Statistics
| Branch: | Revision:

ffmpeg / libavcodec / avcodec.h @ 9e96ab03

History | View | Annotate | Download (74.7 KB)

1
#ifndef AVCODEC_H
2
#define AVCODEC_H
3

    
4
/**
5
 * @file avcodec.h
6
 * external api header.
7
 */
8

    
9

    
10
#ifdef __cplusplus
11
extern "C" {
12
#endif
13

    
14
#include "avutil.h"
15
#include <sys/types.h> /* size_t */
16

    
17
#define AV_STRINGIFY(s)         AV_TOSTRING(s)
18
#define AV_TOSTRING(s) #s
19

    
20
#define LIBAVCODEC_VERSION_INT  ((51<<16)+(9<<8)+0)
21
#define LIBAVCODEC_VERSION      51.9.0
22
#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
23

    
24
#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
25

    
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}
29

    
30
enum CodecID {
31
    CODEC_ID_NONE,
32
    CODEC_ID_MPEG1VIDEO,
33
    CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
34
    CODEC_ID_MPEG2VIDEO_XVMC,
35
    CODEC_ID_H261,
36
    CODEC_ID_H263,
37
    CODEC_ID_RV10,
38
    CODEC_ID_RV20,
39
    CODEC_ID_MJPEG,
40
    CODEC_ID_MJPEGB,
41
    CODEC_ID_LJPEG,
42
    CODEC_ID_SP5X,
43
    CODEC_ID_JPEGLS,
44
    CODEC_ID_MPEG4,
45
    CODEC_ID_RAWVIDEO,
46
    CODEC_ID_MSMPEG4V1,
47
    CODEC_ID_MSMPEG4V2,
48
    CODEC_ID_MSMPEG4V3,
49
    CODEC_ID_WMV1,
50
    CODEC_ID_WMV2,
51
    CODEC_ID_H263P,
52
    CODEC_ID_H263I,
53
    CODEC_ID_FLV1,
54
    CODEC_ID_SVQ1,
55
    CODEC_ID_SVQ3,
56
    CODEC_ID_DVVIDEO,
57
    CODEC_ID_HUFFYUV,
58
    CODEC_ID_CYUV,
59
    CODEC_ID_H264,
60
    CODEC_ID_INDEO3,
61
    CODEC_ID_VP3,
62
    CODEC_ID_THEORA,
63
    CODEC_ID_ASV1,
64
    CODEC_ID_ASV2,
65
    CODEC_ID_FFV1,
66
    CODEC_ID_4XM,
67
    CODEC_ID_VCR1,
68
    CODEC_ID_CLJR,
69
    CODEC_ID_MDEC,
70
    CODEC_ID_ROQ,
71
    CODEC_ID_INTERPLAY_VIDEO,
72
    CODEC_ID_XAN_WC3,
73
    CODEC_ID_XAN_WC4,
74
    CODEC_ID_RPZA,
75
    CODEC_ID_CINEPAK,
76
    CODEC_ID_WS_VQA,
77
    CODEC_ID_MSRLE,
78
    CODEC_ID_MSVIDEO1,
79
    CODEC_ID_IDCIN,
80
    CODEC_ID_8BPS,
81
    CODEC_ID_SMC,
82
    CODEC_ID_FLIC,
83
    CODEC_ID_TRUEMOTION1,
84
    CODEC_ID_VMDVIDEO,
85
    CODEC_ID_MSZH,
86
    CODEC_ID_ZLIB,
87
    CODEC_ID_QTRLE,
88
    CODEC_ID_SNOW,
89
    CODEC_ID_TSCC,
90
    CODEC_ID_ULTI,
91
    CODEC_ID_QDRAW,
92
    CODEC_ID_VIXL,
93
    CODEC_ID_QPEG,
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,
101
    CODEC_ID_FFVHUFF,
102
    CODEC_ID_RV30,
103
    CODEC_ID_RV40,
104
    CODEC_ID_VC9,
105
    CODEC_ID_WMV3,
106
    CODEC_ID_LOCO,
107
    CODEC_ID_WNV1,
108
    CODEC_ID_AASC,
109
    CODEC_ID_INDEO2,
110
    CODEC_ID_FRAPS,
111
    CODEC_ID_TRUEMOTION2,
112
    CODEC_ID_BMP,
113
    CODEC_ID_CSCD,
114
    CODEC_ID_MMVIDEO,
115
    CODEC_ID_ZMBV,
116
    CODEC_ID_AVS,
117
    CODEC_ID_SMACKVIDEO,
118
    CODEC_ID_NUV,
119
    CODEC_ID_KMVC,
120
    CODEC_ID_FLASHSV,
121

    
122
    /* various pcm "codecs" */
123
    CODEC_ID_PCM_S16LE= 0x10000,
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,
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,
140

    
141
    /* various adpcm codecs */
142
    CODEC_ID_ADPCM_IMA_QT= 0x11000,
143
    CODEC_ID_ADPCM_IMA_WAV,
144
    CODEC_ID_ADPCM_IMA_DK3,
145
    CODEC_ID_ADPCM_IMA_DK4,
146
    CODEC_ID_ADPCM_IMA_WS,
147
    CODEC_ID_ADPCM_IMA_SMJPEG,
148
    CODEC_ID_ADPCM_MS,
149
    CODEC_ID_ADPCM_4XM,
150
    CODEC_ID_ADPCM_XA,
151
    CODEC_ID_ADPCM_ADX,
152
    CODEC_ID_ADPCM_EA,
153
    CODEC_ID_ADPCM_G726,
154
    CODEC_ID_ADPCM_CT,
155
    CODEC_ID_ADPCM_SWF,
156
    CODEC_ID_ADPCM_YAMAHA,
157
    CODEC_ID_ADPCM_SBPRO_4,
158
    CODEC_ID_ADPCM_SBPRO_3,
159
    CODEC_ID_ADPCM_SBPRO_2,
160

    
161
    /* AMR */
162
    CODEC_ID_AMR_NB= 0x12000,
163
    CODEC_ID_AMR_WB,
164

    
165
    /* RealAudio codecs*/
166
    CODEC_ID_RA_144= 0x13000,
167
    CODEC_ID_RA_288,
168

    
169
    /* various DPCM codecs */
170
    CODEC_ID_ROQ_DPCM= 0x14000,
171
    CODEC_ID_INTERPLAY_DPCM,
172
    CODEC_ID_XAN_DPCM,
173
    CODEC_ID_SOL_DPCM,
174

    
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,
190
    CODEC_ID_FLAC,
191
    CODEC_ID_MP3ADU,
192
    CODEC_ID_MP3ON4,
193
    CODEC_ID_SHORTEN,
194
    CODEC_ID_ALAC,
195
    CODEC_ID_WESTWOOD_SND1,
196
    CODEC_ID_GSM,
197
    CODEC_ID_QDM2,
198
    CODEC_ID_COOK,
199
    CODEC_ID_TRUESPEECH,
200
    CODEC_ID_TTA,
201
    CODEC_ID_SMACKAUDIO,
202

    
203
    CODEC_ID_OGGTHEORA= 0x16000,
204

    
205
    /* subtitle codecs */
206
    CODEC_ID_DVD_SUBTITLE= 0x17000,
207
    CODEC_ID_DVB_SUBTITLE,
208

    
209
    CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
210
                         stream (only used by libavformat) */
211
};
212

    
213
/* CODEC_ID_MP3LAME is absolete */
214
#define CODEC_ID_MP3LAME CODEC_ID_MP3
215

    
216
enum CodecType {
217
    CODEC_TYPE_UNKNOWN = -1,
218
    CODEC_TYPE_VIDEO,
219
    CODEC_TYPE_AUDIO,
220
    CODEC_TYPE_DATA,
221
    CODEC_TYPE_SUBTITLE,
222
};
223

    
224
/* currently unused, may be used if 24/32 bits samples ever supported */
225
/* all in native endian */
226
enum SampleFormat {
227
    SAMPLE_FMT_NONE = -1,
228
    SAMPLE_FMT_U8,              ///< unsigned 8 bits
229
    SAMPLE_FMT_S16,             ///< signed 16 bits
230
    SAMPLE_FMT_S24,             ///< signed 24 bits
231
    SAMPLE_FMT_S32,             ///< signed 32 bits
232
    SAMPLE_FMT_FLT,             ///< float
233
};
234

    
235
/* in bytes */
236
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
237

    
238
/**
239
 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
240
 * this is mainly needed because some optimized bitstream readers read
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
244
 */
245
#define FF_INPUT_BUFFER_PADDING_SIZE 8
246

    
247
/**
248
 * minimum encoding buffer size.
249
 * used to avoid some checks during header writing
250
 */
251
#define FF_MIN_BUFFER_SIZE 16384
252

    
253
/* motion estimation type, EPZS by default */
254
enum Motion_Est_ID {
255
    ME_ZERO = 1,
256
    ME_FULL,
257
    ME_LOG,
258
    ME_PHODS,
259
    ME_EPZS,
260
    ME_X1,
261
    ME_HEX,
262
    ME_UMH,
263
    ME_ITER,
264
};
265

    
266
enum 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

    
276
typedef 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

    
283
/* only for ME compatiblity with old apps */
284
extern int motion_estimation_method;
285

    
286
#define FF_MAX_B_FRAMES 16
287

    
288
/* encoding support
289
   these flags can be passed in AVCodecContext.flags before initing
290
   Note: not everything is supported yet.
291
*/
292

    
293
#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale
294
#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / Advanced prediction for H263
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
300
   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
301
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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
306
#define CODEC_FLAG_EMU_EDGE 0x4000///< don't draw edges
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
309
                                            of only at frame boundaries */
310
#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization
311
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
312
#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay
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)
317
/* Fx : Flag for h263+ extra options */
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
320
#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector
321
#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
322
#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
323
#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
324
#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
325
#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
326
#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
327
#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
328
#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
329
#define CODEC_FLAG_CLOSED_GOP     ((int)0x80000000)
330
#define CODEC_FLAG2_FAST          0x00000001 ///< allow non spec compliant speedup tricks
331
#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< strictly enforce GOP size
332
#define CODEC_FLAG2_NO_OUTPUT     0x00000004 ///< skip bitstream encoding
333
#define CODEC_FLAG2_LOCAL_HEADER  0x00000008 ///< place global headers at every keyframe instead of in extradata
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
341
#define CODEC_FLAG2_INTRA_VLC     0x00000800 ///< use MPEG-2 intra VLC table
342
#define CODEC_FLAG2_MEMC_ONLY     0x00001000 ///< only do ME/MC (I frames -> ref, P frame -> ME+MC)
343

