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;
369 s->sc.edge_emu_buffer =
372 s->sc.rd_scratchpad =
374 s->sc.obmc_scratchpad = NULL;
377 if (!FF_ALLOCZ_TYPED_ARRAY(s->me.map, ME_MAP_SIZE) ||
378 !FF_ALLOCZ_TYPED_ARRAY(s->me.score_map, ME_MAP_SIZE))
379 return AVERROR(ENOMEM);
381 if (s->noise_reduction) {
382 if (!FF_ALLOCZ_TYPED_ARRAY(s->dct_error_sum, 2))
383 return AVERROR(ENOMEM);
386 if (!FF_ALLOCZ_TYPED_ARRAY(s->blocks, 2))
387 return AVERROR(ENOMEM);
388 s->block = s->blocks[0];
390 for (i = 0; i < 12; i++) {
391 s->pblocks[i] = &s->block[i];
394 if (!(s->block32 = av_mallocz(sizeof(*s->block32))) ||
395 !(s->dpcm_macroblock = av_mallocz(sizeof(*s->dpcm_macroblock))))
396 return AVERROR(ENOMEM);
397 s->dpcm_direction = 0;
399 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
401 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
404 if (s->out_format == FMT_H263) {
406 if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base, yc_size))
407 return AVERROR(ENOMEM);
408 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
409 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
410 s->ac_val[2] = s->ac_val[1] + c_size;
416 static void free_duplicate_context(MpegEncContext *s)
421 av_freep(&s->sc.edge_emu_buffer);
422 av_freep(&s->me.scratchpad);
424 s->sc.rd_scratchpad =
426 s->sc.obmc_scratchpad = NULL;
428 av_freep(&s->dct_error_sum);
429 av_freep(&s->me.map);
430 av_freep(&s->me.score_map);
431 av_freep(&s->blocks);
432 av_freep(&s->block32);
433 av_freep(&s->dpcm_macroblock);
434 av_freep(&s->ac_val_base);
438 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
440 #define COPY(a) bak->a = src->a
441 COPY(sc.edge_emu_buffer);
444 COPY(sc.rd_scratchpad);
445 COPY(sc.b_scratchpad);
446 COPY(sc.obmc_scratchpad);
452 COPY(dpcm_macroblock);
453 COPY(dpcm_direction);
456 COPY(me.map_generation);
468 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
472 // FIXME copy only needed parts
473 backup_duplicate_context(&bak, dst);
474 memcpy(dst, src, sizeof(MpegEncContext));
475 backup_duplicate_context(dst, &bak);
476 for (i = 0; i < 12; i++) {
477 dst->pblocks[i] = &dst->block[i];
479 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
481 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
483 if (!dst->sc.edge_emu_buffer &&
484 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
485 &dst->sc, dst->linesize)) < 0) {
486 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
487 "scratch buffers.\n");
493 int ff_mpeg_update_thread_context(AVCodecContext *dst,
494 const AVCodecContext *src)
497 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
504 // FIXME can parameters change on I-frames?
505 // in that case dst may need a reinit
506 if (!s->context_initialized) {
508 memcpy(s, s1, sizeof(MpegEncContext));
511 s->bitstream_buffer = NULL;
512 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
514 if (s1->context_initialized){
515 // s->picture_range_start += MAX_PICTURE_COUNT;
516 // s->picture_range_end += MAX_PICTURE_COUNT;
518 if((err = ff_mpv_common_init(s)) < 0){
519 memset(s, 0, sizeof(MpegEncContext));
526 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
527 s->context_reinit = 0;
528 s->height = s1->height;
529 s->width = s1->width;
530 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
534 s->avctx->coded_height = s1->avctx->coded_height;
535 s->avctx->coded_width = s1->avctx->coded_width;
536 s->avctx->width = s1->avctx->width;
537 s->avctx->height = s1->avctx->height;
539 s->quarter_sample = s1->quarter_sample;
541 s->coded_picture_number = s1->coded_picture_number;
542 s->picture_number = s1->picture_number;
544 av_assert0(!s->picture || s->picture != s1->picture);
546 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
547 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
548 if (s1->picture && s1->picture[i].f->buf[0] &&
549 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
553 #define UPDATE_PICTURE(pic)\
555 ff_mpeg_unref_picture(s->avctx, &s->pic);\
556 if (s1->pic.f && s1->pic.f->buf[0])\
557 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
559 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
564 UPDATE_PICTURE(current_picture);
565 UPDATE_PICTURE(last_picture);
566 UPDATE_PICTURE(next_picture);
568 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
569 ((pic && pic >= old_ctx->picture && \
570 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
571 &new_ctx->picture[pic - old_ctx->picture] : NULL)
573 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
574 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
575 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
577 // Error/bug resilience
578 s->next_p_frame_damaged = s1->next_p_frame_damaged;
579 s->workaround_bugs = s1->workaround_bugs;
580 s->padding_bug_score = s1->padding_bug_score;
582 // MPEG-4 timing info
583 memcpy(&s->last_time_base, &s1->last_time_base,
584 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
585 (char *) &s1->last_time_base);
588 s->max_b_frames = s1->max_b_frames;
589 s->low_delay = s1->low_delay;
590 s->droppable = s1->droppable;
592 // DivX handling (doesn't work)
593 s->divx_packed = s1->divx_packed;
595 if (s1->bitstream_buffer) {
596 if (s1->bitstream_buffer_size +
597 AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
598 av_fast_malloc(&s->bitstream_buffer,
599 &s->allocated_bitstream_buffer_size,
600 s1->allocated_bitstream_buffer_size);
601 if (!s->bitstream_buffer) {
602 s->bitstream_buffer_size = 0;
603 return AVERROR(ENOMEM);
606 s->bitstream_buffer_size = s1->bitstream_buffer_size;
607 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
608 s1->bitstream_buffer_size);
609 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
610 AV_INPUT_BUFFER_PADDING_SIZE);
613 // linesize-dependent scratch buffer allocation
614 if (!s->sc.edge_emu_buffer)
616 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
617 &s->sc, s1->linesize) < 0) {
618 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
619 "scratch buffers.\n");
620 return AVERROR(ENOMEM);
623 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
624 "be allocated due to unknown size.\n");
627 // MPEG-2/interlacing info
628 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
629 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
631 if (!s1->first_field) {
632 s->last_pict_type = s1->pict_type;
633 if (s1->current_picture_ptr)
634 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
641 * Set the given MpegEncContext to common defaults
642 * (same for encoding and decoding).
