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->coded_picture_number = s1->coded_picture_number;
542 s->picture_number = s1->picture_number;
544 av_assert0(!s->picture || s->picture != s1->picture);
546 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
547 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
548 if (s1->picture && s1->picture[i].f->buf[0] &&
549 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
553 #define UPDATE_PICTURE(pic)\
555 ff_mpeg_unref_picture(s->avctx, &s->pic);\
556 if (s1->pic.f && s1->pic.f->buf[0])\
557 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
559 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
564 UPDATE_PICTURE(current_picture);
565 UPDATE_PICTURE(last_picture);
566 UPDATE_PICTURE(next_picture);
568 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
569 ((pic && pic >= old_ctx->picture && \
570 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
571 &new_ctx->picture[pic - old_ctx->picture] : NULL)
573 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
574 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
575 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
577 // Error/bug resilience
578 s->next_p_frame_damaged = s1->next_p_frame_damaged;
579 s->workaround_bugs = s1->workaround_bugs;
580 s->padding_bug_score = s1->padding_bug_score;
582 // MPEG-4 timing info
583 memcpy(&s->last_time_base, &s1->last_time_base,
584 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
585 (char *) &s1->last_time_base);
588 s->max_b_frames = s1->max_b_frames;
589 s->low_delay = s1->low_delay;
590 s->droppable = s1->droppable;
592 // DivX handling (doesn't work)
593 s->divx_packed = s1->divx_packed;
595 if (s1->bitstream_buffer) {
596 if (s1->bitstream_buffer_size +
597 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
598 av_fast_malloc(&s->bitstream_buffer,
599 &s->allocated_bitstream_buffer_size,
600 s1->allocated_bitstream_buffer_size);
601 if (!s->bitstream_buffer) {
602 s->bitstream_buffer_size = 0;
603 return AVERROR(ENOMEM);
606 s->bitstream_buffer_size = s1->bitstream_buffer_size;
607 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
608 s1->bitstream_buffer_size);
609 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
610 AV_INPUT_BUFFER_PADDING_SIZE);
613 // linesize-dependent scratch buffer allocation
614 if (!s->sc.edge_emu_buffer)
616 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
617 &s->sc, s1->linesize) < 0) {
618 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
619 "scratch buffers.\n");
620 return AVERROR(ENOMEM);
623 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
624 "be allocated due to unknown size.\n");
627 // MPEG-2/interlacing info
628 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
629 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
631 if (!s1->first_field) {
632 s->last_pict_type = s1->pict_type;
633 if (s1->current_picture_ptr)
634 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
641 * Set the given MpegEncContext to common defaults
642 * (same for encoding and decoding).
643 * The changed fields will not depend upon the
644 * prior state of the MpegEncContext.
646 void ff_mpv_common_defaults(MpegEncContext *s)
648 s->y_dc_scale_table =
649 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
650 s->chroma_qscale_table = ff_default_chroma_qscale_table;
651 s->progressive_frame = 1;
652 s->progressive_sequence = 1;
653 s->picture_structure = PICT_FRAME;
655 s->coded_picture_number = 0;
656 s->picture_number = 0;
661 s->slice_context_count = 1;
665 * Set the given MpegEncContext to defaults for decoding.
666 * the changed fields will not depend upon
667 * the prior state of the MpegEncContext.
669 void ff_mpv_decode_defaults(MpegEncContext *s)
671 ff_mpv_common_defaults(s);
674 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
677 s->width = avctx->coded_width;
678 s->height = avctx->coded_height;
679 s->codec_id = avctx->codec->id;
680 s->workaround_bugs = avctx->workaround_bugs;
682 /* convert fourcc to upper case */
683 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
687 * Initialize and allocates MpegEncContext fields dependent on the resolution.
