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"
42 #include "mpegutils.h"
43 #include "mpegvideo.h"
44 #include "mpegvideodata.h"
52 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
53 int16_t *block, int n, int qscale)
55 int i, level, nCoeffs;
56 const uint16_t *quant_matrix;
58 nCoeffs= s->block_last_index[n];
60 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
62 quant_matrix = s->intra_matrix;
63 for(i=1;i<=nCoeffs;i++) {
64 int j= s->intra_scantable.permutated[i];
69 level = (int)(level * qscale * quant_matrix[j]) >> 3;
70 level = (level - 1) | 1;
73 level = (int)(level * qscale * quant_matrix[j]) >> 3;
74 level = (level - 1) | 1;
81 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
82 int16_t *block, int n, int qscale)
84 int i, level, nCoeffs;
85 const uint16_t *quant_matrix;
87 nCoeffs= s->block_last_index[n];
89 quant_matrix = s->inter_matrix;
90 for(i=0; i<=nCoeffs; i++) {
91 int j= s->intra_scantable.permutated[i];
96 level = (((level << 1) + 1) * qscale *
97 ((int) (quant_matrix[j]))) >> 4;
98 level = (level - 1) | 1;
101 level = (((level << 1) + 1) * qscale *
102 ((int) (quant_matrix[j]))) >> 4;
103 level = (level - 1) | 1;
110 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
111 int16_t *block, int n, int qscale)
113 int i, level, nCoeffs;
114 const uint16_t *quant_matrix;
116 if(s->alternate_scan) nCoeffs= 63;
117 else nCoeffs= s->block_last_index[n];
119 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
120 quant_matrix = s->intra_matrix;
121 for(i=1;i<=nCoeffs;i++) {
122 int j= s->intra_scantable.permutated[i];
127 level = (int)(level * qscale * quant_matrix[j]) >> 3;
130 level = (int)(level * qscale * quant_matrix[j]) >> 3;
137 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
138 int16_t *block, int n, int qscale)
140 int i, level, nCoeffs;
141 const uint16_t *quant_matrix;
144 if(s->alternate_scan) nCoeffs= 63;
145 else nCoeffs= s->block_last_index[n];
147 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
149 quant_matrix = s->intra_matrix;
150 for(i=1;i<=nCoeffs;i++) {
151 int j= s->intra_scantable.permutated[i];
156 level = (int)(level * qscale * quant_matrix[j]) >> 3;
159 level = (int)(level * qscale * quant_matrix[j]) >> 3;
168 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
169 int16_t *block, int n, int qscale)
171 int i, level, nCoeffs;
172 const uint16_t *quant_matrix;
175 if(s->alternate_scan) nCoeffs= 63;
176 else nCoeffs= s->block_last_index[n];
178 quant_matrix = s->inter_matrix;
179 for(i=0; i<=nCoeffs; i++) {
180 int j= s->intra_scantable.permutated[i];
185 level = (((level << 1) + 1) * qscale *
186 ((int) (quant_matrix[j]))) >> 4;
189 level = (((level << 1) + 1) * qscale *
190 ((int) (quant_matrix[j]))) >> 4;
199 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
200 int16_t *block, int n, int qscale)
202 int i, level, qmul, qadd;
205 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
210 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
211 qadd = (qscale - 1) | 1;
218 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
220 for(i=1; i<=nCoeffs; i++) {
224 level = level * qmul - qadd;
226 level = level * qmul + qadd;
233 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
234 int16_t *block, int n, int qscale)
236 int i, level, qmul, qadd;
239 av_assert2(s->block_last_index[n]>=0);
241 qadd = (qscale - 1) | 1;
244 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
246 for(i=0; i<=nCoeffs; i++) {
250 level = level * qmul - qadd;
252 level = level * qmul + qadd;
259 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
261 int mb_x, int mb_y, int mb_intra, int mb_skipped)
263 MpegEncContext *s = opaque;
266 s->mv_type = mv_type;
267 s->mb_intra = mb_intra;
268 s->mb_skipped = mb_skipped;
271 memcpy(s->mv, mv, sizeof(*mv));
273 ff_init_block_index(s);
274 ff_update_block_index(s);
276 s->bdsp.clear_blocks(s->block[0]);
278 s->dest[0] = s->current_picture.f->data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
279 s->dest[1] = s->current_picture.f->data[1] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
280 s->dest[2] = s->current_picture.f->data[2] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
283 av_log(s->avctx, AV_LOG_DEBUG,
284 "Interlaced error concealment is not fully implemented\n");
285 ff_mpv_decode_mb(s, s->block);
288 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
291 memset(dst + h*linesize, 128, 16);
294 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
297 memset(dst + h*linesize, 128, 8);
300 /* init common dct for both encoder and decoder */
301 static av_cold int dct_init(MpegEncContext *s)
303 ff_blockdsp_init(&s->bdsp, s->avctx);
304 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
305 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
306 ff_mpegvideodsp_init(&s->mdsp);
307 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
309 if (s->avctx->debug & FF_DEBUG_NOMC) {
311 for (i=0; i<4; i++) {
312 s->hdsp.avg_pixels_tab[0][i] = gray16;
313 s->hdsp.put_pixels_tab[0][i] = gray16;
314 s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
316 s->hdsp.avg_pixels_tab[1][i] = gray8;
317 s->hdsp.put_pixels_tab[1][i] = gray8;
318 s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
322 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
323 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
324 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
325 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
326 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
327 if (s->avctx->flags & CODEC_FLAG_BITEXACT)
328 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
329 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
331 if (HAVE_INTRINSICS_NEON)
332 ff_mpv_common_init_neon(s);
335 ff_mpv_common_init_axp(s);
337 ff_mpv_common_init_arm(s);
339 ff_mpv_common_init_ppc(s);
341 ff_mpv_common_init_x86(s);
346 av_cold void ff_mpv_idct_init(MpegEncContext *s)
348 ff_idctdsp_init(&s->idsp, s->avctx);
350 /* load & permutate scantables
351 * note: only wmv uses different ones
353 if (s->alternate_scan) {
354 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
355 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
357 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
358 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
360 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
361 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
364 static int alloc_picture(MpegEncContext *s, Picture *pic, int shared)
366 return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, shared, 0,
367 s->chroma_x_shift, s->chroma_y_shift, s->out_format,
368 s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
369 &s->linesize, &s->uvlinesize);
372 static int init_duplicate_context(MpegEncContext *s)
374 int y_size = s->b8_stride * (2 * s->mb_height + 1);
375 int c_size = s->mb_stride * (s->mb_height + 1);
376 int yc_size = y_size + 2 * c_size;
379 if (s->mb_height & 1)
380 yc_size += 2*s->b8_stride + 2*s->mb_stride;
382 s->sc.edge_emu_buffer =
385 s->sc.rd_scratchpad =
387 s->sc.obmc_scratchpad = NULL;
390 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
391 ME_MAP_SIZE * sizeof(uint32_t), fail)
392 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
393 ME_MAP_SIZE * sizeof(uint32_t), fail)
394 if (s->avctx->noise_reduction) {
395 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
396 2 * 64 * sizeof(int), fail)
399 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
400 s->block = s->blocks[0];
402 for (i = 0; i < 12; i++) {
403 s->pblocks[i] = &s->block[i];
405 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
407 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
410 if (s->out_format == FMT_H263) {
412 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
413 yc_size * sizeof(int16_t) * 16, fail);
414 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
415 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
416 s->ac_val[2] = s->ac_val[1] + c_size;
421 return -1; // free() through ff_mpv_common_end()
424 static void free_duplicate_context(MpegEncContext *s)
429 av_freep(&s->sc.edge_emu_buffer);
430 av_freep(&s->me.scratchpad);
432 s->sc.rd_scratchpad =
434 s->sc.obmc_scratchpad = NULL;
436 av_freep(&s->dct_error_sum);
437 av_freep(&s->me.map);
438 av_freep(&s->me.score_map);
439 av_freep(&s->blocks);
440 av_freep(&s->ac_val_base);
444 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
446 #define COPY(a) bak->a = src->a
447 COPY(sc.edge_emu_buffer);
450 COPY(sc.rd_scratchpad);
451 COPY(sc.b_scratchpad);
452 COPY(sc.obmc_scratchpad);
459 COPY(me.map_generation);
471 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
475 // FIXME copy only needed parts
477 backup_duplicate_context(&bak, dst);
478 memcpy(dst, src, sizeof(MpegEncContext));
479 backup_duplicate_context(dst, &bak);
480 for (i = 0; i < 12; i++) {
481 dst->pblocks[i] = &dst->block[i];
483 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
485 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
487 if (!dst->sc.edge_emu_buffer &&
488 (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
489 &dst->sc, dst->linesize)) < 0) {
490 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
491 "scratch buffers.\n");
494 // STOP_TIMER("update_duplicate_context")
495 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
499 int ff_mpeg_update_thread_context(AVCodecContext *dst,
500 const AVCodecContext *src)
503 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
510 // FIXME can parameters change on I-frames?
