FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/format.c
Date: 2025-07-01 21:35:40
Exec Total Coverage
Lines: 156 176 88.6%
Functions: 15 16 93.8%
Branches: 76 115 66.1%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2024 Niklas Haas
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/avassert.h"
22 #include "libavutil/hdr_dynamic_metadata.h"
23 #include "libavutil/mastering_display_metadata.h"
24
25 #include "format.h"
26
27 typedef struct FormatEntry {
28 uint8_t is_supported_in :1;
29 uint8_t is_supported_out :1;
30 uint8_t is_supported_endianness :1;
31 } FormatEntry;
32
33 /* Format support table for legacy swscale */
34 static const FormatEntry format_entries[] = {
35 [AV_PIX_FMT_YUV420P] = { 1, 1 },
36 [AV_PIX_FMT_YUYV422] = { 1, 1 },
37 [AV_PIX_FMT_RGB24] = { 1, 1 },
38 [AV_PIX_FMT_BGR24] = { 1, 1 },
39 [AV_PIX_FMT_YUV422P] = { 1, 1 },
40 [AV_PIX_FMT_YUV444P] = { 1, 1 },
41 [AV_PIX_FMT_YUV410P] = { 1, 1 },
42 [AV_PIX_FMT_YUV411P] = { 1, 1 },
43 [AV_PIX_FMT_GRAY8] = { 1, 1 },
44 [AV_PIX_FMT_MONOWHITE] = { 1, 1 },
45 [AV_PIX_FMT_MONOBLACK] = { 1, 1 },
46 [AV_PIX_FMT_PAL8] = { 1, 0 },
47 [AV_PIX_FMT_YUVJ420P] = { 1, 1 },
48 [AV_PIX_FMT_YUVJ411P] = { 1, 1 },
49 [AV_PIX_FMT_YUVJ422P] = { 1, 1 },
50 [AV_PIX_FMT_YUVJ444P] = { 1, 1 },
51 [AV_PIX_FMT_YVYU422] = { 1, 1 },
52 [AV_PIX_FMT_UYVY422] = { 1, 1 },
53 [AV_PIX_FMT_UYYVYY411] = { 1, 0 },
54 [AV_PIX_FMT_BGR8] = { 1, 1 },
55 [AV_PIX_FMT_BGR4] = { 0, 1 },
56 [AV_PIX_FMT_BGR4_BYTE] = { 1, 1 },
57 [AV_PIX_FMT_RGB8] = { 1, 1 },
58 [AV_PIX_FMT_RGB4] = { 0, 1 },
59 [AV_PIX_FMT_RGB4_BYTE] = { 1, 1 },
60 [AV_PIX_FMT_NV12] = { 1, 1 },
61 [AV_PIX_FMT_NV21] = { 1, 1 },
62 [AV_PIX_FMT_ARGB] = { 1, 1 },
63 [AV_PIX_FMT_RGBA] = { 1, 1 },
64 [AV_PIX_FMT_ABGR] = { 1, 1 },
65 [AV_PIX_FMT_BGRA] = { 1, 1 },
66 [AV_PIX_FMT_0RGB] = { 1, 1 },
67 [AV_PIX_FMT_RGB0] = { 1, 1 },
68 [AV_PIX_FMT_0BGR] = { 1, 1 },
69 [AV_PIX_FMT_BGR0] = { 1, 1 },
70 [AV_PIX_FMT_GRAY9BE] = { 1, 1 },
71 [AV_PIX_FMT_GRAY9LE] = { 1, 1 },
72 [AV_PIX_FMT_GRAY10BE] = { 1, 1 },
73 [AV_PIX_FMT_GRAY10LE] = { 1, 1 },
74 [AV_PIX_FMT_GRAY12BE] = { 1, 1 },
75 [AV_PIX_FMT_GRAY12LE] = { 1, 1 },
76 [AV_PIX_FMT_GRAY14BE] = { 1, 1 },
77 [AV_PIX_FMT_GRAY14LE] = { 1, 1 },
78 [AV_PIX_FMT_GRAY16BE] = { 1, 1 },
79 [AV_PIX_FMT_GRAY16LE] = { 1, 1 },
80 [AV_PIX_FMT_YUV440P] = { 1, 1 },
81 [AV_PIX_FMT_YUVJ440P] = { 1, 1 },
82 [AV_PIX_FMT_YUV440P10LE] = { 1, 1 },
83 [AV_PIX_FMT_YUV440P10BE] = { 1, 1 },
84 [AV_PIX_FMT_YUV440P12LE] = { 1, 1 },
85 [AV_PIX_FMT_YUV440P12BE] = { 1, 1 },
86 [AV_PIX_FMT_YUVA420P] = { 1, 1 },
87 [AV_PIX_FMT_YUVA422P] = { 1, 1 },
88 [AV_PIX_FMT_YUVA444P] = { 1, 1 },
89 [AV_PIX_FMT_YUVA420P9BE] = { 1, 1 },
90 [AV_PIX_FMT_YUVA420P9LE] = { 1, 1 },
