FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_h264_syntax_template.c
Date: 2025-11-03 14:06:37
Exec Total Coverage
Lines: 484 716 67.6%
Functions: 49 64 76.6%
Branches: 497 1144 43.4%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 11290 static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw)
20 {
21 int err;
22
23
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 11290 fixed(1, rbsp_stop_one_bit, 1);
24
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 60878 while (byte_alignment(rw) != 0)
25
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 49590 fixed(1, rbsp_alignment_zero_bit, 0);
26
27 11288 return 0;
28 }
29
30 34572 static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw,
31 H264RawNALUnitHeader *current,
32 uint32_t valid_type_mask)
33 {
34 int err;
35
36
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 34572 fixed(1, forbidden_zero_bit, 0);
37
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 34572 ub(2, nal_ref_idc);
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 34572 ub(5, nal_unit_type);
39
40
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 34572 if (!(1 << current->nal_unit_type & valid_type_mask)) {
41 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid NAL unit type %d.\n",
42 ✗ current->nal_unit_type);
43 ✗ return AVERROR_INVALIDDATA;
44 }
45
46
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 34572 if (current->nal_unit_type == 14 ||
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 34572 current->nal_unit_type == 20 ||
48
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 34572 current->nal_unit_type == 21) {
49 ✗ if (current->nal_unit_type != 21)
50 ✗ flag(svc_extension_flag);
51 else
52 ✗ flag(avc_3d_extension_flag);
53
54 ✗ if (current->svc_extension_flag) {
55 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "SVC not supported.\n");
56 ✗ return AVERROR_PATCHWELCOME;
57
58 ✗ } else if (current->avc_3d_extension_flag) {
59 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "3DAVC not supported.\n");
60 ✗ return AVERROR_PATCHWELCOME;
61
62 } else {
63 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "MVC not supported.\n");
64 ✗ return AVERROR_PATCHWELCOME;
65 }
66 }
67
68 34572 return 0;
69 }
70
71 ✗ static int FUNC(scaling_list)(CodedBitstreamContext *ctx, RWContext *rw,
72 H264RawScalingList *current,
73 int size_of_scaling_list)
74 {
75 int err, i, scale;
76
77 ✗ scale = 8;
78 ✗ for (i = 0; i < size_of_scaling_list; i++) {
79 ✗ ses(delta_scale[i], -128, +127, 1, i);
80 ✗ scale = (scale + current->delta_scale[i] + 256) % 256;
81 ✗ if (scale == 0)
82 ✗ break;
83 }
84
85 ✗ return 0;
86 }
87
88 44 static int FUNC(hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
89 H264RawHRD *current)
90 {
91 int err, i;
92
93
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 44 ue(cpb_cnt_minus1, 0, 31);
94
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 44 ub(4, bit_rate_scale);
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 44 ub(4, cpb_size_scale);
96
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 88 for (i = 0; i <= current->cpb_cnt_minus1; i++) {
98
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 44 ues(bit_rate_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
99
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 44 ues(cpb_size_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
100
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 44 flags(cbr_flag[i], 1, i);
101 }
102
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 44 ub(5, initial_cpb_removal_delay_length_minus1);
104
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 44 ub(5, cpb_removal_delay_length_minus1);
105
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 44 ub(5, dpb_output_delay_length_minus1);
106
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 44 ub(5, time_offset_length);
107
108 44 return 0;
109 }
110
111 72 static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
112 H264RawVUI *current, H264RawSPS *sps)
113 {
114 int err;
115
116
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 72 flag(aspect_ratio_info_present_flag);
117
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 72 if (current->aspect_ratio_info_present_flag) {
118
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 56 ub(8, aspect_ratio_idc);
119
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 56 if (current->aspect_ratio_idc == 255) {
120 ✗ ub(16, sar_width);
121 ✗ ub(16, sar_height);
122 }
123 } else {
124
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 16 infer(aspect_ratio_idc, 0);
125 }
126
127
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 72 flag(overscan_info_present_flag);
128
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 72 if (current->overscan_info_present_flag)
129
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 8 flag(overscan_appropriate_flag);
130
131
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 72 flag(video_signal_type_present_flag);
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 72 if (current->video_signal_type_present_flag) {
133
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 20 ub(3, video_format);
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 20 flag(video_full_range_flag);
135
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 20 flag(colour_description_present_flag);
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 20 if (current->colour_description_present_flag) {
137
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 20 ub(8, colour_primaries);
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 20 ub(8, transfer_characteristics);
139
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 20 ub(8, matrix_coefficients);
140 } else {
141 ✗ infer(colour_primaries, 2);
142 ✗ infer(transfer_characteristics, 2);
143 ✗ infer(matrix_coefficients, 2);
144 }
145 } else {
146
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 52 infer(video_format, 5);
147
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 52 infer(video_full_range_flag, 0);
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 52 infer(colour_primaries, 2);
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 52 infer(transfer_characteristics, 2);
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 52 infer(matrix_coefficients, 2);
151 }
152
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 72 flag(chroma_loc_info_present_flag);
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 72 if (current->chroma_loc_info_present_flag) {
155
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 12 ue(chroma_sample_loc_type_top_field, 0, 5);
156
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 12 ue(chroma_sample_loc_type_bottom_field, 0, 5);
157 } else {
158
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 60 infer(chroma_sample_loc_type_top_field, 0);
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 60 infer(chroma_sample_loc_type_bottom_field, 0);
160 }
161
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 72 flag(timing_info_present_flag);
163
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 72 if (current->timing_info_present_flag) {
164
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 68 u(32, num_units_in_tick, 1, UINT32_MAX);
165
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 68 u(32, time_scale, 1, UINT32_MAX);
166
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 68 flag(fixed_frame_rate_flag);
167 } else {
168
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 4 infer(fixed_frame_rate_flag, 0);
169 }
170
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 72 flag(nal_hrd_parameters_present_flag);
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 72 if (current->nal_hrd_parameters_present_flag)
173
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 36 CHECK(FUNC(hrd_parameters)(ctx, rw, &current->nal_hrd_parameters));
174
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 72 flag(vcl_hrd_parameters_present_flag);
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 72 if (current->vcl_hrd_parameters_present_flag)
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 8 CHECK(FUNC(hrd_parameters)(ctx, rw, &current->vcl_hrd_parameters));
178
179
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 72 if (current->nal_hrd_parameters_present_flag ||
180
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 36 current->vcl_hrd_parameters_present_flag)
181
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 36 flag(low_delay_hrd_flag);
182 else
183
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 36 infer(low_delay_hrd_flag, 1 - current->fixed_frame_rate_flag);
184
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 72 flag(pic_struct_present_flag);
186
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 72 flag(bitstream_restriction_flag);
188
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 72 if (current->bitstream_restriction_flag) {
189
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 60 flag(motion_vectors_over_pic_boundaries_flag);
190
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 60 ue(max_bytes_per_pic_denom, 0, 16);
191
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 60 ue(max_bits_per_mb_denom, 0, 16);
192 // The current version of the standard constrains this to be in
193 // [0,15], but older versions allow 16.