511 // in that case dst may need a reinit
512 if (!s->context_initialized) {
514 memcpy(s, s1, sizeof(MpegEncContext));
517 s->bitstream_buffer = NULL;
518 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
520 if (s1->context_initialized){
521 // s->picture_range_start += MAX_PICTURE_COUNT;
522 // s->picture_range_end += MAX_PICTURE_COUNT;
524 if((err = ff_mpv_common_init(s)) < 0){
525 memset(s, 0, sizeof(MpegEncContext));
532 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
533 s->context_reinit = 0;
534 s->height = s1->height;
535 s->width = s1->width;
536 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
540 s->avctx->coded_height = s1->avctx->coded_height;
541 s->avctx->coded_width = s1->avctx->coded_width;
542 s->avctx->width = s1->avctx->width;
543 s->avctx->height = s1->avctx->height;
545 s->coded_picture_number = s1->coded_picture_number;
546 s->picture_number = s1->picture_number;
548 av_assert0(!s->picture || s->picture != s1->picture);
550 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
551 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
552 if (s1->picture[i].f->buf[0] &&
553 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
557 #define UPDATE_PICTURE(pic)\
559 ff_mpeg_unref_picture(s->avctx, &s->pic);\
560 if (s1->pic.f && s1->pic.f->buf[0])\
561 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
563 ret = ff_update_picture_tables(&s->pic, &s1->pic);\
568 UPDATE_PICTURE(current_picture);
569 UPDATE_PICTURE(last_picture);
570 UPDATE_PICTURE(next_picture);
572 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
573 ((pic && pic >= old_ctx->picture && \
574 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
575 &new_ctx->picture[pic - old_ctx->picture] : NULL)
577 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
578 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
579 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
581 // Error/bug resilience
582 s->next_p_frame_damaged = s1->next_p_frame_damaged;
583 s->workaround_bugs = s1->workaround_bugs;
584 s->padding_bug_score = s1->padding_bug_score;
587 memcpy(&s->last_time_base, &s1->last_time_base,
588 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
589 (char *) &s1->last_time_base);
592 s->max_b_frames = s1->max_b_frames;
593 s->low_delay = s1->low_delay;
594 s->droppable = s1->droppable;
596 // DivX handling (doesn't work)
597 s->divx_packed = s1->divx_packed;
599 if (s1->bitstream_buffer) {
600 if (s1->bitstream_buffer_size +
601 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
602 av_fast_malloc(&s->bitstream_buffer,
603 &s->allocated_bitstream_buffer_size,
604 s1->allocated_bitstream_buffer_size);
605 if (!s->bitstream_buffer) {
606 s->bitstream_buffer_size = 0;
607 return AVERROR(ENOMEM);
610 s->bitstream_buffer_size = s1->bitstream_buffer_size;
611 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
612 s1->bitstream_buffer_size);
613 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
614 FF_INPUT_BUFFER_PADDING_SIZE);
617 // linesize dependend scratch buffer allocation
618 if (!s->sc.edge_emu_buffer)
620 if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
621 &s->sc, s1->linesize) < 0) {
622 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
623 "scratch buffers.\n");
624 return AVERROR(ENOMEM);
627 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
628 "be allocated due to unknown size.\n");
631 // MPEG2/interlacing info
632 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
633 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
635 if (!s1->first_field) {
636 s->last_pict_type = s1->pict_type;
637 if (s1->current_picture_ptr)
638 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
645 * Set the given MpegEncContext to common defaults
646 * (same for encoding and decoding).
647 * The changed fields will not depend upon the
648 * prior state of the MpegEncContext.
650 void ff_mpv_common_defaults(MpegEncContext *s)
652 s->y_dc_scale_table =
653 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
654 s->chroma_qscale_table = ff_default_chroma_qscale_table;
655 s->progressive_frame = 1;
656 s->progressive_sequence = 1;
657 s->picture_structure = PICT_FRAME;
659 s->coded_picture_number = 0;
660 s->picture_number = 0;
665 s->slice_context_count = 1;
669 * Set the given MpegEncContext to defaults for decoding.
670 * the changed fields will not depend upon
671 * the prior state of the MpegEncContext.
673 void ff_mpv_decode_defaults(MpegEncContext *s)
675 ff_mpv_common_defaults(s);
678 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
681 s->width = avctx->coded_width;
682 s->height = avctx->coded_height;
683 s->codec_id = avctx->codec->id;
684 s->workaround_bugs = avctx->workaround_bugs;
686 /* convert fourcc to upper case */
687 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
690 static int init_er(MpegEncContext *s)
692 ERContext *er = &s->er;
693 int mb_array_size = s->mb_height * s->mb_stride;
696 er->avctx = s->avctx;
698 er->mb_index2xy = s->mb_index2xy;
699 er->mb_num = s->mb_num;
700 er->mb_width = s->mb_width;
701 er->mb_height = s->mb_height;
702 er->mb_stride = s->mb_stride;
703 er->b8_stride = s->b8_stride;
705 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
706 er->error_status_table = av_mallocz(mb_array_size);
707 if (!er->er_temp_buffer || !er->error_status_table)
710 er->mbskip_table = s->mbskip_table;
711 er->mbintra_table = s->mbintra_table;
713 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
714 er->dc_val[i] = s->dc_val[i];
716 er->decode_mb = mpeg_er_decode_mb;
721 av_freep(&er->er_temp_buffer);
722 av_freep(&er->error_status_table);
723 return AVERROR(ENOMEM);
727 * Initialize and allocates MpegEncContext fields dependent on the resolution.
