2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/motion_vector.h"
35 #include "libavutil/timer.h"
38 #include "h264chroma.h"
43 #include "mpegutils.h"
44 #include "mpegvideo.h"
45 #include "mpegvideodata.h"
53 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
54 int16_t *block, int n, int qscale)
56 int i, level, nCoeffs;
57 const uint16_t *quant_matrix;
59 nCoeffs= s->block_last_index[n];
61 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
62 /* XXX: only MPEG-1 */
63 quant_matrix = s->intra_matrix;
64 for(i=1;i<=nCoeffs;i++) {
65 int j= s->intra_scantable.permutated[i];
70 level = (int)(level * qscale * quant_matrix[j]) >> 3;
71 level = (level - 1) | 1;
74 level = (int)(level * qscale * quant_matrix[j]) >> 3;
75 level = (level - 1) | 1;
82 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
83 int16_t *block, int n, int qscale)
85 int i, level, nCoeffs;
86 const uint16_t *quant_matrix;
88 nCoeffs= s->block_last_index[n];
90 quant_matrix = s->inter_matrix;
91 for(i=0; i<=nCoeffs; i++) {
92 int j= s->intra_scantable.permutated[i];
97 level = (((level << 1) + 1) * qscale *
98 ((int) (quant_matrix[j]))) >> 4;
99 level = (level - 1) | 1;
102 level = (((level << 1) + 1) * qscale *
103 ((int) (quant_matrix[j]))) >> 4;
104 level = (level - 1) | 1;
111 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
112 int16_t *block, int n, int qscale)
114 int i, level, nCoeffs;
115 const uint16_t *quant_matrix;
117 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
120 if(s->alternate_scan) nCoeffs= 63;
121 else nCoeffs= s->block_last_index[n];
123 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
124 quant_matrix = s->intra_matrix;
125 for(i=1;i<=nCoeffs;i++) {
126 int j= s->intra_scantable.permutated[i];
131 level = (int)(level * qscale * quant_matrix[j]) >> 4;
134 level = (int)(level * qscale * quant_matrix[j]) >> 4;
141 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
142 int16_t *block, int n, int qscale)
144 int i, level, nCoeffs;
145 const uint16_t *quant_matrix;
148 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
151 if(s->alternate_scan) nCoeffs= 63;
152 else nCoeffs= s->block_last_index[n];
154 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
156 quant_matrix = s->intra_matrix;
157 for(i=1;i<=nCoeffs;i++) {
158 int j= s->intra_scantable.permutated[i];
163 level = (int)(level * qscale * quant_matrix[j]) >> 4;
166 level = (int)(level * qscale * quant_matrix[j]) >> 4;
175 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
176 int16_t *block, int n, int qscale)
178 int i, level, nCoeffs;
179 const uint16_t *quant_matrix;
182 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
185 if(s->alternate_scan) nCoeffs= 63;
186 else nCoeffs= s->block_last_index[n];
188 quant_matrix = s->inter_matrix;
189 for(i=0; i<=nCoeffs; i++) {
190 int j= s->intra_scantable.permutated[i];
195 level = (((level << 1) + 1) * qscale *
196 ((int) (quant_matrix[j]))) >> 5;
199 level = (((level << 1) + 1) * qscale *
200 ((int) (quant_matrix[j]))) >> 5;
209 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
210 int16_t *block, int n, int qscale)
212 int i, level, qmul, qadd;
215 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
220 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
221 qadd = (qscale - 1) | 1;
228 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
230 for(i=1; i<=nCoeffs; i++) {
234 level = level * qmul - qadd;
236 level = level * qmul + qadd;
243 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
244 int16_t *block, int n, int qscale)
246 int i, level, qmul, qadd;
249 av_assert2(s->block_last_index[n]>=0);
251 qadd = (qscale - 1) | 1;
254 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
256 for(i=0; i<=nCoeffs; i++) {
260 level = level * qmul - qadd;
262 level = level * qmul + qadd;
270 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
273 memset(dst + h*linesize, 128, 16);
276 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
279 memset(dst + h*linesize, 128, 8);
282 /* init common dct for both encoder and decoder */
283 static av_cold int dct_init(MpegEncContext *s)
285 ff_blockdsp_init(&s->bdsp, s->avctx);
286 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
287 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
288 ff_mpegvideodsp_init(&s->mdsp);
289 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
291 if (s->avctx->debug & FF_DEBUG_NOMC) {
293 for (i=0; i<4; i++) {
294 s->hdsp.avg_pixels_tab[0][i] = gray16;
295 s->hdsp.put_pixels_tab[0][i] = gray16;
296 s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
298 s->hdsp.avg_pixels_tab[1][i] = gray8;
299 s->hdsp.put_pixels_tab[1][i] = gray8;
300 s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
304 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
305 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
306 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
307 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
308 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
309 if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
310 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
311 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
313 if (HAVE_INTRINSICS_NEON)
314 ff_mpv_common_init_neon(s);
317 ff_mpv_common_init_axp(s);
319 ff_mpv_common_init_arm(s);
321 ff_mpv_common_init_ppc(s);
323 ff_mpv_common_init_x86(s);
325 ff_mpv_common_init_mips(s);
330 av_cold void ff_mpv_idct_init(MpegEncContext *s)
332 ff_idctdsp_init(&s->idsp, s->avctx);
334 /* load & permutate scantables
335 * note: only wmv uses different ones
337 if (s->alternate_scan) {
338 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
339 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
341 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
342 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
344 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
345 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
348 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
350 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
351 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
352 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
353 &s->linesize, &s->uvlinesize);
356 static int init_duplicate_context(MpegEncContext *s)
358 int y_size = s->b8_stride * (2 * s->mb_height + 1);
359 int c_size = s->mb_stride * (s->mb_height + 1);
360 int yc_size = y_size + 2 * c_size;
363 if (s->mb_height & 1)
364 yc_size += 2*s->b8_stride + 2*s->mb_stride;
366 s->sc.edge_emu_buffer =
369 s->sc.rd_scratchpad =
371 s->sc.obmc_scratchpad = NULL;
374 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
375 ME_MAP_SIZE * sizeof(uint32_t), fail)
376 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
