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"
35 #include "h264chroma.h"
38 #include "mpegvideo.h"
41 #include "xvmc_internal.h"
45 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
46 int16_t *block, int n, int qscale);
47 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
48 int16_t *block, int n, int qscale);
49 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
50 int16_t *block, int n, int qscale);
51 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
52 int16_t *block, int n, int qscale);
53 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
54 int16_t *block, int n, int qscale);
55 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
56 int16_t *block, int n, int qscale);
57 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
58 int16_t *block, int n, int qscale);
60 static const uint8_t ff_default_chroma_qscale_table[32] = {
61 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
62 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
63 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
66 const uint8_t ff_mpeg1_dc_scale_table[128] = {
67 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
68 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
69 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
70 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
71 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
72 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
73 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
74 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
75 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
78 static const uint8_t mpeg2_dc_scale_table1[128] = {
79 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
80 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
81 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
82 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
83 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
84 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
85 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
86 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
87 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
90 static const uint8_t mpeg2_dc_scale_table2[128] = {
91 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
92 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
93 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
94 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
95 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
96 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
97 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
98 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
99 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
102 static const uint8_t mpeg2_dc_scale_table3[128] = {
103 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
104 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
105 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
106 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
107 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
108 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
109 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
110 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
111 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
114 const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
115 ff_mpeg1_dc_scale_table,
116 mpeg2_dc_scale_table1,
117 mpeg2_dc_scale_table2,
118 mpeg2_dc_scale_table3,
121 const enum AVPixelFormat ff_pixfmt_list_420[] = {
126 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
128 int mb_x, int mb_y, int mb_intra, int mb_skipped)
130 MpegEncContext *s = opaque;
133 s->mv_type = mv_type;
134 s->mb_intra = mb_intra;
135 s->mb_skipped = mb_skipped;
138 memcpy(s->mv, mv, sizeof(*mv));
140 ff_init_block_index(s);
141 ff_update_block_index(s);
143 s->dsp.clear_blocks(s->block[0]);
145 s->dest[0] = s->current_picture.f.data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
146 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);
147 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);
150 av_log(s->avctx, AV_LOG_DEBUG, "Interlaced error concealment is not fully implemented\n");
151 ff_MPV_decode_mb(s, s->block);
154 /* init common dct for both encoder and decoder */
155 av_cold int ff_dct_common_init(MpegEncContext *s)
157 ff_dsputil_init(&s->dsp, s->avctx);
158 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
159 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
160 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
162 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
163 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
164 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
165 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
166 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
167 if (s->flags & CODEC_FLAG_BITEXACT)
168 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
169 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
172 ff_MPV_common_init_axp(s);
174 ff_MPV_common_init_arm(s);
176 ff_MPV_common_init_bfin(s);
178 ff_MPV_common_init_ppc(s);
180 ff_MPV_common_init_x86(s);
182 /* load & permutate scantables
183 * note: only wmv uses different ones
185 if (s->alternate_scan) {
186 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
187 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
189 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
190 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
192 ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
193 ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
198 int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize)
200 int alloc_size = FFALIGN(FFABS(linesize) + 64, 32);
202 // edge emu needs blocksize + filter length - 1
203 // (= 17x17 for halfpel / 21x21 for h264)
204 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
205 // at uvlinesize. It supports only YUV420 so 24x24 is enough
206 // linesize * interlaced * MBsize
207 FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 4 * 24,
210 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 4 * 16 * 2,
212 s->me.temp = s->me.scratchpad;
213 s->rd_scratchpad = s->me.scratchpad;
214 s->b_scratchpad = s->me.scratchpad;
215 s->obmc_scratchpad = s->me.scratchpad + 16;
219 av_freep(&s->edge_emu_buffer);
220 return AVERROR(ENOMEM);
224 * Allocate a frame buffer
226 static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
231 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
232 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
233 s->codec_id != AV_CODEC_ID_MSS2)
234 r = ff_thread_get_buffer(s->avctx, &pic->tf,
235 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
237 pic->f.width = s->avctx->width;
238 pic->f.height = s->avctx->height;
239 pic->f.format = s->avctx->pix_fmt;
240 r = avcodec_default_get_buffer2(s->avctx, &pic->f, 0);
243 if (r < 0 || !pic->f.data[0]) {
244 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
249 if (s->avctx->hwaccel) {
250 assert(!pic->hwaccel_picture_private);
251 if (s->avctx->hwaccel->priv_data_size) {
252 pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size);
253 if (!pic->hwaccel_priv_buf) {
254 av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
257 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
261 if (s->linesize && (s->linesize != pic->f.linesize[0] ||
262 s->uvlinesize != pic->f.linesize[1])) {
263 av_log(s->avctx, AV_LOG_ERROR,
264 "get_buffer() failed (stride changed)\n");
265 ff_mpeg_unref_picture(s, pic);
269 if (pic->f.linesize[1] != pic->f.linesize[2]) {
270 av_log(s->avctx, AV_LOG_ERROR,
271 "get_buffer() failed (uv stride mismatch)\n");
272 ff_mpeg_unref_picture(s, pic);
276 if (!s->edge_emu_buffer &&
277 (ret = ff_mpv_frame_size_alloc(s, pic->f.linesize[0])) < 0) {
278 av_log(s->avctx, AV_LOG_ERROR,
279 "get_buffer() failed to allocate context scratch buffers.\n");
280 ff_mpeg_unref_picture(s, pic);
287 static void free_picture_tables(Picture *pic)
291 pic->alloc_mb_width =
292 pic->alloc_mb_height = 0;
294 av_buffer_unref(&pic->mb_var_buf);
295 av_buffer_unref(&pic->mc_mb_var_buf);
296 av_buffer_unref(&pic->mb_mean_buf);
297 av_buffer_unref(&pic->mbskip_table_buf);
298 av_buffer_unref(&pic->qscale_table_buf);
299 av_buffer_unref(&pic->mb_type_buf);
301 for (i = 0; i < 2; i++) {
302 av_buffer_unref(&pic->motion_val_buf[i]);
303 av_buffer_unref(&pic->ref_index_buf[i]);
307 static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
309 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
310 const int mb_array_size = s->mb_stride * s->mb_height;
311 const int b8_array_size = s->b8_stride * s->mb_height * 2;
315 pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
316 pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride);
317 pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) *
319 if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
320 return AVERROR(ENOMEM);
323 pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
324 pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
325 pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
326 if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
327 return AVERROR(ENOMEM);
330 if (s->out_format == FMT_H263 || s->encoding ||
331 (s->avctx->debug & FF_DEBUG_MV) || s->avctx->debug_mv) {
332 int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
333 int ref_index_size = 4 * mb_array_size;
335 for (i = 0; mv_size && i < 2; i++) {
336 pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
337 pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size);
338 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
339 return AVERROR(ENOMEM);
343 pic->alloc_mb_width = s->mb_width;
344 pic->alloc_mb_height = s->mb_height;
349 static int make_tables_writable(Picture *pic)
352 #define MAKE_WRITABLE(table) \
355 (ret = av_buffer_make_writable(&pic->table)) < 0)\
359 MAKE_WRITABLE(mb_var_buf);
360 MAKE_WRITABLE(mc_mb_var_buf);
361 MAKE_WRITABLE(mb_mean_buf);
362 MAKE_WRITABLE(mbskip_table_buf);
363 MAKE_WRITABLE(qscale_table_buf);
364 MAKE_WRITABLE(mb_type_buf);
366 for (i = 0; i < 2; i++) {
367 MAKE_WRITABLE(motion_val_buf[i]);
368 MAKE_WRITABLE(ref_index_buf[i]);
375 * Allocate a Picture.
376 * The pixels are allocated/set by calling get_buffer() if shared = 0
378 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
382 if (pic->qscale_table_buf)
383 if ( pic->alloc_mb_width != s->mb_width
384 || pic->alloc_mb_height != s->mb_height)
385 free_picture_tables(pic);
388 av_assert0(pic->f.data[0]);
391 av_assert0(!pic->f.data[0]);
393 if (alloc_frame_buffer(s, pic) < 0)
396 s->linesize = pic->f.linesize[0];
397 s->uvlinesize = pic->f.linesize[1];
400 if (!pic->qscale_table_buf)
401 ret = alloc_picture_tables(s, pic);
403 ret = make_tables_writable(pic);
408 pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
409 pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
410 pic->mb_mean = pic->mb_mean_buf->data;
413 pic->mbskip_table = pic->mbskip_table_buf->data;
414 pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1;
415 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
417 if (pic->motion_val_buf[0]) {
418 for (i = 0; i < 2; i++) {
419 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
420 pic->ref_index[i] = pic->ref_index_buf[i]->data;
426 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
427 ff_mpeg_unref_picture(s, pic);
428 free_picture_tables(pic);
429 return AVERROR(ENOMEM);
433 * Deallocate a picture.
