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;
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->inter_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;
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 dependend 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 // MPEG2/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), fail); // error ressilience code looks cleaner with this
709 for (y = 0; y < s->mb_height; y++)
710 for (x = 0; x < s->mb_width; x++)
711 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
713 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
716 /* Allocate MV tables */
717 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
718 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
719 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
720 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
721 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
722 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
723 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
724 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
725 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
726 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
727 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
728 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
730 /* Allocate MB type table */
731 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
733 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
735 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
736 mb_array_size * sizeof(float), fail);
737 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
738 mb_array_size * sizeof(float), fail);
742 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
743 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
744 /* interlaced direct mode decoding tables */
745 for (i = 0; i < 2; i++) {
747 for (j = 0; j < 2; j++) {
748 for (k = 0; k < 2; k++) {
749 FF_ALLOCZ_OR_GOTO(s->avctx,
750 s->b_field_mv_table_base[i][j][k],
751 mv_table_size * 2 * sizeof(int16_t),
753 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
756 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
757 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
758 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
760 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
763 if (s->out_format == FMT_H263) {
765 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
766 s->coded_block = s->coded_block_base + s->b8_stride + 1;
768 /* cbp, ac_pred, pred_dir */
769 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
770 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
773 if (s->h263_pred || s->h263_plus || !s->encoding) {
775 // MN: we need these for error resilience of intra-frames
776 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
777 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
778 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
779 s->dc_val[2] = s->dc_val[1] + c_size;
780 for (i = 0; i < yc_size; i++)
781 s->dc_val_base[i] = 1024;
784 /* which mb is a intra block */
785 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
786 memset(s->mbintra_table, 1, mb_array_size);
788 /* init macroblock skip table */
789 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
790 // Note the + 1 is for a quicker mpeg4 slice_end detection
792 return ff_mpeg_er_init(s);
794 return AVERROR(ENOMEM);
797 static void clear_context(MpegEncContext *s)
801 memset(&s->next_picture, 0, sizeof(s->next_picture));
802 memset(&s->last_picture, 0, sizeof(s->last_picture));
803 memset(&s->current_picture, 0, sizeof(s->current_picture));
804 memset(&s->new_picture, 0, sizeof(s->new_picture));
806 memset(s->thread_context, 0, sizeof(s->thread_context));
809 s->me.score_map = NULL;
810 s->dct_error_sum = NULL;
813 memset(s->pblocks, 0, sizeof(s->pblocks));
814 s->ac_val_base = NULL;
818 s->sc.edge_emu_buffer = NULL;
819 s->me.scratchpad = NULL;
821 s->sc.rd_scratchpad =
823 s->sc.obmc_scratchpad = NULL;
825 s->parse_context.buffer = NULL;
826 s->parse_context.buffer_size = 0;
827 s->parse_context.overread = 0;
828 s->bitstream_buffer = NULL;
829 s->allocated_bitstream_buffer_size = 0;
832 s->p_mv_table_base = NULL;
833 s->b_forw_mv_table_base = NULL;
834 s->b_back_mv_table_base = NULL;
835 s->b_bidir_forw_mv_table_base = NULL;
836 s->b_bidir_back_mv_table_base = NULL;
837 s->b_direct_mv_table_base = NULL;
838 s->p_mv_table = NULL;
839 s->b_forw_mv_table = NULL;
840 s->b_back_mv_table = NULL;
841 s->b_bidir_forw_mv_table = NULL;
842 s->b_bidir_back_mv_table = NULL;
843 s->b_direct_mv_table = NULL;
844 for (i = 0; i < 2; i++) {
845 for (j = 0; j < 2; j++) {
846 for (k = 0; k < 2; k++) {
847 s->b_field_mv_table_base[i][j][k] = NULL;
848 s->b_field_mv_table[i][j][k] = NULL;
850 s->b_field_select_table[i][j] = NULL;
851 s->p_field_mv_table_base[i][j] = NULL;
852 s->p_field_mv_table[i][j] = NULL;
854 s->p_field_select_table[i] = NULL;
857 s->dc_val_base = NULL;
858 s->coded_block_base = NULL;
859 s->mbintra_table = NULL;
861 s->pred_dir_table = NULL;
863 s->mbskip_table = NULL;
865 s->er.error_status_table = NULL;
866 s->er.er_temp_buffer = NULL;
867 s->mb_index2xy = NULL;
868 s->lambda_table = NULL;
875 * init common structure for both encoder and decoder.
876 * this assumes that some variables like width/height are already set
878 av_cold int ff_mpv_common_init(MpegEncContext *s)
881 int nb_slices = (HAVE_THREADS &&
882 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
883 s->avctx->thread_count : 1;
887 if (s->encoding && s->avctx->slices)
888 nb_slices = s->avctx->slices;
890 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
891 s->mb_height = (s->height + 31) / 32 * 2;
893 s->mb_height = (s->height + 15) / 16;
895 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
896 av_log(s->avctx, AV_LOG_ERROR,
897 "decoding to AV_PIX_FMT_NONE is not supported.\n");
901 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
904 max_slices = FFMIN(MAX_THREADS, s->mb_height);
906 max_slices = MAX_THREADS;
907 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
908 " reducing to %d\n", nb_slices, max_slices);
909 nb_slices = max_slices;
912 if ((s->width || s->height) &&
913 av_image_check_size(s->width, s->height, 0, s->avctx))
918 /* set chroma shifts */
919 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
924 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
925 MAX_PICTURE_COUNT * sizeof(Picture), fail);
926 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
927 s->picture[i].f = av_frame_alloc();
928 if (!s->picture[i].f)
931 s->next_picture.f = av_frame_alloc();
932 if (!s->next_picture.f)
934 s->last_picture.f = av_frame_alloc();
935 if (!s->last_picture.f)
937 s->current_picture.f = av_frame_alloc();
938 if (!s->current_picture.f)
940 s->new_picture.f = av_frame_alloc();
941 if (!s->new_picture.f)
944 if (init_context_frame(s))
947 s->parse_context.state = -1;
949 s->context_initialized = 1;
950 memset(s->thread_context, 0, sizeof(s->thread_context));
951 s->thread_context[0] = s;
953 // if (s->width && s->height) {
955 for (i = 0; i < nb_slices; i++) {
957 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
958 if (!s->thread_context[i])
961 if (init_duplicate_context(s->thread_context[i]) < 0)
963 s->thread_context[i]->start_mb_y =
964 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
965 s->thread_context[i]->end_mb_y =
966 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
969 if (init_duplicate_context(s) < 0)
972 s->end_mb_y = s->mb_height;
974 s->slice_context_count = nb_slices;
979 ff_mpv_common_end(s);
984 * Frees and resets MpegEncContext fields depending on the resolution.
