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>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
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.
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.
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
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/motion_vector.h"
35 #include "libavutil/timer.h"
38 #include "h264chroma.h"
43 #include "mpegutils.h"
44 #include "mpegvideo.h"
45 #include "mpegvideodata.h"
53 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
54 int16_t *block, int n, int qscale)
56 int i, level, nCoeffs;
57 const uint16_t *quant_matrix;
59 nCoeffs= s->block_last_index[n];
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];
70 level = (int)(level * qscale * quant_matrix[j]) >> 3;
71 level = (level - 1) | 1;
74 level = (int)(level * qscale * quant_matrix[j]) >> 3;
75 level = (level - 1) | 1;
82 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
83 int16_t *block, int n, int qscale)
85 int i, level, nCoeffs;
86 const uint16_t *quant_matrix;
88 nCoeffs= s->block_last_index[n];
90 quant_matrix = s->inter_matrix;
91 for(i=0; i<=nCoeffs; i++) {
92 int j= s->intra_scantable.permutated[i];
97 level = (((level << 1) + 1) * qscale *
98 ((int) (quant_matrix[j]))) >> 4;
99 level = (level - 1) | 1;
102 level = (((level << 1) + 1) * qscale *
103 ((int) (quant_matrix[j]))) >> 4;
104 level = (level - 1) | 1;
111 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
112 int16_t *block, int n, int qscale)
114 int i, level, nCoeffs;
115 const uint16_t *quant_matrix;
117 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
120 if(s->alternate_scan) nCoeffs= 63;
121 else nCoeffs= s->block_last_index[n];
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];
131 level = (int)(level * qscale * quant_matrix[j]) >> 4;
134 level = (int)(level * qscale * quant_matrix[j]) >> 4;
141 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
142 int16_t *block, int n, int qscale)
144 int i, level, nCoeffs;
145 const uint16_t *quant_matrix;
148 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
151 if(s->alternate_scan) nCoeffs= 63;
152 else nCoeffs= s->block_last_index[n];
154 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
156 quant_matrix = s->intra_matrix;
157 for(i=1;i<=nCoeffs;i++) {
158 int j= s->intra_scantable.permutated[i];
163 level = (int)(level * qscale * quant_matrix[j]) >> 4;
166 level = (int)(level * qscale * quant_matrix[j]) >> 4;
175 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
176 int16_t *block, int n, int qscale)
178 int i, level, nCoeffs;
179 const uint16_t *quant_matrix;
182 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
185 if(s->alternate_scan) nCoeffs= 63;
186 else nCoeffs= s->block_last_index[n];
188 quant_matrix = s->inter_matrix;
189 for(i=0; i<=nCoeffs; i++) {
190 int j= s->intra_scantable.permutated[i];
195 level = (((level << 1) + 1) * qscale *
196 ((int) (quant_matrix[j]))) >> 5;
199 level = (((level << 1) + 1) * qscale *
200 ((int) (quant_matrix[j]))) >> 5;
209 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
210 int16_t *block, int n, int qscale)
212 int i, level, qmul, qadd;
215 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
220 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
221 qadd = (qscale - 1) | 1;
228 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
230 for(i=1; i<=nCoeffs; i++) {
234 level = level * qmul - qadd;
236 level = level * qmul + qadd;
243 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
244 int16_t *block, int n, int qscale)
246 int i, level, qmul, qadd;
249 av_assert2(s->block_last_index[n]>=0);
251 qadd = (qscale - 1) | 1;
254 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
256 for(i=0; i<=nCoeffs; i++) {
260 level = level * qmul - qadd;
262 level = level * qmul + qadd;
270 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
273 memset(dst + h*linesize, 128, 16);
276 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
279 memset(dst + h*linesize, 128, 8);
282 /* init common dct for both encoder and decoder */
283 static av_cold int dct_init(MpegEncContext *s)
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);
288 ff_mpegvideodsp_init(&s->mdsp);
289 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
291 if (s->avctx->debug & FF_DEBUG_NOMC) {
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;
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;
304 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
305 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
306 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
307 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
308 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
309 if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
310 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
311 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
313 if (HAVE_INTRINSICS_NEON)
314 ff_mpv_common_init_neon(s);
317 ff_mpv_common_init_axp(s);
319 ff_mpv_common_init_arm(s);
321 ff_mpv_common_init_ppc(s);
323 ff_mpv_common_init_x86(s);
325 ff_mpv_common_init_mips(s);
330 av_cold void ff_mpv_idct_init(MpegEncContext *s)
332 ff_idctdsp_init(&s->idsp, s->avctx);
334 /* load & permutate scantables
335 * note: only wmv uses different ones
337 if (s->alternate_scan) {
338 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
339 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
341 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
342 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
344 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
345 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
348 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
350 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
351 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
352 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
353 &s->linesize, &s->uvlinesize);
356 static int init_duplicate_context(MpegEncContext *s)
358 int y_size = s->b8_stride * (2 * s->mb_height + 1);
359 int c_size = s->mb_stride * (s->mb_height + 1);
360 int yc_size = y_size + 2 * c_size;
363 if (s->mb_height & 1)
364 yc_size += 2*s->b8_stride + 2*s->mb_stride;
366 s->sc.edge_emu_buffer =
369 s->sc.rd_scratchpad =
371 s->sc.obmc_scratchpad = NULL;
374 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
375 ME_MAP_SIZE * sizeof(uint32_t), fail)
376 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
377 ME_MAP_SIZE * sizeof(uint32_t), fail)
378 if (s->noise_reduction) {
379 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
380 2 * 64 * sizeof(int), fail)
383 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
384 s->block = s->blocks[0];
386 for (i = 0; i < 12; i++) {
387 s->pblocks[i] = &s->block[i];
389 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
391 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
394 if (s->out_format == FMT_H263) {
396 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
397 yc_size * sizeof(int16_t) * 16, fail);
398 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
399 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
400 s->ac_val[2] = s->ac_val[1] + c_size;
405 return -1; // free() through ff_mpv_common_end()
408 static void free_duplicate_context(MpegEncContext *s)
413 av_freep(&s->sc.edge_emu_buffer);
414 av_freep(&s->me.scratchpad);
416 s->sc.rd_scratchpad =
418 s->sc.obmc_scratchpad = NULL;
420 av_freep(&s->dct_error_sum);
421 av_freep(&s->me.map);
422 av_freep(&s->me.score_map);
423 av_freep(&s->blocks);
424 av_freep(&s->ac_val_base);
428 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
430 #define COPY(a) bak->a = src->a
431 COPY(sc.edge_emu_buffer);
434 COPY(sc.rd_scratchpad);
435 COPY(sc.b_scratchpad);
436 COPY(sc.obmc_scratchpad);
443 COPY(me.map_generation);
455 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
459 // FIXME copy only needed parts
461 backup_duplicate_context(&bak, dst);
462 memcpy(dst, src, sizeof(MpegEncContext));
463 backup_duplicate_context(dst, &bak);
464 for (i = 0; i < 12; i++) {
465 dst->pblocks[i] = &dst->block[i];
467 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
469 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
471 if (!dst->sc.edge_emu_buffer &&
472 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
473 &dst->sc, dst->linesize)) < 0) {
474 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
475 "scratch buffers.\n");
478 // STOP_TIMER("update_duplicate_context")
479 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
483 int ff_mpeg_update_thread_context(AVCodecContext *dst,
484 const AVCodecContext *src)
487 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
494 // FIXME can parameters change on I-frames?