194
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 60 ue(log2_max_mv_length_horizontal, 0, 16);
195
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 60 ue(log2_max_mv_length_vertical, 0, 16);
196
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 60 ue(max_num_reorder_frames, 0, H264_MAX_DPB_FRAMES);
197
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 60 ue(max_dec_frame_buffering, 0, H264_MAX_DPB_FRAMES);
198 } else {
199
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 12 infer(motion_vectors_over_pic_boundaries_flag, 1);
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 12 infer(max_bytes_per_pic_denom, 2);
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 12 infer(max_bits_per_mb_denom, 1);
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 12 infer(log2_max_mv_length_horizontal, 15);
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 12 infer(log2_max_mv_length_vertical, 15);
204
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 12 if ((sps->profile_idc == 44 || sps->profile_idc == 86 ||
206
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 12 sps->profile_idc == 100 || sps->profile_idc == 110 ||
207
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 4 sps->profile_idc == 122 || sps->profile_idc == 244) &&
208
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 8 sps->constraint_set3_flag) {
209 ✗ infer(max_num_reorder_frames, 0);
210 ✗ infer(max_dec_frame_buffering, 0);
211 } else {
212
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 12 infer(max_num_reorder_frames, H264_MAX_DPB_FRAMES);
213
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 12 infer(max_dec_frame_buffering, H264_MAX_DPB_FRAMES);
214 }
215 }
216
217 72 return 0;
218 }
219
220 232 static int FUNC(vui_parameters_default)(CodedBitstreamContext *ctx,
221 RWContext *rw, H264RawVUI *current,
222 H264RawSPS *sps)
223 {
224
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 232 infer(aspect_ratio_idc, 0);
225
226
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 232 infer(video_format, 5);
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 232 infer(video_full_range_flag, 0);
228
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 232 infer(colour_primaries, 2);
229
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 232 infer(transfer_characteristics, 2);
230
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 232 infer(matrix_coefficients, 2);
231
232
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 232 infer(chroma_sample_loc_type_top_field, 0);
233
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 232 infer(chroma_sample_loc_type_bottom_field, 0);
234
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 232 infer(fixed_frame_rate_flag, 0);
236
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 232 infer(low_delay_hrd_flag, 1);
237
238
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 232 infer(pic_struct_present_flag, 0);
239
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 232 infer(motion_vectors_over_pic_boundaries_flag, 1);
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 232 infer(max_bytes_per_pic_denom, 2);
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 232 infer(max_bits_per_mb_denom, 1);
243
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 232 infer(log2_max_mv_length_horizontal, 15);
244
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 232 infer(log2_max_mv_length_vertical, 15);
245
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 232 if ((sps->profile_idc == 44 || sps->profile_idc == 86 ||
247
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 232 sps->profile_idc == 100 || sps->profile_idc == 110 ||
248
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 232 sps->profile_idc == 122 || sps->profile_idc == 244) &&
249 ✗ sps->constraint_set3_flag) {
250 ✗ infer(max_num_reorder_frames, 0);
251 ✗ infer(max_dec_frame_buffering, 0);
252 } else {
253
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 232 infer(max_num_reorder_frames, H264_MAX_DPB_FRAMES);
254
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 232 infer(max_dec_frame_buffering, H264_MAX_DPB_FRAMES);
255 }
256
257 232 return 0;
258 }
259
260 304 static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
261 H264RawSPS *current)
262 {
263 int err, i;
264
265 304 HEADER("Sequence Parameter Set");
266
267
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 304 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
268 1 << H264_NAL_SPS));
269
270
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 304 ub(8, profile_idc);
271
272
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 304 flag(constraint_set0_flag);
273
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 304 flag(constraint_set1_flag);
274
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 304 flag(constraint_set2_flag);
275
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 304 flag(constraint_set3_flag);
276
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 304 flag(constraint_set4_flag);
277
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 304 flag(constraint_set5_flag);
278
279
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 304 u(2, reserved_zero_2bits, 0, 0);
280
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 304 ub(8, level_idc);
282
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 304 ue(seq_parameter_set_id, 0, 31);
284
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 304 if (current->profile_idc == 100 || current->profile_idc == 110 ||
286
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 276 current->profile_idc == 122 || current->profile_idc == 244 ||
287
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 276 current->profile_idc == 44 || current->profile_idc == 83 ||
288
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 276 current->profile_idc == 86 || current->profile_idc == 118 ||
289
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 276 current->profile_idc == 128 || current->profile_idc == 138) {
290
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 28 ue(chroma_format_idc, 0, 3);
291
292
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 28 if (current->chroma_format_idc == 3)
293 ✗ flag(separate_colour_plane_flag);
294 else
295
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 28 infer(separate_colour_plane_flag, 0);
296
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 28 ue(bit_depth_luma_minus8, 0, 6);
298
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 28 ue(bit_depth_chroma_minus8, 0, 6);
299
300
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 28 flag(qpprime_y_zero_transform_bypass_flag);
301
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 28 flag(seq_scaling_matrix_present_flag);
303
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 28 if (current->seq_scaling_matrix_present_flag) {
304 ✗ for (i = 0; i < ((current->chroma_format_idc != 3) ? 8 : 12); i++) {
305 ✗ flags(seq_scaling_list_present_flag[i], 1, i);
306 ✗ if (current->seq_scaling_list_present_flag[i]) {
307 ✗ if (i < 6)
308 ✗ CHECK(FUNC(scaling_list)(ctx, rw,
309 &current->scaling_list_4x4[i],
310 16));
311 else
312 ✗ CHECK(FUNC(scaling_list)(ctx, rw,
313 &current->scaling_list_8x8[i - 6],
314 64));
315 }
316 }
317 }
318 } else {
319
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 276 infer(chroma_format_idc, current->profile_idc == 183 ? 0 : 1);
320
321
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 276 infer(separate_colour_plane_flag, 0);
322
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 276 infer(bit_depth_luma_minus8, 0);
323
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 276 infer(bit_depth_chroma_minus8, 0);
324 }
325
326
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 304 ue(log2_max_frame_num_minus4, 0, 12);
327
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 304 ue(pic_order_cnt_type, 0, 2);
328
329
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 304 if (current->pic_order_cnt_type == 0) {
330
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 144 ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12);
331
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 160 } else if (current->pic_order_cnt_type == 1) {
332
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 32 flag(delta_pic_order_always_zero_flag);
333
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 32 se(offset_for_non_ref_pic, INT32_MIN + 1, INT32_MAX);
334
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 32 se(offset_for_top_to_bottom_field, INT32_MIN + 1, INT32_MAX);
335
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 32 ue(num_ref_frames_in_pic_order_cnt_cycle, 0, 255);
336
337
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 64 for (i = 0; i < current->num_ref_frames_in_pic_order_cnt_cycle; i++)
338
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 32 ses(offset_for_ref_frame[i], INT32_MIN + 1, INT32_MAX, 1, i);
