forked from FFmpeg/FFmpeg
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathyuv2rgb.c
961 lines (893 loc) · 45.4 KB
/
yuv2rgb.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
/*
* software YUV to RGB converter
*
* Copyright (C) 2009 Konstantin Shishkov
*
* 1,4,8bpp support and context / deglobalize stuff
* by Michael Niedermayer ([email protected])
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stddef.h>
#include <stdint.h>
#include "libavutil/bswap.h"
#include "libavutil/mem.h"
#include "config.h"
#include "swscale.h"
#include "swscale_internal.h"
#include "libavutil/pixdesc.h"
/* Color space conversion coefficients for YCbCr -> RGB mapping.
*
* Entries are {crv, cbu, cgu, cgv}
*
* crv = (255 / 224) * 65536 * (1 - cr) / 0.5
* cbu = (255 / 224) * 65536 * (1 - cb) / 0.5
* cgu = (255 / 224) * 65536 * (cb / cg) * (1 - cb) / 0.5
* cgv = (255 / 224) * 65536 * (cr / cg) * (1 - cr) / 0.5
*
* where Y = cr * R + cg * G + cb * B and cr + cg + cb = 1.
*/
const int32_t ff_yuv2rgb_coeffs[11][4] = {
{ 104597, 132201, 25675, 53279 }, /* no sequence_display_extension */
{ 117489, 138438, 13975, 34925 }, /* ITU-R Rec. 709 (1990) */
{ 104597, 132201, 25675, 53279 }, /* unspecified */
{ 104597, 132201, 25675, 53279 }, /* reserved */
{ 104448, 132798, 24759, 53109 }, /* FCC */
{ 104597, 132201, 25675, 53279 }, /* ITU-R Rec. 624-4 System B, G */
{ 104597, 132201, 25675, 53279 }, /* SMPTE 170M */
{ 117579, 136230, 16907, 35559 }, /* SMPTE 240M (1987) */
{ 0 }, /* YCgCo */
{ 110013, 140363, 12277, 42626 }, /* Bt-2020-NCL */
{ 110013, 140363, 12277, 42626 }, /* Bt-2020-CL */
};
const int *sws_getCoefficients(int colorspace)
{
if (colorspace > 10 || colorspace < 0 || colorspace == 8)
colorspace = SWS_CS_DEFAULT;
return ff_yuv2rgb_coeffs[colorspace];
}
#define LOADCHROMA(l, i) \
U = pu_##l[i]; \
V = pv_##l[i]; \
r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \
g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
#define PUTRGB(l, i, abase) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y] + g[Y] + b[Y]; \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y] + g[Y] + b[Y];
#define PUTRGB24(l, i, abase) \
Y = py_##l[2 * i]; \
dst_##l[6 * i + 0] = r[Y]; \
dst_##l[6 * i + 1] = g[Y]; \
dst_##l[6 * i + 2] = b[Y]; \
Y = py_##l[2 * i + 1]; \
dst_##l[6 * i + 3] = r[Y]; \
dst_##l[6 * i + 4] = g[Y]; \
dst_##l[6 * i + 5] = b[Y];
#define PUTBGR24(l, i, abase) \
Y = py_##l[2 * i]; \
dst_##l[6 * i + 0] = b[Y]; \
dst_##l[6 * i + 1] = g[Y]; \
dst_##l[6 * i + 2] = r[Y]; \
Y = py_##l[2 * i + 1]; \
dst_##l[6 * i + 3] = b[Y]; \
dst_##l[6 * i + 4] = g[Y]; \
dst_##l[6 * i + 5] = r[Y];
