2
* Generic DCT based hybrid video encoder
3
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
5
* This library is free software; you can redistribute it and/or
6
* modify it under the terms of the GNU Lesser General Public
7
* License as published by the Free Software Foundation; either
8
* version 2 of the License, or (at your option) any later version.
10
* This library is distributed in the hope that it will be useful,
11
* but WITHOUT ANY WARRANTY; without even the implied warranty of
12
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13
* Lesser General Public License for more details.
15
* You should have received a copy of the GNU Lesser General Public
16
* License along with this library; if not, write to the Free Software
17
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25
#ifndef AVCODEC_MPEGVIDEO_H
26
#define AVCODEC_MPEGVIDEO_H
30
#define FRAME_SKIPED 100 ///< return value for header parsers if frame is not coded
41
#define MPEG_BUF_SIZE (16 * 1024)
43
#define QMAT_SHIFT_MMX 16
49
#define MAX_PICTURE_COUNT 15
51
#define ME_MAP_SIZE 64
52
#define ME_MAP_SHIFT 3
53
#define ME_MAP_MV_BITS 11
55
/* run length table */
59
#define I_TYPE FF_I_TYPE ///< Intra
60
#define P_TYPE FF_P_TYPE ///< Predicted
61
#define B_TYPE FF_B_TYPE ///< Bi-dir predicted
62
#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4
63
#define SI_TYPE FF_SI_TYPE ///< Switching Intra
64
#define SP_TYPE FF_SP_TYPE ///< Switching Predicted
66
typedef struct Predictor{
72
typedef struct RateControlEntry{
79
uint64_t expected_bits;
90
* rate control context.
92
typedef struct RateControlContext{
94
int num_entries; ///< number of RateControlEntries
95
RateControlEntry *entry;
96
int buffer_index; ///< amount of bits in the video/audio buffer
98
double short_term_qsum; ///< sum of recent qscales
99
double short_term_qcount; ///< count of recent qscales
100
double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization
101
double pass1_wanted_bits; ///< bits which should have been outputed by the pass1 code (including complexity init)
103
double last_qscale_for[5]; ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff
104
int last_mc_mb_var_sum;
106
uint64_t i_cplx_sum[5];
107
uint64_t p_cplx_sum[5];
108
uint64_t mv_bits_sum[5];
109
uint64_t qscale_sum[5];
111
int last_non_b_pict_type;
117
typedef struct ScanTable{
118
const uint8_t *scantable;
119
uint8_t permutated[64];
120
uint8_t raster_end[64];
122
/** Used by dct_quantise_alitvec to find last-non-zero */
123
uint8_t __align8 inverse[64];
130
typedef struct Picture{
134
* halfpel luma planes.
136
uint8_t *interpolated[3];
138
int16_t (*motion_val[2])[2];
139
int8_t *ref_index[2];
140
uint32_t *mb_type_base;
141
uint32_t *mb_type; ///< mb_type_base + mb_width + 2, note: only used for decoding currently
142
#define MB_TYPE_INTRA4x4 0x0001
143
#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
144
#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
145
#define MB_TYPE_16x16 0x0008
146
#define MB_TYPE_16x8 0x0010
147
#define MB_TYPE_8x16 0x0020
148
#define MB_TYPE_8x8 0x0040
149
#define MB_TYPE_INTERLACED 0x0080
150
#define MB_TYPE_DIRECT2 0x0100 //FIXME
151
#define MB_TYPE_ACPRED 0x0200
152
#define MB_TYPE_GMC 0x0400 //FIXME mpeg4 specific
153
#define MB_TYPE_SKIP 0x0800
154
#define MB_TYPE_P0L0 0x1000
155
#define MB_TYPE_P1L0 0x2000
156
#define MB_TYPE_P0L1 0x4000
157
#define MB_TYPE_P1L1 0x8000
158
#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
159
#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
160
#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
161
#define MB_TYPE_QUANT 0x00010000
162
//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 pat, ...)