    
344
/* Unsupported options :
345
 *              Syntax Arithmetic coding (SAC)
346
 *              Reference Picture Selection
347
 *              Independant Segment Decoding */
348
/* /Fx */
349
/* codec capabilities */
350

    
351
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
352
/**
353
 * Codec uses get_buffer() for allocating buffers.
354
 * direct rendering method 1
355
 */
356
#define CODEC_CAP_DR1             0x0002
357
/* if 'parse_only' field is true, then avcodec_parse_frame() can be
358
   used */
359
#define CODEC_CAP_PARSE_ONLY      0x0004
360
#define CODEC_CAP_TRUNCATED       0x0008
361
/* codec can export data for HW decoding (XvMC) */
362
#define CODEC_CAP_HWACCEL         0x0010
363
/**
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
 */
367
#define CODEC_CAP_DELAY           0x0020
368
/**
369
 * Codec can be fed a final frame with a smaller size.
370
 * This can be used to prevent truncation of the last audio samples.
371
 */
372
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
373

    
374
//the following defines may change, don't expect compatibility if you use them
375
#define MB_TYPE_INTRA4x4   0x0001
376
#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
377
#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
378
#define MB_TYPE_16x16      0x0008
379
#define MB_TYPE_16x8       0x0010
380
#define MB_TYPE_8x16       0x0020
381
#define MB_TYPE_8x8        0x0040
382
#define MB_TYPE_INTERLACED 0x0080
383
#define MB_TYPE_DIRECT2     0x0100 //FIXME
384
#define MB_TYPE_ACPRED     0x0200
385
#define MB_TYPE_GMC        0x0400
386
#define MB_TYPE_SKIP       0x0800
387
#define MB_TYPE_P0L0       0x1000
388
#define MB_TYPE_P1L0       0x2000
389
#define MB_TYPE_P0L1       0x4000
390
#define MB_TYPE_P1L1       0x8000
391
#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
392
#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
393
#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
394
#define MB_TYPE_QUANT      0x00010000
395
#define MB_TYPE_CBP        0x00020000
396
//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
397

    
398
/**
399
 * Pan Scan area.
400
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
401
 */
402
typedef struct AVPanScan{
403
    /**
404
     * id.
405
     * - encoding: set by user.
406
     * - decoding: set by lavc
407
     */
408
    int id;
409

    
410
    /**
411
     * width and height in 1/16 pel
412
     * - encoding: set by user.
413
     * - decoding: set by lavc
414
     */
415
    int width;
416
    int height;
417

    
418
    /**
419
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
420
     * - encoding: set by user.
421
     * - decoding: set by lavc
422
     */
423
    int16_t position[3][2];
424
}AVPanScan;
425

    
426
#define FF_COMMON_FRAME \
427
    /**\
428
     * pointer to the picture planes.\
429
     * this might be different from the first allocated byte\
430
     * - encoding: \
431
     * - decoding: \
432
     */\
433
    uint8_t *data[4];\
434
    int linesize[4];\
435
    /**\
436
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
437
     * this isn't used by lavc unless the default get/release_buffer() is used\
438
     * - encoding: \
439
     * - decoding: \
440
     */\
441
    uint8_t *base[4];\
442
    /**\
443
     * 1 -> keyframe, 0-> not\
444
     * - encoding: set by lavc\
445
     * - decoding: set by lavc\
446
     */\
447
    int key_frame;\
448
\
449
    /**\
450
     * picture type of the frame, see ?_TYPE below.\
451
     * - encoding: set by lavc for coded_picture (and set by user for input)\
452
     * - decoding: set by lavc\
453
     */\
454
    int pict_type;\
455
\
456
    /**\
457
     * presentation timestamp in time_base units (time when frame should be shown to user)\
458
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
459
     * - encoding: MUST be set by user\
460
     * - decoding: set by lavc\
461
     */\
462
    int64_t pts;\
463
\
464
    /**\
465
     * picture number in bitstream order.\
466
     * - encoding: set by\
467
     * - decoding: set by lavc\
468
     */\
469
    int coded_picture_number;\
470
    /**\
471
     * picture number in display order.\
472
     * - encoding: set by\
473
     * - decoding: set by lavc\
474
     */\
475
    int display_picture_number;\
476
\
477
    /**\
478
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
479
     * - encoding: set by lavc for coded_picture (and set by user for input)\
480
     * - decoding: set by lavc\
481
     */\
482
    int quality; \
483
\
484
    /**\
485
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
486
     * set to INT_MAX if the buffer has not been used yet \
487
     * - encoding: unused\
488
     * - decoding: MUST be set by get_buffer()\
489
     */\
490
    int age;\
491
\
492
    /**\
493
     * is this picture used as reference\
494
     * - encoding: unused\
495
     * - decoding: set by lavc (before get_buffer() call))\
496
     */\
497
    int reference;\
498
\
499
    /**\
500
     * QP table\
501
     * - encoding: unused\
502
     * - decoding: set by lavc\
503
     */\
504
    int8_t *qscale_table;\
505
    /**\
506
     * QP store stride\
507
     * - encoding: unused\
508
     * - decoding: set by lavc\
509
     */\
510
    int qstride;\
511
\
512
    /**\
513
     * mbskip_table[mb]>=1 if MB didnt change\
514
     * stride= mb_width = (width+15)>>4\
515
     * - encoding: unused\
516
     * - decoding: set by lavc\
517
     */\
518
    uint8_t *mbskip_table;\
519
\
520
    /**\
521
     * Motion vector table.\
522
     * @code\
523
     * example:\
524
     * int mv_sample_log2= 4 - motion_subsample_log2;\
525
     * int mb_width= (width+15)>>4;\
526
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
527
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
528
     * @endcode\
529
     * - encoding: set by user\
530
     * - decoding: set by lavc\
531
     */\
532
    int16_t (*motion_val[2])[2];\
533
\
534
    /**\
535
     * Macroblock type table\
536
     * mb_type_base + mb_width + 2\
537
     * - encoding: set by user\
538
     * - decoding: set by lavc\
539
     */\
540
    uint32_t *mb_type;\
541
\
542
    /**\
543
     * log2 of the size of the block which a single vector in motion_val represents: \
544
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
545
     * - encoding: unused\
546
     * - decoding: set by lavc\
547
     */\
548
    uint8_t motion_subsample_log2;\
549
\
550
    /**\
551
     * for some private data of the user\
552
     * - encoding: unused\
553
     * - decoding: set by user\
554
     */\
555
    void *opaque;\
556
\
557
    /**\
558
     * error\
559
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
560
     * - decoding: unused\
561
     */\
562
    uint64_t error[4];\
563
\
564
    /**\
565
     * type of the buffer (to keep track of who has to dealloc data[*])\
566
     * - encoding: set by the one who allocs it\
567
     * - decoding: set by the one who allocs it\
568
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
569
     */\
570
    int type;\
571
    \
572
    /**\
573
     * when decoding, this signal how much the picture must be delayed.\
574
     * extra_delay = repeat_pict / (2*fps)\
575
     * - encoding: unused\
576
     * - decoding: set by lavc\
577
     */\
578
    int repeat_pict;\
579
    \
580
    /**\
581
     * \
582
     */\
583
    int qscale_type;\
584
    \
585
    /**\
586
     * The content of the picture is interlaced.\
587
     * - encoding: set by user\
588
     * - decoding: set by lavc (default 0)\
589
     */\
590
    int interlaced_frame;\
591
    \
592
    /**\
593
     * if the content is interlaced, is top field displayed first.\
594
     * - encoding: set by user\
595
     * - decoding: set by lavc\
596
     */\
597
    int top_field_first;\
598
    \
599
    /**\
600
     * Pan scan.\
601
     * - encoding: set by user\
602
     * - decoding: set by lavc\
603
     */\
604
    AVPanScan *pan_scan;\
605
    \
606
    /**\
607
     * tell user application that palette has changed from previous frame.\
608
     * - encoding: ??? (no palette-enabled encoder yet)\
609
     * - decoding: set by lavc (default 0)\
610
     */\
611
    int palette_has_changed;\
612
    \
613
    /**\
614
     * Codec suggestion on buffer type if != 0\
615
     * - encoding: unused\
616
     * - decoding: set by lavc (before get_buffer() call))\
617
     */\
618
    int buffer_hints;\
619
\
620
    /**\
621
     * DCT coeffitients\
622
     * - encoding: unused\
623
     * - decoding: set by lavc\
624
     */\
625
    short *dct_coeff;\
626
\
627
    /**\
628
     * Motion referece frame index\
629
     * - encoding: set by user\
630
     * - decoding: set by lavc\
631
     */\
632
    int8_t *ref_index[2];
633

    
634
#define FF_QSCALE_TYPE_MPEG1 0
635
#define FF_QSCALE_TYPE_MPEG2 1
636
#define FF_QSCALE_TYPE_H264  2
637

    
638
#define FF_BUFFER_TYPE_INTERNAL 1
639
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
640
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
641
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
642

    
643

    
644
#define FF_I_TYPE 1 // Intra
645
#define FF_P_TYPE 2 // Predicted
646
#define FF_B_TYPE 3 // Bi-dir predicted
647
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
648
#define FF_SI_TYPE 5
649
#define FF_SP_TYPE 6
650

    
651
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
652
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
653
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
654
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
655

    
656
/**
657
 * Audio Video Frame.
658
 */
659
typedef struct AVFrame {
660
    FF_COMMON_FRAME
661
} AVFrame;
662

    
663
#define DEFAULT_FRAME_RATE_BASE 1001000
664

    
665
/**
666
 * Used by av_log
667
 */
668
typedef struct AVCLASS AVClass;
669
struct AVCLASS {
670
    const char* class_name;
671
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
672
                                        or AVFormatContext, which begin with an AVClass.
673
                                        Needed because av_log is in libavcodec and has no visibility
674
                                        of AVIn/OutputFormat */
675
    struct AVOption *option;
676
};
677

