FFmpeg  3.4.9
mpegvideo.c
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1 /*
2  * The simplest mpeg encoder (well, it was the simplest!)
3  * Copyright (c) 2000,2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24 
25 /**
26  * @file
27  * The simplest mpeg encoder (well, it was the simplest!).
28  */
29 
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
35 #include "libavutil/timer.h"
36 #include "avcodec.h"
37 #include "blockdsp.h"
38 #include "h264chroma.h"
39 #include "idctdsp.h"
40 #include "internal.h"
41 #include "mathops.h"
42 #include "mpeg_er.h"
43 #include "mpegutils.h"
44 #include "mpegvideo.h"
45 #include "mpegvideodata.h"
46 #include "mjpegenc.h"
47 #include "msmpeg4.h"
48 #include "qpeldsp.h"
49 #include "thread.h"
50 #include "wmv2.h"
51 #include <limits.h>
52 
54  int16_t *block, int n, int qscale)
55 {
56  int i, level, nCoeffs;
57  const uint16_t *quant_matrix;
58 
59  nCoeffs= s->block_last_index[n];
60 
61  block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
62  /* XXX: only MPEG-1 */
63  quant_matrix = s->intra_matrix;
64  for(i=1;i<=nCoeffs;i++) {
65  int j= s->intra_scantable.permutated[i];
66  level = block[j];
67  if (level) {
68  if (level < 0) {
69  level = -level;
70  level = (int)(level * qscale * quant_matrix[j]) >> 3;
71  level = (level - 1) | 1;
72  level = -level;
73  } else {
74  level = (int)(level * qscale * quant_matrix[j]) >> 3;
75  level = (level - 1) | 1;
76  }
77  block[j] = level;
78  }
79  }
80 }
81 
83  int16_t *block, int n, int qscale)
84 {
85  int i, level, nCoeffs;
86  const uint16_t *quant_matrix;
87 
88  nCoeffs= s->block_last_index[n];
89 
90  quant_matrix = s->inter_matrix;
91  for(i=0; i<=nCoeffs; i++) {
92  int j= s->intra_scantable.permutated[i];
93  level = block[j];
94  if (level) {
95  if (level < 0) {
96  level = -level;
97  level = (((level << 1) + 1) * qscale *
98  ((int) (quant_matrix[j]))) >> 4;
99  level = (level - 1) | 1;
100  level = -level;
101  } else {
102  level = (((level << 1) + 1) * qscale *
103  ((int) (quant_matrix[j]))) >> 4;
104  level = (level - 1) | 1;
105  }
106  block[j] = level;
107  }
108  }
109 }
110 
112  int16_t *block, int n, int qscale)
113 {
114  int i, level, nCoeffs;
115  const uint16_t *quant_matrix;
116 
117  if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
118  else qscale <<= 1;
119 
120  if(s->alternate_scan) nCoeffs= 63;
121  else nCoeffs= s->block_last_index[n];
122 
123  block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
124  quant_matrix = s->intra_matrix;
125  for(i=1;i<=nCoeffs;i++) {
126  int j= s->intra_scantable.permutated[i];
127  level = block[j];
128  if (level) {
129  if (level < 0) {
130  level = -level;
131  level = (int)(level * qscale * quant_matrix[j]) >> 4;
132  level = -level;
133  } else {
134  level = (int)(level * qscale * quant_matrix[j]) >> 4;
135  }
136  block[j] = level;
137  }
138  }
139 }
140 
142  int16_t *block, int n, int qscale)
143 {
144  int i, level, nCoeffs;
145  const uint16_t *quant_matrix;
146  int sum=-1;
147 
148  if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
149  else qscale <<= 1;
150 
151  if(s->alternate_scan) nCoeffs= 63;
152  else nCoeffs= s->block_last_index[n];
153 
154  block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
155  sum += block[0];
156  quant_matrix = s->intra_matrix;
157  for(i=1;i<=nCoeffs;i++) {
158  int j= s->intra_scantable.permutated[i];
159  level = block[j];
160  if (level) {
161  if (level < 0) {
162  level = -level;
163  level = (int)(level * qscale * quant_matrix[j]) >> 4;
164  level = -level;
165  } else {
166  level = (int)(level * qscale * quant_matrix[j]) >> 4;
167  }
168  block[j] = level;
169  sum+=level;
170  }
171  }
172  block[63]^=sum&1;
173 }
174 
176  int16_t *block, int n, int qscale)
177 {
178  int i, level, nCoeffs;
179  const uint16_t *quant_matrix;
180  int sum=-1;
181 
182  if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
183  else qscale <<= 1;
184 
185  if(s->alternate_scan) nCoeffs= 63;
186  else nCoeffs= s->block_last_index[n];
187 
188  quant_matrix = s->inter_matrix;
189  for(i=0; i<=nCoeffs; i++) {
190  int j= s->intra_scantable.permutated[i];
191  level = block[j];
192  if (level) {
193  if (level < 0) {
194  level = -level;
195  level = (((level << 1) + 1) * qscale *
196  ((int) (quant_matrix[j]))) >> 5;
197  level = -level;
198  } else {
199  level = (((level << 1) + 1) * qscale *
200  ((int) (quant_matrix[j]))) >> 5;
201  }
202  block[j] = level;
203  sum+=level;
204  }
205  }
206  block[63]^=sum&1;
207 }
208 
210  int16_t *block, int n, int qscale)
211 {
212  int i, level, qmul, qadd;
213  int nCoeffs;
214 
215  av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
216 
217  qmul = qscale << 1;
218 
219  if (!s->h263_aic) {
220  block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
221  qadd = (qscale - 1) | 1;
222  }else{
223  qadd = 0;
224  }
225  if(s->ac_pred)
226  nCoeffs=63;
227  else
228  nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
229 
230  for(i=1; i<=nCoeffs; i++) {
231  level = block[i];
232  if (level) {
233  if (level < 0) {
234  level = level * qmul - qadd;
235  } else {
236  level = level * qmul + qadd;
237  }
238  block[i] = level;
239  }
240  }
241 }
242 
244  int16_t *block, int n, int qscale)
245 {
246  int i, level, qmul, qadd;
247  int nCoeffs;
248 
249  av_assert2(s->block_last_index[n]>=0);
250 
251  qadd = (qscale - 1) | 1;
252  qmul = qscale << 1;
253 
254  nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
255 
256  for(i=0; i<=nCoeffs; i++) {
257  level = block[i];
258  if (level) {
259  if (level < 0) {
260  level = level * qmul - qadd;
261  } else {
262  level = level * qmul + qadd;
263  }
264  block[i] = level;
265  }
266  }
267 }
268 
269 
270 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
271 {
272  while(h--)
273  memset(dst + h*linesize, 128, 16);
274 }
275 
276 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
277 {
278  while(h--)
279  memset(dst + h*linesize, 128, 8);
280 }
281 
282 /* init common dct for both encoder and decoder */
284 {
285  ff_blockdsp_init(&s->bdsp, s->avctx);
286  ff_h264chroma_init(&s->h264chroma, 8); //for lowres
287  ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
290 
291  if (s->avctx->debug & FF_DEBUG_NOMC) {
292  int i;
293  for (i=0; i<4; i++) {
294  s->hdsp.avg_pixels_tab[0][i] = gray16;
295  s->hdsp.put_pixels_tab[0][i] = gray16;
296  s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
297 
298  s->hdsp.avg_pixels_tab[1][i] = gray8;
299  s->hdsp.put_pixels_tab[1][i] = gray8;
300  s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
301  }
302  }
303 
312 
315 
316  if (ARCH_ALPHA)
318  if (ARCH_ARM)
320  if (ARCH_PPC)
322  if (ARCH_X86)
324  if (ARCH_MIPS)
326 
327  return 0;
328 }
329 
331 {
332  ff_idctdsp_init(&s->idsp, s->avctx);
333 
334  /* load & permutate scantables
335  * note: only wmv uses different ones
336  */
337  if (s->alternate_scan) {
340  } else {
343  }
346 }
347 
348 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
349 {
350  return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
352  s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
353  &s->linesize, &s->uvlinesize);
354 }
355 
357 {
358  int y_size = s->b8_stride * (2 * s->mb_height + 1);
359  int c_size = s->mb_stride * (s->mb_height + 1);
360  int yc_size = y_size + 2 * c_size;
361  int i;
362 
363  if (s->mb_height & 1)
364  yc_size += 2*s->b8_stride + 2*s->mb_stride;
365 
366  s->sc.edge_emu_buffer =
367  s->me.scratchpad =
368  s->me.temp =
369  s->sc.rd_scratchpad =
370  s->sc.b_scratchpad =
371  s->sc.obmc_scratchpad = NULL;
372 
373  if (s->encoding) {
374  FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
375  ME_MAP_SIZE * sizeof(uint32_t), fail)
377  ME_MAP_SIZE * sizeof(uint32_t), fail)
378  if (s->noise_reduction) {
380  2 * 64 * sizeof(int), fail)
381  }
382  }
383  FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
384  s->block = s->blocks[0];
385 
386  for (i = 0; i < 12; i++) {
387  s->pblocks[i] = &s->block[i];
388  }
389  if (s->avctx->codec_tag == AV_RL32("VCR2")) {
390  // exchange uv
391  FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
392  }
393 
394  if (s->out_format == FMT_H263) {
395  /* ac values */
397  yc_size * sizeof(int16_t) * 16, fail);
398  s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
399  s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
400  s->ac_val[2] = s->ac_val[1] + c_size;
401  }
402 
403  return 0;
404 fail:
405  return -1; // free() through ff_mpv_common_end()
406 }
407 
409 {
410  if (!s)
411  return;
412 
414  av_freep(&s->me.scratchpad);
415  s->me.temp =
416  s->sc.rd_scratchpad =
417  s->sc.b_scratchpad =
418  s->sc.obmc_scratchpad = NULL;
419 
420  av_freep(&s->dct_error_sum);
421  av_freep(&s->me.map);
422  av_freep(&s->me.score_map);
423  av_freep(&s->blocks);
424  av_freep(&s->ac_val_base);
425  s->block = NULL;
426 }
427 
429 {
430 #define COPY(a) bak->a = src->a
431  COPY(sc.edge_emu_buffer);
432  COPY(me.scratchpad);
433  COPY(me.temp);
434  COPY(sc.rd_scratchpad);
435  COPY(sc.b_scratchpad);
436  COPY(sc.obmc_scratchpad);
437  COPY(me.map);
438  COPY(me.score_map);
439  COPY(blocks);
440  COPY(block);
441  COPY(start_mb_y);
442  COPY(end_mb_y);
443  COPY(me.map_generation);
444  COPY(pb);
445  COPY(dct_error_sum);
446  COPY(dct_count[0]);
447  COPY(dct_count[1]);
448  COPY(ac_val_base);
449  COPY(ac_val[0]);
450  COPY(ac_val[1]);
451  COPY(ac_val[2]);
452 #undef COPY
453 }
454 
456 {
457  MpegEncContext bak;
458  int i, ret;
459  // FIXME copy only needed parts
460  // START_TIMER
461  backup_duplicate_context(&bak, dst);
462  memcpy(dst, src, sizeof(MpegEncContext));
463  backup_duplicate_context(dst, &bak);
464  for (i = 0; i < 12; i++) {
465  dst->pblocks[i] = &dst->block[i];
466  }
467  if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
468  // exchange uv
469  FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
470  }
471  if (!dst->sc.edge_emu_buffer &&
472  (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
473  &dst->sc, dst->linesize)) < 0) {
474  av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
475  "scratch buffers.\n");
476  return ret;
477  }
478  // STOP_TIMER("update_duplicate_context")
479  // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
480  return 0;
481 }
482 
484  const AVCodecContext *src)
485 {
486  int i, ret;
487  MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
488 
489  if (dst == src)
490  return 0;
491 
492  av_assert0(s != s1);
493 
494  // FIXME can parameters change on I-frames?
