FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_h264_syntax_template.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 482 693 69.6%
Branches: 489 1102 44.4%

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 7210 static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw)
20 {
21 int err;
22
23
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7210 fixed(1, rbsp_stop_one_bit, 1);
24
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38492 while (byte_alignment(rw) != 0)
25
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31284 fixed(1, rbsp_alignment_zero_bit, 0);
26
27 7208 return 0;
28 }
29
30 27032 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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27032 fixed(1, forbidden_zero_bit, 0);
37
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27032 ub(2, nal_ref_idc);
38
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27032 ub(5, nal_unit_type);
39
40
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27032 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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27032 if (current->nal_unit_type == 14 ||
47
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27032 current->nal_unit_type == 20 ||
48
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27032 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 27032 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 24 static int FUNC(hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
89 H264RawHRD *current)
90 {
91 int err, i;
92
93
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24 ue(cpb_cnt_minus1, 0, 31);
94
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24 ub(4, bit_rate_scale);
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24 ub(4, cpb_size_scale);
96
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48 for (i = 0; i <= current->cpb_cnt_minus1; i++) {
98
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24 ues(bit_rate_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
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24 ues(cpb_size_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
100
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24 flags(cbr_flag[i], 1, i);
101 }
102
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24 ub(5, initial_cpb_removal_delay_length_minus1);
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24 ub(5, cpb_removal_delay_length_minus1);
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24 ub(5, dpb_output_delay_length_minus1);
106
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24 ub(5, time_offset_length);
107
108 24 return 0;
109 }
110
111 24 static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
112 H264RawVUI *current, H264RawSPS *sps)
113 {
114 int err;
115
116
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24 flag(aspect_ratio_info_present_flag);
117
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24 if (current->aspect_ratio_info_present_flag) {
118
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8 ub(8, aspect_ratio_idc);
119
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8 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
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24 flag(overscan_info_present_flag);
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24 if (current->overscan_info_present_flag)
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8 flag(overscan_appropriate_flag);
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131
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24 flag(video_signal_type_present_flag);
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24 if (current->video_signal_type_present_flag) {
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8 ub(3, video_format);
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8 flag(video_full_range_flag);
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8 flag(colour_description_present_flag);
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8 if (current->colour_description_present_flag) {
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8 ub(8, colour_primaries);
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8 ub(8, transfer_characteristics);
139
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8 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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16 infer(video_format, 5);
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16 infer(video_full_range_flag, 0);
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16 infer(colour_primaries, 2);
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16 infer(transfer_characteristics, 2);
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16 infer(matrix_coefficients, 2);
151 }
152
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24 flag(chroma_loc_info_present_flag);
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24 if (current->chroma_loc_info_present_flag) {
155
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8 ue(chroma_sample_loc_type_top_field, 0, 5);
156
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8 ue(chroma_sample_loc_type_bottom_field, 0, 5);
157 } else {
158
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16 infer(chroma_sample_loc_type_top_field, 0);
159
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16 infer(chroma_sample_loc_type_bottom_field, 0);
160 }
161
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24 flag(timing_info_present_flag);
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24 if (current->timing_info_present_flag) {
164
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24 u(32, num_units_in_tick, 1, UINT32_MAX);
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24 u(32, time_scale, 1, UINT32_MAX);
166
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24 flag(fixed_frame_rate_flag);
167 } else {
168 infer(fixed_frame_rate_flag, 0);
169 }
170
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24 flag(nal_hrd_parameters_present_flag);
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24 if (current->nal_hrd_parameters_present_flag)
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16 CHECK(FUNC(hrd_parameters)(ctx, rw, &current->nal_hrd_parameters));
174
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24 flag(vcl_hrd_parameters_present_flag);
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24 if (current->vcl_hrd_parameters_present_flag)
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8 CHECK(FUNC(hrd_parameters)(ctx, rw, &current->vcl_hrd_parameters));
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24 if (current->nal_hrd_parameters_present_flag ||
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8 current->vcl_hrd_parameters_present_flag)
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16 flag(low_delay_hrd_flag);
182 else
183
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8 infer(low_delay_hrd_flag, 1 - current->fixed_frame_rate_flag);
184
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24 flag(pic_struct_present_flag);
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24 flag(bitstream_restriction_flag);
