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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.
10 04d7f601 Diego Biurrun
 *
11 b78e7197 Diego Biurrun
 * 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
19 04d7f601 Diego Biurrun
 */
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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
26 f5bccd85 Diego Biurrun
 * external API header
27 36df8805 Michael Niedermayer
 */
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29 c60208e7 Diego Biurrun
#include <errno.h>
30 262d1c5d Stefano Sabatini
#include "libavcore/samplefmt.h"
31 76a448ed Måns Rullgård
#include "libavutil/avutil.h"
32 7160bb71 Stefano Sabatini
#include "libavutil/cpu.h"
33 de6d9b64 Fabrice Bellard
34 dd1c8f3e Luca Abeni
#define LIBAVCODEC_VERSION_MAJOR 52
35 393cbb96 Michael Niedermayer
#define LIBAVCODEC_VERSION_MINOR 105
36 060ec0a8 Anssi Hannula
#define LIBAVCODEC_VERSION_MICRO  0
37 e97ac1e6 Måns Rullgård
38 800c289a Måns Rullgård
#define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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                                               LIBAVCODEC_VERSION_MINOR, \
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                                               LIBAVCODEC_VERSION_MICRO)
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#define LIBAVCODEC_VERSION      AV_VERSION(LIBAVCODEC_VERSION_MAJOR,    \
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                                           LIBAVCODEC_VERSION_MINOR,    \
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                                           LIBAVCODEC_VERSION_MICRO)
44 bb270c08 Diego Biurrun
#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
45 5aa083ee Michael Niedermayer
46 bb270c08 Diego Biurrun
#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
47 ce2749d2 Alex Beregszaszi
48 eda7c983 Aurelien Jacobs
/**
49
 * Those FF_API_* defines are not part of public API.
50
 * They may change, break or disappear at any time.
51
 */
52
#ifndef FF_API_PALETTE_CONTROL
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#define FF_API_PALETTE_CONTROL  (LIBAVCODEC_VERSION_MAJOR < 54)
54
#endif
55 8ef38f3f Stefano Sabatini
#ifndef FF_API_MM_FLAGS
56 7160bb71 Stefano Sabatini
#define FF_API_MM_FLAGS         (LIBAVCODEC_VERSION_MAJOR < 53)
57 8ef38f3f Stefano Sabatini
#endif
58 e44c0156 Stefano Sabatini
#ifndef FF_API_OPT_SHOW
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#define FF_API_OPT_SHOW         (LIBAVCODEC_VERSION_MAJOR < 53)
60
#endif
61 a377cfa6 Aurelien Jacobs
#ifndef FF_API_AUDIO_OLD
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#define FF_API_AUDIO_OLD        (LIBAVCODEC_VERSION_MAJOR < 53)
63
#endif
64 164bc38c Aurelien Jacobs
#ifndef FF_API_VIDEO_OLD
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#define FF_API_VIDEO_OLD        (LIBAVCODEC_VERSION_MAJOR < 53)
66
#endif
67 448ce925 Aurelien Jacobs
#ifndef FF_API_SUBTITLE_OLD
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#define FF_API_SUBTITLE_OLD     (LIBAVCODEC_VERSION_MAJOR < 53)
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#endif
70 0743de4f Aurelien Jacobs
#ifndef FF_API_USE_LPC
71
#define FF_API_USE_LPC          (LIBAVCODEC_VERSION_MAJOR < 53)
72
#endif
73 838dc131 Aurelien Jacobs
#ifndef FF_API_SET_STRING_OLD
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#define FF_API_SET_STRING_OLD   (LIBAVCODEC_VERSION_MAJOR < 53)
75
#endif
76 59b4e5ba Aurelien Jacobs
#ifndef FF_API_INOFFICIAL
77
#define FF_API_INOFFICIAL       (LIBAVCODEC_VERSION_MAJOR < 53)
78
#endif
79 262d1c5d Stefano Sabatini
#ifndef FF_API_OLD_SAMPLE_FMT
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#define FF_API_OLD_SAMPLE_FMT   (LIBAVCODEC_VERSION_MAJOR < 53)
81
#endif
82 176a6157 Stefano Sabatini
#ifndef FF_API_OLD_AUDIOCONVERT
83 63e8d976 Stefano Sabatini
#define FF_API_OLD_AUDIOCONVERT (LIBAVCODEC_VERSION_MAJOR < 53)
84 176a6157 Stefano Sabatini
#endif
85 eda7c983 Aurelien Jacobs
86 372c3f82 Michael Niedermayer
#if LIBAVCODEC_VERSION_MAJOR < 53
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#   define FF_INTERNALC_MEM_TYPE unsigned int
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#else
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#   define FF_INTERNALC_MEM_TYPE size_t
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#endif
91
92 7ebf5927 Michael Niedermayer
/**
93 48966b02 Måns Rullgård
 * Identify the syntax and semantics of the bitstream.
94 6b0cdb6e Nicolas George
 * The principle is roughly:
95
 * Two decoders with the same ID can decode the same streams.
96
 * Two encoders with the same ID can encode compatible streams.
97
 * There may be slight deviations from the principle due to implementation
98
 * details.
99 7ebf5927 Michael Niedermayer
 *
100 f5bccd85 Diego Biurrun
 * If you add a codec ID to this list, add it so that
101
 * 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.
103 7ebf5927 Michael Niedermayer
 */
104 de6d9b64 Fabrice Bellard
enum CodecID {
105 115329f1 Diego Biurrun
    CODEC_ID_NONE,
106 ba0dabbf Diego Biurrun
107
    /* video codecs */
108 de6d9b64 Fabrice Bellard
    CODEC_ID_MPEG1VIDEO,
109 0e373b95 Michael Niedermayer
    CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
110 fb364ada Ivan Kalvachev
    CODEC_ID_MPEG2VIDEO_XVMC,
111 c6148de2 Michael Niedermayer
    CODEC_ID_H261,
112 de6d9b64 Fabrice Bellard
    CODEC_ID_H263,
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    CODEC_ID_RV10,
114 68b94c35 Michael Niedermayer
    CODEC_ID_RV20,
115 de6d9b64 Fabrice Bellard
    CODEC_ID_MJPEG,
116 b135d9fb Alex Beregszaszi
    CODEC_ID_MJPEGB,
117 b1e6b355 Michael Niedermayer
    CODEC_ID_LJPEG,
118 5e83dec4 Alex Beregszaszi
    CODEC_ID_SP5X,
119 5639729b Michael Niedermayer
    CODEC_ID_JPEGLS,
120 bf89e6b1 Fabrice Bellard
    CODEC_ID_MPEG4,
121 de6d9b64 Fabrice Bellard
    CODEC_ID_RAWVIDEO,
122 84afee34 Michael Niedermayer
    CODEC_ID_MSMPEG4V1,
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    CODEC_ID_MSMPEG4V2,
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    CODEC_ID_MSMPEG4V3,
125 e1a9dbff Michael Niedermayer
    CODEC_ID_WMV1,
126 b50eef3a Michael Niedermayer
    CODEC_ID_WMV2,
127 de6d9b64 Fabrice Bellard
    CODEC_ID_H263P,
128
    CODEC_ID_H263I,
129 d4f5d74a Garrick Meeker
    CODEC_ID_FLV1,
130 be8ffec9 Nick Kurshev
    CODEC_ID_SVQ1,
131 8b82a956 Michael Niedermayer
    CODEC_ID_SVQ3,
132 020fcc94 Fabrice Bellard
    CODEC_ID_DVVIDEO,
133 11f18faf Michael Niedermayer
    CODEC_ID_HUFFYUV,
134 f70f7c6d Michael Niedermayer
    CODEC_ID_CYUV,
135 0da71265 Michael Niedermayer
    CODEC_ID_H264,
136 deabd4fd Mike Melanson
    CODEC_ID_INDEO3,
137 d86053a4 Mike Melanson
    CODEC_ID_VP3,
138 f44ee2c3 Alex Beregszaszi
    CODEC_ID_THEORA,
139 3d2e8cce Michael Niedermayer
    CODEC_ID_ASV1,
140 9b56edf5 Michael Niedermayer
    CODEC_ID_ASV2,
141 5e20f836 Michael Niedermayer
    CODEC_ID_FFV1,
142 e2a7bb28 Mike Melanson
    CODEC_ID_4XM,
143 be3564ed Michael Niedermayer
    CODEC_ID_VCR1,
144 3aff069b Alex Beregszaszi
    CODEC_ID_CLJR,
145 c3bf0288 Michael Niedermayer
    CODEC_ID_MDEC,
146 3ef8be2b Mike Melanson
    CODEC_ID_ROQ,
147
    CODEC_ID_INTERPLAY_VIDEO,
148 9937e686 Mike Melanson
    CODEC_ID_XAN_WC3,
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    CODEC_ID_XAN_WC4,
150 2fdf638b Mike Melanson
    CODEC_ID_RPZA,
151
    CODEC_ID_CINEPAK,
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    CODEC_ID_WS_VQA,
153
    CODEC_ID_MSRLE,
154
    CODEC_ID_MSVIDEO1,
155 4120a53a Mike Melanson
    CODEC_ID_IDCIN,
156 1dc1ed99 Roberto Togni
    CODEC_ID_8BPS,
157 11e29a41 Mike Melanson
    CODEC_ID_SMC,
158 42cad81a Mike Melanson
    CODEC_ID_FLIC,
159 9a4117d5 Mike Melanson
    CODEC_ID_TRUEMOTION1,
160 fafa0b75 Mike Melanson
    CODEC_ID_VMDVIDEO,
161 a273bbfb Roberto Togni
    CODEC_ID_MSZH,
162
    CODEC_ID_ZLIB,
163 070ed1bc Mike Melanson
    CODEC_ID_QTRLE,
164 791e7b83 Michael Niedermayer
    CODEC_ID_SNOW,
165 9d53d58e Mike Melanson
    CODEC_ID_TSCC,
166 d0a0bbd2 Mike Melanson
    CODEC_ID_ULTI,
167 d08d7142 Mike Melanson
    CODEC_ID_QDRAW,
168 ab711b3c Mike Melanson
    CODEC_ID_VIXL,
169 acfd8f0f Mike Melanson
    CODEC_ID_QPEG,
170 382b5b3a Aurelien Jacobs
#if LIBAVCODEC_VERSION_MAJOR < 53
171 17179d2d Michael Niedermayer
    CODEC_ID_XVID,
172 382b5b3a Aurelien Jacobs
#endif
173 17179d2d Michael Niedermayer
    CODEC_ID_PNG,
174
    CODEC_ID_PPM,
175
    CODEC_ID_PBM,
176
    CODEC_ID_PGM,
177
    CODEC_ID_PGMYUV,
178
    CODEC_ID_PAM,
179 f37b9768 Loren Merritt
    CODEC_ID_FFVHUFF,
180 3f05305d Michael Niedermayer
    CODEC_ID_RV30,
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    CODEC_ID_RV40,
182 10b9c374 Kostya Shishkov
    CODEC_ID_VC1,
183 21aa398f Alex Beregszaszi
    CODEC_ID_WMV3,
184 9c7fb608 Mike Melanson
    CODEC_ID_LOCO,
185 a8a15e9d Mike Melanson
    CODEC_ID_WNV1,
186 589f8220 Mike Melanson
    CODEC_ID_AASC,
187 856dbbff Michael Niedermayer
    CODEC_ID_INDEO2,
188 b81f8949 Mike Melanson
    CODEC_ID_FRAPS,
189 64af6168 Mike Melanson
    CODEC_ID_TRUEMOTION2,
190 9fa62f2a Måns Rullgård
    CODEC_ID_BMP,
191 e0f80bd7 Reimar Döffinger
    CODEC_ID_CSCD,
192 4e114829 Mike Melanson
    CODEC_ID_MMVIDEO,
193 9c8d8e84 Mike Melanson
    CODEC_ID_ZMBV,
194 26376701 Mike Melanson
    CODEC_ID_AVS,
195 348efc18 Kostya Shishkov
    CODEC_ID_SMACKVIDEO,
196 dfca23e3 Reimar Döffinger
    CODEC_ID_NUV,
197 fd7b1991 Kostya Shishkov
    CODEC_ID_KMVC,
198 0919e788 Benjamin Larsson
    CODEC_ID_FLASHSV,
199 20ffddb9 Stefan Gehrer
    CODEC_ID_CAVS,
200 f31065f6 Baptiste Coudurier
    CODEC_ID_JPEG2000,
201 eb57c889 Kostya Shishkov
    CODEC_ID_VMNC,
202 5ce117c3 Aurelien Jacobs
    CODEC_ID_VP5,
203
    CODEC_ID_VP6,
204
    CODEC_ID_VP6F,
205 3689cf16 Kostya Shishkov
    CODEC_ID_TARGA,
206 72450e50 Baptiste Coudurier
    CODEC_ID_DSICINVIDEO,
207 29f86228 Baptiste Coudurier
    CODEC_ID_TIERTEXSEQVIDEO,
208 a991b1fe Kostya Shishkov
    CODEC_ID_TIFF,
209 06d392a7 Baptiste Coudurier
    CODEC_ID_GIF,
210 3edeab82 Panagiotis Issaris
    CODEC_ID_FFH264,
211 33a0dd37 Kostya Shishkov
    CODEC_ID_DXA,
212 52b6bad2 Baptiste Coudurier
    CODEC_ID_DNXHD,
213 efb0c399 Diego Biurrun
    CODEC_ID_THP,
214 2d99eed1 Xiaohui Sun
    CODEC_ID_SGI,
215 9a0ddd09 Anssi Hannula
    CODEC_ID_C93,
216 1e6c6759 Nicholas Tung
    CODEC_ID_BETHSOFTVID,
217 b46d68c6 Ivo van Poorten
    CODEC_ID_PTX,
218 1ca779e7 Ivo van Poorten
    CODEC_ID_TXD,
219 91fc2cf1 Aurelien Jacobs
    CODEC_ID_VP6A,
220 8787d837 Vladimir Voroshilov
    CODEC_ID_AMV,
221 66f7679c Kostya Shishkov
    CODEC_ID_VB,
222 b4abe1d1 Ivo van Poorten
    CODEC_ID_PCX,
223 d43df959 Ivo van Poorten
    CODEC_ID_SUNRAST,
224 800b9c24 Benjamin Larsson
    CODEC_ID_INDEO4,
225
    CODEC_ID_INDEO5,
226 a7129de5 Ramiro Polla
    CODEC_ID_MIMIC,
227 975cdc8f Sascha Sommer
    CODEC_ID_RL2,
228 cb21e0a7 Jai Menon
    CODEC_ID_8SVX_EXP,
229
    CODEC_ID_8SVX_FIB,
230 40d26273 Eli Friedman
    CODEC_ID_ESCAPE124,
231 782a58ec Michael Niedermayer
    CODEC_ID_DIRAC,
232 b64c096b Sisir Koppaka
    CODEC_ID_BFI,
233 495900f7 Peter Ross
    CODEC_ID_CMV,
234 974e0eee Gregory Montoir
    CODEC_ID_MOTIONPIXELS,
235 cfc78718 Peter Ross
    CODEC_ID_TGV,
236 42b30357 Peter Ross
    CODEC_ID_TGQ,
237 d8964f3a Peter Ross
    CODEC_ID_TQI,
238 c21fbefb Kostya Shishkov
    CODEC_ID_AURA,
239
    CODEC_ID_AURA2,
240 97f92143 Michael Niedermayer
    CODEC_ID_V210X,
241 a1fd2bc3 Daniel Verkamp
    CODEC_ID_TMV,
242 ca0bb1c4 Baptiste Coudurier
    CODEC_ID_V210,
243 94d3d6a4 Jimmy Christensen
    CODEC_ID_DPX,
244 c63ea92b Peter Ross
    CODEC_ID_MAD,
245 d8b35b85 Reimar Döffinger
    CODEC_ID_FRWU,
246 0aa6a518 Daniel Verkamp
    CODEC_ID_FLASHSV2,
247 a3d995c1 Michael Tison
    CODEC_ID_CDGRAPHICS,
248 4aaab0a3 Reimar Döffinger
    CODEC_ID_R210,
249 a1ae40fd Peter Ross
    CODEC_ID_ANM,
250 4e5f42dd Daniel Verkamp
    CODEC_ID_BINKVIDEO,
251 b9e06ddd Peter Ross
    CODEC_ID_IFF_ILBM,
252
    CODEC_ID_IFF_BYTERUN1,
253 bf354122 Daniel Verkamp
    CODEC_ID_KGV1,
