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 "avcodec.h"
32 #include "blockdsp.h"
33 #include "error_resilience.h"
34 #include "fdctdsp.h"
35 #include "get_bits.h"
36 #include "h264chroma.h"
37 #include "h263dsp.h"
38 #include "hpeldsp.h"
39 #include "idctdsp.h"
40 #include "me_cmp.h"
41 #include "motion_est.h"
42 #include "mpegpicture.h"
43 #include "mpegvideodsp.h"
44 #include "mpegvideoencdsp.h"
45 #include "pixblockdsp.h"
46 #include "put_bits.h"
47 #include "ratecontrol.h"
48 #if FF_API_FLAG_TRUNCATED
49 #include "parser.h"
50 #endif
51 #include "mpegutils.h"
52 #include "qpeldsp.h"
53 #include "videodsp.h"
54 
55 #define MAX_THREADS 32
56 
57 #define MAX_B_FRAMES 16
58 
59 /**
60  * MpegEncContext.
61  */
62 typedef struct MpegEncContext {
63  AVClass *class;
64 
66  int ac_pred;
67  int block_last_index[12]; ///< last non zero coefficient in block
68  int h263_aic; ///< Advanced INTRA Coding (AIC)
69 
70  /* scantables */
71  ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce the cache usage
75 
76  /* WARNING: changes above this line require updates to hardcoded
77  * offsets used in ASM. */
78 
80  /* The following pointer is intended for codecs sharing code
81  * between decoder and encoder and in need of a common context to do so. */
82  void *private_ctx;
83  /* the following parameters must be initialized before encoding */
84  int width, height;///< picture size. must be a multiple of 16
85  int gop_size;
86  int intra_only; ///< if true, only intra pictures are generated
87  int64_t bit_rate; ///< wanted bit rate
88  enum OutputFormat out_format; ///< output format
89  int h263_pred; ///< use MPEG-4/H.263 ac/dc predictions
90  int pb_frame; ///< PB-frame mode (0 = none, 1 = base, 2 = improved)
91 
92 /* the following codec id fields are deprecated in favor of codec_id */
93  int h263_plus; ///< H.263+ headers
94  int h263_flv; ///< use flv H.263 header
95 
96  enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
97  int fixed_qscale; ///< fixed qscale if non zero
98  int encoding; ///< true if we are encoding (vs decoding)
99  int max_b_frames; ///< max number of B-frames for encoding
102  int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
103  int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
104  /* the following fields are managed internally by the encoder */
105 
106  /* sequence parameters */
108  int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
109  int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
110  int picture_number; //FIXME remove, unclear definition
111  int picture_in_gop_number; ///< 0-> first pic in gop, ...
112  int mb_width, mb_height; ///< number of MBs horizontally & vertically
113  int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
114  int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
115  int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
116  int mb_num; ///< number of MBs of a picture
117  ptrdiff_t linesize; ///< line size, in bytes, may be different from width
118  ptrdiff_t uvlinesize; ///< line size, for chroma in bytes, may be different from width
119  Picture *picture; ///< main picture buffer
120  Picture **input_picture; ///< next pictures on display order for encoding
121  Picture **reordered_input_picture; ///< pointer to the next pictures in coded order for encoding
122 
123  int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_send_frame()
124  /**
125  * pts difference between the first and second input frame, used for
126  * calculating dts of the first frame when there's a delay */
127  int64_t dts_delta;
128  /**
129  * reordered pts to be used as dts for the next output frame when there's
130  * a delay */
131  int64_t reordered_pts;
132 
133  /** bit output */
135 
136  int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
137  int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
139  int slice_context_count; ///< number of used thread_contexts
140 
141  /**
142  * copy of the previous picture structure.
143  * note, linesize & data, might not match the previous picture (for field pictures)
144  */
146 
147  /**
148  * copy of the next picture structure.
149  * note, linesize & data, might not match the next picture (for field pictures)
150  */
152 
153  /**
154  * Reference to the source picture for encoding.
155  * note, linesize & data, might not match the source picture (for field pictures)
156  */
158 
159  /**
160  * copy of the current picture structure.
161  * note, linesize & data, might not match the current picture (for field pictures)
