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 if (s->codec_id == AV_CODEC_ID_MPEG4)
333 s->idsp.mpeg4_studio_profile = s->studio_profile;
334 ff_idctdsp_init(&s->idsp, s->avctx);
336 /* load & permutate scantables
337 * note: only wmv uses different ones
339 if (s->alternate_scan) {
340 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
341 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
343 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
344 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
346 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
347 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
350 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
352 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
353 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
354 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
355 &s->linesize, &s->uvlinesize);
358 static int init_duplicate_context(MpegEncContext *s)
360 int y_size = s->b8_stride * (2 * s->mb_height + 1);
361 int c_size = s->mb_stride * (s->mb_height + 1);
362 int yc_size = y_size + 2 * c_size;
365 if (s->mb_height & 1)
366 yc_size += 2*s->b8_stride + 2*s->mb_stride;
368 s->sc.edge_emu_buffer =
371 s->sc.rd_scratchpad =
373 s->sc.obmc_scratchpad = NULL;
376 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
377 ME_MAP_SIZE * sizeof(uint32_t), fail)
378 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
379 ME_MAP_SIZE * sizeof(uint32_t), fail)
380 if (s->noise_reduction) {
381 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
382 2 * 64 * sizeof(int), fail)
385 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
386 s->block = s->blocks[0];
388 for (i = 0; i < 12; i++) {
389 s->pblocks[i] = &s->block[i];
392 FF_ALLOCZ_OR_GOTO(s->avctx, s->block32, sizeof(*s->block32), fail)
393 s->dpcm_direction = 0;
394 FF_ALLOCZ_OR_GOTO(s->avctx, s->dpcm_macroblock, sizeof(*s->dpcm_macroblock), fail)
396 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
398 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
401 if (s->out_format == FMT_H263) {
403 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
404 yc_size * sizeof(int16_t) * 16, fail);
405 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
406 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
407 s->ac_val[2] = s->ac_val[1] + c_size;
412 return -1; // free() through ff_mpv_common_end()
415 static void free_duplicate_context(MpegEncContext *s)
420 av_freep(&s->sc.edge_emu_buffer);
421 av_freep(&s->me.scratchpad);
423 s->sc.rd_scratchpad =
425 s->sc.obmc_scratchpad = NULL;
427 av_freep(&s->dct_error_sum);
428 av_freep(&s->me.map);
429 av_freep(&s->me.score_map);
430 av_freep(&s->blocks);
431 av_freep(&s->block32);
432 av_freep(&s->dpcm_macroblock);
433 av_freep(&s->ac_val_base);
437 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
439 #define COPY(a) bak->a = src->a
440 COPY(sc.edge_emu_buffer);
443 COPY(sc.rd_scratchpad);
444 COPY(sc.b_scratchpad);
445 COPY(sc.obmc_scratchpad);
451 COPY(dpcm_macroblock);
452 COPY(dpcm_direction);
455 COPY(me.map_generation);
467 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
471 // FIXME copy only needed parts
473 backup_duplicate_context(&bak, dst);
474 memcpy(dst, src, sizeof(MpegEncContext));
475 backup_duplicate_context(dst, &bak);
476 for (i = 0; i < 12; i++) {
477 dst->pblocks[i] = &dst->block[i];
479 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
481 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
483 if (!dst->sc.edge_emu_buffer &&
484 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
485 &dst->sc, dst->linesize)) < 0) {
486 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
487 "scratch buffers.\n");
490 // STOP_TIMER("update_duplicate_context")
491 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
495 int ff_mpeg_update_thread_context(AVCodecContext *dst,
496 const AVCodecContext *src)
499 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
506 // FIXME can parameters change on I-frames?
507 // in that case dst may need a reinit
508 if (!s->context_initialized) {
510 memcpy(s, s1, sizeof(MpegEncContext));
513 s->bitstream_buffer = NULL;
514 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
516 if (s1->context_initialized){
517 // s->picture_range_start += MAX_PICTURE_COUNT;
518 // s->picture_range_end += MAX_PICTURE_COUNT;
520 if((err = ff_mpv_common_init(s)) < 0){
521 memset(s, 0, sizeof(MpegEncContext));
528 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
529 s->context_reinit = 0;
530 s->height = s1->height;
531 s->width = s1->width;
532 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
536 s->avctx->coded_height = s1->avctx->coded_height;
537 s->avctx->coded_width = s1->avctx->coded_width;
538 s->avctx->width = s1->avctx->width;
539 s->avctx->height = s1->avctx->height;
541 s->quarter_sample = s1->quarter_sample;
543 s->coded_picture_number = s1->coded_picture_number;
544 s->picture_number = s1->picture_number;
546 av_assert0(!s->picture || s->picture != s1->picture);
548 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
549 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
550 if (s1->picture && s1->picture[i].f->buf[0] &&
551 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
555 #define UPDATE_PICTURE(pic)\
557 ff_mpeg_unref_picture(s->avctx, &s->pic);\
558 if (s1->pic.f && s1->pic.f->buf[0])\
559 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
561 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
566 UPDATE_PICTURE(current_picture);
567 UPDATE_PICTURE(last_picture);
568 UPDATE_PICTURE(next_picture);
570 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
571 ((pic && pic >= old_ctx->picture && \
572 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
573 &new_ctx->picture[pic - old_ctx->picture] : NULL)
575 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
576 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
577 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
579 // Error/bug resilience
580 s->next_p_frame_damaged = s1->next_p_frame_damaged;
581 s->workaround_bugs = s1->workaround_bugs;
582 s->padding_bug_score = s1->padding_bug_score;
584 // MPEG-4 timing info
585 memcpy(&s->last_time_base, &s1->last_time_base,
586 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
587 (char *) &s1->last_time_base);
590 s->max_b_frames = s1->max_b_frames;
591 s->low_delay = s1->low_delay;
592 s->droppable = s1->droppable;
594 // DivX handling (doesn't work)
595 s->divx_packed = s1->divx_packed;
597 if (s1->bitstream_buffer) {
598 if (s1->bitstream_buffer_size +
599 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
600 av_fast_malloc(&s->bitstream_buffer,
601 &s->allocated_bitstream_buffer_size,
602 s1->allocated_bitstream_buffer_size);
603 if (!s->bitstream_buffer) {
604 s->bitstream_buffer_size = 0;
605 return AVERROR(ENOMEM);
608 s->bitstream_buffer_size = s1->bitstream_buffer_size;
609 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
610 s1->bitstream_buffer_size);
611 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
612 AV_INPUT_BUFFER_PADDING_SIZE);
615 // linesize-dependent scratch buffer allocation
616 if (!s->sc.edge_emu_buffer)
618 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
619 &s->sc, s1->linesize) < 0) {
620 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
621 "scratch buffers.\n");
622 return AVERROR(ENOMEM);
625 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
626 "be allocated due to unknown size.\n");
629 // MPEG-2/interlacing info
630 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
631 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
633 if (!s1->first_field) {
634 s->last_pict_type = s1->pict_type;
635 if (s1->current_picture_ptr)
636 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
643 * Set the given MpegEncContext to common defaults
644 * (same for encoding and decoding).
