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 "put_bits.h"
36 #include "ratecontrol.h"
37 #include "parser.h"
38 #include "mpeg12data.h"
39 #include "rl.h"
40 #include "videodsp.h"
41 
42 #include "libavutil/opt.h"
43 
44 #define FRAME_SKIPPED 100
45 
52 };
53 
54 #define MPEG_BUF_SIZE (16 * 1024)
55 
56 #define QMAT_SHIFT_MMX 16
57 #define QMAT_SHIFT 22
58 
59 #define MAX_FCODE 7
60 #define MAX_MV 2048
61 
62 #define MAX_THREADS 16
63 
64 #define MAX_PICTURE_COUNT 32
65 
66 #define ME_MAP_SIZE 64
67 #define ME_MAP_SHIFT 3
68 #define ME_MAP_MV_BITS 11
69 
70 #define MAX_MB_BYTES (30*16*16*3/8 + 120)
71 
72 #define INPLACE_OFFSET 16
73 
74 /* Start codes. */
75 #define SEQ_END_CODE 0x000001b7
76 #define SEQ_START_CODE 0x000001b3
77 #define GOP_START_CODE 0x000001b8
78 #define PICTURE_START_CODE 0x00000100
79 #define SLICE_MIN_START_CODE 0x00000101
80 #define SLICE_MAX_START_CODE 0x000001af
81 #define EXT_START_CODE 0x000001b5
82 #define USER_START_CODE 0x000001b2
83 
88 #define DELAYED_PIC_REF 4
89 
90 struct MpegEncContext;
91 
95 typedef struct Picture{
96  struct AVFrame f;
97 
103  int16_t (*motion_val_base[2])[2];
104  uint32_t *mb_type_base;
105 #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type
106 #define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
107 #define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
108 #define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
109 #define IS_INTRA(a) ((a)&7)
110 #define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
111 #define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
112 #define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
113 #define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
114 #define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
115 #define IS_GMC(a) ((a)&MB_TYPE_GMC)
116 #define IS_16X16(a) ((a)&MB_TYPE_16x16)
117 #define IS_16X8(a) ((a)&MB_TYPE_16x8)
118 #define IS_8X16(a) ((a)&MB_TYPE_8x16)
119 #define IS_8X8(a) ((a)&MB_TYPE_8x8)
120 #define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
121 #define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
122 #define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
123 #define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
124 #define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
125 #define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
126 #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
127 #define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list))))
128 #define HAS_CBP(a) ((a)&MB_TYPE_CBP)
129 
130  int field_poc[2];
131  int poc;
132  int frame_num;
134  int pic_id;
136  int long_ref;
137  int ref_poc[2][2][32];
138  int ref_count[2][2];
139  int mbaff;
141 
144  uint16_t *mb_var;
145  uint16_t *mc_mb_var;
148  int b_frame_score; /* */
149  void *owner2;
151 } Picture;
152 
156 typedef struct MotionEstContext{
158  int skip;
159  int co_located_mv[4][2];
160  int direct_basis_mv[4][2];
166  uint32_t *map;
167  uint32_t *score_map;
168  unsigned map_generation;
177  int flags;
179  int mb_flags;
180  int pre_pass;
181  int dia_size;
182  int xmin;
183  int xmax;
184  int ymin;
185  int ymax;
186  int pred_x;
187  int pred_y;
188  uint8_t *src[4][4];
189  uint8_t *ref[4][4];
190  int stride;
191  int uvstride;
192  /* temp variables for picture complexity calculation */
196 /* cmp, chroma_cmp;*/
204  int *mx_ptr, int *my_ptr, int dmin,
205  int src_index, int ref_index,
206  int size, int h);
208 
212 typedef struct MpegEncContext {
213  AVClass *class;
215  /* the following parameters must be initialized before encoding */
216  int width, height;
217  int gop_size;
219  int bit_rate;
221  int h263_pred;
222  int pb_frame;
223 
224 /* the following codec id fields are deprecated in favor of codec_id */
225  int h263_plus;
226  int h263_flv;
227 
228  enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
230  int encoding;
231  int flags;
232  int flags2;
238  int codec_tag;
240  /* the following fields are managed internally by the encoder */
241 
242  /* sequence parameters */
246  int picture_number; //FIXME remove, unclear definition
249  int mb_stride;
250  int b8_stride;
251  int b4_stride;
253  int mb_num;
254  int linesize;
259 
261  int ac_pred;
263  int h263_aic;
264 
265  /* scantables */
270 
271  /* WARNING: changes above this line require updates to hardcoded
272  * offsets used in asm. */
273 
275 
278  int64_t dts_delta;
282  int64_t reordered_pts;
283 
286 
288  int end_mb_y;
291 
297 
303 
309 
315 
322  int last_dc[3];
323  int16_t *dc_val_base;
324  int16_t *dc_val[3];
330  int16_t (*ac_val_base)[16];
331  int16_t (*ac_val[3])[16];
342 
343  int qscale;
345  unsigned int lambda;
346  unsigned int lambda2;
349  int dquant;
350  int pict_type;
351  int last_pict_type; //FIXME removes
356  int skipdct;
357 
358  /* motion compensation */
361 
364  int f_code;
365  int b_code;
366  int16_t (*p_mv_table_base)[2];
367  int16_t (*b_forw_mv_table_base)[2];
368  int16_t (*b_back_mv_table_base)[2];
371  int16_t (*b_direct_mv_table_base)[2];
372  int16_t (*p_field_mv_table_base[2][2])[2];
373  int16_t (*b_field_mv_table_base[2][2][2])[2];
374  int16_t (*p_mv_table)[2];
375  int16_t (*b_forw_mv_table)[2];
376  int16_t (*b_back_mv_table)[2];
377  int16_t (*b_bidir_forw_mv_table)[2];
378  int16_t (*b_bidir_back_mv_table)[2];
379  int16_t (*b_direct_mv_table)[2];
380  int16_t (*p_field_mv_table[2][2])[2];
381  int16_t (*b_field_mv_table[2][2][2])[2];
384  int me_method;
385  int mv_dir;
386 #define MV_DIR_FORWARD 1
387 #define MV_DIR_BACKWARD 2
388 #define MV_DIRECT 4
389  int mv_type;
