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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 | #include "libavutil/avstring.h" | ||
20 | #include "libavutil/display.h" | ||
21 | #include "libavutil/common.h" | ||
22 | #include "libavutil/opt.h" | ||
23 | |||
24 | #include "bsf.h" | ||
25 | #include "bsf_internal.h" | ||
26 | #include "cbs.h" | ||
27 | #include "cbs_bsf.h" | ||
28 | #include "cbs_h264.h" | ||
29 | #include "h264.h" | ||
30 | #include "h264_levels.h" | ||
31 | #include "h264_sei.h" | ||
32 | #include "h2645data.h" | ||
33 | |||
34 | enum { | ||
35 | FLIP_HORIZONTAL = 1, | ||
36 | FLIP_VERTICAL = 2, | ||
37 | }; | ||
38 | |||
39 | enum { | ||
40 | LEVEL_UNSET = -2, | ||
41 | LEVEL_AUTO = -1, | ||
42 | }; | ||
43 | |||
44 | typedef struct H264MetadataContext { | ||
45 | CBSBSFContext common; | ||
46 | |||
47 | int done_first_au; | ||
48 | |||
49 | int aud; | ||
50 | H264RawAUD aud_nal; | ||
51 | |||
52 | AVRational sample_aspect_ratio; | ||
53 | |||
54 | int overscan_appropriate_flag; | ||
55 | |||
56 | int video_format; | ||
57 | int video_full_range_flag; | ||
58 | int colour_primaries; | ||
59 | int transfer_characteristics; | ||
60 | int matrix_coefficients; | ||
61 | |||
62 | int chroma_sample_loc_type; | ||
63 | |||
64 | AVRational tick_rate; | ||
65 | int fixed_frame_rate_flag; | ||
66 | int zero_new_constraint_set_flags; | ||
67 | |||
68 | int crop_left; | ||
69 | int crop_right; | ||
70 | int crop_top; | ||
71 | int crop_bottom; | ||
72 | |||
73 | const char *sei_user_data; | ||
74 | SEIRawUserDataUnregistered sei_user_data_payload; | ||
75 | |||
76 | int delete_filler; | ||
77 | |||
78 | int display_orientation; | ||
79 | double rotate; | ||
80 | int flip; | ||
81 | H264RawSEIDisplayOrientation display_orientation_payload; | ||
82 | |||
83 | int level; | ||
84 | } H264MetadataContext; | ||
85 | |||
86 | |||
87 | ✗ | static int h264_metadata_insert_aud(AVBSFContext *bsf, | |
88 | CodedBitstreamFragment *au) | ||
89 | { | ||
90 | ✗ | H264MetadataContext *ctx = bsf->priv_data; | |
91 | ✗ | int primary_pic_type_mask = 0xff; | |
92 | int err, i, j; | ||
93 | |||
94 | static const int primary_pic_type_table[] = { | ||
95 | 0x084, // 2, 7 | ||
96 | 0x0a5, // 0, 2, 5, 7 | ||
97 | 0x0e7, // 0, 1, 2, 5, 6, 7 | ||
98 | 0x210, // 4, 9 | ||
99 | 0x318, // 3, 4, 8, 9 | ||
100 | 0x294, // 2, 4, 7, 9 | ||
101 | 0x3bd, // 0, 2, 3, 4, 5, 7, 8, 9 | ||
102 | 0x3ff, // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 | ||
103 | }; | ||
104 | |||
105 | ✗ | for (i = 0; i < au->nb_units; i++) { | |
106 | ✗ | if (au->units[i].type == H264_NAL_SLICE || | |
107 | ✗ | au->units[i].type == H264_NAL_IDR_SLICE) { | |
108 | ✗ | H264RawSlice *slice = au->units[i].content; | |
109 | ✗ | for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) { | |
110 | ✗ | if (!(primary_pic_type_table[j] & | |
111 | ✗ | (1 << slice->header.slice_type))) | |
112 | ✗ | primary_pic_type_mask &= ~(1 << j); | |
113 | } | ||
114 | } | ||
115 | } | ||
116 | ✗ | for (j = 0; j < FF_ARRAY_ELEMS(primary_pic_type_table); j++) | |
117 | ✗ | if (primary_pic_type_mask & (1 << j)) | |
118 | ✗ | break; | |
119 | ✗ | if (j >= FF_ARRAY_ELEMS(primary_pic_type_table)) { | |
120 | ✗ | av_log(bsf, AV_LOG_ERROR, "No usable primary_pic_type: " | |
121 | "invalid slice types?\n"); | ||
122 | ✗ | return AVERROR_INVALIDDATA; | |
123 | } | ||
124 | |||
125 | ✗ | ctx->aud_nal = (H264RawAUD) { | |
126 | .nal_unit_header.nal_unit_type = H264_NAL_AUD, | ||
127 | .primary_pic_type = j, | ||
128 | }; | ||
129 | |||
130 | ✗ | err = ff_cbs_insert_unit_content(au, 0, H264_NAL_AUD, | |
