FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_slice.c
Date: 2026-02-12 10:37:11
Exec Total Coverage
Lines: 1374 1675 82.0%
Functions: 32 33 97.0%
Branches: 921 1261 73.0%
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 "libavutil/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 29557 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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 1093609 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
123
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 1064052 if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
124
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 2627 (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
125 23957 ff_h264_unref_picture(&h->DPB[i]);
126 }
127 }
128 29557 }
129
130 38042 static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
131 {
132 38042 const H264Context *h = sl->h264;
133 38042 int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
134
135 38042 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 38042 av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
139
140 38042 av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
141 38042 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142 38042 av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
143 38042 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
144
145
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 38042 if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
146
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 38042 !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 38042 return 0;
160 }
161
162 617 static int init_table_pools(H264Context *h)
163 {
164 617 const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
165 617 const int mb_array_size = h->mb_stride * h->mb_height;
166 617 const int b4_stride = h->mb_width * 4 + 1;
167 617 const int b4_array_size = b4_stride * h->mb_height * 4;
168
169 617 h->qscale_table_pool = av_refstruct_pool_alloc(big_mb_num + h->mb_stride, 0);
170 617 h->mb_type_pool = av_refstruct_pool_alloc((big_mb_num + h->mb_stride) *
171 sizeof(uint32_t), 0);
172 617 h->motion_val_pool = av_refstruct_pool_alloc(2 * (b4_array_size + 4) *
173 sizeof(int16_t), 0);
174 617 h->ref_index_pool = av_refstruct_pool_alloc(4 * mb_array_size, 0);
175
176
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 617 if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
177
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 617 !h->ref_index_pool) {
178 ✗ av_refstruct_pool_uninit(&h->qscale_table_pool);
179 ✗ av_refstruct_pool_uninit(&h->mb_type_pool);
180 ✗ av_refstruct_pool_uninit(&h->motion_val_pool);
181 ✗ av_refstruct_pool_uninit(&h->ref_index_pool);
182 ✗ return AVERROR(ENOMEM);
183 }
184
185 617 return 0;
186 }
187
188 26139 static int alloc_picture(H264Context *h, H264Picture *pic)
189 {
190 26139 int i, ret = 0;
191
192
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 26139 av_assert0(!pic->f->data[0]);
193
194
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 26139 if (h->sei.common.lcevc.info) {
195 ✗ HEVCSEILCEVC *lcevc = &h->sei.common.lcevc;
196 ✗ ret = ff_frame_new_side_data_from_buf(h->avctx, pic->f, AV_FRAME_DATA_LCEVC, &lcevc->info);
197 ✗ if (ret < 0)
198 ✗ return ret;
199 }
200
201 26139 pic->tf.f = pic->f;
202 26139 ret = ff_thread_get_ext_buffer(h->avctx, &pic->tf,
203 26139 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
204
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 26139 if (ret < 0)
205 ✗ goto fail;
206
207
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 26139 if (pic->needs_fg) {
208 ✗ pic->f_grain->format = pic->f->format;
209 ✗ pic->f_grain->width = pic->f->width;
210 ✗ pic->f_grain->height = pic->f->height;
211 ✗ ret = ff_thread_get_buffer(h->avctx, pic->f_grain, 0);
212 ✗ if (ret < 0)
213 ✗ goto fail;
214 }
215
216 26139 ret = ff_hwaccel_frame_priv_alloc(h->avctx, &pic->hwaccel_picture_private);
217
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 26139 if (ret < 0)
218 ✗ goto fail;
219
220
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 26139 if (h->decode_error_flags_pool) {
221 42 pic->decode_error_flags = av_refstruct_pool_get(h->decode_error_flags_pool);
222
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 42 if (!pic->decode_error_flags)
223 ✗ goto fail;
224 42 atomic_init(pic->decode_error_flags, 0);
225 }
226
227 if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
228 int h_chroma_shift, v_chroma_shift;
229 av_pix_fmt_get_chroma_sub_sample(pic->f->format,
230 &h_chroma_shift, &v_chroma_shift);
231
232 for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
233 memset(pic->f->data[1] + pic->f->linesize[1]*i,
234 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
235 memset(pic->f->data[2] + pic->f->linesize[2]*i,
236 0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
237 }
238 }
239
240
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 26139 if (!h->qscale_table_pool) {
241 617 ret = init_table_pools(h);
242
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 617 if (ret < 0)
243 ✗ goto fail;
244 }
245
246 26139 pic->qscale_table_base = av_refstruct_pool_get(h->qscale_table_pool);
247 26139 pic->mb_type_base = av_refstruct_pool_get(h->mb_type_pool);
248
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 26139 if (!pic->qscale_table_base || !pic->mb_type_base)
249 ✗ goto fail;
250
251 26139 pic->mb_type = pic->mb_type_base + 2 * h->mb_stride + 1;
252 26139 pic->qscale_table = pic->qscale_table_base + 2 * h->mb_stride + 1;
253
254
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 78417 for (i = 0; i < 2; i++) {
255 52278 pic->motion_val_base[i] = av_refstruct_pool_get(h->motion_val_pool);
256 52278 pic->ref_index[i] = av_refstruct_pool_get(h->ref_index_pool);
257
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 52278 if (!pic->motion_val_base[i] || !pic->ref_index[i])
258 ✗ goto fail;
259
260 52278 pic->motion_val[i] = pic->motion_val_base[i] + 4;
261 }
262
263 26139 pic->pps = av_refstruct_ref_c(h->ps.pps);
264
265 26139 pic->mb_width = h->mb_width;
266 26139 pic->mb_height = h->mb_height;
267 26139 pic->mb_stride = h->mb_stride;
268
269 26139 return 0;
270 ✗ fail:
271 ✗ ff_h264_unref_picture(pic);
272 ✗ return (ret < 0) ? ret : AVERROR(ENOMEM);
273 }
274
275 26139 static int find_unused_picture(const H264Context *h)
276 {
277 int i;
278
279
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 88226 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
280
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 88226 if (!h->DPB[i].f->buf[0])
281 26139 return i;
282 }
283 ✗ return AVERROR_INVALIDDATA;
284 }
285
286
287 #define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
288
289 #define REBASE_PICTURE(pic, new_ctx, old_ctx) \
290 (((pic) && (pic) >= (old_ctx)->DPB && \
291 (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \
292 &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
293
294 174 static void copy_picture_range(H264Picture **to, H264Picture *const *from, int count,
295 H264Context *new_base, const H264Context *old_base)
296 {
297 int i;
298
299
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 4930 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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 4756 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
304 }
305 174 }
306
307 26 static void color_frame(AVFrame *frame, const int c[4])
308 {
309 26 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
310
311
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 26 av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
312
313
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 104 for (int p = 0; p < desc->nb_components; p++) {
314 78 uint8_t *dst = frame->data[p];
315
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 78 int is_chroma = p == 1 || p == 2;
316
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 78 int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
317
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 78 int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
318
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 78 if (desc->comp[0].depth >= 9) {
319 ✗ ((uint16_t*)dst)[0] = c[p];
320 ✗ av_memcpy_backptr(dst + 2, 2, bytes - 2);
321 ✗ dst += frame->linesize[p];
322 ✗ for (int y = 1; y < height; y++) {
323 ✗ memcpy(dst, frame->data[p], 2*bytes);
324 ✗ dst += frame->linesize[p];
325 }
326 } else {
327
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 31246 for (int y = 0; y < height; y++) {
328 31168 memset(dst, c[p], bytes);
329 31168 dst += frame->linesize[p];
330 }
331 }
332 }
333 26 }
334
335 static int h264_slice_header_init(H264Context *h);
336
337 58 int ff_h264_update_thread_context(AVCodecContext *dst,
338 const AVCodecContext *src)
339 {
340 58 H264Context *h = dst->priv_data, *h1 = src->priv_data;
341 58 int inited = h->context_initialized, err = 0;
342 58 int need_reinit = 0;
343 int i, ret;
344
345
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 58 if (dst == src)
346 ✗ return 0;
347
348
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 58 if (inited && !h1->ps.sps)
349 ✗ return AVERROR_INVALIDDATA;
350
351
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 58 if (inited &&
352
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 42 (h->width != h1->width ||
353
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 42 h->height != h1->height ||
354
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 42 h->mb_width != h1->mb_width ||
355
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 42 h->mb_height != h1->mb_height ||
356
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 42 !h->ps.sps ||
357
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 42 h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma ||
358
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 42 h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
359
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 42 h->ps.sps->vui.matrix_coeffs != h1->ps.sps->vui.matrix_coeffs)) {
360 ✗ need_reinit = 1;
361 }
362
363 /* copy block_offset since frame_start may not be called */
364 58 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
365
366 // SPS/PPS
367
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 1914 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++)
368 1856 av_refstruct_replace(&h->ps.sps_list[i], h1->ps.sps_list[i]);
369
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 14906 for (int i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++)
370 14848 av_refstruct_replace(&h->ps.pps_list[i], h1->ps.pps_list[i]);
371
372 58 av_refstruct_replace(&h->ps.pps, h1->ps.pps);
373 58 h->ps.sps = h1->ps.sps;
374
375
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 58 if (need_reinit || !inited) {
376 16 h->width = h1->width;
377 16 h->height = h1->height;
378 16 h->mb_height = h1->mb_height;
379 16 h->mb_width = h1->mb_width;
380 16 h->mb_num = h1->mb_num;
381 16 h->mb_stride = h1->mb_stride;
382 16 h->b_stride = h1->b_stride;
383 16 h->x264_build = h1->x264_build;
384
385
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 16 if (h->context_initialized || h1->context_initialized) {
386
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 16 if ((err = h264_slice_header_init(h)) < 0) {
387 ✗ av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
388 ✗ return err;
389 }
390 }
391
392 /* copy block_offset since frame_start may not be called */
393 16 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
394 }
395
396 58 h->width_from_caller = h1->width_from_caller;
397 58 h->height_from_caller = h1->height_from_caller;
398 58 h->first_field = h1->first_field;
399 58 h->picture_structure = h1->picture_structure;
400 58 h->mb_aff_frame = h1->mb_aff_frame;
401 58 h->droppable = h1->droppable;
402
403
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 2146 for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
404 2088 ret = ff_h264_replace_picture(&h->DPB[i], &h1->DPB[i]);
405
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 2088 if (ret < 0)
406 ✗ return ret;
407 }
408
409
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 58 h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
410 58 ret = ff_h264_replace_picture(&h->cur_pic, &h1->cur_pic);
411
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 58 if (ret < 0)
412 ✗ return ret;
413
414 58 h->enable_er = h1->enable_er;
415 58 h->workaround_bugs = h1->workaround_bugs;
416 58 h->droppable = h1->droppable;
417
418 // extradata/NAL handling
419 58 h->is_avc = h1->is_avc;
420 58 h->nal_length_size = h1->nal_length_size;
421
422 58 memcpy(&h->poc, &h1->poc, sizeof(h->poc));
423
424 58 memcpy(h->short_ref, h1->short_ref, sizeof(h->short_ref));
425 58 memcpy(h->long_ref, h1->long_ref, sizeof(h->long_ref));
426 58 memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
427 58 memcpy(h->last_pocs, h1->last_pocs, sizeof(h->last_pocs));
428
429 58 h->next_output_pic = h1->next_output_pic;
430 58 h->next_outputed_poc = h1->next_outputed_poc;
431 58 h->poc_offset = h1->poc_offset;
432
433 58 memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
434 58 h->nb_mmco = h1->nb_mmco;
435 58 h->mmco_reset = h1->mmco_reset;
436 58 h->explicit_ref_marking = h1->explicit_ref_marking;
437 58 h->long_ref_count = h1->long_ref_count;
438 58 h->short_ref_count = h1->short_ref_count;
439
440 58 copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
441 58 copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
442 58 copy_picture_range(h->delayed_pic, h1->delayed_pic,
443 FF_ARRAY_ELEMS(h->delayed_pic), h, h1);
444
445 58 h->frame_recovered = h1->frame_recovered;
446
447 58 ret = ff_h2645_sei_ctx_replace(&h->sei.common, &h1->sei.common);
448
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 58 if (ret < 0)
449 ✗ return ret;
450
451 58 h->sei.common.unregistered.x264_build = h1->sei.common.unregistered.x264_build;
452
453
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 58 if (!h->cur_pic_ptr)
454 16 return 0;
455
456
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 42 if (!h->droppable) {
457 27 err = ff_h264_execute_ref_pic_marking(h);
458 27 h->poc.prev_poc_msb = h->poc.poc_msb;
459 27 h->poc.prev_poc_lsb = h->poc.poc_lsb;
460 }
461 42 h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
462 42 h->poc.prev_frame_num = h->poc.frame_num;
463
464 42 h->recovery_frame = h1->recovery_frame;
465 42 h->non_gray = h1->non_gray;
466
467 42 return err;
468 }
469
470 46 int ff_h264_update_thread_context_for_user(AVCodecContext *dst,
471 const AVCodecContext *src)
472 {
473 46 H264Context *h = dst->priv_data;
474 46 const H264Context *h1 = src->priv_data;
475
476 46 h->is_avc = h1->is_avc;
477 46 h->nal_length_size = h1->nal_length_size;
478
479 46 return 0;
480 }
481
482 26139 static int h264_frame_start(H264Context *h)
483 {
484 H264Picture *pic;
485 int i, ret;
486 26139 const int pixel_shift = h->pixel_shift;
487
488
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 26139 if (!ff_thread_can_start_frame(h->avctx)) {
489 ✗ av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
490 ✗ return AVERROR_BUG;
491 }
492
493 26139 release_unused_pictures(h, 1);
494 26139 h->cur_pic_ptr = NULL;
495
496 26139 i = find_unused_picture(h);
497
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 26139 if (i < 0) {
498 ✗ av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
499 ✗ return i;
500 }
501 26139 pic = &h->DPB[i];
502
503
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 26139 pic->reference = h->droppable ? 0 : h->picture_structure;
504 26139 pic->field_picture = h->picture_structure != PICT_FRAME;
505 26139 pic->frame_num = h->poc.frame_num;
506 /*
507 * Zero key_frame here; IDR markings per slice in frame or fields are ORed
508 * in later.
509 * See decode_nal_units().
510 */
511 26139 pic->f->flags &= ~AV_FRAME_FLAG_KEY;
512 26139 pic->mmco_reset = 0;
513 26139 pic->recovered = 0;
514 26139 pic->invalid_gap = 0;
515 26139 pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
516
517 26139 pic->f->pict_type = h->slice_ctx[0].slice_type;
518
519 26139 pic->f->crop_left = h->crop_left;
520 26139 pic->f->crop_right = h->crop_right;
521 26139 pic->f->crop_top = h->crop_top;
522 26139 pic->f->crop_bottom = h->crop_bottom;
523
524 26139 pic->needs_fg =
525 26139 h->sei.common.film_grain_characteristics &&
526 ✗ h->sei.common.film_grain_characteristics->present &&
527
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 26139 !h->avctx->hwaccel &&
528 ✗ !(h->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
529
530
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 26139 if ((ret = alloc_picture(h, pic)) < 0)
531 ✗ return ret;
532
533 26139 h->cur_pic_ptr = pic;
534 26139 ff_h264_unref_picture(&h->cur_pic);
535 if (CONFIG_ERROR_RESILIENCE) {
536 26139 ff_h264_set_erpic(&h->er.cur_pic, NULL);
537 }
538
539
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 26139 if ((ret = ff_h264_ref_picture(&h->cur_pic, h->cur_pic_ptr)) < 0)
540 ✗ return ret;
541
542
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 52578 for (i = 0; i < h->nb_slice_ctx; i++) {
543 26439 h->slice_ctx[i].linesize = h->cur_pic_ptr->f->linesize[0];
544 26439 h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
545 }
546
547
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 26139 if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
548 25839 ff_er_frame_start(&h->er);
549 25839 ff_h264_set_erpic(&h->er.last_pic, NULL);
550 25839 ff_h264_set_erpic(&h->er.next_pic, NULL);
551 }
552
553
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 444363 for (i = 0; i < 16; i++) {
554 418224 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
555 418224 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
556 }
557
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 444363 for (i = 0; i < 16; i++) {
558 418224 h->block_offset[16 + i] =
559 418224 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
560 418224 h->block_offset[48 + 16 + i] =
561 418224 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
562 }
563
564 /* We mark the current picture as non-reference after allocating it, so
565 * that if we break out due to an error it can be released automatically
566 * in the next ff_mpv_frame_start().
