FFmpeg  4.4.7
utils.c
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1 /*
2  * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
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 "config.h"
22 
23 #define _DEFAULT_SOURCE
24 #define _SVID_SOURCE // needed for MAP_ANONYMOUS
25 #define _DARWIN_C_SOURCE // needed for MAP_ANON
26 #include <inttypes.h>
27 #include <math.h>
28 #include <stdio.h>
29 #include <string.h>
30 #if HAVE_MMAP
31 #include <sys/mman.h>
32 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
33 #define MAP_ANONYMOUS MAP_ANON
34 #endif
35 #endif
36 #if HAVE_VIRTUALALLOC
37 #define WIN32_LEAN_AND_MEAN
38 #include <windows.h>
39 #endif
40 
41 #include "libavutil/attributes.h"
42 #include "libavutil/avassert.h"
43 #include "libavutil/avutil.h"
44 #include "libavutil/bswap.h"
45 #include "libavutil/cpu.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/intreadwrite.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/mathematics.h"
50 #include "libavutil/opt.h"
51 #include "libavutil/pixdesc.h"
52 #include "libavutil/aarch64/cpu.h"
53 #include "libavutil/ppc/cpu.h"
54 #include "libavutil/x86/asm.h"
55 #include "libavutil/x86/cpu.h"
56 
57 // We have to implement deprecated functions until they are removed, this is the
58 // simplest way to prevent warnings
59 #undef attribute_deprecated
60 #define attribute_deprecated
61 
62 #include "rgb2rgb.h"
63 #include "swscale.h"
64 #include "swscale_internal.h"
65 
66 #if !FF_API_SWS_VECTOR
67 static SwsVector *sws_getIdentityVec(void);
68 static void sws_addVec(SwsVector *a, SwsVector *b);
69 static void sws_shiftVec(SwsVector *a, int shift);
70 static void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level);
71 #endif
72 
73 static void handle_formats(SwsContext *c);
74 
75 unsigned swscale_version(void)
76 {
77  av_assert0(LIBSWSCALE_VERSION_MICRO >= 100);
78  return LIBSWSCALE_VERSION_INT;
79 }
80 
81 const char *swscale_configuration(void)
82 {
83  return FFMPEG_CONFIGURATION;
84 }
85 
86 const char *swscale_license(void)
87 {
88 #define LICENSE_PREFIX "libswscale license: "
89  return &LICENSE_PREFIX FFMPEG_LICENSE[sizeof(LICENSE_PREFIX) - 1];
90 }
91 
92 typedef struct FormatEntry {
93  uint8_t is_supported_in :1;
94  uint8_t is_supported_out :1;
95  uint8_t is_supported_endianness :1;
96 } FormatEntry;
97 
98 static const FormatEntry format_entries[] = {
99  [AV_PIX_FMT_YUV420P] = { 1, 1 },
100  [AV_PIX_FMT_YUYV422] = { 1, 1 },
101  [AV_PIX_FMT_RGB24] = { 1, 1 },
102  [AV_PIX_FMT_BGR24] = { 1, 1 },
103  [AV_PIX_FMT_YUV422P] = { 1, 1 },
104  [AV_PIX_FMT_YUV444P] = { 1, 1 },
105  [AV_PIX_FMT_YUV410P] = { 1, 1 },
106  [AV_PIX_FMT_YUV411P] = { 1, 1 },
107  [AV_PIX_FMT_GRAY8] = { 1, 1 },
108  [AV_PIX_FMT_MONOWHITE] = { 1, 1 },
109  [AV_PIX_FMT_MONOBLACK] = { 1, 1 },
110  [AV_PIX_FMT_PAL8] = { 1, 0 },
111  [AV_PIX_FMT_YUVJ420P] = { 1, 1 },
112  [AV_PIX_FMT_YUVJ411P] = { 1, 1 },
113  [AV_PIX_FMT_YUVJ422P] = { 1, 1 },
114  [AV_PIX_FMT_YUVJ444P] = { 1, 1 },
115  [AV_PIX_FMT_YVYU422] = { 1, 1 },
116  [AV_PIX_FMT_UYVY422] = { 1, 1 },
117  [AV_PIX_FMT_UYYVYY411] = { 0, 0 },
118  [AV_PIX_FMT_BGR8] = { 1, 1 },
119  [AV_PIX_FMT_BGR4] = { 0, 1 },
120  [AV_PIX_FMT_BGR4_BYTE] = { 1, 1 },
121  [AV_PIX_FMT_RGB8] = { 1, 1 },
122  [AV_PIX_FMT_RGB4] = { 0, 1 },
123  [AV_PIX_FMT_RGB4_BYTE] = { 1, 1 },
124  [AV_PIX_FMT_NV12] = { 1, 1 },
125  [AV_PIX_FMT_NV21] = { 1, 1 },
126  [AV_PIX_FMT_ARGB] = { 1, 1 },
127  [AV_PIX_FMT_RGBA] = { 1, 1 },
128  [AV_PIX_FMT_ABGR] = { 1, 1 },
129  [AV_PIX_FMT_BGRA] = { 1, 1 },
130  [AV_PIX_FMT_0RGB] = { 1, 1 },
131  [AV_PIX_FMT_RGB0] = { 1, 1 },
132  [AV_PIX_FMT_0BGR] = { 1, 1 },
133  [AV_PIX_FMT_BGR0] = { 1, 1 },
134  [AV_PIX_FMT_GRAY9BE] = { 1, 1 },
135  [AV_PIX_FMT_GRAY9LE] = { 1, 1 },
136  [AV_PIX_FMT_GRAY10BE] = { 1, 1 },
137  [AV_PIX_FMT_GRAY10LE] = { 1, 1 },
138  [AV_PIX_FMT_GRAY12BE] = { 1, 1 },
139  [AV_PIX_FMT_GRAY12LE] = { 1, 1 },
140  [AV_PIX_FMT_GRAY14BE] = { 1, 1 },
141  [AV_PIX_FMT_GRAY14LE] = { 1, 1 },
142  [AV_PIX_FMT_GRAY16BE] = { 1, 1 },
143  [AV_PIX_FMT_GRAY16LE] = { 1, 1 },
144  [AV_PIX_FMT_YUV440P] = { 1, 1 },
145  [AV_PIX_FMT_YUVJ440P] = { 1, 1 },
146  [AV_PIX_FMT_YUV440P10LE] = { 1, 1 },
147  [AV_PIX_FMT_YUV440P10BE] = { 1, 1 },
148  [AV_PIX_FMT_YUV440P12LE] = { 1, 1 },
149  [AV_PIX_FMT_YUV440P12BE] = { 1, 1 },
150  [AV_PIX_FMT_YUVA420P] = { 1, 1 },
151  [AV_PIX_FMT_YUVA422P] = { 1, 1 },
152  [AV_PIX_FMT_YUVA444P] = { 1, 1 },
153  [AV_PIX_FMT_YUVA420P9BE] = { 1, 1 },
154  [AV_PIX_FMT_YUVA420P9LE] = { 1, 1 },
155  [AV_PIX_FMT_YUVA422P9BE] = { 1, 1 },
156  [AV_PIX_FMT_YUVA422P9LE] = { 1, 1 },
157  [AV_PIX_FMT_YUVA444P9BE] = { 1, 1 },
158  [AV_PIX_FMT_YUVA444P9LE] = { 1, 1 },
159  [AV_PIX_FMT_YUVA420P10BE]= { 1, 1 },
160  [AV_PIX_FMT_YUVA420P10LE]= { 1, 1 },
161  [AV_PIX_FMT_YUVA422P10BE]= { 1, 1 },
162  [AV_PIX_FMT_YUVA422P10LE]= { 1, 1 },
163  [AV_PIX_FMT_YUVA444P10BE]= { 1, 1 },
164  [AV_PIX_FMT_YUVA444P10LE]= { 1, 1 },
165  [AV_PIX_FMT_YUVA420P16BE]= { 1, 1 },
166  [AV_PIX_FMT_YUVA420P16LE]= { 1, 1 },
167  [AV_PIX_FMT_YUVA422P16BE]= { 1, 1 },
168  [AV_PIX_FMT_YUVA422P16LE]= { 1, 1 },
169  [AV_PIX_FMT_YUVA444P16BE]= { 1, 1 },
170  [AV_PIX_FMT_YUVA444P16LE]= { 1, 1 },
171  [AV_PIX_FMT_RGB48BE] = { 1, 1 },
172  [AV_PIX_FMT_RGB48LE] = { 1, 1 },
173  [AV_PIX_FMT_RGBA64BE] = { 1, 1, 1 },
174  [AV_PIX_FMT_RGBA64LE] = { 1, 1, 1 },
175  [AV_PIX_FMT_RGB565BE] = { 1, 1 },
176  [AV_PIX_FMT_RGB565LE] = { 1, 1 },
177  [AV_PIX_FMT_RGB555BE] = { 1, 1 },
178  [AV_PIX_FMT_RGB555LE] = { 1, 1 },
179  [AV_PIX_FMT_BGR565BE] = { 1, 1 },
180  [AV_PIX_FMT_BGR565LE] = { 1, 1 },
181  [AV_PIX_FMT_BGR555BE] = { 1, 1 },
182  [AV_PIX_FMT_BGR555LE] = { 1, 1 },
183  [AV_PIX_FMT_YUV420P16LE] = { 1, 1 },
184  [AV_PIX_FMT_YUV420P16BE] = { 1, 1 },
185  [AV_PIX_FMT_YUV422P16LE] = { 1, 1 },
186  [AV_PIX_FMT_YUV422P16BE] = { 1, 1 },
187  [AV_PIX_FMT_YUV444P16LE] = { 1, 1 },
188  [AV_PIX_FMT_YUV444P16BE] = { 1, 1 },
189  [AV_PIX_FMT_RGB444LE] = { 1, 1 },
190  [AV_PIX_FMT_RGB444BE] = { 1, 1 },
191  [AV_PIX_FMT_BGR444LE] = { 1, 1 },
192  [AV_PIX_FMT_BGR444BE] = { 1, 1 },
193  [AV_PIX_FMT_YA8] = { 1, 1 },
194  [AV_PIX_FMT_YA16BE] = { 1, 1 },
195  [AV_PIX_FMT_YA16LE] = { 1, 1 },
196  [AV_PIX_FMT_BGR48BE] = { 1, 1 },
197  [AV_PIX_FMT_BGR48LE] = { 1, 1 },
198  [AV_PIX_FMT_BGRA64BE] = { 1, 1, 1 },
199  [AV_PIX_FMT_BGRA64LE] = { 1, 1, 1 },
200  [AV_PIX_FMT_YUV420P9BE] = { 1, 1 },
201  [AV_PIX_FMT_YUV420P9LE] = { 1, 1 },
202  [AV_PIX_FMT_YUV420P10BE] = { 1, 1 },
203  [AV_PIX_FMT_YUV420P10LE] = { 1, 1 },
204  [AV_PIX_FMT_YUV420P12BE] = { 1, 1 },
205  [AV_PIX_FMT_YUV420P12LE] = { 1, 1 },
206  [AV_PIX_FMT_YUV420P14BE] = { 1, 1 },
207  [AV_PIX_FMT_YUV420P14LE] = { 1, 1 },
208  [AV_PIX_FMT_YUV422P9BE] = { 1, 1 },
209  [AV_PIX_FMT_YUV422P9LE] = { 1, 1 },
210  [AV_PIX_FMT_YUV422P10BE] = { 1, 1 },
211  [AV_PIX_FMT_YUV422P10LE] = { 1, 1 },
212  [AV_PIX_FMT_YUV422P12BE] = { 1, 1 },
213  [AV_PIX_FMT_YUV422P12LE] = { 1, 1 },
214  [AV_PIX_FMT_YUV422P14BE] = { 1, 1 },
215  [AV_PIX_FMT_YUV422P14LE] = { 1, 1 },
216  [AV_PIX_FMT_YUV444P9BE] = { 1, 1 },
217  [AV_PIX_FMT_YUV444P9LE] = { 1, 1 },
218  [AV_PIX_FMT_YUV444P10BE] = { 1, 1 },
219  [AV_PIX_FMT_YUV444P10LE] = { 1, 1 },
220  [AV_PIX_FMT_YUV444P12BE] = { 1, 1 },
221  [AV_PIX_FMT_YUV444P12LE] = { 1, 1 },
222  [AV_PIX_FMT_YUV444P14BE] = { 1, 1 },
223  [AV_PIX_FMT_YUV444P14LE] = { 1, 1 },
224  [AV_PIX_FMT_GBRP] = { 1, 1 },
225  [AV_PIX_FMT_GBRP9LE] = { 1, 1 },
226  [AV_PIX_FMT_GBRP9BE] = { 1, 1 },
227  [AV_PIX_FMT_GBRP10LE] = { 1, 1 },
228  [AV_PIX_FMT_GBRP10BE] = { 1, 1 },
229  [AV_PIX_FMT_GBRAP10LE] = { 1, 1 },
230  [AV_PIX_FMT_GBRAP10BE] = { 1, 1 },
231  [AV_PIX_FMT_GBRP12LE] = { 1, 1 },
232  [AV_PIX_FMT_GBRP12BE] = { 1, 1 },
233  [AV_PIX_FMT_GBRAP12LE] = { 1, 1 },
234  [AV_PIX_FMT_GBRAP12BE] = { 1, 1 },
235  [AV_PIX_FMT_GBRP14LE] = { 1, 1 },
236  [AV_PIX_FMT_GBRP14BE] = { 1, 1 },
237  [AV_PIX_FMT_GBRP16LE] = { 1, 1 },
238  [AV_PIX_FMT_GBRP16BE] = { 1, 1 },
239  [AV_PIX_FMT_GBRPF32LE] = { 1, 1 },
240  [AV_PIX_FMT_GBRPF32BE] = { 1, 1 },
241  [AV_PIX_FMT_GBRAPF32LE] = { 1, 1 },
242  [AV_PIX_FMT_GBRAPF32BE] = { 1, 1 },
243  [AV_PIX_FMT_GBRAP] = { 1, 1 },
244  [AV_PIX_FMT_GBRAP16LE] = { 1, 1 },
245  [AV_PIX_FMT_GBRAP16BE] = { 1, 1 },
246  [AV_PIX_FMT_BAYER_BGGR8] = { 1, 0 },
247  [AV_PIX_FMT_BAYER_RGGB8] = { 1, 0 },
248  [AV_PIX_FMT_BAYER_GBRG8] = { 1, 0 },
249  [AV_PIX_FMT_BAYER_GRBG8] = { 1, 0 },
250  [AV_PIX_FMT_BAYER_BGGR16LE] = { 1, 0 },
251  [AV_PIX_FMT_BAYER_BGGR16BE] = { 1, 0 },
252  [AV_PIX_FMT_BAYER_RGGB16LE] = { 1, 0 },
253  [AV_PIX_FMT_BAYER_RGGB16BE] = { 1, 0 },
254  [AV_PIX_FMT_BAYER_GBRG16LE] = { 1, 0 },
255  [AV_PIX_FMT_BAYER_GBRG16BE] = { 1, 0 },
256  [AV_PIX_FMT_BAYER_GRBG16LE] = { 1, 0 },
257  [AV_PIX_FMT_BAYER_GRBG16BE] = { 1, 0 },
258  [AV_PIX_FMT_XYZ12BE] = { 1, 1, 1 },
259  [AV_PIX_FMT_XYZ12LE] = { 1, 1, 1 },
260  [AV_PIX_FMT_AYUV64LE] = { 1, 1},
261  [AV_PIX_FMT_P010LE] = { 1, 1 },
262  [AV_PIX_FMT_P010BE] = { 1, 1 },
263  [AV_PIX_FMT_P016LE] = { 1, 1 },
264  [AV_PIX_FMT_P016BE] = { 1, 1 },
265  [AV_PIX_FMT_GRAYF32LE] = { 1, 1 },
266  [AV_PIX_FMT_GRAYF32BE] = { 1, 1 },
267  [AV_PIX_FMT_YUVA422P12BE] = { 1, 1 },
268  [AV_PIX_FMT_YUVA422P12LE] = { 1, 1 },
269  [AV_PIX_FMT_YUVA444P12BE] = { 1, 1 },
270  [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
271  [AV_PIX_FMT_NV24] = { 1, 1 },
272  [AV_PIX_FMT_NV42] = { 1, 1 },
273  [AV_PIX_FMT_Y210LE] = { 1, 0 },
274  [AV_PIX_FMT_X2RGB10LE] = { 1, 1 },
275 };
276 
277 int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
278 {
279  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
280  format_entries[pix_fmt].is_supported_in : 0;
281 }
282 
283 int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
284 {
285  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
286  format_entries[pix_fmt].is_supported_out : 0;
287 }
288 
289 int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