91 [AV_PIX_FMT_YUVA422P9BE] = { 1, 1 },
92 [AV_PIX_FMT_YUVA422P9LE] = { 1, 1 },
93 [AV_PIX_FMT_YUVA444P9BE] = { 1, 1 },
94 [AV_PIX_FMT_YUVA444P9LE] = { 1, 1 },
95 [AV_PIX_FMT_YUVA420P10BE] = { 1, 1 },
96 [AV_PIX_FMT_YUVA420P10LE] = { 1, 1 },
97 [AV_PIX_FMT_YUVA422P10BE] = { 1, 1 },
98 [AV_PIX_FMT_YUVA422P10LE] = { 1, 1 },
99 [AV_PIX_FMT_YUVA444P10BE] = { 1, 1 },
100 [AV_PIX_FMT_YUVA444P10LE] = { 1, 1 },
101 [AV_PIX_FMT_YUVA420P16BE] = { 1, 1 },
102 [AV_PIX_FMT_YUVA420P16LE] = { 1, 1 },
103 [AV_PIX_FMT_YUVA422P16BE] = { 1, 1 },
104 [AV_PIX_FMT_YUVA422P16LE] = { 1, 1 },
105 [AV_PIX_FMT_YUVA444P16BE] = { 1, 1 },
106 [AV_PIX_FMT_YUVA444P16LE] = { 1, 1 },
107 [AV_PIX_FMT_RGB48BE] = { 1, 1 },
108 [AV_PIX_FMT_RGB48LE] = { 1, 1 },
109 [AV_PIX_FMT_RGBA64BE] = { 1, 1, 1 },
110 [AV_PIX_FMT_RGBA64LE] = { 1, 1, 1 },
111 [AV_PIX_FMT_RGB565BE] = { 1, 1 },
112 [AV_PIX_FMT_RGB565LE] = { 1, 1 },
113 [AV_PIX_FMT_RGB555BE] = { 1, 1 },
114 [AV_PIX_FMT_RGB555LE] = { 1, 1 },
115 [AV_PIX_FMT_BGR565BE] = { 1, 1 },
116 [AV_PIX_FMT_BGR565LE] = { 1, 1 },
117 [AV_PIX_FMT_BGR555BE] = { 1, 1 },
118 [AV_PIX_FMT_BGR555LE] = { 1, 1 },
119 [AV_PIX_FMT_YUV420P16LE] = { 1, 1 },
120 [AV_PIX_FMT_YUV420P16BE] = { 1, 1 },
121 [AV_PIX_FMT_YUV422P16LE] = { 1, 1 },
122 [AV_PIX_FMT_YUV422P16BE] = { 1, 1 },
123 [AV_PIX_FMT_YUV444P16LE] = { 1, 1 },
124 [AV_PIX_FMT_YUV444P16BE] = { 1, 1 },
125 [AV_PIX_FMT_RGB444LE] = { 1, 1 },
126 [AV_PIX_FMT_RGB444BE] = { 1, 1 },
127 [AV_PIX_FMT_BGR444LE] = { 1, 1 },
128 [AV_PIX_FMT_BGR444BE] = { 1, 1 },
129 [AV_PIX_FMT_YA8] = { 1, 1 },
130 [AV_PIX_FMT_YA16BE] = { 1, 1 },
131 [AV_PIX_FMT_YA16LE] = { 1, 1 },
132 [AV_PIX_FMT_BGR48BE] = { 1, 1 },
133 [AV_PIX_FMT_BGR48LE] = { 1, 1 },
134 [AV_PIX_FMT_BGRA64BE] = { 1, 1, 1 },
135 [AV_PIX_FMT_BGRA64LE] = { 1, 1, 1 },
136 [AV_PIX_FMT_YUV420P9BE] = { 1, 1 },
137 [AV_PIX_FMT_YUV420P9LE] = { 1, 1 },
138 [AV_PIX_FMT_YUV420P10BE] = { 1, 1 },
139 [AV_PIX_FMT_YUV420P10LE] = { 1, 1 },
140 [AV_PIX_FMT_YUV420P12BE] = { 1, 1 },
141 [AV_PIX_FMT_YUV420P12LE] = { 1, 1 },
142 [AV_PIX_FMT_YUV420P14BE] = { 1, 1 },
143 [AV_PIX_FMT_YUV420P14LE] = { 1, 1 },
144 [AV_PIX_FMT_YUV422P9BE] = { 1, 1 },
145 [AV_PIX_FMT_YUV422P9LE] = { 1, 1 },
146 [AV_PIX_FMT_YUV422P10BE] = { 1, 1 },
147 [AV_PIX_FMT_YUV422P10LE] = { 1, 1 },
148 [AV_PIX_FMT_YUV422P12BE] = { 1, 1 },
149 [AV_PIX_FMT_YUV422P12LE] = { 1, 1 },
150 [AV_PIX_FMT_YUV422P14BE] = { 1, 1 },
151 [AV_PIX_FMT_YUV422P14LE] = { 1, 1 },
152 [AV_PIX_FMT_YUV444P9BE] = { 1, 1 },
153 [AV_PIX_FMT_YUV444P9LE] = { 1, 1 },
154 [AV_PIX_FMT_YUV444P10BE] = { 1, 1 },
155 [AV_PIX_FMT_YUV444P10LE] = { 1, 1 },
156 [AV_PIX_FMT_YUV444P12BE] = { 1, 1 },
157 [AV_PIX_FMT_YUV444P12LE] = { 1, 1 },
158 [AV_PIX_FMT_YUV444P14BE] = { 1, 1 },
