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->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 s->b4_stride = s->mb_width * 4 + 1;
1089 mb_array_size = s->mb_height * s->mb_stride;
1090 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
1092 /* set default edge pos, will be overriden
1093 * in decode_header if needed */
1094 s->h_edge_pos = s->mb_width * 16;
1095 s->v_edge_pos = s->mb_height * 16;
1097 s->mb_num = s->mb_width * s->mb_height;
1102 s->block_wrap[3] = s->b8_stride;
1104 s->block_wrap[5] = s->mb_stride;
1106 y_size = s->b8_stride * (2 * s->mb_height + 1);
1107 c_size = s->mb_stride * (s->mb_height + 1);
1108 yc_size = y_size + 2 * c_size;
1110 if (s->mb_height & 1)
1111 yc_size += 2*s->b8_stride + 2*s->mb_stride;
1113 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
1114 for (y = 0; y < s->mb_height; y++)
1115 for (x = 0; x < s->mb_width; x++)
1116 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
1118 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
1121 /* Allocate MV tables */
1122 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1123 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1124 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1125 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1126 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1127 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1128 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
1129 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
1130 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
1131 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
1132 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
1133 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
1135 /* Allocate MB type table */
1136 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
1138 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
1140 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
1141 mb_array_size * sizeof(float), fail);
1142 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
1143 mb_array_size * sizeof(float), fail);
1147 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
1148 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
1149 /* interlaced direct mode decoding tables */
1150 for (i = 0; i < 2; i++) {
1152 for (j = 0; j < 2; j++) {
1153 for (k = 0; k < 2; k++) {
1154 FF_ALLOCZ_OR_GOTO(s->avctx,
1155 s->b_field_mv_table_base[i][j][k],
1156 mv_table_size * 2 * sizeof(int16_t),
1158 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
1161 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
1162 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
1163 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
1165 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
1168 if (s->out_format == FMT_H263) {
1170 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
1171 s->coded_block = s->coded_block_base + s->b8_stride + 1;
1173 /* cbp, ac_pred, pred_dir */
1174 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
1175 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
1178 if (s->h263_pred || s->h263_plus || !s->encoding) {
1180 // MN: we need these for error resilience of intra-frames
1181 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
1182 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
1183 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
1184 s->dc_val[2] = s->dc_val[1] + c_size;
1185 for (i = 0; i < yc_size; i++)
1186 s->dc_val_base[i] = 1024;
1189 /* which mb is a intra block */
1190 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
1191 memset(s->mbintra_table, 1, mb_array_size);
1193 /* init macroblock skip table */
1194 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
1195 // Note the + 1 is for a quicker mpeg4 slice_end detection
1199 return AVERROR(ENOMEM);
1203 * init common structure for both encoder and decoder.
1204 * this assumes that some variables like width/height are already set
1206 av_cold int ff_MPV_common_init(MpegEncContext *s)
1209 int nb_slices = (HAVE_THREADS &&
1210 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
1211 s->avctx->thread_count : 1;
1213 if (s->encoding && s->avctx->slices)
1214 nb_slices = s->avctx->slices;
1216 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1217 s->mb_height = (s->height + 31) / 32 * 2;
1219 s->mb_height = (s->height + 15) / 16;
1221 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1222 av_log(s->avctx, AV_LOG_ERROR,
1223 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1227 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1230 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1232 max_slices = MAX_THREADS;
1233 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1234 " reducing to %d\n", nb_slices, max_slices);
1235 nb_slices = max_slices;
1238 if ((s->width || s->height) &&
1239 av_image_check_size(s->width, s->height, 0, s->avctx))
1242 ff_dct_common_init(s);
1244 s->flags = s->avctx->flags;
1245 s->flags2 = s->avctx->flags2;
1247 /* set chroma shifts */
1248 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
1250 &s->chroma_y_shift);
1252 /* convert fourcc to upper case */
1253 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
1255 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
1257 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1258 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1259 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1260 s->picture[i].f = av_frame_alloc();
1261 if (!s->picture[i].f)
1264 memset(&s->next_picture, 0, sizeof(s->next_picture));
1265 memset(&s->last_picture, 0, sizeof(s->last_picture));
1266 memset(&s->current_picture, 0, sizeof(s->current_picture));
1267 memset(&s->new_picture, 0, sizeof(s->new_picture));
1268 s->next_picture.f = av_frame_alloc();
1269 if (!s->next_picture.f)
1271 s->last_picture.f = av_frame_alloc();
1272 if (!s->last_picture.f)
1274 s->current_picture.f = av_frame_alloc();
1275 if (!s->current_picture.f)
1277 s->new_picture.f = av_frame_alloc();
1278 if (!s->new_picture.f)
1281 if (init_context_frame(s))
1284 s->parse_context.state = -1;
1286 s->context_initialized = 1;
1287 s->thread_context[0] = s;
1289 // if (s->width && s->height) {
1290 if (nb_slices > 1) {
1291 for (i = 1; i < nb_slices; i++) {
1292 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1293 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1296 for (i = 0; i < nb_slices; 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 int 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;
1375 int ff_MPV_common_frame_size_change(MpegEncContext *s)
