Produce correct version string even when not run in a Subversion working copy.
[libav.git] / libavcodec / avcodec.h
CommitLineData
a96b68b7
FB
1#ifndef AVCODEC_H
2#define AVCODEC_H
3
36df8805
MN
4/**
5 * @file avcodec.h
d33c949c 6 * external api header.
36df8805
MN
7 */
8
9
02d697aa
ZK
10#ifdef __cplusplus
11extern "C" {
12#endif
13
c11c2bc2 14#include "avutil.h"
4b813d5c 15#include <sys/types.h> /* size_t */
de6d9b64 16
bb270c08 17#define AV_STRINGIFY(s) AV_TOSTRING(s)
7b7d86f1 18#define AV_TOSTRING(s) #s
5aa083ee 19
fd7b1991
KS
20#define LIBAVCODEC_VERSION_INT ((51<<16)+(9<<8)+0)
21#define LIBAVCODEC_VERSION 51.9.0
bb270c08 22#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
5aa083ee 23
bb270c08 24#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
ce2749d2 25
bb270c08
DB
26#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
27#define AV_TIME_BASE 1000000
28#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
9740beff 29
de6d9b64 30enum CodecID {
115329f1 31 CODEC_ID_NONE,
de6d9b64 32 CODEC_ID_MPEG1VIDEO,
dcedf586 33 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 34 CODEC_ID_MPEG2VIDEO_XVMC,
c6148de2 35 CODEC_ID_H261,
de6d9b64
FB
36 CODEC_ID_H263,
37 CODEC_ID_RV10,
68b94c35 38 CODEC_ID_RV20,
de6d9b64 39 CODEC_ID_MJPEG,
b135d9fb 40 CODEC_ID_MJPEGB,
b1e6b355 41 CODEC_ID_LJPEG,
5e83dec4 42 CODEC_ID_SP5X,
5639729b 43 CODEC_ID_JPEGLS,
bf89e6b1 44 CODEC_ID_MPEG4,
de6d9b64 45 CODEC_ID_RAWVIDEO,
84afee34
MN
46 CODEC_ID_MSMPEG4V1,
47 CODEC_ID_MSMPEG4V2,
48 CODEC_ID_MSMPEG4V3,
e1a9dbff 49 CODEC_ID_WMV1,
b50eef3a 50 CODEC_ID_WMV2,
de6d9b64
FB
51 CODEC_ID_H263P,
52 CODEC_ID_H263I,
d4f5d74a 53 CODEC_ID_FLV1,
be8ffec9 54 CODEC_ID_SVQ1,
8b82a956 55 CODEC_ID_SVQ3,
020fcc94 56 CODEC_ID_DVVIDEO,
11f18faf 57 CODEC_ID_HUFFYUV,
f70f7c6d 58 CODEC_ID_CYUV,
0da71265 59 CODEC_ID_H264,
deabd4fd 60 CODEC_ID_INDEO3,
d86053a4 61 CODEC_ID_VP3,
f44ee2c3 62 CODEC_ID_THEORA,
3d2e8cce 63 CODEC_ID_ASV1,
9b56edf5 64 CODEC_ID_ASV2,
5e20f836 65 CODEC_ID_FFV1,
e2a7bb28 66 CODEC_ID_4XM,
be3564ed 67 CODEC_ID_VCR1,
3aff069b 68 CODEC_ID_CLJR,
c3bf0288 69 CODEC_ID_MDEC,
3ef8be2b
MM
70 CODEC_ID_ROQ,
71 CODEC_ID_INTERPLAY_VIDEO,
9937e686
MM
72 CODEC_ID_XAN_WC3,
73 CODEC_ID_XAN_WC4,
2fdf638b
MM
74 CODEC_ID_RPZA,
75 CODEC_ID_CINEPAK,
76 CODEC_ID_WS_VQA,
77 CODEC_ID_MSRLE,
78 CODEC_ID_MSVIDEO1,
4120a53a 79 CODEC_ID_IDCIN,
1dc1ed99 80 CODEC_ID_8BPS,
11e29a41 81 CODEC_ID_SMC,
42cad81a 82 CODEC_ID_FLIC,
9a4117d5 83 CODEC_ID_TRUEMOTION1,
fafa0b75 84 CODEC_ID_VMDVIDEO,
a273bbfb
RT
85 CODEC_ID_MSZH,
86 CODEC_ID_ZLIB,
070ed1bc 87 CODEC_ID_QTRLE,
791e7b83 88 CODEC_ID_SNOW,
9d53d58e 89 CODEC_ID_TSCC,
d0a0bbd2 90 CODEC_ID_ULTI,
d08d7142 91 CODEC_ID_QDRAW,
ab711b3c 92 CODEC_ID_VIXL,
acfd8f0f 93 CODEC_ID_QPEG,
17179d2d
MN
94 CODEC_ID_XVID,
95 CODEC_ID_PNG,
96 CODEC_ID_PPM,
97 CODEC_ID_PBM,
98 CODEC_ID_PGM,
99 CODEC_ID_PGMYUV,
100 CODEC_ID_PAM,
f37b9768 101 CODEC_ID_FFVHUFF,
3f05305d
MN
102 CODEC_ID_RV30,
103 CODEC_ID_RV40,
21aa398f
AB
104 CODEC_ID_VC9,
105 CODEC_ID_WMV3,
9c7fb608 106 CODEC_ID_LOCO,
a8a15e9d 107 CODEC_ID_WNV1,
589f8220 108 CODEC_ID_AASC,
856dbbff 109 CODEC_ID_INDEO2,
b81f8949 110 CODEC_ID_FRAPS,
64af6168 111 CODEC_ID_TRUEMOTION2,
9fa62f2a 112 CODEC_ID_BMP,
e0f80bd7 113 CODEC_ID_CSCD,
4e114829 114 CODEC_ID_MMVIDEO,
9c8d8e84 115 CODEC_ID_ZMBV,
26376701 116 CODEC_ID_AVS,
348efc18 117 CODEC_ID_SMACKVIDEO,
dfca23e3 118 CODEC_ID_NUV,
fd7b1991 119 CODEC_ID_KMVC,
0919e788 120 CODEC_ID_FLASHSV,
a96b68b7
FB
121
122 /* various pcm "codecs" */
17179d2d 123 CODEC_ID_PCM_S16LE= 0x10000,
a96b68b7
FB
124 CODEC_ID_PCM_S16BE,
125 CODEC_ID_PCM_U16LE,
126 CODEC_ID_PCM_U16BE,
127 CODEC_ID_PCM_S8,
128 CODEC_ID_PCM_U8,
129 CODEC_ID_PCM_MULAW,
130 CODEC_ID_PCM_ALAW,
b461b3bc
RD
131 CODEC_ID_PCM_S32LE,
132 CODEC_ID_PCM_S32BE,
133 CODEC_ID_PCM_U32LE,
134 CODEC_ID_PCM_U32BE,
135 CODEC_ID_PCM_S24LE,
136 CODEC_ID_PCM_S24BE,
137 CODEC_ID_PCM_U24LE,
138 CODEC_ID_PCM_U24BE,
139 CODEC_ID_PCM_S24DAUD,
0147f198
FR
140
141 /* various adpcm codecs */
17179d2d 142 CODEC_ID_ADPCM_IMA_QT= 0x11000,
0147f198 143 CODEC_ID_ADPCM_IMA_WAV,
9937e686
MM
144 CODEC_ID_ADPCM_IMA_DK3,
145 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 146 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 147 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 148 CODEC_ID_ADPCM_MS,
e2a7bb28 149 CODEC_ID_ADPCM_4XM,
fc384777
MM
150 CODEC_ID_ADPCM_XA,
151 CODEC_ID_ADPCM_ADX,
7d8379f2 152 CODEC_ID_ADPCM_EA,
e5966052 153 CODEC_ID_ADPCM_G726,
b3bfb299 154 CODEC_ID_ADPCM_CT,
659c3692 155 CODEC_ID_ADPCM_SWF,
2ff4524e 156 CODEC_ID_ADPCM_YAMAHA,
2433f24f
AJ
157 CODEC_ID_ADPCM_SBPRO_4,
158 CODEC_ID_ADPCM_SBPRO_3,
159 CODEC_ID_ADPCM_SBPRO_2,
891f64b3 160
17179d2d
MN
161 /* AMR */
162 CODEC_ID_AMR_NB= 0x12000,
d663a1fd
MN
163 CODEC_ID_AMR_WB,
164
b8414bbd 165 /* RealAudio codecs*/
17179d2d 166 CODEC_ID_RA_144= 0x13000,
b8414bbd 167 CODEC_ID_RA_288,
3ef8be2b
MM
168
169 /* various DPCM codecs */
17179d2d 170 CODEC_ID_ROQ_DPCM= 0x14000,
3ef8be2b 171 CODEC_ID_INTERPLAY_DPCM,
9937e686 172 CODEC_ID_XAN_DPCM,
d08d7142 173 CODEC_ID_SOL_DPCM,
115329f1 174
17179d2d
MN
175 CODEC_ID_MP2= 0x15000,
176 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
177 CODEC_ID_AAC,
178 CODEC_ID_MPEG4AAC,
179 CODEC_ID_AC3,
180 CODEC_ID_DTS,
181 CODEC_ID_VORBIS,
182 CODEC_ID_DVAUDIO,
183 CODEC_ID_WMAV1,
184 CODEC_ID_WMAV2,
185 CODEC_ID_MACE3,
186 CODEC_ID_MACE6,
187 CODEC_ID_VMDAUDIO,
188 CODEC_ID_SONIC,
189 CODEC_ID_SONIC_LS,
ac2570a8 190 CODEC_ID_FLAC,
1ede228a 191 CODEC_ID_MP3ADU,
d2a7718d 192 CODEC_ID_MP3ON4,
85ad5695 193 CODEC_ID_SHORTEN,
5df8a0c6 194 CODEC_ID_ALAC,
034eeaa1 195 CODEC_ID_WESTWOOD_SND1,
115329f1 196 CODEC_ID_GSM,
d9b1c197 197 CODEC_ID_QDM2,
e0f7e329 198 CODEC_ID_COOK,
bf3027c8 199 CODEC_ID_TRUESPEECH,
a24c4a2a 200 CODEC_ID_TTA,
348efc18 201 CODEC_ID_SMACKAUDIO,
115329f1
DB
202
203 CODEC_ID_OGGTHEORA= 0x16000,
240c1657
FB
204
205 /* subtitle codecs */
115329f1
DB
206 CODEC_ID_DVD_SUBTITLE= 0x17000,
207 CODEC_ID_DVB_SUBTITLE,
208
17179d2d 209 CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
985180a1 210 stream (only used by libavformat) */
de6d9b64 211};
dcedf586
FB
212
213/* CODEC_ID_MP3LAME is absolete */
214#define CODEC_ID_MP3LAME CODEC_ID_MP3
de6d9b64
FB
215
216enum CodecType {
4a663d80 217 CODEC_TYPE_UNKNOWN = -1,
de6d9b64
FB
218 CODEC_TYPE_VIDEO,
219 CODEC_TYPE_AUDIO,
985180a1 220 CODEC_TYPE_DATA,
240c1657 221 CODEC_TYPE_SUBTITLE,
de6d9b64
FB
222};
223
a96b68b7 224/* currently unused, may be used if 24/32 bits samples ever supported */
1319a77b 225/* all in native endian */
a96b68b7 226enum SampleFormat {
9076fee4 227 SAMPLE_FMT_NONE = -1,
1319a77b
AB
228 SAMPLE_FMT_U8, ///< unsigned 8 bits
229 SAMPLE_FMT_S16, ///< signed 16 bits
230 SAMPLE_FMT_S24, ///< signed 24 bits
115329f1 231 SAMPLE_FMT_S32, ///< signed 32 bits
a3a5f4d6 232 SAMPLE_FMT_FLT, ///< float
a96b68b7
FB
233};
234
de6d9b64 235/* in bytes */
8170e5fb 236#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
de6d9b64 237
d7425f59 238/**
cf713bb8 239 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
115329f1 240 * this is mainly needed because some optimized bitstream readers read
cf713bb8
MN
241 * 32 or 64 bit at once and could read over the end<br>
242 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
243 * MPEG bitstreams could cause overread and segfault
d7425f59
MN
244 */
245#define FF_INPUT_BUFFER_PADDING_SIZE 8
246
0ecca7a4
MN
247/**
248 * minimum encoding buffer size.