435 void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
437 int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
440 /* WM Image / Screen codecs allocate internal buffers with different
441 * dimensions / colorspaces; ignore user-defined callbacks for these. */
442 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
443 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
444 s->codec_id != AV_CODEC_ID_MSS2)
445 ff_thread_release_buffer(s->avctx, &pic->tf);
447 av_frame_unref(&pic->f);
449 av_buffer_unref(&pic->hwaccel_priv_buf);
451 if (pic->needs_realloc)
452 free_picture_tables(pic);
454 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
457 static int update_picture_tables(Picture *dst, Picture *src)
461 #define UPDATE_TABLE(table)\
464 (!dst->table || dst->table->buffer != src->table->buffer)) {\
465 av_buffer_unref(&dst->table);\
466 dst->table = av_buffer_ref(src->table);\
468 free_picture_tables(dst);\
469 return AVERROR(ENOMEM);\
474 UPDATE_TABLE(mb_var_buf);
475 UPDATE_TABLE(mc_mb_var_buf);
476 UPDATE_TABLE(mb_mean_buf);
477 UPDATE_TABLE(mbskip_table_buf);
478 UPDATE_TABLE(qscale_table_buf);
479 UPDATE_TABLE(mb_type_buf);
480 for (i = 0; i < 2; i++) {
481 UPDATE_TABLE(motion_val_buf[i]);
482 UPDATE_TABLE(ref_index_buf[i]);
485 dst->mb_var = src->mb_var;
486 dst->mc_mb_var = src->mc_mb_var;
487 dst->mb_mean = src->mb_mean;
488 dst->mbskip_table = src->mbskip_table;
489 dst->qscale_table = src->qscale_table;
490 dst->mb_type = src->mb_type;
491 for (i = 0; i < 2; i++) {
492 dst->motion_val[i] = src->motion_val[i];
493 dst->ref_index[i] = src->ref_index[i];
496 dst->alloc_mb_width = src->alloc_mb_width;
497 dst->alloc_mb_height = src->alloc_mb_height;
502 int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
506 av_assert0(!dst->f.buf[0]);
507 av_assert0(src->f.buf[0]);
511 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
515 ret = update_picture_tables(dst, src);
519 if (src->hwaccel_picture_private) {
520 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
521 if (!dst->hwaccel_priv_buf)
523 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
526 dst->field_picture = src->field_picture;
527 dst->mb_var_sum = src->mb_var_sum;
528 dst->mc_mb_var_sum = src->mc_mb_var_sum;
529 dst->b_frame_score = src->b_frame_score;
530 dst->needs_realloc = src->needs_realloc;
531 dst->reference = src->reference;
532 dst->shared = src->shared;
536 ff_mpeg_unref_picture(s, dst);
540 static int init_duplicate_context(MpegEncContext *s)
542 int y_size = s->b8_stride * (2 * s->mb_height + 1);
543 int c_size = s->mb_stride * (s->mb_height + 1);
544 int yc_size = y_size + 2 * c_size;
552 s->obmc_scratchpad = NULL;
555 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
556 ME_MAP_SIZE * sizeof(uint32_t), fail)
557 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
558 ME_MAP_SIZE * sizeof(uint32_t), fail)
559 if (s->avctx->noise_reduction) {
560 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
561 2 * 64 * sizeof(int), fail)
564 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
565 s->block = s->blocks[0];
567 for (i = 0; i < 12; i++) {
568 s->pblocks[i] = &s->block[i];
571 if (s->out_format == FMT_H263) {
573 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
574 yc_size * sizeof(int16_t) * 16, fail);
575 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
576 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
577 s->ac_val[2] = s->ac_val[1] + c_size;
582 return -1; // free() through ff_MPV_common_end()
585 static void free_duplicate_context(MpegEncContext *s)
590 av_freep(&s->edge_emu_buffer);
591 av_freep(&s->me.scratchpad);
595 s->obmc_scratchpad = NULL;
597 av_freep(&s->dct_error_sum);
598 av_freep(&s->me.map);
599 av_freep(&s->me.score_map);
600 av_freep(&s->blocks);
601 av_freep(&s->ac_val_base);
605 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
607 #define COPY(a) bak->a = src->a
608 COPY(edge_emu_buffer);
613 COPY(obmc_scratchpad);
620 COPY(me.map_generation);
632 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
636 // FIXME copy only needed parts
638 backup_duplicate_context(&bak, dst);
639 memcpy(dst, src, sizeof(MpegEncContext));
640 backup_duplicate_context(dst, &bak);
641 for (i = 0; i < 12; i++) {
642 dst->pblocks[i] = &dst->block[i];
644 if (!dst->edge_emu_buffer &&
645 (ret = ff_mpv_frame_size_alloc(dst, dst->linesize)) < 0) {
646 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
647 "scratch buffers.\n");
650 // STOP_TIMER("update_duplicate_context")
651 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
655 int ff_mpeg_update_thread_context(AVCodecContext *dst,
656 const AVCodecContext *src)
659 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
666 // FIXME can parameters change on I-frames?
667 // in that case dst may need a reinit
668 if (!s->context_initialized) {
669 memcpy(s, s1, sizeof(MpegEncContext));
672 s->bitstream_buffer = NULL;
673 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
675 if (s1->context_initialized){
676 // s->picture_range_start += MAX_PICTURE_COUNT;
677 // s->picture_range_end += MAX_PICTURE_COUNT;
678 if((ret = ff_MPV_common_init(s)) < 0){
679 memset(s, 0, sizeof(MpegEncContext));
686 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
687 s->context_reinit = 0;
688 s->height = s1->height;
689 s->width = s1->width;
690 if ((ret = ff_MPV_common_frame_size_change(s)) < 0)
694 s->avctx->coded_height = s1->avctx->coded_height;
695 s->avctx->coded_width = s1->avctx->coded_width;
696 s->avctx->width = s1->avctx->width;
697 s->avctx->height = s1->avctx->height;
699 s->coded_picture_number = s1->coded_picture_number;
700 s->picture_number = s1->picture_number;
701 s->input_picture_number = s1->input_picture_number;
703 av_assert0(!s->picture || s->picture != s1->picture);
705 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
706 ff_mpeg_unref_picture(s, &s->picture[i]);
707 if (s1->picture[i].f.data[0] &&
708 (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0)
712 #define UPDATE_PICTURE(pic)\
714 ff_mpeg_unref_picture(s, &s->pic);\
715 if (s1->pic.f.data[0])\
716 ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\
718 ret = update_picture_tables(&s->pic, &s1->pic);\
723 UPDATE_PICTURE(current_picture);
724 UPDATE_PICTURE(last_picture);
725 UPDATE_PICTURE(next_picture);
727 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
728 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
729 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
731 // Error/bug resilience
732 s->next_p_frame_damaged = s1->next_p_frame_damaged;
733 s->workaround_bugs = s1->workaround_bugs;
734 s->padding_bug_score = s1->padding_bug_score;
737 memcpy(&s->time_increment_bits, &s1->time_increment_bits,
738 (char *) &s1->shape - (char *) &s1->time_increment_bits);
741 s->max_b_frames = s1->max_b_frames;
742 s->low_delay = s1->low_delay;
743 s->droppable = s1->droppable;
745 // DivX handling (doesn't work)
746 s->divx_packed = s1->divx_packed;
748 if (s1->bitstream_buffer) {
749 if (s1->bitstream_buffer_size +
750 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
751 av_fast_malloc(&s->bitstream_buffer,
752 &s->allocated_bitstream_buffer_size,
753 s1->allocated_bitstream_buffer_size);
754 s->bitstream_buffer_size = s1->bitstream_buffer_size;
755 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
756 s1->bitstream_buffer_size);
757 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
758 FF_INPUT_BUFFER_PADDING_SIZE);
761 // linesize dependend scratch buffer allocation
762 if (!s->edge_emu_buffer)
764 if (ff_mpv_frame_size_alloc(s, s1->linesize) < 0) {
765 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
766 "scratch buffers.\n");
767 return AVERROR(ENOMEM);
770 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
771 "be allocated due to unknown size.\n");
774 // MPEG2/interlacing info
775 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
776 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
778 if (!s1->first_field) {
779 s->last_pict_type = s1->pict_type;
780 if (s1->current_picture_ptr)
781 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality;
783 if (s1->pict_type != AV_PICTURE_TYPE_B) {
784 s->last_non_b_pict_type = s1->pict_type;
792 * Set the given MpegEncContext to common defaults
793 * (same for encoding and decoding).
794 * The changed fields will not depend upon the
795 * prior state of the MpegEncContext.
797 void ff_MPV_common_defaults(MpegEncContext *s)
799 s->y_dc_scale_table =
800 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
801 s->chroma_qscale_table = ff_default_chroma_qscale_table;
802 s->progressive_frame = 1;
803 s->progressive_sequence = 1;
804 s->picture_structure = PICT_FRAME;
806 s->coded_picture_number = 0;
807 s->picture_number = 0;
808 s->input_picture_number = 0;
810 s->picture_in_gop_number = 0;
815 s->slice_context_count = 1;
819 * Set the given MpegEncContext to defaults for decoding.
820 * the changed fields will not depend upon
821 * the prior state of the MpegEncContext.
823 void ff_MPV_decode_defaults(MpegEncContext *s)
825 ff_MPV_common_defaults(s);
828 static int init_er(MpegEncContext *s)
830 ERContext *er = &s->er;
831 int mb_array_size = s->mb_height * s->mb_stride;
834 er->avctx = s->avctx;
837 er->mb_index2xy = s->mb_index2xy;
838 er->mb_num = s->mb_num;
839 er->mb_width = s->mb_width;
840 er->mb_height = s->mb_height;
841 er->mb_stride = s->mb_stride;
842 er->b8_stride = s->b8_stride;
844 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
845 er->error_status_table = av_mallocz(mb_array_size);
846 if (!er->er_temp_buffer || !er->error_status_table)
849 er->mbskip_table = s->mbskip_table;
850 er->mbintra_table = s->mbintra_table;
852 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
853 er->dc_val[i] = s->dc_val[i];
855 er->decode_mb = mpeg_er_decode_mb;
860 av_freep(&er->er_temp_buffer);
861 av_freep(&er->error_status_table);
862 return AVERROR(ENOMEM);
866 * Initialize and allocates MpegEncContext fields dependent on the resolution.
