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 frame_size_alloc(MpegEncContext *s, int linesize)
366 int alloc_size = FFALIGN(FFABS(linesize) + 64, 32);
368 if (s->avctx->hwaccel || s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
372 av_log(s->avctx, AV_LOG_ERROR, "Image too small, temporary buffers cannot function\n");
373 return AVERROR_PATCHWELCOME;
376 // edge emu needs blocksize + filter length - 1
377 // (= 17x17 for halfpel / 21x21 for h264)
378 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
379 // at uvlinesize. It supports only YUV420 so 24x24 is enough
380 // linesize * interlaced * MBsize
381 // we also use this buffer for encoding in encode_mb_internal() needig an additional 32 lines
382 FF_ALLOCZ_ARRAY_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size, 4 * 68,
385 FF_ALLOCZ_ARRAY_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size, 4 * 16 * 2,
387 s->me.temp = s->me.scratchpad;
388 s->rd_scratchpad = s->me.scratchpad;
389 s->b_scratchpad = s->me.scratchpad;
390 s->obmc_scratchpad = s->me.scratchpad + 16;
394 av_freep(&s->edge_emu_buffer);
395 return AVERROR(ENOMEM);
399 * Allocate a frame buffer
401 static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
403 int edges_needed = av_codec_is_encoder(s->avctx->codec);
407 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
408 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
409 s->codec_id != AV_CODEC_ID_MSS2) {
411 pic->f->width = s->avctx->width + 2 * EDGE_WIDTH;
412 pic->f->height = s->avctx->height + 2 * EDGE_WIDTH;
415 r = ff_thread_get_buffer(s->avctx, &pic->tf,
416 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
418 pic->f->width = s->avctx->width;
419 pic->f->height = s->avctx->height;
420 pic->f->format = s->avctx->pix_fmt;
421 r = avcodec_default_get_buffer2(s->avctx, pic->f, 0);
424 if (r < 0 || !pic->f->buf[0]) {
425 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
432 for (i = 0; pic->f->data[i]; i++) {
433 int offset = (EDGE_WIDTH >> (i ? s->chroma_y_shift : 0)) *
434 pic->f->linesize[i] +
435 (EDGE_WIDTH >> (i ? s->chroma_x_shift : 0));
436 pic->f->data[i] += offset;
438 pic->f->width = s->avctx->width;
439 pic->f->height = s->avctx->height;
442 if (s->avctx->hwaccel) {
443 assert(!pic->hwaccel_picture_private);
444 if (s->avctx->hwaccel->frame_priv_data_size) {
445 pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->frame_priv_data_size);
446 if (!pic->hwaccel_priv_buf) {
447 av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
450 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
454 if (s->linesize && (s->linesize != pic->f->linesize[0] ||
455 s->uvlinesize != pic->f->linesize[1])) {
456 av_log(s->avctx, AV_LOG_ERROR,
457 "get_buffer() failed (stride changed)\n");
458 ff_mpeg_unref_picture(s->avctx, pic);
462 if (pic->f->linesize[1] != pic->f->linesize[2]) {
463 av_log(s->avctx, AV_LOG_ERROR,
464 "get_buffer() failed (uv stride mismatch)\n");
465 ff_mpeg_unref_picture(s->avctx, pic);
469 if (!s->edge_emu_buffer &&
470 (ret = frame_size_alloc(s, pic->f->linesize[0])) < 0) {
471 av_log(s->avctx, AV_LOG_ERROR,
472 "get_buffer() failed to allocate context scratch buffers.\n");
473 ff_mpeg_unref_picture(s->avctx, pic);
480 void ff_free_picture_tables(Picture *pic)
484 pic->alloc_mb_width =
485 pic->alloc_mb_height = 0;
487 av_buffer_unref(&pic->mb_var_buf);
488 av_buffer_unref(&pic->mc_mb_var_buf);
489 av_buffer_unref(&pic->mb_mean_buf);
490 av_buffer_unref(&pic->mbskip_table_buf);
491 av_buffer_unref(&pic->qscale_table_buf);
492 av_buffer_unref(&pic->mb_type_buf);
494 for (i = 0; i < 2; i++) {
495 av_buffer_unref(&pic->motion_val_buf[i]);
496 av_buffer_unref(&pic->ref_index_buf[i]);
500 static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
502 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
503 const int mb_array_size = s->mb_stride * s->mb_height;
504 const int b8_array_size = s->b8_stride * s->mb_height * 2;
508 pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
509 pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride);
510 pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) *
512 if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
513 return AVERROR(ENOMEM);
516 pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
517 pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
518 pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
519 if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
520 return AVERROR(ENOMEM);
523 if (s->out_format == FMT_H263 || s->encoding || s->avctx->debug_mv ||
524 (s->avctx->flags2 & CODEC_FLAG2_EXPORT_MVS)) {
525 int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
526 int ref_index_size = 4 * mb_array_size;
528 for (i = 0; mv_size && i < 2; i++) {
529 pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
530 pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size);
531 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
532 return AVERROR(ENOMEM);
536 pic->alloc_mb_width = s->mb_width;
537 pic->alloc_mb_height = s->mb_height;
542 static int make_tables_writable(Picture *pic)
545 #define MAKE_WRITABLE(table) \
548 (ret = av_buffer_make_writable(&pic->table)) < 0)\
552 MAKE_WRITABLE(mb_var_buf);
553 MAKE_WRITABLE(mc_mb_var_buf);
554 MAKE_WRITABLE(mb_mean_buf);
555 MAKE_WRITABLE(mbskip_table_buf);
556 MAKE_WRITABLE(qscale_table_buf);
557 MAKE_WRITABLE(mb_type_buf);
559 for (i = 0; i < 2; i++) {
560 MAKE_WRITABLE(motion_val_buf[i]);
561 MAKE_WRITABLE(ref_index_buf[i]);
568 * Allocate a Picture.
569 * The pixels are allocated/set by calling get_buffer() if shared = 0
571 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
575 if (pic->qscale_table_buf)
576 if ( pic->alloc_mb_width != s->mb_width
577 || pic->alloc_mb_height != s->mb_height)
578 ff_free_picture_tables(pic);
581 av_assert0(pic->f->data[0]);
584 av_assert0(!pic->f->buf[0]);
586 if (alloc_frame_buffer(s, pic) < 0)
589 s->linesize = pic->f->linesize[0];
590 s->uvlinesize = pic->f->linesize[1];
593 if (!pic->qscale_table_buf)
594 ret = alloc_picture_tables(s, pic);
596 ret = make_tables_writable(pic);
601 pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
602 pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
603 pic->mb_mean = pic->mb_mean_buf->data;
606 pic->mbskip_table = pic->mbskip_table_buf->data;
607 pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1;
608 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
610 if (pic->motion_val_buf[0]) {
611 for (i = 0; i < 2; i++) {
612 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
613 pic->ref_index[i] = pic->ref_index_buf[i]->data;
619 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
620 ff_mpeg_unref_picture(s->avctx, pic);
621 ff_free_picture_tables(pic);
622 return AVERROR(ENOMEM);
626 * Deallocate a picture.
