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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 FFmpeg.
7  *
8  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * mpegvideo header.
26  */
27 
28 #ifndef AVCODEC_MPEGVIDEO_H
29 #define AVCODEC_MPEGVIDEO_H
30 
31 #include <float.h>
32 
33 #include "avcodec.h"
34 #include "blockdsp.h"
35 #include "error_resilience.h"
36 #include "fdctdsp.h"
37 #include "get_bits.h"
38 #include "h264chroma.h"
39 #include "h263dsp.h"
40 #include "hpeldsp.h"
41 #include "idctdsp.h"
42 #include "me_cmp.h"
43 #include "motion_est.h"
44 #include "mpegvideodsp.h"
45 #include "mpegvideoencdsp.h"
46 #include "pixblockdsp.h"
47 #include "put_bits.h"
48 #include "ratecontrol.h"
49 #include "parser.h"
50 #include "mpegutils.h"
51 #include "mpeg12data.h"
52 #include "qpeldsp.h"
53 #include "thread.h"
54 #include "videodsp.h"
55 
56 #include "libavutil/opt.h"
57 #include "libavutil/timecode.h"
58 
59 #define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
60 
61 #define MAX_FCODE 7
62 
63 #define MAX_THREADS 32
64 #define MAX_PICTURE_COUNT 36
65 
66 #define MAX_B_FRAMES 16
67 
68 #define ME_MAP_SIZE 64
69 
70 #define MAX_MB_BYTES (30*16*16*3/8 + 120)
71 
72 #define INPLACE_OFFSET 16
73 
74 #define EDGE_WIDTH 16
75 
76 /* Start codes. */
77 #define SEQ_END_CODE 0x000001b7
78 #define SEQ_START_CODE 0x000001b3
79 #define GOP_START_CODE 0x000001b8
80 #define PICTURE_START_CODE 0x00000100
81 #define SLICE_MIN_START_CODE 0x00000101
82 #define SLICE_MAX_START_CODE 0x000001af
83 #define EXT_START_CODE 0x000001b5
84 #define USER_START_CODE 0x000001b2
85 
86 /**
87  * Picture.
88  */
89 typedef struct Picture{
90  struct AVFrame *f;
92 
94  int8_t *qscale_table;
95 
97  int16_t (*motion_val[2])[2];
98 
100  uint32_t *mb_type; ///< types and macros are defined in mpegutils.h
101 
104 
106  int8_t *ref_index[2];
107 
109  uint16_t *mb_var; ///< Table for MB variances
110 
112  uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
113 
114  int alloc_mb_width; ///< mb_width used to allocate tables
115  int alloc_mb_height; ///< mb_height used to allocate tables
116 
118  uint8_t *mb_mean; ///< Table for MB luminance
119 
121  /**
122  * hardware accelerator private data
123  */
125 
126  int field_picture; ///< whether or not the picture was encoded in separate fields
127 
128  int64_t mb_var_sum; ///< sum of MB variance for current frame
129  int64_t mc_mb_var_sum; ///< motion compensated MB variance for current frame
130 
132  int needs_realloc; ///< Picture needs to be reallocated (eg due to a frame size change)
133 
135  int shared;
136 
138 } Picture;
139 
140 typedef struct ScratchpadContext {
141  uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data
142  uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
144  uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
146 
147 /**
148  * MpegEncContext.
149  */
150 typedef struct MpegEncContext {
151  AVClass *class;
152 
154  int ac_pred;
155  int block_last_index[12]; ///< last non zero coefficient in block
156  int h263_aic; ///< Advanded INTRA Coding (AIC)
157 
158  /* scantables */
159  ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
163 
164  /* WARNING: changes above this line require updates to hardcoded
165  * offsets used in asm. */
166 
168  /* the following parameters must be initialized before encoding */
169  int width, height;///< picture size. must be a multiple of 16
170  int gop_size;
171  int intra_only; ///< if true, only intra pictures are generated
172  int bit_rate; ///< wanted bit rate
173  enum OutputFormat out_format; ///< output format
174  int h263_pred; ///< use mpeg4/h263 ac/dc predictions
175  int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved)
176 
177 /* the following codec id fields are deprecated in favor of codec_id */
178  int h263_plus; ///< h263 plus headers
179  int h263_flv; ///< use flv h263 header
180 
181  enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
182  int fixed_qscale; ///< fixed qscale if non zero
183  int encoding; ///< true if we are encoding (vs decoding)
184  int max_b_frames; ///< max number of b-frames for encoding
187  int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
188  int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
189  int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
190  /* the following fields are managed internally by the encoder */
191 
192  /* sequence parameters */
194  int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
195  int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
196  int picture_number; //FIXME remove, unclear definition
197  int picture_in_gop_number; ///< 0-> first pic in gop, ...
198  int mb_width, mb_height; ///< number of MBs horizontally & vertically
199  int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
200  int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
201  int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
202  int mb_num; ///< number of MBs of a picture
203  ptrdiff_t linesize; ///< line size, in bytes, may be different from width
204  ptrdiff_t uvlinesize; ///< line size, for chroma in bytes, may be different from width
205  Picture *picture; ///< main picture buffer
206  Picture **input_picture; ///< next pictures on display order for encoding
207  Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
208 
209  int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
210  /**
211  * pts difference between the first and second input frame, used for
212  * calculating dts of the first frame when there's a delay */
213  int64_t dts_delta;
214  /**
215  * reordered pts to be used as dts for the next output frame when there's
216  * a delay */
217  int64_t reordered_pts;
218 
219  /** bit output */
221 
222  int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
223  int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
225  int slice_context_count; ///< number of used thread_contexts
226 
227  /**
228  * copy of the previous picture structure.