339 }
340
341
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 304 ue(max_num_ref_frames, 0, H264_MAX_DPB_FRAMES);
342
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 304 flag(gaps_in_frame_num_allowed_flag);
343
344
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 304 ue(pic_width_in_mbs_minus1, 0, H264_MAX_MB_WIDTH);
345
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 304 ue(pic_height_in_map_units_minus1, 0, H264_MAX_MB_HEIGHT);
346
347
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 304 flag(frame_mbs_only_flag);
348
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 304 if (!current->frame_mbs_only_flag)
349
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 72 flag(mb_adaptive_frame_field_flag);
350
351
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 304 flag(direct_8x8_inference_flag);
352
353
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 304 flag(frame_cropping_flag);
354
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 304 if (current->frame_cropping_flag) {
355
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 44 ue(frame_crop_left_offset, 0, H264_MAX_WIDTH);
356
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 44 ue(frame_crop_right_offset, 0, H264_MAX_WIDTH);
357
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 44 ue(frame_crop_top_offset, 0, H264_MAX_HEIGHT);
358
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 44 ue(frame_crop_bottom_offset, 0, H264_MAX_HEIGHT);
359 }
360
361
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 304 flag(vui_parameters_present_flag);
362
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 304 if (current->vui_parameters_present_flag)
363
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 72 CHECK(FUNC(vui_parameters)(ctx, rw, &current->vui, current));
364 else
365
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 232 CHECK(FUNC(vui_parameters_default)(ctx, rw, &current->vui, current));
366
367
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 304 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
368
369 304 return 0;
370 }
371
372 ✗ static int FUNC(sps_extension)(CodedBitstreamContext *ctx, RWContext *rw,
373 H264RawSPSExtension *current)
374 {
375 int err;
376
377 ✗ HEADER("Sequence Parameter Set Extension");
378
379 ✗ CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
380 1 << H264_NAL_SPS_EXT));
381
382 ✗ ue(seq_parameter_set_id, 0, 31);
383
384 ✗ ue(aux_format_idc, 0, 3);
385
386 ✗ if (current->aux_format_idc != 0) {
387 int bits;
388
389 ✗ ue(bit_depth_aux_minus8, 0, 4);
390 ✗ flag(alpha_incr_flag);
391
392 ✗ bits = current->bit_depth_aux_minus8 + 9;
393 ✗ ub(bits, alpha_opaque_value);
394 ✗ ub(bits, alpha_transparent_value);
395 }
396
397 ✗ flag(additional_extension_flag);
398
399 ✗ CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
400
401 ✗ return 0;
402 }
403
404 5992 static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw,
405 H264RawPPS *current)
406 {
407 5992 CodedBitstreamH264Context *h264 = ctx->priv_data;
408 const H264RawSPS *sps;
409 int err, i;
410
411 5992 HEADER("Picture Parameter Set");
412
413
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 5992 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
414 1 << H264_NAL_PPS));
415
416
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 5992 ue(pic_parameter_set_id, 0, 255);
417
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 5992 ue(seq_parameter_set_id, 0, 31);
418
419 5992 sps = h264->sps[current->seq_parameter_set_id];
420
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 5992 if (!sps) {
421 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
422 ✗ current->seq_parameter_set_id);
423 ✗ return AVERROR_INVALIDDATA;
424 }
425
426
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 5992 flag(entropy_coding_mode_flag);
427
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 5992 flag(bottom_field_pic_order_in_frame_present_flag);
428
429
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 5992 ue(num_slice_groups_minus1, 0, 7);
430
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 5992 if (current->num_slice_groups_minus1 > 0) {
431 unsigned int pic_size;
432 int iGroup;
433
434 56 pic_size = (sps->pic_width_in_mbs_minus1 + 1) *
435 56 (sps->pic_height_in_map_units_minus1 + 1);
436
437
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 56 ue(slice_group_map_type, 0, 6);
438
439
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 56 if (current->slice_group_map_type == 0) {
440
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 72 for (iGroup = 0; iGroup <= current->num_slice_groups_minus1; iGroup++)
441
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 64 ues(run_length_minus1[iGroup], 0, pic_size - 1, 1, iGroup);
442
443
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 48 } else if (current->slice_group_map_type == 2) {
444
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 24 for (iGroup = 0; iGroup < current->num_slice_groups_minus1; iGroup++) {
445
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 16 ues(top_left[iGroup], 0, pic_size - 1, 1, iGroup);
446
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 16 ues(bottom_right[iGroup],
447 current->top_left[iGroup], pic_size - 1, 1, iGroup);
448 }
449
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 40 } else if (current->slice_group_map_type == 3 ||
450
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 32 current->slice_group_map_type == 4 ||
451
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 24 current->slice_group_map_type == 5) {
452
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 24 flag(slice_group_change_direction_flag);
453
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 24 ue(slice_group_change_rate_minus1, 0, pic_size - 1);
454
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 16 } else if (current->slice_group_map_type == 6) {
455
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 8 ue(pic_size_in_map_units_minus1, pic_size - 1, pic_size - 1);
456
457
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 8 allocate(current->slice_group_id,
458 current->pic_size_in_map_units_minus1 + 1);
459
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 800 for (i = 0; i <= current->pic_size_in_map_units_minus1; i++)
460
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 792 us(av_log2(2 * current->num_slice_groups_minus1 + 1),
461 slice_group_id[i], 0, current->num_slice_groups_minus1, 1, i);
462 }
463 }
464
465
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 5992 ue(num_ref_idx_l0_default_active_minus1, 0, 31);
466
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 5992 ue(num_ref_idx_l1_default_active_minus1, 0, 31);
467
468
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 5992 flag(weighted_pred_flag);
469
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 5992 u(2, weighted_bipred_idc, 0, 2);
470
471
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 5992 se(pic_init_qp_minus26, -26 - 6 * sps->bit_depth_luma_minus8, +25);
472
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 5992 se(pic_init_qs_minus26, -26, +25);
473
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 5992 se(chroma_qp_index_offset, -12, +12);
474
475
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 5992 flag(deblocking_filter_control_present_flag);
476
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 5992 flag(constrained_intra_pred_flag);
477
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 5992 flag(redundant_pic_cnt_present_flag);
478
479
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 5992 if (more_rbsp_data(current->more_rbsp_data))
480 {
481
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 28 flag(transform_8x8_mode_flag);
482
483
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 28 flag(pic_scaling_matrix_present_flag);
484
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 28 if (current->pic_scaling_matrix_present_flag) {
485 ✗ for (i = 0; i < 6 + (((sps->chroma_format_idc != 3) ? 2 : 6) *
486 ✗ current->transform_8x8_mode_flag); i++) {
487 ✗ flags(pic_scaling_list_present_flag[i], 1, i);
488 ✗ if (current->pic_scaling_list_present_flag[i]) {
489 ✗ if (i < 6)
490 ✗ CHECK(FUNC(scaling_list)(ctx, rw,
491 &current->scaling_list_4x4[i],
492 16));
493 else
494 ✗ CHECK(FUNC(scaling_list)(ctx, rw,
495 &current->scaling_list_8x8[i - 6],
496 64));
497 }
498 }
499 }
500
501
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 28 se(second_chroma_qp_index_offset, -12, +12);
502 } else {
503
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 5964 infer(transform_8x8_mode_flag, 0);
504
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 5964 infer(pic_scaling_matrix_present_flag, 0);
505
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 5964 infer(second_chroma_qp_index_offset, current->chroma_qp_index_offset);
506 }
507
508