643 * The changed fields will not depend upon the
644 * prior state of the MpegEncContext.
646 void ff_mpv_common_defaults(MpegEncContext *s)
648 s->y_dc_scale_table =
649 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
650 s->chroma_qscale_table = ff_default_chroma_qscale_table;
651 s->progressive_frame = 1;
652 s->progressive_sequence = 1;
653 s->picture_structure = PICT_FRAME;
655 s->coded_picture_number = 0;
656 s->picture_number = 0;
661 s->slice_context_count = 1;
665 * Initialize the given MpegEncContext for decoding.
666 * the changed fields will not depend upon
667 * the prior state of the MpegEncContext.
669 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
671 ff_mpv_common_defaults(s);
674 s->width = avctx->coded_width;
675 s->height = avctx->coded_height;
676 s->codec_id = avctx->codec->id;
677 s->workaround_bugs = avctx->workaround_bugs;
679 /* convert fourcc to upper case */
680 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
684 * Initialize and allocates MpegEncContext fields dependent on the resolution.
686 static int init_context_frame(MpegEncContext *s)
688 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
690 s->mb_width = (s->width + 15) / 16;
691 s->mb_stride = s->mb_width + 1;
692 s->b8_stride = s->mb_width * 2 + 1;
693 mb_array_size = s->mb_height * s->mb_stride;
694 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
696 /* set default edge pos, will be overridden
697 * in decode_header if needed */
698 s->h_edge_pos = s->mb_width * 16;
699 s->v_edge_pos = s->mb_height * 16;
701 s->mb_num = s->mb_width * s->mb_height;
706 s->block_wrap[3] = s->b8_stride;
708 s->block_wrap[5] = s->mb_stride;
710 y_size = s->b8_stride * (2 * s->mb_height + 1);
711 c_size = s->mb_stride * (s->mb_height + 1);
712 yc_size = y_size + 2 * c_size;
714 if (s->mb_height & 1)
715 yc_size += 2*s->b8_stride + 2*s->mb_stride;
717 if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_index2xy, s->mb_num + 1))
718 return AVERROR(ENOMEM);
719 for (y = 0; y < s->mb_height; y++)
720 for (x = 0; x < s->mb_width; x++)
721 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
723 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
726 /* Allocate MV tables */
727 if (!FF_ALLOCZ_TYPED_ARRAY(s->p_mv_table_base, mv_table_size) ||
728 !FF_ALLOCZ_TYPED_ARRAY(s->b_forw_mv_table_base, mv_table_size) ||
729 !FF_ALLOCZ_TYPED_ARRAY(s->b_back_mv_table_base, mv_table_size) ||
730 !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_forw_mv_table_base, mv_table_size) ||
731 !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_back_mv_table_base, mv_table_size) ||
732 !FF_ALLOCZ_TYPED_ARRAY(s->b_direct_mv_table_base, mv_table_size))
733 return AVERROR(ENOMEM);
734 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
735 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
736 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
737 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
738 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
739 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
741 /* Allocate MB type table */
742 if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_type, mb_array_size) ||
743 !FF_ALLOCZ_TYPED_ARRAY(s->lambda_table, mb_array_size) ||
744 !FF_ALLOC_TYPED_ARRAY (s->cplx_tab, mb_array_size) ||
745 !FF_ALLOC_TYPED_ARRAY (s->bits_tab, mb_array_size))
746 return AVERROR(ENOMEM);
749 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
750 (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
751 /* interlaced direct mode decoding tables */
752 for (i = 0; i < 2; i++) {
754 for (j = 0; j < 2; j++) {
755 for (k = 0; k < 2; k++) {
756 if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_mv_table_base[i][j][k], mv_table_size))
757 return AVERROR(ENOMEM);
758 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
761 if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_select_table [i][j], mv_table_size * 2) ||
762 !FF_ALLOCZ_TYPED_ARRAY(s->p_field_mv_table_base[i][j], mv_table_size))
763 return AVERROR(ENOMEM);
764 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
766 if (!FF_ALLOCZ_TYPED_ARRAY(s->p_field_select_table[i], mv_table_size * 2))
767 return AVERROR(ENOMEM);
770 if (s->out_format == FMT_H263) {
771 /* cbp values, cbp, ac_pred, pred_dir */
772 if (!FF_ALLOCZ_TYPED_ARRAY(s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride) ||
773 !FF_ALLOCZ_TYPED_ARRAY(s->cbp_table, mb_array_size) ||
774 !FF_ALLOCZ_TYPED_ARRAY(s->pred_dir_table, mb_array_size))
775 return AVERROR(ENOMEM);
776 s->coded_block = s->coded_block_base + s->b8_stride + 1;
