FFmpeg
format.c
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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 #include "libavutil/refstruct.h"
25 
26 #include "format.h"
27 #include "csputils.h"
28 #include "ops_internal.h"
29 #include "config_components.h"
30 
31 #if CONFIG_UNSTABLE
32 #include "libavutil/hwcontext.h"
33 #endif
34 
35 #define Q(N) ((AVRational) { N, 1 })
36 #define Q0 Q(0)
37 #define Q1 Q(1)
38 
39 #define RET(x) \
40  do { \
41  int _ret = (x); \
42  if (_ret < 0) \
43  return _ret; \
44  } while (0)
45 
46 typedef struct LegacyFormatEntry {
47  uint8_t is_supported_in :1;
48  uint8_t is_supported_out :1;
49  uint8_t is_supported_endianness :1;
50 } LegacyFormatEntry;
51 
52 /* Format support table for legacy swscale */
53 static const LegacyFormatEntry legacy_format_entries[] = {
54  [AV_PIX_FMT_YUV420P] = { 1, 1 },
55  [AV_PIX_FMT_YUYV422] = { 1, 1 },
56  [AV_PIX_FMT_RGB24] = { 1, 1 },
57  [AV_PIX_FMT_BGR24] = { 1, 1 },
58  [AV_PIX_FMT_YUV422P] = { 1, 1 },
59  [AV_PIX_FMT_YUV444P] = { 1, 1 },
60  [AV_PIX_FMT_YUV410P] = { 1, 1 },
61  [AV_PIX_FMT_YUV411P] = { 1, 1 },
62  [AV_PIX_FMT_GRAY8] = { 1, 1 },
63  [AV_PIX_FMT_MONOWHITE] = { 1, 1 },
64  [AV_PIX_FMT_MONOBLACK] = { 1, 1 },
65  [AV_PIX_FMT_PAL8] = { 1, 0 },
66  [AV_PIX_FMT_YUVJ420P] = { 1, 1 },
67  [AV_PIX_FMT_YUVJ411P] = { 1, 1 },
68  [AV_PIX_FMT_YUVJ422P] = { 1, 1 },
69  [AV_PIX_FMT_YUVJ444P] = { 1, 1 },
70  [AV_PIX_FMT_YVYU422] = { 1, 1 },
71  [AV_PIX_FMT_UYVY422] = { 1, 1 },
72  [AV_PIX_FMT_UYYVYY411] = { 1, 0 },
73  [AV_PIX_FMT_BGR8] = { 1, 1 },
74  [AV_PIX_FMT_BGR4] = { 0, 1 },
75  [AV_PIX_FMT_BGR4_BYTE] = { 1, 1 },
76  [AV_PIX_FMT_RGB8] = { 1, 1 },
77  [AV_PIX_FMT_RGB4] = { 0, 1 },
78  [AV_PIX_FMT_RGB4_BYTE] = { 1, 1 },
79  [AV_PIX_FMT_NV12] = { 1, 1 },
80  [AV_PIX_FMT_NV21] = { 1, 1 },
81  [AV_PIX_FMT_ARGB] = { 1, 1 },
82  [AV_PIX_FMT_RGBA] = { 1, 1 },
83  [AV_PIX_FMT_ABGR] = { 1, 1 },
84  [AV_PIX_FMT_BGRA] = { 1, 1 },
85  [AV_PIX_FMT_0RGB] = { 1, 1 },
86  [AV_PIX_FMT_RGB0] = { 1, 1 },
87  [AV_PIX_FMT_0BGR] = { 1, 1 },
88  [AV_PIX_FMT_BGR0] = { 1, 1 },
89  [AV_PIX_FMT_GRAY9BE] = { 1, 1 },
90  [AV_PIX_FMT_GRAY9LE] = { 1, 1 },
91  [AV_PIX_FMT_GRAY10BE] = { 1, 1 },
92  [AV_PIX_FMT_GRAY10LE] = { 1, 1 },
93  [AV_PIX_FMT_GRAY12BE] = { 1, 1 },
94  [AV_PIX_FMT_GRAY12LE] = { 1, 1 },
95  [AV_PIX_FMT_GRAY14BE] = { 1, 1 },
96  [AV_PIX_FMT_GRAY14LE] = { 1, 1 },
97  [AV_PIX_FMT_GRAY16BE] = { 1, 1 },
98  [AV_PIX_FMT_GRAY16LE] = { 1, 1 },
99  [AV_PIX_FMT_YUV440P] = { 1, 1 },
100  [AV_PIX_FMT_YUVJ440P] = { 1, 1 },
101  [AV_PIX_FMT_YUV440P10LE] = { 1, 1 },
102  [AV_PIX_FMT_YUV440P10BE] = { 1, 1 },
103  [AV_PIX_FMT_YUV440P12LE] = { 1, 1 },
104  [AV_PIX_FMT_YUV440P12BE] = { 1, 1 },
105  [AV_PIX_FMT_YUVA420P] = { 1, 1 },
106  [AV_PIX_FMT_YUVA422P] = { 1, 1 },
107  [AV_PIX_FMT_YUVA444P] = { 1, 1 },
108  [AV_PIX_FMT_YUVA420P9BE] = { 1, 1 },
109  [AV_PIX_FMT_YUVA420P9LE] = { 1, 1 },
110  [AV_PIX_FMT_YUVA422P9BE] = { 1, 1 },
111  [AV_PIX_FMT_YUVA422P9LE] = { 1, 1 },
112  [AV_PIX_FMT_YUVA444P9BE] = { 1, 1 },
113  [AV_PIX_FMT_YUVA444P9LE] = { 1, 1 },
114  [AV_PIX_FMT_YUVA420P10BE] = { 1, 1 },
115  [AV_PIX_FMT_YUVA420P10LE] = { 1, 1 },
116  [AV_PIX_FMT_YUVA422P10BE] = { 1, 1 },
117  [AV_PIX_FMT_YUVA422P10LE] = { 1, 1 },
118  [AV_PIX_FMT_YUVA444P10BE] = { 1, 1 },
119  [AV_PIX_FMT_YUVA444P10LE] = { 1, 1 },
120  [AV_PIX_FMT_YUVA420P16BE] = { 1, 1 },
121  [AV_PIX_FMT_YUVA420P16LE] = { 1, 1 },
122  [AV_PIX_FMT_YUVA422P16BE] = { 1, 1 },
123  [AV_PIX_FMT_YUVA422P16LE] = { 1, 1 },
124  [AV_PIX_FMT_YUVA444P16BE] = { 1, 1 },
125  [AV_PIX_FMT_YUVA444P16LE] = { 1, 1 },
126  [AV_PIX_FMT_RGB48BE] = { 1, 1 },
127  [AV_PIX_FMT_RGB48LE] = { 1, 1 },
128  [AV_PIX_FMT_RGBA64BE] = { 1, 1, 1 },
129  [AV_PIX_FMT_RGBA64LE] = { 1, 1, 1 },
130  [AV_PIX_FMT_RGB565BE] = { 1, 1 },
131  [AV_PIX_FMT_RGB565LE] = { 1, 1 },
132  [AV_PIX_FMT_RGB555BE] = { 1, 1 },
133  [AV_PIX_FMT_RGB555LE] = { 1, 1 },
134  [AV_PIX_FMT_BGR565BE] = { 1, 1 },
135  [AV_PIX_FMT_BGR565LE] = { 1, 1 },
136  [AV_PIX_FMT_BGR555BE] = { 1, 1 },
137  [AV_PIX_FMT_BGR555LE] = { 1, 1 },
138  [AV_PIX_FMT_YUV420P16LE] = { 1, 1 },
139  [AV_PIX_FMT_YUV420P16BE] = { 1, 1 },
140  [AV_PIX_FMT_YUV422P16LE] = { 1, 1 },
141  [AV_PIX_FMT_YUV422P16BE] = { 1, 1 },
142  [AV_PIX_FMT_YUV444P16LE] = { 1, 1 },
143  [AV_PIX_FMT_YUV444P16BE] = { 1, 1 },
144  [AV_PIX_FMT_RGB444LE] = { 1, 1 },
145  [AV_PIX_FMT_RGB444BE] = { 1, 1 },
146  [AV_PIX_FMT_BGR444LE] = { 1, 1 },
147  [AV_PIX_FMT_BGR444BE] = { 1, 1 },
148  [AV_PIX_FMT_YA8] = { 1, 1 },
149  [AV_PIX_FMT_YA16BE] = { 1, 1 },
150  [AV_PIX_FMT_YA16LE] = { 1, 1 },
151  [AV_PIX_FMT_BGR48BE] = { 1, 1 },
152  [AV_PIX_FMT_BGR48LE] = { 1, 1 },
153  [AV_PIX_FMT_BGRA64BE] = { 1, 1, 1 },
154  [AV_PIX_FMT_BGRA64LE] = { 1, 1, 1 },
155  [AV_PIX_FMT_YUV420P9BE] = { 1, 1 },
156  [AV_PIX_FMT_YUV420P9LE] = { 1, 1 },
157  [AV_PIX_FMT_YUV420P10BE] = { 1, 1 },
158  [AV_PIX_FMT_YUV420P10LE] = { 1, 1 },
159  [AV_PIX_FMT_YUV420P12BE] = { 1, 1 },
160  [AV_PIX_FMT_YUV420P12LE] = { 1, 1 },
161  [AV_PIX_FMT_YUV420P14BE] = { 1, 1 },
162  [AV_PIX_FMT_YUV420P14LE] = { 1, 1 },
163  [AV_PIX_FMT_YUV422P9BE] = { 1, 1 },
164  [AV_PIX_FMT_YUV422P9LE] = { 1, 1 },
165  [AV_PIX_FMT_YUV422P10BE] = { 1, 1 },
166  [AV_PIX_FMT_YUV422P10LE] = { 1, 1 },
167  [AV_PIX_FMT_YUV422P12BE] = { 1, 1 },
168  [AV_PIX_FMT_YUV422P12LE] = { 1, 1 },
169  [AV_PIX_FMT_YUV422P14BE] = { 1, 1 },
170  [AV_PIX_FMT_YUV422P14LE] = { 1, 1 },
171  [AV_PIX_FMT_YUV444P9BE] = { 1, 1 },
172  [AV_PIX_FMT_YUV444P9LE] = { 1, 1 },
173  [AV_PIX_FMT_YUV444P10BE] = { 1, 1 },
174  [AV_PIX_FMT_YUV444P10LE] = { 1, 1 },
175  [AV_PIX_FMT_YUV444P12BE] = { 1, 1 },
176  [AV_PIX_FMT_YUV444P12LE] = { 1, 1 },
177  [AV_PIX_FMT_YUV444P14BE] = { 1, 1 },
178  [AV_PIX_FMT_YUV444P14LE] = { 1, 1 },
179  [AV_PIX_FMT_YUV444P10MSBBE] = { 1, 1 },
180  [AV_PIX_FMT_YUV444P10MSBLE] = { 1, 1 },
181  [AV_PIX_FMT_YUV444P12MSBBE] = { 1, 1 },
182  [AV_PIX_FMT_YUV444P12MSBLE] = { 1, 1 },
183  [AV_PIX_FMT_GBRP] = { 1, 1 },
184  [AV_PIX_FMT_GBRP9LE] = { 1, 1 },
185  [AV_PIX_FMT_GBRP9BE] = { 1, 1 },
186  [AV_PIX_FMT_GBRP10LE] = { 1, 1 },
187  [AV_PIX_FMT_GBRP10BE] = { 1, 1 },
188  [AV_PIX_FMT_GBRAP10LE] = { 1, 1 },
189  [AV_PIX_FMT_GBRAP10BE] = { 1, 1 },
190  [AV_PIX_FMT_GBRP10MSBLE] = { 1, 1 },
191  [AV_PIX_FMT_GBRP10MSBBE] = { 1, 1 },
192  [AV_PIX_FMT_GBRP12LE] = { 1, 1 },
193  [AV_PIX_FMT_GBRP12BE] = { 1, 1 },
194  [AV_PIX_FMT_GBRP12MSBLE] = { 1, 1 },
195  [AV_PIX_FMT_GBRP12MSBBE] = { 1, 1 },
196  [AV_PIX_FMT_GBRAP12LE] = { 1, 1 },
197  [AV_PIX_FMT_GBRAP12BE] = { 1, 1 },
198  [AV_PIX_FMT_GBRP14LE] = { 1, 1 },
199  [AV_PIX_FMT_GBRP14BE] = { 1, 1 },
200  [AV_PIX_FMT_GBRAP14LE] = { 1, 1 },
201  [AV_PIX_FMT_GBRAP14BE] = { 1, 1 },
202  [AV_PIX_FMT_GBRP16LE] = { 1, 1 },
203  [AV_PIX_FMT_GBRP16BE] = { 1, 1 },
204  [AV_PIX_FMT_GBRPF32LE] = { 1, 1 },
205  [AV_PIX_FMT_GBRPF32BE] = { 1, 1 },
206  [AV_PIX_FMT_GBRAPF32LE] = { 1, 1 },
207  [AV_PIX_FMT_GBRAPF32BE] = { 1, 1 },
208  [AV_PIX_FMT_GBRPF16LE] = { 1, 0 },
209  [AV_PIX_FMT_GBRPF16BE] = { 1, 0 },
210  [AV_PIX_FMT_GBRAPF16LE] = { 1, 0 },
211  [AV_PIX_FMT_GBRAPF16BE] = { 1, 0 },
212  [AV_PIX_FMT_GBRAP] = { 1, 1 },
213  [AV_PIX_FMT_GBRAP16LE] = { 1, 1 },
214  [AV_PIX_FMT_GBRAP16BE] = { 1, 1 },
215  [AV_PIX_FMT_BAYER_BGGR8] = { 1, 0 },
216  [AV_PIX_FMT_BAYER_RGGB8] = { 1, 0 },
217  [AV_PIX_FMT_BAYER_GBRG8] = { 1, 0 },
218  [AV_PIX_FMT_BAYER_GRBG8] = { 1, 0 },
219  [AV_PIX_FMT_BAYER_BGGR16LE] = { 1, 0 },
220  [AV_PIX_FMT_BAYER_BGGR16BE] = { 1, 0 },
221  [AV_PIX_FMT_BAYER_RGGB16LE] = { 1, 0 },
222  [AV_PIX_FMT_BAYER_RGGB16BE] = { 1, 0 },
223  [AV_PIX_FMT_BAYER_GBRG16LE] = { 1, 0 },
224  [AV_PIX_FMT_BAYER_GBRG16BE] = { 1, 0 },
225  [AV_PIX_FMT_BAYER_GRBG16LE] = { 1, 0 },
226  [AV_PIX_FMT_BAYER_GRBG16BE] = { 1, 0 },
227  [AV_PIX_FMT_XYZ12BE] = { 1, 1, 1 },
228  [AV_PIX_FMT_XYZ12LE] = { 1, 1, 1 },
229  [AV_PIX_FMT_AYUV64LE] = { 1, 1},
230  [AV_PIX_FMT_AYUV64BE] = { 1, 1 },
231  [AV_PIX_FMT_P010LE] = { 1, 1 },
232  [AV_PIX_FMT_P010BE] = { 1, 1 },
233  [AV_PIX_FMT_P012LE] = { 1, 1 },
234  [AV_PIX_FMT_P012BE] = { 1, 1 },
235  [AV_PIX_FMT_P016LE] = { 1, 1 },
236  [AV_PIX_FMT_P016BE] = { 1, 1 },
237  [AV_PIX_FMT_GRAYF32LE] = { 1, 1 },
238  [AV_PIX_FMT_GRAYF32BE] = { 1, 1 },
239  [AV_PIX_FMT_GRAYF16LE] = { 1, 0 },
240  [AV_PIX_FMT_GRAYF16BE] = { 1, 0 },
241  [AV_PIX_FMT_YAF32LE] = { 1, 0 },
242  [AV_PIX_FMT_YAF32BE] = { 1, 0 },
243  [AV_PIX_FMT_YAF16LE] = { 1, 0 },
244  [AV_PIX_FMT_YAF16BE] = { 1, 0 },
245  [AV_PIX_FMT_YUVA422P12BE] = { 1, 1 },
246  [AV_PIX_FMT_YUVA422P12LE] = { 1, 1 },
247  [AV_PIX_FMT_YUVA444P12BE] = { 1, 1 },
248  [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
249  [AV_PIX_FMT_NV24] = { 1, 1 },
250  [AV_PIX_FMT_NV42] = { 1, 1 },
251  [AV_PIX_FMT_Y210LE] = { 1, 1 },
252  [AV_PIX_FMT_Y212LE] = { 1, 1 },
253  [AV_PIX_FMT_Y216LE] = { 1, 1 },
254  [AV_PIX_FMT_X2RGB10LE] = { 1, 1 },
255  [AV_PIX_FMT_X2BGR10LE] = { 1, 1 },
256  [AV_PIX_FMT_NV20BE] = { 1, 1 },
257  [AV_PIX_FMT_NV20LE] = { 1, 1 },
258  [AV_PIX_FMT_P210BE] = { 1, 1 },
259  [AV_PIX_FMT_P210LE] = { 1, 1 },
260  [AV_PIX_FMT_P212BE] = { 1, 1 },
261  [AV_PIX_FMT_P212LE] = { 1, 1 },
262  [AV_PIX_FMT_P410BE] = { 1, 1 },
263  [AV_PIX_FMT_P410LE] = { 1, 1 },
264  [AV_PIX_FMT_P412BE] = { 1, 1 },
265  [AV_PIX_FMT_P412LE] = { 1, 1 },
266  [AV_PIX_FMT_P216BE] = { 1, 1 },
267  [AV_PIX_FMT_P216LE] = { 1, 1 },
268  [AV_PIX_FMT_P416BE] = { 1, 1 },
269  [AV_PIX_FMT_P416LE] = { 1, 1 },
270  [AV_PIX_FMT_NV16] = { 1, 1 },
271  [AV_PIX_FMT_VUYA] = { 1, 1 },
272  [AV_PIX_FMT_VUYX] = { 1, 1 },
273  [AV_PIX_FMT_RGBAF16BE] = { 1, 0 },
274  [AV_PIX_FMT_RGBAF16LE] = { 1, 0 },
275  [AV_PIX_FMT_RGBF16BE] = { 1, 0 },
276  [AV_PIX_FMT_RGBF16LE] = { 1, 0 },
277  [AV_PIX_FMT_RGBF32BE] = { 1, 0 },
278  [AV_PIX_FMT_RGBF32LE] = { 1, 0 },
279  [AV_PIX_FMT_XV30LE] = { 1, 1 },
280  [AV_PIX_FMT_XV36LE] = { 1, 1 },
281  [AV_PIX_FMT_XV36BE] = { 1, 1 },
282  [AV_PIX_FMT_XV48LE] = { 1, 1 },
283  [AV_PIX_FMT_XV48BE] = { 1, 1 },
284  [AV_PIX_FMT_AYUV] = { 1, 1 },
285  [AV_PIX_FMT_UYVA] = { 1, 1 },
286  [AV_PIX_FMT_VYU444] = { 1, 1 },
287  [AV_PIX_FMT_V30XLE] = { 1, 1 },
288 };
289 
290 int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
291 {
292  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(legacy_format_entries) ?