985 * Is used during resolution changes to avoid a full reinitialization of the
988 static void free_context_frame(MpegEncContext *s)
992 av_freep(&s->mb_type);
993 av_freep(&s->p_mv_table_base);
994 av_freep(&s->b_forw_mv_table_base);
995 av_freep(&s->b_back_mv_table_base);
996 av_freep(&s->b_bidir_forw_mv_table_base);
997 av_freep(&s->b_bidir_back_mv_table_base);
998 av_freep(&s->b_direct_mv_table_base);
999 s->p_mv_table = NULL;
1000 s->b_forw_mv_table = NULL;
1001 s->b_back_mv_table = NULL;
1002 s->b_bidir_forw_mv_table = NULL;
1003 s->b_bidir_back_mv_table = NULL;
1004 s->b_direct_mv_table = NULL;
1005 for (i = 0; i < 2; i++) {
1006 for (j = 0; j < 2; j++) {
1007 for (k = 0; k < 2; k++) {
1008 av_freep(&s->b_field_mv_table_base[i][j][k]);
1009 s->b_field_mv_table[i][j][k] = NULL;
1011 av_freep(&s->b_field_select_table[i][j]);
1012 av_freep(&s->p_field_mv_table_base[i][j]);
1013 s->p_field_mv_table[i][j] = NULL;
1015 av_freep(&s->p_field_select_table[i]);
1018 av_freep(&s->dc_val_base);
1019 av_freep(&s->coded_block_base);
1020 av_freep(&s->mbintra_table);
1021 av_freep(&s->cbp_table);
1022 av_freep(&s->pred_dir_table);
1024 av_freep(&s->mbskip_table);
1026 av_freep(&s->er.error_status_table);
1027 av_freep(&s->er.er_temp_buffer);
1028 av_freep(&s->mb_index2xy);
1029 av_freep(&s->lambda_table);
1031 av_freep(&s->cplx_tab);
1032 av_freep(&s->bits_tab);
1034 s->linesize = s->uvlinesize = 0;
1037 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1041 if (!s->context_initialized)
1042 return AVERROR(EINVAL);
1044 if (s->slice_context_count > 1) {
1045 for (i = 0; i < s->slice_context_count; i++) {
1046 free_duplicate_context(s->thread_context[i]);
1048 for (i = 1; i < s->slice_context_count; i++) {
1049 av_freep(&s->thread_context[i]);
1052 free_duplicate_context(s);
1054 free_context_frame(s);
1057 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1058 s->picture[i].needs_realloc = 1;
1061 s->last_picture_ptr =
1062 s->next_picture_ptr =
1063 s->current_picture_ptr = NULL;
1066 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1067 s->mb_height = (s->height + 31) / 32 * 2;
1069 s->mb_height = (s->height + 15) / 16;
1071 if ((s->width || s->height) &&
1072 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1075 if ((err = init_context_frame(s)))
1078 memset(s->thread_context, 0, sizeof(s->thread_context));
1079 s->thread_context[0] = s;
1081 if (s->width && s->height) {
1082 int nb_slices = s->slice_context_count;
1083 if (nb_slices > 1) {
1084 for (i = 0; i < nb_slices; i++) {
1086 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1087 if (!s->thread_context[i]) {
1088 err = AVERROR(ENOMEM);
1092 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1094 s->thread_context[i]->start_mb_y =
1095 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1096 s->thread_context[i]->end_mb_y =
1097 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1100 err = init_duplicate_context(s);
1104 s->end_mb_y = s->mb_height;
1106 s->slice_context_count = nb_slices;
1111 ff_mpv_common_end(s);
1115 /* init common structure for both encoder and decoder */
1116 void ff_mpv_common_end(MpegEncContext *s)
1123 if (s->slice_context_count > 1) {
1124 for (i = 0; i < s->slice_context_count; i++) {
1125 free_duplicate_context(s->thread_context[i]);
1127 for (i = 1; i < s->slice_context_count; i++) {
1128 av_freep(&s->thread_context[i]);
1130 s->slice_context_count = 1;
1131 } else free_duplicate_context(s);
1133 av_freep(&s->parse_context.buffer);
1134 s->parse_context.buffer_size = 0;
1136 av_freep(&s->bitstream_buffer);
1137 s->allocated_bitstream_buffer_size = 0;
1140 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1141 ff_free_picture_tables(&s->picture[i]);
1142 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1143 av_frame_free(&s->picture[i].f);
1146 av_freep(&s->picture);
1147 ff_free_picture_tables(&s->last_picture);
1148 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1149 av_frame_free(&s->last_picture.f);
1150 ff_free_picture_tables(&s->current_picture);
1151 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1152 av_frame_free(&s->current_picture.f);
1153 ff_free_picture_tables(&s->next_picture);
1154 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1155 av_frame_free(&s->next_picture.f);
1156 ff_free_picture_tables(&s->new_picture);
1157 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1158 av_frame_free(&s->new_picture.f);
1160 free_context_frame(s);
1162 s->context_initialized = 0;
1163 s->last_picture_ptr =
1164 s->next_picture_ptr =
1165 s->current_picture_ptr = NULL;
1166 s->linesize = s->uvlinesize = 0;
1170 static void gray_frame(AVFrame *frame)
1172 int i, h_chroma_shift, v_chroma_shift;
1174 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1176 for(i=0; i<frame->height; i++)
1177 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1178 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1179 memset(frame->data[1] + frame->linesize[1]*i,
1180 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1181 memset(frame->data[2] + frame->linesize[2]*i,
1182 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1187 * generic function called after decoding
1188 * the header and before a frame is decoded.
