Libav
mpegvideo.h
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1 /*
2  * Generic DCT based hybrid video encoder
3  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer
5  *
6  * This file is part of Libav.
7  *
8  * Libav is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * Libav is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with Libav; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
28 #ifndef AVCODEC_MPEGVIDEO_H
29 #define AVCODEC_MPEGVIDEO_H
30 
31 #include "avcodec.h"
32 #include "dsputil.h"
33 #include "error_resilience.h"
34 #include "get_bits.h"
35 #include "h263dsp.h"
36 #include "hpeldsp.h"
37 #include "put_bits.h"
38 #include "ratecontrol.h"
39 #include "parser.h"
40 #include "mpeg12data.h"
41 #include "rl.h"
42 #include "thread.h"
43 #include "videodsp.h"
44 
45 #include "libavutil/opt.h"
46 
47 #define FRAME_SKIPPED 100
48 
54 };
55 
56 #define MPEG_BUF_SIZE (16 * 1024)
57 
58 #define QMAT_SHIFT_MMX 16
59 #define QMAT_SHIFT 22
60 
61 #define MAX_FCODE 7
62 #define MAX_MV 2048
63 
64 #define MAX_THREADS 16
65 
66 #define MAX_PICTURE_COUNT 32
67 
68 #define MAX_B_FRAMES 16
69 
70 #define ME_MAP_SIZE 64
71 #define ME_MAP_SHIFT 3
72 #define ME_MAP_MV_BITS 11
73 
74 #define MAX_MB_BYTES (30*16*16*3/8 + 120)
75 
76 #define INPLACE_OFFSET 16
77 
78 /* Start codes. */
79 #define SEQ_END_CODE 0x000001b7
80 #define SEQ_START_CODE 0x000001b3
81 #define GOP_START_CODE 0x000001b8
82 #define PICTURE_START_CODE 0x00000100
83 #define SLICE_MIN_START_CODE 0x00000101
84 #define SLICE_MAX_START_CODE 0x000001af
85 #define EXT_START_CODE 0x000001b5
86 #define USER_START_CODE 0x000001b2
87 
92 #define DELAYED_PIC_REF 4
93 
94 struct MpegEncContext;
95 
99 typedef struct Picture{
100  struct AVFrame f;
102 
104  int8_t *qscale_table;
105 
107  int16_t (*motion_val[2])[2];
108 
110  uint32_t *mb_type;
111 
112 #if !FF_API_MB_TYPE
113 #define MB_TYPE_INTRA4x4 0x0001
114 #define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
115 #define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific
116 #define MB_TYPE_16x16 0x0008
117 #define MB_TYPE_16x8 0x0010
118 #define MB_TYPE_8x16 0x0020
119 #define MB_TYPE_8x8 0x0040
120 #define MB_TYPE_INTERLACED 0x0080
121 #define MB_TYPE_DIRECT2 0x0100 //FIXME
122 #define MB_TYPE_ACPRED 0x0200
123 #define MB_TYPE_GMC 0x0400
124 #define MB_TYPE_SKIP 0x0800
125 #define MB_TYPE_P0L0 0x1000
126 #define MB_TYPE_P1L0 0x2000
127 #define MB_TYPE_P0L1 0x4000
128 #define MB_TYPE_P1L1 0x8000
129 #define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
130 #define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
131 #define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
132 #define MB_TYPE_QUANT 0x00010000
133 #define MB_TYPE_CBP 0x00020000
134 #endif
135 
138 
140  int8_t *ref_index[2];
141 
143  uint16_t *mb_var;
144 
146  uint16_t *mc_mb_var;
147 
150 
156 
157 #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type
158 #define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
159 #define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
160 #define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
161 #define IS_INTRA(a) ((a)&7)
162 #define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
163 #define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
164 #define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
165 #define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
166 #define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
167 #define IS_GMC(a) ((a)&MB_TYPE_GMC)
168 #define IS_16X16(a) ((a)&MB_TYPE_16x16)
169 #define IS_16X8(a) ((a)&MB_TYPE_16x8)
170 #define IS_8X16(a) ((a)&MB_TYPE_8x16)
171 #define IS_8X8(a) ((a)&MB_TYPE_8x8)
172 #define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
173 #define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
174 #define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
175 #define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
176 #define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
177 #define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
178 #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
179 #define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list))))
180 #define HAS_CBP(a) ((a)&MB_TYPE_CBP)
181 
182  int field_poc[2];
183  int poc;
184  int frame_num;
186  int pic_id;
188  int long_ref;
189  int ref_poc[2][2][32];
190  int ref_count[2][2];
191  int mbaff;
193 
196 
197  int b_frame_score; /* */
199 
201  int shared;
202  int recovered;
203 } Picture;
204 
208 typedef struct MotionEstContext{
210  int skip;
211  int co_located_mv[4][2];
212  int direct_basis_mv[4][2];
218  uint32_t *map;
219  uint32_t *score_map;
220  unsigned map_generation;
229  int flags;
231  int mb_flags;
232  int pre_pass;
233  int dia_size;
234  int xmin;
235  int xmax;
236  int ymin;
237  int ymax;
238  int pred_x;
239  int pred_y;
240  uint8_t *src[4][4];
241  uint8_t *ref[4][4];
242  int stride;
243  int uvstride;
244  /* temp variables for picture complexity calculation */
248 /* cmp, chroma_cmp;*/
256  int *mx_ptr, int *my_ptr, int dmin,
257  int src_index, int ref_index,
258  int size, int h);
260 
264 typedef struct MpegEncContext {
265  AVClass *class;
267  /* the following parameters must be initialized before encoding */
268  int width, height;
269  int gop_size;
271  int bit_rate;
273  int h263_pred;
274  int pb_frame;
275 
276 /* the following codec id fields are deprecated in favor of codec_id */
277  int h263_plus;
278  int h263_flv;
279 
280  enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
282  int encoding;
283  int flags;
284  int flags2;
290  int codec_tag;
292  /* the following fields are managed internally by the encoder */
293 
294  /* sequence parameters */
298  int picture_number; //FIXME remove, unclear definition
301  int mb_stride;
302  int b8_stride;
303  int b4_stride;
305  int mb_num;
306  ptrdiff_t linesize;
307  ptrdiff_t uvlinesize;
311 
313  int ac_pred;
315  int h263_aic;
316 
317  /* scantables */
322 