164
#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
165
#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
166
#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
167
#define IS_INTRA(a) ((a)&7)
168
#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
169
#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
170
#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
171
#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
172
#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
173
#define IS_GMC(a) ((a)&MB_TYPE_GMC)
174
#define IS_16X16(a) ((a)&MB_TYPE_16x16)
175
#define IS_16X8(a) ((a)&MB_TYPE_16x8)
176
#define IS_8X16(a) ((a)&MB_TYPE_8x16)
177
#define IS_8X8(a) ((a)&MB_TYPE_8x8)
178
#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
179
#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
180
#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
181
#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
182
#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
183
#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
184
#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
185
#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note doesnt work if subMBs
188
int field_poc[2]; ///< h264 top/bottom POC
189
int poc; ///< h264 frame POC
190
int frame_num; ///< h264 frame_num
191
int pic_id; ///< h264 pic_num or long_term_pic_idx
192
int long_ref; ///< 1->long term reference 0->short term reference
194
int mb_var_sum; ///< sum of MB variance for current frame
195
int mc_mb_var_sum; ///< motion compensated MB variance for current frame
196
uint16_t *mb_var; ///< Table for MB variances
197
uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
198
uint8_t *mb_mean; ///< Table for MB luminance
199
int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decission
200
int b_frame_score; /* */
203
typedef struct ParseContext{
208
uint32_t state; ///< contains the last few bytes in MSB order
209
int frame_start_found;
210
int overread; ///< the number of bytes which where irreversibly read from the next frame
211
int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
214
struct MpegEncContext;
217
* Motion estimation context.
219
typedef struct MotionEstContext{
220
int skip; ///< set if ME is skiped for the current MB
221
int co_located_mv[4][2]; ///< mv from last p frame for direct mode ME
222
int direct_basis_mv[4][2];
223
uint8_t *scratchpad; ///< data area for the me algo, so that the ME doesnt need to malloc/free
224
uint32_t *map; ///< map to avoid duplicate evaluations
225
uint32_t *score_map; ///< map to store the scores
227
int pre_penalty_factor;
229
int sub_penalty_factor;
230
int mb_penalty_factor;
231
int pre_pass; ///< = 1 for the pre pass
233
uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
234
int (*sub_motion_search)(struct MpegEncContext * s,
235
int *mx_ptr, int *my_ptr, int dmin,
236
int xmin, int ymin, int xmax, int ymax,
237
int pred_x, int pred_y, Picture *ref_picture,
238
int n, int size, uint8_t * const mv_penalty);
239
int (*motion_search[7])(struct MpegEncContext * s, int block,
240
int *mx_ptr, int *my_ptr,
241
int P[10][2], int pred_x, int pred_y,
242
int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
243
int ref_mv_scale, uint8_t * const mv_penalty);
244
int (*pre_motion_search)(struct MpegEncContext * s, int block,
245
int *mx_ptr, int *my_ptr,
246
int P[10][2], int pred_x, int pred_y,
247
int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
248
int ref_mv_scale, uint8_t * const mv_penalty);
249
int (*get_mb_score)(struct MpegEncContext * s, int mx, int my, int pred_x, int pred_y, Picture *ref_picture,
250
uint8_t * const mv_penalty);
256
typedef struct MpegEncContext {
257
struct AVCodecContext *avctx;
258
/* the following parameters must be initialized before encoding */
259
int width, height;///< picture size. must be a multiple of 16
261
int intra_only; ///< if true, only intra pictures are generated
262
int bit_rate; ///< wanted bit rate
263
int bit_rate_tolerance; ///< amount of +- bits (>0)
264
enum OutputFormat out_format; ///< output format
265
int h263_pred; ///< use mpeg4/h263 ac/dc predictions
267
/* the following codec id fields are deprecated in favor of codec_id */
268
int h263_plus; ///< h263 plus headers
269
int h263_rv10; ///< use RV10 variation for H263
270
int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
271
int h263_intel; ///< use I263 intel h263 header
272
int h263_flv; ///< use flv h263 header
274
int codec_id; /* see CODEC_ID_xxx */
275
int fixed_qscale; ///< fixed qscale if non zero
276
float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
277
float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
278
int max_qdiff; ///< max qscale difference between frames
279
int encoding; ///< true if we are encoding (vs decoding)
280
int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
281
int max_b_frames; ///< max number of b-frames for encoding
282
int b_frame_strategy;
283
int luma_elim_threshold;
284
int chroma_elim_threshold;
285
int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
286
int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
287
/* the following fields are managed internally by the encoder */
292
/* sequence parameters */
293
int context_initialized;
294
int input_picture_number;
296
int picture_in_gop_number; ///< 0-> first pic in gop, ...
