2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/motion_vector.h"
35 #include "libavutil/timer.h"
38 #include "h264chroma.h"
42 #include "mpegutils.h"
43 #include "mpegvideo.h"
50 static const uint8_t ff_default_chroma_qscale_table[32] = {
51 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
52 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
53 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
56 const uint8_t ff_mpeg1_dc_scale_table[128] = {
57 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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,
63 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
64 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
65 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
68 static const uint8_t mpeg2_dc_scale_table1[128] = {
69 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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,
75 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
76 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
77 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
80 static const uint8_t mpeg2_dc_scale_table2[128] = {
81 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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,
87 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
88 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
89 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
92 static const uint8_t mpeg2_dc_scale_table3[128] = {
93 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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,
99 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
100 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
101 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
104 const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
105 ff_mpeg1_dc_scale_table,
106 mpeg2_dc_scale_table1,
107 mpeg2_dc_scale_table2,
108 mpeg2_dc_scale_table3,
111 const uint8_t ff_alternate_horizontal_scan[64] = {
112 0, 1, 2, 3, 8, 9, 16, 17,
113 10, 11, 4, 5, 6, 7, 15, 14,
114 13, 12, 19, 18, 24, 25, 32, 33,
115 26, 27, 20, 21, 22, 23, 28, 29,
116 30, 31, 34, 35, 40, 41, 48, 49,
117 42, 43, 36, 37, 38, 39, 44, 45,
118 46, 47, 50, 51, 56, 57, 58, 59,
119 52, 53, 54, 55, 60, 61, 62, 63,
122 const uint8_t ff_alternate_vertical_scan[64] = {
123 0, 8, 16, 24, 1, 9, 2, 10,
124 17, 25, 32, 40, 48, 56, 57, 49,
125 41, 33, 26, 18, 3, 11, 4, 12,
126 19, 27, 34, 42, 50, 58, 35, 43,
127 51, 59, 20, 28, 5, 13, 6, 14,
128 21, 29, 36, 44, 52, 60, 37, 45,
129 53, 61, 22, 30, 7, 15, 23, 31,
130 38, 46, 54, 62, 39, 47, 55, 63,
133 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
134 int16_t *block, int n, int qscale)
136 int i, level, nCoeffs;
137 const uint16_t *quant_matrix;
139 nCoeffs= s->block_last_index[n];
141 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
142 /* XXX: only mpeg1 */
143 quant_matrix = s->intra_matrix;
144 for(i=1;i<=nCoeffs;i++) {
145 int j= s->intra_scantable.permutated[i];
150 level = (int)(level * qscale * quant_matrix[j]) >> 3;
151 level = (level - 1) | 1;
154 level = (int)(level * qscale * quant_matrix[j]) >> 3;
155 level = (level - 1) | 1;
162 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
163 int16_t *block, int n, int qscale)
165 int i, level, nCoeffs;
166 const uint16_t *quant_matrix;
168 nCoeffs= s->block_last_index[n];
170 quant_matrix = s->inter_matrix;
171 for(i=0; i<=nCoeffs; i++) {
172 int j= s->intra_scantable.permutated[i];
177 level = (((level << 1) + 1) * qscale *
178 ((int) (quant_matrix[j]))) >> 4;
179 level = (level - 1) | 1;
182 level = (((level << 1) + 1) * qscale *
183 ((int) (quant_matrix[j]))) >> 4;
184 level = (level - 1) | 1;
191 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
192 int16_t *block, int n, int qscale)
194 int i, level, nCoeffs;
195 const uint16_t *quant_matrix;
197 if(s->alternate_scan) nCoeffs= 63;
198 else nCoeffs= s->block_last_index[n];
200 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
201 quant_matrix = s->intra_matrix;
202 for(i=1;i<=nCoeffs;i++) {
203 int j= s->intra_scantable.permutated[i];
208 level = (int)(level * qscale * quant_matrix[j]) >> 3;
211 level = (int)(level * qscale * quant_matrix[j]) >> 3;
218 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
219 int16_t *block, int n, int qscale)
221 int i, level, nCoeffs;
222 const uint16_t *quant_matrix;
225 if(s->alternate_scan) nCoeffs= 63;
226 else nCoeffs= s->block_last_index[n];
228 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
230 quant_matrix = s->intra_matrix;
231 for(i=1;i<=nCoeffs;i++) {
232 int j= s->intra_scantable.permutated[i];
237 level = (int)(level * qscale * quant_matrix[j]) >> 3;
240 level = (int)(level * qscale * quant_matrix[j]) >> 3;
249 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
250 int16_t *block, int n, int qscale)
252 int i, level, nCoeffs;
253 const uint16_t *quant_matrix;
256 if(s->alternate_scan) nCoeffs= 63;
257 else nCoeffs= s->block_last_index[n];
259 quant_matrix = s->inter_matrix;
260 for(i=0; i<=nCoeffs; i++) {
261 int j= s->intra_scantable.permutated[i];
266 level = (((level << 1) + 1) * qscale *
267 ((int) (quant_matrix[j]))) >> 4;
270 level = (((level << 1) + 1) * qscale *
271 ((int) (quant_matrix[j]))) >> 4;
280 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
281 int16_t *block, int n, int qscale)
283 int i, level, qmul, qadd;
286 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
291 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
292 qadd = (qscale - 1) | 1;
299 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
301 for(i=1; i<=nCoeffs; i++) {
305 level = level * qmul - qadd;
307 level = level * qmul + qadd;
314 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
315 int16_t *block, int n, int qscale)
317 int i, level, qmul, qadd;
320 av_assert2(s->block_last_index[n]>=0);
322 qadd = (qscale - 1) | 1;
325 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
327 for(i=0; i<=nCoeffs; i++) {
331 level = level * qmul - qadd;
333 level = level * qmul + qadd;
340 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
342 int mb_x, int mb_y, int mb_intra, int mb_skipped)
344 MpegEncContext *s = opaque;
347 s->mv_type = mv_type;
348 s->mb_intra = mb_intra;
349 s->mb_skipped = mb_skipped;
352 memcpy(s->mv, mv, sizeof(*mv));
354 ff_init_block_index(s);
355 ff_update_block_index(s);
357 s->bdsp.clear_blocks(s->block[0]);
359 s->dest[0] = s->current_picture.f->data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
360 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);
361 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);
364 av_log(s->avctx, AV_LOG_DEBUG, "Interlaced error concealment is not fully implemented\n");
365 ff_mpv_decode_mb(s, s->block);
368 static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
371 memset(dst + h*linesize, 128, 16);
374 static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
377 memset(dst + h*linesize, 128, 8);
380 /* init common dct for both encoder and decoder */
381 static av_cold int dct_init(MpegEncContext *s)
383 ff_blockdsp_init(&s->bdsp, s->avctx);
384 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
385 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
386 ff_me_cmp_init(&s->mecc, s->avctx);
387 ff_mpegvideodsp_init(&s->mdsp);
388 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
390 if (s->avctx->debug & FF_DEBUG_NOMC) {
392 for (i=0; i<4; i++) {
393 s->hdsp.avg_pixels_tab[0][i] = gray16;
394 s->hdsp.put_pixels_tab[0][i] = gray16;
395 s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
397 s->hdsp.avg_pixels_tab[1][i] = gray8;
398 s->hdsp.put_pixels_tab[1][i] = gray8;
399 s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
403 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
404 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
405 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
406 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
407 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
408 if (s->flags & CODEC_FLAG_BITEXACT)
409 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
410 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
412 if (HAVE_INTRINSICS_NEON)
413 ff_mpv_common_init_neon(s);
416 ff_mpv_common_init_axp(s);
418 ff_mpv_common_init_arm(s);
420 ff_mpv_common_init_ppc(s);
422 ff_mpv_common_init_x86(s);
427 av_cold void ff_mpv_idct_init(MpegEncContext *s)
429 ff_idctdsp_init(&s->idsp, s->avctx);
431 /* load & permutate scantables
432 * note: only wmv uses different ones
434 if (s->alternate_scan) {
435 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
436 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
438 ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
439 ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
441 ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
442 ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
445 static int frame_size_alloc(MpegEncContext *s, int linesize)
447 int alloc_size = FFALIGN(FFABS(linesize) + 64, 32);
449 if (s->avctx->hwaccel || s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
453 av_log(s->avctx, AV_LOG_ERROR, "Image too small, temporary buffers cannot function\n");
454 return AVERROR_PATCHWELCOME;
457 // edge emu needs blocksize + filter length - 1
458 // (= 17x17 for halfpel / 21x21 for h264)
459 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
460 // at uvlinesize. It supports only YUV420 so 24x24 is enough
461 // linesize * interlaced * MBsize
462 // we also use this buffer for encoding in encode_mb_internal() needig an additional 32 lines
463 FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 4 * 68,
466 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 4 * 16 * 2,
468 s->me.temp = s->me.scratchpad;
469 s->rd_scratchpad = s->me.scratchpad;
470 s->b_scratchpad = s->me.scratchpad;
471 s->obmc_scratchpad = s->me.scratchpad + 16;
475 av_freep(&s->edge_emu_buffer);
476 return AVERROR(ENOMEM);
480 * Allocate a frame buffer
482 static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
484 int edges_needed = av_codec_is_encoder(s->avctx->codec);
488 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
489 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
490 s->codec_id != AV_CODEC_ID_MSS2) {
492 pic->f->width = s->avctx->width + 2 * EDGE_WIDTH;