323  /* WARNING: changes above this line require updates to hardcoded
324  * offsets used in asm. */
325 
327 
330  int64_t dts_delta;
334  int64_t reordered_pts;
335 
338 
340  int end_mb_y;
343 
349 
355 
361 
367 
371  int last_dc[3];
372  int16_t *dc_val_base;
373  int16_t *dc_val[3];
379  int16_t (*ac_val_base)[16];
380  int16_t (*ac_val[3])[16];
391 
392  int qscale;
394  unsigned int lambda;
395  unsigned int lambda2;
398  int dquant;
399  int pict_type;
400  int last_pict_type; //FIXME removes
405  int skipdct;
406 
407  /* motion compensation */
410 
415  int f_code;
416  int b_code;
417  int16_t (*p_mv_table_base)[2];
418  int16_t (*b_forw_mv_table_base)[2];
419  int16_t (*b_back_mv_table_base)[2];
422  int16_t (*b_direct_mv_table_base)[2];
423  int16_t (*p_field_mv_table_base[2][2])[2];
424  int16_t (*b_field_mv_table_base[2][2][2])[2];
425  int16_t (*p_mv_table)[2];
426  int16_t (*b_forw_mv_table)[2];
427  int16_t (*b_back_mv_table)[2];
428  int16_t (*b_bidir_forw_mv_table)[2];
429  int16_t (*b_bidir_back_mv_table)[2];
430  int16_t (*b_direct_mv_table)[2];
431  int16_t (*p_field_mv_table[2][2])[2];
432  int16_t (*b_field_mv_table[2][2][2])[2];
435  int me_method;
436  int mv_dir;
437 #define MV_DIR_FORWARD 1
438 #define MV_DIR_BACKWARD 2
439 #define MV_DIRECT 4
440  int mv_type;
441 #define MV_TYPE_16X16 0
442 #define MV_TYPE_8X8 1
443 #define MV_TYPE_16X8 2
444 #define MV_TYPE_FIELD 3
445 #define MV_TYPE_DMV 4
446 
451  int mv[2][4][2];
452  int field_select[2][2];
453  int last_mv[2][2][2];
455  int16_t direct_scale_mv[2][64];
456 
458 
462  /* macroblock layer */
463  int mb_x, mb_y;
465  int mb_intra;
466  uint16_t *mb_type;
467 #define CANDIDATE_MB_TYPE_INTRA 0x01
468 #define CANDIDATE_MB_TYPE_INTER 0x02
469 #define CANDIDATE_MB_TYPE_INTER4V 0x04
470 #define CANDIDATE_MB_TYPE_SKIPPED 0x08
471 //#define MB_TYPE_GMC 0x10
472 
473 #define CANDIDATE_MB_TYPE_DIRECT 0x10
474 #define CANDIDATE_MB_TYPE_FORWARD 0x20
475 #define CANDIDATE_MB_TYPE_BACKWARD 0x40
476 #define CANDIDATE_MB_TYPE_BIDIR 0x80
477 
478 #define CANDIDATE_MB_TYPE_INTER_I 0x100
479 #define CANDIDATE_MB_TYPE_FORWARD_I 0x200
480 #define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
481 #define CANDIDATE_MB_TYPE_BIDIR_I 0x800
482 
483 #define CANDIDATE_MB_TYPE_DIRECT0 0x1000
484 
485  int block_index[6];
486  int block_wrap[6];
488 
489  int *mb_index2xy;
490 
492  uint16_t intra_matrix[64];
493  uint16_t chroma_intra_matrix[64];
494  uint16_t inter_matrix[64];
495  uint16_t chroma_inter_matrix[64];
496 #define QUANT_BIAS_SHIFT 8
507 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
508 
509  int coded_score[8];
510 
512  int (*q_intra_matrix)[64];
513  int (*q_inter_matrix)[64];
515  uint16_t (*q_intra_matrix16)[2][64];
516  uint16_t (*q_inter_matrix16)[2][64];
517 
518  /* noise reduction */
519  int (*dct_error_sum)[64];
520  int dct_count[2];
521  uint16_t (*dct_offset)[64];
522 
523  void *opaque;
524 
525  /* bit rate control */
526  int64_t total_bits;
530 
531  /* statistics, used for 2-pass encoding */
532  int mv_bits;
536  int i_count;
537  int f_count;
538  int b_count;
540  int misc_bits;
541  int last_bits;
542 
543  /* error concealment / resync */
550 
552 
553  /* H.263 specific */
555  int obmc;
556  int mb_info;
560 
561  /* H.263+ specific */
562  int umvplus;
569 
570  /* mpeg4 specific */
574  int time_base;
575  int64_t time;
577  uint16_t pp_time;
578  uint16_t pb_time;
579  uint16_t pp_field_time;
580  uint16_t pb_field_time;
582  int sprite_offset[2][2];
583  int sprite_delta[2][2];
584  int mcsel;
587  int aspect_ratio_info; //FIXME remove
591  int low_delay;
592  int vo_type;
598 
599  /* divx specific, used to workaround (many) bugs in divx5 */
601  uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
604 
605  /* RV10 specific */
609 
610  /* MJPEG specific */
612 
613  /* MSMPEG4 specific */
627  int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
629  int mspel;
630 
631  /* decompression specific */
633 
634  /* Mpeg1 specific */
638 
639  /* MPEG-2-specific - I wished not to have to support this mess. */
641  int mpeg_f_code[2][2];
643 /* picture type */
644 #define PICT_TOP_FIELD 1
645 #define PICT_BOTTOM_FIELD 2
646 #define PICT_FRAME 3
647 
658 #define CHROMA_420 1
659 #define CHROMA_422 2
660 #define CHROMA_444 3
661  int chroma_x_shift;//depend on pix_format, that depend on chroma_format
663 
665  int full_pel[2];
670 
671  /* RTP specific */
672  int rtp_mode;
673 
675  int16_t (*pblocks[12])[64];
676 
677  int16_t (*block)[64];
678  int16_t (*blocks)[8][64]; // for HQ mode we need to keep the best block
679  int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
680 #define SLICE_OK 0
681 #define SLICE_ERROR -1
682 #define SLICE_END -2
683 #define SLICE_NOEND -3
684 
686  int16_t *block/*align 16*/, int n, int qscale);
688  int16_t *block/*align 16*/, int n, int qscale);
690  int16_t *block/*align 16*/, int n, int qscale);
692  int16_t *block/*align 16*/, int n, int qscale);
694  int16_t *block/*align 16*/, int n, int qscale);
696  int16_t *block/*align 16*/, int n, int qscale);
698  int16_t *block/*align 16*/, int n, int qscale);
700  int16_t *block/*align 16*/, int n, int qscale);
701  void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
702  int16_t *block/*align 16*/, int n, int qscale);
703  void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
704  int16_t *block/*align 16*/, int n, int qscale);
705  int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
706  int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
707  void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
708 
709  int mpv_flags;
711 
712  /* temp buffers for rate control */
713  float *cplx_tab, *bits_tab;
714 
715  /* flag to indicate a reinitialization is required, e.g. after
716  * a frame size change */
718 
720 
722 
723  /* temporary frames used by b_frame_strategy = 2 */
726 
727 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
728  ((pic && pic >= old_ctx->picture && \