229  * note, linesize & data, might not match the previous picture (for field pictures)
230  */
232 
233  /**
234  * copy of the next picture structure.
235  * note, linesize & data, might not match the next picture (for field pictures)
236  */
238 
239  /**
240  * copy of the source picture structure for encoding.
241  * note, linesize & data, might not match the source picture (for field pictures)
242  */
244 
245  /**
246  * copy of the current picture structure.
247  * note, linesize & data, might not match the current picture (for field pictures)
248  */
249  Picture current_picture; ///< buffer to store the decompressed current picture
250 
251  Picture *last_picture_ptr; ///< pointer to the previous picture.
252  Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
253  Picture *current_picture_ptr; ///< pointer to the current picture
254  int last_dc[3]; ///< last DC values for MPEG1
255  int16_t *dc_val_base;
256  int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
257  const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
258  const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
259  const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
261  uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
262  int16_t (*ac_val_base)[16];
263  int16_t (*ac_val[3])[16]; ///< used for mpeg4 AC prediction, all 3 arrays must be continuous
264  int mb_skipped; ///< MUST BE SET only during DECODING
265  uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
266  and used for b-frame encoding & decoding (contains skip table of next P Frame) */
267  uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
268  uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
269  uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
270 
272 
273  int qscale; ///< QP
274  int chroma_qscale; ///< chroma QP
275  unsigned int lambda; ///< lagrange multipler used in rate distortion
276  unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
278  int adaptive_quant; ///< use adaptive quantization
279  int dquant; ///< qscale difference to prev qscale
280  int closed_gop; ///< MPEG1/2 GOP is closed
281  int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
283  int last_pict_type; //FIXME removes
284  int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
288  int last_lambda_for[5]; ///< last lambda for a specific pict type
289  int skipdct; ///< skip dct and code zero residual
290 
291  /* motion compensation */
292  int unrestricted_mv; ///< mv can point outside of the coded picture
293  int h263_long_vectors; ///< use horrible h263v1 long vector mode
294 
307  int f_code; ///< forward MV resolution
308  int b_code; ///< backward MV resolution for B Frames (mpeg4)
309  int16_t (*p_mv_table_base)[2];
310  int16_t (*b_forw_mv_table_base)[2];
311  int16_t (*b_back_mv_table_base)[2];
314  int16_t (*b_direct_mv_table_base)[2];
315  int16_t (*p_field_mv_table_base[2][2])[2];
316  int16_t (*b_field_mv_table_base[2][2][2])[2];
317  int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
318  int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
319  int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
320  int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
321  int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
322  int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
323  int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
324  int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
327  int me_method; ///< ME algorithm
328  int mv_dir;
329 #define MV_DIR_FORWARD 1
330 #define MV_DIR_BACKWARD 2
331 #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
332  int mv_type;
333 #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
334 #define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
335 #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
336 #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
337 #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
338  /**motion vectors for a macroblock
339  first coordinate : 0 = forward 1 = backward
340  second " : depend on type
341  third " : 0 = x, 1 = y
342  */
343  int mv[2][4][2];
344  int field_select[2][2];
345  int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
346  uint8_t *fcode_tab; ///< smallest fcode needed for each MV
347  int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
348 
350 
351  int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
352  for b-frames rounding mode is always 0 */
353 
354  /* macroblock layer */
355  int mb_x, mb_y;
357  int mb_intra;
358  uint16_t *mb_type; ///< Table for candidate MB types for encoding (defines in mpegutils.h)
359 
360  int block_index[6]; ///< index to current MB in block based arrays with edges
361  int block_wrap[6];
363 
364  int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
365 
366  /** matrix transmitted in the bitstream */
367  uint16_t intra_matrix[64];
368  uint16_t chroma_intra_matrix[64];
369  uint16_t inter_matrix[64];
370  uint16_t chroma_inter_matrix[64];
371 
372  int intra_quant_bias; ///< bias for the quantizer
373  int inter_quant_bias; ///< bias for the quantizer
374  int min_qcoeff; ///< minimum encodable coefficient
375  int max_qcoeff; ///< maximum encodable coefficient
376  int ac_esc_length; ///< num of bits needed to encode the longest esc
384 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
385 
386  int coded_score[12];
387 
388  /** precomputed matrix (combine qscale and DCT renorm) */
389  int (*q_intra_matrix)[64];
391  int (*q_inter_matrix)[64];
392  /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
393  uint16_t (*q_intra_matrix16)[2][64];