689 static int init_context_frame(MpegEncContext *s)
691 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
693 s->mb_width = (s->width + 15) / 16;
694 s->mb_stride = s->mb_width + 1;
695 s->b8_stride = s->mb_width * 2 + 1;
696 mb_array_size = s->mb_height * s->mb_stride;
697 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
699 /* set default edge pos, will be overridden
700 * in decode_header if needed */
701 s->h_edge_pos = s->mb_width * 16;
702 s->v_edge_pos = s->mb_height * 16;
704 s->mb_num = s->mb_width * s->mb_height;
709 s->block_wrap[3] = s->b8_stride;
711 s->block_wrap[5] = s->mb_stride;
713 y_size = s->b8_stride * (2 * s->mb_height + 1);
714 c_size = s->mb_stride * (s->mb_height + 1);
715 yc_size = y_size + 2 * c_size;
717 if (s->mb_height & 1)
718 yc_size += 2*s->b8_stride + 2*s->mb_stride;
720 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
721 fail); // error resilience code looks cleaner with this
722 for (y = 0; y < s->mb_height; y++)
723 for (x = 0; x < s->mb_width; x++)
724 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
726 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
729 /* Allocate MV tables */
730 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
731 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
732 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
733 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
734 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
735 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
736 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
737 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
738 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
739 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
740 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
741 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
743 /* Allocate MB type table */
744 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
746 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
748 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
749 mb_array_size * sizeof(float), fail);
750 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
751 mb_array_size * sizeof(float), fail);
755 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
756 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
757 /* interlaced direct mode decoding tables */
758 for (i = 0; i < 2; i++) {
760 for (j = 0; j < 2; j++) {
761 for (k = 0; k < 2; k++) {
762 FF_ALLOCZ_OR_GOTO(s->avctx,
763 s->b_field_mv_table_base[i][j][k],
764 mv_table_size * 2 * sizeof(int16_t),
766 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
769 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
770 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
771 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
773 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
776 if (s->out_format == FMT_H263) {
778 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
779 s->coded_block = s->coded_block_base + s->b8_stride + 1;
781 /* cbp, ac_pred, pred_dir */
782 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
783 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
786 if (s->h263_pred || s->h263_plus || !s->encoding) {
788 // MN: we need these for error resilience of intra-frames
789 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
790 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
791 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
792 s->dc_val[2] = s->dc_val[1] + c_size;
793 for (i = 0; i < yc_size; i++)
794 s->dc_val_base[i] = 1024;
797 /* which mb is an intra block */
798 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
799 memset(s->mbintra_table, 1, mb_array_size);
801 /* init macroblock skip table */
802 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
803 // Note the + 1 is for a quicker MPEG-4 slice_end detection
805 return ff_mpeg_er_init(s);
807 return AVERROR(ENOMEM);
810 static void clear_context(MpegEncContext *s)
814 memset(&s->next_picture, 0, sizeof(s->next_picture));
815 memset(&s->last_picture, 0, sizeof(s->last_picture));
816 memset(&s->current_picture, 0, sizeof(s->current_picture));
817 memset(&s->new_picture, 0, sizeof(s->new_picture));
819 memset(s->thread_context, 0, sizeof(s->thread_context));
822 s->me.score_map = NULL;
823 s->dct_error_sum = NULL;
827 memset(s->pblocks, 0, sizeof(s->pblocks));
828 s->dpcm_direction = 0;
829 s->dpcm_macroblock = NULL;
830 s->ac_val_base = NULL;
834 s->sc.edge_emu_buffer = NULL;
835 s->me.scratchpad = NULL;
837 s->sc.rd_scratchpad =
839 s->sc.obmc_scratchpad = NULL;
842 s->bitstream_buffer = NULL;
843 s->allocated_bitstream_buffer_size = 0;
846 s->p_mv_table_base = NULL;
847 s->b_forw_mv_table_base = NULL;
848 s->b_back_mv_table_base = NULL;
849 s->b_bidir_forw_mv_table_base = NULL;
850 s->b_bidir_back_mv_table_base = NULL;
851 s->b_direct_mv_table_base = NULL;
852 s->p_mv_table = NULL;
853 s->b_forw_mv_table = NULL;
854 s->b_back_mv_table = NULL;
855 s->b_bidir_forw_mv_table = NULL;
856 s->b_bidir_back_mv_table = NULL;
857 s->b_direct_mv_table = NULL;
858 for (i = 0; i < 2; i++) {
859 for (j = 0; j < 2; j++) {
860 for (k = 0; k < 2; k++) {
861 s->b_field_mv_table_base[i][j][k] = NULL;
862 s->b_field_mv_table[i][j][k] = NULL;
864 s->b_field_select_table[i][j] = NULL;
865 s->p_field_mv_table_base[i][j] = NULL;
866 s->p_field_mv_table[i][j] = NULL;
868 s->p_field_select_table[i] = NULL;
871 s->dc_val_base = NULL;
872 s->coded_block_base = NULL;
873 s->mbintra_table = NULL;
875 s->pred_dir_table = NULL;
877 s->mbskip_table = NULL;
879 s->er.error_status_table = NULL;
880 s->er.er_temp_buffer = NULL;
881 s->mb_index2xy = NULL;
882 s->lambda_table = NULL;
889 * init common structure for both encoder and decoder.
890 * this assumes that some variables like width/height are already set
892 av_cold int ff_mpv_common_init(MpegEncContext *s)
895 int nb_slices = (HAVE_THREADS &&
896 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
897 s->avctx->thread_count : 1;
901 if (s->encoding && s->avctx->slices)
902 nb_slices = s->avctx->slices;
904 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
905 s->mb_height = (s->height + 31) / 32 * 2;
907 s->mb_height = (s->height + 15) / 16;
909 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
910 av_log(s->avctx, AV_LOG_ERROR,
911 "decoding to AV_PIX_FMT_NONE is not supported.\n");
915 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
918 max_slices = FFMIN(MAX_THREADS, s->mb_height);
920 max_slices = MAX_THREADS;
921 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
922 " reducing to %d\n", nb_slices, max_slices);
923 nb_slices = max_slices;
926 if ((s->width || s->height) &&
927 av_image_check_size(s->width, s->height, 0, s->avctx))
932 /* set chroma shifts */
933 ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
939 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
940 MAX_PICTURE_COUNT * sizeof(Picture), fail);
941 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
942 s->picture[i].f = av_frame_alloc();
943 if (!s->picture[i].f)
946 s->next_picture.f = av_frame_alloc();
947 if (!s->next_picture.f)
949 s->last_picture.f = av_frame_alloc();
950 if (!s->last_picture.f)
952 s->current_picture.f = av_frame_alloc();
953 if (!s->current_picture.f)
955 s->new_picture.f = av_frame_alloc();
956 if (!s->new_picture.f)
959 if (init_context_frame(s))
962 s->parse_context.state = -1;
964 s->context_initialized = 1;
965 memset(s->thread_context, 0, sizeof(s->thread_context));
966 s->thread_context[0] = s;
968 // if (s->width && s->height) {
970 for (i = 0; i < nb_slices; i++) {
972 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
973 if (!s->thread_context[i])
976 if (init_duplicate_context(s->thread_context[i]) < 0)
978 s->thread_context[i]->start_mb_y =
979 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
980 s->thread_context[i]->end_mb_y =
981 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
984 if (init_duplicate_context(s) < 0)
987 s->end_mb_y = s->mb_height;
989 s->slice_context_count = nb_slices;
994 ff_mpv_common_end(s);
999 * Frees and resets MpegEncContext fields depending on the resolution.