495 // in that case dst may need a reinit
496 if (!s->context_initialized) {
498 memcpy(s, s1, sizeof(MpegEncContext));
501 s->bitstream_buffer = NULL;
502 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
504 if (s1->context_initialized){
505 // s->picture_range_start += MAX_PICTURE_COUNT;
506 // s->picture_range_end += MAX_PICTURE_COUNT;
508 if((err = ff_mpv_common_init(s)) < 0){
509 memset(s, 0, sizeof(MpegEncContext));
516 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
517 s->context_reinit = 0;
518 s->height = s1->height;
519 s->width = s1->width;
520 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
524 s->avctx->coded_height = s1->avctx->coded_height;
525 s->avctx->coded_width = s1->avctx->coded_width;
526 s->avctx->width = s1->avctx->width;
527 s->avctx->height = s1->avctx->height;
529 s->coded_picture_number = s1->coded_picture_number;
530 s->picture_number = s1->picture_number;
532 av_assert0(!s->picture || s->picture != s1->picture);
534 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
535 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
536 if (s1->picture && s1->picture[i].f->buf[0] &&
537 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
541 #define UPDATE_PICTURE(pic)\
543 ff_mpeg_unref_picture(s->avctx, &s->pic);\
544 if (s1->pic.f && s1->pic.f->buf[0])\
545 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
547 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
552 UPDATE_PICTURE(current_picture);
553 UPDATE_PICTURE(last_picture);
554 UPDATE_PICTURE(next_picture);
556 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
557 ((pic && pic >= old_ctx->picture && \
558 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
559 &new_ctx->picture[pic - old_ctx->picture] : NULL)
561 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
562 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
563 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
565 // Error/bug resilience
566 s->next_p_frame_damaged = s1->next_p_frame_damaged;
567 s->workaround_bugs = s1->workaround_bugs;
568 s->padding_bug_score = s1->padding_bug_score;
570 // MPEG-4 timing info
571 memcpy(&s->last_time_base, &s1->last_time_base,
572 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
573 (char *) &s1->last_time_base);
576 s->max_b_frames = s1->max_b_frames;
577 s->low_delay = s1->low_delay;
578 s->droppable = s1->droppable;
580 // DivX handling (doesn't work)
581 s->divx_packed = s1->divx_packed;
583 if (s1->bitstream_buffer) {
584 if (s1->bitstream_buffer_size +
585 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
586 av_fast_malloc(&s->bitstream_buffer,
587 &s->allocated_bitstream_buffer_size,
588 s1->allocated_bitstream_buffer_size);
589 if (!s->bitstream_buffer) {
590 s->bitstream_buffer_size = 0;
591 return AVERROR(ENOMEM);
594 s->bitstream_buffer_size = s1->bitstream_buffer_size;
595 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
596 s1->bitstream_buffer_size);
597 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
598 AV_INPUT_BUFFER_PADDING_SIZE);
601 // linesize-dependent scratch buffer allocation
602 if (!s->sc.edge_emu_buffer)
604 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
605 &s->sc, s1->linesize) < 0) {
606 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
607 "scratch buffers.\n");
608 return AVERROR(ENOMEM);
611 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
612 "be allocated due to unknown size.\n");
615 // MPEG-2/interlacing info
616 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
617 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
619 if (!s1->first_field) {
620 s->last_pict_type = s1->pict_type;
621 if (s1->current_picture_ptr)
622 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
629 * Set the given MpegEncContext to common defaults
630 * (same for encoding and decoding).
631 * The changed fields will not depend upon the
632 * prior state of the MpegEncContext.
634 void ff_mpv_common_defaults(MpegEncContext *s)
636 s->y_dc_scale_table =
637 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
638 s->chroma_qscale_table = ff_default_chroma_qscale_table;
639 s->progressive_frame = 1;
640 s->progressive_sequence = 1;
641 s->picture_structure = PICT_FRAME;
643 s->coded_picture_number = 0;
644 s->picture_number = 0;
649 s->slice_context_count = 1;
653 * Set the given MpegEncContext to defaults for decoding.
654 * the changed fields will not depend upon
655 * the prior state of the MpegEncContext.
657 void ff_mpv_decode_defaults(MpegEncContext *s)
659 ff_mpv_common_defaults(s);
662 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
665 s->width = avctx->coded_width;
666 s->height = avctx->coded_height;
667 s->codec_id = avctx->codec->id;
668 s->workaround_bugs = avctx->workaround_bugs;
670 /* convert fourcc to upper case */
671 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
675 * Initialize and allocates MpegEncContext fields dependent on the resolution.