254 148bcae9 Mohamed Naufal
    CODEC_ID_YOP,
255 a98c2dfa Google
    CODEC_ID_VP8,
256 a526d619 Peter Ross
    CODEC_ID_PICTOR,
257 beaa963c Peter Ross
    CODEC_ID_ANSI,
258 40c5ee99 Tobias Bindhammer
    CODEC_ID_A64_MULTI,
259
    CODEC_ID_A64_MULTI5,
260 43836928 Zhou Zongyi
    CODEC_ID_R10K,
261 9d09ebf1 Anatoly Nenashev
    CODEC_ID_MXPEG,
262 40c5ee99 Tobias Bindhammer
263 f5bccd85 Diego Biurrun
    /* various PCM "codecs" */
264 17179d2d Michael Niedermayer
    CODEC_ID_PCM_S16LE= 0x10000,
265 a96b68b7 Fabrice Bellard
    CODEC_ID_PCM_S16BE,
266
    CODEC_ID_PCM_U16LE,
267
    CODEC_ID_PCM_U16BE,
268
    CODEC_ID_PCM_S8,
269
    CODEC_ID_PCM_U8,
270
    CODEC_ID_PCM_MULAW,
271
    CODEC_ID_PCM_ALAW,
272 b461b3bc Reimar Döffinger
    CODEC_ID_PCM_S32LE,
273
    CODEC_ID_PCM_S32BE,
274
    CODEC_ID_PCM_U32LE,
275
    CODEC_ID_PCM_U32BE,
276
    CODEC_ID_PCM_S24LE,
277
    CODEC_ID_PCM_S24BE,
278
    CODEC_ID_PCM_U24LE,
279
    CODEC_ID_PCM_U24BE,
280
    CODEC_ID_PCM_S24DAUD,
281 a11c2a2c Michael Niedermayer
    CODEC_ID_PCM_ZORK,
282 725d86bf Aurelien Jacobs
    CODEC_ID_PCM_S16LE_PLANAR,
283 1472b7dd Lars Täuber
    CODEC_ID_PCM_DVD,
284 aa29709e Peter Ross
    CODEC_ID_PCM_F32BE,
285 143a5d6f Peter Ross
    CODEC_ID_PCM_F32LE,
286
    CODEC_ID_PCM_F64BE,
287
    CODEC_ID_PCM_F64LE,
288 5dd3707b Christian Schmidt
    CODEC_ID_PCM_BLURAY,
289 fbeabfca Tomas Härdin
    CODEC_ID_PCM_LXF,
290 0147f198 François Revol
291 f5bccd85 Diego Biurrun
    /* various ADPCM codecs */
292 17179d2d Michael Niedermayer
    CODEC_ID_ADPCM_IMA_QT= 0x11000,
293 0147f198 François Revol
    CODEC_ID_ADPCM_IMA_WAV,
294 9937e686 Mike Melanson
    CODEC_ID_ADPCM_IMA_DK3,
295
    CODEC_ID_ADPCM_IMA_DK4,
296 2fdf638b Mike Melanson
    CODEC_ID_ADPCM_IMA_WS,
297 7d8379f2 Mike Melanson
    CODEC_ID_ADPCM_IMA_SMJPEG,
298 0147f198 François Revol
    CODEC_ID_ADPCM_MS,
299 e2a7bb28 Mike Melanson
    CODEC_ID_ADPCM_4XM,
300 fc384777 Mike Melanson
    CODEC_ID_ADPCM_XA,
301
    CODEC_ID_ADPCM_ADX,
302 7d8379f2 Mike Melanson
    CODEC_ID_ADPCM_EA,
303 e5966052 Roman Shaposhnik
    CODEC_ID_ADPCM_G726,
304 b3bfb299 Mike Melanson
    CODEC_ID_ADPCM_CT,
305 659c3692 Alex Beregszaszi
    CODEC_ID_ADPCM_SWF,
306 2ff4524e Vidar Madsen
    CODEC_ID_ADPCM_YAMAHA,
307 2433f24f Aurelien Jacobs
    CODEC_ID_ADPCM_SBPRO_4,
308
    CODEC_ID_ADPCM_SBPRO_3,
309
    CODEC_ID_ADPCM_SBPRO_2,
310 d1e0d21f Marco Gerards
    CODEC_ID_ADPCM_THP,
311 3a7f5d07 Vitor Sessak
    CODEC_ID_ADPCM_IMA_AMV,
312 e7583962 Peter Ross
    CODEC_ID_ADPCM_EA_R1,
313
    CODEC_ID_ADPCM_EA_R3,
314
    CODEC_ID_ADPCM_EA_R2,
315 7bb65d89 Peter Ross
    CODEC_ID_ADPCM_IMA_EA_SEAD,
316 fac84d3c Peter Ross
    CODEC_ID_ADPCM_IMA_EA_EACS,
317 271b4095 Aurelien Jacobs
    CODEC_ID_ADPCM_EA_XAS,
318 861c63a2 Robert Marston
    CODEC_ID_ADPCM_EA_MAXIS_XA,
319 055dc116 Stefan Gehrer
    CODEC_ID_ADPCM_IMA_ISS,
320 58e37eaf Martin Storsjö
    CODEC_ID_ADPCM_G722,
321 891f64b3 joca@rixmail.se
322 17179d2d Michael Niedermayer
    /* AMR */
323
    CODEC_ID_AMR_NB= 0x12000,
324 d663a1fd Michael Niedermayer
    CODEC_ID_AMR_WB,
325
326 b8414bbd Nick Kurshev
    /* RealAudio codecs*/
327 17179d2d Michael Niedermayer
    CODEC_ID_RA_144= 0x13000,
328 b8414bbd Nick Kurshev
    CODEC_ID_RA_288,
329 3ef8be2b Mike Melanson
330
    /* various DPCM codecs */
331 17179d2d Michael Niedermayer
    CODEC_ID_ROQ_DPCM= 0x14000,
332 3ef8be2b Mike Melanson
    CODEC_ID_INTERPLAY_DPCM,
333 9937e686 Mike Melanson
    CODEC_ID_XAN_DPCM,
334 d08d7142 Mike Melanson
    CODEC_ID_SOL_DPCM,
335 115329f1 Diego Biurrun
336 ba0dabbf Diego Biurrun
    /* audio codecs */
337 17179d2d Michael Niedermayer
    CODEC_ID_MP2= 0x15000,
338 0e373b95 Michael Niedermayer
    CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
339 17179d2d Michael Niedermayer
    CODEC_ID_AAC,
340
    CODEC_ID_AC3,
341
    CODEC_ID_DTS,
342
    CODEC_ID_VORBIS,
343
    CODEC_ID_DVAUDIO,
344
    CODEC_ID_WMAV1,
345
    CODEC_ID_WMAV2,
346
    CODEC_ID_MACE3,
347
    CODEC_ID_MACE6,
348
    CODEC_ID_VMDAUDIO,
349
    CODEC_ID_SONIC,
350
    CODEC_ID_SONIC_LS,
351 ac2570a8 Michael Niedermayer
    CODEC_ID_FLAC,
352 1ede228a Roberto Togni
    CODEC_ID_MP3ADU,
353 d2a7718d Roberto Togni
    CODEC_ID_MP3ON4,
354 85ad5695 Michael Niedermayer
    CODEC_ID_SHORTEN,
355 5df8a0c6 Michael Niedermayer
    CODEC_ID_ALAC,
356 034eeaa1 Mike Melanson
    CODEC_ID_WESTWOOD_SND1,
357 0e373b95 Michael Niedermayer
    CODEC_ID_GSM, ///< as in Berlin toast format
358 d9b1c197 Roberto Togni
    CODEC_ID_QDM2,
359 e0f7e329 Benjamin Larsson
    CODEC_ID_COOK,
360 bf3027c8 Diego Biurrun
    CODEC_ID_TRUESPEECH,
361 a24c4a2a Alex Beregszaszi
    CODEC_ID_TTA,
362 348efc18 Kostya Shishkov
    CODEC_ID_SMACKAUDIO,
363 6c496518 Benjamin Larsson
    CODEC_ID_QCELP,
364 730581f3 Kostya Shishkov
    CODEC_ID_WAVPACK,
365 72450e50 Baptiste Coudurier
    CODEC_ID_DSICINAUDIO,
366 84ed36da Kostya Shishkov
    CODEC_ID_IMC,
367 185c7b6b Kostya Shishkov
    CODEC_ID_MUSEPACK7,
368 aad512b4 Michael Niedermayer
    CODEC_ID_MLP,
369 f5bccd85 Diego Biurrun
    CODEC_ID_GSM_MS, /* as found in WAV */
370 10e26bc7 Benjamin Larsson
    CODEC_ID_ATRAC3,
371 8950f828 Michael Niedermayer
    CODEC_ID_VOXWARE,
372 bf4a1f17 Kostya Shishkov
    CODEC_ID_APE,
373 636b13c5 Benjamin Larsson
    CODEC_ID_NELLYMOSER,
374 12877faf Kostya Shishkov
    CODEC_ID_MUSEPACK8,
375 cb4ddf77 Reimar Döffinger
    CODEC_ID_SPEEX,
376 7bb8d51c Benjamin Larsson
    CODEC_ID_WMAVOICE,
377
    CODEC_ID_WMAPRO,
378 800b9c24 Benjamin Larsson
    CODEC_ID_WMALOSSLESS,
379 b339f0c6 Benjamin Larsson
    CODEC_ID_ATRAC3P,
380 2988c93d Justin Ruggles
    CODEC_ID_EAC3,
381 faeedbbb Benjamin Larsson
    CODEC_ID_SIPR,
382 7f507b2d Michael Niedermayer
    CODEC_ID_MP1,
383 616e899c Vitor Sessak
    CODEC_ID_TWINVQ,
384 9ba4821d Ramiro Polla
    CODEC_ID_TRUEHD,
385 b24bbbb4 Jai Menon
    CODEC_ID_MP4ALS,
386 223e8df1 Benjamin Larsson
    CODEC_ID_ATRAC1,
387 4e5f42dd Daniel Verkamp
    CODEC_ID_BINKAUDIO_RDFT,
388
    CODEC_ID_BINKAUDIO_DCT,
389 136e19e1 Janne Grunau
    CODEC_ID_AAC_LATM,
390 115329f1 Diego Biurrun
391 240c1657 Fabrice Bellard
    /* subtitle codecs */
392 115329f1 Diego Biurrun
    CODEC_ID_DVD_SUBTITLE= 0x17000,
393
    CODEC_ID_DVB_SUBTITLE,
394 0e373b95 Michael Niedermayer
    CODEC_ID_TEXT,  ///< raw UTF-8 text
395 7e2643ae Reimar Döffinger
    CODEC_ID_XSUB,
396 f9a9b350 Evgeniy Stepanov
    CODEC_ID_SSA,
397 cc8c2c6a Reimar Döffinger
    CODEC_ID_MOV_TEXT,
398 c58b82a2 Stephen Backway
    CODEC_ID_HDMV_PGS_SUBTITLE,
399 e58992e4 Francesco Lavra
    CODEC_ID_DVB_TELETEXT,
400 ba2c508d Aurelien Jacobs
    CODEC_ID_SRT,
401 115329f1 Diego Biurrun
402 7ce68923 Diego Biurrun
    /* other specific kind of codecs (generally used for attachments) */
403 f8d7c9d3 Evgeniy Stepanov
    CODEC_ID_TTF= 0x18000,
404
405 0bef08e5 Michael Niedermayer
    CODEC_ID_PROBE= 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
406
407 0e373b95 Michael Niedermayer
    CODEC_ID_MPEG2TS= 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
408 f5bccd85 Diego Biurrun
                                * stream (only used by libavformat) */
409 fd5b124d Anton Khirnov
    CODEC_ID_FFMETADATA=0x21000,   ///< Dummy codec for streams containing only metadata information.
410 de6d9b64 Fabrice Bellard
};
411 dcedf586 Fabrice Bellard
412 72415b2a Stefano Sabatini
#if LIBAVCODEC_VERSION_MAJOR < 53
413
#define CodecType AVMediaType
414
415
#define CODEC_TYPE_UNKNOWN    AVMEDIA_TYPE_UNKNOWN
416
#define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
417
#define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
418
#define CODEC_TYPE_DATA       AVMEDIA_TYPE_DATA
419
#define CODEC_TYPE_SUBTITLE   AVMEDIA_TYPE_SUBTITLE
420
#define CODEC_TYPE_ATTACHMENT AVMEDIA_TYPE_ATTACHMENT
421
#define CODEC_TYPE_NB         AVMEDIA_TYPE_NB
422
#endif
423
424 262d1c5d Stefano Sabatini
#if FF_API_OLD_SAMPLE_FMT
425
#define SampleFormat AVSampleFormat
426
427
#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE
428
#define SAMPLE_FMT_U8   AV_SAMPLE_FMT_U8
429
#define SAMPLE_FMT_S16  AV_SAMPLE_FMT_S16
430
#define SAMPLE_FMT_S32  AV_SAMPLE_FMT_S32
431
#define SAMPLE_FMT_FLT  AV_SAMPLE_FMT_FLT
432
#define SAMPLE_FMT_DBL  AV_SAMPLE_FMT_DBL
433
#define SAMPLE_FMT_NB   AV_SAMPLE_FMT_NB
434
#endif
435 a96b68b7 Fabrice Bellard
436 176a6157 Stefano Sabatini
#if FF_API_OLD_AUDIOCONVERT
437
#include "libavcore/audioconvert.h"
438
439 0d72e7d0 Peter Ross
/* Audio channel masks */
440 176a6157 Stefano Sabatini
#define CH_FRONT_LEFT            AV_CH_FRONT_LEFT
441
#define CH_FRONT_RIGHT           AV_CH_FRONT_RIGHT
442
#define CH_FRONT_CENTER          AV_CH_FRONT_CENTER
443
#define CH_LOW_FREQUENCY         AV_CH_LOW_FREQUENCY
444
#define CH_BACK_LEFT             AV_CH_BACK_LEFT
445
#define CH_BACK_RIGHT            AV_CH_BACK_RIGHT
446
#define CH_FRONT_LEFT_OF_CENTER  AV_CH_FRONT_LEFT_OF_CENTER
447
#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER
448
#define CH_BACK_CENTER           AV_CH_BACK_CENTER
449
#define CH_SIDE_LEFT             AV_CH_SIDE_LEFT
450
#define CH_SIDE_RIGHT            AV_CH_SIDE_RIGHT
451
#define CH_TOP_CENTER            AV_CH_TOP_CENTER
452
#define CH_TOP_FRONT_LEFT        AV_CH_TOP_FRONT_LEFT
453
#define CH_TOP_FRONT_CENTER      AV_CH_TOP_FRONT_CENTER
454
#define CH_TOP_FRONT_RIGHT       AV_CH_TOP_FRONT_RIGHT
455
#define CH_TOP_BACK_LEFT         AV_CH_TOP_BACK_LEFT
456
#define CH_TOP_BACK_CENTER       AV_CH_TOP_BACK_CENTER
457
#define CH_TOP_BACK_RIGHT        AV_CH_TOP_BACK_RIGHT
458
#define CH_STEREO_LEFT           AV_CH_STEREO_LEFT
459
#define CH_STEREO_RIGHT          AV_CH_STEREO_RIGHT
460 0d72e7d0 Peter Ross
461 31557166 Justin Ruggles
/** Channel mask value used for AVCodecContext.request_channel_layout
462
    to indicate that the user requests the channel order of the decoder output
463
    to be the native codec channel order. */
464 176a6157 Stefano Sabatini
#define CH_LAYOUT_NATIVE         AV_CH_LAYOUT_NATIVE
465 31557166 Justin Ruggles
466 0d72e7d0 Peter Ross
/* Audio channel convenience macros */
467 176a6157 Stefano Sabatini
#define CH_LAYOUT_MONO           AV_CH_LAYOUT_MONO
468
#define CH_LAYOUT_STEREO         AV_CH_LAYOUT_STEREO
469
#define CH_LAYOUT_2_1            AV_CH_LAYOUT_2_1
470
#define CH_LAYOUT_SURROUND       AV_CH_LAYOUT_SURROUND
471
#define CH_LAYOUT_4POINT0        AV_CH_LAYOUT_4POINT0
472
#define CH_LAYOUT_2_2            AV_CH_LAYOUT_2_2
473
#define CH_LAYOUT_QUAD           AV_CH_LAYOUT_QUAD
474
#define CH_LAYOUT_5POINT0        AV_CH_LAYOUT_5POINT0
475
#define CH_LAYOUT_5POINT1        AV_CH_LAYOUT_5POINT1
476
#define CH_LAYOUT_5POINT0_BACK   AV_CH_LAYOUT_5POINT0_BACK
477
#define CH_LAYOUT_5POINT1_BACK   AV_CH_LAYOUT_5POINT1_BACK
478
#define CH_LAYOUT_7POINT0        AV_CH_LAYOUT_7POINT0
479
#define CH_LAYOUT_7POINT1        AV_CH_LAYOUT_7POINT1
480
#define CH_LAYOUT_7POINT1_WIDE   AV_CH_LAYOUT_7POINT1_WIDE
481
#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX
482
#endif
483 0d72e7d0 Peter Ross
484 de6d9b64 Fabrice Bellard
/* in bytes */
485 8170e5fb Alex Beregszaszi
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
486 de6d9b64 Fabrice Bellard
487 d7425f59 Michael Niedermayer
/**
488 cf713bb8 Michael Niedermayer
 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
489 171b7b91 Alex Converse
 * This is mainly needed because some optimized bitstream readers read
490
 * 32 or 64 bit at once and could read over the end.<br>
491 f5bccd85 Diego Biurrun
 * Note: If the first 23 bits of the additional bytes are not 0, then damaged
492
 * MPEG bitstreams could cause overread and segfault.
493 d7425f59 Michael Niedermayer
 */
494 171b7b91 Alex Converse
#define FF_INPUT_BUFFER_PADDING_SIZE 8
495 d7425f59 Michael Niedermayer
496 0ecca7a4 Michael Niedermayer
/**
497 f5bccd85 Diego Biurrun
 * minimum encoding buffer size
498
 * Used to avoid some checks during header writing.
499 0ecca7a4 Michael Niedermayer
 */
500
#define FF_MIN_BUFFER_SIZE 16384
501
502 47146dfb Michael Niedermayer
503 0e373b95 Michael Niedermayer
/**
504 bafc102b Michael Niedermayer
 * motion estimation type.
