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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 
313  if (HAVE_INTRINSICS_NEON)
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  if (s->codec_id == AV_CODEC_ID_MPEG4)
334  ff_idctdsp_init(&s->idsp, s->avctx);
335 
336  /* load & permutate scantables
337  * note: only wmv uses different ones
338  */
339  if (s->alternate_scan) {
342  } else {
345  }
348 }
349 
350 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
351 {
352  return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
354  s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
355  &s->linesize, &s->uvlinesize);
356 }
357 
359 {
360  int y_size = s->b8_stride * (2 * s->mb_height + 1);
361  int c_size = s->mb_stride * (s->mb_height + 1);
362  int yc_size = y_size + 2 * c_size;
363  int i;
364 
365  if (s->mb_height & 1)
366  yc_size += 2*s->b8_stride + 2*s->mb_stride;
367 
368  s->sc.edge_emu_buffer =
369  s->me.scratchpad =
370  s->me.temp =
371  s->sc.rd_scratchpad =
372  s->sc.b_scratchpad =
373  s->sc.obmc_scratchpad = NULL;
374 
375  if (s->encoding) {
376  FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
377  ME_MAP_SIZE * sizeof(uint32_t), fail)
379  ME_MAP_SIZE * sizeof(uint32_t), fail)
380  if (s->noise_reduction) {
382  2 * 64 * sizeof(int), fail)
383  }
384  }
385  FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
386  s->block = s->blocks[0];
387 
388  for (i = 0; i < 12; i++) {
389  s->pblocks[i] = &s->block[i];
390  }
391 
392  FF_ALLOCZ_OR_GOTO(s->avctx, s->block32, sizeof(*s->block32), fail)
393 
394  if (s->avctx->codec_tag == AV_RL32("VCR2")) {
395  // exchange uv
396  FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
397  }
398 
399  if (s->out_format == FMT_H263) {
400  /* ac values */
402  yc_size * sizeof(int16_t) * 16, fail);
403  s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
404  s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
405  s->ac_val[2] = s->ac_val[1] + c_size;
406  }
407 
408  return 0;
409 fail:
410  return -1; // free() through ff_mpv_common_end()
411 }
412 
414 {
415  if (!s)
416  return;
417 
419  av_freep(&s->me.scratchpad);
420  s->me.temp =
421  s->sc.rd_scratchpad =
422  s->sc.b_scratchpad =
423  s->sc.obmc_scratchpad = NULL;
424 
425  av_freep(&s->dct_error_sum);
426  av_freep(&s->me.map);
427  av_freep(&s->me.score_map);
428  av_freep(&s->blocks);
429  av_freep(&s->block32);
430  av_freep(&s->ac_val_base);
431  s->block = NULL;
432 }
433 
435 {
436 #define COPY(a) bak->a = src->a
437  COPY(sc.edge_emu_buffer);
438  COPY(me.scratchpad);
439  COPY(me.temp);
440  COPY(sc.rd_scratchpad);
441  COPY(sc.b_scratchpad);
442  COPY(sc.obmc_scratchpad);
443  COPY(me.map);
444  COPY(me.score_map);
445  COPY(blocks);
446  COPY(block);
447  COPY(block32);
448  COPY(start_mb_y);
449  COPY(end_mb_y);
450  COPY(me.map_generation);
451  COPY(pb);
452  COPY(dct_error_sum);
453  COPY(dct_count[0]);
454  COPY(dct_count[1]);
455  COPY(ac_val_base);
456  COPY(ac_val[0]);
457  COPY(ac_val[1]);
458  COPY(ac_val[2]);
459 #undef COPY
460 }
461 
463 {
464  MpegEncContext bak;
465  int i, ret;
466  // FIXME copy only needed parts
467  // START_TIMER
468  backup_duplicate_context(&bak, dst);
469  memcpy(dst, src, sizeof(MpegEncContext));
470  backup_duplicate_context(dst, &bak);
471  for (i = 0; i < 12; i++) {
472  dst->pblocks[i] = &dst->block[i];
473  }
474  if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
475  // exchange uv
476  FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
477  }
478  if (!dst->sc.edge_emu_buffer &&
479  (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
480  &dst->sc, dst->linesize)) < 0) {
481  av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
482  "scratch buffers.\n");
483  return ret;
484  }
485  // STOP_TIMER("update_duplicate_context")
486  // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
487  return 0;
488 }
489 
491  const AVCodecContext *src)
492 {
493  int i, ret;
494  MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
495 
496  if (dst == src)
497  return 0;
498 
499  av_assert0(s != s1);
500 
501  // FIXME can parameters change on I-frames?
502  // in that case dst may need a reinit
503  if (!s->context_initialized) {
504  int err;
505  memcpy(s, s1, sizeof(MpegEncContext));
506 
507  s->avctx = dst;
508  s->bitstream_buffer = NULL;
510 
511  if (s1->context_initialized){
512 // s->picture_range_start += MAX_PICTURE_COUNT;
513 // s->picture_range_end += MAX_PICTURE_COUNT;
514  ff_mpv_idct_init(s);
515  if((err = ff_mpv_common_init(s)) < 0){
516  memset(s, 0, sizeof(MpegEncContext));
517  s->avctx = dst;
518  return err;
519  }
520  }
521  }
522 
523  if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
524  s->context_reinit = 0;
525  s->height = s1->height;
526  s->width = s1->width;
527  if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
528  return ret;
529  }
530 
531  s->avctx->coded_height = s1->avctx->coded_height;
532  s->avctx->coded_width = s1->avctx->coded_width;
533  s->avctx->width = s1->avctx->width;
534  s->avctx->height = s1->avctx->height;
535 
536  s->coded_picture_number = s1->coded_picture_number;
537  s->picture_number = s1->picture_number;
538 
539  av_assert0(!s->picture || s->picture != s1->picture);
540  if(s->picture)
541  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
542  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
543  if (s1->picture && s1->picture[i].f->buf[0] &&
544  (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
545  return ret;
546  }
547 
548 #define UPDATE_PICTURE(pic)\
549 do {\
550  ff_mpeg_unref_picture(s->avctx, &s->pic);\
551  if (s1->pic.f && s1->pic.f->buf[0])\
552  ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
553  else\
554  ret = ff_update_picture_tables(&s->pic, &s1->pic);\
555  if (ret < 0)\
556  return ret;\
557 } while (0)
558 
559  UPDATE_PICTURE(current_picture);
561  UPDATE_PICTURE(next_picture);
562 
563 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
564  ((pic && pic >= old_ctx->picture && \
565  pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
566  &new_ctx->picture[pic - old_ctx->picture] : NULL)
567 
568  s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
569  s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
570  s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
571 
572  // Error/bug resilience
573  s->next_p_frame_damaged = s1->next_p_frame_damaged;
574  s->workaround_bugs = s1->workaround_bugs;
575  s->padding_bug_score = s1->padding_bug_score;
576 
577  // MPEG-4 timing info
578  memcpy(&s->last_time_base, &s1->last_time_base,
579  (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
580  (char *) &s1->last_time_base);
581 
582  // B-frame info
583  s->max_b_frames = s1->max_b_frames;
584  s->low_delay = s1->low_delay;
585  s->droppable = s1->droppable;
586 
587  // DivX handling (doesn't work)
588  s->divx_packed = s1->divx_packed;
589 
590  if (s1->bitstream_buffer) {
591  if (s1->bitstream_buffer_size +
595  s1->allocated_bitstream_buffer_size);
596  if (!s->bitstream_buffer) {
597  s->bitstream_buffer_size = 0;
598  return AVERROR(ENOMEM);
599  }
600  }
601  s->bitstream_buffer_size = s1->bitstream_buffer_size;
602  memcpy(s->bitstream_buffer, s1->bitstream_buffer,
603  s1->bitstream_buffer_size);
604  memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
606  }
607 
608  // linesize-dependent scratch buffer allocation
609  if (!s->sc.edge_emu_buffer)
610  if (s1->linesize) {
611  if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
612  &s->sc, s1->linesize) < 0) {
613  av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
614  "scratch buffers.\n");
615  return AVERROR(ENOMEM);
616  }
617  } else {
618  av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
619  "be allocated due to unknown size.\n");
620  }
621 
622  // MPEG-2/interlacing info
623  memcpy(&s->progressive_sequence, &s1->progressive_sequence,
624  (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
625 
626  if (!s1->first_field) {
627  s->last_pict_type = s1->pict_type;
628  if (s1->current_picture_ptr)
629  s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
630  }
631 
632  return 0;
633 }
634 
635 /**
636  * Set the given MpegEncContext to common defaults
637  * (same for encoding and decoding).