1000 * Is used during resolution changes to avoid a full reinitialization of the
1003 static void free_context_frame(MpegEncContext *s)
1007 av_freep(&s->mb_type);
1008 av_freep(&s->p_mv_table_base);
1009 av_freep(&s->b_forw_mv_table_base);
1010 av_freep(&s->b_back_mv_table_base);
1011 av_freep(&s->b_bidir_forw_mv_table_base);
1012 av_freep(&s->b_bidir_back_mv_table_base);
1013 av_freep(&s->b_direct_mv_table_base);
1014 s->p_mv_table = NULL;
1015 s->b_forw_mv_table = NULL;
1016 s->b_back_mv_table = NULL;
1017 s->b_bidir_forw_mv_table = NULL;
1018 s->b_bidir_back_mv_table = NULL;
1019 s->b_direct_mv_table = NULL;
1020 for (i = 0; i < 2; i++) {
1021 for (j = 0; j < 2; j++) {
1022 for (k = 0; k < 2; k++) {
1023 av_freep(&s->b_field_mv_table_base[i][j][k]);
1024 s->b_field_mv_table[i][j][k] = NULL;
1026 av_freep(&s->b_field_select_table[i][j]);
1027 av_freep(&s->p_field_mv_table_base[i][j]);
1028 s->p_field_mv_table[i][j] = NULL;
1030 av_freep(&s->p_field_select_table[i]);
1033 av_freep(&s->dc_val_base);
1034 av_freep(&s->coded_block_base);
1035 av_freep(&s->mbintra_table);
1036 av_freep(&s->cbp_table);
1037 av_freep(&s->pred_dir_table);
1039 av_freep(&s->mbskip_table);
1041 av_freep(&s->er.error_status_table);
1042 av_freep(&s->er.er_temp_buffer);
1043 av_freep(&s->mb_index2xy);
1044 av_freep(&s->lambda_table);
1046 av_freep(&s->cplx_tab);
1047 av_freep(&s->bits_tab);
1049 s->linesize = s->uvlinesize = 0;
1052 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1056 if (!s->context_initialized)
1057 return AVERROR(EINVAL);
1059 if (s->slice_context_count > 1) {
1060 for (i = 0; i < s->slice_context_count; i++) {
1061 free_duplicate_context(s->thread_context[i]);
1063 for (i = 1; i < s->slice_context_count; i++) {
1064 av_freep(&s->thread_context[i]);
1067 free_duplicate_context(s);
1069 free_context_frame(s);
1072 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1073 s->picture[i].needs_realloc = 1;
1076 s->last_picture_ptr =
1077 s->next_picture_ptr =
1078 s->current_picture_ptr = NULL;
1081 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1082 s->mb_height = (s->height + 31) / 32 * 2;
1084 s->mb_height = (s->height + 15) / 16;
1086 if ((s->width || s->height) &&
1087 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1090 if ((err = init_context_frame(s)))
1093 memset(s->thread_context, 0, sizeof(s->thread_context));
1094 s->thread_context[0] = s;
1096 if (s->width && s->height) {
1097 int nb_slices = s->slice_context_count;
1098 if (nb_slices > 1) {
1099 for (i = 0; i < nb_slices; i++) {
1101 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1102 if (!s->thread_context[i]) {
1103 err = AVERROR(ENOMEM);
1107 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1109 s->thread_context[i]->start_mb_y =
1110 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1111 s->thread_context[i]->end_mb_y =
1112 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1115 err = init_duplicate_context(s);
1119 s->end_mb_y = s->mb_height;
1121 s->slice_context_count = nb_slices;
1126 ff_mpv_common_end(s);
1130 /* init common structure for both encoder and decoder */
1131 void ff_mpv_common_end(MpegEncContext *s)
1138 if (s->slice_context_count > 1) {
1139 for (i = 0; i < s->slice_context_count; i++) {
1140 free_duplicate_context(s->thread_context[i]);
1142 for (i = 1; i < s->slice_context_count; i++) {
1143 av_freep(&s->thread_context[i]);
1145 s->slice_context_count = 1;
1146 } else free_duplicate_context(s);
1148 av_freep(&s->parse_context.buffer);
1149 s->parse_context.buffer_size = 0;
1151 av_freep(&s->bitstream_buffer);
1152 s->allocated_bitstream_buffer_size = 0;
1155 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1156 ff_free_picture_tables(&s->picture[i]);
1157 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1158 av_frame_free(&s->picture[i].f);
1161 av_freep(&s->picture);
1162 ff_free_picture_tables(&s->last_picture);
1163 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1164 av_frame_free(&s->last_picture.f);
1165 ff_free_picture_tables(&s->current_picture);
1166 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1167 av_frame_free(&s->current_picture.f);
1168 ff_free_picture_tables(&s->next_picture);
1169 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1170 av_frame_free(&s->next_picture.f);
1171 ff_free_picture_tables(&s->new_picture);
1172 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1173 av_frame_free(&s->new_picture.f);
1175 free_context_frame(s);
1177 s->context_initialized = 0;
1178 s->last_picture_ptr =
1179 s->next_picture_ptr =
1180 s->current_picture_ptr = NULL;
1181 s->linesize = s->uvlinesize = 0;
1185 static void gray_frame(AVFrame *frame)
1187 int i, h_chroma_shift, v_chroma_shift;
1189 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1191 for(i=0; i<frame->height; i++)
1192 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1193 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1194 memset(frame->data[1] + frame->linesize[1]*i,
1195 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1196 memset(frame->data[2] + frame->linesize[2]*i,
1197 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1202 * generic function called after decoding
1203 * the header and before a frame is decoded.