677 static int init_context_frame(MpegEncContext *s)
679 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
681 s->mb_width = (s->width + 15) / 16;
682 s->mb_stride = s->mb_width + 1;
683 s->b8_stride = s->mb_width * 2 + 1;
684 mb_array_size = s->mb_height * s->mb_stride;
685 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
687 /* set default edge pos, will be overridden
688 * in decode_header if needed */
689 s->h_edge_pos = s->mb_width * 16;
690 s->v_edge_pos = s->mb_height * 16;
692 s->mb_num = s->mb_width * s->mb_height;
697 s->block_wrap[3] = s->b8_stride;
699 s->block_wrap[5] = s->mb_stride;
701 y_size = s->b8_stride * (2 * s->mb_height + 1);
702 c_size = s->mb_stride * (s->mb_height + 1);
703 yc_size = y_size + 2 * c_size;
705 if (s->mb_height & 1)
706 yc_size += 2*s->b8_stride + 2*s->mb_stride;
708 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
709 fail); // error resilience code looks cleaner with this
710 for (y = 0; y < s->mb_height; y++)
711 for (x = 0; x < s->mb_width; x++)
712 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
714 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
717 /* Allocate MV tables */
718 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
719 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
720 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
721 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
722 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
723 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
724 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
725 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
726 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
727 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
728 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
729 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
731 /* Allocate MB type table */
732 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
734 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
736 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
737 mb_array_size * sizeof(float), fail);
738 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
739 mb_array_size * sizeof(float), fail);
743 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
744 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
745 /* interlaced direct mode decoding tables */
746 for (i = 0; i < 2; i++) {
748 for (j = 0; j < 2; j++) {
749 for (k = 0; k < 2; k++) {
750 FF_ALLOCZ_OR_GOTO(s->avctx,
751 s->b_field_mv_table_base[i][j][k],
752 mv_table_size * 2 * sizeof(int16_t),
754 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
757 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
758 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
759 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
761 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
764 if (s->out_format == FMT_H263) {
766 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
767 s->coded_block = s->coded_block_base + s->b8_stride + 1;
769 /* cbp, ac_pred, pred_dir */
770 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
771 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
774 if (s->h263_pred || s->h263_plus || !s->encoding) {
776 // MN: we need these for error resilience of intra-frames
777 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
778 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
779 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
780 s->dc_val[2] = s->dc_val[1] + c_size;
781 for (i = 0; i < yc_size; i++)
782 s->dc_val_base[i] = 1024;
785 /* which mb is an intra block */
786 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
787 memset(s->mbintra_table, 1, mb_array_size);
789 /* init macroblock skip table */
790 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
791 // Note the + 1 is for a quicker MPEG-4 slice_end detection
793 return ff_mpeg_er_init(s);
795 return AVERROR(ENOMEM);
798 static void clear_context(MpegEncContext *s)
802 memset(&s->next_picture, 0, sizeof(s->next_picture));
803 memset(&s->last_picture, 0, sizeof(s->last_picture));
804 memset(&s->current_picture, 0, sizeof(s->current_picture));
805 memset(&s->new_picture, 0, sizeof(s->new_picture));
807 memset(s->thread_context, 0, sizeof(s->thread_context));
810 s->me.score_map = NULL;
811 s->dct_error_sum = NULL;
814 memset(s->pblocks, 0, sizeof(s->pblocks));
815 s->ac_val_base = NULL;
819 s->sc.edge_emu_buffer = NULL;
820 s->me.scratchpad = NULL;
822 s->sc.rd_scratchpad =
824 s->sc.obmc_scratchpad = NULL;
827 s->bitstream_buffer = NULL;
828 s->allocated_bitstream_buffer_size = 0;
831 s->p_mv_table_base = NULL;
832 s->b_forw_mv_table_base = NULL;
833 s->b_back_mv_table_base = NULL;
834 s->b_bidir_forw_mv_table_base = NULL;
835 s->b_bidir_back_mv_table_base = NULL;
836 s->b_direct_mv_table_base = NULL;
837 s->p_mv_table = NULL;
838 s->b_forw_mv_table = NULL;
839 s->b_back_mv_table = NULL;
840 s->b_bidir_forw_mv_table = NULL;
841 s->b_bidir_back_mv_table = NULL;
842 s->b_direct_mv_table = NULL;
843 for (i = 0; i < 2; i++) {
844 for (j = 0; j < 2; j++) {
845 for (k = 0; k < 2; k++) {
846 s->b_field_mv_table_base[i][j][k] = NULL;
847 s->b_field_mv_table[i][j][k] = NULL;
849 s->b_field_select_table[i][j] = NULL;
850 s->p_field_mv_table_base[i][j] = NULL;
851 s->p_field_mv_table[i][j] = NULL;
853 s->p_field_select_table[i] = NULL;
856 s->dc_val_base = NULL;
857 s->coded_block_base = NULL;
858 s->mbintra_table = NULL;
860 s->pred_dir_table = NULL;
862 s->mbskip_table = NULL;
864 s->er.error_status_table = NULL;
865 s->er.er_temp_buffer = NULL;
866 s->mb_index2xy = NULL;
867 s->lambda_table = NULL;
874 * init common structure for both encoder and decoder.
875 * this assumes that some variables like width/height are already set
877 av_cold int ff_mpv_common_init(MpegEncContext *s)
880 int nb_slices = (HAVE_THREADS &&
881 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
882 s->avctx->thread_count : 1;
886 if (s->encoding && s->avctx->slices)
887 nb_slices = s->avctx->slices;
889 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
890 s->mb_height = (s->height + 31) / 32 * 2;
892 s->mb_height = (s->height + 15) / 16;
894 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
895 av_log(s->avctx, AV_LOG_ERROR,
896 "decoding to AV_PIX_FMT_NONE is not supported.\n");
900 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
903 max_slices = FFMIN(MAX_THREADS, s->mb_height);
905 max_slices = MAX_THREADS;
906 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
907 " reducing to %d\n", nb_slices, max_slices);
908 nb_slices = max_slices;
911 if ((s->width || s->height) &&
912 av_image_check_size(s->width, s->height, 0, s->avctx))
917 /* set chroma shifts */
918 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
923 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
924 MAX_PICTURE_COUNT * sizeof(Picture), fail);
925 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
926 s->picture[i].f = av_frame_alloc();
927 if (!s->picture[i].f)
930 s->next_picture.f = av_frame_alloc();
931 if (!s->next_picture.f)
933 s->last_picture.f = av_frame_alloc();
934 if (!s->last_picture.f)
936 s->current_picture.f = av_frame_alloc();
937 if (!s->current_picture.f)
939 s->new_picture.f = av_frame_alloc();
940 if (!s->new_picture.f)
943 if (init_context_frame(s))
946 s->parse_context.state = -1;
948 s->context_initialized = 1;
949 memset(s->thread_context, 0, sizeof(s->thread_context));
950 s->thread_context[0] = s;
952 // if (s->width && s->height) {
954 for (i = 0; i < nb_slices; i++) {
956 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
957 if (!s->thread_context[i])
960 if (init_duplicate_context(s->thread_context[i]) < 0)
962 s->thread_context[i]->start_mb_y =
963 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
964 s->thread_context[i]->end_mb_y =
965 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
968 if (init_duplicate_context(s) < 0)
971 s->end_mb_y = s->mb_height;
973 s->slice_context_count = nb_slices;
978 ff_mpv_common_end(s);
983 * Frees and resets MpegEncContext fields depending on the resolution.