    
678
/**
679
 * main external api structure.
680
 */
681
typedef struct AVCodecContext {
682
    /**
683
     * Info on struct for av_log
684
     * - set by avcodec_alloc_context
685
     */
686
    AVClass *av_class;
687
    /**
688
     * the average bitrate.
689
     * - encoding: set by user. unused for constant quantizer encoding
690
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
691
     */
692
    int bit_rate;
693

    
694
    /**
695
     * number of bits the bitstream is allowed to diverge from the reference.
696
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
697
     * - encoding: set by user. unused for constant quantizer encoding
698
     * - decoding: unused
699
     */
700
    int bit_rate_tolerance;
701

    
702
    /**
703
     * CODEC_FLAG_*.
704
     * - encoding: set by user.
705
     * - decoding: set by user.
706
     */
707
    int flags;
708

    
709
    /**
710
     * some codecs needs additionnal format info. It is stored here
711
     * - encoding: set by user.
712
     * - decoding: set by lavc. (FIXME is this ok?)
713
     */
714
    int sub_id;
715

    
716
    /**
717
     * motion estimation algorithm used for video coding.
718
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
719
     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
720
     * - encoding: MUST be set by user.
721
     * - decoding: unused
722
     */
723
    int me_method;
724

    
725
    /**
726
     * some codecs need / can use extra-data like huffman tables.
727
     * mjpeg: huffman tables
728
     * rv10: additional flags
729
     * mpeg4: global headers (they can be in the bitstream or here)
730
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
731
     * then extradata_size to avoid prolems if its read with the bitstream reader
732
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
733
     * - encoding: set/allocated/freed by lavc.
734
     * - decoding: set/allocated/freed by user.
735
     */
736
    void *extradata;
737
    int extradata_size;
738

    
739
    /**
740
     * this is the fundamental unit of time (in seconds) in terms
741
     * of which frame timestamps are represented. for fixed-fps content,
742
     * timebase should be 1/framerate and timestamp increments should be
743
     * identically 1.
744
     * - encoding: MUST be set by user
745
     * - decoding: set by lavc.
746
     */
747
    AVRational time_base;
748

    
749
    /* video only */
750
    /**
751
     * picture width / height.
752
     * - encoding: MUST be set by user.
753
     * - decoding: set by lavc.
754
     * Note, for compatibility its possible to set this instead of
755
     * coded_width/height before decoding
756
     */
757
    int width, height;
758

    
759
#define FF_ASPECT_EXTENDED 15
760

    
761
    /**
762
     * the number of pictures in a group of pitures, or 0 for intra_only.
763
     * - encoding: set by user.
764
     * - decoding: unused
765
     */
766
    int gop_size;
767

    
768
    /**
769
     * pixel format, see PIX_FMT_xxx.
770
     * - encoding: set by user.
771
     * - decoding: set by lavc.
772
     */
773
    enum PixelFormat pix_fmt;
774

    
775
    /**
776
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
777
     * has to read frames at native frame rate.
778
     * - encoding: set by user.
779
     * - decoding: unused.
780
     */
781
    int rate_emu;
782

    
783
    /**
784
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
785
     * decoder to draw an horizontal band. It improve cache usage. Not
786
     * all codecs can do that. You must check the codec capabilities
787
     * before
788
     * - encoding: unused
789
     * - decoding: set by user.
790
     * @param height the height of the slice
791
     * @param y the y position of the slice
792
     * @param type 1->top field, 2->bottom field, 3->frame
793
     * @param offset offset into the AVFrame.data from which the slice should be read
794
     */
795
    void (*draw_horiz_band)(struct AVCodecContext *s,
796
                            const AVFrame *src, int offset[4],
797
                            int y, int type, int height);
798

    
799
    /* audio only */
800
    int sample_rate; ///< samples per sec
801
    int channels;
802

    
803
    /**
804
     * audio sample format.
805
     * - encoding: set by user.
806
     * - decoding: set by lavc.
807
     */
808
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
809

    
810
    /* the following data should not be initialized */
811
    /**
812
     * samples per packet. initialized when calling 'init'
813
     */
814
    int frame_size;
815
    int frame_number;   ///< audio or video frame number
816
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
817

    
818
    /**
819
     * number of frames the decoded output will be delayed relative to
820
     * the encoded input.
821
     * - encoding: set by lavc.
822
     * - decoding: unused
823
     */
824
    int delay;
825

    
826
    /* - encoding parameters */
827
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
828
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
829

    
830
    /**
831
     * minimum quantizer.
832
     * - encoding: set by user.
833
     * - decoding: unused
834
     */
835
    int qmin;
836

    
837
    /**
838
     * maximum quantizer.
839
     * - encoding: set by user.
840
     * - decoding: unused
841
     */
842
    int qmax;
843

    
844
    /**
845
     * maximum quantizer difference etween frames.
846
     * - encoding: set by user.
847
     * - decoding: unused
848
     */
849
    int max_qdiff;
850

    
851
    /**
852
     * maximum number of b frames between non b frames.
853
     * note: the output will be delayed by max_b_frames+1 relative to the input
854
     * - encoding: set by user.
855
     * - decoding: unused
856
     */
857
    int max_b_frames;
858

    
859
    /**
860
     * qscale factor between ip and b frames.
861
     * - encoding: set by user.
862
     * - decoding: unused
863
     */
864
    float b_quant_factor;
865

    
866
    /** obsolete FIXME remove */
867
    int rc_strategy;
868
#define FF_RC_STRATEGY_XVID 1
869

    
870
    int b_frame_strategy;
871

    
872
    /**
873
     * hurry up amount.
874
     * deprecated in favor of skip_idct and skip_frame
875
     * - encoding: unused
876
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
877
     */
878
    int hurry_up;
879

    
880
    struct AVCodec *codec;
881

    
882
    void *priv_data;
883

    
884
    /* unused, FIXME remove*/
885
    int rtp_mode;
886

    
887
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
888
                            /* do it's best to deliver a chunk with size    */
889
                            /* below rtp_payload_size, the chunk will start */
890
                            /* with a start code on some codecs like H.263  */
891
                            /* This doesn't take account of any particular  */
892
                            /* headers inside the transmited RTP payload    */
893

    
894

    
895
    /* The RTP callback: This function is called   */
896
    /* every time the encoder has a packet to send */
897
    /* Depends on the encoder if the data starts   */
898
    /* with a Start Code (it should) H.263 does.   */
899
    /* mb_nb contains the number of macroblocks    */
900
    /* encoded in the RTP payload                  */
901
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
902

    
903
    /* statistics, used for 2-pass encoding */
904
    int mv_bits;
905
    int header_bits;
906
    int i_tex_bits;
907
    int p_tex_bits;
908
    int i_count;
909
    int p_count;
910
    int skip_count;
911
    int misc_bits;
912

    
913
    /**
914
     * number of bits used for the previously encoded frame.
915
     * - encoding: set by lavc
916
     * - decoding: unused
917
     */
918
    int frame_bits;
919

    
920
    /**
921
     * private data of the user, can be used to carry app specific stuff.
922
     * - encoding: set by user
923
     * - decoding: set by user
924
     */
925
    void *opaque;
926

    
927
    char codec_name[32];
928
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
929
    enum CodecID codec_id; /* see CODEC_ID_xxx */
930

    
931
    /**
932
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
933
     * this is used to workaround some encoder bugs
934
     * - encoding: set by user, if not then the default based on codec_id will be used
935
     * - decoding: set by user, will be converted to upper case by lavc during init
936
     */
937
    unsigned int codec_tag;
938

    
939
    /**
940
     * workaround bugs in encoders which sometimes cannot be detected automatically.
941
     * - encoding: set by user
942
     * - decoding: set by user
943
     */
944
    int workaround_bugs;
945
#define FF_BUG_AUTODETECT       1  ///< autodetection
946
#define FF_BUG_OLD_MSMPEG4      2
947
#define FF_BUG_XVID_ILACE       4
948
#define FF_BUG_UMP4             8
949
#define FF_BUG_NO_PADDING       16
950
#define FF_BUG_AMV              32
951
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
952
#define FF_BUG_QPEL_CHROMA      64
953
#define FF_BUG_STD_QPEL         128
954
#define FF_BUG_QPEL_CHROMA2     256
955
#define FF_BUG_DIRECT_BLOCKSIZE 512
956
#define FF_BUG_EDGE             1024
957
#define FF_BUG_HPEL_CHROMA      2048
958
#define FF_BUG_DC_CLIP          4096
959
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
960
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
961

    
962
    /**
963
     * luma single coeff elimination threshold.
964
     * - encoding: set by user
965
     * - decoding: unused
966
     */
967
    int luma_elim_threshold;
968

    
969
    /**
970
     * chroma single coeff elimination threshold.
971
     * - encoding: set by user
972
     * - decoding: unused
973
     */
974
    int chroma_elim_threshold;
975

    
976
    /**
977
     * strictly follow the std (MPEG4, ...).
978
     * - encoding: set by user
979
     * - decoding: unused
980
     */
981
    int strict_std_compliance;
982
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
983
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
984
#define FF_COMPLIANCE_NORMAL        0
985
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
986
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
987

    
988
    /**
989
     * qscale offset between ip and b frames.
990
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
991
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
992
     * - encoding: set by user.
993
     * - decoding: unused
994
     */
995
    float b_quant_offset;
996

    
997
    /**
998
     * error resilience higher values will detect more errors but may missdetect
999
     * some more or less valid parts as errors.
1000
     * - encoding: unused
1001
     * - decoding: set by user
1002
     */
1003
    int error_resilience;
1004
#define FF_ER_CAREFUL         1
1005
#define FF_ER_COMPLIANT       2
1006
#define FF_ER_AGGRESSIVE      3
1007
#define FF_ER_VERY_AGGRESSIVE 4
1008

    
1009
    /**
1010
     * called at the beginning of each frame to get a buffer for it.
1011
     * if pic.reference is set then the frame will be read later by lavc
1012
     * avcodec_align_dimensions() should be used to find the required width and
1013
     * height, as they normally need to be rounded up to the next multiple of 16
1014
     * - encoding: unused
1015
     * - decoding: set by lavc, user can override
1016
     */
1017
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1018

