FFmpeg
Loading...
Searching...
No Matches
h264_slice.c
Go to the documentation of this file.
1/*
2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * H.264 / AVC / MPEG-4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28#include "config_components.h"
29
30#include "libavutil/avassert.h"
31#include "libavutil/mem.h"
32#include "libavutil/pixdesc.h"
33#include "libavutil/timecode.h"
34#include "decode.h"
35#include "cabac.h"
36#include "cabac_functions.h"
37#include "error_resilience.h"
38#include "avcodec.h"
39#include "h264.h"
40#include "h264dec.h"
41#include "h264data.h"
42#include "h264chroma.h"
43#include "h264_ps.h"
44#include "golomb.h"
45#include "mathops.h"
46#include "mpegutils.h"
47#include "rectangle.h"
48#include "libavutil/refstruct.h"
49#include "thread.h"
50#include "threadframe.h"
51
52static const uint8_t field_scan[16+1] = {
53 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
54 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
55 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
56 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
57};
58
59static const uint8_t field_scan8x8[64+1] = {
60 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
61 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
62 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
63 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
64 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
65 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
66 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
67 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
68 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
69 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
70 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
71 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
72 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
73 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
74 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
75 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
76};
77
78static const uint8_t field_scan8x8_cavlc[64+1] = {
79 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
80 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
81 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
82 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
83 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
84 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
85 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
86 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
87 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
88 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
89 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
90 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
91 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
92 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
93 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
94 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
95};
96
97// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
98static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
99 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
100 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
101 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
102 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
103 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
104 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
105 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
106 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
107 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
108 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
109 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
110 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
111 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
112 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
113 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
114 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
115};
116
117static void release_unused_pictures(H264Context *h, int remove_current)
118{
119 int i;
120
121 /* release non reference frames */
122 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
123 if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
124 (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
125 ff_h264_unref_picture(&h->DPB[i]);
126 }
127 }
128}
129
130static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
131{
132 const H264Context *h = sl->h264;
133 int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
134
135 av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
136 // edge emu needs blocksize + filter length - 1
137 // (= 21x21 for H.264)
138 av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
139
140 av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
141 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142 av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
143 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
144
145 if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
146 !sl->top_borders[0] || !sl->top_borders[1]) {
147 av_freep(&sl->bipred_scratchpad);
148 av_freep(&sl->edge_emu_buffer);
149 av_freep(&sl->top_borders[0]);
150 av_freep(&sl->top_borders[1]);
151
152 sl->bipred_scratchpad_allocated = 0;
153 sl->edge_emu_buffer_allocated = 0;
154 sl->top_borders_allocated[0] = 0;
155 sl->top_borders_allocated[1] = 0;
156 return AVERROR(ENOMEM);
157 }
158
159 return 0;
160}
161
162static int init_table_pools(H264Context *h)
163{
164 const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
165 const int mb_array_size = h->mb_stride * h->mb_height;
166 const int b4_stride = h->mb_width * 4 + 1;
167 const int b4_array_size = b4_stride * h->mb_height * 4;
168
169 h->qscale_table_pool = av_refstruct_pool_alloc(big_mb_num + h->mb_stride, 0);
170 h->mb_type_pool = av_refstruct_pool_alloc((big_mb_num + h->mb_stride) *
171 sizeof(uint32_t), 0);
172 h->motion_val_pool = av_refstruct_pool_alloc(2 * (b4_array_size + 4) *
173 sizeof(int16_t), 0);
174 h->ref_index_pool = av_refstruct_pool_alloc(4 * mb_array_size, 0);
175
176 if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
177 !h->ref_index_pool) {
178 av_refstruct_pool_uninit(&h->qscale_table_pool);
179 av_refstruct_pool_uninit(&h->mb_type_pool);
180 av_refstruct_pool_uninit(&h->motion_val_pool);
181 av_refstruct_pool_uninit(&h->ref_index_pool);
182 return AVERROR(ENOMEM);
183 }
184
185 return 0;
186}
187
188static int alloc_picture(H264Context *h, H264Picture *pic)
189{
190 int i, ret = 0;
191
192 av_assert0(!pic->f->data[0]);
193
194 if (h->sei.common.itut_t35.lcevc) {
195 ret = ff_frame_new_side_data_from_buf(h->avctx, pic->f, AV_FRAME_DATA_LCEVC, &h->sei.common.itut_t35.lcevc);
196 if (ret < 0)
197 return ret;
198 }
199
200 pic->tf.f = pic->f;
201 ret = ff_thread_get_ext_buffer(h->avctx, &pic->tf,
202 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
203 if (ret < 0)
204 goto fail;
205
206 if (pic->needs_fg) {
207 pic->f_grain->format = pic->f->format;
208 pic->f_grain->width = pic->f->width;
209 pic->f_grain->height = pic->f->height;
210 ret = ff_thread_get_buffer(h->avctx, pic->f_grain, 0);
211 if (ret < 0)
212 goto fail;
213 }
214
215 ret = ff_hwaccel_frame_priv_alloc(h->avctx, &pic->hwaccel_picture_private);
216 if (ret < 0)
217 goto fail;
218
219 if (h->decode_error_flags_pool) {
220 pic->decode_error_flags = av_refstruct_pool_get(h->decode_error_flags_pool);
221 if (!pic->decode_error_flags)
222 goto fail;
223 atomic_init(pic->decode_error_flags, 0);
224 }
225
226 if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
227 int h_chroma_shift, v_chroma_shift;
228 av_pix_fmt_get_chroma_sub_sample(pic->f->format,
229 &h_chroma_shift, &v_chroma_shift);
230
231 for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
232 memset(pic->f->data[1] + pic->f->linesize[1]*i,
233 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
234 memset(pic->f->data[2] + pic->f->linesize[2]*i,
235 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
236 }
237 }
238
239 if (!h->qscale_table_pool) {
240 ret = init_table_pools(h);
241 if (ret < 0)
242 goto fail;
243 }
244
245 pic->qscale_table_base = av_refstruct_pool_get(h->qscale_table_pool);
246 pic->mb_type_base = av_refstruct_pool_get(h->mb_type_pool);
247 if (!pic->qscale_table_base || !pic->mb_type_base)
248 goto fail;
249
250 pic->mb_type = pic->mb_type_base + 2 * h->mb_stride + 1;
251 pic->qscale_table = pic->qscale_table_base + 2 * h->mb_stride + 1;
252
253 for (i = 0; i < 2; i++) {
254 pic->motion_val_base[i] = av_refstruct_pool_get(h->motion_val_pool);
255 pic->ref_index[i] = av_refstruct_pool_get(h->ref_index_pool);
256 if (!pic->motion_val_base[i] || !pic->ref_index[i])
257 goto fail;
258
259 pic->motion_val[i] = pic->motion_val_base[i] + 4;
260 }
261
262 pic->pps = av_refstruct_ref_c(h->ps.pps);
263
264 pic->mb_width = h->mb_width;
265 pic->mb_height = h->mb_height;
266 pic->mb_stride = h->mb_stride;
267
268 return 0;
269fail:
270 ff_h264_unref_picture(pic);
271 return (ret < 0) ? ret : AVERROR(ENOMEM);
272}
273
274static int find_unused_picture(const H264Context *h)
275{
276 int i;
277
278 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
279 if (!h->DPB[i].f->buf[0])
280 return i;
281 }
282 return AVERROR_INVALIDDATA;
283}
284
285
286#define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
287
288#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
289 (((pic) && (pic) >= (old_ctx)->DPB && \
290 (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \
291 &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
292
293static void copy_picture_range(H264Picture **to, H264Picture *const *from, int count,
294 H264Context *new_base, const H264Context *old_base)
295{
296 int i;
297
298 for (i = 0; i < count; i++) {
299 av_assert1(!from[i] ||
300 IN_RANGE(from[i], old_base, 1) ||
301 IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
302 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
303 }
304}
305
306static void color_frame(AVFrame *frame, const int c[4])
307{
308 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
309
310 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
311
312 for (int p = 0; p < desc->nb_components; p++) {
313 uint8_t *dst = frame->data[p];
314 int is_chroma = p == 1 || p == 2;
315 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
316 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
317 if (desc->comp[0].depth >= 9) {
318 if (bytes >= 1)
319 ((uint16_t*)dst)[0] = c[p];
320 if (bytes >= 2)
321 av_memcpy_backptr(dst + 2, 2, 2 * (bytes - 1));
322 dst += frame->linesize[p];
323 for (int y = 1; y < height; y++) {
324 memcpy(dst, frame->data[p], 2*bytes);
325 dst += frame->linesize[p];
326 }
327 } else {
328 for (int y = 0; y < height; y++) {
329 memset(dst, c[p], bytes);
330 dst += frame->linesize[p];
331 }
332 }
333 }
334}
335
336static int h264_slice_header_init(H264Context *h);
337
338int ff_h264_update_thread_context(AVCodecContext *dst,
339 const AVCodecContext *src)
340{
341 H264Context *h = dst->priv_data, *h1 = src->priv_data;
342 int inited = h->context_initialized, err = 0;
343 int need_reinit = 0;
344 int i, ret;
345
346 if (dst == src)
347 return 0;
348
349 if (inited && !h1->ps.sps)
350 return AVERROR_INVALIDDATA;
351
352 if (inited &&
353 (h->width != h1->width ||
354 h->height != h1->height ||
355 h->mb_width != h1->mb_width ||
356 h->mb_height != h1->mb_height ||
357 !h->ps.sps ||
358 h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma ||
359 h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
360 h->ps.sps->vui.matrix_coeffs != h1->ps.sps->vui.matrix_coeffs)) {
361 need_reinit = 1;
362 }
363
364 /* copy block_offset since frame_start may not be called */
365 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
366
367 // SPS/PPS
368 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++)
369 av_refstruct_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
370 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++)
371 av_refstruct_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
372
373 av_refstruct_replace(&h->ps.pps, h1->ps.pps);
374 h->ps.sps = h1->ps.sps;
375
376 if (need_reinit || !inited) {
377 h->width = h1->width;
378 h->height = h1->height;
379 h->mb_height = h1->mb_height;
380 h->mb_width = h1->mb_width;
381 h->mb_num = h1->mb_num;
382 h->mb_stride = h1->mb_stride;
383 h->b_stride = h1->b_stride;
384 h->x264_build = h1->x264_build;
385
386 if (h->context_initialized || h1->context_initialized) {
387 if ((err = h264_slice_header_init(h)) < 0) {
388 av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
389 return err;
390 }
391 }
392
393 /* copy block_offset since frame_start may not be called */
394 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
395 }
396
397 h->width_from_caller = h1->width_from_caller;
398 h->height_from_caller = h1->height_from_caller;
399 h->first_field = h1->first_field;
400 h->picture_structure = h1->picture_structure;
401 h->mb_aff_frame = h1->mb_aff_frame;
402 h->droppable = h1->droppable;
403
404 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
405 ret = ff_h264_replace_picture(&h->DPB[i], &h1->DPB[i]);
406 if (ret < 0)
407 return ret;
408 }
409
410 h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
411 ret = ff_h264_replace_picture(&h->cur_pic, &h1->cur_pic);
412 if (ret < 0)
413 return ret;
414
415 h->enable_er = h1->enable_er;
416 h->workaround_bugs = h1->workaround_bugs;
417 h->droppable = h1->droppable;
418
419 // extradata/NAL handling
420 h->is_avc = h1->is_avc;
421 h->nal_length_size = h1->nal_length_size;
422
423 memcpy(&h->poc, &h1->poc, sizeof(h->poc));
424
425 memcpy(h->short_ref, h1->short_ref, sizeof(h->short_ref));
426 memcpy(h->long_ref, h1->long_ref, sizeof(h->long_ref));
427 memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
428 memcpy(h->last_pocs, h1->last_pocs, sizeof(h->last_pocs));
429
430 h->next_output_pic = h1->next_output_pic;
431 h->next_outputed_poc = h1->next_outputed_poc;
432 h->poc_offset = h1->poc_offset;
433
434 memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
435 h->nb_mmco = h1->nb_mmco;
436 h->mmco_reset = h1->mmco_reset;
437 h->explicit_ref_marking = h1->explicit_ref_marking;
438 h->long_ref_count = h1->long_ref_count;
439 h->short_ref_count = h1->short_ref_count;
440
441 copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
442 copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
443 copy_picture_range(h->delayed_pic, h1->delayed_pic,
444 FF_ARRAY_ELEMS(h->delayed_pic), h, h1);
445
446 h->frame_recovered = h1->frame_recovered;
447
448 ret = ff_h2645_sei_ctx_replace(&h->sei.common, &h1->sei.common);
449 if (ret < 0)
450 return ret;
451
452 h->sei.common.unregistered.x264_build = h1->sei.common.unregistered.x264_build;
453
454 if (!h->cur_pic_ptr)
455 return 0;
456
457 if (!h->droppable) {
458 err = ff_h264_execute_ref_pic_marking(h);
459 h->poc.prev_poc_msb = h->poc.poc_msb;
460 h->poc.prev_poc_lsb = h->poc.poc_lsb;
461 }
462 h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
463 h->poc.prev_frame_num = h->poc.frame_num;
464
465 h->recovery_frame = h1->recovery_frame;
466 h->non_gray = h1->non_gray;
467
468 return err;
469}
470
471int ff_h264_update_thread_context_for_user(AVCodecContext *dst,
472 const AVCodecContext *src)
473{
474 H264Context *h = dst->priv_data;
475 const H264Context *h1 = src->priv_data;
476
477 h->is_avc = h1->is_avc;
478 h->nal_length_size = h1->nal_length_size;
479
480 return 0;
481}
482
483static int h264_frame_start(H264Context *h)
484{
485 H264Picture *pic;
486 int i, ret;
487 const int pixel_shift = h->pixel_shift;
488
489 if (!ff_thread_can_start_frame(h->avctx)) {
490 av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
491 return AVERROR_BUG;
492 }
493
494 release_unused_pictures(h, 1);
495 h->cur_pic_ptr = NULL;
496
497 i = find_unused_picture(h);
498 if (i < 0) {
499 av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
500 return i;
501 }
502 pic = &h->DPB[i];
503
504 pic->reference = h->droppable ? 0 : h->picture_structure;
505 pic->field_picture = h->picture_structure != PICT_FRAME;
506 pic->frame_num = h->poc.frame_num;
507 /*
508 * Zero key_frame here; IDR markings per slice in frame or fields are ORed
509 * in later.
510 * See decode_nal_units().
511 */
512 pic->f->flags &= ~AV_FRAME_FLAG_KEY;
513 pic->mmco_reset = 0;
514 pic->recovered = 0;
515 pic->invalid_gap = 0;
516 pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
517
518 pic->f->pict_type = h->slice_ctx[0].slice_type;
519
520 pic->f->crop_left = h->crop_left;
521 pic->f->crop_right = h->crop_right;
522 pic->f->crop_top = h->crop_top;
523 pic->f->crop_bottom = h->crop_bottom;
524
525 pic->needs_fg =
526 h->sei.common.film_grain_characteristics &&
527 h->sei.common.film_grain_characteristics->present &&
528 !h->avctx->hwaccel &&
529 !(h->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
530
531 if ((ret = alloc_picture(h, pic)) < 0)
532 return ret;
533
534 h->cur_pic_ptr = pic;
535 ff_h264_unref_picture(&h->cur_pic);
536 if (CONFIG_ERROR_RESILIENCE) {
537 ff_h264_set_erpic(&h->er.cur_pic, NULL);
538 }
539
540 if ((ret = ff_h264_ref_picture(&h->cur_pic, h->cur_pic_ptr)) < 0)
541 return ret;
542
543 for (i = 0; i < h->nb_slice_ctx; i++) {
544 h->slice_ctx[i].linesize = h->cur_pic_ptr->f->linesize[0];
545 h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
546 }
547
548 if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
549 ff_er_frame_start(&h->er);
550 ff_h264_set_erpic(&h->er.last_pic, NULL);
551 ff_h264_set_erpic(&h->er.next_pic, NULL);
552 }
553
554 for (i = 0; i < 16; i++) {
555 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
556 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
557 }
558 for (i = 0; i < 16; i++) {
559 h->block_offset[16 + i] =
560 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
561 h->block_offset[48 + 16 + i] =
562 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
563 }
564
565 /* We mark the current picture as non-reference after allocating it, so
566 * that if we break out due to an error it can be released automatically
567 * in the next ff_mpv_frame_start().