1379 if (s->slice_context_count > 1) {
1380 for (i = 0; i < s->slice_context_count; i++) {
1381 free_duplicate_context(s->thread_context[i]);
1383 for (i = 1; i < s->slice_context_count; i++) {
1384 av_freep(&s->thread_context[i]);
1387 free_duplicate_context(s);
1389 if ((err = free_context_frame(s)) < 0)
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 av_image_check_size(s->width, s->height, 0, s->avctx))
1409 return AVERROR_INVALIDDATA;
1411 if ((err = init_context_frame(s)))
1414 s->thread_context[0] = s;
1416 if (s->width && s->height) {
1417 int nb_slices = s->slice_context_count;
1418 if (nb_slices > 1) {
1419 for (i = 1; i < nb_slices; i++) {
1420 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1421 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1424 for (i = 0; i < nb_slices; i++) {
1425 if (init_duplicate_context(s->thread_context[i]) < 0)
1427 s->thread_context[i]->start_mb_y =
1428 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1429 s->thread_context[i]->end_mb_y =
1430 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1433 err = init_duplicate_context(s);
1437 s->end_mb_y = s->mb_height;
1439 s->slice_context_count = nb_slices;
1444 ff_MPV_common_end(s);
1448 /* init common structure for both encoder and decoder */
1449 void ff_MPV_common_end(MpegEncContext *s)
1453 if (s->slice_context_count > 1) {
1454 for (i = 0; i < s->slice_context_count; i++) {
1455 free_duplicate_context(s->thread_context[i]);
1457 for (i = 1; i < s->slice_context_count; i++) {
1458 av_freep(&s->thread_context[i]);
1460 s->slice_context_count = 1;
1461 } else free_duplicate_context(s);
1463 av_freep(&s->parse_context.buffer);
1464 s->parse_context.buffer_size = 0;
1466 av_freep(&s->bitstream_buffer);
1467 s->allocated_bitstream_buffer_size = 0;
1470 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1471 ff_free_picture_tables(&s->picture[i]);
1472 ff_mpeg_unref_picture(s, &s->picture[i]);
1473 av_frame_free(&s->picture[i].f);
1476 av_freep(&s->picture);
1477 ff_free_picture_tables(&s->last_picture);
1478 ff_mpeg_unref_picture(s, &s->last_picture);
1479 av_frame_free(&s->last_picture.f);
1480 ff_free_picture_tables(&s->current_picture);
1481 ff_mpeg_unref_picture(s, &s->current_picture);
1482 av_frame_free(&s->current_picture.f);
1483 ff_free_picture_tables(&s->next_picture);
1484 ff_mpeg_unref_picture(s, &s->next_picture);
1485 av_frame_free(&s->next_picture.f);
1486 ff_free_picture_tables(&s->new_picture);
1487 ff_mpeg_unref_picture(s, &s->new_picture);
1488 av_frame_free(&s->new_picture.f);
1490 free_context_frame(s);
1492 s->context_initialized = 0;
1493 s->last_picture_ptr =
1494 s->next_picture_ptr =
1495 s->current_picture_ptr = NULL;
1496 s->linesize = s->uvlinesize = 0;
1499 av_cold void ff_init_rl(RLTable *rl,
1500 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1502 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1503 uint8_t index_run[MAX_RUN + 1];
1504 int last, run, level, start, end, i;
1506 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1507 if (static_store && rl->max_level[0])
1510 /* compute max_level[], max_run[] and index_run[] */
1511 for (last = 0; last < 2; last++) {
1520 memset(max_level, 0, MAX_RUN + 1);
1521 memset(max_run, 0, MAX_LEVEL + 1);
1522 memset(index_run, rl->n, MAX_RUN + 1);
1523 for (i = start; i < end; i++) {
1524 run = rl->table_run[i];
1525 level = rl->table_level[i];
1526 if (index_run[run] == rl->n)
1528 if (level > max_level[run])
1529 max_level[run] = level;
1530 if (run > max_run[level])
1531 max_run[level] = run;
1534 rl->max_level[last] = static_store[last];
1536 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1537 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1539 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1541 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1542 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1544 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1546 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1547 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1551 av_cold void ff_init_vlc_rl(RLTable *rl)
1555 for (q = 0; q < 32; q++) {
1557 int qadd = (q - 1) | 1;
1563 for (i = 0; i < rl->vlc.table_size; i++) {
1564 int code = rl->vlc.table[i][0];
1565 int len = rl->vlc.table[i][1];
1568 if (len == 0) { // illegal code
1571 } else if (len < 0) { // more bits needed
1575 if (code == rl->n) { // esc
1579 run = rl->table_run[code] + 1;
1580 level = rl->table_level[code] * qmul + qadd;
1581 if (code >= rl->last) run += 192;
1584 rl->rl_vlc[q][i].len = len;
1585 rl->rl_vlc[q][i].level = level;
1586 rl->rl_vlc[q][i].run = run;
1591 static void release_unused_pictures(MpegEncContext *s)
1595 /* release non reference frames */
1596 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1597 if (!s->picture[i].reference)
1598 ff_mpeg_unref_picture(s, &s->picture[i]);
1602 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1604 if (pic == s->last_picture_ptr)
1606 if (pic->f->buf[0] == NULL)
1608 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1613 static int find_unused_picture(MpegEncContext *s, int shared)
1618 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1619 if (s->picture[i].f->buf[0] == NULL && &s->picture[i] != s->last_picture_ptr)
1623 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1624 if (pic_is_unused(s, &s->picture[i]))
1629 av_log(s->avctx, AV_LOG_FATAL,
1630 "Internal error, picture buffer overflow\n");
1631 /* We could return -1, but the codec would crash trying to draw into a
1632 * non-existing frame anyway. This is safer than waiting for a random crash.
1633 * Also the return of this is never useful, an encoder must only allocate
1634 * as much as allowed in the specification. This has no relationship to how
1635 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1636 * enough for such valid streams).
1637 * Plus, a decoder has to check stream validity and remove frames if too
1638 * many reference frames are around. Waiting for "OOM" is not correct at
1639 * all. Similarly, missing reference frames have to be replaced by
1640 * interpolated/MC frames, anything else is a bug in the codec ...
1646 int ff_find_unused_picture(MpegEncContext *s, int shared)
1648 int ret = find_unused_picture(s, shared);
1650 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1651 if (s->picture[ret].needs_realloc) {
1652 s->picture[ret].needs_realloc = 0;
1653 ff_free_picture_tables(&s->picture[ret]);
1654 ff_mpeg_unref_picture(s, &s->picture[ret]);
1661 * generic function called after decoding
1662 * the header and before a frame is decoded.