159 [AV_PIX_FMT_YUV444P14LE] = { 1, 1 },
160 [AV_PIX_FMT_GBRP] = { 1, 1 },
161 [AV_PIX_FMT_GBRP9LE] = { 1, 1 },
162 [AV_PIX_FMT_GBRP9BE] = { 1, 1 },
163 [AV_PIX_FMT_GBRP10LE] = { 1, 1 },
164 [AV_PIX_FMT_GBRP10BE] = { 1, 1 },
165 [AV_PIX_FMT_GBRAP10LE] = { 1, 1 },
166 [AV_PIX_FMT_GBRAP10BE] = { 1, 1 },
167 [AV_PIX_FMT_GBRP12LE] = { 1, 1 },
168 [AV_PIX_FMT_GBRP12BE] = { 1, 1 },
169 [AV_PIX_FMT_GBRAP12LE] = { 1, 1 },
170 [AV_PIX_FMT_GBRAP12BE] = { 1, 1 },
171 [AV_PIX_FMT_GBRP14LE] = { 1, 1 },
172 [AV_PIX_FMT_GBRP14BE] = { 1, 1 },
173 [AV_PIX_FMT_GBRAP14LE] = { 1, 1 },
174 [AV_PIX_FMT_GBRAP14BE] = { 1, 1 },
175 [AV_PIX_FMT_GBRP16LE] = { 1, 1 },
176 [AV_PIX_FMT_GBRP16BE] = { 1, 1 },
177 [AV_PIX_FMT_GBRPF32LE] = { 1, 1 },
178 [AV_PIX_FMT_GBRPF32BE] = { 1, 1 },
179 [AV_PIX_FMT_GBRAPF32LE] = { 1, 1 },
180 [AV_PIX_FMT_GBRAPF32BE] = { 1, 1 },
181 [AV_PIX_FMT_GBRPF16LE] = { 1, 0 },
182 [AV_PIX_FMT_GBRPF16BE] = { 1, 0 },
183 [AV_PIX_FMT_GBRAPF16LE] = { 1, 0 },
184 [AV_PIX_FMT_GBRAPF16BE] = { 1, 0 },
185 [AV_PIX_FMT_GBRAP] = { 1, 1 },
186 [AV_PIX_FMT_GBRAP16LE] = { 1, 1 },
187 [AV_PIX_FMT_GBRAP16BE] = { 1, 1 },
188 [AV_PIX_FMT_BAYER_BGGR8] = { 1, 0 },
189 [AV_PIX_FMT_BAYER_RGGB8] = { 1, 0 },
190 [AV_PIX_FMT_BAYER_GBRG8] = { 1, 0 },
191 [AV_PIX_FMT_BAYER_GRBG8] = { 1, 0 },
192 [AV_PIX_FMT_BAYER_BGGR16LE] = { 1, 0 },
193 [AV_PIX_FMT_BAYER_BGGR16BE] = { 1, 0 },
194 [AV_PIX_FMT_BAYER_RGGB16LE] = { 1, 0 },
195 [AV_PIX_FMT_BAYER_RGGB16BE] = { 1, 0 },
196 [AV_PIX_FMT_BAYER_GBRG16LE] = { 1, 0 },
197 [AV_PIX_FMT_BAYER_GBRG16BE] = { 1, 0 },
198 [AV_PIX_FMT_BAYER_GRBG16LE] = { 1, 0 },
199 [AV_PIX_FMT_BAYER_GRBG16BE] = { 1, 0 },
200 [AV_PIX_FMT_XYZ12BE] = { 1, 1, 1 },
201 [AV_PIX_FMT_XYZ12LE] = { 1, 1, 1 },
202 [AV_PIX_FMT_AYUV64LE] = { 1, 1},
203 [AV_PIX_FMT_AYUV64BE] = { 1, 1 },
204 [AV_PIX_FMT_P010LE] = { 1, 1 },
205 [AV_PIX_FMT_P010BE] = { 1, 1 },
206 [AV_PIX_FMT_P012LE] = { 1, 1 },
207 [AV_PIX_FMT_P012BE] = { 1, 1 },
208 [AV_PIX_FMT_P016LE] = { 1, 1 },
209 [AV_PIX_FMT_P016BE] = { 1, 1 },
210 [AV_PIX_FMT_GRAYF32LE] = { 1, 1 },
211 [AV_PIX_FMT_GRAYF32BE] = { 1, 1 },
212 [AV_PIX_FMT_GRAYF16LE] = { 1, 0 },
213 [AV_PIX_FMT_GRAYF16BE] = { 1, 0 },
214 [AV_PIX_FMT_YAF32LE] = { 1, 0 },
215 [AV_PIX_FMT_YAF32BE] = { 1, 0 },
216 [AV_PIX_FMT_YAF16LE] = { 1, 0 },
217 [AV_PIX_FMT_YAF16BE] = { 1, 0 },
218 [AV_PIX_FMT_YUVA422P12BE] = { 1, 1 },
219 [AV_PIX_FMT_YUVA422P12LE] = { 1, 1 },
220 [AV_PIX_FMT_YUVA444P12BE] = { 1, 1 },
221 [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
222 [AV_PIX_FMT_NV24] = { 1, 1 },
223 [AV_PIX_FMT_NV42] = { 1, 1 },
224 [AV_PIX_FMT_Y210LE] = { 1, 1 },
225 [AV_PIX_FMT_Y212LE] = { 1, 1 },
226 [AV_PIX_FMT_Y216LE] = { 1, 1 },
227 [AV_PIX_FMT_X2RGB10LE] = { 1, 1 },
