FFmpeg
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h264_slice.c
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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 && !ff_h264_skip_all_pixels(h->avctx) &&
227 h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
228 int h_chroma_shift, v_chroma_shift;
229 av_pix_fmt_get_chroma_sub_sample(pic->f->format,
230 &h_chroma_shift, &v_chroma_shift);
231
232 for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
233 memset(pic->f->data[1] + pic->f->linesize[1]*i,
234 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
235 memset(pic->f->data[2] + pic->f->linesize[2]*i,
236 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
237 }
238 }
239
240 if (!h->qscale_table_pool) {
241 ret = init_table_pools(h);
242 if (ret < 0)
243 goto fail;
244 }
245
246 pic->qscale_table_base = av_refstruct_pool_get(h->qscale_table_pool);
247 pic->mb_type_base = av_refstruct_pool_get(h->mb_type_pool);
248 if (!pic->qscale_table_base || !pic->mb_type_base)
249 goto fail;
250
251 pic->mb_type = pic->mb_type_base + 2 * h->mb_stride + 1;
252 pic->qscale_table = pic->qscale_table_base + 2 * h->mb_stride + 1;
253
254 for (i = 0; i < 2; i++) {
255 pic->motion_val_base[i] = av_refstruct_pool_get(h->motion_val_pool);
256 pic->ref_index[i] = av_refstruct_pool_get(h->ref_index_pool);
257 if (!pic->motion_val_base[i] || !pic->ref_index[i])
258 goto fail;
259
260 pic->motion_val[i] = pic->motion_val_base[i] + 4;
261 }
262
263 pic->pps = av_refstruct_ref_c(h->ps.pps);
264
265 pic->mb_width = h->mb_width;
266 pic->mb_height = h->mb_height;
267 pic->mb_stride = h->mb_stride;
268
269 return 0;
270fail:
271 ff_h264_unref_picture(pic);
272 return (ret < 0) ? ret : AVERROR(ENOMEM);
273}
274
275static int find_unused_picture(const H264Context *h)
276{
277 int i;
278
279 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
280 if (!h->DPB[i].f->buf[0])
281 return i;
282 }
283 return AVERROR_INVALIDDATA;
284}
285
286
287#define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
288
289#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
290 (((pic) && (pic) >= (old_ctx)->DPB && \
291 (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \
292 &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
293
294static void copy_picture_range(H264Picture **to, H264Picture *const *from, int count,
295 H264Context *new_base, const H264Context *old_base)
296{
297 int i;
298
299 for (i = 0; i < count; i++) {
300 av_assert1(!from[i] ||
301 IN_RANGE(from[i], old_base, 1) ||
302 IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
303 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
304 }
305}
306
307static void color_frame(AVFrame *frame, const int c[4])
308{
309 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
310
311 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
312
313 for (int p = 0; p < desc->nb_components; p++) {
314 uint8_t *dst = frame->data[p];
315 int is_chroma = p == 1 || p == 2;
316 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
317 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
318 if (desc->comp[0].depth >= 9) {
319 if (bytes >= 1)
320 ((uint16_t*)dst)[0] = c[p];
321 if (bytes >= 2)
322 av_memcpy_backptr(dst + 2, 2, 2 * (bytes - 1));
323 dst += frame->linesize[p];
324 for (int y = 1; y < height; y++) {
325 memcpy(dst, frame->data[p], 2*bytes);
326 dst += frame->linesize[p];
327 }
328 } else {
329 for (int y = 0; y < height; y++) {
330 memset(dst, c[p], bytes);
331 dst += frame->linesize[p];
332 }
333 }
334 }
335}
336
337static int h264_slice_header_init(H264Context *h);
338
339int ff_h264_update_thread_context(AVCodecContext *dst,
340 const AVCodecContext *src)
341{
342 H264Context *h = dst->priv_data, *h1 = src->priv_data;
343 int inited = h->context_initialized, err = 0;
344 int need_reinit = 0;
345 int i, ret;
346
347 if (dst == src)
348 return 0;
349
350 if (inited && !h1->ps.sps)
351 return AVERROR_INVALIDDATA;
352
353 if (inited &&
354 (h->width != h1->width ||
355 h->height != h1->height ||
356 h->mb_width != h1->mb_width ||
357 h->mb_height != h1->mb_height ||
358 !h->ps.sps ||
359 h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma ||
360 h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
361 h->ps.sps->vui.matrix_coeffs != h1->ps.sps->vui.matrix_coeffs)) {
362 need_reinit = 1;
363 }
364
365 /* copy block_offset since frame_start may not be called */
366 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
367
368 // SPS/PPS
369 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++)
370 av_refstruct_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
371 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++)
372 av_refstruct_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
373
374 av_refstruct_replace(&h->ps.pps, h1->ps.pps);
375 h->ps.sps = h1->ps.sps;
376
377 if (need_reinit || !inited) {
378 h->width = h1->width;
379 h->height = h1->height;
380 h->mb_height = h1->mb_height;
381 h->mb_width = h1->mb_width;
382 h->mb_num = h1->mb_num;
383 h->mb_stride = h1->mb_stride;
384 h->b_stride = h1->b_stride;
385 h->x264_build = h1->x264_build;
386
387 if (h->context_initialized || h1->context_initialized) {
388 if ((err = h264_slice_header_init(h)) < 0) {
389 av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
390 return err;
391 }
392 }
393
394 /* copy block_offset since frame_start may not be called */
395 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
396 }
397
398 h->width_from_caller = h1->width_from_caller;
399 h->height_from_caller = h1->height_from_caller;
400 h->first_field = h1->first_field;
401 h->picture_structure = h1->picture_structure;
402 h->mb_aff_frame = h1->mb_aff_frame;
403 h->droppable = h1->droppable;
404
405 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
406 ret = ff_h264_replace_picture(&h->DPB[i], &h1->DPB[i]);
407 if (ret < 0)
408 return ret;
409 }
410
411 h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
412 ret = ff_h264_replace_picture(&h->cur_pic, &h1->cur_pic);
413 if (ret < 0)
414 return ret;
415
416 h->enable_er = h1->enable_er;
417 h->workaround_bugs = h1->workaround_bugs;
418 h->droppable = h1->droppable;
419
420 // extradata/NAL handling
421 h->is_avc = h1->is_avc;
422 h->nal_length_size = h1->nal_length_size;
423
424 memcpy(&h->poc, &h1->poc, sizeof(h->poc));
425
426 memcpy(h->short_ref, h1->short_ref, sizeof(h->short_ref));
427 memcpy(h->long_ref, h1->long_ref, sizeof(h->long_ref));
428 memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
429 memcpy(h->last_pocs, h1->last_pocs, sizeof(h->last_pocs));
430
431 h->next_output_pic = h1->next_output_pic;
432 h->next_outputed_poc = h1->next_outputed_poc;
433 h->poc_offset = h1->poc_offset;
434
435 memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
436 h->nb_mmco = h1->nb_mmco;
437 h->mmco_reset = h1->mmco_reset;
438 h->explicit_ref_marking = h1->explicit_ref_marking;
439 h->long_ref_count = h1->long_ref_count;
440 h->short_ref_count = h1->short_ref_count;
441
442 copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
443 copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
444 copy_picture_range(h->delayed_pic, h1->delayed_pic,
445 FF_ARRAY_ELEMS(h->delayed_pic), h, h1);
446
447 h->frame_recovered = h1->frame_recovered;
448
449 ret = ff_h2645_sei_ctx_replace(&h->sei.common, &h1->sei.common);
450 if (ret < 0)
451 return ret;
452
453 h->sei.common.unregistered.x264_build = h1->sei.common.unregistered.x264_build;
454
455 if (!h->cur_pic_ptr)
456 return 0;
457
458 if (!h->droppable) {
459 err = ff_h264_execute_ref_pic_marking(h);
460 h->poc.prev_poc_msb = h->poc.poc_msb;
461 h->poc.prev_poc_lsb = h->poc.poc_lsb;
462 }
463 h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
464 h->poc.prev_frame_num = h->poc.frame_num;
465
466 h->recovery_frame = h1->recovery_frame;
467 h->non_gray = h1->non_gray;
468
469 return err;
470}
471
472int ff_h264_update_thread_context_for_user(AVCodecContext *dst,
473 const AVCodecContext *src)
474{
475 H264Context *h = dst->priv_data;
476 const H264Context *h1 = src->priv_data;
477
478 h->is_avc = h1->is_avc;
479 h->nal_length_size = h1->nal_length_size;
480
481 return 0;
482}
483
484static int h264_frame_start(H264Context *h)
485{
486 H264Picture *pic;
487 int i, ret;
488 const int pixel_shift = h->pixel_shift;
489
490 if (!ff_thread_can_start_frame(h->avctx)) {
491 av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
492 return AVERROR_BUG;
493 }
494
495 release_unused_pictures(h, 1);
496 h->cur_pic_ptr = NULL;
497
498 i = find_unused_picture(h);
499 if (i < 0) {
500 av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
501 return i;
502 }
503 pic = &h->DPB[i];
504
505 pic->reference = h->droppable ? 0 : h->picture_structure;
506 pic->field_picture = h->picture_structure != PICT_FRAME;
507 pic->frame_num = h->poc.frame_num;
508 /*
509 * Zero key_frame here; IDR markings per slice in frame or fields are ORed
510 * in later.
511 * See decode_nal_units().
512 */
513 pic->f->flags &= ~AV_FRAME_FLAG_KEY;
514 pic->mmco_reset = 0;
515 pic->recovered = 0;
516 pic->invalid_gap = 0;
517 pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
518
519 pic->f->pict_type = h->slice_ctx[0].slice_type;
520
521 pic->f->crop_left = h->crop_left;
522 pic->f->crop_right = h->crop_right;
523 pic->f->crop_top = h->crop_top;
524 pic->f->crop_bottom = h->crop_bottom;
525
526 pic->needs_fg =
527 h->sei.common.film_grain_characteristics &&
528 h->sei.common.film_grain_characteristics->present &&
529 !ff_h264_skip_all_pixels(h->avctx) &&
530 !h->avctx->hwaccel &&
531 !(h->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
532
533 if ((ret = alloc_picture(h, pic)) < 0)
534 return ret;
535
536 h->cur_pic_ptr = pic;
537 ff_h264_unref_picture(&h->cur_pic);
538 if (CONFIG_ERROR_RESILIENCE) {
539 ff_h264_set_erpic(&h->er.cur_pic, NULL);
540 }
541
542 if ((ret = ff_h264_ref_picture(&h->cur_pic, h->cur_pic_ptr)) < 0)
543 return ret;
544
545 for (i = 0; i < h->nb_slice_ctx; i++) {
546 h->slice_ctx[i].linesize = h->cur_pic_ptr->f->linesize[0];
547 h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
548 }
549
550 if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
551 ff_er_frame_start(&h->er);
552 ff_h264_set_erpic(&h->er.last_pic, NULL);
553 ff_h264_set_erpic(&h->er.next_pic, NULL);
554 }
555
556 for (i = 0; i < 16; i++) {
557 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
558 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
559 }
560 for (i = 0; i < 16; i++) {
561 h->block_offset[16 + i] =
562 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
563 h->block_offset[48 + 16 + i] =
564 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
565 }
566
567 /* We mark the current picture as non-reference after allocating it, so
568 * that if we break out due to an error it can be released automatically
569 * in the next ff_mpv_frame_start().
