FFmpeg: libswscale/format.c Source File

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 
30  #define Q(N) ((AVRational) { N, 1 })
31  #define Q0 Q(0)
32  #define Q1 Q(1)
33 
34  #define RET(x) \
35  do { \
36  int _ret = (x); \
37  if (_ret < 0) \
38  return _ret; \
39  } while (0)
40 
41  typedef struct LegacyFormatEntry {
42   uint8_t is_supported_in :1;
43   uint8_t is_supported_out :1;
44   uint8_t is_supported_endianness :1;
45 } LegacyFormatEntry;
46 
47 /* Format support table for legacy swscale */
48  static const LegacyFormatEntry legacy_format_entries[] = {
49  [AV_PIX_FMT_YUV420P] = { 1, 1 },
50  [AV_PIX_FMT_YUYV422] = { 1, 1 },
51  [AV_PIX_FMT_RGB24] = { 1, 1 },
52  [AV_PIX_FMT_BGR24] = { 1, 1 },
53  [AV_PIX_FMT_YUV422P] = { 1, 1 },
54  [AV_PIX_FMT_YUV444P] = { 1, 1 },
55  [AV_PIX_FMT_YUV410P] = { 1, 1 },
56  [AV_PIX_FMT_YUV411P] = { 1, 1 },
57  [AV_PIX_FMT_GRAY8] = { 1, 1 },
58  [AV_PIX_FMT_MONOWHITE] = { 1, 1 },
59  [AV_PIX_FMT_MONOBLACK] = { 1, 1 },
60  [AV_PIX_FMT_PAL8] = { 1, 0 },
61  [AV_PIX_FMT_YUVJ420P] = { 1, 1 },
62  [AV_PIX_FMT_YUVJ411P] = { 1, 1 },
63  [AV_PIX_FMT_YUVJ422P] = { 1, 1 },
64  [AV_PIX_FMT_YUVJ444P] = { 1, 1 },
65  [AV_PIX_FMT_YVYU422] = { 1, 1 },
66  [AV_PIX_FMT_UYVY422] = { 1, 1 },
67  [AV_PIX_FMT_UYYVYY411] = { 1, 0 },
68  [AV_PIX_FMT_BGR8] = { 1, 1 },
69  [AV_PIX_FMT_BGR4] = { 0, 1 },
70  [AV_PIX_FMT_BGR4_BYTE] = { 1, 1 },
71  [AV_PIX_FMT_RGB8] = { 1, 1 },
72  [AV_PIX_FMT_RGB4] = { 0, 1 },
73  [AV_PIX_FMT_RGB4_BYTE] = { 1, 1 },
74  [AV_PIX_FMT_NV12] = { 1, 1 },
75  [AV_PIX_FMT_NV21] = { 1, 1 },
76  [AV_PIX_FMT_ARGB] = { 1, 1 },
77  [AV_PIX_FMT_RGBA] = { 1, 1 },
78  [AV_PIX_FMT_ABGR] = { 1, 1 },
79  [AV_PIX_FMT_BGRA] = { 1, 1 },
80  [AV_PIX_FMT_0RGB] = { 1, 1 },
81  [AV_PIX_FMT_RGB0] = { 1, 1 },
82  [AV_PIX_FMT_0BGR] = { 1, 1 },
83  [AV_PIX_FMT_BGR0] = { 1, 1 },
84  [AV_PIX_FMT_GRAY9BE] = { 1, 1 },
85  [AV_PIX_FMT_GRAY9LE] = { 1, 1 },
86  [AV_PIX_FMT_GRAY10BE] = { 1, 1 },
87  [AV_PIX_FMT_GRAY10LE] = { 1, 1 },
88  [AV_PIX_FMT_GRAY12BE] = { 1, 1 },
89  [AV_PIX_FMT_GRAY12LE] = { 1, 1 },
90  [AV_PIX_FMT_GRAY14BE] = { 1, 1 },
91  [AV_PIX_FMT_GRAY14LE] = { 1, 1 },
92  [AV_PIX_FMT_GRAY16BE] = { 1, 1 },
93  [AV_PIX_FMT_GRAY16LE] = { 1, 1 },
94  [AV_PIX_FMT_YUV440P] = { 1, 1 },
95  [AV_PIX_FMT_YUVJ440P] = { 1, 1 },
96  [AV_PIX_FMT_YUV440P10LE] = { 1, 1 },
97  [AV_PIX_FMT_YUV440P10BE] = { 1, 1 },
98  [AV_PIX_FMT_YUV440P12LE] = { 1, 1 },
99  [AV_PIX_FMT_YUV440P12BE] = { 1, 1 },
100  [AV_PIX_FMT_YUVA420P] = { 1, 1 },
101  [AV_PIX_FMT_YUVA422P] = { 1, 1 },
102  [AV_PIX_FMT_YUVA444P] = { 1, 1 },
103  [AV_PIX_FMT_YUVA420P9BE] = { 1, 1 },
104  [AV_PIX_FMT_YUVA420P9LE] = { 1, 1 },
105  [AV_PIX_FMT_YUVA422P9BE] = { 1, 1 },
106  [AV_PIX_FMT_YUVA422P9LE] = { 1, 1 },
107  [AV_PIX_FMT_YUVA444P9BE] = { 1, 1 },
108  [AV_PIX_FMT_YUVA444P9LE] = { 1, 1 },
109  [AV_PIX_FMT_YUVA420P10BE] = { 1, 1 },
110  [AV_PIX_FMT_YUVA420P10LE] = { 1, 1 },
111  [AV_PIX_FMT_YUVA422P10BE] = { 1, 1 },
112  [AV_PIX_FMT_YUVA422P10LE] = { 1, 1 },
113  [AV_PIX_FMT_YUVA444P10BE] = { 1, 1 },
114  [AV_PIX_FMT_YUVA444P10LE] = { 1, 1 },
115  [AV_PIX_FMT_YUVA420P16BE] = { 1, 1 },
116  [AV_PIX_FMT_YUVA420P16LE] = { 1, 1 },
117  [AV_PIX_FMT_YUVA422P16BE] = { 1, 1 },
118  [AV_PIX_FMT_YUVA422P16LE] = { 1, 1 },
119  [AV_PIX_FMT_YUVA444P16BE] = { 1, 1 },
120  [AV_PIX_FMT_YUVA444P16LE] = { 1, 1 },
121  [AV_PIX_FMT_RGB48BE] = { 1, 1 },
122  [AV_PIX_FMT_RGB48LE] = { 1, 1 },
123  [AV_PIX_FMT_RGBA64BE] = { 1, 1, 1 },
124  [AV_PIX_FMT_RGBA64LE] = { 1, 1, 1 },
125  [AV_PIX_FMT_RGB565BE] = { 1, 1 },
126  [AV_PIX_FMT_RGB565LE] = { 1, 1 },
127  [AV_PIX_FMT_RGB555BE] = { 1, 1 },
128  [AV_PIX_FMT_RGB555LE] = { 1, 1 },
129  [AV_PIX_FMT_BGR565BE] = { 1, 1 },
130  [AV_PIX_FMT_BGR565LE] = { 1, 1 },
131  [AV_PIX_FMT_BGR555BE] = { 1, 1 },
132  [AV_PIX_FMT_BGR555LE] = { 1, 1 },
133  [AV_PIX_FMT_YUV420P16LE] = { 1, 1 },
134  [AV_PIX_FMT_YUV420P16BE] = { 1, 1 },
135  [AV_PIX_FMT_YUV422P16LE] = { 1, 1 },
136  [AV_PIX_FMT_YUV422P16BE] = { 1, 1 },
137  [AV_PIX_FMT_YUV444P16LE] = { 1, 1 },
138  [AV_PIX_FMT_YUV444P16BE] = { 1, 1 },
139  [AV_PIX_FMT_RGB444LE] = { 1, 1 },
140  [AV_PIX_FMT_RGB444BE] = { 1, 1 },
141  [AV_PIX_FMT_BGR444LE] = { 1, 1 },
142  [AV_PIX_FMT_BGR444BE] = { 1, 1 },
143  [AV_PIX_FMT_YA8] = { 1, 1 },
144  [AV_PIX_FMT_YA16BE] = { 1, 1 },
145  [AV_PIX_FMT_YA16LE] = { 1, 1 },
146  [AV_PIX_FMT_BGR48BE] = { 1, 1 },
147  [AV_PIX_FMT_BGR48LE] = { 1, 1 },
148  [AV_PIX_FMT_BGRA64BE] = { 1, 1, 1 },
149  [AV_PIX_FMT_BGRA64LE] = { 1, 1, 1 },
150  [AV_PIX_FMT_YUV420P9BE] = { 1, 1 },
151  [AV_PIX_FMT_YUV420P9LE] = { 1, 1 },
152  [AV_PIX_FMT_YUV420P10BE] = { 1, 1 },
153  [AV_PIX_FMT_YUV420P10LE] = { 1, 1 },
154  [AV_PIX_FMT_YUV420P12BE] = { 1, 1 },
155  [AV_PIX_FMT_YUV420P12LE] = { 1, 1 },
156  [AV_PIX_FMT_YUV420P14BE] = { 1, 1 },
157  [AV_PIX_FMT_YUV420P14LE] = { 1, 1 },
158  [AV_PIX_FMT_YUV422P9BE] = { 1, 1 },
159  [AV_PIX_FMT_YUV422P9LE] = { 1, 1 },
160  [AV_PIX_FMT_YUV422P10BE] = { 1, 1 },
161  [AV_PIX_FMT_YUV422P10LE] = { 1, 1 },