779 if (s->h263_pred || s->h263_plus || !s->encoding) {
781 // MN: we need these for error resilience of intra-frames
782 if (!FF_ALLOCZ_TYPED_ARRAY(s->dc_val_base, yc_size))
783 return AVERROR(ENOMEM);
784 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
785 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
786 s->dc_val[2] = s->dc_val[1] + c_size;
787 for (i = 0; i < yc_size; i++)
788 s->dc_val_base[i] = 1024;
791 /* which mb is an intra block, init macroblock skip table */
792 if (!FF_ALLOC_TYPED_ARRAY(s->mbintra_table, mb_array_size) ||
793 // Note the + 1 is for a quicker MPEG-4 slice_end detection
794 !FF_ALLOCZ_TYPED_ARRAY(s->mbskip_table, mb_array_size + 2))
795 return AVERROR(ENOMEM);
796 memset(s->mbintra_table, 1, mb_array_size);
798 return ff_mpeg_er_init(s);
801 static void clear_context(MpegEncContext *s)
805 memset(&s->next_picture, 0, sizeof(s->next_picture));
806 memset(&s->last_picture, 0, sizeof(s->last_picture));
807 memset(&s->current_picture, 0, sizeof(s->current_picture));
808 memset(&s->new_picture, 0, sizeof(s->new_picture));
810 memset(s->thread_context, 0, sizeof(s->thread_context));
813 s->me.score_map = NULL;
814 s->dct_error_sum = NULL;
818 memset(s->pblocks, 0, sizeof(s->pblocks));
819 s->dpcm_direction = 0;
820 s->dpcm_macroblock = NULL;
821 s->ac_val_base = NULL;
825 s->sc.edge_emu_buffer = NULL;
826 s->me.scratchpad = NULL;
828 s->sc.rd_scratchpad =
830 s->sc.obmc_scratchpad = NULL;
833 s->bitstream_buffer = NULL;
834 s->allocated_bitstream_buffer_size = 0;
837 s->p_mv_table_base = NULL;
838 s->b_forw_mv_table_base = NULL;
839 s->b_back_mv_table_base = NULL;
840 s->b_bidir_forw_mv_table_base = NULL;
841 s->b_bidir_back_mv_table_base = NULL;
842 s->b_direct_mv_table_base = NULL;
843 s->p_mv_table = NULL;
844 s->b_forw_mv_table = NULL;
845 s->b_back_mv_table = NULL;
846 s->b_bidir_forw_mv_table = NULL;
847 s->b_bidir_back_mv_table = NULL;
848 s->b_direct_mv_table = NULL;
849 for (i = 0; i < 2; i++) {
850 for (j = 0; j < 2; j++) {
851 for (k = 0; k < 2; k++) {
852 s->b_field_mv_table_base[i][j][k] = NULL;
853 s->b_field_mv_table[i][j][k] = NULL;
855 s->b_field_select_table[i][j] = NULL;
856 s->p_field_mv_table_base[i][j] = NULL;
857 s->p_field_mv_table[i][j] = NULL;
859 s->p_field_select_table[i] = NULL;
862 s->dc_val_base = NULL;
863 s->coded_block_base = NULL;
864 s->mbintra_table = NULL;
866 s->pred_dir_table = NULL;
868 s->mbskip_table = NULL;
870 s->er.error_status_table = NULL;
871 s->er.er_temp_buffer = NULL;
872 s->mb_index2xy = NULL;
873 s->lambda_table = NULL;
880 * init common structure for both encoder and decoder.
881 * this assumes that some variables like width/height are already set
883 av_cold int ff_mpv_common_init(MpegEncContext *s)
886 int nb_slices = (HAVE_THREADS &&
887 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
888 s->avctx->thread_count : 1;
892 if (s->encoding && s->avctx->slices)
893 nb_slices = s->avctx->slices;
895 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
896 s->mb_height = (s->height + 31) / 32 * 2;
898 s->mb_height = (s->height + 15) / 16;
900 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
901 av_log(s->avctx, AV_LOG_ERROR,
902 "decoding to AV_PIX_FMT_NONE is not supported.\n");
903 return AVERROR(EINVAL);
906 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
909 max_slices = FFMIN(MAX_THREADS, s->mb_height);
911 max_slices = MAX_THREADS;
912 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
913 " reducing to %d\n", nb_slices, max_slices);
914 nb_slices = max_slices;
917 if ((s->width || s->height) &&
918 av_image_check_size(s->width, s->height, 0, s->avctx))
919 return AVERROR(EINVAL);
923 /* set chroma shifts */
924 ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
930 if (!FF_ALLOCZ_TYPED_ARRAY(s->picture, MAX_PICTURE_COUNT))
931 return AVERROR(ENOMEM);
932 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
933 s->picture[i].f = av_frame_alloc();
934 if (!s->picture[i].f)
938 if (!(s->next_picture.f = av_frame_alloc()) ||
939 !(s->last_picture.f = av_frame_alloc()) ||
940 !(s->current_picture.f = av_frame_alloc()) ||
941 !(s->new_picture.f = av_frame_alloc()))
944 if ((ret = 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 ((ret = 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 ((ret = init_duplicate_context(s)) < 0)
972 s->end_mb_y = s->mb_height;
974 s->slice_context_count = nb_slices;
979 ret = AVERROR(ENOMEM);
981 ff_mpv_common_end(s);
986 * Frees and resets MpegEncContext fields depending on the resolution.
