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/video_enc_params.h"
39 #include "h264chroma.h"
44 #include "mpegutils.h"
45 #include "mpegvideo.h"
46 #include "mpegvideodata.h"
54 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
55 int16_t *block, int n, int qscale)
57 int i, level, nCoeffs;
58 const uint16_t *quant_matrix;
60 nCoeffs= s->block_last_index[n];
62 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
63 /* XXX: only MPEG-1 */
64 quant_matrix = s->intra_matrix;
65 for(i=1;i<=nCoeffs;i++) {
66 int j= s->intra_scantable.permutated[i];
71 level = (int)(level * qscale * quant_matrix[j]) >> 3;
72 level = (level - 1) | 1;
75 level = (int)(level * qscale * quant_matrix[j]) >> 3;
76 level = (level - 1) | 1;
83 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
84 int16_t *block, int n, int qscale)
86 int i, level, nCoeffs;
87 const uint16_t *quant_matrix;
89 nCoeffs= s->block_last_index[n];
91 quant_matrix = s->inter_matrix;
92 for(i=0; i<=nCoeffs; i++) {
93 int j= s->intra_scantable.permutated[i];
98 level = (((level << 1) + 1) * qscale *
99 ((int) (quant_matrix[j]))) >> 4;
100 level = (level - 1) | 1;
103 level = (((level << 1) + 1) * qscale *
104 ((int) (quant_matrix[j]))) >> 4;
105 level = (level - 1) | 1;
112 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
113 int16_t *block, int n, int qscale)
115 int i, level, nCoeffs;
116 const uint16_t *quant_matrix;
118 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
121 if(s->alternate_scan) nCoeffs= 63;
122 else nCoeffs= s->block_last_index[n];
124 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
125 quant_matrix = s->intra_matrix;
126 for(i=1;i<=nCoeffs;i++) {
127 int j= s->intra_scantable.permutated[i];
132 level = (int)(level * qscale * quant_matrix[j]) >> 4;
135 level = (int)(level * qscale * quant_matrix[j]) >> 4;
142 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
143 int16_t *block, int n, int qscale)
145 int i, level, nCoeffs;
146 const uint16_t *quant_matrix;
149 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
152 if(s->alternate_scan) nCoeffs= 63;
153 else nCoeffs= s->block_last_index[n];
155 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
157 quant_matrix = s->intra_matrix;
158 for(i=1;i<=nCoeffs;i++) {
159 int j= s->intra_scantable.permutated[i];
164 level = (int)(level * qscale * quant_matrix[j]) >> 4;
167 level = (int)(level * qscale * quant_matrix[j]) >> 4;
176 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
177 int16_t *block, int n, int qscale)
179 int i, level, nCoeffs;
180 const uint16_t *quant_matrix;
183 if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
186 if(s->alternate_scan) nCoeffs= 63;
187 else nCoeffs= s->block_last_index[n];
189 quant_matrix = s->inter_matrix;
190 for(i=0; i<=nCoeffs; i++) {
191 int j= s->intra_scantable.permutated[i];
196 level = (((level << 1) + 1) * qscale *
197 ((int) (quant_matrix[j]))) >> 5;
200 level = (((level << 1) + 1) * qscale *
201 ((int) (quant_matrix[j]))) >> 5;
210 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
211 int16_t *block, int n, int qscale)
213 int i, level, qmul, qadd;
216 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
221 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
222 qadd = (qscale - 1) | 1;
229 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
231 for(i=1; i<=nCoeffs; i++) {
235 level = level * qmul - qadd;
237 level = level * qmul + qadd;
244 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
245 int16_t *block, int n, int qscale)
247 int i, level, qmul, qadd;
250 av_assert2(s->block_last_index[n]>=0);
252 qadd = (qscale - 1) | 1;
255 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
257 for(i=0; i<=nCoeffs; i++) {
261 level = level * qmul - qadd;
263 level = level * qmul + qadd;
271 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
274 memset(dst + h*linesize, 128, 16);
277 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
280 memset(dst + h*linesize, 128, 8);
283 /* init common dct for both encoder and decoder */
284 static av_cold int dct_init(MpegEncContext *s)
286 ff_blockdsp_init(&s->bdsp, s->avctx);
287 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
288 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
289 ff_mpegvideodsp_init(&s->mdsp);
290 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
292 if (s->avctx->debug & FF_DEBUG_NOMC) {
294 for (i=0; i<4; i++) {
295 s->hdsp.avg_pixels_tab[0][i] = gray16;
296 s->hdsp.put_pixels_tab[0][i] = gray16;
297 s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
299 s->hdsp.avg_pixels_tab[1][i] = gray8;
300 s->hdsp.put_pixels_tab[1][i] = gray8;
301 s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
305 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
306 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
307 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
308 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
309 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
310 if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
311 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
312 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
314 if (HAVE_INTRINSICS_NEON)
315 ff_mpv_common_init_neon(s);
318 ff_mpv_common_init_axp(s);
320 ff_mpv_common_init_arm(s);
322 ff_mpv_common_init_ppc(s);
324 ff_mpv_common_init_x86(s);
326 ff_mpv_common_init_mips(s);
331 av_cold void ff_mpv_idct_init(MpegEncContext *s)
333 if (s->codec_id == AV_CODEC_ID_MPEG4)
334 s->idsp.mpeg4_studio_profile = s->studio_profile;
335 ff_idctdsp_init(&s->idsp, s->avctx);
337 /* load & permutate scantables
338 * note: only wmv uses different ones
340 if (s->alternate_scan) {
341 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
342 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
344 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
345 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
347 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
348 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
351 static int alloc_picture(MpegEncContext *s, Picture *pic)
353 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, 0, 0,
354 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
355 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
356 &s->linesize, &s->uvlinesize);
359 static int init_duplicate_context(MpegEncContext *s)
361 int y_size = s->b8_stride * (2 * s->mb_height + 1);
362 int c_size = s->mb_stride * (s->mb_height + 1);
363 int yc_size = y_size + 2 * c_size;
366 if (s->mb_height & 1)
367 yc_size += 2*s->b8_stride + 2*s->mb_stride;
370 if (!FF_ALLOCZ_TYPED_ARRAY(s->me.map, ME_MAP_SIZE) ||
371 !FF_ALLOCZ_TYPED_ARRAY(s->me.score_map, ME_MAP_SIZE))
372 return AVERROR(ENOMEM);
374 if (s->noise_reduction) {
375 if (!FF_ALLOCZ_TYPED_ARRAY(s->dct_error_sum, 2))
376 return AVERROR(ENOMEM);
379 if (!FF_ALLOCZ_TYPED_ARRAY(s->blocks, 2))
380 return AVERROR(ENOMEM);
381 s->block = s->blocks[0];
383 for (i = 0; i < 12; i++) {
384 s->pblocks[i] = &s->block[i];
387 if (!(s->block32 = av_mallocz(sizeof(*s->block32))) ||
388 !(s->dpcm_macroblock = av_mallocz(sizeof(*s->dpcm_macroblock))))
389 return AVERROR(ENOMEM);
390 s->dpcm_direction = 0;
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 if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base, yc_size))
400 return AVERROR(ENOMEM);
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;
410 * Initialize an MpegEncContext's thread contexts. Presumes that
411 * slice_context_count is already set and that all the fields
412 * that are freed/reset in free_duplicate_context() are NULL.