495  // in that case dst may need a reinit
496  if (!s->context_initialized) {
497  int err;
498  memcpy(s, s1, sizeof(MpegEncContext));
499 
500  s->avctx = dst;
501  s->bitstream_buffer = NULL;
503 
504  if (s1->context_initialized){
505 // s->picture_range_start += MAX_PICTURE_COUNT;
506 // s->picture_range_end += MAX_PICTURE_COUNT;
507  ff_mpv_idct_init(s);
508  if((err = ff_mpv_common_init(s)) < 0){
509  memset(s, 0, sizeof(MpegEncContext));
510  s->avctx = dst;
511  return err;
512  }
513  }
514  }
515 
516  if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
517  s->context_reinit = 0;
518  s->height = s1->height;
519  s->width = s1->width;
520  if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
521  return ret;
522  }
523 
524  s->avctx->coded_height = s1->avctx->coded_height;
525  s->avctx->coded_width = s1->avctx->coded_width;
526  s->avctx->width = s1->avctx->width;
527  s->avctx->height = s1->avctx->height;
528 
529  s->coded_picture_number = s1->coded_picture_number;
530  s->picture_number = s1->picture_number;
531 
532  av_assert0(!s->picture || s->picture != s1->picture);
533  if(s->picture)
534  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
535  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
536  if (s1->picture && s1->picture[i].f->buf[0] &&
537  (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
538  return ret;
539  }
540 
541 #define UPDATE_PICTURE(pic)\
542 do {\
543  ff_mpeg_unref_picture(s->avctx, &s->pic);\
544  if (s1->pic.f && s1->pic.f->buf[0])\
545  ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
546  else\
547  ret = ff_update_picture_tables(&s->pic, &s1->pic);\
548  if (ret < 0)\
549  return ret;\
550 } while (0)
551 
552  UPDATE_PICTURE(current_picture);
554  UPDATE_PICTURE(next_picture);
555 
556 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
557  ((pic && pic >= old_ctx->picture && \
558  pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
559  &new_ctx->picture[pic - old_ctx->picture] : NULL)
560 
561  s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
562  s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
563  s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
564 
565  // Error/bug resilience
566  s->next_p_frame_damaged = s1->next_p_frame_damaged;
567  s->workaround_bugs = s1->workaround_bugs;
568  s->padding_bug_score = s1->padding_bug_score;
569 
570  // MPEG-4 timing info
571  memcpy(&s->last_time_base, &s1->last_time_base,
572  (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
573  (char *) &s1->last_time_base);
574 
575  // B-frame info
576  s->max_b_frames = s1->max_b_frames;
577  s->low_delay = s1->low_delay;
578  s->droppable = s1->droppable;
579 
580  // DivX handling (doesn't work)
581  s->divx_packed = s1->divx_packed;
582 
583  if (s1->bitstream_buffer) {
584  if (s1->bitstream_buffer_size +
588  s1->allocated_bitstream_buffer_size);
589  if (!s->bitstream_buffer) {
590  s->bitstream_buffer_size = 0;
591  return AVERROR(ENOMEM);
592  }
593  }
594  s->bitstream_buffer_size = s1->bitstream_buffer_size;
595  memcpy(s->bitstream_buffer, s1->bitstream_buffer,
596  s1->bitstream_buffer_size);
597  memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
599  }
600 
601  // linesize-dependent scratch buffer allocation
602  if (!s->sc.edge_emu_buffer)
603  if (s1->linesize) {
604  if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
605  &s->sc, s1->linesize) < 0) {
606  av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
607  "scratch buffers.\n");
608  return AVERROR(ENOMEM);
609  }
610  } else {
611  av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
612  "be allocated due to unknown size.\n");
613  }
614 
615  // MPEG-2/interlacing info
616  memcpy(&s->progressive_sequence, &s1->progressive_sequence,
617  (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
618 
619  if (!s1->first_field) {
620  s->last_pict_type = s1->pict_type;
621  if (s1->current_picture_ptr)
622  s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
623  }
624 
625  return 0;
626 }
627 
628 /**
629  * Set the given MpegEncContext to common defaults
630  * (same for encoding and decoding).
631  * The changed fields will not depend upon the
632  * prior state of the MpegEncContext.
633  */
635 {
636  s->y_dc_scale_table =
639  s->progressive_frame = 1;
640  s->progressive_sequence = 1;
642 
643  s->coded_picture_number = 0;
644  s->picture_number = 0;
645 
646  s->f_code = 1;
647  s->b_code = 1;
648 
649  s->slice_context_count = 1;
650 }
651 
652 /**
653  * Set the given MpegEncContext to defaults for decoding.
654  * the changed fields will not depend upon
655  * the prior state of the MpegEncContext.
656  */
658 {
660 }
661 
663 {
664  s->avctx = avctx;
665  s->width = avctx->coded_width;
666  s->height = avctx->coded_height;
667  s->codec_id = avctx->codec->id;
668  s->workaround_bugs = avctx->workaround_bugs;
669 
670  /* convert fourcc to upper case */
671  s->codec_tag = avpriv_toupper4(avctx->codec_tag);
672 }
673 
674 /**
675  * Initialize and allocates MpegEncContext fields dependent on the resolution.
676  */
678 {
679  int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
680 
681  s->mb_width = (s->width + 15) / 16;
682  s->mb_stride = s->mb_width + 1;
683  s->b8_stride = s->mb_width * 2 + 1;
684  mb_array_size = s->mb_height * s->mb_stride;
685  mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
686 
687  /* set default edge pos, will be overridden
688  * in decode_header if needed */
689  s->h_edge_pos = s->mb_width * 16;
690  s->v_edge_pos = s->mb_height * 16;
691 
692  s->mb_num = s->mb_width * s->mb_height;
693 
694  s->block_wrap[0] =
695  s->block_wrap[1] =
696  s->block_wrap[2] =
697  s->block_wrap[3] = s->b8_stride;
698  s->block_wrap[4] =
699  s->block_wrap[5] = s->mb_stride;
700 
701  y_size = s->b8_stride * (2 * s->mb_height + 1);
702  c_size = s->mb_stride * (s->mb_height + 1);
703  yc_size = y_size + 2 * c_size;
704 
705  if (s->mb_height & 1)
706  yc_size += 2*s->b8_stride + 2*s->mb_stride;
707 
708  FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
709  fail); // error resilience code looks cleaner with this
710  for (y = 0; y < s->mb_height; y++)
711  for (x = 0; x < s->mb_width; x++)
712  s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
713 
714  s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
715 
716  if (s->encoding) {
717  /* Allocate MV tables */
718  FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
719  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
720  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
721  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
722  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
723  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
724  s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
730 
731  /* Allocate MB type table */
732  FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
733 
734  FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
735 
737  mb_array_size * sizeof(float), fail);
739  mb_array_size * sizeof(float), fail);
740 
741  }
742 
743  if (s->codec_id == AV_CODEC_ID_MPEG4 ||
745  /* interlaced direct mode decoding tables */
746  for (i = 0; i < 2; i++) {
747  int j, k;
748  for (j = 0; j < 2; j++) {
749  for (k = 0; k < 2; k++) {
751  s->b_field_mv_table_base[i][j][k],
752  mv_table_size * 2 * sizeof(int16_t),
753  fail);
754  s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
755  s->mb_stride + 1;
756  }
757  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
758  FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
759  s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
760  }
761  FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
762  }
763  }
764  if (s->out_format == FMT_H263) {
765  /* cbp values */
766  FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
767  s->coded_block = s->coded_block_base + s->b8_stride + 1;
768 
769  /* cbp, ac_pred, pred_dir */
770  FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
771  FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
772  }
773 
774  if (s->h263_pred || s->h263_plus || !s->encoding) {
775  /* dc values */
776  // MN: we need these for error resilience of intra-frames
777  FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
778  s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
779  s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
780  s->dc_val[2] = s->dc_val[1] + c_size;
781  for (i = 0; i < yc_size; i++)
782  s->dc_val_base[i] = 1024;
783  }
784 
785  /* which mb is an intra block */
786  FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
787  memset(s->mbintra_table, 1, mb_array_size);
788 
789  /* init macroblock skip table */
790  FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
791  // Note the + 1 is for a quicker MPEG-4 slice_end detection
792 
793  return ff_mpeg_er_init(s);
794 fail:
795  return AVERROR(ENOMEM);
796 }
797 
799 {
800  int i, j, k;
801 
802  memset(&s->next_picture, 0, sizeof(s->next_picture));
803  memset(&s->last_picture, 0, sizeof(s->last_picture));
804  memset(&s->current_picture, 0, sizeof(s->current_picture));
805  memset(&s->new_picture, 0, sizeof(s->new_picture));
806 
807  memset(s->thread_context, 0, sizeof(s->thread_context));
808 
809  s->me.map = NULL;
810  s->me.score_map = NULL;
811  s->dct_error_sum = NULL;
812  s->block = NULL;
813  s->blocks = NULL;
814  memset(s->pblocks, 0, sizeof(s->pblocks));
815  s->ac_val_base = NULL;
816  s->ac_val[0] =
817  s->ac_val[1] =
818  s->ac_val[2] =NULL;
819  s->sc.edge_emu_buffer = NULL;
820  s->me.scratchpad = NULL;
821  s->me.temp =
822  s->sc.rd_scratchpad =
823  s->sc.b_scratchpad =
824  s->sc.obmc_scratchpad = NULL;
825 
826 
827  s->bitstream_buffer = NULL;
829  s->picture = NULL;
830  s->mb_type = NULL;
831  s->p_mv_table_base = NULL;
837  s->p_mv_table = NULL;
838  s->b_forw_mv_table = NULL;
839  s->b_back_mv_table = NULL;
842  s->b_direct_mv_table = NULL;
843  for (i = 0; i < 2; i++) {
844  for (j = 0; j < 2; j++) {
845  for (k = 0; k < 2; k++) {
846  s->b_field_mv_table_base[i][j][k] = NULL;
847  s->b_field_mv_table[i][j][k] = NULL;
848  }
849  s->b_field_select_table[i][j] = NULL;
850  s->p_field_mv_table_base[i][j] = NULL;
851  s->p_field_mv_table[i][j] = NULL;
852  }
853  s->p_field_select_table[i] = NULL;
854  }
855 
856  s->dc_val_base = NULL;
857  s->coded_block_base = NULL;
858  s->mbintra_table = NULL;
859  s->cbp_table = NULL;
860  s->pred_dir_table = NULL;
861 
862  s->mbskip_table = NULL;
863 
865  s->er.er_temp_buffer = NULL;
866  s->mb_index2xy = NULL;
867  s->lambda_table = NULL;
868 
869  s->cplx_tab = NULL;
870  s->bits_tab = NULL;
871 }
872 
873 /**
874  * init common structure for both encoder and decoder.
875  * this assumes that some variables like width/height are already set
876  */
878 {
879  int i;
880  int nb_slices = (HAVE_THREADS &&
882  s->avctx->thread_count : 1;
883 
884  clear_context(s);
885 
886  if (s->encoding && s->avctx->slices)
887  nb_slices = s->avctx->slices;
888 
890  s->mb_height = (s->height + 31) / 32 * 2;
891  else
892  s->mb_height = (s->height + 15) / 16;
893 
894  if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
896  "decoding to AV_PIX_FMT_NONE is not supported.\n");
897  return -1;
898  }
899 
900  if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
901  int max_slices;
902  if (s->mb_height)
903  max_slices = FFMIN(MAX_THREADS, s->mb_height);
904  else
905  max_slices = MAX_THREADS;
906  av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
907  " reducing to %d\n", nb_slices, max_slices);
908  nb_slices = max_slices;
909  }
910 
911  if ((s->width || s->height) &&
912  av_image_check_size(s->width, s->height, 0, s->avctx))
913  return -1;
914 
915  dct_init(s);
916 
917  /* set chroma shifts */
919  &s->chroma_x_shift,
920  &s->chroma_y_shift);
921 
922 
924  MAX_PICTURE_COUNT * sizeof(Picture), fail);
925  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
926  s->picture[i].f = av_frame_alloc();
927  if (!s->picture[i].f)
928  goto fail;
929  }
931  if (!s->next_picture.f)
932  goto fail;
934  if (!s->last_picture.f)
935  goto fail;
937  if (!s->current_picture.f)
938  goto fail;
940  if (!s->new_picture.f)
941  goto fail;
942 
943  if (init_context_frame(s))
944  goto fail;
945 
946  s->parse_context.state = -1;
947 
948  s->context_initialized = 1;
949  memset(s->thread_context, 0, sizeof(s->thread_context));
950  s->thread_context[0] = s;
951 
952 // if (s->width && s->height) {
953  if (nb_slices > 1) {
954  for (i = 0; i < nb_slices; i++) {
955  if (i) {
956  s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
957  if (!s->thread_context[i])
958  goto fail;
959  }
960  if (init_duplicate_context(s->thread_context[i]) < 0)
961  goto fail;
962  s->thread_context[i]->start_mb_y =
963  (s->mb_height * (i) + nb_slices / 2) / nb_slices;
964  s->thread_context[i]->end_mb_y =
965  (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
966  }
967  } else {
968  if (init_duplicate_context(s) < 0)
969  goto fail;
970  s->start_mb_y = 0;
971  s->end_mb_y = s->mb_height;
972  }
973  s->slice_context_count = nb_slices;
974 // }
975 
976  return 0;
977  fail:
979  return -1;
980 }
981 
982 /**
983  * Frees and resets MpegEncContext fields depending on the resolution.
984  * Is used during resolution changes to avoid a full reinitialization of the
985  * codec.
