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/timer.h"
37 #include "h264chroma.h"
40 #include "mpegutils.h"
41 #include "mpegvideo.h"
47 static const uint8_t ff_default_chroma_qscale_table[32] = {
48 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
49 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
50 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
53 const uint8_t ff_mpeg1_dc_scale_table[128] = {
54 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
55 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
56 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
57 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
58 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
59 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
60 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
61 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
62 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
65 static const uint8_t mpeg2_dc_scale_table1[128] = {
66 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
67 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
68 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
69 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
70 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
71 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
72 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
73 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
74 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
77 static const uint8_t mpeg2_dc_scale_table2[128] = {
78 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
79 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
80 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
81 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
82 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
83 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
84 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
85 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
86 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
89 static const uint8_t mpeg2_dc_scale_table3[128] = {
90 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
91 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
92 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
93 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
94 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
95 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
96 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
97 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
98 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
101 const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
102 ff_mpeg1_dc_scale_table,
103 mpeg2_dc_scale_table1,
104 mpeg2_dc_scale_table2,
105 mpeg2_dc_scale_table3,
108 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
109 int16_t *block, int n, int qscale)
111 int i, level, nCoeffs;
112 const uint16_t *quant_matrix;
114 nCoeffs= s->block_last_index[n];
116 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
117 /* XXX: only mpeg1 */
118 quant_matrix = s->intra_matrix;
119 for(i=1;i<=nCoeffs;i++) {
120 int j= s->intra_scantable.permutated[i];
125 level = (int)(level * qscale * quant_matrix[j]) >> 3;
126 level = (level - 1) | 1;
129 level = (int)(level * qscale * quant_matrix[j]) >> 3;
130 level = (level - 1) | 1;
137 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
138 int16_t *block, int n, int qscale)
140 int i, level, nCoeffs;
141 const uint16_t *quant_matrix;
143 nCoeffs= s->block_last_index[n];
145 quant_matrix = s->inter_matrix;
146 for(i=0; i<=nCoeffs; i++) {
147 int j= s->intra_scantable.permutated[i];
152 level = (((level << 1) + 1) * qscale *
153 ((int) (quant_matrix[j]))) >> 4;
154 level = (level - 1) | 1;
157 level = (((level << 1) + 1) * qscale *
158 ((int) (quant_matrix[j]))) >> 4;
159 level = (level - 1) | 1;
166 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
167 int16_t *block, int n, int qscale)
169 int i, level, nCoeffs;
170 const uint16_t *quant_matrix;
172 if(s->alternate_scan) nCoeffs= 63;
173 else nCoeffs= s->block_last_index[n];
175 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
176 quant_matrix = s->intra_matrix;
177 for(i=1;i<=nCoeffs;i++) {
178 int j= s->intra_scantable.permutated[i];
183 level = (int)(level * qscale * quant_matrix[j]) >> 3;
186 level = (int)(level * qscale * quant_matrix[j]) >> 3;
193 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
194 int16_t *block, int n, int qscale)
196 int i, level, nCoeffs;
197 const uint16_t *quant_matrix;
200 if(s->alternate_scan) nCoeffs= 63;
201 else nCoeffs= s->block_last_index[n];
203 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
205 quant_matrix = s->intra_matrix;
206 for(i=1;i<=nCoeffs;i++) {
207 int j= s->intra_scantable.permutated[i];
212 level = (int)(level * qscale * quant_matrix[j]) >> 3;
215 level = (int)(level * qscale * quant_matrix[j]) >> 3;
224 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
225 int16_t *block, int n, int qscale)
227 int i, level, nCoeffs;
228 const uint16_t *quant_matrix;
231 if(s->alternate_scan) nCoeffs= 63;
232 else nCoeffs= s->block_last_index[n];
234 quant_matrix = s->inter_matrix;
235 for(i=0; i<=nCoeffs; i++) {
236 int j= s->intra_scantable.permutated[i];
241 level = (((level << 1) + 1) * qscale *
242 ((int) (quant_matrix[j]))) >> 4;
245 level = (((level << 1) + 1) * qscale *
246 ((int) (quant_matrix[j]))) >> 4;
255 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
256 int16_t *block, int n, int qscale)
258 int i, level, qmul, qadd;
261 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
266 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
267 qadd = (qscale - 1) | 1;
274 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
276 for(i=1; i<=nCoeffs; i++) {
280 level = level * qmul - qadd;
282 level = level * qmul + qadd;
289 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
290 int16_t *block, int n, int qscale)
292 int i, level, qmul, qadd;
295 av_assert2(s->block_last_index[n]>=0);
297 qadd = (qscale - 1) | 1;
300 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
302 for(i=0; i<=nCoeffs; i++) {
306 level = level * qmul - qadd;
308 level = level * qmul + qadd;
315 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
317 int mb_x, int mb_y, int mb_intra, int mb_skipped)
319 MpegEncContext *s = opaque;
322 s->mv_type = mv_type;
323 s->mb_intra = mb_intra;
324 s->mb_skipped = mb_skipped;
327 memcpy(s->mv, mv, sizeof(*mv));
329 ff_init_block_index(s);
330 ff_update_block_index(s);
332 s->dsp.clear_blocks(s->block[0]);
334 s->dest[0] = s->current_picture.f->data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
335 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);
336 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);
339 av_log(s->avctx, AV_LOG_DEBUG, "Interlaced error concealment is not fully implemented\n");
340 ff_MPV_decode_mb(s, s->block);
343 /* init common dct for both encoder and decoder */
344 av_cold int ff_dct_common_init(MpegEncContext *s)
346 ff_dsputil_init(&s->dsp, s->avctx);
347 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
348 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
349 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
351 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
352 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
353 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
354 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
355 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
356 if (s->flags & CODEC_FLAG_BITEXACT)
357 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
358 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
361 ff_MPV_common_init_axp(s);
363 ff_MPV_common_init_arm(s);
365 ff_MPV_common_init_ppc(s);
367 ff_MPV_common_init_x86(s);
369 /* load & permutate scantables
370 * note: only wmv uses different ones
372 if (s->alternate_scan) {
373 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
374 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
376 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
377 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
379 ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
380 ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
385 static int frame_size_alloc(MpegEncContext *s, int linesize)
387 int alloc_size = FFALIGN(FFABS(linesize) + 64, 32);
389 // edge emu needs blocksize + filter length - 1
390 // (= 17x17 for halfpel / 21x21 for h264)
391 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
392 // at uvlinesize. It supports only YUV420 so 24x24 is enough
393 // linesize * interlaced * MBsize
394 FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 4 * 24,
397 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 4 * 16 * 2,
399 s->me.temp = s->me.scratchpad;
400 s->rd_scratchpad = s->me.scratchpad;
401 s->b_scratchpad = s->me.scratchpad;
402 s->obmc_scratchpad = s->me.scratchpad + 16;
406 av_freep(&s->edge_emu_buffer);
407 return AVERROR(ENOMEM);
411 * Allocate a frame buffer
413 static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
415 int edges_needed = av_codec_is_encoder(s->avctx->codec);
419 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
420 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
421 s->codec_id != AV_CODEC_ID_MSS2) {
423 pic->f->width = s->avctx->width + 2 * EDGE_WIDTH;
424 pic->f->height = s->avctx->height + 2 * EDGE_WIDTH;
427 r = ff_thread_get_buffer(s->avctx, &pic->tf,
428 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
430 pic->f->width = s->avctx->width;
431 pic->f->height = s->avctx->height;
432 pic->f->format = s->avctx->pix_fmt;
433 r = avcodec_default_get_buffer2(s->avctx, pic->f, 0);
436 if (r < 0 || !pic->f->buf[0]) {
437 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
444 for (i = 0; pic->f->data[i]; i++) {
445 int offset = (EDGE_WIDTH >> (i ? s->chroma_y_shift : 0)) *
446 pic->f->linesize[i] +
447 (EDGE_WIDTH >> (i ? s->chroma_x_shift : 0));
448 pic->f->data[i] += offset;
450 pic->f->width = s->avctx->width;
451 pic->f->height = s->avctx->height;
454 if (s->avctx->hwaccel) {
455 assert(!pic->hwaccel_picture_private);
456 if (s->avctx->hwaccel->priv_data_size) {
457 pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size);
458 if (!pic->hwaccel_priv_buf) {
459 av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
462 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
466 if (s->linesize && (s->linesize != pic->f->linesize[0] ||
467 s->uvlinesize != pic->f->linesize[1])) {
468 av_log(s->avctx, AV_LOG_ERROR,
469 "get_buffer() failed (stride changed)\n");
470 ff_mpeg_unref_picture(s, pic);
474 if (pic->f->linesize[1] != pic->f->linesize[2]) {
475 av_log(s->avctx, AV_LOG_ERROR,
476 "get_buffer() failed (uv stride mismatch)\n");
477 ff_mpeg_unref_picture(s, pic);
481 if (!s->edge_emu_buffer &&
482 (ret = frame_size_alloc(s, pic->f->linesize[0])) < 0) {
483 av_log(s->avctx, AV_LOG_ERROR,
484 "get_buffer() failed to allocate context scratch buffers.\n");
485 ff_mpeg_unref_picture(s, pic);
492 void ff_free_picture_tables(Picture *pic)
496 pic->alloc_mb_width =
497 pic->alloc_mb_height = 0;
499 av_buffer_unref(&pic->mb_var_buf);
500 av_buffer_unref(&pic->mc_mb_var_buf);
501 av_buffer_unref(&pic->mb_mean_buf);
502 av_buffer_unref(&pic->mbskip_table_buf);
503 av_buffer_unref(&pic->qscale_table_buf);
504 av_buffer_unref(&pic->mb_type_buf);
506 for (i = 0; i < 2; i++) {
507 av_buffer_unref(&pic->motion_val_buf[i]);
508 av_buffer_unref(&pic->ref_index_buf[i]);
512 static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
514 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
515 const int mb_array_size = s->mb_stride * s->mb_height;
516 const int b8_array_size = s->b8_stride * s->mb_height * 2;
520 pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
521 pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride);
522 pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) *
524 if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
525 return AVERROR(ENOMEM);
528 pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
529 pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
530 pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
531 if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
532 return AVERROR(ENOMEM);
535 if (s->out_format == FMT_H263 || s->encoding || s->avctx->debug_mv) {
536 int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
537 int ref_index_size = 4 * mb_array_size;
539 for (i = 0; mv_size && i < 2; i++) {
540 pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
541 pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size);
542 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
543 return AVERROR(ENOMEM);
547 pic->alloc_mb_width = s->mb_width;
548 pic->alloc_mb_height = s->mb_height;
553 static int make_tables_writable(Picture *pic)
556 #define MAKE_WRITABLE(table) \
559 (ret = av_buffer_make_writable(&pic->table)) < 0)\
563 MAKE_WRITABLE(mb_var_buf);
564 MAKE_WRITABLE(mc_mb_var_buf);
565 MAKE_WRITABLE(mb_mean_buf);
566 MAKE_WRITABLE(mbskip_table_buf);
567 MAKE_WRITABLE(qscale_table_buf);
568 MAKE_WRITABLE(mb_type_buf);
570 for (i = 0; i < 2; i++) {
571 MAKE_WRITABLE(motion_val_buf[i]);
572 MAKE_WRITABLE(ref_index_buf[i]);
579 * Allocate a Picture.