414 static int init_duplicate_contexts(MpegEncContext *s)
416 int nb_slices = s->slice_context_count, ret;
418 /* We initialize the copies before the original so that
419 * fields allocated in init_duplicate_context are NULL after
420 * copying. This prevents double-frees upon allocation error. */
421 for (int i = 1; i < nb_slices; i++) {
422 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
423 if (!s->thread_context[i])
424 return AVERROR(ENOMEM);
425 if ((ret = init_duplicate_context(s->thread_context[i])) < 0)
427 s->thread_context[i]->start_mb_y =
428 (s->mb_height * (i ) + nb_slices / 2) / nb_slices;
429 s->thread_context[i]->end_mb_y =
430 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
433 s->end_mb_y = nb_slices > 1 ? (s->mb_height + nb_slices / 2) / nb_slices
435 return init_duplicate_context(s);
438 static void free_duplicate_context(MpegEncContext *s)
443 av_freep(&s->sc.edge_emu_buffer);
444 av_freep(&s->me.scratchpad);
446 s->sc.rd_scratchpad =
448 s->sc.obmc_scratchpad = NULL;
450 av_freep(&s->dct_error_sum);
451 av_freep(&s->me.map);
452 av_freep(&s->me.score_map);
453 av_freep(&s->blocks);
454 av_freep(&s->block32);
455 av_freep(&s->dpcm_macroblock);
456 av_freep(&s->ac_val_base);
460 static void free_duplicate_contexts(MpegEncContext *s)
462 for (int i = 1; i < s->slice_context_count; i++) {
463 free_duplicate_context(s->thread_context[i]);
464 av_freep(&s->thread_context[i]);
466 free_duplicate_context(s);
469 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
471 #define COPY(a) bak->a = src->a
472 COPY(sc.edge_emu_buffer);
475 COPY(sc.rd_scratchpad);
476 COPY(sc.b_scratchpad);
477 COPY(sc.obmc_scratchpad);
483 COPY(dpcm_macroblock);
484 COPY(dpcm_direction);
487 COPY(me.map_generation);
499 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
503 // FIXME copy only needed parts
504 backup_duplicate_context(&bak, dst);
505 memcpy(dst, src, sizeof(MpegEncContext));
506 backup_duplicate_context(dst, &bak);
507 for (i = 0; i < 12; i++) {
508 dst->pblocks[i] = &dst->block[i];
510 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
512 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
514 if (!dst->sc.edge_emu_buffer &&
515 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
516 &dst->sc, dst->linesize)) < 0) {
517 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
518 "scratch buffers.\n");
524 int ff_mpeg_update_thread_context(AVCodecContext *dst,
525 const AVCodecContext *src)
528 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
535 // FIXME can parameters change on I-frames?
536 // in that case dst may need a reinit
537 if (!s->context_initialized) {
539 memcpy(s, s1, sizeof(MpegEncContext));
542 s->bitstream_buffer = NULL;
543 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
545 if (s1->context_initialized){
546 // s->picture_range_start += MAX_PICTURE_COUNT;
547 // s->picture_range_end += MAX_PICTURE_COUNT;
549 if((err = ff_mpv_common_init(s)) < 0){
550 memset(s, 0, sizeof(MpegEncContext));
557 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
558 s->height = s1->height;
559 s->width = s1->width;
560 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
564 s->avctx->coded_height = s1->avctx->coded_height;
565 s->avctx->coded_width = s1->avctx->coded_width;
566 s->avctx->width = s1->avctx->width;
567 s->avctx->height = s1->avctx->height;
569 s->quarter_sample = s1->quarter_sample;
571 s->coded_picture_number = s1->coded_picture_number;
572 s->picture_number = s1->picture_number;
574 av_assert0(!s->picture || s->picture != s1->picture);
576 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
577 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
578 if (s1->picture && s1->picture[i].f->buf[0] &&
579 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
583 #define UPDATE_PICTURE(pic)\
585 ff_mpeg_unref_picture(s->avctx, &s->pic);\
586 if (s1->pic.f && s1->pic.f->buf[0])\
587 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
589 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
594 UPDATE_PICTURE(current_picture);
595 UPDATE_PICTURE(last_picture);
596 UPDATE_PICTURE(next_picture);
598 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
599 ((pic && pic >= old_ctx->picture && \
600 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
601 &new_ctx->picture[pic - old_ctx->picture] : NULL)
603 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
604 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
605 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
607 // Error/bug resilience
608 s->next_p_frame_damaged = s1->next_p_frame_damaged;
609 s->workaround_bugs = s1->workaround_bugs;
610 s->padding_bug_score = s1->padding_bug_score;
612 // MPEG-4 timing info
613 memcpy(&s->last_time_base, &s1->last_time_base,
614 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
615 (char *) &s1->last_time_base);
618 s->max_b_frames = s1->max_b_frames;
619 s->low_delay = s1->low_delay;
620 s->droppable = s1->droppable;
622 // DivX handling (doesn't work)
623 s->divx_packed = s1->divx_packed;
625 if (s1->bitstream_buffer) {
626 if (s1->bitstream_buffer_size +
627 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
628 av_fast_malloc(&s->bitstream_buffer,
629 &s->allocated_bitstream_buffer_size,
630 s1->allocated_bitstream_buffer_size);
631 if (!s->bitstream_buffer) {
632 s->bitstream_buffer_size = 0;
633 return AVERROR(ENOMEM);
636 s->bitstream_buffer_size = s1->bitstream_buffer_size;
637 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
638 s1->bitstream_buffer_size);
639 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
640 AV_INPUT_BUFFER_PADDING_SIZE);
643 // linesize-dependent scratch buffer allocation
644 if (!s->sc.edge_emu_buffer)
646 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
647 &s->sc, s1->linesize) < 0) {
648 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
649 "scratch buffers.\n");
650 return AVERROR(ENOMEM);
653 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
654 "be allocated due to unknown size.\n");
657 // MPEG-2/interlacing info
658 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
659 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
661 if (!s1->first_field) {
662 s->last_pict_type = s1->pict_type;
663 if (s1->current_picture_ptr)
664 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
671 * Set the given MpegEncContext to common defaults
672 * (same for encoding and decoding).