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 5992 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
509
510 5992 return 0;
511 }
512
513 284 SEI_FUNC(sei_buffering_period, (CodedBitstreamContext *ctx, RWContext *rw,
514 H264RawSEIBufferingPeriod *current,
515 SEIMessageState *sei))
516 {
517 142 CodedBitstreamH264Context *h264 = ctx->priv_data;
518 const H264RawSPS *sps;
519 int err, i, length;
520
521 142 HEADER("Buffering Period");
522
523
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 142 ue(seq_parameter_set_id, 0, 31);
524
525 142 sps = h264->sps[current->seq_parameter_set_id];
526
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 142 if (!sps) {
527 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
528 ✗ current->seq_parameter_set_id);
529 ✗ return AVERROR_INVALIDDATA;
530 }
531 142 h264->active_sps = sps;
532
533
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 142 if (sps->vui.nal_hrd_parameters_present_flag) {
534
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 272 for (i = 0; i <= sps->vui.nal_hrd_parameters.cpb_cnt_minus1; i++) {
535 136 length = sps->vui.nal_hrd_parameters.initial_cpb_removal_delay_length_minus1 + 1;
536
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 136 xu(length, initial_cpb_removal_delay[SchedSelIdx],
537 current->nal.initial_cpb_removal_delay[i],
538 1, MAX_UINT_BITS(length), 1, i);
539
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 136 xu(length, initial_cpb_removal_delay_offset[SchedSelIdx],
540 current->nal.initial_cpb_removal_delay_offset[i],
541 0, MAX_UINT_BITS(length), 1, i);
542 }
543 }
544
545
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 142 if (sps->vui.vcl_hrd_parameters_present_flag) {
546
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 12 for (i = 0; i <= sps->vui.vcl_hrd_parameters.cpb_cnt_minus1; i++) {
547 6 length = sps->vui.vcl_hrd_parameters.initial_cpb_removal_delay_length_minus1 + 1;
548
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 6 xu(length, initial_cpb_removal_delay[SchedSelIdx],
549 current->vcl.initial_cpb_removal_delay[i],
550 1, MAX_UINT_BITS(length), 1, i);
551
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 6 xu(length, initial_cpb_removal_delay_offset[SchedSelIdx],
552 current->vcl.initial_cpb_removal_delay_offset[i],
553 0, MAX_UINT_BITS(length), 1, i);
554 }
555 }
556
557 142 return 0;
558 }
559
560 ✗ static int FUNC(sei_pic_timestamp)(CodedBitstreamContext *ctx, RWContext *rw,
561 H264RawSEIPicTimestamp *current,
562 const H264RawSPS *sps)
563 {
564 uint8_t time_offset_length;
565 int err;
566
567 ✗ u(2, ct_type, 0, 2);
568 ✗ flag(nuit_field_based_flag);
569 ✗ u(5, counting_type, 0, 6);
570 ✗ flag(full_timestamp_flag);
571 ✗ flag(discontinuity_flag);
572 ✗ flag(cnt_dropped_flag);
573 ✗ ub(8, n_frames);
574 ✗ if (current->full_timestamp_flag) {
575 ✗ u(6, seconds_value, 0, 59);
576 ✗ u(6, minutes_value, 0, 59);
577 ✗ u(5, hours_value, 0, 23);
578 } else {
579 ✗ flag(seconds_flag);
580 ✗ if (current->seconds_flag) {
581 ✗ u(6, seconds_value, 0, 59);
582 ✗ flag(minutes_flag);
583 ✗ if (current->minutes_flag) {
584 ✗ u(6, minutes_value, 0, 59);
585 ✗ flag(hours_flag);
586 ✗ if (current->hours_flag)
587 ✗ u(5, hours_value, 0, 23);
588 }
589 }
590 }
591
592 ✗ if (sps->vui.nal_hrd_parameters_present_flag)
593 ✗ time_offset_length = sps->vui.nal_hrd_parameters.time_offset_length;
594 ✗ else if (sps->vui.vcl_hrd_parameters_present_flag)
595 ✗ time_offset_length = sps->vui.vcl_hrd_parameters.time_offset_length;
596 else
597 ✗ time_offset_length = 24;
598
599 ✗ if (time_offset_length > 0)
600 ✗ ib(time_offset_length, time_offset);
601 else
602 ✗ infer(time_offset, 0);
603
604 ✗ return 0;
605 }
606
607 6740 SEI_FUNC(sei_pic_timing, (CodedBitstreamContext *ctx, RWContext *rw,
608 H264RawSEIPicTiming *current, SEIMessageState *sei))
609 {
610 3370 CodedBitstreamH264Context *h264 = ctx->priv_data;
611 const H264RawSPS *sps;
612 int err;
613
614 3370 HEADER("Picture Timing");
615
616 3370 sps = h264->active_sps;
617
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 3370 if (!sps) {
618 // If there is exactly one possible SPS but it is not yet active
619 // then just assume that it should be the active one.
620 ✗ int i, k = -1;
621 ✗ for (i = 0; i < H264_MAX_SPS_COUNT; i++) {
622 ✗ if (h264->sps[i]) {
623 ✗ if (k >= 0) {
624 ✗ k = -1;
625 ✗ break;
626 }
627 ✗ k = i;
628 }
629 }
630 ✗ if (k >= 0)
631 ✗ sps = h264->sps[k];
632 }
633
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 3370 if (!sps) {
634 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
635 "No active SPS for pic_timing.\n");
636 ✗ return AVERROR_INVALIDDATA;
637 }
638
639
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 3370 if (sps->vui.nal_hrd_parameters_present_flag ||
640
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 236 sps->vui.vcl_hrd_parameters_present_flag) {
641 const H264RawHRD *hrd;
642
643
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 3134 if (sps->vui.nal_hrd_parameters_present_flag)
644 3134 hrd = &sps->vui.nal_hrd_parameters;
645 ✗ else if (sps->vui.vcl_hrd_parameters_present_flag)
646 ✗ hrd = &sps->vui.vcl_hrd_parameters;
647 else {
648 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
649 "No HRD parameters for pic_timing.\n");
650 ✗ return AVERROR_INVALIDDATA;
651 }
652
653
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 3134 ub(hrd->cpb_removal_delay_length_minus1 + 1, cpb_removal_delay);
654
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 3134 ub(hrd->dpb_output_delay_length_minus1 + 1, dpb_output_delay);
655 }
656
657
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 3370 if (sps->vui.pic_struct_present_flag) {
658 static const uint8_t num_clock_ts[9] = {
659 1, 1, 1, 2, 2, 3, 3, 2, 3
660 };
661 int i;
662
663
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 3340 u(4, pic_struct, 0, 8);
664
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 3340 if (current->pic_struct > 8)
665 ✗ return AVERROR_INVALIDDATA;
666
667
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 10612 for (i = 0; i < num_clock_ts[current->pic_struct]; i++) {
668
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 7272 flags(clock_timestamp_flag[i], 1, i);
669
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 7272 if (current->clock_timestamp_flag[i])
670 ✗ CHECK(FUNC(sei_pic_timestamp)(ctx, rw,
671 &current->timestamp[i], sps));
672 }
673 }
674
675 3370 return 0;
676 }
677
678 60 SEI_FUNC(sei_pan_scan_rect, (CodedBitstreamContext *ctx, RWContext *rw,
679 H264RawSEIPanScanRect *current,
680 SEIMessageState *sei))
681 {
682 int err, i;
683
684 30 HEADER("Pan-Scan Rectangle");
685
686
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 30 ue(pan_scan_rect_id, 0, UINT32_MAX - 1);
687
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 30 flag(pan_scan_rect_cancel_flag);
688
689
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 30 if (!current->pan_scan_rect_cancel_flag) {
690
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 30 ue(pan_scan_cnt_minus1, 0, 2);
691
692
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 60 for (i = 0; i <= current->pan_scan_cnt_minus1; i++) {
693
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 30 ses(pan_scan_rect_left_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
694
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 30 ses(pan_scan_rect_right_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
695
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 30 ses(pan_scan_rect_top_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
696
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 30 ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
697 }
698
699
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 30 ue(pan_scan_rect_repetition_period, 0, 16384);
700 }
701
702 30 return 0;
703 }
704
705 224 SEI_FUNC(sei_recovery_point, (CodedBitstreamContext *ctx, RWContext *rw,
706 H264RawSEIRecoveryPoint *current,
707 SEIMessageState *sei))
708 {
709 int err;
710
711 112 HEADER("Recovery Point");
712
713
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 112 ue(recovery_frame_cnt, 0, 65535);
714
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 112 flag(exact_match_flag);
715
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 112 flag(broken_link_flag);
716
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 112 u(2, changing_slice_group_idc, 0, 2);
717
718 112 return 0;
719 }
720
721 ✗ SEI_FUNC(film_grain_characteristics, (CodedBitstreamContext *ctx, RWContext *rw,
722 H264RawFilmGrainCharacteristics *current,
723 SEIMessageState *state))
724 {
725 ✗ CodedBitstreamH264Context *h264 = ctx->priv_data;
726 const H264RawSPS *sps;
727 int err, c, i, j;
728
729 ✗ HEADER("Film Grain Characteristics");
730
731 ✗ sps = h264->active_sps;
732 ✗ if (!sps) {
733 // If there is exactly one possible SPS but it is not yet active
734 // then just assume that it should be the active one.