394  uint16_t (*q_chroma_intra_matrix16)[2][64];
395  uint16_t (*q_inter_matrix16)[2][64];
396 
397  /* noise reduction */
398  int (*dct_error_sum)[64];
399  int dct_count[2];
400  uint16_t (*dct_offset)[64];
401 
402  /* bit rate control */
403  int64_t total_bits;
404  int frame_bits; ///< bits used for the current frame
405  int stuffing_bits; ///< bits used for stuffing
406  int next_lambda; ///< next lambda used for retrying to encode a frame
407  RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
408 
409  /* statistics, used for 2-pass encoding */
410  int mv_bits;
414  int i_count;
415  int f_count;
416  int b_count;
418  int misc_bits; ///< cbp, mb_type
419  int last_bits; ///< temp var used for calculating the above vars
420 
421  /* error concealment / resync */
422  int resync_mb_x; ///< x position of last resync marker
423  int resync_mb_y; ///< y position of last resync marker
424  GetBitContext last_resync_gb; ///< used to search for the next resync marker
425  int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
426  int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
427 
429 
430  /* H.263 specific */
432  int obmc; ///< overlapped block motion compensation
433  int mb_info; ///< interval for outputting info about mb offsets as side data
437  int ehc_mode;
438 
439  /* H.263+ specific */
440  int umvplus; ///< == H263+ && unrestricted_mv
441  int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
443  int alt_inter_vlc; ///< alternative inter vlc
447 
448  /* mpeg4 specific */
449  ///< number of bits to represent the fractional part of time (encoder only)
452  int time_base; ///< time in seconds of last I,P,S Frame
453  int64_t time; ///< time of current frame
455  uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
456  uint16_t pb_time; ///< time distance between the last b and p,s,i frame
457  uint16_t pp_field_time;
458  uint16_t pb_field_time; ///< like above, just for interlaced
460  int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
461  int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
462  int mcsel;
464  int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
465  int aspect_ratio_info; //FIXME remove
467  int data_partitioning; ///< data partitioning flag from header
468  int partitioned_frame; ///< is current frame partitioned
469  int low_delay; ///< no reordering needed / has no b-frames
470  int vo_type;
471  PutBitContext tex_pb; ///< used for data partitioned VOPs
472  PutBitContext pb2; ///< used for data partitioned VOPs
474  int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
475 
476  /* divx specific, used to workaround (many) bugs in divx5 */
478  uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
481 
482  /* RV10 specific */
483  int rv10_version; ///< RV10 version: 0 or 3
485 
486  /* MJPEG specific */
488  int esc_pos;
489 
490  /* MSMPEG4 specific */
496  int slice_height; ///< in macroblocks
497  int first_slice_line; ///< used in mpeg4 too to handle resync markers
499  int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
503  /** [mb_intra][isChroma][level][run][last] */
504  int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
506  int mspel;
507 
508  /* decompression specific */
510 
511  /* Mpeg1 specific */
512  int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
513  int last_mv_dir; ///< last mv_dir, used for b frame encoding
514  uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
515 
516  /* MPEG-2-specific - I wished not to have to support this mess. */
518  int mpeg_f_code[2][2];
519 
520  // picture structure defines are loaded from mpegutils.h
522 
534 #define CHROMA_420 1
535 #define CHROMA_422 2
536 #define CHROMA_444 3
537  int chroma_x_shift;//depend on pix_format, that depend on chroma_format
539 
541  int full_pel[2];
543  int first_field; ///< is 1 for the first field of a field picture 0 otherwise
544  int drop_frame_timecode; ///< timecode is in drop frame format.
545  int scan_offset; ///< reserve space for SVCD scan offset user data.
546 
547  /* RTP specific */
548  int rtp_mode;
549 
550  char *tc_opt_str; ///< timecode option string
551  AVTimecode tc; ///< timecode context
552 
554  int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
555  int pack_pblocks; //xvmc needs to keep blocks without gaps.
556  int16_t (*pblocks[12])[64];
557 
558  int16_t (*block)[64]; ///< points to one of the following blocks
559  int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
560  int (*decode_mb)(struct MpegEncContext *s, int16_t block[6][64]); // used by some codecs to avoid a switch()
561 #define SLICE_OK 0
562 #define SLICE_ERROR -1
563 #define SLICE_END -2 ///<end marker found
564 #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
565 
567  int16_t *block/*align 16*/, int n, int qscale);
569  int16_t *block/*align 16*/, int n, int qscale);
571  int16_t *block/*align 16*/, int n, int qscale);
573  int16_t *block/*align 16*/, int n, int qscale);
575  int16_t *block/*align 16*/, int n, int qscale);
577  int16_t *block/*align 16*/, int n, int qscale);
578  void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
579  int16_t *block/*align 16*/, int n, int qscale);
580  void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
581  int16_t *block/*align 16*/, int n, int qscale);
582  int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
583  int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
584  void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
585 
586  int mpv_flags; ///< flags set by private options
588 
589  /**
590  * ratecontrol qmin qmax limiting method
591  * 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax.