1190 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1196 if (!ff_thread_can_start_frame(avctx)) {
1197 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1201 /* mark & release old frames */
1202 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1203 s->last_picture_ptr != s->next_picture_ptr &&
1204 s->last_picture_ptr->f->buf[0]) {
1205 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1208 /* release forgotten pictures */
1209 /* if (mpeg124/h263) */
1210 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1211 if (&s->picture[i] != s->last_picture_ptr &&
1212 &s->picture[i] != s->next_picture_ptr &&
1213 s->picture[i].reference && !s->picture[i].needs_realloc) {
1214 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1218 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1220 /* release non reference frames */
1221 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1222 if (!s->picture[i].reference)
1223 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1226 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1227 // we already have a unused image
1228 // (maybe it was set before reading the header)
1229 pic = s->current_picture_ptr;
1231 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1233 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1236 pic = &s->picture[i];
1240 if (!s->droppable) {
1241 if (s->pict_type != AV_PICTURE_TYPE_B)
1245 pic->f->coded_picture_number = s->coded_picture_number++;
1247 if (alloc_picture(s, pic, 0) < 0)
1250 s->current_picture_ptr = pic;
1251 // FIXME use only the vars from current_pic
1252 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1253 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1254 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1255 if (s->picture_structure != PICT_FRAME)
1256 s->current_picture_ptr->f->top_field_first =
1257 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1259 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1260 !s->progressive_sequence;
1261 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1263 s->current_picture_ptr->f->pict_type = s->pict_type;
1264 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1265 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1266 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1268 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1269 s->current_picture_ptr)) < 0)
1272 if (s->pict_type != AV_PICTURE_TYPE_B) {
1273 s->last_picture_ptr = s->next_picture_ptr;
1275 s->next_picture_ptr = s->current_picture_ptr;
1277 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1278 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1279 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1280 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1281 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1282 s->pict_type, s->droppable);
1284 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1285 (s->pict_type != AV_PICTURE_TYPE_I ||
1286 s->picture_structure != PICT_FRAME)) {
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");
1296 else if (s->picture_structure != PICT_FRAME)
1297 av_log(avctx, AV_LOG_DEBUG,
1298 "allocate dummy last picture for field based first keyframe\n");
1300 /* Allocate a dummy frame */
1301 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1303 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1306 s->last_picture_ptr = &s->picture[i];
1308 s->last_picture_ptr->reference = 3;
1309 s->last_picture_ptr->f->key_frame = 0;
1310 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1312 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1313 s->last_picture_ptr = NULL;
1318 #if FF_API_CAP_VDPAU
1319 && !(avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1322 for(i=0; i<avctx->height; i++)
1323 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1324 0x80, avctx->width);
1325 if (s->last_picture_ptr->f->data[2]) {
1326 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1327 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1328 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1329 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1330 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1334 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1335 for(i=0; i<avctx->height; i++)
1336 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1340 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1341 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1343 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1344 s->pict_type == AV_PICTURE_TYPE_B) {
1345 /* Allocate a dummy frame */
1346 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1348 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1351 s->next_picture_ptr = &s->picture[i];
1353 s->next_picture_ptr->reference = 3;
1354 s->next_picture_ptr->f->key_frame = 0;
1355 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1357 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1358 s->next_picture_ptr = NULL;
1361 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1362 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1365 #if 0 // BUFREF-FIXME
1366 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1367 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1369 if (s->last_picture_ptr) {
1370 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1371 if (s->last_picture_ptr->f->buf[0] &&
1372 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1373 s->last_picture_ptr)) < 0)
1376 if (s->next_picture_ptr) {
1377 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
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)
1384 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1385 s->last_picture_ptr->f->buf[0]));
1387 if (s->picture_structure!= PICT_FRAME) {
1389 for (i = 0; i < 4; i++) {
1390 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1391 s->current_picture.f->data[i] +=
1392 s->current_picture.f->linesize[i];
1394 s->current_picture.f->linesize[i] *= 2;
1395 s->last_picture.f->linesize[i] *= 2;
1396 s->next_picture.f->linesize[i] *= 2;
1400 /* set dequantizer, we can't do it during init as
1401 * it might change for mpeg4 and we can't do it in the header
1402 * decode as init is not called for mpeg4 there yet */
1403 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1404 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1405 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1406 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1407 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1408 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1410 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1411 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1414 if (s->avctx->debug & FF_DEBUG_NOMC) {
1415 gray_frame(s->current_picture_ptr->f);
1421 /* called after a frame has been decoded. */
1422 void ff_mpv_frame_end(MpegEncContext *s)
1426 if (s->current_picture.reference)
1427 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1432 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
1435 return clip_line(ex, ey, sx, sy, maxx);
1440 *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
1447 *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
1455 * Draw a line from (ex, ey) -> (sx, sy).
1456 * @param w width of the image
1457 * @param h height of the image
1458 * @param stride stride/linesize of the image
1459 * @param color color of the arrow
1461 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1462 int w, int h, int stride, int color)
1466 if (clip_line(&sx, &sy, &ex, &ey, w - 1))
1468 if (clip_line(&sy, &sx, &ey, &ex, h - 1))
1471 sx = av_clip(sx, 0, w - 1);
1472 sy = av_clip(sy, 0, h - 1);
1473 ex = av_clip(ex, 0, w - 1);
1474 ey = av_clip(ey, 0, h - 1);
1476 buf[sy * stride + sx] += color;
1478 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1480 FFSWAP(int, sx, ex);
1481 FFSWAP(int, sy, ey);
1483 buf += sx + sy * stride;
1485 f = ((ey - sy) << 16) / ex;
1486 for (x = 0; x <= ex; x++) {
1488 fr = (x * f) & 0xFFFF;
1489 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1490 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1494 FFSWAP(int, sx, ex);
1495 FFSWAP(int, sy, ey);
1497 buf += sx + sy * stride;
1500 f = ((ex - sx) << 16) / ey;
1503 for(y= 0; y <= ey; y++){
1505 fr = (y*f) & 0xFFFF;
1506 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1507 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1513 * Draw an arrow from (ex, ey) -> (sx, sy).