162  [AV_PIX_FMT_YUV422P12BE] = { 1, 1 },
163  [AV_PIX_FMT_YUV422P12LE] = { 1, 1 },
164  [AV_PIX_FMT_YUV422P14BE] = { 1, 1 },
165  [AV_PIX_FMT_YUV422P14LE] = { 1, 1 },
166  [AV_PIX_FMT_YUV444P9BE] = { 1, 1 },
167  [AV_PIX_FMT_YUV444P9LE] = { 1, 1 },
168  [AV_PIX_FMT_YUV444P10BE] = { 1, 1 },
169  [AV_PIX_FMT_YUV444P10LE] = { 1, 1 },
170  [AV_PIX_FMT_YUV444P12BE] = { 1, 1 },
171  [AV_PIX_FMT_YUV444P12LE] = { 1, 1 },
172  [AV_PIX_FMT_YUV444P14BE] = { 1, 1 },
173  [AV_PIX_FMT_YUV444P14LE] = { 1, 1 },
174  [AV_PIX_FMT_YUV444P10MSBBE] = { 1, 1 },
175  [AV_PIX_FMT_YUV444P10MSBLE] = { 1, 1 },
176  [AV_PIX_FMT_YUV444P12MSBBE] = { 1, 1 },
177  [AV_PIX_FMT_YUV444P12MSBLE] = { 1, 1 },
178  [AV_PIX_FMT_GBRP] = { 1, 1 },
179  [AV_PIX_FMT_GBRP9LE] = { 1, 1 },
180  [AV_PIX_FMT_GBRP9BE] = { 1, 1 },
181  [AV_PIX_FMT_GBRP10LE] = { 1, 1 },
182  [AV_PIX_FMT_GBRP10BE] = { 1, 1 },
183  [AV_PIX_FMT_GBRAP10LE] = { 1, 1 },
184  [AV_PIX_FMT_GBRAP10BE] = { 1, 1 },
185  [AV_PIX_FMT_GBRP10MSBLE] = { 1, 1 },
186  [AV_PIX_FMT_GBRP10MSBBE] = { 1, 1 },
187  [AV_PIX_FMT_GBRP12LE] = { 1, 1 },
188  [AV_PIX_FMT_GBRP12BE] = { 1, 1 },
189  [AV_PIX_FMT_GBRP12MSBLE] = { 1, 1 },
190  [AV_PIX_FMT_GBRP12MSBBE] = { 1, 1 },
191  [AV_PIX_FMT_GBRAP12LE] = { 1, 1 },
192  [AV_PIX_FMT_GBRAP12BE] = { 1, 1 },
193  [AV_PIX_FMT_GBRP14LE] = { 1, 1 },
194  [AV_PIX_FMT_GBRP14BE] = { 1, 1 },
195  [AV_PIX_FMT_GBRAP14LE] = { 1, 1 },
196  [AV_PIX_FMT_GBRAP14BE] = { 1, 1 },
197  [AV_PIX_FMT_GBRP16LE] = { 1, 1 },
198  [AV_PIX_FMT_GBRP16BE] = { 1, 1 },
199  [AV_PIX_FMT_GBRPF32LE] = { 1, 1 },
200  [AV_PIX_FMT_GBRPF32BE] = { 1, 1 },
201  [AV_PIX_FMT_GBRAPF32LE] = { 1, 1 },
202  [AV_PIX_FMT_GBRAPF32BE] = { 1, 1 },
203  [AV_PIX_FMT_GBRPF16LE] = { 1, 0 },
204  [AV_PIX_FMT_GBRPF16BE] = { 1, 0 },
205  [AV_PIX_FMT_GBRAPF16LE] = { 1, 0 },
206  [AV_PIX_FMT_GBRAPF16BE] = { 1, 0 },
207  [AV_PIX_FMT_GBRAP] = { 1, 1 },
208  [AV_PIX_FMT_GBRAP16LE] = { 1, 1 },
209  [AV_PIX_FMT_GBRAP16BE] = { 1, 1 },
210  [AV_PIX_FMT_BAYER_BGGR8] = { 1, 0 },
211  [AV_PIX_FMT_BAYER_RGGB8] = { 1, 0 },
212  [AV_PIX_FMT_BAYER_GBRG8] = { 1, 0 },
213  [AV_PIX_FMT_BAYER_GRBG8] = { 1, 0 },
214  [AV_PIX_FMT_BAYER_BGGR16LE] = { 1, 0 },
215  [AV_PIX_FMT_BAYER_BGGR16BE] = { 1, 0 },
216  [AV_PIX_FMT_BAYER_RGGB16LE] = { 1, 0 },
217  [AV_PIX_FMT_BAYER_RGGB16BE] = { 1, 0 },
218  [AV_PIX_FMT_BAYER_GBRG16LE] = { 1, 0 },
219  [AV_PIX_FMT_BAYER_GBRG16BE] = { 1, 0 },
220  [AV_PIX_FMT_BAYER_GRBG16LE] = { 1, 0 },
221  [AV_PIX_FMT_BAYER_GRBG16BE] = { 1, 0 },
222  [AV_PIX_FMT_XYZ12BE] = { 1, 1, 1 },
223  [AV_PIX_FMT_XYZ12LE] = { 1, 1, 1 },
224  [AV_PIX_FMT_AYUV64LE] = { 1, 1},
225  [AV_PIX_FMT_AYUV64BE] = { 1, 1 },
226  [AV_PIX_FMT_P010LE] = { 1, 1 },
227  [AV_PIX_FMT_P010BE] = { 1, 1 },
228  [AV_PIX_FMT_P012LE] = { 1, 1 },
229  [AV_PIX_FMT_P012BE] = { 1, 1 },
230  [AV_PIX_FMT_P016LE] = { 1, 1 },
231  [AV_PIX_FMT_P016BE] = { 1, 1 },
232  [AV_PIX_FMT_GRAYF32LE] = { 1, 1 },
233  [AV_PIX_FMT_GRAYF32BE] = { 1, 1 },
234  [AV_PIX_FMT_GRAYF16LE] = { 1, 0 },
235  [AV_PIX_FMT_GRAYF16BE] = { 1, 0 },
236  [AV_PIX_FMT_YAF32LE] = { 1, 0 },
237  [AV_PIX_FMT_YAF32BE] = { 1, 0 },
238  [AV_PIX_FMT_YAF16LE] = { 1, 0 },
239  [AV_PIX_FMT_YAF16BE] = { 1, 0 },
240  [AV_PIX_FMT_YUVA422P12BE] = { 1, 1 },
241  [AV_PIX_FMT_YUVA422P12LE] = { 1, 1 },
242  [AV_PIX_FMT_YUVA444P12BE] = { 1, 1 },
243  [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
244  [AV_PIX_FMT_NV24] = { 1, 1 },
245  [AV_PIX_FMT_NV42] = { 1, 1 },
246  [AV_PIX_FMT_Y210LE] = { 1, 1 },
247  [AV_PIX_FMT_Y212LE] = { 1, 1 },
248  [AV_PIX_FMT_Y216LE] = { 1, 1 },
249  [AV_PIX_FMT_X2RGB10LE] = { 1, 1 },
250  [AV_PIX_FMT_X2BGR10LE] = { 1, 1 },
251  [AV_PIX_FMT_NV20BE] = { 1, 1 },
252  [AV_PIX_FMT_NV20LE] = { 1, 1 },
253  [AV_PIX_FMT_P210BE] = { 1, 1 },
254  [AV_PIX_FMT_P210LE] = { 1, 1 },
255  [AV_PIX_FMT_P212BE] = { 1, 1 },
256  [AV_PIX_FMT_P212LE] = { 1, 1 },
257  [AV_PIX_FMT_P410BE] = { 1, 1 },
258  [AV_PIX_FMT_P410LE] = { 1, 1 },
259  [AV_PIX_FMT_P412BE] = { 1, 1 },
260  [AV_PIX_FMT_P412LE] = { 1, 1 },
261  [AV_PIX_FMT_P216BE] = { 1, 1 },
262  [AV_PIX_FMT_P216LE] = { 1, 1 },
263  [AV_PIX_FMT_P416BE] = { 1, 1 },
264  [AV_PIX_FMT_P416LE] = { 1, 1 },
265  [AV_PIX_FMT_NV16] = { 1, 1 },
266  [AV_PIX_FMT_VUYA] = { 1, 1 },
267  [AV_PIX_FMT_VUYX] = { 1, 1 },
268  [AV_PIX_FMT_RGBAF16BE] = { 1, 0 },
269  [AV_PIX_FMT_RGBAF16LE] = { 1, 0 },
270  [AV_PIX_FMT_RGBF16BE] = { 1, 0 },
271  [AV_PIX_FMT_RGBF16LE] = { 1, 0 },
272  [AV_PIX_FMT_RGBF32BE] = { 1, 0 },
273  [AV_PIX_FMT_RGBF32LE] = { 1, 0 },
274  [AV_PIX_FMT_XV30LE] = { 1, 1 },
275  [AV_PIX_FMT_XV36LE] = { 1, 1 },
276  [AV_PIX_FMT_XV36BE] = { 1, 1 },
277  [AV_PIX_FMT_XV48LE] = { 1, 1 },
278  [AV_PIX_FMT_XV48BE] = { 1, 1 },
279  [AV_PIX_FMT_AYUV] = { 1, 1 },
280  [AV_PIX_FMT_UYVA] = { 1, 1 },
281  [AV_PIX_FMT_VYU444] = { 1, 1 },
282  [AV_PIX_FMT_V30XLE] = { 1, 1 },
283 };
284 
285  int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
286 {
287  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(legacy_format_entries) ?