390 #define MV_TYPE_16X16 0
391 #define MV_TYPE_8X8 1
392 #define MV_TYPE_16X8 2
393 #define MV_TYPE_FIELD 3
394 #define MV_TYPE_DMV 4
395 
400  int mv[2][4][2];
401  int field_select[2][2];
402  int last_mv[2][2][2];
404  int16_t direct_scale_mv[2][64];
405 
407 
411  /* macroblock layer */
412  int mb_x, mb_y;
414  int mb_intra;
415  uint16_t *mb_type;
416 #define CANDIDATE_MB_TYPE_INTRA 0x01
417 #define CANDIDATE_MB_TYPE_INTER 0x02
418 #define CANDIDATE_MB_TYPE_INTER4V 0x04
419 #define CANDIDATE_MB_TYPE_SKIPPED 0x08
420 //#define MB_TYPE_GMC 0x10
421 
422 #define CANDIDATE_MB_TYPE_DIRECT 0x10
423 #define CANDIDATE_MB_TYPE_FORWARD 0x20
424 #define CANDIDATE_MB_TYPE_BACKWARD 0x40
425 #define CANDIDATE_MB_TYPE_BIDIR 0x80
426 
427 #define CANDIDATE_MB_TYPE_INTER_I 0x100
428 #define CANDIDATE_MB_TYPE_FORWARD_I 0x200
429 #define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
430 #define CANDIDATE_MB_TYPE_BIDIR_I 0x800
431 
432 #define CANDIDATE_MB_TYPE_DIRECT0 0x1000
433 
434  int block_index[6];
435  int block_wrap[6];
437 
438  int *mb_index2xy;
439 
441  uint16_t intra_matrix[64];
442  uint16_t chroma_intra_matrix[64];
443  uint16_t inter_matrix[64];
444  uint16_t chroma_inter_matrix[64];
445 #define QUANT_BIAS_SHIFT 8
456 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
457 
458  int coded_score[8];
459 
461  int (*q_intra_matrix)[64];
462  int (*q_inter_matrix)[64];
464  uint16_t (*q_intra_matrix16)[2][64];
465  uint16_t (*q_inter_matrix16)[2][64];
466 
467  /* noise reduction */
468  int (*dct_error_sum)[64];
469  int dct_count[2];
470  uint16_t (*dct_offset)[64];
471 
472  void *opaque;
473 
474  /* bit rate control */
475  int64_t total_bits;
479 
480  /* statistics, used for 2-pass encoding */
481  int mv_bits;
485  int i_count;
486  int f_count;
487  int b_count;
489  int misc_bits;
490  int last_bits;
491 
492  /* error concealment / resync */
499 
501 
502  /* H.263 specific */
504  int obmc;
506  int mb_info;
510 
511  /* H.263+ specific */
512  int umvplus;
519 
520  /* mpeg4 specific */
523  int time_base;
524  int64_t time;
526  uint16_t pp_time;
527  uint16_t pb_time;
528  uint16_t pp_field_time;
529  uint16_t pb_field_time;
530  int shape;
539  uint16_t sprite_traj[4][2];
540  int sprite_offset[2][2];
541  int sprite_delta[2][2];
542  int sprite_shift[2];
543  int mcsel;
549  int new_pred;
551  int aspect_ratio_info; //FIXME remove
556  int rvlc;
558  int low_delay;
559  int vo_type;
566  int t_frame;
571 
572  /* divx specific, used to workaround (many) bugs in divx5 */
576  uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
579 
581 
582  /* lavc specific stuff, used to workaround bugs in libavcodec */
584 
585  /* RV10 specific */
589 
590  /* MJPEG specific */
592  int mjpeg_vsample[3];
593  int mjpeg_hsample[3];
594 
595  /* MSMPEG4 specific */
609  int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
611  int mspel;
612 
613  /* decompression specific */
615 
616  /* Mpeg1 specific */
621 
622  /* MPEG-2-specific - I wished not to have to support this mess. */
624  int mpeg_f_code[2][2];
626 /* picture type */
627 #define PICT_TOP_FIELD 1
628 #define PICT_BOTTOM_FIELD 2
629 #define PICT_FRAME 3
630 
641 #define CHROMA_420 1
642 #define CHROMA_422 2
643 #define CHROMA_444 3
644  int chroma_x_shift;//depend on pix_format, that depend on chroma_format
646 
648  int full_pel[2];
654 
655  /* RTP specific */
656  int rtp_mode;
657 
659  int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
660  DCTELEM (*pblocks[12])[64];
661 
662  DCTELEM (*block)[64];
663  DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block
664  int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
665 #define SLICE_OK 0
666 #define SLICE_ERROR -1
667 #define SLICE_END -2
668 #define SLICE_NOEND -3
669 
671  DCTELEM *block/*align 16*/, int n, int qscale);
673  DCTELEM *block/*align 16*/, int n, int qscale);
675  DCTELEM *block/*align 16*/, int n, int qscale);
677  DCTELEM *block/*align 16*/, int n, int qscale);
679  DCTELEM *block/*align 16*/, int n, int qscale);
681  DCTELEM *block/*align 16*/, int n, int qscale);
683  DCTELEM *block/*align 16*/, int n, int qscale);
685  DCTELEM *block/*align 16*/, int n, int qscale);
686  void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
687  DCTELEM *block/*align 16*/, int n, int qscale);
688  void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
689  DCTELEM *block/*align 16*/, int n, int qscale);
690  int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
691  int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
693 
694  int mpv_flags;
696 
697  /* temp buffers for rate control */
698  float *cplx_tab, *bits_tab;
699 
700  /* flag to indicate a reinitialization is required, e.g. after
701  * a frame size change */
703 
706 
707 #define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \
708  (pic >= old_ctx->picture && pic < old_ctx->picture+old_ctx->picture_count ?\
709  &new_ctx->picture[pic - old_ctx->picture] : (Picture*) ((uint8_t*)pic - (uint8_t*)old_ctx + (uint8_t*)new_ctx))\
710  : NULL)
711 
712 /* mpegvideo_enc common options */
713 #define FF_MPV_FLAG_SKIP_RD 0x0001
714 #define FF_MPV_FLAG_STRICT_GOP 0x0002
715 #define FF_MPV_FLAG_QP_RD 0x0004
716 #define FF_MPV_FLAG_CBP_RD 0x0008
717 
718 #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
719 #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
720 #define FF_MPV_COMMON_OPTS \
721 { "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" },\
722 { "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" },\
723 { "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" },\