1664 int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1670 if (!ff_thread_can_start_frame(avctx)) {
1671 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1675 /* mark & release old frames */
1676 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1677 s->last_picture_ptr != s->next_picture_ptr &&
1678 s->last_picture_ptr->f->buf[0]) {
1679 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1682 /* release forgotten pictures */
1683 /* if (mpeg124/h263) */
1684 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1685 if (&s->picture[i] != s->last_picture_ptr &&
1686 &s->picture[i] != s->next_picture_ptr &&
1687 s->picture[i].reference && !s->picture[i].needs_realloc) {
1688 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1689 av_log(avctx, AV_LOG_ERROR,
1690 "releasing zombie picture\n");
1691 ff_mpeg_unref_picture(s, &s->picture[i]);
1695 ff_mpeg_unref_picture(s, &s->current_picture);
1697 release_unused_pictures(s);
1699 if (s->current_picture_ptr &&
1700 s->current_picture_ptr->f->buf[0] == NULL) {
1701 // we already have a unused image
1702 // (maybe it was set before reading the header)
1703 pic = s->current_picture_ptr;
1705 i = ff_find_unused_picture(s, 0);
1707 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1710 pic = &s->picture[i];
1714 if (!s->droppable) {
1715 if (s->pict_type != AV_PICTURE_TYPE_B)
1719 pic->f->coded_picture_number = s->coded_picture_number++;
1721 if (ff_alloc_picture(s, pic, 0) < 0)
1724 s->current_picture_ptr = pic;
1725 // FIXME use only the vars from current_pic
1726 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1727 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1728 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1729 if (s->picture_structure != PICT_FRAME)
1730 s->current_picture_ptr->f->top_field_first =
1731 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1733 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1734 !s->progressive_sequence;
1735 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1737 s->current_picture_ptr->f->pict_type = s->pict_type;
1738 // if (s->flags && CODEC_FLAG_QSCALE)
1739 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1740 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1742 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1743 s->current_picture_ptr)) < 0)
1746 if (s->pict_type != AV_PICTURE_TYPE_B) {
1747 s->last_picture_ptr = s->next_picture_ptr;
1749 s->next_picture_ptr = s->current_picture_ptr;
1751 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1752 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1753 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1754 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1755 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1756 s->pict_type, s->droppable);
1758 if ((s->last_picture_ptr == NULL ||
1759 s->last_picture_ptr->f->buf[0] == NULL) &&
1760 (s->pict_type != AV_PICTURE_TYPE_I ||
1761 s->picture_structure != PICT_FRAME)) {
1762 int h_chroma_shift, v_chroma_shift;
1763 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1764 &h_chroma_shift, &v_chroma_shift);
1765 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1766 av_log(avctx, AV_LOG_DEBUG,
1767 "allocating dummy last picture for B frame\n");
1768 else if (s->pict_type != AV_PICTURE_TYPE_I)
1769 av_log(avctx, AV_LOG_ERROR,
1770 "warning: first frame is no keyframe\n");
1771 else if (s->picture_structure != PICT_FRAME)
1772 av_log(avctx, AV_LOG_DEBUG,
1773 "allocate dummy last picture for field based first keyframe\n");
1775 /* Allocate a dummy frame */
1776 i = ff_find_unused_picture(s, 0);
1778 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1781 s->last_picture_ptr = &s->picture[i];
1783 s->last_picture_ptr->reference = 3;
1784 s->last_picture_ptr->f->key_frame = 0;
1785 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1787 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1788 s->last_picture_ptr = NULL;
1792 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1793 for(i=0; i<avctx->height; i++)
1794 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1795 0x80, avctx->width);
1796 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1797 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1798 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1799 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1800 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1803 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1804 for(i=0; i<avctx->height; i++)
1805 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1809 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1810 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1812 if ((s->next_picture_ptr == NULL ||
1813 s->next_picture_ptr->f->buf[0] == NULL) &&
1814 s->pict_type == AV_PICTURE_TYPE_B) {
1815 /* Allocate a dummy frame */
1816 i = ff_find_unused_picture(s, 0);
1818 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1821 s->next_picture_ptr = &s->picture[i];
1823 s->next_picture_ptr->reference = 3;
1824 s->next_picture_ptr->f->key_frame = 0;
1825 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1827 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1828 s->next_picture_ptr = NULL;
1831 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1832 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1835 #if 0 // BUFREF-FIXME
1836 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1837 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1839 if (s->last_picture_ptr) {
1840 ff_mpeg_unref_picture(s, &s->last_picture);
1841 if (s->last_picture_ptr->f->buf[0] &&
1842 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1843 s->last_picture_ptr)) < 0)
1846 if (s->next_picture_ptr) {
1847 ff_mpeg_unref_picture(s, &s->next_picture);
1848 if (s->next_picture_ptr->f->buf[0] &&
1849 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1850 s->next_picture_ptr)) < 0)
1854 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1855 s->last_picture_ptr->f->buf[0]));
1857 if (s->picture_structure!= PICT_FRAME) {
1859 for (i = 0; i < 4; i++) {
1860 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1861 s->current_picture.f->data[i] +=
1862 s->current_picture.f->linesize[i];
1864 s->current_picture.f->linesize[i] *= 2;
1865 s->last_picture.f->linesize[i] *= 2;
1866 s->next_picture.f->linesize[i] *= 2;
1870 s->err_recognition = avctx->err_recognition;
1872 /* set dequantizer, we can't do it during init as
1873 * it might change for mpeg4 and we can't do it in the header
1874 * decode as init is not called for mpeg4 there yet */
1875 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1876 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1877 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1878 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1879 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1880 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1882 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1883 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1889 /* called after a frame has been decoded. */
1890 void ff_MPV_frame_end(MpegEncContext *s)
1894 if (s->current_picture.reference)
1895 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1899 * Draw a line from (ex, ey) -> (sx, sy).
