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 "blockdsp.h"
33 #include "error_resilience.h"
34 #include "fdctdsp.h"
35 #include "get_bits.h"
36 #include "h263dsp.h"
37 #include "hpeldsp.h"
38 #include "idctdsp.h"
39 #include "me_cmp.h"
40 #include "mpegvideodsp.h"
41 #include "mpegvideoencdsp.h"
42 #include "pixblockdsp.h"
43 #include "put_bits.h"
44 #include "ratecontrol.h"
45 #include "parser.h"
46 #include "mpeg12data.h"
47 #include "qpeldsp.h"
48 #include "rl.h"
49 #include "thread.h"
50 #include "videodsp.h"
51 
52 #include "libavutil/opt.h"
53 
54 #define FRAME_SKIPPED 100
55 
61 };
62 
63 #define MAX_FCODE 7
64 #define MAX_MV 2048
65 
66 #define MAX_THREADS 16
67 
68 #define MAX_PICTURE_COUNT 32
69 
70 #define MAX_B_FRAMES 16
71 
72 #define ME_MAP_SIZE 64
73 
74 #define MAX_MB_BYTES (30*16*16*3/8 + 120)
75 
76 #define INPLACE_OFFSET 16
77 
78 #define EDGE_WIDTH 16
79 
80 /* Start codes. */
81 #define SEQ_END_CODE 0x000001b7
82 #define SEQ_START_CODE 0x000001b3
83 #define GOP_START_CODE 0x000001b8
84 #define PICTURE_START_CODE 0x00000100
85 #define SLICE_MIN_START_CODE 0x00000101
86 #define SLICE_MAX_START_CODE 0x000001af
87 #define EXT_START_CODE 0x000001b5
88 #define USER_START_CODE 0x000001b2
89 
90 /* encoding scans */
91 extern const uint8_t ff_alternate_horizontal_scan[64];
92 extern const uint8_t ff_alternate_vertical_scan[64];
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 
114 
116  int8_t *ref_index[2];
117 
119  uint16_t *mb_var;
120 
122  uint16_t *mc_mb_var;
123 
126 
132 
134 
137 
138  int b_frame_score; /* */
140 
142  int shared;
143 } Picture;
144 
148 typedef struct MotionEstContext{
150  int skip;
151  int co_located_mv[4][2];
152  int direct_basis_mv[4][2];
155  uint8_t *temp_mb[2];
158  uint32_t *map;
159  uint32_t *score_map;
160  unsigned map_generation;
169  int flags;
171  int mb_flags;
172  int pre_pass;
173  int dia_size;
174  int xmin;
175  int xmax;
176  int ymin;
177  int ymax;
178  int pred_x;
179  int pred_y;
180  uint8_t *src[4][4];
181  uint8_t *ref[4][4];
182  int stride;
183  int uvstride;
184  /* temp variables for picture complexity calculation */
188 /* cmp, chroma_cmp;*/
189  op_pixels_func (*hpel_put)[4];
190  op_pixels_func (*hpel_avg)[4];
191  qpel_mc_func (*qpel_put)[16];
192  qpel_mc_func (*qpel_avg)[16];
195  int (*sub_motion_search)(struct MpegEncContext * s,
196  int *mx_ptr, int *my_ptr, int dmin,
197  int src_index, int ref_index,
198  int size, int h);
200 
204 typedef struct MpegEncContext {
205  AVClass *class;
206 
207  int y_dc_scale, c_dc_scale;
208  int ac_pred;
209  int block_last_index[12];
210  int h263_aic;
211 
212  /* scantables */
217 
218  /* WARNING: changes above this line require updates to hardcoded
219  * offsets used in asm. */
220 
222  /* the following parameters must be initialized before encoding */
223  int width, height;
224  int gop_size;
226  int bit_rate;
227  enum OutputFormat out_format;
228  int h263_pred;
229  int pb_frame;
230 
231 /* the following codec id fields are deprecated in favor of codec_id */
232  int h263_plus;
233  int h263_flv;
234 
235  enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
237  int encoding;
238  int flags;
239  int flags2;
245  int codec_tag;
247  /* the following fields are managed internally by the encoder */
248 
249  /* sequence parameters */
253  int picture_number; //FIXME remove, unclear definition
255  int mb_width, mb_height;
256  int mb_stride;
257  int b8_stride;
258  int h_edge_pos, v_edge_pos;
259  int mb_num;
260  ptrdiff_t linesize;
261  ptrdiff_t uvlinesize;
265 
267 
270  int64_t dts_delta;
274  int64_t reordered_pts;
275 
278 
280  int end_mb_y;
283 
289 
295 
301 
307 
311  int last_dc[3];
312  int16_t *dc_val_base;
313  int16_t *dc_val[3];
319  int16_t (*ac_val_base)[16];
320  int16_t (*ac_val[3])[16];
331 
332  int qscale;
334  unsigned int lambda;
335  unsigned int lambda2;
338  int dquant;
339  int pict_type;
340  int last_pict_type; //FIXME removes
345  int skipdct;
346 
347  /* motion compensation */
350 
362  int f_code;
363  int b_code;
364  int16_t (*p_mv_table_base)[2];
365  int16_t (*b_forw_mv_table_base)[2];
366  int16_t (*b_back_mv_table_base)[2];
369  int16_t (*b_direct_mv_table_base)[2];
370  int16_t (*p_field_mv_table_base[2][2])[2];
371  int16_t (*b_field_mv_table_base[2][2][2])[2];
372  int16_t (*p_mv_table)[2];
373  int16_t (*b_forw_mv_table)[2];
374  int16_t (*b_back_mv_table)[2];
375  int16_t (*b_bidir_forw_mv_table)[2];
376  int16_t (*b_bidir_back_mv_table)[2];