570 */
571 h->cur_pic_ptr->reference = 0;
572
573 h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
574
575 h->next_output_pic = NULL;
576
577 h->postpone_filter = 0;
578
579 h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
580
581 if (h->sei.common.unregistered.x264_build >= 0)
582 h->x264_build = h->sei.common.unregistered.x264_build;
583
584 assert(h->cur_pic_ptr->long_ref == 0);
585
586 return 0;
587}
588
589static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
590 const uint8_t *src_y,
591 const uint8_t *src_cb, const uint8_t *src_cr,
592 int linesize, int uvlinesize,
593 int simple)
594{
595 uint8_t *top_border;
596 int top_idx = 1;
597 const int pixel_shift = h->pixel_shift;
598 int chroma444 = CHROMA444(h);
599 int chroma422 = CHROMA422(h);
600
601 src_y -= linesize;
602 src_cb -= uvlinesize;
603 src_cr -= uvlinesize;
604
605 if (!simple && FRAME_MBAFF(h)) {
606 if (sl->mb_y & 1) {
607 if (!MB_MBAFF(sl)) {
608 top_border = sl->top_borders[0][sl->mb_x];
609 AV_COPY128(top_border, src_y + 15 * linesize);
610 if (pixel_shift)
611 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
612 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
613 if (chroma444) {
614 if (pixel_shift) {
615 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
616 AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
617 AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
618 AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
619 } else {
620 AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
621 AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
622 }
623 } else if (chroma422) {
624 if (pixel_shift) {
625 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
626 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
627 } else {
628 AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
629 AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
630 }
631 } else {
632 if (pixel_shift) {
633 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
634 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
635 } else {
636 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
637 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
638 }
639 }
640 }
641 }
642 } else if (MB_MBAFF(sl)) {
643 top_idx = 0;
644 } else
645 return;
646 }
647
648 top_border = sl->top_borders[top_idx][sl->mb_x];
649 /* There are two lines saved, the line above the top macroblock
650 * of a pair, and the line above the bottom macroblock. */
651 AV_COPY128(top_border, src_y + 16 * linesize);
652 if (pixel_shift)
653 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
654
655 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
656 if (chroma444) {
657 if (pixel_shift) {
658 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
659 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
660 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
661 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
662 } else {
663 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
664 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
665 }
666 } else if (chroma422) {
667 if (pixel_shift) {
668 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
669 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
670 } else {
671 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
672 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
673 }
674 } else {
675 if (pixel_shift) {
676 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
677 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
678 } else {
679 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
680 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
681 }
682 }
683 }
684}
685
686/**
687 * Initialize implicit_weight table.
688 * @param field 0/1 initialize the weight for interlaced MBAFF
689 * -1 initializes the rest
690 */
691static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
692{
693 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
694
695 for (i = 0; i < 2; i++) {
696 sl->pwt.luma_weight_flag[i] = 0;
697 sl->pwt.chroma_weight_flag[i] = 0;
698 }
699
700 if (field < 0) {
701 if (h->picture_structure == PICT_FRAME) {
702 cur_poc = h->cur_pic_ptr->poc;
703 } else {
704 cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
705 }
706 if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
707 sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
708 sl->pwt.use_weight = 0;
709 sl->pwt.use_weight_chroma = 0;
710 return;
711 }
712 ref_start = 0;
713 ref_count0 = sl->ref_count[0];
714 ref_count1 = sl->ref_count[1];
715 } else {
716 cur_poc = h->cur_pic_ptr->field_poc[field];
717 ref_start = 16;
718 ref_count0 = 16 + 2 * sl->ref_count[0];
719 ref_count1 = 16 + 2 * sl->ref_count[1];
720 }
721
722 sl->pwt.use_weight = 2;
723 sl->pwt.use_weight_chroma = 2;
724 sl->pwt.luma_log2_weight_denom = 5;
725 sl->pwt.chroma_log2_weight_denom = 5;
726
727 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
728 int64_t poc0 = sl->ref_list[0][ref0].poc;
729 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
730 int w = 32;
731 if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
732 int poc1 = sl->ref_list[1][ref1].poc;
733 int td = av_clip_int8(poc1 - poc0);
734 if (td) {
735 int tb = av_clip_int8(cur_poc - poc0);
736 int tx = (16384 + (FFABS(td) >> 1)) / td;
737 int dist_scale_factor = (tb * tx + 32) >> 8;
738 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
739 w = 64 - dist_scale_factor;
740 }
741 }
742 if (field < 0) {
743 sl->pwt.implicit_weight[ref0][ref1][0] =
744 sl->pwt.implicit_weight[ref0][ref1][1] = w;
745 } else {
746 sl->pwt.implicit_weight[ref0][ref1][field] = w;
747 }
748 }
749 }
750}
751
752/**
753 * initialize scan tables
754 */
755static void init_scan_tables(H264Context *h)
756{
757 int i;
758 for (i = 0; i < 16; i++) {
759#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
760 h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
761 h->field_scan[i] = TRANSPOSE(field_scan[i]);
762#undef TRANSPOSE
763 }
764 for (i = 0; i < 64; i++) {
765#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
766 h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
767 h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
768 h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
769 h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
770#undef TRANSPOSE
771 }
772 if (h->ps.sps->transform_bypass) { // FIXME same ugly
773 memcpy(h->zigzag_scan_q0 , ff_zigzag_scan , sizeof(h->zigzag_scan_q0 ));
774 memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 ));
775 memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
776 memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 ));
777 memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
778 memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
779 } else {
780 memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 ));
781 memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 ));
782 memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
783 memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 ));
784 memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
785 memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
786 }
787}
788
789static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback,
790 int data_partitioning)
791{
792#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
793 (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
794 CONFIG_H264_D3D12VA_HWACCEL + \
795 CONFIG_H264_NVDEC_HWACCEL + \
796 CONFIG_H264_NVDEC_CUARRAY_HWACCEL + \
797 CONFIG_H264_VAAPI_HWACCEL + \
798 CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
799 CONFIG_H264_VDPAU_HWACCEL + \
800 CONFIG_H264_VULKAN_HWACCEL)
801 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
802
803 switch (h->ps.sps->bit_depth_luma) {
804 case 9:
805 if (CHROMA444(h)) {
806 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
807 *fmt++ = AV_PIX_FMT_GBRP9;
808 } else
809 *fmt++ = AV_PIX_FMT_YUV444P9;
810 } else if (CHROMA422(h))
811 *fmt++ = AV_PIX_FMT_YUV422P9;
812 else
813 *fmt++ = AV_PIX_FMT_YUV420P9;
814 break;
815 case 10:
816#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
817 if (h->avctx->colorspace != AVCOL_SPC_RGB)
818 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
819#endif
820#if CONFIG_H264_VULKAN_HWACCEL
821 *fmt++ = AV_PIX_FMT_VULKAN;
822#endif
823#if CONFIG_H264_NVDEC_HWACCEL
824 *fmt++ = AV_PIX_FMT_CUDA;
825#endif
826#if CONFIG_H264_NVDEC_CUARRAY_HWACCEL
827 *fmt++ = AV_PIX_FMT_CUARRAY;
828#endif
829 if (CHROMA444(h)) {
830 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
831 *fmt++ = AV_PIX_FMT_GBRP10;
832 } else
833 *fmt++ = AV_PIX_FMT_YUV444P10;
834 } else if (CHROMA422(h))
835 *fmt++ = AV_PIX_FMT_YUV422P10;
836 else {
837#if CONFIG_H264_VAAPI_HWACCEL
838 // Just add as candidate. Whether VAProfileH264High10 usable or
839 // not is decided by vaapi_decode_make_config() defined in FFmpeg
840 // and vaQueryCodingProfile() defined in libva.
841 *fmt++ = AV_PIX_FMT_VAAPI;
842#endif
843 *fmt++ = AV_PIX_FMT_YUV420P10;
844 }
845 break;
846 case 12:
847#if CONFIG_H264_VULKAN_HWACCEL
848 *fmt++ = AV_PIX_FMT_VULKAN;
849#endif
850 if (CHROMA444(h)) {
851 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
852 *fmt++ = AV_PIX_FMT_GBRP12;
853 } else
854 *fmt++ = AV_PIX_FMT_YUV444P12;
855 } else if (CHROMA422(h))
856 *fmt++ = AV_PIX_FMT_YUV422P12;
857 else
858 *fmt++ = AV_PIX_FMT_YUV420P12;
859 break;
860 case 14:
861 if (CHROMA444(h)) {
862 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
863 *fmt++ = AV_PIX_FMT_GBRP14;
864 } else
865 *fmt++ = AV_PIX_FMT_YUV444P14;
866 } else if (CHROMA422(h))
867 *fmt++ = AV_PIX_FMT_YUV422P14;
868 else
869 *fmt++ = AV_PIX_FMT_YUV420P14;
870 break;
871 case 8:
872#if CONFIG_H264_VDPAU_HWACCEL
873 *fmt++ = AV_PIX_FMT_VDPAU;
874#endif
875#if CONFIG_H264_VULKAN_HWACCEL
876 *fmt++ = AV_PIX_FMT_VULKAN;
877#endif
878#if CONFIG_H264_NVDEC_HWACCEL
879 *fmt++ = AV_PIX_FMT_CUDA;
880#endif
881#if CONFIG_H264_NVDEC_CUARRAY_HWACCEL
882 *fmt++ = AV_PIX_FMT_CUARRAY;
883#endif
884#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
885 if (h->avctx->colorspace != AVCOL_SPC_RGB)
886 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
887#endif
888 if (CHROMA444(h)) {
889 if (h->avctx->colorspace == AVCOL_SPC_RGB)
890 *fmt++ = AV_PIX_FMT_GBRP;
891 else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
892 *fmt++ = AV_PIX_FMT_YUVJ444P;
893 else
894 *fmt++ = AV_PIX_FMT_YUV444P;
895 } else if (CHROMA422(h)) {
896 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
897 *fmt++ = AV_PIX_FMT_YUVJ422P;
898 else
899 *fmt++ = AV_PIX_FMT_YUV422P;
900 } else {
901#if CONFIG_H264_DXVA2_HWACCEL
902 *fmt++ = AV_PIX_FMT_DXVA2_VLD;
903#endif
904#if CONFIG_H264_D3D11VA_HWACCEL
905 *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
906 *fmt++ = AV_PIX_FMT_D3D11;
907#endif
908#if CONFIG_H264_D3D12VA_HWACCEL
909 *fmt++ = AV_PIX_FMT_D3D12;
910#endif
911#if CONFIG_H264_VAAPI_HWACCEL
912 *fmt++ = AV_PIX_FMT_VAAPI;
913#endif
914 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
915 *fmt++ = AV_PIX_FMT_YUVJ420P;
916 else
917 *fmt++ = AV_PIX_FMT_YUV420P;
918 }
919 break;
920 default:
921 av_log(h->avctx, AV_LOG_ERROR,
922 "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
923 return AVERROR_INVALIDDATA;
924 }
925
926 /* hwaccels take one self-contained slice NAL, not three */
927 if (data_partitioning) {
928 pix_fmts[0] = fmt[-1];
929 fmt = pix_fmts + 1;
930 }
931
932 *fmt = AV_PIX_FMT_NONE;
933
934 for (int i = 0; pix_fmts[i] != AV_PIX_FMT_NONE; i++)
935 if (pix_fmts[i] == h->avctx->pix_fmt && !force_callback)
936 return pix_fmts[i];
937 return ff_get_format(h->avctx, pix_fmts);
938}
939
940/* export coded and cropped frame dimensions to AVCodecContext */
941static void init_dimensions(H264Context *h)
942{
943 const SPS *sps = h->ps.sps;
944 int cr = sps->crop_right;
945 int cl = sps->crop_left;
946 int ct = sps->crop_top;
947 int cb = sps->crop_bottom;
948 int width = h->width - (cr + cl);
949 int height = h->height - (ct + cb);
950 av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
951 av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
952
953 /* handle container cropping */
954 if (h->width_from_caller > 0 && h->height_from_caller > 0 &&
955 !sps->crop_top && !sps->crop_left &&
956 FFALIGN(h->width_from_caller, 16) == FFALIGN(width, 16) &&
957 FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
958 h->width_from_caller <= width &&
959 h->height_from_caller <= height) {
960 width = h->width_from_caller;
961 height = h->height_from_caller;
962 cl = 0;
963 ct = 0;
964 cr = h->width - width;
965 cb = h->height - height;
966 } else {
967 h->width_from_caller = 0;
968 h->height_from_caller = 0;
969 }
970
971 h->avctx->coded_width = h->width;
972 h->avctx->coded_height = h->height;
973 h->avctx->width = width;
974 h->avctx->height = height;
975 h->crop_right = cr;
976 h->crop_left = cl;
977 h->crop_top = ct;
978 h->crop_bottom = cb;
979}
980
981static int h264_slice_header_init(H264Context *h)
982{
983 const SPS *sps = h->ps.sps;
984 int i, ret;
985
986 if (!sps) {
987 ret = AVERROR_INVALIDDATA;
988 goto fail;
989 }
990
991 ff_set_sar(h->avctx, sps->vui.sar);
992 av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
993 &h->chroma_x_shift, &h->chroma_y_shift);
994
995 if (sps->timing_info_present_flag) {
996 int64_t den = sps->time_scale;