592  */
593  float rc_qsquish;
594  float rc_qmod_amp;
599  int lmin, lmax;
600 
601  char *rc_eq;
602 
603  /* temp buffers for rate control */
604  float *cplx_tab, *bits_tab;
605 
606  /* flag to indicate a reinitialization is required, e.g. after
607  * a frame size change */
609 
611 
613 
614  /* temporary frames used by b_frame_strategy = 2 */
617 
618 /* mpegvideo_enc common options */
619 #define FF_MPV_FLAG_SKIP_RD 0x0001
620 #define FF_MPV_FLAG_STRICT_GOP 0x0002
621 #define FF_MPV_FLAG_QP_RD 0x0004
622 #define FF_MPV_FLAG_CBP_RD 0x0008
623 #define FF_MPV_FLAG_NAQ 0x0010
624 #define FF_MPV_FLAG_MV0 0x0020
625 
626 #ifndef FF_MPV_OFFSET
627 #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
628 #endif
629 #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
630 #define FF_MPV_COMMON_OPTS \
631 { "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" },\
632 { "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" },\
633 { "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" },\
634 { "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" },\
635 { "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" },\
636 { "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
637 { "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" },\
638 { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
639  FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
640 { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
641  FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
642 { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
643 { "error_rate", "Simulate errors in the bitstream to test error concealment.", \
644  FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
645 {"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
646  FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \
647 {"rc_qmod_amp", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
648 {"rc_qmod_freq", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS}, \
649 {"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \
650  "defined in the section 'Expression Evaluation', the following functions are available: " \
651  "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
652  "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
653  FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
654 {"rc_init_cplx", "initial complexity for 1-pass encoding", FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
655 {"rc_buf_aggressivity", "currently useless", FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
656 {"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
657 {"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
658 {"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
659 
660 extern const AVOption ff_mpv_generic_options[];
661 
662 #define FF_MPV_GENERIC_CLASS(name) \
663 static const AVClass name ## _class = {\
664  .class_name = #name " encoder",\
665  .item_name = av_default_item_name,\
666  .option = ff_mpv_generic_options,\
667  .version = LIBAVUTIL_VERSION_INT,\
668 };
669 
670 /**
671  * Set the given MpegEncContext to common defaults (same for encoding
672  * and decoding). The changed fields will not depend upon the prior
673  * state of the MpegEncContext.
674  */
676 
678 
685 
688 
691 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64]);
693 
696 
698 
701 
704  const AVFrame *frame, int *got_packet);
705 int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase);
706 
708 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
710 
713  uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
714  int *low_delay,
715  int mb_width, int mb_height, int mb_stride, int quarter_sample);
716 
717 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
718 
719 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
720 
721 int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared);
724 void ff_set_qscale(MpegEncContext * s, int qscale);
725 
728 void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
729  const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
730 int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
731 
733 
735  uint8_t *dest_y, uint8_t *dest_cb,
736  uint8_t *dest_cr, int dir,
737  uint8_t **ref_picture,
738  op_pixels_func (*pix_op)[4],
739  qpel_mc_func (*qpix_op)[16]);
740 
741 /**
742  * Allocate a Picture.
743  * The pixels are allocated/set by calling get_buffer() if shared = 0.
744  */
746  ScratchpadContext *sc, int shared, int encoding,
748  int mb_stride, int mb_width, int mb_height, int b8_stride,
749  ptrdiff_t *linesize, ptrdiff_t *uvlinesize);
750 
753 /**
754  * permute block according to permuatation.
755  * @param last last non zero element in scantable order
756  */
757 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last);
758 
759 static inline void ff_update_block_index(MpegEncContext *s){
760  const int block_size= 8 >> s->avctx->lowres;
761 
762  s->block_index[0]+=2;
763  s->block_index[1]+=2;
764  s->block_index[2]+=2;
765  s->block_index[3]+=2;
766  s->block_index[4]++;
767  s->block_index[5]++;
768  s->dest[0]+= 2*block_size;
769  s->dest[1]+= block_size;
770  s->dest[2]+= block_size;
771 }
772 
773 static inline int get_bits_diff(MpegEncContext *s){
774  const int bits= put_bits_count(&s->pb);
775  const int last= s->last_bits;
776 
777  s->last_bits = bits;
778 
779  return bits - last;
780 }
781 
782 /* rv10.c */
784 int ff_rv_decode_dc(MpegEncContext *s, int n);
786 
790 
791 
792 #endif /* AVCODEC_MPEGVIDEO_H */
int last_time_base
Definition: mpegvideo.h:451
int bitstream_buffer_size
Definition: mpegvideo.h:479
int inter_intra_pred
Definition: mpegvideo.h:505
int chroma_elim_threshold
Definition: mpegvideo.h:186
int rv10_first_dc_coded[3]
Definition: mpegvideo.h:484
int frame_bits
bits used for the current frame
Definition: mpegvideo.h:404
IDCTDSPContext idsp
Definition: mpegvideo.h:299
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
Definition: mpegvideo.h:407
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:313
int8_t * ref_index[2]
Definition: mpegvideo.h:106
int aspect_ratio_info
Definition: mpegvideo.h:465
int picture_number
Definition: mpegvideo.h:196
const char * s
Definition: avisynth_c.h:631
#define AV_NUM_DATA_POINTERS
Definition: frame.h:172
ScanTable intra_v_scantable
Definition: mpegvideo.h:162
AVBufferRef * mb_var_buf
Definition: mpegvideo.h:108
rate control context.
Definition: ratecontrol.h:63
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:580
int esc3_level_length
Definition: mpegvideo.h:501
int time_increment_bits
< number of bits to represent the fractional part of time (encoder only)
Definition: mpegvideo.h:450
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
int16_t(* p_mv_table)[2]
MV table (1MV per MB) p-frame encoding.
Definition: mpegvideo.h:317
AVOption.