735 ✗ int i, k = -1;
736 ✗ for (i = 0; i < H264_MAX_SPS_COUNT; i++) {
737 ✗ if (h264->sps[i]) {
738 ✗ if (k >= 0) {
739 ✗ k = -1;
740 ✗ break;
741 }
742 ✗ k = i;
743 }
744 }
745 ✗ if (k >= 0)
746 ✗ sps = h264->sps[k];
747 }
748
749 ✗ flag(film_grain_characteristics_cancel_flag);
750 ✗ if (!current->film_grain_characteristics_cancel_flag) {
751 int filmGrainBitDepth[3];
752
753 ✗ u(2, film_grain_model_id, 0, 1);
754 ✗ flag(separate_colour_description_present_flag);
755 ✗ if (current->separate_colour_description_present_flag) {
756 ✗ ub(3, film_grain_bit_depth_luma_minus8);
757 ✗ ub(3, film_grain_bit_depth_chroma_minus8);
758 ✗ flag(film_grain_full_range_flag);
759 ✗ ub(8, film_grain_colour_primaries);
760 ✗ ub(8, film_grain_transfer_characteristics);
761 ✗ ub(8, film_grain_matrix_coefficients);
762 } else {
763 ✗ if (!sps) {
764 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
765 "No active SPS for film_grain_characteristics.\n");
766 ✗ return AVERROR_INVALIDDATA;
767 }
768 ✗ infer(film_grain_bit_depth_luma_minus8, sps->bit_depth_luma_minus8);
769 ✗ infer(film_grain_bit_depth_chroma_minus8, sps->bit_depth_chroma_minus8);
770 ✗ infer(film_grain_full_range_flag, sps->vui.video_full_range_flag);
771 ✗ infer(film_grain_colour_primaries, sps->vui.colour_primaries);
772 ✗ infer(film_grain_transfer_characteristics, sps->vui.transfer_characteristics);
773 ✗ infer(film_grain_matrix_coefficients, sps->vui.matrix_coefficients);
774 }
775
776 ✗ filmGrainBitDepth[0] = current->film_grain_bit_depth_luma_minus8 + 8;
777 ✗ filmGrainBitDepth[1] =
778 ✗ filmGrainBitDepth[2] = current->film_grain_bit_depth_chroma_minus8 + 8;
779
780 ✗ u(2, blending_mode_id, 0, 1);
781 ✗ ub(4, log2_scale_factor);
782 ✗ for (c = 0; c < 3; c++)
783 ✗ flags(comp_model_present_flag[c], 1, c);
784 ✗ for (c = 0; c < 3; c++) {
785 ✗ if (current->comp_model_present_flag[c]) {
786 ✗ ubs(8, num_intensity_intervals_minus1[c], 1, c);
787 ✗ us(3, num_model_values_minus1[c], 0, 5, 1, c);
788 ✗ for (i = 0; i <= current->num_intensity_intervals_minus1[c]; i++) {
789 ✗ ubs(8, intensity_interval_lower_bound[c][i], 2, c, i);
790 ✗ ubs(8, intensity_interval_upper_bound[c][i], 2, c, i);
791 ✗ for (j = 0; j <= current->num_model_values_minus1[c]; j++)
792 ✗ ses(comp_model_value[c][i][j], 0 - current->film_grain_model_id * (1 << (filmGrainBitDepth[c] - 1)),
793 ((1 << filmGrainBitDepth[c]) - 1) - current->film_grain_model_id * (1 << (filmGrainBitDepth[c] - 1)),
794 3, c, i, j);
795 }
796 }
797 }
798 ✗ ue(film_grain_characteristics_repetition_period, 0, 16384);
799 }
800
801 ✗ return 0;
802 }
803
804 ✗ SEI_FUNC(sei_frame_packing_arrangement, (CodedBitstreamContext *ctx, RWContext *rw,
805 H264RawSEIFramePackingArrangement *current,
806 SEIMessageState *sei))
807 {
808 int err;
809
810 ✗ HEADER("Frame Packing Arrangement");
811
812 ✗ ue(frame_packing_arrangement_id, 0, MAX_UINT_BITS(31));
813 ✗ flag(frame_packing_arrangement_cancel_flag);
814 ✗ if (!current->frame_packing_arrangement_cancel_flag) {
815 ✗ u(7, frame_packing_arrangement_type, 0, 7);
816 ✗ flag(quincunx_sampling_flag);
817 ✗ u(6, content_interpretation_type, 0, 2);
818 ✗ flag(spatial_flipping_flag);
819 ✗ flag(frame0_flipped_flag);
820 ✗ flag(field_views_flag);
821 ✗ flag(current_frame_is_frame0_flag);
822 ✗ flag(frame0_self_contained_flag);
823 ✗ flag(frame1_self_contained_flag);
824 ✗ if (!current->quincunx_sampling_flag && current->frame_packing_arrangement_type != 5) {
825 ✗ ub(4, frame0_grid_position_x);
826 ✗ ub(4, frame0_grid_position_y);
827 ✗ ub(4, frame1_grid_position_x);
828 ✗ ub(4, frame1_grid_position_y);
829 }
830 ✗ fixed(8, frame_packing_arrangement_reserved_byte, 0);
831 ✗ ue(frame_packing_arrangement_repetition_period, 0, 16384);
832 }
833 ✗ flag(frame_packing_arrangement_extension_flag);
834
835 ✗ return 0;
836 }
837
838 12 SEI_FUNC(sei_display_orientation, (CodedBitstreamContext *ctx, RWContext *rw,
839 H264RawSEIDisplayOrientation *current,
840 SEIMessageState *sei))
841 {
842 int err;
843
844 6 HEADER("Display Orientation");
845
846
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 6 flag(display_orientation_cancel_flag);
847
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 6 if (!current->display_orientation_cancel_flag) {
848
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 6 flag(hor_flip);
849
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 6 flag(ver_flip);
850
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 6 ub(16, anticlockwise_rotation);
851
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 6 ue(display_orientation_repetition_period, 0, 16384);
852
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 6 flag(display_orientation_extension_flag);
853 }
854
855 6 return 0;
856 }
857
858 2844 static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
859 H264RawSEI *current)
860 {
861 int err;
862
863 2844 HEADER("Supplemental Enhancement Information");
864
865
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 2844 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
866 1 << H264_NAL_SEI));
867
868
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 2844 CHECK(FUNC_SEI(message_list)(ctx, rw, &current->message_list, 1));
869
870
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 2844 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
871
872 2844 return 0;
873 }
874
875 2082 static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw,
876 H264RawAUD *current)
877 {
878 int err;
879
880 2082 HEADER("Access Unit Delimiter");
881
882
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 2082 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
883 1 << H264_NAL_AUD));
884
885
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 2082 ub(3, primary_pic_type);
886
887
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 2082 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
888
889 2082 return 0;
890 }
891
892 23270 static int FUNC(ref_pic_list_modification)(CodedBitstreamContext *ctx, RWContext *rw,
893 H264RawSliceHeader *current)
894 {
895 23270 CodedBitstreamH264Context *h264 = ctx->priv_data;
896 23270 const H264RawSPS *sps = h264->active_sps;
897 int err, i, mopn;
898
899
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 23270 if (current->slice_type % 5 != 2 &&
900
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 21874 current->slice_type % 5 != 4) {
901
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 21874 flag(ref_pic_list_modification_flag_l0);
902
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 21874 if (current->ref_pic_list_modification_flag_l0) {
903
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 7432 for (i = 0; i < H264_MAX_RPLM_COUNT; i++) {
904
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 7432 xue(modification_of_pic_nums_idc,
905 current->rplm_l0[i].modification_of_pic_nums_idc, 0, 3, 0);
906
907 7432 mopn = current->rplm_l0[i].modification_of_pic_nums_idc;
908
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 7432 if (mopn == 3)
909 2280 break;
910
911
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✓ Branch 3 taken 14 times.