628 void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *pic)
630 int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
633 /* WM Image / Screen codecs allocate internal buffers with different
634 * dimensions / colorspaces; ignore user-defined callbacks for these. */
635 if (avctx->codec->id != AV_CODEC_ID_WMV3IMAGE &&
636 avctx->codec->id != AV_CODEC_ID_VC1IMAGE &&
637 avctx->codec->id != AV_CODEC_ID_MSS2)
638 ff_thread_release_buffer(avctx, &pic->tf);
640 av_frame_unref(pic->f);
642 av_buffer_unref(&pic->hwaccel_priv_buf);
644 if (pic->needs_realloc)
645 ff_free_picture_tables(pic);
647 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
650 static int update_picture_tables(Picture *dst, Picture *src)
654 #define UPDATE_TABLE(table)\
657 (!dst->table || dst->table->buffer != src->table->buffer)) {\
658 av_buffer_unref(&dst->table);\
659 dst->table = av_buffer_ref(src->table);\
661 ff_free_picture_tables(dst);\
662 return AVERROR(ENOMEM);\
667 UPDATE_TABLE(mb_var_buf);
668 UPDATE_TABLE(mc_mb_var_buf);
669 UPDATE_TABLE(mb_mean_buf);
670 UPDATE_TABLE(mbskip_table_buf);
671 UPDATE_TABLE(qscale_table_buf);
672 UPDATE_TABLE(mb_type_buf);
673 for (i = 0; i < 2; i++) {
674 UPDATE_TABLE(motion_val_buf[i]);
675 UPDATE_TABLE(ref_index_buf[i]);
678 dst->mb_var = src->mb_var;
679 dst->mc_mb_var = src->mc_mb_var;
680 dst->mb_mean = src->mb_mean;
681 dst->mbskip_table = src->mbskip_table;
682 dst->qscale_table = src->qscale_table;
683 dst->mb_type = src->mb_type;
684 for (i = 0; i < 2; i++) {
685 dst->motion_val[i] = src->motion_val[i];
686 dst->ref_index[i] = src->ref_index[i];
689 dst->alloc_mb_width = src->alloc_mb_width;
690 dst->alloc_mb_height = src->alloc_mb_height;
695 int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src)
699 av_assert0(!dst->f->buf[0]);
700 av_assert0(src->f->buf[0]);
704 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
708 ret = update_picture_tables(dst, src);
712 if (src->hwaccel_picture_private) {
713 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
714 if (!dst->hwaccel_priv_buf)
716 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
719 dst->field_picture = src->field_picture;
720 dst->mb_var_sum = src->mb_var_sum;
721 dst->mc_mb_var_sum = src->mc_mb_var_sum;
722 dst->b_frame_score = src->b_frame_score;
723 dst->needs_realloc = src->needs_realloc;
724 dst->reference = src->reference;
725 dst->shared = src->shared;
729 ff_mpeg_unref_picture(avctx, dst);
733 static int init_duplicate_context(MpegEncContext *s)
735 int y_size = s->b8_stride * (2 * s->mb_height + 1);
736 int c_size = s->mb_stride * (s->mb_height + 1);
737 int yc_size = y_size + 2 * c_size;
740 if (s->mb_height & 1)
741 yc_size += 2*s->b8_stride + 2*s->mb_stride;
748 s->obmc_scratchpad = NULL;
751 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
752 ME_MAP_SIZE * sizeof(uint32_t), fail)
753 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
754 ME_MAP_SIZE * sizeof(uint32_t), fail)
755 if (s->avctx->noise_reduction) {
756 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
757 2 * 64 * sizeof(int), fail)
760 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
761 s->block = s->blocks[0];
763 for (i = 0; i < 12; i++) {
764 s->pblocks[i] = &s->block[i];
766 if (s->avctx->codec_tag == AV_RL32("VCR2")) {
768 FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
771 if (s->out_format == FMT_H263) {
773 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
774 yc_size * sizeof(int16_t) * 16, fail);
775 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
776 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
777 s->ac_val[2] = s->ac_val[1] + c_size;
782 return -1; // free() through ff_mpv_common_end()
785 static void free_duplicate_context(MpegEncContext *s)
790 av_freep(&s->edge_emu_buffer);
791 av_freep(&s->me.scratchpad);
795 s->obmc_scratchpad = NULL;
797 av_freep(&s->dct_error_sum);
798 av_freep(&s->me.map);
799 av_freep(&s->me.score_map);
800 av_freep(&s->blocks);
801 av_freep(&s->ac_val_base);
805 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
807 #define COPY(a) bak->a = src->a
808 COPY(edge_emu_buffer);
813 COPY(obmc_scratchpad);
820 COPY(me.map_generation);
832 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
836 // FIXME copy only needed parts
838 backup_duplicate_context(&bak, dst);
839 memcpy(dst, src, sizeof(MpegEncContext));
840 backup_duplicate_context(dst, &bak);
841 for (i = 0; i < 12; i++) {
842 dst->pblocks[i] = &dst->block[i];
844 if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
846 FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
848 if (!dst->edge_emu_buffer &&
849 (ret = frame_size_alloc(dst, dst->linesize)) < 0) {
850 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
851 "scratch buffers.\n");
854 // STOP_TIMER("update_duplicate_context")
855 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
859 int ff_mpeg_update_thread_context(AVCodecContext *dst,
860 const AVCodecContext *src)
863 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
870 // FIXME can parameters change on I-frames?
871 // in that case dst may need a reinit
872 if (!s->context_initialized) {
874 memcpy(s, s1, sizeof(MpegEncContext));
877 s->bitstream_buffer = NULL;
878 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
880 if (s1->context_initialized){
881 // s->picture_range_start += MAX_PICTURE_COUNT;
882 // s->picture_range_end += MAX_PICTURE_COUNT;
884 if((err = ff_mpv_common_init(s)) < 0){
885 memset(s, 0, sizeof(MpegEncContext));
892 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
893 s->context_reinit = 0;
894 s->height = s1->height;
895 s->width = s1->width;
896 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
900 s->avctx->coded_height = s1->avctx->coded_height;
901 s->avctx->coded_width = s1->avctx->coded_width;
902 s->avctx->width = s1->avctx->width;
903 s->avctx->height = s1->avctx->height;
905 s->coded_picture_number = s1->coded_picture_number;
906 s->picture_number = s1->picture_number;
908 av_assert0(!s->picture || s->picture != s1->picture);
910 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
911 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
912 if (s1->picture[i].f->buf[0] &&
913 (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
917 #define UPDATE_PICTURE(pic)\
919 ff_mpeg_unref_picture(s->avctx, &s->pic);\
920 if (s1->pic.f && s1->pic.f->buf[0])\
921 ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
923 ret = update_picture_tables(&s->pic, &s1->pic);\
928 UPDATE_PICTURE(current_picture);
929 UPDATE_PICTURE(last_picture);
930 UPDATE_PICTURE(next_picture);
932 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
933 ((pic && pic >= old_ctx->picture && \
934 pic < old_ctx->picture + MAX_PICTURE_COUNT) ? \
935 &new_ctx->picture[pic - old_ctx->picture] : NULL)
937 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
938 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
939 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
941 // Error/bug resilience
942 s->next_p_frame_damaged = s1->next_p_frame_damaged;
943 s->workaround_bugs = s1->workaround_bugs;
944 s->padding_bug_score = s1->padding_bug_score;
947 memcpy(&s->last_time_base, &s1->last_time_base,
948 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
949 (char *) &s1->last_time_base);
952 s->max_b_frames = s1->max_b_frames;
953 s->low_delay = s1->low_delay;
954 s->droppable = s1->droppable;
956 // DivX handling (doesn't work)
957 s->divx_packed = s1->divx_packed;
959 if (s1->bitstream_buffer) {
960 if (s1->bitstream_buffer_size +
961 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
962 av_fast_malloc(&s->bitstream_buffer,
963 &s->allocated_bitstream_buffer_size,
964 s1->allocated_bitstream_buffer_size);
965 if (!s->bitstream_buffer) {
966 s->bitstream_buffer_size = 0;
967 return AVERROR(ENOMEM);
970 s->bitstream_buffer_size = s1->bitstream_buffer_size;
971 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
972 s1->bitstream_buffer_size);
973 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
974 FF_INPUT_BUFFER_PADDING_SIZE);
977 // linesize dependend scratch buffer allocation
978 if (!s->edge_emu_buffer)
980 if (frame_size_alloc(s, s1->linesize) < 0) {
981 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
982 "scratch buffers.\n");
983 return AVERROR(ENOMEM);
986 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
987 "be allocated due to unknown size.\n");
990 // MPEG2/interlacing info
991 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
992 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
994 if (!s1->first_field) {
995 s->last_pict_type = s1->pict_type;
996 if (s1->current_picture_ptr)
997 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
1004 * Set the given MpegEncContext to common defaults
1005 * (same for encoding and decoding).
1006 * The changed fields will not depend upon the
1007 * prior state of the MpegEncContext.
1009 void ff_mpv_common_defaults(MpegEncContext *s)
1011 s->y_dc_scale_table =
1012 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
1013 s->chroma_qscale_table = ff_default_chroma_qscale_table;
1014 s->progressive_frame = 1;
1015 s->progressive_sequence = 1;
1016 s->picture_structure = PICT_FRAME;
1018 s->coded_picture_number = 0;
1019 s->picture_number = 0;
1024 s->slice_context_count = 1;
1028 * Set the given MpegEncContext to defaults for decoding.
1029 * the changed fields will not depend upon
1030 * the prior state of the MpegEncContext.
