decoding: Set by libavcodec.
1203 b71901e6 Michael Niedermayer
     */
1204 c0df9d75 Michael Niedermayer
    AVRational time_base;
1205 115329f1 Diego Biurrun
1206 5b28c8c3 Michael Niedermayer
    /* video only */
1207 14bea432 Michael Niedermayer
    /**
1208 21adafec Michael Niedermayer
     * picture width / height.
1209 115329f1 Diego Biurrun
     * - encoding: MUST be set by user.
1210 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.
1211
     * Note: For compatibility it is possible to set this instead of
1212
     * coded_width/height before decoding.
1213 b71901e6 Michael Niedermayer
     */
1214 de6d9b64 Fabrice Bellard
    int width, height;
1215 115329f1 Diego Biurrun
1216 e769f053 Alex Beregszaszi
#define FF_ASPECT_EXTENDED 15
1217 b71901e6 Michael Niedermayer
1218
    /**
1219 f5bccd85 Diego Biurrun
     * the number of pictures in a group of pictures, or 0 for intra_only
1220
     * - encoding: Set by user.
1221 64863965 Michael Niedermayer
     * - decoding: unused
1222 b71901e6 Michael Niedermayer
     */
1223
    int gop_size;
1224
1225
    /**
1226 f5bccd85 Diego Biurrun
     * Pixel format, see PIX_FMT_xxx.
1227 c1bdc930 Tomas Härdin
     * May be set by the demuxer if known from headers.
1228
     * May be overriden by the decoder if it knows better.
1229 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1230 c1bdc930 Tomas Härdin
     * - decoding: Set by user if known, overridden by libavcodec if known
1231 b71901e6 Michael Niedermayer
     */
1232 e4eadb4b Michael Niedermayer
    enum PixelFormat pix_fmt;
1233 115329f1 Diego Biurrun
1234 b71901e6 Michael Niedermayer
    /**
1235 f5bccd85 Diego Biurrun
     * If non NULL, 'draw_horiz_band' is called by the libavcodec
1236
     * decoder to draw a horizontal band. It improves cache usage. Not
1237 b71901e6 Michael Niedermayer
     * all codecs can do that. You must check the codec capabilities
1238 f5bccd85 Diego Biurrun
     * beforehand.
1239 b38f008e Alexander Strange
     * When multithreading is used, it may be called from multiple threads
1240
     * at the same time; threads might draw different parts of the same AVFrame,
1241
     * or multiple AVFrames, and there is no guarantee that slices will be drawn
1242
     * in order.
1243 24b1583a Ivan Kalvachev
     * The function is also used by hardware acceleration APIs.
1244
     * It is called at least once during frame decoding to pass
1245
     * the data needed for hardware render.
1246
     * In that mode instead of pixel data, AVFrame points to
1247
     * a structure specific to the acceleration API. The application
1248
     * reads the structure and can change some fields to indicate progress
1249
     * or mark state.
1250 64863965 Michael Niedermayer
     * - encoding: unused
1251 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1252 3bb07d61 Michael Niedermayer
     * @param height the height of the slice
1253
     * @param y the y position of the slice
1254
     * @param type 1->top field, 2->bottom field, 3->frame
1255
     * @param offset offset into the AVFrame.data from which the slice should be read
1256 b71901e6 Michael Niedermayer
     */
1257 bf89e6b1 Fabrice Bellard
    void (*draw_horiz_band)(struct AVCodecContext *s,
1258 da64ecc3 Drew Hess
                            const AVFrame *src, int offset[4],
1259 3bb07d61 Michael Niedermayer
                            int y, int type, int height);
1260 bf89e6b1 Fabrice Bellard
1261 de6d9b64 Fabrice Bellard
    /* audio only */
1262 f5bccd85 Diego Biurrun
    int sample_rate; ///< samples per second
1263 5fcc4a23 Stefano Sabatini
    int channels;    ///< number of audio channels
1264 a3a5f4d6 Michael Niedermayer
1265
    /**
1266 f5bccd85 Diego Biurrun
     * audio sample format
1267
     * - encoding: Set by user.
1268
     * - decoding: Set by libavcodec.
1269 a3a5f4d6 Michael Niedermayer
     */
1270 5d6e4c16 Stefano Sabatini
    enum AVSampleFormat sample_fmt;  ///< sample format
1271 de6d9b64 Fabrice Bellard
1272 f5bccd85 Diego Biurrun
    /* The following data should not be initialized. */
1273 718b27a7 Michael Niedermayer
    /**
1274 f5bccd85 Diego Biurrun
     * Samples per packet, initialized when calling 'init'.
1275 718b27a7 Michael Niedermayer
     */
1276
    int frame_size;
1277 115329f1 Diego Biurrun
    int frame_number;   ///< audio or video frame number
1278
1279 b71901e6 Michael Niedermayer
    /**
1280 f5bccd85 Diego Biurrun
     * Number of frames the decoded output will be delayed relative to
1281 64863965 Michael Niedermayer
     * the encoded input.
1282 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.
1283 64863965 Michael Niedermayer
     * - decoding: unused
1284 b71901e6 Michael Niedermayer
     */
1285
    int delay;
1286 115329f1 Diego Biurrun
1287 64863965 Michael Niedermayer
    /* - encoding parameters */
1288
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
1289 115329f1 Diego Biurrun
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
1290
1291 b71901e6 Michael Niedermayer
    /**
1292 f5bccd85 Diego Biurrun
     * minimum quantizer
1293
     * - encoding: Set by user.
1294 64863965 Michael Niedermayer
     * - decoding: unused
1295 b71901e6 Michael Niedermayer
     */
1296
    int qmin;
1297
1298
    /**
1299 f5bccd85 Diego Biurrun
     * maximum quantizer
1300
     * - encoding: Set by user.
1301 64863965 Michael Niedermayer
     * - decoding: unused
1302 b71901e6 Michael Niedermayer
     */
1303
    int qmax;
1304
1305
    /**
1306 f5bccd85 Diego Biurrun
     * maximum quantizer difference between frames
1307
     * - encoding: Set by user.
1308 64863965 Michael Niedermayer
     * - decoding: unused
1309 b71901e6 Michael Niedermayer
     */
1310
    int max_qdiff;
1311
1312
    /**
1313 f5bccd85 Diego Biurrun
     * maximum number of B-frames between non-B-frames
1314
     * Note: The output will be delayed by max_b_frames+1 relative to the input.
1315
     * - encoding: Set by user.
1316 64863965 Michael Niedermayer
     * - decoding: unused
1317 b71901e6 Michael Niedermayer
     */
1318
    int max_b_frames;
1319
1320
    /**
1321 f5bccd85 Diego Biurrun
     * qscale factor between IP and B-frames
1322 662e5411 tripp
     * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
1323
     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
1324 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1325 64863965 Michael Niedermayer
     * - decoding: unused
1326 b71901e6 Michael Niedermayer
     */
1327
    float b_quant_factor;
1328 115329f1 Diego Biurrun
1329 b71901e6 Michael Niedermayer
    /** obsolete FIXME remove */
1330
    int rc_strategy;
1331 64b7c5b6 Michael Niedermayer
#define FF_RC_STRATEGY_XVID 1
1332
1333 8b4c7dbc Michael Niedermayer
    int b_frame_strategy;
1334 9dbcbd92 Michael Niedermayer
1335 de6d9b64 Fabrice Bellard
    struct AVCodec *codec;
1336 115329f1 Diego Biurrun
1337 de6d9b64 Fabrice Bellard
    void *priv_data;
1338
1339 bb628dae Diego Biurrun
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
1340 f5bccd85 Diego Biurrun
                            /* do its best to deliver a chunk with size     */
1341 644d98a4 Juanjo
                            /* below rtp_payload_size, the chunk will start */
1342 f5bccd85 Diego Biurrun
                            /* with a start code on some codecs like H.263. */
1343 644d98a4 Juanjo
                            /* This doesn't take account of any particular  */
1344 f5bccd85 Diego Biurrun
                            /* headers inside the transmitted RTP payload.  */
1345 81401c1f Juanjo
1346 115329f1 Diego Biurrun
1347 f5bccd85 Diego Biurrun
    /* The RTP callback: This function is called    */
1348
    /* every time the encoder has a packet to send. */
1349
    /* It depends on the encoder if the data starts */
1350
    /* with a Start Code (it should). H.263 does.   */
1351
    /* mb_nb contains the number of macroblocks     */
1352
    /* encoded in the RTP payload.                  */
1353 115329f1 Diego Biurrun
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
1354 81401c1f Juanjo
1355 098eefe1 Michael Niedermayer
    /* statistics, used for 2-pass encoding */
1356
    int mv_bits;
1357
    int header_bits;
1358
    int i_tex_bits;
1359
    int p_tex_bits;
1360
    int i_count;
1361
    int p_count;
1362
    int skip_count;
1363 b71901e6 Michael Niedermayer
    int misc_bits;
1364 115329f1 Diego Biurrun
1365 b71901e6 Michael Niedermayer
    /**
1366 f5bccd85 Diego Biurrun
     * number of bits used for the previously encoded frame
1367
     * - encoding: Set by libavcodec.
