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 static int init_er(MpegEncContext *s)
1114 ERContext *er = &s->er;
1115 int mb_array_size = s->mb_height * s->mb_stride;
1118 er->avctx = s->avctx;
1119 er->mecc = &s->mecc;
1121 er->mb_index2xy = s->mb_index2xy;
1122 er->mb_num = s->mb_num;
1123 er->mb_width = s->mb_width;
1124 er->mb_height = s->mb_height;
1125 er->mb_stride = s->mb_stride;
1126 er->b8_stride = s->b8_stride;
1128 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
1129 er->error_status_table = av_mallocz(mb_array_size);
1130 if (!er->er_temp_buffer || !er->error_status_table)
1133 er->mbskip_table = s->mbskip_table;
1134 er->mbintra_table = s->mbintra_table;
1136 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
1137 er->dc_val[i] = s->dc_val[i];
1139 er->decode_mb = mpeg_er_decode_mb;
1144 av_freep(&er->er_temp_buffer);
1145 av_freep(&er->error_status_table);
1146 return AVERROR(ENOMEM);
1150 * Initialize and allocates MpegEncContext fields dependent on the resolution.
1152 static int init_context_frame(MpegEncContext *s)
1154 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
1156 s->mb_width = (s->width + 15) / 16;
1157 s->mb_stride = s->mb_width + 1;
1158 s->b8_stride = s->mb_width * 2 + 1;
1159 mb_array_size = s->mb_height * s->mb_stride;
1160 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
1162 /* set default edge pos, will be overridden
1163 * in decode_header if needed */
1164 s->h_edge_pos = s->mb_width * 16;
1165 s->v_edge_pos = s->mb_height * 16;
1167 s->mb_num = s->mb_width * s->mb_height;
1172 s->block_wrap[3] = s->b8_stride;
1174 s->block_wrap[5] = s->mb_stride;
1176 y_size = s->b8_stride * (2 * s->mb_height + 1);
1177 c_size = s->mb_stride * (s->mb_height + 1);
1178 yc_size = y_size + 2 * c_size;
1180 if (s->mb_height & 1)
1181 yc_size += 2*s->b8_stride + 2*s->mb_stride;
1183 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
1184 for (y = 0; y < s->mb_height; y++)
1185 for (x = 0; x < s->mb_width; x++)
1186 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
1188 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
1191 /* Allocate MV tables */
1192 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1193 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1194 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1195 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1196 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1197 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
1198 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
1199 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
1200 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
1201 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
1202 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
1203 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
1205 /* Allocate MB type table */
1206 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
1208 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
1210 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
1211 mb_array_size * sizeof(float), fail);
1212 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
1213 mb_array_size * sizeof(float), fail);
1217 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
1218 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
1219 /* interlaced direct mode decoding tables */
1220 for (i = 0; i < 2; i++) {
1222 for (j = 0; j < 2; j++) {
1223 for (k = 0; k < 2; k++) {
1224 FF_ALLOCZ_OR_GOTO(s->avctx,
1225 s->b_field_mv_table_base[i][j][k],
1226 mv_table_size * 2 * sizeof(int16_t),
1228 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
1231 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
1232 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
1233 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
1235 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
1238 if (s->out_format == FMT_H263) {
1240 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride, fail);
1241 s->coded_block = s->coded_block_base + s->b8_stride + 1;
1243 /* cbp, ac_pred, pred_dir */
1244 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
1245 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
1248 if (s->h263_pred || s->h263_plus || !s->encoding) {
1250 // MN: we need these for error resilience of intra-frames
1251 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
1252 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
1253 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
1254 s->dc_val[2] = s->dc_val[1] + c_size;
1255 for (i = 0; i < yc_size; i++)
1256 s->dc_val_base[i] = 1024;
1259 /* which mb is a intra block */
1260 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
1261 memset(s->mbintra_table, 1, mb_array_size);
1263 /* init macroblock skip table */
1264 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
1265 // Note the + 1 is for a quicker mpeg4 slice_end detection
1269 return AVERROR(ENOMEM);
1273 * init common structure for both encoder and decoder.
1274 * this assumes that some variables like width/height are already set
1276 av_cold int ff_mpv_common_init(MpegEncContext *s)
1279 int nb_slices = (HAVE_THREADS &&
1280 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
1281 s->avctx->thread_count : 1;
1283 if (s->encoding && s->avctx->slices)
1284 nb_slices = s->avctx->slices;
1286 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1287 s->mb_height = (s->height + 31) / 32 * 2;
1289 s->mb_height = (s->height + 15) / 16;
1291 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1292 av_log(s->avctx, AV_LOG_ERROR,
1293 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1297 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1300 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1302 max_slices = MAX_THREADS;
1303 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1304 " reducing to %d\n", nb_slices, max_slices);
1305 nb_slices = max_slices;
1308 if ((s->width || s->height) &&
1309 av_image_check_size(s->width, s->height, 0, s->avctx))
1314 s->flags = s->avctx->flags;
1315 s->flags2 = s->avctx->flags2;
1317 /* set chroma shifts */
1318 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
1320 &s->chroma_y_shift);
1322 /* convert fourcc to upper case */
1323 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
1325 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
1327 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1328 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1329 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1330 s->picture[i].f = av_frame_alloc();
1331 if (!s->picture[i].f)
1334 memset(&s->next_picture, 0, sizeof(s->next_picture));
1335 memset(&s->last_picture, 0, sizeof(s->last_picture));
1336 memset(&s->current_picture, 0, sizeof(s->current_picture));
1337 memset(&s->new_picture, 0, sizeof(s->new_picture));
1338 s->next_picture.f = av_frame_alloc();
1339 if (!s->next_picture.f)
1341 s->last_picture.f = av_frame_alloc();
1342 if (!s->last_picture.f)
1344 s->current_picture.f = av_frame_alloc();
1345 if (!s->current_picture.f)
1347 s->new_picture.f = av_frame_alloc();
1348 if (!s->new_picture.f)
1351 if (init_context_frame(s))
1354 s->parse_context.state = -1;
1356 s->context_initialized = 1;
1357 s->thread_context[0] = s;
1359 // if (s->width && s->height) {
1360 if (nb_slices > 1) {
1361 for (i = 1; i < nb_slices; i++) {
1362 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1363 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1366 for (i = 0; i < nb_slices; i++) {
1367 if (init_duplicate_context(s->thread_context[i]) < 0)
1369 s->thread_context[i]->start_mb_y =
1370 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1371 s->thread_context[i]->end_mb_y =
1372 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1375 if (init_duplicate_context(s) < 0)
1378 s->end_mb_y = s->mb_height;
1380 s->slice_context_count = nb_slices;
1385 ff_mpv_common_end(s);
1390 * Frees and resets MpegEncContext fields depending on the resolution.