#define PUTRGBA(l, i, abase) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y] + g[Y] + b[Y] + ((uint32_t)(pa_##l[2 * i]) << abase); \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y] + g[Y] + b[Y] + ((uint32_t)(pa_##l[2 * i + 1]) << abase);
#define PUTRGB48(l, i, abase) \
Y = py_##l[ 2 * i]; \
dst_##l[12 * i + 0] = dst_##l[12 * i + 1] = r[Y]; \
dst_##l[12 * i + 2] = dst_##l[12 * i + 3] = g[Y]; \
dst_##l[12 * i + 4] = dst_##l[12 * i + 5] = b[Y]; \
Y = py_##l[ 2 * i + 1]; \
dst_##l[12 * i + 6] = dst_##l[12 * i + 7] = r[Y]; \
dst_##l[12 * i + 8] = dst_##l[12 * i + 9] = g[Y]; \
dst_##l[12 * i + 10] = dst_##l[12 * i + 11] = b[Y];
#define PUTBGR48(l, i, abase) \
Y = py_##l[2 * i]; \
dst_##l[12 * i + 0] = dst_##l[12 * i + 1] = b[Y]; \
dst_##l[12 * i + 2] = dst_##l[12 * i + 3] = g[Y]; \
dst_##l[12 * i + 4] = dst_##l[12 * i + 5] = r[Y]; \
Y = py_##l[2 * i + 1]; \
dst_##l[12 * i + 6] = dst_##l[12 * i + 7] = b[Y]; \
dst_##l[12 * i + 8] = dst_##l[12 * i + 9] = g[Y]; \
dst_##l[12 * i + 10] = dst_##l[12 * i + 11] = r[Y];
#define PUTGBRP(l, i, abase) \
Y = py_##l[2 * i]; \
dst_##l [2 * i + 0] = g[Y]; \
dst1_##l[2 * i + 0] = b[Y]; \
dst2_##l[2 * i + 0] = r[Y]; \
Y = py_##l[2 * i + 1]; \
dst_##l [2 * i + 1] = g[Y]; \
dst1_##l[2 * i + 1] = b[Y]; \
dst2_##l[2 * i + 1] = r[Y];
#define YUV2RGBFUNC(func_name, dst_type, alpha, yuv422, nb_dst_planes) \
static int func_name(SwsInternal *c, const uint8_t *const src[], \
const int srcStride[], int srcSliceY, int srcSliceH, \
uint8_t *const dst[], const int dstStride[]) \
{ \
int y; \
\
for (y = 0; y < srcSliceH; y += 2) { \
int yd = y + srcSliceY; \
dst_type *dst_1 = \
(dst_type *)(dst[0] + (yd) * dstStride[0]); \
dst_type *dst_2 = \
(dst_type *)(dst[0] + (yd + 1) * dstStride[0]); \
dst_type av_unused *dst1_1, *dst1_2, *dst2_1, *dst2_2; \
dst_type av_unused *r, *g, *b; \
const uint8_t *py_1 = src[0] + y * srcStride[0]; \
const uint8_t *py_2 = py_1 + srcStride[0]; \
const uint8_t av_unused *pu_1 = src[1] + (y >> !yuv422) * srcStride[1]; \
const uint8_t av_unused *pv_1 = src[2] + (y >> !yuv422) * srcStride[2]; \
const uint8_t av_unused *pu_2, *pv_2; \
const uint8_t av_unused *pa_1, *pa_2; \
unsigned int h_size = c->opts.dst_w >> 3; \
if (nb_dst_planes > 1) { \
dst1_1 = (dst_type *)(dst[1] + (yd) * dstStride[1]); \
dst1_2 = (dst_type *)(dst[1] + (yd + 1) * dstStride[1]); \
dst2_1 = (dst_type *)(dst[2] + (yd) * dstStride[2]); \
dst2_2 = (dst_type *)(dst[2] + (yd + 1) * dstStride[2]); \
} \
if (yuv422) { \
pu_2 = pu_1 + srcStride[1]; \
pv_2 = pv_1 + srcStride[2]; \
} \
if (alpha) { \
pa_1 = src[3] + y * srcStride[3]; \
pa_2 = pa_1 + srcStride[3]; \
} \
while (h_size--) { \
int av_unused U, V, Y; \
#define ENDYUV2RGBLINE(dst_delta, ss, alpha, yuv422, nb_dst_planes) \
pu_1 += 4 >> ss; \
pv_1 += 4 >> ss; \
if (yuv422) { \
pu_2 += 4 >> ss; \
pv_2 += 4 >> ss; \