131 | ✗ | &ctx->aud_nal, NULL); | |
132 | ✗ | if (err < 0) { | |
133 | ✗ | av_log(bsf, AV_LOG_ERROR, "Failed to insert AUD.\n"); | |
134 | ✗ | return err; | |
135 | } | ||
136 | |||
137 | ✗ | return 0; | |
138 | } | ||
139 | |||
140 | 42 | static int h264_metadata_update_sps(AVBSFContext *bsf, | |
141 | H264RawSPS *sps) | ||
142 | { | ||
143 | 42 | H264MetadataContext *ctx = bsf->priv_data; | |
144 | 42 | int need_vui = 0; | |
145 | int crop_unit_x, crop_unit_y; | ||
146 | |||
147 |
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42 | if (ctx->sample_aspect_ratio.num && ctx->sample_aspect_ratio.den) { |
148 | int num, den, i; | ||
149 | |||
150 | ✗ | av_reduce(&num, &den, ctx->sample_aspect_ratio.num, | |
151 | ✗ | ctx->sample_aspect_ratio.den, 65535); | |
152 | |||
153 | ✗ | for (i = 1; i < FF_ARRAY_ELEMS(ff_h2645_pixel_aspect); i++) { | |
154 | ✗ | if (num == ff_h2645_pixel_aspect[i].num && | |
155 | ✗ | den == ff_h2645_pixel_aspect[i].den) | |
156 | ✗ | break; | |
157 | } | ||
158 | ✗ | if (i == FF_ARRAY_ELEMS(ff_h2645_pixel_aspect)) { | |
159 | ✗ | sps->vui.aspect_ratio_idc = 255; | |
160 | ✗ | sps->vui.sar_width = num; | |
161 | ✗ | sps->vui.sar_height = den; | |
162 | } else { | ||
163 | ✗ | sps->vui.aspect_ratio_idc = i; | |
164 | } | ||
165 | ✗ | sps->vui.aspect_ratio_info_present_flag = 1; | |
166 | ✗ | need_vui = 1; | |
167 | } | ||
168 | |||
169 | #define SET_VUI_FIELD(field) do { \ | ||
170 | if (ctx->field >= 0) { \ | ||
171 | sps->vui.field = ctx->field; \ | ||
172 | need_vui = 1; \ | ||
173 | } \ | ||
174 | } while (0) | ||
175 | |||
176 |
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42 | if (ctx->overscan_appropriate_flag >= 0) { |
177 | ✗ | SET_VUI_FIELD(overscan_appropriate_flag); | |
178 | ✗ | sps->vui.overscan_info_present_flag = 1; | |
179 | } | ||
180 | |||
181 |
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42 | if (ctx->video_format >= 0 || |
182 |
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42 | ctx->video_full_range_flag >= 0 || |
183 |
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42 | ctx->colour_primaries >= 0 || |
184 |
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42 | ctx->transfer_characteristics >= 0 || |
185 |
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42 | ctx->matrix_coefficients >= 0) { |
186 | |||
187 | ✗ | SET_VUI_FIELD(video_format); | |
188 | |||
189 | ✗ | SET_VUI_FIELD(video_full_range_flag); | |
190 | |||
191 | ✗ | if (ctx->colour_primaries >= 0 || | |
192 | ✗ | ctx->transfer_characteristics >= 0 || | |
193 | ✗ | ctx->matrix_coefficients >= 0) { | |
194 | |||
195 | ✗ | SET_VUI_FIELD(colour_primaries); | |
196 | ✗ | SET_VUI_FIELD(transfer_characteristics); | |
197 | ✗ | SET_VUI_FIELD(matrix_coefficients); | |
198 | |||
199 | ✗ | sps->vui.colour_description_present_flag = 1; | |
200 | } | ||
201 | ✗ | sps->vui.video_signal_type_present_flag = 1; | |
202 | } | ||
203 | |||
204 |
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42 | if (ctx->chroma_sample_loc_type >= 0) { |
205 | ✗ | sps->vui.chroma_sample_loc_type_top_field = | |
206 | ✗ | ctx->chroma_sample_loc_type; | |
207 | ✗ | sps->vui.chroma_sample_loc_type_bottom_field = | |
208 | ✗ | ctx->chroma_sample_loc_type; | |
209 | ✗ | sps->vui.chroma_loc_info_present_flag = 1; | |
210 | ✗ | need_vui = 1; | |
211 | } | ||
212 | |||
213 |
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42 | if (ctx->tick_rate.num && ctx->tick_rate.den) { |
214 | int num, den; | ||
215 | |||
216 | ✗ | av_reduce(&num, &den, ctx->tick_rate.num, ctx->tick_rate.den, | |
217 | UINT32_MAX > INT_MAX ? UINT32_MAX : INT_MAX); | ||