986  */
988 {
989  int i, j, k;
990 
991  av_freep(&s->mb_type);
998  s->p_mv_table = NULL;
999  s->b_forw_mv_table = NULL;
1000  s->b_back_mv_table = NULL;
1003  s->b_direct_mv_table = NULL;
1004  for (i = 0; i < 2; i++) {
1005  for (j = 0; j < 2; j++) {
1006  for (k = 0; k < 2; k++) {
1007  av_freep(&s->b_field_mv_table_base[i][j][k]);
1008  s->b_field_mv_table[i][j][k] = NULL;
1009  }
1010  av_freep(&s->b_field_select_table[i][j]);
1011  av_freep(&s->p_field_mv_table_base[i][j]);
1012  s->p_field_mv_table[i][j] = NULL;
1013  }
1015  }
1016 
1017  av_freep(&s->dc_val_base);
1019  av_freep(&s->mbintra_table);
1020  av_freep(&s->cbp_table);
1021  av_freep(&s->pred_dir_table);
1022 
1023  av_freep(&s->mbskip_table);
1024 
1026  av_freep(&s->er.er_temp_buffer);
1027  av_freep(&s->mb_index2xy);
1028  av_freep(&s->lambda_table);
1029 
1030  av_freep(&s->cplx_tab);
1031  av_freep(&s->bits_tab);
1032 
1033  s->linesize = s->uvlinesize = 0;
1034 }
1035 
1037 {
1038  int i, err = 0;
1039 
1040  if (!s->context_initialized)
1041  return AVERROR(EINVAL);
1042 
1043  if (s->slice_context_count > 1) {
1044  for (i = 0; i < s->slice_context_count; i++) {
1046  }
1047  for (i = 1; i < s->slice_context_count; i++) {
1048  av_freep(&s->thread_context[i]);
1049  }
1050  } else
1052 
1053  free_context_frame(s);
1054 
1055  if (s->picture)
1056  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1057  s->picture[i].needs_realloc = 1;
1058  }
1059 
1060  s->last_picture_ptr =
1061  s->next_picture_ptr =
1063 
1064  // init
1066  s->mb_height = (s->height + 31) / 32 * 2;
1067  else
1068  s->mb_height = (s->height + 15) / 16;
1069 
1070  if ((s->width || s->height) &&
1071  (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1072  goto fail;
1073 
1074  /* set chroma shifts */
1076  &s->chroma_x_shift,
1077  &s->chroma_y_shift);
1078  if (err < 0)
1079  return err;
1080 
1081  if ((err = init_context_frame(s)))
1082  goto fail;
1083 
1084  memset(s->thread_context, 0, sizeof(s->thread_context));
1085  s->thread_context[0] = s;
1086 
1087  if (s->width && s->height) {
1088  int nb_slices = s->slice_context_count;
1089  if (nb_slices > 1) {
1090  for (i = 0; i < nb_slices; i++) {
1091  if (i) {
1092  s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1093  if (!s->thread_context[i]) {
1094  err = AVERROR(ENOMEM);
1095  goto fail;
1096  }
1097  }
1098  if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1099  goto fail;
1100  s->thread_context[i]->start_mb_y =
1101  (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1102  s->thread_context[i]->end_mb_y =
1103  (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1104  }
1105  } else {
1106  err = init_duplicate_context(s);
1107  if (err < 0)
1108  goto fail;
1109  s->start_mb_y = 0;
1110  s->end_mb_y = s->mb_height;
1111  }
1112  s->slice_context_count = nb_slices;
1113  }
1114 
1115  return 0;
1116  fail:
1117  ff_mpv_common_end(s);
1118  return err;
1119 }
1120 
1121 /* init common structure for both encoder and decoder */
1123 {
1124  int i;
1125 
1126  if (!s)
1127  return ;
1128 
1129  if (s->slice_context_count > 1) {
1130  for (i = 0; i < s->slice_context_count; i++) {
1132  }
1133  for (i = 1; i < s->slice_context_count; i++) {
1134  av_freep(&s->thread_context[i]);
1135  }
1136  s->slice_context_count = 1;
1137  } else free_duplicate_context(s);
1138 
1140  s->parse_context.buffer_size = 0;
1141 
1144 
1145  if (s->picture) {
1146  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1148  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1149  av_frame_free(&s->picture[i].f);
1150  }
1151  }
1152  av_freep(&s->picture);
1165 
1166  free_context_frame(s);
1167 
1168  s->context_initialized = 0;
1169  s->last_picture_ptr =
1170  s->next_picture_ptr =
1172  s->linesize = s->uvlinesize = 0;
1173 }
1174 
1175 
1176 static void gray_frame(AVFrame *frame)
1177 {
1178  int i, h_chroma_shift, v_chroma_shift;
1179 
1180  av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1181 
1182  for(i=0; i<frame->height; i++)
1183  memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1184  for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1185  memset(frame->data[1] + frame->linesize[1]*i,
1186  0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1187  memset(frame->data[2] + frame->linesize[2]*i,
1188  0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1189  }
1190 }
1191 
1192 /**
1193  * generic function called after decoding
1194  * the header and before a frame is decoded.
1195  */
1197 {
1198  int i, ret;
1199  Picture *pic;
1200  s->mb_skipped = 0;
1201 
1202  if (!ff_thread_can_start_frame(avctx)) {
1203  av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1204  return -1;
1205  }
1206 
1207  /* mark & release old frames */
1208  if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1210  s->last_picture_ptr->f->buf[0]) {
1212  }
1213 
1214  /* release forgotten pictures */
1215  /* if (MPEG-124 / H.263) */
1216  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1217  if (&s->picture[i] != s->last_picture_ptr &&
1218  &s->picture[i] != s->next_picture_ptr &&
1219  s->picture[i].reference && !s->picture[i].needs_realloc) {
1220  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1221  }
1222  }
1223 
1227 
1228  /* release non reference frames */
1229  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1230  if (!s->picture[i].reference)
1231  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1232  }
1233 
1234  if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1235  // we already have an unused image
1236  // (maybe it was set before reading the header)
1237  pic = s->current_picture_ptr;
1238  } else {
1239  i = ff_find_unused_picture(s->avctx, s->picture, 0);
1240  if (i < 0) {
1241  av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1242  return i;
1243  }
1244  pic = &s->picture[i];
1245  }
1246 
1247  pic->reference = 0;
1248  if (!s->droppable) {
1249  if (s->pict_type != AV_PICTURE_TYPE_B)
1250  pic->reference = 3;
1251  }
1252 
1254 
1255  if (alloc_picture(s, pic, 0) < 0)
1256  return -1;
1257 
1258  s->current_picture_ptr = pic;
1259  // FIXME use only the vars from current_pic
1261  if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1263  if (s->picture_structure != PICT_FRAME)
1266  }
1270 
1272  // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1273  // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1275 
1276  if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1277  s->current_picture_ptr)) < 0)
1278  return ret;
1279 
1280  if (s->pict_type != AV_PICTURE_TYPE_B) {
1282  if (!s->droppable)
1284  }
1285  ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1287  s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1288  s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1290  s->pict_type, s->droppable);
1291 
1292  if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1293  (s->pict_type != AV_PICTURE_TYPE_I)) {
1294  int h_chroma_shift, v_chroma_shift;
1296  &h_chroma_shift, &v_chroma_shift);
1298  av_log(avctx, AV_LOG_DEBUG,
1299  "allocating dummy last picture for B frame\n");
1300  else if (s->pict_type != AV_PICTURE_TYPE_I)
1301  av_log(avctx, AV_LOG_ERROR,
1302  "warning: first frame is no keyframe\n");
1303 
1304  /* Allocate a dummy frame */
1305  i = ff_find_unused_picture(s->avctx, s->picture, 0);
1306  if (i < 0) {
1307  av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1308  return i;
1309  }
1310  s->last_picture_ptr = &s->picture[i];
1311 
1312  s->last_picture_ptr->reference = 3;
1313  s->last_picture_ptr->f->key_frame = 0;
1315 
1316  if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1317  s->last_picture_ptr = NULL;
1318  return -1;
1319  }
1320 
1321  if (!avctx->hwaccel
1322 #if FF_API_CAP_VDPAU
1324 #endif
1325  ) {
1326  for(i=0; i<avctx->height; i++)
1327  memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1328  0x80, avctx->width);
1329  if (s->last_picture_ptr->f->data[2]) {
1330  for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1331  memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1332  0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1333  memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1334  0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1335  }
1336  }
1337 
1339  for(i=0; i<avctx->height; i++)
1340  memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1341  }
1342  }
1343 
1344  ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1345  ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1346  }
1347  if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1348  s->pict_type == AV_PICTURE_TYPE_B) {
1349  /* Allocate a dummy frame */
1350  i = ff_find_unused_picture(s->avctx, s->picture, 0);
1351  if (i < 0) {
1352  av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1353  return i;
1354  }
1355  s->next_picture_ptr = &s->picture[i];
1356 
1357  s->next_picture_ptr->reference = 3;
1358  s->next_picture_ptr->f->key_frame = 0;
1360 
1361  if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1362  s->next_picture_ptr = NULL;
1363  return -1;
1364  }
1365  ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1366  ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1367  }
1368 
1369 #if 0 // BUFREF-FIXME
1370  memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1371  memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1372 #endif
1373  if (s->last_picture_ptr) {
1374  if (s->last_picture_ptr->f->buf[0] &&
1375  (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1376  s->last_picture_ptr)) < 0)
1377  return ret;
1378  }
1379  if (s->next_picture_ptr) {
1380  if (s->next_picture_ptr->f->buf[0] &&
1381  (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1382  s->next_picture_ptr)) < 0)
1383  return ret;
1384  }
1385 
1387  s->last_picture_ptr->f->buf[0]));
1388 
1389  if (s->picture_structure!= PICT_FRAME) {
1390  int i;
1391  for (i = 0; i < 4; i++) {
1393  s->current_picture.f->data[i] +=
1394  s->current_picture.f->linesize[i];
1395  }
1396  s->current_picture.f->linesize[i] *= 2;
1397  s->last_picture.f->linesize[i] *= 2;
1398  s->next_picture.f->linesize[i] *= 2;
1399  }
1400  }
1401 
1402  /* set dequantizer, we can't do it during init as
1403  * it might change for MPEG-4 and we can't do it in the header
1404  * decode as init is not called for MPEG-4 there yet */
1405  if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1408  } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1411  } else {
1414  }
1415 
1416  if (s->avctx->debug & FF_DEBUG_NOMC) {
1418  }
1419 
1420  return 0;
1421 }
1422 
1423 /* called after a frame has been decoded. */
1425 {
1426  emms_c();
1427 
1428  if (s->current_picture.reference)
1430 }
1431 
1432 
1433 #if FF_API_VISMV
1434 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
1435 {
1436  if(*sx > *ex)
1437  return clip_line(ex, ey, sx, sy, maxx);
1438 
1439  if (*sx < 0) {
1440  if (*ex < 0)
1441  return 1;
1442  *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
1443  *sx = 0;
1444  }
1445 
1446  if (*ex > maxx) {
1447  if (*sx > maxx)
1448  return 1;
1449  *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
1450  *ex = maxx;
1451  }
1452  return 0;
1453 }
1454 
1455 
1456 /**
1457  * Draw a line from (ex, ey) -> (sx, sy).
1458  * @param w width of the image
1459  * @param h height of the image
1460  * @param stride stride/linesize of the image
1461  * @param color color of the arrow
1462  */
1463 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1464  int w, int h, int stride, int color)
1465 {
1466  int x, y, fr, f;
1467 
1468  if (clip_line(&sx, &sy, &ex, &ey, w - 1))
1469  return;
1470  if (clip_line(&sy, &sx, &ey, &ex, h - 1))
1471  return;
1472 
1473  sx = av_clip(sx, 0, w - 1);
1474  sy = av_clip(sy, 0, h - 1);
1475  ex = av_clip(ex, 0, w - 1);
1476  ey = av_clip(ey, 0, h - 1);
1477 
1478  buf[sy * stride + sx] += color;
1479 
1480  if (FFABS(ex - sx) > FFABS(ey - sy)) {
1481  if (sx > ex) {
1482  FFSWAP(int, sx, ex);
1483  FFSWAP(int, sy, ey);
1484  }
1485  buf += sx + sy * stride;
1486  ex -= sx;
1487  f = ((ey - sy) << 16) / ex;
1488  for (x = 0; x <= ex; x++) {
1489  y = (x * f) >> 16;
1490  fr = (x * f) & 0xFFFF;
1491  buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1492  if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1493  }
1494  } else {
1495  if (sy > ey) {
1496  FFSWAP(int, sx, ex);
1497  FFSWAP(int, sy, ey);
1498  }
1499  buf += sx + sy * stride;
1500  ey -= sy;
1501  if (ey)
1502  f = ((ex - sx) << 16) / ey;
1503  else
1504  f = 0;
1505  for(y= 0; y <= ey; y++){
1506  x = (y*f) >> 16;
1507  fr = (y*f) & 0xFFFF;
1508  buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1509  if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1510  }
1511  }
1512 }
1513 
1514 /**
1515  * Draw an arrow from (ex, ey) -> (sx, sy).
1516  * @param w width of the image
1517  * @param h height of the image
1518  * @param stride stride/linesize of the image
1519  * @param color color of the arrow
1520  */
1521 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1522  int ey, int w, int h, int stride, int color, int tail, int direction)
1523 {
1524  int dx,dy;
1525 
1526  if (direction) {
1527  FFSWAP(int, sx, ex);
1528  FFSWAP(int, sy, ey);
1529  }
1530 
1531  sx = av_clip(sx, -100, w + 100);
1532  sy = av_clip(sy, -100, h + 100);
1533  ex = av_clip(ex, -100, w + 100);
1534  ey = av_clip(ey, -100, h + 100);
1535 
1536  dx = ex - sx;
1537  dy = ey - sy;
1538 
1539  if (dx * dx + dy * dy > 3 * 3) {
1540  int rx = dx + dy;
1541  int ry = -dx + dy;
1542  int length = ff_sqrt((rx * rx + ry * ry) << 8);
1543 
1544  // FIXME subpixel accuracy
1545  rx = ROUNDED_DIV(rx * 3 << 4, length);
1546  ry = ROUNDED_DIV(ry * 3 << 4, length);
1547 
1548  if (tail) {
1549  rx = -rx;
1550  ry = -ry;
1551  }
1552 
1553  draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1554  draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1555  }
1556  draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1557 }
1558 #endif
1559 
1560 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
1561  int dst_x, int dst_y,
1562  int motion_x, int motion_y, int motion_scale,
1563  int direction)
1564 {
1565  mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
1566  mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
1567  mb->motion_x = motion_x;
1568  mb->motion_y = motion_y;
1569  mb->motion_scale = motion_scale;
1570  mb->dst_x = dst_x;
1571  mb->dst_y = dst_y;
1572  mb->src_x = dst_x + motion_x / motion_scale;
1573  mb->src_y = dst_y + motion_y / motion_scale;
1574  mb->source = direction ? 1 : -1;
1575  mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
1576  return 1;
1577 }
1578 
1579 /**
1580  * Print debugging info for the given picture.