729  pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
730  &new_ctx->picture[pic - old_ctx->picture] : NULL)
731 
732 /* mpegvideo_enc common options */
733 #define FF_MPV_FLAG_SKIP_RD 0x0001
734 #define FF_MPV_FLAG_STRICT_GOP 0x0002
735 #define FF_MPV_FLAG_QP_RD 0x0004
736 #define FF_MPV_FLAG_CBP_RD 0x0008
737 
738 #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
739 #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
740 #define FF_MPV_COMMON_OPTS \
741 { "mpv_flags", "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
742 { "skip_rd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
743 { "strict_gop", "Strictly enforce gop size", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
744 { "qp_rd", "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
745 { "cbp_rd", "use rate distortion optimization for CBP", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
746 { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
747  FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
748 { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
749  FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
750 { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
751 { "error_rate", "Simulate errors in the bitstream to test error concealment.", \
752  FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },
753 
754 extern const AVOption ff_mpv_generic_options[];
755 
756 #define FF_MPV_GENERIC_CLASS(name) \
757 static const AVClass name ## _class = {\
758  .class_name = #name " encoder",\
759  .item_name = av_default_item_name,\
760  .option = ff_mpv_generic_options,\
761  .version = LIBAVUTIL_VERSION_INT,\
762 };
763 
770 
775 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]);
781  const AVFrame *frame, int *got_packet);
788  int y, int h, int picture_structure, int first_field,
789  int low_delay);
790 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
793 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
794 int ff_find_unused_picture(MpegEncContext *s, int shared);
795 void ff_denoise_dct(MpegEncContext *s, int16_t *block);
800 void ff_set_qscale(MpegEncContext * s, int qscale);
801 
803 
805 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
806  const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
807 int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
808 
810 
812  uint8_t *dest_y, uint8_t *dest_cb,
813  uint8_t *dest_cr, int dir,
815  op_pixels_func (*pix_op)[4],
816  qpel_mc_func (*qpix_op)[16]);
817 
822 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
823 
824 extern const enum AVPixelFormat ff_pixfmt_list_420[];
825 
830 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last);
831 
832 static inline void ff_update_block_index(MpegEncContext *s){
833  const int block_size = 8;
834 
835  s->block_index[0]+=2;
836  s->block_index[1]+=2;
837  s->block_index[2]+=2;
838  s->block_index[3]+=2;
839  s->block_index[4]++;
840  s->block_index[5]++;
841  s->dest[0]+= 2*block_size;
842  s->dest[1]+= block_size;
843  s->dest[2]+= block_size;
844 }
845 
846 static inline int get_bits_diff(MpegEncContext *s){
847  const int bits= put_bits_count(&s->pb);
848  const int last= s->last_bits;
849 
850  s->last_bits = bits;
851 
852  return bits - last;
853 }
854 
855 static inline int ff_h263_round_chroma(int x){
856  static const uint8_t h263_chroma_roundtab[16] = {
857  // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
858  0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
859  };
860  return h263_chroma_roundtab[x & 0xf] + (x >> 3);
861 }
862 
863 /* motion_est.c */
865  int mb_x, int mb_y);
867  int mb_x, int mb_y);
868 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
870 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
871  int16_t (*mv_table)[2], int f_code, int type, int truncate);
872 int ff_init_me(MpegEncContext *s);
874 int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
875  int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
876  int ref_mv_scale, int size, int h);
877 int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
878  int ref_index, int size, int h, int add_rate);
879 
880 /* mpeg12.c */
881 extern const uint8_t ff_mpeg1_dc_scale_table[128];
882 extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
883 
886  int16_t block[6][64],
887  int motion_x, int motion_y);
890 
891 extern const uint8_t ff_aic_dc_scale_table[32];
892 extern const uint8_t ff_h263_chroma_qscale_table[32];
893 
894 /* rv10.c */
896 int ff_rv_decode_dc(MpegEncContext *s, int n);
898 
899 
900 /* msmpeg4.c */
904  int16_t block[6][64],
905  int motion_x, int motion_y);
907 int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
912 void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
914  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
915  uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
916  int motion_x, int motion_y, int h);
919  int16_t block[6][64],
920  int motion_x, int motion_y);
921 
925 
926 #endif /* AVCODEC_MPEGVIDEO_H */
int last_time_base
Definition: mpegvideo.h:573
int bitstream_buffer_size
Definition: mpegvideo.h:602
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free
Definition: mpegvideo.h:213
int inter_intra_pred
Definition: mpegvideo.h:628
int ff_pre_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1054
int chroma_elim_threshold
Definition: mpegvideo.h:287
int rv10_first_dc_coded[3]
Definition: mpegvideo.h:607
int frame_bits
bits used for the current frame
Definition: mpegvideo.h:527
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
Definition: mpegvideo.h:529
int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
find the lowest MB row referenced in the MVs
Definition: mpegvideo.c:1964
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:421
int8_t * ref_index[2]
Definition: mpegvideo.h:140
int aspect_ratio_info
Definition: mpegvideo.h:587
int picture_number
Definition: mpegvideo.h:298
ScanTable intra_v_scantable
Definition: mpegvideo.h:321
AVBufferRef * mb_var_buf
Definition: mpegvideo.h:142
rate control context.