293  legacy_format_entries[pix_fmt].is_supported_in : 0;
294 }
295 
296 int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
297 {
298  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(legacy_format_entries) ?
299  legacy_format_entries[pix_fmt].is_supported_out : 0;
300 }
301 
302 int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
303 {
304  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(legacy_format_entries) ?
305  legacy_format_entries[pix_fmt].is_supported_endianness : 0;
306 }
307 
308 static void sanitize_fmt(SwsFormat *fmt, const AVPixFmtDescriptor *desc)
309 {
310  if (desc->flags & (AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_BAYER)) {
311  /* RGB-like family */
312  fmt->csp = AVCOL_SPC_RGB;
313  fmt->range = AVCOL_RANGE_JPEG;
314  } else if (desc->flags & AV_PIX_FMT_FLAG_XYZ) {
315  fmt->csp = AVCOL_SPC_UNSPECIFIED;
316  fmt->color = (SwsColor) {
317  .prim = AVCOL_PRI_BT709, /* swscale currently hard-codes this XYZ matrix */
318  .trc = AVCOL_TRC_SMPTE428,
319  };
320  } else if (desc->nb_components < 3) {
321  /* Grayscale formats */
322  fmt->color.prim = AVCOL_PRI_UNSPECIFIED;
323  fmt->csp = AVCOL_SPC_UNSPECIFIED;
324  if (desc->flags & AV_PIX_FMT_FLAG_FLOAT)
325  fmt->range = AVCOL_RANGE_UNSPECIFIED;
326  else
327  fmt->range = AVCOL_RANGE_JPEG; // FIXME: this restriction should be lifted
328  }
329 
330  switch (av_pix_fmt_desc_get_id(desc)) {
331  case AV_PIX_FMT_YUVJ420P:
332  case AV_PIX_FMT_YUVJ411P:
333  case AV_PIX_FMT_YUVJ422P:
334  case AV_PIX_FMT_YUVJ444P:
335  case AV_PIX_FMT_YUVJ440P:
336  fmt->range = AVCOL_RANGE_JPEG;
337  break;
338  }
339 
340  if (!desc->log2_chroma_w && !desc->log2_chroma_h)
341  fmt->loc = AVCHROMA_LOC_UNSPECIFIED;
342 }
343 
344 /**
345  * This function also sanitizes and strips the input data, removing irrelevant
346  * fields for certain formats.
347  */
348 SwsFormat ff_fmt_from_frame(const AVFrame *frame, int field)
349 {
350  const AVColorPrimariesDesc *primaries;
351  AVFrameSideData *sd;
352 
353  enum AVPixelFormat format = frame->format;
354  enum AVPixelFormat hw_format = AV_PIX_FMT_NONE;
355 
356 #if CONFIG_UNSTABLE
357  if (frame->hw_frames_ctx) {
358  AVHWFramesContext *hwfc = (AVHWFramesContext *)frame->hw_frames_ctx->data;
359  hw_format = frame->format;
360  format = hwfc->sw_format;
361  }
362 #endif
363 
364  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(format);
365 
366  SwsFormat fmt = {
367  .width = frame->width,
368  .height = frame->height,
369  .format = format,
370  .hw_format = hw_format,
371  .range = frame->color_range,
372  .csp = frame->colorspace,
373  .loc = frame->chroma_location,
374  .desc = desc,
375  .color = {
376  .prim = frame->color_primaries,
377  .trc = frame->color_trc,
378  },
379  };
380 
381  av_assert1(fmt.width > 0);
382  av_assert1(fmt.height > 0);
383  av_assert1(fmt.format != AV_PIX_FMT_NONE);
384  av_assert0(desc);
385  sanitize_fmt(&fmt, desc);
386 
387  if (frame->flags & AV_FRAME_FLAG_INTERLACED) {
388  fmt.height = (fmt.height + (field == FIELD_TOP)) >> 1;
389  fmt.interlaced = 1;
390  }
391 
392  /* Set luminance and gamut information */
393  fmt.color.min_luma = av_make_q(0, 1);
394  switch (fmt.color.trc) {
395  case AVCOL_TRC_SMPTE2084:
396  fmt.color.max_luma = av_make_q(10000, 1); break;
397  case AVCOL_TRC_ARIB_STD_B67:
398  fmt.color.max_luma = av_make_q( 1000, 1); break; /* HLG reference display */
399  default:
400  fmt.color.max_luma = av_make_q( 203, 1); break; /* SDR reference brightness */
401  }
402 
403  primaries = av_csp_primaries_desc_from_id(fmt.color.prim);
404  if (primaries)
405  fmt.color.gamut = primaries->prim;
406 
407  if ((sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA))) {
408  const AVMasteringDisplayMetadata *mdm = (const AVMasteringDisplayMetadata *) sd->data;
409  if (mdm->has_luminance) {
410  fmt.color.min_luma = mdm->min_luminance;
411  fmt.color.max_luma = mdm->max_luminance;
412  }
413 
414  if (mdm->has_primaries) {
415  /* Ignore mastering display white point as it has no bearance on
416  * the underlying content */
417  fmt.color.gamut.r.x = mdm->display_primaries[0][0];
418  fmt.color.gamut.r.y = mdm->display_primaries[0][1];
419  fmt.color.gamut.g.x = mdm->display_primaries[1][0];
420  fmt.color.gamut.g.y = mdm->display_primaries[1][1];
421  fmt.color.gamut.b.x = mdm->display_primaries[2][0];
422  fmt.color.gamut.b.y = mdm->display_primaries[2][1];
423  }
424  }
425 
426  if ((sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DYNAMIC_HDR_PLUS))) {
427  const AVDynamicHDRPlus *dhp = (const AVDynamicHDRPlus *) sd->data;
428  const AVHDRPlusColorTransformParams *pars = &dhp->params[0];
429  const AVRational nits = av_make_q(10000, 1);
430  AVRational maxrgb = pars->maxscl[0];
431 
432  if (!dhp->num_windows || dhp->application_version > 1)
433  goto skip_hdr10;
434 
435  /* Maximum of MaxSCL components */
436  if (av_cmp_q(pars->maxscl[1], maxrgb) > 0)
437  maxrgb = pars->maxscl[1];
438  if (av_cmp_q(pars->maxscl[2], maxrgb) > 0)
439  maxrgb = pars->maxscl[2];
440 
441  if (maxrgb.num > 0) {
442  /* Estimate true luminance from MaxSCL */
443  const AVLumaCoefficients *luma = av_csp_luma_coeffs_from_avcsp(fmt.csp);
444  if (!luma)
445  goto skip_hdr10;
446  fmt.color.frame_peak = av_add_q(av_mul_q(luma->cr, pars->maxscl[0]),
447  av_add_q(av_mul_q(luma->cg, pars->maxscl[1]),
448  av_mul_q(luma->cb, pars->maxscl[2])));
449  /* Scale the scene average brightness by the ratio between the
450  * maximum luminance and the MaxRGB values */
451  fmt.color.frame_avg = av_mul_q(pars->average_maxrgb,
452  av_div_q(fmt.color.frame_peak, maxrgb));
453  } else {
454  /**
455  * Calculate largest value from histogram to use as fallback for
456  * clips with missing MaxSCL information. Note that this may end
457  * up picking the "reserved" value at the 5% percentile, which in
458  * practice appears to track the brightest pixel in the scene.
459  */
460  for (int i = 0; i < pars->num_distribution_maxrgb_percentiles; i++) {
461  const AVRational pct = pars->distribution_maxrgb[i].percentile;
462  if (av_cmp_q(pct, maxrgb) > 0)
463  maxrgb = pct;
464  fmt.color.frame_peak = maxrgb;
465  fmt.color.frame_avg = pars->average_maxrgb;
466  }
467  }
468 
469  /* Rescale to nits */
470  fmt.color.frame_peak = av_mul_q(nits, fmt.color.frame_peak);
471  fmt.color.frame_avg = av_mul_q(nits, fmt.color.frame_avg);
472  }
473 skip_hdr10:
474 
475  /* PQ is always scaled down to absolute zero, so ignore mastering metadata */
476  if (fmt.color.trc == AVCOL_TRC_SMPTE2084)
477  fmt.color.min_luma = av_make_q(0, 1);
478 
479  return fmt;
480 }
481 
482 void ff_fmt_from_pixfmt(enum AVPixelFormat pixfmt, SwsFormat *fmt)
483 {
484  ff_fmt_clear(fmt);
485  fmt->format = pixfmt;
486  fmt->desc = av_pix_fmt_desc_get(pixfmt);
487  sanitize_fmt(fmt, fmt->desc);
488 }
489 
490 static int infer_prim_ref(SwsColor *csp, const SwsColor *ref)
491 {
492  if (csp->prim != AVCOL_PRI_UNSPECIFIED)
493  return 0;
494 
495  /* Reuse the reference gamut only for "safe", similar primaries */
496  switch (ref->prim) {
497  case AVCOL_PRI_BT709:
498  case AVCOL_PRI_BT470M:
499  case AVCOL_PRI_BT470BG:
500  case AVCOL_PRI_SMPTE170M:
501  case AVCOL_PRI_SMPTE240M:
502  csp->prim = ref->prim;
503  csp->gamut = ref->gamut;
504  break;
505  default:
506  csp->prim = AVCOL_PRI_BT709;
507  csp->gamut = av_csp_primaries_desc_from_id(csp->prim)->prim;
508  break;
509  }
510 
511  return 1;
512 }
513 
514 static int infer_trc_ref(SwsColor *csp, const SwsColor *ref)
515 {
516  if (csp->trc != AVCOL_TRC_UNSPECIFIED)
517  return 0;
518 
519  /* Pick a suitable SDR transfer function, to try and minimize conversions */
520  switch (ref->trc) {
521  case AVCOL_TRC_UNSPECIFIED:
522  /* HDR curves, never default to these */
523  case AVCOL_TRC_SMPTE2084:
524  case AVCOL_TRC_ARIB_STD_B67:
525  csp->trc = AVCOL_TRC_BT709;
526  csp->min_luma = av_make_q(0, 1);
527  csp->max_luma = av_make_q(203, 1);
528  break;
529  default:
530  csp->trc = ref->trc;
531  csp->min_luma = ref->min_luma;
532  csp->max_luma = ref->max_luma;
533  break;
534  }
535 
536  return 1;
537 }
538 
539 bool ff_infer_colors(SwsColor *src, SwsColor *dst)
540 {
541  int incomplete = 0;
542 
543  incomplete |= infer_prim_ref(dst, src);
544  incomplete |= infer_prim_ref(src, dst);
545  av_assert0(src->prim != AVCOL_PRI_UNSPECIFIED);
546  av_assert0(dst->prim != AVCOL_PRI_UNSPECIFIED);
547 
548  incomplete |= infer_trc_ref(dst, src);
549  incomplete |= infer_trc_ref(src, dst);
550  av_assert0(src->trc != AVCOL_TRC_UNSPECIFIED);
551  av_assert0(dst->trc != AVCOL_TRC_UNSPECIFIED);
552 
553  return incomplete;
554 }
555 
556 int sws_test_format(enum AVPixelFormat format, int output)
557 {
558  return output ? sws_isSupportedOutput(format) : sws_isSupportedInput(format);
559 }
560 
561 int sws_test_hw_format(enum AVPixelFormat format)
562 {
563  switch (format) {
564  case AV_PIX_FMT_NONE: return 1;
565 #if CONFIG_VULKAN
566  case AV_PIX_FMT_VULKAN: return 1;
567 #endif
568  default: return 0;
569  }
570 }
571 
572 int sws_test_colorspace(enum AVColorSpace csp, int output)
573 {
574  switch (csp) {
575  case AVCOL_SPC_UNSPECIFIED:
576  case AVCOL_SPC_RGB:
577  case AVCOL_SPC_BT709:
578  case AVCOL_SPC_BT470BG:
579  case AVCOL_SPC_SMPTE170M:
580  case AVCOL_SPC_FCC:
581  case AVCOL_SPC_SMPTE240M:
582  case AVCOL_SPC_BT2020_NCL:
583  return 1;
584  default:
585  return 0;
586  }
587 }
588 
589 int sws_test_primaries(enum AVColorPrimaries prim, int output)
590 {
591  return ((prim > AVCOL_PRI_RESERVED0 && prim < AVCOL_PRI_NB) ||
592  (prim >= AVCOL_PRI_EXT_BASE && prim < AVCOL_PRI_EXT_NB)) &&
593  prim != AVCOL_PRI_RESERVED;
594 }
595 
596 int sws_test_transfer(enum AVColorTransferCharacteristic trc, int output)
597 {
598  av_csp_eotf_function eotf = output ? av_csp_itu_eotf_inv(trc)
599  : av_csp_itu_eotf(trc);
600  return trc == AVCOL_TRC_UNSPECIFIED || eotf != NULL;
601 }
602 
603 static int test_range(enum AVColorRange range)
604 {
605  return (unsigned)range < AVCOL_RANGE_NB;
606 }
607 
608 static int test_loc(enum AVChromaLocation loc)
609 {
610  return (unsigned)loc < AVCHROMA_LOC_NB;
611 }
612 