228 [AV_PIX_FMT_X2BGR10LE] = { 1, 1 },
229 [AV_PIX_FMT_NV20BE] = { 1, 1 },
230 [AV_PIX_FMT_NV20LE] = { 1, 1 },
231 [AV_PIX_FMT_P210BE] = { 1, 1 },
232 [AV_PIX_FMT_P210LE] = { 1, 1 },
233 [AV_PIX_FMT_P212BE] = { 1, 1 },
234 [AV_PIX_FMT_P212LE] = { 1, 1 },
235 [AV_PIX_FMT_P410BE] = { 1, 1 },
236 [AV_PIX_FMT_P410LE] = { 1, 1 },
237 [AV_PIX_FMT_P412BE] = { 1, 1 },
238 [AV_PIX_FMT_P412LE] = { 1, 1 },
239 [AV_PIX_FMT_P216BE] = { 1, 1 },
240 [AV_PIX_FMT_P216LE] = { 1, 1 },
241 [AV_PIX_FMT_P416BE] = { 1, 1 },
242 [AV_PIX_FMT_P416LE] = { 1, 1 },
243 [AV_PIX_FMT_NV16] = { 1, 1 },
244 [AV_PIX_FMT_VUYA] = { 1, 1 },
245 [AV_PIX_FMT_VUYX] = { 1, 1 },
246 [AV_PIX_FMT_RGBAF16BE] = { 1, 0 },
247 [AV_PIX_FMT_RGBAF16LE] = { 1, 0 },
248 [AV_PIX_FMT_RGBF16BE] = { 1, 0 },
249 [AV_PIX_FMT_RGBF16LE] = { 1, 0 },
250 [AV_PIX_FMT_RGBF32BE] = { 1, 0 },
251 [AV_PIX_FMT_RGBF32LE] = { 1, 0 },
252 [AV_PIX_FMT_XV30LE] = { 1, 1 },
253 [AV_PIX_FMT_XV36LE] = { 1, 1 },
254 [AV_PIX_FMT_XV36BE] = { 1, 1 },
255 [AV_PIX_FMT_XV48LE] = { 1, 1 },
256 [AV_PIX_FMT_XV48BE] = { 1, 1 },
257 [AV_PIX_FMT_AYUV] = { 1, 1 },
258 [AV_PIX_FMT_UYVA] = { 1, 1 },
259 [AV_PIX_FMT_VYU444] = { 1, 1 },
260 [AV_PIX_FMT_V30XLE] = { 1, 1 },
261 };
262
263 1795953 int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
264 {
265 1795953 return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
266
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 1795953 format_entries[pix_fmt].is_supported_in : 0;
267 }
268
269 1795953 int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
270 {
271 1795953 return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
272
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 1795953 format_entries[pix_fmt].is_supported_out : 0;
273 }
274
275 30826 int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
276 {
277 30826 return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
278
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 30826 format_entries[pix_fmt].is_supported_endianness : 0;
279 }
280
281 /**
282 * This function also sanitizes and strips the input data, removing irrelevant
283 * fields for certain formats.
284 */
285 408768 SwsFormat ff_fmt_from_frame(const AVFrame *frame, int field)
286 {
287 408768 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
288 const AVColorPrimariesDesc *primaries;
289 AVFrameSideData *sd;
290
291 408768 SwsFormat fmt = {
292 408768 .width = frame->width,
293 408768 .height = frame->height,
294 408768 .format = frame->format,
295 408768 .range = frame->color_range,
296 408768 .csp = frame->colorspace,
297 408768 .loc = frame->chroma_location,
298 .desc = desc,
299 .color = {
300 408768 .prim = frame->color_primaries,
301 408768 .trc = frame->color_trc,