729 static int init_context_frame(MpegEncContext *s)
731 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
733 s->mb_width = (s->width + 15) / 16;
734 s->mb_stride = s->mb_width + 1;
735 s->b8_stride = s->mb_width * 2 + 1;
736 mb_array_size = s->mb_height * s->mb_stride;
737 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
739 /* set default edge pos, will be overridden
740 * in decode_header if needed */
741 s->h_edge_pos = s->mb_width * 16;
742 s->v_edge_pos = s->mb_height * 16;
744 s->mb_num = s->mb_width * s->mb_height;
749 s->block_wrap[3] = s->b8_stride;
751 s->block_wrap[5] = s->mb_stride;
753 y_size = s->b8_stride * (2 * s->mb_height + 1);
754 c_size = s->mb_stride * (s->mb_height + 1);
755 yc_size = y_size + 2 * c_size;
757 if (s->mb_height & 1)
758 yc_size += 2*s->b8_stride + 2*s->mb_stride;
760 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
761 for (y = 0; y < s->mb_height; y++)
762 for (x = 0; x < s->mb_width; x++)
763 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
765 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
768 /* Allocate MV tables */
769 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
770 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
771 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
772 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
773 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
774 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
775 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
776 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
777 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
778 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
779 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
780 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
782 /* Allocate MB type table */
783 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
785 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
787 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
788 mb_array_size * sizeof(float), fail);
789 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
790 mb_array_size * sizeof(float), fail);
794 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
795 (s->avctx->flags & CODEC_FLAG_INTERLACED_ME)) {
796 /* interlaced direct mode decoding tables */
797 for (i = 0; i < 2; i++) {
799 for (j = 0; j < 2; j++) {
800 for (k = 0; k < 2; k++) {
801 FF_ALLOCZ_OR_GOTO(s->avctx,
802 s->b_field_mv_table_base[i][j][k],
803 mv_table_size * 2 * sizeof(int16_t),
805 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
808 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
809 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
810 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
812 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
815 if (s->out_format == FMT_H263) {
817 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
818 s->coded_block = s->coded_block_base + s->b8_stride + 1;
820 /* cbp, ac_pred, pred_dir */
821 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
822 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
825 if (s->h263_pred || s->h263_plus || !s->encoding) {
827 // MN: we need these for error resilience of intra-frames
828 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
829 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
830 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
831 s->dc_val[2] = s->dc_val[1] + c_size;
832 for (i = 0; i < yc_size; i++)
833 s->dc_val_base[i] = 1024;
836 /* which mb is a intra block */
837 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
838 memset(s->mbintra_table, 1, mb_array_size);
840 /* init macroblock skip table */
841 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
842 // Note the + 1 is for a quicker mpeg4 slice_end detection
846 return AVERROR(ENOMEM);
850 * init common structure for both encoder and decoder.
851 * this assumes that some variables like width/height are already set
853 av_cold int ff_mpv_common_init(MpegEncContext *s)
856 int nb_slices = (HAVE_THREADS &&
857 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
858 s->avctx->thread_count : 1;
860 if (s->encoding && s->avctx->slices)
861 nb_slices = s->avctx->slices;
863 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
864 s->mb_height = (s->height + 31) / 32 * 2;
866 s->mb_height = (s->height + 15) / 16;
868 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
869 av_log(s->avctx, AV_LOG_ERROR,
870 "decoding to AV_PIX_FMT_NONE is not supported.\n");
874 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
877 max_slices = FFMIN(MAX_THREADS, s->mb_height);
879 max_slices = MAX_THREADS;
880 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
881 " reducing to %d\n", nb_slices, max_slices);
882 nb_slices = max_slices;
885 if ((s->width || s->height) &&
886 av_image_check_size(s->width, s->height, 0, s->avctx))
891 /* set chroma shifts */
892 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
897 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
898 MAX_PICTURE_COUNT * sizeof(Picture), fail);
899 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
900 s->picture[i].f = av_frame_alloc();
901 if (!s->picture[i].f)
904 memset(&s->next_picture, 0, sizeof(s->next_picture));
905 memset(&s->last_picture, 0, sizeof(s->last_picture));
906 memset(&s->current_picture, 0, sizeof(s->current_picture));
907 memset(&s->new_picture, 0, sizeof(s->new_picture));
908 s->next_picture.f = av_frame_alloc();
909 if (!s->next_picture.f)
911 s->last_picture.f = av_frame_alloc();
912 if (!s->last_picture.f)
914 s->current_picture.f = av_frame_alloc();
915 if (!s->current_picture.f)
917 s->new_picture.f = av_frame_alloc();
918 if (!s->new_picture.f)
921 if (init_context_frame(s))
924 s->parse_context.state = -1;
926 s->context_initialized = 1;
927 memset(s->thread_context, 0, sizeof(s->thread_context));
928 s->thread_context[0] = s;
930 // if (s->width && s->height) {
932 for (i = 0; i < nb_slices; i++) {
934 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
935 if (!s->thread_context[i])
938 if (init_duplicate_context(s->thread_context[i]) < 0)
940 s->thread_context[i]->start_mb_y =
941 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
942 s->thread_context[i]->end_mb_y =
943 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
946 if (init_duplicate_context(s) < 0)
949 s->end_mb_y = s->mb_height;
951 s->slice_context_count = nb_slices;
956 ff_mpv_common_end(s);
961 * Frees and resets MpegEncContext fields depending on the resolution.
962 * Is used during resolution changes to avoid a full reinitialization of the
965 static void free_context_frame(MpegEncContext *s)
969 av_freep(&s->mb_type);
970 av_freep(&s->p_mv_table_base);
971 av_freep(&s->b_forw_mv_table_base);
972 av_freep(&s->b_back_mv_table_base);
973 av_freep(&s->b_bidir_forw_mv_table_base);
974 av_freep(&s->b_bidir_back_mv_table_base);
975 av_freep(&s->b_direct_mv_table_base);
976 s->p_mv_table = NULL;
977 s->b_forw_mv_table = NULL;
978 s->b_back_mv_table = NULL;
979 s->b_bidir_forw_mv_table = NULL;
980 s->b_bidir_back_mv_table = NULL;
981 s->b_direct_mv_table = NULL;
982 for (i = 0; i < 2; i++) {
983 for (j = 0; j < 2; j++) {
984 for (k = 0; k < 2; k++) {
985 av_freep(&s->b_field_mv_table_base[i][j][k]);
986 s->b_field_mv_table[i][j][k] = NULL;
988 av_freep(&s->b_field_select_table[i][j]);
989 av_freep(&s->p_field_mv_table_base[i][j]);
990 s->p_field_mv_table[i][j] = NULL;
992 av_freep(&s->p_field_select_table[i]);
995 av_freep(&s->dc_val_base);
996 av_freep(&s->coded_block_base);
997 av_freep(&s->mbintra_table);
998 av_freep(&s->cbp_table);
999 av_freep(&s->pred_dir_table);
1001 av_freep(&s->mbskip_table);
1003 av_freep(&s->er.error_status_table);
1004 av_freep(&s->er.er_temp_buffer);
1005 av_freep(&s->mb_index2xy);
1006 av_freep(&s->lambda_table);
1008 av_freep(&s->cplx_tab);
1009 av_freep(&s->bits_tab);
1011 s->linesize = s->uvlinesize = 0;
1014 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1018 if (!s->context_initialized)
1019 return AVERROR(EINVAL);
1021 if (s->slice_context_count > 1) {
1022 for (i = 0; i < s->slice_context_count; i++) {
1023 free_duplicate_context(s->thread_context[i]);
1025 for (i = 1; i < s->slice_context_count; i++) {
1026 av_freep(&s->thread_context[i]);
1029 free_duplicate_context(s);
1031 free_context_frame(s);
1034 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1035 s->picture[i].needs_realloc = 1;
1038 s->last_picture_ptr =
1039 s->next_picture_ptr =
1040 s->current_picture_ptr = NULL;
1043 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1044 s->mb_height = (s->height + 31) / 32 * 2;
1046 s->mb_height = (s->height + 15) / 16;
1048 if ((s->width || s->height) &&
1049 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1052 if ((err = init_context_frame(s)))
1055 memset(s->thread_context, 0, sizeof(s->thread_context));
1056 s->thread_context[0] = s;
1058 if (s->width && s->height) {
1059 int nb_slices = s->slice_context_count;
1060 if (nb_slices > 1) {
1061 for (i = 0; i < nb_slices; i++) {
1063 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1064 if (!s->thread_context[i]) {
1065 err = AVERROR(ENOMEM);
1069 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1071 s->thread_context[i]->start_mb_y =
1072 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1073 s->thread_context[i]->end_mb_y =
1074 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1077 err = init_duplicate_context(s);
1081 s->end_mb_y = s->mb_height;
1083 s->slice_context_count = nb_slices;
1088 ff_mpv_common_end(s);
1092 /* init common structure for both encoder and decoder */
1093 void ff_mpv_common_end(MpegEncContext *s)
1097 if (s->slice_context_count > 1) {
1098 for (i = 0; i < s->slice_context_count; i++) {
1099 free_duplicate_context(s->thread_context[i]);