1581  */
1582 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1583  uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1584  int *low_delay,
1585  int mb_width, int mb_height, int mb_stride, int quarter_sample)
1586 {
1587  if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
1588  const int shift = 1 + quarter_sample;
1589  const int scale = 1 << shift;
1590  const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1591  const int mv_stride = (mb_width << mv_sample_log2) +
1592  (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1593  int mb_x, mb_y, mbcount = 0;
1594 
1595  /* size is width * height * 2 * 4 where 2 is for directions and 4 is
1596  * for the maximum number of MB (4 MB in case of IS_8x8) */
1597  AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
1598  if (!mvs)
1599  return;
1600 
1601  for (mb_y = 0; mb_y < mb_height; mb_y++) {
1602  for (mb_x = 0; mb_x < mb_width; mb_x++) {
1603  int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
1604  for (direction = 0; direction < 2; direction++) {
1605  if (!USES_LIST(mb_type, direction))
1606  continue;
1607  if (IS_8X8(mb_type)) {
1608  for (i = 0; i < 4; i++) {
1609  int sx = mb_x * 16 + 4 + 8 * (i & 1);
1610  int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1611  int xy = (mb_x * 2 + (i & 1) +
1612  (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1613  int mx = motion_val[direction][xy][0];
1614  int my = motion_val[direction][xy][1];
1615  mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1616  }
1617  } else if (IS_16X8(mb_type)) {
1618  for (i = 0; i < 2; i++) {
1619  int sx = mb_x * 16 + 8;
1620  int sy = mb_y * 16 + 4 + 8 * i;
1621  int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1622  int mx = motion_val[direction][xy][0];
1623  int my = motion_val[direction][xy][1];
1624 
1625  if (IS_INTERLACED(mb_type))
1626  my *= 2;
1627 
1628  mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1629  }
1630  } else if (IS_8X16(mb_type)) {
1631  for (i = 0; i < 2; i++) {
1632  int sx = mb_x * 16 + 4 + 8 * i;
1633  int sy = mb_y * 16 + 8;
1634  int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1635  int mx = motion_val[direction][xy][0];
1636  int my = motion_val[direction][xy][1];
1637 
1638  if (IS_INTERLACED(mb_type))
1639  my *= 2;
1640 
1641  mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1642  }
1643  } else {
1644  int sx = mb_x * 16 + 8;
1645  int sy = mb_y * 16 + 8;
1646  int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
1647  int mx = motion_val[direction][xy][0];
1648  int my = motion_val[direction][xy][1];
1649  mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1650  }
1651  }
1652  }
1653  }
1654 
1655  if (mbcount) {
1656  AVFrameSideData *sd;
1657 
1658  av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
1660  if (!sd) {
1661  av_freep(&mvs);
1662  return;
1663  }
1664  memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
1665  }
1666 
1667  av_freep(&mvs);
1668  }
1669 
1670  /* TODO: export all the following to make them accessible for users (and filters) */
1671  if (avctx->hwaccel || !mbtype_table
1672 #if FF_API_CAP_VDPAU
1674 #endif
1675  )
1676  return;
1677 
1678 
1679  if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1680  int x,y;
1681 
1682  av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1684  for (y = 0; y < mb_height; y++) {
1685  for (x = 0; x < mb_width; x++) {
1686  if (avctx->debug & FF_DEBUG_SKIP) {
1687  int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
1688  if (count > 9)
1689  count = 9;
1690  av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1691  }
1692  if (avctx->debug & FF_DEBUG_QP) {
1693  av_log(avctx, AV_LOG_DEBUG, "%2d",
1694  qscale_table[x + y * mb_stride]);
1695  }
1696  if (avctx->debug & FF_DEBUG_MB_TYPE) {
1697  int mb_type = mbtype_table[x + y * mb_stride];
1698  // Type & MV direction
1699  if (IS_PCM(mb_type))
1700  av_log(avctx, AV_LOG_DEBUG, "P");
1701  else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1702  av_log(avctx, AV_LOG_DEBUG, "A");
1703  else if (IS_INTRA4x4(mb_type))
1704  av_log(avctx, AV_LOG_DEBUG, "i");
1705  else if (IS_INTRA16x16(mb_type))
1706  av_log(avctx, AV_LOG_DEBUG, "I");
1707  else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1708  av_log(avctx, AV_LOG_DEBUG, "d");
1709  else if (IS_DIRECT(mb_type))
1710  av_log(avctx, AV_LOG_DEBUG, "D");
1711  else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1712  av_log(avctx, AV_LOG_DEBUG, "g");
1713  else if (IS_GMC(mb_type))
1714  av_log(avctx, AV_LOG_DEBUG, "G");
1715  else if (IS_SKIP(mb_type))
1716  av_log(avctx, AV_LOG_DEBUG, "S");
1717  else if (!USES_LIST(mb_type, 1))
1718  av_log(avctx, AV_LOG_DEBUG, ">");
1719  else if (!USES_LIST(mb_type, 0))
1720  av_log(avctx, AV_LOG_DEBUG, "<");
1721  else {
1722  av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1723  av_log(avctx, AV_LOG_DEBUG, "X");
1724  }
1725 
1726  // segmentation
1727  if (IS_8X8(mb_type))
1728  av_log(avctx, AV_LOG_DEBUG, "+");
1729  else if (IS_16X8(mb_type))
1730  av_log(avctx, AV_LOG_DEBUG, "-");
1731  else if (IS_8X16(mb_type))
1732  av_log(avctx, AV_LOG_DEBUG, "|");
1733  else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1734  av_log(avctx, AV_LOG_DEBUG, " ");
1735  else
1736  av_log(avctx, AV_LOG_DEBUG, "?");
1737 
1738 
1739  if (IS_INTERLACED(mb_type))
1740  av_log(avctx, AV_LOG_DEBUG, "=");
1741  else
1742  av_log(avctx, AV_LOG_DEBUG, " ");
1743  }
1744  }
1745  av_log(avctx, AV_LOG_DEBUG, "\n");
1746  }
1747  }
1748 
1749 #if FF_API_DEBUG_MV
1750  if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1751  (avctx->debug_mv)) {
1752  int mb_y;
1753  int i;
1754  int h_chroma_shift, v_chroma_shift, block_height;
1755 #if FF_API_VISMV
1756  const int shift = 1 + quarter_sample;
1757  uint8_t *ptr;
1758  const int width = avctx->width;
1759  const int height = avctx->height;
1760 #endif
1761  const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1762  const int mv_stride = (mb_width << mv_sample_log2) +
1763  (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1764 
1765  if (low_delay)
1766  *low_delay = 0; // needed to see the vectors without trashing the buffers
1767 
1768  avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1769 
1770  av_frame_make_writable(pict);
1771 
1772  pict->opaque = NULL;
1773 #if FF_API_VISMV
1774  ptr = pict->data[0];
1775 #endif
1776  block_height = 16 >> v_chroma_shift;
1777 
1778  for (mb_y = 0; mb_y < mb_height; mb_y++) {
1779  int mb_x;
1780  for (mb_x = 0; mb_x < mb_width; mb_x++) {
1781  const int mb_index = mb_x + mb_y * mb_stride;
1782 #if FF_API_VISMV
1783  if ((avctx->debug_mv) && motion_val[0]) {
1784  int type;
1785  for (type = 0; type < 3; type++) {
1786  int direction = 0;
1787  switch (type) {
1788  case 0:
1789  if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
1790  (pict->pict_type!= AV_PICTURE_TYPE_P))
1791  continue;
1792  direction = 0;
1793  break;
1794  case 1:
1795  if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
1796  (pict->pict_type!= AV_PICTURE_TYPE_B))
1797  continue;
1798  direction = 0;
1799  break;
1800  case 2:
1801  if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
1802  (pict->pict_type!= AV_PICTURE_TYPE_B))
1803  continue;
1804  direction = 1;
1805  break;
1806  }
1807  if (!USES_LIST(mbtype_table[mb_index], direction))
1808  continue;
1809 
1810  if (IS_8X8(mbtype_table[mb_index])) {
1811  int i;
1812  for (i = 0; i < 4; i++) {
1813  int sx = mb_x * 16 + 4 + 8 * (i & 1);
1814  int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1815  int xy = (mb_x * 2 + (i & 1) +
1816  (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1817  int mx = (motion_val[direction][xy][0] >> shift) + sx;
1818  int my = (motion_val[direction][xy][1] >> shift) + sy;
1819  draw_arrow(ptr, sx, sy, mx, my, width,
1820  height, pict->linesize[0], 100, 0, direction);
1821  }
1822  } else if (IS_16X8(mbtype_table[mb_index])) {
1823  int i;
1824  for (i = 0; i < 2; i++) {
1825  int sx = mb_x * 16 + 8;
1826  int sy = mb_y * 16 + 4 + 8 * i;
1827  int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1828  int mx = (motion_val[direction][xy][0] >> shift);
1829  int my = (motion_val[direction][xy][1] >> shift);
1830 
1831  if (IS_INTERLACED(mbtype_table[mb_index]))
1832  my *= 2;
1833 
1834  draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1835  height, pict->linesize[0], 100, 0, direction);
1836  }
1837  } else if (IS_8X16(mbtype_table[mb_index])) {
1838  int i;
1839  for (i = 0; i < 2; i++) {
1840  int sx = mb_x * 16 + 4 + 8 * i;
1841  int sy = mb_y * 16 + 8;
1842  int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1843  int mx = motion_val[direction][xy][0] >> shift;
1844  int my = motion_val[direction][xy][1] >> shift;
1845 
1846  if (IS_INTERLACED(mbtype_table[mb_index]))
1847  my *= 2;
1848 
1849  draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1850  height, pict->linesize[0], 100, 0, direction);
1851  }
1852  } else {
1853  int sx= mb_x * 16 + 8;
1854  int sy= mb_y * 16 + 8;
1855  int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
1856  int mx= (motion_val[direction][xy][0]>>shift) + sx;
1857  int my= (motion_val[direction][xy][1]>>shift) + sy;
1858  draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
1859  }
1860  }
1861  }
1862 #endif
1863  if ((avctx->debug & FF_DEBUG_VIS_QP)) {
1864  uint64_t c = (qscale_table[mb_index] * 128 / 31) *
1865  0x0101010101010101ULL;
1866  int y;
1867  for (y = 0; y < block_height; y++) {
1868  *(uint64_t *)(pict->data[1] + 8 * mb_x +
1869  (block_height * mb_y + y) *
1870  pict->linesize[1]) = c;
1871  *(uint64_t *)(pict->data[2] + 8 * mb_x +
1872  (block_height * mb_y + y) *
1873  pict->linesize[2]) = c;
1874  }
1875  }
1876  if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
1877  motion_val[0]) {
1878  int mb_type = mbtype_table[mb_index];
1879  uint64_t u,v;
1880  int y;
1881 #define COLOR(theta, r) \
1882  u = (int)(128 + r * cos(theta * M_PI / 180)); \
1883  v = (int)(128 + r * sin(theta * M_PI / 180));
1884 
1885 
1886  u = v = 128;
1887  if (IS_PCM(mb_type)) {
1888  COLOR(120, 48)
1889  } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
1890  IS_INTRA16x16(mb_type)) {
1891  COLOR(30, 48)
1892  } else if (IS_INTRA4x4(mb_type)) {
1893  COLOR(90, 48)
1894  } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
1895  // COLOR(120, 48)
1896  } else if (IS_DIRECT(mb_type)) {
1897  COLOR(150, 48)
1898  } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
1899  COLOR(170, 48)
1900  } else if (IS_GMC(mb_type)) {
1901  COLOR(190, 48)
1902  } else if (IS_SKIP(mb_type)) {
1903  // COLOR(180, 48)
1904  } else if (!USES_LIST(mb_type, 1)) {
1905  COLOR(240, 48)
1906  } else if (!USES_LIST(mb_type, 0)) {
1907  COLOR(0, 48)
1908  } else {
1909  av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1910  COLOR(300,48)
1911  }
1912 
1913  u *= 0x0101010101010101ULL;
1914  v *= 0x0101010101010101ULL;
1915  for (y = 0; y < block_height; y++) {
1916  *(uint64_t *)(pict->data[1] + 8 * mb_x +
1917  (block_height * mb_y + y) * pict->linesize[1]) = u;
1918  *(uint64_t *)(pict->data[2] + 8 * mb_x +
1919  (block_height * mb_y + y) * pict->linesize[2]) = v;
1920  }
1921 
1922  // segmentation
1923  if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
1924  *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
1925  (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1926  *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
1927  (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1928  }
1929  if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
1930  for (y = 0; y < 16; y++)
1931  pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
1932  pict->linesize[0]] ^= 0x80;
1933  }
1934  if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
1935  int dm = 1 << (mv_sample_log2 - 2);
1936  for (i = 0; i < 4; i++) {
1937  int sx = mb_x * 16 + 8 * (i & 1);
1938  int sy = mb_y * 16 + 8 * (i >> 1);
1939  int xy = (mb_x * 2 + (i & 1) +
1940  (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1941  // FIXME bidir
1942  int32_t *mv = (int32_t *) &motion_val[0][xy];
1943  if (mv[0] != mv[dm] ||
1944  mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
1945  for (y = 0; y < 8; y++)
1946  pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
1947  if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
1948  *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
1949  pict->linesize[0]) ^= 0x8080808080808080ULL;
1950  }
1951  }
1952 
1953  if (IS_INTERLACED(mb_type) &&
1954  avctx->codec->id == AV_CODEC_ID_H264) {
1955  // hmm
1956  }
1957  }
1958  if (mbskip_table)
1959  mbskip_table[mb_index] = 0;
1960  }
1961  }
1962  }
1963 #endif
1964 }
1965 
1967 {
1969  p->qscale_table, p->motion_val, &s->low_delay,
1970  s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1971 }
1972 
1974 {
1976  int offset = 2*s->mb_stride + 1;
1977  if(!ref)
1978  return AVERROR(ENOMEM);
1979  av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1980  ref->size -= offset;
1981  ref->data += offset;
1982  return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1983 }
1984 
1986  uint8_t *dest, uint8_t *src,
1987  int field_based, int field_select,
1988  int src_x, int src_y,
1989  int width, int height, ptrdiff_t stride,
1990  int h_edge_pos, int v_edge_pos,
1991  int w, int h, h264_chroma_mc_func *pix_op,
1992  int motion_x, int motion_y)
1993 {
1994  const int lowres = s->avctx->lowres;
1995  const int op_index = FFMIN(lowres, 3);