1032 void ff_mpv_decode_defaults(MpegEncContext *s)
1034 ff_mpv_common_defaults(s);
1037 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
1040 s->width = avctx->coded_width;
1041 s->height = avctx->coded_height;
1042 s->codec_id = avctx->codec->id;
1043 s->workaround_bugs = avctx->workaround_bugs;
1045 /* convert fourcc to upper case */
1046 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
1049 static int init_er(MpegEncContext *s)
1051 ERContext *er = &s->er;
1052 int mb_array_size = s->mb_height * s->mb_stride;
1055 er->avctx = s->avctx;
1057 er->mb_index2xy = s->mb_index2xy;
1058 er->mb_num = s->mb_num;
1059 er->mb_width = s->mb_width;
1060 er->mb_height = s->mb_height;
1061 er->mb_stride = s->mb_stride;
1062 er->b8_stride = s->b8_stride;
1064 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
1065 er->error_status_table = av_mallocz(mb_array_size);
1066 if (!er->er_temp_buffer || !er->error_status_table)
1069 er->mbskip_table = s->mbskip_table;
1070 er->mbintra_table = s->mbintra_table;
1072 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
1073 er->dc_val[i] = s->dc_val[i];
1075 er->decode_mb = mpeg_er_decode_mb;
1080 av_freep(&er->er_temp_buffer);
1081 av_freep(&er->error_status_table);
1082 return AVERROR(ENOMEM);
1086 * Initialize and allocates MpegEncContext fields dependent on the resolution.
1088 static int init_context_frame(MpegEncContext *s)
1090 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
1092 s->mb_width = (s->width + 15) / 16;
1093 s->mb_stride = s->mb_width + 1;
1094 s->b8_stride = s->mb_width * 2 + 1;
1095 mb_array_size = s->mb_height * s->mb_stride;
1096 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
1098 /* set default edge pos, will be overridden
1099 * in decode_header if needed */
1100 s->h_edge_pos = s->mb_width * 16;
1101 s->v_edge_pos = s->mb_height * 16;
1103 s->mb_num = s->mb_width * s->mb_height;
1108 s->block_wrap[3] = s->b8_stride;
1110 s->block_wrap[5] = s->mb_stride;
1112 y_size = s->b8_stride * (2 * s->mb_height + 1);
1113 c_size = s->mb_stride * (s->mb_height + 1);
1114 yc_size = y_size + 2 * c_size;
1116 if (s->mb_height & 1)
1117 yc_size += 2*s->b8_stride + 2*s->mb_stride;
1119 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
1120 for (y = 0; y < s->mb_height; y++)
1121 for (x = 0; x < s->mb_width; x++)
1122 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
1124 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
1127 /* Allocate MV tables */
1128 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1129 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1130 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1131 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1132 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1133 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1134 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
1135 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
1136 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
1137 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
1138 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
1139 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
1141 /* Allocate MB type table */
1142 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
1144 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
1146 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
1147 mb_array_size * sizeof(float), fail);
1148 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
1149 mb_array_size * sizeof(float), fail);
1153 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
1154 (s->avctx->flags & CODEC_FLAG_INTERLACED_ME)) {
1155 /* interlaced direct mode decoding tables */
1156 for (i = 0; i < 2; i++) {
1158 for (j = 0; j < 2; j++) {
1159 for (k = 0; k < 2; k++) {
1160 FF_ALLOCZ_OR_GOTO(s->avctx,
1161 s->b_field_mv_table_base[i][j][k],
1162 mv_table_size * 2 * sizeof(int16_t),
1164 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
1167 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
1168 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
1169 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
1171 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
1174 if (s->out_format == FMT_H263) {
1176 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
1177 s->coded_block = s->coded_block_base + s->b8_stride + 1;
1179 /* cbp, ac_pred, pred_dir */
1180 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
1181 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
1184 if (s->h263_pred || s->h263_plus || !s->encoding) {
1186 // MN: we need these for error resilience of intra-frames
1187 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
1188 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
1189 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
1190 s->dc_val[2] = s->dc_val[1] + c_size;
1191 for (i = 0; i < yc_size; i++)
1192 s->dc_val_base[i] = 1024;
1195 /* which mb is a intra block */
1196 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
1197 memset(s->mbintra_table, 1, mb_array_size);
1199 /* init macroblock skip table */
1200 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
1201 // Note the + 1 is for a quicker mpeg4 slice_end detection
1205 return AVERROR(ENOMEM);
1209 * init common structure for both encoder and decoder.
1210 * this assumes that some variables like width/height are already set
1212 av_cold int ff_mpv_common_init(MpegEncContext *s)
1215 int nb_slices = (HAVE_THREADS &&
1216 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
1217 s->avctx->thread_count : 1;
1219 if (s->encoding && s->avctx->slices)
1220 nb_slices = s->avctx->slices;
1222 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1223 s->mb_height = (s->height + 31) / 32 * 2;
1225 s->mb_height = (s->height + 15) / 16;
1227 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1228 av_log(s->avctx, AV_LOG_ERROR,
1229 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1233 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1236 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1238 max_slices = MAX_THREADS;
1239 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1240 " reducing to %d\n", nb_slices, max_slices);
1241 nb_slices = max_slices;
1244 if ((s->width || s->height) &&
1245 av_image_check_size(s->width, s->height, 0, s->avctx))
1250 /* set chroma shifts */
1251 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
1253 &s->chroma_y_shift);
1256 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1257 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1258 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1259 s->picture[i].f = av_frame_alloc();
1260 if (!s->picture[i].f)
1263 memset(&s->next_picture, 0, sizeof(s->next_picture));
1264 memset(&s->last_picture, 0, sizeof(s->last_picture));
1265 memset(&s->current_picture, 0, sizeof(s->current_picture));
1266 memset(&s->new_picture, 0, sizeof(s->new_picture));
1267 s->next_picture.f = av_frame_alloc();
1268 if (!s->next_picture.f)
1270 s->last_picture.f = av_frame_alloc();
1271 if (!s->last_picture.f)
1273 s->current_picture.f = av_frame_alloc();
1274 if (!s->current_picture.f)
1276 s->new_picture.f = av_frame_alloc();
1277 if (!s->new_picture.f)
1280 if (init_context_frame(s))
1283 s->parse_context.state = -1;
1285 s->context_initialized = 1;
1286 memset(s->thread_context, 0, sizeof(s->thread_context));
1287 s->thread_context[0] = s;
1289 // if (s->width && s->height) {
1290 if (nb_slices > 1) {
1291 for (i = 0; i < nb_slices; i++) {
1293 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1294 if (!s->thread_context[i])
1297 if (init_duplicate_context(s->thread_context[i]) < 0)
1299 s->thread_context[i]->start_mb_y =
1300 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1301 s->thread_context[i]->end_mb_y =
1302 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1305 if (init_duplicate_context(s) < 0)
1308 s->end_mb_y = s->mb_height;
1310 s->slice_context_count = nb_slices;
1315 ff_mpv_common_end(s);
1320 * Frees and resets MpegEncContext fields depending on the resolution.