645 * The changed fields will not depend upon the
646 * prior state of the MpegEncContext.
648 void ff_mpv_common_defaults(MpegEncContext *s)
650 s->y_dc_scale_table =
651 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
652 s->chroma_qscale_table = ff_default_chroma_qscale_table;
653 s->progressive_frame = 1;
654 s->progressive_sequence = 1;
655 s->picture_structure = PICT_FRAME;
657 s->coded_picture_number = 0;
658 s->picture_number = 0;
663 s->slice_context_count = 1;
667 * Set the given MpegEncContext to defaults for decoding.
668 * the changed fields will not depend upon
669 * the prior state of the MpegEncContext.
671 void ff_mpv_decode_defaults(MpegEncContext *s)
673 ff_mpv_common_defaults(s);
676 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
679 s->width = avctx->coded_width;
680 s->height = avctx->coded_height;
681 s->codec_id = avctx->codec->id;
682 s->workaround_bugs = avctx->workaround_bugs;
684 /* convert fourcc to upper case */
685 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
689 * Initialize and allocates MpegEncContext fields dependent on the resolution.
691 static int init_context_frame(MpegEncContext *s)
693 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
695 s->mb_width = (s->width + 15) / 16;
696 s->mb_stride = s->mb_width + 1;
697 s->b8_stride = s->mb_width * 2 + 1;
698 mb_array_size = s->mb_height * s->mb_stride;
699 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
701 /* set default edge pos, will be overridden
702 * in decode_header if needed */
703 s->h_edge_pos = s->mb_width * 16;
704 s->v_edge_pos = s->mb_height * 16;
706 s->mb_num = s->mb_width * s->mb_height;
711 s->block_wrap[3] = s->b8_stride;
713 s->block_wrap[5] = s->mb_stride;
715 y_size = s->b8_stride * (2 * s->mb_height + 1);
716 c_size = s->mb_stride * (s->mb_height + 1);
717 yc_size = y_size + 2 * c_size;
719 if (s->mb_height & 1)
720 yc_size += 2*s->b8_stride + 2*s->mb_stride;
722 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
723 fail); // error resilience code looks cleaner with this
724 for (y = 0; y < s->mb_height; y++)
725 for (x = 0; x < s->mb_width; x++)
726 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
728 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
731 /* Allocate MV tables */
732 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
733 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
734 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
735 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
736 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
737 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
738 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
739 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
740 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
741 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
742 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
743 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
745 /* Allocate MB type table */
746 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
748 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
750 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
751 mb_array_size * sizeof(float), fail);
752 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
753 mb_array_size * sizeof(float), fail);
757 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
758 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
759 /* interlaced direct mode decoding tables */
760 for (i = 0; i < 2; i++) {
762 for (j = 0; j < 2; j++) {
763 for (k = 0; k < 2; k++) {
764 FF_ALLOCZ_OR_GOTO(s->avctx,
765 s->b_field_mv_table_base[i][j][k],
766 mv_table_size * 2 * sizeof(int16_t),
768 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
771 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
772 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
773 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
775 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
778 if (s->out_format == FMT_H263) {
780 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
781 s->coded_block = s->coded_block_base + s->b8_stride + 1;
783 /* cbp, ac_pred, pred_dir */
784 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
785 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
788 if (s->h263_pred || s->h263_plus || !s->encoding) {
790 // MN: we need these for error resilience of intra-frames
791 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
792 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
793 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
794 s->dc_val[2] = s->dc_val[1] + c_size;
795 for (i = 0; i < yc_size; i++)