218 | |||
219 | ✗ | sps->vui.time_scale = num; | |
220 | ✗ | sps->vui.num_units_in_tick = den; | |
221 | |||
222 | ✗ | sps->vui.timing_info_present_flag = 1; | |
223 | ✗ | need_vui = 1; | |
224 | } | ||
225 |
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42 | SET_VUI_FIELD(fixed_frame_rate_flag); |
226 |
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42 | if (ctx->zero_new_constraint_set_flags) { |
227 | ✗ | sps->constraint_set4_flag = 0; | |
228 | ✗ | sps->constraint_set5_flag = 0; | |
229 | } | ||
230 | |||
231 |
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42 | if (sps->separate_colour_plane_flag || sps->chroma_format_idc == 0) { |
232 | ✗ | crop_unit_x = 1; | |
233 | ✗ | crop_unit_y = 2 - sps->frame_mbs_only_flag; | |
234 | } else { | ||
235 |
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42 | crop_unit_x = 1 + (sps->chroma_format_idc < 3); |
236 |
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42 | crop_unit_y = (1 + (sps->chroma_format_idc < 2)) * |
237 | 42 | (2 - sps->frame_mbs_only_flag); | |
238 | } | ||
239 | #define CROP(border, unit) do { \ | ||
240 | if (ctx->crop_ ## border >= 0) { \ | ||
241 | if (ctx->crop_ ## border % unit != 0) { \ | ||
242 | av_log(bsf, AV_LOG_ERROR, "Invalid value for crop_%s: " \ | ||
243 | "must be a multiple of %d.\n", #border, unit); \ | ||
244 | return AVERROR(EINVAL); \ | ||
245 | } \ | ||
246 | sps->frame_crop_ ## border ## _offset = \ | ||
247 | ctx->crop_ ## border / unit; \ | ||
248 | sps->frame_cropping_flag = 1; \ | ||
249 | } \ | ||
250 | } while (0) | ||
251 |
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42 | CROP(left, crop_unit_x); |
252 |
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42 | CROP(right, crop_unit_x); |
253 |
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42 | CROP(top, crop_unit_y); |
254 |
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42 | CROP(bottom, crop_unit_y); |
255 | #undef CROP | ||
256 | |||
257 |
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42 | if (ctx->level != LEVEL_UNSET) { |
258 | int level_idc; | ||
259 | |||
260 | ✗ | if (ctx->level == LEVEL_AUTO) { | |
261 | const H264LevelDescriptor *desc; | ||
262 | int64_t bit_rate; | ||
263 | int width, height, dpb_frames; | ||
264 | int framerate; | ||
265 | |||
266 | ✗ | if (sps->vui.nal_hrd_parameters_present_flag) { | |
267 | ✗ | bit_rate = (sps->vui.nal_hrd_parameters.bit_rate_value_minus1[0] + 1) * | |
268 | ✗ | (INT64_C(1) << (sps->vui.nal_hrd_parameters.bit_rate_scale + 6)); | |
269 | ✗ | } else if (sps->vui.vcl_hrd_parameters_present_flag) { | |
270 | ✗ | bit_rate = (sps->vui.vcl_hrd_parameters.bit_rate_value_minus1[0] + 1) * | |
271 | ✗ | (INT64_C(1) << (sps->vui.vcl_hrd_parameters.bit_rate_scale + 6)); | |
272 | // Adjust for VCL vs. NAL limits. | ||
273 | ✗ | bit_rate = bit_rate * 6 / 5; | |
274 | } else { | ||
275 | ✗ | bit_rate = 0; | |
276 | } | ||
277 | |||
278 | // Don't use max_dec_frame_buffering if it is only inferred. | ||
279 | ✗ | dpb_frames = sps->vui.bitstream_restriction_flag ? | |
280 | ✗ | sps->vui.max_dec_frame_buffering : H264_MAX_DPB_FRAMES; | |
281 | |||
282 | ✗ | width = 16 * (sps->pic_width_in_mbs_minus1 + 1); | |
283 | ✗ | height = 16 * (sps->pic_height_in_map_units_minus1 + 1) * | |
284 | ✗ | (2 - sps->frame_mbs_only_flag); | |
285 | |||
286 | ✗ | if (sps->vui.timing_info_present_flag) | |
287 | ✗ | framerate = sps->vui.time_scale / sps->vui.num_units_in_tick / 2; | |
288 | else | ||
289 | ✗ | framerate = 0; | |
290 | |||
291 | ✗ | desc = ff_h264_guess_level(sps->profile_idc, bit_rate, framerate, | |
