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 ff_MPV_decode_mb(s, s->block);
153 /* init common dct for both encoder and decoder */
154 av_cold int ff_dct_common_init(MpegEncContext *s)
156 ff_dsputil_init(&s->dsp, s->avctx);
157 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
158 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
159 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
161 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
162 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
163 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
164 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
165 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
166 if (s->flags & CODEC_FLAG_BITEXACT)
167 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
168 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
171 ff_MPV_common_init_x86(s);
173 ff_MPV_common_init_axp(s);
175 ff_MPV_common_init_arm(s);
177 ff_MPV_common_init_bfin(s);
179 ff_MPV_common_init_ppc(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 assert(pic->f.data[0]);
391 assert(!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 if (init_duplicate_context(s) < 0)
1229 s->end_mb_y = s->mb_height;
1231 s->slice_context_count = nb_slices;
1236 ff_MPV_common_end(s);
1240 /* init common structure for both encoder and decoder */
1241 void ff_MPV_common_end(MpegEncContext *s)
1245 if (s->slice_context_count > 1) {
1246 for (i = 0; i < s->slice_context_count; i++) {
1247 free_duplicate_context(s->thread_context[i]);
1249 for (i = 1; i < s->slice_context_count; i++) {
1250 av_freep(&s->thread_context[i]);
1252 s->slice_context_count = 1;
1253 } else free_duplicate_context(s);
1255 av_freep(&s->parse_context.buffer);
1256 s->parse_context.buffer_size = 0;
1258 av_freep(&s->bitstream_buffer);
1259 s->allocated_bitstream_buffer_size = 0;
1261 av_freep(&s->avctx->stats_out);
1262 av_freep(&s->ac_stats);
1264 if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix);
1265 if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16);
1266 s->q_chroma_intra_matrix= NULL;
1267 s->q_chroma_intra_matrix16= NULL;
1268 av_freep(&s->q_intra_matrix);
1269 av_freep(&s->q_inter_matrix);
1270 av_freep(&s->q_intra_matrix16);
1271 av_freep(&s->q_inter_matrix16);
1272 av_freep(&s->input_picture);
1273 av_freep(&s->reordered_input_picture);
1274 av_freep(&s->dct_offset);
1277 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1278 free_picture_tables(&s->picture[i]);
1279 ff_mpeg_unref_picture(s, &s->picture[i]);
1282 av_freep(&s->picture);
1283 free_picture_tables(&s->last_picture);
1284 ff_mpeg_unref_picture(s, &s->last_picture);
1285 free_picture_tables(&s->current_picture);
1286 ff_mpeg_unref_picture(s, &s->current_picture);
1287 free_picture_tables(&s->next_picture);
1288 ff_mpeg_unref_picture(s, &s->next_picture);
1289 free_picture_tables(&s->new_picture);
1290 ff_mpeg_unref_picture(s, &s->new_picture);
1292 free_context_frame(s);
1294 s->context_initialized = 0;
1295 s->last_picture_ptr =
1296 s->next_picture_ptr =
1297 s->current_picture_ptr = NULL;
1298 s->linesize = s->uvlinesize = 0;
1301 av_cold void ff_init_rl(RLTable *rl,
1302 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1304 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1305 uint8_t index_run[MAX_RUN + 1];
1306 int last, run, level, start, end, i;
1308 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1309 if (static_store && rl->max_level[0])
1312 /* compute max_level[], max_run[] and index_run[] */
1313 for (last = 0; last < 2; last++) {
1322 memset(max_level, 0, MAX_RUN + 1);
1323 memset(max_run, 0, MAX_LEVEL + 1);
1324 memset(index_run, rl->n, MAX_RUN + 1);
1325 for (i = start; i < end; i++) {
1326 run = rl->table_run[i];
1327 level = rl->table_level[i];
1328 if (index_run[run] == rl->n)
1330 if (level > max_level[run])
1331 max_level[run] = level;
1332 if (run > max_run[level])
1333 max_run[level] = run;
1336 rl->max_level[last] = static_store[last];
1338 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1339 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1341 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1343 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1344 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1346 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1348 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1349 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1353 av_cold void ff_init_vlc_rl(RLTable *rl)
1357 for (q = 0; q < 32; q++) {
1359 int qadd = (q - 1) | 1;
1365 for (i = 0; i < rl->vlc.table_size; i++) {
1366 int code = rl->vlc.table[i][0];
1367 int len = rl->vlc.table[i][1];
1370 if (len == 0) { // illegal code
1373 } else if (len < 0) { // more bits needed
1377 if (code == rl->n) { // esc
1381 run = rl->table_run[code] + 1;
1382 level = rl->table_level[code] * qmul + qadd;
1383 if (code >= rl->last) run += 192;
1386 rl->rl_vlc[q][i].len = len;
1387 rl->rl_vlc[q][i].level = level;
1388 rl->rl_vlc[q][i].run = run;
1393 void ff_release_unused_pictures(MpegEncContext*s, int remove_current)
1397 /* release non reference frames */
1398 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1399 if (!s->picture[i].reference &&
1400 (remove_current || &s->picture[i] != s->current_picture_ptr)) {
1401 ff_mpeg_unref_picture(s, &s->picture[i]);
1406 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1408 if (pic == s->last_picture_ptr)
1410 if (pic->f.data[0] == NULL)
1412 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1417 static int find_unused_picture(MpegEncContext *s, int shared)
1422 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1423 if (s->picture[i].f.data[0] == NULL && &s->picture[i] != s->last_picture_ptr)
1427 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1428 if (pic_is_unused(s, &s->picture[i]))
1433 av_log(s->avctx, AV_LOG_FATAL,
1434 "Internal error, picture buffer overflow\n");
1435 /* We could return -1, but the codec would crash trying to draw into a
1436 * non-existing frame anyway. This is safer than waiting for a random crash.
1437 * Also the return of this is never useful, an encoder must only allocate
1438 * as much as allowed in the specification. This has no relationship to how
1439 * much libavcodec could allocate (and MAX_PICTURE_COUNT is always large
1440 * enough for such valid streams).
1441 * Plus, a decoder has to check stream validity and remove frames if too
1442 * many reference frames are around. Waiting for "OOM" is not correct at
1443 * all. Similarly, missing reference frames have to be replaced by
1444 * interpolated/MC frames, anything else is a bug in the codec ...
1450 int ff_find_unused_picture(MpegEncContext *s, int shared)
1452 int ret = find_unused_picture(s, shared);
1454 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1455 if (s->picture[ret].needs_realloc) {
1456 s->picture[ret].needs_realloc = 0;
1457 free_picture_tables(&s->picture[ret]);
1458 ff_mpeg_unref_picture(s, &s->picture[ret]);
1459 avcodec_get_frame_defaults(&s->picture[ret].f);
1465 static void update_noise_reduction(MpegEncContext *s)
1469 for (intra = 0; intra < 2; intra++) {
1470 if (s->dct_count[intra] > (1 << 16)) {
1471 for (i = 0; i < 64; i++) {
1472 s->dct_error_sum[intra][i] >>= 1;
1474 s->dct_count[intra] >>= 1;
1477 for (i = 0; i < 64; i++) {
1478 s->dct_offset[intra][i] = (s->avctx->noise_reduction *
1479 s->dct_count[intra] +
1480 s->dct_error_sum[intra][i] / 2) /
1481 (s->dct_error_sum[intra][i] + 1);
1487 * generic function for encode/decode called after coding/decoding
1488 * the header and before a frame is coded/decoded.