568 */
569 h->cur_pic_ptr->reference = 0;
570
571 h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
572
573 h->next_output_pic = NULL;
574
575 h->postpone_filter = 0;
576
577 h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
578
579 if (h->sei.common.unregistered.x264_build >= 0)
580 h->x264_build = h->sei.common.unregistered.x264_build;
581
582 assert(h->cur_pic_ptr->long_ref == 0);
583
584 return 0;
585}
586
587static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
588 const uint8_t *src_y,
589 const uint8_t *src_cb, const uint8_t *src_cr,
590 int linesize, int uvlinesize,
591 int simple)
592{
593 uint8_t *top_border;
594 int top_idx = 1;
595 const int pixel_shift = h->pixel_shift;
596 int chroma444 = CHROMA444(h);
597 int chroma422 = CHROMA422(h);
598
599 src_y -= linesize;
600 src_cb -= uvlinesize;
601 src_cr -= uvlinesize;
602
603 if (!simple && FRAME_MBAFF(h)) {
604 if (sl->mb_y & 1) {
605 if (!MB_MBAFF(sl)) {
606 top_border = sl->top_borders[0][sl->mb_x];
607 AV_COPY128(top_border, src_y + 15 * linesize);
608 if (pixel_shift)
609 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
610 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
611 if (chroma444) {
612 if (pixel_shift) {
613 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
614 AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
615 AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
616 AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
617 } else {
618 AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
619 AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
620 }
621 } else if (chroma422) {
622 if (pixel_shift) {
623 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
624 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
625 } else {
626 AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
627 AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
628 }
629 } else {
630 if (pixel_shift) {
631 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
632 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
633 } else {
634 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
635 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
636 }
637 }
638 }
639 }
640 } else if (MB_MBAFF(sl)) {
641 top_idx = 0;
642 } else
643 return;
644 }
645
646 top_border = sl->top_borders[top_idx][sl->mb_x];
647 /* There are two lines saved, the line above the top macroblock
648 * of a pair, and the line above the bottom macroblock. */
649 AV_COPY128(top_border, src_y + 16 * linesize);
650 if (pixel_shift)
651 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
652
653 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
654 if (chroma444) {
655 if (pixel_shift) {
656 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
657 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
658 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
659 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
660 } else {
661 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
662 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
663 }
664 } else if (chroma422) {
665 if (pixel_shift) {
666 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
667 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
668 } else {
669 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
670 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
671 }
672 } else {
673 if (pixel_shift) {
674 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
675 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
676 } else {
677 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
678 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
679 }
680 }
681 }
682}
683
684/**
685 * Initialize implicit_weight table.
686 * @param field 0/1 initialize the weight for interlaced MBAFF
687 * -1 initializes the rest
688 */
689static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
690{
691 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
692
693 for (i = 0; i < 2; i++) {
694 sl->pwt.luma_weight_flag[i] = 0;
695 sl->pwt.chroma_weight_flag[i] = 0;
696 }
697
698 if (field < 0) {
699 if (h->picture_structure == PICT_FRAME) {
700 cur_poc = h->cur_pic_ptr->poc;
701 } else {
702 cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
703 }
704 if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
705 sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
706 sl->pwt.use_weight = 0;
707 sl->pwt.use_weight_chroma = 0;
708 return;
709 }
710 ref_start = 0;
711 ref_count0 = sl->ref_count[0];
712 ref_count1 = sl->ref_count[1];
713 } else {
714 cur_poc = h->cur_pic_ptr->field_poc[field];
715 ref_start = 16;
716 ref_count0 = 16 + 2 * sl->ref_count[0];
717 ref_count1 = 16 + 2 * sl->ref_count[1];
718 }
719
720 sl->pwt.use_weight = 2;
721 sl->pwt.use_weight_chroma = 2;
722 sl->pwt.luma_log2_weight_denom = 5;
723 sl->pwt.chroma_log2_weight_denom = 5;
724
725 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
726 int64_t poc0 = sl->ref_list[0][ref0].poc;
727 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
728 int w = 32;
729 if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
730 int poc1 = sl->ref_list[1][ref1].poc;
731 int td = av_clip_int8(poc1 - poc0);
732 if (td) {
733 int tb = av_clip_int8(cur_poc - poc0);
734 int tx = (16384 + (FFABS(td) >> 1)) / td;
735 int dist_scale_factor = (tb * tx + 32) >> 8;
736 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
737 w = 64 - dist_scale_factor;
738 }
739 }
740 if (field < 0) {
741 sl->pwt.implicit_weight[ref0][ref1][0] =
742 sl->pwt.implicit_weight[ref0][ref1][1] = w;
743 } else {
744 sl->pwt.implicit_weight[ref0][ref1][field] = w;
745 }
746 }
747 }
748}
749
750/**
751 * initialize scan tables
752 */
753static void init_scan_tables(H264Context *h)
754{
755 int i;
756 for (i = 0; i < 16; i++) {
757#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
758 h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
759 h->field_scan[i] = TRANSPOSE(field_scan[i]);
760#undef TRANSPOSE
761 }
762 for (i = 0; i < 64; i++) {
763#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
764 h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
765 h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
766 h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
767 h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
768#undef TRANSPOSE
769 }
770 if (h->ps.sps->transform_bypass) { // FIXME same ugly
771 memcpy(h->zigzag_scan_q0 , ff_zigzag_scan , sizeof(h->zigzag_scan_q0 ));
772 memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 ));
773 memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
774 memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 ));
775 memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
776 memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
777 } else {
778 memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 ));
779 memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 ));
780 memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
781 memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 ));
782 memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
783 memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
784 }
785}
786
787static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
788{
789#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
790 (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
791 CONFIG_H264_D3D12VA_HWACCEL + \
792 CONFIG_H264_NVDEC_HWACCEL + \
793 CONFIG_H264_NVDEC_CUARRAY_HWACCEL + \
794 CONFIG_H264_VAAPI_HWACCEL + \
795 CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
796 CONFIG_H264_VDPAU_HWACCEL + \
797 CONFIG_H264_VULKAN_HWACCEL)
798 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
799
800 switch (h->ps.sps->bit_depth_luma) {
801 case 9:
802 if (CHROMA444(h)) {
803 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
804 *fmt++ = AV_PIX_FMT_GBRP9;
805 } else
806 *fmt++ = AV_PIX_FMT_YUV444P9;
807 } else if (CHROMA422(h))
808 *fmt++ = AV_PIX_FMT_YUV422P9;
809 else
810 *fmt++ = AV_PIX_FMT_YUV420P9;
811 break;
812 case 10:
813#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
814 if (h->avctx->colorspace != AVCOL_SPC_RGB)
815 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
816#endif
817#if CONFIG_H264_VULKAN_HWACCEL
818 *fmt++ = AV_PIX_FMT_VULKAN;
819#endif
820#if CONFIG_H264_NVDEC_HWACCEL
821 *fmt++ = AV_PIX_FMT_CUDA;
822#endif
823#if CONFIG_H264_NVDEC_CUARRAY_HWACCEL
824 *fmt++ = AV_PIX_FMT_CUARRAY;
825#endif
826 if (CHROMA444(h)) {
827 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
828 *fmt++ = AV_PIX_FMT_GBRP10;
829 } else
830 *fmt++ = AV_PIX_FMT_YUV444P10;
831 } else if (CHROMA422(h))
832 *fmt++ = AV_PIX_FMT_YUV422P10;
833 else {
834#if CONFIG_H264_VAAPI_HWACCEL
835 // Just add as candidate. Whether VAProfileH264High10 usable or
836 // not is decided by vaapi_decode_make_config() defined in FFmpeg
837 // and vaQueryCodingProfile() defined in libva.
838 *fmt++ = AV_PIX_FMT_VAAPI;
839#endif
840 *fmt++ = AV_PIX_FMT_YUV420P10;
841 }
842 break;
843 case 12:
844#if CONFIG_H264_VULKAN_HWACCEL
845 *fmt++ = AV_PIX_FMT_VULKAN;
846#endif
847 if (CHROMA444(h)) {
848 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
849 *fmt++ = AV_PIX_FMT_GBRP12;
850 } else
851 *fmt++ = AV_PIX_FMT_YUV444P12;
852 } else if (CHROMA422(h))
853 *fmt++ = AV_PIX_FMT_YUV422P12;
854 else
855 *fmt++ = AV_PIX_FMT_YUV420P12;
856 break;
857 case 14:
858 if (CHROMA444(h)) {
859 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
860 *fmt++ = AV_PIX_FMT_GBRP14;
861 } else
862 *fmt++ = AV_PIX_FMT_YUV444P14;
863 } else if (CHROMA422(h))
864 *fmt++ = AV_PIX_FMT_YUV422P14;
865 else
866 *fmt++ = AV_PIX_FMT_YUV420P14;
867 break;
868 case 8:
869#if CONFIG_H264_VDPAU_HWACCEL
870 *fmt++ = AV_PIX_FMT_VDPAU;
871#endif
872#if CONFIG_H264_VULKAN_HWACCEL
873 *fmt++ = AV_PIX_FMT_VULKAN;
874#endif
875#if CONFIG_H264_NVDEC_HWACCEL
876 *fmt++ = AV_PIX_FMT_CUDA;
877#endif
878#if CONFIG_H264_NVDEC_CUARRAY_HWACCEL
879 *fmt++ = AV_PIX_FMT_CUARRAY;
880#endif
881#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
882 if (h->avctx->colorspace != AVCOL_SPC_RGB)
883 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
884#endif
885 if (CHROMA444(h)) {
886 if (h->avctx->colorspace == AVCOL_SPC_RGB)
887 *fmt++ = AV_PIX_FMT_GBRP;
888 else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
889 *fmt++ = AV_PIX_FMT_YUVJ444P;
890 else
891 *fmt++ = AV_PIX_FMT_YUV444P;
892 } else if (CHROMA422(h)) {
893 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
894 *fmt++ = AV_PIX_FMT_YUVJ422P;
895 else
896 *fmt++ = AV_PIX_FMT_YUV422P;
897 } else {
898#if CONFIG_H264_DXVA2_HWACCEL
899 *fmt++ = AV_PIX_FMT_DXVA2_VLD;
900#endif
901#if CONFIG_H264_D3D11VA_HWACCEL
902 *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
903 *fmt++ = AV_PIX_FMT_D3D11;
904#endif
905#if CONFIG_H264_D3D12VA_HWACCEL
906 *fmt++ = AV_PIX_FMT_D3D12;
907#endif
908#if CONFIG_H264_VAAPI_HWACCEL
909 *fmt++ = AV_PIX_FMT_VAAPI;
910#endif
911 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
912 *fmt++ = AV_PIX_FMT_YUVJ420P;
913 else
914 *fmt++ = AV_PIX_FMT_YUV420P;
915 }
916 break;
917 default:
918 av_log(h->avctx, AV_LOG_ERROR,
919 "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
920 return AVERROR_INVALIDDATA;
921 }
922
923 *fmt = AV_PIX_FMT_NONE;
924
925 for (int i = 0; pix_fmts[i] != AV_PIX_FMT_NONE; i++)
926 if (pix_fmts[i] == h->avctx->pix_fmt && !force_callback)
927 return pix_fmts[i];
928 return ff_get_format(h->avctx, pix_fmts);
929}
930
931/* export coded and cropped frame dimensions to AVCodecContext */
932static void init_dimensions(H264Context *h)
933{
934 const SPS *sps = h->ps.sps;
935 int cr = sps->crop_right;
936 int cl = sps->crop_left;
937 int ct = sps->crop_top;
938 int cb = sps->crop_bottom;
939 int width = h->width - (cr + cl);
940 int height = h->height - (ct + cb);
941 av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
942 av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
943
944 /* handle container cropping */
945 if (h->width_from_caller > 0 && h->height_from_caller > 0 &&
946 !sps->crop_top && !sps->crop_left &&
947 FFALIGN(h->width_from_caller, 16) == FFALIGN(width, 16) &&
948 FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
949 h->width_from_caller <= width &&
950 h->height_from_caller <= height) {
951 width = h->width_from_caller;
952 height = h->height_from_caller;
953 cl = 0;
954 ct = 0;
955 cr = h->width - width;
956 cb = h->height - height;
957 } else {
958 h->width_from_caller = 0;
959 h->height_from_caller = 0;
960 }
961
962 h->avctx->coded_width = h->width;
963 h->avctx->coded_height = h->height;
964 h->avctx->width = width;
965 h->avctx->height = height;
966 h->crop_right = cr;
967 h->crop_left = cl;
968 h->crop_top = ct;
969 h->crop_bottom = cb;
970}
971
972static int h264_slice_header_init(H264Context *h)
973{
974 const SPS *sps = h->ps.sps;
975 int i, ret;
976
977 if (!sps) {
978 ret = AVERROR_INVALIDDATA;
979 goto fail;
980 }
981
982 ff_set_sar(h->avctx, sps->vui.sar);
983 av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
984 &h->chroma_x_shift, &h->chroma_y_shift);
985
986 if (sps->timing_info_present_flag) {
987 int64_t den = sps->time_scale;
988 if (h->x264_build < 44U)
989 den *= 2;
990 av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
991 sps->num_units_in_tick * 2, den, 1 << 30);
992 }
993
994 ff_h264_free_tables(h);
995
996 h->first_field = 0;
997 h->prev_interlaced_frame = 1;
998
999 init_scan_tables(h);
1000 ret = ff_h264_alloc_tables(h);
1001 if (ret < 0) {
1002 av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
1003 goto fail;
1004 }
1005
1006 if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
1007 sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
1008 ) {
1009 av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
1010 sps->bit_depth_luma);
1011 ret = AVERROR_INVALIDDATA;
1012 goto fail;
1013 }
1014
1015 h->cur_bit_depth_luma =
1016 h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
1017 h->cur_chroma_format_idc = sps->chroma_format_idc;
1018 h->pixel_shift = sps->bit_depth_luma > 8;
1019 h->chroma_format_idc = sps->chroma_format_idc;
1020 h->bit_depth_luma = sps->bit_depth_luma;
1021
1022 ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
1023 sps->chroma_format_idc);
1024 ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
1025 ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
1026 ff_h264_pred_init(&h->hpc, AV_CODEC_ID_H264, sps->bit_depth_luma,
1027 sps->chroma_format_idc);
1028 ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
1029
1030 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
1031 ff_h264_slice_context_init(h, &h->slice_ctx[0]);
1032 } else {
1033 for (i = 0; i < h->nb_slice_ctx; i++) {
1034 H264SliceContext *sl = &h->slice_ctx[i];
1035
1036 sl->h264 = h;
1037 sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
1038 sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride;
1039 sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride;
1040
1041 ff_h264_slice_context_init(h, sl);
1042 }
1043 }
1044
1045 h->context_initialized = 1;
1046
1047 return 0;
1048fail:
1049 ff_h264_free_tables(h);
1050 h->context_initialized = 0;
1051 return ret;
1052}
1053
1054static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1055{
1056 switch (a) {
1057 case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1058 case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1059 case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1060 default:
1061 return a;
1062 }
1063}
1064
1065static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1066{
1067 const SPS *sps;
1068 int needs_reinit = 0, must_reinit, ret;
1069
1070 if (first_slice)
1071 av_refstruct_replace(&h->ps.pps, h->ps.pps_list[sl->pps_id]);
1072
1073 if (h->ps.sps != h->ps.pps->sps) {
1074 h->ps.sps = h->ps.pps->sps;
1075
1076 if (h->mb_width != h->ps.sps->mb_width ||
1077 h->mb_height != h->ps.sps->mb_height ||
1078 h->cur_bit_depth_luma != h->ps.sps->bit_depth_luma ||
1079 h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1080 )
1081 needs_reinit = 1;
1082
1083 if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||
1084 h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1085 needs_reinit = 1;
1086 }
1087 sps = h->ps.sps;
1088
