FFmpeg
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 "internal.h"
43 #include "me_cmp.h"
44 #include "motion_est.h"
45 #include "mpegpicture.h"
46 #include "mpegvideodsp.h"
47 #include "mpegvideoencdsp.h"
48 #include "mpegvideodata.h"
49 #include "pixblockdsp.h"
50 #include "put_bits.h"
51 #include "ratecontrol.h"
52 #if FF_API_FLAG_TRUNCATED
53 #include "parser.h"
54 #endif
55 #include "mpegutils.h"
56 #include "qpeldsp.h"
57 #include "rl.h"
58 #include "videodsp.h"
59 
60 #include "libavutil/opt.h"
61 
62 #define MAX_THREADS 32
63 
64 #define MAX_B_FRAMES 16
65 
66 /**
67  * MpegEncContext.
68  */
69 typedef struct MpegEncContext {
70  AVClass *class;
71 
73  int ac_pred;
74  int block_last_index[12]; ///< last non zero coefficient in block
75  int h263_aic; ///< Advanced INTRA Coding (AIC)
76 
77  /* scantables */
78  ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce the cache usage
82 
83  /* WARNING: changes above this line require updates to hardcoded
84  * offsets used in ASM. */
85 
87  /* the following parameters must be initialized before encoding */
88  int width, height;///< picture size. must be a multiple of 16
89  int gop_size;
90  int intra_only; ///< if true, only intra pictures are generated
91  int64_t bit_rate; ///< wanted bit rate
92  enum OutputFormat out_format; ///< output format
93  int h263_pred; ///< use MPEG-4/H.263 ac/dc predictions
94  int pb_frame; ///< PB-frame mode (0 = none, 1 = base, 2 = improved)
95 
96 /* the following codec id fields are deprecated in favor of codec_id */
97  int h263_plus; ///< H.263+ headers
98  int h263_flv; ///< use flv H.263 header
99 
100  enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
101  int fixed_qscale; ///< fixed qscale if non zero
102  int encoding; ///< true if we are encoding (vs decoding)
103  int max_b_frames; ///< max number of B-frames for encoding
106  int strict_std_compliance; ///< strictly follow the std (MPEG-4, ...)
107  int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
108  int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
109  /* the following fields are managed internally by the encoder */
110 
111  /* sequence parameters */
113  int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
114  int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
115  int picture_number; //FIXME remove, unclear definition
116  int picture_in_gop_number; ///< 0-> first pic in gop, ...
117  int mb_width, mb_height; ///< number of MBs horizontally & vertically
118  int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
119  int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
120  int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
121  int mb_num; ///< number of MBs of a picture
122  ptrdiff_t linesize; ///< line size, in bytes, may be different from width
123  ptrdiff_t uvlinesize; ///< line size, for chroma in bytes, may be different from width
124  Picture *picture; ///< main picture buffer
125  Picture **input_picture; ///< next pictures on display order for encoding
126  Picture **reordered_input_picture; ///< pointer to the next pictures in coded order for encoding
127 
128  int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_send_frame()
129  /**
130  * pts difference between the first and second input frame, used for
131  * calculating dts of the first frame when there's a delay */
132  int64_t dts_delta;
133  /**
134  * reordered pts to be used as dts for the next output frame when there's
135  * a delay */
136  int64_t reordered_pts;
137 
138  /** bit output */
140 
141  int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
142  int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
144  int slice_context_count; ///< number of used thread_contexts
145 
146  /**
147  * copy of the previous picture structure.
148  * note, linesize & data, might not match the previous picture (for field pictures)
149  */
151 
152  /**
153  * copy of the next picture structure.
154  * note, linesize & data, might not match the next picture (for field pictures)
155  */
157 
158  /**
159  * copy of the source picture structure for encoding.
160  * note, linesize & data, might not match the source picture (for field pictures)
161  */
163 
164  /**
165  * copy of the current picture structure.
166  * note, linesize & data, might not match the current picture (for field pictures)
167  */
168  Picture current_picture; ///< buffer to store the decompressed current picture
169 
170  Picture *last_picture_ptr; ///< pointer to the previous picture.
171  Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
172  Picture *current_picture_ptr; ///< pointer to the current picture
173  int last_dc[3]; ///< last DC values for MPEG-1
174  int16_t *dc_val_base;
175  int16_t *dc_val[3]; ///< used for MPEG-4 DC prediction, all 3 arrays must be continuous
176  const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
177  const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
178  const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (H.263)
180  uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
181  int16_t (*ac_val_base)[16];
182  int16_t (*ac_val[3])[16]; ///< used for MPEG-4 AC prediction, all 3 arrays must be continuous
183  int mb_skipped; ///< MUST BE SET only during DECODING
184  uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
185  and used for B-frame encoding & decoding (contains skip table of next P-frame) */
186  uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
187  uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
188  uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
189 
191 
192  int qscale; ///< QP
193  int chroma_qscale; ///< chroma QP
194  unsigned int lambda; ///< Lagrange multiplier used in rate distortion
195  unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
197  int adaptive_quant; ///< use adaptive quantization
198  int dquant; ///< qscale difference to prev qscale
199  int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
201  int last_pict_type; //FIXME removes
202  int last_non_b_pict_type; ///< used for MPEG-4 gmc B-frames & ratecontrol
205  int last_lambda_for[5]; ///< last lambda for a specific pict type
206  int skipdct; ///< skip dct and code zero residual
207 
208  /* motion compensation */
209  int unrestricted_mv; ///< mv can point outside of the coded picture
210  int h263_long_vectors; ///< use horrible H.263v1 long vector mode
211 
224  int f_code; ///< forward MV resolution
225  int b_code; ///< backward MV resolution for B-frames (MPEG-4)
226  int16_t (*p_mv_table_base)[2];
227  int16_t (*b_forw_mv_table_base)[2];
228  int16_t (*b_back_mv_table_base)[2];
231  int16_t (*b_direct_mv_table_base)[2];
232  int16_t (*p_field_mv_table_base)[2];
233  int16_t (*b_field_mv_table_base)[2];
234  int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) P-frame encoding
235  int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode B-frame encoding
236  int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode B-frame encoding
237  int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
238  int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
239  int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode B-frame encoding
240  int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced P-frame encoding
241  int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame encoding
242  uint8_t (*p_field_select_table[2]); ///< Only the first element is allocated
243  uint8_t (*b_field_select_table[2][2]); ///< Only the first element is allocated
244  int motion_est; ///< ME algorithm
246  int me_pre; ///< prepass for motion estimation
247  int mv_dir;
248 #define MV_DIR_FORWARD 1
249 #define MV_DIR_BACKWARD 2
250 #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (MPEG-4)
251  int mv_type;
252 #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
253 #define MV_TYPE_8X8 1 ///< 4 vectors (H.263, MPEG-4 4MV)
254 #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
255 #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
256 #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
257  /**motion vectors for a macroblock
258  first coordinate : 0 = forward 1 = backward
259  second " : depend on type
260  third " : 0 = x, 1 = y
261  */
262  int mv[2][4][2];
263  int field_select[2][2];
264  int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG-1 & B-frame MPEG-4
265  const uint8_t *fcode_tab; ///< smallest fcode needed for each MV
266  int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
267 
269 
270  int no_rounding; /**< apply no rounding to motion compensation (MPEG-4, msmpeg4, ...)
