2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/motion_vector.h"
35 #include "libavutil/timer.h"
38 #include "h264chroma.h"
43 #include "mpegutils.h"
44 #include "mpegvideo.h"
45 #include "mpegvideodata.h"
53 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
54 int16_t *block, int n, int qscale)
56 int i, level, nCoeffs;
57 const uint16_t *quant_matrix;
59 nCoeffs= s->block_last_index[n];
61 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
63 quant_matrix = s->intra_matrix;
64 for(i=1;i<=nCoeffs;i++) {
65 int j= s->intra_scantable.permutated[i];
70 level = (int)(level * qscale * quant_matrix[j]) >> 3;
71 level = (level - 1) | 1;
74 level = (int)(level * qscale * quant_matrix[j]) >> 3;
75 level = (level - 1) | 1;
82 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
83 int16_t *block, int n, int qscale)
85 int i, level, nCoeffs;
86 const uint16_t *quant_matrix;
88 nCoeffs= s->block_last_index[n];
90 quant_matrix = s->inter_matrix;
91 for(i=0; i<=nCoeffs; i++) {
92 int j= s->intra_scantable.permutated[i];
97 level = (((level << 1) + 1) * qscale *
98 ((int) (quant_matrix[j]))) >> 4;
99 level = (level - 1) | 1;
102 level = (((level << 1) + 1) * qscale *
103 ((int) (quant_matrix[j]))) >> 4;
104 level = (level - 1) | 1;
111 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
112 int16_t *block, int n, int qscale)
114 int i, level, nCoeffs;
115 const uint16_t *quant_matrix;
117 if(s->alternate_scan) nCoeffs= 63;
118 else nCoeffs= s->block_last_index[n];
120 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
121 quant_matrix = s->intra_matrix;
122 for(i=1;i<=nCoeffs;i++) {
123 int j= s->intra_scantable.permutated[i];
128 level = (int)(level * qscale * quant_matrix[j]) >> 3;
131 level = (int)(level * qscale * quant_matrix[j]) >> 3;
138 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
139 int16_t *block, int n, int qscale)
141 int i, level, nCoeffs;
142 const uint16_t *quant_matrix;
145 if(s->alternate_scan) nCoeffs= 63;
146 else nCoeffs= s->block_last_index[n];
148 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
150 quant_matrix = s->intra_matrix;
151 for(i=1;i<=nCoeffs;i++) {
152 int j= s->intra_scantable.permutated[i];
157 level = (int)(level * qscale * quant_matrix[j]) >> 3;
160 level = (int)(level * qscale * quant_matrix[j]) >> 3;
169 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
170 int16_t *block, int n, int qscale)
172 int i, level, nCoeffs;
173 const uint16_t *quant_matrix;
176 if(s->alternate_scan) nCoeffs= 63;
177 else nCoeffs= s->block_last_index[n];
179 quant_matrix = s->inter_matrix;
180 for(i=0; i<=nCoeffs; i++) {
181 int j= s->intra_scantable.permutated[i];
186 level = (((level << 1) + 1) * qscale *
187 ((int) (quant_matrix[j]))) >> 4;
190 level = (((level << 1) + 1) * qscale *
191 ((int) (quant_matrix[j]))) >> 4;
200 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
201 int16_t *block, int n, int qscale)
203 int i, level, qmul, qadd;
206 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
211 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
212 qadd = (qscale - 1) | 1;
219 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
221 for(i=1; i<=nCoeffs; i++) {
225 level = level * qmul - qadd;
227 level = level * qmul + qadd;
234 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
235 int16_t *block, int n, int qscale)
237 int i, level, qmul, qadd;
240 av_assert2(s->block_last_index[n]>=0);
242 qadd = (qscale - 1) | 1;
245 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
247 for(i=0; i<=nCoeffs; i++) {
251 level = level * qmul - qadd;
253 level = level * qmul + qadd;
261 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
264 memset(dst + h*linesize, 128, 16);
267 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
270 memset(dst + h*linesize, 128, 8);
273 /* init common dct for both encoder and decoder */
274 static av_cold int dct_init(MpegEncContext *s)
276 ff_blockdsp_init(&s->bdsp, s->avctx);
277 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
278 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
279 ff_mpegvideodsp_init(&s->mdsp);
280 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
282 if (s->avctx->debug & FF_DEBUG_NOMC) {
284 for (i=0; i<4; i++) {
285 s->hdsp.avg_pixels_tab[0][i] = gray16;
286 s->hdsp.put_pixels_tab[0][i] = gray16;
287 s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
289 s->hdsp.avg_pixels_tab[1][i] = gray8;
290 s->hdsp.put_pixels_tab[1][i] = gray8;
291 s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
295 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
296 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
297 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
298 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
299 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
300 if (s->avctx->flags & CODEC_FLAG_BITEXACT)
301 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
302 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
304 if (HAVE_INTRINSICS_NEON)
305 ff_mpv_common_init_neon(s);
308 ff_mpv_common_init_axp(s);
310 ff_mpv_common_init_arm(s);
312 ff_mpv_common_init_ppc(s);
314 ff_mpv_common_init_x86(s);
316 ff_mpv_common_init_mips(s);
321 av_cold void ff_mpv_idct_init(MpegEncContext *s)
323 ff_idctdsp_init(&s->idsp, s->avctx);
325 /* load & permutate scantables
326 * note: only wmv uses different ones
328 if (s->alternate_scan) {
329 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
330 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
332 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
333 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
335 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
336 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
339 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
341 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
342 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
343 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
344 &s->linesize, &s->uvlinesize);
347 static int init_duplicate_context(MpegEncContext *s)
349 int y_size = s->b8_stride * (2 * s->mb_height + 1);
350 int c_size = s->mb_stride * (s->mb_height + 1);
351 int yc_size = y_size + 2 * c_size;
354 if (s->mb_height & 1)
355 yc_size += 2*s->b8_stride + 2*s->mb_stride;
357 s->sc.edge_emu_buffer =
360 s->sc.rd_scratchpad =
362 s->sc.obmc_scratchpad = NULL;
365 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
366 ME_MAP_SIZE * sizeof(uint32_t), fail)
367 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
368 ME_MAP_SIZE * sizeof(uint32_t), fail)
369 if (s->avctx->noise_reduction) {
370 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
371 2 * 64 * sizeof(int), fail)
374 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
375 s->block = s->blocks[0];
377 for (i = 0; i < 12; i++) {
378 s->pblocks[i] = &s->block[i];
380 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
382 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
385 if (s->out_format == FMT_H263) {
387 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
388 yc_size * sizeof(int16_t) * 16, fail);
389 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
390 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
391 s->ac_val[2] = s->ac_val[1] + c_size;
396 return -1; // free() through ff_mpv_common_end()
399 static void free_duplicate_context(MpegEncContext *s)
404 av_freep(&s->sc.edge_emu_buffer);
405 av_freep(&s->me.scratchpad);
407 s->sc.rd_scratchpad =
409 s->sc.obmc_scratchpad = NULL;
411 av_freep(&s->dct_error_sum);
412 av_freep(&s->me.map);
413 av_freep(&s->me.score_map);
414 av_freep(&s->blocks);
415 av_freep(&s->ac_val_base);
419 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
421 #define COPY(a) bak->a = src->a
422 COPY(sc.edge_emu_buffer);
425 COPY(sc.rd_scratchpad);
426 COPY(sc.b_scratchpad);
427 COPY(sc.obmc_scratchpad);
434 COPY(me.map_generation);
446 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
450 // FIXME copy only needed parts
452 backup_duplicate_context(&bak, dst);
453 memcpy(dst, src, sizeof(MpegEncContext));
454 backup_duplicate_context(dst, &bak);
455 for (i = 0; i < 12; i++) {
456 dst->pblocks[i] = &dst->block[i];
458 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
460 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
462 if (!dst->sc.edge_emu_buffer &&
463 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
464 &dst->sc, dst->linesize)) < 0) {
465 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
466 "scratch buffers.\n");
469 // STOP_TIMER("update_duplicate_context")
470 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
474 int ff_mpeg_update_thread_context(AVCodecContext *dst,
475 const AVCodecContext *src)
478 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
485 // FIXME can parameters change on I-frames?