} \
py_1 += 8 >> ss; \
py_2 += 8 >> ss; \
if (alpha) { \
pa_1 += 8 >> ss; \
pa_2 += 8 >> ss; \
} \
dst_1 += dst_delta >> ss; \
dst_2 += dst_delta >> ss; \
if (nb_dst_planes > 1) { \
dst1_1 += dst_delta >> ss; \
dst1_2 += dst_delta >> ss; \
dst2_1 += dst_delta >> ss; \
dst2_2 += dst_delta >> ss; \
} \
} \
if (c->opts.dst_w & (4 >> ss)) { \
int av_unused Y, U, V; \
#define ENDYUV2RGBFUNC() \
} \
} \
return srcSliceH; \
}
#define YUV420FUNC(func_name, dst_type, alpha, abase, PUTFUNC, dst_delta, nb_dst_planes) \
YUV2RGBFUNC(func_name, dst_type, alpha, 0, nb_dst_planes) \
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, abase); \
PUTFUNC(2, 0, abase); \
\
LOADCHROMA(1, 1); \
PUTFUNC(2, 1, abase); \
PUTFUNC(1, 1, abase); \
\
LOADCHROMA(1, 2); \
PUTFUNC(1, 2, abase); \
PUTFUNC(2, 2, abase); \
\
LOADCHROMA(1, 3); \
PUTFUNC(2, 3, abase); \
PUTFUNC(1, 3, abase); \
ENDYUV2RGBLINE(dst_delta, 0, alpha, 0, nb_dst_planes) \
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, abase); \
PUTFUNC(2, 0, abase); \
\
LOADCHROMA(1, 1); \
PUTFUNC(2, 1, abase); \
PUTFUNC(1, 1, abase); \
ENDYUV2RGBLINE(dst_delta, 1, alpha, 0, nb_dst_planes) \
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, abase); \
PUTFUNC(2, 0, abase); \
ENDYUV2RGBFUNC()
#define YUV422FUNC(func_name, dst_type, alpha, abase, PUTFUNC, dst_delta, nb_dst_planes) \
YUV2RGBFUNC(func_name, dst_type, alpha, 1, nb_dst_planes) \
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, abase); \
\
LOADCHROMA(2, 0); \
PUTFUNC(2, 0, abase); \
\
LOADCHROMA(2, 1); \
PUTFUNC(2, 1, abase); \
\
LOADCHROMA(1, 1); \
PUTFUNC(1, 1, abase); \
\
LOADCHROMA(1, 2); \
PUTFUNC(1, 2, abase); \
\
LOADCHROMA(2, 2); \
PUTFUNC(2, 2, abase); \
\
LOADCHROMA(2, 3); \
PUTFUNC(2, 3, abase); \
\
LOADCHROMA(1, 3); \
PUTFUNC(1, 3, abase); \
ENDYUV2RGBLINE(dst_delta, 0, alpha, 1, nb_dst_planes) \
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, abase); \
\
LOADCHROMA(2, 0); \
PUTFUNC(2, 0, abase); \
\
LOADCHROMA(2, 1); \
PUTFUNC(2, 1, abase); \
\
LOADCHROMA(1, 1); \
PUTFUNC(1, 1, abase); \
ENDYUV2RGBLINE(dst_delta, 1, alpha, 1, nb_dst_planes) \
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, abase); \
\
LOADCHROMA(2, 0); \
PUTFUNC(2, 0, abase); \
ENDYUV2RGBFUNC()
#define YUV420FUNC_DITHER(func_name, dst_type, LOADDITHER, PUTFUNC, dst_delta) \
YUV2RGBFUNC(func_name, dst_type, 0, 0, 1) \
LOADDITHER \
\
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, 0); \
PUTFUNC(2, 0, 0 + 8); \
\
LOADCHROMA(1, 1); \
PUTFUNC(2, 1, 2 + 8); \
PUTFUNC(1, 1, 2); \
\
LOADCHROMA(1, 2); \
PUTFUNC(1, 2, 4); \
PUTFUNC(2, 2, 4 + 8); \
\
LOADCHROMA(1, 3); \
PUTFUNC(2, 3, 6 + 8); \
PUTFUNC(1, 3, 6); \
ENDYUV2RGBLINE(dst_delta, 0, 0, 0, 1) \
LOADDITHER \
\