493 pic->f->height = s->avctx->height + 2 * EDGE_WIDTH;
496 r = ff_thread_get_buffer(s->avctx, &pic->tf,
497 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
499 pic->f->width = s->avctx->width;
500 pic->f->height = s->avctx->height;
501 pic->f->format = s->avctx->pix_fmt;
502 r = avcodec_default_get_buffer2(s->avctx, pic->f, 0);
505 if (r < 0 || !pic->f->buf[0]) {
506 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
513 for (i = 0; pic->f->data[i]; i++) {
514 int offset = (EDGE_WIDTH >> (i ? s->chroma_y_shift : 0)) *
515 pic->f->linesize[i] +
516 (EDGE_WIDTH >> (i ? s->chroma_x_shift : 0));
517 pic->f->data[i] += offset;
519 pic->f->width = s->avctx->width;
520 pic->f->height = s->avctx->height;
523 if (s->avctx->hwaccel) {
524 assert(!pic->hwaccel_picture_private);
525 if (s->avctx->hwaccel->frame_priv_data_size) {
526 pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->frame_priv_data_size);
527 if (!pic->hwaccel_priv_buf) {
528 av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
531 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
535 if (s->linesize && (s->linesize != pic->f->linesize[0] ||
536 s->uvlinesize != pic->f->linesize[1])) {
537 av_log(s->avctx, AV_LOG_ERROR,
538 "get_buffer() failed (stride changed)\n");
539 ff_mpeg_unref_picture(s, pic);
543 if (pic->f->linesize[1] != pic->f->linesize[2]) {
544 av_log(s->avctx, AV_LOG_ERROR,
545 "get_buffer() failed (uv stride mismatch)\n");
546 ff_mpeg_unref_picture(s, pic);
550 if (!s->edge_emu_buffer &&
551 (ret = frame_size_alloc(s, pic->f->linesize[0])) < 0) {
552 av_log(s->avctx, AV_LOG_ERROR,
553 "get_buffer() failed to allocate context scratch buffers.\n");
554 ff_mpeg_unref_picture(s, pic);
561 void ff_free_picture_tables(Picture *pic)
565 pic->alloc_mb_width =
566 pic->alloc_mb_height = 0;
568 av_buffer_unref(&pic->mb_var_buf);
569 av_buffer_unref(&pic->mc_mb_var_buf);
570 av_buffer_unref(&pic->mb_mean_buf);
571 av_buffer_unref(&pic->mbskip_table_buf);
572 av_buffer_unref(&pic->qscale_table_buf);
573 av_buffer_unref(&pic->mb_type_buf);
575 for (i = 0; i < 2; i++) {
576 av_buffer_unref(&pic->motion_val_buf[i]);
577 av_buffer_unref(&pic->ref_index_buf[i]);
581 static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
583 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
584 const int mb_array_size = s->mb_stride * s->mb_height;
585 const int b8_array_size = s->b8_stride * s->mb_height * 2;
589 pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
590 pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride);
591 pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) *
593 if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
594 return AVERROR(ENOMEM);
597 pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
598 pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
599 pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
600 if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
601 return AVERROR(ENOMEM);
604 if (s->out_format == FMT_H263 || s->encoding || s->avctx->debug_mv ||
605 (s->avctx->flags2 & CODEC_FLAG2_EXPORT_MVS)) {
606 int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
607 int ref_index_size = 4 * mb_array_size;
609 for (i = 0; mv_size && i < 2; i++) {
610 pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
611 pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size);
612 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
613 return AVERROR(ENOMEM);
617 pic->alloc_mb_width = s->mb_width;
618 pic->alloc_mb_height = s->mb_height;
623 static int make_tables_writable(Picture *pic)
626 #define MAKE_WRITABLE(table) \
629 (ret = av_buffer_make_writable(&pic->table)) < 0)\
633 MAKE_WRITABLE(mb_var_buf);
634 MAKE_WRITABLE(mc_mb_var_buf);
635 MAKE_WRITABLE(mb_mean_buf);
636 MAKE_WRITABLE(mbskip_table_buf);
637 MAKE_WRITABLE(qscale_table_buf);
638 MAKE_WRITABLE(mb_type_buf);
640 for (i = 0; i < 2; i++) {
641 MAKE_WRITABLE(motion_val_buf[i]);
642 MAKE_WRITABLE(ref_index_buf[i]);
649 * Allocate a Picture.
650 * The pixels are allocated/set by calling get_buffer() if shared = 0
652 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
656 if (pic->qscale_table_buf)
657 if ( pic->alloc_mb_width != s->mb_width
658 || pic->alloc_mb_height != s->mb_height)
659 ff_free_picture_tables(pic);
662 av_assert0(pic->f->data[0]);
665 av_assert0(!pic->f->buf[0]);
667 if (alloc_frame_buffer(s, pic) < 0)
670 s->linesize = pic->f->linesize[0];
671 s->uvlinesize = pic->f->linesize[1];
674 if (!pic->qscale_table_buf)
675 ret = alloc_picture_tables(s, pic);
677 ret = make_tables_writable(pic);
682 pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
683 pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
684 pic->mb_mean = pic->mb_mean_buf->data;
687 pic->mbskip_table = pic->mbskip_table_buf->data;
688 pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1;
689 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
691 if (pic->motion_val_buf[0]) {
692 for (i = 0; i < 2; i++) {
693 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
694 pic->ref_index[i] = pic->ref_index_buf[i]->data;
700 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
701 ff_mpeg_unref_picture(s, pic);
702 ff_free_picture_tables(pic);
703 return AVERROR(ENOMEM);
707 * Deallocate a picture.
709 void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
711 int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
714 /* WM Image / Screen codecs allocate internal buffers with different
715 * dimensions / colorspaces; ignore user-defined callbacks for these. */
716 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
717 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
718 s->codec_id != AV_CODEC_ID_MSS2)
719 ff_thread_release_buffer(s->avctx, &pic->tf);
721 av_frame_unref(pic->f);
723 av_buffer_unref(&pic->hwaccel_priv_buf);
725 if (pic->needs_realloc)
726 ff_free_picture_tables(pic);
728 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
731 static int update_picture_tables(Picture *dst, Picture *src)
735 #define UPDATE_TABLE(table)\
738 (!dst->table || dst->table->buffer != src->table->buffer)) {\
739 av_buffer_unref(&dst->table);\
740 dst->table = av_buffer_ref(src->table);\
742 ff_free_picture_tables(dst);\
743 return AVERROR(ENOMEM);\
748 UPDATE_TABLE(mb_var_buf);
749 UPDATE_TABLE(mc_mb_var_buf);
750 UPDATE_TABLE(mb_mean_buf);
751 UPDATE_TABLE(mbskip_table_buf);
752 UPDATE_TABLE(qscale_table_buf);
753 UPDATE_TABLE(mb_type_buf);
754 for (i = 0; i < 2; i++) {
755 UPDATE_TABLE(motion_val_buf[i]);
756 UPDATE_TABLE(ref_index_buf[i]);
759 dst->mb_var = src->mb_var;
760 dst->mc_mb_var = src->mc_mb_var;
761 dst->mb_mean = src->mb_mean;
762 dst->mbskip_table = src->mbskip_table;
763 dst->qscale_table = src->qscale_table;
764 dst->mb_type = src->mb_type;
765 for (i = 0; i < 2; i++) {
766 dst->motion_val[i] = src->motion_val[i];
767 dst->ref_index[i] = src->ref_index[i];
770 dst->alloc_mb_width = src->alloc_mb_width;
771 dst->alloc_mb_height = src->alloc_mb_height;
776 int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
780 av_assert0(!dst->f->buf[0]);
781 av_assert0(src->f->buf[0]);
785 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
789 ret = update_picture_tables(dst, src);
793 if (src->hwaccel_picture_private) {
794 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
795 if (!dst->hwaccel_priv_buf)
797 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
800 dst->field_picture = src->field_picture;
801 dst->mb_var_sum = src->mb_var_sum;
802 dst->mc_mb_var_sum = src->mc_mb_var_sum;
803 dst->b_frame_score = src->b_frame_score;
804 dst->needs_realloc = src->needs_realloc;
805 dst->reference = src->reference;
806 dst->shared = src->shared;
810 ff_mpeg_unref_picture(s, dst);
814 static void exchange_uv(MpegEncContext *s)
819 s->pblocks[4] = s->pblocks[5];
823 static int init_duplicate_context(MpegEncContext *s)
825 int y_size = s->b8_stride * (2 * s->mb_height + 1);
826 int c_size = s->mb_stride * (s->mb_height + 1);
827 int yc_size = y_size + 2 * c_size;
830 if (s->mb_height & 1)
831 yc_size += 2*s->b8_stride + 2*s->mb_stride;
838 s->obmc_scratchpad = NULL;
841 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
842 ME_MAP_SIZE * sizeof(uint32_t), fail)
843 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
844 ME_MAP_SIZE * sizeof(uint32_t), fail)
845 if (s->avctx->noise_reduction) {
846 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
847 2 * 64 * sizeof(int), fail)
850 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
851 s->block = s->blocks[0];
853 for (i = 0; i < 12; i++) {
854 s->pblocks[i] = &s->block[i];
856 if (s->avctx->codec_tag == AV_RL32("VCR2"))
859 if (s->out_format == FMT_H263) {
861 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
862 yc_size * sizeof(int16_t) * 16, fail);
863 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
864 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
865 s->ac_val[2] = s->ac_val[1] + c_size;
870 return -1; // free() through ff_mpv_common_end()
873 static void free_duplicate_context(MpegEncContext *s)
878 av_freep(&s->edge_emu_buffer);
879 av_freep(&s->me.scratchpad);
883 s->obmc_scratchpad = NULL;
885 av_freep(&s->dct_error_sum);
886 av_freep(&s->me.map);
887 av_freep(&s->me.score_map);
888 av_freep(&s->blocks);
889 av_freep(&s->ac_val_base);
893 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
895 #define COPY(a) bak->a = src->a
896 COPY(edge_emu_buffer);
901 COPY(obmc_scratchpad);
908 COPY(me.map_generation);
920 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
924 // FIXME copy only needed parts
926 backup_duplicate_context(&bak, dst);
927 memcpy(dst, src, sizeof(MpegEncContext));
928 backup_duplicate_context(dst, &bak);
929 for (i = 0; i < 12; i++) {
930 dst->pblocks[i] = &dst->block[i];
932 if (dst->avctx->codec_tag == AV_RL32("VCR2"))
934 if (!dst->edge_emu_buffer &&
935 (ret = frame_size_alloc(dst, dst->linesize)) < 0) {
936 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
937 "scratch buffers.\n");
940 // STOP_TIMER("update_duplicate_context")
941 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
945 int ff_mpeg_update_thread_context(AVCodecContext *dst,
946 const AVCodecContext *src)
949 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
956 // FIXME can parameters change on I-frames?