580 * The pixels are allocated/set by calling get_buffer() if shared = 0
582 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
586 if (pic->qscale_table_buf)
587 if ( pic->alloc_mb_width != s->mb_width
588 || pic->alloc_mb_height != s->mb_height)
589 ff_free_picture_tables(pic);
592 av_assert0(pic->f->data[0]);
595 av_assert0(!pic->f->buf[0]);
597 if (alloc_frame_buffer(s, pic) < 0)
600 s->linesize = pic->f->linesize[0];
601 s->uvlinesize = pic->f->linesize[1];
604 if (!pic->qscale_table_buf)
605 ret = alloc_picture_tables(s, pic);
607 ret = make_tables_writable(pic);
612 pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
613 pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
614 pic->mb_mean = pic->mb_mean_buf->data;
617 pic->mbskip_table = pic->mbskip_table_buf->data;
618 pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1;
619 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
621 if (pic->motion_val_buf[0]) {
622 for (i = 0; i < 2; i++) {
623 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
624 pic->ref_index[i] = pic->ref_index_buf[i]->data;
630 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
631 ff_mpeg_unref_picture(s, pic);
632 ff_free_picture_tables(pic);
633 return AVERROR(ENOMEM);
637 * Deallocate a picture.
639 void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
641 int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
644 /* WM Image / Screen codecs allocate internal buffers with different
645 * dimensions / colorspaces; ignore user-defined callbacks for these. */
646 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
647 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
648 s->codec_id != AV_CODEC_ID_MSS2)
649 ff_thread_release_buffer(s->avctx, &pic->tf);
651 av_frame_unref(pic->f);
653 av_buffer_unref(&pic->hwaccel_priv_buf);
655 if (pic->needs_realloc)
656 ff_free_picture_tables(pic);
658 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
661 static int update_picture_tables(Picture *dst, Picture *src)
665 #define UPDATE_TABLE(table)\
668 (!dst->table || dst->table->buffer != src->table->buffer)) {\
669 av_buffer_unref(&dst->table);\
670 dst->table = av_buffer_ref(src->table);\
672 ff_free_picture_tables(dst);\
673 return AVERROR(ENOMEM);\
678 UPDATE_TABLE(mb_var_buf);
679 UPDATE_TABLE(mc_mb_var_buf);
680 UPDATE_TABLE(mb_mean_buf);
681 UPDATE_TABLE(mbskip_table_buf);
682 UPDATE_TABLE(qscale_table_buf);
683 UPDATE_TABLE(mb_type_buf);
684 for (i = 0; i < 2; i++) {
685 UPDATE_TABLE(motion_val_buf[i]);
686 UPDATE_TABLE(ref_index_buf[i]);
689 dst->mb_var = src->mb_var;
690 dst->mc_mb_var = src->mc_mb_var;
691 dst->mb_mean = src->mb_mean;
692 dst->mbskip_table = src->mbskip_table;
693 dst->qscale_table = src->qscale_table;
694 dst->mb_type = src->mb_type;
695 for (i = 0; i < 2; i++) {
696 dst->motion_val[i] = src->motion_val[i];
697 dst->ref_index[i] = src->ref_index[i];
700 dst->alloc_mb_width = src->alloc_mb_width;
701 dst->alloc_mb_height = src->alloc_mb_height;
706 int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
710 av_assert0(!dst->f->buf[0]);
711 av_assert0(src->f->buf[0]);
715 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
719 ret = update_picture_tables(dst, src);
723 if (src->hwaccel_picture_private) {
724 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
725 if (!dst->hwaccel_priv_buf)
727 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
730 dst->field_picture = src->field_picture;
731 dst->mb_var_sum = src->mb_var_sum;
732 dst->mc_mb_var_sum = src->mc_mb_var_sum;
733 dst->b_frame_score = src->b_frame_score;
734 dst->needs_realloc = src->needs_realloc;
735 dst->reference = src->reference;
736 dst->shared = src->shared;
740 ff_mpeg_unref_picture(s, dst);
744 static void exchange_uv(MpegEncContext *s)
749 s->pblocks[4] = s->pblocks[5];
753 static int init_duplicate_context(MpegEncContext *s)
755 int y_size = s->b8_stride * (2 * s->mb_height + 1);
756 int c_size = s->mb_stride * (s->mb_height + 1);
757 int yc_size = y_size + 2 * c_size;
760 if (s->mb_height & 1)
761 yc_size += 2*s->b8_stride + 2*s->mb_stride;
768 s->obmc_scratchpad = NULL;
771 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
772 ME_MAP_SIZE * sizeof(uint32_t), fail)
773 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
774 ME_MAP_SIZE * sizeof(uint32_t), fail)
775 if (s->avctx->noise_reduction) {
776 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
777 2 * 64 * sizeof(int), fail)
780 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
781 s->block = s->blocks[0];
783 for (i = 0; i < 12; i++) {
784 s->pblocks[i] = &s->block[i];
786 if (s->avctx->codec_tag == AV_RL32("VCR2"))
789 if (s->out_format == FMT_H263) {
791 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
792 yc_size * sizeof(int16_t) * 16, fail);
793 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
794 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
795 s->ac_val[2] = s->ac_val[1] + c_size;
800 return -1; // free() through ff_MPV_common_end()
803 static void free_duplicate_context(MpegEncContext *s)
808 av_freep(&s->edge_emu_buffer);
809 av_freep(&s->me.scratchpad);
813 s->obmc_scratchpad = NULL;
815 av_freep(&s->dct_error_sum);
816 av_freep(&s->me.map);
817 av_freep(&s->me.score_map);
818 av_freep(&s->blocks);
819 av_freep(&s->ac_val_base);
823 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
825 #define COPY(a) bak->a = src->a
826 COPY(edge_emu_buffer);
831 COPY(obmc_scratchpad);
838 COPY(me.map_generation);
850 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
854 // FIXME copy only needed parts
856 backup_duplicate_context(&bak, dst);
857 memcpy(dst, src, sizeof(MpegEncContext));
858 backup_duplicate_context(dst, &bak);
859 for (i = 0; i < 12; i++) {
860 dst->pblocks[i] = &dst->block[i];
862 if (dst->avctx->codec_tag == AV_RL32("VCR2"))
864 if (!dst->edge_emu_buffer &&
865 (ret = frame_size_alloc(dst, dst->linesize)) < 0) {
866 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
867 "scratch buffers.\n");
870 // STOP_TIMER("update_duplicate_context")
871 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
875 int ff_mpeg_update_thread_context(AVCodecContext *dst,
876 const AVCodecContext *src)
879 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
886 // FIXME can parameters change on I-frames?