249 * used to avoid some checks during header writing
250 */
251#define FF_MIN_BUFFER_SIZE 16384
252
e4986da9
J
253/* motion estimation type, EPZS by default */
254enum Motion_Est_ID {
101bea5f 255 ME_ZERO = 1,
e4986da9
J
256 ME_FULL,
257 ME_LOG,
258 ME_PHODS,
259 ME_EPZS,
51d6a3cf
MN
260 ME_X1,
261 ME_HEX,
262 ME_UMH,
263 ME_ITER,
e4986da9
J
264};
265
8c3eba7c
MN
266enum AVDiscard{
267//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
268 AVDISCARD_NONE =-16, ///< discard nothing
269 AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
270 AVDISCARD_NONREF = 8, ///< discard all non reference
271 AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
272 AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
273 AVDISCARD_ALL = 48, ///< discard all
274};
275
ce980a95
MN
276typedef struct RcOverride{
277 int start_frame;
278 int end_frame;
279 int qscale; // if this is 0 then quality_factor will be used instead
280 float quality_factor;
281} RcOverride;
282
101bea5f
J
283/* only for ME compatiblity with old apps */
284extern int motion_estimation_method;
285
b0ec9efd 286#define FF_MAX_B_FRAMES 16
9dbcbd92 287
a949d72e 288/* encoding support
115329f1 289 these flags can be passed in AVCodecContext.flags before initing
bb628dae 290 Note: not everything is supported yet.
a949d72e 291*/
de6d9b64 292
115329f1 293#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 294#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
115329f1
DB
295#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
296#define CODEC_FLAG_GMC 0x0020 ///< use GMC
297#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
298#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
299/* parent program gurantees that the input for b-frame containing streams is not written to
9dbcbd92 300 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 301#define CODEC_FLAG_INPUT_PRESERVED 0x0100
115329f1
DB
302#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
303#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
304#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
305#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
bb628dae 306#define CODEC_FLAG_EMU_EDGE 0x4000///< don't draw edges
115329f1
DB
307#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
308#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 309 of only at frame boundaries */
115329f1
DB
310#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
311#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 312#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
115329f1
DB
313#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
314#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
315#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
316#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 317/* Fx : Flag for h263+ extra options */
8d8c0294
MN
318#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
319#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
115329f1 320#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 321#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 322#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 323#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
332f9ac4
MN
324#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
325#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
bb198e19
MN
326#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
327#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 328#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
f2cf4a6b 329#define CODEC_FLAG_CLOSED_GOP ((int)0x80000000)
6fc5b059 330#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
03581772 331#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
09b0499f 332#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
90ad92b3 333#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< place global headers at every keyframe instead of in extradata
58f7833e
RS
334#define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow b-frames to be used as references
335#define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for b-frames
336#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 multiple references per partition
337#define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform
338#define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip
339#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters
340#define CODEC_FLAG2_BRDO 0x00000400 ///< b-frame rate-distortion optimization
307eb248 341#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< use MPEG-2 intra VLC table
086bfd25 342#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< only do ME/MC (I frames -> ref, P frame -> ME+MC)
6fc5b059 343
21e59552 344/* Unsupported options :
bb270c08
DB
345 * Syntax Arithmetic coding (SAC)
346 * Reference Picture Selection
347 * Independant Segment Decoding */
21e59552 348/* /Fx */
bf89e6b1
FB
349/* codec capabilities */
350
115329f1 351#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
6814a25c
MN
352/**
353 * Codec uses get_buffer() for allocating buffers.
354 * direct rendering method 1
355 */
356#define CODEC_CAP_DR1 0x0002
917e06c8
FB
357/* if 'parse_only' field is true, then avcodec_parse_frame() can be
358 used */
359#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 360#define CODEC_CAP_TRUNCATED 0x0008
5e5c247a
IK
361/* codec can export data for HW decoding (XvMC) */
362#define CODEC_CAP_HWACCEL 0x0010
115329f1 363/**
934982c4
MN
364 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
365 * if this is not set, the codec is guranteed to never be feeded with NULL data
366 */
6f824977 367#define CODEC_CAP_DELAY 0x0020
bf89e6b1 368
bb628dae 369//the following defines may change, don't expect compatibility if you use them
8d7ec294
WH
370#define MB_TYPE_INTRA4x4 0x0001
371#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
372#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
373#define MB_TYPE_16x16 0x0008
374#define MB_TYPE_16x8 0x0010
375#define MB_TYPE_8x16 0x0020
376#define MB_TYPE_8x8 0x0040
377#define MB_TYPE_INTERLACED 0x0080
378#define MB_TYPE_DIRECT2 0x0100 //FIXME
379#define MB_TYPE_ACPRED 0x0200
380#define MB_TYPE_GMC 0x0400
381#define MB_TYPE_SKIP 0x0800
382#define MB_TYPE_P0L0 0x1000
383#define MB_TYPE_P1L0 0x2000
384#define MB_TYPE_P0L1 0x4000
385#define MB_TYPE_P1L1 0x8000
386#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
387#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
388#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
389#define MB_TYPE_QUANT 0x00010000
390#define MB_TYPE_CBP 0x00020000
391//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
392
fa384dcc
MN
393/**
394 * Pan Scan area.
395 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
396 */
397typedef struct AVPanScan{
398 /**
399 * id.
400 * - encoding: set by user.
401 * - decoding: set by lavc
402 */
403 int id;
404
405 /**
406 * width and height in 1/16 pel
407 * - encoding: set by user.
408 * - decoding: set by lavc
409 */
410 int width;
411 int height;
412
413 /**
414 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
415 * - encoding: set by user.
416 * - decoding: set by lavc
417 */
418 int16_t position[3][2];
419}AVPanScan;
420
492cd3a9 421#define FF_COMMON_FRAME \
b536d0aa
MN
422 /**\
423 * pointer to the picture planes.\
424 * this might be different from the first allocated byte\
425 * - encoding: \
426 * - decoding: \
427 */\
1e491e29
MN
428 uint8_t *data[4];\
429 int linesize[4];\
430 /**\
32db2b1d 431 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
bb628dae 432 * this isn't used by lavc unless the default get/release_buffer() is used\
64863965
MN
433 * - encoding: \
434 * - decoding: \
1e491e29
MN
435 */\
436 uint8_t *base[4];\
437 /**\
438 * 1 -> keyframe, 0-> not\
64863965
MN
439 * - encoding: set by lavc\
440 * - decoding: set by lavc\
1e491e29
MN
441 */\
442 int key_frame;\
443\
444 /**\
0da71265 445 * picture type of the frame, see ?_TYPE below.\
64863965
MN
446 * - encoding: set by lavc for coded_picture (and set by user for input)\
447 * - decoding: set by lavc\
1e491e29
MN
448 */\
449 int pict_type;\
450\
451 /**\
c0df9d75
MN
452 * presentation timestamp in time_base units (time when frame should be shown to user)\
453 * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
64863965
MN
454 * - encoding: MUST be set by user\
455 * - decoding: set by lavc\
1e491e29 456 */\
be6784dc 457 int64_t pts;\
1e491e29
MN
458\
459 /**\
460 * picture number in bitstream order.\
64863965
MN
461 * - encoding: set by\
462 * - decoding: set by lavc\
1e491e29
MN
463 */\
464 int coded_picture_number;\
465 /**\
1e491e29 466 * picture number in display order.\
64863965
MN
467 * - encoding: set by\
468 * - decoding: set by lavc\
1e491e29
MN
469 */\
470 int display_picture_number;\
471\
472 /**\
158c7f05 473 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
64863965
MN
474 * - encoding: set by lavc for coded_picture (and set by user for input)\
475 * - decoding: set by lavc\
1e491e29 476 */\
158c7f05 477 int quality; \
1e491e29
MN
478\
479 /**\
480 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 481 * set to INT_MAX if the buffer has not been used yet \
64863965
MN
482 * - encoding: unused\
483 * - decoding: MUST be set by get_buffer()\
1e491e29
MN
484 */\
485 int age;\
486\
487 /**\
488 * is this picture used as reference\
64863965
MN
489 * - encoding: unused\
490 * - decoding: set by lavc (before get_buffer() call))\
1e491e29
MN
491 */\
492 int reference;\
493\
494 /**\
495 * QP table\
64863965
MN
496 * - encoding: unused\
497 * - decoding: set by lavc\
1e491e29
MN
498 */\
499 int8_t *qscale_table;\
500 /**\
501 * QP store stride\
64863965
MN
502 * - encoding: unused\
503 * - decoding: set by lavc\
1e491e29
MN
504 */\
505 int qstride;\
506\
507 /**\
508 * mbskip_table[mb]>=1 if MB didnt change\
509 * stride= mb_width = (width+15)>>4\
64863965
MN
510 * - encoding: unused\
511 * - decoding: set by lavc\
1e491e29
MN
512 */\
513 uint8_t *mbskip_table;\
514\
515 /**\
61436073
MN
516 * Motion vector table.\
517 * @code\
518 * example:\
519 * int mv_sample_log2= 4 - motion_subsample_log2;\
520 * int mb_width= (width+15)>>4;\
521 * int mv_stride= (mb_width << mv_sample_log2) + 1;\
522 * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
523 * @endcode\
a4d36c11 524 * - encoding: set by user\
8d7ec294
WH
525 * - decoding: set by lavc\
526 */\
527 int16_t (*motion_val[2])[2];\
528\
529 /**\
530 * Macroblock type table\
531 * mb_type_base + mb_width + 2\
a4d36c11 532 * - encoding: set by user\
8d7ec294
WH
533 * - decoding: set by lavc\
534 */\
535 uint32_t *mb_type;\
536\
537 /**\
f0b77c69
MN
538 * log2 of the size of the block which a single vector in motion_val represents: \
539 * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
8d7ec294
WH
540 * - encoding: unused\
541 * - decoding: set by lavc\
542 */\
543 uint8_t motion_subsample_log2;\
544\
545 /**\
1e491e29 546 * for some private data of the user\
64863965
MN
547 * - encoding: unused\
548 * - decoding: set by user\
1e491e29
MN
549 */\
550 void *opaque;\
140cb663
MN
551\
552 /**\
553 * error\
64863965
MN
554 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
555 * - decoding: unused\
140cb663
MN
556 */\
557 uint64_t error[4];\
4e00e76b
MN
558\
559 /**\
560 * type of the buffer (to keep track of who has to dealloc data[*])\
64863965
MN
561 * - encoding: set by the one who allocs it\
562 * - decoding: set by the one who allocs it\
3db320ea 563 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
4e00e76b
MN
564 */\
565 int type;\
2ec23b6d
MN
566 \
567 /**\
568 * when decoding, this signal how much the picture must be delayed.\
569 * extra_delay = repeat_pict / (2*fps)\
64863965
MN
570 * - encoding: unused\
571 * - decoding: set by lavc\
2ec23b6d 572 */\
0426af31
MN
573 int repeat_pict;\
574 \
575 /**\
576 * \
577 */\
578 int qscale_type;\
2744ca9a
RS
579 \
580 /**\
581 * The content of the picture is interlaced.\
582 * - encoding: set by user\
583 * - decoding: set by lavc (default 0)\
584 */\
585 int interlaced_frame;\
586 \
587 /**\
9dad924e 588 * if the content is interlaced, is top field displayed first.\
2744ca9a 589 * - encoding: set by user\
9dad924e 590 * - decoding: set by lavc\
2744ca9a 591 */\
9dad924e 592 int top_field_first;\
fa384dcc
MN
593 \
594 /**\
595 * Pan scan.\
596 * - encoding: set by user\
597 * - decoding: set by lavc\
598 */\
599 AVPanScan *pan_scan;\
2a2bbcb0
MM
600 \
601 /**\
602 * tell user application that palette has changed from previous frame.\
603 * - encoding: ??? (no palette-enabled encoder yet)\
604 * - decoding: set by lavc (default 0)\
605 */\
606 int palette_has_changed;\
074c4ca7
RT
607 \
608 /**\
609 * Codec suggestion on buffer type if != 0\
610 * - encoding: unused\
611 * - decoding: set by lavc (before get_buffer() call))\
612 */\
613 int buffer_hints;\
8289c6fa
WH
614\
615 /**\
616 * DCT coeffitients\
617 * - encoding: unused\
618 * - decoding: set by lavc\
619 */\
620 short *dct_coeff;\
a4d36c11
MN
621\
622 /**\
623 * Motion referece frame index\
624 * - encoding: set by user\
625 * - decoding: set by lavc\
626 */\
627 int8_t *ref_index[2];
2ec23b6d 628
bb270c08
DB
629#define FF_QSCALE_TYPE_MPEG1 0
630#define FF_QSCALE_TYPE_MPEG2 1
631#define FF_QSCALE_TYPE_H264 2
4e00e76b
MN
632
633#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 634#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
bb628dae
DB
635#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
636#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, don't dealloc anything
4e00e76b 637
1e491e29 638
140cb663
MN
639#define FF_I_TYPE 1 // Intra
640#define FF_P_TYPE 2 // Predicted
641#define FF_B_TYPE 3 // Bi-dir predicted
642#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
0da71265
MN
643#define FF_SI_TYPE 5
644#define FF_SP_TYPE 6
1e491e29 645
074c4ca7
RT
646#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
647#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
648#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
649#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
650
0da71265
MN
651/**
652 * Audio Video Frame.