Definition: opt.h:255
uint8_t * fcode_tab
smallest fcode needed for each MV
Definition: mpegvideo.h:346
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:222
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:257
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegvideo.h:118
int sprite_warping_accuracy
Definition: mpegvideo.h:466
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG1 & B-frame MPEG4
Definition: mpegvideo.h:345
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegvideo.h:141
int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:1234
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:3148
AVFrame * tmp_frames[MAX_B_FRAMES+2]
Definition: mpegvideo.h:615
uint8_t * coded_block_base
Definition: mpegvideo.h:260
#define Picture
Definition: vda.h:40
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:223
uint16_t * mb_var
Table for MB variances.
Definition: mpegvideo.h:109
uint16_t(* q_chroma_intra_matrix16)[2][64]
Definition: mpegvideo.h:394
uint16_t chroma_intra_matrix[64]
Definition: mpegvideo.h:368
int16_t(*[3] ac_val)[16]
used for mpeg4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:263
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:201
uint16_t chroma_inter_matrix[64]
Definition: mpegvideo.h:370
void ff_mpv_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1838
#define me
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:499
Scantable.
Definition: idctdsp.h:29
int needs_realloc
Picture needs to be reallocated (eg due to a frame size change)
Definition: mpegvideo.h:132
uint8_t * bitstream_buffer
Definition: mpegvideo.h:478
enum AVCodecID codec_id
Definition: mpegvideo.h:181
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:3240
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:432
int field_picture
whether or not the picture was encoded in separate fields
Definition: mpegvideo.h:126
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:83
int scan_offset
reserve space for SVCD scan offset user data.
Definition: mpegvideo.h:545
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced p-frame encoding.
Definition: mpegvideo.h:323
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:309
int min_qcoeff
minimum encodable coefficient
Definition: mpegvideo.h:374
int real_sprite_warping_points
Definition: mpegvideo.h:459
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
int coded_score[12]
Definition: mpegvideo.h:386
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:2840
int mpv_flags
flags set by private options
Definition: mpegvideo.h:586
static AVPacket pkt
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:377
int padding_bug_score
used to detect the VERY common padding bug in MPEG4
Definition: mpegvideo.h:474
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:202
QpelDSPContext qdsp
Definition: mpegvideo.h:304
int time_base
time in seconds of last I,P,S Frame
Definition: mpegvideo.h:452
int qscale
QP.
Definition: mpegvideo.h:273
int h263_aic
Advanded INTRA Coding (AIC)
Definition: mpegvideo.h:156
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode b-frame encoding.
Definition: mpegvideo.h:319
int chroma_x_shift
Definition: mpegvideo.h:537
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:183
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:574
int field_select[2][2]
Definition: mpegvideo.h:344
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:578
int block_wrap[6]
Definition: mpegvideo.h:361
int16_t(* b_back_mv_table_base)[2]
Definition: mpegvideo.h:311
int quant_precision
Definition: mpegvideo.h:463
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:576
int modified_quant
Definition: mpegvideo.h:444
int skipdct
skip dct and code zero residual
Definition: mpegvideo.h:289
float rc_buffer_aggressivity
Definition: mpegvideo.h:597
int b_frame_score
Definition: mpegvideo.h:131
#define MAX_THREADS
Definition: mpegvideo.h:63
int alloc_mb_width
mb_width used to allocate tables
Definition: mpegvideo.h:114
int picture_in_gop_number
0-> first pic in gop, ...
Definition: mpegvideo.h:197
int esc3_run_length
Definition: mpegvideo.h:502
int alt_inter_vlc
alternative inter vlc
Definition: mpegvideo.h:443
uint8_t * ptr_lastgob
Definition: mpegvideo.h:553
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:425
int64_t time
time of current frame
Definition: mpegvideo.h:453
void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
permute block according to permuatation.
Definition: mpegvideo.c:3188
int context_reinit
Definition: mpegvideo.h:608
const AVOption ff_mpv_generic_options[]
Definition: mpegvideo_enc.c:78
AVRational mpeg2_frame_rate_ext
Definition: mpegvideo.h:287
int16_t * dc_val_base
Definition: mpegvideo.h:255
OutputFormat
Definition: mpegutils.h:118
ScratchpadContext sc
Definition: mpegvideo.h:271
uint8_t bits
Definition: crc.c:295
uint8_t
Picture ** input_picture
next pictures on display order for encoding
Definition: mpegvideo.h:206
AVOptions.
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
Definition: mpegvideo.h:584
PutBitContext pb2
used for data partitioned VOPs
Definition: mpegvideo.h:472
enum OutputFormat out_format
output format
Definition: mpegvideo.h:173
uint16_t(* dct_offset)[64]
Definition: mpegvideo.h:400
void ff_dct_encode_init_x86(MpegEncContext *s)
Definition: mpegvideoenc.c:200
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:269
Multithreading support functions.
Motion estimation context.
Definition: motion_est.h:37
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo.c:3141
int misc_bits
cbp, mb_type
Definition: mpegvideo.h:418
int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src)
Definition: mpegvideo.c:715
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
Definition: mpegvideo.h:351
int full_pel[2]
Definition: mpegvideo.h:541
int interlaced_dct
Definition: mpegvideo.h:542
int(* q_chroma_intra_matrix)[64]
Definition: mpegvideo.h:390
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:249
GetBitContext last_resync_gb
used to search for the next resync marker
Definition: mpegvideo.h:424
int intra_dc_precision
Definition: mpegvideo.h:523
int repeat_first_field
Definition: mpegvideo.h:531
void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:43
static AVFrame * frame
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:320
float * cplx_tab
Definition: mpegvideo.h:604
int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me, ScratchpadContext *sc, int shared, int encoding, int chroma_x_shift, int chroma_y_shift, int out_format, int mb_stride, int mb_width, int mb_height, int b8_stride, ptrdiff_t *linesize, ptrdiff_t *uvlinesize)
Allocate a Picture.