290 {
291  return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
292  format_entries[pix_fmt].is_supported_endianness : 0;
293 }
294 
295 static double getSplineCoeff(double a, double b, double c, double d,
296  double dist)
297 {
298  if (dist <= 1.0)
299  return ((d * dist + c) * dist + b) * dist + a;
300  else
301  return getSplineCoeff(0.0,
302  b + 2.0 * c + 3.0 * d,
303  c + 3.0 * d,
304  -b - 3.0 * c - 6.0 * d,
305  dist - 1.0);
306 }
307 
308 static av_cold int get_local_pos(SwsContext *s, int chr_subsample, int pos, int dir)
309 {
310  if (pos == -1 || pos <= -513) {
311  pos = (128 << chr_subsample) - 128;
312  }
313  pos += 128; // relative to ideal left edge
314  return pos >> chr_subsample;
315 }
316 
317 typedef struct {
318  int flag; ///< flag associated to the algorithm
319  const char *description; ///< human-readable description
320  int size_factor; ///< size factor used when initing the filters
321 } ScaleAlgorithm;
322 
323 static const ScaleAlgorithm scale_algorithms[] = {
324  { SWS_AREA, "area averaging", 1 /* downscale only, for upscale it is bilinear */ },
325  { SWS_BICUBIC, "bicubic", 4 },
326  { SWS_BICUBLIN, "luma bicubic / chroma bilinear", -1 },
327  { SWS_BILINEAR, "bilinear", 2 },
328  { SWS_FAST_BILINEAR, "fast bilinear", -1 },
329  { SWS_GAUSS, "Gaussian", 8 /* infinite ;) */ },
330  { SWS_LANCZOS, "Lanczos", -1 /* custom */ },
331  { SWS_POINT, "nearest neighbor / point", -1 },
332  { SWS_SINC, "sinc", 20 /* infinite ;) */ },
333  { SWS_SPLINE, "bicubic spline", 20 /* infinite :)*/ },
334  { SWS_X, "experimental", 8 },
335 };
336 
337 static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
338  int *outFilterSize, int xInc, int srcW,
339  int dstW, int filterAlign, int one,
340  int flags, int cpu_flags,
341  SwsVector *srcFilter, SwsVector *dstFilter,
342  double param[2], int srcPos, int dstPos)
343 {
344  int i;
345  int filterSize;
346  int filter2Size;
347  int minFilterSize;
348  int64_t *filter = NULL;
349  int64_t *filter2 = NULL;
350  const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
351  int ret = -1;
352 
353  emms_c(); // FIXME should not be required but IS (even for non-MMX versions)
354 
355  // NOTE: the +3 is for the MMX(+1) / SSE(+3) scaler which reads over the end
356  if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
357  goto nomem;
358 
359  if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
360  int i;
361  filterSize = 1;
362  if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
363  goto nomem;
364 
365  for (i = 0; i < dstW; i++) {
366  filter[i * filterSize] = fone;
367  (*filterPos)[i] = i;
368  }
369  } else if (flags & SWS_POINT) { // lame looking point sampling mode
370  int i;
371  int64_t xDstInSrc;
372  filterSize = 1;
373  if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
374  goto nomem;
375 
376  xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
377  for (i = 0; i < dstW; i++) {
378  int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
379 
380  (*filterPos)[i] = xx;
381  filter[i] = fone;
382  xDstInSrc += xInc;
383  }
384  } else if ((xInc <= (1 << 16) && (flags & SWS_AREA)) ||
385  (flags & SWS_FAST_BILINEAR)) { // bilinear upscale
386  int i;
387  int64_t xDstInSrc;
388  filterSize = 2;
389  if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
390  goto nomem;
391 
392  xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
393  for (i = 0; i < dstW; i++) {
394  int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
395  int j;
396 
397  (*filterPos)[i] = xx;
398  // bilinear upscale / linear interpolate / area averaging
399  for (j = 0; j < filterSize; j++) {
400  int64_t coeff = fone - FFABS((int64_t)xx * (1 << 16) - xDstInSrc) * (fone >> 16);
401  if (coeff < 0)
402  coeff = 0;
403  filter[i * filterSize + j] = coeff;
404  xx++;
405  }
406  xDstInSrc += xInc;
407  }
408  } else {
409  int64_t xDstInSrc;
410  int sizeFactor = -1;
411 
412  for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
413  if (flags & scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
414  sizeFactor = scale_algorithms[i].size_factor;
415  break;
416  }
417  }
418  if (flags & SWS_LANCZOS)
419  sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
420  av_assert0(sizeFactor > 0);
421 
422  if (sizeFactor > 50) {
423  ret = AVERROR(EINVAL);
424  goto fail;
425  }
426 
427  if (xInc <= 1 << 16)
428  filterSize = 1 + sizeFactor; // upscale
429  else
430  filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
431 
432  filterSize = FFMIN(filterSize, srcW - 2);
433  filterSize = FFMAX(filterSize, 1);
434 
435  filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
436  if (!filter)
437  goto nomem;
438  xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
439  for (i = 0; i < dstW; i++) {
440  int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
441  int j;
442  (*filterPos)[i] = xx;
443  for (j = 0; j < filterSize; j++) {
444  int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
445  double floatd;
446  int64_t coeff;
447 
448  if (xInc > 1 << 16)
449  d = d * dstW / srcW;
450  floatd = d * (1.0 / (1 << 30));
451 
452  if (flags & SWS_BICUBIC) {
453  int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
454  int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
455 
456  if (d >= 1LL << 31) {
457  coeff = 0.0;
458  } else {
459  int64_t dd = (d * d) >> 30;
460  int64_t ddd = (dd * d) >> 30;
461 
462  if (d < 1LL << 30)
463  coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
464  (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
465  (6 * (1 << 24) - 2 * B) * (1 << 30);
466  else
467  coeff = (-B - 6 * C) * ddd +
468  (6 * B + 30 * C) * dd +
469  (-12 * B - 48 * C) * d +
470  (8 * B + 24 * C) * (1 << 30);
471  }
472  coeff /= (1LL<<54)/fone;
473  } else if (flags & SWS_X) {
474  double A = param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
475  double c;
476 
477  if (floatd < 1.0)
478  c = cos(floatd * M_PI);
479  else
480  c = -1.0;
481  if (c < 0.0)
482  c = -pow(-c, A);
483  else
484  c = pow(c, A);
485  coeff = (c * 0.5 + 0.5) * fone;
486  } else if (flags & SWS_AREA) {
487  int64_t d2 = d - (1 << 29);
488  if (d2 * xInc < -(1LL << (29 + 16)))
489  coeff = 1.0 * (1LL << (30 + 16));
490  else if (d2 * xInc < (1LL << (29 + 16)))
491  coeff = -d2 * xInc + (1LL << (29 + 16));
492  else
493  coeff = 0.0;
494  coeff *= fone >> (30 + 16);
495  } else if (flags & SWS_GAUSS) {
496  double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
497  coeff = exp2(-p * floatd * floatd) * fone;
498  } else if (flags & SWS_SINC) {
499  coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
500  } else if (flags & SWS_LANCZOS) {
501  double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
502  coeff = (d ? sin(floatd * M_PI) * sin(floatd * M_PI / p) /
503  (floatd * floatd * M_PI * M_PI / p) : 1.0) * fone;
504  if (floatd > p)
505  coeff = 0;
506  } else if (flags & SWS_BILINEAR) {
507  coeff = (1 << 30) - d;
508  if (coeff < 0)
509  coeff = 0;
510  coeff *= fone >> 30;
511  } else if (flags & SWS_SPLINE) {
512  double p = -2.196152422706632;
513  coeff = getSplineCoeff(1.0, 0.0, p, -p - 1.0, floatd) * fone;
514  } else {
515  av_assert0(0);
516  }
517 
518  filter[i * filterSize + j] = coeff;
519  xx++;
520  }
521  xDstInSrc += 2LL * xInc;
522  }
523  }
524 
525  /* apply src & dst Filter to filter -> filter2
526  * av_free(filter);
527  */
528  av_assert0(filterSize > 0);
529  filter2Size = filterSize;
530  if (srcFilter)
531  filter2Size += srcFilter->length - 1;
532  if (dstFilter)
533  filter2Size += dstFilter->length - 1;
534  av_assert0(filter2Size > 0);
535  filter2 = av_calloc(dstW, filter2Size * sizeof(*filter2));
536  if (!filter2)
537  goto nomem;
538  for (i = 0; i < dstW; i++) {
539  int j, k;
540 
541  if (srcFilter) {
542  for (k = 0; k < srcFilter->length; k++) {
543  for (j = 0; j < filterSize; j++)
544  filter2[i * filter2Size + k + j] +=
545  srcFilter->coeff[k] * filter[i * filterSize + j];
546  }
547  } else {
548  for (j = 0; j < filterSize; j++)
549  filter2[i * filter2Size + j] = filter[i * filterSize + j];
550  }
551  // FIXME dstFilter
552 
553  (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
554  }
555  av_freep(&filter);
556 
557  /* try to reduce the filter-size (step1 find size and shift left) */
558  // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
559  minFilterSize = 0;
560  for (i = dstW - 1; i >= 0; i--) {
561  int min = filter2Size;
562  int j;
563  int64_t cutOff = 0.0;
564 
565  /* get rid of near zero elements on the left by shifting left */
566  for (j = 0; j < filter2Size; j++) {
567  int k;
568  cutOff += FFABS(filter2[i * filter2Size]);
569 
570  if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
571  break;
572 
573  /* preserve monotonicity because the core can't handle the
574  * filter otherwise */
575  if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
576  break;
577 
578  // move filter coefficients left
579  for (k = 1; k < filter2Size; k++)
580  filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
581  filter2[i * filter2Size + k - 1] = 0;
582  (*filterPos)[i]++;
583  }
584 
585  cutOff = 0;
586  /* count near zeros on the right */
587  for (j = filter2Size - 1; j > 0; j--) {
588  cutOff += FFABS(filter2[i * filter2Size + j]);
589 
590  if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
591  break;
592  min--;
593  }
594 
595  if (min > minFilterSize)
596  minFilterSize = min;
597  }
598 
599  if (PPC_ALTIVEC(cpu_flags)) {
600  // we can handle the special case 4, so we don't want to go the full 8
601  if (minFilterSize < 5)
602  filterAlign = 4;
603 
604  /* We really don't want to waste our time doing useless computation, so
605  * fall back on the scalar C code for very small filters.