887 // in that case dst may need a reinit
888 if (!s->context_initialized) {
889 memcpy(s, s1, sizeof(MpegEncContext));
892 s->bitstream_buffer = NULL;
893 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
895 if (s1->context_initialized){
896 // s->picture_range_start += MAX_PICTURE_COUNT;
897 // s->picture_range_end += MAX_PICTURE_COUNT;
898 if((ret = ff_MPV_common_init(s)) < 0){
899 memset(s, 0, sizeof(MpegEncContext));
906 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
907 s->context_reinit = 0;
908 s->height = s1->height;
909 s->width = s1->width;
910 if ((ret = ff_MPV_common_frame_size_change(s)) < 0)
914 s->avctx->coded_height = s1->avctx->coded_height;
915 s->avctx->coded_width = s1->avctx->coded_width;
916 s->avctx->width = s1->avctx->width;
917 s->avctx->height = s1->avctx->height;
919 s->coded_picture_number = s1->coded_picture_number;
920 s->picture_number = s1->picture_number;
922 av_assert0(!s->picture || s->picture != s1->picture);
924 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
925 ff_mpeg_unref_picture(s, &s->picture[i]);
926 if (s1->picture[i].f->buf[0] &&
927 (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0)
931 #define UPDATE_PICTURE(pic)\
933 ff_mpeg_unref_picture(s, &s->pic);\
934 if (s1->pic.f && s1->pic.f->buf[0])\
935 ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\
937 ret = update_picture_tables(&s->pic, &s1->pic);\
942 UPDATE_PICTURE(current_picture);
943 UPDATE_PICTURE(last_picture);
944 UPDATE_PICTURE(next_picture);
946 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
947 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
948 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
950 // Error/bug resilience
951 s->next_p_frame_damaged = s1->next_p_frame_damaged;
952 s->workaround_bugs = s1->workaround_bugs;
953 s->padding_bug_score = s1->padding_bug_score;
956 memcpy(&s->last_time_base, &s1->last_time_base,
957 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
958 (char *) &s1->last_time_base);
961 s->max_b_frames = s1->max_b_frames;
962 s->low_delay = s1->low_delay;
963 s->droppable = s1->droppable;
965 // DivX handling (doesn't work)
966 s->divx_packed = s1->divx_packed;
968 if (s1->bitstream_buffer) {
969 if (s1->bitstream_buffer_size +
970 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
971 av_fast_malloc(&s->bitstream_buffer,
972 &s->allocated_bitstream_buffer_size,
973 s1->allocated_bitstream_buffer_size);
974 s->bitstream_buffer_size = s1->bitstream_buffer_size;
975 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
976 s1->bitstream_buffer_size);
977 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
978 FF_INPUT_BUFFER_PADDING_SIZE);
981 // linesize dependend scratch buffer allocation
982 if (!s->edge_emu_buffer)
984 if (frame_size_alloc(s, s1->linesize) < 0) {
985 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
986 "scratch buffers.\n");
987 return AVERROR(ENOMEM);
990 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
991 "be allocated due to unknown size.\n");
994 // MPEG2/interlacing info
995 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
996 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
998 if (!s1->first_field) {
999 s->last_pict_type = s1->pict_type;
1000 if (s1->current_picture_ptr)
1001 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
1008 * Set the given MpegEncContext to common defaults
1009 * (same for encoding and decoding).
1010 * The changed fields will not depend upon the
1011 * prior state of the MpegEncContext.
1013 void ff_MPV_common_defaults(MpegEncContext *s)
1015 s->y_dc_scale_table =
1016 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
1017 s->chroma_qscale_table = ff_default_chroma_qscale_table;
1018 s->progressive_frame = 1;
1019 s->progressive_sequence = 1;
1020 s->picture_structure = PICT_FRAME;
1022 s->coded_picture_number = 0;
1023 s->picture_number = 0;
1028 s->slice_context_count = 1;
1032 * Set the given MpegEncContext to defaults for decoding.
1033 * the changed fields will not depend upon
1034 * the prior state of the MpegEncContext.
1036 void ff_MPV_decode_defaults(MpegEncContext *s)
1038 ff_MPV_common_defaults(s);
1041 static int init_er(MpegEncContext *s)
1043 ERContext *er = &s->er;
1044 int mb_array_size = s->mb_height * s->mb_stride;
1047 er->avctx = s->avctx;
1050 er->mb_index2xy = s->mb_index2xy;
1051 er->mb_num = s->mb_num;
1052 er->mb_width = s->mb_width;
1053 er->mb_height = s->mb_height;
1054 er->mb_stride = s->mb_stride;
1055 er->b8_stride = s->b8_stride;
1057 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
1058 er->error_status_table = av_mallocz(mb_array_size);
1059 if (!er->er_temp_buffer || !er->error_status_table)
1062 er->mbskip_table = s->mbskip_table;
1063 er->mbintra_table = s->mbintra_table;
1065 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
1066 er->dc_val[i] = s->dc_val[i];
1068 er->decode_mb = mpeg_er_decode_mb;
1073 av_freep(&er->er_temp_buffer);
1074 av_freep(&er->error_status_table);
1075 return AVERROR(ENOMEM);
1079 * Initialize and allocates MpegEncContext fields dependent on the resolution.
1081 static int init_context_frame(MpegEncContext *s)
1083 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
1085 s->mb_width = (s->width + 15) / 16;
1086 s->mb_stride = s->mb_width + 1;
1087 s->b8_stride = s->mb_width * 2 + 1;
1088 mb_array_size = s->mb_height * s->mb_stride;
1089 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
1091 /* set default edge pos, will be overridden
1092 * in decode_header if needed */
1093 s->h_edge_pos = s->mb_width * 16;
1094 s->v_edge_pos = s->mb_height * 16;
1096 s->mb_num = s->mb_width * s->mb_height;
1101 s->block_wrap[3] = s->b8_stride;
1103 s->block_wrap[5] = s->mb_stride;
1105 y_size = s->b8_stride * (2 * s->mb_height + 1);
1106 c_size = s->mb_stride * (s->mb_height + 1);
1107 yc_size = y_size + 2 * c_size;
1109 if (s->mb_height & 1)
1110 yc_size += 2*s->b8_stride + 2*s->mb_stride;
1112 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
1113 for (y = 0; y < s->mb_height; y++)
1114 for (x = 0; x < s->mb_width; x++)
1115 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
1117 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
1120 /* Allocate MV tables */
1121 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1122 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1123 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1124 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1125 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1126 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1127 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
1128 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
1129 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
1130 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
1131 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
1132 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
1134 /* Allocate MB type table */
1135 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
1137 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
1139 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
1140 mb_array_size * sizeof(float), fail);
1141 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
1142 mb_array_size * sizeof(float), fail);
1146 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
1147 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
1148 /* interlaced direct mode decoding tables */
1149 for (i = 0; i < 2; i++) {
1151 for (j = 0; j < 2; j++) {
1152 for (k = 0; k < 2; k++) {
1153 FF_ALLOCZ_OR_GOTO(s->avctx,
1154 s->b_field_mv_table_base[i][j][k],
1155 mv_table_size * 2 * sizeof(int16_t),
1157 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
1160 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
1161 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
1162 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
1164 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
1167 if (s->out_format == FMT_H263) {
1169 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
1170 s->coded_block = s->coded_block_base + s->b8_stride + 1;
1172 /* cbp, ac_pred, pred_dir */
1173 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
1174 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
1177 if (s->h263_pred || s->h263_plus || !s->encoding) {
1179 // MN: we need these for error resilience of intra-frames
1180 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
1181 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
1182 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
1183 s->dc_val[2] = s->dc_val[1] + c_size;
1184 for (i = 0; i < yc_size; i++)
1185 s->dc_val_base[i] = 1024;
1188 /* which mb is a intra block */
1189 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
1190 memset(s->mbintra_table, 1, mb_array_size);
1192 /* init macroblock skip table */
1193 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
1194 // Note the + 1 is for a quicker mpeg4 slice_end detection
1198 return AVERROR(ENOMEM);
1202 * init common structure for both encoder and decoder.
1203 * this assumes that some variables like width/height are already set
1205 av_cold int ff_MPV_common_init(MpegEncContext *s)
1208 int nb_slices = (HAVE_THREADS &&
1209 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
1210 s->avctx->thread_count : 1;
1212 if (s->encoding && s->avctx->slices)
1213 nb_slices = s->avctx->slices;
1215 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1216 s->mb_height = (s->height + 31) / 32 * 2;
1218 s->mb_height = (s->height + 15) / 16;
1220 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1221 av_log(s->avctx, AV_LOG_ERROR,
1222 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1226 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1229 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1231 max_slices = MAX_THREADS;
1232 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1233 " reducing to %d\n", nb_slices, max_slices);
1234 nb_slices = max_slices;
1237 if ((s->width || s->height) &&
1238 av_image_check_size(s->width, s->height, 0, s->avctx))
1241 ff_dct_common_init(s);
1243 s->flags = s->avctx->flags;
1244 s->flags2 = s->avctx->flags2;
1246 /* set chroma shifts */
1247 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
1249 &s->chroma_y_shift);
1251 /* convert fourcc to upper case */
1252 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
1254 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
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 s->thread_context[0] = s;
1288 // if (s->width && s->height) {
1289 if (nb_slices > 1) {
1290 for (i = 1; i < nb_slices; i++) {
1291 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1292 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1295 for (i = 0; i < nb_slices; i++) {
1296 if (init_duplicate_context(s->thread_context[i]) < 0)
1298 s->thread_context[i]->start_mb_y =
1299 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1300 s->thread_context[i]->end_mb_y =
1301 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1304 if (init_duplicate_context(s) < 0)
1307 s->end_mb_y = s->mb_height;
1309 s->slice_context_count = nb_slices;
1314 ff_MPV_common_end(s);
1319 * Frees and resets MpegEncContext fields depending on the resolution.