724 { "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" },\
725 { "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" },\
726 { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
727  FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
728 { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
729  FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
730 { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },
731 
732 extern const AVOption ff_mpv_generic_options[];
733 
734 #define FF_MPV_GENERIC_CLASS(name) \
735 static const AVClass name ## _class = {\
736  .class_name = #name " encoder",\
737  .item_name = av_default_item_name,\
738  .option = ff_mpv_generic_options,\
739  .version = LIBAVUTIL_VERSION_INT,\
740 };
741 
748 
754 void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]);
760  const AVFrame *frame, int *got_packet);
769  Picture *last, int y, int h, int picture_structure,
770  int first_field, int draw_edges, int low_delay,
771  int v_edge_pos, int h_edge_pos);
772 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
775 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
776 void ff_release_unused_pictures(MpegEncContext *s, int remove_current);
777 int ff_find_unused_picture(MpegEncContext *s, int shared);
783 const uint8_t *avpriv_mpv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state);
784 void ff_set_qscale(MpegEncContext * s, int qscale);
785 
787 
789 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
790  const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
791 int ff_dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
792 
794 void ff_copy_picture(Picture *dst, Picture *src);
795 
797  uint8_t *dest_y, uint8_t *dest_cb,
798  uint8_t *dest_cr, int dir,
799  uint8_t **ref_picture,
800  op_pixels_func (*pix_op)[4],
801  qpel_mc_func (*qpix_op)[16]);
802 
807 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
808 
809 extern const enum AVPixelFormat ff_pixfmt_list_420[];
810 extern const enum AVPixelFormat ff_hwaccel_pixfmt_list_420[];
811 
812 static inline void ff_update_block_index(MpegEncContext *s){
813  const int block_size = 8;
814 
815  s->block_index[0]+=2;
816  s->block_index[1]+=2;
817  s->block_index[2]+=2;
818  s->block_index[3]+=2;
819  s->block_index[4]++;
820  s->block_index[5]++;
821  s->dest[0]+= 2*block_size;
822  s->dest[1]+= block_size;
823  s->dest[2]+= block_size;
824 }
825 
826 static inline int get_bits_diff(MpegEncContext *s){
827  const int bits= put_bits_count(&s->pb);
828  const int last= s->last_bits;
829 
830  s->last_bits = bits;
831 
832  return bits - last;
833 }
834 
835 static inline int ff_h263_round_chroma(int x){
836  static const uint8_t h263_chroma_roundtab[16] = {
837  // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
838  0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
839  };
840  return h263_chroma_roundtab[x & 0xf] + (x >> 3);
841 }
842 
843 /* motion_est.c */
845  int mb_x, int mb_y);
847  int mb_x, int mb_y);
848 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
850 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
851  int16_t (*mv_table)[2], int f_code, int type, int truncate);
852 int ff_init_me(MpegEncContext *s);
854 int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
855  int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
856  int ref_mv_scale, int size, int h);
857 int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
858  int ref_index, int size, int h, int add_rate);
859 
860 /* mpeg12.c */
861 extern const uint8_t ff_mpeg1_dc_scale_table[128];
862 extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
863 
866  DCTELEM block[6][64],
867  int motion_x, int motion_y);
871 int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s);
872 
873 extern const uint8_t ff_aic_dc_scale_table[32];
874 extern const uint8_t ff_h263_chroma_qscale_table[32];
875 extern const uint8_t ff_h263_loop_filter_strength[32];
876 
877 /* h261.c */
881  DCTELEM block[6][64],
882  int motion_x, int motion_y);
886 
887 
888 /* rv10.c */
890 int ff_rv_decode_dc(MpegEncContext *s, int n);
892 
893 
894 /* msmpeg4.c */
898  DCTELEM block[6][64],
899  int motion_x, int motion_y);
901 int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
906 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
908  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
909  uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
910  int motion_x, int motion_y, int h);
913  DCTELEM block[6][64],
914  int motion_x, int motion_y);
915 
916 #endif /* AVCODEC_MPEGVIDEO_H */
int last_time_base
Definition: mpegvideo.h:522
int bitstream_buffer_size
Definition: mpegvideo.h:577
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free
Definition: mpegvideo.h:161
int inter_intra_pred
Definition: mpegvideo.h:610
int ff_pre_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1197
int chroma_elim_threshold
Definition: mpegvideo.h:235
int rv10_first_dc_coded[3]
Definition: mpegvideo.h:587
int frame_bits
bits used for the current frame
Definition: mpegvideo.h:476
void ff_h261_reorder_mb_index(MpegEncContext *s)
Definition: h261enc.c:107
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
Definition: mpegvideo.h:478
int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
find the lowest MB row referenced in the MVs
Definition: mpegvideo.c:2109
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:370
int aspect_ratio_info
Definition: mpegvideo.h:551
int picture_number
Definition: mpegvideo.h:246
int(* dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:690
ScanTable intra_v_scantable
Definition: mpegvideo.h:269
rate control context.
