FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_sei_syntax_template.c
Date: 2023-10-02 11:06:47
Exec Total Coverage
Lines: 109 147 74.1%
Functions: 8 16 50.0%
Branches: 45 96 46.9%
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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 ✗ static int FUNC(filler_payload)
20 (CodedBitstreamContext *ctx, RWContext *rw,
21 SEIRawFillerPayload *current, SEIMessageState *state)
22 {
23 int err, i;
24
25 ✗ HEADER("Filler Payload");
26
27 #ifdef READ
28 ✗ current->payload_size = state->payload_size;
29 #endif
30
31 ✗ for (i = 0; i < current->payload_size; i++)
32 ✗ fixed(8, ff_byte, 0xff);
33
34 ✗ return 0;
35 }
36
37 150 static int FUNC(user_data_registered)
38 (CodedBitstreamContext *ctx, RWContext *rw,
39 SEIRawUserDataRegistered *current, SEIMessageState *state)
40 {
41 int err, i, j;
42
43 150 HEADER("User Data Registered ITU-T T.35");
44
45
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 150 u(8, itu_t_t35_country_code, 0x00, 0xff);
46
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 150 if (current->itu_t_t35_country_code != 0xff)
47 150 i = 1;
48 else {
49 ✗ u(8, itu_t_t35_country_code_extension_byte, 0x00, 0xff);
50 ✗ i = 2;
51 }
52
53 #ifdef READ
54
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 50 if (state->payload_size < i) {
55 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
56 "Invalid SEI user data registered payload.\n");
57 ✗ return AVERROR_INVALIDDATA;
58 }
59 50 current->data_length = state->payload_size - i;
60 #endif
61
62
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 150 allocate(current->data, current->data_length);
63
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 1608 for (j = 0; j < current->data_length; j++)
64
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 1458 xu(8, itu_t_t35_payload_byte[], current->data[j], 0x00, 0xff, 1, i + j);
65
66 150 return 0;
67 }
68
69 120 static int FUNC(user_data_unregistered)
70 (CodedBitstreamContext *ctx, RWContext *rw,
71 SEIRawUserDataUnregistered *current, SEIMessageState *state)
72 {
73 int err, i;
74
75 120 HEADER("User Data Unregistered");
76
77 #ifdef READ
78
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 40 if (state->payload_size < 16) {
79 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
80 "Invalid SEI user data unregistered payload.\n");
81 ✗ return AVERROR_INVALIDDATA;
82 }
83 40 current->data_length = state->payload_size - 16;
84 #endif
85
86
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 2040 for (i = 0; i < 16; i++)
87
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 1920 us(8, uuid_iso_iec_11578[i], 0x00, 0xff, 1, i);
88
89
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 120 allocate(current->data, current->data_length);
90
91
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 28878 for (i = 0; i < current->data_length; i++)
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 28758 xu(8, user_data_payload_byte[i], current->data[i], 0x00, 0xff, 1, i);
93
94 120 return 0;
95 }
96
97 6 static int FUNC(mastering_display_colour_volume)
98 (CodedBitstreamContext *ctx, RWContext *rw,
99 SEIRawMasteringDisplayColourVolume *current, SEIMessageState *state)
100 {
101 int err, c;
102
103 6 HEADER("Mastering Display Colour Volume");
104
105
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 24 for (c = 0; c < 3; c++) {
106
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 18 ubs(16, display_primaries_x[c], 1, c);
107