288  legacy_format_entries[pix_fmt].is_supported_in : 0;
289 }
290 
291  int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
292 {
293  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(legacy_format_entries) ?
294  legacy_format_entries[pix_fmt].is_supported_out : 0;
295 }
296 
297  int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
298 {
299  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(legacy_format_entries) ?
300  legacy_format_entries[pix_fmt].is_supported_endianness : 0;
301 }
302 
303 /**
304  * This function also sanitizes and strips the input data, removing irrelevant
305  * fields for certain formats.
306  */
307  SwsFormat ff_fmt_from_frame(const AVFrame *frame, int field)
308 {
309  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
310  const AVColorPrimariesDesc *primaries;
311  AVFrameSideData *sd;
312 
313  SwsFormat fmt = {
314  .width = frame->width,
315  .height = frame->height,
316  .format = frame->format,
317  .range = frame->color_range,
318  .csp = frame->colorspace,
319  .loc = frame->chroma_location,
320  .desc = desc,
321  .color = {
322  .prim = frame->color_primaries,
323  .trc = frame->color_trc,
324  },
325  };
326 
327  av_assert1(fmt.width > 0);
328  av_assert1(fmt.height > 0);
329  av_assert1(fmt.format != AV_PIX_FMT_NONE);
330  av_assert0(desc);
331  if (desc->flags & (AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_PAL | AV_PIX_FMT_FLAG_BAYER)) {
332  /* RGB-like family */
333  fmt.csp = AVCOL_SPC_RGB;
334  fmt.range = AVCOL_RANGE_JPEG;
335  } else if (desc->flags & AV_PIX_FMT_FLAG_XYZ) {
336  fmt.csp = AVCOL_SPC_UNSPECIFIED;
337  fmt.color = (SwsColor) {
338  .prim = AVCOL_PRI_BT709, /* swscale currently hard-codes this XYZ matrix */
339  .trc = AVCOL_TRC_SMPTE428,
340  };
341  } else if (desc->nb_components < 3) {
342  /* Grayscale formats */
343  fmt.color.prim = AVCOL_PRI_UNSPECIFIED;
344  fmt.csp = AVCOL_SPC_UNSPECIFIED;
345  if (desc->flags & AV_PIX_FMT_FLAG_FLOAT)
346  fmt.range = AVCOL_RANGE_UNSPECIFIED;
347  else
348  fmt.range = AVCOL_RANGE_JPEG; // FIXME: this restriction should be lifted
349  }
350 
351  switch (frame->format) {
352  case AV_PIX_FMT_YUVJ420P:
353  case AV_PIX_FMT_YUVJ411P:
354  case AV_PIX_FMT_YUVJ422P:
355  case AV_PIX_FMT_YUVJ444P:
356  case AV_PIX_FMT_YUVJ440P:
357  fmt.range = AVCOL_RANGE_JPEG;
358  break;
359  }
360 
361  if (!desc->log2_chroma_w && !desc->log2_chroma_h)
362  fmt.loc = AVCHROMA_LOC_UNSPECIFIED;
363 
364  if (frame->flags & AV_FRAME_FLAG_INTERLACED) {
365  fmt.height = (fmt.height + (field == FIELD_TOP)) >> 1;
366  fmt.interlaced = 1;
367  }
368 
369  /* Set luminance and gamut information */
370  fmt.color.min_luma = av_make_q(0, 1);
371  switch (fmt.color.trc) {
372  case AVCOL_TRC_SMPTE2084:
373  fmt.color.max_luma = av_make_q(10000, 1); break;
374  case AVCOL_TRC_ARIB_STD_B67:
375  fmt.color.max_luma = av_make_q( 1000, 1); break; /* HLG reference display */
376  default:
377  fmt.color.max_luma = av_make_q( 203, 1); break; /* SDR reference brightness */
378  }
379 
380  primaries = av_csp_primaries_desc_from_id(fmt.color.prim);
381  if (primaries)
382  fmt.color.gamut = primaries->prim;
383 
384  if ((sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA))) {
385  const AVMasteringDisplayMetadata *mdm = (const AVMasteringDisplayMetadata *) sd->data;
386  if (mdm->has_luminance) {
387  fmt.color.min_luma = mdm->min_luminance;
388  fmt.color.max_luma = mdm->max_luminance;
389  }
390 
391  if (mdm->has_primaries) {
392  /* Ignore mastering display white point as it has no bearance on
393  * the underlying content */
394  fmt.color.gamut.r.x = mdm->display_primaries[0][0];
395  fmt.color.gamut.r.y = mdm->display_primaries[0][1];
396  fmt.color.gamut.g.x = mdm->display_primaries[1][0];
397  fmt.color.gamut.g.y = mdm->display_primaries[1][1];
398  fmt.color.gamut.b.x = mdm->display_primaries[2][0];
399  fmt.color.gamut.b.y = mdm->display_primaries[2][1];
400  }
401  }
402 
403  if ((sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DYNAMIC_HDR_PLUS))) {
404  const AVDynamicHDRPlus *dhp = (const AVDynamicHDRPlus *) sd->data;
405  const AVHDRPlusColorTransformParams *pars = &dhp->params[0];
406  const AVRational nits = av_make_q(10000, 1);
407  AVRational maxrgb = pars->maxscl[0];
408 
409  if (!dhp->num_windows || dhp->application_version > 1)
410  goto skip_hdr10;
411 
412  /* Maximum of MaxSCL components */
413  if (av_cmp_q(pars->maxscl[1], maxrgb) > 0)
414  maxrgb = pars->maxscl[1];
415  if (av_cmp_q(pars->maxscl[2], maxrgb) > 0)
416  maxrgb = pars->maxscl[2];
417 
418  if (maxrgb.num > 0) {
419  /* Estimate true luminance from MaxSCL */
420  const AVLumaCoefficients *luma = av_csp_luma_coeffs_from_avcsp(fmt.csp);
421  if (!luma)
422  goto skip_hdr10;
423  fmt.color.frame_peak = av_add_q(av_mul_q(luma->cr, pars->maxscl[0]),
424  av_add_q(av_mul_q(luma->cg, pars->maxscl[1]),
425  av_mul_q(luma->cb, pars->maxscl[2])));
426  /* Scale the scene average brightness by the ratio between the
427  * maximum luminance and the MaxRGB values */
428  fmt.color.frame_avg = av_mul_q(pars->average_maxrgb,
429  av_div_q(fmt.color.frame_peak, maxrgb));
430  } else {
431  /**
432  * Calculate largest value from histogram to use as fallback for
433  * clips with missing MaxSCL information. Note that this may end
434  * up picking the "reserved" value at the 5% percentile, which in
435  * practice appears to track the brightest pixel in the scene.
436  */
437  for (int i = 0; i < pars->num_distribution_maxrgb_percentiles; i++) {
438  const AVRational pct = pars->distribution_maxrgb[i].percentile;
439  if (av_cmp_q(pct, maxrgb) > 0)
440  maxrgb = pct;
441  fmt.color.frame_peak = maxrgb;
442  fmt.color.frame_avg = pars->average_maxrgb;
443  }
444  }
445 
446  /* Rescale to nits */
447  fmt.color.frame_peak = av_mul_q(nits, fmt.color.frame_peak);
448  fmt.color.frame_avg = av_mul_q(nits, fmt.color.frame_avg);
449  }
450 skip_hdr10:
451 
452  /* PQ is always scaled down to absolute zero, so ignore mastering metadata */
453  if (fmt.color.trc == AVCOL_TRC_SMPTE2084)
454  fmt.color.min_luma = av_make_q(0, 1);
455 
456  return fmt;
457 }
458 
459  static int infer_prim_ref(SwsColor *csp, const SwsColor *ref)
460 {
461  if (csp->prim != AVCOL_PRI_UNSPECIFIED)
462  return 0;
463 
464  /* Reuse the reference gamut only for "safe", similar primaries */
465  switch (ref->prim) {
466  case AVCOL_PRI_BT709:
467  case AVCOL_PRI_BT470M:
468  case AVCOL_PRI_BT470BG:
469  case AVCOL_PRI_SMPTE170M:
470  case AVCOL_PRI_SMPTE240M:
471  csp->prim = ref->prim;
472  csp->gamut = ref->gamut;
473  break;
474  default:
475  csp->prim = AVCOL_PRI_BT709;
476  csp->gamut = av_csp_primaries_desc_from_id(csp->prim)->prim;
477  break;
478  }
479 
480  return 1;
481 }
482 
483  static int infer_trc_ref(SwsColor *csp, const SwsColor *ref)
484 {
485  if (csp->trc != AVCOL_TRC_UNSPECIFIED)
486  return 0;
487 
488  /* Pick a suitable SDR transfer function, to try and minimize conversions */
489  switch (ref->trc) {
490  case AVCOL_TRC_UNSPECIFIED:
491  /* HDR curves, never default to these */
492  case AVCOL_TRC_SMPTE2084:
493  case AVCOL_TRC_ARIB_STD_B67:
494  csp->trc = AVCOL_TRC_BT709;
495  csp->min_luma = av_make_q(0, 1);
496  csp->max_luma = av_make_q(203, 1);
497  break;
498  default:
499  csp->trc = ref->trc;
500  csp->min_luma = ref->min_luma;
501  csp->max_luma = ref->max_luma;
502  break;
503  }
504 
505  return 1;
506 }
507 
508  bool ff_infer_colors(SwsColor *src, SwsColor *dst)
509 {
510  int incomplete = 0;
511 
512  incomplete |= infer_prim_ref(dst, src);
513  incomplete |= infer_prim_ref(src, dst);
514  av_assert0(src->prim != AVCOL_PRI_UNSPECIFIED);