162  */
163  Picture current_picture; ///< buffer to store the decompressed current picture
164 
165  Picture *last_picture_ptr; ///< pointer to the previous picture.
166  Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
167  Picture *current_picture_ptr; ///< pointer to the current picture
168  int last_dc[3]; ///< last DC values for MPEG-1
169  int16_t *dc_val_base;
170  int16_t *dc_val[3]; ///< used for MPEG-4 DC prediction, all 3 arrays must be continuous
171  const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
172  const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
173  const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (H.263)
175  uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
176  int16_t (*ac_val_base)[16];
177  int16_t (*ac_val[3])[16]; ///< used for MPEG-4 AC prediction, all 3 arrays must be continuous
178  int mb_skipped; ///< MUST BE SET only during DECODING
179  uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
180  and used for B-frame encoding & decoding (contains skip table of next P-frame) */
181  uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
182  uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
183  uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
184 
186 
187  int qscale; ///< QP
188  int chroma_qscale; ///< chroma QP
189  unsigned int lambda; ///< Lagrange multiplier used in rate distortion
190  unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
192  int adaptive_quant; ///< use adaptive quantization
193  int dquant; ///< qscale difference to prev qscale
194  int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
196  int last_pict_type; //FIXME removes
197  int last_non_b_pict_type; ///< used for MPEG-4 gmc B-frames & ratecontrol
199  int last_lambda_for[5]; ///< last lambda for a specific pict type
200  int skipdct; ///< skip dct and code zero residual
201 
202  /* motion compensation */
203  int unrestricted_mv; ///< mv can point outside of the coded picture
204  int h263_long_vectors; ///< use horrible H.263v1 long vector mode
205 
218  int f_code; ///< forward MV resolution
219  int b_code; ///< backward MV resolution for B-frames (MPEG-4)
220  int16_t (*p_mv_table_base)[2];
221  int16_t (*b_forw_mv_table_base)[2];
222  int16_t (*b_back_mv_table_base)[2];
225  int16_t (*b_direct_mv_table_base)[2];
226  int16_t (*p_field_mv_table_base)[2];
227  int16_t (*b_field_mv_table_base)[2];
228  int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) P-frame encoding
229  int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode B-frame encoding
230  int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode B-frame encoding
231  int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
232  int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode B-frame encoding
233  int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode B-frame encoding
234  int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced P-frame encoding
235  int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced B-frame encoding
236  uint8_t (*p_field_select_table[2]); ///< Only the first element is allocated
237  uint8_t (*b_field_select_table[2][2]); ///< Only the first element is allocated
238 
239  /* The following three arrays are encoder-only */
240  uint16_t *mb_var; ///< Table for MB variances
241  uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
242  uint8_t *mb_mean; ///< Table for MB luminance
243 
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 
304  int coded_score[12];
305 
306  /** precomputed matrix (combine qscale and DCT renorm) */
310  /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
311  uint16_t (*q_intra_matrix16)[2][64];
312  uint16_t (*q_chroma_intra_matrix16)[2][64];
313  uint16_t (*q_inter_matrix16)[2][64];
314 
315  /* noise reduction */
317  int dct_count[2];
318  uint16_t (*dct_offset)[64];
319 
320  /* bit rate control */
321  int64_t total_bits;
322  int frame_bits; ///< bits used for the current frame
323  int stuffing_bits; ///< bits used for stuffing
324  int next_lambda; ///< next lambda used for retrying to encode a frame
325  RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
326 
327  /* statistics, used for 2-pass encoding */
328  int mv_bits;
332  int i_count;
334  int misc_bits; ///< cbp, mb_type
335  int last_bits; ///< temp var used for calculating the above vars
336 
337  /* error concealment / resync */
338  int resync_mb_x; ///< x position of last resync marker
339  int resync_mb_y; ///< y position of last resync marker
340  GetBitContext last_resync_gb; ///< used to search for the next resync marker
341  int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
342 
343 #if FF_API_FLAG_TRUNCATED
345 #endif
346 
347  /* H.263 specific */
349  int obmc; ///< overlapped block motion compensation
350  int mb_info; ///< interval for outputting info about mb offsets as side data
352  uint8_t *mb_info_ptr;
354  int ehc_mode;
355 
356  /* H.263+ specific */
357  int umvplus; ///< == H.263+ && unrestricted_mv
358  int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
360  int alt_inter_vlc; ///< alternative inter vlc
364 
365  /* MPEG-4 specific */
368  ///< number of bits to represent the fractional part of time (encoder only)
371  int time_base; ///< time in seconds of last I,P,S Frame
372  int64_t time; ///< time of current frame
374  uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
375  uint16_t pb_time; ///< time distance between the last b and p,s,i frame
376  uint16_t pp_field_time;
377  uint16_t pb_field_time; ///< like above, just for interlaced
379  int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
380  int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
381  int mcsel;
383  int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
385  int data_partitioning; ///< data partitioning flag from header
386  int partitioned_frame; ///< is current frame partitioned
387  int low_delay; ///< no reordering needed / has no B-frames