567 */
568 26139 h->cur_pic_ptr->reference = 0;
569
570 26139 h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
571
572 26139 h->next_output_pic = NULL;
573
574 26139 h->postpone_filter = 0;
575
576
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 26139 h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
577
578
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 26139 if (h->sei.common.unregistered.x264_build >= 0)
579 2072 h->x264_build = h->sei.common.unregistered.x264_build;
580
581 assert(h->cur_pic_ptr->long_ref == 0);
582
583 26139 return 0;
584 }
585
586 12803158 static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
587 const uint8_t *src_y,
588 const uint8_t *src_cb, const uint8_t *src_cr,
589 int linesize, int uvlinesize,
590 int simple)
591 {
592 uint8_t *top_border;
593 12803158 int top_idx = 1;
594 12803158 const int pixel_shift = h->pixel_shift;
595 12803158 int chroma444 = CHROMA444(h);
596 12803158 int chroma422 = CHROMA422(h);
597
598 12803158 src_y -= linesize;
599 12803158 src_cb -= uvlinesize;
600 12803158 src_cr -= uvlinesize;
601
602
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 12803158 if (!simple && FRAME_MBAFF(h)) {
603
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 2023440 if (sl->mb_y & 1) {
604
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 1011720 if (!MB_MBAFF(sl)) {
605 748050 top_border = sl->top_borders[0][sl->mb_x];
606 748050 AV_COPY128(top_border, src_y + 15 * linesize);
607
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 748050 if (pixel_shift)
608 213139 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
609 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
610
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 748050 if (chroma444) {
611 ✗ if (pixel_shift) {
612 ✗ AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
613 ✗ AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
614 ✗ AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
615 ✗ AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
616 } else {
617 ✗ AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
618 ✗ AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
619 }
620
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 748050 } else if (chroma422) {
621
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 106510 if (pixel_shift) {
622 106510 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
623 106510 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
624 } else {
625 ✗ AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
626 ✗ AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
627 }
628 } else {
629
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 641540 if (pixel_shift) {
630 106629 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
631 106629 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
632 } else {
633 534911 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
634 534911 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
635 }
636 }
637 }
638 }
639
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 1011720 } else if (MB_MBAFF(sl)) {
640 263670 top_idx = 0;
641 } else
642 748050 return;
643 }
644
645 12055108 top_border = sl->top_borders[top_idx][sl->mb_x];
646 /* There are two lines saved, the line above the top macroblock
647 * of a pair, and the line above the bottom macroblock. */
648 12055108 AV_COPY128(top_border, src_y + 16 * linesize);
649
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 12055108 if (pixel_shift)
650 1389541 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
651
652 if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
653
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 12055108 if (chroma444) {
654
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 80328 if (pixel_shift) {
655 19800 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
656 19800 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
657 19800 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
658 19800 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
659 } else {
660 60528 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
661 60528 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
662 }
663
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 11974780 } else if (chroma422) {
664
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 588635 if (pixel_shift) {
665 584675 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
666 584675 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
667 } else {
668 3960 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
669 3960 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
670 }
671 } else {
672
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 11386145 if (pixel_shift) {
673 785066 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
674 785066 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
675 } else {
676 10601079 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
677 10601079 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
678 }
679 }
680 }
681 }
682
683 /**
684 * Initialize implicit_weight table.
685 * @param field 0/1 initialize the weight for interlaced MBAFF
686 * -1 initializes the rest
687 */
688 4019 static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
689 {
690 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
691
692
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 12057 for (i = 0; i < 2; i++) {
693 8038 sl->pwt.luma_weight_flag[i] = 0;
694 8038 sl->pwt.chroma_weight_flag[i] = 0;
695 }
696
697
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 4019 if (field < 0) {
698
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 2307 if (h->picture_structure == PICT_FRAME) {
699 2307 cur_poc = h->cur_pic_ptr->poc;
700 } else {
701 ✗ cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
702 }
703
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 2307 if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
704
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 811 sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
705 543 sl->pwt.use_weight = 0;
706 543 sl->pwt.use_weight_chroma = 0;
707 543 return;
708 }
709 1764 ref_start = 0;
710 1764 ref_count0 = sl->ref_count[0];
711 1764 ref_count1 = sl->ref_count[1];
712 } else {
713 1712 cur_poc = h->cur_pic_ptr->field_poc[field];
714 1712 ref_start = 16;
715 1712 ref_count0 = 16 + 2 * sl->ref_count[0];
716 1712 ref_count1 = 16 + 2 * sl->ref_count[1];
717 }
718
719 3476 sl->pwt.use_weight = 2;
720 3476 sl->pwt.use_weight_chroma = 2;
721 3476 sl->pwt.luma_log2_weight_denom = 5;
722 3476 sl->pwt.chroma_log2_weight_denom = 5;
723
724
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 15322 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
725 11846 int64_t poc0 = sl->ref_list[0][ref0].poc;
726
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 33793 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
727 21947 int w = 32;
728
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 21947 if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
729 21947 int poc1 = sl->ref_list[1][ref1].poc;
730 21947 int td = av_clip_int8(poc1 - poc0);
731
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 21947 if (td) {
732 21880 int tb = av_clip_int8(cur_poc - poc0);
733 21880 int tx = (16384 + (FFABS(td) >> 1)) / td;
734 21880 int dist_scale_factor = (tb * tx + 32) >> 8;
735
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 21880 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
736 21868 w = 64 - dist_scale_factor;
737 }
738 }
739
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 21947 if (field < 0) {
740 6043 sl->pwt.implicit_weight[ref0][ref1][0] =
741 6043 sl->pwt.implicit_weight[ref0][ref1][1] = w;
742 } else {
743 15904 sl->pwt.implicit_weight[ref0][ref1][field] = w;
744 }
745 }
746 }
747 }
748
749 /**
750 * initialize scan tables
751 */
752 617 static void init_scan_tables(H264Context *h)
753 {
754 int i;
755
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 10489 for (i = 0; i < 16; i++) {
756 #define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
757 9872 h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
758 9872 h->field_scan[i] = TRANSPOSE(field_scan[i]);
759 #undef TRANSPOSE
760 }
761
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 40105 for (i = 0; i < 64; i++) {
762 #define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
763 39488 h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
764 39488 h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
765 39488 h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
766 39488 h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
767 #undef TRANSPOSE
768 }
769
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 617 if (h->ps.sps->transform_bypass) { // FIXME same ugly
770 14 memcpy(h->zigzag_scan_q0 , ff_zigzag_scan , sizeof(h->zigzag_scan_q0 ));
771 14 memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 ));
772 14 memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
773 14 memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 ));
774 14 memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
775 14 memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
776 } else {
777 603 memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 ));
778 603 memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 ));
779 603 memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
780 603 memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 ));
781 603 memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
782 603 memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
783 }
784 617 }
785
786 29129 static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
787 {
788 #define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
789 (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
790 CONFIG_H264_D3D12VA_HWACCEL + \
791 CONFIG_H264_NVDEC_HWACCEL + \
792 CONFIG_H264_VAAPI_HWACCEL + \
793 CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
794 CONFIG_H264_VDPAU_HWACCEL + \
795 CONFIG_H264_VULKAN_HWACCEL)
796 29129 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
797
798
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 29129 switch (h->ps.sps->bit_depth_luma) {
799 155 case 9:
800
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 155 if (CHROMA444(h)) {
801 ✗ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
802 ✗ *fmt++ = AV_PIX_FMT_GBRP9;
803 } else
804 ✗ *fmt++ = AV_PIX_FMT_YUV444P9;
805
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 155 } else if (CHROMA422(h))
806 52 *fmt++ = AV_PIX_FMT_YUV422P9;
807 else
808 103 *fmt++ = AV_PIX_FMT_YUV420P9;
809 155 break;
810 373 case 10:
811 #if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
812 if (h->avctx->colorspace != AVCOL_SPC_RGB)
813 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
814 #endif
815 #if CONFIG_H264_VULKAN_HWACCEL
816 *fmt++ = AV_PIX_FMT_VULKAN;
817 #endif
818 #if CONFIG_H264_NVDEC_HWACCEL
819 *fmt++ = AV_PIX_FMT_CUDA;
820 #endif
821
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 373 if (CHROMA444(h)) {
822
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 51 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
823 ✗ *fmt++ = AV_PIX_FMT_GBRP10;
824 } else
825 51 *fmt++ = AV_PIX_FMT_YUV444P10;
826
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 322 } else if (CHROMA422(h))
827 164 *fmt++ = AV_PIX_FMT_YUV422P10;
828 else {
829 #if CONFIG_H264_VAAPI_HWACCEL
830 // Just add as candidate. Whether VAProfileH264High10 usable or
831 // not is decided by vaapi_decode_make_config() defined in FFmpeg
832 // and vaQueryCodingProfile() defined in libva.
833 158 *fmt++ = AV_PIX_FMT_VAAPI;
834 #endif
835 158 *fmt++ = AV_PIX_FMT_YUV420P10;
836 }
837 373 break;
838 ✗ case 12:
839 #if CONFIG_H264_VULKAN_HWACCEL
840 *fmt++ = AV_PIX_FMT_VULKAN;
841 #endif
842 ✗ if (CHROMA444(h)) {
843 ✗ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
844 ✗ *fmt++ = AV_PIX_FMT_GBRP12;
845 } else
846 ✗ *fmt++ = AV_PIX_FMT_YUV444P12;
847 ✗ } else if (CHROMA422(h))
848 ✗ *fmt++ = AV_PIX_FMT_YUV422P12;
849 else
850 ✗ *fmt++ = AV_PIX_FMT_YUV420P12;
851 ✗ break;
852 ✗ case 14:
853 ✗ if (CHROMA444(h)) {
854 ✗ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
855 ✗ *fmt++ = AV_PIX_FMT_GBRP14;
856 } else
857 ✗ *fmt++ = AV_PIX_FMT_YUV444P14;
858 ✗ } else if (CHROMA422(h))
859 ✗ *fmt++ = AV_PIX_FMT_YUV422P14;
860 else
861 ✗ *fmt++ = AV_PIX_FMT_YUV420P14;
862 ✗ break;
863 28601 case 8:
864 #if CONFIG_H264_VDPAU_HWACCEL
865 28601 *fmt++ = AV_PIX_FMT_VDPAU;
866 #endif
867 #if CONFIG_H264_VULKAN_HWACCEL
868 *fmt++ = AV_PIX_FMT_VULKAN;
869 #endif
870 #if CONFIG_H264_NVDEC_HWACCEL
871 *fmt++ = AV_PIX_FMT_CUDA;
872 #endif
873 #if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
874 if (h->avctx->colorspace != AVCOL_SPC_RGB)
875 *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
876 #endif
877
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 28601 if (CHROMA444(h)) {
878
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 484 if (h->avctx->colorspace == AVCOL_SPC_RGB)
879 ✗ *fmt++ = AV_PIX_FMT_GBRP;
880
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 484 else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
881 2 *fmt++ = AV_PIX_FMT_YUVJ444P;
882 else
883 482 *fmt++ = AV_PIX_FMT_YUV444P;
884
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 28117 } else if (CHROMA422(h)) {
885
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 22 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
886 ✗ *fmt++ = AV_PIX_FMT_YUVJ422P;
887 else
888 22 *fmt++ = AV_PIX_FMT_YUV422P;
889 } else {
890 #if CONFIG_H264_DXVA2_HWACCEL
891 *fmt++ = AV_PIX_FMT_DXVA2_VLD;
892 #endif
893 #if CONFIG_H264_D3D11VA_HWACCEL
894 *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
895 *fmt++ = AV_PIX_FMT_D3D11;
896 #endif
897 #if CONFIG_H264_D3D12VA_HWACCEL
898 *fmt++ = AV_PIX_FMT_D3D12;
899 #endif
900 #if CONFIG_H264_VAAPI_HWACCEL
901 28095 *fmt++ = AV_PIX_FMT_VAAPI;
902 #endif
903
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 28095 if (h->avctx->color_range == AVCOL_RANGE_JPEG)
904 3 *fmt++ = AV_PIX_FMT_YUVJ420P;
905 else
906 28092 *fmt++ = AV_PIX_FMT_YUV420P;
907 }
908 28601 break;
909 ✗ default:
910 ✗ av_log(h->avctx, AV_LOG_ERROR,
911 ✗ "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
912 ✗ return AVERROR_INVALIDDATA;
913 }
914
915 29129 *fmt = AV_PIX_FMT_NONE;
916
917
2/2
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 86584 for (int i = 0; pix_fmts[i] != AV_PIX_FMT_NONE; i++)
918
4/4
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 85983 if (pix_fmts[i] == h->avctx->pix_fmt && !force_callback)
919 28528 return pix_fmts[i];
920 601 return ff_get_format(h->avctx, pix_fmts);
921 }
922
923 /* export coded and cropped frame dimensions to AVCodecContext */
924 28868 static void init_dimensions(H264Context *h)
925 {
926 28868 const SPS *sps = h->ps.sps;
927 28868 int cr = sps->crop_right;
928 28868 int cl = sps->crop_left;
929 28868 int ct = sps->crop_top;
930 28868 int cb = sps->crop_bottom;
931 28868 int width = h->width - (cr + cl);
932 28868 int height = h->height - (ct + cb);
933
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 28868 av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
934
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 28868 av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
935
936 /* handle container cropping */
937
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 28868 if (h->width_from_caller > 0 && h->height_from_caller > 0 &&
938
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 26610 !sps->crop_top && !sps->crop_left &&
939
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 26609 FFALIGN(h->width_from_caller, 16) == FFALIGN(width, 16) &&
940
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 26598 FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
941
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 26598 h->width_from_caller <= width &&
942
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 26597 h->height_from_caller <= height) {
943 26589 width = h->width_from_caller;
944 26589 height = h->height_from_caller;
945 26589 cl = 0;
946 26589 ct = 0;
947 26589 cr = h->width - width;
948 26589 cb = h->height - height;
949 } else {
950 2279 h->width_from_caller = 0;
951 2279 h->height_from_caller = 0;
952 }
953
954 28868 h->avctx->coded_width = h->width;
955 28868 h->avctx->coded_height = h->height;
956 28868 h->avctx->width = width;
957 28868 h->avctx->height = height;
958 28868 h->crop_right = cr;
959 28868 h->crop_left = cl;
960 28868 h->crop_top = ct;
961 28868 h->crop_bottom = cb;
962 28868 }
963
964 617 static int h264_slice_header_init(H264Context *h)
965 {
966 617 const SPS *sps = h->ps.sps;
967 int i, ret;
968
969
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 617 if (!sps) {
970 ✗ ret = AVERROR_INVALIDDATA;
971 ✗ goto fail;
972 }
973
974 617 ff_set_sar(h->avctx, sps->vui.sar);
975 617 av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
976 &h->chroma_x_shift, &h->chroma_y_shift);
977
978
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 617 if (sps->timing_info_present_flag) {
979 197 int64_t den = sps->time_scale;
980
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 197 if (h->x264_build < 44U)
981 ✗ den *= 2;
982 197 av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
983 197 sps->num_units_in_tick * 2, den, 1 << 30);
984 }
985
986 617 ff_h264_free_tables(h);
987
988 617 h->first_field = 0;
989 617 h->prev_interlaced_frame = 1;
990
991 617 init_scan_tables(h);
992 617 ret = ff_h264_alloc_tables(h);
993
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✓ Branch 1 taken 617 times.