997 if (h->x264_build < 44U)
998 den *= 2;
999 av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
1000 sps->num_units_in_tick * 2, den, 1 << 30);
1001 }
1002
1003 ff_h264_free_tables(h);
1004
1005 h->first_field = 0;
1006 h->prev_interlaced_frame = 1;
1007
1008 init_scan_tables(h);
1009 ret = ff_h264_alloc_tables(h);
1010 if (ret < 0) {
1011 av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
1012 goto fail;
1013 }
1014
1015 if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
1016 sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
1017 ) {
1018 av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
1019 sps->bit_depth_luma);
1020 ret = AVERROR_INVALIDDATA;
1021 goto fail;
1022 }
1023
1024 h->cur_bit_depth_luma =
1025 h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
1026 h->cur_chroma_format_idc = sps->chroma_format_idc;
1027 h->pixel_shift = sps->bit_depth_luma > 8;
1028 h->chroma_format_idc = sps->chroma_format_idc;
1029 h->bit_depth_luma = sps->bit_depth_luma;
1030
1031 ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
1032 sps->chroma_format_idc);
1033 ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
1034 ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
1035 ff_h264_pred_init(&h->hpc, AV_CODEC_ID_H264, sps->bit_depth_luma,
1036 sps->chroma_format_idc);
1037 ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
1038
1039 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
1040 ff_h264_slice_context_init(h, &h->slice_ctx[0]);
1041 } else {
1042 for (i = 0; i < h->nb_slice_ctx; i++) {
1043 H264SliceContext *sl = &h->slice_ctx[i];
1044
1045 sl->h264 = h;
1046 sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
1047 sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride;
1048 sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride;
1049
1050 ff_h264_slice_context_init(h, sl);
1051 }
1052 }
1053
1054 h->context_initialized = 1;
1055
1056 return 0;
1057fail:
1058 ff_h264_free_tables(h);
1059 h->context_initialized = 0;
1060 return ret;
1061}
1062
1063static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1064{
1065 switch (a) {
1066 case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1067 case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1068 case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1069 default:
1070 return a;
1071 }
1072}
1073
1074static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1075{
1076 const SPS *sps;
1077 int needs_reinit = 0, must_reinit, ret;
1078
1079 if (first_slice)
1080 av_refstruct_replace(&h->ps.pps, h->ps.pps_list[sl->pps_id]);
1081
1082 if (h->ps.sps != h->ps.pps->sps) {
1083 h->ps.sps = h->ps.pps->sps;
1084
1085 if (h->mb_width != h->ps.sps->mb_width ||
1086 h->mb_height != h->ps.sps->mb_height ||
1087 h->cur_bit_depth_luma != h->ps.sps->bit_depth_luma ||
1088 h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1089 )
1090 needs_reinit = 1;
1091
1092 if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||
1093 h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1094 needs_reinit = 1;
1095 }
1096 sps = h->ps.sps;
1097
1098 must_reinit = (h->context_initialized &&
1099 ( 16*sps->mb_width != h->avctx->coded_width
1100 || 16*sps->mb_height != h->avctx->coded_height
1101 || h->cur_bit_depth_luma != sps->bit_depth_luma
1102 || h->cur_chroma_format_idc != sps->chroma_format_idc
1103 || h->mb_width != sps->mb_width
1104 || h->mb_height != sps->mb_height
1105 ));
1106 if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1107 || (non_j_pixfmt(h->avctx->pix_fmt) !=
1108 non_j_pixfmt(get_pixel_format(h, 0, sl->data_partitioning))))
1109 must_reinit = 1;
1110
1111 if (first_slice && av_cmp_q(sps->vui.sar, h->avctx->sample_aspect_ratio))
1112 must_reinit = 1;
1113
1114 if (!h->setup_finished) {
1115 h->avctx->profile = ff_h264_get_profile(sps);
1116 h->avctx->level = sps->level_idc;
1117 h->avctx->refs = sps->ref_frame_count;
1118
1119 h->mb_width = sps->mb_width;
1120 h->mb_height = sps->mb_height;
1121 h->mb_num = h->mb_width * h->mb_height;
1122 h->mb_stride = h->mb_width + 1;
1123
1124 h->b_stride = h->mb_width * 4;
1125
1126 h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1127
1128 h->width = 16 * h->mb_width;
1129 h->height = 16 * h->mb_height;
1130
1131 init_dimensions(h);
1132
1133 if (sps->vui.video_signal_type_present_flag) {
1134 h->avctx->color_range = sps->vui.video_full_range_flag > 0 ? AVCOL_RANGE_JPEG
1135 : AVCOL_RANGE_MPEG;
1136 if (sps->vui.colour_description_present_flag) {
1137 if (h->avctx->colorspace != sps->vui.matrix_coeffs)
1138 needs_reinit = 1;
1139 h->avctx->color_primaries = sps->vui.colour_primaries;
1140 h->avctx->color_trc = sps->vui.transfer_characteristics;
1141 h->avctx->colorspace = sps->vui.matrix_coeffs;
1142 }
1143 }
1144
1145 if (h->sei.common.alternative_transfer.present &&
1146 av_color_transfer_name(h->sei.common.alternative_transfer.preferred_transfer_characteristics) &&
1147 h->sei.common.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1148 h->avctx->color_trc = h->sei.common.alternative_transfer.preferred_transfer_characteristics;
1149 }
1150 }
1151 h->avctx->chroma_sample_location = sps->vui.chroma_location;
1152
1153 if (!h->context_initialized || must_reinit || needs_reinit) {
1154 int flush_changes = h->context_initialized;
1155 h->context_initialized = 0;
1156 if (sl != h->slice_ctx) {
1157 av_log(h->avctx, AV_LOG_ERROR,
1158 "changing width %d -> %d / height %d -> %d on "
1159 "slice %d\n",
1160 h->width, h->avctx->coded_width,
1161 h->height, h->avctx->coded_height,
1162 h->current_slice + 1);
1163 return AVERROR_INVALIDDATA;
1164 }
1165
1166 av_assert1(first_slice);
1167
1168 if (flush_changes)
1169 ff_h264_flush_change(h);
1170
1171 if ((ret = get_pixel_format(h, must_reinit || needs_reinit,
1172 sl->data_partitioning)) < 0)
1173 return ret;
1174 h->avctx->pix_fmt = ret;
1175
1176 av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1177 "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1178
1179 if ((ret = h264_slice_header_init(h)) < 0) {
1180 av_log(h->avctx, AV_LOG_ERROR,
1181 "h264_slice_header_init() failed\n");
1182 return ret;
1183 }
1184 }
1185
1186 return 0;
1187}
1188
1189static int h264_export_frame_props(H264Context *h)
1190{
1191 const SPS *sps = h->ps.sps;
1192 H264Picture *cur = h->cur_pic_ptr;
1193 AVFrame *out = cur->f;
1194 int interlaced_frame = 0, top_field_first = 0;
1195 int ret;
1196
1197 out->flags &= ~AV_FRAME_FLAG_INTERLACED;
1198 out->repeat_pict = 0;
1199
1200 /* Signal interlacing information externally. */
1201 /* Prioritize picture timing SEI information over used
1202 * decoding process if it exists. */
1203 if (h->sei.picture_timing.present) {
1204 int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1205 h->avctx);
1206 if (ret < 0) {
1207 av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1208 if (h->avctx->err_recognition & AV_EF_EXPLODE)
1209 return ret;
1210 h->sei.picture_timing.present = 0;
1211 }
1212 }
1213
1214 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1215 const H264SEIPictureTiming *pt = &h->sei.picture_timing;
1216 switch (pt->pic_struct) {
1217 case H264_SEI_PIC_STRUCT_FRAME:
1218 break;
1219 case H264_SEI_PIC_STRUCT_TOP_FIELD:
1220 case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1221 interlaced_frame = 1;
1222 break;
1223 case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1224 case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1225 if (FIELD_OR_MBAFF_PICTURE(h))
1226 interlaced_frame = 1;
1227 else
1228 // try to flag soft telecine progressive
1229 interlaced_frame = !!h->prev_interlaced_frame;
1230 break;
1231 case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1232 case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1233 /* Signal the possibility of telecined film externally
1234 * (pic_struct 5,6). From these hints, let the applications
1235 * decide if they apply deinterlacing. */
1236 out->repeat_pict = 1;
1237 break;
1238 case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1239 out->repeat_pict = 2;
1240 break;
1241 case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1242 out->repeat_pict = 4;
1243 break;
1244 }
1245
1246 if ((pt->ct_type & 3) &&
1247 pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1248 interlaced_frame = ((pt->ct_type & (1 << 1)) != 0);
1249 } else {
1250 /* Derive interlacing flag from used decoding process. */
1251 interlaced_frame = !!FIELD_OR_MBAFF_PICTURE(h);
1252 }
1253 h->prev_interlaced_frame = interlaced_frame;
1254
1255 if (cur->field_poc[0] != cur->field_poc[1]) {
1256 /* Derive top_field_first from field pocs. */
1257 top_field_first = (cur->field_poc[0] < cur->field_poc[1]);
1258 } else {
1259 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1260 /* Use picture timing SEI information. Even if it is a
1261 * information of a past frame, better than nothing. */
1262 if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1263 h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1264 top_field_first = 1;
1265 } else if (interlaced_frame) {
1266 /* Default to top field first when pic_struct_present_flag
1267 * is not set but interlaced frame detected */
1268 top_field_first = 1;
1269 } // else
1270 /* Most likely progressive */
1271 }
1272
1273 out->flags |= (AV_FRAME_FLAG_INTERLACED * interlaced_frame) |
1274 (AV_FRAME_FLAG_TOP_FIELD_FIRST * top_field_first);
1275
1276 ret = ff_h2645_sei_to_frame(out, &h->sei.common, AV_CODEC_ID_H264, h->avctx,
1277 &sps->vui, sps->bit_depth_luma, sps->bit_depth_chroma,
1278 cur->poc + (unsigned)(h->poc_offset << 5));
1279 if (ret < 0)
1280 return ret;
1281
1282 if (h->sei.picture_timing.timecode_cnt > 0) {
1283 uint32_t *tc_sd;
1284 char tcbuf[AV_TIMECODE_STR_SIZE];
1285 AVFrameSideData *tcside;
1286 ret = ff_frame_new_side_data(h->avctx, out, AV_FRAME_DATA_S12M_TIMECODE,
1287 sizeof(uint32_t)*4, &tcside);
1288 if (ret < 0)
1289 return ret;
1290
1291 if (tcside) {
1292 tc_sd = (uint32_t*)tcside->data;
1293 tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1294
1295 for (int i = 0; i < tc_sd[0]; i++) {
1296 int drop = h->sei.picture_timing.timecode[i].dropframe;
1297 int hh = h->sei.picture_timing.timecode[i].hours;
1298 int mm = h->sei.picture_timing.timecode[i].minutes;
1299 int ss = h->sei.picture_timing.timecode[i].seconds;
1300 int ff = h->sei.picture_timing.timecode[i].frame;
1301
1302 tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1303 av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1304 av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1305 }
1306 }
1307 h->sei.picture_timing.timecode_cnt = 0;
1308 }
1309
1310 return 0;
1311}
1312
1313static int h264_select_output_frame(H264Context *h)
1314{
1315 const SPS *sps = h->ps.sps;
1316 H264Picture *out = h->cur_pic_ptr;
1317 H264Picture *cur = h->cur_pic_ptr;
1318 int i, pics, out_of_order, out_idx;
1319
1320 cur->mmco_reset = h->mmco_reset;
1321 h->mmco_reset = 0;
1322
1323 if (sps->bitstream_restriction_flag ||
1324 h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1325 h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1326 }
1327
1328 for (i = 0; 1; i++) {
1329 if(i == H264_MAX_DPB_FRAMES || cur->poc < h->last_pocs[i]){
1330 if(i)
1331 h->last_pocs[i-1] = cur->poc;
1332 break;
1333 } else if(i) {
1334 h->last_pocs[i-1]= h->last_pocs[i];
1335 }
1336 }
1337 out_of_order = H264_MAX_DPB_FRAMES - i;
1338 if( cur->f->pict_type == AV_PICTURE_TYPE_B
1339 || (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))
1340 out_of_order = FFMAX(out_of_order, 1);
1341 if (out_of_order == H264_MAX_DPB_FRAMES) {
1342 av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1343 for (i = 1; i < H264_MAX_DPB_FRAMES; i++)
1344 h->last_pocs[i] = INT_MIN;
1345 h->last_pocs[0] = cur->poc;
1346 cur->mmco_reset = 1;
1347 } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1348 int loglevel = h->avctx->frame_num > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1349 av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1350 h->avctx->has_b_frames = out_of_order;
1351 }
1352
1353 pics = 0;
1354 while (h->delayed_pic[pics])
1355 pics++;
1356
1357 av_assert0(pics <= H264_MAX_DPB_FRAMES);
1358
1359 h->delayed_pic[pics++] = cur;
1360 if (cur->reference == 0)
1361 cur->reference = DELAYED_PIC_REF;
1362
1363 out = h->delayed_pic[0];
1364 out_idx = 0;
1365 for (i = 1; h->delayed_pic[i] &&
1366 !(h->delayed_pic[i]->f->flags & AV_FRAME_FLAG_KEY) &&
1367 !h->delayed_pic[i]->mmco_reset;
1368 i++)
1369 if (h->delayed_pic[i]->poc < out->poc) {
1370 out = h->delayed_pic[i];
1371 out_idx = i;
1372 }
1373 if (h->avctx->has_b_frames == 0 &&
1374 ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset))
1375 h->next_outputed_poc = INT_MIN;
1376 out_of_order = out->poc < h->next_outputed_poc;
1377
1378 if (out_of_order || pics > h->avctx->has_b_frames) {
1379 out->reference &= ~DELAYED_PIC_REF;
1380 for (i = out_idx; h->delayed_pic[i]; i++)
1381 h->delayed_pic[i] = h->delayed_pic[i + 1];
1382 }
1383 if (!out_of_order && pics > h->avctx->has_b_frames) {
1384 h->next_output_pic = out;
1385 if (out_idx == 0 && h->delayed_pic[0] && ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset)) {
1386 h->next_outputed_poc = INT_MIN;
1387 } else
1388 h->next_outputed_poc = out->poc;
1389
1390 // We have reached an recovery point and all frames after it in
1391 // display order are "recovered".