1996  const int s_mask = (2 << lowres) - 1;
1997  int emu = 0;
1998  int sx, sy;
1999 
2000  if (s->quarter_sample) {
2001  motion_x /= 2;
2002  motion_y /= 2;
2003  }
2004 
2005  sx = motion_x & s_mask;
2006  sy = motion_y & s_mask;
2007  src_x += motion_x >> lowres + 1;
2008  src_y += motion_y >> lowres + 1;
2009 
2010  src += src_y * stride + src_x;
2011 
2012  if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2013  (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2015  s->linesize, s->linesize,
2016  w + 1, (h + 1) << field_based,
2017  src_x, src_y << field_based,
2018  h_edge_pos, v_edge_pos);
2019  src = s->sc.edge_emu_buffer;
2020  emu = 1;
2021  }
2022 
2023  sx = (sx << 2) >> lowres;
2024  sy = (sy << 2) >> lowres;
2025  if (field_select)
2026  src += s->linesize;
2027  pix_op[op_index](dest, src, stride, h, sx, sy);
2028  return emu;
2029 }
2030 
2031 /* apply one mpeg motion vector to the three components */
2033  uint8_t *dest_y,
2034  uint8_t *dest_cb,
2035  uint8_t *dest_cr,
2036  int field_based,
2037  int bottom_field,
2038  int field_select,
2039  uint8_t **ref_picture,
2040  h264_chroma_mc_func *pix_op,
2041  int motion_x, int motion_y,
2042  int h, int mb_y)
2043 {
2044  uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2045  int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2046  ptrdiff_t uvlinesize, linesize;
2047  const int lowres = s->avctx->lowres;
2048  const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2049  const int block_s = 8>>lowres;
2050  const int s_mask = (2 << lowres) - 1;
2051  const int h_edge_pos = s->h_edge_pos >> lowres;
2052  const int v_edge_pos = s->v_edge_pos >> lowres;
2053  linesize = s->current_picture.f->linesize[0] << field_based;
2054  uvlinesize = s->current_picture.f->linesize[1] << field_based;
2055 
2056  // FIXME obviously not perfect but qpel will not work in lowres anyway
2057  if (s->quarter_sample) {
2058  motion_x /= 2;
2059  motion_y /= 2;
2060  }
2061 
2062  if(field_based){
2063  motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2064  }
2065 
2066  sx = motion_x & s_mask;
2067  sy = motion_y & s_mask;
2068  src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2069  src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2070 
2071  if (s->out_format == FMT_H263) {
2072  uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2073  uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2074  uvsrc_x = src_x >> 1;
2075  uvsrc_y = src_y >> 1;
2076  } else if (s->out_format == FMT_H261) {
2077  // even chroma mv's are full pel in H261
2078  mx = motion_x / 4;
2079  my = motion_y / 4;
2080  uvsx = (2 * mx) & s_mask;
2081  uvsy = (2 * my) & s_mask;
2082  uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2083  uvsrc_y = mb_y * block_s + (my >> lowres);
2084  } else {
2085  if(s->chroma_y_shift){
2086  mx = motion_x / 2;
2087  my = motion_y / 2;
2088  uvsx = mx & s_mask;
2089  uvsy = my & s_mask;
2090  uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2091  uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2092  } else {
2093  if(s->chroma_x_shift){
2094  //Chroma422
2095  mx = motion_x / 2;
2096  uvsx = mx & s_mask;
2097  uvsy = motion_y & s_mask;
2098  uvsrc_y = src_y;
2099  uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2100  } else {
2101  //Chroma444
2102  uvsx = motion_x & s_mask;
2103  uvsy = motion_y & s_mask;
2104  uvsrc_x = src_x;
2105  uvsrc_y = src_y;
2106  }
2107  }
2108  }
2109 
2110  ptr_y = ref_picture[0] + src_y * linesize + src_x;
2111  ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2112  ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2113 
2114  if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2115  (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2116  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
2117  linesize >> field_based, linesize >> field_based,
2118  17, 17 + field_based,
2119  src_x, src_y << field_based, h_edge_pos,
2120  v_edge_pos);
2121  ptr_y = s->sc.edge_emu_buffer;
2122  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2123  uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
2124  uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
2125  if (s->workaround_bugs & FF_BUG_IEDGE)
2126  vbuf -= s->uvlinesize;
2127  s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2128  uvlinesize >> field_based, uvlinesize >> field_based,
2129  9, 9 + field_based,
2130  uvsrc_x, uvsrc_y << field_based,
2131  h_edge_pos >> 1, v_edge_pos >> 1);
2132  s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2133  uvlinesize >> field_based,uvlinesize >> field_based,
2134  9, 9 + field_based,
2135  uvsrc_x, uvsrc_y << field_based,
2136  h_edge_pos >> 1, v_edge_pos >> 1);
2137  ptr_cb = ubuf;
2138  ptr_cr = vbuf;
2139  }
2140  }
2141 
2142  // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2143  if (bottom_field) {
2144  dest_y += s->linesize;
2145  dest_cb += s->uvlinesize;
2146  dest_cr += s->uvlinesize;
2147  }
2148 
2149  if (field_select) {
2150  ptr_y += s->linesize;
2151  ptr_cb += s->uvlinesize;
2152  ptr_cr += s->uvlinesize;
2153  }
2154 
2155  sx = (sx << 2) >> lowres;
2156  sy = (sy << 2) >> lowres;
2157  pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2158 
2159  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2160  int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2161  uvsx = (uvsx << 2) >> lowres;
2162  uvsy = (uvsy << 2) >> lowres;
2163  if (hc) {
2164  pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2165  pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2166  }
2167  }
2168  // FIXME h261 lowres loop filter
2169 }
2170 
2172  uint8_t *dest_cb, uint8_t *dest_cr,
2173  uint8_t **ref_picture,
2174  h264_chroma_mc_func * pix_op,
2175  int mx, int my)
2176 {
2177  const int lowres = s->avctx->lowres;
2178  const int op_index = FFMIN(lowres, 3);
2179  const int block_s = 8 >> lowres;
2180  const int s_mask = (2 << lowres) - 1;
2181  const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2182  const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2183  int emu = 0, src_x, src_y, sx, sy;
2184  ptrdiff_t offset;
2185  uint8_t *ptr;
2186 
2187  if (s->quarter_sample) {
2188  mx /= 2;
2189  my /= 2;
2190  }
2191 
2192  /* In case of 8X8, we construct a single chroma motion vector
2193  with a special rounding */
2194  mx = ff_h263_round_chroma(mx);
2195  my = ff_h263_round_chroma(my);
2196 
2197  sx = mx & s_mask;
2198  sy = my & s_mask;
2199  src_x = s->mb_x * block_s + (mx >> lowres + 1);
2200  src_y = s->mb_y * block_s + (my >> lowres + 1);
2201 
2202  offset = src_y * s->uvlinesize + src_x;
2203  ptr = ref_picture[1] + offset;
2204  if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2205  (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2207  s->uvlinesize, s->uvlinesize,
2208  9, 9,
2209  src_x, src_y, h_edge_pos, v_edge_pos);
2210  ptr = s->sc.edge_emu_buffer;
2211  emu = 1;
2212  }
2213  sx = (sx << 2) >> lowres;
2214  sy = (sy << 2) >> lowres;
2215  pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2216 
2217  ptr = ref_picture[2] + offset;
2218  if (emu) {
2220  s->uvlinesize, s->uvlinesize,
2221  9, 9,
2222  src_x, src_y, h_edge_pos, v_edge_pos);
2223  ptr = s->sc.edge_emu_buffer;
2224  }
2225  pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2226 }
2227 
2228 /**
2229  * motion compensation of a single macroblock
2230  * @param s context
2231  * @param dest_y luma destination pointer
2232  * @param dest_cb chroma cb/u destination pointer
2233  * @param dest_cr chroma cr/v destination pointer
2234  * @param dir direction (0->forward, 1->backward)
2235  * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2236  * @param pix_op halfpel motion compensation function (average or put normally)
2237  * the motion vectors are taken from s->mv and the MV type from s->mv_type
2238  */
2239 static inline void MPV_motion_lowres(MpegEncContext *s,
2240  uint8_t *dest_y, uint8_t *dest_cb,
2241  uint8_t *dest_cr,
2242  int dir, uint8_t **ref_picture,
2243  h264_chroma_mc_func *pix_op)
2244 {
2245  int mx, my;
2246  int mb_x, mb_y, i;
2247  const int lowres = s->avctx->lowres;
2248  const int block_s = 8 >>lowres;
2249 
2250  mb_x = s->mb_x;
2251  mb_y = s->mb_y;
2252 
2253  switch (s->mv_type) {
2254  case MV_TYPE_16X16:
2255  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2256  0, 0, 0,
2257  ref_picture, pix_op,
2258  s->mv[dir][0][0], s->mv[dir][0][1],
2259  2 * block_s, mb_y);
2260  break;
2261  case MV_TYPE_8X8:
2262  mx = 0;
2263  my = 0;
2264  for (i = 0; i < 4; i++) {
2265  hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2266  s->linesize) * block_s,
2267  ref_picture[0], 0, 0,
2268  (2 * mb_x + (i & 1)) * block_s,
2269  (2 * mb_y + (i >> 1)) * block_s,
2270  s->width, s->height, s->linesize,
2271  s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2272  block_s, block_s, pix_op,
2273  s->mv[dir][i][0], s->mv[dir][i][1]);
2274 
2275  mx += s->mv[dir][i][0];
2276  my += s->mv[dir][i][1];
2277  }
2278 
2279  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
2280  chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2281  pix_op, mx, my);
2282  break;
2283  case MV_TYPE_FIELD:
2284  if (s->picture_structure == PICT_FRAME) {
2285  /* top field */
2286  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2287  1, 0, s->field_select[dir][0],
2288  ref_picture, pix_op,
2289  s->mv[dir][0][0], s->mv[dir][0][1],
2290  block_s, mb_y);
2291  /* bottom field */
2292  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2293  1, 1, s->field_select[dir][1],
2294  ref_picture, pix_op,
2295  s->mv[dir][1][0], s->mv[dir][1][1],
2296  block_s, mb_y);
2297  } else {
2298  if (s->picture_structure != s->field_select[dir][0] + 1 &&
2299  s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2300  ref_picture = s->current_picture_ptr->f->data;
2301 
2302  }
2303  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2304  0, 0, s->field_select[dir][0],
2305  ref_picture, pix_op,
2306  s->mv[dir][0][0],
2307  s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2308  }
2309  break;
2310  case MV_TYPE_16X8:
2311  for (i = 0; i < 2; i++) {
2312  uint8_t **ref2picture;
2313 
2314  if (s->picture_structure == s->field_select[dir][i] + 1 ||
2315  s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2316  ref2picture = ref_picture;
2317  } else {
2318  ref2picture = s->current_picture_ptr->f->data;
2319  }
2320 
2321  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2322  0, 0, s->field_select[dir][i],
2323  ref2picture, pix_op,
2324  s->mv[dir][i][0], s->mv[dir][i][1] +
2325  2 * block_s * i, block_s, mb_y >> 1);
2326 
2327  dest_y += 2 * block_s * s->linesize;
2328  dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2329  dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2330  }
2331  break;
2332  case MV_TYPE_DMV:
2333  if (s->picture_structure == PICT_FRAME) {
2334  for (i = 0; i < 2; i++) {
2335  int j;
2336  for (j = 0; j < 2; j++) {
2337  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2338  1, j, j ^ i,
2339  ref_picture, pix_op,
2340  s->mv[dir][2 * i + j][0],
2341  s->mv[dir][2 * i + j][1],
2342  block_s, mb_y);
2343  }
2345  }
2346  } else {
2347  for (i = 0; i < 2; i++) {
2348  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2349  0, 0, s->picture_structure != i + 1,
2350  ref_picture, pix_op,
2351  s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2352  2 * block_s, mb_y >> 1);
2353 
2354  // after put we make avg of the same block
2356 
2357  // opposite parity is always in the same
2358  // frame if this is second field
2359  if (!s->first_field) {
2360  ref_picture = s->current_picture_ptr->f->data;
2361  }
2362  }
2363  }
2364  break;
2365  default:
2366  av_assert2(0);
2367  }
2368 }
2369 
2370 /**
2371  * find the lowest MB row referenced in the MVs
2372  */
2374 {
2375  int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2376  int my, off, i, mvs;
2377 
2378  if (s->picture_structure != PICT_FRAME || s->mcsel)
2379  goto unhandled;
2380 
2381  switch (s->mv_type) {
2382  case MV_TYPE_16X16:
2383  mvs = 1;
2384  break;
2385  case MV_TYPE_16X8:
2386  mvs = 2;
2387  break;
2388  case MV_TYPE_8X8:
2389  mvs = 4;
2390  break;
2391  default:
2392  goto unhandled;
2393  }
2394 
2395  for (i = 0; i < mvs; i++) {
2396  my = s->mv[dir][i][1];
2397  my_max = FFMAX(my_max, my);
2398  my_min = FFMIN(my_min, my);
2399  }
2400 
2401  off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
2402 
2403  return av_clip(s->mb_y + off, 0, s->mb_height - 1);
2404 unhandled:
2405  return s->mb_height-1;
2406 }
2407 
2408 /* put block[] to dest[] */
2409 static inline void put_dct(MpegEncContext *s,
2410  int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2411 {
2412  s->dct_unquantize_intra(s, block, i, qscale);
2413  s->idsp.idct_put(dest, line_size, block);
2414 }
2415 
2416 /* add block[] to dest[] */
2417 static inline void add_dct(MpegEncContext *s,
2418  int16_t *block, int i, uint8_t *dest, int line_size)
2419 {
2420  if (s->block_last_index[i] >= 0) {
2421  s->idsp.idct_add(dest, line_size, block);
2422  }
2423 }
2424 
2425 static inline void add_dequant_dct(MpegEncContext *s,
2426  int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2427 {
2428  if (s->block_last_index[i] >= 0) {
2429  s->dct_unquantize_inter(s, block, i, qscale);
2430 
2431  s->idsp.idct_add(dest, line_size, block);
2432  }
2433 }
2434 
2435 /**
2436  * Clean dc, ac, coded_block for the current non-intra MB.