653 */
492cd3a9
MN
654typedef struct AVFrame {
655 FF_COMMON_FRAME
656} AVFrame;
1e491e29 657
14bea432 658#define DEFAULT_FRAME_RATE_BASE 1001000
d33c949c
MN
659
660/**
bc874dae
MB
661 * Used by av_log
662 */
663typedef struct AVCLASS AVClass;
664struct AVCLASS {
665 const char* class_name;
666 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
bb270c08
DB
667 or AVFormatContext, which begin with an AVClass.
668 Needed because av_log is in libavcodec and has no visibility
669 of AVIn/OutputFormat */
6fd46414 670 struct AVOption *option;
bc874dae
MB
671};
672
673/**
d33c949c
MN
674 * main external api structure.
675 */
de6d9b64 676typedef struct AVCodecContext {
b71901e6 677 /**
bc874dae
MB
678 * Info on struct for av_log
679 * - set by avcodec_alloc_context
680 */
43465395 681 AVClass *av_class;
bc874dae 682 /**
64863965
MN
683 * the average bitrate.
684 * - encoding: set by user. unused for constant quantizer encoding
115329f1 685 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 686 */
de6d9b64 687 int bit_rate;
b71901e6
MN
688
689 /**
64863965 690 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 691 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
64863965
MN
692 * - encoding: set by user. unused for constant quantizer encoding
693 * - decoding: unused
b71901e6 694 */
115329f1 695 int bit_rate_tolerance;
b71901e6
MN
696
697 /**
64863965
MN
698 * CODEC_FLAG_*.
699 * - encoding: set by user.
700 * - decoding: set by user.
b71901e6 701 */
de6d9b64 702 int flags;
b71901e6
MN
703
704 /**
705 * some codecs needs additionnal format info. It is stored here
115329f1 706 * - encoding: set by user.
64863965 707 * - decoding: set by lavc. (FIXME is this ok?)
b71901e6
MN
708 */
709 int sub_id;
710
711 /**
64863965 712 * motion estimation algorithm used for video coding.
58f7833e
RS
713 * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
714 * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
64863965
MN
715 * - encoding: MUST be set by user.
716 * - decoding: unused
b71901e6
MN
717 */
718 int me_method;
719
720 /**
64863965 721 * some codecs need / can use extra-data like huffman tables.
b71901e6
MN
722 * mjpeg: huffman tables
723 * rv10: additional flags
b704e742 724 * mpeg4: global headers (they can be in the bitstream or here)
dffcdbb5
MN
725 * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
726 * then extradata_size to avoid prolems if its read with the bitstream reader
ed57bb79 727 * the bytewise contents of extradata must not depend on the architecture or cpu endianness
64863965
MN
728 * - encoding: set/allocated/freed by lavc.
729 * - decoding: set/allocated/freed by user.
b71901e6 730 */
e84c31dc
A
731 void *extradata;
732 int extradata_size;
115329f1 733
b71901e6 734 /**
5b28c8c3
MN
735 * this is the fundamental unit of time (in seconds) in terms
736 * of which frame timestamps are represented. for fixed-fps content,
737 * timebase should be 1/framerate and timestamp increments should be
738 * identically 1.
64863965 739 * - encoding: MUST be set by user
c0df9d75 740 * - decoding: set by lavc.
b71901e6 741 */
c0df9d75 742 AVRational time_base;
115329f1 743
5b28c8c3 744 /* video only */
14bea432 745 /**
21adafec 746 * picture width / height.
115329f1 747 * - encoding: MUST be set by user.
21adafec 748 * - decoding: set by lavc.
115329f1 749 * Note, for compatibility its possible to set this instead of
21adafec 750 * coded_width/height before decoding
b71901e6 751 */
de6d9b64 752 int width, height;
115329f1 753
e769f053 754#define FF_ASPECT_EXTENDED 15
b71901e6
MN
755
756 /**
64863965
MN
757 * the number of pictures in a group of pitures, or 0 for intra_only.
758 * - encoding: set by user.
759 * - decoding: unused
b71901e6
MN
760 */
761 int gop_size;
762
763 /**
64863965 764 * pixel format, see PIX_FMT_xxx.
a3a5f4d6 765 * - encoding: set by user.
64863965 766 * - decoding: set by lavc.
b71901e6 767 */
e4eadb4b 768 enum PixelFormat pix_fmt;
115329f1 769
bdfcbbed 770 /**
115329f1 771 * Frame rate emulation. If not zero lower layer (i.e. format handler)
bdfcbbed
MK
772 * has to read frames at native frame rate.
773 * - encoding: set by user.
774 * - decoding: unused.
775 */
776 int rate_emu;
115329f1 777
b71901e6
MN
778 /**
779 * if non NULL, 'draw_horiz_band' is called by the libavcodec
780 * decoder to draw an horizontal band. It improve cache usage. Not
781 * all codecs can do that. You must check the codec capabilities
782 * before
64863965
MN
783 * - encoding: unused
784 * - decoding: set by user.
3bb07d61
MN
785 * @param height the height of the slice
786 * @param y the y position of the slice
787 * @param type 1->top field, 2->bottom field, 3->frame
788 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 789 */
bf89e6b1 790 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 791 const AVFrame *src, int offset[4],
3bb07d61 792 int y, int type, int height);
bf89e6b1 793
de6d9b64 794 /* audio only */
115329f1 795 int sample_rate; ///< samples per sec
de6d9b64 796 int channels;
a3a5f4d6
MN
797
798 /**
799 * audio sample format.
800 * - encoding: set by user.
801 * - decoding: set by lavc.
802 */
115329f1 803 enum SampleFormat sample_fmt; ///< sample format, currenly unused
de6d9b64
FB
804
805 /* the following data should not be initialized */
718b27a7 806 /**
115329f1 807 * samples per packet. initialized when calling 'init'
718b27a7
MN
808 */
809 int frame_size;
115329f1
DB
810 int frame_number; ///< audio or video frame number
811 int real_pict_num; ///< returns the real picture number of previous encoded frame
812
b71901e6 813 /**
115329f1 814 * number of frames the decoded output will be delayed relative to
64863965
MN
815 * the encoded input.
816 * - encoding: set by lavc.
817 * - decoding: unused
b71901e6
MN
818 */
819 int delay;
115329f1 820
64863965
MN
821 /* - encoding parameters */
822 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
115329f1
DB
823 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
824
b71901e6 825 /**
64863965
MN
826 * minimum quantizer.
827 * - encoding: set by user.
828 * - decoding: unused
b71901e6
MN
829 */
830 int qmin;
831
832 /**
64863965
MN
833 * maximum quantizer.
834 * - encoding: set by user.
835 * - decoding: unused
b71901e6
MN
836 */
837 int qmax;
838
839 /**
64863965
MN
840 * maximum quantizer difference etween frames.
841 * - encoding: set by user.
842 * - decoding: unused
b71901e6
MN
843 */
844 int max_qdiff;
845
846 /**
64863965 847 * maximum number of b frames between non b frames.
b71901e6 848 * note: the output will be delayed by max_b_frames+1 relative to the input
64863965
MN
849 * - encoding: set by user.
850 * - decoding: unused
b71901e6
MN
851 */
852 int max_b_frames;
853
854 /**
64863965
MN
855 * qscale factor between ip and b frames.
856 * - encoding: set by user.
857 * - decoding: unused
b71901e6
MN
858 */
859 float b_quant_factor;
115329f1 860
b71901e6
MN
861 /** obsolete FIXME remove */
862 int rc_strategy;
64b7c5b6
MN
863#define FF_RC_STRATEGY_XVID 1
864
8b4c7dbc 865 int b_frame_strategy;
9dbcbd92 866
b71901e6 867 /**
64863965 868 * hurry up amount.
8c3eba7c 869 * deprecated in favor of skip_idct and skip_frame
64863965
MN
870 * - encoding: unused
871 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
b71901e6
MN
872 */
873 int hurry_up;
115329f1 874
de6d9b64 875 struct AVCodec *codec;
115329f1 876
de6d9b64
FB
877 void *priv_data;
878
ba58dabc
MN
879 /* unused, FIXME remove*/
880 int rtp_mode;
115329f1 881
bb628dae 882 int rtp_payload_size; /* The size of the RTP payload: the coder will */
644d98a4
J
883 /* do it's best to deliver a chunk with size */
884 /* below rtp_payload_size, the chunk will start */
885 /* with a start code on some codecs like H.263 */
886 /* This doesn't take account of any particular */
887 /* headers inside the transmited RTP payload */
81401c1f 888
115329f1 889
bb628dae
DB
890 /* The RTP callback: This function is called */
891 /* every time the encoder has a packet to send */
892 /* Depends on the encoder if the data starts */
893 /* with a Start Code (it should) H.263 does. */
894 /* mb_nb contains the number of macroblocks */
895 /* encoded in the RTP payload */
115329f1 896 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
81401c1f 897
098eefe1
MN
898 /* statistics, used for 2-pass encoding */
899 int mv_bits;
900 int header_bits;
901 int i_tex_bits;
902 int p_tex_bits;
903 int i_count;
904 int p_count;
905 int skip_count;
b71901e6 906 int misc_bits;
115329f1 907
b71901e6 908 /**
64863965
MN
909 * number of bits used for the previously encoded frame.
910 * - encoding: set by lavc
7004ffb3 911 * - decoding: unused
b71901e6 912 */
098eefe1 913 int frame_bits;
7004ffb3 914
b71901e6 915 /**
64863965
MN
916 * private data of the user, can be used to carry app specific stuff.
917 * - encoding: set by user
918 * - decoding: set by user
b71901e6
MN
919 */
920 void *opaque;
921
de6d9b64 922 char codec_name[32];
4a663d80
PG
923 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
924 enum CodecID codec_id; /* see CODEC_ID_xxx */
115329f1 925
7004ffb3
MN
926 /**
927 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
928 * this is used to workaround some encoder bugs
bd5a6020 929 * - encoding: set by user, if not then the default based on codec_id will be used
7004ffb3
MN
930 * - decoding: set by user, will be converted to upper case by lavc during init
931 */
932 unsigned int codec_tag;
115329f1 933
b71901e6 934 /**
64863965 935 * workaround bugs in encoders which sometimes cannot be detected automatically.
59fa3f96 936 * - encoding: set by user
64863965 937 * - decoding: set by user
b71901e6
MN
938 */
939 int workaround_bugs;
64863965 940#define FF_BUG_AUTODETECT 1 ///< autodetection
4d2858de
MN
941#define FF_BUG_OLD_MSMPEG4 2
942#define FF_BUG_XVID_ILACE 4
943#define FF_BUG_UMP4 8
944#define FF_BUG_NO_PADDING 16
3116cb14 945#define FF_BUG_AMV 32
ac0c6638 946#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 947#define FF_BUG_QPEL_CHROMA 64
db794953 948#define FF_BUG_STD_QPEL 128
36df8805 949#define FF_BUG_QPEL_CHROMA2 256
c40c3482 950#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 951#define FF_BUG_EDGE 1024
b44bdf7e 952#define FF_BUG_HPEL_CHROMA 2048
4ccde216 953#define FF_BUG_DC_CLIP 4096
59fa3f96 954#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
4d2858de 955//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
115329f1 956
b71901e6 957 /**
64863965
MN
958 * luma single coeff elimination threshold.