1368 7004ffb3 Michael Niedermayer
     * - decoding: unused
1369 b71901e6 Michael Niedermayer
     */
1370 098eefe1 Michael Niedermayer
    int frame_bits;
1371 7004ffb3 Michael Niedermayer
1372 b71901e6 Michael Niedermayer
    /**
1373 f5bccd85 Diego Biurrun
     * Private data of the user, can be used to carry app specific stuff.
1374
     * - encoding: Set by user.
1375
     * - decoding: Set by user.
1376 b71901e6 Michael Niedermayer
     */
1377
    void *opaque;
1378
1379 de6d9b64 Fabrice Bellard
    char codec_name[32];
1380 72415b2a Stefano Sabatini
    enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
1381 4a663d80 Philip Gladstone
    enum CodecID codec_id; /* see CODEC_ID_xxx */
1382 115329f1 Diego Biurrun
1383 7004ffb3 Michael Niedermayer
    /**
1384
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1385 f5bccd85 Diego Biurrun
     * This is used to work around some encoder bugs.
1386
     * A demuxer should set this to what is stored in the field used to identify the codec.
1387
     * If there are multiple such fields in a container then the demuxer should choose the one
1388
     * which maximizes the information about the used codec.
1389
     * If the codec tag field in a container is larger then 32 bits then the demuxer should
1390
     * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
1391 47bbf8a7 Michael Niedermayer
     * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
1392 f5bccd85 Diego Biurrun
     * first.
1393
     * - encoding: Set by user, if not then the default based on codec_id will be used.
1394
     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
1395 7004ffb3 Michael Niedermayer
     */
1396
    unsigned int codec_tag;
1397 115329f1 Diego Biurrun
1398 b71901e6 Michael Niedermayer
    /**
1399 f5bccd85 Diego Biurrun
     * Work around bugs in encoders which sometimes cannot be detected automatically.
1400
     * - encoding: Set by user
1401
     * - decoding: Set by user
1402 b71901e6 Michael Niedermayer
     */
1403
    int workaround_bugs;
1404 64863965 Michael Niedermayer
#define FF_BUG_AUTODETECT       1  ///< autodetection
1405 4d2858de Michael Niedermayer
#define FF_BUG_OLD_MSMPEG4      2
1406
#define FF_BUG_XVID_ILACE       4
1407
#define FF_BUG_UMP4             8
1408
#define FF_BUG_NO_PADDING       16
1409 3116cb14 Michael Niedermayer
#define FF_BUG_AMV              32
1410 f5bccd85 Diego Biurrun
#define FF_BUG_AC_VLC           0  ///< Will be removed, libavcodec can now handle these non-compliant files by default.
1411 03e93d35 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA      64
1412 db794953 Michael Niedermayer
#define FF_BUG_STD_QPEL         128
1413 36df8805 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA2     256
1414 c40c3482 Michael Niedermayer
#define FF_BUG_DIRECT_BLOCKSIZE 512
1415 1c6dcb0f Michael Niedermayer
#define FF_BUG_EDGE             1024
1416 b44bdf7e Michael Niedermayer
#define FF_BUG_HPEL_CHROMA      2048
1417 4ccde216 Michael Niedermayer
#define FF_BUG_DC_CLIP          4096
1418 f5bccd85 Diego Biurrun
#define FF_BUG_MS               8192 ///< Work around various bugs in Microsoft's broken decoders.
1419 3566042a Michael Niedermayer
#define FF_BUG_TRUNCATED       16384
1420 f5bccd85 Diego Biurrun
//#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%.
1421 115329f1 Diego Biurrun
1422 b71901e6 Michael Niedermayer
    /**
1423 f5bccd85 Diego Biurrun
     * luma single coefficient elimination threshold
1424
     * - encoding: Set by user.
1425 64863965 Michael Niedermayer
     * - decoding: unused
1426 b71901e6 Michael Niedermayer
     */
1427 1f6b6e50 Michael Niedermayer
    int luma_elim_threshold;
1428 115329f1 Diego Biurrun
1429 b71901e6 Michael Niedermayer
    /**
1430 f5bccd85 Diego Biurrun
     * chroma single coeff elimination threshold
1431
     * - encoding: Set by user.
1432 64863965 Michael Niedermayer
     * - decoding: unused
1433 b71901e6 Michael Niedermayer
     */
1434 1f6b6e50 Michael Niedermayer
    int chroma_elim_threshold;
1435 115329f1 Diego Biurrun
1436 b71901e6 Michael Niedermayer
    /**
1437 f5bccd85 Diego Biurrun
     * strictly follow the standard (MPEG4, ...).
1438
     * - encoding: Set by user.
1439 5771b2c3 Michael Niedermayer
     * - decoding: Set by user.
1440
     * Setting this to STRICT or higher means the encoder and decoder will
1441 2d525ef4 Rodney Baker
     * generally do stupid things, whereas setting it to unofficial or lower
1442 538c0e13 Rodney Baker
     * will mean the encoder might produce output that is not supported by all
1443
     * spec-compliant decoders. Decoders don't differentiate between normal,
1444 2d525ef4 Rodney Baker
     * unofficial and experimental (that is, they always try to decode things
1445 538c0e13 Rodney Baker
     * when they can) unless they are explicitly asked to behave stupidly
1446 5771b2c3 Michael Niedermayer
     * (=strictly conform to the specs)
1447 b71901e6 Michael Niedermayer
     */
1448
    int strict_std_compliance;
1449 538c0e13 Rodney Baker
#define FF_COMPLIANCE_VERY_STRICT   2 ///< Strictly conform to an older more strict version of the spec or reference software.
1450 f5bccd85 Diego Biurrun
#define FF_COMPLIANCE_STRICT        1 ///< Strictly conform to all the things in the spec no matter what consequences.
1451 9cd81798 Michael Niedermayer
#define FF_COMPLIANCE_NORMAL        0
1452 2d525ef4 Rodney Baker
#define FF_COMPLIANCE_UNOFFICIAL   -1 ///< Allow unofficial extensions
1453 f5bccd85 Diego Biurrun
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
1454 9cd81798 Michael Niedermayer
1455 b71901e6 Michael Niedermayer
    /**
1456 f5bccd85 Diego Biurrun
     * qscale offset between IP and B-frames
1457
     * - encoding: Set by user.
1458 64863965 Michael Niedermayer
     * - decoding: unused
1459 b71901e6 Michael Niedermayer
     */
1460
    float b_quant_offset;
1461 115329f1 Diego Biurrun
1462 b71901e6 Michael Niedermayer
    /**
1463 047599a4 Michael Niedermayer
     * Error recognization; higher values will detect more errors but may
1464 f5bccd85 Diego Biurrun
     * misdetect some more or less valid parts as errors.
1465 64863965 Michael Niedermayer
     * - encoding: unused
1466 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1467 b71901e6 Michael Niedermayer
     */
1468 047599a4 Michael Niedermayer
    int error_recognition;
1469 1471c6c2 Diego Biurrun
#define FF_ER_CAREFUL         1
1470 ce3bcaed Michael Niedermayer
#define FF_ER_COMPLIANT       2
1471
#define FF_ER_AGGRESSIVE      3
1472
#define FF_ER_VERY_AGGRESSIVE 4
1473 115329f1 Diego Biurrun
1474 6b72ac63 Michael Niedermayer
    /**
1475 f5bccd85 Diego Biurrun
     * Called at the beginning of each frame to get a buffer for it.
1476
     * If pic.reference is set then the frame will be read later by libavcodec.
1477 eb285cfe Reimar Döffinger
     * avcodec_align_dimensions2() should be used to find the required width and
1478 f5bccd85 Diego Biurrun
     * height, as they normally need to be rounded up to the next multiple of 16.
1479 f1b99cc6 Michael Niedermayer
     * if CODEC_CAP_DR1 is not set then get_buffer() must call
1480
     * avcodec_default_get_buffer() instead of providing buffers allocated by
1481
     * some other means.
1482 b38f008e Alexander Strange
     * If frame multithreading is used and thread_safe_callbacks is set,
1483
     * it may be called from a different thread, but not from more than one at once.
1484
     * Does not need to be reentrant.
1485 64863965 Michael Niedermayer
     * - encoding: unused
1486 53128bc3 Peter Ross
     * - decoding: Set by libavcodec, user can override.
1487 b71901e6 Michael Niedermayer
     */
1488 492cd3a9 Michael Niedermayer
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1489 115329f1 Diego Biurrun
1490 b71901e6 Michael Niedermayer
    /**
1491 69b192ac Ramiro Polla
     * Called to release buffers which were allocated with get_buffer.
1492 f5bccd85 Diego Biurrun
     * A released buffer can be reused in get_buffer().
1493
     * pic.data[*] must be set to NULL.
1494 b38f008e Alexander Strange
     * May be called from a different thread if frame multithreading is used,
1495
     * but not by more than one thread at once, so does not need to be reentrant.