957 // in that case dst may need a reinit
958 if (!s->context_initialized) {
959 memcpy(s, s1, sizeof(MpegEncContext));
962 s->bitstream_buffer = NULL;
963 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
965 if (s1->context_initialized){
966 // s->picture_range_start += MAX_PICTURE_COUNT;
967 // s->picture_range_end += MAX_PICTURE_COUNT;
969 if((ret = ff_mpv_common_init(s)) < 0){
970 memset(s, 0, sizeof(MpegEncContext));
977 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
978 s->context_reinit = 0;
979 s->height = s1->height;
980 s->width = s1->width;
981 if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
985 s->avctx->coded_height = s1->avctx->coded_height;
986 s->avctx->coded_width = s1->avctx->coded_width;
987 s->avctx->width = s1->avctx->width;
988 s->avctx->height = s1->avctx->height;
990 s->coded_picture_number = s1->coded_picture_number;
991 s->picture_number = s1->picture_number;
993 av_assert0(!s->picture || s->picture != s1->picture);
995 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
996 ff_mpeg_unref_picture(s, &s->picture[i]);
997 if (s1->picture[i].f->buf[0] &&
998 (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0)
1002 #define UPDATE_PICTURE(pic)\
1004 ff_mpeg_unref_picture(s, &s->pic);\
1005 if (s1->pic.f && s1->pic.f->buf[0])\
1006 ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\
1008 ret = update_picture_tables(&s->pic, &s1->pic);\
1013 UPDATE_PICTURE(current_picture);
1014 UPDATE_PICTURE(last_picture);
1015 UPDATE_PICTURE(next_picture);
1017 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
1018 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
1019 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
1021 // Error/bug resilience
1022 s->next_p_frame_damaged = s1->next_p_frame_damaged;
1023 s->workaround_bugs = s1->workaround_bugs;
1024 s->padding_bug_score = s1->padding_bug_score;
1026 // MPEG4 timing info
1027 memcpy(&s->last_time_base, &s1->last_time_base,
1028 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
1029 (char *) &s1->last_time_base);
1032 s->max_b_frames = s1->max_b_frames;
1033 s->low_delay = s1->low_delay;
1034 s->droppable = s1->droppable;
1036 // DivX handling (doesn't work)
1037 s->divx_packed = s1->divx_packed;
1039 if (s1->bitstream_buffer) {
1040 if (s1->bitstream_buffer_size +
1041 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
1042 av_fast_malloc(&s->bitstream_buffer,
1043 &s->allocated_bitstream_buffer_size,
1044 s1->allocated_bitstream_buffer_size);
1045 s->bitstream_buffer_size = s1->bitstream_buffer_size;
1046 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
1047 s1->bitstream_buffer_size);
1048 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
1049 FF_INPUT_BUFFER_PADDING_SIZE);
1052 // linesize dependend scratch buffer allocation
1053 if (!s->edge_emu_buffer)
1055 if (frame_size_alloc(s, s1->linesize) < 0) {
1056 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
1057 "scratch buffers.\n");
1058 return AVERROR(ENOMEM);
1061 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
1062 "be allocated due to unknown size.\n");
1065 // MPEG2/interlacing info
1066 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
1067 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
1069 if (!s1->first_field) {
1070 s->last_pict_type = s1->pict_type;
1071 if (s1->current_picture_ptr)
1072 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
1079 * Set the given MpegEncContext to common defaults
1080 * (same for encoding and decoding).
1081 * The changed fields will not depend upon the
1082 * prior state of the MpegEncContext.
1084 void ff_mpv_common_defaults(MpegEncContext *s)
1086 s->y_dc_scale_table =
1087 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
1088 s->chroma_qscale_table = ff_default_chroma_qscale_table;
1089 s->progressive_frame = 1;
1090 s->progressive_sequence = 1;
1091 s->picture_structure = PICT_FRAME;
1093 s->coded_picture_number = 0;
1094 s->picture_number = 0;
1099 s->slice_context_count = 1;
1103 * Set the given MpegEncContext to defaults for decoding.
1104 * the changed fields will not depend upon
1105 * the prior state of the MpegEncContext.
1107 void ff_mpv_decode_defaults(MpegEncContext *s)
1109 ff_mpv_common_defaults(s);
1112 void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
1115 s->width = avctx->coded_width;
1116 s->height = avctx->coded_height;
1117 s->codec_id = avctx->codec->id;
1118 s->workaround_bugs = avctx->workaround_bugs;
1119 s->flags = avctx->flags;
1120 s->flags2 = avctx->flags2;
1122 /* convert fourcc to upper case */
1123 s->codec_tag = avpriv_toupper4(avctx->codec_tag);
1125 s->stream_codec_tag = avpriv_toupper4(avctx->stream_codec_tag);
1128 static int init_er(MpegEncContext *s)
1130 ERContext *er = &s->er;
1131 int mb_array_size = s->mb_height * s->mb_stride;
1134 er->avctx = s->avctx;
1135 er->mecc = &s->mecc;
1137 er->mb_index2xy = s->mb_index2xy;
1138 er->mb_num = s->mb_num;
1139 er->mb_width = s->mb_width;
1140 er->mb_height = s->mb_height;
1141 er->mb_stride = s->mb_stride;
1142 er->b8_stride = s->b8_stride;
1144 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
1145 er->error_status_table = av_mallocz(mb_array_size);
1146 if (!er->er_temp_buffer || !er->error_status_table)
1149 er->mbskip_table = s->mbskip_table;
1150 er->mbintra_table = s->mbintra_table;
1152 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
1153 er->dc_val[i] = s->dc_val[i];
1155 er->decode_mb = mpeg_er_decode_mb;
1160 av_freep(&er->er_temp_buffer);
1161 av_freep(&er->error_status_table);
1162 return AVERROR(ENOMEM);
1166 * Initialize and allocates MpegEncContext fields dependent on the resolution.
1168 static int init_context_frame(MpegEncContext *s)
1170 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
1172 s->mb_width = (s->width + 15) / 16;
1173 s->mb_stride = s->mb_width + 1;
1174 s->b8_stride = s->mb_width * 2 + 1;
1175 mb_array_size = s->mb_height * s->mb_stride;
1176 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
1178 /* set default edge pos, will be overridden
1179 * in decode_header if needed */
1180 s->h_edge_pos = s->mb_width * 16;
1181 s->v_edge_pos = s->mb_height * 16;
1183 s->mb_num = s->mb_width * s->mb_height;
1188 s->block_wrap[3] = s->b8_stride;
1190 s->block_wrap[5] = s->mb_stride;
1192 y_size = s->b8_stride * (2 * s->mb_height + 1);
1193 c_size = s->mb_stride * (s->mb_height + 1);
1194 yc_size = y_size + 2 * c_size;
1196 if (s->mb_height & 1)
1197 yc_size += 2*s->b8_stride + 2*s->mb_stride;
1199 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
1200 for (y = 0; y < s->mb_height; y++)
1201 for (x = 0; x < s->mb_width; x++)
1202 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
1204 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
1207 /* Allocate MV tables */
1208 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1209 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1210 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1211 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1212 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1213 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1214 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
1215 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
1216 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
1217 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
1218 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
1219 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
1221 /* Allocate MB type table */
1222 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
1224 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
1226 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
1227 mb_array_size * sizeof(float), fail);
1228 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
1229 mb_array_size * sizeof(float), fail);
1233 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
1234 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
1235 /* interlaced direct mode decoding tables */
1236 for (i = 0; i < 2; i++) {
1238 for (j = 0; j < 2; j++) {
1239 for (k = 0; k < 2; k++) {
1240 FF_ALLOCZ_OR_GOTO(s->avctx,
1241 s->b_field_mv_table_base[i][j][k],
1242 mv_table_size * 2 * sizeof(int16_t),
1244 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
1247 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
1248 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
1249 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
1251 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
1254 if (s->out_format == FMT_H263) {
1256 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
1257 s->coded_block = s->coded_block_base + s->b8_stride + 1;
1259 /* cbp, ac_pred, pred_dir */
1260 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
1261 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
1264 if (s->h263_pred || s->h263_plus || !s->encoding) {
1266 // MN: we need these for error resilience of intra-frames
1267 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
1268 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
1269 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
1270 s->dc_val[2] = s->dc_val[1] + c_size;
1271 for (i = 0; i < yc_size; i++)
1272 s->dc_val_base[i] = 1024;
1275 /* which mb is a intra block */
1276 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
1277 memset(s->mbintra_table, 1, mb_array_size);
1279 /* init macroblock skip table */
1280 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
1281 // Note the + 1 is for a quicker mpeg4 slice_end detection
1285 return AVERROR(ENOMEM);
1289 * init common structure for both encoder and decoder.