2437  */
2439 {
2440  int wrap = s->b8_stride;
2441  int xy = s->block_index[0];
2442 
2443  s->dc_val[0][xy ] =
2444  s->dc_val[0][xy + 1 ] =
2445  s->dc_val[0][xy + wrap] =
2446  s->dc_val[0][xy + 1 + wrap] = 1024;
2447  /* ac pred */
2448  memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2449  memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2450  if (s->msmpeg4_version>=3) {
2451  s->coded_block[xy ] =
2452  s->coded_block[xy + 1 ] =
2453  s->coded_block[xy + wrap] =
2454  s->coded_block[xy + 1 + wrap] = 0;
2455  }
2456  /* chroma */
2457  wrap = s->mb_stride;
2458  xy = s->mb_x + s->mb_y * wrap;
2459  s->dc_val[1][xy] =
2460  s->dc_val[2][xy] = 1024;
2461  /* ac pred */
2462  memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2463  memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2464 
2465  s->mbintra_table[xy]= 0;
2466 }
2467 
2468 /* generic function called after a macroblock has been parsed by the
2469  decoder or after it has been encoded by the encoder.
2470 
2471  Important variables used:
2472  s->mb_intra : true if intra macroblock
2473  s->mv_dir : motion vector direction
2474  s->mv_type : motion vector type
2475  s->mv : motion vector
2476  s->interlaced_dct : true if interlaced dct used (mpeg2)
2477  */
2478 static av_always_inline
2480  int lowres_flag, int is_mpeg12)
2481 {
2482  const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2483 
2484  if (CONFIG_XVMC &&
2485  s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2486  s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2487  return;
2488  }
2489 
2490  if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2491  /* print DCT coefficients */
2492  int i,j;
2493  av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2494  for(i=0; i<6; i++){
2495  for(j=0; j<64; j++){
2496  av_log(s->avctx, AV_LOG_DEBUG, "%5d",
2497  block[i][s->idsp.idct_permutation[j]]);
2498  }
2499  av_log(s->avctx, AV_LOG_DEBUG, "\n");
2500  }
2501  }
2502 
2503  s->current_picture.qscale_table[mb_xy] = s->qscale;
2504 
2505  /* update DC predictors for P macroblocks */
2506  if (!s->mb_intra) {
2507  if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2508  if(s->mbintra_table[mb_xy])
2510  } else {
2511  s->last_dc[0] =
2512  s->last_dc[1] =
2513  s->last_dc[2] = 128 << s->intra_dc_precision;
2514  }
2515  }
2516  else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2517  s->mbintra_table[mb_xy]=1;
2518 
2520  !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2521  s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2522  uint8_t *dest_y, *dest_cb, *dest_cr;
2523  int dct_linesize, dct_offset;
2524  op_pixels_func (*op_pix)[4];
2525  qpel_mc_func (*op_qpix)[16];
2526  const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2527  const int uvlinesize = s->current_picture.f->linesize[1];
2528  const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2529  const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2530 
2531  /* avoid copy if macroblock skipped in last frame too */
2532  /* skip only during decoding as we might trash the buffers during encoding a bit */
2533  if(!s->encoding){
2534  uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2535 
2536  if (s->mb_skipped) {
2537  s->mb_skipped= 0;
2539  *mbskip_ptr = 1;
2540  } else if(!s->current_picture.reference) {
2541  *mbskip_ptr = 1;
2542  } else{
2543  *mbskip_ptr = 0; /* not skipped */
2544  }
2545  }
2546 
2547  dct_linesize = linesize << s->interlaced_dct;
2548  dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2549 
2550  if(readable){
2551  dest_y= s->dest[0];
2552  dest_cb= s->dest[1];
2553  dest_cr= s->dest[2];
2554  }else{
2555  dest_y = s->sc.b_scratchpad;
2556  dest_cb= s->sc.b_scratchpad+16*linesize;
2557  dest_cr= s->sc.b_scratchpad+32*linesize;
2558  }
2559 
2560  if (!s->mb_intra) {
2561  /* motion handling */
2562  /* decoding or more than one mb_type (MC was already done otherwise) */
2563  if(!s->encoding){
2564 
2566  if (s->mv_dir & MV_DIR_FORWARD) {
2568  lowest_referenced_row(s, 0),
2569  0);
2570  }
2571  if (s->mv_dir & MV_DIR_BACKWARD) {
2573  lowest_referenced_row(s, 1),
2574  0);
2575  }
2576  }
2577 
2578  if(lowres_flag){
2580 
2581  if (s->mv_dir & MV_DIR_FORWARD) {
2582  MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2584  }
2585  if (s->mv_dir & MV_DIR_BACKWARD) {
2586  MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2587  }
2588  }else{
2589  op_qpix = s->me.qpel_put;
2590  if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2591  op_pix = s->hdsp.put_pixels_tab;
2592  }else{
2593  op_pix = s->hdsp.put_no_rnd_pixels_tab;
2594  }
2595  if (s->mv_dir & MV_DIR_FORWARD) {
2596  ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2597  op_pix = s->hdsp.avg_pixels_tab;
2598  op_qpix= s->me.qpel_avg;
2599  }
2600  if (s->mv_dir & MV_DIR_BACKWARD) {
2601  ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2602  }
2603  }
2604  }
2605 
2606  /* skip dequant / idct if we are really late ;) */
2607  if(s->avctx->skip_idct){
2610  || s->avctx->skip_idct >= AVDISCARD_ALL)
2611  goto skip_idct;
2612  }
2613 
2614  /* add dct residue */
2616  || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2617  add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2618  add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2619  add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2620  add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2621 
2622  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2623  if (s->chroma_y_shift){
2624  add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2625  add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2626  }else{
2627  dct_linesize >>= 1;
2628  dct_offset >>=1;
2629  add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2630  add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2631  add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2632  add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2633  }
2634  }
2635  } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2636  add_dct(s, block[0], 0, dest_y , dct_linesize);
2637  add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2638  add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2639  add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2640 
2641  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2642  if(s->chroma_y_shift){//Chroma420
2643  add_dct(s, block[4], 4, dest_cb, uvlinesize);
2644  add_dct(s, block[5], 5, dest_cr, uvlinesize);
2645  }else{
2646  //chroma422
2647  dct_linesize = uvlinesize << s->interlaced_dct;
2648  dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2649 
2650  add_dct(s, block[4], 4, dest_cb, dct_linesize);
2651  add_dct(s, block[5], 5, dest_cr, dct_linesize);
2652  add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2653  add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2654  if(!s->chroma_x_shift){//Chroma444
2655  add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2656  add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2657  add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2658  add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2659  }
2660  }
2661  }//fi gray
2662  }
2664  ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2665  }
2666  } else {
2667  /* dct only in intra block */
2669  put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2670  put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2671  put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2672  put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2673 
2674  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2675  if(s->chroma_y_shift){
2676  put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2677  put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2678  }else{
2679  dct_offset >>=1;
2680  dct_linesize >>=1;
2681  put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2682  put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2683  put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2684  put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2685  }
2686  }
2687  }else{
2688  s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2689  s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2690  s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2691  s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2692 
2693  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2694  if(s->chroma_y_shift){
2695  s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2696  s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2697  }else{
2698 
2699  dct_linesize = uvlinesize << s->interlaced_dct;
2700  dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2701 
2702  s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2703  s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2704  s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2705  s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2706  if(!s->chroma_x_shift){//Chroma444
2707  s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2708  s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2709  s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2710  s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2711  }
2712  }
2713  }//gray
2714  }
2715  }
2716 skip_idct:
2717  if(!readable){
2718  s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2719  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2720  s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2721  s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2722  }
2723  }
2724  }
2725 }
2726 
2728 {
2729 #if !CONFIG_SMALL
2730  if(s->out_format == FMT_MPEG1) {
2731  if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2732  else mpv_reconstruct_mb_internal(s, block, 0, 1);
2733  } else
2734 #endif
2735  if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2736  else mpv_reconstruct_mb_internal(s, block, 0, 0);
2737 }
2738 
2740 {
2743  s->first_field, s->low_delay);
2744 }
2745 
2746 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2747  const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2748  const int uvlinesize = s->current_picture.f->linesize[1];
2749  const int mb_size= 4 - s->avctx->lowres;
2750 
2751  s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2752  s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2753  s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2754  s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2755  s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2756  s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2757  //block_index is not used by mpeg2, so it is not affected by chroma_format
2758 
2759  s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
2760  s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2761  s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2762 
2764  {
2765  if(s->picture_structure==PICT_FRAME){
2766  s->dest[0] += s->mb_y * linesize << mb_size;
2767  s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2768  s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2769  }else{
2770  s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2771  s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2772  s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2774  }
2775  }
2776 }
2777 
2779  int i;
2780  MpegEncContext *s = avctx->priv_data;
2781 
2782  if (!s || !s->picture)
2783  return;
2784 
2785  for (i = 0; i < MAX_PICTURE_COUNT; i++)
2786  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2788 
2792 
2793  s->mb_x= s->mb_y= 0;
2794  s->closed_gop= 0;
2795 
2796  s->parse_context.state= -1;
2798  s->parse_context.overread= 0;
2800  s->parse_context.index= 0;
2801  s->parse_context.last_index= 0;
2802  s->bitstream_buffer_size=0;
2803  s->pp_time=0;
2804 }
2805 
2806 /**
2807  * set qscale and update qscale dependent variables.
2808  */
2809 void ff_set_qscale(MpegEncContext * s, int qscale)
2810 {
2811  if (qscale < 1)
2812  qscale = 1;
2813  else if (qscale > 31)
2814  qscale = 31;
2815 
2816  s->qscale = qscale;
2817  s->chroma_qscale= s->chroma_qscale_table[qscale];
2818 
2819  s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2821 }
2822 
2824 {
2827 }
int last_time_base
Definition: mpegvideo.h:386
int bitstream_buffer_size
Definition: mpegvideo.h:414
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free.