606  * Vectorizing is worth it only if you have a decent-sized vector. */
607  if (minFilterSize < 3)
608  filterAlign = 1;
609  }
610 
611  if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) {
612  // special case for unscaled vertical filtering
613  if (minFilterSize == 1 && filterAlign == 2)
614  filterAlign = 1;
615  }
616 
617  av_assert0(minFilterSize > 0);
618  filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
619  av_assert0(filterSize > 0);
620  filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
621  if (!filter)
622  goto nomem;
623  if (filterSize >= MAX_FILTER_SIZE * 16 /
624  ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
625  ret = RETCODE_USE_CASCADE;
626  goto fail;
627  }
628  *outFilterSize = filterSize;
629 
630  if (flags & SWS_PRINT_INFO)
631  av_log(NULL, AV_LOG_VERBOSE,
632  "SwScaler: reducing / aligning filtersize %d -> %d\n",
633  filter2Size, filterSize);
634  /* try to reduce the filter-size (step2 reduce it) */
635  for (i = 0; i < dstW; i++) {
636  int j;
637 
638  for (j = 0; j < filterSize; j++) {
639  if (j >= filter2Size)
640  filter[i * filterSize + j] = 0;
641  else
642  filter[i * filterSize + j] = filter2[i * filter2Size + j];
643  if ((flags & SWS_BITEXACT) && j >= minFilterSize)
644  filter[i * filterSize + j] = 0;
645  }
646  }
647 
648  // FIXME try to align filterPos if possible
649 
650  // fix borders
651  for (i = 0; i < dstW; i++) {
652  int j;
653  if ((*filterPos)[i] < 0) {
654  // move filter coefficients left to compensate for filterPos
655  for (j = 1; j < filterSize; j++) {
656  int left = FFMAX(j + (*filterPos)[i], 0);
657  filter[i * filterSize + left] += filter[i * filterSize + j];
658  filter[i * filterSize + j] = 0;
659  }
660  (*filterPos)[i]= 0;
661  }
662 
663  if ((*filterPos)[i] + filterSize > srcW) {
664  int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
665  int64_t acc = 0;
666 
667  for (j = filterSize - 1; j >= 0; j--) {
668  if ((*filterPos)[i] + j >= srcW) {
669  acc += filter[i * filterSize + j];
670  filter[i * filterSize + j] = 0;
671  }
672  }
673  for (j = filterSize - 1; j >= 0; j--) {
674  if (j < shift) {
675  filter[i * filterSize + j] = 0;
676  } else {
677  filter[i * filterSize + j] = filter[i * filterSize + j - shift];
678  }
679  }
680 
681  (*filterPos)[i]-= shift;
682  filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
683  }
684  av_assert0((*filterPos)[i] >= 0);
685  av_assert0((*filterPos)[i] < srcW);
686  if ((*filterPos)[i] + filterSize > srcW) {
687  for (j = 0; j < filterSize; j++) {
688  av_assert0((*filterPos)[i] + j < srcW || !filter[i * filterSize + j]);
689  }
690  }
691  }
692 
693  // Note the +1 is for the MMX scaler which reads over the end
694  /* align at 16 for AltiVec (needed by hScale_altivec_real) */
695  *outFilter = av_calloc(dstW + 3, *outFilterSize * sizeof(**outFilter));
696  if (!*outFilter)
697  goto nomem;
698 
699  /* normalize & store in outFilter */
700  for (i = 0; i < dstW; i++) {
701  int j;
702  int64_t error = 0;
703  int64_t sum = 0;
704 
705  for (j = 0; j < filterSize; j++) {
706  sum += filter[i * filterSize + j];
707  }
708  sum = (sum + one / 2) / one;
709  if (!sum) {
710  av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
711  sum = 1;
712  }
713  for (j = 0; j < *outFilterSize; j++) {
714  int64_t v = filter[i * filterSize + j] + error;
715  int intV = ROUNDED_DIV(v, sum);
716  (*outFilter)[i * (*outFilterSize) + j] = intV;
717  error = v - intV * sum;
718  }
719  }
720 
721  (*filterPos)[dstW + 0] =
722  (*filterPos)[dstW + 1] =
723  (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
724  * read over the end */
725  for (i = 0; i < *outFilterSize; i++) {
726  int k = (dstW - 1) * (*outFilterSize) + i;
727  (*outFilter)[k + 1 * (*outFilterSize)] =
728  (*outFilter)[k + 2 * (*outFilterSize)] =
729  (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
730  }
731 
732  ret = 0;
733  goto done;
734 nomem:
735  ret = AVERROR(ENOMEM);
736 fail:
737  if(ret < 0)
738  av_log(NULL, ret == RETCODE_USE_CASCADE ? AV_LOG_DEBUG : AV_LOG_ERROR, "sws: initFilter failed\n");
739 done:
740  av_free(filter);
741  av_free(filter2);
742  return ret;
743 }
744 
745 static void fill_rgb2yuv_table(SwsContext *c, const int table[4], int dstRange)
746 {
747  int64_t W, V, Z, Cy, Cu, Cv;
748  int64_t vr = table[0];
749  int64_t ub = table[1];
750  int64_t ug = -table[2];
751  int64_t vg = -table[3];
752  int64_t ONE = 65536;
753  int64_t cy = ONE;
754  uint8_t *p = (uint8_t*)c->input_rgb2yuv_table;
755  int i;
756  static const int8_t map[] = {
757  BY_IDX, GY_IDX, -1 , BY_IDX, BY_IDX, GY_IDX, -1 , BY_IDX,
758  RY_IDX, -1 , GY_IDX, RY_IDX, RY_IDX, -1 , GY_IDX, RY_IDX,
759  RY_IDX, GY_IDX, -1 , RY_IDX, RY_IDX, GY_IDX, -1 , RY_IDX,
760  BY_IDX, -1 , GY_IDX, BY_IDX, BY_IDX, -1 , GY_IDX, BY_IDX,
761  BU_IDX, GU_IDX, -1 , BU_IDX, BU_IDX, GU_IDX, -1 , BU_IDX,
762  RU_IDX, -1 , GU_IDX, RU_IDX, RU_IDX, -1 , GU_IDX, RU_IDX,
763  RU_IDX, GU_IDX, -1 , RU_IDX, RU_IDX, GU_IDX, -1 , RU_IDX,
764  BU_IDX, -1 , GU_IDX, BU_IDX, BU_IDX, -1 , GU_IDX, BU_IDX,
765  BV_IDX, GV_IDX, -1 , BV_IDX, BV_IDX, GV_IDX, -1 , BV_IDX,
766  RV_IDX, -1 , GV_IDX, RV_IDX, RV_IDX, -1 , GV_IDX, RV_IDX,
767  RV_IDX, GV_IDX, -1 , RV_IDX, RV_IDX, GV_IDX, -1 , RV_IDX,
768  BV_IDX, -1 , GV_IDX, BV_IDX, BV_IDX, -1 , GV_IDX, BV_IDX,
769  RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX,
770  BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX,
771  GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 ,
772  -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX,
773  RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX,
774  BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX,
775  GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 ,
776  -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX,
777  RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX,
778  BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX,
779  GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 ,
780  -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, //23
781  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //24
782  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //25
783  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //26
784  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //27
785  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //28
786  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //29
787  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //30
788  -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //31
789  BY_IDX, GY_IDX, RY_IDX, -1 , -1 , -1 , -1 , -1 , //32
790  BU_IDX, GU_IDX, RU_IDX, -1 , -1 , -1 , -1 , -1 , //33
791  BV_IDX, GV_IDX, RV_IDX, -1 , -1 , -1 , -1 , -1 , //34
792  };
793 
794  dstRange = 0; //FIXME range = 1 is handled elsewhere
795 
796  if (!dstRange) {
797  cy = cy * 255 / 219;
798  } else {
799  vr = vr * 224 / 255;
800  ub = ub * 224 / 255;
801  ug = ug * 224 / 255;
802  vg = vg * 224 / 255;
803  }
804  W = ROUNDED_DIV(ONE*ONE*ug, ub);
805  V = ROUNDED_DIV(ONE*ONE*vg, vr);
806  Z = ONE*ONE-W-V;
807 
808  Cy = ROUNDED_DIV(cy*Z, ONE);
809  Cu = ROUNDED_DIV(ub*Z, ONE);
810  Cv = ROUNDED_DIV(vr*Z, ONE);
811 
812  c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
813  c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
814  c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
815 
816  c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
817  c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
818  c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
819 
820  c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
821  c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
822  c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
823 
824  if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
825  c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
826  c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
827  c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
828  c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
829  c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
830  c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
831  c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
832  c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
833  c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
834  }
835  for(i=0; i<FF_ARRAY_ELEMS(map); i++)
836  AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
837 }
838 
839 static void fill_xyztables(struct SwsContext *c)
840 {
841  int i;
842  double xyzgamma = XYZ_GAMMA;
843  double rgbgamma = 1.0 / RGB_GAMMA;
844  double xyzgammainv = 1.0 / XYZ_GAMMA;
845  double rgbgammainv = RGB_GAMMA;
846  static const int16_t xyz2rgb_matrix[3][4] = {
847  {13270, -6295, -2041},
848  {-3969, 7682, 170},
849  { 228, -835, 4329} };
850  static const int16_t rgb2xyz_matrix[3][4] = {
851  {1689, 1464, 739},
852  { 871, 2929, 296},
853  { 79, 488, 3891} };
854  static int16_t xyzgamma_tab[4096], rgbgamma_tab[4096], xyzgammainv_tab[4096], rgbgammainv_tab[4096];
855 
856  memcpy(c->xyz2rgb_matrix, xyz2rgb_matrix, sizeof(c->xyz2rgb_matrix));
857  memcpy(c->rgb2xyz_matrix, rgb2xyz_matrix, sizeof(c->rgb2xyz_matrix));
858  c->xyzgamma = xyzgamma_tab;
859  c->rgbgamma = rgbgamma_tab;
860  c->xyzgammainv = xyzgammainv_tab;
861  c->rgbgammainv = rgbgammainv_tab;
862 
863  if (rgbgamma_tab[4095])
864  return;
865 
866  /* set gamma vectors */
867  for (i = 0; i < 4096; i++) {
868  xyzgamma_tab[i] = lrint(pow(i / 4095.0, xyzgamma) * 4095.0);
869  rgbgamma_tab[i] = lrint(pow(i / 4095.0, rgbgamma) * 4095.0);
870  xyzgammainv_tab[i] = lrint(pow(i / 4095.0, xyzgammainv) * 4095.0);
871  rgbgammainv_tab[i] = lrint(pow(i / 4095.0, rgbgammainv) * 4095.0);
872  }
873 }
874 
875 static int range_override_needed(enum AVPixelFormat format)
876 {
877  return !isYUV(format) && !isGray(format);
878 }
879 
880 int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
881  int srcRange, const int table[4], int dstRange,
882  int brightness, int contrast, int saturation)
883 {
884  const AVPixFmtDescriptor *desc_dst;
885  const AVPixFmtDescriptor *desc_src;
886  int need_reinit = 0;
887 
888  handle_formats(c);
889  desc_dst = av_pix_fmt_desc_get(c->dstFormat);
890  desc_src = av_pix_fmt_desc_get(c->srcFormat);
891 
892  if(range_override_needed(c->dstFormat))
893  dstRange = 0;
894  if(range_override_needed(c->srcFormat))
895  srcRange = 0;
896 
897  if (c->srcRange != srcRange ||
898  c->dstRange != dstRange ||
899  c->brightness != brightness ||
900  c->contrast != contrast ||
901  c->saturation != saturation ||
902  memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
903  memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
904  )
905  need_reinit = 1;
906 
907  memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
908  memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
909 
910 
911 
912  c->brightness = brightness;
913  c->contrast = contrast;
914  c->saturation = saturation;
915  c->srcRange = srcRange;
916  c->dstRange = dstRange;
917 
918  //The srcBpc check is possibly wrong but we seem to lack a definitive reference to test this
919  //and what we have in ticket 2939 looks better with this check
920  if (need_reinit && (c->srcBpc == 8 || !isYUV(c->srcFormat)))
921  ff_sws_init_range_convert(c);
922 
923  c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
924  c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
925 
926  if (c->cascaded_context[c->cascaded_mainindex])
927  return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
928 
929  if (!need_reinit)
930  return 0;
931 
932  if ((isYUV(c->dstFormat) || isGray(c->dstFormat)) && (isYUV(c->srcFormat) || isGray(c->srcFormat))) {
933  if (!c->cascaded_context[0] &&
934  memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
935  c->srcW && c->srcH && c->dstW && c->dstH) {
936  enum AVPixelFormat tmp_format;
937  int tmp_width, tmp_height;
938  int srcW = c->srcW;
939  int srcH = c->srcH;
940  int dstW = c->dstW;
941  int dstH = c->dstH;
942  int ret;
943  av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
944 
945  if (isNBPS(c->dstFormat) || is16BPS(c->dstFormat)) {
946  if (isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) {
947  tmp_format = AV_PIX_FMT_BGRA64;
948  } else {
949  tmp_format = AV_PIX_FMT_BGR48;
950  }
951  } else {
952  if (isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) {
953  tmp_format = AV_PIX_FMT_BGRA;
954  } else {
955  tmp_format = AV_PIX_FMT_BGR24;
956  }
957  }
958 
959  if (srcW*srcH > dstW*dstH) {
960  tmp_width = dstW;
961  tmp_height = dstH;
962  } else {
963  tmp_width = srcW;
964  tmp_height = srcH;
965  }
966 
967  ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
968  tmp_width, tmp_height, tmp_format, 64);
969  if (ret < 0)
970  return ret;
971 
972  c->cascaded_context[0] = sws_alloc_set_opts(srcW, srcH, c->srcFormat,
973  tmp_width, tmp_height, tmp_format,
974  c->flags, c->param);
975  if (!c->cascaded_context[0])
976  return -1;
977 
978  c->cascaded_context[0]->alphablend = c->alphablend;
979  ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
980  if (ret < 0)
981  return ret;
982  //we set both src and dst depending on that the RGB side will be ignored
983  sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
984  srcRange, table, dstRange,
985  brightness, contrast, saturation);
986 
987  c->cascaded_context[1] = sws_getContext(tmp_width, tmp_height, tmp_format,
988  dstW, dstH, c->dstFormat,
989  c->flags, NULL, NULL, c->param);
990  if (!c->cascaded_context[1])
991  return -1;
992  sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
993  srcRange, table, dstRange,
994  0, 1 << 16, 1 << 16);
995  return 0;
996  }
997  return -1;
998  }
999 
1000  if (!isYUV(c->dstFormat) && !isGray(c->dstFormat)) {
1001  ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
1002  contrast, saturation);
1003  // FIXME factorize
1004 
1005  if (ARCH_PPC)
1006  ff_yuv2rgb_init_tables_ppc(c, inv_table, brightness,
1007  contrast, saturation);
1008  }
1009 
1010  fill_rgb2yuv_table(c, table, dstRange);
1011 
1012  return 0;
1013 }
1014 
1015 int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table,
1016  int *srcRange, int **table, int *dstRange,
1017  int *brightness, int *contrast, int *saturation)
1018 {
1019  if (!c )
1020  return -1;
1021 
1022  *inv_table = c->srcColorspaceTable;
1023  *table = c->dstColorspaceTable;
1024  *srcRange = range_override_needed(c->srcFormat) ? 1 : c->srcRange;
1025  *dstRange = range_override_needed(c->dstFormat) ? 1 : c->dstRange;
1026  *brightness = c->brightness;
1027  *contrast = c->contrast;
1028  *saturation = c->saturation;
1029 
1030  return 0;
1031 }
1032 
1033 static int handle_jpeg(enum AVPixelFormat *format)
1034 {
1035  switch (*format) {
1036  case AV_PIX_FMT_YUVJ420P:
1037  *format = AV_PIX_FMT_YUV420P;
1038  return 1;
1039  case AV_PIX_FMT_YUVJ411P:
1040  *format = AV_PIX_FMT_YUV411P;
1041  return 1;
1042  case AV_PIX_FMT_YUVJ422P:
1043  *format = AV_PIX_FMT_YUV422P;
1044  return 1;
1045  case AV_PIX_FMT_YUVJ444P:
1046  *format = AV_PIX_FMT_YUV444P;
1047  return 1;
1048  case AV_PIX_FMT_YUVJ440P:
1049  *format = AV_PIX_FMT_YUV440P;
1050  return 1;
1051  case AV_PIX_FMT_GRAY8:
1052  case AV_PIX_FMT_YA8:
1053  case AV_PIX_FMT_GRAY9LE:
1054  case AV_PIX_FMT_GRAY9BE:
1055  case AV_PIX_FMT_GRAY10LE:
1056  case AV_PIX_FMT_GRAY10BE:
1057  case AV_PIX_FMT_GRAY12LE:
1058  case AV_PIX_FMT_GRAY12BE:
1059  case AV_PIX_FMT_GRAY14LE:
1060  case AV_PIX_FMT_GRAY14BE:
1061  case AV_PIX_FMT_GRAY16LE:
1062  case AV_PIX_FMT_GRAY16BE:
1063  case AV_PIX_FMT_YA16BE:
1064  case AV_PIX_FMT_YA16LE:
1065  return 1;
1066  default:
1067  return 0;
1068  }
1069 }
1070 
1071 static int handle_0alpha(enum AVPixelFormat *format)
1072 {
1073  switch (*format) {
1074  case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
1075  case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
1076  case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
1077  case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
1078  default: return 0;
1079  }
1080 }
1081 
1082 static int handle_xyz(enum AVPixelFormat *format)
1083 {
1084  switch (*format) {
1085  case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
1086  case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
1087  default: return 0;
1088  }
1089 }
1090 
1091 static void handle_formats(SwsContext *c)
1092 {
1093  c->src0Alpha |= handle_0alpha(&c->srcFormat);
1094  c->dst0Alpha |= handle_0alpha(&c->dstFormat);
1095  c->srcXYZ |= handle_xyz(&c->srcFormat);
1096  c->dstXYZ |= handle_xyz(&c->dstFormat);
1097  if (c->srcXYZ || c->dstXYZ)
1098  fill_xyztables(c);
1099 }
1100 
1101 SwsContext *sws_alloc_context(void)
1102 {
1103  SwsContext *c = av_mallocz(sizeof(SwsContext));
1104 
1105  av_assert0(offsetof(SwsContext, redDither) + DITHER32_INT == offsetof(SwsContext, dither32));
1106 
1107  if (c) {
1108  c->av_class = &ff_sws_context_class;
1109  av_opt_set_defaults(c);
1110  }
1111 
1112  return c;
1113 }
1114 
1115 static uint16_t * alloc_gamma_tbl(double e)
1116 {
1117  int i = 0;
1118  uint16_t * tbl;
1119  tbl = (uint16_t*)av_malloc(sizeof(uint16_t) * 1 << 16);
1120  if (!tbl)
1121  return NULL;
1122 
1123  for (i = 0; i < 65536; ++i) {
1124  tbl[i] = pow(i / 65535.0, e) * 65535.0;
1125  }
1126  return tbl;
1127 }
1128 
1129 static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1130 {
1131  switch(fmt) {
1132  case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1133  case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1134  case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1135  case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1136  case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1137 
1138  case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1139  case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1140  case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1141 
1142  case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1143 
1144  case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1145  case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1146 
1147  case AV_PIX_FMT_GBRAP12LE: return AV_PIX_FMT_GBRP12;
1148  case AV_PIX_FMT_GBRAP12BE: return AV_PIX_FMT_GBRP12;
1149 
1150  case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1151  case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1152 
1153  case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1154  case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1155  case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1156  case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1157 
1158  case AV_PIX_FMT_YA16BE: return AV_PIX_FMT_GRAY16;
1159  case AV_PIX_FMT_YA16LE: return AV_PIX_FMT_GRAY16;
1160 
1161  case AV_PIX_FMT_YUVA420P9BE: return AV_PIX_FMT_YUV420P9;
1162  case AV_PIX_FMT_YUVA422P9BE: return AV_PIX_FMT_YUV422P9;
1163  case AV_PIX_FMT_YUVA444P9BE: return AV_PIX_FMT_YUV444P9;
1164  case AV_PIX_FMT_YUVA420P9LE: return AV_PIX_FMT_YUV420P9;
1165  case AV_PIX_FMT_YUVA422P9LE: return AV_PIX_FMT_YUV422P9;
1166  case AV_PIX_FMT_YUVA444P9LE: return AV_PIX_FMT_YUV444P9;
1167  case AV_PIX_FMT_YUVA420P10BE: return AV_PIX_FMT_YUV420P10;
1168  case AV_PIX_FMT_YUVA422P10BE: return AV_PIX_FMT_YUV422P10;
1169  case AV_PIX_FMT_YUVA444P10BE: return AV_PIX_FMT_YUV444P10;
1170  case AV_PIX_FMT_YUVA420P10LE: return AV_PIX_FMT_YUV420P10;
1171  case AV_PIX_FMT_YUVA422P10LE: return AV_PIX_FMT_YUV422P10;
1172  case AV_PIX_FMT_YUVA444P10LE: return AV_PIX_FMT_YUV444P10;
1173  case AV_PIX_FMT_YUVA420P16BE: return AV_PIX_FMT_YUV420P16;
1174  case AV_PIX_FMT_YUVA422P16BE: return AV_PIX_FMT_YUV422P16;
1175  case AV_PIX_FMT_YUVA444P16BE: return AV_PIX_FMT_YUV444P16;
1176  case AV_PIX_FMT_YUVA420P16LE: return AV_PIX_FMT_YUV420P16;
1177  case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1178  case AV_PIX_FMT_YUVA444P16LE: return AV_PIX_FMT_YUV444P16;
1179 
1180 // case AV_PIX_FMT_AYUV64LE:
1181 // case AV_PIX_FMT_AYUV64BE:
1182 // case AV_PIX_FMT_PAL8:
1183  default: return AV_PIX_FMT_NONE;
1184  }
1185 }
1186 
1187 av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
1188  SwsFilter *dstFilter)
1189 {
1190  int i;
1191  int usesVFilter, usesHFilter;
1192  int unscaled;
1193  SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1194  int srcW = c->srcW;
1195  int srcH = c->srcH;
1196  int dstW = c->dstW;
1197  int dstH = c->dstH;
1198  int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 66, 16);
1199  int flags, cpu_flags;
1200  enum AVPixelFormat srcFormat = c->srcFormat;
1201  enum AVPixelFormat dstFormat = c->dstFormat;
1202  const AVPixFmtDescriptor *desc_src;
1203  const AVPixFmtDescriptor *desc_dst;
1204  int ret = 0;
1205  enum AVPixelFormat tmpFmt;
1206  static const float float_mult = 1.0f / 255.0f;
1207 
1208  cpu_flags = av_get_cpu_flags();
1209  flags = c->flags;
1210  emms_c();
1211  if (!rgb15to16)
1212  ff_sws_rgb2rgb_init();
1213 
1214  unscaled = (srcW == dstW && srcH == dstH);
1215 
1216  c->srcRange |= handle_jpeg(&c->srcFormat);
1217  c->dstRange |= handle_jpeg(&c->dstFormat);
1218 
1219  if(srcFormat!=c->srcFormat || dstFormat!=c->dstFormat)
1220  av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
1221 
1222  if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1223  sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], c->srcRange,
1224  ff_yuv2rgb_coeffs[SWS_CS_DEFAULT],
1225  c->dstRange, 0, 1 << 16, 1 << 16);
1226 
1227  handle_formats(c);
1228  srcFormat = c->srcFormat;
1229  dstFormat = c->dstFormat;
1230  desc_src = av_pix_fmt_desc_get(srcFormat);
1231  desc_dst = av_pix_fmt_desc_get(dstFormat);
1232 
1233  // If the source has no alpha then disable alpha blendaway
1234  if (c->src0Alpha)
1235  c->alphablend = SWS_ALPHA_BLEND_NONE;
1236 
1237  if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1238  av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1239  if (!sws_isSupportedInput(srcFormat)) {
1240  av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
1241  av_get_pix_fmt_name(srcFormat));
1242  return AVERROR(EINVAL);
1243  }
1244  if (!sws_isSupportedOutput(dstFormat)) {
1245  av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n",
1246  av_get_pix_fmt_name(dstFormat));
1247  return AVERROR(EINVAL);
1248  }
1249  }
1250  av_assert2(desc_src && desc_dst);
1251 
1252  i = flags & (SWS_POINT |
1253  SWS_AREA |
1254  SWS_BILINEAR |
1255  SWS_FAST_BILINEAR |
1256  SWS_BICUBIC |
1257  SWS_X |
1258  SWS_GAUSS |
1259  SWS_LANCZOS |
1260  SWS_SINC |
1261  SWS_SPLINE |
1262  SWS_BICUBLIN);
1263 
1264  /* provide a default scaler if not set by caller */
1265  if (!i) {
1266  if (dstW < srcW && dstH < srcH)
1267  flags |= SWS_BICUBIC;
1268  else if (dstW > srcW && dstH > srcH)
1269  flags |= SWS_BICUBIC;
1270  else
1271  flags |= SWS_BICUBIC;
1272  c->flags = flags;
1273  } else if (i & (i - 1)) {
1274  av_log(c, AV_LOG_ERROR,
1275  "Exactly one scaler algorithm must be chosen, got %X\n", i);
1276  return AVERROR(EINVAL);
1277  }
1278  /* sanity check */
1279  if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1280  /* FIXME check if these are enough and try to lower them after
1281  * fixing the relevant parts of the code */
1282  av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1283  srcW, srcH, dstW, dstH);
1284  return AVERROR(EINVAL);
1285  }
1286  if (flags & SWS_FAST_BILINEAR) {
1287  if (srcW < 8 || dstW < 8) {
1288  flags ^= SWS_FAST_BILINEAR | SWS_BILINEAR;
1289  c->flags = flags;
1290  }
1291  }
1292 
1293  if (!dstFilter)
1294  dstFilter = &dummyFilter;
1295  if (!srcFilter)
1296  srcFilter = &dummyFilter;
1297 
1298  int64_t lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1299  int64_t lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1300  c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1301  c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1302  c->vRounder = 4 * 0x0001000100010001ULL;
1303 
1304  usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1305  (srcFilter->chrV && srcFilter->chrV->length > 1) ||
1306  (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1307  (dstFilter->chrV && dstFilter->chrV->length > 1);
1308  usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1309  (srcFilter->chrH && srcFilter->chrH->length > 1) ||
1310  (dstFilter->lumH && dstFilter->lumH->length > 1) ||
1311  (dstFilter->chrH && dstFilter->chrH->length > 1);
1312 
1313  av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1314  av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1315 
1316  if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
1317  if (dstW&1) {
1318  av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1319  flags |= SWS_FULL_CHR_H_INT;
1320  c->flags = flags;
1321  }
1322 
1323  if ( c->chrSrcHSubSample == 0
1324  && c->chrSrcVSubSample == 0
1325  && c->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
1326  && !(c->flags & SWS_FAST_BILINEAR)
1327  ) {
1328  av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1329  flags |= SWS_FULL_CHR_H_INT;
1330  c->flags = flags;
1331  }
1332  }
1333 
1334  if (c->dither == SWS_DITHER_AUTO) {
1335  if (flags & SWS_ERROR_DIFFUSION)
1336  c->dither = SWS_DITHER_ED;
1337  }
1338 
1339  if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
1340  dstFormat == AV_PIX_FMT_RGB4_BYTE ||
1341  dstFormat == AV_PIX_FMT_BGR8 ||
1342  dstFormat == AV_PIX_FMT_RGB8) {
1343  if (c->dither == SWS_DITHER_AUTO)
1344  c->dither = (flags & SWS_FULL_CHR_H_INT) ? SWS_DITHER_ED : SWS_DITHER_BAYER;
1345  if (!(flags & SWS_FULL_CHR_H_INT)) {
1346  if (c->dither == SWS_DITHER_ED || c->dither == SWS_DITHER_A_DITHER || c->dither == SWS_DITHER_X_DITHER) {
1347  av_log(c, AV_LOG_DEBUG,
1348  "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1349  av_get_pix_fmt_name(dstFormat));
1350  flags |= SWS_FULL_CHR_H_INT;
1351  c->flags = flags;
1352  }
1353  }
1354  if (flags & SWS_FULL_CHR_H_INT) {
1355  if (c->dither == SWS_DITHER_BAYER) {
1356  av_log(c, AV_LOG_DEBUG,
1357  "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1358  av_get_pix_fmt_name(dstFormat));
1359  c->dither = SWS_DITHER_ED;
1360  }
1361  }
1362  }
1363  if (isPlanarRGB(dstFormat)) {
1364  if (!(flags & SWS_FULL_CHR_H_INT)) {
1365  av_log(c, AV_LOG_DEBUG,
1366  "%s output is not supported with half chroma resolution, switching to full\n",
1367  av_get_pix_fmt_name(dstFormat));
1368  flags |= SWS_FULL_CHR_H_INT;
1369  c->flags = flags;
1370  }
1371  }
1372 
1373  /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1374  * chroma interpolation */
1375  if (flags & SWS_FULL_CHR_H_INT &&
1376  isAnyRGB(dstFormat) &&
1377  !isPlanarRGB(dstFormat) &&
1378  dstFormat != AV_PIX_FMT_RGBA64LE &&
1379  dstFormat != AV_PIX_FMT_RGBA64BE &&
1380  dstFormat != AV_PIX_FMT_BGRA64LE &&
1381  dstFormat != AV_PIX_FMT_BGRA64BE &&
1382  dstFormat != AV_PIX_FMT_RGB48LE &&
1383  dstFormat != AV_PIX_FMT_RGB48BE &&
1384  dstFormat != AV_PIX_FMT_BGR48LE &&
1385  dstFormat != AV_PIX_FMT_BGR48BE &&
1386  dstFormat != AV_PIX_FMT_RGBA &&
1387  dstFormat != AV_PIX_FMT_ARGB &&
1388  dstFormat != AV_PIX_FMT_BGRA &&
1389  dstFormat != AV_PIX_FMT_ABGR &&
1390  dstFormat != AV_PIX_FMT_RGB24 &&
1391  dstFormat != AV_PIX_FMT_BGR24 &&
1392  dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1393  dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1394  dstFormat != AV_PIX_FMT_BGR8 &&
1395  dstFormat != AV_PIX_FMT_RGB8
1396  ) {
1397  av_log(c, AV_LOG_WARNING,
1398  "full chroma interpolation for destination format '%s' not yet implemented\n",
1399  av_get_pix_fmt_name(dstFormat));
1400  flags &= ~SWS_FULL_CHR_H_INT;
1401  c->flags = flags;
1402  }
1403  if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1404  c->chrDstHSubSample = 1;
1405 
1406  // drop some chroma lines if the user wants it
1407  c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1408  SWS_SRC_V_CHR_DROP_SHIFT;
1409  c->chrSrcVSubSample += c->vChrDrop;
1410 
1411  /* drop every other pixel for chroma calculation unless user
1412  * wants full chroma */
1413  if (isAnyRGB(srcFormat) && !(flags & SWS_FULL_CHR_H_INP) &&
1414  srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1415  srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1416  srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1417  srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1418  srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1419  srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1420  srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1421  srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1422  srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1423  srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1424  srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1425  srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1426  srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1427  ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1428  (flags & SWS_FAST_BILINEAR)))
1429  c->chrSrcHSubSample = 1;
1430 
1431  // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1432  c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1433  c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1434  c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1435  c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1436 
1437  if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1438  goto nomem;
1439 
1440  c->srcBpc = desc_src->comp[0].depth;
1441  if (c->srcBpc < 8)
1442  c->srcBpc = 8;
1443  c->dstBpc = desc_dst->comp[0].depth;
1444  if (c->dstBpc < 8)
1445  c->dstBpc = 8;
1446  if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1447  c->srcBpc = 16;
1448  if (c->dstBpc == 16)
1449  dst_stride <<= 1;
1450 
1451  if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1452  c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1453  c->chrDstW >= c->chrSrcW &&
1454  (srcW & 15) == 0;
1455  if (!c->canMMXEXTBeUsed && dstW >= srcW && c->chrDstW >= c->chrSrcW && (srcW & 15) == 0
1456 
1457  && (flags & SWS_FAST_BILINEAR)) {
1458  if (flags & SWS_PRINT_INFO)
1459  av_log(c, AV_LOG_INFO,
1460  "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1461  }
1462  if (usesHFilter || isNBPS(c->srcFormat) || is16BPS(c->srcFormat) || isAnyRGB(c->srcFormat))
1463  c->canMMXEXTBeUsed = 0;
1464  } else
1465  c->canMMXEXTBeUsed = 0;
1466 
1467  int64_t chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1468  int64_t chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1469 
1470  /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1471  * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1472  * correct scaling.
1473  * n-2 is the last chrominance sample available.