1490 int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1496 if (!ff_thread_can_start_frame(avctx)) {
1497 av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1501 /* mark & release old frames */
1502 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1503 s->last_picture_ptr != s->next_picture_ptr &&
1504 s->last_picture_ptr->f.data[0]) {
1505 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1508 /* release forgotten pictures */
1509 /* if (mpeg124/h263) */
1511 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1512 if (&s->picture[i] != s->last_picture_ptr &&
1513 &s->picture[i] != s->next_picture_ptr &&
1514 s->picture[i].reference && !s->picture[i].needs_realloc) {
1515 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1516 av_log(avctx, AV_LOG_ERROR,
1517 "releasing zombie picture\n");
1518 ff_mpeg_unref_picture(s, &s->picture[i]);
1523 ff_mpeg_unref_picture(s, &s->current_picture);
1526 ff_release_unused_pictures(s, 1);
1528 if (s->current_picture_ptr &&
1529 s->current_picture_ptr->f.data[0] == NULL) {
1530 // we already have a unused image
1531 // (maybe it was set before reading the header)
1532 pic = s->current_picture_ptr;
1534 i = ff_find_unused_picture(s, 0);
1536 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1539 pic = &s->picture[i];
1543 if (!s->droppable) {
1544 if (s->pict_type != AV_PICTURE_TYPE_B)
1548 pic->f.coded_picture_number = s->coded_picture_number++;
1550 if (ff_alloc_picture(s, pic, 0) < 0)
1553 s->current_picture_ptr = pic;
1554 // FIXME use only the vars from current_pic
1555 s->current_picture_ptr->f.top_field_first = s->top_field_first;
1556 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1557 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1558 if (s->picture_structure != PICT_FRAME)
1559 s->current_picture_ptr->f.top_field_first =
1560 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1562 s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame &&
1563 !s->progressive_sequence;
1564 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1567 s->current_picture_ptr->f.pict_type = s->pict_type;
1568 // if (s->flags && CODEC_FLAG_QSCALE)
1569 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1570 s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1572 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1573 s->current_picture_ptr)) < 0)
1576 if (s->pict_type != AV_PICTURE_TYPE_B) {
1577 s->last_picture_ptr = s->next_picture_ptr;
1579 s->next_picture_ptr = s->current_picture_ptr;
1581 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1582 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1583 s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL,
1584 s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL,
1585 s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL,
1586 s->pict_type, s->droppable);
1588 if ((s->last_picture_ptr == NULL ||
1589 s->last_picture_ptr->f.data[0] == NULL) &&
1590 (s->pict_type != AV_PICTURE_TYPE_I ||
1591 s->picture_structure != PICT_FRAME)) {
1592 int h_chroma_shift, v_chroma_shift;
1593 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1594 &h_chroma_shift, &v_chroma_shift);
1595 if (s->pict_type != AV_PICTURE_TYPE_I)
1596 av_log(avctx, AV_LOG_ERROR,
1597 "warning: first frame is no keyframe\n");
1598 else if (s->picture_structure != PICT_FRAME)
1599 av_log(avctx, AV_LOG_INFO,
1600 "allocate dummy last picture for field based first keyframe\n");
1602 /* Allocate a dummy frame */
1603 i = ff_find_unused_picture(s, 0);
1605 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1608 s->last_picture_ptr = &s->picture[i];
1609 s->last_picture_ptr->f.key_frame = 0;
1610 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1611 s->last_picture_ptr = NULL;
1615 memset(s->last_picture_ptr->f.data[0], 0x80,
1616 avctx->height * s->last_picture_ptr->f.linesize[0]);
1617 memset(s->last_picture_ptr->f.data[1], 0x80,
1618 (avctx->height >> v_chroma_shift) *
1619 s->last_picture_ptr->f.linesize[1]);
1620 memset(s->last_picture_ptr->f.data[2], 0x80,
1621 (avctx->height >> v_chroma_shift) *
1622 s->last_picture_ptr->f.linesize[2]);
1624 if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1625 for(i=0; i<avctx->height; i++)
1626 memset(s->last_picture_ptr->f.data[0] + s->last_picture_ptr->f.linesize[0]*i, 16, avctx->width);
1629 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1630 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1632 if ((s->next_picture_ptr == NULL ||
1633 s->next_picture_ptr->f.data[0] == NULL) &&
1634 s->pict_type == AV_PICTURE_TYPE_B) {
1635 /* Allocate a dummy frame */
1636 i = ff_find_unused_picture(s, 0);
1638 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1641 s->next_picture_ptr = &s->picture[i];
1642 s->next_picture_ptr->f.key_frame = 0;
1643 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1644 s->next_picture_ptr = NULL;
1647 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1648 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1651 #if 0 // BUFREF-FIXME
1652 memset(s->last_picture.f.data, 0, sizeof(s->last_picture.f.data));
1653 memset(s->next_picture.f.data, 0, sizeof(s->next_picture.f.data));
1655 if (s->last_picture_ptr) {
1656 ff_mpeg_unref_picture(s, &s->last_picture);
1657 if (s->last_picture_ptr->f.data[0] &&
1658 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1659 s->last_picture_ptr)) < 0)
1662 if (s->next_picture_ptr) {
1663 ff_mpeg_unref_picture(s, &s->next_picture);
1664 if (s->next_picture_ptr->f.data[0] &&
1665 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1666 s->next_picture_ptr)) < 0)
1670 assert(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1671 s->last_picture_ptr->f.data[0]));
1673 if (s->picture_structure!= PICT_FRAME) {
1675 for (i = 0; i < 4; i++) {
1676 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1677 s->current_picture.f.data[i] +=
1678 s->current_picture.f.linesize[i];
1680 s->current_picture.f.linesize[i] *= 2;
1681 s->last_picture.f.linesize[i] *= 2;
1682 s->next_picture.f.linesize[i] *= 2;
1686 s->err_recognition = avctx->err_recognition;
1688 /* set dequantizer, we can't do it during init as
1689 * it might change for mpeg4 and we can't do it in the header
1690 * decode as init is not called for mpeg4 there yet */
1691 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1692 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1693 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1694 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1695 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1696 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1698 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1699 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1702 if (s->dct_error_sum) {
1703 av_assert2(s->avctx->noise_reduction && s->encoding);
1704 update_noise_reduction(s);
1707 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
1708 return ff_xvmc_field_start(s, avctx);
1713 /* generic function for encode/decode called after a
1714 * frame has been coded/decoded. */
1715 void ff_MPV_frame_end(MpegEncContext *s)
1718 /* redraw edges for the frame if decoding didn't complete */
1719 // just to make sure that all data is rendered.