Definition: motion_est.h:52
#define AV_CODEC_FLAG_INTERLACED_ME
interlaced motion estimation
Definition: avcodec.h:938
#define FF_DEBUG_VIS_MB_TYPE
Definition: avcodec.h:3026
IDCTDSPContext idsp
Definition: mpegvideo.h:227
av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
Definition: videodsp.c:38
#define NULL
Definition: coverity.c:32
static int init_duplicate_context(MpegEncContext *s)
Definition: mpegvideo.c:356
int ff_thread_can_start_frame(AVCodecContext *avctx)
const struct AVCodec * codec
Definition: avcodec.h:1770
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:241
av_cold void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:43
discard all frames except keyframes
Definition: avcodec.h:829
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:2746
int picture_number
Definition: mpegvideo.h:124
const char * s
Definition: avisynth_c.h:768
void ff_wmv2_add_mb(MpegEncContext *s, int16_t block1[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)
Definition: wmv2.c:83
av_cold void ff_mpv_common_init_neon(MpegEncContext *s)
Definition: mpegvideo.c:126
ScanTable intra_v_scantable
Definition: mpegvideo.h:90
av_cold void ff_mpegvideodsp_init(MpegVideoDSPContext *c)
Definition: mpegvideodsp.c:110
static int shift(int a, int b)
Definition: sonic.c:82
#define CONFIG_WMV2_ENCODER
Definition: config.h:1540
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
int16_t(* p_mv_table)[2]
MV table (1MV per MB) P-frame encoding.
Definition: mpegvideo.h:245
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:150
#define MV_TYPE_FIELD
2 vectors, one per field
Definition: mpegvideo.h:269
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
Definition: mpegvideo.h:185
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegpicture.h:36
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1963
#define ARCH_PPC
Definition: config.h:29
static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
Definition: mpegvideo.c:1434
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:68
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:516
static av_always_inline void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64], int lowres_flag, int is_mpeg12)
Definition: mpegvideo.c:2479
#define IS_GMC(a)
Definition: mpegutils.h:87
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define CONFIG_XVMC
Definition: config.h:521
int16_t src_x
Absolute source position.
Definition: motion_vector.h:38
static void chroma_4mv_motion_lowres(MpegEncContext *s, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, h264_chroma_mc_func *pix_op, int mx, int my)
Definition: mpegvideo.c:2171
uint8_t * coded_block_base
Definition: mpegvideo.h:188
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:393
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:151
int16_t(*[3] ac_val)[16]
used for MPEG-4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:191
MJPEG encoder.
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:129
h264_chroma_mc_func put_h264_chroma_pixels_tab[4]
Definition: h264chroma.h:28
void * opaque
for some private data of the user
Definition: frame.h:329
#define me
static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
Definition: mpegvideo.c:276
static void gray_frame(AVFrame *frame)
Definition: mpegvideo.c:1176
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:436
int needs_realloc
Picture needs to be reallocated (eg due to a frame size change)
Definition: mpegpicture.h:85
#define HAVE_INTRINSICS_NEON
Definition: config.h:249
uint8_t * bitstream_buffer
Definition: mpegvideo.h:413
enum AVCodecID codec_id
Definition: mpegvideo.h:109
av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
Definition: blockdsp.c:60
int field_picture
whether or not the picture was encoded in separate fields
Definition: mpegpicture.h:79
int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
Definition: frame.c:54
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1989
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced P-frame encoding.
Definition: mpegvideo.h:251
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:237
uint8_t raster_end[64]
Definition: idctdsp.h:34
static int lowest_referenced_row(MpegEncContext *s, int dir)
find the lowest MB row referenced in the MVs
Definition: mpegvideo.c:2373
av_cold void ff_h264chroma_init(H264ChromaContext *c, int bit_depth)
Definition: h264chroma.c:41
uint32_t * score_map
map to store the scores
Definition: motion_est.h:59
mpegvideo header.
discard all
Definition: avcodec.h:830
uint8_t permutated[64]
Definition: idctdsp.h:33
attribute_deprecated void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Definition: imgconvert.c:38
static void free_duplicate_context(MpegEncContext *s)
Definition: mpegvideo.c:408
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:3164
int padding_bug_score
used to detect the VERY common padding bug in MPEG-4
Definition: mpegvideo.h:409
int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src)
Definition: mpegpicture.c:361
void ff_thread_await_progress(ThreadFrame *f, int n, int field)
Wait for earlier decoding threads to finish reference pictures.
#define FF_DEBUG_VIS_MV_B_FOR
Definition: avcodec.h:3041
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:130
#define src
Definition: vp8dsp.c:254
void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last, int y, int h, int picture_structure, int first_field, int low_delay)
Draw a horizontal band if supported.
Definition: mpegutils.c:30
int stride
Definition: mace.c:144
int frame_start_found
Definition: parser.h:34
int qscale
QP.
Definition: mpegvideo.h:201
int h263_aic
Advanced INTRA Coding (AIC)
Definition: mpegvideo.h:84
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode B-frame encoding.
Definition: mpegvideo.h:247
attribute_deprecated int8_t * qscale_table
QP table.
Definition: frame.h:522
void(* draw_horiz_band)(struct AVCodecContext *s, const AVFrame *src, int offset[AV_NUM_DATA_POINTERS], int y, int type, int height)
If non NULL, &#39;draw_horiz_band&#39; is called by the libavcodec decoder to draw a horizontal band...
Definition: avcodec.h:2022
enum AVPictureType last_picture
Definition: movenc.c:68
int chroma_x_shift
Definition: mpegvideo.h:476
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:111
int field_select[2][2]
Definition: mpegvideo.h:277
int block_wrap[6]
Definition: mpegvideo.h:294
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:82
Macro definitions for various function/variable attributes.
int16_t(* b_back_mv_table_base)[2]
Definition: mpegvideo.h:239
#define REBASE_PICTURE(pic, new_ctx, old_ctx)
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
Definition: mpegvideo.c:428
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:2438
#define COLOR(theta, r)
const uint8_t ff_mpeg2_non_linear_qscale[32]
Definition: mpegvideodata.c:27
static int16_t block[64]
Definition: dct.c:115
struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:3082
void(* emulated_edge_mc)(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
Definition: videodsp.h:63
#define USES_LIST(a, list)
Definition: mpegutils.h:101
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
Definition: mpegvideo.c:2739
int context_reinit
Definition: mpegvideo.h:549
const uint8_t ff_mpeg1_dc_scale_table[128]
Definition: mpegvideodata.c:34
int16_t * dc_val_base
Definition: mpegvideo.h:183
ScratchpadContext sc
Definition: mpegvideo.h:199
uint8_t
#define ME_MAP_SIZE
Definition: motion_est.h:38
#define av_cold
Definition: attributes.h:82
av_cold void ff_mpv_common_init_axp(MpegEncContext *s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:150
#define mb
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
enum OutputFormat out_format
output format
Definition: mpegvideo.h:101
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
Definition: log.c:94
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1036
int noise_reduction
Definition: mpegvideo.h:567
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])
#define FF_DEBUG_VIS_MV_B_BACK
Definition: avcodec.h:3042
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:197
Multithreading support functions.
int frame_skip_threshold
Definition: mpegvideo.h:561
qpel_mc_func(* qpel_put)[16]
Definition: motion_est.h:91
int16_t dst_x
Absolute destination position.
Definition: motion_vector.h:42
void ff_free_picture_tables(Picture *pic)
Definition: mpegpicture.c:458
#define emms_c()
Definition: internal.h:54
int no_rounding
apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) for B-frames rounding mode is always ...
Definition: mpegvideo.h:284
int interlaced_dct
Definition: mpegvideo.h:481
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:177
int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
Definition: mpegpicture.c:444
int intra_dc_precision
Definition: mpegvideo.h:461
static AVFrame * frame
#define FF_API_CAP_VDPAU
Definition: version.h:70
quarterpel DSP functions
void ff_mpv_common_init_ppc(MpegEncContext *s)
Structure to hold side data for an AVFrame.
Definition: frame.h:163
#define PICT_BOTTOM_FIELD
Definition: mpegutils.h:38
#define height
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:248
float * cplx_tab
Definition: mpegvideo.h:545
int32_t source
Where the current macroblock comes from; negative value when it comes from the past, positive value when it comes from the future.
Definition: motion_vector.h:30
char av_get_picture_type_char(enum AVPictureType pict_type)
Return a single letter to describe the given picture type pict_type.
Definition: utils.c:91
#define AV_CODEC_CAP_HWACCEL_VDPAU
Codec can export data for HW decoding (VDPAU).
Definition: avcodec.h:1038
#define ff_dlog(a,...)
#define FF_DEBUG_MB_TYPE
Definition: avcodec.h:3007
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:390
static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
Definition: mpegvideo.c:348
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:348
av_cold void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:330
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:126
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:3172
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:117
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:904
high precision timer, useful to profile code
int16_t(*[2][2] p_field_mv_table_base)[2]
Definition: mpegvideo.h:243
#define FF_BUG_IEDGE
Definition: avcodec.h:2967
#define av_log(a,...)
#define ff_sqrt
Definition: mathops.h:206
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:2809
#define ROUNDED_DIV(a, b)
Definition: common.h:56
static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
Definition: mpegvideo.c:270
int intra_only
if true, only intra pictures are generated
Definition: mpegvideo.h:99
ThreadFrame tf
Definition: mpegpicture.h:47
#define U(x)
Definition: vp56_arith.h:37
int16_t * dc_val[3]
used for MPEG-4 DC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:184
enum AVCodecID id
Definition: avcodec.h:3753
int h263_plus
H.263+ headers.
Definition: mpegvideo.h:106
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:153
unsigned int buffer_size
Definition: parser.h:32
int width
Definition: frame.h:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int last_dc[3]
last DC values for MPEG-1
Definition: mpegvideo.h:182
static void add_dct(MpegEncContext *s, int16_t *block, int i, uint8_t *dest, int line_size)
Definition: mpegvideo.c:2417
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:192
#define ARCH_X86
Definition: config.h:38
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
int chroma_y_shift
Definition: mpegvideo.h:477
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:403
uint8_t * rd_scratchpad
scratchpad for rate distortion mb decision
Definition: mpegpicture.h:37
#define AVERROR(e)
Definition: error.h:43
#define MAX_PICTURE_COUNT
Definition: mpegpicture.h:32
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: pixdesc.c:2447
ERContext er
Definition: mpegvideo.h:551
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:3211
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:216
uint8_t w
Width and height of the block.
Definition: motion_vector.h:34
int reference
Definition: mpegpicture.h:87
int capabilities
Codec capabilities.
Definition: avcodec.h:3758
void(* h264_chroma_mc_func)(uint8_t *dst, uint8_t *src, ptrdiff_t srcStride, int h, int x, int y)
Definition: h264chroma.h:25
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:141
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1856
#define wrap(func)
Definition: neontest.h:65
uint16_t width
Definition: gdv.c:47
static void put_dct(MpegEncContext *s, int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
Definition: mpegvideo.c:2409
simple assert() macros that are a bit more flexible than ISO C assert().
int overread_index
the index into ParseContext.buffer of the overread bytes
Definition: parser.h:36
#define PICT_TOP_FIELD
Definition: mpegutils.h:37
static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:53
#define IS_SKIP(a)
Definition: mpegutils.h:83
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:399
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:291
static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color)
Draw a line from (ex, ey) -> (sx, sy).
Definition: mpegvideo.c:1463
int low_delay
no reordering needed / has no B-frames
Definition: mpegvideo.h:404
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:254
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
void * av_memdup(const void *p, size_t size)
Duplicate a buffer with av_malloc().
Definition: mem.c:269
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1122
#define FFMAX(a, b)
Definition: common.h:94
av_cold void ff_mpv_common_init_x86(MpegEncContext *s)
Definition: mpegvideo.c:454
#define fail()
Definition: checkasm.h:109
void ff_mpeg_flush(AVCodecContext *avctx)
Definition: mpegvideo.c:2778
return
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
Definition: hpeldsp.c:338
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
Definition: mpegvideo.h:123
int * lambda_table
Definition: mpegvideo.h:205
uint8_t * error_status_table
const uint8_t ff_alternate_horizontal_scan[64]
Definition: mpegvideodata.c:89
int ff_mpeg_er_init(MpegEncContext *s)
Definition: mpeg_er.c:98
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
Definition: mem.c:481
common internal API header
#define MAX_THREADS
static void draw_arrow(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color, int tail, int direction)
Draw an arrow from (ex, ey) -> (sx, sy).
Definition: mpegvideo.c:1521
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
Definition: imgutils.c:281
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
Definition: mpegvideo.c:1973
int progressive_frame
Definition: mpegvideo.h:479
#define IS_16X8(a)
Definition: mpegutils.h:89
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:284
#define UPDATE_PICTURE(pic)
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
Definition: avcodec.h:929
int top_field_first
Definition: mpegvideo.h:463
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:3203
uint8_t * er_temp_buffer
int overread
the number of bytes which where irreversibly read from the next frame
Definition: parser.h:35
#define FFMIN(a, b)
Definition: common.h:96
int last_index
Definition: parser.h:31
#define IS_DIRECT(a)
Definition: mpegutils.h:86
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed B-frames
Definition: mpegvideo.h:360
#define ARCH_ARM
Definition: config.h:19
int32_t motion_x
Motion vector src_x = dst_x + motion_x / motion_scale src_y = dst_y + motion_y / motion_scale.
Definition: motion_vector.h:53
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:175
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:171
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:506
int width
picture width / height.