1101 for (i = 1; i < s->slice_context_count; i++) {
1102 av_freep(&s->thread_context[i]);
1104 s->slice_context_count = 1;
1105 } else free_duplicate_context(s);
1107 av_freep(&s->parse_context.buffer);
1108 s->parse_context.buffer_size = 0;
1110 av_freep(&s->bitstream_buffer);
1111 s->allocated_bitstream_buffer_size = 0;
1114 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1115 ff_free_picture_tables(&s->picture[i]);
1116 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1117 av_frame_free(&s->picture[i].f);
1120 av_freep(&s->picture);
1121 ff_free_picture_tables(&s->last_picture);
1122 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1123 av_frame_free(&s->last_picture.f);
1124 ff_free_picture_tables(&s->current_picture);
1125 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1126 av_frame_free(&s->current_picture.f);
1127 ff_free_picture_tables(&s->next_picture);
1128 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1129 av_frame_free(&s->next_picture.f);
1130 ff_free_picture_tables(&s->new_picture);
1131 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1132 av_frame_free(&s->new_picture.f);
1134 free_context_frame(s);
1136 s->context_initialized = 0;
1137 s->last_picture_ptr =
1138 s->next_picture_ptr =
1139 s->current_picture_ptr = NULL;
1140 s->linesize = s->uvlinesize = 0;
1143 static void release_unused_pictures(AVCodecContext *avctx, Picture *picture)
1147 /* release non reference frames */
1148 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1149 if (!picture[i].reference)
1150 ff_mpeg_unref_picture(avctx, &picture[i]);
1154 static void gray_frame(AVFrame *frame)
1156 int i, h_chroma_shift, v_chroma_shift;
1158 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1160 for(i=0; i<frame->height; i++)
1161 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1162 for(i=0; i<FF_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1163 memset(frame->data[1] + frame->linesize[1]*i,
1164 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1165 memset(frame->data[2] + frame->linesize[2]*i,
1166 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1171 * generic function called after decoding
1172 * the header and before a frame is decoded.
1174 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1180 if (!ff_thread_can_start_frame(avctx)) {
1181 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1185 /* mark & release old frames */
1186 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1187 s->last_picture_ptr != s->next_picture_ptr &&
1188 s->last_picture_ptr->f->buf[0]) {
1189 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1192 /* release forgotten pictures */
1193 /* if (mpeg124/h263) */
1194 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1195 if (&s->picture[i] != s->last_picture_ptr &&
1196 &s->picture[i] != s->next_picture_ptr &&
1197 s->picture[i].reference && !s->picture[i].needs_realloc) {
1198 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1199 av_log(avctx, AV_LOG_ERROR,
1200 "releasing zombie picture\n");
1201 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1205 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1207 release_unused_pictures(s->avctx, s->picture);
1209 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1210 // we already have a unused image
1211 // (maybe it was set before reading the header)
1212 pic = s->current_picture_ptr;
1214 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1216 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1219 pic = &s->picture[i];
1223 if (!s->droppable) {
1224 if (s->pict_type != AV_PICTURE_TYPE_B)
1228 pic->f->coded_picture_number = s->coded_picture_number++;
1230 if (alloc_picture(s, pic, 0) < 0)
1233 s->current_picture_ptr = pic;
1234 // FIXME use only the vars from current_pic
1235 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1236 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1237 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1238 if (s->picture_structure != PICT_FRAME)
1239 s->current_picture_ptr->f->top_field_first =
1240 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1242 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1243 !s->progressive_sequence;
1244 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1246 s->current_picture_ptr->f->pict_type = s->pict_type;
1247 // if (s->avctx->flags && CODEC_FLAG_QSCALE)
1248 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1249 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1251 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1252 s->current_picture_ptr)) < 0)
1255 if (s->pict_type != AV_PICTURE_TYPE_B) {
1256 s->last_picture_ptr = s->next_picture_ptr;
1258 s->next_picture_ptr = s->current_picture_ptr;
1260 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1261 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1262 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1263 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1264 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1265 s->pict_type, s->droppable);
1267 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1268 (s->pict_type != AV_PICTURE_TYPE_I ||
1269 s->picture_structure != PICT_FRAME)) {
1270 int h_chroma_shift, v_chroma_shift;
1271 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1272 &h_chroma_shift, &v_chroma_shift);
1273 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1274 av_log(avctx, AV_LOG_DEBUG,
1275 "allocating dummy last picture for B frame\n");
1276 else if (s->pict_type != AV_PICTURE_TYPE_I)
1277 av_log(avctx, AV_LOG_ERROR,
1278 "warning: first frame is no keyframe\n");
1279 else if (s->picture_structure != PICT_FRAME)
1280 av_log(avctx, AV_LOG_DEBUG,
1281 "allocate dummy last picture for field based first keyframe\n");
1283 /* Allocate a dummy frame */
1284 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1286 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1289 s->last_picture_ptr = &s->picture[i];
1291 s->last_picture_ptr->reference = 3;
1292 s->last_picture_ptr->f->key_frame = 0;
1293 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1295 if (alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1296 s->last_picture_ptr = NULL;
1300 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1301 for(i=0; i<avctx->height; i++)
1302 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1303 0x80, avctx->width);
1304 if (s->last_picture_ptr->f->data[2]) {
1305 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1306 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1307 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1308 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1309 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1313 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1314 for(i=0; i<avctx->height; i++)
1315 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1319 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1320 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1322 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1323 s->pict_type == AV_PICTURE_TYPE_B) {
1324 /* Allocate a dummy frame */
1325 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1327 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1330 s->next_picture_ptr = &s->picture[i];
1332 s->next_picture_ptr->reference = 3;
1333 s->next_picture_ptr->f->key_frame = 0;
1334 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1336 if (alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1337 s->next_picture_ptr = NULL;
1340 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1341 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1344 #if 0 // BUFREF-FIXME
1345 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1346 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1348 if (s->last_picture_ptr) {
1349 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1350 if (s->last_picture_ptr->f->buf[0] &&
1351 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1352 s->last_picture_ptr)) < 0)
1355 if (s->next_picture_ptr) {
1356 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1357 if (s->next_picture_ptr->f->buf[0] &&
1358 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1359 s->next_picture_ptr)) < 0)
1363 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1364 s->last_picture_ptr->f->buf[0]));
1366 if (s->picture_structure!= PICT_FRAME) {
1368 for (i = 0; i < 4; i++) {
1369 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1370 s->current_picture.f->data[i] +=
1371 s->current_picture.f->linesize[i];
1373 s->current_picture.f->linesize[i] *= 2;
1374 s->last_picture.f->linesize[i] *= 2;
1375 s->next_picture.f->linesize[i] *= 2;
1379 /* set dequantizer, we can't do it during init as
1380 * it might change for mpeg4 and we can't do it in the header
1381 * decode as init is not called for mpeg4 there yet */
1382 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1383 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1384 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1385 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1386 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1387 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1389 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1390 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1393 if (s->avctx->debug & FF_DEBUG_NOMC) {
1394 gray_frame(s->current_picture_ptr->f);
1400 /* called after a frame has been decoded. */
1401 void ff_mpv_frame_end(MpegEncContext *s)
1405 if (s->current_picture.reference)
1406 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1411 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
1414 return clip_line(ex, ey, sx, sy, maxx);
1419 *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
1426 *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
1434 * Draw a line from (ex, ey) -> (sx, sy).