302 },
303 };
304
305 av_assert1(fmt.width > 0);
306 av_assert1(fmt.height > 0);
307 av_assert1(fmt.format != AV_PIX_FMT_NONE);
308
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 408768 av_assert0(desc);
309
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 408768 if (desc->flags & (AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_BAYER)) {
310 /* RGB-like family */
311 122116 fmt.csp = AVCOL_SPC_RGB;
312 122116 fmt.range = AVCOL_RANGE_JPEG;
313
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 286652 } else if (desc->flags & AV_PIX_FMT_FLAG_XYZ) {
314 1242 fmt.csp = AVCOL_SPC_UNSPECIFIED;
315 1242 fmt.color = (SwsColor) {
316 .prim = AVCOL_PRI_BT709, /* swscale currently hard-codes this XYZ matrix */
317 .trc = AVCOL_TRC_SMPTE428,
318 };
319
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 285410 } else if (desc->nb_components < 3) {
320 /* Grayscale formats */
321 15200 fmt.color.prim = AVCOL_PRI_UNSPECIFIED;
322 15200 fmt.csp = AVCOL_SPC_UNSPECIFIED;
323
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 15200 if (desc->flags & AV_PIX_FMT_FLAG_FLOAT)
324 306 fmt.range = AVCOL_RANGE_UNSPECIFIED;
325 else
326 14894 fmt.range = AVCOL_RANGE_JPEG; // FIXME: this restriction should be lifted
327 }
328
329
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 408768 switch (frame->format) {
330 10958 case AV_PIX_FMT_YUVJ420P:
331 case AV_PIX_FMT_YUVJ411P:
332 case AV_PIX_FMT_YUVJ422P:
333 case AV_PIX_FMT_YUVJ444P:
334 case AV_PIX_FMT_YUVJ440P:
335 10958 fmt.range = AVCOL_RANGE_JPEG;
336 10958 break;
337 }
338
339
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 408768 if (!desc->log2_chroma_w && !desc->log2_chroma_h)
340 243340 fmt.loc = AVCHROMA_LOC_UNSPECIFIED;
341
342
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 408768 if (frame->flags & AV_FRAME_FLAG_INTERLACED) {
343 ✗ fmt.height = (fmt.height + (field == FIELD_TOP)) >> 1;
344 ✗ fmt.interlaced = 1;
345 }
346
347 /* Set luminance and gamut information */
348 408768 fmt.color.min_luma = av_make_q(0, 1);
349
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 408768 switch (fmt.color.trc) {
350 16 case AVCOL_TRC_SMPTE2084:
351 16 fmt.color.max_luma = av_make_q(10000, 1); break;
352 58 case AVCOL_TRC_ARIB_STD_B67:
353 58 fmt.color.max_luma = av_make_q( 1000, 1); break; /* HLG reference display */
354 408694 default:
355 408694 fmt.color.max_luma = av_make_q( 203, 1); break; /* SDR reference brightness */
356 }
357
358 408768 primaries = av_csp_primaries_desc_from_id(fmt.color.prim);
359
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 408768 if (primaries)
360 1996 fmt.color.gamut = primaries->prim;
361
362
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 408768 if ((sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA))) {