 5152 if (mopn == 0 || mopn == 1)
912
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 5124 xue(abs_diff_pic_num_minus1,
913 current->rplm_l0[i].abs_diff_pic_num_minus1,
914 0, (1 + current->field_pic_flag) *
915 (1 << (sps->log2_max_frame_num_minus4 + 4)), 0);
916
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 28 else if (mopn == 2)
917
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 28 xue(long_term_pic_num,
918 current->rplm_l0[i].long_term_pic_num,
919 0, sps->max_num_ref_frames - 1, 0);
920 }
921 }
922 }
923
924
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 23270 if (current->slice_type % 5 == 1) {
925
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 5440 flag(ref_pic_list_modification_flag_l1);
926
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 5440 if (current->ref_pic_list_modification_flag_l1) {
927 ✗ for (i = 0; i < H264_MAX_RPLM_COUNT; i++) {
928 ✗ xue(modification_of_pic_nums_idc,
929 current->rplm_l1[i].modification_of_pic_nums_idc, 0, 3, 0);
930
931 ✗ mopn = current->rplm_l1[i].modification_of_pic_nums_idc;
932 ✗ if (mopn == 3)
933 ✗ break;
934
935 ✗ if (mopn == 0 || mopn == 1)
936 ✗ xue(abs_diff_pic_num_minus1,
937 current->rplm_l1[i].abs_diff_pic_num_minus1,
938 0, (1 + current->field_pic_flag) *
939 (1 << (sps->log2_max_frame_num_minus4 + 4)), 0);
940 ✗ else if (mopn == 2)
941 ✗ xue(long_term_pic_num,
942 current->rplm_l1[i].long_term_pic_num,
943 0, sps->max_num_ref_frames - 1, 0);
944 }
945 }
946 }
947
948 23270 return 0;
949 }
950
951 1220 static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
952 H264RawSliceHeader *current)
953 {
954 1220 CodedBitstreamH264Context *h264 = ctx->priv_data;
955 1220 const H264RawSPS *sps = h264->active_sps;
956 int chroma;
957 int err, i, j;
958
959
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 1220 ue(luma_log2_weight_denom, 0, 7);
960
961
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 1220 chroma = !sps->separate_colour_plane_flag && sps->chroma_format_idc != 0;
962
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 1220 if (chroma)
963
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 1220 ue(chroma_log2_weight_denom, 0, 7);
964
965
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 5964 for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
966
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 4744 flags(luma_weight_l0_flag[i], 1, i);
967
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 4744 if (current->luma_weight_l0_flag[i]) {
968
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 872 ses(luma_weight_l0[i], -128, +127, 1, i);
969
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 872 ses(luma_offset_l0[i], -128, +127, 1, i);
970 }
971
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 4744 if (chroma) {
972
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 4744 flags(chroma_weight_l0_flag[i], 1, i);
973
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 4744 if (current->chroma_weight_l0_flag[i]) {
974
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 2496 for (j = 0; j < 2; j++) {
975
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 1664 ses(chroma_weight_l0[i][j], -128, +127, 2, i, j);
976
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 1664 ses(chroma_offset_l0[i][j], -128, +127, 2, i, j);
977 }
978 }
979 }
980 }
981
982
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 1220 if (current->slice_type % 5 == 1) {
983 ✗ for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
984 ✗ flags(luma_weight_l1_flag[i], 1, i);
985 ✗ if (current->luma_weight_l1_flag[i]) {
986 ✗ ses(luma_weight_l1[i], -128, +127, 1, i);
987 ✗ ses(luma_offset_l1[i], -128, +127, 1, i);
988 }
989 ✗ if (chroma) {
990 ✗ flags(chroma_weight_l1_flag[i], 1, i);
991 ✗ if (current->chroma_weight_l1_flag[i]) {
992 ✗ for (j = 0; j < 2; j++) {
993 ✗ ses(chroma_weight_l1[i][j], -128, +127, 2, i, j);
994 ✗ ses(chroma_offset_l1[i][j], -128, +127, 2, i, j);
995 }
996 }
997 }
998 }
999 }
1000
1001 1220 return 0;
1002 }
1003
1004 18130 static int FUNC(dec_ref_pic_marking)(CodedBitstreamContext *ctx, RWContext *rw,
1005 H264RawSliceHeader *current, int idr_pic_flag)
1006 {
1007 18130 CodedBitstreamH264Context *h264 = ctx->priv_data;
1008 18130 const H264RawSPS *sps = h264->active_sps;
1009 int err, i;
1010 uint32_t mmco;
1011
1012
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 18130 if (idr_pic_flag) {
1013
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 342 flag(no_output_of_prior_pics_flag);
1014
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 342 flag(long_term_reference_flag);
1015 } else {
1016
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 17788 flag(adaptive_ref_pic_marking_mode_flag);
1017
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 17788 if (current->adaptive_ref_pic_marking_mode_flag) {
1018
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 2712 for (i = 0; i < H264_MAX_MMCO_COUNT; i++) {
1019
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 2712 xue(memory_management_control_operation,
1020 current->mmco[i].memory_management_control_operation,
1021 0, 6, 0);
1022
1023 2712 mmco = current->mmco[i].memory_management_control_operation;
1024
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 2712 if (mmco == 0)
1025 1174 break;
1026
1027
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✓ Branch 3 taken 82 times.
