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"
36 #include "h264chroma.h"
39 #include "mpegvideo.h"
45 static const uint8_t ff_default_chroma_qscale_table[32] = {
46 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
47 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
48 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
51 const uint8_t ff_mpeg1_dc_scale_table[128] = {
52 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
53 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
54 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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,
63 static const uint8_t mpeg2_dc_scale_table1[128] = {
64 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
65 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
66 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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,
75 static const uint8_t mpeg2_dc_scale_table2[128] = {
76 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
77 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
78 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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,
87 static const uint8_t mpeg2_dc_scale_table3[128] = {
88 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
89 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
90 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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,
99 const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
100 ff_mpeg1_dc_scale_table,
101 mpeg2_dc_scale_table1,
102 mpeg2_dc_scale_table2,
103 mpeg2_dc_scale_table3,
106 const enum AVPixelFormat ff_pixfmt_list_420[] = {
111 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
112 int16_t *block, int n, int qscale)
114 int i, level, nCoeffs;
115 const uint16_t *quant_matrix;
117 nCoeffs= s->block_last_index[n];
119 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
120 /* XXX: only mpeg1 */
121 quant_matrix = s->intra_matrix;
122 for(i=1;i<=nCoeffs;i++) {
123 int j= s->intra_scantable.permutated[i];
128 level = (int)(level * qscale * quant_matrix[j]) >> 3;
129 level = (level - 1) | 1;
132 level = (int)(level * qscale * quant_matrix[j]) >> 3;
133 level = (level - 1) | 1;
140 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
141 int16_t *block, int n, int qscale)
143 int i, level, nCoeffs;
144 const uint16_t *quant_matrix;
146 nCoeffs= s->block_last_index[n];
148 quant_matrix = s->inter_matrix;
149 for(i=0; i<=nCoeffs; i++) {
150 int j= s->intra_scantable.permutated[i];
155 level = (((level << 1) + 1) * qscale *
156 ((int) (quant_matrix[j]))) >> 4;
157 level = (level - 1) | 1;
160 level = (((level << 1) + 1) * qscale *
161 ((int) (quant_matrix[j]))) >> 4;
162 level = (level - 1) | 1;
169 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
170 int16_t *block, int n, int qscale)
172 int i, level, nCoeffs;
173 const uint16_t *quant_matrix;
175 if(s->alternate_scan) nCoeffs= 63;
176 else nCoeffs= s->block_last_index[n];
178 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
179 quant_matrix = s->intra_matrix;
180 for(i=1;i<=nCoeffs;i++) {
181 int j= s->intra_scantable.permutated[i];
186 level = (int)(level * qscale * quant_matrix[j]) >> 3;
189 level = (int)(level * qscale * quant_matrix[j]) >> 3;
196 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
197 int16_t *block, int n, int qscale)
199 int i, level, nCoeffs;
200 const uint16_t *quant_matrix;
203 if(s->alternate_scan) nCoeffs= 63;
204 else nCoeffs= s->block_last_index[n];
206 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
208 quant_matrix = s->intra_matrix;
209 for(i=1;i<=nCoeffs;i++) {
210 int j= s->intra_scantable.permutated[i];
215 level = (int)(level * qscale * quant_matrix[j]) >> 3;
218 level = (int)(level * qscale * quant_matrix[j]) >> 3;
227 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
228 int16_t *block, int n, int qscale)
230 int i, level, nCoeffs;
231 const uint16_t *quant_matrix;
234 if(s->alternate_scan) nCoeffs= 63;
235 else nCoeffs= s->block_last_index[n];
237 quant_matrix = s->inter_matrix;
238 for(i=0; i<=nCoeffs; i++) {
239 int j= s->intra_scantable.permutated[i];
244 level = (((level << 1) + 1) * qscale *
245 ((int) (quant_matrix[j]))) >> 4;
248 level = (((level << 1) + 1) * qscale *
249 ((int) (quant_matrix[j]))) >> 4;
258 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
259 int16_t *block, int n, int qscale)
261 int i, level, qmul, qadd;
264 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
269 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
270 qadd = (qscale - 1) | 1;
277 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
279 for(i=1; i<=nCoeffs; i++) {
283 level = level * qmul - qadd;
285 level = level * qmul + qadd;
292 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
293 int16_t *block, int n, int qscale)
295 int i, level, qmul, qadd;
298 av_assert2(s->block_last_index[n]>=0);
300 qadd = (qscale - 1) | 1;
303 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
305 for(i=0; i<=nCoeffs; i++) {
309 level = level * qmul - qadd;
311 level = level * qmul + qadd;
318 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
320 int mb_x, int mb_y, int mb_intra, int mb_skipped)
322 MpegEncContext *s = opaque;
325 s->mv_type = mv_type;
326 s->mb_intra = mb_intra;
327 s->mb_skipped = mb_skipped;
330 memcpy(s->mv, mv, sizeof(*mv));
332 ff_init_block_index(s);
333 ff_update_block_index(s);
335 s->dsp.clear_blocks(s->block[0]);
337 s->dest[0] = s->current_picture.f.data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
338 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);
339 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);
342 av_log(s->avctx, AV_LOG_DEBUG, "Interlaced error concealment is not fully implemented\n");
343 ff_MPV_decode_mb(s, s->block);
346 /* init common dct for both encoder and decoder */
347 av_cold int ff_dct_common_init(MpegEncContext *s)
349 ff_dsputil_init(&s->dsp, s->avctx);
350 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
351 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
352 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
354 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
355 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
356 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
357 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
358 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
359 if (s->flags & CODEC_FLAG_BITEXACT)
360 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
361 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
364 ff_MPV_common_init_axp(s);
366 ff_MPV_common_init_arm(s);
368 ff_MPV_common_init_ppc(s);
370 ff_MPV_common_init_x86(s);
372 /* load & permutate scantables
373 * note: only wmv uses different ones
375 if (s->alternate_scan) {
376 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
377 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
379 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
380 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
382 ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
383 ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
388 static int frame_size_alloc(MpegEncContext *s, int linesize)
390 int alloc_size = FFALIGN(FFABS(linesize) + 64, 32);
392 // edge emu needs blocksize + filter length - 1
393 // (= 17x17 for halfpel / 21x21 for h264)
394 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
395 // at uvlinesize. It supports only YUV420 so 24x24 is enough
396 // linesize * interlaced * MBsize
397 FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 4 * 24,
400 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 4 * 16 * 2,
402 s->me.temp = s->me.scratchpad;
403 s->rd_scratchpad = s->me.scratchpad;
404 s->b_scratchpad = s->me.scratchpad;
405 s->obmc_scratchpad = s->me.scratchpad + 16;
409 av_freep(&s->edge_emu_buffer);
410 return AVERROR(ENOMEM);
414 * Allocate a frame buffer
416 static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
418 int edges_needed = av_codec_is_encoder(s->avctx->codec);
422 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
423 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
424 s->codec_id != AV_CODEC_ID_MSS2) {
426 pic->f.width = s->avctx->width + 2 * EDGE_WIDTH;
427 pic->f.height = s->avctx->height + 2 * EDGE_WIDTH;
430 r = ff_thread_get_buffer(s->avctx, &pic->tf,
431 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
433 pic->f.width = s->avctx->width;
434 pic->f.height = s->avctx->height;
435 pic->f.format = s->avctx->pix_fmt;
436 r = avcodec_default_get_buffer2(s->avctx, &pic->f, 0);
439 if (r < 0 || !pic->f.buf[0]) {
440 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
447 for (i = 0; pic->f.data[i]; i++) {
448 int offset = (EDGE_WIDTH >> (i ? s->chroma_y_shift : 0)) *
450 (EDGE_WIDTH >> (i ? s->chroma_x_shift : 0));
451 pic->f.data[i] += offset;
453 pic->f.width = s->avctx->width;
454 pic->f.height = s->avctx->height;
457 if (s->avctx->hwaccel) {
458 assert(!pic->hwaccel_picture_private);
459 if (s->avctx->hwaccel->priv_data_size) {
460 pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size);
461 if (!pic->hwaccel_priv_buf) {
462 av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
465 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
469 if (s->linesize && (s->linesize != pic->f.linesize[0] ||
470 s->uvlinesize != pic->f.linesize[1])) {
471 av_log(s->avctx, AV_LOG_ERROR,
472 "get_buffer() failed (stride changed)\n");
473 ff_mpeg_unref_picture(s, pic);
477 if (pic->f.linesize[1] != pic->f.linesize[2]) {
478 av_log(s->avctx, AV_LOG_ERROR,
479 "get_buffer() failed (uv stride mismatch)\n");
480 ff_mpeg_unref_picture(s, pic);
484 if (!s->edge_emu_buffer &&
485 (ret = frame_size_alloc(s, pic->f.linesize[0])) < 0) {
486 av_log(s->avctx, AV_LOG_ERROR,
487 "get_buffer() failed to allocate context scratch buffers.\n");
488 ff_mpeg_unref_picture(s, pic);
495 void ff_free_picture_tables(Picture *pic)
499 pic->alloc_mb_width =
500 pic->alloc_mb_height = 0;
502 av_buffer_unref(&pic->mb_var_buf);
503 av_buffer_unref(&pic->mc_mb_var_buf);
504 av_buffer_unref(&pic->mb_mean_buf);
505 av_buffer_unref(&pic->mbskip_table_buf);
506 av_buffer_unref(&pic->qscale_table_buf);
507 av_buffer_unref(&pic->mb_type_buf);
509 for (i = 0; i < 2; i++) {
510 av_buffer_unref(&pic->motion_val_buf[i]);
511 av_buffer_unref(&pic->ref_index_buf[i]);
515 static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
517 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
518 const int mb_array_size = s->mb_stride * s->mb_height;
519 const int b8_array_size = s->b8_stride * s->mb_height * 2;
523 pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
524 pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride);
525 pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) *
527 if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
528 return AVERROR(ENOMEM);
531 pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
532 pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
533 pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
534 if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
535 return AVERROR(ENOMEM);
538 if (s->out_format == FMT_H263 || s->encoding || s->avctx->debug_mv) {
539 int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
540 int ref_index_size = 4 * mb_array_size;
542 for (i = 0; mv_size && i < 2; i++) {
543 pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
544 pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size);
545 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
546 return AVERROR(ENOMEM);
550 pic->alloc_mb_width = s->mb_width;
551 pic->alloc_mb_height = s->mb_height;
556 static int make_tables_writable(Picture *pic)
559 #define MAKE_WRITABLE(table) \
562 (ret = av_buffer_make_writable(&pic->table)) < 0)\
566 MAKE_WRITABLE(mb_var_buf);
567 MAKE_WRITABLE(mc_mb_var_buf);
568 MAKE_WRITABLE(mb_mean_buf);
569 MAKE_WRITABLE(mbskip_table_buf);
570 MAKE_WRITABLE(qscale_table_buf);
571 MAKE_WRITABLE(mb_type_buf);
573 for (i = 0; i < 2; i++) {
574 MAKE_WRITABLE(motion_val_buf[i]);
575 MAKE_WRITABLE(ref_index_buf[i]);
582 * Allocate a Picture.