638  * The changed fields will not depend upon the
639  * prior state of the MpegEncContext.
640  */
642 {
643  s->y_dc_scale_table =
646  s->progressive_frame = 1;
647  s->progressive_sequence = 1;
649 
650  s->coded_picture_number = 0;
651  s->picture_number = 0;
652 
653  s->f_code = 1;
654  s->b_code = 1;
655 
656  s->slice_context_count = 1;
657 }
658 
659 /**
660  * Set the given MpegEncContext to defaults for decoding.
661  * the changed fields will not depend upon
662  * the prior state of the MpegEncContext.
663  */
665 {
667 }
668 
670 {
671  s->avctx = avctx;
672  s->width = avctx->coded_width;
673  s->height = avctx->coded_height;
674  s->codec_id = avctx->codec->id;
675  s->workaround_bugs = avctx->workaround_bugs;
676 
677  /* convert fourcc to upper case */
678  s->codec_tag = avpriv_toupper4(avctx->codec_tag);
679 }
680 
681 /**
682  * Initialize and allocates MpegEncContext fields dependent on the resolution.
683  */
685 {
686  int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
687 
688  s->mb_width = (s->width + 15) / 16;
689  s->mb_stride = s->mb_width + 1;
690  s->b8_stride = s->mb_width * 2 + 1;
691  mb_array_size = s->mb_height * s->mb_stride;
692  mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
693 
694  /* set default edge pos, will be overridden
695  * in decode_header if needed */
696  s->h_edge_pos = s->mb_width * 16;
697  s->v_edge_pos = s->mb_height * 16;
698 
699  s->mb_num = s->mb_width * s->mb_height;
700 
701  s->block_wrap[0] =
702  s->block_wrap[1] =
703  s->block_wrap[2] =
704  s->block_wrap[3] = s->b8_stride;
705  s->block_wrap[4] =
706  s->block_wrap[5] = s->mb_stride;
707 
708  y_size = s->b8_stride * (2 * s->mb_height + 1);
709  c_size = s->mb_stride * (s->mb_height + 1);
710  yc_size = y_size + 2 * c_size;
711 
712  if (s->mb_height & 1)
713  yc_size += 2*s->b8_stride + 2*s->mb_stride;
714 
715  FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
716  fail); // error resilience code looks cleaner with this
717  for (y = 0; y < s->mb_height; y++)
718  for (x = 0; x < s->mb_width; x++)
719  s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
720 
721  s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
722 
723  if (s->encoding) {
724  /* Allocate MV tables */
725  FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
726  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
727  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
728  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
729  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
730  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
731  s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
737 
738  /* Allocate MB type table */
739  FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
740 
741  FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
742 
744  mb_array_size * sizeof(float), fail);
746  mb_array_size * sizeof(float), fail);
747 
748  }
749 
750  if (s->codec_id == AV_CODEC_ID_MPEG4 ||
752  /* interlaced direct mode decoding tables */
753  for (i = 0; i < 2; i++) {
754  int j, k;
755  for (j = 0; j < 2; j++) {
756  for (k = 0; k < 2; k++) {
758  s->b_field_mv_table_base[i][j][k],
759  mv_table_size * 2 * sizeof(int16_t),
760  fail);
761  s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
762  s->mb_stride + 1;
763  }
764  FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
765  FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
766  s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
767  }
768  FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
769  }
770  }
771  if (s->out_format == FMT_H263) {
772  /* cbp values */
773  FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
774  s->coded_block = s->coded_block_base + s->b8_stride + 1;
775 
776  /* cbp, ac_pred, pred_dir */
777  FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
778  FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
779  }
780 
781  if (s->h263_pred || s->h263_plus || !s->encoding) {
782  /* dc values */
783  // MN: we need these for error resilience of intra-frames
784  FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
785  s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
786  s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
787  s->dc_val[2] = s->dc_val[1] + c_size;
788  for (i = 0; i < yc_size; i++)
789  s->dc_val_base[i] = 1024;
790  }
791 
792  /* which mb is an intra block */
793  FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
794  memset(s->mbintra_table, 1, mb_array_size);
795 
796  /* init macroblock skip table */
797  FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
798  // Note the + 1 is for a quicker MPEG-4 slice_end detection
799 
800  return ff_mpeg_er_init(s);
801 fail:
802  return AVERROR(ENOMEM);
803 }
804 
806 {
807  int i, j, k;
808 
809  memset(&s->next_picture, 0, sizeof(s->next_picture));
810  memset(&s->last_picture, 0, sizeof(s->last_picture));
811  memset(&s->current_picture, 0, sizeof(s->current_picture));
812  memset(&s->new_picture, 0, sizeof(s->new_picture));
813 
814  memset(s->thread_context, 0, sizeof(s->thread_context));
815 
816  s->me.map = NULL;
817  s->me.score_map = NULL;
818  s->dct_error_sum = NULL;
819  s->block = NULL;
820  s->blocks = NULL;
821  s->block32 = NULL;
822  memset(s->pblocks, 0, sizeof(s->pblocks));
823  s->ac_val_base = NULL;
824  s->ac_val[0] =
825  s->ac_val[1] =
826  s->ac_val[2] =NULL;
827  s->sc.edge_emu_buffer = NULL;
828  s->me.scratchpad = NULL;
829  s->me.temp =
830  s->sc.rd_scratchpad =
831  s->sc.b_scratchpad =
832  s->sc.obmc_scratchpad = NULL;
833 
834 
835  s->bitstream_buffer = NULL;
837  s->picture = NULL;
838  s->mb_type = NULL;
839  s->p_mv_table_base = NULL;
845  s->p_mv_table = NULL;
846  s->b_forw_mv_table = NULL;
847  s->b_back_mv_table = NULL;
850  s->b_direct_mv_table = NULL;
851  for (i = 0; i < 2; i++) {
852  for (j = 0; j < 2; j++) {
853  for (k = 0; k < 2; k++) {
854  s->b_field_mv_table_base[i][j][k] = NULL;
855  s->b_field_mv_table[i][j][k] = NULL;
856  }
857  s->b_field_select_table[i][j] = NULL;
858  s->p_field_mv_table_base[i][j] = NULL;
859  s->p_field_mv_table[i][j] = NULL;
860  }
861  s->p_field_select_table[i] = NULL;
862  }
863 
864  s->dc_val_base = NULL;
865  s->coded_block_base = NULL;
866  s->mbintra_table = NULL;
867  s->cbp_table = NULL;
868  s->pred_dir_table = NULL;
869 
870  s->mbskip_table = NULL;
871 
873  s->er.er_temp_buffer = NULL;
874  s->mb_index2xy = NULL;
875  s->lambda_table = NULL;
876 
877  s->cplx_tab = NULL;
878  s->bits_tab = NULL;
879 }
880 
881 /**
882  * init common structure for both encoder and decoder.
883  * this assumes that some variables like width/height are already set
884  */
886 {
887  int i, ret;
888  int nb_slices = (HAVE_THREADS &&
890  s->avctx->thread_count : 1;
891 
892  clear_context(s);
893 
894  if (s->encoding && s->avctx->slices)
895  nb_slices = s->avctx->slices;
896 
898  s->mb_height = (s->height + 31) / 32 * 2;
899  else
900  s->mb_height = (s->height + 15) / 16;
901 
902  if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
904  "decoding to AV_PIX_FMT_NONE is not supported.\n");
905  return -1;
906  }
907 
908  if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
909  int max_slices;
910  if (s->mb_height)
911  max_slices = FFMIN(MAX_THREADS, s->mb_height);
912  else
913  max_slices = MAX_THREADS;
914  av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
915  " reducing to %d\n", nb_slices, max_slices);
916  nb_slices = max_slices;
917  }
918 
919  if ((s->width || s->height) &&
920  av_image_check_size(s->width, s->height, 0, s->avctx))
921  return -1;
922 
923  dct_init(s);
924 
925  /* set chroma shifts */
927  &s->chroma_x_shift,
928  &s->chroma_y_shift);
929  if (ret)
930  return ret;
931 
933  MAX_PICTURE_COUNT * sizeof(Picture), fail);
934  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
935  s->picture[i].f = av_frame_alloc();
936  if (!s->picture[i].f)
937  goto fail;
938  }
940  if (!s->next_picture.f)
941  goto fail;
943  if (!s->last_picture.f)
944  goto fail;
946  if (!s->current_picture.f)
947  goto fail;
949  if (!s->new_picture.f)
950  goto fail;
951 
952  if (init_context_frame(s))
953  goto fail;
954 
955  s->parse_context.state = -1;
956 
957  s->context_initialized = 1;
958  memset(s->thread_context, 0, sizeof(s->thread_context));
959  s->thread_context[0] = s;
960 
961 // if (s->width && s->height) {
962  if (nb_slices > 1) {
963  for (i = 0; i < nb_slices; i++) {
964  if (i) {
965  s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
966  if (!s->thread_context[i])
967  goto fail;
968  }
969  if (init_duplicate_context(s->thread_context[i]) < 0)
970  goto fail;
971  s->thread_context[i]->start_mb_y =
972  (s->mb_height * (i) + nb_slices / 2) / nb_slices;
973  s->thread_context[i]->end_mb_y =
974  (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
975  }
976  } else {
977  if (init_duplicate_context(s) < 0)
978  goto fail;
979  s->start_mb_y = 0;
980  s->end_mb_y = s->mb_height;
981  }
982  s->slice_context_count = nb_slices;
983 // }
984 
985  return 0;
986  fail:
988  return -1;
989 }
990 
991 /**
992  * Frees and resets MpegEncContext fields depending on the resolution.