1496 64863965 Michael Niedermayer
     * - encoding: unused
1497 53128bc3 Peter Ross
     * - decoding: Set by libavcodec, user can override.
1498 b71901e6 Michael Niedermayer
     */
1499 492cd3a9 Michael Niedermayer
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1500 0fd90455 Michael Niedermayer
1501 b71901e6 Michael Niedermayer
    /**
1502 eb8a25c8 Michael Niedermayer
     * Size of the frame reordering buffer in the decoder.
1503 2d7b0560 Diego Biurrun
     * For MPEG-2 it is 1 IPB or 0 low delay IP.
1504 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.
1505
     * - decoding: Set by libavcodec.
1506 b71901e6 Michael Niedermayer
     */
1507
    int has_b_frames;
1508 718b27a7 Michael Niedermayer
1509
    /**
1510
     * number of bytes per packet if constant and known or 0
1511 f5bccd85 Diego Biurrun
     * Used by some WAV based audio codecs.
1512 718b27a7 Michael Niedermayer
     */
1513
    int block_align;
1514 115329f1 Diego Biurrun
1515 f5bccd85 Diego Biurrun
    int parse_only; /* - decoding only: If true, only parsing is done
1516 917e06c8 Fabrice Bellard
                       (function avcodec_parse_frame()). The frame
1517
                       data is returned. Only MPEG codecs support this now. */
1518 115329f1 Diego Biurrun
1519 b71901e6 Michael Niedermayer
    /**
1520 f5bccd85 Diego Biurrun
     * 0-> h263 quant 1-> mpeg quant
1521
     * - encoding: Set by user.
1522 64863965 Michael Niedermayer
     * - decoding: unused
1523 b71901e6 Michael Niedermayer
     */
1524
    int mpeg_quant;
1525 115329f1 Diego Biurrun
1526 b71901e6 Michael Niedermayer
    /**
1527 f5bccd85 Diego Biurrun
     * pass1 encoding statistics output buffer
1528
     * - encoding: Set by libavcodec.
1529 64863965 Michael Niedermayer
     * - decoding: unused
1530 b71901e6 Michael Niedermayer
     */
1531 64863965 Michael Niedermayer
    char *stats_out;
1532 115329f1 Diego Biurrun
1533 b71901e6 Michael Niedermayer
    /**
1534 f5bccd85 Diego Biurrun
     * pass2 encoding statistics input buffer
1535
     * Concatenated stuff from stats_out of pass1 should be placed here.
1536
     * - encoding: Allocated/set/freed by user.
1537 64863965 Michael Niedermayer
     * - decoding: unused
1538 b71901e6 Michael Niedermayer
     */
1539
    char *stats_in;
1540 115329f1 Diego Biurrun
1541 b71901e6 Michael Niedermayer
    /**
1542 f5bccd85 Diego Biurrun
     * ratecontrol qmin qmax limiting method
1543
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax.
1544
     * - encoding: Set by user.
1545 64863965 Michael Niedermayer
     * - decoding: unused
1546 b71901e6 Michael Niedermayer
     */
1547 ce980a95 Michael Niedermayer
    float rc_qsquish;
1548 b71901e6 Michael Niedermayer
1549 ce980a95 Michael Niedermayer
    float rc_qmod_amp;
1550
    int rc_qmod_freq;
1551 115329f1 Diego Biurrun
1552 b71901e6 Michael Niedermayer
    /**
1553 f5bccd85 Diego Biurrun
     * ratecontrol override, see RcOverride
1554
     * - encoding: Allocated/set/freed by user.
1555 64863965 Michael Niedermayer
     * - decoding: unused
1556 b71901e6 Michael Niedermayer
     */
1557 ce980a95 Michael Niedermayer
    RcOverride *rc_override;
1558
    int rc_override_count;
1559 115329f1 Diego Biurrun
1560 b71901e6 Michael Niedermayer
    /**
1561 f5bccd85 Diego Biurrun
     * rate control equation
1562
     * - encoding: Set by user
1563 64863965 Michael Niedermayer
     * - decoding: unused
1564 b71901e6 Michael Niedermayer
     */
1565 6881b8e5 Luca Abeni
    const char *rc_eq;
1566 115329f1 Diego Biurrun
1567 b71901e6 Michael Niedermayer
    /**
1568 f5bccd85 Diego Biurrun
     * maximum bitrate
1569
     * - encoding: Set by user.
1570 64863965 Michael Niedermayer
     * - decoding: unused
1571 b71901e6 Michael Niedermayer
     */
1572 ce980a95 Michael Niedermayer
    int rc_max_rate;
1573 115329f1 Diego Biurrun
1574 b71901e6 Michael Niedermayer
    /**
1575 f5bccd85 Diego Biurrun
     * minimum bitrate
1576
     * - encoding: Set by user.
1577 64863965 Michael Niedermayer
     * - decoding: unused
1578 b71901e6 Michael Niedermayer
     */
1579 ce980a95 Michael Niedermayer
    int rc_min_rate;
1580 115329f1 Diego Biurrun
1581 b71901e6 Michael Niedermayer
    /**
1582 f5bccd85 Diego Biurrun
     * decoder bitstream buffer size
1583
     * - encoding: Set by user.
1584 64863965 Michael Niedermayer
     * - decoding: unused
1585 b71901e6 Michael Niedermayer
     */
1586 ce980a95 Michael Niedermayer
    int rc_buffer_size;
1587
    float rc_buffer_aggressivity;
1588 b71901e6 Michael Niedermayer
1589
    /**
1590 f5bccd85 Diego Biurrun
     * qscale factor between P and I-frames
1591
     * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
1592
     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
1593
     * - encoding: Set by user.
1594 64863965 Michael Niedermayer
     * - decoding: unused
1595 b71901e6 Michael Niedermayer
     */
1596
    float i_quant_factor;
1597 115329f1 Diego Biurrun
1598 b71901e6 Michael Niedermayer
    /**
1599 f5bccd85 Diego Biurrun
     * qscale offset between P and I-frames
1600
     * - encoding: Set by user.
1601 64863965 Michael Niedermayer
     * - decoding: unused
1602 b71901e6 Michael Niedermayer
     */
1603
    float i_quant_offset;
1604 115329f1 Diego Biurrun
1605 b71901e6 Michael Niedermayer
    /**
1606 f5bccd85 Diego Biurrun
     * initial complexity for pass1 ratecontrol
1607
     * - encoding: Set by user.
1608 64863965 Michael Niedermayer
     * - decoding: unused
1609 b71901e6 Michael Niedermayer
     */
1610 ce980a95 Michael Niedermayer
    float rc_initial_cplx;
1611 917e06c8 Fabrice Bellard
1612 b71901e6 Michael Niedermayer
    /**
1613 f5bccd85 Diego Biurrun
     * DCT algorithm, see FF_DCT_* below
1614
     * - encoding: Set by user.
1615 64863965 Michael Niedermayer
     * - decoding: unused
1616 b71901e6 Michael Niedermayer
     */
1617 28db7fce Michael Niedermayer
    int dct_algo;
1618 c7e07931 Martin Olschewski
#define FF_DCT_AUTO    0
1619 28db7fce Michael Niedermayer
#define FF_DCT_FASTINT 1
1620 c7e07931 Martin Olschewski
#define FF_DCT_INT     2
1621
#define FF_DCT_MMX     3
1622
#define FF_DCT_MLIB    4
1623 05c4072b Michael Niedermayer
#define FF_DCT_ALTIVEC 5
1624 65e4c8c9 Michael Niedermayer
#define FF_DCT_FAAN    6
1625 115329f1 Diego Biurrun
1626 c5d309f2 Michael Niedermayer
    /**
1627 f5bccd85 Diego Biurrun
     * luminance masking (0-> disabled)
1628
     * - encoding: Set by user.
1629 64863965 Michael Niedermayer
     * - decoding: unused
1630 c5d309f2 Michael Niedermayer
     */
1631
    float lumi_masking;
1632 115329f1 Diego Biurrun
1633 c5d309f2 Michael Niedermayer
    /**
1634 f5bccd85 Diego Biurrun
     * temporary complexity masking (0-> disabled)
1635
     * - encoding: Set by user.
1636 64863965 Michael Niedermayer
     * - decoding: unused
1637 c5d309f2 Michael Niedermayer
     */
1638
    float temporal_cplx_masking;
1639 115329f1 Diego Biurrun
1640 c5d309f2 Michael Niedermayer
    /**
1641 f5bccd85 Diego Biurrun
     * spatial complexity masking (0-> disabled)
1642
     * - encoding: Set by user.
1643 64863965 Michael Niedermayer
     * - decoding: unused
1644 c5d309f2 Michael Niedermayer
     */
1645
    float spatial_cplx_masking;
1646 115329f1 Diego Biurrun
1647 c5d309f2 Michael Niedermayer
    /**
1648 f5bccd85 Diego Biurrun
     * p block masking (0-> disabled)
1649
     * - encoding: Set by user.