505 0e373b95 Michael Niedermayer
 */
506 e4986da9 Juanjo
enum Motion_Est_ID {
507 9b4dd1b8 Michael Niedermayer
    ME_ZERO = 1,    ///< no search, that is use 0,0 vector whenever one is needed
508 e4986da9 Juanjo
    ME_FULL,
509
    ME_LOG,
510
    ME_PHODS,
511 9b4dd1b8 Michael Niedermayer
    ME_EPZS,        ///< enhanced predictive zonal search
512
    ME_X1,          ///< reserved for experiments
513
    ME_HEX,         ///< hexagon based search
514
    ME_UMH,         ///< uneven multi-hexagon search
515
    ME_ITER,        ///< iterative search
516 359bbdab Loren Merritt
    ME_TESA,        ///< transformed exhaustive search algorithm
517 e4986da9 Juanjo
};
518
519 8c3eba7c Michael Niedermayer
enum AVDiscard{
520 f5bccd85 Diego Biurrun
    /* We leave some space between them for extensions (drop some
521
     * keyframes for intra-only or drop just some bidir frames). */
522 8c3eba7c Michael Niedermayer
    AVDISCARD_NONE   =-16, ///< discard nothing
523
    AVDISCARD_DEFAULT=  0, ///< discard useless packets like 0 size packets in avi
524
    AVDISCARD_NONREF =  8, ///< discard all non reference
525
    AVDISCARD_BIDIR  = 16, ///< discard all bidirectional frames
526
    AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
527
    AVDISCARD_ALL    = 48, ///< discard all
528
};
529
530 4ee6a5c1 Michael Niedermayer
enum AVColorPrimaries{
531
    AVCOL_PRI_BT709      =1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
532
    AVCOL_PRI_UNSPECIFIED=2,
533
    AVCOL_PRI_BT470M     =4,
534
    AVCOL_PRI_BT470BG    =5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
535
    AVCOL_PRI_SMPTE170M  =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
536
    AVCOL_PRI_SMPTE240M  =7, ///< functionally identical to above
537
    AVCOL_PRI_FILM       =8,
538
    AVCOL_PRI_NB           , ///< Not part of ABI
539
};
540
541
enum AVColorTransferCharacteristic{
542
    AVCOL_TRC_BT709      =1, ///< also ITU-R BT1361
543
    AVCOL_TRC_UNSPECIFIED=2,
544
    AVCOL_TRC_GAMMA22    =4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
545
    AVCOL_TRC_GAMMA28    =5, ///< also ITU-R BT470BG
546
    AVCOL_TRC_NB           , ///< Not part of ABI
547
};
548
549
enum AVColorSpace{
550
    AVCOL_SPC_RGB        =0,
551
    AVCOL_SPC_BT709      =1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
552
    AVCOL_SPC_UNSPECIFIED=2,
553
    AVCOL_SPC_FCC        =4,
554
    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
555
    AVCOL_SPC_SMPTE170M  =6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
556
    AVCOL_SPC_SMPTE240M  =7,
557
    AVCOL_SPC_NB           , ///< Not part of ABI
558
};
559
560
enum AVColorRange{
561
    AVCOL_RANGE_UNSPECIFIED=0,
562
    AVCOL_RANGE_MPEG       =1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
563
    AVCOL_RANGE_JPEG       =2, ///< the normal     2^n-1   "JPEG" YUV ranges
564
    AVCOL_RANGE_NB           , ///< Not part of ABI
565
};
566
567 580a7465 David Conrad
/**
568
 *  X   X      3 4 X      X are luma samples,
569
 *             1 2        1-6 are possible chroma positions
570
 *  X   X      5 6 X      0 is undefined/unknown position
571
 */
572
enum AVChromaLocation{
573
    AVCHROMA_LOC_UNSPECIFIED=0,
574
    AVCHROMA_LOC_LEFT       =1, ///< mpeg2/4, h264 default
575
    AVCHROMA_LOC_CENTER     =2, ///< mpeg1, jpeg, h263
576
    AVCHROMA_LOC_TOPLEFT    =3, ///< DV
577
    AVCHROMA_LOC_TOP        =4,
578
    AVCHROMA_LOC_BOTTOMLEFT =5,
579
    AVCHROMA_LOC_BOTTOM     =6,
580
    AVCHROMA_LOC_NB           , ///< Not part of ABI
581
};
582
583 23940f14 Justin Ruggles
/**
584
 * LPC analysis type
585
 */
586
enum AVLPCType {
587
    AV_LPC_TYPE_DEFAULT     = -1, ///< use the codec default LPC type
588
    AV_LPC_TYPE_NONE        =  0, ///< do not use LPC prediction or use all zero coefficients
589
    AV_LPC_TYPE_FIXED       =  1, ///< fixed LPC coefficients
590
    AV_LPC_TYPE_LEVINSON    =  2, ///< Levinson-Durbin recursion
591
    AV_LPC_TYPE_CHOLESKY    =  3, ///< Cholesky factorization
592
    AV_LPC_TYPE_NB              , ///< Not part of ABI
593
};
594
595 ce980a95 Michael Niedermayer
typedef struct RcOverride{
596
    int start_frame;
597
    int end_frame;
598 f5bccd85 Diego Biurrun
    int qscale; // If this is 0 then quality_factor will be used instead.
599 ce980a95 Michael Niedermayer
    float quality_factor;
600
} RcOverride;
601
602 b0ec9efd Erik Slagter
#define FF_MAX_B_FRAMES 16
603 9dbcbd92 Michael Niedermayer
604 a949d72e Michael Niedermayer
/* encoding support
605 f5bccd85 Diego Biurrun
   These flags can be passed in AVCodecContext.flags before initialization.
606
   Note: Not everything is supported yet.
607 a949d72e Michael Niedermayer
*/
608 de6d9b64 Fabrice Bellard
609 f5bccd85 Diego Biurrun
#define CODEC_FLAG_QSCALE 0x0002  ///< Use fixed qscale.
610
#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / advanced prediction for H.263.
611
#define CODEC_FLAG_QPEL   0x0010  ///< Use qpel MC.
612
#define CODEC_FLAG_GMC    0x0020  ///< Use GMC.
613
#define CODEC_FLAG_MV0    0x0040  ///< Always try a MB with MV=<0,0>.
614
#define CODEC_FLAG_PART   0x0080  ///< Use data partitioning.
615 1ba8f5eb Michael Niedermayer
/**
616
 * The parent program guarantees that the input for B-frames containing
617 f5bccd85 Diego Biurrun
 * streams is not written to for at least s->max_b_frames+1 frames, if
618 1ba8f5eb Michael Niedermayer
 * this is not set the input will be copied.
619
 */
620 8b4c7dbc Michael Niedermayer
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
621 273b0cd3 Diego Biurrun
#define CODEC_FLAG_PASS1           0x0200   ///< Use internal 2pass ratecontrol in first pass mode.
622
#define CODEC_FLAG_PASS2           0x0400   ///< Use internal 2pass ratecontrol in second pass mode.
623
#define CODEC_FLAG_EXTERN_HUFF     0x1000   ///< Use external Huffman table (for MJPEG).
624
#define CODEC_FLAG_GRAY            0x2000   ///< Only decode/encode grayscale.
625
#define CODEC_FLAG_EMU_EDGE        0x4000   ///< Don't draw edges.
626
#define CODEC_FLAG_PSNR            0x8000   ///< error[?] variables will be set during encoding.
627
#define CODEC_FLAG_TRUNCATED       0x00010000 /** Input bitstream might be truncated at a random
628
                                                  location instead of only at frame boundaries. */
629 f5bccd85 Diego Biurrun
#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< Normalize adaptive quantization.
630
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
631
#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< Force low delay.
632
#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< Use alternate scan.
633
#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< Place global headers in extradata instead of every keyframe.
634
#define CODEC_FLAG_BITEXACT       0x00800000 ///< Use only bitexact stuff (except (I)DCT).
635 21e59552 Michael Niedermayer
/* Fx : Flag for h263+ extra options */
636 f5bccd85 Diego Biurrun
#define CODEC_FLAG_AC_PRED        0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction
637
#define CODEC_FLAG_H263P_UMV      0x02000000 ///< unlimited motion vector
638
#define CODEC_FLAG_CBP_RD         0x04000000 ///< Use rate distortion optimization for cbp.
639
#define CODEC_FLAG_QP_RD          0x08000000 ///< Use rate distortion optimization for qp selectioon.
640
#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H.263 alternative inter VLC
641 332f9ac4 Michael Niedermayer
#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
642
#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
643 bb198e19 Michael Niedermayer
#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
644
#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
645 f5bccd85 Diego Biurrun
#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< Will reserve space for SVCD scan offset user data.
646 f3eec1cf Michael Niedermayer
#define CODEC_FLAG_CLOSED_GOP     0x80000000
647 f5bccd85 Diego Biurrun
#define CODEC_FLAG2_FAST          0x00000001 ///< Allow non spec compliant speedup tricks.
648
#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< Strictly enforce GOP size.
649
#define CODEC_FLAG2_NO_OUTPUT     0x00000004 ///< Skip bitstream encoding.
650
#define CODEC_FLAG2_LOCAL_HEADER  0x00000008 ///< Place global headers at every keyframe instead of in extradata.
651
#define CODEC_FLAG2_BPYRAMID      0x00000010 ///< H.264 allow B-frames to be used as references.
652
#define CODEC_FLAG2_WPRED         0x00000020 ///< H.264 weighted biprediction for B-frames
653 d3075ed5 Panagiotis Issaris
#define CODEC_FLAG2_MIXED_REFS    0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock
654 58f7833e Robert Swain
#define CODEC_FLAG2_8X8DCT        0x00000080 ///< H.264 high profile 8x8 transform
655
#define CODEC_FLAG2_FASTPSKIP     0x00000100 ///< H.264 fast pskip
656
#define CODEC_FLAG2_AUD           0x00000200 ///< H.264 access unit delimiters
657 f5bccd85 Diego Biurrun
#define CODEC_FLAG2_BRDO          0x00000400 ///< B-frame rate-distortion optimization
658
#define CODEC_FLAG2_INTRA_VLC     0x00000800 ///< Use MPEG-2 intra VLC table.
659
#define CODEC_FLAG2_MEMC_ONLY     0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC).
660
#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format.
661
#define CODEC_FLAG2_SKIP_RD       0x00004000 ///< RD optimal MB level residual skipping
662
#define CODEC_FLAG2_CHUNKS        0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
663
#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer.
664 f1618fd9 Paul Kelly
#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible
665 25a42948 Erik Slagter
#define CODEC_FLAG2_MBTREE        0x00040000 ///< Use macroblock tree ratecontrol (x264 only)
666 f3b3b489 Baptiste Coudurier
#define CODEC_FLAG2_PSY           0x00080000 ///< Use psycho visual optimizations.
667
#define CODEC_FLAG2_SSIM          0x00100000 ///< Compute SSIM during encoding, error[] values are undefined.
668 e8c7fca9 Jason Garrett-Glaser
#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 ///< Use periodic insertion of intra blocks instead of keyframes.
669 6fc5b059 Michael Niedermayer
670 21e59552 Michael Niedermayer
/* Unsupported options :
671 bb270c08 Diego Biurrun
 *              Syntax Arithmetic coding (SAC)
672
 *              Reference Picture Selection
673 eafcac6a Diego Biurrun
 *              Independent Segment Decoding */
674 21e59552 Michael Niedermayer
/* /Fx */
675 bf89e6b1 Fabrice Bellard
/* codec capabilities */
676
677 f5bccd85 Diego Biurrun
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback.
678 6814a25c Michael Niedermayer
/**
679 9b489e02 Reimar Döffinger
 * Codec uses get_buffer() for allocating buffers and supports custom allocators.
680
 * If not set, it might not use get_buffer() at all or use operations that
681
 * assume the buffer was allocated by avcodec_default_get_buffer.
682 6814a25c Michael Niedermayer
 */
683
#define CODEC_CAP_DR1             0x0002
684 f5bccd85 Diego Biurrun
/* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */
685 917e06c8 Fabrice Bellard
#define CODEC_CAP_PARSE_ONLY      0x0004
686 d7425f59 Michael Niedermayer
#define CODEC_CAP_TRUNCATED       0x0008
687 f5bccd85 Diego Biurrun
/* Codec can export data for HW decoding (XvMC). */
688 5e5c247a Ivan Kalvachev
#define CODEC_CAP_HWACCEL         0x0010
689 115329f1 Diego Biurrun
/**
690 f5bccd85 Diego Biurrun
 * Codec has a nonzero delay and needs to be fed with NULL at the end to get the delayed data.
691
 * If this is not set, the codec is guaranteed to never be fed with NULL data.
692 934982c4 Michael Niedermayer
 */
693 6f824977 Michael Niedermayer
#define CODEC_CAP_DELAY           0x0020
694 cef7cc72 Justin Ruggles
/**
695
 * Codec can be fed a final frame with a smaller size.
696
 * This can be used to prevent truncation of the last audio samples.
697
 */
698
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
699 369122dd NVIDIA Corporation
/**
700
 * Codec can export data for HW decoding (VDPAU).
701
 */
702
#define CODEC_CAP_HWACCEL_VDPAU    0x0080
703 d859bb1d Sascha Sommer
/**
704
 * Codec can output multiple frames per AVPacket
705 e9e949cf Michael Niedermayer
 * Normally demuxers return one frame at a time, demuxers which do not do
706
 * are connected to a parser to split what they return into proper frames.
707
 * This flag is reserved to the very rare category of codecs which have a
708
 * bitstream that cannot be split into frames without timeconsuming
709
 * operations like full decoding. Demuxers carring such bitstreams thus
710
 * may return multiple frames in a packet. This has many disadvantages like
711
 * prohibiting stream copy in many cases thus it should only be considered
712
 * as a last resort.
713 d859bb1d Sascha Sommer
 */
714
#define CODEC_CAP_SUBFRAMES        0x0100
715 93ebfeea Janne Grunau
/**
716
 * Codec is experimental and is thus avoided in favor of non experimental
717
 * encoders
718
 */
719
#define CODEC_CAP_EXPERIMENTAL     0x0200
720 62784e37 Benjamin Larsson
/**
721
 * Codec should fill in channel configuration and samplerate instead of container
722
 */
723
#define CODEC_CAP_CHANNEL_CONF     0x0400
724 16cfc961 Stefano Sabatini
/**
725
 * Codec is able to deal with negative linesizes
726
 */
727
#define CODEC_CAP_NEG_LINESIZES    0x0800
728 bf89e6b1 Fabrice Bellard
729 f5bccd85 Diego Biurrun
//The following defines may change, don't expect compatibility if you use them.
730 8d7ec294 Wolfgang Hesseler
#define MB_TYPE_INTRA4x4   0x0001
731 f5bccd85 Diego Biurrun
#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
732
#define MB_TYPE_INTRA_PCM  0x0004 //FIXME H.264-specific
733 8d7ec294 Wolfgang Hesseler
#define MB_TYPE_16x16      0x0008
734
#define MB_TYPE_16x8       0x0010
735
#define MB_TYPE_8x16       0x0020
736
#define MB_TYPE_8x8        0x0040
737
#define MB_TYPE_INTERLACED 0x0080
738 273b0cd3 Diego Biurrun
#define MB_TYPE_DIRECT2    0x0100 //FIXME
739 8d7ec294 Wolfgang Hesseler
#define MB_TYPE_ACPRED     0x0200
740
#define MB_TYPE_GMC        0x0400
741
#define MB_TYPE_SKIP       0x0800
742
#define MB_TYPE_P0L0       0x1000
743
#define MB_TYPE_P1L0       0x2000
744
#define MB_TYPE_P0L1       0x4000
745
#define MB_TYPE_P1L1       0x8000
746
#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
747
#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
748
#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
749
#define MB_TYPE_QUANT      0x00010000
750
#define MB_TYPE_CBP        0x00020000
751
//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
752
753 fa384dcc Michael Niedermayer
/**
754
 * Pan Scan area.
755 f5bccd85 Diego Biurrun
 * This specifies the area which should be displayed.
756
 * Note there may be multiple such areas for one frame.
757 fa384dcc Michael Niedermayer
 */
758
typedef struct AVPanScan{
759
    /**
760 f5bccd85 Diego Biurrun
     * id
761
     * - encoding: Set by user.
762
     * - decoding: Set by libavcodec.
763 fa384dcc Michael Niedermayer
     */
764
    int id;
765
766
    /**
767
     * width and height in 1/16 pel
768 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
769
     * - decoding: Set by libavcodec.
770 fa384dcc Michael Niedermayer
     */
771
    int width;
772
    int height;
773
774
    /**
775 f5bccd85 Diego Biurrun
     * position of the top left corner in 1/16 pel for up to 3 fields/frames
776
     * - encoding: Set by user.
777
     * - decoding: Set by libavcodec.