515  av_assert0(dst->prim != AVCOL_PRI_UNSPECIFIED);
516 
517  incomplete |= infer_trc_ref(dst, src);
518  incomplete |= infer_trc_ref(src, dst);
519  av_assert0(src->trc != AVCOL_TRC_UNSPECIFIED);
520  av_assert0(dst->trc != AVCOL_TRC_UNSPECIFIED);
521 
522  return incomplete;
523 }
524 
525  int sws_test_format(enum AVPixelFormat format, int output)
526 {
527  return output ? sws_isSupportedOutput(format) : sws_isSupportedInput(format);
528 }
529 
530  int sws_test_colorspace(enum AVColorSpace csp, int output)
531 {
532  switch (csp) {
533  case AVCOL_SPC_UNSPECIFIED:
534  case AVCOL_SPC_RGB:
535  case AVCOL_SPC_BT709:
536  case AVCOL_SPC_BT470BG:
537  case AVCOL_SPC_SMPTE170M:
538  case AVCOL_SPC_FCC:
539  case AVCOL_SPC_SMPTE240M:
540  case AVCOL_SPC_BT2020_NCL:
541  return 1;
542  default:
543  return 0;
544  }
545 }
546 
547  int sws_test_primaries(enum AVColorPrimaries prim, int output)
548 {
549  return prim > AVCOL_PRI_RESERVED0 && prim < AVCOL_PRI_NB &&
550  prim != AVCOL_PRI_RESERVED;
551 }
552 
553  int sws_test_transfer(enum AVColorTransferCharacteristic trc, int output)
554 {
555  av_csp_eotf_function eotf = output ? av_csp_itu_eotf_inv(trc)
556  : av_csp_itu_eotf(trc);
557  return trc == AVCOL_TRC_UNSPECIFIED || eotf != NULL;
558 }
559 
560  static int test_range(enum AVColorRange range)
561 {
562  return (unsigned)range < AVCOL_RANGE_NB;
563 }
564 
565  static int test_loc(enum AVChromaLocation loc)
566 {
567  return (unsigned)loc < AVCHROMA_LOC_NB;
568 }
569 
570  int ff_test_fmt(const SwsFormat *fmt, int output)
571 {
572  return fmt->width > 0 && fmt->height > 0 &&
573  sws_test_format (fmt->format, output) &&
574  sws_test_colorspace(fmt->csp, output) &&
575  sws_test_primaries (fmt->color.prim, output) &&
576  sws_test_transfer (fmt->color.trc, output) &&
577  test_range (fmt->range) &&
578  test_loc (fmt->loc);
579 }
580 
581  int sws_test_frame(const AVFrame *frame, int output)
582 {
583  for (int field = 0; field < 2; field++) {
584  const SwsFormat fmt = ff_fmt_from_frame(frame, field);
585  if (!ff_test_fmt(&fmt, output))
586  return 0;
587  if (!fmt.interlaced)
588  break;
589  }
590 
591  return 1;
592 }
593 
594  int sws_is_noop(const AVFrame *dst, const AVFrame *src)
595 {
596  for (int field = 0; field < 2; field++) {
597  SwsFormat dst_fmt = ff_fmt_from_frame(dst, field);
598  SwsFormat src_fmt = ff_fmt_from_frame(src, field);
599  if (!ff_fmt_equal(&dst_fmt, &src_fmt))
600  return 0;
601  if (!dst_fmt.interlaced)
602  break;
603  }
604 
605  return 1;
606 }
607 
608 #if CONFIG_UNSTABLE
609 
610 /* Returns the type suitable for a pixel after fully decoding/unpacking it */
611 static SwsPixelType fmt_pixel_type(enum AVPixelFormat fmt)
612 {
613  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
614  const int bits = FFALIGN(desc->comp[0].depth, 8);
615  if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) {
616  switch (bits) {
617  case 32: return SWS_PIXEL_F32;
618  }
619  } else {
620  switch (bits) {
621  case 8: return SWS_PIXEL_U8;
622  case 16: return SWS_PIXEL_U16;
623  case 32: return SWS_PIXEL_U32;
624  }
625  }
626 
627  return SWS_PIXEL_NONE;
628 }
629 
630 static SwsSwizzleOp fmt_swizzle(enum AVPixelFormat fmt)
631 {
632  switch (fmt) {
633  case AV_PIX_FMT_ARGB:
634  case AV_PIX_FMT_0RGB:
635  case AV_PIX_FMT_AYUV64LE:
636  case AV_PIX_FMT_AYUV64BE:
637  case AV_PIX_FMT_AYUV:
638  case AV_PIX_FMT_X2RGB10LE:
639  case AV_PIX_FMT_X2RGB10BE:
640  return (SwsSwizzleOp) {{ .x = 3, 0, 1, 2 }};
641  case AV_PIX_FMT_BGR24:
642  case AV_PIX_FMT_BGR8:
643  case AV_PIX_FMT_BGR4:
644  case AV_PIX_FMT_BGR4_BYTE:
645  case AV_PIX_FMT_BGRA:
646  case AV_PIX_FMT_BGR565BE:
647  case AV_PIX_FMT_BGR565LE:
648  case AV_PIX_FMT_BGR555BE:
649  case AV_PIX_FMT_BGR555LE:
650  case AV_PIX_FMT_BGR444BE:
651  case AV_PIX_FMT_BGR444LE:
652  case AV_PIX_FMT_BGR48BE:
653  case AV_PIX_FMT_BGR48LE:
654  case AV_PIX_FMT_BGRA64BE:
655  case AV_PIX_FMT_BGRA64LE:
656  case AV_PIX_FMT_BGR0:
657  case AV_PIX_FMT_VUYA:
658  case AV_PIX_FMT_VUYX:
659  return (SwsSwizzleOp) {{ .x = 2, 1, 0, 3 }};
660  case AV_PIX_FMT_ABGR:
661  case AV_PIX_FMT_0BGR:
662  case AV_PIX_FMT_X2BGR10LE:
663  case AV_PIX_FMT_X2BGR10BE:
664  return (SwsSwizzleOp) {{ .x = 3, 2, 1, 0 }};
665  case AV_PIX_FMT_YA8:
666  case AV_PIX_FMT_YA16BE:
667  case AV_PIX_FMT_YA16LE:
668  return (SwsSwizzleOp) {{ .x = 0, 3, 1, 2 }};
669  case AV_PIX_FMT_XV30BE:
670  case AV_PIX_FMT_XV30LE:
671  return (SwsSwizzleOp) {{ .x = 3, 2, 0, 1 }};
672  case AV_PIX_FMT_VYU444:
673  case AV_PIX_FMT_V30XBE:
674  case AV_PIX_FMT_V30XLE:
675  return (SwsSwizzleOp) {{ .x = 2, 0, 1, 3 }};
676  case AV_PIX_FMT_XV36BE:
677  case AV_PIX_FMT_XV36LE:
678  case AV_PIX_FMT_XV48BE:
679  case AV_PIX_FMT_XV48LE:
680  case AV_PIX_FMT_UYVA:
681  return (SwsSwizzleOp) {{ .x = 1, 0, 2, 3 }};
682  case AV_PIX_FMT_GBRP:
683  case AV_PIX_FMT_GBRP9BE:
684  case AV_PIX_FMT_GBRP9LE:
685  case AV_PIX_FMT_GBRP10BE:
686  case AV_PIX_FMT_GBRP10LE:
687  case AV_PIX_FMT_GBRP12BE:
688  case AV_PIX_FMT_GBRP12LE:
689  case AV_PIX_FMT_GBRP14BE:
690  case AV_PIX_FMT_GBRP14LE:
691  case AV_PIX_FMT_GBRP16BE:
692  case AV_PIX_FMT_GBRP16LE:
693  case AV_PIX_FMT_GBRPF16BE:
694  case AV_PIX_FMT_GBRPF16LE:
695  case AV_PIX_FMT_GBRAP:
696  case AV_PIX_FMT_GBRAP10LE:
697  case AV_PIX_FMT_GBRAP10BE:
698  case AV_PIX_FMT_GBRAP12LE:
699  case AV_PIX_FMT_GBRAP12BE:
700  case AV_PIX_FMT_GBRAP14LE:
701  case AV_PIX_FMT_GBRAP14BE:
702  case AV_PIX_FMT_GBRAP16LE:
703  case AV_PIX_FMT_GBRAP16BE:
704  case AV_PIX_FMT_GBRPF32BE:
705  case AV_PIX_FMT_GBRPF32LE:
706  case AV_PIX_FMT_GBRAPF16BE:
707  case AV_PIX_FMT_GBRAPF16LE:
708  case AV_PIX_FMT_GBRAPF32BE:
709  case AV_PIX_FMT_GBRAPF32LE:
710  case AV_PIX_FMT_GBRP10MSBBE:
711  case AV_PIX_FMT_GBRP10MSBLE:
712  case AV_PIX_FMT_GBRP12MSBBE:
713  case AV_PIX_FMT_GBRP12MSBLE:
714  return (SwsSwizzleOp) {{ .x = 1, 2, 0, 3 }};
715  default:
716  return (SwsSwizzleOp) {{ .x = 0, 1, 2, 3 }};
717  }
718 }
719 
720 static SwsSwizzleOp swizzle_inv(SwsSwizzleOp swiz) {
721  /* Input[x] =: Output[swizzle.x] */
722  unsigned out[4];
723  out[swiz.x] = 0;
724  out[swiz.y] = 1;
725  out[swiz.z] = 2;
726  out[swiz.w] = 3;
727  return (SwsSwizzleOp) {{ .x = out[0], out[1], out[2], out[3] }};
728 }
729 
730 /* Shift factor for MSB aligned formats */
731 static int fmt_shift(enum AVPixelFormat fmt)
732 {
733  switch (fmt) {
734  case AV_PIX_FMT_P010BE:
735  case AV_PIX_FMT_P010LE:
736  case AV_PIX_FMT_P210BE:
737  case AV_PIX_FMT_P210LE:
738  case AV_PIX_FMT_Y210BE:
739  case AV_PIX_FMT_Y210LE:
740  case AV_PIX_FMT_YUV444P10MSBBE:
741  case AV_PIX_FMT_YUV444P10MSBLE:
742  case AV_PIX_FMT_GBRP10MSBBE:
743  case AV_PIX_FMT_GBRP10MSBLE:
744  return 6;
745  case AV_PIX_FMT_P012BE:
746  case AV_PIX_FMT_P012LE:
747  case AV_PIX_FMT_P212BE:
748  case AV_PIX_FMT_P212LE:
749  case AV_PIX_FMT_P412BE:
750  case AV_PIX_FMT_P412LE:
751  case AV_PIX_FMT_XV36BE:
752  case AV_PIX_FMT_XV36LE:
753  case AV_PIX_FMT_XYZ12BE:
754  case AV_PIX_FMT_XYZ12LE:
755  case AV_PIX_FMT_YUV444P12MSBBE:
756  case AV_PIX_FMT_YUV444P12MSBLE:
757  case AV_PIX_FMT_GBRP12MSBBE:
758  case AV_PIX_FMT_GBRP12MSBLE:
759  return 4;
760  }
761 
762  return 0;
763 }
764 
765 /**
766  * This initializes all absent components explicitly to zero. There is no
767  * need to worry about the correct neutral value as fmt_decode() will
768  * implicitly ignore and overwrite absent components in any case. This function
769  * is just to ensure that we don't operate on undefined memory. In most cases,
770  * it will end up getting pushed towards the output or optimized away entirely
771  * by the optimization pass.