1205 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1211 if (!ff_thread_can_start_frame(avctx)) {
1212 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1216 /* mark & release old frames */
1217 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1218 s->last_picture_ptr != s->next_picture_ptr &&
1219 s->last_picture_ptr->f->buf[0]) {
1220 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1223 /* release forgotten pictures */
1224 /* if (MPEG-124 / H.263) */
1225 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1226 if (&s->picture[i] != s->last_picture_ptr &&
1227 &s->picture[i] != s->next_picture_ptr &&
1228 s->picture[i].reference && !s->picture[i].needs_realloc) {
1229 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1233 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1234 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1235 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1237 /* release non reference frames */
1238 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1239 if (!s->picture[i].reference)
1240 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1243 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1244 // we already have an unused image
1245 // (maybe it was set before reading the header)
1246 pic = s->current_picture_ptr;
1248 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1250 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1253 pic = &s->picture[i];
1257 if (!s->droppable) {
1258 if (s->pict_type != AV_PICTURE_TYPE_B)
1262 pic->f->coded_picture_number = s->coded_picture_number++;
1264 if (alloc_picture(s, pic, 0) < 0)
1267 s->current_picture_ptr = pic;
1268 // FIXME use only the vars from current_pic
1269 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1270 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1271 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1272 if (s->picture_structure != PICT_FRAME)
1273 s->current_picture_ptr->f->top_field_first =
1274 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1276 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1277 !s->progressive_sequence;
1278 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1280 s->current_picture_ptr->f->pict_type = s->pict_type;
1281 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1282 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1283 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1285 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1286 s->current_picture_ptr)) < 0)
1289 if (s->pict_type != AV_PICTURE_TYPE_B) {
1290 s->last_picture_ptr = s->next_picture_ptr;
1292 s->next_picture_ptr = s->current_picture_ptr;
1294 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1295 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1296 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1297 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1298 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1299 s->pict_type, s->droppable);
1301 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1302 (s->pict_type != AV_PICTURE_TYPE_I)) {
1303 int h_chroma_shift, v_chroma_shift;
1304 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1305 &h_chroma_shift, &v_chroma_shift);
1306 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1307 av_log(avctx, AV_LOG_DEBUG,
1308 "allocating dummy last picture for B frame\n");
1309 else if (s->pict_type != AV_PICTURE_TYPE_I)
1310 av_log(avctx, AV_LOG_ERROR,
1311 "warning: first frame is no keyframe\n");
1313 /* Allocate a dummy frame */
1314 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1316 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1319 s->last_picture_ptr = &s->picture[i];
1321 s->last_picture_ptr->reference = 3;
1322 s->last_picture_ptr->f->key_frame = 0;
1323 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1325 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1326 s->last_picture_ptr = NULL;
1330 if (!avctx->hwaccel) {
1331 for(i=0; i<avctx->height; i++)
1332 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1333 0x80, avctx->width);
1334 if (s->last_picture_ptr->f->data[2]) {
1335 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1336 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1337 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1338 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1339 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1343 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1344 for(i=0; i<avctx->height; i++)
1345 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1349 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1350 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1352 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1353 s->pict_type == AV_PICTURE_TYPE_B) {
1354 /* Allocate a dummy frame */
1355 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1357 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1360 s->next_picture_ptr = &s->picture[i];
1362 s->next_picture_ptr->reference = 3;
1363 s->next_picture_ptr->f->key_frame = 0;
1364 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1366 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1367 s->next_picture_ptr = NULL;
1370 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1371 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1374 #if 0 // BUFREF-FIXME
1375 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1376 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1378 if (s->last_picture_ptr) {
1379 if (s->last_picture_ptr->f->buf[0] &&
1380 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1381 s->last_picture_ptr)) < 0)
1384 if (s->next_picture_ptr) {
1385 if (s->next_picture_ptr->f->buf[0] &&
1386 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1387 s->next_picture_ptr)) < 0)
1391 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1392 s->last_picture_ptr->f->buf[0]));
1394 if (s->picture_structure!= PICT_FRAME) {
1396 for (i = 0; i < 4; i++) {
1397 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1398 s->current_picture.f->data[i] +=
1399 s->current_picture.f->linesize[i];
1401 s->current_picture.f->linesize[i] *= 2;
1402 s->last_picture.f->linesize[i] *= 2;
1403 s->next_picture.f->linesize[i] *= 2;
1407 /* set dequantizer, we can't do it during init as
1408 * it might change for MPEG-4 and we can't do it in the header
1409 * decode as init is not called for MPEG-4 there yet */