Definition: mpegvideo.c:585
bitstream reader API header.
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:455
AVBufferRef * mb_type_buf
Definition: mpegvideo.h:99
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:198
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2737
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:189
int max_qcoeff
maximum encodable coefficient
Definition: mpegvideo.h:375
int16_t(*[2][2] p_field_mv_table_base)[2]
Definition: mpegvideo.h:315
#define MAX_LEVEL
Definition: rl.h:35
int flipflop_rounding
Definition: mpegvideo.h:498
int dquant
qscale difference to prev qscale
Definition: mpegvideo.h:279
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
Definition: mpegvideo.h:512
uint8_t * mb_info_ptr
Definition: mpegvideo.h:435
static void ff_update_block_index(MpegEncContext *s)
Definition: mpegvideo.h:759
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:460
AVBufferRef * mb_mean_buf
Definition: mpegvideo.h:117
int(* q_inter_matrix)[64]
Definition: mpegvideo.h:391
static int get_bits_diff(MpegEncContext *s)
Definition: mpegvideo.h:773
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
Definition: mpegvideo.h:389
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:171
ThreadFrame tf
Definition: mpegvideo.h:91
int16_t * dc_val[3]
used for mpeg4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:256
int h263_plus
h263 plus headers
Definition: mpegvideo.h:178
H263DSPContext h263dsp
Definition: mpegvideo.h:306
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:225
int last_non_b_pict_type
used for mpeg4 gmc b-frames & ratecontrol
Definition: mpegvideo.h:284
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:102
uint8_t * mbskip_table
Definition: mpegvideo.h:103
int last_dc[3]
last DC values for MPEG1
Definition: mpegvideo.h:254
int16_t direct_scale_mv[2][64]
precomputed to avoid divisions in ff_mpeg4_set_direct_mv
Definition: mpegvideo.h:347
uint8_t * inter_ac_vlc_last_length
Definition: mpegvideo.h:382
int rl_chroma_table_index
Definition: mpegvideo.h:493
int64_t total_bits
Definition: mpegvideo.h:403
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:264
int chroma_y_shift
Definition: mpegvideo.h:538
int strict_std_compliance
strictly follow the std (MPEG4, ...)
Definition: mpegvideo.h:187
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:468
uint8_t * rd_scratchpad
scratchpad for rate distortion mb decision
Definition: mpegvideo.h:142
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1474
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:292
ERContext er
Definition: mpegvideo.h:610
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:288
int reference
Definition: mpegvideo.h:134
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:572
PixblockDSPContext pdsp
Definition: mpegvideo.h:303
int per_mb_rl_table
Definition: mpegvideo.h:500
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:566
uint8_t * intra_chroma_ac_vlc_length
Definition: mpegvideo.h:379
int h263_slice_structured
Definition: mpegvideo.h:442
uint64_t error[AV_NUM_DATA_POINTERS]
Definition: mpegvideo.h:137
MpegvideoEncDSPContext mpvencdsp
Definition: mpegvideo.h:302
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:464
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:358
int low_delay
no reordering needed / has no b-frames
Definition: mpegvideo.h:469
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
Definition: mpegvideo.c:852
GetBitContext gb
Definition: mpegvideo.h:509
int(* decode_mb)(struct MpegEncContext *s, int16_t block[6][64])
Definition: mpegvideo.h:560
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:326
Libavcodec external API header.
void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table, uint32_t *mbtype_table, int8_t *qscale_table, int16_t(*motion_val[2])[2], int *low_delay, int mb_width, int mb_height, int mb_stride, int quarter_sample)
Print debugging info for the given picture.
Definition: mpegvideo.c:1993
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:85
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:422
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:195
int * lambda_table
Definition: mpegvideo.h:277
int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase)
AVBufferRef * hwaccel_priv_buf
Definition: mpegvideo.h:120
void ff_mpv_common_init_neon(MpegEncContext *s)
Definition: mpegvideo.c:126
uint8_t * intra_ac_vlc_last_length
Definition: mpegvideo.h:378
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:461
int intra_vlc_format
Definition: mpegvideo.h:528
AVBufferRef * motion_val_buf[2]
Definition: mpegvideo.h:96
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
Half-pel DSP context.
Definition: hpeldsp.h:45
float border_masking
Definition: mpegvideo.h:598
int progressive_frame
Definition: mpegvideo.h:540
void ff_free_picture_tables(Picture *pic)
Definition: mpegvideo.c:485
int top_field_first
Definition: mpegvideo.h:525
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:1611
uint16_t(* q_inter_matrix16)[2][64]
Definition: mpegvideo.h:395
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
Definition: mpegvideo.h:514
int fixed_qscale
fixed qscale if non zero
Definition: mpegvideo.h:182
float y
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed b frames
Definition: mpegvideo.h:426
int me_method
ME algorithm.
Definition: mpegvideo.h:327
int umvplus
== H263+ && unrestricted_mv
Definition: mpegvideo.h:440
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:243
int intra_quant_bias
bias for the quantizer
Definition: mpegvideo.h:372
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:265
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
int16_t(*[2] motion_val)[2]
Definition: mpegvideo.h:97
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:253
Picture.