959 * - encoding: set by user
960 * - decoding: unused
b71901e6 961 */
1f6b6e50 962 int luma_elim_threshold;
115329f1 963
b71901e6 964 /**
64863965
MN
965 * chroma single coeff elimination threshold.
966 * - encoding: set by user
967 * - decoding: unused
b71901e6 968 */
1f6b6e50 969 int chroma_elim_threshold;
115329f1 970
b71901e6 971 /**
64863965
MN
972 * strictly follow the std (MPEG4, ...).
973 * - encoding: set by user
974 * - decoding: unused
b71901e6
MN
975 */
976 int strict_std_compliance;
9cd81798
MN
977#define FF_COMPLIANCE_VERY_STRICT 2 ///< strictly conform to a older more strict version of the spec or reference software
978#define FF_COMPLIANCE_STRICT 1 ///< strictly conform to all the things in the spec no matter what consequences
979#define FF_COMPLIANCE_NORMAL 0
980#define FF_COMPLIANCE_INOFFICIAL -1 ///< allow inofficial extensions
981#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
982
b71901e6 983 /**
64863965 984 * qscale offset between ip and b frames.
b3a391e8
MN
985 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
986 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
987 * - encoding: set by user.
988 * - decoding: unused
b71901e6
MN
989 */
990 float b_quant_offset;
115329f1 991
b71901e6 992 /**
ce3bcaed 993 * error resilience higher values will detect more errors but may missdetect
64863965
MN
994 * some more or less valid parts as errors.
995 * - encoding: unused
996 * - decoding: set by user
b71901e6 997 */
1f6b6e50 998 int error_resilience;
1471c6c2 999#define FF_ER_CAREFUL 1
ce3bcaed
MN
1000#define FF_ER_COMPLIANT 2
1001#define FF_ER_AGGRESSIVE 3
1002#define FF_ER_VERY_AGGRESSIVE 4
115329f1 1003
6b72ac63 1004 /**
1e491e29
MN
1005 * called at the beginning of each frame to get a buffer for it.
1006 * if pic.reference is set then the frame will be read later by lavc
2b5296d2
MN
1007 * avcodec_align_dimensions() should be used to find the required width and
1008 * height, as they normally need to be rounded up to the next multiple of 16
64863965
MN
1009 * - encoding: unused
1010 * - decoding: set by lavc, user can override
b71901e6 1011 */
492cd3a9 1012 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
115329f1 1013
b71901e6 1014 /**
1e491e29
MN
1015 * called to release buffers which where allocated with get_buffer.
1016 * a released buffer can be reused in get_buffer()
1017 * pic.data[*] must be set to NULL
64863965
MN
1018 * - encoding: unused
1019 * - decoding: set by lavc, user can override
b71901e6 1020 */
492cd3a9 1021 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 1022
b71901e6 1023 /**
e6a2ac34
MN
1024 * if 1 the stream has a 1 frame delay during decoding.
1025 * - encoding: set by lavc
64863965 1026 * - decoding: set by lavc
b71901e6
MN
1027 */
1028 int has_b_frames;
718b27a7
MN
1029
1030 /**
1031 * number of bytes per packet if constant and known or 0
1032 * used by some WAV based audio codecs
1033 */
1034 int block_align;
115329f1 1035
64863965 1036 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
1037 (function avcodec_parse_frame()). The frame
1038 data is returned. Only MPEG codecs support this now. */
115329f1 1039
b71901e6 1040 /**
e4eadb4b 1041 * 0-> h263 quant 1-> mpeg quant.
64863965
MN
1042 * - encoding: set by user.
1043 * - decoding: unused
b71901e6
MN
1044 */
1045 int mpeg_quant;
115329f1 1046
b71901e6 1047 /**
64863965
MN
1048 * pass1 encoding statistics output buffer.
1049 * - encoding: set by lavc
1050 * - decoding: unused
b71901e6 1051 */
64863965 1052 char *stats_out;
115329f1 1053
b71901e6
MN
1054 /**
1055 * pass2 encoding statistics input buffer.
1056 * concatenated stuff from stats_out of pass1 should be placed here
64863965
MN
1057 * - encoding: allocated/set/freed by user
1058 * - decoding: unused
b71901e6
MN
1059 */
1060 char *stats_in;
115329f1 1061
b71901e6 1062 /**
64863965 1063 * ratecontrol qmin qmax limiting method.
b71901e6 1064 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
MN
1065 * - encoding: set by user.
1066 * - decoding: unused
b71901e6 1067 */
ce980a95 1068 float rc_qsquish;
b71901e6 1069
ce980a95
MN
1070 float rc_qmod_amp;
1071 int rc_qmod_freq;
115329f1 1072
b71901e6 1073 /**
64863965
MN
1074 * ratecontrol override, see RcOverride.
1075 * - encoding: allocated/set/freed by user.
1076 * - decoding: unused
b71901e6 1077 */
ce980a95
MN
1078 RcOverride *rc_override;
1079 int rc_override_count;
115329f1 1080
b71901e6 1081 /**
64863965
MN
1082 * rate control equation.
1083 * - encoding: set by user
1084 * - decoding: unused
b71901e6 1085 */
ce980a95 1086 char *rc_eq;
115329f1 1087
b71901e6 1088 /**
64863965
MN
1089 * maximum bitrate.
1090 * - encoding: set by user.
1091 * - decoding: unused
b71901e6 1092 */
ce980a95 1093 int rc_max_rate;
115329f1 1094
b71901e6 1095 /**
64863965
MN
1096 * minimum bitrate.
1097 * - encoding: set by user.
1098 * - decoding: unused
b71901e6 1099 */
ce980a95 1100 int rc_min_rate;
115329f1 1101
b71901e6 1102 /**
64863965
MN
1103 * decoder bitstream buffer size.
1104 * - encoding: set by user.
1105 * - decoding: unused
b71901e6 1106 */
ce980a95
MN
1107 int rc_buffer_size;
1108 float rc_buffer_aggressivity;
b71901e6
MN
1109
1110 /**
64863965 1111 * qscale factor between p and i frames.
a1e257b2
MN
1112 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1113 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
1114 * - encoding: set by user.
1115 * - decoding: unused
b71901e6
MN
1116 */
1117 float i_quant_factor;
115329f1 1118
b71901e6 1119 /**
64863965 1120 * qscale offset between p and i frames.
64863965
MN
1121 * - encoding: set by user.
1122 * - decoding: unused
b71901e6
MN
1123 */
1124 float i_quant_offset;
115329f1 1125
b71901e6 1126 /**
64863965
MN
1127 * initial complexity for pass1 ratecontrol.
1128 * - encoding: set by user.
1129 * - decoding: unused
b71901e6 1130 */
ce980a95 1131 float rc_initial_cplx;
917e06c8 1132
b71901e6 1133 /**
64863965
MN
1134 * dct algorithm, see FF_DCT_* below.
1135 * - encoding: set by user
1136 * - decoding: unused
b71901e6 1137 */
28db7fce 1138 int dct_algo;
c7e07931 1139#define FF_DCT_AUTO 0
28db7fce 1140#define FF_DCT_FASTINT 1
c7e07931
MO
1141#define FF_DCT_INT 2
1142#define FF_DCT_MMX 3
1143#define FF_DCT_MLIB 4
05c4072b 1144#define FF_DCT_ALTIVEC 5
65e4c8c9 1145#define FF_DCT_FAAN 6
115329f1 1146
c5d309f2 1147 /**
64863965
MN
1148 * luminance masking (0-> disabled).
1149 * - encoding: set by user
1150 * - decoding: unused
c5d309f2
MN
1151 */
1152 float lumi_masking;
115329f1 1153
c5d309f2 1154 /**
64863965
MN
1155 * temporary complexity masking (0-> disabled).
1156 * - encoding: set by user
1157 * - decoding: unused
c5d309f2
MN
1158 */
1159 float temporal_cplx_masking;
115329f1 1160
c5d309f2 1161 /**
64863965
MN
1162 * spatial complexity masking (0-> disabled).
1163 * - encoding: set by user
1164 * - decoding: unused
c5d309f2
MN
1165 */
1166 float spatial_cplx_masking;
115329f1 1167
c5d309f2 1168 /**
64863965
MN
1169 * p block masking (0-> disabled).
1170 * - encoding: set by user
1171 * - decoding: unused
c5d309f2
MN
1172 */
1173 float p_masking;
15415af4 1174
5e746b99 1175 /**
64863965
MN
1176 * darkness masking (0-> disabled).
1177 * - encoding: set by user
1178 * - decoding: unused
5e746b99
MN
1179 */
1180 float dark_masking;
115329f1
DB
1181
1182
3a694b04
NK
1183 /* for binary compatibility */
1184 int unused;
115329f1 1185
0c2dd16e 1186 /**
64863965
MN
1187 * idct algorithm, see FF_IDCT_* below.
1188 * - encoding: set by user
1189 * - decoding: set by user
2ad1516a
MN
1190 */
1191 int idct_algo;
1192#define FF_IDCT_AUTO 0
1193#define FF_IDCT_INT 1
1194#define FF_IDCT_SIMPLE 2
1195#define FF_IDCT_SIMPLEMMX 3
1196#define FF_IDCT_LIBMPEG2MMX 4
1197#define FF_IDCT_PS2 5
1198#define FF_IDCT_MLIB 6
1199#define FF_IDCT_ARM 7
05c4072b 1200#define FF_IDCT_ALTIVEC 8
b82cdc72 1201#define FF_IDCT_SH4 9
bd7d1ea7 1202#define FF_IDCT_SIMPLEARM 10
0fa8158d 1203#define FF_IDCT_H264 11
8b6103da 1204#define FF_IDCT_VP3 12
eba9ae3c 1205#define FF_IDCT_IPP 13
84740d59 1206#define FF_IDCT_XVIDMMX 14
2ad1516a 1207
144f0625 1208 /**
64863965
MN
1209 * slice count.
1210 * - encoding: set by lavc
1211 * - decoding: set by user (or 0)
144f0625
MN
1212 */
1213 int slice_count;
1214 /**
64863965
MN
1215 * slice offsets in the frame in bytes.
1216 * - encoding: set/allocated by lavc
1217 * - decoding: set/allocated by user (or NULL)
144f0625
MN
1218 */
1219 int *slice_offset;
1220
4d2858de 1221 /**
64863965
MN
1222 * error concealment flags.
1223 * - encoding: unused
1224 * - decoding: set by user
4d2858de
MN
1225 */
1226 int error_concealment;
1227#define FF_EC_GUESS_MVS 1
1228#define FF_EC_DEBLOCK 2
1229
6b72ac63 1230 /**
bec89a84 1231 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1232 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1233 *
1234 * with FORCE flag you may instead enable given CPU features
1235 * (Dangerous: usable in case of misdetection, improper usage however will
1236 * result into program crash)
1237 */
1238 unsigned dsp_mask;
bb270c08 1239#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
bec89a84
ZK
1240 /* lower 16 bits - CPU features */
1241#ifdef HAVE_MMX
bb270c08
DB
1242#define FF_MM_MMX 0x0001 /* standard MMX */
1243#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1244#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1245#define FF_MM_SSE 0x0008 /* SSE functions */
1246#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
1247#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
bec89a84 1248#endif /* HAVE_MMX */
eba9ae3c 1249#ifdef HAVE_IWMMXT
bb270c08 1250#define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */
eba9ae3c 1251#endif /* HAVE_IWMMXT */
11f18faf
MN
1252
1253 /**
64863965
MN
1254 * bits per sample/pixel from the demuxer (needed for huffyuv).
1255 * - encoding: set by lavc
1256 * - decoding: set by user
11f18faf
MN
1257 */
1258 int bits_per_sample;
115329f1 1259
11f18faf 1260 /**
64863965
MN
1261 * prediction method (needed for huffyuv).