1320 * Is used during resolution changes to avoid a full reinitialization of the
1323 static int free_context_frame(MpegEncContext *s)
1327 av_freep(&s->mb_type);
1328 av_freep(&s->p_mv_table_base);
1329 av_freep(&s->b_forw_mv_table_base);
1330 av_freep(&s->b_back_mv_table_base);
1331 av_freep(&s->b_bidir_forw_mv_table_base);
1332 av_freep(&s->b_bidir_back_mv_table_base);
1333 av_freep(&s->b_direct_mv_table_base);
1334 s->p_mv_table = NULL;
1335 s->b_forw_mv_table = NULL;
1336 s->b_back_mv_table = NULL;
1337 s->b_bidir_forw_mv_table = NULL;
1338 s->b_bidir_back_mv_table = NULL;
1339 s->b_direct_mv_table = NULL;
1340 for (i = 0; i < 2; i++) {
1341 for (j = 0; j < 2; j++) {
1342 for (k = 0; k < 2; k++) {
1343 av_freep(&s->b_field_mv_table_base[i][j][k]);
1344 s->b_field_mv_table[i][j][k] = NULL;
1346 av_freep(&s->b_field_select_table[i][j]);
1347 av_freep(&s->p_field_mv_table_base[i][j]);
1348 s->p_field_mv_table[i][j] = NULL;
1350 av_freep(&s->p_field_select_table[i]);
1353 av_freep(&s->dc_val_base);
1354 av_freep(&s->coded_block_base);
1355 av_freep(&s->mbintra_table);
1356 av_freep(&s->cbp_table);
1357 av_freep(&s->pred_dir_table);
1359 av_freep(&s->mbskip_table);
1361 av_freep(&s->er.error_status_table);
1362 av_freep(&s->er.er_temp_buffer);
1363 av_freep(&s->mb_index2xy);
1364 av_freep(&s->lambda_table);
1366 av_freep(&s->cplx_tab);
1367 av_freep(&s->bits_tab);
1369 s->linesize = s->uvlinesize = 0;
1374 int ff_MPV_common_frame_size_change(MpegEncContext *s)
1378 if (s->slice_context_count > 1) {
1379 for (i = 0; i < s->slice_context_count; i++) {
1380 free_duplicate_context(s->thread_context[i]);
1382 for (i = 1; i < s->slice_context_count; i++) {
1383 av_freep(&s->thread_context[i]);
1386 free_duplicate_context(s);
1388 if ((err = free_context_frame(s)) < 0)
1392 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1393 s->picture[i].needs_realloc = 1;
1396 s->last_picture_ptr =
1397 s->next_picture_ptr =
1398 s->current_picture_ptr = NULL;
1401 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1402 s->mb_height = (s->height + 31) / 32 * 2;
1404 s->mb_height = (s->height + 15) / 16;
1406 if ((s->width || s->height) &&
1407 av_image_check_size(s->width, s->height, 0, s->avctx))
1408 return AVERROR_INVALIDDATA;
1410 if ((err = init_context_frame(s)))
1413 s->thread_context[0] = s;
1415 if (s->width && s->height) {
1416 int nb_slices = s->slice_context_count;
1417 if (nb_slices > 1) {
1418 for (i = 1; i < nb_slices; i++) {
1419 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1420 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1423 for (i = 0; i < nb_slices; i++) {
1424 if (init_duplicate_context(s->thread_context[i]) < 0)
1426 s->thread_context[i]->start_mb_y =
1427 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1428 s->thread_context[i]->end_mb_y =
1429 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1432 err = init_duplicate_context(s);
1436 s->end_mb_y = s->mb_height;
1438 s->slice_context_count = nb_slices;
1443 ff_MPV_common_end(s);
1447 /* init common structure for both encoder and decoder */
1448 void ff_MPV_common_end(MpegEncContext *s)
1452 if (s->slice_context_count > 1) {
1453 for (i = 0; i < s->slice_context_count; i++) {
1454 free_duplicate_context(s->thread_context[i]);
1456 for (i = 1; i < s->slice_context_count; i++) {
1457 av_freep(&s->thread_context[i]);
1459 s->slice_context_count = 1;
1460 } else free_duplicate_context(s);
1462 av_freep(&s->parse_context.buffer);
1463 s->parse_context.buffer_size = 0;
1465 av_freep(&s->bitstream_buffer);
1466 s->allocated_bitstream_buffer_size = 0;
1469 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1470 ff_free_picture_tables(&s->picture[i]);
1471 ff_mpeg_unref_picture(s, &s->picture[i]);
1472 av_frame_free(&s->picture[i].f);
1475 av_freep(&s->picture);
1476 ff_free_picture_tables(&s->last_picture);
1477 ff_mpeg_unref_picture(s, &s->last_picture);
1478 av_frame_free(&s->last_picture.f);
1479 ff_free_picture_tables(&s->current_picture);
1480 ff_mpeg_unref_picture(s, &s->current_picture);
1481 av_frame_free(&s->current_picture.f);
1482 ff_free_picture_tables(&s->next_picture);
1483 ff_mpeg_unref_picture(s, &s->next_picture);
1484 av_frame_free(&s->next_picture.f);
1485 ff_free_picture_tables(&s->new_picture);
1486 ff_mpeg_unref_picture(s, &s->new_picture);
1487 av_frame_free(&s->new_picture.f);
1489 free_context_frame(s);
1491 s->context_initialized = 0;
1492 s->last_picture_ptr =
1493 s->next_picture_ptr =
1494 s->current_picture_ptr = NULL;
1495 s->linesize = s->uvlinesize = 0;
1498 av_cold void ff_init_rl(RLTable *rl,
1499 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1501 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1502 uint8_t index_run[MAX_RUN + 1];
1503 int last, run, level, start, end, i;
1505 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1506 if (static_store && rl->max_level[0])
1509 /* compute max_level[], max_run[] and index_run[] */
1510 for (last = 0; last < 2; last++) {
1519 memset(max_level, 0, MAX_RUN + 1);
1520 memset(max_run, 0, MAX_LEVEL + 1);
1521 memset(index_run, rl->n, MAX_RUN + 1);
1522 for (i = start; i < end; i++) {
1523 run = rl->table_run[i];
1524 level = rl->table_level[i];
1525 if (index_run[run] == rl->n)
1527 if (level > max_level[run])
1528 max_level[run] = level;
1529 if (run > max_run[level])
1530 max_run[level] = run;
1533 rl->max_level[last] = static_store[last];
1535 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1536 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1538 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1540 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1541 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1543 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1545 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1546 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1550 av_cold void ff_init_vlc_rl(RLTable *rl)
1554 for (q = 0; q < 32; q++) {
1556 int qadd = (q - 1) | 1;
1562 for (i = 0; i < rl->vlc.table_size; i++) {
1563 int code = rl->vlc.table[i][0];
1564 int len = rl->vlc.table[i][1];
1567 if (len == 0) { // illegal code
1570 } else if (len < 0) { // more bits needed
1574 if (code == rl->n) { // esc
1578 run = rl->table_run[code] + 1;
1579 level = rl->table_level[code] * qmul + qadd;
1580 if (code >= rl->last) run += 192;
1583 rl->rl_vlc[q][i].len = len;
1584 rl->rl_vlc[q][i].level = level;
1585 rl->rl_vlc[q][i].run = run;
1590 static void release_unused_pictures(MpegEncContext *s)
1594 /* release non reference frames */
1595 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1596 if (!s->picture[i].reference)
1597 ff_mpeg_unref_picture(s, &s->picture[i]);
1601 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1603 if (pic == s->last_picture_ptr)
1605 if (pic->f->buf[0] == NULL)
1607 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1612 static int find_unused_picture(MpegEncContext *s, int shared)
1617 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1618 if (s->picture[i].f->buf[0] == NULL && &s->picture[i] != s->last_picture_ptr)
1622 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1623 if (pic_is_unused(s, &s->picture[i]))
1628 av_log(s->avctx, AV_LOG_FATAL,
1629 "Internal error, picture buffer overflow\n");
1630 /* We could return -1, but the codec would crash trying to draw into a
1631 * non-existing frame anyway. This is safer than waiting for a random crash.
1632 * Also the return of this is never useful, an encoder must only allocate
1633 * as much as allowed in the specification. This has no relationship to how
1634 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1635 * enough for such valid streams).