271  for B-frames rounding mode is always 0 */
272 
273  /* macroblock layer */
274  int mb_x, mb_y;
276  int mb_intra;
277  uint16_t *mb_type; ///< Table for candidate MB types for encoding (defines in mpegutils.h)
278 
279  int block_index[6]; ///< index to current MB in block based arrays with edges
280  int block_wrap[6];
281  uint8_t *dest[3];
282 
283  int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
284 
285  /** matrix transmitted in the bitstream */
286  uint16_t intra_matrix[64];
287  uint16_t chroma_intra_matrix[64];
288  uint16_t inter_matrix[64];
289  uint16_t chroma_inter_matrix[64];
290 
291  int intra_quant_bias; ///< bias for the quantizer
292  int inter_quant_bias; ///< bias for the quantizer
293  int min_qcoeff; ///< minimum encodable coefficient
294  int max_qcoeff; ///< maximum encodable coefficient
295  int ac_esc_length; ///< num of bits needed to encode the longest esc
303 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
304 
305  int coded_score[12];
306 
307  /** precomputed matrix (combine qscale and DCT renorm) */
311  /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
312  uint16_t (*q_intra_matrix16)[2][64];
313  uint16_t (*q_chroma_intra_matrix16)[2][64];
314  uint16_t (*q_inter_matrix16)[2][64];
315 
316  /* noise reduction */
318  int dct_count[2];
319  uint16_t (*dct_offset)[64];
320 
321  /* bit rate control */
322  int64_t total_bits;
323  int frame_bits; ///< bits used for the current frame
324  int stuffing_bits; ///< bits used for stuffing
325  int next_lambda; ///< next lambda used for retrying to encode a frame
326  RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
327 
328  /* statistics, used for 2-pass encoding */
329  int mv_bits;
333  int i_count;
334  int f_count;
335  int b_count;
337  int misc_bits; ///< cbp, mb_type
338  int last_bits; ///< temp var used for calculating the above vars
339 
340  /* error concealment / resync */
341  int resync_mb_x; ///< x position of last resync marker
342  int resync_mb_y; ///< y position of last resync marker
343  GetBitContext last_resync_gb; ///< used to search for the next resync marker
344  int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
345 
346 #if FF_API_FLAG_TRUNCATED
348 #endif
349 
350  /* H.263 specific */
352  int obmc; ///< overlapped block motion compensation
353  int mb_info; ///< interval for outputting info about mb offsets as side data
355  uint8_t *mb_info_ptr;
357  int ehc_mode;
358 
359  /* H.263+ specific */
360  int umvplus; ///< == H.263+ && unrestricted_mv
361  int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
363  int alt_inter_vlc; ///< alternative inter vlc
367 
368  /* MPEG-4 specific */
371  ///< number of bits to represent the fractional part of time (encoder only)
374  int time_base; ///< time in seconds of last I,P,S Frame
375  int64_t time; ///< time of current frame
377  uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
378  uint16_t pb_time; ///< time distance between the last b and p,s,i frame
379  uint16_t pp_field_time;
380  uint16_t pb_field_time; ///< like above, just for interlaced
382  int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
383  int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
384  int mcsel;
386  int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
387  int aspect_ratio_info; //FIXME remove
389  int data_partitioning; ///< data partitioning flag from header
390  int partitioned_frame; ///< is current frame partitioned
391  int low_delay; ///< no reordering needed / has no B-frames
392  int vo_type;
393  PutBitContext tex_pb; ///< used for data partitioned VOPs
394  PutBitContext pb2; ///< used for data partitioned VOPs
396  int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG-4
397 
398  /* divx specific, used to workaround (many) bugs in divx5 */
400  uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
403 
404  /* RV10 specific */
405  int rv10_version; ///< RV10 version: 0 or 3
407 
408  /* MJPEG specific */
410  int esc_pos;
411 
412  /* MSMPEG4 specific */
418  int slice_height; ///< in macroblocks
419  int first_slice_line; ///< used in MPEG-4 too to handle resync markers
421  int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
425  /** [mb_intra][isChroma][level][run][last] */
426  int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
428  int mspel;
429 
430  /* SpeedHQ specific */
432 
433  /* decompression specific */
435 
436  /* MPEG-1 specific */
437  int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & MPEG-1 specific
438  int last_mv_dir; ///< last mv_dir, used for B-frame encoding
439  uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
440 
441  /* MPEG-2-specific - I wished not to have to support this mess. */
443  int mpeg_f_code[2][2];
444 
445  // picture structure defines are loaded from mpegutils.h
447 
448  int64_t timecode_frame_start; ///< GOP timecode frame start number, in non drop frame format
457 #define VIDEO_FORMAT_COMPONENT 0
458 #define VIDEO_FORMAT_PAL 1
459 #define VIDEO_FORMAT_NTSC 2
460 #define VIDEO_FORMAT_SECAM 3
461 #define VIDEO_FORMAT_MAC 4
462 #define VIDEO_FORMAT_UNSPECIFIED 5
466 #define CHROMA_420 1
467 #define CHROMA_422 2
468 #define CHROMA_444 3
469  int chroma_x_shift;//depend on pix_format, that depend on chroma_format
471 
473  int full_pel[2];
475  int first_field; ///< is 1 for the first field of a field picture 0 otherwise
476 
477  /* RTP specific */
478  int rtp_mode;
480 
481  uint8_t *ptr_lastgob;
482  int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
483  int pack_pblocks; //xvmc needs to keep blocks without gaps.
484  int16_t (*pblocks[12])[64];
485 
486  int16_t (*block)[64]; ///< points to one of the following blocks
487  int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
488  int (*decode_mb)(struct MpegEncContext *s, int16_t block[12][64]); // used by some codecs to avoid a switch()
489 
490  int32_t (*block32)[12][64];
491  int dpcm_direction; // 0 = DCT, 1 = DPCM top to bottom scan, -1 = DPCM bottom to top scan
492  int16_t (*dpcm_macroblock)[3][256];
493 
494 #define SLICE_OK 0
495 #define SLICE_ERROR -1
496 #define SLICE_END -2 ///<end marker found
497 #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
498 
500  int16_t *block/*align 16*/, int n, int qscale);
502  int16_t *block/*align 16*/, int n, int qscale);
504  int16_t *block/*align 16*/, int n, int qscale);
506  int16_t *block/*align 16*/, int n, int qscale);
508  int16_t *block/*align 16*/, int n, int qscale);
510  int16_t *block/*align 16*/, int n, int qscale);
511  void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
512  int16_t *block/*align 16*/, int n, int qscale);
513  void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
514  int16_t *block/*align 16*/, int n, int qscale);
515  int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
516  int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
517  void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
518 
519  int mpv_flags; ///< flags set by private options
521 
522  /**
523  * ratecontrol qmin qmax limiting method
524  * 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax.