Definition: ratecontrol.h:63
int size
int esc3_level_length
Definition: mpegvideo.h:606
int time_increment_bits
number of bits to represent the fractional part of time
Definition: mpegvideo.h:521
This structure describes decoded (raw) audio or video data.
Definition: avcodec.h:989
struct MpegEncContext MpegEncContext
MpegEncContext.
void ff_mpeg1_encode_slice_header(MpegEncContext *s)
Definition: mpeg12enc.c:323
int skip
set if ME is skipped for the current MB
Definition: mpegvideo.h:158
int16_t(* p_mv_table)[2]
MV table (1MV per MB) p-frame encoding.
Definition: mpegvideo.h:374
uint8_t * rd_scratchpad
scratchpad for rate distortion mb decision
Definition: mpegvideo.h:339
AVOption.
Definition: opt.h:233
uint8_t * fcode_tab
smallest fcode needed for each MV
Definition: mpegvideo.h:403
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:287
uint8_t * interpolated[3]
halfpel luma planes.
Definition: mpegvideo.h:101
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:325
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegvideo.h:146
int vol_control_parameters
does the stream contain the low_delay flag, used to workaround buggy encoders
Definition: mpegvideo.h:560
int sprite_warping_accuracy
Definition: mpegvideo.h:552
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG1 & B-frame MPEG4
Definition: mpegvideo.h:402
void(* dct_unquantize_h261_inter)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:684
int pre_pass
= 1 for the pre pass
Definition: mpegvideo.h:180
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:676
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:2543
uint8_t * coded_block_base
Definition: mpegvideo.h:328
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:288
uint16_t * mb_var
Table for MB variances.
Definition: mpegvideo.h:144
uint16_t chroma_intra_matrix[64]
Definition: mpegvideo.h:442
int broken_link
no_output_of_prior_pics_flag
Definition: mpegvideo.h:619
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:202
int16_t(*[3] ac_val)[16]
used for for mpeg4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:331
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:252
int ff_MPV_encode_end(AVCodecContext *avctx)
int mjpeg_hsample[3]
horizontal sampling factors, default = {2, 1, 1}
Definition: mpegvideo.h:593
uint16_t chroma_inter_matrix[64]
Definition: mpegvideo.h:444
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:604
Scantable.
Definition: dsputil.h:181
int needs_realloc
Picture needs to be reallocated (eg due to a frame size change)
Definition: mpegvideo.h:150
uint8_t * bitstream_buffer
Definition: mpegvideo.h:576
enum AVCodecID codec_id
Definition: mpegvideo.h:228
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:680
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:2823
int16_t(*[2] motion_val_base)[2]
Definition: mpegvideo.h:103
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:504
int ff_msmpeg4_decode_init(AVCodecContext *avctx)
Definition: msmpeg4.c:588
int sub_penalty_factor
Definition: mpegvideo.h:175
int field_picture
whether or not the picture was encoded in separate fields
Definition: mpegvideo.h:140
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:674
int scan_offset
reserve space for SVCD scan offset user data.
Definition: mpegvideo.h:653
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced p-frame encoding.
Definition: mpegvideo.h:380
int picture_range_end
the part of picture that this context can allocate in
Definition: mpegvideo.h:320
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:72
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:366
int min_qcoeff
minimum encodable coefficient
Definition: mpegvideo.h:448
int real_sprite_warping_points
Definition: mpegvideo.h:538
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:167
int num_sprite_warping_points
Definition: mpegvideo.h:537
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:2174
int pre_penalty_factor
Definition: mpegvideo.h:169
int scene_change_score
Definition: mpegvideo.h:195
int mpv_flags
flags set by private options
Definition: mpegvideo.h:694
int mmco_reset
h264 MMCO_RESET set this 1. Reordering code must not mix pictures before and after MMCO_RESET...
Definition: mpegvideo.h:133
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:451
int padding_bug_score
used to detect the VERY common padding bug in MPEG4
Definition: mpegvideo.h:567
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:253
int t_frame
time distance of first I -> B, used for interlaced b frames
Definition: mpegvideo.h:566
uint16_t sprite_traj[4][2]
sprite trajectory points
Definition: mpegvideo.h:539
void ff_release_unused_pictures(MpegEncContext *s, int remove_current)
Definition: mpegvideo.c:1342
int ff_dct_common_init(MpegEncContext *s)
Definition: mpegvideo.c:208
int time_base
time in seconds of last I,P,S Frame
Definition: mpegvideo.h:523
int qscale
QP.
Definition: mpegvideo.h:343
int h263_aic
Advanded INTRA Coding (AIC)
Definition: mpegvideo.h:263
int reduced_res_vop
Definition: mpegvideo.h:550
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode b-frame encoding.