583 * The pixels are allocated/set by calling get_buffer() if shared = 0
585 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
589 if (pic->qscale_table_buf)
590 if ( pic->alloc_mb_width != s->mb_width
591 || pic->alloc_mb_height != s->mb_height)
592 ff_free_picture_tables(pic);
595 av_assert0(pic->f.data[0]);
598 av_assert0(!pic->f.buf[0]);
600 if (alloc_frame_buffer(s, pic) < 0)
603 s->linesize = pic->f.linesize[0];
604 s->uvlinesize = pic->f.linesize[1];
607 if (!pic->qscale_table_buf)
608 ret = alloc_picture_tables(s, pic);
610 ret = make_tables_writable(pic);
615 pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
616 pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
617 pic->mb_mean = pic->mb_mean_buf->data;
620 pic->mbskip_table = pic->mbskip_table_buf->data;
621 pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1;
622 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
624 if (pic->motion_val_buf[0]) {
625 for (i = 0; i < 2; i++) {
626 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
627 pic->ref_index[i] = pic->ref_index_buf[i]->data;
633 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
634 ff_mpeg_unref_picture(s, pic);
635 ff_free_picture_tables(pic);
636 return AVERROR(ENOMEM);
640 * Deallocate a picture.
642 void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
644 int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
647 /* WM Image / Screen codecs allocate internal buffers with different
648 * dimensions / colorspaces; ignore user-defined callbacks for these. */
649 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
650 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
651 s->codec_id != AV_CODEC_ID_MSS2)
652 ff_thread_release_buffer(s->avctx, &pic->tf);
654 av_frame_unref(&pic->f);
656 av_buffer_unref(&pic->hwaccel_priv_buf);
658 if (pic->needs_realloc)
659 ff_free_picture_tables(pic);
661 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
664 static int update_picture_tables(Picture *dst, Picture *src)
668 #define UPDATE_TABLE(table)\
671 (!dst->table || dst->table->buffer != src->table->buffer)) {\
672 av_buffer_unref(&dst->table);\
673 dst->table = av_buffer_ref(src->table);\
675 ff_free_picture_tables(dst);\
676 return AVERROR(ENOMEM);\
681 UPDATE_TABLE(mb_var_buf);
682 UPDATE_TABLE(mc_mb_var_buf);
683 UPDATE_TABLE(mb_mean_buf);
684 UPDATE_TABLE(mbskip_table_buf);
685 UPDATE_TABLE(qscale_table_buf);
686 UPDATE_TABLE(mb_type_buf);
687 for (i = 0; i < 2; i++) {
688 UPDATE_TABLE(motion_val_buf[i]);
689 UPDATE_TABLE(ref_index_buf[i]);
692 dst->mb_var = src->mb_var;
693 dst->mc_mb_var = src->mc_mb_var;
694 dst->mb_mean = src->mb_mean;
695 dst->mbskip_table = src->mbskip_table;
696 dst->qscale_table = src->qscale_table;
697 dst->mb_type = src->mb_type;
698 for (i = 0; i < 2; i++) {
699 dst->motion_val[i] = src->motion_val[i];
700 dst->ref_index[i] = src->ref_index[i];
703 dst->alloc_mb_width = src->alloc_mb_width;
704 dst->alloc_mb_height = src->alloc_mb_height;
709 int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
713 av_assert0(!dst->f.buf[0]);
714 av_assert0(src->f.buf[0]);
718 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
722 ret = update_picture_tables(dst, src);
726 if (src->hwaccel_picture_private) {
727 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
728 if (!dst->hwaccel_priv_buf)
730 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
733 dst->field_picture = src->field_picture;
734 dst->mb_var_sum = src->mb_var_sum;
735 dst->mc_mb_var_sum = src->mc_mb_var_sum;
736 dst->b_frame_score = src->b_frame_score;
737 dst->needs_realloc = src->needs_realloc;
738 dst->reference = src->reference;
739 dst->shared = src->shared;
743 ff_mpeg_unref_picture(s, dst);
747 static void exchange_uv(MpegEncContext *s)
752 s->pblocks[4] = s->pblocks[5];
756 static int init_duplicate_context(MpegEncContext *s)
758 int y_size = s->b8_stride * (2 * s->mb_height + 1);
759 int c_size = s->mb_stride * (s->mb_height + 1);
760 int yc_size = y_size + 2 * c_size;
763 if (s->mb_height & 1)
764 yc_size += 2*s->b8_stride + 2*s->mb_stride;
771 s->obmc_scratchpad = NULL;
774 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
775 ME_MAP_SIZE * sizeof(uint32_t), fail)
776 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
777 ME_MAP_SIZE * sizeof(uint32_t), fail)
778 if (s->avctx->noise_reduction) {
779 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
780 2 * 64 * sizeof(int), fail)
783 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
784 s->block = s->blocks[0];
786 for (i = 0; i < 12; i++) {
787 s->pblocks[i] = &s->block[i];
789 if (s->avctx->codec_tag == AV_RL32("VCR2"))
792 if (s->out_format == FMT_H263) {
794 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
795 yc_size * sizeof(int16_t) * 16, fail);
796 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
797 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
798 s->ac_val[2] = s->ac_val[1] + c_size;
803 return -1; // free() through ff_MPV_common_end()
806 static void free_duplicate_context(MpegEncContext *s)
811 av_freep(&s->edge_emu_buffer);
812 av_freep(&s->me.scratchpad);
816 s->obmc_scratchpad = NULL;
818 av_freep(&s->dct_error_sum);
819 av_freep(&s->me.map);
820 av_freep(&s->me.score_map);
821 av_freep(&s->blocks);
822 av_freep(&s->ac_val_base);
826 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
828 #define COPY(a) bak->a = src->a
829 COPY(edge_emu_buffer);
834 COPY(obmc_scratchpad);
841 COPY(me.map_generation);
853 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
857 // FIXME copy only needed parts
859 backup_duplicate_context(&bak, dst);
860 memcpy(dst, src, sizeof(MpegEncContext));
861 backup_duplicate_context(dst, &bak);
862 for (i = 0; i < 12; i++) {
863 dst->pblocks[i] = &dst->block[i];
865 if (dst->avctx->codec_tag == AV_RL32("VCR2"))
867 if (!dst->edge_emu_buffer &&
868 (ret = frame_size_alloc(dst, dst->linesize)) < 0) {
869 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
870 "scratch buffers.\n");
873 // STOP_TIMER("update_duplicate_context")
874 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
878 int ff_mpeg_update_thread_context(AVCodecContext *dst,
879 const AVCodecContext *src)
882 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
889 // FIXME can parameters change on I-frames?