 617 if (ret < 0) {
994 ✗ av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
995 ✗ goto fail;
996 }
997
998
2/4
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 617 if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
999
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 617 sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
1000 ) {
1001 ✗ av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
1002 ✗ sps->bit_depth_luma);
1003 ✗ ret = AVERROR_INVALIDDATA;
1004 ✗ goto fail;
1005 }
1006
1007 617 h->cur_bit_depth_luma =
1008 617 h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
1009 617 h->cur_chroma_format_idc = sps->chroma_format_idc;
1010 617 h->pixel_shift = sps->bit_depth_luma > 8;
1011 617 h->chroma_format_idc = sps->chroma_format_idc;
1012 617 h->bit_depth_luma = sps->bit_depth_luma;
1013
1014 617 ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
1015 617 sps->chroma_format_idc);
1016 617 ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
1017 617 ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
1018 617 ff_h264_pred_init(&h->hpc, AV_CODEC_ID_H264, sps->bit_depth_luma,
1019 617 sps->chroma_format_idc);
1020 617 ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
1021
1022
2/2
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 617 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
1023 616 ff_h264_slice_context_init(h, &h->slice_ctx[0]);
1024 } else {
1025
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 3 for (i = 0; i < h->nb_slice_ctx; i++) {
1026 2 H264SliceContext *sl = &h->slice_ctx[i];
1027
1028 2 sl->h264 = h;
1029 2 sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
1030 2 sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride;
1031 2 sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride;
1032
1033 2 ff_h264_slice_context_init(h, sl);
1034 }
1035 }
1036
1037 617 h->context_initialized = 1;
1038
1039 617 return 0;
1040 ✗ fail:
1041 ✗ ff_h264_free_tables(h);
1042 ✗ h->context_initialized = 0;
1043 ✗ return ret;
1044 }
1045
1046 57056 static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
1047 {
1048
2/4
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✓ Branch 3 taken 57054 times.
 57056 switch (a) {
1049 2 case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
1050 ✗ case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
1051 ✗ case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1052 57054 default:
1053 57054 return a;
1054 }
1055 }
1056
1057 28868 static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1058 {
1059 const SPS *sps;
1060 28868 int needs_reinit = 0, must_reinit, ret;
1061
1062
2/2
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 28868 if (first_slice)
1063 28673 av_refstruct_replace(&h->ps.pps, h->ps.pps_list[sl->pps_id]);
1064
1065
2/2
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 28868 if (h->ps.sps != h->ps.pps->sps) {
1066 603 h->ps.sps = h->ps.pps->sps;
1067
1068
2/2
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 603 if (h->mb_width != h->ps.sps->mb_width ||
1069
1/2
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 7 h->mb_height != h->ps.sps->mb_height ||
1070
2/2
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 7 h->cur_bit_depth_luma != h->ps.sps->bit_depth_luma ||
1071
2/2
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 6 h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1072 )
1073 598 needs_reinit = 1;
1074
1075
2/2
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 603 if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||
1076
2/2
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 11 h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1077 593 needs_reinit = 1;
1078 }
1079 28868 sps = h->ps.sps;
1080
1081
2/2
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 57143 must_reinit = (h->context_initialized &&
1082
2/2
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✓ Branch 1 taken 6 times.
 28275 ( 16*sps->mb_width != h->avctx->coded_width
1083
1/2
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 28269 || 16*sps->mb_height != h->avctx->coded_height
1084
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 28269 || h->cur_bit_depth_luma != sps->bit_depth_luma
1085
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 28268 || h->cur_chroma_format_idc != sps->chroma_format_idc
1086
1/2
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 28267 || h->mb_width != sps->mb_width
1087
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 28267 || h->mb_height != sps->mb_height
1088 ));
1089
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 28868 if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1090
2/2
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 28528 || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1091 343 must_reinit = 1;
1092
1093
4/4
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 28868 if (first_slice && av_cmp_q(sps->vui.sar, h->avctx->sample_aspect_ratio))
1094 81 must_reinit = 1;
1095
1096
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 28868 if (!h->setup_finished) {
1097 28868 h->avctx->profile = ff_h264_get_profile(sps);
1098 28868 h->avctx->level = sps->level_idc;
1099 28868 h->avctx->refs = sps->ref_frame_count;
1100
1101 28868 h->mb_width = sps->mb_width;
1102 28868 h->mb_height = sps->mb_height;
1103 28868 h->mb_num = h->mb_width * h->mb_height;
1104 28868 h->mb_stride = h->mb_width + 1;
1105
1106 28868 h->b_stride = h->mb_width * 4;
1107
1108 28868 h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1109
1110 28868 h->width = 16 * h->mb_width;
1111 28868 h->height = 16 * h->mb_height;
1112
1113 28868 init_dimensions(h);
1114
1115
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✓ Branch 1 taken 27580 times.
 28868 if (sps->vui.video_signal_type_present_flag) {
1116 2576 h->avctx->color_range = sps->vui.video_full_range_flag > 0 ? AVCOL_RANGE_JPEG
1117
2/2
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 1288 : AVCOL_RANGE_MPEG;
1118
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 1288 if (sps->vui.colour_description_present_flag) {
1119
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 1190 if (h->avctx->colorspace != sps->vui.matrix_coeffs)
1120 19 needs_reinit = 1;
1121 1190 h->avctx->color_primaries = sps->vui.colour_primaries;
1122 1190 h->avctx->color_trc = sps->vui.transfer_characteristics;
1123 1190 h->avctx->colorspace = sps->vui.matrix_coeffs;
1124 }
1125 }
1126
1127
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 28868 if (h->sei.common.alternative_transfer.present &&
1128 ✗ av_color_transfer_name(h->sei.common.alternative_transfer.preferred_transfer_characteristics) &&
1129 ✗ h->sei.common.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1130 ✗ h->avctx->color_trc = h->sei.common.alternative_transfer.preferred_transfer_characteristics;
1131 }
1132 }
1133 28868 h->avctx->chroma_sample_location = sps->vui.chroma_location;
1134
1135
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 28868 if (!h->context_initialized || must_reinit || needs_reinit) {
1136 601 int flush_changes = h->context_initialized;
1137 601 h->context_initialized = 0;
1138
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 601 if (sl != h->slice_ctx) {
1139 ✗ av_log(h->avctx, AV_LOG_ERROR,
1140 "changing width %d -> %d / height %d -> %d on "
1141 "slice %d\n",
1142 ✗ h->width, h->avctx->coded_width,
1143 ✗ h->height, h->avctx->coded_height,
1144 ✗ h->current_slice + 1);
1145 ✗ return AVERROR_INVALIDDATA;
1146 }
1147
1148 av_assert1(first_slice);
1149
1150
2/2
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 601 if (flush_changes)
1151 8 ff_h264_flush_change(h);
1152
1153
5/6
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✓ Branch 6 taken 601 times.
 601 if ((ret = get_pixel_format(h, must_reinit || needs_reinit)) < 0)
1154 ✗ return ret;
1155 601 h->avctx->pix_fmt = ret;
1156
1157 601 av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1158 601 "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1159
1160
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 601 if ((ret = h264_slice_header_init(h)) < 0) {
1161 ✗ av_log(h->avctx, AV_LOG_ERROR,
1162 "h264_slice_header_init() failed\n");
1163 ✗ return ret;
1164 }
1165 }
1166
1167 28868 return 0;
1168 }
1169
1170 25444 static int h264_export_frame_props(H264Context *h)
1171 {
1172 25444 const SPS *sps = h->ps.sps;
1173 25444 H264Picture *cur = h->cur_pic_ptr;
1174 25444 AVFrame *out = cur->f;
1175 25444 int interlaced_frame = 0, top_field_first = 0;
1176 int ret;
1177
1178 25444 out->flags &= ~AV_FRAME_FLAG_INTERLACED;
1179 25444 out->repeat_pict = 0;
1180
1181 /* Signal interlacing information externally. */
1182 /* Prioritize picture timing SEI information over used
1183 * decoding process if it exists. */
1184
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 25444 if (h->sei.picture_timing.present) {
1185 1428 int ret = ff_h264_sei_process_picture_timing(&h->sei.picture_timing, sps,
1186 1428 h->avctx);
1187
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 1428 if (ret < 0) {
1188 ✗ av_log(h->avctx, AV_LOG_ERROR, "Error processing a picture timing SEI\n");
1189 ✗ if (h->avctx->err_recognition & AV_EF_EXPLODE)
1190 ✗ return ret;
1191 ✗ h->sei.picture_timing.present = 0;
1192 }
1193 }
1194
1195
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 26864 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1196 1420 const H264SEIPictureTiming *pt = &h->sei.picture_timing;
1197
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 1420 switch (pt->pic_struct) {
1198 132 case H264_SEI_PIC_STRUCT_FRAME:
1199 132 break;
1200 378 case H264_SEI_PIC_STRUCT_TOP_FIELD:
1201 case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1202 378 interlaced_frame = 1;
1203 378 break;
1204 743 case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1205 case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1206
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 743 if (FIELD_OR_MBAFF_PICTURE(h))
1207 739 interlaced_frame = 1;
1208 else
1209 // try to flag soft telecine progressive
1210 4 interlaced_frame = !!h->prev_interlaced_frame;
1211 743 break;
1212 167 case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1213 case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1214 /* Signal the possibility of telecined film externally
1215 * (pic_struct 5,6). From these hints, let the applications
1216 * decide if they apply deinterlacing. */
1217 167 out->repeat_pict = 1;
1218 167 break;
1219 ✗ case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1220 ✗ out->repeat_pict = 2;
1221 ✗ break;
1222 ✗ case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1223 ✗ out->repeat_pict = 4;
1224 ✗ break;
1225 }
1226
1227
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 1420 if ((pt->ct_type & 3) &&
1228
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 653 pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1229 489 interlaced_frame = ((pt->ct_type & (1 << 1)) != 0);
1230 } else {
1231 /* Derive interlacing flag from used decoding process. */
1232
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 24024 interlaced_frame = !!FIELD_OR_MBAFF_PICTURE(h);
1233 }
1234 25444 h->prev_interlaced_frame = interlaced_frame;
1235
1236
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 25444 if (cur->field_poc[0] != cur->field_poc[1]) {
1237 /* Derive top_field_first from field pocs. */
1238 3393 top_field_first = (cur->field_poc[0] < cur->field_poc[1]);
1239 } else {
1240
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 22051 if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1241 /* Use picture timing SEI information. Even if it is a
1242 * information of a past frame, better than nothing. */
1243
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 139 if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1244
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 138 h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1245 3 top_field_first = 1;
1246
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 21912 } else if (interlaced_frame) {
1247 /* Default to top field first when pic_struct_present_flag
1248 * is not set but interlaced frame detected */
1249 2558 top_field_first = 1;
1250 } // else
1251 /* Most likely progressive */
1252 }
1253
1254 25444 out->flags |= (AV_FRAME_FLAG_INTERLACED * interlaced_frame) |
1255 25444 (AV_FRAME_FLAG_TOP_FIELD_FIRST * top_field_first);
1256
1257 25444 ret = ff_h2645_sei_to_frame(out, &h->sei.common, AV_CODEC_ID_H264, h->avctx,
1258 25444 &sps->vui, sps->bit_depth_luma, sps->bit_depth_chroma,
1259 25444 cur->poc + (unsigned)(h->poc_offset << 5));
1260
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 25444 if (ret < 0)
1261 ✗ return ret;
1262
1263
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 25444 if (h->sei.picture_timing.timecode_cnt > 0) {
1264 uint32_t *tc_sd;
1265 char tcbuf[AV_TIMECODE_STR_SIZE];
1266 AVFrameSideData *tcside;
1267 653 ret = ff_frame_new_side_data(h->avctx, out, AV_FRAME_DATA_S12M_TIMECODE,
1268 sizeof(uint32_t)*4, &tcside);
1269
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 653 if (ret < 0)
1270 ✗ return ret;
1271
1272
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 653 if (tcside) {
1273 653 tc_sd = (uint32_t*)tcside->data;
1274 653 tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1275
1276
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 1607 for (int i = 0; i < tc_sd[0]; i++) {
1277 954 int drop = h->sei.picture_timing.timecode[i].dropframe;
1278 954 int hh = h->sei.picture_timing.timecode[i].hours;
1279 954 int mm = h->sei.picture_timing.timecode[i].minutes;
1280 954 int ss = h->sei.picture_timing.timecode[i].seconds;
1281 954 int ff = h->sei.picture_timing.timecode[i].frame;
1282
1283 954 tc_sd[i + 1] = av_timecode_get_smpte(h->avctx->framerate, drop, hh, mm, ss, ff);
1284 954 av_timecode_make_smpte_tc_string2(tcbuf, h->avctx->framerate, tc_sd[i + 1], 0, 0);
1285 954 av_dict_set(&out->metadata, "timecode", tcbuf, 0);
1286 }
1287 }
1288 653 h->sei.picture_timing.timecode_cnt = 0;
1289 }
1290
1291 25444 return 0;
1292 }
1293
1294 25444 static int h264_select_output_frame(H264Context *h)
1295 {
1296 25444 const SPS *sps = h->ps.sps;
1297 25444 H264Picture *out = h->cur_pic_ptr;
1298 25444 H264Picture *cur = h->cur_pic_ptr;
1299 int i, pics, out_of_order, out_idx;
1300
1301 25444 cur->mmco_reset = h->mmco_reset;
1302 25444 h->mmco_reset = 0;
1303
1304
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 25444 if (sps->bitstream_restriction_flag ||
1305
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 20029 h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1306 5415 h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1307 }
1308
1309 417272 for (i = 0; 1; i++) {
1310
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 417272 if(i == H264_MAX_DPB_FRAMES || cur->poc < h->last_pocs[i]){
1311
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 25444 if(i)
1312 25444 h->last_pocs[i-1] = cur->poc;
1313 25444 break;
1314
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 391828 } else if(i) {
1315 366384 h->last_pocs[i-1]= h->last_pocs[i];
1316 }
1317 }
1318 25444 out_of_order = H264_MAX_DPB_FRAMES - i;
1319
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 25444 if( cur->f->pict_type == AV_PICTURE_TYPE_B
1320
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 17092 || (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))
1321 13560 out_of_order = FFMAX(out_of_order, 1);
1322
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 25444 if (out_of_order == H264_MAX_DPB_FRAMES) {
1323 ✗ av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1324 ✗ for (i = 1; i < H264_MAX_DPB_FRAMES; i++)
1325 ✗ h->last_pocs[i] = INT_MIN;
1326 ✗ h->last_pocs[0] = cur->poc;
1327 ✗ cur->mmco_reset = 1;
1328
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 25444 } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1329
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 141 int loglevel = h->avctx->frame_num > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1330 141 av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1331 141 h->avctx->has_b_frames = out_of_order;
1332 }
1333
1334 25444 pics = 0;
1335
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 56630 while (h->delayed_pic[pics])
1336 31186 pics++;
1337
1338
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 25444 av_assert0(pics <= H264_MAX_DPB_FRAMES);
1339
1340 25444 h->delayed_pic[pics++] = cur;
1341
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 25444 if (cur->reference == 0)
1342 23916 cur->reference = DELAYED_PIC_REF;
1343
1344 25444 out = h->delayed_pic[0];
1345 25444 out_idx = 0;
1346 25444 for (i = 1; h->delayed_pic[i] &&
1347
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 53709 !(h->delayed_pic[i]->f->flags & AV_FRAME_FLAG_KEY) &&
1348
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 28352 !h->delayed_pic[i]->mmco_reset;
1349 28265 i++)
1350
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 28265 if (h->delayed_pic[i]->poc < out->poc) {
1351 10583 out = h->delayed_pic[i];
1352 10583 out_idx = i;
1353 }
1354
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 25444 if (h->avctx->has_b_frames == 0 &&
1355
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 10261 ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset))
1356 806 h->next_outputed_poc = INT_MIN;
1357 25444 out_of_order = out->poc < h->next_outputed_poc;
1358
1359
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 25444 if (out_of_order || pics > h->avctx->has_b_frames) {
1360 24902 out->reference &= ~DELAYED_PIC_REF;
1361
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 65314 for (i = out_idx; h->delayed_pic[i]; i++)
1362 40412 h->delayed_pic[i] = h->delayed_pic[i + 1];
1363 }
1364
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 25444 if (!out_of_order && pics > h->avctx->has_b_frames) {
1365 24789 h->next_output_pic = out;
1366
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 24789 if (out_idx == 0 && h->delayed_pic[0] && ((h->delayed_pic[0]->f->flags & AV_FRAME_FLAG_KEY) || h->delayed_pic[0]->mmco_reset)) {
1367 108 h->next_outputed_poc = INT_MIN;
1368 } else
1369 24681 h->next_outputed_poc = out->poc;
1370
1371 // We have reached an recovery point and all frames after it in
1372 // display order are "recovered".