772  */
773 static SwsConst fmt_clear(enum AVPixelFormat fmt)
774 {
775  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
776  const bool has_chroma = desc->nb_components >= 3;
777  const bool has_alpha = desc->flags & AV_PIX_FMT_FLAG_ALPHA;
778 
779  SwsConst c = {0};
780  if (!has_chroma)
781  c.q4[1] = c.q4[2] = Q0;
782  if (!has_alpha)
783  c.q4[3] = Q0;
784 
785  return c;
786 }
787 
788 static int fmt_read_write(enum AVPixelFormat fmt, SwsReadWriteOp *rw_op,
789  SwsPackOp *pack_op)
790 {
791  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
792  if (!desc)
793  return AVERROR(EINVAL);
794 
795  switch (fmt) {
796  case AV_PIX_FMT_NONE:
797  case AV_PIX_FMT_NB:
798  break;
799 
800  /* Packed bitstream formats */
801  case AV_PIX_FMT_MONOWHITE:
802  case AV_PIX_FMT_MONOBLACK:
803  *pack_op = (SwsPackOp) {0};
804  *rw_op = (SwsReadWriteOp) {
805  .elems = 1,
806  .frac = 3,
807  };
808  return 0;
809  case AV_PIX_FMT_RGB4:
810  case AV_PIX_FMT_BGR4:
811  *pack_op = (SwsPackOp) {{ 1, 2, 1 }};
812  *rw_op = (SwsReadWriteOp) {
813  .elems = 1,
814  .packed = true,
815  .frac = 1,
816  };
817  return 0;
818  /* Packed 8-bit aligned formats */
819  case AV_PIX_FMT_RGB4_BYTE:
820  case AV_PIX_FMT_BGR4_BYTE:
821  *pack_op = (SwsPackOp) {{ 1, 2, 1 }};
822  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
823  return 0;
824  case AV_PIX_FMT_BGR8:
825  *pack_op = (SwsPackOp) {{ 2, 3, 3 }};
826  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
827  return 0;
828  case AV_PIX_FMT_RGB8:
829  *pack_op = (SwsPackOp) {{ 3, 3, 2 }};
830  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
831  return 0;
832 
833  /* Packed 16-bit aligned formats */
834  case AV_PIX_FMT_RGB565BE:
835  case AV_PIX_FMT_RGB565LE:
836  case AV_PIX_FMT_BGR565BE:
837  case AV_PIX_FMT_BGR565LE:
838  *pack_op = (SwsPackOp) {{ 5, 6, 5 }};
839  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
840  return 0;
841  case AV_PIX_FMT_RGB555BE:
842  case AV_PIX_FMT_RGB555LE:
843  case AV_PIX_FMT_BGR555BE:
844  case AV_PIX_FMT_BGR555LE:
845  *pack_op = (SwsPackOp) {{ 5, 5, 5 }};
846  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
847  return 0;
848  case AV_PIX_FMT_RGB444BE:
849  case AV_PIX_FMT_RGB444LE:
850  case AV_PIX_FMT_BGR444BE:
851  case AV_PIX_FMT_BGR444LE:
852  *pack_op = (SwsPackOp) {{ 4, 4, 4 }};
853  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
854  return 0;
855  /* Packed 32-bit aligned 4:4:4 formats */
856  case AV_PIX_FMT_X2RGB10BE:
857  case AV_PIX_FMT_X2RGB10LE:
858  case AV_PIX_FMT_X2BGR10BE:
859  case AV_PIX_FMT_X2BGR10LE:
860  case AV_PIX_FMT_XV30BE:
861  case AV_PIX_FMT_XV30LE:
862  *pack_op = (SwsPackOp) {{ 2, 10, 10, 10 }};
863  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
864  return 0;
865  case AV_PIX_FMT_V30XBE:
866  case AV_PIX_FMT_V30XLE:
867  *pack_op = (SwsPackOp) {{ 10, 10, 10, 2 }};
868  *rw_op = (SwsReadWriteOp) { .elems = 1, .packed = true };
869  return 0;
870  /* 3 component formats with one channel ignored */
871  case AV_PIX_FMT_RGB0:
872  case AV_PIX_FMT_BGR0:
873  case AV_PIX_FMT_0RGB:
874  case AV_PIX_FMT_0BGR:
875  case AV_PIX_FMT_XV36BE:
876  case AV_PIX_FMT_XV36LE:
877  case AV_PIX_FMT_XV48BE:
878  case AV_PIX_FMT_XV48LE:
879  case AV_PIX_FMT_VUYX:
880  *pack_op = (SwsPackOp) {0};
881  *rw_op = (SwsReadWriteOp) { .elems = 4, .packed = true };
882  return 0;
883  /* Unpacked byte-aligned 4:4:4 formats */
884  case AV_PIX_FMT_YUV444P:
885  case AV_PIX_FMT_YUVJ444P:
886  case AV_PIX_FMT_YUV444P9BE:
887  case AV_PIX_FMT_YUV444P9LE:
888  case AV_PIX_FMT_YUV444P10BE:
889  case AV_PIX_FMT_YUV444P10LE:
890  case AV_PIX_FMT_YUV444P12BE:
891  case AV_PIX_FMT_YUV444P12LE:
892  case AV_PIX_FMT_YUV444P14BE:
893  case AV_PIX_FMT_YUV444P14LE:
894  case AV_PIX_FMT_YUV444P16BE:
895  case AV_PIX_FMT_YUV444P16LE:
896  case AV_PIX_FMT_YUV444P10MSBBE:
897  case AV_PIX_FMT_YUV444P10MSBLE:
898  case AV_PIX_FMT_YUV444P12MSBBE:
899  case AV_PIX_FMT_YUV444P12MSBLE:
900  case AV_PIX_FMT_YUVA444P:
901  case AV_PIX_FMT_YUVA444P9BE:
902  case AV_PIX_FMT_YUVA444P9LE:
903  case AV_PIX_FMT_YUVA444P10BE:
904  case AV_PIX_FMT_YUVA444P10LE:
905  case AV_PIX_FMT_YUVA444P12BE:
906  case AV_PIX_FMT_YUVA444P12LE:
907  case AV_PIX_FMT_YUVA444P16BE:
908  case AV_PIX_FMT_YUVA444P16LE:
909  case AV_PIX_FMT_AYUV:
910  case AV_PIX_FMT_UYVA:
911  case AV_PIX_FMT_VYU444:
912  case AV_PIX_FMT_AYUV64BE:
913  case AV_PIX_FMT_AYUV64LE:
914  case AV_PIX_FMT_VUYA:
915  case AV_PIX_FMT_RGB24:
916  case AV_PIX_FMT_BGR24:
917  case AV_PIX_FMT_RGB48BE:
918  case AV_PIX_FMT_RGB48LE:
919  case AV_PIX_FMT_BGR48BE:
920  case AV_PIX_FMT_BGR48LE:
921  //case AV_PIX_FMT_RGB96BE: TODO: AVRational can't fit 2^32-1
922  //case AV_PIX_FMT_RGB96LE:
923  //case AV_PIX_FMT_RGBF16BE: TODO: no support for float16 currently
924  //case AV_PIX_FMT_RGBF16LE:
925  case AV_PIX_FMT_RGBF32BE:
926  case AV_PIX_FMT_RGBF32LE:
927  case AV_PIX_FMT_ARGB:
928  case AV_PIX_FMT_RGBA:
929  case AV_PIX_FMT_ABGR:
930  case AV_PIX_FMT_BGRA:
931  case AV_PIX_FMT_RGBA64BE:
932  case AV_PIX_FMT_RGBA64LE:
933  case AV_PIX_FMT_BGRA64BE:
934  case AV_PIX_FMT_BGRA64LE:
935  //case AV_PIX_FMT_RGBA128BE: TODO: AVRational can't fit 2^32-1
936  //case AV_PIX_FMT_RGBA128LE:
937  case AV_PIX_FMT_RGBAF32BE:
938  case AV_PIX_FMT_RGBAF32LE:
939  case AV_PIX_FMT_GBRP:
940  case AV_PIX_FMT_GBRP9BE:
941  case AV_PIX_FMT_GBRP9LE:
942  case AV_PIX_FMT_GBRP10BE:
943  case AV_PIX_FMT_GBRP10LE:
944  case AV_PIX_FMT_GBRP12BE:
945  case AV_PIX_FMT_GBRP12LE:
946  case AV_PIX_FMT_GBRP14BE:
947  case AV_PIX_FMT_GBRP14LE:
948  case AV_PIX_FMT_GBRP16BE:
949  case AV_PIX_FMT_GBRP16LE:
950  //case AV_PIX_FMT_GBRPF16BE: TODO
951  //case AV_PIX_FMT_GBRPF16LE:
952  case AV_PIX_FMT_GBRP10MSBBE:
953  case AV_PIX_FMT_GBRP10MSBLE:
954  case AV_PIX_FMT_GBRP12MSBBE:
955  case AV_PIX_FMT_GBRP12MSBLE:
956  case AV_PIX_FMT_GBRPF32BE:
957  case AV_PIX_FMT_GBRPF32LE:
958  case AV_PIX_FMT_GBRAP:
959  case AV_PIX_FMT_GBRAP10BE:
960  case AV_PIX_FMT_GBRAP10LE:
961  case AV_PIX_FMT_GBRAP12BE:
962  case AV_PIX_FMT_GBRAP12LE:
963  case AV_PIX_FMT_GBRAP14BE:
964  case AV_PIX_FMT_GBRAP14LE:
965  case AV_PIX_FMT_GBRAP16BE:
966  case AV_PIX_FMT_GBRAP16LE:
967  //case AV_PIX_FMT_GBRAPF16BE: TODO
968  //case AV_PIX_FMT_GBRAPF16LE:
969  case AV_PIX_FMT_GBRAPF32BE:
970  case AV_PIX_FMT_GBRAPF32LE:
971  case AV_PIX_FMT_GRAY8:
972  case AV_PIX_FMT_GRAY9BE:
973  case AV_PIX_FMT_GRAY9LE:
974  case AV_PIX_FMT_GRAY10BE:
975  case AV_PIX_FMT_GRAY10LE:
976  case AV_PIX_FMT_GRAY12BE:
977  case AV_PIX_FMT_GRAY12LE:
978  case AV_PIX_FMT_GRAY14BE:
979  case AV_PIX_FMT_GRAY14LE:
980  case AV_PIX_FMT_GRAY16BE:
981  case AV_PIX_FMT_GRAY16LE:
982  //case AV_PIX_FMT_GRAYF16BE: TODO
983  //case AV_PIX_FMT_GRAYF16LE:
984  //case AV_PIX_FMT_YAF16BE:
985  //case AV_PIX_FMT_YAF16LE:
986  case AV_PIX_FMT_GRAYF32BE:
987  case AV_PIX_FMT_GRAYF32LE:
988  case AV_PIX_FMT_YAF32BE:
989  case AV_PIX_FMT_YAF32LE:
990  case AV_PIX_FMT_YA8:
991  case AV_PIX_FMT_YA16LE:
992  case AV_PIX_FMT_YA16BE:
993  *pack_op = (SwsPackOp) {0};
994  *rw_op = (SwsReadWriteOp) {
995  .elems = desc->nb_components,
996  .packed = desc->nb_components > 1 && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR),
997  };
998  return 0;
999  }
1000 
1001  return AVERROR(ENOTSUP);
1002 }
1003 
1004 static SwsPixelType get_packed_type(SwsPackOp pack)
1005 {
1006  const int sum = pack.pattern[0] + pack.pattern[1] +
1007  pack.pattern[2] + pack.pattern[3];
1008  if (sum > 16)
1009  return SWS_PIXEL_U32;
1010  else if (sum > 8)
1011  return SWS_PIXEL_U16;
1012  else
1013  return SWS_PIXEL_U8;
1014 }
1015 
1016 #if HAVE_BIGENDIAN
1017 # define NATIVE_ENDIAN_FLAG AV_PIX_FMT_FLAG_BE
1018 #else
1019 # define NATIVE_ENDIAN_FLAG 0
1020 #endif
1021 
1022 int ff_sws_decode_pixfmt(SwsOpList *ops, enum AVPixelFormat fmt)
1023 {
1024  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
1025  SwsPixelType pixel_type = fmt_pixel_type(fmt);