363 4 const AVMasteringDisplayMetadata *mdm = (const AVMasteringDisplayMetadata *) sd->data;
364
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 4 if (mdm->has_luminance) {
365 4 fmt.color.min_luma = mdm->min_luminance;
366 4 fmt.color.max_luma = mdm->max_luminance;
367 }
368
369
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 4 if (mdm->has_primaries) {
370 /* Ignore mastering display white point as it has no bearance on
371 * the underlying content */
372 4 fmt.color.gamut.r.x = mdm->display_primaries[0][0];
373 4 fmt.color.gamut.r.y = mdm->display_primaries[0][1];
374 4 fmt.color.gamut.g.x = mdm->display_primaries[1][0];
375 4 fmt.color.gamut.g.y = mdm->display_primaries[1][1];
376 4 fmt.color.gamut.b.x = mdm->display_primaries[2][0];
377 4 fmt.color.gamut.b.y = mdm->display_primaries[2][1];
378 }
379 }
380
381
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 408768 if ((sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DYNAMIC_HDR_PLUS))) {
382 4 const AVDynamicHDRPlus *dhp = (const AVDynamicHDRPlus *) sd->data;
383 4 const AVHDRPlusColorTransformParams *pars = &dhp->params[0];
384 4 const AVRational nits = av_make_q(10000, 1);
385 4 AVRational maxrgb = pars->maxscl[0];
386
387
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 4 if (!dhp->num_windows || dhp->application_version > 1)
388 ✗ goto skip_hdr10;
389
390 /* Maximum of MaxSCL components */
391
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 4 if (av_cmp_q(pars->maxscl[1], maxrgb) > 0)
392 ✗ maxrgb = pars->maxscl[1];
393
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 4 if (av_cmp_q(pars->maxscl[2], maxrgb) > 0)
394 ✗ maxrgb = pars->maxscl[2];
395
396
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 4 if (maxrgb.num > 0) {
397 /* Estimate true luminance from MaxSCL */
398 4 const AVLumaCoefficients *luma = av_csp_luma_coeffs_from_avcsp(fmt.csp);
399
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 4 if (!luma)
400 ✗ goto skip_hdr10;
401 4 fmt.color.frame_peak = av_add_q(av_mul_q(luma->cr, pars->maxscl[0]),
402 av_add_q(av_mul_q(luma->cg, pars->maxscl[1]),
403 av_mul_q(luma->cb, pars->maxscl[2])));
404 /* Scale the scene average brightness by the ratio between the
405 * maximum luminance and the MaxRGB values */
406 4 fmt.color.frame_avg = av_mul_q(pars->average_maxrgb,
407 av_div_q(fmt.color.frame_peak, maxrgb));
408 } else {
409 /**
410 * Calculate largest value from histogram to use as fallback for
411 * clips with missing MaxSCL information. Note that this may end
412 * up picking the "reserved" value at the 5% percentile, which in
413 * practice appears to track the brightest pixel in the scene.
