FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_apv_syntax_template.c
Date: 2025-05-09 06:10:30
Exec Total Coverage
Lines: 166 277 59.9%
Functions: 22 36 61.1%
Branches: 76 230 33.0%
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
19 112 static int FUNC(pbu_header)(CodedBitstreamContext *ctx, RWContext *rw,
20 APVRawPBUHeader *current)
21 {
22 int err;
23
24
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 112 ub(8, pbu_type);
25
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 112 ub(16, group_id);
26
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 112 u(8, reserved_zero_8bits, 0, 0);
27
28 112 return 0;
29 }
30
31 34 static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
32 {
33 int err;
34
35
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 170 while (byte_alignment(rw) != 0)
36
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 136 fixed(1, alignment_bit_equal_to_zero, 0);
37
38 34 return 0;
39 }
40
41 56 static int FUNC(filler)(CodedBitstreamContext *ctx, RWContext *rw,
42 APVRawFiller *current)
43 {
44 int err;
45
46 #ifdef READ
47 44 current->filler_size = 0;
48
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 44 while (show_bits(rw, 8) == 0xff) {
49 ✗ fixed(8, ff_byte, 0xff);
50 ✗ ++current->filler_size;
51 }
52 #else
53 {
54 uint32_t i;
55
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 12 for (i = 0; i < current->filler_size; i++)
56 ✗ fixed(8, ff_byte, 0xff);
57 }
58 #endif
59
60 56 return 0;
61 }
62
63 34 static int FUNC(frame_info)(CodedBitstreamContext *ctx, RWContext *rw,
64 APVRawFrameInfo *current)
65 {
66 int err;
67
68
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 34 ub(8, profile_idc);
69
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 34 ub(8, level_idc);
70
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 34 ub(3, band_idc);
71
72
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 34 u(5, reserved_zero_5bits, 0, 0);
73
74
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 34 ub(24, frame_width);
75
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 34 ub(24, frame_height);
76
77
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 34 u(4, chroma_format_idc, 0, 4);
78
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 34 if (current->chroma_format_idc == 1) {
79 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR,
80 "chroma_format_idc 1 for 4:2:0 is not allowed in APV.\n");
81 ✗ return AVERROR_INVALIDDATA;
82 }
83
84
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 34 u(4, bit_depth_minus8, 2, 8);
85
86
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 34 ub(8, capture_time_distance);
87
88
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 34 u(8, reserved_zero_8bits, 0, 0);
89
90 34 return 0;
91 }
92
93 ✗ static int FUNC(quantization_matrix)(CodedBitstreamContext *ctx,
94 RWContext *rw,
95 APVRawQuantizationMatrix *current)
96 {
97 ✗ const CodedBitstreamAPVContext *priv = ctx->priv_data;
98 int err;
99
100 ✗ for (int c = 0; c < priv->num_comp; c++) {
101 ✗ for (int y = 0; y < 8; y++) {
102 ✗ for (int x = 0; x < 8 ; x++) {
103 ✗ us(8, q_matrix[c][x][y], 1, 255, 3, c, x, y);
104 }
105 }
106 }
107
108 ✗ return 0;
109 }
110
111 34 static int FUNC(tile_info)(CodedBitstreamContext *ctx, RWContext *rw,
112 APVRawTileInfo *current,
113 const APVRawFrameHeader *fh)
114 {
115 34 CodedBitstreamAPVContext *priv = ctx->priv_data;
116 34 int frame_width_in_mbs = (fh->frame_info.frame_width + 15) / 16;
117 34 int frame_height_in_mbs = (fh->frame_info.frame_height + 15) / 16;
118
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 34 uint32_t min_tile_width = FFMAX(APV_MIN_TILE_WIDTH_IN_MBS,
119 (frame_width_in_mbs + APV_MAX_TILE_COLS - 1) /
120 APV_MAX_TILE_COLS);
121
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 34 uint32_t min_tile_height = FFMAX(APV_MIN_TILE_HEIGHT_IN_MBS,
122 (frame_height_in_mbs + APV_MAX_TILE_ROWS - 1) /