778 fa384dcc Michael Niedermayer
     */
779
    int16_t position[3][2];
780
}AVPanScan;
781
782 492cd3a9 Michael Niedermayer
#define FF_COMMON_FRAME \
783 b536d0aa Michael Niedermayer
    /**\
784
     * pointer to the picture planes.\
785 f5bccd85 Diego Biurrun
     * This might be different from the first allocated byte\
786 b536d0aa Michael Niedermayer
     * - encoding: \
787
     * - decoding: \
788
     */\
789 1e491e29 Michael Niedermayer
    uint8_t *data[4];\
790
    int linesize[4];\
791
    /**\
792 f5bccd85 Diego Biurrun
     * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.\
793
     * This isn't used by libavcodec unless the default get/release_buffer() is used.\
794 64863965 Michael Niedermayer
     * - encoding: \
795
     * - decoding: \
796 1e491e29 Michael Niedermayer
     */\
797
    uint8_t *base[4];\
798
    /**\
799
     * 1 -> keyframe, 0-> not\
800 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.\
801
     * - decoding: Set by libavcodec.\
802 1e491e29 Michael Niedermayer
     */\
803
    int key_frame;\
804
\
805
    /**\
806 f5bccd85 Diego Biurrun
     * Picture type of the frame, see ?_TYPE below.\
807
     * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
808
     * - decoding: Set by libavcodec.\
809 1e491e29 Michael Niedermayer
     */\
810
    int pict_type;\
811
\
812
    /**\
813 c0df9d75 Michael Niedermayer
     * presentation timestamp in time_base units (time when frame should be shown to user)\
814 f5bccd85 Diego Biurrun
     * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.\
815
     * - encoding: MUST be set by user.\
816
     * - decoding: Set by libavcodec.\
817 1e491e29 Michael Niedermayer
     */\
818 be6784dc Richard Hodges
    int64_t pts;\
819 1e491e29 Michael Niedermayer
\
820
    /**\
821 f5bccd85 Diego Biurrun
     * picture number in bitstream order\
822 64863965 Michael Niedermayer
     * - encoding: set by\
823 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
824 1e491e29 Michael Niedermayer
     */\
825
    int coded_picture_number;\
826
    /**\
827 f5bccd85 Diego Biurrun
     * picture number in display order\
828 64863965 Michael Niedermayer
     * - encoding: set by\
829 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
830 1e491e29 Michael Niedermayer
     */\
831
    int display_picture_number;\
832
\
833
    /**\
834 158c7f05 Michael Niedermayer
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
835 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec. for coded_picture (and set by user for input).\
836
     * - decoding: Set by libavcodec.\
837 1e491e29 Michael Niedermayer
     */\
838 158c7f05 Michael Niedermayer
    int quality; \
839 1e491e29 Michael Niedermayer
\
840
    /**\
841
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
842 f5bccd85 Diego Biurrun
     * Set to INT_MAX if the buffer has not been used yet.\
843 64863965 Michael Niedermayer
     * - encoding: unused\
844 f5bccd85 Diego Biurrun
     * - decoding: MUST be set by get_buffer().\
845 1e491e29 Michael Niedermayer
     */\
846
    int age;\
847
\
848
    /**\
849
     * is this picture used as reference\
850 8474f58e Michael Niedermayer
     * The values for this are the same as the MpegEncContext.picture_structure\
851
     * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.\
852 5fe2a515 Carl Eugen Hoyos
     * Set to 4 for delayed, non-reference frames.\
853 64863965 Michael Niedermayer
     * - encoding: unused\
854 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec. (before get_buffer() call)).\
855 1e491e29 Michael Niedermayer
     */\
856
    int reference;\
857
\
858
    /**\
859
     * QP table\
860 64863965 Michael Niedermayer
     * - encoding: unused\
861 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
862 1e491e29 Michael Niedermayer
     */\
863
    int8_t *qscale_table;\
864
    /**\
865
     * QP store stride\
866 64863965 Michael Niedermayer
     * - encoding: unused\
867 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
868 1e491e29 Michael Niedermayer
     */\
869
    int qstride;\
870
\
871
    /**\
872 f5bccd85 Diego Biurrun
     * mbskip_table[mb]>=1 if MB didn't change\
873 1e491e29 Michael Niedermayer
     * stride= mb_width = (width+15)>>4\
874 64863965 Michael Niedermayer
     * - encoding: unused\
875 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
876 1e491e29 Michael Niedermayer
     */\
877
    uint8_t *mbskip_table;\
878
\
879
    /**\
880 f5bccd85 Diego Biurrun
     * motion vector table\
881 61436073 Michael Niedermayer
     * @code\
882
     * example:\
883
     * int mv_sample_log2= 4 - motion_subsample_log2;\
884
     * int mb_width= (width+15)>>4;\
885
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
886
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
887
     * @endcode\
888 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
889
     * - decoding: Set by libavcodec.\
890 8d7ec294 Wolfgang Hesseler
     */\
891
    int16_t (*motion_val[2])[2];\
892
\
893
    /**\
894 f5bccd85 Diego Biurrun
     * macroblock type table\
895 8d7ec294 Wolfgang Hesseler
     * mb_type_base + mb_width + 2\
896 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
897
     * - decoding: Set by libavcodec.\
898 8d7ec294 Wolfgang Hesseler
     */\
899
    uint32_t *mb_type;\
900
\
901
    /**\
902 f0b77c69 Michael Niedermayer
     * log2 of the size of the block which a single vector in motion_val represents: \
903
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
904 8d7ec294 Wolfgang Hesseler
     * - encoding: unused\
905 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
906 8d7ec294 Wolfgang Hesseler
     */\
907
    uint8_t motion_subsample_log2;\
908
\
909
    /**\
910 1e491e29 Michael Niedermayer
     * for some private data of the user\
911 64863965 Michael Niedermayer
     * - encoding: unused\
912 f5bccd85 Diego Biurrun
     * - decoding: Set by user.\
913 1e491e29 Michael Niedermayer
     */\
914
    void *opaque;\
915 140cb663 Michael Niedermayer
\
916
    /**\
917
     * error\
918 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.\
919 64863965 Michael Niedermayer
     * - decoding: unused\
920 140cb663 Michael Niedermayer
     */\
921
    uint64_t error[4];\
922 4e00e76b Michael Niedermayer
\
923
    /**\
924 f5bccd85 Diego Biurrun
     * type of the buffer (to keep track of who has to deallocate data[*])\
925
     * - encoding: Set by the one who allocates it.\
926
     * - decoding: Set by the one who allocates it.\
927
     * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.\
928 4e00e76b Michael Niedermayer
     */\
929
    int type;\
930 2ec23b6d Michael Niedermayer
    \
931
    /**\
932 f5bccd85 Diego Biurrun
     * When decoding, this signals how much the picture must be delayed.\
933 2ec23b6d Michael Niedermayer
     * extra_delay = repeat_pict / (2*fps)\
934 64863965 Michael Niedermayer
     * - encoding: unused\
935 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
936 2ec23b6d Michael Niedermayer
     */\
937 0426af31 Michael Niedermayer
    int repeat_pict;\
938
    \
939
    /**\
940
     * \
941
     */\
942
    int qscale_type;\
943 2744ca9a Roman Shaposhnik
    \
944
    /**\
945
     * The content of the picture is interlaced.\
946 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
947
     * - decoding: Set by libavcodec. (default 0)\
948 2744ca9a Roman Shaposhnik
     */\
949
    int interlaced_frame;\
950
    \
951
    /**\
952 f5bccd85 Diego Biurrun
     * If the content is interlaced, is top field displayed first.\
953
     * - encoding: Set by user.\
954
     * - decoding: Set by libavcodec.\
955 2744ca9a Roman Shaposhnik
     */\
956 9dad924e Michael Niedermayer
    int top_field_first;\
957 fa384dcc Michael Niedermayer
    \
958
    /**\
959
     * Pan scan.\
960 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
961
     * - decoding: Set by libavcodec.\
962 fa384dcc Michael Niedermayer
     */\
963
    AVPanScan *pan_scan;\
964 2a2bbcb0 Mike Melanson
    \
965
    /**\
966 f5bccd85 Diego Biurrun
     * Tell user application that palette has changed from previous frame.\
967 2a2bbcb0 Mike Melanson
     * - encoding: ??? (no palette-enabled encoder yet)\
968 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec. (default 0).\
969 2a2bbcb0 Mike Melanson
     */\
970
    int palette_has_changed;\
971 074c4ca7 Roberto Togni
    \
972
    /**\
973 f5bccd85 Diego Biurrun
     * codec suggestion on buffer type if != 0\
974 074c4ca7 Roberto Togni
     * - encoding: unused\
975 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec. (before get_buffer() call)).\
976 074c4ca7 Roberto Togni
     */\
977
    int buffer_hints;\
978 8289c6fa Wolfgang Hesseler
\
979
    /**\
980 f5bccd85 Diego Biurrun
     * DCT coefficients\
981 8289c6fa Wolfgang Hesseler
     * - encoding: unused\
982 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.\
983 8289c6fa Wolfgang Hesseler
     */\
984
    short *dct_coeff;\
985 a4d36c11 Michael Niedermayer
\
986
    /**\
987 58184187 Benoit Fouet
     * motion reference frame index\
988
     * the order in which these are stored can depend on the codec.\
989 f5bccd85 Diego Biurrun
     * - encoding: Set by user.\
990
     * - decoding: Set by libavcodec.\
991 a4d36c11 Michael Niedermayer
     */\
992 79de84f2 Michael Niedermayer
    int8_t *ref_index[2];\
993
\
994
    /**\
995 421167b0 Stefano Sabatini
     * reordered opaque 64bit (generally an integer or a double precision float\
996 e75229fa Michael Niedermayer
     * PTS but can be anything). \
997
     * The user sets AVCodecContext.reordered_opaque to represent the input at\
998 421167b0 Stefano Sabatini
     * that time,\
999
     * the decoder reorders values as needed and sets AVFrame.reordered_opaque\
1000 e75229fa Michael Niedermayer
     * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque \
1001 79de84f2 Michael Niedermayer
     * - encoding: unused\
1002
     * - decoding: Read by user.\
1003
     */\
1004
    int64_t reordered_opaque;\
1005 68e5d523 Gwenole Beauchesne
\
1006
    /**\
1007
     * hardware accelerator private data (FFmpeg allocated)\
1008
     * - encoding: unused\
1009
     * - decoding: Set by libavcodec\
1010
     */\
1011 952e2083 Gwenole Beauchesne
    void *hwaccel_picture_private;\
1012 393cbb96 Michael Niedermayer
\
1013
    /**\
1014
     * reordered pts from the last AVPacket that has been input into the decoder\
1015
     * - encoding: unused\
1016
     * - decoding: Read by user.\
1017
     */\
1018
    int64_t pkt_pts;\
1019 79de84f2 Michael Niedermayer
1020 2ec23b6d Michael Niedermayer
1021 bb270c08 Diego Biurrun
#define FF_QSCALE_TYPE_MPEG1 0
1022
#define FF_QSCALE_TYPE_MPEG2 1
1023
#define FF_QSCALE_TYPE_H264  2
1024 800274f8 Reimar Döffinger
#define FF_QSCALE_TYPE_VP56  3
1025 4e00e76b Michael Niedermayer
1026
#define FF_BUFFER_TYPE_INTERNAL 1
1027 f5bccd85 Diego Biurrun
#define FF_BUFFER_TYPE_USER     2 ///< direct rendering buffers (image is (de)allocated by user)
1028
#define FF_BUFFER_TYPE_SHARED   4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
1029
#define FF_BUFFER_TYPE_COPY     8 ///< Just a (modified) copy of some other buffer, don't deallocate anything.
1030 4e00e76b Michael Niedermayer
1031 1e491e29 Michael Niedermayer
1032 dc85e859 Aurelien Jacobs
#define FF_I_TYPE  1 ///< Intra
1033
#define FF_P_TYPE  2 ///< Predicted
1034
#define FF_B_TYPE  3 ///< Bi-dir predicted
1035
#define FF_S_TYPE  4 ///< S(GMC)-VOP MPEG4
1036
#define FF_SI_TYPE 5 ///< Switching Intra
1037
#define FF_SP_TYPE 6 ///< Switching Predicted
1038 48d533e6 Aurelien Jacobs
#define FF_BI_TYPE 7
1039 1e491e29 Michael Niedermayer
1040 f5bccd85 Diego Biurrun
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore).
1041
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
1042
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
1043
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
1044 074c4ca7 Roberto Togni
1045 18c915ee Thilo Borgmann
typedef struct AVPacket {
1046
    /**
1047 7b356d39 Robert Swain
     * Presentation timestamp in AVStream->time_base units; the time at which
1048
     * the decompressed packet will be presented to the user.
1049 18c915ee Thilo Borgmann
     * Can be AV_NOPTS_VALUE if it is not stored in the file.
1050
     * pts MUST be larger or equal to dts as presentation cannot happen before
1051
     * decompression, unless one wants to view hex dumps. Some formats misuse
1052
     * the terms dts and pts/cts to mean something different. Such timestamps
1053
     * must be converted to true pts/dts before they are stored in AVPacket.
1054
     */
1055
    int64_t pts;
1056
    /**
1057 7b356d39 Robert Swain
     * Decompression timestamp in AVStream->time_base units; the time at which
1058
     * the packet is decompressed.
1059 18c915ee Thilo Borgmann
     * Can be AV_NOPTS_VALUE if it is not stored in the file.
1060
     */
1061
    int64_t dts;
1062
    uint8_t *data;
1063
    int   size;
1064
    int   stream_index;
1065
    int   flags;
1066
    /**
1067 7b356d39 Robert Swain
     * Duration of this packet in AVStream->time_base units, 0 if unknown.
1068 18c915ee Thilo Borgmann
     * Equals next_pts - this_pts in presentation order.
1069
     */
1070
    int   duration;
1071
    void  (*destruct)(struct AVPacket *);
1072
    void  *priv;
1073
    int64_t pos;                            ///< byte position in stream, -1 if unknown
1074
1075
    /**
1076 7b356d39 Robert Swain
     * Time difference in AVStream->time_base units from the pts of this
1077 18c915ee Thilo Borgmann
     * packet to the point at which the output from the decoder has converged
1078
     * independent from the availability of previous frames. That is, the
1079
     * frames are virtually identical no matter if decoding started from
1080
     * the very first frame or from this keyframe.
1081
     * Is AV_NOPTS_VALUE if unknown.
1082
     * This field is not the display duration of the current packet.
1083 8ee82f40 Aurelien Jacobs
     * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
1084
     * set.
1085 18c915ee Thilo Borgmann
     *
1086
     * The purpose of this field is to allow seeking in streams that have no
1087
     * keyframes in the conventional sense. It corresponds to the
1088
     * recovery point SEI in H.264 and match_time_delta in NUT. It is also
1089
     * essential for some types of subtitle streams to ensure that all
1090
     * subtitles are correctly displayed after seeking.
1091
     */
1092
    int64_t convergence_duration;
1093
} AVPacket;
1094 8f3f2e06 Reimar Döffinger
#define AV_PKT_FLAG_KEY   0x0001
1095
#if LIBAVCODEC_VERSION_MAJOR < 53
1096
#define PKT_FLAG_KEY AV_PKT_FLAG_KEY
1097
#endif
1098 18c915ee Thilo Borgmann
1099 0da71265 Michael Niedermayer
/**
1100
 * Audio Video Frame.
1101 ba66ae94 Michael Niedermayer
 * New fields can be added to the end of FF_COMMON_FRAME with minor version
1102
 * bumps.
1103 8bfb108b Diego Biurrun
 * Removal, reordering and changes to existing fields require a major
1104 ba66ae94 Michael Niedermayer
 * version bump. No fields should be added into AVFrame before or after
1105
 * FF_COMMON_FRAME!
1106 8bfb108b Diego Biurrun
 * sizeof(AVFrame) must not be used outside libav*.
1107 0da71265 Michael Niedermayer
 */
1108 492cd3a9 Michael Niedermayer
typedef struct AVFrame {
1109
    FF_COMMON_FRAME
1110
} AVFrame;
1111 1e491e29 Michael Niedermayer
1112 d33c949c Michael Niedermayer
/**
1113 252f17e2 Michael Niedermayer
 * main external API structure.
1114
 * New fields can be added to the end with minor version bumps.
1115 8bfb108b Diego Biurrun
 * Removal, reordering and changes to existing fields require a major
1116 252f17e2 Michael Niedermayer
 * version bump.
1117 8bfb108b Diego Biurrun
 * sizeof(AVCodecContext) must not be used outside libav*.
1118 d33c949c Michael Niedermayer
 */
1119 de6d9b64 Fabrice Bellard
typedef struct AVCodecContext {
1120 b71901e6 Michael Niedermayer
    /**
1121 f5bccd85 Diego Biurrun
     * information on struct for av_log
1122 bc874dae Michel Bardiaux
     * - set by avcodec_alloc_context
1123
     */
1124 d42a814e Panagiotis Issaris
    const AVClass *av_class;
1125 bc874dae Michel Bardiaux
    /**
1126 f5bccd85 Diego Biurrun
     * the average bitrate
1127
     * - encoding: Set by user; unused for constant quantizer encoding.
1128
     * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
1129 b71901e6 Michael Niedermayer
     */
1130 de6d9b64 Fabrice Bellard
    int bit_rate;
1131 b71901e6 Michael Niedermayer
1132
    /**
1133 64863965 Michael Niedermayer
     * number of bits the bitstream is allowed to diverge from the reference.
1134 b71901e6 Michael Niedermayer
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
1135 f5bccd85 Diego Biurrun
     * - encoding: Set by user; unused for constant quantizer encoding.
1136 64863965 Michael Niedermayer
     * - decoding: unused
1137 b71901e6 Michael Niedermayer
     */
1138 115329f1 Diego Biurrun
    int bit_rate_tolerance;
1139 b71901e6 Michael Niedermayer
1140
    /**
1141 64863965 Michael Niedermayer
     * CODEC_FLAG_*.
1142 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1143
     * - decoding: Set by user.
1144 b71901e6 Michael Niedermayer
     */
1145 de6d9b64 Fabrice Bellard
    int flags;
1146 b71901e6 Michael Niedermayer
1147
    /**
1148 f5bccd85 Diego Biurrun
     * Some codecs need additional format info. It is stored here.
1149
     * If any muxer uses this then ALL demuxers/parsers AND encoders for the
1150
     * specific codec MUST set it correctly otherwise stream copy breaks.
1151
     * In general use of this field by muxers is not recommanded.
1152
     * - encoding: Set by libavcodec.
1153
     * - decoding: Set by libavcodec. (FIXME: Is this OK?)
1154 b71901e6 Michael Niedermayer
     */
1155
    int sub_id;
1156
1157
    /**
1158 f5bccd85 Diego Biurrun
     * Motion estimation algorithm used for video coding.
1159 58f7833e Robert Swain
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
1160 89223ef6 Baptiste Coudurier
     * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific]
1161 64863965 Michael Niedermayer
     * - encoding: MUST be set by user.
1162
     * - decoding: unused
1163 b71901e6 Michael Niedermayer
     */
1164
    int me_method;
1165
1166
    /**
1167 f5bccd85 Diego Biurrun
     * some codecs need / can use extradata like Huffman tables.
1168
     * mjpeg: Huffman tables
1169 b71901e6 Michael Niedermayer
     * rv10: additional flags
1170 b704e742 Michael Niedermayer
     * mpeg4: global headers (they can be in the bitstream or here)
1171 f5bccd85 Diego Biurrun
     * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
1172
     * than extradata_size to avoid prolems if it is read with the bitstream reader.
1173
     * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
1174
     * - encoding: Set/allocated/freed by libavcodec.
1175
     * - decoding: Set/allocated/freed by user.
1176 b71901e6 Michael Niedermayer
     */
1177 58f2a4b0 Baptiste Coudurier
    uint8_t *extradata;
1178 e84c31dc Arpi
    int extradata_size;
1179 115329f1 Diego Biurrun
1180 b71901e6 Michael Niedermayer
    /**
1181 f5bccd85 Diego Biurrun
     * This is the fundamental unit of time (in seconds) in terms
1182
     * of which frame timestamps are represented. For fixed-fps content,
1183 5b28c8c3 Michael Niedermayer
     * timebase should be 1/framerate and timestamp increments should be
1184
     * identically 1.
1185 f5bccd85 Diego Biurrun
     * - encoding: MUST be set by user.
1186
     * - decoding: Set by libavcodec.
