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yuv2rgb.c
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1 /*
2  * software YUV to RGB converter
3  *
4  * Copyright (C) 2009 Konstantin Shishkov
5  *
6  * 1,4,8bpp support and context / deglobalize stuff
7  * by Michael Niedermayer (michaelni@gmx.at)
8  *
9  * This file is part of FFmpeg.
10  *
11  * FFmpeg is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * FFmpeg is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public
22  * License along with FFmpeg; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24  */
25 
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <inttypes.h>
29 
30 #include "libavutil/cpu.h"
31 #include "libavutil/bswap.h"
32 #include "config.h"
33 #include "rgb2rgb.h"
34 #include "swscale.h"
35 #include "swscale_internal.h"
36 #include "libavutil/pixdesc.h"
37 
38 /* Color space conversion coefficients for YCbCr -> RGB mapping.
39  *
40  * Entries are {crv, cbu, cgu, cgv}
41  *
42  * crv = (255 / 224) * 65536 * (1 - cr) / 0.5
43  * cbu = (255 / 224) * 65536 * (1 - cb) / 0.5
44  * cgu = (255 / 224) * 65536 * (cb / cg) * (1 - cb) / 0.5
45  * cgv = (255 / 224) * 65536 * (cr / cg) * (1 - cr) / 0.5
46  *
47  * where Y = cr * R + cg * G + cb * B and cr + cg + cb = 1.
48  */
49 const int32_t ff_yuv2rgb_coeffs[11][4] = {
50  { 117489, 138438, 13975, 34925 }, /* no sequence_display_extension */
51  { 117489, 138438, 13975, 34925 }, /* ITU-R Rec. 709 (1990) */
52  { 104597, 132201, 25675, 53279 }, /* unspecified */
53  { 104597, 132201, 25675, 53279 }, /* reserved */
54  { 104448, 132798, 24759, 53109 }, /* FCC */
55  { 104597, 132201, 25675, 53279 }, /* ITU-R Rec. 624-4 System B, G */
56  { 104597, 132201, 25675, 53279 }, /* SMPTE 170M */
57  { 117579, 136230, 16907, 35559 }, /* SMPTE 240M (1987) */
58  { 0 }, /* YCgCo */
59  { 110013, 140363, 12277, 42626 }, /* Bt-2020-NCL */
60  { 110013, 140363, 12277, 42626 }, /* Bt-2020-CL */
61 };
62 
63 const int *sws_getCoefficients(int colorspace)
64 {
65  if (colorspace > 10 || colorspace < 0 || colorspace == 8)
66  colorspace = SWS_CS_DEFAULT;
67  return ff_yuv2rgb_coeffs[colorspace];
68 }
69 
70 #define LOADCHROMA(i) \
71  U = pu[i]; \
72  V = pv[i]; \
73  r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \
74  g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
75  b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
76 
77 #define PUTRGB(dst, src, i) \
78  Y = src[2 * i]; \
79  dst[2 * i] = r[Y] + g[Y] + b[Y]; \
80  Y = src[2 * i + 1]; \
81  dst[2 * i + 1] = r[Y] + g[Y] + b[Y];
82 
83 #define PUTRGB24(dst, src, i) \
84  Y = src[2 * i]; \
85  dst[6 * i + 0] = r[Y]; \
86  dst[6 * i + 1] = g[Y]; \
87  dst[6 * i + 2] = b[Y]; \
88  Y = src[2 * i + 1]; \
89  dst[6 * i + 3] = r[Y]; \
90  dst[6 * i + 4] = g[Y]; \
91  dst[6 * i + 5] = b[Y];
92 
93 #define PUTBGR24(dst, src, i) \
94  Y = src[2 * i]; \
95  dst[6 * i + 0] = b[Y]; \
96  dst[6 * i + 1] = g[Y]; \
97  dst[6 * i + 2] = r[Y]; \
98  Y = src[2 * i + 1]; \
99  dst[6 * i + 3] = b[Y]; \
100  dst[6 * i + 4] = g[Y]; \
101  dst[6 * i + 5] = r[Y];
102 
103 #define PUTRGBA(dst, ysrc, asrc, i, s) \
104  Y = ysrc[2 * i]; \
105  dst[2 * i] = r[Y] + g[Y] + b[Y] + (asrc[2 * i] << s); \
106  Y = ysrc[2 * i + 1]; \
107  dst[2 * i + 1] = r[Y] + g[Y] + b[Y] + (asrc[2 * i + 1] << s);
108 
109 #define PUTRGB48(dst, src, i) \
110  Y = src[ 2 * i]; \
111  dst[12 * i + 0] = dst[12 * i + 1] = r[Y]; \
112  dst[12 * i + 2] = dst[12 * i + 3] = g[Y]; \
113  dst[12 * i + 4] = dst[12 * i + 5] = b[Y]; \
114  Y = src[ 2 * i + 1]; \
115  dst[12 * i + 6] = dst[12 * i + 7] = r[Y]; \
116  dst[12 * i + 8] = dst[12 * i + 9] = g[Y]; \
117  dst[12 * i + 10] = dst[12 * i + 11] = b[Y];
118 
119 #define PUTBGR48(dst, src, i) \
120  Y = src[2 * i]; \
121  dst[12 * i + 0] = dst[12 * i + 1] = b[Y]; \
122  dst[12 * i + 2] = dst[12 * i + 3] = g[Y]; \
123  dst[12 * i + 4] = dst[12 * i + 5] = r[Y]; \
124  Y = src[2 * i + 1]; \
125  dst[12 * i + 6] = dst[12 * i + 7] = b[Y]; \
126  dst[12 * i + 8] = dst[12 * i + 9] = g[Y]; \
127  dst[12 * i + 10] = dst[12 * i + 11] = r[Y];
128 
129 #define YUV2RGBFUNC(func_name, dst_type, alpha) \
130  static int func_name(SwsContext *c, const uint8_t *src[], \
131  int srcStride[], int srcSliceY, int srcSliceH, \
132  uint8_t *dst[], int dstStride[]) \
133  { \
134  int y; \
135  \
136  if (!alpha && c->srcFormat == AV_PIX_FMT_YUV422P) { \