123 APV_MAX_TILE_ROWS);
124 int err;
125
126
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 34 u(20, tile_width_in_mbs, min_tile_width, MAX_UINT_BITS(20));
127
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 34 u(20, tile_height_in_mbs, min_tile_height, MAX_UINT_BITS(20));
128
129
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 34 ub(1, tile_size_present_in_fh_flag);
130
131 34 cbs_apv_derive_tile_info(&priv->tile_info, fh);
132
133
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 34 if (current->tile_size_present_in_fh_flag) {
134 ✗ for (int t = 0; t < priv->tile_info.num_tiles; t++) {
135 ✗ us(32, tile_size_in_fh[t], 10, MAX_UINT_BITS(32), 1, t);
136 }
137 }
138
139 34 return 0;
140 }
141
142 34 static int FUNC(frame_header)(CodedBitstreamContext *ctx, RWContext *rw,
143 APVRawFrameHeader *current)
144 {
145 34 CodedBitstreamAPVContext *priv = ctx->priv_data;
146 int err;
147
148
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 34 CHECK(FUNC(frame_info)(ctx, rw, &current->frame_info));
149
150
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 34 u(8, reserved_zero_8bits, 0, 0);
151
152
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 34 ub(1, color_description_present_flag);
153
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 34 if (current->color_description_present_flag) {
154
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 34 ub(8, color_primaries);
155
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 34 ub(8, transfer_characteristics);
156
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 34 ub(8, matrix_coefficients);
157
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 34 ub(1, full_range_flag);
158 } else {
159 ✗ infer(color_primaries, 2);
160 ✗ infer(transfer_characteristics, 2);
161 ✗ infer(matrix_coefficients, 2);
162 ✗ infer(full_range_flag, 0);
163 }
164
165 34 priv->bit_depth = current->frame_info.bit_depth_minus8 + 8;
166 34 priv->num_comp = cbs_apv_get_num_comp(current);
167
168
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 34 ub(1, use_q_matrix);
169
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 34 if (current->use_q_matrix) {
170 ✗ CHECK(FUNC(quantization_matrix)(ctx, rw,
171 &current->quantization_matrix));
172 } else {
173
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 136 for (int c = 0; c < priv->num_comp; c++) {
174
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 918 for (int y = 0; y < 8; y++) {
175
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 7344 for (int x = 0; x < 8 ; x++) {
176
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 6528 infer(quantization_matrix.q_matrix[c][y][x], 16);
177 }
178 }
179 }
180 }
181
182
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 34 CHECK(FUNC(tile_info)(ctx, rw, &current->tile_info, current));
183
184
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 34 u(8, reserved_zero_8bits_2, 0, 0);
185
186
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 34 CHECK(FUNC(byte_alignment)(ctx, rw));
187
188 34 return 0;
189 }
190
191 68 static int FUNC(tile_header)(CodedBitstreamContext *ctx, RWContext *rw,
192 APVRawTileHeader *current,
193 int tile_idx, uint32_t tile_size)
194 {
195 68 const CodedBitstreamAPVContext *priv = ctx->priv_data;
196 uint16_t expected_tile_header_size;
197 uint32_t tile_size_remaining;
198 uint8_t max_qp;
199 int err;
200
201 68 expected_tile_header_size = 4 + priv->num_comp * (4 + 1) + 1;
202
203
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 68 u(16, tile_header_size,
204 expected_tile_header_size, expected_tile_header_size);
205
206
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 68 u(16, tile_index, tile_idx, tile_idx);
207
208 68 tile_size_remaining = tile_size - current->tile_header_size;
209
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 272 for (int c = 0; c < priv->num_comp; c++) {
210