 1538 if (mmco == 1 || mmco == 3)
1028
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 1374 xue(difference_of_pic_nums_minus1,
1029 current->mmco[i].difference_of_pic_nums_minus1,
1030 0, INT32_MAX, 0);
1031
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 1538 if (mmco == 2)
1032 ✗ xue(long_term_pic_num,
1033 current->mmco[i].long_term_pic_num,
1034 0, sps->max_num_ref_frames - 1, 0);
1035
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 1538 if (mmco == 3 || mmco == 6)
1036
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 112 xue(long_term_frame_idx,
1037 current->mmco[i].long_term_frame_idx,
1038 0, sps->max_num_ref_frames - 1, 0);
1039
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 1538 if (mmco == 4)
1040
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 8 xue(max_long_term_frame_idx_plus1,
1041 current->mmco[i].max_long_term_frame_idx_plus1,
1042 0, sps->max_num_ref_frames, 0);
1043 }
1044
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 1174 if (i == H264_MAX_MMCO_COUNT) {
1045 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many "
1046 "memory management control operations.\n");
1047 ✗ return AVERROR_INVALIDDATA;
1048 }
1049 }
1050 }
1051
1052 18130 return 0;
1053 }
1054
1055 23270 static int FUNC(slice_header)(CodedBitstreamContext *ctx, RWContext *rw,
1056 H264RawSliceHeader *current)
1057 {
1058 23270 CodedBitstreamH264Context *h264 = ctx->priv_data;
1059 const H264RawSPS *sps;
1060 const H264RawPPS *pps;
1061 int err;
1062 int idr_pic_flag;
1063 int slice_type_i, slice_type_p, slice_type_b;
1064 int slice_type_si, slice_type_sp;
1065
1066 23270 HEADER("Slice Header");
1067
1068
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 23270 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
1069 1 << H264_NAL_SLICE |
1070 1 << H264_NAL_IDR_SLICE |
1071 1 << H264_NAL_AUXILIARY_SLICE));
1072
1073
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 23270 if (current->nal_unit_header.nal_unit_type == H264_NAL_AUXILIARY_SLICE) {
1074 ✗ if (!h264->last_slice_nal_unit_type) {
1075 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Auxiliary slice "
1076 "is not decodable without the main picture "
1077 "in the same access unit.\n");
1078 ✗ return AVERROR_INVALIDDATA;
1079 }
1080 ✗ idr_pic_flag = h264->last_slice_nal_unit_type == H264_NAL_IDR_SLICE;
1081 } else {
1082 23270 idr_pic_flag = current->nal_unit_header.nal_unit_type == H264_NAL_IDR_SLICE;
1083 }
1084
1085
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 23270 ue(first_mb_in_slice, 0, H264_MAX_MB_PIC_SIZE - 1);
1086
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 23270 ue(slice_type, 0, 9);
1087
1088 23270 slice_type_i = current->slice_type % 5 == 2;
1089 23270 slice_type_p = current->slice_type % 5 == 0;
1090 23270 slice_type_b = current->slice_type % 5 == 1;
1091 23270 slice_type_si = current->slice_type % 5 == 4;
1092 23270 slice_type_sp = current->slice_type % 5 == 3;
1093
1094
3/6
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✓ Branch 1 taken 11464 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 171 times.
✗ Branch 4 not taken.
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 23270 if (idr_pic_flag && !(slice_type_i || slice_type_si)) {
1095 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid slice type %d "
1096 ✗ "for IDR picture.\n", current->slice_type);
1097 ✗ return AVERROR_INVALIDDATA;
1098 }
1099
1100
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 11635 times.
 23270 ue(pic_parameter_set_id, 0, 255);
1101
1102 23270 pps = h264->pps[current->pic_parameter_set_id];
1103
1/2
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✓ Branch 1 taken 11635 times.
 23270 if (!pps) {
1104 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
1105 ✗ current->pic_parameter_set_id);
1106 ✗ return AVERROR_INVALIDDATA;
1107 }
1108 23270 h264->active_pps = pps;
1109
1110 23270 sps = h264->sps[pps->seq_parameter_set_id];
1111
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11635 times.
 23270 if (!sps) {
1112 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1113 ✗ pps->seq_parameter_set_id);
1114 ✗ return AVERROR_INVALIDDATA;
1115 }
1116 23270 h264->active_sps = sps;
1117
1118
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11635 times.
 23270 if (sps->separate_colour_plane_flag)
1119 ✗ u(2, colour_plane_id, 0, 2);
1120
1121
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 11635 times.
 23270 ub(sps->log2_max_frame_num_minus4 + 4, frame_num);
1122
1123
2/2
✓ Branch 0 taken 1471 times.
✓ Branch 1 taken 10164 times.
 23270 if (!sps->frame_mbs_only_flag) {
1124
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1471 times.
 2942 flag(field_pic_flag);
1125
2/2
✓ Branch 0 taken 645 times.
✓ Branch 1 taken 826 times.
 2942 if (current->field_pic_flag)
1126
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 645 times.
 1290 flag(bottom_field_flag);
1127 else
1128
1/2
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✓ Branch 1 taken 204 times.
 1652 infer(bottom_field_flag, 0);
1129 } else {
1130
1/2
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✓ Branch 1 taken 5082 times.
 20328 infer(field_pic_flag, 0);
1131
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5082 times.
 20328 infer(bottom_field_flag, 0);
1132 }
1133
1134
2/2
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✓ Branch 1 taken 11464 times.
 23270 if (idr_pic_flag)
1135
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 171 times.
 342 ue(idr_pic_id, 0, 65535);
1136
1137
2/2
✓ Branch 0 taken 5975 times.
✓ Branch 1 taken 5660 times.
 23270 if (sps->pic_order_cnt_type == 0) {
1138
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5975 times.
 11950 ub(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, pic_order_cnt_lsb);
1139
2/2
✓ Branch 0 taken 999 times.
✓ Branch 1 taken 4976 times.
 11950 if (pps->bottom_field_pic_order_in_frame_present_flag &&
1140
1/2
✓ Branch 0 taken 999 times.
✗ Branch 1 not taken.
 1998 !current->field_pic_flag)
1141
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 999 times.
 1998 se(delta_pic_order_cnt_bottom, INT32_MIN + 1, INT32_MAX);
1142
1143
2/2
✓ Branch 0 taken 4562 times.
✓ Branch 1 taken 1098 times.
 11320 } else if (sps->pic_order_cnt_type == 1) {
1144
2/2
✓ Branch 0 taken 846 times.
✓ Branch 1 taken 3716 times.
 9124 if (!sps->delta_pic_order_always_zero_flag) {
1145
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 846 times.
 1692 se(delta_pic_order_cnt[0], INT32_MIN + 1, INT32_MAX);
1146
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 846 times.
 1692 if (pps->bottom_field_pic_order_in_frame_present_flag &&
1147 ✗ !current->field_pic_flag)
1148 ✗ se(delta_pic_order_cnt[1], INT32_MIN + 1, INT32_MAX);
1149 else
1150
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 423 times.
 1692 infer(delta_pic_order_cnt[1], 0);
1151 } else {
1152
1/2
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✓ Branch 1 taken 1858 times.
 7432 infer(delta_pic_order_cnt[0], 0);
1153
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1858 times.
 7432 infer(delta_pic_order_cnt[1], 0);
1154 }
1155 }
1156
1157
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11635 times.
 23270 if (pps->redundant_pic_cnt_present_flag)
1158 ✗ ue(redundant_pic_cnt, 0, 127);
1159 else
1160
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5579 times.
 23270 infer(redundant_pic_cnt, 0);
1161
1162
1/2
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✗ Branch 1 not taken.
 23270 if (current->nal_unit_header.nal_unit_type != H264_NAL_AUXILIARY_SLICE
1163
1/2
✓ Branch 0 taken 11635 times.
✗ Branch 1 not taken.
 23270 && !current->redundant_pic_cnt)
1164 23270 h264->last_slice_nal_unit_type =
1165 23270 current->nal_unit_header.nal_unit_type;
1166
1167
2/2
✓ Branch 0 taken 2720 times.
✓ Branch 1 taken 8915 times.
 23270 if (slice_type_b)
1168
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2720 times.
 5440 flag(direct_spatial_mv_pred_flag);
1169
1170
6/6
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✓ Branch 1 taken 8139 times.
✓ Branch 2 taken 3418 times.
✓ Branch 3 taken 78 times.
✓ Branch 4 taken 2720 times.
✓ Branch 5 taken 698 times.
 23270 if (slice_type_p || slice_type_sp || slice_type_b) {
1171
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 10937 times.
 21874 flag(num_ref_idx_active_override_flag);
1172
2/2
✓ Branch 0 taken 4987 times.
✓ Branch 1 taken 5950 times.
 21874 if (current->num_ref_idx_active_override_flag) {
1173
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4987 times.