1373 24789 h->frame_recovered |= out->recovered;
1374
1375 24789 out->recovered |= h->frame_recovered & FRAME_RECOVERED_SEI;
1376
1377
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 24789 if (!out->recovered) {
1378
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 306 if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1379
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 306 !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1380 306 h->next_output_pic = NULL;
1381 } else {
1382 ✗ out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1383 }
1384 }
1385 } else {
1386
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 655 av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1387 }
1388
1389 25444 return 0;
1390 }
1391
1392 /* This function is called right after decoding the slice header for a first
1393 * slice in a field (or a frame). It decides whether we are decoding a new frame
1394 * or a second field in a pair and does the necessary setup.
1395 */
1396 28868 static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1397 const H2645NAL *nal, int first_slice)
1398 {
1399 int i;
1400 const SPS *sps;
1401
1402 int last_pic_structure, last_pic_droppable, ret;
1403
1404 28868 ret = h264_init_ps(h, sl, first_slice);
1405
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 28868 if (ret < 0)
1406 ✗ return ret;
1407
1408 28868 sps = h->ps.sps;
1409
1410
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 28868 if (sps->bitstream_restriction_flag &&
1411
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 5800 h->avctx->has_b_frames < sps->num_reorder_frames) {
1412 38 h->avctx->has_b_frames = sps->num_reorder_frames;
1413 }
1414
1415 28868 last_pic_droppable = h->droppable;
1416 28868 last_pic_structure = h->picture_structure;
1417 28868 h->droppable = (nal->ref_idc == 0);
1418 28868 h->picture_structure = sl->picture_structure;
1419
1420 28868 h->poc.frame_num = sl->frame_num;
1421 28868 h->poc.poc_lsb = sl->poc_lsb;
1422 28868 h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1423 28868 h->poc.delta_poc[0] = sl->delta_poc[0];
1424 28868 h->poc.delta_poc[1] = sl->delta_poc[1];
1425
1426
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 28868 if (nal->type == H264_NAL_IDR_SLICE)
1427 1094 h->poc_offset = sl->idr_pic_id;
1428
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 27774 else if (h->picture_intra_only)
1429 ✗ h->poc_offset = 0;
1430
1431 /* Shorten frame num gaps so we don't have to allocate reference
1432 * frames just to throw them away */
1433
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 28868 if (h->poc.frame_num != h->poc.prev_frame_num) {
1434 16469 int unwrap_prev_frame_num = h->poc.prev_frame_num;
1435 16469 int max_frame_num = 1 << sps->log2_max_frame_num;
1436
1437
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 16469 if (unwrap_prev_frame_num > h->poc.frame_num)
1438 201 unwrap_prev_frame_num -= max_frame_num;
1439
1440
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 16469 if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1441 76 unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1442
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 76 if (unwrap_prev_frame_num < 0)
1443 2 unwrap_prev_frame_num += max_frame_num;
1444
1445 76 h->poc.prev_frame_num = unwrap_prev_frame_num;
1446 }
1447 }
1448
1449 /* See if we have a decoded first field looking for a pair...
1450 * Here, we're using that to see if we should mark previously
1451 * decode frames as "finished".
1452 * We have to do that before the "dummy" in-between frame allocation,
1453 * since that can modify h->cur_pic_ptr. */
1454
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 28868 if (h->first_field) {
1455 3418 int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1456
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 3418 av_assert0(h->cur_pic_ptr);
1457
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 3418 av_assert0(h->cur_pic_ptr->f->buf[0]);
1458 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1459
1460 /* Mark old field/frame as completed */
1461
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 3418 if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1462 3418 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1463 }
1464
1465 /* figure out if we have a complementary field pair */
1466
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 3418 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1467 /* Previous field is unmatched. Don't display it, but let it
1468 * remain for reference if marked as such. */
1469 ✗ if (last_pic_structure != PICT_FRAME) {
1470 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1471 last_pic_structure == PICT_TOP_FIELD);
1472 }
1473 } else {
1474
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 3418 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1475 /* This and previous field were reference, but had
1476 * different frame_nums. Consider this field first in
1477 * pair. Throw away previous field except for reference
1478 * purposes. */
1479 ✗ if (last_pic_structure != PICT_FRAME) {
1480 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1481 last_pic_structure == PICT_TOP_FIELD);
1482 }
1483 } else {
1484 /* Second field in complementary pair */
1485
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 3418 if (!((last_pic_structure == PICT_TOP_FIELD &&
1486
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 3410 h->picture_structure == PICT_BOTTOM_FIELD) ||
1487 8 (last_pic_structure == PICT_BOTTOM_FIELD &&
1488
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 8 h->picture_structure == PICT_TOP_FIELD))) {
1489 ✗ av_log(h->avctx, AV_LOG_ERROR,
1490 "Invalid field mode combination %d/%d\n",
1491 last_pic_structure, h->picture_structure);
1492 ✗ h->picture_structure = last_pic_structure;
1493 ✗ h->droppable = last_pic_droppable;
1494 ✗ return AVERROR_INVALIDDATA;
1495
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 3418 } else if (last_pic_droppable != h->droppable) {
1496 ✗ avpriv_request_sample(h->avctx,
1497 "Found reference and non-reference fields in the same frame, which");
1498 ✗ h->picture_structure = last_pic_structure;
1499 ✗ h->droppable = last_pic_droppable;
1500 ✗ return AVERROR_PATCHWELCOME;
1501 }
1502 }
1503 }
1504 }
1505
1506
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 58425 while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1507
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 17158 h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1508
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✓ Branch 1 taken 34 times.
 689 const H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1509 689 av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1510 h->poc.frame_num, h->poc.prev_frame_num);
1511
2/2
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✓ Branch 1 taken 577 times.
 689 if (!sps->gaps_in_frame_num_allowed_flag)
1512
2/2
✓ Branch 0 taken 1792 times.
✓ Branch 1 taken 112 times.
 1904 for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1513 1792 h->last_pocs[i] = INT_MIN;
1514 689 ret = h264_frame_start(h);
1515
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 689 times.
 689 if (ret < 0) {
1516 ✗ h->first_field = 0;
1517 ✗ return ret;
1518 }
1519
1520 689 h->poc.prev_frame_num++;
1521 689 h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num;
1522 689 h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1523 689 h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1524 689 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1525 689 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1526
1527 689 h->explicit_ref_marking = 0;
1528 689 ret = ff_h264_execute_ref_pic_marking(h);
1529
1/4
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✓ Branch 1 taken 689 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 689 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1530 ✗ return ret;
1531 /* Error concealment: If a ref is missing, copy the previous ref
1532 * in its place.
1533 * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1534 * many assumptions about there being no actual duplicates.
1535 * FIXME: This does not copy padding for out-of-frame motion
1536 * vectors. Given we are concealing a lost frame, this probably
1537 * is not noticeable by comparison, but it should be fixed. */
1538
1/2
✓ Branch 0 taken 689 times.
✗ Branch 1 not taken.
 689 if (h->short_ref_count) {
1539 689 int c[4] = {
1540 689 1<<(h->ps.sps->bit_depth_luma-1),
1541 689 1<<(h->ps.sps->bit_depth_chroma-1),
1542 689 1<<(h->ps.sps->bit_depth_chroma-1),
1543 -1
1544 };
1545
1546
2/2
✓ Branch 0 taken 655 times.
✓ Branch 1 taken 34 times.
 689 if (prev &&
1547
1/2
✓ Branch 0 taken 655 times.
✗ Branch 1 not taken.
 655 h->short_ref[0]->f->width == prev->f->width &&
1548
1/2
✓ Branch 0 taken 655 times.
✗ Branch 1 not taken.
 655 h->short_ref[0]->f->height == prev->f->height &&
1549
1/2
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✗ Branch 1 not taken.
 655 h->short_ref[0]->f->format == prev->f->format) {
1550 655 ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1551
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 627 times.
 655 if (prev->field_picture)
1552 28 ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1553 655 ff_thread_release_ext_buffer(&h->short_ref[0]->tf);
1554 655 h->short_ref[0]->tf.f = h->short_ref[0]->f;
1555 655 ret = ff_thread_ref_frame(&h->short_ref[0]->tf, &prev->tf);
1556
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 655 times.
 655 if (ret < 0)
1557 ✗ return ret;
1558 655 h->short_ref[0]->poc = prev->poc + 2U;
1559 655 h->short_ref[0]->gray = prev->gray;
1560 655 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 0);
1561
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 627 times.
 655 if (h->short_ref[0]->field_picture)
1562 28 ff_thread_report_progress(&h->short_ref[0]->tf, INT_MAX, 1);
1563
2/2
✓ Branch 0 taken 26 times.
✓ Branch 1 taken 8 times.
 34 } else if (!h->frame_recovered) {
1564
1/2
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✗ Branch 1 not taken.
 26 if (!h->avctx->hwaccel)
1565 26 color_frame(h->short_ref[0]->f, c);
1566 26 h->short_ref[0]->gray = 1;
1567 }
1568 689 h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1569 }
1570 }
1571
1572 /* See if we have a decoded first field looking for a pair...
1573 * We're using that to see whether to continue decoding in that
1574 * frame, or to allocate a new one. */
1575
2/2
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✓ Branch 1 taken 25450 times.
 28868 if (h->first_field) {
1576
1/2
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✓ Branch 1 taken 3418 times.
 3418 av_assert0(h->cur_pic_ptr);
1577
1/2
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✓ Branch 1 taken 3418 times.
 3418 av_assert0(h->cur_pic_ptr->f->buf[0]);
1578 assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1579
1580 /* figure out if we have a complementary field pair */
1581
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 3418 times.
 3418 if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1582 /* Previous field is unmatched. Don't display it, but let it
1583 * remain for reference if marked as such. */
1584 ✗ h->missing_fields ++;
1585 ✗ h->cur_pic_ptr = NULL;
1586 ✗ h->first_field = FIELD_PICTURE(h);
1587 } else {
1588 3418 h->missing_fields = 0;
1589
1/2
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✓ Branch 1 taken 3418 times.
 3418 if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1590 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1591 ✗ h->picture_structure==PICT_BOTTOM_FIELD);
1592 /* This and the previous field had different frame_nums.
1593 * Consider this field first in pair. Throw away previous
1594 * one except for reference purposes. */
1595 ✗ h->first_field = 1;
1596 ✗ h->cur_pic_ptr = NULL;
1597
1/2
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✓ Branch 1 taken 3418 times.
 3418 } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1598 /* This frame was already output, we cannot draw into it
1599 * anymore.
1600 */
1601 ✗ h->first_field = 1;
1602 ✗ h->cur_pic_ptr = NULL;
1603 } else {
1604 /* Second field in complementary pair */
1605 3418 h->first_field = 0;
1606 }
1607 }
1608 } else {
1609 /* Frame or first field in a potentially complementary pair */
1610 25450 h->first_field = FIELD_PICTURE(h);
1611 }
1612
1613
4/4
✓ Branch 0 taken 6842 times.
✓ Branch 1 taken 22026 times.
✓ Branch 2 taken 3424 times.
✓ Branch 3 taken 3418 times.
 28868 if (!FIELD_PICTURE(h) || h->first_field) {
1614
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 25450 times.
 25450 if (h264_frame_start(h) < 0) {
1615 ✗ h->first_field = 0;
1616 ✗ return AVERROR_INVALIDDATA;
1617 }
1618 } else {
1619 3418 int field = h->picture_structure == PICT_BOTTOM_FIELD;
1620 3418 release_unused_pictures(h, 0);
1621 3418 h->cur_pic_ptr->tf.owner[field] = h->avctx;
1622 }
1623 /* Some macroblocks can be accessed before they're available in case
1624 * of lost slices, MBAFF or threading. */
1625
2/2
✓ Branch 0 taken 6842 times.
✓ Branch 1 taken 22026 times.
 28868 if (FIELD_PICTURE(h)) {
1626
2/2
✓ Branch 0 taken 170420 times.
✓ Branch 1 taken 6842 times.
 177262 for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1627 170420 memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1628 } else {
1629 22026 memset(h->slice_table, -1,
1630 22026 (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1631 }
1632
1633 28868 ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1634 28868 h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1635
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28868 times.
 28868 if (ret < 0)
1636 ✗ return ret;
1637
1638 28868 memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1639 28868 h->nb_mmco = sl->nb_mmco;
1640 28868 h->explicit_ref_marking = sl->explicit_ref_marking;
1641
1642 28868 h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1643
1644
2/2
✓ Branch 0 taken 98 times.
✓ Branch 1 taken 28770 times.
 28868 if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1645 98 const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1646
1647
4/4
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 73 times.
✓ Branch 2 taken 11 times.
✓ Branch 3 taken 14 times.
 98 if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1648 84 h->valid_recovery_point = 1;
1649
1650
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 93 times.
 98 if ( h->recovery_frame < 0
1651
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 || av_zero_extend(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1652 93 h->recovery_frame = av_zero_extend(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1653
1654
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 87 times.
 93 if (!h->valid_recovery_point)
1655 6 h->recovery_frame = h->poc.frame_num;
1656 }
1657 }
1658
1659
2/2
✓ Branch 0 taken 1094 times.
✓ Branch 1 taken 27774 times.
 28868 h->cur_pic_ptr->f->flags |= AV_FRAME_FLAG_KEY * !!(nal->type == H264_NAL_IDR_SLICE);
1660
1661
2/2
✓ Branch 0 taken 1094 times.