137  srcStride[1] *= 2; \
138  srcStride[2] *= 2; \
139  } \
140  for (y = 0; y < srcSliceH; y += 2) { \
141  dst_type *dst_1 = \
142  (dst_type *)(dst[0] + (y + srcSliceY) * dstStride[0]); \
143  dst_type *dst_2 = \
144  (dst_type *)(dst[0] + (y + srcSliceY + 1) * dstStride[0]); \
145  dst_type av_unused *r, *g, *b; \
146  const uint8_t *py_1 = src[0] + y * srcStride[0]; \
147  const uint8_t *py_2 = py_1 + srcStride[0]; \
148  const uint8_t *pu = src[1] + (y >> 1) * srcStride[1]; \
149  const uint8_t *pv = src[2] + (y >> 1) * srcStride[2]; \
150  const uint8_t av_unused *pa_1, *pa_2; \
151  unsigned int h_size = c->dstW >> 3; \
152  if (alpha) { \
153  pa_1 = src[3] + y * srcStride[3]; \
154  pa_2 = pa_1 + srcStride[3]; \
155  } \
156  while (h_size--) { \
157  int av_unused U, V, Y; \
158 
159 #define ENDYUV2RGBLINE(dst_delta, ss) \
160  pu += 4 >> ss; \
161  pv += 4 >> ss; \
162  py_1 += 8 >> ss; \
163  py_2 += 8 >> ss; \
164  dst_1 += dst_delta >> ss; \
165  dst_2 += dst_delta >> ss; \
166  } \
167  if (c->dstW & (4 >> ss)) { \
168  int av_unused Y, U, V; \
169 
170 #define ENDYUV2RGBFUNC() \
171  } \
172  } \
173  return srcSliceH; \
174  }
175 
176 #define CLOSEYUV2RGBFUNC(dst_delta) \
177  ENDYUV2RGBLINE(dst_delta, 0) \
178  ENDYUV2RGBFUNC()
179 
180 YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
181  LOADCHROMA(0);
182  PUTRGB48(dst_1, py_1, 0);
183  PUTRGB48(dst_2, py_2, 0);
184 
185  LOADCHROMA(1);
186  PUTRGB48(dst_2, py_2, 1);
187  PUTRGB48(dst_1, py_1, 1);
188 
189  LOADCHROMA(2);
190  PUTRGB48(dst_1, py_1, 2);
191  PUTRGB48(dst_2, py_2, 2);
192 
193  LOADCHROMA(3);
194  PUTRGB48(dst_2, py_2, 3);
195  PUTRGB48(dst_1, py_1, 3);
196 ENDYUV2RGBLINE(48, 0)
197  LOADCHROMA(0);
198  PUTRGB48(dst_1, py_1, 0);
199  PUTRGB48(dst_2, py_2, 0);
200 
201  LOADCHROMA(1);
202  PUTRGB48(dst_2, py_2, 1);
203  PUTRGB48(dst_1, py_1, 1);
204 ENDYUV2RGBLINE(48, 1)
205  LOADCHROMA(0);
206  PUTRGB48(dst_1, py_1, 0);
207  PUTRGB48(dst_2, py_2, 0);
209 
210 YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
211  LOADCHROMA(0);
212  PUTBGR48(dst_1, py_1, 0);
213  PUTBGR48(dst_2, py_2, 0);
214 
215  LOADCHROMA(1);
216  PUTBGR48(dst_2, py_2, 1);
217  PUTBGR48(dst_1, py_1, 1);
218 
219  LOADCHROMA(2);
220  PUTBGR48(dst_1, py_1, 2);
221  PUTBGR48(dst_2, py_2, 2);
222 
223  LOADCHROMA(3);
224  PUTBGR48(dst_2, py_2, 3);
225  PUTBGR48(dst_1, py_1, 3);
226 ENDYUV2RGBLINE(48, 0)
227  LOADCHROMA(0);
228  PUTBGR48(dst_1, py_1, 0);
229  PUTBGR48(dst_2, py_2, 0);
230 
231  LOADCHROMA(1);
232  PUTBGR48(dst_2, py_2, 1);
233  PUTBGR48(dst_1, py_1, 1);
234 ENDYUV2RGBLINE(48, 1)
235  LOADCHROMA(0);
236  PUTBGR48(dst_1, py_1, 0);
237  PUTBGR48(dst_2, py_2, 0);
239 
240 YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
241  LOADCHROMA(0);
242  PUTRGB(dst_1, py_1, 0);
243  PUTRGB(dst_2, py_2, 0);
244 
245  LOADCHROMA(1);
246  PUTRGB(dst_2, py_2, 1);
247  PUTRGB(dst_1, py_1, 1);
248 
249  LOADCHROMA(2);
250  PUTRGB(dst_1, py_1, 2);
251  PUTRGB(dst_2, py_2, 2);
252 
253  LOADCHROMA(3);
254  PUTRGB(dst_2, py_2, 3);
255  PUTRGB(dst_1, py_1, 3);
256 ENDYUV2RGBLINE(8, 0)
257  LOADCHROMA(0);
258  PUTRGB(dst_1, py_1, 0);
259  PUTRGB(dst_2, py_2, 0);
260 
261  LOADCHROMA(1);
262  PUTRGB(dst_2, py_2, 1);
263  PUTRGB(dst_1, py_1, 1);
264 ENDYUV2RGBLINE(8, 1)
265  LOADCHROMA(0);
266  PUTRGB(dst_1, py_1, 0);
267  PUTRGB(dst_2, py_2, 0);
269 
270 #if HAVE_BIGENDIAN
271 YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
272 #else
273 YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
274 #endif
275  LOADCHROMA(0);
276  PUTRGBA(dst_1, py_1, pa_1, 0, 24);
277  PUTRGBA(dst_2, py_2, pa_2, 0, 24);
278 
279  LOADCHROMA(1);
280  PUTRGBA(dst_2, py_2, pa_2, 1, 24);
281  PUTRGBA(dst_1, py_1, pa_1, 1, 24);
282 
283  LOADCHROMA(2);
284  PUTRGBA(dst_1, py_1, pa_1, 2, 24);
285  PUTRGBA(dst_2, py_2, pa_2, 2, 24);
286 
287  LOADCHROMA(3);
288  PUTRGBA(dst_2, py_2, pa_2, 3, 24);
289  PUTRGBA(dst_1, py_1, pa_1, 3, 24);
290  pa_1 += 8;
291  pa_2 += 8;
292 ENDYUV2RGBLINE(8, 0)
293  LOADCHROMA(0);
294  PUTRGBA(dst_1, py_1, pa_1, 0, 24);
295  PUTRGBA(dst_2, py_2, pa_2, 0, 24);
296 
297  LOADCHROMA(1);
298  PUTRGBA(dst_2, py_2, pa_2, 1, 24);
299  PUTRGBA(dst_1, py_1, pa_1, 1, 24);
300  pa_1 += 4;
301  pa_2 += 4;
302 ENDYUV2RGBLINE(8, 1)
303  LOADCHROMA(0);
304  PUTRGBA(dst_1, py_1, pa_1, 0, 24);
305  PUTRGBA(dst_2, py_2, pa_2, 0, 24);
307 