Definition: ratecontrol.h:63
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:703
int size
int esc3_level_length
Definition: mpegvideo.h:624
int time_increment_bits
< number of bits to represent the fractional part of time (encoder only)
Definition: mpegvideo.h:572
This structure describes decoded (raw) audio or video data.
Definition: frame.h:107
void ff_mpeg1_encode_slice_header(MpegEncContext *s)
Definition: mpeg12enc.c:339
int skip
set if ME is skipped for the current MB
Definition: mpegvideo.h:210
void ff_draw_horiz_band(AVCodecContext *avctx, Picture *cur, Picture *last, int y, int h, int picture_structure, int first_field, int low_delay)
Definition: mpegvideo.c:2316
int16_t(* p_mv_table)[2]
MV table (1MV per MB) p-frame encoding.
Definition: mpegvideo.h:425
uint8_t * rd_scratchpad
scratchpad for rate distortion mb decision
Definition: mpegvideo.h:388
AVOption.
Definition: opt.h:233
uint8_t * fcode_tab
smallest fcode needed for each MV
Definition: mpegvideo.h:454
int start_mb_y
start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) ...
Definition: mpegvideo.h:339
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:374
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegvideo.h:149
int vol_control_parameters
does the stream contain the low_delay flag, used to workaround buggy encoders
Definition: mpegvideo.h:593
int sprite_warping_accuracy
Definition: mpegvideo.h:588
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG1 & B-frame MPEG4
Definition: mpegvideo.h:453
int pre_pass
= 1 for the pre pass
Definition: mpegvideo.h:232
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:2372
AVFrame * tmp_frames[MAX_B_FRAMES+2]
Definition: mpegvideo.h:724
uint8_t * coded_block_base
Definition: mpegvideo.h:377
#define Picture
Definition: vda.h:40
static AVFrame * picture
Definition: output.c:179
int end_mb_y
end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) ...
Definition: mpegvideo.h:340
uint16_t * mb_var
Table for MB variances.
Definition: mpegvideo.h:143
uint16_t chroma_intra_matrix[64]
Definition: mpegvideo.h:493
void ff_MPV_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])
uint8_t * current_mv_penalty
Definition: mpegvideo.h:254
int16_t(*[3] ac_val)[16]
used for for mpeg4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:380
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:304
int ff_MPV_encode_end(AVCodecContext *avctx)
void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.c:2304
uint16_t chroma_inter_matrix[64]
Definition: mpegvideo.h:495
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:622
Scantable.
Definition: dsputil.h:111
int needs_realloc
Picture needs to be reallocated (eg due to a frame size change)
Definition: mpegvideo.h:198
uint8_t * bitstream_buffer
Definition: mpegvideo.h:601
enum AVCodecID codec_id
Definition: mpegvideo.h:280
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:2463
void ff_MPV_common_init_ppc(MpegEncContext *s)
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:555
int ff_msmpeg4_decode_init(AVCodecContext *avctx)
Definition: msmpeg4dec.c:281
int sub_penalty_factor
Definition: mpegvideo.h:227
int field_picture
whether or not the picture was encoded in separate fields
Definition: mpegvideo.h:192
void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
Definition: msmpeg4enc.c:371
int scan_offset
reserve space for SVCD scan offset user data.
Definition: mpegvideo.h:669
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced p-frame encoding.
Definition: mpegvideo.h:431
void ff_convert_matrix(DSPContext *dsp, int(*qmat)[64], uint16_t(*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
Definition: mpegvideo_enc.c:71
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:417
int min_qcoeff
minimum encodable coefficient
Definition: mpegvideo.h:499
int real_sprite_warping_points
Definition: mpegvideo.h:581
int ff_get_mb_score(MpegEncContext *s, int mx, int my, int src_index, int ref_index, int size, int h, int add_rate)
uint32_t * score_map
map to store the scores
Definition: mpegvideo.h:219
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:2029
int pre_penalty_factor
Definition: mpegvideo.h:221
int scene_change_score
Definition: mpegvideo.h:247
int mpv_flags
flags set by private options
Definition: mpegvideo.h:709
int mmco_reset
h264 MMCO_RESET set this 1. Reordering code must not mix pictures before and after MMCO_RESET...