Definition: avcodec.h:1948
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:193
int16_t(*[2] motion_val)[2]
Definition: mpegpicture.h:53
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:181
Picture.
Definition: mpegpicture.h:45
int alternate_scan
Definition: mpegvideo.h:468
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:415
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
Notify later decoding threads when part of their reference picture is ready.
int16_t(* ac_val_base)[16]
Definition: mpegvideo.h:190
int32_t
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:908
Motion vectors exported by some codecs (on demand through the export_mvs flag set in the libavcodec A...
Definition: frame.h:96
void(* idct_add)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:79
#define FF_DEBUG_SKIP
Definition: avcodec.h:3016
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:3204
int16_t(*[2][2][2] b_field_mv_table_base)[2]
Definition: mpegvideo.h:244
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:520
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:238
#define AV_RL32
Definition: intreadwrite.h:146
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:518
int16_t(*[12] pblocks)[64]
Definition: mpegvideo.h:496
#define CONFIG_GRAY
Definition: config.h:528
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:83
MotionEstContext me
Definition: mpegvideo.h:282
int frame_skip_factor
Definition: mpegvideo.h:562
int n
Definition: avisynth_c.h:684
uint8_t idct_permutation[64]
IDCT input permutation.
Definition: idctdsp.h:96
av_cold void ff_mpv_common_init_mips(MpegEncContext *s)
int mb_decision
macroblock decision mode
Definition: avcodec.h:2324
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:195
void(* idct_put)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:72
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:512
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:483
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:219
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:657
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:3192
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:293
#define IS_INTRA16x16(a)
Definition: mpegutils.h:78
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
Definition: mpegvideo.h:297
int first_field
is 1 for the first field of a field picture 0 otherwise
Definition: mpegvideo.h:482
static const int8_t mv[256][2]
Definition: 4xm.c:77
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:274
#define MV_TYPE_16X16
1 vector for the whole mb
Definition: mpegvideo.h:266
static void clear_context(MpegEncContext *s)
Definition: mpegvideo.c:798
AVBufferRef * qscale_table_buf
Definition: mpegpicture.h:49
#define MV_DIR_BACKWARD
Definition: mpegvideo.h:263
int16_t(* b_bidir_forw_mv_table_base)[2]
Definition: mpegvideo.h:240
int coded_picture_number
picture number in bitstream order
Definition: frame.h:315
uint16_t inter_matrix[64]
Definition: mpegvideo.h:302
#define IS_INTERLACED(a)
Definition: mpegutils.h:85
uint8_t * buffer
Definition: parser.h:29
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:152
Libavcodec external API header.
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:131
enum AVCodecID codec_id
Definition: avcodec.h:1778
BlockDSPContext bdsp
Definition: mpegvideo.h:223
enum AVDiscard skip_idct
Skip IDCT/dequantization for selected frames.
Definition: avcodec.h:3379
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
int debug
debug
Definition: avcodec.h:3003
main external API structure.
Definition: avcodec.h:1761
int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me, ScratchpadContext *sc, int shared, int encoding, int chroma_x_shift, int chroma_y_shift, int out_format, int mb_stride, int mb_width, int mb_height, int b8_stride, ptrdiff_t *linesize, ptrdiff_t *uvlinesize)
Allocate a Picture.
Definition: mpegpicture.c:231
ScanTable intra_scantable
Definition: mpegvideo.h:88
uint8_t * data
The data buffer.
Definition: buffer.h:89
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
Definition: mpegvideo.h:189
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:97
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> (&#39;D&#39;<<24) + (&#39;C&#39;<<16) + (&#39;B&#39;<<8) + &#39;A&#39;).
Definition: avcodec.h:1793
uint8_t * data
Definition: frame.h:165
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:111
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:510
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:56
#define MV_TYPE_16X8
2 vectors, one per 16x8 block
Definition: mpegvideo.h:268
static int add_mb(AVMotionVector *mb, uint32_t mb_type, int dst_x, int dst_y, int motion_x, int motion_y, int motion_scale, int direction)
Definition: mpegvideo.c:1560
void * buf
Definition: avisynth_c.h:690
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
Definition: mpegvideo.c:1966
void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table, uint32_t *mbtype_table, int8_t *qscale_table, int16_t(*motion_val[2])[2], int *low_delay, int mb_width, int mb_height, int mb_stride, int quarter_sample)
Print debugging info for the given picture.
Definition: mpegvideo.c:1582
uint32_t state
contains the last few bytes in MSB order
Definition: parser.h:33
Picture * picture
main picture buffer
Definition: mpegvideo.h:133
int progressive_sequence
Definition: mpegvideo.h:454
int coded_height
Definition: avcodec.h:1963
#define IS_16X16(a)
Definition: mpegutils.h:88
ScanTable intra_h_scantable
Definition: mpegvideo.h:89
op_pixels_func put_no_rnd_pixels_tab[4][4]
Halfpel motion compensation with no rounding (a+b)>>1.
Definition: hpeldsp.h:82
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced B-frame encoding.
Definition: mpegvideo.h:252
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:196
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:674
int closed_gop
MPEG1/2 GOP is closed.
Definition: mpegvideo.h:208
int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me, ScratchpadContext *sc, int linesize)
Definition: mpegpicture.c:56
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:2119
#define FF_DEBUG_DCT_COEFF
Definition: avcodec.h:3015
struct AVFrame * f
Definition: mpegpicture.h:46
#define FF_MB_DECISION_RD
rate distortion
Definition: avcodec.h:2327
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:514
#define IS_8X16(a)
Definition: mpegutils.h:90
int context_initialized
Definition: mpegvideo.h:121
const uint8_t ff_zigzag_direct[64]
Definition: mathtables.c:98
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:132
int32_t motion_y
Definition: motion_vector.h:53
#define ARCH_MIPS
Definition: config.h:26
#define s1
Definition: regdef.h:38
static int ff_h263_round_chroma(int x)
Definition: motion_est.h:101
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function called after decoding the header and before a frame is decoded.
Definition: mpegvideo.c:1196
#define u(width,...)
int f_code
forward MV resolution
Definition: mpegvideo.h:235
#define COPY(a)
#define MV_DIR_FORWARD
Definition: mpegvideo.h:262
int max_b_frames
max number of B-frames for encoding
Definition: mpegvideo.h:112
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:209
int size
Size of data in bytes.
Definition: buffer.h:93
int h263_pred
use MPEG-4/H.263 ac/dc predictions
Definition: mpegvideo.h:102
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:249
int av_frame_make_writable(AVFrame *frame)
Ensure that the frame data is writable, avoiding data copy if possible.
Definition: frame.c:560
static int init_context_frame(MpegEncContext *s)
Initialize and allocates MpegEncContext fields dependent on the resolution.
Definition: mpegvideo.c:677
#define IS_PCM(a)
Definition: mpegutils.h:79
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:253
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode B-frame encoding.
Definition: mpegvideo.h:250
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:186
uint8_t level
Definition: svq3.c:207
qpel_mc_func(* qpel_avg)[16]
Definition: motion_est.h:92
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
Definition: mpegvideo.h:276
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode B-frame encoding.
Definition: mpegvideo.h:246
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:128
uint16_t motion_scale
Definition: motion_vector.h:54
static void dct_unquantize_h263_intra_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:209
MpegEncContext.
Definition: mpegvideo.h:78
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:180
int8_t * qscale_table
Definition: mpegpicture.h:50
struct AVCodecContext * avctx
Definition: mpegvideo.h:95
void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *pic)
Deallocate a picture.
Definition: mpegpicture.c:294
A reference to a data buffer.
Definition: buffer.h:81
discard all non reference
Definition: avcodec.h:826
int
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:229
int(* dct_error_sum)[64]
Definition: mpegvideo.h:332
uint64_t flags
Extra flag information.
Definition: motion_vector.h:47
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:127
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
Definition: mpegvideo.c:662
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
const uint8_t ff_default_chroma_qscale_table[32]
Definition: mpegvideodata.c:21
#define ARCH_ALPHA
Definition: config.h:18
uint8_t * dest[3]
Definition: mpegvideo.h:295
#define FF_ALLOC_OR_GOTO(ctx, p, size, label)
Definition: internal.h:133
static av_cold int dct_init(MpegEncContext *s)
Definition: mpegvideo.c:283
static double c[64]
int last_pict_type
Definition: mpegvideo.h:211
static void dct_unquantize_h263_inter_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:243
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:159
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
#define FF_DEBUG_QP
Definition: avcodec.h:3008
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:179
Bi-dir predicted.
Definition: avutil.h:276
int index
Definition: parser.h:30
#define FF_DEBUG_VIS_MV_P_FOR
Definition: avcodec.h:3040
int workaround_bugs
Work around bugs in encoders which sometimes cannot be detected automatically.
Definition: avcodec.h:2946
uint8_t * b_scratchpad
scratchpad used for writing into write only buffers
Definition: mpegpicture.h:39
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (H.263)
Definition: mpegvideo.h:187
const uint8_t ff_alternate_vertical_scan[64]
uint32_t * map
map to avoid duplicate evaluations
Definition: motion_est.h:58
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
Definition: mpegvideo.c:455
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:777
static int lowres
Definition: ffplay.c:331
H264ChromaContext h264chroma
Definition: mpegvideo.h:225
int16_t(* blocks)[12][64]
Definition: mpegvideo.h:499
#define IS_INTRA(x, y)
h264_chroma_mc_func avg_h264_chroma_pixels_tab[4]
Definition: h264chroma.h:29
int slices
Number of slices.
Definition: avcodec.h:2514
void * priv_data
Definition: avcodec.h:1803
#define PICT_FRAME
Definition: mpegutils.h:39
av_cold int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:877
#define IS_INTRA4x4(a)
Definition: mpegutils.h:77
int picture_structure
Definition: mpegvideo.h:458
av_cold void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable)
Definition: idctdsp.c:29
VideoDSPContext vdsp
Definition: mpegvideo.h:233
av_cold void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx)
Definition: idctdsp.c:238
#define IS_8X8(a)
Definition: mpegutils.h:91
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:353
void ff_mpv_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1424
#define MV_TYPE_DMV
2 vectors, special mpeg2 Dual Prime Vectors
Definition: mpegvideo.h:270
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
Definition: mpegvideo.c:2727
uint8_t * obmc_scratchpad
Definition: mpegpicture.h:38
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:498
ParseContext parse_context
Definition: mpegvideo.h:362
static void add_dequant_dct(MpegEncContext *s, int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
Definition: mpegvideo.c:2425
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:165
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:279
#define FF_DEBUG_NOMC
Definition: avcodec.h:3031
#define IS_ACPRED(a)
Definition: mpegutils.h:96
#define CONFIG_WMV2_DECODER
Definition: config.h:931
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int field_based, int bottom_field, int field_select, uint8_t **ref_picture, h264_chroma_mc_func *pix_op, int motion_x, int motion_y, int h, int mb_y)
Definition: mpegvideo.c:2032
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:1863
#define HAVE_THREADS
Definition: config.h:385
int chroma_qscale
chroma QP
Definition: mpegvideo.h:202
#define AV_CODEC_FLAG2_EXPORT_MVS
Export motion vectors through frame side data.
Definition: avcodec.h:976
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2554
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
Definition: mpegvideo.c:634
static void free_context_frame(MpegEncContext *s)
Frees and resets MpegEncContext fields depending on the resolution.
Definition: mpegvideo.c:987
static int hpel_motion_lowres(MpegEncContext *s, uint8_t *dest, uint8_t *src, int field_based, int field_select, int src_x, int src_y, int width, int height, ptrdiff_t stride, int h_edge_pos, int v_edge_pos, int w, int h, h264_chroma_mc_func *pix_op, int motion_x, int motion_y)
Definition: mpegvideo.c:1985
int height
Definition: frame.h:259
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
Definition: mpegvideo.h:300
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegpicture.h:56
#define av_freep(p)
void INT64 INT64 count
Definition: avisynth_c.h:690
void(* decode_mb)(struct MpegEncContext *s)
Called for every Macroblock in a slice.
Definition: avcodec.h:3975
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:116
ScanTable inter_scantable
if inter == intra then intra should be used to reduce the cache usage
Definition: mpegvideo.h:87
#define av_always_inline
Definition: attributes.h:39
uint8_t * temp
Definition: motion_est.h:56
#define FF_DEBUG_VIS_QP
Definition: avcodec.h:3025
#define av_malloc_array(a, b)
#define FFSWAP(type, a, b)
Definition: common.h:99
const char int length
Definition: avisynth_c.h:768
int debug_mv
debug
Definition: avcodec.h:3039
#define MV_TYPE_8X8
4 vectors (H.263, MPEG-4 4MV)
Definition: mpegvideo.h:267
int16_t(* b_direct_mv_table_base)[2]
Definition: mpegvideo.h:242
int b_code
backward MV resolution for B-frames (MPEG-4)
Definition: mpegvideo.h:236
float * bits_tab
Definition: mpegvideo.h:545
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:508
void ff_mpv_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo.c:2823
static void MPV_motion_lowres(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, h264_chroma_mc_func *pix_op)
motion compensation of a single macroblock
Definition: mpegvideo.c:2239
#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)
Definition: internal.h:142
Predicted.
Definition: avutil.h:275
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
HpelDSPContext hdsp
Definition: mpegvideo.h:226