297
int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
298
int mb_width, mb_height; ///< number of MBs horizontally & vertically
299
int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressng of left & top MBs withoutt sig11
300
int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replicateion)
301
int mb_num; ///< number of MBs of a picture
302
int linesize; ///< line size, in bytes, may be different from width
303
int uvlinesize; ///< line size, for chroma in bytes, may be different from width
304
Picture picture[MAX_PICTURE_COUNT]; ///< main picture buffer
305
Picture *input_picture[MAX_PICTURE_COUNT]; ///< next pictures on display order for encoding
306
Picture *reordered_input_picture[MAX_PICTURE_COUNT]; ///< pointer to the next pictures in codedorder for encoding
309
* copy of the previous picture structure.
310
* note, linesize & data, might not match the previous picture (for field pictures)
312
Picture last_picture;
315
* copy of the next picture structure.
316
* note, linesize & data, might not match the next picture (for field pictures)
318
Picture next_picture;
321
* copy of the source picture structure for encoding.
322
* note, linesize & data, might not match the source picture (for field pictures)
327
* copy of the current picture structure.
328
* note, linesize & data, might not match the current picture (for field pictures)
330
Picture current_picture; ///< buffer to store the decompressed current picture
332
Picture *last_picture_ptr; ///< pointer to the previous picture.
333
Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
334
Picture *new_picture_ptr; ///< pointer to the source picture for encoding
335
Picture *current_picture_ptr; ///< pointer to the current picture
336
int last_dc[3]; ///< last DC values for MPEG1
337
int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
338
int16_t dc_cache[4*5];
339
int y_dc_scale, c_dc_scale;
340
uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
341
uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
342
uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
343
int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
345
uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip
346
#define PREV_PICT_TYPES_BUFFER_SIZE 256
347
int mb_skiped; ///< MUST BE SET only during DECODING
348
uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
349
and used for b-frame encoding & decoding (contains skip table of next P Frame) */
350
uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
351
uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
352
uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
353
uint8_t *allocated_edge_emu_buffer;
354
uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
357
float frame_qscale; ///< qscale from the frame level rc FIXME remove
358
int adaptive_quant; ///< use adaptive quantization
359
int dquant; ///< qscale difference to prev qscale
360
int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ...
