FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/h264_slice.c
Date: 2024-07-14 13:34:57
Exec Total Coverage
Lines: 1373 1669 82.3%
Functions: 32 33 97.0%
Branches: 915 1251 73.1%

Line Branch Exec Source
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 "refstruct.h"
49 #include "thread.h"
50 #include "threadframe.h"
51
52 static 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
59 static 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
78 static 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)]
98 static 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
117 28975 static void release_unused_pictures(H264Context *h, int remove_current)
118 {
119 int i;
120
121 /* release non reference frames */
122
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1072075 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
123
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1043100 if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
124
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2610 (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
125 23463 ff_h264_unref_picture(&h->DPB[i]);
126 }
127 }
128 28975 }
129
130 37363 static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
131 {
132 37363 const H264Context *h = sl->h264;
133 37363 int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
134
135 37363 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 37363 av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
139
140 37363 av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
141 37363 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142 37363 av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
143 37363 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
144
145
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37363 if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
146
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37363 !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 37363 return 0;
160 }
161
162 601 static int init_table_pools(H264Context *h)
163 {
164 601 const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
165 601 const int mb_array_size = h->mb_stride * h->mb_height;
166 601 const int b4_stride = h->mb_width * 4 + 1;
167 601 const int b4_array_size = b4_stride * h->mb_height * 4;
168
169 601 h->qscale_table_pool = ff_refstruct_pool_alloc(big_mb_num + h->mb_stride, 0);
170 601 h->mb_type_pool = ff_refstruct_pool_alloc((big_mb_num + h->mb_stride) *
171 sizeof(uint32_t), 0);
172 601 h->motion_val_pool = ff_refstruct_pool_alloc(2 * (b4_array_size + 4) *
173 sizeof(int16_t), 0);
174 601 h->ref_index_pool = ff_refstruct_pool_alloc(4 * mb_array_size, 0);
175
176
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601 if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
177
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601 !h->ref_index_pool) {
178 ff_refstruct_pool_uninit(&h->qscale_table_pool);
179 ff_refstruct_pool_uninit(&h->mb_type_pool);
180 ff_refstruct_pool_uninit(&h->motion_val_pool);
181 ff_refstruct_pool_uninit(&h->ref_index_pool);
182 return AVERROR(ENOMEM);
183 }
184
185 601 return 0;
186 }
187
188 25613 static int alloc_picture(H264Context *h, H264Picture *pic)
189 {
190 25613 int i, ret = 0;
191
192
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25613 av_assert0(!pic->f->data[0]);
193
194 25613 pic->tf.f = pic->f;
195 25613 ret = ff_thread_get_ext_buffer(h->avctx, &pic->tf,
196 25613 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
197
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25613 if (ret < 0)
198 goto fail;
199
200
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25613 if (pic->needs_fg) {
201 pic->f_grain->format = pic->f->format;
202 pic->f_grain->width = pic->f->width;
203 pic->f_grain->height = pic->f->height;
204 ret = ff_thread_get_buffer(h->avctx, pic->f_grain, 0);
205 if (ret < 0)
206 goto fail;
207 }
208
209 25613 ret = ff_hwaccel_frame_priv_alloc(h->avctx, &pic->hwaccel_picture_private);
210
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25613 if (ret < 0)
211 goto fail;
212
213
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25613 if (h->decode_error_flags_pool) {
214 42 pic->decode_error_flags = ff_refstruct_pool_get(h->decode_error_flags_pool);
215
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42 if (!pic->decode_error_flags)
216 goto fail;
217 42 atomic_init(pic->decode_error_flags, 0);
218 }
219
220 if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
221 int h_chroma_shift, v_chroma_shift;
222 av_pix_fmt_get_chroma_sub_sample(pic->f->format,
223 &h_chroma_shift, &v_chroma_shift);
224
225 for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
226 memset(pic->f->data[1] + pic->f->linesize[1]*i,
227 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
228 memset(pic->f->data[2] + pic->f->linesize[2]*i,
229 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
230 }
231 }
232
233
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25613 if (!h->qscale_table_pool) {
234 601 ret = init_table_pools(h);
235
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601 if (ret < 0)
236 goto fail;
237 }
238
239 25613 pic->qscale_table_base = ff_refstruct_pool_get(h->qscale_table_pool);
240 25613 pic->mb_type_base = ff_refstruct_pool_get(h->mb_type_pool);
241
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25613 if (!pic->qscale_table_base || !pic->mb_type_base)
242 goto fail;
243
244 25613 pic->mb_type = pic->mb_type_base + 2 * h->mb_stride + 1;
245 25613 pic->qscale_table = pic->qscale_table_base + 2 * h->mb_stride + 1;
246
247
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76839 for (i = 0; i < 2; i++) {
248 51226 pic->motion_val_base[i] = ff_refstruct_pool_get(h->motion_val_pool);
249 51226 pic->ref_index[i] = ff_refstruct_pool_get(h->ref_index_pool);
250
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51226 if (!pic->motion_val_base[i] || !pic->ref_index[i])
251 goto fail;
252
253 51226 pic->motion_val[i] = pic->motion_val_base[i] + 4;
254 }
255
256 25613 pic->pps = ff_refstruct_ref_c(h->ps.pps);
257
258 25613 pic->mb_width = h->mb_width;
259 25613 pic->mb_height = h->mb_height;
260 25613 pic->mb_stride = h->mb_stride;
261
262 25613 return 0;
263 fail:
264 ff_h264_unref_picture(pic);
265 return (ret < 0) ? ret : AVERROR(ENOMEM);
266 }
267
268 25613 static int find_unused_picture(const H264Context *h)
269 {
270 int i;
271
272
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273
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86988 if (!h->DPB[i].f->buf[0])
274 25613 return i;
275 }
276 return AVERROR_INVALIDDATA;
277 }
278
279
280 #define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
281
282 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
283 (((pic) && (pic) >= (old_ctx)->DPB && \
284 (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \
285 &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
286
287 186 static void copy_picture_range(H264Picture **to, H264Picture *const *from, int count,
288 H264Context *new_base, const H264Context *old_base)
289 {
290 int i;
291
292
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5270 for (i = 0; i < count; i++) {
293 av_assert1(!from[i] ||
294 IN_RANGE(from[i], old_base, 1) ||
295 IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
296
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5084 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
297 }
298 186 }
299
300 24 static void color_frame(AVFrame *frame, const int c[4])
301 {
302 24 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
303
304
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24 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
305
306
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96 for (int p = 0; p < desc->nb_components; p++) {
307 72 uint8_t *dst = frame->data[p];
308
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72 int is_chroma = p == 1 || p == 2;
309
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72 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
310
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72 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
311
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72 if (desc->comp[0].depth >= 9) {
312 ((uint16_t*)dst)[0] = c[p];
313 av_memcpy_backptr(dst + 2, 2, bytes - 2);
314 dst += frame->linesize[p];
315 for (int y = 1; y < height; y++) {
316 memcpy(dst, frame->data[p], 2*bytes);
317 dst += frame->linesize[p];
318 }
319 } else {
320
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30280 for (int y = 0; y < height; y++) {
321 30208 memset(dst, c[p], bytes);
322 30208 dst += frame->linesize[p];
323 }
324 }
325 }
326 24 }
327
328 static int h264_slice_header_init(H264Context *h);
329
330 62 int ff_h264_update_thread_context(AVCodecContext *dst,
331 const AVCodecContext *src)
332 {
333 62 H264Context *h = dst->priv_data, *h1 = src->priv_data;
334 62 int inited = h->context_initialized, err = 0;
335 62 int need_reinit = 0;
336 int i, ret;
337
338
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62 if (dst == src)
339 return 0;
340
341
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62 if (inited && !h1->ps.sps)
342 return AVERROR_INVALIDDATA;
343
344
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62 if (inited &&
345
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46 (h->width != h1->width ||
346
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46 h->height != h1->height ||
347
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46 h->mb_width != h1->mb_width ||
348
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46 h->mb_height != h1->mb_height ||
349
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46 !h->ps.sps ||
350
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46 h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma ||
351
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46 h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
352
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46 h->ps.sps->vui.matrix_coeffs != h1->ps.sps->vui.matrix_coeffs)) {
353 need_reinit = 1;
354 }
355
356 /* copy block_offset since frame_start may not be called */
357 62 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
358
359 // SPS/PPS
360
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2046 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++)
361 1984 ff_refstruct_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
362
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15934 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++)
363 15872 ff_refstruct_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
364
365 62 ff_refstruct_replace(&h->ps.pps, h1->ps.pps);
366 62 h->ps.sps = h1->ps.sps;
367
368
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62 if (need_reinit || !inited) {
369 16 h->width = h1->width;
370 16 h->height = h1->height;
371 16 h->mb_height = h1->mb_height;
372 16 h->mb_width = h1->mb_width;
373 16 h->mb_num = h1->mb_num;
374 16 h->mb_stride = h1->mb_stride;
375 16 h->b_stride = h1->b_stride;
376 16 h->x264_build = h1->x264_build;
377
378
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16 if (h->context_initialized || h1->context_initialized) {
379
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16 if ((err = h264_slice_header_init(h)) < 0) {
380 av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
381 return err;
382 }
383 }
384
385 /* copy block_offset since frame_start may not be called */
386 16 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
387 }
388
389 62 h->width_from_caller = h1->width_from_caller;
390 62 h->height_from_caller = h1->height_from_caller;