1474  * This is not perfect, but no one should notice the difference, the more
1475  * correct variant would be like the vertical one, but that would require
1476  * some special code for the first and last pixel */
1477  if (flags & SWS_FAST_BILINEAR) {
1478  if (c->canMMXEXTBeUsed) {
1479  lumXInc += 20;
1480  chrXInc += 20;
1481  }
1482  // we don't use the x86 asm scaler if MMX is available
1483  else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1484  lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1485  chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1486  }
1487  }
1488  if (chrXInc < 10 || chrXInc > INT_MAX ||
1489  chrYInc < 10 || chrYInc > INT_MAX ||
1490  lumXInc < 10 || lumXInc > INT_MAX ||
1491  lumYInc < 10 || lumYInc > INT_MAX)
1492  return AVERROR_PATCHWELCOME;
1493 
1494  c->lumXInc = lumXInc;
1495  c->lumYInc = lumYInc;
1496  c->chrXInc = chrXInc;
1497  c->chrYInc = chrYInc;
1498 
1499 
1500  // hardcoded for now
1501  c->gamma_value = 2.2;
1502  tmpFmt = AV_PIX_FMT_RGBA64LE;
1503 
1504 
1505  if (!unscaled && c->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1506  SwsContext *c2;
1507  c->cascaded_context[0] = NULL;
1508 
1509  ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1510  srcW, srcH, tmpFmt, 64);
1511  if (ret < 0)
1512  return ret;
1513 
1514  c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1515  srcW, srcH, tmpFmt,
1516  flags, NULL, NULL, c->param);
1517  if (!c->cascaded_context[0]) {
1518  return AVERROR(ENOMEM);
1519  }
1520 
1521  c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1522  dstW, dstH, tmpFmt,
1523  flags, srcFilter, dstFilter, c->param);
1524 
1525  if (!c->cascaded_context[1])
1526  return AVERROR(ENOMEM);
1527 
1528  c2 = c->cascaded_context[1];
1529  c2->is_internal_gamma = 1;
1530  c2->gamma = alloc_gamma_tbl( c->gamma_value);
1531  c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1532  if (!c2->gamma || !c2->inv_gamma)
1533  return AVERROR(ENOMEM);
1534 
1535  // is_internal_flag is set after creating the context
1536  // to properly create the gamma convert FilterDescriptor
1537  // we have to re-initialize it
1538  ff_free_filters(c2);
1539  if ((ret = ff_init_filters(c2)) < 0) {
1540  sws_freeContext(c2);
1541  c->cascaded_context[1] = NULL;
1542  return ret;
1543  }
1544 
1545  c->cascaded_context[2] = NULL;
1546  if (dstFormat != tmpFmt) {
1547  ret = av_image_alloc(c->cascaded1_tmp, c->cascaded1_tmpStride,
1548  dstW, dstH, tmpFmt, 64);
1549  if (ret < 0)
1550  return ret;
1551 
1552  c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1553  dstW, dstH, dstFormat,
1554  flags, NULL, NULL, c->param);
1555  if (!c->cascaded_context[2])
1556  return AVERROR(ENOMEM);
1557  }
1558  return 0;
1559  }
1560 
1561  if (isBayer(srcFormat)) {
1562  if (!unscaled ||
1563  (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1564  dstFormat != AV_PIX_FMT_RGB48)) {
1565  enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1566 
1567  ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1568  srcW, srcH, tmpFormat, 64);
1569  if (ret < 0)
1570  return ret;
1571 
1572  c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1573  srcW, srcH, tmpFormat,
1574  flags, srcFilter, NULL, c->param);
1575  if (!c->cascaded_context[0])
1576  return AVERROR(ENOMEM);
1577 
1578  c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1579  dstW, dstH, dstFormat,
1580  flags, NULL, dstFilter, c->param);
1581  if (!c->cascaded_context[1])
1582  return AVERROR(ENOMEM);
1583  return 0;
1584  }
1585  }
1586 
1587  if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1588  for (i = 0; i < 256; ++i){
1589  c->uint2float_lut[i] = (float)i * float_mult;
1590  }
1591  }
1592 
1593  // float will be converted to uint16_t
1594  if ((srcFormat == AV_PIX_FMT_GRAYF32BE || srcFormat == AV_PIX_FMT_GRAYF32LE) &&
1595  (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1596  dstFormat != AV_PIX_FMT_GRAY8))){
1597  c->srcBpc = 16;
1598  }
1599 
1600  if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1601  enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1602 
1603  if (tmpFormat != AV_PIX_FMT_NONE && c->alphablend != SWS_ALPHA_BLEND_NONE) {
1604  if (!unscaled ||
1605  dstFormat != tmpFormat ||
1606  usesHFilter || usesVFilter ||
1607  c->srcRange != c->dstRange
1608  ) {
1609  c->cascaded_mainindex = 1;
1610  ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1611  srcW, srcH, tmpFormat, 64);
1612  if (ret < 0)
1613  return ret;
1614 
1615  c->cascaded_context[0] = sws_alloc_set_opts(srcW, srcH, srcFormat,
1616  srcW, srcH, tmpFormat,
1617  flags, c->param);
1618  if (!c->cascaded_context[0])
1619  return AVERROR(EINVAL);
1620  c->cascaded_context[0]->alphablend = c->alphablend;
1621  ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1622  if (ret < 0)
1623  return ret;
1624 
1625  c->cascaded_context[1] = sws_alloc_set_opts(srcW, srcH, tmpFormat,
1626  dstW, dstH, dstFormat,
1627  flags, c->param);
1628  if (!c->cascaded_context[1])
1629  return AVERROR(EINVAL);
1630 
1631  c->cascaded_context[1]->srcRange = c->srcRange;
1632  c->cascaded_context[1]->dstRange = c->dstRange;
1633  ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1634  if (ret < 0)
1635  return ret;
1636 
1637  return 0;
1638  }
1639  }
1640  }
1641 
1642 #if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
1643 #define USE_MMAP 1
1644 #else
1645 #define USE_MMAP 0
1646 #endif
1647 
1648  /* precalculate horizontal scaler filter coefficients */
1649  {
1650 #if HAVE_MMXEXT_INLINE
1651 // can't downscale !!!
1652  if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
1653  c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
1654  NULL, NULL, 8);
1655  c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
1656  NULL, NULL, NULL, 4);
1657 
1658 #if USE_MMAP
1659  c->lumMmxextFilterCode = mmap(NULL, c->lumMmxextFilterCodeSize,
1660  PROT_READ | PROT_WRITE,
1661  MAP_PRIVATE | MAP_ANONYMOUS,
1662  -1, 0);
1663  c->chrMmxextFilterCode = mmap(NULL, c->chrMmxextFilterCodeSize,
1664  PROT_READ | PROT_WRITE,
1665  MAP_PRIVATE | MAP_ANONYMOUS,
1666  -1, 0);
1667 #elif HAVE_VIRTUALALLOC
1668  c->lumMmxextFilterCode = VirtualAlloc(NULL,
1669  c->lumMmxextFilterCodeSize,
1670  MEM_COMMIT,
1671  PAGE_EXECUTE_READWRITE);
1672  c->chrMmxextFilterCode = VirtualAlloc(NULL,
1673  c->chrMmxextFilterCodeSize,
1674  MEM_COMMIT,
1675  PAGE_EXECUTE_READWRITE);
1676 #else
1677  c->lumMmxextFilterCode = av_malloc(c->lumMmxextFilterCodeSize);
1678  c->chrMmxextFilterCode = av_malloc(c->chrMmxextFilterCodeSize);
1679 #endif
1680 
1681 #ifdef MAP_ANONYMOUS
1682  if (c->lumMmxextFilterCode == MAP_FAILED || c->chrMmxextFilterCode == MAP_FAILED)
1683 #else
1684  if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode)
1685 #endif
1686  {
1687  av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1688  return AVERROR(ENOMEM);
1689  }
1690 
1691  if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1692  !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1693  !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1694  !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1695  goto nomem;
1696 
1697  ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1698  c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1699  ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1700  c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1701 
1702 #if USE_MMAP
1703  if ( mprotect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1
1704  || mprotect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1) {
1705  av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1706  ret = AVERROR(EINVAL);
1707  goto fail;
1708  }
1709 #endif
1710  } else
1711 #endif /* HAVE_MMXEXT_INLINE */
1712  {
1713  const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1714  PPC_ALTIVEC(cpu_flags) ? 8 :
1715  have_neon(cpu_flags) ? 8 : 1;
1716 
1717  if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1718  &c->hLumFilterSize, c->lumXInc,
1719  srcW, dstW, filterAlign, 1 << 14,
1720  (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1721  cpu_flags, srcFilter->lumH, dstFilter->lumH,
1722  c->param,
1723  get_local_pos(c, 0, 0, 0),
1724  get_local_pos(c, 0, 0, 0))) < 0)
1725  goto fail;
1726  if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1727  &c->hChrFilterSize, c->chrXInc,
1728  c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1729  (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1730  cpu_flags, srcFilter->chrH, dstFilter->chrH,
1731  c->param,
1732  get_local_pos(c, c->chrSrcHSubSample, c->src_h_chr_pos, 0),
1733  get_local_pos(c, c->chrDstHSubSample, c->dst_h_chr_pos, 0))) < 0)
1734  goto fail;
1735  }
1736  } // initialize horizontal stuff
1737 
1738  /* precalculate vertical scaler filter coefficients */
1739  {
1740  const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1741  PPC_ALTIVEC(cpu_flags) ? 8 :
1742  have_neon(cpu_flags) ? 2 : 1;
1743 
1744  ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1745  c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1746  (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1747  cpu_flags, srcFilter->lumV, dstFilter->lumV,
1748  c->param,
1749  get_local_pos(c, 0, 0, 1),
1750  get_local_pos(c, 0, 0, 1));
1751  int usecascade = (ret == RETCODE_USE_CASCADE);
1752  if (ret < 0 && !usecascade)
1753  goto fail;
1754  if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1755  c->chrYInc, c->chrSrcH, c->chrDstH,
1756  filterAlign, (1 << 12),
1757  (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1758  cpu_flags, srcFilter->chrV, dstFilter->chrV,
1759  c->param,
1760  get_local_pos(c, c->chrSrcVSubSample, c->src_v_chr_pos, 1),
1761  get_local_pos(c, c->chrDstVSubSample, c->dst_v_chr_pos, 1))) < 0)
1762 
1763  goto fail;
1764  if (usecascade) {
1765  ret = RETCODE_USE_CASCADE;
1766  goto fail;
1767  }
1768 
1769 #if HAVE_ALTIVEC
1770  c->vYCoeffsBank = av_malloc_array(c->dstH, c->vLumFilterSize * sizeof(*c->vYCoeffsBank));
1771  c->vCCoeffsBank = av_malloc_array(c->chrDstH, c->vChrFilterSize * sizeof(*c->vCCoeffsBank));
1772  if (c->vYCoeffsBank == NULL || c->vCCoeffsBank == NULL)
1773  goto nomem;
1774 
1775  for (i = 0; i < c->vLumFilterSize * c->dstH; i++) {
1776  int j;
1777  short *p = (short *)&c->vYCoeffsBank[i];
1778  for (j = 0; j < 8; j++)
1779  p[j] = c->vLumFilter[i];
1780  }
1781 
1782  for (i = 0; i < c->vChrFilterSize * c->chrDstH; i++) {
1783  int j;
1784  short *p = (short *)&c->vCCoeffsBank[i];
1785  for (j = 0; j < 8; j++)
1786  p[j] = c->vChrFilter[i];
1787  }
1788 #endif
1789  }
1790 
1791  for (i = 0; i < 4; i++)
1792  if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], c->dstW + 3))
1793  goto nomem;
1794 
1795  c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) ? 1 : 0;
1796 
1797  // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1798  c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1799  c->uv_offx2 = dst_stride + 16;
1800 
1801  av_assert0(c->chrDstH <= dstH);
1802 
1803  if (flags & SWS_PRINT_INFO) {
1804  const char *scaler = NULL, *cpucaps;
1805 
1806  for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1807  if (flags & scale_algorithms[i].flag) {
1808  scaler = scale_algorithms[i].description;
1809  break;
1810  }
1811  }
1812  if (!scaler)
1813  scaler = "ehh flags invalid?!";
1814  av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1815  scaler,
1816  av_get_pix_fmt_name(srcFormat),
1817 #ifdef DITHER1XBPP
1818  dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1819  dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1820  dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1821  "dithered " : "",
1822 #else
1823  "",
1824 #endif
1825  av_get_pix_fmt_name(dstFormat));
1826 
1827  if (INLINE_MMXEXT(cpu_flags))
1828  cpucaps = "MMXEXT";
1829  else if (INLINE_AMD3DNOW(cpu_flags))
1830  cpucaps = "3DNOW";
1831  else if (INLINE_MMX(cpu_flags))
1832  cpucaps = "MMX";
1833  else if (PPC_ALTIVEC(cpu_flags))
1834  cpucaps = "AltiVec";
1835  else
1836  cpucaps = "C";
1837 
1838  av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1839 
1840  av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1841  av_log(c, AV_LOG_DEBUG,
1842  "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1843  c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
1844  av_log(c, AV_LOG_DEBUG,
1845  "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1846  c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1847  c->chrXInc, c->chrYInc);
1848  }
1849 
1850  /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1851  if (unscaled && !usesHFilter && !usesVFilter &&
1852  c->alphablend != SWS_ALPHA_BLEND_NONE &&
1853  isALPHA(srcFormat) &&
1854  (c->srcRange == c->dstRange || isAnyRGB(dstFormat)) &&
1855  alphaless_fmt(srcFormat) == dstFormat
1856  ) {
1857  c->swscale = ff_sws_alphablendaway;
1858 
1859  if (flags & SWS_PRINT_INFO)
1860  av_log(c, AV_LOG_INFO,
1861  "using alpha blendaway %s -> %s special converter\n",
1862  av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1863  return 0;
1864  }
1865 
1866  /* unscaled special cases */
1867  if (unscaled && !usesHFilter && !usesVFilter &&
1868  (c->srcRange == c->dstRange || isAnyRGB(dstFormat) ||
1869  isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1870  ff_get_unscaled_swscale(c);
1871 
1872  if (c->swscale) {
1873  if (flags & SWS_PRINT_INFO)
1874  av_log(c, AV_LOG_INFO,
1875  "using unscaled %s -> %s special converter\n",
1876  av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1877  return 0;
1878  }
1879  }
1880 
1881  c->swscale = ff_getSwsFunc(c);
1882  return ff_init_filters(c);
1883 nomem:
1884  ret = AVERROR(ENOMEM);
1885 fail: // FIXME replace things by appropriate error codes
1886  if (ret == RETCODE_USE_CASCADE) {
1887  int tmpW = sqrt(srcW * (int64_t)dstW);
1888  int tmpH = sqrt(srcH * (int64_t)dstH);
1889  enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1890 
1891  if (isALPHA(srcFormat))
1892  tmpFormat = AV_PIX_FMT_YUVA420P;
1893 
1894  if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1895  return AVERROR(EINVAL);
1896 
1897  ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1898  tmpW, tmpH, tmpFormat, 64);
1899  if (ret < 0)
1900  return ret;
1901 
1902  c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1903  tmpW, tmpH, tmpFormat,
1904  flags, srcFilter, NULL, c->param);
1905  if (!c->cascaded_context[0])
1906  return AVERROR(ENOMEM);
1907 
1908  c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
1909  dstW, dstH, dstFormat,
1910  flags, NULL, dstFilter, c->param);
1911  if (!c->cascaded_context[1])
1912  return AVERROR(ENOMEM);
1913  return 0;
1914  }
1915  return ret;
1916 }
1917 
1918 SwsContext *sws_alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
1919  int dstW, int dstH, enum AVPixelFormat dstFormat,
1920  int flags, const double *param)
1921 {
1922  SwsContext *c;
1923 
1924  if (!(c = sws_alloc_context()))