1410 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1411 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1412 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1413 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1414 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1415 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1417 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1418 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1421 if (s->avctx->debug & FF_DEBUG_NOMC) {
1422 gray_frame(s->current_picture_ptr->f);
1428 /* called after a frame has been decoded. */
1429 void ff_mpv_frame_end(MpegEncContext *s)
1433 if (s->current_picture.reference)
1434 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1437 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1439 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1440 p->qscale_table, p->motion_val, &s->low_delay,
1441 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1444 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1446 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1447 int offset = 2*s->mb_stride + 1;
1449 return AVERROR(ENOMEM);
1450 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1451 ref->size -= offset;
1452 ref->data += offset;
1453 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1456 static inline int hpel_motion_lowres(MpegEncContext *s,
1457 uint8_t *dest, uint8_t *src,
1458 int field_based, int field_select,
1459 int src_x, int src_y,
1460 int width, int height, ptrdiff_t stride,
1461 int h_edge_pos, int v_edge_pos,
1462 int w, int h, h264_chroma_mc_func *pix_op,
1463 int motion_x, int motion_y)
1465 const int lowres = s->avctx->lowres;
1466 const int op_index = FFMIN(lowres, 3);
1467 const int s_mask = (2 << lowres) - 1;
1471 if (s->quarter_sample) {
1476 sx = motion_x & s_mask;
1477 sy = motion_y & s_mask;
1478 src_x += motion_x >> lowres + 1;
1479 src_y += motion_y >> lowres + 1;
1481 src += src_y * stride + src_x;
1483 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1484 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1485 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1486 s->linesize, s->linesize,
1487 w + 1, (h + 1) << field_based,
1488 src_x, src_y << field_based,
1489 h_edge_pos, v_edge_pos);
1490 src = s->sc.edge_emu_buffer;
1494 sx = (sx << 2) >> lowres;
1495 sy = (sy << 2) >> lowres;
1498 pix_op[op_index](dest, src, stride, h, sx, sy);
1502 /* apply one mpeg motion vector to the three components */
1503 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1510 uint8_t **ref_picture,
1511 h264_chroma_mc_func *pix_op,
1512 int motion_x, int motion_y,
1515 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1516 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1517 ptrdiff_t uvlinesize, linesize;
1518 const int lowres = s->avctx->lowres;
1519 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1520 const int block_s = 8>>lowres;
1521 const int s_mask = (2 << lowres) - 1;
1522 const int h_edge_pos = s->h_edge_pos >> lowres;
1523 const int v_edge_pos = s->v_edge_pos >> lowres;
1524 linesize = s->current_picture.f->linesize[0] << field_based;
1525 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1527 // FIXME obviously not perfect but qpel will not work in lowres anyway
1528 if (s->quarter_sample) {
1534 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1537 sx = motion_x & s_mask;
1538 sy = motion_y & s_mask;
1539 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1540 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1542 if (s->out_format == FMT_H263) {
1543 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1544 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1545 uvsrc_x = src_x >> 1;
1546 uvsrc_y = src_y >> 1;
1547 } else if (s->out_format == FMT_H261) {
1548 // even chroma mv's are full pel in H261
1551 uvsx = (2 * mx) & s_mask;
1552 uvsy = (2 * my) & s_mask;
1553 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1554 uvsrc_y = mb_y * block_s + (my >> lowres);
1556 if(s->chroma_y_shift){
1561 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1562 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1564 if(s->chroma_x_shift){
1568 uvsy = motion_y & s_mask;
1570 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1573 uvsx = motion_x & s_mask;
1574 uvsy = motion_y & s_mask;
1581 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1582 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1583 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1585 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1586 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1587 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1588 linesize >> field_based, linesize >> field_based,
1589 17, 17 + field_based,
1590 src_x, src_y << field_based, h_edge_pos,
1592 ptr_y = s->sc.edge_emu_buffer;
1593 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1594 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1595 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1596 if (s->workaround_bugs & FF_BUG_IEDGE)
1597 vbuf -= s->uvlinesize;
1598 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1599 uvlinesize >> field_based, uvlinesize >> field_based,
1601 uvsrc_x, uvsrc_y << field_based,
1602 h_edge_pos >> 1, v_edge_pos >> 1);
1603 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1604 uvlinesize >> field_based,uvlinesize >> field_based,
1606 uvsrc_x, uvsrc_y << field_based,
1607 h_edge_pos >> 1, v_edge_pos >> 1);
1613 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1615 dest_y += s->linesize;
1616 dest_cb += s->uvlinesize;
1617 dest_cr += s->uvlinesize;
1621 ptr_y += s->linesize;
1622 ptr_cb += s->uvlinesize;
1623 ptr_cr += s->uvlinesize;
1626 sx = (sx << 2) >> lowres;
1627 sy = (sy << 2) >> lowres;
1628 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1630 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1631 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1632 uvsx = (uvsx << 2) >> lowres;
1633 uvsy = (uvsy << 2) >> lowres;
1635 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1636 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1639 // FIXME h261 lowres loop filter
1642 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1643 uint8_t *dest_cb, uint8_t *dest_cr,
1644 uint8_t **ref_picture,
1645 h264_chroma_mc_func * pix_op,
1648 const int lowres = s->avctx->lowres;
1649 const int op_index = FFMIN(lowres, 3);
1650 const int block_s = 8 >> lowres;
1651 const int s_mask = (2 << lowres) - 1;
1652 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1653 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1654 int emu = 0, src_x, src_y, sx, sy;
1658 if (s->quarter_sample) {
1663 /* In case of 8X8, we construct a single chroma motion vector
1664 with a special rounding */
1665 mx = ff_h263_round_chroma(mx);
1666 my = ff_h263_round_chroma(my);