1391 * Is used during resolution changes to avoid a full reinitialization of the
1394 static int free_context_frame(MpegEncContext *s)
1398 av_freep(&s->mb_type);
1399 av_freep(&s->p_mv_table_base);
1400 av_freep(&s->b_forw_mv_table_base);
1401 av_freep(&s->b_back_mv_table_base);
1402 av_freep(&s->b_bidir_forw_mv_table_base);
1403 av_freep(&s->b_bidir_back_mv_table_base);
1404 av_freep(&s->b_direct_mv_table_base);
1405 s->p_mv_table = NULL;
1406 s->b_forw_mv_table = NULL;
1407 s->b_back_mv_table = NULL;
1408 s->b_bidir_forw_mv_table = NULL;
1409 s->b_bidir_back_mv_table = NULL;
1410 s->b_direct_mv_table = NULL;
1411 for (i = 0; i < 2; i++) {
1412 for (j = 0; j < 2; j++) {
1413 for (k = 0; k < 2; k++) {
1414 av_freep(&s->b_field_mv_table_base[i][j][k]);
1415 s->b_field_mv_table[i][j][k] = NULL;
1417 av_freep(&s->b_field_select_table[i][j]);
1418 av_freep(&s->p_field_mv_table_base[i][j]);
1419 s->p_field_mv_table[i][j] = NULL;
1421 av_freep(&s->p_field_select_table[i]);
1424 av_freep(&s->dc_val_base);
1425 av_freep(&s->coded_block_base);
1426 av_freep(&s->mbintra_table);
1427 av_freep(&s->cbp_table);
1428 av_freep(&s->pred_dir_table);
1430 av_freep(&s->mbskip_table);
1432 av_freep(&s->er.error_status_table);
1433 av_freep(&s->er.er_temp_buffer);
1434 av_freep(&s->mb_index2xy);
1435 av_freep(&s->lambda_table);
1437 av_freep(&s->cplx_tab);
1438 av_freep(&s->bits_tab);
1440 s->linesize = s->uvlinesize = 0;
1445 int ff_mpv_common_frame_size_change(MpegEncContext *s)
1449 if (s->slice_context_count > 1) {
1450 for (i = 0; i < s->slice_context_count; i++) {
1451 free_duplicate_context(s->thread_context[i]);
1453 for (i = 1; i < s->slice_context_count; i++) {
1454 av_freep(&s->thread_context[i]);
1457 free_duplicate_context(s);
1459 if ((err = free_context_frame(s)) < 0)
1463 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1464 s->picture[i].needs_realloc = 1;
1467 s->last_picture_ptr =
1468 s->next_picture_ptr =
1469 s->current_picture_ptr = NULL;
1472 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1473 s->mb_height = (s->height + 31) / 32 * 2;
1475 s->mb_height = (s->height + 15) / 16;
1477 if ((s->width || s->height) &&
1478 av_image_check_size(s->width, s->height, 0, s->avctx))
1479 return AVERROR_INVALIDDATA;
1481 if ((err = init_context_frame(s)))
1484 s->thread_context[0] = s;
1486 if (s->width && s->height) {
1487 int nb_slices = s->slice_context_count;
1488 if (nb_slices > 1) {
1489 for (i = 1; i < nb_slices; i++) {
1490 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1491 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1494 for (i = 0; i < nb_slices; i++) {
1495 if (init_duplicate_context(s->thread_context[i]) < 0)
1497 s->thread_context[i]->start_mb_y =
1498 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1499 s->thread_context[i]->end_mb_y =
1500 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1503 err = init_duplicate_context(s);
1507 s->end_mb_y = s->mb_height;
1509 s->slice_context_count = nb_slices;
1514 ff_mpv_common_end(s);
1518 /* init common structure for both encoder and decoder */
1519 void ff_mpv_common_end(MpegEncContext *s)
1523 if (s->slice_context_count > 1) {
1524 for (i = 0; i < s->slice_context_count; i++) {
1525 free_duplicate_context(s->thread_context[i]);
1527 for (i = 1; i < s->slice_context_count; i++) {
1528 av_freep(&s->thread_context[i]);
1530 s->slice_context_count = 1;
1531 } else free_duplicate_context(s);
1533 av_freep(&s->parse_context.buffer);
1534 s->parse_context.buffer_size = 0;
1536 av_freep(&s->bitstream_buffer);
1537 s->allocated_bitstream_buffer_size = 0;
1540 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1541 ff_free_picture_tables(&s->picture[i]);
1542 ff_mpeg_unref_picture(s, &s->picture[i]);
1543 av_frame_free(&s->picture[i].f);
1546 av_freep(&s->picture);
1547 ff_free_picture_tables(&s->last_picture);
1548 ff_mpeg_unref_picture(s, &s->last_picture);
1549 av_frame_free(&s->last_picture.f);
1550 ff_free_picture_tables(&s->current_picture);
1551 ff_mpeg_unref_picture(s, &s->current_picture);
1552 av_frame_free(&s->current_picture.f);
1553 ff_free_picture_tables(&s->next_picture);
1554 ff_mpeg_unref_picture(s, &s->next_picture);
1555 av_frame_free(&s->next_picture.f);
1556 ff_free_picture_tables(&s->new_picture);
1557 ff_mpeg_unref_picture(s, &s->new_picture);
1558 av_frame_free(&s->new_picture.f);
1560 free_context_frame(s);
1562 s->context_initialized = 0;
1563 s->last_picture_ptr =
1564 s->next_picture_ptr =
1565 s->current_picture_ptr = NULL;
1566 s->linesize = s->uvlinesize = 0;
1569 av_cold void ff_init_rl(RLTable *rl,
1570 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1572 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1573 uint8_t index_run[MAX_RUN + 1];
1574 int last, run, level, start, end, i;
1576 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1577 if (static_store && rl->max_level[0])
1580 /* compute max_level[], max_run[] and index_run[] */
1581 for (last = 0; last < 2; last++) {
1590 memset(max_level, 0, MAX_RUN + 1);
1591 memset(max_run, 0, MAX_LEVEL + 1);
1592 memset(index_run, rl->n, MAX_RUN + 1);
1593 for (i = start; i < end; i++) {
1594 run = rl->table_run[i];
1595 level = rl->table_level[i];
1596 if (index_run[run] == rl->n)
1598 if (level > max_level[run])
1599 max_level[run] = level;
1600 if (run > max_run[level])
1601 max_run[level] = run;
1604 rl->max_level[last] = static_store[last];
1606 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1607 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1609 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1611 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1612 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1614 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1616 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1617 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1621 av_cold void ff_init_vlc_rl(RLTable *rl)
1625 for (q = 0; q < 32; q++) {
1627 int qadd = (q - 1) | 1;
1633 for (i = 0; i < rl->vlc.table_size; i++) {
1634 int code = rl->vlc.table[i][0];
1635 int len = rl->vlc.table[i][1];
1638 if (len == 0) { // illegal code
1641 } else if (len < 0) { // more bits needed
1645 if (code == rl->n) { // esc
1649 run = rl->table_run[code] + 1;
1650 level = rl->table_level[code] * qmul + qadd;
1651 if (code >= rl->last) run += 192;
1654 rl->rl_vlc[q][i].len = len;
1655 rl->rl_vlc[q][i].level = level;
1656 rl->rl_vlc[q][i].run = run;
1661 static void release_unused_pictures(MpegEncContext *s)
1665 /* release non reference frames */
1666 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1667 if (!s->picture[i].reference)
1668 ff_mpeg_unref_picture(s, &s->picture[i]);
1672 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1674 if (pic == s->last_picture_ptr)
1676 if (!pic->f->buf[0])
1678 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1683 static int find_unused_picture(MpegEncContext *s, int shared)
1688 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1689 if (!s->picture[i].f->buf[0] && &s->picture[i] != s->last_picture_ptr)
1693 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1694 if (pic_is_unused(s, &s->picture[i]))
1699 av_log(s->avctx, AV_LOG_FATAL,
1700 "Internal error, picture buffer overflow\n");
1701 /* We could return -1, but the codec would crash trying to draw into a
1702 * non-existing frame anyway. This is safer than waiting for a random crash.