993  * Is used during resolution changes to avoid a full reinitialization of the
994  * codec.
995  */
997 {
998  int i, j, k;
999 
1000  av_freep(&s->mb_type);
1007  s->p_mv_table = NULL;
1008  s->b_forw_mv_table = NULL;
1009  s->b_back_mv_table = NULL;
1012  s->b_direct_mv_table = NULL;
1013  for (i = 0; i < 2; i++) {
1014  for (j = 0; j < 2; j++) {
1015  for (k = 0; k < 2; k++) {
1016  av_freep(&s->b_field_mv_table_base[i][j][k]);
1017  s->b_field_mv_table[i][j][k] = NULL;
1018  }
1019  av_freep(&s->b_field_select_table[i][j]);
1020  av_freep(&s->p_field_mv_table_base[i][j]);
1021  s->p_field_mv_table[i][j] = NULL;
1022  }
1024  }
1025 
1026  av_freep(&s->dc_val_base);
1028  av_freep(&s->mbintra_table);
1029  av_freep(&s->cbp_table);
1030  av_freep(&s->pred_dir_table);
1031 
1032  av_freep(&s->mbskip_table);
1033 
1035  av_freep(&s->er.er_temp_buffer);
1036  av_freep(&s->mb_index2xy);
1037  av_freep(&s->lambda_table);
1038 
1039  av_freep(&s->cplx_tab);
1040  av_freep(&s->bits_tab);
1041 
1042  s->linesize = s->uvlinesize = 0;
1043 }
1044 
1046 {
1047  int i, err = 0;
1048 
1049  if (!s->context_initialized)
1050  return AVERROR(EINVAL);
1051 
1052  if (s->slice_context_count > 1) {
1053  for (i = 0; i < s->slice_context_count; i++) {
1055  }
1056  for (i = 1; i < s->slice_context_count; i++) {
1057  av_freep(&s->thread_context[i]);
1058  }
1059  } else
1061 
1062  free_context_frame(s);
1063 
1064  if (s->picture)
1065  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1066  s->picture[i].needs_realloc = 1;
1067  }
1068 
1069  s->last_picture_ptr =
1070  s->next_picture_ptr =
1072 
1073  // init
1075  s->mb_height = (s->height + 31) / 32 * 2;
1076  else
1077  s->mb_height = (s->height + 15) / 16;
1078 
1079  if ((s->width || s->height) &&
1080  (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1081  goto fail;
1082 
1083  if ((err = init_context_frame(s)))
1084  goto fail;
1085 
1086  memset(s->thread_context, 0, sizeof(s->thread_context));
1087  s->thread_context[0] = s;
1088 
1089  if (s->width && s->height) {
1090  int nb_slices = s->slice_context_count;
1091  if (nb_slices > 1) {
1092  for (i = 0; i < nb_slices; i++) {
1093  if (i) {
1094  s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1095  if (!s->thread_context[i]) {
1096  err = AVERROR(ENOMEM);
1097  goto fail;
1098  }
1099  }
1100  if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1101  goto fail;
1102  s->thread_context[i]->start_mb_y =
1103  (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1104  s->thread_context[i]->end_mb_y =
1105  (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1106  }
1107  } else {
1108  err = init_duplicate_context(s);
1109  if (err < 0)
1110  goto fail;
1111  s->start_mb_y = 0;
1112  s->end_mb_y = s->mb_height;
1113  }
1114  s->slice_context_count = nb_slices;
1115  }
1116 
1117  return 0;
1118  fail:
1119  ff_mpv_common_end(s);
1120  return err;
1121 }
1122 
1123 /* init common structure for both encoder and decoder */
1125 {
1126  int i;
1127 
1128  if (!s)
1129  return ;
1130 
1131  if (s->slice_context_count > 1) {
1132  for (i = 0; i < s->slice_context_count; i++) {
1134  }
1135  for (i = 1; i < s->slice_context_count; i++) {
1136  av_freep(&s->thread_context[i]);
1137  }
1138  s->slice_context_count = 1;
1139  } else free_duplicate_context(s);
1140 
1142  s->parse_context.buffer_size = 0;
1143 
1146 
1147  if (s->picture) {
1148  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1150  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1151  av_frame_free(&s->picture[i].f);
1152  }
1153  }
1154  av_freep(&s->picture);
1167 
1168  free_context_frame(s);
1169 
1170  s->context_initialized = 0;
1171  s->last_picture_ptr =
1172  s->next_picture_ptr =
1174  s->linesize = s->uvlinesize = 0;
1175 }
1176 
1177 
1178 static void gray_frame(AVFrame *frame)
1179 {
1180  int i, h_chroma_shift, v_chroma_shift;
1181 
1182  av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1183 
1184  for(i=0; i<frame->height; i++)
1185  memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1186  for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1187  memset(frame->data[1] + frame->linesize[1]*i,
1188  0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1189  memset(frame->data[2] + frame->linesize[2]*i,
1190  0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1191  }
1192 }
1193 
1194 /**
1195  * generic function called after decoding
1196  * the header and before a frame is decoded.