Definition: mpegvideo.h:185
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:502
int padding_bug_score
used to detect the VERY common padding bug in MPEG4
Definition: mpegvideo.h:597
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:305
int ff_dct_common_init(MpegEncContext *s)
Definition: mpegvideo.c:358
int time_base
time in seconds of last I,P,S Frame
Definition: mpegvideo.h:574
void ff_print_debug_info(MpegEncContext *s, Picture *p)
Print debugging info for the given picture.
Definition: mpegvideo.c:1864
int qscale
QP.
Definition: mpegvideo.h:392
int h263_aic
Advanded INTRA Coding (AIC)
Definition: mpegvideo.h:315
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode b-frame encoding.
Definition: mpegvideo.h:427
uint8_t * ref[4][4]
Definition: mpegvideo.h:241
int chroma_x_shift
Definition: mpegvideo.h:661
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:282
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:693
int field_select[2][2]
Definition: mpegvideo.h:452
void ff_MPV_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1843
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:701
int ff_epzs_motion_search(MpegEncContext *s, int *mx_ptr, int *my_ptr, int P[10][2], int src_index, int ref_index, int16_t(*last_mv)[2], int ref_mv_scale, int size, int h)
int recovered
Picture at IDR or recovery point + recovery count.
Definition: mpegvideo.h:202
int block_wrap[6]
Definition: mpegvideo.h:486
int16_t(* b_back_mv_table_base)[2]
Definition: mpegvideo.h:419
int quant_precision
Definition: mpegvideo.h:585
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:695
int modified_quant
Definition: mpegvideo.h:566
int skipdct
skip dct and code zero residual
Definition: mpegvideo.h:405
int b_frame_score
Definition: mpegvideo.h:197
#define MAX_THREADS
Definition: mpegvideo.h:64
int ref_poc[2][2][32]
h264 POCs of the frames used as reference (FIXME need per slice)
Definition: mpegvideo.h:189
int picture_in_gop_number
0-> first pic in gop, ...
Definition: mpegvideo.h:299
int long_ref
1->long term reference 0->short term reference
Definition: mpegvideo.h:188
int esc3_run_length
Definition: mpegvideo.h:625
int alt_inter_vlc
alternative inter vlc
Definition: mpegvideo.h:565
uint8_t * ptr_lastgob
Definition: mpegvideo.h:674
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:547
int64_t time
time of current frame
Definition: mpegvideo.h:575
void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
permute block according to permuatation.
Definition: mpegvideo.c:2412
int context_reinit
Definition: mpegvideo.h:717
const AVOption ff_mpv_generic_options[]
Definition: mpegvideo_enc.c:66
int16_t * dc_val_base
Definition: mpegvideo.h:372
op_pixels_func(* hpel_put)[4]
Definition: mpegvideo.h:249
uint8_t bits
Definition: crc.c:216
uint8_t
int ref_count[2][2]
number of entries in ref_poc (FIXME need per slice)
Definition: mpegvideo.h:190
Picture ** input_picture
next pictures on display order for encoding
Definition: mpegvideo.h:309
AVOptions.
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
Definition: mpegvideo.h:707
PutBitContext pb2
used for data partitioned VOPs
Definition: mpegvideo.h:595
enum OutputFormat out_format
output format
Definition: mpegvideo.h:272
void ff_denoise_dct(MpegEncContext *s, int16_t *block)
uint16_t(* dct_offset)[64]
Definition: mpegvideo.h:521
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:386
Multithreading support functions.
void ff_mpeg_unref_picture(MpegEncContext *s, Picture *picture)
Deallocate a picture.
Definition: mpegvideo.c:639
Motion estimation context.
Definition: mpegvideo.h:208
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo.c:2365
qpel_mc_func(* qpel_put)[16]
Definition: mpegvideo.h:251
int misc_bits
cbp, mb_type
Definition: mpegvideo.h:540
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
Definition: mpegvideo.h:459
int full_pel[2]
Definition: mpegvideo.h:665
int interlaced_dct
Definition: mpegvideo.h:666
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:366
GetBitContext last_resync_gb
used to search for the next resync marker
Definition: mpegvideo.h:546
int intra_dc_precision
Definition: mpegvideo.h:648
int repeat_first_field
Definition: mpegvideo.h:655
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:428
uint8_t(* mv_penalty)[MAX_MV *2+1]
amount of bits needed to encode a MV
Definition: mpegvideo.h:253
float * cplx_tab
Definition: mpegvideo.h:713
bitstream reader API header.
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:577
AVBufferRef * mb_type_buf
Definition: mpegvideo.h:109
uint8_t * b_scratchpad
scratchpad used for writing into write only buffers
Definition: mpegvideo.h:390
int flags2
AVCodecContext.flags2.