1720 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) {
1721 ff_xvmc_field_end(s);
1722 } else if ((s->er.error_count || s->encoding || !(s->avctx->codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND)) &&
1723 !s->avctx->hwaccel &&
1724 !(s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) &&
1725 s->unrestricted_mv &&
1726 s->current_picture.reference &&
1728 !(s->flags & CODEC_FLAG_EMU_EDGE) &&
1731 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1732 int hshift = desc->log2_chroma_w;
1733 int vshift = desc->log2_chroma_h;
1734 s->dsp.draw_edges(s->current_picture.f.data[0], s->current_picture.f.linesize[0],
1735 s->h_edge_pos, s->v_edge_pos,
1736 EDGE_WIDTH, EDGE_WIDTH,
1737 EDGE_TOP | EDGE_BOTTOM);
1738 s->dsp.draw_edges(s->current_picture.f.data[1], s->current_picture.f.linesize[1],
1739 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1740 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1741 EDGE_TOP | EDGE_BOTTOM);
1742 s->dsp.draw_edges(s->current_picture.f.data[2], s->current_picture.f.linesize[2],
1743 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1744 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1745 EDGE_TOP | EDGE_BOTTOM);
1750 s->last_pict_type = s->pict_type;
1751 s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f.quality;
1752 if (s->pict_type!= AV_PICTURE_TYPE_B) {
1753 s->last_non_b_pict_type = s->pict_type;
1756 /* copy back current_picture variables */
1757 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1758 if (s->picture[i].f.data[0] == s->current_picture.f.data[0]) {
1759 s->picture[i] = s->current_picture;
1763 assert(i < MAX_PICTURE_COUNT);
1767 /* release non-reference frames */
1768 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1769 if (!s->picture[i].reference)
1770 ff_mpeg_unref_picture(s, &s->picture[i]);
1773 // clear copies, to avoid confusion
1775 memset(&s->last_picture, 0, sizeof(Picture));
1776 memset(&s->next_picture, 0, sizeof(Picture));
1777 memset(&s->current_picture, 0, sizeof(Picture));
1779 s->avctx->coded_frame = &s->current_picture_ptr->f;
1781 if (s->current_picture.reference)
1782 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1786 * Draw a line from (ex, ey) -> (sx, sy).
1787 * @param w width of the image
1788 * @param h height of the image
1789 * @param stride stride/linesize of the image
1790 * @param color color of the arrow
1792 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey,
1793 int w, int h, int stride, int color)
1797 sx = av_clip(sx, 0, w - 1);
1798 sy = av_clip(sy, 0, h - 1);
1799 ex = av_clip(ex, 0, w - 1);
1800 ey = av_clip(ey, 0, h - 1);
1802 buf[sy * stride + sx] += color;
1804 if (FFABS(ex - sx) > FFABS(ey - sy)) {
1806 FFSWAP(int, sx, ex);
1807 FFSWAP(int, sy, ey);
1809 buf += sx + sy * stride;
1811 f = ((ey - sy) << 16) / ex;
1812 for (x = 0; x <= ex; x++) {
1814 fr = (x * f) & 0xFFFF;
1815 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1816 if(fr) buf[(y + 1) * stride + x] += (color * fr ) >> 16;
1820 FFSWAP(int, sx, ex);
1821 FFSWAP(int, sy, ey);
1823 buf += sx + sy * stride;
1826 f = ((ex - sx) << 16) / ey;
1829 for(y= 0; y <= ey; y++){
1831 fr = (y*f) & 0xFFFF;
1832 buf[y * stride + x] += (color * (0x10000 - fr)) >> 16;
1833 if(fr) buf[y * stride + x + 1] += (color * fr ) >> 16;
1839 * Draw an arrow from (ex, ey) -> (sx, sy).
1840 * @param w width of the image
1841 * @param h height of the image
1842 * @param stride stride/linesize of the image
1843 * @param color color of the arrow
1845 static void draw_arrow(uint8_t *buf, int sx, int sy, int ex,
1846 int ey, int w, int h, int stride, int color)
1850 sx = av_clip(sx, -100, w + 100);
1851 sy = av_clip(sy, -100, h + 100);
1852 ex = av_clip(ex, -100, w + 100);
1853 ey = av_clip(ey, -100, h + 100);
1858 if (dx * dx + dy * dy > 3 * 3) {
1861 int length = ff_sqrt((rx * rx + ry * ry) << 8);
1863 // FIXME subpixel accuracy
1864 rx = ROUNDED_DIV(rx * 3 << 4, length);
1865 ry = ROUNDED_DIV(ry * 3 << 4, length);
1867 draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
1868 draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
1870 draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
1874 * Print debugging info for the given picture.
1876 void ff_print_debug_info2(AVCodecContext *avctx, Picture *p, AVFrame *pict, uint8_t *mbskip_table,
1878 int mb_width, int mb_height, int mb_stride, int quarter_sample)
1880 if (avctx->hwaccel || !p || !p->mb_type
1881 || (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU))
1885 if (avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1888 av_log(avctx, AV_LOG_DEBUG, "New frame, type: %c\n",
1889 av_get_picture_type_char(pict->pict_type));
1890 for (y = 0; y < mb_height; y++) {
1891 for (x = 0; x < mb_width; x++) {
1892 if (avctx->debug & FF_DEBUG_SKIP) {
1893 int count = mbskip_table[x + y * mb_stride];
1896 av_log(avctx, AV_LOG_DEBUG, "%1d", count);
1898 if (avctx->debug & FF_DEBUG_QP) {
1899 av_log(avctx, AV_LOG_DEBUG, "%2d",
1900 p->qscale_table[x + y * mb_stride]);
1902 if (avctx->debug & FF_DEBUG_MB_TYPE) {
1903 int mb_type = p->mb_type[x + y * mb_stride];
1904 // Type & MV direction
1905 if (IS_PCM(mb_type))
1906 av_log(avctx, AV_LOG_DEBUG, "P");
1907 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1908 av_log(avctx, AV_LOG_DEBUG, "A");
1909 else if (IS_INTRA4x4(mb_type))
1910 av_log(avctx, AV_LOG_DEBUG, "i");
1911 else if (IS_INTRA16x16(mb_type))
1912 av_log(avctx, AV_LOG_DEBUG, "I");
1913 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1914 av_log(avctx, AV_LOG_DEBUG, "d");
1915 else if (IS_DIRECT(mb_type))
1916 av_log(avctx, AV_LOG_DEBUG, "D");
1917 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1918 av_log(avctx, AV_LOG_DEBUG, "g");
1919 else if (IS_GMC(mb_type))
1920 av_log(avctx, AV_LOG_DEBUG, "G");
1921 else if (IS_SKIP(mb_type))
1922 av_log(avctx, AV_LOG_DEBUG, "S");
1923 else if (!USES_LIST(mb_type, 1))
1924 av_log(avctx, AV_LOG_DEBUG, ">");
1925 else if (!USES_LIST(mb_type, 0))
1926 av_log(avctx, AV_LOG_DEBUG, "<");
1928 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1929 av_log(avctx, AV_LOG_DEBUG, "X");
1933 if (IS_8X8(mb_type))
1934 av_log(avctx, AV_LOG_DEBUG, "+");
1935 else if (IS_16X8(mb_type))
1936 av_log(avctx, AV_LOG_DEBUG, "-");
1937 else if (IS_8X16(mb_type))