1703 * Also the return of this is never useful, an encoder must only allocate
1704 * as much as allowed in the specification. This has no relationship to how
1705 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1706 * enough for such valid streams).
1707 * Plus, a decoder has to check stream validity and remove frames if too
1708 * many reference frames are around. Waiting for "OOM" is not correct at
1709 * all. Similarly, missing reference frames have to be replaced by
1710 * interpolated/MC frames, anything else is a bug in the codec ...
1716 int ff_find_unused_picture(MpegEncContext *s, int shared)
1718 int ret = find_unused_picture(s, shared);
1720 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1721 if (s->picture[ret].needs_realloc) {
1722 s->picture[ret].needs_realloc = 0;
1723 ff_free_picture_tables(&s->picture[ret]);
1724 ff_mpeg_unref_picture(s, &s->picture[ret]);
1730 static void gray_frame(AVFrame *frame)
1732 int i, h_chroma_shift, v_chroma_shift;
1734 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1736 for(i=0; i<frame->height; i++)
1737 memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1738 for(i=0; i<FF_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1739 memset(frame->data[1] + frame->linesize[1]*i,
1740 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1741 memset(frame->data[2] + frame->linesize[2]*i,
1742 0x80, FF_CEIL_RSHIFT(frame->width, h_chroma_shift));
1747 * generic function called after decoding
1748 * the header and before a frame is decoded.
1750 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1756 if (!ff_thread_can_start_frame(avctx)) {
1757 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1761 /* mark & release old frames */
1762 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1763 s->last_picture_ptr != s->next_picture_ptr &&
1764 s->last_picture_ptr->f->buf[0]) {
1765 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1768 /* release forgotten pictures */
1769 /* if (mpeg124/h263) */
1770 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1771 if (&s->picture[i] != s->last_picture_ptr &&
1772 &s->picture[i] != s->next_picture_ptr &&
1773 s->picture[i].reference && !s->picture[i].needs_realloc) {
1774 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1775 av_log(avctx, AV_LOG_ERROR,
1776 "releasing zombie picture\n");
1777 ff_mpeg_unref_picture(s, &s->picture[i]);
1781 ff_mpeg_unref_picture(s, &s->current_picture);
1783 release_unused_pictures(s);
1785 if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1786 // we already have a unused image
1787 // (maybe it was set before reading the header)
1788 pic = s->current_picture_ptr;
1790 i = ff_find_unused_picture(s, 0);
1792 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1795 pic = &s->picture[i];
1799 if (!s->droppable) {
1800 if (s->pict_type != AV_PICTURE_TYPE_B)
1804 pic->f->coded_picture_number = s->coded_picture_number++;
1806 if (ff_alloc_picture(s, pic, 0) < 0)
1809 s->current_picture_ptr = pic;
1810 // FIXME use only the vars from current_pic
1811 s->current_picture_ptr->f->top_field_first = s->top_field_first;
1812 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1813 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1814 if (s->picture_structure != PICT_FRAME)
1815 s->current_picture_ptr->f->top_field_first =
1816 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1818 s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1819 !s->progressive_sequence;
1820 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1822 s->current_picture_ptr->f->pict_type = s->pict_type;
1823 // if (s->flags && CODEC_FLAG_QSCALE)
1824 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1825 s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1827 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1828 s->current_picture_ptr)) < 0)
1831 if (s->pict_type != AV_PICTURE_TYPE_B) {
1832 s->last_picture_ptr = s->next_picture_ptr;
1834 s->next_picture_ptr = s->current_picture_ptr;
1836 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1837 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1838 s->last_picture_ptr ? s->last_picture_ptr->f->data[0] : NULL,
1839 s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL,
1840 s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1841 s->pict_type, s->droppable);
1843 if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1844 (s->pict_type != AV_PICTURE_TYPE_I ||
1845 s->picture_structure != PICT_FRAME)) {
1846 int h_chroma_shift, v_chroma_shift;
1847 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1848 &h_chroma_shift, &v_chroma_shift);
1849 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1850 av_log(avctx, AV_LOG_DEBUG,
1851 "allocating dummy last picture for B frame\n");
1852 else if (s->pict_type != AV_PICTURE_TYPE_I)
1853 av_log(avctx, AV_LOG_ERROR,
1854 "warning: first frame is no keyframe\n");
1855 else if (s->picture_structure != PICT_FRAME)
1856 av_log(avctx, AV_LOG_DEBUG,
1857 "allocate dummy last picture for field based first keyframe\n");
1859 /* Allocate a dummy frame */
1860 i = ff_find_unused_picture(s, 0);
1862 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1865 s->last_picture_ptr = &s->picture[i];
1867 s->last_picture_ptr->reference = 3;
1868 s->last_picture_ptr->f->key_frame = 0;
1869 s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1871 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1872 s->last_picture_ptr = NULL;
1876 if (!avctx->hwaccel && !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) {
1877 for(i=0; i<avctx->height; i++)
1878 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1879 0x80, avctx->width);
1880 for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1881 memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1882 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1883 memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1884 0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1887 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1888 for(i=0; i<avctx->height; i++)
1889 memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1893 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1894 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1896 if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1897 s->pict_type == AV_PICTURE_TYPE_B) {
1898 /* Allocate a dummy frame */
1899 i = ff_find_unused_picture(s, 0);
1901 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1904 s->next_picture_ptr = &s->picture[i];
1906 s->next_picture_ptr->reference = 3;
1907 s->next_picture_ptr->f->key_frame = 0;
1908 s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1910 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1911 s->next_picture_ptr = NULL;
1914 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1915 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1918 #if 0 // BUFREF-FIXME
1919 memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1920 memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1922 if (s->last_picture_ptr) {
1923 ff_mpeg_unref_picture(s, &s->last_picture);
1924 if (s->last_picture_ptr->f->buf[0] &&
1925 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1926 s->last_picture_ptr)) < 0)
1929 if (s->next_picture_ptr) {
1930 ff_mpeg_unref_picture(s, &s->next_picture);
1931 if (s->next_picture_ptr->f->buf[0] &&
1932 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1933 s->next_picture_ptr)) < 0)
1937 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1938 s->last_picture_ptr->f->buf[0]));
1940 if (s->picture_structure!= PICT_FRAME) {
1942 for (i = 0; i < 4; i++) {
1943 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1944 s->current_picture.f->data[i] +=
1945 s->current_picture.f->linesize[i];
1947 s->current_picture.f->linesize[i] *= 2;
1948 s->last_picture.f->linesize[i] *= 2;
1949 s->next_picture.f->linesize[i] *= 2;
1953 s->err_recognition = avctx->err_recognition;
1955 /* set dequantizer, we can't do it during init as
1956 * it might change for mpeg4 and we can't do it in the header
1957 * decode as init is not called for mpeg4 there yet */
1958 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1959 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1960 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1961 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1962 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1963 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1965 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1966 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1969 if (s->avctx->debug & FF_DEBUG_NOMC) {
1970 gray_frame(s->current_picture_ptr->f);
1976 /* called after a frame has been decoded. */
1977 void ff_mpv_frame_end(MpegEncContext *s)
1981 if (s->current_picture.reference)
1982 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1986 static int clip_line(int *sx, int *sy, int *ex, int *ey, int maxx)
1989 return clip_line(ex, ey, sx, sy, maxx);
1994 *sy = *ey + (*sy - *ey) * (int64_t)*ex / (*ex - *sx);
2001 *ey = *sy + (*ey - *sy) * (int64_t)(maxx - *sx) / (*ex - *sx);
2009 * Draw a line from (ex, ey) -> (sx, sy).