391 62 h->first_field = h1->first_field;
392 62 h->picture_structure = h1->picture_structure;
393 62 h->mb_aff_frame = h1->mb_aff_frame;
394 62 h->droppable = h1->droppable;
395
396
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2294 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
397 2232 ret = ff_h264_replace_picture(&h->DPB[i], &h1->DPB[i]);
398
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2232 if (ret < 0)
399 return ret;
400 }
401
402
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62 h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
403 62 ret = ff_h264_replace_picture(&h->cur_pic, &h1->cur_pic);
404
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62 if (ret < 0)
405 return ret;
406
407 62 h->enable_er = h1->enable_er;
408 62 h->workaround_bugs = h1->workaround_bugs;
409 62 h->droppable = h1->droppable;
410
411 // extradata/NAL handling
412 62 h->is_avc = h1->is_avc;
413 62 h->nal_length_size = h1->nal_length_size;
414
415 62 memcpy(&h->poc, &h1->poc, sizeof(h->poc));
416
417 62 memcpy(h->short_ref, h1->short_ref, sizeof(h->short_ref));
418 62 memcpy(h->long_ref, h1->long_ref, sizeof(h->long_ref));
419 62 memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
420 62 memcpy(h->last_pocs, h1->last_pocs, sizeof(h->last_pocs));
421
422 62 h->next_output_pic = h1->next_output_pic;
423 62 h->next_outputed_poc = h1->next_outputed_poc;
424 62 h->poc_offset = h1->poc_offset;
425
426 62 memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
427 62 h->nb_mmco = h1->nb_mmco;
428 62 h->mmco_reset = h1->mmco_reset;
429 62 h->explicit_ref_marking = h1->explicit_ref_marking;
430 62 h->long_ref_count = h1->long_ref_count;
431 62 h->short_ref_count = h1->short_ref_count;
432
433 62 copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
434 62 copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
435 62 copy_picture_range(h->delayed_pic, h1->delayed_pic,
436 FF_ARRAY_ELEMS(h->delayed_pic), h, h1);
437
438 62 h->frame_recovered = h1->frame_recovered;
439
440 62 ret = ff_h264_sei_ctx_replace(&h->sei, &h1->sei);
441
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62 if (ret < 0)
442 return ret;
443
444 62 h->sei.common.unregistered.x264_build = h1->sei.common.unregistered.x264_build;
445 62 h->sei.common.mastering_display = h1->sei.common.mastering_display;
446 62 h->sei.common.content_light = h1->sei.common.content_light;
447
448
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62 if (!h->cur_pic_ptr)
449 20 return 0;
450
451
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42 if (!h->droppable) {
452 27 err = ff_h264_execute_ref_pic_marking(h);
453 27 h->poc.prev_poc_msb = h->poc.poc_msb;
454 27 h->poc.prev_poc_lsb = h->poc.poc_lsb;
455 }
456 42 h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
457 42 h->poc.prev_frame_num = h->poc.frame_num;
458
459 42 h->recovery_frame = h1->recovery_frame;
460 42 h->non_gray = h1->non_gray;
461
462 42 return err;
463 }
464
465 50 int ff_h264_update_thread_context_for_user(AVCodecContext *dst,
466 const AVCodecContext *src)
467 {
468 50 H264Context *h = dst->priv_data;
469 50 const H264Context *h1 = src->priv_data;
470
471 50 h->is_avc = h1->is_avc;
472 50 h->nal_length_size = h1->nal_length_size;
473
474 50 return 0;
475 }
476
477 25613 static int h264_frame_start(H264Context *h)
478 {
479 H264Picture *pic;
480 int i, ret;
481 25613 const int pixel_shift = h->pixel_shift;
482
483
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25613 if (!ff_thread_can_start_frame(h->avctx)) {
484 av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
485 return AVERROR_BUG;
486 }
487
488 25613 release_unused_pictures(h, 1);
489 25613 h->cur_pic_ptr = NULL;
490
491 25613 i = find_unused_picture(h);
492
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25613 if (i < 0) {
493 av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
494 return i;
495 }
496 25613 pic = &h->DPB[i];
497
498
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25613 pic->reference = h->droppable ? 0 : h->picture_structure;
499 25613 pic->field_picture = h->picture_structure != PICT_FRAME;
500 25613 pic->frame_num = h->poc.frame_num;
501 /*
502 * Zero key_frame here; IDR markings per slice in frame or fields are ORed
503 * in later.
504 * See decode_nal_units().
505 */
506 25613 pic->f->flags &= ~AV_FRAME_FLAG_KEY;
507 25613 pic->mmco_reset = 0;
508 25613 pic->recovered = 0;
509 25613 pic->invalid_gap = 0;
510 25613 pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
511
512 25613 pic->f->pict_type = h->slice_ctx[0].slice_type;
513
514 25613 pic->f->crop_left = h->crop_left;
515 25613 pic->f->crop_right = h->crop_right;
516 25613 pic->f->crop_top = h->crop_top;
517 25613 pic->f->crop_bottom = h->crop_bottom;
518
519
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25613 pic->needs_fg = h->sei.common.film_grain_characteristics.present && !h->avctx->hwaccel &&
520 !(h->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
521
522
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25613 if ((ret = alloc_picture(h, pic)) < 0)
523 return ret;
524
525 25613 h->cur_pic_ptr = pic;
526 25613 ff_h264_unref_picture(&h->cur_pic);
527 if (CONFIG_ERROR_RESILIENCE) {
528 25613 ff_h264_set_erpic(&h->er.cur_pic, NULL);
529 }
530
531
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25613 if ((ret = ff_h264_ref_picture(&h->cur_pic, h->cur_pic_ptr)) < 0)
532 return ret;
533
534
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51526 for (i = 0; i < h->nb_slice_ctx; i++) {
535 25913 h->slice_ctx[i].linesize = h->cur_pic_ptr->f->linesize[0];
536 25913 h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
537 }
538
539
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25613 if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
540 25313 ff_er_frame_start(&h->er);
541 25313 ff_h264_set_erpic(&h->er.last_pic, NULL);
542 25313 ff_h264_set_erpic(&h->er.next_pic, NULL);
543 }
544
545
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435421 for (i = 0; i < 16; i++) {
546 409808 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
547 409808 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
548 }
549
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435421 for (i = 0; i < 16; i++) {
550 409808 h->block_offset[16 + i] =
551 409808 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
552 409808 h->block_offset[48 + 16 + i] =
553 409808 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
554 }
555
556 /* We mark the current picture as non-reference after allocating it, so
557 * that if we break out due to an error it can be released automatically
558 * in the next ff_mpv_frame_start().
559 */
560 25613 h->cur_pic_ptr->reference = 0;
561
562 25613 h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
563
564 25613 h->next_output_pic = NULL;
565
566 25613 h->postpone_filter = 0;
567
568
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25613 h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
569
570
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25613 if (h->sei.common.unregistered.x264_build >= 0)
571 2063 h->x264_build = h->sei.common.unregistered.x264_build;
572
573 assert(h->cur_pic_ptr->long_ref == 0);
574
575 25613 return 0;
576 }
577
578 12577876 static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
579 const uint8_t *src_y,
580 const uint8_t *src_cb, const uint8_t *src_cr,
581 int linesize, int uvlinesize,
582 int simple)
583 {
584 uint8_t *top_border;
585 12577876 int top_idx = 1;
586 12577876 const int pixel_shift = h->pixel_shift;
587 12577876 int chroma444 = CHROMA444(h);
588 12577876 int chroma422 = CHROMA422(h);
589
590 12577876 src_y -= linesize;
591 12577876 src_cb -= uvlinesize;
592 12577876 src_cr -= uvlinesize;
593
594
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12577876 if (!simple && FRAME_MBAFF(h)) {
595
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2021856 if (sl->mb_y & 1) {
596
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1010928 if (!MB_MBAFF(sl)) {
597 747670 top_border = sl->top_borders[0][sl->mb_x];
598 747670 AV_COPY128(top_border, src_y + 15 * linesize);
599
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747670 if (pixel_shift)
600 213139 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
601 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
602
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747670 if (chroma444) {
603 if (pixel_shift) {
604 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
605 AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
606 AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
607 AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
608 } else {
609 AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
610 AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
611 }
612
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747670 } else if (chroma422) {
613
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106510 if (pixel_shift) {
614 106510 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
615 106510 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
616 } else {
617 AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
618 AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
619 }
620 } else {
621
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641160 if (pixel_shift) {
622 106629 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
623 106629 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
624 } else {
625 534531 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
626 534531 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
627 }
628 }
629 }
630 }
631
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1010928 } else if (MB_MBAFF(sl)) {
632 263258 top_idx = 0;
633 } else
634 747670 return;
635 }
636
637 11830206 top_border = sl->top_borders[top_idx][sl->mb_x];
638 /* There are two lines saved, the line above the top macroblock
639 * of a pair, and the line above the bottom macroblock. */
640 11830206 AV_COPY128(top_border, src_y + 16 * linesize);
641
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11830206 if (pixel_shift)
642 1381381 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
643
644 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
645
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11830206 if (chroma444) {
646
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80328 if (pixel_shift) {
647 19800 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
648 19800 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
649 19800 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
650 19800 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
651 } else {
652 60528 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
653 60528 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
654 }
655
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11749878 } else if (chroma422) {
656
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588635 if (pixel_shift) {
657 584675 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
658 584675 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
659 } else {
660 3960 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
661 3960 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
662 }
663 } else {
664
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11161243 if (pixel_shift) {
665 776906 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
666 776906 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
667 } else {
668 10384337 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
669 10384337 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
670 }
671 }
672 }
673 }
674
675 /**
676 * Initialize implicit_weight table.
