FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_slice.c
Date: 2023-06-04 16:45:34
Exec Total Coverage
Lines: 1363 1664 81.9%
Functions: 31 32 96.9%
Branches: 903 1247 72.4%
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/display.h"
32 #include "libavutil/film_grain_params.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/timecode.h"
35 #include "internal.h"
36 #include "decode.h"
37 #include "cabac.h"
38 #include "cabac_functions.h"
39 #include "decode.h"
40 #include "error_resilience.h"
41 #include "avcodec.h"
42 #include "h264.h"
43 #include "h264dec.h"
44 #include "h264data.h"
45 #include "h264chroma.h"
46 #include "h264_ps.h"
47 #include "golomb.h"
48 #include "mathops.h"
49 #include "mpegutils.h"
50 #include "rectangle.h"
51 #include "thread.h"
52 #include "threadframe.h"
53
54 static const uint8_t field_scan[16+1] = {
55 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
56 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
57 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
58 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
59 };
60
61 static const uint8_t field_scan8x8[64+1] = {
62 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
63 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
64 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
65 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
66 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
67 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
68 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
69 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
70 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
71 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
72 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
73 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
74 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
75 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
76 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
77 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
78 };
79
80 static const uint8_t field_scan8x8_cavlc[64+1] = {
81 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
82 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
83 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
84 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
85 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
86 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
87 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
88 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
89 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
90 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
91 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
92 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
93 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
94 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
95 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
96 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
97 };
98
99 // zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
100 static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
101 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
102 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
103 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
104 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
105 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
106 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
107 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
108 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
109 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
110 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
111 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
112 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
113 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
114 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
115 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
116 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
117 };
118
119 27522 static void release_unused_pictures(H264Context *h, int remove_current)
120 {
121 int i;
122
123 /* release non reference frames */
124
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 1018314 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
125
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 990792 if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
126
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 2609 (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
127 22066 ff_h264_unref_picture(h, &h->DPB[i]);
128 }
129 }
130 27522 }
131
132 35519 static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
133 {
134 35519 const H264Context *h = sl->h264;
135 35519 int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
136
137 35519 av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
138 // edge emu needs blocksize + filter length - 1
139 // (= 21x21 for H.264)
140 35519 av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
141
142 35519 av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
143 35519 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
144 35519 av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
145 35519 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
146
147
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 35519 if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
148
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 35519 !sl->top_borders[0] || !sl->top_borders[1]) {
149 ✗ av_freep(&sl->bipred_scratchpad);
150 ✗ av_freep(&sl->edge_emu_buffer);
151 ✗ av_freep(&sl->top_borders[0]);
152 ✗ av_freep(&sl->top_borders[1]);
153
154 ✗ sl->bipred_scratchpad_allocated = 0;
155 ✗ sl->edge_emu_buffer_allocated = 0;
156 ✗ sl->top_borders_allocated[0] = 0;
157 ✗ sl->top_borders_allocated[1] = 0;
158 ✗ return AVERROR(ENOMEM);
159 }
160
161 35519 return 0;
162 }
163
164 574 static int init_table_pools(H264Context *h)
165 {
166 574 const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
167 574 const int mb_array_size = h->mb_stride * h->mb_height;
168 574 const int b4_stride = h->mb_width * 4 + 1;
169 574 const int b4_array_size = b4_stride * h->mb_height * 4;
170
171 574 h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
172 av_buffer_allocz);
173 574 h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) *
174 sizeof(uint32_t), av_buffer_allocz);
175 574 h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) *
176 sizeof(int16_t), av_buffer_allocz);
177 574 h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
178
179
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 574 if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
180
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 574 !h->ref_index_pool) {
181 ✗ av_buffer_pool_uninit(&h->qscale_table_pool);
182 ✗ av_buffer_pool_uninit(&h->mb_type_pool);
183 ✗ av_buffer_pool_uninit(&h->motion_val_pool);
184 ✗ av_buffer_pool_uninit(&h->ref_index_pool);
185 ✗ return AVERROR(ENOMEM);
186 }
187
188 574 return 0;
189 }
190
191 24161 static int alloc_picture(H264Context *h, H264Picture *pic)
192 {
193 24161 int i, ret = 0;
194
195
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 24161 av_assert0(!pic->f->data[0]);
196
197 24161 pic->tf.f = pic->f;
198 24161 ret = ff_thread_get_ext_buffer(h->avctx, &pic->tf,
199 24161 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
200
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 24161 if (ret < 0)
201 ✗ goto fail;
202
203
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 24161 if (pic->needs_fg) {
204 ✗ pic->f_grain->format = pic->f->format;
205 ✗ pic->f_grain->width = pic->f->width;
206 ✗ pic->f_grain->height = pic->f->height;
207 ✗ ret = ff_thread_get_buffer(h->avctx, pic->f_grain, 0);
208 ✗ if (ret < 0)
209 ✗ goto fail;
210 }
211
212
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 24161 if (h->avctx->hwaccel) {
213 ✗ const AVHWAccel *hwaccel = h->avctx->hwaccel;
214 ✗ av_assert0(!pic->hwaccel_picture_private);
215 ✗ if (hwaccel->frame_priv_data_size) {
216 ✗ pic->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(h->avctx, hwaccel);
217 ✗ if (!pic->hwaccel_priv_buf)
218 ✗ return AVERROR(ENOMEM);
219 ✗ pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
220 }
221 }
222 if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
223 int h_chroma_shift, v_chroma_shift;
224 av_pix_fmt_get_chroma_sub_sample(pic->f->format,
225 &h_chroma_shift, &v_chroma_shift);
226
227 for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
228 memset(pic->f->data[1] + pic->f->linesize[1]*i,
229 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
230 memset(pic->f->data[2] + pic->f->linesize[2]*i,
231 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
232 }
233 }
234
235
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 24161 if (!h->qscale_table_pool) {
236 574 ret = init_table_pools(h);
237
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 574 if (ret < 0)
238 ✗ goto fail;
239 }
240
241 24161 pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
242 24161 pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool);
243
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 24161 if (!pic->qscale_table_buf || !pic->mb_type_buf)
244 ✗ goto fail;
245
246 24161 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
247 24161 pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
248
249
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 72483 for (i = 0; i < 2; i++) {
250 48322 pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
251 48322 pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool);
252
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 48322 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
253 ✗ goto fail;
254
255 48322 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
256 48322 pic->ref_index[i] = pic->ref_index_buf[i]->data;
257 }
258
259 24161 pic->pps_buf = av_buffer_ref(h->ps.pps_ref);
260
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 24161 if (!pic->pps_buf)
261 ✗ goto fail;
262 24161 pic->pps = (const PPS*)pic->pps_buf->data;
263
264 24161 pic->mb_width = h->mb_width;
265 24161 pic->mb_height = h->mb_height;
266 24161 pic->mb_stride = h->mb_stride;
267
268 24161 return 0;
269 ✗ fail:
270 ✗ ff_h264_unref_picture(h, pic);
271 ✗ return (ret < 0) ? ret : AVERROR(ENOMEM);
272 }
273
274 24161 static int find_unused_picture(H264Context *h)
275 {
276 int i;
277
278
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 84086 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
279
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 84086 if (!h->DPB[i].f->buf[0])
280 24161 return i;
281 }
282 ✗ return AVERROR_INVALIDDATA;
283 }
284
285
286 #define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
287
288 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
289 (((pic) && (pic) >= (old_ctx)->DPB && \