2010 * @param w width of the image
2011 * @param h height of the image
2012 * @param stride stride/linesize of the image
2013 * @param color color of the arrow
2015 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
2016 int w, int h, int stride, int color)
2020 if (clip_line(&sx, &sy, &ex, &ey, w - 1))
2022 if (clip_line(&sy, &sx, &ey, &ex, h - 1))
2025 sx = av_clip(sx, 0, w - 1);
2026 sy = av_clip(sy, 0, h - 1);
2027 ex = av_clip(ex, 0, w - 1);
2028 ey = av_clip(ey, 0, h - 1);
2030 buf[sy * stride + sx] += color;
2032 if (FFABS(ex - sx) > FFABS(ey - sy)) {
2034 FFSWAP(int, sx, ex);
2035 FFSWAP(int, sy, ey);
2037 buf += sx + sy * stride;
2039 f = ((ey - sy) << 16) / ex;
2040 for (x = 0; x <= ex; x++) {
2042 fr = (x * f) & 0xFFFF;
2043 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
2044 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
2048 FFSWAP(int, sx, ex);
2049 FFSWAP(int, sy, ey);
2051 buf += sx + sy * stride;
2054 f = ((ex - sx) << 16) / ey;
2057 for(y= 0; y <= ey; y++){
2059 fr = (y*f) & 0xFFFF;
2060 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
2061 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
2067 * Draw an arrow from (ex, ey) -> (sx, sy).
2068 * @param w width of the image
2069 * @param h height of the image
2070 * @param stride stride/linesize of the image
2071 * @param color color of the arrow
2073 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
2074 int ey, int w, int h, int stride, int color, int tail, int direction)
2079 FFSWAP(int, sx, ex);
2080 FFSWAP(int, sy, ey);
2083 sx = av_clip(sx, -100, w + 100);
2084 sy = av_clip(sy, -100, h + 100);
2085 ex = av_clip(ex, -100, w + 100);
2086 ey = av_clip(ey, -100, h + 100);
2091 if (dx * dx + dy * dy > 3 * 3) {
2094 int length = ff_sqrt((rx * rx + ry * ry) << 8);
2096 // FIXME subpixel accuracy
2097 rx = ROUNDED_DIV(rx * 3 << 4, length);
2098 ry = ROUNDED_DIV(ry * 3 << 4, length);
2105 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
2106 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
2108 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
2111 static int add_mb(AVMotionVector *mb, uint32_t mb_type,
2112 int dst_x, int dst_y,
2113 int src_x, int src_y,
2116 if (dst_x == src_x && dst_y == src_y)
2118 mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
2119 mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
2124 mb->source = direction ? 1 : -1;
2125 mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
2130 * Print debugging info for the given picture.
2132 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
2133 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
2135 int mb_width, int mb_height, int mb_stride, int quarter_sample)
2137 if ((avctx->flags2 & CODEC_FLAG2_EXPORT_MVS) && mbtype_table && motion_val[0]) {
2138 const int shift = 1 + quarter_sample;
2139 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2140 const int mv_stride = (mb_width << mv_sample_log2) +
2141 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2142 int mb_x, mb_y, mbcount = 0;
2144 /* size is width * height * 2 * 4 where 2 is for directions and 4 is
2145 * for the maximum number of MB (4 MB in case of IS_8x8) */
2146 AVMotionVector *mvs = av_malloc_array(mb_width * mb_height, 2 * 4 * sizeof(AVMotionVector));
2150 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2151 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2152 int i, direction, mb_type = mbtype_table[mb_x + mb_y * mb_stride];
2153 for (direction = 0; direction < 2; direction++) {
2154 if (!USES_LIST(mb_type, direction))
2156 if (IS_8X8(mb_type)) {
2157 for (i = 0; i < 4; i++) {
2158 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2159 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2160 int xy = (mb_x * 2 + (i & 1) +
2161 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2162 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2163 int my = (motion_val[direction][xy][1] >> shift) + sy;
2164 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
2166 } else if (IS_16X8(mb_type)) {
2167 for (i = 0; i < 2; i++) {
2168 int sx = mb_x * 16 + 8;
2169 int sy = mb_y * 16 + 4 + 8 * i;
2170 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2171 int mx = (motion_val[direction][xy][0] >> shift);
2172 int my = (motion_val[direction][xy][1] >> shift);
2174 if (IS_INTERLACED(mb_type))
2177 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
2179 } else if (IS_8X16(mb_type)) {
2180 for (i = 0; i < 2; i++) {
2181 int sx = mb_x * 16 + 4 + 8 * i;
2182 int sy = mb_y * 16 + 8;
2183 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2184 int mx = motion_val[direction][xy][0] >> shift;
2185 int my = motion_val[direction][xy][1] >> shift;
2187 if (IS_INTERLACED(mb_type))
2190 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx + sx, my + sy, direction);
2193 int sx = mb_x * 16 + 8;
2194 int sy = mb_y * 16 + 8;
2195 int xy = (mb_x + mb_y * mv_stride) << mv_sample_log2;
2196 int mx = (motion_val[direction][xy][0]>>shift) + sx;
2197 int my = (motion_val[direction][xy][1]>>shift) + sy;
2198 mbcount += add_mb(mvs + mbcount, mb_type, sx, sy, mx, my, direction);
2205 AVFrameSideData *sd;
2207 av_log(avctx, AV_LOG_DEBUG, "Adding %d MVs info to frame %d\n", mbcount, avctx->frame_number);
2208 sd = av_frame_new_side_data(pict, AV_FRAME_DATA_MOTION_VECTORS, mbcount * sizeof(AVMotionVector));
2211 memcpy(sd->data, mvs, mbcount * sizeof(AVMotionVector));
2217 /* TODO: export all the following to make them accessible for users (and filters) */
2218 if (avctx->hwaccel || !mbtype_table
2219 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
2223 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
2226 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
2227 av_get_picture_type_char(pict->pict_type));
2228 for (y = 0; y < mb_height; y++) {
2229 for (x = 0; x < mb_width; x++) {
2230 if (avctx->debug & FF_DEBUG_SKIP) {
2231 int count = mbskip_table[x + y * mb_stride];
2234 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
2236 if (avctx->debug & FF_DEBUG_QP) {
2237 av_log(avctx, AV_LOG_DEBUG, "%2d",
2238 qscale_table[x + y * mb_stride]);
2240 if (avctx->debug & FF_DEBUG_MB_TYPE) {
2241 int mb_type = mbtype_table[x + y * mb_stride];
2242 // Type & MV direction
2243 if (IS_PCM(mb_type))
2244 av_log(avctx, AV_LOG_DEBUG, "P");
2245 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
2246 av_log(avctx, AV_LOG_DEBUG, "A");
2247 else if (IS_INTRA4x4(mb_type))
2248 av_log(avctx, AV_LOG_DEBUG, "i");
2249 else if (IS_INTRA16x16(mb_type))
2250 av_log(avctx, AV_LOG_DEBUG, "I");