1900 * @param w width of the image
1901 * @param h height of the image
1902 * @param stride stride/linesize of the image
1903 * @param color color of the arrow
1905 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1906 int w, int h, int stride, int color)
1910 sx = av_clip(sx, 0, w - 1);
1911 sy = av_clip(sy, 0, h - 1);
1912 ex = av_clip(ex, 0, w - 1);
1913 ey = av_clip(ey, 0, h - 1);
1915 buf[sy * stride + sx] += color;
1917 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1919 FFSWAP(int, sx, ex);
1920 FFSWAP(int, sy, ey);
1922 buf += sx + sy * stride;
1924 f = ((ey - sy) << 16) / ex;
1925 for (x = 0; x <= ex; x++) {
1927 fr = (x * f) & 0xFFFF;
1928 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1929 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1933 FFSWAP(int, sx, ex);
1934 FFSWAP(int, sy, ey);
1936 buf += sx + sy * stride;
1939 f = ((ex - sx) << 16) / ey;
1942 for(y= 0; y <= ey; y++){
1944 fr = (y*f) & 0xFFFF;
1945 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1946 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1952 * Draw an arrow from (ex, ey) -> (sx, sy).
1953 * @param w width of the image
1954 * @param h height of the image
1955 * @param stride stride/linesize of the image
1956 * @param color color of the arrow
1958 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1959 int ey, int w, int h, int stride, int color)
1963 sx = av_clip(sx, -100, w + 100);
1964 sy = av_clip(sy, -100, h + 100);
1965 ex = av_clip(ex, -100, w + 100);
1966 ey = av_clip(ey, -100, h + 100);
1971 if (dx * dx + dy * dy > 3 * 3) {
1974 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1976 // FIXME subpixel accuracy
1977 rx = ROUNDED_DIV(rx * 3 << 4, length);
1978 ry = ROUNDED_DIV(ry * 3 << 4, length);
1980 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1981 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1983 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1987 * Print debugging info for the given picture.
1989 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
1990 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
1992 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1994 if (avctx->hwaccel || !mbtype_table
1995 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1999 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
2002 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
2003 av_get_picture_type_char(pict->pict_type));
2004 for (y = 0; y < mb_height; y++) {
2005 for (x = 0; x < mb_width; x++) {
2006 if (avctx->debug & FF_DEBUG_SKIP) {
2007 int count = mbskip_table[x + y * mb_stride];
2010 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
2012 if (avctx->debug & FF_DEBUG_QP) {
2013 av_log(avctx, AV_LOG_DEBUG, "%2d",
2014 qscale_table[x + y * mb_stride]);
2016 if (avctx->debug & FF_DEBUG_MB_TYPE) {
2017 int mb_type = mbtype_table[x + y * mb_stride];
2018 // Type & MV direction
2019 if (IS_PCM(mb_type))
2020 av_log(avctx, AV_LOG_DEBUG, "P");
2021 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
2022 av_log(avctx, AV_LOG_DEBUG, "A");
2023 else if (IS_INTRA4x4(mb_type))
2024 av_log(avctx, AV_LOG_DEBUG, "i");
2025 else if (IS_INTRA16x16(mb_type))
2026 av_log(avctx, AV_LOG_DEBUG, "I");
2027 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
2028 av_log(avctx, AV_LOG_DEBUG, "d");
2029 else if (IS_DIRECT(mb_type))
2030 av_log(avctx, AV_LOG_DEBUG, "D");
2031 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
2032 av_log(avctx, AV_LOG_DEBUG, "g");
2033 else if (IS_GMC(mb_type))
2034 av_log(avctx, AV_LOG_DEBUG, "G");
2035 else if (IS_SKIP(mb_type))
2036 av_log(avctx, AV_LOG_DEBUG, "S");
2037 else if (!USES_LIST(mb_type, 1))
2038 av_log(avctx, AV_LOG_DEBUG, ">");
2039 else if (!USES_LIST(mb_type, 0))
2040 av_log(avctx, AV_LOG_DEBUG, "<");
2042 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2043 av_log(avctx, AV_LOG_DEBUG, "X");
2047 if (IS_8X8(mb_type))
2048 av_log(avctx, AV_LOG_DEBUG, "+");
2049 else if (IS_16X8(mb_type))
2050 av_log(avctx, AV_LOG_DEBUG, "-");
2051 else if (IS_8X16(mb_type))
2052 av_log(avctx, AV_LOG_DEBUG, "|");
2053 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
2054 av_log(avctx, AV_LOG_DEBUG, " ");
2056 av_log(avctx, AV_LOG_DEBUG, "?");
2059 if (IS_INTERLACED(mb_type))
2060 av_log(avctx, AV_LOG_DEBUG, "=");
2062 av_log(avctx, AV_LOG_DEBUG, " ");
2065 av_log(avctx, AV_LOG_DEBUG, "\n");
2069 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
2070 (avctx->debug_mv)) {
2071 const int shift = 1 + quarter_sample;
2075 int h_chroma_shift, v_chroma_shift, block_height;
2076 const int width = avctx->width;
2077 const int height = avctx->height;
2078 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2079 const int mv_stride = (mb_width << mv_sample_log2) +
2080 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2082 *low_delay = 0; // needed to see the vectors without trashing the buffers
2084 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
2086 av_frame_make_writable(pict);
2088 pict->opaque = NULL;
2089 ptr = pict->data[0];
2090 block_height = 16 >> v_chroma_shift;
2092 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2094 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2095 const int mb_index = mb_x + mb_y * mb_stride;
2096 if ((avctx->debug_mv) && motion_val[0]) {
2098 for (type = 0; type < 3; type++) {
2102 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
2103 (pict->pict_type!= AV_PICTURE_TYPE_P))
2108 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
2109 (pict->pict_type!= AV_PICTURE_TYPE_B))
2114 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2115 (pict->pict_type!= AV_PICTURE_TYPE_B))
2120 if (!USES_LIST(mbtype_table[mb_index], direction))
2123 if (IS_8X8(mbtype_table[mb_index])) {
2125 for (i = 0; i < 4; i++) {
2126 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2127 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2128 int xy = (mb_x * 2 + (i & 1) +
2129 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2130 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2131 int my = (motion_val[direction][xy][1] >> shift) + sy;
2132 draw_arrow(ptr, sx, sy, mx, my, width,
2133 height, pict->linesize[0], 100);
2135 } else if (IS_16X8(mbtype_table[mb_index])) {
2137 for (i = 0; i < 2; i++) {
2138 int sx = mb_x * 16 + 8;
2139 int sy = mb_y * 16 + 4 + 8 * i;
2140 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2141 int mx = (motion_val[direction][xy][0] >> shift);
2142 int my = (motion_val[direction][xy][1] >> shift);
2144 if (IS_INTERLACED(mbtype_table[mb_index]))
2147 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2148 height, pict->linesize[0], 100);
2150 } else if (IS_8X16(mbtype_table[mb_index])) {
2152 for (i = 0; i < 2; i++) {
2153 int sx = mb_x * 16 + 4 + 8 * i;
2154 int sy = mb_y * 16 + 8;
2155 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2156 int mx = motion_val[direction][xy][0] >> shift;
2157 int my = motion_val[direction][xy][1] >> shift;
2159 if (IS_INTERLACED(mbtype_table[mb_index]))
2162 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2163 height, pict->linesize[0], 100);