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24 if (current->bitstream_restriction_flag) {
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16 flag(motion_vectors_over_pic_boundaries_flag);
190
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16 ue(max_bytes_per_pic_denom, 0, 16);
191
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16 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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16 ue(log2_max_mv_length_horizontal, 0, 16);
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16 ue(log2_max_mv_length_vertical, 0, 16);
196
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16 ue(max_num_reorder_frames, 0, H264_MAX_DPB_FRAMES);
197
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16 ue(max_dec_frame_buffering, 0, H264_MAX_DPB_FRAMES);
198 } else {
199
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8 infer(motion_vectors_over_pic_boundaries_flag, 1);
200
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8 infer(max_bytes_per_pic_denom, 2);
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8 infer(max_bits_per_mb_denom, 1);
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8 infer(log2_max_mv_length_horizontal, 15);
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8 infer(log2_max_mv_length_vertical, 15);
204
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8 if ((sps->profile_idc == 44 || sps->profile_idc == 86 ||
206
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8 sps->profile_idc == 100 || sps->profile_idc == 110 ||
207 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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8 infer(max_num_reorder_frames, H264_MAX_DPB_FRAMES);
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8 infer(max_dec_frame_buffering, H264_MAX_DPB_FRAMES);
214 }
215 }
216
217 24 return 0;
218 }
219
220 144 static int FUNC(vui_parameters_default)(CodedBitstreamContext *ctx,
221 RWContext *rw, H264RawVUI *current,
222 H264RawSPS *sps)
223 {
224
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144 infer(aspect_ratio_idc, 0);
225
226
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144 infer(video_format, 5);
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144 infer(video_full_range_flag, 0);
228
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144 infer(colour_primaries, 2);
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144 infer(transfer_characteristics, 2);
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144 infer(matrix_coefficients, 2);
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144 infer(chroma_sample_loc_type_top_field, 0);
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144 infer(chroma_sample_loc_type_bottom_field, 0);
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144 infer(fixed_frame_rate_flag, 0);
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144 infer(low_delay_hrd_flag, 1);
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144 infer(pic_struct_present_flag, 0);
239
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144 infer(motion_vectors_over_pic_boundaries_flag, 1);
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144 infer(max_bytes_per_pic_denom, 2);
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144 infer(max_bits_per_mb_denom, 1);
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144 infer(log2_max_mv_length_horizontal, 15);
244
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144 infer(log2_max_mv_length_vertical, 15);
245
246
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144 if ((sps->profile_idc == 44 || sps->profile_idc == 86 ||
247
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144 sps->profile_idc == 100 || sps->profile_idc == 110 ||
248
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144 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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144 infer(max_num_reorder_frames, H264_MAX_DPB_FRAMES);
254
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144 infer(max_dec_frame_buffering, H264_MAX_DPB_FRAMES);
255 }
256
257 144 return 0;
258 }
259
260 168 static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
261 H264RawSPS *current)
262 {
263 int err, i;
264
265 168 HEADER("Sequence Parameter Set");
266
267
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168 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
268 1 << H264_NAL_SPS));
269
270
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168 ub(8, profile_idc);
271
272
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168 flag(constraint_set0_flag);
273
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168 flag(constraint_set1_flag);
274
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168 flag(constraint_set2_flag);
275
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168 flag(constraint_set3_flag);
276
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168 flag(constraint_set4_flag);
277
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168 flag(constraint_set5_flag);
278
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168 u(2, reserved_zero_2bits, 0, 0);
280
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168 ub(8, level_idc);
282
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168 ue(seq_parameter_set_id, 0, 31);
284
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168 if (current->profile_idc == 100 || current->profile_idc == 110 ||
286
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160 current->profile_idc == 122 || current->profile_idc == 244 ||
287
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160 current->profile_idc == 44 || current->profile_idc == 83 ||
288
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160 current->profile_idc == 86 || current->profile_idc == 118 ||
289
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160 current->profile_idc == 128 || current->profile_idc == 138) {
290
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8 ue(chroma_format_idc, 0, 3);
291
292
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8 if (current->chroma_format_idc == 3)
293 flag(separate_colour_plane_flag);
294 else
295
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8 infer(separate_colour_plane_flag, 0);
296
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8 ue(bit_depth_luma_minus8, 0, 6);
298
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8 ue(bit_depth_chroma_minus8, 0, 6);
299
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8 flag(qpprime_y_zero_transform_bypass_flag);
301
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8 flag(seq_scaling_matrix_present_flag);
303
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8 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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160 infer(chroma_format_idc, current->profile_idc == 183 ? 0 : 1);
320
321
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160 infer(separate_colour_plane_flag, 0);
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160 infer(bit_depth_luma_minus8, 0);
323
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160 infer(bit_depth_chroma_minus8, 0);