1290 * this assumes that some variables like width/height are already set
1292 av_cold int ff_mpv_common_init(MpegEncContext *s)
1295 int nb_slices = (HAVE_THREADS &&
1296 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
1297 s->avctx->thread_count : 1;
1299 if (s->encoding && s->avctx->slices)
1300 nb_slices = s->avctx->slices;
1302 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1303 s->mb_height = (s->height + 31) / 32 * 2;
1305 s->mb_height = (s->height + 15) / 16;
1307 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1308 av_log(s->avctx, AV_LOG_ERROR,
1309 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1313 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1316 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1318 max_slices = MAX_THREADS;
1319 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1320 " reducing to %d\n", nb_slices, max_slices);
1321 nb_slices = max_slices;
1324 if ((s->width || s->height) &&
1325 av_image_check_size(s->width, s->height, 0, s->avctx))
1330 s->flags = s->avctx->flags;
1331 s->flags2 = s->avctx->flags2;
1333 /* set chroma shifts */
1334 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
1336 &s->chroma_y_shift);
1339 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1340 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1341 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1342 s->picture[i].f = av_frame_alloc();
1343 if (!s->picture[i].f)
1346 memset(&s->next_picture, 0, sizeof(s->next_picture));
1347 memset(&s->last_picture, 0, sizeof(s->last_picture));
1348 memset(&s->current_picture, 0, sizeof(s->current_picture));
1349 memset(&s->new_picture, 0, sizeof(s->new_picture));
1350 s->next_picture.f = av_frame_alloc();
1351 if (!s->next_picture.f)
1353 s->last_picture.f = av_frame_alloc();
1354 if (!s->last_picture.f)
1356 s->current_picture.f = av_frame_alloc();
1357 if (!s->current_picture.f)
1359 s->new_picture.f = av_frame_alloc();
1360 if (!s->new_picture.f)
1363 if (init_context_frame(s))
1366 s->parse_context.state = -1;
1368 s->context_initialized = 1;
1369 s->thread_context[0] = s;
1371 // if (s->width && s->height) {
1372 if (nb_slices > 1) {
1373 for (i = 1; i < nb_slices; i++) {
1374 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1375 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1378 for (i = 0; i < nb_slices; i++) {
1379 if (init_duplicate_context(s->thread_context[i]) < 0)
1381 s->thread_context[i]->start_mb_y =
1382 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1383 s->thread_context[i]->end_mb_y =
1384 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1387 if (init_duplicate_context(s) < 0)
1390 s->end_mb_y = s->mb_height;
1392 s->slice_context_count = nb_slices;
1397 ff_mpv_common_end(s);
1402 * Frees and resets MpegEncContext fields depending on the resolution.
1403 * Is used during resolution changes to avoid a full reinitialization of the
1406 static void free_context_frame(MpegEncContext *s)
1410 av_freep(&s->mb_type);
1411 av_freep(&s->p_mv_table_base);
1412 av_freep(&s->b_forw_mv_table_base);
1413 av_freep(&s->b_back_mv_table_base);
1414 av_freep(&s->b_bidir_forw_mv_table_base);
1415 av_freep(&s->b_bidir_back_mv_table_base);
1416 av_freep(&s->b_direct_mv_table_base);
1417 s->p_mv_table = NULL;
1418 s->b_forw_mv_table = NULL;
1419 s->b_back_mv_table = NULL;
1420 s->b_bidir_forw_mv_table = NULL;
1421 s->b_bidir_back_mv_table = NULL;
1422 s->b_direct_mv_table = NULL;
1423 for (i = 0; i < 2; i++) {
1424 for (j = 0; j < 2; j++) {
1425 for (k = 0; k < 2; k++) {
1426 av_freep(&s->b_field_mv_table_base[i][j][k]);
1427 s->b_field_mv_table[i][j][k] = NULL;
1429 av_freep(&s->b_field_select_table[i][j]);
1430 av_freep(&s->p_field_mv_table_base[i][j]);
1431 s->p_field_mv_table[i][j] = NULL;
1433 av_freep(&s->p_field_select_table[i]);
1436 av_freep(&s->dc_val_base);
1437 av_freep(&s->coded_block_base);
1438 av_freep(&s->mbintra_table);
1439 av_freep(&s->cbp_table);
1440 av_freep(&s->pred_dir_table);
1442 av_freep(&s->mbskip_table);
1444 av_freep(&s->er.error_status_table);
1445 av_freep(&s->er.er_temp_buffer);
1446 av_freep(&s->mb_index2xy);
1447 av_freep(&s->lambda_table);
1449 av_freep(&s->cplx_tab);
1450 av_freep(&s->bits_tab);
1452 s->linesize = s->uvlinesize = 0;
1455 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1459 if (s->slice_context_count > 1) {
1460 for (i = 0; i < s->slice_context_count; i++) {
1461 free_duplicate_context(s->thread_context[i]);
1463 for (i = 1; i < s->slice_context_count; i++) {
1464 av_freep(&s->thread_context[i]);
1467 free_duplicate_context(s);
1469 free_context_frame(s);
1472 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1473 s->picture[i].needs_realloc = 1;
1476 s->last_picture_ptr =
1477 s->next_picture_ptr =
1478 s->current_picture_ptr = NULL;
1481 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1482 s->mb_height = (s->height + 31) / 32 * 2;
1484 s->mb_height = (s->height + 15) / 16;
1486 if ((s->width || s->height) &&
1487 av_image_check_size(s->width, s->height, 0, s->avctx))
1490 if ((err = init_context_frame(s)))
1493 s->thread_context[0] = s;
1495 if (s->width && s->height) {
1496 int nb_slices = s->slice_context_count;
1497 if (nb_slices > 1) {
1498 for (i = 1; i < nb_slices; i++) {
1499 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1500 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1503 for (i = 0; i < nb_slices; i++) {
1504 if (init_duplicate_context(s->thread_context[i]) < 0)
1506 s->thread_context[i]->start_mb_y =
1507 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1508 s->thread_context[i]->end_mb_y =
1509 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1512 err = init_duplicate_context(s);
1516 s->end_mb_y = s->mb_height;
1518 s->slice_context_count = nb_slices;
1523 ff_mpv_common_end(s);
1527 /* init common structure for both encoder and decoder */
1528 void ff_mpv_common_end(MpegEncContext *s)
1532 if (s->slice_context_count > 1) {
1533 for (i = 0; i < s->slice_context_count; i++) {
1534 free_duplicate_context(s->thread_context[i]);
1536 for (i = 1; i < s->slice_context_count; i++) {
1537 av_freep(&s->thread_context[i]);
1539 s->slice_context_count = 1;
1540 } else free_duplicate_context(s);
1542 av_freep(&s->parse_context.buffer);
1543 s->parse_context.buffer_size = 0;
1545 av_freep(&s->bitstream_buffer);
1546 s->allocated_bitstream_buffer_size = 0;
1549 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1550 ff_free_picture_tables(&s->picture[i]);
1551 ff_mpeg_unref_picture(s, &s->picture[i]);
1552 av_frame_free(&s->picture[i].f);
1555 av_freep(&s->picture);
1556 ff_free_picture_tables(&s->last_picture);
1557 ff_mpeg_unref_picture(s, &s->last_picture);
1558 av_frame_free(&s->last_picture.f);
1559 ff_free_picture_tables(&s->current_picture);
1560 ff_mpeg_unref_picture(s, &s->current_picture);
1561 av_frame_free(&s->current_picture.f);
1562 ff_free_picture_tables(&s->next_picture);
1563 ff_mpeg_unref_picture(s, &s->next_picture);
1564 av_frame_free(&s->next_picture.f);
1565 ff_free_picture_tables(&s->new_picture);
1566 ff_mpeg_unref_picture(s, &s->new_picture);
1567 av_frame_free(&s->new_picture.f);
1569 free_context_frame(s);
1571 s->context_initialized = 0;
1572 s->last_picture_ptr =
1573 s->next_picture_ptr =
1574 s->current_picture_ptr = NULL;
1575 s->linesize = s->uvlinesize = 0;
1578 av_cold void ff_init_rl(RLTable *rl,
1579 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1581 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1582 uint8_t index_run[MAX_RUN + 1];
1583 int last, run, level, start, end, i;
1585 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1586 if (static_store && rl->max_level[0])
1589 /* compute max_level[], max_run[] and index_run[] */
1590 for (last = 0; last < 2; last++) {
1599 memset(max_level, 0, MAX_RUN + 1);
1600 memset(max_run, 0, MAX_LEVEL + 1);
1601 memset(index_run, rl->n, MAX_RUN + 1);
1602 for (i = start; i < end; i++) {
1603 run = rl->table_run[i];
1604 level = rl->table_level[i];
1605 if (index_run[run] == rl->n)
1607 if (level > max_level[run])
1608 max_level[run] = level;
1609 if (run > max_run[level])
1610 max_run[level] = run;
1613 rl->max_level[last] = static_store[last];
1615 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1616 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1618 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1620 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1621 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1623 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1625 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1626 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1630 av_cold void ff_init_vlc_rl(RLTable *rl, unsigned static_size)
1633 VLC_TYPE table[1500][2] = {{0}};
1634 VLC vlc = { .table = table, .table_allocated = static_size };
1635 av_assert0(static_size <= FF_ARRAY_ELEMS(table));
1636 init_vlc(&vlc, 9, rl->n + 1, &rl->table_vlc[0][1], 4, 2, &rl->table_vlc[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
1638 for (q = 0; q < 32; q++) {
1640 int qadd = (q - 1) | 1;
1646 for (i = 0; i < vlc.table_size; i++) {
1647 int code = vlc.table[i][0];
1648 int len = vlc.table[i][1];
1651 if (len == 0) { // illegal code
1654 } else if (len < 0) { // more bits needed
1658 if (code == rl->n) { // esc
1662 run = rl->table_run[code] + 1;
1663 level = rl->table_level[code] * qmul + qadd;
1664 if (code >= rl->last) run += 192;
1667 rl->rl_vlc[q][i].len = len;
1668 rl->rl_vlc[q][i].level = level;
1669 rl->rl_vlc[q][i].run = run;
1674 static void release_unused_pictures(MpegEncContext *s)
1678 /* release non reference frames */
1679 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1680 if (!s->picture[i].reference)
1681 ff_mpeg_unref_picture(s, &s->picture[i]);
1685 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1687 if (pic == s->last_picture_ptr)
1689 if (!pic->f->buf[0])
1691 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1696 static int find_unused_picture(MpegEncContext *s, int shared)
1701 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1702 if (!s->picture[i].f->buf[0] && &s->picture[i] != s->last_picture_ptr)
1706 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1707 if (pic_is_unused(s, &s->picture[i]))
1712 av_log(s->avctx, AV_LOG_FATAL,
1713 "Internal error, picture buffer overflow\n");
1714 /* We could return -1, but the codec would crash trying to draw into a
1715 * non-existing frame anyway. This is safer than waiting for a random crash.