1321 * Is used during resolution changes to avoid a full reinitialization of the
1324 static void free_context_frame(MpegEncContext *s)
1328 av_freep(&s->mb_type);
1329 av_freep(&s->p_mv_table_base);
1330 av_freep(&s->b_forw_mv_table_base);
1331 av_freep(&s->b_back_mv_table_base);
1332 av_freep(&s->b_bidir_forw_mv_table_base);
1333 av_freep(&s->b_bidir_back_mv_table_base);
1334 av_freep(&s->b_direct_mv_table_base);
1335 s->p_mv_table = NULL;
1336 s->b_forw_mv_table = NULL;
1337 s->b_back_mv_table = NULL;
1338 s->b_bidir_forw_mv_table = NULL;
1339 s->b_bidir_back_mv_table = NULL;
1340 s->b_direct_mv_table = NULL;
1341 for (i = 0; i < 2; i++) {
1342 for (j = 0; j < 2; j++) {
1343 for (k = 0; k < 2; k++) {
1344 av_freep(&s->b_field_mv_table_base[i][j][k]);
1345 s->b_field_mv_table[i][j][k] = NULL;
1347 av_freep(&s->b_field_select_table[i][j]);
1348 av_freep(&s->p_field_mv_table_base[i][j]);
1349 s->p_field_mv_table[i][j] = NULL;
1351 av_freep(&s->p_field_select_table[i]);
1354 av_freep(&s->dc_val_base);
1355 av_freep(&s->coded_block_base);
1356 av_freep(&s->mbintra_table);
1357 av_freep(&s->cbp_table);
1358 av_freep(&s->pred_dir_table);
1360 av_freep(&s->mbskip_table);
1362 av_freep(&s->er.error_status_table);
1363 av_freep(&s->er.er_temp_buffer);
1364 av_freep(&s->mb_index2xy);
1365 av_freep(&s->lambda_table);
1367 av_freep(&s->cplx_tab);
1368 av_freep(&s->bits_tab);
1370 s->linesize = s->uvlinesize = 0;
1373 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1377 if (!s->context_initialized)
1378 return AVERROR(EINVAL);
1380 if (s->slice_context_count > 1) {
1381 for (i = 0; i < s->slice_context_count; i++) {
1382 free_duplicate_context(s->thread_context[i]);
1384 for (i = 1; i < s->slice_context_count; i++) {
1385 av_freep(&s->thread_context[i]);
1388 free_duplicate_context(s);
1390 free_context_frame(s);
1393 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1394 s->picture[i].needs_realloc = 1;
1397 s->last_picture_ptr =
1398 s->next_picture_ptr =
1399 s->current_picture_ptr = NULL;
1402 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1403 s->mb_height = (s->height + 31) / 32 * 2;
1405 s->mb_height = (s->height + 15) / 16;
1407 if ((s->width || s->height) &&
1408 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1411 if ((err = init_context_frame(s)))
1414 memset(s->thread_context, 0, sizeof(s->thread_context));
1415 s->thread_context[0] = s;
1417 if (s->width && s->height) {
1418 int nb_slices = s->slice_context_count;
1419 if (nb_slices > 1) {
1420 for (i = 0; i < nb_slices; i++) {
1422 s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1423 if (!s->thread_context[i]) {
1424 err = AVERROR(ENOMEM);
1428 if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1430 s->thread_context[i]->start_mb_y =
1431 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1432 s->thread_context[i]->end_mb_y =
1433 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1436 err = init_duplicate_context(s);
1440 s->end_mb_y = s->mb_height;
1442 s->slice_context_count = nb_slices;
1447 ff_mpv_common_end(s);
1451 /* init common structure for both encoder and decoder */
1452 void ff_mpv_common_end(MpegEncContext *s)
1456 if (s->slice_context_count > 1) {
1457 for (i = 0; i < s->slice_context_count; i++) {
1458 free_duplicate_context(s->thread_context[i]);
1460 for (i = 1; i < s->slice_context_count; i++) {
1461 av_freep(&s->thread_context[i]);
1463 s->slice_context_count = 1;
1464 } else free_duplicate_context(s);
1466 av_freep(&s->parse_context.buffer);
1467 s->parse_context.buffer_size = 0;
1469 av_freep(&s->bitstream_buffer);
1470 s->allocated_bitstream_buffer_size = 0;
1473 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1474 ff_free_picture_tables(&s->picture[i]);
1475 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1476 av_frame_free(&s->picture[i].f);
1479 av_freep(&s->picture);
1480 ff_free_picture_tables(&s->last_picture);
1481 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1482 av_frame_free(&s->last_picture.f);
1483 ff_free_picture_tables(&s->current_picture);
1484 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1485 av_frame_free(&s->current_picture.f);
1486 ff_free_picture_tables(&s->next_picture);
1487 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1488 av_frame_free(&s->next_picture.f);
1489 ff_free_picture_tables(&s->new_picture);
1490 ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1491 av_frame_free(&s->new_picture.f);
1493 free_context_frame(s);
1495 s->context_initialized = 0;
1496 s->last_picture_ptr =
1497 s->next_picture_ptr =
1498 s->current_picture_ptr = NULL;
1499 s->linesize = s->uvlinesize = 0;
1502 static void release_unused_pictures(AVCodecContext *avctx, Picture *picture)
1506 /* release non reference frames */
1507 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1508 if (!picture[i].reference)
1509 ff_mpeg_unref_picture(avctx, &picture[i]);
1513 static inline int pic_is_unused(Picture *pic)
1515 if (!pic->f->buf[0])
1517 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1522 static int find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
1527 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1528 if (!picture[i].f->buf[0])
1532 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1533 if (pic_is_unused(&picture[i]))
1538 av_log(avctx, AV_LOG_FATAL,
1539 "Internal error, picture buffer overflow\n");
1540 /* We could return -1, but the codec would crash trying to draw into a
1541 * non-existing frame anyway. This is safer than waiting for a random crash.
1542 * Also the return of this is never useful, an encoder must only allocate
1543 * as much as allowed in the specification. This has no relationship to how
1544 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1545 * enough for such valid streams).
1546 * Plus, a decoder has to check stream validity and remove frames if too
1547 * many reference frames are around. Waiting for "OOM" is not correct at
1548 * all. Similarly, missing reference frames have to be replaced by
1549 * interpolated/MC frames, anything else is a bug in the codec ...
1555 int ff_find_unused_picture(AVCodecContext *avctx, Picture *picture, int shared)
1557 int ret = find_unused_picture(avctx, picture, shared);
1559 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1560 if (picture[ret].needs_realloc) {
1561 picture[ret].needs_realloc = 0;
1562 ff_free_picture_tables(&picture[ret]);
1563 ff_mpeg_unref_picture(avctx, &picture[ret]);
1569 static void gray_frame(AVFrame *frame)
1571 int i, h_chroma_shift, v_chroma_shift;
1573 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1575 for(i=0; i<frame->height; i++)
1576 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1577 for(i=0; i<FF_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1578 memset(frame->data[1] + frame->linesize[1]*i,
1579 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1580 memset(frame->data[2] + frame->linesize[2]*i,
1581 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1586 * generic function called after decoding
1587 * the header and before a frame is decoded.
1589 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1595 if (!ff_thread_can_start_frame(avctx)) {
1596 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1600 /* mark & release old frames */
1601 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1602 s->last_picture_ptr != s->next_picture_ptr &&
1603 s->last_picture_ptr->f->buf[0]) {
1604 ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1607 /* release forgotten pictures */
1608 /* if (mpeg124/h263) */
1609 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1610 if (&s->picture[i] != s->last_picture_ptr &&
1611 &s->picture[i] != s->next_picture_ptr &&
1612 s->picture[i].reference && !s->picture[i].needs_realloc) {
1613 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1614 av_log(avctx, AV_LOG_ERROR,
1615 "releasing zombie picture\n");
1616 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1620 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1622 release_unused_pictures(s->avctx, s->picture);
1624 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1625 // we already have a unused image
1626 // (maybe it was set before reading the header)
1627 pic = s->current_picture_ptr;
1629 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1631 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1634 pic = &s->picture[i];
1638 if (!s->droppable) {
1639 if (s->pict_type != AV_PICTURE_TYPE_B)
1643 pic->f->coded_picture_number = s->coded_picture_number++;
1645 if (ff_alloc_picture(s, pic, 0) < 0)
1648 s->current_picture_ptr = pic;
1649 // FIXME use only the vars from current_pic
1650 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1651 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1652 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1653 if (s->picture_structure != PICT_FRAME)
1654 s->current_picture_ptr->f->top_field_first =
1655 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1657 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1658 !s->progressive_sequence;
1659 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1661 s->current_picture_ptr->f->pict_type = s->pict_type;
1662 // if (s->avctx->flags && CODEC_FLAG_QSCALE)
1663 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1664 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1666 if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1667 s->current_picture_ptr)) < 0)
1670 if (s->pict_type != AV_PICTURE_TYPE_B) {
1671 s->last_picture_ptr = s->next_picture_ptr;
1673 s->next_picture_ptr = s->current_picture_ptr;
1675 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1676 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1677 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1678 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1679 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1680 s->pict_type, s->droppable);
1682 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1683 (s->pict_type != AV_PICTURE_TYPE_I ||
1684 s->picture_structure != PICT_FRAME)) {
1685 int h_chroma_shift, v_chroma_shift;
1686 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1687 &h_chroma_shift, &v_chroma_shift);
1688 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1689 av_log(avctx, AV_LOG_DEBUG,
1690 "allocating dummy last picture for B frame\n");
1691 else if (s->pict_type != AV_PICTURE_TYPE_I)
1692 av_log(avctx, AV_LOG_ERROR,
1693 "warning: first frame is no keyframe\n");
1694 else if (s->picture_structure != PICT_FRAME)
1695 av_log(avctx, AV_LOG_DEBUG,
1696 "allocate dummy last picture for field based first keyframe\n");
1698 /* Allocate a dummy frame */
1699 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1701 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1704 s->last_picture_ptr = &s->picture[i];
1706 s->last_picture_ptr->reference = 3;
1707 s->last_picture_ptr->f->key_frame = 0;
1708 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1710 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1711 s->last_picture_ptr = NULL;
1715 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1716 for(i=0; i<avctx->height; i++)
1717 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1718 0x80, avctx->width);
1719 if (s->last_picture_ptr->f->data[2]) {
1720 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1721 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1722 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1723 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1724 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1728 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1729 for(i=0; i<avctx->height; i++)
1730 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1734 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1735 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1737 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1738 s->pict_type == AV_PICTURE_TYPE_B) {
1739 /* Allocate a dummy frame */
1740 i = ff_find_unused_picture(s->avctx, s->picture, 0);
1742 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1745 s->next_picture_ptr = &s->picture[i];
1747 s->next_picture_ptr->reference = 3;
1748 s->next_picture_ptr->f->key_frame = 0;
1749 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1751 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1752 s->next_picture_ptr = NULL;
1755 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1756 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1759 #if 0 // BUFREF-FIXME
1760 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1761 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1763 if (s->last_picture_ptr) {
1764 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1765 if (s->last_picture_ptr->f->buf[0] &&
1766 (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1767 s->last_picture_ptr)) < 0)
1770 if (s->next_picture_ptr) {
1771 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1772 if (s->next_picture_ptr->f->buf[0] &&
1773 (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1774 s->next_picture_ptr)) < 0)
1778 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1779 s->last_picture_ptr->f->buf[0]));
1781 if (s->picture_structure!= PICT_FRAME) {
1783 for (i = 0; i < 4; i++) {
1784 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1785 s->current_picture.f->data[i] +=
1786 s->current_picture.f->linesize[i];
1788 s->current_picture.f->linesize[i] *= 2;
1789 s->last_picture.f->linesize[i] *= 2;
1790 s->next_picture.f->linesize[i] *= 2;
1794 /* set dequantizer, we can't do it during init as
1795 * it might change for mpeg4 and we can't do it in the header
1796 * decode as init is not called for mpeg4 there yet */
1797 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1798 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1799 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1800 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1801 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1802 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1804 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1805 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1808 if (s->avctx->debug & FF_DEBUG_NOMC) {
1809 gray_frame(s->current_picture_ptr->f);
1815 /* called after a frame has been decoded. */
1816 void ff_mpv_frame_end(MpegEncContext *s)
1820 if (s->current_picture.reference)
1821 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1826 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
1829 return clip_line(ex, ey, sx, sy, maxx);
1834 *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
1841 *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
1849 * Draw a line from (ex, ey) -> (sx, sy).