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 204 us(32, tile_data_size[c], 1, tile_size_remaining, 1, c);
211 204 tile_size_remaining -= current->tile_data_size[c];
212 }
213
214 68 max_qp = 3 + priv->bit_depth * 6;
215
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 272 for (int c = 0; c < priv->num_comp; c++) {
216
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 204 us(8, tile_qp[c], 0, max_qp, 1, c);
217 }
218
219
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 68 u(8, reserved_zero_8bits, 0, 0);
220
221 68 return 0;
222 }
223
224 68 static int FUNC(tile)(CodedBitstreamContext *ctx, RWContext *rw,
225 APVRawTile *current,
226 int tile_idx, uint32_t tile_size)
227 {
228 68 const CodedBitstreamAPVContext *priv = ctx->priv_data;
229 int err;
230
231
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 68 CHECK(FUNC(tile_header)(ctx, rw, &current->tile_header,
232 tile_idx, tile_size));
233
234
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 272 for (int c = 0; c < priv->num_comp; c++) {
235 204 uint32_t comp_size = current->tile_header.tile_data_size[c];
236 #ifdef READ
237 168 int pos = get_bits_count(rw);
238
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 168 av_assert0(pos % 8 == 0);
239 168 current->tile_data[c] = (uint8_t*)align_get_bits(rw);
240 168 skip_bits_long(rw, 8 * comp_size);
241 #else
242
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 36 if (put_bytes_left(rw, 0) < comp_size)
243 ✗ return AVERROR(ENOSPC);
244 36 ff_copy_bits(rw, current->tile_data[c], comp_size * 8);
245 #endif
246 }
247
248 68 return 0;
249 }
250
251 34 static int FUNC(frame)(CodedBitstreamContext *ctx, RWContext *rw,
252 APVRawFrame *current)
253 {
254 34 const CodedBitstreamAPVContext *priv = ctx->priv_data;
255 int err;
256
257 34 HEADER("Frame");
258
259
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 34 CHECK(FUNC(pbu_header)(ctx, rw, &current->pbu_header));
260
261
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 34 CHECK(FUNC(frame_header)(ctx, rw, &current->frame_header));
262
263
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 102 for (int t = 0; t < priv->tile_info.num_tiles; t++) {
264
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 68 us(32, tile_size[t], 10, MAX_UINT_BITS(32), 1, t);
265
266
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 68 CHECK(FUNC(tile)(ctx, rw, &current->tile[t],
267 t, current->tile_size[t]));
268 }
269
270
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 34 CHECK(FUNC(filler)(ctx, rw, &current->filler));
271
272 34 return 0;
273 }
274
275 ✗ static int FUNC(au_info)(CodedBitstreamContext *ctx, RWContext *rw,
276 APVRawAUInfo *current)
277 {
278 int err;
279
280 ✗ HEADER("Access Unit Information");
281
282 ✗ u(16, num_frames, 1, CBS_APV_MAX_AU_FRAMES);
283
284 ✗ for (int i = 0; i < current->num_frames; i++) {
285 ✗ ubs(8, pbu_type[i], 1, i);
286 ✗ ubs(8, group_id[i], 1, i);
287
288 ✗ us(8, reserved_zero_8bits[i], 0, 0, 1, i);
289
290 ✗ CHECK(FUNC(frame_info)(ctx, rw, &current->frame_info[i]));
291 }
292
293 ✗ u(8, reserved_zero_8bits_2, 0, 0);
294
295 ✗ return 0;
296 }
297
298 ✗ static int FUNC(metadata_itu_t_t35)(CodedBitstreamContext *ctx,
299 RWContext *rw,
300 APVRawMetadataITUTT35 *current,
301 size_t payload_size)
302 {
303 int err;
304 ✗ size_t read_size = payload_size - 1;
305
306 ✗ HEADER("ITU-T T.35 Metadata");
307
308 ✗ ub(8, itu_t_t35_country_code);
309
310 ✗ if (current->itu_t_t35_country_code == 0xff) {
311 ✗ ub(8, itu_t_t35_country_code_extension);
312 ✗ --read_size;
313 }
314
315 #ifdef READ
316 ✗ current->data_size = read_size;
317 ✗ current->data_ref = av_buffer_alloc(current->data_size);
318 ✗ if (!current->data_ref)
319 ✗ return AVERROR(ENOMEM);
320 ✗ current->data = current->data_ref->data;
321 #else
322 ✗ if (current->data_size != read_size) {
323 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write size mismatch: "
324 "payload %zu but expecting %zu\n",