1650 64863965 Michael Niedermayer
     * - decoding: unused
1651 c5d309f2 Michael Niedermayer
     */
1652
    float p_masking;
1653 15415af4 Michael Niedermayer
1654 5e746b99 Michael Niedermayer
    /**
1655 f5bccd85 Diego Biurrun
     * darkness masking (0-> disabled)
1656
     * - encoding: Set by user.
1657 64863965 Michael Niedermayer
     * - decoding: unused
1658 5e746b99 Michael Niedermayer
     */
1659
    float dark_masking;
1660 115329f1 Diego Biurrun
1661 0c2dd16e Michael Niedermayer
    /**
1662 f5bccd85 Diego Biurrun
     * IDCT algorithm, see FF_IDCT_* below.
1663
     * - encoding: Set by user.
1664
     * - decoding: Set by user.
1665 2ad1516a Michael Niedermayer
     */
1666
    int idct_algo;
1667 273b0cd3 Diego Biurrun
#define FF_IDCT_AUTO          0
1668
#define FF_IDCT_INT           1
1669
#define FF_IDCT_SIMPLE        2
1670
#define FF_IDCT_SIMPLEMMX     3
1671
#define FF_IDCT_LIBMPEG2MMX   4
1672
#define FF_IDCT_PS2           5
1673
#define FF_IDCT_MLIB          6
1674
#define FF_IDCT_ARM           7
1675
#define FF_IDCT_ALTIVEC       8
1676
#define FF_IDCT_SH4           9
1677
#define FF_IDCT_SIMPLEARM     10
1678
#define FF_IDCT_H264          11
1679
#define FF_IDCT_VP3           12
1680
#define FF_IDCT_IPP           13
1681
#define FF_IDCT_XVIDMMX       14
1682
#define FF_IDCT_CAVS          15
1683 a0403006 Måns Rullgård
#define FF_IDCT_SIMPLEARMV5TE 16
1684 273b0cd3 Diego Biurrun
#define FF_IDCT_SIMPLEARMV6   17
1685 d9420d4d Denes Balatoni
#define FF_IDCT_SIMPLEVIS     18
1686 9abc7e0f Michael Niedermayer
#define FF_IDCT_WMV2          19
1687 6f08c541 Michael Niedermayer
#define FF_IDCT_FAAN          20
1688 42b30357 Peter Ross
#define FF_IDCT_EA            21
1689 7eec4328 Måns Rullgård
#define FF_IDCT_SIMPLENEON    22
1690 74c47463 Måns Rullgård
#define FF_IDCT_SIMPLEALPHA   23
1691 342c7dfd Kostya Shishkov
#define FF_IDCT_BINK          24
1692 2ad1516a Michael Niedermayer
1693 144f0625 Michael Niedermayer
    /**
1694 f5bccd85 Diego Biurrun
     * slice count
1695
     * - encoding: Set by libavcodec.
1696
     * - decoding: Set by user (or 0).
1697 144f0625 Michael Niedermayer
     */
1698
    int slice_count;
1699
    /**
1700 f5bccd85 Diego Biurrun
     * slice offsets in the frame in bytes
1701
     * - encoding: Set/allocated by libavcodec.
1702
     * - decoding: Set/allocated by user (or NULL).
1703 144f0625 Michael Niedermayer
     */
1704
    int *slice_offset;
1705
1706 4d2858de Michael Niedermayer
    /**
1707 f5bccd85 Diego Biurrun
     * error concealment flags
1708 64863965 Michael Niedermayer
     * - encoding: unused
1709 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1710 4d2858de Michael Niedermayer
     */
1711
    int error_concealment;
1712
#define FF_EC_GUESS_MVS   1
1713
#define FF_EC_DEBLOCK     2
1714
1715 6b72ac63 Michael Niedermayer
    /**
1716 bec89a84 Zdenek Kabelac
     * dsp_mask could be add used to disable unwanted CPU features
1717 8350df97 Zdenek Kabelac
     * CPU features (i.e. MMX, SSE. ...)
1718 bec89a84 Zdenek Kabelac
     *
1719 f5bccd85 Diego Biurrun
     * With the FORCE flag you may instead enable given CPU features.
1720
     * (Dangerous: Usable in case of misdetection, improper usage however will
1721
     * result into program crash.)
1722 bec89a84 Zdenek Kabelac
     */
1723
    unsigned dsp_mask;
1724 7160bb71 Stefano Sabatini
1725 11f18faf Michael Niedermayer
    /**
1726 64863965 Michael Niedermayer
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1727 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.
1728
     * - decoding: Set by user.
1729 11f18faf Michael Niedermayer
     */
1730 46a73068 Peter Ross
     int bits_per_coded_sample;
1731 115329f1 Diego Biurrun
1732 11f18faf Michael Niedermayer
    /**
1733 f5bccd85 Diego Biurrun
     * prediction method (needed for huffyuv)
1734
     * - encoding: Set by user.
1735 64863965 Michael Niedermayer
     * - decoding: unused
1736 11f18faf Michael Niedermayer
     */
1737
     int prediction_method;
1738
#define FF_PRED_LEFT   0
1739
#define FF_PRED_PLANE  1
1740
#define FF_PRED_MEDIAN 2
1741 115329f1 Diego Biurrun
1742 5d3cea3a Michael Niedermayer
    /**
1743 f5bccd85 Diego Biurrun
     * sample aspect ratio (0 if unknown)
1744 8e5af7a6 Michael Niedermayer
     * That is the width of a pixel divided by the height of the pixel.
1745 f5bccd85 Diego Biurrun
     * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
1746
     * - encoding: Set by user.
1747
     * - decoding: Set by libavcodec.
1748 5d3cea3a Michael Niedermayer
     */
1749 5ff85f1d Michael Niedermayer
    AVRational sample_aspect_ratio;
1750 1e491e29 Michael Niedermayer
1751
    /**
1752 f5bccd85 Diego Biurrun
     * the picture in the bitstream
1753
     * - encoding: Set by libavcodec.
1754
     * - decoding: Set by libavcodec.
1755 1e491e29 Michael Niedermayer
     */
1756 492cd3a9 Michael Niedermayer
    AVFrame *coded_frame;
1757 c8c437bc Michael Niedermayer
1758
    /**
1759 f5bccd85 Diego Biurrun
     * debug
1760
     * - encoding: Set by user.
1761
     * - decoding: Set by user.
1762 c8c437bc Michael Niedermayer
     */
1763
    int debug;
1764 273b0cd3 Diego Biurrun
#define FF_DEBUG_PICT_INFO   1
1765
#define FF_DEBUG_RC          2
1766
#define FF_DEBUG_BITSTREAM   4
1767
#define FF_DEBUG_MB_TYPE     8
1768
#define FF_DEBUG_QP          16
1769
#define FF_DEBUG_MV          32
1770
#define FF_DEBUG_DCT_COEFF   0x00000040
1771
#define FF_DEBUG_SKIP        0x00000080
1772
#define FF_DEBUG_STARTCODE   0x00000100
1773
#define FF_DEBUG_PTS         0x00000200
1774
#define FF_DEBUG_ER          0x00000400
1775
#define FF_DEBUG_MMCO        0x00000800
1776
#define FF_DEBUG_BUGS        0x00001000
1777
#define FF_DEBUG_VIS_QP      0x00002000
1778 864119b6 Michael Niedermayer
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1779 385c820b Alexander Strange
#define FF_DEBUG_BUFFERS     0x00008000
1780 b38f008e Alexander Strange
#define FF_DEBUG_THREADS     0x00010000
1781 115329f1 Diego Biurrun
1782 140cb663 Michael Niedermayer
    /**
1783 f5bccd85 Diego Biurrun
     * debug
1784
     * - encoding: Set by user.
1785
     * - decoding: Set by user.
1786 0c9bbaec Wolfgang Hesseler
     */
1787
    int debug_mv;
1788
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1789
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1790
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1791
1792
    /**
1793 f5bccd85 Diego Biurrun
     * error
1794
     * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
1795 64863965 Michael Niedermayer
     * - decoding: unused
1796 140cb663 Michael Niedermayer
     */
1797
    uint64_t error[4];
1798 115329f1 Diego Biurrun
1799 1457ab52 Michael Niedermayer
    /**
1800 f5bccd85 Diego Biurrun
     * motion estimation comparison function
1801
     * - encoding: Set by user.
1802 64863965 Michael Niedermayer
     * - decoding: unused
1803 1457ab52 Michael Niedermayer
     */
1804
    int me_cmp;
1805
    /**
1806 f5bccd85 Diego Biurrun
     * subpixel motion estimation comparison function
1807
     * - encoding: Set by user.
1808 64863965 Michael Niedermayer
     * - decoding: unused
1809 1457ab52 Michael Niedermayer
     */
1810
    int me_sub_cmp;
1811
    /**
1812 f5bccd85 Diego Biurrun
     * macroblock comparison function (not supported yet)
1813
     * - encoding: Set by user.
1814 64863965 Michael Niedermayer
     * - decoding: unused
1815 1457ab52 Michael Niedermayer
     */
1816
    int mb_cmp;
1817 622348f9 Michael Niedermayer
    /**
1818 f5bccd85 Diego Biurrun
     * interlaced DCT comparison function
1819
     * - encoding: Set by user.