868 static int init_context_frame(MpegEncContext *s)
870 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
872 s->mb_width = (s->width + 15) / 16;
873 s->mb_stride = s->mb_width + 1;
874 s->b8_stride = s->mb_width * 2 + 1;
875 s->b4_stride = s->mb_width * 4 + 1;
876 mb_array_size = s->mb_height * s->mb_stride;
877 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
879 /* set default edge pos, will be overriden
880 * in decode_header if needed */
881 s->h_edge_pos = s->mb_width * 16;
882 s->v_edge_pos = s->mb_height * 16;
884 s->mb_num = s->mb_width * s->mb_height;
889 s->block_wrap[3] = s->b8_stride;
891 s->block_wrap[5] = s->mb_stride;
893 y_size = s->b8_stride * (2 * s->mb_height + 1);
894 c_size = s->mb_stride * (s->mb_height + 1);
895 yc_size = y_size + 2 * c_size;
897 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int), fail); // error ressilience code looks cleaner with this
898 for (y = 0; y < s->mb_height; y++)
899 for (x = 0; x < s->mb_width; x++)
900 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
902 s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
905 /* Allocate MV tables */
906 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
907 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
908 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
909 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
910 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
911 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base, mv_table_size * 2 * sizeof(int16_t), fail)
912 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
913 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
914 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
915 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
916 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
917 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
919 /* Allocate MB type table */
920 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size * sizeof(uint16_t), fail) // needed for encoding
922 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
924 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
925 mb_array_size * sizeof(float), fail);
926 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
927 mb_array_size * sizeof(float), fail);
931 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
932 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
933 /* interlaced direct mode decoding tables */
934 for (i = 0; i < 2; i++) {
936 for (j = 0; j < 2; j++) {
937 for (k = 0; k < 2; k++) {
938 FF_ALLOCZ_OR_GOTO(s->avctx,
939 s->b_field_mv_table_base[i][j][k],
940 mv_table_size * 2 * sizeof(int16_t),
942 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
945 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail)
946 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail)
947 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
949 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail)
952 if (s->out_format == FMT_H263) {
954 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail);
955 s->coded_block = s->coded_block_base + s->b8_stride + 1;
957 /* cbp, ac_pred, pred_dir */
958 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail);
959 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail);
962 if (s->h263_pred || s->h263_plus || !s->encoding) {
964 // MN: we need these for error resilience of intra-frames
965 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail);
966 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
967 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
968 s->dc_val[2] = s->dc_val[1] + c_size;
969 for (i = 0; i < yc_size; i++)
970 s->dc_val_base[i] = 1024;
973 /* which mb is a intra block */
974 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
975 memset(s->mbintra_table, 1, mb_array_size);
977 /* init macroblock skip table */
978 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
979 // Note the + 1 is for a quicker mpeg4 slice_end detection
983 return AVERROR(ENOMEM);
987 * init common structure for both encoder and decoder.
988 * this assumes that some variables like width/height are already set
990 av_cold int ff_MPV_common_init(MpegEncContext *s)
993 int nb_slices = (HAVE_THREADS &&
994 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
995 s->avctx->thread_count : 1;
997 if (s->encoding && s->avctx->slices)
998 nb_slices = s->avctx->slices;
1000 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1001 s->mb_height = (s->height + 31) / 32 * 2;
1003 s->mb_height = (s->height + 15) / 16;
1005 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1006 av_log(s->avctx, AV_LOG_ERROR,
1007 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1011 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1014 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1016 max_slices = MAX_THREADS;
1017 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1018 " reducing to %d\n", nb_slices, max_slices);
1019 nb_slices = max_slices;
1022 if ((s->width || s->height) &&
1023 av_image_check_size(s->width, s->height, 0, s->avctx))
1026 ff_dct_common_init(s);
1028 s->flags = s->avctx->flags;
1029 s->flags2 = s->avctx->flags2;
1031 /* set chroma shifts */
1032 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
1034 /* convert fourcc to upper case */
1035 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
1036 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
1038 s->avctx->coded_frame = &s->current_picture.f;
1041 if (s->msmpeg4_version) {
1042 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats,
1043 2 * 2 * (MAX_LEVEL + 1) *
1044 (MAX_RUN + 1) * 2 * sizeof(int), fail);
1046 FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail);
1048 FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix, 64 * 32 * sizeof(int), fail)
1049 FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix, 64 * 32 * sizeof(int), fail)
1050 FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix, 64 * 32 * sizeof(int), fail)
1051 FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail)
1052 FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail)
1053 FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64 * 32 * 2 * sizeof(uint16_t), fail)
1054 FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail)
1055 FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture *), fail)
1057 if (s->avctx->noise_reduction) {
1058 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail);
1062 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1063 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1064 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1065 avcodec_get_frame_defaults(&s->picture[i].f);
1067 memset(&s->next_picture, 0, sizeof(s->next_picture));
1068 memset(&s->last_picture, 0, sizeof(s->last_picture));
1069 memset(&s->current_picture, 0, sizeof(s->current_picture));
1070 avcodec_get_frame_defaults(&s->next_picture.f);
1071 avcodec_get_frame_defaults(&s->last_picture.f);
1072 avcodec_get_frame_defaults(&s->current_picture.f);
1074 if (init_context_frame(s))
1077 s->parse_context.state = -1;
1079 s->context_initialized = 1;
1080 s->thread_context[0] = s;
1082 // if (s->width && s->height) {
1083 if (nb_slices > 1) {
1084 for (i = 1; i < nb_slices; i++) {
1085 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1086 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1089 for (i = 0; i < nb_slices; i++) {
1090 if (init_duplicate_context(s->thread_context[i]) < 0)
1092 s->thread_context[i]->start_mb_y =
1093 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1094 s->thread_context[i]->end_mb_y =
1095 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1098 if (init_duplicate_context(s) < 0)
1101 s->end_mb_y = s->mb_height;
1103 s->slice_context_count = nb_slices;
1108 ff_MPV_common_end(s);
1113 * Frees and resets MpegEncContext fields depending on the resolution.
1114 * Is used during resolution changes to avoid a full reinitialization of the
1117 static int free_context_frame(MpegEncContext *s)
1121 av_freep(&s->mb_type);
1122 av_freep(&s->p_mv_table_base);
1123 av_freep(&s->b_forw_mv_table_base);
1124 av_freep(&s->b_back_mv_table_base);
1125 av_freep(&s->b_bidir_forw_mv_table_base);
1126 av_freep(&s->b_bidir_back_mv_table_base);
1127 av_freep(&s->b_direct_mv_table_base);
1128 s->p_mv_table = NULL;
1129 s->b_forw_mv_table = NULL;
1130 s->b_back_mv_table = NULL;
1131 s->b_bidir_forw_mv_table = NULL;
1132 s->b_bidir_back_mv_table = NULL;
1133 s->b_direct_mv_table = NULL;
1134 for (i = 0; i < 2; i++) {
1135 for (j = 0; j < 2; j++) {
1136 for (k = 0; k < 2; k++) {
1137 av_freep(&s->b_field_mv_table_base[i][j][k]);
1138 s->b_field_mv_table[i][j][k] = NULL;
1140 av_freep(&s->b_field_select_table[i][j]);
1141 av_freep(&s->p_field_mv_table_base[i][j]);
1142 s->p_field_mv_table[i][j] = NULL;
1144 av_freep(&s->p_field_select_table[i]);
1147 av_freep(&s->dc_val_base);
1148 av_freep(&s->coded_block_base);
1149 av_freep(&s->mbintra_table);
1150 av_freep(&s->cbp_table);
1151 av_freep(&s->pred_dir_table);
1153 av_freep(&s->mbskip_table);
1155 av_freep(&s->er.error_status_table);
1156 av_freep(&s->er.er_temp_buffer);
1157 av_freep(&s->mb_index2xy);
1158 av_freep(&s->lambda_table);
1160 av_freep(&s->cplx_tab);
1161 av_freep(&s->bits_tab);
1163 s->linesize = s->uvlinesize = 0;
1168 int ff_MPV_common_frame_size_change(MpegEncContext *s)
1172 if (s->slice_context_count > 1) {
1173 for (i = 0; i < s->slice_context_count; i++) {
1174 free_duplicate_context(s->thread_context[i]);
1176 for (i = 1; i < s->slice_context_count; i++) {
1177 av_freep(&s->thread_context[i]);
1180 free_duplicate_context(s);
1182 if ((err = free_context_frame(s)) < 0)
1186 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1187 s->picture[i].needs_realloc = 1;
1190 s->last_picture_ptr =
1191 s->next_picture_ptr =
1192 s->current_picture_ptr = NULL;
1195 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1196 s->mb_height = (s->height + 31) / 32 * 2;
1198 s->mb_height = (s->height + 15) / 16;
1200 if ((s->width || s->height) &&
1201 av_image_check_size(s->width, s->height, 0, s->avctx))
1202 return AVERROR_INVALIDDATA;
1204 if ((err = init_context_frame(s)))
1207 s->thread_context[0] = s;
1209 if (s->width && s->height) {
1210 int nb_slices = s->slice_context_count;
1211 if (nb_slices > 1) {
1212 for (i = 1; i < nb_slices; i++) {
1213 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1214 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1217 for (i = 0; i < nb_slices; i++) {
1218 if (init_duplicate_context(s->thread_context[i]) < 0)
1220 s->thread_context[i]->start_mb_y =
1221 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1222 s->thread_context[i]->end_mb_y =
1223 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1226 err = init_duplicate_context(s);
1230 s->end_mb_y = s->mb_height;
1232 s->slice_context_count = nb_slices;
1237 ff_MPV_common_end(s);
1241 /* init common structure for both encoder and decoder */
1242 void ff_MPV_common_end(MpegEncContext *s)
1246 if (s->slice_context_count > 1) {
1247 for (i = 0; i < s->slice_context_count; i++) {
1248 free_duplicate_context(s->thread_context[i]);
1250 for (i = 1; i < s->slice_context_count; i++) {
1251 av_freep(&s->thread_context[i]);
1253 s->slice_context_count = 1;
1254 } else free_duplicate_context(s);
1256 av_freep(&s->parse_context.buffer);
1257 s->parse_context.buffer_size = 0;
1259 av_freep(&s->bitstream_buffer);
1260 s->allocated_bitstream_buffer_size = 0;
1262 av_freep(&s->avctx->stats_out);
1263 av_freep(&s->ac_stats);
1265 if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix);
1266 if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16);
1267 s->q_chroma_intra_matrix= NULL;
1268 s->q_chroma_intra_matrix16= NULL;
1269 av_freep(&s->q_intra_matrix);
1270 av_freep(&s->q_inter_matrix);
1271 av_freep(&s->q_intra_matrix16);
1272 av_freep(&s->q_inter_matrix16);
1273 av_freep(&s->input_picture);
1274 av_freep(&s->reordered_input_picture);
1275 av_freep(&s->dct_offset);
1278 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1279 free_picture_tables(&s->picture[i]);
1280 ff_mpeg_unref_picture(s, &s->picture[i]);
1283 av_freep(&s->picture);
1284 free_picture_tables(&s->last_picture);
1285 ff_mpeg_unref_picture(s, &s->last_picture);
1286 free_picture_tables(&s->current_picture);