1670 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1671 src_y = s->mb_y * block_s + (my >> lowres + 1);
1673 offset = src_y * s->uvlinesize + src_x;
1674 ptr = ref_picture[1] + offset;
1675 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1676 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1677 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1678 s->uvlinesize, s->uvlinesize,
1680 src_x, src_y, h_edge_pos, v_edge_pos);
1681 ptr = s->sc.edge_emu_buffer;
1684 sx = (sx << 2) >> lowres;
1685 sy = (sy << 2) >> lowres;
1686 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1688 ptr = ref_picture[2] + offset;
1690 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1691 s->uvlinesize, s->uvlinesize,
1693 src_x, src_y, h_edge_pos, v_edge_pos);
1694 ptr = s->sc.edge_emu_buffer;
1696 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1700 * motion compensation of a single macroblock
1702 * @param dest_y luma destination pointer
1703 * @param dest_cb chroma cb/u destination pointer
1704 * @param dest_cr chroma cr/v destination pointer
1705 * @param dir direction (0->forward, 1->backward)
1706 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1707 * @param pix_op halfpel motion compensation function (average or put normally)
1708 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1710 static inline void MPV_motion_lowres(MpegEncContext *s,
1711 uint8_t *dest_y, uint8_t *dest_cb,
1713 int dir, uint8_t **ref_picture,
1714 h264_chroma_mc_func *pix_op)
1718 const int lowres = s->avctx->lowres;
1719 const int block_s = 8 >>lowres;
1724 switch (s->mv_type) {
1726 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1728 ref_picture, pix_op,
1729 s->mv[dir][0][0], s->mv[dir][0][1],
1735 for (i = 0; i < 4; i++) {
1736 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1737 s->linesize) * block_s,
1738 ref_picture[0], 0, 0,
1739 (2 * mb_x + (i & 1)) * block_s,
1740 (2 * mb_y + (i >> 1)) * block_s,
1741 s->width, s->height, s->linesize,
1742 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1743 block_s, block_s, pix_op,
1744 s->mv[dir][i][0], s->mv[dir][i][1]);
1746 mx += s->mv[dir][i][0];
1747 my += s->mv[dir][i][1];
1750 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1751 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1755 if (s->picture_structure == PICT_FRAME) {
1757 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1758 1, 0, s->field_select[dir][0],
1759 ref_picture, pix_op,
1760 s->mv[dir][0][0], s->mv[dir][0][1],
1763 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1764 1, 1, s->field_select[dir][1],
1765 ref_picture, pix_op,
1766 s->mv[dir][1][0], s->mv[dir][1][1],
1769 if (s->picture_structure != s->field_select[dir][0] + 1 &&
1770 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1771 ref_picture = s->current_picture_ptr->f->data;
1774 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1775 0, 0, s->field_select[dir][0],
1776 ref_picture, pix_op,
1778 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1782 for (i = 0; i < 2; i++) {
1783 uint8_t **ref2picture;
1785 if (s->picture_structure == s->field_select[dir][i] + 1 ||
1786 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1787 ref2picture = ref_picture;
1789 ref2picture = s->current_picture_ptr->f->data;
1792 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1793 0, 0, s->field_select[dir][i],
1794 ref2picture, pix_op,
1795 s->mv[dir][i][0], s->mv[dir][i][1] +
1796 2 * block_s * i, block_s, mb_y >> 1);
1798 dest_y += 2 * block_s * s->linesize;
1799 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1800 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1804 if (s->picture_structure == PICT_FRAME) {
1805 for (i = 0; i < 2; i++) {
1807 for (j = 0; j < 2; j++) {
1808 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1810 ref_picture, pix_op,
1811 s->mv[dir][2 * i + j][0],
1812 s->mv[dir][2 * i + j][1],
1815 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1818 for (i = 0; i < 2; i++) {
1819 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1820 0, 0, s->picture_structure != i + 1,
1821 ref_picture, pix_op,
1822 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1823 2 * block_s, mb_y >> 1);
1825 // after put we make avg of the same block
1826 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1828 // opposite parity is always in the same
1829 // frame if this is second field
1830 if (!s->first_field) {
1831 ref_picture = s->current_picture_ptr->f->data;
1842 * find the lowest MB row referenced in the MVs
1844 static int lowest_referenced_row(MpegEncContext *s, int dir)
1846 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1847 int my, off, i, mvs;
1849 if (s->picture_structure != PICT_FRAME || s->mcsel)
1852 switch (s->mv_type) {
1866 for (i = 0; i < mvs; i++) {
1867 my = s->mv[dir][i][1];
1868 my_max = FFMAX(my_max, my);
1869 my_min = FFMIN(my_min, my);
1872 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1874 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1876 return s->mb_height-1;
1879 /* put block[] to dest[] */
1880 static inline void put_dct(MpegEncContext *s,
1881 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1883 s->dct_unquantize_intra(s, block, i, qscale);
1884 s->idsp.idct_put(dest, line_size, block);
1887 /* add block[] to dest[] */
1888 static inline void add_dct(MpegEncContext *s,
1889 int16_t *block, int i, uint8_t *dest, int line_size)
1891 if (s->block_last_index[i] >= 0) {
1892 s->idsp.idct_add(dest, line_size, block);
1896 static inline void add_dequant_dct(MpegEncContext *s,
1897 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1899 if (s->block_last_index[i] >= 0) {
1900 s->dct_unquantize_inter(s, block, i, qscale);
1902 s->idsp.idct_add(dest, line_size, block);
1907 * Clean dc, ac, coded_block for the current non-intra MB.
1909 void ff_clean_intra_table_entries(MpegEncContext *s)
1911 int wrap = s->b8_stride;
1912 int xy = s->block_index[0];
1915 s->dc_val[0][xy + 1 ] =
1916 s->dc_val[0][xy + wrap] =
1917 s->dc_val[0][xy + 1 + wrap] = 1024;
1919 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1920 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1921 if (s->msmpeg4_version>=3) {
1922 s->coded_block[xy ] =
1923 s->coded_block[xy + 1 ] =
1924 s->coded_block[xy + wrap] =
1925 s->coded_block[xy + 1 + wrap] = 0;
1928 wrap = s->mb_stride;
1929 xy = s->mb_x + s->mb_y * wrap;
1931 s->dc_val[2][xy] = 1024;
1933 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1934 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1936 s->mbintra_table[xy]= 0;
1939 /* generic function called after a macroblock has been parsed by the