613 int ff_test_fmt(const SwsFormat *fmt, int output)
614 {
615  return fmt->width > 0 && fmt->height > 0 &&
616  sws_test_format (fmt->format, output) &&
617  sws_test_colorspace(fmt->csp, output) &&
618  sws_test_primaries (fmt->color.prim, output) &&
619  sws_test_transfer (fmt->color.trc, output) &&
620  sws_test_hw_format (fmt->hw_format) &&
621  test_range (fmt->range) &&
622  test_loc (fmt->loc);
623 }
624 
625 int sws_test_frame(const AVFrame *frame, int output)
626 {
627  for (int field = 0; field < 2; field++) {
628  const SwsFormat fmt = ff_fmt_from_frame(frame, field);
629  if (!ff_test_fmt(&fmt, output))
630  return 0;
631  if (!fmt.interlaced)
632  break;
633  }
634 
635  return 1;
636 }
637 
638 int sws_is_noop(const AVFrame *dst, const AVFrame *src)
639 {
640  for (int field = 0; field < 2; field++) {
641  SwsFormat dst_fmt = ff_fmt_from_frame(dst, field);
642  SwsFormat src_fmt = ff_fmt_from_frame(src, field);
643  if (!ff_fmt_equal(&dst_fmt, &src_fmt))
644  return 0;
645  if (!dst_fmt.interlaced)
646  break;
647  }
648 
649  return 1;
650 }
651 
652 void ff_sws_frame_from_avframe(SwsFrame *dst, const AVFrame *src)
653 {
654  dst->format = src->format;
655  dst->width = src->width;
656  dst->height = src->height;
657  dst->avframe = src;
658  for (int i = 0; i < FF_ARRAY_ELEMS(dst->data); i++) {
659  dst->data[i] = src->data[i];
660  dst->linesize[i] = src->linesize[i];
661  }
662 }
663 
664 #if CONFIG_UNSTABLE
665 
666 /* Returns the type suitable for a pixel after fully decoding/unpacking it */
667 static SwsPixelType fmt_pixel_type(enum AVPixelFormat fmt)
668 {
669  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
670  const int bits = FFALIGN(desc->comp[0].depth, 8);
671  if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) {
672  switch (bits) {
673  case 32: return SWS_PIXEL_F32;
674  /* TODO: no support for 16-bit float yet */
675  }
676  } else {
677  switch (bits) {
678  case 8: return SWS_PIXEL_U8;
679  case 16: return SWS_PIXEL_U16;
680  /* TODO: AVRational cannot represent UINT32_MAX */
681  }
682  }
683 
684  return SWS_PIXEL_NONE;
685 }
686 
687 /* A regular format is defined as any format that contains only a single
688  * component per elementary data type (i.e. no sub-byte pack/unpack needed),
689  * and whose components map 1:1 onto elementary data units */
690 static int is_regular_fmt(enum AVPixelFormat fmt)
691 {
692  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
693  if (desc->flags & (AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_BAYER))
694  return 0; /* no 1:1 correspondence between components and data units */
695  if (desc->flags & (AV_PIX_FMT_FLAG_BITSTREAM))
696  return 0; /* bitstream formats are packed by definition */
697  if ((desc->flags & AV_PIX_FMT_FLAG_PLANAR) || desc->nb_components == 1)
698  return 1; /* planar formats are regular by definition */
699 
700  const int step = desc->comp[0].step;
701  int total_bits = 0;
702 
703  for (int i = 0; i < desc->nb_components; i++) {
704  if (desc->comp[i].shift || desc->comp[i].step != step)
705  return 0; /* irregular/packed format */
706  total_bits += desc->comp[i].depth;
707  }
708 
709  /* Exclude formats with missing components like RGB0, 0RGB, etc. */
710  return total_bits == step * 8;
711 }
712 
713 typedef struct FmtInfo {
714  SwsReadWriteOp rw;
715  SwsSwizzleOp swizzle;
716  SwsPackOp pack;
717  int shift;
718 } FmtInfo;
719 
720 #define BITSTREAM_FMT(SWIZ, FRAC, PACKED, ...) (FmtInfo) { \
721  .rw = { .elems = 1, .frac = FRAC, .packed = PACKED }, \
722  .swizzle = SWIZ, \
723  __VA_ARGS__ \
724 }
725 
726 #define SUBPACKED_FMT(SWIZ, ...) (FmtInfo) { \
727  .rw = { .elems = 1, .packed = true }, \
728  .swizzle = SWIZ, \
729  .pack.pattern = {__VA_ARGS__}, \
730 }
731 
732 #define PACKED_FMT(SWIZ, N, ...) (FmtInfo) { \
733  .rw = { .elems = N, .packed = (N) > 1 }, \
734  .swizzle = SWIZ, \
735  __VA_ARGS__ \
736 }
737 
738 #define RGBA SWS_SWIZZLE(0, 1, 2, 3)
739 #define BGRA SWS_SWIZZLE(2, 1, 0, 3)
740 #define ARGB SWS_SWIZZLE(3, 0, 1, 2)
741 #define ABGR SWS_SWIZZLE(3, 2, 1, 0)
742 #define AVYU SWS_SWIZZLE(3, 2, 0, 1)
743 #define VYUA SWS_SWIZZLE(2, 0, 1, 3)
744 #define UYVA SWS_SWIZZLE(1, 0, 2, 3)
745 #define VUYA BGRA
746 
747 static FmtInfo fmt_info_irregular(enum AVPixelFormat fmt)
748 {
749  switch (fmt) {
750  /* Bitstream formats */
751  case AV_PIX_FMT_MONOWHITE:
752  case AV_PIX_FMT_MONOBLACK:
753  return BITSTREAM_FMT(RGBA, 3, false);
754  case AV_PIX_FMT_RGB4: return BITSTREAM_FMT(RGBA, 1, true, .pack = {{ 1, 2, 1 }});
755  case AV_PIX_FMT_BGR4: return BITSTREAM_FMT(BGRA, 1, true, .pack = {{ 1, 2, 1 }});
756 
757  /* Sub-packed 8-bit aligned formats */
758  case AV_PIX_FMT_RGB4_BYTE: return SUBPACKED_FMT(RGBA, 1, 2, 1);
759  case AV_PIX_FMT_BGR4_BYTE: return SUBPACKED_FMT(BGRA, 1, 2, 1);
760  case AV_PIX_FMT_RGB8: return SUBPACKED_FMT(RGBA, 3, 3, 2);
761  case AV_PIX_FMT_BGR8: return SUBPACKED_FMT(BGRA, 2, 3, 3);
762 
763  /* Sub-packed 16-bit aligned formats */
764  case AV_PIX_FMT_RGB565LE:
765  case AV_PIX_FMT_RGB565BE:
766  return SUBPACKED_FMT(RGBA, 5, 6, 5);
767  case AV_PIX_FMT_BGR565LE:
768  case AV_PIX_FMT_BGR565BE:
769  return SUBPACKED_FMT(BGRA, 5, 6, 5);
770  case AV_PIX_FMT_RGB555LE:
771  case AV_PIX_FMT_RGB555BE:
772  return SUBPACKED_FMT(RGBA, 5, 5, 5);
773  case AV_PIX_FMT_BGR555LE:
774  case AV_PIX_FMT_BGR555BE:
775  return SUBPACKED_FMT(BGRA, 5, 5, 5);
776  case AV_PIX_FMT_RGB444LE:
777  case AV_PIX_FMT_RGB444BE:
778  return SUBPACKED_FMT(RGBA, 4, 4, 4);
779  case AV_PIX_FMT_BGR444LE:
780  case AV_PIX_FMT_BGR444BE:
781  return SUBPACKED_FMT(BGRA, 4, 4, 4);
782 
783  /* Sub-packed 32-bit aligned formats */
784  case AV_PIX_FMT_X2RGB10LE:
785  case AV_PIX_FMT_X2RGB10BE:
786  return SUBPACKED_FMT(ARGB, 2, 10, 10, 10);
787  case AV_PIX_FMT_X2BGR10LE:
788  case AV_PIX_FMT_X2BGR10BE:
789  return SUBPACKED_FMT(ABGR, 2, 10, 10, 10);
790  case AV_PIX_FMT_XV30LE:
791  case AV_PIX_FMT_XV30BE:
792  return SUBPACKED_FMT(AVYU, 2, 10, 10, 10);
793  case AV_PIX_FMT_V30XLE:
794  case AV_PIX_FMT_V30XBE:
795  return SUBPACKED_FMT(VYUA, 10, 10, 10, 2);
796 
797  /* 3-component formats with extra padding */
798  case AV_PIX_FMT_RGB0: return PACKED_FMT(RGBA, 4);
799  case AV_PIX_FMT_BGR0: return PACKED_FMT(BGRA, 4);
800  case AV_PIX_FMT_0RGB: return PACKED_FMT(ARGB, 4);
801  case AV_PIX_FMT_0BGR: return PACKED_FMT(ABGR, 4);
802  case AV_PIX_FMT_VUYX: return PACKED_FMT(VUYA, 4);
803  case AV_PIX_FMT_XV36LE:
804  case AV_PIX_FMT_XV36BE:
805  return PACKED_FMT(UYVA, 4, .shift = 4);
806  case AV_PIX_FMT_XV48LE:
807  case AV_PIX_FMT_XV48BE:
808  return PACKED_FMT(UYVA, 4);
809  }
810 
811  return (FmtInfo) {0};
812 }
813 
814 struct comp {
815  int index;
816  int plane;
817  int offset;
818 };
819 
820 /* Compare by (plane, offset) */
821 static int cmp_comp(const void *a, const void *b) {
822  const struct comp *ca = a;
823  const struct comp *cb = b;
824  if (ca->plane != cb->plane)
825  return ca->plane - cb->plane;
826  return ca->offset - cb->offset;
827 }
828 
829 static int fmt_analyze_regular(const AVPixFmtDescriptor *desc, SwsReadWriteOp *rw_op,
830  SwsSwizzleOp *swizzle, int *shift)
831 {
832  if (desc->nb_components == 2) {
833  /* YA formats */
834  *swizzle = SWS_SWIZZLE(0, 3, 1, 2);
835  } else {
836  /* Sort by increasing component order */
837  struct comp sorted[4] = { {0}, {1}, {2}, {3} };
838  for (int i = 0; i < desc->nb_components; i++) {
839  sorted[i].plane = desc->comp[i].plane;
840  sorted[i].offset = desc->comp[i].offset;
841  }
842 
843  qsort(sorted, desc->nb_components, sizeof(struct comp), cmp_comp);
844 
845  SwsSwizzleOp swiz = SWS_SWIZZLE(0, 1, 2, 3);
846  for (int i = 0; i < desc->nb_components; i++)
847  swiz.in[i] = sorted[i].index;
848  *swizzle = swiz;
849  }
850 
851  *shift = desc->comp[0].shift;
852  *rw_op = (SwsReadWriteOp) {
853  .elems = desc->nb_components,
854  .packed = desc->nb_components > 1 && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR),
855  };
856  return 0;
857 }
858 
859 static int fmt_analyze(enum AVPixelFormat fmt, SwsReadWriteOp *rw_op,
860  SwsPackOp *pack_op, SwsSwizzleOp *swizzle, int *shift,
861  SwsPixelType *pixel_type, SwsPixelType *raw_type)
862 {
863  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
864  if (!desc)
865  return AVERROR(EINVAL);
866 
867  /* No support for subsampled formats at the moment */
868  if (desc->log2_chroma_w || desc->log2_chroma_h)
869  return AVERROR(ENOTSUP);
870 
871  /* No support for semi-planar formats at the moment */
872  if (desc->flags & AV_PIX_FMT_FLAG_PLANAR &&
873  av_pix_fmt_count_planes(fmt) < desc->nb_components)
874  return AVERROR(ENOTSUP);
875 
876  *pixel_type = *raw_type = fmt_pixel_type(fmt);
877  if (!*pixel_type)
878  return AVERROR(ENOTSUP);
879 
880  if (is_regular_fmt(fmt)) {
881  *pack_op = (SwsPackOp) {0};
882  return fmt_analyze_regular(desc, rw_op, swizzle, shift);
883  }
884 
885  FmtInfo info = fmt_info_irregular(fmt);
886  if (!info.rw.elems)
887  return AVERROR(ENOTSUP);
888 
889  *rw_op = info.rw;
890  *pack_op = info.pack;
891  *swizzle = info.swizzle;
892  *shift = info.shift;
893 
894  if (info.pack.pattern[0]) {
895  const int sum = info.pack.pattern[0] + info.pack.pattern[1] +
896  info.pack.pattern[2] + info.pack.pattern[3];
897  if (sum > 16)
898  *raw_type = SWS_PIXEL_U32;
899  else if (sum > 8)
900  *raw_type = SWS_PIXEL_U16;
901  else
902  *raw_type = SWS_PIXEL_U8;
903  }
904 
905  return 0;
906 }
907 
908 static SwsSwizzleOp swizzle_inv(SwsSwizzleOp swiz) {
909  /* Input[x] =: Output[swizzle.x] */
910  unsigned out[4];
911  out[swiz.x] = 0;
912  out[swiz.y] = 1;
913  out[swiz.z] = 2;
914  out[swiz.w] = 3;
915  return (SwsSwizzleOp) {{ .x = out[0], out[1], out[2], out[3] }};
916 }
917 
918 /**
919  * This initializes all absent components explicitly to zero. There is no
920  * need to worry about the correct neutral value as fmt_decode() will
921  * implicitly ignore and overwrite absent components in any case. This function
922  * is just to ensure that we don't operate on undefined memory. In most cases,
923  * it will end up getting pushed towards the output or optimized away entirely
924  * by the optimization pass.
