2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/motion_vector.h"
35 #include "libavutil/timer.h"
38 #include "h264chroma.h"
43 #include "mpegutils.h"
44 #include "mpegvideo.h"
45 #include "mpegvideodata.h"
53 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
54 int16_t *block, int n, int qscale)
56 int i, level, nCoeffs;
57 const uint16_t *quant_matrix;
59 nCoeffs= s->block_last_index[n];
61 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
62 /* XXX: only MPEG-1 */
63 quant_matrix = s->intra_matrix;
64 for(i=1;i<=nCoeffs;i++) {
65 int j= s->intra_scantable.permutated[i];
70 level = (int)(level * qscale * quant_matrix[j]) >> 3;
71 level = (level - 1) | 1;
74 level = (int)(level * qscale * quant_matrix[j]) >> 3;
75 level = (level - 1) | 1;
82 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
83 int16_t *block, int n, int qscale)
85 int i, level, nCoeffs;
86 const uint16_t *quant_matrix;
88 nCoeffs= s->block_last_index[n];
90 quant_matrix = s->inter_matrix;
91 for(i=0; i<=nCoeffs; i++) {
92 int j= s->intra_scantable.permutated[i];
97 level = (((level << 1) + 1) * qscale *
98 ((int) (quant_matrix[j]))) >> 4;
99 level = (level - 1) | 1;
102 level = (((level << 1) + 1) * qscale *
103 ((int) (quant_matrix[j]))) >> 4;
104 level = (level - 1) | 1;
111 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
112 int16_t *block, int n, int qscale)
114 int i, level, nCoeffs;
115 const uint16_t *quant_matrix;
117 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
120 if(s->alternate_scan) nCoeffs= 63;
121 else nCoeffs= s->block_last_index[n];
123 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
124 quant_matrix = s->intra_matrix;
125 for(i=1;i<=nCoeffs;i++) {
126 int j= s->intra_scantable.permutated[i];
131 level = (int)(level * qscale * quant_matrix[j]) >> 4;
134 level = (int)(level * qscale * quant_matrix[j]) >> 4;
141 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
142 int16_t *block, int n, int qscale)
144 int i, level, nCoeffs;
145 const uint16_t *quant_matrix;
148 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
151 if(s->alternate_scan) nCoeffs= 63;
152 else nCoeffs= s->block_last_index[n];
154 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
156 quant_matrix = s->intra_matrix;
157 for(i=1;i<=nCoeffs;i++) {
158 int j= s->intra_scantable.permutated[i];
163 level = (int)(level * qscale * quant_matrix[j]) >> 4;
166 level = (int)(level * qscale * quant_matrix[j]) >> 4;
175 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
176 int16_t *block, int n, int qscale)
178 int i, level, nCoeffs;
179 const uint16_t *quant_matrix;
182 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
185 if(s->alternate_scan) nCoeffs= 63;
186 else nCoeffs= s->block_last_index[n];
188 quant_matrix = s->inter_matrix;
189 for(i=0; i<=nCoeffs; i++) {
190 int j= s->intra_scantable.permutated[i];
195 level = (((level << 1) + 1) * qscale *
196 ((int) (quant_matrix[j]))) >> 5;
199 level = (((level << 1) + 1) * qscale *
200 ((int) (quant_matrix[j]))) >> 5;
209 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
210 int16_t *block, int n, int qscale)
212 int i, level, qmul, qadd;
215 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
220 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
221 qadd = (qscale - 1) | 1;
228 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
230 for(i=1; i<=nCoeffs; i++) {
234 level = level * qmul - qadd;
236 level = level * qmul + qadd;
243 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
244 int16_t *block, int n, int qscale)
246 int i, level, qmul, qadd;
249 av_assert2(s->block_last_index[n]>=0);
251 qadd = (qscale - 1) | 1;
254 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
256 for(i=0; i<=nCoeffs; i++) {
260 level = level * qmul - qadd;
262 level = level * qmul + qadd;
270 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
273 memset(dst + h*linesize, 128, 16);
276 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
279 memset(dst + h*linesize, 128, 8);
282 /* init common dct for both encoder and decoder */
283 static av_cold int dct_init(MpegEncContext *s)
285 ff_blockdsp_init(&s->bdsp, s->avctx);
286 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
287 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
288 ff_mpegvideodsp_init(&s->mdsp);
289 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
291 if (s->avctx->debug & FF_DEBUG_NOMC) {
293 for (i=0; i<4; i++) {
294 s->hdsp.avg_pixels_tab[0][i] = gray16;
295 s->hdsp.put_pixels_tab[0][i] = gray16;
296 s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
298 s->hdsp.avg_pixels_tab[1][i] = gray8;
299 s->hdsp.put_pixels_tab[1][i] = gray8;
300 s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
304 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
305 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
306 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
307 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
308 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
309 if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
310 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
311 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
313 if (HAVE_INTRINSICS_NEON)
314 ff_mpv_common_init_neon(s);
317 ff_mpv_common_init_axp(s);
319 ff_mpv_common_init_arm(s);
321 ff_mpv_common_init_ppc(s);
323 ff_mpv_common_init_x86(s);
325 ff_mpv_common_init_mips(s);
330 av_cold void ff_mpv_idct_init(MpegEncContext *s)
332 ff_idctdsp_init(&s->idsp, s->avctx);
334 /* load & permutate scantables
335 * note: only wmv uses different ones
337 if (s->alternate_scan) {
338 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
339 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
341 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
342 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
344 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
345 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
348 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
350 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
351 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
352 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
353 &s->linesize, &s->uvlinesize);
356 static int init_duplicate_context(MpegEncContext *s)
358 int y_size = s->b8_stride * (2 * s->mb_height + 1);
359 int c_size = s->mb_stride * (s->mb_height + 1);
360 int yc_size = y_size + 2 * c_size;
363 if (s->mb_height & 1)
364 yc_size += 2*s->b8_stride + 2*s->mb_stride;
366 s->sc.edge_emu_buffer =
369 s->sc.rd_scratchpad =
371 s->sc.obmc_scratchpad = NULL;
374 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
375 ME_MAP_SIZE * sizeof(uint32_t), fail)