987 * Is used during resolution changes to avoid a full reinitialization of the
990 static void free_context_frame(MpegEncContext *s)
994 av_freep(&s->mb_type);
995 av_freep(&s->p_mv_table_base);
996 av_freep(&s->b_forw_mv_table_base);
997 av_freep(&s->b_back_mv_table_base);
998 av_freep(&s->b_bidir_forw_mv_table_base);
999 av_freep(&s->b_bidir_back_mv_table_base);
1000 av_freep(&s->b_direct_mv_table_base);
1001 s->p_mv_table = NULL;
1002 s->b_forw_mv_table = NULL;
1003 s->b_back_mv_table = NULL;
1004 s->b_bidir_forw_mv_table = NULL;
1005 s->b_bidir_back_mv_table = NULL;
1006 s->b_direct_mv_table = NULL;
1007 for (i = 0; i < 2; i++) {
1008 for (j = 0; j < 2; j++) {
1009 for (k = 0; k < 2; k++) {
1010 av_freep(&s->b_field_mv_table_base[i][j][k]);
1011 s->b_field_mv_table[i][j][k] = NULL;
1013 av_freep(&s->b_field_select_table[i][j]);
1014 av_freep(&s->p_field_mv_table_base[i][j]);
1015 s->p_field_mv_table[i][j] = NULL;
1017 av_freep(&s->p_field_select_table[i]);
1020 av_freep(&s->dc_val_base);
1021 av_freep(&s->coded_block_base);
1022 av_freep(&s->mbintra_table);
1023 av_freep(&s->cbp_table);
1024 av_freep(&s->pred_dir_table);
1026 av_freep(&s->mbskip_table);
1028 av_freep(&s->er.error_status_table);
1029 av_freep(&s->er.er_temp_buffer);
1030 av_freep(&s->mb_index2xy);
1031 av_freep(&s->lambda_table);
1033 av_freep(&s->cplx_tab);
1034 av_freep(&s->bits_tab);
1036 s->linesize = s->uvlinesize = 0;
1039 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1043 if (!s->context_initialized)
1044 return AVERROR(EINVAL);
1046 if (s->slice_context_count > 1) {
1047 for (i = 0; i < s->slice_context_count; i++) {
1048 free_duplicate_context(s->thread_context[i]);
1050 for (i = 1; i < s->slice_context_count; i++) {
1051 av_freep(&s->thread_context[i]);
1054 free_duplicate_context(s);
1056 free_context_frame(s);
1059 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1060 s->picture[i].needs_realloc = 1;
1063 s->last_picture_ptr =
1064 s->next_picture_ptr =
1065 s->current_picture_ptr = NULL;
1068 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1069 s->mb_height = (s->height + 31) / 32 * 2;
1071 s->mb_height = (s->height + 15) / 16;
1073 if ((s->width || s->height) &&
1074 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1077 /* set chroma shifts */
1078 err = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1080 &s->chroma_y_shift);
1084 if ((err = init_context_frame(s)))
1087 memset(s->thread_context, 0, sizeof(s->thread_context));
1088 s->thread_context[0] = s;
1090 if (s->width && s->height) {
1091 int nb_slices = s->slice_context_count;
1092 if (nb_slices > 1) {
1093 for (i = 0; i < nb_slices; i++) {
1095 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1096 if (!s->thread_context[i]) {
1097 err = AVERROR(ENOMEM);
1101 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1103 s->thread_context[i]->start_mb_y =
1104 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1105 s->thread_context[i]->end_mb_y =
1106 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1109 err = init_duplicate_context(s);
1113 s->end_mb_y = s->mb_height;
1115 s->slice_context_count = nb_slices;
1120 ff_mpv_common_end(s);
1124 /* init common structure for both encoder and decoder */
1125 void ff_mpv_common_end(MpegEncContext *s)
1132 if (s->slice_context_count > 1) {
1133 for (i = 0; i < s->slice_context_count; i++) {
1134 free_duplicate_context(s->thread_context[i]);
1136 for (i = 1; i < s->slice_context_count; i++) {
1137 av_freep(&s->thread_context[i]);
1139 s->slice_context_count = 1;
1140 } else free_duplicate_context(s);
1142 av_freep(&s->parse_context.buffer);
1143 s->parse_context.buffer_size = 0;
1145 av_freep(&s->bitstream_buffer);
1146 s->allocated_bitstream_buffer_size = 0;
1152 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1153 ff_free_picture_tables(&s->picture[i]);
1154 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1155 av_frame_free(&s->picture[i].f);
1158 av_freep(&s->picture);
1159 ff_free_picture_tables(&s->last_picture);
1160 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1161 av_frame_free(&s->last_picture.f);
1162 ff_free_picture_tables(&s->current_picture);
1163 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1164 av_frame_free(&s->current_picture.f);
1165 ff_free_picture_tables(&s->next_picture);
1166 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1167 av_frame_free(&s->next_picture.f);
1168 ff_free_picture_tables(&s->new_picture);
1169 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1170 av_frame_free(&s->new_picture.f);
1172 free_context_frame(s);
1174 s->context_initialized = 0;
1175 s->last_picture_ptr =
1176 s->next_picture_ptr =
1177 s->current_picture_ptr = NULL;
1178 s->linesize = s->uvlinesize = 0;
1182 static void gray_frame(AVFrame *frame)
1184 int i, h_chroma_shift, v_chroma_shift;
1186 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1188 for(i=0; i<frame->height; i++)
1189 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1190 for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1191 memset(frame->data[1] + frame->linesize[1]*i,
1192 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1193 memset(frame->data[2] + frame->linesize[2]*i,
1194 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1199 * generic function called after decoding
1200 * the header and before a frame is decoded.
1202 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1208 if (!ff_thread_can_start_frame(avctx)) {
1209 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1213 /* mark & release old frames */
1214 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1215 s->last_picture_ptr != s->next_picture_ptr &&
1216 s->last_picture_ptr->f->buf[0]) {
1217 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1220 /* release forgotten pictures */
1221 /* if (MPEG-124 / H.263) */
1222 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1223 if (&s->picture[i] != s->last_picture_ptr &&
1224 &s->picture[i] != s->next_picture_ptr &&
1225 s->picture[i].reference && !s->picture[i].needs_realloc) {
1226 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1230 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1231 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1232 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1234 /* release non reference frames */
1235 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1236 if (!s->picture[i].reference)
1237 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1240 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1241 // we already have an unused image
1242 // (maybe it was set before reading the header)
1243 pic = s->current_picture_ptr;
1245 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1247 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1250 pic = &s->picture[i];
1254 if (!s->droppable) {
1255 if (s->pict_type != AV_PICTURE_TYPE_B)
1259 pic->f->coded_picture_number = s->coded_picture_number++;
1261 if (alloc_picture(s, pic) < 0)
1264 s->current_picture_ptr = pic;
1265 // FIXME use only the vars from current_pic
1266 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1267 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1268 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1269 if (s->picture_structure != PICT_FRAME)
1270 s->current_picture_ptr->f->top_field_first =
1271 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1273 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1274 !s->progressive_sequence;
1275 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1277 s->current_picture_ptr->f->pict_type = s->pict_type;
1278 // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1279 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1280 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1282 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1283 s->current_picture_ptr)) < 0)