984 * Is used during resolution changes to avoid a full reinitialization of the
987 static void free_context_frame(MpegEncContext *s)
991 av_freep(&s->mb_type);
992 av_freep(&s->p_mv_table_base);
993 av_freep(&s->b_forw_mv_table_base);
994 av_freep(&s->b_back_mv_table_base);
995 av_freep(&s->b_bidir_forw_mv_table_base);
996 av_freep(&s->b_bidir_back_mv_table_base);
997 av_freep(&s->b_direct_mv_table_base);
998 s->p_mv_table = NULL;
999 s->b_forw_mv_table = NULL;
1000 s->b_back_mv_table = NULL;
1001 s->b_bidir_forw_mv_table = NULL;
1002 s->b_bidir_back_mv_table = NULL;
1003 s->b_direct_mv_table = NULL;
1004 for (i = 0; i < 2; i++) {
1005 for (j = 0; j < 2; j++) {
1006 for (k = 0; k < 2; k++) {
1007 av_freep(&s->b_field_mv_table_base[i][j][k]);
1008 s->b_field_mv_table[i][j][k] = NULL;
1010 av_freep(&s->b_field_select_table[i][j]);
1011 av_freep(&s->p_field_mv_table_base[i][j]);
1012 s->p_field_mv_table[i][j] = NULL;
1014 av_freep(&s->p_field_select_table[i]);
1017 av_freep(&s->dc_val_base);
1018 av_freep(&s->coded_block_base);
1019 av_freep(&s->mbintra_table);
1020 av_freep(&s->cbp_table);
1021 av_freep(&s->pred_dir_table);
1023 av_freep(&s->mbskip_table);
1025 av_freep(&s->er.error_status_table);
1026 av_freep(&s->er.er_temp_buffer);
1027 av_freep(&s->mb_index2xy);
1028 av_freep(&s->lambda_table);
1030 av_freep(&s->cplx_tab);
1031 av_freep(&s->bits_tab);
1033 s->linesize = s->uvlinesize = 0;
1036 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1040 if (!s->context_initialized)
1041 return AVERROR(EINVAL);
1043 if (s->slice_context_count > 1) {
1044 for (i = 0; i < s->slice_context_count; i++) {
1045 free_duplicate_context(s->thread_context[i]);
1047 for (i = 1; i < s->slice_context_count; i++) {
1048 av_freep(&s->thread_context[i]);
1051 free_duplicate_context(s);
1053 free_context_frame(s);
1056 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1057 s->picture[i].needs_realloc = 1;
1060 s->last_picture_ptr =
1061 s->next_picture_ptr =
1062 s->current_picture_ptr = NULL;
1065 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1066 s->mb_height = (s->height + 31) / 32 * 2;
1068 s->mb_height = (s->height + 15) / 16;
1070 if ((s->width || s->height) &&
1071 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1074 if ((err = init_context_frame(s)))
1077 memset(s->thread_context, 0, sizeof(s->thread_context));
1078 s->thread_context[0] = s;
1080 if (s->width && s->height) {
1081 int nb_slices = s->slice_context_count;
1082 if (nb_slices > 1) {
1083 for (i = 0; i < nb_slices; i++) {
1085 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1086 if (!s->thread_context[i]) {
1087 err = AVERROR(ENOMEM);
1091 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1093 s->thread_context[i]->start_mb_y =
1094 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1095 s->thread_context[i]->end_mb_y =
1096 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1099 err = init_duplicate_context(s);
1103 s->end_mb_y = s->mb_height;
1105 s->slice_context_count = nb_slices;
1110 ff_mpv_common_end(s);
1114 /* init common structure for both encoder and decoder */
1115 void ff_mpv_common_end(MpegEncContext *s)
1122 if (s->slice_context_count > 1) {
1123 for (i = 0; i < s->slice_context_count; i++) {
1124 free_duplicate_context(s->thread_context[i]);
1126 for (i = 1; i < s->slice_context_count; i++) {
1127 av_freep(&s->thread_context[i]);
1129 s->slice_context_count = 1;
1130 } else free_duplicate_context(s);
1132 av_freep(&s->parse_context.buffer);
1133 s->parse_context.buffer_size = 0;
1135 av_freep(&s->bitstream_buffer);
1136 s->allocated_bitstream_buffer_size = 0;
1139 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1140 ff_free_picture_tables(&s->picture[i]);
1141 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1142 av_frame_free(&s->picture[i].f);
1145 av_freep(&s->picture);
1146 ff_free_picture_tables(&s->last_picture);
1147 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1148 av_frame_free(&s->last_picture.f);
1149 ff_free_picture_tables(&s->current_picture);
1150 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1151 av_frame_free(&s->current_picture.f);
1152 ff_free_picture_tables(&s->next_picture);
1153 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1154 av_frame_free(&s->next_picture.f);
1155 ff_free_picture_tables(&s->new_picture);
1156 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1157 av_frame_free(&s->new_picture.f);
1159 free_context_frame(s);
1161 s->context_initialized = 0;
1162 s->last_picture_ptr =
1163 s->next_picture_ptr =
1164 s->current_picture_ptr = NULL;
1165 s->linesize = s->uvlinesize = 0;
1169 static void gray_frame(AVFrame *frame)
1171 int i, h_chroma_shift, v_chroma_shift;
1173 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1175 for(i=0; i<frame->height; i++)
1176 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1177 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1178 memset(frame->data[1] + frame->linesize[1]*i,
1179 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1180 memset(frame->data[2] + frame->linesize[2]*i,
1181 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1186 * generic function called after decoding
1187 * the header and before a frame is decoded.
1189 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1195 if (!ff_thread_can_start_frame(avctx)) {
1196 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1200 /* mark & release old frames */
1201 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1202 s->last_picture_ptr != s->next_picture_ptr &&
1203 s->last_picture_ptr->f->buf[0]) {
1204 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1207 /* release forgotten pictures */
1208 /* if (MPEG-124 / H.263) */
1209 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1210 if (&s->picture[i] != s->last_picture_ptr &&
1211 &s->picture[i] != s->next_picture_ptr &&
1212 s->picture[i].reference && !s->picture[i].needs_realloc) {
1213 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1217 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1218 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1219 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1221 /* release non reference frames */
1222 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1223 if (!s->picture[i].reference)
1224 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1227 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1228 // we already have an unused image
1229 // (maybe it was set before reading the header)
1230 pic = s->current_picture_ptr;
1232 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1234 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1237 pic = &s->picture[i];
1241 if (!s->droppable) {
1242 if (s->pict_type != AV_PICTURE_TYPE_B)
1246 pic->f->coded_picture_number = s->coded_picture_number++;
1248 if (alloc_picture(s, pic, 0) < 0)
1251 s->current_picture_ptr = pic;
1252 // FIXME use only the vars from current_pic
1253 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1254 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1255 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1256 if (s->picture_structure != PICT_FRAME)
1257 s->current_picture_ptr->f->top_field_first =
1258 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1260 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1261 !s->progressive_sequence;
1262 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1264 s->current_picture_ptr->f->pict_type = s->pict_type;
1265 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1266 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1267 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1269 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1270 s->current_picture_ptr)) < 0)
1273 if (s->pict_type != AV_PICTURE_TYPE_B) {
1274 s->last_picture_ptr = s->next_picture_ptr;
1276 s->next_picture_ptr = s->current_picture_ptr;
1278 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1279 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1280 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1281 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1282 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1283 s->pict_type, s->droppable);
1285 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1286 (s->pict_type != AV_PICTURE_TYPE_I)) {