796 s->dc_val_base[i] = 1024;
799 /* which mb is an intra block */
800 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
801 memset(s->mbintra_table, 1, mb_array_size);
803 /* init macroblock skip table */
804 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
805 // Note the + 1 is for a quicker MPEG-4 slice_end detection
807 return ff_mpeg_er_init(s);
809 return AVERROR(ENOMEM);
812 static void clear_context(MpegEncContext *s)
816 memset(&s->next_picture, 0, sizeof(s->next_picture));
817 memset(&s->last_picture, 0, sizeof(s->last_picture));
818 memset(&s->current_picture, 0, sizeof(s->current_picture));
819 memset(&s->new_picture, 0, sizeof(s->new_picture));
821 memset(s->thread_context, 0, sizeof(s->thread_context));
824 s->me.score_map = NULL;
825 s->dct_error_sum = NULL;
829 memset(s->pblocks, 0, sizeof(s->pblocks));
830 s->dpcm_direction = 0;
831 s->dpcm_macroblock = NULL;
832 s->ac_val_base = NULL;
836 s->sc.edge_emu_buffer = NULL;
837 s->me.scratchpad = NULL;
839 s->sc.rd_scratchpad =
841 s->sc.obmc_scratchpad = NULL;
844 s->bitstream_buffer = NULL;
845 s->allocated_bitstream_buffer_size = 0;
848 s->p_mv_table_base = NULL;
849 s->b_forw_mv_table_base = NULL;
850 s->b_back_mv_table_base = NULL;
851 s->b_bidir_forw_mv_table_base = NULL;
852 s->b_bidir_back_mv_table_base = NULL;
853 s->b_direct_mv_table_base = NULL;
854 s->p_mv_table = NULL;
855 s->b_forw_mv_table = NULL;
856 s->b_back_mv_table = NULL;
857 s->b_bidir_forw_mv_table = NULL;
858 s->b_bidir_back_mv_table = NULL;
859 s->b_direct_mv_table = NULL;
860 for (i = 0; i < 2; i++) {
861 for (j = 0; j < 2; j++) {
862 for (k = 0; k < 2; k++) {
863 s->b_field_mv_table_base[i][j][k] = NULL;
864 s->b_field_mv_table[i][j][k] = NULL;
866 s->b_field_select_table[i][j] = NULL;
867 s->p_field_mv_table_base[i][j] = NULL;
868 s->p_field_mv_table[i][j] = NULL;
870 s->p_field_select_table[i] = NULL;
873 s->dc_val_base = NULL;
874 s->coded_block_base = NULL;
875 s->mbintra_table = NULL;
877 s->pred_dir_table = NULL;
879 s->mbskip_table = NULL;
881 s->er.error_status_table = NULL;
882 s->er.er_temp_buffer = NULL;
883 s->mb_index2xy = NULL;
884 s->lambda_table = NULL;
891 * init common structure for both encoder and decoder.
892 * this assumes that some variables like width/height are already set
894 av_cold int ff_mpv_common_init(MpegEncContext *s)
897 int nb_slices = (HAVE_THREADS &&
898 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
899 s->avctx->thread_count : 1;
903 if (s->encoding && s->avctx->slices)
904 nb_slices = s->avctx->slices;
906 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
907 s->mb_height = (s->height + 31) / 32 * 2;
909 s->mb_height = (s->height + 15) / 16;
911 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
912 av_log(s->avctx, AV_LOG_ERROR,
913 "decoding to AV_PIX_FMT_NONE is not supported.\n");
917 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
920 max_slices = FFMIN(MAX_THREADS, s->mb_height);
922 max_slices = MAX_THREADS;
923 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
924 " reducing to %d\n", nb_slices, max_slices);
925 nb_slices = max_slices;
928 if ((s->width || s->height) &&
929 av_image_check_size(s->width, s->height, 0, s->avctx))
934 /* set chroma shifts */
935 ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
941 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
942 MAX_PICTURE_COUNT * sizeof(Picture), fail);
943 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
944 s->picture[i].f = av_frame_alloc();
945 if (!s->picture[i].f)
948 s->next_picture.f = av_frame_alloc();
949 if (!s->next_picture.f)
951 s->last_picture.f = av_frame_alloc();
952 if (!s->last_picture.f)
954 s->current_picture.f = av_frame_alloc();
955 if (!s->current_picture.f)
957 s->new_picture.f = av_frame_alloc();
958 if (!s->new_picture.f)
961 if (init_context_frame(s))
964 s->parse_context.state = -1;
966 s->context_initialized = 1;
967 memset(s->thread_context, 0, sizeof(s->thread_context));
968 s->thread_context[0] = s;
970 // if (s->width && s->height) {
972 for (i = 0; i < nb_slices; i++) {
974 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
975 if (!s->thread_context[i])
978 if (init_duplicate_context(s->thread_context[i]) < 0)
980 s->thread_context[i]->start_mb_y =
981 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
982 s->thread_context[i]->end_mb_y =
983 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
986 if (init_duplicate_context(s) < 0)
989 s->end_mb_y = s->mb_height;
991 s->slice_context_count = nb_slices;
996 ff_mpv_common_end(s);
1001 * Frees and resets MpegEncContext fields depending on the resolution.