2166 int sx= mb_x * 16 + 8;
2167 int sy= mb_y * 16 + 8;
2168 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2169 int mx= (motion_val[direction][xy][0]>>shift) + sx;
2170 int my= (motion_val[direction][xy][1]>>shift) + sy;
2171 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100);
2175 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2176 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
2177 0x0101010101010101ULL;
2179 for (y = 0; y < block_height; y++) {
2180 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2181 (block_height * mb_y + y) *
2182 pict->linesize[1]) = c;
2183 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2184 (block_height * mb_y + y) *
2185 pict->linesize[2]) = c;
2188 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2190 int mb_type = mbtype_table[mb_index];
2193 #define COLOR(theta, r) \
2194 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2195 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2199 if (IS_PCM(mb_type)) {
2201 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2202 IS_INTRA16x16(mb_type)) {
2204 } else if (IS_INTRA4x4(mb_type)) {
2206 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2208 } else if (IS_DIRECT(mb_type)) {
2210 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2212 } else if (IS_GMC(mb_type)) {
2214 } else if (IS_SKIP(mb_type)) {
2216 } else if (!USES_LIST(mb_type, 1)) {
2218 } else if (!USES_LIST(mb_type, 0)) {
2221 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2225 u *= 0x0101010101010101ULL;
2226 v *= 0x0101010101010101ULL;
2227 for (y = 0; y < block_height; y++) {
2228 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2229 (block_height * mb_y + y) * pict->linesize[1]) = u;
2230 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2231 (block_height * mb_y + y) * pict->linesize[2]) = v;
2235 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2236 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2237 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2238 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2239 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2241 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2242 for (y = 0; y < 16; y++)
2243 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2244 pict->linesize[0]] ^= 0x80;
2246 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2247 int dm = 1 << (mv_sample_log2 - 2);
2248 for (i = 0; i < 4; i++) {
2249 int sx = mb_x * 16 + 8 * (i & 1);
2250 int sy = mb_y * 16 + 8 * (i >> 1);
2251 int xy = (mb_x * 2 + (i & 1) +
2252 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2254 int32_t *mv = (int32_t *) &motion_val[0][xy];
2255 if (mv[0] != mv[dm] ||
2256 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2257 for (y = 0; y < 8; y++)
2258 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2259 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2260 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2261 pict->linesize[0]) ^= 0x8080808080808080ULL;
2265 if (IS_INTERLACED(mb_type) &&
2266 avctx->codec->id == AV_CODEC_ID_H264) {
2270 mbskip_table[mb_index] = 0;
2276 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2278 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
2279 p->qscale_table, p->motion_val, &s->low_delay,
2280 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2283 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2285 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2286 int offset = 2*s->mb_stride + 1;
2288 return AVERROR(ENOMEM);
2289 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2290 ref->size -= offset;
2291 ref->data += offset;
2292 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2295 static inline int hpel_motion_lowres(MpegEncContext *s,
2296 uint8_t *dest, uint8_t *src,
2297 int field_based, int field_select,
2298 int src_x, int src_y,
2299 int width, int height, ptrdiff_t stride,
2300 int h_edge_pos, int v_edge_pos,
2301 int w, int h, h264_chroma_mc_func *pix_op,
2302 int motion_x, int motion_y)
2304 const int lowres = s->avctx->lowres;
2305 const int op_index = FFMIN(lowres, 3);
2306 const int s_mask = (2 << lowres) - 1;
2310 if (s->quarter_sample) {
2315 sx = motion_x & s_mask;
2316 sy = motion_y & s_mask;
2317 src_x += motion_x >> lowres + 1;
2318 src_y += motion_y >> lowres + 1;
2320 src += src_y * stride + src_x;
2322 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2323 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2324 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
2325 s->linesize, s->linesize,
2326 w + 1, (h + 1) << field_based,
2327 src_x, src_y << field_based,
2328 h_edge_pos, v_edge_pos);
2329 src = s->edge_emu_buffer;
2333 sx = (sx << 2) >> lowres;
2334 sy = (sy << 2) >> lowres;
2337 pix_op[op_index](dest, src, stride, h, sx, sy);
2341 /* apply one mpeg motion vector to the three components */
2342 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2349 uint8_t **ref_picture,
2350 h264_chroma_mc_func *pix_op,
2351 int motion_x, int motion_y,
2354 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2355 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2356 ptrdiff_t uvlinesize, linesize;
2357 const int lowres = s->avctx->lowres;
2358 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2359 const int block_s = 8>>lowres;
2360 const int s_mask = (2 << lowres) - 1;
2361 const int h_edge_pos = s->h_edge_pos >> lowres;
2362 const int v_edge_pos = s->v_edge_pos >> lowres;
2363 linesize = s->current_picture.f->linesize[0] << field_based;
2364 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2366 // FIXME obviously not perfect but qpel will not work in lowres anyway
2367 if (s->quarter_sample) {
2373 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2376 sx = motion_x & s_mask;
2377 sy = motion_y & s_mask;
2378 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2379 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2381 if (s->out_format == FMT_H263) {
2382 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2383 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2384 uvsrc_x = src_x >> 1;
2385 uvsrc_y = src_y >> 1;
2386 } else if (s->out_format == FMT_H261) {
2387 // even chroma mv's are full pel in H261
2390 uvsx = (2 * mx) & s_mask;
2391 uvsy = (2 * my) & s_mask;
2392 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2393 uvsrc_y = mb_y * block_s + (my >> lowres);
2395 if(s->chroma_y_shift){
2400 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2401 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2403 if(s->chroma_x_shift){
2407 uvsy = motion_y & s_mask;
2409 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2412 uvsx = motion_x & s_mask;
2413 uvsy = motion_y & s_mask;
2420 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2421 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2422 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2424 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2425 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2426 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2427 linesize >> field_based, linesize >> field_based,