1287 int h_chroma_shift, v_chroma_shift;
1288 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1289 &h_chroma_shift, &v_chroma_shift);
1290 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1291 av_log(avctx, AV_LOG_DEBUG,
1292 "allocating dummy last picture for B frame\n");
1293 else if (s->pict_type != AV_PICTURE_TYPE_I)
1294 av_log(avctx, AV_LOG_ERROR,
1295 "warning: first frame is no keyframe\n");
1297 /* Allocate a dummy frame */
1298 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1300 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1303 s->last_picture_ptr = &s->picture[i];
1305 s->last_picture_ptr->reference = 3;
1306 s->last_picture_ptr->f->key_frame = 0;
1307 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1309 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1310 s->last_picture_ptr = NULL;
1314 if (!avctx->hwaccel) {
1315 for(i=0; i<avctx->height; i++)
1316 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1317 0x80, avctx->width);
1318 if (s->last_picture_ptr->f->data[2]) {
1319 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1320 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1321 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1322 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1323 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1327 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1328 for(i=0; i<avctx->height; i++)
1329 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1333 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1334 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1336 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1337 s->pict_type == AV_PICTURE_TYPE_B) {
1338 /* Allocate a dummy frame */
1339 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1341 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1344 s->next_picture_ptr = &s->picture[i];
1346 s->next_picture_ptr->reference = 3;
1347 s->next_picture_ptr->f->key_frame = 0;
1348 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1350 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1351 s->next_picture_ptr = NULL;
1354 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1355 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1358 #if 0 // BUFREF-FIXME
1359 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1360 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1362 if (s->last_picture_ptr) {
1363 if (s->last_picture_ptr->f->buf[0] &&
1364 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1365 s->last_picture_ptr)) < 0)
1368 if (s->next_picture_ptr) {
1369 if (s->next_picture_ptr->f->buf[0] &&
1370 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1371 s->next_picture_ptr)) < 0)
1375 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1376 s->last_picture_ptr->f->buf[0]));
1378 if (s->picture_structure!= PICT_FRAME) {
1380 for (i = 0; i < 4; i++) {
1381 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1382 s->current_picture.f->data[i] +=
1383 s->current_picture.f->linesize[i];
1385 s->current_picture.f->linesize[i] *= 2;
1386 s->last_picture.f->linesize[i] *= 2;
1387 s->next_picture.f->linesize[i] *= 2;
1391 /* set dequantizer, we can't do it during init as
1392 * it might change for MPEG-4 and we can't do it in the header
1393 * decode as init is not called for MPEG-4 there yet */
1394 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1395 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1396 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1397 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1398 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1399 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1401 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1402 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1405 if (s->avctx->debug & FF_DEBUG_NOMC) {
1406 gray_frame(s->current_picture_ptr->f);
1412 /* called after a frame has been decoded. */
1413 void ff_mpv_frame_end(MpegEncContext *s)
1417 if (s->current_picture.reference)
1418 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1421 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
1422 int dst_x, int dst_y,
1423 int motion_x, int motion_y, int motion_scale,
1426 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
1427 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
1428 mb->motion_x = motion_x;
1429 mb->motion_y = motion_y;
1430 mb->motion_scale = motion_scale;
1433 mb->src_x = dst_x + motion_x / motion_scale;
1434 mb->src_y = dst_y + motion_y / motion_scale;
1435 mb->source = direction ? 1 : -1;
1436 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
1441 * Print debugging info for the given picture.
1443 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1444 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1446 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1448 if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
1449 const int shift = 1 + quarter_sample;
1450 const int scale = 1 << shift;
1451 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1452 const int mv_stride = (mb_width << mv_sample_log2) +
1453 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1454 int mb_x, mb_y, mbcount = 0;
1456 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
1457 * for the maximum number of MB (4 MB in case of IS_8x8) */
1458 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
1462 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1463 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1464 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
1465 for (direction = 0; direction < 2; direction++) {
1466 if (!USES_LIST(mb_type, direction))
1468 if (IS_8X8(mb_type)) {
1469 for (i = 0; i < 4; i++) {
1470 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1471 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1472 int xy = (mb_x * 2 + (i & 1) +
1473 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1474 int mx = motion_val[direction][xy][0];
1475 int my = motion_val[direction][xy][1];
1476 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1478 } else if (IS_16X8(mb_type)) {
1479 for (i = 0; i < 2; i++) {
1480 int sx = mb_x * 16 + 8;
1481 int sy = mb_y * 16 + 4 + 8 * i;
1482 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1483 int mx = motion_val[direction][xy][0];
1484 int my = motion_val[direction][xy][1];
1486 if (IS_INTERLACED(mb_type))
1489 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1491 } else if (IS_8X16(mb_type)) {
1492 for (i = 0; i < 2; i++) {
1493 int sx = mb_x * 16 + 4 + 8 * i;
1494 int sy = mb_y * 16 + 8;
1495 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1496 int mx = motion_val[direction][xy][0];
1497 int my = motion_val[direction][xy][1];
1499 if (IS_INTERLACED(mb_type))
1502 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1505 int sx = mb_x * 16 + 8;
1506 int sy = mb_y * 16 + 8;
1507 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
1508 int mx = motion_val[direction][xy][0];
1509 int my = motion_val[direction][xy][1];
1510 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1517 AVFrameSideData *sd;
1519 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
1520 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
1525 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
1531 /* TODO: export all the following to make them accessible for users (and filters) */
1532 if (avctx->hwaccel || !mbtype_table)
1536 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1539 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1540 av_get_picture_type_char(pict->pict_type));
1541 for (y = 0; y < mb_height; y++) {
1542 for (x = 0; x < mb_width; x++) {
1543 if (avctx->debug & FF_DEBUG_SKIP) {
1544 int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
1547 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1549 if (avctx->debug & FF_DEBUG_QP) {
1550 av_log(avctx, AV_LOG_DEBUG, "%2d",
1551 qscale_table[x + y * mb_stride]);
1553 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1554 int mb_type = mbtype_table[x + y * mb_stride];
1555 // Type & MV direction
1556 if (IS_PCM(mb_type))
1557 av_log(avctx, AV_LOG_DEBUG, "P");
1558 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1559 av_log(avctx, AV_LOG_DEBUG, "A");
1560 else if (IS_INTRA4x4(mb_type))
1561 av_log(avctx, AV_LOG_DEBUG, "i");
1562 else if (IS_INTRA16x16(mb_type))