1392 h->frame_recovered |= out->recovered;
1393
1394 out->recovered |= h->frame_recovered & FRAME_RECOVERED_SEI;
1395
1396 if (!out->recovered) {
1397 if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1398 !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1399 h->next_output_pic = NULL;
1400 } else {
1401 out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1402 }
1403 }
1404 } else {
1405 av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1406 }
1407
1408 return 0;
1409}
1410
1411/* This function is called right after decoding the slice header for a first
1412 * slice in a field (or a frame). It decides whether we are decoding a new frame
1413 * or a second field in a pair and does the necessary setup.
1414 */
1415static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1416 const H2645NAL *nal, int first_slice)
1417{
1418 int i;
1419 const SPS *sps;
1420
1421 int last_pic_structure, last_pic_droppable, ret;
1422
1423 ret = h264_init_ps(h, sl, first_slice);
1424 if (ret < 0)
1425 return ret;
1426
1427 sps = h->ps.sps;
1428
1429 if (sps->bitstream_restriction_flag &&
1430 h->avctx->has_b_frames < sps->num_reorder_frames) {
1431 h->avctx->has_b_frames = sps->num_reorder_frames;
1432 }
1433
1434 last_pic_droppable = h->droppable;
1435 last_pic_structure = h->picture_structure;
1436 h->droppable = (nal->ref_idc == 0);
1437 h->picture_structure = sl->picture_structure;
1438
1439 h->poc.frame_num = sl->frame_num;
1440 h->poc.poc_lsb = sl->poc_lsb;
1441 h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1442 h->poc.delta_poc[0] = sl->delta_poc[0];
1443 h->poc.delta_poc[1] = sl->delta_poc[1];
1444
1445 if (nal->type == H264_NAL_IDR_SLICE)
1446 h->poc_offset = sl->idr_pic_id;
1447 else if (h->picture_intra_only)
1448 h->poc_offset = 0;
1449
1450 /* Shorten frame num gaps so we don't have to allocate reference
1451 * frames just to throw them away */
1452 if (h->poc.frame_num != h->poc.prev_frame_num) {
1453 int unwrap_prev_frame_num = h->poc.prev_frame_num;
1454 int max_frame_num = 1 << sps->log2_max_frame_num;
1455
1456 if (unwrap_prev_frame_num > h->poc.frame_num)
1457 unwrap_prev_frame_num -= max_frame_num;
1458
1459 if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1460 unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1461 if (unwrap_prev_frame_num < 0)
1462 unwrap_prev_frame_num += max_frame_num;
1463
1464 h->poc.prev_frame_num = unwrap_prev_frame_num;
1465 }
1466 }
1467
1468 /* See if we have a decoded first field looking for a pair...
1469 * Here, we're using that to see if we should mark previously
1470 * decode frames as "finished".
1471 * We have to do that before the "dummy" in-between frame allocation,
1472 * since that can modify h->cur_pic_ptr. */
1473 if (h->first_field) {
1474 int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1475 av_assert0(h->cur_pic_ptr);
1476 av_assert0(h->cur_pic_ptr->f->buf[0]);
1477 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1478
1479 /* Mark old field/frame as completed */
1480 if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1481 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1482 }
1483
1484 /* figure out if we have a complementary field pair */
1485 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1486 /* Previous field is unmatched. Don't display it, but let it
1487 * remain for reference if marked as such. */
1488 if (last_pic_structure != PICT_FRAME) {
1489 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1490 last_pic_structure == PICT_TOP_FIELD);
1491 }
1492 } else {
1493 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1494 /* This and previous field were reference, but had
1495 * different frame_nums. Consider this field first in
1496 * pair. Throw away previous field except for reference
1497 * purposes. */
1498 if (last_pic_structure != PICT_FRAME) {
1499 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1500 last_pic_structure == PICT_TOP_FIELD);
1501 }
1502 } else {
1503 /* Second field in complementary pair */
1504 if (!((last_pic_structure == PICT_TOP_FIELD &&
1505 h->picture_structure == PICT_BOTTOM_FIELD) ||
1506 (last_pic_structure == PICT_BOTTOM_FIELD &&
1507 h->picture_structure == PICT_TOP_FIELD))) {
1508 av_log(h->avctx, AV_LOG_ERROR,
1509 "Invalid field mode combination %d/%d\n",
1510 last_pic_structure, h->picture_structure);
1511 h->picture_structure = last_pic_structure;
1512 h->droppable = last_pic_droppable;
1513 return AVERROR_INVALIDDATA;
1514 } else if (last_pic_droppable != h->droppable) {
1515 avpriv_request_sample(h->avctx,
1516 "Found reference and non-reference fields in the same frame, which");
1517 h->picture_structure = last_pic_structure;
1518 h->droppable = last_pic_droppable;
1519 return AVERROR_PATCHWELCOME;
1520 }
1521 }
1522 }
1523 }
1524
1525 while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1526 h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1527 const H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1528 av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1529 h->poc.frame_num, h->poc.prev_frame_num);
1530 if (!sps->gaps_in_frame_num_allowed_flag)
1531 for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1532 h->last_pocs[i] = INT_MIN;
1533 ret = h264_frame_start(h);
1534 if (ret < 0) {
1535 h->first_field = 0;
1536 return ret;
1537 }
1538
1539 h->poc.prev_frame_num++;
1540 h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num;
1541 h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1542 h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1543 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1544 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1545
1546 h->explicit_ref_marking = 0;
1547 ret = ff_h264_execute_ref_pic_marking(h);
1548 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1549 return ret;
1550 /* Error concealment: If a ref is missing, copy the previous ref
1551 * in its place.
1552 * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1553 * many assumptions about there being no actual duplicates.
1554 * FIXME: This does not copy padding for out-of-frame motion
1555 * vectors. Given we are concealing a lost frame, this probably
1556 * is not noticeable by comparison, but it should be fixed. */
1557 if (h->short_ref_count) {
1558 int c[4] = {
1559 1<<(h->ps.sps->bit_depth_luma-1),
1560 1<<(h->ps.sps->bit_depth_chroma-1),
1561 1<<(h->ps.sps->bit_depth_chroma-1),
1562 -1
1563 };
1564
1565 if (prev &&
1566 h->short_ref[0]->f->width == prev->f->width &&
1567 h->short_ref[0]->f->height == prev->f->height &&
1568 h->short_ref[0]->f->format == prev->f->format) {
1569 ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1570 if (prev->field_picture)
1571 ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1572 ff_thread_release_ext_buffer(&h->short_ref[0]->tf);
1573 h->short_ref[0]->tf.f = h->short_ref[0]->f;
1574 ret = ff_thread_ref_frame(&h->short_ref[0]->tf, &prev->tf);
1575 if (ret < 0)
1576 return ret;
1577 h->short_ref[0]->poc = prev->poc + 2U;
1578 h->short_ref[0]->gray = prev->gray;
1579 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 0);
1580 if (h->short_ref[0]->field_picture)
1581 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 1);
1582 } else if (!h->frame_recovered) {
1583 if (!h->avctx->hwaccel && !ff_h264_skip_all_pixels(h->avctx))
1584 color_frame(h->short_ref[0]->f, c);
1585 h->short_ref[0]->gray = 1;
1586 }
1587 h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1588 }
1589 }
1590
1591 /* See if we have a decoded first field looking for a pair...
1592 * We're using that to see whether to continue decoding in that
1593 * frame, or to allocate a new one. */
1594 if (h->first_field) {
1595 av_assert0(h->cur_pic_ptr);
1596 av_assert0(h->cur_pic_ptr->f->buf[0]);
1597 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1598
1599 /* figure out if we have a complementary field pair */
1600 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1601 /* Previous field is unmatched. Don't display it, but let it
1602 * remain for reference if marked as such. */
1603 h->missing_fields ++;
1604 h->cur_pic_ptr = NULL;
1605 h->first_field = FIELD_PICTURE(h);
1606 } else {
1607 h->missing_fields = 0;
1608 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1609 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1610 h->picture_structure==PICT_BOTTOM_FIELD);
1611 /* This and the previous field had different frame_nums.
1612 * Consider this field first in pair. Throw away previous
1613 * one except for reference purposes. */
1614 h->first_field = 1;
1615 h->cur_pic_ptr = NULL;
1616 } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1617 /* This frame was already output, we cannot draw into it
1618 * anymore.
1619 */
1620 h->first_field = 1;
1621 h->cur_pic_ptr = NULL;
1622 } else {
1623 /* Second field in complementary pair */
1624 h->first_field = 0;
1625 }
1626 }
1627 } else {
1628 /* Frame or first field in a potentially complementary pair */
1629 h->first_field = FIELD_PICTURE(h);
1630 }
1631
1632 if (!FIELD_PICTURE(h) || h->first_field) {
1633 if (h264_frame_start(h) < 0) {
1634 h->first_field = 0;
1635 return AVERROR_INVALIDDATA;
1636 }
1637 } else {
1638 int field = h->picture_structure == PICT_BOTTOM_FIELD;
1639 release_unused_pictures(h, 0);
1640 h->cur_pic_ptr->tf.owner[field] = h->avctx;
1641 /* h264_frame_start(), which clears this for every other picture, is
1642 * not called for a second field. */
1643 if (CONFIG_ERROR_RESILIENCE)
1644 ff_h264_set_erpic(&h->er.cur_pic, NULL);
1645 }
1646 /* Some macroblocks can be accessed before they're available in case
1647 * of lost slices, MBAFF or threading. */
1648 if (FIELD_PICTURE(h)) {
1649 for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1650 memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1651 } else {
1652 memset(h->slice_table, -1,
1653 (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1654 }
1655
1656 ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1657 h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1658 if (ret < 0)
1659 return ret;
1660
1661 memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1662 h->nb_mmco = sl->nb_mmco;
1663 h->explicit_ref_marking = sl->explicit_ref_marking;
1664
1665 h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1666
1667 if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1668 const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1669
1670 if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1671 h->valid_recovery_point = 1;
1672
1673 if ( h->recovery_frame < 0
1674 || av_zero_extend(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1675 h->recovery_frame = av_zero_extend(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1676
1677 if (!h->valid_recovery_point)
1678 h->recovery_frame = h->poc.frame_num;
1679 }
1680 }
1681
1682 h->cur_pic_ptr->f->flags |= AV_FRAME_FLAG_KEY * !!(nal->type == H264_NAL_IDR_SLICE);
1683
1684 if (nal->type == H264_NAL_IDR_SLICE) {
1685 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_IDR;
1686 // If we have an IDR, all frames after it in decoded order are
1687 // "recovered".