677 * @param field 0/1 initialize the weight for interlaced MBAFF
678 * -1 initializes the rest
679 */
680 3841 static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
681 {
682 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
683
684
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11523 for (i = 0; i < 2; i++) {
685 7682 sl->pwt.luma_weight_flag[i] = 0;
686 7682 sl->pwt.chroma_weight_flag[i] = 0;
687 }
688
689
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3841 if (field < 0) {
690
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2129 if (h->picture_structure == PICT_FRAME) {
691 2129 cur_poc = h->cur_pic_ptr->poc;
692 } else {
693 cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
694 }
695
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2129 if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
696
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633 sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
697 416 sl->pwt.use_weight = 0;
698 416 sl->pwt.use_weight_chroma = 0;
699 416 return;
700 }
701 1713 ref_start = 0;
702 1713 ref_count0 = sl->ref_count[0];
703 1713 ref_count1 = sl->ref_count[1];
704 } else {
705 1712 cur_poc = h->cur_pic_ptr->field_poc[field];
706 1712 ref_start = 16;
707 1712 ref_count0 = 16 + 2 * sl->ref_count[0];
708 1712 ref_count1 = 16 + 2 * sl->ref_count[1];
709 }
710
711 3425 sl->pwt.use_weight = 2;
712 3425 sl->pwt.use_weight_chroma = 2;
713 3425 sl->pwt.luma_log2_weight_denom = 5;
714 3425 sl->pwt.chroma_log2_weight_denom = 5;
715
716
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15220 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
717 11795 int64_t poc0 = sl->ref_list[0][ref0].poc;
718
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33691 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
719 21896 int w = 32;
720
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21896 if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
721 21896 int poc1 = sl->ref_list[1][ref1].poc;
722 21896 int td = av_clip_int8(poc1 - poc0);
723
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21896 if (td) {
724 21829 int tb = av_clip_int8(cur_poc - poc0);
725 21829 int tx = (16384 + (FFABS(td) >> 1)) / td;
726 21829 int dist_scale_factor = (tb * tx + 32) >> 8;
727
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21829 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
728 21819 w = 64 - dist_scale_factor;
729 }
730 }
731
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21896 if (field < 0) {
732 5992 sl->pwt.implicit_weight[ref0][ref1][0] =
733 5992 sl->pwt.implicit_weight[ref0][ref1][1] = w;
734 } else {
735 15904 sl->pwt.implicit_weight[ref0][ref1][field] = w;
736 }
737 }
738 }
739 }
740
741 /**
742 * initialize scan tables
743 */
744 601 static void init_scan_tables(H264Context *h)
745 {
746 int i;
747
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10217 for (i = 0; i < 16; i++) {
748 #define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
749 9616 h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
750 9616 h->field_scan[i] = TRANSPOSE(field_scan[i]);
751 #undef TRANSPOSE
752 }
753
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39065 for (i = 0; i < 64; i++) {
754 #define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
755 38464 h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
756 38464 h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
757 38464 h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
758 38464 h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
759 #undef TRANSPOSE
760 }
761
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601 if (h->ps.sps->transform_bypass) { // FIXME same ugly
762 14 memcpy(h->zigzag_scan_q0 , ff_zigzag_scan , sizeof(h->zigzag_scan_q0 ));
763 14 memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 ));
764 14 memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
765 14 memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 ));
766 14 memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
767 14 memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
768 } else {
769 587 memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 ));
770 587 memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 ));
771 587 memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
772 587 memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 ));
773 587 memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
774 587 memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
775 }
776 601 }
777
778 28549 static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
779 {
780 #define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
781 (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
782 CONFIG_H264_D3D12VA_HWACCEL + \
783 CONFIG_H264_NVDEC_HWACCEL + \
784 CONFIG_H264_VAAPI_HWACCEL + \
785 CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
786 CONFIG_H264_VDPAU_HWACCEL + \
787 CONFIG_H264_VULKAN_HWACCEL)
788 28549 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
789
790
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28549 switch (h->ps.sps->bit_depth_luma) {
791 155 case 9:
792
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155 if (CHROMA444(h)) {
793 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
794 *fmt++ = AV_PIX_FMT_GBRP9;
795 } else
796 *fmt++ = AV_PIX_FMT_YUV444P9;
797
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155 } else if (CHROMA422(h))
798 52 *fmt++ = AV_PIX_FMT_YUV422P9;
799 else
800 103 *fmt++ = AV_PIX_FMT_YUV420P9;
801 155 break;
802 372 case 10:
803 #if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
804 if (h->avctx->colorspace != AVCOL_SPC_RGB)
805 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
806 #endif
807 #if CONFIG_H264_VULKAN_HWACCEL
808 *fmt++ = AV_PIX_FMT_VULKAN;
809 #endif
810
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372 if (CHROMA444(h)) {
811
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51 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
812 *fmt++ = AV_PIX_FMT_GBRP10;
813 } else
814 51 *fmt++ = AV_PIX_FMT_YUV444P10;
815
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321 } else if (CHROMA422(h))
816 164 *fmt++ = AV_PIX_FMT_YUV422P10;
817 else {
818 #if CONFIG_H264_VAAPI_HWACCEL
819 // Just add as candidate. Whether VAProfileH264High10 usable or
820 // not is decided by vaapi_decode_make_config() defined in FFmpeg
821 // and vaQueryCodingProfile() defined in libva.
822 157 *fmt++ = AV_PIX_FMT_VAAPI;
823 #endif
824 157 *fmt++ = AV_PIX_FMT_YUV420P10;
825 }
826 372 break;
827 case 12:
828 #if CONFIG_H264_VULKAN_HWACCEL
829 *fmt++ = AV_PIX_FMT_VULKAN;
830 #endif
831 if (CHROMA444(h)) {
832 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
833 *fmt++ = AV_PIX_FMT_GBRP12;
834 } else
835 *fmt++ = AV_PIX_FMT_YUV444P12;
836 } else if (CHROMA422(h))
837 *fmt++ = AV_PIX_FMT_YUV422P12;
838 else
839 *fmt++ = AV_PIX_FMT_YUV420P12;
840 break;
841 case 14:
842 if (CHROMA444(h)) {
843 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
844 *fmt++ = AV_PIX_FMT_GBRP14;
845 } else
846 *fmt++ = AV_PIX_FMT_YUV444P14;
847 } else if (CHROMA422(h))
848 *fmt++ = AV_PIX_FMT_YUV422P14;
849 else
850 *fmt++ = AV_PIX_FMT_YUV420P14;
851 break;
852 28022 case 8:
853 #if CONFIG_H264_VDPAU_HWACCEL
854 28022 *fmt++ = AV_PIX_FMT_VDPAU;
855 #endif
856 #if CONFIG_H264_VULKAN_HWACCEL
857 *fmt++ = AV_PIX_FMT_VULKAN;
858 #endif
859 #if CONFIG_H264_NVDEC_HWACCEL
860 *fmt++ = AV_PIX_FMT_CUDA;
861 #endif
862 #if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
863 if (h->avctx->colorspace != AVCOL_SPC_RGB)
864 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
865 #endif
866
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28022 if (CHROMA444(h)) {
867
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484 if (h->avctx->colorspace == AVCOL_SPC_RGB)
868 *fmt++ = AV_PIX_FMT_GBRP;
869
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484 else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
870 2 *fmt++ = AV_PIX_FMT_YUVJ444P;
871 else
872 482 *fmt++ = AV_PIX_FMT_YUV444P;
873
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27538 } else if (CHROMA422(h)) {
874
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22 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
875 *fmt++ = AV_PIX_FMT_YUVJ422P;
876 else
877 22 *fmt++ = AV_PIX_FMT_YUV422P;
878 } else {
879 #if CONFIG_H264_DXVA2_HWACCEL
880 *fmt++ = AV_PIX_FMT_DXVA2_VLD;
881 #endif
882 #if CONFIG_H264_D3D11VA_HWACCEL
883 *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
884 *fmt++ = AV_PIX_FMT_D3D11;
885 #endif
886 #if CONFIG_H264_D3D12VA_HWACCEL
887 *fmt++ = AV_PIX_FMT_D3D12;
888 #endif
889 #if CONFIG_H264_VAAPI_HWACCEL
890 27516 *fmt++ = AV_PIX_FMT_VAAPI;
891 #endif
892
2/2
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27516 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
893 3 *fmt++ = AV_PIX_FMT_YUVJ420P;
894 else
895 27513 *fmt++ = AV_PIX_FMT_YUV420P;
896 }
897 28022 break;
898 default:
899 av_log(h->avctx, AV_LOG_ERROR,
900 "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
901 return AVERROR_INVALIDDATA;
902 }
903
904 28549 *fmt = AV_PIX_FMT_NONE;
905
906
2/2
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84832 for (int i = 0; pix_fmts[i] != AV_PIX_FMT_NONE; i++)
907
4/4
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✓ Branch 3 taken 256 times.