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, 0); \
PUTFUNC(2, 0, 0 + 8); \
\
LOADCHROMA(1, 1); \
PUTFUNC(2, 1, 2 + 8); \
PUTFUNC(1, 1, 2); \
ENDYUV2RGBLINE(dst_delta, 1, 0, 0, 1) \
LOADDITHER \
\
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, 0); \
PUTFUNC(2, 0, 0 + 8); \
ENDYUV2RGBFUNC()
#define YUV422FUNC_DITHER(func_name, dst_type, LOADDITHER, PUTFUNC, dst_delta) \
YUV2RGBFUNC(func_name, dst_type, 0, 1, 1) \
LOADDITHER \
\
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, 0); \
\
LOADCHROMA(2, 0); \
PUTFUNC(2, 0, 0 + 8); \
\
LOADCHROMA(2, 1); \
PUTFUNC(2, 1, 2 + 8); \
\
LOADCHROMA(1, 1); \
PUTFUNC(1, 1, 2); \
\
LOADCHROMA(1, 2); \
PUTFUNC(1, 2, 4); \
\
LOADCHROMA(2, 2); \
PUTFUNC(2, 2, 4 + 8); \
\
LOADCHROMA(2, 3); \
PUTFUNC(2, 3, 6 + 8); \
\
LOADCHROMA(1, 3); \
PUTFUNC(1, 3, 6); \
ENDYUV2RGBLINE(dst_delta, 0, 0, 1, 1) \
LOADDITHER \
\
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, 0); \
\
LOADCHROMA(2, 0); \
PUTFUNC(2, 0, 0 + 8); \
\
LOADCHROMA(2, 1); \
PUTFUNC(2, 1, 2 + 8); \
\
LOADCHROMA(1, 1); \
PUTFUNC(1, 1, 2); \
ENDYUV2RGBLINE(dst_delta, 1, 0, 1, 1) \
LOADDITHER \
\
LOADCHROMA(1, 0); \
PUTFUNC(1, 0, 0); \
\
LOADCHROMA(2, 0); \
PUTFUNC(2, 0, 0 + 8); \
ENDYUV2RGBFUNC()
#define LOADDITHER16 \
const uint8_t *d16 = ff_dither_2x2_8[y & 1]; \
const uint8_t *e16 = ff_dither_2x2_4[y & 1]; \
const uint8_t *f16 = ff_dither_2x2_8[(y & 1)^1];
#define PUTRGB16(l, i, o) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y + d16[0 + o]] + \
g[Y + e16[0 + o]] + \
b[Y + f16[0 + o]]; \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y + d16[1 + o]] + \
g[Y + e16[1 + o]] + \
b[Y + f16[1 + o]];
#define LOADDITHER15 \
const uint8_t *d16 = ff_dither_2x2_8[y & 1]; \
const uint8_t *e16 = ff_dither_2x2_8[(y & 1)^1];
#define PUTRGB15(l, i, o) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y + d16[0 + o]] + \
g[Y + d16[1 + o]] + \
b[Y + e16[0 + o]]; \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y + d16[1 + o]] + \
g[Y + d16[0 + o]] + \
b[Y + e16[1 + o]];
#define LOADDITHER12 \
const uint8_t *d16 = ff_dither_4x4_16[y & 3];
#define PUTRGB12(l, i, o) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y + d16[0 + o]] + \
g[Y + d16[0 + o]] + \
b[Y + d16[0 + o]]; \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y + d16[1 + o]] + \
g[Y + d16[1 + o]] + \
b[Y + d16[1 + o]];
#define LOADDITHER8 \
const uint8_t *d32 = ff_dither_8x8_32[yd & 7]; \
const uint8_t *d64 = ff_dither_8x8_73[yd & 7];
#define PUTRGB8(l, i, o) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y + d32[0 + o]] + \
g[Y + d32[0 + o]] + \
b[Y + d64[0 + o]]; \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y + d32[1 + o]] + \
g[Y + d32[1 + o]] + \
b[Y + d64[1 + o]];
#define LOADDITHER4D \