1688 h->frame_recovered |= FRAME_RECOVERED_IDR;
1689 }
1690
1691 if (h->recovery_frame == h->poc.frame_num && nal->ref_idc) {
1692 h->recovery_frame = -1;
1693 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_SEI;
1694 }
1695
1696#if 1
1697 h->cur_pic_ptr->recovered |= h->frame_recovered;
1698#else
1699 h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1700#endif
1701
1702 /* Set the frame properties/side data. Only done for the second field in
1703 * field coded frames, since some SEI information is present for each field
1704 * and is merged by the SEI parsing code. */
1705 if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1706 ret = h264_export_frame_props(h);
1707 if (ret < 0)
1708 return ret;
1709
1710 ret = h264_select_output_frame(h);
1711 if (ret < 0)
1712 return ret;
1713 }
1714
1715 return 0;
1716}
1717
1718static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1719 const H2645NAL *nal)
1720{
1721 const SPS *sps;
1722 const PPS *pps;
1723 int ret;
1724 unsigned int slice_type, tmp, i;
1725 int field_pic_flag, bottom_field_flag;
1726 int first_slice = sl == h->slice_ctx && !h->current_slice;
1727 int picture_structure;
1728
1729 if (first_slice)
1730 av_assert0(!h->setup_finished);
1731
1732 sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1733
1734 slice_type = get_ue_golomb_31(&sl->gb);
1735 if (slice_type > 9) {
1736 av_log(h->avctx, AV_LOG_ERROR,
1737 "slice type %d too large at %d\n",
1738 slice_type, sl->first_mb_addr);
1739 return AVERROR_INVALIDDATA;
1740 }
1741 if (slice_type > 4) {
1742 slice_type -= 5;
1743 sl->slice_type_fixed = 1;
1744 } else
1745 sl->slice_type_fixed = 0;
1746
1747 slice_type = ff_h264_golomb_to_pict_type[slice_type];
1748 sl->slice_type = slice_type;
1749 sl->slice_type_nos = slice_type & 3;
1750
1751 if (nal->type == H264_NAL_IDR_SLICE &&
1752 sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1753 av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1754 return AVERROR_INVALIDDATA;
1755 }
1756
1757 sl->pps_id = get_ue_golomb(&sl->gb);
1758 if (sl->pps_id >= MAX_PPS_COUNT) {
1759 av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1760 return AVERROR_INVALIDDATA;
1761 }
1762 if (!h->ps.pps_list[sl->pps_id]) {
1763 av_log(h->avctx, AV_LOG_ERROR,
1764 "non-existing PPS %u referenced\n",
1765 sl->pps_id);
1766 return AVERROR_INVALIDDATA;
1767 }
1768 pps = h->ps.pps_list[sl->pps_id];
1769 sps = pps->sps;
1770
1771 sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1772 if (!first_slice) {
1773 if (h->poc.frame_num != sl->frame_num) {
1774 av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1775 h->poc.frame_num, sl->frame_num);
1776 return AVERROR_INVALIDDATA;
1777 }
1778 }
1779
1780 sl->mb_mbaff = 0;
1781
1782 if (sps->frame_mbs_only_flag) {
1783 picture_structure = PICT_FRAME;
1784 } else {
1785 if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1786 av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1787 return -1;
1788 }
1789 field_pic_flag = get_bits1(&sl->gb);
1790 if (field_pic_flag) {
1791 bottom_field_flag = get_bits1(&sl->gb);
1792 picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1793 } else {
1794 picture_structure = PICT_FRAME;
1795 }
1796 }
1797 sl->picture_structure = picture_structure;
1798 sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1799
1800 if (picture_structure == PICT_FRAME) {
1801 sl->curr_pic_num = sl->frame_num;
1802 sl->max_pic_num = 1 << sps->log2_max_frame_num;
1803 } else {
1804 sl->curr_pic_num = 2 * sl->frame_num + 1;
1805 sl->max_pic_num = 1 << (sps->log2_max_frame_num + 1);
1806 }
1807
1808 if (nal->type == H264_NAL_IDR_SLICE) {
1809 unsigned idr_pic_id = get_ue_golomb_long(&sl->gb);
1810 if (idr_pic_id < 65536) {
1811 sl->idr_pic_id = idr_pic_id;
1812 } else
1813 av_log(h->avctx, AV_LOG_WARNING, "idr_pic_id is invalid\n");
1814 }
1815
1816 sl->poc_lsb = 0;
1817 sl->delta_poc_bottom = 0;
1818 if (sps->poc_type == 0) {
1819 sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1820
1821 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1822 sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1823 }
1824
1825 sl->delta_poc[0] = sl->delta_poc[1] = 0;
1826 if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1827 sl->delta_poc[0] = get_se_golomb(&sl->gb);
1828
1829 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1830 sl->delta_poc[1] = get_se_golomb(&sl->gb);
1831 }
1832
1833 sl->redundant_pic_count = 0;
1834 if (pps->redundant_pic_cnt_present)
1835 sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1836
1837 if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1838 sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1839
1840 ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1841 &sl->gb, pps, sl->slice_type_nos,
1842 picture_structure, h->avctx);
1843 if (ret < 0)
1844 return ret;
1845
1846 if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1847 ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1848 if (ret < 0) {
1849 sl->ref_count[1] = sl->ref_count[0] = 0;
1850 return ret;
1851 }
1852 }
1853
1854 sl->pwt.use_weight = 0;
1855 for (i = 0; i < 2; i++) {
1856 sl->pwt.luma_weight_flag[i] = 0;
1857 sl->pwt.chroma_weight_flag[i] = 0;
1858 }
1859 if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1860 (pps->weighted_bipred_idc == 1 &&
1861 sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1862 ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1863 sl->slice_type_nos, &sl->pwt,
1864 picture_structure, h->avctx);
1865 if (ret < 0)
1866 return ret;
1867 }
1868
1869 sl->explicit_ref_marking = 0;
1870 if (nal->ref_idc) {
1871 ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1872 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1873 return AVERROR_INVALIDDATA;
1874 }
1875
1876 if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1877 tmp = get_ue_golomb_31(&sl->gb);
1878 if (tmp > 2) {
1879 av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1880 return AVERROR_INVALIDDATA;
1881 }
1882 sl->cabac_init_idc = tmp;
1883 }
1884
1885 sl->last_qscale_diff = 0;
1886 tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1887 if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1888 av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1889 return AVERROR_INVALIDDATA;
1890 }
1891 sl->qscale = tmp;
1892 sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1893 sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1894 // FIXME qscale / qp ... stuff
1895 if (sl->slice_type == AV_PICTURE_TYPE_SP)
1896 get_bits1(&sl->gb); /* sp_for_switch_flag */
1897 if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1898 sl->slice_type == AV_PICTURE_TYPE_SI)
1899 get_se_golomb(&sl->gb); /* slice_qs_delta */
1900
1901 sl->deblocking_filter = 1;
1902 sl->slice_alpha_c0_offset = 0;
1903 sl->slice_beta_offset = 0;
1904 if (pps->deblocking_filter_parameters_present) {
1905 tmp = get_ue_golomb_31(&sl->gb);
1906 if (tmp > 2) {
1907 av_log(h->avctx, AV_LOG_ERROR,
1908 "deblocking_filter_idc %u out of range\n", tmp);
1909 return AVERROR_INVALIDDATA;
1910 }
1911 sl->deblocking_filter = tmp;
1912 if (sl->deblocking_filter < 2)
1913 sl->deblocking_filter ^= 1; // 1<->0
1914
1915 if (sl->deblocking_filter) {
1916 int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1917 int slice_beta_offset_div2 = get_se_golomb(&sl->gb);
1918 if (slice_alpha_c0_offset_div2 > 6 ||
1919 slice_alpha_c0_offset_div2 < -6 ||
1920 slice_beta_offset_div2 > 6 ||
1921 slice_beta_offset_div2 < -6) {
1922 av_log(h->avctx, AV_LOG_ERROR,
1923 "deblocking filter parameters %d %d out of range\n",
1924 slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1925 return AVERROR_INVALIDDATA;
1926 }
1927 sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1928 sl->slice_beta_offset = slice_beta_offset_div2 * 2;
1929 }
1930 }
1931
1932 return 0;
1933}
1934
1935/* do all the per-slice initialization needed before we can start decoding the
1936 * actual MBs */
1937static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1938 const H2645NAL *nal)
1939{
1940 int i, j, ret = 0;
1941
1942 if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1943 av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1944 return AVERROR_INVALIDDATA;
1945 }
1946
1947 av_assert1(h->mb_num == h->mb_width * h->mb_height);
1948 if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1949 sl->first_mb_addr >= h->mb_num) {
1950 av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1951 return AVERROR_INVALIDDATA;
1952 }
1953 sl->resync_mb_x = sl->mb_x = sl->first_mb_addr % h->mb_width;
1954 sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1955 FIELD_OR_MBAFF_PICTURE(h);
1956 if (h->picture_structure == PICT_BOTTOM_FIELD)
1957 sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1958 av_assert1(sl->mb_y < h->mb_height);
1959
1960 ret = ff_h264_build_ref_list(h, sl);
1961 if (ret < 0)
1962 return ret;
1963
1964 if (h->ps.pps->weighted_bipred_idc == 2 &&
1965 sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1966 implicit_weight_table(h, sl, -1);
1967 if (FRAME_MBAFF(h)) {
1968 implicit_weight_table(h, sl, 0);
1969 implicit_weight_table(h, sl, 1);
1970 }
1971 }
1972
1973 if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1974 ff_h264_direct_dist_scale_factor(h, sl);
1975 ff_h264_direct_ref_list_init(h, sl);
1976
1977 if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1978 (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1979 h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1980 (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1981 sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1982 (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
1983 sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1984 (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1985 nal->ref_idc == 0))
1986 sl->deblocking_filter = 0;
1987
1988 if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
1989 if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
1990 /* Cheat slightly for speed:
1991 * Do not bother to deblock across slices. */
1992 sl->deblocking_filter = 2;
1993 } else {
1994 h->postpone_filter = 1;
1995 }
1996 }
1997 sl->qp_thresh = 15 -
1998 FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
1999 FFMAX3(0,
2000 h->ps.pps->chroma_qp_index_offset[0],
2001 h->ps.pps->chroma_qp_index_offset[1]) +
2002 6 * (h->ps.sps->bit_depth_luma - 8);
2003
2004 // slice_table is uint16_t initialized to 0xFFFF as a sentinel.