1636 * Plus, a decoder has to check stream validity and remove frames if too
1637 * many reference frames are around. Waiting for "OOM" is not correct at
1638 * all. Similarly, missing reference frames have to be replaced by
1639 * interpolated/MC frames, anything else is a bug in the codec ...
1645 int ff_find_unused_picture(MpegEncContext *s, int shared)
1647 int ret = find_unused_picture(s, shared);
1649 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1650 if (s->picture[ret].needs_realloc) {
1651 s->picture[ret].needs_realloc = 0;
1652 ff_free_picture_tables(&s->picture[ret]);
1653 ff_mpeg_unref_picture(s, &s->picture[ret]);
1660 * generic function called after decoding
1661 * the header and before a frame is decoded.
1663 int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1669 if (!ff_thread_can_start_frame(avctx)) {
1670 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1674 /* mark & release old frames */
1675 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1676 s->last_picture_ptr != s->next_picture_ptr &&
1677 s->last_picture_ptr->f->buf[0]) {
1678 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1681 /* release forgotten pictures */
1682 /* if (mpeg124/h263) */
1683 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1684 if (&s->picture[i] != s->last_picture_ptr &&
1685 &s->picture[i] != s->next_picture_ptr &&
1686 s->picture[i].reference && !s->picture[i].needs_realloc) {
1687 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1688 av_log(avctx, AV_LOG_ERROR,
1689 "releasing zombie picture\n");
1690 ff_mpeg_unref_picture(s, &s->picture[i]);
1694 ff_mpeg_unref_picture(s, &s->current_picture);
1696 release_unused_pictures(s);
1698 if (s->current_picture_ptr &&
1699 s->current_picture_ptr->f->buf[0] == NULL) {
1700 // we already have a unused image
1701 // (maybe it was set before reading the header)
1702 pic = s->current_picture_ptr;
1704 i = ff_find_unused_picture(s, 0);
1706 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1709 pic = &s->picture[i];
1713 if (!s->droppable) {
1714 if (s->pict_type != AV_PICTURE_TYPE_B)
1718 pic->f->coded_picture_number = s->coded_picture_number++;
1720 if (ff_alloc_picture(s, pic, 0) < 0)
1723 s->current_picture_ptr = pic;
1724 // FIXME use only the vars from current_pic
1725 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1726 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1727 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1728 if (s->picture_structure != PICT_FRAME)
1729 s->current_picture_ptr->f->top_field_first =
1730 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1732 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1733 !s->progressive_sequence;
1734 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1736 s->current_picture_ptr->f->pict_type = s->pict_type;
1737 // if (s->flags && CODEC_FLAG_QSCALE)
1738 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1739 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1741 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1742 s->current_picture_ptr)) < 0)
1745 if (s->pict_type != AV_PICTURE_TYPE_B) {
1746 s->last_picture_ptr = s->next_picture_ptr;
1748 s->next_picture_ptr = s->current_picture_ptr;
1750 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1751 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1752 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1753 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1754 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1755 s->pict_type, s->droppable);
1757 if ((s->last_picture_ptr == NULL ||
1758 s->last_picture_ptr->f->buf[0] == NULL) &&
1759 (s->pict_type != AV_PICTURE_TYPE_I ||
1760 s->picture_structure != PICT_FRAME)) {
1761 int h_chroma_shift, v_chroma_shift;
1762 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1763 &h_chroma_shift, &v_chroma_shift);
1764 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1765 av_log(avctx, AV_LOG_DEBUG,
1766 "allocating dummy last picture for B frame\n");
1767 else if (s->pict_type != AV_PICTURE_TYPE_I)
1768 av_log(avctx, AV_LOG_ERROR,
1769 "warning: first frame is no keyframe\n");
1770 else if (s->picture_structure != PICT_FRAME)
1771 av_log(avctx, AV_LOG_DEBUG,
1772 "allocate dummy last picture for field based first keyframe\n");
1774 /* Allocate a dummy frame */
1775 i = ff_find_unused_picture(s, 0);
1777 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1780 s->last_picture_ptr = &s->picture[i];
1782 s->last_picture_ptr->reference = 3;
1783 s->last_picture_ptr->f->key_frame = 0;
1784 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1786 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1787 s->last_picture_ptr = NULL;
1791 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1792 for(i=0; i<avctx->height; i++)
1793 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1794 0x80, avctx->width);
1795 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1796 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1797 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1798 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1799 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1802 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1803 for(i=0; i<avctx->height; i++)
1804 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1808 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1809 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1811 if ((s->next_picture_ptr == NULL ||
1812 s->next_picture_ptr->f->buf[0] == NULL) &&
1813 s->pict_type == AV_PICTURE_TYPE_B) {
1814 /* Allocate a dummy frame */
1815 i = ff_find_unused_picture(s, 0);
1817 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1820 s->next_picture_ptr = &s->picture[i];
1822 s->next_picture_ptr->reference = 3;
1823 s->next_picture_ptr->f->key_frame = 0;
1824 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1826 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1827 s->next_picture_ptr = NULL;
1830 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1831 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1834 #if 0 // BUFREF-FIXME
1835 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1836 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1838 if (s->last_picture_ptr) {
1839 ff_mpeg_unref_picture(s, &s->last_picture);
1840 if (s->last_picture_ptr->f->buf[0] &&
1841 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1842 s->last_picture_ptr)) < 0)
1845 if (s->next_picture_ptr) {
1846 ff_mpeg_unref_picture(s, &s->next_picture);
1847 if (s->next_picture_ptr->f->buf[0] &&
1848 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1849 s->next_picture_ptr)) < 0)
1853 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1854 s->last_picture_ptr->f->buf[0]));
1856 if (s->picture_structure!= PICT_FRAME) {
1858 for (i = 0; i < 4; i++) {
1859 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1860 s->current_picture.f->data[i] +=
1861 s->current_picture.f->linesize[i];
1863 s->current_picture.f->linesize[i] *= 2;
1864 s->last_picture.f->linesize[i] *= 2;
1865 s->next_picture.f->linesize[i] *= 2;
1869 s->err_recognition = avctx->err_recognition;
1871 /* set dequantizer, we can't do it during init as
1872 * it might change for mpeg4 and we can't do it in the header
1873 * decode as init is not called for mpeg4 there yet */
1874 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1875 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1876 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1877 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1878 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1879 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1881 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1882 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1888 /* called after a frame has been decoded. */
1889 void ff_MPV_frame_end(MpegEncContext *s)
1893 if (s->current_picture.reference)
1894 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1898 * Draw a line from (ex, ey) -> (sx, sy).
1899 * @param w width of the image
1900 * @param h height of the image
1901 * @param stride stride/linesize of the image
1902 * @param color color of the arrow
1904 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1905 int w, int h, int stride, int color)
1909 sx = av_clip(sx, 0, w - 1);
1910 sy = av_clip(sy, 0, h - 1);
1911 ex = av_clip(ex, 0, w - 1);
1912 ey = av_clip(ey, 0, h - 1);
1914 buf[sy * stride + sx] += color;
1916 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1918 FFSWAP(int, sx, ex);
1919 FFSWAP(int, sy, ey);
1921 buf += sx + sy * stride;
1923 f = ((ey - sy) << 16) / ex;
1924 for (x = 0; x <= ex; x++) {
1926 fr = (x * f) & 0xFFFF;
1927 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1928 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1932 FFSWAP(int, sx, ex);
1933 FFSWAP(int, sy, ey);
1935 buf += sx + sy * stride;
1938 f = ((ex - sx) << 16) / ey;
1941 for(y= 0; y <= ey; y++){
1943 fr = (y*f) & 0xFFFF;
1944 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1945 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1951 * Draw an arrow from (ex, ey) -> (sx, sy).
1952 * @param w width of the image
1953 * @param h height of the image
1954 * @param stride stride/linesize of the image
1955 * @param color color of the arrow
1957 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1958 int ey, int w, int h, int stride, int color)
1962 sx = av_clip(sx, -100, w + 100);
1963 sy = av_clip(sy, -100, h + 100);
1964 ex = av_clip(ex, -100, w + 100);
1965 ey = av_clip(ey, -100, h + 100);
1970 if (dx * dx + dy * dy > 3 * 3) {
1973 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1975 // FIXME subpixel accuracy
1976 rx = ROUNDED_DIV(rx * 3 << 4, length);
1977 ry = ROUNDED_DIV(ry * 3 << 4, length);
1979 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1980 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1982 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1986 * Print debugging info for the given picture.