1002 * Is used during resolution changes to avoid a full reinitialization of the
1005 static void free_context_frame(MpegEncContext *s)
1009 av_freep(&s->mb_type);
1010 av_freep(&s->p_mv_table_base);
1011 av_freep(&s->b_forw_mv_table_base);
1012 av_freep(&s->b_back_mv_table_base);
1013 av_freep(&s->b_bidir_forw_mv_table_base);
1014 av_freep(&s->b_bidir_back_mv_table_base);
1015 av_freep(&s->b_direct_mv_table_base);
1016 s->p_mv_table = NULL;
1017 s->b_forw_mv_table = NULL;
1018 s->b_back_mv_table = NULL;
1019 s->b_bidir_forw_mv_table = NULL;
1020 s->b_bidir_back_mv_table = NULL;
1021 s->b_direct_mv_table = NULL;
1022 for (i = 0; i < 2; i++) {
1023 for (j = 0; j < 2; j++) {
1024 for (k = 0; k < 2; k++) {
1025 av_freep(&s->b_field_mv_table_base[i][j][k]);
1026 s->b_field_mv_table[i][j][k] = NULL;
1028 av_freep(&s->b_field_select_table[i][j]);
1029 av_freep(&s->p_field_mv_table_base[i][j]);
1030 s->p_field_mv_table[i][j] = NULL;
1032 av_freep(&s->p_field_select_table[i]);
1035 av_freep(&s->dc_val_base);
1036 av_freep(&s->coded_block_base);
1037 av_freep(&s->mbintra_table);
1038 av_freep(&s->cbp_table);
1039 av_freep(&s->pred_dir_table);
1041 av_freep(&s->mbskip_table);
1043 av_freep(&s->er.error_status_table);
1044 av_freep(&s->er.er_temp_buffer);
1045 av_freep(&s->mb_index2xy);
1046 av_freep(&s->lambda_table);
1048 av_freep(&s->cplx_tab);
1049 av_freep(&s->bits_tab);
1051 s->linesize = s->uvlinesize = 0;
1054 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1058 if (!s->context_initialized)
1059 return AVERROR(EINVAL);
1061 if (s->slice_context_count > 1) {
1062 for (i = 0; i < s->slice_context_count; i++) {
1063 free_duplicate_context(s->thread_context[i]);
1065 for (i = 1; i < s->slice_context_count; i++) {
1066 av_freep(&s->thread_context[i]);
1069 free_duplicate_context(s);
1071 free_context_frame(s);
1074 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1075 s->picture[i].needs_realloc = 1;
1078 s->last_picture_ptr =
1079 s->next_picture_ptr =
1080 s->current_picture_ptr = NULL;
1083 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1084 s->mb_height = (s->height + 31) / 32 * 2;
1086 s->mb_height = (s->height + 15) / 16;
1088 if ((s->width || s->height) &&
1089 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1092 if ((err = init_context_frame(s)))
1095 memset(s->thread_context, 0, sizeof(s->thread_context));
1096 s->thread_context[0] = s;
1098 if (s->width && s->height) {
1099 int nb_slices = s->slice_context_count;
1100 if (nb_slices > 1) {
1101 for (i = 0; i < nb_slices; i++) {
1103 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1104 if (!s->thread_context[i]) {
1105 err = AVERROR(ENOMEM);
1109 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1111 s->thread_context[i]->start_mb_y =
1112 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1113 s->thread_context[i]->end_mb_y =
1114 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1117 err = init_duplicate_context(s);
1121 s->end_mb_y = s->mb_height;
1123 s->slice_context_count = nb_slices;
1128 ff_mpv_common_end(s);
1132 /* init common structure for both encoder and decoder */
1133 void ff_mpv_common_end(MpegEncContext *s)
1140 if (s->slice_context_count > 1) {
1141 for (i = 0; i < s->slice_context_count; i++) {
1142 free_duplicate_context(s->thread_context[i]);
1144 for (i = 1; i < s->slice_context_count; i++) {
1145 av_freep(&s->thread_context[i]);
1147 s->slice_context_count = 1;
1148 } else free_duplicate_context(s);
1150 av_freep(&s->parse_context.buffer);
1151 s->parse_context.buffer_size = 0;
1153 av_freep(&s->bitstream_buffer);
1154 s->allocated_bitstream_buffer_size = 0;
1157 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1158 ff_free_picture_tables(&s->picture[i]);
1159 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1160 av_frame_free(&s->picture[i].f);
1163 av_freep(&s->picture);
1164 ff_free_picture_tables(&s->last_picture);
1165 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1166 av_frame_free(&s->last_picture.f);
1167 ff_free_picture_tables(&s->current_picture);
1168 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1169 av_frame_free(&s->current_picture.f);
1170 ff_free_picture_tables(&s->next_picture);
1171 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1172 av_frame_free(&s->next_picture.f);
1173 ff_free_picture_tables(&s->new_picture);
1174 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1175 av_frame_free(&s->new_picture.f);
1177 free_context_frame(s);
1179 s->context_initialized = 0;
1180 s->last_picture_ptr =
1181 s->next_picture_ptr =
1182 s->current_picture_ptr = NULL;
1183 s->linesize = s->uvlinesize = 0;
1187 static void gray_frame(AVFrame *frame)
1189 int i, h_chroma_shift, v_chroma_shift;
1191 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1193 for(i=0; i<frame->height; i++)
1194 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1195 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1196 memset(frame->data[1] + frame->linesize[1]*i,
1197 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1198 memset(frame->data[2] + frame->linesize[2]*i,
1199 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1204 * generic function called after decoding
1205 * the header and before a frame is decoded.