377  int16_t (*b_direct_mv_table)[2];
378  int16_t (*p_field_mv_table[2][2])[2];
379  int16_t (*b_field_mv_table[2][2][2])[2];
382  int me_method;
383  int mv_dir;
384 #define MV_DIR_FORWARD 1
385 #define MV_DIR_BACKWARD 2
386 #define MV_DIRECT 4
387  int mv_type;
388 #define MV_TYPE_16X16 0
389 #define MV_TYPE_8X8 1
390 #define MV_TYPE_16X8 2
391 #define MV_TYPE_FIELD 3
392 #define MV_TYPE_DMV 4
393 
398  int mv[2][4][2];
399  int field_select[2][2];
400  int last_mv[2][2][2];
402  int16_t direct_scale_mv[2][64];
403 
405 
409  /* macroblock layer */
410  int mb_x, mb_y;
412  int mb_intra;
413  uint16_t *mb_type;
414 
415  int block_index[6];
416  int block_wrap[6];
418 
419  int *mb_index2xy;
420 
422  uint16_t intra_matrix[64];
423  uint16_t chroma_intra_matrix[64];
424  uint16_t inter_matrix[64];
425  uint16_t chroma_inter_matrix[64];
426 
437 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
438 
439  int coded_score[8];
440 
442  int (*q_intra_matrix)[64];
443  int (*q_inter_matrix)[64];
445  uint16_t (*q_intra_matrix16)[2][64];
446  uint16_t (*q_inter_matrix16)[2][64];
447 
448  /* noise reduction */
449  int (*dct_error_sum)[64];
450  int dct_count[2];
451  uint16_t (*dct_offset)[64];
452 
453  /* bit rate control */
454  int64_t total_bits;
458 
459  /* statistics, used for 2-pass encoding */
460  int mv_bits;
464  int i_count;
465  int f_count;
466  int b_count;
468  int misc_bits;
469  int last_bits;
470 
471  /* error concealment / resync */
478 
480 
481  /* H.263 specific */
483  int obmc;
484  int mb_info;
488 
489  /* H.263+ specific */
490  int umvplus;
497 
498  /* mpeg4 specific */
502  int time_base;
503  int64_t time;
505  uint16_t pp_time;
506  uint16_t pb_time;
507  uint16_t pp_field_time;
508  uint16_t pb_field_time;
510  int sprite_offset[2][2];
511  int sprite_delta[2][2];
512  int mcsel;
515  int aspect_ratio_info; //FIXME remove
519  int low_delay;
520  int vo_type;
525 
526  /* divx specific, used to workaround (many) bugs in divx5 */
528  uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
531 
532  /* RV10 specific */
535 
536  /* MJPEG specific */
538 
539  /* MSMPEG4 specific */
553  int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
555  int mspel;
556 
557  /* decompression specific */
559 
560  /* Mpeg1 specific */
564 
565  /* MPEG-2-specific - I wished not to have to support this mess. */
567  int mpeg_f_code[2][2];
568 
569  // picture structure defines are loaded from mpegutils.h
571 
582 #define CHROMA_420 1
583 #define CHROMA_422 2
584  int chroma_x_shift;//depend on pix_format, that depend on chroma_format
586 
588  int full_pel[2];
593 
594  /* RTP specific */
595  int rtp_mode;
596 
598  int16_t (*pblocks[12])[64];
599 
600  int16_t (*block)[64];
601  int16_t (*blocks)[8][64]; // for HQ mode we need to keep the best block
602  int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
603 #define SLICE_OK 0
604 #define SLICE_ERROR -1
605 #define SLICE_END -2
606 #define SLICE_NOEND -3
607 
609  int16_t *block/*align 16*/, int n, int qscale);
611  int16_t *block/*align 16*/, int n, int qscale);
613  int16_t *block/*align 16*/, int n, int qscale);
615  int16_t *block/*align 16*/, int n, int qscale);
617  int16_t *block/*align 16*/, int n, int qscale);
619  int16_t *block/*align 16*/, int n, int qscale);
620  void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
621  int16_t *block/*align 16*/, int n, int qscale);
622  void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
623  int16_t *block/*align 16*/, int n, int qscale);
624  int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
625  int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
626  void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
627 
628  int mpv_flags;
630 
631  /* temp buffers for rate control */
632  float *cplx_tab, *bits_tab;
633 
634  /* flag to indicate a reinitialization is required, e.g. after
635  * a frame size change */
637 
639 
641 
642  /* temporary frames used by b_frame_strategy = 2 */
645 
646 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
647  ((pic && pic >= old_ctx->picture && \
648  pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
649  &new_ctx->picture[pic - old_ctx->picture] : NULL)
650 
651 /* mpegvideo_enc common options */
652 #define FF_MPV_FLAG_SKIP_RD 0x0001
653 #define FF_MPV_FLAG_STRICT_GOP 0x0002
654 #define FF_MPV_FLAG_QP_RD 0x0004
655 #define FF_MPV_FLAG_CBP_RD 0x0008
656 #define FF_MPV_FLAG_NAQ 0x0010
657 #define FF_MPV_FLAG_MV0 0x0020
658 
659 #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