84244 if (pix_fmts[i] == h->avctx->pix_fmt && !force_callback)
908 27961 return pix_fmts[i];
909 588 return ff_get_format(h->avctx, pix_fmts);
910 }
911
912 /* export coded and cropped frame dimensions to AVCodecContext */
913 28290 static void init_dimensions(H264Context *h)
914 {
915 28290 const SPS *sps = h->ps.sps;
916 28290 int cr = sps->crop_right;
917 28290 int cl = sps->crop_left;
918 28290 int ct = sps->crop_top;
919 28290 int cb = sps->crop_bottom;
920 28290 int width = h->width - (cr + cl);
921 28290 int height = h->height - (ct + cb);
922
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28290 av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
923
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28290 av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
924
925 /* handle container cropping */
926
3/4
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28290 if (h->width_from_caller > 0 && h->height_from_caller > 0 &&
927
3/4
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26049 !sps->crop_top && !sps->crop_left &&
928
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26048 FFALIGN(h->width_from_caller, 16) == FFALIGN(width, 16) &&
929
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26039 FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
930
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26039 h->width_from_caller <= width &&
931
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26038 h->height_from_caller <= height) {
932 26036 width = h->width_from_caller;
933 26036 height = h->height_from_caller;
934 26036 cl = 0;
935 26036 ct = 0;
936 26036 cr = h->width - width;
937 26036 cb = h->height - height;
938 } else {
939 2254 h->width_from_caller = 0;
940 2254 h->height_from_caller = 0;
941 }
942
943 28290 h->avctx->coded_width = h->width;
944 28290 h->avctx->coded_height = h->height;
945 28290 h->avctx->width = width;
946 28290 h->avctx->height = height;
947 28290 h->crop_right = cr;
948 28290 h->crop_left = cl;
949 28290 h->crop_top = ct;
950 28290 h->crop_bottom = cb;
951 28290 }
952
953 601 static int h264_slice_header_init(H264Context *h)
954 {
955 601 const SPS *sps = h->ps.sps;
956 int i, ret;
957
958
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601 if (!sps) {
959 ret = AVERROR_INVALIDDATA;
960 goto fail;
961 }
962
963 601 ff_set_sar(h->avctx, sps->vui.sar);
964 601 av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
965 &h->chroma_x_shift, &h->chroma_y_shift);
966
967
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601 if (sps->timing_info_present_flag) {
968 183 int64_t den = sps->time_scale;
969
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183 if (h->x264_build < 44U)
970 den *= 2;
971 183 av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
972 183 sps->num_units_in_tick * 2, den, 1 << 30);
973 }
974
975 601 ff_h264_free_tables(h);
976
977 601 h->first_field = 0;
978 601 h->prev_interlaced_frame = 1;
979
980 601 init_scan_tables(h);
981 601 ret = ff_h264_alloc_tables(h);
982
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601 if (ret < 0) {
983 av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
984 goto fail;
985 }
986
987
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601 if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
988
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601 sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
989 ) {
990 av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
991 sps->bit_depth_luma);
992 ret = AVERROR_INVALIDDATA;
993 goto fail;
994 }
995
996 601 h->cur_bit_depth_luma =
997 601 h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
998 601 h->cur_chroma_format_idc = sps->chroma_format_idc;
999 601 h->pixel_shift = sps->bit_depth_luma > 8;
1000 601 h->chroma_format_idc = sps->chroma_format_idc;
1001 601 h->bit_depth_luma = sps->bit_depth_luma;
1002
1003 601 ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
1004 601 sps->chroma_format_idc);
1005 601 ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
1006 601 ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
1007 601 ff_h264_pred_init(&h->hpc, AV_CODEC_ID_H264, sps->bit_depth_luma,
1008 601 sps->chroma_format_idc);
1009 601 ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
1010
1011
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601 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
1012 600 ff_h264_slice_context_init(h, &h->slice_ctx[0]);
1013 } else {
1014
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3 for (i = 0; i < h->nb_slice_ctx; i++) {
1015 2 H264SliceContext *sl = &h->slice_ctx[i];
1016
1017 2 sl->h264 = h;
1018 2 sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
1019 2 sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride;
1020 2 sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride;
1021
1022 2 ff_h264_slice_context_init(h, sl);
1023 }
1024 }
1025
1026 601 h->context_initialized = 1;
1027
1028 601 return 0;
1029 fail:
1030 ff_h264_free_tables(h);
1031 h->context_initialized = 0;
1032 return ret;
1033 }
1034
1035 55928 static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1036 {
1037
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✓ Branch 3 taken 55926 times.
55928 switch (a) {
1038 2 case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1039 case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1040 case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1041 55926 default:
1042 55926 return a;
1043 }
1044 }
1045
1046 28290 static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1047 {
1048 const SPS *sps;
1049 28290 int needs_reinit = 0, must_reinit, ret;
1050
1051
2/2
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28290 if (first_slice)
1052 28096 ff_refstruct_replace(&h->ps.pps, h->ps.pps_list[sl->pps_id]);
1053
1054
2/2
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28290 if (h->ps.sps != h->ps.pps->sps) {
1055 587 h->ps.sps = h->ps.pps->sps;
1056
1057
2/2
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587 if (h->mb_width != h->ps.sps->mb_width ||
1058
1/2
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7 h->mb_height != h->ps.sps->mb_height ||
1059
2/2
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7 h->cur_bit_depth_luma != h->ps.sps->bit_depth_luma ||
1060
2/2
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6 h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1061 )
1062 582 needs_reinit = 1;
1063
1064
2/2
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587 if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||
1065
2/2
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11 h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1066 577 needs_reinit = 1;
1067 }
1068 28290 sps = h->ps.sps;
1069
1070
2/2
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56003 must_reinit = (h->context_initialized &&
1071
2/2
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✓ Branch 1 taken 6 times.