1262 * - encoding: set by user
1263 * - decoding: unused
11f18faf
MN
1264 */
1265 int prediction_method;
1266#define FF_PRED_LEFT 0
1267#define FF_PRED_PLANE 1
1268#define FF_PRED_MEDIAN 2
115329f1 1269
5d3cea3a 1270 /**
5ff85f1d 1271 * sample aspect ratio (0 if unknown).
1f26c6f3 1272 * numerator and denominator must be relative prime and smaller then 256 for some video standards
64863965
MN
1273 * - encoding: set by user.
1274 * - decoding: set by lavc.
5d3cea3a 1275 */
5ff85f1d 1276 AVRational sample_aspect_ratio;
1e491e29
MN
1277
1278 /**
64863965
MN
1279 * the picture in the bitstream.
1280 * - encoding: set by lavc
1281 * - decoding: set by lavc
1e491e29 1282 */
492cd3a9 1283 AVFrame *coded_frame;
c8c437bc
MN
1284
1285 /**
64863965
MN
1286 * debug.
1287 * - encoding: set by user.
1288 * - decoding: set by user.
c8c437bc
MN
1289 */
1290 int debug;
1291#define FF_DEBUG_PICT_INFO 1
1292#define FF_DEBUG_RC 2
1293#define FF_DEBUG_BITSTREAM 4
1294#define FF_DEBUG_MB_TYPE 8
1295#define FF_DEBUG_QP 16
1296#define FF_DEBUG_MV 32
8289c6fa 1297#define FF_DEBUG_DCT_COEFF 0x00000040
41773b73
MN
1298#define FF_DEBUG_SKIP 0x00000080
1299#define FF_DEBUG_STARTCODE 0x00000100
1300#define FF_DEBUG_PTS 0x00000200
46b4feec 1301#define FF_DEBUG_ER 0x00000400
0da71265 1302#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1303#define FF_DEBUG_BUGS 0x00001000
864119b6
MN
1304#define FF_DEBUG_VIS_QP 0x00002000
1305#define FF_DEBUG_VIS_MB_TYPE 0x00004000
115329f1 1306
140cb663 1307 /**
0c9bbaec
WH
1308 * debug.
1309 * - encoding: set by user.
1310 * - decoding: set by user.
1311 */
1312 int debug_mv;
1313#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1314#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1315#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1316
1317 /**
64863965
MN
1318 * error.
1319 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1320 * - decoding: unused
140cb663
MN
1321 */
1322 uint64_t error[4];
115329f1 1323
17a70fde 1324 /**
64863965 1325 * minimum MB quantizer.
6e0d8c06 1326 * - encoding: unused
64863965 1327 * - decoding: unused
17a70fde
MN
1328 */
1329 int mb_qmin;
1330
1331 /**
64863965 1332 * maximum MB quantizer.
6e0d8c06 1333 * - encoding: unused
64863965 1334 * - decoding: unused
17a70fde
MN
1335 */
1336 int mb_qmax;
115329f1 1337
1457ab52 1338 /**
64863965
MN
1339 * motion estimation compare function.
1340 * - encoding: set by user.
1341 * - decoding: unused
1457ab52
MN
1342 */
1343 int me_cmp;
1344 /**
64863965
MN
1345 * subpixel motion estimation compare function.
1346 * - encoding: set by user.
1347 * - decoding: unused
1457ab52
MN
1348 */
1349 int me_sub_cmp;
1350 /**
64863965
MN
1351 * macroblock compare function (not supported yet).
1352 * - encoding: set by user.
1353 * - decoding: unused
1457ab52
MN
1354 */
1355 int mb_cmp;
622348f9
MN
1356 /**
1357 * interlaced dct compare function
1358 * - encoding: set by user.
1359 * - decoding: unused
1360 */
1361 int ildct_cmp;
1457ab52
MN
1362#define FF_CMP_SAD 0
1363#define FF_CMP_SSE 1
1364#define FF_CMP_SATD 2
1365#define FF_CMP_DCT 3
1366#define FF_CMP_PSNR 4
1367#define FF_CMP_BIT 5
1368#define FF_CMP_RD 6
1369#define FF_CMP_ZERO 7
622348f9
MN
1370#define FF_CMP_VSAD 8
1371#define FF_CMP_VSSE 9
e6a2ac34 1372#define FF_CMP_NSSE 10
26efc54e
MN
1373#define FF_CMP_W53 11
1374#define FF_CMP_W97 12
0fd6aea1 1375#define FF_CMP_DCTMAX 13
27c61ac5 1376#define FF_CMP_DCT264 14
1457ab52 1377#define FF_CMP_CHROMA 256
115329f1 1378
1457ab52 1379 /**
64863965
MN
1380 * ME diamond size & shape.
1381 * - encoding: set by user.
1382 * - decoding: unused
1457ab52
MN
1383 */
1384 int dia_size;
b07a5980
MN
1385
1386 /**
64863965
MN
1387 * amount of previous MV predictors (2a+1 x 2a+1 square).
1388 * - encoding: set by user.
1389 * - decoding: unused
b07a5980
MN
1390 */
1391 int last_predictor_count;
70ac76c0 1392
f5fb6b34 1393 /**
64863965
MN
1394 * pre pass for motion estimation.
1395 * - encoding: set by user.
1396 * - decoding: unused
f5fb6b34
MN
1397 */
1398 int pre_me;
b07a5980 1399
70ac76c0 1400 /**
64863965
MN
1401 * motion estimation pre pass compare function.
1402 * - encoding: set by user.
1403 * - decoding: unused
70ac76c0
MN
1404 */
1405 int me_pre_cmp;
826f429a 1406
70ac76c0 1407 /**
64863965
MN
1408 * ME pre pass diamond size & shape.
1409 * - encoding: set by user.
1410 * - decoding: unused
70ac76c0
MN
1411 */
1412 int pre_dia_size;
1413
826f429a 1414 /**
64863965
MN
1415 * subpel ME quality.
1416 * - encoding: set by user.
1417 * - decoding: unused
826f429a
MN
1418 */
1419 int me_subpel_quality;
1420
a33c7159 1421 /**
64863965 1422 * callback to negotiate the pixelFormat.
a33c7159
MN
1423 * @param fmt is the list of formats which are supported by the codec,
1424 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1425 * the first is allways the native one
1426 * @return the choosen format
64863965
MN
1427 * - encoding: unused
1428 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1429 */
494c56d3 1430 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
e2f9490e
FB
1431
1432 /**
1433 * DTG active format information (additionnal aspect ratio
1434 * information only used in DVB MPEG2 transport streams). 0 if
1435 * not set.
115329f1 1436 *
64863965 1437 * - encoding: unused.
115329f1 1438 * - decoding: set by decoder
e2f9490e
FB
1439 */
1440 int dtg_active_format;
1441#define FF_DTG_AFD_SAME 8
1442#define FF_DTG_AFD_4_3 9
1443#define FF_DTG_AFD_16_9 10
1444#define FF_DTG_AFD_14_9 11
1445#define FF_DTG_AFD_4_3_SP_14_9 13
1446#define FF_DTG_AFD_16_9_SP_14_9 14
1447#define FF_DTG_AFD_SP_4_3 15
1448
ebbcdc9a
MN
1449 /**
1450 * Maximum motion estimation search range in subpel units.
1451 * if 0 then no limit
115329f1 1452 *
64863965
MN
1453 * - encoding: set by user.
1454 * - decoding: unused.
ebbcdc9a 1455 */
59e0ac8e 1456 int me_range;
ebbcdc9a 1457
65f7062d 1458 /**
1984f635
MN
1459 * intra quantizer bias.
1460 * - encoding: set by user.
1461 * - decoding: unused
1462 */
1463 int intra_quant_bias;
1464#define FF_DEFAULT_QUANT_BIAS 999999
115329f1 1465
1984f635
MN
1466 /**
1467 * inter quantizer bias.
1468 * - encoding: set by user.
1469 * - decoding: unused
1470 */
1471 int inter_quant_bias;
5cd62665
ZK
1472
1473 /**
1474 * color table ID.
1475 * - encoding: unused.
1476 * - decoding: which clrtable should be used for 8bit RGB images
1477 * table have to be stored somewhere FIXME
1478 */
1479 int color_table_id;
115329f1 1480
d90cf87b 1481 /**
115329f1 1482 * internal_buffer count.
bb628dae 1483 * Don't touch, used by lavc default_get_buffer()
d90cf87b
MN
1484 */
1485 int internal_buffer_count;
115329f1 1486
d90cf87b 1487 /**
115329f1 1488 * internal_buffers.
bb628dae 1489 * Don't touch, used by lavc default_get_buffer()
d90cf87b
MN
1490 */
1491 void *internal_buffer;
158c7f05
MN
1492
1493#define FF_LAMBDA_SHIFT 7
1494#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1495#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1496#define FF_LAMBDA_MAX (256*128-1)
1497
1498#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
MN
1499 /**
1500 * global quality for codecs which cannot change it per frame.
1501 * this should be proportional to MPEG1/2/4 qscale.
1502 * - encoding: set by user.
1503 * - decoding: unused
1504 */
1505 int global_quality;
115329f1 1506
11e659c2
MN
1507#define FF_CODER_TYPE_VLC 0
1508#define FF_CODER_TYPE_AC 1
1509 /**
1510 * coder type
1511 * - encoding: set by user.
1512 * - decoding: unused
1513 */
1514 int coder_type;
1515
1516 /**
1517 * context model
1518 * - encoding: set by user.
1519 * - decoding: unused
1520 */
1521 int context_model;
5639729b
MN
1522#if 0
1523 /**
1524 *
1525 * - encoding: unused
1526 * - decoding: set by user.
1527 */
1528 uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1529#endif
115329f1 1530
3bb07d61
MN
1531 /**
1532 * slice flags
1533 * - encoding: unused
1534 * - decoding: set by user.
1535 */
1536 int slice_flags;
1537#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1538#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1539#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1540
fb364ada
IK
1541 /**
1542 * XVideo Motion Acceleration
1543 * - encoding: forbidden
1544 * - decoding: set by decoder
1545 */
1546 int xvmc_acceleration;
115329f1 1547
7d1c3fc1
MN
1548 /**
1549 * macroblock decision mode
1550 * - encoding: set by user.
1551 * - decoding: unused
1552 */
1553 int mb_decision;
1554#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1555#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1556#define FF_MB_DECISION_RD 2 ///< rate distoration
d6eb3c50
MN
1557
1558 /**
1559 * custom intra quantization matrix
1560 * - encoding: set by user, can be NULL
1561 * - decoding: set by lavc
1562 */
1563 uint16_t *intra_matrix;
1564
1565 /**
1566 * custom inter quantization matrix
1567 * - encoding: set by user, can be NULL
1568 * - decoding: set by lavc
1569 */
1570 uint16_t *inter_matrix;
115329f1 1571
541ae140
MN
1572 /**
1573 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1574 * this is used to workaround some encoder bugs
1575 * - encoding: unused
1576 * - decoding: set by user, will be converted to upper case by lavc during init
1577 */
1578 unsigned int stream_codec_tag;
05fbd0a2
MN
1579
1580 /**
1581 * scene change detection threshold.
1582 * 0 is default, larger means fewer detected scene changes
1583 * - encoding: set by user.
1584 * - decoding: unused
1585 */
1586 int scenechange_threshold;
158c7f05
MN
1587
1588 /**
1589 * minimum lagrange multipler
1590 * - encoding: set by user.
1591 * - decoding: unused
1592 */
1593 int lmin;
1594
1595 /**
1596 * maximum lagrange multipler
1597 * - encoding: set by user.
1598 * - decoding: unused
1599 */
1600 int lmax;
2a2bbcb0
MM
1601
1602 /**
1603 * Palette control structure
1604 * - encoding: ??? (no palette-enabled encoder yet)
1605 * - decoding: set by user.
1606 */
1607 struct AVPaletteControl *palctrl;
821cb11f
MN
1608
1609 /**
1610 * noise reduction strength
1611 * - encoding: set by user.
1612 * - decoding: unused
1613 */
1614 int noise_reduction;
115329f1 1615
074c4ca7 1616 /**
e1c2a5a0
RT
1617 * called at the beginning of a frame to get cr buffer for it.