1435 * @param w width of the image
1436 * @param h height of the image
1437 * @param stride stride/linesize of the image
1438 * @param color color of the arrow
1440 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1441 int w, int h, int stride, int color)
1445 if (clip_line(&sx, &sy, &ex, &ey, w - 1))
1447 if (clip_line(&sy, &sx, &ey, &ex, h - 1))
1450 sx = av_clip(sx, 0, w - 1);
1451 sy = av_clip(sy, 0, h - 1);
1452 ex = av_clip(ex, 0, w - 1);
1453 ey = av_clip(ey, 0, h - 1);
1455 buf[sy * stride + sx] += color;
1457 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1459 FFSWAP(int, sx, ex);
1460 FFSWAP(int, sy, ey);
1462 buf += sx + sy * stride;
1464 f = ((ey - sy) << 16) / ex;
1465 for (x = 0; x <= ex; x++) {
1467 fr = (x * f) & 0xFFFF;
1468 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1469 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1473 FFSWAP(int, sx, ex);
1474 FFSWAP(int, sy, ey);
1476 buf += sx + sy * stride;
1479 f = ((ex - sx) << 16) / ey;
1482 for(y= 0; y <= ey; y++){
1484 fr = (y*f) & 0xFFFF;
1485 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1486 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1492 * Draw an arrow from (ex, ey) -> (sx, sy).
1493 * @param w width of the image
1494 * @param h height of the image
1495 * @param stride stride/linesize of the image
1496 * @param color color of the arrow
1498 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1499 int ey, int w, int h, int stride, int color, int tail, int direction)
1504 FFSWAP(int, sx, ex);
1505 FFSWAP(int, sy, ey);
1508 sx = av_clip(sx, -100, w + 100);
1509 sy = av_clip(sy, -100, h + 100);
1510 ex = av_clip(ex, -100, w + 100);
1511 ey = av_clip(ey, -100, h + 100);
1516 if (dx * dx + dy * dy > 3 * 3) {
1519 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1521 // FIXME subpixel accuracy
1522 rx = ROUNDED_DIV(rx * 3 << 4, length);
1523 ry = ROUNDED_DIV(ry * 3 << 4, length);
1530 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1531 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1533 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1537 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
1538 int dst_x, int dst_y,
1539 int src_x, int src_y,
1542 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
1543 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
1548 mb->source = direction ? 1 : -1;
1549 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
1554 * Print debugging info for the given picture.
1556 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1557 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1559 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1561 if ((avctx->flags2 & CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
1562 const int shift = 1 + quarter_sample;
1563 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1564 const int mv_stride = (mb_width << mv_sample_log2) +
1565 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1566 int mb_x, mb_y, mbcount = 0;
1568 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
1569 * for the maximum number of MB (4 MB in case of IS_8x8) */
1570 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
1574 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1575 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1576 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
1577 for (direction = 0; direction < 2; direction++) {
1578 if (!USES_LIST(mb_type, direction))
1580 if (IS_8X8(mb_type)) {
1581 for (i = 0; i < 4; i++) {
1582 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1583 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1584 int xy = (mb_x * 2 + (i & 1) +
1585 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1586 int mx = (motion_val[direction][xy][0] >> shift) + sx;
1587 int my = (motion_val[direction][xy][1] >> shift) + sy;
1588 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
1590 } else if (IS_16X8(mb_type)) {
1591 for (i = 0; i < 2; i++) {
1592 int sx = mb_x * 16 + 8;
1593 int sy = mb_y * 16 + 4 + 8 * i;
1594 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1595 int mx = (motion_val[direction][xy][0] >> shift);
1596 int my = (motion_val[direction][xy][1] >> shift);
1598 if (IS_INTERLACED(mb_type))
1601 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
1603 } else if (IS_8X16(mb_type)) {
1604 for (i = 0; i < 2; i++) {
1605 int sx = mb_x * 16 + 4 + 8 * i;
1606 int sy = mb_y * 16 + 8;
1607 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1608 int mx = motion_val[direction][xy][0] >> shift;
1609 int my = motion_val[direction][xy][1] >> shift;
1611 if (IS_INTERLACED(mb_type))
1614 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
1617 int sx = mb_x * 16 + 8;
1618 int sy = mb_y * 16 + 8;
1619 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
1620 int mx = (motion_val[direction][xy][0]>>shift) + sx;
1621 int my = (motion_val[direction][xy][1]>>shift) + sy;
1622 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
1629 AVFrameSideData *sd;
1631 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
1632 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
1637 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
1643 /* TODO: export all the following to make them accessible for users (and filters) */
1644 if (avctx->hwaccel || !mbtype_table
1645 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1649 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1652 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1653 av_get_picture_type_char(pict->pict_type));
1654 for (y = 0; y < mb_height; y++) {
1655 for (x = 0; x < mb_width; x++) {
1656 if (avctx->debug & FF_DEBUG_SKIP) {
1657 int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
1660 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1662 if (avctx->debug & FF_DEBUG_QP) {
1663 av_log(avctx, AV_LOG_DEBUG, "%2d",
1664 qscale_table[x + y * mb_stride]);
1666 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1667 int mb_type = mbtype_table[x + y * mb_stride];
1668 // Type & MV direction
1669 if (IS_PCM(mb_type))
1670 av_log(avctx, AV_LOG_DEBUG, "P");
1671 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1672 av_log(avctx, AV_LOG_DEBUG, "A");
1673 else if (IS_INTRA4x4(mb_type))
1674 av_log(avctx, AV_LOG_DEBUG, "i");
1675 else if (IS_INTRA16x16(mb_type))
1676 av_log(avctx, AV_LOG_DEBUG, "I");
1677 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1678 av_log(avctx, AV_LOG_DEBUG, "d");
1679 else if (IS_DIRECT(mb_type))
1680 av_log(avctx, AV_LOG_DEBUG, "D");
1681 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1682 av_log(avctx, AV_LOG_DEBUG, "g");
1683 else if (IS_GMC(mb_type))
1684 av_log(avctx, AV_LOG_DEBUG, "G");
1685 else if (IS_SKIP(mb_type))
1686 av_log(avctx, AV_LOG_DEBUG, "S");
1687 else if (!USES_LIST(mb_type, 1))
1688 av_log(avctx, AV_LOG_DEBUG, ">");
1689 else if (!USES_LIST(mb_type, 0))
1690 av_log(avctx, AV_LOG_DEBUG, "<");
1692 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1693 av_log(avctx, AV_LOG_DEBUG, "X");
1697 if (IS_8X8(mb_type))
1698 av_log(avctx, AV_LOG_DEBUG, "+");
1699 else if (IS_16X8(mb_type))
1700 av_log(avctx, AV_LOG_DEBUG, "-");
1701 else if (IS_8X16(mb_type))
1702 av_log(avctx, AV_LOG_DEBUG, "|");
1703 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1704 av_log(avctx, AV_LOG_DEBUG, " ");
1706 av_log(avctx, AV_LOG_DEBUG, "?");
1709 if (IS_INTERLACED(mb_type))
1710 av_log(avctx, AV_LOG_DEBUG, "=");
1712 av_log(avctx, AV_LOG_DEBUG, " ");
1715 av_log(avctx, AV_LOG_DEBUG, "\n");
1719 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1720 (avctx->debug_mv)) {
1723 int h_chroma_shift, v_chroma_shift, block_height;
1725 const int shift = 1 + quarter_sample;
1727 const int width = avctx->width;
1728 const int height = avctx->height;
1730 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1731 const int mv_stride = (mb_width << mv_sample_log2) +
1732 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1734 *low_delay = 0; // needed to see the vectors without trashing the buffers
1736 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1738 av_frame_make_writable(pict);
1740 pict->opaque = NULL;
1742 ptr = pict->data[0];
1744 block_height = 16 >> v_chroma_shift;
1746 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1748 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1749 const int mb_index = mb_x + mb_y * mb_stride;
1751 if ((avctx->debug_mv) && motion_val[0]) {