377 ME_MAP_SIZE * sizeof(uint32_t), fail)
378 if (s->noise_reduction) {
379 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
380 2 * 64 * sizeof(int), fail)
383 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
384 s->block = s->blocks[0];
386 for (i = 0; i < 12; i++) {
387 s->pblocks[i] = &s->block[i];
390 FF_ALLOCZ_OR_GOTO(s->avctx, s->block32, sizeof(*s->block32), fail)
392 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
394 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
397 if (s->out_format == FMT_H263) {
399 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
400 yc_size * sizeof(int16_t) * 16, fail);
401 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
402 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
403 s->ac_val[2] = s->ac_val[1] + c_size;
408 return -1; // free() through ff_mpv_common_end()
411 static void free_duplicate_context(MpegEncContext *s)
416 av_freep(&s->sc.edge_emu_buffer);
417 av_freep(&s->me.scratchpad);
419 s->sc.rd_scratchpad =
421 s->sc.obmc_scratchpad = NULL;
423 av_freep(&s->dct_error_sum);
424 av_freep(&s->me.map);
425 av_freep(&s->me.score_map);
426 av_freep(&s->blocks);
427 av_freep(&s->block32);
428 av_freep(&s->ac_val_base);
432 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
434 #define COPY(a) bak->a = src->a
435 COPY(sc.edge_emu_buffer);
438 COPY(sc.rd_scratchpad);
439 COPY(sc.b_scratchpad);
440 COPY(sc.obmc_scratchpad);
448 COPY(me.map_generation);
460 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
464 // FIXME copy only needed parts
466 backup_duplicate_context(&bak, dst);
467 memcpy(dst, src, sizeof(MpegEncContext));
468 backup_duplicate_context(dst, &bak);
469 for (i = 0; i < 12; i++) {
470 dst->pblocks[i] = &dst->block[i];
472 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
474 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
476 if (!dst->sc.edge_emu_buffer &&
477 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
478 &dst->sc, dst->linesize)) < 0) {
479 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
480 "scratch buffers.\n");
483 // STOP_TIMER("update_duplicate_context")
484 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
488 int ff_mpeg_update_thread_context(AVCodecContext *dst,
489 const AVCodecContext *src)
492 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
499 // FIXME can parameters change on I-frames?
500 // in that case dst may need a reinit
501 if (!s->context_initialized) {
503 memcpy(s, s1, sizeof(MpegEncContext));
506 s->bitstream_buffer = NULL;
507 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
509 if (s1->context_initialized){
510 // s->picture_range_start += MAX_PICTURE_COUNT;
511 // s->picture_range_end += MAX_PICTURE_COUNT;
513 if((err = ff_mpv_common_init(s)) < 0){
514 memset(s, 0, sizeof(MpegEncContext));
521 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
522 s->context_reinit = 0;
523 s->height = s1->height;
524 s->width = s1->width;
525 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
529 s->avctx->coded_height = s1->avctx->coded_height;
530 s->avctx->coded_width = s1->avctx->coded_width;
531 s->avctx->width = s1->avctx->width;
532 s->avctx->height = s1->avctx->height;
534 s->coded_picture_number = s1->coded_picture_number;
535 s->picture_number = s1->picture_number;
537 av_assert0(!s->picture || s->picture != s1->picture);
539 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
540 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
541 if (s1->picture && s1->picture[i].f->buf[0] &&
542 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
546 #define UPDATE_PICTURE(pic)\
548 ff_mpeg_unref_picture(s->avctx, &s->pic);\
549 if (s1->pic.f && s1->pic.f->buf[0])\
550 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
552 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
557 UPDATE_PICTURE(current_picture);
558 UPDATE_PICTURE(last_picture);
559 UPDATE_PICTURE(next_picture);
561 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
562 ((pic && pic >= old_ctx->picture && \
563 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
564 &new_ctx->picture[pic - old_ctx->picture] : NULL)
566 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
567 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
568 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
570 // Error/bug resilience
571 s->next_p_frame_damaged = s1->next_p_frame_damaged;
572 s->workaround_bugs = s1->workaround_bugs;
573 s->padding_bug_score = s1->padding_bug_score;
575 // MPEG-4 timing info
576 memcpy(&s->last_time_base, &s1->last_time_base,
577 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
578 (char *) &s1->last_time_base);
581 s->max_b_frames = s1->max_b_frames;
582 s->low_delay = s1->low_delay;
583 s->droppable = s1->droppable;
585 // DivX handling (doesn't work)
586 s->divx_packed = s1->divx_packed;
588 if (s1->bitstream_buffer) {
589 if (s1->bitstream_buffer_size +
590 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
591 av_fast_malloc(&s->bitstream_buffer,
592 &s->allocated_bitstream_buffer_size,
593 s1->allocated_bitstream_buffer_size);
594 if (!s->bitstream_buffer) {
595 s->bitstream_buffer_size = 0;
596 return AVERROR(ENOMEM);
599 s->bitstream_buffer_size = s1->bitstream_buffer_size;
600 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
601 s1->bitstream_buffer_size);
602 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
603 AV_INPUT_BUFFER_PADDING_SIZE);
606 // linesize-dependent scratch buffer allocation
607 if (!s->sc.edge_emu_buffer)
609 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
610 &s->sc, s1->linesize) < 0) {
611 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
612 "scratch buffers.\n");
613 return AVERROR(ENOMEM);
616 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
617 "be allocated due to unknown size.\n");
620 // MPEG-2/interlacing info
621 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
622 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
624 if (!s1->first_field) {
625 s->last_pict_type = s1->pict_type;
626 if (s1->current_picture_ptr)
627 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
634 * Set the given MpegEncContext to common defaults
635 * (same for encoding and decoding).
636 * The changed fields will not depend upon the
637 * prior state of the MpegEncContext.
639 void ff_mpv_common_defaults(MpegEncContext *s)
641 s->y_dc_scale_table =
642 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
643 s->chroma_qscale_table = ff_default_chroma_qscale_table;
644 s->progressive_frame = 1;
645 s->progressive_sequence = 1;
646 s->picture_structure = PICT_FRAME;
648 s->coded_picture_number = 0;
649 s->picture_number = 0;
654 s->slice_context_count = 1;
658 * Set the given MpegEncContext to defaults for decoding.