1026  SwsPixelType raw_type = pixel_type;
1027  SwsReadWriteOp rw_op;
1028  SwsPackOp unpack;
1029 
1030  RET(fmt_read_write(fmt, &rw_op, &unpack));
1031  if (unpack.pattern[0])
1032  raw_type = get_packed_type(unpack);
1033 
1034  /* TODO: handle subsampled or semipacked input formats */
1035  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1036  .op = SWS_OP_READ,
1037  .type = raw_type,
1038  .rw = rw_op,
1039  }));
1040 
1041  if ((desc->flags & AV_PIX_FMT_FLAG_BE) != NATIVE_ENDIAN_FLAG) {
1042  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1043  .op = SWS_OP_SWAP_BYTES,
1044  .type = raw_type,
1045  }));
1046  }
1047 
1048  if (unpack.pattern[0]) {
1049  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1050  .op = SWS_OP_UNPACK,
1051  .type = raw_type,
1052  .pack = unpack,
1053  }));
1054 
1055  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1056  .op = SWS_OP_CONVERT,
1057  .type = raw_type,
1058  .convert.to = pixel_type,
1059  }));
1060  }
1061 
1062  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1063  .op = SWS_OP_SWIZZLE,
1064  .type = pixel_type,
1065  .swizzle = swizzle_inv(fmt_swizzle(fmt)),
1066  }));
1067 
1068  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1069  .op = SWS_OP_RSHIFT,
1070  .type = pixel_type,
1071  .c.u = fmt_shift(fmt),
1072  }));
1073 
1074  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1075  .op = SWS_OP_CLEAR,
1076  .type = pixel_type,
1077  .c = fmt_clear(fmt),
1078  }));
1079 
1080  return 0;
1081 }
1082 
1083 int ff_sws_encode_pixfmt(SwsOpList *ops, enum AVPixelFormat fmt)
1084 {
1085  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
1086  SwsPixelType pixel_type = fmt_pixel_type(fmt);
1087  SwsPixelType raw_type = pixel_type;
1088  SwsReadWriteOp rw_op;
1089  SwsPackOp pack;
1090 
1091  RET(fmt_read_write(fmt, &rw_op, &pack));
1092  if (pack.pattern[0])
1093  raw_type = get_packed_type(pack);
1094 
1095  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1096  .op = SWS_OP_LSHIFT,
1097  .type = pixel_type,
1098  .c.u = fmt_shift(fmt),
1099  }));
1100 
1101  if (rw_op.elems > desc->nb_components) {
1102  /* Format writes unused alpha channel, clear it explicitly for sanity */
1103  av_assert1(!(desc->flags & AV_PIX_FMT_FLAG_ALPHA));
1104  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1105  .op = SWS_OP_CLEAR,
1106  .type = pixel_type,
1107  .c.q4[3] = Q0,
1108  }));
1109  }
1110 
1111  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1112  .op = SWS_OP_SWIZZLE,
1113  .type = pixel_type,
1114  .swizzle = fmt_swizzle(fmt),
1115  }));
1116 
1117  if (pack.pattern[0]) {
1118  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1119  .op = SWS_OP_CONVERT,
1120  .type = pixel_type,
1121  .convert.to = raw_type,
1122  }));
1123 
1124  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1125  .op = SWS_OP_PACK,
1126  .type = raw_type,
1127  .pack = pack,
1128  }));
1129  }
1130 
1131  if ((desc->flags & AV_PIX_FMT_FLAG_BE) != NATIVE_ENDIAN_FLAG) {
1132  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1133  .op = SWS_OP_SWAP_BYTES,
1134  .type = raw_type,
1135  }));
1136  }
1137 
1138  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1139  .op = SWS_OP_WRITE,
1140  .type = raw_type,
1141  .rw = rw_op,
1142  }));
1143  return 0;
1144 }
1145 
1146 static inline AVRational av_neg_q(AVRational x)
1147 {
1148  return (AVRational) { -x.num, x.den };
1149 }
1150 
1151 static SwsLinearOp fmt_encode_range(const SwsFormat fmt, bool *incomplete)
1152 {
1153  SwsLinearOp c = { .m = {
1154  { Q1, Q0, Q0, Q0, Q0 },
1155  { Q0, Q1, Q0, Q0, Q0 },
1156  { Q0, Q0, Q1, Q0, Q0 },
1157  { Q0, Q0, Q0, Q1, Q0 },
1158  }};
1159 
1160  const int depth0 = fmt.desc->comp[0].depth;
1161  const int depth1 = fmt.desc->comp[1].depth;
1162  const int depth2 = fmt.desc->comp[2].depth;
1163  const int depth3 = fmt.desc->comp[3].depth;
1164 
1165  if (fmt.desc->flags & AV_PIX_FMT_FLAG_FLOAT)
1166  return c; /* floats are directly output as-is */
1167 
1168  if (fmt.csp == AVCOL_SPC_RGB || (fmt.desc->flags & AV_PIX_FMT_FLAG_XYZ)) {
1169  c.m[0][0] = Q((1 << depth0) - 1);
1170  c.m[1][1] = Q((1 << depth1) - 1);
1171  c.m[2][2] = Q((1 << depth2) - 1);
1172  } else if (fmt.range == AVCOL_RANGE_JPEG) {
1173  /* Full range YUV */
1174  c.m[0][0] = Q((1 << depth0) - 1);
1175  if (fmt.desc->nb_components >= 3) {
1176  /* This follows the ITU-R convention, which is slightly different
1177  * from the JFIF convention. */
1178  c.m[1][1] = Q((1 << depth1) - 1);
1179  c.m[2][2] = Q((1 << depth2) - 1);
1180  c.m[1][4] = Q(1 << (depth1 - 1));
1181  c.m[2][4] = Q(1 << (depth2 - 1));
1182  }
1183  } else {
1184  /* Limited range YUV */
1185  if (fmt.range == AVCOL_RANGE_UNSPECIFIED)
1186  *incomplete = true;
1187  c.m[0][0] = Q(219 << (depth0 - 8));
1188  c.m[0][4] = Q( 16 << (depth0 - 8));
1189  if (fmt.desc->nb_components >= 3) {
1190  c.m[1][1] = Q(224 << (depth1 - 8));
1191  c.m[2][2] = Q(224 << (depth2 - 8));
1192  c.m[1][4] = Q(128 << (depth1 - 8));
1193  c.m[2][4] = Q(128 << (depth2 - 8));
1194  }
1195  }
1196 
1197  if (fmt.desc->flags & AV_PIX_FMT_FLAG_ALPHA) {
1198  const bool is_ya = fmt.desc->nb_components == 2;
1199  c.m[3][3] = Q((1 << (is_ya ? depth1 : depth3)) - 1);
1200  }
1201 
1202  if (fmt.format == AV_PIX_FMT_MONOWHITE) {
1203  /* This format is inverted, 0 = white, 1 = black */
1204  c.m[0][4] = av_add_q(c.m[0][4], c.m[0][0]);
1205  c.m[0][0] = av_neg_q(c.m[0][0]);
1206  }
1207 
1208  c.mask = ff_sws_linear_mask(c);
1209  return c;
1210 }
1211 
1212 static SwsLinearOp fmt_decode_range(const SwsFormat fmt, bool *incomplete)
1213 {
1214  SwsLinearOp c = fmt_encode_range(fmt, incomplete);
1215 
1216  /* Invert main diagonal + offset: x = s * y + k ==> y = (x - k) / s */
1217  for (int i = 0; i < 4; i++) {
1218  c.m[i][i] = av_inv_q(c.m[i][i]);
1219  c.m[i][4] = av_mul_q(c.m[i][4], av_neg_q(c.m[i][i]));
1220  }
1221 
1222  /* Explicitly initialize alpha for sanity */
1223  if (!(fmt.desc->flags & AV_PIX_FMT_FLAG_ALPHA))
1224  c.m[3][4] = Q1;
1225 
1226  c.mask = ff_sws_linear_mask(c);
1227  return c;
1228 }
1229 
1230 static AVRational *generate_bayer_matrix(const int size_log2)
1231 {
1232  const int size = 1 << size_log2;
1233  const int num_entries = size * size;
1234  AVRational *m = av_refstruct_allocz(sizeof(*m) * num_entries);
1235  av_assert1(size_log2 < 16);
1236  if (!m)
1237  return NULL;
1238 
1239  /* Start with a 1x1 matrix */
1240  m[0] = Q0;
1241 
1242  /* Generate three copies of the current, appropriately scaled and offset */
1243  for (int sz = 1; sz < size; sz <<= 1) {
1244  const int den = 4 * sz * sz;
1245  for (int y = 0; y < sz; y++) {
1246  for (int x = 0; x < sz; x++) {
1247  const AVRational cur = m[y * size + x];
1248  m[(y + sz) * size + x + sz] = av_add_q(cur, av_make_q(1, den));
1249  m[(y ) * size + x + sz] = av_add_q(cur, av_make_q(2, den));
1250  m[(y + sz) * size + x ] = av_add_q(cur, av_make_q(3, den));
1251  }
1252  }
1253  }
1254 
1255  /**
1256  * To correctly round, we need to evenly distribute the result on [0, 1),
1257  * giving an average value of 1/2.
1258  *
1259  * After the above construction, we have a matrix with average value:
1260  * [ 0/N + 1/N + 2/N + ... (N-1)/N ] / N = (N-1)/(2N)
1261  * where N = size * size is the total number of entries.
1262  *
1263  * To make the average value equal to 1/2 = N/(2N), add a bias of 1/(2N).
1264  */
1265  for (int i = 0; i < num_entries; i++)
1266  m[i] = av_add_q(m[i], av_make_q(1, 2 * num_entries));
1267 
1268  return m;
1269 }
1270 
1271 static bool trc_is_hdr(enum AVColorTransferCharacteristic trc)
1272 {
1273  static_assert(AVCOL_TRC_NB == 19, "Update this list when adding TRCs");
1274  switch (trc) {
1275  case AVCOL_TRC_LOG:
1276  case AVCOL_TRC_LOG_SQRT:
1277  case AVCOL_TRC_SMPTEST2084:
1278  case AVCOL_TRC_ARIB_STD_B67:
1279  return true;
1280  default:
1281  return false;
1282  }
1283 }