414 */
415 ✗ for (int i = 0; i < pars->num_distribution_maxrgb_percentiles; i++) {
416 ✗ const AVRational pct = pars->distribution_maxrgb[i].percentile;
417 ✗ if (av_cmp_q(pct, maxrgb) > 0)
418 ✗ maxrgb = pct;
419 ✗ fmt.color.frame_peak = maxrgb;
420 ✗ fmt.color.frame_avg = pars->average_maxrgb;
421 }
422 }
423
424 /* Rescale to nits */
425 4 fmt.color.frame_peak = av_mul_q(nits, fmt.color.frame_peak);
426 4 fmt.color.frame_avg = av_mul_q(nits, fmt.color.frame_avg);
427 }
428 408764 skip_hdr10:
429
430 /* PQ is always scaled down to absolute zero, so ignore mastering metadata */
431
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 408768 if (fmt.color.trc == AVCOL_TRC_SMPTE2084)
432 16 fmt.color.min_luma = av_make_q(0, 1);
433
434 408768 return fmt;
435 }
436
437 12332 static int infer_prim_ref(SwsColor *csp, const SwsColor *ref)
438 {
439
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 12332 if (csp->prim != AVCOL_PRI_UNSPECIFIED)
440 144 return 0;
441
442 /* Re-use the reference gamut only for "safe", similar primaries */
443
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 12188 switch (ref->prim) {
444 6118 case AVCOL_PRI_BT709:
445 case AVCOL_PRI_BT470M:
446 case AVCOL_PRI_BT470BG:
447 case AVCOL_PRI_SMPTE170M:
448 case AVCOL_PRI_SMPTE240M:
449 6118 csp->prim = ref->prim;
450 6118 csp->gamut = ref->gamut;
451 6118 break;
452 6070 default:
453 6070 csp->prim = AVCOL_PRI_BT709;
454 6070 csp->gamut = av_csp_primaries_desc_from_id(csp->prim)->prim;
455 6070 break;
456 }
457
458 12188 return 1;
459 }
460
461 12332 static int infer_trc_ref(SwsColor *csp, const SwsColor *ref)
462 {
463
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 12332 if (csp->trc != AVCOL_TRC_UNSPECIFIED)
464 294 return 0;
465
466 /* Pick a suitable SDR transfer function, to try and minimize conversions */
467
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 12038 switch (ref->trc) {
468 5995 case AVCOL_TRC_UNSPECIFIED:
469 /* HDR curves, never default to these */
470 case AVCOL_TRC_SMPTE2084:
471 case AVCOL_TRC_ARIB_STD_B67:
472 5995 csp->trc = AVCOL_TRC_BT709;
473 5995 csp->min_luma = av_make_q(0, 1);
474 5995 csp->max_luma = av_make_q(203, 1);
475 5995 break;
476 6043 default:
477 6043 csp->trc = ref->trc;
478 6043 csp->min_luma = ref->min_luma;
479 6043 csp->max_luma = ref->max_luma;
480 6043 break;
481 }
482
483 12038 return 1;
484 }
485
486 6166 bool ff_infer_colors(SwsColor *src, SwsColor *dst)
487 {
488 6166 int incomplete = 0;
489
490 6166 incomplete |= infer_prim_ref(dst, src);
491 6166 incomplete |= infer_prim_ref(src, dst);
492
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 6166 av_assert0(src->prim != AVCOL_PRI_UNSPECIFIED);
493
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 6166 av_assert0(dst->prim != AVCOL_PRI_UNSPECIFIED);
494
495 6166 incomplete |= infer_trc_ref(dst, src);
496 6166 incomplete |= infer_trc_ref(src, dst);
497
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 6166 av_assert0(src->trc != AVCOL_TRC_UNSPECIFIED);
498
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 6166 av_assert0(dst->trc != AVCOL_TRC_UNSPECIFIED);
499
500 6166 return incomplete;
501 }
502