376 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
377 ME_MAP_SIZE * sizeof(uint32_t), fail)
378 if (s->noise_reduction) {
379 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
380 2 * 64 * sizeof(int), fail)
383 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
384 s->block = s->blocks[0];
386 for (i = 0; i < 12; i++) {
387 s->pblocks[i] = &s->block[i];
389 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
391 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
394 if (s->out_format == FMT_H263) {
396 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
397 yc_size * sizeof(int16_t) * 16, fail);
398 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
399 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
400 s->ac_val[2] = s->ac_val[1] + c_size;
405 return -1; // free() through ff_mpv_common_end()
408 static void free_duplicate_context(MpegEncContext *s)
413 av_freep(&s->sc.edge_emu_buffer);
414 av_freep(&s->me.scratchpad);
416 s->sc.rd_scratchpad =
418 s->sc.obmc_scratchpad = NULL;
420 av_freep(&s->dct_error_sum);
421 av_freep(&s->me.map);
422 av_freep(&s->me.score_map);
423 av_freep(&s->blocks);
424 av_freep(&s->ac_val_base);
428 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
430 #define COPY(a) bak->a = src->a
431 COPY(sc.edge_emu_buffer);
434 COPY(sc.rd_scratchpad);
435 COPY(sc.b_scratchpad);
436 COPY(sc.obmc_scratchpad);
443 COPY(me.map_generation);
455 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
459 // FIXME copy only needed parts
461 backup_duplicate_context(&bak, dst);
462 memcpy(dst, src, sizeof(MpegEncContext));
463 backup_duplicate_context(dst, &bak);
464 for (i = 0; i < 12; i++) {
465 dst->pblocks[i] = &dst->block[i];
467 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
469 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
471 if (!dst->sc.edge_emu_buffer &&
472 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
473 &dst->sc, dst->linesize)) < 0) {
474 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
475 "scratch buffers.\n");
478 // STOP_TIMER("update_duplicate_context")
479 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
483 int ff_mpeg_update_thread_context(AVCodecContext *dst,
484 const AVCodecContext *src)
487 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
494 // FIXME can parameters change on I-frames?
495 // in that case dst may need a reinit
496 if (!s->context_initialized) {
498 memcpy(s, s1, sizeof(MpegEncContext));
501 s->bitstream_buffer = NULL;
502 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
504 if (s1->context_initialized){
505 // s->picture_range_start += MAX_PICTURE_COUNT;
506 // s->picture_range_end += MAX_PICTURE_COUNT;
508 if((err = ff_mpv_common_init(s)) < 0){
509 memset(s, 0, sizeof(MpegEncContext));
516 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
517 s->context_reinit = 0;
518 s->height = s1->height;
519 s->width = s1->width;
520 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
524 s->avctx->coded_height = s1->avctx->coded_height;
525 s->avctx->coded_width = s1->avctx->coded_width;
526 s->avctx->width = s1->avctx->width;
527 s->avctx->height = s1->avctx->height;
529 s->coded_picture_number = s1->coded_picture_number;
530 s->picture_number = s1->picture_number;
532 av_assert0(!s->picture || s->picture != s1->picture);
534 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
535 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
536 if (s1->picture && s1->picture[i].f->buf[0] &&
537 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
541 #define UPDATE_PICTURE(pic)\
543 ff_mpeg_unref_picture(s->avctx, &s->pic);\
544 if (s1->pic.f && s1->pic.f->buf[0])\
545 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
547 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
552 UPDATE_PICTURE(current_picture);
553 UPDATE_PICTURE(last_picture);
554 UPDATE_PICTURE(next_picture);
556 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
557 ((pic && pic >= old_ctx->picture && \
558 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
559 &new_ctx->picture[pic - old_ctx->picture] : NULL)
561 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
562 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
563 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
565 // Error/bug resilience
566 s->next_p_frame_damaged = s1->next_p_frame_damaged;
567 s->workaround_bugs = s1->workaround_bugs;
568 s->padding_bug_score = s1->padding_bug_score;
570 // MPEG-4 timing info
571 memcpy(&s->last_time_base, &s1->last_time_base,
572 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
573 (char *) &s1->last_time_base);
576 s->max_b_frames = s1->max_b_frames;
577 s->low_delay = s1->low_delay;
578 s->droppable = s1->droppable;
580 // DivX handling (doesn't work)
581 s->divx_packed = s1->divx_packed;
583 if (s1->bitstream_buffer) {
584 if (s1->bitstream_buffer_size +
585 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
586 av_fast_malloc(&s->bitstream_buffer,
587 &s->allocated_bitstream_buffer_size,
588 s1->allocated_bitstream_buffer_size);
589 if (!s->bitstream_buffer) {
590 s->bitstream_buffer_size = 0;
591 return AVERROR(ENOMEM);
594 s->bitstream_buffer_size = s1->bitstream_buffer_size;
595 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
596 s1->bitstream_buffer_size);
597 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
598 AV_INPUT_BUFFER_PADDING_SIZE);
601 // linesize-dependent scratch buffer allocation
602 if (!s->sc.edge_emu_buffer)
604 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
605 &s->sc, s1->linesize) < 0) {
606 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
607 "scratch buffers.\n");
608 return AVERROR(ENOMEM);
611 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
612 "be allocated due to unknown size.\n");
615 // MPEG-2/interlacing info
616 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
617 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
619 if (!s1->first_field) {
620 s->last_pict_type = s1->pict_type;
621 if (s1->current_picture_ptr)
622 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
629 * Set the given MpegEncContext to common defaults
630 * (same for encoding and decoding).
631 * The changed fields will not depend upon the
632 * prior state of the MpegEncContext.
634 void ff_mpv_common_defaults(MpegEncContext *s)
636 s->y_dc_scale_table =
637 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
638 s->chroma_qscale_table = ff_default_chroma_qscale_table;
639 s->progressive_frame = 1;
640 s->progressive_sequence = 1;
641 s->picture_structure = PICT_FRAME;
643 s->coded_picture_number = 0;
644 s->picture_number = 0;
649 s->slice_context_count = 1;
653 * Set the given MpegEncContext to defaults for decoding.