659 * the changed fields will not depend upon
660 * the prior state of the MpegEncContext.
662 void ff_mpv_decode_defaults(MpegEncContext *s)
664 ff_mpv_common_defaults(s);
667 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
670 s->width = avctx->coded_width;
671 s->height = avctx->coded_height;
672 s->codec_id = avctx->codec->id;
673 s->workaround_bugs = avctx->workaround_bugs;
675 /* convert fourcc to upper case */
676 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
680 * Initialize and allocates MpegEncContext fields dependent on the resolution.
682 static int init_context_frame(MpegEncContext *s)
684 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
686 s->mb_width = (s->width + 15) / 16;
687 s->mb_stride = s->mb_width + 1;
688 s->b8_stride = s->mb_width * 2 + 1;
689 mb_array_size = s->mb_height * s->mb_stride;
690 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
692 /* set default edge pos, will be overridden
693 * in decode_header if needed */
694 s->h_edge_pos = s->mb_width * 16;
695 s->v_edge_pos = s->mb_height * 16;
697 s->mb_num = s->mb_width * s->mb_height;
702 s->block_wrap[3] = s->b8_stride;
704 s->block_wrap[5] = s->mb_stride;
706 y_size = s->b8_stride * (2 * s->mb_height + 1);
707 c_size = s->mb_stride * (s->mb_height + 1);
708 yc_size = y_size + 2 * c_size;
710 if (s->mb_height & 1)
711 yc_size += 2*s->b8_stride + 2*s->mb_stride;
713 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
714 fail); // error resilience code looks cleaner with this
715 for (y = 0; y < s->mb_height; y++)
716 for (x = 0; x < s->mb_width; x++)
717 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
719 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
722 /* Allocate MV tables */
723 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
724 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
725 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
726 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
727 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
728 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
729 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
730 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
731 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
732 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
733 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
734 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
736 /* Allocate MB type table */
737 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
739 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
741 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
742 mb_array_size * sizeof(float), fail);
743 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
744 mb_array_size * sizeof(float), fail);
748 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
749 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
750 /* interlaced direct mode decoding tables */
751 for (i = 0; i < 2; i++) {
753 for (j = 0; j < 2; j++) {
754 for (k = 0; k < 2; k++) {
755 FF_ALLOCZ_OR_GOTO(s->avctx,
756 s->b_field_mv_table_base[i][j][k],
757 mv_table_size * 2 * sizeof(int16_t),
759 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
762 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
763 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
764 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
766 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
769 if (s->out_format == FMT_H263) {
771 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
772 s->coded_block = s->coded_block_base + s->b8_stride + 1;
774 /* cbp, ac_pred, pred_dir */
775 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
776 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
779 if (s->h263_pred || s->h263_plus || !s->encoding) {
781 // MN: we need these for error resilience of intra-frames
782 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
783 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
784 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
785 s->dc_val[2] = s->dc_val[1] + c_size;
786 for (i = 0; i < yc_size; i++)
787 s->dc_val_base[i] = 1024;
790 /* which mb is an intra block */
791 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
792 memset(s->mbintra_table, 1, mb_array_size);
794 /* init macroblock skip table */
795 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
796 // Note the + 1 is for a quicker MPEG-4 slice_end detection
798 return ff_mpeg_er_init(s);
800 return AVERROR(ENOMEM);
803 static void clear_context(MpegEncContext *s)
807 memset(&s->next_picture, 0, sizeof(s->next_picture));
808 memset(&s->last_picture, 0, sizeof(s->last_picture));
809 memset(&s->current_picture, 0, sizeof(s->current_picture));
810 memset(&s->new_picture, 0, sizeof(s->new_picture));
812 memset(s->thread_context, 0, sizeof(s->thread_context));
815 s->me.score_map = NULL;
816 s->dct_error_sum = NULL;
820 memset(s->pblocks, 0, sizeof(s->pblocks));
821 s->ac_val_base = NULL;
825 s->sc.edge_emu_buffer = NULL;
826 s->me.scratchpad = NULL;
828 s->sc.rd_scratchpad =
830 s->sc.obmc_scratchpad = NULL;
833 s->bitstream_buffer = NULL;
834 s->allocated_bitstream_buffer_size = 0;
837 s->p_mv_table_base = NULL;
838 s->b_forw_mv_table_base = NULL;
839 s->b_back_mv_table_base = NULL;
840 s->b_bidir_forw_mv_table_base = NULL;
841 s->b_bidir_back_mv_table_base = NULL;
842 s->b_direct_mv_table_base = NULL;
843 s->p_mv_table = NULL;
844 s->b_forw_mv_table = NULL;
845 s->b_back_mv_table = NULL;
846 s->b_bidir_forw_mv_table = NULL;
847 s->b_bidir_back_mv_table = NULL;
848 s->b_direct_mv_table = NULL;
849 for (i = 0; i < 2; i++) {
850 for (j = 0; j < 2; j++) {
851 for (k = 0; k < 2; k++) {
852 s->b_field_mv_table_base[i][j][k] = NULL;
853 s->b_field_mv_table[i][j][k] = NULL;
855 s->b_field_select_table[i][j] = NULL;
856 s->p_field_mv_table_base[i][j] = NULL;
857 s->p_field_mv_table[i][j] = NULL;
859 s->p_field_select_table[i] = NULL;
862 s->dc_val_base = NULL;
863 s->coded_block_base = NULL;
864 s->mbintra_table = NULL;
866 s->pred_dir_table = NULL;
868 s->mbskip_table = NULL;
870 s->er.error_status_table = NULL;
871 s->er.er_temp_buffer = NULL;
872 s->mb_index2xy = NULL;
873 s->lambda_table = NULL;
880 * init common structure for both encoder and decoder.