925  */
926 static SwsConst fmt_clear(enum AVPixelFormat fmt)
927 {
928  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
929  const bool has_chroma = desc->nb_components >= 3;
930  const bool has_alpha = desc->flags & AV_PIX_FMT_FLAG_ALPHA;
931 
932  SwsConst c = {0};
933  if (!has_chroma)
934  c.q4[1] = c.q4[2] = Q0;
935  if (!has_alpha)
936  c.q4[3] = Q0;
937 
938  return c;
939 }
940 
941 #if HAVE_BIGENDIAN
942 # define NATIVE_ENDIAN_FLAG AV_PIX_FMT_FLAG_BE
943 #else
944 # define NATIVE_ENDIAN_FLAG 0
945 #endif
946 
947 int ff_sws_decode_pixfmt(SwsOpList *ops, enum AVPixelFormat fmt)
948 {
949  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
950  SwsPixelType pixel_type, raw_type;
951  SwsReadWriteOp rw_op;
952  SwsSwizzleOp swizzle;
953  SwsPackOp unpack;
954  SwsComps *comps = &ops->comps_src;
955  int shift;
956 
957  RET(fmt_analyze(fmt, &rw_op, &unpack, &swizzle, &shift,
958  &pixel_type, &raw_type));
959 
960  swizzle = swizzle_inv(swizzle);
961 
962  /* Set baseline pixel content flags */
963  const int integer = ff_sws_pixel_type_is_int(raw_type);
964  const int swapped = ff_sws_pixel_type_size(raw_type) > 1 &&
965  (desc->flags & AV_PIX_FMT_FLAG_BE) != NATIVE_ENDIAN_FLAG;
966  for (int i = 0; i < rw_op.elems; i++) {
967  comps->flags[i] = (integer ? SWS_COMP_EXACT : 0) |
968  (swapped ? SWS_COMP_SWAPPED : 0);
969  }
970 
971  /* Generate value range information for simple unpacked formats */
972  if (integer && !unpack.pattern[0]) {
973  /* YA formats have desc->comp[] in the order {Y, A} instead of the
974  * canonical order {Y, U, V, A} */
975  const int is_ya = desc->nb_components == 2;
976  for (int c = 0; c < desc->nb_components; c++) {
977  const int bits = desc->comp[c].depth + shift;
978  const int idx = swizzle.in[is_ya ? 3 * c : c];
979  comps->min[idx] = Q0;
980  if (bits < 32) /* FIXME: AVRational is limited to INT_MAX */
981  comps->max[idx] = Q((1ULL << bits) - 1);
982  }
983  }
984 
985  /* TODO: handle subsampled or semipacked input formats */
986  RET(ff_sws_op_list_append(ops, &(SwsOp) {
987  .op = SWS_OP_READ,
988  .type = raw_type,
989  .rw = rw_op,
990  }));
991 
992  if (swapped) {
993  RET(ff_sws_op_list_append(ops, &(SwsOp) {
994  .op = SWS_OP_SWAP_BYTES,
995  .type = raw_type,
996  }));
997  }
998 
999  if (unpack.pattern[0]) {
1000  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1001  .op = SWS_OP_UNPACK,
1002  .type = raw_type,
1003  .pack = unpack,
1004  }));
1005 
1006  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1007  .op = SWS_OP_CONVERT,
1008  .type = raw_type,
1009  .convert.to = pixel_type,
1010  }));
1011  }
1012 
1013  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1014  .op = SWS_OP_SWIZZLE,
1015  .type = pixel_type,
1016  .swizzle = swizzle,
1017  }));
1018 
1019  if (shift) {
1020  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1021  .op = SWS_OP_RSHIFT,
1022  .type = pixel_type,
1023  .c.u = shift,
1024  }));
1025  }
1026 
1027  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1028  .op = SWS_OP_CLEAR,
1029  .type = pixel_type,
1030  .c = fmt_clear(fmt),
1031  }));
1032 
1033  return 0;
1034 }
1035 
1036 int ff_sws_encode_pixfmt(SwsOpList *ops, enum AVPixelFormat fmt)
1037 {
1038  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
1039  SwsPixelType pixel_type, raw_type;
1040  SwsReadWriteOp rw_op;
1041  SwsSwizzleOp swizzle;
1042  SwsPackOp pack;
1043  int shift;
1044 
1045  RET(fmt_analyze(fmt, &rw_op, &pack, &swizzle, &shift,
1046  &pixel_type, &raw_type));
1047 
1048  if (shift) {
1049  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1050  .op = SWS_OP_LSHIFT,
1051  .type = pixel_type,
1052  .c.u = shift,
1053  }));
1054  }
1055 
1056  if (rw_op.elems > desc->nb_components) {
1057  /* Format writes unused alpha channel, clear it explicitly for sanity */
1058  av_assert1(!(desc->flags & AV_PIX_FMT_FLAG_ALPHA));
1059  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1060  .op = SWS_OP_CLEAR,
1061  .type = pixel_type,
1062  .c.q4[3] = Q0,
1063  }));
1064  }
1065 
1066  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1067  .op = SWS_OP_SWIZZLE,
1068  .type = pixel_type,
1069  .swizzle = swizzle,
1070  }));
1071 
1072  if (pack.pattern[0]) {
1073  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1074  .op = SWS_OP_CONVERT,
1075  .type = pixel_type,
1076  .convert.to = raw_type,
1077  }));
1078 
1079  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1080  .op = SWS_OP_PACK,
1081  .type = raw_type,
1082  .pack = pack,
1083  }));
1084  }
1085 
1086  if (ff_sws_pixel_type_size(raw_type) > 1 &&
1087  (desc->flags & AV_PIX_FMT_FLAG_BE) != NATIVE_ENDIAN_FLAG) {
1088  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1089  .op = SWS_OP_SWAP_BYTES,
1090  .type = raw_type,
1091  }));
1092  }
1093 
1094  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1095  .op = SWS_OP_WRITE,
1096  .type = raw_type,
1097  .rw = rw_op,
1098  }));
1099 
1100  return 0;
1101 }
1102 
1103 static inline AVRational av_neg_q(AVRational x)
1104 {
1105  return (AVRational) { -x.num, x.den };
1106 }
1107 
1108 static SwsLinearOp fmt_encode_range(const SwsFormat *fmt, bool *incomplete)
1109 {
1110  SwsLinearOp c = { .m = {
1111  { Q1, Q0, Q0, Q0, Q0 },
1112  { Q0, Q1, Q0, Q0, Q0 },
1113  { Q0, Q0, Q1, Q0, Q0 },
1114  { Q0, Q0, Q0, Q1, Q0 },
1115  }};
1116 
1117  const int depth0 = fmt->desc->comp[0].depth;
1118  const int depth1 = fmt->desc->comp[1].depth;
1119  const int depth2 = fmt->desc->comp[2].depth;
1120  const int depth3 = fmt->desc->comp[3].depth;
1121 
1122  if (fmt->desc->flags & AV_PIX_FMT_FLAG_FLOAT)
1123  return c; /* floats are directly output as-is */
1124 
1125  av_assert0(depth0 < 32 && depth1 < 32 && depth2 < 32 && depth3 < 32);
1126  if (fmt->csp == AVCOL_SPC_RGB || (fmt->desc->flags & AV_PIX_FMT_FLAG_XYZ)) {
1127  c.m[0][0] = Q((1 << depth0) - 1);
1128  c.m[1][1] = Q((1 << depth1) - 1);
1129  c.m[2][2] = Q((1 << depth2) - 1);
1130  } else if (fmt->range == AVCOL_RANGE_JPEG) {
1131  /* Full range YUV */
1132  c.m[0][0] = Q((1 << depth0) - 1);
1133  if (fmt->desc->nb_components >= 3) {
1134  /* This follows the ITU-R convention, which is slightly different
1135  * from the JFIF convention. */
1136  c.m[1][1] = Q((1 << depth1) - 1);
1137  c.m[2][2] = Q((1 << depth2) - 1);
1138  c.m[1][4] = Q(1 << (depth1 - 1));
1139  c.m[2][4] = Q(1 << (depth2 - 1));
1140  }
1141  } else {
1142  /* Limited range YUV */
1143  if (fmt->range == AVCOL_RANGE_UNSPECIFIED)
1144  *incomplete = true;
1145  c.m[0][0] = Q(219 << (depth0 - 8));
1146  c.m[0][4] = Q( 16 << (depth0 - 8));
1147  if (fmt->desc->nb_components >= 3) {
1148  c.m[1][1] = Q(224 << (depth1 - 8));
1149  c.m[2][2] = Q(224 << (depth2 - 8));
1150  c.m[1][4] = Q(128 << (depth1 - 8));
1151  c.m[2][4] = Q(128 << (depth2 - 8));
1152  }
1153  }
1154 
1155  if (fmt->desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
1156  const bool is_ya = fmt->desc->nb_components == 2;
1157  c.m[3][3] = Q((1 << (is_ya ? depth1 : depth3)) - 1);
1158  }
1159 
1160  if (fmt->format == AV_PIX_FMT_MONOWHITE) {
1161  /* This format is inverted, 0 = white, 1 = black */
1162  c.m[0][4] = av_add_q(c.m[0][4], c.m[0][0]);
1163  c.m[0][0] = av_neg_q(c.m[0][0]);
1164  }
1165 
1166  c.mask = ff_sws_linear_mask(c);
1167  return c;
1168 }
1169 
1170 static SwsLinearOp fmt_decode_range(const SwsFormat *fmt, bool *incomplete)
1171 {
1172  SwsLinearOp c = fmt_encode_range(fmt, incomplete);
1173 
1174  /* Invert main diagonal + offset: x = s * y + k ==> y = (x - k) / s */
1175  for (int i = 0; i < 4; i++) {
1176  av_assert1(c.m[i][i].num);
1177  c.m[i][i] = av_inv_q(c.m[i][i]);
1178  c.m[i][4] = av_mul_q(c.m[i][4], av_neg_q(c.m[i][i]));
1179  }
1180 
1181  /* Explicitly initialize alpha for sanity */
1182  if (!(fmt->desc->flags & AV_PIX_FMT_FLAG_ALPHA))
1183  c.m[3][4] = Q1;
1184 
1185  c.mask = ff_sws_linear_mask(c);
1186  return c;
1187 }
1188 
1189 static AVRational *generate_bayer_matrix(const int size_log2)
1190 {
1191  const int size = 1 << size_log2;
1192  const int num_entries = size * size;
1193  AVRational *m = av_refstruct_allocz(sizeof(*m) * num_entries);
1194  av_assert1(size_log2 < 16);
1195  if (!m)
1196  return NULL;
1197 
1198  /* Start with a 1x1 matrix */
1199  m[0] = Q0;
1200 
1201  /* Generate three copies of the current, appropriately scaled and offset */
1202  for (int sz = 1; sz < size; sz <<= 1) {
1203  const int den = 4 * sz * sz;
1204  for (int y = 0; y < sz; y++) {
1205  for (int x = 0; x < sz; x++) {
1206  const AVRational cur = m[y * size + x];
1207  m[(y + sz) * size + x + sz] = av_add_q(cur, av_make_q(1, den));
1208  m[(y ) * size + x + sz] = av_add_q(cur, av_make_q(2, den));
1209  m[(y + sz) * size + x ] = av_add_q(cur, av_make_q(3, den));
1210  }
1211  }
1212  }
1213 
1214  /**
1215  * To correctly round, we need to evenly distribute the result on [0, 1),
1216  * giving an average value of 1/2.
1217  *
1218  * After the above construction, we have a matrix with average value:
1219  * [ 0/N + 1/N + 2/N + ... (N-1)/N ] / N = (N-1)/(2N)
1220  * where N = size * size is the total number of entries.
1221  *
1222  * To make the average value equal to 1/2 = N/(2N), add a bias of 1/(2N).
1223  */
1224  for (int i = 0; i < num_entries; i++)
1225  m[i] = av_add_q(m[i], av_make_q(1, 2 * num_entries));
1226 
1227  return m;
1228 }
1229 
1230 static bool trc_is_hdr(enum AVColorTransferCharacteristic trc)
1231 {
1232  static_assert(AVCOL_TRC_NB == 19, "Update this list when adding TRCs");
1233  static_assert(AVCOL_TRC_EXT_NB == 257, "Update this list when adding TRCs");
1234  switch (trc) {
1235  case AVCOL_TRC_LOG:
1236  case AVCOL_TRC_LOG_SQRT:
1237  case AVCOL_TRC_V_LOG:
1238  case AVCOL_TRC_SMPTEST2084:
1239  case AVCOL_TRC_ARIB_STD_B67:
1240  return true;
1241  default:
1242  return false;
1243  }
1244 }
1245 
1246 static int fmt_dither(SwsContext *ctx, SwsOpList *ops,
1247  const SwsPixelType type,
1248  const SwsFormat *src, const SwsFormat *dst)
1249 {
1250  SwsDither mode = ctx->dither;
1251  SwsDitherOp dither;
1252  const int bpc = dst->desc->comp[0].depth;
1253 
1254  if (mode == SWS_DITHER_AUTO) {
1255  /* Visual threshold of perception: 12 bits for SDR, 14 bits for HDR */
1256  const int jnd_bits = trc_is_hdr(dst->color.trc) ? 14 : 12;
1257  mode = bpc >= jnd_bits ? SWS_DITHER_NONE : SWS_DITHER_BAYER;
1258  }
1259 
1260  switch (mode) {
1261  case SWS_DITHER_NONE:
1262  if (ctx->flags & SWS_ACCURATE_RND) {
1263  /* Add constant 0.5 for correct rounding */
1264  AVRational *bias = av_refstruct_allocz(sizeof(*bias));
1265  if (!bias)
1266  return AVERROR(ENOMEM);
1267  *bias = (AVRational) {1, 2};
1268  return ff_sws_op_list_append(ops, &(SwsOp) {
1269  .op = SWS_OP_DITHER,
1270  .type = type,
1271  .dither.matrix = bias,
1272  .dither.min = *bias,
1273  .dither.max = *bias,
1274  });
1275  } else {
1276  return 0; /* No-op */
1277  }
1278  case SWS_DITHER_BAYER:
1279  /* Hardcode 16x16 matrix for now; in theory we could adjust this
1280  * based on the expected level of precision in the output, since lower
1281  * bit depth outputs can suffice with smaller dither matrices; however
1282  * in practice we probably want to use error diffusion for such low bit
1283  * depths anyway */
1284  dither.size_log2 = 4;
1285  dither.matrix = generate_bayer_matrix(dither.size_log2);
1286  if (!dither.matrix)
1287  return AVERROR(ENOMEM);
1288 
1289  const int size = 1 << dither.size_log2;
1290  dither.min = dither.max = dither.matrix[0];
1291  for (int i = 1; i < size * size; i++) {
1292  if (av_cmp_q(dither.min, dither.matrix[i]) > 0)
1293  dither.min = dither.matrix[i];
1294  if (av_cmp_q(dither.matrix[i], dither.max) > 0)
1295  dither.max = dither.matrix[i];
1296  }
1297 
1298  /* Brute-forced offsets; minimizes quantization error across a 16x16
1299  * bayer dither pattern for standard RGBA and YUVA pixel formats */
1300  const int offsets_16x16[4] = {0, 3, 2, 5};
1301  for (int i = 0; i < 4; i++) {
1302  av_assert0(offsets_16x16[i] <= INT8_MAX);
1303  dither.y_offset[i] = offsets_16x16[i];
1304  }
1305 
1306  if (src->desc->nb_components < 3 && bpc >= 8) {
1307  /**
1308  * For high-bit-depth sources without chroma, use same matrix
1309  * offset for all color channels. This prevents introducing color
1310  * noise in grayscale images; and also allows optimizing the dither
1311  * operation. Skipped for low bit depth (<8 bpc) as the loss in
1312  * PSNR, from the inability to diffuse error among all three
1313  * channels, can be substantial.