Definition: mpegvideo.h:376
uint8_t * ref[4][4]
Definition: mpegvideo.h:189
int chroma_x_shift
Definition: mpegvideo.h:644
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:230
int field_select[2][2]
Definition: mpegvideo.h:401
void ff_MPV_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1640
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 block_wrap[6]
Definition: mpegvideo.h:435
int16_t(* b_back_mv_table_base)[2]
Definition: mpegvideo.h:368
int quant_precision
Definition: mpegvideo.h:544
int picture_range_start
Definition: mpegvideo.h:320
int modified_quant
Definition: mpegvideo.h:516
int low_latency_sprite
Definition: mpegvideo.h:553
int skipdct
skip dct and code zero residual
Definition: mpegvideo.h:356
int b_frame_score
Definition: mpegvideo.h:148
#define MAX_THREADS
Definition: mpegvideo.h:62
int intra_dc_threshold
QP above whch the ac VLC should be used for intra dc.
Definition: mpegvideo.h:561
int ref_poc[2][2][32]
h264 POCs of the frames used as reference (FIXME need per slice)
Definition: mpegvideo.h:137
void ff_h261_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: h261enc.c:52
uint8_t * visualization_buffer[3]
temporary buffer vor MV visualization
Definition: mpegvideo.h:321
int sprite_shift[2]
sprite shift [isChroma]
Definition: mpegvideo.h:542
int picture_in_gop_number
0-> first pic in gop, ...
Definition: mpegvideo.h:247
int long_ref
1->long term reference 0->short term reference
Definition: mpegvideo.h:136
int esc3_run_length
Definition: mpegvideo.h:607
int alt_inter_vlc
alternative inter vlc
Definition: mpegvideo.h:515
uint8_t * ptr_lastgob
Definition: mpegvideo.h:658
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:496
int64_t time
time of current frame
Definition: mpegvideo.h:524
void ff_MPV_common_init_altivec(MpegEncContext *s)
int context_reinit
Definition: mpegvideo.h:702
const AVOption ff_mpv_generic_options[]
Definition: mpegvideo_enc.c:67
int16_t * dc_val_base
Definition: mpegvideo.h:323
op_pixels_func(* hpel_put)[4]
Definition: mpegvideo.h:197
uint8_t bits
Definition: crc.c:31
uint8_t
int ref_count[2][2]
number of entries in ref_poc (FIXME need per slice)
Definition: mpegvideo.h:138
DCTELEM(*[12] pblocks)[64]
Definition: mpegvideo.h:660
int ff_dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)
Picture ** input_picture
next pictures on display order for encoding
Definition: mpegvideo.h:257
AVOptions.
PutBitContext pb2
used for data partitioned VOPs
Definition: mpegvideo.h:564
enum OutputFormat out_format
output format
Definition: mpegvideo.h:220
void(* qpel_mc_func)(uint8_t *dst, uint8_t *src, int stride)
Definition: dsputil.h:144
uint16_t(* dct_offset)[64]
Definition: mpegvideo.h:470
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:337
Motion estimation context.
Definition: mpegvideo.h:156
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo.c:2534
qpel_mc_func(* qpel_put)[16]
Definition: mpegvideo.h:199
int misc_bits
cbp, mb_type
Definition: mpegvideo.h:489
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
Definition: mpegvideo.h:408
int full_pel[2]
Definition: mpegvideo.h:648
int interlaced_dct
Definition: mpegvideo.h:649
int resync_marker
could this stream contain resync markers
Definition: mpegvideo.h:557
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:314
GetBitContext last_resync_gb
used to search for the next resync marker
Definition: mpegvideo.h:495
int intra_dc_precision
Definition: mpegvideo.h:631
int repeat_first_field
Definition: mpegvideo.h:638
int cplx_estimation_trash_b
Definition: mpegvideo.h:570
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:377
void(* dct_unquantize_intra)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:686
void(* dct_unquantize_inter)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:688
uint8_t(* mv_penalty)[MAX_MV *2+1]
amount of bits needed to encode a MV
Definition: mpegvideo.h:201
float * cplx_tab
Definition: mpegvideo.h:698
void ff_msmpeg4_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
Definition: msmpeg4enc.c:370
void(* dct_unquantize_h261_intra)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:682
int showed_packed_warning
flag for having shown the warning about divxs invalid b frames
Definition: mpegvideo.h:505
bitstream reader API header.
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:526
uint8_t * b_scratchpad
scratchpad used for writing into write only buffers
Definition: mpegvideo.h:341
int flags2
AVCodecContext.flags2.
Definition: mpegvideo.h:232
op_pixels_func(* hpel_avg)[4]
Definition: mpegvideo.h:198
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:248
int ff_MPV_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:941
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:238
int max_qcoeff
maximum encodable coefficient
Definition: mpegvideo.h:449
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:670
int16_t(*[2][2] p_field_mv_table_base)[2]
Definition: mpegvideo.h:372
int ff_wmv2_decode_picture_header(MpegEncContext *s)
Definition: wmv2dec.c:114
void * owner2
pointer to the context that allocated this picture
Definition: mpegvideo.h:149
#define MAX_LEVEL
Definition: rl.h:35
int flipflop_rounding
Definition: mpegvideo.h:603
int dquant
qscale difference to prev qscale
Definition: mpegvideo.h:349
void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:976
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
Definition: mpegvideo.h:617
uint8_t * mb_info_ptr
Definition: mpegvideo.h:508
static void ff_update_block_index(MpegEncContext *s)
Definition: mpegvideo.h:812
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:540
int(* q_inter_matrix)[64]
Definition: mpegvideo.h:462
int ff_MPV_encode_init(AVCodecContext *avctx)
static int get_bits_diff(MpegEncContext *s)
Definition: mpegvideo.h:826
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
Definition: mpegvideo.h:461
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:218
void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: mpeg12enc.c:334
int16_t * dc_val[3]
used for mpeg4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:324
int h263_plus
h263 plus headers
Definition: mpegvideo.h:225
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:290
int last_non_b_pict_type
used for mpeg4 gmc b-frames & ratecontrol
Definition: mpegvideo.h:352
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:95
int ff_wmv2_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: wmv2enc.c:70
int stream_codec_tag
internal stream_codec_tag upper case converted from avctx stream_codec_tag
Definition: mpegvideo.h:239
int last_dc[3]
last DC values for MPEG1
Definition: mpegvideo.h:322
int16_t direct_scale_mv[2][64]
precomputed to avoid divisions in ff_mpeg4_set_direct_mv
Definition: mpegvideo.h:404
uint8_t * inter_ac_vlc_last_length
Definition: mpegvideo.h:454
void ff_MPV_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:42
static int ff_h263_round_chroma(int x)
Definition: mpegvideo.h:835
int rl_chroma_table_index
Definition: mpegvideo.h:598
int64_t total_bits
Definition: mpegvideo.h:475
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:332
int chroma_y_shift
Definition: mpegvideo.h:645
int strict_std_compliance
strictly follow the std (MPEG4, ...)