1286 if (s->pict_type != AV_PICTURE_TYPE_B) {
1287 s->last_picture_ptr = s->next_picture_ptr;
1289 s->next_picture_ptr = s->current_picture_ptr;
1291 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1292 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1293 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1294 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1295 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1296 s->pict_type, s->droppable);
1298 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1299 (s->pict_type != AV_PICTURE_TYPE_I)) {
1300 int h_chroma_shift, v_chroma_shift;
1301 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1302 &h_chroma_shift, &v_chroma_shift);
1303 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1304 av_log(avctx, AV_LOG_DEBUG,
1305 "allocating dummy last picture for B frame\n");
1306 else if (s->pict_type != AV_PICTURE_TYPE_I)
1307 av_log(avctx, AV_LOG_ERROR,
1308 "warning: first frame is no keyframe\n");
1310 /* Allocate a dummy frame */
1311 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1313 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1316 s->last_picture_ptr = &s->picture[i];
1318 s->last_picture_ptr->reference = 3;
1319 s->last_picture_ptr->f->key_frame = 0;
1320 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1322 if (alloc_picture(s, s->last_picture_ptr) < 0) {
1323 s->last_picture_ptr = NULL;
1327 if (!avctx->hwaccel) {
1328 for(i=0; i<avctx->height; i++)
1329 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1330 0x80, avctx->width);
1331 if (s->last_picture_ptr->f->data[2]) {
1332 for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1333 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1334 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1335 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1336 0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1340 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1341 for(i=0; i<avctx->height; i++)
1342 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1346 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1347 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1349 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1350 s->pict_type == AV_PICTURE_TYPE_B) {
1351 /* Allocate a dummy frame */
1352 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1354 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1357 s->next_picture_ptr = &s->picture[i];
1359 s->next_picture_ptr->reference = 3;
1360 s->next_picture_ptr->f->key_frame = 0;
1361 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1363 if (alloc_picture(s, s->next_picture_ptr) < 0) {
1364 s->next_picture_ptr = NULL;
1367 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1368 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1371 #if 0 // BUFREF-FIXME
1372 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1373 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1375 if (s->last_picture_ptr) {
1376 if (s->last_picture_ptr->f->buf[0] &&
1377 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1378 s->last_picture_ptr)) < 0)
1381 if (s->next_picture_ptr) {
1382 if (s->next_picture_ptr->f->buf[0] &&
1383 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1384 s->next_picture_ptr)) < 0)
1388 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1389 s->last_picture_ptr->f->buf[0]));
1391 if (s->picture_structure!= PICT_FRAME) {
1393 for (i = 0; i < 4; i++) {
1394 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1395 s->current_picture.f->data[i] +=
1396 s->current_picture.f->linesize[i];
1398 s->current_picture.f->linesize[i] *= 2;
1399 s->last_picture.f->linesize[i] *= 2;
1400 s->next_picture.f->linesize[i] *= 2;
1404 /* set dequantizer, we can't do it during init as
1405 * it might change for MPEG-4 and we can't do it in the header
1406 * decode as init is not called for MPEG-4 there yet */
1407 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1408 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1409 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1410 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1411 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1412 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1414 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1415 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1418 if (s->avctx->debug & FF_DEBUG_NOMC) {
1419 gray_frame(s->current_picture_ptr->f);
1425 /* called after a frame has been decoded. */
1426 void ff_mpv_frame_end(MpegEncContext *s)
1430 if (s->current_picture.reference)
1431 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1434 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1436 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1437 p->qscale_table, p->motion_val, &s->low_delay,
1438 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1441 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1443 AVVideoEncParams *par;
1444 int mult = (qp_type == FF_QSCALE_TYPE_MPEG1) ? 2 : 1;
1445 unsigned int nb_mb = p->alloc_mb_height * p->alloc_mb_width;
1448 if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS))
1451 par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_MPEG2, nb_mb);
1453 return AVERROR(ENOMEM);
1455 for (y = 0; y < p->alloc_mb_height; y++)
1456 for (x = 0; x < p->alloc_mb_width; x++) {
1457 const unsigned int block_idx = y * p->alloc_mb_width + x;
1458 const unsigned int mb_xy = y * p->alloc_mb_stride + x;
1459 AVVideoBlockParams *b = av_video_enc_params_block(par, block_idx);
1466 b->delta_qp = p->qscale_table[mb_xy] * mult;
1472 static inline int hpel_motion_lowres(MpegEncContext *s,
1473 uint8_t *dest, uint8_t *src,
1474 int field_based, int field_select,
1475 int src_x, int src_y,
1476 int width, int height, ptrdiff_t stride,
1477 int h_edge_pos, int v_edge_pos,
1478 int w, int h, h264_chroma_mc_func *pix_op,
1479 int motion_x, int motion_y)
1481 const int lowres = s->avctx->lowres;
1482 const int op_index = FFMIN(lowres, 3);
1483 const int s_mask = (2 << lowres) - 1;
1487 if (s->quarter_sample) {
1492 sx = motion_x & s_mask;
1493 sy = motion_y & s_mask;
1494 src_x += motion_x >> lowres + 1;
1495 src_y += motion_y >> lowres + 1;
1497 src += src_y * stride + src_x;
1499 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1500 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1501 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1502 s->linesize, s->linesize,
1503 w + 1, (h + 1) << field_based,
1504 src_x, src_y << field_based,
1505 h_edge_pos, v_edge_pos);
1506 src = s->sc.edge_emu_buffer;
1510 sx = (sx << 2) >> lowres;
1511 sy = (sy << 2) >> lowres;
1514 pix_op[op_index](dest, src, stride, h, sx, sy);
1518 /* apply one mpeg motion vector to the three components */
1519 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1526 uint8_t **ref_picture,
1527 h264_chroma_mc_func *pix_op,
1528 int motion_x, int motion_y,
1531 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1532 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1533 ptrdiff_t uvlinesize, linesize;
1534 const int lowres = s->avctx->lowres;
1535 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
1536 const int block_s = 8>>lowres;
1537 const int s_mask = (2 << lowres) - 1;
1538 const int h_edge_pos = s->h_edge_pos >> lowres;
1539 const int v_edge_pos = s->v_edge_pos >> lowres;
1540 linesize = s->current_picture.f->linesize[0] << field_based;
1541 uvlinesize = s->current_picture.f->linesize[1] << field_based;
1543 // FIXME obviously not perfect but qpel will not work in lowres anyway
1544 if (s->quarter_sample) {
1550 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1553 sx = motion_x & s_mask;
1554 sy = motion_y & s_mask;
1555 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1556 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1558 if (s->out_format == FMT_H263) {