486 // in that case dst may need a reinit
487 if (!s->context_initialized) {
489 memcpy(s, s1, sizeof(MpegEncContext));
492 s->bitstream_buffer = NULL;
493 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
495 if (s1->context_initialized){
496 // s->picture_range_start += MAX_PICTURE_COUNT;
497 // s->picture_range_end += MAX_PICTURE_COUNT;
499 if((err = ff_mpv_common_init(s)) < 0){
500 memset(s, 0, sizeof(MpegEncContext));
507 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
508 s->context_reinit = 0;
509 s->height = s1->height;
510 s->width = s1->width;
511 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
515 s->avctx->coded_height = s1->avctx->coded_height;
516 s->avctx->coded_width = s1->avctx->coded_width;
517 s->avctx->width = s1->avctx->width;
518 s->avctx->height = s1->avctx->height;
520 s->coded_picture_number = s1->coded_picture_number;
521 s->picture_number = s1->picture_number;
523 av_assert0(!s->picture || s->picture != s1->picture);
525 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
526 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
527 if (s1->picture[i].f->buf[0] &&
528 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
532 #define UPDATE_PICTURE(pic)\
534 ff_mpeg_unref_picture(s->avctx, &s->pic);\
535 if (s1->pic.f && s1->pic.f->buf[0])\
536 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
538 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
543 UPDATE_PICTURE(current_picture);
544 UPDATE_PICTURE(last_picture);
545 UPDATE_PICTURE(next_picture);
547 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
548 ((pic && pic >= old_ctx->picture && \
549 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
550 &new_ctx->picture[pic - old_ctx->picture] : NULL)
552 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
553 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
554 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
556 // Error/bug resilience
557 s->next_p_frame_damaged = s1->next_p_frame_damaged;
558 s->workaround_bugs = s1->workaround_bugs;
559 s->padding_bug_score = s1->padding_bug_score;
562 memcpy(&s->last_time_base, &s1->last_time_base,
563 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
564 (char *) &s1->last_time_base);
567 s->max_b_frames = s1->max_b_frames;
568 s->low_delay = s1->low_delay;
569 s->droppable = s1->droppable;
571 // DivX handling (doesn't work)
572 s->divx_packed = s1->divx_packed;
574 if (s1->bitstream_buffer) {
575 if (s1->bitstream_buffer_size +
576 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
577 av_fast_malloc(&s->bitstream_buffer,
578 &s->allocated_bitstream_buffer_size,
579 s1->allocated_bitstream_buffer_size);
580 if (!s->bitstream_buffer) {
581 s->bitstream_buffer_size = 0;
582 return AVERROR(ENOMEM);
585 s->bitstream_buffer_size = s1->bitstream_buffer_size;
586 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
587 s1->bitstream_buffer_size);
588 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
589 FF_INPUT_BUFFER_PADDING_SIZE);
592 // linesize dependend scratch buffer allocation
593 if (!s->sc.edge_emu_buffer)
595 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
596 &s->sc, s1->linesize) < 0) {
597 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
598 "scratch buffers.\n");
599 return AVERROR(ENOMEM);
602 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
603 "be allocated due to unknown size.\n");
606 // MPEG2/interlacing info
607 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
608 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
610 if (!s1->first_field) {
611 s->last_pict_type = s1->pict_type;
612 if (s1->current_picture_ptr)
613 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
620 * Set the given MpegEncContext to common defaults
621 * (same for encoding and decoding).
622 * The changed fields will not depend upon the
623 * prior state of the MpegEncContext.
625 void ff_mpv_common_defaults(MpegEncContext *s)
627 s->y_dc_scale_table =
628 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
629 s->chroma_qscale_table = ff_default_chroma_qscale_table;
630 s->progressive_frame = 1;
631 s->progressive_sequence = 1;
632 s->picture_structure = PICT_FRAME;
634 s->coded_picture_number = 0;
635 s->picture_number = 0;
640 s->slice_context_count = 1;
644 * Set the given MpegEncContext to defaults for decoding.
645 * the changed fields will not depend upon
646 * the prior state of the MpegEncContext.
648 void ff_mpv_decode_defaults(MpegEncContext *s)
650 ff_mpv_common_defaults(s);
653 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
656 s->width = avctx->coded_width;
657 s->height = avctx->coded_height;
658 s->codec_id = avctx->codec->id;
659 s->workaround_bugs = avctx->workaround_bugs;
661 /* convert fourcc to upper case */
662 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
666 * Initialize and allocates MpegEncContext fields dependent on the resolution.
668 static int init_context_frame(MpegEncContext *s)
670 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
672 s->mb_width = (s->width + 15) / 16;
673 s->mb_stride = s->mb_width + 1;
674 s->b8_stride = s->mb_width * 2 + 1;
675 mb_array_size = s->mb_height * s->mb_stride;
676 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
678 /* set default edge pos, will be overridden
679 * in decode_header if needed */
680 s->h_edge_pos = s->mb_width * 16;
681 s->v_edge_pos = s->mb_height * 16;
683 s->mb_num = s->mb_width * s->mb_height;
688 s->block_wrap[3] = s->b8_stride;
690 s->block_wrap[5] = s->mb_stride;
692 y_size = s->b8_stride * (2 * s->mb_height + 1);
693 c_size = s->mb_stride * (s->mb_height + 1);
694 yc_size = y_size + 2 * c_size;
696 if (s->mb_height & 1)
697 yc_size += 2*s->b8_stride + 2*s->mb_stride;
699 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
700 for (y = 0; y < s->mb_height; y++)
701 for (x = 0; x < s->mb_width; x++)
702 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
704 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
707 /* Allocate MV tables */
708 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
709 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
710 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
711 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
712 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
713 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
714 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
715 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
716 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
717 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
718 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
719 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
721 /* Allocate MB type table */
722 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
724 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
726 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
727 mb_array_size * sizeof(float), fail);
728 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
729 mb_array_size * sizeof(float), fail);
733 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
734 (s->avctx->flags & CODEC_FLAG_INTERLACED_ME)) {
735 /* interlaced direct mode decoding tables */
736 for (i = 0; i < 2; i++) {
738 for (j = 0; j < 2; j++) {
739 for (k = 0; k < 2; k++) {
740 FF_ALLOCZ_OR_GOTO(s->avctx,
741 s->b_field_mv_table_base[i][j][k],
742 mv_table_size * 2 * sizeof(int16_t),
744 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
747 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
748 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
749 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
751 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
754 if (s->out_format == FMT_H263) {
756 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
757 s->coded_block = s->coded_block_base + s->b8_stride + 1;
759 /* cbp, ac_pred, pred_dir */
760 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
761 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
764 if (s->h263_pred || s->h263_plus || !s->encoding) {
766 // MN: we need these for error resilience of intra-frames
767 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
768 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
769 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
770 s->dc_val[2] = s->dc_val[1] + c_size;
771 for (i = 0; i < yc_size; i++)
772 s->dc_val_base[i] = 1024;
775 /* which mb is a intra block */
776 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
777 memset(s->mbintra_table, 1, mb_array_size);
779 /* init macroblock skip table */
780 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