1716 * Also the return of this is never useful, an encoder must only allocate
1717 * as much as allowed in the specification. This has no relationship to how
1718 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1719 * enough for such valid streams).
1720 * Plus, a decoder has to check stream validity and remove frames if too
1721 * many reference frames are around. Waiting for "OOM" is not correct at
1722 * all. Similarly, missing reference frames have to be replaced by
1723 * interpolated/MC frames, anything else is a bug in the codec ...
1729 int ff_find_unused_picture(MpegEncContext *s, int shared)
1731 int ret = find_unused_picture(s, shared);
1733 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1734 if (s->picture[ret].needs_realloc) {
1735 s->picture[ret].needs_realloc = 0;
1736 ff_free_picture_tables(&s->picture[ret]);
1737 ff_mpeg_unref_picture(s, &s->picture[ret]);
1743 static void gray_frame(AVFrame *frame)
1745 int i, h_chroma_shift, v_chroma_shift;
1747 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1749 for(i=0; i<frame->height; i++)
1750 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1751 for(i=0; i<FF_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1752 memset(frame->data[1] + frame->linesize[1]*i,
1753 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1754 memset(frame->data[2] + frame->linesize[2]*i,
1755 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1760 * generic function called after decoding
1761 * the header and before a frame is decoded.
1763 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1769 if (!ff_thread_can_start_frame(avctx)) {
1770 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1774 /* mark & release old frames */
1775 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1776 s->last_picture_ptr != s->next_picture_ptr &&
1777 s->last_picture_ptr->f->buf[0]) {
1778 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1781 /* release forgotten pictures */
1782 /* if (mpeg124/h263) */
1783 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1784 if (&s->picture[i] != s->last_picture_ptr &&
1785 &s->picture[i] != s->next_picture_ptr &&
1786 s->picture[i].reference && !s->picture[i].needs_realloc) {
1787 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1788 av_log(avctx, AV_LOG_ERROR,
1789 "releasing zombie picture\n");
1790 ff_mpeg_unref_picture(s, &s->picture[i]);
1794 ff_mpeg_unref_picture(s, &s->current_picture);
1796 release_unused_pictures(s);
1798 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1799 // we already have a unused image
1800 // (maybe it was set before reading the header)
1801 pic = s->current_picture_ptr;
1803 i = ff_find_unused_picture(s, 0);
1805 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1808 pic = &s->picture[i];
1812 if (!s->droppable) {
1813 if (s->pict_type != AV_PICTURE_TYPE_B)
1817 pic->f->coded_picture_number = s->coded_picture_number++;
1819 if (ff_alloc_picture(s, pic, 0) < 0)
1822 s->current_picture_ptr = pic;
1823 // FIXME use only the vars from current_pic
1824 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1825 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1826 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1827 if (s->picture_structure != PICT_FRAME)
1828 s->current_picture_ptr->f->top_field_first =
1829 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1831 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1832 !s->progressive_sequence;
1833 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1835 s->current_picture_ptr->f->pict_type = s->pict_type;
1836 // if (s->flags && CODEC_FLAG_QSCALE)
1837 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1838 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1840 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1841 s->current_picture_ptr)) < 0)
1844 if (s->pict_type != AV_PICTURE_TYPE_B) {
1845 s->last_picture_ptr = s->next_picture_ptr;
1847 s->next_picture_ptr = s->current_picture_ptr;
1849 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1850 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1851 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1852 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1853 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1854 s->pict_type, s->droppable);
1856 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1857 (s->pict_type != AV_PICTURE_TYPE_I ||
1858 s->picture_structure != PICT_FRAME)) {
1859 int h_chroma_shift, v_chroma_shift;
1860 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1861 &h_chroma_shift, &v_chroma_shift);
1862 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1863 av_log(avctx, AV_LOG_DEBUG,
1864 "allocating dummy last picture for B frame\n");
1865 else if (s->pict_type != AV_PICTURE_TYPE_I)
1866 av_log(avctx, AV_LOG_ERROR,
1867 "warning: first frame is no keyframe\n");
1868 else if (s->picture_structure != PICT_FRAME)
1869 av_log(avctx, AV_LOG_DEBUG,
1870 "allocate dummy last picture for field based first keyframe\n");
1872 /* Allocate a dummy frame */
1873 i = ff_find_unused_picture(s, 0);
1875 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1878 s->last_picture_ptr = &s->picture[i];
1880 s->last_picture_ptr->reference = 3;
1881 s->last_picture_ptr->f->key_frame = 0;
1882 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1884 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1885 s->last_picture_ptr = NULL;
1889 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1890 for(i=0; i<avctx->height; i++)
1891 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1892 0x80, avctx->width);
1893 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1894 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1895 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1896 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1897 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1900 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1901 for(i=0; i<avctx->height; i++)
1902 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1906 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1907 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1909 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1910 s->pict_type == AV_PICTURE_TYPE_B) {
1911 /* Allocate a dummy frame */
1912 i = ff_find_unused_picture(s, 0);
1914 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1917 s->next_picture_ptr = &s->picture[i];
1919 s->next_picture_ptr->reference = 3;
1920 s->next_picture_ptr->f->key_frame = 0;
1921 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1923 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1924 s->next_picture_ptr = NULL;
1927 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1928 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1931 #if 0 // BUFREF-FIXME
1932 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1933 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1935 if (s->last_picture_ptr) {
1936 ff_mpeg_unref_picture(s, &s->last_picture);
1937 if (s->last_picture_ptr->f->buf[0] &&
1938 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1939 s->last_picture_ptr)) < 0)
1942 if (s->next_picture_ptr) {
1943 ff_mpeg_unref_picture(s, &s->next_picture);
1944 if (s->next_picture_ptr->f->buf[0] &&
1945 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1946 s->next_picture_ptr)) < 0)
1950 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1951 s->last_picture_ptr->f->buf[0]));
1953 if (s->picture_structure!= PICT_FRAME) {
1955 for (i = 0; i < 4; i++) {
1956 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1957 s->current_picture.f->data[i] +=
1958 s->current_picture.f->linesize[i];
1960 s->current_picture.f->linesize[i] *= 2;
1961 s->last_picture.f->linesize[i] *= 2;
1962 s->next_picture.f->linesize[i] *= 2;
1966 s->err_recognition = avctx->err_recognition;
1968 /* set dequantizer, we can't do it during init as
1969 * it might change for mpeg4 and we can't do it in the header
1970 * decode as init is not called for mpeg4 there yet */
1971 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1972 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1973 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1974 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1975 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1976 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1978 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1979 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1982 if (s->avctx->debug & FF_DEBUG_NOMC) {
1983 gray_frame(s->current_picture_ptr->f);
1989 /* called after a frame has been decoded. */
1990 void ff_mpv_frame_end(MpegEncContext *s)
1994 if (s->current_picture.reference)
1995 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
2000 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
2003 return clip_line(ex, ey, sx, sy, maxx);
2008 *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
2015 *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
2023 * Draw a line from (ex, ey) -> (sx, sy).
2024 * @param w width of the image
2025 * @param h height of the image
2026 * @param stride stride/linesize of the image
2027 * @param color color of the arrow
2029 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
2030 int w, int h, int stride, int color)
2034 if (clip_line(&sx, &sy, &ex, &ey, w - 1))
2036 if (clip_line(&sy, &sx, &ey, &ex, h - 1))
2039 sx = av_clip(sx, 0, w - 1);
2040 sy = av_clip(sy, 0, h - 1);
2041 ex = av_clip(ex, 0, w - 1);
2042 ey = av_clip(ey, 0, h - 1);
2044 buf[sy * stride + sx] += color;
2046 if (FFABS(ex - sx) > FFABS(ey - sy)) {
2048 FFSWAP(int, sx, ex);
2049 FFSWAP(int, sy, ey);
2051 buf += sx + sy * stride;
2053 f = ((ey - sy) << 16) / ex;
2054 for (x = 0; x <= ex; x++) {
2056 fr = (x * f) & 0xFFFF;
2057 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
2058 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
2062 FFSWAP(int, sx, ex);
2063 FFSWAP(int, sy, ey);
2065 buf += sx + sy * stride;
2068 f = ((ex - sx) << 16) / ey;
2071 for(y= 0; y <= ey; y++){
2073 fr = (y*f) & 0xFFFF;
2074 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
2075 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
2081 * Draw an arrow from (ex, ey) -> (sx, sy).
2082 * @param w width of the image
2083 * @param h height of the image
2084 * @param stride stride/linesize of the image
2085 * @param color color of the arrow
2087 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
2088 int ey, int w, int h, int stride, int color, int tail, int direction)
2093 FFSWAP(int, sx, ex);
2094 FFSWAP(int, sy, ey);
2097 sx = av_clip(sx, -100, w + 100);
2098 sy = av_clip(sy, -100, h + 100);
2099 ex = av_clip(ex, -100, w + 100);
2100 ey = av_clip(ey, -100, h + 100);
2105 if (dx * dx + dy * dy > 3 * 3) {
2108 int length = ff_sqrt((rx * rx + ry * ry) << 8);
2110 // FIXME subpixel accuracy
2111 rx = ROUNDED_DIV(rx * 3 << 4, length);
2112 ry = ROUNDED_DIV(ry * 3 << 4, length);
2119 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
2120 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
2122 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
2126 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
2127 int dst_x, int dst_y,
2128 int src_x, int src_y,
2131 if (dst_x == src_x && dst_y == src_y)
2133 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
2134 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
2139 mb->source = direction ? 1 : -1;
2140 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
2145 * Print debugging info for the given picture.