1618 * buffer type (size, hints) must be the same. lavc won't check it.
1619 * lavc will pass previous buffer in pic, function should return
1620 * same buffer or new buffer with old frame "painted" into it.
1621 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1622 * - encoding: unused
e1c2a5a0 1623 * - decoding: set by lavc, user can override
074c4ca7 1624 */
e1c2a5a0 1625 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
ba58dabc
MN
1626
1627 /**
1628 * number of bits which should be loaded into the rc buffer before decoding starts
1629 * - encoding: set by user.
1630 * - decoding: unused
1631 */
1632 int rc_initial_buffer_occupancy;
1633
1634 /**
1635 *
1636 * - encoding: set by user.
1637 * - decoding: unused
1638 */
1639 int inter_threshold;
1640
1641 /**
1642 * CODEC_FLAG2_*.
1643 * - encoding: set by user.
1644 * - decoding: set by user.
1645 */
1646 int flags2;
7ebfc0ea
MN
1647
1648 /**
1649 * simulates errors in the bitstream to test error concealment.
1650 * - encoding: set by user.
1651 * - decoding: unused.
1652 */
1653 int error_rate;
115329f1 1654
a1e257b2
MN
1655 /**
1656 * MP3 antialias algorithm, see FF_AA_* below.
1657 * - encoding: unused
1658 * - decoding: set by user
1659 */
1660 int antialias_algo;
1661#define FF_AA_AUTO 0
1662#define FF_AA_FASTINT 1 //not implemented yet
1663#define FF_AA_INT 2
1664#define FF_AA_FLOAT 3
77ea0d4b
MN
1665 /**
1666 * Quantizer noise shaping.
1667 * - encoding: set by user
1668 * - decoding: unused
1669 */
1670 int quantizer_noise_shaping;
9c3d33d6
MN
1671
1672 /**
1673 * Thread count.
1674 * is used to decide how many independant tasks should be passed to execute()
1675 * - encoding: set by user
1676 * - decoding: set by user
1677 */
1678 int thread_count;
115329f1 1679
9c3d33d6
MN
1680 /**
1681 * the codec may call this to execute several independant things. it will return only after
1682 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1683 * default implementation will execute the parts serially
399cec2f 1684 * @param count the number of things to execute
9c3d33d6
MN
1685 * - encoding: set by lavc, user can override
1686 * - decoding: set by lavc, user can override
1687 */
1688 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
115329f1 1689
9c3d33d6
MN
1690 /**
1691 * Thread opaque.
1692 * can be used by execute() to store some per AVCodecContext stuff.
1693 * - encoding: set by execute()
1694 * - decoding: set by execute()
1695 */
1696 void *thread_opaque;
a4d36c11
MN
1697
1698 /**
115329f1 1699 * Motion estimation threshold. under which no motion estimation is
f20f8a8b 1700 * performed, but instead the user specified motion vectors are used
115329f1 1701 *
a4d36c11 1702 * - encoding: set by user
f20f8a8b 1703 * - decoding: unused
a4d36c11 1704 */
2750b827 1705 int me_threshold;
f20f8a8b
MN
1706
1707 /**
1708 * Macroblock threshold. under which the user specified macroblock types will be used
1709 * - encoding: set by user
1710 * - decoding: unused
1711 */
1712 int mb_threshold;
bf266e19
MN
1713
1714 /**
d4c5d2ad 1715 * precision of the intra dc coefficient - 8.
bf266e19
MN
1716 * - encoding: set by user
1717 * - decoding: unused
1718 */
1719 int intra_dc_precision;
d4c5d2ad
MN
1720
1721 /**
1722 * noise vs. sse weight for the nsse comparsion function.
1723 * - encoding: set by user
1724 * - decoding: unused
1725 */
1726 int nsse_weight;
0dfd33c3
MN
1727
1728 /**
160d679c 1729 * number of macroblock rows at the top which are skipped.
0dfd33c3
MN
1730 * - encoding: unused
1731 * - decoding: set by user
1732 */
1733 int skip_top;
1734
1735 /**
160d679c 1736 * number of macroblock rows at the bottom which are skipped.
0dfd33c3
MN
1737 * - encoding: unused
1738 * - decoding: set by user
1739 */
1740 int skip_bottom;
baced9f5
MN
1741
1742 /**
1743 * profile
1744 * - encoding: set by user
1745 * - decoding: set by lavc
1746 */
1747 int profile;
1748#define FF_PROFILE_UNKNOWN -99
1749
1750 /**
1751 * level
1752 * - encoding: set by user
1753 * - decoding: set by lavc
1754 */
1755 int level;
1756#define FF_LEVEL_UNKNOWN -99
178fcca8
MN
1757
1758 /**
1759 * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1760 * - encoding: unused
1761 * - decoding: set by user
1762 */
1763 int lowres;
21adafec
MN
1764
1765 /**
bbf18b21 1766 * bitsream width / height. may be different from width/height if lowres
21adafec
MN
1767 * or other things are used
1768 * - encoding: unused
1769 * - decoding: set by user before init if known, codec should override / dynamically change if needed
1770 */
1771 int coded_width, coded_height;
bbf18b21
MN
1772
1773 /**
1774 * frame skip threshold
1775 * - encoding: set by user
1776 * - decoding: unused
1777 */
1778 int frame_skip_threshold;
1779
1780 /**
1781 * frame skip factor
1782 * - encoding: set by user
1783 * - decoding: unused
1784 */
1785 int frame_skip_factor;
0fd6aea1
MN
1786
1787 /**
1788 * frame skip exponent
1789 * - encoding: set by user
1790 * - decoding: unused
1791 */
1792 int frame_skip_exp;
1793
1794 /**
1795 * frame skip comparission function
1796 * - encoding: set by user.
1797 * - decoding: unused
1798 */
1799 int frame_skip_cmp;
957c743a
CM
1800
1801 /**
1802 * border processing masking. raises the quantizer for mbs on the borders
1803 * of the picture.
1804 * - encoding: set by user
1805 * - decoding: unused
1806 */
1807 float border_masking;
6e0d8c06
MN
1808
1809 /**
1810 * minimum MB lagrange multipler.
1811 * - encoding: set by user.
1812 * - decoding: unused
1813 */
1814 int mb_lmin;
1815
1816 /**
1817 * maximum MB lagrange multipler.
1818 * - encoding: set by user.
1819 * - decoding: unused
1820 */
1821 int mb_lmax;
09c3e44e
MN
1822
1823 /**
115329f1 1824 *
09c3e44e
MN
1825 * - encoding: set by user.
1826 * - decoding: unused
1827 */
1828 int me_penalty_compensation;
8c3eba7c
MN
1829
1830 /**
115329f1 1831 *
8c3eba7c
MN
1832 * - encoding: unused
1833 * - decoding: set by user.
1834 */
1835 enum AVDiscard skip_loop_filter;
1836
1837 /**
115329f1 1838 *
8c3eba7c
MN
1839 * - encoding: unused
1840 * - decoding: set by user.
1841 */
1842 enum AVDiscard skip_idct;
1843
1844 /**
115329f1 1845 *
8c3eba7c
MN
1846 * - encoding: unused
1847 * - decoding: set by user.
1848 */
1849 enum AVDiscard skip_frame;
316a2ec8
MN
1850
1851 /**
1852 *
1853 * - encoding: set by user.
1854 * - decoding: unused
1855 */
1856 int bidir_refine;
e8501c93
MN
1857
1858 /**
1859 *
1860 * - encoding: set by user.
1861 * - decoding: unused
1862 */
1863 int brd_scale;
58f7833e
RS
1864
1865 /**
1866 * constant rate factor - quality-based VBR - values ~correspond to qps
1867 * - encoding: set by user.
1868 * - decoding: unused
1869 */
1870 int crf;
1871
1872 /**
1873 * constant quantization parameter rate control method
1874 * - encoding: set by user.
1875 * - decoding: unused
1876 */
1877 int cqp;
1878
1879 /**
1880 * minimum gop size
1881 * - encoding: set by user.
1882 * - decoding: unused
1883 */
1884 int keyint_min;
1885
1886 /**
1887 * number of reference frames
1888 * - encoding: set by user.
1889 * - decoding: unused
1890 */
1891 int refs;
1892
1893 /**
1894 * chroma qp offset from luma
1895 * - encoding: set by user.
1896 * - decoding: unused
1897 */
1898 int chromaoffset;
1899
1900 /**
1901 * influences how often b-frames are used
1902 * - encoding: set by user.
1903 * - decoding: unused
1904 */
1905 int bframebias;
1906
1907 /**
1908 * trellis RD quantization
1909 * - encoding: set by user.
1910 * - decoding: unused
1911 */
1912 int trellis;
1913
1914 /**
1915 * reduce fluctuations in qp (before curve compression)
1916 * - encoding: set by user.
1917 * - decoding: unused
1918 */
1919 float complexityblur;
1920
1921 /**
1922 * in-loop deblocking filter alphac0 parameter
1923 * alpha is in the range -6...6
1924 * - encoding: set by user.
1925 * - decoding: unused
1926 */
1927 int deblockalpha;
1928
1929 /**
1930 * in-loop deblocking filter beta parameter
1931 * beta is in the range -6...6
1932 * - encoding: set by user.
1933 * - decoding: unused
1934 */
1935 int deblockbeta;
1936
1937 /**
1938 * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1939 * - encoding: set by user.
1940 * - decoding: unused
1941 */
1942 int partitions;
1943#define X264_PART_I4X4 0x001 /* Analyse i4x4 */
1944#define X264_PART_I8X8 0x002 /* Analyse i8x8 (requires 8x8 transform) */
1945#define X264_PART_P8X8 0x010 /* Analyse p16x8, p8x16 and p8x8 */
1946#define X264_PART_P4X4 0x020 /* Analyse p8x4, p4x8, p4x4 */
1947#define X264_PART_B8X8 0x100 /* Analyse b16x8, b8x16 and b8x8 */
1948
1949 /**
1950 * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1951 * - encoding: set by user.
1952 * - decoding: unused
1953 */
1954 int directpred;
4f59b684 1955
14f0c8e2
LA
1956 /**
1957 * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1958 * - encoding: set by user.
1959 * - decoding: unused
1960 */
1961 int cutoff;
39a64e30
CH
1962
1963 /**
1964 * multiplied by qscale for each frame and added to scene_change_score
1965 * - encoding: set by user.
1966 * - decoding: unused
1967 */
1968 int scenechange_factor;
1dd509b1
MN
1969
1970 /**
1971 *
1972 * note: value depends upon the compare functin used for fullpel ME
1973 * - encoding: set by user.
1974 * - decoding: unused
1975 */
1976 int mv0_threshold;
f9243d34
CH
1977
1978 /**
1979 * adjusts sensitivity of b_frame_strategy 1
1980 * - encoding: set by user.
1981 * - decoding: unused
1982 */
1983 int b_sensitivity;
de6d9b64
FB
1984} AVCodecContext;
1985
64863965
MN
1986/**
1987 * AVCodec.
1988 */
de6d9b64 1989typedef struct AVCodec {
18f77016 1990 const char *name;
5d234974 1991 enum CodecType type;
9297ddd3 1992 enum CodecID id;
de6d9b64
FB
1993 int priv_data_size;
1994 int (*init)(AVCodecContext *);
0c1a9eda 1995 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1996 int (*close)(AVCodecContext *);
0fd90455 1997 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1998 uint8_t *buf, int buf_size);
bf89e6b1 1999 int capabilities;
a1043f9c 2000#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
40c5fa26 2001 void *dummy; // FIXME remove next time we break binary compatibility
a1043f9c 2002#endif
de6d9b64 2003 struct AVCodec *next;
7a06ff14 2004 void (*flush)(AVCodecContext *);
b0df362b 2005 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 2006 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
2007} AVCodec;
2008
97d96aaa 2009/**
d7425f59
MN
2010 * four components are given, that's all.
2011 * the last component is alpha
2012 */
de6d9b64 2013typedef struct AVPicture {
0c1a9eda 2014 uint8_t *data[4];
cd394651 2015 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
2016} AVPicture;
2017
ba118447
MM
2018/**
2019 * AVPaletteControl
2020 * This structure defines a method for communicating palette changes
2021 * between and demuxer and a decoder.