Definition: mpegvideo.h:284
op_pixels_func(* hpel_avg)[4]
Definition: mpegvideo.h:250
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:300
int ff_MPV_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:1205
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:290
int max_qcoeff
maximum encodable coefficient
Definition: mpegvideo.h:500
int16_t(*[2][2] p_field_mv_table_base)[2]
Definition: mpegvideo.h:423
int ff_wmv2_decode_picture_header(MpegEncContext *s)
Definition: wmv2dec.c:113
#define MAX_LEVEL
Definition: rl.h:35
int flipflop_rounding
Definition: mpegvideo.h:621
int dquant
qscale difference to prev qscale
Definition: mpegvideo.h:398
void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:850
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
Definition: mpegvideo.h:635
uint8_t * mb_info_ptr
Definition: mpegvideo.h:558
static void ff_update_block_index(MpegEncContext *s)
Definition: mpegvideo.h:832
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:582
AVBufferRef * mb_mean_buf
Definition: mpegvideo.h:148
int(* q_inter_matrix)[64]
Definition: mpegvideo.h:513
void(* dct_unquantize_h261_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:697
int ff_MPV_encode_init(AVCodecContext *avctx)
static int get_bits_diff(MpegEncContext *s)
Definition: mpegvideo.h:846
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
Definition: mpegvideo.h:512
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:270
ThreadFrame tf
Definition: mpegvideo.h:101
void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: mpeg12enc.c:353
int16_t * dc_val[3]
used for mpeg4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:373
int h263_plus
h263 plus headers
Definition: mpegvideo.h:277
H263DSPContext h263dsp
Definition: mpegvideo.h:414
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:342
int last_non_b_pict_type
used for mpeg4 gmc b-frames & ratecontrol
Definition: mpegvideo.h:401
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:105
int ff_wmv2_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: wmv2enc.c:69
uint8_t * mbskip_table
Definition: mpegvideo.h:137
int stream_codec_tag
internal stream_codec_tag upper case converted from avctx stream_codec_tag
Definition: mpegvideo.h:291
int last_dc[3]
last DC values for MPEG1
Definition: mpegvideo.h:371
int16_t direct_scale_mv[2][64]
precomputed to avoid divisions in ff_mpeg4_set_direct_mv
Definition: mpegvideo.h:455
uint8_t * inter_ac_vlc_last_length
Definition: mpegvideo.h:505
void ff_MPV_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:41
static int ff_h263_round_chroma(int x)
Definition: mpegvideo.h:855
int rl_chroma_table_index
Definition: mpegvideo.h:616
int64_t total_bits
Definition: mpegvideo.h:526
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:381
int chroma_y_shift
Definition: mpegvideo.h:662
int strict_std_compliance
strictly follow the std (MPEG4, ...)
Definition: mpegvideo.h:288
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:590
void ff_MPV_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:1019
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:408
ERContext er
Definition: mpegvideo.h:719
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:404
int reference
Definition: mpegvideo.h:200
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegvideo.h:387
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:691
int per_mb_rl_table
Definition: mpegvideo.h:623
int ff_wmv2_decode_secondary_picture_header(MpegEncContext *s)
Definition: wmv2dec.c:133
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:685
int h263_slice_structured
Definition: mpegvideo.h:564
int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
Definition: mpegvideo.c:703
void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: msmpeg4enc.c:215
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:586
uint16_t * mb_type
Table for candidate MB types for encoding.
Definition: mpegvideo.h:466
int low_delay
no reordering needed / has no b-frames
Definition: mpegvideo.h:591
rl header.
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
Definition: mpegvideo.c:844
GetBitContext gb
Definition: mpegvideo.h:632
int(* decode_mb)(struct MpegEncContext *s, int16_t block[6][64])
Definition: mpegvideo.h:679
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:434
void ff_fix_long_mvs(MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)
Definition: motion_est.c:1703
int ff_MPV_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1363
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:72
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:544
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:297
int * lambda_table
Definition: mpegvideo.h:396
AVBufferRef * hwaccel_priv_buf
Definition: mpegvideo.h:151
uint8_t * intra_ac_vlc_last_length
Definition: mpegvideo.h:503
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:583
uint8_t * src[4][4]
Definition: mpegvideo.h:240
int intra_vlc_format
Definition: mpegvideo.h:653
const uint8_t ff_h263_chroma_qscale_table[32]
Definition: h263data.h:262
int err_recognition
Definition: mpegvideo.h:549
AVBufferRef * motion_val_buf[2]
Definition: mpegvideo.h:106
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
Half-pel DSP context.
Definition: hpeldsp.h:45
int progressive_frame
Definition: mpegvideo.h:664
void ff_mpeg_er_frame_start(MpegEncContext *s)
void ff_free_picture_tables(Picture *pic)
Definition: mpegvideo.c:503
int top_field_first
Definition: mpegvideo.h:650
uint16_t(* q_inter_matrix16)[2][64]
Definition: mpegvideo.h:516
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
Definition: mpegvideo.h:637
int fixed_qscale
fixed qscale if non zero
Definition: mpegvideo.h:281
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed b frames
Definition: mpegvideo.h:548
int me_method
ME algorithm.
Definition: mpegvideo.h:435
int poc
h264 frame POC
Definition: mpegvideo.h:183
int umvplus
== H263+ && unrestricted_mv
Definition: mpegvideo.h:562
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:360
int intra_quant_bias
bias for the quantizer
Definition: mpegvideo.h:497
uint8_t * mbskip_table
used to avoid copy if macroblock skipped (for black regions for example) and used for b-frame encodin...
Definition: mpegvideo.h:382
int ff_init_me(MpegEncContext *s)
Definition: motion_est.c:295
int16_t(*[2] motion_val)[2]
Definition: mpegvideo.h:107
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:370
void ff_mspel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], int motion_x, int motion_y, int h)
Definition: wmv2.c:90
Picture.
Definition: mpegvideo.h:99
int alternate_scan
Definition: mpegvideo.h:654
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:603
void * hwaccel_picture_private
hardware accelerator private data
Definition: mpegvideo.h:155
int coded_score[8]
Definition: mpegvideo.h:509
void ff_msmpeg4_encode_init(MpegEncContext *s)
Definition: msmpeg4enc.c:116
int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function called after decoding the header and before a frame is decoded.
Definition: mpegvideo.c:1628
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:379
const uint8_t ff_mpeg1_dc_scale_table[128]
Definition: mpegvideo.c:52
int ff_find_unused_picture(MpegEncContext *s, int shared)
Definition: mpegvideo.c:1610
uint16_t(* q_intra_matrix16)[2][64]
identical to the above but for MMX & these are not permutated, second 64 entries are bias ...