324 }
325
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168 ue(log2_max_frame_num_minus4, 0, 12);
327
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168 ue(pic_order_cnt_type, 0, 2);
328
329
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168 if (current->pic_order_cnt_type == 0) {
330
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100 ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12);
331
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68 } 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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168 ue(max_num_ref_frames, 0, H264_MAX_DPB_FRAMES);
342
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168 flag(gaps_in_frame_num_allowed_flag);
343
344
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168 ue(pic_width_in_mbs_minus1, 0, H264_MAX_MB_WIDTH);
345
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168 ue(pic_height_in_map_units_minus1, 0, H264_MAX_MB_HEIGHT);
346
347
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168 flag(frame_mbs_only_flag);
348
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168 if (!current->frame_mbs_only_flag)
349
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52 flag(mb_adaptive_frame_field_flag);
350
351
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168 flag(direct_8x8_inference_flag);
352
353
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168 flag(frame_cropping_flag);
354
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168 if (current->frame_cropping_flag) {
355
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16 ue(frame_crop_left_offset, 0, H264_MAX_WIDTH);
356
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16 ue(frame_crop_right_offset, 0, H264_MAX_WIDTH);
357
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16 ue(frame_crop_top_offset, 0, H264_MAX_HEIGHT);
358
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16 ue(frame_crop_bottom_offset, 0, H264_MAX_HEIGHT);
359 }
360
361
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168 flag(vui_parameters_present_flag);
362
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168 if (current->vui_parameters_present_flag)
363
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24 CHECK(FUNC(vui_parameters)(ctx, rw, &current->vui, current));
364 else
365
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144 CHECK(FUNC(vui_parameters_default)(ctx, rw, &current->vui, current));
366
367
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168 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
368
369 168 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 4736 static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw,
405 H264RawPPS *current)
406 {
407 4736 CodedBitstreamH264Context *h264 = ctx->priv_data;
408 const H264RawSPS *sps;
409 int err, i;
410
411 4736 HEADER("Picture Parameter Set");
412
413
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4736 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
414 1 << H264_NAL_PPS));
415
416
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4736 ue(pic_parameter_set_id, 0, 255);
417
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4736 ue(seq_parameter_set_id, 0, 31);
418
419 4736 sps = h264->sps[current->seq_parameter_set_id];
420
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4736 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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4736 flag(entropy_coding_mode_flag);
427
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4736 flag(bottom_field_pic_order_in_frame_present_flag);
428
429
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4736 ue(num_slice_groups_minus1, 0, 7);
430
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4736 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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4736 ue(num_ref_idx_l0_default_active_minus1, 0, 31);
466
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4736 ue(num_ref_idx_l1_default_active_minus1, 0, 31);
467
468
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4736 flag(weighted_pred_flag);
469
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4736 u(2, weighted_bipred_idc, 0, 2);
470
471
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4736 se(pic_init_qp_minus26, -26 - 6 * sps->bit_depth_luma_minus8, +25);
472
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4736 se(pic_init_qs_minus26, -26, +25);
473
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4736 se(chroma_qp_index_offset, -12, +12);
474
475
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4736 flag(deblocking_filter_control_present_flag);
476
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4736 flag(constrained_intra_pred_flag);
477
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4736 flag(redundant_pic_cnt_present_flag);
478
479
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4736 if (more_rbsp_data(current->more_rbsp_data))
480 {
481
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8 flag(transform_8x8_mode_flag);
482
483
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8 flag(pic_scaling_matrix_present_flag);
484
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8 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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8 se(second_chroma_qp_index_offset, -12, +12);
502 } else {
503
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4728 infer(transform_8x8_mode_flag, 0);
504
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4728 infer(pic_scaling_matrix_present_flag, 0);
505
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4728 infer(second_chroma_qp_index_offset, current->chroma_qp_index_offset);
506 }
507
508
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4736 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
509
510 4736 return 0;
511 }
512
513 18 static int FUNC(sei_buffering_period)(CodedBitstreamContext *ctx, RWContext *rw,
514 H264RawSEIBufferingPeriod *current,
515 SEIMessageState *sei)
516 {
517 18 CodedBitstreamH264Context *h264 = ctx->priv_data;
518 const H264RawSPS *sps;
519 int err, i, length;
520
521 18 HEADER("Buffering Period");
522
523
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18 ue(seq_parameter_set_id, 0, 31);
524
525 18 sps = h264->sps[current->seq_parameter_set_id];
526
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18 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 18 h264->active_sps = sps;
532
533
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18 if (sps->vui.nal_hrd_parameters_present_flag) {
534
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24 for (i = 0; i <= sps->vui.nal_hrd_parameters.cpb_cnt_minus1; i++) {
535 12 length = sps->vui.nal_hrd_parameters.initial_cpb_removal_delay_length_minus1 + 1;
536
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12 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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12 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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18 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 18 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 1934 static int FUNC(sei_pic_timing)(CodedBitstreamContext *ctx, RWContext *rw,