    
1019
    /**
1020
     * called to release buffers which where allocated with get_buffer.
1021
     * a released buffer can be reused in get_buffer()
1022
     * pic.data[*] must be set to NULL
1023
     * - encoding: unused
1024
     * - decoding: set by lavc, user can override
1025
     */
1026
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1027

    
1028
    /**
1029
     * if 1 the stream has a 1 frame delay during decoding.
1030
     * - encoding: set by lavc
1031
     * - decoding: set by lavc
1032
     */
1033
    int has_b_frames;
1034

    
1035
    /**
1036
     * number of bytes per packet if constant and known or 0
1037
     * used by some WAV based audio codecs
1038
     */
1039
    int block_align;
1040

    
1041
    int parse_only; /* - decoding only: if true, only parsing is done
1042
                       (function avcodec_parse_frame()). The frame
1043
                       data is returned. Only MPEG codecs support this now. */
1044

    
1045
    /**
1046
     * 0-> h263 quant 1-> mpeg quant.
1047
     * - encoding: set by user.
1048
     * - decoding: unused
1049
     */
1050
    int mpeg_quant;
1051

    
1052
    /**
1053
     * pass1 encoding statistics output buffer.
1054
     * - encoding: set by lavc
1055
     * - decoding: unused
1056
     */
1057
    char *stats_out;
1058

    
1059
    /**
1060
     * pass2 encoding statistics input buffer.
1061
     * concatenated stuff from stats_out of pass1 should be placed here
1062
     * - encoding: allocated/set/freed by user
1063
     * - decoding: unused
1064
     */
1065
    char *stats_in;
1066

    
1067
    /**
1068
     * ratecontrol qmin qmax limiting method.
1069
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1070
     * - encoding: set by user.
1071
     * - decoding: unused
1072
     */
1073
    float rc_qsquish;
1074

    
1075
    float rc_qmod_amp;
1076
    int rc_qmod_freq;
1077

    
1078
    /**
1079
     * ratecontrol override, see RcOverride.
1080
     * - encoding: allocated/set/freed by user.
1081
     * - decoding: unused
1082
     */
1083
    RcOverride *rc_override;
1084
    int rc_override_count;
1085

    
1086
    /**
1087
     * rate control equation.
1088
     * - encoding: set by user
1089
     * - decoding: unused
1090
     */
1091
    char *rc_eq;
1092

    
1093
    /**
1094
     * maximum bitrate.
1095
     * - encoding: set by user.
1096
     * - decoding: unused
1097
     */
1098
    int rc_max_rate;
1099

    
1100
    /**
1101
     * minimum bitrate.
1102
     * - encoding: set by user.
1103
     * - decoding: unused
1104
     */
1105
    int rc_min_rate;
1106

    
1107
    /**
1108
     * decoder bitstream buffer size.
1109
     * - encoding: set by user.
1110
     * - decoding: unused
1111
     */
1112
    int rc_buffer_size;
1113
    float rc_buffer_aggressivity;
1114

    
1115
    /**
1116
     * qscale factor between p and i frames.
1117
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1118
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1119
     * - encoding: set by user.
1120
     * - decoding: unused
1121
     */
1122
    float i_quant_factor;
1123

    
1124
    /**
1125
     * qscale offset between p and i frames.
1126
     * - encoding: set by user.
1127
     * - decoding: unused
1128
     */
1129
    float i_quant_offset;
1130

    
1131
    /**
1132
     * initial complexity for pass1 ratecontrol.
1133
     * - encoding: set by user.
1134
     * - decoding: unused
1135
     */
1136
    float rc_initial_cplx;
1137

    
1138
    /**
1139
     * dct algorithm, see FF_DCT_* below.
1140
     * - encoding: set by user
1141
     * - decoding: unused
1142
     */
1143
    int dct_algo;
1144
#define FF_DCT_AUTO    0
1145
#define FF_DCT_FASTINT 1
1146
#define FF_DCT_INT     2
1147
#define FF_DCT_MMX     3
1148
#define FF_DCT_MLIB    4
1149
#define FF_DCT_ALTIVEC 5
1150
#define FF_DCT_FAAN    6
1151

    
1152
    /**
1153
     * luminance masking (0-> disabled).
1154
     * - encoding: set by user
1155
     * - decoding: unused
1156
     */
1157
    float lumi_masking;
1158

    
1159
    /**
1160
     * temporary complexity masking (0-> disabled).
1161
     * - encoding: set by user
1162
     * - decoding: unused
1163
     */
1164
    float temporal_cplx_masking;
1165

    
1166
    /**
1167
     * spatial complexity masking (0-> disabled).
1168
     * - encoding: set by user
1169
     * - decoding: unused
1170
     */
1171
    float spatial_cplx_masking;
1172

    
1173
    /**
1174
     * p block masking (0-> disabled).
1175
     * - encoding: set by user
1176
     * - decoding: unused
1177
     */
1178
    float p_masking;
1179

    
1180
    /**
1181
     * darkness masking (0-> disabled).
1182
     * - encoding: set by user
1183
     * - decoding: unused
1184
     */
1185
    float dark_masking;
1186

    
1187

    
1188
    /* for binary compatibility */
1189
    int unused;
1190

    
1191
    /**
1192
     * idct algorithm, see FF_IDCT_* below.
1193
     * - encoding: set by user
1194
     * - decoding: set by user
1195
     */
1196
    int idct_algo;
1197
#define FF_IDCT_AUTO         0
1198
#define FF_IDCT_INT          1
1199
#define FF_IDCT_SIMPLE       2
1200
#define FF_IDCT_SIMPLEMMX    3
1201
#define FF_IDCT_LIBMPEG2MMX  4
1202
#define FF_IDCT_PS2          5
1203
#define FF_IDCT_MLIB         6
1204
#define FF_IDCT_ARM          7
1205
#define FF_IDCT_ALTIVEC      8
1206
#define FF_IDCT_SH4          9
1207
#define FF_IDCT_SIMPLEARM    10
1208
#define FF_IDCT_H264         11
1209
#define FF_IDCT_VP3          12
1210
#define FF_IDCT_IPP          13
1211
#define FF_IDCT_XVIDMMX      14
1212

    
1213
    /**
1214
     * slice count.
1215
     * - encoding: set by lavc
1216
     * - decoding: set by user (or 0)
1217
     */
1218
    int slice_count;
1219
    /**
1220
     * slice offsets in the frame in bytes.
1221
     * - encoding: set/allocated by lavc
1222
     * - decoding: set/allocated by user (or NULL)
1223
     */
1224
    int *slice_offset;
1225

    
1226
    /**
1227
     * error concealment flags.
1228
     * - encoding: unused
1229
     * - decoding: set by user
1230
     */
1231
    int error_concealment;
1232
#define FF_EC_GUESS_MVS   1
1233
#define FF_EC_DEBLOCK     2
1234

    
1235
    /**
1236
     * dsp_mask could be add used to disable unwanted CPU features
1237
     * CPU features (i.e. MMX, SSE. ...)
1238
     *
1239
     * with FORCE flag you may instead enable given CPU features
1240
     * (Dangerous: usable in case of misdetection, improper usage however will
1241
     * result into program crash)
1242
     */
1243
    unsigned dsp_mask;
1244
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1245
    /* lower 16 bits - CPU features */
1246
#ifdef HAVE_MMX
1247
#define FF_MM_MMX      0x0001 /* standard MMX */
1248
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1249
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1250
#define FF_MM_SSE      0x0008 /* SSE functions */
1251
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1252
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1253
#endif /* HAVE_MMX */
1254
#ifdef HAVE_IWMMXT
1255
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1256
#endif /* HAVE_IWMMXT */
1257

    
1258
    /**
1259
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1260
     * - encoding: set by lavc
1261
     * - decoding: set by user
1262
     */
1263
     int bits_per_sample;
1264

    
1265
    /**
1266
     * prediction method (needed for huffyuv).
1267
     * - encoding: set by user
1268
     * - decoding: unused
1269
     */
1270
     int prediction_method;
1271
#define FF_PRED_LEFT   0
1272
#define FF_PRED_PLANE  1
1273
#define FF_PRED_MEDIAN 2
1274

    
1275
    /**
1276
     * sample aspect ratio (0 if unknown).
1277
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1278
     * - encoding: set by user.
1279
     * - decoding: set by lavc.
1280
     */
1281
    AVRational sample_aspect_ratio;
1282

    
1283
    /**
1284
     * the picture in the bitstream.
1285
     * - encoding: set by lavc
1286
     * - decoding: set by lavc
1287
     */
1288
    AVFrame *coded_frame;
1289

    
1290
    /**
1291
     * debug.
1292
     * - encoding: set by user.
1293
     * - decoding: set by user.
1294
     */
1295
    int debug;
1296
#define FF_DEBUG_PICT_INFO 1
1297
#define FF_DEBUG_RC        2
1298
#define FF_DEBUG_BITSTREAM 4
1299
#define FF_DEBUG_MB_TYPE   8
1300
#define FF_DEBUG_QP        16
1301
#define FF_DEBUG_MV        32
1302
#define FF_DEBUG_DCT_COEFF 0x00000040
1303
#define FF_DEBUG_SKIP      0x00000080
1304
#define FF_DEBUG_STARTCODE 0x00000100
1305
#define FF_DEBUG_PTS       0x00000200
1306
#define FF_DEBUG_ER        0x00000400
1307
#define FF_DEBUG_MMCO      0x00000800
1308
#define FF_DEBUG_BUGS      0x00001000
1309
#define FF_DEBUG_VIS_QP    0x00002000
1310
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1311

    
1312
    /**
1313
     * debug.
1314
     * - encoding: set by user.
1315
     * - decoding: set by user.
1316
     */
1317
    int debug_mv;
1318
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1319
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1320
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1321

    
1322
    /**
1323
     * error.
1324
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1325
     * - decoding: unused
1326
     */
1327
    uint64_t error[4];
1328

    
1329
    /**
1330
     * minimum MB quantizer.
1331
     * - encoding: unused
1332
     * - decoding: unused
1333
     */
1334
    int mb_qmin;
1335