const uint8_t * d64 = ff_dither_8x8_73[yd & 7]; \
const uint8_t *d128 = ff_dither_8x8_220[yd & 7]; \
int acc;
#define PUTRGB4D(l, i, o) \
Y = py_##l[2 * i]; \
acc = r[Y + d128[0 + o]] + \
g[Y + d64[0 + o]] + \
b[Y + d128[0 + o]]; \
Y = py_##l[2 * i + 1]; \
acc |= (r[Y + d128[1 + o]] + \
g[Y + d64[1 + o]] + \
b[Y + d128[1 + o]]) << 4; \
dst_##l[i] = acc;
#define LOADDITHER4DB \
const uint8_t *d64 = ff_dither_8x8_73[yd & 7]; \
const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
#define PUTRGB4DB(l, i, o) \
Y = py_##l[2 * i]; \
dst_##l[2 * i] = r[Y + d128[0 + o]] + \
g[Y + d64[0 + o]] + \
b[Y + d128[0 + o]]; \
Y = py_##l[2 * i + 1]; \
dst_##l[2 * i + 1] = r[Y + d128[1 + o]] + \
g[Y + d64[1 + o]] + \
b[Y + d128[1 + o]];
YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0, 0, 1)
const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
char out_1 = 0, out_2 = 0;
g = c->table_gU[128 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
#define PUTRGB1(out, src, i, o) \
Y = src[2 * i]; \
out += out + g[Y + d128[0 + o]]; \
Y = src[2 * i + 1]; \
out += out + g[Y + d128[1 + o]];
PUTRGB1(out_1, py_1, 0, 0);
PUTRGB1(out_2, py_2, 0, 0 + 8);
PUTRGB1(out_2, py_2, 1, 2 + 8);
PUTRGB1(out_1, py_1, 1, 2);
PUTRGB1(out_1, py_1, 2, 4);
PUTRGB1(out_2, py_2, 2, 4 + 8);
PUTRGB1(out_2, py_2, 3, 6 + 8);
PUTRGB1(out_1, py_1, 3, 6);
dst_1[0] = out_1;
dst_2[0] = out_2;
py_1 += 8;
py_2 += 8;
dst_1 += 1;
dst_2 += 1;
}
if (c->opts.dst_w & 7) {
int av_unused Y, U, V;
int pixels_left = c->opts.dst_w & 7;
const uint8_t *d128 = ff_dither_8x8_220[yd & 7];
char out_1 = 0, out_2 = 0;
g = c->table_gU[128 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
#define PUTRGB1_OR00(out, src, i, o) \
if (pixels_left) { \
PUTRGB1(out, src, i, o) \
pixels_left--; \
} else { \
out <<= 2; \
}
PUTRGB1_OR00(out_1, py_1, 0, 0);
PUTRGB1_OR00(out_2, py_2, 0, 0 + 8);
PUTRGB1_OR00(out_2, py_2, 1, 2 + 8);
PUTRGB1_OR00(out_1, py_1, 1, 2);
PUTRGB1_OR00(out_1, py_1, 2, 4);
PUTRGB1_OR00(out_2, py_2, 2, 4 + 8);
PUTRGB1_OR00(out_2, py_2, 3, 6 + 8);
PUTRGB1_OR00(out_1, py_1, 3, 6);
dst_1[0] = out_1;
dst_2[0] = out_2;
ENDYUV2RGBFUNC()
// YUV420
YUV420FUNC(yuv2rgb_c_48, uint8_t, 0, 0, PUTRGB48, 48, 1)
YUV420FUNC(yuv2rgb_c_bgr48, uint8_t, 0, 0, PUTBGR48, 48, 1)
YUV420FUNC(yuv2rgb_c_32, uint32_t, 0, 0, PUTRGB, 8, 1)
#if HAVE_BIGENDIAN
YUV420FUNC(yuva2argb_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
YUV420FUNC(yuva2rgba_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
#else
YUV420FUNC(yuva2rgba_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
YUV420FUNC(yuva2argb_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
#endif
YUV420FUNC(yuv2rgb_c_24_rgb, uint8_t, 0, 0, PUTRGB24, 24, 1)