1089 must_reinit = (h->context_initialized &&
1090 ( 16*sps->mb_width != h->avctx->coded_width
1091 || 16*sps->mb_height != h->avctx->coded_height
1092 || h->cur_bit_depth_luma != sps->bit_depth_luma
1093 || h->cur_chroma_format_idc != sps->chroma_format_idc
1094 || h->mb_width != sps->mb_width
1095 || h->mb_height != sps->mb_height
1096 ));
1097 if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1098 || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1099 must_reinit = 1;
1100
1101 if (first_slice && av_cmp_q(sps->vui.sar, h->avctx->sample_aspect_ratio))
1102 must_reinit = 1;
1103
1104 if (!h->setup_finished) {
1105 h->avctx->profile = ff_h264_get_profile(sps);
1106 h->avctx->level = sps->level_idc;
1107 h->avctx->refs = sps->ref_frame_count;
1108
1109 h->mb_width = sps->mb_width;
1110 h->mb_height = sps->mb_height;
1111 h->mb_num = h->mb_width * h->mb_height;
1112 h->mb_stride = h->mb_width + 1;
1113
1114 h->b_stride = h->mb_width * 4;
1115
1116 h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1117
1118 h->width = 16 * h->mb_width;
1119 h->height = 16 * h->mb_height;
1120
1121 init_dimensions(h);
1122
1123 if (sps->vui.video_signal_type_present_flag) {
1124 h->avctx->color_range = sps->vui.video_full_range_flag > 0 ? AVCOL_RANGE_JPEG
1125 : AVCOL_RANGE_MPEG;
1126 if (sps->vui.colour_description_present_flag) {
1127 if (h->avctx->colorspace != sps->vui.matrix_coeffs)
1128 needs_reinit = 1;
1129 h->avctx->color_primaries = sps->vui.colour_primaries;
1130 h->avctx->color_trc = sps->vui.transfer_characteristics;
1131 h->avctx->colorspace = sps->vui.matrix_coeffs;
1132 }
1133 }
1134
1135 if (h->sei.common.alternative_transfer.present &&
1136 av_color_transfer_name(h->sei.common.alternative_transfer.preferred_transfer_characteristics) &&
1137 h->sei.common.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1138 h->avctx->color_trc = h->sei.common.alternative_transfer.preferred_transfer_characteristics;
1139 }
1140 }
1141 h->avctx->chroma_sample_location = sps->vui.chroma_location;
1142
1143 if (!h->context_initialized || must_reinit || needs_reinit) {
1144 int flush_changes = h->context_initialized;
1145 h->context_initialized = 0;
1146 if (sl != h->slice_ctx) {
1147 av_log(h->avctx, AV_LOG_ERROR,
1148 "changing width %d -> %d / height %d -> %d on "
1149 "slice %d\n",
1150 h->width, h->avctx->coded_width,
1151 h->height, h->avctx->coded_height,
1152 h->current_slice + 1);
1153 return AVERROR_INVALIDDATA;
1154 }
1155
1156 av_assert1(first_slice);
1157
1158 if (flush_changes)
1159 ff_h264_flush_change(h);
1160
1161 if ((ret = get_pixel_format(h, must_reinit || needs_reinit)) < 0)
1162 return ret;
1163 h->avctx->pix_fmt = ret;
1164
1165 av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1166 "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1167
1168 if ((ret = h264_slice_header_init(h)) < 0) {
1169 av_log(h->avctx, AV_LOG_ERROR,
1170 "h264_slice_header_init() failed\n");
1171 return ret;
1172 }
1173 }
1174
1175 return 0;
1176}
1177
1178static int h264_export_frame_props(H264Context *h)
1179{
1180 const SPS *sps = h->ps.sps;
1181 H264Picture *cur = h->cur_pic_ptr;
1182 AVFrame *out = cur->f;
1183 int interlaced_frame = 0, top_field_first = 0;
1184 int ret;
1185
1186 out->flags &= ~AV_FRAME_FLAG_INTERLACED;
1187 out->repeat_pict = 0;
1188
1189 /* Signal interlacing information externally. */
1190 /* Prioritize picture timing SEI information over used
1191 * decoding process if it exists. */
1192 if (h->sei.picture_timing.present) {
1193 int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1194 h->avctx);
1195 if (ret < 0) {
1196 av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1197 if (h->avctx->err_recognition & AV_EF_EXPLODE)
1198 return ret;
1199 h->sei.picture_timing.present = 0;
1200 }
1201 }
1202
1203 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1204 const H264SEIPictureTiming *pt = &h->sei.picture_timing;
1205 switch (pt->pic_struct) {
1206 case H264_SEI_PIC_STRUCT_FRAME:
1207 break;
1208 case H264_SEI_PIC_STRUCT_TOP_FIELD:
1209 case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1210 interlaced_frame = 1;
1211 break;
1212 case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1213 case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1214 if (FIELD_OR_MBAFF_PICTURE(h))
1215 interlaced_frame = 1;
1216 else
1217 // try to flag soft telecine progressive
1218 interlaced_frame = !!h->prev_interlaced_frame;
1219 break;
1220 case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1221 case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1222 /* Signal the possibility of telecined film externally
1223 * (pic_struct 5,6). From these hints, let the applications
1224 * decide if they apply deinterlacing. */
1225 out->repeat_pict = 1;
1226 break;
1227 case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1228 out->repeat_pict = 2;
1229 break;
1230 case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1231 out->repeat_pict = 4;
1232 break;
1233 }
1234
1235 if ((pt->ct_type & 3) &&
1236 pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1237 interlaced_frame = ((pt->ct_type & (1 << 1)) != 0);
1238 } else {
1239 /* Derive interlacing flag from used decoding process. */
1240 interlaced_frame = !!FIELD_OR_MBAFF_PICTURE(h);
1241 }
1242 h->prev_interlaced_frame = interlaced_frame;
1243
1244 if (cur->field_poc[0] != cur->field_poc[1]) {
1245 /* Derive top_field_first from field pocs. */
1246 top_field_first = (cur->field_poc[0] < cur->field_poc[1]);
1247 } else {
1248 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1249 /* Use picture timing SEI information. Even if it is a
1250 * information of a past frame, better than nothing. */
1251 if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1252 h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1253 top_field_first = 1;
1254 } else if (interlaced_frame) {
1255 /* Default to top field first when pic_struct_present_flag
1256 * is not set but interlaced frame detected */
1257 top_field_first = 1;
1258 } // else
1259 /* Most likely progressive */
1260 }
1261
1262 out->flags |= (AV_FRAME_FLAG_INTERLACED * interlaced_frame) |
1263 (AV_FRAME_FLAG_TOP_FIELD_FIRST * top_field_first);
1264
1265 ret = ff_h2645_sei_to_frame(out, &h->sei.common, AV_CODEC_ID_H264, h->avctx,
1266 &sps->vui, sps->bit_depth_luma, sps->bit_depth_chroma,
1267 cur->poc + (unsigned)(h->poc_offset << 5));
1268 if (ret < 0)
1269 return ret;
1270
1271 if (h->sei.picture_timing.timecode_cnt > 0) {
1272 uint32_t *tc_sd;
1273 char tcbuf[AV_TIMECODE_STR_SIZE];
1274 AVFrameSideData *tcside;
1275 ret = ff_frame_new_side_data(h->avctx, out, AV_FRAME_DATA_S12M_TIMECODE,
1276 sizeof(uint32_t)*4, &tcside);
1277 if (ret < 0)
1278 return ret;
1279
1280 if (tcside) {
1281 tc_sd = (uint32_t*)tcside->data;
1282 tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1283
1284 for (int i = 0; i < tc_sd[0]; i++) {
1285 int drop = h->sei.picture_timing.timecode[i].dropframe;
1286 int hh = h->sei.picture_timing.timecode[i].hours;
1287 int mm = h->sei.picture_timing.timecode[i].minutes;
1288 int ss = h->sei.picture_timing.timecode[i].seconds;
1289 int ff = h->sei.picture_timing.timecode[i].frame;
1290
1291 tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1292 av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1293 av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1294 }
1295 }
1296 h->sei.picture_timing.timecode_cnt = 0;
1297 }
1298
1299 return 0;
1300}
1301
1302static int h264_select_output_frame(H264Context *h)
1303{
1304 const SPS *sps = h->ps.sps;
1305 H264Picture *out = h->cur_pic_ptr;
1306 H264Picture *cur = h->cur_pic_ptr;
1307 int i, pics, out_of_order, out_idx;
1308
1309 cur->mmco_reset = h->mmco_reset;
1310 h->mmco_reset = 0;
1311
1312 if (sps->bitstream_restriction_flag ||
1313 h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1314 h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1315 }
1316
1317 for (i = 0; 1; i++) {
1318 if(i == H264_MAX_DPB_FRAMES || cur->poc < h->last_pocs[i]){
1319 if(i)
1320 h->last_pocs[i-1] = cur->poc;
1321 break;
1322 } else if(i) {
1323 h->last_pocs[i-1]= h->last_pocs[i];
1324 }
1325 }
1326 out_of_order = H264_MAX_DPB_FRAMES - i;
1327 if( cur->f->pict_type == AV_PICTURE_TYPE_B
1328 || (h->last_pocs[H264_MAX_DPB_FRAMES-2] > INT_MIN && h->last_pocs[H264_MAX_DPB_FRAMES-1] - (int64_t)h->last_pocs[H264_MAX_DPB_FRAMES-2] > 2))
1329 out_of_order = FFMAX(out_of_order, 1);
1330 if (out_of_order == H264_MAX_DPB_FRAMES) {
1331 av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1332 for (i = 1; i < H264_MAX_DPB_FRAMES; i++)
1333 h->last_pocs[i] = INT_MIN;
1334 h->last_pocs[0] = cur->poc;
1335 cur->mmco_reset = 1;
1336 } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1337 int loglevel = h->avctx->frame_num > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1338 av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1339 h->avctx->has_b_frames = out_of_order;
1340 }
1341
1342 pics = 0;
1343 while (h->delayed_pic[pics])
1344 pics++;
1345
1346 av_assert0(pics <= H264_MAX_DPB_FRAMES);
1347
1348 h->delayed_pic[pics++] = cur;
1349 if (cur->reference == 0)
1350 cur->reference = DELAYED_PIC_REF;
1351
1352 out = h->delayed_pic[0];
1353 out_idx = 0;
1354 for (i = 1; h->delayed_pic[i] &&
1355 !(h->delayed_pic[i]->f->flags & AV_FRAME_FLAG_KEY) &&
1356 !h->delayed_pic[i]->mmco_reset;
1357 i++)
1358 if (h->delayed_pic[i]->poc < out->poc) {
1359 out = h->delayed_pic[i];
1360 out_idx = i;
1361 }
1362 if (h->avctx->has_b_frames == 0 &&
1363 ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset))
1364 h->next_outputed_poc = INT_MIN;
1365 out_of_order = out->poc < h->next_outputed_poc;
1366
1367 if (out_of_order || pics > h->avctx->has_b_frames) {
1368 out->reference &= ~DELAYED_PIC_REF;
1369 for (i = out_idx; h->delayed_pic[i]; i++)
1370 h->delayed_pic[i] = h->delayed_pic[i + 1];
1371 }
1372 if (!out_of_order && pics > h->avctx->has_b_frames) {
1373 h->next_output_pic = out;
1374 if (out_idx == 0 && h->delayed_pic[0] && ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset)) {
1375 h->next_outputed_poc = INT_MIN;
1376 } else
1377 h->next_outputed_poc = out->poc;
1378
1379 // We have reached an recovery point and all frames after it in
1380 // display order are "recovered".
1381 h->frame_recovered |= out->recovered;
1382
1383 out->recovered |= h->frame_recovered & FRAME_RECOVERED_SEI;
1384
1385 if (!out->recovered) {
1386 if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1387 !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1388 h->next_output_pic = NULL;
1389 } else {
1390 out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1391 }
1392 }
1393 } else {
1394 av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1395 }
1396
1397 return 0;
1398}
1399
1400/* This function is called right after decoding the slice header for a first
1401 * slice in a field (or a frame). It decides whether we are decoding a new frame
1402 * or a second field in a pair and does the necessary setup.
1403 */
1404static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1405 const H2645NAL *nal, int first_slice)
1406{
1407 int i;
1408 const SPS *sps;
1409
1410 int last_pic_structure, last_pic_droppable, ret;
1411
1412 ret = h264_init_ps(h, sl, first_slice);
1413 if (ret < 0)
1414 return ret;
1415
1416 sps = h->ps.sps;
1417
1418 if (sps->bitstream_restriction_flag &&
1419 h->avctx->has_b_frames < sps->num_reorder_frames) {
1420 h->avctx->has_b_frames = sps->num_reorder_frames;
1421 }
1422
1423 last_pic_droppable = h->droppable;
1424 last_pic_structure = h->picture_structure;
1425 h->droppable = (nal->ref_idc == 0);
1426 h->picture_structure = sl->picture_structure;
1427
1428 h->poc.frame_num = sl->frame_num;
1429 h->poc.poc_lsb = sl->poc_lsb;
1430 h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1431 h->poc.delta_poc[0] = sl->delta_poc[0];
1432 h->poc.delta_poc[1] = sl->delta_poc[1];
1433
1434 if (nal->type == H264_NAL_IDR_SLICE)
1435 h->poc_offset = sl->idr_pic_id;
1436 else if (h->picture_intra_only)
1437 h->poc_offset = 0;
1438
1439 /* Shorten frame num gaps so we don't have to allocate reference
1440 * frames just to throw them away */
1441 if (h->poc.frame_num != h->poc.prev_frame_num) {
1442 int unwrap_prev_frame_num = h->poc.prev_frame_num;
1443 int max_frame_num = 1 << sps->log2_max_frame_num;
1444
1445 if (unwrap_prev_frame_num > h->poc.frame_num)
1446 unwrap_prev_frame_num -= max_frame_num;
1447
1448 if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1449 unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1450 if (unwrap_prev_frame_num < 0)
1451 unwrap_prev_frame_num += max_frame_num;
1452
1453 h->poc.prev_frame_num = unwrap_prev_frame_num;
1454 }
1455 }
1456
1457 /* See if we have a decoded first field looking for a pair...
1458 * Here, we're using that to see if we should mark previously
1459 * decode frames as "finished".
1460 * We have to do that before the "dummy" in-between frame allocation,
1461 * since that can modify h->cur_pic_ptr. */
1462 if (h->first_field) {
1463 int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1464 av_assert0(h->cur_pic_ptr);
1465 av_assert0(h->cur_pic_ptr->f->buf[0]);
1466 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1467
1468 /* Mark old field/frame as completed */
1469 if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1470 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1471 }
1472
1473 /* figure out if we have a complementary field pair */
1474 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1475 /* Previous field is unmatched. Don't display it, but let it
1476 * remain for reference if marked as such. */
1477 if (last_pic_structure != PICT_FRAME) {
1478 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1479 last_pic_structure == PICT_TOP_FIELD);
1480 }
1481 } else {
1482 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1483 /* This and previous field were reference, but had
1484 * different frame_nums. Consider this field first in
1485 * pair. Throw away previous field except for reference
1486 * purposes. */
1487 if (last_pic_structure != PICT_FRAME) {
1488 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1489 last_pic_structure == PICT_TOP_FIELD);
1490 }
1491 } else {
1492 /* Second field in complementary pair */
1493 if (!((last_pic_structure == PICT_TOP_FIELD &&
1494 h->picture_structure == PICT_BOTTOM_FIELD) ||
1495 (last_pic_structure == PICT_BOTTOM_FIELD &&
1496 h->picture_structure == PICT_TOP_FIELD))) {
1497 av_log(h->avctx, AV_LOG_ERROR,
1498 "Invalid field mode combination %d/%d\n",
1499 last_pic_structure, h->picture_structure);
1500 h->picture_structure = last_pic_structure;
1501 h->droppable = last_pic_droppable;
1502 return AVERROR_INVALIDDATA;
1503 } else if (last_pic_droppable != h->droppable) {
1504 avpriv_request_sample(h->avctx,
1505 "Found reference and non-reference fields in the same frame, which");
1506 h->picture_structure = last_pic_structure;
1507 h->droppable = last_pic_droppable;
1508 return AVERROR_PATCHWELCOME;
1509 }
1510 }
1511 }
1512 }
1513
1514 while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1515 h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1516 const H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1517 av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1518 h->poc.frame_num, h->poc.prev_frame_num);
1519 if (!sps->gaps_in_frame_num_allowed_flag)
1520 for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1521 h->last_pocs[i] = INT_MIN;
1522 ret = h264_frame_start(h);
1523 if (ret < 0) {
1524 h->first_field = 0;
1525 return ret;
1526 }
1527
1528 h->poc.prev_frame_num++;
1529 h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num;
1530 h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1531 h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1532 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1533 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1534
1535 h->explicit_ref_marking = 0;
1536 ret = ff_h264_execute_ref_pic_marking(h);
1537 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1538 return ret;
1539 /* Error concealment: If a ref is missing, copy the previous ref
1540 * in its place.
1541 * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1542 * many assumptions about there being no actual duplicates.