Definition: mpegvideo.h:515
unsigned map_generation
Definition: mpegvideo.h:220
int16_t(*[2][2][2] b_field_mv_table_base)[2]
Definition: mpegvideo.h:424
int frame_num
h264 frame_num (raw frame_num from slice header)
Definition: mpegvideo.h:184
int(* ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]
[mb_intra][isChroma][level][run][last]
Definition: mpegvideo.h:627
int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size)
Definition: msmpeg4dec.c:544
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:418
int16_t(*[12] pblocks)[64]
Definition: mpegvideo.h:675
void ff_wmv2_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
Definition: wmv2enc.c:149
void ff_fix_long_p_mvs(MpegEncContext *s)
Definition: motion_est.c:1653
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:314
MotionEstContext me
Definition: mpegvideo.h:457
int pb_frame
PB frame mode (0 = none, 1 = base, 2 = improved)
Definition: mpegvideo.h:274
int mpeg_f_code[2][2]
Definition: mpegvideo.h:641
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:384
#define MAX_B_FRAMES
Definition: mpegvideo.h:68
void ff_MPV_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
Definition: mpegvideo.c:996
int ac_esc_length
num of bits needed to encode the longest esc
Definition: mpegvideo.h:501
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix)
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:485
int penalty_factor
an estimate of the bits required to code a given mv value, e.g.
Definition: mpegvideo.h:222
int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
void ff_mpeg_flush(AVCodecContext *avctx)
Definition: mpegvideo.c:2433
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
Definition: mpegvideo.h:489
struct MJpegContext * mjpeg_ctx
Definition: mpegvideo.h:611
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:667
int first_slice_line
used in mpeg4 too to handle resync markers
Definition: mpegvideo.h:620
int frame_pred_frame_dct
Definition: mpegvideo.h:649
void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)
Definition: wmv2.c:76
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegvideo.h:146
AVBufferRef * qscale_table_buf
Definition: mpegvideo.h:103
int16_t(* b_bidir_forw_mv_table_base)[2]
Definition: mpegvideo.h:420
Half-pel DSP functions.
int mbaff
h264 1 -> MBAFF frame 0-> not MBAFF
Definition: mpegvideo.h:191
uint16_t inter_matrix[64]
Definition: mpegvideo.h:494
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:506
int64_t last_non_b_time
Definition: mpegvideo.h:576
int concealment_motion_vectors
Definition: mpegvideo.h:651
void ff_estimate_b_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1493
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:341
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:395
Libavcodec external API header.
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:869
int h263_flv
use flv h263 header
Definition: mpegvideo.h:278
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:306
AVCodecContext * avctx
Definition: mpegvideo.h:209
void ff_MPV_common_init_x86(MpegEncContext *s)
Definition: mpegvideo.c:448
void ff_MPV_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1436
main external API structure.
Definition: avcodec.h:1054
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
void ff_MPV_encode_init_x86(MpegEncContext *s)
Definition: mpegvideoenc.c:197
ScanTable intra_scantable
Definition: mpegvideo.h:319
void(* qpel_mc_func)(uint8_t *dst, uint8_t *src, ptrdiff_t stride)
Definition: dsputil.h:81
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:378
void ff_mpeg1_encode_init(MpegEncContext *s)
Definition: mpeg12enc.c:933
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:268
void ff_MPV_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo.c:2477
MPEG1/2 tables.
const uint8_t *const ff_mpeg2_dc_scale_table[4]
Definition: mpegvideo.c:100
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
Definition: mpegvideo.h:330
int64_t user_specified_pts
last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
Definition: mpegvideo.h:326
int chroma_420_type
Definition: mpegvideo.h:656
int luma_elim_threshold
Definition: mpegvideo.h:286
Picture * picture
main picture buffer
Definition: mpegvideo.h:308
int data_partitioning
data partitioning flag from header
Definition: mpegvideo.h:589
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:504
int16_t(* blocks)[8][64]
Definition: mpegvideo.h:678
int progressive_sequence
Definition: mpegvideo.h:640
Describe the class of an AVClass context structure.
Definition: log.h:33
ScanTable intra_h_scantable
Definition: mpegvideo.h:320
const uint8_t ff_aic_dc_scale_table[32]
Definition: h263data.h:248
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced b-frame encoding.
Definition: mpegvideo.h:432
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:385
int context_initialized
Definition: mpegvideo.h:295
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:296
int slice_height
in macroblocks
Definition: mpegvideo.h:619
int use_skip_mb_code
Definition: mpegvideo.h:618
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:307
int mb_info
interval for outputting info about mb offsets as side data
Definition: mpegvideo.h:556
DSPContext dsp
pointers for accelerated dsp functions
Definition: mpegvideo.h:411
#define MAX_MV
Definition: mpegvideo.h:62
int f_code
forward MV resolution
Definition: mpegvideo.h:415
int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
int max_b_frames
max number of b-frames for encoding
Definition: mpegvideo.h:285
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:399
int bit_rate
wanted bit rate
Definition: mpegvideo.h:271
int last_mv_dir
last mv_dir, used for b frame encoding
Definition: mpegvideo.h:636
int field_poc[2]
h264 top/bottom POC
Definition: mpegvideo.h:182
int h263_pred
use mpeg4/h263 ac/dc predictions
Definition: mpegvideo.h:273
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:429
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:433
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode b-frame encoding.
Definition: mpegvideo.h:430
int ff_get_best_fcode(MpegEncContext *s, int16_t(*mv_table)[2], int type)
Definition: motion_est.c:1600
uint16_t pb_field_time
like above, just for interlaced
Definition: mpegvideo.h:580
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:375
qpel_mc_func(* qpel_avg)[16]
Definition: mpegvideo.h:252
int mc_mb_var_sum_temp
Definition: mpegvideo.h:245
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode b-frame encoding.