660 #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
661 #define FF_MPV_COMMON_OPTS \
662 { "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" },\
663 { "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" },\
664 { "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" },\
665 { "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" },\
666 { "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" },\
667 { "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
668 { "mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_MV0 }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
669 { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
670  FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
671 { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
672  FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
673 { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
674 { "error_rate", "Simulate errors in the bitstream to test error concealment.", \
675  FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },
676 
677 extern const AVOption ff_mpv_generic_options[];
678 
679 #define FF_MPV_GENERIC_CLASS(name) \
680 static const AVClass name ## _class = {\
681  .class_name = #name " encoder",\
682  .item_name = av_default_item_name,\
683  .option = ff_mpv_generic_options,\
684  .version = LIBAVUTIL_VERSION_INT,\
685 };
686 
693 
699 
702 
704 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64]);
706 
709 
711 
714 
717  const AVFrame *frame, int *got_packet);
718 
720 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
723 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
725 void ff_denoise_dct(MpegEncContext *s, int16_t *block);
728 void ff_set_qscale(MpegEncContext * s, int qscale);
729 
731 void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
732  const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
733 int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
734 
736 
738  uint8_t *dest_y, uint8_t *dest_cb,
739  uint8_t *dest_cr, int dir,
740  uint8_t **ref_picture,
741  op_pixels_func (*pix_op)[4],
742  qpel_mc_func (*qpix_op)[16]);
743 
748 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
749 
754 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last);
755 
756 static inline void ff_update_block_index(MpegEncContext *s){
757  const int block_size = 8;
758 
759  s->block_index[0]+=2;
760  s->block_index[1]+=2;
761  s->block_index[2]+=2;
762  s->block_index[3]+=2;
763  s->block_index[4]++;
764  s->block_index[5]++;
765  s->dest[0]+= 2*block_size;
766  s->dest[1]+= block_size;
767  s->dest[2]+= block_size;
768 }
769 
770 static inline int get_bits_diff(MpegEncContext *s){
771  const int bits= put_bits_count(&s->pb);
772  const int last= s->last_bits;
773 
774  s->last_bits = bits;
775 
776  return bits - last;
777 }
778 
779 static inline int ff_h263_round_chroma(int x){
780  static const uint8_t h263_chroma_roundtab[16] = {
781  // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
782  0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
783  };
784  return h263_chroma_roundtab[x & 0xf] + (x >> 3);
785 }
786 
787 /* motion_est.c */
789  int mb_x, int mb_y);
791  int mb_x, int mb_y);
792 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
794 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
795  int16_t (*mv_table)[2], int f_code, int type, int truncate);
796 int ff_init_me(MpegEncContext *s);
797 int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
798 int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
799  int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
800  int ref_mv_scale, int size, int h);
801 int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
802  int ref_index, int size, int h, int add_rate);
803 
804 /* mpeg12.c */
805 extern const uint8_t ff_mpeg1_dc_scale_table[128];
806 extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
807 
810  int16_t block[6][64],
811  int motion_x, int motion_y);
814 
815 extern const uint8_t ff_aic_dc_scale_table[32];
816 extern const uint8_t ff_h263_chroma_qscale_table[32];
817 
818 /* rv10.c */
819 int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
820 int ff_rv_decode_dc(MpegEncContext *s, int n);
821 void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);
822 
823 
824 /* msmpeg4.c */
825 void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
828  int16_t block[6][64],
829  int motion_x, int motion_y);
831 int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