1563 av_log(avctx, AV_LOG_DEBUG, "I");
1564 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1565 av_log(avctx, AV_LOG_DEBUG, "d");
1566 else if (IS_DIRECT(mb_type))
1567 av_log(avctx, AV_LOG_DEBUG, "D");
1568 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1569 av_log(avctx, AV_LOG_DEBUG, "g");
1570 else if (IS_GMC(mb_type))
1571 av_log(avctx, AV_LOG_DEBUG, "G");
1572 else if (IS_SKIP(mb_type))
1573 av_log(avctx, AV_LOG_DEBUG, "S");
1574 else if (!USES_LIST(mb_type, 1))
1575 av_log(avctx, AV_LOG_DEBUG, ">");
1576 else if (!USES_LIST(mb_type, 0))
1577 av_log(avctx, AV_LOG_DEBUG, "<");
1579 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1580 av_log(avctx, AV_LOG_DEBUG, "X");
1584 if (IS_8X8(mb_type))
1585 av_log(avctx, AV_LOG_DEBUG, "+");
1586 else if (IS_16X8(mb_type))
1587 av_log(avctx, AV_LOG_DEBUG, "-");
1588 else if (IS_8X16(mb_type))
1589 av_log(avctx, AV_LOG_DEBUG, "|");
1590 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1591 av_log(avctx, AV_LOG_DEBUG, " ");
1593 av_log(avctx, AV_LOG_DEBUG, "?");
1596 if (IS_INTERLACED(mb_type))
1597 av_log(avctx, AV_LOG_DEBUG, "=");
1599 av_log(avctx, AV_LOG_DEBUG, " ");
1602 av_log(avctx, AV_LOG_DEBUG, "\n");
1607 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1608 (avctx->debug_mv)) {
1611 int h_chroma_shift, v_chroma_shift, block_height;
1612 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1613 const int mv_stride = (mb_width << mv_sample_log2) +
1614 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1617 *low_delay = 0; // needed to see the vectors without trashing the buffers
1619 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1621 av_frame_make_writable(pict);
1623 pict->opaque = NULL;
1624 block_height = 16 >> v_chroma_shift;
1626 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1628 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1629 const int mb_index = mb_x + mb_y * mb_stride;
1630 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
1631 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
1632 0x0101010101010101ULL;
1634 for (y = 0; y < block_height; y++) {
1635 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1636 (block_height * mb_y + y) *
1637 pict->linesize[1]) = c;
1638 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1639 (block_height * mb_y + y) *
1640 pict->linesize[2]) = c;
1643 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
1645 int mb_type = mbtype_table[mb_index];
1648 #define COLOR(theta, r) \
1649 u = (int)(128 + r * cos(theta * M_PI / 180)); \
1650 v = (int)(128 + r * sin(theta * M_PI / 180));
1654 if (IS_PCM(mb_type)) {
1656 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
1657 IS_INTRA16x16(mb_type)) {
1659 } else if (IS_INTRA4x4(mb_type)) {
1661 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
1663 } else if (IS_DIRECT(mb_type)) {
1665 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
1667 } else if (IS_GMC(mb_type)) {
1669 } else if (IS_SKIP(mb_type)) {
1671 } else if (!USES_LIST(mb_type, 1)) {
1673 } else if (!USES_LIST(mb_type, 0)) {
1676 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1680 u *= 0x0101010101010101ULL;
1681 v *= 0x0101010101010101ULL;
1682 for (y = 0; y < block_height; y++) {
1683 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1684 (block_height * mb_y + y) * pict->linesize[1]) = u;
1685 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1686 (block_height * mb_y + y) * pict->linesize[2]) = v;
1690 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
1691 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
1692 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1693 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
1694 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1696 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
1697 for (y = 0; y < 16; y++)
1698 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
1699 pict->linesize[0]] ^= 0x80;
1701 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
1702 int dm = 1 << (mv_sample_log2 - 2);
1703 for (i = 0; i < 4; i++) {
1704 int sx = mb_x * 16 + 8 * (i & 1);
1705 int sy = mb_y * 16 + 8 * (i >> 1);
1706 int xy = (mb_x * 2 + (i & 1) +
1707 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1709 int32_t *mv = (int32_t *) &motion_val[0][xy];
1710 if (mv[0] != mv[dm] ||
1711 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
1712 for (y = 0; y < 8; y++)
1713 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
1714 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
1715 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
1716 pict->linesize[0]) ^= 0x8080808080808080ULL;
1720 if (IS_INTERLACED(mb_type) &&
1721 avctx->codec->id == AV_CODEC_ID_H264) {
1726 mbskip_table[mb_index] = 0;
1733 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1735 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1736 p->qscale_table, p->motion_val, &s->low_delay,
1737 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1740 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1742 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1743 int offset = 2*s->mb_stride + 1;
1745 return AVERROR(ENOMEM);
1746 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1747 ref->size -= offset;
1748 ref->data += offset;
1749 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1752 static inline int hpel_motion_lowres(MpegEncContext *s,
1753 uint8_t *dest, uint8_t *src,
1754 int field_based, int field_select,
1755 int src_x, int src_y,
1756 int width, int height, ptrdiff_t stride,
1757 int h_edge_pos, int v_edge_pos,
1758 int w, int h, h264_chroma_mc_func *pix_op,
1759 int motion_x, int motion_y)
1761 const int lowres = s->avctx->lowres;
1762 const int op_index = FFMIN(lowres, 3);
1763 const int s_mask = (2 << lowres) - 1;
1767 if (s->quarter_sample) {
1772 sx = motion_x & s_mask;
1773 sy = motion_y & s_mask;
1774 src_x += motion_x >> lowres + 1;
1775 src_y += motion_y >> lowres + 1;
1777 src += src_y * stride + src_x;
1779 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1780 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1781 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1782 s->linesize, s->linesize,
1783 w + 1, (h + 1) << field_based,
1784 src_x, src_y << field_based,
1785 h_edge_pos, v_edge_pos);
1786 src = s->sc.edge_emu_buffer;
1790 sx = (sx << 2) >> lowres;
1791 sy = (sy << 2) >> lowres;
1794 pix_op[op_index](dest, src, stride, h, sx, sy);
1798 /* apply one mpeg motion vector to the three components */
1799 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1806 uint8_t **ref_picture,
1807 h264_chroma_mc_func *pix_op,
1808 int motion_x, int motion_y,
1811 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1812 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1813 ptrdiff_t uvlinesize, linesize;
1814 const int lowres = s->avctx->lowres;
1815 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1816 const int block_s = 8>>lowres;
1817 const int s_mask = (2 << lowres) - 1;
1818 const int h_edge_pos = s->h_edge_pos >> lowres;
1819 const int v_edge_pos = s->v_edge_pos >> lowres;
1820 linesize = s->current_picture.f->linesize[0] << field_based;
1821 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1823 // FIXME obviously not perfect but qpel will not work in lowres anyway
1824 if (s->quarter_sample) {
1830 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1833 sx = motion_x & s_mask;
1834 sy = motion_y & s_mask;
1835 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1836 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1838 if (s->out_format == FMT_H263) {
1839 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1840 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1841 uvsrc_x = src_x >> 1;
1842 uvsrc_y = src_y >> 1;
1843 } else if (s->out_format == FMT_H261) {
1844 // even chroma mv's are full pel in H261
1847 uvsx = (2 * mx) & s_mask;
1848 uvsy = (2 * my) & s_mask;
1849 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1850 uvsrc_y = mb_y * block_s + (my >> lowres);
1852 if(s->chroma_y_shift){
1857 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1858 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1860 if(s->chroma_x_shift){
1864 uvsy = motion_y & s_mask;
1866 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1869 uvsx = motion_x & s_mask;
1870 uvsy = motion_y & s_mask;