1187 b71901e6 Michael Niedermayer
     */
1188 c0df9d75 Michael Niedermayer
    AVRational time_base;
1189 115329f1 Diego Biurrun
1190 5b28c8c3 Michael Niedermayer
    /* video only */
1191 14bea432 Michael Niedermayer
    /**
1192 21adafec Michael Niedermayer
     * picture width / height.
1193 115329f1 Diego Biurrun
     * - encoding: MUST be set by user.
1194 f5bccd85 Diego Biurrun
     * - decoding: Set by libavcodec.
1195
     * Note: For compatibility it is possible to set this instead of
1196
     * coded_width/height before decoding.
1197 b71901e6 Michael Niedermayer
     */
1198 de6d9b64 Fabrice Bellard
    int width, height;
1199 115329f1 Diego Biurrun
1200 e769f053 Alex Beregszaszi
#define FF_ASPECT_EXTENDED 15
1201 b71901e6 Michael Niedermayer
1202
    /**
1203 f5bccd85 Diego Biurrun
     * the number of pictures in a group of pictures, or 0 for intra_only
1204
     * - encoding: Set by user.
1205 64863965 Michael Niedermayer
     * - decoding: unused
1206 b71901e6 Michael Niedermayer
     */
1207
    int gop_size;
1208
1209
    /**
1210 f5bccd85 Diego Biurrun
     * Pixel format, see PIX_FMT_xxx.
1211 c1bdc930 Tomas Härdin
     * May be set by the demuxer if known from headers.
1212
     * May be overriden by the decoder if it knows better.
1213 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1214 c1bdc930 Tomas Härdin
     * - decoding: Set by user if known, overridden by libavcodec if known
1215 b71901e6 Michael Niedermayer
     */
1216 e4eadb4b Michael Niedermayer
    enum PixelFormat pix_fmt;
1217 115329f1 Diego Biurrun
1218 bdfcbbed Max Krasnyansky
    /**
1219 f5bccd85 Diego Biurrun
     * Frame rate emulation. If not zero, the lower layer (i.e. format handler)
1220 bdfcbbed Max Krasnyansky
     * has to read frames at native frame rate.
1221 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1222
     * - decoding: unused
1223 bdfcbbed Max Krasnyansky
     */
1224
    int rate_emu;
1225 115329f1 Diego Biurrun
1226 b71901e6 Michael Niedermayer
    /**
1227 f5bccd85 Diego Biurrun
     * If non NULL, 'draw_horiz_band' is called by the libavcodec
1228
     * decoder to draw a horizontal band. It improves cache usage. Not
1229 b71901e6 Michael Niedermayer
     * all codecs can do that. You must check the codec capabilities
1230 f5bccd85 Diego Biurrun
     * beforehand.
1231 24b1583a Ivan Kalvachev
     * The function is also used by hardware acceleration APIs.
1232
     * It is called at least once during frame decoding to pass
1233
     * the data needed for hardware render.
1234
     * In that mode instead of pixel data, AVFrame points to
1235
     * a structure specific to the acceleration API. The application
1236
     * reads the structure and can change some fields to indicate progress
1237
     * or mark state.
1238 64863965 Michael Niedermayer
     * - encoding: unused
1239 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1240 3bb07d61 Michael Niedermayer
     * @param height the height of the slice
1241
     * @param y the y position of the slice
1242
     * @param type 1->top field, 2->bottom field, 3->frame
1243
     * @param offset offset into the AVFrame.data from which the slice should be read
1244 b71901e6 Michael Niedermayer
     */
1245 bf89e6b1 Fabrice Bellard
    void (*draw_horiz_band)(struct AVCodecContext *s,
1246 da64ecc3 Drew Hess
                            const AVFrame *src, int offset[4],
1247 3bb07d61 Michael Niedermayer
                            int y, int type, int height);
1248 bf89e6b1 Fabrice Bellard
1249 de6d9b64 Fabrice Bellard
    /* audio only */
1250 f5bccd85 Diego Biurrun
    int sample_rate; ///< samples per second
1251 5fcc4a23 Stefano Sabatini
    int channels;    ///< number of audio channels
1252 a3a5f4d6 Michael Niedermayer
1253
    /**
1254 f5bccd85 Diego Biurrun
     * audio sample format
1255
     * - encoding: Set by user.
1256
     * - decoding: Set by libavcodec.
1257 a3a5f4d6 Michael Niedermayer
     */
1258 5d6e4c16 Stefano Sabatini
    enum AVSampleFormat sample_fmt;  ///< sample format
1259 de6d9b64 Fabrice Bellard
1260 f5bccd85 Diego Biurrun
    /* The following data should not be initialized. */
1261 718b27a7 Michael Niedermayer
    /**
1262 f5bccd85 Diego Biurrun
     * Samples per packet, initialized when calling 'init'.
1263 718b27a7 Michael Niedermayer
     */
1264
    int frame_size;
1265 115329f1 Diego Biurrun
    int frame_number;   ///< audio or video frame number
1266 c0601d70 Baptiste Coudurier
#if LIBAVCODEC_VERSION_MAJOR < 53
1267 f5bccd85 Diego Biurrun
    int real_pict_num;  ///< Returns the real picture number of previous encoded frame.
1268 c0601d70 Baptiste Coudurier
#endif
1269 115329f1 Diego Biurrun
1270 b71901e6 Michael Niedermayer
    /**
1271 f5bccd85 Diego Biurrun
     * Number of frames the decoded output will be delayed relative to
1272 64863965 Michael Niedermayer
     * the encoded input.
1273 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.
1274 64863965 Michael Niedermayer
     * - decoding: unused
1275 b71901e6 Michael Niedermayer
     */
1276
    int delay;
1277 115329f1 Diego Biurrun
1278 64863965 Michael Niedermayer
    /* - encoding parameters */
1279
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
1280 115329f1 Diego Biurrun
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
1281
1282 b71901e6 Michael Niedermayer
    /**
1283 f5bccd85 Diego Biurrun
     * minimum quantizer
1284
     * - encoding: Set by user.
1285 64863965 Michael Niedermayer
     * - decoding: unused
1286 b71901e6 Michael Niedermayer
     */
1287
    int qmin;
1288
1289
    /**
1290 f5bccd85 Diego Biurrun
     * maximum quantizer
1291
     * - encoding: Set by user.
1292 64863965 Michael Niedermayer
     * - decoding: unused
1293 b71901e6 Michael Niedermayer
     */
1294
    int qmax;
1295
1296
    /**
1297 f5bccd85 Diego Biurrun
     * maximum quantizer difference between frames
1298
     * - encoding: Set by user.
1299 64863965 Michael Niedermayer
     * - decoding: unused
1300 b71901e6 Michael Niedermayer
     */
1301
    int max_qdiff;
1302
1303
    /**
1304 f5bccd85 Diego Biurrun
     * maximum number of B-frames between non-B-frames
1305
     * Note: The output will be delayed by max_b_frames+1 relative to the input.
1306
     * - encoding: Set by user.
1307 64863965 Michael Niedermayer
     * - decoding: unused
1308 b71901e6 Michael Niedermayer
     */
1309
    int max_b_frames;
1310
1311
    /**
1312 f5bccd85 Diego Biurrun
     * qscale factor between IP and B-frames
1313 662e5411 tripp
     * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
1314
     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
1315 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1316 64863965 Michael Niedermayer
     * - decoding: unused
1317 b71901e6 Michael Niedermayer
     */
1318
    float b_quant_factor;
1319 115329f1 Diego Biurrun
1320 b71901e6 Michael Niedermayer
    /** obsolete FIXME remove */
1321
    int rc_strategy;
1322 64b7c5b6 Michael Niedermayer
#define FF_RC_STRATEGY_XVID 1
1323
1324 8b4c7dbc Michael Niedermayer
    int b_frame_strategy;
1325 9dbcbd92 Michael Niedermayer
1326 b71901e6 Michael Niedermayer
    /**
1327 85947156 Vitor Sessak
     * hurry up amount
1328
     * - encoding: unused
1329
     * - decoding: Set by user. 1-> Skip B-frames, 2-> Skip IDCT/dequant too, 5-> Skip everything except header
1330 f9ec0aa1 Panagiotis Issaris
     * @deprecated Deprecated in favor of skip_idct and skip_frame.
1331 b71901e6 Michael Niedermayer
     */
1332
    int hurry_up;
1333 115329f1 Diego Biurrun
1334 de6d9b64 Fabrice Bellard
    struct AVCodec *codec;
1335 115329f1 Diego Biurrun
1336 de6d9b64 Fabrice Bellard
    void *priv_data;
1337
1338 bb628dae Diego Biurrun
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
1339 f5bccd85 Diego Biurrun
                            /* do its best to deliver a chunk with size     */
1340 644d98a4 Juanjo
                            /* below rtp_payload_size, the chunk will start */
1341 f5bccd85 Diego Biurrun
                            /* with a start code on some codecs like H.263. */
1342 644d98a4 Juanjo
                            /* This doesn't take account of any particular  */
1343 f5bccd85 Diego Biurrun
                            /* headers inside the transmitted RTP payload.  */
1344 81401c1f Juanjo
1345 115329f1 Diego Biurrun
1346 f5bccd85 Diego Biurrun
    /* The RTP callback: This function is called    */
1347
    /* every time the encoder has a packet to send. */
1348
    /* It depends on the encoder if the data starts */
1349
    /* with a Start Code (it should). H.263 does.   */
1350
    /* mb_nb contains the number of macroblocks     */
1351
    /* encoded in the RTP payload.                  */
1352 115329f1 Diego Biurrun
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
1353 81401c1f Juanjo
1354 098eefe1 Michael Niedermayer
    /* statistics, used for 2-pass encoding */
1355
    int mv_bits;
1356
    int header_bits;
1357
    int i_tex_bits;
1358
    int p_tex_bits;
1359
    int i_count;
1360
    int p_count;
1361
    int skip_count;
1362 b71901e6 Michael Niedermayer
    int misc_bits;
1363 115329f1 Diego Biurrun
1364 b71901e6 Michael Niedermayer
    /**
1365 f5bccd85 Diego Biurrun
     * number of bits used for the previously encoded frame
1366
     * - encoding: Set by libavcodec.
1367 7004ffb3 Michael Niedermayer
     * - decoding: unused
1368 b71901e6 Michael Niedermayer
     */
1369 098eefe1 Michael Niedermayer
    int frame_bits;
1370 7004ffb3 Michael Niedermayer
1371 b71901e6 Michael Niedermayer
    /**
1372 f5bccd85 Diego Biurrun
     * Private data of the user, can be used to carry app specific stuff.
1373
     * - encoding: Set by user.
1374
     * - decoding: Set by user.
1375 b71901e6 Michael Niedermayer
     */
1376
    void *opaque;
1377
1378 de6d9b64 Fabrice Bellard
    char codec_name[32];
1379 72415b2a Stefano Sabatini
    enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
1380 4a663d80 Philip Gladstone
    enum CodecID codec_id; /* see CODEC_ID_xxx */
1381 115329f1 Diego Biurrun
1382 7004ffb3 Michael Niedermayer
    /**
1383
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1384 f5bccd85 Diego Biurrun
     * This is used to work around some encoder bugs.
1385
     * A demuxer should set this to what is stored in the field used to identify the codec.
1386
     * If there are multiple such fields in a container then the demuxer should choose the one
1387
     * which maximizes the information about the used codec.
1388
     * If the codec tag field in a container is larger then 32 bits then the demuxer should
1389
     * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
1390 47bbf8a7 Michael Niedermayer
     * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
1391 f5bccd85 Diego Biurrun
     * first.
1392
     * - encoding: Set by user, if not then the default based on codec_id will be used.
1393
     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
1394 7004ffb3 Michael Niedermayer
     */
1395
    unsigned int codec_tag;
1396 115329f1 Diego Biurrun
1397 b71901e6 Michael Niedermayer
    /**
1398 f5bccd85 Diego Biurrun
     * Work around bugs in encoders which sometimes cannot be detected automatically.
1399
     * - encoding: Set by user
1400
     * - decoding: Set by user
1401 b71901e6 Michael Niedermayer
     */
1402
    int workaround_bugs;
1403 64863965 Michael Niedermayer
#define FF_BUG_AUTODETECT       1  ///< autodetection
1404 4d2858de Michael Niedermayer
#define FF_BUG_OLD_MSMPEG4      2
1405
#define FF_BUG_XVID_ILACE       4
1406
#define FF_BUG_UMP4             8
1407
#define FF_BUG_NO_PADDING       16
1408 3116cb14 Michael Niedermayer
#define FF_BUG_AMV              32
1409 f5bccd85 Diego Biurrun
#define FF_BUG_AC_VLC           0  ///< Will be removed, libavcodec can now handle these non-compliant files by default.
1410 03e93d35 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA      64
1411 db794953 Michael Niedermayer
#define FF_BUG_STD_QPEL         128
1412 36df8805 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA2     256
1413 c40c3482 Michael Niedermayer
#define FF_BUG_DIRECT_BLOCKSIZE 512
1414 1c6dcb0f Michael Niedermayer
#define FF_BUG_EDGE             1024
1415 b44bdf7e Michael Niedermayer
#define FF_BUG_HPEL_CHROMA      2048
1416 4ccde216 Michael Niedermayer
#define FF_BUG_DC_CLIP          4096
1417 f5bccd85 Diego Biurrun
#define FF_BUG_MS               8192 ///< Work around various bugs in Microsoft's broken decoders.
1418 3566042a Michael Niedermayer
#define FF_BUG_TRUNCATED       16384
1419 f5bccd85 Diego Biurrun
//#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%.
1420 115329f1 Diego Biurrun
1421 b71901e6 Michael Niedermayer
    /**
1422 f5bccd85 Diego Biurrun
     * luma single coefficient elimination threshold
1423
     * - encoding: Set by user.
1424 64863965 Michael Niedermayer
     * - decoding: unused
1425 b71901e6 Michael Niedermayer
     */
1426 1f6b6e50 Michael Niedermayer
    int luma_elim_threshold;
1427 115329f1 Diego Biurrun
1428 b71901e6 Michael Niedermayer
    /**
1429 f5bccd85 Diego Biurrun
     * chroma single coeff elimination threshold
1430
     * - encoding: Set by user.
1431 64863965 Michael Niedermayer
     * - decoding: unused
1432 b71901e6 Michael Niedermayer
     */
1433 1f6b6e50 Michael Niedermayer
    int chroma_elim_threshold;
1434 115329f1 Diego Biurrun
1435 b71901e6 Michael Niedermayer
    /**
1436 f5bccd85 Diego Biurrun
     * strictly follow the standard (MPEG4, ...).
1437
     * - encoding: Set by user.
1438 5771b2c3 Michael Niedermayer
     * - decoding: Set by user.
1439
     * Setting this to STRICT or higher means the encoder and decoder will
1440 2d525ef4 Rodney Baker
     * generally do stupid things, whereas setting it to unofficial or lower
1441 538c0e13 Rodney Baker
     * will mean the encoder might produce output that is not supported by all
1442
     * spec-compliant decoders. Decoders don't differentiate between normal,
1443 2d525ef4 Rodney Baker
     * unofficial and experimental (that is, they always try to decode things
1444 538c0e13 Rodney Baker
     * when they can) unless they are explicitly asked to behave stupidly
1445 5771b2c3 Michael Niedermayer
     * (=strictly conform to the specs)
1446 b71901e6 Michael Niedermayer
     */
1447
    int strict_std_compliance;
1448 538c0e13 Rodney Baker
#define FF_COMPLIANCE_VERY_STRICT   2 ///< Strictly conform to an older more strict version of the spec or reference software.
1449 f5bccd85 Diego Biurrun
#define FF_COMPLIANCE_STRICT        1 ///< Strictly conform to all the things in the spec no matter what consequences.
1450 9cd81798 Michael Niedermayer
#define FF_COMPLIANCE_NORMAL        0
1451 59b4e5ba Aurelien Jacobs
#if FF_API_INOFFICIAL
1452 2d525ef4 Rodney Baker
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< Allow inofficial extensions (deprecated - use FF_COMPLIANCE_UNOFFICIAL instead).
1453
#endif
1454
#define FF_COMPLIANCE_UNOFFICIAL   -1 ///< Allow unofficial extensions
1455 f5bccd85 Diego Biurrun
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
1456 9cd81798 Michael Niedermayer
1457 b71901e6 Michael Niedermayer
    /**
1458 f5bccd85 Diego Biurrun
     * qscale offset between IP and B-frames
1459
     * - encoding: Set by user.
1460 64863965 Michael Niedermayer
     * - decoding: unused
1461 b71901e6 Michael Niedermayer
     */
1462
    float b_quant_offset;
1463 115329f1 Diego Biurrun
1464 b71901e6 Michael Niedermayer
    /**
1465 047599a4 Michael Niedermayer
     * Error recognization; higher values will detect more errors but may
1466 f5bccd85 Diego Biurrun
     * misdetect some more or less valid parts as errors.
1467 64863965 Michael Niedermayer
     * - encoding: unused
1468 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1469 b71901e6 Michael Niedermayer
     */
1470 047599a4 Michael Niedermayer
    int error_recognition;
1471 1471c6c2 Diego Biurrun
#define FF_ER_CAREFUL         1
1472 ce3bcaed Michael Niedermayer
#define FF_ER_COMPLIANT       2
1473
#define FF_ER_AGGRESSIVE      3
1474
#define FF_ER_VERY_AGGRESSIVE 4
1475 115329f1 Diego Biurrun
1476 6b72ac63 Michael Niedermayer
    /**
1477 f5bccd85 Diego Biurrun
     * Called at the beginning of each frame to get a buffer for it.
1478
     * If pic.reference is set then the frame will be read later by libavcodec.
1479 eb285cfe Reimar Döffinger
     * avcodec_align_dimensions2() should be used to find the required width and
1480 f5bccd85 Diego Biurrun
     * height, as they normally need to be rounded up to the next multiple of 16.
1481 f1b99cc6 Michael Niedermayer
     * if CODEC_CAP_DR1 is not set then get_buffer() must call
1482
     * avcodec_default_get_buffer() instead of providing buffers allocated by
1483
     * some other means.