1287 ff_mpeg_unref_picture(s, &s->current_picture);
1288 free_picture_tables(&s->next_picture);
1289 ff_mpeg_unref_picture(s, &s->next_picture);
1290 free_picture_tables(&s->new_picture);
1291 ff_mpeg_unref_picture(s, &s->new_picture);
1293 free_context_frame(s);
1295 s->context_initialized = 0;
1296 s->last_picture_ptr =
1297 s->next_picture_ptr =
1298 s->current_picture_ptr = NULL;
1299 s->linesize = s->uvlinesize = 0;
1302 av_cold void ff_init_rl(RLTable *rl,
1303 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1305 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1306 uint8_t index_run[MAX_RUN + 1];
1307 int last, run, level, start, end, i;
1309 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1310 if (static_store && rl->max_level[0])
1313 /* compute max_level[], max_run[] and index_run[] */
1314 for (last = 0; last < 2; last++) {
1323 memset(max_level, 0, MAX_RUN + 1);
1324 memset(max_run, 0, MAX_LEVEL + 1);
1325 memset(index_run, rl->n, MAX_RUN + 1);
1326 for (i = start; i < end; i++) {
1327 run = rl->table_run[i];
1328 level = rl->table_level[i];
1329 if (index_run[run] == rl->n)
1331 if (level > max_level[run])
1332 max_level[run] = level;
1333 if (run > max_run[level])
1334 max_run[level] = run;
1337 rl->max_level[last] = static_store[last];
1339 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1340 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1342 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1344 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1345 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1347 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1349 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1350 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1354 av_cold void ff_init_vlc_rl(RLTable *rl)
1358 for (q = 0; q < 32; q++) {
1360 int qadd = (q - 1) | 1;
1366 for (i = 0; i < rl->vlc.table_size; i++) {
1367 int code = rl->vlc.table[i][0];
1368 int len = rl->vlc.table[i][1];
1371 if (len == 0) { // illegal code
1374 } else if (len < 0) { // more bits needed
1378 if (code == rl->n) { // esc
1382 run = rl->table_run[code] + 1;
1383 level = rl->table_level[code] * qmul + qadd;
1384 if (code >= rl->last) run += 192;
1387 rl->rl_vlc[q][i].len = len;
1388 rl->rl_vlc[q][i].level = level;
1389 rl->rl_vlc[q][i].run = run;
1394 void ff_release_unused_pictures(MpegEncContext*s, int remove_current)
1398 /* release non reference frames */
1399 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1400 if (!s->picture[i].reference &&
1401 (remove_current || &s->picture[i] != s->current_picture_ptr)) {
1402 ff_mpeg_unref_picture(s, &s->picture[i]);
1407 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1409 if (pic == s->last_picture_ptr)
1411 if (pic->f.data[0] == NULL)
1413 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1418 static int find_unused_picture(MpegEncContext *s, int shared)
1423 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1424 if (s->picture[i].f.data[0] == NULL && &s->picture[i] != s->last_picture_ptr)
1428 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1429 if (pic_is_unused(s, &s->picture[i]))
1434 av_log(s->avctx, AV_LOG_FATAL,
1435 "Internal error, picture buffer overflow\n");
1436 /* We could return -1, but the codec would crash trying to draw into a
1437 * non-existing frame anyway. This is safer than waiting for a random crash.
1438 * Also the return of this is never useful, an encoder must only allocate
1439 * as much as allowed in the specification. This has no relationship to how
1440 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1441 * enough for such valid streams).
1442 * Plus, a decoder has to check stream validity and remove frames if too
1443 * many reference frames are around. Waiting for "OOM" is not correct at
1444 * all. Similarly, missing reference frames have to be replaced by
1445 * interpolated/MC frames, anything else is a bug in the codec ...
1451 int ff_find_unused_picture(MpegEncContext *s, int shared)
1453 int ret = find_unused_picture(s, shared);
1455 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1456 if (s->picture[ret].needs_realloc) {
1457 s->picture[ret].needs_realloc = 0;
1458 free_picture_tables(&s->picture[ret]);
1459 ff_mpeg_unref_picture(s, &s->picture[ret]);
1460 avcodec_get_frame_defaults(&s->picture[ret].f);
1466 static void update_noise_reduction(MpegEncContext *s)
1470 for (intra = 0; intra < 2; intra++) {
1471 if (s->dct_count[intra] > (1 << 16)) {
1472 for (i = 0; i < 64; i++) {
1473 s->dct_error_sum[intra][i] >>= 1;
1475 s->dct_count[intra] >>= 1;
1478 for (i = 0; i < 64; i++) {
1479 s->dct_offset[intra][i] = (s->avctx->noise_reduction *
1480 s->dct_count[intra] +
1481 s->dct_error_sum[intra][i] / 2) /
1482 (s->dct_error_sum[intra][i] + 1);
1488 * generic function for encode/decode called after coding/decoding
1489 * the header and before a frame is coded/decoded.
1491 int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1497 if (!ff_thread_can_start_frame(avctx)) {
1498 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1502 /* mark & release old frames */
1503 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1504 s->last_picture_ptr != s->next_picture_ptr &&
1505 s->last_picture_ptr->f.data[0]) {
1506 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1509 /* release forgotten pictures */
1510 /* if (mpeg124/h263) */
1512 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1513 if (&s->picture[i] != s->last_picture_ptr &&
1514 &s->picture[i] != s->next_picture_ptr &&
1515 s->picture[i].reference && !s->picture[i].needs_realloc) {
1516 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1517 av_log(avctx, AV_LOG_ERROR,
1518 "releasing zombie picture\n");
1519 ff_mpeg_unref_picture(s, &s->picture[i]);
1524 ff_mpeg_unref_picture(s, &s->current_picture);
1527 ff_release_unused_pictures(s, 1);
1529 if (s->current_picture_ptr &&
1530 s->current_picture_ptr->f.data[0] == NULL) {
1531 // we already have a unused image
1532 // (maybe it was set before reading the header)
1533 pic = s->current_picture_ptr;
1535 i = ff_find_unused_picture(s, 0);
1537 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1540 pic = &s->picture[i];
1544 if (!s->droppable) {
1545 if (s->pict_type != AV_PICTURE_TYPE_B)
1549 pic->f.coded_picture_number = s->coded_picture_number++;
1551 if (ff_alloc_picture(s, pic, 0) < 0)
1554 s->current_picture_ptr = pic;
1555 // FIXME use only the vars from current_pic
1556 s->current_picture_ptr->f.top_field_first = s->top_field_first;
1557 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1558 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1559 if (s->picture_structure != PICT_FRAME)
1560 s->current_picture_ptr->f.top_field_first =
1561 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1563 s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame &&
1564 !s->progressive_sequence;
1565 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1568 s->current_picture_ptr->f.pict_type = s->pict_type;
1569 // if (s->flags && CODEC_FLAG_QSCALE)
1570 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1571 s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1573 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1574 s->current_picture_ptr)) < 0)
1577 if (s->pict_type != AV_PICTURE_TYPE_B) {
1578 s->last_picture_ptr = s->next_picture_ptr;
1580 s->next_picture_ptr = s->current_picture_ptr;
1582 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1583 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1584 s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL,
1585 s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL,
1586 s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL,
1587 s->pict_type, s->droppable);
1589 if ((s->last_picture_ptr == NULL ||
1590 s->last_picture_ptr->f.data[0] == NULL) &&
1591 (s->pict_type != AV_PICTURE_TYPE_I ||
1592 s->picture_structure != PICT_FRAME)) {
1593 int h_chroma_shift, v_chroma_shift;
1594 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1595 &h_chroma_shift, &v_chroma_shift);
1596 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f.data[0])
1597 av_log(avctx, AV_LOG_DEBUG,
1598 "allocating dummy last picture for B frame\n");
1599 else if (s->pict_type != AV_PICTURE_TYPE_I)
1600 av_log(avctx, AV_LOG_ERROR,
1601 "warning: first frame is no keyframe\n");
1602 else if (s->picture_structure != PICT_FRAME)
1603 av_log(avctx, AV_LOG_DEBUG,
1604 "allocate dummy last picture for field based first keyframe\n");
1606 /* Allocate a dummy frame */
1607 i = ff_find_unused_picture(s, 0);
1609 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1612 s->last_picture_ptr = &s->picture[i];
1613 s->last_picture_ptr->f.key_frame = 0;
1614 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1615 s->last_picture_ptr = NULL;
1619 memset(s->last_picture_ptr->f.data[0], 0x80,
1620 avctx->height * s->last_picture_ptr->f.linesize[0]);
1621 memset(s->last_picture_ptr->f.data[1], 0x80,
1622 (avctx->height >> v_chroma_shift) *
1623 s->last_picture_ptr->f.linesize[1]);
1624 memset(s->last_picture_ptr->f.data[2], 0x80,
1625 (avctx->height >> v_chroma_shift) *
1626 s->last_picture_ptr->f.linesize[2]);
1628 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1629 for(i=0; i<avctx->height; i++)
1630 memset(s->last_picture_ptr->f.data[0] + s->last_picture_ptr->f.linesize[0]*i, 16, avctx->width);
1633 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1634 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1636 if ((s->next_picture_ptr == NULL ||
1637 s->next_picture_ptr->f.data[0] == NULL) &&
1638 s->pict_type == AV_PICTURE_TYPE_B) {
1639 /* Allocate a dummy frame */
1640 i = ff_find_unused_picture(s, 0);
1642 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1645 s->next_picture_ptr = &s->picture[i];
1646 s->next_picture_ptr->f.key_frame = 0;
1647 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1648 s->next_picture_ptr = NULL;
1651 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1652 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1655 #if 0 // BUFREF-FIXME
1656 memset(s->last_picture.f.data, 0, sizeof(s->last_picture.f.data));
1657 memset(s->next_picture.f.data, 0, sizeof(s->next_picture.f.data));
1659 if (s->last_picture_ptr) {
1660 ff_mpeg_unref_picture(s, &s->last_picture);
1661 if (s->last_picture_ptr->f.data[0] &&
1662 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1663 s->last_picture_ptr)) < 0)
1666 if (s->next_picture_ptr) {
1667 ff_mpeg_unref_picture(s, &s->next_picture);
1668 if (s->next_picture_ptr->f.data[0] &&
1669 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1670 s->next_picture_ptr)) < 0)
1674 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1675 s->last_picture_ptr->f.data[0]));
1677 if (s->picture_structure!= PICT_FRAME) {
1679 for (i = 0; i < 4; i++) {
1680 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1681 s->current_picture.f.data[i] +=
1682 s->current_picture.f.linesize[i];
1684 s->current_picture.f.linesize[i] *= 2;
1685 s->last_picture.f.linesize[i] *= 2;
1686 s->next_picture.f.linesize[i] *= 2;
1690 s->err_recognition = avctx->err_recognition;
1692 /* set dequantizer, we can't do it during init as
1693 * it might change for mpeg4 and we can't do it in the header
1694 * decode as init is not called for mpeg4 there yet */
1695 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1696 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1697 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1698 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1699 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1700 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1702 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1703 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1706 if (s->dct_error_sum) {
1707 av_assert2(s->avctx->noise_reduction && s->encoding);
1708 update_noise_reduction(s);
1711 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
1712 return ff_xvmc_field_start(s, avctx);
1717 /* generic function for encode/decode called after a
1718 * frame has been coded/decoded. */
1719 void ff_MPV_frame_end(MpegEncContext *s)
1721 /* redraw edges for the frame if decoding didn't complete */
1722 // just to make sure that all data is rendered.