388  PutBitContext tex_pb; ///< used for data partitioned VOPs
389  PutBitContext pb2; ///< used for data partitioned VOPs
391  int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG-4
392 
393  /* divx specific, used to workaround (many) bugs in divx5 */
395  uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
398 
399  /* RV10 specific */
400  int rv10_version; ///< RV10 version: 0 or 3
402 
403  /* MJPEG specific */
405  int esc_pos;
406 
407  /* MSMPEG4 specific */
413  int slice_height; ///< in macroblocks
414  int first_slice_line; ///< used in MPEG-4 too to handle resync markers
416  int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
421  int mspel;
422 
423  /* decompression specific */
425 
426  /* MPEG-1 specific */
427  int last_mv_dir; ///< last mv_dir, used for B-frame encoding
428  int vbv_delay_pos; ///< offset of vbv_delay in the bitstream
429 
430  /* MPEG-2-specific - I wished not to have to support this mess. */
432  int mpeg_f_code[2][2];
433 
434  // picture structure defines are loaded from mpegutils.h
436 
445 #define VIDEO_FORMAT_COMPONENT 0
446 #define VIDEO_FORMAT_PAL 1
447 #define VIDEO_FORMAT_NTSC 2
448 #define VIDEO_FORMAT_SECAM 3
449 #define VIDEO_FORMAT_MAC 4
450 #define VIDEO_FORMAT_UNSPECIFIED 5
454 #define CHROMA_420 1
455 #define CHROMA_422 2
456 #define CHROMA_444 3
457  int chroma_x_shift;//depend on pix_format, that depend on chroma_format
459 
461  int full_pel[2];
463  int first_field; ///< is 1 for the first field of a field picture 0 otherwise
464 
465  /* RTP specific */
466  int rtp_mode;
468 
469  uint8_t *ptr_lastgob;
470  int16_t (*pblocks[12])[64];
471 
472  int16_t (*block)[64]; ///< points to one of the following blocks
473  int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
474  int (*decode_mb)(struct MpegEncContext *s, int16_t block[12][64]); // used by some codecs to avoid a switch()
475 
476 #define SLICE_OK 0
477 #define SLICE_ERROR -1
478 #define SLICE_END -2 ///<end marker found
479 #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
480 
482  int16_t *block/*align 16*/, int n, int qscale);
484  int16_t *block/*align 16*/, int n, int qscale);
486  int16_t *block/*align 16*/, int n, int qscale);
488  int16_t *block/*align 16*/, int n, int qscale);
490  int16_t *block/*align 16*/, int n, int qscale);
492  int16_t *block/*align 16*/, int n, int qscale);
493  void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
494  int16_t *block/*align 16*/, int n, int qscale);
495  void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (MPEG-4 can use both)
496  int16_t *block/*align 16*/, int n, int qscale);
497  int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
498  int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
499  void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
500 
501  int mpv_flags; ///< flags set by private options
503 
504  /**
505  * ratecontrol qmin qmax limiting method
506  * 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax.
507  */
508  float rc_qsquish;
509  float rc_qmod_amp;
514  int lmin, lmax;
516 
517  char *rc_eq;
518 
519  /* temp buffers for rate control */
520  float *cplx_tab, *bits_tab;
521 
522  /* flag to indicate a reinitialization is required, e.g. after
523  * a frame size change */
525 
527 
529 
530  /* temporary frames used by b_frame_strategy = 2 */
534 
535  /* frame skip options for encoding */
540 
543 
546 
547 
548 /**
549  * Set the given MpegEncContext to common defaults (same for encoding
550  * and decoding). The changed fields will not depend upon the prior
551  * state of the MpegEncContext.
552  */
554 
562 /**
563  * Initialize an MpegEncContext's thread contexts. Presumes that
564  * slice_context_count is already set and that all the fields
565  * that are freed/reset in free_duplicate_context() are NULL.
566  */
568 /**
569  * Initialize and allocates MpegEncContext fields dependent on the resolution.
570  */
572 /**
573  * Frees and resets MpegEncContext fields depending on the resolution
574  * as well as the slice thread contexts.
575  * Is used during resolution changes to avoid a full reinitialization of the
576  * codec.
577  */
579 
581 
582 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64]);
583 
585 
587 void ff_set_qscale(MpegEncContext * s, int qscale);
588 
591 
593  uint8_t *dest_y, uint8_t *dest_cb,
594  uint8_t *dest_cr, int dir,
595  uint8_t *const *ref_picture,
596  op_pixels_func (*pix_op)[4],
597  qpel_mc_func (*qpix_op)[16]);
598 
599 static inline void ff_update_block_index(MpegEncContext *s, int bits_per_raw_sample,
600  int lowres, int chroma_x_shift)
601 {
602  const int bytes_per_pixel = 1 + (bits_per_raw_sample > 8);
603  const int block_size = (8 * bytes_per_pixel) >> lowres;
604 
605  s->block_index[0]+=2;
606  s->block_index[1]+=2;
607  s->block_index[2]+=2;
608  s->block_index[3]+=2;
609  s->block_index[4]++;
610  s->block_index[5]++;
611  s->dest[0]+= 2*block_size;
612  s->dest[1] += (2 >> chroma_x_shift) * block_size;
613  s->dest[2] += (2 >> chroma_x_shift) * block_size;
614 }
615 
616 #endif /* AVCODEC_MPEGVIDEO_H */
MpegEncContext::i_count
int i_count
Definition: mpegvideo.h:332
MpegEncContext::h264chroma
H264ChromaContext h264chroma
Definition: mpegvideo.h:208
ratecontrol.h
MpegEncContext::picture
Picture * picture
main picture buffer
Definition: mpegvideo.h:119
MpegEncContext::mb_skipped
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:178
MpegEncContext::mb_type
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:277
MpegEncContext::new_picture
AVFrame * new_picture
Reference to the source picture for encoding.
Definition: mpegvideo.h:157
MpegEncContext::h263_flv
int h263_flv
use flv H.263 header
Definition: mpegvideo.h:94
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:311
MpegEncContext::rtp_payload_size
int rtp_payload_size
Definition: mpegvideo.h:467
MpegEncContext::b_field_select_table
uint8_t *[2][2] b_field_select_table
Only the first element is allocated.