890 // in that case dst may need a reinit
891 if (!s->context_initialized) {
892 memcpy(s, s1, sizeof(MpegEncContext));
895 s->bitstream_buffer = NULL;
896 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
898 if (s1->context_initialized){
899 // s->picture_range_start += MAX_PICTURE_COUNT;
900 // s->picture_range_end += MAX_PICTURE_COUNT;
901 if((ret = ff_MPV_common_init(s)) < 0){
902 memset(s, 0, sizeof(MpegEncContext));
909 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
910 s->context_reinit = 0;
911 s->height = s1->height;
912 s->width = s1->width;
913 if ((ret = ff_MPV_common_frame_size_change(s)) < 0)
917 s->avctx->coded_height = s1->avctx->coded_height;
918 s->avctx->coded_width = s1->avctx->coded_width;
919 s->avctx->width = s1->avctx->width;
920 s->avctx->height = s1->avctx->height;
922 s->coded_picture_number = s1->coded_picture_number;
923 s->picture_number = s1->picture_number;
925 av_assert0(!s->picture || s->picture != s1->picture);
927 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
928 ff_mpeg_unref_picture(s, &s->picture[i]);
929 if (s1->picture[i].f.buf[0] &&
930 (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0)
934 #define UPDATE_PICTURE(pic)\
936 ff_mpeg_unref_picture(s, &s->pic);\
937 if (s1->pic.f.buf[0])\
938 ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\
940 ret = update_picture_tables(&s->pic, &s1->pic);\
945 UPDATE_PICTURE(current_picture);
946 UPDATE_PICTURE(last_picture);
947 UPDATE_PICTURE(next_picture);
949 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
950 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
951 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
953 // Error/bug resilience
954 s->next_p_frame_damaged = s1->next_p_frame_damaged;
955 s->workaround_bugs = s1->workaround_bugs;
956 s->padding_bug_score = s1->padding_bug_score;
959 memcpy(&s->last_time_base, &s1->last_time_base,
960 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
961 (char *) &s1->last_time_base);
964 s->max_b_frames = s1->max_b_frames;
965 s->low_delay = s1->low_delay;
966 s->droppable = s1->droppable;
968 // DivX handling (doesn't work)
969 s->divx_packed = s1->divx_packed;
971 if (s1->bitstream_buffer) {
972 if (s1->bitstream_buffer_size +
973 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
974 av_fast_malloc(&s->bitstream_buffer,
975 &s->allocated_bitstream_buffer_size,
976 s1->allocated_bitstream_buffer_size);
977 s->bitstream_buffer_size = s1->bitstream_buffer_size;
978 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
979 s1->bitstream_buffer_size);
980 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
981 FF_INPUT_BUFFER_PADDING_SIZE);
984 // linesize dependend scratch buffer allocation
985 if (!s->edge_emu_buffer)
987 if (frame_size_alloc(s, s1->linesize) < 0) {
988 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
989 "scratch buffers.\n");
990 return AVERROR(ENOMEM);
993 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
994 "be allocated due to unknown size.\n");
997 // MPEG2/interlacing info
998 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
999 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
1001 if (!s1->first_field) {
1002 s->last_pict_type = s1->pict_type;
1003 if (s1->current_picture_ptr)
1004 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality;
1011 * Set the given MpegEncContext to common defaults
1012 * (same for encoding and decoding).
1013 * The changed fields will not depend upon the
1014 * prior state of the MpegEncContext.
1016 void ff_MPV_common_defaults(MpegEncContext *s)
1018 s->y_dc_scale_table =
1019 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
1020 s->chroma_qscale_table = ff_default_chroma_qscale_table;
1021 s->progressive_frame = 1;
1022 s->progressive_sequence = 1;
1023 s->picture_structure = PICT_FRAME;
1025 s->coded_picture_number = 0;
1026 s->picture_number = 0;
1031 s->slice_context_count = 1;
1035 * Set the given MpegEncContext to defaults for decoding.
1036 * the changed fields will not depend upon
1037 * the prior state of the MpegEncContext.
1039 void ff_MPV_decode_defaults(MpegEncContext *s)
1041 ff_MPV_common_defaults(s);
1044 static int init_er(MpegEncContext *s)
1046 ERContext *er = &s->er;
1047 int mb_array_size = s->mb_height * s->mb_stride;
1050 er->avctx = s->avctx;
1053 er->mb_index2xy = s->mb_index2xy;
1054 er->mb_num = s->mb_num;
1055 er->mb_width = s->mb_width;
1056 er->mb_height = s->mb_height;
1057 er->mb_stride = s->mb_stride;
1058 er->b8_stride = s->b8_stride;
1060 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
1061 er->error_status_table = av_mallocz(mb_array_size);
1062 if (!er->er_temp_buffer || !er->error_status_table)
1065 er->mbskip_table = s->mbskip_table;
1066 er->mbintra_table = s->mbintra_table;
1068 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
1069 er->dc_val[i] = s->dc_val[i];
1071 er->decode_mb = mpeg_er_decode_mb;
1076 av_freep(&er->er_temp_buffer);
1077 av_freep(&er->error_status_table);
1078 return AVERROR(ENOMEM);
1082 * Initialize and allocates MpegEncContext fields dependent on the resolution.
1084 static int init_context_frame(MpegEncContext *s)
1086 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
1088 s->mb_width = (s->width + 15) / 16;
1089 s->mb_stride = s->mb_width + 1;
1090 s->b8_stride = s->mb_width * 2 + 1;
1091 s->b4_stride = s->mb_width * 4 + 1;
1092 mb_array_size = s->mb_height * s->mb_stride;
1093 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
1095 /* set default edge pos, will be overriden
1096 * in decode_header if needed */
1097 s->h_edge_pos = s->mb_width * 16;
1098 s->v_edge_pos = s->mb_height * 16;
1100 s->mb_num = s->mb_width * s->mb_height;
1105 s->block_wrap[3] = s->b8_stride;
1107 s->block_wrap[5] = s->mb_stride;
1109 y_size = s->b8_stride * (2 * s->mb_height + 1);
1110 c_size = s->mb_stride * (s->mb_height + 1);
1111 yc_size = y_size + 2 * c_size;
1113 if (s->mb_height & 1)
1114 yc_size += 2*s->b8_stride + 2*s->mb_stride;
1116 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
1117 for (y = 0; y < s->mb_height; y++)
1118 for (x = 0; x < s->mb_width; x++)
1119 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
1121 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
1124 /* Allocate MV tables */
1125 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1126 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1127 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1128 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1129 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1130 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1131 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
1132 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
1133 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
1134 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
1135 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
1136 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
1138 /* Allocate MB type table */
1139 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
1141 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
1143 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
1144 mb_array_size * sizeof(float), fail);
1145 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
1146 mb_array_size * sizeof(float), fail);
1150 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
1151 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
1152 /* interlaced direct mode decoding tables */
1153 for (i = 0; i < 2; i++) {
1155 for (j = 0; j < 2; j++) {
1156 for (k = 0; k < 2; k++) {
1157 FF_ALLOCZ_OR_GOTO(s->avctx,
1158 s->b_field_mv_table_base[i][j][k],
1159 mv_table_size * 2 * sizeof(int16_t),
1161 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
1164 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
1165 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
1166 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
1168 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
1171 if (s->out_format == FMT_H263) {
1173 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
1174 s->coded_block = s->coded_block_base + s->b8_stride + 1;
1176 /* cbp, ac_pred, pred_dir */
1177 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
1178 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
1181 if (s->h263_pred || s->h263_plus || !s->encoding) {
1183 // MN: we need these for error resilience of intra-frames
1184 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
1185 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
1186 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
1187 s->dc_val[2] = s->dc_val[1] + c_size;
1188 for (i = 0; i < yc_size; i++)
1189 s->dc_val_base[i] = 1024;
1192 /* which mb is a intra block */
1193 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
1194 memset(s->mbintra_table, 1, mb_array_size);
1196 /* init macroblock skip table */
1197 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
1198 // Note the + 1 is for a quicker mpeg4 slice_end detection
1202 return AVERROR(ENOMEM);
1206 * init common structure for both encoder and decoder.
1207 * this assumes that some variables like width/height are already set
1209 av_cold int ff_MPV_common_init(MpegEncContext *s)
1212 int nb_slices = (HAVE_THREADS &&
1213 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
1214 s->avctx->thread_count : 1;
1216 if (s->encoding && s->avctx->slices)
1217 nb_slices = s->avctx->slices;
1219 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1220 s->mb_height = (s->height + 31) / 32 * 2;
1222 s->mb_height = (s->height + 15) / 16;
1224 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1225 av_log(s->avctx, AV_LOG_ERROR,
1226 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1230 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1233 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1235 max_slices = MAX_THREADS;
1236 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1237 " reducing to %d\n", nb_slices, max_slices);
1238 nb_slices = max_slices;
1241 if ((s->width || s->height) &&
1242 av_image_check_size(s->width, s->height, 0, s->avctx))
1245 ff_dct_common_init(s);
1247 s->flags = s->avctx->flags;
1248 s->flags2 = s->avctx->flags2;
1250 /* set chroma shifts */
1251 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
1253 &s->chroma_y_shift);
1255 /* convert fourcc to upper case */
1256 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
1258 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
1260 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1261 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1262 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1263 av_frame_unref(&s->picture[i].f);
1265 memset(&s->next_picture, 0, sizeof(s->next_picture));
1266 memset(&s->last_picture, 0, sizeof(s->last_picture));
1267 memset(&s->current_picture, 0, sizeof(s->current_picture));
1268 av_frame_unref(&s->next_picture.f);
1269 av_frame_unref(&s->last_picture.f);
1270 av_frame_unref(&s->current_picture.f);
1272 if (init_context_frame(s))
1275 s->parse_context.state = -1;
1277 s->context_initialized = 1;
1278 s->thread_context[0] = s;
1280 // if (s->width && s->height) {
1281 if (nb_slices > 1) {
1282 for (i = 1; i < nb_slices; i++) {
1283 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1284 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1287 for (i = 0; i < nb_slices; i++) {
1288 if (init_duplicate_context(s->thread_context[i]) < 0)
1290 s->thread_context[i]->start_mb_y =
1291 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1292 s->thread_context[i]->end_mb_y =
1293 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1296 if (init_duplicate_context(s) < 0)
1299 s->end_mb_y = s->mb_height;
1301 s->slice_context_count = nb_slices;
1306 ff_MPV_common_end(s);
1311 * Frees and resets MpegEncContext fields depending on the resolution.