292 | width, height, dpb_frames); | ||
293 | ✗ | if (desc) { | |
294 | ✗ | level_idc = desc->level_idc; | |
295 | } else { | ||
296 | ✗ | av_log(bsf, AV_LOG_WARNING, "Stream does not appear to " | |
297 | "conform to any level: using level 6.2.\n"); | ||
298 | ✗ | level_idc = 62; | |
299 | } | ||
300 | } else { | ||
301 | ✗ | level_idc = ctx->level; | |
302 | } | ||
303 | |||
304 | ✗ | if (level_idc == 9) { | |
305 | ✗ | if (sps->profile_idc == 66 || | |
306 | ✗ | sps->profile_idc == 77 || | |
307 | ✗ | sps->profile_idc == 88) { | |
308 | ✗ | sps->level_idc = 11; | |
309 | ✗ | sps->constraint_set3_flag = 1; | |
310 | } else { | ||
311 | ✗ | sps->level_idc = 9; | |
312 | } | ||
313 | } else { | ||
314 | ✗ | sps->level_idc = level_idc; | |
315 | } | ||
316 | } | ||
317 | |||
318 |
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42 | if (need_vui) |
319 | ✗ | sps->vui_parameters_present_flag = 1; | |
320 | |||
321 | 42 | return 0; | |
322 | } | ||
323 | |||
324 | ✗ | static int h264_metadata_handle_display_orientation(AVBSFContext *bsf, | |
325 | AVPacket *pkt, | ||
326 | CodedBitstreamFragment *au, | ||
327 | int seek_point) | ||
328 | { | ||
329 | ✗ | H264MetadataContext *ctx = bsf->priv_data; | |
330 | SEIRawMessage *message; | ||
331 | int err; | ||
332 | |||
333 | ✗ | message = NULL; | |
334 | ✗ | while (ff_cbs_sei_find_message(ctx->common.output, au, | |
335 | SEI_TYPE_DISPLAY_ORIENTATION, | ||
336 | ✗ | &message) == 0) { | |
337 | ✗ | H264RawSEIDisplayOrientation *disp = message->payload; | |
338 | ✗ | double angle = disp->anticlockwise_rotation * 180.0 / 65536.0; | |
339 | int32_t *matrix; | ||
340 | |||
341 | ✗ | matrix = av_malloc(9 * sizeof(int32_t)); | |
342 | ✗ | if (!matrix) | |
343 | ✗ | return AVERROR(ENOMEM); | |
344 | |||
345 | /* av_display_rotation_set() expects the angle in the clockwise | ||
346 | * direction, hence the first minus. | ||
347 | * The below code applies the flips after the rotation, yet | ||
348 | * the H.2645 specs require flipping to be applied first. | ||
349 | * Because of R O(phi) = O(-phi) R (where R is flipping around | ||
350 | * an arbitatry axis and O(phi) is the proper rotation by phi) | ||
351 | * we can create display matrices as desired by negating | ||
352 | * the degree once for every flip applied. */ | ||
353 | ✗ | angle = -angle * (1 - 2 * !!disp->hor_flip) * (1 - 2 * !!disp->ver_flip); | |
354 | |||
355 | ✗ | av_display_rotation_set(matrix, angle); | |
356 | ✗ | av_display_matrix_flip(matrix, disp->hor_flip, disp->ver_flip); | |
357 | |||
358 | // If there are multiple display orientation messages in an | ||
359 | // access unit, then the last one added to the packet (i.e. | ||
360 | // the first one in the access unit) will prevail. | ||
361 | ✗ | err = av_packet_add_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, | |
362 | (uint8_t*)matrix, | ||
363 | 9 * sizeof(int32_t)); | ||
364 | ✗ | if (err < 0) { | |
365 | ✗ | av_log(bsf, AV_LOG_ERROR, "Failed to attach extracted " | |
366 | "displaymatrix side data to packet.\n"); | ||
367 | ✗ | av_free(matrix); | |
368 | ✗ | return AVERROR(ENOMEM); | |
369 | } | ||
370 | } | ||
371 | |||
372 | ✗ | if (ctx->display_orientation == BSF_ELEMENT_REMOVE || | |
373 | ✗ | ctx->display_orientation == BSF_ELEMENT_INSERT) { | |
374 | ✗ | ff_cbs_sei_delete_message_type(ctx->common.output, au, | |
375 | SEI_TYPE_DISPLAY_ORIENTATION); | ||
376 | } | ||
377 | |||
378 | ✗ | if (ctx->display_orientation == BSF_ELEMENT_INSERT) { | |
379 | ✗ | H264RawSEIDisplayOrientation *disp = | |
380 | &ctx->display_orientation_payload; | ||