1753 for (type = 0; type < 3; type++) {
1757 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
1758 (pict->pict_type!= AV_PICTURE_TYPE_P))
1763 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
1764 (pict->pict_type!= AV_PICTURE_TYPE_B))
1769 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
1770 (pict->pict_type!= AV_PICTURE_TYPE_B))
1775 if (!USES_LIST(mbtype_table[mb_index], direction))
1778 if (IS_8X8(mbtype_table[mb_index])) {
1780 for (i = 0; i < 4; i++) {
1781 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1782 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1783 int xy = (mb_x * 2 + (i & 1) +
1784 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1785 int mx = (motion_val[direction][xy][0] >> shift) + sx;
1786 int my = (motion_val[direction][xy][1] >> shift) + sy;
1787 draw_arrow(ptr, sx, sy, mx, my, width,
1788 height, pict->linesize[0], 100, 0, direction);
1790 } else if (IS_16X8(mbtype_table[mb_index])) {
1792 for (i = 0; i < 2; i++) {
1793 int sx = mb_x * 16 + 8;
1794 int sy = mb_y * 16 + 4 + 8 * i;
1795 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
1796 int mx = (motion_val[direction][xy][0] >> shift);
1797 int my = (motion_val[direction][xy][1] >> shift);
1799 if (IS_INTERLACED(mbtype_table[mb_index]))
1802 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1803 height, pict->linesize[0], 100, 0, direction);
1805 } else if (IS_8X16(mbtype_table[mb_index])) {
1807 for (i = 0; i < 2; i++) {
1808 int sx = mb_x * 16 + 4 + 8 * i;
1809 int sy = mb_y * 16 + 8;
1810 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
1811 int mx = motion_val[direction][xy][0] >> shift;
1812 int my = motion_val[direction][xy][1] >> shift;
1814 if (IS_INTERLACED(mbtype_table[mb_index]))
1817 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
1818 height, pict->linesize[0], 100, 0, direction);
1821 int sx= mb_x * 16 + 8;
1822 int sy= mb_y * 16 + 8;
1823 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
1824 int mx= (motion_val[direction][xy][0]>>shift) + sx;
1825 int my= (motion_val[direction][xy][1]>>shift) + sy;
1826 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
1831 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
1832 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
1833 0x0101010101010101ULL;
1835 for (y = 0; y < block_height; y++) {
1836 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1837 (block_height * mb_y + y) *
1838 pict->linesize[1]) = c;
1839 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1840 (block_height * mb_y + y) *
1841 pict->linesize[2]) = c;
1844 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
1846 int mb_type = mbtype_table[mb_index];
1849 #define COLOR(theta, r) \
1850 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
1851 v = (int)(128 + r * sin(theta * 3.141592 / 180));
1855 if (IS_PCM(mb_type)) {
1857 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
1858 IS_INTRA16x16(mb_type)) {
1860 } else if (IS_INTRA4x4(mb_type)) {
1862 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
1864 } else if (IS_DIRECT(mb_type)) {
1866 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
1868 } else if (IS_GMC(mb_type)) {
1870 } else if (IS_SKIP(mb_type)) {
1872 } else if (!USES_LIST(mb_type, 1)) {
1874 } else if (!USES_LIST(mb_type, 0)) {
1877 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1881 u *= 0x0101010101010101ULL;
1882 v *= 0x0101010101010101ULL;
1883 for (y = 0; y < block_height; y++) {
1884 *(uint64_t *)(pict->data[1] + 8 * mb_x +
1885 (block_height * mb_y + y) * pict->linesize[1]) = u;
1886 *(uint64_t *)(pict->data[2] + 8 * mb_x +
1887 (block_height * mb_y + y) * pict->linesize[2]) = v;
1891 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
1892 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
1893 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1894 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
1895 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
1897 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
1898 for (y = 0; y < 16; y++)
1899 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
1900 pict->linesize[0]] ^= 0x80;
1902 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
1903 int dm = 1 << (mv_sample_log2 - 2);
1904 for (i = 0; i < 4; i++) {
1905 int sx = mb_x * 16 + 8 * (i & 1);
1906 int sy = mb_y * 16 + 8 * (i >> 1);
1907 int xy = (mb_x * 2 + (i & 1) +
1908 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
1910 int32_t *mv = (int32_t *) &motion_val[0][xy];
1911 if (mv[0] != mv[dm] ||
1912 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
1913 for (y = 0; y < 8; y++)
1914 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
1915 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
1916 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
1917 pict->linesize[0]) ^= 0x8080808080808080ULL;
1921 if (IS_INTERLACED(mb_type) &&
1922 avctx->codec->id == AV_CODEC_ID_H264) {
1927 mbskip_table[mb_index] = 0;
1933 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1935 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1936 p->qscale_table, p->motion_val, &s->low_delay,
1937 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1940 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1942 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1943 int offset = 2*s->mb_stride + 1;
1945 return AVERROR(ENOMEM);
1946 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1947 ref->size -= offset;
1948 ref->data += offset;
1949 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1952 static inline int hpel_motion_lowres(MpegEncContext *s,
1953 uint8_t *dest, uint8_t *src,
1954 int field_based, int field_select,
1955 int src_x, int src_y,
1956 int width, int height, ptrdiff_t stride,
1957 int h_edge_pos, int v_edge_pos,
1958 int w, int h, h264_chroma_mc_func *pix_op,
1959 int motion_x, int motion_y)
1961 const int lowres = s->avctx->lowres;
1962 const int op_index = FFMIN(lowres, 3);
1963 const int s_mask = (2 << lowres) - 1;
1967 if (s->quarter_sample) {
1972 sx = motion_x & s_mask;
1973 sy = motion_y & s_mask;
1974 src_x += motion_x >> lowres + 1;
1975 src_y += motion_y >> lowres + 1;
1977 src += src_y * stride + src_x;
1979 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
1980 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1981 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1982 s->linesize, s->linesize,
1983 w + 1, (h + 1) << field_based,
1984 src_x, src_y << field_based,
1985 h_edge_pos, v_edge_pos);
1986 src = s->sc.edge_emu_buffer;
1990 sx = (sx << 2) >> lowres;
1991 sy = (sy << 2) >> lowres;
1994 pix_op[op_index](dest, src, stride, h, sx, sy);
1998 /* apply one mpeg motion vector to the three components */
1999 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2006 uint8_t **ref_picture,
2007 h264_chroma_mc_func *pix_op,
2008 int motion_x, int motion_y,
2011 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2012 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2013 ptrdiff_t uvlinesize, linesize;
2014 const int lowres = s->avctx->lowres;
2015 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2016 const int block_s = 8>>lowres;
2017 const int s_mask = (2 << lowres) - 1;
2018 const int h_edge_pos = s->h_edge_pos >> lowres;
2019 const int v_edge_pos = s->v_edge_pos >> lowres;
2020 linesize = s->current_picture.f->linesize[0] << field_based;
2021 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2023 // FIXME obviously not perfect but qpel will not work in lowres anyway
2024 if (s->quarter_sample) {
2030 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2033 sx = motion_x & s_mask;
2034 sy = motion_y & s_mask;
2035 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2036 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2038 if (s->out_format == FMT_H263) {
2039 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2040 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2041 uvsrc_x = src_x >> 1;
2042 uvsrc_y = src_y >> 1;
2043 } else if (s->out_format == FMT_H261) {
2044 // even chroma mv's are full pel in H261
2047 uvsx = (2 * mx) & s_mask;
2048 uvsy = (2 * my) & s_mask;
2049 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2050 uvsrc_y = mb_y * block_s + (my >> lowres);
2052 if(s->chroma_y_shift){
2057 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2058 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2060 if(s->chroma_x_shift){
2064 uvsy = motion_y & s_mask;