1197  */
1199 {
1200  int i, ret;
1201  Picture *pic;
1202  s->mb_skipped = 0;
1203 
1204  if (!ff_thread_can_start_frame(avctx)) {
1205  av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1206  return -1;
1207  }
1208 
1209  /* mark & release old frames */
1210  if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1212  s->last_picture_ptr->f->buf[0]) {
1214  }
1215 
1216  /* release forgotten pictures */
1217  /* if (MPEG-124 / H.263) */
1218  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1219  if (&s->picture[i] != s->last_picture_ptr &&
1220  &s->picture[i] != s->next_picture_ptr &&
1221  s->picture[i].reference && !s->picture[i].needs_realloc) {
1222  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1223  }
1224  }
1225 
1229 
1230  /* release non reference frames */
1231  for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1232  if (!s->picture[i].reference)
1233  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1234  }
1235 
1236  if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1237  // we already have an unused image
1238  // (maybe it was set before reading the header)
1239  pic = s->current_picture_ptr;
1240  } else {
1241  i = ff_find_unused_picture(s->avctx, s->picture, 0);
1242  if (i < 0) {
1243  av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1244  return i;
1245  }
1246  pic = &s->picture[i];
1247  }
1248 
1249  pic->reference = 0;
1250  if (!s->droppable) {
1251  if (s->pict_type != AV_PICTURE_TYPE_B)
1252  pic->reference = 3;
1253  }
1254 
1256 
1257  if (alloc_picture(s, pic, 0) < 0)
1258  return -1;
1259 
1260  s->current_picture_ptr = pic;
1261  // FIXME use only the vars from current_pic
1263  if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1265  if (s->picture_structure != PICT_FRAME)
1268  }
1272 
1274  // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1275  // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1277 
1278  if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1279  s->current_picture_ptr)) < 0)
1280  return ret;
1281 
1282  if (s->pict_type != AV_PICTURE_TYPE_B) {
1284  if (!s->droppable)
1286  }
1287  ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1289  s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1290  s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1292  s->pict_type, s->droppable);
1293 
1294  if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1295  (s->pict_type != AV_PICTURE_TYPE_I)) {
1296  int h_chroma_shift, v_chroma_shift;
1298  &h_chroma_shift, &v_chroma_shift);
1300  av_log(avctx, AV_LOG_DEBUG,
1301  "allocating dummy last picture for B frame\n");
1302  else if (s->pict_type != AV_PICTURE_TYPE_I)
1303  av_log(avctx, AV_LOG_ERROR,
1304  "warning: first frame is no keyframe\n");
1305 
1306  /* Allocate a dummy frame */
1307  i = ff_find_unused_picture(s->avctx, s->picture, 0);
1308  if (i < 0) {
1309  av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1310  return i;
1311  }
1312  s->last_picture_ptr = &s->picture[i];
1313 
1314  s->last_picture_ptr->reference = 3;
1315  s->last_picture_ptr->f->key_frame = 0;
1317 
1318  if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1319  s->last_picture_ptr = NULL;
1320  return -1;
1321  }
1322 
1323  if (!avctx->hwaccel) {
1324  for(i=0; i<avctx->height; i++)
1325  memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1326  0x80, avctx->width);
1327  if (s->last_picture_ptr->f->data[2]) {
1328  for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1329  memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1330  0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1331  memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1332  0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1333  }
1334  }
1335 
1337  for(i=0; i<avctx->height; i++)
1338  memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1339  }
1340  }
1341 
1342  ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1343  ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1344  }
1345  if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1346  s->pict_type == AV_PICTURE_TYPE_B) {
1347  /* Allocate a dummy frame */
1348  i = ff_find_unused_picture(s->avctx, s->picture, 0);
1349  if (i < 0) {
1350  av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1351  return i;
1352  }
1353  s->next_picture_ptr = &s->picture[i];
1354 
1355  s->next_picture_ptr->reference = 3;
1356  s->next_picture_ptr->f->key_frame = 0;
1358 
1359  if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1360  s->next_picture_ptr = NULL;
1361  return -1;
1362  }
1363  ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1364  ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1365  }
1366 
1367 #if 0 // BUFREF-FIXME
1368  memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1369  memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1370 #endif
1371  if (s->last_picture_ptr) {
1372  if (s->last_picture_ptr->f->buf[0] &&
1373  (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1374  s->last_picture_ptr)) < 0)
1375  return ret;
1376  }
1377  if (s->next_picture_ptr) {
1378  if (s->next_picture_ptr->f->buf[0] &&
1379  (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1380  s->next_picture_ptr)) < 0)
1381  return ret;
1382  }
1383 
1385  s->last_picture_ptr->f->buf[0]));
1386 
1387  if (s->picture_structure!= PICT_FRAME) {
1388  int i;
1389  for (i = 0; i < 4; i++) {
1391  s->current_picture.f->data[i] +=
1392  s->current_picture.f->linesize[i];
1393  }
1394  s->current_picture.f->linesize[i] *= 2;
1395  s->last_picture.f->linesize[i] *= 2;
1396  s->next_picture.f->linesize[i] *= 2;
1397  }
1398  }
1399 
1400  /* set dequantizer, we can't do it during init as
1401  * it might change for MPEG-4 and we can't do it in the header
1402  * decode as init is not called for MPEG-4 there yet */
1403  if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1406  } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1409  } else {
1412  }
1413 
1414  if (s->avctx->debug & FF_DEBUG_NOMC) {
1416  }
1417 
1418  return 0;
1419 }
1420 
1421 /* called after a frame has been decoded. */
1423 {
1424  emms_c();
1425 
1426  if (s->current_picture.reference)
1428 }
1429 
1431 {
1433  p->qscale_table, p->motion_val, &s->low_delay,
1434  s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1435 }
1436 
1438 {
1440  int offset = 2*s->mb_stride + 1;
1441  if(!ref)
1442  return AVERROR(ENOMEM);
1443  av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1444  ref->size -= offset;
1445  ref->data += offset;
1446  return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1447 }
1448 
1450  uint8_t *dest, uint8_t *src,
1451  int field_based, int field_select,
1452  int src_x, int src_y,
1453  int width, int height, ptrdiff_t stride,
1454  int h_edge_pos, int v_edge_pos,
1455  int w, int h, h264_chroma_mc_func *pix_op,
1456  int motion_x, int motion_y)
1457 {
1458  const int lowres = s->avctx->lowres;
1459  const int op_index = FFMIN(lowres, 3);
1460  const int s_mask = (2 << lowres) - 1;
1461  int emu = 0;
1462  int sx, sy;
1463 
1464  if (s->quarter_sample) {
1465  motion_x /= 2;
1466  motion_y /= 2;
1467  }
1468 
1469  sx = motion_x & s_mask;
1470  sy = motion_y & s_mask;
1471  src_x += motion_x >> lowres + 1;
1472  src_y += motion_y >> lowres + 1;
1473 
1474  src += src_y * stride + src_x;
1475 
1476  if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1477  (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1479  s->linesize, s->linesize,
1480  w + 1, (h + 1) << field_based,
1481  src_x, src_y << field_based,
1482  h_edge_pos, v_edge_pos);
1483  src = s->sc.edge_emu_buffer;
1484  emu = 1;
1485  }
1486 
1487  sx = (sx << 2) >> lowres;
1488  sy = (sy << 2) >> lowres;
1489  if (field_select)
1490  src += s->linesize;
1491  pix_op[op_index](dest, src, stride, h, sx, sy);
1492  return emu;
1493 }
1494 
1495 /* apply one mpeg motion vector to the three components */
1497  uint8_t *dest_y,
1498  uint8_t *dest_cb,
1499  uint8_t *dest_cr,
1500  int field_based,
1501  int bottom_field,
1502  int field_select,
1503  uint8_t **ref_picture,
1504  h264_chroma_mc_func *pix_op,
1505  int motion_x, int motion_y,
1506  int h, int mb_y)
1507 {
1508  uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1509  int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1510  ptrdiff_t uvlinesize, linesize;
1511  const int lowres = s->avctx->lowres;
1512  const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1513  const int block_s = 8>>lowres;
1514  const int s_mask = (2 << lowres) - 1;
1515  const int h_edge_pos = s->h_edge_pos >> lowres;
1516  const int v_edge_pos = s->v_edge_pos >> lowres;
1517  linesize = s->current_picture.f->linesize[0] << field_based;
1518  uvlinesize = s->current_picture.f->linesize[1] << field_based;
1519 
1520  // FIXME obviously not perfect but qpel will not work in lowres anyway
1521  if (s->quarter_sample) {
1522  motion_x /= 2;
1523  motion_y /= 2;
1524  }
1525 
1526  if(field_based){
1527  motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1528  }
1529 
1530  sx = motion_x & s_mask;
1531  sy = motion_y & s_mask;
1532  src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1533  src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1534 
1535  if (s->out_format == FMT_H263) {
1536  uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1537  uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1538  uvsrc_x = src_x >> 1;
1539  uvsrc_y = src_y >> 1;
1540  } else if (s->out_format == FMT_H261) {
1541  // even chroma mv's are full pel in H261
1542  mx = motion_x / 4;
1543  my = motion_y / 4;
1544  uvsx = (2 * mx) & s_mask;
1545  uvsy = (2 * my) & s_mask;
1546  uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1547  uvsrc_y = mb_y * block_s + (my >> lowres);
1548  } else {
1549  if(s->chroma_y_shift){
1550  mx = motion_x / 2;
1551  my = motion_y / 2;
1552  uvsx = mx & s_mask;
1553  uvsy = my & s_mask;
1554  uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1555  uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1556  } else {
1557  if(s->chroma_x_shift){
1558  //Chroma422
1559  mx = motion_x / 2;
1560  uvsx = mx & s_mask;
1561  uvsy = motion_y & s_mask;
1562  uvsrc_y = src_y;