Definition: mpegvideo.h:89
int alternate_scan
Definition: mpegvideo.h:529
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:480
void * hwaccel_picture_private
hardware accelerator private data
Definition: mpegvideo.h:124
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:262
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:393
int16_t(*[2][2][2] b_field_mv_table_base)[2]
Definition: mpegvideo.h:316
int(* ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]
[mb_intra][isChroma][level][run][last]
Definition: mpegvideo.h:504
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:310
int16_t(*[12] pblocks)[64]
Definition: mpegvideo.h:556
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:155
MotionEstContext me
Definition: mpegvideo.h:349
int n
Definition: avisynth_c.h:547
int pb_frame
PB frame mode (0 = none, 1 = base, 2 = improved)
Definition: mpegvideo.h:175
int mpeg_f_code[2][2]
Definition: mpegvideo.h:518
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:267
#define MAX_B_FRAMES
Definition: mpegvideo.h:66
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
Definition: mpegvideo.c:1059
int ac_esc_length
num of bits needed to encode the longest esc
Definition: mpegvideo.h:376
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:360
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:3209
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
Definition: mpegvideo.h:364
void ff_mpv_common_init_x86(MpegEncContext *s)
Definition: mpegvideo.c:447
struct MJpegContext * mjpeg_ctx
Definition: mpegvideo.h:487
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:543
void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:346
int first_slice_line
used in mpeg4 too to handle resync markers
Definition: mpegvideo.h:497
int frame_pred_frame_dct
Definition: mpegvideo.h:524
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegvideo.h:112
AVBufferRef * qscale_table_buf
Definition: mpegvideo.h:93
int16_t(* b_bidir_forw_mv_table_base)[2]
Definition: mpegvideo.h:312
Half-pel DSP functions.
uint16_t inter_matrix[64]
Definition: mpegvideo.h:369
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:383
int64_t last_non_b_time
Definition: mpegvideo.h:454
int alloc_mb_height
mb_height used to allocate tables
Definition: mpegvideo.h:115
int concealment_motion_vectors
Definition: mpegvideo.h:526
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:224
AVS_Value src
Definition: avisynth_c.h:482
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:276
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:880
int h263_flv
use flv h263 header
Definition: mpegvideo.h:179
char * tc_opt_str
timecode option string
Definition: mpegvideo.h:550
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:203
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:1054
BlockDSPContext bdsp
Definition: mpegvideo.h:295
Timecode helpers header.
int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
find the lowest MB row referenced in the MVs
Definition: mpegvideo.c:2775
uint8_t * intra_chroma_ac_vlc_last_length
Definition: mpegvideo.h:380
main external API structure.
Definition: avcodec.h:1241
int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me, ScratchpadContext *sc, int linesize)
Definition: mpegvideo.c:364
ScanTable intra_scantable
Definition: mpegvideo.h:160
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:261
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:169
MPEG1/2 tables.
int ff_dct_encode_init(MpegEncContext *s)
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
Definition: mpegvideo.h:213
int64_t user_specified_pts
last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
Definition: mpegvideo.h:209
FDCTDSPContext fdsp
Definition: mpegvideo.h:296
int chroma_420_type
Definition: mpegvideo.h:532
float rc_qmod_amp
Definition: mpegvideo.h:594
int ff_mpv_encode_init(AVCodecContext *avctx)
int luma_elim_threshold
Definition: mpegvideo.h:185
Picture * picture
main picture buffer
Definition: mpegvideo.h:205
int data_partitioning
data partitioning flag from header
Definition: mpegvideo.h:467
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:381
int progressive_sequence
Definition: mpegvideo.h:517
void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.c:3129
Describe the class of an AVClass context structure.
Definition: log.h:67
int stuffing_bits
bits used for stuffing
Definition: mpegvideo.h:405
ScanTable intra_h_scantable
Definition: mpegvideo.h:161
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced b-frame encoding.
Definition: mpegvideo.h:324
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:268
int closed_gop
MPEG1/2 GOP is closed.
Definition: mpegvideo.h:280
int64_t mc_mb_var_sum
motion compensated MB variance for current frame
Definition: mpegvideo.h:129
rational number numerator/denominator
Definition: rational.h:43
struct AVFrame * f
Definition: mpegvideo.h:90
void ff_mpv_common_init_axp(MpegEncContext *s)
int context_initialized
Definition: mpegvideo.h:193
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:194
int slice_height
in macroblocks
Definition: mpegvideo.h:496
int use_skip_mb_code
Definition: mpegvideo.h:495
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:204
int mb_info
interval for outputting info about mb offsets as side data
Definition: mpegvideo.h:433
int f_code
forward MV resolution
Definition: mpegvideo.h:307
int max_b_frames
max number of b-frames for encoding
Definition: mpegvideo.h:184
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:281
quarterpel DSP context
Definition: qpeldsp.h:72
int bit_rate
wanted bit rate
Definition: mpegvideo.h:172
int last_mv_dir
last mv_dir, used for b frame encoding
Definition: mpegvideo.h:513
int h263_pred
use mpeg4/h263 ac/dc predictions
Definition: mpegvideo.h:174
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
Definition: mpegvideo.h:321
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:325
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode b-frame encoding.