27713 ( 16*sps->mb_width != h->avctx->coded_width
1072
1/2
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27707 || 16*sps->mb_height != h->avctx->coded_height
1073
2/2
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27707 || h->cur_bit_depth_luma != sps->bit_depth_luma
1074
2/2
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27706 || h->cur_chroma_format_idc != sps->chroma_format_idc
1075
1/2
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27705 || h->mb_width != sps->mb_width
1076
1/2
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27705 || h->mb_height != sps->mb_height
1077 ));
1078
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28290 if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1079
2/2
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27964 || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1080 329 must_reinit = 1;
1081
1082
4/4
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28290 if (first_slice && av_cmp_q(sps->vui.sar, h->avctx->sample_aspect_ratio))
1083 71 must_reinit = 1;
1084
1085
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28290 if (!h->setup_finished) {
1086 28290 h->avctx->profile = ff_h264_get_profile(sps);
1087 28290 h->avctx->level = sps->level_idc;
1088 28290 h->avctx->refs = sps->ref_frame_count;
1089
1090 28290 h->mb_width = sps->mb_width;
1091 28290 h->mb_height = sps->mb_height;
1092 28290 h->mb_num = h->mb_width * h->mb_height;
1093 28290 h->mb_stride = h->mb_width + 1;
1094
1095 28290 h->b_stride = h->mb_width * 4;
1096
1097 28290 h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1098
1099 28290 h->width = 16 * h->mb_width;
1100 28290 h->height = 16 * h->mb_height;
1101
1102 28290 init_dimensions(h);
1103
1104
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28290 if (sps->vui.video_signal_type_present_flag) {
1105 2574 h->avctx->color_range = sps->vui.video_full_range_flag > 0 ? AVCOL_RANGE_JPEG
1106
2/2
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1287 : AVCOL_RANGE_MPEG;
1107
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1287 if (sps->vui.colour_description_present_flag) {
1108
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1189 if (h->avctx->colorspace != sps->vui.matrix_coeffs)
1109 19 needs_reinit = 1;
1110 1189 h->avctx->color_primaries = sps->vui.colour_primaries;
1111 1189 h->avctx->color_trc = sps->vui.transfer_characteristics;
1112 1189 h->avctx->colorspace = sps->vui.matrix_coeffs;
1113 }
1114 }
1115
1116
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28290 if (h->sei.common.alternative_transfer.present &&
1117 av_color_transfer_name(h->sei.common.alternative_transfer.preferred_transfer_characteristics) &&
1118 h->sei.common.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1119 h->avctx->color_trc = h->sei.common.alternative_transfer.preferred_transfer_characteristics;
1120 }
1121 }
1122 28290 h->avctx->chroma_sample_location = sps->vui.chroma_location;
1123
1124
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28290 if (!h->context_initialized || must_reinit || needs_reinit) {
1125 585 int flush_changes = h->context_initialized;
1126 585 h->context_initialized = 0;
1127
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585 if (sl != h->slice_ctx) {
1128 av_log(h->avctx, AV_LOG_ERROR,
1129 "changing width %d -> %d / height %d -> %d on "
1130 "slice %d\n",
1131 h->width, h->avctx->coded_width,
1132 h->height, h->avctx->coded_height,
1133 h->current_slice + 1);
1134 return AVERROR_INVALIDDATA;
1135 }
1136
1137 av_assert1(first_slice);
1138
1139
2/2
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585 if (flush_changes)
1140 8 ff_h264_flush_change(h);
1141
1142
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585 if ((ret = get_pixel_format(h, 1)) < 0)
1143 return ret;
1144 585 h->avctx->pix_fmt = ret;
1145
1146 585 av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1147 585 "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1148
1149
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585 if ((ret = h264_slice_header_init(h)) < 0) {
1150 av_log(h->avctx, AV_LOG_ERROR,
1151 "h264_slice_header_init() failed\n");
1152 return ret;
1153 }
1154 }
1155
1156 28290 return 0;
1157 }
1158
1159 24923 static int h264_export_frame_props(H264Context *h)
1160 {
1161 24923 const SPS *sps = h->ps.sps;
1162 24923 H264Picture *cur = h->cur_pic_ptr;
1163 24923 AVFrame *out = cur->f;
1164 24923 int interlaced_frame = 0, top_field_first = 0;
1165 int ret;
1166
1167 24923 out->flags &= ~AV_FRAME_FLAG_INTERLACED;
1168 24923 out->repeat_pict = 0;
1169
1170 /* Signal interlacing information externally. */
1171 /* Prioritize picture timing SEI information over used
1172 * decoding process if it exists. */
1173
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24923 if (h->sei.picture_timing.present) {
1174 1427 int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1175 1427 h->avctx);
1176
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1427 if (ret < 0) {
1177 av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1178 if (h->avctx->err_recognition & AV_EF_EXPLODE)
1179 return ret;
1180 h->sei.picture_timing.present = 0;
1181 }
1182 }
1183
1184
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✓ Branch 3 taken 86 times.
26342 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1185 1419 const H264SEIPictureTiming *pt = &h->sei.picture_timing;
1186
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1419 switch (pt->pic_struct) {
1187 132 case H264_SEI_PIC_STRUCT_FRAME:
1188 132 break;
1189 377 case H264_SEI_PIC_STRUCT_TOP_FIELD:
1190 case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1191 377 interlaced_frame = 1;
1192 377 break;
1193 743 case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1194 case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1195
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743 if (FIELD_OR_MBAFF_PICTURE(h))
1196 739 interlaced_frame = 1;
1197 else
1198 // try to flag soft telecine progressive
1199 4 interlaced_frame = !!h->prev_interlaced_frame;
1200 743 break;
1201 167 case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1202 case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1203 /* Signal the possibility of telecined film externally
1204 * (pic_struct 5,6). From these hints, let the applications
1205 * decide if they apply deinterlacing. */
1206 167 out->repeat_pict = 1;
1207 167 break;
1208 case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1209 out->repeat_pict = 2;
1210 break;
1211 case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1212 out->repeat_pict = 4;
1213 break;
1214 }
1215
1216
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1419 if ((pt->ct_type & 3) &&
1217
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652 pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1218 488 interlaced_frame = ((pt->ct_type & (1 << 1)) != 0);
1219 } else {
1220 /* Derive interlacing flag from used decoding process. */
1221
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23504 interlaced_frame = !!FIELD_OR_MBAFF_PICTURE(h);
1222 }
1223 24923 h->prev_interlaced_frame = interlaced_frame;
1224
1225
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24923 if (cur->field_poc[0] != cur->field_poc[1]) {
1226 /* Derive top_field_first from field pocs. */
1227 3337 top_field_first = (cur->field_poc[0] < cur->field_poc[1]);
1228 } else {
1229
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21586 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1230 /* Use picture timing SEI information. Even if it is a
1231 * information of a past frame, better than nothing. */
1232
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139 if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1233
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138 h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1234 3 top_field_first = 1;
1235
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21447 } else if (interlaced_frame) {
1236 /* Default to top field first when pic_struct_present_flag
1237 * is not set but interlaced frame detected */
1238 2554 top_field_first = 1;
1239 } // else
1240 /* Most likely progressive */
1241 }
1242
1243 24923 out->flags |= (AV_FRAME_FLAG_INTERLACED * interlaced_frame) |
1244 24923 (AV_FRAME_FLAG_TOP_FIELD_FIRST * top_field_first);
1245
1246 24923 ret = ff_h2645_sei_to_frame(out, &h->sei.common, AV_CODEC_ID_H264, h->avctx,
1247 24923 &sps->vui, sps->bit_depth_luma, sps->bit_depth_chroma,
1248 24923 cur->poc + (unsigned)(h->poc_offset << 5));
1249
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24923 if (ret < 0)
1250 return ret;
1251
1252
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24923 if (h->sei.picture_timing.timecode_cnt > 0) {
1253 uint32_t *tc_sd;
1254 char tcbuf[AV_TIMECODE_STR_SIZE];
1255 AVFrameSideData *tcside;
1256 652 ret = ff_frame_new_side_data(h->avctx, out, AV_FRAME_DATA_S12M_TIMECODE,
1257 sizeof(uint32_t)*4, &tcside);
1258
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652 if (ret < 0)
1259 return ret;
1260
1261
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652 if (tcside) {
1262 652 tc_sd = (uint32_t*)tcside->data;
1263 652 tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1264
1265
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1605 for (int i = 0; i < tc_sd[0]; i++) {
1266 953 int drop = h->sei.picture_timing.timecode[i].dropframe;
1267 953 int hh = h->sei.picture_timing.timecode[i].hours;
1268 953 int mm = h->sei.picture_timing.timecode[i].minutes;
1269 953 int ss = h->sei.picture_timing.timecode[i].seconds;
1270 953 int ff = h->sei.picture_timing.timecode[i].frame;
1271
1272 953 tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1273 953 av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1274 953 av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1275 }
1276 }
1277 652 h->sei.picture_timing.timecode_cnt = 0;
1278 }
1279
1280 24923 return 0;
1281 }
1282
1283 24923 static int h264_select_output_frame(H264Context *h)
1284 {
1285 24923 const SPS *sps = h->ps.sps;
1286 24923 H264Picture *out = h->cur_pic_ptr;
1287 24923 H264Picture *cur = h->cur_pic_ptr;
1288 int i, pics, out_of_order, out_idx;
1289
1290 24923 cur->mmco_reset = h->mmco_reset;
1291 24923 h->mmco_reset = 0;
1292
1293
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24923 if (sps->bitstream_restriction_flag ||
1294
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20019 h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1295 4904 h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1296 }
1297
1298 408692 for (i = 0; 1; i++) {
1299
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408692 if(i == H264_MAX_DPB_FRAMES || cur->poc < h->last_pocs[i]){
1300
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24923 if(i)
1301 24923 h->last_pocs[i-1] = cur->poc;
1302 24923 break;
1303
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383769 } else if(i) {
1304 358846 h->last_pocs[i-1]= h->last_pocs[i];
1305 }
1306 }
1307 24923 out_of_order = H264_MAX_DPB_FRAMES - i;
1308
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24923 if( cur->f->pict_type == AV_PICTURE_TYPE_B
1309
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16799 || (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))
1310 13187 out_of_order = FFMAX(out_of_order, 1);
1311
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24923 if (out_of_order == H264_MAX_DPB_FRAMES) {
1312 av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1313 for (i = 1; i < H264_MAX_DPB_FRAMES; i++)
1314 h->last_pocs[i] = INT_MIN;
1315 h->last_pocs[0] = cur->poc;
1316 cur->mmco_reset = 1;
1317
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24923 } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1318
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140 int loglevel = h->avctx->frame_num > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1319 140 av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1320 140 h->avctx->has_b_frames = out_of_order;
1321 }
1322
1323 24923 pics = 0;
1324
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55463 while (h->delayed_pic[pics])
1325 30540 pics++;
1326
1327
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24923 av_assert0(pics <= H264_MAX_DPB_FRAMES);
1328
1329 24923 h->delayed_pic[pics++] = cur;
1330
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24923 if (cur->reference == 0)
1331 23448 cur->reference = DELAYED_PIC_REF;
1332
1333 24923 out = h->delayed_pic[0];
1334 24923 out_idx = 0;
1335 24923 for (i = 1; h->delayed_pic[i] &&
1336
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52545 !(h->delayed_pic[i]->f->flags & AV_FRAME_FLAG_KEY) &&
1337
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27709 !h->delayed_pic[i]->mmco_reset;
1338 27622 i++)
1339
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27622 if (h->delayed_pic[i]->poc < out->poc) {
1340 10307 out = h->delayed_pic[i];
1341 10307 out_idx = i;
1342 }
1343
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24923 if (h->avctx->has_b_frames == 0 &&
1344
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10258 ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset))
1345 804 h->next_outputed_poc = INT_MIN;
1346 24923 out_of_order = out->poc < h->next_outputed_poc;
1347
1348
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24923 if (out_of_order || pics > h->avctx->has_b_frames) {
1349 24398 out->reference &= ~DELAYED_PIC_REF;
1350
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63942 for (i = out_idx; h->delayed_pic[i]; i++)
1351 39544 h->delayed_pic[i] = h->delayed_pic[i + 1];
1352 }
1353
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24923 if (!out_of_order && pics > h->avctx->has_b_frames) {
1354 24285 h->next_output_pic = out;
1355
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24285 if (out_idx == 0 && h->delayed_pic[0] && ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset)) {
1356 105 h->next_outputed_poc = INT_MIN;
1357 } else
1358 24180 h->next_outputed_poc = out->poc;
1359
1360 // We have reached an recovery point and all frames after it in
1361 // display order are "recovered".