✓ Branch 1 taken 27774 times.
 28868 if (nal->type == H264_NAL_IDR_SLICE) {
1662 1094 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_IDR;
1663 // If we have an IDR, all frames after it in decoded order are
1664 // "recovered".
1665 1094 h->frame_recovered |= FRAME_RECOVERED_IDR;
1666 }
1667
1668
4/4
✓ Branch 0 taken 110 times.
✓ Branch 1 taken 28758 times.
✓ Branch 2 taken 92 times.
✓ Branch 3 taken 18 times.
 28868 if (h->recovery_frame == h->poc.frame_num && nal->ref_idc) {
1669 92 h->recovery_frame = -1;
1670 92 h->cur_pic_ptr->recovered |= FRAME_RECOVERED_SEI;
1671 }
1672
1673 #if 1
1674 28868 h->cur_pic_ptr->recovered |= h->frame_recovered;
1675 #else
1676 h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1677 #endif
1678
1679 /* Set the frame properties/side data. Only done for the second field in
1680 * field coded frames, since some SEI information is present for each field
1681 * and is merged by the SEI parsing code. */
1682
5/6
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✓ Branch 1 taken 22026 times.
✓ Branch 2 taken 3424 times.
✓ Branch 3 taken 3418 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 3424 times.
 28868 if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1683 25444 ret = h264_export_frame_props(h);
1684
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25444 times.
 25444 if (ret < 0)
1685 ✗ return ret;
1686
1687 25444 ret = h264_select_output_frame(h);
1688
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25444 times.
 25444 if (ret < 0)
1689 ✗ return ret;
1690 }
1691
1692 28868 return 0;
1693 }
1694
1695 38289 static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1696 const H2645NAL *nal)
1697 {
1698 const SPS *sps;
1699 const PPS *pps;
1700 int ret;
1701 unsigned int slice_type, tmp, i;
1702 int field_pic_flag, bottom_field_flag;
1703
4/4
✓ Branch 0 taken 37839 times.
✓ Branch 1 taken 450 times.
✓ Branch 2 taken 28916 times.
✓ Branch 3 taken 8923 times.
 38289 int first_slice = sl == h->slice_ctx && !h->current_slice;
1704 int picture_structure;
1705
1706
2/2
✓ Branch 0 taken 28916 times.
✓ Branch 1 taken 9373 times.
 38289 if (first_slice)
1707
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28916 times.
 28916 av_assert0(!h->setup_finished);
1708
1709 38289 sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1710
1711 38289 slice_type = get_ue_golomb_31(&sl->gb);
1712
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38289 times.
 38289 if (slice_type > 9) {
1713 ✗ av_log(h->avctx, AV_LOG_ERROR,
1714 "slice type %d too large at %d\n",
1715 slice_type, sl->first_mb_addr);
1716 ✗ return AVERROR_INVALIDDATA;
1717 }
1718
2/2
✓ Branch 0 taken 24565 times.
✓ Branch 1 taken 13724 times.
 38289 if (slice_type > 4) {
1719 24565 slice_type -= 5;
1720 24565 sl->slice_type_fixed = 1;
1721 } else
1722 13724 sl->slice_type_fixed = 0;
1723
1724 38289 slice_type = ff_h264_golomb_to_pict_type[slice_type];
1725 38289 sl->slice_type = slice_type;
1726 38289 sl->slice_type_nos = slice_type & 3;
1727
1728
2/2
✓ Branch 0 taken 2282 times.
✓ Branch 1 taken 36007 times.
 38289 if (nal->type == H264_NAL_IDR_SLICE &&
1729
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2282 times.
 2282 sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1730 ✗ av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1731 ✗ return AVERROR_INVALIDDATA;
1732 }
1733
1734 38289 sl->pps_id = get_ue_golomb(&sl->gb);
1735
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38289 times.
 38289 if (sl->pps_id >= MAX_PPS_COUNT) {
1736 ✗ av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1737 ✗ return AVERROR_INVALIDDATA;
1738 }
1739
2/2
✓ Branch 0 taken 167 times.
✓ Branch 1 taken 38122 times.
 38289 if (!h->ps.pps_list[sl->pps_id]) {
1740 167 av_log(h->avctx, AV_LOG_ERROR,
1741 "non-existing PPS %u referenced\n",
1742 sl->pps_id);
1743 167 return AVERROR_INVALIDDATA;
1744 }
1745 38122 pps = h->ps.pps_list[sl->pps_id];
1746 38122 sps = pps->sps;
1747
1748 38122 sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1749
2/2
✓ Branch 0 taken 9369 times.
✓ Branch 1 taken 28753 times.
 38122 if (!first_slice) {
1750
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9369 times.
 9369 if (h->poc.frame_num != sl->frame_num) {
1751 ✗ av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1752 ✗ h->poc.frame_num, sl->frame_num);
1753 ✗ return AVERROR_INVALIDDATA;
1754 }
1755 }
1756
1757 38122 sl->mb_mbaff = 0;
1758
1759
2/2
✓ Branch 0 taken 23409 times.
✓ Branch 1 taken 14713 times.
 38122 if (sps->frame_mbs_only_flag) {
1760 23409 picture_structure = PICT_FRAME;
1761 } else {
1762
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 14713 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 14713 if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1763 ✗ av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1764 ✗ return -1;
1765 }
1766 14713 field_pic_flag = get_bits1(&sl->gb);
1767
2/2
✓ Branch 0 taken 9240 times.
✓ Branch 1 taken 5473 times.
 14713 if (field_pic_flag) {
1768 9240 bottom_field_flag = get_bits1(&sl->gb);
1769 9240 picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1770 } else {
1771 5473 picture_structure = PICT_FRAME;
1772 }
1773 }
1774 38122 sl->picture_structure = picture_structure;
1775 38122 sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1776
1777
2/2
✓ Branch 0 taken 28882 times.
✓ Branch 1 taken 9240 times.
 38122 if (picture_structure == PICT_FRAME) {
1778 28882 sl->curr_pic_num = sl->frame_num;
1779 28882 sl->max_pic_num = 1 << sps->log2_max_frame_num;
1780 } else {
1781 9240 sl->curr_pic_num = 2 * sl->frame_num + 1;
1782 9240 sl->max_pic_num = 1 << (sps->log2_max_frame_num + 1);
1783 }
1784
1785
2/2
✓ Branch 0 taken 2277 times.
✓ Branch 1 taken 35845 times.
 38122 if (nal->type == H264_NAL_IDR_SLICE) {
1786 2277 unsigned idr_pic_id = get_ue_golomb_long(&sl->gb);
1787
1/2
✓ Branch 0 taken 2277 times.
✗ Branch 1 not taken.
 2277 if (idr_pic_id < 65536) {
1788 2277 sl->idr_pic_id = idr_pic_id;
1789 } else
1790 ✗ av_log(h->avctx, AV_LOG_WARNING, "idr_pic_id is invalid\n");
1791 }
1792
1793 38122 sl->poc_lsb = 0;
1794 38122 sl->delta_poc_bottom = 0;
1795
2/2
✓ Branch 0 taken 30341 times.
✓ Branch 1 taken 7781 times.
 38122 if (sps->poc_type == 0) {
1796 30341 sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1797
1798
4/4
✓ Branch 0 taken 8524 times.
✓ Branch 1 taken 21817 times.
✓ Branch 2 taken 6632 times.
✓ Branch 3 taken 1892 times.
 30341 if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1799 6632 sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1800 }
1801
1802 38122 sl->delta_poc[0] = sl->delta_poc[1] = 0;
1803
4/4
✓ Branch 0 taken 3055 times.
✓ Branch 1 taken 35067 times.
✓ Branch 2 taken 2848 times.
✓ Branch 3 taken 207 times.
 38122 if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1804 2848 sl->delta_poc[0] = get_se_golomb(&sl->gb);
1805
1806
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)
1807 453 sl->delta_poc[1] = get_se_golomb(&sl->gb);
1808 }
1809
1810 38122 sl->redundant_pic_count = 0;
1811
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38122 times.
 38122 if (pps->redundant_pic_cnt_present)
1812 ✗ sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1813
1814
2/2
✓ Branch 0 taken 13516 times.
✓ Branch 1 taken 24606 times.
 38122 if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1815 13516 sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1816
1817 38122 ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1818 &sl->gb, pps, sl->slice_type_nos,
1819 38122 picture_structure, h->avctx);
1820
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38122 times.
 38122 if (ret < 0)
1821 ✗ return ret;
1822
1823
2/2
✓ Branch 0 taken 33637 times.
✓ Branch 1 taken 4485 times.
 38122 if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1824 33637 ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1825
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33637 times.
 33637 if (ret < 0) {
1826 ✗ sl->ref_count[1] = sl->ref_count[0] = 0;
1827 ✗ return ret;
1828 }
1829 }
1830
1831 38122 sl->pwt.use_weight = 0;
1832
2/2
✓ Branch 0 taken 76244 times.
✓ Branch 1 taken 38122 times.
 114366 for (i = 0; i < 2; i++) {
1833 76244 sl->pwt.luma_weight_flag[i] = 0;
1834 76244 sl->pwt.chroma_weight_flag[i] = 0;
1835 }
1836
4/4
✓ Branch 0 taken 4775 times.
✓ Branch 1 taken 33347 times.
✓ Branch 2 taken 1826 times.
✓ Branch 3 taken 2949 times.
 38122 if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1837
2/2
✓ Branch 0 taken 390 times.
✓ Branch 1 taken 34783 times.
 35173 (pps->weighted_bipred_idc == 1 &&
1838
2/2
✓ Branch 0 taken 386 times.
✓ Branch 1 taken 4 times.
 390 sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1839 3335 ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1840 sl->slice_type_nos, &sl->pwt,
1841 3335 picture_structure, h->avctx);
1842
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3335 times.
 3335 if (ret < 0)
1843 ✗ return ret;
1844 }
1845
1846 38122 sl->explicit_ref_marking = 0;
1847
2/2
✓ Branch 0 taken 25447 times.
✓ Branch 1 taken 12675 times.
 38122 if (nal->ref_idc) {
1848 25447 ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1849
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 25447 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 25447 if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1850 ✗ return AVERROR_INVALIDDATA;
1851 }
1852
1853
4/4
✓ Branch 0 taken 33637 times.
✓ Branch 1 taken 4485 times.
✓ Branch 2 taken 18825 times.
✓ Branch 3 taken 14812 times.
 38122 if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1854 18825 tmp = get_ue_golomb_31(&sl->gb);
1855
1/2
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✓ Branch 1 taken 18825 times.
 18825 if (tmp > 2) {
1856 ✗ av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1857 ✗ return AVERROR_INVALIDDATA;
1858 }
1859 18825 sl->cabac_init_idc = tmp;
1860 }
1861
1862 38122 sl->last_qscale_diff = 0;
1863 38122 tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1864
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38122 times.
 38122 if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1865 ✗ av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1866 ✗ return AVERROR_INVALIDDATA;
1867 }
1868 38122 sl->qscale = tmp;
1869 38122 sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1870 38122 sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1871 // FIXME qscale / qp ... stuff
1872
1/2
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✓ Branch 1 taken 38122 times.
 38122 if (sl->slice_type == AV_PICTURE_TYPE_SP)
1873 ✗ get_bits1(&sl->gb); /* sp_for_switch_flag */
1874
1/2
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✗ Branch 1 not taken.
 38122 if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1875
1/2
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✓ Branch 1 taken 38122 times.
 38122 sl->slice_type == AV_PICTURE_TYPE_SI)
1876 ✗ get_se_golomb(&sl->gb); /* slice_qs_delta */
1877
1878 38122 sl->deblocking_filter = 1;
1879 38122 sl->slice_alpha_c0_offset = 0;
1880 38122 sl->slice_beta_offset = 0;
1881
2/2
✓ Branch 0 taken 23325 times.
✓ Branch 1 taken 14797 times.
 38122 if (pps->deblocking_filter_parameters_present) {
1882 23325 tmp = get_ue_golomb_31(&sl->gb);
1883
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 23325 times.
 23325 if (tmp > 2) {
1884 ✗ av_log(h->avctx, AV_LOG_ERROR,
1885 "deblocking_filter_idc %u out of range\n", tmp);
1886 ✗ return AVERROR_INVALIDDATA;
1887 }
1888 23325 sl->deblocking_filter = tmp;
1889
2/2
✓ Branch 0 taken 20622 times.
✓ Branch 1 taken 2703 times.
 23325 if (sl->deblocking_filter < 2)
1890 20622 sl->deblocking_filter ^= 1; // 1<->0
1891
1892
2/2
✓ Branch 0 taken 15614 times.
✓ Branch 1 taken 7711 times.
 23325 if (sl->deblocking_filter) {
1893 15614 int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1894 15614 int slice_beta_offset_div2 = get_se_golomb(&sl->gb);
1895
2/4
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✗ Branch 3 not taken.
 15614 if (slice_alpha_c0_offset_div2 > 6 ||
1896
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✗ Branch 1 not taken.
 15614 slice_alpha_c0_offset_div2 < -6 ||
1897
1/2
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✓ Branch 1 taken 15614 times.
 15614 slice_beta_offset_div2 > 6 ||
1898 slice_beta_offset_div2 < -6) {
1899 ✗ av_log(h->avctx, AV_LOG_ERROR,
1900 "deblocking filter parameters %d %d out of range\n",
1901 slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1902 ✗ return AVERROR_INVALIDDATA;
1903 }
1904 15614 sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1905 15614 sl->slice_beta_offset = slice_beta_offset_div2 * 2;
1906 }
1907 }
1908
1909 38122 return 0;
1910 }
1911
1912 /* do all the per-slice initialization needed before we can start decoding the
1913 * actual MBs */
1914 38042 static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1915 const H2645NAL *nal)
1916 {
1917 38042 int i, j, ret = 0;
1918
1919
3/4
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✓ Branch 1 taken 35765 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 2277 times.
 38042 if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1920 ✗ av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1921 ✗ return AVERROR_INVALIDDATA;
1922 }
1923
1924 av_assert1(h->mb_num == h->mb_width * h->mb_height);
1925
5/6
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✓ Branch 2 taken 9160 times.
✓ Branch 3 taken 23906 times.
✓ Branch 4 taken 38042 times.
✗ Branch 5 not taken.
 38042 if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1926
1/2
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✓ Branch 1 taken 38042 times.
 38042 sl->first_mb_addr >= h->mb_num) {
1927 ✗ av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1928 ✗ return AVERROR_INVALIDDATA;
1929 }
1930 38042 sl->resync_mb_x = sl->mb_x = sl->first_mb_addr % h->mb_width;
1931 76084 sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1932
4/4
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✓ Branch 1 taken 4976 times.
✓ Branch 2 taken 9160 times.
✓ Branch 3 taken 23906 times.
 38042 FIELD_OR_MBAFF_PICTURE(h);
1933
2/2
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✓ Branch 1 taken 33466 times.
 38042 if (h->picture_structure == PICT_BOTTOM_FIELD)
1934 4576 sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1935 av_assert1(sl->mb_y < h->mb_height);
1936
1937 38042 ret = ff_h264_build_ref_list(h, sl);
1938
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✓ Branch 1 taken 38042 times.
 38042 if (ret < 0)
1939 ✗ return ret;
1940
1941
2/2
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✓ Branch 1 taken 33769 times.
 38042 if (h->ps.pps->weighted_bipred_idc == 2 &&
1942
2/2
✓ Branch 0 taken 2307 times.
✓ Branch 1 taken 1966 times.