2147 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
2148 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
2150 int mb_width, int mb_height, int mb_stride, int quarter_sample)
2152 if ((avctx->flags2 & CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
2153 const int shift = 1 + quarter_sample;
2154 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2155 const int mv_stride = (mb_width << mv_sample_log2) +
2156 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2157 int mb_x, mb_y, mbcount = 0;
2159 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
2160 * for the maximum number of MB (4 MB in case of IS_8x8) */
2161 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
2165 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2166 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2167 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
2168 for (direction = 0; direction < 2; direction++) {
2169 if (!USES_LIST(mb_type, direction))
2171 if (IS_8X8(mb_type)) {
2172 for (i = 0; i < 4; i++) {
2173 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2174 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2175 int xy = (mb_x * 2 + (i & 1) +
2176 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2177 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2178 int my = (motion_val[direction][xy][1] >> shift) + sy;
2179 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
2181 } else if (IS_16X8(mb_type)) {
2182 for (i = 0; i < 2; i++) {
2183 int sx = mb_x * 16 + 8;
2184 int sy = mb_y * 16 + 4 + 8 * i;
2185 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2186 int mx = (motion_val[direction][xy][0] >> shift);
2187 int my = (motion_val[direction][xy][1] >> shift);
2189 if (IS_INTERLACED(mb_type))
2192 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
2194 } else if (IS_8X16(mb_type)) {
2195 for (i = 0; i < 2; i++) {
2196 int sx = mb_x * 16 + 4 + 8 * i;
2197 int sy = mb_y * 16 + 8;
2198 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2199 int mx = motion_val[direction][xy][0] >> shift;
2200 int my = motion_val[direction][xy][1] >> shift;
2202 if (IS_INTERLACED(mb_type))
2205 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
2208 int sx = mb_x * 16 + 8;
2209 int sy = mb_y * 16 + 8;
2210 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
2211 int mx = (motion_val[direction][xy][0]>>shift) + sx;
2212 int my = (motion_val[direction][xy][1]>>shift) + sy;
2213 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
2220 AVFrameSideData *sd;
2222 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
2223 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
2226 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
2232 /* TODO: export all the following to make them accessible for users (and filters) */
2233 if (avctx->hwaccel || !mbtype_table
2234 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
2238 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
2241 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
2242 av_get_picture_type_char(pict->pict_type));
2243 for (y = 0; y < mb_height; y++) {
2244 for (x = 0; x < mb_width; x++) {
2245 if (avctx->debug & FF_DEBUG_SKIP) {
2246 int count = mbskip_table[x + y * mb_stride];
2249 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
2251 if (avctx->debug & FF_DEBUG_QP) {
2252 av_log(avctx, AV_LOG_DEBUG, "%2d",
2253 qscale_table[x + y * mb_stride]);
2255 if (avctx->debug & FF_DEBUG_MB_TYPE) {
2256 int mb_type = mbtype_table[x + y * mb_stride];
2257 // Type & MV direction
2258 if (IS_PCM(mb_type))
2259 av_log(avctx, AV_LOG_DEBUG, "P");
2260 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
2261 av_log(avctx, AV_LOG_DEBUG, "A");
2262 else if (IS_INTRA4x4(mb_type))
2263 av_log(avctx, AV_LOG_DEBUG, "i");
2264 else if (IS_INTRA16x16(mb_type))
2265 av_log(avctx, AV_LOG_DEBUG, "I");
2266 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
2267 av_log(avctx, AV_LOG_DEBUG, "d");
2268 else if (IS_DIRECT(mb_type))
2269 av_log(avctx, AV_LOG_DEBUG, "D");
2270 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
2271 av_log(avctx, AV_LOG_DEBUG, "g");
2272 else if (IS_GMC(mb_type))
2273 av_log(avctx, AV_LOG_DEBUG, "G");
2274 else if (IS_SKIP(mb_type))
2275 av_log(avctx, AV_LOG_DEBUG, "S");
2276 else if (!USES_LIST(mb_type, 1))
2277 av_log(avctx, AV_LOG_DEBUG, ">");
2278 else if (!USES_LIST(mb_type, 0))
2279 av_log(avctx, AV_LOG_DEBUG, "<");
2281 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2282 av_log(avctx, AV_LOG_DEBUG, "X");
2286 if (IS_8X8(mb_type))
2287 av_log(avctx, AV_LOG_DEBUG, "+");
2288 else if (IS_16X8(mb_type))
2289 av_log(avctx, AV_LOG_DEBUG, "-");
2290 else if (IS_8X16(mb_type))
2291 av_log(avctx, AV_LOG_DEBUG, "|");
2292 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
2293 av_log(avctx, AV_LOG_DEBUG, " ");
2295 av_log(avctx, AV_LOG_DEBUG, "?");
2298 if (IS_INTERLACED(mb_type))
2299 av_log(avctx, AV_LOG_DEBUG, "=");
2301 av_log(avctx, AV_LOG_DEBUG, " ");
2304 av_log(avctx, AV_LOG_DEBUG, "\n");
2308 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
2309 (avctx->debug_mv)) {
2312 int h_chroma_shift, v_chroma_shift, block_height;
2314 const int shift = 1 + quarter_sample;
2316 const int width = avctx->width;
2317 const int height = avctx->height;
2319 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2320 const int mv_stride = (mb_width << mv_sample_log2) +
2321 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2323 *low_delay = 0; // needed to see the vectors without trashing the buffers
2325 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
2327 av_frame_make_writable(pict);
2329 pict->opaque = NULL;
2331 ptr = pict->data[0];
2333 block_height = 16 >> v_chroma_shift;
2335 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2337 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2338 const int mb_index = mb_x + mb_y * mb_stride;
2340 if ((avctx->debug_mv) && motion_val[0]) {
2342 for (type = 0; type < 3; type++) {
2346 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
2347 (pict->pict_type!= AV_PICTURE_TYPE_P))
2352 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
2353 (pict->pict_type!= AV_PICTURE_TYPE_B))
2358 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2359 (pict->pict_type!= AV_PICTURE_TYPE_B))
2364 if (!USES_LIST(mbtype_table[mb_index], direction))
2367 if (IS_8X8(mbtype_table[mb_index])) {
2369 for (i = 0; i < 4; i++) {
2370 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2371 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2372 int xy = (mb_x * 2 + (i & 1) +
2373 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2374 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2375 int my = (motion_val[direction][xy][1] >> shift) + sy;
2376 draw_arrow(ptr, sx, sy, mx, my, width,
2377 height, pict->linesize[0], 100, 0, direction);
2379 } else if (IS_16X8(mbtype_table[mb_index])) {
2381 for (i = 0; i < 2; i++) {
2382 int sx = mb_x * 16 + 8;
2383 int sy = mb_y * 16 + 4 + 8 * i;
2384 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2385 int mx = (motion_val[direction][xy][0] >> shift);
2386 int my = (motion_val[direction][xy][1] >> shift);
2388 if (IS_INTERLACED(mbtype_table[mb_index]))
2391 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2392 height, pict->linesize[0], 100, 0, direction);
2394 } else if (IS_8X16(mbtype_table[mb_index])) {
2396 for (i = 0; i < 2; i++) {
2397 int sx = mb_x * 16 + 4 + 8 * i;
2398 int sy = mb_y * 16 + 8;
2399 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2400 int mx = motion_val[direction][xy][0] >> shift;
2401 int my = motion_val[direction][xy][1] >> shift;
2403 if (IS_INTERLACED(mbtype_table[mb_index]))
2406 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2407 height, pict->linesize[0], 100, 0, direction);
2410 int sx= mb_x * 16 + 8;
2411 int sy= mb_y * 16 + 8;
2412 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2413 int mx= (motion_val[direction][xy][0]>>shift) + sx;
2414 int my= (motion_val[direction][xy][1]>>shift) + sy;
2415 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
2420 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2421 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
2422 0x0101010101010101ULL;
2424 for (y = 0; y < block_height; y++) {
2425 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2426 (block_height * mb_y + y) *
2427 pict->linesize[1]) = c;
2428 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2429 (block_height * mb_y + y) *
2430 pict->linesize[2]) = c;
2433 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2435 int mb_type = mbtype_table[mb_index];
2438 #define COLOR(theta, r) \
2439 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2440 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2444 if (IS_PCM(mb_type)) {
2446 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2447 IS_INTRA16x16(mb_type)) {
2449 } else if (IS_INTRA4x4(mb_type)) {
2451 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2453 } else if (IS_DIRECT(mb_type)) {
2455 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2457 } else if (IS_GMC(mb_type)) {
2459 } else if (IS_SKIP(mb_type)) {
2461 } else if (!USES_LIST(mb_type, 1)) {
2463 } else if (!USES_LIST(mb_type, 0)) {
2466 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2470 u *= 0x0101010101010101ULL;
2471 v *= 0x0101010101010101ULL;
2472 for (y = 0; y < block_height; y++) {
2473 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2474 (block_height * mb_y + y) * pict->linesize[1]) = u;
2475 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2476 (block_height * mb_y + y) * pict->linesize[2]) = v;
2480 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2481 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2482 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2483 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2484 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2486 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2487 for (y = 0; y < 16; y++)
2488 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2489 pict->linesize[0]] ^= 0x80;
2491 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2492 int dm = 1 << (mv_sample_log2 - 2);
2493 for (i = 0; i < 4; i++) {
2494 int sx = mb_x * 16 + 8 * (i & 1);
2495 int sy = mb_y * 16 + 8 * (i >> 1);
2496 int xy = (mb_x * 2 + (i & 1) +
2497 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2499 int32_t *mv = (int32_t *) &motion_val[0][xy];
2500 if (mv[0] != mv[dm] ||
2501 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2502 for (y = 0; y < 8; y++)
2503 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2504 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2505 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2506 pict->linesize[0]) ^= 0x8080808080808080ULL;
2510 if (IS_INTERLACED(mb_type) &&
2511 avctx->codec->id == AV_CODEC_ID_H264) {
2515 mbskip_table[mb_index] = 0;
2521 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2523 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
2524 p->qscale_table, p->motion_val, &s->low_delay,
2525 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2528 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2530 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2531 int offset = 2*s->mb_stride + 1;
2533 return AVERROR(ENOMEM);
2534 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2535 ref->size -= offset;