2066 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2069 uvsx = motion_x & s_mask;
2070 uvsy = motion_y & s_mask;
2077 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2078 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2079 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2081 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2082 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2083 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
2084 linesize >> field_based, linesize >> field_based,
2085 17, 17 + field_based,
2086 src_x, src_y << field_based, h_edge_pos,
2088 ptr_y = s->sc.edge_emu_buffer;
2089 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2090 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
2091 uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
2092 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2093 uvlinesize >> field_based, uvlinesize >> field_based,
2095 uvsrc_x, uvsrc_y << field_based,
2096 h_edge_pos >> 1, v_edge_pos >> 1);
2097 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2098 uvlinesize >> field_based,uvlinesize >> field_based,
2100 uvsrc_x, uvsrc_y << field_based,
2101 h_edge_pos >> 1, v_edge_pos >> 1);
2107 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2109 dest_y += s->linesize;
2110 dest_cb += s->uvlinesize;
2111 dest_cr += s->uvlinesize;
2115 ptr_y += s->linesize;
2116 ptr_cb += s->uvlinesize;
2117 ptr_cr += s->uvlinesize;
2120 sx = (sx << 2) >> lowres;
2121 sy = (sy << 2) >> lowres;
2122 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2124 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2125 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2126 uvsx = (uvsx << 2) >> lowres;
2127 uvsy = (uvsy << 2) >> lowres;
2129 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2130 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2133 // FIXME h261 lowres loop filter
2136 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2137 uint8_t *dest_cb, uint8_t *dest_cr,
2138 uint8_t **ref_picture,
2139 h264_chroma_mc_func * pix_op,
2142 const int lowres = s->avctx->lowres;
2143 const int op_index = FFMIN(lowres, 3);
2144 const int block_s = 8 >> lowres;
2145 const int s_mask = (2 << lowres) - 1;
2146 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2147 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2148 int emu = 0, src_x, src_y, sx, sy;
2152 if (s->quarter_sample) {
2157 /* In case of 8X8, we construct a single chroma motion vector
2158 with a special rounding */
2159 mx = ff_h263_round_chroma(mx);
2160 my = ff_h263_round_chroma(my);
2164 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2165 src_y = s->mb_y * block_s + (my >> lowres + 1);
2167 offset = src_y * s->uvlinesize + src_x;
2168 ptr = ref_picture[1] + offset;
2169 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2170 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2171 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
2172 s->uvlinesize, s->uvlinesize,
2174 src_x, src_y, h_edge_pos, v_edge_pos);
2175 ptr = s->sc.edge_emu_buffer;
2178 sx = (sx << 2) >> lowres;
2179 sy = (sy << 2) >> lowres;
2180 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2182 ptr = ref_picture[2] + offset;
2184 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
2185 s->uvlinesize, s->uvlinesize,
2187 src_x, src_y, h_edge_pos, v_edge_pos);
2188 ptr = s->sc.edge_emu_buffer;
2190 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2194 * motion compensation of a single macroblock
2196 * @param dest_y luma destination pointer
2197 * @param dest_cb chroma cb/u destination pointer
2198 * @param dest_cr chroma cr/v destination pointer
2199 * @param dir direction (0->forward, 1->backward)
2200 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2201 * @param pix_op halfpel motion compensation function (average or put normally)
2202 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2204 static inline void MPV_motion_lowres(MpegEncContext *s,
2205 uint8_t *dest_y, uint8_t *dest_cb,
2207 int dir, uint8_t **ref_picture,
2208 h264_chroma_mc_func *pix_op)
2212 const int lowres = s->avctx->lowres;
2213 const int block_s = 8 >>lowres;
2218 switch (s->mv_type) {
2220 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2222 ref_picture, pix_op,
2223 s->mv[dir][0][0], s->mv[dir][0][1],
2229 for (i = 0; i < 4; i++) {
2230 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2231 s->linesize) * block_s,
2232 ref_picture[0], 0, 0,
2233 (2 * mb_x + (i & 1)) * block_s,
2234 (2 * mb_y + (i >> 1)) * block_s,
2235 s->width, s->height, s->linesize,
2236 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2237 block_s, block_s, pix_op,
2238 s->mv[dir][i][0], s->mv[dir][i][1]);
2240 mx += s->mv[dir][i][0];
2241 my += s->mv[dir][i][1];
2244 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY))
2245 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2249 if (s->picture_structure == PICT_FRAME) {
2251 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2252 1, 0, s->field_select[dir][0],
2253 ref_picture, pix_op,
2254 s->mv[dir][0][0], s->mv[dir][0][1],
2257 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2258 1, 1, s->field_select[dir][1],
2259 ref_picture, pix_op,
2260 s->mv[dir][1][0], s->mv[dir][1][1],
2263 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2264 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2265 ref_picture = s->current_picture_ptr->f->data;
2268 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2269 0, 0, s->field_select[dir][0],
2270 ref_picture, pix_op,
2272 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2276 for (i = 0; i < 2; i++) {
2277 uint8_t **ref2picture;
2279 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2280 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2281 ref2picture = ref_picture;
2283 ref2picture = s->current_picture_ptr->f->data;
2286 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2287 0, 0, s->field_select[dir][i],
2288 ref2picture, pix_op,
2289 s->mv[dir][i][0], s->mv[dir][i][1] +
2290 2 * block_s * i, block_s, mb_y >> 1);
2292 dest_y += 2 * block_s * s->linesize;
2293 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2294 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2298 if (s->picture_structure == PICT_FRAME) {
2299 for (i = 0; i < 2; i++) {
2301 for (j = 0; j < 2; j++) {
2302 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2304 ref_picture, pix_op,
2305 s->mv[dir][2 * i + j][0],
2306 s->mv[dir][2 * i + j][1],
2309 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2312 for (i = 0; i < 2; i++) {
2313 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2314 0, 0, s->picture_structure != i + 1,
2315 ref_picture, pix_op,
2316 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2317 2 * block_s, mb_y >> 1);
2319 // after put we make avg of the same block
2320 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2322 // opposite parity is always in the same
2323 // frame if this is second field
2324 if (!s->first_field) {
2325 ref_picture = s->current_picture_ptr->f->data;
2336 * find the lowest MB row referenced in the MVs
2338 int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
2340 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2341 int my, off, i, mvs;
2343 if (s->picture_structure != PICT_FRAME || s->mcsel)
2346 switch (s->mv_type) {
2360 for (i = 0; i < mvs; i++) {
2361 my = s->mv[dir][i][1];
2362 my_max = FFMAX(my_max, my);
2363 my_min = FFMIN(my_min, my);
2366 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
2368 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
2370 return s->mb_height-1;
2373 /* put block[] to dest[] */
2374 static inline void put_dct(MpegEncContext *s,
2375 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2377 s->dct_unquantize_intra(s, block, i, qscale);
2378 s->idsp.idct_put(dest, line_size, block);
2381 /* add block[] to dest[] */
2382 static inline void add_dct(MpegEncContext *s,
2383 int16_t *block, int i, uint8_t *dest, int line_size)
2385 if (s->block_last_index[i] >= 0) {
2386 s->idsp.idct_add(dest, line_size, block);
2390 static inline void add_dequant_dct(MpegEncContext *s,
2391 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2393 if (s->block_last_index[i] >= 0) {
2394 s->dct_unquantize_inter(s, block, i, qscale);
2396 s->idsp.idct_add(dest, line_size, block);
2401 * Clean dc, ac, coded_block for the current non-intra MB.