362
int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
363
int frame_rate_index;
364
/* motion compensation */
365
int unrestricted_mv; ///< mv can point outside of the coded picture
366
int h263_long_vectors; ///< use horrible h263v1 long vector mode
367
int decode; ///< if 0 then decoding will be skiped (for encoding b frames for example)
369
DSPContext dsp; ///< pointers for accelerated dsp fucntions
370
int f_code; ///< forward MV resolution
371
int b_code; ///< backward MV resolution for B Frames (mpeg4)
372
int16_t (*motion_val)[2];
373
int16_t (*p_mv_table_base)[2];
374
int16_t (*b_forw_mv_table_base)[2];
375
int16_t (*b_back_mv_table_base)[2];
376
int16_t (*b_bidir_forw_mv_table_base)[2];
377
int16_t (*b_bidir_back_mv_table_base)[2];
378
int16_t (*b_direct_mv_table_base)[2];
379
int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
380
int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
381
int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
382
int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
383
int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
384
int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
385
int me_method; ///< ME algorithm
386
int scene_change_score;
388
#define MV_DIR_BACKWARD 1
389
#define MV_DIR_FORWARD 2
390
#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
392
#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
393
#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
394
#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
395
#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
396
#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
397
/**motion vectors for a macroblock
398
first coordinate : 0 = forward 1 = backward
399
second " : depend on type
400
third " : 0 = x, 1 = y
403
int field_select[2][2];
404
int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
405
uint8_t *fcode_tab; ///< smallest fcode needed for each MV
409
int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
410
for b-frames rounding mode is allways 0 */
412
int hurry_up; /**< when set to 1 during decoding, b frames will be skiped
413
when set to 2 idct/dequant will be skipped too */
415
/* macroblock layer */
419
uint8_t *mb_type; ///< Table for MB type FIXME remove and use picture->mb_type
420
#define MB_TYPE_INTRA 0x01
421
#define MB_TYPE_INTER 0x02
422
#define MB_TYPE_INTER4V 0x04
423
#define MB_TYPE_SKIPED 0x08
424
//#define MB_TYPE_GMC 0x10
426
#define MB_TYPE_DIRECT 0x10
427
#define MB_TYPE_FORWARD 0x20
428
#define MB_TYPE_BACKWARD 0x40
429
#define MB_TYPE_BIDIR 0x80
431
int block_index[6]; ///< index to current MB in block based arrays with edges
435
int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
437
/** matrix transmitted in the bitstream */
438
uint16_t intra_matrix[64];
439
uint16_t chroma_intra_matrix[64];
440
uint16_t inter_matrix[64];
441
uint16_t chroma_inter_matrix[64];
442
#define QUANT_BIAS_SHIFT 8
443
int intra_quant_bias; ///< bias for the quantizer
444
int inter_quant_bias; ///< bias for the quantizer
445
int min_qcoeff; ///< minimum encodable coefficient
446
int max_qcoeff; ///< maximum encodable coefficient
447
int ac_esc_length; ///< num of bits needed to encode the longest esc
448
uint8_t *intra_ac_vlc_length;
449
uint8_t *intra_ac_vlc_last_length;
450
uint8_t *inter_ac_vlc_length;
451
uint8_t *inter_ac_vlc_last_length;
452
uint8_t *luma_dc_vlc_length;
453
uint8_t *chroma_dc_vlc_length;
454
#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
456
/** precomputed matrix (combine qscale and DCT renorm) */
457
int __align8 q_intra_matrix[32][64];
458
int __align8 q_inter_matrix[32][64];
459
/** identical to the above but for MMX & these are not permutated */
460
uint16_t __align8 q_intra_matrix16[32][64];
461
uint16_t __align8 q_inter_matrix16[32][64];
462
uint16_t __align8 q_intra_matrix16_bias[32][64];
463
uint16_t __align8 q_inter_matrix16_bias[32][64];
464
int block_last_index[6]; ///< last non zero coefficient in block
466
ScanTable __align8 intra_scantable;
467
ScanTable intra_h_scantable;
468
ScanTable intra_v_scantable;
469
ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
471
void *opaque; ///< private data for the user
473
/* bit rate control */
474
int I_frame_bits; //FIXME used in mpeg12 ...