1514 * @param w width of the image
1515 * @param h height of the image
1516 * @param stride stride/linesize of the image
1517 * @param color color of the arrow
1519 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1520 int ey, int w, int h, int stride, int color, int tail, int direction)
1525 FFSWAP(int, sx, ex);
1526 FFSWAP(int, sy, ey);
1529 sx = av_clip(sx, -100, w + 100);
1530 sy = av_clip(sy, -100, h + 100);
1531 ex = av_clip(ex, -100, w + 100);
1532 ey = av_clip(ey, -100, h + 100);
1537 if (dx * dx + dy * dy > 3 * 3) {
1540 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1542 // FIXME subpixel accuracy
1543 rx = ROUNDED_DIV(rx * 3 << 4, length);
1544 ry = ROUNDED_DIV(ry * 3 << 4, length);
1551 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1552 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1554 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1558 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
1559 int dst_x, int dst_y,
1560 int motion_x, int motion_y, int motion_scale,
1563 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
1564 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
1565 mb->motion_x = motion_x;
1566 mb->motion_y = motion_y;
1567 mb->motion_scale = motion_scale;
1570 mb->src_x = dst_x + motion_x / motion_scale;
1571 mb->src_y = dst_y + motion_y / motion_scale;
1572 mb->source = direction ? 1 : -1;
1573 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
1578 * Print debugging info for the given picture.
1580 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1581 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1583 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1585 if ((avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
1586 const int shift = 1 + quarter_sample;
1587 const int scale = 1 << shift;
1588 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1589 const int mv_stride = (mb_width << mv_sample_log2) +
1590 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1591 int mb_x, mb_y, mbcount = 0;
1593 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
1594 * for the maximum number of MB (4 MB in case of IS_8x8) */
1595 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
1599 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1600 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1601 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
1602 for (direction = 0; direction < 2; direction++) {
1603 if (!USES_LIST(mb_type, direction))
1605 if (IS_8X8(mb_type)) {
1606 for (i = 0; i < 4; i++) {
1607 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1608 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1609 int xy = (mb_x * 2 + (i & 1) +
1610 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1611 int mx = motion_val[direction][xy][0];
1612 int my = motion_val[direction][xy][1];
1613 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1615 } else if (IS_16X8(mb_type)) {
1616 for (i = 0; i < 2; i++) {
1617 int sx = mb_x * 16 + 8;
1618 int sy = mb_y * 16 + 4 + 8 * i;
1619 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1620 int mx = motion_val[direction][xy][0];
1621 int my = motion_val[direction][xy][1];
1623 if (IS_INTERLACED(mb_type))
1626 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1628 } else if (IS_8X16(mb_type)) {
1629 for (i = 0; i < 2; i++) {
1630 int sx = mb_x * 16 + 4 + 8 * i;
1631 int sy = mb_y * 16 + 8;
1632 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1633 int mx = motion_val[direction][xy][0];
1634 int my = motion_val[direction][xy][1];
1636 if (IS_INTERLACED(mb_type))
1639 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1642 int sx = mb_x * 16 + 8;
1643 int sy = mb_y * 16 + 8;
1644 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
1645 int mx = motion_val[direction][xy][0];
1646 int my = motion_val[direction][xy][1];
1647 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, scale, direction);
1654 AVFrameSideData *sd;
1656 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
1657 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
1662 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
1668 /* TODO: export all the following to make them accessible for users (and filters) */
1669 if (avctx->hwaccel || !mbtype_table
1670 #if FF_API_CAP_VDPAU
1671 || (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU)
1677 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1680 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1681 av_get_picture_type_char(pict->pict_type));
1682 for (y = 0; y < mb_height; y++) {
1683 for (x = 0; x < mb_width; x++) {
1684 if (avctx->debug & FF_DEBUG_SKIP) {
1685 int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
1688 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1690 if (avctx->debug & FF_DEBUG_QP) {
1691 av_log(avctx, AV_LOG_DEBUG, "%2d",
1692 qscale_table[x + y * mb_stride]);
1694 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1695 int mb_type = mbtype_table[x + y * mb_stride];
1696 // Type & MV direction
1697 if (IS_PCM(mb_type))
1698 av_log(avctx, AV_LOG_DEBUG, "P");
1699 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1700 av_log(avctx, AV_LOG_DEBUG, "A");
1701 else if (IS_INTRA4x4(mb_type))
1702 av_log(avctx, AV_LOG_DEBUG, "i");
1703 else if (IS_INTRA16x16(mb_type))
1704 av_log(avctx, AV_LOG_DEBUG, "I");
1705 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1706 av_log(avctx, AV_LOG_DEBUG, "d");
1707 else if (IS_DIRECT(mb_type))
1708 av_log(avctx, AV_LOG_DEBUG, "D");
1709 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1710 av_log(avctx, AV_LOG_DEBUG, "g");
1711 else if (IS_GMC(mb_type))
1712 av_log(avctx, AV_LOG_DEBUG, "G");
1713 else if (IS_SKIP(mb_type))
1714 av_log(avctx, AV_LOG_DEBUG, "S");
1715 else if (!USES_LIST(mb_type, 1))
1716 av_log(avctx, AV_LOG_DEBUG, ">");
1717 else if (!USES_LIST(mb_type, 0))
1718 av_log(avctx, AV_LOG_DEBUG, "<");
1720 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1721 av_log(avctx, AV_LOG_DEBUG, "X");
1725 if (IS_8X8(mb_type))
1726 av_log(avctx, AV_LOG_DEBUG, "+");
1727 else if (IS_16X8(mb_type))
1728 av_log(avctx, AV_LOG_DEBUG, "-");
1729 else if (IS_8X16(mb_type))
1730 av_log(avctx, AV_LOG_DEBUG, "|");
1731 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1732 av_log(avctx, AV_LOG_DEBUG, " ");