1988 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1989 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1991 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1993 if (avctx->hwaccel || !mbtype_table
1994 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1998 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
2001 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
2002 av_get_picture_type_char(pict->pict_type));
2003 for (y = 0; y < mb_height; y++) {
2004 for (x = 0; x < mb_width; x++) {
2005 if (avctx->debug & FF_DEBUG_SKIP) {
2006 int count = mbskip_table[x + y * mb_stride];
2009 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
2011 if (avctx->debug & FF_DEBUG_QP) {
2012 av_log(avctx, AV_LOG_DEBUG, "%2d",
2013 qscale_table[x + y * mb_stride]);
2015 if (avctx->debug & FF_DEBUG_MB_TYPE) {
2016 int mb_type = mbtype_table[x + y * mb_stride];
2017 // Type & MV direction
2018 if (IS_PCM(mb_type))
2019 av_log(avctx, AV_LOG_DEBUG, "P");
2020 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
2021 av_log(avctx, AV_LOG_DEBUG, "A");
2022 else if (IS_INTRA4x4(mb_type))
2023 av_log(avctx, AV_LOG_DEBUG, "i");
2024 else if (IS_INTRA16x16(mb_type))
2025 av_log(avctx, AV_LOG_DEBUG, "I");
2026 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
2027 av_log(avctx, AV_LOG_DEBUG, "d");
2028 else if (IS_DIRECT(mb_type))
2029 av_log(avctx, AV_LOG_DEBUG, "D");
2030 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
2031 av_log(avctx, AV_LOG_DEBUG, "g");
2032 else if (IS_GMC(mb_type))
2033 av_log(avctx, AV_LOG_DEBUG, "G");
2034 else if (IS_SKIP(mb_type))
2035 av_log(avctx, AV_LOG_DEBUG, "S");
2036 else if (!USES_LIST(mb_type, 1))
2037 av_log(avctx, AV_LOG_DEBUG, ">");
2038 else if (!USES_LIST(mb_type, 0))
2039 av_log(avctx, AV_LOG_DEBUG, "<");
2041 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2042 av_log(avctx, AV_LOG_DEBUG, "X");
2046 if (IS_8X8(mb_type))
2047 av_log(avctx, AV_LOG_DEBUG, "+");
2048 else if (IS_16X8(mb_type))
2049 av_log(avctx, AV_LOG_DEBUG, "-");
2050 else if (IS_8X16(mb_type))
2051 av_log(avctx, AV_LOG_DEBUG, "|");
2052 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
2053 av_log(avctx, AV_LOG_DEBUG, " ");
2055 av_log(avctx, AV_LOG_DEBUG, "?");
2058 if (IS_INTERLACED(mb_type))
2059 av_log(avctx, AV_LOG_DEBUG, "=");
2061 av_log(avctx, AV_LOG_DEBUG, " ");
2064 av_log(avctx, AV_LOG_DEBUG, "\n");
2068 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
2069 (avctx->debug_mv)) {
2070 const int shift = 1 + quarter_sample;
2074 int h_chroma_shift, v_chroma_shift, block_height;
2075 const int width = avctx->width;
2076 const int height = avctx->height;
2077 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2078 const int mv_stride = (mb_width << mv_sample_log2) +
2079 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2081 *low_delay = 0; // needed to see the vectors without trashing the buffers
2083 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
2085 av_frame_make_writable(pict);
2087 pict->opaque = NULL;
2088 ptr = pict->data[0];
2089 block_height = 16 >> v_chroma_shift;
2091 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2093 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2094 const int mb_index = mb_x + mb_y * mb_stride;
2095 if ((avctx->debug_mv) && motion_val[0]) {
2097 for (type = 0; type < 3; type++) {
2101 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
2102 (pict->pict_type!= AV_PICTURE_TYPE_P))
2107 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
2108 (pict->pict_type!= AV_PICTURE_TYPE_B))
2113 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2114 (pict->pict_type!= AV_PICTURE_TYPE_B))
2119 if (!USES_LIST(mbtype_table[mb_index], direction))
2122 if (IS_8X8(mbtype_table[mb_index])) {
2124 for (i = 0; i < 4; i++) {
2125 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2126 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2127 int xy = (mb_x * 2 + (i & 1) +
2128 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2129 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2130 int my = (motion_val[direction][xy][1] >> shift) + sy;
2131 draw_arrow(ptr, sx, sy, mx, my, width,
2132 height, pict->linesize[0], 100);
2134 } else if (IS_16X8(mbtype_table[mb_index])) {
2136 for (i = 0; i < 2; i++) {
2137 int sx = mb_x * 16 + 8;
2138 int sy = mb_y * 16 + 4 + 8 * i;
2139 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2140 int mx = (motion_val[direction][xy][0] >> shift);
2141 int my = (motion_val[direction][xy][1] >> shift);
2143 if (IS_INTERLACED(mbtype_table[mb_index]))
2146 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2147 height, pict->linesize[0], 100);
2149 } else if (IS_8X16(mbtype_table[mb_index])) {
2151 for (i = 0; i < 2; i++) {
2152 int sx = mb_x * 16 + 4 + 8 * i;
2153 int sy = mb_y * 16 + 8;
2154 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2155 int mx = motion_val[direction][xy][0] >> shift;
2156 int my = motion_val[direction][xy][1] >> shift;
2158 if (IS_INTERLACED(mbtype_table[mb_index]))
2161 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2162 height, pict->linesize[0], 100);
2165 int sx= mb_x * 16 + 8;
2166 int sy= mb_y * 16 + 8;
2167 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2168 int mx= (motion_val[direction][xy][0]>>shift) + sx;
2169 int my= (motion_val[direction][xy][1]>>shift) + sy;
2170 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100);
2174 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2175 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
2176 0x0101010101010101ULL;
2178 for (y = 0; y < block_height; y++) {
2179 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2180 (block_height * mb_y + y) *
2181 pict->linesize[1]) = c;
2182 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2183 (block_height * mb_y + y) *
2184 pict->linesize[2]) = c;
2187 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2189 int mb_type = mbtype_table[mb_index];
2192 #define COLOR(theta, r) \
2193 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2194 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2198 if (IS_PCM(mb_type)) {
2200 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2201 IS_INTRA16x16(mb_type)) {
2203 } else if (IS_INTRA4x4(mb_type)) {
2205 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2207 } else if (IS_DIRECT(mb_type)) {
2209 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2211 } else if (IS_GMC(mb_type)) {
2213 } else if (IS_SKIP(mb_type)) {
2215 } else if (!USES_LIST(mb_type, 1)) {
2217 } else if (!USES_LIST(mb_type, 0)) {
2220 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2224 u *= 0x0101010101010101ULL;
2225 v *= 0x0101010101010101ULL;
2226 for (y = 0; y < block_height; y++) {
2227 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2228 (block_height * mb_y + y) * pict->linesize[1]) = u;
2229 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2230 (block_height * mb_y + y) * pict->linesize[2]) = v;
2234 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2235 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2236 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2237 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2238 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2240 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2241 for (y = 0; y < 16; y++)
2242 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2243 pict->linesize[0]] ^= 0x80;
2245 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2246 int dm = 1 << (mv_sample_log2 - 2);
2247 for (i = 0; i < 4; i++) {
2248 int sx = mb_x * 16 + 8 * (i & 1);
2249 int sy = mb_y * 16 + 8 * (i >> 1);
2250 int xy = (mb_x * 2 + (i & 1) +
2251 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2253 int32_t *mv = (int32_t *) &motion_val[0][xy];
2254 if (mv[0] != mv[dm] ||
2255 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2256 for (y = 0; y < 8; y++)
2257 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2258 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2259 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2260 pict->linesize[0]) ^= 0x8080808080808080ULL;
2264 if (IS_INTERLACED(mb_type) &&
2265 avctx->codec->id == AV_CODEC_ID_H264) {
2269 mbskip_table[mb_index] = 0;
2275 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2277 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
2278 p->qscale_table, p->motion_val, &s->low_delay,
2279 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2282 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2284 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2285 int offset = 2*s->mb_stride + 1;
2287 return AVERROR(ENOMEM);
2288 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2289 ref->size -= offset;
2290 ref->data += offset;
2291 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2294 static inline int hpel_motion_lowres(MpegEncContext *s,
2295 uint8_t *dest, uint8_t *src,
2296 int field_based, int field_select,
2297 int src_x, int src_y,
2298 int width, int height, ptrdiff_t stride,
2299 int h_edge_pos, int v_edge_pos,
2300 int w, int h, h264_chroma_mc_func *pix_op,
2301 int motion_x, int motion_y)
2303 const int lowres = s->avctx->lowres;
2304 const int op_index = FFMIN(lowres, 3);
2305 const int s_mask = (2 << lowres) - 1;
2309 if (s->quarter_sample) {
2314 sx = motion_x & s_mask;
2315 sy = motion_y & s_mask;
2316 src_x += motion_x >> lowres + 1;
2317 src_y += motion_y >> lowres + 1;
2319 src += src_y * stride + src_x;
2321 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2322 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2323 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
2324 s->linesize, s->linesize,
2325 w + 1, (h + 1) << field_based,
2326 src_x, src_y << field_based,
2327 h_edge_pos, v_edge_pos);
2328 src = s->edge_emu_buffer;
2332 sx = (sx << 2) >> lowres;
2333 sy = (sy << 2) >> lowres;
2336 pix_op[op_index](dest, src, stride, h, sx, sy);
2340 /* apply one mpeg motion vector to the three components */
2341 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2348 uint8_t **ref_picture,