477
int frame_bits; ///< bits used for the current frame
478
RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
480
/* statistics, used for 2-pass encoding */
489
int misc_bits; ///< cbp, mb_type
490
int last_bits; ///< temp var used for calculating the above vars
492
/* error concealment / resync */
494
uint8_t *error_status_table; ///< table of the error status of each MB
495
#define VP_START 1 ///< current MB is the first after a resync marker
504
int resync_mb_x; ///< x position of last resync marker
505
int resync_mb_y; ///< y position of last resync marker
506
GetBitContext last_resync_gb; ///< used to search for the next resync marker
507
int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
508
int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
509
int error_resilience;
511
ParseContext parse_context;
517
/* H.263+ specific */
518
int umvplus; ///< == H263+ && unrestricted_mv
519
int h263_aic; ///< Advanded INTRA Coding (AIC)
520
int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
523
int time_increment_resolution;
524
int time_increment_bits; ///< number of bits to represent the fractional part of time
526
int time_base; ///< time in seconds of last I,P,S Frame
527
int64_t time; ///< time of current frame
528
int64_t last_non_b_time;
529
uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
530
uint16_t pb_time; ///< time distance between the last b and p,s,i frame
531
uint16_t pp_field_time;
532
uint16_t pb_field_time; ///< like above, just for interlaced
534
int vol_sprite_usage;
539
int sprite_brightness_change;
540
int num_sprite_warping_points;
541
int real_sprite_warping_points;
542
int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
543
int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
544
int sprite_shift[2]; ///< sprite shift [isChroma]
547
int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
550
int enhancement_type;
553
int aspect_ratio_info; //FIXME remove
554
int aspected_width; //FIXME remove
555
int aspected_height; //FIXME remove
556
int sprite_warping_accuracy;
557
int low_latency_sprite;
558
int data_partitioning; ///< data partitioning flag from header
559
int partitioned_frame; ///< is current frame partitioned
560
int rvlc; ///< reversible vlc
561
int resync_marker; ///< could this stream contain resync markers
562
int low_delay; ///< no reordering needed / has no b-frames
564
int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
565
PutBitContext tex_pb; ///< used for data partitioned VOPs
566
PutBitContext pb2; ///< used for data partitioned VOPs
567
#define PB_BUFFER_SIZE 1024*256
568
uint8_t *tex_pb_buffer;
571
int16_t (*field_mv_table)[2][2]; ///< used for interlaced b frame decoding
572
int8_t (*field_select_table)[2]; ///< wtf, no really another table for interlaced b frames
573
int t_frame; ///< time distance of first I -> B, used for interlaced b frames
574
int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
576
/* divx specific, used to workaround (many) bugs in divx5 */
580
#define BITSTREAM_BUFFER_SIZE 1024*256
581
uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
582
int bitstream_buffer_size;
586
/* lavc specific stuff, used to workaround bugs in libavcodec */
591
int rv10_version; ///< RV10 version: 0 or 3
592
int rv10_first_dc_coded[3];
595
struct MJpegContext *mjpeg_ctx;
596
int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
597
int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
598
int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ?
599
int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers
601
/* MSMPEG4 specific */
604
int rl_chroma_table_index;
606
int use_skip_mb_code;
607
int slice_height; ///< in macroblocks
608
int first_slice_line; ///< used in mpeg4 too to handle resync markers
609
int flipflop_rounding;
610
int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
612
int esc3_level_length;
614
/** [mb_intra][isChroma][level][run][last] */
615
int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
616
int inter_intra_pred;
619
/* decompression specific */
623
int fake_picture_number; ///< picture number at the bitstream frame rate
624
int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
625
int last_mv_dir; ///< last mv_dir, used for b frame encoding
626
int broken_link; ///< no_output_of_prior_pics_flag
628
/* MPEG2 specific - I wish I had not to support this mess. */
629
int progressive_sequence;
630
int mpeg_f_code[2][2];
631
int picture_structure;
633
#define PICT_TOP_FIELD 1
634
#define PICT_BOTTOM_FIELD 2
637
int intra_dc_precision;