    
1336
    /**
1337
     * maximum MB quantizer.
1338
     * - encoding: unused
1339
     * - decoding: unused
1340
     */
1341
    int mb_qmax;
1342

    
1343
    /**
1344
     * motion estimation compare function.
1345
     * - encoding: set by user.
1346
     * - decoding: unused
1347
     */
1348
    int me_cmp;
1349
    /**
1350
     * subpixel motion estimation compare function.
1351
     * - encoding: set by user.
1352
     * - decoding: unused
1353
     */
1354
    int me_sub_cmp;
1355
    /**
1356
     * macroblock compare function (not supported yet).
1357
     * - encoding: set by user.
1358
     * - decoding: unused
1359
     */
1360
    int mb_cmp;
1361
    /**
1362
     * interlaced dct compare function
1363
     * - encoding: set by user.
1364
     * - decoding: unused
1365
     */
1366
    int ildct_cmp;
1367
#define FF_CMP_SAD  0
1368
#define FF_CMP_SSE  1
1369
#define FF_CMP_SATD 2
1370
#define FF_CMP_DCT  3
1371
#define FF_CMP_PSNR 4
1372
#define FF_CMP_BIT  5
1373
#define FF_CMP_RD   6
1374
#define FF_CMP_ZERO 7
1375
#define FF_CMP_VSAD 8
1376
#define FF_CMP_VSSE 9
1377
#define FF_CMP_NSSE 10
1378
#define FF_CMP_W53  11
1379
#define FF_CMP_W97  12
1380
#define FF_CMP_DCTMAX 13
1381
#define FF_CMP_DCT264 14
1382
#define FF_CMP_CHROMA 256
1383

    
1384
    /**
1385
     * ME diamond size & shape.
1386
     * - encoding: set by user.
1387
     * - decoding: unused
1388
     */
1389
    int dia_size;
1390

    
1391
    /**
1392
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1393
     * - encoding: set by user.
1394
     * - decoding: unused
1395
     */
1396
    int last_predictor_count;
1397

    
1398
    /**
1399
     * pre pass for motion estimation.
1400
     * - encoding: set by user.
1401
     * - decoding: unused
1402
     */
1403
    int pre_me;
1404

    
1405
    /**
1406
     * motion estimation pre pass compare function.
1407
     * - encoding: set by user.
1408
     * - decoding: unused
1409
     */
1410
    int me_pre_cmp;
1411

    
1412
    /**
1413
     * ME pre pass diamond size & shape.
1414
     * - encoding: set by user.
1415
     * - decoding: unused
1416
     */
1417
    int pre_dia_size;
1418

    
1419
    /**
1420
     * subpel ME quality.
1421
     * - encoding: set by user.
1422
     * - decoding: unused
1423
     */
1424
    int me_subpel_quality;
1425

    
1426
    /**
1427
     * callback to negotiate the pixelFormat.
1428
     * @param fmt is the list of formats which are supported by the codec,
1429
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1430
     * the first is allways the native one
1431
     * @return the choosen format
1432
     * - encoding: unused
1433
     * - decoding: set by user, if not set then the native format will always be choosen
1434
     */
1435
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1436

    
1437
    /**
1438
     * DTG active format information (additionnal aspect ratio
1439
     * information only used in DVB MPEG2 transport streams). 0 if
1440
     * not set.
1441
     *
1442
     * - encoding: unused.
1443
     * - decoding: set by decoder
1444
     */
1445
    int dtg_active_format;
1446
#define FF_DTG_AFD_SAME         8
1447
#define FF_DTG_AFD_4_3          9
1448
#define FF_DTG_AFD_16_9         10
1449
#define FF_DTG_AFD_14_9         11
1450
#define FF_DTG_AFD_4_3_SP_14_9  13
1451
#define FF_DTG_AFD_16_9_SP_14_9 14
1452
#define FF_DTG_AFD_SP_4_3       15
1453

    
1454
    /**
1455
     * Maximum motion estimation search range in subpel units.
1456
     * if 0 then no limit
1457
     *
1458
     * - encoding: set by user.
1459
     * - decoding: unused.
1460
     */
1461
    int me_range;
1462

    
1463
    /**
1464
     * intra quantizer bias.
1465
     * - encoding: set by user.
1466
     * - decoding: unused
1467
     */
1468
    int intra_quant_bias;
1469
#define FF_DEFAULT_QUANT_BIAS 999999
1470

    
1471
    /**
1472
     * inter quantizer bias.
1473
     * - encoding: set by user.
1474
     * - decoding: unused
1475
     */
1476
    int inter_quant_bias;
1477

    
1478
    /**
1479
     * color table ID.
1480
     * - encoding: unused.
1481
     * - decoding: which clrtable should be used for 8bit RGB images
1482
     *             table have to be stored somewhere FIXME
1483
     */
1484
    int color_table_id;
1485

    
1486
    /**
1487
     * internal_buffer count.
1488
     * Don't touch, used by lavc default_get_buffer()
1489
     */
1490
    int internal_buffer_count;
1491

    
1492
    /**
1493
     * internal_buffers.
1494
     * Don't touch, used by lavc default_get_buffer()
1495
     */
1496
    void *internal_buffer;
1497

    
1498
#define FF_LAMBDA_SHIFT 7
1499
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1500
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1501
#define FF_LAMBDA_MAX (256*128-1)
1502

    
1503
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1504
    /**
1505
     * global quality for codecs which cannot change it per frame.
1506
     * this should be proportional to MPEG1/2/4 qscale.
1507
     * - encoding: set by user.
1508
     * - decoding: unused
1509
     */
1510
    int global_quality;
1511

    
1512
#define FF_CODER_TYPE_VLC   0
1513
#define FF_CODER_TYPE_AC    1
1514
    /**
1515
     * coder type
1516
     * - encoding: set by user.
1517
     * - decoding: unused
1518
     */
1519
    int coder_type;
1520

    
1521
    /**
1522
     * context model
1523
     * - encoding: set by user.
1524
     * - decoding: unused
1525
     */
1526
    int context_model;
1527
#if 0
1528
    /**
1529
     *
1530
     * - encoding: unused
1531
     * - decoding: set by user.
1532
     */
1533
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1534
#endif
1535

    
1536
    /**
1537
     * slice flags
1538
     * - encoding: unused
1539
     * - decoding: set by user.
1540
     */
1541
    int slice_flags;
1542
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1543
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1544
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1545

    
1546
    /**
1547
     * XVideo Motion Acceleration
1548
     * - encoding: forbidden
1549
     * - decoding: set by decoder
1550
     */
1551
    int xvmc_acceleration;
1552

    
1553
    /**
1554
     * macroblock decision mode
1555
     * - encoding: set by user.
1556
     * - decoding: unused
1557
     */
1558
    int mb_decision;
1559
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1560
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1561
#define FF_MB_DECISION_RD     2        ///< rate distoration
1562

    
1563
    /**
1564
     * custom intra quantization matrix
1565
     * - encoding: set by user, can be NULL
1566
     * - decoding: set by lavc
1567
     */
1568
    uint16_t *intra_matrix;
1569

    
1570
    /**
1571
     * custom inter quantization matrix
1572
     * - encoding: set by user, can be NULL
1573
     * - decoding: set by lavc
1574
     */
1575
    uint16_t *inter_matrix;
1576

    
1577
    /**
1578
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1579
     * this is used to workaround some encoder bugs
1580
     * - encoding: unused
1581
     * - decoding: set by user, will be converted to upper case by lavc during init
1582
     */
1583
    unsigned int stream_codec_tag;
1584

    
1585
    /**
1586
     * scene change detection threshold.
1587
     * 0 is default, larger means fewer detected scene changes
1588
     * - encoding: set by user.
1589
     * - decoding: unused
1590
     */
1591
    int scenechange_threshold;
1592

    
1593
    /**
1594
     * minimum lagrange multipler
1595
     * - encoding: set by user.
1596
     * - decoding: unused
1597
     */
1598
    int lmin;
1599

    
1600
    /**
1601
     * maximum lagrange multipler
1602
     * - encoding: set by user.
1603
     * - decoding: unused
1604
     */
1605
    int lmax;
1606

    
1607
    /**
1608
     * Palette control structure
1609
     * - encoding: ??? (no palette-enabled encoder yet)
1610
     * - decoding: set by user.
1611
     */
1612
    struct AVPaletteControl *palctrl;
1613

    
1614
    /**
1615
     * noise reduction strength
1616
     * - encoding: set by user.
1617
     * - decoding: unused
1618
     */
1619
    int noise_reduction;
1620

    
1621
    /**
1622
     * called at the beginning of a frame to get cr buffer for it.
1623
     * buffer type (size, hints) must be the same. lavc won't check it.
1624
     * lavc will pass previous buffer in pic, function should return
1625
     * same buffer or new buffer with old frame "painted" into it.
1626
     * if pic.data[0] == NULL must behave like get_buffer().
1627
     * - encoding: unused
1628
     * - decoding: set by lavc, user can override
1629
     */
1630
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1631

    
1632
    /**
1633
     * number of bits which should be loaded into the rc buffer before decoding starts
1634
     * - encoding: set by user.
1635
     * - decoding: unused
1636
     */
1637
    int rc_initial_buffer_occupancy;
1638

    
1639
    /**
1640
     *
1641
     * - encoding: set by user.
1642
     * - decoding: unused
1643
     */
1644
    int inter_threshold;
1645

    
1646
    /**
1647
     * CODEC_FLAG2_*.
1648
     * - encoding: set by user.
1649
     * - decoding: set by user.
1650
     */
1651
    int flags2;
1652

    
1653
    /**
1654
     * simulates errors in the bitstream to test error concealment.
1655
     * - encoding: set by user.
1656
     * - decoding: unused.
1657
     */
1658
    int error_rate;
1659

    
1660
    /**
1661
     * MP3 antialias algorithm, see FF_AA_* below.
1662
     * - encoding: unused
1663
     * - decoding: set by user
1664
     */
1665
    int antialias_algo;
1666
#define FF_AA_AUTO    0
1667
#define FF_AA_FASTINT 1 //not implemented yet
1668
#define FF_AA_INT     2
1669
#define FF_AA_FLOAT   3
1670
    /**
1671
     * Quantizer noise shaping.
1672
     * - encoding: set by user
1673
     * - decoding: unused
1674
     */
1675
    int quantizer_noise_shaping;
1676