1314  *
1315  * This shifts: { X, Y, Z, W } -> { X, X, X, Y }
1316  */
1317  dither.y_offset[3] = dither.y_offset[1];
1318  dither.y_offset[1] = dither.y_offset[2] = dither.y_offset[0];
1319  }
1320 
1321  return ff_sws_op_list_append(ops, &(SwsOp) {
1322  .op = SWS_OP_DITHER,
1323  .type = type,
1324  .dither = dither,
1325  });
1326  case SWS_DITHER_ED:
1327  case SWS_DITHER_A_DITHER:
1328  case SWS_DITHER_X_DITHER:
1329  return AVERROR(ENOTSUP);
1330 
1331  case SWS_DITHER_NB:
1332  break;
1333  }
1334 
1335  av_unreachable("Invalid dither mode");
1336  return AVERROR(EINVAL);
1337 }
1338 
1339 static inline SwsLinearOp
1340 linear_mat3(const AVRational m00, const AVRational m01, const AVRational m02,
1341  const AVRational m10, const AVRational m11, const AVRational m12,
1342  const AVRational m20, const AVRational m21, const AVRational m22)
1343 {
1344  SwsLinearOp c = {{
1345  { m00, m01, m02, Q0, Q0 },
1346  { m10, m11, m12, Q0, Q0 },
1347  { m20, m21, m22, Q0, Q0 },
1348  { Q0, Q0, Q0, Q1, Q0 },
1349  }};
1350 
1351  c.mask = ff_sws_linear_mask(c);
1352  return c;
1353 }
1354 
1355 int ff_sws_decode_colors(SwsContext *ctx, SwsPixelType type,
1356  SwsOpList *ops, const SwsFormat *fmt, bool *incomplete)
1357 {
1358  const AVLumaCoefficients *c = av_csp_luma_coeffs_from_avcsp(fmt->csp);
1359  const SwsPixelType pixel_type = fmt_pixel_type(fmt->format);
1360  if (!pixel_type)
1361  return AVERROR(ENOTSUP);
1362 
1363  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1364  .op = SWS_OP_CONVERT,
1365  .type = pixel_type,
1366  .convert.to = type,
1367  }));
1368 
1369  /* Decode pixel format into standardized range */
1370  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1371  .type = type,
1372  .op = SWS_OP_LINEAR,
1373  .lin = fmt_decode_range(fmt, incomplete),
1374  }));
1375 
1376  /* Final step, decode colorspace */
1377  switch (fmt->csp) {
1378  case AVCOL_SPC_RGB:
1379  return 0;
1380  case AVCOL_SPC_UNSPECIFIED:
1381  c = av_csp_luma_coeffs_from_avcsp(AVCOL_SPC_BT470BG);
1382  *incomplete = true;
1383  /* fall through */
1384  case AVCOL_SPC_FCC:
1385  case AVCOL_SPC_BT470BG:
1386  case AVCOL_SPC_SMPTE170M:
1387  case AVCOL_SPC_BT709:
1388  case AVCOL_SPC_SMPTE240M:
1389  case AVCOL_SPC_BT2020_NCL: {
1390  AVRational crg = av_sub_q(Q0, av_div_q(c->cr, c->cg));
1391  AVRational cbg = av_sub_q(Q0, av_div_q(c->cb, c->cg));
1392  AVRational m02 = av_mul_q(Q(2), av_sub_q(Q1, c->cr));
1393  AVRational m21 = av_mul_q(Q(2), av_sub_q(Q1, c->cb));
1394  AVRational m11 = av_mul_q(cbg, m21);
1395  AVRational m12 = av_mul_q(crg, m02);
1396 
1397  return ff_sws_op_list_append(ops, &(SwsOp) {
1398  .type = type,
1399  .op = SWS_OP_LINEAR,
1400  .lin = linear_mat3(
1401  Q1, Q0, m02,
1402  Q1, m11, m12,
1403  Q1, m21, Q0
1404  ),
1405  });
1406  }
1407 
1408  case AVCOL_SPC_YCGCO:
1409  return ff_sws_op_list_append(ops, &(SwsOp) {
1410  .type = type,
1411  .op = SWS_OP_LINEAR,
1412  .lin = linear_mat3(
1413  Q1, Q(-1), Q( 1),
1414  Q1, Q( 1), Q( 0),
1415  Q1, Q(-1), Q(-1)
1416  ),
1417  });
1418 
1419  case AVCOL_SPC_BT2020_CL:
1420  case AVCOL_SPC_SMPTE2085:
1421  case AVCOL_SPC_CHROMA_DERIVED_NCL:
1422  case AVCOL_SPC_CHROMA_DERIVED_CL:
1423  case AVCOL_SPC_ICTCP:
1424  case AVCOL_SPC_IPT_C2:
1425  case AVCOL_SPC_YCGCO_RE:
1426  case AVCOL_SPC_YCGCO_RO:
1427  return AVERROR(ENOTSUP);
1428 
1429  case AVCOL_SPC_RESERVED:
1430  return AVERROR(EINVAL);
1431 
1432  case AVCOL_SPC_NB:
1433  break;
1434  }
1435 
1436  av_unreachable("Corrupt AVColorSpace value?");
1437  return AVERROR(EINVAL);
1438 }
1439 
1440 int ff_sws_encode_colors(SwsContext *ctx, SwsPixelType type,
1441  SwsOpList *ops, const SwsFormat *src,
1442  const SwsFormat *dst, bool *incomplete)
1443 {
1444  const AVLumaCoefficients *c = av_csp_luma_coeffs_from_avcsp(dst->csp);
1445  const SwsPixelType pixel_type = fmt_pixel_type(dst->format);
1446  if (!pixel_type)
1447  return AVERROR(ENOTSUP);
1448 
1449  switch (dst->csp) {
1450  case AVCOL_SPC_RGB:
1451  break;
1452  case AVCOL_SPC_UNSPECIFIED:
1453  c = av_csp_luma_coeffs_from_avcsp(AVCOL_SPC_BT470BG);
1454  *incomplete = true;
1455  /* fall through */
1456  case AVCOL_SPC_FCC:
1457  case AVCOL_SPC_BT470BG:
1458  case AVCOL_SPC_SMPTE170M:
1459  case AVCOL_SPC_BT709:
1460  case AVCOL_SPC_SMPTE240M:
1461  case AVCOL_SPC_BT2020_NCL: {
1462  AVRational cb1 = av_sub_q(c->cb, Q1);
1463  AVRational cr1 = av_sub_q(c->cr, Q1);
1464  AVRational m20 = av_make_q(1,2);
1465  AVRational m10 = av_mul_q(m20, av_div_q(c->cr, cb1));
1466  AVRational m11 = av_mul_q(m20, av_div_q(c->cg, cb1));
1467  AVRational m21 = av_mul_q(m20, av_div_q(c->cg, cr1));
1468  AVRational m22 = av_mul_q(m20, av_div_q(c->cb, cr1));
1469 
1470  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1471  .type = type,
1472  .op = SWS_OP_LINEAR,
1473  .lin = linear_mat3(
1474  c->cr, c->cg, c->cb,
1475  m10, m11, m20,
1476  m20, m21, m22
1477  ),
1478  }));
1479  break;
1480  }
1481 
1482  case AVCOL_SPC_YCGCO:
1483  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1484  .type = type,
1485  .op = SWS_OP_LINEAR,
1486  .lin = linear_mat3(
1487  av_make_q( 1, 4), av_make_q(1, 2), av_make_q( 1, 4),
1488  av_make_q( 1, 2), av_make_q(0, 1), av_make_q(-1, 2),
1489  av_make_q(-1, 4), av_make_q(1, 2), av_make_q(-1, 4)
1490  ),
1491  }));
1492  break;
1493 
1494  case AVCOL_SPC_BT2020_CL:
1495  case AVCOL_SPC_SMPTE2085:
1496  case AVCOL_SPC_CHROMA_DERIVED_NCL:
1497  case AVCOL_SPC_CHROMA_DERIVED_CL:
1498  case AVCOL_SPC_ICTCP:
1499  case AVCOL_SPC_IPT_C2:
1500  case AVCOL_SPC_YCGCO_RE:
1501  case AVCOL_SPC_YCGCO_RO:
1502  return AVERROR(ENOTSUP);
1503 
1504  case AVCOL_SPC_RESERVED:
1505  case AVCOL_SPC_NB:
1506  return AVERROR(EINVAL);
1507  }
1508 
1509  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1510  .type = type,
1511  .op = SWS_OP_LINEAR,
1512  .lin = fmt_encode_range(dst, incomplete),
1513  }));
1514 
1515  if (!(dst->desc->flags & AV_PIX_FMT_FLAG_FLOAT)) {
1516  SwsConst range = {0};
1517 
1518  const bool is_ya = dst->desc->nb_components == 2;
1519  for (int i = 0; i < dst->desc->nb_components; i++) {
1520  /* Clamp to legal pixel range */
1521  const int idx = i * (is_ya ? 3 : 1);
1522  range.q4[idx] = Q((1 << dst->desc->comp[i].depth) - 1);
1523  }
1524 
1525  RET(fmt_dither(ctx, ops, type, src, dst));
1526  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1527  .op = SWS_OP_MAX,
1528  .type = type,
1529  .c.q4 = { Q0, Q0, Q0, Q0 },
1530  }));
1531 
1532  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1533  .op = SWS_OP_MIN,
1534  .type = type,
1535  .c = range,
1536  }));
1537  }
1538 
1539  return ff_sws_op_list_append(ops, &(SwsOp) {
1540  .type = type,
1541  .op = SWS_OP_CONVERT,
1542  .convert.to = pixel_type,
1543  });
1544 }
1545 
1546 #endif /* CONFIG_UNSTABLE */
AVCOL_PRI_RESERVED
@ AVCOL_PRI_RESERVED
Definition: pixfmt.h:640
SWS_OP_READ
@ SWS_OP_READ
Definition: ops.h:50
AVLumaCoefficients::cr
AVRational cr
Definition: csp.h:49
AVMasteringDisplayMetadata::has_primaries
int has_primaries
Flag indicating whether the display primaries (and white point) are set.
Definition: mastering_display_metadata.h:62
ff_test_fmt
int ff_test_fmt(const SwsFormat *fmt, int output)
Definition: format.c:613
AV_PIX_FMT_XYZ12LE
@ AV_PIX_FMT_XYZ12LE
packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as lit...
Definition: pixfmt.h:196
SWS_PIXEL_U16
@ SWS_PIXEL_U16
Definition: ops.h:36
AV_PIX_FMT_YUV420P9LE
@ AV_PIX_FMT_YUV420P9LE
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:154
AVDynamicHDRPlus::params
AVHDRPlusColorTransformParams params[3]
The color transform parameters for every processing window.
Definition: hdr_dynamic_metadata.h:264
AV_PIX_FMT_XV30LE
@ AV_PIX_FMT_XV30LE
packed XVYU 4:4:4, 32bpp, (msb)2X 10V 10Y 10U(lsb), little-endian, variant of Y410 where alpha channe...
Definition: pixfmt.h:415
RET
#define RET(x)
Definition: format.c:39
AV_PIX_FMT_GRAY10BE
@ AV_PIX_FMT_GRAY10BE
Y , 10bpp, big-endian.
Definition: pixfmt.h:320
AVMasteringDisplayMetadata::max_luminance
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:57
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
AV_PIX_FMT_BAYER_GBRG16LE
@ AV_PIX_FMT_BAYER_GBRG16LE
bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, little-endian
Definition: pixfmt.h:293
SWS_OP_SWIZZLE
@ SWS_OP_SWIZZLE
Definition: ops.h:53
AV_PIX_FMT_BGR48LE
@ AV_PIX_FMT_BGR48LE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:146
SWS_DITHER_AUTO
@ SWS_DITHER_AUTO
Definition: swscale.h:81
AV_PIX_FMT_P416BE
@ AV_PIX_FMT_P416BE
interleaved chroma YUV 4:4:4, 48bpp, big-endian
Definition: pixfmt.h:398
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:140
AV_PIX_FMT_BGRA64BE
@ AV_PIX_FMT_BGRA64BE
packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:204
SWS_OP_LSHIFT
@ SWS_OP_LSHIFT
Definition: ops.h:58
SWS_OP_UNPACK
@ SWS_OP_UNPACK
Definition: ops.h:56
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:666
ff_fmt_from_frame
SwsFormat ff_fmt_from_frame(const AVFrame *frame, int field)
This function also sanitizes and strips the input data, removing irrelevant fields for certain format...
Definition: format.c:348
out
static FILE * out
Definition: movenc.c:55
cb
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:247
av_frame_get_side_data
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:659
comp
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:79
AV_PIX_FMT_RGB444LE
@ AV_PIX_FMT_RGB444LE
packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:136
SwsOpList::comps_src
SwsComps comps_src
Source component metadata associated with pixel values from each corresponding component (in plane/me...
Definition: ops.h:273
AV_PIX_FMT_GBRP16BE
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:171
AVCOL_SPC_YCGCO_RE
@ AVCOL_SPC_YCGCO_RE
YCgCo-R, even addition of bits.
Definition: pixfmt.h:718
SwsFormat::interlaced
int interlaced
Definition: format.h:79
AVColorPrimariesDesc
Struct that contains both white point location and primaries location, providing the complete descrip...
Definition: csp.h:78
AV_PIX_FMT_GBRP10BE
@ AV_PIX_FMT_GBRP10BE
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:169
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3456
SwsConst
Definition: ops.h:90
SWS_OP_CLEAR
@ SWS_OP_CLEAR
Definition: ops.h:62
ff_sws_linear_mask
uint32_t ff_sws_linear_mask(const SwsLinearOp c)
Definition: ops.c:719
AV_PIX_FMT_YUV422P14LE
@ AV_PIX_FMT_YUV422P14LE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:274
av_div_q
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
Definition: rational.c:88
AV_PIX_FMT_YUV444P12MSBBE
@ AV_PIX_FMT_YUV444P12MSBBE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), lowest bits zero, big-endian
Definition: pixfmt.h:493
AVMasteringDisplayMetadata::display_primaries
AVRational display_primaries[3][2]
CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
Definition: mastering_display_metadata.h:42
SwsSwizzleOp::z
uint8_t z
Definition: ops.h:149
AVMasteringDisplayMetadata::has_luminance
int has_luminance
Flag indicating whether the luminance (min_ and max_) have been set.
Definition: mastering_display_metadata.h:67
output
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
Definition: filter_design.txt:226
ff_sws_op_list_append
int ff_sws_op_list_append(SwsOpList *ops, SwsOp *op)
These will take over ownership of op and set it to {0}, even on failure.
Definition: ops.c:674
AV_PIX_FMT_RGBF16LE
@ AV_PIX_FMT_RGBF16LE
IEEE-754 half precision packed RGB 16:16:16, 48bpp, RGBRGB..., little-endian.
Definition: pixfmt.h:452
AV_PIX_FMT_FLAG_FLOAT
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
Definition: pixdesc.h:158
AVHDRPlusColorTransformParams
Color transform parameters at a processing window in a dynamic metadata for SMPTE 2094-40.
Definition: hdr_dynamic_metadata.h:59
ff_sws_decode_colors
int ff_sws_decode_colors(SwsContext *ctx, SwsPixelType type, SwsOpList *ops, const SwsFormat *fmt, bool *incomplete)
Append a set of operations for transforming decoded pixel values to/from normalized RGB in the specif...
mode
Definition: swscale.c:59
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:427
AVCOL_TRC_NB
@ AVCOL_TRC_NB
Not part of ABI.
Definition: pixfmt.h:688
SwsFormat::range
enum AVColorRange range
Definition: format.h:82
AV_PIX_FMT_YUVA444P10BE
@ AV_PIX_FMT_YUVA444P10BE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:185
AV_PIX_FMT_RGBA64BE
@ AV_PIX_FMT_RGBA64BE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:202
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:58
AV_PIX_FMT_YUV440P12BE
@ AV_PIX_FMT_YUV440P12BE
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:301
AV_PIX_FMT_GBRAPF32LE
@ AV_PIX_FMT_GBRAPF32LE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, little-endian.
Definition: pixfmt.h:344
Q1
#define Q1
Definition: format.c:37
AV_PIX_FMT_X2BGR10BE
@ AV_PIX_FMT_X2BGR10BE
packed BGR 10:10:10, 30bpp, (msb)2X 10B 10G 10R(lsb), big-endian, X=unused/undefined
Definition: pixfmt.h:387
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:777
SWS_DITHER_NONE
@ SWS_DITHER_NONE
Definition: swscale.h:80
SWS_OP_DITHER
@ SWS_OP_DITHER
Definition: ops.h:70
AV_PIX_FMT_GBRPF32BE
@ AV_PIX_FMT_GBRPF32BE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, big-endian.
Definition: pixfmt.h:341
av_csp_luma_coeffs_from_avcsp
const struct AVLumaCoefficients * av_csp_luma_coeffs_from_avcsp(enum AVColorSpace csp)
Retrieves the Luma coefficients necessary to construct a conversion matrix from an enum constant desc...
Definition: csp.c:58
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:57
AV_PIX_FMT_P412BE
@ AV_PIX_FMT_P412BE
interleaved chroma YUV 4:4:4, 36bpp, data in the high bits, big-endian
Definition: pixfmt.h:429
sws_test_primaries
int sws_test_primaries(enum AVColorPrimaries prim, int output)
Test if a given set of color primaries is supported.
Definition: format.c:589
AVCOL_SPC_NB
@ AVCOL_SPC_NB
Not part of ABI.
Definition: pixfmt.h:720
b
#define b
Definition: input.c:42
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:669
AV_PIX_FMT_P010BE
@ AV_PIX_FMT_P010BE
like NV12, with 10bpp per component, data in the high bits, zeros in the low bits,...
Definition: pixfmt.h:308
AV_PIX_FMT_MONOWHITE
@ AV_PIX_FMT_MONOWHITE
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb.
Definition: pixfmt.h:82
AV_PIX_FMT_YUV420P14BE
@ AV_PIX_FMT_YUV420P14BE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:269
integer
int integer
Definition: swresample_internal.h:37
AV_PIX_FMT_YUV420P16LE
@ AV_PIX_FMT_YUV420P16LE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:128
AVCOL_SPC_RGB
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
Definition: pixfmt.h:701
AV_PIX_FMT_GBRP14BE
@ AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:281
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:76
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:102
AVLumaCoefficients
Struct containing luma coefficients to be used for RGB to YUV/YCoCg, or similar calculations.
Definition: csp.h:48
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
SWS_PIXEL_U32
@ SWS_PIXEL_U32
Definition: ops.h:37
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:636
AV_PIX_FMT_YUV422P9BE
@ AV_PIX_FMT_YUV422P9BE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:163
AV_PIX_FMT_YUVA444P9BE
@ AV_PIX_FMT_YUVA444P9BE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:179
av_sub_q
AVRational av_sub_q(AVRational b, AVRational c)
Subtract one rational from another.