1207 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1213 if (!ff_thread_can_start_frame(avctx)) {
1214 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1218 /* mark & release old frames */
1219 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1220 s->last_picture_ptr != s->next_picture_ptr &&
1221 s->last_picture_ptr->f->buf[0]) {
1222 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1225 /* release forgotten pictures */
1226 /* if (MPEG-124 / H.263) */
1227 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1228 if (&s->picture[i] != s->last_picture_ptr &&
1229 &s->picture[i] != s->next_picture_ptr &&
1230 s->picture[i].reference && !s->picture[i].needs_realloc) {
1231 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1235 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1236 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1237 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1239 /* release non reference frames */
1240 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1241 if (!s->picture[i].reference)
1242 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1245 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1246 // we already have an unused image
1247 // (maybe it was set before reading the header)
1248 pic = s->current_picture_ptr;
1250 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1252 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1255 pic = &s->picture[i];
1259 if (!s->droppable) {
1260 if (s->pict_type != AV_PICTURE_TYPE_B)
1264 pic->f->coded_picture_number = s->coded_picture_number++;
1266 if (alloc_picture(s, pic, 0) < 0)
1269 s->current_picture_ptr = pic;
1270 // FIXME use only the vars from current_pic
1271 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1272 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1273 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1274 if (s->picture_structure != PICT_FRAME)
1275 s->current_picture_ptr->f->top_field_first =
1276 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1278 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1279 !s->progressive_sequence;
1280 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1282 s->current_picture_ptr->f->pict_type = s->pict_type;
1283 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1284 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1285 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1287 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1288 s->current_picture_ptr)) < 0)
1291 if (s->pict_type != AV_PICTURE_TYPE_B) {
1292 s->last_picture_ptr = s->next_picture_ptr;
1294 s->next_picture_ptr = s->current_picture_ptr;
1296 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1297 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1298 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1299 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1300 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1301 s->pict_type, s->droppable);
1303 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1304 (s->pict_type != AV_PICTURE_TYPE_I)) {
1305 int h_chroma_shift, v_chroma_shift;
1306 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1307 &h_chroma_shift, &v_chroma_shift);
1308 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1309 av_log(avctx, AV_LOG_DEBUG,
1310 "allocating dummy last picture for B frame\n");
1311 else if (s->pict_type != AV_PICTURE_TYPE_I)
1312 av_log(avctx, AV_LOG_ERROR,
1313 "warning: first frame is no keyframe\n");
1315 /* Allocate a dummy frame */
1316 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1318 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1321 s->last_picture_ptr = &s->picture[i];
1323 s->last_picture_ptr->reference = 3;
1324 s->last_picture_ptr->f->key_frame = 0;
1325 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1327 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1328 s->last_picture_ptr = NULL;
1332 if (!avctx->hwaccel) {
1333 for(i=0; i<avctx->height; i++)
1334 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1335 0x80, avctx->width);
1336 if (s->last_picture_ptr->f->data[2]) {
1337 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1338 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1339 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1340 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1341 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1345 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1346 for(i=0; i<avctx->height; i++)
1347 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1351 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1352 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1354 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1355 s->pict_type == AV_PICTURE_TYPE_B) {
1356 /* Allocate a dummy frame */
1357 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1359 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1362 s->next_picture_ptr = &s->picture[i];
1364 s->next_picture_ptr->reference = 3;
1365 s->next_picture_ptr->f->key_frame = 0;
1366 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1368 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1369 s->next_picture_ptr = NULL;
1372 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1373 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1376 #if 0 // BUFREF-FIXME
1377 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1378 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1380 if (s->last_picture_ptr) {
1381 if (s->last_picture_ptr->f->buf[0] &&
1382 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1383 s->last_picture_ptr)) < 0)
1386 if (s->next_picture_ptr) {
1387 if (s->next_picture_ptr->f->buf[0] &&
1388 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1389 s->next_picture_ptr)) < 0)
1393 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1394 s->last_picture_ptr->f->buf[0]));
1396 if (s->picture_structure!= PICT_FRAME) {
1398 for (i = 0; i < 4; i++) {
1399 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1400 s->current_picture.f->data[i] +=
1401 s->current_picture.f->linesize[i];
1403 s->current_picture.f->linesize[i] *= 2;
1404 s->last_picture.f->linesize[i] *= 2;
1405 s->next_picture.f->linesize[i] *= 2;
1409 /* set dequantizer, we can't do it during init as
1410 * it might change for MPEG-4 and we can't do it in the header
1411 * decode as init is not called for MPEG-4 there yet */
1412 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1413 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1414 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1415 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1416 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1417 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1419 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1420 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1423 if (s->avctx->debug & FF_DEBUG_NOMC) {
1424 gray_frame(s->current_picture_ptr->f);
1430 /* called after a frame has been decoded. */
1431 void ff_mpv_frame_end(MpegEncContext *s)
1435 if (s->current_picture.reference)
1436 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1439 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1441 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1442 p->qscale_table, p->motion_val, &s->low_delay,
1443 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1446 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1448 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1449 int offset = 2*s->mb_stride + 1;
1451 return AVERROR(ENOMEM);
1452 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1453 ref->size -= offset;
1454 ref->data += offset;
1455 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1458 static inline int hpel_motion_lowres(MpegEncContext *s,
1459 uint8_t *dest, uint8_t *src,
1460 int field_based, int field_select,
1461 int src_x, int src_y,
1462 int width, int height, ptrdiff_t stride,
1463 int h_edge_pos, int v_edge_pos,
1464 int w, int h, h264_chroma_mc_func *pix_op,
1465 int motion_x, int motion_y)
1467 const int lowres = s->avctx->lowres;
1468 const int op_index = FFMIN(lowres, 3);
1469 const int s_mask = (2 << lowres) - 1;
1473 if (s->quarter_sample) {
1478 sx = motion_x & s_mask;
1479 sy = motion_y & s_mask;
1480 src_x += motion_x >> lowres + 1;