781 // Note the + 1 is for a quicker mpeg4 slice_end detection
783 return ff_mpeg_er_init(s);
785 return AVERROR(ENOMEM);
788 static void clear_context(MpegEncContext *s)
792 memset(&s->next_picture, 0, sizeof(s->next_picture));
793 memset(&s->last_picture, 0, sizeof(s->last_picture));
794 memset(&s->current_picture, 0, sizeof(s->current_picture));
795 memset(&s->new_picture, 0, sizeof(s->new_picture));
797 memset(s->thread_context, 0, sizeof(s->thread_context));
800 s->me.score_map = NULL;
801 s->dct_error_sum = NULL;
804 memset(s->pblocks, 0, sizeof(s->pblocks));
805 s->ac_val_base = NULL;
809 s->sc.edge_emu_buffer = NULL;
810 s->me.scratchpad = NULL;
812 s->sc.rd_scratchpad =
814 s->sc.obmc_scratchpad = NULL;
816 s->parse_context.buffer = NULL;
817 s->parse_context.buffer_size = 0;
818 s->bitstream_buffer = NULL;
819 s->allocated_bitstream_buffer_size = 0;
822 s->p_mv_table_base = NULL;
823 s->b_forw_mv_table_base = NULL;
824 s->b_back_mv_table_base = NULL;
825 s->b_bidir_forw_mv_table_base = NULL;
826 s->b_bidir_back_mv_table_base = NULL;
827 s->b_direct_mv_table_base = NULL;
828 s->p_mv_table = NULL;
829 s->b_forw_mv_table = NULL;
830 s->b_back_mv_table = NULL;
831 s->b_bidir_forw_mv_table = NULL;
832 s->b_bidir_back_mv_table = NULL;
833 s->b_direct_mv_table = NULL;
834 for (i = 0; i < 2; i++) {
835 for (j = 0; j < 2; j++) {
836 for (k = 0; k < 2; k++) {
837 s->b_field_mv_table_base[i][j][k] = NULL;
838 s->b_field_mv_table[i][j][k] = NULL;
840 s->b_field_select_table[i][j] = NULL;
841 s->p_field_mv_table_base[i][j] = NULL;
842 s->p_field_mv_table[i][j] = NULL;
844 s->p_field_select_table[i] = NULL;
847 s->dc_val_base = NULL;
848 s->coded_block_base = NULL;
849 s->mbintra_table = NULL;
851 s->pred_dir_table = NULL;
853 s->mbskip_table = NULL;
855 s->er.error_status_table = NULL;
856 s->er.er_temp_buffer = NULL;
857 s->mb_index2xy = NULL;
858 s->lambda_table = NULL;
865 * init common structure for both encoder and decoder.
866 * this assumes that some variables like width/height are already set
868 av_cold int ff_mpv_common_init(MpegEncContext *s)
871 int nb_slices = (HAVE_THREADS &&
872 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
873 s->avctx->thread_count : 1;
877 if (s->encoding && s->avctx->slices)
878 nb_slices = s->avctx->slices;
880 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
881 s->mb_height = (s->height + 31) / 32 * 2;
883 s->mb_height = (s->height + 15) / 16;
885 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
886 av_log(s->avctx, AV_LOG_ERROR,
887 "decoding to AV_PIX_FMT_NONE is not supported.\n");
891 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
894 max_slices = FFMIN(MAX_THREADS, s->mb_height);
896 max_slices = MAX_THREADS;
897 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
898 " reducing to %d\n", nb_slices, max_slices);
899 nb_slices = max_slices;
902 if ((s->width || s->height) &&
903 av_image_check_size(s->width, s->height, 0, s->avctx))
908 /* set chroma shifts */
909 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
914 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
915 MAX_PICTURE_COUNT * sizeof(Picture), fail);
916 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
917 s->picture[i].f = av_frame_alloc();
918 if (!s->picture[i].f)
921 s->next_picture.f = av_frame_alloc();
922 if (!s->next_picture.f)
924 s->last_picture.f = av_frame_alloc();
925 if (!s->last_picture.f)
927 s->current_picture.f = av_frame_alloc();
928 if (!s->current_picture.f)
930 s->new_picture.f = av_frame_alloc();
931 if (!s->new_picture.f)
934 if (init_context_frame(s))
937 s->parse_context.state = -1;
939 s->context_initialized = 1;
940 memset(s->thread_context, 0, sizeof(s->thread_context));
941 s->thread_context[0] = s;
943 // if (s->width && s->height) {
945 for (i = 0; i < nb_slices; i++) {
947 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
948 if (!s->thread_context[i])
951 if (init_duplicate_context(s->thread_context[i]) < 0)
953 s->thread_context[i]->start_mb_y =
954 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
955 s->thread_context[i]->end_mb_y =
956 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
959 if (init_duplicate_context(s) < 0)
962 s->end_mb_y = s->mb_height;
964 s->slice_context_count = nb_slices;
969 ff_mpv_common_end(s);
974 * Frees and resets MpegEncContext fields depending on the resolution.
975 * Is used during resolution changes to avoid a full reinitialization of the
978 static void free_context_frame(MpegEncContext *s)
982 av_freep(&s->mb_type);
983 av_freep(&s->p_mv_table_base);
984 av_freep(&s->b_forw_mv_table_base);
985 av_freep(&s->b_back_mv_table_base);
986 av_freep(&s->b_bidir_forw_mv_table_base);
987 av_freep(&s->b_bidir_back_mv_table_base);
988 av_freep(&s->b_direct_mv_table_base);
989 s->p_mv_table = NULL;
990 s->b_forw_mv_table = NULL;
991 s->b_back_mv_table = NULL;
992 s->b_bidir_forw_mv_table = NULL;
993 s->b_bidir_back_mv_table = NULL;
994 s->b_direct_mv_table = NULL;
995 for (i = 0; i < 2; i++) {
996 for (j = 0; j < 2; j++) {
997 for (k = 0; k < 2; k++) {
998 av_freep(&s->b_field_mv_table_base[i][j][k]);
999 s->b_field_mv_table[i][j][k] = NULL;
1001 av_freep(&s->b_field_select_table[i][j]);
1002 av_freep(&s->p_field_mv_table_base[i][j]);
1003 s->p_field_mv_table[i][j] = NULL;
1005 av_freep(&s->p_field_select_table[i]);
1008 av_freep(&s->dc_val_base);
1009 av_freep(&s->coded_block_base);
1010 av_freep(&s->mbintra_table);
1011 av_freep(&s->cbp_table);
1012 av_freep(&s->pred_dir_table);
1014 av_freep(&s->mbskip_table);
1016 av_freep(&s->er.error_status_table);
1017 av_freep(&s->er.er_temp_buffer);
1018 av_freep(&s->mb_index2xy);
1019 av_freep(&s->lambda_table);
1021 av_freep(&s->cplx_tab);
1022 av_freep(&s->bits_tab);
1024 s->linesize = s->uvlinesize = 0;
1027 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1031 if (!s->context_initialized)
1032 return AVERROR(EINVAL);
1034 if (s->slice_context_count > 1) {
1035 for (i = 0; i < s->slice_context_count; i++) {
1036 free_duplicate_context(s->thread_context[i]);
1038 for (i = 1; i < s->slice_context_count; i++) {
1039 av_freep(&s->thread_context[i]);
1042 free_duplicate_context(s);
1044 free_context_frame(s);
1047 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1048 s->picture[i].needs_realloc = 1;
1051 s->last_picture_ptr =
1052 s->next_picture_ptr =
1053 s->current_picture_ptr = NULL;
1056 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1057 s->mb_height = (s->height + 31) / 32 * 2;
1059 s->mb_height = (s->height + 15) / 16;
1061 if ((s->width || s->height) &&
1062 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1065 if ((err = init_context_frame(s)))
1068 memset(s->thread_context, 0, sizeof(s->thread_context));
1069 s->thread_context[0] = s;
1071 if (s->width && s->height) {
1072 int nb_slices = s->slice_context_count;
1073 if (nb_slices > 1) {
1074 for (i = 0; i < nb_slices; i++) {
1076 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1077 if (!s->thread_context[i]) {
1078 err = AVERROR(ENOMEM);
1082 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1084 s->thread_context[i]->start_mb_y =
1085 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1086 s->thread_context[i]->end_mb_y =
1087 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1090 err = init_duplicate_context(s);
1094 s->end_mb_y = s->mb_height;
1096 s->slice_context_count = nb_slices;
1101 ff_mpv_common_end(s);
1105 /* init common structure for both encoder and decoder */
1106 void ff_mpv_common_end(MpegEncContext *s)
1110 if (s->slice_context_count > 1) {
1111 for (i = 0; i < s->slice_context_count; i++) {
1112 free_duplicate_context(s->thread_context[i]);
1114 for (i = 1; i < s->slice_context_count; i++) {
1115 av_freep(&s->thread_context[i]);
1117 s->slice_context_count = 1;
1118 } else free_duplicate_context(s);
1120 av_freep(&s->parse_context.buffer);
1121 s->parse_context.buffer_size = 0;
1123 av_freep(&s->bitstream_buffer);
1124 s->allocated_bitstream_buffer_size = 0;
1127 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1128 ff_free_picture_tables(&s->picture[i]);
1129 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1130 av_frame_free(&s->picture[i].f);
1133 av_freep(&s->picture);
1134 ff_free_picture_tables(&s->last_picture);
1135 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1136 av_frame_free(&s->last_picture.f);
1137 ff_free_picture_tables(&s->current_picture);
1138 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1139 av_frame_free(&s->current_picture.f);
1140 ff_free_picture_tables(&s->next_picture);
1141 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1142 av_frame_free(&s->next_picture.f);
1143 ff_free_picture_tables(&s->new_picture);