525  */
526  float rc_qsquish;
527  float rc_qmod_amp;
532  int lmin, lmax;
534 
535  char *rc_eq;
536 
537  /* temp buffers for rate control */
538  float *cplx_tab, *bits_tab;
539 
540  /* flag to indicate a reinitialization is required, e.g. after
541  * a frame size change */
543 
545 
547 
548  /* temporary frames used by b_frame_strategy = 2 */
552 
553  /* frame skip options for encoding */
558 
561 
563 
564 #if FF_API_MPEGVIDEO_OPTS || FF_API_MJPEG_PRED
565  int dummy; ///< used as target for deprecated options
566 #endif
568 
569 /* mpegvideo_enc common options */
570 #define FF_MPV_FLAG_SKIP_RD 0x0001
571 #define FF_MPV_FLAG_STRICT_GOP 0x0002
572 #define FF_MPV_FLAG_QP_RD 0x0004
573 #define FF_MPV_FLAG_CBP_RD 0x0008
574 #define FF_MPV_FLAG_NAQ 0x0010
575 #define FF_MPV_FLAG_MV0 0x0020
576 
577 #define FF_MPV_OPT_CMP_FUNC \
578 { "sad", "Sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
579 { "sse", "Sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
580 { "satd", "Sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
581 { "dct", "Sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
582 { "psnr", "Sum of squared quantization errors, low quality", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
583 { "bit", "Number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
584 { "rd", "Rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
585 { "zero", "Zero", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
586 { "vsad", "Sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
587 { "vsse", "Sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
588 { "nsse", "Noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
589 { "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
590 { "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
591 { "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
592 { "msad", "Sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
593 
594 #ifndef FF_MPV_OFFSET
595 #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
596 #endif
597 #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
598 #define FF_MPV_COMMON_OPTS \
599 FF_MPV_OPT_CMP_FUNC, \
600 { "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" },\
601 { "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" },\
602 { "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" },\
603 { "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" },\
604 { "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" },\
605 { "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
606 { "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" },\
607 { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
608  FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
609 { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
610  FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
611 { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
612 { "error_rate", "Simulate errors in the bitstream to test error concealment.", \
613  FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
614 {"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
615  FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \
616 {"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}, \
617 {"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}, \
618 {"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \
619  "defined in the section 'Expression Evaluation', the following functions are available: " \
620  "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
621  "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
622  FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
623 {"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}, \
624 {"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}, \
625 {"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}, \
626 {"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
627 {"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
628 {"ibias", "intra quant bias", FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
629 {"pbias", "inter quant bias", FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
630 {"motion_est", "motion estimation algorithm", FF_MPV_OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, "motion_est" }, \
631 { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
632 { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
633 { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
634 {"skip_threshold", "Frame skip threshold", FF_MPV_OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
635 {"skip_factor", "Frame skip factor", FF_MPV_OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
636 {"skip_exp", "Frame skip exponent", FF_MPV_OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
637 {"skip_cmp", "Frame skip compare function", FF_MPV_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
638 {"sc_threshold", "Scene change threshold", FF_MPV_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
639 {"noise_reduction", "Noise reduction", FF_MPV_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
640 {"ps", "RTP payload size in bytes", FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
641 {"mepc", "Motion estimation bitrate penalty compensation (1.0 = 256)", FF_MPV_OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
642 {"mepre", "pre motion estimation", FF_MPV_OFFSET(me_pre), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
643 {"intra_penalty", "Penalty for intra blocks in block decision", FF_MPV_OFFSET(intra_penalty), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX/2, FF_MPV_OPT_FLAGS }, \
644 
645 #define FF_MPV_COMMON_BFRAME_OPTS \
646 {"b_strategy", "Strategy to choose between I/P/B-frames", FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS }, \
647 {"b_sensitivity", "Adjust sensitivity of b_frame_strategy 1", FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS }, \
648 {"brd_scale", "Downscale frames for dynamic B-frame decision", FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS },
649 
650 #if FF_API_MPEGVIDEO_OPTS
651 #define FF_MPV_DEPRECATED_MPEG_QUANT_OPT \
652  { "mpeg_quant", "Deprecated, does nothing", FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 0, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
653 #define FF_MPV_DEPRECATED_A53_CC_OPT \
654  { "a53cc", "Deprecated, does nothing", FF_MPV_OFFSET(dummy), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
655 #define FF_MPV_DEPRECATED_MATRIX_OPT \
656  { "force_duplicated_matrix", "Deprecated, does nothing", FF_MPV_OFFSET(dummy), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
657 #define FF_MPV_DEPRECATED_BFRAME_OPTS \
658  { "b_strategy", "Deprecated, does nothing", FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED }, \
659  { "b_sensitivity", "Deprecated, does nothing", FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, { .i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED }, \
660  { "brd_scale", "Deprecated, does nothing", FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS | AV_OPT_FLAG_DEPRECATED },
661 #endif
662 
663 extern const AVClass ff_mpv_enc_class;
664 
665 /**
666  * Set the given MpegEncContext to common defaults (same for encoding
667  * and decoding). The changed fields will not depend upon the prior
668  * state of the MpegEncContext.
669  */
671 
673 
681 /**
682  * Initialize an MpegEncContext's thread contexts. Presumes that
683  * slice_context_count is already set and that all the fields
684  * that are freed/reset in free_duplicate_context() are NULL.
685  */
687 /**
688  * Initialize and allocates MpegEncContext fields dependent on the resolution.
689  */
691 /**
692  * Frees and resets MpegEncContext fields depending on the resolution
693  * as well as the slice thread contexts.
694  * Is used during resolution changes to avoid a full reinitialization of the
695  * codec.
696  */
698 
701 
702 /**
703  * Initialize the given MpegEncContext for decoding.
704  * the changed fields will not depend upon
705  * the prior state of the MpegEncContext.
706  */
708 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64]);
710 
713 
716 
719  const AVFrame *frame, int *got_packet);
720 int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase);
721 
723 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
725 
727 
728 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
729 
730 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
731 
734 void ff_set_qscale(MpegEncContext * s, int qscale);
735 
738 void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
739  const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
740 int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
741 void ff_block_permute(int16_t *block, uint8_t *permutation,
742  const uint8_t *scantable, int last);
744 
746  uint8_t *dest_y, uint8_t *dest_cb,
747  uint8_t *dest_cr, int dir,
748  uint8_t **ref_picture,
749  op_pixels_func (*pix_op)[4],
750  qpel_mc_func (*qpix_op)[16]);
751 
753  const int bytes_per_pixel = 1 + (s->avctx->bits_per_raw_sample > 8);
754  const int block_size= (8*bytes_per_pixel) >> s->avctx->lowres;
755 
756  s->block_index[0]+=2;
757  s->block_index[1]+=2;
758  s->block_index[2]+=2;
759  s->block_index[3]+=2;
760  s->block_index[4]++;
761  s->block_index[5]++;
762  s->dest[0]+= 2*block_size;
763  s->dest[1]+= (2 >> s->chroma_x_shift) * block_size;
764  s->dest[2]+= (2 >> s->chroma_x_shift) * block_size;
765 }
766 
767 static inline int get_bits_diff(MpegEncContext *s){
768  const int bits= put_bits_count(&s->pb);
769  const int last= s->last_bits;
770 
771  s->last_bits = bits;
772 
773  return bits - last;
774 }
775 
776 static inline int mpeg_get_qscale(MpegEncContext *s)
777 {
778  int qscale = get_bits(&s->gb, 5);
779  if (s->q_scale_type)
781  else
782  return qscale << 1;
783 }
784 
785 #endif /* AVCODEC_MPEGVIDEO_H */
MpegEncContext::i_count
int i_count
Definition: mpegvideo.h:333
MpegEncContext::h264chroma
H264ChromaContext h264chroma
Definition: mpegvideo.h:214
ratecontrol.h
MpegEncContext::picture
Picture * picture
main picture buffer
Definition: mpegvideo.h:124
MpegEncContext::mb_skipped
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:183
MpegEncContext::mb_type
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:277
MpegEncContext::h263_flv
int h263_flv
use flv H.263 header
Definition: mpegvideo.h:98
MpegEncContext::q_intra_matrix16
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:312
MpegEncContext::rtp_payload_size
int rtp_payload_size
Definition: mpegvideo.h:479
ff_mpeg_flush
void ff_mpeg_flush(AVCodecContext *avctx)
Definition: mpegvideo_dec.c:549
MpegEncContext::b_field_select_table
uint8_t *[2][2] b_field_select_table
Only the first element is allocated.
Definition: mpegvideo.h:243
MpegEncContext::progressive_sequence
int progressive_sequence
Definition: mpegvideo.h:442
MpegEncContext::swap_uv
int swap_uv
Definition: mpegvideo.h:482
MpegEncContext::luma_elim_threshold
int luma_elim_threshold
Definition: mpegvideo.h:104
MpegEncContext::data_partitioning
int data_partitioning
data partitioning flag from header
Definition: mpegvideo.h:389
MpegEncContext::stuffing_bits
int stuffing_bits
bits used for stuffing
Definition: mpegvideo.h:324
ff_mpeg_update_thread_context
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo_dec.c:50
MpegEncContext::dct_unquantize_mpeg1_intra
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:499
MpegEncContext::lambda
unsigned int lambda
Lagrange multiplier used in rate distortion.