608 H264RawSEIPicTiming *current,
609 SEIMessageState *sei)
610 {
611 1934 CodedBitstreamH264Context *h264 = ctx->priv_data;
612 const H264RawSPS *sps;
613 int err;
614
615 1934 HEADER("Picture Timing");
616
617 1934 sps = h264->active_sps;
618
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1934 if (!sps) {
619 // If there is exactly one possible SPS but it is not yet active
620 // then just assume that it should be the active one.
621 int i, k = -1;
622 for (i = 0; i < H264_MAX_SPS_COUNT; i++) {
623 if (h264->sps[i]) {
624 if (k >= 0) {
625 k = -1;
626 break;
627 }
628 k = i;
629 }
630 }
631 if (k >= 0)
632 sps = h264->sps[k];
633 }
634
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1934 if (!sps) {
635 av_log(ctx->log_ctx, AV_LOG_ERROR,
636 "No active SPS for pic_timing.\n");
637 return AVERROR_INVALIDDATA;
638 }
639
640
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1934 if (sps->vui.nal_hrd_parameters_present_flag ||
641
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236 sps->vui.vcl_hrd_parameters_present_flag) {
642 const H264RawHRD *hrd;
643
644
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1698 if (sps->vui.nal_hrd_parameters_present_flag)
645 1698 hrd = &sps->vui.nal_hrd_parameters;
646 else if (sps->vui.vcl_hrd_parameters_present_flag)
647 hrd = &sps->vui.vcl_hrd_parameters;
648 else {
649 av_log(ctx->log_ctx, AV_LOG_ERROR,
650 "No HRD parameters for pic_timing.\n");
651 return AVERROR_INVALIDDATA;
652 }
653
654
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1698 ub(hrd->cpb_removal_delay_length_minus1 + 1, cpb_removal_delay);
655
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1698 ub(hrd->dpb_output_delay_length_minus1 + 1, dpb_output_delay);
656 }
657
658
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1934 if (sps->vui.pic_struct_present_flag) {
659 static const uint8_t num_clock_ts[9] = {
660 1, 1, 1, 2, 2, 3, 3, 2, 3
661 };
662 int i;
663
664
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1904 u(4, pic_struct, 0, 8);
665
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1904 if (current->pic_struct > 8)
666 return AVERROR_INVALIDDATA;
667
668
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6304 for (i = 0; i < num_clock_ts[current->pic_struct]; i++) {
669
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4400 flags(clock_timestamp_flag[i], 1, i);
670
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4400 if (current->clock_timestamp_flag[i])
671 CHECK(FUNC(sei_pic_timestamp)(ctx, rw,
672 &current->timestamp[i], sps));
673 }
674 }
675
676 1934 return 0;
677 }
678
679 30 static int FUNC(sei_pan_scan_rect)(CodedBitstreamContext *ctx, RWContext *rw,
680 H264RawSEIPanScanRect *current,
681 SEIMessageState *sei)
682 {
683 int err, i;
684
685 30 HEADER("Pan-Scan Rectangle");
686
687
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30 ue(pan_scan_rect_id, 0, UINT32_MAX - 1);
688
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30 flag(pan_scan_rect_cancel_flag);
689
690
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30 if (!current->pan_scan_rect_cancel_flag) {
691
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30 ue(pan_scan_cnt_minus1, 0, 2);
692
693
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60 for (i = 0; i <= current->pan_scan_cnt_minus1; i++) {
694
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30 ses(pan_scan_rect_left_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
695
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30 ses(pan_scan_rect_right_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
696
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30 ses(pan_scan_rect_top_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
697
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30 ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
698 }
699
700
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30 ue(pan_scan_rect_repetition_period, 0, 16384);
701 }
702
703 30 return 0;
704 }
705
706 12 static int FUNC(sei_recovery_point)(CodedBitstreamContext *ctx, RWContext *rw,
707 H264RawSEIRecoveryPoint *current,
708 SEIMessageState *sei)
709 {
710 int err;
711
712 12 HEADER("Recovery Point");
713
714
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12 ue(recovery_frame_cnt, 0, 65535);
715
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12 flag(exact_match_flag);
716
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12 flag(broken_link_flag);
717
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12 u(2, changing_slice_group_idc, 0, 2);
718
719 12 return 0;
720 }
721
722 static int FUNC(film_grain_characteristics)(CodedBitstreamContext *ctx, RWContext *rw,
723 H264RawFilmGrainCharacteristics *current,
724 SEIMessageState *state)
725 {
726 CodedBitstreamH264Context *h264 = ctx->priv_data;
727 const H264RawSPS *sps;
728 int err, c, i, j;
729
730 HEADER("Film Grain Characteristics");
731
732 sps = h264->active_sps;
733 if (!sps) {
734 // If there is exactly one possible SPS but it is not yet active
735 // then just assume that it should be the active one.
736 int i, k = -1;
737 for (i = 0; i < H264_MAX_SPS_COUNT; i++) {
738 if (h264->sps[i]) {
739 if (k >= 0) {
740 k = -1;
741 break;
742 }
743 k = i;
744 }
745 }
746 if (k >= 0)
747 sps = h264->sps[k];
748 }
749
750 flag(film_grain_characteristics_cancel_flag);
751 if (!current->film_grain_characteristics_cancel_flag) {
752 int filmGrainBitDepth[3];
753
754 u(2, film_grain_model_id, 0, 1);
755 flag(separate_colour_description_present_flag);
756 if (current->separate_colour_description_present_flag) {
757 ub(3, film_grain_bit_depth_luma_minus8);
758 ub(3, film_grain_bit_depth_chroma_minus8);
759 flag(film_grain_full_range_flag);
760 ub(8, film_grain_colour_primaries);
761 ub(8, film_grain_transfer_characteristics);
762 ub(8, film_grain_matrix_coefficients);
763 } else {
764 if (!sps) {
765 av_log(ctx->log_ctx, AV_LOG_ERROR,
766 "No active SPS for film_grain_characteristics.\n");
767 return AVERROR_INVALIDDATA;
768 }
769 infer(film_grain_bit_depth_luma_minus8, sps->bit_depth_luma_minus8);
770 infer(film_grain_bit_depth_chroma_minus8, sps->bit_depth_chroma_minus8);
771 infer(film_grain_full_range_flag, sps->vui.video_full_range_flag);
772 infer(film_grain_colour_primaries, sps->vui.colour_primaries);
773 infer(film_grain_transfer_characteristics, sps->vui.transfer_characteristics);
774 infer(film_grain_matrix_coefficients, sps->vui.matrix_coefficients);
775 }
776
777 filmGrainBitDepth[0] = current->film_grain_bit_depth_luma_minus8 + 8;
778 filmGrainBitDepth[1] =
779 filmGrainBitDepth[2] = current->film_grain_bit_depth_chroma_minus8 + 8;
780
781 u(2, blending_mode_id, 0, 1);
782 ub(4, log2_scale_factor);
783 for (c = 0; c < 3; c++)
784 flags(comp_model_present_flag[c], 1, c);
785 for (c = 0; c < 3; c++) {
786 if (current->comp_model_present_flag[c]) {
787 ubs(8, num_intensity_intervals_minus1[c], 1, c);
788 us(3, num_model_values_minus1[c], 0, 5, 1, c);
789 for (i = 0; i <= current->num_intensity_intervals_minus1[c]; i++) {