Definition: rational.c:101
AV_PIX_FMT_BAYER_GRBG16BE
@ AV_PIX_FMT_BAYER_GRBG16BE
bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, big-endian
Definition: pixfmt.h:296
format.h
AV_PIX_FMT_GRAY10LE
@ AV_PIX_FMT_GRAY10LE
Y , 10bpp, little-endian.
Definition: pixfmt.h:321
AV_PIX_FMT_GRAYF32LE
@ AV_PIX_FMT_GRAYF32LE
IEEE-754 single precision Y, 32bpp, little-endian.
Definition: pixfmt.h:364
AV_PIX_FMT_GBRAP14BE
@ AV_PIX_FMT_GBRAP14BE
planar GBR 4:4:4:4 56bpp, big-endian
Definition: pixfmt.h:432
AVCOL_SPC_BT2020_CL
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:712
ff_sws_pixel_type_size
int ff_sws_pixel_type_size(SwsPixelType type)
Definition: ops.c:68
sws_test_hw_format
int sws_test_hw_format(enum AVPixelFormat format)
Test if a given hardware pixel format is supported.
Definition: format.c:561
AV_PIX_FMT_VULKAN
@ AV_PIX_FMT_VULKAN
Vulkan hardware images.
Definition: pixfmt.h:379
AV_PIX_FMT_RGB555BE
@ AV_PIX_FMT_RGB555BE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian , X=unused/undefined
Definition: pixfmt.h:114
AV_PIX_FMT_RGBAF16LE
@ AV_PIX_FMT_RGBAF16LE
IEEE-754 half precision packed RGBA 16:16:16:16, 64bpp, RGBARGBA..., little-endian.
Definition: pixfmt.h:404
AV_PIX_FMT_AYUV64LE
@ AV_PIX_FMT_AYUV64LE
packed AYUV 4:4:4,64bpp (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:302
AV_PIX_FMT_YUV444P16LE
@ AV_PIX_FMT_YUV444P16LE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:132
AV_PIX_FMT_BAYER_GBRG16BE
@ AV_PIX_FMT_BAYER_GBRG16BE
bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, big-endian
Definition: pixfmt.h:294
legacy_format_entries
static const LegacyFormatEntry legacy_format_entries[]
Definition: format.c:53
AV_PIX_FMT_AYUV64BE
@ AV_PIX_FMT_AYUV64BE
packed AYUV 4:4:4,64bpp (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition: pixfmt.h:303
AV_PIX_FMT_GBRAP12LE
@ AV_PIX_FMT_GBRAP12LE
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:311
SwsPixelType
SwsPixelType
Copyright (C) 2025 Niklas Haas.
Definition: ops.h:33
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:104
SwsColor::gamut
AVPrimaryCoefficients gamut
Definition: format.h:63
primaries
enum AVColorPrimaries primaries
Definition: mediacodec_wrapper.c:2612
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3496
AVCOL_SPC_BT470BG
@ AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
Definition: pixfmt.h:706
SwsComps::max
AVRational max[4]
Definition: ops.h:106
AVCOL_SPC_RESERVED
@ AVCOL_SPC_RESERVED
reserved for future use by ITU-T and ISO/IEC just like 15-255 are
Definition: pixfmt.h:704
SwsSwizzleOp::w
uint8_t w
Definition: ops.h:149
sanitize_fmt
static void sanitize_fmt(SwsFormat *fmt, const AVPixFmtDescriptor *desc)
Definition: format.c:308
SWS_PIXEL_F32
@ SWS_PIXEL_F32
Definition: ops.h:38
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AV_PIX_FMT_YUV420P12LE
@ AV_PIX_FMT_YUV420P12LE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:268
infer_prim_ref
static int infer_prim_ref(SwsColor *csp, const SwsColor *ref)
Definition: format.c:490
SwsDitherOp
Definition: ops.h:160
SwsDither
SwsDither
Definition: swscale.h:77
AV_PIX_FMT_GRAY9LE
@ AV_PIX_FMT_GRAY9LE
Y , 9bpp, little-endian.
Definition: pixfmt.h:339
AVCOL_RANGE_NB
@ AVCOL_RANGE_NB
Not part of ABI.
Definition: pixfmt.h:778
SWS_PIXEL_U8
@ SWS_PIXEL_U8
Definition: ops.h:35
SwsReadWriteOp
Definition: ops.h:109
SwsSwizzleOp
Definition: ops.h:141
ff_sws_pixel_type_is_int
bool ff_sws_pixel_type_is_int(SwsPixelType type)
Definition: ops.c:83
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
SwsColor::trc
enum AVColorTransferCharacteristic trc
Definition: format.h:62
SWS_DITHER_X_DITHER
@ SWS_DITHER_X_DITHER
Definition: swscale.h:85
AVCOL_TRC_LOG_SQRT
@ AVCOL_TRC_LOG_SQRT
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
Definition: pixfmt.h:677
AV_PIX_FMT_YUVA444P16BE
@ AV_PIX_FMT_YUVA444P16BE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition: pixfmt.h:191
AVRational::num
int num
Numerator.
Definition: rational.h:59
AV_PIX_FMT_YUV444P10BE
@ AV_PIX_FMT_YUV444P10BE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:161
refstruct.h
AV_PIX_FMT_YUV420P10LE
@ AV_PIX_FMT_YUV420P10LE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:156
AV_PIX_FMT_VUYA
@ AV_PIX_FMT_VUYA
packed VUYA 4:4:4:4, 32bpp (1 Cr & Cb sample per 1x1 Y & A samples), VUYAVUYA...
Definition: pixfmt.h:401
av_refstruct_allocz
static void * av_refstruct_allocz(size_t size)
Equivalent to av_refstruct_alloc_ext(size, 0, NULL, NULL)
Definition: refstruct.h:105
AV_PIX_FMT_YUV444P12LE
@ AV_PIX_FMT_YUV444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:276
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:283
FIELD_TOP
@ FIELD_TOP
Definition: format.h:56
AV_PIX_FMT_YUV422P12BE
@ AV_PIX_FMT_YUV422P12BE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:271
AV_PIX_FMT_YUV444P14LE
@ AV_PIX_FMT_YUV444P14LE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:278
SwsFrame
Represents a view into a single field of frame data.
Definition: format.h:193
AV_PIX_FMT_BGR8
@ AV_PIX_FMT_BGR8
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:90
avassert.h
AV_PIX_FMT_BAYER_RGGB16BE
@ AV_PIX_FMT_BAYER_RGGB16BE
bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, big-endian
Definition: pixfmt.h:292
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
SwsFormat::height
int height
Definition: format.h:78
AVCOL_PRI_RESERVED0
@ AVCOL_PRI_RESERVED0
Definition: pixfmt.h:637
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:86
AV_PIX_FMT_GBRAP16BE
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:213
dither
static const uint16_t dither[8][8]
Definition: vf_gradfun.c:46
AV_PIX_FMT_XV30BE
@ AV_PIX_FMT_XV30BE
packed XVYU 4:4:4, 32bpp, (msb)2X 10V 10Y 10U(lsb), big-endian, variant of Y410 where alpha channel i...
Definition: pixfmt.h:414
AV_PIX_FMT_YUV444P10MSBBE
@ AV_PIX_FMT_YUV444P10MSBBE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), lowest bits zero, big-endian
Definition: pixfmt.h:491
AV_PIX_FMT_GBRP16LE
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:172
AVCOL_PRI_NB
@ AVCOL_PRI_NB
Not part of ABI.
Definition: pixfmt.h:654
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:108
av_csp_primaries_desc_from_id
const AVColorPrimariesDesc * av_csp_primaries_desc_from_id(enum AVColorPrimaries prm)
Retrieves a complete gamut description from an enum constant describing the color primaries.
Definition: csp.c:95
AV_PIX_FMT_P416LE
@ AV_PIX_FMT_P416LE
interleaved chroma YUV 4:4:4, 48bpp, little-endian
Definition: pixfmt.h:399
AV_PIX_FMT_BAYER_RGGB16LE
@ AV_PIX_FMT_BAYER_RGGB16LE
bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, little-endian
Definition: pixfmt.h:291
SWS_SWIZZLE
#define SWS_SWIZZLE(X, Y, Z, W)
Definition: ops.h:153
AV_PIX_FMT_P210LE
@ AV_PIX_FMT_P210LE
interleaved chroma YUV 4:2:2, 20bpp, data in the high bits, little-endian
Definition: pixfmt.h:390
AVFormatContext::flags
int flags
Flags modifying the (de)muxer behaviour.
Definition: avformat.h:1414
AV_PIX_FMT_BAYER_BGGR8
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:285
SwsComps::min
AVRational min[4]
Definition: ops.h:106
AVCOL_SPC_SMPTE170M
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
Definition: pixfmt.h:707
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demux_decode.c:41
AV_PIX_FMT_NV20BE
@ AV_PIX_FMT_NV20BE
interleaved chroma YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:200
info
MIPS optimizations info
Definition: mips.txt:2
AV_PIX_FMT_P016BE
@ AV_PIX_FMT_P016BE
like NV12, with 16bpp per component, big-endian
Definition: pixfmt.h:324
LegacyFormatEntry::is_supported_in
uint8_t is_supported_in
Definition: format.c:47
bits
uint8_t bits
Definition: vp3data.h:128
SWS_DITHER_BAYER
@ SWS_DITHER_BAYER
Definition: swscale.h:82
AV_PIX_FMT_GBRP12LE
@ AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:280
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:42
SWS_OP_MIN
@ SWS_OP_MIN
Definition: ops.h:64
AV_PIX_FMT_YUVA420P16BE
@ AV_PIX_FMT_YUVA420P16BE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:187
sws_test_colorspace
int sws_test_colorspace(enum AVColorSpace csp, int output)
Test if a given color space is supported.
Definition: format.c:572
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
ctx
static AVFormatContext * ctx
Definition: movenc.c:49
AV_PIX_FMT_RGB4
@ AV_PIX_FMT_RGB4
packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in ...
Definition: pixfmt.h:94
SWS_OP_LINEAR
@ SWS_OP_LINEAR
Definition: ops.h:69
LegacyFormatEntry::is_supported_out
uint8_t is_supported_out
Definition: format.c:48
field
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this field
Definition: writing_filters.txt:78
AVLumaCoefficients::cg
AVRational cg
Definition: csp.h:49
AV_PIX_FMT_GBRP10LE
@ AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:170
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:73
AVCOL_PRI_SMPTE240M
@ AVCOL_PRI_SMPTE240M
identical to above, also called "SMPTE C" even though it uses D65
Definition: pixfmt.h:645
AV_PIX_FMT_GBRAPF16LE
@ AV_PIX_FMT_GBRAPF16LE
IEEE-754 half precision planar GBRA 4:4:4:4, 64bpp, little-endian.
Definition: pixfmt.h:469
AVCOL_SPC_IPT_C2
@ AVCOL_SPC_IPT_C2
SMPTE ST 2128, IPT-C2.
Definition: pixfmt.h:717
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:639
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:100
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:87
AVCOL_SPC_CHROMA_DERIVED_CL
@ AVCOL_SPC_CHROMA_DERIVED_CL
Chromaticity-derived constant luminance system.
Definition: pixfmt.h:715
AVCOL_PRI_BT470BG
@ AVCOL_PRI_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:643
AV_PIX_FMT_YUV444P10LE
@ AV_PIX_FMT_YUV444P10LE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:162
AV_PIX_FMT_BAYER_RGGB8
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:286
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:644
AV_PIX_FMT_YUVA422P10LE
@ AV_PIX_FMT_YUVA422P10LE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:184
if
if(ret)
Definition: filter_design.txt:179
Q0
#define Q0
Definition: format.c:36
AV_PIX_FMT_GBRP10MSBLE
@ AV_PIX_FMT_GBRP10MSBLE
planar GBR 4:4:4 30bpp, lowest bits zero, little-endian
Definition: pixfmt.h:496
SWS_OP_PACK
@ SWS_OP_PACK
Definition: ops.h:57
AV_PIX_FMT_BAYER_GRBG16LE
@ AV_PIX_FMT_BAYER_GRBG16LE
bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, little-endian
Definition: pixfmt.h:295
AV_PIX_FMT_YUV444P9BE
@ AV_PIX_FMT_YUV444P9BE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:159
SwsColor::frame_peak
AVRational frame_peak
Definition: format.h:66
AV_PIX_FMT_YUV422P10BE
@ AV_PIX_FMT_YUV422P10BE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:157
test_range
static int test_range(enum AVColorRange range)
Definition: format.c:603
AV_PIX_FMT_YUV422P16LE
@ AV_PIX_FMT_YUV422P16LE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:130
AV_PIX_FMT_RGB565LE
@ AV_PIX_FMT_RGB565LE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
Definition: pixfmt.h:113
AVDynamicHDRPlus::application_version
uint8_t application_version
Application version in the application defining document in ST-2094 suite.
Definition: hdr_dynamic_metadata.h:253
AV_PIX_FMT_Y216LE
@ AV_PIX_FMT_Y216LE
packed YUV 4:2:2 like YUYV422, 32bpp, little-endian
Definition: pixfmt.h:461
AV_PIX_FMT_GBRAPF32BE
@ AV_PIX_FMT_GBRAPF32BE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, big-endian.
Definition: pixfmt.h:343
AV_PIX_FMT_GBRAP12BE
@ AV_PIX_FMT_GBRAP12BE
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:310
AV_PIX_FMT_P012LE
@ AV_PIX_FMT_P012LE
like NV12, with 12bpp per component, data in the high bits, zeros in the low bits,...
Definition: pixfmt.h:408
NULL
#define NULL
Definition: coverity.c:32
AVHWFramesContext::sw_format
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:213
format
New swscale design to change SwsGraph is what coordinates multiple passes These can include cascaded scaling error diffusion and so on Or we could have separate passes for the vertical and horizontal scaling In between each SwsPass lies a fully allocated image buffer Graph passes may have different levels of e g we can have a single threaded error diffusion pass following a multi threaded scaling pass SwsGraph is internally recreated whenever the image format
Definition: swscale-v2.txt:14
AV_PIX_FMT_GBRAPF16BE
@ AV_PIX_FMT_GBRAPF16BE
IEEE-754 half precision planar GBRA 4:4:4:4, 64bpp, big-endian.
Definition: pixfmt.h:468
AVPixFmtDescriptor::nb_components
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:71
bias
static int bias(int x, int c)
Definition: vqcdec.c:115
AV_PIX_FMT_YUYV422
@ AV_PIX_FMT_YUYV422
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:74
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
av_unreachable
#define av_unreachable(msg)
Asserts that are used as compiler optimization hints depending upon ASSERT_LEVEL and NBDEBUG.
Definition: avassert.h:116
sws_is_noop
int sws_is_noop(const AVFrame *dst, const AVFrame *src)
Check if a given conversion is a noop.
Definition: format.c:638
AV_PIX_FMT_P210BE
@ AV_PIX_FMT_P210BE
interleaved chroma YUV 4:2:2, 20bpp, data in the high bits, big-endian
Definition: pixfmt.h:389
AV_PIX_FMT_RGB48LE
@ AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:110
AV_PIX_FMT_YA16LE
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:210
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:85
AV_PIX_FMT_MONOBLACK
@ AV_PIX_FMT_MONOBLACK
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb.
Definition: pixfmt.h:83
ff_infer_colors
bool ff_infer_colors(SwsColor *src, SwsColor *dst)
Definition: format.c:539
AV_PIX_FMT_YUVA422P12LE
@ AV_PIX_FMT_YUVA422P12LE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, little-endian
Definition: pixfmt.h:367
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:638
AV_PIX_FMT_BGR565LE
@ AV_PIX_FMT_BGR565LE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
Definition: pixfmt.h:118
AV_PIX_FMT_RGBA64LE
@ AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:203
AV_PIX_FMT_YUVA444P12BE
@ AV_PIX_FMT_YUVA444P12BE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, big-endian
Definition: pixfmt.h:368
sws_test_format
int sws_test_format(enum AVPixelFormat format, int output)
Test if a given (software) pixel format is supported.