1144 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1145 av_frame_free(&s->new_picture.f);
1147 free_context_frame(s);
1149 s->context_initialized = 0;
1150 s->last_picture_ptr =
1151 s->next_picture_ptr =
1152 s->current_picture_ptr = NULL;
1153 s->linesize = s->uvlinesize = 0;
1157 static void gray_frame(AVFrame *frame)
1159 int i, h_chroma_shift, v_chroma_shift;
1161 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1163 for(i=0; i<frame->height; i++)
1164 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1165 for(i=0; i<FF_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1166 memset(frame->data[1] + frame->linesize[1]*i,
1167 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1168 memset(frame->data[2] + frame->linesize[2]*i,
1169 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1174 * generic function called after decoding
1175 * the header and before a frame is decoded.
1177 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1183 if (!ff_thread_can_start_frame(avctx)) {
1184 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1188 /* mark & release old frames */
1189 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1190 s->last_picture_ptr != s->next_picture_ptr &&
1191 s->last_picture_ptr->f->buf[0]) {
1192 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1195 /* release forgotten pictures */
1196 /* if (mpeg124/h263) */
1197 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1198 if (&s->picture[i] != s->last_picture_ptr &&
1199 &s->picture[i] != s->next_picture_ptr &&
1200 s->picture[i].reference && !s->picture[i].needs_realloc) {
1201 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1202 av_log(avctx, AV_LOG_ERROR,
1203 "releasing zombie picture\n");
1204 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1208 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1210 /* release non reference frames */
1211 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1212 if (!s->picture[i].reference)
1213 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1216 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1217 // we already have a unused image
1218 // (maybe it was set before reading the header)
1219 pic = s->current_picture_ptr;
1221 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1223 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1226 pic = &s->picture[i];
1230 if (!s->droppable) {
1231 if (s->pict_type != AV_PICTURE_TYPE_B)
1235 pic->f->coded_picture_number = s->coded_picture_number++;
1237 if (alloc_picture(s, pic, 0) < 0)
1240 s->current_picture_ptr = pic;
1241 // FIXME use only the vars from current_pic
1242 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1243 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1244 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1245 if (s->picture_structure != PICT_FRAME)
1246 s->current_picture_ptr->f->top_field_first =
1247 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1249 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1250 !s->progressive_sequence;
1251 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1253 s->current_picture_ptr->f->pict_type = s->pict_type;
1254 // if (s->avctx->flags && CODEC_FLAG_QSCALE)
1255 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1256 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1258 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1259 s->current_picture_ptr)) < 0)
1262 if (s->pict_type != AV_PICTURE_TYPE_B) {
1263 s->last_picture_ptr = s->next_picture_ptr;
1265 s->next_picture_ptr = s->current_picture_ptr;
1267 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1268 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1269 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1270 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1271 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1272 s->pict_type, s->droppable);
1274 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1275 (s->pict_type != AV_PICTURE_TYPE_I ||
1276 s->picture_structure != PICT_FRAME)) {
1277 int h_chroma_shift, v_chroma_shift;
1278 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1279 &h_chroma_shift, &v_chroma_shift);
1280 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1281 av_log(avctx, AV_LOG_DEBUG,
1282 "allocating dummy last picture for B frame\n");
1283 else if (s->pict_type != AV_PICTURE_TYPE_I)
1284 av_log(avctx, AV_LOG_ERROR,
1285 "warning: first frame is no keyframe\n");
1286 else if (s->picture_structure != PICT_FRAME)
1287 av_log(avctx, AV_LOG_DEBUG,
1288 "allocate dummy last picture for field based first keyframe\n");
1290 /* Allocate a dummy frame */
1291 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1293 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1296 s->last_picture_ptr = &s->picture[i];
1298 s->last_picture_ptr->reference = 3;
1299 s->last_picture_ptr->f->key_frame = 0;
1300 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1302 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1303 s->last_picture_ptr = NULL;
1307 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1308 for(i=0; i<avctx->height; i++)
1309 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1310 0x80, avctx->width);
1311 if (s->last_picture_ptr->f->data[2]) {
1312 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1313 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1314 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1315 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1316 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1320 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1321 for(i=0; i<avctx->height; i++)
1322 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1326 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1327 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1329 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1330 s->pict_type == AV_PICTURE_TYPE_B) {
1331 /* Allocate a dummy frame */
1332 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1334 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1337 s->next_picture_ptr = &s->picture[i];
1339 s->next_picture_ptr->reference = 3;
1340 s->next_picture_ptr->f->key_frame = 0;
1341 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1343 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1344 s->next_picture_ptr = NULL;
1347 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1348 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1351 #if 0 // BUFREF-FIXME
1352 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1353 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1355 if (s->last_picture_ptr) {
1356 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1357 if (s->last_picture_ptr->f->buf[0] &&
1358 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1359 s->last_picture_ptr)) < 0)
1362 if (s->next_picture_ptr) {
1363 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1364 if (s->next_picture_ptr->f->buf[0] &&
1365 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1366 s->next_picture_ptr)) < 0)
1370 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1371 s->last_picture_ptr->f->buf[0]));
1373 if (s->picture_structure!= PICT_FRAME) {
1375 for (i = 0; i < 4; i++) {
1376 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1377 s->current_picture.f->data[i] +=
1378 s->current_picture.f->linesize[i];
1380 s->current_picture.f->linesize[i] *= 2;
1381 s->last_picture.f->linesize[i] *= 2;
1382 s->next_picture.f->linesize[i] *= 2;
1386 /* set dequantizer, we can't do it during init as
1387 * it might change for mpeg4 and we can't do it in the header
1388 * decode as init is not called for mpeg4 there yet */
1389 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1390 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1391 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1392 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1393 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1394 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1396 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1397 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1400 if (s->avctx->debug & FF_DEBUG_NOMC) {
1401 gray_frame(s->current_picture_ptr->f);
1407 /* called after a frame has been decoded. */
1408 void ff_mpv_frame_end(MpegEncContext *s)
1412 if (s->current_picture.reference)
1413 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1418 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
1421 return clip_line(ex, ey, sx, sy, maxx);
1426 *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
1433 *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
1441 * Draw a line from (ex, ey) -> (sx, sy).