 4273 sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1943 2307 implicit_weight_table(h, sl, -1);
1944
2/2
✓ Branch 0 taken 856 times.
✓ Branch 1 taken 1451 times.
 2307 if (FRAME_MBAFF(h)) {
1945 856 implicit_weight_table(h, sl, 0);
1946 856 implicit_weight_table(h, sl, 1);
1947 }
1948 }
1949
1950
4/4
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✓ Branch 1 taken 24570 times.
✓ Branch 2 taken 7710 times.
✓ Branch 3 taken 5762 times.
 38042 if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1951 7710 ff_h264_direct_dist_scale_factor(h, sl);
1952
1/2
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✗ Branch 1 not taken.
 38042 if (!h->setup_finished)
1953 38042 ff_h264_direct_ref_list_init(h, sl);
1954
1955
1/2
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✗ Branch 1 not taken.
 38042 if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1956
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✓ Branch 1 taken 38042 times.
 38042 (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1957 ✗ h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1958
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1959 ✗ sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1960
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
1961 ✗ sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1962
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1963 ✗ nal->ref_idc == 0))
1964 ✗ sl->deblocking_filter = 0;
1965
1966
3/4
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✓ Branch 1 taken 10414 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 27628 times.
 38042 if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
1967 ✗ if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
1968 /* Cheat slightly for speed:
1969 * Do not bother to deblock across slices. */
1970 ✗ sl->deblocking_filter = 2;
1971 } else {
1972 ✗ h->postpone_filter = 1;
1973 }
1974 }
1975 38042 sl->qp_thresh = 15 -
1976 38042 FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
1977 38042 FFMAX3(0,
1978 h->ps.pps->chroma_qp_index_offset[0],
1979 38042 h->ps.pps->chroma_qp_index_offset[1]) +
1980 38042 6 * (h->ps.sps->bit_depth_luma - 8);
1981
1982 38042 sl->slice_num = ++h->current_slice;
1983
1984
1/2
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✗ Branch 1 not taken.
 38042 if (sl->slice_num)
1985 38042 h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
1986
2/2
✓ Branch 0 taken 35069 times.
✓ Branch 1 taken 2973 times.
 38042 if ( h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
1987
2/2
✓ Branch 0 taken 26231 times.
✓ Branch 1 taken 8838 times.
 35069 && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
1988
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26231 times.
 26231 && sl->slice_num >= MAX_SLICES) {
1989 //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
1990 ✗ av_log(h->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", sl->slice_num, MAX_SLICES);
1991 }
1992
1993
2/2
✓ Branch 0 taken 76084 times.
✓ Branch 1 taken 38042 times.
 114126 for (j = 0; j < 2; j++) {
1994 int id_list[16];
1995 76084 int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
1996
2/2
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✓ Branch 1 taken 76084 times.
 1293428 for (i = 0; i < 16; i++) {
1997 1217344 id_list[i] = 60;
1998
4/4
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✓ Branch 1 taken 464880 times.
✓ Branch 2 taken 142005 times.
✓ Branch 3 taken 610459 times.
 1217344 if (j < sl->list_count && i < sl->ref_count[j] &&
1999
1/2
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✗ Branch 1 not taken.
 142005 sl->ref_list[j][i].parent->f->buf[0]) {
2000 int k;
2001 142005 const AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2002
2/2
✓ Branch 0 taken 472135 times.
✓ Branch 1 taken 1933 times.
 474068 for (k = 0; k < h->short_ref_count; k++)
2003
2/2
✓ Branch 0 taken 140072 times.
✓ Branch 1 taken 332063 times.
 472135 if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2004 140072 id_list[i] = k;
2005 140072 break;
2006 }
2007
2/2
✓ Branch 0 taken 11870 times.
✓ Branch 1 taken 140213 times.
 152083 for (k = 0; k < h->long_ref_count; k++)
2008
4/4
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✓ Branch 1 taken 601 times.
✓ Branch 2 taken 1792 times.
✓ Branch 3 taken 9477 times.
 11870 if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2009 1792 id_list[i] = h->short_ref_count + k;
2010 1792 break;
2011 }
2012 }
2013 }
2014
2015 76084 ref2frm[0] =
2016 76084 ref2frm[1] = -1;
2017
2/2
✓ Branch 0 taken 1217344 times.
✓ Branch 1 taken 76084 times.
 1293428 for (i = 0; i < 16; i++)
2018 1217344 ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2019 76084 ref2frm[18 + 0] =
2020 76084 ref2frm[18 + 1] = -1;
2021
2/2
✓ Branch 0 taken 2434688 times.
✓ Branch 1 taken 76084 times.
 2510772 for (i = 16; i < 48; i++)
2022 2434688 ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2023 2434688 (sl->ref_list[j][i].reference & 3);
2024 }
2025
2026
2/2
✓ Branch 0 taken 4485 times.
✓ Branch 1 taken 33557 times.
 38042 if (sl->slice_type_nos == AV_PICTURE_TYPE_I) {
2027 4485 h->cur_pic_ptr->gray = 0;
2028 4485 h->non_gray = 1;
2029 } else {
2030 33557 int gray = 0;
2031
2/2
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✓ Branch 1 taken 33557 times.
 80586 for (j = 0; j < sl->list_count; j++) {
2032
2/2
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✓ Branch 1 taken 47029 times.
 189034 for (i = 0; i < sl->ref_count[j]; i++) {
2033 142005 gray |= sl->ref_list[j][i].parent->gray;
2034 }
2035 }
2036 33557 h->cur_pic_ptr->gray = gray;
2037 }
2038
2039
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2040 ✗ av_log(h->avctx, AV_LOG_DEBUG,
2041 "slice:%d %c mb:%d %c%s%s frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
2042 sl->slice_num,
2043 ✗ (h->picture_structure == PICT_FRAME ? 'F' : h->picture_structure == PICT_TOP_FIELD ? 'T' : 'B'),
2044 ✗ sl->mb_y * h->mb_width + sl->mb_x,
2045 ✗ av_get_picture_type_char(sl->slice_type),
2046 ✗ sl->slice_type_fixed ? " fix" : "",
2047 ✗ nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2048 h->poc.frame_num,
2049 ✗ h->cur_pic_ptr->field_poc[0],
2050 ✗ h->cur_pic_ptr->field_poc[1],
2051 sl->ref_count[0], sl->ref_count[1],
2052 sl->qscale,
2053 sl->deblocking_filter,
2054 sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2055 sl->pwt.use_weight,
2056 ✗ sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2057 ✗ sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2058 }
2059
2060 38042 return 0;
2061 }
2062
2063 38289 int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2064 {
2065 38289 H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2066
4/4
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✓ Branch 1 taken 450 times.
✓ Branch 2 taken 28916 times.
✓ Branch 3 taken 8923 times.
 38289 int first_slice = sl == h->slice_ctx && !h->current_slice;
2067 int ret;
2068
2069 38289 sl->gb = nal->gb;
2070
2071 38289 ret = h264_slice_header_parse(h, sl, nal);
2072
2/2
✓ Branch 0 taken 167 times.
✓ Branch 1 taken 38122 times.
 38289 if (ret < 0)
2073 167 return ret;
2074
2075 // discard redundant pictures
2076
1/2
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✓ Branch 1 taken 38122 times.
 38122 if (sl->redundant_pic_count > 0) {
2077 ✗ sl->ref_count[0] = sl->ref_count[1] = 0;
2078 ✗ return 0;
2079 }
2080
2081
3/4
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✓ Branch 1 taken 28948 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 9174 times.
 38122 if (sl->first_mb_addr == 0 || !h->current_slice) {
2082
1/2
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✓ Branch 1 taken 28948 times.
 28948 if (h->setup_finished) {
2083 ✗ av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2084 ✗ return AVERROR_INVALIDDATA;
2085 }
2086 }
2087
2088
2/2
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✓ Branch 1 taken 9174 times.
 38122 if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2089
2/2
✓ Branch 0 taken 195 times.
✓ Branch 1 taken 28753 times.
 28948 if (h->current_slice) {
2090 // this slice starts a new field
2091 // first decode any pending queued slices
2092
1/2
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✓ Branch 1 taken 195 times.
 195 if (h->nb_slice_ctx_queued) {
2093 H264SliceContext tmp_ctx;
2094
2095 ✗ ret = ff_h264_execute_decode_slices(h);
2096 ✗ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2097 ✗ return ret;
2098
2099 ✗ memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2100 ✗ memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2101 ✗ memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2102 ✗ sl = h->slice_ctx;
2103 }
2104
2105
3/6
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✗ Branch 1 not taken.
✓ Branch 2 taken 195 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 195 times.
✗ Branch 5 not taken.
 195 if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2106 195 ret = ff_h264_field_end(h, h->slice_ctx, 1);
2107
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 195 times.
 195 if (ret < 0)
2108 ✗ return ret;
2109 ✗ } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type == H264_NAL_IDR_SLICE) {
2110 ✗ av_log(h->avctx, AV_LOG_WARNING, "Broken frame packetizing\n");
2111 ✗ ret = ff_h264_field_end(h, h->slice_ctx, 1);
2112 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2113 ✗ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2114 ✗ h->cur_pic_ptr = NULL;
2115 ✗ if (ret < 0)
2116 ✗ return ret;
2117 } else
2118 ✗ return AVERROR_INVALIDDATA;
2119 }
2120
2121
2/2
✓ Branch 0 taken 25530 times.
✓ Branch 1 taken 3418 times.
 28948 if (!h->first_field) {
2122
3/4
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✓ Branch 1 taken 25231 times.
✓ Branch 2 taken 299 times.
✗ Branch 3 not taken.
 25530 if (h->cur_pic_ptr && !h->droppable) {
2123 299 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2124 299 h->picture_structure == PICT_BOTTOM_FIELD);
2125 }
2126 25530 h->cur_pic_ptr = NULL;
2127 }
2128 }
2129
2130
2/2
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✓ Branch 1 taken 9174 times.
 38122 if (!h->current_slice)
2131
1/2
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✓ Branch 1 taken 28948 times.
 28948 av_assert0(sl == h->slice_ctx);
2132
2133
4/4
✓ Branch 0 taken 28948 times.
✓ Branch 1 taken 9174 times.
✓ Branch 2 taken 25530 times.
✓ Branch 3 taken 3418 times.
 38122 if (h->current_slice == 0 && !h->first_field) {
2134 25530 if (
2135
3/4
✓ Branch 0 taken 84 times.
✓ Branch 1 taken 25446 times.
✓ Branch 2 taken 84 times.
✗ Branch 3 not taken.
 25530 (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2136
4/4
✓ Branch 0 taken 84 times.
✓ Branch 1 taken 25446 times.
✓ Branch 2 taken 40 times.
✓ Branch 3 taken 44 times.
 25530 (h->avctx->skip_frame >= AVDISCARD_BIDIR && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2137
4/4
✓ Branch 0 taken 40 times.
✓ Branch 1 taken 25446 times.
✓ Branch 2 taken 4 times.
✓ Branch 3 taken 36 times.
 25486 (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2138
4/6
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 25448 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 2 times.
✗ Branch 5 not taken.
 25450 (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2139
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25450 times.
 25450 h->avctx->skip_frame >= AVDISCARD_ALL) {
2140 80 return 0;
2141 }
2142 }
2143
2144
2/2
✓ Branch 0 taken 9369 times.
✓ Branch 1 taken 28673 times.
 38042 if (!first_slice) {
2145 9369 const PPS *pps = h->ps.pps_list[sl->pps_id];
2146
2147
1/2
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✗ Branch 1 not taken.
 9369 if (h->ps.pps->sps_id != pps->sps_id ||
2148
1/2
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✓ Branch 1 taken 9369 times.
 9369 h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2149 (h->setup_finished && h->ps.pps != pps)*/) {
2150 ✗ av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2151 ✗ return AVERROR_INVALIDDATA;
2152 }
2153
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9369 times.
 9369 if (h->ps.sps != pps->sps) {
2154 ✗ av_log(h->avctx, AV_LOG_ERROR,
2155 "SPS changed in the middle of the frame\n");
2156 ✗ return AVERROR_INVALIDDATA;
2157 }
2158 }
2159
2160
2/2
✓ Branch 0 taken 28868 times.
✓ Branch 1 taken 9174 times.
 38042 if (h->current_slice == 0) {
2161 28868 ret = h264_field_start(h, sl, nal, first_slice);
2162
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28868 times.
 28868 if (ret < 0)
2163 ✗ return ret;
2164 } else {
2165
1/2
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✗ Branch 1 not taken.
 9174 if (h->picture_structure != sl->picture_structure ||
2166
1/2
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✓ Branch 1 taken 9174 times.
 9174 h->droppable != (nal->ref_idc == 0)) {
2167 ✗ av_log(h->avctx, AV_LOG_ERROR,
2168 "Changing field mode (%d -> %d) between slices is not allowed\n",
2169 h->picture_structure, sl->picture_structure);
2170 ✗ return AVERROR_INVALIDDATA;
2171
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✗ Branch 0 not taken.
✓ Branch 1 taken 9174 times.
 9174 } else if (!h->cur_pic_ptr) {
2172 ✗ av_log(h->avctx, AV_LOG_ERROR,
2173 "unset cur_pic_ptr on slice %d\n",
2174 ✗ h->current_slice + 1);
2175 ✗ return AVERROR_INVALIDDATA;
2176 }
2177 }
2178
2179 38042 ret = h264_slice_init(h, sl, nal);
2180
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 38042 if (ret < 0)
2181 ✗ return ret;
2182
2183 38042 h->nb_slice_ctx_queued++;
2184
2185 38042 return 0;
2186 }
2187
2188 ✗ int ff_h264_get_slice_type(const H264SliceContext *sl)
2189 {
2190 ✗ switch (sl->slice_type) {
2191 ✗ case AV_PICTURE_TYPE_P:
2192 ✗ return 0;
2193 ✗ case AV_PICTURE_TYPE_B:
2194 ✗ return 1;
2195 ✗ case AV_PICTURE_TYPE_I:
2196 ✗ return 2;
2197 ✗ case AV_PICTURE_TYPE_SP:
2198 ✗ return 3;
2199 ✗ case AV_PICTURE_TYPE_SI:
2200 ✗ return 4;
2201 ✗ default:
2202 ✗ return AVERROR_INVALIDDATA;
2203 }
2204 }
2205
2206 12578855 static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2207 H264SliceContext *sl,
2208 int mb_type, int top_xy,
2209 const int left_xy[LEFT_MBS],
2210 int top_type,
2211 const int left_type[LEFT_MBS],
2212 int mb_xy, int list)
2213 {
2214 12578855 int b_stride = h->b_stride;
2215 12578855 int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2216 12578855 int8_t *ref_cache = &sl->ref_cache[list][scan8[0]];
2217
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 12578855 if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2218
2/2
✓ Branch 0 taken 10119900 times.
✓ Branch 1 taken 2458955 times.
 12578855 if (USES_LIST(top_type, list)) {
2219 10119900 const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
2220 10119900 const int b8_xy = 4 * top_xy + 2;
2221
2/2
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✓ Branch 1 taken 9776521 times.
 10119900 const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2222 10119900 AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2223 10119900 ref_cache[0 - 1 * 8] =
2224 10119900 ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2225 10119900 ref_cache[2 - 1 * 8] =
2226 10119900 ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2227 } else {
2228 2458955 AV_ZERO128(mv_dst - 1 * 8);
2229 2458955 AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2230 }
2231
2232
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✓ Branch 1 taken 434713 times.
 12578855 if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2233
2/2
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✓ Branch 1 taken 1994698 times.