2403 void ff_clean_intra_table_entries(MpegEncContext *s)
2405 int wrap = s->b8_stride;
2406 int xy = s->block_index[0];
2409 s->dc_val[0][xy + 1 ] =
2410 s->dc_val[0][xy + wrap] =
2411 s->dc_val[0][xy + 1 + wrap] = 1024;
2413 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2414 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2415 if (s->msmpeg4_version>=3) {
2416 s->coded_block[xy ] =
2417 s->coded_block[xy + 1 ] =
2418 s->coded_block[xy + wrap] =
2419 s->coded_block[xy + 1 + wrap] = 0;
2422 wrap = s->mb_stride;
2423 xy = s->mb_x + s->mb_y * wrap;
2425 s->dc_val[2][xy] = 1024;
2427 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2428 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2430 s->mbintra_table[xy]= 0;
2433 /* generic function called after a macroblock has been parsed by the
2434 decoder or after it has been encoded by the encoder.
2436 Important variables used:
2437 s->mb_intra : true if intra macroblock
2438 s->mv_dir : motion vector direction
2439 s->mv_type : motion vector type
2440 s->mv : motion vector
2441 s->interlaced_dct : true if interlaced dct used (mpeg2)
2443 static av_always_inline
2444 void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2445 int lowres_flag, int is_mpeg12)
2447 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2450 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2451 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2455 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2456 /* print DCT coefficients */
2458 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2460 for(j=0; j<64; j++){
2461 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
2462 block[i][s->idsp.idct_permutation[j]]);
2464 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2468 s->current_picture.qscale_table[mb_xy] = s->qscale;
2470 /* update DC predictors for P macroblocks */
2472 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2473 if(s->mbintra_table[mb_xy])
2474 ff_clean_intra_table_entries(s);
2478 s->last_dc[2] = 128 << s->intra_dc_precision;
2481 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2482 s->mbintra_table[mb_xy]=1;
2484 if ((s->avctx->flags & CODEC_FLAG_PSNR) || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor ||
2485 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2486 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2487 uint8_t *dest_y, *dest_cb, *dest_cr;
2488 int dct_linesize, dct_offset;
2489 op_pixels_func (*op_pix)[4];
2490 qpel_mc_func (*op_qpix)[16];
2491 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2492 const int uvlinesize = s->current_picture.f->linesize[1];
2493 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2494 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2496 /* avoid copy if macroblock skipped in last frame too */
2497 /* skip only during decoding as we might trash the buffers during encoding a bit */
2499 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2501 if (s->mb_skipped) {
2503 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2505 } else if(!s->current_picture.reference) {
2508 *mbskip_ptr = 0; /* not skipped */
2512 dct_linesize = linesize << s->interlaced_dct;
2513 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2517 dest_cb= s->dest[1];
2518 dest_cr= s->dest[2];
2520 dest_y = s->sc.b_scratchpad;
2521 dest_cb= s->sc.b_scratchpad+16*linesize;
2522 dest_cr= s->sc.b_scratchpad+32*linesize;
2526 /* motion handling */
2527 /* decoding or more than one mb_type (MC was already done otherwise) */
2530 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2531 if (s->mv_dir & MV_DIR_FORWARD) {
2532 ff_thread_await_progress(&s->last_picture_ptr->tf,
2533 ff_mpv_lowest_referenced_row(s, 0),
2536 if (s->mv_dir & MV_DIR_BACKWARD) {
2537 ff_thread_await_progress(&s->next_picture_ptr->tf,
2538 ff_mpv_lowest_referenced_row(s, 1),
2544 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2546 if (s->mv_dir & MV_DIR_FORWARD) {
2547 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2548 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2550 if (s->mv_dir & MV_DIR_BACKWARD) {
2551 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2554 op_qpix = s->me.qpel_put;
2555 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2556 op_pix = s->hdsp.put_pixels_tab;
2558 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2560 if (s->mv_dir & MV_DIR_FORWARD) {
2561 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2562 op_pix = s->hdsp.avg_pixels_tab;
2563 op_qpix= s->me.qpel_avg;
2565 if (s->mv_dir & MV_DIR_BACKWARD) {
2566 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2571 /* skip dequant / idct if we are really late ;) */
2572 if(s->avctx->skip_idct){
2573 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2574 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2575 || s->avctx->skip_idct >= AVDISCARD_ALL)
2579 /* add dct residue */
2580 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2581 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2582 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2583 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2584 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2585 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2587 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2588 if (s->chroma_y_shift){
2589 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2590 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2594 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2595 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2596 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2597 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2600 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2601 add_dct(s, block[0], 0, dest_y , dct_linesize);
2602 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2603 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2604 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2606 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2607 if(s->chroma_y_shift){//Chroma420
2608 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2609 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2612 dct_linesize = uvlinesize << s->interlaced_dct;
2613 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2615 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2616 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2617 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2618 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2619 if(!s->chroma_x_shift){//Chroma444
2620 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2621 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2622 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2623 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2628 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2629 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2632 /* dct only in intra block */
2633 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2634 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2635 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2636 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2637 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2639 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2640 if(s->chroma_y_shift){
2641 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2642 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2646 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2647 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2648 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2649 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2653 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
2654 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2655 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
2656 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2658 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2659 if(s->chroma_y_shift){
2660 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2661 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2664 dct_linesize = uvlinesize << s->interlaced_dct;
2665 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2667 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
2668 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
2669 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2670 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2671 if(!s->chroma_x_shift){//Chroma444
2672 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2673 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2674 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2675 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2683 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2684 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2685 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2686 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2692 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
2695 if(s->out_format == FMT_MPEG1) {
2696 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 1);
2697 else mpv_decode_mb_internal(s, block, 0, 1);
2700 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 0);
2701 else mpv_decode_mb_internal(s, block, 0, 0);
2704 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2706 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2707 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2708 s->first_field, s->low_delay);
2711 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2712 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2713 const int uvlinesize = s->current_picture.f->linesize[1];
2714 const int mb_size= 4 - s->avctx->lowres;
2716 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2717 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2718 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2719 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2720 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2721 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;
2722 //block_index is not used by mpeg2, so it is not affected by chroma_format
2724 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
2725 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2726 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
2728 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2730 if(s->picture_structure==PICT_FRAME){
2731 s->dest[0] += s->mb_y * linesize << mb_size;
2732 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2733 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2735 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2736 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2737 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2738 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2744 * Permute an 8x8 block.
2745 * @param block the block which will be permuted according to the given permutation vector
2746 * @param permutation the permutation vector
2747 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
2748 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
2749 * (inverse) permutated to scantable order!
2751 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
2757 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
2759 for(i=0; i<=last; i++){
2760 const int j= scantable[i];
2765 for(i=0; i<=last; i++){
2766 const int j= scantable[i];
2767 const int perm_j= permutation[j];
2768 block[perm_j]= temp[j];
2772 void ff_mpeg_flush(AVCodecContext *avctx){
2774 MpegEncContext *s = avctx->priv_data;
2776 if (!s || !s->picture)
2779 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2780 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2781 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2783 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2784 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2785 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2787 s->mb_x= s->mb_y= 0;
2790 s->parse_context.state= -1;
2791 s->parse_context.frame_start_found= 0;
2792 s->parse_context.overread= 0;
2793 s->parse_context.overread_index= 0;
2794 s->parse_context.index= 0;
2795 s->parse_context.last_index= 0;
2796 s->bitstream_buffer_size=0;
2801 * set qscale and update qscale dependent variables.
2803 void ff_set_qscale(MpegEncContext * s, int qscale)
2807 else if (qscale > 31)
2811 s->chroma_qscale= s->chroma_qscale_table[qscale];
2813 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2814 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2817 void ff_mpv_report_decode_progress(MpegEncContext *s)
2819 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2820 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);