Definition: mpegvideo.h:194
blockdsp.h
opt.h
MpegEncContext::quantizer_noise_shaping
int quantizer_noise_shaping
Definition: mpegvideo.h:520
MpegEncContext::b_code
int b_code
backward MV resolution for B-frames (MPEG-4)
Definition: mpegvideo.h:225
ff_mpv_export_qp_table
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
Definition: mpegvideo_dec.c:511
MpegEncContext::rc_initial_cplx
float rc_initial_cplx
Definition: mpegvideo.h:529
MpegEncContext::frame_rate_index
int frame_rate_index
Definition: mpegvideo.h:204
MpegEncContext::gb
GetBitContext gb
Definition: mpegvideo.h:434
MpegEncContext::inter_intra_pred
int inter_intra_pred
Definition: mpegvideo.h:427
MpegEncContext::top_field_first
int top_field_first
Definition: mpegvideo.h:451
MpegEncContext::input_picture_number
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:113
MpegEncContext::dct_unquantize_h263_inter
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:509
MpegEncContext::total_bits
int64_t total_bits
Definition: mpegvideo.h:322
MpegEncContext::pp_time
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:377
MpegEncContext::rc_context
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
Definition: mpegvideo.h:326
MpegEncContext::intra_quant_bias
int intra_quant_bias
bias for the quantizer
Definition: mpegvideo.h:291
MpegEncContext::max_b_frames
int max_b_frames
max number of B-frames for encoding
Definition: mpegvideo.h:103
MpegEncContext::block_index
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:279
mpeg_get_qscale
static int mpeg_get_qscale(MpegEncContext *s)
Definition: mpegvideo.h:776
MpegEncContext::frame_skip_exp
int frame_skip_exp
Definition: mpegvideo.h:556
MotionEstContext
Motion estimation context.
Definition: motion_est.h:47
MpegEncContext::coded_picture_number
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:114
ff_block_permute
void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
Permute an 8x8 block according to permutation.
Definition: mpegvideo_enc.c:4453
MAX_RUN
#define MAX_RUN
Definition: rl.h:35
MpegEncContext::slice_height
int slice_height
in macroblocks
Definition: mpegvideo.h:418
MpegEncContext::current_picture
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:168
MpegEncContext::bits_tab
float * bits_tab
Definition: mpegvideo.h:538
MpegEncContext::partitioned_frame
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:390
MpegEncContext::y_dc_scale
int y_dc_scale
Definition: mpegvideo.h:72
MpegEncContext::dct_offset
uint16_t(* dct_offset)[64]
Definition: mpegvideo.h:319
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:317
MpegEncContext::mb_num
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:121
MpegEncContext::ac_val_base
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:181
MpegEncContext::dct_unquantize_mpeg2_intra
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:503
MpegEncContext::workaround_bugs
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:107
MpegEncContext::reordered_pts
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there's a delay
Definition: mpegvideo.h:136
MpegEncContext::h263dsp
H263DSPContext h263dsp
Definition: mpegvideo.h:223
internal.h
MpegEncContext::f_count
int f_count
Definition: mpegvideo.h:334
MpegEncContext::inter_quant_bias
int inter_quant_bias
bias for the quantizer
Definition: mpegvideo.h:292
MpegEncContext::mb_width
int mb_width
Definition: mpegvideo.h:117
h263dsp.h
MpegEncContext::fcode_tab
const uint8_t * fcode_tab
smallest fcode needed for each MV
Definition: mpegvideo.h:265
MpegEncContext::next_picture
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:156
MpegEncContext::last_dc
int last_dc[3]
last DC values for MPEG-1
Definition: mpegvideo.h:173
MpegEncContext::intra_chroma_ac_vlc_length
uint8_t * intra_chroma_ac_vlc_length
Definition: mpegvideo.h:298
MpegEncContext::chroma_qscale
int chroma_qscale
chroma QP
Definition: mpegvideo.h:193
MpegEncContext::repeat_first_field
int repeat_first_field
Definition: mpegvideo.h:463
MpegEncContext::mv_table_index
int mv_table_index
Definition: mpegvideo.h:413
MpegEncContext::vbv_delay
int vbv_delay
Definition: mpegvideo.h:200
MpegEncContext::input_picture
Picture ** input_picture
next pictures on display order for encoding
Definition: mpegvideo.h:125
ff_mpeg2_non_linear_qscale
const uint8_t ff_mpeg2_non_linear_qscale[32]
Definition: mpegvideodata.c:26
MpegEncContext::ac_val
int16_t(*[3] ac_val)[16]
used for MPEG-4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:182
MpegEncContext::gob_index
int gob_index
Definition: mpegvideo.h:351
MpegEncContext::fdsp
FDCTDSPContext fdsp
Definition: mpegvideo.h:213
ERContext
Definition: error_resilience.h:53
MpegEncContext::unrestricted_mv
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:209
float.h
MpegEncContext::dest
uint8_t * dest[3]
Definition: mpegvideo.h:281
MpegEncContext::avctx
struct AVCodecContext * avctx
Definition: mpegvideo.h:86
MpegEncContext::last_non_b_time
int64_t last_non_b_time
Definition: mpegvideo.h:376
MpegEncContext::ac_stats
int(* ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]
[mb_intra][isChroma][level][run][last]
Definition: mpegvideo.h:426
Picture
Picture.