790 ubs(8, intensity_interval_lower_bound[c][i], 2, c, i);
791 ubs(8, intensity_interval_upper_bound[c][i], 2, c, i);
792 for (j = 0; j <= current->num_model_values_minus1[c]; j++)
793 ses(comp_model_value[c][i][j], 0 - current->film_grain_model_id * (1 << (filmGrainBitDepth[c] - 1)),
794 ((1 << filmGrainBitDepth[c]) - 1) - current->film_grain_model_id * (1 << (filmGrainBitDepth[c] - 1)),
795 3, c, i, j);
796 }
797 }
798 }
799 ue(film_grain_characteristics_repetition_period, 0, 16384);
800 }
801
802 return 0;
803 }
804
805 6 static int FUNC(sei_display_orientation)(CodedBitstreamContext *ctx, RWContext *rw,
806 H264RawSEIDisplayOrientation *current,
807 SEIMessageState *sei)
808 {
809 int err;
810
811 6 HEADER("Display Orientation");
812
813
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6 flag(display_orientation_cancel_flag);
814
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6 if (!current->display_orientation_cancel_flag) {
815
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6 flag(hor_flip);
816
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6 flag(ver_flip);
817
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6 ub(16, anticlockwise_rotation);
818
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6 ue(display_orientation_repetition_period, 0, 16384);
819
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6 flag(display_orientation_extension_flag);
820 }
821
822 6 return 0;
823 }
824
825 1378 static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
826 H264RawSEI *current)
827 {
828 int err;
829
830 1378 HEADER("Supplemental Enhancement Information");
831
832
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1378 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
833 1 << H264_NAL_SEI));
834
835
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1378 CHECK(FUNC_SEI(message_list)(ctx, rw, &current->message_list, 1));
836
837
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1378 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
838
839 1378 return 0;
840 }
841
842 860 static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw,
843 H264RawAUD *current)
844 {
845 int err;
846
847 860 HEADER("Access Unit Delimiter");
848
849
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860 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
850 1 << H264_NAL_AUD));
851
852
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860 ub(3, primary_pic_type);
853
854
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860 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
855
856 860 return 0;
857 }
858
859 19810 static int FUNC(ref_pic_list_modification)(CodedBitstreamContext *ctx, RWContext *rw,
860 H264RawSliceHeader *current)
861 {
862 19810 CodedBitstreamH264Context *h264 = ctx->priv_data;
863 19810 const H264RawSPS *sps = h264->active_sps;
864 int err, i, mopn;
865
866
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19810 if (current->slice_type % 5 != 2 &&
867
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18678 current->slice_type % 5 != 4) {
868
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18678 flag(ref_pic_list_modification_flag_l0);
869
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18678 if (current->ref_pic_list_modification_flag_l0) {
870
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6172 for (i = 0; i < H264_MAX_RPLM_COUNT; i++) {
871
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6172 xue(modification_of_pic_nums_idc,
872 current->rplm_l0[i].modification_of_pic_nums_idc, 0, 3, 0);
873
874 6172 mopn = current->rplm_l0[i].modification_of_pic_nums_idc;
875
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6172 if (mopn == 3)
876 1980 break;
877
878
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✓ Branch 3 taken 14 times.
4192 if (mopn == 0 || mopn == 1)
879
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4164 xue(abs_diff_pic_num_minus1,
880 current->rplm_l0[i].abs_diff_pic_num_minus1,
881 0, (1 + current->field_pic_flag) *
882 (1 << (sps->log2_max_frame_num_minus4 + 4)), 0);
883
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28 else if (mopn == 2)
884
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28 xue(long_term_pic_num,
885 current->rplm_l0[i].long_term_pic_num,
886 0, sps->max_num_ref_frames - 1, 0);
887 }
888 }
889 }
890
891
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19810 if (current->slice_type % 5 == 1) {
892
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4390 flag(ref_pic_list_modification_flag_l1);
893
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4390 if (current->ref_pic_list_modification_flag_l1) {
894 for (i = 0; i < H264_MAX_RPLM_COUNT; i++) {
895 xue(modification_of_pic_nums_idc,
896 current->rplm_l1[i].modification_of_pic_nums_idc, 0, 3, 0);
897
898 mopn = current->rplm_l1[i].modification_of_pic_nums_idc;
899 if (mopn == 3)
900 break;
901
902 if (mopn == 0 || mopn == 1)
903 xue(abs_diff_pic_num_minus1,
904 current->rplm_l1[i].abs_diff_pic_num_minus1,
905 0, (1 + current->field_pic_flag) *
906 (1 << (sps->log2_max_frame_num_minus4 + 4)), 0);
907 else if (mopn == 2)
908 xue(long_term_pic_num,
909 current->rplm_l1[i].long_term_pic_num,
910 0, sps->max_num_ref_frames - 1, 0);
911 }
912 }
913 }
914
915 19810 return 0;
916 }
917
918 336 static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
919 H264RawSliceHeader *current)
920 {
921 336 CodedBitstreamH264Context *h264 = ctx->priv_data;
922 336 const H264RawSPS *sps = h264->active_sps;
923 int chroma;
924 int err, i, j;
925
926
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336 ue(luma_log2_weight_denom, 0, 7);
927
928
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336 chroma = !sps->separate_colour_plane_flag && sps->chroma_format_idc != 0;
929
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336 if (chroma)
930
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336 ue(chroma_log2_weight_denom, 0, 7);
931
932
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1976 for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
933
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1640 flags(luma_weight_l0_flag[i], 1, i);
934
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1640 if (current->luma_weight_l0_flag[i]) {
935
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872 ses(luma_weight_l0[i], -128, +127, 1, i);
936
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872 ses(luma_offset_l0[i], -128, +127, 1, i);
937 }
938
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1640 if (chroma) {
939
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1640 flags(chroma_weight_l0_flag[i], 1, i);
940
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1640 if (current->chroma_weight_l0_flag[i]) {
941
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2496 for (j = 0; j < 2; j++) {
942
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1664 ses(chroma_weight_l0[i][j], -128, +127, 2, i, j);
943
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1664 ses(chroma_offset_l0[i][j], -128, +127, 2, i, j);
944 }
945 }
946 }
947 }
948
949
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336 if (current->slice_type % 5 == 1) {