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 18 ubs(16, display_primaries_y[c], 1, c);
108 }
109
110
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 6 ub(16, white_point_x);
111
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 6 ub(16, white_point_y);
112
113
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 6 ub(32, max_display_mastering_luminance);
114
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 6 ub(32, min_display_mastering_luminance);
115
116 6 return 0;
117 }
118
119 ✗ static int FUNC(content_light_level_info)
120 (CodedBitstreamContext *ctx, RWContext *rw,
121 SEIRawContentLightLevelInfo *current, SEIMessageState *state)
122 {
123 int err;
124
125 ✗ HEADER("Content Light Level Information");
126
127 ✗ ub(16, max_content_light_level);
128 ✗ ub(16, max_pic_average_light_level);
129
130 ✗ return 0;
131 }
132
133 ✗ static int FUNC(alternative_transfer_characteristics)
134 (CodedBitstreamContext *ctx, RWContext *rw,
135 SEIRawAlternativeTransferCharacteristics *current,
136 SEIMessageState *state)
137 {
138 int err;
139
140 ✗ HEADER("Alternative Transfer Characteristics");
141
142 ✗ ub(8, preferred_transfer_characteristics);
143
144 ✗ return 0;
145 }
146
147 ✗ static int FUNC(ambient_viewing_environment)
148 (CodedBitstreamContext *ctx, RWContext *rw,
149 SEIRawAmbientViewingEnvironment *current,
150 SEIMessageState *state)
151 {
152 static const uint16_t max_ambient_light_value = 50000;
153 int err;
154
155 ✗ HEADER("Ambient Viewing Environment");
156
157 ✗ u(32, ambient_illuminance, 1, MAX_UINT_BITS(32));
158 ✗ u(16, ambient_light_x, 0, max_ambient_light_value);
159 ✗ u(16, ambient_light_y, 0, max_ambient_light_value);
160
161 ✗ return 0;
162 }
163
164 26808 static int FUNC(message)(CodedBitstreamContext *ctx, RWContext *rw,
165 SEIRawMessage *current)
166 {
167 const SEIMessageTypeDescriptor *desc;
168 int err, i;
169
170 26808 desc = ff_cbs_sei_find_type(ctx, current->payload_type);
171
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 26808 if (desc) {
172 26406 SEIMessageState state = {
173 26406 .payload_type = current->payload_type,
174 26406 .payload_size = current->payload_size,
175 26406 .extension_present = current->extension_bit_length > 0,
176 };
177 int start_position, current_position, bits_written;
178
179 #ifdef READ
180
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 9566 CHECK(ff_cbs_sei_alloc_message_payload(current, desc));
181 #endif
182
183 26406 start_position = bit_position(rw);
184
185
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 26406 CHECK(desc->READWRITE(ctx, rw, current->payload, &state));
186
187 26406 current_position = bit_position(rw);
188 26406 bits_written = current_position - start_position;
189
190
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 26406 if (byte_alignment(rw) || state.extension_present ||
191
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 21840 bits_written < 8 * current->payload_size) {
192 size_t bits_left;
193
194 #ifdef READ
195 2066 GetBitContext tmp = *rw;
196 int trailing_bits, trailing_zero_bits;
197
198 2066 bits_left = 8 * current->payload_size - bits_written;
199
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 2066 if (bits_left > 8)
200 ✗ skip_bits_long(&tmp, bits_left - 8);
201 2066 trailing_bits = get_bits(&tmp, FFMIN(bits_left, 8));
202
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 2066 if (trailing_bits == 0) {
203 // The trailing bits must contain a bit_equal_to_one, so
204 // they can't all be zero.