673 * The changed fields will not depend upon the
674 * prior state of the MpegEncContext.
676 void ff_mpv_common_defaults(MpegEncContext *s)
678 s->y_dc_scale_table =
679 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
680 s->chroma_qscale_table = ff_default_chroma_qscale_table;
681 s->progressive_frame = 1;
682 s->progressive_sequence = 1;
683 s->picture_structure = PICT_FRAME;
685 s->coded_picture_number = 0;
686 s->picture_number = 0;
691 s->slice_context_count = 1;
695 * Initialize the given MpegEncContext for decoding.
696 * the changed fields will not depend upon
697 * the prior state of the MpegEncContext.
699 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
701 ff_mpv_common_defaults(s);
704 s->width = avctx->coded_width;
705 s->height = avctx->coded_height;
706 s->codec_id = avctx->codec->id;
707 s->workaround_bugs = avctx->workaround_bugs;
709 /* convert fourcc to upper case */
710 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
714 * Initialize and allocates MpegEncContext fields dependent on the resolution.
716 static int init_context_frame(MpegEncContext *s)
718 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
720 s->mb_width = (s->width + 15) / 16;
721 s->mb_stride = s->mb_width + 1;
722 s->b8_stride = s->mb_width * 2 + 1;
723 mb_array_size = s->mb_height * s->mb_stride;
724 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
726 /* set default edge pos, will be overridden
727 * in decode_header if needed */
728 s->h_edge_pos = s->mb_width * 16;
729 s->v_edge_pos = s->mb_height * 16;
731 s->mb_num = s->mb_width * s->mb_height;
736 s->block_wrap[3] = s->b8_stride;
738 s->block_wrap[5] = s->mb_stride;
740 y_size = s->b8_stride * (2 * s->mb_height + 1);
741 c_size = s->mb_stride * (s->mb_height + 1);
742 yc_size = y_size + 2 * c_size;
744 if (s->mb_height & 1)
745 yc_size += 2*s->b8_stride + 2*s->mb_stride;
747 if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_index2xy, s->mb_num + 1))
748 return AVERROR(ENOMEM);
749 for (y = 0; y < s->mb_height; y++)
750 for (x = 0; x < s->mb_width; x++)
751 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
753 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
756 /* Allocate MV tables */
757 if (!FF_ALLOCZ_TYPED_ARRAY(s->p_mv_table_base, mv_table_size) ||
758 !FF_ALLOCZ_TYPED_ARRAY(s->b_forw_mv_table_base, mv_table_size) ||
759 !FF_ALLOCZ_TYPED_ARRAY(s->b_back_mv_table_base, mv_table_size) ||
760 !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_forw_mv_table_base, mv_table_size) ||
761 !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_back_mv_table_base, mv_table_size) ||
762 !FF_ALLOCZ_TYPED_ARRAY(s->b_direct_mv_table_base, mv_table_size))
763 return AVERROR(ENOMEM);
764 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
765 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
766 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
767 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
768 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
769 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
771 /* Allocate MB type table */
772 if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_type, mb_array_size) ||
773 !FF_ALLOCZ_TYPED_ARRAY(s->lambda_table, mb_array_size) ||
774 !FF_ALLOC_TYPED_ARRAY (s->cplx_tab, mb_array_size) ||
775 !FF_ALLOC_TYPED_ARRAY (s->bits_tab, mb_array_size))
776 return AVERROR(ENOMEM);
779 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
780 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
781 /* interlaced direct mode decoding tables */
782 for (i = 0; i < 2; i++) {
784 for (j = 0; j < 2; j++) {
785 for (k = 0; k < 2; k++) {
786 if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_mv_table_base[i][j][k], mv_table_size))
787 return AVERROR(ENOMEM);
788 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
791 if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_select_table [i][j], mv_table_size * 2) ||
792 !FF_ALLOCZ_TYPED_ARRAY(s->p_field_mv_table_base[i][j], mv_table_size))
793 return AVERROR(ENOMEM);
794 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
796 if (!FF_ALLOCZ_TYPED_ARRAY(s->p_field_select_table[i], mv_table_size * 2))
797 return AVERROR(ENOMEM);
800 if (s->out_format == FMT_H263) {
801 /* cbp values, cbp, ac_pred, pred_dir */
802 if (!FF_ALLOCZ_TYPED_ARRAY(s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride) ||
803 !FF_ALLOCZ_TYPED_ARRAY(s->cbp_table, mb_array_size) ||
804 !FF_ALLOCZ_TYPED_ARRAY(s->pred_dir_table, mb_array_size))
805 return AVERROR(ENOMEM);
806 s->coded_block = s->coded_block_base + s->b8_stride + 1;
809 if (s->h263_pred || s->h263_plus || !s->encoding) {
811 // MN: we need these for error resilience of intra-frames
812 if (!FF_ALLOCZ_TYPED_ARRAY(s->dc_val_base, yc_size))
813 return AVERROR(ENOMEM);
814 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
815 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
816 s->dc_val[2] = s->dc_val[1] + c_size;
817 for (i = 0; i < yc_size; i++)
818 s->dc_val_base[i] = 1024;
821 /* which mb is an intra block, init macroblock skip table */
822 if (!FF_ALLOC_TYPED_ARRAY(s->mbintra_table, mb_array_size) ||
823 // Note the + 1 is for a quicker MPEG-4 slice_end detection
824 !FF_ALLOCZ_TYPED_ARRAY(s->mbskip_table, mb_array_size + 2))
825 return AVERROR(ENOMEM);
826 memset(s->mbintra_table, 1, mb_array_size);
828 return ff_mpeg_er_init(s);
831 static void clear_context(MpegEncContext *s)
835 memset(&s->next_picture, 0, sizeof(s->next_picture));
836 memset(&s->last_picture, 0, sizeof(s->last_picture));
837 memset(&s->current_picture, 0, sizeof(s->current_picture));
838 memset(&s->new_picture, 0, sizeof(s->new_picture));
840 memset(s->thread_context, 0, sizeof(s->thread_context));
843 s->me.score_map = NULL;
844 s->dct_error_sum = NULL;
848 memset(s->pblocks, 0, sizeof(s->pblocks));
849 s->dpcm_direction = 0;
850 s->dpcm_macroblock = NULL;
851 s->ac_val_base = NULL;
855 s->sc.edge_emu_buffer = NULL;
856 s->me.scratchpad = NULL;
858 s->sc.rd_scratchpad =
860 s->sc.obmc_scratchpad = NULL;
863 s->bitstream_buffer = NULL;
864 s->allocated_bitstream_buffer_size = 0;
867 s->p_mv_table_base = NULL;
868 s->b_forw_mv_table_base = NULL;
869 s->b_back_mv_table_base = NULL;
870 s->b_bidir_forw_mv_table_base = NULL;
871 s->b_bidir_back_mv_table_base = NULL;
872 s->b_direct_mv_table_base = NULL;
873 s->p_mv_table = NULL;
874 s->b_forw_mv_table = NULL;
875 s->b_back_mv_table = NULL;
876 s->b_bidir_forw_mv_table = NULL;
877 s->b_bidir_back_mv_table = NULL;
878 s->b_direct_mv_table = NULL;
879 for (i = 0; i < 2; i++) {
880 for (j = 0; j < 2; j++) {
881 for (k = 0; k < 2; k++) {
882 s->b_field_mv_table_base[i][j][k] = NULL;
883 s->b_field_mv_table[i][j][k] = NULL;
885 s->b_field_select_table[i][j] = NULL;
886 s->p_field_mv_table_base[i][j] = NULL;
887 s->p_field_mv_table[i][j] = NULL;
889 s->p_field_select_table[i] = NULL;
892 s->dc_val_base = NULL;
893 s->coded_block_base = NULL;
894 s->mbintra_table = NULL;
896 s->pred_dir_table = NULL;
898 s->mbskip_table = NULL;
900 s->er.error_status_table = NULL;
901 s->er.er_temp_buffer = NULL;
902 s->mb_index2xy = NULL;
903 s->lambda_table = NULL;
910 * init common structure for both encoder and decoder.