1734 av_log(avctx, AV_LOG_DEBUG, "?");
1737 if (IS_INTERLACED(mb_type))
1738 av_log(avctx, AV_LOG_DEBUG, "=");
1740 av_log(avctx, AV_LOG_DEBUG, " ");
1743 av_log(avctx, AV_LOG_DEBUG, "\n");
1747 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1748 (avctx->debug_mv)) {
1751 int h_chroma_shift, v_chroma_shift, block_height;
1753 const int shift = 1 + quarter_sample;
1755 const int width = avctx->width;
1756 const int height = avctx->height;
1758 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1759 const int mv_stride = (mb_width << mv_sample_log2) +
1760 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1762 *low_delay = 0; // needed to see the vectors without trashing the buffers
1764 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1766 av_frame_make_writable(pict);
1768 pict->opaque = NULL;
1770 ptr = pict->data[0];
1772 block_height = 16 >> v_chroma_shift;
1774 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1776 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1777 const int mb_index = mb_x + mb_y * mb_stride;
1779 if ((avctx->debug_mv) && motion_val[0]) {
1781 for (type = 0; type < 3; type++) {
1785 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
1786 (pict->pict_type!= AV_PICTURE_TYPE_P))
1791 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
1792 (pict->pict_type!= AV_PICTURE_TYPE_B))
1797 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
1798 (pict->pict_type!= AV_PICTURE_TYPE_B))
1803 if (!USES_LIST(mbtype_table[mb_index], direction))
1806 if (IS_8X8(mbtype_table[mb_index])) {
1808 for (i = 0; i < 4; i++) {
1809 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1810 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1811 int xy = (mb_x * 2 + (i & 1) +
1812 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1813 int mx = (motion_val[direction][xy][0] >> shift) + sx;
1814 int my = (motion_val[direction][xy][1] >> shift) + sy;
1815 draw_arrow(ptr, sx, sy, mx, my, width,
1816 height, pict->linesize[0], 100, 0, direction);
1818 } else if (IS_16X8(mbtype_table[mb_index])) {
1820 for (i = 0; i < 2; i++) {
1821 int sx = mb_x * 16 + 8;
1822 int sy = mb_y * 16 + 4 + 8 * i;
1823 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1824 int mx = (motion_val[direction][xy][0] >> shift);
1825 int my = (motion_val[direction][xy][1] >> shift);
1827 if (IS_INTERLACED(mbtype_table[mb_index]))
1830 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1831 height, pict->linesize[0], 100, 0, direction);
1833 } else if (IS_8X16(mbtype_table[mb_index])) {
1835 for (i = 0; i < 2; i++) {
1836 int sx = mb_x * 16 + 4 + 8 * i;
1837 int sy = mb_y * 16 + 8;
1838 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1839 int mx = motion_val[direction][xy][0] >> shift;
1840 int my = motion_val[direction][xy][1] >> shift;
1842 if (IS_INTERLACED(mbtype_table[mb_index]))
1845 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1846 height, pict->linesize[0], 100, 0, direction);
1849 int sx= mb_x * 16 + 8;
1850 int sy= mb_y * 16 + 8;
1851 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
1852 int mx= (motion_val[direction][xy][0]>>shift) + sx;
1853 int my= (motion_val[direction][xy][1]>>shift) + sy;
1854 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
1859 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
1860 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
1861 0x0101010101010101ULL;
1863 for (y = 0; y < block_height; y++) {
1864 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1865 (block_height * mb_y + y) *
1866 pict->linesize[1]) = c;
1867 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1868 (block_height * mb_y + y) *
1869 pict->linesize[2]) = c;
1872 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
1874 int mb_type = mbtype_table[mb_index];
1877 #define COLOR(theta, r) \
1878 u = (int)(128 + r * cos(theta * M_PI / 180)); \
1879 v = (int)(128 + r * sin(theta * M_PI / 180));
1883 if (IS_PCM(mb_type)) {
1885 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
1886 IS_INTRA16x16(mb_type)) {
1888 } else if (IS_INTRA4x4(mb_type)) {
1890 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
1892 } else if (IS_DIRECT(mb_type)) {
1894 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
1896 } else if (IS_GMC(mb_type)) {
1898 } else if (IS_SKIP(mb_type)) {
1900 } else if (!USES_LIST(mb_type, 1)) {
1902 } else if (!USES_LIST(mb_type, 0)) {
1905 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1909 u *= 0x0101010101010101ULL;
1910 v *= 0x0101010101010101ULL;
1911 for (y = 0; y < block_height; y++) {
1912 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1913 (block_height * mb_y + y) * pict->linesize[1]) = u;
1914 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1915 (block_height * mb_y + y) * pict->linesize[2]) = v;
1919 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
1920 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
1921 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1922 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
1923 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1925 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
1926 for (y = 0; y < 16; y++)
1927 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
1928 pict->linesize[0]] ^= 0x80;
1930 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
1931 int dm = 1 << (mv_sample_log2 - 2);
1932 for (i = 0; i < 4; i++) {
1933 int sx = mb_x * 16 + 8 * (i & 1);
1934 int sy = mb_y * 16 + 8 * (i >> 1);
1935 int xy = (mb_x * 2 + (i & 1) +
1936 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1938 int32_t *mv = (int32_t *) &motion_val[0][xy];
1939 if (mv[0] != mv[dm] ||
1940 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
1941 for (y = 0; y < 8; y++)
1942 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
1943 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
1944 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
1945 pict->linesize[0]) ^= 0x8080808080808080ULL;
1949 if (IS_INTERLACED(mb_type) &&
1950 avctx->codec->id == AV_CODEC_ID_H264) {
1955 mbskip_table[mb_index] = 0;
1961 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1963 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1964 p->qscale_table, p->motion_val, &s->low_delay,