1312 * Is used during resolution changes to avoid a full reinitialization of the
1315 static int free_context_frame(MpegEncContext *s)
1319 av_freep(&s->mb_type);
1320 av_freep(&s->p_mv_table_base);
1321 av_freep(&s->b_forw_mv_table_base);
1322 av_freep(&s->b_back_mv_table_base);
1323 av_freep(&s->b_bidir_forw_mv_table_base);
1324 av_freep(&s->b_bidir_back_mv_table_base);
1325 av_freep(&s->b_direct_mv_table_base);
1326 s->p_mv_table = NULL;
1327 s->b_forw_mv_table = NULL;
1328 s->b_back_mv_table = NULL;
1329 s->b_bidir_forw_mv_table = NULL;
1330 s->b_bidir_back_mv_table = NULL;
1331 s->b_direct_mv_table = NULL;
1332 for (i = 0; i < 2; i++) {
1333 for (j = 0; j < 2; j++) {
1334 for (k = 0; k < 2; k++) {
1335 av_freep(&s->b_field_mv_table_base[i][j][k]);
1336 s->b_field_mv_table[i][j][k] = NULL;
1338 av_freep(&s->b_field_select_table[i][j]);
1339 av_freep(&s->p_field_mv_table_base[i][j]);
1340 s->p_field_mv_table[i][j] = NULL;
1342 av_freep(&s->p_field_select_table[i]);
1345 av_freep(&s->dc_val_base);
1346 av_freep(&s->coded_block_base);
1347 av_freep(&s->mbintra_table);
1348 av_freep(&s->cbp_table);
1349 av_freep(&s->pred_dir_table);
1351 av_freep(&s->mbskip_table);
1353 av_freep(&s->er.error_status_table);
1354 av_freep(&s->er.er_temp_buffer);
1355 av_freep(&s->mb_index2xy);
1356 av_freep(&s->lambda_table);
1358 av_freep(&s->cplx_tab);
1359 av_freep(&s->bits_tab);
1361 s->linesize = s->uvlinesize = 0;
1366 int ff_MPV_common_frame_size_change(MpegEncContext *s)
1370 if (s->slice_context_count > 1) {
1371 for (i = 0; i < s->slice_context_count; i++) {
1372 free_duplicate_context(s->thread_context[i]);
1374 for (i = 1; i < s->slice_context_count; i++) {
1375 av_freep(&s->thread_context[i]);
1378 free_duplicate_context(s);
1380 if ((err = free_context_frame(s)) < 0)
1384 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1385 s->picture[i].needs_realloc = 1;
1388 s->last_picture_ptr =
1389 s->next_picture_ptr =
1390 s->current_picture_ptr = NULL;
1393 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1394 s->mb_height = (s->height + 31) / 32 * 2;
1396 s->mb_height = (s->height + 15) / 16;
1398 if ((s->width || s->height) &&
1399 av_image_check_size(s->width, s->height, 0, s->avctx))
1400 return AVERROR_INVALIDDATA;
1402 if ((err = init_context_frame(s)))
1405 s->thread_context[0] = s;
1407 if (s->width && s->height) {
1408 int nb_slices = s->slice_context_count;
1409 if (nb_slices > 1) {
1410 for (i = 1; i < nb_slices; i++) {
1411 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1412 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1415 for (i = 0; i < nb_slices; i++) {
1416 if (init_duplicate_context(s->thread_context[i]) < 0)
1418 s->thread_context[i]->start_mb_y =
1419 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1420 s->thread_context[i]->end_mb_y =
1421 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1424 err = init_duplicate_context(s);
1428 s->end_mb_y = s->mb_height;
1430 s->slice_context_count = nb_slices;
1435 ff_MPV_common_end(s);
1439 /* init common structure for both encoder and decoder */
1440 void ff_MPV_common_end(MpegEncContext *s)
1444 if (s->slice_context_count > 1) {
1445 for (i = 0; i < s->slice_context_count; i++) {
1446 free_duplicate_context(s->thread_context[i]);
1448 for (i = 1; i < s->slice_context_count; i++) {
1449 av_freep(&s->thread_context[i]);
1451 s->slice_context_count = 1;
1452 } else free_duplicate_context(s);
1454 av_freep(&s->parse_context.buffer);
1455 s->parse_context.buffer_size = 0;
1457 av_freep(&s->bitstream_buffer);
1458 s->allocated_bitstream_buffer_size = 0;
1461 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1462 ff_free_picture_tables(&s->picture[i]);
1463 ff_mpeg_unref_picture(s, &s->picture[i]);
1466 av_freep(&s->picture);
1467 ff_free_picture_tables(&s->last_picture);
1468 ff_mpeg_unref_picture(s, &s->last_picture);
1469 ff_free_picture_tables(&s->current_picture);
1470 ff_mpeg_unref_picture(s, &s->current_picture);
1471 ff_free_picture_tables(&s->next_picture);
1472 ff_mpeg_unref_picture(s, &s->next_picture);
1474 free_context_frame(s);
1476 s->context_initialized = 0;
1477 s->last_picture_ptr =
1478 s->next_picture_ptr =
1479 s->current_picture_ptr = NULL;
1480 s->linesize = s->uvlinesize = 0;
1483 av_cold void ff_init_rl(RLTable *rl,
1484 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1486 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1487 uint8_t index_run[MAX_RUN + 1];
1488 int last, run, level, start, end, i;
1490 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1491 if (static_store && rl->max_level[0])
1494 /* compute max_level[], max_run[] and index_run[] */
1495 for (last = 0; last < 2; last++) {
1504 memset(max_level, 0, MAX_RUN + 1);
1505 memset(max_run, 0, MAX_LEVEL + 1);
1506 memset(index_run, rl->n, MAX_RUN + 1);
1507 for (i = start; i < end; i++) {
1508 run = rl->table_run[i];
1509 level = rl->table_level[i];
1510 if (index_run[run] == rl->n)
1512 if (level > max_level[run])
1513 max_level[run] = level;
1514 if (run > max_run[level])
1515 max_run[level] = run;
1518 rl->max_level[last] = static_store[last];
1520 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1521 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1523 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1525 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1526 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1528 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1530 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1531 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1535 av_cold void ff_init_vlc_rl(RLTable *rl)
1539 for (q = 0; q < 32; q++) {
1541 int qadd = (q - 1) | 1;
1547 for (i = 0; i < rl->vlc.table_size; i++) {
1548 int code = rl->vlc.table[i][0];
1549 int len = rl->vlc.table[i][1];
1552 if (len == 0) { // illegal code
1555 } else if (len < 0) { // more bits needed
1559 if (code == rl->n) { // esc
1563 run = rl->table_run[code] + 1;
1564 level = rl->table_level[code] * qmul + qadd;
1565 if (code >= rl->last) run += 192;
1568 rl->rl_vlc[q][i].len = len;
1569 rl->rl_vlc[q][i].level = level;
1570 rl->rl_vlc[q][i].run = run;
1575 static void release_unused_pictures(MpegEncContext *s)
1579 /* release non reference frames */
1580 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1581 if (!s->picture[i].reference)
1582 ff_mpeg_unref_picture(s, &s->picture[i]);
1586 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1588 if (pic == s->last_picture_ptr)
1590 if (pic->f.buf[0] == NULL)
1592 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1597 static int find_unused_picture(MpegEncContext *s, int shared)
1602 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1603 if (s->picture[i].f.buf[0] == NULL && &s->picture[i] != s->last_picture_ptr)
1607 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1608 if (pic_is_unused(s, &s->picture[i]))
1613 av_log(s->avctx, AV_LOG_FATAL,
1614 "Internal error, picture buffer overflow\n");
1615 /* We could return -1, but the codec would crash trying to draw into a
1616 * non-existing frame anyway. This is safer than waiting for a random crash.
1617 * Also the return of this is never useful, an encoder must only allocate
1618 * as much as allowed in the specification. This has no relationship to how
1619 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1620 * enough for such valid streams).
1621 * Plus, a decoder has to check stream validity and remove frames if too
1622 * many reference frames are around. Waiting for "OOM" is not correct at
1623 * all. Similarly, missing reference frames have to be replaced by
1624 * interpolated/MC frames, anything else is a bug in the codec ...
1630 int ff_find_unused_picture(MpegEncContext *s, int shared)
1632 int ret = find_unused_picture(s, shared);
1634 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1635 if (s->picture[ret].needs_realloc) {
1636 s->picture[ret].needs_realloc = 0;
1637 ff_free_picture_tables(&s->picture[ret]);
1638 ff_mpeg_unref_picture(s, &s->picture[ret]);
1645 * generic function called after decoding
1646 * the header and before a frame is decoded.