290 (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \
291 &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
292
293 186 static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
294 H264Context *new_base,
295 H264Context *old_base)
296 {
297 int i;
298
299
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 5270 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
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 5084 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
304 }
305 186 }
306
307 static int h264_slice_header_init(H264Context *h);
308
309 62 int ff_h264_update_thread_context(AVCodecContext *dst,
310 const AVCodecContext *src)
311 {
312 62 H264Context *h = dst->priv_data, *h1 = src->priv_data;
313 62 int inited = h->context_initialized, err = 0;
314 62 int need_reinit = 0;
315 int i, ret;
316
317
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 62 if (dst == src)
318 ✗ return 0;
319
320
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 62 if (inited && !h1->ps.sps)
321 ✗ return AVERROR_INVALIDDATA;
322
323
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 62 if (inited &&
324
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 46 (h->width != h1->width ||
325
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 46 h->height != h1->height ||
326
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 46 h->mb_width != h1->mb_width ||
327
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 46 h->mb_height != h1->mb_height ||
328
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 46 !h->ps.sps ||
329
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 46 h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma ||
330
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 46 h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
331
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 46 h->ps.sps->vui.matrix_coeffs != h1->ps.sps->vui.matrix_coeffs)) {
332 ✗ need_reinit = 1;
333 }
334
335 /* copy block_offset since frame_start may not be called */
336 62 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
337
338 // SPS/PPS
339
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 2046 for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
340 1984 ret = av_buffer_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
341
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 1984 if (ret < 0)
342 ✗ return ret;
343 }
344
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 15934 for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
345 15872 ret = av_buffer_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
346
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 15872 if (ret < 0)
347 ✗ return ret;
348 }
349
350 62 ret = av_buffer_replace(&h->ps.pps_ref, h1->ps.pps_ref);
351
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 62 if (ret < 0)
352 ✗ return ret;
353 62 h->ps.pps = NULL;
354 62 h->ps.sps = NULL;
355
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 62 if (h1->ps.pps_ref) {
356 62 h->ps.pps = (const PPS*)h->ps.pps_ref->data;
357 62 h->ps.sps = h->ps.pps->sps;
358 }
359
360
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 62 if (need_reinit || !inited) {
361 16 h->width = h1->width;
362 16 h->height = h1->height;
363 16 h->mb_height = h1->mb_height;
364 16 h->mb_width = h1->mb_width;
365 16 h->mb_num = h1->mb_num;
366 16 h->mb_stride = h1->mb_stride;
367 16 h->b_stride = h1->b_stride;
368 16 h->x264_build = h1->x264_build;
369
370
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 16 if (h->context_initialized || h1->context_initialized) {
371
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 16 if ((err = h264_slice_header_init(h)) < 0) {
372 ✗ av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
373 ✗ return err;
374 }
375 }
376
377 /* copy block_offset since frame_start may not be called */
378 16 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
379 }
380
381 62 h->avctx->coded_height = h1->avctx->coded_height;
382 62 h->avctx->coded_width = h1->avctx->coded_width;
383 62 h->avctx->width = h1->avctx->width;
384 62 h->avctx->height = h1->avctx->height;
385 62 h->width_from_caller = h1->width_from_caller;
386 62 h->height_from_caller = h1->height_from_caller;
387 62 h->coded_picture_number = h1->coded_picture_number;
388 62 h->first_field = h1->first_field;
389 62 h->picture_structure = h1->picture_structure;
390 62 h->mb_aff_frame = h1->mb_aff_frame;
391 62 h->droppable = h1->droppable;
392
393
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 2294 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
394 2232 ret = ff_h264_replace_picture(h, &h->DPB[i], &h1->DPB[i]);
395
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 2232 if (ret < 0)
396 ✗ return ret;
397 }
398
399
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 62 h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
400 62 ret = ff_h264_replace_picture(h, &h->cur_pic, &h1->cur_pic);
401
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 62 if (ret < 0)
402 ✗ return ret;
403
404 62 h->enable_er = h1->enable_er;
405 62 h->workaround_bugs = h1->workaround_bugs;
406 62 h->droppable = h1->droppable;
407
408 // extradata/NAL handling
409 62 h->is_avc = h1->is_avc;
410 62 h->nal_length_size = h1->nal_length_size;
411
412 62 memcpy(&h->poc, &h1->poc, sizeof(h->poc));
413
414 62 memcpy(h->short_ref, h1->short_ref, sizeof(h->short_ref));
415 62 memcpy(h->long_ref, h1->long_ref, sizeof(h->long_ref));
416 62 memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
417 62 memcpy(h->last_pocs, h1->last_pocs, sizeof(h->last_pocs));
418
419 62 h->next_output_pic = h1->next_output_pic;
420 62 h->next_outputed_poc = h1->next_outputed_poc;
421 62 h->poc_offset = h1->poc_offset;
422
423 62 memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
424 62 h->nb_mmco = h1->nb_mmco;
425 62 h->mmco_reset = h1->mmco_reset;
426 62 h->explicit_ref_marking = h1->explicit_ref_marking;
427 62 h->long_ref_count = h1->long_ref_count;
428 62 h->short_ref_count = h1->short_ref_count;
429
430 62 copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
431 62 copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
432 62 copy_picture_range(h->delayed_pic, h1->delayed_pic,
433 FF_ARRAY_ELEMS(h->delayed_pic), h, h1);
434
435 62 h->frame_recovered = h1->frame_recovered;
436
437 62 ret = ff_h264_sei_ctx_replace(&h->sei, &h1->sei);
438
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 62 if (ret < 0)
439 ✗ return ret;
440
441 62 h->sei.common.unregistered.x264_build = h1->sei.common.unregistered.x264_build;
442
443
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 62 if (!h->cur_pic_ptr)
444 20 return 0;
445
446
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 42 if (!h->droppable) {
447 27 err = ff_h264_execute_ref_pic_marking(h);
448 27 h->poc.prev_poc_msb = h->poc.poc_msb;
449 27 h->poc.prev_poc_lsb = h->poc.poc_lsb;
450 }
451 42 h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
452 42 h->poc.prev_frame_num = h->poc.frame_num;
453
454 42 h->recovery_frame = h1->recovery_frame;
455
456 42 return err;
457 }
458
459 50 int ff_h264_update_thread_context_for_user(AVCodecContext *dst,
460 const AVCodecContext *src)
461 {
462 50 H264Context *h = dst->priv_data;
463 50 const H264Context *h1 = src->priv_data;
464
465 50 h->is_avc = h1->is_avc;
466 50 h->nal_length_size = h1->nal_length_size;
467
468 50 return 0;
469 }
470
471 24161 static int h264_frame_start(H264Context *h)
472 {
473 H264Picture *pic;
474 int i, ret;
475 24161 const int pixel_shift = h->pixel_shift;
476
477
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 24161 if (!ff_thread_can_start_frame(h->avctx)) {
478 ✗ av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
479 ✗ return -1;
480 }
481
482 24161 release_unused_pictures(h, 1);
483 24161 h->cur_pic_ptr = NULL;
484
485 24161 i = find_unused_picture(h);
486
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 24161 if (i < 0) {
487 ✗ av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
488 ✗ return i;
489 }
490 24161 pic = &h->DPB[i];
491
492
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 24161 pic->reference = h->droppable ? 0 : h->picture_structure;
493 #if FF_API_FRAME_PICTURE_NUMBER
494 FF_DISABLE_DEPRECATION_WARNINGS
495 24161 pic->f->coded_picture_number = h->coded_picture_number++;
496 FF_ENABLE_DEPRECATION_WARNINGS
497 #endif
498 24161 pic->field_picture = h->picture_structure != PICT_FRAME;
499 24161 pic->frame_num = h->poc.frame_num;
500 /*
501 * Zero key_frame here; IDR markings per slice in frame or fields are ORed
502 * in later.
503 * See decode_nal_units().
504 */
505 24161 pic->f->flags &= ~AV_FRAME_FLAG_KEY;
506 24161 pic->mmco_reset = 0;
507 24161 pic->recovered = 0;
508 24161 pic->invalid_gap = 0;
509 24161 pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
510
511 24161 pic->f->pict_type = h->slice_ctx[0].slice_type;
512
513 24161 pic->f->crop_left = h->crop_left;
514 24161 pic->f->crop_right = h->crop_right;
515 24161 pic->f->crop_top = h->crop_top;
516 24161 pic->f->crop_bottom = h->crop_bottom;
517
518
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 24161 pic->needs_fg = h->sei.common.film_grain_characteristics.present && !h->avctx->hwaccel &&
519 ✗ !(h->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
520
521
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 24161 if ((ret = alloc_picture(h, pic)) < 0)
522 ✗ return ret;
523
524 24161 h->cur_pic_ptr = pic;
525 24161 ff_h264_unref_picture(h, &h->cur_pic);
526 if (CONFIG_ERROR_RESILIENCE) {
527 24161 ff_h264_set_erpic(&h->er.cur_pic, NULL);
528 }
529
530
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 24161 if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
531 ✗ return ret;
532
533
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 48622 for (i = 0; i < h->nb_slice_ctx; i++) {
534 24461 h->slice_ctx[i].linesize = h->cur_pic_ptr->f->linesize[0];
535 24461 h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
536 }
537
538
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 24161 if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
539 23861 ff_er_frame_start(&h->er);
540 23861 ff_h264_set_erpic(&h->er.last_pic, NULL);
541 23861 ff_h264_set_erpic(&h->er.next_pic, NULL);
542 }
543
544
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 410737 for (i = 0; i < 16; i++) {
545 386576 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
546 386576 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
547 }
548
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 410737 for (i = 0; i < 16; i++) {
549 386576 h->block_offset[16 + i] =
550 386576 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
551 386576 h->block_offset[48 + 16 + i] =
552 386576 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
553 }
554
555 /* We mark the current picture as non-reference after allocating it, so
556 * that if we break out due to an error it can be released automatically
557 * in the next ff_mpv_frame_start().