1563  uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1564  } else {
1565  //Chroma444
1566  uvsx = motion_x & s_mask;
1567  uvsy = motion_y & s_mask;
1568  uvsrc_x = src_x;
1569  uvsrc_y = src_y;
1570  }
1571  }
1572  }
1573 
1574  ptr_y = ref_picture[0] + src_y * linesize + src_x;
1575  ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1576  ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1577 
1578  if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1579  (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1580  s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1581  linesize >> field_based, linesize >> field_based,
1582  17, 17 + field_based,
1583  src_x, src_y << field_based, h_edge_pos,
1584  v_edge_pos);
1585  ptr_y = s->sc.edge_emu_buffer;
1586  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1587  uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1588  uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1589  if (s->workaround_bugs & FF_BUG_IEDGE)
1590  vbuf -= s->uvlinesize;
1591  s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1592  uvlinesize >> field_based, uvlinesize >> field_based,
1593  9, 9 + field_based,
1594  uvsrc_x, uvsrc_y << field_based,
1595  h_edge_pos >> 1, v_edge_pos >> 1);
1596  s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1597  uvlinesize >> field_based,uvlinesize >> field_based,
1598  9, 9 + field_based,
1599  uvsrc_x, uvsrc_y << field_based,
1600  h_edge_pos >> 1, v_edge_pos >> 1);
1601  ptr_cb = ubuf;
1602  ptr_cr = vbuf;
1603  }
1604  }
1605 
1606  // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1607  if (bottom_field) {
1608  dest_y += s->linesize;
1609  dest_cb += s->uvlinesize;
1610  dest_cr += s->uvlinesize;
1611  }
1612 
1613  if (field_select) {
1614  ptr_y += s->linesize;
1615  ptr_cb += s->uvlinesize;
1616  ptr_cr += s->uvlinesize;
1617  }
1618 
1619  sx = (sx << 2) >> lowres;
1620  sy = (sy << 2) >> lowres;
1621  pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1622 
1623  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1624  int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1625  uvsx = (uvsx << 2) >> lowres;
1626  uvsy = (uvsy << 2) >> lowres;
1627  if (hc) {
1628  pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1629  pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1630  }
1631  }
1632  // FIXME h261 lowres loop filter
1633 }
1634 
1636  uint8_t *dest_cb, uint8_t *dest_cr,
1637  uint8_t **ref_picture,
1638  h264_chroma_mc_func * pix_op,
1639  int mx, int my)
1640 {
1641  const int lowres = s->avctx->lowres;
1642  const int op_index = FFMIN(lowres, 3);
1643  const int block_s = 8 >> lowres;
1644  const int s_mask = (2 << lowres) - 1;
1645  const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1646  const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1647  int emu = 0, src_x, src_y, sx, sy;
1648  ptrdiff_t offset;
1649  uint8_t *ptr;
1650 
1651  if (s->quarter_sample) {
1652  mx /= 2;
1653  my /= 2;
1654  }
1655 
1656  /* In case of 8X8, we construct a single chroma motion vector
1657  with a special rounding */
1658  mx = ff_h263_round_chroma(mx);
1659  my = ff_h263_round_chroma(my);
1660 
1661  sx = mx & s_mask;
1662  sy = my & s_mask;
1663  src_x = s->mb_x * block_s + (mx >> lowres + 1);
1664  src_y = s->mb_y * block_s + (my >> lowres + 1);
1665 
1666  offset = src_y * s->uvlinesize + src_x;
1667  ptr = ref_picture[1] + offset;
1668  if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1669  (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1671  s->uvlinesize, s->uvlinesize,
1672  9, 9,
1673  src_x, src_y, h_edge_pos, v_edge_pos);
1674  ptr = s->sc.edge_emu_buffer;
1675  emu = 1;
1676  }
1677  sx = (sx << 2) >> lowres;
1678  sy = (sy << 2) >> lowres;
1679  pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1680 
1681  ptr = ref_picture[2] + offset;
1682  if (emu) {
1684  s->uvlinesize, s->uvlinesize,
1685  9, 9,
1686  src_x, src_y, h_edge_pos, v_edge_pos);
1687  ptr = s->sc.edge_emu_buffer;
1688  }
1689  pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1690 }
1691 
1692 /**
1693  * motion compensation of a single macroblock
1694  * @param s context
1695  * @param dest_y luma destination pointer
1696  * @param dest_cb chroma cb/u destination pointer
1697  * @param dest_cr chroma cr/v destination pointer
1698  * @param dir direction (0->forward, 1->backward)
1699  * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1700  * @param pix_op halfpel motion compensation function (average or put normally)
1701  * the motion vectors are taken from s->mv and the MV type from s->mv_type
1702  */
1703 static inline void MPV_motion_lowres(MpegEncContext *s,
1704  uint8_t *dest_y, uint8_t *dest_cb,
1705  uint8_t *dest_cr,
1706  int dir, uint8_t **ref_picture,
1707  h264_chroma_mc_func *pix_op)
1708 {
1709  int mx, my;
1710  int mb_x, mb_y, i;
1711  const int lowres = s->avctx->lowres;
1712  const int block_s = 8 >>lowres;
1713 
1714  mb_x = s->mb_x;
1715  mb_y = s->mb_y;
1716 
1717  switch (s->mv_type) {
1718  case MV_TYPE_16X16:
1719  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1720  0, 0, 0,
1721  ref_picture, pix_op,
1722  s->mv[dir][0][0], s->mv[dir][0][1],
1723  2 * block_s, mb_y);
1724  break;
1725  case MV_TYPE_8X8:
1726  mx = 0;
1727  my = 0;
1728  for (i = 0; i < 4; i++) {
1729  hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1730  s->linesize) * block_s,
1731  ref_picture[0], 0, 0,
1732  (2 * mb_x + (i & 1)) * block_s,
1733  (2 * mb_y + (i >> 1)) * block_s,
1734  s->width, s->height, s->linesize,
1735  s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1736  block_s, block_s, pix_op,
1737  s->mv[dir][i][0], s->mv[dir][i][1]);
1738 
1739  mx += s->mv[dir][i][0];
1740  my += s->mv[dir][i][1];
1741  }
1742 
1743  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1744  chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1745  pix_op, mx, my);
1746  break;
1747  case MV_TYPE_FIELD:
1748  if (s->picture_structure == PICT_FRAME) {
1749  /* top field */
1750  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1751  1, 0, s->field_select[dir][0],
1752  ref_picture, pix_op,
1753  s->mv[dir][0][0], s->mv[dir][0][1],
1754  block_s, mb_y);
1755  /* bottom field */
1756  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1757  1, 1, s->field_select[dir][1],
1758  ref_picture, pix_op,
1759  s->mv[dir][1][0], s->mv[dir][1][1],
1760  block_s, mb_y);
1761  } else {
1762  if (s->picture_structure != s->field_select[dir][0] + 1 &&
1763  s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1764  ref_picture = s->current_picture_ptr->f->data;
1765 
1766  }
1767  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1768  0, 0, s->field_select[dir][0],
1769  ref_picture, pix_op,
1770  s->mv[dir][0][0],
1771  s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1772  }
1773  break;
1774  case MV_TYPE_16X8:
1775  for (i = 0; i < 2; i++) {
1776  uint8_t **ref2picture;
1777 
1778  if (s->picture_structure == s->field_select[dir][i] + 1 ||
1779  s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1780  ref2picture = ref_picture;
1781  } else {
1782  ref2picture = s->current_picture_ptr->f->data;
1783  }
1784 
1785  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1786  0, 0, s->field_select[dir][i],
1787  ref2picture, pix_op,
1788  s->mv[dir][i][0], s->mv[dir][i][1] +
1789  2 * block_s * i, block_s, mb_y >> 1);
1790 
1791  dest_y += 2 * block_s * s->linesize;
1792  dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1793  dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1794  }
1795  break;
1796  case MV_TYPE_DMV:
1797  if (s->picture_structure == PICT_FRAME) {
1798  for (i = 0; i < 2; i++) {
1799  int j;
1800  for (j = 0; j < 2; j++) {
1801  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1802  1, j, j ^ i,
1803  ref_picture, pix_op,
1804  s->mv[dir][2 * i + j][0],
1805  s->mv[dir][2 * i + j][1],
1806  block_s, mb_y);
1807  }
1809  }
1810  } else {
1811  for (i = 0; i < 2; i++) {
1812  mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1813  0, 0, s->picture_structure != i + 1,
1814  ref_picture, pix_op,
1815  s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1816  2 * block_s, mb_y >> 1);
1817 
1818  // after put we make avg of the same block
1820 
1821  // opposite parity is always in the same
1822  // frame if this is second field
1823  if (!s->first_field) {
1824  ref_picture = s->current_picture_ptr->f->data;
1825  }
1826  }
1827  }
1828  break;
1829  default:
1830  av_assert2(0);
1831  }
1832 }
1833 
1834 /**
1835  * find the lowest MB row referenced in the MVs
1836  */
1838 {
1839  int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1840  int my, off, i, mvs;
1841 
1842  if (s->picture_structure != PICT_FRAME || s->mcsel)
1843  goto unhandled;
1844 
1845  switch (s->mv_type) {
1846  case MV_TYPE_16X16:
1847  mvs = 1;
1848  break;
1849  case MV_TYPE_16X8:
1850  mvs = 2;
1851  break;
1852  case MV_TYPE_8X8:
1853  mvs = 4;
1854  break;
1855  default:
1856  goto unhandled;
1857  }
1858 
1859  for (i = 0; i < mvs; i++) {
1860  my = s->mv[dir][i][1];
1861  my_max = FFMAX(my_max, my);
1862  my_min = FFMIN(my_min, my);
1863  }
1864 
1865  off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1866 
1867  return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1868 unhandled:
1869  return s->mb_height-1;
1870 }
1871 
1872 /* put block[] to dest[] */
1873 static inline void put_dct(MpegEncContext *s,
1874  int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1875 {
1876  s->dct_unquantize_intra(s, block, i, qscale);
1877  s->idsp.idct_put(dest, line_size, block);
1878 }
1879 
1880 /* add block[] to dest[] */
1881 static inline void add_dct(MpegEncContext *s,
1882  int16_t *block, int i, uint8_t *dest, int line_size)
1883 {
1884  if (s->block_last_index[i] >= 0) {
1885  s->idsp.idct_add(dest, line_size, block);
1886  }
1887 }
1888 
1889 static inline void add_dequant_dct(MpegEncContext *s,
1890  int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1891 {
1892  if (s->block_last_index[i] >= 0) {
1893  s->dct_unquantize_inter(s, block, i, qscale);
1894 
1895  s->idsp.idct_add(dest, line_size, block);
1896  }
1897 }
1898 
1899 /**
1900  * Clean dc, ac, coded_block for the current non-intra MB.