654 * the changed fields will not depend upon
655 * the prior state of the MpegEncContext.
657 void ff_mpv_decode_defaults(MpegEncContext *s)
659 ff_mpv_common_defaults(s);
662 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
665 s->width = avctx->coded_width;
666 s->height = avctx->coded_height;
667 s->codec_id = avctx->codec->id;
668 s->workaround_bugs = avctx->workaround_bugs;
670 /* convert fourcc to upper case */
671 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
675 * Initialize and allocates MpegEncContext fields dependent on the resolution.
677 static int init_context_frame(MpegEncContext *s)
679 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
681 s->mb_width = (s->width + 15) / 16;
682 s->mb_stride = s->mb_width + 1;
683 s->b8_stride = s->mb_width * 2 + 1;
684 mb_array_size = s->mb_height * s->mb_stride;
685 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
687 /* set default edge pos, will be overridden
688 * in decode_header if needed */
689 s->h_edge_pos = s->mb_width * 16;
690 s->v_edge_pos = s->mb_height * 16;
692 s->mb_num = s->mb_width * s->mb_height;
697 s->block_wrap[3] = s->b8_stride;
699 s->block_wrap[5] = s->mb_stride;
701 y_size = s->b8_stride * (2 * s->mb_height + 1);
702 c_size = s->mb_stride * (s->mb_height + 1);
703 yc_size = y_size + 2 * c_size;
705 if (s->mb_height & 1)
706 yc_size += 2*s->b8_stride + 2*s->mb_stride;
708 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
709 fail); // error resilience code looks cleaner with this
710 for (y = 0; y < s->mb_height; y++)
711 for (x = 0; x < s->mb_width; x++)
712 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
714 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
717 /* Allocate MV tables */
718 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
719 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
720 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
721 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
722 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
723 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
724 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
725 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
726 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
727 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
728 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
729 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
731 /* Allocate MB type table */
732 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
734 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
736 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
737 mb_array_size * sizeof(float), fail);
738 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
739 mb_array_size * sizeof(float), fail);
743 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
744 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
745 /* interlaced direct mode decoding tables */
746 for (i = 0; i < 2; i++) {
748 for (j = 0; j < 2; j++) {
749 for (k = 0; k < 2; k++) {
750 FF_ALLOCZ_OR_GOTO(s->avctx,
751 s->b_field_mv_table_base[i][j][k],
752 mv_table_size * 2 * sizeof(int16_t),
754 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
757 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
758 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
759 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
761 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
764 if (s->out_format == FMT_H263) {
766 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
767 s->coded_block = s->coded_block_base + s->b8_stride + 1;
769 /* cbp, ac_pred, pred_dir */
770 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
771 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
774 if (s->h263_pred || s->h263_plus || !s->encoding) {
776 // MN: we need these for error resilience of intra-frames
777 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
778 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
779 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
780 s->dc_val[2] = s->dc_val[1] + c_size;
781 for (i = 0; i < yc_size; i++)
782 s->dc_val_base[i] = 1024;
785 /* which mb is an intra block */
786 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
787 memset(s->mbintra_table, 1, mb_array_size);
789 /* init macroblock skip table */
790 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
791 // Note the + 1 is for a quicker MPEG-4 slice_end detection
793 return ff_mpeg_er_init(s);
795 return AVERROR(ENOMEM);
798 static void clear_context(MpegEncContext *s)
802 memset(&s->next_picture, 0, sizeof(s->next_picture));
803 memset(&s->last_picture, 0, sizeof(s->last_picture));
804 memset(&s->current_picture, 0, sizeof(s->current_picture));
805 memset(&s->new_picture, 0, sizeof(s->new_picture));
807 memset(s->thread_context, 0, sizeof(s->thread_context));
810 s->me.score_map = NULL;
811 s->dct_error_sum = NULL;
814 memset(s->pblocks, 0, sizeof(s->pblocks));
815 s->ac_val_base = NULL;
819 s->sc.edge_emu_buffer = NULL;
820 s->me.scratchpad = NULL;
822 s->sc.rd_scratchpad =
824 s->sc.obmc_scratchpad = NULL;
827 s->bitstream_buffer = NULL;
828 s->allocated_bitstream_buffer_size = 0;
831 s->p_mv_table_base = NULL;
832 s->b_forw_mv_table_base = NULL;
833 s->b_back_mv_table_base = NULL;
834 s->b_bidir_forw_mv_table_base = NULL;
835 s->b_bidir_back_mv_table_base = NULL;
836 s->b_direct_mv_table_base = NULL;
837 s->p_mv_table = NULL;
838 s->b_forw_mv_table = NULL;
839 s->b_back_mv_table = NULL;
840 s->b_bidir_forw_mv_table = NULL;
841 s->b_bidir_back_mv_table = NULL;
842 s->b_direct_mv_table = NULL;
843 for (i = 0; i < 2; i++) {
844 for (j = 0; j < 2; j++) {
845 for (k = 0; k < 2; k++) {
846 s->b_field_mv_table_base[i][j][k] = NULL;
847 s->b_field_mv_table[i][j][k] = NULL;
849 s->b_field_select_table[i][j] = NULL;
850 s->p_field_mv_table_base[i][j] = NULL;
851 s->p_field_mv_table[i][j] = NULL;
853 s->p_field_select_table[i] = NULL;
856 s->dc_val_base = NULL;
857 s->coded_block_base = NULL;
858 s->mbintra_table = NULL;
860 s->pred_dir_table = NULL;
862 s->mbskip_table = NULL;
864 s->er.error_status_table = NULL;
865 s->er.er_temp_buffer = NULL;
866 s->mb_index2xy = NULL;
867 s->lambda_table = NULL;
874 * init common structure for both encoder and decoder.