1648 int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1654 if (!ff_thread_can_start_frame(avctx)) {
1655 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1659 /* mark & release old frames */
1660 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1661 s->last_picture_ptr != s->next_picture_ptr &&
1662 s->last_picture_ptr->f.buf[0]) {
1663 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1666 /* release forgotten pictures */
1667 /* if (mpeg124/h263) */
1668 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1669 if (&s->picture[i] != s->last_picture_ptr &&
1670 &s->picture[i] != s->next_picture_ptr &&
1671 s->picture[i].reference && !s->picture[i].needs_realloc) {
1672 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1673 av_log(avctx, AV_LOG_ERROR,
1674 "releasing zombie picture\n");
1675 ff_mpeg_unref_picture(s, &s->picture[i]);
1679 ff_mpeg_unref_picture(s, &s->current_picture);
1681 release_unused_pictures(s);
1683 if (s->current_picture_ptr &&
1684 s->current_picture_ptr->f.buf[0] == NULL) {
1685 // we already have a unused image
1686 // (maybe it was set before reading the header)
1687 pic = s->current_picture_ptr;
1689 i = ff_find_unused_picture(s, 0);
1691 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1694 pic = &s->picture[i];
1698 if (!s->droppable) {
1699 if (s->pict_type != AV_PICTURE_TYPE_B)
1703 pic->f.coded_picture_number = s->coded_picture_number++;
1705 if (ff_alloc_picture(s, pic, 0) < 0)
1708 s->current_picture_ptr = pic;
1709 // FIXME use only the vars from current_pic
1710 s->current_picture_ptr->f.top_field_first = s->top_field_first;
1711 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1712 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1713 if (s->picture_structure != PICT_FRAME)
1714 s->current_picture_ptr->f.top_field_first =
1715 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1717 s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame &&
1718 !s->progressive_sequence;
1719 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1721 s->current_picture_ptr->f.pict_type = s->pict_type;
1722 // if (s->flags && CODEC_FLAG_QSCALE)
1723 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1724 s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1726 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1727 s->current_picture_ptr)) < 0)
1730 if (s->pict_type != AV_PICTURE_TYPE_B) {
1731 s->last_picture_ptr = s->next_picture_ptr;
1733 s->next_picture_ptr = s->current_picture_ptr;
1735 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1736 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1737 s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL,
1738 s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL,
1739 s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL,
1740 s->pict_type, s->droppable);
1742 if ((s->last_picture_ptr == NULL ||
1743 s->last_picture_ptr->f.buf[0] == NULL) &&
1744 (s->pict_type != AV_PICTURE_TYPE_I ||
1745 s->picture_structure != PICT_FRAME)) {
1746 int h_chroma_shift, v_chroma_shift;
1747 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1748 &h_chroma_shift, &v_chroma_shift);
1749 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f.buf[0])
1750 av_log(avctx, AV_LOG_DEBUG,
1751 "allocating dummy last picture for B frame\n");
1752 else if (s->pict_type != AV_PICTURE_TYPE_I)
1753 av_log(avctx, AV_LOG_ERROR,
1754 "warning: first frame is no keyframe\n");
1755 else if (s->picture_structure != PICT_FRAME)
1756 av_log(avctx, AV_LOG_DEBUG,
1757 "allocate dummy last picture for field based first keyframe\n");
1759 /* Allocate a dummy frame */
1760 i = ff_find_unused_picture(s, 0);
1762 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1765 s->last_picture_ptr = &s->picture[i];
1767 s->last_picture_ptr->reference = 3;
1768 s->last_picture_ptr->f.key_frame = 0;
1769 s->last_picture_ptr->f.pict_type = AV_PICTURE_TYPE_P;
1771 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1772 s->last_picture_ptr = NULL;
1776 memset(s->last_picture_ptr->f.data[0], 0x80,
1777 avctx->height * s->last_picture_ptr->f.linesize[0]);
1778 memset(s->last_picture_ptr->f.data[1], 0x80,
1779 (avctx->height >> v_chroma_shift) *
1780 s->last_picture_ptr->f.linesize[1]);
1781 memset(s->last_picture_ptr->f.data[2], 0x80,
1782 (avctx->height >> v_chroma_shift) *
1783 s->last_picture_ptr->f.linesize[2]);
1785 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1786 for(i=0; i<avctx->height; i++)
1787 memset(s->last_picture_ptr->f.data[0] + s->last_picture_ptr->f.linesize[0]*i, 16, avctx->width);
1790 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1791 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1793 if ((s->next_picture_ptr == NULL ||
1794 s->next_picture_ptr->f.buf[0] == NULL) &&
1795 s->pict_type == AV_PICTURE_TYPE_B) {
1796 /* Allocate a dummy frame */
1797 i = ff_find_unused_picture(s, 0);
1799 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1802 s->next_picture_ptr = &s->picture[i];
1804 s->next_picture_ptr->reference = 3;
1805 s->next_picture_ptr->f.key_frame = 0;
1806 s->next_picture_ptr->f.pict_type = AV_PICTURE_TYPE_P;
1808 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1809 s->next_picture_ptr = NULL;
1812 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1813 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1816 #if 0 // BUFREF-FIXME
1817 memset(s->last_picture.f.data, 0, sizeof(s->last_picture.f.data));
1818 memset(s->next_picture.f.data, 0, sizeof(s->next_picture.f.data));
1820 if (s->last_picture_ptr) {
1821 ff_mpeg_unref_picture(s, &s->last_picture);
1822 if (s->last_picture_ptr->f.buf[0] &&
1823 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1824 s->last_picture_ptr)) < 0)
1827 if (s->next_picture_ptr) {
1828 ff_mpeg_unref_picture(s, &s->next_picture);
1829 if (s->next_picture_ptr->f.buf[0] &&
1830 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1831 s->next_picture_ptr)) < 0)
1835 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1836 s->last_picture_ptr->f.buf[0]));
1838 if (s->picture_structure!= PICT_FRAME) {
1840 for (i = 0; i < 4; i++) {
1841 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1842 s->current_picture.f.data[i] +=
1843 s->current_picture.f.linesize[i];
1845 s->current_picture.f.linesize[i] *= 2;
1846 s->last_picture.f.linesize[i] *= 2;
1847 s->next_picture.f.linesize[i] *= 2;
1851 s->err_recognition = avctx->err_recognition;
1853 /* set dequantizer, we can't do it during init as
1854 * it might change for mpeg4 and we can't do it in the header
1855 * decode as init is not called for mpeg4 there yet */
1856 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1857 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1858 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1859 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1860 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1861 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1863 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1864 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1870 /* called after a frame has been decoded. */
1871 void ff_MPV_frame_end(MpegEncContext *s)
1875 if (s->current_picture.reference)
1876 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1880 * Draw a line from (ex, ey) -> (sx, sy).
1881 * @param w width of the image
1882 * @param h height of the image
1883 * @param stride stride/linesize of the image
1884 * @param color color of the arrow
1886 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1887 int w, int h, int stride, int color)
1891 sx = av_clip(sx, 0, w - 1);
1892 sy = av_clip(sy, 0, h - 1);
1893 ex = av_clip(ex, 0, w - 1);
1894 ey = av_clip(ey, 0, h - 1);
1896 buf[sy * stride + sx] += color;
1898 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1900 FFSWAP(int, sx, ex);
1901 FFSWAP(int, sy, ey);
1903 buf += sx + sy * stride;
1905 f = ((ey - sy) << 16) / ex;
1906 for (x = 0; x <= ex; x++) {
1908 fr = (x * f) & 0xFFFF;
1909 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1910 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1914 FFSWAP(int, sx, ex);
1915 FFSWAP(int, sy, ey);
1917 buf += sx + sy * stride;
1920 f = ((ex - sx) << 16) / ey;
1923 for(y= 0; y <= ey; y++){
1925 fr = (y*f) & 0xFFFF;
1926 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1927 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1933 * Draw an arrow from (ex, ey) -> (sx, sy).
1934 * @param w width of the image
1935 * @param h height of the image
1936 * @param stride stride/linesize of the image
1937 * @param color color of the arrow
1939 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1940 int ey, int w, int h, int stride, int color)
1944 sx = av_clip(sx, -100, w + 100);
1945 sy = av_clip(sy, -100, h + 100);
1946 ex = av_clip(ex, -100, w + 100);
1947 ey = av_clip(ey, -100, h + 100);
1952 if (dx * dx + dy * dy > 3 * 3) {
1955 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1957 // FIXME subpixel accuracy
1958 rx = ROUNDED_DIV(rx * 3 << 4, length);
1959 ry = ROUNDED_DIV(ry * 3 << 4, length);
1961 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1962 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1964 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1968 * Print debugging info for the given picture.