1484 64863965 Michael Niedermayer
     * - encoding: unused
1485 53128bc3 Peter Ross
     * - decoding: Set by libavcodec, user can override.
1486 b71901e6 Michael Niedermayer
     */
1487 492cd3a9 Michael Niedermayer
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1488 115329f1 Diego Biurrun
1489 b71901e6 Michael Niedermayer
    /**
1490 69b192ac Ramiro Polla
     * Called to release buffers which were allocated with get_buffer.
1491 f5bccd85 Diego Biurrun
     * A released buffer can be reused in get_buffer().
1492
     * pic.data[*] must be set to NULL.
1493 64863965 Michael Niedermayer
     * - encoding: unused
1494 53128bc3 Peter Ross
     * - decoding: Set by libavcodec, user can override.
1495 b71901e6 Michael Niedermayer
     */
1496 492cd3a9 Michael Niedermayer
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1497 0fd90455 Michael Niedermayer
1498 b71901e6 Michael Niedermayer
    /**
1499 eb8a25c8 Michael Niedermayer
     * Size of the frame reordering buffer in the decoder.
1500 2d7b0560 Diego Biurrun
     * For MPEG-2 it is 1 IPB or 0 low delay IP.
1501 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.
1502
     * - decoding: Set by libavcodec.
1503 b71901e6 Michael Niedermayer
     */
1504
    int has_b_frames;
1505 718b27a7 Michael Niedermayer
1506
    /**
1507
     * number of bytes per packet if constant and known or 0
1508 f5bccd85 Diego Biurrun
     * Used by some WAV based audio codecs.
1509 718b27a7 Michael Niedermayer
     */
1510
    int block_align;
1511 115329f1 Diego Biurrun
1512 f5bccd85 Diego Biurrun
    int parse_only; /* - decoding only: If true, only parsing is done
1513 917e06c8 Fabrice Bellard
                       (function avcodec_parse_frame()). The frame
1514
                       data is returned. Only MPEG codecs support this now. */
1515 115329f1 Diego Biurrun
1516 b71901e6 Michael Niedermayer
    /**
1517 f5bccd85 Diego Biurrun
     * 0-> h263 quant 1-> mpeg quant
1518
     * - encoding: Set by user.
1519 64863965 Michael Niedermayer
     * - decoding: unused
1520 b71901e6 Michael Niedermayer
     */
1521
    int mpeg_quant;
1522 115329f1 Diego Biurrun
1523 b71901e6 Michael Niedermayer
    /**
1524 f5bccd85 Diego Biurrun
     * pass1 encoding statistics output buffer
1525
     * - encoding: Set by libavcodec.
1526 64863965 Michael Niedermayer
     * - decoding: unused
1527 b71901e6 Michael Niedermayer
     */
1528 64863965 Michael Niedermayer
    char *stats_out;
1529 115329f1 Diego Biurrun
1530 b71901e6 Michael Niedermayer
    /**
1531 f5bccd85 Diego Biurrun
     * pass2 encoding statistics input buffer
1532
     * Concatenated stuff from stats_out of pass1 should be placed here.
1533
     * - encoding: Allocated/set/freed by user.
1534 64863965 Michael Niedermayer
     * - decoding: unused
1535 b71901e6 Michael Niedermayer
     */
1536
    char *stats_in;
1537 115329f1 Diego Biurrun
1538 b71901e6 Michael Niedermayer
    /**
1539 f5bccd85 Diego Biurrun
     * ratecontrol qmin qmax limiting method
1540
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax.
1541
     * - encoding: Set by user.
1542 64863965 Michael Niedermayer
     * - decoding: unused
1543 b71901e6 Michael Niedermayer
     */
1544 ce980a95 Michael Niedermayer
    float rc_qsquish;
1545 b71901e6 Michael Niedermayer
1546 ce980a95 Michael Niedermayer
    float rc_qmod_amp;
1547
    int rc_qmod_freq;
1548 115329f1 Diego Biurrun
1549 b71901e6 Michael Niedermayer
    /**
1550 f5bccd85 Diego Biurrun
     * ratecontrol override, see RcOverride
1551
     * - encoding: Allocated/set/freed by user.
1552 64863965 Michael Niedermayer
     * - decoding: unused
1553 b71901e6 Michael Niedermayer
     */
1554 ce980a95 Michael Niedermayer
    RcOverride *rc_override;
1555
    int rc_override_count;
1556 115329f1 Diego Biurrun
1557 b71901e6 Michael Niedermayer
    /**
1558 f5bccd85 Diego Biurrun
     * rate control equation
1559
     * - encoding: Set by user
1560 64863965 Michael Niedermayer
     * - decoding: unused
1561 b71901e6 Michael Niedermayer
     */
1562 6881b8e5 Luca Abeni
    const char *rc_eq;
1563 115329f1 Diego Biurrun
1564 b71901e6 Michael Niedermayer
    /**
1565 f5bccd85 Diego Biurrun
     * maximum bitrate
1566
     * - encoding: Set by user.
1567 64863965 Michael Niedermayer
     * - decoding: unused
1568 b71901e6 Michael Niedermayer
     */
1569 ce980a95 Michael Niedermayer
    int rc_max_rate;
1570 115329f1 Diego Biurrun
1571 b71901e6 Michael Niedermayer
    /**
1572 f5bccd85 Diego Biurrun
     * minimum bitrate
1573
     * - encoding: Set by user.
1574 64863965 Michael Niedermayer
     * - decoding: unused
1575 b71901e6 Michael Niedermayer
     */
1576 ce980a95 Michael Niedermayer
    int rc_min_rate;
1577 115329f1 Diego Biurrun
1578 b71901e6 Michael Niedermayer
    /**
1579 f5bccd85 Diego Biurrun
     * decoder bitstream buffer size
1580
     * - encoding: Set by user.
1581 64863965 Michael Niedermayer
     * - decoding: unused
1582 b71901e6 Michael Niedermayer
     */
1583 ce980a95 Michael Niedermayer
    int rc_buffer_size;
1584
    float rc_buffer_aggressivity;
1585 b71901e6 Michael Niedermayer
1586
    /**
1587 f5bccd85 Diego Biurrun
     * qscale factor between P and I-frames
1588
     * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
1589
     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
1590
     * - encoding: Set by user.
1591 64863965 Michael Niedermayer
     * - decoding: unused
1592 b71901e6 Michael Niedermayer
     */
1593
    float i_quant_factor;
1594 115329f1 Diego Biurrun
1595 b71901e6 Michael Niedermayer
    /**
1596 f5bccd85 Diego Biurrun
     * qscale offset between P and I-frames
1597
     * - encoding: Set by user.
1598 64863965 Michael Niedermayer
     * - decoding: unused
1599 b71901e6 Michael Niedermayer
     */
1600
    float i_quant_offset;
1601 115329f1 Diego Biurrun
1602 b71901e6 Michael Niedermayer
    /**
1603 f5bccd85 Diego Biurrun
     * initial complexity for pass1 ratecontrol
1604
     * - encoding: Set by user.
1605 64863965 Michael Niedermayer
     * - decoding: unused
1606 b71901e6 Michael Niedermayer
     */
1607 ce980a95 Michael Niedermayer
    float rc_initial_cplx;
1608 917e06c8 Fabrice Bellard
1609 b71901e6 Michael Niedermayer
    /**
1610 f5bccd85 Diego Biurrun
     * DCT algorithm, see FF_DCT_* below
1611
     * - encoding: Set by user.
1612 64863965 Michael Niedermayer
     * - decoding: unused
1613 b71901e6 Michael Niedermayer
     */
1614 28db7fce Michael Niedermayer
    int dct_algo;
1615 c7e07931 Martin Olschewski
#define FF_DCT_AUTO    0
1616 28db7fce Michael Niedermayer
#define FF_DCT_FASTINT 1
1617 c7e07931 Martin Olschewski
#define FF_DCT_INT     2
1618
#define FF_DCT_MMX     3
1619
#define FF_DCT_MLIB    4
1620 05c4072b Michael Niedermayer
#define FF_DCT_ALTIVEC 5
1621 65e4c8c9 Michael Niedermayer
#define FF_DCT_FAAN    6
1622 115329f1 Diego Biurrun
1623 c5d309f2 Michael Niedermayer
    /**
1624 f5bccd85 Diego Biurrun
     * luminance masking (0-> disabled)
1625
     * - encoding: Set by user.
1626 64863965 Michael Niedermayer
     * - decoding: unused
1627 c5d309f2 Michael Niedermayer
     */
1628
    float lumi_masking;
1629 115329f1 Diego Biurrun
1630 c5d309f2 Michael Niedermayer
    /**
1631 f5bccd85 Diego Biurrun
     * temporary complexity masking (0-> disabled)
1632
     * - encoding: Set by user.
1633 64863965 Michael Niedermayer
     * - decoding: unused
1634 c5d309f2 Michael Niedermayer
     */
1635
    float temporal_cplx_masking;
1636 115329f1 Diego Biurrun
1637 c5d309f2 Michael Niedermayer
    /**
1638 f5bccd85 Diego Biurrun
     * spatial complexity masking (0-> disabled)
1639
     * - encoding: Set by user.
1640 64863965 Michael Niedermayer
     * - decoding: unused
1641 c5d309f2 Michael Niedermayer
     */
1642
    float spatial_cplx_masking;
1643 115329f1 Diego Biurrun
1644 c5d309f2 Michael Niedermayer
    /**
1645 f5bccd85 Diego Biurrun
     * p block masking (0-> disabled)
1646
     * - encoding: Set by user.
1647 64863965 Michael Niedermayer
     * - decoding: unused
1648 c5d309f2 Michael Niedermayer
     */
1649
    float p_masking;
1650 15415af4 Michael Niedermayer
1651 5e746b99 Michael Niedermayer
    /**
1652 f5bccd85 Diego Biurrun
     * darkness masking (0-> disabled)
1653
     * - encoding: Set by user.
1654 64863965 Michael Niedermayer
     * - decoding: unused
1655 5e746b99 Michael Niedermayer
     */
1656
    float dark_masking;
1657 115329f1 Diego Biurrun
1658 0c2dd16e Michael Niedermayer
    /**
1659 f5bccd85 Diego Biurrun
     * IDCT algorithm, see FF_IDCT_* below.
1660
     * - encoding: Set by user.
1661
     * - decoding: Set by user.
1662 2ad1516a Michael Niedermayer
     */
1663
    int idct_algo;
1664 273b0cd3 Diego Biurrun
#define FF_IDCT_AUTO          0
1665
#define FF_IDCT_INT           1
1666
#define FF_IDCT_SIMPLE        2
1667
#define FF_IDCT_SIMPLEMMX     3
1668
#define FF_IDCT_LIBMPEG2MMX   4
1669
#define FF_IDCT_PS2           5
1670
#define FF_IDCT_MLIB          6
1671
#define FF_IDCT_ARM           7
1672
#define FF_IDCT_ALTIVEC       8
1673
#define FF_IDCT_SH4           9
1674
#define FF_IDCT_SIMPLEARM     10
1675
#define FF_IDCT_H264          11
1676
#define FF_IDCT_VP3           12
1677
#define FF_IDCT_IPP           13
1678
#define FF_IDCT_XVIDMMX       14
1679
#define FF_IDCT_CAVS          15
1680 a0403006 Måns Rullgård
#define FF_IDCT_SIMPLEARMV5TE 16
1681 273b0cd3 Diego Biurrun
#define FF_IDCT_SIMPLEARMV6   17
1682 d9420d4d Denes Balatoni
#define FF_IDCT_SIMPLEVIS     18
1683 9abc7e0f Michael Niedermayer
#define FF_IDCT_WMV2          19
1684 6f08c541 Michael Niedermayer
#define FF_IDCT_FAAN          20
1685 42b30357 Peter Ross
#define FF_IDCT_EA            21
1686 7eec4328 Måns Rullgård
#define FF_IDCT_SIMPLENEON    22
1687 74c47463 Måns Rullgård
#define FF_IDCT_SIMPLEALPHA   23
1688 342c7dfd Kostya Shishkov
#define FF_IDCT_BINK          24
1689 2ad1516a Michael Niedermayer
1690 144f0625 Michael Niedermayer
    /**
1691 f5bccd85 Diego Biurrun
     * slice count
1692
     * - encoding: Set by libavcodec.
1693
     * - decoding: Set by user (or 0).
1694 144f0625 Michael Niedermayer
     */
1695
    int slice_count;
1696
    /**
1697 f5bccd85 Diego Biurrun
     * slice offsets in the frame in bytes
1698
     * - encoding: Set/allocated by libavcodec.
1699
     * - decoding: Set/allocated by user (or NULL).
1700 144f0625 Michael Niedermayer
     */
1701
    int *slice_offset;
1702
1703 4d2858de Michael Niedermayer
    /**
1704 f5bccd85 Diego Biurrun
     * error concealment flags
1705 64863965 Michael Niedermayer
     * - encoding: unused
1706 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
1707 4d2858de Michael Niedermayer
     */
1708
    int error_concealment;
1709
#define FF_EC_GUESS_MVS   1
1710
#define FF_EC_DEBLOCK     2
1711
1712 6b72ac63 Michael Niedermayer
    /**
1713 bec89a84 Zdenek Kabelac
     * dsp_mask could be add used to disable unwanted CPU features
1714 8350df97 Zdenek Kabelac
     * CPU features (i.e. MMX, SSE. ...)
1715 bec89a84 Zdenek Kabelac
     *
1716 f5bccd85 Diego Biurrun
     * With the FORCE flag you may instead enable given CPU features.
1717
     * (Dangerous: Usable in case of misdetection, improper usage however will
1718
     * result into program crash.)
1719 bec89a84 Zdenek Kabelac
     */
1720
    unsigned dsp_mask;
1721 7160bb71 Stefano Sabatini
1722
#if FF_API_MM_FLAGS
1723
#define FF_MM_FORCE      AV_CPU_FLAG_FORCE
1724
#define FF_MM_MMX        AV_CPU_FLAG_MMX
1725
#define FF_MM_3DNOW      AV_CPU_FLAG_3DNOW
1726
#define FF_MM_MMXEXT     AV_CPU_FLAG_MMX2
1727
#define FF_MM_MMX2       AV_CPU_FLAG_MMX2
1728
#define FF_MM_SSE        AV_CPU_FLAG_SSE
1729
#define FF_MM_SSE2       AV_CPU_FLAG_SSE2
1730
#define FF_MM_SSE2SLOW   AV_CPU_FLAG_SSE2SLOW
1731
#define FF_MM_3DNOWEXT   AV_CPU_FLAG_3DNOWEXT
1732
#define FF_MM_SSE3       AV_CPU_FLAG_SSE3
1733
#define FF_MM_SSE3SLOW   AV_CPU_FLAG_SSE3SLOW
1734
#define FF_MM_SSSE3      AV_CPU_FLAG_SSSE3
1735
#define FF_MM_SSE4       AV_CPU_FLAG_SSE4
1736
#define FF_MM_SSE42      AV_CPU_FLAG_SSE42
1737
#define FF_MM_IWMMXT     AV_CPU_FLAG_IWMMXT
1738
#define FF_MM_ALTIVEC    AV_CPU_FLAG_ALTIVEC
1739 6b434361 Stefano Sabatini
#endif
1740 11f18faf Michael Niedermayer
1741
    /**
1742 64863965 Michael Niedermayer
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1743 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec.
1744
     * - decoding: Set by user.
1745 11f18faf Michael Niedermayer
     */
1746 46a73068 Peter Ross
     int bits_per_coded_sample;
1747 115329f1 Diego Biurrun
1748 11f18faf Michael Niedermayer
    /**
1749 f5bccd85 Diego Biurrun
     * prediction method (needed for huffyuv)
1750
     * - encoding: Set by user.
1751 64863965 Michael Niedermayer
     * - decoding: unused
1752 11f18faf Michael Niedermayer
     */
1753
     int prediction_method;
1754
#define FF_PRED_LEFT   0
1755
#define FF_PRED_PLANE  1
1756
#define FF_PRED_MEDIAN 2
1757 115329f1 Diego Biurrun
1758 5d3cea3a Michael Niedermayer
    /**
1759 f5bccd85 Diego Biurrun
     * sample aspect ratio (0 if unknown)
1760 8e5af7a6 Michael Niedermayer
     * That is the width of a pixel divided by the height of the pixel.
1761 f5bccd85 Diego Biurrun
     * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
1762
     * - encoding: Set by user.
1763
     * - decoding: Set by libavcodec.
1764 5d3cea3a Michael Niedermayer
     */
1765 5ff85f1d Michael Niedermayer
    AVRational sample_aspect_ratio;
1766 1e491e29 Michael Niedermayer
1767
    /**
1768 f5bccd85 Diego Biurrun
     * the picture in the bitstream
1769
     * - encoding: Set by libavcodec.
1770
     * - decoding: Set by libavcodec.
1771 1e491e29 Michael Niedermayer
     */
1772 492cd3a9 Michael Niedermayer
    AVFrame *coded_frame;
1773 c8c437bc Michael Niedermayer
1774
    /**
1775 f5bccd85 Diego Biurrun
     * debug
1776
     * - encoding: Set by user.
1777
     * - decoding: Set by user.
1778 c8c437bc Michael Niedermayer
     */
1779
    int debug;
1780 273b0cd3 Diego Biurrun
#define FF_DEBUG_PICT_INFO   1
1781
#define FF_DEBUG_RC          2
1782
#define FF_DEBUG_BITSTREAM   4
1783
#define FF_DEBUG_MB_TYPE     8
1784
#define FF_DEBUG_QP          16
1785
#define FF_DEBUG_MV          32
1786
#define FF_DEBUG_DCT_COEFF   0x00000040
1787
#define FF_DEBUG_SKIP        0x00000080
1788
#define FF_DEBUG_STARTCODE   0x00000100
1789
#define FF_DEBUG_PTS         0x00000200
1790
#define FF_DEBUG_ER          0x00000400
1791
#define FF_DEBUG_MMCO        0x00000800
1792
#define FF_DEBUG_BUGS        0x00001000
1793
#define FF_DEBUG_VIS_QP      0x00002000
1794 864119b6 Michael Niedermayer
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1795 385c820b Alexander Strange
#define FF_DEBUG_BUFFERS     0x00008000
1796 115329f1 Diego Biurrun
1797 140cb663 Michael Niedermayer
    /**
1798 f5bccd85 Diego Biurrun
     * debug
1799
     * - encoding: Set by user.