1723 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) {
1724 ff_xvmc_field_end(s);
1725 } else if ((s->er.error_count || s->encoding || !(s->avctx->codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND)) &&
1726 !s->avctx->hwaccel &&
1727 !(s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) &&
1728 s->unrestricted_mv &&
1729 s->current_picture.reference &&
1731 !(s->flags & CODEC_FLAG_EMU_EDGE) &&
1734 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1735 int hshift = desc->log2_chroma_w;
1736 int vshift = desc->log2_chroma_h;
1737 s->dsp.draw_edges(s->current_picture.f.data[0], s->current_picture.f.linesize[0],
1738 s->h_edge_pos, s->v_edge_pos,
1739 EDGE_WIDTH, EDGE_WIDTH,
1740 EDGE_TOP | EDGE_BOTTOM);
1741 s->dsp.draw_edges(s->current_picture.f.data[1], s->current_picture.f.linesize[1],
1742 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1743 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1744 EDGE_TOP | EDGE_BOTTOM);
1745 s->dsp.draw_edges(s->current_picture.f.data[2], s->current_picture.f.linesize[2],
1746 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1747 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1748 EDGE_TOP | EDGE_BOTTOM);
1753 s->last_pict_type = s->pict_type;
1754 s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f.quality;
1755 if (s->pict_type!= AV_PICTURE_TYPE_B) {
1756 s->last_non_b_pict_type = s->pict_type;
1759 /* copy back current_picture variables */
1760 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1761 if (s->picture[i].f.data[0] == s->current_picture.f.data[0]) {
1762 s->picture[i] = s->current_picture;
1766 av_assert0(i < MAX_PICTURE_COUNT);
1769 // clear copies, to avoid confusion
1771 memset(&s->last_picture, 0, sizeof(Picture));
1772 memset(&s->next_picture, 0, sizeof(Picture));
1773 memset(&s->current_picture, 0, sizeof(Picture));
1775 s->avctx->coded_frame = &s->current_picture_ptr->f;
1777 if (s->current_picture.reference)
1778 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1782 * Draw a line from (ex, ey) -> (sx, sy).
1783 * @param w width of the image
1784 * @param h height of the image
1785 * @param stride stride/linesize of the image
1786 * @param color color of the arrow
1788 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1789 int w, int h, int stride, int color)
1793 sx = av_clip(sx, 0, w - 1);
1794 sy = av_clip(sy, 0, h - 1);
1795 ex = av_clip(ex, 0, w - 1);
1796 ey = av_clip(ey, 0, h - 1);
1798 buf[sy * stride + sx] += color;
1800 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1802 FFSWAP(int, sx, ex);
1803 FFSWAP(int, sy, ey);
1805 buf += sx + sy * stride;
1807 f = ((ey - sy) << 16) / ex;
1808 for (x = 0; x <= ex; x++) {
1810 fr = (x * f) & 0xFFFF;
1811 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1812 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1816 FFSWAP(int, sx, ex);
1817 FFSWAP(int, sy, ey);
1819 buf += sx + sy * stride;
1822 f = ((ex - sx) << 16) / ey;
1825 for(y= 0; y <= ey; y++){
1827 fr = (y*f) & 0xFFFF;
1828 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1829 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1835 * Draw an arrow from (ex, ey) -> (sx, sy).
1836 * @param w width of the image
1837 * @param h height of the image
1838 * @param stride stride/linesize of the image
1839 * @param color color of the arrow
1841 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1842 int ey, int w, int h, int stride, int color)
1846 sx = av_clip(sx, -100, w + 100);
1847 sy = av_clip(sy, -100, h + 100);
1848 ex = av_clip(ex, -100, w + 100);
1849 ey = av_clip(ey, -100, h + 100);
1854 if (dx * dx + dy * dy > 3 * 3) {
1857 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1859 // FIXME subpixel accuracy
1860 rx = ROUNDED_DIV(rx * 3 << 4, length);
1861 ry = ROUNDED_DIV(ry * 3 << 4, length);
1863 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1864 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1866 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1870 * Print debugging info for the given picture.
1872 void ff_print_debug_info2(AVCodecContext *avctx, Picture *p, AVFrame *pict, uint8_t *mbskip_table,
1874 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1876 if (avctx->hwaccel || !p || !p->mb_type
1877 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1881 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1884 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1885 av_get_picture_type_char(pict->pict_type));
1886 for (y = 0; y < mb_height; y++) {
1887 for (x = 0; x < mb_width; x++) {
1888 if (avctx->debug & FF_DEBUG_SKIP) {
1889 int count = mbskip_table[x + y * mb_stride];
1892 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1894 if (avctx->debug & FF_DEBUG_QP) {
1895 av_log(avctx, AV_LOG_DEBUG, "%2d",
1896 p->qscale_table[x + y * mb_stride]);
1898 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1899 int mb_type = p->mb_type[x + y * mb_stride];
1900 // Type & MV direction
1901 if (IS_PCM(mb_type))
1902 av_log(avctx, AV_LOG_DEBUG, "P");
1903 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1904 av_log(avctx, AV_LOG_DEBUG, "A");
1905 else if (IS_INTRA4x4(mb_type))
1906 av_log(avctx, AV_LOG_DEBUG, "i");
1907 else if (IS_INTRA16x16(mb_type))
1908 av_log(avctx, AV_LOG_DEBUG, "I");
1909 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1910 av_log(avctx, AV_LOG_DEBUG, "d");
1911 else if (IS_DIRECT(mb_type))
1912 av_log(avctx, AV_LOG_DEBUG, "D");
1913 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1914 av_log(avctx, AV_LOG_DEBUG, "g");
1915 else if (IS_GMC(mb_type))
1916 av_log(avctx, AV_LOG_DEBUG, "G");
1917 else if (IS_SKIP(mb_type))
1918 av_log(avctx, AV_LOG_DEBUG, "S");
1919 else if (!USES_LIST(mb_type, 1))
1920 av_log(avctx, AV_LOG_DEBUG, ">");
1921 else if (!USES_LIST(mb_type, 0))
1922 av_log(avctx, AV_LOG_DEBUG, "<");
1924 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1925 av_log(avctx, AV_LOG_DEBUG, "X");
1929 if (IS_8X8(mb_type))
1930 av_log(avctx, AV_LOG_DEBUG, "+");
1931 else if (IS_16X8(mb_type))
1932 av_log(avctx, AV_LOG_DEBUG, "-");
1933 else if (IS_8X16(mb_type))
1934 av_log(avctx, AV_LOG_DEBUG, "|");
1935 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1936 av_log(avctx, AV_LOG_DEBUG, " ");
1938 av_log(avctx, AV_LOG_DEBUG, "?");
1941 if (IS_INTERLACED(mb_type))
1942 av_log(avctx, AV_LOG_DEBUG, "=");
1944 av_log(avctx, AV_LOG_DEBUG, " ");
1947 av_log(avctx, AV_LOG_DEBUG, "\n");
1951 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1952 (avctx->debug_mv)) {
1953 const int shift = 1 + quarter_sample;
1957 int h_chroma_shift, v_chroma_shift, block_height;
1958 const int width = avctx->width;
1959 const int height = avctx->height;
1960 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1961 const int mv_stride = (mb_width << mv_sample_log2) +
1962 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1964 *low_delay = 0; // needed to see the vectors without trashing the buffers
1966 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1968 av_frame_make_writable(pict);
1970 pict->opaque = NULL;
1971 ptr = pict->data[0];
1972 block_height = 16 >> v_chroma_shift;
1974 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1976 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1977 const int mb_index = mb_x + mb_y * mb_stride;
1978 if ((avctx->debug_mv) && p->motion_val[0]) {
1980 for (type = 0; type < 3; type++) {
1984 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
1985 (pict->pict_type!= AV_PICTURE_TYPE_P))
1990 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
1991 (pict->pict_type!= AV_PICTURE_TYPE_B))
1996 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
1997 (pict->pict_type!= AV_PICTURE_TYPE_B))
2002 if (!USES_LIST(p->mb_type[mb_index], direction))
2005 if (IS_8X8(p->mb_type[mb_index])) {
2007 for (i = 0; i < 4; i++) {
2008 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2009 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2010 int xy = (mb_x * 2 + (i & 1) +
2011 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2012 int mx = (p->motion_val[direction][xy][0] >> shift) + sx;
2013 int my = (p->motion_val[direction][xy][1] >> shift) + sy;
2014 draw_arrow(ptr, sx, sy, mx, my, width,
2015 height, pict->linesize[0], 100);
2017 } else if (IS_16X8(p->mb_type[mb_index])) {
2019 for (i = 0; i < 2; i++) {
2020 int sx = mb_x * 16 + 8;
2021 int sy = mb_y * 16 + 4 + 8 * i;
2022 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2023 int mx = (p->motion_val[direction][xy][0] >> shift);
2024 int my = (p->motion_val[direction][xy][1] >> shift);
2026 if (IS_INTERLACED(p->mb_type[mb_index]))
2029 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2030 height, pict->linesize[0], 100);
2032 } else if (IS_8X16(p->mb_type[mb_index])) {
2034 for (i = 0; i < 2; i++) {
2035 int sx = mb_x * 16 + 4 + 8 * i;
2036 int sy = mb_y * 16 + 8;
2037 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2038 int mx = p->motion_val[direction][xy][0] >> shift;
2039 int my = p->motion_val[direction][xy][1] >> shift;
2041 if (IS_INTERLACED(p->mb_type[mb_index]))
2044 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2045 height, pict->linesize[0], 100);
2048 int sx= mb_x * 16 + 8;
2049 int sy= mb_y * 16 + 8;
2050 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2051 int mx= (p->motion_val[direction][xy][0]>>shift) + sx;
2052 int my= (p->motion_val[direction][xy][1]>>shift) + sy;
2053 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100);
2057 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2058 uint64_t c = (p->qscale_table[mb_index] * 128 / 31) *
2059 0x0101010101010101ULL;
2061 for (y = 0; y < block_height; y++) {
2062 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2063 (block_height * mb_y + y) *
2064 pict->linesize[1]) = c;
2065 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2066 (block_height * mb_y + y) *
2067 pict->linesize[2]) = c;
2070 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2072 int mb_type = p->mb_type[mb_index];
2075 #define COLOR(theta, r) \
2076 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2077 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2081 if (IS_PCM(mb_type)) {
2083 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2084 IS_INTRA16x16(mb_type)) {
2086 } else if (IS_INTRA4x4(mb_type)) {
2088 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2090 } else if (IS_DIRECT(mb_type)) {
2092 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2094 } else if (IS_GMC(mb_type)) {
2096 } else if (IS_SKIP(mb_type)) {
2098 } else if (!USES_LIST(mb_type, 1)) {
2100 } else if (!USES_LIST(mb_type, 0)) {