558 */
559 24161 h->cur_pic_ptr->reference = 0;
560
561 24161 h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
562
563 24161 h->next_output_pic = NULL;
564
565 24161 h->postpone_filter = 0;
566
567
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 24161 h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
568
569
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 24161 if (h->sei.common.unregistered.x264_build >= 0)
570 2046 h->x264_build = h->sei.common.unregistered.x264_build;
571
572 assert(h->cur_pic_ptr->long_ref == 0);
573
574 24161 return 0;
575 }
576
577 12142786 static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
578 uint8_t *src_y,
579 uint8_t *src_cb, uint8_t *src_cr,
580 int linesize, int uvlinesize,
581 int simple)
582 {
583 uint8_t *top_border;
584 12142786 int top_idx = 1;
585 12142786 const int pixel_shift = h->pixel_shift;
586 12142786 int chroma444 = CHROMA444(h);
587 12142786 int chroma422 = CHROMA422(h);
588
589 12142786 src_y -= linesize;
590 12142786 src_cb -= uvlinesize;
591 12142786 src_cr -= uvlinesize;
592
593
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 12142786 if (!simple && FRAME_MBAFF(h)) {
594
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 2016096 if (sl->mb_y & 1) {
595
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 1008048 if (!MB_MBAFF(sl)) {
596 747670 top_border = sl->top_borders[0][sl->mb_x];
597 747670 AV_COPY128(top_border, src_y + 15 * linesize);
598
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 747670 if (pixel_shift)
599 213139 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
600 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
601
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 747670 if (chroma444) {
602 ✗ if (pixel_shift) {
603 ✗ AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
604 ✗ AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
605 ✗ AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
606 ✗ AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
607 } else {
608 ✗ AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
609 ✗ AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
610 }
611
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 747670 } else if (chroma422) {
612
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 106510 if (pixel_shift) {
613 106510 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
614 106510 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
615 } else {
616 ✗ AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
617 ✗ AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
618 }
619 } else {
620
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 641160 if (pixel_shift) {
621 106629 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
622 106629 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
623 } else {
624 534531 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
625 534531 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
626 }
627 }
628 }
629 }
630
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 1008048 } else if (MB_MBAFF(sl)) {
631 260378 top_idx = 0;
632 } else
633 747670 return;
634 }
635
636 11395116 top_border = sl->top_borders[top_idx][sl->mb_x];
637 /* There are two lines saved, the line above the top macroblock
638 * of a pair, and the line above the bottom macroblock. */
639 11395116 AV_COPY128(top_border, src_y + 16 * linesize);
640
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 11395116 if (pixel_shift)
641 1369541 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
642
643 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
644
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 11395116 if (chroma444) {
645
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 80328 if (pixel_shift) {
646 19800 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
647 19800 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
648 19800 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
649 19800 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
650 } else {
651 60528 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
652 60528 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
653 }
654
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 11314788 } else if (chroma422) {
655
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 588635 if (pixel_shift) {
656 584675 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
657 584675 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
658 } else {
659 3960 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
660 3960 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
661 }
662 } else {
663
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 10726153 if (pixel_shift) {
664 765066 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
665 765066 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
666 } else {
667 9961087 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
668 9961087 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
669 }
670 }
671 }
672 }
673
674 /**
675 * Initialize implicit_weight table.
676 * @param field 0/1 initialize the weight for interlaced MBAFF
677 * -1 initializes the rest
678 */
679 3301 static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
680 {
681 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
682
683
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 9903 for (i = 0; i < 2; i++) {
684 6602 sl->pwt.luma_weight_flag[i] = 0;
685 6602 sl->pwt.chroma_weight_flag[i] = 0;
686 }
687
688
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 3301 if (field < 0) {
689
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 1591 if (h->picture_structure == PICT_FRAME) {
690 1591 cur_poc = h->cur_pic_ptr->poc;
691 } else {
692 ✗ cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
693 }
694
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 1591 if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
695
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 97 sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
696 34 sl->pwt.use_weight = 0;
697 34 sl->pwt.use_weight_chroma = 0;
698 34 return;
699 }
700 1557 ref_start = 0;
701 1557 ref_count0 = sl->ref_count[0];
702 1557 ref_count1 = sl->ref_count[1];
703 } else {
704 1710 cur_poc = h->cur_pic_ptr->field_poc[field];
705 1710 ref_start = 16;
706 1710 ref_count0 = 16 + 2 * sl->ref_count[0];
707 1710 ref_count1 = 16 + 2 * sl->ref_count[1];
708 }
709
710 3267 sl->pwt.use_weight = 2;
711 3267 sl->pwt.use_weight_chroma = 2;
712 3267 sl->pwt.luma_log2_weight_denom = 5;
713 3267 sl->pwt.chroma_log2_weight_denom = 5;
714
715
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 14885 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
716 11618 int64_t poc0 = sl->ref_list[0][ref0].poc;
717
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 33325 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
718 21707 int w = 32;
719
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 21707 if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
720 21707 int poc1 = sl->ref_list[1][ref1].poc;
721 21707 int td = av_clip_int8(poc1 - poc0);
722
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 21707 if (td) {
723 21641 int tb = av_clip_int8(cur_poc - poc0);
724 21641 int tx = (16384 + (FFABS(td) >> 1)) / td;
725 21641 int dist_scale_factor = (tb * tx + 32) >> 8;
726
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 21641 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
727 21637 w = 64 - dist_scale_factor;
728 }
729 }
730
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 21707 if (field < 0) {
731 5827 sl->pwt.implicit_weight[ref0][ref1][0] =
732 5827 sl->pwt.implicit_weight[ref0][ref1][1] = w;
733 } else {
734 15880 sl->pwt.implicit_weight[ref0][ref1][field] = w;
735 }
736 }
737 }
738 }
739
740 /**
741 * initialize scan tables
742 */
743 574 static void init_scan_tables(H264Context *h)
744 {
745 int i;
746
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 9758 for (i = 0; i < 16; i++) {
747 #define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
748 9184 h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
749 9184 h->field_scan[i] = TRANSPOSE(field_scan[i]);
750 #undef TRANSPOSE
751 }
752
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 37310 for (i = 0; i < 64; i++) {
753 #define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
754 36736 h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
755 36736 h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
756 36736 h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
757 36736 h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
758 #undef TRANSPOSE
759 }
760
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 574 if (h->ps.sps->transform_bypass) { // FIXME same ugly
761 14 memcpy(h->zigzag_scan_q0 , ff_zigzag_scan , sizeof(h->zigzag_scan_q0 ));
762 14 memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 ));
763 14 memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
764 14 memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 ));
765 14 memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
766 14 memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
767 } else {
768 560 memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 ));
769 560 memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 ));
770 560 memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
771 560 memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 ));
772 560 memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
773 560 memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
774 }
775 574 }
776
777 27099 static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
778 {
779 #define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
780 (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
781 CONFIG_H264_NVDEC_HWACCEL + \
782 CONFIG_H264_VAAPI_HWACCEL + \
783 CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
784 CONFIG_H264_VDPAU_HWACCEL + \
785 CONFIG_H264_VULKAN_HWACCEL)
786 27099 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
787 27099 const enum AVPixelFormat *choices = pix_fmts;
788 int i;
789
790
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 27099 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
2/2
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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;
802 367 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
2/2
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 367 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
2/2
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 316 } 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.
822 152 *fmt++ = AV_PIX_FMT_VAAPI;
823 #endif
824 152 *fmt++ = AV_PIX_FMT_YUV420P10;
825 }
826 367 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 26577 case 8:
853 #if CONFIG_H264_VDPAU_HWACCEL
854 26577 *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
2/2
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 26577 if (CHROMA444(h)) {
867
1/2
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 484 if (h->avctx->colorspace == AVCOL_SPC_RGB)
868 ✗ *fmt++ = AV_PIX_FMT_GBRP;
869
2/2
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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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 26093 } else if (CHROMA422(h)) {
874
1/2
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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_VAAPI_HWACCEL
887 26071 *fmt++ = AV_PIX_FMT_VAAPI;
888 #endif
889
1/2
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 26071 if (h->avctx->codec->pix_fmts)
890 ✗ choices = h->avctx->codec->pix_fmts;
891
2/2
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✓ Branch 1 taken 26068 times.
 26071 else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
892 3 *fmt++ = AV_PIX_FMT_YUVJ420P;
893 else
894 26068 *fmt++ = AV_PIX_FMT_YUV420P;
895 }
896 26577 break;
897 ✗ default:
898 ✗ av_log(h->avctx, AV_LOG_ERROR,
899 ✗ "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
900 ✗ return AVERROR_INVALIDDATA;
901 }
902
903 27099 *fmt = AV_PIX_FMT_NONE;
904
905
2/2
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 80460 for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
906
4/4
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✓ Branch 3 taken 247 times.