881 * this assumes that some variables like width/height are already set
883 av_cold int ff_mpv_common_init(MpegEncContext *s)
886 int nb_slices = (HAVE_THREADS &&
887 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
888 s->avctx->thread_count : 1;
892 if (s->encoding && s->avctx->slices)
893 nb_slices = s->avctx->slices;
895 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
896 s->mb_height = (s->height + 31) / 32 * 2;
898 s->mb_height = (s->height + 15) / 16;
900 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
901 av_log(s->avctx, AV_LOG_ERROR,
902 "decoding to AV_PIX_FMT_NONE is not supported.\n");
906 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
909 max_slices = FFMIN(MAX_THREADS, s->mb_height);
911 max_slices = MAX_THREADS;
912 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
913 " reducing to %d\n", nb_slices, max_slices);
914 nb_slices = max_slices;
917 if ((s->width || s->height) &&
918 av_image_check_size(s->width, s->height, 0, s->avctx))
923 /* set chroma shifts */
924 ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
930 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
931 MAX_PICTURE_COUNT * sizeof(Picture), fail);
932 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
933 s->picture[i].f = av_frame_alloc();
934 if (!s->picture[i].f)
937 s->next_picture.f = av_frame_alloc();
938 if (!s->next_picture.f)
940 s->last_picture.f = av_frame_alloc();
941 if (!s->last_picture.f)
943 s->current_picture.f = av_frame_alloc();
944 if (!s->current_picture.f)
946 s->new_picture.f = av_frame_alloc();
947 if (!s->new_picture.f)
950 if (init_context_frame(s))
953 s->parse_context.state = -1;
955 s->context_initialized = 1;
956 memset(s->thread_context, 0, sizeof(s->thread_context));
957 s->thread_context[0] = s;
959 // if (s->width && s->height) {
961 for (i = 0; i < nb_slices; i++) {
963 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
964 if (!s->thread_context[i])
967 if (init_duplicate_context(s->thread_context[i]) < 0)
969 s->thread_context[i]->start_mb_y =
970 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
971 s->thread_context[i]->end_mb_y =
972 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
975 if (init_duplicate_context(s) < 0)
978 s->end_mb_y = s->mb_height;
980 s->slice_context_count = nb_slices;
985 ff_mpv_common_end(s);
990 * Frees and resets MpegEncContext fields depending on the resolution.
991 * Is used during resolution changes to avoid a full reinitialization of the
994 static void free_context_frame(MpegEncContext *s)
998 av_freep(&s->mb_type);
999 av_freep(&s->p_mv_table_base);
1000 av_freep(&s->b_forw_mv_table_base);
1001 av_freep(&s->b_back_mv_table_base);
1002 av_freep(&s->b_bidir_forw_mv_table_base);
1003 av_freep(&s->b_bidir_back_mv_table_base);
1004 av_freep(&s->b_direct_mv_table_base);
1005 s->p_mv_table = NULL;
1006 s->b_forw_mv_table = NULL;
1007 s->b_back_mv_table = NULL;
1008 s->b_bidir_forw_mv_table = NULL;
1009 s->b_bidir_back_mv_table = NULL;
1010 s->b_direct_mv_table = NULL;
1011 for (i = 0; i < 2; i++) {
1012 for (j = 0; j < 2; j++) {
1013 for (k = 0; k < 2; k++) {
1014 av_freep(&s->b_field_mv_table_base[i][j][k]);
1015 s->b_field_mv_table[i][j][k] = NULL;
1017 av_freep(&s->b_field_select_table[i][j]);
1018 av_freep(&s->p_field_mv_table_base[i][j]);
1019 s->p_field_mv_table[i][j] = NULL;
1021 av_freep(&s->p_field_select_table[i]);
1024 av_freep(&s->dc_val_base);
1025 av_freep(&s->coded_block_base);
1026 av_freep(&s->mbintra_table);
1027 av_freep(&s->cbp_table);
1028 av_freep(&s->pred_dir_table);
1030 av_freep(&s->mbskip_table);
1032 av_freep(&s->er.error_status_table);
1033 av_freep(&s->er.er_temp_buffer);
1034 av_freep(&s->mb_index2xy);
1035 av_freep(&s->lambda_table);
1037 av_freep(&s->cplx_tab);
1038 av_freep(&s->bits_tab);
1040 s->linesize = s->uvlinesize = 0;
1043 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1047 if (!s->context_initialized)
1048 return AVERROR(EINVAL);
1050 if (s->slice_context_count > 1) {
1051 for (i = 0; i < s->slice_context_count; i++) {
1052 free_duplicate_context(s->thread_context[i]);
1054 for (i = 1; i < s->slice_context_count; i++) {
1055 av_freep(&s->thread_context[i]);
1058 free_duplicate_context(s);
1060 free_context_frame(s);
1063 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1064 s->picture[i].needs_realloc = 1;
1067 s->last_picture_ptr =
1068 s->next_picture_ptr =
1069 s->current_picture_ptr = NULL;
1072 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1073 s->mb_height = (s->height + 31) / 32 * 2;
1075 s->mb_height = (s->height + 15) / 16;
1077 if ((s->width || s->height) &&
1078 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1081 if ((err = init_context_frame(s)))
1084 memset(s->thread_context, 0, sizeof(s->thread_context));
1085 s->thread_context[0] = s;
1087 if (s->width && s->height) {
1088 int nb_slices = s->slice_context_count;
1089 if (nb_slices > 1) {
1090 for (i = 0; i < nb_slices; i++) {
1092 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1093 if (!s->thread_context[i]) {
1094 err = AVERROR(ENOMEM);
1098 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1100 s->thread_context[i]->start_mb_y =
1101 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1102 s->thread_context[i]->end_mb_y =
1103 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1106 err = init_duplicate_context(s);
1110 s->end_mb_y = s->mb_height;
1112 s->slice_context_count = nb_slices;
1117 ff_mpv_common_end(s);
1121 /* init common structure for both encoder and decoder */
1122 void ff_mpv_common_end(MpegEncContext *s)
1129 if (s->slice_context_count > 1) {
1130 for (i = 0; i < s->slice_context_count; i++) {
1131 free_duplicate_context(s->thread_context[i]);
1133 for (i = 1; i < s->slice_context_count; i++) {
1134 av_freep(&s->thread_context[i]);
1136 s->slice_context_count = 1;
1137 } else free_duplicate_context(s);
1139 av_freep(&s->parse_context.buffer);
1140 s->parse_context.buffer_size = 0;
1142 av_freep(&s->bitstream_buffer);
1143 s->allocated_bitstream_buffer_size = 0;
1146 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1147 ff_free_picture_tables(&s->picture[i]);
1148 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1149 av_frame_free(&s->picture[i].f);
1152 av_freep(&s->picture);
1153 ff_free_picture_tables(&s->last_picture);
1154 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1155 av_frame_free(&s->last_picture.f);
1156 ff_free_picture_tables(&s->current_picture);
1157 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1158 av_frame_free(&s->current_picture.f);
1159 ff_free_picture_tables(&s->next_picture);
1160 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1161 av_frame_free(&s->next_picture.f);
1162 ff_free_picture_tables(&s->new_picture);
1163 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1164 av_frame_free(&s->new_picture.f);
1166 free_context_frame(s);
1168 s->context_initialized = 0;
1169 s->last_picture_ptr =
1170 s->next_picture_ptr =
1171 s->current_picture_ptr = NULL;
1172 s->linesize = s->uvlinesize = 0;
1176 static void gray_frame(AVFrame *frame)
1178 int i, h_chroma_shift, v_chroma_shift;
1180 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1182 for(i=0; i<frame->height; i++)
1183 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1184 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1185 memset(frame->data[1] + frame->linesize[1]*i,
1186 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1187 memset(frame->data[2] + frame->linesize[2]*i,
1188 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1193 * generic function called after decoding
1194 * the header and before a frame is decoded.