Definition: mpegvideo.h:237
MpegEncContext::progressive_sequence
int progressive_sequence
Definition: mpegvideo.h:431
MpegEncContext::luma_elim_threshold
int luma_elim_threshold
Definition: mpegvideo.h:100
MpegEncContext::data_partitioning
int data_partitioning
data partitioning flag from header
Definition: mpegvideo.h:385
MpegEncContext::stuffing_bits
int stuffing_bits
bits used for stuffing
Definition: mpegvideo.h:323
MpegEncContext::dct_unquantize_mpeg1_intra
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:481
MpegEncContext::lambda
unsigned int lambda
Lagrange multiplier used in rate distortion.
Definition: mpegvideo.h:189
blockdsp.h
MpegEncContext::quantizer_noise_shaping
int quantizer_noise_shaping
Definition: mpegvideo.h:502
MpegEncContext::b_code
int b_code
backward MV resolution for B-frames (MPEG-4)
Definition: mpegvideo.h:219
MpegEncContext::rc_initial_cplx
float rc_initial_cplx
Definition: mpegvideo.h:511
MpegEncContext::gb
GetBitContext gb
Definition: mpegvideo.h:424
MpegEncContext::inter_intra_pred
int inter_intra_pred
Definition: mpegvideo.h:420
MpegEncContext::top_field_first
int top_field_first
Definition: mpegvideo.h:439
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:108
MpegEncContext::dct_unquantize_h263_inter
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:491
MpegEncContext::total_bits
int64_t total_bits
Definition: mpegvideo.h:321
MpegEncContext::pp_time
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:374
MpegEncContext::rc_context
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
Definition: mpegvideo.h:325
MpegEncContext::mb_mean
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegvideo.h:242
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:99
MpegEncContext::block_index
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:279
MpegEncContext::frame_skip_exp
int frame_skip_exp
Definition: mpegvideo.h:538
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:109
MpegEncContext::slice_height
int slice_height
in macroblocks
Definition: mpegvideo.h:413
MpegEncContext::current_picture
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:163
MpegEncContext::bits_tab
float * bits_tab
Definition: mpegvideo.h:520
MpegEncContext::partitioned_frame
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:386
MpegEncContext::y_dc_scale
int y_dc_scale
Definition: mpegvideo.h:65
MpegEncContext::dct_offset
uint16_t(* dct_offset)[64]
Definition: mpegvideo.h:318
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
MpegEncContext::mb_num
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:116
MpegEncContext::ac_val_base
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:176
MpegEncContext::dct_unquantize_mpeg2_intra
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:485
MpegEncContext::workaround_bugs
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:102
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:131
MpegEncContext::h263dsp
H263DSPContext h263dsp
Definition: mpegvideo.h:217
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:112
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:151
MpegEncContext::last_dc
int last_dc[3]
last DC values for MPEG-1
Definition: mpegvideo.h:168
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:188
MpegEncContext::repeat_first_field
int repeat_first_field
Definition: mpegvideo.h:451
MpegEncContext::mv_table_index
int mv_table_index
Definition: mpegvideo.h:408
MpegEncContext::vbv_delay
int vbv_delay
Definition: mpegvideo.h:195
MpegEncContext::input_picture
Picture ** input_picture
next pictures on display order for encoding
Definition: mpegvideo.h:120
MpegEncContext::ac_val
int16_t(*[3] ac_val)[16]
used for MPEG-4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:177
MpegEncContext::gob_index
int gob_index
Definition: mpegvideo.h:348
MpegEncContext::fdsp
FDCTDSPContext fdsp
Definition: mpegvideo.h:207
ERContext
Definition: error_resilience.h:53
MpegEncContext::unrestricted_mv
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:203
MpegEncContext::dest
uint8_t * dest[3]
Definition: mpegvideo.h:281
MpegEncContext::avctx
struct AVCodecContext * avctx
Definition: mpegvideo.h:79
MpegEncContext::last_non_b_time
int64_t last_non_b_time
Definition: mpegvideo.h:373
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:166
MpegEncContext::pb
PutBitContext pb
bit output
Definition: mpegvideo.h:134
MpegEncContext::mcsel
int mcsel
Definition: mpegvideo.h:381
MpegEncContext::mb_num_left
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:341
BlockDSPContext
Definition: blockdsp.h:34
MpegEncContext::height
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:84
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:498
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:127
MpegEncContext::dct_unquantize_h263_intra
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:489
MpegEncContext::frame_skip_cmp
int frame_skip_cmp
Definition: mpegvideo.h:539
MpegEncContext::last_resync_gb
GetBitContext last_resync_gb
used to search for the next resync marker
Definition: mpegvideo.h:340
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:412
MpegVideoDSPContext
Definition: mpegvideodsp.h:28
MpegEncContext::out_format
enum OutputFormat out_format
output format
Definition: mpegvideo.h:88
MpegEncContext::esc_pos
int esc_pos
Definition: mpegvideo.h:405
MpegEncContext::border_masking
float border_masking
Definition: mpegvideo.h:513
MpegEncContext::time_base
int time_base
time in seconds of last I,P,S Frame
Definition: mpegvideo.h:371
MpegEncContext::mpeg_f_code