2349 h264_chroma_mc_func *pix_op,
2350 int motion_x, int motion_y,
2353 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2354 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2355 ptrdiff_t uvlinesize, linesize;
2356 const int lowres = s->avctx->lowres;
2357 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2358 const int block_s = 8>>lowres;
2359 const int s_mask = (2 << lowres) - 1;
2360 const int h_edge_pos = s->h_edge_pos >> lowres;
2361 const int v_edge_pos = s->v_edge_pos >> lowres;
2362 linesize = s->current_picture.f->linesize[0] << field_based;
2363 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2365 // FIXME obviously not perfect but qpel will not work in lowres anyway
2366 if (s->quarter_sample) {
2372 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2375 sx = motion_x & s_mask;
2376 sy = motion_y & s_mask;
2377 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2378 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2380 if (s->out_format == FMT_H263) {
2381 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2382 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2383 uvsrc_x = src_x >> 1;
2384 uvsrc_y = src_y >> 1;
2385 } else if (s->out_format == FMT_H261) {
2386 // even chroma mv's are full pel in H261
2389 uvsx = (2 * mx) & s_mask;
2390 uvsy = (2 * my) & s_mask;
2391 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2392 uvsrc_y = mb_y * block_s + (my >> lowres);
2394 if(s->chroma_y_shift){
2399 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2400 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2402 if(s->chroma_x_shift){
2406 uvsy = motion_y & s_mask;
2408 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2411 uvsx = motion_x & s_mask;
2412 uvsy = motion_y & s_mask;
2419 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2420 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2421 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2423 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2424 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2425 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2426 linesize >> field_based, linesize >> field_based,
2427 17, 17 + field_based,
2428 src_x, src_y << field_based, h_edge_pos,
2430 ptr_y = s->edge_emu_buffer;
2431 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2432 uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
2433 s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
2434 uvlinesize >> field_based, uvlinesize >> field_based,
2436 uvsrc_x, uvsrc_y << field_based,
2437 h_edge_pos >> 1, v_edge_pos >> 1);
2438 s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
2439 uvlinesize >> field_based,uvlinesize >> field_based,
2441 uvsrc_x, uvsrc_y << field_based,
2442 h_edge_pos >> 1, v_edge_pos >> 1);
2444 ptr_cr = uvbuf + 16;
2448 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2450 dest_y += s->linesize;
2451 dest_cb += s->uvlinesize;
2452 dest_cr += s->uvlinesize;
2456 ptr_y += s->linesize;
2457 ptr_cb += s->uvlinesize;
2458 ptr_cr += s->uvlinesize;
2461 sx = (sx << 2) >> lowres;
2462 sy = (sy << 2) >> lowres;
2463 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2465 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2466 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2467 uvsx = (uvsx << 2) >> lowres;
2468 uvsy = (uvsy << 2) >> lowres;
2470 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2471 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2474 // FIXME h261 lowres loop filter
2477 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2478 uint8_t *dest_cb, uint8_t *dest_cr,
2479 uint8_t **ref_picture,
2480 h264_chroma_mc_func * pix_op,
2483 const int lowres = s->avctx->lowres;
2484 const int op_index = FFMIN(lowres, 3);
2485 const int block_s = 8 >> lowres;
2486 const int s_mask = (2 << lowres) - 1;
2487 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2488 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2489 int emu = 0, src_x, src_y, sx, sy;
2493 if (s->quarter_sample) {
2498 /* In case of 8X8, we construct a single chroma motion vector
2499 with a special rounding */
2500 mx = ff_h263_round_chroma(mx);
2501 my = ff_h263_round_chroma(my);
2505 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2506 src_y = s->mb_y * block_s + (my >> lowres + 1);
2508 offset = src_y * s->uvlinesize + src_x;
2509 ptr = ref_picture[1] + offset;
2510 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2511 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2512 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2513 s->uvlinesize, s->uvlinesize,
2515 src_x, src_y, h_edge_pos, v_edge_pos);
2516 ptr = s->edge_emu_buffer;
2519 sx = (sx << 2) >> lowres;
2520 sy = (sy << 2) >> lowres;
2521 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2523 ptr = ref_picture[2] + offset;
2525 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2526 s->uvlinesize, s->uvlinesize,
2528 src_x, src_y, h_edge_pos, v_edge_pos);
2529 ptr = s->edge_emu_buffer;
2531 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2535 * motion compensation of a single macroblock
2537 * @param dest_y luma destination pointer
2538 * @param dest_cb chroma cb/u destination pointer
2539 * @param dest_cr chroma cr/v destination pointer
2540 * @param dir direction (0->forward, 1->backward)
2541 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2542 * @param pix_op halfpel motion compensation function (average or put normally)
2543 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2545 static inline void MPV_motion_lowres(MpegEncContext *s,
2546 uint8_t *dest_y, uint8_t *dest_cb,
2548 int dir, uint8_t **ref_picture,
2549 h264_chroma_mc_func *pix_op)
2553 const int lowres = s->avctx->lowres;
2554 const int block_s = 8 >>lowres;
2559 switch (s->mv_type) {
2561 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2563 ref_picture, pix_op,
2564 s->mv[dir][0][0], s->mv[dir][0][1],
2570 for (i = 0; i < 4; i++) {
2571 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2572 s->linesize) * block_s,
2573 ref_picture[0], 0, 0,
2574 (2 * mb_x + (i & 1)) * block_s,
2575 (2 * mb_y + (i >> 1)) * block_s,
2576 s->width, s->height, s->linesize,
2577 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2578 block_s, block_s, pix_op,
2579 s->mv[dir][i][0], s->mv[dir][i][1]);
2581 mx += s->mv[dir][i][0];
2582 my += s->mv[dir][i][1];
2585 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2586 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2590 if (s->picture_structure == PICT_FRAME) {
2592 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2593 1, 0, s->field_select[dir][0],
2594 ref_picture, pix_op,
2595 s->mv[dir][0][0], s->mv[dir][0][1],
2598 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2599 1, 1, s->field_select[dir][1],
2600 ref_picture, pix_op,
2601 s->mv[dir][1][0], s->mv[dir][1][1],
2604 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2605 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2606 ref_picture = s->current_picture_ptr->f->data;
2609 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2610 0, 0, s->field_select[dir][0],
2611 ref_picture, pix_op,
2613 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2617 for (i = 0; i < 2; i++) {
2618 uint8_t **ref2picture;
2620 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2621 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2622 ref2picture = ref_picture;
2624 ref2picture = s->current_picture_ptr->f->data;
2627 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2628 0, 0, s->field_select[dir][i],
2629 ref2picture, pix_op,
2630 s->mv[dir][i][0], s->mv[dir][i][1] +
2631 2 * block_s * i, block_s, mb_y >> 1);
2633 dest_y += 2 * block_s * s->linesize;
2634 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2635 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2639 if (s->picture_structure == PICT_FRAME) {
2640 for (i = 0; i < 2; i++) {
2642 for (j = 0; j < 2; j++) {
2643 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2645 ref_picture, pix_op,
2646 s->mv[dir][2 * i + j][0],
2647 s->mv[dir][2 * i + j][1],
2650 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2653 for (i = 0; i < 2; i++) {
2654 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2655 0, 0, s->picture_structure != i + 1,
2656 ref_picture, pix_op,
2657 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2658 2 * block_s, mb_y >> 1);
2660 // after put we make avg of the same block
2661 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2663 // opposite parity is always in the same
2664 // frame if this is second field
2665 if (!s->first_field) {
2666 ref_picture = s->current_picture_ptr->f->data;
2677 * find the lowest MB row referenced in the MVs
2679 int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
2681 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2682 int my, off, i, mvs;
2684 if (s->picture_structure != PICT_FRAME || s->mcsel)
2687 switch (s->mv_type) {
2701 for (i = 0; i < mvs; i++) {
2702 my = s->mv[dir][i][1]<<qpel_shift;
2703 my_max = FFMAX(my_max, my);
2704 my_min = FFMIN(my_min, my);
2707 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2709 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2711 return s->mb_height-1;
2714 /* put block[] to dest[] */
2715 static inline void put_dct(MpegEncContext *s,
2716 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2718 s->dct_unquantize_intra(s, block, i, qscale);
2719 s->dsp.idct_put (dest, line_size, block);
2722 /* add block[] to dest[] */
2723 static inline void add_dct(MpegEncContext *s,
2724 int16_t *block, int i, uint8_t *dest, int line_size)
2726 if (s->block_last_index[i] >= 0) {
2727 s->dsp.idct_add (dest, line_size, block);
2731 static inline void add_dequant_dct(MpegEncContext *s,
2732 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2734 if (s->block_last_index[i] >= 0) {
2735 s->dct_unquantize_inter(s, block, i, qscale);
2737 s->dsp.idct_add (dest, line_size, block);
2742 * Clean dc, ac, coded_block for the current non-intra MB.