1938 av_log(avctx, AV_LOG_DEBUG, "|");
1939 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1940 av_log(avctx, AV_LOG_DEBUG, " ");
1942 av_log(avctx, AV_LOG_DEBUG, "?");
1945 if (IS_INTERLACED(mb_type))
1946 av_log(avctx, AV_LOG_DEBUG, "=");
1948 av_log(avctx, AV_LOG_DEBUG, " ");
1951 av_log(avctx, AV_LOG_DEBUG, "\n");
1955 if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
1956 (avctx->debug_mv)) {
1957 const int shift = 1 + quarter_sample;
1961 int h_chroma_shift, v_chroma_shift, block_height;
1962 const int width = avctx->width;
1963 const int height = avctx->height;
1964 const int mv_sample_log2 = avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_SVQ3 ? 2 : 1;
1965 const int mv_stride = (mb_width << mv_sample_log2) +
1966 (avctx->codec->id == AV_CODEC_ID_H264 ? 0 : 1);
1968 *low_delay = 0; // needed to see the vectors without trashing the buffers
1970 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
1972 av_frame_make_writable(pict);
1974 pict->opaque = NULL;
1975 ptr = pict->data[0];
1976 block_height = 16 >> v_chroma_shift;
1978 for (mb_y = 0; mb_y < mb_height; mb_y++) {
1980 for (mb_x = 0; mb_x < mb_width; mb_x++) {
1981 const int mb_index = mb_x + mb_y * mb_stride;
1982 if ((avctx->debug_mv) && p->motion_val[0]) {
1984 for (type = 0; type < 3; type++) {
1988 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_P_FOR)) ||
1989 (pict->pict_type!= AV_PICTURE_TYPE_P))
1994 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_FOR)) ||
1995 (pict->pict_type!= AV_PICTURE_TYPE_B))
2000 if ((!(avctx->debug_mv & FF_DEBUG_VIS_MV_B_BACK)) ||
2001 (pict->pict_type!= AV_PICTURE_TYPE_B))
2006 if (!USES_LIST(p->mb_type[mb_index], direction))
2009 if (IS_8X8(p->mb_type[mb_index])) {
2011 for (i = 0; i < 4; i++) {
2012 int sx = mb_x * 16 + 4 + 8 * (i & 1);
2013 int sy = mb_y * 16 + 4 + 8 * (i >> 1);
2014 int xy = (mb_x * 2 + (i & 1) +
2015 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2016 int mx = (p->motion_val[direction][xy][0] >> shift) + sx;
2017 int my = (p->motion_val[direction][xy][1] >> shift) + sy;
2018 draw_arrow(ptr, sx, sy, mx, my, width,
2019 height, pict->linesize[0], 100);
2021 } else if (IS_16X8(p->mb_type[mb_index])) {
2023 for (i = 0; i < 2; i++) {
2024 int sx = mb_x * 16 + 8;
2025 int sy = mb_y * 16 + 4 + 8 * i;
2026 int xy = (mb_x * 2 + (mb_y * 2 + i) * mv_stride) << (mv_sample_log2 - 1);
2027 int mx = (p->motion_val[direction][xy][0] >> shift);
2028 int my = (p->motion_val[direction][xy][1] >> shift);
2030 if (IS_INTERLACED(p->mb_type[mb_index]))
2033 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2034 height, pict->linesize[0], 100);
2036 } else if (IS_8X16(p->mb_type[mb_index])) {
2038 for (i = 0; i < 2; i++) {
2039 int sx = mb_x * 16 + 4 + 8 * i;
2040 int sy = mb_y * 16 + 8;
2041 int xy = (mb_x * 2 + i + mb_y * 2 * mv_stride) << (mv_sample_log2 - 1);
2042 int mx = p->motion_val[direction][xy][0] >> shift;
2043 int my = p->motion_val[direction][xy][1] >> shift;
2045 if (IS_INTERLACED(p->mb_type[mb_index]))
2048 draw_arrow(ptr, sx, sy, mx + sx, my + sy, width,
2049 height, pict->linesize[0], 100);
2052 int sx= mb_x * 16 + 8;
2053 int sy= mb_y * 16 + 8;
2054 int xy= (mb_x + mb_y * mv_stride) << mv_sample_log2;
2055 int mx= (p->motion_val[direction][xy][0]>>shift) + sx;
2056 int my= (p->motion_val[direction][xy][1]>>shift) + sy;
2057 draw_arrow(ptr, sx, sy, mx, my, width, height, pict->linesize[0], 100);
2061 if ((avctx->debug & FF_DEBUG_VIS_QP)) {
2062 uint64_t c = (p->qscale_table[mb_index] * 128 / 31) *
2063 0x0101010101010101ULL;
2065 for (y = 0; y < block_height; y++) {
2066 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2067 (block_height * mb_y + y) *
2068 pict->linesize[1]) = c;
2069 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2070 (block_height * mb_y + y) *
2071 pict->linesize[2]) = c;
2074 if ((avctx->debug & FF_DEBUG_VIS_MB_TYPE) &&
2076 int mb_type = p->mb_type[mb_index];
2079 #define COLOR(theta, r) \
2080 u = (int)(128 + r * cos(theta * 3.141592 / 180)); \
2081 v = (int)(128 + r * sin(theta * 3.141592 / 180));
2085 if (IS_PCM(mb_type)) {
2087 } else if ((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) ||
2088 IS_INTRA16x16(mb_type)) {
2090 } else if (IS_INTRA4x4(mb_type)) {
2092 } else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type)) {
2094 } else if (IS_DIRECT(mb_type)) {
2096 } else if (IS_GMC(mb_type) && IS_SKIP(mb_type)) {
2098 } else if (IS_GMC(mb_type)) {
2100 } else if (IS_SKIP(mb_type)) {
2102 } else if (!USES_LIST(mb_type, 1)) {
2104 } else if (!USES_LIST(mb_type, 0)) {
2107 av_assert2(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
2111 u *= 0x0101010101010101ULL;
2112 v *= 0x0101010101010101ULL;
2113 for (y = 0; y < block_height; y++) {
2114 *(uint64_t *)(pict->data[1] + 8 * mb_x +
2115 (block_height * mb_y + y) * pict->linesize[1]) = u;
2116 *(uint64_t *)(pict->data[2] + 8 * mb_x +
2117 (block_height * mb_y + y) * pict->linesize[2]) = v;
2121 if (IS_8X8(mb_type) || IS_16X8(mb_type)) {
2122 *(uint64_t *)(pict->data[0] + 16 * mb_x + 0 +
2123 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2124 *(uint64_t *)(pict->data[0] + 16 * mb_x + 8 +
2125 (16 * mb_y + 8) * pict->linesize[0]) ^= 0x8080808080808080ULL;
2127 if (IS_8X8(mb_type) || IS_8X16(mb_type)) {
2128 for (y = 0; y < 16; y++)
2129 pict->data[0][16 * mb_x + 8 + (16 * mb_y + y) *
2130 pict->linesize[0]] ^= 0x80;
2132 if (IS_8X8(mb_type) && mv_sample_log2 >= 2) {
2133 int dm = 1 << (mv_sample_log2 - 2);
2134 for (i = 0; i < 4; i++) {
2135 int sx = mb_x * 16 + 8 * (i & 1);
2136 int sy = mb_y * 16 + 8 * (i >> 1);
2137 int xy = (mb_x * 2 + (i & 1) +
2138 (mb_y * 2 + (i >> 1)) * mv_stride) << (mv_sample_log2 - 1);
2140 int32_t *mv = (int32_t *) &p->motion_val[0][xy];
2141 if (mv[0] != mv[dm] ||
2142 mv[dm * mv_stride] != mv[dm * (mv_stride + 1)])
2143 for (y = 0; y < 8; y++)
2144 pict->data[0][sx + 4 + (sy + y) * pict->linesize[0]] ^= 0x80;
2145 if (mv[0] != mv[dm * mv_stride] || mv[dm] != mv[dm * (mv_stride + 1)])
2146 *(uint64_t *)(pict->data[0] + sx + (sy + 4) *
2147 pict->linesize[0]) ^= 0x8080808080808080ULL;
2151 if (IS_INTERLACED(mb_type) &&
2152 avctx->codec->id == AV_CODEC_ID_H264) {
2156 mbskip_table[mb_index] = 0;
2162 void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