int mpeg_f_code[2][2]
Definition: mpegvideo.h:432
MpegEncContext::intra_scantable
ScanTable intra_scantable
Definition: mpegvideo.h:72
FDCTDSPContext
Definition: fdctdsp.h:26
ParseContext
Definition: parser.h:28
MpegEncContext::mb_height
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:112
MpegEncContext::pict_type
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:194
MpegEncContext::h263_pred
int h263_pred
use MPEG-4/H.263 ac/dc predictions
Definition: mpegvideo.h:89
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:181
MpegEncContext::mpv_flags
int mpv_flags
flags set by private options
Definition: mpegvideo.h:501
MpegEncContext::chroma_y_shift
int chroma_y_shift
Definition: mpegvideo.h:458
MpegEncContext::intra_penalty
int intra_penalty
Definition: mpegvideo.h:544
MpegEncContext::picture_structure
int picture_structure
Definition: mpegvideo.h:435
MpegEncContext::intra_only
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:86
MpegEncContext::vdsp
VideoDSPContext vdsp
Definition: mpegvideo.h:216
MpegEncContext::padding_bug_score
int padding_bug_score
used to detect the VERY common padding bug in MPEG-4
Definition: mpegvideo.h:391
GetBitContext
Definition: get_bits.h:61
MpegEncContext::linesize
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:117
MpegEncContext::mc_mb_var
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegvideo.h:241
MpegEncContext::bdsp
BlockDSPContext bdsp
Definition: mpegvideo.h:206
MpegEncContext::umvplus
int umvplus
== H.263+ && unrestricted_mv
Definition: mpegvideo.h:357
MpegEncContext::ptr_lastgob
uint8_t * ptr_lastgob
Definition: mpegvideo.h:469
MpegEncContext::width
int width
Definition: mpegvideo.h:84
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:223
ff_mpv_idct_init
void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:331
MpegEncContext::gop_size
int gop_size
Definition: mpegvideo.h:85
MpegEncContext::frame_pred_frame_dct
int frame_pred_frame_dct
Definition: mpegvideo.h:438
MpegEncContext::q_intra_matrix
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
Definition: mpegvideo.h:307
MpegEncContext::i_tex_bits
int i_tex_bits
Definition: mpegvideo.h:330
MpegEncContext::pblocks
int16_t(*[12] pblocks)[64]
Definition: mpegvideo.h:470
RateControlContext
rate control context.
Definition: ratecontrol.h:63
H263DSPContext
Definition: h263dsp.h:26
MpegEncContext::pb_frame
int pb_frame
PB-frame mode (0 = none, 1 = base, 2 = improved)
Definition: mpegvideo.h:90
ff_set_qscale
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:1709
MpegEncContext::coded_block
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:175
MpegEncContext::pp_field_time
uint16_t pp_field_time
Definition: mpegvideo.h:376
s
#define s(width, name)
Definition: cbs_vp9.c:256
MpegEncContext::mpvencdsp
MpegvideoEncDSPContext mpvencdsp
Definition: mpegvideo.h:213
MpegEncContext::last_time_base
int last_time_base
Definition: mpegvideo.h:370
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:115
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:230
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:507
MpegEncContext::b_sensitivity
int b_sensitivity
Definition: mpegvideo.h:533
MpegEncContext::bit_rate
int64_t bit_rate
wanted bit rate
Definition: mpegvideo.h:87
OutputFormat
OutputFormat
Definition: mpegutils.h:116
MpegEncContext::p_field_mv_table_base
int16_t(* p_field_mv_table_base)[2]
Definition: mpegvideo.h:226
MpegEncContext::max_qcoeff
int max_qcoeff
maximum encodable coefficient
Definition: mpegvideo.h:294
MpegEncContext::loop_filter
int loop_filter
Definition: mpegvideo.h:362
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:123
MpegEncContext::sprite_delta
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
Definition: mpegvideo.h:380
get_bits.h
MpegEncContext::frame_bits
int frame_bits
bits used for the current frame
Definition: mpegvideo.h:322
MpegEncContext::denoise_dct
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
Definition: mpegvideo.h:499
MpegEncContext::inter_ac_vlc_length
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:300
MpegEncContext::divx_packed
int divx_packed
Definition: mpegvideo.h:394
MpegEncContext::brd_scale
int brd_scale
Definition: mpegvideo.h:442
MpegEncContext::dct_quantize
int(* dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:497
PutBitContext
Definition: put_bits.h:50
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:113
MpegEncContext::bitstream_buffer_size
int bitstream_buffer_size
Definition: mpegvideo.h:396
MpegEncContext::low_delay
int low_delay
no reordering needed / has no B-frames
Definition: mpegvideo.h:387
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:233
PixblockDSPContext
Definition: pixblockdsp.h:28
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:1649
MECmpContext
Definition: me_cmp.h:53
MpegEncContext::prev_mb_info
int prev_mb_info
Definition: mpegvideo.h:351
MpegEncContext::pb2
PutBitContext pb2
used for data partitioned VOPs
Definition: mpegvideo.h:389
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:452
ff_mpv_common_end
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:879
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:204
MpegEncContext::dct_error_sum
int(* dct_error_sum)[64]
Definition: mpegvideo.h:316
MpegEncContext::f_code
int f_code
forward MV resolution
Definition: mpegvideo.h:218
MpegEncContext::header_bits
int header_bits
Definition: mpegvideo.h:329
MpegEncContext::h263_aic
int h263_aic
Advanced INTRA Coding (AIC)
Definition: mpegvideo.h:68
MpegEncContext::parse_context
ParseContext parse_context