911 * this assumes that some variables like width/height are already set
913 av_cold int ff_mpv_common_init(MpegEncContext *s)
916 int nb_slices = (HAVE_THREADS &&
917 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
918 s->avctx->thread_count : 1;
922 if (s->encoding && s->avctx->slices)
923 nb_slices = s->avctx->slices;
925 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
926 s->mb_height = (s->height + 31) / 32 * 2;
928 s->mb_height = (s->height + 15) / 16;
930 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
931 av_log(s->avctx, AV_LOG_ERROR,
932 "decoding to AV_PIX_FMT_NONE is not supported.\n");
933 return AVERROR(EINVAL);
936 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
939 max_slices = FFMIN(MAX_THREADS, s->mb_height);
941 max_slices = MAX_THREADS;
942 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
943 " reducing to %d\n", nb_slices, max_slices);
944 nb_slices = max_slices;
947 if ((s->width || s->height) &&
948 av_image_check_size(s->width, s->height, 0, s->avctx))
949 return AVERROR(EINVAL);
953 /* set chroma shifts */
954 ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
960 if (!FF_ALLOCZ_TYPED_ARRAY(s->picture, MAX_PICTURE_COUNT))
961 return AVERROR(ENOMEM);
962 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
963 s->picture[i].f = av_frame_alloc();
964 if (!s->picture[i].f)
968 if (!(s->next_picture.f = av_frame_alloc()) ||
969 !(s->last_picture.f = av_frame_alloc()) ||
970 !(s->current_picture.f = av_frame_alloc()) ||
971 !(s->new_picture.f = av_frame_alloc()))
974 if ((ret = init_context_frame(s)))
977 s->parse_context.state = -1;
979 s->context_initialized = 1;
980 memset(s->thread_context, 0, sizeof(s->thread_context));
981 s->thread_context[0] = s;
982 s->slice_context_count = nb_slices;
984 // if (s->width && s->height) {
985 ret = init_duplicate_contexts(s);
992 ret = AVERROR(ENOMEM);
994 ff_mpv_common_end(s);
999 * Frees and resets MpegEncContext fields depending on the resolution
1000 * as well as the slice thread contexts.
1001 * Is used during resolution changes to avoid a full reinitialization of the
1004 static void free_context_frame(MpegEncContext *s)
1008 free_duplicate_contexts(s);
1010 av_freep(&s->mb_type);
1011 av_freep(&s->p_mv_table_base);
1012 av_freep(&s->b_forw_mv_table_base);
1013 av_freep(&s->b_back_mv_table_base);
1014 av_freep(&s->b_bidir_forw_mv_table_base);
1015 av_freep(&s->b_bidir_back_mv_table_base);
1016 av_freep(&s->b_direct_mv_table_base);
1017 s->p_mv_table = NULL;
1018 s->b_forw_mv_table = NULL;
1019 s->b_back_mv_table = NULL;
1020 s->b_bidir_forw_mv_table = NULL;
1021 s->b_bidir_back_mv_table = NULL;
1022 s->b_direct_mv_table = NULL;
1023 for (i = 0; i < 2; i++) {
1024 for (j = 0; j < 2; j++) {
1025 for (k = 0; k < 2; k++) {
1026 av_freep(&s->b_field_mv_table_base[i][j][k]);
1027 s->b_field_mv_table[i][j][k] = NULL;
1029 av_freep(&s->b_field_select_table[i][j]);
1030 av_freep(&s->p_field_mv_table_base[i][j]);
1031 s->p_field_mv_table[i][j] = NULL;
1033 av_freep(&s->p_field_select_table[i]);
1036 av_freep(&s->dc_val_base);
1037 av_freep(&s->coded_block_base);
1038 av_freep(&s->mbintra_table);
1039 av_freep(&s->cbp_table);
1040 av_freep(&s->pred_dir_table);
1042 av_freep(&s->mbskip_table);
1044 av_freep(&s->er.error_status_table);
1045 av_freep(&s->er.er_temp_buffer);
1046 av_freep(&s->mb_index2xy);
1047 av_freep(&s->lambda_table);
1049 av_freep(&s->cplx_tab);
1050 av_freep(&s->bits_tab);
1052 s->linesize = s->uvlinesize = 0;
1055 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1059 if (!s->context_initialized)
1060 return AVERROR(EINVAL);
1062 free_context_frame(s);
1065 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1066 s->picture[i].needs_realloc = 1;
1069 s->last_picture_ptr =
1070 s->next_picture_ptr =
1071 s->current_picture_ptr = NULL;
1074 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1075 s->mb_height = (s->height + 31) / 32 * 2;
1077 s->mb_height = (s->height + 15) / 16;
1079 if ((s->width || s->height) &&
1080 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1083 /* set chroma shifts */
1084 err = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1086 &s->chroma_y_shift);
1090 if ((err = init_context_frame(s)))
1093 memset(s->thread_context, 0, sizeof(s->thread_context));
1094 s->thread_context[0] = s;
1096 if (s->width && s->height) {
1097 err = init_duplicate_contexts(s);
1101 s->context_reinit = 0;
1105 free_context_frame(s);
1106 s->context_reinit = 1;
1110 /* init common structure for both encoder and decoder */
1111 void ff_mpv_common_end(MpegEncContext *s)
1118 free_context_frame(s);
1119 if (s->slice_context_count > 1)
1120 s->slice_context_count = 1;
1122 av_freep(&s->parse_context.buffer);
1123 s->parse_context.buffer_size = 0;
1125 av_freep(&s->bitstream_buffer);
1126 s->allocated_bitstream_buffer_size = 0;
1132 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1133 ff_free_picture_tables(&s->picture[i]);
1134 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1135 av_frame_free(&s->picture[i].f);
1138 av_freep(&s->picture);
1139 ff_free_picture_tables(&s->last_picture);
1140 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1141 av_frame_free(&s->last_picture.f);
1142 ff_free_picture_tables(&s->current_picture);
1143 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1144 av_frame_free(&s->current_picture.f);
1145 ff_free_picture_tables(&s->next_picture);
1146 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1147 av_frame_free(&s->next_picture.f);
1148 ff_free_picture_tables(&s->new_picture);
1149 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1150 av_frame_free(&s->new_picture.f);
1152 s->context_initialized = 0;
1153 s->context_reinit = 0;
1154 s->last_picture_ptr =
1155 s->next_picture_ptr =
1156 s->current_picture_ptr = NULL;
1157 s->linesize = s->uvlinesize = 0;
1161 static void gray_frame(AVFrame *frame)
1163 int i, h_chroma_shift, v_chroma_shift;
1165 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1167 for(i=0; i<frame->height; i++)
1168 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1169 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1170 memset(frame->data[1] + frame->linesize[1]*i,
1171 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1172 memset(frame->data[2] + frame->linesize[2]*i,
1173 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1178 * generic function called after decoding
1179 * the header and before a frame is decoded.