Definition: mpegvideo.h:426
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:302
uint8_t * best_mb
Definition: mpegvideo.h:214
MpegEncContext.
Definition: mpegvideo.h:264
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:369
int8_t * qscale_table
Definition: mpegvideo.h:104
#define MAX_RUN
Definition: rl.h:34
struct AVCodecContext * avctx
Definition: mpegvideo.h:266
uint16_t pp_field_time
Definition: mpegvideo.h:579
PutBitContext pb
bit output
Definition: mpegvideo.h:337
A reference to a data buffer.
Definition: buffer.h:81
int quantizer_noise_shaping
Definition: mpegvideo.h:710
int(* dct_error_sum)[64]
Definition: mpegvideo.h:519
int direct_basis_mv[4][2]
Definition: mpegvideo.h:212
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:301
AVBufferRef * mbskip_table_buf
Definition: mpegvideo.h:136
uint8_t * dest[3]
Definition: mpegvideo.h:487
int shared
Definition: mpegvideo.h:201
int last_pict_type
Definition: mpegvideo.h:400
int b4_stride
4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
Definition: mpegvideo.h:303
int adaptive_quant
use adaptive quantization
Definition: mpegvideo.h:397
void ff_msmpeg4_encode_ext_header(MpegEncContext *s)
Definition: msmpeg4enc.c:275
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:348
uint8_t * obmc_scratchpad
Definition: mpegvideo.h:389
int ff_rv_decode_dc(MpegEncContext *s, int n)
Definition: rv10.c:189
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:368
int co_located_mv[4][2]
mv from last P-frame for direct mode ME
Definition: mpegvideo.h:211
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there's a delay
Definition: mpegvideo.h:334
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (h263)
Definition: mpegvideo.h:376
uint32_t * map
map to avoid duplicate evaluations
Definition: mpegvideo.h:218
Core video DSP helper functions.
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:687
DSP utils.
int last_bits
temp var used for calculating the above vars
Definition: mpegvideo.h:541
int frame_rate_index
Definition: mpegvideo.h:403
int picture_structure
Definition: mpegvideo.h:642
VideoDSPContext vdsp
Definition: mpegvideo.h:413
OutputFormat
Definition: mpegvideo.h:49
int drop_frame_timecode
timecode is in drop frame format.
Definition: mpegvideo.h:668
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:545
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:677
ParseContext parse_context
Definition: mpegvideo.h:551
ratecontrol header.
int pic_id
h264 pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
Definition: mpegvideo.h:186
void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv20enc.c:32
void(* dct_unquantize_h261_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:699
PutBitContext tex_pb
used for data partitioned VOPs
Definition: mpegvideo.h:594
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:354
AVBufferRef * mc_mb_var_buf
Definition: mpegvideo.h:145
Picture ** reordered_input_picture
pointer to the next pictures in codedorder for encoding
Definition: mpegvideo.h:310
uint8_t * temp_mb[2]
Definition: mpegvideo.h:215
int rl_table_index
Definition: mpegvideo.h:615
int chroma_qscale
chroma QP
Definition: mpegvideo.h:393
struct AVFrame f
Definition: mpegvideo.h:100
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv10enc.c:31
enum AVPixelFormat ff_pixfmt_list_420[]
Definition: mpegvideo.c:107
int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
Allocate a Picture.
Definition: mpegvideo.c:587
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:689
int mb_var_sum
sum of MB variance for current frame
Definition: mpegvideo.h:194
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:706
int flags
AVCodecContext.flags (HQ, MV4, ...)
Definition: mpegvideo.h:283
int mc_mb_var_sum
motion compensated MB variance for current frame
Definition: mpegvideo.h:195
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:492
uint32_t * mb_type
Definition: mpegvideo.h:110
int rv10_version
RV10 version: 0 or 3.
Definition: mpegvideo.h:606
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:289
ScanTable inter_scantable
if inter == intra then intra should be used to reduce tha cache usage
Definition: mpegvideo.h:318
uint8_t * temp
Definition: mpegvideo.h:216
int ff_msmpeg4_decode_picture_header(MpegEncContext *s)
Definition: msmpeg4dec.c:389
int h263_long_vectors
use horrible h263v1 long vector mode
Definition: mpegvideo.h:409
int inter_quant_bias
bias for the quantizer
Definition: mpegvideo.h:498
static int ref_picture(H264Context *h, Picture *dst, Picture *src)
Definition: h264.c:290
static int first_field(int fd)
Definition: v4l2.c:212
int(* dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:705
int mv_table_index
Definition: mpegvideo.h:614
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:422
int b_code
backward MV resolution for B Frames (mpeg4)
Definition: mpegvideo.h:416
int h263_aic_dir
AIC direction: 0 = left, 1 = top.
Definition: mpegvideo.h:563
float * bits_tab
Definition: mpegvideo.h:713
int dct_count[2]
Definition: mpegvideo.h:520
AVPixelFormat
Pixel format.
Definition: pixfmt.h:63
This structure stores compressed data.
Definition: avcodec.h:950
int(* sub_motion_search)(struct MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
Definition: mpegvideo.h:255
void ff_mpeg1_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
Definition: mpeg12enc.c:924
int dc_table_index
Definition: mpegvideo.h:617
unsigned int lambda
lagrange multipler used in rate distortion
Definition: mpegvideo.h:394
void * opaque
private data for the user
Definition: mpegvideo.h:523
DSPContext.
Definition: dsputil.h:124
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:578
AVBufferRef * ref_index_buf[2]
Definition: mpegvideo.h:139
HpelDSPContext hdsp
Definition: mpegvideo.h:412
int next_lambda
next lambda used for retrying to encode a frame
Definition: mpegvideo.h:528
bitstream writer API
static int16_t block[64]
Definition: dct-test.c:170