308 #if HAVE_BIGENDIAN
309 YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
310 #else
311 YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
312 #endif
313  LOADCHROMA(0);
314  PUTRGBA(dst_1, py_1, pa_1, 0, 0);
315  PUTRGBA(dst_2, py_2, pa_2, 0, 0);
316 
317  LOADCHROMA(1);
318  PUTRGBA(dst_2, py_2, pa_2, 1, 0);
319  PUTRGBA(dst_1, py_1, pa_1, 1, 0);
320 
321  LOADCHROMA(2);
322  PUTRGBA(dst_1, py_1, pa_1, 2, 0);
323  PUTRGBA(dst_2, py_2, pa_2, 2, 0);
324 
325  LOADCHROMA(3);
326  PUTRGBA(dst_2, py_2, pa_2, 3, 0);
327  PUTRGBA(dst_1, py_1, pa_1, 3, 0);
328  pa_1 += 8;
329  pa_2 += 8;
330 ENDYUV2RGBLINE(8, 0)
331  LOADCHROMA(0);
332  PUTRGBA(dst_1, py_1, pa_1, 0, 0);
333  PUTRGBA(dst_2, py_2, pa_2, 0, 0);
334 
335  LOADCHROMA(1);
336  PUTRGBA(dst_2, py_2, pa_2, 1, 0);
337  PUTRGBA(dst_1, py_1, pa_1, 1, 0);
338  pa_1 += 4;
339  pa_2 += 4;
340 ENDYUV2RGBLINE(8, 1)
341  LOADCHROMA(0);
342  PUTRGBA(dst_1, py_1, pa_1, 0, 0);
343  PUTRGBA(dst_2, py_2, pa_2, 0, 0);
345 
346 YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
347  LOADCHROMA(0);
348  PUTRGB24(dst_1, py_1, 0);
349  PUTRGB24(dst_2, py_2, 0);
350 
351  LOADCHROMA(1);
352  PUTRGB24(dst_2, py_2, 1);
353  PUTRGB24(dst_1, py_1, 1);
354 
355  LOADCHROMA(2);
356  PUTRGB24(dst_1, py_1, 2);
357  PUTRGB24(dst_2, py_2, 2);
358 
359  LOADCHROMA(3);
360  PUTRGB24(dst_2, py_2, 3);
361  PUTRGB24(dst_1, py_1, 3);
362 ENDYUV2RGBLINE(24, 0)
363  LOADCHROMA(0);
364  PUTRGB24(dst_1, py_1, 0);
365  PUTRGB24(dst_2, py_2, 0);
366 
367  LOADCHROMA(1);
368  PUTRGB24(dst_2, py_2, 1);
369  PUTRGB24(dst_1, py_1, 1);
370 ENDYUV2RGBLINE(24, 1)
371  LOADCHROMA(0);
372  PUTRGB24(dst_1, py_1, 0);
373  PUTRGB24(dst_2, py_2, 0);
375 
376 // only trivial mods from yuv2rgb_c_24_rgb
377 YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
378  LOADCHROMA(0);
379  PUTBGR24(dst_1, py_1, 0);
380  PUTBGR24(dst_2, py_2, 0);
381 
382  LOADCHROMA(1);
383  PUTBGR24(dst_2, py_2, 1);
384  PUTBGR24(dst_1, py_1, 1);
385 
386  LOADCHROMA(2);
387  PUTBGR24(dst_1, py_1, 2);
388  PUTBGR24(dst_2, py_2, 2);
389 
390  LOADCHROMA(3);
391  PUTBGR24(dst_2, py_2, 3);
392  PUTBGR24(dst_1, py_1, 3);
393 ENDYUV2RGBLINE(24, 0)
394  LOADCHROMA(0);
395  PUTBGR24(dst_1, py_1, 0);
396  PUTBGR24(dst_2, py_2, 0);
397 
398  LOADCHROMA(1);
399  PUTBGR24(dst_2, py_2, 1);
400  PUTBGR24(dst_1, py_1, 1);
401 ENDYUV2RGBLINE(24, 1)
402  LOADCHROMA(0);
403  PUTBGR24(dst_1, py_1, 0);
404  PUTBGR24(dst_2, py_2, 0);
406 
407 YUV2RGBFUNC(yuv2rgb_c_16_ordered_dither, uint16_t, 0)
408  const uint8_t *d16 = ff_dither_2x2_8[y & 1];
409  const uint8_t *e16 = ff_dither_2x2_4[y & 1];
410  const uint8_t *f16 = ff_dither_2x2_8[(y & 1)^1];
411 
412 #define PUTRGB16(dst, src, i, o) \
413  Y = src[2 * i]; \
414  dst[2 * i] = r[Y + d16[0 + o]] + \
415  g[Y + e16[0 + o]] + \
416  b[Y + f16[0 + o]]; \
417  Y = src[2 * i + 1]; \
418  dst[2 * i + 1] = r[Y + d16[1 + o]] + \
419  g[Y + e16[1 + o]] + \
420  b[Y + f16[1 + o]];
421  LOADCHROMA(0);
422  PUTRGB16(dst_1, py_1, 0, 0);
423  PUTRGB16(dst_2, py_2, 0, 0 + 8);
424 
425  LOADCHROMA(1);
426  PUTRGB16(dst_2, py_2, 1, 2 + 8);
427  PUTRGB16(dst_1, py_1, 1, 2);
428 
429  LOADCHROMA(2);
430  PUTRGB16(dst_1, py_1, 2, 4);
431  PUTRGB16(dst_2, py_2, 2, 4 + 8);
432 
433  LOADCHROMA(3);
434  PUTRGB16(dst_2, py_2, 3, 6 + 8);
435  PUTRGB16(dst_1, py_1, 3, 6);
437 
438 YUV2RGBFUNC(yuv2rgb_c_15_ordered_dither, uint16_t, 0)
439  const uint8_t *d16 = ff_dither_2x2_8[y & 1];
440  const uint8_t *e16 = ff_dither_2x2_8[(y & 1)^1];
441 
442 #define PUTRGB15(dst, src, i, o) \
443  Y = src[2 * i]; \
444  dst[2 * i] = r[Y + d16[0 + o]] + \
445  g[Y + d16[1 + o]] + \
446  b[Y + e16[0 + o]]; \
447  Y = src[2 * i + 1]; \
448  dst[2 * i + 1] = r[Y + d16[1 + o]] + \
449  g[Y + d16[0 + o]] + \
450  b[Y + e16[1 + o]];
451  LOADCHROMA(0);
452  PUTRGB15(dst_1, py_1, 0, 0);
453  PUTRGB15(dst_2, py_2, 0, 0 + 8);
454 
455  LOADCHROMA(1);
456  PUTRGB15(dst_2, py_2, 1, 2 + 8);
457  PUTRGB15(dst_1, py_1, 1, 2);
458 
459  LOADCHROMA(2);
460  PUTRGB15(dst_1, py_1, 2, 4);
461  PUTRGB15(dst_2, py_2, 2, 4 + 8);
462 
463  LOADCHROMA(3);
464  PUTRGB15(dst_2, py_2, 3, 6 + 8);
465  PUTRGB15(dst_1, py_1, 3, 6);
467 
468 // r, g, b, dst_1, dst_2
469 YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
470  const uint8_t *d16 = ff_dither_4x4_16[y & 3];
471 
472 #define PUTRGB12(dst, src, i, o) \
473  Y = src[2 * i]; \