2022 */
2e99641b 2023#define AVPALETTE_SIZE 1024
432d84c3 2024#define AVPALETTE_COUNT 256
ba118447
MM
2025typedef struct AVPaletteControl {
2026
2027 /* demuxer sets this to 1 to indicate the palette has changed;
2028 * decoder resets to 0 */
2029 int palette_changed;
2030
2a2bbcb0
MM
2031 /* 4-byte ARGB palette entries, stored in native byte order; note that
2032 * the individual palette components should be on a 8-bit scale; if
2033 * the palette data comes from a IBM VGA native format, the component
2034 * data is probably 6 bits in size and needs to be scaled */
2e99641b 2035 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
2036
2037} AVPaletteControl;
2038
c6ec28b1 2039typedef struct AVSubtitleRect {
240c1657
FB
2040 uint16_t x;
2041 uint16_t y;
2042 uint16_t w;
2043 uint16_t h;
2044 uint16_t nb_colors;
240c1657
FB
2045 int linesize;
2046 uint32_t *rgba_palette;
2047 uint8_t *bitmap;
c6ec28b1
MN
2048} AVSubtitleRect;
2049
2050typedef struct AVSubtitle {
2051 uint16_t format; /* 0 = graphics */
2052 uint32_t start_display_time; /* relative to packet pts, in ms */
2053 uint32_t end_display_time; /* relative to packet pts, in ms */
2054 uint32_t num_rects;
2055 AVSubtitleRect *rects;
240c1657
FB
2056} AVSubtitle;
2057
de6d9b64
FB
2058extern AVCodec ac3_encoder;
2059extern AVCodec mp2_encoder;
9d36bdc9 2060extern AVCodec mp3lame_encoder;
81e0d0b4 2061extern AVCodec oggvorbis_encoder;
5c5dea3f 2062extern AVCodec oggtheora_encoder;
29d48296 2063extern AVCodec faac_encoder;
1ddadfa9 2064extern AVCodec xvid_encoder;
de6d9b64 2065extern AVCodec mpeg1video_encoder;
029911d1 2066extern AVCodec mpeg2video_encoder;
1c3990db 2067extern AVCodec h261_encoder;
de6d9b64
FB
2068extern AVCodec h263_encoder;
2069extern AVCodec h263p_encoder;
d4f5d74a 2070extern AVCodec flv_encoder;
de6d9b64 2071extern AVCodec rv10_encoder;
68b94c35 2072extern AVCodec rv20_encoder;
6faa4645 2073extern AVCodec dvvideo_encoder;
de6d9b64 2074extern AVCodec mjpeg_encoder;
b1e6b355 2075extern AVCodec ljpeg_encoder;
5639729b 2076extern AVCodec jpegls_encoder;
4eff7cf4 2077extern AVCodec png_encoder;
5b6d5596
MN
2078extern AVCodec ppm_encoder;
2079extern AVCodec pgm_encoder;
2080extern AVCodec pgmyuv_encoder;
2081extern AVCodec pbm_encoder;
2082extern AVCodec pam_encoder;
bf89e6b1 2083extern AVCodec mpeg4_encoder;
84afee34
MN
2084extern AVCodec msmpeg4v1_encoder;
2085extern AVCodec msmpeg4v2_encoder;
2086extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
2087extern AVCodec wmv1_encoder;
2088extern AVCodec wmv2_encoder;
11f18faf 2089extern AVCodec huffyuv_encoder;
f37b9768 2090extern AVCodec ffvhuff_encoder;
0da71265 2091extern AVCodec h264_encoder;
3d2e8cce 2092extern AVCodec asv1_encoder;
9b56edf5 2093extern AVCodec asv2_encoder;
be3564ed 2094extern AVCodec vcr1_encoder;
5e20f836 2095extern AVCodec ffv1_encoder;
791e7b83 2096extern AVCodec snow_encoder;
c3bf0288 2097extern AVCodec mdec_encoder;
a273bbfb 2098extern AVCodec zlib_encoder;
54f5fd22
AB
2099extern AVCodec sonic_encoder;
2100extern AVCodec sonic_ls_encoder;
3b64893d 2101extern AVCodec svq1_encoder;
6662ec29 2102extern AVCodec x264_encoder;
de6d9b64
FB
2103
2104extern AVCodec h263_decoder;
c6148de2 2105extern AVCodec h261_decoder;
bf89e6b1 2106extern AVCodec mpeg4_decoder;
84afee34
MN
2107extern AVCodec msmpeg4v1_decoder;
2108extern AVCodec msmpeg4v2_decoder;
2109extern AVCodec msmpeg4v3_decoder;
e1a9dbff 2110extern AVCodec wmv1_decoder;
0151a6f5 2111extern AVCodec wmv2_decoder;
21aa398f
AB
2112extern AVCodec vc9_decoder;
2113extern AVCodec wmv3_decoder;
922bc38d
MN
2114extern AVCodec mpeg1video_decoder;
2115extern AVCodec mpeg2video_decoder;
c512b303 2116extern AVCodec mpegvideo_decoder;
fb364ada 2117extern AVCodec mpeg_xvmc_decoder;
de6d9b64 2118extern AVCodec h263i_decoder;
d4f5d74a 2119extern AVCodec flv_decoder;
de6d9b64 2120extern AVCodec rv10_decoder;
68b94c35 2121extern AVCodec rv20_decoder;
3f05305d
MN
2122extern AVCodec rv30_decoder;
2123extern AVCodec rv40_decoder;
be8ffec9 2124extern AVCodec svq1_decoder;
8b82a956 2125extern AVCodec svq3_decoder;
020fcc94 2126extern AVCodec dvvideo_decoder;
bc8d1857
FB
2127extern AVCodec wmav1_decoder;
2128extern AVCodec wmav2_decoder;
4e66ab3b 2129extern AVCodec mjpeg_decoder;
b135d9fb 2130extern AVCodec mjpegb_decoder;
5e83dec4 2131extern AVCodec sp5x_decoder;
4eff7cf4 2132extern AVCodec png_decoder;
4b1f4f23 2133extern AVCodec mp2_decoder;
a96b68b7 2134extern AVCodec mp3_decoder;
1ede228a 2135extern AVCodec mp3adu_decoder;
d2a7718d 2136extern AVCodec mp3on4_decoder;
d9b1c197 2137extern AVCodec qdm2_decoder;
e0f7e329 2138extern AVCodec cook_decoder;
bf3027c8 2139extern AVCodec truespeech_decoder;
a24c4a2a 2140extern AVCodec tta_decoder;
3f95e843
FR
2141extern AVCodec mace3_decoder;
2142extern AVCodec mace6_decoder;
11f18faf 2143extern AVCodec huffyuv_decoder;
f37b9768 2144extern AVCodec ffvhuff_decoder;
3aca208a 2145extern AVCodec oggvorbis_decoder;
5c5dea3f 2146extern AVCodec oggtheora_decoder;
f70f7c6d 2147extern AVCodec cyuv_decoder;
0da71265 2148extern AVCodec h264_decoder;
deabd4fd 2149extern AVCodec indeo3_decoder;
d86053a4 2150extern AVCodec vp3_decoder;
f44ee2c3 2151extern AVCodec theora_decoder;
891f64b3 2152extern AVCodec amr_nb_decoder;
bc634f6f 2153extern AVCodec amr_nb_encoder;
d663a1fd
MN
2154extern AVCodec amr_wb_encoder;
2155extern AVCodec amr_wb_decoder;
280bd7b7
ZK
2156extern AVCodec aac_decoder;
2157extern AVCodec mpeg4aac_decoder;
3d2e8cce 2158extern AVCodec asv1_decoder;
9b56edf5 2159extern AVCodec asv2_decoder;
be3564ed 2160extern AVCodec vcr1_decoder;
3aff069b 2161extern AVCodec cljr_decoder;
5e20f836 2162extern AVCodec ffv1_decoder;
791e7b83 2163extern AVCodec snow_decoder;
8809cfee 2164extern AVCodec fourxm_decoder;
c3bf0288 2165extern AVCodec mdec_decoder;
3ef8be2b
MM
2166extern AVCodec roq_decoder;
2167extern AVCodec interplay_video_decoder;
9937e686 2168extern AVCodec xan_wc3_decoder;
2fdf638b
MM
2169extern AVCodec rpza_decoder;
2170extern AVCodec cinepak_decoder;
2171extern AVCodec msrle_decoder;
2172extern AVCodec msvideo1_decoder;
6955a882 2173extern AVCodec vqa_decoder;
4120a53a 2174extern AVCodec idcin_decoder;
1dc1ed99 2175extern AVCodec eightbps_decoder;
11e29a41 2176extern AVCodec smc_decoder;
42cad81a 2177extern AVCodec flic_decoder;
fafa0b75
MM
2178extern AVCodec vmdvideo_decoder;
2179extern AVCodec vmdaudio_decoder;
9a4117d5 2180extern AVCodec truemotion1_decoder;
64af6168 2181extern AVCodec truemotion2_decoder;
a273bbfb
RT
2182extern AVCodec mszh_decoder;
2183extern AVCodec zlib_decoder;
b8414bbd
NK
2184extern AVCodec ra_144_decoder;
2185extern AVCodec ra_288_decoder;
3ef8be2b
MM
2186extern AVCodec roq_dpcm_decoder;
2187extern AVCodec interplay_dpcm_decoder;
9937e686 2188extern AVCodec xan_dpcm_decoder;
d08d7142 2189extern AVCodec sol_dpcm_decoder;
54f5fd22 2190extern AVCodec sonic_decoder;
070ed1bc 2191extern AVCodec qtrle_decoder;
ac2570a8 2192extern AVCodec flac_decoder;
9d53d58e 2193extern AVCodec tscc_decoder;
e0f80bd7 2194extern AVCodec cscd_decoder;
dfca23e3 2195extern AVCodec nuv_decoder;
d0a0bbd2 2196extern AVCodec ulti_decoder;
d08d7142 2197extern AVCodec qdraw_decoder;
ab711b3c 2198extern AVCodec xl_decoder;
acfd8f0f 2199extern AVCodec qpeg_decoder;
85ad5695 2200extern AVCodec shorten_decoder;
9c7fb608 2201extern AVCodec loco_decoder;
a8a15e9d 2202extern AVCodec wnv1_decoder;
589f8220 2203extern AVCodec aasc_decoder;
6d6d7970 2204extern AVCodec alac_decoder;
034eeaa1 2205extern AVCodec ws_snd1_decoder;
856dbbff 2206extern AVCodec indeo2_decoder;
0bde73d9 2207extern AVCodec vorbis_decoder;
b81f8949 2208extern AVCodec fraps_decoder;
bb4c2140
MN
2209extern AVCodec libgsm_encoder;
2210extern AVCodec libgsm_decoder;
9fa62f2a 2211extern AVCodec bmp_decoder;
4e114829 2212extern AVCodec mmvideo_decoder;
9c8d8e84 2213extern AVCodec zmbv_decoder;
26376701 2214extern AVCodec avs_decoder;
348efc18
KS
2215extern AVCodec smacker_decoder;
2216extern AVCodec smackaud_decoder;
0c35eb1c 2217extern AVCodec kmvc_decoder;
0919e788 2218extern AVCodec flashsv_decoder;
de6d9b64 2219
a96b68b7
FB
2220/* pcm codecs */
2221#define PCM_CODEC(id, name) \
2222extern AVCodec name ## _decoder; \
f11d3f23 2223extern AVCodec name ## _encoder
a96b68b7 2224
b461b3bc
RD
2225PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2226PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2227PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2228PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2229PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2230PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2231PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2232PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2233PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
a96b68b7
FB
2234PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2235PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2236PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2237PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2238PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2239PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2240PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2241PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2242
0147f198
FR
2243/* adpcm codecs */
2244
2245PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2246PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
2247PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2248PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 2249PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 2250PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 2251PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 2252PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
2253PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2254PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 2255PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 2256PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
b3bfb299 2257PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
659c3692 2258PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2ff4524e 2259PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2433f24f
AJ
2260PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
2261PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
2262PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
0147f198 2263
a96b68b7
FB
2264#undef PCM_CODEC
2265
2266/* dummy raw video codec */
63167088
RS
2267extern AVCodec rawvideo_encoder;
2268extern AVCodec rawvideo_decoder;
de6d9b64
FB
2269
2270/* the following codecs use external GPL libs */
de6d9b64 2271extern AVCodec ac3_decoder;
23c99253 2272extern AVCodec dts_decoder;
de6d9b64 2273
240c1657 2274/* subtitles */
689abe56 2275extern AVCodec dvdsub_encoder;
240c1657
FB
2276extern AVCodec dvdsub_decoder;
2277extern AVCodec dvbsub_encoder;
c6ec28b1 2278extern AVCodec dvbsub_decoder;
240c1657 2279
de6d9b64
FB
2280/* resample.c */
2281
2282struct ReSampleContext;
aaaf1635 2283struct AVResampleContext;
de6d9b64
FB
2284
2285typedef struct ReSampleContext ReSampleContext;
2286
115329f1 2287ReSampleContext *audio_resample_init(int output_channels, int input_channels,
de6d9b64
FB
2288 int output_rate, int input_rate);
2289int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2290void audio_resample_close(ReSampleContext *s);
2291
6e225de2 2292struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
aaaf1635 2293int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 2294void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 2295void av_resample_close(struct AVResampleContext *c);
aaaf1635 2296
de6d9b64
FB
2297/* YUV420 format is assumed ! */
2298
2299struct ImgReSampleContext;
2300
2301typedef struct ImgReSampleContext ImgReSampleContext;
2302
2303ImgReSampleContext *img_resample_init(int output_width, int output_height,
2304 int input_width, int input_height);
ab6d194a
MN
2305
2306ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2307 int iwidth, int iheight,
2308 int topBand, int bottomBand,
1ff93ffc
TK
2309 int leftBand, int rightBand,
2310 int padtop, int padbottom,
2311 int padleft, int padright);
2312
ab6d194a 2313
115329f1 2314void img_resample(ImgReSampleContext *s,
da64ecc3 2315 AVPicture *output, const AVPicture *input);
de6d9b64
FB
2316
2317void img_resample_close(ImgReSampleContext *s);
2318
75917b88
DH
2319/**
2320 * Allocate memory for a picture. Call avpicture_free to free it.