1442 * @param w width of the image
1443 * @param h height of the image
1444 * @param stride stride/linesize of the image
1445 * @param color color of the arrow
1447 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1448 int w, int h, int stride, int color)
1452 if (clip_line(&sx, &sy, &ex, &ey, w - 1))
1454 if (clip_line(&sy, &sx, &ey, &ex, h - 1))
1457 sx = av_clip(sx, 0, w - 1);
1458 sy = av_clip(sy, 0, h - 1);
1459 ex = av_clip(ex, 0, w - 1);
1460 ey = av_clip(ey, 0, h - 1);
1462 buf[sy * stride + sx] += color;
1464 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1466 FFSWAP(int, sx, ex);
1467 FFSWAP(int, sy, ey);
1469 buf += sx + sy * stride;
1471 f = ((ey - sy) << 16) / ex;
1472 for (x = 0; x <= ex; x++) {
1474 fr = (x * f) & 0xFFFF;
1475 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1476 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1480 FFSWAP(int, sx, ex);
1481 FFSWAP(int, sy, ey);
1483 buf += sx + sy * stride;
1486 f = ((ex - sx) << 16) / ey;
1489 for(y= 0; y <= ey; y++){
1491 fr = (y*f) & 0xFFFF;
1492 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1493 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1499 * Draw an arrow from (ex, ey) -> (sx, sy).
1500 * @param w width of the image
1501 * @param h height of the image
1502 * @param stride stride/linesize of the image
1503 * @param color color of the arrow
1505 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1506 int ey, int w, int h, int stride, int color, int tail, int direction)
1511 FFSWAP(int, sx, ex);
1512 FFSWAP(int, sy, ey);
1515 sx = av_clip(sx, -100, w + 100);
1516 sy = av_clip(sy, -100, h + 100);
1517 ex = av_clip(ex, -100, w + 100);
1518 ey = av_clip(ey, -100, h + 100);
1523 if (dx * dx + dy * dy > 3 * 3) {
1526 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1528 // FIXME subpixel accuracy
1529 rx = ROUNDED_DIV(rx * 3 << 4, length);
1530 ry = ROUNDED_DIV(ry * 3 << 4, length);
1537 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1538 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1540 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1544 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
1545 int dst_x, int dst_y,
1546 int src_x, int src_y,
1549 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
1550 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
1555 mb->source = direction ? 1 : -1;
1556 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
1561 * Print debugging info for the given picture.
1563 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1564 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1566 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1568 if ((avctx->flags2 & CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
1569 const int shift = 1 + quarter_sample;
1570 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1571 const int mv_stride = (mb_width << mv_sample_log2) +
1572 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1573 int mb_x, mb_y, mbcount = 0;
1575 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
1576 * for the maximum number of MB (4 MB in case of IS_8x8) */
1577 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
1581 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1582 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1583 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
1584 for (direction = 0; direction < 2; direction++) {
1585 if (!USES_LIST(mb_type, direction))
1587 if (IS_8X8(mb_type)) {
1588 for (i = 0; i < 4; i++) {
1589 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1590 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1591 int xy = (mb_x * 2 + (i & 1) +
1592 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1593 int mx = (motion_val[direction][xy][0] >> shift) + sx;
1594 int my = (motion_val[direction][xy][1] >> shift) + sy;
1595 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
1597 } else if (IS_16X8(mb_type)) {
1598 for (i = 0; i < 2; i++) {
1599 int sx = mb_x * 16 + 8;
1600 int sy = mb_y * 16 + 4 + 8 * i;
1601 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1602 int mx = (motion_val[direction][xy][0] >> shift);
1603 int my = (motion_val[direction][xy][1] >> shift);
1605 if (IS_INTERLACED(mb_type))
1608 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
1610 } else if (IS_8X16(mb_type)) {
1611 for (i = 0; i < 2; i++) {
1612 int sx = mb_x * 16 + 4 + 8 * i;
1613 int sy = mb_y * 16 + 8;
1614 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1615 int mx = motion_val[direction][xy][0] >> shift;
1616 int my = motion_val[direction][xy][1] >> shift;
1618 if (IS_INTERLACED(mb_type))
1621 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
1624 int sx = mb_x * 16 + 8;
1625 int sy = mb_y * 16 + 8;
1626 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
1627 int mx = (motion_val[direction][xy][0]>>shift) + sx;
1628 int my = (motion_val[direction][xy][1]>>shift) + sy;
1629 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
1636 AVFrameSideData *sd;
1638 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
1639 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
1644 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
1650 /* TODO: export all the following to make them accessible for users (and filters) */
1651 if (avctx->hwaccel || !mbtype_table
1652 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1656 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1659 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1660 av_get_picture_type_char(pict->pict_type));
1661 for (y = 0; y < mb_height; y++) {
1662 for (x = 0; x < mb_width; x++) {
1663 if (avctx->debug & FF_DEBUG_SKIP) {
1664 int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
1667 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1669 if (avctx->debug & FF_DEBUG_QP) {
1670 av_log(avctx, AV_LOG_DEBUG, "%2d",
1671 qscale_table[x + y * mb_stride]);
1673 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1674 int mb_type = mbtype_table[x + y * mb_stride];
1675 // Type & MV direction
1676 if (IS_PCM(mb_type))
1677 av_log(avctx, AV_LOG_DEBUG, "P");
1678 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1679 av_log(avctx, AV_LOG_DEBUG, "A");
1680 else if (IS_INTRA4x4(mb_type))
1681 av_log(avctx, AV_LOG_DEBUG, "i");
1682 else if (IS_INTRA16x16(mb_type))
1683 av_log(avctx, AV_LOG_DEBUG, "I");
1684 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1685 av_log(avctx, AV_LOG_DEBUG, "d");
1686 else if (IS_DIRECT(mb_type))
1687 av_log(avctx, AV_LOG_DEBUG, "D");
1688 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1689 av_log(avctx, AV_LOG_DEBUG, "g");
1690 else if (IS_GMC(mb_type))
1691 av_log(avctx, AV_LOG_DEBUG, "G");
1692 else if (IS_SKIP(mb_type))
1693 av_log(avctx, AV_LOG_DEBUG, "S");
1694 else if (!USES_LIST(mb_type, 1))
1695 av_log(avctx, AV_LOG_DEBUG, ">");
1696 else if (!USES_LIST(mb_type, 0))
1697 av_log(avctx, AV_LOG_DEBUG, "<");
1699 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1700 av_log(avctx, AV_LOG_DEBUG, "X");
1704 if (IS_8X8(mb_type))
1705 av_log(avctx, AV_LOG_DEBUG, "+");
1706 else if (IS_16X8(mb_type))
1707 av_log(avctx, AV_LOG_DEBUG, "-");
1708 else if (IS_8X16(mb_type))
1709 av_log(avctx, AV_LOG_DEBUG, "|");
1710 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1711 av_log(avctx, AV_LOG_DEBUG, " ");
1713 av_log(avctx, AV_LOG_DEBUG, "?");
1716 if (IS_INTERLACED(mb_type))
1717 av_log(avctx, AV_LOG_DEBUG, "=");
1719 av_log(avctx, AV_LOG_DEBUG, " ");
1722 av_log(avctx, AV_LOG_DEBUG, "\n");
1726 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1727 (avctx->debug_mv)) {
1730 int h_chroma_shift, v_chroma_shift, block_height;
1732 const int shift = 1 + quarter_sample;
1734 const int width = avctx->width;
1735 const int height = avctx->height;
1737 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1738 const int mv_stride = (mb_width << mv_sample_log2) +
1739 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1741 *low_delay = 0; // needed to see the vectors without trashing the buffers
1743 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1745 av_frame_make_writable(pict);
1747 pict->opaque = NULL;
1749 ptr = pict->data[0];
1751 block_height = 16 >> v_chroma_shift;
1753 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1755 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1756 const int mb_index = mb_x + mb_y * mb_stride;
1758 if ((avctx->debug_mv) && motion_val[0]) {