2005 if (h->current_slice >= 0xFFFE) {
2006 av_log(h->avctx, AV_LOG_ERROR, "Too many slices (%d)\n", h->current_slice + 1);
2007 return AVERROR_PATCHWELCOME;
2008 }
2009
2010 sl->slice_num = ++h->current_slice;
2011
2012 if (sl->slice_num)
2013 h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2014 if ( h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2015 && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2016 && sl->slice_num >= MAX_SLICES) {
2017 //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2018 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);
2019 }
2020
2021 for (j = 0; j < 2; j++) {
2022 int id_list[16];
2023 int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2024 for (i = 0; i < 16; i++) {
2025 id_list[i] = 60;
2026 if (j < sl->list_count && i < sl->ref_count[j] &&
2027 sl->ref_list[j][i].parent->f->buf[0]) {
2028 int k;
2029 const AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2030 for (k = 0; k < h->short_ref_count; k++)
2031 if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2032 id_list[i] = k;
2033 break;
2034 }
2035 for (k = 0; k < h->long_ref_count; k++)
2036 if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2037 id_list[i] = h->short_ref_count + k;
2038 break;
2039 }
2040 }
2041 }
2042
2043 ref2frm[0] =
2044 ref2frm[1] = -1;
2045 for (i = 0; i < 16; i++)
2046 ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2047 ref2frm[18 + 0] =
2048 ref2frm[18 + 1] = -1;
2049 for (i = 16; i < 48; i++)
2050 ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2051 (sl->ref_list[j][i].reference & 3);
2052 }
2053
2054 if (sl->slice_type_nos == AV_PICTURE_TYPE_I) {
2055 h->cur_pic_ptr->gray = 0;
2056 h->non_gray = 1;
2057 } else {
2058 int gray = 0;
2059 for (j = 0; j < sl->list_count; j++) {
2060 for (i = 0; i < sl->ref_count[j]; i++) {
2061 gray |= sl->ref_list[j][i].parent->gray;
2062 }
2063 }
2064 h->cur_pic_ptr->gray = gray;
2065 }
2066
2067 if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2068 av_log(h->avctx, AV_LOG_DEBUG,
2069 "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",
2070 sl->slice_num,
2071 (h->picture_structure == PICT_FRAME ? 'F' : h->picture_structure == PICT_TOP_FIELD ? 'T' : 'B'),
2072 sl->mb_y * h->mb_width + sl->mb_x,
2073 av_get_picture_type_char(sl->slice_type),
2074 sl->slice_type_fixed ? " fix" : "",
2075 nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2076 h->poc.frame_num,
2077 h->cur_pic_ptr->field_poc[0],
2078 h->cur_pic_ptr->field_poc[1],
2079 sl->ref_count[0], sl->ref_count[1],
2080 sl->qscale,
2081 sl->deblocking_filter,
2082 sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2083 sl->pwt.use_weight,
2084 sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2085 sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2086 }
2087
2088 return 0;
2089}
2090
2091/* slice_id follows slice_header() in a partition A (7.3.2.9.1). */
2092static int h264_parse_slice_id(const H264Context *h, H264SliceContext *sl)
2093{
2094 const PPS *pps = h->ps.pps_list[sl->pps_id];
2095 const SPS *sps = pps->sps;
2096 unsigned nb_slice_ids = sps->mb_width * sps->mb_height;
2097
2098 if (pps->cabac) {
2099 av_log(h->avctx, AV_LOG_ERROR, "Data partitioning requires CAVLC\n");
2100 return AVERROR_INVALIDDATA;
2101 }
2102
2103 if (sl->picture_structure != PICT_FRAME || sps->mb_aff)
2104 nb_slice_ids /= 2;
2105
2106 sl->slice_id = get_ue_golomb_long(&sl->gb);
2107 if (sl->slice_id >= nb_slice_ids) {
2108 av_log(h->avctx, AV_LOG_ERROR, "slice_id %u out of range\n", sl->slice_id);
2109 return AVERROR_INVALIDDATA;
2110 }
2111
2112 sl->data_partitioning = 1;
2113
2114 return 0;
2115}
2116
2117int ff_h264_attach_slice_partition(const H264Context *h, H264SliceContext *sl,
2118 const H2645NAL *nal)
2119{
2120 const PPS *pps = h->ps.pps_list[sl->pps_id];
2121 GetBitContext gb = nal->gb;
2122 int redundant_pic_cnt = 0;
2123 unsigned slice_id;
2124
2125 if (!sl->data_partitioning)
2126 return AVERROR_INVALIDDATA;
2127
2128 slice_id = get_ue_golomb_long(&gb);
2129 if (pps->sps->residual_color_transform_flag)
2130 skip_bits(&gb, 2); // colour_plane_id
2131 if (pps->redundant_pic_cnt_present)
2132 redundant_pic_cnt = get_ue_golomb(&gb);
2133
2134 if (get_bits_left(&gb) < 0) {
2135 av_log(h->avctx, AV_LOG_ERROR, "Truncated slice data partition\n");
2136 return AVERROR_INVALIDDATA;
2137 }
2138
2139 /* 7.4.2.9.2: B and C repeat the slice_id and redundant_pic_cnt of their A. */
2140 if (slice_id != sl->slice_id || redundant_pic_cnt != sl->redundant_pic_count) {
2141 av_log(h->avctx, AV_LOG_WARNING, "Slice data partition %c does not "
2142 "match the preceding partition A\n",
2143 nal->type == H264_NAL_DPB ? 'B' : 'C');
2144 return AVERROR_INVALIDDATA;
2145 }
2146
2147 if (nal->type == H264_NAL_DPB) {
2148 sl->gb_dpb = gb;
2149 sl->dpb_available = 1;
2150 } else {
2151 sl->gb_dpc = gb;
2152 sl->dpc_available = 1;
2153 }
2154
2155 return 0;
2156}
2157
2158int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal,
2159 H264SliceContext **queued)
2160{
2161 H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2162 int first_slice = sl == h->slice_ctx && !h->current_slice;
2163 int ret;
2164
2165 *queued = NULL;
2166 sl->gb = nal->gb;
2167
2168 sl->data_partitioning = 0;
2169 sl->dpb_available = 0;
2170 sl->dpc_available = 0;
2171
2172 ret = h264_slice_header_parse(h, sl, nal);
2173 if (ret < 0)
2174 return ret;
2175
2176 if (nal->type == H264_NAL_DPA) {
2177 ret = h264_parse_slice_id(h, sl);
2178 if (ret < 0)
2179 return ret;
2180 }
2181
2182 // discard redundant pictures
2183 if (sl->redundant_pic_count > 0) {
2184 sl->ref_count[0] = sl->ref_count[1] = 0;
2185 return 0;
2186 }
2187
2188 if (sl->first_mb_addr == 0 || !h->current_slice) {
2189 if (h->setup_finished) {
2190 av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2191 return AVERROR_INVALIDDATA;
2192 }
2193 }
2194
2195 if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2196 if (h->current_slice) {
2197 // this slice starts a new field
2198 // first decode any pending queued slices
2199 if (h->nb_slice_ctx_queued) {
2200 H264SliceContext tmp_ctx;
2201
2202 ret = ff_h264_execute_decode_slices(h);
2203 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2204 return ret;
2205
2206 memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2207 memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2208 memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2209 sl = h->slice_ctx;
2210 }
2211
2212 if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2213 ret = ff_h264_field_end(h, h->slice_ctx, 1);
2214 if (ret < 0)
2215 return ret;
2216 } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type == H264_NAL_IDR_SLICE) {
2217 av_log(h->avctx, AV_LOG_WARNING, "Broken frame packetizing\n");
2218 ret = ff_h264_field_end(h, h->slice_ctx, 1);
2219 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2220 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2221 h->cur_pic_ptr = NULL;
2222 if (ret < 0)
2223 return ret;
2224 } else
2225 return AVERROR_INVALIDDATA;
2226 }
2227
2228 if (!h->first_field) {
2229 if (h->cur_pic_ptr && !h->droppable) {
2230 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2231 h->picture_structure == PICT_BOTTOM_FIELD);
2232 }
2233 h->cur_pic_ptr = NULL;
2234 }
2235 }
2236
2237 if (!h->current_slice)
2238 av_assert0(sl == h->slice_ctx);
2239
2240 if (h->current_slice == 0 && !h->first_field) {
2241 if (
2242 (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2243 (h->avctx->skip_frame >= AVDISCARD_BIDIR && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2244 (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2245 (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2246 h->avctx->skip_frame >= AVDISCARD_ALL) {
2247 return 0;
2248 }
2249 }
2250
2251 if (!first_slice) {
2252 const PPS *pps = h->ps.pps_list[sl->pps_id];
2253
2254 if (h->ps.pps->sps_id != pps->sps_id ||
2255 h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2256 (h->setup_finished && h->ps.pps != pps)*/) {
2257 av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2258 return AVERROR_INVALIDDATA;
2259 }
2260 if (h->ps.sps != pps->sps) {
2261 av_log(h->avctx, AV_LOG_ERROR,
2262 "SPS changed in the middle of the frame\n");
2263 return AVERROR_INVALIDDATA;
2264 }
2265 }
2266
2267 if (h->current_slice == 0) {
2268 ret = h264_field_start(h, sl, nal, first_slice);
2269 if (ret < 0)
2270 return ret;
2271 } else {
2272 if (h->picture_structure != sl->picture_structure ||
2273 h->droppable != (nal->ref_idc == 0)) {
2274 av_log(h->avctx, AV_LOG_ERROR,
2275 "Changing field mode (%d -> %d) between slices is not allowed\n",
2276 h->picture_structure, sl->picture_structure);
2277 return AVERROR_INVALIDDATA;
2278 } else if (!h->cur_pic_ptr) {
2279 av_log(h->avctx, AV_LOG_ERROR,
2280 "unset cur_pic_ptr on slice %d\n",
2281 h->current_slice + 1);
2282 return AVERROR_INVALIDDATA;
2283 }
2284 }
2285
2286 ret = h264_slice_init(h, sl, nal);
2287 if (ret < 0)
2288 return ret;
2289
2290 h->nb_slice_ctx_queued++;
2291 *queued = sl;
2292
2293 return 0;
2294}
2295
2296int ff_h264_get_slice_type(const H264SliceContext *sl)
2297{
2298 switch (sl->slice_type) {
2299 case AV_PICTURE_TYPE_P:
2300 return 0;
2301 case AV_PICTURE_TYPE_B:
2302 return 1;
2303 case AV_PICTURE_TYPE_I:
2304 return 2;
2305 case AV_PICTURE_TYPE_SP:
2306 return 3;
2307 case AV_PICTURE_TYPE_SI:
2308 return 4;
2309 default:
2310 return AVERROR_INVALIDDATA;
2311 }
2312}
2313
2314static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2315 H264SliceContext *sl,
2316 int mb_type, int top_xy,
2317 const int left_xy[LEFT_MBS],
2318 int top_type,
2319 const int left_type[LEFT_MBS],
2320 int mb_xy, int list)
2321{
2322 int b_stride = h->b_stride;
2323 int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2324 int8_t *ref_cache = &sl->ref_cache[list][scan8[0]];
2325 if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2326 if (USES_LIST(top_type, list)) {
2327 const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
2328 const int b8_xy = 4 * top_xy + 2;
2329 const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2330 AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2331 ref_cache[0 - 1 * 8] =
2332 ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2333 ref_cache[2 - 1 * 8] =
2334 ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2335 } else {
2336 AV_ZERO128(mv_dst - 1 * 8);
2337 AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2338 }
2339
2340 if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2341 if (USES_LIST(left_type[LTOP], list)) {
2342 const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
2343 const int b8_xy = 4 * left_xy[LTOP] + 1;
2344 const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2345 AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2346 AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2347 AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2348 AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2349 ref_cache[-1 + 0] =
2350 ref_cache[-1 + 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2351 ref_cache[-1 + 16] =
2352 ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2353 } else {
2354 AV_ZERO32(mv_dst - 1 + 0);
2355 AV_ZERO32(mv_dst - 1 + 8);
2356 AV_ZERO32(mv_dst - 1 + 16);
2357 AV_ZERO32(mv_dst - 1 + 24);
2358 ref_cache[-1 + 0] =
2359 ref_cache[-1 + 8] =
2360 ref_cache[-1 + 16] =
2361 ref_cache[-1 + 24] = LIST_NOT_USED;
2362 }
2363 }
2364 }
2365
2366 if (!USES_LIST(mb_type, list)) {
2367 fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2368 AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2369 AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2370 AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2371 AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2372 return;
2373 }
2374
2375 {
2376 const int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2377 const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2378 uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2379 uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2380 AV_WN32A(&ref_cache[0 * 8], ref01);
2381 AV_WN32A(&ref_cache[1 * 8], ref01);
2382 AV_WN32A(&ref_cache[2 * 8], ref23);
2383 AV_WN32A(&ref_cache[3 * 8], ref23);
2384 }
2385
2386 {
2387 int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2388 AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2389 AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2390 AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2391 AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2392 }
2393}
2394
2395/**
2396 * @return non zero if the loop filter can be skipped
2397 */
2398static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2399{
2400 const int mb_xy = sl->mb_xy;
2401 int top_xy, left_xy[LEFT_MBS];
2402 int top_type, left_type[LEFT_MBS];
2403 const uint8_t *nnz;
2404 uint8_t *nnz_cache;
2405
2406 top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2407
2408 left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2409 if (FRAME_MBAFF(h)) {
2410 const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2411 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2412 if (sl->mb_y & 1) {
2413 if (left_mb_field_flag != curr_mb_field_flag)
2414 left_xy[LTOP] -= h->mb_stride;
2415 } else {
2416 if (curr_mb_field_flag)
2417 top_xy += h->mb_stride &
2418 (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2419 if (left_mb_field_flag != curr_mb_field_flag)
2420 left_xy[LBOT] += h->mb_stride;
2421 }
2422 }
2423
2424 sl->top_mb_xy = top_xy;
2425 sl->left_mb_xy[LTOP] = left_xy[LTOP];
2426 sl->left_mb_xy[LBOT] = left_xy[LBOT];
2427 {
2428 /* For sufficiently low qp, filtering wouldn't do anything.