1820 622348f9 Michael Niedermayer
     * - decoding: unused
1821
     */
1822
    int ildct_cmp;
1823 273b0cd3 Diego Biurrun
#define FF_CMP_SAD    0
1824
#define FF_CMP_SSE    1
1825
#define FF_CMP_SATD   2
1826
#define FF_CMP_DCT    3
1827
#define FF_CMP_PSNR   4
1828
#define FF_CMP_BIT    5
1829
#define FF_CMP_RD     6
1830
#define FF_CMP_ZERO   7
1831
#define FF_CMP_VSAD   8
1832
#define FF_CMP_VSSE   9
1833
#define FF_CMP_NSSE   10
1834
#define FF_CMP_W53    11
1835
#define FF_CMP_W97    12
1836 0fd6aea1 Michael Niedermayer
#define FF_CMP_DCTMAX 13
1837 27c61ac5 Michael Niedermayer
#define FF_CMP_DCT264 14
1838 1457ab52 Michael Niedermayer
#define FF_CMP_CHROMA 256
1839 115329f1 Diego Biurrun
1840 1457ab52 Michael Niedermayer
    /**
1841 f5bccd85 Diego Biurrun
     * ME diamond size & shape
1842
     * - encoding: Set by user.
1843 64863965 Michael Niedermayer
     * - decoding: unused
1844 1457ab52 Michael Niedermayer
     */
1845
    int dia_size;
1846 b07a5980 Michael Niedermayer
1847
    /**
1848 f5bccd85 Diego Biurrun
     * amount of previous MV predictors (2a+1 x 2a+1 square)
1849
     * - encoding: Set by user.
1850 64863965 Michael Niedermayer
     * - decoding: unused
1851 b07a5980 Michael Niedermayer
     */
1852
    int last_predictor_count;
1853 70ac76c0 Michael Niedermayer
1854 f5fb6b34 Michael Niedermayer
    /**
1855 f5bccd85 Diego Biurrun
     * prepass for motion estimation
1856
     * - encoding: Set by user.
1857 64863965 Michael Niedermayer
     * - decoding: unused
1858 f5fb6b34 Michael Niedermayer
     */
1859
    int pre_me;
1860 b07a5980 Michael Niedermayer
1861 70ac76c0 Michael Niedermayer
    /**
1862 f5bccd85 Diego Biurrun
     * motion estimation prepass comparison function
1863
     * - encoding: Set by user.
1864 64863965 Michael Niedermayer
     * - decoding: unused
1865 70ac76c0 Michael Niedermayer
     */
1866
    int me_pre_cmp;
1867 826f429a Michael Niedermayer
1868 70ac76c0 Michael Niedermayer
    /**
1869 f5bccd85 Diego Biurrun
     * ME prepass diamond size & shape
1870
     * - encoding: Set by user.
1871 64863965 Michael Niedermayer
     * - decoding: unused
1872 70ac76c0 Michael Niedermayer
     */
1873
    int pre_dia_size;
1874
1875 826f429a Michael Niedermayer
    /**
1876 f5bccd85 Diego Biurrun
     * subpel ME quality
1877
     * - encoding: Set by user.
1878 64863965 Michael Niedermayer
     * - decoding: unused
1879 826f429a Michael Niedermayer
     */
1880
    int me_subpel_quality;
1881
1882 a33c7159 Michael Niedermayer
    /**
1883 f5bccd85 Diego Biurrun
     * callback to negotiate the pixelFormat
1884 a33c7159 Michael Niedermayer
     * @param fmt is the list of formats which are supported by the codec,
1885 f5bccd85 Diego Biurrun
     * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
1886
     * The first is always the native one.
1887
     * @return the chosen format
1888 64863965 Michael Niedermayer
     * - encoding: unused
1889 f5bccd85 Diego Biurrun
     * - decoding: Set by user, if not set the native format will be chosen.
1890 a33c7159 Michael Niedermayer
     */
1891 494c56d3 Ivan Kalvachev
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1892 e2f9490e Fabrice Bellard
1893
    /**
1894 f5bccd85 Diego Biurrun
     * DTG active format information (additional aspect ratio
1895
     * information only used in DVB MPEG-2 transport streams)
1896
     * 0 if not set.
1897 115329f1 Diego Biurrun
     *
1898 f5bccd85 Diego Biurrun
     * - encoding: unused
1899
     * - decoding: Set by decoder.
1900 e2f9490e Fabrice Bellard
     */
1901
    int dtg_active_format;
1902
#define FF_DTG_AFD_SAME         8
1903
#define FF_DTG_AFD_4_3          9
1904
#define FF_DTG_AFD_16_9         10
1905
#define FF_DTG_AFD_14_9         11
1906
#define FF_DTG_AFD_4_3_SP_14_9  13
1907
#define FF_DTG_AFD_16_9_SP_14_9 14
1908
#define FF_DTG_AFD_SP_4_3       15
1909
1910 ebbcdc9a Michael Niedermayer
    /**
1911 f5bccd85 Diego Biurrun
     * maximum motion estimation search range in subpel units
1912
     * If 0 then no limit.
1913 115329f1 Diego Biurrun
     *
1914 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1915
     * - decoding: unused
1916 ebbcdc9a Michael Niedermayer
     */
1917 59e0ac8e Zdenek Kabelac
    int me_range;
1918 ebbcdc9a Michael Niedermayer
1919 65f7062d Michael Niedermayer
    /**
1920 f5bccd85 Diego Biurrun
     * intra quantizer bias
1921
     * - encoding: Set by user.
1922 1984f635 Michael Niedermayer
     * - decoding: unused
1923
     */
1924
    int intra_quant_bias;
1925
#define FF_DEFAULT_QUANT_BIAS 999999
1926 115329f1 Diego Biurrun
1927 1984f635 Michael Niedermayer
    /**
1928 f5bccd85 Diego Biurrun
     * inter quantizer bias
1929
     * - encoding: Set by user.
1930 1984f635 Michael Niedermayer
     * - decoding: unused
1931
     */
1932
    int inter_quant_bias;
1933 5cd62665 Zdenek Kabelac
1934
    /**
1935 f5bccd85 Diego Biurrun
     * color table ID
1936
     * - encoding: unused
1937
     * - decoding: Which clrtable should be used for 8bit RGB images.
1938
     *             Tables have to be stored somewhere. FIXME
1939 5cd62665 Zdenek Kabelac
     */
1940
    int color_table_id;
1941 115329f1 Diego Biurrun
1942 d90cf87b Michael Niedermayer
    /**
1943 f5bccd85 Diego Biurrun
     * internal_buffer count
1944
     * Don't touch, used by libavcodec default_get_buffer().
1945 d90cf87b Michael Niedermayer
     */
1946
    int internal_buffer_count;
1947 115329f1 Diego Biurrun
1948 d90cf87b Michael Niedermayer
    /**
1949 f5bccd85 Diego Biurrun
     * internal_buffers
1950
     * Don't touch, used by libavcodec default_get_buffer().
1951 d90cf87b Michael Niedermayer
     */
1952
    void *internal_buffer;
1953 158c7f05 Michael Niedermayer
1954 3d2e8cce Michael Niedermayer
    /**
1955 f5bccd85 Diego Biurrun
     * Global quality for codecs which cannot change it per frame.
1956
     * This should be proportional to MPEG-1/2/4 qscale.
1957
     * - encoding: Set by user.
1958 3d2e8cce Michael Niedermayer
     * - decoding: unused
1959
     */
1960
    int global_quality;
1961 115329f1 Diego Biurrun
1962 bd446bb1 Michael Niedermayer
#define FF_CODER_TYPE_VLC       0
1963
#define FF_CODER_TYPE_AC        1
1964 f87459e4 Kamil Nowosad
#define FF_CODER_TYPE_RAW       2
1965
#define FF_CODER_TYPE_RLE       3
1966
#define FF_CODER_TYPE_DEFLATE   4
1967 11e659c2 Michael Niedermayer
    /**
1968
     * coder type
1969 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1970 11e659c2 Michael Niedermayer
     * - decoding: unused
1971
     */
1972
    int coder_type;
1973
1974
    /**
1975
     * context model
1976 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1977 11e659c2 Michael Niedermayer
     * - decoding: unused
1978
     */
1979
    int context_model;
1980 5639729b Michael Niedermayer
#if 0
1981
    /**
1982
     *
1983
     * - encoding: unused
1984 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1985 5639729b Michael Niedermayer
     */
1986
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1987
#endif
1988 115329f1 Diego Biurrun
1989 3bb07d61 Michael Niedermayer
    /**
1990
     * slice flags
1991
     * - encoding: unused
1992 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1993 3bb07d61 Michael Niedermayer
     */
1994
    int slice_flags;
1995
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1996
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1997
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1998
1999 fb364ada Ivan Kalvachev
    /**
2000
     * XVideo Motion Acceleration
2001
     * - encoding: forbidden
2002
     * - decoding: set by decoder
2003
     */
2004
    int xvmc_acceleration;
2005 115329f1 Diego Biurrun
2006 7d1c3fc1 Michael Niedermayer
    /**
2007
     * macroblock decision mode
2008 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2009 7d1c3fc1 Michael Niedermayer
     * - decoding: unused
2010
     */
2011
    int mb_decision;
2012
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
2013
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
2014 e6dba5df Ramiro Polla
#define FF_MB_DECISION_RD     2        ///< rate distortion
2015 d6eb3c50 Michael Niedermayer
2016
    /**
2017
     * custom intra quantization matrix
2018 f5bccd85 Diego Biurrun
     * - encoding: Set by user, can be NULL.