836 void ff_wmv2_add_mb(MpegEncContext *s, int16_t block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
838  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
839  uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
840  int motion_x, int motion_y, int h);
841 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
843  int16_t block[6][64],
844  int motion_x, int motion_y);
845 
849 
850 #endif /* AVCODEC_MPEGVIDEO_H */
int last_time_base
Definition: mpegvideo.h:501
int bitstream_buffer_size
Definition: mpegvideo.h:529
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free
Definition: mpegvideo.h:153
int inter_intra_pred
Definition: mpegvideo.h:554
int ff_pre_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1064
int chroma_elim_threshold
Definition: mpegvideo.h:242
int rv10_first_dc_coded[3]
Definition: mpegvideo.h:534
int frame_bits
bits used for the current frame
Definition: mpegvideo.h:455
IDCTDSPContext idsp
Definition: mpegvideo.h:354
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
Definition: mpegvideo.h:457
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:368
int8_t * ref_index[2]
Definition: mpegvideo.h:116
int aspect_ratio_info
Definition: mpegvideo.h:515
int picture_number
Definition: mpegvideo.h:253
ScanTable intra_v_scantable
Definition: mpegvideo.h:216
AVBufferRef * mb_var_buf
Definition: mpegvideo.h:118
rate control context.
Definition: ratecontrol.h:63
int size
int esc3_level_length
Definition: mpegvideo.h:550
int time_increment_bits
< number of bits to represent the fractional part of time (encoder only)
Definition: mpegvideo.h:500
This structure describes decoded (raw) audio or video data.
Definition: frame.h:135
void ff_mpeg1_encode_slice_header(MpegEncContext *s)
Definition: mpeg12enc.c:352
int skip
set if ME is skipped for the current MB
Definition: mpegvideo.h:150
int16_t(* p_mv_table)[2]
MV table (1MV per MB) p-frame encoding.
Definition: mpegvideo.h:372
uint8_t * rd_scratchpad
scratchpad for rate distortion mb decision
Definition: mpegvideo.h:328
AVOption.
Definition: opt.h:234
uint8_t * fcode_tab
smallest fcode needed for each MV
Definition: mpegvideo.h:401
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:279
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:314
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegvideo.h:125
static int RENAME() dct_quantize(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
int sprite_warping_accuracy
Definition: mpegvideo.h:516
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG1 & B-frame MPEG4
Definition: mpegvideo.h:400
int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:1235
int pre_pass
= 1 for the pre pass
Definition: mpegvideo.h:172
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:2368
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:618
AVFrame * tmp_frames[MAX_B_FRAMES+2]
Definition: mpegvideo.h:643
const uint8_t ff_alternate_vertical_scan[64]
Definition: mpegvideo.c:121
uint8_t * coded_block_base
Definition: mpegvideo.h:317
#define Picture
Definition: vda.h:41
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:280
uint16_t * mb_var
Table for MB variances.
Definition: mpegvideo.h:119
uint16_t chroma_intra_matrix[64]
Definition: mpegvideo.h:423
uint8_t * current_mv_penalty
Definition: mpegvideo.h:194
int16_t(*[3] ac_val)[16]
used for for mpeg4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:320
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:258
uint16_t chroma_inter_matrix[64]
Definition: mpegvideo.h:425
void ff_mpv_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1889
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:548
Scantable.
Definition: idctdsp.h:29
int needs_realloc
Picture needs to be reallocated (eg due to a frame size change)
Definition: mpegvideo.h:139
uint8_t * bitstream_buffer
Definition: mpegvideo.h:528
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:2459
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:483
int ff_msmpeg4_decode_init(AVCodecContext *avctx)
Definition: msmpeg4dec.c:281
int sub_penalty_factor
Definition: mpegvideo.h:167
int field_picture
whether or not the picture was encoded in separate fields
Definition: mpegvideo.h:133
void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
Definition: msmpeg4enc.c:371
void ff_convert_matrix(MpegEncContext *s, 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:80
int scan_offset
reserve space for SVCD scan offset user data.
Definition: mpegvideo.h:592
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced p-frame encoding.