875 * this assumes that some variables like width/height are already set
877 av_cold int ff_mpv_common_init(MpegEncContext *s)
880 int nb_slices = (HAVE_THREADS &&
881 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
882 s->avctx->thread_count : 1;
886 if (s->encoding && s->avctx->slices)
887 nb_slices = s->avctx->slices;
889 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
890 s->mb_height = (s->height + 31) / 32 * 2;
892 s->mb_height = (s->height + 15) / 16;
894 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
895 av_log(s->avctx, AV_LOG_ERROR,
896 "decoding to AV_PIX_FMT_NONE is not supported.\n");
900 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
903 max_slices = FFMIN(MAX_THREADS, s->mb_height);
905 max_slices = MAX_THREADS;
906 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
907 " reducing to %d\n", nb_slices, max_slices);
908 nb_slices = max_slices;
911 if ((s->width || s->height) &&
912 av_image_check_size(s->width, s->height, 0, s->avctx))
917 /* set chroma shifts */
918 ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
924 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
925 MAX_PICTURE_COUNT * sizeof(Picture), fail);
926 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
927 s->picture[i].f = av_frame_alloc();
928 if (!s->picture[i].f)
931 s->next_picture.f = av_frame_alloc();
932 if (!s->next_picture.f)
934 s->last_picture.f = av_frame_alloc();
935 if (!s->last_picture.f)
937 s->current_picture.f = av_frame_alloc();
938 if (!s->current_picture.f)
940 s->new_picture.f = av_frame_alloc();
941 if (!s->new_picture.f)
944 if (init_context_frame(s))
947 s->parse_context.state = -1;
949 s->context_initialized = 1;
950 memset(s->thread_context, 0, sizeof(s->thread_context));
951 s->thread_context[0] = s;
953 // if (s->width && s->height) {
955 for (i = 0; i < nb_slices; i++) {
957 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
958 if (!s->thread_context[i])
961 if (init_duplicate_context(s->thread_context[i]) < 0)
963 s->thread_context[i]->start_mb_y =
964 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
965 s->thread_context[i]->end_mb_y =
966 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
969 if (init_duplicate_context(s) < 0)
972 s->end_mb_y = s->mb_height;
974 s->slice_context_count = nb_slices;
979 ff_mpv_common_end(s);
984 * Frees and resets MpegEncContext fields depending on the resolution.
985 * Is used during resolution changes to avoid a full reinitialization of the
988 static void free_context_frame(MpegEncContext *s)
992 av_freep(&s->mb_type);
993 av_freep(&s->p_mv_table_base);
994 av_freep(&s->b_forw_mv_table_base);
995 av_freep(&s->b_back_mv_table_base);
996 av_freep(&s->b_bidir_forw_mv_table_base);
997 av_freep(&s->b_bidir_back_mv_table_base);
998 av_freep(&s->b_direct_mv_table_base);
999 s->p_mv_table = NULL;
1000 s->b_forw_mv_table = NULL;
1001 s->b_back_mv_table = NULL;
1002 s->b_bidir_forw_mv_table = NULL;
1003 s->b_bidir_back_mv_table = NULL;
1004 s->b_direct_mv_table = NULL;
1005 for (i = 0; i < 2; i++) {
1006 for (j = 0; j < 2; j++) {
1007 for (k = 0; k < 2; k++) {
1008 av_freep(&s->b_field_mv_table_base[i][j][k]);
1009 s->b_field_mv_table[i][j][k] = NULL;
1011 av_freep(&s->b_field_select_table[i][j]);
1012 av_freep(&s->p_field_mv_table_base[i][j]);
1013 s->p_field_mv_table[i][j] = NULL;
1015 av_freep(&s->p_field_select_table[i]);
1018 av_freep(&s->dc_val_base);
1019 av_freep(&s->coded_block_base);
1020 av_freep(&s->mbintra_table);
1021 av_freep(&s->cbp_table);
1022 av_freep(&s->pred_dir_table);
1024 av_freep(&s->mbskip_table);
1026 av_freep(&s->er.error_status_table);
1027 av_freep(&s->er.er_temp_buffer);
1028 av_freep(&s->mb_index2xy);
1029 av_freep(&s->lambda_table);
1031 av_freep(&s->cplx_tab);
1032 av_freep(&s->bits_tab);
1034 s->linesize = s->uvlinesize = 0;
1037 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1041 if (!s->context_initialized)
1042 return AVERROR(EINVAL);
1044 if (s->slice_context_count > 1) {
1045 for (i = 0; i < s->slice_context_count; i++) {
1046 free_duplicate_context(s->thread_context[i]);
1048 for (i = 1; i < s->slice_context_count; i++) {
1049 av_freep(&s->thread_context[i]);
1052 free_duplicate_context(s);
1054 free_context_frame(s);
1057 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1058 s->picture[i].needs_realloc = 1;
1061 s->last_picture_ptr =
1062 s->next_picture_ptr =
1063 s->current_picture_ptr = NULL;
1066 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1067 s->mb_height = (s->height + 31) / 32 * 2;
1069 s->mb_height = (s->height + 15) / 16;
1071 if ((s->width || s->height) &&
1072 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1075 if ((err = init_context_frame(s)))
1078 memset(s->thread_context, 0, sizeof(s->thread_context));
1079 s->thread_context[0] = s;
1081 if (s->width && s->height) {
1082 int nb_slices = s->slice_context_count;
1083 if (nb_slices > 1) {
1084 for (i = 0; i < nb_slices; i++) {
1086 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1087 if (!s->thread_context[i]) {
1088 err = AVERROR(ENOMEM);
1092 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1094 s->thread_context[i]->start_mb_y =
1095 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1096 s->thread_context[i]->end_mb_y =
1097 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1100 err = init_duplicate_context(s);
1104 s->end_mb_y = s->mb_height;
1106 s->slice_context_count = nb_slices;
1111 ff_mpv_common_end(s);
1115 /* init common structure for both encoder and decoder */
1116 void ff_mpv_common_end(MpegEncContext *s)
1123 if (s->slice_context_count > 1) {
1124 for (i = 0; i < s->slice_context_count; i++) {
1125 free_duplicate_context(s->thread_context[i]);
1127 for (i = 1; i < s->slice_context_count; i++) {
1128 av_freep(&s->thread_context[i]);
1130 s->slice_context_count = 1;
1131 } else free_duplicate_context(s);
1133 av_freep(&s->parse_context.buffer);
1134 s->parse_context.buffer_size = 0;
1136 av_freep(&s->bitstream_buffer);
1137 s->allocated_bitstream_buffer_size = 0;
1140 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1141 ff_free_picture_tables(&s->picture[i]);
1142 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1143 av_frame_free(&s->picture[i].f);
1146 av_freep(&s->picture);
1147 ff_free_picture_tables(&s->last_picture);
1148 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1149 av_frame_free(&s->last_picture.f);
1150 ff_free_picture_tables(&s->current_picture);
1151 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1152 av_frame_free(&s->current_picture.f);
1153 ff_free_picture_tables(&s->next_picture);
1154 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1155 av_frame_free(&s->next_picture.f);
1156 ff_free_picture_tables(&s->new_picture);
1157 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1158 av_frame_free(&s->new_picture.f);
1160 free_context_frame(s);
1162 s->context_initialized = 0;
1163 s->last_picture_ptr =
1164 s->next_picture_ptr =
1165 s->current_picture_ptr = NULL;
1166 s->linesize = s->uvlinesize = 0;
1170 static void gray_frame(AVFrame *frame)
1172 int i, h_chroma_shift, v_chroma_shift;
1174 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1176 for(i=0; i<frame->height; i++)
1177 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1178 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1179 memset(frame->data[1] + frame->linesize[1]*i,
1180 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1181 memset(frame->data[2] + frame->linesize[2]*i,
1182 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1187 * generic function called after decoding
1188 * the header and before a frame is decoded.