1481 src_y += motion_y >> lowres + 1;
1483 src += src_y * stride + src_x;
1485 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1486 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1487 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1488 s->linesize, s->linesize,
1489 w + 1, (h + 1) << field_based,
1490 src_x, src_y << field_based,
1491 h_edge_pos, v_edge_pos);
1492 src = s->sc.edge_emu_buffer;
1496 sx = (sx << 2) >> lowres;
1497 sy = (sy << 2) >> lowres;
1500 pix_op[op_index](dest, src, stride, h, sx, sy);
1504 /* apply one mpeg motion vector to the three components */
1505 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1512 uint8_t **ref_picture,
1513 h264_chroma_mc_func *pix_op,
1514 int motion_x, int motion_y,
1517 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1518 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1519 ptrdiff_t uvlinesize, linesize;
1520 const int lowres = s->avctx->lowres;
1521 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1522 const int block_s = 8>>lowres;
1523 const int s_mask = (2 << lowres) - 1;
1524 const int h_edge_pos = s->h_edge_pos >> lowres;
1525 const int v_edge_pos = s->v_edge_pos >> lowres;
1526 linesize = s->current_picture.f->linesize[0] << field_based;
1527 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1529 // FIXME obviously not perfect but qpel will not work in lowres anyway
1530 if (s->quarter_sample) {
1536 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1539 sx = motion_x & s_mask;
1540 sy = motion_y & s_mask;
1541 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1542 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1544 if (s->out_format == FMT_H263) {
1545 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1546 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1547 uvsrc_x = src_x >> 1;
1548 uvsrc_y = src_y >> 1;
1549 } else if (s->out_format == FMT_H261) {
1550 // even chroma mv's are full pel in H261
1553 uvsx = (2 * mx) & s_mask;
1554 uvsy = (2 * my) & s_mask;
1555 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1556 uvsrc_y = mb_y * block_s + (my >> lowres);
1558 if(s->chroma_y_shift){
1563 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1564 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1566 if(s->chroma_x_shift){
1570 uvsy = motion_y & s_mask;
1572 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1575 uvsx = motion_x & s_mask;
1576 uvsy = motion_y & s_mask;
1583 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1584 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1585 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1587 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1588 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1589 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1590 linesize >> field_based, linesize >> field_based,
1591 17, 17 + field_based,
1592 src_x, src_y << field_based, h_edge_pos,
1594 ptr_y = s->sc.edge_emu_buffer;
1595 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1596 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1597 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1598 if (s->workaround_bugs & FF_BUG_IEDGE)
1599 vbuf -= s->uvlinesize;
1600 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1601 uvlinesize >> field_based, uvlinesize >> field_based,
1603 uvsrc_x, uvsrc_y << field_based,
1604 h_edge_pos >> 1, v_edge_pos >> 1);
1605 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1606 uvlinesize >> field_based,uvlinesize >> field_based,
1608 uvsrc_x, uvsrc_y << field_based,
1609 h_edge_pos >> 1, v_edge_pos >> 1);
1615 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1617 dest_y += s->linesize;
1618 dest_cb += s->uvlinesize;
1619 dest_cr += s->uvlinesize;
1623 ptr_y += s->linesize;
1624 ptr_cb += s->uvlinesize;
1625 ptr_cr += s->uvlinesize;
1628 sx = (sx << 2) >> lowres;
1629 sy = (sy << 2) >> lowres;
1630 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1632 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1633 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1634 uvsx = (uvsx << 2) >> lowres;
1635 uvsy = (uvsy << 2) >> lowres;
1637 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1638 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1641 // FIXME h261 lowres loop filter
1644 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1645 uint8_t *dest_cb, uint8_t *dest_cr,
1646 uint8_t **ref_picture,
1647 h264_chroma_mc_func * pix_op,
1650 const int lowres = s->avctx->lowres;
1651 const int op_index = FFMIN(lowres, 3);
1652 const int block_s = 8 >> lowres;
1653 const int s_mask = (2 << lowres) - 1;
1654 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1655 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1656 int emu = 0, src_x, src_y, sx, sy;
1660 if (s->quarter_sample) {
1665 /* In case of 8X8, we construct a single chroma motion vector
1666 with a special rounding */
1667 mx = ff_h263_round_chroma(mx);
1668 my = ff_h263_round_chroma(my);
1672 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1673 src_y = s->mb_y * block_s + (my >> lowres + 1);
1675 offset = src_y * s->uvlinesize + src_x;
1676 ptr = ref_picture[1] + offset;
1677 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1678 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1679 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1680 s->uvlinesize, s->uvlinesize,
1682 src_x, src_y, h_edge_pos, v_edge_pos);
1683 ptr = s->sc.edge_emu_buffer;
1686 sx = (sx << 2) >> lowres;
1687 sy = (sy << 2) >> lowres;
1688 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1690 ptr = ref_picture[2] + offset;
1692 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1693 s->uvlinesize, s->uvlinesize,
1695 src_x, src_y, h_edge_pos, v_edge_pos);
1696 ptr = s->sc.edge_emu_buffer;
1698 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1702 * motion compensation of a single macroblock
1704 * @param dest_y luma destination pointer
1705 * @param dest_cb chroma cb/u destination pointer
1706 * @param dest_cr chroma cr/v destination pointer
1707 * @param dir direction (0->forward, 1->backward)
1708 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1709 * @param pix_op halfpel motion compensation function (average or put normally)
1710 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1712 static inline void MPV_motion_lowres(MpegEncContext *s,
1713 uint8_t *dest_y, uint8_t *dest_cb,
1715 int dir, uint8_t **ref_picture,
1716 h264_chroma_mc_func *pix_op)
1720 const int lowres = s->avctx->lowres;
1721 const int block_s = 8 >>lowres;
1726 switch (s->mv_type) {
1728 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1730 ref_picture, pix_op,
1731 s->mv[dir][0][0], s->mv[dir][0][1],
1737 for (i = 0; i < 4; i++) {
1738 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1739 s->linesize) * block_s,
1740 ref_picture[0], 0, 0,
1741 (2 * mb_x + (i & 1)) * block_s,
1742 (2 * mb_y + (i >> 1)) * block_s,
1743 s->width, s->height, s->linesize,
1744 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1745 block_s, block_s, pix_op,
1746 s->mv[dir][i][0], s->mv[dir][i][1]);
1748 mx += s->mv[dir][i][0];
1749 my += s->mv[dir][i][1];
1752 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1753 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1757 if (s->picture_structure == PICT_FRAME) {
1759 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1760 1, 0, s->field_select[dir][0],
1761 ref_picture, pix_op,
1762 s->mv[dir][0][0], s->mv[dir][0][1],
1765 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1766 1, 1, s->field_select[dir][1],
1767 ref_picture, pix_op,
1768 s->mv[dir][1][0], s->mv[dir][1][1],
1771 if (s->picture_structure != s->field_select[dir][0] + 1 &&
1772 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1773 ref_picture = s->current_picture_ptr->f->data;
1776 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1777 0, 0, s->field_select[dir][0],
1778 ref_picture, pix_op,
1780 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1784 for (i = 0; i < 2; i++) {
1785 uint8_t **ref2picture;
1787 if (s->picture_structure == s->field_select[dir][i] + 1 ||
1788 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1789 ref2picture = ref_picture;
1791 ref2picture = s->current_picture_ptr->f->data;
1794 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1795 0, 0, s->field_select[dir][i],