Definition: mpegpicture.h:46
MpegEncContext::next_picture_ptr
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:171
MpegEncContext::pb
PutBitContext pb
bit output
Definition: mpegvideo.h:139
MpegEncContext::mcsel
int mcsel
Definition: mpegvideo.h:384
MpegEncContext::vo_type
int vo_type
Definition: mpegvideo.h:392
MpegEncContext::mb_num_left
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:344
BlockDSPContext
Definition: blockdsp.h:34
MpegEncContext::height
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:88
mpegutils.h
MpegEncContext::fast_dct_quantize
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:516
MpegEncContext::dts_delta
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
Definition: mpegvideo.h:132
MpegEncContext::dct_unquantize_h263_intra
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:507
MpegEncContext::frame_skip_cmp
int frame_skip_cmp
Definition: mpegvideo.h:557
MpegEncContext::last_resync_gb
GetBitContext last_resync_gb
used to search for the next resync marker
Definition: mpegvideo.h:343
MpegEncContext::mv
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
Definition: mpegvideo.h:262
ScratchpadContext
Definition: mpegpicture.h:36
MpegEncContext::use_skip_mb_code
int use_skip_mb_code
Definition: mpegvideo.h:417
MpegVideoDSPContext
Definition: mpegvideodsp.h:28
MpegEncContext::out_format
enum OutputFormat out_format
output format
Definition: mpegvideo.h:92
MpegEncContext::esc_pos
int esc_pos
Definition: mpegvideo.h:410
MpegEncContext::border_masking
float border_masking
Definition: mpegvideo.h:531
MpegEncContext::time_base
int time_base
time in seconds of last I,P,S Frame
Definition: mpegvideo.h:374
MpegEncContext::mpeg_f_code
int mpeg_f_code[2][2]
Definition: mpegvideo.h:443
MpegEncContext::intra_scantable
ScanTable intra_scantable
Definition: mpegvideo.h:79
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:380
FDCTDSPContext
Definition: fdctdsp.h:26
ParseContext
Definition: parser.h:28
MpegEncContext::mb_height
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:117
MpegEncContext::pict_type
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:199
MpegEncContext::h263_pred
int h263_pred
use MPEG-4/H.263 ac/dc predictions
Definition: mpegvideo.h:93
MpegEncContext::mbintra_table
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:186
MpegEncContext::mpv_flags
int mpv_flags
flags set by private options
Definition: mpegvideo.h:519
MpegEncContext::chroma_y_shift
int chroma_y_shift
Definition: mpegvideo.h:470
MpegEncContext::intra_penalty
int intra_penalty
Definition: mpegvideo.h:562
MpegEncContext::picture_structure
int picture_structure
Definition: mpegvideo.h:446
MpegEncContext::intra_only
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:90
MpegEncContext::vdsp
VideoDSPContext vdsp
Definition: mpegvideo.h:222
MpegEncContext::padding_bug_score
int padding_bug_score
used to detect the VERY common padding bug in MPEG-4
Definition: mpegvideo.h:396
GetBitContext
Definition: get_bits.h:62
ff_convert_matrix
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:108
MpegEncContext::linesize
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:122
MpegEncContext::bdsp
BlockDSPContext bdsp
Definition: mpegvideo.h:212
MpegEncContext::umvplus
int umvplus
== H.263+ && unrestricted_mv
Definition: mpegvideo.h:360
MpegEncContext::ptr_lastgob
uint8_t * ptr_lastgob
Definition: mpegvideo.h:481
MpegEncContext::width
int width
Definition: mpegvideo.h:88
ff_mpv_common_init_x86
void ff_mpv_common_init_x86(MpegEncContext *s)
Definition: mpegvideo.c:454
motion_est.h
MpegEncContext::b_bidir_forw_mv_table_base
int16_t(* b_bidir_forw_mv_table_base)[2]
Definition: mpegvideo.h:229
ff_mpv_idct_init
void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:326
MpegEncContext::gop_size
int gop_size
Definition: mpegvideo.h:89
MpegEncContext::frame_pred_frame_dct
int frame_pred_frame_dct
Definition: mpegvideo.h:450
MpegEncContext::q_intra_matrix
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
Definition: mpegvideo.h:308
MpegEncContext::i_tex_bits
int i_tex_bits
Definition: mpegvideo.h:331
MpegEncContext::pblocks
int16_t(*[12] pblocks)[64]
Definition: mpegvideo.h:484
RateControlContext
rate control context.
Definition: ratecontrol.h:63
pkt
AVPacket * pkt
Definition: movenc.c:59
H263DSPContext
Definition: h263dsp.h:26
MpegEncContext::pb_frame
int pb_frame
PB-frame mode (0 = none, 1 = base, 2 = improved)
Definition: mpegvideo.h:94
MpegEncContext::slice_start
int slice_start
Definition: mpegvideo.h:431
ff_set_qscale
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:1785
MpegEncContext::coded_block
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:180
MpegEncContext::pp_field_time
uint16_t pp_field_time
Definition: mpegvideo.h:379
s
#define s(width, name)
Definition: cbs_vp9.c:257
MpegEncContext::mpvencdsp
MpegvideoEncDSPContext mpvencdsp
Definition: mpegvideo.h:219
MpegEncContext::last_time_base
int last_time_base
Definition: mpegvideo.h:373
ff_mpv_encode_init
int ff_mpv_encode_init(AVCodecContext *avctx)
Definition: mpegvideo_enc.c:312
MpegEncContext::me_penalty_compensation
int me_penalty_compensation
Definition: mpegvideo.h:245
MpegEncContext::mv_dir
int mv_dir
Definition: mpegvideo.h:247
MpegEncContext::h_edge_pos
int h_edge_pos
Definition: mpegvideo.h:120
MpegEncContext::b_back_mv_table
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode B-frame encoding.
Definition: mpegvideo.h:236
MpegEncContext::mb_skip_run
int mb_skip_run
Definition: mpegvideo.h:275
ff_mpv_common_defaults
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding).
Definition: mpegvideo.c:512
MpegEncContext::b_sensitivity
int b_sensitivity
Definition: mpegvideo.h:551
MpegEncContext::bit_rate
int64_t bit_rate
wanted bit rate
Definition: mpegvideo.h:91
bits
uint8_t bits
Definition: vp3data.h:141
OutputFormat
OutputFormat
Definition: mpegutils.h:122
MpegEncContext::p_field_mv_table_base
int16_t(* p_field_mv_table_base)[2]
Definition: mpegvideo.h:232
ff_mpv_encode_picture
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: mpegvideo_enc.c:1681
MpegEncContext::max_qcoeff
int max_qcoeff
maximum encodable coefficient
Definition: mpegvideo.h:294
MpegEncContext::loop_filter
int loop_filter
Definition: mpegvideo.h:365
MpegEncContext::user_specified_pts
int64_t user_specified_pts
last non-zero pts from AVFrame which was passed into avcodec_send_frame()
Definition: mpegvideo.h:128
MpegEncContext::sprite_delta
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:383
get_bits.h
MpegEncContext::frame_bits
int frame_bits
bits used for the current frame
Definition: mpegvideo.h:323
MpegEncContext::denoise_dct
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
Definition: mpegvideo.h:517
MpegEncContext::inter_ac_vlc_length
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:300
MpegEncContext::b_count
int b_count
Definition: mpegvideo.h:335
MpegEncContext::divx_packed
int divx_packed
Definition: mpegvideo.h:399
MpegEncContext::aspect_ratio_info
int aspect_ratio_info
Definition: mpegvideo.h:387
MpegEncContext::brd_scale
int brd_scale
Definition: mpegvideo.h:454
MpegEncContext::dct_quantize
int(* dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:515
f
#define f(width, name)
Definition: cbs_vp9.c:255
PutBitContext
Definition: put_bits.h:49
MpegEncContext::mb_stride
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
Definition: mpegvideo.h:118
MpegEncContext::bitstream_buffer_size
int bitstream_buffer_size
Definition: mpegvideo.h:401
MpegEncContext::low_delay
int low_delay
no reordering needed / has no B-frames
Definition: mpegvideo.h:391
MpegEncContext::b_direct_mv_table
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode B-frame encoding.
Definition: mpegvideo.h:239
PixblockDSPContext
Definition: pixblockdsp.h:28
ff_mpv_frame_end
void ff_mpv_frame_end(MpegEncContext *s)
Definition: mpegvideo_dec.c:496
MpegEncContext::inter_ac_vlc_last_length
uint8_t * inter_ac_vlc_last_length
Definition: mpegvideo.h:301
ff_mpv_reconstruct_mb
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.c:1719
MECmpContext
Definition: me_cmp.h:53
MpegEncContext::prev_mb_info
int prev_mb_info
Definition: mpegvideo.h:354
MpegEncContext::pb2
PutBitContext pb2
used for data partitioned VOPs
Definition: mpegvideo.h:394
MpegEncContext::field_select
int field_select[2][2]
Definition: mpegvideo.h:263
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
MpegEncContext::chroma_420_type
int chroma_420_type
Definition: mpegvideo.h:464
ff_mpv_common_end
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:887
MpegEncContext::mb_y
int mb_y
Definition: mpegvideo.h:274
MpegEncContext::h263_long_vectors
int h263_long_vectors
use horrible H.263v1 long vector mode
Definition: mpegvideo.h:210
MpegEncContext::dct_error_sum
int(* dct_error_sum)[64]
Definition: mpegvideo.h:317
MpegEncContext::f_code
int f_code
forward MV resolution
Definition: mpegvideo.h:224
MpegEncContext::header_bits
int header_bits
Definition: mpegvideo.h:330
MpegEncContext::h263_aic
int h263_aic
Advanced INTRA Coding (AIC)
Definition: mpegvideo.h:75
MpegEncContext::parse_context
ParseContext parse_context
Definition: mpegvideo.h:347
MpegEncContext::esc3_run_length
int esc3_run_length
Definition: mpegvideo.h:424
MpegEncContext::intra_chroma_ac_vlc_last_length
uint8_t * intra_chroma_ac_vlc_last_length
Definition: mpegvideo.h:299
MpegEncContext::p_mv_table
int16_t(* p_mv_table)[2]
MV table (1MV per MB) P-frame encoding.