2321 *
2322 * @param picture the picture to be filled in.
2323 * @param pix_fmt the format of the picture.
2324 * @param width the width of the picture.
2325 * @param height the height of the picture.
2326 * @return 0 if successful, -1 if not.
2327 */
2328int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2329
2330/* Free a picture previously allocated by avpicture_alloc. */
2331void avpicture_free(AVPicture *picture);
2332
0c1a9eda 2333int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 2334 int pix_fmt, int width, int height);
da64ecc3 2335int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 2336 unsigned char *dest, int dest_size);
219b06c6 2337int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
2338void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2339const char *avcodec_get_pix_fmt_name(int pix_fmt);
21adafec 2340void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
63167088 2341enum PixelFormat avcodec_get_pix_fmt(const char* name);
d07730dd 2342unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
219b06c6 2343
fab21997
FB
2344#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
2345#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
2346#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
2347#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
2348#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
2349#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2350
2351int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2352 int has_alpha);
2353int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2354 int has_alpha, int *loss_ptr);
2355
0469baf1
FB
2356#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
2357#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3 2358int img_get_alpha_info(const AVPicture *src,
bb270c08 2359 int pix_fmt, int width, int height);
0469baf1 2360
219b06c6
FB
2361/* convert among pixel formats */
2362int img_convert(AVPicture *dst, int dst_pix_fmt,
115329f1 2363 const AVPicture *src, int pix_fmt,
219b06c6
FB
2364 int width, int height);
2365
2366/* deinterlace a picture */
da64ecc3 2367int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
2368 int pix_fmt, int width, int height);
2369
2370/* external high level API */
2371
2372extern AVCodec *first_avcodec;
2373
156e5023 2374/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 2375unsigned avcodec_version(void);
8bceb6af 2376/* returns LIBAVCODEC_BUILD constant */
51a49663 2377unsigned avcodec_build(void);
de6d9b64
FB
2378void avcodec_init(void);
2379
2380void register_avcodec(AVCodec *format);
2381AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 2382AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
2383AVCodec *avcodec_find_decoder(enum CodecID id);
2384AVCodec *avcodec_find_decoder_by_name(const char *name);
2385void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2386
1e491e29 2387void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 2388AVCodecContext *avcodec_alloc_context(void);
7906085f 2389void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 2390AVFrame *avcodec_alloc_frame(void);
1e491e29 2391
492cd3a9
MN
2392int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2393void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
2394int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2395void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
0ecca7a4 2396int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
3a569751 2397enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 2398
5a815088
MN
2399int avcodec_thread_init(AVCodecContext *s, int thread_count);
2400void avcodec_thread_free(AVCodecContext *s);
2401int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 2402int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
2403//FIXME func typedef
2404
7a06ff14
MN
2405/**
2406 * opens / inits the AVCodecContext.
2407 * not thread save!
2408 */
de6d9b64 2409int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 2410
115329f1 2411int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 2412 int *frame_size_ptr,
0c1a9eda 2413 uint8_t *buf, int buf_size);
115329f1 2414int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 2415 int *got_picture_ptr,
0c1a9eda 2416 uint8_t *buf, int buf_size);
240c1657
FB
2417int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2418 int *got_sub_ptr,
2419 const uint8_t *buf, int buf_size);
115329f1 2420int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2421 int *data_size_ptr,
0c1a9eda 2422 uint8_t *buf, int buf_size);
115329f1 2423int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2424 const short *samples);
115329f1 2425int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2426 const AVFrame *pict);
115329f1 2427int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657 2428 const AVSubtitle *sub);
de6d9b64
FB
2429
2430int avcodec_close(AVCodecContext *avctx);
2431
2432void avcodec_register_all(void);
a96b68b7 2433
1c2a8c7f
MN
2434void avcodec_flush_buffers(AVCodecContext *avctx);
2435
88730be6
MR
2436void avcodec_default_free_buffers(AVCodecContext *s);
2437
14bea432 2438/* misc usefull functions */
d8085ea7
MN
2439
2440/**
2441 * returns a single letter to describe the picture type
2442 */
2443char av_get_pict_type_char(int pict_type);
2444
2e8f2c20 2445
8424cf50
FB
2446/* frame parsing */
2447typedef struct AVCodecParserContext {
2448 void *priv_data;
2449 struct AVCodecParser *parser;
2450 int64_t frame_offset; /* offset of the current frame */
115329f1 2451 int64_t cur_offset; /* current offset
8424cf50
FB
2452 (incremented by each av_parser_parse()) */
2453 int64_t last_frame_offset; /* offset of the last frame */
2454 /* video info */
2455 int pict_type; /* XXX: put it back in AVCodecContext */
2456 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2457 int64_t pts; /* pts of the current frame */
2458 int64_t dts; /* dts of the current frame */
2459
2460 /* private data */
2461 int64_t last_pts;
2462 int64_t last_dts;
a62aecce 2463 int fetch_timestamp;
b84f2a35
FB
2464
2465#define AV_PARSER_PTS_NB 4
2466 int cur_frame_start_index;
2467 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2468 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2469 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
115329f1 2470
7cbaa7ba
MN
2471 int flags;
2472#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
8424cf50
FB
2473} AVCodecParserContext;
2474
2475typedef struct AVCodecParser {
99f06236 2476 int codec_ids[5]; /* several codec IDs are permitted */
8424cf50
FB
2477 int priv_data_size;
2478 int (*parser_init)(AVCodecParserContext *s);
115329f1 2479 int (*parser_parse)(AVCodecParserContext *s,
8424cf50 2480 AVCodecContext *avctx,
115329f1 2481 uint8_t **poutbuf, int *poutbuf_size,
8424cf50
FB
2482 const uint8_t *buf, int buf_size);
2483 void (*parser_close)(AVCodecParserContext *s);
90ad92b3 2484 int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
8424cf50
FB
2485 struct AVCodecParser *next;
2486} AVCodecParser;
2487
2488extern AVCodecParser *av_first_parser;
2489
2490void av_register_codec_parser(AVCodecParser *parser);
2491AVCodecParserContext *av_parser_init(int codec_id);
115329f1 2492int av_parser_parse(AVCodecParserContext *s,
8424cf50 2493 AVCodecContext *avctx,
115329f1 2494 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2495 const uint8_t *buf, int buf_size,
2496 int64_t pts, int64_t dts);
90ad92b3
MN
2497int av_parser_change(AVCodecParserContext *s,
2498 AVCodecContext *avctx,
115329f1 2499 uint8_t **poutbuf, int *poutbuf_size,
90ad92b3 2500 const uint8_t *buf, int buf_size, int keyframe);
8424cf50
FB
2501void av_parser_close(AVCodecParserContext *s);
2502
2503extern AVCodecParser mpegvideo_parser;
2504extern AVCodecParser mpeg4video_parser;
c6148de2 2505extern AVCodecParser h261_parser;
8424cf50
FB
2506extern AVCodecParser h263_parser;
2507extern AVCodecParser h264_parser;
8e6325b9 2508extern AVCodecParser mjpeg_parser;
99f06236 2509extern AVCodecParser pnm_parser;
8424cf50
FB
2510extern AVCodecParser mpegaudio_parser;
2511extern AVCodecParser ac3_parser;
240c1657 2512extern AVCodecParser dvdsub_parser;
c6ec28b1 2513extern AVCodecParser dvbsub_parser;
da46276f 2514extern AVCodecParser aac_parser;
8424cf50 2515
544eb99c 2516/* memory */
e4eadb4b 2517void *av_malloc(unsigned int size);
18f77016 2518void *av_mallocz(unsigned int size);
8e1e6f31 2519void *av_realloc(void *ptr, unsigned int size);
544eb99c 2520void av_free(void *ptr);
8e1e6f31 2521char *av_strdup(const char *s);
81c5f887 2522void av_freep(void *ptr);
97d96aaa 2523void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2524/* for static data only */
2525/* call av_free_static to release all staticaly allocated tables */
628d601b 2526void av_free_static(void);
8d1f2ba5 2527void *av_mallocz_static(unsigned int size);
073c2593 2528void *av_realloc_static(void *ptr, unsigned int size);
544eb99c 2529
fc384777
MM
2530/* add by bero : in adx.c */
2531int is_adx(const unsigned char *buf,size_t bufsize);
2532
e1c2a5a0
RT
2533void img_copy(AVPicture *dst, const AVPicture *src,
2534 int pix_fmt, int width, int height);
2535
f2651e7a
BC
2536int img_crop(AVPicture *dst, const AVPicture *src,
2537 int pix_fmt, int top_band, int left_band);
2538
5341c209
LA
2539int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2540 int padtop, int padbottom, int padleft, int padright, int *color);
2541
9b879566
MB
2542/* av_log API */
2543
2544#include <stdarg.h>
2545
d8019eb5 2546#define AV_LOG_QUIET -1
9b879566
MB
2547#define AV_LOG_ERROR 0
2548#define AV_LOG_INFO 1
2549#define AV_LOG_DEBUG 2
2550
f4bd8cf0 2551#ifdef __GNUC__
bc874dae 2552extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2553#else
2554extern void av_log(void*, int level, const char *fmt, ...);
2555#endif
2556
bc874dae 2557extern void av_vlog(void*, int level, const char *fmt, va_list);
9b879566
MB
2558extern int av_log_get_level(void);
2559extern void av_log_set_level(int);
bc874dae 2560extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2561
3a278992 2562/* endian macros */
e96682e6 2563#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2564#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2565#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2566 (((uint8_t*)(x))[1] << 16) | \
2567 (((uint8_t*)(x))[2] << 8) | \
2568 ((uint8_t*)(x))[3])
2569#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2570#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2571 (((uint8_t*)(x))[2] << 16) | \
2572 (((uint8_t*)(x))[1] << 8) | \
2573 ((uint8_t*)(x))[0])
e96682e6 2574#endif
3a278992 2575
ad2b531d
MR
2576extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2577
02d697aa
ZK
2578#ifdef __cplusplus
2579}
2580#endif
2581
a96b68b7 2582#endif /* AVCODEC_H */