2251 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
2252 av_log(avctx, AV_LOG_DEBUG, "d");
2253 else if (IS_DIRECT(mb_type))
2254 av_log(avctx, AV_LOG_DEBUG, "D");
2255 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
2256 av_log(avctx, AV_LOG_DEBUG, "g");
2257 else if (IS_GMC(mb_type))
2258 av_log(avctx, AV_LOG_DEBUG, "G");
2259 else if (IS_SKIP(mb_type))
2260 av_log(avctx, AV_LOG_DEBUG, "S");
2261 else if (!USES_LIST(mb_type, 1))
2262 av_log(avctx, AV_LOG_DEBUG, ">");
2263 else if (!USES_LIST(mb_type, 0))
2264 av_log(avctx, AV_LOG_DEBUG, "<");
2266 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2267 av_log(avctx, AV_LOG_DEBUG, "X");
2271 if (IS_8X8(mb_type))
2272 av_log(avctx, AV_LOG_DEBUG, "+");
2273 else if (IS_16X8(mb_type))
2274 av_log(avctx, AV_LOG_DEBUG, "-");
2275 else if (IS_8X16(mb_type))
2276 av_log(avctx, AV_LOG_DEBUG, "|");
2277 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
2278 av_log(avctx, AV_LOG_DEBUG, " ");
2280 av_log(avctx, AV_LOG_DEBUG, "?");
2283 if (IS_INTERLACED(mb_type))
2284 av_log(avctx, AV_LOG_DEBUG, "=");
2286 av_log(avctx, AV_LOG_DEBUG, " ");
2289 av_log(avctx, AV_LOG_DEBUG, "\n");
2293 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
2294 (avctx->debug_mv)) {
2295 const int shift = 1 + quarter_sample;
2299 int h_chroma_shift, v_chroma_shift, block_height;
2300 const int width = avctx->width;
2301 const int height = avctx->height;
2302 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
2303 const int mv_stride = (mb_width << mv_sample_log2) +
2304 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
2306 *low_delay = 0; // needed to see the vectors without trashing the buffers
2308 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
2310 av_frame_make_writable(pict);
2312 pict->opaque = NULL;
2313 ptr = pict->data[0];
2314 block_height = 16 >> v_chroma_shift;
2316 for (mb_y = 0; mb_y < mb_height; mb_y++) {
2318 for (mb_x = 0; mb_x < mb_width; mb_x++) {
2319 const int mb_index = mb_x + mb_y * mb_stride;
2320 if ((avctx->debug_mv) && motion_val[0]) {
2322 for (type = 0; type < 3; type++) {
2326 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
2327 (pict->pict_type!= AV_PICTURE_TYPE_P))
2332 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
2333 (pict->pict_type!= AV_PICTURE_TYPE_B))
2338 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2339 (pict->pict_type!= AV_PICTURE_TYPE_B))
2344 if (!USES_LIST(mbtype_table[mb_index], direction))
2347 if (IS_8X8(mbtype_table[mb_index])) {
2349 for (i = 0; i < 4; i++) {
2350 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2351 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2352 int xy = (mb_x * 2 + (i & 1) +
2353 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2354 int mx = (motion_val[direction][xy][0] >> shift) + sx;
2355 int my = (motion_val[direction][xy][1] >> shift) + sy;
2356 draw_arrow(ptr, sx, sy, mx, my, width,
2357 height, pict->linesize[0], 100, 0, direction);
2359 } else if (IS_16X8(mbtype_table[mb_index])) {
2361 for (i = 0; i < 2; i++) {
2362 int sx = mb_x * 16 + 8;
2363 int sy = mb_y * 16 + 4 + 8 * i;
2364 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2365 int mx = (motion_val[direction][xy][0] >> shift);
2366 int my = (motion_val[direction][xy][1] >> shift);
2368 if (IS_INTERLACED(mbtype_table[mb_index]))
2371 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2372 height, pict->linesize[0], 100, 0, direction);
2374 } else if (IS_8X16(mbtype_table[mb_index])) {
2376 for (i = 0; i < 2; i++) {
2377 int sx = mb_x * 16 + 4 + 8 * i;
2378 int sy = mb_y * 16 + 8;
2379 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2380 int mx = motion_val[direction][xy][0] >> shift;
2381 int my = motion_val[direction][xy][1] >> shift;
2383 if (IS_INTERLACED(mbtype_table[mb_index]))
2386 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2387 height, pict->linesize[0], 100, 0, direction);
2390 int sx= mb_x * 16 + 8;
2391 int sy= mb_y * 16 + 8;
2392 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2393 int mx= (motion_val[direction][xy][0]>>shift) + sx;
2394 int my= (motion_val[direction][xy][1]>>shift) + sy;
2395 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100, 0, direction);
2399 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2400 uint64_t c = (qscale_table[mb_index] * 128 / 31) *
2401 0x0101010101010101ULL;
2403 for (y = 0; y < block_height; y++) {
2404 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2405 (block_height * mb_y + y) *
2406 pict->linesize[1]) = c;
2407 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2408 (block_height * mb_y + y) *
2409 pict->linesize[2]) = c;
2412 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2414 int mb_type = mbtype_table[mb_index];
2417 #define COLOR(theta, r) \
2418 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2419 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2423 if (IS_PCM(mb_type)) {
2425 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2426 IS_INTRA16x16(mb_type)) {
2428 } else if (IS_INTRA4x4(mb_type)) {
2430 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2432 } else if (IS_DIRECT(mb_type)) {
2434 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2436 } else if (IS_GMC(mb_type)) {
2438 } else if (IS_SKIP(mb_type)) {
2440 } else if (!USES_LIST(mb_type, 1)) {
2442 } else if (!USES_LIST(mb_type, 0)) {
2445 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2449 u *= 0x0101010101010101ULL;
2450 v *= 0x0101010101010101ULL;
2451 for (y = 0; y < block_height; y++) {
2452 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2453 (block_height * mb_y + y) * pict->linesize[1]) = u;
2454 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2455 (block_height * mb_y + y) * pict->linesize[2]) = v;
2459 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2460 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2461 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2462 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2463 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2465 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2466 for (y = 0; y < 16; y++)
2467 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2468 pict->linesize[0]] ^= 0x80;
2470 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2471 int dm = 1 << (mv_sample_log2 - 2);
2472 for (i = 0; i < 4; i++) {
2473 int sx = mb_x * 16 + 8 * (i & 1);
2474 int sy = mb_y * 16 + 8 * (i >> 1);
2475 int xy = (mb_x * 2 + (i & 1) +
2476 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2478 int32_t *mv = (int32_t *) &motion_val[0][xy];
2479 if (mv[0] != mv[dm] ||