Definition: format.c:556
AV_PIX_FMT_YUVA444P9LE
@ AV_PIX_FMT_YUVA444P9LE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition: pixfmt.h:180
AV_PIX_FMT_Y210LE
@ AV_PIX_FMT_Y210LE
packed YUV 4:2:2 like YUYV422, 20bpp, data in the high bits, little-endian
Definition: pixfmt.h:382
AV_FRAME_DATA_MASTERING_DISPLAY_METADATA
@ AV_FRAME_DATA_MASTERING_DISPLAY_METADATA
Mastering display metadata associated with a video frame.
Definition: frame.h:120
AV_PIX_FMT_YUVA420P16LE
@ AV_PIX_FMT_YUVA420P16LE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:188
AV_PIX_FMT_RGB8
@ AV_PIX_FMT_RGB8
packed RGB 3:3:2, 8bpp, (msb)3R 3G 2B(lsb)
Definition: pixfmt.h:93
AV_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:265
AVCOL_SPC_YCGCO
@ AVCOL_SPC_YCGCO
used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
Definition: pixfmt.h:709
AV_PIX_FMT_BGR4
@ AV_PIX_FMT_BGR4
packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in ...
Definition: pixfmt.h:91
AV_PIX_FMT_YUV440P10LE
@ AV_PIX_FMT_YUV440P10LE
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:298
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_BGR555BE
@ AV_PIX_FMT_BGR555BE
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), big-endian , X=unused/undefined
Definition: pixfmt.h:119
AV_PIX_FMT_YUVA420P9LE
@ AV_PIX_FMT_YUVA420P9LE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian
Definition: pixfmt.h:176
AV_PIX_FMT_GBRP12MSBLE
@ AV_PIX_FMT_GBRP12MSBLE
planar GBR 4:4:4 36bpp, lowest bits zero, little-endian
Definition: pixfmt.h:498
AV_PIX_FMT_YAF16BE
@ AV_PIX_FMT_YAF16BE
IEEE-754 half precision packed YA, 16 bits gray, 16 bits alpha, 32bpp, big-endian.
Definition: pixfmt.h:485
AVPixFmtDescriptor::flags
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:94
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:101
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:743
SWS_PIXEL_NONE
@ SWS_PIXEL_NONE
Definition: ops.h:34
index
int index
Definition: gxfenc.c:90
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
AV_PIX_FMT_YUV420P14LE
@ AV_PIX_FMT_YUV420P14LE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:270
AV_PIX_FMT_YUV444P14BE
@ AV_PIX_FMT_YUV444P14BE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:277
AV_PIX_FMT_BGR4_BYTE
@ AV_PIX_FMT_BGR4_BYTE
packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
Definition: pixfmt.h:92
AVCIExy::x
AVRational x
Definition: csp.h:57
AV_PIX_FMT_X2RGB10LE
@ AV_PIX_FMT_X2RGB10LE
packed RGB 10:10:10, 30bpp, (msb)2X 10R 10G 10B(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:384
AV_PIX_FMT_P212LE
@ AV_PIX_FMT_P212LE
interleaved chroma YUV 4:2:2, 24bpp, data in the high bits, little-endian
Definition: pixfmt.h:427
AV_PIX_FMT_YUV420P9BE
@ AV_PIX_FMT_YUV420P9BE
The following 12 formats have the disadvantage of needing 1 format for each bit depth.
Definition: pixfmt.h:153
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:683
AVPrimaryCoefficients::b
AVCIExy b
Definition: csp.h:65
SwsPackOp::pattern
uint8_t pattern[4]
Packed bits are assumed to be LSB-aligned within the underlying integer type; i.e.
Definition: ops.h:138
AV_PIX_FMT_YUV444P10MSBLE
@ AV_PIX_FMT_YUV444P10MSBLE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), lowest bits zero, little-endian
Definition: pixfmt.h:492
AVPrimaryCoefficients::r
AVCIExy r
Definition: csp.h:65
AV_PIX_FMT_RGBF32BE
@ AV_PIX_FMT_RGBF32BE
IEEE-754 single precision packed RGB 32:32:32, 96bpp, RGBRGB..., big-endian.
Definition: pixfmt.h:420
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:75
AV_PIX_FMT_YUV440P12LE
@ AV_PIX_FMT_YUV440P12LE
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
Definition: pixfmt.h:300
LegacyFormatEntry::is_supported_endianness
uint8_t is_supported_endianness
Definition: format.c:49
test_loc
static int test_loc(enum AVChromaLocation loc)
Definition: format.c:608
AV_PIX_FMT_GBRP10MSBBE
@ AV_PIX_FMT_GBRP10MSBBE
planar GBR 4:4:4 30bpp, lowest bits zero, big-endian
Definition: pixfmt.h:495
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
shift
static int shift(int a, int b)
Definition: bonk.c:261
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition: dsp.h:87
AV_PIX_FMT_BAYER_BGGR16LE
@ AV_PIX_FMT_BAYER_BGGR16LE
bayer, BGBG..(odd line), GRGR..(even line), 16-bit samples, little-endian
Definition: pixfmt.h:289
AV_PIX_FMT_YUV420P12BE
@ AV_PIX_FMT_YUV420P12BE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:267
AVCOL_TRC_SMPTEST2084
@ AVCOL_TRC_SMPTEST2084
Definition: pixfmt.h:684
AVCOL_SPC_YCGCO_RO
@ AVCOL_SPC_YCGCO_RO
YCgCo-R, odd addition of bits.
Definition: pixfmt.h:719
AV_PIX_FMT_YUV422P10LE
@ AV_PIX_FMT_YUV422P10LE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:158
i
#define i(width, name, range_min, range_max)
Definition: cbs_h264.c:63
AVDynamicHDRPlus::num_windows
uint8_t num_windows
The number of processing windows.
Definition: hdr_dynamic_metadata.h:259
AVCOL_TRC_LOG
@ AVCOL_TRC_LOG
"Logarithmic transfer characteristic (100:1 range)"
Definition: pixfmt.h:676
AV_PIX_FMT_RGB444BE
@ AV_PIX_FMT_RGB444BE
packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), big-endian, X=unused/undefined
Definition: pixfmt.h:137
AV_PIX_FMT_XV36BE
@ AV_PIX_FMT_XV36BE
packed XVYU 4:4:4, 48bpp, data in the high bits, zeros in the low bits, big-endian,...
Definition: pixfmt.h:417
AV_PIX_FMT_YUV422P14BE
@ AV_PIX_FMT_YUV422P14BE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:273
AV_PIX_FMT_YA16BE
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:209
size
int size
Definition: twinvq_data.h:10344
av_make_q
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
AV_PIX_FMT_GRAY12LE
@ AV_PIX_FMT_GRAY12LE
Y , 12bpp, little-endian.
Definition: pixfmt.h:319
SWS_OP_RSHIFT
@ SWS_OP_RSHIFT
Definition: ops.h:59
AV_PIX_FMT_GBRP9BE
@ AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:167
AV_PIX_FMT_FLAG_BITSTREAM
#define AV_PIX_FMT_FLAG_BITSTREAM
All values of a component are bit-wise packed end to end.
Definition: pixdesc.h:124
AVFrameSideData::data
uint8_t * data
Definition: frame.h:284
AVPrimaryCoefficients::g
AVCIExy g
Definition: csp.h:65
AVCHROMA_LOC_UNSPECIFIED
@ AVCHROMA_LOC_UNSPECIFIED
Definition: pixfmt.h:797
SwsFormat
Definition: format.h:77
AV_PIX_FMT_YUV420P10BE
@ AV_PIX_FMT_YUV420P10BE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:155
AV_PIX_FMT_RGBAF16BE
@ AV_PIX_FMT_RGBAF16BE
IEEE-754 half precision packed RGBA 16:16:16:16, 64bpp, RGBARGBA..., big-endian.
Definition: pixfmt.h:403
AV_PIX_FMT_GBRP12MSBBE
@ AV_PIX_FMT_GBRP12MSBBE
planar GBR 4:4:4 36bpp, lowest bits zero, big-endian
Definition: pixfmt.h:497
range
enum AVColorRange range
Definition: mediacodec_wrapper.c:2594
SWS_OP_WRITE
@ SWS_OP_WRITE
Definition: ops.h:51
AV_PIX_FMT_NV16
@ AV_PIX_FMT_NV16
interleaved chroma YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:198
AV_PIX_FMT_BGR444BE
@ AV_PIX_FMT_BGR444BE
packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), big-endian, X=unused/undefined
Definition: pixfmt.h:139
AV_PIX_FMT_GBRP9LE
@ AV_PIX_FMT_GBRP9LE
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:168
SwsFormat::loc
enum AVChromaLocation loc
Definition: format.h:84
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:174
AV_PIX_FMT_GBRAP10LE
@ AV_PIX_FMT_GBRAP10LE
planar GBR 4:4:4:4 40bpp, little-endian
Definition: pixfmt.h:314
AVCOL_TRC_EXT_NB
@ AVCOL_TRC_EXT_NB
Not part of ABI.
Definition: pixfmt.h:693
SwsColor
Definition: format.h:60
sws_test_transfer
int sws_test_transfer(enum AVColorTransferCharacteristic trc, int output)
Test if a given color transfer function is supported.
Definition: format.c:596
AV_PIX_FMT_BGR565BE
@ AV_PIX_FMT_BGR565BE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
Definition: pixfmt.h:117
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
SWS_DITHER_NB
@ SWS_DITHER_NB
Definition: swscale.h:86
av_pix_fmt_desc_get_id
enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc)
Definition: pixdesc.c:3475
AV_PIX_FMT_YAF32LE
@ AV_PIX_FMT_YAF32LE
IEEE-754 single precision packed YA, 32 bits gray, 32 bits alpha, 64bpp, little-endian.
Definition: pixfmt.h:483
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:263
sws_isSupportedInput
int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
Return a positive value if pix_fmt is a supported input format, 0 otherwise.
Definition: format.c:290
AV_PIX_FMT_P012BE
@ AV_PIX_FMT_P012BE
like NV12, with 12bpp per component, data in the high bits, zeros in the low bits,...
Definition: pixfmt.h:409
AV_PIX_FMT_P410LE
@ AV_PIX_FMT_P410LE
interleaved chroma YUV 4:4:4, 30bpp, data in the high bits, little-endian
Definition: pixfmt.h:393
SwsLinearOp
Definition: ops.h:167
AV_PIX_FMT_YUVA420P10LE
@ AV_PIX_FMT_YUVA420P10LE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition: pixfmt.h:182
AVCOL_SPC_CHROMA_DERIVED_NCL
@ AVCOL_SPC_CHROMA_DERIVED_NCL
Chromaticity-derived non-constant luminance system.
Definition: pixfmt.h:714
SwsColor::frame_avg
AVRational frame_avg
Definition: format.h:67
Q
#define Q(N)
Definition: format.c:35
AV_PIX_FMT_FLAG_BAYER
#define AV_PIX_FMT_FLAG_BAYER
The pixel format is following a Bayer pattern.
Definition: pixdesc.h:152
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:668
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:796
AV_PIX_FMT_AYUV
@ AV_PIX_FMT_AYUV
packed AYUV 4:4:4:4, 32bpp (1 Cr & Cb sample per 1x1 Y & A samples), AYUVAYUV...
Definition: pixfmt.h:442
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:99
AV_PIX_FMT_BGRA64LE
@ AV_PIX_FMT_BGRA64LE
packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:205
AV_PIX_FMT_YUVA422P10BE
@ AV_PIX_FMT_YUVA422P10BE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:183
AVCOL_SPC_SMPTE240M
@ AVCOL_SPC_SMPTE240M
derived from 170M primaries and D65 white point, 170M is derived from BT470 System M's primaries
Definition: pixfmt.h:708
AV_PIX_FMT_UYVA
@ AV_PIX_FMT_UYVA
packed UYVA 4:4:4:4, 32bpp (1 Cr & Cb sample per 1x1 Y & A samples), UYVAUYVA...
Definition: pixfmt.h:444
AV_PIX_FMT_YUVA444P12LE
@ AV_PIX_FMT_YUVA444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), 12b alpha, little-endian
Definition: pixfmt.h:369
AV_PIX_FMT_YUVA422P9BE
@ AV_PIX_FMT_YUVA422P9BE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition: pixfmt.h:177
ff_fmt_from_pixfmt
void ff_fmt_from_pixfmt(enum AVPixelFormat pixfmt, SwsFormat *fmt)
Subset of ff_fmt_from_frame() that sets default metadata for the format.
Definition: format.c:482
unpack
static int unpack(const uint8_t *src, const uint8_t *src_end, uint8_t *dst, int width, int height)
Unpack buffer.
Definition: eatgv.c:73
AV_PIX_FMT_RGB555LE
@ AV_PIX_FMT_RGB555LE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:115
sws_isSupportedEndiannessConversion
int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
Definition: format.c:302
SwsFormat::format
enum AVPixelFormat format
Definition: format.h:80
AV_PIX_FMT_RGB48BE
@ AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:109
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:711
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:700
SwsPackOp
Definition: ops.h:133
AV_PIX_FMT_GRAY9BE
@ AV_PIX_FMT_GRAY9BE
Y , 9bpp, big-endian.
Definition: pixfmt.h:338
AV_PIX_FMT_NV24
@ AV_PIX_FMT_NV24
planar YUV 4:4:4, 24bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:371
SwsFormat::desc
const AVPixFmtDescriptor * desc
Definition: format.h:85
av_assert1
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:58
AV_PIX_FMT_YAF16LE
@ AV_PIX_FMT_YAF16LE
IEEE-754 half precision packed YA, 16 bits gray, 16 bits alpha, 32bpp, little-endian.
Definition: pixfmt.h:486
AV_PIX_FMT_BAYER_GBRG8
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:287
sws_isSupportedOutput
int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
Return a positive value if pix_fmt is a supported output format, 0 otherwise.
Definition: format.c:296
AV_PIX_FMT_NV20LE
@ AV_PIX_FMT_NV20LE
interleaved chroma YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:199
ff_sws_encode_colors
int ff_sws_encode_colors(SwsContext *ctx, SwsPixelType type, SwsOpList *ops, const SwsFormat *src, const SwsFormat *dst, bool *incomplete)
ops_internal.h
AV_PIX_FMT_FLAG_BE
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
Definition: pixdesc.h:116
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:107
AV_PIX_FMT_XYZ12BE
@ AV_PIX_FMT_XYZ12BE
packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as big...
Definition: pixfmt.h:197
AV_PIX_FMT_X2RGB10BE
@ AV_PIX_FMT_X2RGB10BE
packed RGB 10:10:10, 30bpp, (msb)2X 10R 10G 10B(lsb), big-endian, X=unused/undefined
Definition: pixfmt.h:385
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
SwsFormat::width
int width
Definition: format.h:78
sws_test_frame
int sws_test_frame(const AVFrame *frame, int output)
Helper function to run all sws_test_* against a frame, as well as testing the basic frame properties ...
Definition: format.c:625
AV_PIX_FMT_NV21
@ AV_PIX_FMT_NV21
as above, but U and V bytes are swapped
Definition: pixfmt.h:97
AVMasteringDisplayMetadata
Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
SwsOp
Definition: ops.h:212
AV_PIX_FMT_RGB4_BYTE
@ AV_PIX_FMT_RGB4_BYTE
packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
Definition: pixfmt.h:95
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:703
AV_PIX_FMT_YUV444P16BE
@ AV_PIX_FMT_YUV444P16BE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:133
ff_sws_decode_pixfmt
int ff_sws_decode_pixfmt(SwsOpList *ops, enum AVPixelFormat fmt)
Append a set of operations for decoding/encoding raw pixels.
AV_PIX_FMT_GBRPF32LE
@ AV_PIX_FMT_GBRPF32LE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, little-endian.
Definition: pixfmt.h:342
AV_FRAME_FLAG_INTERLACED
#define AV_FRAME_FLAG_INTERLACED
A flag to mark frames whose content is interlaced.
Definition: frame.h:650
AV_PIX_FMT_NV42
@ AV_PIX_FMT_NV42
as above, but U and V bytes are swapped
Definition: pixfmt.h:372
av_csp_eotf_function
void(* av_csp_eotf_function)(double Lw, double Lb, double c[3])
Function pointer representing an ITU EOTF transfer for a given reference display configuration.