1559 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
1560 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
1561 uvsrc_x = src_x >> 1;
1562 uvsrc_y = src_y >> 1;
1563 } else if (s->out_format == FMT_H261) {
1564 // even chroma mv's are full pel in H261
1567 uvsx = (2 * mx) & s_mask;
1568 uvsy = (2 * my) & s_mask;
1569 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1570 uvsrc_y = mb_y * block_s + (my >> lowres);
1572 if(s->chroma_y_shift){
1577 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
1578 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
1580 if(s->chroma_x_shift){
1584 uvsy = motion_y & s_mask;
1586 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
1589 uvsx = motion_x & s_mask;
1590 uvsy = motion_y & s_mask;
1597 ptr_y = ref_picture[0] + src_y * linesize + src_x;
1598 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1599 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1601 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
1602 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1603 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1604 linesize >> field_based, linesize >> field_based,
1605 17, 17 + field_based,
1606 src_x, src_y << field_based, h_edge_pos,
1608 ptr_y = s->sc.edge_emu_buffer;
1609 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1610 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1611 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1612 if (s->workaround_bugs & FF_BUG_IEDGE)
1613 vbuf -= s->uvlinesize;
1614 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
1615 uvlinesize >> field_based, uvlinesize >> field_based,
1617 uvsrc_x, uvsrc_y << field_based,
1618 h_edge_pos >> 1, v_edge_pos >> 1);
1619 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
1620 uvlinesize >> field_based,uvlinesize >> field_based,
1622 uvsrc_x, uvsrc_y << field_based,
1623 h_edge_pos >> 1, v_edge_pos >> 1);
1629 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1631 dest_y += s->linesize;
1632 dest_cb += s->uvlinesize;
1633 dest_cr += s->uvlinesize;
1637 ptr_y += s->linesize;
1638 ptr_cb += s->uvlinesize;
1639 ptr_cr += s->uvlinesize;
1642 sx = (sx << 2) >> lowres;
1643 sy = (sy << 2) >> lowres;
1644 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1646 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1647 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1648 uvsx = (uvsx << 2) >> lowres;
1649 uvsy = (uvsy << 2) >> lowres;
1651 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1652 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1655 // FIXME h261 lowres loop filter
1658 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1659 uint8_t *dest_cb, uint8_t *dest_cr,
1660 uint8_t **ref_picture,
1661 h264_chroma_mc_func * pix_op,
1664 const int lowres = s->avctx->lowres;
1665 const int op_index = FFMIN(lowres, 3);
1666 const int block_s = 8 >> lowres;
1667 const int s_mask = (2 << lowres) - 1;
1668 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1669 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1670 int emu = 0, src_x, src_y, sx, sy;
1674 if (s->quarter_sample) {
1679 /* In case of 8X8, we construct a single chroma motion vector
1680 with a special rounding */
1681 mx = ff_h263_round_chroma(mx);
1682 my = ff_h263_round_chroma(my);
1686 src_x = s->mb_x * block_s + (mx >> lowres + 1);
1687 src_y = s->mb_y * block_s + (my >> lowres + 1);
1689 offset = src_y * s->uvlinesize + src_x;
1690 ptr = ref_picture[1] + offset;
1691 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1692 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1693 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1694 s->uvlinesize, s->uvlinesize,
1696 src_x, src_y, h_edge_pos, v_edge_pos);
1697 ptr = s->sc.edge_emu_buffer;
1700 sx = (sx << 2) >> lowres;
1701 sy = (sy << 2) >> lowres;
1702 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1704 ptr = ref_picture[2] + offset;
1706 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1707 s->uvlinesize, s->uvlinesize,
1709 src_x, src_y, h_edge_pos, v_edge_pos);
1710 ptr = s->sc.edge_emu_buffer;
1712 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1716 * motion compensation of a single macroblock
1718 * @param dest_y luma destination pointer
1719 * @param dest_cb chroma cb/u destination pointer
1720 * @param dest_cr chroma cr/v destination pointer
1721 * @param dir direction (0->forward, 1->backward)
1722 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1723 * @param pix_op halfpel motion compensation function (average or put normally)
1724 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1726 static inline void MPV_motion_lowres(MpegEncContext *s,
1727 uint8_t *dest_y, uint8_t *dest_cb,
1729 int dir, uint8_t **ref_picture,
1730 h264_chroma_mc_func *pix_op)
1734 const int lowres = s->avctx->lowres;
1735 const int block_s = 8 >>lowres;
1740 switch (s->mv_type) {
1742 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1744 ref_picture, pix_op,
1745 s->mv[dir][0][0], s->mv[dir][0][1],
1751 for (i = 0; i < 4; i++) {
1752 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1753 s->linesize) * block_s,
1754 ref_picture[0], 0, 0,
1755 (2 * mb_x + (i & 1)) * block_s,
1756 (2 * mb_y + (i >> 1)) * block_s,
1757 s->width, s->height, s->linesize,
1758 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1759 block_s, block_s, pix_op,
1760 s->mv[dir][i][0], s->mv[dir][i][1]);
1762 mx += s->mv[dir][i][0];
1763 my += s->mv[dir][i][1];
1766 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1767 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1771 if (s->picture_structure == PICT_FRAME) {
1773 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1774 1, 0, s->field_select[dir][0],
1775 ref_picture, pix_op,
1776 s->mv[dir][0][0], s->mv[dir][0][1],
1779 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1780 1, 1, s->field_select[dir][1],
1781 ref_picture, pix_op,
1782 s->mv[dir][1][0], s->mv[dir][1][1],
1785 if (s->picture_structure != s->field_select[dir][0] + 1 &&
1786 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1787 ref_picture = s->current_picture_ptr->f->data;
1790 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1791 0, 0, s->field_select[dir][0],
1792 ref_picture, pix_op,
1794 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1798 for (i = 0; i < 2; i++) {
1799 uint8_t **ref2picture;
1801 if (s->picture_structure == s->field_select[dir][i] + 1 ||
1802 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1803 ref2picture = ref_picture;
1805 ref2picture = s->current_picture_ptr->f->data;
1808 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1809 0, 0, s->field_select[dir][i],
1810 ref2picture, pix_op,
1811 s->mv[dir][i][0], s->mv[dir][i][1] +
1812 2 * block_s * i, block_s, mb_y >> 1);
1814 dest_y += 2 * block_s * s->linesize;
1815 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1816 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1820 if (s->picture_structure == PICT_FRAME) {
1821 for (i = 0; i < 2; i++) {
1823 for (j = 0; j < 2; j++) {
1824 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1826 ref_picture, pix_op,
1827 s->mv[dir][2 * i + j][0],
1828 s->mv[dir][2 * i + j][1],
1831 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1834 for (i = 0; i < 2; i++) {
1835 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1836 0, 0, s->picture_structure != i + 1,
1837 ref_picture, pix_op,
1838 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1839 2 * block_s, mb_y >> 1);
1841 // after put we make avg of the same block
1842 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1844 // opposite parity is always in the same
1845 // frame if this is second field
1846 if (!s->first_field) {
1847 ref_picture = s->current_picture_ptr->f->data;