1362 24285 h->frame_recovered |= out->recovered;
1363
1364 24285 out->recovered |= h->frame_recovered & FRAME_RECOVERED_SEI;
1365
1366
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24285 if (!out->recovered) {
1367
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249 if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1368
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249 !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1369 249 h->next_output_pic = NULL;
1370 } else {
1371 out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1372 }
1373 }
1374 } else {
1375
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638 av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1376 }
1377
1378 24923 return 0;
1379 }
1380
1381 /* This function is called right after decoding the slice header for a first
1382 * slice in a field (or a frame). It decides whether we are decoding a new frame
1383 * or a second field in a pair and does the necessary setup.
1384 */
1385 28290 static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1386 const H2645NAL *nal, int first_slice)
1387 {
1388 int i;
1389 const SPS *sps;
1390
1391 int last_pic_structure, last_pic_droppable, ret;
1392
1393 28290 ret = h264_init_ps(h, sl, first_slice);
1394
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28290 if (ret < 0)
1395 return ret;
1396
1397 28290 sps = h->ps.sps;
1398
1399
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28290 if (sps->bitstream_restriction_flag &&
1400
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5237 h->avctx->has_b_frames < sps->num_reorder_frames) {
1401 29 h->avctx->has_b_frames = sps->num_reorder_frames;
1402 }
1403
1404 28290 last_pic_droppable = h->droppable;
1405 28290 last_pic_structure = h->picture_structure;
1406 28290 h->droppable = (nal->ref_idc == 0);
1407 28290 h->picture_structure = sl->picture_structure;
1408
1409 28290 h->poc.frame_num = sl->frame_num;
1410 28290 h->poc.poc_lsb = sl->poc_lsb;
1411 28290 h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1412 28290 h->poc.delta_poc[0] = sl->delta_poc[0];
1413 28290 h->poc.delta_poc[1] = sl->delta_poc[1];
1414
1415
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28290 if (nal->type == H264_NAL_IDR_SLICE)
1416 1077 h->poc_offset = sl->idr_pic_id;
1417
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27213 else if (h->picture_intra_only)
1418 h->poc_offset = 0;
1419
1420 /* Shorten frame num gaps so we don't have to allocate reference
1421 * frames just to throw them away */
1422
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28290 if (h->poc.frame_num != h->poc.prev_frame_num) {
1423 16146 int unwrap_prev_frame_num = h->poc.prev_frame_num;
1424 16146 int max_frame_num = 1 << sps->log2_max_frame_num;
1425
1426
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16146 if (unwrap_prev_frame_num > h->poc.frame_num)
1427 193 unwrap_prev_frame_num -= max_frame_num;
1428
1429
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16146 if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1430 74 unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1431
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74 if (unwrap_prev_frame_num < 0)
1432 2 unwrap_prev_frame_num += max_frame_num;
1433
1434 74 h->poc.prev_frame_num = unwrap_prev_frame_num;
1435 }
1436 }
1437
1438 /* See if we have a decoded first field looking for a pair...
1439 * Here, we're using that to see if we should mark previously
1440 * decode frames as "finished".
1441 * We have to do that before the "dummy" in-between frame allocation,
1442 * since that can modify h->cur_pic_ptr. */
1443
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28290 if (h->first_field) {
1444 3362 int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1445
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3362 av_assert0(h->cur_pic_ptr);
1446
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3362 av_assert0(h->cur_pic_ptr->f->buf[0]);
1447 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1448
1449 /* Mark old field/frame as completed */
1450
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3362 if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1451 3362 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1452 }
1453
1454 /* figure out if we have a complementary field pair */
1455
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3362 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1456 /* Previous field is unmatched. Don't display it, but let it
1457 * remain for reference if marked as such. */
1458 if (last_pic_structure != PICT_FRAME) {
1459 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1460 last_pic_structure == PICT_TOP_FIELD);
1461 }
1462 } else {
1463
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3362 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1464 /* This and previous field were reference, but had
1465 * different frame_nums. Consider this field first in
1466 * pair. Throw away previous field except for reference
1467 * purposes. */
1468 if (last_pic_structure != PICT_FRAME) {
1469 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1470 last_pic_structure == PICT_TOP_FIELD);
1471 }
1472 } else {
1473 /* Second field in complementary pair */
1474
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3362 if (!((last_pic_structure == PICT_TOP_FIELD &&
1475
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3354 h->picture_structure == PICT_BOTTOM_FIELD) ||
1476 8 (last_pic_structure == PICT_BOTTOM_FIELD &&
1477
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8 h->picture_structure == PICT_TOP_FIELD))) {
1478 av_log(h->avctx, AV_LOG_ERROR,
1479 "Invalid field mode combination %d/%d\n",
1480 last_pic_structure, h->picture_structure);
1481 h->picture_structure = last_pic_structure;
1482 h->droppable = last_pic_droppable;
1483 return AVERROR_INVALIDDATA;
1484
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3362 } else if (last_pic_droppable != h->droppable) {
1485 avpriv_request_sample(h->avctx,
1486 "Found reference and non-reference fields in the same frame, which");
1487 h->picture_structure = last_pic_structure;
1488 h->droppable = last_pic_droppable;
1489 return AVERROR_PATCHWELCOME;
1490 }
1491 }
1492 }
1493 }
1494
1495
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57265 while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1496
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16831 h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1497
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685 const H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1498 685 av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1499 h->poc.frame_num, h->poc.prev_frame_num);
1500
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685 if (!sps->gaps_in_frame_num_allowed_flag)
1501
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1836 for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1502 1728 h->last_pocs[i] = INT_MIN;
1503 685 ret = h264_frame_start(h);
1504
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685 if (ret < 0) {
1505 h->first_field = 0;
1506 return ret;
1507 }
1508
1509 685 h->poc.prev_frame_num++;
1510 685 h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num;
1511 685 h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1512 685 h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1513 685 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1514 685 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1515
1516 685 h->explicit_ref_marking = 0;
1517 685 ret = ff_h264_execute_ref_pic_marking(h);
1518
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685 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1519 return ret;
1520 /* Error concealment: If a ref is missing, copy the previous ref
1521 * in its place.
1522 * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1523 * many assumptions about there being no actual duplicates.
1524 * FIXME: This does not copy padding for out-of-frame motion
1525 * vectors. Given we are concealing a lost frame, this probably
1526 * is not noticeable by comparison, but it should be fixed. */
1527
1/2
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✗ Branch 1 not taken.
685 if (h->short_ref_count) {
1528 685 int c[4] = {
1529 685 1<<(h->ps.sps->bit_depth_luma-1),
1530 685 1<<(h->ps.sps->bit_depth_chroma-1),
1531 685 1<<(h->ps.sps->bit_depth_chroma-1),
1532 -1
1533 };
1534
1535
2/2
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✓ Branch 1 taken 32 times.