2164 ff_print_debug_info2(s->avctx, p, pict, s->mbskip_table, &s->low_delay,
2165 s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
2168 int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
2170 AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
2171 int offset = 2*s->mb_stride + 1;
2173 return AVERROR(ENOMEM);
2174 av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
2175 ref->size -= offset;
2176 ref->data += offset;
2177 return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
2180 static inline int hpel_motion_lowres(MpegEncContext *s,
2181 uint8_t *dest, uint8_t *src,
2182 int field_based, int field_select,
2183 int src_x, int src_y,
2184 int width, int height, int stride,
2185 int h_edge_pos, int v_edge_pos,
2186 int w, int h, h264_chroma_mc_func *pix_op,
2187 int motion_x, int motion_y)
2189 const int lowres = s->avctx->lowres;
2190 const int op_index = FFMIN(lowres, 2);
2191 const int s_mask = (2 << lowres) - 1;
2195 if (s->quarter_sample) {
2200 sx = motion_x & s_mask;
2201 sy = motion_y & s_mask;
2202 src_x += motion_x >> lowres + 1;
2203 src_y += motion_y >> lowres + 1;
2205 src += src_y * stride + src_x;
2207 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
2208 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2209 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w + 1,
2210 (h + 1) << field_based, src_x,
2211 src_y << field_based,
2214 src = s->edge_emu_buffer;
2218 sx = (sx << 2) >> lowres;
2219 sy = (sy << 2) >> lowres;
2222 pix_op[op_index](dest, src, stride, h, sx, sy);
2226 /* apply one mpeg motion vector to the three components */
2227 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
2234 uint8_t **ref_picture,
2235 h264_chroma_mc_func *pix_op,
2236 int motion_x, int motion_y,
2239 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2240 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy,
2242 const int lowres = s->avctx->lowres;
2243 const int op_index = FFMIN(lowres-1+s->chroma_x_shift, 2);
2244 const int block_s = 8>>lowres;
2245 const int s_mask = (2 << lowres) - 1;
2246 const int h_edge_pos = s->h_edge_pos >> lowres;
2247 const int v_edge_pos = s->v_edge_pos >> lowres;
2248 linesize = s->current_picture.f.linesize[0] << field_based;
2249 uvlinesize = s->current_picture.f.linesize[1] << field_based;
2251 // FIXME obviously not perfect but qpel will not work in lowres anyway
2252 if (s->quarter_sample) {
2258 motion_y += (bottom_field - field_select)*((1 << lowres)-1);
2261 sx = motion_x & s_mask;
2262 sy = motion_y & s_mask;
2263 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
2264 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
2266 if (s->out_format == FMT_H263) {
2267 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
2268 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
2269 uvsrc_x = src_x >> 1;
2270 uvsrc_y = src_y >> 1;
2271 } else if (s->out_format == FMT_H261) {
2272 // even chroma mv's are full pel in H261
2275 uvsx = (2 * mx) & s_mask;
2276 uvsy = (2 * my) & s_mask;
2277 uvsrc_x = s->mb_x * block_s + (mx >> lowres);
2278 uvsrc_y = mb_y * block_s + (my >> lowres);
2280 if(s->chroma_y_shift){
2285 uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
2286 uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
2288 if(s->chroma_x_shift){
2292 uvsy = motion_y & s_mask;
2294 uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
2297 uvsx = motion_x & s_mask;
2298 uvsy = motion_y & s_mask;
2305 ptr_y = ref_picture[0] + src_y * linesize + src_x;
2306 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
2307 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
2309 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
2310 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
2311 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
2312 linesize >> field_based, 17, 17 + field_based,
2313 src_x, src_y << field_based, h_edge_pos,
2315 ptr_y = s->edge_emu_buffer;
2316 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2317 uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
2318 s->vdsp.emulated_edge_mc(uvbuf , ptr_cb, uvlinesize >> field_based, 9,
2320 uvsrc_x, uvsrc_y << field_based,
2321 h_edge_pos >> 1, v_edge_pos >> 1);
2322 s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr, uvlinesize >> field_based, 9,
2324 uvsrc_x, uvsrc_y << field_based,
2325 h_edge_pos >> 1, v_edge_pos >> 1);
2327 ptr_cr = uvbuf + 16;
2331 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f.data
2333 dest_y += s->linesize;
2334 dest_cb += s->uvlinesize;
2335 dest_cr += s->uvlinesize;
2339 ptr_y += s->linesize;
2340 ptr_cb += s->uvlinesize;
2341 ptr_cr += s->uvlinesize;
2344 sx = (sx << 2) >> lowres;
2345 sy = (sy << 2) >> lowres;
2346 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
2348 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
2349 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
2350 uvsx = (uvsx << 2) >> lowres;
2351 uvsy = (uvsy << 2) >> lowres;
2353 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
2354 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
2357 // FIXME h261 lowres loop filter
2360 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
2361 uint8_t *dest_cb, uint8_t *dest_cr,
2362 uint8_t **ref_picture,
2363 h264_chroma_mc_func * pix_op,
2366 const int lowres = s->avctx->lowres;
2367 const int op_index = FFMIN(lowres, 2);
2368 const int block_s = 8 >> lowres;
2369 const int s_mask = (2 << lowres) - 1;
2370 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
2371 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
2372 int emu = 0, src_x, src_y, offset, sx, sy;
2375 if (s->quarter_sample) {
2380 /* In case of 8X8, we construct a single chroma motion vector
2381 with a special rounding */
2382 mx = ff_h263_round_chroma(mx);
2383 my = ff_h263_round_chroma(my);
2387 src_x = s->mb_x * block_s + (mx >> lowres + 1);
2388 src_y = s->mb_y * block_s + (my >> lowres + 1);
2390 offset = src_y * s->uvlinesize + src_x;
2391 ptr = ref_picture[1] + offset;
2392 if (s->flags & CODEC_FLAG_EMU_EDGE) {
2393 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
2394 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
2395 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
2396 9, 9, src_x, src_y, h_edge_pos, v_edge_pos);