Definition: csp.h:178
AVDynamicHDRPlus
This struct represents dynamic metadata for color volume transform - application 4 of SMPTE 2094-40:2...
Definition: hdr_dynamic_metadata.h:243
av_cmp_q
static int av_cmp_q(AVRational a, AVRational b)
Compare two rationals.
Definition: rational.h:89
AVHWFramesContext
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:118
AV_PIX_FMT_GBRAP16LE
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:214
SWS_DITHER_ED
@ SWS_DITHER_ED
Definition: swscale.h:83
AV_PIX_FMT_PAL8
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:84
AV_PIX_FMT_GRAY12BE
@ AV_PIX_FMT_GRAY12BE
Y , 12bpp, big-endian.
Definition: pixfmt.h:318
AV_PIX_FMT_YVYU422
@ AV_PIX_FMT_YVYU422
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:207
AVCOL_PRI_BT470M
@ AVCOL_PRI_BT470M
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:641
SwsComps::flags
SwsCompFlags flags[4]
Definition: ops.h:101
pixfmt
enum AVPixelFormat pixfmt
Definition: kmsgrab.c:367
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:264
AV_PIX_FMT_NV12
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:96
AV_PIX_FMT_Y212LE
@ AV_PIX_FMT_Y212LE
packed YUV 4:2:2 like YUYV422, 24bpp, data in the high bits, zeros in the low bits,...
Definition: pixfmt.h:412
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:265
AV_PIX_FMT_BAYER_BGGR16BE
@ AV_PIX_FMT_BAYER_BGGR16BE
bayer, BGBG..(odd line), GRGR..(even line), 16-bit samples, big-endian
Definition: pixfmt.h:290
AV_PIX_FMT_P410BE
@ AV_PIX_FMT_P410BE
interleaved chroma YUV 4:4:4, 30bpp, data in the high bits, big-endian
Definition: pixfmt.h:392
SWS_OP_MAX
@ SWS_OP_MAX
Definition: ops.h:65
AV_PIX_FMT_P016LE
@ AV_PIX_FMT_P016LE
like NV12, with 16bpp per component, little-endian
Definition: pixfmt.h:323
ff_fmt_equal
static int ff_fmt_equal(const SwsFormat *fmt1, const SwsFormat *fmt2)
Definition: format.h:135
AVCIExy::y
AVRational y
Definition: csp.h:57
AV_PIX_FMT_GRAYF32BE
@ AV_PIX_FMT_GRAYF32BE
IEEE-754 single precision Y, 32bpp, big-endian.
Definition: pixfmt.h:363
AV_PIX_FMT_GRAYF16BE
@ AV_PIX_FMT_GRAYF16BE
IEEE-754 half precision Y, 16bpp, big-endian.
Definition: pixfmt.h:471
AV_PIX_FMT_RGBF16BE
@ AV_PIX_FMT_RGBF16BE
IEEE-754 half precision packed RGB 16:16:16, 48bpp, RGBRGB..., big-endian.
Definition: pixfmt.h:451
AV_PIX_FMT_GBRP12BE
@ AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:279
AV_PIX_FMT_UYVY422
@ AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:88
AV_PIX_FMT_YUV444P12BE
@ AV_PIX_FMT_YUV444P12BE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:275
AV_FRAME_DATA_DYNAMIC_HDR_PLUS
@ AV_FRAME_DATA_DYNAMIC_HDR_PLUS
HDR dynamic metadata associated with a video frame.
Definition: frame.h:159
SWS_DITHER_A_DITHER
@ SWS_DITHER_A_DITHER
Definition: swscale.h:84
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:687
SwsComps
Definition: ops.h:100
AVCOL_PRI_EXT_NB
@ AVCOL_PRI_EXT_NB
Not part of ABI.
Definition: pixfmt.h:659
AV_PIX_FMT_FLAG_XYZ
#define AV_PIX_FMT_FLAG_XYZ
The pixel format contains XYZ-like data (as opposed to YUV/RGB/grayscale).
Definition: pixdesc.h:163
AVRational::den
int den
Denominator.
Definition: rational.h:60
SWS_COMP_SWAPPED
@ SWS_COMP_SWAPPED
Definition: ops.h:85
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AVCOL_SPC_FCC
@ AVCOL_SPC_FCC
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:705
AV_PIX_FMT_XV48LE
@ AV_PIX_FMT_XV48LE
packed XVYU 4:4:4, 64bpp, little-endian, variant of Y416 where alpha channel is left undefined
Definition: pixfmt.h:464
SwsSwizzleOp::y
uint8_t y
Definition: ops.h:149
AV_PIX_FMT_YUV444P9LE
@ AV_PIX_FMT_YUV444P9LE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:160
SWS_OP_SWAP_BYTES
@ SWS_OP_SWAP_BYTES
Definition: ops.h:52
SwsFormat::hw_format
enum AVPixelFormat hw_format
Definition: format.h:81
SwsFormat::color
SwsColor color
Definition: format.h:86
hdr_dynamic_metadata.h
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:117
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:132
AV_PIX_FMT_P216LE
@ AV_PIX_FMT_P216LE
interleaved chroma YUV 4:2:2, 32bpp, little-endian
Definition: pixfmt.h:396
AV_PIX_FMT_RGBF32LE
@ AV_PIX_FMT_RGBF32LE
IEEE-754 single precision packed RGB 32:32:32, 96bpp, RGBRGB..., little-endian.
Definition: pixfmt.h:421
AV_PIX_FMT_V30XBE
@ AV_PIX_FMT_V30XBE
packed VYUX 4:4:4 like XV30, 32bpp, (msb)10V 10Y 10U 2X(lsb), big-endian
Definition: pixfmt.h:448
AVMasteringDisplayMetadata::min_luminance
AVRational min_luminance
Min luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:52
av_mul_q
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
SwsSwizzleOp::x
uint8_t x
Definition: ops.h:149
AV_PIX_FMT_YUVA420P10BE
@ AV_PIX_FMT_YUVA420P10BE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition: pixfmt.h:181
SwsFormat::csp
enum AVColorSpace csp
Definition: format.h:83
SwsColor::min_luma
AVRational min_luma
Definition: format.h:64
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
SWS_COMP_EXACT
@ SWS_COMP_EXACT
Definition: ops.h:83
AV_PIX_FMT_RGB565BE
@ AV_PIX_FMT_RGB565BE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
Definition: pixfmt.h:112
AV_PIX_FMT_YUV420P16BE
@ AV_PIX_FMT_YUV420P16BE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:129
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
AV_PIX_FMT_YUV422P16BE
@ AV_PIX_FMT_YUV422P16BE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:131
AV_PIX_FMT_P212BE
@ AV_PIX_FMT_P212BE
interleaved chroma YUV 4:2:2, 24bpp, data in the high bits, big-endian
Definition: pixfmt.h:426
desc
const char * desc
Definition: libsvtav1.c:82
SwsReadWriteOp::elems
uint8_t elems
Examples: rgba = 4x u8 packed yuv444p = 3x u8 rgb565 = 1x u16 <- use SWS_OP_UNPACK to unpack monow = ...
Definition: ops.h:118
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:105
AV_PIX_FMT_X2BGR10LE
@ AV_PIX_FMT_X2BGR10LE
packed BGR 10:10:10, 30bpp, (msb)2X 10B 10G 10R(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:386
AV_PIX_FMT_V30XLE
@ AV_PIX_FMT_V30XLE
packed VYUX 4:4:4 like XV30, 32bpp, (msb)10V 10Y 10U 2X(lsb), little-endian
Definition: pixfmt.h:449
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
AV_PIX_FMT_P010LE
@ AV_PIX_FMT_P010LE
like NV12, with 10bpp per component, data in the high bits, zeros in the low bits,...
Definition: pixfmt.h:307
SwsColor::max_luma
AVRational max_luma
Definition: format.h:65
mastering_display_metadata.h
AV_PIX_FMT_XV48BE
@ AV_PIX_FMT_XV48BE
packed XVYU 4:4:4, 64bpp, big-endian, variant of Y416 where alpha channel is left undefined
Definition: pixfmt.h:463
AV_PIX_FMT_YUVA444P10LE
@ AV_PIX_FMT_YUVA444P10LE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:186
AVFrameSideData
Structure to hold side data for an AVFrame.
Definition: frame.h:282
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AV_PIX_FMT_BGR555LE
@ AV_PIX_FMT_BGR555LE
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:120
LegacyFormatEntry
Definition: format.c:46
AVCOL_TRC_V_LOG
@ AVCOL_TRC_V_LOG
Definition: pixfmt.h:692
AV_PIX_FMT_YAF32BE
@ AV_PIX_FMT_YAF32BE
IEEE-754 single precision packed YA, 32 bits gray, 32 bits alpha, 64bpp, big-endian.
Definition: pixfmt.h:482
AV_PIX_FMT_P216BE
@ AV_PIX_FMT_P216BE
interleaved chroma YUV 4:2:2, 32bpp, big-endian
Definition: pixfmt.h:395
av_add_q
AVRational av_add_q(AVRational b, AVRational c)
Add two rationals.
Definition: rational.c:93
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AV_PIX_FMT_P412LE
@ AV_PIX_FMT_P412LE
interleaved chroma YUV 4:4:4, 36bpp, data in the high bits, little-endian
Definition: pixfmt.h:430
AV_PIX_FMT_GRAY14LE
@ AV_PIX_FMT_GRAY14LE
Y , 14bpp, little-endian.
Definition: pixfmt.h:361
AV_PIX_FMT_GRAYF16LE
@ AV_PIX_FMT_GRAYF16LE
IEEE-754 half precision Y, 16bpp, little-endian.
Definition: pixfmt.h:472
AVColorPrimariesDesc::prim
AVPrimaryCoefficients prim
Definition: csp.h:80
AVCOL_SPC_SMPTE2085
@ AVCOL_SPC_SMPTE2085
SMPTE 2085, Y'D'zD'x.
Definition: pixfmt.h:713
AV_PIX_FMT_XV36LE
@ AV_PIX_FMT_XV36LE
packed XVYU 4:4:4, 48bpp, data in the high bits, zeros in the low bits, little-endian,...
Definition: pixfmt.h:418
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
AV_PIX_FMT_GRAY14BE
@ AV_PIX_FMT_GRAY14BE
Y , 14bpp, big-endian.
Definition: pixfmt.h:360
SwsSwizzleOp::in
uint8_t in[4]
Definition: ops.h:148
SWS_OP_CONVERT
@ SWS_OP_CONVERT
Definition: ops.h:63
AV_PIX_FMT_YUVA422P16BE
@ AV_PIX_FMT_YUVA422P16BE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition: pixfmt.h:189
AV_PIX_FMT_YUV440P10BE
@ AV_PIX_FMT_YUV440P10BE
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian
Definition: pixfmt.h:299
AV_PIX_FMT_YUV422P9LE
@ AV_PIX_FMT_YUV422P9LE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:164
AV_PIX_FMT_YUVA422P16LE
@ AV_PIX_FMT_YUVA422P16LE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition: pixfmt.h:190
AV_PIX_FMT_GBRP14LE
@ AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:282
av_csp_itu_eotf
av_csp_eotf_function av_csp_itu_eotf(enum AVColorTransferCharacteristic trc)
Returns the ITU EOTF corresponding to a given TRC.
Definition: csp.c:684
AV_PIX_FMT_YUV444P12MSBLE
@ AV_PIX_FMT_YUV444P12MSBLE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), lowest bits zero, little-endian
Definition: pixfmt.h:494
RGBA
#define RGBA(r, g, b, a)
Definition: dvbsubdec.c:42
hwcontext.h
AVCHROMA_LOC_NB
@ AVCHROMA_LOC_NB
Not part of ABI.
Definition: pixfmt.h:804
AV_PIX_FMT_0RGB
@ AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:262
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:79
AV_PIX_FMT_GBRAP10BE
@ AV_PIX_FMT_GBRAP10BE
planar GBR 4:4:4:4 40bpp, big-endian
Definition: pixfmt.h:313
AVCOL_TRC_SMPTE428
@ AVCOL_TRC_SMPTE428
SMPTE ST 428-1.
Definition: pixfmt.h:685
SWS_ACCURATE_RND
@ SWS_ACCURATE_RND
Force bit-exact output.
Definition: swscale.h:156
AVLumaCoefficients::cb
AVRational cb
Definition: csp.h:49
AV_PIX_FMT_YUVA444P16LE
@ AV_PIX_FMT_YUVA444P16LE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition: pixfmt.h:192
AV_PIX_FMT_GBRPF16BE
@ AV_PIX_FMT_GBRPF16BE
IEEE-754 half precision planer GBR 4:4:4, 48bpp, big-endian.
Definition: pixfmt.h:466
SwsOpList
Helper struct for representing a list of operations.
Definition: ops.h:254
AV_PIX_FMT_VUYX
@ AV_PIX_FMT_VUYX
packed VUYX 4:4:4:4, 32bpp, Variant of VUYA where alpha channel is left undefined
Definition: pixfmt.h:406
AV_PIX_FMT_VYU444
@ AV_PIX_FMT_VYU444
packed VYU 4:4:4, 24bpp (1 Cr & Cb sample per 1x1 Y), VYUVYU...
Definition: pixfmt.h:446
AV_PIX_FMT_YUVA422P12BE
@ AV_PIX_FMT_YUVA422P12BE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), 12b alpha, big-endian
Definition: pixfmt.h:366
AVCOL_SPC_BT709
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B
Definition: pixfmt.h:702
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:742
SwsContext
Main external API structure.
Definition: swscale.h:206
AV_PIX_FMT_FLAG_PAL
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
Definition: pixdesc.h:120
AV_PIX_FMT_BGR444LE
@ AV_PIX_FMT_BGR444LE
packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:138
AVCOL_SPC_ICTCP
@ AVCOL_SPC_ICTCP
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:716
AV_PIX_FMT_YUV422P12LE
@ AV_PIX_FMT_YUV422P12LE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:272
AV_PIX_FMT_YUVA420P9BE
@ AV_PIX_FMT_YUVA420P9BE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition: pixfmt.h:175
AV_PIX_FMT_BAYER_GRBG8
@ AV_PIX_FMT_BAYER_GRBG8
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:288
csputils.h
src
#define src
Definition: vp8dsp.c:248
AVCOL_PRI_EXT_BASE
@ AVCOL_PRI_EXT_BASE
Definition: pixfmt.h:657
AV_PIX_FMT_GBRAP14LE
@ AV_PIX_FMT_GBRAP14LE
planar GBR 4:4:4:4 56bpp, little-endian
Definition: pixfmt.h:433
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:173
AV_PIX_FMT_GBRPF16LE
@ AV_PIX_FMT_GBRPF16LE
IEEE-754 half precision planer GBR 4:4:4, 48bpp, little-endian.
Definition: pixfmt.h:467
ff_sws_encode_pixfmt
int ff_sws_encode_pixfmt(SwsOpList *ops, enum AVPixelFormat fmt)
infer_trc_ref
static int infer_trc_ref(SwsColor *csp, const SwsColor *ref)
Definition: format.c:514
SwsColor::prim
enum AVColorPrimaries prim
Definition: format.h:61
av_csp_itu_eotf_inv
av_csp_eotf_function av_csp_itu_eotf_inv(enum AVColorTransferCharacteristic trc)
Returns the mathematical inverse of the corresponding EOTF.
Definition: csp.c:710
AV_PIX_FMT_UYYVYY411
@ AV_PIX_FMT_UYYVYY411
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:89
AV_PIX_FMT_BGR48BE
@ AV_PIX_FMT_BGR48BE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:145
ff_fmt_clear
static void ff_fmt_clear(SwsFormat *fmt)
Definition: format.h:89
AV_PIX_FMT_YUVA422P9LE
@ AV_PIX_FMT_YUVA422P9LE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition: pixfmt.h:178
ff_sws_frame_from_avframe
void ff_sws_frame_from_avframe(SwsFrame *dst, const AVFrame *src)
Initialize a SwsFrame from an AVFrame.
Definition: format.c:652
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