1800
     * - decoding: Set by user.
1801 0c9bbaec Wolfgang Hesseler
     */
1802
    int debug_mv;
1803
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1804
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1805
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1806
1807
    /**
1808 f5bccd85 Diego Biurrun
     * error
1809
     * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
1810 64863965 Michael Niedermayer
     * - decoding: unused
1811 140cb663 Michael Niedermayer
     */
1812
    uint64_t error[4];
1813 115329f1 Diego Biurrun
1814 17a70fde Michael Niedermayer
    /**
1815 f5bccd85 Diego Biurrun
     * minimum MB quantizer
1816 6e0d8c06 Michael Niedermayer
     * - encoding: unused
1817 64863965 Michael Niedermayer
     * - decoding: unused
1818 17a70fde Michael Niedermayer
     */
1819
    int mb_qmin;
1820
1821
    /**
1822 f5bccd85 Diego Biurrun
     * maximum MB quantizer
1823 6e0d8c06 Michael Niedermayer
     * - encoding: unused
1824 64863965 Michael Niedermayer
     * - decoding: unused
1825 17a70fde Michael Niedermayer
     */
1826
    int mb_qmax;
1827 115329f1 Diego Biurrun
1828 1457ab52 Michael Niedermayer
    /**
1829 f5bccd85 Diego Biurrun
     * motion estimation comparison function
1830
     * - encoding: Set by user.
1831 64863965 Michael Niedermayer
     * - decoding: unused
1832 1457ab52 Michael Niedermayer
     */
1833
    int me_cmp;
1834
    /**
1835 f5bccd85 Diego Biurrun
     * subpixel motion estimation comparison function
1836
     * - encoding: Set by user.
1837 64863965 Michael Niedermayer
     * - decoding: unused
1838 1457ab52 Michael Niedermayer
     */
1839
    int me_sub_cmp;
1840
    /**
1841 f5bccd85 Diego Biurrun
     * macroblock comparison function (not supported yet)
1842
     * - encoding: Set by user.
1843 64863965 Michael Niedermayer
     * - decoding: unused
1844 1457ab52 Michael Niedermayer
     */
1845
    int mb_cmp;
1846 622348f9 Michael Niedermayer
    /**
1847 f5bccd85 Diego Biurrun
     * interlaced DCT comparison function
1848
     * - encoding: Set by user.
1849 622348f9 Michael Niedermayer
     * - decoding: unused
1850
     */
1851
    int ildct_cmp;
1852 273b0cd3 Diego Biurrun
#define FF_CMP_SAD    0
1853
#define FF_CMP_SSE    1
1854
#define FF_CMP_SATD   2
1855
#define FF_CMP_DCT    3
1856
#define FF_CMP_PSNR   4
1857
#define FF_CMP_BIT    5
1858
#define FF_CMP_RD     6
1859
#define FF_CMP_ZERO   7
1860
#define FF_CMP_VSAD   8
1861
#define FF_CMP_VSSE   9
1862
#define FF_CMP_NSSE   10
1863
#define FF_CMP_W53    11
1864
#define FF_CMP_W97    12
1865 0fd6aea1 Michael Niedermayer
#define FF_CMP_DCTMAX 13
1866 27c61ac5 Michael Niedermayer
#define FF_CMP_DCT264 14
1867 1457ab52 Michael Niedermayer
#define FF_CMP_CHROMA 256
1868 115329f1 Diego Biurrun
1869 1457ab52 Michael Niedermayer
    /**
1870 f5bccd85 Diego Biurrun
     * ME diamond size & shape
1871
     * - encoding: Set by user.
1872 64863965 Michael Niedermayer
     * - decoding: unused
1873 1457ab52 Michael Niedermayer
     */
1874
    int dia_size;
1875 b07a5980 Michael Niedermayer
1876
    /**
1877 f5bccd85 Diego Biurrun
     * amount of previous MV predictors (2a+1 x 2a+1 square)
1878
     * - encoding: Set by user.
1879 64863965 Michael Niedermayer
     * - decoding: unused
1880 b07a5980 Michael Niedermayer
     */
1881
    int last_predictor_count;
1882 70ac76c0 Michael Niedermayer
1883 f5fb6b34 Michael Niedermayer
    /**
1884 f5bccd85 Diego Biurrun
     * prepass for motion estimation
1885
     * - encoding: Set by user.
1886 64863965 Michael Niedermayer
     * - decoding: unused
1887 f5fb6b34 Michael Niedermayer
     */
1888
    int pre_me;
1889 b07a5980 Michael Niedermayer
1890 70ac76c0 Michael Niedermayer
    /**
1891 f5bccd85 Diego Biurrun
     * motion estimation prepass comparison function
1892
     * - encoding: Set by user.
1893 64863965 Michael Niedermayer
     * - decoding: unused
1894 70ac76c0 Michael Niedermayer
     */
1895
    int me_pre_cmp;
1896 826f429a Michael Niedermayer
1897 70ac76c0 Michael Niedermayer
    /**
1898 f5bccd85 Diego Biurrun
     * ME prepass diamond size & shape
1899
     * - encoding: Set by user.
1900 64863965 Michael Niedermayer
     * - decoding: unused
1901 70ac76c0 Michael Niedermayer
     */
1902
    int pre_dia_size;
1903
1904 826f429a Michael Niedermayer
    /**
1905 f5bccd85 Diego Biurrun
     * subpel ME quality
1906
     * - encoding: Set by user.
1907 64863965 Michael Niedermayer
     * - decoding: unused
1908 826f429a Michael Niedermayer
     */
1909
    int me_subpel_quality;
1910
1911 a33c7159 Michael Niedermayer
    /**
1912 f5bccd85 Diego Biurrun
     * callback to negotiate the pixelFormat
1913 a33c7159 Michael Niedermayer
     * @param fmt is the list of formats which are supported by the codec,
1914 f5bccd85 Diego Biurrun
     * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
1915
     * The first is always the native one.
1916
     * @return the chosen format
1917 64863965 Michael Niedermayer
     * - encoding: unused
1918 f5bccd85 Diego Biurrun
     * - decoding: Set by user, if not set the native format will be chosen.
1919 a33c7159 Michael Niedermayer
     */
1920 494c56d3 Ivan Kalvachev
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1921 e2f9490e Fabrice Bellard
1922
    /**
1923 f5bccd85 Diego Biurrun
     * DTG active format information (additional aspect ratio
1924
     * information only used in DVB MPEG-2 transport streams)
1925
     * 0 if not set.
1926 115329f1 Diego Biurrun
     *
1927 f5bccd85 Diego Biurrun
     * - encoding: unused
1928
     * - decoding: Set by decoder.
1929 e2f9490e Fabrice Bellard
     */
1930
    int dtg_active_format;
1931
#define FF_DTG_AFD_SAME         8
1932
#define FF_DTG_AFD_4_3          9
1933
#define FF_DTG_AFD_16_9         10
1934
#define FF_DTG_AFD_14_9         11
1935
#define FF_DTG_AFD_4_3_SP_14_9  13
1936
#define FF_DTG_AFD_16_9_SP_14_9 14
1937
#define FF_DTG_AFD_SP_4_3       15
1938
1939 ebbcdc9a Michael Niedermayer
    /**
1940 f5bccd85 Diego Biurrun
     * maximum motion estimation search range in subpel units
1941
     * If 0 then no limit.
1942 115329f1 Diego Biurrun
     *
1943 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1944
     * - decoding: unused
1945 ebbcdc9a Michael Niedermayer
     */
1946 59e0ac8e Zdenek Kabelac
    int me_range;
1947 ebbcdc9a Michael Niedermayer
1948 65f7062d Michael Niedermayer
    /**
1949 f5bccd85 Diego Biurrun
     * intra quantizer bias
1950
     * - encoding: Set by user.
1951 1984f635 Michael Niedermayer
     * - decoding: unused
1952
     */
1953
    int intra_quant_bias;
1954
#define FF_DEFAULT_QUANT_BIAS 999999
1955 115329f1 Diego Biurrun
1956 1984f635 Michael Niedermayer
    /**
1957 f5bccd85 Diego Biurrun
     * inter quantizer bias
1958
     * - encoding: Set by user.
1959 1984f635 Michael Niedermayer
     * - decoding: unused
1960
     */
1961
    int inter_quant_bias;
1962 5cd62665 Zdenek Kabelac
1963
    /**
1964 f5bccd85 Diego Biurrun
     * color table ID
1965
     * - encoding: unused
1966
     * - decoding: Which clrtable should be used for 8bit RGB images.
1967
     *             Tables have to be stored somewhere. FIXME
1968 5cd62665 Zdenek Kabelac
     */
1969
    int color_table_id;
1970 115329f1 Diego Biurrun
1971 d90cf87b Michael Niedermayer
    /**
1972 f5bccd85 Diego Biurrun
     * internal_buffer count
1973
     * Don't touch, used by libavcodec default_get_buffer().
1974 d90cf87b Michael Niedermayer
     */
1975
    int internal_buffer_count;
1976 115329f1 Diego Biurrun
1977 d90cf87b Michael Niedermayer
    /**
1978 f5bccd85 Diego Biurrun
     * internal_buffers
1979
     * Don't touch, used by libavcodec default_get_buffer().
1980 d90cf87b Michael Niedermayer
     */
1981
    void *internal_buffer;
1982 158c7f05 Michael Niedermayer
1983 3d2e8cce Michael Niedermayer
    /**
1984 f5bccd85 Diego Biurrun
     * Global quality for codecs which cannot change it per frame.
1985
     * This should be proportional to MPEG-1/2/4 qscale.
1986
     * - encoding: Set by user.
1987 3d2e8cce Michael Niedermayer
     * - decoding: unused
1988
     */
1989
    int global_quality;
1990 115329f1 Diego Biurrun
1991 bd446bb1 Michael Niedermayer
#define FF_CODER_TYPE_VLC       0
1992
#define FF_CODER_TYPE_AC        1
1993 f87459e4 Kamil Nowosad
#define FF_CODER_TYPE_RAW       2
1994
#define FF_CODER_TYPE_RLE       3
1995
#define FF_CODER_TYPE_DEFLATE   4
1996 11e659c2 Michael Niedermayer
    /**
1997
     * coder type
1998 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
1999 11e659c2 Michael Niedermayer
     * - decoding: unused
2000
     */
2001
    int coder_type;
2002
2003
    /**
2004
     * context model
2005 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2006 11e659c2 Michael Niedermayer
     * - decoding: unused
2007
     */
2008
    int context_model;
2009 5639729b Michael Niedermayer
#if 0
2010
    /**
2011
     *
2012
     * - encoding: unused
2013 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2014 5639729b Michael Niedermayer
     */
2015
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
2016
#endif
2017 115329f1 Diego Biurrun
2018 3bb07d61 Michael Niedermayer
    /**
2019
     * slice flags
2020
     * - encoding: unused
2021 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2022 3bb07d61 Michael Niedermayer
     */
2023
    int slice_flags;
2024
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
2025
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
2026
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
2027
2028 fb364ada Ivan Kalvachev
    /**
2029
     * XVideo Motion Acceleration
2030
     * - encoding: forbidden
2031
     * - decoding: set by decoder
2032
     */
2033
    int xvmc_acceleration;
2034 115329f1 Diego Biurrun
2035 7d1c3fc1 Michael Niedermayer
    /**
2036
     * macroblock decision mode
2037 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2038 7d1c3fc1 Michael Niedermayer
     * - decoding: unused
2039
     */
2040
    int mb_decision;
2041
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
2042
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
2043 e6dba5df Ramiro Polla
#define FF_MB_DECISION_RD     2        ///< rate distortion
2044 d6eb3c50 Michael Niedermayer
2045
    /**
2046
     * custom intra quantization matrix
2047 f5bccd85 Diego Biurrun
     * - encoding: Set by user, can be NULL.
2048
     * - decoding: Set by libavcodec.
2049 d6eb3c50 Michael Niedermayer
     */
2050
    uint16_t *intra_matrix;
2051
2052
    /**
2053
     * custom inter quantization matrix
2054 f5bccd85 Diego Biurrun
     * - encoding: Set by user, can be NULL.
2055
     * - decoding: Set by libavcodec.
2056 d6eb3c50 Michael Niedermayer
     */
2057
    uint16_t *inter_matrix;
2058 115329f1 Diego Biurrun
2059 541ae140 Michael Niedermayer
    /**
2060
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
2061 f5bccd85 Diego Biurrun
     * This is used to work around some encoder bugs.
2062 541ae140 Michael Niedermayer
     * - encoding: unused
2063 f5bccd85 Diego Biurrun
     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
2064 541ae140 Michael Niedermayer
     */
2065
    unsigned int stream_codec_tag;
2066 05fbd0a2 Michael Niedermayer
2067
    /**
2068 f5bccd85 Diego Biurrun
     * scene change detection threshold
2069
     * 0 is default, larger means fewer detected scene changes.
2070
     * - encoding: Set by user.
2071 05fbd0a2 Michael Niedermayer
     * - decoding: unused
2072
     */
2073
    int scenechange_threshold;
2074 158c7f05 Michael Niedermayer
2075
    /**
2076 f5bccd85 Diego Biurrun
     * minimum Lagrange multipler
2077
     * - encoding: Set by user.
2078 158c7f05 Michael Niedermayer
     * - decoding: unused
2079
     */
2080
    int lmin;
2081
2082
    /**
2083 f5bccd85 Diego Biurrun
     * maximum Lagrange multipler
2084
     * - encoding: Set by user.
2085 158c7f05 Michael Niedermayer
     * - decoding: unused
2086
     */
2087
    int lmax;
2088 2a2bbcb0 Mike Melanson
2089 eda7c983 Aurelien Jacobs
#if FF_API_PALETTE_CONTROL
2090 2a2bbcb0 Mike Melanson
    /**
2091 f5bccd85 Diego Biurrun
     * palette control structure
2092 2a2bbcb0 Mike Melanson
     * - encoding: ??? (no palette-enabled encoder yet)
2093 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2094 2a2bbcb0 Mike Melanson
     */
2095
    struct AVPaletteControl *palctrl;
2096 eda7c983 Aurelien Jacobs
#endif
2097 821cb11f Michael Niedermayer
2098
    /**
2099
     * noise reduction strength
2100 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2101 821cb11f Michael Niedermayer
     * - decoding: unused
2102
     */
2103
    int noise_reduction;
2104 115329f1 Diego Biurrun
2105 074c4ca7 Roberto Togni
    /**
2106 f5bccd85 Diego Biurrun
     * Called at the beginning of a frame to get cr buffer for it.
2107
     * Buffer type (size, hints) must be the same. libavcodec won't check it.
2108
     * libavcodec will pass previous buffer in pic, function should return
2109 e1c2a5a0 Roberto Togni
     * same buffer or new buffer with old frame "painted" into it.
2110 f5bccd85 Diego Biurrun
     * If pic.data[0] == NULL must behave like get_buffer().
2111 f1b99cc6 Michael Niedermayer
     * if CODEC_CAP_DR1 is not set then reget_buffer() must call
2112
     * avcodec_default_reget_buffer() instead of providing buffers allocated by
2113
     * some other means.
2114 074c4ca7 Roberto Togni
     * - encoding: unused
2115 53128bc3 Peter Ross
     * - decoding: Set by libavcodec, user can override.
2116 074c4ca7 Roberto Togni
     */
2117 e1c2a5a0 Roberto Togni
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
2118 ba58dabc Michael Niedermayer
2119
    /**
2120 f5bccd85 Diego Biurrun
     * Number of bits which should be loaded into the rc buffer before decoding starts.
2121
     * - encoding: Set by user.
2122 ba58dabc Michael Niedermayer
     * - decoding: unused
2123
     */
2124
    int rc_initial_buffer_occupancy;
2125
2126
    /**
2127
     *
2128 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2129 ba58dabc Michael Niedermayer
     * - decoding: unused
2130
     */
2131
    int inter_threshold;
2132
2133
    /**
2134 f5bccd85 Diego Biurrun
     * CODEC_FLAG2_*
2135
     * - encoding: Set by user.
2136
     * - decoding: Set by user.
2137 ba58dabc Michael Niedermayer
     */
2138
    int flags2;
2139 7ebfc0ea Michael Niedermayer
2140
    /**
2141 f5bccd85 Diego Biurrun
     * Simulates errors in the bitstream to test error concealment.
2142
     * - encoding: Set by user.
2143
     * - decoding: unused
2144 7ebfc0ea Michael Niedermayer
     */
2145
    int error_rate;
2146 115329f1 Diego Biurrun
2147 a1e257b2 Michael Niedermayer
    /**
2148
     * MP3 antialias algorithm, see FF_AA_* below.
2149
     * - encoding: unused
2150 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2151 a1e257b2 Michael Niedermayer
     */
2152
    int antialias_algo;
2153
#define FF_AA_AUTO    0
2154
#define FF_AA_FASTINT 1 //not implemented yet
2155
#define FF_AA_INT     2
2156
#define FF_AA_FLOAT   3
2157 77ea0d4b Michael Niedermayer
    /**
2158 f5bccd85 Diego Biurrun
     * quantizer noise shaping
2159
     * - encoding: Set by user.
2160 77ea0d4b Michael Niedermayer
     * - decoding: unused
2161
     */
2162
    int quantizer_noise_shaping;
2163 9c3d33d6 Michael Niedermayer
2164
    /**
2165 f5bccd85 Diego Biurrun
     * thread count
2166 eafcac6a Diego Biurrun
     * is used to decide how many independent tasks should be passed to execute()
2167 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2168
     * - decoding: Set by user.