1877 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1878 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1879 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1881 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1882 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1883 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1884 linesize >> field_based, linesize >> field_based,
1885 17, 17 + field_based,
1886 src_x, src_y << field_based, h_edge_pos,
1888 ptr_y = s->sc.edge_emu_buffer;
1889 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1890 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1891 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1892 if (s->workaround_bugs & FF_BUG_IEDGE)
1893 vbuf -= s->uvlinesize;
1894 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1895 uvlinesize >> field_based, uvlinesize >> field_based,
1897 uvsrc_x, uvsrc_y << field_based,
1898 h_edge_pos >> 1, v_edge_pos >> 1);
1899 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1900 uvlinesize >> field_based,uvlinesize >> field_based,
1902 uvsrc_x, uvsrc_y << field_based,
1903 h_edge_pos >> 1, v_edge_pos >> 1);
1909 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1911 dest_y += s->linesize;
1912 dest_cb += s->uvlinesize;
1913 dest_cr += s->uvlinesize;
1917 ptr_y += s->linesize;
1918 ptr_cb += s->uvlinesize;
1919 ptr_cr += s->uvlinesize;
1922 sx = (sx << 2) >> lowres;
1923 sy = (sy << 2) >> lowres;
1924 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1926 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1927 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1928 uvsx = (uvsx << 2) >> lowres;
1929 uvsy = (uvsy << 2) >> lowres;
1931 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1932 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1935 // FIXME h261 lowres loop filter
1938 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1939 uint8_t *dest_cb, uint8_t *dest_cr,
1940 uint8_t **ref_picture,
1941 h264_chroma_mc_func * pix_op,
1944 const int lowres = s->avctx->lowres;
1945 const int op_index = FFMIN(lowres, 3);
1946 const int block_s = 8 >> lowres;
1947 const int s_mask = (2 << lowres) - 1;
1948 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1949 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1950 int emu = 0, src_x, src_y, sx, sy;
1954 if (s->quarter_sample) {
1959 /* In case of 8X8, we construct a single chroma motion vector
1960 with a special rounding */
1961 mx = ff_h263_round_chroma(mx);
1962 my = ff_h263_round_chroma(my);
1966 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1967 src_y = s->mb_y * block_s + (my >> lowres + 1);
1969 offset = src_y * s->uvlinesize + src_x;
1970 ptr = ref_picture[1] + offset;
1971 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1972 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1973 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1974 s->uvlinesize, s->uvlinesize,
1976 src_x, src_y, h_edge_pos, v_edge_pos);
1977 ptr = s->sc.edge_emu_buffer;
1980 sx = (sx << 2) >> lowres;
1981 sy = (sy << 2) >> lowres;
1982 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1984 ptr = ref_picture[2] + offset;
1986 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1987 s->uvlinesize, s->uvlinesize,
1989 src_x, src_y, h_edge_pos, v_edge_pos);
1990 ptr = s->sc.edge_emu_buffer;
1992 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1996 * motion compensation of a single macroblock
1998 * @param dest_y luma destination pointer
1999 * @param dest_cb chroma cb/u destination pointer
2000 * @param dest_cr chroma cr/v destination pointer
2001 * @param dir direction (0->forward, 1->backward)
2002 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2003 * @param pix_op halfpel motion compensation function (average or put normally)
2004 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2006 static inline void MPV_motion_lowres(MpegEncContext *s,
2007 uint8_t *dest_y, uint8_t *dest_cb,
2009 int dir, uint8_t **ref_picture,
2010 h264_chroma_mc_func *pix_op)
2014 const int lowres = s->avctx->lowres;
2015 const int block_s = 8 >>lowres;
2020 switch (s->mv_type) {
2022 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2024 ref_picture, pix_op,
2025 s->mv[dir][0][0], s->mv[dir][0][1],
2031 for (i = 0; i < 4; i++) {
2032 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2033 s->linesize) * block_s,
2034 ref_picture[0], 0, 0,
2035 (2 * mb_x + (i & 1)) * block_s,
2036 (2 * mb_y + (i >> 1)) * block_s,
2037 s->width, s->height, s->linesize,
2038 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2039 block_s, block_s, pix_op,
2040 s->mv[dir][i][0], s->mv[dir][i][1]);
2042 mx += s->mv[dir][i][0];
2043 my += s->mv[dir][i][1];
2046 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
2047 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2051 if (s->picture_structure == PICT_FRAME) {
2053 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2054 1, 0, s->field_select[dir][0],
2055 ref_picture, pix_op,
2056 s->mv[dir][0][0], s->mv[dir][0][1],
2059 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2060 1, 1, s->field_select[dir][1],
2061 ref_picture, pix_op,
2062 s->mv[dir][1][0], s->mv[dir][1][1],
2065 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2066 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2067 ref_picture = s->current_picture_ptr->f->data;
2070 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2071 0, 0, s->field_select[dir][0],
2072 ref_picture, pix_op,
2074 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2078 for (i = 0; i < 2; i++) {
2079 uint8_t **ref2picture;
2081 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2082 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2083 ref2picture = ref_picture;
2085 ref2picture = s->current_picture_ptr->f->data;
2088 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2089 0, 0, s->field_select[dir][i],
2090 ref2picture, pix_op,
2091 s->mv[dir][i][0], s->mv[dir][i][1] +
2092 2 * block_s * i, block_s, mb_y >> 1);
2094 dest_y += 2 * block_s * s->linesize;
2095 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2096 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2100 if (s->picture_structure == PICT_FRAME) {
2101 for (i = 0; i < 2; i++) {
2103 for (j = 0; j < 2; j++) {
2104 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2106 ref_picture, pix_op,
2107 s->mv[dir][2 * i + j][0],
2108 s->mv[dir][2 * i + j][1],
2111 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2114 for (i = 0; i < 2; i++) {
2115 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2116 0, 0, s->picture_structure != i + 1,
2117 ref_picture, pix_op,
2118 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2119 2 * block_s, mb_y >> 1);
2121 // after put we make avg of the same block
2122 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2124 // opposite parity is always in the same
2125 // frame if this is second field
2126 if (!s->first_field) {
2127 ref_picture = s->current_picture_ptr->f->data;
2138 * find the lowest MB row referenced in the MVs
2140 static int lowest_referenced_row(MpegEncContext *s, int dir)
2142 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2143 int my, off, i, mvs;
2145 if (s->picture_structure != PICT_FRAME || s->mcsel)
2148 switch (s->mv_type) {
2162 for (i = 0; i < mvs; i++) {
2163 my = s->mv[dir][i][1];
2164 my_max = FFMAX(my_max, my);
2165 my_min = FFMIN(my_min, my);
2168 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
2170 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
2172 return s->mb_height-1;
2175 /* put block[] to dest[] */
2176 static inline void put_dct(MpegEncContext *s,
2177 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2179 s->dct_unquantize_intra(s, block, i, qscale);
2180 s->idsp.idct_put(dest, line_size, block);
2183 /* add block[] to dest[] */
2184 static inline void add_dct(MpegEncContext *s,
2185 int16_t *block, int i, uint8_t *dest, int line_size)
2187 if (s->block_last_index[i] >= 0) {
2188 s->idsp.idct_add(dest, line_size, block);
2192 static inline void add_dequant_dct(MpegEncContext *s,
2193 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2195 if (s->block_last_index[i] >= 0) {
2196 s->dct_unquantize_inter(s, block, i, qscale);
2198 s->idsp.idct_add(dest, line_size, block);
2203 * Clean dc, ac, coded_block for the current non-intra MB.