1858 * find the lowest MB row referenced in the MVs
1860 static int lowest_referenced_row(MpegEncContext *s, int dir)
1862 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1863 int my, off, i, mvs;
1865 if (s->picture_structure != PICT_FRAME || s->mcsel)
1868 switch (s->mv_type) {
1882 for (i = 0; i < mvs; i++) {
1883 my = s->mv[dir][i][1];
1884 my_max = FFMAX(my_max, my);
1885 my_min = FFMIN(my_min, my);
1888 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1890 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1892 return s->mb_height-1;
1895 /* put block[] to dest[] */
1896 static inline void put_dct(MpegEncContext *s,
1897 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1899 s->dct_unquantize_intra(s, block, i, qscale);
1900 s->idsp.idct_put(dest, line_size, block);
1903 /* add block[] to dest[] */
1904 static inline void add_dct(MpegEncContext *s,
1905 int16_t *block, int i, uint8_t *dest, int line_size)
1907 if (s->block_last_index[i] >= 0) {
1908 s->idsp.idct_add(dest, line_size, block);
1912 static inline void add_dequant_dct(MpegEncContext *s,
1913 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1915 if (s->block_last_index[i] >= 0) {
1916 s->dct_unquantize_inter(s, block, i, qscale);
1918 s->idsp.idct_add(dest, line_size, block);
1923 * Clean dc, ac, coded_block for the current non-intra MB.
1925 void ff_clean_intra_table_entries(MpegEncContext *s)
1927 int wrap = s->b8_stride;
1928 int xy = s->block_index[0];
1931 s->dc_val[0][xy + 1 ] =
1932 s->dc_val[0][xy + wrap] =
1933 s->dc_val[0][xy + 1 + wrap] = 1024;
1935 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1936 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1937 if (s->msmpeg4_version>=3) {
1938 s->coded_block[xy ] =
1939 s->coded_block[xy + 1 ] =
1940 s->coded_block[xy + wrap] =
1941 s->coded_block[xy + 1 + wrap] = 0;
1944 wrap = s->mb_stride;
1945 xy = s->mb_x + s->mb_y * wrap;
1947 s->dc_val[2][xy] = 1024;
1949 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1950 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1952 s->mbintra_table[xy]= 0;
1955 /* generic function called after a macroblock has been parsed by the
1956 decoder or after it has been encoded by the encoder.
1958 Important variables used:
1959 s->mb_intra : true if intra macroblock
1960 s->mv_dir : motion vector direction
1961 s->mv_type : motion vector type
1962 s->mv : motion vector
1963 s->interlaced_dct : true if interlaced dct used (mpeg2)
1965 static av_always_inline
1966 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1967 int lowres_flag, int is_mpeg12)
1969 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1972 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1973 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1977 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1978 /* print DCT coefficients */
1980 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1982 for(j=0; j<64; j++){
1983 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1984 block[i][s->idsp.idct_permutation[j]]);
1986 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1990 s->current_picture.qscale_table[mb_xy] = s->qscale;
1992 /* update DC predictors for P macroblocks */
1994 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1995 if(s->mbintra_table[mb_xy])
1996 ff_clean_intra_table_entries(s);
2000 s->last_dc[2] = 128 << s->intra_dc_precision;
2003 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2004 s->mbintra_table[mb_xy]=1;
2006 if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
2007 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2008 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2009 uint8_t *dest_y, *dest_cb, *dest_cr;
2010 int dct_linesize, dct_offset;
2011 op_pixels_func (*op_pix)[4];
2012 qpel_mc_func (*op_qpix)[16];
2013 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2014 const int uvlinesize = s->current_picture.f->linesize[1];
2015 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2016 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2018 /* avoid copy if macroblock skipped in last frame too */
2019 /* skip only during decoding as we might trash the buffers during encoding a bit */
2021 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2023 if (s->mb_skipped) {
2025 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2027 } else if(!s->current_picture.reference) {
2030 *mbskip_ptr = 0; /* not skipped */
2034 dct_linesize = linesize << s->interlaced_dct;
2035 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2039 dest_cb= s->dest[1];
2040 dest_cr= s->dest[2];
2042 dest_y = s->sc.b_scratchpad;
2043 dest_cb= s->sc.b_scratchpad+16*linesize;
2044 dest_cr= s->sc.b_scratchpad+32*linesize;
2048 /* motion handling */
2049 /* decoding or more than one mb_type (MC was already done otherwise) */
2052 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2053 if (s->mv_dir & MV_DIR_FORWARD) {
2054 ff_thread_await_progress(&s->last_picture_ptr->tf,
2055 lowest_referenced_row(s, 0),
2058 if (s->mv_dir & MV_DIR_BACKWARD) {
2059 ff_thread_await_progress(&s->next_picture_ptr->tf,
2060 lowest_referenced_row(s, 1),
2066 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2068 if (s->mv_dir & MV_DIR_FORWARD) {
2069 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2070 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2072 if (s->mv_dir & MV_DIR_BACKWARD) {
2073 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2076 op_qpix = s->me.qpel_put;
2077 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2078 op_pix = s->hdsp.put_pixels_tab;
2080 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2082 if (s->mv_dir & MV_DIR_FORWARD) {
2083 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2084 op_pix = s->hdsp.avg_pixels_tab;
2085 op_qpix= s->me.qpel_avg;
2087 if (s->mv_dir & MV_DIR_BACKWARD) {
2088 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2093 /* skip dequant / idct if we are really late ;) */
2094 if(s->avctx->skip_idct){
2095 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2096 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2097 || s->avctx->skip_idct >= AVDISCARD_ALL)
2101 /* add dct residue */
2102 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2103 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2104 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2105 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2106 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2107 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2109 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2110 if (s->chroma_y_shift){
2111 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2112 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2116 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2117 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2118 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2119 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2122 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2123 add_dct(s, block[0], 0, dest_y , dct_linesize);
2124 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2125 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2126 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2128 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2129 if(s->chroma_y_shift){//Chroma420
2130 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2131 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2134 dct_linesize = uvlinesize << s->interlaced_dct;
2135 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2137 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2138 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2139 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2140 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2141 if(!s->chroma_x_shift){//Chroma444