1190 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1196 if (!ff_thread_can_start_frame(avctx)) {
1197 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1201 /* mark & release old frames */
1202 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1203 s->last_picture_ptr != s->next_picture_ptr &&
1204 s->last_picture_ptr->f->buf[0]) {
1205 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1208 /* release forgotten pictures */
1209 /* if (MPEG-124 / H.263) */
1210 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1211 if (&s->picture[i] != s->last_picture_ptr &&
1212 &s->picture[i] != s->next_picture_ptr &&
1213 s->picture[i].reference && !s->picture[i].needs_realloc) {
1214 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1218 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1219 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1220 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1222 /* release non reference frames */
1223 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1224 if (!s->picture[i].reference)
1225 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1228 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1229 // we already have an unused image
1230 // (maybe it was set before reading the header)
1231 pic = s->current_picture_ptr;
1233 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1235 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1238 pic = &s->picture[i];
1242 if (!s->droppable) {
1243 if (s->pict_type != AV_PICTURE_TYPE_B)
1247 pic->f->coded_picture_number = s->coded_picture_number++;
1249 if (alloc_picture(s, pic, 0) < 0)
1252 s->current_picture_ptr = pic;
1253 // FIXME use only the vars from current_pic
1254 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1255 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1256 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1257 if (s->picture_structure != PICT_FRAME)
1258 s->current_picture_ptr->f->top_field_first =
1259 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1261 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1262 !s->progressive_sequence;
1263 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1265 s->current_picture_ptr->f->pict_type = s->pict_type;
1266 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1267 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1268 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1270 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1271 s->current_picture_ptr)) < 0)
1274 if (s->pict_type != AV_PICTURE_TYPE_B) {
1275 s->last_picture_ptr = s->next_picture_ptr;
1277 s->next_picture_ptr = s->current_picture_ptr;
1279 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1280 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1281 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1282 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1283 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1284 s->pict_type, s->droppable);
1286 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1287 (s->pict_type != AV_PICTURE_TYPE_I)) {
1288 int h_chroma_shift, v_chroma_shift;
1289 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1290 &h_chroma_shift, &v_chroma_shift);
1291 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1292 av_log(avctx, AV_LOG_DEBUG,
1293 "allocating dummy last picture for B frame\n");
1294 else if (s->pict_type != AV_PICTURE_TYPE_I)
1295 av_log(avctx, AV_LOG_ERROR,
1296 "warning: first frame is no keyframe\n");
1298 /* Allocate a dummy frame */
1299 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1301 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1304 s->last_picture_ptr = &s->picture[i];
1306 s->last_picture_ptr->reference = 3;
1307 s->last_picture_ptr->f->key_frame = 0;
1308 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1310 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1311 s->last_picture_ptr = NULL;
1315 if (!avctx->hwaccel) {
1316 for(i=0; i<avctx->height; i++)
1317 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1318 0x80, avctx->width);
1319 if (s->last_picture_ptr->f->data[2]) {
1320 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1321 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1322 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1323 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1324 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1328 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1329 for(i=0; i<avctx->height; i++)
1330 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1334 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1335 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1337 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1338 s->pict_type == AV_PICTURE_TYPE_B) {
1339 /* Allocate a dummy frame */
1340 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1342 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1345 s->next_picture_ptr = &s->picture[i];
1347 s->next_picture_ptr->reference = 3;
1348 s->next_picture_ptr->f->key_frame = 0;
1349 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1351 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1352 s->next_picture_ptr = NULL;
1355 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1356 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1359 #if 0 // BUFREF-FIXME
1360 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1361 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1363 if (s->last_picture_ptr) {
1364 if (s->last_picture_ptr->f->buf[0] &&
1365 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1366 s->last_picture_ptr)) < 0)
1369 if (s->next_picture_ptr) {
1370 if (s->next_picture_ptr->f->buf[0] &&
1371 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1372 s->next_picture_ptr)) < 0)
1376 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1377 s->last_picture_ptr->f->buf[0]));
1379 if (s->picture_structure!= PICT_FRAME) {
1381 for (i = 0; i < 4; i++) {
1382 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1383 s->current_picture.f->data[i] +=
1384 s->current_picture.f->linesize[i];
1386 s->current_picture.f->linesize[i] *= 2;
1387 s->last_picture.f->linesize[i] *= 2;
1388 s->next_picture.f->linesize[i] *= 2;
1392 /* set dequantizer, we can't do it during init as
1393 * it might change for MPEG-4 and we can't do it in the header
1394 * decode as init is not called for MPEG-4 there yet */