1970 void ff_print_debug_info2(AVCodecContext *avctx, Picture *p, AVFrame *pict, uint8_t *mbskip_table,
1972 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1974 if (avctx->hwaccel || !p || !p->mb_type
1975 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1979 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1982 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1983 av_get_picture_type_char(pict->pict_type));
1984 for (y = 0; y < mb_height; y++) {
1985 for (x = 0; x < mb_width; x++) {
1986 if (avctx->debug & FF_DEBUG_SKIP) {
1987 int count = mbskip_table[x + y * mb_stride];
1990 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1992 if (avctx->debug & FF_DEBUG_QP) {
1993 av_log(avctx, AV_LOG_DEBUG, "%2d",
1994 p->qscale_table[x + y * mb_stride]);
1996 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1997 int mb_type = p->mb_type[x + y * mb_stride];
1998 // Type & MV direction
1999 if (IS_PCM(mb_type))
2000 av_log(avctx, AV_LOG_DEBUG, "P");
2001 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
2002 av_log(avctx, AV_LOG_DEBUG, "A");
2003 else if (IS_INTRA4x4(mb_type))
2004 av_log(avctx, AV_LOG_DEBUG, "i");
2005 else if (IS_INTRA16x16(mb_type))
2006 av_log(avctx, AV_LOG_DEBUG, "I");
2007 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
2008 av_log(avctx, AV_LOG_DEBUG, "d");
2009 else if (IS_DIRECT(mb_type))
2010 av_log(avctx, AV_LOG_DEBUG, "D");
2011 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
2012 av_log(avctx, AV_LOG_DEBUG, "g");
2013 else if (IS_GMC(mb_type))
2014 av_log(avctx, AV_LOG_DEBUG, "G");
2015 else if (IS_SKIP(mb_type))
2016 av_log(avctx, AV_LOG_DEBUG, "S");
2017 else if (!USES_LIST(mb_type, 1))
2018 av_log(avctx, AV_LOG_DEBUG, ">");
2019 else if (!USES_LIST(mb_type, 0))
2020 av_log(avctx, AV_LOG_DEBUG, "<");
2022 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2023 av_log(avctx, AV_LOG_DEBUG, "X");
2027 if (IS_8X8(mb_type))
2028 av_log(avctx, AV_LOG_DEBUG, "+");
2029 else if (IS_16X8(mb_type))
2030 av_log(avctx, AV_LOG_DEBUG, "-");
2031 else if (IS_8X16(mb_type))
2032 av_log(avctx, AV_LOG_DEBUG, "|");
2033 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
2034 av_log(avctx, AV_LOG_DEBUG, " ");
2036 av_log(avctx, AV_LOG_DEBUG, "?");
2039 if (IS_INTERLACED(mb_type))
2040 av_log(avctx, AV_LOG_DEBUG, "=");
2042 av_log(avctx, AV_LOG_DEBUG, " ");
2045 av_log(avctx, AV_LOG_DEBUG, "\n");
2049 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
2050 (avctx->debug_mv)) {
2051 const int shift = 1 + quarter_sample;
2055 int h_chroma_shift, v_chroma_shift, block_height;
2056 const int width = avctx->width;
2057 const int height = avctx->height;
2058 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2059 const int mv_stride = (mb_width << mv_sample_log2) +
2060 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2062 *low_delay = 0; // needed to see the vectors without trashing the buffers
2064 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
2066 av_frame_make_writable(pict);
2068 pict->opaque = NULL;
2069 ptr = pict->data[0];
2070 block_height = 16 >> v_chroma_shift;
2072 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2074 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2075 const int mb_index = mb_x + mb_y * mb_stride;
2076 if ((avctx->debug_mv) && p->motion_val[0]) {
2078 for (type = 0; type < 3; type++) {
2082 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
2083 (pict->pict_type!= AV_PICTURE_TYPE_P))
2088 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
2089 (pict->pict_type!= AV_PICTURE_TYPE_B))
2094 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2095 (pict->pict_type!= AV_PICTURE_TYPE_B))
2100 if (!USES_LIST(p->mb_type[mb_index], direction))
2103 if (IS_8X8(p->mb_type[mb_index])) {
2105 for (i = 0; i < 4; i++) {
2106 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2107 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2108 int xy = (mb_x * 2 + (i & 1) +
2109 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2110 int mx = (p->motion_val[direction][xy][0] >> shift) + sx;
2111 int my = (p->motion_val[direction][xy][1] >> shift) + sy;
2112 draw_arrow(ptr, sx, sy, mx, my, width,
2113 height, pict->linesize[0], 100);
2115 } else if (IS_16X8(p->mb_type[mb_index])) {
2117 for (i = 0; i < 2; i++) {
2118 int sx = mb_x * 16 + 8;
2119 int sy = mb_y * 16 + 4 + 8 * i;
2120 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2121 int mx = (p->motion_val[direction][xy][0] >> shift);
2122 int my = (p->motion_val[direction][xy][1] >> shift);
2124 if (IS_INTERLACED(p->mb_type[mb_index]))
2127 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2128 height, pict->linesize[0], 100);
2130 } else if (IS_8X16(p->mb_type[mb_index])) {
2132 for (i = 0; i < 2; i++) {
2133 int sx = mb_x * 16 + 4 + 8 * i;
2134 int sy = mb_y * 16 + 8;
2135 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2136 int mx = p->motion_val[direction][xy][0] >> shift;
2137 int my = p->motion_val[direction][xy][1] >> shift;
2139 if (IS_INTERLACED(p->mb_type[mb_index]))
2142 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2143 height, pict->linesize[0], 100);
2146 int sx= mb_x * 16 + 8;
2147 int sy= mb_y * 16 + 8;
2148 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2149 int mx= (p->motion_val[direction][xy][0]>>shift) + sx;
2150 int my= (p->motion_val[direction][xy][1]>>shift) + sy;
2151 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100);
2155 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2156 uint64_t c = (p->qscale_table[mb_index] * 128 / 31) *
2157 0x0101010101010101ULL;
2159 for (y = 0; y < block_height; y++) {
2160 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2161 (block_height * mb_y + y) *
2162 pict->linesize[1]) = c;
2163 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2164 (block_height * mb_y + y) *
2165 pict->linesize[2]) = c;
2168 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2170 int mb_type = p->mb_type[mb_index];
2173 #define COLOR(theta, r) \
2174 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2175 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2179 if (IS_PCM(mb_type)) {
2181 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2182 IS_INTRA16x16(mb_type)) {
2184 } else if (IS_INTRA4x4(mb_type)) {
2186 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2188 } else if (IS_DIRECT(mb_type)) {
2190 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2192 } else if (IS_GMC(mb_type)) {
2194 } else if (IS_SKIP(mb_type)) {
2196 } else if (!USES_LIST(mb_type, 1)) {
2198 } else if (!USES_LIST(mb_type, 0)) {
2201 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2205 u *= 0x0101010101010101ULL;
2206 v *= 0x0101010101010101ULL;
2207 for (y = 0; y < block_height; y++) {
2208 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2209 (block_height * mb_y + y) * pict->linesize[1]) = u;
2210 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2211 (block_height * mb_y + y) * pict->linesize[2]) = v;
2215 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2216 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2217 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2218 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2219 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2221 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2222 for (y = 0; y < 16; y++)
2223 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2224 pict->linesize[0]] ^= 0x80;
2226 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2227 int dm = 1 << (mv_sample_log2 - 2);
2228 for (i = 0; i < 4; i++) {
2229 int sx = mb_x * 16 + 8 * (i & 1);
2230 int sy = mb_y * 16 + 8 * (i >> 1);
2231 int xy = (mb_x * 2 + (i & 1) +
2232 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2234 int32_t *mv = (int32_t *) &p->motion_val[0][xy];
2235 if (mv[0] != mv[dm] ||
2236 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2237 for (y = 0; y < 8; y++)
2238 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2239 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2240 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2241 pict->linesize[0]) ^= 0x8080808080808080ULL;
2245 if (IS_INTERLACED(mb_type) &&
2246 avctx->codec->id == AV_CODEC_ID_H264) {
2250 mbskip_table[mb_index] = 0;
2256 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2258 ff_print_debug_info2(s->avctx, p, pict, s->mbskip_table, &s->low_delay,
2259 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2262 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2264 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2265 int offset = 2*s->mb_stride + 1;
2267 return AVERROR(ENOMEM);
2268 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2269 ref->size -= offset;
2270 ref->data += offset;
2271 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2274 static inline int hpel_motion_lowres(MpegEncContext *s,
2275 uint8_t *dest, uint8_t *src,
2276 int field_based, int field_select,
2277 int src_x, int src_y,
2278 int width, int height, ptrdiff_t stride,
2279 int h_edge_pos, int v_edge_pos,
2280 int w, int h, h264_chroma_mc_func *pix_op,
2281 int motion_x, int motion_y)
2283 const int lowres = s->avctx->lowres;
2284 const int op_index = FFMIN(lowres, 3);
2285 const int s_mask = (2 << lowres) - 1;
2289 if (s->quarter_sample) {
2294 sx = motion_x & s_mask;
2295 sy = motion_y & s_mask;
2296 src_x += motion_x >> lowres + 1;
2297 src_y += motion_y >> lowres + 1;
2299 src += src_y * stride + src_x;
2301 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2302 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2303 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
2304 s->linesize, s->linesize,
2305 w + 1, (h + 1) << field_based,
2306 src_x, src_y << field_based,
2307 h_edge_pos, v_edge_pos);
2308 src = s->edge_emu_buffer;
2312 sx = (sx << 2) >> lowres;
2313 sy = (sy << 2) >> lowres;
2316 pix_op[op_index](dest, src, stride, h, sx, sy);
2320 /* apply one mpeg motion vector to the three components */
2321 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2328 uint8_t **ref_picture,
2329 h264_chroma_mc_func *pix_op,
2330 int motion_x, int motion_y,
2333 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2334 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2335 ptrdiff_t uvlinesize, linesize;
2336 const int lowres = s->avctx->lowres;
2337 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2338 const int block_s = 8>>lowres;
2339 const int s_mask = (2 << lowres) - 1;