381 | uint8_t *data; | ||
382 | size_t size; | ||
383 | ✗ | int write = 0; | |
384 | |||
385 | ✗ | data = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size); | |
386 | ✗ | if (data && size >= 9 * sizeof(int32_t)) { | |
387 | int32_t matrix[9]; | ||
388 | double dmatrix[9]; | ||
389 | int hflip, vflip, i; | ||
390 | double scale_x, scale_y, angle; | ||
391 | |||
392 | ✗ | memcpy(matrix, data, sizeof(matrix)); | |
393 | |||
394 | ✗ | for (i = 0; i < 9; i++) | |
395 | ✗ | dmatrix[i] = matrix[i] / 65536.0; | |
396 | |||
397 | // Extract scale factors. | ||
398 | ✗ | scale_x = hypot(dmatrix[0], dmatrix[3]); | |
399 | ✗ | scale_y = hypot(dmatrix[1], dmatrix[4]); | |
400 | |||
401 | // Select flips to make the main diagonal positive. | ||
402 | ✗ | hflip = dmatrix[0] < 0.0; | |
403 | ✗ | vflip = dmatrix[4] < 0.0; | |
404 | ✗ | if (hflip) | |
405 | ✗ | scale_x = -scale_x; | |
406 | ✗ | if (vflip) | |
407 | ✗ | scale_y = -scale_y; | |
408 | |||
409 | // Rescale. | ||
410 | ✗ | for (i = 0; i < 9; i += 3) { | |
411 | ✗ | dmatrix[i] /= scale_x; | |
412 | ✗ | dmatrix[i + 1] /= scale_y; | |
413 | } | ||
414 | |||
415 | // Extract rotation. | ||
416 | ✗ | angle = atan2(dmatrix[3], dmatrix[0]); | |
417 | |||
418 | ✗ | if (!(angle >= -M_PI && angle <= M_PI) || | |
419 | ✗ | matrix[2] != 0.0 || matrix[5] != 0.0 || | |
420 | ✗ | matrix[6] != 0.0 || matrix[7] != 0.0) { | |
421 | ✗ | av_log(bsf, AV_LOG_WARNING, "Input display matrix is not " | |
422 | "representable in H.264 parameters.\n"); | ||
423 | } else { | ||
424 | ✗ | disp->hor_flip = hflip; | |
425 | ✗ | disp->ver_flip = vflip; | |
426 | ✗ | disp->anticlockwise_rotation = | |
427 | ✗ | (uint16_t)rint((angle >= 0.0 ? angle | |
428 | ✗ | : angle + 2 * M_PI) * | |
429 | 32768.0 / M_PI); | ||
430 | ✗ | write = 1; | |
431 | } | ||
432 | } | ||
433 | |||
434 | ✗ | if (seek_point) { | |
435 | ✗ | if (!isnan(ctx->rotate)) { | |
436 | ✗ | disp->anticlockwise_rotation = | |
437 | ✗ | (uint16_t)rint((ctx->rotate >= 0.0 ? ctx->rotate | |
438 | ✗ | : ctx->rotate + 360.0) * | |
439 | 65536.0 / 360.0); | ||
440 | ✗ | write = 1; | |
441 | } | ||
442 | ✗ | if (ctx->flip) { | |
443 | ✗ | disp->hor_flip = !!(ctx->flip & FLIP_HORIZONTAL); | |
444 | ✗ | disp->ver_flip = !!(ctx->flip & FLIP_VERTICAL); | |
445 | ✗ | write = 1; | |
446 | } | ||
447 | } | ||
448 | |||
449 | ✗ | if (write) { | |
450 | ✗ | disp->display_orientation_repetition_period = 1; | |
451 | |||
452 | ✗ | err = ff_cbs_sei_add_message(ctx->common.output, au, 1, | |
453 | SEI_TYPE_DISPLAY_ORIENTATION, | ||
454 | disp, NULL); | ||
455 | ✗ | if (err < 0) { | |
456 | ✗ | av_log(bsf, AV_LOG_ERROR, "Failed to add display orientation " | |
457 | "SEI message to access unit.\n"); | ||
458 | ✗ | return err; | |
459 | } | ||
460 | } | ||
461 | } | ||
462 | |||
463 | ✗ | return 0; | |
464 | } | ||
465 | |||
466 | 2390 | static int h264_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt, | |
467 | CodedBitstreamFragment *au) | ||
468 | { | ||
469 | 2390 | H264MetadataContext *ctx = bsf->priv_data; | |
470 | int err, i, has_sps, seek_point; | ||
471 | |||
472 |
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2390 | if (ctx->aud == BSF_ELEMENT_REMOVE) { |
473 |
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216 | for (i = au->nb_units - 1; i >= 0; i--) { |
474 |
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176 | if (au->units[i].type == H264_NAL_AUD) |
475 | 39 | ff_cbs_delete_unit(au, i); | |
476 | } | ||
477 |
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2350 | } else if (ctx->aud == BSF_ELEMENT_INSERT) { |
478 | ✗ | if (pkt) { | |