    
1677
    /**
1678
     * Thread count.
1679
     * is used to decide how many independant tasks should be passed to execute()
1680
     * - encoding: set by user
1681
     * - decoding: set by user
1682
     */
1683
    int thread_count;
1684

    
1685
    /**
1686
     * the codec may call this to execute several independant things. it will return only after
1687
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1688
     * default implementation will execute the parts serially
1689
     * @param count the number of things to execute
1690
     * - encoding: set by lavc, user can override
1691
     * - decoding: set by lavc, user can override
1692
     */
1693
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1694

    
1695
    /**
1696
     * Thread opaque.
1697
     * can be used by execute() to store some per AVCodecContext stuff.
1698
     * - encoding: set by execute()
1699
     * - decoding: set by execute()
1700
     */
1701
    void *thread_opaque;
1702

    
1703
    /**
1704
     * Motion estimation threshold. under which no motion estimation is
1705
     * performed, but instead the user specified motion vectors are used
1706
     *
1707
     * - encoding: set by user
1708
     * - decoding: unused
1709
     */
1710
     int me_threshold;
1711

    
1712
    /**
1713
     * Macroblock threshold. under which the user specified macroblock types will be used
1714
     * - encoding: set by user
1715
     * - decoding: unused
1716
     */
1717
     int mb_threshold;
1718

    
1719
    /**
1720
     * precision of the intra dc coefficient - 8.
1721
     * - encoding: set by user
1722
     * - decoding: unused
1723
     */
1724
     int intra_dc_precision;
1725

    
1726
    /**
1727
     * noise vs. sse weight for the nsse comparsion function.
1728
     * - encoding: set by user
1729
     * - decoding: unused
1730
     */
1731
     int nsse_weight;
1732

    
1733
    /**
1734
     * number of macroblock rows at the top which are skipped.
1735
     * - encoding: unused
1736
     * - decoding: set by user
1737
     */
1738
     int skip_top;
1739

    
1740
    /**
1741
     * number of macroblock rows at the bottom which are skipped.
1742
     * - encoding: unused
1743
     * - decoding: set by user
1744
     */
1745
     int skip_bottom;
1746

    
1747
    /**
1748
     * profile
1749
     * - encoding: set by user
1750
     * - decoding: set by lavc
1751
     */
1752
     int profile;
1753
#define FF_PROFILE_UNKNOWN -99
1754

    
1755
    /**
1756
     * level
1757
     * - encoding: set by user
1758
     * - decoding: set by lavc
1759
     */
1760
     int level;
1761
#define FF_LEVEL_UNKNOWN -99
1762

    
1763
    /**
1764
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1765
     * - encoding: unused
1766
     * - decoding: set by user
1767
     */
1768
     int lowres;
1769

    
1770
    /**
1771
     * bitsream width / height. may be different from width/height if lowres
1772
     * or other things are used
1773
     * - encoding: unused
1774
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1775
     */
1776
    int coded_width, coded_height;
1777

    
1778
    /**
1779
     * frame skip threshold
1780
     * - encoding: set by user
1781
     * - decoding: unused
1782
     */
1783
    int frame_skip_threshold;
1784

    
1785
    /**
1786
     * frame skip factor
1787
     * - encoding: set by user
1788
     * - decoding: unused
1789
     */
1790
    int frame_skip_factor;
1791

    
1792
    /**
1793
     * frame skip exponent
1794
     * - encoding: set by user
1795
     * - decoding: unused
1796
     */
1797
    int frame_skip_exp;
1798

    
1799
    /**
1800
     * frame skip comparission function
1801
     * - encoding: set by user.
1802
     * - decoding: unused
1803
     */
1804
    int frame_skip_cmp;
1805

    
1806
    /**
1807
     * border processing masking. raises the quantizer for mbs on the borders
1808
     * of the picture.
1809
     * - encoding: set by user
1810
     * - decoding: unused
1811
     */
1812
    float border_masking;
1813

    
1814
    /**
1815
     * minimum MB lagrange multipler.
1816
     * - encoding: set by user.
1817
     * - decoding: unused
1818
     */
1819
    int mb_lmin;
1820

    
1821
    /**
1822
     * maximum MB lagrange multipler.
1823
     * - encoding: set by user.
1824
     * - decoding: unused
1825
     */
1826
    int mb_lmax;
1827

    
1828
    /**
1829
     *
1830
     * - encoding: set by user.
1831
     * - decoding: unused
1832
     */
1833
    int me_penalty_compensation;
1834

    
1835
    /**
1836
     *
1837
     * - encoding: unused
1838
     * - decoding: set by user.
1839
     */
1840
    enum AVDiscard skip_loop_filter;
1841

    
1842
    /**
1843
     *
1844
     * - encoding: unused
1845
     * - decoding: set by user.
1846
     */
1847
    enum AVDiscard skip_idct;
1848

    
1849
    /**
1850
     *
1851
     * - encoding: unused
1852
     * - decoding: set by user.
1853
     */
1854
    enum AVDiscard skip_frame;
1855

    
1856
    /**
1857
     *
1858
     * - encoding: set by user.
1859
     * - decoding: unused
1860
     */
1861
    int bidir_refine;
1862

    
1863
    /**
1864
     *
1865
     * - encoding: set by user.
1866
     * - decoding: unused
1867
     */
1868
    int brd_scale;
1869

    
1870
    /**
1871
     * constant rate factor - quality-based VBR - values ~correspond to qps
1872
     * - encoding: set by user.
1873
     * - decoding: unused
1874
     */
1875
    int crf;
1876

    
1877
    /**
1878
     * constant quantization parameter rate control method
1879
     * - encoding: set by user.
1880
     * - decoding: unused
1881
     */
1882
    int cqp;
1883

    
1884
    /**
1885
     * minimum gop size
1886
     * - encoding: set by user.
1887
     * - decoding: unused
1888
     */
1889
    int keyint_min;
1890

    
1891
    /**
1892
     * number of reference frames
1893
     * - encoding: set by user.
1894
     * - decoding: unused
1895
     */
1896
    int refs;
1897

    
1898
    /**
1899
     * chroma qp offset from luma
1900
     * - encoding: set by user.
1901
     * - decoding: unused
1902
     */
1903
    int chromaoffset;
1904

    
1905
    /**
1906
     * influences how often b-frames are used
1907
     * - encoding: set by user.
1908
     * - decoding: unused
1909
     */
1910
    int bframebias;
1911

    
1912
    /**
1913
     * trellis RD quantization
1914
     * - encoding: set by user.
1915
     * - decoding: unused
1916
     */
1917
    int trellis;
1918

    
1919
    /**
1920
     * reduce fluctuations in qp (before curve compression)
1921
     * - encoding: set by user.
1922
     * - decoding: unused
1923
     */
1924
    float complexityblur;
1925

    
1926
    /**
1927
     * in-loop deblocking filter alphac0 parameter
1928
     * alpha is in the range -6...6
1929
     * - encoding: set by user.
1930
     * - decoding: unused
1931
     */
1932
    int deblockalpha;
1933

    
1934
    /**
1935
     * in-loop deblocking filter beta parameter
1936
     * beta is in the range -6...6
1937
     * - encoding: set by user.
1938
     * - decoding: unused
1939
     */
1940
    int deblockbeta;
1941

    
1942
    /**
1943
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1944
     * - encoding: set by user.
1945
     * - decoding: unused
1946
     */
1947
    int partitions;
1948
#define X264_PART_I4X4 0x001  /* Analyse i4x4 */
1949
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
1950
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
1951
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
1952
#define X264_PART_B8X8 0x100  /* Analyse b16x8, b8x16 and b8x8 */
1953

    
1954
    /**
1955
     * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1956
     * - encoding: set by user.
1957
     * - decoding: unused
1958
     */
1959
    int directpred;
1960

    
1961
    /**
1962
     * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1963
     * - encoding: set by user.
1964
     * - decoding: unused
1965
     */
1966
    int cutoff;
1967

    
1968
    /**
1969
     * multiplied by qscale for each frame and added to scene_change_score
1970
     * - encoding: set by user.
1971
     * - decoding: unused
1972
     */
1973
    int scenechange_factor;
1974

    
1975
    /**
1976
     *
1977
     * note: value depends upon the compare functin used for fullpel ME
1978
     * - encoding: set by user.
1979
     * - decoding: unused
1980
     */
1981
    int mv0_threshold;
1982

    
1983
    /**
1984
     * adjusts sensitivity of b_frame_strategy 1
1985
     * - encoding: set by user.
1986
     * - decoding: unused
1987
     */
1988
    int b_sensitivity;
1989
} AVCodecContext;
1990

    
1991
/**
1992
 * AVCodec.
1993
 */
1994
typedef struct AVCodec {
1995
    const char *name;
1996
    enum CodecType type;
1997
    enum CodecID id;
1998
    int priv_data_size;
1999
    int (*init)(AVCodecContext *);
2000
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
2001
    int (*close)(AVCodecContext *);
2002
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
2003
                  uint8_t *buf, int buf_size);
2004
    int capabilities;
2005
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
2006
    void *dummy; // FIXME remove next time we break binary compatibility
2007
#endif
2008
    struct AVCodec *next;
2009
    void (*flush)(AVCodecContext *);
2010
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
2011
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
2012
} AVCodec;
2013

    
2014
/**
2015
 * four components are given, that's all.
2016
 * the last component is alpha
2017
 */
2018
typedef struct AVPicture {
2019
    uint8_t *data[4];
2020
    int linesize[4];       ///< number of bytes per line
2021
} AVPicture;
2022

    
2023
/**
2024
 * AVPaletteControl
2025
 * This structure defines a method for communicating palette changes
2026
 * between and demuxer and a decoder.
2027
 */
2028
#define AVPALETTE_SIZE 1024
2029
#define AVPALETTE_COUNT 256
2030
typedef struct AVPaletteControl {
2031

    
2032
    /* demuxer sets this to 1 to indicate the palette has changed;
2033
     * decoder resets to 0 */
2034
    int palette_changed;
2035