1181 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1187 if (!ff_thread_can_start_frame(avctx)) {
1188 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1192 /* mark & release old frames */
1193 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1194 s->last_picture_ptr != s->next_picture_ptr &&
1195 s->last_picture_ptr->f->buf[0]) {
1196 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1199 /* release forgotten pictures */
1200 /* if (MPEG-124 / H.263) */
1201 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1202 if (&s->picture[i] != s->last_picture_ptr &&
1203 &s->picture[i] != s->next_picture_ptr &&
1204 s->picture[i].reference && !s->picture[i].needs_realloc) {
1205 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1209 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1210 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1211 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1213 /* release non reference frames */
1214 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1215 if (!s->picture[i].reference)
1216 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1219 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1220 // we already have an unused image
1221 // (maybe it was set before reading the header)
1222 pic = s->current_picture_ptr;
1224 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1226 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1229 pic = &s->picture[i];
1233 if (!s->droppable) {
1234 if (s->pict_type != AV_PICTURE_TYPE_B)
1238 pic->f->coded_picture_number = s->coded_picture_number++;
1240 if (alloc_picture(s, pic) < 0)
1243 s->current_picture_ptr = pic;
1244 // FIXME use only the vars from current_pic
1245 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1246 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1247 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1248 if (s->picture_structure != PICT_FRAME)
1249 s->current_picture_ptr->f->top_field_first =
1250 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1252 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1253 !s->progressive_sequence;
1254 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1256 s->current_picture_ptr->f->pict_type = s->pict_type;
1257 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1258 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1259 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1261 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1262 s->current_picture_ptr)) < 0)
1265 if (s->pict_type != AV_PICTURE_TYPE_B) {
1266 s->last_picture_ptr = s->next_picture_ptr;
1268 s->next_picture_ptr = s->current_picture_ptr;
1270 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1271 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1272 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1273 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1274 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1275 s->pict_type, s->droppable);
1277 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1278 (s->pict_type != AV_PICTURE_TYPE_I)) {
1279 int h_chroma_shift, v_chroma_shift;
1280 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1281 &h_chroma_shift, &v_chroma_shift);
1282 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1283 av_log(avctx, AV_LOG_DEBUG,
1284 "allocating dummy last picture for B frame\n");
1285 else if (s->pict_type != AV_PICTURE_TYPE_I)
1286 av_log(avctx, AV_LOG_ERROR,
1287 "warning: first frame is no keyframe\n");
1289 /* Allocate a dummy frame */
1290 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1292 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1295 s->last_picture_ptr = &s->picture[i];
1297 s->last_picture_ptr->reference = 3;
1298 s->last_picture_ptr->f->key_frame = 0;
1299 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1301 if (alloc_picture(s, s->last_picture_ptr) < 0) {
1302 s->last_picture_ptr = NULL;
1306 if (!avctx->hwaccel) {
1307 for(i=0; i<avctx->height; i++)
1308 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1309 0x80, avctx->width);
1310 if (s->last_picture_ptr->f->data[2]) {
1311 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1312 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1313 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1314 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1315 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1319 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1320 for(i=0; i<avctx->height; i++)
1321 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1325 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1326 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1328 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1329 s->pict_type == AV_PICTURE_TYPE_B) {
1330 /* Allocate a dummy frame */
1331 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1333 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1336 s->next_picture_ptr = &s->picture[i];
1338 s->next_picture_ptr->reference = 3;
1339 s->next_picture_ptr->f->key_frame = 0;
1340 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1342 if (alloc_picture(s, s->next_picture_ptr) < 0) {
1343 s->next_picture_ptr = NULL;
1346 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1347 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1350 #if 0 // BUFREF-FIXME
1351 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1352 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1354 if (s->last_picture_ptr) {
1355 if (s->last_picture_ptr->f->buf[0] &&
1356 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1357 s->last_picture_ptr)) < 0)
1360 if (s->next_picture_ptr) {
1361 if (s->next_picture_ptr->f->buf[0] &&
1362 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1363 s->next_picture_ptr)) < 0)
1367 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1368 s->last_picture_ptr->f->buf[0]));
1370 if (s->picture_structure!= PICT_FRAME) {
1372 for (i = 0; i < 4; i++) {
1373 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1374 s->current_picture.f->data[i] +=
1375 s->current_picture.f->linesize[i];
1377 s->current_picture.f->linesize[i] *= 2;
1378 s->last_picture.f->linesize[i] *= 2;
1379 s->next_picture.f->linesize[i] *= 2;
1383 /* set dequantizer, we can't do it during init as
1384 * it might change for MPEG-4 and we can't do it in the header
1385 * decode as init is not called for MPEG-4 there yet */
1386 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1387 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1388 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1389 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1390 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1391 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1393 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1394 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1397 if (s->avctx->debug & FF_DEBUG_NOMC) {