2019
     * - decoding: Set by libavcodec.
2020 d6eb3c50 Michael Niedermayer
     */
2021
    uint16_t *intra_matrix;
2022
2023
    /**
2024
     * custom inter quantization matrix
2025 f5bccd85 Diego Biurrun
     * - encoding: Set by user, can be NULL.
2026
     * - decoding: Set by libavcodec.
2027 d6eb3c50 Michael Niedermayer
     */
2028
    uint16_t *inter_matrix;
2029 115329f1 Diego Biurrun
2030 541ae140 Michael Niedermayer
    /**
2031
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
2032 f5bccd85 Diego Biurrun
     * This is used to work around some encoder bugs.
2033 541ae140 Michael Niedermayer
     * - encoding: unused
2034 f5bccd85 Diego Biurrun
     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
2035 541ae140 Michael Niedermayer
     */
2036
    unsigned int stream_codec_tag;
2037 05fbd0a2 Michael Niedermayer
2038
    /**
2039 f5bccd85 Diego Biurrun
     * scene change detection threshold
2040
     * 0 is default, larger means fewer detected scene changes.
2041
     * - encoding: Set by user.
2042 05fbd0a2 Michael Niedermayer
     * - decoding: unused
2043
     */
2044
    int scenechange_threshold;
2045 158c7f05 Michael Niedermayer
2046
    /**
2047 f5bccd85 Diego Biurrun
     * minimum Lagrange multipler
2048
     * - encoding: Set by user.
2049 158c7f05 Michael Niedermayer
     * - decoding: unused
2050
     */
2051
    int lmin;
2052
2053
    /**
2054 f5bccd85 Diego Biurrun
     * maximum Lagrange multipler
2055
     * - encoding: Set by user.
2056 158c7f05 Michael Niedermayer
     * - decoding: unused
2057
     */
2058
    int lmax;
2059 2a2bbcb0 Mike Melanson
2060 eda7c983 Aurelien Jacobs
#if FF_API_PALETTE_CONTROL
2061 2a2bbcb0 Mike Melanson
    /**
2062 f5bccd85 Diego Biurrun
     * palette control structure
2063 2a2bbcb0 Mike Melanson
     * - encoding: ??? (no palette-enabled encoder yet)
2064 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2065 2a2bbcb0 Mike Melanson
     */
2066
    struct AVPaletteControl *palctrl;
2067 eda7c983 Aurelien Jacobs
#endif
2068 821cb11f Michael Niedermayer
2069
    /**
2070
     * noise reduction strength
2071 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2072 821cb11f Michael Niedermayer
     * - decoding: unused
2073
     */
2074
    int noise_reduction;
2075 115329f1 Diego Biurrun
2076 074c4ca7 Roberto Togni
    /**
2077 f5bccd85 Diego Biurrun
     * Called at the beginning of a frame to get cr buffer for it.
2078
     * Buffer type (size, hints) must be the same. libavcodec won't check it.
2079
     * libavcodec will pass previous buffer in pic, function should return
2080 e1c2a5a0 Roberto Togni
     * same buffer or new buffer with old frame "painted" into it.
2081 f5bccd85 Diego Biurrun
     * If pic.data[0] == NULL must behave like get_buffer().
2082 f1b99cc6 Michael Niedermayer
     * if CODEC_CAP_DR1 is not set then reget_buffer() must call
2083
     * avcodec_default_reget_buffer() instead of providing buffers allocated by
2084
     * some other means.
2085 074c4ca7 Roberto Togni
     * - encoding: unused
2086 53128bc3 Peter Ross
     * - decoding: Set by libavcodec, user can override.
2087 074c4ca7 Roberto Togni
     */
2088 e1c2a5a0 Roberto Togni
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
2089 ba58dabc Michael Niedermayer
2090
    /**
2091 f5bccd85 Diego Biurrun
     * Number of bits which should be loaded into the rc buffer before decoding starts.
2092
     * - encoding: Set by user.
2093 ba58dabc Michael Niedermayer
     * - decoding: unused
2094
     */
2095
    int rc_initial_buffer_occupancy;
2096
2097
    /**
2098
     *
2099 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2100 ba58dabc Michael Niedermayer
     * - decoding: unused
2101
     */
2102
    int inter_threshold;
2103
2104
    /**
2105 f5bccd85 Diego Biurrun
     * CODEC_FLAG2_*
2106
     * - encoding: Set by user.
2107
     * - decoding: Set by user.
2108 ba58dabc Michael Niedermayer
     */
2109
    int flags2;
2110 7ebfc0ea Michael Niedermayer
2111
    /**
2112 f5bccd85 Diego Biurrun
     * Simulates errors in the bitstream to test error concealment.
2113
     * - encoding: Set by user.
2114
     * - decoding: unused
2115 7ebfc0ea Michael Niedermayer
     */
2116
    int error_rate;
2117 115329f1 Diego Biurrun
2118 4e3945fd Anton Khirnov
#if FF_API_ANTIALIAS_ALGO
2119 a1e257b2 Michael Niedermayer
    /**
2120
     * MP3 antialias algorithm, see FF_AA_* below.
2121
     * - encoding: unused
2122 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2123 a1e257b2 Michael Niedermayer
     */
2124 4e3945fd Anton Khirnov
    attribute_deprecated int antialias_algo;
2125 a1e257b2 Michael Niedermayer
#define FF_AA_AUTO    0
2126
#define FF_AA_FASTINT 1 //not implemented yet
2127
#define FF_AA_INT     2
2128
#define FF_AA_FLOAT   3
2129 4e3945fd Anton Khirnov
#endif
2130
2131 77ea0d4b Michael Niedermayer
    /**
2132 f5bccd85 Diego Biurrun
     * quantizer noise shaping
2133
     * - encoding: Set by user.
2134 77ea0d4b Michael Niedermayer
     * - decoding: unused
2135
     */
2136
    int quantizer_noise_shaping;
2137 9c3d33d6 Michael Niedermayer
2138
    /**
2139 f5bccd85 Diego Biurrun
     * thread count
2140 eafcac6a Diego Biurrun
     * is used to decide how many independent tasks should be passed to execute()
2141 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2142
     * - decoding: Set by user.
2143 9c3d33d6 Michael Niedermayer
     */
2144
    int thread_count;
2145 115329f1 Diego Biurrun
2146 9c3d33d6 Michael Niedermayer
    /**
2147 f5bccd85 Diego Biurrun
     * The codec may call this to execute several independent things.
2148
     * It will return only after finishing all tasks.
2149
     * The user may replace this with some multithreaded implementation,
2150
     * the default implementation will execute the parts serially.
2151 399cec2f Michael Niedermayer
     * @param count the number of things to execute
2152 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec, user can override.
2153
     * - decoding: Set by libavcodec, user can override.
2154 9c3d33d6 Michael Niedermayer
     */
2155 3a84713a Roman Shaposhnik
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
2156 115329f1 Diego Biurrun
2157 9c3d33d6 Michael Niedermayer
    /**
2158 f5bccd85 Diego Biurrun
     * thread opaque
2159
     * Can be used by execute() to store some per AVCodecContext stuff.
2160 9c3d33d6 Michael Niedermayer
     * - encoding: set by execute()
2161
     * - decoding: set by execute()
2162
     */
2163
    void *thread_opaque;
2164 a4d36c11 Michael Niedermayer
2165
    /**
2166 f5bccd85 Diego Biurrun
     * Motion estimation threshold below which no motion estimation is
2167
     * performed, but instead the user specified motion vectors are used.
2168 115329f1 Diego Biurrun
     *
2169 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2170 f20f8a8b Michael Niedermayer
     * - decoding: unused
2171 a4d36c11 Michael Niedermayer
     */
2172 2750b827 Michael Niedermayer
     int me_threshold;
2173 f20f8a8b Michael Niedermayer
2174
    /**
2175 f5bccd85 Diego Biurrun
     * Macroblock threshold below which the user specified macroblock types will be used.
2176
     * - encoding: Set by user.
2177 f20f8a8b Michael Niedermayer
     * - decoding: unused
2178
     */
2179
     int mb_threshold;
2180 bf266e19 Michael Niedermayer
2181
    /**
2182 f5bccd85 Diego Biurrun
     * precision of the intra DC coefficient - 8
2183
     * - encoding: Set by user.