Definition: mpegvideo.h:236
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:555
int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s)
Find the end of the current frame in the bitstream.
Definition: mpeg12.c:2141
void ff_MPV_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:745
int cplx_estimation_trash_p
Definition: mpegvideo.h:569
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:359
ERContext er
Definition: mpegvideo.h:704
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:355
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegvideo.h:338
int per_mb_rl_table
Definition: mpegvideo.h:605
int ff_wmv2_decode_secondary_picture_header(MpegEncContext *s)
Definition: wmv2dec.c:134
int h263_slice_structured
Definition: mpegvideo.h:514
void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: msmpeg4enc.c:214
void ff_MPV_common_init_bfin(MpegEncContext *s)
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:545
uint16_t * mb_type
Table for candidate MB types for encoding.
Definition: mpegvideo.h:415
int low_delay
no reordering needed / has no b-frames
Definition: mpegvideo.h:558
rl header.
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
Definition: mpegvideo.c:574
int vol_sprite_usage
Definition: mpegvideo.h:531
GetBitContext gb
Definition: mpegvideo.h:614
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:383
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:1895
void ff_h261_encode_init(MpegEncContext *s)
Definition: h261enc.c:238
struct Picture Picture
Picture.
DCTELEM(* blocks)[8][64]
Definition: mpegvideo.h:663
int ff_MPV_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1128
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:70
int picture_count
number of allocated pictures (MAX_PICTURE_COUNT * avctx->thread_count)
Definition: mpegvideo.h:319
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:493
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:245
int * lambda_table
Definition: mpegvideo.h:347
int(* decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64])
Definition: mpegvideo.h:664
uint8_t * intra_ac_vlc_last_length
Definition: mpegvideo.h:452
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:541
uint8_t * src[4][4]
Definition: mpegvideo.h:188
int intra_vlc_format
Definition: mpegvideo.h:636
const uint8_t ff_h263_chroma_qscale_table[32]
Definition: h263data.h:262
int err_recognition
Definition: mpegvideo.h:498
const uint8_t ff_h263_loop_filter_strength[32]
Definition: h263data.h:275
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:672
int progressive_frame
Definition: mpegvideo.h:647
void ff_mpeg_er_frame_start(MpegEncContext *s)
Definition: mpegvideo.c:2843
static DCTELEM block[64]
Definition: dct-test.c:169
int top_field_first
Definition: mpegvideo.h:633
uint16_t(* q_inter_matrix16)[2][64]
Definition: mpegvideo.h:465
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
Definition: mpegvideo.h:620
int fixed_qscale
fixed qscale if non zero
Definition: mpegvideo.h:229
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed b frames
Definition: mpegvideo.h:497
int me_method
ME algorithm.
Definition: mpegvideo.h:384
int poc
h264 frame POC
Definition: mpegvideo.h:131
int umvplus
== H263+ && unrestricted_mv
Definition: mpegvideo.h:512
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:308
int intra_quant_bias
bias for the quantizer
Definition: mpegvideo.h:446
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:333
int ff_init_me(MpegEncContext *s)
Definition: motion_est.c:296
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:318
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:73
Picture.
Definition: mpegvideo.h:95
int alternate_scan
Definition: mpegvideo.h:637
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:578
int coded_score[8]
Definition: mpegvideo.h:458
void ff_msmpeg4_encode_init(MpegEncContext *s)
Definition: msmpeg4enc.c:115
int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function for encode/decode called after coding/decoding the header and before a frame is code...
Definition: mpegvideo.c:1429
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:330
const uint8_t ff_mpeg1_dc_scale_table[128]
Definition: mpegvideo.c:73
int32_t
int ff_find_unused_picture(MpegEncContext *s, int shared)
Definition: mpegvideo.c:1390
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:464
int ff_h261_get_picture_format(int width, int height)
Definition: h261enc.c:40
unsigned map_generation
Definition: mpegvideo.h:168
int16_t(*[2][2][2] b_field_mv_table_base)[2]
Definition: mpegvideo.h:373
int frame_num
h264 frame_num (raw frame_num from slice header)
Definition: mpegvideo.h:132
int(* ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]
[mb_intra][isChroma][level][run][last]
Definition: mpegvideo.h:609
int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size)
Definition: msmpeg4.c:851
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:367
void ff_fix_long_p_mvs(MpegEncContext *s)
Definition: motion_est.c:1845
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:262
MotionEstContext me
Definition: mpegvideo.h:406
void ff_wmv2_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
Definition: wmv2enc.c:150
int pb_frame
PB frame mode (0 = none, 1 = base, 2 = improved)
Definition: mpegvideo.h:222
int mpeg_f_code[2][2]
Definition: mpegvideo.h:624
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:335
void ff_MPV_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
Definition: mpegvideo.c:716
int ac_esc_length
num of bits needed to encode the longest esc
Definition: mpegvideo.h:450
int sprite_brightness_change
Definition: mpegvideo.h:536
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:434
int penalty_factor
an estimate of the bits required to code a given mv value, e.g.