2397 ptr = s->edge_emu_buffer;
2401 sx = (sx << 2) >> lowres;
2402 sy = (sy << 2) >> lowres;
2403 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
2405 ptr = ref_picture[2] + offset;
2407 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9,
2408 src_x, src_y, h_edge_pos, v_edge_pos);
2409 ptr = s->edge_emu_buffer;
2411 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
2415 * motion compensation of a single macroblock
2417 * @param dest_y luma destination pointer
2418 * @param dest_cb chroma cb/u destination pointer
2419 * @param dest_cr chroma cr/v destination pointer
2420 * @param dir direction (0->forward, 1->backward)
2421 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
2422 * @param pix_op halfpel motion compensation function (average or put normally)
2423 * the motion vectors are taken from s->mv and the MV type from s->mv_type
2425 static inline void MPV_motion_lowres(MpegEncContext *s,
2426 uint8_t *dest_y, uint8_t *dest_cb,
2428 int dir, uint8_t **ref_picture,
2429 h264_chroma_mc_func *pix_op)
2433 const int lowres = s->avctx->lowres;
2434 const int block_s = 8 >>lowres;
2439 switch (s->mv_type) {
2441 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2443 ref_picture, pix_op,
2444 s->mv[dir][0][0], s->mv[dir][0][1],
2450 for (i = 0; i < 4; i++) {
2451 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
2452 s->linesize) * block_s,
2453 ref_picture[0], 0, 0,
2454 (2 * mb_x + (i & 1)) * block_s,
2455 (2 * mb_y + (i >> 1)) * block_s,
2456 s->width, s->height, s->linesize,
2457 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
2458 block_s, block_s, pix_op,
2459 s->mv[dir][i][0], s->mv[dir][i][1]);
2461 mx += s->mv[dir][i][0];
2462 my += s->mv[dir][i][1];
2465 if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
2466 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
2470 if (s->picture_structure == PICT_FRAME) {
2472 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2473 1, 0, s->field_select[dir][0],
2474 ref_picture, pix_op,
2475 s->mv[dir][0][0], s->mv[dir][0][1],
2478 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2479 1, 1, s->field_select[dir][1],
2480 ref_picture, pix_op,
2481 s->mv[dir][1][0], s->mv[dir][1][1],
2484 if (s->picture_structure != s->field_select[dir][0] + 1 &&
2485 s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
2486 ref_picture = s->current_picture_ptr->f.data;
2489 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2490 0, 0, s->field_select[dir][0],
2491 ref_picture, pix_op,
2493 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
2497 for (i = 0; i < 2; i++) {
2498 uint8_t **ref2picture;
2500 if (s->picture_structure == s->field_select[dir][i] + 1 ||
2501 s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
2502 ref2picture = ref_picture;
2504 ref2picture = s->current_picture_ptr->f.data;
2507 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2508 0, 0, s->field_select[dir][i],
2509 ref2picture, pix_op,
2510 s->mv[dir][i][0], s->mv[dir][i][1] +
2511 2 * block_s * i, block_s, mb_y >> 1);
2513 dest_y += 2 * block_s * s->linesize;
2514 dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2515 dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
2519 if (s->picture_structure == PICT_FRAME) {
2520 for (i = 0; i < 2; i++) {
2522 for (j = 0; j < 2; j++) {
2523 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2525 ref_picture, pix_op,
2526 s->mv[dir][2 * i + j][0],
2527 s->mv[dir][2 * i + j][1],
2530 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2533 for (i = 0; i < 2; i++) {
2534 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
2535 0, 0, s->picture_structure != i + 1,
2536 ref_picture, pix_op,
2537 s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
2538 2 * block_s, mb_y >> 1);
2540 // after put we make avg of the same block
2541 pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
2543 // opposite parity is always in the same
2544 // frame if this is second field
2545 if (!s->first_field) {
2546 ref_picture = s->current_picture_ptr->f.data;
2557 * find the lowest MB row referenced in the MVs
2559 int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
2561 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
2562 int my, off, i, mvs;
2564 if (s->picture_structure != PICT_FRAME || s->mcsel)
2567 switch (s->mv_type) {
2581 for (i = 0; i < mvs; i++) {
2582 my = s->mv[dir][i][1]<<qpel_shift;
2583 my_max = FFMAX(my_max, my);
2584 my_min = FFMIN(my_min, my);
2587 off = (FFMAX(-my_min, my_max) + 63) >> 6;
2589 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
2591 return s->mb_height-1;
2594 /* put block[] to dest[] */
2595 static inline void put_dct(MpegEncContext *s,
2596 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2598 s->dct_unquantize_intra(s, block, i, qscale);
2599 s->dsp.idct_put (dest, line_size, block);
2602 /* add block[] to dest[] */
2603 static inline void add_dct(MpegEncContext *s,
2604 int16_t *block, int i, uint8_t *dest, int line_size)
2606 if (s->block_last_index[i] >= 0) {
2607 s->dsp.idct_add (dest, line_size, block);
2611 static inline void add_dequant_dct(MpegEncContext *s,
2612 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
2614 if (s->block_last_index[i] >= 0) {
2615 s->dct_unquantize_inter(s, block, i, qscale);
2617 s->dsp.idct_add (dest, line_size, block);
2622 * Clean dc, ac, coded_block for the current non-intra MB.
2624 void ff_clean_intra_table_entries(MpegEncContext *s)
2626 int wrap = s->b8_stride;
2627 int xy = s->block_index[0];
2630 s->dc_val[0][xy + 1 ] =
2631 s->dc_val[0][xy + wrap] =
2632 s->dc_val[0][xy + 1 + wrap] = 1024;
2634 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
2635 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
2636 if (s->msmpeg4_version>=3) {
2637 s->coded_block[xy ] =
2638 s->coded_block[xy + 1 ] =
2639 s->coded_block[xy + wrap] =
2640 s->coded_block[xy + 1 + wrap] = 0;
2643 wrap = s->mb_stride;
2644 xy = s->mb_x + s->mb_y * wrap;
2646 s->dc_val[2][xy] = 1024;
2648 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
2649 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
2651 s->mbintra_table[xy]= 0;
2654 /* generic function called after a macroblock has been parsed by the
2655 decoder or after it has been encoded by the encoder.