1543 * FIXME: This does not copy padding for out-of-frame motion
1544 * vectors. Given we are concealing a lost frame, this probably
1545 * is not noticeable by comparison, but it should be fixed. */
1546 if (h->short_ref_count) {
1547 int c[4] = {
1548 1<<(h->ps.sps->bit_depth_luma-1),
1549 1<<(h->ps.sps->bit_depth_chroma-1),
1550 1<<(h->ps.sps->bit_depth_chroma-1),
1551 -1
1552 };
1553
1554 if (prev &&
1555 h->short_ref[0]->f->width == prev->f->width &&
1556 h->short_ref[0]->f->height == prev->f->height &&
1557 h->short_ref[0]->f->format == prev->f->format) {
1558 ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1559 if (prev->field_picture)
1560 ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1561 ff_thread_release_ext_buffer(&h->short_ref[0]->tf);
1562 h->short_ref[0]->tf.f = h->short_ref[0]->f;
1563 ret = ff_thread_ref_frame(&h->short_ref[0]->tf, &prev->tf);
1564 if (ret < 0)
1565 return ret;
1566 h->short_ref[0]->poc = prev->poc + 2U;
1567 h->short_ref[0]->gray = prev->gray;
1568 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 0);
1569 if (h->short_ref[0]->field_picture)
1570 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 1);
1571 } else if (!h->frame_recovered) {
1572 if (!h->avctx->hwaccel)
1573 color_frame(h->short_ref[0]->f, c);
1574 h->short_ref[0]->gray = 1;
1575 }
1576 h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1577 }
1578 }
1579
1580 /* See if we have a decoded first field looking for a pair...
1581 * We're using that to see whether to continue decoding in that
1582 * frame, or to allocate a new one. */
1583 if (h->first_field) {
1584 av_assert0(h->cur_pic_ptr);
1585 av_assert0(h->cur_pic_ptr->f->buf[0]);
1586 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1587
1588 /* figure out if we have a complementary field pair */
1589 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1590 /* Previous field is unmatched. Don't display it, but let it
1591 * remain for reference if marked as such. */
1592 h->missing_fields ++;
1593 h->cur_pic_ptr = NULL;
1594 h->first_field = FIELD_PICTURE(h);
1595 } else {
1596 h->missing_fields = 0;
1597 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1598 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1599 h->picture_structure==PICT_BOTTOM_FIELD);
1600 /* This and the previous field had different frame_nums.
1601 * Consider this field first in pair. Throw away previous
1602 * one except for reference purposes. */
1603 h->first_field = 1;
1604 h->cur_pic_ptr = NULL;
1605 } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1606 /* This frame was already output, we cannot draw into it
1607 * anymore.
1608 */
1609 h->first_field = 1;
1610 h->cur_pic_ptr = NULL;
1611 } else {
1612 /* Second field in complementary pair */
1613 h->first_field = 0;
1614 }
1615 }
1616 } else {
1617 /* Frame or first field in a potentially complementary pair */
1618 h->first_field = FIELD_PICTURE(h);
1619 }
1620
1621 if (!FIELD_PICTURE(h) || h->first_field) {
1622 if (h264_frame_start(h) < 0) {
1623 h->first_field = 0;
1624 return AVERROR_INVALIDDATA;
1625 }
1626 } else {
1627 int field = h->picture_structure == PICT_BOTTOM_FIELD;
1628 release_unused_pictures(h, 0);
1629 h->cur_pic_ptr->tf.owner[field] = h->avctx;
1630 }
1631 /* Some macroblocks can be accessed before they're available in case
1632 * of lost slices, MBAFF or threading. */
1633 if (FIELD_PICTURE(h)) {
1634 for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1635 memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1636 } else {
1637 memset(h->slice_table, -1,
1638 (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1639 }
1640
1641 ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1642 h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1643 if (ret < 0)
1644 return ret;
1645
1646 memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1647 h->nb_mmco = sl->nb_mmco;
1648 h->explicit_ref_marking = sl->explicit_ref_marking;
1649
1650 h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1651
1652 if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1653 const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1654
1655 if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1656 h->valid_recovery_point = 1;
1657
1658 if ( h->recovery_frame < 0
1659 || av_zero_extend(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1660 h->recovery_frame = av_zero_extend(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1661
1662 if (!h->valid_recovery_point)
1663 h->recovery_frame = h->poc.frame_num;
1664 }
1665 }
1666
1667 h->cur_pic_ptr->f->flags |= AV_FRAME_FLAG_KEY * !!(nal->type == H264_NAL_IDR_SLICE);
1668
1669 if (nal->type == H264_NAL_IDR_SLICE) {
1670 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_IDR;
1671 // If we have an IDR, all frames after it in decoded order are
1672 // "recovered".
1673 h->frame_recovered |= FRAME_RECOVERED_IDR;
1674 }
1675
1676 if (h->recovery_frame == h->poc.frame_num && nal->ref_idc) {
1677 h->recovery_frame = -1;
1678 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_SEI;
1679 }
1680
1681#if 1
1682 h->cur_pic_ptr->recovered |= h->frame_recovered;
1683#else
1684 h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1685#endif
1686
1687 /* Set the frame properties/side data. Only done for the second field in
1688 * field coded frames, since some SEI information is present for each field
1689 * and is merged by the SEI parsing code. */
1690 if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1691 ret = h264_export_frame_props(h);
1692 if (ret < 0)
1693 return ret;
1694
1695 ret = h264_select_output_frame(h);
1696 if (ret < 0)
1697 return ret;
1698 }
1699
1700 return 0;
1701}
1702
1703static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1704 const H2645NAL *nal)
1705{
1706 const SPS *sps;
1707 const PPS *pps;
1708 int ret;
1709 unsigned int slice_type, tmp, i;
1710 int field_pic_flag, bottom_field_flag;
1711 int first_slice = sl == h->slice_ctx && !h->current_slice;
1712 int picture_structure;
1713
1714 if (first_slice)
1715 av_assert0(!h->setup_finished);
1716
1717 sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1718
1719 slice_type = get_ue_golomb_31(&sl->gb);
1720 if (slice_type > 9) {
1721 av_log(h->avctx, AV_LOG_ERROR,
1722 "slice type %d too large at %d\n",
1723 slice_type, sl->first_mb_addr);
1724 return AVERROR_INVALIDDATA;
1725 }
1726 if (slice_type > 4) {
1727 slice_type -= 5;
1728 sl->slice_type_fixed = 1;
1729 } else
1730 sl->slice_type_fixed = 0;
1731
1732 slice_type = ff_h264_golomb_to_pict_type[slice_type];
1733 sl->slice_type = slice_type;
1734 sl->slice_type_nos = slice_type & 3;
1735
1736 if (nal->type == H264_NAL_IDR_SLICE &&
1737 sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1738 av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1739 return AVERROR_INVALIDDATA;
1740 }
1741
1742 sl->pps_id = get_ue_golomb(&sl->gb);
1743 if (sl->pps_id >= MAX_PPS_COUNT) {
1744 av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1745 return AVERROR_INVALIDDATA;
1746 }
1747 if (!h->ps.pps_list[sl->pps_id]) {
1748 av_log(h->avctx, AV_LOG_ERROR,
1749 "non-existing PPS %u referenced\n",
1750 sl->pps_id);
1751 return AVERROR_INVALIDDATA;
1752 }
1753 pps = h->ps.pps_list[sl->pps_id];
1754 sps = pps->sps;
1755
1756 sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1757 if (!first_slice) {
1758 if (h->poc.frame_num != sl->frame_num) {
1759 av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1760 h->poc.frame_num, sl->frame_num);
1761 return AVERROR_INVALIDDATA;
1762 }
1763 }
1764
1765 sl->mb_mbaff = 0;
1766
1767 if (sps->frame_mbs_only_flag) {
1768 picture_structure = PICT_FRAME;
1769 } else {
1770 if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1771 av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1772 return -1;
1773 }
1774 field_pic_flag = get_bits1(&sl->gb);
1775 if (field_pic_flag) {
1776 bottom_field_flag = get_bits1(&sl->gb);
1777 picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1778 } else {
1779 picture_structure = PICT_FRAME;
1780 }
1781 }
1782 sl->picture_structure = picture_structure;
1783 sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1784
1785 if (picture_structure == PICT_FRAME) {
1786 sl->curr_pic_num = sl->frame_num;
1787 sl->max_pic_num = 1 << sps->log2_max_frame_num;
1788 } else {
1789 sl->curr_pic_num = 2 * sl->frame_num + 1;
1790 sl->max_pic_num = 1 << (sps->log2_max_frame_num + 1);
1791 }
1792
1793 if (nal->type == H264_NAL_IDR_SLICE) {
1794 unsigned idr_pic_id = get_ue_golomb_long(&sl->gb);
1795 if (idr_pic_id < 65536) {
1796 sl->idr_pic_id = idr_pic_id;
1797 } else
1798 av_log(h->avctx, AV_LOG_WARNING, "idr_pic_id is invalid\n");
1799 }
1800
1801 sl->poc_lsb = 0;
1802 sl->delta_poc_bottom = 0;
1803 if (sps->poc_type == 0) {
1804 sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1805
1806 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1807 sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1808 }
1809
1810 sl->delta_poc[0] = sl->delta_poc[1] = 0;
1811 if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1812 sl->delta_poc[0] = get_se_golomb(&sl->gb);
1813
1814 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1815 sl->delta_poc[1] = get_se_golomb(&sl->gb);
1816 }
1817
1818 sl->redundant_pic_count = 0;
1819 if (pps->redundant_pic_cnt_present)
1820 sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1821
1822 if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1823 sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1824
1825 ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1826 &sl->gb, pps, sl->slice_type_nos,
1827 picture_structure, h->avctx);
1828 if (ret < 0)
1829 return ret;
1830
1831 if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1832 ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1833 if (ret < 0) {
1834 sl->ref_count[1] = sl->ref_count[0] = 0;
1835 return ret;
1836 }
1837 }
1838
1839 sl->pwt.use_weight = 0;
1840 for (i = 0; i < 2; i++) {
1841 sl->pwt.luma_weight_flag[i] = 0;
1842 sl->pwt.chroma_weight_flag[i] = 0;
1843 }
1844 if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1845 (pps->weighted_bipred_idc == 1 &&
1846 sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1847 ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1848 sl->slice_type_nos, &sl->pwt,
1849 picture_structure, h->avctx);
1850 if (ret < 0)
1851 return ret;
1852 }
1853
1854 sl->explicit_ref_marking = 0;
1855 if (nal->ref_idc) {
1856 ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1857 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1858 return AVERROR_INVALIDDATA;
1859 }
1860
1861 if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1862 tmp = get_ue_golomb_31(&sl->gb);
1863 if (tmp > 2) {
1864 av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1865 return AVERROR_INVALIDDATA;
1866 }
1867 sl->cabac_init_idc = tmp;
1868 }
1869
1870 sl->last_qscale_diff = 0;
1871 tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1872 if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1873 av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1874 return AVERROR_INVALIDDATA;
1875 }
1876 sl->qscale = tmp;
1877 sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1878 sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1879 // FIXME qscale / qp ... stuff
1880 if (sl->slice_type == AV_PICTURE_TYPE_SP)
1881 get_bits1(&sl->gb); /* sp_for_switch_flag */
1882 if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1883 sl->slice_type == AV_PICTURE_TYPE_SI)
1884 get_se_golomb(&sl->gb); /* slice_qs_delta */
1885
1886 sl->deblocking_filter = 1;
1887 sl->slice_alpha_c0_offset = 0;
1888 sl->slice_beta_offset = 0;
1889 if (pps->deblocking_filter_parameters_present) {
1890 tmp = get_ue_golomb_31(&sl->gb);
1891 if (tmp > 2) {
1892 av_log(h->avctx, AV_LOG_ERROR,
1893 "deblocking_filter_idc %u out of range\n", tmp);
1894 return AVERROR_INVALIDDATA;
1895 }
1896 sl->deblocking_filter = tmp;
1897 if (sl->deblocking_filter < 2)
1898 sl->deblocking_filter ^= 1; // 1<->0
1899
1900 if (sl->deblocking_filter) {
1901 int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1902 int slice_beta_offset_div2 = get_se_golomb(&sl->gb);
1903 if (slice_alpha_c0_offset_div2 > 6 ||
1904 slice_alpha_c0_offset_div2 < -6 ||
1905 slice_beta_offset_div2 > 6 ||
1906 slice_beta_offset_div2 < -6) {
1907 av_log(h->avctx, AV_LOG_ERROR,
1908 "deblocking filter parameters %d %d out of range\n",
1909 slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1910 return AVERROR_INVALIDDATA;
1911 }
1912 sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1913 sl->slice_beta_offset = slice_beta_offset_div2 * 2;
1914 }
1915 }
1916
1917 return 0;
1918}
1919
1920/* do all the per-slice initialization needed before we can start decoding the
1921 * actual MBs */
1922static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1923 const H2645NAL *nal)
1924{
1925 int i, j, ret = 0;
1926
1927 if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1928 av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1929 return AVERROR_INVALIDDATA;
1930 }
1931
1932 av_assert1(h->mb_num == h->mb_width * h->mb_height);
1933 if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1934 sl->first_mb_addr >= h->mb_num) {
1935 av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1936 return AVERROR_INVALIDDATA;
1937 }
1938 sl->resync_mb_x = sl->mb_x = sl->first_mb_addr % h->mb_width;
1939 sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1940 FIELD_OR_MBAFF_PICTURE(h);
1941 if (h->picture_structure == PICT_BOTTOM_FIELD)
1942 sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1943 av_assert1(sl->mb_y < h->mb_height);
1944
1945 ret = ff_h264_build_ref_list(h, sl);
1946 if (ret < 0)
1947 return ret;
1948
1949 if (h->ps.pps->weighted_bipred_idc == 2 &&
1950 sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1951 implicit_weight_table(h, sl, -1);
1952 if (FRAME_MBAFF(h)) {
1953 implicit_weight_table(h, sl, 0);
1954 implicit_weight_table(h, sl, 1);
1955 }
1956 }
1957
1958 if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1959 ff_h264_direct_dist_scale_factor(h, sl);
1960 ff_h264_direct_ref_list_init(h, sl);
1961
1962 if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1963 (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1964 h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1965 (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1966 sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1967 (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
1968 sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1969 (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1970 nal->ref_idc == 0))
1971 sl->deblocking_filter = 0;
1972
1973 if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
1974 if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
1975 /* Cheat slightly for speed:
1976 * Do not bother to deblock across slices. */
1977 sl->deblocking_filter = 2;
1978 } else {
1979 h->postpone_filter = 1;
1980 }
1981 }
1982 sl->qp_thresh = 15 -
1983 FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
1984 FFMAX3(0,
1985 h->ps.pps->chroma_qp_index_offset[0],
1986 h->ps.pps->chroma_qp_index_offset[1]) +
1987 6 * (h->ps.sps->bit_depth_luma - 8);
1988
1989 // slice_table is uint16_t initialized to 0xFFFF as a sentinel.