    
2036
    /* 4-byte ARGB palette entries, stored in native byte order; note that
2037
     * the individual palette components should be on a 8-bit scale; if
2038
     * the palette data comes from a IBM VGA native format, the component
2039
     * data is probably 6 bits in size and needs to be scaled */
2040
    unsigned int palette[AVPALETTE_COUNT];
2041

    
2042
} AVPaletteControl;
2043

    
2044
typedef struct AVSubtitleRect {
2045
    uint16_t x;
2046
    uint16_t y;
2047
    uint16_t w;
2048
    uint16_t h;
2049
    uint16_t nb_colors;
2050
    int linesize;
2051
    uint32_t *rgba_palette;
2052
    uint8_t *bitmap;
2053
} AVSubtitleRect;
2054

    
2055
typedef struct AVSubtitle {
2056
    uint16_t format; /* 0 = graphics */
2057
    uint32_t start_display_time; /* relative to packet pts, in ms */
2058
    uint32_t end_display_time; /* relative to packet pts, in ms */
2059
    uint32_t num_rects;
2060
    AVSubtitleRect *rects;
2061
} AVSubtitle;
2062

    
2063
extern AVCodec ac3_encoder;
2064
extern AVCodec mp2_encoder;
2065
extern AVCodec mp3lame_encoder;
2066
extern AVCodec oggvorbis_encoder;
2067
extern AVCodec oggtheora_encoder;
2068
extern AVCodec faac_encoder;
2069
extern AVCodec flac_encoder;
2070
extern AVCodec xvid_encoder;
2071
extern AVCodec mpeg1video_encoder;
2072
extern AVCodec mpeg2video_encoder;
2073
extern AVCodec h261_encoder;
2074
extern AVCodec h263_encoder;
2075
extern AVCodec h263p_encoder;
2076
extern AVCodec flv_encoder;
2077
extern AVCodec rv10_encoder;
2078
extern AVCodec rv20_encoder;
2079
extern AVCodec dvvideo_encoder;
2080
extern AVCodec mjpeg_encoder;
2081
extern AVCodec ljpeg_encoder;
2082
extern AVCodec jpegls_encoder;
2083
extern AVCodec png_encoder;
2084
extern AVCodec ppm_encoder;
2085
extern AVCodec pgm_encoder;
2086
extern AVCodec pgmyuv_encoder;
2087
extern AVCodec pbm_encoder;
2088
extern AVCodec pam_encoder;
2089
extern AVCodec mpeg4_encoder;
2090
extern AVCodec msmpeg4v1_encoder;
2091
extern AVCodec msmpeg4v2_encoder;
2092
extern AVCodec msmpeg4v3_encoder;
2093
extern AVCodec wmv1_encoder;
2094
extern AVCodec wmv2_encoder;
2095
extern AVCodec huffyuv_encoder;
2096
extern AVCodec ffvhuff_encoder;
2097
extern AVCodec h264_encoder;
2098
extern AVCodec asv1_encoder;
2099
extern AVCodec asv2_encoder;
2100
extern AVCodec vcr1_encoder;
2101
extern AVCodec ffv1_encoder;
2102
extern AVCodec snow_encoder;
2103
extern AVCodec mdec_encoder;
2104
extern AVCodec zlib_encoder;
2105
extern AVCodec sonic_encoder;
2106
extern AVCodec sonic_ls_encoder;
2107
extern AVCodec svq1_encoder;
2108
extern AVCodec x264_encoder;
2109

    
2110
extern AVCodec h263_decoder;
2111
extern AVCodec h261_decoder;
2112
extern AVCodec mpeg4_decoder;
2113
extern AVCodec msmpeg4v1_decoder;
2114
extern AVCodec msmpeg4v2_decoder;
2115
extern AVCodec msmpeg4v3_decoder;
2116
extern AVCodec wmv1_decoder;
2117
extern AVCodec wmv2_decoder;
2118
extern AVCodec vc9_decoder;
2119
extern AVCodec wmv3_decoder;
2120
extern AVCodec mpeg1video_decoder;
2121
extern AVCodec mpeg2video_decoder;
2122
extern AVCodec mpegvideo_decoder;
2123
extern AVCodec mpeg_xvmc_decoder;
2124
extern AVCodec h263i_decoder;
2125
extern AVCodec flv_decoder;
2126
extern AVCodec rv10_decoder;
2127
extern AVCodec rv20_decoder;
2128
extern AVCodec rv30_decoder;
2129
extern AVCodec rv40_decoder;
2130
extern AVCodec svq1_decoder;
2131
extern AVCodec svq3_decoder;
2132
extern AVCodec dvvideo_decoder;
2133
extern AVCodec wmav1_decoder;
2134
extern AVCodec wmav2_decoder;
2135
extern AVCodec mjpeg_decoder;
2136
extern AVCodec mjpegb_decoder;
2137
extern AVCodec sp5x_decoder;
2138
extern AVCodec png_decoder;
2139
extern AVCodec mp2_decoder;
2140
extern AVCodec mp3_decoder;
2141
extern AVCodec mp3adu_decoder;
2142
extern AVCodec mp3on4_decoder;
2143
extern AVCodec qdm2_decoder;
2144
extern AVCodec cook_decoder;
2145
extern AVCodec truespeech_decoder;
2146
extern AVCodec tta_decoder;
2147
extern AVCodec mace3_decoder;
2148
extern AVCodec mace6_decoder;
2149
extern AVCodec huffyuv_decoder;
2150
extern AVCodec ffvhuff_decoder;
2151
extern AVCodec oggvorbis_decoder;
2152
extern AVCodec oggtheora_decoder;
2153
extern AVCodec cyuv_decoder;
2154
extern AVCodec h264_decoder;
2155
extern AVCodec indeo3_decoder;
2156
extern AVCodec vp3_decoder;
2157
extern AVCodec theora_decoder;
2158
extern AVCodec amr_nb_decoder;
2159
extern AVCodec amr_nb_encoder;
2160
extern AVCodec amr_wb_encoder;
2161
extern AVCodec amr_wb_decoder;
2162
extern AVCodec aac_decoder;
2163
extern AVCodec mpeg4aac_decoder;
2164
extern AVCodec asv1_decoder;
2165
extern AVCodec asv2_decoder;
2166
extern AVCodec vcr1_decoder;
2167
extern AVCodec cljr_decoder;
2168
extern AVCodec ffv1_decoder;
2169
extern AVCodec snow_decoder;
2170
extern AVCodec fourxm_decoder;
2171
extern AVCodec mdec_decoder;
2172
extern AVCodec roq_decoder;
2173
extern AVCodec interplay_video_decoder;
2174
extern AVCodec xan_wc3_decoder;
2175
extern AVCodec rpza_decoder;
2176
extern AVCodec cinepak_decoder;
2177
extern AVCodec msrle_decoder;
2178
extern AVCodec msvideo1_decoder;
2179
extern AVCodec vqa_decoder;
2180
extern AVCodec idcin_decoder;
2181
extern AVCodec eightbps_decoder;
2182
extern AVCodec smc_decoder;
2183
extern AVCodec flic_decoder;
2184
extern AVCodec vmdvideo_decoder;
2185
extern AVCodec vmdaudio_decoder;
2186
extern AVCodec truemotion1_decoder;
2187
extern AVCodec truemotion2_decoder;
2188
extern AVCodec mszh_decoder;
2189
extern AVCodec zlib_decoder;
2190
extern AVCodec ra_144_decoder;
2191
extern AVCodec ra_288_decoder;
2192
extern AVCodec roq_dpcm_decoder;
2193
extern AVCodec interplay_dpcm_decoder;
2194
extern AVCodec xan_dpcm_decoder;
2195
extern AVCodec sol_dpcm_decoder;
2196
extern AVCodec sonic_decoder;
2197
extern AVCodec qtrle_decoder;
2198
extern AVCodec flac_decoder;
2199
extern AVCodec tscc_decoder;
2200
extern AVCodec cscd_decoder;
2201
extern AVCodec nuv_decoder;
2202
extern AVCodec ulti_decoder;
2203
extern AVCodec qdraw_decoder;
2204
extern AVCodec xl_decoder;
2205
extern AVCodec qpeg_decoder;
2206
extern AVCodec shorten_decoder;
2207
extern AVCodec loco_decoder;
2208
extern AVCodec wnv1_decoder;
2209
extern AVCodec aasc_decoder;
2210
extern AVCodec alac_decoder;
2211
extern AVCodec ws_snd1_decoder;
2212
extern AVCodec indeo2_decoder;
2213
extern AVCodec vorbis_decoder;
2214
extern AVCodec fraps_decoder;
2215
extern AVCodec libgsm_encoder;
2216
extern AVCodec libgsm_decoder;
2217
extern AVCodec bmp_decoder;
2218
extern AVCodec mmvideo_decoder;
2219
extern AVCodec zmbv_decoder;
2220
extern AVCodec avs_decoder;
2221
extern AVCodec smacker_decoder;
2222
extern AVCodec smackaud_decoder;
2223
extern AVCodec kmvc_decoder;
2224
extern AVCodec flashsv_decoder;
2225

    
2226
/* pcm codecs */
2227
#define PCM_CODEC(id, name) \
2228
extern AVCodec name ## _decoder; \
2229
extern AVCodec name ## _encoder
2230

    
2231
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2232
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2233
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2234
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2235
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2236
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2237
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2238
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2239
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2240
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2241
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2242
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2243
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2244
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2245
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2246
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2247
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2248

    
2249
/* adpcm codecs */
2250

    
2251
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2252
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2253
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2254
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2255
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2256
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2257
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2258
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2259
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2260
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2261
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2262
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2263
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2264
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2265
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2266
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
2267
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
2268
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
2269

    
2270
#undef PCM_CODEC
2271

    
2272
/* dummy raw video codec */
2273
extern AVCodec rawvideo_encoder;
2274
extern AVCodec rawvideo_decoder;
2275

    
2276
/* the following codecs use external GPL libs */
2277
extern AVCodec ac3_decoder;
2278
extern AVCodec dts_decoder;
2279

    
2280
/* subtitles */
2281
extern AVCodec dvdsub_encoder;
2282
extern AVCodec dvdsub_decoder;
2283
extern AVCodec dvbsub_encoder;
2284
extern AVCodec dvbsub_decoder;
2285