1796 ref2picture, pix_op,
1797 s->mv[dir][i][0], s->mv[dir][i][1] +
1798 2 * block_s * i, block_s, mb_y >> 1);
1800 dest_y += 2 * block_s * s->linesize;
1801 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1802 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1806 if (s->picture_structure == PICT_FRAME) {
1807 for (i = 0; i < 2; i++) {
1809 for (j = 0; j < 2; j++) {
1810 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1812 ref_picture, pix_op,
1813 s->mv[dir][2 * i + j][0],
1814 s->mv[dir][2 * i + j][1],
1817 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1820 for (i = 0; i < 2; i++) {
1821 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1822 0, 0, s->picture_structure != i + 1,
1823 ref_picture, pix_op,
1824 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1825 2 * block_s, mb_y >> 1);
1827 // after put we make avg of the same block
1828 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1830 // opposite parity is always in the same
1831 // frame if this is second field
1832 if (!s->first_field) {
1833 ref_picture = s->current_picture_ptr->f->data;
1844 * find the lowest MB row referenced in the MVs
1846 static int lowest_referenced_row(MpegEncContext *s, int dir)
1848 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1849 int my, off, i, mvs;
1851 if (s->picture_structure != PICT_FRAME || s->mcsel)
1854 switch (s->mv_type) {
1868 for (i = 0; i < mvs; i++) {
1869 my = s->mv[dir][i][1];
1870 my_max = FFMAX(my_max, my);
1871 my_min = FFMIN(my_min, my);
1874 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1876 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1878 return s->mb_height-1;
1881 /* put block[] to dest[] */
1882 static inline void put_dct(MpegEncContext *s,
1883 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1885 s->dct_unquantize_intra(s, block, i, qscale);
1886 s->idsp.idct_put(dest, line_size, block);
1889 /* add block[] to dest[] */
1890 static inline void add_dct(MpegEncContext *s,
1891 int16_t *block, int i, uint8_t *dest, int line_size)
1893 if (s->block_last_index[i] >= 0) {
1894 s->idsp.idct_add(dest, line_size, block);
1898 static inline void add_dequant_dct(MpegEncContext *s,
1899 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1901 if (s->block_last_index[i] >= 0) {
1902 s->dct_unquantize_inter(s, block, i, qscale);
1904 s->idsp.idct_add(dest, line_size, block);
1909 * Clean dc, ac, coded_block for the current non-intra MB.
1911 void ff_clean_intra_table_entries(MpegEncContext *s)
1913 int wrap = s->b8_stride;
1914 int xy = s->block_index[0];
1917 s->dc_val[0][xy + 1 ] =
1918 s->dc_val[0][xy + wrap] =
1919 s->dc_val[0][xy + 1 + wrap] = 1024;
1921 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1922 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1923 if (s->msmpeg4_version>=3) {
1924 s->coded_block[xy ] =
1925 s->coded_block[xy + 1 ] =
1926 s->coded_block[xy + wrap] =
1927 s->coded_block[xy + 1 + wrap] = 0;
1930 wrap = s->mb_stride;
1931 xy = s->mb_x + s->mb_y * wrap;
1933 s->dc_val[2][xy] = 1024;
1935 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1936 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1938 s->mbintra_table[xy]= 0;
1941 /* generic function called after a macroblock has been parsed by the
1942 decoder or after it has been encoded by the encoder.
1944 Important variables used:
1945 s->mb_intra : true if intra macroblock
1946 s->mv_dir : motion vector direction
1947 s->mv_type : motion vector type
1948 s->mv : motion vector
1949 s->interlaced_dct : true if interlaced dct used (mpeg2)
1951 static av_always_inline
1952 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1953 int lowres_flag, int is_mpeg12)
1955 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1958 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1959 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1963 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1964 /* print DCT coefficients */
1966 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1968 for(j=0; j<64; j++){
1969 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1970 block[i][s->idsp.idct_permutation[j]]);
1972 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1976 s->current_picture.qscale_table[mb_xy] = s->qscale;
1978 /* update DC predictors for P macroblocks */
1980 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1981 if(s->mbintra_table[mb_xy])
1982 ff_clean_intra_table_entries(s);
1986 s->last_dc[2] = 128 << s->intra_dc_precision;
1989 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1990 s->mbintra_table[mb_xy]=1;
1992 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1993 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1994 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1995 uint8_t *dest_y, *dest_cb, *dest_cr;
1996 int dct_linesize, dct_offset;
1997 op_pixels_func (*op_pix)[4];
1998 qpel_mc_func (*op_qpix)[16];
1999 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2000 const int uvlinesize = s->current_picture.f->linesize[1];
2001 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2002 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2004 /* avoid copy if macroblock skipped in last frame too */
2005 /* skip only during decoding as we might trash the buffers during encoding a bit */
2007 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2009 if (s->mb_skipped) {
2011 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2013 } else if(!s->current_picture.reference) {
2016 *mbskip_ptr = 0; /* not skipped */
2020 dct_linesize = linesize << s->interlaced_dct;
2021 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2025 dest_cb= s->dest[1];
2026 dest_cr= s->dest[2];
2028 dest_y = s->sc.b_scratchpad;
2029 dest_cb= s->sc.b_scratchpad+16*linesize;
2030 dest_cr= s->sc.b_scratchpad+32*linesize;
2034 /* motion handling */
2035 /* decoding or more than one mb_type (MC was already done otherwise) */
2038 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2039 if (s->mv_dir & MV_DIR_FORWARD) {
2040 ff_thread_await_progress(&s->last_picture_ptr->tf,
2041 lowest_referenced_row(s, 0),
2044 if (s->mv_dir & MV_DIR_BACKWARD) {
2045 ff_thread_await_progress(&s->next_picture_ptr->tf,
2046 lowest_referenced_row(s, 1),
2052 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2054 if (s->mv_dir & MV_DIR_FORWARD) {
2055 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2056 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2058 if (s->mv_dir & MV_DIR_BACKWARD) {
2059 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2062 op_qpix = s->me.qpel_put;
2063 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2064 op_pix = s->hdsp.put_pixels_tab;
2066 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2068 if (s->mv_dir & MV_DIR_FORWARD) {
2069 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2070 op_pix = s->hdsp.avg_pixels_tab;
2071 op_qpix= s->me.qpel_avg;
2073 if (s->mv_dir & MV_DIR_BACKWARD) {
2074 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2079 /* skip dequant / idct if we are really late ;) */
2080 if(s->avctx->skip_idct){
2081 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2082 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2083 || s->avctx->skip_idct >= AVDISCARD_ALL)
2087 /* add dct residue */
2088 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2089 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2090 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2091 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2092 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2093 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2095 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2096 if (s->chroma_y_shift){
2097 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2098 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2102 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2103 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2104 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2105 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2108 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2109 add_dct(s, block[0], 0, dest_y , dct_linesize);