685 if (prev &&
1536
1/2
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✗ Branch 1 not taken.
653 h->short_ref[0]->f->width == prev->f->width &&
1537
1/2
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✗ Branch 1 not taken.
653 h->short_ref[0]->f->height == prev->f->height &&
1538
1/2
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653 h->short_ref[0]->f->format == prev->f->format) {
1539 653 ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1540
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 625 times.
653 if (prev->field_picture)
1541 28 ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1542 653 ff_thread_release_ext_buffer(&h->short_ref[0]->tf);
1543 653 h->short_ref[0]->tf.f = h->short_ref[0]->f;
1544 653 ret = ff_thread_ref_frame(&h->short_ref[0]->tf, &prev->tf);
1545
1/2
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✓ Branch 1 taken 653 times.
653 if (ret < 0)
1546 return ret;
1547 653 h->short_ref[0]->poc = prev->poc + 2U;
1548 653 h->short_ref[0]->gray = prev->gray;
1549 653 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 0);
1550
2/2
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653 if (h->short_ref[0]->field_picture)
1551 28 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 1);
1552
2/2
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✓ Branch 1 taken 8 times.
32 } else if (!h->frame_recovered) {
1553
1/2
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✗ Branch 1 not taken.
24 if (!h->avctx->hwaccel)
1554 24 color_frame(h->short_ref[0]->f, c);
1555 24 h->short_ref[0]->gray = 1;
1556 }
1557 685 h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1558 }
1559 }
1560
1561 /* See if we have a decoded first field looking for a pair...
1562 * We're using that to see whether to continue decoding in that
1563 * frame, or to allocate a new one. */
1564
2/2
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28290 if (h->first_field) {
1565
1/2
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✓ Branch 1 taken 3362 times.
3362 av_assert0(h->cur_pic_ptr);
1566
1/2
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✓ Branch 1 taken 3362 times.
3362 av_assert0(h->cur_pic_ptr->f->buf[0]);
1567 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1568
1569 /* figure out if we have a complementary field pair */
1570
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3362 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1571 /* Previous field is unmatched. Don't display it, but let it
1572 * remain for reference if marked as such. */
1573 h->missing_fields ++;
1574 h->cur_pic_ptr = NULL;
1575 h->first_field = FIELD_PICTURE(h);
1576 } else {
1577 3362 h->missing_fields = 0;
1578
1/2
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✓ Branch 1 taken 3362 times.
3362 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1579 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1580 h->picture_structure==PICT_BOTTOM_FIELD);
1581 /* This and the previous field had different frame_nums.
1582 * Consider this field first in pair. Throw away previous
1583 * one except for reference purposes. */
1584 h->first_field = 1;
1585 h->cur_pic_ptr = NULL;
1586
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✓ Branch 1 taken 3362 times.
3362 } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1587 /* This frame was already output, we cannot draw into it
1588 * anymore.
1589 */
1590 h->first_field = 1;
1591 h->cur_pic_ptr = NULL;
1592 } else {
1593 /* Second field in complementary pair */
1594 3362 h->first_field = 0;
1595 }
1596 }
1597 } else {
1598 /* Frame or first field in a potentially complementary pair */
1599 24928 h->first_field = FIELD_PICTURE(h);
1600 }
1601
1602
4/4
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✓ Branch 1 taken 21561 times.
✓ Branch 2 taken 3367 times.
✓ Branch 3 taken 3362 times.
28290 if (!FIELD_PICTURE(h) || h->first_field) {
1603
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 24928 times.
24928 if (h264_frame_start(h) < 0) {
1604 h->first_field = 0;
1605 return AVERROR_INVALIDDATA;
1606 }
1607 } else {
1608 3362 int field = h->picture_structure == PICT_BOTTOM_FIELD;
1609 3362 release_unused_pictures(h, 0);
1610 3362 h->cur_pic_ptr->tf.owner[field] = h->avctx;
1611 }
1612 /* Some macroblocks can be accessed before they're available in case
1613 * of lost slices, MBAFF or threading. */
1614
2/2
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28290 if (FIELD_PICTURE(h)) {
1615
2/2
✓ Branch 0 taken 168342 times.
✓ Branch 1 taken 6729 times.
175071 for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1616 168342 memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1617 } else {
1618 21561 memset(h->slice_table, -1,
1619 21561 (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1620 }
1621
1622 28290 ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1623 28290 h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1624
1/2
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✓ Branch 1 taken 28290 times.
28290 if (ret < 0)
1625 return ret;
1626
1627 28290 memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1628 28290 h->nb_mmco = sl->nb_mmco;
1629 28290 h->explicit_ref_marking = sl->explicit_ref_marking;
1630
1631 28290 h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1632
1633
2/2
✓ Branch 0 taken 90 times.
✓ Branch 1 taken 28200 times.
28290 if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1634 90 const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1635
1636
4/4
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✓ Branch 1 taken 65 times.
✓ Branch 2 taken 11 times.
✓ Branch 3 taken 14 times.
90 if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1637 76 h->valid_recovery_point = 1;
1638
1639
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 86 times.
90 if ( h->recovery_frame < 0
1640
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
4 || av_zero_extend(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1641 86 h->recovery_frame = av_zero_extend(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1642
1643
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 80 times.
86 if (!h->valid_recovery_point)
1644 6 h->recovery_frame = h->poc.frame_num;
1645 }
1646 }
1647
1648
2/2
✓ Branch 0 taken 1077 times.
✓ Branch 1 taken 27213 times.
28290 h->cur_pic_ptr->f->flags |= AV_FRAME_FLAG_KEY * !!(nal->type == H264_NAL_IDR_SLICE);
1649
1650
2/2
✓ Branch 0 taken 1077 times.
✓ Branch 1 taken 27213 times.
28290 if (nal->type == H264_NAL_IDR_SLICE) {
1651 1077 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_IDR;
1652 // If we have an IDR, all frames after it in decoded order are
1653 // "recovered".
1654 1077 h->frame_recovered |= FRAME_RECOVERED_IDR;
1655 }
1656
1657
4/4
✓ Branch 0 taken 99 times.
✓ Branch 1 taken 28191 times.
✓ Branch 2 taken 85 times.
✓ Branch 3 taken 14 times.
28290 if (h->recovery_frame == h->poc.frame_num && nal->ref_idc) {
1658 85 h->recovery_frame = -1;
1659 85 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_SEI;
1660 }
1661
1662 #if 1
1663 28290 h->cur_pic_ptr->recovered |= h->frame_recovered;
1664 #else
1665 h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1666 #endif
1667
1668 /* Set the frame properties/side data. Only done for the second field in
1669 * field coded frames, since some SEI information is present for each field
1670 * and is merged by the SEI parsing code. */
1671
5/6
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✓ Branch 2 taken 3367 times.
✓ Branch 3 taken 3362 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 3367 times.
28290 if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1672 24923 ret = h264_export_frame_props(h);
1673
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 24923 times.
24923 if (ret < 0)
1674 return ret;
1675
1676 24923 ret = h264_select_output_frame(h);
1677
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 24923 times.
24923 if (ret < 0)
1678 return ret;
1679 }
1680
1681 28290 return 0;
1682 }
1683
1684 37610 static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1685 const H2645NAL *nal)
1686 {
1687 const SPS *sps;
1688 const PPS *pps;
1689 int ret;
1690 unsigned int slice_type, tmp, i;
1691 int field_pic_flag, bottom_field_flag;
1692
4/4
✓ Branch 0 taken 37160 times.
✓ Branch 1 taken 450 times.
✓ Branch 2 taken 28339 times.
✓ Branch 3 taken 8821 times.
37610 int first_slice = sl == h->slice_ctx && !h->current_slice;
1693 int picture_structure;
1694
1695
2/2
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✓ Branch 1 taken 9271 times.
37610 if (first_slice)
1696
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28339 times.
28339 av_assert0(!h->setup_finished);
1697
1698 37610 sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1699
1700 37610 slice_type = get_ue_golomb_31(&sl->gb);
1701
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37610 times.
37610 if (slice_type > 9) {
1702 av_log(h->avctx, AV_LOG_ERROR,
1703 "slice type %d too large at %d\n",
1704 slice_type, sl->first_mb_addr);
1705 return AVERROR_INVALIDDATA;
1706 }
1707
2/2
✓ Branch 0 taken 23886 times.
✓ Branch 1 taken 13724 times.
37610 if (slice_type > 4) {
1708 23886 slice_type -= 5;
1709 23886 sl->slice_type_fixed = 1;
1710 } else
1711 13724 sl->slice_type_fixed = 0;
1712
1713 37610 slice_type = ff_h264_golomb_to_pict_type[slice_type];
1714 37610 sl->slice_type = slice_type;
1715 37610 sl->slice_type_nos = slice_type & 3;
1716
1717
2/2
✓ Branch 0 taken 2263 times.