1990 if (h->current_slice >= 0xFFFE) {
1991 av_log(h->avctx, AV_LOG_ERROR, "Too many slices (%d)\n", h->current_slice + 1);
1992 return AVERROR_PATCHWELCOME;
1993 }
1994
1995 sl->slice_num = ++h->current_slice;
1996
1997 if (sl->slice_num)
1998 h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
1999 if ( h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2000 && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2001 && sl->slice_num >= MAX_SLICES) {
2002 //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2003 av_log(h->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", sl->slice_num, MAX_SLICES);
2004 }
2005
2006 for (j = 0; j < 2; j++) {
2007 int id_list[16];
2008 int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2009 for (i = 0; i < 16; i++) {
2010 id_list[i] = 60;
2011 if (j < sl->list_count && i < sl->ref_count[j] &&
2012 sl->ref_list[j][i].parent->f->buf[0]) {
2013 int k;
2014 const AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2015 for (k = 0; k < h->short_ref_count; k++)
2016 if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2017 id_list[i] = k;
2018 break;
2019 }
2020 for (k = 0; k < h->long_ref_count; k++)
2021 if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2022 id_list[i] = h->short_ref_count + k;
2023 break;
2024 }
2025 }
2026 }
2027
2028 ref2frm[0] =
2029 ref2frm[1] = -1;
2030 for (i = 0; i < 16; i++)
2031 ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2032 ref2frm[18 + 0] =
2033 ref2frm[18 + 1] = -1;
2034 for (i = 16; i < 48; i++)
2035 ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2036 (sl->ref_list[j][i].reference & 3);
2037 }
2038
2039 if (sl->slice_type_nos == AV_PICTURE_TYPE_I) {
2040 h->cur_pic_ptr->gray = 0;
2041 h->non_gray = 1;
2042 } else {
2043 int gray = 0;
2044 for (j = 0; j < sl->list_count; j++) {
2045 for (i = 0; i < sl->ref_count[j]; i++) {
2046 gray |= sl->ref_list[j][i].parent->gray;
2047 }
2048 }
2049 h->cur_pic_ptr->gray = gray;
2050 }
2051
2052 if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2053 av_log(h->avctx, AV_LOG_DEBUG,
2054 "slice:%d %c mb:%d %c%s%s frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
2055 sl->slice_num,
2056 (h->picture_structure == PICT_FRAME ? 'F' : h->picture_structure == PICT_TOP_FIELD ? 'T' : 'B'),
2057 sl->mb_y * h->mb_width + sl->mb_x,
2058 av_get_picture_type_char(sl->slice_type),
2059 sl->slice_type_fixed ? " fix" : "",
2060 nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2061 h->poc.frame_num,
2062 h->cur_pic_ptr->field_poc[0],
2063 h->cur_pic_ptr->field_poc[1],
2064 sl->ref_count[0], sl->ref_count[1],
2065 sl->qscale,
2066 sl->deblocking_filter,
2067 sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2068 sl->pwt.use_weight,
2069 sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2070 sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2071 }
2072
2073 return 0;
2074}
2075
2076int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2077{
2078 H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2079 int first_slice = sl == h->slice_ctx && !h->current_slice;
2080 int ret;
2081
2082 sl->gb = nal->gb;
2083
2084 ret = h264_slice_header_parse(h, sl, nal);
2085 if (ret < 0)
2086 return ret;
2087
2088 // discard redundant pictures
2089 if (sl->redundant_pic_count > 0) {
2090 sl->ref_count[0] = sl->ref_count[1] = 0;
2091 return 0;
2092 }
2093
2094 if (sl->first_mb_addr == 0 || !h->current_slice) {
2095 if (h->setup_finished) {
2096 av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2097 return AVERROR_INVALIDDATA;
2098 }
2099 }
2100
2101 if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2102 if (h->current_slice) {
2103 // this slice starts a new field
2104 // first decode any pending queued slices
2105 if (h->nb_slice_ctx_queued) {
2106 H264SliceContext tmp_ctx;
2107
2108 ret = ff_h264_execute_decode_slices(h);
2109 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2110 return ret;
2111
2112 memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2113 memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2114 memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2115 sl = h->slice_ctx;
2116 }
2117
2118 if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2119 ret = ff_h264_field_end(h, h->slice_ctx, 1);
2120 if (ret < 0)
2121 return ret;
2122 } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type == H264_NAL_IDR_SLICE) {
2123 av_log(h->avctx, AV_LOG_WARNING, "Broken frame packetizing\n");
2124 ret = ff_h264_field_end(h, h->slice_ctx, 1);
2125 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2126 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2127 h->cur_pic_ptr = NULL;
2128 if (ret < 0)
2129 return ret;
2130 } else
2131 return AVERROR_INVALIDDATA;
2132 }
2133
2134 if (!h->first_field) {
2135 if (h->cur_pic_ptr && !h->droppable) {
2136 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2137 h->picture_structure == PICT_BOTTOM_FIELD);
2138 }
2139 h->cur_pic_ptr = NULL;
2140 }
2141 }
2142
2143 if (!h->current_slice)
2144 av_assert0(sl == h->slice_ctx);
2145
2146 if (h->current_slice == 0 && !h->first_field) {
2147 if (
2148 (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2149 (h->avctx->skip_frame >= AVDISCARD_BIDIR && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2150 (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2151 (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2152 h->avctx->skip_frame >= AVDISCARD_ALL) {
2153 return 0;
2154 }
2155 }
2156
2157 if (!first_slice) {
2158 const PPS *pps = h->ps.pps_list[sl->pps_id];
2159
2160 if (h->ps.pps->sps_id != pps->sps_id ||
2161 h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2162 (h->setup_finished && h->ps.pps != pps)*/) {
2163 av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2164 return AVERROR_INVALIDDATA;
2165 }
2166 if (h->ps.sps != pps->sps) {
2167 av_log(h->avctx, AV_LOG_ERROR,
2168 "SPS changed in the middle of the frame\n");
2169 return AVERROR_INVALIDDATA;
2170 }
2171 }
2172
2173 if (h->current_slice == 0) {
2174 ret = h264_field_start(h, sl, nal, first_slice);
2175 if (ret < 0)
2176 return ret;
2177 } else {
2178 if (h->picture_structure != sl->picture_structure ||
2179 h->droppable != (nal->ref_idc == 0)) {
2180 av_log(h->avctx, AV_LOG_ERROR,
2181 "Changing field mode (%d -> %d) between slices is not allowed\n",
2182 h->picture_structure, sl->picture_structure);
2183 return AVERROR_INVALIDDATA;
2184 } else if (!h->cur_pic_ptr) {
2185 av_log(h->avctx, AV_LOG_ERROR,
2186 "unset cur_pic_ptr on slice %d\n",
2187 h->current_slice + 1);
2188 return AVERROR_INVALIDDATA;
2189 }
2190 }
2191
2192 ret = h264_slice_init(h, sl, nal);
2193 if (ret < 0)
2194 return ret;
2195
2196 h->nb_slice_ctx_queued++;
2197
2198 return 0;
2199}
2200
2201int ff_h264_get_slice_type(const H264SliceContext *sl)
2202{
2203 switch (sl->slice_type) {
2204 case AV_PICTURE_TYPE_P:
2205 return 0;
2206 case AV_PICTURE_TYPE_B:
2207 return 1;
2208 case AV_PICTURE_TYPE_I:
2209 return 2;
2210 case AV_PICTURE_TYPE_SP:
2211 return 3;
2212 case AV_PICTURE_TYPE_SI:
2213 return 4;
2214 default:
2215 return AVERROR_INVALIDDATA;
2216 }
2217}
2218
2219static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2220 H264SliceContext *sl,
2221 int mb_type, int top_xy,
2222 const int left_xy[LEFT_MBS],
2223 int top_type,
2224 const int left_type[LEFT_MBS],
2225 int mb_xy, int list)
2226{
2227 int b_stride = h->b_stride;
2228 int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2229 int8_t *ref_cache = &sl->ref_cache[list][scan8[0]];
2230 if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2231 if (USES_LIST(top_type, list)) {
2232 const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
2233 const int b8_xy = 4 * top_xy + 2;
2234 const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2235 AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2236 ref_cache[0 - 1 * 8] =
2237 ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2238 ref_cache[2 - 1 * 8] =
2239 ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2240 } else {
2241 AV_ZERO128(mv_dst - 1 * 8);
2242 AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2243 }
2244
2245 if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2246 if (USES_LIST(left_type[LTOP], list)) {
2247 const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
2248 const int b8_xy = 4 * left_xy[LTOP] + 1;
2249 const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2250 AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2251 AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2252 AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2253 AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2254 ref_cache[-1 + 0] =
2255 ref_cache[-1 + 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2256 ref_cache[-1 + 16] =
2257 ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2258 } else {
2259 AV_ZERO32(mv_dst - 1 + 0);
2260 AV_ZERO32(mv_dst - 1 + 8);
2261 AV_ZERO32(mv_dst - 1 + 16);
2262 AV_ZERO32(mv_dst - 1 + 24);
2263 ref_cache[-1 + 0] =
2264 ref_cache[-1 + 8] =
2265 ref_cache[-1 + 16] =
2266 ref_cache[-1 + 24] = LIST_NOT_USED;
2267 }
2268 }
2269 }
2270
2271 if (!USES_LIST(mb_type, list)) {
2272 fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2273 AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2274 AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2275 AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2276 AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2277 return;
2278 }
2279
2280 {
2281 const int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2282 const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2283 uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2284 uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2285 AV_WN32A(&ref_cache[0 * 8], ref01);
2286 AV_WN32A(&ref_cache[1 * 8], ref01);
2287 AV_WN32A(&ref_cache[2 * 8], ref23);
2288 AV_WN32A(&ref_cache[3 * 8], ref23);
2289 }
2290
2291 {
2292 int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2293 AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2294 AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2295 AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2296 AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2297 }
2298}
2299
2300/**
2301 * @return non zero if the loop filter can be skipped
2302 */
2303static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2304{
2305 const int mb_xy = sl->mb_xy;
2306 int top_xy, left_xy[LEFT_MBS];
2307 int top_type, left_type[LEFT_MBS];
2308 const uint8_t *nnz;
2309 uint8_t *nnz_cache;
2310
2311 top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2312
2313 left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2314 if (FRAME_MBAFF(h)) {
2315 const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2316 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2317 if (sl->mb_y & 1) {
2318 if (left_mb_field_flag != curr_mb_field_flag)
2319 left_xy[LTOP] -= h->mb_stride;
2320 } else {
2321 if (curr_mb_field_flag)
2322 top_xy += h->mb_stride &
2323 (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2324 if (left_mb_field_flag != curr_mb_field_flag)
2325 left_xy[LBOT] += h->mb_stride;
2326 }
2327 }
2328
2329 sl->top_mb_xy = top_xy;
2330 sl->left_mb_xy[LTOP] = left_xy[LTOP];
2331 sl->left_mb_xy[LBOT] = left_xy[LBOT];
2332 {
2333 /* For sufficiently low qp, filtering wouldn't do anything.
2334 * This is a conservative estimate: could also check beta_offset
2335 * and more accurate chroma_qp. */
2336 int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2337 int qp = h->cur_pic.qscale_table[mb_xy];
2338 if (qp <= qp_thresh &&
2339 (left_xy[LTOP] < 0 ||
2340 ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2341 (top_xy < 0 ||
2342 ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2343 if (!FRAME_MBAFF(h))
2344 return 1;
2345 if ((left_xy[LTOP] < 0 ||
2346 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2347 (top_xy < h->mb_stride ||
2348 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2349 return 1;
2350 }
2351 }
2352
2353 top_type = h->cur_pic.mb_type[top_xy];
2354 left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2355 left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2356 if (sl->deblocking_filter == 2) {
2357 if (h->slice_table[top_xy] != sl->slice_num)
2358 top_type = 0;
2359 if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2360 left_type[LTOP] = left_type[LBOT] = 0;
2361 } else {
2362 if (h->slice_table[top_xy] == 0xFFFF)
2363 top_type = 0;
2364 if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2365 left_type[LTOP] = left_type[LBOT] = 0;
2366 }
2367 sl->top_type = top_type;
2368 sl->left_type[LTOP] = left_type[LTOP];
2369 sl->left_type[LBOT] = left_type[LBOT];
2370
2371 if (IS_INTRA(mb_type))
2372 return 0;
2373
2374 fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2375 top_type, left_type, mb_xy, 0);
2376 if (sl->list_count == 2)
2377 fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2378 top_type, left_type, mb_xy, 1);
2379
2380 nnz = h->non_zero_count[mb_xy];
2381 nnz_cache = sl->non_zero_count_cache;
2382 AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2383 AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2384 AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2385 AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2386 sl->cbp = h->cbp_table[mb_xy];
2387
2388 if (top_type) {
2389 nnz = h->non_zero_count[top_xy];
2390 AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2391 }
2392
2393 if (left_type[LTOP]) {
2394 nnz = h->non_zero_count[left_xy[LTOP]];
2395 nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2396 nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2397 nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2398 nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2399 }
2400
2401 /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2402 * from what the loop filter needs */
2403 if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2404 if (IS_8x8DCT(top_type)) {
2405 nnz_cache[4 + 8 * 0] =
2406 nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2407 nnz_cache[6 + 8 * 0] =
2408 nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2409 }
2410 if (IS_8x8DCT(left_type[LTOP])) {
2411 nnz_cache[3 + 8 * 1] =
2412 nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2413 }
2414 if (IS_8x8DCT(left_type[LBOT])) {
2415 nnz_cache[3 + 8 * 3] =
2416 nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2417 }
2418
2419 if (IS_8x8DCT(mb_type)) {
2420 nnz_cache[scan8[0]] =
2421 nnz_cache[scan8[1]] =
2422 nnz_cache[scan8[2]] =
2423 nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2424
2425 nnz_cache[scan8[0 + 4]] =
2426 nnz_cache[scan8[1 + 4]] =
2427 nnz_cache[scan8[2 + 4]] =
2428 nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2429
2430 nnz_cache[scan8[0 + 8]] =
2431 nnz_cache[scan8[1 + 8]] =
2432 nnz_cache[scan8[2 + 8]] =
2433 nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2434
2435 nnz_cache[scan8[0 + 12]] =
2436 nnz_cache[scan8[1 + 12]] =
2437 nnz_cache[scan8[2 + 12]] =
2438 nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2439 }
2440 }
2441
2442 return 0;
2443}
2444
2445static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2446{
2447 uint8_t *dest_y, *dest_cb, *dest_cr;
2448 int linesize, uvlinesize, mb_x, mb_y;
2449 const int end_mb_y = sl->mb_y + FRAME_MBAFF(h);
2450 const int old_slice_type = sl->slice_type;
2451 const int pixel_shift = h->pixel_shift;
2452 const int block_h = 16 >> h->chroma_y_shift;
2453
2454 if (h->postpone_filter)
2455 return;
2456
2457 if (sl->deblocking_filter) {
2458 for (mb_x = start_x; mb_x < end_x; mb_x++)
2459 for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2460 int mb_xy, mb_type;
2461 mb_xy = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2462 mb_type = h->cur_pic.mb_type[mb_xy];
2463
2464 if (FRAME_MBAFF(h))
2465 sl->mb_mbaff =
2466 sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2467
2468 sl->mb_x = mb_x;
2469 sl->mb_y = mb_y;
2470 dest_y = h->cur_pic.f->data[0] +
2471 ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2472 dest_cb = h->cur_pic.f->data[1] +
2473 (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2474 mb_y * sl->uvlinesize * block_h;
2475 dest_cr = h->cur_pic.f->data[2] +
2476 (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2477 mb_y * sl->uvlinesize * block_h;
2478 // FIXME simplify above
2479
2480 if (MB_FIELD(sl)) {
2481 linesize = sl->mb_linesize = sl->linesize * 2;
2482 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2483 if (mb_y & 1) { // FIXME move out of this function?
2484 dest_y -= sl->linesize * 15;
2485 dest_cb -= sl->uvlinesize * (block_h - 1);
2486 dest_cr -= sl->uvlinesize * (block_h - 1);
2487 }
2488 } else {
2489 linesize = sl->mb_linesize = sl->linesize;
2490 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2491 }
2492 backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2493 uvlinesize, 0);
2494 if (fill_filter_caches(h, sl, mb_type))
2495 continue;
2496 sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2497 sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2498
2499 if (FRAME_MBAFF(h)) {
2500 ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2501 linesize, uvlinesize);
2502 } else {
2503 ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2504 dest_cr, linesize, uvlinesize);
2505 }
2506 }
2507 }
2508 sl->slice_type = old_slice_type;
2509 sl->mb_x = end_x;
2510 sl->mb_y = end_mb_y - FRAME_MBAFF(h);
2511 sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2512 sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2513}
2514
2515static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2516{
2517 const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2518 int mb_type = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2519 h->cur_pic.mb_type[mb_xy - 1] :
2520 (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2521 h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2522 sl->mb_mbaff = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2523}
2524
2525/**
2526 * Draw edges and report progress for the last MB row.