2480 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2481 for (y = 0; y < 8; y++)
2482 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2483 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2484 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2485 pict->linesize[0]) ^= 0x8080808080808080ULL;
2489 if (IS_INTERLACED(mb_type) &&
2490 avctx->codec->id == AV_CODEC_ID_H264) {
2494 mbskip_table[mb_index] = 0;
2500 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2502 ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
2503 p->qscale_table, p->motion_val, &s->low_delay,
2504 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2507 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2509 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2510 int offset = 2*s->mb_stride + 1;
2512 return AVERROR(ENOMEM);
2513 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2514 ref->size -= offset;
2515 ref->data += offset;
2516 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2519 static inline int hpel_motion_lowres(MpegEncContext *s,
2520 uint8_t *dest, uint8_t *src,
2521 int field_based, int field_select,
2522 int src_x, int src_y,
2523 int width, int height, ptrdiff_t stride,
2524 int h_edge_pos, int v_edge_pos,
2525 int w, int h, h264_chroma_mc_func *pix_op,
2526 int motion_x, int motion_y)
2528 const int lowres = s->avctx->lowres;
2529 const int op_index = FFMIN(lowres, 3);
2530 const int s_mask = (2 << lowres) - 1;
2534 if (s->quarter_sample) {
2539 sx = motion_x & s_mask;
2540 sy = motion_y & s_mask;
2541 src_x += motion_x >> lowres + 1;
2542 src_y += motion_y >> lowres + 1;
2544 src += src_y * stride + src_x;
2546 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2547 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2548 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
2549 s->linesize, s->linesize,
2550 w + 1, (h + 1) << field_based,
2551 src_x, src_y << field_based,
2552 h_edge_pos, v_edge_pos);
2553 src = s->edge_emu_buffer;
2557 sx = (sx << 2) >> lowres;
2558 sy = (sy << 2) >> lowres;
2561 pix_op[op_index](dest, src, stride, h, sx, sy);
2565 /* apply one mpeg motion vector to the three components */
2566 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2573 uint8_t **ref_picture,
2574 h264_chroma_mc_func *pix_op,
2575 int motion_x, int motion_y,
2578 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2579 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
2580 ptrdiff_t uvlinesize, linesize;
2581 const int lowres = s->avctx->lowres;
2582 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2583 const int block_s = 8>>lowres;
2584 const int s_mask = (2 << lowres) - 1;
2585 const int h_edge_pos = s->h_edge_pos >> lowres;
2586 const int v_edge_pos = s->v_edge_pos >> lowres;
2587 linesize = s->current_picture.f->linesize[0] << field_based;
2588 uvlinesize = s->current_picture.f->linesize[1] << field_based;
2590 // FIXME obviously not perfect but qpel will not work in lowres anyway
2591 if (s->quarter_sample) {
2597 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2600 sx = motion_x & s_mask;
2601 sy = motion_y & s_mask;
2602 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2603 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2605 if (s->out_format == FMT_H263) {
2606 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2607 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2608 uvsrc_x = src_x >> 1;
2609 uvsrc_y = src_y >> 1;
2610 } else if (s->out_format == FMT_H261) {
2611 // even chroma mv's are full pel in H261
2614 uvsx = (2 * mx) & s_mask;
2615 uvsy = (2 * my) & s_mask;
2616 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2617 uvsrc_y = mb_y * block_s + (my >> lowres);
2619 if(s->chroma_y_shift){
2624 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2625 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2627 if(s->chroma_x_shift){
2631 uvsy = motion_y & s_mask;
2633 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2636 uvsx = motion_x & s_mask;
2637 uvsy = motion_y & s_mask;
2644 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2645 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2646 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2648 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2649 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2650 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2651 linesize >> field_based, linesize >> field_based,
2652 17, 17 + field_based,
2653 src_x, src_y << field_based, h_edge_pos,
2655 ptr_y = s->edge_emu_buffer;
2656 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2657 uint8_t *ubuf = s->edge_emu_buffer + 18 * s->linesize;
2658 uint8_t *vbuf =ubuf + 9 * s->uvlinesize;
2659 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
2660 uvlinesize >> field_based, uvlinesize >> field_based,
2662 uvsrc_x, uvsrc_y << field_based,
2663 h_edge_pos >> 1, v_edge_pos >> 1);
2664 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
2665 uvlinesize >> field_based,uvlinesize >> field_based,
2667 uvsrc_x, uvsrc_y << field_based,
2668 h_edge_pos >> 1, v_edge_pos >> 1);
2674 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
2676 dest_y += s->linesize;
2677 dest_cb += s->uvlinesize;
2678 dest_cr += s->uvlinesize;
2682 ptr_y += s->linesize;
2683 ptr_cb += s->uvlinesize;
2684 ptr_cr += s->uvlinesize;
2687 sx = (sx << 2) >> lowres;
2688 sy = (sy << 2) >> lowres;
2689 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2691 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2692 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2693 uvsx = (uvsx << 2) >> lowres;
2694 uvsy = (uvsy << 2) >> lowres;
2696 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2697 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2700 // FIXME h261 lowres loop filter
2703 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2704 uint8_t *dest_cb, uint8_t *dest_cr,
2705 uint8_t **ref_picture,
2706 h264_chroma_mc_func * pix_op,
2709 const int lowres = s->avctx->lowres;
2710 const int op_index = FFMIN(lowres, 3);
2711 const int block_s = 8 >> lowres;
2712 const int s_mask = (2 << lowres) - 1;
2713 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2714 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2715 int emu = 0, src_x, src_y, sx, sy;
2719 if (s->quarter_sample) {
2724 /* In case of 8X8, we construct a single chroma motion vector
2725 with a special rounding */
2726 mx = ff_h263_round_chroma(mx);
2727 my = ff_h263_round_chroma(my);
2731 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2732 src_y = s->mb_y * block_s + (my >> lowres + 1);