2429 * This is a conservative estimate: could also check beta_offset
2430 * and more accurate chroma_qp. */
2431 int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2432 int qp = h->cur_pic.qscale_table[mb_xy];
2433 if (qp <= qp_thresh &&
2434 (left_xy[LTOP] < 0 ||
2435 ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2436 (top_xy < 0 ||
2437 ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2438 if (!FRAME_MBAFF(h))
2439 return 1;
2440 if ((left_xy[LTOP] < 0 ||
2441 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2442 (top_xy < h->mb_stride ||
2443 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2444 return 1;
2445 }
2446 }
2447
2448 top_type = h->cur_pic.mb_type[top_xy];
2449 left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2450 left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2451 if (sl->deblocking_filter == 2) {
2452 if (h->slice_table[top_xy] != sl->slice_num)
2453 top_type = 0;
2454 if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2455 left_type[LTOP] = left_type[LBOT] = 0;
2456 } else {
2457 if (h->slice_table[top_xy] == 0xFFFF)
2458 top_type = 0;
2459 if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2460 left_type[LTOP] = left_type[LBOT] = 0;
2461 }
2462 sl->top_type = top_type;
2463 sl->left_type[LTOP] = left_type[LTOP];
2464 sl->left_type[LBOT] = left_type[LBOT];
2465
2466 if (IS_INTRA(mb_type))
2467 return 0;
2468
2469 fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2470 top_type, left_type, mb_xy, 0);
2471 if (sl->list_count == 2)
2472 fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2473 top_type, left_type, mb_xy, 1);
2474
2475 nnz = h->non_zero_count[mb_xy];
2476 nnz_cache = sl->non_zero_count_cache;
2477 AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2478 AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2479 AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2480 AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2481 sl->cbp = h->cbp_table[mb_xy];
2482
2483 if (top_type) {
2484 nnz = h->non_zero_count[top_xy];
2485 AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2486 }
2487
2488 if (left_type[LTOP]) {
2489 nnz = h->non_zero_count[left_xy[LTOP]];
2490 nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2491 nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2492 nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2493 nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2494 }
2495
2496 /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2497 * from what the loop filter needs */
2498 if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2499 if (IS_8x8DCT(top_type)) {
2500 nnz_cache[4 + 8 * 0] =
2501 nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2502 nnz_cache[6 + 8 * 0] =
2503 nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2504 }
2505 if (IS_8x8DCT(left_type[LTOP])) {
2506 nnz_cache[3 + 8 * 1] =
2507 nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2508 }
2509 if (IS_8x8DCT(left_type[LBOT])) {
2510 nnz_cache[3 + 8 * 3] =
2511 nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2512 }
2513
2514 if (IS_8x8DCT(mb_type)) {
2515 nnz_cache[scan8[0]] =
2516 nnz_cache[scan8[1]] =
2517 nnz_cache[scan8[2]] =
2518 nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2519
2520 nnz_cache[scan8[0 + 4]] =
2521 nnz_cache[scan8[1 + 4]] =
2522 nnz_cache[scan8[2 + 4]] =
2523 nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2524
2525 nnz_cache[scan8[0 + 8]] =
2526 nnz_cache[scan8[1 + 8]] =
2527 nnz_cache[scan8[2 + 8]] =
2528 nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2529
2530 nnz_cache[scan8[0 + 12]] =
2531 nnz_cache[scan8[1 + 12]] =
2532 nnz_cache[scan8[2 + 12]] =
2533 nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2534 }
2535 }
2536
2537 return 0;
2538}
2539
2540static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2541{
2542 uint8_t *dest_y, *dest_cb, *dest_cr;
2543 int linesize, uvlinesize, mb_x, mb_y;
2544 const int end_mb_y = sl->mb_y + FRAME_MBAFF(h);
2545 const int old_slice_type = sl->slice_type;
2546 const int pixel_shift = h->pixel_shift;
2547 const int block_h = 16 >> h->chroma_y_shift;
2548
2549 if (h->postpone_filter)
2550 return;
2551
2552 if (sl->deblocking_filter) {
2553 for (mb_x = start_x; mb_x < end_x; mb_x++)
2554 for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2555 int mb_xy, mb_type;
2556 mb_xy = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2557 mb_type = h->cur_pic.mb_type[mb_xy];
2558
2559 if (FRAME_MBAFF(h))
2560 sl->mb_mbaff =
2561 sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2562
2563 sl->mb_x = mb_x;
2564 sl->mb_y = mb_y;
2565 dest_y = h->cur_pic.f->data[0] +
2566 ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2567 dest_cb = h->cur_pic.f->data[1] +
2568 (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2569 mb_y * sl->uvlinesize * block_h;
2570 dest_cr = h->cur_pic.f->data[2] +
2571 (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2572 mb_y * sl->uvlinesize * block_h;
2573 // FIXME simplify above
2574
2575 if (MB_FIELD(sl)) {
2576 linesize = sl->mb_linesize = sl->linesize * 2;
2577 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2578 if (mb_y & 1) { // FIXME move out of this function?
2579 dest_y -= sl->linesize * 15;
2580 dest_cb -= sl->uvlinesize * (block_h - 1);
2581 dest_cr -= sl->uvlinesize * (block_h - 1);
2582 }
2583 } else {
2584 linesize = sl->mb_linesize = sl->linesize;
2585 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2586 }
2587 backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2588 uvlinesize, 0);
2589 if (fill_filter_caches(h, sl, mb_type))
2590 continue;
2591 sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2592 sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2593
2594 if (FRAME_MBAFF(h)) {
2595 ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2596 linesize, uvlinesize);
2597 } else {
2598 ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2599 dest_cr, linesize, uvlinesize);
2600 }
2601 }
2602 }
2603 sl->slice_type = old_slice_type;
2604 sl->mb_x = end_x;
2605 sl->mb_y = end_mb_y - FRAME_MBAFF(h);
2606 sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2607 sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2608}
2609
2610static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2611{
2612 const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2613 int mb_type = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2614 h->cur_pic.mb_type[mb_xy - 1] :
2615 (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2616 h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2617 sl->mb_mbaff = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2618}
2619
2620/**
2621 * Draw edges and report progress for the last MB row.
2622 */
2623static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2624{
2625 int top = 16 * (sl->mb_y >> FIELD_PICTURE(h));
2626 int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
2627 int height = 16 << FRAME_MBAFF(h);
2628 int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2629
2630 if (sl->deblocking_filter) {
2631 if ((top + height) >= pic_height)
2632 height += deblock_border;
2633 top -= deblock_border;
2634 }
2635
2636 if (top >= pic_height || (top + height) < 0)
2637 return;
2638
2639 height = FFMIN(height, pic_height - top);
2640 if (top < 0) {
2641 height = top + height;
2642 top = 0;
2643 }
2644
2645 ff_h264_draw_horiz_band(h, sl, top, height);
2646
2647 if (h->droppable || h->er.error_occurred)
2648 return;
2649
2650 ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2651 h->picture_structure == PICT_BOTTOM_FIELD);
2652}
2653
2654static void er_add_slice(H264SliceContext *sl,
2655 int startx, int starty,
2656 int endx, int endy, int status)
2657{
2658 if (!sl->h264->enable_er)
2659 return;
2660
2661 if (CONFIG_ERROR_RESILIENCE) {
2662 ff_er_add_slice(sl->er, startx, starty, endx, endy, status);
2663 }
2664}
2665
2666static int decode_slice(struct AVCodecContext *avctx, void *arg)
2667{
2668 H264SliceContext *sl = arg;
2669 const H264Context *h = sl->h264;
2670 int lf_x_start = sl->mb_x;
2671 int orig_deblock = sl->deblocking_filter;
2672 int ret;
2673
2674 sl->linesize = h->cur_pic_ptr->f->linesize[0];
2675 sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2676
2677 ret = alloc_scratch_buffers(sl, sl->linesize);
2678 if (ret < 0)
2679 return ret;
2680
2681 sl->mb_skip_run = -1;
2682
2683 av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2684
2685 if (h->postpone_filter)
2686 sl->deblocking_filter = 0;
2687
2688 sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2689 (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2690
2691 if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && sl->er->error_status_table) {
2692 const int start_i = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2693 if (start_i) {
2694 int prev_status = sl->er->error_status_table[sl->er->mb_index2xy[start_i - 1]];
2695 prev_status &= ~ VP_START;
2696 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2697 sl->er->error_occurred = 1;
2698 }
2699 }
2700
2701 if (h->ps.pps->cabac) {
2702 /* realign */
2703 align_get_bits(&sl->gb);
2704
2705 /* init cabac */
2706 ret = ff_init_cabac_decoder(&sl->cabac,
2707 sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2708 (get_bits_left(&sl->gb) + 7) / 8);
2709 if (ret < 0)
2710 return ret;
2711
2712 ff_h264_init_cabac_states(h, sl);
2713
2714 for (;;) {
2715 int ret, eos;
2716 if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2717 av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2718 sl->next_slice_idx);
2719 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2720 sl->mb_y, ER_MB_ERROR);
2721 return AVERROR_INVALIDDATA;
2722 }
2723
2724 ret = ff_h264_decode_mb_cabac(h, sl);
2725
2726 if (ret >= 0)
2727 ff_h264_hl_decode_mb(h, sl);
2728
2729 // FIXME optimal? or let mb_decode decode 16x32 ?
2730 if (ret >= 0 && FRAME_MBAFF(h)) {
2731 sl->mb_y++;
2732
2733 ret = ff_h264_decode_mb_cabac(h, sl);
2734
2735 if (ret >= 0)
2736 ff_h264_hl_decode_mb(h, sl);
2737 sl->mb_y--;
2738 }
2739 eos = get_cabac_terminate(&sl->cabac);
2740
2741 if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2742 sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2743 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2744 sl->mb_y, ER_MB_END);
2745 if (sl->mb_x >= lf_x_start)
2746 loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2747 goto finish;
2748 }
2749 if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2750 av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %td\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2751 if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2752 av_log(h->avctx, AV_LOG_ERROR,
2753 "error while decoding MB %d %d, bytestream %td\n",
2754 sl->mb_x, sl->mb_y,
2755 sl->cabac.bytestream_end - sl->cabac.bytestream);
2756 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2757 sl->mb_y, ER_MB_ERROR);
2758 return AVERROR_INVALIDDATA;
2759 }
2760
2761 if (++sl->mb_x >= h->mb_width) {
2762 loop_filter(h, sl, lf_x_start, sl->mb_x);
2763 sl->mb_x = lf_x_start = 0;
2764 decode_finish_row(h, sl);
2765 ++sl->mb_y;
2766 if (FIELD_OR_MBAFF_PICTURE(h)) {
2767 ++sl->mb_y;
2768 if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2769 predict_field_decoding_flag(h, sl);
2770 }
2771 }
2772
2773 if (eos || sl->mb_y >= h->mb_height) {
2774 ff_tlog(h->avctx, "slice end %d %d\n",
2775 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2776 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2777 sl->mb_y, ER_MB_END);
2778 if (sl->mb_x > lf_x_start)
2779 loop_filter(h, sl, lf_x_start, sl->mb_x);
2780 goto finish;
2781 }
2782 }
2783 } else {
2784 for (;;) {
2785 int ret;
2786
2787 if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2788 av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2789 sl->next_slice_idx);
2790 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2791 sl->mb_y, ER_MB_ERROR);
2792 return AVERROR_INVALIDDATA;
2793 }
2794
2795 ret = ff_h264_decode_mb_cavlc(h, sl);
2796
2797 if (ret >= 0)
2798 ff_h264_hl_decode_mb(h, sl);
2799
2800 // FIXME optimal? or let mb_decode decode 16x32 ?
2801 if (ret >= 0 && FRAME_MBAFF(h)) {
2802 sl->mb_y++;
2803 ret = ff_h264_decode_mb_cavlc(h, sl);
2804
2805 if (ret >= 0)
2806 ff_h264_hl_decode_mb(h, sl);
2807 sl->mb_y--;
2808 }
2809
2810 if (ret < 0) {
2811 av_log(h->avctx, AV_LOG_ERROR,
2812 "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2813 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2814 sl->mb_y, ER_MB_ERROR);
2815 return ret;
2816 }
2817
2818 if (++sl->mb_x >= h->mb_width) {
2819 loop_filter(h, sl, lf_x_start, sl->mb_x);
2820 sl->mb_x = lf_x_start = 0;
2821 decode_finish_row(h, sl);
2822 ++sl->mb_y;
2823 if (FIELD_OR_MBAFF_PICTURE(h)) {
2824 ++sl->mb_y;
2825 if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2826 predict_field_decoding_flag(h, sl);
2827 }
2828 if (sl->mb_y >= h->mb_height) {
2829 ff_tlog(h->avctx, "slice end %d %d\n",
2830 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2831
2832 if ( get_bits_left(&sl->gb) == 0
2833 || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2834 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2835 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2836
2837 goto finish;
2838 } else {
2839 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2840 sl->mb_x, sl->mb_y, ER_MB_END);
2841
2842 return AVERROR_INVALIDDATA;
2843 }
2844 }
2845 }
2846
2847 if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2848 ff_tlog(h->avctx, "slice end %d %d\n",
2849 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2850
2851 if (get_bits_left(&sl->gb) == 0) {
2852 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2853 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2854 if (sl->mb_x > lf_x_start)
2855 loop_filter(h, sl, lf_x_start, sl->mb_x);
2856
2857 goto finish;
2858 } else {
2859 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2860 sl->mb_y, ER_MB_ERROR);
2861
2862 return AVERROR_INVALIDDATA;
2863 }
2864 }
2865 }
2866 }
2867
2868finish:
2869 sl->deblocking_filter = orig_deblock;
2870 return 0;
2871}
2872
2873/**
2874 * Call decode_slice() for each context.