1398 gray_frame(s->current_picture_ptr->f);
1404 /* called after a frame has been decoded. */
1405 void ff_mpv_frame_end(MpegEncContext *s)
1409 if (s->current_picture.reference)
1410 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1413 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1415 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1416 p->qscale_table, p->motion_val, &s->low_delay,
1417 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1420 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1422 AVVideoEncParams *par;
1423 int mult = (qp_type == FF_QSCALE_TYPE_MPEG1) ? 2 : 1;
1424 unsigned int nb_mb = p->alloc_mb_height * p->alloc_mb_width;
1427 if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS))
1430 par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_MPEG2, nb_mb);
1432 return AVERROR(ENOMEM);
1434 for (y = 0; y < p->alloc_mb_height; y++)
1435 for (x = 0; x < p->alloc_mb_width; x++) {
1436 const unsigned int block_idx = y * p->alloc_mb_width + x;
1437 const unsigned int mb_xy = y * p->alloc_mb_stride + x;
1438 AVVideoBlockParams *b = av_video_enc_params_block(par, block_idx);
1445 b->delta_qp = p->qscale_table[mb_xy] * mult;
1451 static inline int hpel_motion_lowres(MpegEncContext *s,
1452 uint8_t *dest, uint8_t *src,
1453 int field_based, int field_select,
1454 int src_x, int src_y,
1455 int width, int height, ptrdiff_t stride,
1456 int h_edge_pos, int v_edge_pos,
1457 int w, int h, h264_chroma_mc_func *pix_op,
1458 int motion_x, int motion_y)
1460 const int lowres = s->avctx->lowres;
1461 const int op_index = FFMIN(lowres, 3);
1462 const int s_mask = (2 << lowres) - 1;
1466 if (s->quarter_sample) {
1471 sx = motion_x & s_mask;
1472 sy = motion_y & s_mask;
1473 src_x += motion_x >> lowres + 1;
1474 src_y += motion_y >> lowres + 1;
1476 src += src_y * stride + src_x;
1478 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1479 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1480 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1481 s->linesize, s->linesize,
1482 w + 1, (h + 1) << field_based,
1483 src_x, src_y << field_based,
1484 h_edge_pos, v_edge_pos);
1485 src = s->sc.edge_emu_buffer;
1489 sx = (sx << 2) >> lowres;
1490 sy = (sy << 2) >> lowres;
1493 pix_op[op_index](dest, src, stride, h, sx, sy);
1497 /* apply one mpeg motion vector to the three components */
1498 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1505 uint8_t **ref_picture,
1506 h264_chroma_mc_func *pix_op,
1507 int motion_x, int motion_y,
1510 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1511 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1512 ptrdiff_t uvlinesize, linesize;
1513 const int lowres = s->avctx->lowres;
1514 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1515 const int block_s = 8>>lowres;
1516 const int s_mask = (2 << lowres) - 1;
1517 const int h_edge_pos = s->h_edge_pos >> lowres;
1518 const int v_edge_pos = s->v_edge_pos >> lowres;
1519 linesize = s->current_picture.f->linesize[0] << field_based;
1520 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1522 // FIXME obviously not perfect but qpel will not work in lowres anyway
1523 if (s->quarter_sample) {
1529 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1532 sx = motion_x & s_mask;
1533 sy = motion_y & s_mask;
1534 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1535 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1537 if (s->out_format == FMT_H263) {
1538 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1539 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1540 uvsrc_x = src_x >> 1;
1541 uvsrc_y = src_y >> 1;
1542 } else if (s->out_format == FMT_H261) {
1543 // even chroma mv's are full pel in H261
1546 uvsx = (2 * mx) & s_mask;
1547 uvsy = (2 * my) & s_mask;
1548 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1549 uvsrc_y = mb_y * block_s + (my >> lowres);
1551 if(s->chroma_y_shift){
1556 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1557 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1559 if(s->chroma_x_shift){
1563 uvsy = motion_y & s_mask;
1565 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1568 uvsx = motion_x & s_mask;
1569 uvsy = motion_y & s_mask;
1576 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1577 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1578 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1580 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1581 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1582 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1583 linesize >> field_based, linesize >> field_based,
1584 17, 17 + field_based,
1585 src_x, src_y << field_based, h_edge_pos,
1587 ptr_y = s->sc.edge_emu_buffer;
1588 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1589 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1590 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1591 if (s->workaround_bugs & FF_BUG_IEDGE)
1592 vbuf -= s->uvlinesize;
1593 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1594 uvlinesize >> field_based, uvlinesize >> field_based,
1596 uvsrc_x, uvsrc_y << field_based,
1597 h_edge_pos >> 1, v_edge_pos >> 1);
1598 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1599 uvlinesize >> field_based,uvlinesize >> field_based,
1601 uvsrc_x, uvsrc_y << field_based,
1602 h_edge_pos >> 1, v_edge_pos >> 1);
1608 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1610 dest_y += s->linesize;
1611 dest_cb += s->uvlinesize;
1612 dest_cr += s->uvlinesize;
1616 ptr_y += s->linesize;
1617 ptr_cb += s->uvlinesize;
1618 ptr_cr += s->uvlinesize;
1621 sx = (sx << 2) >> lowres;
1622 sy = (sy << 2) >> lowres;
1623 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1625 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1626 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1627 uvsx = (uvsx << 2) >> lowres;
1628 uvsy = (uvsy << 2) >> lowres;
1630 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1631 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1634 // FIXME h261 lowres loop filter
1637 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1638 uint8_t *dest_cb, uint8_t *dest_cr,
1639 uint8_t **ref_picture,
1640 h264_chroma_mc_func * pix_op,
1643 const int lowres = s->avctx->lowres;
1644 const int op_index = FFMIN(lowres, 3);
1645 const int block_s = 8 >> lowres;
1646 const int s_mask = (2 << lowres) - 1;
1647 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1648 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1649 int emu = 0, src_x, src_y, sx, sy;
1653 if (s->quarter_sample) {
1658 /* In case of 8X8, we construct a single chroma motion vector
1659 with a special rounding */