2734 offset = src_y * s->uvlinesize + src_x;
2735 ptr = ref_picture[1] + offset;
2736 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2737 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2738 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2739 s->uvlinesize, s->uvlinesize,
2741 src_x, src_y, h_edge_pos, v_edge_pos);
2742 ptr = s->edge_emu_buffer;
2745 sx = (sx << 2) >> lowres;
2746 sy = (sy << 2) >> lowres;
2747 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2749 ptr = ref_picture[2] + offset;
2751 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
2752 s->uvlinesize, s->uvlinesize,
2754 src_x, src_y, h_edge_pos, v_edge_pos);
2755 ptr = s->edge_emu_buffer;
2757 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2761 * motion compensation of a single macroblock
2763 * @param dest_y luma destination pointer
2764 * @param dest_cb chroma cb/u destination pointer
2765 * @param dest_cr chroma cr/v destination pointer
2766 * @param dir direction (0->forward, 1->backward)
2767 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2768 * @param pix_op halfpel motion compensation function (average or put normally)
2769 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2771 static inline void MPV_motion_lowres(MpegEncContext *s,
2772 uint8_t *dest_y, uint8_t *dest_cb,
2774 int dir, uint8_t **ref_picture,
2775 h264_chroma_mc_func *pix_op)
2779 const int lowres = s->avctx->lowres;
2780 const int block_s = 8 >>lowres;
2785 switch (s->mv_type) {
2787 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2789 ref_picture, pix_op,
2790 s->mv[dir][0][0], s->mv[dir][0][1],
2796 for (i = 0; i < 4; i++) {
2797 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2798 s->linesize) * block_s,
2799 ref_picture[0], 0, 0,
2800 (2 * mb_x + (i & 1)) * block_s,
2801 (2 * mb_y + (i >> 1)) * block_s,
2802 s->width, s->height, s->linesize,
2803 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2804 block_s, block_s, pix_op,
2805 s->mv[dir][i][0], s->mv[dir][i][1]);
2807 mx += s->mv[dir][i][0];
2808 my += s->mv[dir][i][1];
2811 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2812 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2816 if (s->picture_structure == PICT_FRAME) {
2818 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2819 1, 0, s->field_select[dir][0],
2820 ref_picture, pix_op,
2821 s->mv[dir][0][0], s->mv[dir][0][1],
2824 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2825 1, 1, s->field_select[dir][1],
2826 ref_picture, pix_op,
2827 s->mv[dir][1][0], s->mv[dir][1][1],
2830 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2831 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2832 ref_picture = s->current_picture_ptr->f->data;
2835 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2836 0, 0, s->field_select[dir][0],
2837 ref_picture, pix_op,
2839 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2843 for (i = 0; i < 2; i++) {
2844 uint8_t **ref2picture;
2846 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2847 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2848 ref2picture = ref_picture;
2850 ref2picture = s->current_picture_ptr->f->data;
2853 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2854 0, 0, s->field_select[dir][i],
2855 ref2picture, pix_op,
2856 s->mv[dir][i][0], s->mv[dir][i][1] +
2857 2 * block_s * i, block_s, mb_y >> 1);
2859 dest_y += 2 * block_s * s->linesize;
2860 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2861 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2865 if (s->picture_structure == PICT_FRAME) {
2866 for (i = 0; i < 2; i++) {
2868 for (j = 0; j < 2; j++) {
2869 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2871 ref_picture, pix_op,
2872 s->mv[dir][2 * i + j][0],
2873 s->mv[dir][2 * i + j][1],
2876 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2879 for (i = 0; i < 2; i++) {
2880 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2881 0, 0, s->picture_structure != i + 1,
2882 ref_picture, pix_op,
2883 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2884 2 * block_s, mb_y >> 1);
2886 // after put we make avg of the same block
2887 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2889 // opposite parity is always in the same
2890 // frame if this is second field
2891 if (!s->first_field) {
2892 ref_picture = s->current_picture_ptr->f->data;
2903 * find the lowest MB row referenced in the MVs
2905 int ff_mpv_lowest_referenced_row(MpegEncContext *s, int dir)
2907 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2908 int my, off, i, mvs;
2910 if (s->picture_structure != PICT_FRAME || s->mcsel)
2913 switch (s->mv_type) {
2927 for (i = 0; i < mvs; i++) {
2928 my = s->mv[dir][i][1]<<qpel_shift;
2929 my_max = FFMAX(my_max, my);
2930 my_min = FFMIN(my_min, my);
2933 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2935 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2937 return s->mb_height-1;
2940 /* put block[] to dest[] */
2941 static inline void put_dct(MpegEncContext *s,
2942 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2944 s->dct_unquantize_intra(s, block, i, qscale);
2945 s->idsp.idct_put(dest, line_size, block);
2948 /* add block[] to dest[] */
2949 static inline void add_dct(MpegEncContext *s,
2950 int16_t *block, int i, uint8_t *dest, int line_size)
2952 if (s->block_last_index[i] >= 0) {
2953 s->idsp.idct_add(dest, line_size, block);
2957 static inline void add_dequant_dct(MpegEncContext *s,
2958 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2960 if (s->block_last_index[i] >= 0) {
2961 s->dct_unquantize_inter(s, block, i, qscale);
2963 s->idsp.idct_add(dest, line_size, block);
2968 * Clean dc, ac, coded_block for the current non-intra MB.
2970 void ff_clean_intra_table_entries(MpegEncContext *s)
2972 int wrap = s->b8_stride;
2973 int xy = s->block_index[0];
2976 s->dc_val[0][xy + 1 ] =
2977 s->dc_val[0][xy + wrap] =
2978 s->dc_val[0][xy + 1 + wrap] = 1024;
2980 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2981 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2982 if (s->msmpeg4_version>=3) {
2983 s->coded_block[xy ] =
2984 s->coded_block[xy + 1 ] =
2985 s->coded_block[xy + wrap] =
2986 s->coded_block[xy + 1 + wrap] = 0;
2989 wrap = s->mb_stride;
2990 xy = s->mb_x + s->mb_y * wrap;
2992 s->dc_val[2][xy] = 1024;
2994 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2995 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2997 s->mbintra_table[xy]= 0;
3000 /* generic function called after a macroblock has been parsed by the
3001 decoder or after it has been encoded by the encoder.