1850 * @param w width of the image
1851 * @param h height of the image
1852 * @param stride stride/linesize of the image
1853 * @param color color of the arrow
1855 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1856 int w, int h, int stride, int color)
1860 if (clip_line(&sx, &sy, &ex, &ey, w - 1))
1862 if (clip_line(&sy, &sx, &ey, &ex, h - 1))
1865 sx = av_clip(sx, 0, w - 1);
1866 sy = av_clip(sy, 0, h - 1);
1867 ex = av_clip(ex, 0, w - 1);
1868 ey = av_clip(ey, 0, h - 1);
1870 buf[sy * stride + sx] += color;
1872 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1874 FFSWAP(int, sx, ex);
1875 FFSWAP(int, sy, ey);
1877 buf += sx + sy * stride;
1879 f = ((ey - sy) << 16) / ex;
1880 for (x = 0; x <= ex; x++) {
1882 fr = (x * f) & 0xFFFF;
1883 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1884 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1888 FFSWAP(int, sx, ex);
1889 FFSWAP(int, sy, ey);
1891 buf += sx + sy * stride;
1894 f = ((ex - sx) << 16) / ey;
1897 for(y= 0; y <= ey; y++){
1899 fr = (y*f) & 0xFFFF;
1900 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1901 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1907 * Draw an arrow from (ex, ey) -> (sx, sy).
1908 * @param w width of the image
1909 * @param h height of the image
1910 * @param stride stride/linesize of the image
1911 * @param color color of the arrow
1913 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1914 int ey, int w, int h, int stride, int color, int tail, int direction)
1919 FFSWAP(int, sx, ex);
1920 FFSWAP(int, sy, ey);
1923 sx = av_clip(sx, -100, w + 100);
1924 sy = av_clip(sy, -100, h + 100);
1925 ex = av_clip(ex, -100, w + 100);
1926 ey = av_clip(ey, -100, h + 100);
1931 if (dx * dx + dy * dy > 3 * 3) {
1934 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1936 // FIXME subpixel accuracy
1937 rx = ROUNDED_DIV(rx * 3 << 4, length);
1938 ry = ROUNDED_DIV(ry * 3 << 4, length);
1945 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1946 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1948 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1952 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
1953 int dst_x, int dst_y,
1954 int src_x, int src_y,
1957 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
1958 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
1963 mb->source = direction ? 1 : -1;
1964 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
1969 * Print debugging info for the given picture.
1971 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1972 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1974 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1976 if ((avctx->flags2 & CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
1977 const int shift = 1 + quarter_sample;
1978 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1979 const int mv_stride = (mb_width << mv_sample_log2) +
1980 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1981 int mb_x, mb_y, mbcount = 0;
1983 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
1984 * for the maximum number of MB (4 MB in case of IS_8x8) */
1985 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
1989 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1990 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1991 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
1992 for (direction = 0; direction < 2; direction++) {
1993 if (!USES_LIST(mb_type, direction))
1995 if (IS_8X8(mb_type)) {
1996 for (i = 0; i < 4; i++) {
1997 int sx = mb_x * 16 + 4 + 8 * (i & 1);
1998 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
1999 int xy = (mb_x * 2 + (i & 1) +
2000 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2001 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2002 int my = (motion_val[direction][xy][1] >> shift) + sy;
2003 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
2005 } else if (IS_16X8(mb_type)) {
2006 for (i = 0; i < 2; i++) {
2007 int sx = mb_x * 16 + 8;
2008 int sy = mb_y * 16 + 4 + 8 * i;
2009 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2010 int mx = (motion_val[direction][xy][0] >> shift);
2011 int my = (motion_val[direction][xy][1] >> shift);
2013 if (IS_INTERLACED(mb_type))
2016 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
2018 } else if (IS_8X16(mb_type)) {
2019 for (i = 0; i < 2; i++) {
2020 int sx = mb_x * 16 + 4 + 8 * i;
2021 int sy = mb_y * 16 + 8;
2022 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2023 int mx = motion_val[direction][xy][0] >> shift;
2024 int my = motion_val[direction][xy][1] >> shift;
2026 if (IS_INTERLACED(mb_type))
2029 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
2032 int sx = mb_x * 16 + 8;
2033 int sy = mb_y * 16 + 8;
2034 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
2035 int mx = (motion_val[direction][xy][0]>>shift) + sx;
2036 int my = (motion_val[direction][xy][1]>>shift) + sy;
2037 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
2044 AVFrameSideData *sd;
2046 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
2047 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
2052 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
2058 /* TODO: export all the following to make them accessible for users (and filters) */
2059 if (avctx->hwaccel || !mbtype_table
2060 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
2064 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
2067 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
2068 av_get_picture_type_char(pict->pict_type));
2069 for (y = 0; y < mb_height; y++) {
2070 for (x = 0; x < mb_width; x++) {
2071 if (avctx->debug & FF_DEBUG_SKIP) {
2072 int count = mbskip_table ? mbskip_table[x + y * mb_stride] : 0;
2075 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
2077 if (avctx->debug & FF_DEBUG_QP) {
2078 av_log(avctx, AV_LOG_DEBUG, "%2d",
2079 qscale_table[x + y * mb_stride]);
2081 if (avctx->debug & FF_DEBUG_MB_TYPE) {
2082 int mb_type = mbtype_table[x + y * mb_stride];
2083 // Type & MV direction
2084 if (IS_PCM(mb_type))
2085 av_log(avctx, AV_LOG_DEBUG, "P");
2086 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
2087 av_log(avctx, AV_LOG_DEBUG, "A");
2088 else if (IS_INTRA4x4(mb_type))
2089 av_log(avctx, AV_LOG_DEBUG, "i");
2090 else if (IS_INTRA16x16(mb_type))
2091 av_log(avctx, AV_LOG_DEBUG, "I");
2092 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
2093 av_log(avctx, AV_LOG_DEBUG, "d");
2094 else if (IS_DIRECT(mb_type))
2095 av_log(avctx, AV_LOG_DEBUG, "D");
2096 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
2097 av_log(avctx, AV_LOG_DEBUG, "g");
2098 else if (IS_GMC(mb_type))
2099 av_log(avctx, AV_LOG_DEBUG, "G");
2100 else if (IS_SKIP(mb_type))
2101 av_log(avctx, AV_LOG_DEBUG, "S");
2102 else if (!USES_LIST(mb_type, 1))
2103 av_log(avctx, AV_LOG_DEBUG, ">");
2104 else if (!USES_LIST(mb_type, 0))
2105 av_log(avctx, AV_LOG_DEBUG, "<");
2107 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2108 av_log(avctx, AV_LOG_DEBUG, "X");
2112 if (IS_8X8(mb_type))
2113 av_log(avctx, AV_LOG_DEBUG, "+");
2114 else if (IS_16X8(mb_type))
2115 av_log(avctx, AV_LOG_DEBUG, "-");
2116 else if (IS_8X16(mb_type))
2117 av_log(avctx, AV_LOG_DEBUG, "|");
2118 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
2119 av_log(avctx, AV_LOG_DEBUG, " ");
2121 av_log(avctx, AV_LOG_DEBUG, "?");
2124 if (IS_INTERLACED(mb_type))
2125 av_log(avctx, AV_LOG_DEBUG, "=");
2127 av_log(avctx, AV_LOG_DEBUG, " ");
2130 av_log(avctx, AV_LOG_DEBUG, "\n");
2134 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
2135 (avctx->debug_mv)) {
2138 int h_chroma_shift, v_chroma_shift, block_height;
2140 const int shift = 1 + quarter_sample;
2142 const int width = avctx->width;
2143 const int height = avctx->height;
2145 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2146 const int mv_stride = (mb_width << mv_sample_log2) +
2147 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2149 *low_delay = 0; // needed to see the vectors without trashing the buffers
2151 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
2153 av_frame_make_writable(pict);
2155 pict->opaque = NULL;
2157 ptr = pict->data[0];
2159 block_height = 16 >> v_chroma_shift;
2161 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2163 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2164 const int mb_index = mb_x + mb_y * mb_stride;
2166 if ((avctx->debug_mv) && motion_val[0]) {