Definition: mpegvideo.h:344
MpegEncContext::esc3_run_length
int esc3_run_length
Definition: mpegvideo.h:419
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:228
MpegEncContext::y_dc_scale_table
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:171
MpegEncContext::inter_matrix
uint16_t inter_matrix[64]
Definition: mpegvideo.h:288
MpegEncContext::mecc
MECmpContext mecc
Definition: mpegvideo.h:211
MpegEncContext::hdsp
HpelDSPContext hdsp
Definition: mpegvideo.h:209
MpegEncContext::decode_mb
int(* decode_mb)(struct MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.h:474
MpegEncContext::concealment_motion_vectors
int concealment_motion_vectors
Definition: mpegvideo.h:440
MpegEncContext::mb_info_ptr
uint8_t * mb_info_ptr
Definition: mpegvideo.h:352
MpegEncContext::mv_bits
int mv_bits
Definition: mpegvideo.h:328
MpegEncContext::rc_buffer_aggressivity
float rc_buffer_aggressivity
Definition: mpegvideo.h:512
MpegEncContext::b8_stride
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:114
lowres
static int lowres
Definition: ffplay.c:335
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:483
MpegEncContext::last_picture_ptr
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:165
MpegEncContext::pdsp
PixblockDSPContext pdsp
Definition: mpegvideo.h:214
MpegEncContext::me
MotionEstContext me
Definition: mpegvideo.h:268
MpegEncContext::slice_context_count
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:139
MpegEncContext::scenechange_threshold
int scenechange_threshold
Definition: mpegvideo.h:541
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:227
MpegEncContext::pb_time
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:375
MpegEncContext::q_inter_matrix16
uint16_t(* q_inter_matrix16)[2][64]
Definition: mpegvideo.h:313
MpegEncContext::quant_precision
int quant_precision
Definition: mpegvideo.h:382
qpel_mc_func
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
MpegEncContext::private_ctx
void * private_ctx
Definition: mpegvideo.h:82
MpegEncContext::blocks
int16_t(* blocks)[12][64]
Definition: mpegvideo.h:473
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:47
MpegEncContext::idsp
IDCTDSPContext idsp
Definition: mpegvideo.h:210
MpegEncContext::c_dc_scale
int c_dc_scale
Definition: mpegvideo.h:65
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:231
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:377
MpegEncContext::coded_block_base
uint8_t * coded_block_base
Definition: mpegvideo.h:174
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::q_chroma_intra_matrix16
uint16_t(* q_chroma_intra_matrix16)[2][64]
Definition: mpegvideo.h:312
mpegvideodsp.h
MpegEncContext::mb_intra
int mb_intra
Definition: mpegvideo.h:276
MpegEncContext::mdsp
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:212
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:173
MpegEncContext::last_mb_info
int last_mb_info
Definition: mpegvideo.h:351
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:187
MpegEncContext::first_slice_line
int first_slice_line
used in MPEG-4 too to handle resync markers
Definition: mpegvideo.h:414
MpegEncContext::frame_skip_factor
int frame_skip_factor
Definition: mpegvideo.h:537
MpegEncContext::intra_matrix
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:286
ff_update_block_index
static void ff_update_block_index(MpegEncContext *s, int bits_per_raw_sample, int lowres, int chroma_x_shift)
Definition: mpegvideo.h:599
MpegEncContext::lambda2
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:190
MpegEncContext::adaptive_quant
int adaptive_quant
use adaptive quantization
Definition: mpegvideo.h:192
MpegEncContext::v_edge_pos
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:115
MpegEncContext::dct_count
int dct_count[2]
Definition: mpegvideo.h:317
MpegEncContext::tmp_frames
AVFrame * tmp_frames[MAX_B_FRAMES+2]
Definition: mpegvideo.h:531
MpegEncContext::b_frame_strategy
int b_frame_strategy
Definition: mpegvideo.h:532
MpegEncContext::qdsp
QpelDSPContext qdsp
Definition: mpegvideo.h:215
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:229
MpegEncContext::sprite_warping_accuracy
int sprite_warping_accuracy
Definition: mpegvideo.h:384
h264chroma.h
MpegEncContext::intra_h_scantable
ScanTable intra_h_scantable
Definition: mpegvideo.h:73
MpegEncContext::interlaced_dct
int interlaced_dct
Definition: mpegvideo.h:462
MpegEncContext::error_rate
int error_rate
Definition: mpegvideo.h:528
MpegEncContext::encoding
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:98
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:179
MAX_THREADS
#define MAX_THREADS
Definition: mpegvideo.h:55
MpegEncContext::dc_val
int16_t * dc_val[3]
used for MPEG-4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:170
MpegEncContext::quarter_sample
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:383
MpegEncContext::context_initialized
int context_initialized
Definition: mpegvideo.h:107
MpegEncContext::p_mv_table_base
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:220
MpegEncContext::dct_precision
int dct_precision
number of bits to represent the fractional part of time (encoder only)
Definition: mpegvideo.h:367
MpegEncContext::q_chroma_intra_matrix
int(* q_chroma_intra_matrix)[64]
Definition: mpegvideo.h:308
MpegEncContext::b_direct_mv_table_base
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:225
mpegpicture.h
MpegEncContext::rl_chroma_table_index
int rl_chroma_table_index
Definition: mpegvideo.h:410
MpegEncContext::picture_in_gop_number
int picture_in_gop_number
0-> first pic in gop, ...