325 current->data_size, read_size);
326 ✗ return AVERROR(EINVAL);
327 }
328 #endif
329
330 ✗ for (size_t i = 0; i < current->data_size; i++) {
331 ✗ xu(8, itu_t_t35_payload[i],
332 current->data[i], 0x00, 0xff, 1, i);
333 }
334
335 ✗ return 0;
336 }
337
338 ✗ static int FUNC(metadata_mdcv)(CodedBitstreamContext *ctx,
339 RWContext *rw,
340 APVRawMetadataMDCV *current)
341 {
342 int err, i;
343
344 ✗ HEADER("MDCV Metadata");
345
346 ✗ for (i = 0; i < 3; i++) {
347 ✗ ubs(16, primary_chromaticity_x[i], 1, i);
348 ✗ ubs(16, primary_chromaticity_y[i], 1, i);
349 }
350
351 ✗ ub(16, white_point_chromaticity_x);
352 ✗ ub(16, white_point_chromaticity_y);
353
354 ✗ ub(32, max_mastering_luminance);
355 ✗ ub(32, min_mastering_luminance);
356
357 ✗ return 0;
358 }
359
360 ✗ static int FUNC(metadata_cll)(CodedBitstreamContext *ctx,
361 RWContext *rw,
362 APVRawMetadataCLL *current)
363 {
364 int err;
365
366 ✗ HEADER("CLL Metadata");
367
368 ✗ ub(16, max_cll);
369 ✗ ub(16, max_fall);
370
371 ✗ return 0;
372 }
373
374 ✗ static int FUNC(metadata_filler)(CodedBitstreamContext *ctx,
375 RWContext *rw,
376 APVRawMetadataFiller *current,
377 size_t payload_size)
378 {
379 int err;
380
381 ✗ HEADER("Filler Metadata");
382
383 ✗ for (size_t i = 0; i < payload_size; i++)
384 ✗ fixed(8, ff_byte, 0xff);
385
386 ✗ return 0;
387 }
388
389 56 static int FUNC(metadata_user_defined)(CodedBitstreamContext *ctx,
390 RWContext *rw,
391 APVRawMetadataUserDefined *current,
392 size_t payload_size)
393 {
394 int err;
395
396 56 HEADER("User-Defined Metadata");
397
398
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 952 for (int i = 0; i < 16; i++)
399
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 896 ubs(8, uuid[i], 1, i);
400
401 #ifdef READ
402 32 current->data_size = payload_size - 16;
403 32 current->data_ref = av_buffer_alloc(current->data_size);
404
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 32 if (!current->data_ref)
405 ✗ return AVERROR(ENOMEM);
406 32 current->data = current->data_ref->data;
407 #else
408
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 24 if (current->data_size != payload_size - 16) {
409 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write size mismatch: "
410 "payload %zu but expecting %zu\n",
411 current->data_size, payload_size - 16);
412 ✗ return AVERROR(EINVAL);
413 }
414 #endif
415
416
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 2268 for (size_t i = 0; i < current->data_size; i++) {
417
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 2212 xu(8, user_defined_data_payload[i],
418 current->data[i], 0x00, 0xff, 1, i);
419 }
420
421 56 return 0;
422 }
423
424 ✗ static int FUNC(metadata_undefined)(CodedBitstreamContext *ctx,
425 RWContext *rw,
426 APVRawMetadataUndefined *current,
427 size_t payload_size)
428 {
429 int err;
430
431 ✗ HEADER("Undefined Metadata");
432
433 #ifdef READ
434 ✗ current->data_size = payload_size;
435 ✗ current->data_ref = av_buffer_alloc(current->data_size);
436 ✗ if (!current->data_ref)
437 ✗ return AVERROR(ENOMEM);
438 ✗ current->data = current->data_ref->data;
439 #else
440 ✗ if (current->data_size != payload_size) {
441 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write size mismatch: "
442 "payload %zu but expecting %zu\n",
443 current->data_size, payload_size - 16);
444 ✗ return AVERROR(EINVAL);
445 }
446 #endif
447
448 ✗ for (size_t i = 0; i < current->data_size; i++) {
449 ✗ xu(8, undefined_metadata_payload_byte[i],
450 current->data[i], 0x00, 0xff, 1, i);
451 }
452
453 ✗ return 0;
454 }
455
456 56 static int FUNC(metadata_payload)(CodedBitstreamContext *ctx,
457 RWContext *rw,
458 APVRawMetadataPayload *current)
459 {
460 int err;
461
462
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 56 switch (current->payload_type) {
463 ✗ case APV_METADATA_ITU_T_T35:
464 ✗ CHECK(FUNC(metadata_itu_t_t35)(ctx, rw,
465 &current->itu_t_t35,
466 current->payload_size));