479 | ✗ | err = h264_metadata_insert_aud(bsf, au); | |
480 | ✗ | if (err < 0) | |
481 | ✗ | return err; | |
482 | } | ||
483 | } | ||
484 | |||
485 | 2390 | has_sps = 0; | |
486 |
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9143 | for (i = 0; i < au->nb_units; i++) { |
487 |
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6753 | if (au->units[i].type == H264_NAL_SPS) { |
488 | 42 | err = h264_metadata_update_sps(bsf, au->units[i].content); | |
489 |
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42 | if (err < 0) |
490 | ✗ | return err; | |
491 | 42 | has_sps = 1; | |
492 | } | ||
493 | } | ||
494 | |||
495 |
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2390 | if (pkt) { |
496 | // The current packet should be treated as a seek point for metadata | ||
497 | // insertion if any of: | ||
498 | // - It is the first packet in the stream. | ||
499 | // - It contains an SPS, indicating that a sequence might start here. | ||
500 | // - It is marked as containing a key frame. | ||
501 |
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4722 | seek_point = !ctx->done_first_au || has_sps || |
502 |
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2348 | (pkt->flags & AV_PKT_FLAG_KEY); |
503 | } else { | ||
504 | 16 | seek_point = 0; | |
505 | } | ||
506 | |||
507 |
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2390 | if (ctx->sei_user_data && seek_point) { |
508 | ✗ | err = ff_cbs_sei_add_message(ctx->common.output, au, 1, | |
509 | SEI_TYPE_USER_DATA_UNREGISTERED, | ||
510 | ✗ | &ctx->sei_user_data_payload, NULL); | |
511 | ✗ | if (err < 0) { | |
512 | ✗ | av_log(bsf, AV_LOG_ERROR, "Failed to add user data SEI " | |
513 | "message to access unit.\n"); | ||
514 | ✗ | return err; | |
515 | } | ||
516 | } | ||
517 | |||
518 |
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2390 | if (ctx->delete_filler) { |
519 |
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177 | for (i = au->nb_units - 1; i >= 0; i--) { |
520 |
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137 | if (au->units[i].type == H264_NAL_FILLER_DATA) { |
521 | 33 | ff_cbs_delete_unit(au, i); | |
522 | 33 | continue; | |
523 | } | ||
524 | } | ||
525 | |||
526 | 40 | ff_cbs_sei_delete_message_type(ctx->common.output, au, | |
527 | SEI_TYPE_FILLER_PAYLOAD); | ||
528 | } | ||
529 | |||
530 |
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2390 | if (pkt && ctx->display_orientation != BSF_ELEMENT_PASS) { |
531 | ✗ | err = h264_metadata_handle_display_orientation(bsf, pkt, au, | |
532 | seek_point); | ||
533 | ✗ | if (err < 0) | |
534 | ✗ | return err; | |
535 | } | ||
536 | |||
537 |
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2390 | if (pkt) |
538 | 2374 | ctx->done_first_au = 1; | |
539 | |||
540 | 2390 | return 0; | |
541 | } | ||
542 | |||
543 | static const CBSBSFType h264_metadata_type = { | ||
544 | .codec_id = AV_CODEC_ID_H264, | ||
545 | .fragment_name = "access unit", | ||
546 | .unit_name = "NAL unit", | ||
547 | .update_fragment = &h264_metadata_update_fragment, | ||
548 | }; | ||
549 | |||
550 | 16 | static int h264_metadata_init(AVBSFContext *bsf) | |
551 | { | ||
552 | 16 | H264MetadataContext *ctx = bsf->priv_data; | |
553 | |||
554 |
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16 | if (ctx->sei_user_data) { |
555 | ✗ | SEIRawUserDataUnregistered *udu = &ctx->sei_user_data_payload; | |
556 | int i, j; | ||
557 | |||
558 | // Parse UUID. It must be a hex string of length 32, possibly | ||
559 | // containing '-'s between hex digits (which we ignore). | ||