1196 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1202 if (!ff_thread_can_start_frame(avctx)) {
1203 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1207 /* mark & release old frames */
1208 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1209 s->last_picture_ptr != s->next_picture_ptr &&
1210 s->last_picture_ptr->f->buf[0]) {
1211 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1214 /* release forgotten pictures */
1215 /* if (MPEG-124 / H.263) */
1216 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1217 if (&s->picture[i] != s->last_picture_ptr &&
1218 &s->picture[i] != s->next_picture_ptr &&
1219 s->picture[i].reference && !s->picture[i].needs_realloc) {
1220 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1224 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1225 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1226 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1228 /* release non reference frames */
1229 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1230 if (!s->picture[i].reference)
1231 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1234 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1235 // we already have an unused image
1236 // (maybe it was set before reading the header)
1237 pic = s->current_picture_ptr;
1239 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1241 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1244 pic = &s->picture[i];
1248 if (!s->droppable) {
1249 if (s->pict_type != AV_PICTURE_TYPE_B)
1253 pic->f->coded_picture_number = s->coded_picture_number++;
1255 if (alloc_picture(s, pic, 0) < 0)
1258 s->current_picture_ptr = pic;
1259 // FIXME use only the vars from current_pic
1260 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1261 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1262 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1263 if (s->picture_structure != PICT_FRAME)
1264 s->current_picture_ptr->f->top_field_first =
1265 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1267 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1268 !s->progressive_sequence;
1269 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1271 s->current_picture_ptr->f->pict_type = s->pict_type;
1272 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1273 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1274 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1276 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1277 s->current_picture_ptr)) < 0)
1280 if (s->pict_type != AV_PICTURE_TYPE_B) {
1281 s->last_picture_ptr = s->next_picture_ptr;
1283 s->next_picture_ptr = s->current_picture_ptr;
1285 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1286 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1287 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1288 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1289 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1290 s->pict_type, s->droppable);
1292 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1293 (s->pict_type != AV_PICTURE_TYPE_I)) {
1294 int h_chroma_shift, v_chroma_shift;
1295 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1296 &h_chroma_shift, &v_chroma_shift);
1297 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1298 av_log(avctx, AV_LOG_DEBUG,
1299 "allocating dummy last picture for B frame\n");
1300 else if (s->pict_type != AV_PICTURE_TYPE_I)
1301 av_log(avctx, AV_LOG_ERROR,
1302 "warning: first frame is no keyframe\n");
1304 /* Allocate a dummy frame */
1305 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1307 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1310 s->last_picture_ptr = &s->picture[i];
1312 s->last_picture_ptr->reference = 3;
1313 s->last_picture_ptr->f->key_frame = 0;
1314 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1316 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1317 s->last_picture_ptr = NULL;
1321 if (!avctx->hwaccel) {
1322 for(i=0; i<avctx->height; i++)
1323 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1324 0x80, avctx->width);
1325 if (s->last_picture_ptr->f->data[2]) {
1326 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1327 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1328 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1329 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1330 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1334 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1335 for(i=0; i<avctx->height; i++)
1336 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1340 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1341 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1343 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1344 s->pict_type == AV_PICTURE_TYPE_B) {
1345 /* Allocate a dummy frame */
1346 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1348 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1351 s->next_picture_ptr = &s->picture[i];
1353 s->next_picture_ptr->reference = 3;
1354 s->next_picture_ptr->f->key_frame = 0;
1355 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1357 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1358 s->next_picture_ptr = NULL;
1361 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1362 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1365 #if 0 // BUFREF-FIXME
1366 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1367 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1369 if (s->last_picture_ptr) {
1370 if (s->last_picture_ptr->f->buf[0] &&
1371 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1372 s->last_picture_ptr)) < 0)
1375 if (s->next_picture_ptr) {
1376 if (s->next_picture_ptr->f->buf[0] &&
1377 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1378 s->next_picture_ptr)) < 0)
1382 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1383 s->last_picture_ptr->f->buf[0]));
1385 if (s->picture_structure!= PICT_FRAME) {
1387 for (i = 0; i < 4; i++) {
1388 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1389 s->current_picture.f->data[i] +=
1390 s->current_picture.f->linesize[i];
1392 s->current_picture.f->linesize[i] *= 2;
1393 s->last_picture.f->linesize[i] *= 2;
1394 s->next_picture.f->linesize[i] *= 2;
1398 /* set dequantizer, we can't do it during init as
1399 * it might change for MPEG-4 and we can't do it in the header
1400 * decode as init is not called for MPEG-4 there yet */