474  dst[2 * i] = r[Y + d16[0 + o]] + \
475  g[Y + d16[0 + o]] + \
476  b[Y + d16[0 + o]]; \
477  Y = src[2 * i + 1]; \
478  dst[2 * i + 1] = r[Y + d16[1 + o]] + \
479  g[Y + d16[1 + o]] + \
480  b[Y + d16[1 + o]];
481 
482  LOADCHROMA(0);
483  PUTRGB12(dst_1, py_1, 0, 0);
484  PUTRGB12(dst_2, py_2, 0, 0 + 8);
485 
486  LOADCHROMA(1);
487  PUTRGB12(dst_2, py_2, 1, 2 + 8);
488  PUTRGB12(dst_1, py_1, 1, 2);
489 
490  LOADCHROMA(2);
491  PUTRGB12(dst_1, py_1, 2, 4);
492  PUTRGB12(dst_2, py_2, 2, 4 + 8);
493 
494  LOADCHROMA(3);
495  PUTRGB12(dst_2, py_2, 3, 6 + 8);
496  PUTRGB12(dst_1, py_1, 3, 6);
498 
499 // r, g, b, dst_1, dst_2
500 YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
501  const uint8_t *d32 = ff_dither_8x8_32[y & 7];
502  const uint8_t *d64 = ff_dither_8x8_73[y & 7];
503 
504 #define PUTRGB8(dst, src, i, o) \
505  Y = src[2 * i]; \
506  dst[2 * i] = r[Y + d32[0 + o]] + \
507  g[Y + d32[0 + o]] + \
508  b[Y + d64[0 + o]]; \
509  Y = src[2 * i + 1]; \
510  dst[2 * i + 1] = r[Y + d32[1 + o]] + \
511  g[Y + d32[1 + o]] + \
512  b[Y + d64[1 + o]];
513 
514  LOADCHROMA(0);
515  PUTRGB8(dst_1, py_1, 0, 0);
516  PUTRGB8(dst_2, py_2, 0, 0 + 8);
517 
518  LOADCHROMA(1);
519  PUTRGB8(dst_2, py_2, 1, 2 + 8);
520  PUTRGB8(dst_1, py_1, 1, 2);
521 
522  LOADCHROMA(2);
523  PUTRGB8(dst_1, py_1, 2, 4);
524  PUTRGB8(dst_2, py_2, 2, 4 + 8);
525 
526  LOADCHROMA(3);
527  PUTRGB8(dst_2, py_2, 3, 6 + 8);
528  PUTRGB8(dst_1, py_1, 3, 6);
529 
530 ENDYUV2RGBLINE(8, 0)
531  const uint8_t *d32 = ff_dither_8x8_32[y & 7];
532  const uint8_t *d64 = ff_dither_8x8_73[y & 7];
533  LOADCHROMA(0);
534  PUTRGB8(dst_1, py_1, 0, 0);
535  PUTRGB8(dst_2, py_2, 0, 0 + 8);
536 
537  LOADCHROMA(1);
538  PUTRGB8(dst_2, py_2, 1, 2 + 8);
539  PUTRGB8(dst_1, py_1, 1, 2);
540 
541 ENDYUV2RGBLINE(8, 1)
542  const uint8_t *d32 = ff_dither_8x8_32[y & 7];
543  const uint8_t *d64 = ff_dither_8x8_73[y & 7];
544  LOADCHROMA(0);
545  PUTRGB8(dst_1, py_1, 0, 0);
546  PUTRGB8(dst_2, py_2, 0, 0 + 8);
547 
549 
550 
551 YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
552  const uint8_t * d64 = ff_dither_8x8_73[y & 7];
553  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
554  int acc;
555 
556 #define PUTRGB4D(dst, src, i, o) \
557  Y = src[2 * i]; \
558  acc = r[Y + d128[0 + o]] + \
559  g[Y + d64[0 + o]] + \
560  b[Y + d128[0 + o]]; \
561  Y = src[2 * i + 1]; \
562  acc |= (r[Y + d128[1 + o]] + \
563  g[Y + d64[1 + o]] + \
564  b[Y + d128[1 + o]]) << 4; \
565  dst[i] = acc;
566 
567  LOADCHROMA(0);
568  PUTRGB4D(dst_1, py_1, 0, 0);
569  PUTRGB4D(dst_2, py_2, 0, 0 + 8);
570 
571  LOADCHROMA(1);
572  PUTRGB4D(dst_2, py_2, 1, 2 + 8);
573  PUTRGB4D(dst_1, py_1, 1, 2);
574 
575  LOADCHROMA(2);
576  PUTRGB4D(dst_1, py_1, 2, 4);
577  PUTRGB4D(dst_2, py_2, 2, 4 + 8);
578 
579  LOADCHROMA(3);
580  PUTRGB4D(dst_2, py_2, 3, 6 + 8);
581  PUTRGB4D(dst_1, py_1, 3, 6);
582 
583 ENDYUV2RGBLINE(4, 0)
584  const uint8_t * d64 = ff_dither_8x8_73[y & 7];
585  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
586  int acc;
587  LOADCHROMA(0);
588  PUTRGB4D(dst_1, py_1, 0, 0);
589  PUTRGB4D(dst_2, py_2, 0, 0 + 8);
590 
591  LOADCHROMA(1);
592  PUTRGB4D(dst_2, py_2, 1, 2 + 8);
593  PUTRGB4D(dst_1, py_1, 1, 2);
594 
595 ENDYUV2RGBLINE(4, 1)
596  const uint8_t * d64 = ff_dither_8x8_73[y & 7];
597  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
598  int acc;
599  LOADCHROMA(0);
600  PUTRGB4D(dst_1, py_1, 0, 0);
601  PUTRGB4D(dst_2, py_2, 0, 0 + 8);
603 
604 YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
605  const uint8_t *d64 = ff_dither_8x8_73[y & 7];
606  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
607 
608 #define PUTRGB4DB(dst, src, i, o) \
609  Y = src[2 * i]; \
610  dst[2 * i] = r[Y + d128[0 + o]] + \
611  g[Y + d64[0 + o]] + \
612  b[Y + d128[0 + o]]; \
613  Y = src[2 * i + 1]; \
614  dst[2 * i + 1] = r[Y + d128[1 + o]] + \
615  g[Y + d64[1 + o]] + \
616  b[Y + d128[1 + o]];
617 
618  LOADCHROMA(0);
619  PUTRGB4DB(dst_1, py_1, 0, 0);
620  PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
621 
622  LOADCHROMA(1);
623  PUTRGB4DB(dst_2, py_2, 1, 2 + 8);
624  PUTRGB4DB(dst_1, py_1, 1, 2);
625 
626  LOADCHROMA(2);
627  PUTRGB4DB(dst_1, py_1, 2, 4);
628  PUTRGB4DB(dst_2, py_2, 2, 4 + 8);
629 
630  LOADCHROMA(3);
631  PUTRGB4DB(dst_2, py_2, 3, 6 + 8);
632  PUTRGB4DB(dst_1, py_1, 3, 6);
633 ENDYUV2RGBLINE(8, 0)