560 | ✗ | for (i = j = 0; j < 32 && i < 64 && ctx->sei_user_data[i]; i++) { | |
561 | int c, v; | ||
562 | ✗ | c = ctx->sei_user_data[i]; | |
563 | ✗ | if (c == '-') { | |
564 | ✗ | continue; | |
565 | ✗ | } else if (av_isxdigit(c)) { | |
566 | ✗ | c = av_tolower(c); | |
567 | ✗ | v = (c <= '9' ? c - '0' : c - 'a' + 10); | |
568 | } else { | ||
569 | ✗ | break; | |
570 | } | ||
571 | ✗ | if (j & 1) | |
572 | ✗ | udu->uuid_iso_iec_11578[j / 2] |= v; | |
573 | else | ||
574 | ✗ | udu->uuid_iso_iec_11578[j / 2] = v << 4; | |
575 | ✗ | ++j; | |
576 | } | ||
577 | ✗ | if (j == 32 && ctx->sei_user_data[i] == '+') { | |
578 | ✗ | udu->data = (uint8_t*)ctx->sei_user_data + i + 1; | |
579 | ✗ | udu->data_length = strlen(udu->data) + 1; | |
580 | } else { | ||
581 | ✗ | av_log(bsf, AV_LOG_ERROR, "Invalid user data: " | |
582 | "must be \"UUID+string\".\n"); | ||
583 | ✗ | return AVERROR(EINVAL); | |
584 | } | ||
585 | } | ||
586 | |||
587 | 16 | return ff_cbs_bsf_generic_init(bsf, &h264_metadata_type); | |
588 | } | ||
589 | |||
590 | #define OFFSET(x) offsetof(H264MetadataContext, x) | ||
591 | #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM) | ||
592 | static const AVOption h264_metadata_options[] = { | ||
593 | BSF_ELEMENT_OPTIONS_PIR("aud", "Access Unit Delimiter NAL units", | ||
594 | aud, FLAGS), | ||
595 | |||
596 | { "sample_aspect_ratio", "Set sample aspect ratio (table E-1)", | ||
597 | OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, | ||
598 | { .dbl = 0.0 }, 0, 65535, FLAGS }, | ||
599 | |||
600 | { "overscan_appropriate_flag", "Set VUI overscan appropriate flag", | ||
601 | OFFSET(overscan_appropriate_flag), AV_OPT_TYPE_INT, | ||
602 | { .i64 = -1 }, -1, 1, FLAGS }, | ||
603 | |||
604 | { "video_format", "Set video format (table E-2)", | ||
605 | OFFSET(video_format), AV_OPT_TYPE_INT, | ||
606 | { .i64 = -1 }, -1, 7, FLAGS}, | ||
607 | { "video_full_range_flag", "Set video full range flag", | ||
608 | OFFSET(video_full_range_flag), AV_OPT_TYPE_INT, | ||
609 | { .i64 = -1 }, -1, 1, FLAGS }, | ||
610 | { "colour_primaries", "Set colour primaries (table E-3)", | ||
611 | OFFSET(colour_primaries), AV_OPT_TYPE_INT, | ||
612 | { .i64 = -1 }, -1, 255, FLAGS }, | ||
613 | { "transfer_characteristics", "Set transfer characteristics (table E-4)", | ||
614 | OFFSET(transfer_characteristics), AV_OPT_TYPE_INT, | ||
615 | { .i64 = -1 }, -1, 255, FLAGS }, | ||
616 | { "matrix_coefficients", "Set matrix coefficients (table E-5)", | ||
617 | OFFSET(matrix_coefficients), AV_OPT_TYPE_INT, | ||
618 | { .i64 = -1 }, -1, 255, FLAGS }, | ||
619 | |||
620 | { "chroma_sample_loc_type", "Set chroma sample location type (figure E-1)", | ||
621 | OFFSET(chroma_sample_loc_type), AV_OPT_TYPE_INT, | ||
622 | { .i64 = -1 }, -1, 5, FLAGS }, | ||
623 | |||
624 | { "tick_rate", "Set VUI tick rate (time_scale / num_units_in_tick)", | ||
625 | OFFSET(tick_rate), AV_OPT_TYPE_RATIONAL, | ||
626 | { .dbl = 0.0 }, 0, UINT_MAX, FLAGS }, | ||
627 | { "fixed_frame_rate_flag", "Set VUI fixed frame rate flag", | ||
628 | OFFSET(fixed_frame_rate_flag), AV_OPT_TYPE_INT, | ||
629 | { .i64 = -1 }, -1, 1, FLAGS }, | ||
630 | { "zero_new_constraint_set_flags", "Set constraint_set4_flag / constraint_set5_flag to zero", | ||
631 | OFFSET(zero_new_constraint_set_flags), AV_OPT_TYPE_BOOL, | ||
632 | { .i64 = 0 }, 0, 1, FLAGS }, | ||
633 | |||
634 | { "crop_left", "Set left border crop offset", | ||
635 | OFFSET(crop_left), AV_OPT_TYPE_INT, | ||
636 | { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS }, | ||
637 | { "crop_right", "Set right border crop offset", | ||
638 | OFFSET(crop_right), AV_OPT_TYPE_INT, | ||