 79899 if (choices[i] == h->avctx->pix_fmt && !force_callback)
907 26538 return choices[i];
908 561 return ff_thread_get_format(h->avctx, choices);
909 }
910
911 /* export coded and cropped frame dimensions to AVCodecContext */
912 26849 static void init_dimensions(H264Context *h)
913 {
914 26849 const SPS *sps = (const SPS*)h->ps.sps;
915 26849 int cr = sps->crop_right;
916 26849 int cl = sps->crop_left;
917 26849 int ct = sps->crop_top;
918 26849 int cb = sps->crop_bottom;
919 26849 int width = h->width - (cr + cl);
920 26849 int height = h->height - (ct + cb);
921
1/2
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 26849 av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
922
1/2
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 26849 av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
923
924 /* handle container cropping */
925
3/4
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 26849 if (h->width_from_caller > 0 && h->height_from_caller > 0 &&
926
3/4
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 24613 !sps->crop_top && !sps->crop_left &&
927
2/2
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 24612 FFALIGN(h->width_from_caller, 16) == FFALIGN(width, 16) &&
928
1/2
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 24605 FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
929
2/2
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 24605 h->width_from_caller <= width &&
930
2/2
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 24604 h->height_from_caller <= height) {
931 24602 width = h->width_from_caller;
932 24602 height = h->height_from_caller;
933 24602 cl = 0;
934 24602 ct = 0;
935 24602 cr = h->width - width;
936 24602 cb = h->height - height;
937 } else {
938 2247 h->width_from_caller = 0;
939 2247 h->height_from_caller = 0;
940 }
941
942 26849 h->avctx->coded_width = h->width;
943 26849 h->avctx->coded_height = h->height;
944 26849 h->avctx->width = width;
945 26849 h->avctx->height = height;
946 26849 h->crop_right = cr;
947 26849 h->crop_left = cl;
948 26849 h->crop_top = ct;
949 26849 h->crop_bottom = cb;
950 26849 }
951
952 574 static int h264_slice_header_init(H264Context *h)
953 {
954 574 const SPS *sps = h->ps.sps;
955 int i, ret;
956
957
1/2
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✓ Branch 1 taken 574 times.
 574 if (!sps) {
958 ✗ ret = AVERROR_INVALIDDATA;
959 ✗ goto fail;
960 }
961
962 574 ff_set_sar(h->avctx, sps->vui.sar);
963 574 av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
964 &h->chroma_x_shift, &h->chroma_y_shift);
965
966
2/2
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 574 if (sps->timing_info_present_flag) {
967 164 int64_t den = sps->time_scale;
968
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 164 if (h->x264_build < 44U)
969 ✗ den *= 2;
970 164 av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
971 164 sps->num_units_in_tick * 2, den, 1 << 30);
972 }
973
974 574 ff_h264_free_tables(h);
975
976 574 h->first_field = 0;
977 574 h->prev_interlaced_frame = 1;
978
979 574 init_scan_tables(h);
980 574 ret = ff_h264_alloc_tables(h);
981
1/2
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✓ Branch 1 taken 574 times.
 574 if (ret < 0) {
982 ✗ av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
983 ✗ goto fail;
984 }
985
986
2/4
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 574 if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
987
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 574 sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
988 ) {
989 ✗ av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
990 ✗ sps->bit_depth_luma);
991 ✗ ret = AVERROR_INVALIDDATA;
992 ✗ goto fail;
993 }
994
995 574 h->cur_bit_depth_luma =
996 574 h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
997 574 h->cur_chroma_format_idc = sps->chroma_format_idc;
998 574 h->pixel_shift = sps->bit_depth_luma > 8;
999 574 h->chroma_format_idc = sps->chroma_format_idc;
1000 574 h->bit_depth_luma = sps->bit_depth_luma;
1001
1002 574 ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
1003 574 sps->chroma_format_idc);
1004 574 ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
1005 574 ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
1006 574 ff_h264_pred_init(&h->hpc, AV_CODEC_ID_H264, sps->bit_depth_luma,
1007 574 sps->chroma_format_idc);
1008 574 ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
1009
1010
2/2
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 574 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
1011 573 ff_h264_slice_context_init(h, &h->slice_ctx[0]);
1012 } else {
1013
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 3 for (i = 0; i < h->nb_slice_ctx; i++) {
1014 2 H264SliceContext *sl = &h->slice_ctx[i];
1015
1016 2 sl->h264 = h;
1017 2 sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
1018 2 sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride;
1019 2 sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride;
1020
1021 2 ff_h264_slice_context_init(h, sl);
1022 }
1023 }
1024
1025 574 h->context_initialized = 1;
1026
1027 574 return 0;
1028 ✗ fail:
1029 ✗ ff_h264_free_tables(h);
1030 ✗ h->context_initialized = 0;
1031 ✗ return ret;
1032 }
1033
1034 53082 static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1035 {
1036
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✓ Branch 3 taken 53080 times.
 53082 switch (a) {
1037 2 case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1038 ✗ case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1039 ✗ case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1040 53080 default:
1041 53080 return a;
1042 }
1043 }
1044
1045 26849 static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1046 {
1047 const SPS *sps;
1048 26849 int needs_reinit = 0, must_reinit, ret;
1049
1050
2/2
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 26849 if (first_slice) {
1051 26656 av_buffer_unref(&h->ps.pps_ref);
1052 26656 h->ps.pps = NULL;
1053 26656 h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1054
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✓ Branch 1 taken 26656 times.
 26656 if (!h->ps.pps_ref)
1055 ✗ return AVERROR(ENOMEM);
1056 26656 h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1057 }
1058
1059
2/2
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 26849 if (h->ps.sps != h->ps.pps->sps) {
1060 563 h->ps.sps = (const SPS*)h->ps.pps->sps;
1061
1062
2/2
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 563 if (h->mb_width != h->ps.sps->mb_width ||
1063
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 7 h->mb_height != h->ps.sps->mb_height ||
1064
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 7 h->cur_bit_depth_luma != h->ps.sps->bit_depth_luma ||
1065
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 6 h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1066 )
1067 558 needs_reinit = 1;
1068
1069
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 563 if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||
1070
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 10 h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1071 554 needs_reinit = 1;
1072 }
1073 26849 sps = h->ps.sps;
1074
1075
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 53147 must_reinit = (h->context_initialized &&
1076
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 26298 ( 16*sps->mb_width != h->avctx->coded_width
1077
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 26293 || 16*sps->mb_height != h->avctx->coded_height
1078
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 26293 || h->cur_bit_depth_luma != sps->bit_depth_luma
1079
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 26292 || h->cur_chroma_format_idc != sps->chroma_format_idc
1080
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 26291 || h->mb_width != sps->mb_width
1081
1/2
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 26291 || h->mb_height != sps->mb_height
1082 ));
1083
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 26849 if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1084
2/2
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✓ Branch 4 taken 26538 times.
 26541 || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1085 311 must_reinit = 1;
1086
1087
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 26849 if (first_slice && av_cmp_q(sps->vui.sar, h->avctx->sample_aspect_ratio))
1088 60 must_reinit = 1;
1089
1090
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 26849 if (!h->setup_finished) {
1091 26849 h->avctx->profile = ff_h264_get_profile(sps);
1092 26849 h->avctx->level = sps->level_idc;
1093 26849 h->avctx->refs = sps->ref_frame_count;
1094
1095 26849 h->mb_width = sps->mb_width;
1096 26849 h->mb_height = sps->mb_height;
1097 26849 h->mb_num = h->mb_width * h->mb_height;
1098 26849 h->mb_stride = h->mb_width + 1;
1099
1100 26849 h->b_stride = h->mb_width * 4;
1101
1102 26849 h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1103
1104 26849 h->width = 16 * h->mb_width;
1105 26849 h->height = 16 * h->mb_height;
1106
1107 26849 init_dimensions(h);
1108
1109
2/2
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✓ Branch 1 taken 25634 times.
 26849 if (sps->vui.video_signal_type_present_flag) {
1110 2430 h->avctx->color_range = sps->vui.video_full_range_flag > 0 ? AVCOL_RANGE_JPEG
1111
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 1215 : AVCOL_RANGE_MPEG;
1112
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✓ Branch 1 taken 98 times.
 1215 if (sps->vui.colour_description_present_flag) {
1113
2/2
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 1117 if (h->avctx->colorspace != sps->vui.matrix_coeffs)
1114 18 needs_reinit = 1;
1115 1117 h->avctx->color_primaries = sps->vui.colour_primaries;
1116 1117 h->avctx->color_trc = sps->vui.transfer_characteristics;
1117 1117 h->avctx->colorspace = sps->vui.matrix_coeffs;
1118 }
1119 }
1120
1121
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 26849 if (h->sei.common.alternative_transfer.present &&
1122 ✗ av_color_transfer_name(h->sei.common.alternative_transfer.preferred_transfer_characteristics) &&
1123 ✗ h->sei.common.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1124 ✗ h->avctx->color_trc = h->sei.common.alternative_transfer.preferred_transfer_characteristics;
1125 }
1126 }
1127 26849 h->avctx->chroma_sample_location = sps->vui.chroma_location;
1128
1129
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 26849 if (!h->context_initialized || must_reinit || needs_reinit) {
1130 558 int flush_changes = h->context_initialized;
1131 558 h->context_initialized = 0;
1132
1/2
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 558 if (sl != h->slice_ctx) {
1133 ✗ av_log(h->avctx, AV_LOG_ERROR,
1134 "changing width %d -> %d / height %d -> %d on "
1135 "slice %d\n",
1136 ✗ h->width, h->avctx->coded_width,
1137 ✗ h->height, h->avctx->coded_height,
1138 ✗ h->current_slice + 1);
1139 ✗ return AVERROR_INVALIDDATA;
1140 }
1141
1142 av_assert1(first_slice);
1143
1144
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 558 if (flush_changes)
1145 7 ff_h264_flush_change(h);
1146
1147
1/2
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✓ Branch 2 taken 558 times.