634  const uint8_t *d64 = ff_dither_8x8_73[y & 7];
635  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
636  LOADCHROMA(0);
637  PUTRGB4DB(dst_1, py_1, 0, 0);
638  PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
639 
640  LOADCHROMA(1);
641  PUTRGB4DB(dst_2, py_2, 1, 2 + 8);
642  PUTRGB4DB(dst_1, py_1, 1, 2);
643 ENDYUV2RGBLINE(8, 1)
644  const uint8_t *d64 = ff_dither_8x8_73[y & 7];
645  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
646  LOADCHROMA(0);
647  PUTRGB4DB(dst_1, py_1, 0, 0);
648  PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
650 
651 YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
652  const uint8_t *d128 = ff_dither_8x8_220[y & 7];
653  char out_1 = 0, out_2 = 0;
654  g = c->table_gU[128 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
655 
656 #define PUTRGB1(out, src, i, o) \
657  Y = src[2 * i]; \
658  out += out + g[Y + d128[0 + o]]; \
659  Y = src[2 * i + 1]; \
660  out += out + g[Y + d128[1 + o]];
661 
662  PUTRGB1(out_1, py_1, 0, 0);
663  PUTRGB1(out_2, py_2, 0, 0 + 8);
664 
665  PUTRGB1(out_2, py_2, 1, 2 + 8);
666  PUTRGB1(out_1, py_1, 1, 2);
667 
668  PUTRGB1(out_1, py_1, 2, 4);
669  PUTRGB1(out_2, py_2, 2, 4 + 8);
670 
671  PUTRGB1(out_2, py_2, 3, 6 + 8);
672  PUTRGB1(out_1, py_1, 3, 6);
673 
674  dst_1[0] = out_1;
675  dst_2[0] = out_2;
677 
679 {
680  SwsFunc t = NULL;
681 
682  if (ARCH_PPC)
683  t = ff_yuv2rgb_init_ppc(c);
684  if (ARCH_X86)
685  t = ff_yuv2rgb_init_x86(c);
686 
687  if (t)
688  return t;
689 
691  "No accelerated colorspace conversion found from %s to %s.\n",
692  av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
693 
694  switch (c->dstFormat) {
695  case AV_PIX_FMT_BGR48BE:
696  case AV_PIX_FMT_BGR48LE:
697  return yuv2rgb_c_bgr48;
698  case AV_PIX_FMT_RGB48BE:
699  case AV_PIX_FMT_RGB48LE:
700  return yuv2rgb_c_48;
701  case AV_PIX_FMT_ARGB:
702  case AV_PIX_FMT_ABGR:
703  if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat))
704  return yuva2argb_c;
705  case AV_PIX_FMT_RGBA:
706  case AV_PIX_FMT_BGRA:
707  return (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat)) ? yuva2rgba_c : yuv2rgb_c_32;
708  case AV_PIX_FMT_RGB24:
709  return yuv2rgb_c_24_rgb;
710  case AV_PIX_FMT_BGR24:
711  return yuv2rgb_c_24_bgr;
712  case AV_PIX_FMT_RGB565:
713  case AV_PIX_FMT_BGR565:
714  return yuv2rgb_c_16_ordered_dither;
715  case AV_PIX_FMT_RGB555:
716  case AV_PIX_FMT_BGR555:
717  return yuv2rgb_c_15_ordered_dither;
718  case AV_PIX_FMT_RGB444:
719  case AV_PIX_FMT_BGR444:
720  return yuv2rgb_c_12_ordered_dither;
721  case AV_PIX_FMT_RGB8:
722  case AV_PIX_FMT_BGR8:
723  return yuv2rgb_c_8_ordered_dither;
724  case AV_PIX_FMT_RGB4:
725  case AV_PIX_FMT_BGR4:
726  return yuv2rgb_c_4_ordered_dither;
729  return yuv2rgb_c_4b_ordered_dither;
731  return yuv2rgb_c_1_ordered_dither;
732  }
733  return NULL;
734 }
735 
736 static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,
737  const int64_t inc, void *y_tab)
738 {
739  int i;
740  uint8_t *y_table = y_tab;
741 
742  y_table -= elemsize * (inc >> 9);
743 
744  for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
745  int64_t cb = av_clip_uint8(i-YUVRGB_TABLE_HEADROOM)*inc;
746  table[i] = y_table + elemsize * (cb >> 16);
747  }
748 }
749 
750 static void fill_gv_table(int table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize, const int64_t inc)
751 {
752  int i;
753  int off = -(inc >> 9);
754 
755  for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
756  int64_t cb = av_clip_uint8(i-YUVRGB_TABLE_HEADROOM)*inc;
757  table[i] = elemsize * (off + (cb >> 16));
758  }
759 }
760 
761 static uint16_t roundToInt16(int64_t f)
762 {
763  int r = (f + (1 << 15)) >> 16;
764 
765  if (r < -0x7FFF)
766  return 0x8000;
767  else if (r > 0x7FFF)
768  return 0x7FFF;
769  else
770  return r;
771 }
772 
773 av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
774  int fullRange, int brightness,
775  int contrast, int saturation)
776 {
777  const int isRgb = c->dstFormat == AV_PIX_FMT_RGB32 ||
779  c->dstFormat == AV_PIX_FMT_BGR24 ||
786  c->dstFormat == AV_PIX_FMT_RGB8 ||
787  c->dstFormat == AV_PIX_FMT_RGB4 ||
790  const int isNotNe = c->dstFormat == AV_PIX_FMT_NE(RGB565LE, RGB565BE) ||
791  c->dstFormat == AV_PIX_FMT_NE(RGB555LE, RGB555BE) ||
792  c->dstFormat == AV_PIX_FMT_NE(RGB444LE, RGB444BE) ||
793  c->dstFormat == AV_PIX_FMT_NE(BGR565LE, BGR565BE) ||