2875 *
2876 * @param h h264 master context
2877 */
2878int ff_h264_execute_decode_slices(H264Context *h)
2879{
2880 AVCodecContext *const avctx = h->avctx;
2881 H264SliceContext *sl;
2882 int context_count = h->nb_slice_ctx_queued;
2883 int ret = 0;
2884 int i, j;
2885
2886 h->slice_ctx[0].next_slice_idx = INT_MAX;
2887
2888 if (h->avctx->hwaccel || context_count < 1)
2889 return 0;
2890
2891 if (ff_h264_skip_all_pixels(avctx)) {
2892 h->mb_y = h->mb_height;
2893 goto finish;
2894 }
2895
2896 av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2897
2898 if (context_count == 1) {
2899
2900 h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2901 h->postpone_filter = 0;
2902
2903 ret = decode_slice(avctx, &h->slice_ctx[0]);
2904 h->mb_y = h->slice_ctx[0].mb_y;
2905 if (ret < 0)
2906 goto finish;
2907 } else {
2908 av_assert0(context_count > 0);
2909 for (i = 0; i < context_count; i++) {
2910 int next_slice_idx = h->mb_width * h->mb_height;
2911 int slice_idx;
2912
2913 sl = &h->slice_ctx[i];
2914
2915 /* make sure none of those slices overlap */
2916 slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2917 for (j = 0; j < context_count; j++) {
2918 H264SliceContext *sl2 = &h->slice_ctx[j];
2919 int slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2920
2921 if (i == j || slice_idx2 < slice_idx)
2922 continue;
2923 next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2924 }
2925 sl->next_slice_idx = next_slice_idx;
2926 }
2927
2928 avctx->execute(avctx, decode_slice, h->slice_ctx,
2929 NULL, context_count, sizeof(h->slice_ctx[0]));
2930
2931 /* pull back stuff from slices to master context */
2932 sl = &h->slice_ctx[context_count - 1];
2933 h->mb_y = sl->mb_y;
2934
2935 if (h->postpone_filter) {
2936 h->postpone_filter = 0;
2937
2938 for (i = 0; i < context_count; i++) {
2939 int y_end, x_end;
2940
2941 sl = &h->slice_ctx[i];
2942 y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2943 x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2944
2945 for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2946 sl->mb_y = j;
2947 loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2948 j == y_end - 1 ? x_end : h->mb_width);
2949 }
2950 }
2951 }
2952 }
2953
2954finish:
2955 h->nb_slice_ctx_queued = 0;
2956 return ret;
2957}
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:1394
FF_THREAD_SLICE
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition avcodec.h:1596
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:2225
ff_get_format
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition decode.c:1232
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:2339
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:2187
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
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:833
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
skip_bits
static void skip_bits(GetBitContext *s, int n)
Definition get_bits.h:383
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:241
AVDISCARD_NONKEY
@ AVDISCARD_NONKEY
discard all frames except keyframes
Definition defs.h:240
AVDISCARD_BIDIR
@ AVDISCARD_BIDIR
discard all bidirectional frames
Definition defs.h:238
AVDISCARD_NONINTRA
@ AVDISCARD_NONINTRA
discard all non intra frames
Definition defs.h:239
AVDISCARD_NONREF
@ AVDISCARD_NONREF
discard all non reference
Definition defs.h:237
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_DPB
@ H264_NAL_DPB
Definition h264.h:37
H264_NAL_DPA
@ H264_NAL_DPA
Definition h264.h:36
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:682
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:275
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:589
h264_frame_start
static int h264_frame_start(H264Context *h)
Definition h264_slice.c:484
init_dimensions
static void init_dimensions(H264Context *h)
Definition h264_slice.c:941
ff_h264_update_thread_context
int ff_h264_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition h264_slice.c:339
init_scan_tables
static void init_scan_tables(H264Context *h)
initialize scan tables
Definition h264_slice.c:755
fill_filter_caches
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
Definition h264_slice.c:2398
h264_slice_init
static int h264_slice_init(H264Context *h, H264SliceContext *sl, const H2645NAL *nal)
Definition h264_slice.c:1937
implicit_weight_table
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
Initialize implicit_weight table.
Definition h264_slice.c:691
er_add_slice
static void er_add_slice(H264SliceContext *sl, int startx, int starty, int endx, int endy, int status)
Definition h264_slice.c:2654
ff_h264_execute_decode_slices
int ff_h264_execute_decode_slices(H264Context *h)
Call decode_slice() for each context.
Definition h264_slice.c:2878
predict_field_decoding_flag
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
Definition h264_slice.c:2610
get_pixel_format
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback, int data_partitioning)
Definition h264_slice.c:789
ff_h264_queue_decode_slice
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal, H264SliceContext **queued)
Submit a slice for decoding.
Definition h264_slice.c:2158
h264_field_start
static int h264_field_start(H264Context *h, const H264SliceContext *sl, const H2645NAL *nal, int first_slice)
Definition h264_slice.c:1415
REBASE_PICTURE
#define REBASE_PICTURE(pic, new_ctx, old_ctx)
Definition h264_slice.c:289
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:294
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:2540
IN_RANGE
#define IN_RANGE(a, b, size)
Definition h264_slice.c:287
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:1718
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:2314
color_frame
static void color_frame(AVFrame *frame, const int c[4])
Definition h264_slice.c:307
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:1189
h264_parse_slice_id
static int h264_parse_slice_id(const H264Context *h, H264SliceContext *sl)
Definition h264_slice.c:2092
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:981
h264_init_ps
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
Definition h264_slice.c:1074
ff_h264_update_thread_context_for_user
int ff_h264_update_thread_context_for_user(AVCodecContext *dst, const AVCodecContext *src)
Definition h264_slice.c:472
decode_slice
static int decode_slice(struct AVCodecContext *avctx, void *arg)
Definition h264_slice.c:2666
ff_h264_get_slice_type
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition h264_slice.c:2296
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:2623
ff_h264_attach_slice_partition
int ff_h264_attach_slice_partition(const H264Context *h, H264SliceContext *sl, const H2645NAL *nal)
Attach a slice data partition B or C to the slice started by partition A.
Definition h264_slice.c:2117
non_j_pixfmt
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
Definition h264_slice.c:1063
h264_select_output_frame
static int h264_select_output_frame(H264Context *h)
Definition h264_slice.c:1313
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:531
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:404
ff_h264_skip_all_pixels
static int ff_h264_skip_all_pixels(const AVCodecContext *avctx)
Definition h264dec.h:686
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:681
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:536
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:1038
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:622
ff_thread_release_ext_buffer
void ff_thread_release_ext_buffer(ThreadFrame *f)
Unref a ThreadFrame.
Definition pthread_frame.c:1067
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:1046
ff_thread_can_start_frame
int ff_thread_can_start_frame(AVCodecContext *avctx)
Definition pthread_frame.c:1002
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:645
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
atomic_init
#define atomic_init(obj, value)
Definition stdatomic.h:119
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:1614
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:347
H264Context::DPB
H264Picture DPB[H264_MAX_PICTURE_COUNT]
Definition h264dec.h:355
H264Context::is_avc
int is_avc
Used to parse AVC variant of H.264.
Definition h264dec.h:463
H264Context::enable_er
int enable_er
Definition h264dec.h:573
H264Context::nal_length_size
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
Definition h264dec.h:464
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:237
H264SliceContext::uvlinesize
ptrdiff_t uvlinesize
Definition h264dec.h:236
H264SliceContext::mb_field_decoding_flag
int mb_field_decoding_flag
Definition h264dec.h:251
H264SliceContext::list_count
unsigned int list_count
Definition h264dec.h:278
H264SliceContext::ref_cache
int8_t ref_cache[2][5 *8]
Definition h264dec.h:309
H264SliceContext::pwt
H264PredWeightTable pwt
Definition h264dec.h:207
H264SliceContext::left_type
int left_type[LEFT_MBS]
Definition h264dec.h:226
H264SliceContext::pps_id
unsigned int pps_id
Definition h264dec.h:288
H264SliceContext::data_partitioning
int data_partitioning
Definition h264dec.h:187
H264SliceContext::first_mb_addr
unsigned int first_mb_addr
Definition h264dec.h:244
H264SliceContext::bipred_scratchpad_allocated
int bipred_scratchpad_allocated
Definition h264dec.h:295
H264SliceContext::linesize
ptrdiff_t linesize
Definition h264dec.h:236
H264SliceContext::mb_uvlinesize
ptrdiff_t mb_uvlinesize
Definition h264dec.h:238
H264SliceContext::mv_cache
int16_t mv_cache[2][5 *8][2]
Motion vector cache.
Definition h264dec.h:308
H264SliceContext::slice_id
unsigned slice_id
Definition h264dec.h:190
H264SliceContext::left_mb_xy
int left_mb_xy[LEFT_MBS]
Definition h264dec.h:221
H264SliceContext::gb_dpb
GetBitContext gb_dpb
Definition h264dec.h:185
H264SliceContext::cabac
CABACContext cabac
Cabac.
Definition h264dec.h:327
H264SliceContext::edge_emu_buffer
uint8_t * edge_emu_buffer
Definition h264dec.h:293
H264SliceContext::redundant_pic_count
int redundant_pic_count
Definition h264dec.h:254
H264SliceContext::delta_poc
int delta_poc[2]
Definition h264dec.h:339
H264SliceContext::deblocking_filter
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition h264dec.h:203
H264SliceContext::top_borders_allocated
int top_borders_allocated[2]
Definition h264dec.h:297
H264SliceContext::bipred_scratchpad
uint8_t * bipred_scratchpad
Definition h264dec.h:292
H264SliceContext::qp_thresh
int qp_thresh
QP threshold to skip loopfilter.
Definition h264dec.h:199
H264SliceContext::slice_type_nos
int slice_type_nos
S free slice type (SI/SP are remapped to I/P)
Definition h264dec.h:194
H264SliceContext::top_borders
uint8_t(*[2] top_borders)[(16 *3) *2]
Definition h264dec.h:294
H264SliceContext::ref_list
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition h264dec.h:279
H264SliceContext::direct_spatial_mv_pred
int direct_spatial_mv_pred
Definition h264dec.h:261
H264SliceContext::mb_mbaff
int mb_mbaff
mb_aff_frame && mb_field_decoding_flag
Definition h264dec.h:252
H264SliceContext::mvd_table
uint8_t(*[2] mvd_table)[2]
Definition h264dec.h:322
H264SliceContext::gb
GetBitContext gb
Definition h264dec.h:180
H264SliceContext::chroma_qp
int chroma_qp[2]
Definition h264dec.h:198
H264SliceContext::intra4x4_pred_mode
int8_t * intra4x4_pred_mode
Definition h264dec.h:216
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:296
H264SliceContext::explicit_ref_marking
int explicit_ref_marking
Definition h264dec.h:333
H264SliceContext::slice_alpha_c0_offset
int slice_alpha_c0_offset
Definition h264dec.h:204
H264SliceContext::non_zero_count_cache
uint8_t non_zero_count_cache[15 *8]
non zero coeff count cache.
Definition h264dec.h:303
H264SliceContext::slice_beta_offset
int slice_beta_offset
Definition h264dec.h:205
H264SliceContext::ref_count
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition h264dec.h:277
H264SliceContext::mmco
MMCO mmco[H264_MAX_MMCO_COUNT]
Definition h264dec.h:331
H264SliceContext::picture_structure
int picture_structure
Definition h264dec.h:250
H264SliceContext::gb_dpc
GetBitContext gb_dpc
Definition h264dec.h:186
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
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