2340 const int h_edge_pos = s->h_edge_pos >> lowres;
2341 const int v_edge_pos = s->v_edge_pos >> lowres;
2342 linesize = s->current_picture.f.linesize[0] << field_based;
2343 uvlinesize = s->current_picture.f.linesize[1] << field_based;
2345 // FIXME obviously not perfect but qpel will not work in lowres anyway
2346 if (s->quarter_sample) {
2352 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2355 sx = motion_x & s_mask;
2356 sy = motion_y & s_mask;
2357 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2358 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2360 if (s->out_format == FMT_H263) {
2361 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2362 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2363 uvsrc_x = src_x >> 1;
2364 uvsrc_y = src_y >> 1;
2365 } else if (s->out_format == FMT_H261) {
2366 // even chroma mv's are full pel in H261
2369 uvsx = (2 * mx) & s_mask;
2370 uvsy = (2 * my) & s_mask;
2371 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2372 uvsrc_y = mb_y * block_s + (my >> lowres);
2374 if(s->chroma_y_shift){
2379 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2380 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2382 if(s->chroma_x_shift){
2386 uvsy = motion_y & s_mask;
2388 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2391 uvsx = motion_x & s_mask;
2392 uvsy = motion_y & s_mask;
2399 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2400 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2401 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2403 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2404 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2405 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2406 linesize >> field_based, linesize >> field_based,
2407 17, 17 + field_based,
2408 src_x, src_y << field_based, h_edge_pos,
2410 ptr_y = s->edge_emu_buffer;
2411 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2412 uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
2413 s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
2414 uvlinesize >> field_based, uvlinesize >> field_based,
2416 uvsrc_x, uvsrc_y << field_based,
2417 h_edge_pos >> 1, v_edge_pos >> 1);
2418 s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
2419 uvlinesize >> field_based,uvlinesize >> field_based,
2421 uvsrc_x, uvsrc_y << field_based,
2422 h_edge_pos >> 1, v_edge_pos >> 1);
2424 ptr_cr = uvbuf + 16;
2428 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f.data
2430 dest_y += s->linesize;
2431 dest_cb += s->uvlinesize;
2432 dest_cr += s->uvlinesize;
2436 ptr_y += s->linesize;
2437 ptr_cb += s->uvlinesize;
2438 ptr_cr += s->uvlinesize;
2441 sx = (sx << 2) >> lowres;
2442 sy = (sy << 2) >> lowres;
2443 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2445 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2446 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2447 uvsx = (uvsx << 2) >> lowres;
2448 uvsy = (uvsy << 2) >> lowres;
2450 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2451 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2454 // FIXME h261 lowres loop filter
2457 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2458 uint8_t *dest_cb, uint8_t *dest_cr,
2459 uint8_t **ref_picture,
2460 h264_chroma_mc_func * pix_op,
2463 const int lowres = s->avctx->lowres;
2464 const int op_index = FFMIN(lowres, 3);
2465 const int block_s = 8 >> lowres;
2466 const int s_mask = (2 << lowres) - 1;
2467 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2468 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2469 int emu = 0, src_x, src_y, sx, sy;
2473 if (s->quarter_sample) {
2478 /* In case of 8X8, we construct a single chroma motion vector
2479 with a special rounding */
2480 mx = ff_h263_round_chroma(mx);
2481 my = ff_h263_round_chroma(my);
2485 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2486 src_y = s->mb_y * block_s + (my >> lowres + 1);
2488 offset = src_y * s->uvlinesize + src_x;
2489 ptr = ref_picture[1] + offset;
2490 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2491 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2492 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2493 s->uvlinesize, s->uvlinesize,
2495 src_x, src_y, h_edge_pos, v_edge_pos);
2496 ptr = s->edge_emu_buffer;
2499 sx = (sx << 2) >> lowres;
2500 sy = (sy << 2) >> lowres;
2501 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2503 ptr = ref_picture[2] + offset;
2505 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2506 s->uvlinesize, s->uvlinesize,
2508 src_x, src_y, h_edge_pos, v_edge_pos);
2509 ptr = s->edge_emu_buffer;
2511 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2515 * motion compensation of a single macroblock
2517 * @param dest_y luma destination pointer
2518 * @param dest_cb chroma cb/u destination pointer
2519 * @param dest_cr chroma cr/v destination pointer
2520 * @param dir direction (0->forward, 1->backward)
2521 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2522 * @param pix_op halfpel motion compensation function (average or put normally)
2523 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2525 static inline void MPV_motion_lowres(MpegEncContext *s,
2526 uint8_t *dest_y, uint8_t *dest_cb,
2528 int dir, uint8_t **ref_picture,
2529 h264_chroma_mc_func *pix_op)
2533 const int lowres = s->avctx->lowres;
2534 const int block_s = 8 >>lowres;
2539 switch (s->mv_type) {
2541 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2543 ref_picture, pix_op,
2544 s->mv[dir][0][0], s->mv[dir][0][1],
2550 for (i = 0; i < 4; i++) {
2551 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2552 s->linesize) * block_s,
2553 ref_picture[0], 0, 0,
2554 (2 * mb_x + (i & 1)) * block_s,
2555 (2 * mb_y + (i >> 1)) * block_s,
2556 s->width, s->height, s->linesize,
2557 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2558 block_s, block_s, pix_op,
2559 s->mv[dir][i][0], s->mv[dir][i][1]);
2561 mx += s->mv[dir][i][0];
2562 my += s->mv[dir][i][1];
2565 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2566 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2570 if (s->picture_structure == PICT_FRAME) {
2572 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2573 1, 0, s->field_select[dir][0],
2574 ref_picture, pix_op,
2575 s->mv[dir][0][0], s->mv[dir][0][1],
2578 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2579 1, 1, s->field_select[dir][1],
2580 ref_picture, pix_op,
2581 s->mv[dir][1][0], s->mv[dir][1][1],
2584 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2585 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2586 ref_picture = s->current_picture_ptr->f.data;
2589 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2590 0, 0, s->field_select[dir][0],
2591 ref_picture, pix_op,
2593 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2597 for (i = 0; i < 2; i++) {
2598 uint8_t **ref2picture;
2600 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2601 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2602 ref2picture = ref_picture;
2604 ref2picture = s->current_picture_ptr->f.data;
2607 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2608 0, 0, s->field_select[dir][i],
2609 ref2picture, pix_op,
2610 s->mv[dir][i][0], s->mv[dir][i][1] +
2611 2 * block_s * i, block_s, mb_y >> 1);
2613 dest_y += 2 * block_s * s->linesize;
2614 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2615 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2619 if (s->picture_structure == PICT_FRAME) {
2620 for (i = 0; i < 2; i++) {
2622 for (j = 0; j < 2; j++) {
2623 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2625 ref_picture, pix_op,
2626 s->mv[dir][2 * i + j][0],
2627 s->mv[dir][2 * i + j][1],
2630 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2633 for (i = 0; i < 2; i++) {
2634 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2635 0, 0, s->picture_structure != i + 1,
2636 ref_picture, pix_op,
2637 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2638 2 * block_s, mb_y >> 1);
2640 // after put we make avg of the same block
2641 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2643 // opposite parity is always in the same
2644 // frame if this is second field
2645 if (!s->first_field) {
2646 ref_picture = s->current_picture_ptr->f.data;
2657 * find the lowest MB row referenced in the MVs
2659 int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
2661 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2662 int my, off, i, mvs;
2664 if (s->picture_structure != PICT_FRAME || s->mcsel)
2667 switch (s->mv_type) {
2681 for (i = 0; i < mvs; i++) {
2682 my = s->mv[dir][i][1]<<qpel_shift;
2683 my_max = FFMAX(my_max, my);
2684 my_min = FFMIN(my_min, my);
2687 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2689 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2691 return s->mb_height-1;
2694 /* put block[] to dest[] */
2695 static inline void put_dct(MpegEncContext *s,
2696 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2698 s->dct_unquantize_intra(s, block, i, qscale);
2699 s->dsp.idct_put (dest, line_size, block);
2702 /* add block[] to dest[] */
2703 static inline void add_dct(MpegEncContext *s,
2704 int16_t *block, int i, uint8_t *dest, int line_size)
2706 if (s->block_last_index[i] >= 0) {
2707 s->dsp.idct_add (dest, line_size, block);
2711 static inline void add_dequant_dct(MpegEncContext *s,
2712 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2714 if (s->block_last_index[i] >= 0) {
2715 s->dct_unquantize_inter(s, block, i, qscale);
2717 s->dsp.idct_add (dest, line_size, block);
2722 * Clean dc, ac, coded_block for the current non-intra MB.
2724 void ff_clean_intra_table_entries(MpegEncContext *s)
2726 int wrap = s->b8_stride;
2727 int xy = s->block_index[0];
2730 s->dc_val[0][xy + 1 ] =
2731 s->dc_val[0][xy + wrap] =
2732 s->dc_val[0][xy + 1 + wrap] = 1024;
2734 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2735 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2736 if (s->msmpeg4_version>=3) {
2737 s->coded_block[xy ] =
2738 s->coded_block[xy + 1 ] =
2739 s->coded_block[xy + wrap] =
2740 s->coded_block[xy + 1 + wrap] = 0;
2743 wrap = s->mb_stride;
2744 xy = s->mb_x + s->mb_y * wrap;
2746 s->dc_val[2][xy] = 1024;
2748 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2749 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2751 s->mbintra_table[xy]= 0;
2754 /* generic function called after a macroblock has been parsed by the
2755 decoder or after it has been encoded by the encoder.