Definition: mpegvideo.h:378
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:364
int min_qcoeff
minimum encodable coefficient
Definition: mpegvideo.h:429
int real_sprite_warping_points
Definition: mpegvideo.h:509
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:159
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:2075
int pre_penalty_factor
Definition: mpegvideo.h:161
int scene_change_score
Definition: mpegvideo.h:187
int mpv_flags
flags set by private options
Definition: mpegvideo.h:628
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:432
int padding_bug_score
used to detect the VERY common padding bug in MPEG4
Definition: mpegvideo.h:524
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:259
QpelDSPContext qdsp
Definition: mpegvideo.h:359
int time_base
time in seconds of last I,P,S Frame
Definition: mpegvideo.h:502
void ff_print_debug_info(MpegEncContext *s, Picture *p)
Print debugging info for the given picture.
Definition: mpegvideo.c:1910
int qscale
QP.
Definition: mpegvideo.h:332
int h263_aic
Advanded INTRA Coding (AIC)
Definition: mpegvideo.h:210
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode b-frame encoding.
Definition: mpegvideo.h:374
int chroma_x_shift
Definition: mpegvideo.h:584
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:237
int field_select[2][2]
Definition: mpegvideo.h:399
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:416
int16_t(* b_back_mv_table_base)[2]
Definition: mpegvideo.h:366
int quant_precision
Definition: mpegvideo.h:513
int modified_quant
Definition: mpegvideo.h:494
int skipdct
skip dct and code zero residual
Definition: mpegvideo.h:345
int b_frame_score
Definition: mpegvideo.h:138
#define MAX_THREADS
Definition: mpegvideo.h:66
int picture_in_gop_number
0-> first pic in gop, ...
Definition: mpegvideo.h:254
int esc3_run_length
Definition: mpegvideo.h:551
int alt_inter_vlc
alternative inter vlc
Definition: mpegvideo.h:493
uint8_t * ptr_lastgob
Definition: mpegvideo.h:597
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:475
int64_t time
time of current frame
Definition: mpegvideo.h:503
void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
permute block according to permuatation.
Definition: mpegvideo.c:2408
int context_reinit
Definition: mpegvideo.h:636
const AVOption ff_mpv_generic_options[]
Definition: mpegvideo_enc.c:75
int16_t * dc_val_base
Definition: mpegvideo.h:312
uint8_t bits
Definition: crc.c:251
uint8_t
Picture ** input_picture
next pictures on display order for encoding
Definition: mpegvideo.h:263
AVOptions.
PutBitContext pb2
used for data partitioned VOPs
Definition: mpegvideo.h:522
void ff_denoise_dct(MpegEncContext *s, int16_t *block)
uint16_t(* dct_offset)[64]
Definition: mpegvideo.h:451
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 * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:326
Multithreading support functions.
void ff_mpeg_unref_picture(MpegEncContext *s, Picture *picture)
Deallocate a picture.
Definition: mpegvideo.c:669
Motion estimation context.
Definition: mpegvideo.h:148
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo.c:2361
int misc_bits
cbp, mb_type
Definition: mpegvideo.h:468
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
Definition: mpegvideo.h:406
int interlaced_dct
Definition: mpegvideo.h:589
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:306
GetBitContext last_resync_gb
used to search for the next resync marker
Definition: mpegvideo.h:474
int intra_dc_precision
Definition: mpegvideo.h:572
int repeat_first_field
Definition: mpegvideo.h:579
void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:43
quarterpel DSP functions
void ff_mpv_common_init_ppc(MpegEncContext *s)
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:375
float * cplx_tab
Definition: mpegvideo.h:632
bitstream reader API header.
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:505
AVBufferRef * mb_type_buf
Definition: mpegvideo.h:109
uint8_t * b_scratchpad
scratchpad used for writing into write only buffers
Definition: mpegvideo.h:330
int flags2
AVCodecContext.flags2.
Definition: mpegvideo.h:239
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:245
int max_qcoeff
maximum encodable coefficient
Definition: mpegvideo.h:430
int16_t(*[2][2] p_field_mv_table_base)[2]
Definition: mpegvideo.h:370
int ff_wmv2_decode_picture_header(MpegEncContext *s)
Definition: wmv2dec.c:114
#define MAX_LEVEL
Definition: rl.h:35
int flipflop_rounding
Definition: mpegvideo.h:547
int dquant
qscale difference to prev qscale
Definition: mpegvideo.h:338
void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:859
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
Definition: mpegvideo.h:561
uint8_t * mb_info_ptr
Definition: mpegvideo.h:486
static void ff_update_block_index(MpegEncContext *s)
Definition: mpegvideo.h:756
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:510
AVBufferRef * mb_mean_buf
Definition: mpegvideo.h:124
int(* q_inter_matrix)[64]
Definition: mpegvideo.h:443
static int get_bits_diff(MpegEncContext *s)
Definition: mpegvideo.h:770
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
Definition: mpegvideo.h:442
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:225
ThreadFrame tf
Definition: mpegvideo.h:101
void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: mpeg12enc.c:366
int16_t * dc_val[3]
used for mpeg4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:313
int h263_plus
h263 plus headers
Definition: mpegvideo.h:232
H263DSPContext h263dsp
Definition: mpegvideo.h:361
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:282
int last_non_b_pict_type
used for mpeg4 gmc b-frames & ratecontrol
Definition: mpegvideo.h:341
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:113
int stream_codec_tag
internal stream_codec_tag upper case converted from avctx stream_codec_tag
Definition: mpegvideo.h:246
int last_dc[3]
last DC values for MPEG1
Definition: mpegvideo.h:311
int16_t direct_scale_mv[2][64]
precomputed to avoid divisions in ff_mpeg4_set_direct_mv
Definition: mpegvideo.h:402
uint8_t * inter_ac_vlc_last_length
Definition: mpegvideo.h:435
static int ff_h263_round_chroma(int x)
Definition: mpegvideo.h:779
int rl_chroma_table_index
Definition: mpegvideo.h:542
int64_t total_bits
Definition: mpegvideo.h:454
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:321
int chroma_y_shift
Definition: mpegvideo.h:585
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
int strict_std_compliance
strictly follow the std (MPEG4, ...)