503 3527798 int sws_test_format(enum AVPixelFormat format, int output)
504 {
505
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 3527798 return output ? sws_isSupportedOutput(format) : sws_isSupportedInput(format);
506 }
507
508 429723 int sws_test_colorspace(enum AVColorSpace csp, int output)
509 {
510
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 429723 switch (csp) {
511 313641 case AVCOL_SPC_UNSPECIFIED:
512 case AVCOL_SPC_RGB:
513 case AVCOL_SPC_BT709:
514 case AVCOL_SPC_BT470BG:
515 case AVCOL_SPC_SMPTE170M:
516 case AVCOL_SPC_FCC:
517 case AVCOL_SPC_SMPTE240M:
518 case AVCOL_SPC_BT2020_NCL:
519 313641 return 1;
520 116082 default:
521 116082 return 0;
522 }
523 }
524
525 199598 int sws_test_primaries(enum AVColorPrimaries prim, int output)
526 {
527
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 199598 return prim > AVCOL_PRI_RESERVED0 && prim < AVCOL_PRI_NB &&
528 prim != AVCOL_PRI_RESERVED;
529 }
530
531 199598 int sws_test_transfer(enum AVColorTransferCharacteristic trc, int output)
532 {
533 99799 av_csp_eotf_function eotf = output ? av_csp_itu_eotf_inv(trc)
534
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 199598 : av_csp_itu_eotf(trc);
535
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 199598 return trc == AVCOL_TRC_UNSPECIFIED || eotf != NULL;
536 }
537
538 199598 static int test_range(enum AVColorRange range)
539 {
540 199598 return (unsigned)range < AVCOL_RANGE_NB;
541 }
542
543 199598 static int test_loc(enum AVChromaLocation loc)
544 {
545 199598 return (unsigned)loc < AVCHROMA_LOC_NB;
546 }
547
548 199598 int ff_test_fmt(const SwsFormat *fmt, int output)
549 {
550
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 399196 return fmt->width > 0 && fmt->height > 0 &&
551
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 399196 sws_test_format (fmt->format, output) &&
552
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 399196 sws_test_colorspace(fmt->csp, output) &&
553
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 399196 sws_test_primaries (fmt->color.prim, output) &&
554
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 399196 sws_test_transfer (fmt->color.trc, output) &&
555
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 598794 test_range (fmt->range) &&
556 199598 test_loc (fmt->loc);
557 }
558
559 ✗ int sws_test_frame(const AVFrame *frame, int output)
560 {
561 ✗ for (int field = 0; field < 2; field++) {
562 ✗ const SwsFormat fmt = ff_fmt_from_frame(frame, field);
563 ✗ if (!ff_test_fmt(&fmt, output))
564 ✗ return 0;
565 ✗ if (!fmt.interlaced)
566 ✗ break;
567 }
568
569 ✗ return 1;
570 }
571
572 104585 int sws_is_noop(const AVFrame *dst, const AVFrame *src)
573 {
574
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 104585 for (int field = 0; field < 2; field++) {
575 104585 SwsFormat dst_fmt = ff_fmt_from_frame(dst, field);
576 104585 SwsFormat src_fmt = ff_fmt_from_frame(src, field);
577
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 104585 if (!ff_fmt_equal(&dst_fmt, &src_fmt))
578 99799 return 0;
579
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 4786 if (!dst_fmt.interlaced)
580 4786 break;
581 }
582
583 4786 return 1;
584 }
585