467 ✗ break;
468 ✗ case APV_METADATA_MDCV:
469 ✗ CHECK(FUNC(metadata_mdcv)(ctx, rw, &current->mdcv));
470 ✗ break;
471 ✗ case APV_METADATA_CLL:
472 ✗ CHECK(FUNC(metadata_cll)(ctx, rw, &current->cll));
473 ✗ break;
474 ✗ case APV_METADATA_FILLER:
475 ✗ CHECK(FUNC(metadata_filler)(ctx, rw,
476 &current->filler,
477 current->payload_size));
478 ✗ break;
479 56 case APV_METADATA_USER_DEFINED:
480
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 56 CHECK(FUNC(metadata_user_defined)(ctx, rw,
481 &current->user_defined,
482 current->payload_size));
483 56 break;
484 ✗ default:
485 ✗ CHECK(FUNC(metadata_undefined)(ctx, rw,
486 &current->undefined,
487 current->payload_size));
488 }
489
490 56 return 0;
491 }
492
493 11 static int FUNC(metadata)(CodedBitstreamContext *ctx, RWContext *rw,
494 APVRawMetadata *current)
495 {
496 int err;
497
498 #ifdef READ
499 uint32_t metadata_bytes_left;
500 #else
501 PutBitContext metadata_start_state;
502 uint32_t metadata_start_position;
503 int trace;
504 #endif
505
506 11 HEADER("Metadata");
507
508 11 CHECK(FUNC(pbu_header)(ctx, rw, &current->pbu_header));
509
510 #ifdef READ
511 8 ub(32, metadata_size);
512
513 8 metadata_bytes_left = current->metadata_size;
514
515 16 for (int p = 0; p < CBS_APV_MAX_METADATA_PAYLOADS; p++) {
516 16 APVRawMetadataPayload *pl = &current->payloads[p];
517 uint32_t tmp;
518
519 16 pl->payload_type = 0;
520 16 while (show_bits(rw, 8) == 0xff) {
521 ✗ fixed(8, ff_byte, 0xff);
522 ✗ pl->payload_type += 255;
523 ✗ --metadata_bytes_left;
524 }
525 16 xu(8, metadata_payload_type, tmp, 0, 254, 0);
526 16 pl->payload_type += tmp;
527 16 --metadata_bytes_left;
528
529 16 pl->payload_size = 0;
530 16 while (show_bits(rw, 8) == 0xff) {
531 ✗ fixed(8, ff_byte, 0xff);
532 ✗ pl->payload_size += 255;
533 ✗ --metadata_bytes_left;
534 }
535 16 xu(8, metadata_payload_size, tmp, 0, 254, 0);
536 16 pl->payload_size += tmp;
537 16 --metadata_bytes_left;
538
539 16 if (pl->payload_size > metadata_bytes_left) {
540 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid metadata: "
541 "payload_size larger than remaining metadata size "
542 "(%"PRIu32" bytes).\n", pl->payload_size);
543 ✗ return AVERROR_INVALIDDATA;
544 }
545
546 16 CHECK(FUNC(metadata_payload)(ctx, rw, pl));
547
548 16 metadata_bytes_left -= pl->payload_size;
549
550 16 current->metadata_count = p + 1;
551 16 if (metadata_bytes_left == 0)
552 8 break;
553 }
554 #else
555 // Two passes: the first write finds the size (with tracing
556 // disabled), the second write does the real write.
557
558 3 metadata_start_state = *rw;
559 3 metadata_start_position = put_bits_count(rw);
560
561 3 trace = ctx->trace_enable;
562 3 ctx->trace_enable = 0;
563
564 9 for (int pass = 1; pass <= 2; pass++) {
565 6 *rw = metadata_start_state;
566
567 6 ub(32, metadata_size);
568
569 18 for (int p = 0; p < current->metadata_count; p++) {
570 12 APVRawMetadataPayload *pl = &current->payloads[p];
571 uint32_t payload_start_position;
572 uint32_t tmp;
573
574 12 tmp = pl->payload_type;
575 12 while (tmp >= 255) {
576 ✗ fixed(8, ff_byte, 0xff);
577 ✗ tmp -= 255;
578 }
579 12 xu(8, metadata_payload_type, tmp, 0, 254, 0);
580
581 12 tmp = pl->payload_size;
582 12 while (tmp >= 255) {
583 ✗ fixed(8, ff_byte, 0xff);
584 ✗ tmp -= 255;
585 }
586 12 xu(8, metadata_payload_size, tmp, 0, 254, 0);
587
588 12 payload_start_position = put_bits_count(rw);
589
590 12 err = FUNC(metadata_payload)(ctx, rw, pl);
591 12 ctx->trace_enable = trace;
592 12 if (err < 0)
593 ✗ return err;
594
595 12 if (pass == 1) {
596 6 pl->payload_size = (put_bits_count(rw) -
597 6 payload_start_position) / 8;
598 }
599 }
600
601 6 if (pass == 1) {
602 3 current->metadata_size = (put_bits_count(rw) -
603 3 metadata_start_position) / 8 - 4;
604 3 ctx->trace_enable = trace;
605 }
606 }
607 #endif
608
609 11 CHECK(FUNC(filler)(ctx, rw, &current->filler));
610
611 11 return 0;
612 }
613