950 for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
951 flags(luma_weight_l1_flag[i], 1, i);
952 if (current->luma_weight_l1_flag[i]) {
953 ses(luma_weight_l1[i], -128, +127, 1, i);
954 ses(luma_offset_l1[i], -128, +127, 1, i);
955 }
956 if (chroma) {
957 flags(chroma_weight_l1_flag[i], 1, i);
958 if (current->chroma_weight_l1_flag[i]) {
959 for (j = 0; j < 2; j++) {
960 ses(chroma_weight_l1[i][j], -128, +127, 2, i, j);
961 ses(chroma_offset_l1[i][j], -128, +127, 2, i, j);
962 }
963 }
964 }
965 }
966 }
967
968 336 return 0;
969 }
970
971 15452 static int FUNC(dec_ref_pic_marking)(CodedBitstreamContext *ctx, RWContext *rw,
972 H264RawSliceHeader *current, int idr_pic_flag)
973 {
974 15452 CodedBitstreamH264Context *h264 = ctx->priv_data;
975 15452 const H264RawSPS *sps = h264->active_sps;
976 int err, i;
977 uint32_t mmco;
978
979
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15452 if (idr_pic_flag) {
980
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232 flag(no_output_of_prior_pics_flag);
981
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232 flag(long_term_reference_flag);
982 } else {
983
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15220 flag(adaptive_ref_pic_marking_mode_flag);
984
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15220 if (current->adaptive_ref_pic_marking_mode_flag) {
985
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1772 for (i = 0; i < H264_MAX_MMCO_COUNT; i++) {
986
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1772 xue(memory_management_control_operation,
987 current->mmco[i].memory_management_control_operation,
988 0, 6, 0);
989
990 1772 mmco = current->mmco[i].memory_management_control_operation;
991
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1772 if (mmco == 0)
992 864 break;
993
994
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908 if (mmco == 1 || mmco == 3)
995
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744 xue(difference_of_pic_nums_minus1,
996 current->mmco[i].difference_of_pic_nums_minus1,
997 0, INT32_MAX, 0);
998
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908 if (mmco == 2)
999 xue(long_term_pic_num,
1000 current->mmco[i].long_term_pic_num,
1001 0, sps->max_num_ref_frames - 1, 0);
1002
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908 if (mmco == 3 || mmco == 6)
1003
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112 xue(long_term_frame_idx,
1004 current->mmco[i].long_term_frame_idx,
1005 0, sps->max_num_ref_frames - 1, 0);
1006
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908 if (mmco == 4)
1007
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8 xue(max_long_term_frame_idx_plus1,
1008 current->mmco[i].max_long_term_frame_idx_plus1,
1009 0, sps->max_num_ref_frames, 0);
1010 }
1011
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864 if (i == H264_MAX_MMCO_COUNT) {
1012 av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many "
1013 "memory management control operations.\n");
1014 return AVERROR_INVALIDDATA;
1015 }
1016 }
1017 }
1018
1019 15452 return 0;
1020 }
1021
1022 19810 static int FUNC(slice_header)(CodedBitstreamContext *ctx, RWContext *rw,
1023 H264RawSliceHeader *current)
1024 {
1025 19810 CodedBitstreamH264Context *h264 = ctx->priv_data;
1026 const H264RawSPS *sps;
1027 const H264RawPPS *pps;
1028 int err;
1029 int idr_pic_flag;
1030 int slice_type_i, slice_type_p, slice_type_b;
1031 int slice_type_si, slice_type_sp;
1032
1033 19810 HEADER("Slice Header");
1034
1035
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19810 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
1036 1 << H264_NAL_SLICE |
1037 1 << H264_NAL_IDR_SLICE |
1038 1 << H264_NAL_AUXILIARY_SLICE));
1039
1040
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19810 if (current->nal_unit_header.nal_unit_type == H264_NAL_AUXILIARY_SLICE) {
1041 if (!h264->last_slice_nal_unit_type) {
1042 av_log(ctx->log_ctx, AV_LOG_ERROR, "Auxiliary slice "
1043 "is not decodable without the main picture "
1044 "in the same access unit.\n");
1045 return AVERROR_INVALIDDATA;
1046 }
1047 idr_pic_flag = h264->last_slice_nal_unit_type == H264_NAL_IDR_SLICE;
1048 } else {
1049 19810 idr_pic_flag = current->nal_unit_header.nal_unit_type == H264_NAL_IDR_SLICE;
1050 }
1051
1052
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19810 ue(first_mb_in_slice, 0, H264_MAX_MB_PIC_SIZE - 1);
1053
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19810 ue(slice_type, 0, 9);
1054
1055 19810 slice_type_i = current->slice_type % 5 == 2;
1056 19810 slice_type_p = current->slice_type % 5 == 0;
1057 19810 slice_type_b = current->slice_type % 5 == 1;
1058 19810 slice_type_si = current->slice_type % 5 == 4;
1059 19810 slice_type_sp = current->slice_type % 5 == 3;
1060
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19810 if (idr_pic_flag && !(slice_type_i || slice_type_si)) {
1062 av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid slice type %d "
1063 "for IDR picture.\n", current->slice_type);
1064 return AVERROR_INVALIDDATA;
1065 }
1066
1067
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19810 ue(pic_parameter_set_id, 0, 255);
1068
1069 19810 pps = h264->pps[current->pic_parameter_set_id];
1070
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19810 if (!pps) {
1071 av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
1072 current->pic_parameter_set_id);
1073 return AVERROR_INVALIDDATA;
1074 }
1075 19810 h264->active_pps = pps;
1076
1077 19810 sps = h264->sps[pps->seq_parameter_set_id];
1078
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19810 if (!sps) {
1079 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1080 pps->seq_parameter_set_id);
1081 return AVERROR_INVALIDDATA;
1082 }
1083 19810 h264->active_sps = sps;
1084
1085
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19810 if (sps->separate_colour_plane_flag)
1086 u(2, colour_plane_id, 0, 2);
1087
1088
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19810 ub(sps->log2_max_frame_num_minus4 + 4, frame_num);
1089
1090
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19810 if (!sps->frame_mbs_only_flag) {
1091
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1562 flag(field_pic_flag);
1092
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1562 if (current->field_pic_flag)
1093
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1174 flag(bottom_field_flag);
1094 else
1095
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388 infer(bottom_field_flag, 0);
1096 } else {
1097
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18248 infer(field_pic_flag, 0);
1098
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18248 infer(bottom_field_flag, 0);
1099 }
1100
1101
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19810 if (idr_pic_flag)
1102
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232 ue(idr_pic_id, 0, 65535);
1103
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19810 if (sps->pic_order_cnt_type == 0) {
1105
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10122 ub(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, pic_order_cnt_lsb);
1106
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✓ Branch 1 taken 4881 times.