Definition: mpegvideo.h:234
ff_dct_quantize_c
int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo_enc.c:4478
MpegEncContext::y_dc_scale_table
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:176
MpegEncContext::inter_matrix
uint16_t inter_matrix[64]
Definition: mpegvideo.h:288
MpegEncContext::mecc
MECmpContext mecc
Definition: mpegvideo.h:217
MpegEncContext::hdsp
HpelDSPContext hdsp
Definition: mpegvideo.h:215
MpegEncContext::decode_mb
int(* decode_mb)(struct MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.h:488
MpegEncContext::concealment_motion_vectors
int concealment_motion_vectors
Definition: mpegvideo.h:452
MpegEncContext::mb_info_ptr
uint8_t * mb_info_ptr
Definition: mpegvideo.h:355
MpegEncContext::mv_bits
int mv_bits
Definition: mpegvideo.h:329
MpegEncContext::rc_buffer_aggressivity
float rc_buffer_aggressivity
Definition: mpegvideo.h:530
ff_update_duplicate_context
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
Definition: mpegvideo.c:481
MpegEncContext::b8_stride
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:119
qpeldsp.h
MpegEncContext::dct_unquantize_mpeg1_inter
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:501
MpegEncContext::last_picture_ptr
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:170
MpegEncContext::pdsp
PixblockDSPContext pdsp
Definition: mpegvideo.h:220
MpegEncContext::me
MotionEstContext me
Definition: mpegvideo.h:268
MpegEncContext::slice_context_count
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:144
MpegEncContext::scenechange_threshold
int scenechange_threshold
Definition: mpegvideo.h:559
op_pixels_func
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
MpegEncContext::b_field_mv_table_base
int16_t(* b_field_mv_table_base)[2]
Definition: mpegvideo.h:233
MpegEncContext::pb_time
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:378
MpegEncContext::q_inter_matrix16
uint16_t(* q_inter_matrix16)[2][64]
Definition: mpegvideo.h:314
MpegEncContext::quant_precision
int quant_precision
Definition: mpegvideo.h:385
qpel_mc_func
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
MpegEncContext::blocks
int16_t(* blocks)[12][64]
Definition: mpegvideo.h:487
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:47
MpegEncContext::idsp
IDCTDSPContext idsp
Definition: mpegvideo.h:216
MpegEncContext::c_dc_scale
int c_dc_scale
Definition: mpegvideo.h:72
MpegEncContext::b_bidir_forw_mv_table
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:237
MpegEncContext::strict_std_compliance
int strict_std_compliance
strictly follow the std (MPEG-4, ...)
Definition: mpegvideo.h:106
HpelDSPContext
Half-pel DSP context.
Definition: hpeldsp.h:45
MpegEncContext::pb_field_time
uint16_t pb_field_time
like above, just for interlaced
Definition: mpegvideo.h:380
MpegEncContext::coded_block_base
uint8_t * coded_block_base
Definition: mpegvideo.h:179
MAX_LEVEL
#define MAX_LEVEL
Definition: rl.h:36
ff_mpv_init_duplicate_contexts
int ff_mpv_init_duplicate_contexts(MpegEncContext *s)
Initialize an MpegEncContext's thread contexts.
Definition: mpegvideo.c:396
MpegEncContext::me_pre
int me_pre
prepass for motion estimation
Definition: mpegvideo.h:246
MpegEncContext::timecode_frame_start
int64_t timecode_frame_start
GOP timecode frame start number, in non drop frame format.
Definition: mpegvideo.h:448
MpegEncContext::q_chroma_intra_matrix16
uint16_t(* q_chroma_intra_matrix16)[2][64]
Definition: mpegvideo.h:313
mpegvideodsp.h
MpegEncContext::mb_intra
int mb_intra
Definition: mpegvideo.h:276
MpegEncContext::mdsp
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:218
MpegEncContext::min_qcoeff
int min_qcoeff
minimum encodable coefficient
Definition: mpegvideo.h:293
MpegEncContext::chroma_qscale_table
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (H.263)
Definition: mpegvideo.h:178
MpegEncContext::last_mb_info
int last_mb_info
Definition: mpegvideo.h:354
ff_mpv_common_init_axp
void ff_mpv_common_init_axp(MpegEncContext *s)
Definition: mpegvideo_alpha.c:106
MpegEncContext::qscale
int qscale
QP.
Definition: mpegvideo.h:192
MpegEncContext::first_slice_line
int first_slice_line
used in MPEG-4 too to handle resync markers
Definition: mpegvideo.h:419
MpegEncContext::frame_skip_factor
int frame_skip_factor
Definition: mpegvideo.h:555
MpegEncContext::intra_matrix
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:286
MpegEncContext::lambda2
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:195
MpegEncContext::adaptive_quant
int adaptive_quant
use adaptive quantization
Definition: mpegvideo.h:197
MpegEncContext::v_edge_pos
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:120
MpegEncContext::dct_count
int dct_count[2]
Definition: mpegvideo.h:318
ff_mpv_motion
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])
Definition: mpegvideo_motion.c:972
MpegEncContext::tmp_frames
AVFrame * tmp_frames[MAX_B_FRAMES+2]
Definition: mpegvideo.h:549
MpegEncContext::b_frame_strategy
int b_frame_strategy
Definition: mpegvideo.h:550
MpegEncContext::qdsp
QpelDSPContext qdsp
Definition: mpegvideo.h:221
MpegEncContext::b_forw_mv_table
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode B-frame encoding.
Definition: mpegvideo.h:235
MpegEncContext::sprite_warping_accuracy
int sprite_warping_accuracy
Definition: mpegvideo.h:388
h264chroma.h
MpegEncContext::intra_h_scantable
ScanTable intra_h_scantable
Definition: mpegvideo.h:80
MpegEncContext::interlaced_dct
int interlaced_dct
Definition: mpegvideo.h:474
MpegEncContext::error_rate
int error_rate
Definition: mpegvideo.h:546
MpegEncContext::encoding
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:102
MpegEncContext::mbskip_table
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:184
MAX_THREADS
#define MAX_THREADS
Definition: mpegvideo.h:62
MpegEncContext::dc_val
int16_t * dc_val[3]
used for MPEG-4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:175
MpegEncContext::quarter_sample
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:386
MpegEncContext::context_initialized
int context_initialized
Definition: mpegvideo.h:112
MpegEncContext::p_mv_table_base
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:226
MpegEncContext::dct_precision
int dct_precision
number of bits to represent the fractional part of time (encoder only)
Definition: mpegvideo.h:370
MpegEncContext::q_chroma_intra_matrix
int(* q_chroma_intra_matrix)[64]
Definition: mpegvideo.h:309
MpegEncContext::b_direct_mv_table_base
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:231
mpegpicture.h
mpegvideodata.h
MpegEncContext::rl_chroma_table_index
int rl_chroma_table_index
Definition: mpegvideo.h:415
MpegEncContext::picture_in_gop_number
int picture_in_gop_number
0-> first pic in gop, ...
Definition: mpegvideo.h:116
ff_mpv_init_context_frame
int ff_mpv_init_context_frame(MpegEncContext *s)
Initialize and allocates MpegEncContext fields dependent on the resolution.