1395 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1396 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1397 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1398 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1399 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1400 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1402 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1403 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1406 if (s->avctx->debug & FF_DEBUG_NOMC) {
1407 gray_frame(s->current_picture_ptr->f);
1413 /* called after a frame has been decoded. */
1414 void ff_mpv_frame_end(MpegEncContext *s)
1418 if (s->current_picture.reference)
1419 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1422 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1424 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1425 p->qscale_table, p->motion_val, &s->low_delay,
1426 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1429 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1431 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1432 int offset = 2*s->mb_stride + 1;
1434 return AVERROR(ENOMEM);
1435 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1436 ref->size -= offset;
1437 ref->data += offset;
1438 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1441 static inline int hpel_motion_lowres(MpegEncContext *s,
1442 uint8_t *dest, uint8_t *src,
1443 int field_based, int field_select,
1444 int src_x, int src_y,
1445 int width, int height, ptrdiff_t stride,
1446 int h_edge_pos, int v_edge_pos,
1447 int w, int h, h264_chroma_mc_func *pix_op,
1448 int motion_x, int motion_y)
1450 const int lowres = s->avctx->lowres;
1451 const int op_index = FFMIN(lowres, 3);
1452 const int s_mask = (2 << lowres) - 1;
1456 if (s->quarter_sample) {
1461 sx = motion_x & s_mask;
1462 sy = motion_y & s_mask;
1463 src_x += motion_x >> lowres + 1;
1464 src_y += motion_y >> lowres + 1;
1466 src += src_y * stride + src_x;
1468 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1469 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1470 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1471 s->linesize, s->linesize,
1472 w + 1, (h + 1) << field_based,
1473 src_x, src_y << field_based,
1474 h_edge_pos, v_edge_pos);
1475 src = s->sc.edge_emu_buffer;
1479 sx = (sx << 2) >> lowres;
1480 sy = (sy << 2) >> lowres;
1483 pix_op[op_index](dest, src, stride, h, sx, sy);
1487 /* apply one mpeg motion vector to the three components */
1488 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1495 uint8_t **ref_picture,
1496 h264_chroma_mc_func *pix_op,
1497 int motion_x, int motion_y,
1500 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1501 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1502 ptrdiff_t uvlinesize, linesize;
1503 const int lowres = s->avctx->lowres;
1504 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1505 const int block_s = 8>>lowres;
1506 const int s_mask = (2 << lowres) - 1;
1507 const int h_edge_pos = s->h_edge_pos >> lowres;
1508 const int v_edge_pos = s->v_edge_pos >> lowres;
1509 linesize = s->current_picture.f->linesize[0] << field_based;
1510 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1512 // FIXME obviously not perfect but qpel will not work in lowres anyway
1513 if (s->quarter_sample) {
1519 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1522 sx = motion_x & s_mask;
1523 sy = motion_y & s_mask;
1524 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1525 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1527 if (s->out_format == FMT_H263) {
1528 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1529 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1530 uvsrc_x = src_x >> 1;
1531 uvsrc_y = src_y >> 1;
1532 } else if (s->out_format == FMT_H261) {
1533 // even chroma mv's are full pel in H261
1536 uvsx = (2 * mx) & s_mask;
1537 uvsy = (2 * my) & s_mask;
1538 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1539 uvsrc_y = mb_y * block_s + (my >> lowres);
1541 if(s->chroma_y_shift){
1546 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1547 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1549 if(s->chroma_x_shift){
1553 uvsy = motion_y & s_mask;
1555 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1558 uvsx = motion_x & s_mask;
1559 uvsy = motion_y & s_mask;
1566 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1567 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1568 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1570 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1571 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1572 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1573 linesize >> field_based, linesize >> field_based,
1574 17, 17 + field_based,
1575 src_x, src_y << field_based, h_edge_pos,
1577 ptr_y = s->sc.edge_emu_buffer;
1578 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1579 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1580 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1581 if (s->workaround_bugs & FF_BUG_IEDGE)
1582 vbuf -= s->uvlinesize;
1583 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1584 uvlinesize >> field_based, uvlinesize >> field_based,
1586 uvsrc_x, uvsrc_y << field_based,
1587 h_edge_pos >> 1, v_edge_pos >> 1);
1588 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1589 uvlinesize >> field_based,uvlinesize >> field_based,
1591 uvsrc_x, uvsrc_y << field_based,
1592 h_edge_pos >> 1, v_edge_pos >> 1);
1598 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1600 dest_y += s->linesize;
1601 dest_cb += s->uvlinesize;
1602 dest_cr += s->uvlinesize;
1606 ptr_y += s->linesize;
1607 ptr_cb += s->uvlinesize;
1608 ptr_cr += s->uvlinesize;
1611 sx = (sx << 2) >> lowres;
1612 sy = (sy << 2) >> lowres;
1613 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1615 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1616 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1617 uvsx = (uvsx << 2) >> lowres;
1618 uvsy = (uvsy << 2) >> lowres;
1620 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1621 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1624 // FIXME h261 lowres loop filter
1627 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1628 uint8_t *dest_cb, uint8_t *dest_cr,
1629 uint8_t **ref_picture,
1630 h264_chroma_mc_func * pix_op,
1633 const int lowres = s->avctx->lowres;
1634 const int op_index = FFMIN(lowres, 3);
1635 const int block_s = 8 >> lowres;
1636 const int s_mask = (2 << lowres) - 1;
1637 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1638 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1639 int emu = 0, src_x, src_y, sx, sy;
1643 if (s->quarter_sample) {
1648 /* In case of 8X8, we construct a single chroma motion vector
1649 with a special rounding */
1650 mx = ff_h263_round_chroma(mx);
1651 my = ff_h263_round_chroma(my);