2744 void ff_clean_intra_table_entries(MpegEncContext *s)
2746 int wrap = s->b8_stride;
2747 int xy = s->block_index[0];
2750 s->dc_val[0][xy + 1 ] =
2751 s->dc_val[0][xy + wrap] =
2752 s->dc_val[0][xy + 1 + wrap] = 1024;
2754 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2755 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2756 if (s->msmpeg4_version>=3) {
2757 s->coded_block[xy ] =
2758 s->coded_block[xy + 1 ] =
2759 s->coded_block[xy + wrap] =
2760 s->coded_block[xy + 1 + wrap] = 0;
2763 wrap = s->mb_stride;
2764 xy = s->mb_x + s->mb_y * wrap;
2766 s->dc_val[2][xy] = 1024;
2768 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2769 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2771 s->mbintra_table[xy]= 0;
2774 /* generic function called after a macroblock has been parsed by the
2775 decoder or after it has been encoded by the encoder.
2777 Important variables used:
2778 s->mb_intra : true if intra macroblock
2779 s->mv_dir : motion vector direction
2780 s->mv_type : motion vector type
2781 s->mv : motion vector
2782 s->interlaced_dct : true if interlaced dct used (mpeg2)
2784 static av_always_inline
2785 void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2786 int lowres_flag, int is_mpeg12)
2788 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2791 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2792 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2796 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2797 /* print DCT coefficients */
2799 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2801 for(j=0; j<64; j++){
2802 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
2804 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2808 s->current_picture.qscale_table[mb_xy] = s->qscale;
2810 /* update DC predictors for P macroblocks */
2812 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2813 if(s->mbintra_table[mb_xy])
2814 ff_clean_intra_table_entries(s);
2818 s->last_dc[2] = 128 << s->intra_dc_precision;
2821 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2822 s->mbintra_table[mb_xy]=1;
2824 if ( (s->flags&CODEC_FLAG_PSNR)
2825 || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor
2826 || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
2827 uint8_t *dest_y, *dest_cb, *dest_cr;
2828 int dct_linesize, dct_offset;
2829 op_pixels_func (*op_pix)[4];
2830 qpel_mc_func (*op_qpix)[16];
2831 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2832 const int uvlinesize = s->current_picture.f->linesize[1];
2833 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2834 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2836 /* avoid copy if macroblock skipped in last frame too */
2837 /* skip only during decoding as we might trash the buffers during encoding a bit */
2839 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2841 if (s->mb_skipped) {
2843 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2845 } else if(!s->current_picture.reference) {
2848 *mbskip_ptr = 0; /* not skipped */
2852 dct_linesize = linesize << s->interlaced_dct;
2853 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2857 dest_cb= s->dest[1];
2858 dest_cr= s->dest[2];
2860 dest_y = s->b_scratchpad;
2861 dest_cb= s->b_scratchpad+16*linesize;
2862 dest_cr= s->b_scratchpad+32*linesize;
2866 /* motion handling */
2867 /* decoding or more than one mb_type (MC was already done otherwise) */
2870 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2871 if (s->mv_dir & MV_DIR_FORWARD) {
2872 ff_thread_await_progress(&s->last_picture_ptr->tf,
2873 ff_MPV_lowest_referenced_row(s, 0),
2876 if (s->mv_dir & MV_DIR_BACKWARD) {
2877 ff_thread_await_progress(&s->next_picture_ptr->tf,
2878 ff_MPV_lowest_referenced_row(s, 1),
2884 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2886 if (s->mv_dir & MV_DIR_FORWARD) {
2887 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2888 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2890 if (s->mv_dir & MV_DIR_BACKWARD) {
2891 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2894 op_qpix = s->me.qpel_put;
2895 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2896 op_pix = s->hdsp.put_pixels_tab;
2898 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2900 if (s->mv_dir & MV_DIR_FORWARD) {
2901 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2902 op_pix = s->hdsp.avg_pixels_tab;
2903 op_qpix= s->me.qpel_avg;
2905 if (s->mv_dir & MV_DIR_BACKWARD) {
2906 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2911 /* skip dequant / idct if we are really late ;) */
2912 if(s->avctx->skip_idct){
2913 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2914 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2915 || s->avctx->skip_idct >= AVDISCARD_ALL)
2919 /* add dct residue */
2920 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2921 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2922 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2923 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2924 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2925 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2927 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2928 if (s->chroma_y_shift){
2929 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2930 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2934 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2935 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2936 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2937 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2940 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2941 add_dct(s, block[0], 0, dest_y , dct_linesize);
2942 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2943 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2944 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2946 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2947 if(s->chroma_y_shift){//Chroma420
2948 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2949 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2952 dct_linesize = uvlinesize << s->interlaced_dct;
2953 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2955 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2956 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2957 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2958 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2959 if(!s->chroma_x_shift){//Chroma444
2960 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2961 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2962 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2963 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2968 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2969 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2972 /* dct only in intra block */
2973 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2974 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2975 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2976 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2977 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2979 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2980 if(s->chroma_y_shift){
2981 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2982 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2986 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2987 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2988 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2989 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2993 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2994 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2995 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2996 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2998 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2999 if(s->chroma_y_shift){
3000 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
3001 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
3004 dct_linesize = uvlinesize << s->interlaced_dct;
3005 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3007 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
3008 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
3009 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
3010 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
3011 if(!s->chroma_x_shift){//Chroma444
3012 s->dsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
3013 s->dsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
3014 s->dsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
3015 s->dsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
3023 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
3024 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
3025 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
3030 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
3032 if(s->out_format == FMT_MPEG1) {
3033 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
3034 else MPV_decode_mb_internal(s, block, 0, 1);
3037 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0);
3038 else MPV_decode_mb_internal(s, block, 0, 0);
3041 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
3043 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
3044 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
3045 s->first_field, s->low_delay);
3048 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3049 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3050 const int uvlinesize = s->current_picture.f->linesize[1];
3051 const int mb_size= 4 - s->avctx->lowres;
3053 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3054 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3055 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3056 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3057 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3058 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;
3059 //block_index is not used by mpeg2, so it is not affected by chroma_format
3061 s->dest[0] = s->current_picture.f->data[0] + ((s->mb_x - 1) << mb_size);
3062 s->dest[1] = s->current_picture.f->data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3063 s->dest[2] = s->current_picture.f->data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3065 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3067 if(s->picture_structure==PICT_FRAME){
3068 s->dest[0] += s->mb_y * linesize << mb_size;
3069 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3070 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3072 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3073 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3074 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3075 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3081 * Permute an 8x8 block.
3082 * @param block the block which will be permuted according to the given permutation vector
3083 * @param permutation the permutation vector
3084 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3085 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3086 * (inverse) permutated to scantable order!
3088 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3094 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3096 for(i=0; i<=last; i++){
3097 const int j= scantable[i];
3102 for(i=0; i<=last; i++){
3103 const int j= scantable[i];
3104 const int perm_j= permutation[j];
3105 block[perm_j]= temp[j];
3109 void ff_mpeg_flush(AVCodecContext *avctx){
3111 MpegEncContext *s = avctx->priv_data;
3113 if(s==NULL || s->picture==NULL)
3116 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3117 ff_mpeg_unref_picture(s, &s->picture[i]);
3118 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3120 ff_mpeg_unref_picture(s, &s->current_picture);
3121 ff_mpeg_unref_picture(s, &s->last_picture);
3122 ff_mpeg_unref_picture(s, &s->next_picture);
3124 s->mb_x= s->mb_y= 0;
3127 s->parse_context.state= -1;
3128 s->parse_context.frame_start_found= 0;
3129 s->parse_context.overread= 0;
3130 s->parse_context.overread_index= 0;
3131 s->parse_context.index= 0;
3132 s->parse_context.last_index= 0;
3133 s->bitstream_buffer_size=0;
3138 * set qscale and update qscale dependent variables.
3140 void ff_set_qscale(MpegEncContext * s, int qscale)
3144 else if (qscale > 31)
3148 s->chroma_qscale= s->chroma_qscale_table[qscale];
3150 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3151 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3154 void ff_MPV_report_decode_progress(MpegEncContext *s)
3156 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3157 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
3160 #if CONFIG_ERROR_RESILIENCE
3161 void ff_mpeg_set_erpic(ERPicture *dst, Picture *src)
3165 memset(dst, 0, sizeof(*dst));
3172 for (i = 0; i < 2; i++) {
3173 dst->motion_val[i] = src->motion_val[i];
3174 dst->ref_index[i] = src->ref_index[i];
3177 dst->mb_type = src->mb_type;
3178 dst->field_picture = src->field_picture;
3181 void ff_mpeg_er_frame_start(MpegEncContext *s)
3183 ERContext *er = &s->er;
3185 ff_mpeg_set_erpic(&er->cur_pic, s->current_picture_ptr);
3186 ff_mpeg_set_erpic(&er->next_pic, s->next_picture_ptr);
3187 ff_mpeg_set_erpic(&er->last_pic, s->last_picture_ptr);
3189 er->pp_time = s->pp_time;
3190 er->pb_time = s->pb_time;
3191 er->quarter_sample = s->quarter_sample;
3192 er->partitioned_frame = s->partitioned_frame;
3194 ff_er_frame_start(er);
3196 #endif /* CONFIG_ERROR_RESILIENCE */