2527 */
2528static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2529{
2530 int top = 16 * (sl->mb_y >> FIELD_PICTURE(h));
2531 int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
2532 int height = 16 << FRAME_MBAFF(h);
2533 int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2534
2535 if (sl->deblocking_filter) {
2536 if ((top + height) >= pic_height)
2537 height += deblock_border;
2538 top -= deblock_border;
2539 }
2540
2541 if (top >= pic_height || (top + height) < 0)
2542 return;
2543
2544 height = FFMIN(height, pic_height - top);
2545 if (top < 0) {
2546 height = top + height;
2547 top = 0;
2548 }
2549
2550 ff_h264_draw_horiz_band(h, sl, top, height);
2551
2552 if (h->droppable || h->er.error_occurred)
2553 return;
2554
2555 ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2556 h->picture_structure == PICT_BOTTOM_FIELD);
2557}
2558
2559static void er_add_slice(H264SliceContext *sl,
2560 int startx, int starty,
2561 int endx, int endy, int status)
2562{
2563 if (!sl->h264->enable_er)
2564 return;
2565
2566 if (CONFIG_ERROR_RESILIENCE) {
2567 ff_er_add_slice(sl->er, startx, starty, endx, endy, status);
2568 }
2569}
2570
2571static int decode_slice(struct AVCodecContext *avctx, void *arg)
2572{
2573 H264SliceContext *sl = arg;
2574 const H264Context *h = sl->h264;
2575 int lf_x_start = sl->mb_x;
2576 int orig_deblock = sl->deblocking_filter;
2577 int ret;
2578
2579 sl->linesize = h->cur_pic_ptr->f->linesize[0];
2580 sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2581
2582 ret = alloc_scratch_buffers(sl, sl->linesize);
2583 if (ret < 0)
2584 return ret;
2585
2586 sl->mb_skip_run = -1;
2587
2588 av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2589
2590 if (h->postpone_filter)
2591 sl->deblocking_filter = 0;
2592
2593 sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2594 (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2595
2596 if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && sl->er->error_status_table) {
2597 const int start_i = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2598 if (start_i) {
2599 int prev_status = sl->er->error_status_table[sl->er->mb_index2xy[start_i - 1]];
2600 prev_status &= ~ VP_START;
2601 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2602 sl->er->error_occurred = 1;
2603 }
2604 }
2605
2606 if (h->ps.pps->cabac) {
2607 /* realign */
2608 align_get_bits(&sl->gb);
2609
2610 /* init cabac */
2611 ret = ff_init_cabac_decoder(&sl->cabac,
2612 sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2613 (get_bits_left(&sl->gb) + 7) / 8);
2614 if (ret < 0)
2615 return ret;
2616
2617 ff_h264_init_cabac_states(h, sl);
2618
2619 for (;;) {
2620 int ret, eos;
2621 if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2622 av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2623 sl->next_slice_idx);
2624 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2625 sl->mb_y, ER_MB_ERROR);
2626 return AVERROR_INVALIDDATA;
2627 }
2628
2629 ret = ff_h264_decode_mb_cabac(h, sl);
2630
2631 if (ret >= 0)
2632 ff_h264_hl_decode_mb(h, sl);
2633
2634 // FIXME optimal? or let mb_decode decode 16x32 ?
2635 if (ret >= 0 && FRAME_MBAFF(h)) {
2636 sl->mb_y++;
2637
2638 ret = ff_h264_decode_mb_cabac(h, sl);
2639
2640 if (ret >= 0)
2641 ff_h264_hl_decode_mb(h, sl);
2642 sl->mb_y--;
2643 }
2644 eos = get_cabac_terminate(&sl->cabac);
2645
2646 if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2647 sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2648 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2649 sl->mb_y, ER_MB_END);
2650 if (sl->mb_x >= lf_x_start)
2651 loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2652 goto finish;
2653 }
2654 if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2655 av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %td\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2656 if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2657 av_log(h->avctx, AV_LOG_ERROR,
2658 "error while decoding MB %d %d, bytestream %td\n",
2659 sl->mb_x, sl->mb_y,
2660 sl->cabac.bytestream_end - sl->cabac.bytestream);
2661 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2662 sl->mb_y, ER_MB_ERROR);
2663 return AVERROR_INVALIDDATA;
2664 }
2665
2666 if (++sl->mb_x >= h->mb_width) {
2667 loop_filter(h, sl, lf_x_start, sl->mb_x);
2668 sl->mb_x = lf_x_start = 0;
2669 decode_finish_row(h, sl);
2670 ++sl->mb_y;
2671 if (FIELD_OR_MBAFF_PICTURE(h)) {
2672 ++sl->mb_y;
2673 if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2674 predict_field_decoding_flag(h, sl);
2675 }
2676 }
2677
2678 if (eos || sl->mb_y >= h->mb_height) {
2679 ff_tlog(h->avctx, "slice end %d %d\n",
2680 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2681 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2682 sl->mb_y, ER_MB_END);
2683 if (sl->mb_x > lf_x_start)
2684 loop_filter(h, sl, lf_x_start, sl->mb_x);
2685 goto finish;
2686 }
2687 }
2688 } else {
2689 for (;;) {
2690 int ret;
2691
2692 if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2693 av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2694 sl->next_slice_idx);
2695 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2696 sl->mb_y, ER_MB_ERROR);
2697 return AVERROR_INVALIDDATA;
2698 }
2699
2700 ret = ff_h264_decode_mb_cavlc(h, sl);
2701
2702 if (ret >= 0)
2703 ff_h264_hl_decode_mb(h, sl);
2704
2705 // FIXME optimal? or let mb_decode decode 16x32 ?
2706 if (ret >= 0 && FRAME_MBAFF(h)) {
2707 sl->mb_y++;
2708 ret = ff_h264_decode_mb_cavlc(h, sl);
2709
2710 if (ret >= 0)
2711 ff_h264_hl_decode_mb(h, sl);
2712 sl->mb_y--;
2713 }
2714
2715 if (ret < 0) {
2716 av_log(h->avctx, AV_LOG_ERROR,
2717 "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2718 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2719 sl->mb_y, ER_MB_ERROR);
2720 return ret;
2721 }
2722
2723 if (++sl->mb_x >= h->mb_width) {
2724 loop_filter(h, sl, lf_x_start, sl->mb_x);
2725 sl->mb_x = lf_x_start = 0;
2726 decode_finish_row(h, sl);
2727 ++sl->mb_y;
2728 if (FIELD_OR_MBAFF_PICTURE(h)) {
2729 ++sl->mb_y;
2730 if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2731 predict_field_decoding_flag(h, sl);
2732 }
2733 if (sl->mb_y >= h->mb_height) {
2734 ff_tlog(h->avctx, "slice end %d %d\n",
2735 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2736
2737 if ( get_bits_left(&sl->gb) == 0
2738 || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2739 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2740 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2741
2742 goto finish;
2743 } else {
2744 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2745 sl->mb_x, sl->mb_y, ER_MB_END);
2746
2747 return AVERROR_INVALIDDATA;
2748 }
2749 }
2750 }
2751
2752 if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2753 ff_tlog(h->avctx, "slice end %d %d\n",
2754 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2755
2756 if (get_bits_left(&sl->gb) == 0) {
2757 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2758 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2759 if (sl->mb_x > lf_x_start)
2760 loop_filter(h, sl, lf_x_start, sl->mb_x);
2761
2762 goto finish;
2763 } else {
2764 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2765 sl->mb_y, ER_MB_ERROR);
2766
2767 return AVERROR_INVALIDDATA;
2768 }
2769 }
2770 }
2771 }
2772
2773finish:
2774 sl->deblocking_filter = orig_deblock;
2775 return 0;
2776}
2777
2778/**
2779 * Call decode_slice() for each context.
2780 *
2781 * @param h h264 master context
2782 */
2783int ff_h264_execute_decode_slices(H264Context *h)
2784{
2785 AVCodecContext *const avctx = h->avctx;
2786 H264SliceContext *sl;
2787 int context_count = h->nb_slice_ctx_queued;
2788 int ret = 0;
2789 int i, j;
2790
2791 h->slice_ctx[0].next_slice_idx = INT_MAX;
2792
2793 if (h->avctx->hwaccel || context_count < 1)
2794 return 0;
2795
2796 av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2797
2798 if (context_count == 1) {
2799
2800 h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2801 h->postpone_filter = 0;
2802
2803 ret = decode_slice(avctx, &h->slice_ctx[0]);
2804 h->mb_y = h->slice_ctx[0].mb_y;
2805 if (ret < 0)
2806 goto finish;
2807 } else {
2808 av_assert0(context_count > 0);
2809 for (i = 0; i < context_count; i++) {
2810 int next_slice_idx = h->mb_width * h->mb_height;
2811 int slice_idx;
2812
2813 sl = &h->slice_ctx[i];
2814
2815 /* make sure none of those slices overlap */
2816 slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2817 for (j = 0; j < context_count; j++) {
2818 H264SliceContext *sl2 = &h->slice_ctx[j];
2819 int slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2820
2821 if (i == j || slice_idx2 < slice_idx)
2822 continue;
2823 next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2824 }
2825 sl->next_slice_idx = next_slice_idx;
2826 }
2827
2828 avctx->execute(avctx, decode_slice, h->slice_ctx,
2829 NULL, context_count, sizeof(h->slice_ctx[0]));
2830
2831 /* pull back stuff from slices to master context */
2832 sl = &h->slice_ctx[context_count - 1];
2833 h->mb_y = sl->mb_y;
2834
2835 if (h->postpone_filter) {
2836 h->postpone_filter = 0;
2837
2838 for (i = 0; i < context_count; i++) {
2839 int y_end, x_end;
2840
2841 sl = &h->slice_ctx[i];
2842 y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2843 x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2844
2845 for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2846 sl->mb_y = j;
2847 loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2848 j == y_end - 1 ? x_end : h->mb_width);
2849 }
2850 }
2851 }
2852 }
2853
2854finish:
2855 h->nb_slice_ctx_queued = 0;
2856 return ret;
2857}
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition dsp.h:87
out
static FILE * out
Definition api-movenc-test.c:55
finish
static void finish(void)
Definition api-movenc-test.c:374
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
av_assert1
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition avassert.h:58
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition avassert.h:42
avcodec.h
Libavcodec external API header.
FF_DEBUG_PICT_INFO
#define FF_DEBUG_PICT_INFO
Definition avcodec.h:1393
FF_THREAD_SLICE
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition avcodec.h:1591
FF_BUG_TRUNCATED
#define FF_BUG_TRUNCATED
Definition avcodec.h:1359
ff_init_cabac_decoder
int ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size)
Definition cabac.c:162
cabac.h
Context Adaptive Binary Arithmetic Coder.
cabac_functions.h
Context Adaptive Binary Arithmetic Coder inline functions.
get_cabac_terminate
static av_unused int get_cabac_terminate(CABACContext *c)
Definition cabac_functions.h:187
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
sps
static int FUNC sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
Definition cbs_h264_syntax_template.c:260
nal
static int FUNC nal(CodedBitstreamContext *ctx, RWContext *rw, LCEVCRawNAL *current, int nal_unit_type)
Definition cbs_lcevc_syntax_template.c:660
ss
#define ss(width, name, subs,...)
Definition cbs_vp9.c:202
av_clip_int8
#define av_clip_int8
Definition common.h:109
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition common.h:60
av_clip
#define av_clip
Definition common.h:100
av_zero_extend
#define av_zero_extend
Definition common.h:151
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition common.h:74
NULL
#define NULL
Definition coverity.c:32
int64_t
long long int64_t
Definition coverity.c:34
MAX_SLICES
#define MAX_SLICES
Definition d3d12va_hevc.c:33
ff_frame_new_side_data_from_buf
int ff_frame_new_side_data_from_buf(const AVCodecContext *avctx, AVFrame *frame, enum AVFrameSideDataType type, AVBufferRef **buf)
Similar to ff_frame_new_side_data, but using an existing buffer ref.
Definition decode.c:2222
ff_get_format
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition decode.c:1229
ff_hwaccel_frame_priv_alloc
int ff_hwaccel_frame_priv_alloc(AVCodecContext *avctx, void **hwaccel_picture_private)
Allocate a hwaccel frame private data if the provided avctx uses a hwaccel method that needs it.
Definition decode.c:2336
ff_frame_new_side_data
int ff_frame_new_side_data(const AVCodecContext *avctx, AVFrame *frame, enum AVFrameSideDataType type, size_t size, AVFrameSideData **psd)
Wrapper around av_frame_new_side_data, which rejects side data overridden by the demuxer.
Definition decode.c:2184
ff_set_sar
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition utils.c:106
FF_COMPLIANCE_STRICT
#define FF_COMPLIANCE_STRICT
Strictly conform to all the things in the spec no matter what consequences.
Definition defs.h:59
AV_EF_EXPLODE
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition defs.h:51
AV_EF_AGGRESSIVE
#define AV_EF_AGGRESSIVE
consider things that a sane encoder/muxer should not do as an error
Definition defs.h:56
frame
static AVFrame * frame
Definition demux_decode.c:54
pps
uint64_t pps
Definition dovi_rpuenc.c:36
atomic_init
#define atomic_init(obj, value)
Definition stdatomic.h:33
ff_er_add_slice
void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy, int status)
Add a slice.
Definition error_resilience.c:840
ff_er_frame_start
void ff_er_frame_start(ERContext *s)
Definition error_resilience.c:812
error_resilience.h
ER_MB_END
#define ER_MB_END
Definition error_resilience.h:37
ER_MV_END
#define ER_MV_END
Definition error_resilience.h:34
ER_AC_END
#define ER_AC_END
Definition error_resilience.h:32
ER_DC_END
#define ER_DC_END
Definition error_resilience.h:33
ER_MB_ERROR
#define ER_MB_ERROR
Definition error_resilience.h:36
fill_rectangle
static void fill_rectangle(int x, int y, int w, int h)
Definition ffplay.c:829
decode_slice
static int decode_slice(AVCodecContext *c, void *arg)
Definition ffv1dec.c:449
get_bits_left
static int get_bits_left(GetBitContext *gb)
Definition get_bits.h:688
get_bits1
static unsigned int get_bits1(GetBitContext *s)
Definition get_bits.h:391
align_get_bits
static const uint8_t * align_get_bits(GetBitContext *s)
Definition get_bits.h:560
get_bits_count
static int get_bits_count(const GetBitContext *s)
Definition get_bits.h:254
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition get_bits.h:337
golomb.h
exp golomb vlc stuff
get_se_golomb
static int get_se_golomb(GetBitContext *gb)
read signed exp golomb code.
Definition golomb.h:239
get_ue_golomb_31
static int get_ue_golomb_31(GetBitContext *gb)
read unsigned exp golomb code, constraint to a max of 31.
Definition golomb.h:120
get_ue_golomb
static int get_ue_golomb(GetBitContext *gb)
Read an unsigned Exp-Golomb code in the range 0 to 8190.
Definition golomb.h:53
get_ue_golomb_long
static unsigned get_ue_golomb_long(GetBitContext *gb)
Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.
Definition golomb.h:104
fail
#define fail
Definition test.h:479
AV_CODEC_FLAG2_FAST
#define AV_CODEC_FLAG2_FAST
Allow non spec compliant speedup tricks.
Definition avcodec.h:337
AV_CODEC_FLAG2_SHOW_ALL
#define AV_CODEC_FLAG2_SHOW_ALL
Show all frames before the first keyframe.
Definition avcodec.h:364
AV_GET_BUFFER_FLAG_REF
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition avcodec.h:415
AV_CODEC_FLAG_GRAY
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition avcodec.h:302
AV_CODEC_EXPORT_DATA_FILM_GRAIN
#define AV_CODEC_EXPORT_DATA_FILM_GRAIN
Decoding only.
Definition avcodec.h:404
AV_CODEC_FLAG_OUTPUT_CORRUPT
#define AV_CODEC_FLAG_OUTPUT_CORRUPT
Output even those frames that might be corrupted.
Definition avcodec.h:221
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition codec_id.h:77
AVDISCARD_ALL
@ AVDISCARD_ALL
discard all
Definition defs.h:232
AVDISCARD_NONKEY
@ AVDISCARD_NONKEY
discard all frames except keyframes
Definition defs.h:231
AVDISCARD_BIDIR
@ AVDISCARD_BIDIR
discard all bidirectional frames
Definition defs.h:229
AVDISCARD_NONINTRA
@ AVDISCARD_NONINTRA
discard all non intra frames
Definition defs.h:230
AVDISCARD_NONREF
@ AVDISCARD_NONREF
discard all non reference
Definition defs.h:228
av_dict_set
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition dict.c:86
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition error.h:64
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition error.h:52
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition error.h:61
AVERROR
#define AVERROR(e)
Definition error.h:45
AV_FRAME_FLAG_INTERLACED
#define AV_FRAME_FLAG_INTERLACED
A flag to mark frames whose content is interlaced.
Definition frame.h:695
AV_FRAME_FLAG_TOP_FIELD_FIRST
#define AV_FRAME_FLAG_TOP_FIELD_FIRST
A flag to mark frames where the top field is displayed first if the content is interlaced.
Definition frame.h:700
AV_FRAME_FLAG_CORRUPT
#define AV_FRAME_FLAG_CORRUPT
The frame data may be corrupted, e.g.
Definition frame.h:683
AV_FRAME_FLAG_KEY
#define AV_FRAME_FLAG_KEY
A flag to mark frames that are keyframes.
Definition frame.h:687
AV_FRAME_DATA_LCEVC
@ AV_FRAME_DATA_LCEVC
Raw LCEVC payload data, as a uint8_t array, with NAL emulation bytes intact.
Definition frame.h:236
AV_FRAME_DATA_S12M_TIMECODE
@ AV_FRAME_DATA_S12M_TIMECODE
Timecode which conforms to SMPTE ST 12-1.