 12144142 if (USES_LIST(left_type[LTOP], list)) {
2234 10149444 const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
2235 10149444 const int b8_xy = 4 * left_xy[LTOP] + 1;
2236
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✓ Branch 1 taken 9909015 times.
 10149444 const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2237 10149444 AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2238 10149444 AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2239 10149444 AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2240 10149444 AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2241 10149444 ref_cache[-1 + 0] =
2242 10149444 ref_cache[-1 + 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2243 10149444 ref_cache[-1 + 16] =
2244 10149444 ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2245 } else {
2246 1994698 AV_ZERO32(mv_dst - 1 + 0);
2247 1994698 AV_ZERO32(mv_dst - 1 + 8);
2248 1994698 AV_ZERO32(mv_dst - 1 + 16);
2249 1994698 AV_ZERO32(mv_dst - 1 + 24);
2250 1994698 ref_cache[-1 + 0] =
2251 1994698 ref_cache[-1 + 8] =
2252 1994698 ref_cache[-1 + 16] =
2253 1994698 ref_cache[-1 + 24] = LIST_NOT_USED;
2254 }
2255 }
2256 }
2257
2258
2/2
✓ Branch 0 taken 1400827 times.
✓ Branch 1 taken 11178028 times.
 12578855 if (!USES_LIST(mb_type, list)) {
2259 1400827 fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2260 1400827 AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2261 1400827 AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2262 1400827 AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2263 1400827 AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2264 1400827 return;
2265 }
2266
2267 {
2268 11178028 const int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2269
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✓ Branch 0 taken 414359 times.
✓ Branch 1 taken 10763669 times.
 11178028 const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2270 11178028 uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2271 11178028 uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2272 11178028 AV_WN32A(&ref_cache[0 * 8], ref01);
2273 11178028 AV_WN32A(&ref_cache[1 * 8], ref01);
2274 11178028 AV_WN32A(&ref_cache[2 * 8], ref23);
2275 11178028 AV_WN32A(&ref_cache[3 * 8], ref23);
2276 }
2277
2278 {
2279 11178028 int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2280 11178028 AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2281 11178028 AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2282 11178028 AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2283 11178028 AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2284 }
2285 }
2286
2287 /**
2288 * @return non zero if the loop filter can be skipped
2289 */
2290 12803158 static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2291 {
2292 12803158 const int mb_xy = sl->mb_xy;
2293 int top_xy, left_xy[LEFT_MBS];
2294 int top_type, left_type[LEFT_MBS];
2295 const uint8_t *nnz;
2296 uint8_t *nnz_cache;
2297
2298 12803158 top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2299
2300 12803158 left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2301
2/2
✓ Branch 0 taken 2023440 times.
✓ Branch 1 taken 10779718 times.
 12803158 if (FRAME_MBAFF(h)) {
2302 2023440 const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2303 2023440 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2304
2/2
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✓ Branch 1 taken 1011720 times.
 2023440 if (sl->mb_y & 1) {
2305
2/2
✓ Branch 0 taken 205032 times.
✓ Branch 1 taken 806688 times.
 1011720 if (left_mb_field_flag != curr_mb_field_flag)
2306 205032 left_xy[LTOP] -= h->mb_stride;
2307 } else {
2308
2/2
✓ Branch 0 taken 263670 times.
✓ Branch 1 taken 748050 times.
 1011720 if (curr_mb_field_flag)
2309 263670 top_xy += h->mb_stride &
2310 263670 (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2311
2/2
✓ Branch 0 taken 205032 times.
✓ Branch 1 taken 806688 times.
 1011720 if (left_mb_field_flag != curr_mb_field_flag)
2312 205032 left_xy[LBOT] += h->mb_stride;
2313 }
2314 }
2315
2316 12803158 sl->top_mb_xy = top_xy;
2317 12803158 sl->left_mb_xy[LTOP] = left_xy[LTOP];
2318 12803158 sl->left_mb_xy[LBOT] = left_xy[LBOT];
2319 {
2320 /* For sufficiently low qp, filtering wouldn't do anything.
2321 * This is a conservative estimate: could also check beta_offset
2322 * and more accurate chroma_qp. */
2323 12803158 int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2324 12803158 int qp = h->cur_pic.qscale_table[mb_xy];
2325
2/2
✓ Branch 0 taken 1837763 times.
✓ Branch 1 taken 10965395 times.
 12803158 if (qp <= qp_thresh &&
2326
2/2
✓ Branch 0 taken 1835784 times.
✓ Branch 1 taken 1979 times.
 1837763 (left_xy[LTOP] < 0 ||
2327
4/4
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✓ Branch 1 taken 60897 times.
✓ Branch 2 taken 1686260 times.
✓ Branch 3 taken 90606 times.
 1837763 ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2328 1686260 (top_xy < 0 ||
2329
2/2
✓ Branch 0 taken 1489956 times.
✓ Branch 1 taken 196304 times.
 1686260 ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2330
2/2
✓ Branch 0 taken 1264751 times.
✓ Branch 1 taken 315811 times.
 1580562 if (!FRAME_MBAFF(h))
2331 1264751 return 1;
2332
2/2
✓ Branch 0 taken 315680 times.
✓ Branch 1 taken 131 times.
 315811 if ((left_xy[LTOP] < 0 ||
2333
2/2
✓ Branch 0 taken 315151 times.
✓ Branch 1 taken 529 times.
 315680 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2334
2/2
✓ Branch 0 taken 294673 times.
✓ Branch 1 taken 20609 times.
 315282 (top_xy < h->mb_stride ||
2335
2/2
✓ Branch 0 taken 271562 times.
✓ Branch 1 taken 23111 times.
 294673 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2336 292171 return 1;
2337 }
2338 }
2339
2340 11246236 top_type = h->cur_pic.mb_type[top_xy];
2341 11246236 left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2342 11246236 left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2343
2/2
✓ Branch 0 taken 490374 times.
✓ Branch 1 taken 10755862 times.
 11246236 if (sl->deblocking_filter == 2) {
2344
2/2
✓ Branch 0 taken 61322 times.
✓ Branch 1 taken 429052 times.
 490374 if (h->slice_table[top_xy] != sl->slice_num)
2345 61322 top_type = 0;
2346
2/2
✓ Branch 0 taken 14783 times.
✓ Branch 1 taken 475591 times.
 490374 if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2347 14783 left_type[LTOP] = left_type[LBOT] = 0;
2348 } else {
2349
2/2
✓ Branch 0 taken 478208 times.
✓ Branch 1 taken 10277654 times.
 10755862 if (h->slice_table[top_xy] == 0xFFFF)
2350 478208 top_type = 0;
2351
2/2
✓ Branch 0 taken 310301 times.
✓ Branch 1 taken 10445561 times.
 10755862 if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2352 310301 left_type[LTOP] = left_type[LBOT] = 0;
2353 }
2354 11246236 sl->top_type = top_type;
2355 11246236 sl->left_type[LTOP] = left_type[LTOP];
2356 11246236 sl->left_type[LBOT] = left_type[LBOT];
2357
2358
2/2
✓ Branch 0 taken 2993158 times.
✓ Branch 1 taken 8253078 times.
 11246236 if (IS_INTRA(mb_type))
2359 2993158 return 0;
2360
2361 8253078 fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2362 top_type, left_type, mb_xy, 0);
2363
2/2
✓ Branch 0 taken 4325777 times.
✓ Branch 1 taken 3927301 times.
 8253078 if (sl->list_count == 2)
2364 4325777 fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2365 top_type, left_type, mb_xy, 1);
2366
2367 8253078 nnz = h->non_zero_count[mb_xy];
2368 8253078 nnz_cache = sl->non_zero_count_cache;
2369 8253078 AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2370 8253078 AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2371 8253078 AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2372 8253078 AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2373 8253078 sl->cbp = h->cbp_table[mb_xy];
2374
2375
2/2
✓ Branch 0 taken 7817681 times.
✓ Branch 1 taken 435397 times.
 8253078 if (top_type) {
2376 7817681 nnz = h->non_zero_count[top_xy];
2377 7817681 AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2378 }
2379
2380
2/2
✓ Branch 0 taken 7982767 times.
✓ Branch 1 taken 270311 times.
 8253078 if (left_type[LTOP]) {
2381 7982767 nnz = h->non_zero_count[left_xy[LTOP]];
2382 7982767 nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2383 7982767 nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2384 7982767 nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2385 7982767 nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2386 }
2387
2388 /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2389 * from what the loop filter needs */
2390
4/4
✓ Branch 0 taken 2070968 times.
✓ Branch 1 taken 6182110 times.
✓ Branch 2 taken 246166 times.
✓ Branch 3 taken 1824802 times.
 8253078 if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2391
2/2
✓ Branch 0 taken 107789 times.
✓ Branch 1 taken 138377 times.
 246166 if (IS_8x8DCT(top_type)) {
2392 107789 nnz_cache[4 + 8 * 0] =
2393 107789 nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2394 107789 nnz_cache[6 + 8 * 0] =
2395 107789 nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2396 }
2397
2/2
✓ Branch 0 taken 110456 times.
✓ Branch 1 taken 135710 times.
 246166 if (IS_8x8DCT(left_type[LTOP])) {
2398 110456 nnz_cache[3 + 8 * 1] =
2399 110456 nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2400 }
2401
2/2
✓ Branch 0 taken 110556 times.
✓ Branch 1 taken 135610 times.
 246166 if (IS_8x8DCT(left_type[LBOT])) {
2402 110556 nnz_cache[3 + 8 * 3] =
2403 110556 nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2404 }
2405
2406
2/2
✓ Branch 0 taken 104872 times.
✓ Branch 1 taken 141294 times.
 246166 if (IS_8x8DCT(mb_type)) {
2407 104872 nnz_cache[scan8[0]] =
2408 104872 nnz_cache[scan8[1]] =
2409 104872 nnz_cache[scan8[2]] =
2410 104872 nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2411
2412 104872 nnz_cache[scan8[0 + 4]] =
2413 104872 nnz_cache[scan8[1 + 4]] =
2414 104872 nnz_cache[scan8[2 + 4]] =
2415 104872 nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2416
2417 104872 nnz_cache[scan8[0 + 8]] =
2418 104872 nnz_cache[scan8[1 + 8]] =
2419 104872 nnz_cache[scan8[2 + 8]] =
2420 104872 nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2421
2422 104872 nnz_cache[scan8[0 + 12]] =
2423 104872 nnz_cache[scan8[1 + 12]] =
2424 104872 nnz_cache[scan8[2 + 12]] =
2425 104872 nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2426 }
2427 }
2428
2429 8253078 return 0;
2430 }
2431
2432 411450 static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2433 {
2434 uint8_t *dest_y, *dest_cb, *dest_cr;
2435 int linesize, uvlinesize, mb_x, mb_y;
2436 411450 const int end_mb_y = sl->mb_y + FRAME_MBAFF(h);
2437 411450 const int old_slice_type = sl->slice_type;
2438 411450 const int pixel_shift = h->pixel_shift;
2439 411450 const int block_h = 16 >> h->chroma_y_shift;
2440
2441
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 411450 times.
 411450 if (h->postpone_filter)
2442 ✗ return;
2443
2444
2/2
✓ Branch 0 taken 334482 times.
✓ Branch 1 taken 76968 times.
 411450 if (sl->deblocking_filter) {
2445
2/2
✓ Branch 0 taken 11791438 times.
✓ Branch 1 taken 334482 times.
 12125920 for (mb_x = start_x; mb_x < end_x; mb_x++)
2446
2/2
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✓ Branch 1 taken 11791438 times.
 24594596 for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2447 int mb_xy, mb_type;
2448 12803158 mb_xy = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2449 12803158 mb_type = h->cur_pic.mb_type[mb_xy];
2450
2451
2/2
✓ Branch 0 taken 2023440 times.
✓ Branch 1 taken 10779718 times.
 12803158 if (FRAME_MBAFF(h))
2452 2023440 sl->mb_mbaff =
2453 2023440 sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2454
2455 12803158 sl->mb_x = mb_x;
2456 12803158 sl->mb_y = mb_y;
2457 12803158 dest_y = h->cur_pic.f->data[0] +
2458 12803158 ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2459 25606316 dest_cb = h->cur_pic.f->data[1] +
2460
2/2
✓ Branch 0 taken 80328 times.
✓ Branch 1 taken 12722830 times.
 12803158 (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2461 12803158 mb_y * sl->uvlinesize * block_h;
2462 25606316 dest_cr = h->cur_pic.f->data[2] +
2463
2/2
✓ Branch 0 taken 80328 times.
✓ Branch 1 taken 12722830 times.
 12803158 (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2464 12803158 mb_y * sl->uvlinesize * block_h;
2465 // FIXME simplify above
2466
2467
2/2
✓ Branch 0 taken 4679076 times.
✓ Branch 1 taken 8124082 times.
 12803158 if (MB_FIELD(sl)) {
2468 4679076 linesize = sl->mb_linesize = sl->linesize * 2;
2469 4679076 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2470
2/2
✓ Branch 0 taken 2336700 times.
✓ Branch 1 taken 2342376 times.
 4679076 if (mb_y & 1) { // FIXME move out of this function?
2471 2336700 dest_y -= sl->linesize * 15;
2472 2336700 dest_cb -= sl->uvlinesize * (block_h - 1);
2473 2336700 dest_cr -= sl->uvlinesize * (block_h - 1);
2474 }
2475 } else {
2476 8124082 linesize = sl->mb_linesize = sl->linesize;
2477 8124082 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2478 }
2479 12803158 backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2480 uvlinesize, 0);
2481
2/2
✓ Branch 1 taken 1556922 times.
✓ Branch 2 taken 11246236 times.
 12803158 if (fill_filter_caches(h, sl, mb_type))
2482 1556922 continue;
2483 11246236 sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2484 11246236 sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2485
2486
2/2
✓ Branch 0 taken 1731269 times.
✓ Branch 1 taken 9514967 times.
 11246236 if (FRAME_MBAFF(h)) {
2487 1731269 ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2488 linesize, uvlinesize);
2489 } else {
2490 9514967 ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2491 dest_cr, linesize, uvlinesize);
2492 }
2493 }
2494 }
2495 411450 sl->slice_type = old_slice_type;
2496 411450 sl->mb_x = end_x;
2497 411450 sl->mb_y = end_mb_y - FRAME_MBAFF(h);
2498 411450 sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2499 411450 sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2500 }
2501
2502 24071 static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2503 {
2504 24071 const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2505 48142 int mb_type = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2506
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 24071 times.
 48142 h->cur_pic.mb_type[mb_xy - 1] :
2507
2/2
✓ Branch 0 taken 23935 times.
✓ Branch 1 taken 136 times.
 24071 (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2508 23935 h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2509 24071 sl->mb_mbaff = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2510 24071 }
2511
2512 /**
2513 * Draw edges and report progress for the last MB row.
2514 */
2515 406890 static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2516 {
2517 406890 int top = 16 * (sl->mb_y >> FIELD_PICTURE(h));
2518 406890 int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
2519 406890 int height = 16 << FRAME_MBAFF(h);
2520 406890 int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2521
2522
2/2
✓ Branch 0 taken 331390 times.
✓ Branch 1 taken 75500 times.
 406890 if (sl->deblocking_filter) {
2523
2/2
✓ Branch 0 taken 23015 times.
✓ Branch 1 taken 308375 times.
 331390 if ((top + height) >= pic_height)
2524 23015 height += deblock_border;
2525 331390 top -= deblock_border;
2526 }
2527
2528
3/4
✓ Branch 0 taken 406890 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 23016 times.