2757 Important variables used:
2758 s->mb_intra : true if intra macroblock
2759 s->mv_dir : motion vector direction
2760 s->mv_type : motion vector type
2761 s->mv : motion vector
2762 s->interlaced_dct : true if interlaced dct used (mpeg2)
2764 static av_always_inline
2765 void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2766 int lowres_flag, int is_mpeg12)
2768 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2771 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
2772 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
2776 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2777 /* print DCT coefficients */
2779 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2781 for(j=0; j<64; j++){
2782 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
2784 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2788 s->current_picture.qscale_table[mb_xy] = s->qscale;
2790 /* update DC predictors for P macroblocks */
2792 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2793 if(s->mbintra_table[mb_xy])
2794 ff_clean_intra_table_entries(s);
2798 s->last_dc[2] = 128 << s->intra_dc_precision;
2801 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2802 s->mbintra_table[mb_xy]=1;
2804 if ( (s->flags&CODEC_FLAG_PSNR)
2805 || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor
2806 || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
2807 uint8_t *dest_y, *dest_cb, *dest_cr;
2808 int dct_linesize, dct_offset;
2809 op_pixels_func (*op_pix)[4];
2810 qpel_mc_func (*op_qpix)[16];
2811 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
2812 const int uvlinesize = s->current_picture.f.linesize[1];
2813 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2814 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2816 /* avoid copy if macroblock skipped in last frame too */
2817 /* skip only during decoding as we might trash the buffers during encoding a bit */
2819 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2821 if (s->mb_skipped) {
2823 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2825 } else if(!s->current_picture.reference) {
2828 *mbskip_ptr = 0; /* not skipped */
2832 dct_linesize = linesize << s->interlaced_dct;
2833 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2837 dest_cb= s->dest[1];
2838 dest_cr= s->dest[2];
2840 dest_y = s->b_scratchpad;
2841 dest_cb= s->b_scratchpad+16*linesize;
2842 dest_cr= s->b_scratchpad+32*linesize;
2846 /* motion handling */
2847 /* decoding or more than one mb_type (MC was already done otherwise) */
2850 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2851 if (s->mv_dir & MV_DIR_FORWARD) {
2852 ff_thread_await_progress(&s->last_picture_ptr->tf,
2853 ff_MPV_lowest_referenced_row(s, 0),
2856 if (s->mv_dir & MV_DIR_BACKWARD) {
2857 ff_thread_await_progress(&s->next_picture_ptr->tf,
2858 ff_MPV_lowest_referenced_row(s, 1),
2864 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2866 if (s->mv_dir & MV_DIR_FORWARD) {
2867 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix);
2868 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2870 if (s->mv_dir & MV_DIR_BACKWARD) {
2871 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix);
2874 op_qpix = s->me.qpel_put;
2875 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2876 op_pix = s->hdsp.put_pixels_tab;
2878 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2880 if (s->mv_dir & MV_DIR_FORWARD) {
2881 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
2882 op_pix = s->hdsp.avg_pixels_tab;
2883 op_qpix= s->me.qpel_avg;
2885 if (s->mv_dir & MV_DIR_BACKWARD) {
2886 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
2891 /* skip dequant / idct if we are really late ;) */
2892 if(s->avctx->skip_idct){
2893 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2894 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2895 || s->avctx->skip_idct >= AVDISCARD_ALL)
2899 /* add dct residue */
2900 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2901 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2902 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2903 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2904 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2905 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2907 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2908 if (s->chroma_y_shift){
2909 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2910 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2914 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2915 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2916 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2917 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2920 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2921 add_dct(s, block[0], 0, dest_y , dct_linesize);
2922 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2923 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2924 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2926 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2927 if(s->chroma_y_shift){//Chroma420
2928 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2929 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2932 dct_linesize = uvlinesize << s->interlaced_dct;
2933 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2935 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2936 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2937 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2938 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2939 if(!s->chroma_x_shift){//Chroma444
2940 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2941 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2942 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2943 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2948 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2949 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2952 /* dct only in intra block */
2953 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2954 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2955 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2956 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2957 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2959 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2960 if(s->chroma_y_shift){
2961 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2962 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2966 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2967 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2968 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2969 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2973 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2974 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2975 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2976 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2978 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2979 if(s->chroma_y_shift){
2980 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
2981 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
2984 dct_linesize = uvlinesize << s->interlaced_dct;
2985 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2987 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
2988 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
2989 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2990 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2991 if(!s->chroma_x_shift){//Chroma444
2992 s->dsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2993 s->dsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2994 s->dsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2995 s->dsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
3003 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
3004 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
3005 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
3010 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
3012 if(s->out_format == FMT_MPEG1) {
3013 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
3014 else MPV_decode_mb_internal(s, block, 0, 1);
3017 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0);
3018 else MPV_decode_mb_internal(s, block, 0, 0);
3022 * @param h is the normal height, this will be reduced automatically if needed for the last row
3024 void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
3025 Picture *last, int y, int h, int picture_structure,
3026 int first_field, int low_delay,
3027 int v_edge_pos, int h_edge_pos)
3029 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
3030 int vshift = desc->log2_chroma_h;
3031 const int field_pic = picture_structure != PICT_FRAME;
3037 h = FFMIN(h, avctx->height - y);
3039 if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
3041 if (avctx->draw_horiz_band) {
3043 int offset[AV_NUM_DATA_POINTERS];
3046 if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay ||
3047 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
3054 if (cur->f.pict_type == AV_PICTURE_TYPE_B &&
3055 picture_structure == PICT_FRAME &&
3056 avctx->codec_id != AV_CODEC_ID_SVQ3) {
3057 for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
3060 offset[0]= y * src->linesize[0];
3062 offset[2]= (y >> vshift) * src->linesize[1];
3063 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
3069 avctx->draw_horiz_band(avctx, src, offset,
3070 y, picture_structure, h);
3074 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
3076 ff_draw_horiz_band(s->avctx, &s->dsp, s->current_picture_ptr,
3077 s->last_picture_ptr, y, h, s->picture_structure,
3078 s->first_field, s->low_delay,
3079 s->v_edge_pos, s->h_edge_pos);
3082 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3083 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
3084 const int uvlinesize = s->current_picture.f.linesize[1];
3085 const int mb_size= 4 - s->avctx->lowres;
3087 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3088 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3089 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3090 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3091 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3092 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;
3093 //block_index is not used by mpeg2, so it is not affected by chroma_format
3095 s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size);
3096 s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3097 s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3099 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3101 if(s->picture_structure==PICT_FRAME){
3102 s->dest[0] += s->mb_y * linesize << mb_size;
3103 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3104 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3106 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3107 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3108 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3109 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3115 * Permute an 8x8 block.
3116 * @param block the block which will be permuted according to the given permutation vector
3117 * @param permutation the permutation vector
3118 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3119 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3120 * (inverse) permutated to scantable order!
3122 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3128 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3130 for(i=0; i<=last; i++){
3131 const int j= scantable[i];
3136 for(i=0; i<=last; i++){
3137 const int j= scantable[i];
3138 const int perm_j= permutation[j];
3139 block[perm_j]= temp[j];
3143 void ff_mpeg_flush(AVCodecContext *avctx){
3145 MpegEncContext *s = avctx->priv_data;
3147 if(s==NULL || s->picture==NULL)
3150 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3151 ff_mpeg_unref_picture(s, &s->picture[i]);
3152 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3154 ff_mpeg_unref_picture(s, &s->current_picture);
3155 ff_mpeg_unref_picture(s, &s->last_picture);
3156 ff_mpeg_unref_picture(s, &s->next_picture);
3158 s->mb_x= s->mb_y= 0;
3161 s->parse_context.state= -1;
3162 s->parse_context.frame_start_found= 0;
3163 s->parse_context.overread= 0;
3164 s->parse_context.overread_index= 0;
3165 s->parse_context.index= 0;
3166 s->parse_context.last_index= 0;
3167 s->bitstream_buffer_size=0;
3172 * set qscale and update qscale dependent variables.
3174 void ff_set_qscale(MpegEncContext * s, int qscale)
3178 else if (qscale > 31)
3182 s->chroma_qscale= s->chroma_qscale_table[qscale];
3184 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3185 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3188 void ff_MPV_report_decode_progress(MpegEncContext *s)
3190 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3191 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
3194 #if CONFIG_ERROR_RESILIENCE
3195 void ff_mpeg_er_frame_start(MpegEncContext *s)
3197 ERContext *er = &s->er;
3199 er->cur_pic = s->current_picture_ptr;
3200 er->last_pic = s->last_picture_ptr;
3201 er->next_pic = s->next_picture_ptr;
3203 er->pp_time = s->pp_time;
3204 er->pb_time = s->pb_time;
3205 er->quarter_sample = s->quarter_sample;
3206 er->partitioned_frame = s->partitioned_frame;
3208 ff_er_frame_start(er);
3210 #endif /* CONFIG_ERROR_RESILIENCE */