1760 for (type = 0; type < 3; type++) {
1764 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
1765 (pict->pict_type!= AV_PICTURE_TYPE_P))
1770 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
1771 (pict->pict_type!= AV_PICTURE_TYPE_B))
1776 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
1777 (pict->pict_type!= AV_PICTURE_TYPE_B))
1782 if (!USES_LIST(mbtype_table[mb_index], direction))
1785 if (IS_8X8(mbtype_table[mb_index])) {
1787 for (i = 0; i < 4; i++) {
1788 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1789 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1790 int xy = (mb_x * 2 + (i & 1) +
1791 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1792 int mx = (motion_val[direction][xy][0] >> shift) + sx;
1793 int my = (motion_val[direction][xy][1] >> shift) + sy;
1794 draw_arrow(ptr, sx, sy, mx, my, width,
1795 height, pict->linesize[0], 100, 0, direction);
1797 } else if (IS_16X8(mbtype_table[mb_index])) {
1799 for (i = 0; i < 2; i++) {
1800 int sx = mb_x * 16 + 8;
1801 int sy = mb_y * 16 + 4 + 8 * i;
1802 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1803 int mx = (motion_val[direction][xy][0] >> shift);
1804 int my = (motion_val[direction][xy][1] >> shift);
1806 if (IS_INTERLACED(mbtype_table[mb_index]))
1809 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1810 height, pict->linesize[0], 100, 0, direction);
1812 } else if (IS_8X16(mbtype_table[mb_index])) {
1814 for (i = 0; i < 2; i++) {
1815 int sx = mb_x * 16 + 4 + 8 * i;
1816 int sy = mb_y * 16 + 8;
1817 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1818 int mx = motion_val[direction][xy][0] >> shift;
1819 int my = motion_val[direction][xy][1] >> shift;
1821 if (IS_INTERLACED(mbtype_table[mb_index]))
1824 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1825 height, pict->linesize[0], 100, 0, direction);
1828 int sx= mb_x * 16 + 8;
1829 int sy= mb_y * 16 + 8;
1830 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
1831 int mx= (motion_val[direction][xy][0]>>shift) + sx;
1832 int my= (motion_val[direction][xy][1]>>shift) + sy;
1833 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
1838 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
1839 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
1840 0x0101010101010101ULL;
1842 for (y = 0; y < block_height; y++) {
1843 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1844 (block_height * mb_y + y) *
1845 pict->linesize[1]) = c;
1846 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1847 (block_height * mb_y + y) *
1848 pict->linesize[2]) = c;
1851 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
1853 int mb_type = mbtype_table[mb_index];
1856 #define COLOR(theta, r) \
1857 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
1858 v = (int)(128 + r * sin(theta * 3.141592 / 180));
1862 if (IS_PCM(mb_type)) {
1864 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
1865 IS_INTRA16x16(mb_type)) {
1867 } else if (IS_INTRA4x4(mb_type)) {
1869 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
1871 } else if (IS_DIRECT(mb_type)) {
1873 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
1875 } else if (IS_GMC(mb_type)) {
1877 } else if (IS_SKIP(mb_type)) {
1879 } else if (!USES_LIST(mb_type, 1)) {
1881 } else if (!USES_LIST(mb_type, 0)) {
1884 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1888 u *= 0x0101010101010101ULL;
1889 v *= 0x0101010101010101ULL;
1890 for (y = 0; y < block_height; y++) {
1891 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1892 (block_height * mb_y + y) * pict->linesize[1]) = u;
1893 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1894 (block_height * mb_y + y) * pict->linesize[2]) = v;
1898 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
1899 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
1900 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1901 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
1902 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1904 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
1905 for (y = 0; y < 16; y++)
1906 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
1907 pict->linesize[0]] ^= 0x80;
1909 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
1910 int dm = 1 << (mv_sample_log2 - 2);
1911 for (i = 0; i < 4; i++) {
1912 int sx = mb_x * 16 + 8 * (i & 1);
1913 int sy = mb_y * 16 + 8 * (i >> 1);
1914 int xy = (mb_x * 2 + (i & 1) +
1915 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1917 int32_t *mv = (int32_t *) &motion_val[0][xy];
1918 if (mv[0] != mv[dm] ||
1919 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
1920 for (y = 0; y < 8; y++)
1921 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
1922 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
1923 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
1924 pict->linesize[0]) ^= 0x8080808080808080ULL;
1928 if (IS_INTERLACED(mb_type) &&
1929 avctx->codec->id == AV_CODEC_ID_H264) {
1934 mbskip_table[mb_index] = 0;
1940 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1942 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1943 p->qscale_table, p->motion_val, &s->low_delay,
1944 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1947 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1949 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1950 int offset = 2*s->mb_stride + 1;
1952 return AVERROR(ENOMEM);
1953 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1954 ref->size -= offset;
1955 ref->data += offset;
1956 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1959 static inline int hpel_motion_lowres(MpegEncContext *s,
1960 uint8_t *dest, uint8_t *src,
1961 int field_based, int field_select,
1962 int src_x, int src_y,
1963 int width, int height, ptrdiff_t stride,
1964 int h_edge_pos, int v_edge_pos,
1965 int w, int h, h264_chroma_mc_func *pix_op,
1966 int motion_x, int motion_y)
1968 const int lowres = s->avctx->lowres;
1969 const int op_index = FFMIN(lowres, 3);
1970 const int s_mask = (2 << lowres) - 1;
1974 if (s->quarter_sample) {
1979 sx = motion_x & s_mask;
1980 sy = motion_y & s_mask;
1981 src_x += motion_x >> lowres + 1;
1982 src_y += motion_y >> lowres + 1;
1984 src += src_y * stride + src_x;
1986 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1987 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1988 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1989 s->linesize, s->linesize,
1990 w + 1, (h + 1) << field_based,
1991 src_x, src_y << field_based,
1992 h_edge_pos, v_edge_pos);
1993 src = s->sc.edge_emu_buffer;
1997 sx = (sx << 2) >> lowres;
1998 sy = (sy << 2) >> lowres;
2001 pix_op[op_index](dest, src, stride, h, sx, sy);
2005 /* apply one mpeg motion vector to the three components */
2006 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2013 uint8_t **ref_picture,
2014 h264_chroma_mc_func *pix_op,
2015 int motion_x, int motion_y,
2018 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2019 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2020 ptrdiff_t uvlinesize, linesize;
2021 const int lowres = s->avctx->lowres;
2022 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2023 const int block_s = 8>>lowres;
2024 const int s_mask = (2 << lowres) - 1;
2025 const int h_edge_pos = s->h_edge_pos >> lowres;
2026 const int v_edge_pos = s->v_edge_pos >> lowres;
2027 linesize = s->current_picture.f->linesize[0] << field_based;
2028 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2030 // FIXME obviously not perfect but qpel will not work in lowres anyway
2031 if (s->quarter_sample) {
2037 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2040 sx = motion_x & s_mask;
2041 sy = motion_y & s_mask;
2042 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2043 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2045 if (s->out_format == FMT_H263) {
2046 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2047 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2048 uvsrc_x = src_x >> 1;
2049 uvsrc_y = src_y >> 1;
2050 } else if (s->out_format == FMT_H261) {
2051 // even chroma mv's are full pel in H261
2054 uvsx = (2 * mx) & s_mask;
2055 uvsy = (2 * my) & s_mask;
2056 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2057 uvsrc_y = mb_y * block_s + (my >> lowres);
2059 if(s->chroma_y_shift){
2064 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2065 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2067 if(s->chroma_x_shift){