Definition: mpegvideo.h:170
void ff_mpeg_flush(AVCodecContext *avctx)
Definition: mpegvideo.c:2575
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
Definition: mpegvideo.h:438
struct MJpegContext * mjpeg_ctx
Definition: mpegvideo.h:591
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:651
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, int line_size, int h)
Definition: dsputil.h:142
int mjpeg_vsample[3]
vertical sampling factors, default = {2, 1, 1}
Definition: mpegvideo.h:592
int first_slice_line
used in mpeg4 too to handle resync markers
Definition: mpegvideo.h:602
int frame_pred_frame_dct
Definition: mpegvideo.h:632
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegvideo.h:145
int16_t(* b_bidir_forw_mv_table_base)[2]
Definition: mpegvideo.h:369
int mbaff
h264 1 -> MBAFF frame 0-> not MBAFF
Definition: mpegvideo.h:139
static int width
Definition: utils.c:156
uint16_t inter_matrix[64]
Definition: mpegvideo.h:443
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:455
int64_t last_non_b_time
Definition: mpegvideo.h:525
void ff_h261_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
Definition: h261enc.c:156
int(* fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:691
int cplx_estimation_trash_i
Definition: mpegvideo.h:568
int concealment_motion_vectors
Definition: mpegvideo.h:634
void ff_estimate_b_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1636
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:289
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:346
external API header
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:597
int h263_flv
use flv h263 header
Definition: mpegvideo.h:226
AVCodecContext * avctx
Definition: mpegvideo.h:157
int8_t * qscale_table_base
Definition: mpegvideo.h:102
void ff_MPV_common_init_x86(MpegEncContext *s)
Definition: mpegvideo.c:587
uint32_t * mb_type_base
Definition: mpegvideo.h:104
void(* denoise_dct)(struct MpegEncContext *s, DCTELEM *block)
Definition: mpegvideo.h:692
void ff_MPV_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1200
main external API structure.
Definition: avcodec.h:1339
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
void ff_MPV_encode_init_x86(MpegEncContext *s)
Definition: mpegvideoenc.c:83
ScanTable intra_scantable
Definition: mpegvideo.h:267
void ff_copy_picture(Picture *dst, Picture *src)
Definition: mpegvideo.c:250
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:329
void ff_mpeg1_encode_init(MpegEncContext *s)
Definition: mpeg12enc.c:706
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:216
void ff_MPV_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo.c:2837
MPEG1/2 tables.
const uint8_t *const ff_mpeg2_dc_scale_table[4]
Definition: mpegvideo.c:121
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
Definition: mpegvideo.h:278
int64_t user_specified_pts
last non zero pts from AVFrame which was passed into avcodec_encode_video()
Definition: mpegvideo.h:274
int chroma_420_type
Definition: mpegvideo.h:639
int luma_elim_threshold
Definition: mpegvideo.h:234
Picture * picture
main picture buffer
Definition: mpegvideo.h:256
int data_partitioning
data partitioning flag from header
Definition: mpegvideo.h:554
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:453
int progressive_sequence
Definition: mpegvideo.h:623
Describe the class of an AVClass context structure.
Definition: log.h:33
ScanTable intra_h_scantable
Definition: mpegvideo.h:268
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:381
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:336
struct MotionEstContext MotionEstContext
Motion estimation context.
void ff_h261_loop_filter(MpegEncContext *s)
Definition: h261.c:36
int context_initialized
Definition: mpegvideo.h:243
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:244
int slice_height
in macroblocks
Definition: mpegvideo.h:601
int use_skip_mb_code
Definition: mpegvideo.h:600
int mb_info
interval for outputting info about mb offsets as side data
Definition: mpegvideo.h:506
DSPContext dsp
pointers for accelerated dsp functions
Definition: mpegvideo.h:362
#define MAX_MV
Definition: mpegvideo.h:60
int f_code
forward MV resolution
Definition: mpegvideo.h:364
int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
short DCTELEM
Definition: dsputil.h:39
int max_b_frames
max number of b-frames for encoding
Definition: mpegvideo.h:233
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:350
int bit_rate
wanted bit rate
Definition: mpegvideo.h:219
DCTELEM(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:662
int last_mv_dir
last mv_dir, used for b frame encoding
Definition: mpegvideo.h:618
int field_poc[2]
h264 top/bottom POC
Definition: mpegvideo.h:130
int h263_pred
use mpeg4/h263 ac/dc predictions
Definition: mpegvideo.h:221
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:378
static uint32_t state
Definition: trasher.c:27
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:382
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode b-frame encoding.
Definition: mpegvideo.h:379
int ff_get_best_fcode(MpegEncContext *s, int16_t(*mv_table)[2], int type)
Definition: motion_est.c:1792
uint16_t pb_field_time
like above, just for interlaced
Definition: mpegvideo.h:529
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:326
const uint8_t * avpriv_mpv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state)
qpel_mc_func(* qpel_avg)[16]
Definition: mpegvideo.h:200
int mc_mb_var_sum_temp
Definition: mpegvideo.h:193
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode b-frame encoding.
Definition: mpegvideo.h:375
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:250
uint8_t * best_mb
Definition: mpegvideo.h:162
int height
Definition: gxfenc.c:72
MpegEncContext.