✓ Branch 1 taken 35347 times.
37610 if (nal->type == H264_NAL_IDR_SLICE &&
1718
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2263 times.
2263 sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1719 av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1720 return AVERROR_INVALIDDATA;
1721 }
1722
1723 37610 sl->pps_id = get_ue_golomb(&sl->gb);
1724
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37610 times.
37610 if (sl->pps_id >= MAX_PPS_COUNT) {
1725 av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1726 return AVERROR_INVALIDDATA;
1727 }
1728
2/2
✓ Branch 0 taken 167 times.
✓ Branch 1 taken 37443 times.
37610 if (!h->ps.pps_list[sl->pps_id]) {
1729 167 av_log(h->avctx, AV_LOG_ERROR,
1730 "non-existing PPS %u referenced\n",
1731 sl->pps_id);
1732 167 return AVERROR_INVALIDDATA;
1733 }
1734 37443 pps = h->ps.pps_list[sl->pps_id];
1735 37443 sps = pps->sps;
1736
1737 37443 sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1738
2/2
✓ Branch 0 taken 9267 times.
✓ Branch 1 taken 28176 times.
37443 if (!first_slice) {
1739
1/2
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✓ Branch 1 taken 9267 times.
9267 if (h->poc.frame_num != sl->frame_num) {
1740 av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1741 h->poc.frame_num, sl->frame_num);
1742 return AVERROR_INVALIDDATA;
1743 }
1744 }
1745
1746 37443 sl->mb_mbaff = 0;
1747
1748
2/2
✓ Branch 0 taken 22948 times.
✓ Branch 1 taken 14495 times.
37443 if (sps->frame_mbs_only_flag) {
1749 22948 picture_structure = PICT_FRAME;
1750 } else {
1751
1/4
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✓ Branch 1 taken 14495 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
14495 if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1752 av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1753 return -1;
1754 }
1755 14495 field_pic_flag = get_bits1(&sl->gb);
1756
2/2
✓ Branch 0 taken 9026 times.
✓ Branch 1 taken 5469 times.
14495 if (field_pic_flag) {
1757 9026 bottom_field_flag = get_bits1(&sl->gb);
1758 9026 picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1759 } else {
1760 5469 picture_structure = PICT_FRAME;
1761 }
1762 }
1763 37443 sl->picture_structure = picture_structure;
1764 37443 sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1765
1766
2/2
✓ Branch 0 taken 28417 times.
✓ Branch 1 taken 9026 times.
37443 if (picture_structure == PICT_FRAME) {
1767 28417 sl->curr_pic_num = sl->frame_num;
1768 28417 sl->max_pic_num = 1 << sps->log2_max_frame_num;
1769 } else {
1770 9026 sl->curr_pic_num = 2 * sl->frame_num + 1;
1771 9026 sl->max_pic_num = 1 << (sps->log2_max_frame_num + 1);
1772 }
1773
1774
2/2
✓ Branch 0 taken 2258 times.
✓ Branch 1 taken 35185 times.
37443 if (nal->type == H264_NAL_IDR_SLICE) {
1775 2258 unsigned idr_pic_id = get_ue_golomb_long(&sl->gb);
1776
1/2
✓ Branch 0 taken 2258 times.
✗ Branch 1 not taken.
2258 if (idr_pic_id < 65536) {
1777 2258 sl->idr_pic_id = idr_pic_id;
1778 } else
1779 av_log(h->avctx, AV_LOG_WARNING, "idr_pic_id is invalid\n");
1780 }
1781
1782 37443 sl->poc_lsb = 0;
1783 37443 sl->delta_poc_bottom = 0;
1784
2/2
✓ Branch 0 taken 29663 times.
✓ Branch 1 taken 7780 times.
37443 if (sps->poc_type == 0) {
1785 29663 sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1786
1787
4/4
✓ Branch 0 taken 8524 times.
✓ Branch 1 taken 21139 times.
✓ Branch 2 taken 6632 times.
✓ Branch 3 taken 1892 times.
29663 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1788 6632 sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1789 }
1790
1791 37443 sl->delta_poc[0] = sl->delta_poc[1] = 0;
1792
4/4
✓ Branch 0 taken 3055 times.
✓ Branch 1 taken 34388 times.
✓ Branch 2 taken 2848 times.
✓ Branch 3 taken 207 times.
37443 if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1793 2848 sl->delta_poc[0] = get_se_golomb(&sl->gb);
1794
1795
4/4
✓ Branch 0 taken 770 times.
✓ Branch 1 taken 2078 times.
✓ Branch 2 taken 453 times.
✓ Branch 3 taken 317 times.
2848 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1796 453 sl->delta_poc[1] = get_se_golomb(&sl->gb);
1797 }
1798
1799 37443 sl->redundant_pic_count = 0;
1800
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37443 times.
37443 if (pps->redundant_pic_cnt_present)
1801 sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1802
1803
2/2
✓ Branch 0 taken 13150 times.
✓ Branch 1 taken 24293 times.
37443 if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1804 13150 sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1805
1806 37443 ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1807 &sl->gb, pps, sl->slice_type_nos,
1808 37443 picture_structure, h->avctx);
1809
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37443 times.
37443 if (ret < 0)
1810 return ret;
1811
1812
2/2
✓ Branch 0 taken 32977 times.
✓ Branch 1 taken 4466 times.
37443 if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1813 32977 ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1814
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 32977 times.
32977 if (ret < 0) {
1815 sl->ref_count[1] = sl->ref_count[0] = 0;
1816 return ret;
1817 }
1818 }
1819
1820 37443 sl->pwt.use_weight = 0;
1821
2/2
✓ Branch 0 taken 74886 times.
✓ Branch 1 taken 37443 times.
112329 for (i = 0; i < 2; i++) {
1822 74886 sl->pwt.luma_weight_flag[i] = 0;
1823 74886 sl->pwt.chroma_weight_flag[i] = 0;
1824 }
1825
4/4
✓ Branch 0 taken 4311 times.
✓ Branch 1 taken 33132 times.
✓ Branch 2 taken 1631 times.
✓ Branch 3 taken 2680 times.
37443 if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1826
2/2
✓ Branch 0 taken 386 times.
✓ Branch 1 taken 34377 times.
34763 (pps->weighted_bipred_idc == 1 &&
1827
1/2
✓ Branch 0 taken 386 times.
✗ Branch 1 not taken.
386 sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1828 3066 ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1829 sl->slice_type_nos, &sl->pwt,
1830 3066 picture_structure, h->avctx);
1831
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3066 times.
3066 if (ret < 0)
1832 return ret;
1833 }
1834
1835 37443 sl->explicit_ref_marking = 0;
1836
2/2
✓ Branch 0 taken 24954 times.
✓ Branch 1 taken 12489 times.
37443 if (nal->ref_idc) {
1837 24954 ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1838
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 24954 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
24954 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1839 return AVERROR_INVALIDDATA;
1840 }
1841
1842
4/4
✓ Branch 0 taken 32977 times.
✓ Branch 1 taken 4466 times.
✓ Branch 2 taken 18165 times.
✓ Branch 3 taken 14812 times.
37443 if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1843 18165 tmp = get_ue_golomb_31(&sl->gb);
1844
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 18165 times.
18165 if (tmp > 2) {
1845 av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1846 return AVERROR_INVALIDDATA;
1847 }
1848 18165 sl->cabac_init_idc = tmp;
1849 }
1850
1851 37443 sl->last_qscale_diff = 0;
1852 37443 tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1853
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37443 times.
37443 if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1854 av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1855 return AVERROR_INVALIDDATA;
1856 }
1857 37443 sl->qscale = tmp;
1858 37443 sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1859 37443 sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1860 // FIXME qscale / qp ... stuff
1861
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37443 times.
37443 if (sl->slice_type == AV_PICTURE_TYPE_SP)
1862 get_bits1(&sl->gb); /* sp_for_switch_flag */
1863
1/2
✓ Branch 0 taken 37443 times.
✗ Branch 1 not taken.
37443 if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1864
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 37443 times.
37443 sl->slice_type == AV_PICTURE_TYPE_SI)
1865 get_se_golomb(&sl->gb); /* slice_qs_delta */
1866
1867 37443 sl->deblocking_filter = 1;
1868 37443 sl->slice_alpha_c0_offset = 0;
1869 37443 sl->slice_beta_offset = 0;
1870
2/2
✓ Branch 0 taken 22660 times.
✓ Branch 1 taken 14783 times.
37443 if (pps->deblocking_filter_parameters_present) {
1871 22660 tmp = get_ue_golomb_31(&sl->gb);
1872
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22660 times.
22660 if (tmp > 2) {
1873 av_log(h->avctx, AV_LOG_ERROR,
1874 "deblocking_filter_idc %u out of range\n", tmp);
1875 return AVERROR_INVALIDDATA;
1876 }
1877