1655 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1656 src_y = s->mb_y * block_s + (my >> lowres + 1);
1658 offset = src_y * s->uvlinesize + src_x;
1659 ptr = ref_picture[1] + offset;
1660 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1661 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1662 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1663 s->uvlinesize, s->uvlinesize,
1665 src_x, src_y, h_edge_pos, v_edge_pos);
1666 ptr = s->sc.edge_emu_buffer;
1669 sx = (sx << 2) >> lowres;
1670 sy = (sy << 2) >> lowres;
1671 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1673 ptr = ref_picture[2] + offset;
1675 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1676 s->uvlinesize, s->uvlinesize,
1678 src_x, src_y, h_edge_pos, v_edge_pos);
1679 ptr = s->sc.edge_emu_buffer;
1681 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1685 * motion compensation of a single macroblock
1687 * @param dest_y luma destination pointer
1688 * @param dest_cb chroma cb/u destination pointer
1689 * @param dest_cr chroma cr/v destination pointer
1690 * @param dir direction (0->forward, 1->backward)
1691 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1692 * @param pix_op halfpel motion compensation function (average or put normally)
1693 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1695 static inline void MPV_motion_lowres(MpegEncContext *s,
1696 uint8_t *dest_y, uint8_t *dest_cb,
1698 int dir, uint8_t **ref_picture,
1699 h264_chroma_mc_func *pix_op)
1703 const int lowres = s->avctx->lowres;
1704 const int block_s = 8 >>lowres;
1709 switch (s->mv_type) {
1711 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1713 ref_picture, pix_op,
1714 s->mv[dir][0][0], s->mv[dir][0][1],
1720 for (i = 0; i < 4; i++) {
1721 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1722 s->linesize) * block_s,
1723 ref_picture[0], 0, 0,
1724 (2 * mb_x + (i & 1)) * block_s,
1725 (2 * mb_y + (i >> 1)) * block_s,
1726 s->width, s->height, s->linesize,
1727 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1728 block_s, block_s, pix_op,
1729 s->mv[dir][i][0], s->mv[dir][i][1]);
1731 mx += s->mv[dir][i][0];
1732 my += s->mv[dir][i][1];
1735 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1736 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1740 if (s->picture_structure == PICT_FRAME) {
1742 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1743 1, 0, s->field_select[dir][0],
1744 ref_picture, pix_op,
1745 s->mv[dir][0][0], s->mv[dir][0][1],
1748 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1749 1, 1, s->field_select[dir][1],
1750 ref_picture, pix_op,
1751 s->mv[dir][1][0], s->mv[dir][1][1],
1754 if (s->picture_structure != s->field_select[dir][0] + 1 &&
1755 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1756 ref_picture = s->current_picture_ptr->f->data;
1759 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1760 0, 0, s->field_select[dir][0],
1761 ref_picture, pix_op,
1763 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1767 for (i = 0; i < 2; i++) {
1768 uint8_t **ref2picture;
1770 if (s->picture_structure == s->field_select[dir][i] + 1 ||
1771 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1772 ref2picture = ref_picture;
1774 ref2picture = s->current_picture_ptr->f->data;
1777 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1778 0, 0, s->field_select[dir][i],
1779 ref2picture, pix_op,
1780 s->mv[dir][i][0], s->mv[dir][i][1] +
1781 2 * block_s * i, block_s, mb_y >> 1);
1783 dest_y += 2 * block_s * s->linesize;
1784 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1785 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1789 if (s->picture_structure == PICT_FRAME) {
1790 for (i = 0; i < 2; i++) {
1792 for (j = 0; j < 2; j++) {
1793 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1795 ref_picture, pix_op,
1796 s->mv[dir][2 * i + j][0],
1797 s->mv[dir][2 * i + j][1],
1800 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1803 for (i = 0; i < 2; i++) {
1804 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1805 0, 0, s->picture_structure != i + 1,
1806 ref_picture, pix_op,
1807 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1808 2 * block_s, mb_y >> 1);
1810 // after put we make avg of the same block
1811 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1813 // opposite parity is always in the same
1814 // frame if this is second field
1815 if (!s->first_field) {
1816 ref_picture = s->current_picture_ptr->f->data;
1827 * find the lowest MB row referenced in the MVs
1829 static int lowest_referenced_row(MpegEncContext *s, int dir)
1831 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1832 int my, off, i, mvs;
1834 if (s->picture_structure != PICT_FRAME || s->mcsel)
1837 switch (s->mv_type) {
1851 for (i = 0; i < mvs; i++) {
1852 my = s->mv[dir][i][1];
1853 my_max = FFMAX(my_max, my);
1854 my_min = FFMIN(my_min, my);
1857 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1859 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1861 return s->mb_height-1;
1864 /* put block[] to dest[] */
1865 static inline void put_dct(MpegEncContext *s,
1866 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1868 s->dct_unquantize_intra(s, block, i, qscale);
1869 s->idsp.idct_put(dest, line_size, block);
1872 /* add block[] to dest[] */
1873 static inline void add_dct(MpegEncContext *s,
1874 int16_t *block, int i, uint8_t *dest, int line_size)
1876 if (s->block_last_index[i] >= 0) {
1877 s->idsp.idct_add(dest, line_size, block);
1881 static inline void add_dequant_dct(MpegEncContext *s,
1882 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1884 if (s->block_last_index[i] >= 0) {
1885 s->dct_unquantize_inter(s, block, i, qscale);
1887 s->idsp.idct_add(dest, line_size, block);
1892 * Clean dc, ac, coded_block for the current non-intra MB.
1894 void ff_clean_intra_table_entries(MpegEncContext *s)
1896 int wrap = s->b8_stride;
1897 int xy = s->block_index[0];
1900 s->dc_val[0][xy + 1 ] =
1901 s->dc_val[0][xy + wrap] =
1902 s->dc_val[0][xy + 1 + wrap] = 1024;
1904 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1905 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1906 if (s->msmpeg4_version>=3) {
1907 s->coded_block[xy ] =
1908 s->coded_block[xy + 1 ] =
1909 s->coded_block[xy + wrap] =
1910 s->coded_block[xy + 1 + wrap] = 0;
1913 wrap = s->mb_stride;
1914 xy = s->mb_x + s->mb_y * wrap;
1916 s->dc_val[2][xy] = 1024;
1918 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1919 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1921 s->mbintra_table[xy]= 0;
1924 /* generic function called after a macroblock has been parsed by the
1925 decoder or after it has been encoded by the encoder.