2657 Important variables used:
2658 s->mb_intra : true if intra macroblock
2659 s->mv_dir : motion vector direction
2660 s->mv_type : motion vector type
2661 s->mv : motion vector
2662 s->interlaced_dct : true if interlaced dct used (mpeg2)
2664 static av_always_inline
2665 void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2666 int lowres_flag, int is_mpeg12)
2668 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
2669 if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){
2670 ff_xvmc_decode_mb(s);//xvmc uses pblocks
2674 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
2675 /* print DCT coefficients */
2677 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
2679 for(j=0; j<64; j++){
2680 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
2682 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2686 s->current_picture.qscale_table[mb_xy] = s->qscale;
2688 /* update DC predictors for P macroblocks */
2690 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
2691 if(s->mbintra_table[mb_xy])
2692 ff_clean_intra_table_entries(s);
2696 s->last_dc[2] = 128 << s->intra_dc_precision;
2699 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
2700 s->mbintra_table[mb_xy]=1;
2702 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
2703 uint8_t *dest_y, *dest_cb, *dest_cr;
2704 int dct_linesize, dct_offset;
2705 op_pixels_func (*op_pix)[4];
2706 qpel_mc_func (*op_qpix)[16];
2707 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
2708 const int uvlinesize = s->current_picture.f.linesize[1];
2709 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
2710 const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
2712 /* avoid copy if macroblock skipped in last frame too */
2713 /* skip only during decoding as we might trash the buffers during encoding a bit */
2715 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
2717 if (s->mb_skipped) {
2719 av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
2721 } else if(!s->current_picture.reference) {
2724 *mbskip_ptr = 0; /* not skipped */
2728 dct_linesize = linesize << s->interlaced_dct;
2729 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
2733 dest_cb= s->dest[1];
2734 dest_cr= s->dest[2];
2736 dest_y = s->b_scratchpad;
2737 dest_cb= s->b_scratchpad+16*linesize;
2738 dest_cr= s->b_scratchpad+32*linesize;
2742 /* motion handling */
2743 /* decoding or more than one mb_type (MC was already done otherwise) */
2746 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2747 if (s->mv_dir & MV_DIR_FORWARD) {
2748 ff_thread_await_progress(&s->last_picture_ptr->tf,
2749 ff_MPV_lowest_referenced_row(s, 0),
2752 if (s->mv_dir & MV_DIR_BACKWARD) {
2753 ff_thread_await_progress(&s->next_picture_ptr->tf,
2754 ff_MPV_lowest_referenced_row(s, 1),
2760 h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2762 if (s->mv_dir & MV_DIR_FORWARD) {
2763 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix);
2764 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2766 if (s->mv_dir & MV_DIR_BACKWARD) {
2767 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix);
2770 op_qpix= s->me.qpel_put;
2771 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2772 op_pix = s->hdsp.put_pixels_tab;
2774 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2776 if (s->mv_dir & MV_DIR_FORWARD) {
2777 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
2778 op_pix = s->hdsp.avg_pixels_tab;
2779 op_qpix= s->me.qpel_avg;
2781 if (s->mv_dir & MV_DIR_BACKWARD) {
2782 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
2787 /* skip dequant / idct if we are really late ;) */
2788 if(s->avctx->skip_idct){
2789 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2790 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2791 || s->avctx->skip_idct >= AVDISCARD_ALL)
2795 /* add dct residue */
2796 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2797 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2798 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2799 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2800 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2801 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2803 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2804 if (s->chroma_y_shift){
2805 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2806 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2810 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2811 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2812 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2813 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2816 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2817 add_dct(s, block[0], 0, dest_y , dct_linesize);
2818 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2819 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2820 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2822 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2823 if(s->chroma_y_shift){//Chroma420
2824 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2825 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2828 dct_linesize = uvlinesize << s->interlaced_dct;
2829 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2831 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2832 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2833 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2834 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2835 if(!s->chroma_x_shift){//Chroma444
2836 add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2837 add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2838 add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2839 add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2844 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2845 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2848 /* dct only in intra block */
2849 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2850 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2851 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2852 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2853 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2855 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2856 if(s->chroma_y_shift){
2857 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2858 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2862 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2863 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2864 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2865 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2869 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2870 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2871 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2872 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2874 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2875 if(s->chroma_y_shift){
2876 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
2877 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
2880 dct_linesize = uvlinesize << s->interlaced_dct;
2881 dct_offset = s->interlaced_dct? uvlinesize : uvlinesize*block_size;
2883 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
2884 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
2885 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2886 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2887 if(!s->chroma_x_shift){//Chroma444
2888 s->dsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
2889 s->dsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
2890 s->dsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2891 s->dsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2899 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2900 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2901 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2906 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
2908 if(s->out_format == FMT_MPEG1) {
2909 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1);
2910 else MPV_decode_mb_internal(s, block, 0, 1);
2913 if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0);
2914 else MPV_decode_mb_internal(s, block, 0, 0);
2918 * @param h is the normal height, this will be reduced automatically if needed for the last row
2920 void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
2921 Picture *last, int y, int h, int picture_structure,
2922 int first_field, int draw_edges, int low_delay,
2923 int v_edge_pos, int h_edge_pos)
2925 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2926 int hshift = desc->log2_chroma_w;
2927 int vshift = desc->log2_chroma_h;
2928 const int field_pic = picture_structure != PICT_FRAME;
2934 if (!avctx->hwaccel &&
2935 !(avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) &&
2938 !(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
2939 int *linesize = cur->f.linesize;
2940 int sides = 0, edge_h;
2941 if (y==0) sides |= EDGE_TOP;
2942 if (y + h >= v_edge_pos)
2943 sides |= EDGE_BOTTOM;
2945 edge_h= FFMIN(h, v_edge_pos - y);
2947 dsp->draw_edges(cur->f.data[0] + y * linesize[0],
2948 linesize[0], h_edge_pos, edge_h,
2949 EDGE_WIDTH, EDGE_WIDTH, sides);
2950 dsp->draw_edges(cur->f.data[1] + (y >> vshift) * linesize[1],
2951 linesize[1], h_edge_pos >> hshift, edge_h >> vshift,
2952 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2953 dsp->draw_edges(cur->f.data[2] + (y >> vshift) * linesize[2],
2954 linesize[2], h_edge_pos >> hshift, edge_h >> vshift,
2955 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2958 h = FFMIN(h, avctx->height - y);
2960 if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
2962 if (avctx->draw_horiz_band) {
2964 int offset[AV_NUM_DATA_POINTERS];
2967 if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay ||
2968 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
2975 if (cur->f.pict_type == AV_PICTURE_TYPE_B &&
2976 picture_structure == PICT_FRAME &&
2977 avctx->codec_id != AV_CODEC_ID_SVQ3) {
2978 for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
2981 offset[0]= y * src->linesize[0];
2983 offset[2]= (y >> vshift) * src->linesize[1];
2984 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
2990 avctx->draw_horiz_band(avctx, src, offset,
2991 y, picture_structure, h);
2995 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2997 int draw_edges = s->unrestricted_mv && !s->intra_only;
2998 ff_draw_horiz_band(s->avctx, &s->dsp, &s->current_picture,
2999 &s->last_picture, y, h, s->picture_structure,
3000 s->first_field, draw_edges, s->low_delay,
3001 s->v_edge_pos, s->h_edge_pos);
3004 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
3005 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
3006 const int uvlinesize = s->current_picture.f.linesize[1];
3007 const int mb_size= 4 - s->avctx->lowres;
3009 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
3010 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
3011 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
3012 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
3013 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
3014 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;
3015 //block_index is not used by mpeg2, so it is not affected by chroma_format
3017 s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size);
3018 s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3019 s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
3021 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3023 if(s->picture_structure==PICT_FRAME){
3024 s->dest[0] += s->mb_y * linesize << mb_size;
3025 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3026 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
3028 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
3029 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3030 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
3031 av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
3037 * Permute an 8x8 block.