Definition: mpegvideo.h:243
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:518
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1478
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:348
ERContext er
Definition: mpegvideo.h:638
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:344
int reference
Definition: mpegvideo.h:141
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegvideo.h:327
PixblockDSPContext pdsp
Definition: mpegvideo.h:358
int per_mb_rl_table
Definition: mpegvideo.h:549
int ff_wmv2_decode_secondary_picture_header(MpegEncContext *s)
Definition: wmv2dec.c:134
int h263_slice_structured
Definition: mpegvideo.h:492
int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
Definition: mpegvideo.c:733
void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: msmpeg4enc.c:215
MpegvideoEncDSPContext mpvencdsp
Definition: mpegvideo.h:357
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:514
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:413
int low_delay
no reordering needed / has no b-frames
Definition: mpegvideo.h:519
rl header.
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
Definition: mpegvideo.c:874
GetBitContext gb
Definition: mpegvideo.h:558
enum AVCodecID codec_id
Definition: mov_chan.c:432
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:381
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:1714
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:67
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:472
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:252
int * lambda_table
Definition: mpegvideo.h:336
AVBufferRef * hwaccel_priv_buf
Definition: mpegvideo.h:127
void ff_mpv_common_init_neon(MpegEncContext *s)
Definition: mpegvideo.c:126
uint8_t * intra_ac_vlc_last_length
Definition: mpegvideo.h:433
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:511
int intra_vlc_format
Definition: mpegvideo.h:577
const uint8_t ff_h263_chroma_qscale_table[32]
Definition: h263data.h:262
int err_recognition
Definition: mpegvideo.h:477
AVBufferRef * motion_val_buf[2]
Definition: mpegvideo.h:106
Half-pel DSP context.
Definition: hpeldsp.h:45
int progressive_frame
Definition: mpegvideo.h:587
void ff_free_picture_tables(Picture *pic)
Definition: mpegvideo.c:533
int top_field_first
Definition: mpegvideo.h:574
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:1677
uint16_t(* q_inter_matrix16)[2][64]
Definition: mpegvideo.h:446
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
Definition: mpegvideo.h:563
int fixed_qscale
fixed qscale if non zero
Definition: mpegvideo.h:236
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed b frames
Definition: mpegvideo.h:476
int me_method
ME algorithm.
Definition: mpegvideo.h:382
int umvplus
== H263+ && unrestricted_mv
Definition: mpegvideo.h:490
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:300
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:608
int intra_quant_bias
bias for the quantizer
Definition: mpegvideo.h:427
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:322
int ff_init_me(MpegEncContext *s)
Definition: motion_est.c:301
int16_t(*[2] motion_val)[2]
Definition: mpegvideo.h:107
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:310
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:92
Picture.
Definition: mpegvideo.h:99
int alternate_scan
Definition: mpegvideo.h:578
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:530
void * hwaccel_picture_private
hardware accelerator private data
Definition: mpegvideo.h:131
int coded_score[8]
Definition: mpegvideo.h:439
void ff_msmpeg4_encode_init(MpegEncContext *s)
Definition: msmpeg4enc.c:116
static int decode_mb(ASV1Context *a, int16_t block[6][64])
Definition: asvdec.c:165
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:319
const uint8_t ff_mpeg1_dc_scale_table[128]
Definition: mpegvideo.c:55
int ff_find_unused_picture(MpegEncContext *s, int shared)
Definition: mpegvideo.c:1659
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:445
unsigned map_generation
Definition: mpegvideo.h:160
int16_t(*[2][2][2] b_field_mv_table_base)[2]
Definition: mpegvideo.h:371
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:622
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:365
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:620
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:1664
MotionEstContext me
Definition: mpegvideo.h:404
int pb_frame
PB frame mode (0 = none, 1 = base, 2 = improved)
Definition: mpegvideo.h:229
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:324
#define MAX_B_FRAMES
Definition: mpegvideo.h:70
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:614
int ac_esc_length
num of bits needed to encode the longest esc
Definition: mpegvideo.h:431
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:415
int penalty_factor
an estimate of the bits required to code a given mv value, e.g.