1940 decoder or after it has been encoded by the encoder.
1942 Important variables used:
1943 s->mb_intra : true if intra macroblock
1944 s->mv_dir : motion vector direction
1945 s->mv_type : motion vector type
1946 s->mv : motion vector
1947 s->interlaced_dct : true if interlaced dct used (mpeg2)
1949 static av_always_inline
1950 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1951 int lowres_flag, int is_mpeg12)
1953 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1956 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1957 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1961 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1962 /* print DCT coefficients */
1964 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1966 for(j=0; j<64; j++){
1967 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1968 block[i][s->idsp.idct_permutation[j]]);
1970 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1974 s->current_picture.qscale_table[mb_xy] = s->qscale;
1976 /* update DC predictors for P macroblocks */
1978 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1979 if(s->mbintra_table[mb_xy])
1980 ff_clean_intra_table_entries(s);
1984 s->last_dc[2] = 128 << s->intra_dc_precision;
1987 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1988 s->mbintra_table[mb_xy]=1;
1990 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1991 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1992 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1993 uint8_t *dest_y, *dest_cb, *dest_cr;
1994 int dct_linesize, dct_offset;
1995 op_pixels_func (*op_pix)[4];
1996 qpel_mc_func (*op_qpix)[16];
1997 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1998 const int uvlinesize = s->current_picture.f->linesize[1];
1999 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2000 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2002 /* avoid copy if macroblock skipped in last frame too */
2003 /* skip only during decoding as we might trash the buffers during encoding a bit */
2005 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2007 if (s->mb_skipped) {
2009 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2011 } else if(!s->current_picture.reference) {
2014 *mbskip_ptr = 0; /* not skipped */
2018 dct_linesize = linesize << s->interlaced_dct;
2019 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2023 dest_cb= s->dest[1];
2024 dest_cr= s->dest[2];
2026 dest_y = s->sc.b_scratchpad;
2027 dest_cb= s->sc.b_scratchpad+16*linesize;
2028 dest_cr= s->sc.b_scratchpad+32*linesize;
2032 /* motion handling */
2033 /* decoding or more than one mb_type (MC was already done otherwise) */
2036 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2037 if (s->mv_dir & MV_DIR_FORWARD) {
2038 ff_thread_await_progress(&s->last_picture_ptr->tf,
2039 lowest_referenced_row(s, 0),
2042 if (s->mv_dir & MV_DIR_BACKWARD) {
2043 ff_thread_await_progress(&s->next_picture_ptr->tf,
2044 lowest_referenced_row(s, 1),
2050 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2052 if (s->mv_dir & MV_DIR_FORWARD) {
2053 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2054 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2056 if (s->mv_dir & MV_DIR_BACKWARD) {
2057 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2060 op_qpix = s->me.qpel_put;
2061 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2062 op_pix = s->hdsp.put_pixels_tab;
2064 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2066 if (s->mv_dir & MV_DIR_FORWARD) {
2067 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2068 op_pix = s->hdsp.avg_pixels_tab;
2069 op_qpix= s->me.qpel_avg;
2071 if (s->mv_dir & MV_DIR_BACKWARD) {
2072 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2077 /* skip dequant / idct if we are really late ;) */
2078 if(s->avctx->skip_idct){
2079 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2080 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2081 || s->avctx->skip_idct >= AVDISCARD_ALL)
2085 /* add dct residue */
2086 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2087 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2088 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2089 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2090 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2091 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2093 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2094 if (s->chroma_y_shift){
2095 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2096 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2100 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2101 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2102 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2103 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2106 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2107 add_dct(s, block[0], 0, dest_y , dct_linesize);
2108 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2109 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2110 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2112 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2113 if(s->chroma_y_shift){//Chroma420
2114 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2115 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2118 dct_linesize = uvlinesize << s->interlaced_dct;
2119 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2121 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2122 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2123 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2124 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2125 if(!s->chroma_x_shift){//Chroma444
2126 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2127 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2128 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2129 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2134 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2135 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2138 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2139 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2140 if (s->avctx->bits_per_raw_sample > 8){
2141 const int act_block_size = block_size * 2;
2143 if(s->dpcm_direction == 0) {
2144 s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
2145 s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2146 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
2147 s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2149 dct_linesize = uvlinesize << s->interlaced_dct;
2150 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2152 s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