2205 void ff_clean_intra_table_entries(MpegEncContext *s)
2207 int wrap = s->b8_stride;
2208 int xy = s->block_index[0];
2211 s->dc_val[0][xy + 1 ] =
2212 s->dc_val[0][xy + wrap] =
2213 s->dc_val[0][xy + 1 + wrap] = 1024;
2215 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2216 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2217 if (s->msmpeg4_version>=3) {
2218 s->coded_block[xy ] =
2219 s->coded_block[xy + 1 ] =
2220 s->coded_block[xy + wrap] =
2221 s->coded_block[xy + 1 + wrap] = 0;
2224 wrap = s->mb_stride;
2225 xy = s->mb_x + s->mb_y * wrap;
2227 s->dc_val[2][xy] = 1024;
2229 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2230 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2232 s->mbintra_table[xy]= 0;
2235 /* generic function called after a macroblock has been parsed by the
2236 decoder or after it has been encoded by the encoder.
2238 Important variables used:
2239 s->mb_intra : true if intra macroblock
2240 s->mv_dir : motion vector direction
2241 s->mv_type : motion vector type
2242 s->mv : motion vector
2243 s->interlaced_dct : true if interlaced dct used (mpeg2)
2245 static av_always_inline
2246 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
2247 int lowres_flag, int is_mpeg12)
2249 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2252 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2253 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2257 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2258 /* print DCT coefficients */
2260 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2262 for(j=0; j<64; j++){
2263 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
2264 block[i][s->idsp.idct_permutation[j]]);
2266 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2270 s->current_picture.qscale_table[mb_xy] = s->qscale;
2272 /* update DC predictors for P macroblocks */
2274 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2275 if(s->mbintra_table[mb_xy])
2276 ff_clean_intra_table_entries(s);
2280 s->last_dc[2] = 128 << s->intra_dc_precision;
2283 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2284 s->mbintra_table[mb_xy]=1;
2286 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
2287 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2288 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2289 uint8_t *dest_y, *dest_cb, *dest_cr;
2290 int dct_linesize, dct_offset;
2291 op_pixels_func (*op_pix)[4];
2292 qpel_mc_func (*op_qpix)[16];
2293 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2294 const int uvlinesize = s->current_picture.f->linesize[1];
2295 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2296 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2298 /* avoid copy if macroblock skipped in last frame too */
2299 /* skip only during decoding as we might trash the buffers during encoding a bit */
2301 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2303 if (s->mb_skipped) {
2305 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2307 } else if(!s->current_picture.reference) {
2310 *mbskip_ptr = 0; /* not skipped */
2314 dct_linesize = linesize << s->interlaced_dct;
2315 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2319 dest_cb= s->dest[1];
2320 dest_cr= s->dest[2];
2322 dest_y = s->sc.b_scratchpad;
2323 dest_cb= s->sc.b_scratchpad+16*linesize;
2324 dest_cr= s->sc.b_scratchpad+32*linesize;
2328 /* motion handling */
2329 /* decoding or more than one mb_type (MC was already done otherwise) */
2332 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2333 if (s->mv_dir & MV_DIR_FORWARD) {
2334 ff_thread_await_progress(&s->last_picture_ptr->tf,
2335 lowest_referenced_row(s, 0),
2338 if (s->mv_dir & MV_DIR_BACKWARD) {
2339 ff_thread_await_progress(&s->next_picture_ptr->tf,
2340 lowest_referenced_row(s, 1),
2346 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2348 if (s->mv_dir & MV_DIR_FORWARD) {
2349 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2350 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2352 if (s->mv_dir & MV_DIR_BACKWARD) {
2353 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2356 op_qpix = s->me.qpel_put;
2357 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2358 op_pix = s->hdsp.put_pixels_tab;
2360 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2362 if (s->mv_dir & MV_DIR_FORWARD) {
2363 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2364 op_pix = s->hdsp.avg_pixels_tab;
2365 op_qpix= s->me.qpel_avg;
2367 if (s->mv_dir & MV_DIR_BACKWARD) {
2368 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2373 /* skip dequant / idct if we are really late ;) */
2374 if(s->avctx->skip_idct){
2375 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2376 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2377 || s->avctx->skip_idct >= AVDISCARD_ALL)
2381 /* add dct residue */
2382 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2383 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2384 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2385 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2386 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2387 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2389 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2390 if (s->chroma_y_shift){
2391 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2392 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2396 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2397 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2398 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2399 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2402 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2403 add_dct(s, block[0], 0, dest_y , dct_linesize);
2404 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2405 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2406 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2408 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2409 if(s->chroma_y_shift){//Chroma420
2410 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2411 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2414 dct_linesize = uvlinesize << s->interlaced_dct;
2415 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2417 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2418 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2419 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2420 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2421 if(!s->chroma_x_shift){//Chroma444
2422 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2423 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2424 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2425 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2430 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2431 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2434 /* dct only in intra block */
2435 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2436 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2437 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2438 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2439 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2441 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2442 if(s->chroma_y_shift){
2443 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2444 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2448 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2449 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2450 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2451 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2455 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2456 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2457 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2458 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2460 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2461 if(s->chroma_y_shift){
2462 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2463 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2466 dct_linesize = uvlinesize << s->interlaced_dct;
2467 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2469 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2470 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2471 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2472 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2473 if(!s->chroma_x_shift){//Chroma444
2474 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2475 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2476 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2477 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2485 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2486 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2487 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2488 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2494 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2497 if(s->out_format == FMT_MPEG1) {
2498 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2499 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2502 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2503 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2506 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2508 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2509 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2510 s->first_field, s->low_delay);
2513 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2514 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2515 const int uvlinesize = s->current_picture.f->linesize[1];
2516 const int mb_size= 4 - s->avctx->lowres;
2518 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2519 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2520 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2521 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2522 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2523 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;
2524 //block_index is not used by mpeg2, so it is not affected by chroma_format
2526 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
2527 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2528 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2530 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2532 if(s->picture_structure==PICT_FRAME){
2533 s->dest[0] += s->mb_y * linesize << mb_size;
2534 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2535 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2537 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2538 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2539 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2540 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2545 void ff_mpeg_flush(AVCodecContext *avctx){
2547 MpegEncContext *s = avctx->priv_data;
2549 if (!s || !s->picture)
2552 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2553 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2554 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2556 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2557 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2558 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2560 s->mb_x= s->mb_y= 0;
2563 s->parse_context.state= -1;
2564 s->parse_context.frame_start_found= 0;
2565 s->parse_context.overread= 0;
2566 s->parse_context.overread_index= 0;
2567 s->parse_context.index= 0;
2568 s->parse_context.last_index= 0;
2569 s->bitstream_buffer_size=0;
2574 * set qscale and update qscale dependent variables.
2576 void ff_set_qscale(MpegEncContext * s, int qscale)
2580 else if (qscale > 31)
2584 s->chroma_qscale= s->chroma_qscale_table[qscale];
2586 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2587 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2590 void ff_mpv_report_decode_progress(MpegEncContext *s)
2592 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2593 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);