2184 bf266e19 Michael Niedermayer
     * - decoding: unused
2185
     */
2186
     int intra_dc_precision;
2187 d4c5d2ad Michael Niedermayer
2188
    /**
2189 f5bccd85 Diego Biurrun
     * noise vs. sse weight for the nsse comparsion function
2190
     * - encoding: Set by user.
2191 d4c5d2ad Michael Niedermayer
     * - decoding: unused
2192
     */
2193
     int nsse_weight;
2194 0dfd33c3 Michael Niedermayer
2195
    /**
2196 f5bccd85 Diego Biurrun
     * Number of macroblock rows at the top which are skipped.
2197 0dfd33c3 Michael Niedermayer
     * - encoding: unused
2198 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2199 0dfd33c3 Michael Niedermayer
     */
2200
     int skip_top;
2201
2202
    /**
2203 f5bccd85 Diego Biurrun
     * Number of macroblock rows at the bottom which are skipped.
2204 0dfd33c3 Michael Niedermayer
     * - encoding: unused
2205 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2206 0dfd33c3 Michael Niedermayer
     */
2207
     int skip_bottom;
2208 baced9f5 Michael Niedermayer
2209
    /**
2210
     * profile
2211 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2212
     * - decoding: Set by libavcodec.
2213 baced9f5 Michael Niedermayer
     */
2214
     int profile;
2215
#define FF_PROFILE_UNKNOWN -99
2216 aecd0a44 Benjamin Larsson
#define FF_PROFILE_RESERVED -100
2217 dd0cd3d2 Rafaël Carré
2218 4f2c36ac Nicolas George
#define FF_PROFILE_AAC_MAIN 0
2219 273b0cd3 Diego Biurrun
#define FF_PROFILE_AAC_LOW  1
2220
#define FF_PROFILE_AAC_SSR  2
2221
#define FF_PROFILE_AAC_LTP  3
2222 baced9f5 Michael Niedermayer
2223 f5a2d285 Anssi Hannula
#define FF_PROFILE_DTS         20
2224
#define FF_PROFILE_DTS_ES      30
2225
#define FF_PROFILE_DTS_96_24   40
2226
#define FF_PROFILE_DTS_HD_HRA  50
2227
#define FF_PROFILE_DTS_HD_MA   60
2228
2229 aecd0a44 Benjamin Larsson
#define FF_PROFILE_MPEG2_422    0
2230
#define FF_PROFILE_MPEG2_HIGH   1
2231
#define FF_PROFILE_MPEG2_SS     2
2232
#define FF_PROFILE_MPEG2_SNR_SCALABLE  3
2233
#define FF_PROFILE_MPEG2_MAIN   4
2234
#define FF_PROFILE_MPEG2_SIMPLE 5
2235
2236 94e3e83f Janne Grunau
#define FF_PROFILE_H264_CONSTRAINED  (1<<9)  // 8+1; constraint_set1_flag
2237
#define FF_PROFILE_H264_INTRA        (1<<11) // 8+3; constraint_set3_flag
2238
2239
#define FF_PROFILE_H264_BASELINE             66
2240
#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
2241
#define FF_PROFILE_H264_MAIN                 77
2242
#define FF_PROFILE_H264_EXTENDED             88
2243
#define FF_PROFILE_H264_HIGH                 100
2244
#define FF_PROFILE_H264_HIGH_10              110
2245
#define FF_PROFILE_H264_HIGH_10_INTRA        (110|FF_PROFILE_H264_INTRA)
2246
#define FF_PROFILE_H264_HIGH_422             122
2247
#define FF_PROFILE_H264_HIGH_422_INTRA       (122|FF_PROFILE_H264_INTRA)
2248 154f7bb0 Janne Grunau
#define FF_PROFILE_H264_HIGH_444             144
2249 94e3e83f Janne Grunau
#define FF_PROFILE_H264_HIGH_444_PREDICTIVE  244
2250
#define FF_PROFILE_H264_HIGH_444_INTRA       (244|FF_PROFILE_H264_INTRA)
2251
#define FF_PROFILE_H264_CAVLC_444            44
2252 dd0cd3d2 Rafaël Carré
2253 0215006a Hendrik Leppkes
#define FF_PROFILE_VC1_SIMPLE   0
2254
#define FF_PROFILE_VC1_MAIN     1
2255
#define FF_PROFILE_VC1_COMPLEX  2
2256
#define FF_PROFILE_VC1_ADVANCED 3
2257
2258 baced9f5 Michael Niedermayer
    /**
2259
     * level
2260 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2261
     * - decoding: Set by libavcodec.
2262 baced9f5 Michael Niedermayer
     */
2263
     int level;
2264
#define FF_LEVEL_UNKNOWN -99
2265 178fcca8 Michael Niedermayer
2266
    /**
2267 f5bccd85 Diego Biurrun
     * low resolution decoding, 1-> 1/2 size, 2->1/4 size
2268 178fcca8 Michael Niedermayer
     * - encoding: unused
2269 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2270 178fcca8 Michael Niedermayer
     */
2271
     int lowres;
2272 21adafec Michael Niedermayer
2273
    /**
2274 f5bccd85 Diego Biurrun
     * Bitstream width / height, may be different from width/height if lowres
2275
     * or other things are used.
2276 21adafec Michael Niedermayer
     * - encoding: unused
2277 f5bccd85 Diego Biurrun
     * - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
2278 21adafec Michael Niedermayer
     */
2279
    int coded_width, coded_height;
2280 bbf18b21 Michael Niedermayer
2281
    /**
2282
     * frame skip threshold
2283 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2284 bbf18b21 Michael Niedermayer
     * - decoding: unused
2285
     */
2286
    int frame_skip_threshold;
2287
2288
    /**
2289
     * frame skip factor
2290 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2291 bbf18b21 Michael Niedermayer
     * - decoding: unused
2292
     */
2293
    int frame_skip_factor;
2294 0fd6aea1 Michael Niedermayer
2295
    /**
2296
     * frame skip exponent
2297 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2298 0fd6aea1 Michael Niedermayer
     * - decoding: unused
2299
     */
2300
    int frame_skip_exp;
2301
2302
    /**
2303 f5bccd85 Diego Biurrun
     * frame skip comparison function
2304
     * - encoding: Set by user.
2305 0fd6aea1 Michael Niedermayer
     * - decoding: unused
2306
     */
2307
    int frame_skip_cmp;
2308 957c743a Christophe Massiot
2309
    /**
2310 f5bccd85 Diego Biurrun
     * Border processing masking, raises the quantizer for mbs on the borders
2311 957c743a Christophe Massiot
     * of the picture.
2312 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2313 957c743a Christophe Massiot
     * - decoding: unused
2314
     */
2315
    float border_masking;
2316 6e0d8c06 Michael Niedermayer
2317
    /**
2318 f5bccd85 Diego Biurrun
     * minimum MB lagrange multipler
2319
     * - encoding: Set by user.
2320 6e0d8c06 Michael Niedermayer
     * - decoding: unused
2321
     */
2322
    int mb_lmin;
2323
2324
    /**
2325 f5bccd85 Diego Biurrun
     * maximum MB lagrange multipler
2326
     * - encoding: Set by user.
2327 6e0d8c06 Michael Niedermayer
     * - decoding: unused
2328
     */
2329
    int mb_lmax;
2330 09c3e44e Michael Niedermayer
2331
    /**
2332 115329f1 Diego Biurrun
     *
2333 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2334 09c3e44e Michael Niedermayer
     * - decoding: unused
2335
     */
2336
    int me_penalty_compensation;
2337 8c3eba7c Michael Niedermayer
2338
    /**
2339 115329f1 Diego Biurrun
     *
2340 8c3eba7c Michael Niedermayer
     * - encoding: unused
2341 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2342 8c3eba7c Michael Niedermayer
     */
2343
    enum AVDiscard skip_loop_filter;
2344
2345
    /**
2346 115329f1 Diego Biurrun
     *
2347 8c3eba7c Michael Niedermayer
     * - encoding: unused
2348 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2349 8c3eba7c Michael Niedermayer
     */
2350
    enum AVDiscard skip_idct;
2351
2352
    /**
2353 115329f1 Diego Biurrun
     *
2354 8c3eba7c Michael Niedermayer
     * - encoding: unused
2355 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2356 8c3eba7c Michael Niedermayer
     */
2357
    enum AVDiscard skip_frame;
2358 316a2ec8 Michael Niedermayer
2359
    /**
2360
     *
2361 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2362 316a2ec8 Michael Niedermayer
     * - decoding: unused
2363
     */
2364
    int bidir_refine;
2365 e8501c93 Michael Niedermayer
2366
    /**
2367
     *
2368 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2369 e8501c93 Michael Niedermayer
     * - decoding: unused
2370
     */
2371
    int brd_scale;
2372 58f7833e Robert Swain
2373
    /**
2374
     * constant rate factor - quality-based VBR - values ~correspond to qps
2375 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2376 58f7833e Robert Swain
     * - decoding: unused
2377
     */
2378 9f1c1c99 Luca Barbato
    float crf;
2379 58f7833e Robert Swain
2380
    /**
2381
     * constant quantization parameter rate control method
2382 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2383 58f7833e Robert Swain
     * - decoding: unused
2384
     */
2385
    int cqp;
2386
2387
    /**
2388 f5bccd85 Diego Biurrun
     * minimum GOP size
2389
     * - encoding: Set by user.