2428 17, 17 + field_based,
2429 src_x, src_y << field_based, h_edge_pos,
2431 ptr_y = s->edge_emu_buffer;
2432 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2433 uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
2434 s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
2435 uvlinesize >> field_based, uvlinesize >> field_based,
2437 uvsrc_x, uvsrc_y << field_based,
2438 h_edge_pos >> 1, v_edge_pos >> 1);
2439 s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
2440 uvlinesize >> field_based,uvlinesize >> field_based,
2442 uvsrc_x, uvsrc_y << field_based,
2443 h_edge_pos >> 1, v_edge_pos >> 1);
2445 ptr_cr = uvbuf + 16;
2449 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2451 dest_y += s->linesize;
2452 dest_cb += s->uvlinesize;
2453 dest_cr += s->uvlinesize;
2457 ptr_y += s->linesize;
2458 ptr_cb += s->uvlinesize;
2459 ptr_cr += s->uvlinesize;
2462 sx = (sx << 2) >> lowres;
2463 sy = (sy << 2) >> lowres;
2464 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2466 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2467 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2468 uvsx = (uvsx << 2) >> lowres;
2469 uvsy = (uvsy << 2) >> lowres;
2471 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2472 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2475 // FIXME h261 lowres loop filter
2478 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2479 uint8_t *dest_cb, uint8_t *dest_cr,
2480 uint8_t **ref_picture,
2481 h264_chroma_mc_func * pix_op,
2484 const int lowres = s->avctx->lowres;
2485 const int op_index = FFMIN(lowres, 3);
2486 const int block_s = 8 >> lowres;
2487 const int s_mask = (2 << lowres) - 1;
2488 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2489 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2490 int emu = 0, src_x, src_y, sx, sy;
2494 if (s->quarter_sample) {
2499 /* In case of 8X8, we construct a single chroma motion vector
2500 with a special rounding */
2501 mx = ff_h263_round_chroma(mx);
2502 my = ff_h263_round_chroma(my);
2506 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2507 src_y = s->mb_y * block_s + (my >> lowres + 1);
2509 offset = src_y * s->uvlinesize + src_x;
2510 ptr = ref_picture[1] + offset;
2511 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2512 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2513 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2514 s->uvlinesize, s->uvlinesize,
2516 src_x, src_y, h_edge_pos, v_edge_pos);
2517 ptr = s->edge_emu_buffer;
2520 sx = (sx << 2) >> lowres;
2521 sy = (sy << 2) >> lowres;
2522 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2524 ptr = ref_picture[2] + offset;
2526 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2527 s->uvlinesize, s->uvlinesize,
2529 src_x, src_y, h_edge_pos, v_edge_pos);
2530 ptr = s->edge_emu_buffer;
2532 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2536 * motion compensation of a single macroblock
2538 * @param dest_y luma destination pointer
2539 * @param dest_cb chroma cb/u destination pointer
2540 * @param dest_cr chroma cr/v destination pointer
2541 * @param dir direction (0->forward, 1->backward)
2542 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2543 * @param pix_op halfpel motion compensation function (average or put normally)
2544 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2546 static inline void MPV_motion_lowres(MpegEncContext *s,
2547 uint8_t *dest_y, uint8_t *dest_cb,
2549 int dir, uint8_t **ref_picture,
2550 h264_chroma_mc_func *pix_op)
2554 const int lowres = s->avctx->lowres;
2555 const int block_s = 8 >>lowres;
2560 switch (s->mv_type) {
2562 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2564 ref_picture, pix_op,
2565 s->mv[dir][0][0], s->mv[dir][0][1],
2571 for (i = 0; i < 4; i++) {
2572 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2573 s->linesize) * block_s,
2574 ref_picture[0], 0, 0,
2575 (2 * mb_x + (i & 1)) * block_s,
2576 (2 * mb_y + (i >> 1)) * block_s,
2577 s->width, s->height, s->linesize,
2578 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2579 block_s, block_s, pix_op,
2580 s->mv[dir][i][0], s->mv[dir][i][1]);
2582 mx += s->mv[dir][i][0];
2583 my += s->mv[dir][i][1];
2586 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2587 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2591 if (s->picture_structure == PICT_FRAME) {
2593 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2594 1, 0, s->field_select[dir][0],
2595 ref_picture, pix_op,
2596 s->mv[dir][0][0], s->mv[dir][0][1],
2599 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2600 1, 1, s->field_select[dir][1],
2601 ref_picture, pix_op,
2602 s->mv[dir][1][0], s->mv[dir][1][1],
2605 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2606 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2607 ref_picture = s->current_picture_ptr->f->data;
2610 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2611 0, 0, s->field_select[dir][0],
2612 ref_picture, pix_op,
2614 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2618 for (i = 0; i < 2; i++) {
2619 uint8_t **ref2picture;
2621 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2622 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2623 ref2picture = ref_picture;
2625 ref2picture = s->current_picture_ptr->f->data;
2628 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2629 0, 0, s->field_select[dir][i],
2630 ref2picture, pix_op,
2631 s->mv[dir][i][0], s->mv[dir][i][1] +
2632 2 * block_s * i, block_s, mb_y >> 1);
2634 dest_y += 2 * block_s * s->linesize;
2635 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2636 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2640 if (s->picture_structure == PICT_FRAME) {
2641 for (i = 0; i < 2; i++) {
2643 for (j = 0; j < 2; j++) {
2644 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2646 ref_picture, pix_op,
2647 s->mv[dir][2 * i + j][0],
2648 s->mv[dir][2 * i + j][1],
2651 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2654 for (i = 0; i < 2; i++) {
2655 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2656 0, 0, s->picture_structure != i + 1,
2657 ref_picture, pix_op,
2658 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2659 2 * block_s, mb_y >> 1);
2661 // after put we make avg of the same block
2662 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2664 // opposite parity is always in the same
2665 // frame if this is second field
2666 if (!s->first_field) {
2667 ref_picture = s->current_picture_ptr->f->data;
2678 * find the lowest MB row referenced in the MVs
2680 int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
2682 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2683 int my, off, i, mvs;
2685 if (s->picture_structure != PICT_FRAME || s->mcsel)
2688 switch (s->mv_type) {
2702 for (i = 0; i < mvs; i++) {
2703 my = s->mv[dir][i][1]<<qpel_shift;
2704 my_max = FFMAX(my_max, my);
2705 my_min = FFMIN(my_min, my);
2708 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2710 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2712 return s->mb_height-1;
2715 /* put block[] to dest[] */