794  c->dstFormat == AV_PIX_FMT_NE(BGR555LE, BGR555BE) ||
795  c->dstFormat == AV_PIX_FMT_NE(BGR444LE, BGR444BE);
796  const int bpp = c->dstFormatBpp;
797  uint8_t *y_table;
798  uint16_t *y_table16;
799  uint32_t *y_table32;
800  int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
801  const int yoffs = (fullRange ? 384 : 326) + YUVRGB_TABLE_LUMA_HEADROOM;
802  const int table_plane_size = 1024 + 2*YUVRGB_TABLE_LUMA_HEADROOM;
803 
804  int64_t crv = inv_table[0];
805  int64_t cbu = inv_table[1];
806  int64_t cgu = -inv_table[2];
807  int64_t cgv = -inv_table[3];
808  int64_t cy = 1 << 16;
809  int64_t oy = 0;
810  int64_t yb = 0;
811 
812  if (!fullRange) {
813  cy = (cy * 255) / 219;
814  oy = 16 << 16;
815  } else {
816  crv = (crv * 224) / 255;
817  cbu = (cbu * 224) / 255;
818  cgu = (cgu * 224) / 255;
819  cgv = (cgv * 224) / 255;
820  }
821 
822  cy = (cy * contrast) >> 16;
823  crv = (crv * contrast * saturation) >> 32;
824  cbu = (cbu * contrast * saturation) >> 32;
825  cgu = (cgu * contrast * saturation) >> 32;
826  cgv = (cgv * contrast * saturation) >> 32;
827  oy -= 256 * brightness;
828 
829  c->uOffset = 0x0400040004000400LL;
830  c->vOffset = 0x0400040004000400LL;
831  c->yCoeff = roundToInt16(cy * (1 << 13)) * 0x0001000100010001ULL;
832  c->vrCoeff = roundToInt16(crv * (1 << 13)) * 0x0001000100010001ULL;
833  c->ubCoeff = roundToInt16(cbu * (1 << 13)) * 0x0001000100010001ULL;
834  c->vgCoeff = roundToInt16(cgv * (1 << 13)) * 0x0001000100010001ULL;
835  c->ugCoeff = roundToInt16(cgu * (1 << 13)) * 0x0001000100010001ULL;
836  c->yOffset = roundToInt16(oy * (1 << 3)) * 0x0001000100010001ULL;
837 
838  c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy * (1 << 13));
839  c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy * (1 << 9));
840  c->yuv2rgb_v2r_coeff = (int16_t)roundToInt16(crv * (1 << 13));
841  c->yuv2rgb_v2g_coeff = (int16_t)roundToInt16(cgv * (1 << 13));
842  c->yuv2rgb_u2g_coeff = (int16_t)roundToInt16(cgu * (1 << 13));
843  c->yuv2rgb_u2b_coeff = (int16_t)roundToInt16(cbu * (1 << 13));
844 
845  //scale coefficients by cy
846  crv = ((crv * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
847  cbu = ((cbu * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
848  cgu = ((cgu * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
849  cgv = ((cgv * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
850 
851  av_freep(&c->yuvTable);
852 
853 #define ALLOC_YUV_TABLE(x) \
854  c->yuvTable = av_malloc(x); \
855  if (!c->yuvTable) \
856  return AVERROR(ENOMEM);
857  switch (bpp) {
858  case 1:
859  ALLOC_YUV_TABLE(table_plane_size);
860  y_table = c->yuvTable;
861  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
862  for (i = 0; i < table_plane_size - 110; i++) {
863  y_table[i + 110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
864  yb += cy;
865  }
866  fill_table(c->table_gU, 1, cgu, y_table + yoffs);
867  fill_gv_table(c->table_gV, 1, cgv);
868  break;
869  case 4:
870  case 4 | 128:
871  rbase = isRgb ? 3 : 0;
872  gbase = 1;
873  bbase = isRgb ? 0 : 3;
874  ALLOC_YUV_TABLE(table_plane_size * 3);
875  y_table = c->yuvTable;
876  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
877  for (i = 0; i < table_plane_size - 110; i++) {
878  int yval = av_clip_uint8((yb + 0x8000) >> 16);
879  y_table[i + 110] = (yval >> 7) << rbase;
880  y_table[i + 37 + table_plane_size] = ((yval + 43) / 85) << gbase;
881  y_table[i + 110 + 2*table_plane_size] = (yval >> 7) << bbase;
882  yb += cy;
883  }
884  fill_table(c->table_rV, 1, crv, y_table + yoffs);
885  fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
886  fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
887  fill_gv_table(c->table_gV, 1, cgv);
888  break;
889  case 8:
890  rbase = isRgb ? 5 : 0;
891  gbase = isRgb ? 2 : 3;
892  bbase = isRgb ? 0 : 6;
893  ALLOC_YUV_TABLE(table_plane_size * 3);
894  y_table = c->yuvTable;
895  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
896  for (i = 0; i < table_plane_size - 38; i++) {
897  int yval = av_clip_uint8((yb + 0x8000) >> 16);
898  y_table[i + 16] = ((yval + 18) / 36) << rbase;
899  y_table[i + 16 + table_plane_size] = ((yval + 18) / 36) << gbase;
900  y_table[i + 37 + 2*table_plane_size] = ((yval + 43) / 85) << bbase;
901  yb += cy;
902  }
903  fill_table(c->table_rV, 1, crv, y_table + yoffs);
904  fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