2103 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2107 u *= 0x0101010101010101ULL;
2108 v *= 0x0101010101010101ULL;
2109 for (y = 0; y < block_height; y++) {
2110 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2111 (block_height * mb_y + y) * pict->linesize[1]) = u;
2112 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2113 (block_height * mb_y + y) * pict->linesize[2]) = v;
2117 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2118 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2119 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2120 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2121 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2123 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2124 for (y = 0; y < 16; y++)
2125 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2126 pict->linesize[0]] ^= 0x80;
2128 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2129 int dm = 1 << (mv_sample_log2 - 2);
2130 for (i = 0; i < 4; i++) {
2131 int sx = mb_x * 16 + 8 * (i & 1);
2132 int sy = mb_y * 16 + 8 * (i >> 1);
2133 int xy = (mb_x * 2 + (i & 1) +
2134 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2136 int32_t *mv = (int32_t *) &p->motion_val[0][xy];
2137 if (mv[0] != mv[dm] ||
2138 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2139 for (y = 0; y < 8; y++)
2140 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2141 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2142 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2143 pict->linesize[0]) ^= 0x8080808080808080ULL;
2147 if (IS_INTERLACED(mb_type) &&
2148 avctx->codec->id == AV_CODEC_ID_H264) {
2152 mbskip_table[mb_index] = 0;
2158 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2160 ff_print_debug_info2(s->avctx, p, pict, s->mbskip_table, &s->low_delay,
2161 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2164 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2166 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2167 int offset = 2*s->mb_stride + 1;
2169 return AVERROR(ENOMEM);
2170 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2171 ref->size -= offset;
2172 ref->data += offset;
2173 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2176 static inline int hpel_motion_lowres(MpegEncContext *s,
2177 uint8_t *dest, uint8_t *src,
2178 int field_based, int field_select,
2179 int src_x, int src_y,
2180 int width, int height, int stride,
2181 int h_edge_pos, int v_edge_pos,
2182 int w, int h, h264_chroma_mc_func *pix_op,
2183 int motion_x, int motion_y)
2185 const int lowres = s->avctx->lowres;
2186 const int op_index = FFMIN(lowres, 3);
2187 const int s_mask = (2 << lowres) - 1;
2191 if (s->quarter_sample) {
2196 sx = motion_x & s_mask;
2197 sy = motion_y & s_mask;
2198 src_x += motion_x >> lowres + 1;
2199 src_y += motion_y >> lowres + 1;
2201 src += src_y * stride + src_x;
2203 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2204 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2205 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w + 1,
2206 (h + 1) << field_based, src_x,
2207 src_y << field_based,
2210 src = s->edge_emu_buffer;
2214 sx = (sx << 2) >> lowres;
2215 sy = (sy << 2) >> lowres;
2218 pix_op[op_index](dest, src, stride, h, sx, sy);
2222 /* apply one mpeg motion vector to the three components */
2223 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2230 uint8_t **ref_picture,
2231 h264_chroma_mc_func *pix_op,
2232 int motion_x, int motion_y,
2235 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2236 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy,
2238 const int lowres = s->avctx->lowres;
2239 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 3);
2240 const int block_s = 8>>lowres;
2241 const int s_mask = (2 << lowres) - 1;
2242 const int h_edge_pos = s->h_edge_pos >> lowres;
2243 const int v_edge_pos = s->v_edge_pos >> lowres;
2244 linesize = s->current_picture.f.linesize[0] << field_based;
2245 uvlinesize = s->current_picture.f.linesize[1] << field_based;
2247 // FIXME obviously not perfect but qpel will not work in lowres anyway
2248 if (s->quarter_sample) {
2254 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2257 sx = motion_x & s_mask;
2258 sy = motion_y & s_mask;
2259 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2260 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2262 if (s->out_format == FMT_H263) {
2263 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2264 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2265 uvsrc_x = src_x >> 1;
2266 uvsrc_y = src_y >> 1;
2267 } else if (s->out_format == FMT_H261) {
2268 // even chroma mv's are full pel in H261
2271 uvsx = (2 * mx) & s_mask;
2272 uvsy = (2 * my) & s_mask;
2273 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2274 uvsrc_y = mb_y * block_s + (my >> lowres);
2276 if(s->chroma_y_shift){
2281 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2282 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2284 if(s->chroma_x_shift){
2288 uvsy = motion_y & s_mask;
2290 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2293 uvsx = motion_x & s_mask;
2294 uvsy = motion_y & s_mask;
2301 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2302 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2303 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2305 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2306 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2307 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2308 linesize >> field_based, 17, 17 + field_based,
2309 src_x, src_y << field_based, h_edge_pos,
2311 ptr_y = s->edge_emu_buffer;
2312 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2313 uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
2314 s->vdsp.emulated_edge_mc(uvbuf , ptr_cb, uvlinesize >> field_based, 9,
2316 uvsrc_x, uvsrc_y << field_based,
2317 h_edge_pos >> 1, v_edge_pos >> 1);
2318 s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr, uvlinesize >> field_based, 9,
2320 uvsrc_x, uvsrc_y << field_based,
2321 h_edge_pos >> 1, v_edge_pos >> 1);
2323 ptr_cr = uvbuf + 16;
2327 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f.data
2329 dest_y += s->linesize;
2330 dest_cb += s->uvlinesize;
2331 dest_cr += s->uvlinesize;
2335 ptr_y += s->linesize;
2336 ptr_cb += s->uvlinesize;
2337 ptr_cr += s->uvlinesize;
2340 sx = (sx << 2) >> lowres;
2341 sy = (sy << 2) >> lowres;
2342 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2344 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2345 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2346 uvsx = (uvsx << 2) >> lowres;
2347 uvsy = (uvsy << 2) >> lowres;
2349 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2350 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2353 // FIXME h261 lowres loop filter
2356 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2357 uint8_t *dest_cb, uint8_t *dest_cr,
2358 uint8_t **ref_picture,
2359 h264_chroma_mc_func * pix_op,
2362 const int lowres = s->avctx->lowres;
2363 const int op_index = FFMIN(lowres, 3);
2364 const int block_s = 8 >> lowres;
2365 const int s_mask = (2 << lowres) - 1;
2366 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2367 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2368 int emu = 0, src_x, src_y, offset, sx, sy;
2371 if (s->quarter_sample) {
2376 /* In case of 8X8, we construct a single chroma motion vector
2377 with a special rounding */
2378 mx = ff_h263_round_chroma(mx);
2379 my = ff_h263_round_chroma(my);
2383 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2384 src_y = s->mb_y * block_s + (my >> lowres + 1);
2386 offset = src_y * s->uvlinesize + src_x;
2387 ptr = ref_picture[1] + offset;
2388 if (s->flags & CODEC_FLAG_EMU_EDGE) {
2389 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2390 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2391 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
2392 9, 9, src_x, src_y, h_edge_pos, v_edge_pos);
2393 ptr = s->edge_emu_buffer;
2397 sx = (sx << 2) >> lowres;
2398 sy = (sy << 2) >> lowres;
2399 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2401 ptr = ref_picture[2] + offset;
2403 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9,
2404 src_x, src_y, h_edge_pos, v_edge_pos);
2405 ptr = s->edge_emu_buffer;
2407 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2411 * motion compensation of a single macroblock
2413 * @param dest_y luma destination pointer
2414 * @param dest_cb chroma cb/u destination pointer
2415 * @param dest_cr chroma cr/v destination pointer
2416 * @param dir direction (0->forward, 1->backward)
2417 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2418 * @param pix_op halfpel motion compensation function (average or put normally)
2419 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2421 static inline void MPV_motion_lowres(MpegEncContext *s,
2422 uint8_t *dest_y, uint8_t *dest_cb,
2424 int dir, uint8_t **ref_picture,
2425 h264_chroma_mc_func *pix_op)
2429 const int lowres = s->avctx->lowres;
2430 const int block_s = 8 >>lowres;
2435 switch (s->mv_type) {
2437 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2439 ref_picture, pix_op,
2440 s->mv[dir][0][0], s->mv[dir][0][1],
2446 for (i = 0; i < 4; i++) {
2447 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2448 s->linesize) * block_s,
2449 ref_picture[0], 0, 0,
2450 (2 * mb_x + (i & 1)) * block_s,
2451 (2 * mb_y + (i >> 1)) * block_s,
2452 s->width, s->height, s->linesize,
2453 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2454 block_s, block_s, pix_op,
2455 s->mv[dir][i][0], s->mv[dir][i][1]);
2457 mx += s->mv[dir][i][0];
2458 my += s->mv[dir][i][1];
2461 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2462 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2466 if (s->picture_structure == PICT_FRAME) {
2468 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2469 1, 0, s->field_select[dir][0],
2470 ref_picture, pix_op,
2471 s->mv[dir][0][0], s->mv[dir][0][1],
2474 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2475 1, 1, s->field_select[dir][1],
2476 ref_picture, pix_op,
2477 s->mv[dir][1][0], s->mv[dir][1][1],
2480 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2481 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2482 ref_picture = s->current_picture_ptr->f.data;
2485 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2486 0, 0, s->field_select[dir][0],
2487 ref_picture, pix_op,
2489 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2493 for (i = 0; i < 2; i++) {
2494 uint8_t **ref2picture;
2496 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2497 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2498 ref2picture = ref_picture;