2142 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2143 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2144 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2145 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2150 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2151 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2154 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2155 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2156 if (s->avctx->bits_per_raw_sample > 8){
2157 const int act_block_size = block_size * 2;
2159 if(s->dpcm_direction == 0) {
2160 s->idsp.idct_put(dest_y, dct_linesize, (int16_t*)(*s->block32)[0]);
2161 s->idsp.idct_put(dest_y + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2162 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, (int16_t*)(*s->block32)[2]);
2163 s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2165 dct_linesize = uvlinesize << s->interlaced_dct;
2166 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2168 s->idsp.idct_put(dest_cb, dct_linesize, (int16_t*)(*s->block32)[4]);
2169 s->idsp.idct_put(dest_cr, dct_linesize, (int16_t*)(*s->block32)[5]);
2170 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2171 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2172 if(!s->chroma_x_shift){//Chroma444
2173 s->idsp.idct_put(dest_cb + act_block_size, dct_linesize, (int16_t*)(*s->block32)[8]);
2174 s->idsp.idct_put(dest_cr + act_block_size, dct_linesize, (int16_t*)(*s->block32)[9]);
2175 s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2176 s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2178 } else if(s->dpcm_direction == 1) {
2180 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2181 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2182 for(i = 0; i < 3; i++) {
2184 int vsub = i ? s->chroma_y_shift : 0;
2185 int hsub = i ? s->chroma_x_shift : 0;
2186 for(h = 0; h < (16 >> vsub); h++){
2187 for(w = 0; w < (16 >> hsub); w++)
2188 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2189 dest_pcm[i] += linesize[i] / 2;
2192 } else if(s->dpcm_direction == -1) {
2194 uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2195 int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2196 for(i = 0; i < 3; i++) {
2198 int vsub = i ? s->chroma_y_shift : 0;
2199 int hsub = i ? s->chroma_x_shift : 0;
2200 dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2201 for(h = (16 >> vsub)-1; h >= 1; h--){
2202 for(w = (16 >> hsub)-1; w >= 1; w--)
2203 dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2204 dest_pcm[i] -= linesize[i] / 2;
2209 /* dct only in intra block */
2210 else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2211 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2212 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2213 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2214 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2216 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2217 if(s->chroma_y_shift){
2218 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2219 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2223 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2224 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2225 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2226 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2230 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2231 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2232 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2233 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2235 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2236 if(s->chroma_y_shift){
2237 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2238 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2241 dct_linesize = uvlinesize << s->interlaced_dct;
2242 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2244 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2245 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2246 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2247 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2248 if(!s->chroma_x_shift){//Chroma444
2249 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2250 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2251 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2252 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2260 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2261 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2262 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2263 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2269 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2272 if(s->out_format == FMT_MPEG1) {
2273 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2274 else mpv_reconstruct_mb_internal(s, block, 0, 1);
2277 if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2278 else mpv_reconstruct_mb_internal(s, block, 0, 0);
2281 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2283 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2284 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2285 s->first_field, s->low_delay);
2288 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2289 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2290 const int uvlinesize = s->current_picture.f->linesize[1];
2291 const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2292 const int height_of_mb = 4 - s->avctx->lowres;
2294 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2295 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2296 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2297 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2298 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2299 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;
2300 //block_index is not used by mpeg2, so it is not affected by chroma_format
2302 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << width_of_mb);
2303 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2304 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2306 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2308 if(s->picture_structure==PICT_FRAME){
2309 s->dest[0] += s->mb_y * linesize << height_of_mb;
2310 s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2311 s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2313 s->dest[0] += (s->mb_y>>1) * linesize << height_of_mb;
2314 s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2315 s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2316 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2321 void ff_mpeg_flush(AVCodecContext *avctx){
2323 MpegEncContext *s = avctx->priv_data;
2325 if (!s || !s->picture)
2328 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2329 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2330 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2332 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2333 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2334 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2336 s->mb_x= s->mb_y= 0;
2339 s->parse_context.state= -1;
2340 s->parse_context.frame_start_found= 0;
2341 s->parse_context.overread= 0;
2342 s->parse_context.overread_index= 0;
2343 s->parse_context.index= 0;
2344 s->parse_context.last_index= 0;
2345 s->bitstream_buffer_size=0;
2350 * set qscale and update qscale dependent variables.
2352 void ff_set_qscale(MpegEncContext * s, int qscale)
2356 else if (qscale > 31)
2360 s->chroma_qscale= s->chroma_qscale_table[qscale];
2362 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2363 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2366 void ff_mpv_report_decode_progress(MpegEncContext *s)
2368 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2369 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);