905  fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
906  fill_gv_table(c->table_gV, 1, cgv);
907  break;
908  case 12:
909  rbase = isRgb ? 8 : 0;
910  gbase = 4;
911  bbase = isRgb ? 0 : 8;
912  ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
913  y_table16 = c->yuvTable;
914  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
915  for (i = 0; i < table_plane_size; i++) {
916  uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
917  y_table16[i] = (yval >> 4) << rbase;
918  y_table16[i + table_plane_size] = (yval >> 4) << gbase;
919  y_table16[i + 2*table_plane_size] = (yval >> 4) << bbase;
920  yb += cy;
921  }
922  if (isNotNe)
923  for (i = 0; i < table_plane_size * 3; i++)
924  y_table16[i] = av_bswap16(y_table16[i]);
925  fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
926  fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
927  fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
928  fill_gv_table(c->table_gV, 2, cgv);
929  break;
930  case 15:
931  case 16:
932  rbase = isRgb ? bpp - 5 : 0;
933  gbase = 5;
934  bbase = isRgb ? 0 : (bpp - 5);
935  ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
936  y_table16 = c->yuvTable;
937  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
938  for (i = 0; i < table_plane_size; i++) {
939  uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
940  y_table16[i] = (yval >> 3) << rbase;
941  y_table16[i + table_plane_size] = (yval >> (18 - bpp)) << gbase;
942  y_table16[i + 2*table_plane_size] = (yval >> 3) << bbase;
943  yb += cy;
944  }
945  if (isNotNe)
946  for (i = 0; i < table_plane_size * 3; i++)
947  y_table16[i] = av_bswap16(y_table16[i]);
948  fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
949  fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
950  fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
951  fill_gv_table(c->table_gV, 2, cgv);
952  break;
953  case 24:
954  case 48:
955  ALLOC_YUV_TABLE(table_plane_size);
956  y_table = c->yuvTable;
957  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
958  for (i = 0; i < table_plane_size; i++) {
959  y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
960  yb += cy;
961  }
962  fill_table(c->table_rV, 1, crv, y_table + yoffs);
963  fill_table(c->table_gU, 1, cgu, y_table + yoffs);
964  fill_table(c->table_bU, 1, cbu, y_table + yoffs);
965  fill_gv_table(c->table_gV, 1, cgv);
966  break;
967  case 32:
968  case 64:
969  base = (c->dstFormat == AV_PIX_FMT_RGB32_1 ||
970  c->dstFormat == AV_PIX_FMT_BGR32_1) ? 8 : 0;
971  rbase = base + (isRgb ? 16 : 0);
972  gbase = base + 8;
973  bbase = base + (isRgb ? 0 : 16);
974  needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
975  if (!needAlpha)
976  abase = (base + 24) & 31;
977  ALLOC_YUV_TABLE(table_plane_size * 3 * 4);
978  y_table32 = c->yuvTable;
979  yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
980  for (i = 0; i < table_plane_size; i++) {
981  unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
982  y_table32[i] = (yval << rbase) +
983  (needAlpha ? 0 : (255u << abase));
984  y_table32[i + table_plane_size] = yval << gbase;
985  y_table32[i + 2*table_plane_size] = yval << bbase;
986  yb += cy;
987  }
988  fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
989  fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + table_plane_size);
990  fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2*table_plane_size);
991  fill_gv_table(c->table_gV, 4, cgv);
992  break;
993  default:
994  if(!isPlanar(c->dstFormat) || bpp <= 24)
995  av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
996  return -1;
997  }
998  return 0;
999 }
uint64_t vrCoeff
dst_1[0]
Definition: yuv2rgb.c:674
#define NULL
Definition: coverity.c:32
char out_2
Definition: yuv2rgb.c:653
#define YUVRGB_TABLE_HEADROOM
pa_1
Definition: yuv2rgb.c:290
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in ...
Definition: pixfmt.h:80
const uint8_t * e16
Definition: yuv2rgb.c:409
int acc
Definition: yuv2rgb.c:554
const uint8_t ff_dither_2x2_8[][8]
Definition: output.c:45
av_cold SwsFunc ff_yuv2rgb_init_x86(SwsContext *c)
Definition: yuv2rgb.c:72
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined ...
Definition: pixfmt.h:104
uint8_t * table_bU[256+2 *YUVRGB_TABLE_HEADROOM]
#define av_bswap16
Definition: bswap.h:31
int dstFormatBpp
Number of bits per pixel of the destination pixel format.