2536 ref->data += offset;
2537 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2540 static inline int hpel_motion_lowres(MpegEncContext *s,
2541 uint8_t *dest, uint8_t *src,
2542 int field_based, int field_select,
2543 int src_x, int src_y,
2544 int width, int height, ptrdiff_t stride,
2545 int h_edge_pos, int v_edge_pos,
2546 int w, int h, h264_chroma_mc_func *pix_op,
2547 int motion_x, int motion_y)
2549 const int lowres = s->avctx->lowres;
2550 const int op_index = FFMIN(lowres, 3);
2551 const int s_mask = (2 << lowres) - 1;
2555 if (s->quarter_sample) {
2560 sx = motion_x & s_mask;
2561 sy = motion_y & s_mask;
2562 src_x += motion_x >> lowres + 1;
2563 src_y += motion_y >> lowres + 1;
2565 src += src_y * stride + src_x;
2567 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2568 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2569 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
2570 s->linesize, s->linesize,
2571 w + 1, (h + 1) << field_based,
2572 src_x, src_y << field_based,
2573 h_edge_pos, v_edge_pos);
2574 src = s->edge_emu_buffer;
2578 sx = (sx << 2) >> lowres;
2579 sy = (sy << 2) >> lowres;
2582 pix_op[op_index](dest, src, stride, h, sx, sy);
2586 /* apply one mpeg motion vector to the three components */
2587 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2594 uint8_t **ref_picture,
2595 h264_chroma_mc_func *pix_op,
2596 int motion_x, int motion_y,
2599 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2600 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2601 ptrdiff_t uvlinesize, linesize;
2602 const int lowres = s->avctx->lowres;
2603 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2604 const int block_s = 8>>lowres;
2605 const int s_mask = (2 << lowres) - 1;
2606 const int h_edge_pos = s->h_edge_pos >> lowres;
2607 const int v_edge_pos = s->v_edge_pos >> lowres;
2608 linesize = s->current_picture.f->linesize[0] << field_based;
2609 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2611 // FIXME obviously not perfect but qpel will not work in lowres anyway
2612 if (s->quarter_sample) {
2618 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2621 sx = motion_x & s_mask;
2622 sy = motion_y & s_mask;
2623 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2624 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2626 if (s->out_format == FMT_H263) {
2627 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2628 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2629 uvsrc_x = src_x >> 1;
2630 uvsrc_y = src_y >> 1;
2631 } else if (s->out_format == FMT_H261) {
2632 // even chroma mv's are full pel in H261
2635 uvsx = (2 * mx) & s_mask;
2636 uvsy = (2 * my) & s_mask;
2637 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2638 uvsrc_y = mb_y * block_s + (my >> lowres);
2640 if(s->chroma_y_shift){
2645 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2646 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2648 if(s->chroma_x_shift){
2652 uvsy = motion_y & s_mask;
2654 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2657 uvsx = motion_x & s_mask;
2658 uvsy = motion_y & s_mask;
2665 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2666 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2667 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2669 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2670 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2671 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2672 linesize >> field_based, linesize >> field_based,
2673 17, 17 + field_based,
2674 src_x, src_y << field_based, h_edge_pos,
2676 ptr_y = s->edge_emu_buffer;
2677 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2678 uint8_t *ubuf = s->edge_emu_buffer + 18 * s->linesize;
2679 uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
2680 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2681 uvlinesize >> field_based, uvlinesize >> field_based,
2683 uvsrc_x, uvsrc_y << field_based,
2684 h_edge_pos >> 1, v_edge_pos >> 1);
2685 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2686 uvlinesize >> field_based,uvlinesize >> field_based,
2688 uvsrc_x, uvsrc_y << field_based,
2689 h_edge_pos >> 1, v_edge_pos >> 1);
2695 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2697 dest_y += s->linesize;
2698 dest_cb += s->uvlinesize;
2699 dest_cr += s->uvlinesize;
2703 ptr_y += s->linesize;
2704 ptr_cb += s->uvlinesize;
2705 ptr_cr += s->uvlinesize;
2708 sx = (sx << 2) >> lowres;
2709 sy = (sy << 2) >> lowres;
2710 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2712 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2713 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2714 uvsx = (uvsx << 2) >> lowres;
2715 uvsy = (uvsy << 2) >> lowres;
2717 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2718 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2721 // FIXME h261 lowres loop filter
2724 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2725 uint8_t *dest_cb, uint8_t *dest_cr,
2726 uint8_t **ref_picture,
2727 h264_chroma_mc_func * pix_op,
2730 const int lowres = s->avctx->lowres;
2731 const int op_index = FFMIN(lowres, 3);
2732 const int block_s = 8 >> lowres;
2733 const int s_mask = (2 << lowres) - 1;
2734 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2735 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2736 int emu = 0, src_x, src_y, sx, sy;
2740 if (s->quarter_sample) {
2745 /* In case of 8X8, we construct a single chroma motion vector
2746 with a special rounding */
2747 mx = ff_h263_round_chroma(mx);
2748 my = ff_h263_round_chroma(my);
2752 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2753 src_y = s->mb_y * block_s + (my >> lowres + 1);
2755 offset = src_y * s->uvlinesize + src_x;
2756 ptr = ref_picture[1] + offset;
2757 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2758 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2759 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2760 s->uvlinesize, s->uvlinesize,
2762 src_x, src_y, h_edge_pos, v_edge_pos);
2763 ptr = s->edge_emu_buffer;
2766 sx = (sx << 2) >> lowres;
2767 sy = (sy << 2) >> lowres;
2768 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2770 ptr = ref_picture[2] + offset;
2772 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2773 s->uvlinesize, s->uvlinesize,
2775 src_x, src_y, h_edge_pos, v_edge_pos);
2776 ptr = s->edge_emu_buffer;
2778 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2782 * motion compensation of a single macroblock
2784 * @param dest_y luma destination pointer
2785 * @param dest_cb chroma cb/u destination pointer
2786 * @param dest_cr chroma cr/v destination pointer
2787 * @param dir direction (0->forward, 1->backward)
2788 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2789 * @param pix_op halfpel motion compensation function (average or put normally)
2790 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2792 static inline void MPV_motion_lowres(MpegEncContext *s,
2793 uint8_t *dest_y, uint8_t *dest_cb,
2795 int dir, uint8_t **ref_picture,
2796 h264_chroma_mc_func *pix_op)
2800 const int lowres = s->avctx->lowres;
2801 const int block_s = 8 >>lowres;
2806 switch (s->mv_type) {
2808 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2810 ref_picture, pix_op,
2811 s->mv[dir][0][0], s->mv[dir][0][1],
2817 for (i = 0; i < 4; i++) {
2818 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2819 s->linesize) * block_s,
2820 ref_picture[0], 0, 0,
2821 (2 * mb_x + (i & 1)) * block_s,
2822 (2 * mb_y + (i >> 1)) * block_s,
2823 s->width, s->height, s->linesize,
2824 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2825 block_s, block_s, pix_op,
2826 s->mv[dir][i][0], s->mv[dir][i][1]);
2828 mx += s->mv[dir][i][0];
2829 my += s->mv[dir][i][1];
2832 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2833 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2837 if (s->picture_structure == PICT_FRAME) {
2839 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2840 1, 0, s->field_select[dir][0],
2841 ref_picture, pix_op,
2842 s->mv[dir][0][0], s->mv[dir][0][1],
2845 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2846 1, 1, s->field_select[dir][1],
2847 ref_picture, pix_op,
2848 s->mv[dir][1][0], s->mv[dir][1][1],
2851 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2852 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2853 ref_picture = s->current_picture_ptr->f->data;
2856 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2857 0, 0, s->field_select[dir][0],
2858 ref_picture, pix_op,
2860 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2864 for (i = 0; i < 2; i++) {
2865 uint8_t **ref2picture;
2867 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2868 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2869 ref2picture = ref_picture;
2871 ref2picture = s->current_picture_ptr->f->data;
2874 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2875 0, 0, s->field_select[dir][i],
2876 ref2picture, pix_op,
2877 s->mv[dir][i][0], s->mv[dir][i][1] +
2878 2 * block_s * i, block_s, mb_y >> 1);
2880 dest_y += 2 * block_s * s->linesize;
2881 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2882 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2886 if (s->picture_structure == PICT_FRAME) {
2887 for (i = 0; i < 2; i++) {
2889 for (j = 0; j < 2; j++) {
2890 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2892 ref_picture, pix_op,
2893 s->mv[dir][2 * i + j][0],
2894 s->mv[dir][2 * i + j][1],
2897 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2900 for (i = 0; i < 2; i++) {
2901 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2902 0, 0, s->picture_structure != i + 1,
2903 ref_picture, pix_op,
2904 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2905 2 * block_s, mb_y >> 1);
2907 // after put we make avg of the same block
2908 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2910 // opposite parity is always in the same
2911 // frame if this is second field
2912 if (!s->first_field) {
2913 ref_picture = s->current_picture_ptr->f->data;
2924 * find the lowest MB row referenced in the MVs
2926 int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
2928 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2929 int my, off, i, mvs;
2931 if (s->picture_structure != PICT_FRAME || s->mcsel)
2934 switch (s->mv_type) {
2948 for (i = 0; i < mvs; i++) {
2949 my = s->mv[dir][i][1]<<qpel_shift;
2950 my_max = FFMAX(my_max, my);
2951 my_min = FFMIN(my_min, my);
2954 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2956 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2958 return s->mb_height-1;
2961 /* put block[] to dest[] */
2962 static inline void put_dct(MpegEncContext *s,
2963 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2965 s->dct_unquantize_intra(s, block, i, qscale);
2966 s->idsp.idct_put(dest, line_size, block);
2969 /* add block[] to dest[] */
2970 static inline void add_dct(MpegEncContext *s,
2971 int16_t *block, int i, uint8_t *dest, int line_size)
2973 if (s->block_last_index[i] >= 0) {
2974 s->idsp.idct_add(dest, line_size, block);
2978 static inline void add_dequant_dct(MpegEncContext *s,
2979 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2981 if (s->block_last_index[i] >= 0) {
2982 s->dct_unquantize_inter(s, block, i, qscale);
2984 s->idsp.idct_add(dest, line_size, block);
2989 * Clean dc, ac, coded_block for the current non-intra MB.