1901  */
1903 {
1904  int wrap = s->b8_stride;
1905  int xy = s->block_index[0];
1906 
1907  s->dc_val[0][xy ] =
1908  s->dc_val[0][xy + 1 ] =
1909  s->dc_val[0][xy + wrap] =
1910  s->dc_val[0][xy + 1 + wrap] = 1024;
1911  /* ac pred */
1912  memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1913  memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1914  if (s->msmpeg4_version>=3) {
1915  s->coded_block[xy ] =
1916  s->coded_block[xy + 1 ] =
1917  s->coded_block[xy + wrap] =
1918  s->coded_block[xy + 1 + wrap] = 0;
1919  }
1920  /* chroma */
1921  wrap = s->mb_stride;
1922  xy = s->mb_x + s->mb_y * wrap;
1923  s->dc_val[1][xy] =
1924  s->dc_val[2][xy] = 1024;
1925  /* ac pred */
1926  memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1927  memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1928 
1929  s->mbintra_table[xy]= 0;
1930 }
1931 
1932 /* generic function called after a macroblock has been parsed by the
1933  decoder or after it has been encoded by the encoder.
1934 
1935  Important variables used:
1936  s->mb_intra : true if intra macroblock
1937  s->mv_dir : motion vector direction
1938  s->mv_type : motion vector type
1939  s->mv : motion vector
1940  s->interlaced_dct : true if interlaced dct used (mpeg2)
1941  */
1942 static av_always_inline
1944  int lowres_flag, int is_mpeg12)
1945 {
1946  const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1947 
1948  if (CONFIG_XVMC &&
1949  s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1950  s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1951  return;
1952  }
1953 
1954  if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1955  /* print DCT coefficients */
1956  int i,j;
1957  av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1958  for(i=0; i<6; i++){
1959  for(j=0; j<64; j++){
1960  av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1961  block[i][s->idsp.idct_permutation[j]]);
1962  }
1963  av_log(s->avctx, AV_LOG_DEBUG, "\n");
1964  }
1965  }
1966 
1967  s->current_picture.qscale_table[mb_xy] = s->qscale;
1968 
1969  /* update DC predictors for P macroblocks */
1970  if (!s->mb_intra) {
1971  if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1972  if(s->mbintra_table[mb_xy])
1974  } else {
1975  s->last_dc[0] =
1976  s->last_dc[1] =
1977  s->last_dc[2] = 128 << s->intra_dc_precision;
1978  }
1979  }
1980  else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1981  s->mbintra_table[mb_xy]=1;
1982 
1984  !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1985  s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1986  uint8_t *dest_y, *dest_cb, *dest_cr;
1987  int dct_linesize, dct_offset;
1988  op_pixels_func (*op_pix)[4];
1989  qpel_mc_func (*op_qpix)[16];
1990  const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1991  const int uvlinesize = s->current_picture.f->linesize[1];
1992  const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1993  const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1994 
1995  /* avoid copy if macroblock skipped in last frame too */
1996  /* skip only during decoding as we might trash the buffers during encoding a bit */
1997  if(!s->encoding){
1998  uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1999 
2000  if (s->mb_skipped) {
2001  s->mb_skipped= 0;
2003  *mbskip_ptr = 1;
2004  } else if(!s->current_picture.reference) {
2005  *mbskip_ptr = 1;
2006  } else{
2007  *mbskip_ptr = 0; /* not skipped */
2008  }
2009  }
2010 
2011  dct_linesize = linesize << s->interlaced_dct;
2012  dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2013 
2014  if(readable){
2015  dest_y= s->dest[0];
2016  dest_cb= s->dest[1];
2017  dest_cr= s->dest[2];
2018  }else{
2019  dest_y = s->sc.b_scratchpad;
2020  dest_cb= s->sc.b_scratchpad+16*linesize;
2021  dest_cr= s->sc.b_scratchpad+32*linesize;
2022  }
2023 
2024  if (!s->mb_intra) {
2025  /* motion handling */
2026  /* decoding or more than one mb_type (MC was already done otherwise) */
2027  if(!s->encoding){
2028 
2029  if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2030  if (s->mv_dir & MV_DIR_FORWARD) {
2032  lowest_referenced_row(s, 0),
2033  0);
2034  }
2035  if (s->mv_dir & MV_DIR_BACKWARD) {
2037  lowest_referenced_row(s, 1),
2038  0);
2039  }
2040  }
2041 
2042  if(lowres_flag){
2044 
2045  if (s->mv_dir & MV_DIR_FORWARD) {
2046  MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2048  }
2049  if (s->mv_dir & MV_DIR_BACKWARD) {
2050  MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2051  }
2052  }else{
2053  op_qpix = s->me.qpel_put;
2054  if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2055  op_pix = s->hdsp.put_pixels_tab;
2056  }else{
2057  op_pix = s->hdsp.put_no_rnd_pixels_tab;
2058  }
2059  if (s->mv_dir & MV_DIR_FORWARD) {
2060  ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2061  op_pix = s->hdsp.avg_pixels_tab;
2062  op_qpix= s->me.qpel_avg;
2063  }
2064  if (s->mv_dir & MV_DIR_BACKWARD) {
2065  ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2066  }
2067  }
2068  }
2069 
2070  /* skip dequant / idct if we are really late ;) */
2071  if(s->avctx->skip_idct){
2074  || s->avctx->skip_idct >= AVDISCARD_ALL)
2075  goto skip_idct;
2076  }
2077 
2078  /* add dct residue */
2080  || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2081  add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2082  add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2083  add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2084  add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2085 
2086  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2087  if (s->chroma_y_shift){
2088  add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2089  add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2090  }else{
2091  dct_linesize >>= 1;
2092  dct_offset >>=1;
2093  add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2094  add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2095  add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2096  add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2097  }
2098  }
2099  } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2100  add_dct(s, block[0], 0, dest_y , dct_linesize);
2101  add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2102  add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2103  add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2104 
2105  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2106  if(s->chroma_y_shift){//Chroma420
2107  add_dct(s, block[4], 4, dest_cb, uvlinesize);
2108  add_dct(s, block[5], 5, dest_cr, uvlinesize);
2109  }else{
2110  //chroma422
2111  dct_linesize = uvlinesize << s->interlaced_dct;
2112  dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2113 
2114  add_dct(s, block[4], 4, dest_cb, dct_linesize);
2115  add_dct(s, block[5], 5, dest_cr, dct_linesize);
2116  add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2117  add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2118  if(!s->chroma_x_shift){//Chroma444
2119  add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2120  add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2121  add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2122  add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2123  }
2124  }
2125  }//fi gray
2126  }
2127  else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2128  ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2129  }
2130  } else {
2131  /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2132  TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2133  if (s->avctx->bits_per_raw_sample > 8){
2134  const int act_block_size = block_size * 2;
2135  s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
2136  s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2137  s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
2138  s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2139 
2140  dct_linesize = uvlinesize << s->interlaced_dct;
2141  dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2142 
2143  s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
2144  s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
2145  s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2146  s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2147  if(!s->chroma_x_shift){//Chroma444
2148  s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
2149  s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
2150  s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2151  s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2152  }
2153  }
2154  /* dct only in intra block */
2156  put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2157  put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2158  put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2159  put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2160 
2161  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2162  if(s->chroma_y_shift){
2163  put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2164  put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2165  }else{
2166  dct_offset >>=1;
2167  dct_linesize >>=1;
2168  put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2169  put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2170  put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2171  put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2172  }
2173  }
2174  }else{
2175  s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2176  s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2177  s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2178  s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2179 
2180  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2181  if(s->chroma_y_shift){
2182  s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2183  s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2184  }else{
2185 
2186  dct_linesize = uvlinesize << s->interlaced_dct;
2187  dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2188 
2189  s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2190  s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2191  s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2192  s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2193  if(!s->chroma_x_shift){//Chroma444