#define ALLOC_YUV_TABLE(x)
#define PUTRGB15(dst, src, i, o)
Definition: yuv2rgb.c:442
packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), big-endian, X=unused/undefined
Definition: pixfmt.h:136
#define PUTBGR24(dst, src, i)
Definition: yuv2rgb.c:93
#define AV_PIX_FMT_RGB444
Definition: pixfmt.h:357
const uint8_t ff_dither_8x8_220[][8]
Definition: output.c:84
packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in ...
Definition: pixfmt.h:83
uint64_t ubCoeff
static void fill_table(uint8_t *table[256+2 *YUVRGB_TABLE_HEADROOM], const int elemsize, const int64_t inc, void *y_tab)
Definition: yuv2rgb.c:736
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
Definition: pixfmt.h:102
packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
Definition: pixfmt.h:81
const uint8_t ff_dither_8x8_32[][8]
Definition: output.c:59
#define PUTRGB(dst, src, i)
Definition: yuv2rgb.c:77
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:112
const uint8_t ff_dither_2x2_4[][8]
Definition: output.c:39
uint8_t
#define av_cold
Definition: attributes.h:82
const uint8_t ff_dither_4x4_16[][8]
Definition: output.c:51
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:99
static void fill_gv_table(int table[256+2 *YUVRGB_TABLE_HEADROOM], const int elemsize, const int64_t inc)
Definition: yuv2rgb.c:750
packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), little-endian, X=unused/undefined ...
Definition: pixfmt.h:135
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:343
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
Definition: pixfmt.h:101
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:90
#define PUTRGB16(dst, src, i, o)
Definition: yuv2rgb.c:412
uint64_t yOffset
external API header
enum AVPixelFormat dstFormat
Destination pixel format.
#define isALPHA(x)
Definition: swscale.c:51
uint8_t * table_gU[256+2 *YUVRGB_TABLE_HEADROOM]
#define PUTRGBA(dst, ysrc, asrc, i, s)
Definition: yuv2rgb.c:103
#define av_log(a,...)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AV_PIX_FMT_BGR32_1
Definition: pixfmt.h:345
#define AV_PIX_FMT_NE(be, le)
Definition: pixfmt.h:339
const int32_t ff_yuv2rgb_coeffs[11][4]
Definition: yuv2rgb.c:49
#define PUTBGR48(dst, src, i)
Definition: yuv2rgb.c:119
const uint8_t * d64
Definition: yuv2rgb.c:502
static const struct endianess table[]
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:91
const char * r
Definition: vf_curves.c:111
g
Definition: yuv2rgb.c:654
#define YUVRGB_TABLE_LUMA_HEADROOM
#define ENDYUV2RGBFUNC()
Definition: yuv2rgb.c:170
uint64_t ugCoeff
#define SWS_CS_DEFAULT
Definition: swscale.h:95
#define FFMAX(a, b)
Definition: common.h:94
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:88
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:145
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:89
#define YUV2RGBFUNC(func_name, dst_type, alpha)
Definition: yuv2rgb.c:129
static uint16_t roundToInt16(int64_t f)
Definition: yuv2rgb.c:761
packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
Definition: pixfmt.h:84
uint64_t vgCoeff
uint64_t uOffset
int32_t
int table_gV[256+2 *YUVRGB_TABLE_HEADROOM]
const int * sws_getCoefficients(int colorspace)
Return a pointer to yuv<->rgb coefficients for the given colorspace suitable for sws_setColorspaceDet...
Definition: yuv2rgb.c:63
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
uint8_t * table_rV[256+2 *YUVRGB_TABLE_HEADROOM]
#define PUTRGB4D(dst, src, i, o)
Definition: yuv2rgb.c:556
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:144
av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
Definition: yuv2rgb.c:773
const uint8_t * d16
Definition: yuv2rgb.c:408
#define AV_PIX_FMT_BGR555
Definition: pixfmt.h:361
const uint8_t * f16
Definition: yuv2rgb.c:410
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition: pixfmt.h:79
#define CLOSEYUV2RGBFUNC(dst_delta)
Definition: yuv2rgb.c:176
SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
Definition: yuv2rgb.c:678
static av_always_inline int isPlanar(enum AVPixelFormat pix_fmt)
#define PUTRGB12(dst, src, i, o)
Definition: yuv2rgb.c:472
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:342
const uint8_t ff_dither_8x8_73[][8]
Definition: output.c:71
int(* SwsFunc)(struct SwsContext *context, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
byte swapping routines
const uint8_t * d32
Definition: yuv2rgb.c:501
#define ENDYUV2RGBLINE(dst_delta, ss)
Definition: yuv2rgb.c:159
pa_2
Definition: yuv2rgb.c:291
#define AV_PIX_FMT_BGR565
Definition: pixfmt.h:360
av_cold SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c)
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian , X=unused/undefined
Definition: pixfmt.h:103
#define PUTRGB48(dst, src, i)
Definition: yuv2rgb.c:109
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb...
Definition: pixfmt.h:72
#define PUTRGB4DB(dst, src, i, o)
Definition: yuv2rgb.c:608
static double c[64]
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:98
#define PUTRGB8(dst, src, i, o)
Definition: yuv2rgb.c:504
#define AV_PIX_FMT_BGR444
Definition: pixfmt.h:362
enum AVPixelFormat srcFormat
Source pixel format.
const uint8_t * d128
Definition: yuv2rgb.c:553
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
Definition: pixfmt.h:82
#define AV_PIX_FMT_RGB555
Definition: pixfmt.h:356
#define PUTRGB1(out, src, i, o)
Definition: yuv2rgb.c:656
#define AV_PIX_FMT_RGB32_1
Definition: pixfmt.h:343
char out_1
Definition: yuv2rgb.c:653
uint64_t yCoeff
#define AV_PIX_FMT_RGB565
Definition: pixfmt.h:355
#define LOADCHROMA(i)
Definition: yuv2rgb.c:70
#define av_uninit(x)
Definition: attributes.h:148
#define av_freep(p)
dst_2[0]
Definition: yuv2rgb.c:675
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:2279
uint64_t vOffset
#define PUTRGB24(dst, src, i)
Definition: yuv2rgb.c:83