 558 if ((ret = get_pixel_format(h, 1)) < 0)
1148 ✗ return ret;
1149 558 h->avctx->pix_fmt = ret;
1150
1151 558 av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1152 558 "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1153
1154
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 558 if ((ret = h264_slice_header_init(h)) < 0) {
1155 ✗ av_log(h->avctx, AV_LOG_ERROR,
1156 "h264_slice_header_init() failed\n");
1157 ✗ return ret;
1158 }
1159 }
1160
1161 26849 return 0;
1162 }
1163
1164 23483 static int h264_export_frame_props(H264Context *h)
1165 {
1166 23483 const SPS *sps = h->ps.sps;
1167 23483 H264Picture *cur = h->cur_pic_ptr;
1168 23483 AVFrame *out = cur->f;
1169 23483 int interlaced_frame = 0, top_field_first = 0;
1170 int ret;
1171
1172 23483 out->flags &= ~AV_FRAME_FLAG_INTERLACED;
1173 23483 out->repeat_pict = 0;
1174
1175 /* Signal interlacing information externally. */
1176 /* Prioritize picture timing SEI information over used
1177 * decoding process if it exists. */
1178
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 23483 if (h->sei.picture_timing.present) {
1179 1420 int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1180 1420 h->avctx);
1181
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 1420 if (ret < 0) {
1182 ✗ av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1183 ✗ if (h->avctx->err_recognition & AV_EF_EXPLODE)
1184 ✗ return ret;
1185 ✗ h->sei.picture_timing.present = 0;
1186 }
1187 }
1188
1189
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 24895 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1190 1412 H264SEIPictureTiming *pt = &h->sei.picture_timing;
1191
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 1412 switch (pt->pic_struct) {
1192 132 case H264_SEI_PIC_STRUCT_FRAME:
1193 132 break;
1194 376 case H264_SEI_PIC_STRUCT_TOP_FIELD:
1195 case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1196 376 interlaced_frame = 1;
1197 376 break;
1198 737 case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1199 case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1200
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 737 if (FIELD_OR_MBAFF_PICTURE(h))
1201 733 interlaced_frame = 1;
1202 else
1203 // try to flag soft telecine progressive
1204 4 interlaced_frame = !!h->prev_interlaced_frame;
1205 737 break;
1206 167 case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1207 case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1208 /* Signal the possibility of telecined film externally
1209 * (pic_struct 5,6). From these hints, let the applications
1210 * decide if they apply deinterlacing. */
1211 167 out->repeat_pict = 1;
1212 167 break;
1213 ✗ case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1214 ✗ out->repeat_pict = 2;
1215 ✗ break;
1216 ✗ case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1217 ✗ out->repeat_pict = 4;
1218 ✗ break;
1219 }
1220
1221
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 1412 if ((pt->ct_type & 3) &&
1222
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 651 pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1223 487 interlaced_frame = ((pt->ct_type & (1 << 1)) != 0);
1224 } else {
1225 /* Derive interlacing flag from used decoding process. */
1226
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 22071 interlaced_frame = !!FIELD_OR_MBAFF_PICTURE(h);
1227 }
1228 23483 h->prev_interlaced_frame = interlaced_frame;
1229
1230
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 23483 if (cur->field_poc[0] != cur->field_poc[1]) {
1231 /* Derive top_field_first from field pocs. */
1232 3330 top_field_first = (cur->field_poc[0] < cur->field_poc[1]);
1233 } else {
1234
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✓ Branch 3 taken 86 times.
 20153 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1235 /* Use picture timing SEI information. Even if it is a
1236 * information of a past frame, better than nothing. */
1237
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 139 if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1238
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 138 h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1239 3 top_field_first = 1;
1240
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 20014 } else if (interlaced_frame) {
1241 /* Default to top field first when pic_struct_present_flag
1242 * is not set but interlaced frame detected */
1243 2554 top_field_first = 1;
1244 } // else
1245 /* Most likely progressive */
1246 }
1247
1248 23483 out->flags |= (AV_FRAME_FLAG_INTERLACED * interlaced_frame) |
1249 23483 (AV_FRAME_FLAG_TOP_FIELD_FIRST * top_field_first);
1250
1251 23483 ret = ff_h2645_sei_to_frame(out, &h->sei.common, AV_CODEC_ID_H264, h->avctx,
1252 23483 &sps->vui, sps->bit_depth_luma, sps->bit_depth_chroma,
1253 23483 cur->poc + (unsigned)(h->poc_offset << 5));
1254
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 23483 if (ret < 0)
1255 ✗ return ret;
1256
1257
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 23483 if (h->sei.picture_timing.timecode_cnt > 0) {
1258 uint32_t *tc_sd;
1259 char tcbuf[AV_TIMECODE_STR_SIZE];
1260
1261 651 AVFrameSideData *tcside = av_frame_new_side_data(out,
1262 AV_FRAME_DATA_S12M_TIMECODE,
1263 sizeof(uint32_t)*4);
1264
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 651 if (!tcside)
1265 ✗ return AVERROR(ENOMEM);
1266
1267 651 tc_sd = (uint32_t*)tcside->data;
1268 651 tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1269
1270
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 1603 for (int i = 0; i < tc_sd[0]; i++) {
1271 952 int drop = h->sei.picture_timing.timecode[i].dropframe;
1272 952 int hh = h->sei.picture_timing.timecode[i].hours;
1273 952 int mm = h->sei.picture_timing.timecode[i].minutes;
1274 952 int ss = h->sei.picture_timing.timecode[i].seconds;
1275 952 int ff = h->sei.picture_timing.timecode[i].frame;
1276
1277 952 tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1278 952 av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1279 952 av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1280 }
1281 651 h->sei.picture_timing.timecode_cnt = 0;
1282 }
1283
1284 23483 return 0;
1285 }
1286
1287 23483 static int h264_select_output_frame(H264Context *h)
1288 {
1289 23483 const SPS *sps = h->ps.sps;
1290 23483 H264Picture *out = h->cur_pic_ptr;
1291 23483 H264Picture *cur = h->cur_pic_ptr;
1292 int i, pics, out_of_order, out_idx;
1293
1294 23483 cur->mmco_reset = h->mmco_reset;
1295 23483 h->mmco_reset = 0;
1296
1297
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 23483 if (sps->bitstream_restriction_flag ||
1298
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 19951 h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1299 3532 h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1300 }
1301
1302 384761 for (i = 0; 1; i++) {
1303
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 384761 if(i == H264_MAX_DPB_FRAMES || cur->poc < h->last_pocs[i]){
1304
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 23483 if(i)
1305 23483 h->last_pocs[i-1] = cur->poc;
1306 23483 break;
1307
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 361278 } else if(i) {
1308 337795 h->last_pocs[i-1]= h->last_pocs[i];
1309 }
1310 }
1311 23483 out_of_order = H264_MAX_DPB_FRAMES - i;
1312
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 23483 if( cur->f->pict_type == AV_PICTURE_TYPE_B
1313
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 15915 || (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))
1314 12187 out_of_order = FFMAX(out_of_order, 1);
1315
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 23483 if (out_of_order == H264_MAX_DPB_FRAMES) {
1316 ✗ av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1317 ✗ for (i = 1; i < H264_MAX_DPB_FRAMES; i++)
1318 ✗ h->last_pocs[i] = INT_MIN;
1319 ✗ h->last_pocs[0] = cur->poc;
1320 ✗ cur->mmco_reset = 1;
1321
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 23483 } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1322
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 137 int loglevel = h->avctx->frame_num > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1323 137 av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1324 137 h->avctx->has_b_frames = out_of_order;
1325 }
1326
1327 23483 pics = 0;
1328
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 52612 while (h->delayed_pic[pics])
1329 29129 pics++;
1330
1331
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 23483 av_assert0(pics <= H264_MAX_DPB_FRAMES);
1332
1333 23483 h->delayed_pic[pics++] = cur;
1334
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 23483 if (cur->reference == 0)
1335 22008 cur->reference = DELAYED_PIC_REF;
1336
1337 23483 out = h->delayed_pic[0];
1338 23483 out_idx = 0;
1339 23483 for (i = 1; h->delayed_pic[i] &&
1340
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 49714 !(h->delayed_pic[i]->f->flags & AV_FRAME_FLAG_KEY) &&
1341
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 26318 !h->delayed_pic[i]->mmco_reset;
1342 26231 i++)
1343
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 26231 if (h->delayed_pic[i]->poc < out->poc) {
1344 9757 out = h->delayed_pic[i];
1345 9757 out_idx = i;
1346 }
1347
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 23483 if (h->avctx->has_b_frames == 0 &&
1348
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 10250 ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset))
1349 799 h->next_outputed_poc = INT_MIN;
1350 23483 out_of_order = out->poc < h->next_outputed_poc;
1351
1352
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 23483 if (out_of_order || pics > h->avctx->has_b_frames) {
1353 22985 out->reference &= ~DELAYED_PIC_REF;
1354
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 60256 for (i = out_idx; h->delayed_pic[i]; i++)
1355 37271 h->delayed_pic[i] = h->delayed_pic[i + 1];
1356 }
1357
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 23483 if (!out_of_order && pics > h->avctx->has_b_frames) {
1358 22872 h->next_output_pic = out;
1359
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 22872 if (out_idx == 0 && h->delayed_pic[0] && ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset)) {
1360 87 h->next_outputed_poc = INT_MIN;
1361 } else
1362 22785 h->next_outputed_poc = out->poc;
1363
1364
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 22872 if (out->recovered) {
1365 // We have reached an recovery point and all frames after it in
1366 // display order are "recovered".