2153 s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
2154 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2155 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2156 if(!s->chroma_x_shift){//Chroma444
2157 s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
2158 s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
2159 s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2160 s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2162 } else if(s->dpcm_direction == 1) {
2164 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2165 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2166 for(i = 0; i < 3; i++) {
2168 int vsub = i ? s->chroma_y_shift : 0;
2169 int hsub = i ? s->chroma_x_shift : 0;
2170 for(h = 0; h < (16 >> vsub); h++){
2171 for(w = 0; w < (16 >> hsub); w++)
2172 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2173 dest_pcm[i] += linesize[i] / 2;
2176 } else if(s->dpcm_direction == -1) {
2178 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2179 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2180 for(i = 0; i < 3; i++) {
2182 int vsub = i ? s->chroma_y_shift : 0;
2183 int hsub = i ? s->chroma_x_shift : 0;
2184 dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2185 for(h = (16 >> vsub)-1; h >= 1; h--){
2186 for(w = (16 >> hsub)-1; w >= 1; w--)
2187 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2188 dest_pcm[i] -= linesize[i] / 2;
2193 /* dct only in intra block */
2194 else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2195 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2196 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2197 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2198 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2200 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2201 if(s->chroma_y_shift){
2202 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2203 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2207 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2208 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2209 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2210 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2214 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2215 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2216 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2217 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2219 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2220 if(s->chroma_y_shift){
2221 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2222 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2225 dct_linesize = uvlinesize << s->interlaced_dct;
2226 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2228 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2229 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2230 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2231 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2232 if(!s->chroma_x_shift){//Chroma444
2233 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2234 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2235 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2236 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2244 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2245 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2246 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2247 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2253 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2256 if(s->out_format == FMT_MPEG1) {
2257 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2258 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2261 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2262 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2265 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2267 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2268 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2269 s->first_field, s->low_delay);
2272 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2273 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2274 const int uvlinesize = s->current_picture.f->linesize[1];
2275 const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2276 const int height_of_mb = 4 - s->avctx->lowres;
2278 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2279 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2280 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2281 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2282 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2283 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;
2284 //block_index is not used by mpeg2, so it is not affected by chroma_format
2286 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
2287 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2288 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2290 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2292 if(s->picture_structure==PICT_FRAME){
2293 s->dest[0] += s->mb_y * linesize << height_of_mb;
2294 s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2295 s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2297 s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
2298 s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2299 s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2300 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2305 void ff_mpeg_flush(AVCodecContext *avctx){
2307 MpegEncContext *s = avctx->priv_data;
2309 if (!s || !s->picture)
2312 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2313 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2314 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2316 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2317 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2318 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2320 s->mb_x= s->mb_y= 0;
2323 s->parse_context.state= -1;
2324 s->parse_context.frame_start_found= 0;
2325 s->parse_context.overread= 0;
2326 s->parse_context.overread_index= 0;
2327 s->parse_context.index= 0;
2328 s->parse_context.last_index= 0;
2329 s->bitstream_buffer_size=0;
2334 * set qscale and update qscale dependent variables.
2336 void ff_set_qscale(MpegEncContext * s, int qscale)
2340 else if (qscale > 31)
2344 s->chroma_qscale= s->chroma_qscale_table[qscale];
2346 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2347 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2350 void ff_mpv_report_decode_progress(MpegEncContext *s)
2352 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2353 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);