Definition: mpegvideo.h:322
uint16_t pb_field_time
like above, just for interlaced
Definition: mpegvideo.h:458
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:258
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
Definition: mpegvideo.h:343
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode b-frame encoding.
Definition: mpegvideo.h:318
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:200
MpegEncContext.
Definition: mpegvideo.h:150
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:252
char * rc_eq
Definition: mpegvideo.h:601
int8_t * qscale_table
Definition: mpegvideo.h:94
#define MAX_RUN
Definition: rl.h:34
struct AVCodecContext * avctx
Definition: mpegvideo.h:167
uint16_t pp_field_time
Definition: mpegvideo.h:457
PutBitContext pb
bit output
Definition: mpegvideo.h:220
A reference to a data buffer.
Definition: buffer.h:81
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:301
int quantizer_noise_shaping
Definition: mpegvideo.h:587
int(* dct_error_sum)[64]
Definition: mpegvideo.h:398
MECmpContext mecc
Definition: mpegvideo.h:300
float rc_initial_cplx
Definition: mpegvideo.h:596
static const int32_t qmat16[MAT_SIZE]
Definition: hq_hqadata.c:342
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:199
AVBufferRef * mbskip_table_buf
Definition: mpegvideo.h:102
uint8_t * dest[3]
Definition: mpegvideo.h:362
int shared
Definition: mpegvideo.h:135
int last_pict_type
Definition: mpegvideo.h:283
int adaptive_quant
use adaptive quantization
Definition: mpegvideo.h:278
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:231
int ff_rv_decode_dc(MpegEncContext *s, int n)
Definition: rv10.c:196
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:251
float rc_qsquish
ratecontrol qmin qmax limiting method 0-> clipping, 1-> use a nice continuous function to limit qscal...
Definition: mpegvideo.h:593
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there's a delay
Definition: mpegvideo.h:217
uint8_t * b_scratchpad
scratchpad used for writing into write only buffers
Definition: mpegvideo.h:144
void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *picture)
Deallocate a picture.
Definition: mpegvideo.c:648
int ff_mpv_encode_end(AVCodecContext *avctx)
int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
Definition: mpegvideo.c:1577
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (h263)
Definition: mpegvideo.h:259
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1395
Core video DSP helper functions.
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:568
H264ChromaContext h264chroma
Definition: mpegvideo.h:297
int16_t(* blocks)[12][64]
Definition: mpegvideo.h:559
int last_bits
temp var used for calculating the above vars
Definition: mpegvideo.h:419
int frame_rate_index
Definition: mpegvideo.h:286
int picture_structure
Definition: mpegvideo.h:521
void ff_mpv_encode_init_x86(MpegEncContext *s)
VideoDSPContext vdsp
Definition: mpegvideo.h:305
uint8_t * obmc_scratchpad
Definition: mpegvideo.h:143
int drop_frame_timecode
timecode is in drop frame format.
Definition: mpegvideo.h:544
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:423
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:558
ParseContext parse_context
Definition: mpegvideo.h:428
ratecontrol header.
void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv20enc.c:33
PutBitContext tex_pb
used for data partitioned VOPs
Definition: mpegvideo.h:471
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:237
AVBufferRef * mc_mb_var_buf
Definition: mpegvideo.h:111
Picture ** reordered_input_picture
pointer to the next pictures in codedorder for encoding
Definition: mpegvideo.h:207
int rl_table_index
Definition: mpegvideo.h:492
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
Definition: mpegvideo.c:2377
int chroma_qscale
chroma QP
Definition: mpegvideo.h:274
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
Definition: mpegvideo.c:2370
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
Definition: rv10enc.c:31
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:570
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:583
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:367
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegvideo.h:100
void ff_mpv_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo.c:3254
int rv10_version
RV10 version: 0 or 3.
Definition: mpegvideo.h:483
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:188
ScanTable inter_scantable
if inter == intra then intra should be used to reduce tha cache usage
Definition: mpegvideo.h:159
int h263_long_vectors
use horrible h263v1 long vector mode
Definition: mpegvideo.h:293
int inter_quant_bias
bias for the quantizer
Definition: mpegvideo.h:373
int(* dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:582
int mv_table_index
Definition: mpegvideo.h:491
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:314
int b_code
backward MV resolution for B Frames (mpeg4)
Definition: mpegvideo.h:308
int h263_aic_dir
AIC direction: 0 = left, 1 = top.
Definition: mpegvideo.h:441
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
float * bits_tab
Definition: mpegvideo.h:604
AVTimecode tc
timecode context
Definition: mpegvideo.h:551
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
Definition: mpegvideo.c:1031
int dct_count[2]
Definition: mpegvideo.h:399
int64_t mb_var_sum
sum of MB variance for current frame
Definition: mpegvideo.h:128
This structure stores compressed data.
Definition: avcodec.h:1139
int dc_table_index
Definition: mpegvideo.h:494
unsigned int lambda
lagrange multipler used in rate distortion
Definition: mpegvideo.h:275
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:456
AVBufferRef * ref_index_buf[2]
Definition: mpegvideo.h:105
HpelDSPContext hdsp
Definition: mpegvideo.h:298
int next_lambda
next lambda used for retrying to encode a frame
Definition: mpegvideo.h:406
bitstream writer API
static int16_t block[64]
Definition: dct-test.c:110