2500 ref2picture = s->current_picture_ptr->f.data;
2503 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2504 0, 0, s->field_select[dir][i],
2505 ref2picture, pix_op,
2506 s->mv[dir][i][0], s->mv[dir][i][1] +
2507 2 * block_s * i, block_s, mb_y >> 1);
2509 dest_y += 2 * block_s * s->linesize;
2510 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2511 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2515 if (s->picture_structure == PICT_FRAME) {
2516 for (i = 0; i < 2; i++) {
2518 for (j = 0; j < 2; j++) {
2519 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2521 ref_picture, pix_op,
2522 s->mv[dir][2 * i + j][0],
2523 s->mv[dir][2 * i + j][1],
2526 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2529 for (i = 0; i < 2; i++) {
2530 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2531 0, 0, s->picture_structure != i + 1,
2532 ref_picture, pix_op,
2533 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2534 2 * block_s, mb_y >> 1);
2536 // after put we make avg of the same block
2537 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2539 // opposite parity is always in the same
2540 // frame if this is second field
2541 if (!s->first_field) {
2542 ref_picture = s->current_picture_ptr->f.data;
2553 * find the lowest MB row referenced in the MVs
2555 int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
2557 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2558 int my, off, i, mvs;
2560 if (s->picture_structure != PICT_FRAME || s->mcsel)
2563 switch (s->mv_type) {
2577 for (i = 0; i < mvs; i++) {
2578 my = s->mv[dir][i][1]<<qpel_shift;
2579 my_max = FFMAX(my_max, my);
2580 my_min = FFMIN(my_min, my);
2583 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2585 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2587 return s->mb_height-1;
2590 /* put block[] to dest[] */
2591 static inline void put_dct(MpegEncContext *s,
2592 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2594 s->dct_unquantize_intra(s, block, i, qscale);
2595 s->dsp.idct_put (dest, line_size, block);
2598 /* add block[] to dest[] */
2599 static inline void add_dct(MpegEncContext *s,
2600 int16_t *block, int i, uint8_t *dest, int line_size)
2602 if (s->block_last_index[i] >= 0) {
2603 s->dsp.idct_add (dest, line_size, block);
2607 static inline void add_dequant_dct(MpegEncContext *s,
2608 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2610 if (s->block_last_index[i] >= 0) {
2611 s->dct_unquantize_inter(s, block, i, qscale);
2613 s->dsp.idct_add (dest, line_size, block);
2618 * Clean dc, ac, coded_block for the current non-intra MB.
2620 void ff_clean_intra_table_entries(MpegEncContext *s)
2622 int wrap = s->b8_stride;
2623 int xy = s->block_index[0];
2626 s->dc_val[0][xy + 1 ] =
2627 s->dc_val[0][xy + wrap] =
2628 s->dc_val[0][xy + 1 + wrap] = 1024;
2630 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2631 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2632 if (s->msmpeg4_version>=3) {
2633 s->coded_block[xy ] =
2634 s->coded_block[xy + 1 ] =
2635 s->coded_block[xy + wrap] =
2636 s->coded_block[xy + 1 + wrap] = 0;
2639 wrap = s->mb_stride;
2640 xy = s->mb_x + s->mb_y * wrap;
2642 s->dc_val[2][xy] = 1024;
2644 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2645 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2647 s->mbintra_table[xy]= 0;
2650 /* generic function called after a macroblock has been parsed by the
2651 decoder or after it has been encoded by the encoder.
2653 Important variables used:
2654 s->mb_intra : true if intra macroblock
2655 s->mv_dir : motion vector direction
2656 s->mv_type : motion vector type
2657 s->mv : motion vector
2658 s->interlaced_dct : true if interlaced dct used (mpeg2)
2660 static av_always_inline
2661 void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2662 int lowres_flag, int is_mpeg12)
2664 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2665 if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){
2666 ff_xvmc_decode_mb(s);//xvmc uses pblocks
2670 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2671 /* print DCT coefficients */
2673 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2675 for(j=0; j<64; j++){
2676 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
2678 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2682 s->current_picture.qscale_table[mb_xy] = s->qscale;
2684 /* update DC predictors for P macroblocks */
2686 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2687 if(s->mbintra_table[mb_xy])
2688 ff_clean_intra_table_entries(s);
2692 s->last_dc[2] = 128 << s->intra_dc_precision;
2695 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2696 s->mbintra_table[mb_xy]=1;
2698 if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
2699 uint8_t *dest_y, *dest_cb, *dest_cr;
2700 int dct_linesize, dct_offset;
2701 op_pixels_func (*op_pix)[4];
2702 qpel_mc_func (*op_qpix)[16];
2703 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
2704 const int uvlinesize = s->current_picture.f.linesize[1];
2705 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2706 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2708 /* avoid copy if macroblock skipped in last frame too */
2709 /* skip only during decoding as we might trash the buffers during encoding a bit */
2711 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2713 if (s->mb_skipped) {
2715 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2717 } else if(!s->current_picture.reference) {
2720 *mbskip_ptr = 0; /* not skipped */
2724 dct_linesize = linesize << s->interlaced_dct;
2725 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2729 dest_cb= s->dest[1];
2730 dest_cr= s->dest[2];
2732 dest_y = s->b_scratchpad;
2733 dest_cb= s->b_scratchpad+16*linesize;
2734 dest_cr= s->b_scratchpad+32*linesize;
2738 /* motion handling */
2739 /* decoding or more than one mb_type (MC was already done otherwise) */
2742 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2743 if (s->mv_dir & MV_DIR_FORWARD) {
2744 ff_thread_await_progress(&s->last_picture_ptr->tf,
2745 ff_MPV_lowest_referenced_row(s, 0),
2748 if (s->mv_dir & MV_DIR_BACKWARD) {
2749 ff_thread_await_progress(&s->next_picture_ptr->tf,
2750 ff_MPV_lowest_referenced_row(s, 1),
2756 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2758 if (s->mv_dir & MV_DIR_FORWARD) {
2759 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix);
2760 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2762 if (s->mv_dir & MV_DIR_BACKWARD) {
2763 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix);
2766 op_qpix= s->me.qpel_put;
2767 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2768 op_pix = s->hdsp.put_pixels_tab;
2770 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2772 if (s->mv_dir & MV_DIR_FORWARD) {
2773 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
2774 op_pix = s->hdsp.avg_pixels_tab;
2775 op_qpix= s->me.qpel_avg;
2777 if (s->mv_dir & MV_DIR_BACKWARD) {
2778 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
2783 /* skip dequant / idct if we are really late ;) */
2784 if(s->avctx->skip_idct){
2785 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2786 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2787 || s->avctx->skip_idct >= AVDISCARD_ALL)
2791 /* add dct residue */
2792 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2793 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2794 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2795 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2796 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2797 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2799 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2800 if (s->chroma_y_shift){
2801 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2802 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2806 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2807 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2808 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2809 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2812 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2813 add_dct(s, block[0], 0, dest_y , dct_linesize);
2814 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2815 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2816 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2818 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2819 if(s->chroma_y_shift){//Chroma420
2820 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2821 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2824 dct_linesize = uvlinesize << s->interlaced_dct;
2825 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2827 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2828 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2829 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2830 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2831 if(!s->chroma_x_shift){//Chroma444
2832 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2833 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2834 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2835 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2840 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2841 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2844 /* dct only in intra block */
2845 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2846 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2847 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2848 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2849 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2851 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2852 if(s->chroma_y_shift){
2853 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2854 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2858 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2859 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2860 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2861 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2865 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2866 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2867 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2868 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2870 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2871 if(s->chroma_y_shift){
2872 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
2873 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
2876 dct_linesize = uvlinesize << s->interlaced_dct;
2877 dct_offset = s->interlaced_dct? uvlinesize : uvlinesize*block_size;