✓ Branch 3 taken 383874 times.
 406890 if (top >= pic_height || (top + height) < 0)
2529 23016 return;
2530
2531 383874 height = FFMIN(height, pic_height - top);
2532
2/2
✓ Branch 0 taken 23016 times.
✓ Branch 1 taken 360858 times.
 383874 if (top < 0) {
2533 23016 height = top + height;
2534 23016 top = 0;
2535 }
2536
2537 383874 ff_h264_draw_horiz_band(h, sl, top, height);
2538
2539
3/4
✓ Branch 0 taken 247755 times.
✓ Branch 1 taken 136119 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 247755 times.
 383874 if (h->droppable || h->er.error_occurred)
2540 136119 return;
2541
2542 247755 ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2543 247755 h->picture_structure == PICT_BOTTOM_FIELD);
2544 }
2545
2546 38042 static void er_add_slice(H264SliceContext *sl,
2547 int startx, int starty,
2548 int endx, int endy, int status)
2549 {
2550
2/2
✓ Branch 0 taken 1200 times.
✓ Branch 1 taken 36842 times.
 38042 if (!sl->h264->enable_er)
2551 1200 return;
2552
2553 if (CONFIG_ERROR_RESILIENCE) {
2554 36842 ff_er_add_slice(sl->er, startx, starty, endx, endy, status);
2555 }
2556 }
2557
2558 38042 static int decode_slice(struct AVCodecContext *avctx, void *arg)
2559 {
2560 38042 H264SliceContext *sl = arg;
2561 38042 const H264Context *h = sl->h264;
2562 38042 int lf_x_start = sl->mb_x;
2563 38042 int orig_deblock = sl->deblocking_filter;
2564 int ret;
2565
2566 38042 sl->linesize = h->cur_pic_ptr->f->linesize[0];
2567 38042 sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2568
2569 38042 ret = alloc_scratch_buffers(sl, sl->linesize);
2570
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 if (ret < 0)
2571 ✗ return ret;
2572
2573 38042 sl->mb_skip_run = -1;
2574
2575
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2576
2577
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 38042 times.
 38042 if (h->postpone_filter)
2578 ✗ sl->deblocking_filter = 0;
2579
2580
4/4
✓ Branch 0 taken 33066 times.
✓ Branch 1 taken 4976 times.
✓ Branch 2 taken 9160 times.
✓ Branch 3 taken 23906 times.
 38042 sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2581 (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2582
2583
5/6
✓ Branch 0 taken 36842 times.
✓ Branch 1 taken 1200 times.
✓ Branch 2 taken 27682 times.
✓ Branch 3 taken 9160 times.
✓ Branch 4 taken 27682 times.
✗ Branch 5 not taken.
 38042 if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && sl->er->error_status_table) {
2584 27682 const int start_i = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2585
2/2
✓ Branch 0 taken 5956 times.
✓ Branch 1 taken 21726 times.
 27682 if (start_i) {
2586 5956 int prev_status = sl->er->error_status_table[sl->er->mb_index2xy[start_i - 1]];
2587 5956 prev_status &= ~ VP_START;
2588
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5956 times.
 5956 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2589 ✗ sl->er->error_occurred = 1;
2590 }
2591 }
2592
2593
2/2
✓ Branch 0 taken 21301 times.
✓ Branch 1 taken 16741 times.
 38042 if (h->ps.pps->cabac) {
2594 /* realign */
2595 21301 align_get_bits(&sl->gb);
2596
2597 /* init cabac */
2598 42602 ret = ff_init_cabac_decoder(&sl->cabac,
2599 21301 sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2600 21301 (get_bits_left(&sl->gb) + 7) / 8);
2601
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21301 times.
 21301 if (ret < 0)
2602 ✗ return ret;
2603
2604 21301 ff_h264_init_cabac_states(h, sl);
2605
2606 9581774 for (;;) {
2607 int ret, eos;
2608
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9603075 times.
 9603075 if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2609 ✗ av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2610 sl->next_slice_idx);
2611 ✗ er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2612 sl->mb_y, ER_MB_ERROR);
2613 ✗ return AVERROR_INVALIDDATA;
2614 }
2615
2616 9603075 ret = ff_h264_decode_mb_cabac(h, sl);
2617
2618
2/2
✓ Branch 0 taken 9603074 times.
✓ Branch 1 taken 1 times.
 9603075 if (ret >= 0)
2619 9603074 ff_h264_hl_decode_mb(h, sl);
2620
2621 // FIXME optimal? or let mb_decode decode 16x32 ?
2622
4/4
✓ Branch 0 taken 9603074 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 903372 times.
✓ Branch 3 taken 8699702 times.
 9603075 if (ret >= 0 && FRAME_MBAFF(h)) {
2623 903372 sl->mb_y++;
2624
2625 903372 ret = ff_h264_decode_mb_cabac(h, sl);
2626
2627
1/2
✓ Branch 0 taken 903372 times.
✗ Branch 1 not taken.
 903372 if (ret >= 0)
2628 903372 ff_h264_hl_decode_mb(h, sl);
2629 903372 sl->mb_y--;
2630 }
2631 9603075 eos = get_cabac_terminate(&sl->cabac);
2632
2633
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9603075 times.
 9603075 if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2634 ✗ sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2635 ✗ er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2636 sl->mb_y, ER_MB_END);
2637 ✗ if (sl->mb_x >= lf_x_start)
2638 ✗ loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2639 ✗ goto finish;
2640 }
2641
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 9603074 times.
 9603075 if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2642 1 av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %td\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2643
4/4
✓ Branch 0 taken 9603074 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 1 times.
✓ Branch 3 taken 9603073 times.
 9603075 if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2644 2 av_log(h->avctx, AV_LOG_ERROR,
2645 "error while decoding MB %d %d, bytestream %td\n",
2646 sl->mb_x, sl->mb_y,
2647 2 sl->cabac.bytestream_end - sl->cabac.bytestream);
2648 2 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2649 sl->mb_y, ER_MB_ERROR);
2650 2 return AVERROR_INVALIDDATA;
2651 }
2652
2653
2/2
✓ Branch 0 taken 245926 times.
✓ Branch 1 taken 9357147 times.
 9603073 if (++sl->mb_x >= h->mb_width) {
2654 245926 loop_filter(h, sl, lf_x_start, sl->mb_x);
2655 245926 sl->mb_x = lf_x_start = 0;
2656 245926 decode_finish_row(h, sl);
2657 245926 ++sl->mb_y;
2658
4/4
✓ Branch 0 taken 225002 times.
✓ Branch 1 taken 20924 times.
✓ Branch 2 taken 60241 times.
✓ Branch 3 taken 164761 times.
 245926 if (FIELD_OR_MBAFF_PICTURE(h)) {
2659 81165 ++sl->mb_y;
2660
4/4
✓ Branch 0 taken 20924 times.
✓ Branch 1 taken 60241 times.
✓ Branch 2 taken 19093 times.
✓ Branch 3 taken 1831 times.
 81165 if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2661 19093 predict_field_decoding_flag(h, sl);
2662 }
2663 }
2664
2665
3/4
✓ Branch 0 taken 9581774 times.
✓ Branch 1 taken 21299 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 9581774 times.
 9603073 if (eos || sl->mb_y >= h->mb_height) {
2666 ff_tlog(h->avctx, "slice end %d %d\n",
2667 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2668 21299 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2669 sl->mb_y, ER_MB_END);
2670
2/2
✓ Branch 0 taken 1382 times.
✓ Branch 1 taken 19917 times.
 21299 if (sl->mb_x > lf_x_start)
2671 1382 loop_filter(h, sl, lf_x_start, sl->mb_x);
2672 21299 goto finish;
2673 }
2674 }
2675 } else {
2676 4575657 for (;;) {
2677 int ret;
2678
2679
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4592398 times.
 4592398 if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2680 ✗ av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2681 sl->next_slice_idx);
2682 ✗ er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2683 sl->mb_y, ER_MB_ERROR);
2684 ✗ return AVERROR_INVALIDDATA;
2685 }
2686
2687 4592398 ret = ff_h264_decode_mb_cavlc(h, sl);
2688
2689
1/2
✓ Branch 0 taken 4592398 times.
✗ Branch 1 not taken.
 4592398 if (ret >= 0)
2690 4592398 ff_h264_hl_decode_mb(h, sl);
2691
2692 // FIXME optimal? or let mb_decode decode 16x32 ?
2693
3/4
✓ Branch 0 taken 4592398 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 254472 times.
✓ Branch 3 taken 4337926 times.
 4592398 if (ret >= 0 && FRAME_MBAFF(h)) {
2694 254472 sl->mb_y++;
2695 254472 ret = ff_h264_decode_mb_cavlc(h, sl);
2696
2697
1/2
✓ Branch 0 taken 254472 times.
✗ Branch 1 not taken.
 254472 if (ret >= 0)
2698 254472 ff_h264_hl_decode_mb(h, sl);
2699 254472 sl->mb_y--;
2700 }
2701
2702
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4592398 times.
 4592398 if (ret < 0) {
2703 ✗ av_log(h->avctx, AV_LOG_ERROR,
2704 "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2705 ✗ er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2706 sl->mb_y, ER_MB_ERROR);
2707 ✗ return ret;
2708 }
2709
2710
2/2
✓ Branch 0 taken 160964 times.
✓ Branch 1 taken 4431434 times.
 4592398 if (++sl->mb_x >= h->mb_width) {
2711 160964 loop_filter(h, sl, lf_x_start, sl->mb_x);
2712 160964 sl->mb_x = lf_x_start = 0;
2713 160964 decode_finish_row(h, sl);
2714 160964 ++sl->mb_y;
2715
4/4
✓ Branch 0 taken 155487 times.
✓ Branch 1 taken 5477 times.
✓ Branch 2 taken 26666 times.
✓ Branch 3 taken 128821 times.
 160964 if (FIELD_OR_MBAFF_PICTURE(h)) {
2716 32143 ++sl->mb_y;
2717
4/4
✓ Branch 0 taken 5477 times.
✓ Branch 1 taken 26666 times.
✓ Branch 2 taken 4978 times.
✓ Branch 3 taken 499 times.
 32143 if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2718 4978 predict_field_decoding_flag(h, sl);
2719 }
2720
2/2
✓ Branch 0 taken 12651 times.
✓ Branch 1 taken 148313 times.
 160964 if (sl->mb_y >= h->mb_height) {
2721 ff_tlog(h->avctx, "slice end %d %d\n",
2722 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2723
2724
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12651 times.
 12651 if ( get_bits_left(&sl->gb) == 0
2725 ✗ || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2726 12651 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2727 12651 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2728
2729 12651 goto finish;
2730 } else {
2731 ✗ er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2732 sl->mb_x, sl->mb_y, ER_MB_END);
2733
2734 ✗ return AVERROR_INVALIDDATA;
2735 }
2736 }
2737 }
2738
2739
4/4
✓ Branch 1 taken 238513 times.
✓ Branch 2 taken 4341234 times.
✓ Branch 3 taken 4090 times.
✓ Branch 4 taken 234423 times.
 4579747 if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2740 ff_tlog(h->avctx, "slice end %d %d\n",
2741 get_bits_count(&sl->gb), sl->gb.size_in_bits);
2742
2743
1/2
✓ Branch 1 taken 4090 times.
✗ Branch 2 not taken.
 4090 if (get_bits_left(&sl->gb) == 0) {
2744 4090 er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2745 4090 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2746
2/2
✓ Branch 0 taken 3178 times.
✓ Branch 1 taken 912 times.
 4090 if (sl->mb_x > lf_x_start)
2747 3178 loop_filter(h, sl, lf_x_start, sl->mb_x);
2748
2749 4090 goto finish;
2750 } else {
2751 ✗ er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2752 sl->mb_y, ER_MB_ERROR);
2753
2754 ✗ return AVERROR_INVALIDDATA;
2755 }
2756 }
2757 }
2758 }
2759
2760 38040 finish:
2761 38040 sl->deblocking_filter = orig_deblock;
2762 38040 return 0;
2763 }
2764
2765 /**
2766 * Call decode_slice() for each context.
2767 *
2768 * @param h h264 master context
2769 */
2770 67011 int ff_h264_execute_decode_slices(H264Context *h)
2771 {
2772 67011 AVCodecContext *const avctx = h->avctx;
2773 H264SliceContext *sl;
2774 67011 int context_count = h->nb_slice_ctx_queued;
2775 67011 int ret = 0;
2776 int i, j;
2777
2778 67011 h->slice_ctx[0].next_slice_idx = INT_MAX;
2779
2780
3/4
✓ Branch 0 taken 67011 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 29419 times.
✓ Branch 3 taken 37592 times.
 67011 if (h->avctx->hwaccel || context_count < 1)
2781 29419 return 0;
2782
2783
2/4
✓ Branch 0 taken 37592 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 37592 times.
 37592 av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2784
2785
2/2
✓ Branch 0 taken 37142 times.
✓ Branch 1 taken 450 times.
 37592 if (context_count == 1) {
2786
2787 37142 h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2788 37142 h->postpone_filter = 0;
2789
2790 37142 ret = decode_slice(avctx, &h->slice_ctx[0]);
2791 37142 h->mb_y = h->slice_ctx[0].mb_y;
2792
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 37140 times.
 37142 if (ret < 0)
2793 2 goto finish;
2794 } else {
2795
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 450 times.
 450 av_assert0(context_count > 0);
2796
2/2
✓ Branch 0 taken 900 times.
✓ Branch 1 taken 450 times.
 1350 for (i = 0; i < context_count; i++) {
2797 900 int next_slice_idx = h->mb_width * h->mb_height;
2798 int slice_idx;
2799
2800 900 sl = &h->slice_ctx[i];
2801
2802 /* make sure none of those slices overlap */
2803 900 slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2804
2/2
✓ Branch 0 taken 1800 times.
✓ Branch 1 taken 900 times.
 2700 for (j = 0; j < context_count; j++) {
2805 1800 H264SliceContext *sl2 = &h->slice_ctx[j];
2806 1800 int slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2807
2808
4/4
✓ Branch 0 taken 900 times.
✓ Branch 1 taken 900 times.
✓ Branch 2 taken 450 times.
✓ Branch 3 taken 450 times.
 1800 if (i == j || slice_idx2 < slice_idx)
2809 1350 continue;
2810 450 next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2811 }
2812 900 sl->next_slice_idx = next_slice_idx;
2813 }
2814
2815 450 avctx->execute(avctx, decode_slice, h->slice_ctx,
2816 NULL, context_count, sizeof(h->slice_ctx[0]));
2817
2818 /* pull back stuff from slices to master context */
2819 450 sl = &h->slice_ctx[context_count - 1];
2820 450 h->mb_y = sl->mb_y;
2821
2822
1/2
✓ Branch 0 taken 450 times.
✗ Branch 1 not taken.
 450 if (h->postpone_filter) {
2823 ✗ h->postpone_filter = 0;
2824
2825 ✗ for (i = 0; i < context_count; i++) {
2826 int y_end, x_end;
2827
2828 ✗ sl = &h->slice_ctx[i];
2829 ✗ y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2830 ✗ x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2831
2832 ✗ for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2833 ✗ sl->mb_y = j;
2834 ✗ loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2835 ✗ j == y_end - 1 ? x_end : h->mb_width);
2836 }
2837 }
2838 }
2839 }
2840
2841 450 finish:
2842 37592 h->nb_slice_ctx_queued = 0;
2843 37592 return ret;
2844 }
2845