1925  return NULL;
1926 
1927  c->flags = flags;
1928  c->srcW = srcW;
1929  c->srcH = srcH;
1930  c->dstW = dstW;
1931  c->dstH = dstH;
1932  c->srcFormat = srcFormat;
1933  c->dstFormat = dstFormat;
1934 
1935  if (param) {
1936  c->param[0] = param[0];
1937  c->param[1] = param[1];
1938  }
1939 
1940  return c;
1941 }
1942 
1943 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
1944  int dstW, int dstH, enum AVPixelFormat dstFormat,
1945  int flags, SwsFilter *srcFilter,
1946  SwsFilter *dstFilter, const double *param)
1947 {
1948  SwsContext *c;
1949 
1950  c = sws_alloc_set_opts(srcW, srcH, srcFormat,
1951  dstW, dstH, dstFormat,
1952  flags, param);
1953  if (!c)
1954  return NULL;
1955 
1956  if (sws_init_context(c, srcFilter, dstFilter) < 0) {
1957  sws_freeContext(c);
1958  return NULL;
1959  }
1960 
1961  return c;
1962 }
1963 
1964 static int isnan_vec(SwsVector *a)
1965 {
1966  int i;
1967  for (i=0; i<a->length; i++)
1968  if (isnan(a->coeff[i]))
1969  return 1;
1970  return 0;
1971 }
1972 
1973 static void makenan_vec(SwsVector *a)
1974 {
1975  int i;
1976  for (i=0; i<a->length; i++)
1977  a->coeff[i] = NAN;
1978 }
1979 
1980 SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
1981  float lumaSharpen, float chromaSharpen,
1982  float chromaHShift, float chromaVShift,
1983  int verbose)
1984 {
1985  SwsFilter *filter = av_malloc(sizeof(SwsFilter));
1986  if (!filter)
1987  return NULL;
1988 
1989  if (lumaGBlur != 0.0) {
1990  filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
1991  filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
1992  } else {
1993  filter->lumH = sws_getIdentityVec();
1994  filter->lumV = sws_getIdentityVec();
1995  }
1996 
1997  if (chromaGBlur != 0.0) {
1998  filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
1999  filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2000  } else {
2001  filter->chrH = sws_getIdentityVec();
2002  filter->chrV = sws_getIdentityVec();
2003  }
2004 
2005  if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2006  goto fail;
2007 
2008  if (chromaSharpen != 0.0) {
2009  SwsVector *id = sws_getIdentityVec();
2010  if (!id)
2011  goto fail;
2012  sws_scaleVec(filter->chrH, -chromaSharpen);
2013  sws_scaleVec(filter->chrV, -chromaSharpen);
2014  sws_addVec(filter->chrH, id);
2015  sws_addVec(filter->chrV, id);
2016  sws_freeVec(id);
2017  }
2018 
2019  if (lumaSharpen != 0.0) {
2020  SwsVector *id = sws_getIdentityVec();
2021  if (!id)
2022  goto fail;
2023  sws_scaleVec(filter->lumH, -lumaSharpen);
2024  sws_scaleVec(filter->lumV, -lumaSharpen);
2025  sws_addVec(filter->lumH, id);
2026  sws_addVec(filter->lumV, id);
2027  sws_freeVec(id);
2028  }
2029 
2030  if (chromaHShift != 0.0)
2031  sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2032 
2033  if (chromaVShift != 0.0)
2034  sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2035 
2036  sws_normalizeVec(filter->chrH, 1.0);
2037  sws_normalizeVec(filter->chrV, 1.0);
2038  sws_normalizeVec(filter->lumH, 1.0);
2039  sws_normalizeVec(filter->lumV, 1.0);
2040 
2041  if (isnan_vec(filter->chrH) ||
2042  isnan_vec(filter->chrV) ||
2043  isnan_vec(filter->lumH) ||
2044  isnan_vec(filter->lumV))
2045  goto fail;
2046 
2047  if (verbose)
2048  sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2049  if (verbose)
2050  sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2051 
2052  return filter;
2053 
2054 fail:
2055  sws_freeVec(filter->lumH);
2056  sws_freeVec(filter->lumV);
2057  sws_freeVec(filter->chrH);
2058  sws_freeVec(filter->chrV);
2059  av_freep(&filter);
2060  return NULL;
2061 }
2062 
2063 SwsVector *sws_allocVec(int length)
2064 {
2065  SwsVector *vec;
2066 
2067  if(length <= 0 || length > INT_MAX/ sizeof(double))
2068  return NULL;
2069 
2070  vec = av_malloc(sizeof(SwsVector));
2071  if (!vec)
2072  return NULL;
2073  vec->length = length;
2074  vec->coeff = av_malloc(sizeof(double) * length);
2075  if (!vec->coeff)
2076  av_freep(&vec);
2077  return vec;
2078 }
2079 
2080 SwsVector *sws_getGaussianVec(double variance, double quality)
2081 {
2082  const int length = (int)(variance * quality + 0.5) | 1;
2083  int i;
2084  double middle = (length - 1) * 0.5;
2085  SwsVector *vec;
2086 
2087  if(variance < 0 || quality < 0)
2088  return NULL;
2089 
2090  vec = sws_allocVec(length);
2091 
2092  if (!vec)
2093  return NULL;
2094 
2095  for (i = 0; i < length; i++) {
2096  double dist = i - middle;
2097  vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
2098  sqrt(2 * variance * M_PI);
2099  }
2100 
2101  sws_normalizeVec(vec, 1.0);
2102 
2103  return vec;
2104 }
2105 
2106 /**
2107  * Allocate and return a vector with length coefficients, all
2108  * with the same value c.
2109  */
2110 #if !FF_API_SWS_VECTOR
2111 static
2112 #endif
2113 SwsVector *sws_getConstVec(double c, int length)
2114 {
2115  int i;
2116  SwsVector *vec = sws_allocVec(length);
2117 
2118  if (!vec)
2119  return NULL;
2120 
2121  for (i = 0; i < length; i++)
2122  vec->coeff[i] = c;
2123 
2124  return vec;
2125 }
2126 
2127 /**
2128  * Allocate and return a vector with just one coefficient, with
2129  * value 1.0.
2130  */
2131 #if !FF_API_SWS_VECTOR
2132 static
2133 #endif
2134 SwsVector *sws_getIdentityVec(void)
2135 {
2136  return sws_getConstVec(1.0, 1);
2137 }
2138 
2139 static double sws_dcVec(SwsVector *a)
2140 {
2141  int i;
2142  double sum = 0;
2143 
2144  for (i = 0; i < a->length; i++)
2145  sum += a->coeff[i];
2146 
2147  return sum;
2148 }
2149 
2150 void sws_scaleVec(SwsVector *a, double scalar)
2151 {
2152  int i;
2153 
2154  for (i = 0; i < a->length; i++)
2155  a->coeff[i] *= scalar;
2156 }
2157 
2158 void sws_normalizeVec(SwsVector *a, double height)
2159 {
2160  sws_scaleVec(a, height / sws_dcVec(a));
2161 }
2162 
2163 #if FF_API_SWS_VECTOR
2164 static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b)
2165 {
2166  int length = a->length + b->length - 1;
2167  int i, j;
2168  SwsVector *vec = sws_getConstVec(0.0, length);
2169 
2170  if (!vec)
2171  return NULL;
2172 
2173  for (i = 0; i < a->length; i++) {
2174  for (j = 0; j < b->length; j++) {
2175  vec->coeff[i + j] += a->coeff[i] * b->coeff[j];
2176  }
2177  }
2178 
2179  return vec;
2180 }
2181 #endif
2182 
2183 static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2184 {
2185  int length = FFMAX(a->length, b->length);
2186  int i;
2187  SwsVector *vec = sws_getConstVec(0.0, length);
2188 
2189  if (!vec)
2190  return NULL;
2191 
2192  for (i = 0; i < a->length; i++)
2193  vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2194  for (i = 0; i < b->length; i++)
2195  vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2196 
2197  return vec;
2198 }
2199 
2200 #if FF_API_SWS_VECTOR
2201 static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b)
2202 {
2203  int length = FFMAX(a->length, b->length);
2204  int i;
2205  SwsVector *vec = sws_getConstVec(0.0, length);
2206 
2207  if (!vec)
2208  return NULL;
2209 
2210  for (i = 0; i < a->length; i++)
2211  vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2212  for (i = 0; i < b->length; i++)
2213  vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] -= b->coeff[i];
2214 
2215  return vec;
2216 }
2217 #endif
2218 
2219 /* shift left / or right if "shift" is negative */
2220 static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2221 {
2222  int length = a->length + FFABS(shift) * 2;
2223  int i;
2224  SwsVector *vec = sws_getConstVec(0.0, length);
2225 
2226  if (!vec)
2227  return NULL;
2228 
2229  for (i = 0; i < a->length; i++) {
2230  vec->coeff[i + (length - 1) / 2 -
2231  (a->length - 1) / 2 - shift] = a->coeff[i];
2232  }
2233 
2234  return vec;
2235 }
2236 
2237 #if !FF_API_SWS_VECTOR
2238 static
2239 #endif
2240 void sws_shiftVec(SwsVector *a, int shift)
2241 {
2242  SwsVector *shifted = sws_getShiftedVec(a, shift);
2243  if (!shifted) {
2244  makenan_vec(a);
2245  return;
2246  }
2247  av_free(a->coeff);
2248  a->coeff = shifted->coeff;
2249  a->length = shifted->length;
2250  av_free(shifted);
2251 }
2252 
2253 #if !FF_API_SWS_VECTOR
2254 static
2255 #endif
2256 void sws_addVec(SwsVector *a, SwsVector *b)
2257 {
2258  SwsVector *sum = sws_sumVec(a, b);
2259  if (!sum) {
2260  makenan_vec(a);
2261  return;
2262  }
2263  av_free(a->coeff);
2264  a->coeff = sum->coeff;
2265  a->length = sum->length;
2266  av_free(sum);
2267 }
2268 
2269 #if FF_API_SWS_VECTOR
2270 void sws_subVec(SwsVector *a, SwsVector *b)
2271 {
2272  SwsVector *diff = sws_diffVec(a, b);
2273  if (!diff) {
2274  makenan_vec(a);
2275  return;
2276  }
2277  av_free(a->coeff);
2278  a->coeff = diff->coeff;
2279  a->length = diff->length;
2280  av_free(diff);
2281 }
2282 
2283 void sws_convVec(SwsVector *a, SwsVector *b)
2284 {
2285  SwsVector *conv = sws_getConvVec(a, b);
2286  if (!conv) {
2287  makenan_vec(a);
2288  return;
2289  }
2290  av_free(a->coeff);
2291  a->coeff = conv->coeff;
2292  a->length = conv->length;
2293  av_free(conv);
2294 }
2295 
2296 SwsVector *sws_cloneVec(SwsVector *a)
2297 {
2298  SwsVector *vec = sws_allocVec(a->length);
2299 
2300  if (!vec)
2301  return NULL;
2302 
2303  memcpy(vec->coeff, a->coeff, a->length * sizeof(*a->coeff));
2304 
2305  return vec;
2306 }
2307 #endif
2308 
2309 /**
2310  * Print with av_log() a textual representation of the vector a
2311  * if log_level <= av_log_level.
2312  */
2313 #if !FF_API_SWS_VECTOR
2314 static
2315 #endif
2316 void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2317 {
2318  int i;
2319  double max = 0;
2320  double min = 0;
2321  double range;
2322 
2323  for (i = 0; i < a->length; i++)
2324  if (a->coeff[i] > max)
2325  max = a->coeff[i];
2326 
2327  for (i = 0; i < a->length; i++)
2328  if (a->coeff[i] < min)
2329  min = a->coeff[i];
2330 
2331  range = max - min;
2332 
2333  for (i = 0; i < a->length; i++) {
2334  int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2335  av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2336  for (; x > 0; x--)
2337  av_log(log_ctx, log_level, " ");
2338  av_log(log_ctx, log_level, "|\n");
2339  }
2340 }
2341 
2342 void sws_freeVec(SwsVector *a)
2343 {
2344  if (!a)
2345  return;
2346  av_freep(&a->coeff);
2347  a->length = 0;
2348  av_free(a);
2349 }
2350 
2351 void sws_freeFilter(SwsFilter *filter)
2352 {
2353  if (!filter)
2354  return;
2355 
2356  sws_freeVec(filter->lumH);
2357  sws_freeVec(filter->lumV);
2358  sws_freeVec(filter->chrH);
2359  sws_freeVec(filter->chrV);
2360  av_free(filter);
2361 }
2362 
2363 void sws_freeContext(SwsContext *c)
2364 {
2365  int i;
2366  if (!c)
2367  return;
2368 
2369  for (i = 0; i < 4; i++)
2370  av_freep(&c->dither_error[i]);
2371 
2372  av_freep(&c->vLumFilter);
2373  av_freep(&c->vChrFilter);
2374  av_freep(&c->hLumFilter);
2375  av_freep(&c->hChrFilter);
2376 #if HAVE_ALTIVEC
2377  av_freep(&c->vYCoeffsBank);
2378  av_freep(&c->vCCoeffsBank);
2379 #endif
2380 
2381  av_freep(&c->vLumFilterPos);
2382  av_freep(&c->vChrFilterPos);
2383  av_freep(&c->hLumFilterPos);
2384  av_freep(&c->hChrFilterPos);
2385 
2386 #if HAVE_MMX_INLINE
2387 #if USE_MMAP
2388  if (c->lumMmxextFilterCode)
2389  munmap(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2390  if (c->chrMmxextFilterCode)
2391  munmap(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2392 #elif HAVE_VIRTUALALLOC
2393  if (c->lumMmxextFilterCode)
2394  VirtualFree(c->lumMmxextFilterCode, 0, MEM_RELEASE);
2395  if (c->chrMmxextFilterCode)
2396  VirtualFree(c->chrMmxextFilterCode, 0, MEM_RELEASE);
2397 #else
2398  av_free(c->lumMmxextFilterCode);
2399  av_free(c->chrMmxextFilterCode);
2400 #endif
2401  c->lumMmxextFilterCode = NULL;
2402  c->chrMmxextFilterCode = NULL;
2403 #endif /* HAVE_MMX_INLINE */
2404 
2405  av_freep(&c->yuvTable);
2406  av_freep(&c->formatConvBuffer);
2407 
2408  sws_freeContext(c->cascaded_context[0]);
2409  sws_freeContext(c->cascaded_context[1]);
2410  sws_freeContext(c->cascaded_context[2]);
2411  memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2412  av_freep(&c->cascaded_tmp[0]);
2413  av_freep(&c->cascaded1_tmp[0]);
2414 
2415  av_freep(&c->gamma);
2416  av_freep(&c->inv_gamma);
2417 
2418  ff_free_filters(c);
2419 
2420  av_free(c);
2421 }
2422 
2423 struct SwsContext *sws_getCachedContext(struct SwsContext *context, int srcW,
2424  int srcH, enum AVPixelFormat srcFormat,
2425  int dstW, int dstH,
2426  enum AVPixelFormat dstFormat, int flags,
2427  SwsFilter *srcFilter,
2428  SwsFilter *dstFilter,
2429  const double *param)
2430 {
2431  static const double default_param[2] = { SWS_PARAM_DEFAULT,
2432  SWS_PARAM_DEFAULT };
2433  int64_t src_h_chr_pos = -513, dst_h_chr_pos = -513,
2434  src_v_chr_pos = -513, dst_v_chr_pos = -513;
2435 
2436  if (!param)
2437  param = default_param;
2438 
2439  if (context &&
2440  (context->srcW != srcW ||
2441  context->srcH != srcH ||
2442  context->srcFormat != srcFormat ||
2443  context->dstW != dstW ||
2444  context->dstH != dstH ||
2445  context->dstFormat != dstFormat ||
2446  context->flags != flags ||
2447  context->param[0] != param[0] ||
2448  context->param[1] != param[1])) {
2449 
2450  av_opt_get_int(context, "src_h_chr_pos", 0, &src_h_chr_pos);
2451  av_opt_get_int(context, "src_v_chr_pos", 0, &src_v_chr_pos);
2452  av_opt_get_int(context, "dst_h_chr_pos", 0, &dst_h_chr_pos);
2453  av_opt_get_int(context, "dst_v_chr_pos", 0, &dst_v_chr_pos);
2454  sws_freeContext(context);
2455  context = NULL;
2456  }
2457 
2458  if (!context) {
2459  if (!(context = sws_alloc_context()))
2460  return NULL;
2461  context->srcW = srcW;
2462  context->srcH = srcH;
2463  context->srcFormat = srcFormat;
2464  context->dstW = dstW;
2465  context->dstH = dstH;
2466  context->dstFormat = dstFormat;
2467  context->flags = flags;
2468  context->param[0] = param[0];
2469  context->param[1] = param[1];
2470 
2471  av_opt_set_int(context, "src_h_chr_pos", src_h_chr_pos, 0);
2472  av_opt_set_int(context, "src_v_chr_pos", src_v_chr_pos, 0);
2473  av_opt_set_int(context, "dst_h_chr_pos", dst_h_chr_pos, 0);
2474  av_opt_set_int(context, "dst_v_chr_pos", dst_v_chr_pos, 0);
2475 
2476  if (sws_init_context(context, srcFilter, dstFilter) < 0) {
2477  sws_freeContext(context);
2478  return NULL;
2479  }
2480  }
2481  return context;
2482 }
have_neon
#define have_neon(flags)
Definition: cpu.h:26
format
static const char *const format[]
Definition: af_aiir.c:456
MAX_FILTER_SIZE
#define MAX_FILTER_SIZE
Definition: af_dynaudnorm.c:33
ff_sws_alphablendaway
int ff_sws_alphablendaway(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
Definition: alphablend.c:23
A
#define A(x)
Definition: vp56_arith.h:28
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition: attributes.h:88
uint8_t
uint8_t
Definition: audio_convert.c:194
int32_t
int32_t
Definition: audio_convert.c:194
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
V
#define V
Definition: avdct.c:30
avutil.h
Convenience header that includes libavutil's core.