Definition: mpegvideo.h:212
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:317
#define MAX_RUN
Definition: rl.h:34
struct AVCodecContext * avctx
Definition: mpegvideo.h:214
uint16_t pp_field_time
Definition: mpegvideo.h:528
PutBitContext pb
bit output
Definition: mpegvideo.h:285
int use_intra_dc_vlc
Definition: mpegvideo.h:562
int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize)
Definition: mpegvideo.c:272
int rvlc
reversible vlc
Definition: mpegvideo.h:556
int quantizer_noise_shaping
Definition: mpegvideo.h:695
int(* dct_error_sum)[64]
Definition: mpegvideo.h:468
void ff_MPV_common_init_axp(MpegEncContext *s)
int direct_basis_mv[4][2]
Definition: mpegvideo.h:160
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:249
void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur, Picture *last, int y, int h, int picture_structure, int first_field, int draw_edges, int low_delay, int v_edge_pos, int h_edge_pos)
Definition: mpegvideo.c:2458
uint8_t * dest[3]
Definition: mpegvideo.h:436
int last_pict_type
Definition: mpegvideo.h:351
int b4_stride
4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
Definition: mpegvideo.h:251
int adaptive_quant
use adaptive quantization
Definition: mpegvideo.h:348
void ff_msmpeg4_encode_ext_header(MpegEncContext *s)
Definition: msmpeg4enc.c:274
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:296
uint8_t * obmc_scratchpad
Definition: mpegvideo.h:340
void ff_print_debug_info(MpegEncContext *s, AVFrame *pict)
Print debugging info for the given picture.
Definition: mpegvideo.c:1802
int ff_rv_decode_dc(MpegEncContext *s, int n)
Definition: rv10.c:194
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:316
int co_located_mv[4][2]
mv from last P-frame for direct mode ME
Definition: mpegvideo.h:159
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there's a delay
Definition: mpegvideo.h:282
static void FUNCC() draw_edges(uint8_t *_buf, int _wrap, int width, int height, int w, int h, int sides)
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (h263)
Definition: mpegvideo.h:327
uint32_t * map
map to avoid duplicate evaluations
Definition: mpegvideo.h:166
Core video DSP helper functions.
DSP utils.
int last_bits
temp var used for calculating the above vars
Definition: mpegvideo.h:490
int frame_rate_index
Definition: mpegvideo.h:354
int picture_structure
Definition: mpegvideo.h:625
VideoDSPContext vdsp
Definition: mpegvideo.h:363
void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)
Definition: wmv2.c:59
void ff_mpeg1_clean_buffers(MpegEncContext *s)
Definition: mpeg12.c:657
OutputFormat
Definition: mpegvideo.h:46
int drop_frame_timecode
timecode is in drop frame format.
Definition: mpegvideo.h:652
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:494
void ff_mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
Definition: mpeg12enc.c:659
ParseContext parse_context
Definition: mpegvideo.h:500
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:134
void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv20enc.c:32
PutBitContext tex_pb
used for data partitioned VOPs
Definition: mpegvideo.h:563
int enhancement_type
Definition: mpegvideo.h:548
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:302
int linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:254
Picture ** reordered_input_picture
pointer to the next pictures in codedorder for encoding
Definition: mpegvideo.h:258
uint8_t * temp_mb[2]
Definition: mpegvideo.h:163
int rl_table_index
Definition: mpegvideo.h:597
int chroma_qscale
chroma QP
Definition: mpegvideo.h:344
struct AVFrame f
Definition: mpegvideo.h:96
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv10enc.c:31
enum AVPixelFormat ff_pixfmt_list_420[]
Definition: mpegvideo.c:128
int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
Allocate a Picture.
Definition: mpegvideo.c:359
int mb_var_sum
sum of MB variance for current frame
Definition: mpegvideo.h:142
int flags
AVCodecContext.flags (HQ, MV4, ...)
Definition: mpegvideo.h:231
void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64])
Definition: mpegvideo.c:2446
int mc_mb_var_sum
motion compensated MB variance for current frame
Definition: mpegvideo.h:143
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:441
void ff_denoise_dct(MpegEncContext *s, DCTELEM *block)
int rv10_version
RV10 version: 0 or 3.
Definition: mpegvideo.h:586
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:237
ScanTable inter_scantable
if inter == intra then intra should be used to reduce tha cache usage
Definition: mpegvideo.h:266
uint8_t * temp
Definition: mpegvideo.h:164
int32_t * mb_cmp_score
Table for MB cmp scores, for mb decision FIXME remove.
Definition: mpegvideo.h:147
int ff_msmpeg4_decode_picture_header(MpegEncContext *s)
Definition: msmpeg4.c:696
int h263_long_vectors
use horrible h263v1 long vector mode
Definition: mpegvideo.h:360
int inter_quant_bias
bias for the quantizer
Definition: mpegvideo.h:447
static int first_field(int fd)
Definition: v4l2.c:207
int mv_table_index
Definition: mpegvideo.h:596
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:371
int b_code
backward MV resolution for B Frames (mpeg4)
Definition: mpegvideo.h:365
int h263_aic_dir
AIC direction: 0 = left, 1 = top.
Definition: mpegvideo.h:513
enum AVPixelFormat ff_hwaccel_pixfmt_list_420[]
Definition: mpegvideo.c:133
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale)
Definition: mpegvideo.h:678
float * bits_tab
Definition: mpegvideo.h:698
int dct_count[2]
Definition: mpegvideo.h:469
int uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:255
AVPixelFormat
Pixel format.
Definition: pixfmt.h:63
This structure stores compressed data.
Definition: avcodec.h:898
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:203
int dc_table_index
Definition: mpegvideo.h:599
unsigned int lambda
lagrange multipler used in rate distortion
Definition: mpegvideo.h:345
void * opaque
private data for the user
Definition: mpegvideo.h:472
DSPContext.
Definition: dsputil.h:194
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:527
int next_lambda
next lambda used for retrying to encode a frame
Definition: mpegvideo.h:477
bitstream writer API