2879 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
2880 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
2881 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2882 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2883 if(!s->chroma_x_shift){//Chroma444
2884 s->dsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2885 s->dsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2886 s->dsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2887 s->dsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2895 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2896 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2897 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2902 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
2904 if(s->out_format == FMT_MPEG1) {
2905 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
2906 else MPV_decode_mb_internal(s, block, 0, 1);
2909 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0);
2910 else MPV_decode_mb_internal(s, block, 0, 0);
2914 * @param h is the normal height, this will be reduced automatically if needed for the last row
2916 void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
2917 Picture *last, int y, int h, int picture_structure,
2918 int first_field, int draw_edges, int low_delay,
2919 int v_edge_pos, int h_edge_pos)
2921 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2922 int hshift = desc->log2_chroma_w;
2923 int vshift = desc->log2_chroma_h;
2924 const int field_pic = picture_structure != PICT_FRAME;
2930 if (!avctx->hwaccel &&
2931 !(avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) &&
2934 !(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
2935 int *linesize = cur->f.linesize;
2936 int sides = 0, edge_h;
2937 if (y==0) sides |= EDGE_TOP;
2938 if (y + h >= v_edge_pos)
2939 sides |= EDGE_BOTTOM;
2941 edge_h= FFMIN(h, v_edge_pos - y);
2943 dsp->draw_edges(cur->f.data[0] + y * linesize[0],
2944 linesize[0], h_edge_pos, edge_h,
2945 EDGE_WIDTH, EDGE_WIDTH, sides);
2946 dsp->draw_edges(cur->f.data[1] + (y >> vshift) * linesize[1],
2947 linesize[1], h_edge_pos >> hshift, edge_h >> vshift,
2948 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2949 dsp->draw_edges(cur->f.data[2] + (y >> vshift) * linesize[2],
2950 linesize[2], h_edge_pos >> hshift, edge_h >> vshift,
2951 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2954 h = FFMIN(h, avctx->height - y);
2956 if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
2958 if (avctx->draw_horiz_band) {
2960 int offset[AV_NUM_DATA_POINTERS];
2963 if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay ||
2964 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
2971 if (cur->f.pict_type == AV_PICTURE_TYPE_B &&
2972 picture_structure == PICT_FRAME &&
2973 avctx->codec_id != AV_CODEC_ID_SVQ3) {
2974 for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
2977 offset[0]= y * src->linesize[0];
2979 offset[2]= (y >> vshift) * src->linesize[1];
2980 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
2986 avctx->draw_horiz_band(avctx, src, offset,
2987 y, picture_structure, h);
2991 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2993 int draw_edges = s->unrestricted_mv && !s->intra_only;
2994 ff_draw_horiz_band(s->avctx, &s->dsp, s->current_picture_ptr,
2995 s->last_picture_ptr, y, h, s->picture_structure,
2996 s->first_field, draw_edges, s->low_delay,
2997 s->v_edge_pos, s->h_edge_pos);
3000 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3001 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
3002 const int uvlinesize = s->current_picture.f.linesize[1];
3003 const int mb_size= 4 - s->avctx->lowres;
3005 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3006 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3007 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3008 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3009 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3010 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;
3011 //block_index is not used by mpeg2, so it is not affected by chroma_format
3013 s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size);
3014 s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3015 s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3017 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3019 if(s->picture_structure==PICT_FRAME){
3020 s->dest[0] += s->mb_y * linesize << mb_size;
3021 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3022 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3024 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3025 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3026 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3027 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3033 * Permute an 8x8 block.
3034 * @param block the block which will be permuted according to the given permutation vector
3035 * @param permutation the permutation vector
3036 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3037 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3038 * (inverse) permutated to scantable order!
3040 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3046 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3048 for(i=0; i<=last; i++){
3049 const int j= scantable[i];
3054 for(i=0; i<=last; i++){
3055 const int j= scantable[i];
3056 const int perm_j= permutation[j];
3057 block[perm_j]= temp[j];
3061 void ff_mpeg_flush(AVCodecContext *avctx){
3063 MpegEncContext *s = avctx->priv_data;
3065 if(s==NULL || s->picture==NULL)
3068 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3069 ff_mpeg_unref_picture(s, &s->picture[i]);
3070 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3072 ff_mpeg_unref_picture(s, &s->current_picture);
3073 ff_mpeg_unref_picture(s, &s->last_picture);
3074 ff_mpeg_unref_picture(s, &s->next_picture);
3076 s->mb_x= s->mb_y= 0;
3079 s->parse_context.state= -1;
3080 s->parse_context.frame_start_found= 0;
3081 s->parse_context.overread= 0;
3082 s->parse_context.overread_index= 0;
3083 s->parse_context.index= 0;
3084 s->parse_context.last_index= 0;
3085 s->bitstream_buffer_size=0;
3089 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
3090 int16_t *block, int n, int qscale)
3092 int i, level, nCoeffs;
3093 const uint16_t *quant_matrix;
3095 nCoeffs= s->block_last_index[n];
3097 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3098 /* XXX: only mpeg1 */
3099 quant_matrix = s->intra_matrix;
3100 for(i=1;i<=nCoeffs;i++) {
3101 int j= s->intra_scantable.permutated[i];
3106 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3107 level = (level - 1) | 1;
3110 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3111 level = (level - 1) | 1;
3118 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
3119 int16_t *block, int n, int qscale)
3121 int i, level, nCoeffs;
3122 const uint16_t *quant_matrix;
3124 nCoeffs= s->block_last_index[n];
3126 quant_matrix = s->inter_matrix;
3127 for(i=0; i<=nCoeffs; i++) {
3128 int j= s->intra_scantable.permutated[i];
3133 level = (((level << 1) + 1) * qscale *
3134 ((int) (quant_matrix[j]))) >> 4;
3135 level = (level - 1) | 1;
3138 level = (((level << 1) + 1) * qscale *
3139 ((int) (quant_matrix[j]))) >> 4;
3140 level = (level - 1) | 1;
3147 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
3148 int16_t *block, int n, int qscale)
3150 int i, level, nCoeffs;
3151 const uint16_t *quant_matrix;
3153 if(s->alternate_scan) nCoeffs= 63;
3154 else nCoeffs= s->block_last_index[n];
3156 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3157 quant_matrix = s->intra_matrix;
3158 for(i=1;i<=nCoeffs;i++) {
3159 int j= s->intra_scantable.permutated[i];
3164 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3167 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3174 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
3175 int16_t *block, int n, int qscale)
3177 int i, level, nCoeffs;
3178 const uint16_t *quant_matrix;
3181 if(s->alternate_scan) nCoeffs= 63;
3182 else nCoeffs= s->block_last_index[n];
3184 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3186 quant_matrix = s->intra_matrix;
3187 for(i=1;i<=nCoeffs;i++) {
3188 int j= s->intra_scantable.permutated[i];
3193 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3196 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3205 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
3206 int16_t *block, int n, int qscale)
3208 int i, level, nCoeffs;
3209 const uint16_t *quant_matrix;
3212 if(s->alternate_scan) nCoeffs= 63;
3213 else nCoeffs= s->block_last_index[n];
3215 quant_matrix = s->inter_matrix;
3216 for(i=0; i<=nCoeffs; i++) {
3217 int j= s->intra_scantable.permutated[i];
3222 level = (((level << 1) + 1) * qscale *
3223 ((int) (quant_matrix[j]))) >> 4;
3226 level = (((level << 1) + 1) * qscale *
3227 ((int) (quant_matrix[j]))) >> 4;
3236 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
3237 int16_t *block, int n, int qscale)
3239 int i, level, qmul, qadd;
3242 av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
3247 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3248 qadd = (qscale - 1) | 1;
3255 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
3257 for(i=1; i<=nCoeffs; i++) {
3261 level = level * qmul - qadd;
3263 level = level * qmul + qadd;
3270 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
3271 int16_t *block, int n, int qscale)
3273 int i, level, qmul, qadd;
3276 av_assert2(s->block_last_index[n]>=0);
3278 qadd = (qscale - 1) | 1;
3281 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
3283 for(i=0; i<=nCoeffs; i++) {
3287 level = level * qmul - qadd;
3289 level = level * qmul + qadd;
3297 * set qscale and update qscale dependent variables.
3299 void ff_set_qscale(MpegEncContext * s, int qscale)
3303 else if (qscale > 31)
3307 s->chroma_qscale= s->chroma_qscale_table[qscale];
3309 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3310 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3313 void ff_MPV_report_decode_progress(MpegEncContext *s)
3315 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3316 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
3319 #if CONFIG_ERROR_RESILIENCE
3320 void ff_mpeg_er_frame_start(MpegEncContext *s)
3322 ERContext *er = &s->er;
3324 er->cur_pic = s->current_picture_ptr;
3325 er->last_pic = s->last_picture_ptr;
3326 er->next_pic = s->next_picture_ptr;
3328 er->pp_time = s->pp_time;
3329 er->pb_time = s->pb_time;
3330 er->quarter_sample = s->quarter_sample;
3331 er->partitioned_frame = s->partitioned_frame;
3333 ff_er_frame_start(er);
3335 #endif /* CONFIG_ERROR_RESILIENCE */