1965 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1968 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1970 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1971 int offset = 2*s->mb_stride + 1;
1973 return AVERROR(ENOMEM);
1974 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1975 ref->size -= offset;
1976 ref->data += offset;
1977 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1980 static inline int hpel_motion_lowres(MpegEncContext *s,
1981 uint8_t *dest, uint8_t *src,
1982 int field_based, int field_select,
1983 int src_x, int src_y,
1984 int width, int height, ptrdiff_t stride,
1985 int h_edge_pos, int v_edge_pos,
1986 int w, int h, h264_chroma_mc_func *pix_op,
1987 int motion_x, int motion_y)
1989 const int lowres = s->avctx->lowres;
1990 const int op_index = FFMIN(lowres, 3);
1991 const int s_mask = (2 << lowres) - 1;
1995 if (s->quarter_sample) {
2000 sx = motion_x & s_mask;
2001 sy = motion_y & s_mask;
2002 src_x += motion_x >> lowres + 1;
2003 src_y += motion_y >> lowres + 1;
2005 src += src_y * stride + src_x;
2007 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2008 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2009 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
2010 s->linesize, s->linesize,
2011 w + 1, (h + 1) << field_based,
2012 src_x, src_y << field_based,
2013 h_edge_pos, v_edge_pos);
2014 src = s->sc.edge_emu_buffer;
2018 sx = (sx << 2) >> lowres;
2019 sy = (sy << 2) >> lowres;
2022 pix_op[op_index](dest, src, stride, h, sx, sy);
2026 /* apply one mpeg motion vector to the three components */
2027 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2034 uint8_t **ref_picture,
2035 h264_chroma_mc_func *pix_op,
2036 int motion_x, int motion_y,
2039 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2040 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2041 ptrdiff_t uvlinesize, linesize;
2042 const int lowres = s->avctx->lowres;
2043 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2044 const int block_s = 8>>lowres;
2045 const int s_mask = (2 << lowres) - 1;
2046 const int h_edge_pos = s->h_edge_pos >> lowres;
2047 const int v_edge_pos = s->v_edge_pos >> lowres;
2048 linesize = s->current_picture.f->linesize[0] << field_based;
2049 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2051 // FIXME obviously not perfect but qpel will not work in lowres anyway
2052 if (s->quarter_sample) {
2058 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2061 sx = motion_x & s_mask;
2062 sy = motion_y & s_mask;
2063 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2064 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2066 if (s->out_format == FMT_H263) {
2067 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2068 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2069 uvsrc_x = src_x >> 1;
2070 uvsrc_y = src_y >> 1;
2071 } else if (s->out_format == FMT_H261) {
2072 // even chroma mv's are full pel in H261
2075 uvsx = (2 * mx) & s_mask;
2076 uvsy = (2 * my) & s_mask;
2077 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2078 uvsrc_y = mb_y * block_s + (my >> lowres);
2080 if(s->chroma_y_shift){
2085 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2086 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2088 if(s->chroma_x_shift){
2092 uvsy = motion_y & s_mask;
2094 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2097 uvsx = motion_x & s_mask;
2098 uvsy = motion_y & s_mask;
2105 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2106 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2107 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2109 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2110 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2111 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
2112 linesize >> field_based, linesize >> field_based,
2113 17, 17 + field_based,
2114 src_x, src_y << field_based, h_edge_pos,
2116 ptr_y = s->sc.edge_emu_buffer;
2117 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2118 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
2119 uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
2120 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2121 uvlinesize >> field_based, uvlinesize >> field_based,
2123 uvsrc_x, uvsrc_y << field_based,
2124 h_edge_pos >> 1, v_edge_pos >> 1);
2125 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2126 uvlinesize >> field_based,uvlinesize >> field_based,
2128 uvsrc_x, uvsrc_y << field_based,
2129 h_edge_pos >> 1, v_edge_pos >> 1);
2135 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2137 dest_y += s->linesize;
2138 dest_cb += s->uvlinesize;
2139 dest_cr += s->uvlinesize;
2143 ptr_y += s->linesize;
2144 ptr_cb += s->uvlinesize;
2145 ptr_cr += s->uvlinesize;
2148 sx = (sx << 2) >> lowres;
2149 sy = (sy << 2) >> lowres;
2150 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2152 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2153 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2154 uvsx = (uvsx << 2) >> lowres;
2155 uvsy = (uvsy << 2) >> lowres;
2157 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2158 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2161 // FIXME h261 lowres loop filter
2164 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2165 uint8_t *dest_cb, uint8_t *dest_cr,
2166 uint8_t **ref_picture,
2167 h264_chroma_mc_func * pix_op,
2170 const int lowres = s->avctx->lowres;
2171 const int op_index = FFMIN(lowres, 3);
2172 const int block_s = 8 >> lowres;
2173 const int s_mask = (2 << lowres) - 1;
2174 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2175 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2176 int emu = 0, src_x, src_y, sx, sy;
2180 if (s->quarter_sample) {
2185 /* In case of 8X8, we construct a single chroma motion vector
2186 with a special rounding */
2187 mx = ff_h263_round_chroma(mx);
2188 my = ff_h263_round_chroma(my);
2192 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2193 src_y = s->mb_y * block_s + (my >> lowres + 1);
2195 offset = src_y * s->uvlinesize + src_x;
2196 ptr = ref_picture[1] + offset;
2197 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2198 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2199 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
2200 s->uvlinesize, s->uvlinesize,