Definition frame.h:152
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition log.h:216
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition log.h:226
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition rational.c:35
av_cmp_q
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition rational.h:89
av_fast_mallocz
void av_fast_mallocz(void *ptr, unsigned int *size, size_t min_size)
Allocate and clear a buffer, reusing the given one if large enough.
Definition mem.c:560
av_fast_malloc
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
Definition mem.c:555
av_memcpy_backptr
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
Overlapping memcpy() implementation.
Definition mem.c:445
av_get_picture_type_char
char av_get_picture_type_char(enum AVPictureType pict_type)
Return a single letter to describe the given picture type pict_type.
Definition utils.c:40
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition avutil.h:278
AV_PICTURE_TYPE_SP
@ AV_PICTURE_TYPE_SP
Switching Predicted.
Definition avutil.h:283
AV_PICTURE_TYPE_P
@ AV_PICTURE_TYPE_P
Predicted.
Definition avutil.h:279
AV_PICTURE_TYPE_SI
@ AV_PICTURE_TYPE_SI
Switching Intra.
Definition avutil.h:282
AV_PICTURE_TYPE_B
@ AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition avutil.h:280
ff_h2645_sei_to_frame
int ff_h2645_sei_to_frame(AVFrame *frame, H2645SEI *sei, enum AVCodecID codec_id, AVCodecContext *avctx, const H2645VUI *vui, unsigned bit_depth_luma, unsigned bit_depth_chroma, int seed)
Definition h2645_sei.c:518
ff_h2645_sei_ctx_replace
int ff_h2645_sei_ctx_replace(H2645SEI *dst, const H2645SEI *src)
Definition h2645_sei.c:320
h264.h
H.264 common definitions.
H264_MAX_DPB_FRAMES
@ H264_MAX_DPB_FRAMES
Definition h264.h:76
H264_NAL_IDR_SLICE
@ H264_NAL_IDR_SLICE
Definition h264.h:39
CABAC
#define CABAC(h)
Definition h264_cabac.c:28
ff_h264_decode_mb_cabac
int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
Decode a macroblock.
Definition h264_cabac.c:1920
ff_h264_init_cabac_states
void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
Definition h264_cabac.c:1262
ff_h264_decode_mb_cavlc
int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl)
Decode a macroblock.
Definition h264_cavlc.c:665
ff_h264_direct_ref_list_init
void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
Definition h264_direct.c:120
ff_h264_direct_dist_scale_factor
void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl)
Definition h264_direct.c:61
ff_h264_filter_mb
void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
Definition h264_loopfilter.c:716
ff_h264_filter_mb_fast
void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
Definition h264_loopfilter.c:416
ff_h264_hl_decode_mb
void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl)
Definition h264_mb.c:800
ff_h264_get_profile
int ff_h264_get_profile(const SPS *sps)
Compute profile from profile_idc and constraint_set?_flags.
Definition h264_parse.c:533
ff_h264_parse_ref_count
int ff_h264_parse_ref_count(int *plist_count, int ref_count[2], GetBitContext *gb, const PPS *pps, int slice_type_nos, int picture_structure, void *logctx)
Definition h264_parse.c:222
ff_h264_init_poc
int ff_h264_init_poc(int pic_field_poc[2], int *pic_poc, const SPS *sps, H264POCContext *pc, int picture_structure, int nal_ref_idc)
Definition h264_parse.c:280
ff_h264_pred_weight_table
int ff_h264_pred_weight_table(GetBitContext *gb, const SPS *sps, const int *ref_count, int slice_type_nos, H264PredWeightTable *pwt, int picture_structure, void *logctx)
Definition h264_parse.c:30
scan8
static const uint8_t scan8[16 *3+3]
Definition h264_parse.h:40
pack16to32
static av_always_inline uint32_t pack16to32(unsigned a, unsigned b)
Definition h264_parse.h:127
ff_h264_set_erpic
void ff_h264_set_erpic(ERPicture *dst, const H264Picture *src)
Definition h264_picture.c:166
ff_h264_unref_picture
void ff_h264_unref_picture(H264Picture *pic)
Definition h264_picture.c:39
ff_h264_ref_picture
int ff_h264_ref_picture(H264Picture *dst, const H264Picture *src)
Definition h264_picture.c:108
ff_h264_field_end
int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup)
Definition h264_picture.c:189
ff_h264_replace_picture
int ff_h264_replace_picture(H264Picture *dst, const H264Picture *src)
Definition h264_picture.c:135
h264_ps.h
H.264 parameter set handling.
MAX_PPS_COUNT
#define MAX_PPS_COUNT
Definition h264_ps.h:38
ff_h264_decode_ref_pic_list_reordering
int ff_h264_decode_ref_pic_list_reordering(H264SliceContext *sl, void *logctx)
Definition h264_refs.c:431
ff_h264_decode_ref_pic_marking
int ff_h264_decode_ref_pic_marking(H264SliceContext *sl, GetBitContext *gb, const H2645NAL *nal, void *logctx)
Definition h264_refs.c:832
ff_h264_execute_ref_pic_marking
int ff_h264_execute_ref_pic_marking(H264Context *h)
Execute the reference picture marking (memory management control operations).
Definition h264_refs.c:610
ff_h264_build_ref_list
int ff_h264_build_ref_list(H264Context *h, H264SliceContext *sl)
Definition h264_refs.c:292
ff_h264_sei_process_picture_timing
int ff_h264_sei_process_picture_timing(H264SEIPictureTiming *h, const SPS *sps, void *logctx)
Parse the contents of a picture timing message given an active SPS.
Definition h264_sei.c:63
H264_SEI_PIC_STRUCT_BOTTOM_FIELD
@ H264_SEI_PIC_STRUCT_BOTTOM_FIELD
2: bottom field
Definition h264_sei.h:34
H264_SEI_PIC_STRUCT_BOTTOM_TOP
@ H264_SEI_PIC_STRUCT_BOTTOM_TOP
4: bottom field, top field, in that order
Definition h264_sei.h:36
H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP
@ H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP
5: top field, bottom field, top field repeated, in that order
Definition h264_sei.h:37
H264_SEI_PIC_STRUCT_TOP_FIELD
@ H264_SEI_PIC_STRUCT_TOP_FIELD
1: top field
Definition h264_sei.h:33
H264_SEI_PIC_STRUCT_FRAME_TRIPLING
@ H264_SEI_PIC_STRUCT_FRAME_TRIPLING
8: frame tripling
Definition h264_sei.h:40
H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM
@ H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM
6: bottom field, top field, bottom field repeated, in that order
Definition h264_sei.h:38
H264_SEI_PIC_STRUCT_TOP_BOTTOM
@ H264_SEI_PIC_STRUCT_TOP_BOTTOM
3: top field, bottom field, in that order
Definition h264_sei.h:35
H264_SEI_PIC_STRUCT_FRAME_DOUBLING
@ H264_SEI_PIC_STRUCT_FRAME_DOUBLING
7: frame doubling
Definition h264_sei.h:39
H264_SEI_PIC_STRUCT_FRAME
@ H264_SEI_PIC_STRUCT_FRAME
0: frame
Definition h264_sei.h:32
find_unused_picture
static int find_unused_picture(const H264Context *h)
Definition h264_slice.c:274
backup_mb_border
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl, const uint8_t *src_y, const uint8_t *src_cb, const uint8_t *src_cr, int linesize, int uvlinesize, int simple)
Definition h264_slice.c:587
h264_frame_start
static int h264_frame_start(H264Context *h)
Definition h264_slice.c:483
init_dimensions
static void init_dimensions(H264Context *h)
Definition h264_slice.c:932
ff_h264_update_thread_context
int ff_h264_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition h264_slice.c:338
init_scan_tables
static void init_scan_tables(H264Context *h)
initialize scan tables
Definition h264_slice.c:753
fill_filter_caches
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
Definition h264_slice.c:2303
h264_slice_init
static int h264_slice_init(H264Context *h, H264SliceContext *sl, const H2645NAL *nal)
Definition h264_slice.c:1922
implicit_weight_table
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
Initialize implicit_weight table.
Definition h264_slice.c:689
er_add_slice
static void er_add_slice(H264SliceContext *sl, int startx, int starty, int endx, int endy, int status)
Definition h264_slice.c:2559
ff_h264_execute_decode_slices
int ff_h264_execute_decode_slices(H264Context *h)
Call decode_slice() for each context.
Definition h264_slice.c:2783
predict_field_decoding_flag
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
Definition h264_slice.c:2515
h264_field_start
static int h264_field_start(H264Context *h, const H264SliceContext *sl, const H2645NAL *nal, int first_slice)
Definition h264_slice.c:1404
ff_h264_queue_decode_slice
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
Submit a slice for decoding.
Definition h264_slice.c:2076
REBASE_PICTURE
#define REBASE_PICTURE(pic, new_ctx, old_ctx)
Definition h264_slice.c:288
copy_picture_range
static void copy_picture_range(H264Picture **to, H264Picture *const *from, int count, H264Context *new_base, const H264Context *old_base)
Definition h264_slice.c:293
field_scan
static const uint8_t field_scan[16+1]
Definition h264_slice.c:52
loop_filter
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
Definition h264_slice.c:2445
IN_RANGE
#define IN_RANGE(a, b, size)
Definition h264_slice.c:286
alloc_scratch_buffers
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
Definition h264_slice.c:130
h264_slice_header_parse
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl, const H2645NAL *nal)
Definition h264_slice.c:1703
fill_filter_caches_inter
static av_always_inline void fill_filter_caches_inter(const H264Context *h, H264SliceContext *sl, int mb_type, int top_xy, const int left_xy[LEFT_MBS], int top_type, const int left_type[LEFT_MBS], int mb_xy, int list)
Definition h264_slice.c:2219
color_frame
static void color_frame(AVFrame *frame, const int c[4])
Definition h264_slice.c:306
field_scan8x8
static const uint8_t field_scan8x8[64+1]
Definition h264_slice.c:59
h264_export_frame_props
static int h264_export_frame_props(H264Context *h)
Definition h264_slice.c:1178
alloc_picture
static int alloc_picture(H264Context *h, H264Picture *pic)
Definition h264_slice.c:188
field_scan8x8_cavlc
static const uint8_t field_scan8x8_cavlc[64+1]
Definition h264_slice.c:78
release_unused_pictures
static void release_unused_pictures(H264Context *h, int remove_current)
Definition h264_slice.c:117
h264_slice_header_init
static int h264_slice_header_init(H264Context *h)
Definition h264_slice.c:972
h264_init_ps
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
Definition h264_slice.c:1065
ff_h264_update_thread_context_for_user
int ff_h264_update_thread_context_for_user(AVCodecContext *dst, const AVCodecContext *src)
Definition h264_slice.c:471
get_pixel_format
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
Definition h264_slice.c:787
decode_slice
static int decode_slice(struct AVCodecContext *avctx, void *arg)
Definition h264_slice.c:2571
ff_h264_get_slice_type
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition h264_slice.c:2201
init_table_pools
static int init_table_pools(H264Context *h)
Definition h264_slice.c:162
decode_finish_row
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
Draw edges and report progress for the last MB row.
Definition h264_slice.c:2528
non_j_pixfmt
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
Definition h264_slice.c:1054
h264_select_output_frame
static int h264_select_output_frame(H264Context *h)
Definition h264_slice.c:1302
zigzag_scan8x8_cavlc
static const uint8_t zigzag_scan8x8_cavlc[64+1]
Definition h264_slice.c:98
TRANSPOSE
#define TRANSPOSE(x)
ff_h264_golomb_to_pict_type
const uint8_t ff_h264_golomb_to_pict_type[5]
Definition h264data.c:37
h264dec.h
H.264 / AVC / MPEG-4 part10 codec.
FIELD_OR_MBAFF_PICTURE
#define FIELD_OR_MBAFF_PICTURE(h)
Definition h264dec.h:82
FRAME_RECOVERED_IDR
#define FRAME_RECOVERED_IDR
We have seen an IDR, so all the following frames in coded order are correctly decodable.
Definition h264dec.h:522
MB_MBAFF
#define MB_MBAFF(h)
Definition h264dec.h:62
LBOT
#define LBOT
Definition h264dec.h:68
CHROMA444
#define CHROMA444(h)
Definition h264dec.h:90
H264_MAX_PICTURE_COUNT
#define H264_MAX_PICTURE_COUNT
Definition h264dec.h:47
IS_8x8DCT
#define IS_8x8DCT(a)
Definition h264dec.h:93
MB_FIELD
#define MB_FIELD(sl)
Definition h264dec.h:63
FIELD_PICTURE
#define FIELD_PICTURE(h)
Definition h264dec.h:65
LIST_NOT_USED
#define LIST_NOT_USED
Definition h264dec.h:395
get_chroma_qp
static av_always_inline int get_chroma_qp(const PPS *pps, int t, int qscale)
Get the chroma qp.
Definition h264dec.h:672
FRAME_RECOVERED_SEI
#define FRAME_RECOVERED_SEI
Sufficient number of frames have been decoded since a SEI recovery point, so all the following frames...
Definition h264dec.h:527
CHROMA422
#define CHROMA422(h)
Definition h264dec.h:89
LEFT_MBS
#define LEFT_MBS
Definition h264dec.h:66
USES_LIST
#define USES_LIST(a, list)
Definition h264dec.h:101
FRAME_MBAFF
#define FRAME_MBAFF(h)
Definition h264dec.h:64
LTOP
#define LTOP
Definition h264dec.h:67
a
int a
Definition h264pred_template.c:416
AV_ZERO32
#define AV_ZERO32(d)
Definition intreadwrite.h:662
AV_COPY128
#define AV_COPY128(d, s)
Definition intreadwrite.h:642
AV_COPY64
#define AV_COPY64(d, s)
Definition intreadwrite.h:638
AV_ZERO128
#define AV_ZERO128(d)
Definition intreadwrite.h:670
AV_WN32A
#define AV_WN32A(p, v)
Definition intreadwrite.h:534
AV_COPY32
#define AV_COPY32(d, s)
Definition intreadwrite.h:634
HWACCEL_MAX
#define HWACCEL_MAX
DELAYED_PIC_REF
#define DELAYED_PIC_REF
Value of Picture.reference when Picture is not a reference picture, but is held for delayed output.
Definition diracdec.c:69
ff_h264chroma_init
av_cold void ff_h264chroma_init(H264ChromaContext *c, int bit_depth)
Definition h264chroma.c:43
ff_h264_alloc_tables
int ff_h264_alloc_tables(H264Context *h)
Allocate tables.
Definition h264dec.c:187
ff_h264_free_tables
void ff_h264_free_tables(H264Context *h)
Definition h264dec.c:142
ff_h264_draw_horiz_band
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition h264dec.c:104
ff_h264_slice_context_init
void ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl)
Init slice context.
Definition h264dec.c:264
ff_h264_flush_change
void ff_h264_flush_change(H264Context *h)
Definition h264dec.c:451
ff_h264dsp_init
av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth, const int chroma_format_idc)
Definition h264dsp.c:66
ff_h264_pred_init
av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id, const int bit_depth, int chroma_format_idc)
Set the intra prediction function pointers.
Definition h264pred.c:437
ff_h264qpel_init
av_cold void ff_h264qpel_init(H264QpelContext *c, int bit_depth)
Definition h264qpel.c:50
arg
const char * arg
Definition jacosubdec.c:65
from
const char * from
Definition jacosubdec.c:64
thread.h
Multithreading API for decoders.
ff_videodsp_init
av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
Definition videodsp.c:39
to
const char * to
Definition webvttdec.c:36
av_always_inline
#define av_always_inline
Definition attributes.h:72
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition libkvazaar.c:296
desc
const char * desc
Definition libsvtav1.c:83
w
uint8_t w
Definition llvidencdsp.c:39
FFMAX3
#define FFMAX3(a, b, c)
Definition macros.h:48
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
FFALIGN
#define FFALIGN(x, a)
Definition macros.h:78
ff_zigzag_direct
const uint8_t ff_zigzag_direct[64]
Definition mathtables.c:137
ff_zigzag_scan
const uint8_t ff_zigzag_scan[16+1]
Definition mathtables.c:148
mem.h
Memory handling functions.