1401 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1402 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1403 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1404 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1405 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1406 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1408 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1409 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1412 if (s->avctx->debug & FF_DEBUG_NOMC) {
1413 gray_frame(s->current_picture_ptr->f);
1419 /* called after a frame has been decoded. */
1420 void ff_mpv_frame_end(MpegEncContext *s)
1424 if (s->current_picture.reference)
1425 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1428 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1430 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1431 p->qscale_table, p->motion_val, &s->low_delay,
1432 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1435 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1437 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1438 int offset = 2*s->mb_stride + 1;
1440 return AVERROR(ENOMEM);
1441 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1442 ref->size -= offset;
1443 ref->data += offset;
1444 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1447 static inline int hpel_motion_lowres(MpegEncContext *s,
1448 uint8_t *dest, uint8_t *src,
1449 int field_based, int field_select,
1450 int src_x, int src_y,
1451 int width, int height, ptrdiff_t stride,
1452 int h_edge_pos, int v_edge_pos,
1453 int w, int h, h264_chroma_mc_func *pix_op,
1454 int motion_x, int motion_y)
1456 const int lowres = s->avctx->lowres;
1457 const int op_index = FFMIN(lowres, 3);
1458 const int s_mask = (2 << lowres) - 1;
1462 if (s->quarter_sample) {
1467 sx = motion_x & s_mask;
1468 sy = motion_y & s_mask;
1469 src_x += motion_x >> lowres + 1;
1470 src_y += motion_y >> lowres + 1;
1472 src += src_y * stride + src_x;
1474 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1475 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1476 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1477 s->linesize, s->linesize,
1478 w + 1, (h + 1) << field_based,
1479 src_x, src_y << field_based,
1480 h_edge_pos, v_edge_pos);
1481 src = s->sc.edge_emu_buffer;
1485 sx = (sx << 2) >> lowres;
1486 sy = (sy << 2) >> lowres;
1489 pix_op[op_index](dest, src, stride, h, sx, sy);
1493 /* apply one mpeg motion vector to the three components */
1494 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1501 uint8_t **ref_picture,
1502 h264_chroma_mc_func *pix_op,
1503 int motion_x, int motion_y,
1506 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1507 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1508 ptrdiff_t uvlinesize, linesize;
1509 const int lowres = s->avctx->lowres;
1510 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1511 const int block_s = 8>>lowres;
1512 const int s_mask = (2 << lowres) - 1;
1513 const int h_edge_pos = s->h_edge_pos >> lowres;
1514 const int v_edge_pos = s->v_edge_pos >> lowres;
1515 linesize = s->current_picture.f->linesize[0] << field_based;
1516 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1518 // FIXME obviously not perfect but qpel will not work in lowres anyway
1519 if (s->quarter_sample) {
1525 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1528 sx = motion_x & s_mask;
1529 sy = motion_y & s_mask;
1530 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1531 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1533 if (s->out_format == FMT_H263) {
1534 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1535 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1536 uvsrc_x = src_x >> 1;
1537 uvsrc_y = src_y >> 1;
1538 } else if (s->out_format == FMT_H261) {
1539 // even chroma mv's are full pel in H261
1542 uvsx = (2 * mx) & s_mask;
1543 uvsy = (2 * my) & s_mask;
1544 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1545 uvsrc_y = mb_y * block_s + (my >> lowres);
1547 if(s->chroma_y_shift){
1552 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1553 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1555 if(s->chroma_x_shift){
1559 uvsy = motion_y & s_mask;
1561 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1564 uvsx = motion_x & s_mask;
1565 uvsy = motion_y & s_mask;
1572 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1573 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1574 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1576 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1577 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1578 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1579 linesize >> field_based, linesize >> field_based,
1580 17, 17 + field_based,
1581 src_x, src_y << field_based, h_edge_pos,
1583 ptr_y = s->sc.edge_emu_buffer;
1584 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1585 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1586 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1587 if (s->workaround_bugs & FF_BUG_IEDGE)
1588 vbuf -= s->uvlinesize;
1589 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1590 uvlinesize >> field_based, uvlinesize >> field_based,
1592 uvsrc_x, uvsrc_y << field_based,
1593 h_edge_pos >> 1, v_edge_pos >> 1);
1594 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1595 uvlinesize >> field_based,uvlinesize >> field_based,
1597 uvsrc_x, uvsrc_y << field_based,
1598 h_edge_pos >> 1, v_edge_pos >> 1);
1604 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1606 dest_y += s->linesize;
1607 dest_cb += s->uvlinesize;
1608 dest_cr += s->uvlinesize;
1612 ptr_y += s->linesize;
1613 ptr_cb += s->uvlinesize;
1614 ptr_cr += s->uvlinesize;
1617 sx = (sx << 2) >> lowres;
1618 sy = (sy << 2) >> lowres;
1619 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1621 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1622 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1623 uvsx = (uvsx << 2) >> lowres;
1624 uvsy = (uvsy << 2) >> lowres;
1626 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1627 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1630 // FIXME h261 lowres loop filter
1633 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1634 uint8_t *dest_cb, uint8_t *dest_cr,
1635 uint8_t **ref_picture,
1636 h264_chroma_mc_func * pix_op,
1639 const int lowres = s->avctx->lowres;
1640 const int op_index = FFMIN(lowres, 3);
1641 const int block_s = 8 >> lowres;
1642 const int s_mask = (2 << lowres) - 1;
1643 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1644 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1645 int emu = 0, src_x, src_y, sx, sy;
1649 if (s->quarter_sample) {
1654 /* In case of 8X8, we construct a single chroma motion vector
1655 with a special rounding */
1656 mx = ff_h263_round_chroma(mx);
1657 my = ff_h263_round_chroma(my);