Definition: mpegvideo.h:162
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:2429
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
Definition: mpegvideo.h:419
void ff_mpv_common_init_x86(MpegEncContext *s)
Definition: mpegvideo.c:447
struct MJpegContext * mjpeg_ctx
Definition: mpegvideo.h:537
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:590
void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:408
int first_slice_line
used in mpeg4 too to handle resync markers
Definition: mpegvideo.h:546
int frame_pred_frame_dct
Definition: mpegvideo.h:573
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:78
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegvideo.h:122
AVBufferRef * qscale_table_buf
Definition: mpegvideo.h:103
int16_t(* b_bidir_forw_mv_table_base)[2]
Definition: mpegvideo.h:367
Half-pel DSP functions.
uint16_t inter_matrix[64]
Definition: mpegvideo.h:424
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:436
int64_t last_non_b_time
Definition: mpegvideo.h:504
int concealment_motion_vectors
Definition: mpegvideo.h:575
void ff_estimate_b_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1503
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:281
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:335
Libavcodec external API header.
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:899
int h263_flv
use flv h263 header
Definition: mpegvideo.h:233
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:260
AVCodecContext * avctx
Definition: mpegvideo.h:149
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:1050
BlockDSPContext bdsp
Definition: mpegvideo.h:351
int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
find the lowest MB row referenced in the MVs
Definition: mpegvideo.c:2010
main external API structure.
Definition: avcodec.h:1050
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
ScanTable intra_scantable
Definition: mpegvideo.h:214
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:318
void ff_mpeg1_encode_init(MpegEncContext *s)
Definition: mpeg12enc.c:946
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
MPEG1/2 tables.
const uint8_t *const ff_mpeg2_dc_scale_table[4]
Definition: mpegvideo.c:103
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
Definition: mpegvideo.h:270
const uint8_t ff_alternate_horizontal_scan[64]
Definition: mpegvideo.c:110
int64_t user_specified_pts
last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
Definition: mpegvideo.h:266
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:612
FDCTDSPContext fdsp
Definition: mpegvideo.h:352
int chroma_420_type
Definition: mpegvideo.h:580
int ff_mpv_encode_init(AVCodecContext *avctx)
int luma_elim_threshold
Definition: mpegvideo.h:241
Picture * picture
main picture buffer
Definition: mpegvideo.h:262
int data_partitioning
data partitioning flag from header
Definition: mpegvideo.h:517
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:434
int progressive_sequence
Definition: mpegvideo.h:566
void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.c:2351
Describe the class of an AVClass context structure.
Definition: log.h:33
ScanTable intra_h_scantable
Definition: mpegvideo.h:215
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:379
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:325
struct AVFrame * f
Definition: mpegvideo.h:100
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:616
int context_initialized
Definition: mpegvideo.h:250
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:251
int slice_height
in macroblocks
Definition: mpegvideo.h:545
int use_skip_mb_code
Definition: mpegvideo.h:544
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:261
int mb_info
interval for outputting info about mb offsets as side data
Definition: mpegvideo.h:484
#define MAX_MV
Definition: mpegvideo.h:64
int f_code
forward MV resolution
Definition: mpegvideo.h:362
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
Definition: mpegvideo.h:626
int max_b_frames
max number of b-frames for encoding
Definition: mpegvideo.h:240
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:339
quarterpel DSP context
Definition: qpeldsp.h:72
int bit_rate
wanted bit rate
Definition: mpegvideo.h:226
int last_mv_dir
last mv_dir, used for b frame encoding
Definition: mpegvideo.h:562
int h263_pred
use mpeg4/h263 ac/dc predictions
Definition: mpegvideo.h:228
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:376
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:380
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode b-frame encoding.
Definition: mpegvideo.h:377
int ff_get_best_fcode(MpegEncContext *s, int16_t(*mv_table)[2], int type)
Definition: motion_est.c:1611
uint16_t pb_field_time
like above, just for interlaced
Definition: mpegvideo.h:508
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:315
int mc_mb_var_sum_temp
Definition: mpegvideo.h:185
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode b-frame encoding.
Definition: mpegvideo.h:373
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:257
uint8_t * best_mb
Definition: mpegvideo.h:154
int height
Definition: gxfenc.c:72
MpegEncContext.