2110 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2111 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2112 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2114 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2115 if(s->chroma_y_shift){//Chroma420
2116 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2117 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2120 dct_linesize = uvlinesize << s->interlaced_dct;
2121 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2123 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2124 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2125 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2126 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2127 if(!s->chroma_x_shift){//Chroma444
2128 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2129 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2130 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2131 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2136 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2137 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2140 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2141 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2142 if (s->avctx->bits_per_raw_sample > 8){
2143 const int act_block_size = block_size * 2;
2145 if(s->dpcm_direction == 0) {
2146 s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
2147 s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2148 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
2149 s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2151 dct_linesize = uvlinesize << s->interlaced_dct;
2152 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2154 s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
2155 s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
2156 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2157 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2158 if(!s->chroma_x_shift){//Chroma444
2159 s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
2160 s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
2161 s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2162 s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2164 } else if(s->dpcm_direction == 1) {
2166 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2167 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2168 for(i = 0; i < 3; i++) {
2170 int vsub = i ? s->chroma_y_shift : 0;
2171 int hsub = i ? s->chroma_x_shift : 0;
2172 for(h = 0; h < (16 >> vsub); h++){
2173 for(w = 0; w < (16 >> hsub); w++)
2174 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2175 dest_pcm[i] += linesize[i] / 2;
2178 } else if(s->dpcm_direction == -1) {
2180 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2181 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2182 for(i = 0; i < 3; i++) {
2184 int vsub = i ? s->chroma_y_shift : 0;
2185 int hsub = i ? s->chroma_x_shift : 0;
2186 dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2187 for(h = (16 >> vsub)-1; h >= 1; h--){
2188 for(w = (16 >> hsub)-1; w >= 1; w--)
2189 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2190 dest_pcm[i] -= linesize[i] / 2;
2195 /* dct only in intra block */
2196 else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2197 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2198 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2199 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2200 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2202 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2203 if(s->chroma_y_shift){
2204 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2205 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2209 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2210 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2211 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2212 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2216 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2217 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2218 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2219 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2221 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2222 if(s->chroma_y_shift){
2223 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2224 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2227 dct_linesize = uvlinesize << s->interlaced_dct;
2228 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2230 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2231 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2232 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2233 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2234 if(!s->chroma_x_shift){//Chroma444
2235 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2236 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2237 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2238 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2246 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2247 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2248 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2249 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2255 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2258 if(s->out_format == FMT_MPEG1) {
2259 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2260 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2263 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2264 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2267 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2269 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2270 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2271 s->first_field, s->low_delay);
2274 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2275 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2276 const int uvlinesize = s->current_picture.f->linesize[1];
2277 const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2278 const int height_of_mb = 4 - s->avctx->lowres;
2280 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2281 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2282 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2283 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2284 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2285 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;
2286 //block_index is not used by mpeg2, so it is not affected by chroma_format
2288 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
2289 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2290 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2292 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2294 if(s->picture_structure==PICT_FRAME){
2295 s->dest[0] += s->mb_y * linesize << height_of_mb;
2296 s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2297 s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2299 s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
2300 s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2301 s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2302 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2307 void ff_mpeg_flush(AVCodecContext *avctx){
2309 MpegEncContext *s = avctx->priv_data;
2311 if (!s || !s->picture)
2314 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2315 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2316 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2318 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2319 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2320 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2322 s->mb_x= s->mb_y= 0;
2325 s->parse_context.state= -1;
2326 s->parse_context.frame_start_found= 0;
2327 s->parse_context.overread= 0;
2328 s->parse_context.overread_index= 0;
2329 s->parse_context.index= 0;
2330 s->parse_context.last_index= 0;
2331 s->bitstream_buffer_size=0;
2336 * set qscale and update qscale dependent variables.
2338 void ff_set_qscale(MpegEncContext * s, int qscale)
2342 else if (qscale > 31)
2346 s->chroma_qscale= s->chroma_qscale_table[qscale];
2348 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2349 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2352 void ff_mpv_report_decode_progress(MpegEncContext *s)
2354 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2355 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);