1927 Important variables used:
1928 s->mb_intra : true if intra macroblock
1929 s->mv_dir : motion vector direction
1930 s->mv_type : motion vector type
1931 s->mv : motion vector
1932 s->interlaced_dct : true if interlaced dct used (mpeg2)
1934 static av_always_inline
1935 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1936 int lowres_flag, int is_mpeg12)
1938 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1941 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1942 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1946 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1947 /* print DCT coefficients */
1949 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1951 for(j=0; j<64; j++){
1952 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1953 block[i][s->idsp.idct_permutation[j]]);
1955 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1959 s->current_picture.qscale_table[mb_xy] = s->qscale;
1961 /* update DC predictors for P macroblocks */
1963 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1964 if(s->mbintra_table[mb_xy])
1965 ff_clean_intra_table_entries(s);
1969 s->last_dc[2] = 128 << s->intra_dc_precision;
1972 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1973 s->mbintra_table[mb_xy]=1;
1975 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1976 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1977 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1978 uint8_t *dest_y, *dest_cb, *dest_cr;
1979 int dct_linesize, dct_offset;
1980 op_pixels_func (*op_pix)[4];
1981 qpel_mc_func (*op_qpix)[16];
1982 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1983 const int uvlinesize = s->current_picture.f->linesize[1];
1984 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1985 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1987 /* avoid copy if macroblock skipped in last frame too */
1988 /* skip only during decoding as we might trash the buffers during encoding a bit */
1990 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1992 if (s->mb_skipped) {
1994 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
1996 } else if(!s->current_picture.reference) {
1999 *mbskip_ptr = 0; /* not skipped */
2003 dct_linesize = linesize << s->interlaced_dct;
2004 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2008 dest_cb= s->dest[1];
2009 dest_cr= s->dest[2];
2011 dest_y = s->sc.b_scratchpad;
2012 dest_cb= s->sc.b_scratchpad+16*linesize;
2013 dest_cr= s->sc.b_scratchpad+32*linesize;
2017 /* motion handling */
2018 /* decoding or more than one mb_type (MC was already done otherwise) */
2021 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2022 if (s->mv_dir & MV_DIR_FORWARD) {
2023 ff_thread_await_progress(&s->last_picture_ptr->tf,
2024 lowest_referenced_row(s, 0),
2027 if (s->mv_dir & MV_DIR_BACKWARD) {
2028 ff_thread_await_progress(&s->next_picture_ptr->tf,
2029 lowest_referenced_row(s, 1),
2035 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2037 if (s->mv_dir & MV_DIR_FORWARD) {
2038 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2039 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2041 if (s->mv_dir & MV_DIR_BACKWARD) {
2042 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2045 op_qpix = s->me.qpel_put;
2046 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2047 op_pix = s->hdsp.put_pixels_tab;
2049 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2051 if (s->mv_dir & MV_DIR_FORWARD) {
2052 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2053 op_pix = s->hdsp.avg_pixels_tab;
2054 op_qpix= s->me.qpel_avg;
2056 if (s->mv_dir & MV_DIR_BACKWARD) {
2057 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2062 /* skip dequant / idct if we are really late ;) */
2063 if(s->avctx->skip_idct){
2064 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2065 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2066 || s->avctx->skip_idct >= AVDISCARD_ALL)
2070 /* add dct residue */
2071 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2072 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2073 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2074 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2075 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2076 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2078 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2079 if (s->chroma_y_shift){
2080 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2081 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2085 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2086 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2087 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2088 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2091 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2092 add_dct(s, block[0], 0, dest_y , dct_linesize);
2093 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2094 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2095 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2097 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2098 if(s->chroma_y_shift){//Chroma420
2099 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2100 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2103 dct_linesize = uvlinesize << s->interlaced_dct;
2104 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2106 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2107 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2108 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2109 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2110 if(!s->chroma_x_shift){//Chroma444
2111 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2112 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2113 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2114 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2119 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2120 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2123 /* dct only in intra block */
2124 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2125 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2126 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2127 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2128 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2130 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2131 if(s->chroma_y_shift){
2132 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2133 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2137 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2138 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2139 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2140 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2144 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2145 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2146 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2147 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2149 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2150 if(s->chroma_y_shift){
2151 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2152 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2155 dct_linesize = uvlinesize << s->interlaced_dct;
2156 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2158 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2159 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2160 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2161 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2162 if(!s->chroma_x_shift){//Chroma444
2163 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2164 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2165 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2166 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2174 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2175 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2176 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2177 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2183 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2186 if(s->out_format == FMT_MPEG1) {
2187 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2188 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2191 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2192 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2195 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2197 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2198 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2199 s->first_field, s->low_delay);
2202 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2203 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2204 const int uvlinesize = s->current_picture.f->linesize[1];
2205 const int mb_size= 4 - s->avctx->lowres;
2207 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2208 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2209 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2210 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2211 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2212 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;
2213 //block_index is not used by mpeg2, so it is not affected by chroma_format
2215 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
2216 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2217 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2219 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2221 if(s->picture_structure==PICT_FRAME){
2222 s->dest[0] += s->mb_y * linesize << mb_size;
2223 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2224 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2226 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2227 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2228 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2229 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2234 void ff_mpeg_flush(AVCodecContext *avctx){
2236 MpegEncContext *s = avctx->priv_data;
2238 if (!s || !s->picture)
2241 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2242 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2243 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2245 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2246 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2247 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2249 s->mb_x= s->mb_y= 0;
2252 s->parse_context.state= -1;
2253 s->parse_context.frame_start_found= 0;
2254 s->parse_context.overread= 0;
2255 s->parse_context.overread_index= 0;
2256 s->parse_context.index= 0;
2257 s->parse_context.last_index= 0;
2258 s->bitstream_buffer_size=0;
2263 * set qscale and update qscale dependent variables.
2265 void ff_set_qscale(MpegEncContext * s, int qscale)
2269 else if (qscale > 31)
2273 s->chroma_qscale= s->chroma_qscale_table[qscale];
2275 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2276 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2279 void ff_mpv_report_decode_progress(MpegEncContext *s)
2281 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2282 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);