IS_INTERLACED
#define IS_INTERLACED(a)
Definition mpegutils.h:77
IS_DIRECT
#define IS_DIRECT(a)
Definition mpegutils.h:78
IS_INTER
#define IS_INTER(a)
Definition mpegutils.h:73
PICT_TOP_FIELD
#define PICT_TOP_FIELD
Definition mpegutils.h:31
PICT_BOTTOM_FIELD
#define PICT_BOTTOM_FIELD
Definition mpegutils.h:32
PICT_FRAME
#define PICT_FRAME
Definition mpegutils.h:33
av_pix_fmt_get_chroma_sub_sample
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition pixdesc.c:3488
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition pixdesc.c:3380
av_color_transfer_name
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition pixdesc.c:3827
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition pixdesc.c:3460
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition pixdesc.h:132
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition pixfmt.h:552
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition pixfmt.h:544
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition pixfmt.h:545
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition pixfmt.h:563
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition pixfmt.h:543
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition pixfmt.h:766
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition pixfmt.h:783
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition pixfmt.h:549
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition pixfmt.h:550
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition pixfmt.h:564
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition pixfmt.h:546
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition pixfmt.h:565
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition pixfmt.h:542
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition pixfmt.h:553
AVPixelFormat
AVPixelFormat
Pixel format.
Definition pixfmt.h:71
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition pixfmt.h:72
AV_PIX_FMT_VULKAN
@ AV_PIX_FMT_VULKAN
Vulkan hardware images.
Definition pixfmt.h:379
AV_PIX_FMT_VIDEOTOOLBOX
@ AV_PIX_FMT_VIDEOTOOLBOX
hardware decoding through Videotoolbox
Definition pixfmt.h:305
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition pixfmt.h:73
AV_PIX_FMT_D3D12
@ AV_PIX_FMT_D3D12
Hardware surfaces for Direct3D 12.
Definition pixfmt.h:440
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition pixfmt.h:77
AV_PIX_FMT_DXVA2_VLD
@ AV_PIX_FMT_DXVA2_VLD
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer.
Definition pixfmt.h:134
AV_PIX_FMT_CUDA
@ AV_PIX_FMT_CUDA
HW acceleration through CUDA.
Definition pixfmt.h:260
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition pixfmt.h:78
AV_PIX_FMT_D3D11
@ AV_PIX_FMT_D3D11
Hardware surfaces for Direct3D11.
Definition pixfmt.h:336
AV_PIX_FMT_CUARRAY
@ AV_PIX_FMT_CUARRAY
hardware decoding through openharmony
Definition pixfmt.h:506
AV_PIX_FMT_D3D11VA_VLD
@ AV_PIX_FMT_D3D11VA_VLD
HW decoding through Direct3D11 via old API, Picture.data[3] contains a ID3D11VideoDecoderOutputView p...
Definition pixfmt.h:254
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition pixfmt.h:86
AV_PIX_FMT_VAAPI
@ AV_PIX_FMT_VAAPI
Hardware acceleration through VA-API, data[3] contains a VASurfaceID.
Definition pixfmt.h:126
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition pixfmt.h:165
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition pixfmt.h:87
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition pixfmt.h:85
AV_PIX_FMT_VDPAU
@ AV_PIX_FMT_VDPAU
HW acceleration through VDPAU, Picture.data[3] contains a VdpVideoSurface.
Definition pixfmt.h:194
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition pixfmt.h:554
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition pixfmt.h:675
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition pixfmt.h:555
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition pixfmt.h:566
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition pixfmt.h:548
AVCOL_SPC_RGB
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
Definition pixfmt.h:707
IS_INTRA
#define IS_INTRA(x, y)
ff_thread_get_buffer
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition pthread_frame.c:1037
ff_thread_report_progress
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
Notify later decoding threads when part of their reference picture is ready.
Definition pthread_frame.c:621
ff_thread_release_ext_buffer
void ff_thread_release_ext_buffer(ThreadFrame *f)
Unref a ThreadFrame.
Definition pthread_frame.c:1066
ff_thread_get_ext_buffer
int ff_thread_get_ext_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around ff_get_buffer() for frame-multithreaded codecs.
Definition pthread_frame.c:1045
ff_thread_can_start_frame
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition pthread_frame.c:1001
ff_thread_await_progress
void ff_thread_await_progress(const ThreadFrame *f, int n, int field)
Wait for earlier decoding threads to finish reference pictures.
Definition pthread_frame.c:644
rectangle.h
useful rectangle filling function
av_refstruct_pool_alloc
AVRefStructPool * av_refstruct_pool_alloc(size_t size, unsigned flags)
Equivalent to av_refstruct_pool_alloc(size, flags, NULL, NULL, NULL, NULL, NULL)
Definition refstruct.c:335
av_refstruct_replace
void av_refstruct_replace(void *dstp, const void *src)
Ensure *dstp refers to the same object as src.
Definition refstruct.c:160
av_refstruct_ref_c
const void * av_refstruct_ref_c(const void *obj)
Analog of av_refstruct_ref(), but for constant objects.
Definition refstruct.c:149
av_refstruct_pool_get
void * av_refstruct_pool_get(AVRefStructPool *pool)
Get an object from the pool, reusing an old one from the pool when available.
Definition refstruct.c:297
av_refstruct_pool_uninit
static void av_refstruct_pool_uninit(AVRefStructPool **poolp)
Mark the pool as being available for freeing.
Definition refstruct.h:292
pt
int pt
Definition rtp.c:35
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition sinewin_tablegen.c:29
AVBufferRef::buffer
AVBuffer * buffer
Definition buffer.h:83
AVBuffer
A reference counted buffer type.
Definition buffer_internal.h:38
AVCodecContext
main external API structure.
Definition avcodec.h:443
AVCodecContext::execute
int(* execute)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size)
The codec may call this to execute several independent things.
Definition avcodec.h:1609
AVFrameSideData
Structure to hold side data for an AVFrame.
Definition frame.h:327
AVFrameSideData::data
uint8_t * data
Definition frame.h:329
AVFrame
This structure describes decoded (raw) audio or video data.
Definition frame.h:472
AVFrame::crop_right
size_t crop_right
Definition frame.h:798
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition frame.h:493
AVFrame::width
int width
Definition frame.h:544
AVFrame::height
int height
Definition frame.h:544
AVFrame::flags
int flags
Frame flags, a combination of AV_FRAME_FLAGS.
Definition frame.h:716
AVFrame::buf
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition frame.h:649
AVFrame::crop_top
size_t crop_top
Definition frame.h:795
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition frame.h:517
AVFrame::crop_left
size_t crop_left
Definition frame.h:797
AVFrame::crop_bottom
size_t crop_bottom
Definition frame.h:796
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition frame.h:559
AVFrame::pict_type
enum AVPictureType pict_type
Picture type of the frame.
Definition frame.h:564
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition pixdesc.h:69
CABACContext::bytestream_end
const uint8_t * bytestream_end
Definition cabac.h:46
CABACContext::bytestream
const uint8_t * bytestream
Definition cabac.h:45
ERContext::error_status_table
uint8_t * error_status_table
Definition error_resilience.h:68
GetBitContext::buffer
const uint8_t * buffer
Definition get_bits.h:110
H264Context
H264Context.
Definition h264dec.h:338
H264Context::DPB
H264Picture DPB[H264_MAX_PICTURE_COUNT]
Definition h264dec.h:346
H264Context::is_avc
int is_avc
Used to parse AVC variant of H.264.
Definition h264dec.h:454
H264Context::enable_er
int enable_er
Definition h264dec.h:564
H264Context::nal_length_size
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
Definition h264dec.h:455
H264Picture::pps
const PPS * pps
Definition h264dec.h:156
H264Picture::decode_error_flags
atomic_int * decode_error_flags
RefStruct reference; its pointee is shared between decoding threads.
Definition h264dec.h:162
H264Picture::mb_type
uint32_t * mb_type
Definition h264dec.h:125
H264Picture::mb_stride
int mb_stride
Definition h264dec.h:159
H264Picture::recovered
int recovered
picture at IDR or recovery point + recovery count
Definition h264dec.h:151
H264Picture::invalid_gap
int invalid_gap
Definition h264dec.h:152
H264Picture::motion_val
int16_t(*[2] motion_val)[2]
Definition h264dec.h:122
H264Picture::ref_index
int8_t * ref_index[2]
RefStruct reference.
Definition h264dec.h:130
H264Picture::reference
int reference
Definition h264dec.h:150
H264Picture::qscale_table
int8_t * qscale_table
Definition h264dec.h:119
H264Picture::sei_recovery_frame_cnt
int sei_recovery_frame_cnt
Definition h264dec.h:153
H264Picture::field_picture
int field_picture
whether or not picture was encoded in separate fields
Definition h264dec.h:143
H264Picture::frame_num
int frame_num
frame_num (raw frame_num from slice header)
Definition h264dec.h:134
H264Picture::long_ref
int long_ref
1->long term reference 0->short term reference
Definition h264dec.h:139
H264Picture::hwaccel_picture_private
void * hwaccel_picture_private
RefStruct reference for hardware accelerator private data.
Definition h264dec.h:128
H264Picture::f
AVFrame * f
Definition h264dec.h:113
H264Picture::mmco_reset
int mmco_reset
MMCO_RESET set this 1.
Definition h264dec.h:135
H264Picture::field_poc
int field_poc[2]
top/bottom POC
Definition h264dec.h:132
H264Picture::poc
int poc
frame POC
Definition h264dec.h:133
H264Picture::qscale_table_base
int8_t * qscale_table_base
RefStruct reference.
Definition h264dec.h:118
H264Picture::motion_val_base
int16_t(*[2] motion_val_base)[2]
RefStruct reference.
Definition h264dec.h:121
H264Picture::mb_type_base
uint32_t * mb_type_base
RefStruct reference.
Definition h264dec.h:124
H264Picture::mb_height
int mb_height
Definition h264dec.h:158
H264Picture::f_grain
AVFrame * f_grain
Definition h264dec.h:116
H264Picture::mb_width
int mb_width
Definition h264dec.h:158
H264Picture::tf
ThreadFrame tf
Definition h264dec.h:114
H264Picture::needs_fg
int needs_fg
whether picture needs film grain synthesis (see f_grain)
Definition h264dec.h:154
H264PredWeightTable::implicit_weight
int implicit_weight[48][48][2]
Definition h264_parse.h:79
H264PredWeightTable::chroma_weight_flag
int chroma_weight_flag[2]
7.4.3.2 chroma_weight_lX_flag
Definition h264_parse.h:75
H264PredWeightTable::luma_weight_flag
int luma_weight_flag[2]
7.4.3.2 luma_weight_lX_flag
Definition h264_parse.h:74
H264Ref::poc
int poc
Definition h264dec.h:172
H264Ref::parent
const H264Picture * parent
Definition h264dec.h:175
H264Ref::reference
int reference
Definition h264dec.h:171
H264SliceContext::mb_linesize
ptrdiff_t mb_linesize
may be equal to s->linesize or s->linesize * 2, for mbaff
Definition h264dec.h:228
H264SliceContext::uvlinesize
ptrdiff_t uvlinesize
Definition h264dec.h:227
H264SliceContext::mb_field_decoding_flag
int mb_field_decoding_flag
Definition h264dec.h:242
H264SliceContext::list_count
unsigned int list_count
Definition h264dec.h:269
H264SliceContext::ref_cache
int8_t ref_cache[2][5 *8]
Definition h264dec.h:300
H264SliceContext::pwt
H264PredWeightTable pwt
Definition h264dec.h:198
H264SliceContext::left_type
int left_type[LEFT_MBS]
Definition h264dec.h:217
H264SliceContext::pps_id
unsigned int pps_id
Definition h264dec.h:279
H264SliceContext::first_mb_addr
unsigned int first_mb_addr
Definition h264dec.h:235
H264SliceContext::bipred_scratchpad_allocated
int bipred_scratchpad_allocated
Definition h264dec.h:286
H264SliceContext::linesize
ptrdiff_t linesize
Definition h264dec.h:227
H264SliceContext::mb_uvlinesize
ptrdiff_t mb_uvlinesize
Definition h264dec.h:229
H264SliceContext::mv_cache
int16_t mv_cache[2][5 *8][2]
Motion vector cache.
Definition h264dec.h:299
H264SliceContext::left_mb_xy
int left_mb_xy[LEFT_MBS]
Definition h264dec.h:212
H264SliceContext::cabac
CABACContext cabac
Cabac.
Definition h264dec.h:318
H264SliceContext::edge_emu_buffer
uint8_t * edge_emu_buffer
Definition h264dec.h:284
H264SliceContext::redundant_pic_count
int redundant_pic_count
Definition h264dec.h:245
H264SliceContext::delta_poc
int delta_poc[2]
Definition h264dec.h:330
H264SliceContext::deblocking_filter
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition h264dec.h:194
H264SliceContext::top_borders_allocated
int top_borders_allocated[2]
Definition h264dec.h:288
H264SliceContext::bipred_scratchpad
uint8_t * bipred_scratchpad
Definition h264dec.h:283
H264SliceContext::qp_thresh
int qp_thresh
QP threshold to skip loopfilter.
Definition h264dec.h:190
H264SliceContext::slice_type_nos
int slice_type_nos
S free slice type (SI/SP are remapped to I/P)
Definition h264dec.h:185
H264SliceContext::top_borders
uint8_t(*[2] top_borders)[(16 *3) *2]
Definition h264dec.h:285
H264SliceContext::ref_list
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition h264dec.h:270
H264SliceContext::direct_spatial_mv_pred
int direct_spatial_mv_pred
Definition h264dec.h:252
H264SliceContext::mb_mbaff
int mb_mbaff
mb_aff_frame && mb_field_decoding_flag
Definition h264dec.h:243
H264SliceContext::mvd_table
uint8_t(*[2] mvd_table)[2]
Definition h264dec.h:313
H264SliceContext::gb
GetBitContext gb
Definition h264dec.h:180
H264SliceContext::chroma_qp
int chroma_qp[2]
Definition h264dec.h:189
H264SliceContext::intra4x4_pred_mode
int8_t * intra4x4_pred_mode
Definition h264dec.h:207
H264SliceContext::er
ERContext * er
Definition h264dec.h:181
H264SliceContext::h264
const struct H264Context * h264
Definition h264dec.h:179
H264SliceContext::edge_emu_buffer_allocated
int edge_emu_buffer_allocated
Definition h264dec.h:287
H264SliceContext::explicit_ref_marking
int explicit_ref_marking
Definition h264dec.h:324
H264SliceContext::slice_alpha_c0_offset
int slice_alpha_c0_offset
Definition h264dec.h:195
H264SliceContext::non_zero_count_cache
uint8_t non_zero_count_cache[15 *8]
non zero coeff count cache.
Definition h264dec.h:294
H264SliceContext::slice_beta_offset
int slice_beta_offset
Definition h264dec.h:196
H264SliceContext::ref_count
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition h264dec.h:268
H264SliceContext::mmco
MMCO mmco[H264_MAX_MMCO_COUNT]
Definition h264dec.h:322
H264SliceContext::picture_structure
int picture_structure
Definition h264dec.h:241
PPS
Picture parameter set.
Definition h264_ps.h:110
SPS
Sequence parameter set.
Definition h264_ps.h:44
ThreadFrame::f
AVFrame * f
Definition threadframe.h:28
avpriv_request_sample
#define avpriv_request_sample(...)
Definition tableprint_vlc.h:37
av_freep
#define av_freep(p)
Definition tableprint_vlc.h:35
ff_tlog
#define ff_tlog(a,...)
Definition tableprint_vlc.h:29
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
tmp
static uint8_t tmp[40]
Definition aes_ctr.c:52
src
#define src
Definition vp8dsp.c:248
ref
static int ref[MAX_W *MAX_W]
Definition jpeg2000dwt.c:117
height
#define height
Definition dsp.h:89
width
#define width
Definition dsp.h:89
ff_thread_ref_frame
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
Definition utils.c:869
av_timecode_get_smpte
uint32_t av_timecode_get_smpte(AVRational rate, int drop, int hh, int mm, int ss, int ff)
Convert sei info to SMPTE 12M binary representation.
Definition timecode.c:70
av_timecode_make_smpte_tc_string2
char * av_timecode_make_smpte_tc_string2(char *buf, AVRational rate, uint32_t tcsmpte, int prevent_df, int skip_field)
Get the timecode string from the SMPTE timecode format.
Definition timecode.c:131
timecode.h
Timecode helpers header.
AV_TIMECODE_STR_SIZE
#define AV_TIMECODE_STR_SIZE
Definition timecode.h:33
cr
static double cr(void *priv, double x, double y)
Definition vf_geq.c:248
cb
static double cb(void *priv, double x, double y)
Definition vf_geq.c:247
h
h
Definition vp9dsp_template.c:2070
c
static double c[64]
Definition vsrc_mptestsrc.c:89
Generated on Mon Aug 24 2026 19:20:55 for FFmpeg by doxygen 1.13.2