Definition: mpegvideo.h:111
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 *const *ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])
Definition: mpegvideo_motion.c:975
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:525
MpegEncContext::context_reinit
int context_reinit
Definition: mpegvideo.h:524
MpegEncContext::p_field_select_table
uint8_t *[2] p_field_select_table
Only the first element is allocated.
Definition: mpegvideo.h:236
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:738
ff_init_block_index
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:1673
MpegEncContext::mb_var
uint16_t * mb_var
Table for MB variances.
Definition: mpegvideo.h:240
MpegEncContext::full_pel
int full_pel[2]
Definition: mpegvideo.h:461
MpegEncContext::block_last_index
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:67
MpegEncContext::real_sprite_warping_points
int real_sprite_warping_points
Definition: mpegvideo.h:378
MpegEncContext::chroma_elim_threshold
int chroma_elim_threshold
Definition: mpegvideo.h:101
MpegEncContext::dc_val_base
int16_t * dc_val_base
Definition: mpegvideo.h:169
MpegEncContext::current_picture_ptr
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:167
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:118
MpegEncContext::progressive_frame
int progressive_frame
Definition: mpegvideo.h:460
MpegEncContext::allocated_bitstream_buffer_size
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:397
MpegEncContext::chroma_inter_matrix
uint16_t chroma_inter_matrix[64]
Definition: mpegvideo.h:289
MpegEncContext::mjpeg_ctx
struct MJpegContext * mjpeg_ctx
Definition: mpegvideo.h:404
ff_update_duplicate_context
int ff_update_duplicate_context(MpegEncContext *dst, const MpegEncContext *src)
Definition: mpegvideo.c:476
MpegEncContext::esc3_level_length
int esc3_level_length
Definition: mpegvideo.h:418
MpegEncContext::obmc
int obmc
overlapped block motion compensation
Definition: mpegvideo.h:349
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:388
MpegEncContext::mb_x
int mb_x
Definition: mpegvideo.h:274
ff_mpv_common_init_ppc
void ff_mpv_common_init_ppc(MpegEncContext *s)
Definition: mpegvideo_altivec.c:119
MpegEncContext::thread_context
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:138
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:232
MpegEncContext::sc
ScratchpadContext sc
Definition: mpegvideo.h:185
fdctdsp.h
MpegEncContext::dc_table_index
int dc_table_index
Definition: mpegvideo.h:411
MpegEncContext::rc_qmod_amp
float rc_qmod_amp
Definition: mpegvideo.h:509
MpegEncContext::intra_vlc_format
int intra_vlc_format
Definition: mpegvideo.h:443
parser.h
MpegEncContext::skipdct
int skipdct
skip dct and code zero residual
Definition: mpegvideo.h:200
MpegEncContext::er
ERContext er
Definition: mpegvideo.h:526
MpegEncContext::last_lambda_for
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:199
MpegEncContext::b_forw_mv_table_base
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:221
MpegEncContext::picture_number
int picture_number
Definition: mpegvideo.h:110
MpegEncContext::dct_unquantize_inter
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:495
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:359
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:1371
MpegEncContext::fixed_qscale
int fixed_qscale
fixed qscale if non zero
Definition: mpegvideo.h:97
MpegEncContext::last_non_b_pict_type
int last_non_b_pict_type
used for MPEG-4 gmc B-frames & ratecontrol
Definition: mpegvideo.h:197
MpegEncContext::sprite_offset
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
Definition: mpegvideo.h:379
MpegEncContext::mspel
int mspel
Definition: mpegvideo.h:421
IDCTDSPContext
Definition: idctdsp.h:53
MpegEncContext::rv10_version
int rv10_version
RV10 version: 0 or 3.
Definition: mpegvideo.h:400
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:234
MpegEncContext::block
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:472
MpegEncContext::dquant
int dquant
qscale difference to prev qscale
Definition: mpegvideo.h:193
MpegEncContext::chroma_x_shift
int chroma_x_shift
Definition: mpegvideo.h:457
QpelDSPContext
quarterpel DSP context
Definition: qpeldsp.h:72
AVCodecContext
main external API structure.