bswap.h
byte swapping routines
flag
#define flag(name)
Definition: cbs_av1.c:564
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:572
ub
#define ub(width, name)
Definition: cbs_h2645.c:266
s
#define s(width, name)
Definition: cbs_vp9.c:257
filter
static av_always_inline void filter(int16_t *output, ptrdiff_t out_stride, const int16_t *low, ptrdiff_t low_stride, const int16_t *high, ptrdiff_t high_stride, int len, int clip)
Definition: cfhddsp.c:27
verbose
int verbose
Definition: checkasm.c:285
fail
#define fail()
Definition: checkasm.h:133
FFMIN
#define FFMIN(a, b)
Definition: common.h:105
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
ROUNDED_DIV
#define ROUNDED_DIV(a, b)
Definition: common.h:56
FFMAX
#define FFMAX(a, b)
Definition: common.h:103
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
FFMPEG_CONFIGURATION
#define FFMPEG_CONFIGURATION
Definition: config.h:4
ARCH_PPC
#define ARCH_PPC
Definition: config.h:30
CONFIG_SWSCALE_ALPHA
#define CONFIG_SWSCALE_ALPHA
Definition: config.h:568
FFMPEG_LICENSE
#define FFMPEG_LICENSE
Definition: config.h:5
HAVE_MMX
#define HAVE_MMX
Definition: config.h:65
NULL
#define NULL
Definition: coverity.c:32
int64_t
long long int64_t
Definition: coverity.c:34
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
AV_CPU_FLAG_MMX
#define AV_CPU_FLAG_MMX
standard MMX
Definition: cpu.h:31
ceil
static __device__ float ceil(float a)
Definition: cuda_runtime.h:176
max
#define max(a, b)
Definition: cuda_runtime.h:33
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demuxing_decoding.c:40
exp
int8_t exp
Definition: eval.c:74
int
int
Definition: ffmpeg_filter.c:170
av_opt_set_defaults
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
Definition: opt.c:1358
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
AVERROR
#define AVERROR(e)
Definition: error.h:43
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:210
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:205
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:245
av_image_alloc
int av_image_alloc(uint8_t *pointers[4], int linesizes[4], int w, int h, enum AVPixelFormat pix_fmt, int align)
Allocate an image with size w and h and pixel format pix_fmt, and fill pointers and linesizes accordi...
Definition: imgutils.c:216
SWS_BITEXACT
#define SWS_BITEXACT
Definition: swscale.h:84
sws_subVec
void sws_subVec(SwsVector *a, SwsVector *b)
Definition: utils.c:2270
SWS_BICUBIC
#define SWS_BICUBIC
Definition: swscale.h:60
sws_getColorspaceDetails
int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation)
Definition: utils.c:1015
sws_freeFilter
void sws_freeFilter(SwsFilter *filter)
Definition: utils.c:2351
sws_addVec
void sws_addVec(SwsVector *a, SwsVector *b)
Definition: utils.c:2256
SWS_CS_DEFAULT
#define SWS_CS_DEFAULT
Definition: swscale.h:95
sws_init_context
av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
Initialize the swscaler context sws_context.
Definition: utils.c:1187
sws_getGaussianVec
SwsVector * sws_getGaussianVec(double variance, double quality)
Return a normalized Gaussian curve used to filter stuff quality = 3 is high quality,...
Definition: utils.c:2080
SWS_BILINEAR
#define SWS_BILINEAR
Definition: swscale.h:59
SWS_ACCURATE_RND
#define SWS_ACCURATE_RND
Definition: swscale.h:83
sws_shiftVec
void sws_shiftVec(SwsVector *a, int shift)
Definition: utils.c:2240
SWS_SRC_V_CHR_DROP_MASK
#define SWS_SRC_V_CHR_DROP_MASK
Definition: swscale.h:70
SWS_FULL_CHR_H_INT
#define SWS_FULL_CHR_H_INT
Definition: swscale.h:79
SWS_FULL_CHR_H_INP
#define SWS_FULL_CHR_H_INP
Definition: swscale.h:81
SWS_PRINT_INFO
#define SWS_PRINT_INFO
Definition: swscale.h:75
sws_getConstVec
SwsVector * sws_getConstVec(double c, int length)
Allocate and return a vector with length coefficients, all with the same value c.
Definition: utils.c:2113
sws_setColorspaceDetails
int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)
Definition: utils.c:880
sws_freeVec
void sws_freeVec(SwsVector *a)
Definition: utils.c:2342
sws_cloneVec
SwsVector * sws_cloneVec(SwsVector *a)
Definition: utils.c:2296
SWS_X
#define SWS_X
Definition: swscale.h:61
SWS_FAST_BILINEAR
#define SWS_FAST_BILINEAR
Definition: swscale.h:58
sws_isSupportedEndiannessConversion
int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
Definition: utils.c:289
sws_isSupportedOutput
int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
Return a positive value if pix_fmt is a supported output format, 0 otherwise.
Definition: utils.c:283
SWS_GAUSS
#define SWS_GAUSS
Definition: swscale.h:65
SWS_AREA
#define SWS_AREA
Definition: swscale.h:63
SWS_SRC_V_CHR_DROP_SHIFT
#define SWS_SRC_V_CHR_DROP_SHIFT
Definition: swscale.h:71
SWS_SINC
#define SWS_SINC
Definition: swscale.h:66
sws_allocVec
SwsVector * sws_allocVec(int length)
Allocate and return an uninitialized vector with length coefficients.
Definition: utils.c:2063
SWS_BICUBLIN
#define SWS_BICUBLIN
Definition: swscale.h:64
sws_printVec2
void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
Print with av_log() a textual representation of the vector a if log_level <= av_log_level.
Definition: utils.c:2316
SWS_ERROR_DIFFUSION
#define SWS_ERROR_DIFFUSION
Definition: swscale.h:85
sws_convVec
void sws_convVec(SwsVector *a, SwsVector *b)
Definition: utils.c:2283
sws_getIdentityVec
SwsVector * sws_getIdentityVec(void)
Allocate and return a vector with just one coefficient, with value 1.0.
Definition: utils.c:2134
swscale_license
const char * swscale_license(void)
Return the libswscale license.
Definition: utils.c:86
SWS_POINT
#define SWS_POINT
Definition: swscale.h:62
SWS_LANCZOS
#define SWS_LANCZOS
Definition: swscale.h:67
swscale_configuration
const char * swscale_configuration(void)
Return the libswscale build-time configuration.
Definition: utils.c:81
sws_normalizeVec
void sws_normalizeVec(SwsVector *a, double height)
Scale all the coefficients of a so that their sum equals height.
Definition: utils.c:2158
sws_isSupportedInput
int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
Return a positive value if pix_fmt is a supported input format, 0 otherwise.
Definition: utils.c:277
sws_getDefaultFilter
SwsFilter * sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, float lumaSharpen, float chromaSharpen, float chromaHShift, float chromaVShift, int verbose)
Definition: utils.c:1980
sws_alloc_context
SwsContext * sws_alloc_context(void)
Allocate an empty SwsContext.
Definition: utils.c:1101
swscale_version
unsigned swscale_version(void)
Definition: utils.c:75
SWS_MAX_REDUCE_CUTOFF
#define SWS_MAX_REDUCE_CUTOFF
Definition: swscale.h:87
sws_freeContext
void sws_freeContext(SwsContext *c)
Free the swscaler context swsContext.
Definition: utils.c:2363
SWS_PARAM_DEFAULT
#define SWS_PARAM_DEFAULT
Definition: swscale.h:73
sws_getCachedContext
struct SwsContext * sws_getCachedContext(struct SwsContext *context, int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Check if context can be reused, otherwise reallocate a new one.
Definition: utils.c:2423
sws_getContext
SwsContext * sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Allocate and return an SwsContext.
Definition: utils.c:1943
sws_scaleVec
void sws_scaleVec(SwsVector *a, double scalar)
Scale all the coefficients of a by the scalar value.
Definition: utils.c:2150
SWS_SPLINE
#define SWS_SPLINE
Definition: swscale.h:68
av_opt_get_int
int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
Definition: opt.c:912
av_opt_set_int
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
Definition: opt.c:586
a
a
Definition: h264pred_template.c:468
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
B
#define B
Definition: huffyuvdsp.h:32
map
const VDPAUPixFmtMap * map
Definition: hwcontext_vdpau.c:71
imgutils.h
misc image utilities
i
int i
Definition: input.c:407
av_log2
#define av_log2
Definition: intmath.h:83
AV_WL16
#define AV_WL16(p, v)
Definition: intreadwrite.h:412
C
#define C
FF_ALLOC_TYPED_ARRAY
#define FF_ALLOC_TYPED_ARRAY(p, nelem)
Definition: internal.h:102
emms_c
#define emms_c()
Definition: internal.h:54
FF_ALLOCZ_TYPED_ARRAY
#define FF_ALLOCZ_TYPED_ARRAY(p, nelem)
Definition: internal.h:103
libm.h
Replacements for frequently missing libm functions.
isnan
#define isnan(x)
Definition: libm.h:340
exp2
#define exp2(x)
Definition: libm.h:288
ff_sws_context_class
const AVClass ff_sws_context_class
Definition: options.c:87
handle_0alpha
static int handle_0alpha(enum AVPixelFormat *format)
Definition: utils.c:1071
handle_xyz
static int handle_xyz(enum AVPixelFormat *format)
Definition: utils.c:1082
fill_xyztables
static void fill_xyztables(struct SwsContext *c)
Definition: utils.c:839
alphaless_fmt
static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
Definition: utils.c:1129
sws_alloc_set_opts
SwsContext * sws_alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, const double *param)
Allocate and return an SwsContext.
Definition: utils.c:1918
initFilter
static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos, int *outFilterSize, int xInc, int srcW, int dstW, int filterAlign, int one, int flags, int cpu_flags, SwsVector *srcFilter, SwsVector *dstFilter, double param[2], int srcPos, int dstPos)
Definition: utils.c:337
handle_jpeg
static int handle_jpeg(enum AVPixelFormat *format)
Definition: utils.c:1033
scale_algorithms
static const ScaleAlgorithm scale_algorithms[]
Definition: utils.c:323
getSplineCoeff
static double getSplineCoeff(double a, double b, double c, double d, double dist)
Definition: utils.c:295
fill_rgb2yuv_table
static void fill_rgb2yuv_table(SwsContext *c, const int table[4], int dstRange)
Definition: utils.c:745
sws_getConvVec
static SwsVector * sws_getConvVec(SwsVector *a, SwsVector *b)
Definition: utils.c:2164
sws_sumVec
static SwsVector * sws_sumVec(SwsVector *a, SwsVector *b)
Definition: utils.c:2183
get_local_pos
static av_cold int get_local_pos(SwsContext *s, int chr_subsample, int pos, int dir)
Definition: utils.c:308
makenan_vec
static void makenan_vec(SwsVector *a)
Definition: utils.c:1973
handle_formats
static void handle_formats(SwsContext *c)
Definition: utils.c:1091
sws_dcVec
static double sws_dcVec(SwsVector *a)
Definition: utils.c:2139
isnan_vec
static int isnan_vec(SwsVector *a)
Definition: utils.c:1964
alloc_gamma_tbl
static uint16_t * alloc_gamma_tbl(double e)
Definition: utils.c:1115
format_entries
static const FormatEntry format_entries[]
Definition: utils.c:98
sws_getShiftedVec
static SwsVector * sws_getShiftedVec(SwsVector *a, int shift)
Definition: utils.c:2220
sws_diffVec
static SwsVector * sws_diffVec(SwsVector *a, SwsVector *b)
Definition: utils.c:2201
LICENSE_PREFIX
#define LICENSE_PREFIX
range_override_needed
static int range_override_needed(enum AVPixelFormat format)
Definition: utils.c:875
LIBSWSCALE_VERSION_INT
#define LIBSWSCALE_VERSION_INT
Definition: version.h:33
LIBSWSCALE_VERSION_MICRO
#define LIBSWSCALE_VERSION_MICRO
Definition: version.h:31
conv
static int conv(int samples, float **pcm, char *buf, int channels)
Definition: libvorbisdec.c:131
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
NAN
#define NAN
Definition: mathematics.h:64
M_PI
#define M_PI
Definition: mathematics.h:52
c2
static const uint64_t c2
Definition: murmur3.c:52
opt.h
AVOptions.
av_pix_fmt_get_chroma_sub_sample
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: pixdesc.c:2601
av_get_bits_per_pixel
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
Definition: pixdesc.c:2525
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2489
av_pix_fmt_swap_endianness
enum AVPixelFormat av_pix_fmt_swap_endianness(enum AVPixelFormat pix_fmt)
Utility function to swap the endianness of a pixel format.
Definition: pixdesc.c:2669
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
AV_PIX_FMT_BGR555
#define AV_PIX_FMT_BGR555
Definition: pixfmt.h:392
AV_PIX_FMT_BGR48
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:390
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
AV_PIX_FMT_RGB48
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:385
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:431
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
AV_PIX_FMT_BAYER_GBRG8
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:262
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:136
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
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:199
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:89
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:132
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
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:284
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
AV_PIX_FMT_GRAY10LE
@ AV_PIX_FMT_GRAY10LE
Y , 10bpp, little-endian.
Definition: pixfmt.h:298
AV_PIX_FMT_GRAYF32LE
@ AV_PIX_FMT_GRAYF32LE
IEEE-754 single precision Y, 32bpp, little-endian.