1660 mx = ff_h263_round_chroma(mx);
1661 my = ff_h263_round_chroma(my);
1665 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1666 src_y = s->mb_y * block_s + (my >> lowres + 1);
1668 offset = src_y * s->uvlinesize + src_x;
1669 ptr = ref_picture[1] + offset;
1670 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1671 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1672 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1673 s->uvlinesize, s->uvlinesize,
1675 src_x, src_y, h_edge_pos, v_edge_pos);
1676 ptr = s->sc.edge_emu_buffer;
1679 sx = (sx << 2) >> lowres;
1680 sy = (sy << 2) >> lowres;
1681 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1683 ptr = ref_picture[2] + offset;
1685 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1686 s->uvlinesize, s->uvlinesize,
1688 src_x, src_y, h_edge_pos, v_edge_pos);
1689 ptr = s->sc.edge_emu_buffer;
1691 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1695 * motion compensation of a single macroblock
1697 * @param dest_y luma destination pointer
1698 * @param dest_cb chroma cb/u destination pointer
1699 * @param dest_cr chroma cr/v destination pointer
1700 * @param dir direction (0->forward, 1->backward)
1701 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1702 * @param pix_op halfpel motion compensation function (average or put normally)
1703 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1705 static inline void MPV_motion_lowres(MpegEncContext *s,
1706 uint8_t *dest_y, uint8_t *dest_cb,
1708 int dir, uint8_t **ref_picture,
1709 h264_chroma_mc_func *pix_op)
1713 const int lowres = s->avctx->lowres;
1714 const int block_s = 8 >>lowres;
1719 switch (s->mv_type) {
1721 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1723 ref_picture, pix_op,
1724 s->mv[dir][0][0], s->mv[dir][0][1],
1730 for (i = 0; i < 4; i++) {
1731 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1732 s->linesize) * block_s,
1733 ref_picture[0], 0, 0,
1734 (2 * mb_x + (i & 1)) * block_s,
1735 (2 * mb_y + (i >> 1)) * block_s,
1736 s->width, s->height, s->linesize,
1737 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1738 block_s, block_s, pix_op,
1739 s->mv[dir][i][0], s->mv[dir][i][1]);
1741 mx += s->mv[dir][i][0];
1742 my += s->mv[dir][i][1];
1745 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1746 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1750 if (s->picture_structure == PICT_FRAME) {
1752 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1753 1, 0, s->field_select[dir][0],
1754 ref_picture, pix_op,
1755 s->mv[dir][0][0], s->mv[dir][0][1],
1758 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1759 1, 1, s->field_select[dir][1],
1760 ref_picture, pix_op,
1761 s->mv[dir][1][0], s->mv[dir][1][1],
1764 if (s->picture_structure != s->field_select[dir][0] + 1 &&
1765 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1766 ref_picture = s->current_picture_ptr->f->data;
1769 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1770 0, 0, s->field_select[dir][0],
1771 ref_picture, pix_op,
1773 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1777 for (i = 0; i < 2; i++) {
1778 uint8_t **ref2picture;
1780 if (s->picture_structure == s->field_select[dir][i] + 1 ||
1781 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1782 ref2picture = ref_picture;
1784 ref2picture = s->current_picture_ptr->f->data;
1787 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1788 0, 0, s->field_select[dir][i],
1789 ref2picture, pix_op,
1790 s->mv[dir][i][0], s->mv[dir][i][1] +
1791 2 * block_s * i, block_s, mb_y >> 1);
1793 dest_y += 2 * block_s * s->linesize;
1794 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1795 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1799 if (s->picture_structure == PICT_FRAME) {
1800 for (i = 0; i < 2; i++) {
1802 for (j = 0; j < 2; j++) {
1803 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1805 ref_picture, pix_op,
1806 s->mv[dir][2 * i + j][0],
1807 s->mv[dir][2 * i + j][1],
1810 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1813 for (i = 0; i < 2; i++) {
1814 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1815 0, 0, s->picture_structure != i + 1,
1816 ref_picture, pix_op,
1817 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1818 2 * block_s, mb_y >> 1);
1820 // after put we make avg of the same block
1821 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1823 // opposite parity is always in the same
1824 // frame if this is second field
1825 if (!s->first_field) {
1826 ref_picture = s->current_picture_ptr->f->data;
1837 * find the lowest MB row referenced in the MVs
1839 static int lowest_referenced_row(MpegEncContext *s, int dir)
1841 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1842 int my, off, i, mvs;
1844 if (s->picture_structure != PICT_FRAME || s->mcsel)
1847 switch (s->mv_type) {
1861 for (i = 0; i < mvs; i++) {
1862 my = s->mv[dir][i][1];
1863 my_max = FFMAX(my_max, my);
1864 my_min = FFMIN(my_min, my);
1867 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1869 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1871 return s->mb_height-1;
1874 /* put block[] to dest[] */
1875 static inline void put_dct(MpegEncContext *s,
1876 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1878 s->dct_unquantize_intra(s, block, i, qscale);
1879 s->idsp.idct_put(dest, line_size, block);
1882 /* add block[] to dest[] */
1883 static inline void add_dct(MpegEncContext *s,
1884 int16_t *block, int i, uint8_t *dest, int line_size)
1886 if (s->block_last_index[i] >= 0) {
1887 s->idsp.idct_add(dest, line_size, block);
1891 static inline void add_dequant_dct(MpegEncContext *s,
1892 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1894 if (s->block_last_index[i] >= 0) {
1895 s->dct_unquantize_inter(s, block, i, qscale);
1897 s->idsp.idct_add(dest, line_size, block);
1902 * Clean dc, ac, coded_block for the current non-intra MB.
1904 void ff_clean_intra_table_entries(MpegEncContext *s)
1906 int wrap = s->b8_stride;
1907 int xy = s->block_index[0];
1910 s->dc_val[0][xy + 1 ] =
1911 s->dc_val[0][xy + wrap] =
1912 s->dc_val[0][xy + 1 + wrap] = 1024;
1914 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1915 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1916 if (s->msmpeg4_version>=3) {
1917 s->coded_block[xy ] =
1918 s->coded_block[xy + 1 ] =
1919 s->coded_block[xy + wrap] =
1920 s->coded_block[xy + 1 + wrap] = 0;
1923 wrap = s->mb_stride;
1924 xy = s->mb_x + s->mb_y * wrap;
1926 s->dc_val[2][xy] = 1024;
1928 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1929 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1931 s->mbintra_table[xy]= 0;
1934 /* generic function called after a macroblock has been parsed by the
1935 decoder or after it has been encoded by the encoder.