2202 src_x, src_y, h_edge_pos, v_edge_pos);
2203 ptr = s->sc.edge_emu_buffer;
2206 sx = (sx << 2) >> lowres;
2207 sy = (sy << 2) >> lowres;
2208 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2210 ptr = ref_picture[2] + offset;
2212 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
2213 s->uvlinesize, s->uvlinesize,
2215 src_x, src_y, h_edge_pos, v_edge_pos);
2216 ptr = s->sc.edge_emu_buffer;
2218 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2222 * motion compensation of a single macroblock
2224 * @param dest_y luma destination pointer
2225 * @param dest_cb chroma cb/u destination pointer
2226 * @param dest_cr chroma cr/v destination pointer
2227 * @param dir direction (0->forward, 1->backward)
2228 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2229 * @param pix_op halfpel motion compensation function (average or put normally)
2230 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2232 static inline void MPV_motion_lowres(MpegEncContext *s,
2233 uint8_t *dest_y, uint8_t *dest_cb,
2235 int dir, uint8_t **ref_picture,
2236 h264_chroma_mc_func *pix_op)
2240 const int lowres = s->avctx->lowres;
2241 const int block_s = 8 >>lowres;
2246 switch (s->mv_type) {
2248 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2250 ref_picture, pix_op,
2251 s->mv[dir][0][0], s->mv[dir][0][1],
2257 for (i = 0; i < 4; i++) {
2258 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2259 s->linesize) * block_s,
2260 ref_picture[0], 0, 0,
2261 (2 * mb_x + (i & 1)) * block_s,
2262 (2 * mb_y + (i >> 1)) * block_s,
2263 s->width, s->height, s->linesize,
2264 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2265 block_s, block_s, pix_op,
2266 s->mv[dir][i][0], s->mv[dir][i][1]);
2268 mx += s->mv[dir][i][0];
2269 my += s->mv[dir][i][1];
2272 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
2273 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2277 if (s->picture_structure == PICT_FRAME) {
2279 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2280 1, 0, s->field_select[dir][0],
2281 ref_picture, pix_op,
2282 s->mv[dir][0][0], s->mv[dir][0][1],
2285 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2286 1, 1, s->field_select[dir][1],
2287 ref_picture, pix_op,
2288 s->mv[dir][1][0], s->mv[dir][1][1],
2291 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2292 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2293 ref_picture = s->current_picture_ptr->f->data;
2296 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2297 0, 0, s->field_select[dir][0],
2298 ref_picture, pix_op,
2300 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2304 for (i = 0; i < 2; i++) {
2305 uint8_t **ref2picture;
2307 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2308 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2309 ref2picture = ref_picture;
2311 ref2picture = s->current_picture_ptr->f->data;
2314 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2315 0, 0, s->field_select[dir][i],
2316 ref2picture, pix_op,
2317 s->mv[dir][i][0], s->mv[dir][i][1] +
2318 2 * block_s * i, block_s, mb_y >> 1);
2320 dest_y += 2 * block_s * s->linesize;
2321 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2322 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2326 if (s->picture_structure == PICT_FRAME) {
2327 for (i = 0; i < 2; i++) {
2329 for (j = 0; j < 2; j++) {
2330 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2332 ref_picture, pix_op,
2333 s->mv[dir][2 * i + j][0],
2334 s->mv[dir][2 * i + j][1],
2337 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2340 for (i = 0; i < 2; i++) {
2341 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2342 0, 0, s->picture_structure != i + 1,
2343 ref_picture, pix_op,
2344 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2345 2 * block_s, mb_y >> 1);
2347 // after put we make avg of the same block
2348 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2350 // opposite parity is always in the same
2351 // frame if this is second field
2352 if (!s->first_field) {
2353 ref_picture = s->current_picture_ptr->f->data;
2364 * find the lowest MB row referenced in the MVs
2366 static int lowest_referenced_row(MpegEncContext *s, int dir)
2368 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2369 int my, off, i, mvs;
2371 if (s->picture_structure != PICT_FRAME || s->mcsel)
2374 switch (s->mv_type) {
2388 for (i = 0; i < mvs; i++) {
2389 my = s->mv[dir][i][1];
2390 my_max = FFMAX(my_max, my);
2391 my_min = FFMIN(my_min, my);
2394 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
2396 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
2398 return s->mb_height-1;
2401 /* put block[] to dest[] */
2402 static inline void put_dct(MpegEncContext *s,
2403 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2405 s->dct_unquantize_intra(s, block, i, qscale);
2406 s->idsp.idct_put(dest, line_size, block);
2409 /* add block[] to dest[] */
2410 static inline void add_dct(MpegEncContext *s,
2411 int16_t *block, int i, uint8_t *dest, int line_size)
2413 if (s->block_last_index[i] >= 0) {
2414 s->idsp.idct_add(dest, line_size, block);
2418 static inline void add_dequant_dct(MpegEncContext *s,
2419 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2421 if (s->block_last_index[i] >= 0) {
2422 s->dct_unquantize_inter(s, block, i, qscale);
2424 s->idsp.idct_add(dest, line_size, block);
2429 * Clean dc, ac, coded_block for the current non-intra MB.
2431 void ff_clean_intra_table_entries(MpegEncContext *s)
2433 int wrap = s->b8_stride;
2434 int xy = s->block_index[0];
2437 s->dc_val[0][xy + 1 ] =
2438 s->dc_val[0][xy + wrap] =
2439 s->dc_val[0][xy + 1 + wrap] = 1024;
2441 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2442 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2443 if (s->msmpeg4_version>=3) {
2444 s->coded_block[xy ] =
2445 s->coded_block[xy + 1 ] =
2446 s->coded_block[xy + wrap] =
2447 s->coded_block[xy + 1 + wrap] = 0;
2450 wrap = s->mb_stride;
2451 xy = s->mb_x + s->mb_y * wrap;
2453 s->dc_val[2][xy] = 1024;
2455 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2456 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2458 s->mbintra_table[xy]= 0;
2461 /* generic function called after a macroblock has been parsed by the
2462 decoder or after it has been encoded by the encoder.