Definition: mpegvideo.c:530
MpegEncContext::context_reinit
int context_reinit
Definition: mpegvideo.h:542
MpegEncContext::p_field_select_table
uint8_t *[2] p_field_select_table
Only the first element is allocated.
Definition: mpegvideo.h:242
MpegEncContext::intra_ac_vlc_last_length
uint8_t * intra_ac_vlc_last_length
Definition: mpegvideo.h:297
ff_mpv_common_init
int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:746
ff_init_block_index
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:1749
MpegEncContext::full_pel
int full_pel[2]
Definition: mpegvideo.h:473
ff_update_block_index
static void ff_update_block_index(MpegEncContext *s)
Definition: mpegvideo.h:752
ff_mpeg_draw_horiz_band
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo_dec.c:541
MpegEncContext::block_last_index
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:74
MpegEncContext::real_sprite_warping_points
int real_sprite_warping_points
Definition: mpegvideo.h:381
MpegEncContext::chroma_elim_threshold
int chroma_elim_threshold
Definition: mpegvideo.h:105
MpegEncContext::dc_val_base
int16_t * dc_val_base
Definition: mpegvideo.h:174
MpegEncContext::current_picture_ptr
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:172
MpegvideoEncDSPContext
Definition: mpegvideoencdsp.h:32
MpegEncContext::last_mv
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG-1 & B-frame MPEG-4
Definition: mpegvideo.h:264
MpegEncContext::uvlinesize
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:123
ff_dct_encode_init_x86
void ff_dct_encode_init_x86(MpegEncContext *s)
Definition: mpegvideoenc.c:214
MpegEncContext::progressive_frame
int progressive_frame
Definition: mpegvideo.h:472
MpegEncContext::allocated_bitstream_buffer_size
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:402
MpegEncContext::chroma_inter_matrix
uint16_t chroma_inter_matrix[64]
Definition: mpegvideo.h:289
ff_print_debug_info
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
Definition: mpegvideo_dec.c:504
put_bits_count
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:79
MpegEncContext::mjpeg_ctx
struct MJpegContext * mjpeg_ctx
Definition: mpegvideo.h:409
ff_mpv_reallocate_putbitbuffer
int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase)
Definition: mpegvideo_enc.c:2724
MpegEncContext::esc3_level_length
int esc3_level_length
Definition: mpegvideo.h:423
MpegEncContext::obmc
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:352
ff_mpv_common_init_neon
void ff_mpv_common_init_neon(MpegEncContext *s)
Definition: mpegvideo.c:127
MpegEncContext::tex_pb
PutBitContext tex_pb
used for data partitioned VOPs
Definition: mpegvideo.h:393
MpegEncContext::mb_x
int mb_x
Definition: mpegvideo.h:274
qmat16
static const int32_t qmat16[MAT_SIZE]
Definition: hq_hqadata.c:342
ff_mpv_common_init_ppc
void ff_mpv_common_init_ppc(MpegEncContext *s)
Definition: mpegvideo_altivec.c:119
ff_mpv_encode_end
int ff_mpv_encode_end(AVCodecContext *avctx)
Definition: mpegvideo_enc.c:937
MpegEncContext::thread_context
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:143
MpegEncContext::b_bidir_back_mv_table
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:238
MpegEncContext::sc
ScratchpadContext sc
Definition: mpegvideo.h:190
MpegEncContext::pack_pblocks
int pack_pblocks
Definition: mpegvideo.h:483
fdctdsp.h
MpegEncContext::dc_table_index
int dc_table_index
Definition: mpegvideo.h:416
MpegEncContext::rc_qmod_amp
float rc_qmod_amp
Definition: mpegvideo.h:527
MpegEncContext::intra_vlc_format
int intra_vlc_format
Definition: mpegvideo.h:455
parser.h
ff_mpv_frame_start
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function called after decoding the header and before a frame is decoded.
Definition: mpegvideo_dec.c:272
MpegEncContext::skipdct
int skipdct
skip dct and code zero residual
Definition: mpegvideo.h:206
MpegEncContext::er
ERContext er
Definition: mpegvideo.h:544
MpegEncContext::last_lambda_for
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:205
MpegEncContext::vbv_delay_ptr
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
Definition: mpegvideo.h:439
MpegEncContext::b_forw_mv_table_base
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:227
MpegEncContext::picture_number
int picture_number
Definition: mpegvideo.h:115
MpegEncContext::dct_unquantize_inter
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:513
ff_mpv_encode_init_x86
void ff_mpv_encode_init_x86(MpegEncContext *s)
idctdsp.h
MpegEncContext::motion_est
int motion_est
ME algorithm.
Definition: mpegvideo.h:244
MpegEncContext::h263_slice_structured
int h263_slice_structured
Definition: mpegvideo.h:362
avcodec.h
ff_clean_intra_table_entries
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:1392
MpegEncContext::fixed_qscale
int fixed_qscale
fixed qscale if non zero
Definition: mpegvideo.h:101
get_bits_diff
static int get_bits_diff(MpegEncContext *s)
Definition: mpegvideo.h:767
MpegEncContext::last_non_b_pict_type
int last_non_b_pict_type
used for MPEG-4 gmc B-frames & ratecontrol
Definition: mpegvideo.h:202
MpegEncContext::block32
int32_t(* block32)[12][64]
Definition: mpegvideo.h:490
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
MpegEncContext::sprite_offset
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:382
MpegEncContext::mspel
int mspel
Definition: mpegvideo.h:428
IDCTDSPContext
Definition: idctdsp.h:53
MpegEncContext::rv10_version
int rv10_version
RV10 version: 0 or 3.
Definition: mpegvideo.h:405
me_cmp.h
ff_mpv_common_init_mips
void ff_mpv_common_init_mips(MpegEncContext *s)
Definition: mpegvideo_init_mips.c:26
MpegEncContext::p_field_mv_table
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced P-frame encoding.
Definition: mpegvideo.h:240
MpegEncContext::block
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:486
MpegEncContext::dquant
int dquant
qscale difference to prev qscale
Definition: mpegvideo.h:198
MpegEncContext::chroma_x_shift
int chroma_x_shift
Definition: mpegvideo.h:469
ff_dct_encode_init
int ff_dct_encode_init(MpegEncContext *s)
Definition: mpegvideo_enc.c:293
QpelDSPContext
quarterpel DSP context
Definition: qpeldsp.h:72
AVCodecContext
main external API structure.
Definition: avcodec.h:383
MpegEncContext::intra_dc_precision
int intra_dc_precision
Definition: mpegvideo.h:449
ff_mpv_decode_init
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
Initialize the given MpegEncContext for decoding.
Definition: mpegvideo_dec.c:36
MpegEncContext::per_mb_rl_table
int per_mb_rl_table
Definition: mpegvideo.h:422
MpegEncContext::skip_count
int skip_count
Definition: mpegvideo.h:336
MpegEncContext::flipflop_rounding
int flipflop_rounding
Definition: mpegvideo.h:420
MpegEncContext::ac_esc_length
int ac_esc_length
num of bits needed to encode the longest esc
Definition: mpegvideo.h:295
MpegEncContext::ehc_mode
int ehc_mode
Definition: mpegvideo.h:357
MpegEncContext::last_bits
int last_bits
temp var used for calculating the above vars
Definition: mpegvideo.h:338
MpegEncContext::dpcm_macroblock
int16_t(* dpcm_macroblock)[3][256]
Definition: mpegvideo.h:492
MpegEncContext::modified_quant
int modified_quant
Definition: mpegvideo.h:364
MpegEncContext::lmin
int lmin
Definition: mpegvideo.h:532
error_resilience.h
MpegEncContext::gop_picture_number
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & MPEG-1 specific
Definition: mpegvideo.h:437
MpegEncContext::rv10_first_dc_coded
int rv10_first_dc_coded[3]
Definition: mpegvideo.h:406
MpegEncContext::rc_eq
char * rc_eq
Definition: mpegvideo.h:535
mpegvideoencdsp.h
MpegEncContext::vbv_ignore_qmax
int vbv_ignore_qmax
Definition: mpegvideo.h:533
MpegEncContext::lmax
int lmax
Definition: mpegvideo.h:532
MpegEncContext::time
int64_t time
time of current frame
Definition: mpegvideo.h:375
MJpegContext
Holds JPEG frame data and Huffman table data.