3003 Important variables used:
3004 s->mb_intra : true if intra macroblock
3005 s->mv_dir : motion vector direction
3006 s->mv_type : motion vector type
3007 s->mv : motion vector
3008 s->interlaced_dct : true if interlaced dct used (mpeg2)
3010 static av_always_inline
3011 void mpv_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
3012 int lowres_flag, int is_mpeg12)
3014 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
3017 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
3018 s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
3022 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
3023 /* print DCT coefficients */
3025 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
3027 for(j=0; j<64; j++){
3028 av_log(s->avctx, AV_LOG_DEBUG, "%5d",
3029 block[i][s->idsp.idct_permutation[j]]);
3031 av_log(s->avctx, AV_LOG_DEBUG, "\n");
3035 s->current_picture.qscale_table[mb_xy] = s->qscale;
3037 /* update DC predictors for P macroblocks */
3039 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
3040 if(s->mbintra_table[mb_xy])
3041 ff_clean_intra_table_entries(s);
3045 s->last_dc[2] = 128 << s->intra_dc_precision;
3048 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
3049 s->mbintra_table[mb_xy]=1;
3051 if ( (s->flags&CODEC_FLAG_PSNR)
3052 || s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor
3053 || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
3054 uint8_t *dest_y, *dest_cb, *dest_cr;
3055 int dct_linesize, dct_offset;
3056 op_pixels_func (*op_pix)[4];
3057 qpel_mc_func (*op_qpix)[16];
3058 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3059 const int uvlinesize = s->current_picture.f->linesize[1];
3060 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
3061 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
3063 /* avoid copy if macroblock skipped in last frame too */
3064 /* skip only during decoding as we might trash the buffers during encoding a bit */
3066 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
3068 if (s->mb_skipped) {
3070 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
3072 } else if(!s->current_picture.reference) {
3075 *mbskip_ptr = 0; /* not skipped */
3079 dct_linesize = linesize << s->interlaced_dct;
3080 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
3084 dest_cb= s->dest[1];
3085 dest_cr= s->dest[2];
3087 dest_y = s->b_scratchpad;
3088 dest_cb= s->b_scratchpad+16*linesize;
3089 dest_cr= s->b_scratchpad+32*linesize;
3093 /* motion handling */
3094 /* decoding or more than one mb_type (MC was already done otherwise) */
3097 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
3098 if (s->mv_dir & MV_DIR_FORWARD) {
3099 ff_thread_await_progress(&s->last_picture_ptr->tf,
3100 ff_mpv_lowest_referenced_row(s, 0),
3103 if (s->mv_dir & MV_DIR_BACKWARD) {
3104 ff_thread_await_progress(&s->next_picture_ptr->tf,
3105 ff_mpv_lowest_referenced_row(s, 1),
3111 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
3113 if (s->mv_dir & MV_DIR_FORWARD) {
3114 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
3115 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
3117 if (s->mv_dir & MV_DIR_BACKWARD) {
3118 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
3121 op_qpix = s->me.qpel_put;
3122 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
3123 op_pix = s->hdsp.put_pixels_tab;
3125 op_pix = s->hdsp.put_no_rnd_pixels_tab;
3127 if (s->mv_dir & MV_DIR_FORWARD) {
3128 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
3129 op_pix = s->hdsp.avg_pixels_tab;
3130 op_qpix= s->me.qpel_avg;
3132 if (s->mv_dir & MV_DIR_BACKWARD) {
3133 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
3138 /* skip dequant / idct if we are really late ;) */
3139 if(s->avctx->skip_idct){
3140 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
3141 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
3142 || s->avctx->skip_idct >= AVDISCARD_ALL)
3146 /* add dct residue */
3147 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
3148 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
3149 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
3150 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
3151 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
3152 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
3154 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3155 if (s->chroma_y_shift){
3156 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
3157 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
3161 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
3162 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
3163 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3164 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
3167 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
3168 add_dct(s, block[0], 0, dest_y , dct_linesize);
3169 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
3170 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
3171 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
3173 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3174 if(s->chroma_y_shift){//Chroma420
3175 add_dct(s, block[4], 4, dest_cb, uvlinesize);
3176 add_dct(s, block[5], 5, dest_cr, uvlinesize);
3179 dct_linesize = uvlinesize << s->interlaced_dct;
3180 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3182 add_dct(s, block[4], 4, dest_cb, dct_linesize);
3183 add_dct(s, block[5], 5, dest_cr, dct_linesize);
3184 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
3185 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
3186 if(!s->chroma_x_shift){//Chroma444
3187 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
3188 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
3189 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
3190 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
3195 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
3196 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
3199 /* dct only in intra block */
3200 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
3201 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
3202 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
3203 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
3204 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
3206 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3207 if(s->chroma_y_shift){
3208 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
3209 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
3213 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
3214 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
3215 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3216 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
3220 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
3221 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
3222 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
3223 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
3225 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3226 if(s->chroma_y_shift){
3227 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
3228 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
3231 dct_linesize = uvlinesize << s->interlaced_dct;
3232 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
3234 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
3235 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
3236 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
3237 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
3238 if(!s->chroma_x_shift){//Chroma444
3239 s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
3240 s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
3241 s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
3242 s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
3250 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
3251 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
3252 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
3257 void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
3260 if(s->out_format == FMT_MPEG1) {
3261 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 1);
3262 else mpv_decode_mb_internal(s, block, 0, 1);
3265 if(s->avctx->lowres) mpv_decode_mb_internal(s, block, 1, 0);
3266 else mpv_decode_mb_internal(s, block, 0, 0);
3269 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
3271 ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
3272 s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
3273 s->first_field, s->low_delay);
3276 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3277 const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
3278 const int uvlinesize = s->current_picture.f->linesize[1];
3279 const int mb_size= 4 - s->avctx->lowres;
3281 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3282 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3283 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3284 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3285 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3286 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;
3287 //block_index is not used by mpeg2, so it is not affected by chroma_format
3289 s->dest[0] = s->current_picture.f->data[0] + ((s->mb_x - 1) << mb_size);
3290 s->dest[1] = s->current_picture.f->data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3291 s->dest[2] = s->current_picture.f->data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3293 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3295 if(s->picture_structure==PICT_FRAME){
3296 s->dest[0] += s->mb_y * linesize << mb_size;
3297 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3298 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3300 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3301 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3302 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3303 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3309 * Permute an 8x8 block.
3310 * @param block the block which will be permuted according to the given permutation vector
3311 * @param permutation the permutation vector
3312 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3313 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3314 * (inverse) permutated to scantable order!
3316 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3322 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3324 for(i=0; i<=last; i++){
3325 const int j= scantable[i];
3330 for(i=0; i<=last; i++){
3331 const int j= scantable[i];
3332 const int perm_j= permutation[j];
3333 block[perm_j]= temp[j];
3337 void ff_mpeg_flush(AVCodecContext *avctx){
3339 MpegEncContext *s = avctx->priv_data;
3341 if (!s || !s->picture)
3344 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3345 ff_mpeg_unref_picture(s, &s->picture[i]);
3346 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3348 ff_mpeg_unref_picture(s, &s->current_picture);
3349 ff_mpeg_unref_picture(s, &s->last_picture);
3350 ff_mpeg_unref_picture(s, &s->next_picture);
3352 s->mb_x= s->mb_y= 0;
3355 s->parse_context.state= -1;
3356 s->parse_context.frame_start_found= 0;
3357 s->parse_context.overread= 0;
3358 s->parse_context.overread_index= 0;
3359 s->parse_context.index= 0;
3360 s->parse_context.last_index= 0;
3361 s->bitstream_buffer_size=0;
3366 * set qscale and update qscale dependent variables.
3368 void ff_set_qscale(MpegEncContext * s, int qscale)
3372 else if (qscale > 31)
3376 s->chroma_qscale= s->chroma_qscale_table[qscale];
3378 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3379 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3382 void ff_mpv_report_decode_progress(MpegEncContext *s)
3384 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3385 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);