1284 
1285 static int fmt_dither(SwsContext *ctx, SwsOpList *ops,
1286  const SwsPixelType type, const SwsFormat fmt)
1287 {
1288  SwsDither mode = ctx->dither;
1289  SwsDitherOp dither;
1290 
1291  if (mode == SWS_DITHER_AUTO) {
1292  /* Visual threshold of perception: 12 bits for SDR, 14 bits for HDR */
1293  const int jnd_bits = trc_is_hdr(fmt.color.trc) ? 14 : 12;
1294  const int bpc = fmt.desc->comp[0].depth;
1295  mode = bpc >= jnd_bits ? SWS_DITHER_NONE : SWS_DITHER_BAYER;
1296  }
1297 
1298  switch (mode) {
1299  case SWS_DITHER_NONE:
1300  if (ctx->flags & SWS_ACCURATE_RND) {
1301  /* Add constant 0.5 for correct rounding */
1302  AVRational *bias = av_refstruct_allocz(sizeof(*bias));
1303  if (!bias)
1304  return AVERROR(ENOMEM);
1305  *bias = (AVRational) {1, 2};
1306  return ff_sws_op_list_append(ops, &(SwsOp) {
1307  .op = SWS_OP_DITHER,
1308  .type = type,
1309  .dither.matrix = bias,
1310  });
1311  } else {
1312  return 0; /* No-op */
1313  }
1314  case SWS_DITHER_BAYER:
1315  /* Hardcode 16x16 matrix for now; in theory we could adjust this
1316  * based on the expected level of precision in the output, since lower
1317  * bit depth outputs can suffice with smaller dither matrices; however
1318  * in practice we probably want to use error diffusion for such low bit
1319  * depths anyway */
1320  dither.size_log2 = 4;
1321  dither.matrix = generate_bayer_matrix(dither.size_log2);
1322  if (!dither.matrix)
1323  return AVERROR(ENOMEM);
1324  return ff_sws_op_list_append(ops, &(SwsOp) {
1325  .op = SWS_OP_DITHER,
1326  .type = type,
1327  .dither = dither,
1328  });
1329  case SWS_DITHER_ED:
1330  case SWS_DITHER_A_DITHER:
1331  case SWS_DITHER_X_DITHER:
1332  return AVERROR(ENOTSUP);
1333 
1334  case SWS_DITHER_NB:
1335  break;
1336  }
1337 
1338  av_unreachable("Invalid dither mode");
1339  return AVERROR(EINVAL);
1340 }
1341 
1342 static inline SwsLinearOp
1343 linear_mat3(const AVRational m00, const AVRational m01, const AVRational m02,
1344  const AVRational m10, const AVRational m11, const AVRational m12,
1345  const AVRational m20, const AVRational m21, const AVRational m22)
1346 {
1347  SwsLinearOp c = {{
1348  { m00, m01, m02, Q0, Q0 },
1349  { m10, m11, m12, Q0, Q0 },
1350  { m20, m21, m22, Q0, Q0 },
1351  { Q0, Q0, Q0, Q1, Q0 },
1352  }};
1353 
1354  c.mask = ff_sws_linear_mask(c);
1355  return c;
1356 }
1357 
1358 int ff_sws_decode_colors(SwsContext *ctx, SwsPixelType type,
1359  SwsOpList *ops, const SwsFormat fmt, bool *incomplete)
1360 {
1361  const AVLumaCoefficients *c = av_csp_luma_coeffs_from_avcsp(fmt.csp);
1362 
1363  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1364  .op = SWS_OP_CONVERT,
1365  .type = fmt_pixel_type(fmt.format),
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 fmt, bool *incomplete)
1442 {
1443  const AVLumaCoefficients *c = av_csp_luma_coeffs_from_avcsp(fmt.csp);
1444 
1445  switch (fmt.csp) {
1446  case AVCOL_SPC_RGB:
1447  break;
1448  case AVCOL_SPC_UNSPECIFIED:
1449  c = av_csp_luma_coeffs_from_avcsp(AVCOL_SPC_BT470BG);
1450  *incomplete = true;
1451  /* fall through */
1452  case AVCOL_SPC_FCC:
1453  case AVCOL_SPC_BT470BG:
1454  case AVCOL_SPC_SMPTE170M:
1455  case AVCOL_SPC_BT709:
1456  case AVCOL_SPC_SMPTE240M:
1457  case AVCOL_SPC_BT2020_NCL: {
1458  AVRational cb1 = av_sub_q(c->cb, Q1);
1459  AVRational cr1 = av_sub_q(c->cr, Q1);
1460  AVRational m20 = av_make_q(1,2);
1461  AVRational m10 = av_mul_q(m20, av_div_q(c->cr, cb1));
1462  AVRational m11 = av_mul_q(m20, av_div_q(c->cg, cb1));
1463  AVRational m21 = av_mul_q(m20, av_div_q(c->cg, cr1));
1464  AVRational m22 = av_mul_q(m20, av_div_q(c->cb, cr1));
1465 
1466  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1467  .type = type,
1468  .op = SWS_OP_LINEAR,
1469  .lin = linear_mat3(
1470  c->cr, c->cg, c->cb,
1471  m10, m11, m20,
1472  m20, m21, m22
1473  ),
1474  }));
1475  break;
1476  }
1477 
1478  case AVCOL_SPC_YCGCO:
1479  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1480  .type = type,
1481  .op = SWS_OP_LINEAR,
1482  .lin = linear_mat3(
1483  av_make_q( 1, 4), av_make_q(1, 2), av_make_q( 1, 4),
1484  av_make_q( 1, 2), av_make_q(0, 1), av_make_q(-1, 2),
1485  av_make_q(-1, 4), av_make_q(1, 2), av_make_q(-1, 4)
1486  ),
1487  }));
1488  break;
1489 
1490  case AVCOL_SPC_BT2020_CL:
1491  case AVCOL_SPC_SMPTE2085:
1492  case AVCOL_SPC_CHROMA_DERIVED_NCL:
1493  case AVCOL_SPC_CHROMA_DERIVED_CL:
1494  case AVCOL_SPC_ICTCP:
1495  case AVCOL_SPC_IPT_C2:
1496  case AVCOL_SPC_YCGCO_RE:
1497  case AVCOL_SPC_YCGCO_RO:
1498  return AVERROR(ENOTSUP);
1499 
1500  case AVCOL_SPC_RESERVED:
1501  case AVCOL_SPC_NB:
1502  return AVERROR(EINVAL);
1503  }
1504 
1505  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1506  .type = type,
1507  .op = SWS_OP_LINEAR,
1508  .lin = fmt_encode_range(fmt, incomplete),
1509  }));
1510 
1511  if (!(fmt.desc->flags & AV_PIX_FMT_FLAG_FLOAT)) {
1512  SwsConst range = {0};
1513 
1514  const bool is_ya = fmt.desc->nb_components == 2;
1515  for (int i = 0; i < fmt.desc->nb_components; i++) {
1516  /* Clamp to legal pixel range */
1517  const int idx = i * (is_ya ? 3 : 1);
1518  range.q4[idx] = Q((1 << fmt.desc->comp[i].depth) - 1);
1519  }
1520 
1521  RET(fmt_dither(ctx, ops, type, fmt));
1522  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1523  .op = SWS_OP_MAX,
1524  .type = type,
1525  .c.q4 = { Q0, Q0, Q0, Q0 },
1526  }));
1527 
1528  RET(ff_sws_op_list_append(ops, &(SwsOp) {
1529  .op = SWS_OP_MIN,
1530  .type = type,
1531  .c = range,
1532  }));
1533  }
1534 
1535  return ff_sws_op_list_append(ops, &(SwsOp) {
1536  .type = type,
1537  .op = SWS_OP_CONVERT,
1538  .convert.to = fmt_pixel_type(fmt.format),
1539  });
1540 }
1541 
1542 #endif /* CONFIG_UNSTABLE */
AVCOL_PRI_RESERVED
@ AVCOL_PRI_RESERVED
Definition: pixfmt.h:640
SWS_OP_READ
@ SWS_OP_READ
Definition: ops.h:48
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:570
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:33
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:34
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:58
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:56
SWS_OP_UNPACK
@ SWS_OP_UNPACK
Definition: ops.h:51
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:661
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:307
out
FILE * out
Definition: movenc.c:55
av_frame_get_side_data
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:659
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
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:708
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:3447
SwsConst
Definition: ops.h:77
SWS_OP_CLEAR
@ SWS_OP_CLEAR
Definition: ops.h:55
ff_sws_linear_mask
uint32_t ff_sws_linear_mask(const SwsLinearOp c)
Definition: ops.c:328
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:122
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:312
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
mode
Definition: swscale.c:56
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:683
SwsFormat::range
enum AVColorRange range
Definition: format.h:81
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
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:32
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:767
SWS_DITHER_NONE
@ SWS_DITHER_NONE
Definition: swscale.h:80
SWS_OP_DITHER
@ SWS_OP_DITHER
Definition: ops.h:60
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:547
AVCOL_SPC_NB
@ AVCOL_SPC_NB
Not part of ABI.
Definition: pixfmt.h:710
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:664
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
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:691
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:34
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:702
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:48
AV_PIX_FMT_NB
@ AV_PIX_FMT_NB
hardware decoding through openharmony