2168 for (type = 0; type < 3; type++) {
2172 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
2173 (pict->pict_type!= AV_PICTURE_TYPE_P))
2178 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
2179 (pict->pict_type!= AV_PICTURE_TYPE_B))
2184 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2185 (pict->pict_type!= AV_PICTURE_TYPE_B))
2190 if (!USES_LIST(mbtype_table[mb_index], direction))
2193 if (IS_8X8(mbtype_table[mb_index])) {
2195 for (i = 0; i < 4; i++) {
2196 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2197 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2198 int xy = (mb_x * 2 + (i & 1) +
2199 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2200 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2201 int my = (motion_val[direction][xy][1] >> shift) + sy;
2202 draw_arrow(ptr, sx, sy, mx, my, width,
2203 height, pict->linesize[0], 100, 0, direction);
2205 } else if (IS_16X8(mbtype_table[mb_index])) {
2207 for (i = 0; i < 2; i++) {
2208 int sx = mb_x * 16 + 8;
2209 int sy = mb_y * 16 + 4 + 8 * i;
2210 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2211 int mx = (motion_val[direction][xy][0] >> shift);
2212 int my = (motion_val[direction][xy][1] >> shift);
2214 if (IS_INTERLACED(mbtype_table[mb_index]))
2217 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2218 height, pict->linesize[0], 100, 0, direction);
2220 } else if (IS_8X16(mbtype_table[mb_index])) {
2222 for (i = 0; i < 2; i++) {
2223 int sx = mb_x * 16 + 4 + 8 * i;
2224 int sy = mb_y * 16 + 8;
2225 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2226 int mx = motion_val[direction][xy][0] >> shift;
2227 int my = motion_val[direction][xy][1] >> shift;
2229 if (IS_INTERLACED(mbtype_table[mb_index]))
2232 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2233 height, pict->linesize[0], 100, 0, direction);
2236 int sx= mb_x * 16 + 8;
2237 int sy= mb_y * 16 + 8;
2238 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2239 int mx= (motion_val[direction][xy][0]>>shift) + sx;
2240 int my= (motion_val[direction][xy][1]>>shift) + sy;
2241 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
2246 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2247 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
2248 0x0101010101010101ULL;
2250 for (y = 0; y < block_height; y++) {
2251 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2252 (block_height * mb_y + y) *
2253 pict->linesize[1]) = c;
2254 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2255 (block_height * mb_y + y) *
2256 pict->linesize[2]) = c;
2259 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2261 int mb_type = mbtype_table[mb_index];
2264 #define COLOR(theta, r) \
2265 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2266 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2270 if (IS_PCM(mb_type)) {
2272 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2273 IS_INTRA16x16(mb_type)) {
2275 } else if (IS_INTRA4x4(mb_type)) {
2277 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2279 } else if (IS_DIRECT(mb_type)) {
2281 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2283 } else if (IS_GMC(mb_type)) {
2285 } else if (IS_SKIP(mb_type)) {
2287 } else if (!USES_LIST(mb_type, 1)) {
2289 } else if (!USES_LIST(mb_type, 0)) {
2292 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2296 u *= 0x0101010101010101ULL;
2297 v *= 0x0101010101010101ULL;
2298 for (y = 0; y < block_height; y++) {
2299 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2300 (block_height * mb_y + y) * pict->linesize[1]) = u;
2301 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2302 (block_height * mb_y + y) * pict->linesize[2]) = v;
2306 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2307 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2308 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2309 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2310 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2312 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2313 for (y = 0; y < 16; y++)
2314 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2315 pict->linesize[0]] ^= 0x80;
2317 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2318 int dm = 1 << (mv_sample_log2 - 2);
2319 for (i = 0; i < 4; i++) {
2320 int sx = mb_x * 16 + 8 * (i & 1);
2321 int sy = mb_y * 16 + 8 * (i >> 1);
2322 int xy = (mb_x * 2 + (i & 1) +
2323 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2325 int32_t *mv = (int32_t *) &motion_val[0][xy];
2326 if (mv[0] != mv[dm] ||
2327 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2328 for (y = 0; y < 8; y++)
2329 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2330 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2331 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2332 pict->linesize[0]) ^= 0x8080808080808080ULL;
2336 if (IS_INTERLACED(mb_type) &&
2337 avctx->codec->id == AV_CODEC_ID_H264) {
2342 mbskip_table[mb_index] = 0;
2348 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2350 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
2351 p->qscale_table, p->motion_val, &s->low_delay,
2352 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2355 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2357 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2358 int offset = 2*s->mb_stride + 1;
2360 return AVERROR(ENOMEM);
2361 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2362 ref->size -= offset;
2363 ref->data += offset;
2364 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2367 static inline int hpel_motion_lowres(MpegEncContext *s,
2368 uint8_t *dest, uint8_t *src,
2369 int field_based, int field_select,
2370 int src_x, int src_y,
2371 int width, int height, ptrdiff_t stride,
2372 int h_edge_pos, int v_edge_pos,
2373 int w, int h, h264_chroma_mc_func *pix_op,
2374 int motion_x, int motion_y)
2376 const int lowres = s->avctx->lowres;
2377 const int op_index = FFMIN(lowres, 3);
2378 const int s_mask = (2 << lowres) - 1;
2382 if (s->quarter_sample) {
2387 sx = motion_x & s_mask;
2388 sy = motion_y & s_mask;
2389 src_x += motion_x >> lowres + 1;
2390 src_y += motion_y >> lowres + 1;
2392 src += src_y * stride + src_x;
2394 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2395 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2396 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
2397 s->linesize, s->linesize,
2398 w + 1, (h + 1) << field_based,
2399 src_x, src_y << field_based,
2400 h_edge_pos, v_edge_pos);
2401 src = s->edge_emu_buffer;
2405 sx = (sx << 2) >> lowres;
2406 sy = (sy << 2) >> lowres;
2409 pix_op[op_index](dest, src, stride, h, sx, sy);
2413 /* apply one mpeg motion vector to the three components */
2414 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2421 uint8_t **ref_picture,
2422 h264_chroma_mc_func *pix_op,
2423 int motion_x, int motion_y,
2426 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2427 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2428 ptrdiff_t uvlinesize, linesize;
2429 const int lowres = s->avctx->lowres;
2430 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2431 const int block_s = 8>>lowres;
2432 const int s_mask = (2 << lowres) - 1;
2433 const int h_edge_pos = s->h_edge_pos >> lowres;
2434 const int v_edge_pos = s->v_edge_pos >> lowres;
2435 linesize = s->current_picture.f->linesize[0] << field_based;
2436 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2438 // FIXME obviously not perfect but qpel will not work in lowres anyway
2439 if (s->quarter_sample) {
2445 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2448 sx = motion_x & s_mask;
2449 sy = motion_y & s_mask;
2450 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2451 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2453 if (s->out_format == FMT_H263) {
2454 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2455 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2456 uvsrc_x = src_x >> 1;
2457 uvsrc_y = src_y >> 1;
2458 } else if (s->out_format == FMT_H261) {
2459 // even chroma mv's are full pel in H261
2462 uvsx = (2 * mx) & s_mask;
2463 uvsy = (2 * my) & s_mask;
2464 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2465 uvsrc_y = mb_y * block_s + (my >> lowres);
2467 if(s->chroma_y_shift){
2472 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2473 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2475 if(s->chroma_x_shift){
2479 uvsy = motion_y & s_mask;