2169 9c3d33d6 Michael Niedermayer
     */
2170
    int thread_count;
2171 115329f1 Diego Biurrun
2172 9c3d33d6 Michael Niedermayer
    /**
2173 f5bccd85 Diego Biurrun
     * The codec may call this to execute several independent things.
2174
     * It will return only after finishing all tasks.
2175
     * The user may replace this with some multithreaded implementation,
2176
     * the default implementation will execute the parts serially.
2177 399cec2f Michael Niedermayer
     * @param count the number of things to execute
2178 f5bccd85 Diego Biurrun
     * - encoding: Set by libavcodec, user can override.
2179
     * - decoding: Set by libavcodec, user can override.
2180 9c3d33d6 Michael Niedermayer
     */
2181 3a84713a Roman Shaposhnik
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
2182 115329f1 Diego Biurrun
2183 9c3d33d6 Michael Niedermayer
    /**
2184 f5bccd85 Diego Biurrun
     * thread opaque
2185
     * Can be used by execute() to store some per AVCodecContext stuff.
2186 9c3d33d6 Michael Niedermayer
     * - encoding: set by execute()
2187
     * - decoding: set by execute()
2188
     */
2189
    void *thread_opaque;
2190 a4d36c11 Michael Niedermayer
2191
    /**
2192 f5bccd85 Diego Biurrun
     * Motion estimation threshold below which no motion estimation is
2193
     * performed, but instead the user specified motion vectors are used.
2194 115329f1 Diego Biurrun
     *
2195 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2196 f20f8a8b Michael Niedermayer
     * - decoding: unused
2197 a4d36c11 Michael Niedermayer
     */
2198 2750b827 Michael Niedermayer
     int me_threshold;
2199 f20f8a8b Michael Niedermayer
2200
    /**
2201 f5bccd85 Diego Biurrun
     * Macroblock threshold below which the user specified macroblock types will be used.
2202
     * - encoding: Set by user.
2203 f20f8a8b Michael Niedermayer
     * - decoding: unused
2204
     */
2205
     int mb_threshold;
2206 bf266e19 Michael Niedermayer
2207
    /**
2208 f5bccd85 Diego Biurrun
     * precision of the intra DC coefficient - 8
2209
     * - encoding: Set by user.
2210 bf266e19 Michael Niedermayer
     * - decoding: unused
2211
     */
2212
     int intra_dc_precision;
2213 d4c5d2ad Michael Niedermayer
2214
    /**
2215 f5bccd85 Diego Biurrun
     * noise vs. sse weight for the nsse comparsion function
2216
     * - encoding: Set by user.
2217 d4c5d2ad Michael Niedermayer
     * - decoding: unused
2218
     */
2219
     int nsse_weight;
2220 0dfd33c3 Michael Niedermayer
2221
    /**
2222 f5bccd85 Diego Biurrun
     * Number of macroblock rows at the top which are skipped.
2223 0dfd33c3 Michael Niedermayer
     * - encoding: unused
2224 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2225 0dfd33c3 Michael Niedermayer
     */
2226
     int skip_top;
2227
2228
    /**
2229 f5bccd85 Diego Biurrun
     * Number of macroblock rows at the bottom which are skipped.
2230 0dfd33c3 Michael Niedermayer
     * - encoding: unused
2231 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2232 0dfd33c3 Michael Niedermayer
     */
2233
     int skip_bottom;
2234 baced9f5 Michael Niedermayer
2235
    /**
2236
     * profile
2237 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2238
     * - decoding: Set by libavcodec.
2239 baced9f5 Michael Niedermayer
     */
2240
     int profile;
2241
#define FF_PROFILE_UNKNOWN -99
2242 dd0cd3d2 Rafaël Carré
2243 4f2c36ac Nicolas George
#define FF_PROFILE_AAC_MAIN 0
2244 273b0cd3 Diego Biurrun
#define FF_PROFILE_AAC_LOW  1
2245
#define FF_PROFILE_AAC_SSR  2
2246
#define FF_PROFILE_AAC_LTP  3
2247 baced9f5 Michael Niedermayer
2248 f5a2d285 Anssi Hannula
#define FF_PROFILE_DTS         20
2249
#define FF_PROFILE_DTS_ES      30
2250
#define FF_PROFILE_DTS_96_24   40
2251
#define FF_PROFILE_DTS_HD_HRA  50
2252
#define FF_PROFILE_DTS_HD_MA   60
2253
2254 dd0cd3d2 Rafaël Carré
#define FF_PROFILE_H264_BASELINE    66
2255
#define FF_PROFILE_H264_MAIN        77
2256
#define FF_PROFILE_H264_EXTENDED    88
2257
#define FF_PROFILE_H264_HIGH        100
2258
#define FF_PROFILE_H264_HIGH_10     110
2259
#define FF_PROFILE_H264_HIGH_422    122
2260
#define FF_PROFILE_H264_HIGH_444    244
2261
#define FF_PROFILE_H264_CAVLC_444   44
2262
2263 baced9f5 Michael Niedermayer
    /**
2264
     * level
2265 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2266
     * - decoding: Set by libavcodec.
2267 baced9f5 Michael Niedermayer
     */
2268
     int level;
2269
#define FF_LEVEL_UNKNOWN -99
2270 178fcca8 Michael Niedermayer
2271
    /**
2272 f5bccd85 Diego Biurrun
     * low resolution decoding, 1-> 1/2 size, 2->1/4 size
2273 178fcca8 Michael Niedermayer
     * - encoding: unused
2274 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2275 178fcca8 Michael Niedermayer
     */
2276
     int lowres;
2277 21adafec Michael Niedermayer
2278
    /**
2279 f5bccd85 Diego Biurrun
     * Bitstream width / height, may be different from width/height if lowres
2280
     * or other things are used.
2281 21adafec Michael Niedermayer
     * - encoding: unused
2282 f5bccd85 Diego Biurrun
     * - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
2283 21adafec Michael Niedermayer
     */
2284
    int coded_width, coded_height;
2285 bbf18b21 Michael Niedermayer
2286
    /**
2287
     * frame skip threshold
2288 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2289 bbf18b21 Michael Niedermayer
     * - decoding: unused
2290
     */
2291
    int frame_skip_threshold;
2292
2293
    /**
2294
     * frame skip factor
2295 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2296 bbf18b21 Michael Niedermayer
     * - decoding: unused
2297
     */
2298
    int frame_skip_factor;
2299 0fd6aea1 Michael Niedermayer
2300
    /**
2301
     * frame skip exponent
2302 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2303 0fd6aea1 Michael Niedermayer
     * - decoding: unused
2304
     */
2305
    int frame_skip_exp;
2306
2307
    /**
2308 f5bccd85 Diego Biurrun
     * frame skip comparison function
2309
     * - encoding: Set by user.
2310 0fd6aea1 Michael Niedermayer
     * - decoding: unused
2311
     */
2312
    int frame_skip_cmp;
2313 957c743a Christophe Massiot
2314
    /**
2315 f5bccd85 Diego Biurrun
     * Border processing masking, raises the quantizer for mbs on the borders
2316 957c743a Christophe Massiot
     * of the picture.
2317 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2318 957c743a Christophe Massiot
     * - decoding: unused
2319
     */
2320
    float border_masking;
2321 6e0d8c06 Michael Niedermayer
2322
    /**
2323 f5bccd85 Diego Biurrun
     * minimum MB lagrange multipler
2324
     * - encoding: Set by user.
2325 6e0d8c06 Michael Niedermayer
     * - decoding: unused
2326
     */
2327
    int mb_lmin;
2328
2329
    /**
2330 f5bccd85 Diego Biurrun
     * maximum MB lagrange multipler
2331
     * - encoding: Set by user.
2332 6e0d8c06 Michael Niedermayer
     * - decoding: unused
2333
     */
2334
    int mb_lmax;
2335 09c3e44e Michael Niedermayer
2336
    /**
2337 115329f1 Diego Biurrun
     *
2338 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2339 09c3e44e Michael Niedermayer
     * - decoding: unused
2340
     */
2341
    int me_penalty_compensation;
2342 8c3eba7c Michael Niedermayer
2343
    /**
2344 115329f1 Diego Biurrun
     *
2345 8c3eba7c Michael Niedermayer
     * - encoding: unused
2346 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2347 8c3eba7c Michael Niedermayer
     */
2348
    enum AVDiscard skip_loop_filter;
2349
2350
    /**
2351 115329f1 Diego Biurrun
     *
2352 8c3eba7c Michael Niedermayer
     * - encoding: unused
2353 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2354 8c3eba7c Michael Niedermayer
     */
2355
    enum AVDiscard skip_idct;
2356
2357
    /**
2358 115329f1 Diego Biurrun
     *
2359 8c3eba7c Michael Niedermayer
     * - encoding: unused
2360 f5bccd85 Diego Biurrun
     * - decoding: Set by user.
2361 8c3eba7c Michael Niedermayer
     */
2362
    enum AVDiscard skip_frame;
2363 316a2ec8 Michael Niedermayer
2364
    /**
2365
     *
2366 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2367 316a2ec8 Michael Niedermayer
     * - decoding: unused
2368
     */
2369
    int bidir_refine;
2370 e8501c93 Michael Niedermayer
2371
    /**
2372
     *
2373 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2374 e8501c93 Michael Niedermayer
     * - decoding: unused
2375
     */
2376
    int brd_scale;
2377 58f7833e Robert Swain
2378
    /**
2379
     * constant rate factor - quality-based VBR - values ~correspond to qps
2380 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2381 58f7833e Robert Swain
     * - decoding: unused
2382
     */
2383 9f1c1c99 Luca Barbato
    float crf;
2384 58f7833e Robert Swain
2385
    /**
2386
     * constant quantization parameter rate control method
2387 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2388 58f7833e Robert Swain
     * - decoding: unused
2389
     */
2390
    int cqp;
2391
2392
    /**
2393 f5bccd85 Diego Biurrun
     * minimum GOP size
2394
     * - encoding: Set by user.
2395 58f7833e Robert Swain
     * - decoding: unused
2396
     */
2397
    int keyint_min;
2398
2399
    /**
2400
     * number of reference frames
2401 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2402 53d55e9e Michael Niedermayer
     * - decoding: Set by lavc.
2403 58f7833e Robert Swain
     */
2404
    int refs;
2405
2406
    /**
2407
     * chroma qp offset from luma
2408 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2409 58f7833e Robert Swain
     * - decoding: unused
2410
     */
2411
    int chromaoffset;
2412
2413
    /**
2414 f5bccd85 Diego Biurrun
     * Influences how often B-frames are used.
2415
     * - encoding: Set by user.
2416 58f7833e Robert Swain
     * - decoding: unused
2417
     */
2418
    int bframebias;
2419
2420
    /**
2421
     * trellis RD quantization
2422 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2423 58f7833e Robert Swain
     * - decoding: unused
2424
     */
2425
    int trellis;
2426
2427
    /**
2428 f5bccd85 Diego Biurrun
     * Reduce fluctuations in qp (before curve compression).
2429
     * - encoding: Set by user.
2430 58f7833e Robert Swain
     * - decoding: unused
2431
     */
2432
    float complexityblur;
2433
2434
    /**
2435
     * in-loop deblocking filter alphac0 parameter
2436
     * alpha is in the range -6...6
2437 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2438 58f7833e Robert Swain
     * - decoding: unused
2439
     */
2440
    int deblockalpha;
2441
2442
    /**
2443
     * in-loop deblocking filter beta parameter
2444
     * beta is in the range -6...6
2445 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2446 58f7833e Robert Swain
     * - decoding: unused
2447
     */
2448
    int deblockbeta;
2449
2450
    /**
2451
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
2452 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2453 58f7833e Robert Swain
     * - decoding: unused
2454
     */
2455
    int partitions;
2456 56cc85a0 Diego Biurrun
#define X264_PART_I4X4 0x001  /* Analyze i4x4 */
2457
#define X264_PART_I8X8 0x002  /* Analyze i8x8 (requires 8x8 transform) */
2458
#define X264_PART_P8X8 0x010  /* Analyze p16x8, p8x16 and p8x8 */
2459
#define X264_PART_P4X4 0x020  /* Analyze p8x4, p4x8, p4x4 */
2460
#define X264_PART_B8X8 0x100  /* Analyze b16x8, b8x16 and b8x8 */
2461 58f7833e Robert Swain
2462
    /**
2463 30ab4ded Francesco Cosoleto
     * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)
2464 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2465 58f7833e Robert Swain
     * - decoding: unused
2466
     */
2467
    int directpred;
2468 4f59b684 Diego Biurrun
2469 14f0c8e2 Luca Abeni
    /**
2470 02c164c1 Justin Ruggles
     * Audio cutoff bandwidth (0 means "automatic")
2471 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2472 14f0c8e2 Luca Abeni
     * - decoding: unused
2473
     */
2474
    int cutoff;
2475 39a64e30 Corey Hickey
2476
    /**
2477 f5bccd85 Diego Biurrun
     * Multiplied by qscale for each frame and added to scene_change_score.
2478
     * - encoding: Set by user.
2479 39a64e30 Corey Hickey
     * - decoding: unused
2480
     */
2481
    int scenechange_factor;
2482 1dd509b1 Michael Niedermayer
2483
    /**
2484
     *
2485 f5bccd85 Diego Biurrun
     * Note: Value depends upon the compare function used for fullpel ME.
2486
     * - encoding: Set by user.
2487 1dd509b1 Michael Niedermayer
     * - decoding: unused
2488
     */
2489
    int mv0_threshold;
2490 f9243d34 Corey Hickey
2491
    /**
2492 f5bccd85 Diego Biurrun
     * Adjusts sensitivity of b_frame_strategy 1.
2493
     * - encoding: Set by user.
2494 f9243d34 Corey Hickey
     * - decoding: unused
2495
     */
2496
    int b_sensitivity;
2497 a403fc03 Justin Ruggles
2498
    /**
2499 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2500 a403fc03 Justin Ruggles
     * - decoding: unused
2501
     */
2502
    int compression_level;
2503
#define FF_COMPRESSION_DEFAULT -1
2504
2505 0743de4f Aurelien Jacobs
#if FF_API_USE_LPC
2506 a403fc03 Justin Ruggles
    /**
2507 f5bccd85 Diego Biurrun
     * Sets whether to use LPC mode - used by FLAC encoder.
2508
     * - encoding: Set by user.
2509
     * - decoding: unused
2510 23940f14 Justin Ruggles
     * @deprecated Deprecated in favor of lpc_type and lpc_passes.
2511 a403fc03 Justin Ruggles
     */
2512
    int use_lpc;
2513 23940f14 Justin Ruggles
#endif
2514 a403fc03 Justin Ruggles
2515
    /**
2516
     * LPC coefficient precision - used by FLAC encoder
2517 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2518
     * - decoding: unused
2519 a403fc03 Justin Ruggles
     */
2520
    int lpc_coeff_precision;
2521
2522
    /**
2523 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2524
     * - decoding: unused
2525 a403fc03 Justin Ruggles
     */
2526
    int min_prediction_order;
2527
2528
    /**
2529 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2530
     * - decoding: unused
2531 a403fc03 Justin Ruggles
     */
2532
    int max_prediction_order;
2533
2534
    /**
2535
     * search method for selecting prediction order
2536 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2537
     * - decoding: unused
2538 a403fc03 Justin Ruggles
     */
2539
    int prediction_order_method;
2540
2541
    /**
2542 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2543
     * - decoding: unused
2544 a403fc03 Justin Ruggles
     */
2545
    int min_partition_order;
2546
2547
    /**
2548 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2549
     * - decoding: unused
2550 a403fc03 Justin Ruggles
     */
2551
    int max_partition_order;
2552 80d617f5 Baptiste Coudurier
2553
    /**
2554
     * GOP timecode frame start number, in non drop frame format
2555 f5bccd85 Diego Biurrun
     * - encoding: Set by user.
2556
     * - decoding: unused
2557 80d617f5 Baptiste Coudurier
     */
2558
    int64_t timecode_frame_start;
2559 b1ec601f Reimar Döffinger
2560 0d72e7d0 Peter Ross
#if LIBAVCODEC_VERSION_MAJOR < 53
2561 b1ec601f Reimar Döffinger
    /**
2562 85947156 Vitor Sessak
     * Decoder should decode to this many channels if it can (0 for default)
2563
     * - encoding: unused
2564
     * - decoding: Set by user.
2565 0d72e7d0 Peter Ross
     * @deprecated Deprecated in favor of request_channel_layout.
2566 b1ec601f Reimar Döffinger
     */
2567
    int request_channels;
2568 0d72e7d0 Peter Ross
#endif
2569 1408352a Justin Ruggles
2570
    /**
2571
     * Percentage of dynamic range compression to be applied by the decoder.
2572
     * The default value is 1.0, corresponding to full compression.
2573
     * - encoding: unused
2574
     * - decoding: Set by user.
2575
     */
2576
    float drc_scale;
2577 79de84f2 Michael Niedermayer
2578
    /**
2579
     * opaque 64bit number (generally a PTS) that will be reordered and
2580
     * output in AVFrame.reordered_opaque
2581
     * - encoding: unused
2582
     * - decoding: Set by user.
2583
     */
2584
    int64_t reordered_opaque;
2585 312420f3 Peter Ross
2586
    /**
2587
     * Bits per sample/pixel of internal libavcodec pixel/sample format.
2588 5d6e4c16 Stefano Sabatini
     * This field is applicable only when sample_fmt is AV_SAMPLE_FMT_S32.
2589 312420f3 Peter Ross
     * - encoding: set by user.
2590
     * - decoding: set by libavcodec.
2591
     */
2592
    int bits_per_raw_sample;
2593 0d72e7d0 Peter Ross
2594
    /**
2595
     * Audio channel layout.
2596
     * - encoding: set by user.
2597
     * - decoding: set by libavcodec.
2598
     */
2599
    int64_t channel_layout;
2600
2601
    /**
2602
     * Request decoder to use this channel layout if it can (0 for default)
2603
     * - encoding: unused
2604
     * - decoding: Set by user.
2605
     */
2606
    int64_t request_channel_layout;
2607 3bff4d8b Baptiste Coudurier