1367 22781 h->frame_recovered |= FRAME_RECOVERED_SEI;
1368 }
1369 22872 out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1370
1371
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 22872 if (!out->recovered) {
1372
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 78 if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1373
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 78 !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1374 78 h->next_output_pic = NULL;
1375 } else {
1376 ✗ out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1377 }
1378 }
1379 } else {
1380
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 611 av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1381 }
1382
1383 23483 return 0;
1384 }
1385
1386 /* This function is called right after decoding the slice header for a first
1387 * slice in a field (or a frame). It decides whether we are decoding a new frame
1388 * or a second field in a pair and does the necessary setup.
1389 */
1390 26849 static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1391 const H2645NAL *nal, int first_slice)
1392 {
1393 int i;
1394 const SPS *sps;
1395
1396 int last_pic_structure, last_pic_droppable, ret;
1397
1398 26849 ret = h264_init_ps(h, sl, first_slice);
1399
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 26849 if (ret < 0)
1400 ✗ return ret;
1401
1402 26849 sps = h->ps.sps;
1403
1404
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 26849 if (sps && sps->bitstream_restriction_flag &&
1405
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 3864 h->avctx->has_b_frames < sps->num_reorder_frames) {
1406 27 h->avctx->has_b_frames = sps->num_reorder_frames;
1407 }
1408
1409 26849 last_pic_droppable = h->droppable;
1410 26849 last_pic_structure = h->picture_structure;
1411 26849 h->droppable = (nal->ref_idc == 0);
1412 26849 h->picture_structure = sl->picture_structure;
1413
1414 26849 h->poc.frame_num = sl->frame_num;
1415 26849 h->poc.poc_lsb = sl->poc_lsb;
1416 26849 h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1417 26849 h->poc.delta_poc[0] = sl->delta_poc[0];
1418 26849 h->poc.delta_poc[1] = sl->delta_poc[1];
1419
1420
2/2
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 26849 if (nal->type == H264_NAL_IDR_SLICE)
1421 1037 h->poc_offset = sl->idr_pic_id;
1422
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✓ Branch 1 taken 25812 times.
 25812 else if (h->picture_intra_only)
1423 ✗ h->poc_offset = 0;
1424
1425 /* Shorten frame num gaps so we don't have to allocate reference
1426 * frames just to throw them away */
1427
2/2
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 26849 if (h->poc.frame_num != h->poc.prev_frame_num) {
1428 15296 int unwrap_prev_frame_num = h->poc.prev_frame_num;
1429 15296 int max_frame_num = 1 << sps->log2_max_frame_num;
1430
1431
2/2
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 15296 if (unwrap_prev_frame_num > h->poc.frame_num)
1432 169 unwrap_prev_frame_num -= max_frame_num;
1433
1434
2/2
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 15296 if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1435 68 unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1436
2/2
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✓ Branch 1 taken 66 times.
 68 if (unwrap_prev_frame_num < 0)
1437 2 unwrap_prev_frame_num += max_frame_num;
1438
1439 68 h->poc.prev_frame_num = unwrap_prev_frame_num;
1440 }
1441 }
1442
1443 /* See if we have a decoded first field looking for a pair...
1444 * Here, we're using that to see if we should mark previously
1445 * decode frames as "finished".
1446 * We have to do that before the "dummy" in-between frame allocation,
1447 * since that can modify h->cur_pic_ptr. */
1448
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 26849 if (h->first_field) {
1449 3361 int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1450
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 3361 av_assert0(h->cur_pic_ptr);
1451
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 3361 av_assert0(h->cur_pic_ptr->f->buf[0]);
1452 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1453
1454 /* Mark old field/frame as completed */
1455
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✗ Branch 1 not taken.
 3361 if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1456 3361 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1457 }
1458
1459 /* figure out if we have a complementary field pair */
1460
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 3361 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1461 /* Previous field is unmatched. Don't display it, but let it
1462 * remain for reference if marked as such. */
1463 ✗ if (last_pic_structure != PICT_FRAME) {
1464 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1465 last_pic_structure == PICT_TOP_FIELD);
1466 }
1467 } else {
1468
1/2
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 3361 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1469 /* This and previous field were reference, but had
1470 * different frame_nums. Consider this field first in
1471 * pair. Throw away previous field except for reference
1472 * purposes. */
1473 ✗ if (last_pic_structure != PICT_FRAME) {
1474 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1475 last_pic_structure == PICT_TOP_FIELD);
1476 }
1477 } else {
1478 /* Second field in complementary pair */
1479
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 3361 if (!((last_pic_structure == PICT_TOP_FIELD &&
1480
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 3353 h->picture_structure == PICT_BOTTOM_FIELD) ||
1481 8 (last_pic_structure == PICT_BOTTOM_FIELD &&
1482
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✓ Branch 1 taken 8 times.
 8 h->picture_structure == PICT_TOP_FIELD))) {
1483 ✗ av_log(h->avctx, AV_LOG_ERROR,
1484 "Invalid field mode combination %d/%d\n",
1485 last_pic_structure, h->picture_structure);
1486 ✗ h->picture_structure = last_pic_structure;
1487 ✗ h->droppable = last_pic_droppable;
1488 ✗ return AVERROR_INVALIDDATA;
1489
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✓ Branch 1 taken 3361 times.
 3361 } else if (last_pic_droppable != h->droppable) {
1490 ✗ avpriv_request_sample(h->avctx,
1491 "Found reference and non-reference fields in the same frame, which");
1492 ✗ h->picture_structure = last_pic_structure;
1493 ✗ h->droppable = last_pic_droppable;
1494 ✗ return AVERROR_PATCHWELCOME;
1495 }
1496 }
1497 }
1498 }
1499
1500
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 54371 while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1501
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 15969 h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1502
2/2
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✓ Branch 1 taken 26 times.
 673 const H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1503 673 av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1504 h->poc.frame_num, h->poc.prev_frame_num);
1505
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✓ Branch 1 taken 577 times.
 673 if (!sps->gaps_in_frame_num_allowed_flag)
1506
2/2
✓ Branch 0 taken 1536 times.
✓ Branch 1 taken 96 times.
 1632 for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1507 1536 h->last_pocs[i] = INT_MIN;
1508 673 ret = h264_frame_start(h);
1509
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 673 times.
 673 if (ret < 0) {
1510 ✗ h->first_field = 0;
1511 ✗ return ret;
1512 }
1513
1514 673 h->poc.prev_frame_num++;
1515 673 h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num;
1516 673 h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1517 673 h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1518 673 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1519 673 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1520
1521 673 h->explicit_ref_marking = 0;
1522 673 ret = ff_h264_execute_ref_pic_marking(h);
1523
1/4
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✓ Branch 1 taken 673 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 673 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1524 ✗ return ret;
1525 /* Error concealment: If a ref is missing, copy the previous ref
1526 * in its place.
1527 * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1528 * many assumptions about there being no actual duplicates.
1529 * FIXME: This does not copy padding for out-of-frame motion
1530 * vectors. Given we are concealing a lost frame, this probably
1531 * is not noticeable by comparison, but it should be fixed. */
1532
1/2
✓ Branch 0 taken 673 times.
✗ Branch 1 not taken.
 673 if (h->short_ref_count) {
1533 673 int c[4] = {
1534 673 1<<(h->ps.sps->bit_depth_luma-1),
1535 673 1<<(h->ps.sps->bit_depth_chroma-1),
1536 673 1<<(h->ps.sps->bit_depth_chroma-1),
1537 -1
1538 };
1539
1540
2/2
✓ Branch 0 taken 647 times.