Definition: pixfmt.h:502
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:30
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
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:696
AVCOL_SPC_RESERVED
@ AVCOL_SPC_RESERVED
reserved for future use by ITU-T and ISO/IEC just like 15-255 are
Definition: pixfmt.h:694
SwsSwizzleOp::w
uint8_t w
Definition: ops.h:122
SWS_PIXEL_F32
@ SWS_PIXEL_F32
Definition: ops.h:35
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:459
SwsDitherOp
Definition: ops.h:133
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:768
SWS_PIXEL_U8
@ SWS_PIXEL_U8
Definition: ops.h:32
SwsReadWriteOp
Definition: ops.h:96
SwsSwizzleOp
Definition: ops.h:114
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:672
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
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
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
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
ff_sws_encode_colors
int ff_sws_encode_colors(SwsContext *ctx, SwsPixelType type, SwsOpList *ops, const SwsFormat fmt, bool *incomplete)
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:90
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
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:1415
AV_PIX_FMT_BAYER_BGGR8
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:285
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:697
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
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:42
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:41
SWS_OP_MIN
@ SWS_OP_MIN
Definition: ops.h:65
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:530
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
ctx
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:63
LegacyFormatEntry::is_supported_out
uint8_t is_supported_out
Definition: format.c:43
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:707
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:705
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:31
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:52
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:560
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
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:108
sws_is_noop
int sws_is_noop(const AVFrame *dst, const AVFrame *src)
Check if a given conversion is a noop.
Definition: format.c:594
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:508
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 pixel format is supported.
Definition: format.c:525
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:699
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:733
SWS_PIXEL_NONE
@ SWS_PIXEL_NONE
Definition: ops.h:31
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:678
AVPrimaryCoefficients::b
AVCIExy b
Definition: csp.h:65
SwsPackOp::pattern
uint8_t pattern[4]
Definition: ops.h:111
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:44
test_loc
static int test_loc(enum AVChromaLocation loc)
Definition: format.c:565
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
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:679
AVCOL_SPC_YCGCO_RO
@ AVCOL_SPC_YCGCO_RO
YCgCo-R, odd addition of bits.
Definition: pixfmt.h:709
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
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:671
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:57
AV_PIX_FMT_GBRP9BE
@ AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:167
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:787
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:49
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:83
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
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:553
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
SWS_DITHER_NB
@ SWS_DITHER_NB
Definition: swscale.h:86
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:285
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:138
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:704
SwsColor::frame_avg
AVRational frame_avg
Definition: format.h:67
Q
#define Q(N)
Definition: format.c:30
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:663
AVChromaLocation
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:786
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:698
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
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:297
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
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:701
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:690
SwsPackOp
Definition: ops.h:110
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:84
av_assert1
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:57
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:291
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
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:581
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:179
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:693
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:162
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
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
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:66
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:129
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...
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
AV_PIX_FMT_RGBAF32BE
@ AV_PIX_FMT_RGBAF32BE
IEEE-754 single precision packed RGBA 32:32:32:32, 128bpp, RGBARGBA..., big-endian.
Definition: pixfmt.h:423
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:682
AV_PIX_FMT_Y210BE
@ AV_PIX_FMT_Y210BE
packed YUV 4:2:2 like YUYV422, 20bpp, data in the high bits, big-endian
Definition: pixfmt.h:381
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
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:695
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:122
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:50
SwsFormat::color
SwsColor color
Definition: format.h:85
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:122
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:82
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
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:79
SwsReadWriteOp::elems
uint8_t elems
Definition: ops.h:97
AV_PIX_FMT_RGBAF32LE
@ AV_PIX_FMT_RGBAF32LE
IEEE-754 single precision packed RGBA 32:32:32:32, 128bpp, RGBARGBA..., little-endian.
Definition: pixfmt.h:424
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:41
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:703
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
SWS_OP_CONVERT
@ SWS_OP_CONVERT
Definition: ops.h:59
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:605
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
AVCHROMA_LOC_NB
@ AVCHROMA_LOC_NB
Not part of ABI.
Definition: pixfmt.h:794
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
FIELD_TOP
@ FIELD_TOP
Definition: format.h:56
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:680
SWS_ACCURATE_RND
@ SWS_ACCURATE_RND
Force bit-exact output.
Definition: swscale.h:155
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:209
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:692
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:732
SwsContext
Main external API structure.
Definition: swscale.h:189
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:706
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
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:483
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:631
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
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
dither
static const uint8_t dither[8][8]
Definition: vf_fspp.c:62
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