2071 uvsy = motion_y & s_mask;
2073 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2076 uvsx = motion_x & s_mask;
2077 uvsy = motion_y & s_mask;
2084 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2085 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2086 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2088 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2089 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2090 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
2091 linesize >> field_based, linesize >> field_based,
2092 17, 17 + field_based,
2093 src_x, src_y << field_based, h_edge_pos,
2095 ptr_y = s->sc.edge_emu_buffer;
2096 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2097 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
2098 uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
2099 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2100 uvlinesize >> field_based, uvlinesize >> field_based,
2102 uvsrc_x, uvsrc_y << field_based,
2103 h_edge_pos >> 1, v_edge_pos >> 1);
2104 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2105 uvlinesize >> field_based,uvlinesize >> field_based,
2107 uvsrc_x, uvsrc_y << field_based,
2108 h_edge_pos >> 1, v_edge_pos >> 1);
2114 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2116 dest_y += s->linesize;
2117 dest_cb += s->uvlinesize;
2118 dest_cr += s->uvlinesize;
2122 ptr_y += s->linesize;
2123 ptr_cb += s->uvlinesize;
2124 ptr_cr += s->uvlinesize;
2127 sx = (sx << 2) >> lowres;
2128 sy = (sy << 2) >> lowres;
2129 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2131 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2132 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2133 uvsx = (uvsx << 2) >> lowres;
2134 uvsy = (uvsy << 2) >> lowres;
2136 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2137 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2140 // FIXME h261 lowres loop filter
2143 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2144 uint8_t *dest_cb, uint8_t *dest_cr,
2145 uint8_t **ref_picture,
2146 h264_chroma_mc_func * pix_op,
2149 const int lowres = s->avctx->lowres;
2150 const int op_index = FFMIN(lowres, 3);
2151 const int block_s = 8 >> lowres;
2152 const int s_mask = (2 << lowres) - 1;
2153 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2154 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2155 int emu = 0, src_x, src_y, sx, sy;
2159 if (s->quarter_sample) {
2164 /* In case of 8X8, we construct a single chroma motion vector
2165 with a special rounding */
2166 mx = ff_h263_round_chroma(mx);
2167 my = ff_h263_round_chroma(my);
2171 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2172 src_y = s->mb_y * block_s + (my >> lowres + 1);
2174 offset = src_y * s->uvlinesize + src_x;
2175 ptr = ref_picture[1] + offset;
2176 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2177 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2178 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
2179 s->uvlinesize, s->uvlinesize,
2181 src_x, src_y, h_edge_pos, v_edge_pos);
2182 ptr = s->sc.edge_emu_buffer;
2185 sx = (sx << 2) >> lowres;
2186 sy = (sy << 2) >> lowres;
2187 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2189 ptr = ref_picture[2] + offset;
2191 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
2192 s->uvlinesize, s->uvlinesize,
2194 src_x, src_y, h_edge_pos, v_edge_pos);
2195 ptr = s->sc.edge_emu_buffer;
2197 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2201 * motion compensation of a single macroblock
2203 * @param dest_y luma destination pointer
2204 * @param dest_cb chroma cb/u destination pointer
2205 * @param dest_cr chroma cr/v destination pointer
2206 * @param dir direction (0->forward, 1->backward)
2207 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2208 * @param pix_op halfpel motion compensation function (average or put normally)
2209 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2211 static inline void MPV_motion_lowres(MpegEncContext *s,
2212 uint8_t *dest_y, uint8_t *dest_cb,
2214 int dir, uint8_t **ref_picture,
2215 h264_chroma_mc_func *pix_op)
2219 const int lowres = s->avctx->lowres;
2220 const int block_s = 8 >>lowres;
2225 switch (s->mv_type) {
2227 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2229 ref_picture, pix_op,
2230 s->mv[dir][0][0], s->mv[dir][0][1],
2236 for (i = 0; i < 4; i++) {
2237 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2238 s->linesize) * block_s,
2239 ref_picture[0], 0, 0,
2240 (2 * mb_x + (i & 1)) * block_s,
2241 (2 * mb_y + (i >> 1)) * block_s,
2242 s->width, s->height, s->linesize,
2243 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2244 block_s, block_s, pix_op,
2245 s->mv[dir][i][0], s->mv[dir][i][1]);
2247 mx += s->mv[dir][i][0];
2248 my += s->mv[dir][i][1];
2251 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY))
2252 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2256 if (s->picture_structure == PICT_FRAME) {
2258 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2259 1, 0, s->field_select[dir][0],
2260 ref_picture, pix_op,
2261 s->mv[dir][0][0], s->mv[dir][0][1],
2264 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2265 1, 1, s->field_select[dir][1],
2266 ref_picture, pix_op,
2267 s->mv[dir][1][0], s->mv[dir][1][1],
2270 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2271 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2272 ref_picture = s->current_picture_ptr->f->data;
2275 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2276 0, 0, s->field_select[dir][0],
2277 ref_picture, pix_op,
2279 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2283 for (i = 0; i < 2; i++) {
2284 uint8_t **ref2picture;
2286 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2287 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2288 ref2picture = ref_picture;
2290 ref2picture = s->current_picture_ptr->f->data;
2293 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2294 0, 0, s->field_select[dir][i],
2295 ref2picture, pix_op,
2296 s->mv[dir][i][0], s->mv[dir][i][1] +
2297 2 * block_s * i, block_s, mb_y >> 1);
2299 dest_y += 2 * block_s * s->linesize;
2300 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2301 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2305 if (s->picture_structure == PICT_FRAME) {
2306 for (i = 0; i < 2; i++) {
2308 for (j = 0; j < 2; j++) {
2309 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2311 ref_picture, pix_op,
2312 s->mv[dir][2 * i + j][0],
2313 s->mv[dir][2 * i + j][1],
2316 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2319 for (i = 0; i < 2; i++) {
2320 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2321 0, 0, s->picture_structure != i + 1,
2322 ref_picture, pix_op,
2323 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2324 2 * block_s, mb_y >> 1);
2326 // after put we make avg of the same block
2327 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2329 // opposite parity is always in the same
2330 // frame if this is second field
2331 if (!s->first_field) {
2332 ref_picture = s->current_picture_ptr->f->data;
2343 * find the lowest MB row referenced in the MVs
2345 static int lowest_referenced_row(MpegEncContext *s, int dir)
2347 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2348 int my, off, i, mvs;
2350 if (s->picture_structure != PICT_FRAME || s->mcsel)
2353 switch (s->mv_type) {
2367 for (i = 0; i < mvs; i++) {
2368 my = s->mv[dir][i][1];
2369 my_max = FFMAX(my_max, my);
2370 my_min = FFMIN(my_min, my);
2373 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
2375 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
2377 return s->mb_height-1;
2380 /* put block[] to dest[] */
2381 static inline void put_dct(MpegEncContext *s,
2382 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2384 s->dct_unquantize_intra(s, block, i, qscale);
2385 s->idsp.idct_put(dest, line_size, block);
2388 /* add block[] to dest[] */
2389 static inline void add_dct(MpegEncContext *s,
2390 int16_t *block, int i, uint8_t *dest, int line_size)
2392 if (s->block_last_index[i] >= 0) {
2393 s->idsp.idct_add(dest, line_size, block);
2397 static inline void add_dequant_dct(MpegEncContext *s,
2398 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2400 if (s->block_last_index[i] >= 0) {
2401 s->dct_unquantize_inter(s, block, i, qscale);
2403 s->idsp.idct_add(dest, line_size, block);
2408 * Clean dc, ac, coded_block for the current non-intra MB.