✓ Branch 1 taken 26 times.
 673 if (prev &&
1541
1/2
✓ Branch 0 taken 647 times.
✗ Branch 1 not taken.
 647 h->short_ref[0]->f->width == prev->f->width &&
1542
1/2
✓ Branch 0 taken 647 times.
✗ Branch 1 not taken.
 647 h->short_ref[0]->f->height == prev->f->height &&
1543
1/2
✓ Branch 0 taken 647 times.
✗ Branch 1 not taken.
 647 h->short_ref[0]->f->format == prev->f->format) {
1544 647 ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1545
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 619 times.
 647 if (prev->field_picture)
1546 28 ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1547 647 ff_thread_release_ext_buffer(h->avctx, &h->short_ref[0]->tf);
1548 647 h->short_ref[0]->tf.f = h->short_ref[0]->f;
1549 647 ret = ff_thread_ref_frame(&h->short_ref[0]->tf, &prev->tf);
1550
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 647 times.
 647 if (ret < 0)
1551 ✗ return ret;
1552 647 h->short_ref[0]->poc = prev->poc + 2U;
1553 647 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 0);
1554
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 619 times.
 647 if (h->short_ref[0]->field_picture)
1555 28 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 1);
1556
3/4
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✓ Branch 1 taken 8 times.
✓ Branch 2 taken 18 times.
✗ Branch 3 not taken.
 26 } else if (!h->frame_recovered && !h->avctx->hwaccel)
1557 18 ff_color_frame(h->short_ref[0]->f, c);
1558 673 h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1559 }
1560 }
1561
1562 /* See if we have a decoded first field looking for a pair...
1563 * We're using that to see whether to continue decoding in that
1564 * frame, or to allocate a new one. */
1565
2/2
✓ Branch 0 taken 3361 times.
✓ Branch 1 taken 23488 times.
 26849 if (h->first_field) {
1566
1/2
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✓ Branch 1 taken 3361 times.
 3361 av_assert0(h->cur_pic_ptr);
1567
1/2
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✓ Branch 1 taken 3361 times.
 3361 av_assert0(h->cur_pic_ptr->f->buf[0]);
1568 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1569
1570 /* figure out if we have a complementary field pair */
1571
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 3361 times.
 3361 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1572 /* Previous field is unmatched. Don't display it, but let it
1573 * remain for reference if marked as such. */
1574 ✗ h->missing_fields ++;
1575 ✗ h->cur_pic_ptr = NULL;
1576 ✗ h->first_field = FIELD_PICTURE(h);
1577 } else {
1578 3361 h->missing_fields = 0;
1579
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3361 times.
 3361 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1580 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1581 ✗ h->picture_structure==PICT_BOTTOM_FIELD);
1582 /* This and the previous field had different frame_nums.
1583 * Consider this field first in pair. Throw away previous
1584 * one except for reference purposes. */
1585 ✗ h->first_field = 1;
1586 ✗ h->cur_pic_ptr = NULL;
1587
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3361 times.
 3361 } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1588 /* This frame was already output, we cannot draw into it
1589 * anymore.
1590 */
1591 ✗ h->first_field = 1;
1592 ✗ h->cur_pic_ptr = NULL;
1593 } else {
1594 /* Second field in complementary pair */
1595 3361 h->first_field = 0;
1596 }
1597 }
1598 } else {
1599 /* Frame or first field in a potentially complementary pair */
1600 23488 h->first_field = FIELD_PICTURE(h);
1601 }
1602
1603
4/4
✓ Branch 0 taken 6727 times.
✓ Branch 1 taken 20122 times.
✓ Branch 2 taken 3366 times.
✓ Branch 3 taken 3361 times.
 26849 if (!FIELD_PICTURE(h) || h->first_field) {
1604
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 23488 times.
 23488 if (h264_frame_start(h) < 0) {
1605 ✗ h->first_field = 0;
1606 ✗ return AVERROR_INVALIDDATA;
1607 }
1608 } else {
1609 3361 int field = h->picture_structure == PICT_BOTTOM_FIELD;
1610 3361 release_unused_pictures(h, 0);
1611 3361 h->cur_pic_ptr->tf.owner[field] = h->avctx;
1612 }
1613 /* Some macroblocks can be accessed before they're available in case
1614 * of lost slices, MBAFF or threading. */
1615
2/2
✓ Branch 0 taken 6727 times.
✓ Branch 1 taken 20122 times.
 26849 if (FIELD_PICTURE(h)) {
1616
2/2
✓ Branch 0 taken 168207 times.
✓ Branch 1 taken 6727 times.
 174934 for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1617 168207 memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1618 } else {
1619 20122 memset(h->slice_table, -1,
1620 20122 (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1621 }
1622
1623 26849 ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1624 26849 h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1625
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26849 times.
 26849 if (ret < 0)
1626 ✗ return ret;
1627
1628 26849 memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1629 26849 h->nb_mmco = sl->nb_mmco;
1630 26849 h->explicit_ref_marking = sl->explicit_ref_marking;
1631
1632 26849 h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1633
1634
2/2
✓ Branch 0 taken 66 times.
✓ Branch 1 taken 26783 times.
 26849 if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1635 66 const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1636
1637
4/4
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 41 times.
✓ Branch 2 taken 11 times.
✓ Branch 3 taken 14 times.
 66 if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1638 52 h->valid_recovery_point = 1;
1639
1640
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 65 times.
 66 if ( h->recovery_frame < 0
1641
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1642 65 h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1643
1644
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 59 times.
 65 if (!h->valid_recovery_point)
1645 6 h->recovery_frame = h->poc.frame_num;
1646 }
1647 }
1648
1649
2/2
✓ Branch 0 taken 1037 times.
✓ Branch 1 taken 25812 times.
 26849 h->cur_pic_ptr->f->flags |= AV_FRAME_FLAG_KEY * !!(nal->type == H264_NAL_IDR_SLICE);
1650
1651
2/2
✓ Branch 0 taken 25812 times.
✓ Branch 1 taken 1037 times.
 26849 if (nal->type == H264_NAL_IDR_SLICE ||
1652
4/4
✓ Branch 0 taken 55 times.
✓ Branch 1 taken 25757 times.
✓ Branch 2 taken 53 times.
✓ Branch 3 taken 2 times.
 25812 (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1653 1090 h->recovery_frame = -1;
1654 1090 h->cur_pic_ptr->recovered = 1;
1655 }
1656 // If we have an IDR, all frames after it in decoded order are
1657 // "recovered".
1658
2/2
✓ Branch 0 taken 1037 times.
✓ Branch 1 taken 25812 times.
 26849 if (nal->type == H264_NAL_IDR_SLICE)
1659 1037 h->frame_recovered |= FRAME_RECOVERED_IDR;
1660 #if 1
1661 26849 h->cur_pic_ptr->recovered |= h->frame_recovered;
1662 #else
1663 h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1664 #endif
1665
1666 /* Set the frame properties/side data. Only done for the second field in
1667 * field coded frames, since some SEI information is present for each field
1668 * and is merged by the SEI parsing code. */
1669
5/6
✓ Branch 0 taken 6727 times.
✓ Branch 1 taken 20122 times.
✓ Branch 2 taken 3366 times.
✓ Branch 3 taken 3361 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 3366 times.
 26849 if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1670 23483 ret = h264_export_frame_props(h);
1671
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 23483 times.
 23483 if (ret < 0)
1672 ✗ return ret;
1673
1674 23483 ret = h264_select_output_frame(h);
1675
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 23483 times.
 23483 if (ret < 0)
1676 ✗ return ret;
1677 }
1678
1679 26849 return 0;
1680 }
1681
1682 35766 static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1683 const H2645NAL *nal)
1684 {
1685 const SPS *sps;
1686 const PPS *pps;
1687 int ret;
1688 unsigned int slice_type, tmp, i;
1689 int field_pic_flag, bottom_field_flag;
1690
4/4
✓ Branch 0 taken 35316 times.
✓ Branch 1 taken 450 times.
✓ Branch 2 taken 26899 times.
✓ Branch 3 taken 8417 times.
 35766 int first_slice = sl == h->slice_ctx && !h->current_slice;
1691 int picture_structure;
1692
1693
2/2
✓ Branch 0 taken 26899 times.
✓ Branch 1 taken 8867 times.
 35766 if (first_slice)
1694
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26899 times.
 26899 av_assert0(!h->setup_finished);
1695
1696 35766 sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1697
1698 35766 slice_type = get_ue_golomb_31(&sl->gb);
1699
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 35766 times.
 35766 if (slice_type > 9) {
1700 ✗ av_log(h->avctx, AV_LOG_ERROR,
1701 "slice type %d too large at %d\n",
1702 slice_type, sl->first_mb_addr);
1703 ✗ return AVERROR_INVALIDDATA;
1704 }
1705
2/2
✓ Branch 0 taken 22512 times.
✓ Branch 1 taken 13254 times.