2194  s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2195  s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2196  s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2197  s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2198  }
2199  }
2200  }//gray
2201  }
2202  }
2203 skip_idct:
2204  if(!readable){
2205  s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2206  if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2207  s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2208  s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2209  }
2210  }
2211  }
2212 }
2213 
2215 {
2216 #if !CONFIG_SMALL
2217  if(s->out_format == FMT_MPEG1) {
2218  if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2219  else mpv_reconstruct_mb_internal(s, block, 0, 1);
2220  } else
2221 #endif
2222  if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2223  else mpv_reconstruct_mb_internal(s, block, 0, 0);
2224 }
2225 
2227 {
2230  s->first_field, s->low_delay);
2231 }
2232 
2233 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2234  const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2235  const int uvlinesize = s->current_picture.f->linesize[1];
2236  const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2237  const int height_of_mb = 4 - s->avctx->lowres;
2238 
2239  s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2240  s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2241  s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2242  s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2243  s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2244  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;
2245  //block_index is not used by mpeg2, so it is not affected by chroma_format
2246 
2247  s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
2248  s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2249  s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2250 
2252  {
2253  if(s->picture_structure==PICT_FRAME){
2254  s->dest[0] += s->mb_y * linesize << height_of_mb;
2255  s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2256  s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2257  }else{
2258  s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
2259  s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2260  s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2262  }
2263  }
2264 }
2265 
2267  int i;
2268  MpegEncContext *s = avctx->priv_data;
2269 
2270  if (!s || !s->picture)
2271  return;
2272 
2273  for (i = 0; i < MAX_PICTURE_COUNT; i++)
2274  ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2276 
2280 
2281  s->mb_x= s->mb_y= 0;
2282  s->closed_gop= 0;
2283 
2284  s->parse_context.state= -1;
2286  s->parse_context.overread= 0;
2288  s->parse_context.index= 0;
2289  s->parse_context.last_index= 0;
2290  s->bitstream_buffer_size=0;
2291  s->pp_time=0;
2292 }
2293 
2294 /**
2295  * set qscale and update qscale dependent variables.
2296  */
2297 void ff_set_qscale(MpegEncContext * s, int qscale)
2298 {
2299  if (qscale < 1)
2300  qscale = 1;
2301  else if (qscale > 31)
2302  qscale = 31;
2303 
2304  s->qscale = qscale;
2305  s->chroma_qscale= s->chroma_qscale_table[qscale];
2306 
2307  s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2309 }
2310 
2312 {
2315 }
int last_time_base
Definition: mpegvideo.h:388
int bitstream_buffer_size
Definition: mpegvideo.h:416
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:897
int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
Definition: frame.c:54
IDCTDSPContext idsp
Definition: mpegvideo.h:230
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:358
int ff_thread_can_start_frame(AVCodecContext *avctx)
const struct AVCodec * codec
Definition: avcodec.h:1529
int16_t(* b_bidir_back_mv_table_base)[2]
Definition: mpegvideo.h:244
av_cold void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:43
discard all frames except keyframes
Definition: avcodec.h:795
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:2233
int picture_number
Definition: mpegvideo.h:127
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:93
av_cold void ff_mpegvideodsp_init(MpegVideoDSPContext *c)
Definition: mpegvideodsp.c:110
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:532
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
int16_t(* p_mv_table)[2]
MV table (1MV per MB) P-frame encoding.
Definition: mpegvideo.h:248
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:153
#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:188
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:1707
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:68
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:1943
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
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:1635
uint8_t * coded_block_base
Definition: mpegvideo.h:191
void(* h264_chroma_mc_func)(uint8_t *dst, uint8_t *src, ptrdiff_t srcStride, int h, int x, int y)
Definition: h264chroma.h:25
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:410
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:154
int16_t(*[3] ac_val)[16]
used for MPEG-4 AC prediction, all 3 arrays must be continuous
Definition: mpegvideo.h:194
MJPEG encoder.
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:132
h264_chroma_mc_func put_h264_chroma_pixels_tab[4]
Definition: h264chroma.h:28
#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:1178
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:438
int needs_realloc
Picture needs to be reallocated (eg due to a frame size change)
Definition: mpegpicture.h:85
uint8_t * bitstream_buffer
Definition: mpegvideo.h:415
enum AVCodecID codec_id
Definition: mpegvideo.h:112
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
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1729
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced P-frame encoding.
Definition: mpegvideo.h:254
int16_t(* p_mv_table_base)[2]
Definition: mpegvideo.h:240
int studio_profile
Definition: mpegvideo.h:384
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:1837
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
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:796
uint8_t permutated[64]
Definition: idctdsp.h:33
static void free_duplicate_context(MpegEncContext *s)
Definition: mpegvideo.c:413
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2743
int padding_bug_score
used to detect the VERY common padding bug in MPEG-4
Definition: mpegvideo.h:411
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.
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:133
const struct AVHWAccel * hwaccel
Hardware accelerator in use.
Definition: avcodec.h:2676
#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:51
int frame_start_found
Definition: parser.h:34
int qscale
QP.
Definition: mpegvideo.h:204
int h263_aic
Advanced INTRA Coding (AIC)
Definition: mpegvideo.h:87
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode B-frame encoding.
Definition: mpegvideo.h:250
enum AVPictureType last_picture
Definition: movenc.c:68
int chroma_x_shift
Definition: mpegvideo.h:485
int encoding
true if we are encoding (vs decoding)
Definition: mpegvideo.h:114
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:526
int field_select[2][2]
Definition: mpegvideo.h:277
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:530
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:242
#define REBASE_PICTURE(pic, new_ctx, old_ctx)
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
Definition: mpegvideo.c:434
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
Definition: mpegvideo.c:1902
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:528
const uint8_t ff_mpeg2_non_linear_qscale[32]
Definition: mpegvideodata.c:27
static int16_t block[64]
Definition: dct.c:115
#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:2226
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
int context_reinit
Definition: mpegvideo.h:561
const uint8_t ff_mpeg1_dc_scale_table[128]
Definition: mpegvideodata.c:34
int16_t * dc_val_base
Definition: mpegvideo.h:186
ScratchpadContext sc
Definition: mpegvideo.h:202
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:189
#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:104
#define f(width, name)
Definition: cbs_vp9.c:255
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1045
int noise_reduction
Definition: mpegvideo.h:579
void ff_mpv_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Definition: mpegvideo.h:200
Multithreading support functions.
int frame_skip_threshold
Definition: mpegvideo.h:573
qpel_mc_func(* qpel_put)[16]
Definition: motion_est.h:91
void ff_free_picture_tables(Picture *pic)
Definition: mpegpicture.c:460
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:490
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:180
int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
Definition: mpegpicture.c:446
int intra_dc_precision
Definition: mpegvideo.h:463
static AVFrame * frame
quarterpel DSP functions
void ff_mpv_common_init_ppc(MpegEncContext *s)
#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:251
float * cplx_tab
Definition: mpegvideo.h:557
#define ff_dlog(a,...)
void(* decode_mb)(struct MpegEncContext *s)
Called for every Macroblock in a slice.
Definition: avcodec.h:3699
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:392
static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
Definition: mpegvideo.c:350
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:365
av_cold void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:330
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:129
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2751
int mpeg4_studio_profile
Definition: idctdsp.h:99
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
Definition: mpegvideo.h:120
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:863
high precision timer, useful to profile code
int16_t(*[2][2] p_field_mv_table_base)[2]
Definition: mpegvideo.h:246
#define FF_BUG_IEDGE
Definition: avcodec.h:2564
#define av_log(a,...)