Definition: pixfmt.h:341
AV_PIX_FMT_GBRP10BE
@ AV_PIX_FMT_GBRP10BE
planar GBR 4:4:4 30bpp, big-endian
Definition: pixfmt.h:172
AV_PIX_FMT_YA16BE
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:212
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:178
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:345
AV_PIX_FMT_NV42
@ AV_PIX_FMT_NV42
as above, but U and V bytes are swapped
Definition: pixfmt.h:349
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:245
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:66
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
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:276
AV_PIX_FMT_NV21
@ AV_PIX_FMT_NV21
as above, but U and V bytes are swapped
Definition: pixfmt.h:90
AV_PIX_FMT_GBRPF32BE
@ AV_PIX_FMT_GBRPF32BE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, big-endian.
Definition: pixfmt.h:318
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:76
AV_PIX_FMT_BGR565BE
@ AV_PIX_FMT_BGR565BE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
Definition: pixfmt.h:110
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:343
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:183
AV_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:240
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:189
AV_PIX_FMT_GBRP9LE
@ AV_PIX_FMT_GBRP9LE
planar GBR 4:4:4 27bpp, little-endian
Definition: pixfmt.h:171
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:252
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:184
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:344
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:70
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:270
AV_PIX_FMT_P016LE
@ AV_PIX_FMT_P016LE
like NV12, with 16bpp per component, little-endian
Definition: pixfmt.h:300
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:285
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:279
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
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:107
AV_PIX_FMT_YVYU422
@ AV_PIX_FMT_YVYU422
packed YUV 4:2:2, 16bpp, Y0 Cr Y1 Cb
Definition: pixfmt.h:210
AV_PIX_FMT_GBRP12BE
@ AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition: pixfmt.h:254
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:181
AV_PIX_FMT_GRAY12LE
@ AV_PIX_FMT_GRAY12LE
Y , 12bpp, little-endian.
Definition: pixfmt.h:296
AV_PIX_FMT_GBRAP12BE
@ AV_PIX_FMT_GBRAP12BE
planar GBR 4:4:4:4 48bpp, big-endian
Definition: pixfmt.h:287
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:157
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
AV_PIX_FMT_GRAY12BE
@ AV_PIX_FMT_GRAY12BE
Y , 12bpp, big-endian.
Definition: pixfmt.h:295
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
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:148
AV_PIX_FMT_YA16LE
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:213
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:185
AV_PIX_FMT_GRAY14LE
@ AV_PIX_FMT_GRAY14LE
Y , 14bpp, little-endian.
Definition: pixfmt.h:338
AV_PIX_FMT_UYVY422
@ AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
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:359
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:102
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
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:101
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:160
AV_PIX_FMT_P016BE
@ AV_PIX_FMT_P016BE
like NV12, with 16bpp per component, big-endian
Definition: pixfmt.h:301
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:187
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:159
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:100
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:72
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:205
AV_PIX_FMT_RGB8
@ AV_PIX_FMT_RGB8
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:86
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:348
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:206
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:239
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:73
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:133
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:244
AV_PIX_FMT_GBRAP16BE
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
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:253
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:266
AV_PIX_FMT_GBRPF32LE
@ AV_PIX_FMT_GBRPF32LE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, little-endian.
Definition: pixfmt.h:319
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:182
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:247
AV_PIX_FMT_BGR8
@ AV_PIX_FMT_BGR8
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:83
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:139
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:164
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:277
AV_PIX_FMT_RGB4_BYTE
@ AV_PIX_FMT_RGB4_BYTE
packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
Definition: pixfmt.h:88
AV_PIX_FMT_BGR4_BYTE
@ AV_PIX_FMT_BGR4_BYTE
packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
Definition: pixfmt.h:85
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:179
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
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:71
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:200
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:163
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:177
AV_PIX_FMT_BAYER_GRBG8
@ AV_PIX_FMT_BAYER_GRBG8
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:263
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:258
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
AV_PIX_FMT_GBRP12LE
@ AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition: pixfmt.h:255
AV_PIX_FMT_GRAY9BE
@ AV_PIX_FMT_GRAY9BE
Y , 9bpp, big-endian.
Definition: pixfmt.h:315
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:195
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:186
AV_PIX_FMT_UYYVYY411
@ AV_PIX_FMT_UYYVYY411
packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
Definition: pixfmt.h:82
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:192
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:207
AV_PIX_FMT_RGB565LE
@ AV_PIX_FMT_RGB565LE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
Definition: pixfmt.h:106
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:265
AV_PIX_FMT_GBRP16BE
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
AV_PIX_FMT_GBRAP12LE
@ AV_PIX_FMT_GBRAP12LE
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
AV_PIX_FMT_GBRP9BE
@ AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition: pixfmt.h:170
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:191
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:108
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:142
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:103
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:112
AV_PIX_FMT_GBRAPF32BE
@ AV_PIX_FMT_GBRAPF32BE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, big-endian.
Definition: pixfmt.h:320
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:141
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:190
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:243
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:267
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:361
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:79
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:162
AV_PIX_FMT_GBRAPF32LE
@ AV_PIX_FMT_GBRAPF32LE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, little-endian.
Definition: pixfmt.h:321
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:167
AV_PIX_FMT_GRAYF32BE
@ AV_PIX_FMT_GRAYF32BE
IEEE-754 single precision Y, 32bpp, big-endian.
Definition: pixfmt.h:340
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:140
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:166
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:149
AV_PIX_FMT_GBRP14LE
@ AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition: pixfmt.h:257
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
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:161
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
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:176
AV_PIX_FMT_GBRP10LE
@ AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition: pixfmt.h:173
AV_PIX_FMT_GBRAP10BE
@ AV_PIX_FMT_GBRAP10BE
planar GBR 4:4:4:4 40bpp, big-endian
Definition: pixfmt.h:290
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:271
AV_PIX_FMT_RGB565BE
@ AV_PIX_FMT_RGB565BE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
Definition: pixfmt.h:105
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:113
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:242
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:208
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:278
AV_PIX_FMT_GBRAP10LE
@ AV_PIX_FMT_GBRAP10LE
planar GBR 4:4:4:4 40bpp, little-endian
Definition: pixfmt.h:291
AV_PIX_FMT_YUYV422
@ AV_PIX_FMT_YUYV422
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
Definition: pixfmt.h:67
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:134
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:268
AV_PIX_FMT_PAL8
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
AV_PIX_FMT_GRAY9LE
@ AV_PIX_FMT_GRAY9LE
Y , 9bpp, little-endian.
Definition: pixfmt.h:316
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
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:249
AV_PIX_FMT_GBRAP16LE
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
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:264
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:158
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:156
AV_PIX_FMT_GRAY10BE
@ AV_PIX_FMT_GRAY10BE
Y , 10bpp, big-endian.
Definition: pixfmt.h:297
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:188
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:275
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:143
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:135
AV_PIX_FMT_0RGB
@ AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:237
AV_PIX_FMT_GRAY14BE
@ AV_PIX_FMT_GRAY14BE
Y , 14bpp, big-endian.
Definition: pixfmt.h:337
AV_PIX_FMT_GBRP14BE
@ AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition: pixfmt.h:256
AV_PIX_FMT_BGR565LE
@ AV_PIX_FMT_BGR565LE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
Definition: pixfmt.h:111
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:248
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:269
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:80
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:250
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:194
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:193
AV_PIX_FMT_BAYER_RGGB8
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:261
AV_PIX_FMT_GBRP16LE
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
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:180
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:87
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:346
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:75
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:84
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:165
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:78
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:246
AV_PIX_FMT_BAYER_BGGR8
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:260
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:131
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:251
AV_PIX_FMT_BGR565
#define AV_PIX_FMT_BGR565
Definition: pixfmt.h:391
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:411
AV_PIX_FMT_BGRA64
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:394
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:418
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:412
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
PPC_ALTIVEC
#define PPC_ALTIVEC(flags)
Definition: cpu.h:25
table
static const uint16_t table[]
Definition: prosumer.c:206
ff_sws_rgb2rgb_init
av_cold void ff_sws_rgb2rgb_init(void)
Definition: rgb2rgb.c:137
rgb15to16
void(* rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:51
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
ff_free_filters
int ff_free_filters(SwsContext *c)
Definition: slice.c:382
ff_init_filters
int ff_init_filters(SwsContext *c)
Definition: slice.c:248
shift
static int shift(int a, int b)
Definition: sonic.c:82
pos
unsigned int pos
Definition: spdifenc.c:412
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
FormatEntry::is_supported_in
uint8_t is_supported_in
Definition: utils.c:93
FormatEntry::is_supported_endianness
uint8_t is_supported_endianness
Definition: utils.c:95
FormatEntry::is_supported_out
uint8_t is_supported_out
Definition: utils.c:94
ScaleAlgorithm::flag
int flag
flag associated to the algorithm
Definition: utils.c:318
ScaleAlgorithm::size_factor
int size_factor
size factor used when initing the filters
Definition: utils.c:320
ScaleAlgorithm::description
const char * description
human-readable description
Definition: utils.c:319
SwsContext::dstW
int dstW
Width of destination luma/alpha planes.
Definition: swscale_internal.h:481
SwsContext::dstH
int dstH
Height of destination luma/alpha planes.
Definition: swscale_internal.h:296
SwsContext::srcW
int srcW
Width of source luma/alpha planes.
Definition: swscale_internal.h:294
SwsContext::flags
int flags
Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc....
Definition: swscale_internal.h:398
SwsContext::param
double param[2]
Input parameters for scaling algorithms that need them.
Definition: swscale_internal.h:314
SwsContext::dstFormat
enum AVPixelFormat dstFormat
Destination pixel format.
Definition: swscale_internal.h:303
SwsContext::srcH
int srcH
Height of source luma/alpha planes.
Definition: swscale_internal.h:295
SwsContext::srcFormat
enum AVPixelFormat srcFormat
Source pixel format.
Definition: swscale_internal.h:304
SwsFilter::chrV
SwsVector * chrV
Definition: swscale.h:119
SwsFilter::lumH
SwsVector * lumH
Definition: swscale.h:116
SwsFilter::lumV
SwsVector * lumV
Definition: swscale.h:117
SwsFilter::chrH
SwsVector * chrH
Definition: swscale.h:118
SwsVector::coeff
double * coeff
pointer to the list of coefficients
Definition: swscale.h:110
SwsVector::length
int length
number of coefficients in the vector
Definition: swscale.h:111
ff_sws_init_range_convert
av_cold void ff_sws_init_range_convert(SwsContext *c)
Definition: swscale.c:527
RGB2YUV_SHIFT
#define RGB2YUV_SHIFT
ff_getSwsFunc
SwsFunc ff_getSwsFunc(SwsContext *c)
Return function pointer to fastest main scaler path function depending on architecture and available ...
Definition: swscale.c:584
swscale.h
external API header
swscale_internal.h
APCK_SIZE
#define APCK_SIZE
Definition: swscale_internal.h:59
isBayer
static av_always_inline int isBayer(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:761
BU_IDX
#define BU_IDX
Definition: swscale_internal.h:412
RV_IDX
#define RV_IDX
Definition: swscale_internal.h:413
ff_init_hscaler_mmxext
int ff_init_hscaler_mmxext(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
isFloat
static av_always_inline int isFloat(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:783
DITHER1XBPP
#define DITHER1XBPP
Definition: swscale_internal.h:44
isAnyRGB
static av_always_inline int isAnyRGB(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:775
DITHER32_INT
#define DITHER32_INT
Definition: swscale_internal.h:465
RY_IDX
#define RY_IDX
Definition: swscale_internal.h:407
ff_get_unscaled_swscale
void ff_get_unscaled_swscale(SwsContext *c)
Set c->swscale to an unscaled converter if one exists for the specific source and destination formats...
Definition: swscale_unscaled.c:1979
BV_IDX
#define BV_IDX
Definition: swscale_internal.h:415
is16BPS
static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:646
GV_IDX
#define GV_IDX
Definition: swscale_internal.h:414
RETCODE_USE_CASCADE
#define RETCODE_USE_CASCADE
Definition: swscale_internal.h:62
SWS_DITHER_ED
@ SWS_DITHER_ED
Definition: swscale_internal.h:70
SWS_DITHER_A_DITHER
@ SWS_DITHER_A_DITHER
Definition: swscale_internal.h:71
SWS_DITHER_X_DITHER
@ SWS_DITHER_X_DITHER
Definition: swscale_internal.h:72
SWS_DITHER_AUTO
@ SWS_DITHER_AUTO
Definition: swscale_internal.h:68
SWS_DITHER_BAYER
@ SWS_DITHER_BAYER
Definition: swscale_internal.h:69
XYZ_GAMMA
#define XYZ_GAMMA
Definition: swscale_internal.h:512
GU_IDX
#define GU_IDX
Definition: swscale_internal.h:411
SWS_ALPHA_BLEND_NONE
@ SWS_ALPHA_BLEND_NONE
Definition: swscale_internal.h:77
BY_IDX
#define BY_IDX
Definition: swscale_internal.h:409
RGB_GAMMA
#define RGB_GAMMA
Definition: swscale_internal.h:513
ff_yuv2rgb_c_init_tables
int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
Definition: yuv2rgb.c:774
GY_IDX
#define GY_IDX
Definition: swscale_internal.h:408
isPlanarRGB
static av_always_inline int isPlanarRGB(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:822
RU_IDX
#define RU_IDX
Definition: swscale_internal.h:410
isBayer16BPS
static av_always_inline int isBayer16BPS(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:768
isNBPS
static av_always_inline int isNBPS(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:660
ff_yuv2rgb_coeffs
const int32_t ff_yuv2rgb_coeffs[11][4]
Definition: yuv2rgb.c:49
isYUV
static av_always_inline int isYUV(enum AVPixelFormat pix_fmt)
Definition: swscale_internal.h:674
lrint
#define lrint
Definition: tablegen.h:53
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
error
static void error(const char *err)
Definition: target_bsf_fuzzer.c:30
isALPHA
#define isALPHA(x)
Definition: swscale.c:51
isGray
#define isGray(x)
Definition: swscale.c:40
height
static int height
Definition: utils.c:158
ONE
@ ONE
Definition: vc1_parser.c:48
W
@ W
Definition: vf_addroi.c:26
b
const char * b
Definition: vf_curves.c:118
coeff
static const double coeff[2][5]
Definition: vf_owdenoise.c:73
diff
static av_always_inline int diff(const uint32_t a, const uint32_t b)
Definition: vf_palettegen.c:136
min
float min
Definition: vorbis_enc_data.h:456
c
static double c[64]
Definition: vsrc_mptestsrc.c:92
X86_MMX
#define X86_MMX(flags)
Definition: cpu.h:30
INLINE_MMXEXT
#define INLINE_MMXEXT(flags)
Definition: cpu.h:87
INLINE_MMX
#define INLINE_MMX(flags)
Definition: cpu.h:86
INLINE_AMD3DNOW
#define INLINE_AMD3DNOW(flags)
Definition: cpu.h:84
acc
int acc
Definition: yuv2rgb.c:555
ff_yuv2rgb_init_tables_ppc
av_cold void ff_yuv2rgb_init_tables_ppc(SwsContext *c, const int inv_table[4], int brightness, int contrast, int saturation)
Definition: yuv2rgb_altivec.c:598
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