10122 if (pps->bottom_field_pic_order_in_frame_present_flag &&
1107
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✗ Branch 1 not taken.
360 !current->field_pic_flag)
1108
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360 se(delta_pic_order_cnt_bottom, INT32_MIN + 1, INT32_MAX);
1109
1110
2/2
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✓ Branch 1 taken 282 times.
9688 } else if (sps->pic_order_cnt_type == 1) {
1111
2/2
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✓ Branch 1 taken 3716 times.
9124 if (!sps->delta_pic_order_always_zero_flag) {
1112
1/2
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1692 se(delta_pic_order_cnt[0], INT32_MIN + 1, INT32_MAX);
1113
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✓ Branch 1 taken 846 times.
1692 if (pps->bottom_field_pic_order_in_frame_present_flag &&
1114 !current->field_pic_flag)
1115 se(delta_pic_order_cnt[1], INT32_MIN + 1, INT32_MAX);
1116 else
1117
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✓ Branch 1 taken 423 times.
1692 infer(delta_pic_order_cnt[1], 0);
1118 } else {
1119
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✓ Branch 1 taken 1858 times.
7432 infer(delta_pic_order_cnt[0], 0);
1120
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✓ Branch 1 taken 1858 times.
7432 infer(delta_pic_order_cnt[1], 0);
1121 }
1122 }
1123
1124
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19810 if (pps->redundant_pic_cnt_present_flag)
1125 ue(redundant_pic_cnt, 0, 127);
1126 else
1127
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✓ Branch 1 taken 4952 times.
19810 infer(redundant_pic_cnt, 0);
1128
1129
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19810 if (current->nal_unit_header.nal_unit_type != H264_NAL_AUXILIARY_SLICE
1130
1/2
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✗ Branch 1 not taken.
19810 && !current->redundant_pic_cnt)
1131 19810 h264->last_slice_nal_unit_type =
1132 19810 current->nal_unit_header.nal_unit_type;
1133
1134
2/2
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✓ Branch 1 taken 7710 times.
19810 if (slice_type_b)
1135
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4390 flag(direct_spatial_mv_pred_flag);
1136
1137
6/6
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✓ Branch 1 taken 7066 times.
✓ Branch 2 taken 2761 times.
✓ Branch 3 taken 78 times.
✓ Branch 4 taken 2195 times.
✓ Branch 5 taken 566 times.
19810 if (slice_type_p || slice_type_sp || slice_type_b) {
1138
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✓ Branch 2 taken 9339 times.
18678 flag(num_ref_idx_active_override_flag);
1139
2/2
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✓ Branch 1 taken 4963 times.
18678 if (current->num_ref_idx_active_override_flag) {
1140
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✓ Branch 2 taken 4376 times.
8752 ue(num_ref_idx_l0_active_minus1, 0, 31);
1141
2/2
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✓ Branch 1 taken 2360 times.
8752 if (slice_type_b)
1142
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✓ Branch 2 taken 2016 times.
4032 ue(num_ref_idx_l1_active_minus1, 0, 31);
1143 } else {
1144
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✓ Branch 1 taken 2481 times.
9926 infer(num_ref_idx_l0_active_minus1,
1145 pps->num_ref_idx_l0_default_active_minus1);
1146
1/2
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✓ Branch 1 taken 2481 times.
9926 infer(num_ref_idx_l1_active_minus1,
1147 pps->num_ref_idx_l1_default_active_minus1);
1148 }
1149 }
1150
1151
1/2
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19810 if (current->nal_unit_header.nal_unit_type == 20 ||
1152
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✓ Branch 1 taken 9905 times.
19810 current->nal_unit_header.nal_unit_type == 21) {
1153 av_log(ctx->log_ctx, AV_LOG_ERROR, "MVC / 3DAVC not supported.\n");
1154 return AVERROR_PATCHWELCOME;
1155 } else {
1156
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✓ Branch 2 taken 9905 times.
19810 CHECK(FUNC(ref_pic_list_modification)(ctx, rw, current));
1157 }
1158
1159
3/6
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✓ Branch 1 taken 9737 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 168 times.
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19810 if ((pps->weighted_pred_flag && (slice_type_p || slice_type_sp)) ||
1160
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19474 (pps->weighted_bipred_idc == 1 && slice_type_b)) {
1161
1/2
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✓ Branch 2 taken 168 times.
336 CHECK(FUNC(pred_weight_table)(ctx, rw, current));
1162 }
1163
1164
2/2
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✓ Branch 1 taken 2179 times.
19810 if (current->nal_unit_header.nal_ref_idc != 0) {
1165
1/2
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✓ Branch 2 taken 7726 times.