1661 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1662 src_y = s->mb_y * block_s + (my >> lowres + 1);
1664 offset = src_y * s->uvlinesize + src_x;
1665 ptr = ref_picture[1] + offset;
1666 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1667 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1668 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1669 s->uvlinesize, s->uvlinesize,
1671 src_x, src_y, h_edge_pos, v_edge_pos);
1672 ptr = s->sc.edge_emu_buffer;
1675 sx = (sx << 2) >> lowres;
1676 sy = (sy << 2) >> lowres;
1677 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1679 ptr = ref_picture[2] + offset;
1681 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1682 s->uvlinesize, s->uvlinesize,
1684 src_x, src_y, h_edge_pos, v_edge_pos);
1685 ptr = s->sc.edge_emu_buffer;
1687 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1691 * motion compensation of a single macroblock
1693 * @param dest_y luma destination pointer
1694 * @param dest_cb chroma cb/u destination pointer
1695 * @param dest_cr chroma cr/v destination pointer
1696 * @param dir direction (0->forward, 1->backward)
1697 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1698 * @param pix_op halfpel motion compensation function (average or put normally)
1699 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1701 static inline void MPV_motion_lowres(MpegEncContext *s,
1702 uint8_t *dest_y, uint8_t *dest_cb,
1704 int dir, uint8_t **ref_picture,
1705 h264_chroma_mc_func *pix_op)
1709 const int lowres = s->avctx->lowres;
1710 const int block_s = 8 >>lowres;
1715 switch (s->mv_type) {
1717 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1719 ref_picture, pix_op,
1720 s->mv[dir][0][0], s->mv[dir][0][1],
1726 for (i = 0; i < 4; i++) {
1727 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1728 s->linesize) * block_s,
1729 ref_picture[0], 0, 0,
1730 (2 * mb_x + (i & 1)) * block_s,
1731 (2 * mb_y + (i >> 1)) * block_s,
1732 s->width, s->height, s->linesize,
1733 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1734 block_s, block_s, pix_op,
1735 s->mv[dir][i][0], s->mv[dir][i][1]);
1737 mx += s->mv[dir][i][0];
1738 my += s->mv[dir][i][1];
1741 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1742 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1746 if (s->picture_structure == PICT_FRAME) {
1748 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1749 1, 0, s->field_select[dir][0],
1750 ref_picture, pix_op,
1751 s->mv[dir][0][0], s->mv[dir][0][1],
1754 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1755 1, 1, s->field_select[dir][1],
1756 ref_picture, pix_op,
1757 s->mv[dir][1][0], s->mv[dir][1][1],
1760 if (s->picture_structure != s->field_select[dir][0] + 1 &&
1761 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1762 ref_picture = s->current_picture_ptr->f->data;
1765 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1766 0, 0, s->field_select[dir][0],
1767 ref_picture, pix_op,
1769 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1773 for (i = 0; i < 2; i++) {
1774 uint8_t **ref2picture;
1776 if (s->picture_structure == s->field_select[dir][i] + 1 ||
1777 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1778 ref2picture = ref_picture;
1780 ref2picture = s->current_picture_ptr->f->data;
1783 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1784 0, 0, s->field_select[dir][i],
1785 ref2picture, pix_op,
1786 s->mv[dir][i][0], s->mv[dir][i][1] +
1787 2 * block_s * i, block_s, mb_y >> 1);
1789 dest_y += 2 * block_s * s->linesize;
1790 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1791 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1795 if (s->picture_structure == PICT_FRAME) {
1796 for (i = 0; i < 2; i++) {
1798 for (j = 0; j < 2; j++) {
1799 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1801 ref_picture, pix_op,
1802 s->mv[dir][2 * i + j][0],
1803 s->mv[dir][2 * i + j][1],
1806 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1809 for (i = 0; i < 2; i++) {
1810 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1811 0, 0, s->picture_structure != i + 1,
1812 ref_picture, pix_op,
1813 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1814 2 * block_s, mb_y >> 1);
1816 // after put we make avg of the same block
1817 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1819 // opposite parity is always in the same
1820 // frame if this is second field
1821 if (!s->first_field) {
1822 ref_picture = s->current_picture_ptr->f->data;
1833 * find the lowest MB row referenced in the MVs
1835 static int lowest_referenced_row(MpegEncContext *s, int dir)
1837 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1838 int my, off, i, mvs;
1840 if (s->picture_structure != PICT_FRAME || s->mcsel)
1843 switch (s->mv_type) {
1857 for (i = 0; i < mvs; i++) {
1858 my = s->mv[dir][i][1];
1859 my_max = FFMAX(my_max, my);
1860 my_min = FFMIN(my_min, my);
1863 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1865 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1867 return s->mb_height-1;
1870 /* put block[] to dest[] */
1871 static inline void put_dct(MpegEncContext *s,
1872 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1874 s->dct_unquantize_intra(s, block, i, qscale);
1875 s->idsp.idct_put(dest, line_size, block);
1878 /* add block[] to dest[] */
1879 static inline void add_dct(MpegEncContext *s,
1880 int16_t *block, int i, uint8_t *dest, int line_size)
1882 if (s->block_last_index[i] >= 0) {
1883 s->idsp.idct_add(dest, line_size, block);
1887 static inline void add_dequant_dct(MpegEncContext *s,
1888 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1890 if (s->block_last_index[i] >= 0) {
1891 s->dct_unquantize_inter(s, block, i, qscale);
1893 s->idsp.idct_add(dest, line_size, block);
1898 * Clean dc, ac, coded_block for the current non-intra MB.
1900 void ff_clean_intra_table_entries(MpegEncContext *s)
1902 int wrap = s->b8_stride;
1903 int xy = s->block_index[0];
1906 s->dc_val[0][xy + 1 ] =
1907 s->dc_val[0][xy + wrap] =
1908 s->dc_val[0][xy + 1 + wrap] = 1024;
1910 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1911 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1912 if (s->msmpeg4_version>=3) {
1913 s->coded_block[xy ] =
1914 s->coded_block[xy + 1 ] =
1915 s->coded_block[xy + wrap] =
1916 s->coded_block[xy + 1 + wrap] = 0;
1919 wrap = s->mb_stride;
1920 xy = s->mb_x + s->mb_y * wrap;
1922 s->dc_val[2][xy] = 1024;
1924 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1925 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1927 s->mbintra_table[xy]= 0;
1930 /* generic function called after a macroblock has been parsed by the
1931 decoder or after it has been encoded by the encoder.