2390 58f7833e Robert Swain
     * - decoding: unused
2391
     */
2392
    int keyint_min;
2393
2394
    /**
2395
     * number of reference frames
2396 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2397 53d55e9e Michael Niedermayer
     * - decoding: Set by lavc.
2398 58f7833e Robert Swain
     */
2399
    int refs;
2400
2401
    /**
2402
     * chroma qp offset from luma
2403 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2404 58f7833e Robert Swain
     * - decoding: unused
2405
     */
2406
    int chromaoffset;
2407
2408
    /**
2409 f5bccd85 Diego Biurrun
     * Influences how often B-frames are used.
2410
     * - encoding: Set by user.
2411 58f7833e Robert Swain
     * - decoding: unused
2412
     */
2413
    int bframebias;
2414
2415
    /**
2416
     * trellis RD quantization
2417 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2418 58f7833e Robert Swain
     * - decoding: unused
2419
     */
2420
    int trellis;
2421
2422
    /**
2423 f5bccd85 Diego Biurrun
     * Reduce fluctuations in qp (before curve compression).
2424
     * - encoding: Set by user.
2425 58f7833e Robert Swain
     * - decoding: unused
2426
     */
2427
    float complexityblur;
2428
2429
    /**
2430
     * in-loop deblocking filter alphac0 parameter
2431
     * alpha is in the range -6...6
2432 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2433 58f7833e Robert Swain
     * - decoding: unused
2434
     */
2435
    int deblockalpha;
2436
2437
    /**
2438
     * in-loop deblocking filter beta parameter
2439
     * beta is in the range -6...6
2440 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2441 58f7833e Robert Swain
     * - decoding: unused
2442
     */
2443
    int deblockbeta;
2444
2445
    /**
2446
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
2447 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2448 58f7833e Robert Swain
     * - decoding: unused
2449
     */
2450
    int partitions;
2451 56cc85a0 Diego Biurrun
#define X264_PART_I4X4 0x001  /* Analyze i4x4 */
2452
#define X264_PART_I8X8 0x002  /* Analyze i8x8 (requires 8x8 transform) */
2453
#define X264_PART_P8X8 0x010  /* Analyze p16x8, p8x16 and p8x8 */
2454
#define X264_PART_P4X4 0x020  /* Analyze p8x4, p4x8, p4x4 */
2455
#define X264_PART_B8X8 0x100  /* Analyze b16x8, b8x16 and b8x8 */
2456 58f7833e Robert Swain
2457
    /**
2458 30ab4ded Francesco Cosoleto
     * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)
2459 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2460 58f7833e Robert Swain
     * - decoding: unused
2461
     */
2462
    int directpred;
2463 4f59b684 Diego Biurrun
2464 14f0c8e2 Luca Abeni
    /**
2465 02c164c1 Justin Ruggles
     * Audio cutoff bandwidth (0 means "automatic")
2466 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2467 14f0c8e2 Luca Abeni
     * - decoding: unused
2468
     */
2469
    int cutoff;
2470 39a64e30 Corey Hickey
2471
    /**
2472 f5bccd85 Diego Biurrun
     * Multiplied by qscale for each frame and added to scene_change_score.
2473
     * - encoding: Set by user.
2474 39a64e30 Corey Hickey
     * - decoding: unused
2475
     */
2476
    int scenechange_factor;
2477 1dd509b1 Michael Niedermayer
2478
    /**
2479
     *
2480 f5bccd85 Diego Biurrun
     * Note: Value depends upon the compare function used for fullpel ME.
2481
     * - encoding: Set by user.
2482 1dd509b1 Michael Niedermayer
     * - decoding: unused
2483
     */
2484
    int mv0_threshold;
2485 f9243d34 Corey Hickey
2486
    /**
2487 f5bccd85 Diego Biurrun
     * Adjusts sensitivity of b_frame_strategy 1.
2488
     * - encoding: Set by user.
2489 f9243d34 Corey Hickey
     * - decoding: unused
2490
     */
2491
    int b_sensitivity;
2492 a403fc03 Justin Ruggles
2493
    /**
2494 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2495 a403fc03 Justin Ruggles
     * - decoding: unused
2496
     */
2497
    int compression_level;
2498
#define FF_COMPRESSION_DEFAULT -1
2499
2500
    /**
2501
     * LPC coefficient precision - used by FLAC encoder
2502 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2503
     * - decoding: unused
2504 a403fc03 Justin Ruggles
     */
2505
    int lpc_coeff_precision;
2506
2507
    /**
2508 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2509
     * - decoding: unused
2510 a403fc03 Justin Ruggles
     */
2511
    int min_prediction_order;
2512
2513
    /**
2514 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2515
     * - decoding: unused
2516 a403fc03 Justin Ruggles
     */
2517
    int max_prediction_order;
2518
2519
    /**
2520
     * search method for selecting prediction order
2521 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2522
     * - decoding: unused
2523 a403fc03 Justin Ruggles
     */
2524
    int prediction_order_method;
2525
2526
    /**
2527 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2528
     * - decoding: unused
2529 a403fc03 Justin Ruggles
     */
2530
    int min_partition_order;
2531
2532
    /**
2533 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2534
     * - decoding: unused
2535 a403fc03 Justin Ruggles
     */
2536
    int max_partition_order;
2537 80d617f5 Baptiste Coudurier
2538
    /**
2539
     * GOP timecode frame start number, in non drop frame format
2540 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2541
     * - decoding: unused
2542 80d617f5 Baptiste Coudurier
     */
2543
    int64_t timecode_frame_start;
2544 b1ec601f Reimar Döffinger
2545 9f5ddd1e Anton Khirnov
#if FF_API_REQUEST_CHANNELS
2546 b1ec601f Reimar Döffinger
    /**
2547 85947156 Vitor Sessak
     * Decoder should decode to this many channels if it can (0 for default)
2548
     * - encoding: unused
2549
     * - decoding: Set by user.
2550 0d72e7d0 Peter Ross
     * @deprecated Deprecated in favor of request_channel_layout.
2551 b1ec601f Reimar Döffinger
     */
2552
    int request_channels;
2553 0d72e7d0 Peter Ross
#endif
2554 1408352a Justin Ruggles
2555
    /**
2556
     * Percentage of dynamic range compression to be applied by the decoder.
2557
     * The default value is 1.0, corresponding to full compression.
2558
     * - encoding: unused
2559
     * - decoding: Set by user.
2560
     */
2561
    float drc_scale;
2562 79de84f2 Michael Niedermayer
2563
    /**
2564
     * opaque 64bit number (generally a PTS) that will be reordered and
2565
     * output in AVFrame.reordered_opaque
2566 81c623fa Michael Niedermayer
     * @deprecated in favor of pkt_pts
2567 79de84f2 Michael Niedermayer
     * - encoding: unused
2568
     * - decoding: Set by user.
2569
     */
2570
    int64_t reordered_opaque;
2571 312420f3 Peter Ross
2572
    /**
2573
     * Bits per sample/pixel of internal libavcodec pixel/sample format.
2574 5d6e4c16 Stefano Sabatini
     * This field is applicable only when sample_fmt is AV_SAMPLE_FMT_S32.
2575 312420f3 Peter Ross
     * - encoding: set by user.
2576
     * - decoding: set by libavcodec.
2577
     */
2578
    int bits_per_raw_sample;
2579 0d72e7d0 Peter Ross
2580
    /**
2581
     * Audio channel layout.
2582
     * - encoding: set by user.
2583
     * - decoding: set by libavcodec.
2584
     */
2585
    int64_t channel_layout;
2586
2587
    /**
2588
     * Request decoder to use this channel layout if it can (0 for default)
2589
     * - encoding: unused
2590
     * - decoding: Set by user.
2591
     */
2592
    int64_t request_channel_layout;
2593 3bff4d8b Baptiste Coudurier
2594
    /**
2595
     * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
2596
     * - encoding: Set by user.
2597
     * - decoding: unused.
2598
     */
2599
    float rc_max_available_vbv_use;
2600
2601
    /**
2602
     * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow.
2603
     * - encoding: Set by user.
2604
     * - decoding: unused.
2605
     */
2606
    float rc_min_vbv_overflow_use;
2607 40e5d31b Gwenole Beauchesne
2608
    /**
2609
     * Hardware accelerator in use
2610
     * - encoding: unused.
2611
     * - decoding: Set by libavcodec
2612
     */
2613
    struct AVHWAccel *hwaccel;
2614 3797c74b Michael Niedermayer
2615
    /**
2616
     * For some codecs, the time base is closer to the field rate than the frame rate.
2617
     * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration
2618
     * if no telecine is used ...
2619
     *
2620
     * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2.
2621
     */
2622
    int ticks_per_frame;
2623