2716 static inline void put_dct(MpegEncContext *s,
2717 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2719 s->dct_unquantize_intra(s, block, i, qscale);
2720 s->dsp.idct_put (dest, line_size, block);
2723 /* add block[] to dest[] */
2724 static inline void add_dct(MpegEncContext *s,
2725 int16_t *block, int i, uint8_t *dest, int line_size)
2727 if (s->block_last_index[i] >= 0) {
2728 s->dsp.idct_add (dest, line_size, block);
2732 static inline void add_dequant_dct(MpegEncContext *s,
2733 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2735 if (s->block_last_index[i] >= 0) {
2736 s->dct_unquantize_inter(s, block, i, qscale);
2738 s->dsp.idct_add (dest, line_size, block);
2743 * Clean dc, ac, coded_block for the current non-intra MB.
2745 void ff_clean_intra_table_entries(MpegEncContext *s)
2747 int wrap = s->b8_stride;
2748 int xy = s->block_index[0];
2751 s->dc_val[0][xy + 1 ] =
2752 s->dc_val[0][xy + wrap] =
2753 s->dc_val[0][xy + 1 + wrap] = 1024;
2755 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2756 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2757 if (s->msmpeg4_version>=3) {
2758 s->coded_block[xy ] =
2759 s->coded_block[xy + 1 ] =
2760 s->coded_block[xy + wrap] =
2761 s->coded_block[xy + 1 + wrap] = 0;
2764 wrap = s->mb_stride;
2765 xy = s->mb_x + s->mb_y * wrap;
2767 s->dc_val[2][xy] = 1024;
2769 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2770 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2772 s->mbintra_table[xy]= 0;
2775 /* generic function called after a macroblock has been parsed by the
2776 decoder or after it has been encoded by the encoder.
2778 Important variables used:
2779 s->mb_intra : true if intra macroblock
2780 s->mv_dir : motion vector direction
2781 s->mv_type : motion vector type
2782 s->mv : motion vector
2783 s->interlaced_dct : true if interlaced dct used (mpeg2)
2785 static av_always_inline
2786 void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2787 int lowres_flag, int is_mpeg12)
2789 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2792 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2793 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2797 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2798 /* print DCT coefficients */
2800 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2802 for(j=0; j<64; j++){
2803 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
2805 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2809 s->current_picture.qscale_table[mb_xy] = s->qscale;
2811 /* update DC predictors for P macroblocks */
2813 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2814 if(s->mbintra_table[mb_xy])
2815 ff_clean_intra_table_entries(s);
2819 s->last_dc[2] = 128 << s->intra_dc_precision;
2822 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2823 s->mbintra_table[mb_xy]=1;
2825 if ( (s->flags&CODEC_FLAG_PSNR)
2826 || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor
2827 || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
2828 uint8_t *dest_y, *dest_cb, *dest_cr;
2829 int dct_linesize, dct_offset;
2830 op_pixels_func (*op_pix)[4];
2831 qpel_mc_func (*op_qpix)[16];
2832 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2833 const int uvlinesize = s->current_picture.f->linesize[1];
2834 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2835 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2837 /* avoid copy if macroblock skipped in last frame too */
2838 /* skip only during decoding as we might trash the buffers during encoding a bit */
2840 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2842 if (s->mb_skipped) {
2844 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2846 } else if(!s->current_picture.reference) {
2849 *mbskip_ptr = 0; /* not skipped */
2853 dct_linesize = linesize << s->interlaced_dct;
2854 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2858 dest_cb= s->dest[1];
2859 dest_cr= s->dest[2];
2861 dest_y = s->b_scratchpad;
2862 dest_cb= s->b_scratchpad+16*linesize;
2863 dest_cr= s->b_scratchpad+32*linesize;
2867 /* motion handling */
2868 /* decoding or more than one mb_type (MC was already done otherwise) */
2871 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2872 if (s->mv_dir & MV_DIR_FORWARD) {
2873 ff_thread_await_progress(&s->last_picture_ptr->tf,
2874 ff_MPV_lowest_referenced_row(s, 0),
2877 if (s->mv_dir & MV_DIR_BACKWARD) {
2878 ff_thread_await_progress(&s->next_picture_ptr->tf,
2879 ff_MPV_lowest_referenced_row(s, 1),
2885 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2887 if (s->mv_dir & MV_DIR_FORWARD) {
2888 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2889 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2891 if (s->mv_dir & MV_DIR_BACKWARD) {
2892 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2895 op_qpix = s->me.qpel_put;
2896 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2897 op_pix = s->hdsp.put_pixels_tab;
2899 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2901 if (s->mv_dir & MV_DIR_FORWARD) {
2902 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2903 op_pix = s->hdsp.avg_pixels_tab;
2904 op_qpix= s->me.qpel_avg;
2906 if (s->mv_dir & MV_DIR_BACKWARD) {
2907 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2912 /* skip dequant / idct if we are really late ;) */
2913 if(s->avctx->skip_idct){
2914 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2915 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2916 || s->avctx->skip_idct >= AVDISCARD_ALL)
2920 /* add dct residue */
2921 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2922 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2923 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2924 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2925 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2926 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2928 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2929 if (s->chroma_y_shift){
2930 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2931 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2935 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2936 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2937 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2938 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2941 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2942 add_dct(s, block[0], 0, dest_y , dct_linesize);
2943 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2944 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2945 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2947 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2948 if(s->chroma_y_shift){//Chroma420
2949 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2950 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2953 dct_linesize = uvlinesize << s->interlaced_dct;
2954 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2956 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2957 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2958 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2959 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2960 if(!s->chroma_x_shift){//Chroma444