2481 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2484 uvsx = motion_x & s_mask;
2485 uvsy = motion_y & s_mask;
2492 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2493 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2494 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2496 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2497 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2498 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2499 linesize >> field_based, linesize >> field_based,
2500 17, 17 + field_based,
2501 src_x, src_y << field_based, h_edge_pos,
2503 ptr_y = s->edge_emu_buffer;
2504 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2505 uint8_t *ubuf = s->edge_emu_buffer + 18 * s->linesize;
2506 uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
2507 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2508 uvlinesize >> field_based, uvlinesize >> field_based,
2510 uvsrc_x, uvsrc_y << field_based,
2511 h_edge_pos >> 1, v_edge_pos >> 1);
2512 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2513 uvlinesize >> field_based,uvlinesize >> field_based,
2515 uvsrc_x, uvsrc_y << field_based,
2516 h_edge_pos >> 1, v_edge_pos >> 1);
2522 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2524 dest_y += s->linesize;
2525 dest_cb += s->uvlinesize;
2526 dest_cr += s->uvlinesize;
2530 ptr_y += s->linesize;
2531 ptr_cb += s->uvlinesize;
2532 ptr_cr += s->uvlinesize;
2535 sx = (sx << 2) >> lowres;
2536 sy = (sy << 2) >> lowres;
2537 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2539 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
2540 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2541 uvsx = (uvsx << 2) >> lowres;
2542 uvsy = (uvsy << 2) >> lowres;
2544 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2545 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2548 // FIXME h261 lowres loop filter
2551 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2552 uint8_t *dest_cb, uint8_t *dest_cr,
2553 uint8_t **ref_picture,
2554 h264_chroma_mc_func * pix_op,
2557 const int lowres = s->avctx->lowres;
2558 const int op_index = FFMIN(lowres, 3);
2559 const int block_s = 8 >> lowres;
2560 const int s_mask = (2 << lowres) - 1;
2561 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2562 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2563 int emu = 0, src_x, src_y, sx, sy;
2567 if (s->quarter_sample) {
2572 /* In case of 8X8, we construct a single chroma motion vector
2573 with a special rounding */
2574 mx = ff_h263_round_chroma(mx);
2575 my = ff_h263_round_chroma(my);
2579 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2580 src_y = s->mb_y * block_s + (my >> lowres + 1);
2582 offset = src_y * s->uvlinesize + src_x;
2583 ptr = ref_picture[1] + offset;
2584 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2585 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2586 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2587 s->uvlinesize, s->uvlinesize,
2589 src_x, src_y, h_edge_pos, v_edge_pos);
2590 ptr = s->edge_emu_buffer;
2593 sx = (sx << 2) >> lowres;
2594 sy = (sy << 2) >> lowres;
2595 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2597 ptr = ref_picture[2] + offset;
2599 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2600 s->uvlinesize, s->uvlinesize,
2602 src_x, src_y, h_edge_pos, v_edge_pos);
2603 ptr = s->edge_emu_buffer;
2605 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2609 * motion compensation of a single macroblock
2611 * @param dest_y luma destination pointer
2612 * @param dest_cb chroma cb/u destination pointer
2613 * @param dest_cr chroma cr/v destination pointer
2614 * @param dir direction (0->forward, 1->backward)
2615 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2616 * @param pix_op halfpel motion compensation function (average or put normally)
2617 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2619 static inline void MPV_motion_lowres(MpegEncContext *s,
2620 uint8_t *dest_y, uint8_t *dest_cb,
2622 int dir, uint8_t **ref_picture,
2623 h264_chroma_mc_func *pix_op)
2627 const int lowres = s->avctx->lowres;
2628 const int block_s = 8 >>lowres;
2633 switch (s->mv_type) {
2635 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2637 ref_picture, pix_op,
2638 s->mv[dir][0][0], s->mv[dir][0][1],
2644 for (i = 0; i < 4; i++) {
2645 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2646 s->linesize) * block_s,
2647 ref_picture[0], 0, 0,
2648 (2 * mb_x + (i & 1)) * block_s,
2649 (2 * mb_y + (i >> 1)) * block_s,
2650 s->width, s->height, s->linesize,
2651 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2652 block_s, block_s, pix_op,
2653 s->mv[dir][i][0], s->mv[dir][i][1]);
2655 mx += s->mv[dir][i][0];
2656 my += s->mv[dir][i][1];
2659 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY))
2660 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2664 if (s->picture_structure == PICT_FRAME) {
2666 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2667 1, 0, s->field_select[dir][0],
2668 ref_picture, pix_op,
2669 s->mv[dir][0][0], s->mv[dir][0][1],
2672 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2673 1, 1, s->field_select[dir][1],
2674 ref_picture, pix_op,
2675 s->mv[dir][1][0], s->mv[dir][1][1],
2678 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2679 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2680 ref_picture = s->current_picture_ptr->f->data;
2683 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2684 0, 0, s->field_select[dir][0],
2685 ref_picture, pix_op,
2687 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2691 for (i = 0; i < 2; i++) {
2692 uint8_t **ref2picture;
2694 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2695 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2696 ref2picture = ref_picture;
2698 ref2picture = s->current_picture_ptr->f->data;
2701 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2702 0, 0, s->field_select[dir][i],
2703 ref2picture, pix_op,
2704 s->mv[dir][i][0], s->mv[dir][i][1] +
2705 2 * block_s * i, block_s, mb_y >> 1);
2707 dest_y += 2 * block_s * s->linesize;
2708 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2709 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2713 if (s->picture_structure == PICT_FRAME) {
2714 for (i = 0; i < 2; i++) {
2716 for (j = 0; j < 2; j++) {
2717 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2719 ref_picture, pix_op,
2720 s->mv[dir][2 * i + j][0],
2721 s->mv[dir][2 * i + j][1],
2724 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2727 for (i = 0; i < 2; i++) {
2728 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2729 0, 0, s->picture_structure != i + 1,
2730 ref_picture, pix_op,
2731 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2732 2 * block_s, mb_y >> 1);
2734 // after put we make avg of the same block
2735 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2737 // opposite parity is always in the same
2738 // frame if this is second field
2739 if (!s->first_field) {
2740 ref_picture = s->current_picture_ptr->f->data;
2751 * find the lowest MB row referenced in the MVs
2753 int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
2755 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2756 int my, off, i, mvs;
2758 if (s->picture_structure != PICT_FRAME || s->mcsel)
2761 switch (s->mv_type) {
2775 for (i = 0; i < mvs; i++) {
2776 my = s->mv[dir][i][1];
2777 my_max = FFMAX(my_max, my);
2778 my_min = FFMIN(my_min, my);
2781 off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
2783 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
2785 return s->mb_height-1;
2788 /* put block[] to dest[] */
2789 static inline void put_dct(MpegEncContext *s,
2790 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2792 s->dct_unquantize_intra(s, block, i, qscale);
2793 s->idsp.idct_put(dest, line_size, block);
2796 /* add block[] to dest[] */
2797 static inline void add_dct(MpegEncContext *s,
2798 int16_t *block, int i, uint8_t *dest, int line_size)
2800 if (s->block_last_index[i] >= 0) {
2801 s->idsp.idct_add(dest, line_size, block);
2805 static inline void add_dequant_dct(MpegEncContext *s,
2806 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2808 if (s->block_last_index[i] >= 0) {
2809 s->dct_unquantize_inter(s, block, i, qscale);
2811 s->idsp.idct_add(dest, line_size, block);
2816 * Clean dc, ac, coded_block for the current non-intra MB.