3038 * @param block the block which will be permuted according to the given permutation vector
3039 * @param permutation the permutation vector
3040 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
3041 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
3042 * (inverse) permutated to scantable order!
3044 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
3050 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
3052 for(i=0; i<=last; i++){
3053 const int j= scantable[i];
3058 for(i=0; i<=last; i++){
3059 const int j= scantable[i];
3060 const int perm_j= permutation[j];
3061 block[perm_j]= temp[j];
3065 void ff_mpeg_flush(AVCodecContext *avctx){
3067 MpegEncContext *s = avctx->priv_data;
3069 if(s==NULL || s->picture==NULL)
3072 for (i = 0; i < MAX_PICTURE_COUNT; i++)
3073 ff_mpeg_unref_picture(s, &s->picture[i]);
3074 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
3076 ff_mpeg_unref_picture(s, &s->current_picture);
3077 ff_mpeg_unref_picture(s, &s->last_picture);
3078 ff_mpeg_unref_picture(s, &s->next_picture);
3080 s->mb_x= s->mb_y= 0;
3083 s->parse_context.state= -1;
3084 s->parse_context.frame_start_found= 0;
3085 s->parse_context.overread= 0;
3086 s->parse_context.overread_index= 0;
3087 s->parse_context.index= 0;
3088 s->parse_context.last_index= 0;
3089 s->bitstream_buffer_size=0;
3093 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
3094 int16_t *block, int n, int qscale)
3096 int i, level, nCoeffs;
3097 const uint16_t *quant_matrix;
3099 nCoeffs= s->block_last_index[n];
3101 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3102 /* XXX: only mpeg1 */
3103 quant_matrix = s->intra_matrix;
3104 for(i=1;i<=nCoeffs;i++) {
3105 int j= s->intra_scantable.permutated[i];
3110 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3111 level = (level - 1) | 1;
3114 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3115 level = (level - 1) | 1;
3122 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
3123 int16_t *block, int n, int qscale)
3125 int i, level, nCoeffs;
3126 const uint16_t *quant_matrix;
3128 nCoeffs= s->block_last_index[n];
3130 quant_matrix = s->inter_matrix;
3131 for(i=0; i<=nCoeffs; i++) {
3132 int j= s->intra_scantable.permutated[i];
3137 level = (((level << 1) + 1) * qscale *
3138 ((int) (quant_matrix[j]))) >> 4;
3139 level = (level - 1) | 1;
3142 level = (((level << 1) + 1) * qscale *
3143 ((int) (quant_matrix[j]))) >> 4;
3144 level = (level - 1) | 1;
3151 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
3152 int16_t *block, int n, int qscale)
3154 int i, level, nCoeffs;
3155 const uint16_t *quant_matrix;
3157 if(s->alternate_scan) nCoeffs= 63;
3158 else nCoeffs= s->block_last_index[n];
3160 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3161 quant_matrix = s->intra_matrix;
3162 for(i=1;i<=nCoeffs;i++) {
3163 int j= s->intra_scantable.permutated[i];
3168 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3171 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3178 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
3179 int16_t *block, int n, int qscale)
3181 int i, level, nCoeffs;
3182 const uint16_t *quant_matrix;
3185 if(s->alternate_scan) nCoeffs= 63;
3186 else nCoeffs= s->block_last_index[n];
3188 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3190 quant_matrix = s->intra_matrix;
3191 for(i=1;i<=nCoeffs;i++) {
3192 int j= s->intra_scantable.permutated[i];
3197 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3200 level = (int)(level * qscale * quant_matrix[j]) >> 3;
3209 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
3210 int16_t *block, int n, int qscale)
3212 int i, level, nCoeffs;
3213 const uint16_t *quant_matrix;
3216 if(s->alternate_scan) nCoeffs= 63;
3217 else nCoeffs= s->block_last_index[n];
3219 quant_matrix = s->inter_matrix;
3220 for(i=0; i<=nCoeffs; i++) {
3221 int j= s->intra_scantable.permutated[i];
3226 level = (((level << 1) + 1) * qscale *
3227 ((int) (quant_matrix[j]))) >> 4;
3230 level = (((level << 1) + 1) * qscale *
3231 ((int) (quant_matrix[j]))) >> 4;
3240 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
3241 int16_t *block, int n, int qscale)
3243 int i, level, qmul, qadd;
3246 av_assert2(s->block_last_index[n]>=0);
3251 block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
3252 qadd = (qscale - 1) | 1;
3259 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
3261 for(i=1; i<=nCoeffs; i++) {
3265 level = level * qmul - qadd;
3267 level = level * qmul + qadd;
3274 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
3275 int16_t *block, int n, int qscale)
3277 int i, level, qmul, qadd;
3280 av_assert2(s->block_last_index[n]>=0);
3282 qadd = (qscale - 1) | 1;
3285 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
3287 for(i=0; i<=nCoeffs; i++) {
3291 level = level * qmul - qadd;
3293 level = level * qmul + qadd;
3301 * set qscale and update qscale dependent variables.
3303 void ff_set_qscale(MpegEncContext * s, int qscale)
3307 else if (qscale > 31)
3311 s->chroma_qscale= s->chroma_qscale_table[qscale];
3313 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
3314 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
3317 void ff_MPV_report_decode_progress(MpegEncContext *s)
3319 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
3320 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
3323 #if CONFIG_ERROR_RESILIENCE
3324 void ff_mpeg_er_frame_start(MpegEncContext *s)
3326 ERContext *er = &s->er;
3328 er->cur_pic = s->current_picture_ptr;
3329 er->last_pic = s->last_picture_ptr;
3330 er->next_pic = s->next_picture_ptr;
3332 er->pp_time = s->pp_time;
3333 er->pb_time = s->pb_time;
3334 er->quarter_sample = s->quarter_sample;
3335 er->partitioned_frame = s->partitioned_frame;
3337 ff_er_frame_start(er);
3339 #endif /* CONFIG_ERROR_RESILIENCE */