205 ✗ return AVERROR_INVALIDDATA;
206 }
207 2066 trailing_zero_bits = ff_ctz(trailing_bits);
208 2066 current->extension_bit_length =
209 2066 bits_left - 1 - trailing_zero_bits;
210 #endif
211
212
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 4566 if (current->extension_bit_length > 0) {
213 ✗ allocate(current->extension_data,
214 (current->extension_bit_length + 7) / 8);
215
216 ✗ bits_left = current->extension_bit_length;
217 ✗ for (i = 0; bits_left > 0; i++) {
218 ✗ int length = FFMIN(bits_left, 8);
219 ✗ xu(length, reserved_payload_extension_data,
220 current->extension_data[i],
221 0, MAX_UINT_BITS(length), 0);
222 ✗ bits_left -= length;
223 }
224 }
225
226
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 4566 fixed(1, bit_equal_to_one, 1);
227
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 10770 while (byte_alignment(rw))
228
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 6204 fixed(1, bit_equal_to_zero, 0);
229 }
230
231 #ifdef WRITE
232 16840 current->payload_size = (put_bits_count(rw) - start_position) / 8;
233 #endif
234 } else {
235 uint8_t *data;
236
237
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 402 allocate(current->payload, current->payload_size);
238 402 data = current->payload;
239
240
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 12468 for (i = 0; i < current->payload_size; i++)
241
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 12066 xu(8, payload_byte[i], data[i], 0, 255, 1, i);
242 }
243
244 26808 return 0;
245 }
246
247 9087 static int FUNC(message_list)(CodedBitstreamContext *ctx, RWContext *rw,
248 SEIRawMessageList *current, int prefix)
249 {
250 SEIRawMessage *message;
251 int err, k;
252
253 #ifdef READ
254 4850 for (k = 0;; k++) {
255 4850 uint32_t payload_type = 0;
256 4850 uint32_t payload_size = 0;
257 uint32_t tmp;
258 GetBitContext payload_gbc;
259
260 4870 while (show_bits(rw, 8) == 0xff) {
261 20 fixed(8, ff_byte, 0xff);
262 20 payload_type += 255;
263 }
264 4850 xu(8, last_payload_type_byte, tmp, 0, 254, 0);
265 4850 payload_type += tmp;
266
267 4869 while (show_bits(rw, 8) == 0xff) {
268 19 fixed(8, ff_byte, 0xff);
269 19 payload_size += 255;
270 }
271 4850 xu(8, last_payload_size_byte, tmp, 0, 254, 0);
272 4850 payload_size += tmp;
273
274 // There must be space remaining for both the payload and
275 // the trailing bits on the SEI NAL unit.
276 4850 if (payload_size + 1 > get_bits_left(rw) / 8) {
277 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
278 "Invalid SEI message: payload_size too large "
279 "(%"PRIu32" bytes).\n", payload_size);
280 ✗ return AVERROR_INVALIDDATA;
281 }
282 4850 CHECK(init_get_bits(&payload_gbc, rw->buffer,
283 get_bits_count(rw) + 8 * payload_size));
284 4850 skip_bits_long(&payload_gbc, get_bits_count(rw));
285
286 4850 CHECK(ff_cbs_sei_list_add(current));
287 4850 message = &current->messages[k];
288
289 4850 message->payload_type = payload_type;
290 4850 message->payload_size = payload_size;
291
292 4850 CHECK(FUNC(message)(ctx, &payload_gbc, message));
293
294 4850 skip_bits_long(rw, 8 * payload_size);
295
296 4850 if (!cbs_h2645_read_more_rbsp_data(rw))
297 4830 break;
298 }
299 #else
300 8534 for (k = 0; k < current->nb_messages; k++) {
301 PutBitContext start_state;
302 uint32_t tmp;
303 int trace, i;
304
305 4277 message = &current->messages[k];
306
307 // We write the payload twice in order to find the size. Trace
308 // output is switched off for the first write.
309 4277 trace = ctx->trace_enable;
310 4277 ctx->trace_enable = 0;
311
312 4277 start_state = *rw;
313 12831 for (i = 0; i < 2; i++) {
314 8554 *rw = start_state;
315
316 8554 tmp = message->payload_type;
317 8594 while (tmp >= 255) {
318 40 fixed(8, ff_byte, 0xff);
319 40 tmp -= 255;
320 }
321 8554 xu(8, last_payload_type_byte, tmp, 0, 254, 0);
322
323 8554 tmp = message->payload_size;
324 8592 while (tmp >= 255) {
325 38 fixed(8, ff_byte, 0xff);
326 38 tmp -= 255;
327 }
328 8554 xu(8, last_payload_size_byte, tmp, 0, 254, 0);
329
330 8554 err = FUNC(message)(ctx, rw, message);
331 8554 ctx->trace_enable = trace;
332 8554 if (err < 0)
333 ✗ return err;
334 }
335 }
336 #endif
337
338 9087 return 0;
339 }
340