1933 Important variables used:
1934 s->mb_intra : true if intra macroblock
1935 s->mv_dir : motion vector direction
1936 s->mv_type : motion vector type
1937 s->mv : motion vector
1938 s->interlaced_dct : true if interlaced dct used (mpeg2)
1940 static av_always_inline
1941 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1942 int lowres_flag, int is_mpeg12)
1944 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1947 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1948 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1952 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1953 /* print DCT coefficients */
1955 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1957 for(j=0; j<64; j++){
1958 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1959 block[i][s->idsp.idct_permutation[j]]);
1961 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1965 s->current_picture.qscale_table[mb_xy] = s->qscale;
1967 /* update DC predictors for P macroblocks */
1969 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1970 if(s->mbintra_table[mb_xy])
1971 ff_clean_intra_table_entries(s);
1975 s->last_dc[2] = 128 << s->intra_dc_precision;
1978 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1979 s->mbintra_table[mb_xy]=1;
1981 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1982 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1983 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1984 uint8_t *dest_y, *dest_cb, *dest_cr;
1985 int dct_linesize, dct_offset;
1986 op_pixels_func (*op_pix)[4];
1987 qpel_mc_func (*op_qpix)[16];
1988 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1989 const int uvlinesize = s->current_picture.f->linesize[1];
1990 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1991 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1993 /* avoid copy if macroblock skipped in last frame too */
1994 /* skip only during decoding as we might trash the buffers during encoding a bit */
1996 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1998 if (s->mb_skipped) {
2000 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2002 } else if(!s->current_picture.reference) {
2005 *mbskip_ptr = 0; /* not skipped */
2009 dct_linesize = linesize << s->interlaced_dct;
2010 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2014 dest_cb= s->dest[1];
2015 dest_cr= s->dest[2];
2017 dest_y = s->sc.b_scratchpad;
2018 dest_cb= s->sc.b_scratchpad+16*linesize;
2019 dest_cr= s->sc.b_scratchpad+32*linesize;
2023 /* motion handling */
2024 /* decoding or more than one mb_type (MC was already done otherwise) */
2027 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2028 if (s->mv_dir & MV_DIR_FORWARD) {
2029 ff_thread_await_progress(&s->last_picture_ptr->tf,
2030 lowest_referenced_row(s, 0),
2033 if (s->mv_dir & MV_DIR_BACKWARD) {
2034 ff_thread_await_progress(&s->next_picture_ptr->tf,
2035 lowest_referenced_row(s, 1),
2041 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2043 if (s->mv_dir & MV_DIR_FORWARD) {
2044 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2045 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2047 if (s->mv_dir & MV_DIR_BACKWARD) {
2048 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2051 op_qpix = s->me.qpel_put;
2052 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2053 op_pix = s->hdsp.put_pixels_tab;
2055 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2057 if (s->mv_dir & MV_DIR_FORWARD) {
2058 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2059 op_pix = s->hdsp.avg_pixels_tab;
2060 op_qpix= s->me.qpel_avg;
2062 if (s->mv_dir & MV_DIR_BACKWARD) {
2063 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2068 /* skip dequant / idct if we are really late ;) */
2069 if(s->avctx->skip_idct){
2070 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2071 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2072 || s->avctx->skip_idct >= AVDISCARD_ALL)
2076 /* add dct residue */
2077 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2078 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2079 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2080 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2081 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2082 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2084 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2085 if (s->chroma_y_shift){
2086 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2087 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2091 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2092 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2093 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2094 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2097 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2098 add_dct(s, block[0], 0, dest_y , dct_linesize);
2099 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2100 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2101 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2103 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2104 if(s->chroma_y_shift){//Chroma420
2105 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2106 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2109 dct_linesize = uvlinesize << s->interlaced_dct;
2110 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2112 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2113 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2114 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2115 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2116 if(!s->chroma_x_shift){//Chroma444
2117 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2118 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2119 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2120 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2125 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2126 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2129 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2130 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2131 if (s->avctx->bits_per_raw_sample > 8){
2132 const int act_block_size = block_size * 2;
2133 s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
2134 s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2135 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
2136 s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2138 dct_linesize = uvlinesize << s->interlaced_dct;
2139 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2141 s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
2142 s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
2143 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2144 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2145 if(!s->chroma_x_shift){//Chroma444
2146 s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
2147 s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
2148 s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2149 s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2152 /* dct only in intra block */
2153 else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2154 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2155 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2156 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2157 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2159 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2160 if(s->chroma_y_shift){
2161 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2162 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2166 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2167 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2168 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2169 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2173 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2174 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2175 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2176 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2178 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2179 if(s->chroma_y_shift){
2180 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2181 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2184 dct_linesize = uvlinesize << s->interlaced_dct;
2185 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2187 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2188 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2189 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2190 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2191 if(!s->chroma_x_shift){//Chroma444
2192 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2193 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2194 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2195 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2203 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2204 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2205 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2206 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2212 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2215 if(s->out_format == FMT_MPEG1) {
2216 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2217 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2220 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2221 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2224 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2226 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2227 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2228 s->first_field, s->low_delay);
2231 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2232 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2233 const int uvlinesize = s->current_picture.f->linesize[1];
2234 const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2235 const int height_of_mb = 4 - s->avctx->lowres;
2237 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2238 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2239 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2240 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2241 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2242 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;
2243 //block_index is not used by mpeg2, so it is not affected by chroma_format
2245 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
2246 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2247 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2249 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2251 if(s->picture_structure==PICT_FRAME){
2252 s->dest[0] += s->mb_y * linesize << height_of_mb;
2253 s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2254 s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2256 s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
2257 s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2258 s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2259 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2264 void ff_mpeg_flush(AVCodecContext *avctx){
2266 MpegEncContext *s = avctx->priv_data;
2268 if (!s || !s->picture)
2271 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2272 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2273 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2275 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2276 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2277 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2279 s->mb_x= s->mb_y= 0;
2282 s->parse_context.state= -1;
2283 s->parse_context.frame_start_found= 0;
2284 s->parse_context.overread= 0;
2285 s->parse_context.overread_index= 0;
2286 s->parse_context.index= 0;
2287 s->parse_context.last_index= 0;
2288 s->bitstream_buffer_size=0;
2293 * set qscale and update qscale dependent variables.
2295 void ff_set_qscale(MpegEncContext * s, int qscale)
2299 else if (qscale > 31)
2303 s->chroma_qscale= s->chroma_qscale_table[qscale];
2305 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2306 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2309 void ff_mpv_report_decode_progress(MpegEncContext *s)
2311 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2312 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);