1937 Important variables used:
1938 s->mb_intra : true if intra macroblock
1939 s->mv_dir : motion vector direction
1940 s->mv_type : motion vector type
1941 s->mv : motion vector
1942 s->interlaced_dct : true if interlaced dct used (mpeg2)
1944 static av_always_inline
1945 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1946 int lowres_flag, int is_mpeg12)
1948 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1951 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1952 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1956 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1957 /* print DCT coefficients */
1959 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1961 for(j=0; j<64; j++){
1962 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1963 block[i][s->idsp.idct_permutation[j]]);
1965 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1969 s->current_picture.qscale_table[mb_xy] = s->qscale;
1971 /* update DC predictors for P macroblocks */
1973 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1974 if(s->mbintra_table[mb_xy])
1975 ff_clean_intra_table_entries(s);
1979 s->last_dc[2] = 128 << s->intra_dc_precision;
1982 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1983 s->mbintra_table[mb_xy]=1;
1985 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1986 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1987 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1988 uint8_t *dest_y, *dest_cb, *dest_cr;
1989 int dct_linesize, dct_offset;
1990 op_pixels_func (*op_pix)[4];
1991 qpel_mc_func (*op_qpix)[16];
1992 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1993 const int uvlinesize = s->current_picture.f->linesize[1];
1994 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1995 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1997 /* avoid copy if macroblock skipped in last frame too */
1998 /* skip only during decoding as we might trash the buffers during encoding a bit */
2000 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2002 if (s->mb_skipped) {
2004 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2006 } else if(!s->current_picture.reference) {
2009 *mbskip_ptr = 0; /* not skipped */
2013 dct_linesize = linesize << s->interlaced_dct;
2014 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2018 dest_cb= s->dest[1];
2019 dest_cr= s->dest[2];
2021 dest_y = s->sc.b_scratchpad;
2022 dest_cb= s->sc.b_scratchpad+16*linesize;
2023 dest_cr= s->sc.b_scratchpad+32*linesize;
2027 /* motion handling */
2028 /* decoding or more than one mb_type (MC was already done otherwise) */
2031 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2032 if (s->mv_dir & MV_DIR_FORWARD) {
2033 ff_thread_await_progress(&s->last_picture_ptr->tf,
2034 lowest_referenced_row(s, 0),
2037 if (s->mv_dir & MV_DIR_BACKWARD) {
2038 ff_thread_await_progress(&s->next_picture_ptr->tf,
2039 lowest_referenced_row(s, 1),
2045 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2047 if (s->mv_dir & MV_DIR_FORWARD) {
2048 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2049 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2051 if (s->mv_dir & MV_DIR_BACKWARD) {
2052 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2055 op_qpix = s->me.qpel_put;
2056 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2057 op_pix = s->hdsp.put_pixels_tab;
2059 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2061 if (s->mv_dir & MV_DIR_FORWARD) {
2062 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2063 op_pix = s->hdsp.avg_pixels_tab;
2064 op_qpix= s->me.qpel_avg;
2066 if (s->mv_dir & MV_DIR_BACKWARD) {
2067 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2072 /* skip dequant / idct if we are really late ;) */
2073 if(s->avctx->skip_idct){
2074 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2075 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2076 || s->avctx->skip_idct >= AVDISCARD_ALL)
2080 /* add dct residue */
2081 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2082 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2083 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2084 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2085 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2086 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2088 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2089 if (s->chroma_y_shift){
2090 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2091 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2095 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2096 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2097 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2098 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2101 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2102 add_dct(s, block[0], 0, dest_y , dct_linesize);
2103 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2104 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2105 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2107 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2108 if(s->chroma_y_shift){//Chroma420
2109 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2110 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2113 dct_linesize = uvlinesize << s->interlaced_dct;
2114 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2116 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2117 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2118 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2119 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2120 if(!s->chroma_x_shift){//Chroma444
2121 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2122 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2123 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2124 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2129 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2130 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2133 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2134 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2135 if (s->avctx->bits_per_raw_sample > 8){
2136 const int act_block_size = block_size * 2;
2138 if(s->dpcm_direction == 0) {
2139 s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
2140 s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2141 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
2142 s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2144 dct_linesize = uvlinesize << s->interlaced_dct;
2145 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2147 s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
2148 s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
2149 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2150 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2151 if(!s->chroma_x_shift){//Chroma444
2152 s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
2153 s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
2154 s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2155 s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2157 } else if(s->dpcm_direction == 1) {
2159 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2160 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2161 for(i = 0; i < 3; i++) {
2163 int vsub = i ? s->chroma_y_shift : 0;
2164 int hsub = i ? s->chroma_x_shift : 0;
2165 for(h = 0; h < (16 >> vsub); h++){
2166 for(w = 0; w < (16 >> hsub); w++)
2167 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2168 dest_pcm[i] += linesize[i] / 2;
2171 } else if(s->dpcm_direction == -1) {
2173 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2174 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2175 for(i = 0; i < 3; i++) {
2177 int vsub = i ? s->chroma_y_shift : 0;
2178 int hsub = i ? s->chroma_x_shift : 0;
2179 dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2180 for(h = (16 >> vsub)-1; h >= 1; h--){
2181 for(w = (16 >> hsub)-1; w >= 1; w--)
2182 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2183 dest_pcm[i] -= linesize[i] / 2;
2188 /* dct only in intra block */
2189 else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2190 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2191 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2192 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2193 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2195 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2196 if(s->chroma_y_shift){
2197 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2198 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2202 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2203 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2204 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2205 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2209 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2210 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2211 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2212 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2214 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2215 if(s->chroma_y_shift){
2216 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2217 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2220 dct_linesize = uvlinesize << s->interlaced_dct;
2221 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2223 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2224 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2225 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2226 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2227 if(!s->chroma_x_shift){//Chroma444
2228 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2229 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2230 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2231 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2239 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2240 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2241 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2242 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2248 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2251 if(s->out_format == FMT_MPEG1) {
2252 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2253 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2256 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2257 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2260 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2262 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2263 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2264 s->first_field, s->low_delay);
2267 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2268 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2269 const int uvlinesize = s->current_picture.f->linesize[1];
2270 const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2271 const int height_of_mb = 4 - s->avctx->lowres;
2273 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2274 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2275 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2276 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2277 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2278 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;
2279 //block_index is not used by mpeg2, so it is not affected by chroma_format
2281 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
2282 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2283 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2285 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2287 if(s->picture_structure==PICT_FRAME){
2288 s->dest[0] += s->mb_y * linesize << height_of_mb;
2289 s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2290 s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2292 s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
2293 s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2294 s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2295 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2300 void ff_mpeg_flush(AVCodecContext *avctx){
2302 MpegEncContext *s = avctx->priv_data;
2304 if (!s || !s->picture)
2307 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2308 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2309 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2311 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2312 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2313 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2315 s->mb_x= s->mb_y= 0;
2318 s->parse_context.state= -1;
2319 s->parse_context.frame_start_found= 0;
2320 s->parse_context.overread= 0;
2321 s->parse_context.overread_index= 0;
2322 s->parse_context.index= 0;
2323 s->parse_context.last_index= 0;
2324 s->bitstream_buffer_size=0;
2329 * set qscale and update qscale dependent variables.
2331 void ff_set_qscale(MpegEncContext * s, int qscale)
2335 else if (qscale > 31)
2339 s->chroma_qscale= s->chroma_qscale_table[qscale];
2341 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2342 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2345 void ff_mpv_report_decode_progress(MpegEncContext *s)
2347 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2348 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);