2961 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2962 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2963 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2964 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2969 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2970 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2973 /* dct only in intra block */
2974 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2975 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2976 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2977 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2978 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2980 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2981 if(s->chroma_y_shift){
2982 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2983 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2987 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2988 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2989 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2990 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2994 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2995 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2996 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2997 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2999 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3000 if(s->chroma_y_shift){
3001 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
3002 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
3005 dct_linesize = uvlinesize << s->interlaced_dct;
3006 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3008 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
3009 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
3010 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
3011 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
3012 if(!s->chroma_x_shift){//Chroma444
3013 s->dsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
3014 s->dsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
3015 s->dsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
3016 s->dsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
3024 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
3025 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
3026 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
3031 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
3033 if(s->out_format == FMT_MPEG1) {
3034 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
3035 else MPV_decode_mb_internal(s, block, 0, 1);
3038 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0);
3039 else MPV_decode_mb_internal(s, block, 0, 0);
3042 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
3044 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
3045 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
3046 s->first_field, s->low_delay);
3049 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3050 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3051 const int uvlinesize = s->current_picture.f->linesize[1];
3052 const int mb_size= 4 - s->avctx->lowres;
3054 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3055 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3056 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3057 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3058 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3059 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;
3060 //block_index is not used by mpeg2, so it is not affected by chroma_format
3062 s->dest[0] = s->current_picture.f->data[0] + ((s->mb_x - 1) << mb_size);
3063 s->dest[1] = s->current_picture.f->data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3064 s->dest[2] = s->current_picture.f->data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3066 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3068 if(s->picture_structure==PICT_FRAME){
3069 s->dest[0] += s->mb_y * linesize << mb_size;
3070 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3071 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3073 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3074 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3075 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3076 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3082 * Permute an 8x8 block.
3083 * @param block the block which will be permuted according to the given permutation vector
3084 * @param permutation the permutation vector
3085 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3086 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3087 * (inverse) permutated to scantable order!
3089 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3095 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3097 for(i=0; i<=last; i++){
3098 const int j= scantable[i];
3103 for(i=0; i<=last; i++){
3104 const int j= scantable[i];
3105 const int perm_j= permutation[j];
3106 block[perm_j]= temp[j];
3110 void ff_mpeg_flush(AVCodecContext *avctx){
3112 MpegEncContext *s = avctx->priv_data;
3114 if(s==NULL || s->picture==NULL)
3117 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3118 ff_mpeg_unref_picture(s, &s->picture[i]);
3119 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3121 ff_mpeg_unref_picture(s, &s->current_picture);
3122 ff_mpeg_unref_picture(s, &s->last_picture);
3123 ff_mpeg_unref_picture(s, &s->next_picture);
3125 s->mb_x= s->mb_y= 0;
3128 s->parse_context.state= -1;
3129 s->parse_context.frame_start_found= 0;
3130 s->parse_context.overread= 0;
3131 s->parse_context.overread_index= 0;
3132 s->parse_context.index= 0;
3133 s->parse_context.last_index= 0;
3134 s->bitstream_buffer_size=0;
3139 * set qscale and update qscale dependent variables.
3141 void ff_set_qscale(MpegEncContext * s, int qscale)
3145 else if (qscale > 31)
3149 s->chroma_qscale= s->chroma_qscale_table[qscale];
3151 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3152 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3155 void ff_MPV_report_decode_progress(MpegEncContext *s)
3157 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3158 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
3161 #if CONFIG_ERROR_RESILIENCE
3162 void ff_mpeg_set_erpic(ERPicture *dst, Picture *src)
3166 memset(dst, 0, sizeof(*dst));
3173 for (i = 0; i < 2; i++) {
3174 dst->motion_val[i] = src->motion_val[i];
3175 dst->ref_index[i] = src->ref_index[i];
3178 dst->mb_type = src->mb_type;
3179 dst->field_picture = src->field_picture;
3182 void ff_mpeg_er_frame_start(MpegEncContext *s)
3184 ERContext *er = &s->er;
3186 ff_mpeg_set_erpic(&er->cur_pic, s->current_picture_ptr);
3187 ff_mpeg_set_erpic(&er->next_pic, s->next_picture_ptr);
3188 ff_mpeg_set_erpic(&er->last_pic, s->last_picture_ptr);
3190 er->pp_time = s->pp_time;
3191 er->pb_time = s->pb_time;
3192 er->quarter_sample = s->quarter_sample;
3193 er->partitioned_frame = s->partitioned_frame;
3195 ff_er_frame_start(er);
3197 #endif /* CONFIG_ERROR_RESILIENCE */