Definition: mjpegenc.h:59
MpegEncContext::last_picture
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:150
MpegEncContext::pred_dir_table
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:188
MpegEncContext::dct_unquantize_intra
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:511
MpegEncContext::resync_mb_x
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:341
VideoDSPContext
Definition: videodsp.h:41
MpegEncContext::no_rounding
int no_rounding
apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) for B-frames rounding mode is always ...
Definition: mpegvideo.h:270
MpegEncContext::h263_aic_dir
int h263_aic_dir
AIC direction: 0 = left, 1 = top.
Definition: mpegvideo.h:361
MpegEncContext::dpcm_direction
int dpcm_direction
Definition: mpegvideo.h:491
MpegEncContext::dct_unquantize_mpeg2_inter
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:505
MpegEncContext::mpeg_quant
int mpeg_quant
Definition: mpegvideo.h:395
MpegEncContext::mb_info_size
int mb_info_size
Definition: mpegvideo.h:356
MpegEncContext::noise_reduction
int noise_reduction
Definition: mpegvideo.h:560
overflow
Undefined Behavior In the C some operations are like signed integer overflow
Definition: undefined.txt:3
MpegEncContext::inter_scantable
ScanTable inter_scantable
if inter == intra then intra should be used to reduce the cache usage
Definition: mpegvideo.h:78
MpegEncContext::luma_dc_vlc_length
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:302
MpegEncContext::droppable
int droppable
Definition: mpegvideo.h:203
MpegEncContext::frame_skip_threshold
int frame_skip_threshold
Definition: mpegvideo.h:554
ScanTable
Scantable.
Definition: idctdsp.h:31
MpegEncContext::cbp_table
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:187
ff_mpv_common_init_arm
void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:44
MpegEncContext::first_field
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:475
MpegEncContext::q_scale_type
int q_scale_type
Definition: mpegvideo.h:453
H264ChromaContext
Definition: h264chroma.h:27
MpegEncContext::new_picture
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:162
AVPacket
This structure stores compressed data.
Definition: packet.h:350
ff_mpv_common_frame_size_change
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo_dec.c:190
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
MpegEncContext::last_mv_dir
int last_mv_dir
last mv_dir, used for B-frame encoding
Definition: mpegvideo.h:438
MpegEncContext::q_inter_matrix
int(* q_inter_matrix)[64]
Definition: mpegvideo.h:310
MAX_B_FRAMES
#define MAX_B_FRAMES
Definition: mpegvideo.h:64
videodsp.h
MpegEncContext::mb_info
int mb_info
interval for outputting info about mb offsets as side data
Definition: mpegvideo.h:353
rl.h
MpegEncContext::next_lambda
int next_lambda
next lambda used for retrying to encode a frame
Definition: mpegvideo.h:325
MpegEncContext::reordered_input_picture
Picture ** reordered_input_picture
pointer to the next pictures in coded order for encoding
Definition: mpegvideo.h:126
int32_t
int32_t
Definition: audioconvert.c:56
MpegEncContext::coded_score
int coded_score[12]
Definition: mpegvideo.h:305
MpegEncContext::last_pict_type
int last_pict_type
Definition: mpegvideo.h:201
hpeldsp.h
MpegEncContext::msmpeg4_version
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:421
ff_write_quant_matrix
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix)
Definition: mpegvideo_enc.c:220
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
ff_mpv_free_context_frame
void ff_mpv_free_context_frame(MpegEncContext *s)
Frees and resets MpegEncContext fields depending on the resolution as well as the slice thread contex...
Definition: mpegvideo.c:833
ff_mpv_enc_class
const AVClass ff_mpv_enc_class
Definition: mpegvideo_enc.c:101
MpegEncContext::misc_bits
int misc_bits
cbp, mb_type
Definition: mpegvideo.h:337
MpegEncContext::resync_mb_y
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:342
h
h
Definition: vp9dsp_template.c:2038
MpegEncContext::end_mb_y
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:142
MpegEncContext::mb_index2xy
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
Definition: mpegvideo.h:283
MpegEncContext::rc_qsquish
float rc_qsquish
ratecontrol qmin qmax limiting method 0-> clipping, 1-> use a nice continuous function to limit qscal...
Definition: mpegvideo.h:526
MpegEncContext::h263_plus
int h263_plus
H.263+ headers.
Definition: mpegvideo.h:97
MpegEncContext::start_mb_y
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:141
MpegEncContext::block_wrap
int block_wrap[6]
Definition: mpegvideo.h:280
MpegEncContext::b_back_mv_table_base
int16_t(* b_back_mv_table_base)[2]
Definition: mpegvideo.h:228
MpegEncContext::alternate_scan
int alternate_scan
Definition: mpegvideo.h:456
MpegEncContext::cplx_tab
float * cplx_tab
Definition: mpegvideo.h:538
int
int
Definition: ffmpeg_filter.c:153
put_bits.h
MpegEncContext::custom_pcf
int custom_pcf
Definition: mpegvideo.h:366
MpegEncContext::direct_scale_mv
int16_t direct_scale_mv[2][64]
precomputed to avoid divisions in ff_mpeg4_set_direct_mv
Definition: mpegvideo.h:266
MpegEncContext::c_dc_scale_table
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:177
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:69
MpegEncContext::bitstream_buffer
uint8_t * bitstream_buffer
Definition: mpegvideo.h:400
MpegEncContext::codec_id
enum AVCodecID codec_id
Definition: mpegvideo.h:100
MpegEncContext::b_bidir_back_mv_table_base
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:230
MpegEncContext::alt_inter_vlc
int alt_inter_vlc
alternative inter vlc
Definition: mpegvideo.h:363
MpegEncContext::intra_ac_vlc_length
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:296
ff_mpv_report_decode_progress
void ff_mpv_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo_dec.c:578
MpegEncContext::p_tex_bits
int p_tex_bits
Definition: mpegvideo.h:332
MpegEncContext::b_field_mv_table
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced B-frame encoding.
Definition: mpegvideo.h:241
MpegEncContext::intra_v_scantable
ScanTable intra_v_scantable
Definition: mpegvideo.h:81
pixblockdsp.h
MpegEncContext::chroma_intra_matrix
uint16_t chroma_intra_matrix[64]
Definition: mpegvideo.h:287
MpegEncContext::lambda_table
int * lambda_table
Definition: mpegvideo.h:196
MpegEncContext::rtp_mode
int rtp_mode
Definition: mpegvideo.h:478
MpegEncContext::rl_table_index
int rl_table_index
Definition: mpegvideo.h:414
MpegEncContext::chroma_format
int chroma_format
Definition: mpegvideo.h:465
MpegEncContext::time_increment_bits
int time_increment_bits
Definition: mpegvideo.h:372
MpegEncContext::studio_profile
int studio_profile
Definition: mpegvideo.h:369
MpegEncContext::rc_qmod_freq
int rc_qmod_freq
Definition: mpegvideo.h:528
MpegEncContext::ac_pred
int ac_pred
Definition: mpegvideo.h:73
MpegEncContext::dummy
int dummy
used as target for deprecated options
Definition: mpegvideo.h:565
MpegEncContext::codec_tag
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:108