2410 void ff_clean_intra_table_entries(MpegEncContext *s)
2412 int wrap = s->b8_stride;
2413 int xy = s->block_index[0];
2416 s->dc_val[0][xy + 1 ] =
2417 s->dc_val[0][xy + wrap] =
2418 s->dc_val[0][xy + 1 + wrap] = 1024;
2420 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2421 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2422 if (s->msmpeg4_version>=3) {
2423 s->coded_block[xy ] =
2424 s->coded_block[xy + 1 ] =
2425 s->coded_block[xy + wrap] =
2426 s->coded_block[xy + 1 + wrap] = 0;
2429 wrap = s->mb_stride;
2430 xy = s->mb_x + s->mb_y * wrap;
2432 s->dc_val[2][xy] = 1024;
2434 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2435 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2437 s->mbintra_table[xy]= 0;
2440 /* generic function called after a macroblock has been parsed by the
2441 decoder or after it has been encoded by the encoder.
2443 Important variables used:
2444 s->mb_intra : true if intra macroblock
2445 s->mv_dir : motion vector direction
2446 s->mv_type : motion vector type
2447 s->mv : motion vector
2448 s->interlaced_dct : true if interlaced dct used (mpeg2)
2450 static av_always_inline
2451 void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2452 int lowres_flag, int is_mpeg12)
2454 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2457 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2458 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2462 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2463 /* print DCT coefficients */
2465 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2467 for(j=0; j<64; j++){
2468 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
2469 block[i][s->idsp.idct_permutation[j]]);
2471 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2475 s->current_picture.qscale_table[mb_xy] = s->qscale;
2477 /* update DC predictors for P macroblocks */
2479 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2480 if(s->mbintra_table[mb_xy])
2481 ff_clean_intra_table_entries(s);
2485 s->last_dc[2] = 128 << s->intra_dc_precision;
2488 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2489 s->mbintra_table[mb_xy]=1;
2491 if ((s->avctx->flags & CODEC_FLAG_PSNR) || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor ||
2492 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2493 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2494 uint8_t *dest_y, *dest_cb, *dest_cr;
2495 int dct_linesize, dct_offset;
2496 op_pixels_func (*op_pix)[4];
2497 qpel_mc_func (*op_qpix)[16];
2498 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2499 const int uvlinesize = s->current_picture.f->linesize[1];
2500 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2501 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2503 /* avoid copy if macroblock skipped in last frame too */
2504 /* skip only during decoding as we might trash the buffers during encoding a bit */
2506 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2508 if (s->mb_skipped) {
2510 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2512 } else if(!s->current_picture.reference) {
2515 *mbskip_ptr = 0; /* not skipped */
2519 dct_linesize = linesize << s->interlaced_dct;
2520 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2524 dest_cb= s->dest[1];
2525 dest_cr= s->dest[2];
2527 dest_y = s->sc.b_scratchpad;
2528 dest_cb= s->sc.b_scratchpad+16*linesize;
2529 dest_cr= s->sc.b_scratchpad+32*linesize;
2533 /* motion handling */
2534 /* decoding or more than one mb_type (MC was already done otherwise) */
2537 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2538 if (s->mv_dir & MV_DIR_FORWARD) {
2539 ff_thread_await_progress(&s->last_picture_ptr->tf,
2540 lowest_referenced_row(s, 0),
2543 if (s->mv_dir & MV_DIR_BACKWARD) {
2544 ff_thread_await_progress(&s->next_picture_ptr->tf,
2545 lowest_referenced_row(s, 1),
2551 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2553 if (s->mv_dir & MV_DIR_FORWARD) {
2554 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2555 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2557 if (s->mv_dir & MV_DIR_BACKWARD) {
2558 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2561 op_qpix = s->me.qpel_put;
2562 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2563 op_pix = s->hdsp.put_pixels_tab;
2565 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2567 if (s->mv_dir & MV_DIR_FORWARD) {
2568 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2569 op_pix = s->hdsp.avg_pixels_tab;
2570 op_qpix= s->me.qpel_avg;
2572 if (s->mv_dir & MV_DIR_BACKWARD) {
2573 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2578 /* skip dequant / idct if we are really late ;) */
2579 if(s->avctx->skip_idct){
2580 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2581 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2582 || s->avctx->skip_idct >= AVDISCARD_ALL)
2586 /* add dct residue */
2587 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2588 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2589 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2590 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2591 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2592 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2594 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2595 if (s->chroma_y_shift){
2596 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2597 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2601 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2602 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2603 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2604 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2607 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2608 add_dct(s, block[0], 0, dest_y , dct_linesize);
2609 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2610 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2611 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2613 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2614 if(s->chroma_y_shift){//Chroma420
2615 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2616 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2619 dct_linesize = uvlinesize << s->interlaced_dct;
2620 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2622 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2623 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2624 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2625 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2626 if(!s->chroma_x_shift){//Chroma444
2627 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2628 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2629 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2630 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2635 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2636 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2639 /* dct only in intra block */
2640 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2641 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2642 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2643 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2644 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2646 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2647 if(s->chroma_y_shift){
2648 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2649 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2653 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2654 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2655 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2656 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2660 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2661 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2662 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2663 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2665 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2666 if(s->chroma_y_shift){
2667 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2668 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2671 dct_linesize = uvlinesize << s->interlaced_dct;
2672 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2674 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2675 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2676 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2677 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2678 if(!s->chroma_x_shift){//Chroma444
2679 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2680 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2681 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2682 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2690 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2691 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2692 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2693 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2699 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
2702 if(s->out_format == FMT_MPEG1) {
2703 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 1);
2704 else mpv_decode_mb_internal(s, block, 0, 1);
2707 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 0);
2708 else mpv_decode_mb_internal(s, block, 0, 0);
2711 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2713 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2714 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2715 s->first_field, s->low_delay);
2718 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2719 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2720 const int uvlinesize = s->current_picture.f->linesize[1];
2721 const int mb_size= 4 - s->avctx->lowres;
2723 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2724 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2725 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2726 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2727 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2728 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;
2729 //block_index is not used by mpeg2, so it is not affected by chroma_format
2731 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
2732 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2733 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2735 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2737 if(s->picture_structure==PICT_FRAME){
2738 s->dest[0] += s->mb_y * linesize << mb_size;
2739 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2740 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2742 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2743 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2744 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2745 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2750 void ff_mpeg_flush(AVCodecContext *avctx){
2752 MpegEncContext *s = avctx->priv_data;
2754 if (!s || !s->picture)
2757 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2758 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2759 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2761 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2762 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2763 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2765 s->mb_x= s->mb_y= 0;
2768 s->parse_context.state= -1;
2769 s->parse_context.frame_start_found= 0;
2770 s->parse_context.overread= 0;
2771 s->parse_context.overread_index= 0;
2772 s->parse_context.index= 0;
2773 s->parse_context.last_index= 0;
2774 s->bitstream_buffer_size=0;
2779 * set qscale and update qscale dependent variables.
2781 void ff_set_qscale(MpegEncContext * s, int qscale)
2785 else if (qscale > 31)
2789 s->chroma_qscale= s->chroma_qscale_table[qscale];
2791 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2792 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2795 void ff_mpv_report_decode_progress(MpegEncContext *s)
2797 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2798 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);