Definition: mpegvideo.h:204
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:309
int8_t * qscale_table
Definition: mpegvideo.h:104
#define MAX_RUN
Definition: rl.h:34
struct AVCodecContext * avctx
Definition: mpegvideo.h:221
uint16_t pp_field_time
Definition: mpegvideo.h:507
PutBitContext pb
bit output
Definition: mpegvideo.h:277
A reference to a data buffer.
Definition: buffer.h:81
static uint8_t mv_penalty[MAX_FCODE+1][MAX_MV *2+1]
Table of number of bits a motion vector component needs.
Definition: ituh263enc.c:46
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:356
int quantizer_noise_shaping
Definition: mpegvideo.h:629
int(* dct_error_sum)[64]
Definition: mpegvideo.h:449
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:625
MECmpContext mecc
Definition: mpegvideo.h:355
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:256
AVBufferRef * mbskip_table_buf
Definition: mpegvideo.h:112
uint8_t * dest[3]
Definition: mpegvideo.h:417
int shared
Definition: mpegvideo.h:142
int last_pict_type
Definition: mpegvideo.h:340
int adaptive_quant
use adaptive quantization
Definition: mpegvideo.h:337
void ff_msmpeg4_encode_ext_header(MpegEncContext *s)
Definition: msmpeg4enc.c:275
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:288
uint8_t * obmc_scratchpad
Definition: mpegvideo.h:329
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:308
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there&#39;s a delay
Definition: mpegvideo.h:274
int ff_mpv_encode_end(AVCodecContext *avctx)
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (h263)
Definition: mpegvideo.h:316
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1405
uint32_t * map
map to avoid duplicate evaluations
Definition: mpegvideo.h:158
Core video DSP helper functions.
int last_bits
temp var used for calculating the above vars
Definition: mpegvideo.h:469
int frame_rate_index
Definition: mpegvideo.h:343
int picture_structure
Definition: mpegvideo.h:570
void ff_mpv_encode_init_x86(MpegEncContext *s)
Definition: mpegvideoenc.c:196
VideoDSPContext vdsp
Definition: mpegvideo.h:360
OutputFormat
Definition: mpegvideo.h:56
int drop_frame_timecode
timecode is in drop frame format.
Definition: mpegvideo.h:591
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:473
ParseContext parse_context
Definition: mpegvideo.h:479
ratecontrol header.
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:521
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:294
AVBufferRef * mc_mb_var_buf
Definition: mpegvideo.h:121
Picture ** reordered_input_picture
pointer to the next pictures in codedorder for encoding
Definition: mpegvideo.h:264
int rl_table_index
Definition: mpegvideo.h:541
int chroma_qscale
chroma QP
Definition: mpegvideo.h:333
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv10enc.c:31
int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
Allocate a Picture.
Definition: mpegvideo.c:617
int mb_var_sum
sum of MB variance for current frame
Definition: mpegvideo.h:135
int flags
AVCodecContext.flags (HQ, MV4, ...)
Definition: mpegvideo.h:238
int mc_mb_var_sum
motion compensated MB variance for current frame
Definition: mpegvideo.h:136
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:422
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegvideo.h:110
void ff_mpv_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo.c:2473
int rv10_version
RV10 version: 0 or 3.
Definition: mpegvideo.h:533
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:244
ScanTable inter_scantable
if inter == intra then intra should be used to reduce tha cache usage
Definition: mpegvideo.h:213
uint8_t * temp
Definition: mpegvideo.h:156
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:349
int inter_quant_bias
bias for the quantizer
Definition: mpegvideo.h:428
int mv_table_index
Definition: mpegvideo.h:540
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:369
int b_code
backward MV resolution for B Frames (mpeg4)
Definition: mpegvideo.h:363
int h263_aic_dir
AIC direction: 0 = left, 1 = top.
Definition: mpegvideo.h:491
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
float * bits_tab
Definition: mpegvideo.h:632
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
Definition: mpegvideo.c:1027
int dct_count[2]
Definition: mpegvideo.h:450
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:610
This structure stores compressed data.
Definition: avcodec.h:950
void ff_mpeg1_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
Definition: mpeg12enc.c:937
int dc_table_index
Definition: mpegvideo.h:543
unsigned int lambda
lagrange multipler used in rate distortion
Definition: mpegvideo.h:334
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:506
AVBufferRef * ref_index_buf[2]
Definition: mpegvideo.h:115
HpelDSPContext hdsp
Definition: mpegvideo.h:353
int next_lambda
next lambda used for retrying to encode a frame
Definition: mpegvideo.h:456
bitstream writer API
static int16_t block[64]
Definition: dct-test.c:88