    
2286
/* resample.c */
2287

    
2288
struct ReSampleContext;
2289
struct AVResampleContext;
2290

    
2291
typedef struct ReSampleContext ReSampleContext;
2292

    
2293
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2294
                                     int output_rate, int input_rate);
2295
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2296
void audio_resample_close(ReSampleContext *s);
2297

    
2298
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2299
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2300
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2301
void av_resample_close(struct AVResampleContext *c);
2302

    
2303
/* YUV420 format is assumed ! */
2304

    
2305
struct ImgReSampleContext;
2306

    
2307
typedef struct ImgReSampleContext ImgReSampleContext;
2308

    
2309
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2310
                                      int input_width, int input_height);
2311

    
2312
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2313
                                      int iwidth, int iheight,
2314
                                      int topBand, int bottomBand,
2315
                                      int leftBand, int rightBand,
2316
                                      int padtop, int padbottom,
2317
                                      int padleft, int padright);
2318

    
2319

    
2320
void img_resample(ImgReSampleContext *s,
2321
                  AVPicture *output, const AVPicture *input);
2322

    
2323
void img_resample_close(ImgReSampleContext *s);
2324

    
2325
/**
2326
 * Allocate memory for a picture.  Call avpicture_free to free it.
2327
 *
2328
 * @param picture the picture to be filled in.
2329
 * @param pix_fmt the format of the picture.
2330
 * @param width the width of the picture.
2331
 * @param height the height of the picture.
2332
 * @return 0 if successful, -1 if not.
2333
 */
2334
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2335

    
2336
/* Free a picture previously allocated by avpicture_alloc. */
2337
void avpicture_free(AVPicture *picture);
2338

    
2339
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2340
                   int pix_fmt, int width, int height);
2341
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2342
                     unsigned char *dest, int dest_size);
2343
int avpicture_get_size(int pix_fmt, int width, int height);
2344
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2345
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2346
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2347
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2348
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2349

    
2350
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2351
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2352
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2353
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2354
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2355
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2356

    
2357
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2358
                             int has_alpha);
2359
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2360
                              int has_alpha, int *loss_ptr);
2361

    
2362
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2363
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2364
int img_get_alpha_info(const AVPicture *src,
2365
                       int pix_fmt, int width, int height);
2366

    
2367
/* convert among pixel formats */
2368
int img_convert(AVPicture *dst, int dst_pix_fmt,
2369
                const AVPicture *src, int pix_fmt,
2370
                int width, int height);
2371

    
2372
/* deinterlace a picture */
2373
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2374
                          int pix_fmt, int width, int height);
2375

    
2376
/* external high level API */
2377

    
2378
extern AVCodec *first_avcodec;
2379

    
2380
/* returns LIBAVCODEC_VERSION_INT constant */
2381
unsigned avcodec_version(void);
2382
/* returns LIBAVCODEC_BUILD constant */
2383
unsigned avcodec_build(void);
2384
void avcodec_init(void);
2385

    
2386
void register_avcodec(AVCodec *format);
2387
AVCodec *avcodec_find_encoder(enum CodecID id);
2388
AVCodec *avcodec_find_encoder_by_name(const char *name);
2389
AVCodec *avcodec_find_decoder(enum CodecID id);
2390
AVCodec *avcodec_find_decoder_by_name(const char *name);
2391
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2392

    
2393
void avcodec_get_context_defaults(AVCodecContext *s);
2394
AVCodecContext *avcodec_alloc_context(void);
2395
void avcodec_get_frame_defaults(AVFrame *pic);
2396
AVFrame *avcodec_alloc_frame(void);
2397

    
2398
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2399
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2400
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2401
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2402
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2403
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2404

    
2405
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2406
void avcodec_thread_free(AVCodecContext *s);
2407
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2408
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2409
//FIXME func typedef
2410

    
2411
/**
2412
 * opens / inits the AVCodecContext.
2413
 * not thread save!
2414
 */
2415
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2416

    
2417
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2418
                         int *frame_size_ptr,
2419
                         uint8_t *buf, int buf_size);
2420
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2421
                         int *got_picture_ptr,
2422
                         uint8_t *buf, int buf_size);
2423
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2424
                            int *got_sub_ptr,
2425
                            const uint8_t *buf, int buf_size);
2426
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2427
                        int *data_size_ptr,
2428
                        uint8_t *buf, int buf_size);
2429
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2430
                         const short *samples);
2431
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2432
                         const AVFrame *pict);
2433
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2434
                            const AVSubtitle *sub);
2435

    
2436
int avcodec_close(AVCodecContext *avctx);
2437

    
2438
void avcodec_register_all(void);
2439

    
2440
void avcodec_flush_buffers(AVCodecContext *avctx);
2441

    
2442
void avcodec_default_free_buffers(AVCodecContext *s);
2443

    
2444
/* misc usefull functions */
2445

    
2446
/**
2447
 * returns a single letter to describe the picture type
2448
 */
2449
char av_get_pict_type_char(int pict_type);
2450

    
2451

    
2452
/* frame parsing */
2453
typedef struct AVCodecParserContext {
2454
    void *priv_data;
2455
    struct AVCodecParser *parser;
2456
    int64_t frame_offset; /* offset of the current frame */
2457
    int64_t cur_offset; /* current offset
2458
                           (incremented by each av_parser_parse()) */
2459
    int64_t last_frame_offset; /* offset of the last frame */
2460
    /* video info */
2461
    int pict_type; /* XXX: put it back in AVCodecContext */
2462
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2463
    int64_t pts;     /* pts of the current frame */
2464
    int64_t dts;     /* dts of the current frame */
2465

    
2466
    /* private data */
2467
    int64_t last_pts;
2468
    int64_t last_dts;
2469
    int fetch_timestamp;
2470

    
2471
#define AV_PARSER_PTS_NB 4
2472
    int cur_frame_start_index;
2473
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2474
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2475
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2476

    
2477
    int flags;
2478
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2479
} AVCodecParserContext;
2480

    
2481
typedef struct AVCodecParser {
2482
    int codec_ids[5]; /* several codec IDs are permitted */
2483
    int priv_data_size;
2484
    int (*parser_init)(AVCodecParserContext *s);
2485
    int (*parser_parse)(AVCodecParserContext *s,
2486
                        AVCodecContext *avctx,
2487
                        uint8_t **poutbuf, int *poutbuf_size,
2488
                        const uint8_t *buf, int buf_size);
2489
    void (*parser_close)(AVCodecParserContext *s);
2490
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2491
    struct AVCodecParser *next;
2492
} AVCodecParser;
2493

    
2494
extern AVCodecParser *av_first_parser;
2495

    
2496
void av_register_codec_parser(AVCodecParser *parser);
2497
AVCodecParserContext *av_parser_init(int codec_id);
2498
int av_parser_parse(AVCodecParserContext *s,
2499
                    AVCodecContext *avctx,
2500
                    uint8_t **poutbuf, int *poutbuf_size,
2501
                    const uint8_t *buf, int buf_size,
2502
                    int64_t pts, int64_t dts);
2503
int av_parser_change(AVCodecParserContext *s,
2504
                     AVCodecContext *avctx,
2505
                     uint8_t **poutbuf, int *poutbuf_size,
2506
                     const uint8_t *buf, int buf_size, int keyframe);
2507
void av_parser_close(AVCodecParserContext *s);
2508

    
2509
extern AVCodecParser mpegvideo_parser;
2510
extern AVCodecParser mpeg4video_parser;
2511
extern AVCodecParser h261_parser;
2512
extern AVCodecParser h263_parser;
2513
extern AVCodecParser h264_parser;
2514
extern AVCodecParser mjpeg_parser;
2515
extern AVCodecParser pnm_parser;
2516
extern AVCodecParser mpegaudio_parser;
2517
extern AVCodecParser ac3_parser;
2518
extern AVCodecParser dvdsub_parser;
2519
extern AVCodecParser dvbsub_parser;
2520
extern AVCodecParser aac_parser;
2521

    
2522
/* memory */
2523
void *av_malloc(unsigned int size);
2524
void *av_mallocz(unsigned int size);
2525
void *av_realloc(void *ptr, unsigned int size);
2526
void av_free(void *ptr);
2527
char *av_strdup(const char *s);
2528
void av_freep(void *ptr);
2529
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2530
/* for static data only */
2531
/* call av_free_static to release all staticaly allocated tables */
2532
void av_free_static(void);
2533
void *av_mallocz_static(unsigned int size);
2534
void *av_realloc_static(void *ptr, unsigned int size);
2535

    
2536
/* add by bero : in adx.c */
2537
int is_adx(const unsigned char *buf,size_t bufsize);
2538

    
2539
void img_copy(AVPicture *dst, const AVPicture *src,
2540
              int pix_fmt, int width, int height);
2541

    
2542
int img_crop(AVPicture *dst, const AVPicture *src,
2543
             int pix_fmt, int top_band, int left_band);
2544

    
2545
int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2546
            int padtop, int padbottom, int padleft, int padright, int *color);
2547

    
2548
/* av_log API */
2549

    
2550
#include <stdarg.h>
2551

    
2552
#define AV_LOG_QUIET -1
2553
#define AV_LOG_ERROR 0
2554
#define AV_LOG_INFO 1
2555
#define AV_LOG_DEBUG 2
2556

    
2557
#ifdef __GNUC__
2558
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2559
#else
2560
extern void av_log(void*, int level, const char *fmt, ...);
2561
#endif
2562

    
2563
extern void av_vlog(void*, int level, const char *fmt, va_list);
2564
extern int av_log_get_level(void);
2565
extern void av_log_set_level(int);
2566
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2567

    
2568
/* endian macros */
2569
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2570
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2571
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2572
                   (((uint8_t*)(x))[1] << 16) | \
2573
                   (((uint8_t*)(x))[2] << 8) | \
2574
                    ((uint8_t*)(x))[3])
2575
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2576
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2577
                   (((uint8_t*)(x))[2] << 16) | \
2578
                   (((uint8_t*)(x))[1] << 8) | \
2579
                    ((uint8_t*)(x))[0])
2580
#endif
2581

    
2582
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2583

    
2584
#ifdef __cplusplus
2585
}
2586
#endif
2587

    
2588
#endif /* AVCODEC_H */