Definition: avcodec.h:398
MpegEncContext::intra_dc_precision
int intra_dc_precision
Definition: mpegvideo.h:437
MpegEncContext::per_mb_rl_table
int per_mb_rl_table
Definition: mpegvideo.h:417
MpegEncContext::skip_count
int skip_count
Definition: mpegvideo.h:333
MpegEncContext::flipflop_rounding
int flipflop_rounding
Definition: mpegvideo.h:415
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:354
MpegEncContext::last_bits
int last_bits
temp var used for calculating the above vars
Definition: mpegvideo.h:335
MpegEncContext::modified_quant
int modified_quant
Definition: mpegvideo.h:361
MpegEncContext::lmin
int lmin
Definition: mpegvideo.h:514
error_resilience.h
MpegEncContext::rv10_first_dc_coded
int rv10_first_dc_coded[3]
Definition: mpegvideo.h:401
MpegEncContext::rc_eq
char * rc_eq
Definition: mpegvideo.h:517
mpegvideoencdsp.h
MpegEncContext::vbv_ignore_qmax
int vbv_ignore_qmax
Definition: mpegvideo.h:515
MpegEncContext::lmax
int lmax
Definition: mpegvideo.h:514
MpegEncContext::time
int64_t time
time of current frame
Definition: mpegvideo.h:372
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:145
MpegEncContext::pred_dir_table
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:183
MpegEncContext::dct_unquantize_intra
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:493
MpegEncContext::resync_mb_x
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:338
VideoDSPContext
Definition: videodsp.h:40
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:358
MpegEncContext::dct_unquantize_mpeg2_inter
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:487
MpegEncContext::mpeg_quant
int mpeg_quant
Definition: mpegvideo.h:390
MpegEncContext::mb_info_size
int mb_info_size
Definition: mpegvideo.h:353
MpegEncContext::noise_reduction
int noise_reduction
Definition: mpegvideo.h:542
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:71
MpegEncContext::luma_dc_vlc_length
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:302
MpegEncContext::droppable
int droppable
Definition: mpegvideo.h:198
MpegEncContext::frame_skip_threshold
int frame_skip_threshold
Definition: mpegvideo.h:536
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:182
ff_mpv_common_init_arm
void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:44
MpegEncContext::vbv_delay_pos
int vbv_delay_pos
offset of vbv_delay in the bitstream
Definition: mpegvideo.h:428
MpegEncContext::first_field
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:463
MpegEncContext::q_scale_type
int q_scale_type
Definition: mpegvideo.h:441
H264ChromaContext
Definition: h264chroma.h:27
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:427
MpegEncContext::q_inter_matrix
int(* q_inter_matrix)[64]
Definition: mpegvideo.h:309
MAX_B_FRAMES
#define MAX_B_FRAMES
Definition: mpegvideo.h:57
videodsp.h
MpegEncContext::mb_info
int mb_info
interval for outputting info about mb offsets as side data
Definition: mpegvideo.h:350
MpegEncContext::next_lambda
int next_lambda
next lambda used for retrying to encode a frame
Definition: mpegvideo.h:324
MpegEncContext::reordered_input_picture
Picture ** reordered_input_picture
pointer to the next pictures in coded order for encoding
Definition: mpegvideo.h:121
MpegEncContext::coded_score
int coded_score[12]
Definition: mpegvideo.h:304
MpegEncContext::last_pict_type
int last_pict_type
Definition: mpegvideo.h:196
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:416
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:825
MpegEncContext::misc_bits
int misc_bits
cbp, mb_type
Definition: mpegvideo.h:334
MpegEncContext::resync_mb_y
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:339
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:137
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:508
MpegEncContext::h263_plus
int h263_plus
H.263+ headers.
Definition: mpegvideo.h:93
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:136
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:222
MpegEncContext::alternate_scan
int alternate_scan
Definition: mpegvideo.h:444
MpegEncContext::cplx_tab
float * cplx_tab
Definition: mpegvideo.h:520
int
int
Definition: ffmpeg_filter.c:155
put_bits.h
MpegEncContext::custom_pcf
int custom_pcf
Definition: mpegvideo.h:363
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:172
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:62
MpegEncContext::bitstream_buffer
uint8_t * bitstream_buffer
Definition: mpegvideo.h:395
MpegEncContext::codec_id
enum AVCodecID codec_id
Definition: mpegvideo.h:96
MpegEncContext::b_bidir_back_mv_table_base
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:224
MpegEncContext::alt_inter_vlc
int alt_inter_vlc
alternative inter vlc
Definition: mpegvideo.h:360
MpegEncContext::intra_ac_vlc_length
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:296
MpegEncContext::p_tex_bits
int p_tex_bits
Definition: mpegvideo.h:331
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:235
MpegEncContext::intra_v_scantable
ScanTable intra_v_scantable
Definition: mpegvideo.h:74
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:191
MpegEncContext::rtp_mode
int rtp_mode
Definition: mpegvideo.h:466
MpegEncContext::rl_table_index
int rl_table_index
Definition: mpegvideo.h:409
MpegEncContext::chroma_format
int chroma_format
Definition: mpegvideo.h:453
MpegEncContext::time_increment_bits
int time_increment_bits
Definition: mpegvideo.h:369
MpegEncContext::studio_profile
int studio_profile
Definition: mpegvideo.h:366
MpegEncContext::rc_qmod_freq
int rc_qmod_freq
Definition: mpegvideo.h:510
MpegEncContext::ac_pred
int ac_pred
Definition: mpegvideo.h:66
MpegEncContext::codec_tag
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:103