 9974 ue(num_ref_idx_l0_active_minus1, 0, 31);
1174
2/2
✓ Branch 0 taken 2427 times.
✓ Branch 1 taken 2560 times.
 9974 if (slice_type_b)
1175
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2427 times.
 4854 ue(num_ref_idx_l1_active_minus1, 0, 31);
1176 } else {
1177
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2955 times.
 11900 infer(num_ref_idx_l0_active_minus1,
1178 pps->num_ref_idx_l0_default_active_minus1);
1179
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2955 times.
 11900 infer(num_ref_idx_l1_active_minus1,
1180 pps->num_ref_idx_l1_default_active_minus1);
1181 }
1182 }
1183
1184
1/2
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✗ Branch 1 not taken.
 23270 if (current->nal_unit_header.nal_unit_type == 20 ||
1185
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11635 times.
 23270 current->nal_unit_header.nal_unit_type == 21) {
1186 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "MVC / 3DAVC not supported.\n");
1187 ✗ return AVERROR_PATCHWELCOME;
1188 } else {
1189
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 11635 times.
 23270 CHECK(FUNC(ref_pic_list_modification)(ctx, rw, current));
1190 }
1191
1192
5/6
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✓ Branch 1 taken 10939 times.
✓ Branch 2 taken 86 times.
✓ Branch 3 taken 610 times.
✓ Branch 4 taken 86 times.
✗ Branch 5 not taken.
 23270 if ((pps->weighted_pred_flag && (slice_type_p || slice_type_sp)) ||
1193
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 11025 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 22050 (pps->weighted_bipred_idc == 1 && slice_type_b)) {
1194
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 610 times.
 1220 CHECK(FUNC(pred_weight_table)(ctx, rw, current));
1195 }
1196
1197
2/2
✓ Branch 0 taken 9065 times.
✓ Branch 1 taken 2570 times.
 23270 if (current->nal_unit_header.nal_ref_idc != 0) {
1198
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 9065 times.
 18130 CHECK(FUNC(dec_ref_pic_marking)(ctx, rw, current, idr_pic_flag));
1199 }
1200
1201
4/4
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✓ Branch 1 taken 7850 times.
✓ Branch 2 taken 3527 times.
✓ Branch 3 taken 258 times.
 23270 if (pps->entropy_coding_mode_flag &&
1202
1/2
✓ Branch 0 taken 3527 times.
✗ Branch 1 not taken.
 7054 !slice_type_i && !slice_type_si) {
1203
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3527 times.
 7054 ue(cabac_init_idc, 0, 2);
1204 }
1205
1206
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 11635 times.
 23270 se(slice_qp_delta, - 51 - 6 * sps->bit_depth_luma_minus8,
1207 + 51 + 6 * sps->bit_depth_luma_minus8);
1208
3/4
✓ Branch 0 taken 11557 times.
✓ Branch 1 taken 78 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 11557 times.
 23270 if (slice_type_sp || slice_type_si) {
1209
1/2
✓ Branch 0 taken 78 times.
✗ Branch 1 not taken.
 156 if (slice_type_sp)
1210
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 78 times.
 156 flag(sp_for_switch_flag);
1211
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 78 times.
 156 se(slice_qs_delta, -51, +51);
1212 }
1213
1214
2/2
✓ Branch 0 taken 6869 times.
✓ Branch 1 taken 4766 times.
 23270 if (pps->deblocking_filter_control_present_flag) {
1215
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 6869 times.
 13738 ue(disable_deblocking_filter_idc, 0, 2);
1216
2/2
✓ Branch 0 taken 4743 times.
✓ Branch 1 taken 2126 times.
 13738 if (current->disable_deblocking_filter_idc != 1) {
1217
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4743 times.
 9486 se(slice_alpha_c0_offset_div2, -6, +6);
1218
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4743 times.
 9486 se(slice_beta_offset_div2, -6, +6);
1219 } else {
1220
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1063 times.
 4252 infer(slice_alpha_c0_offset_div2, 0);
1221
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1063 times.
 4252 infer(slice_beta_offset_div2, 0);
1222 }
1223 } else {
1224
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2343 times.
 9532 infer(disable_deblocking_filter_idc, 0);
1225
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2343 times.
 9532 infer(slice_alpha_c0_offset_div2, 0);
1226
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2343 times.
 9532 infer(slice_beta_offset_div2, 0);
1227 }
1228
1229
2/2
✓ Branch 0 taken 3238 times.
✓ Branch 1 taken 8397 times.
 23270 if (pps->num_slice_groups_minus1 > 0 &&
1230
2/2
✓ Branch 0 taken 1328 times.
✓ Branch 1 taken 1910 times.
 6476 pps->slice_group_map_type >= 3 &&
1231
2/2
✓ Branch 0 taken 628 times.
✓ Branch 1 taken 700 times.
 2656 pps->slice_group_map_type <= 5) {
1232 unsigned int pic_size, max, bits;
1233
1234 1256 pic_size = (sps->pic_width_in_mbs_minus1 + 1) *
1235 1256 (sps->pic_height_in_map_units_minus1 + 1);
1236 1256 max = (pic_size + pps->slice_group_change_rate_minus1) /
1237 1256 (pps->slice_group_change_rate_minus1 + 1);
1238 1256 bits = av_ceil_log2(max + 1);
1239
1240
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 628 times.
 1256 u(bits, slice_group_change_cycle, 0, max);
1241 }
1242
1243
2/2
✓ Branch 0 taken 3785 times.
✓ Branch 1 taken 7850 times.
 23270 if (pps->entropy_coding_mode_flag) {
1244
2/2
✓ Branch 1 taken 12323 times.
✓ Branch 2 taken 3785 times.
 32216 while (byte_alignment(rw))
1245
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12323 times.
 24646 fixed(1, cabac_alignment_one_bit, 1);
1246 }
1247
1248 23270 return 0;
1249 }
1250
1251 68 static int FUNC(filler)(CodedBitstreamContext *ctx, RWContext *rw,
1252 H264RawFiller *current)
1253 {
1254 int err;
1255
1256 68 HEADER("Filler Data");
1257
1258
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 34 times.
 68 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
1259 1 << H264_NAL_FILLER_DATA));
1260
1261 #ifdef READ
1262
2/2
✓ Branch 1 taken 927636 times.
✓ Branch 2 taken 34 times.
 1855340 while (show_bits(rw, 8) == 0xff) {
1263
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 927636 times.
 1855272 fixed(8, ff_byte, 0xff);
1264 1855272 ++current->filler_size;
1265 }
1266 #else
1267 {
1268 uint32_t i;
1269 ✗ for (i = 0; i < current->filler_size; i++)
1270 ✗ fixed(8, ff_byte, 0xff);
1271 }
1272 #endif
1273
1274
2/2
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 33 times.
 68 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
1275
1276 66 return 0;
1277 }
1278
1279 4 static int FUNC(end_of_sequence)(CodedBitstreamContext *ctx, RWContext *rw,
1280 H264RawNALUnitHeader *current)
1281 {
1282 4 HEADER("End of Sequence");
1283
1284 4 return FUNC(nal_unit_header)(ctx, rw, current,
1285 1 << H264_NAL_END_SEQUENCE);
1286 }
1287
1288 4 static int FUNC(end_of_stream)(CodedBitstreamContext *ctx, RWContext *rw,
1289 H264RawNALUnitHeader *current)
1290 {
1291 4 HEADER("End of Stream");
1292
1293 4 return FUNC(nal_unit_header)(ctx, rw, current,
1294 1 << H264_NAL_END_STREAM);
1295 }
1296