2818 void ff_clean_intra_table_entries(MpegEncContext *s)
2820 int wrap = s->b8_stride;
2821 int xy = s->block_index[0];
2824 s->dc_val[0][xy + 1 ] =
2825 s->dc_val[0][xy + wrap] =
2826 s->dc_val[0][xy + 1 + wrap] = 1024;
2828 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2829 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2830 if (s->msmpeg4_version>=3) {
2831 s->coded_block[xy ] =
2832 s->coded_block[xy + 1 ] =
2833 s->coded_block[xy + wrap] =
2834 s->coded_block[xy + 1 + wrap] = 0;
2837 wrap = s->mb_stride;
2838 xy = s->mb_x + s->mb_y * wrap;
2840 s->dc_val[2][xy] = 1024;
2842 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2843 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2845 s->mbintra_table[xy]= 0;
2848 /* generic function called after a macroblock has been parsed by the
2849 decoder or after it has been encoded by the encoder.
2851 Important variables used:
2852 s->mb_intra : true if intra macroblock
2853 s->mv_dir : motion vector direction
2854 s->mv_type : motion vector type
2855 s->mv : motion vector
2856 s->interlaced_dct : true if interlaced dct used (mpeg2)
2858 static av_always_inline
2859 void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2860 int lowres_flag, int is_mpeg12)
2862 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2865 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2866 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2870 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2871 /* print DCT coefficients */
2873 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2875 for(j=0; j<64; j++){
2876 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
2877 block[i][s->idsp.idct_permutation[j]]);
2879 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2883 s->current_picture.qscale_table[mb_xy] = s->qscale;
2885 /* update DC predictors for P macroblocks */
2887 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2888 if(s->mbintra_table[mb_xy])
2889 ff_clean_intra_table_entries(s);
2893 s->last_dc[2] = 128 << s->intra_dc_precision;
2896 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2897 s->mbintra_table[mb_xy]=1;
2899 if ((s->avctx->flags & CODEC_FLAG_PSNR) || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor ||
2900 !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
2901 s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
2902 uint8_t *dest_y, *dest_cb, *dest_cr;
2903 int dct_linesize, dct_offset;
2904 op_pixels_func (*op_pix)[4];
2905 qpel_mc_func (*op_qpix)[16];
2906 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2907 const int uvlinesize = s->current_picture.f->linesize[1];
2908 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2909 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2911 /* avoid copy if macroblock skipped in last frame too */
2912 /* skip only during decoding as we might trash the buffers during encoding a bit */
2914 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2916 if (s->mb_skipped) {
2918 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2920 } else if(!s->current_picture.reference) {
2923 *mbskip_ptr = 0; /* not skipped */
2927 dct_linesize = linesize << s->interlaced_dct;
2928 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2932 dest_cb= s->dest[1];
2933 dest_cr= s->dest[2];
2935 dest_y = s->b_scratchpad;
2936 dest_cb= s->b_scratchpad+16*linesize;
2937 dest_cr= s->b_scratchpad+32*linesize;
2941 /* motion handling */
2942 /* decoding or more than one mb_type (MC was already done otherwise) */
2945 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2946 if (s->mv_dir & MV_DIR_FORWARD) {
2947 ff_thread_await_progress(&s->last_picture_ptr->tf,
2948 ff_mpv_lowest_referenced_row(s, 0),
2951 if (s->mv_dir & MV_DIR_BACKWARD) {
2952 ff_thread_await_progress(&s->next_picture_ptr->tf,
2953 ff_mpv_lowest_referenced_row(s, 1),
2959 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2961 if (s->mv_dir & MV_DIR_FORWARD) {
2962 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2963 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2965 if (s->mv_dir & MV_DIR_BACKWARD) {
2966 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2969 op_qpix = s->me.qpel_put;
2970 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2971 op_pix = s->hdsp.put_pixels_tab;
2973 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2975 if (s->mv_dir & MV_DIR_FORWARD) {
2976 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2977 op_pix = s->hdsp.avg_pixels_tab;
2978 op_qpix= s->me.qpel_avg;
2980 if (s->mv_dir & MV_DIR_BACKWARD) {
2981 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2986 /* skip dequant / idct if we are really late ;) */
2987 if(s->avctx->skip_idct){
2988 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2989 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2990 || s->avctx->skip_idct >= AVDISCARD_ALL)
2994 /* add dct residue */
2995 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2996 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2997 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2998 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2999 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
3000 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
3002 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
3003 if (s->chroma_y_shift){
3004 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
3005 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
3009 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
3010 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
3011 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3012 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
3015 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
3016 add_dct(s, block[0], 0, dest_y , dct_linesize);
3017 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
3018 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
3019 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
3021 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
3022 if(s->chroma_y_shift){//Chroma420
3023 add_dct(s, block[4], 4, dest_cb, uvlinesize);
3024 add_dct(s, block[5], 5, dest_cr, uvlinesize);
3027 dct_linesize = uvlinesize << s->interlaced_dct;
3028 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3030 add_dct(s, block[4], 4, dest_cb, dct_linesize);
3031 add_dct(s, block[5], 5, dest_cr, dct_linesize);
3032 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
3033 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
3034 if(!s->chroma_x_shift){//Chroma444
3035 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
3036 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
3037 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
3038 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
3043 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
3044 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
3047 /* dct only in intra block */
3048 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
3049 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
3050 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
3051 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
3052 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
3054 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
3055 if(s->chroma_y_shift){
3056 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
3057 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
3061 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
3062 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
3063 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3064 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
3068 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
3069 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
3070 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
3071 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
3073 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
3074 if(s->chroma_y_shift){
3075 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
3076 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
3079 dct_linesize = uvlinesize << s->interlaced_dct;
3080 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3082 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
3083 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
3084 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
3085 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
3086 if(!s->chroma_x_shift){//Chroma444
3087 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
3088 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
3089 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
3090 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
3098 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
3099 if (!CONFIG_GRAY || !(s->avctx->flags & CODEC_FLAG_GRAY)) {
3100 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
3101 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
3107 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
3110 if(s->out_format == FMT_MPEG1) {
3111 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 1);
3112 else mpv_decode_mb_internal(s, block, 0, 1);
3115 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 0);
3116 else mpv_decode_mb_internal(s, block, 0, 0);
3119 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
3121 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
3122 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
3123 s->first_field, s->low_delay);
3126 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3127 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3128 const int uvlinesize = s->current_picture.f->linesize[1];
3129 const int mb_size= 4 - s->avctx->lowres;
3131 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3132 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3133 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3134 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3135 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3136 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;
3137 //block_index is not used by mpeg2, so it is not affected by chroma_format
3139 s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) << mb_size);
3140 s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
3141 s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (mb_size - s->chroma_x_shift));
3143 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3145 if(s->picture_structure==PICT_FRAME){
3146 s->dest[0] += s->mb_y * linesize << mb_size;
3147 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3148 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3150 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3151 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3152 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3153 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3159 * Permute an 8x8 block.
3160 * @param block the block which will be permuted according to the given permutation vector
3161 * @param permutation the permutation vector
3162 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3163 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3164 * (inverse) permutated to scantable order!
3166 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3172 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3174 for(i=0; i<=last; i++){
3175 const int j= scantable[i];
3180 for(i=0; i<=last; i++){
3181 const int j= scantable[i];
3182 const int perm_j= permutation[j];
3183 block[perm_j]= temp[j];
3187 void ff_mpeg_flush(AVCodecContext *avctx){
3189 MpegEncContext *s = avctx->priv_data;
3191 if (!s || !s->picture)
3194 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3195 ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
3196 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3198 ff_mpeg_unref_picture(s->avctx, &s->current_picture);
3199 ff_mpeg_unref_picture(s->avctx, &s->last_picture);
3200 ff_mpeg_unref_picture(s->avctx, &s->next_picture);
3202 s->mb_x= s->mb_y= 0;
3205 s->parse_context.state= -1;
3206 s->parse_context.frame_start_found= 0;
3207 s->parse_context.overread= 0;
3208 s->parse_context.overread_index= 0;
3209 s->parse_context.index= 0;
3210 s->parse_context.last_index= 0;
3211 s->bitstream_buffer_size=0;
3216 * set qscale and update qscale dependent variables.
3218 void ff_set_qscale(MpegEncContext * s, int qscale)
3222 else if (qscale > 31)
3226 s->chroma_qscale= s->chroma_qscale_table[qscale];
3228 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3229 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3232 void ff_mpv_report_decode_progress(MpegEncContext *s)
3234 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3235 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);