 35766 if (slice_type > 4) {
1706 22512 slice_type -= 5;
1707 22512 sl->slice_type_fixed = 1;
1708 } else
1709 13254 sl->slice_type_fixed = 0;
1710
1711 35766 slice_type = ff_h264_golomb_to_pict_type[slice_type];
1712 35766 sl->slice_type = slice_type;
1713 35766 sl->slice_type_nos = slice_type & 3;
1714
1715
2/2
✓ Branch 0 taken 2115 times.
✓ Branch 1 taken 33651 times.
 35766 if (nal->type == H264_NAL_IDR_SLICE &&
1716
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2115 times.
 2115 sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1717 ✗ av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1718 ✗ return AVERROR_INVALIDDATA;
1719 }
1720
1721 35766 sl->pps_id = get_ue_golomb(&sl->gb);
1722
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 35766 times.
 35766 if (sl->pps_id >= MAX_PPS_COUNT) {
1723 ✗ av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1724 ✗ return AVERROR_INVALIDDATA;
1725 }
1726
2/2
✓ Branch 0 taken 167 times.
✓ Branch 1 taken 35599 times.
 35766 if (!h->ps.pps_list[sl->pps_id]) {
1727 167 av_log(h->avctx, AV_LOG_ERROR,
1728 "non-existing PPS %u referenced\n",
1729 sl->pps_id);
1730 167 return AVERROR_INVALIDDATA;
1731 }
1732 35599 pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1733 35599 sps = pps->sps;
1734
1735 35599 sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1736
2/2
✓ Branch 0 taken 8863 times.
✓ Branch 1 taken 26736 times.
 35599 if (!first_slice) {
1737
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8863 times.
 8863 if (h->poc.frame_num != sl->frame_num) {
1738 ✗ av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1739 ✗ h->poc.frame_num, sl->frame_num);
1740 ✗ return AVERROR_INVALIDDATA;
1741 }
1742 }
1743
1744 35599 sl->mb_mbaff = 0;
1745
1746
2/2
✓ Branch 0 taken 21112 times.
✓ Branch 1 taken 14487 times.
 35599 if (sps->frame_mbs_only_flag) {
1747 21112 picture_structure = PICT_FRAME;
1748 } else {
1749
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 14487 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 14487 if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1750 ✗ av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1751 ✗ return -1;
1752 }
1753 14487 field_pic_flag = get_bits1(&sl->gb);
1754
2/2
✓ Branch 0 taken 9024 times.
✓ Branch 1 taken 5463 times.
 14487 if (field_pic_flag) {
1755 9024 bottom_field_flag = get_bits1(&sl->gb);
1756 9024 picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1757 } else {
1758 5463 picture_structure = PICT_FRAME;
1759 }
1760 }
1761 35599 sl->picture_structure = picture_structure;
1762 35599 sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1763
1764
2/2
✓ Branch 0 taken 26575 times.
✓ Branch 1 taken 9024 times.
 35599 if (picture_structure == PICT_FRAME) {
1765 26575 sl->curr_pic_num = sl->frame_num;
1766 26575 sl->max_pic_num = 1 << sps->log2_max_frame_num;
1767 } else {
1768 9024 sl->curr_pic_num = 2 * sl->frame_num + 1;
1769 9024 sl->max_pic_num = 1 << (sps->log2_max_frame_num + 1);
1770 }
1771
1772
2/2
✓ Branch 0 taken 2110 times.
✓ Branch 1 taken 33489 times.
 35599 if (nal->type == H264_NAL_IDR_SLICE) {
1773 2110 unsigned idr_pic_id = get_ue_golomb_long(&sl->gb);
1774
1/2
✓ Branch 0 taken 2110 times.
✗ Branch 1 not taken.
 2110 if (idr_pic_id < 65536) {
1775 2110 sl->idr_pic_id = idr_pic_id;
1776 } else
1777 ✗ av_log(h->avctx, AV_LOG_WARNING, "idr_pic_id is invalid\n");
1778 }
1779
1780 35599 sl->poc_lsb = 0;
1781 35599 sl->delta_poc_bottom = 0;
1782
2/2
✓ Branch 0 taken 27819 times.
✓ Branch 1 taken 7780 times.
 35599 if (sps->poc_type == 0) {
1783 27819 sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1784
1785
4/4
✓ Branch 0 taken 8048 times.
✓ Branch 1 taken 19771 times.
✓ Branch 2 taken 6156 times.
✓ Branch 3 taken 1892 times.
 27819 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1786 6156 sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1787 }
1788
1789 35599 sl->delta_poc[0] = sl->delta_poc[1] = 0;
1790
4/4
✓ Branch 0 taken 3055 times.
✓ Branch 1 taken 32544 times.
✓ Branch 2 taken 2848 times.
✓ Branch 3 taken 207 times.
 35599 if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1791 2848 sl->delta_poc[0] = get_se_golomb(&sl->gb);
1792
1793
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)
1794 453 sl->delta_poc[1] = get_se_golomb(&sl->gb);
1795 }
1796
1797 35599 sl->redundant_pic_count = 0;
1798
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 35599 times.
 35599 if (pps->redundant_pic_cnt_present)
1799 ✗ sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1800
1801
2/2
✓ Branch 0 taken 12498 times.
✓ Branch 1 taken 23101 times.
 35599 if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1802 12498 sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1803
1804 35599 ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1805 &sl->gb, pps, sl->slice_type_nos,
1806 35599 picture_structure, h->avctx);
1807
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 35599 times.
 35599 if (ret < 0)
1808 ✗ return ret;
1809
1810
2/2
✓ Branch 0 taken 31281 times.
✓ Branch 1 taken 4318 times.
 35599 if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1811 31281 ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1812
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 31281 times.
 31281 if (ret < 0) {
1813 ✗ sl->ref_count[1] = sl->ref_count[0] = 0;
1814 ✗ return ret;
1815 }
1816 }
1817
1818 35599 sl->pwt.use_weight = 0;
1819
2/2
✓ Branch 0 taken 71198 times.
✓ Branch 1 taken 35599 times.
 106797 for (i = 0; i < 2; i++) {
1820 71198 sl->pwt.luma_weight_flag[i] = 0;
1821 71198 sl->pwt.chroma_weight_flag[i] = 0;
1822 }
1823
4/4
✓ Branch 0 taken 2946 times.
✓ Branch 1 taken 32653 times.
✓ Branch 2 taken 1076 times.
✓ Branch 3 taken 1870 times.
 35599 if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1824
2/2
✓ Branch 0 taken 386 times.
✓ Branch 1 taken 33343 times.
 33729 (pps->weighted_bipred_idc == 1 &&
1825
1/2
✓ Branch 0 taken 386 times.
✗ Branch 1 not taken.
 386 sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1826 2256 ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1827 sl->slice_type_nos, &sl->pwt,
1828 2256 picture_structure, h->avctx);
1829
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2256 times.
 2256 if (ret < 0)
1830 ✗ return ret;
1831 }
1832
1833 35599 sl->explicit_ref_marking = 0;
1834
2/2
✓ Branch 0 taken 23841 times.
✓ Branch 1 taken 11758 times.
 35599 if (nal->ref_idc) {
1835 23841 ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1836
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 23841 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 23841 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1837 ✗ return AVERROR_INVALIDDATA;
1838 }
1839
1840
4/4
✓ Branch 0 taken 31281 times.
✓ Branch 1 taken 4318 times.
✓ Branch 2 taken 16813 times.
✓ Branch 3 taken 14468 times.
 35599 if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1841 16813 tmp = get_ue_golomb_31(&sl->gb);
1842
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 16813 times.
 16813 if (tmp > 2) {
1843 ✗ av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1844 ✗ return AVERROR_INVALIDDATA;
1845 }
1846 16813 sl->cabac_init_idc = tmp;
1847 }
1848
1849 35599 sl->last_qscale_diff = 0;
1850 35599 tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1851
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 35599 if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1852 ✗ av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1853 ✗ return AVERROR_INVALIDDATA;
1854 }
1855 35599 sl->qscale = tmp;
1856 35599 sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1857 35599 sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1858 // FIXME qscale / qp ... stuff
1859
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 35599 if (sl->slice_type == AV_PICTURE_TYPE_SP)
1860 ✗ get_bits1(&sl->gb); /* sp_for_switch_flag */
1861
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 35599 if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1862
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 35599 sl->slice_type == AV_PICTURE_TYPE_SI)
1863 ✗ get_se_golomb(&sl->gb); /* slice_qs_delta */
1864
1865 35599 sl->deblocking_filter = 1;
1866 35599 sl->slice_alpha_c0_offset = 0;
1867 35599 sl->slice_beta_offset = 0;
1868
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 35599 if (pps->deblocking_filter_parameters_present) {
1869 20838 tmp = get_ue_golomb_31(&sl->gb);
1870
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 20838 if (tmp > 2) {
1871 ✗ av_log(h->avctx,