2464 Important variables used:
2465 s->mb_intra : true if intra macroblock
2466 s->mv_dir : motion vector direction
2467 s->mv_type : motion vector type
2468 s->mv : motion vector
2469 s->interlaced_dct : true if interlaced dct used (mpeg2)
2471 static av_always_inline
2472 void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2473 int lowres_flag, int is_mpeg12)
2475 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2478 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2479 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2483 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2484 /* print DCT coefficients */
2486 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2488 for(j=0; j<64; j++){
2489 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
2490 block[i][s->idsp.idct_permutation[j]]);
2492 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2496 s->current_picture.qscale_table[mb_xy] = s->qscale;
2498 /* update DC predictors for P macroblocks */
2500 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2501 if(s->mbintra_table[mb_xy])
2502 ff_clean_intra_table_entries(s);
2506 s->last_dc[2] = 128 << s->intra_dc_precision;
2509 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2510 s->mbintra_table[mb_xy]=1;
2512 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
2513 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2514 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2515 uint8_t *dest_y, *dest_cb, *dest_cr;
2516 int dct_linesize, dct_offset;
2517 op_pixels_func (*op_pix)[4];
2518 qpel_mc_func (*op_qpix)[16];
2519 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2520 const int uvlinesize = s->current_picture.f->linesize[1];
2521 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2522 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2524 /* avoid copy if macroblock skipped in last frame too */
2525 /* skip only during decoding as we might trash the buffers during encoding a bit */
2527 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2529 if (s->mb_skipped) {
2531 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2533 } else if(!s->current_picture.reference) {
2536 *mbskip_ptr = 0; /* not skipped */
2540 dct_linesize = linesize << s->interlaced_dct;
2541 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2545 dest_cb= s->dest[1];
2546 dest_cr= s->dest[2];
2548 dest_y = s->sc.b_scratchpad;
2549 dest_cb= s->sc.b_scratchpad+16*linesize;
2550 dest_cr= s->sc.b_scratchpad+32*linesize;
2554 /* motion handling */
2555 /* decoding or more than one mb_type (MC was already done otherwise) */
2558 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2559 if (s->mv_dir & MV_DIR_FORWARD) {
2560 ff_thread_await_progress(&s->last_picture_ptr->tf,
2561 lowest_referenced_row(s, 0),
2564 if (s->mv_dir & MV_DIR_BACKWARD) {
2565 ff_thread_await_progress(&s->next_picture_ptr->tf,
2566 lowest_referenced_row(s, 1),
2572 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2574 if (s->mv_dir & MV_DIR_FORWARD) {
2575 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2576 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2578 if (s->mv_dir & MV_DIR_BACKWARD) {
2579 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2582 op_qpix = s->me.qpel_put;
2583 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2584 op_pix = s->hdsp.put_pixels_tab;
2586 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2588 if (s->mv_dir & MV_DIR_FORWARD) {
2589 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2590 op_pix = s->hdsp.avg_pixels_tab;
2591 op_qpix= s->me.qpel_avg;
2593 if (s->mv_dir & MV_DIR_BACKWARD) {
2594 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2599 /* skip dequant / idct if we are really late ;) */
2600 if(s->avctx->skip_idct){
2601 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2602 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2603 || s->avctx->skip_idct >= AVDISCARD_ALL)
2607 /* add dct residue */
2608 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2609 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2610 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2611 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2612 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2613 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2615 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2616 if (s->chroma_y_shift){
2617 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2618 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2622 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2623 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2624 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2625 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2628 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2629 add_dct(s, block[0], 0, dest_y , dct_linesize);
2630 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2631 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2632 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2634 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2635 if(s->chroma_y_shift){//Chroma420
2636 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2637 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2640 dct_linesize = uvlinesize << s->interlaced_dct;
2641 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2643 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2644 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2645 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2646 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2647 if(!s->chroma_x_shift){//Chroma444
2648 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2649 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2650 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2651 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2656 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2657 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2660 /* dct only in intra block */
2661 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2662 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2663 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2664 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2665 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2667 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2668 if(s->chroma_y_shift){
2669 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2670 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2674 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2675 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2676 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2677 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2681 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2682 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2683 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2684 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2686 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2687 if(s->chroma_y_shift){
2688 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2689 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2692 dct_linesize = uvlinesize << s->interlaced_dct;
2693 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2695 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2696 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2697 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2698 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2699 if(!s->chroma_x_shift){//Chroma444
2700 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2701 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2702 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2703 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2711 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2712 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2713 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2714 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2720 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
2723 if(s->out_format == FMT_MPEG1) {
2724 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 1);
2725 else mpv_decode_mb_internal(s, block, 0, 1);
2728 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 0);
2729 else mpv_decode_mb_internal(s, block, 0, 0);
2732 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2734 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2735 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2736 s->first_field, s->low_delay);
2739 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2740 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2741 const int uvlinesize = s->current_picture.f->linesize[1];
2742 const int mb_size= 4 - s->avctx->lowres;
2744 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2745 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2746 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2747 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2748 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2749 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;
2750 //block_index is not used by mpeg2, so it is not affected by chroma_format
2752 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
2753 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2754 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2756 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2758 if(s->picture_structure==PICT_FRAME){
2759 s->dest[0] += s->mb_y * linesize << mb_size;
2760 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2761 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2763 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2764 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2765 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2766 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2771 void ff_mpeg_flush(AVCodecContext *avctx){
2773 MpegEncContext *s = avctx->priv_data;
2775 if (!s || !s->picture)
2778 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2779 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2780 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2782 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2783 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2784 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2786 s->mb_x= s->mb_y= 0;
2789 s->parse_context.state= -1;
2790 s->parse_context.frame_start_found= 0;
2791 s->parse_context.overread= 0;
2792 s->parse_context.overread_index= 0;
2793 s->parse_context.index= 0;
2794 s->parse_context.last_index= 0;
2795 s->bitstream_buffer_size=0;
2800 * set qscale and update qscale dependent variables.
2802 void ff_set_qscale(MpegEncContext * s, int qscale)
2806 else if (qscale > 31)
2810 s->chroma_qscale= s->chroma_qscale_table[qscale];
2812 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2813 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2816 void ff_mpv_report_decode_progress(MpegEncContext *s)
2818 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2819 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);