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
Definition: mpegvideo.c:2297
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:102
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:187
enum AVCodecID id
Definition: avcodec.h:3424
int h263_plus
H.263+ headers.
Definition: mpegvideo.h:109
int slice_context_count
number of used thread_contexts
Definition: mpegvideo.h:156
unsigned int buffer_size
Definition: parser.h:32
int width
Definition: frame.h:276
#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:185
static void add_dct(MpegEncContext *s, int16_t *block, int i, uint8_t *dest, int line_size)
Definition: mpegvideo.c:1881
int mb_skipped
MUST BE SET only during DECODING.
Definition: mpegvideo.h:195
int chroma_y_shift
Definition: mpegvideo.h:486
int partitioned_frame
is current frame partitioned
Definition: mpegvideo.h:405
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:202
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:2412
ERContext er
Definition: mpegvideo.h:563
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2790
int last_lambda_for[5]
last lambda for a specific pict type
Definition: mpegvideo.h:219
int reference
Definition: mpegpicture.h:87
#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
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:524
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:518
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1600
#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:1873
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
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:401
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:291
int low_delay
no reordering needed / has no B-frames
Definition: mpegvideo.h:406
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:257
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:283
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1124
#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:117
void ff_mpeg_flush(AVCodecContext *avctx)
Definition: mpegvideo.c:2266
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:126
int * lambda_table
Definition: mpegvideo.h:208
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:488
common internal API header
#define MAX_THREADS
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:282
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
Definition: hpeldsp.h:38
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, 'draw_horiz_band' is called by the libavcodec decoder to draw a horizontal band...
Definition: avcodec.h:1754
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
Definition: mpegvideo.c:1437
int progressive_frame
Definition: mpegvideo.h:488
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:301
#define UPDATE_PICTURE(pic)
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
Definition: avcodec.h:888
int top_field_first
Definition: mpegvideo.h:465
#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:2782
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
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed B-frames
Definition: mpegvideo.h:360
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:174
int width
picture width / height.
Definition: avcodec.h:1692
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:196
uint8_t w
Definition: llviddspenc.c:38
int16_t(*[2] motion_val)[2]
Definition: mpegpicture.h:53
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:184
Picture.
Definition: mpegpicture.h:45
int alternate_scan
Definition: mpegvideo.h:470
unsigned int allocated_bitstream_buffer_size
Definition: mpegvideo.h:417
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:193
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:867
#define s(width, name)
Definition: cbs_vp9.c:257
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:2783
int16_t(*[2][2][2] b_field_mv_table_base)[2]
Definition: mpegvideo.h:247
int16_t(* b_forw_mv_table_base)[2]
Definition: mpegvideo.h:241
int16_t(*[12] pblocks)[64]
Definition: mpegvideo.h:505
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:86
MotionEstContext me
Definition: mpegvideo.h:282
int frame_skip_factor
Definition: mpegvideo.h:574
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:2007
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
Definition: mpegvideo.h:198
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: mpegutils.c:103
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:490
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:664
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2771
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:293
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:491
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:291
#define MV_TYPE_16X16
1 vector for the whole mb
Definition: mpegvideo.h:266
static void clear_context(MpegEncContext *s)
Definition: mpegvideo.c:805
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:243
int coded_picture_number
picture number in bitstream order
Definition: frame.h:332
uint16_t inter_matrix[64]
Definition: mpegvideo.h:302
uint8_t * buffer
Definition: parser.h:29
struct MpegEncContext * thread_context[MAX_THREADS]
Definition: mpegvideo.h:155
Libavcodec external API header.
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:134
BlockDSPContext bdsp
Definition: mpegvideo.h:226
enum AVDiscard skip_idct
Skip IDCT/dequantization for selected frames.
Definition: avcodec.h:2970
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
int debug
debug
Definition: avcodec.h:2600
main external API structure.
Definition: avcodec.h:1520
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:91
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:192
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:100
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:1545
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:111
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
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
Definition: mpegvideo.c:1430
uint32_t state
contains the last few bytes in MSB order
Definition: parser.h:33
Picture * picture
main picture buffer
Definition: mpegvideo.h:136
int progressive_sequence
Definition: mpegvideo.h:456
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
int coded_height
Definition: avcodec.h:1707
ScanTable intra_h_scantable
Definition: mpegvideo.h:92
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:255
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
Definition: mpegvideo.h:199
int closed_gop
MPEG1/2 GOP is closed.
Definition: mpegvideo.h:211
int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me, ScratchpadContext *sc, int linesize)
Definition: mpegpicture.c:57
unsigned int avpriv_toupper4(unsigned int x)
Definition: utils.c:1778
#define FF_DEBUG_DCT_COEFF
Definition: avcodec.h:2612
struct AVFrame * f
Definition: mpegpicture.h:46
#define FF_MB_DECISION_RD
rate distortion
Definition: avcodec.h:2010
int context_initialized
Definition: mpegvideo.h:124
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:135
#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:1198
int f_code
forward MV resolution
Definition: mpegvideo.h:238
#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:115
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:212
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:105
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:252
static int init_context_frame(MpegEncContext *s)
Initialize and allocates MpegEncContext fields dependent on the resolution.
Definition: mpegvideo.c:684
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:256
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode B-frame encoding.
Definition: mpegvideo.h:253
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
Definition: mpegvideo.h:189
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:249
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:131
static void dct_unquantize_h263_intra_c(MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.c:209
MpegEncContext.
Definition: mpegvideo.h:81
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:183
int8_t * qscale_table
Definition: mpegpicture.h:50
struct AVCodecContext * avctx
Definition: mpegvideo.h:98
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:792
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
int
MpegVideoDSPContext mdsp
Definition: mpegvideo.h:232
int(* dct_error_sum)[64]
Definition: mpegvideo.h:332
common internal api header.
int32_t(* block32)[12][64]
Definition: mpegvideo.h:511
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:130
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
Definition: mpegvideo.c:669
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
const uint8_t ff_default_chroma_qscale_table[32]
Definition: mpegvideodata.c:21
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
uint8_t * dest[3]
Definition: mpegvideo.h:295
#define FF_ALLOC_OR_GOTO(ctx, p, size, label)
Definition: internal.h:140
static av_cold int dct_init(MpegEncContext *s)
Definition: mpegvideo.c:283
int last_pict_type
Definition: mpegvideo.h:214
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:162
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:182
Bi-dir predicted.
Definition: avutil.h:276
int index
Definition: parser.h:30
int workaround_bugs
Work around bugs in encoders which sometimes cannot be detected automatically.
Definition: avcodec.h:2549
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:190
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:462
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:520
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:775
static int lowres
Definition: ffplay.c:331
H264ChromaContext h264chroma
Definition: mpegvideo.h:228
int16_t(* blocks)[12][64]
Definition: mpegvideo.h:508
h264_chroma_mc_func avg_h264_chroma_pixels_tab[4]
Definition: h264chroma.h:29
int slices
Number of slices.
Definition: avcodec.h:2166
void * priv_data
Definition: avcodec.h:1547
#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:885
int picture_structure
Definition: mpegvideo.h:460
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:236
av_cold void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx)
Definition: idctdsp.c:238
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:370
void ff_mpv_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1422
#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:2214
uint8_t * obmc_scratchpad
Definition: mpegpicture.h:38
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:507
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:1889
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:168
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:296
#define FF_DEBUG_NOMC
Definition: avcodec.h:2625
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:1496
int chroma_qscale
chroma QP
Definition: mpegvideo.h:205
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:522
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
Definition: mpegvideo.c:641
static void free_context_frame(MpegEncContext *s)
Frees and resets MpegEncContext fields depending on the resolution.
Definition: mpegvideo.c:996
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:1449
int height
Definition: frame.h:276
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)
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
Definition: mpegvideo.h:119
ScanTable inter_scantable
if inter == intra then intra should be used to reduce the cache usage
Definition: mpegvideo.h:90
#define av_always_inline
Definition: attributes.h:39
uint8_t * temp
Definition: motion_est.h:56
#define FFSWAP(type, a, b)
Definition: common.h:99
#define stride
#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:245
int b_code
backward MV resolution for B-frames (MPEG-4)
Definition: mpegvideo.h:239
float * bits_tab
Definition: mpegvideo.h:557
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:87
void ff_mpv_report_decode_progress(MpegEncContext *s)
Definition: mpegvideo.c:2311
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:1703
#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)
Definition: internal.h:149
Predicted.
Definition: avutil.h:275
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
HpelDSPContext hdsp
Definition: mpegvideo.h:229