15452 CHECK(FUNC(dec_ref_pic_marking)(ctx, rw, current, idr_pic_flag));
1166 }
1167
1168
4/4
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✓ Branch 1 taken 7426 times.
✓ Branch 2 taken 2317 times.
✓ Branch 3 taken 162 times.
19810 if (pps->entropy_coding_mode_flag &&
1169
1/2
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✗ Branch 1 not taken.
4634 !slice_type_i && !slice_type_si) {
1170
1/2
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✓ Branch 2 taken 2317 times.
4634 ue(cabac_init_idc, 0, 2);
1171 }
1172
1173
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 9905 times.
19810 se(slice_qp_delta, - 51 - 6 * sps->bit_depth_luma_minus8,
1174 + 51 + 6 * sps->bit_depth_luma_minus8);
1175
3/4
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✓ Branch 1 taken 78 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 9827 times.
19810 if (slice_type_sp || slice_type_si) {
1176
1/2
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✗ Branch 1 not taken.
156 if (slice_type_sp)
1177
1/2
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✓ Branch 2 taken 78 times.
156 flag(sp_for_switch_flag);
1178
1/2
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✓ Branch 2 taken 78 times.
156 se(slice_qs_delta, -51, +51);
1179 }
1180
1181
2/2
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✓ Branch 1 taken 4087 times.
19810 if (pps->deblocking_filter_control_present_flag) {
1182
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5818 times.
11636 ue(disable_deblocking_filter_idc, 0, 2);
1183
2/2
✓ Branch 0 taken 4116 times.
✓ Branch 1 taken 1702 times.
11636 if (current->disable_deblocking_filter_idc != 1) {
1184
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4116 times.
8232 se(slice_alpha_c0_offset_div2, -6, +6);
1185
1/2
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✓ Branch 2 taken 4116 times.
8232 se(slice_beta_offset_div2, -6, +6);
1186 } else {
1187
1/2
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✓ Branch 1 taken 851 times.
3404 infer(slice_alpha_c0_offset_div2, 0);
1188
1/2
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✓ Branch 1 taken 851 times.
3404 infer(slice_beta_offset_div2, 0);
1189 }
1190 } else {
1191
1/2
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✓ Branch 1 taken 2043 times.
8174 infer(disable_deblocking_filter_idc, 0);
1192
1/2
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✓ Branch 1 taken 2043 times.
8174 infer(slice_alpha_c0_offset_div2, 0);
1193
1/2
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✓ Branch 1 taken 2043 times.
8174 infer(slice_beta_offset_div2, 0);
1194 }
1195
1196
2/2
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✓ Branch 1 taken 6667 times.
19810 if (pps->num_slice_groups_minus1 > 0 &&
1197
2/2
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✓ Branch 1 taken 1910 times.
6476 pps->slice_group_map_type >= 3 &&
1198
2/2
✓ Branch 0 taken 628 times.
✓ Branch 1 taken 700 times.
2656 pps->slice_group_map_type <= 5) {
1199 unsigned int pic_size, max, bits;
1200
1201 1256 pic_size = (sps->pic_width_in_mbs_minus1 + 1) *
1202 1256 (sps->pic_height_in_map_units_minus1 + 1);
1203 1256 max = (pic_size + pps->slice_group_change_rate_minus1) /
1204 1256 (pps->slice_group_change_rate_minus1 + 1);
1205 1256 bits = av_ceil_log2(max + 1);
1206
1207
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 628 times.
1256 u(bits, slice_group_change_cycle, 0, max);
1208 }
1209
1210
2/2
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✓ Branch 1 taken 7426 times.
19810 if (pps->entropy_coding_mode_flag) {
1211
2/2
✓ Branch 1 taken 7907 times.
✓ Branch 2 taken 2479 times.
20772 while (byte_alignment(rw))
1212
1/2
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✓ Branch 2 taken 7907 times.
15814 fixed(1, cabac_alignment_one_bit, 1);
1213 }
1214
1215 19810 return 0;
1216 }
1217
1218 68 static int FUNC(filler)(CodedBitstreamContext *ctx, RWContext *rw,
1219 H264RawFiller *current)
1220 {
1221 int err;
1222
1223 68 HEADER("Filler Data");
1224
1225
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 34 times.
68 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
1226 1 << H264_NAL_FILLER_DATA));
1227
1228 #ifdef READ
1229
2/2
✓ Branch 1 taken 927636 times.
✓ Branch 2 taken 34 times.
1855340 while (show_bits(rw, 8) == 0xff) {
1230
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 927636 times.
1855272 fixed(8, ff_byte, 0xff);
1231 1855272 ++current->filler_size;
1232 }
1233 #else
1234 {
1235 uint32_t i;
1236 for (i = 0; i < current->filler_size; i++)
1237 fixed(8, ff_byte, 0xff);
1238 }
1239 #endif
1240
1241
2/2
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 33 times.
68 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
1242
1243 66 return 0;
1244 }
1245
1246 4 static int FUNC(end_of_sequence)(CodedBitstreamContext *ctx, RWContext *rw,
1247 H264RawNALUnitHeader *current)
1248 {
1249 4 HEADER("End of Sequence");
1250
1251 4 return FUNC(nal_unit_header)(ctx, rw, current,
1252 1 << H264_NAL_END_SEQUENCE);
1253 }
1254
1255 4 static int FUNC(end_of_stream)(CodedBitstreamContext *ctx, RWContext *rw,
1256 H264RawNALUnitHeader *current)
1257 {
1258 4 HEADER("End of Stream");
1259
1260 4 return FUNC(nal_unit_header)(ctx, rw, current,
1261 1 << H264_NAL_END_STREAM);
1262 }
1263