2991 void ff_clean_intra_table_entries(MpegEncContext *s)
2993 int wrap = s->b8_stride;
2994 int xy = s->block_index[0];
2997 s->dc_val[0][xy + 1 ] =
2998 s->dc_val[0][xy + wrap] =
2999 s->dc_val[0][xy + 1 + wrap] = 1024;
3001 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
3002 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
3003 if (s->msmpeg4_version>=3) {
3004 s->coded_block[xy ] =
3005 s->coded_block[xy + 1 ] =
3006 s->coded_block[xy + wrap] =
3007 s->coded_block[xy + 1 + wrap] = 0;
3010 wrap = s->mb_stride;
3011 xy = s->mb_x + s->mb_y * wrap;
3013 s->dc_val[2][xy] = 1024;
3015 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
3016 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
3018 s->mbintra_table[xy]= 0;
3021 /* generic function called after a macroblock has been parsed by the
3022 decoder or after it has been encoded by the encoder.
3024 Important variables used:
3025 s->mb_intra : true if intra macroblock
3026 s->mv_dir : motion vector direction
3027 s->mv_type : motion vector type
3028 s->mv : motion vector
3029 s->interlaced_dct : true if interlaced dct used (mpeg2)
3031 static av_always_inline
3032 void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
3033 int lowres_flag, int is_mpeg12)
3035 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
3038 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
3039 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
3043 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
3044 /* print DCT coefficients */
3046 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
3048 for(j=0; j<64; j++){
3049 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
3050 block[i][s->idsp.idct_permutation[j]]);
3052 av_log(s->avctx, AV_LOG_DEBUG, "\n");
3056 s->current_picture.qscale_table[mb_xy] = s->qscale;
3058 /* update DC predictors for P macroblocks */
3060 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
3061 if(s->mbintra_table[mb_xy])
3062 ff_clean_intra_table_entries(s);
3066 s->last_dc[2] = 128 << s->intra_dc_precision;
3069 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
3070 s->mbintra_table[mb_xy]=1;
3072 if ( (s->flags&CODEC_FLAG_PSNR)
3073 || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor
3074 || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
3075 uint8_t *dest_y, *dest_cb, *dest_cr;
3076 int dct_linesize, dct_offset;
3077 op_pixels_func (*op_pix)[4];
3078 qpel_mc_func (*op_qpix)[16];
3079 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3080 const int uvlinesize = s->current_picture.f->linesize[1];
3081 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
3082 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
3084 /* avoid copy if macroblock skipped in last frame too */
3085 /* skip only during decoding as we might trash the buffers during encoding a bit */
3087 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
3089 if (s->mb_skipped) {
3091 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
3093 } else if(!s->current_picture.reference) {
3096 *mbskip_ptr = 0; /* not skipped */
3100 dct_linesize = linesize << s->interlaced_dct;
3101 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
3105 dest_cb= s->dest[1];
3106 dest_cr= s->dest[2];
3108 dest_y = s->b_scratchpad;
3109 dest_cb= s->b_scratchpad+16*linesize;
3110 dest_cr= s->b_scratchpad+32*linesize;
3114 /* motion handling */
3115 /* decoding or more than one mb_type (MC was already done otherwise) */
3118 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
3119 if (s->mv_dir & MV_DIR_FORWARD) {
3120 ff_thread_await_progress(&s->last_picture_ptr->tf,
3121 ff_mpv_lowest_referenced_row(s, 0),
3124 if (s->mv_dir & MV_DIR_BACKWARD) {
3125 ff_thread_await_progress(&s->next_picture_ptr->tf,
3126 ff_mpv_lowest_referenced_row(s, 1),
3132 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
3134 if (s->mv_dir & MV_DIR_FORWARD) {
3135 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
3136 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
3138 if (s->mv_dir & MV_DIR_BACKWARD) {
3139 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
3142 op_qpix = s->me.qpel_put;
3143 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
3144 op_pix = s->hdsp.put_pixels_tab;
3146 op_pix = s->hdsp.put_no_rnd_pixels_tab;
3148 if (s->mv_dir & MV_DIR_FORWARD) {
3149 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
3150 op_pix = s->hdsp.avg_pixels_tab;
3151 op_qpix= s->me.qpel_avg;
3153 if (s->mv_dir & MV_DIR_BACKWARD) {
3154 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
3159 /* skip dequant / idct if we are really late ;) */
3160 if(s->avctx->skip_idct){
3161 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
3162 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
3163 || s->avctx->skip_idct >= AVDISCARD_ALL)
3167 /* add dct residue */
3168 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
3169 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
3170 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
3171 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
3172 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
3173 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
3175 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3176 if (s->chroma_y_shift){
3177 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
3178 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
3182 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
3183 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
3184 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3185 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
3188 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
3189 add_dct(s, block[0], 0, dest_y , dct_linesize);
3190 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
3191 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
3192 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
3194 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3195 if(s->chroma_y_shift){//Chroma420
3196 add_dct(s, block[4], 4, dest_cb, uvlinesize);
3197 add_dct(s, block[5], 5, dest_cr, uvlinesize);
3200 dct_linesize = uvlinesize << s->interlaced_dct;
3201 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3203 add_dct(s, block[4], 4, dest_cb, dct_linesize);
3204 add_dct(s, block[5], 5, dest_cr, dct_linesize);
3205 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
3206 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
3207 if(!s->chroma_x_shift){//Chroma444
3208 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
3209 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
3210 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
3211 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
3216 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
3217 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
3220 /* dct only in intra block */
3221 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
3222 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
3223 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
3224 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
3225 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
3227 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3228 if(s->chroma_y_shift){
3229 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
3230 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
3234 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
3235 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
3236 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3237 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
3241 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
3242 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
3243 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
3244 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
3246 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3247 if(s->chroma_y_shift){
3248 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
3249 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
3252 dct_linesize = uvlinesize << s->interlaced_dct;
3253 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3255 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
3256 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
3257 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
3258 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
3259 if(!s->chroma_x_shift){//Chroma444
3260 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
3261 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
3262 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
3263 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
3271 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
3272 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
3273 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
3278 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
3281 if(s->out_format == FMT_MPEG1) {
3282 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 1);
3283 else mpv_decode_mb_internal(s, block, 0, 1);
3286 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 0);
3287 else mpv_decode_mb_internal(s, block, 0, 0);
3290 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
3292 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
3293 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
3294 s->first_field, s->low_delay);
3297 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3298 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3299 const int uvlinesize = s->current_picture.f->linesize[1];
3300 const int mb_size= 4 - s->avctx->lowres;
3302 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3303 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3304 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3305 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3306 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3307 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;
3308 //block_index is not used by mpeg2, so it is not affected by chroma_format
3310 s->dest[0] = s->current_picture.f->data[0] + ((s->mb_x - 1) << mb_size);
3311 s->dest[1] = s->current_picture.f->data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3312 s->dest[2] = s->current_picture.f->data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3314 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3316 if(s->picture_structure==PICT_FRAME){
3317 s->dest[0] += s->mb_y * linesize << mb_size;
3318 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3319 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3321 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3322 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3323 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3324 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3330 * Permute an 8x8 block.
3331 * @param block the block which will be permuted according to the given permutation vector
3332 * @param permutation the permutation vector
3333 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3334 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3335 * (inverse) permutated to scantable order!
3337 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3343 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3345 for(i=0; i<=last; i++){
3346 const int j= scantable[i];
3351 for(i=0; i<=last; i++){
3352 const int j= scantable[i];
3353 const int perm_j= permutation[j];
3354 block[perm_j]= temp[j];
3358 void ff_mpeg_flush(AVCodecContext *avctx){
3360 MpegEncContext *s = avctx->priv_data;
3362 if (!s || !s->picture)
3365 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3366 ff_mpeg_unref_picture(s, &s->picture[i]);
3367 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3369 ff_mpeg_unref_picture(s, &s->current_picture);
3370 ff_mpeg_unref_picture(s, &s->last_picture);
3371 ff_mpeg_unref_picture(s, &s->next_picture);
3373 s->mb_x= s->mb_y= 0;
3376 s->parse_context.state= -1;
3377 s->parse_context.frame_start_found= 0;
3378 s->parse_context.overread= 0;
3379 s->parse_context.overread_index= 0;
3380 s->parse_context.index= 0;
3381 s->parse_context.last_index= 0;
3382 s->bitstream_buffer_size=0;
3387 * set qscale and update qscale dependent variables.
3389 void ff_set_qscale(MpegEncContext * s, int qscale)
3393 else if (qscale > 31)
3397 s->chroma_qscale= s->chroma_qscale_table[qscale];
3399 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3400 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3403 void ff_mpv_report_decode_progress(MpegEncContext *s)
3405 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3406 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);