638
int frame_pred_frame_dct;
640
int concealment_motion_vectors;
642
int intra_vlc_format;
644
int repeat_first_field;
646
int progressive_frame;
650
int first_field; ///< is 1 for the first field of a field picture 0 otherwise
653
/* These are explained on avcodec.h */
655
int rtp_payload_size;
656
void (*rtp_callback)(void *data, int size, int packet_number);
657
uint8_t *ptr_lastgob;
659
DCTELEM (*block)[64]; ///< points to one of the following blocks
660
DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
661
int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
663
#define SLICE_ERROR -1
664
#define SLICE_END -2 ///<end marker found
665
#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
667
void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
668
DCTELEM *block/*align 16*/, int n, int qscale);
669
void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
670
DCTELEM *block/*align 16*/, int n, int qscale);
671
void (*dct_unquantize_h263)(struct MpegEncContext *s,
672
DCTELEM *block/*align 16*/, int n, int qscale);
673
void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
674
DCTELEM *block/*align 16*/, int n, int qscale);
675
int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
676
int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
680
int DCT_common_init(MpegEncContext *s);
681
int MPV_common_init(MpegEncContext *s);
682
void MPV_common_end(MpegEncContext *s);
683
void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
684
int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
685
void MPV_frame_end(MpegEncContext *s);
686
int MPV_encode_init(AVCodecContext *avctx);
687
int MPV_encode_end(AVCodecContext *avctx);
688
int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
690
void MPV_common_init_mmx(MpegEncContext *s);
693
void MPV_common_init_axp(MpegEncContext *s);
696
void MPV_common_init_mlib(MpegEncContext *s);
699
void MPV_common_init_mmi(MpegEncContext *s);
702
void MPV_common_init_armv4l(MpegEncContext *s);
705
void MPV_common_init_ppc(MpegEncContext *s);
707
extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
708
void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
709
void ff_clean_intra_table_entries(MpegEncContext *s);
710
void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
711
void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
712
void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
713
int src_x, int src_y, int w, int h);
714
#define END_NOT_FOUND -100
715
int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size);
716
void ff_mpeg_flush(AVCodecContext *avctx);
717
void ff_print_debug_info(MpegEncContext *s, Picture *pict);
718
void ff_write_quant_matrix(PutBitContext *pb, int16_t *matrix);
720
void ff_er_frame_start(MpegEncContext *s);
721
void ff_er_frame_end(MpegEncContext *s);
722
void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
725
extern enum PixelFormat ff_yuv420p_list[2];
727
void ff_init_block_index(MpegEncContext *s);
729
static inline void ff_update_block_index(MpegEncContext *s){
730
s->block_index[0]+=2;
731
s->block_index[1]+=2;
732
s->block_index[2]+=2;
733
s->block_index[3]+=2;
741
static inline int get_bits_diff(MpegEncContext *s){
742
const int bits= get_bit_count(&s->pb);
743
const int last= s->last_bits;
751
void ff_estimate_p_frame_motion(MpegEncContext * s,
753
void ff_estimate_b_frame_motion(MpegEncContext * s,
755
int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
756
void ff_fix_long_p_mvs(MpegEncContext * s);
757
void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
758
void ff_init_me(MpegEncContext *s);
759
int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
763
extern const int16_t ff_mpeg1_default_intra_matrix[64];
764
extern const int16_t ff_mpeg1_default_non_intra_matrix[64];
765
extern uint8_t ff_mpeg1_dc_scale_table[128];
767
void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
768
void mpeg1_encode_mb(MpegEncContext *s,
769
DCTELEM block[6][64],
770
int motion_x, int motion_y);
771
void ff_mpeg1_encode_init(MpegEncContext *s);
772
void ff_mpeg1_encode_slice_header(MpegEncContext *s);
773
void ff_mpeg1_clean_buffers(MpegEncContext *s);
777
typedef struct RLTable {
778
int n; ///< number of entries of table_vlc minus 1
779
int last; ///< number of values for last = 0
780
const uint16_t (*table_vlc)[2];
781
const int8_t *table_run;
782
const int8_t *table_level;
783
uint8_t *index_run[2]; ///< encoding only
784
int8_t *max_level[2]; ///< encoding & decoding
785
int8_t *max_run[2]; ///< encoding & decoding