639 | { .i64 = -1 }, -1, H264_MAX_WIDTH, FLAGS }, | ||
640 | { "crop_top", "Set top border crop offset", | ||
641 | OFFSET(crop_top), AV_OPT_TYPE_INT, | ||
642 | { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS }, | ||
643 | { "crop_bottom", "Set bottom border crop offset", | ||
644 | OFFSET(crop_bottom), AV_OPT_TYPE_INT, | ||
645 | { .i64 = -1 }, -1, H264_MAX_HEIGHT, FLAGS }, | ||
646 | |||
647 | { "sei_user_data", "Insert SEI user data (UUID+string)", | ||
648 | OFFSET(sei_user_data), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS }, | ||
649 | |||
650 | { "delete_filler", "Delete all filler (both NAL and SEI)", | ||
651 | OFFSET(delete_filler), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS}, | ||
652 | |||
653 | BSF_ELEMENT_OPTIONS_PIRE("display_orientation", | ||
654 | "Display orientation SEI", | ||
655 | display_orientation, FLAGS), | ||
656 | |||
657 | { "rotate", "Set rotation in display orientation SEI (anticlockwise angle in degrees)", | ||
658 | OFFSET(rotate), AV_OPT_TYPE_DOUBLE, | ||
659 | { .dbl = NAN }, -360.0, +360.0, FLAGS }, | ||
660 | { "flip", "Set flip in display orientation SEI", | ||
661 | OFFSET(flip), AV_OPT_TYPE_FLAGS, | ||
662 | { .i64 = 0 }, 0, FLIP_HORIZONTAL | FLIP_VERTICAL, FLAGS, "flip" }, | ||
663 | { "horizontal", "Set hor_flip", | ||
664 | 0, AV_OPT_TYPE_CONST, | ||
665 | { .i64 = FLIP_HORIZONTAL }, .flags = FLAGS, .unit = "flip" }, | ||
666 | { "vertical", "Set ver_flip", | ||
667 | 0, AV_OPT_TYPE_CONST, | ||
668 | { .i64 = FLIP_VERTICAL }, .flags = FLAGS, .unit = "flip" }, | ||
669 | |||
670 | { "level", "Set level (table A-1)", | ||
671 | OFFSET(level), AV_OPT_TYPE_INT, | ||
672 | { .i64 = LEVEL_UNSET }, LEVEL_UNSET, 0xff, FLAGS, "level" }, | ||
673 | { "auto", "Attempt to guess level from stream properties", | ||
674 | 0, AV_OPT_TYPE_CONST, | ||
675 | { .i64 = LEVEL_AUTO }, .flags = FLAGS, .unit = "level" }, | ||
676 | #define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \ | ||
677 | { .i64 = value }, .flags = FLAGS, .unit = "level" | ||
678 | { LEVEL("1", 10) }, | ||
679 | { LEVEL("1b", 9) }, | ||
680 | { LEVEL("1.1", 11) }, | ||
681 | { LEVEL("1.2", 12) }, | ||
682 | { LEVEL("1.3", 13) }, | ||
683 | { LEVEL("2", 20) }, | ||
684 | { LEVEL("2.1", 21) }, | ||
685 | { LEVEL("2.2", 22) }, | ||
686 | { LEVEL("3", 30) }, | ||
687 | { LEVEL("3.1", 31) }, | ||
688 | { LEVEL("3.2", 32) }, | ||
689 | { LEVEL("4", 40) }, | ||
690 | { LEVEL("4.1", 41) }, | ||
691 | { LEVEL("4.2", 42) }, | ||
692 | { LEVEL("5", 50) }, | ||
693 | { LEVEL("5.1", 51) }, | ||
694 | { LEVEL("5.2", 52) }, | ||
695 | { LEVEL("6", 60) }, | ||
696 | { LEVEL("6.1", 61) }, | ||
697 | { LEVEL("6.2", 62) }, | ||
698 | #undef LEVEL | ||
699 | |||
700 | { NULL } | ||
701 | }; | ||
702 | |||
703 | static const AVClass h264_metadata_class = { | ||
704 | .class_name = "h264_metadata_bsf", | ||
705 | .item_name = av_default_item_name, | ||
706 | .option = h264_metadata_options, | ||
707 | .version = LIBAVUTIL_VERSION_INT, | ||
708 | }; | ||
709 | |||
710 | static const enum AVCodecID h264_metadata_codec_ids[] = { | ||
711 | AV_CODEC_ID_H264, AV_CODEC_ID_NONE, | ||
712 | }; | ||
713 | |||
714 | const FFBitStreamFilter ff_h264_metadata_bsf = { | ||
715 | .p.name = "h264_metadata", | ||
716 | .p.codec_ids = h264_metadata_codec_ids, | ||
717 | .p.priv_class = &h264_metadata_class, | ||
718 | .priv_data_size = sizeof(H264MetadataContext), | ||
719 | .init = &h264_metadata_init, | ||
720 | .close = &ff_cbs_bsf_generic_close, | ||
721 | .filter = &ff_cbs_bsf_generic_filter, | ||
722 | }; | ||
723 |