786
VLC vlc; ///< decoding only deprected FIXME remove
787
RL_VLC_ELEM *rl_vlc[32]; ///< decoding only
790
void init_rl(RLTable *rl);
791
void init_vlc_rl(RLTable *rl);
793
static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
796
index = rl->index_run[last][run];
799
if (level > rl->max_level[last][run])
801
return index + level - 1;
804
extern uint8_t ff_mpeg4_y_dc_scale_table[32];
805
extern uint8_t ff_mpeg4_c_dc_scale_table[32];
806
extern const int16_t ff_mpeg4_default_intra_matrix[64];
807
extern const int16_t ff_mpeg4_default_non_intra_matrix[64];
808
int ff_h263_decode_init(AVCodecContext *avctx);
809
int ff_h263_decode_frame(AVCodecContext *avctx,
810
void *data, int *data_size,
811
uint8_t *buf, int buf_size);
812
int ff_h263_decode_end(AVCodecContext *avctx);
813
void h263_encode_mb(MpegEncContext *s,
814
DCTELEM block[6][64],
815
int motion_x, int motion_y);
816
void mpeg4_encode_mb(MpegEncContext *s,
817
DCTELEM block[6][64],
818
int motion_x, int motion_y);
819
void h263_encode_picture_header(MpegEncContext *s, int picture_number);
820
void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
821
int h263_encode_gob_header(MpegEncContext * s, int mb_line);
822
int16_t *h263_pred_motion(MpegEncContext * s, int block,
824
void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
826
void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
827
void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
828
void h263_encode_init(MpegEncContext *s);
829
void h263_decode_init_vlc(MpegEncContext *s);
830
int h263_decode_picture_header(MpegEncContext *s);
831
int ff_h263_decode_gob_header(MpegEncContext *s);
832
int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
833
void ff_h263_update_motion_val(MpegEncContext * s);
836
int intel_h263_decode_picture_header(MpegEncContext *s);
837
int flv_h263_decode_picture_header(MpegEncContext *s);
838
int ff_h263_decode_mb(MpegEncContext *s,
839
DCTELEM block[6][64]);
840
int h263_get_picture_format(int width, int height);
841
void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
842
void ff_mpeg4_clean_buffers(MpegEncContext *s);
843
void ff_mpeg4_stuffing(PutBitContext * pbc);
844
void ff_mpeg4_init_partitions(MpegEncContext *s);
845
void ff_mpeg4_merge_partitions(MpegEncContext *s);
846
void ff_clean_mpeg4_qscales(MpegEncContext *s);
847
void ff_clean_h263_qscales(MpegEncContext *s);
848
int ff_mpeg4_decode_partitions(MpegEncContext *s);
849
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
850
int ff_h263_resync(MpegEncContext *s);
851
int ff_h263_get_gob_height(MpegEncContext *s);
852
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
853
inline int ff_h263_round_chroma(int x);
857
void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
858
int rv_decode_dc(MpegEncContext *s, int n);
862
void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
863
void msmpeg4_encode_ext_header(MpegEncContext * s);
864
void msmpeg4_encode_mb(MpegEncContext * s,
865
DCTELEM block[6][64],
866
int motion_x, int motion_y);
867
int msmpeg4_decode_picture_header(MpegEncContext * s);
868
int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
869
int ff_msmpeg4_decode_init(MpegEncContext *s);
870
void ff_msmpeg4_encode_init(MpegEncContext *s);
871
int ff_wmv2_decode_picture_header(MpegEncContext * s);
872
int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
873
void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
874
void ff_mspel_motion(MpegEncContext *s,
875
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
876
uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
877
int motion_x, int motion_y, int h);
878
int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
879
void ff_wmv2_encode_mb(MpegEncContext * s,
880
DCTELEM block[6][64],
881
int motion_x, int motion_y);
884
int mjpeg_init(MpegEncContext *s);
885
void mjpeg_close(MpegEncContext *s);
886
void mjpeg_encode_mb(MpegEncContext *s,
887
DCTELEM block[6][64]);
888
void mjpeg_picture_header(MpegEncContext *s);
889
void mjpeg_picture_trailer(MpegEncContext *s);
893
int ff_rate_control_init(MpegEncContext *s);
894
float ff_rate_estimate_qscale(MpegEncContext *s);
895
void ff_write_pass1_stats(MpegEncContext *s);
896
void ff_rate_control_uninit(MpegEncContext *s);
897
double ff_eval(char *s, double *const_value, const char **const_name,
898
double (**func1)(void *, double), const char **func1_name,
899
double (**func2)(void *, double, double), char **func2_name,
903
#endif /* AVCODEC_MPEGVIDEO_H */
added
removed
ffmpeg/libavcodec/mpegvideo.h