YUV420FUNC(yuv2rgb_c_24_bgr, uint8_t, 0, 0, PUTBGR24, 24, 1)
YUV420FUNC(yuv420p_gbrp_c, uint8_t, 0, 0, PUTGBRP, 8, 3)
YUV420FUNC_DITHER(yuv2rgb_c_16_ordered_dither, uint16_t, LOADDITHER16, PUTRGB16, 8)
YUV420FUNC_DITHER(yuv2rgb_c_15_ordered_dither, uint16_t, LOADDITHER15, PUTRGB15, 8)
YUV420FUNC_DITHER(yuv2rgb_c_12_ordered_dither, uint16_t, LOADDITHER12, PUTRGB12, 8)
YUV420FUNC_DITHER(yuv2rgb_c_8_ordered_dither, uint8_t, LOADDITHER8, PUTRGB8, 8)
YUV420FUNC_DITHER(yuv2rgb_c_4_ordered_dither, uint8_t, LOADDITHER4D, PUTRGB4D, 4)
YUV420FUNC_DITHER(yuv2rgb_c_4b_ordered_dither, uint8_t, LOADDITHER4DB, PUTRGB4DB, 8)
// YUV422
YUV422FUNC(yuv422p_rgb48_c, uint8_t, 0, 0, PUTRGB48, 48, 1)
YUV422FUNC(yuv422p_bgr48_c, uint8_t, 0, 0, PUTBGR48, 48, 1)
YUV422FUNC(yuv422p_rgb32_c, uint32_t, 0, 0, PUTRGB, 8, 1)
#if HAVE_BIGENDIAN
YUV422FUNC(yuva422p_argb_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
YUV422FUNC(yuva422p_rgba_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
#else
YUV422FUNC(yuva422p_rgba_c, uint32_t, 1, 24, PUTRGBA, 8, 1)
YUV422FUNC(yuva422p_argb_c, uint32_t, 1, 0, PUTRGBA, 8, 1)
#endif
YUV422FUNC(yuv422p_rgb24_c, uint8_t, 0, 0, PUTRGB24, 24, 1)
YUV422FUNC(yuv422p_bgr24_c, uint8_t, 0, 0, PUTBGR24, 24, 1)
YUV422FUNC(yuv422p_gbrp_c, uint8_t, 0, 0, PUTGBRP, 8, 3)
YUV422FUNC_DITHER(yuv422p_bgr16, uint16_t, LOADDITHER16, PUTRGB16, 8)
YUV422FUNC_DITHER(yuv422p_bgr15, uint16_t, LOADDITHER15, PUTRGB15, 8)
YUV422FUNC_DITHER(yuv422p_bgr12, uint16_t, LOADDITHER12, PUTRGB12, 8)
YUV422FUNC_DITHER(yuv422p_bgr8, uint8_t, LOADDITHER8, PUTRGB8, 8)
YUV422FUNC_DITHER(yuv422p_bgr4, uint8_t, LOADDITHER4D, PUTRGB4D, 4)
YUV422FUNC_DITHER(yuv422p_bgr4_byte, uint8_t, LOADDITHER4DB, PUTRGB4DB, 8)
SwsFunc ff_yuv2rgb_get_func_ptr(SwsInternal *c)
{
SwsFunc t = NULL;
#if ARCH_PPC
t = ff_yuv2rgb_init_ppc(c);
#elif ARCH_X86
t = ff_yuv2rgb_init_x86(c);
#elif ARCH_LOONGARCH64
t = ff_yuv2rgb_init_loongarch(c);
#endif
if (t)
return t;
av_log(c, AV_LOG_WARNING,
"No accelerated colorspace conversion found from %s to %s.\n",
av_get_pix_fmt_name(c->opts.src_format), av_get_pix_fmt_name(c->opts.dst_format));
if (c->opts.src_format == AV_PIX_FMT_YUV422P) {
switch (c->opts.dst_format) {
case AV_PIX_FMT_BGR48BE:
case AV_PIX_FMT_BGR48LE:
return yuv422p_bgr48_c;
case AV_PIX_FMT_RGB48BE:
case AV_PIX_FMT_RGB48LE:
return yuv422p_rgb48_c;
case AV_PIX_FMT_ARGB:
case AV_PIX_FMT_ABGR:
if (CONFIG_SWSCALE_ALPHA && isALPHA(c->opts.src_format))
return yuva422p_argb_c;
case AV_PIX_FMT_RGBA:
case AV_PIX_FMT_BGRA:
return (CONFIG_SWSCALE_ALPHA && isALPHA(c->opts.src_format)) ? yuva422p_rgba_c : yuv422p_rgb32_c;
case AV_PIX_FMT_RGB24:
return yuv422p_rgb24_c;
case AV_PIX_FMT_BGR24:
return yuv422p_bgr24_c;
case AV_PIX_FMT_RGB565:
case AV_PIX_FMT_BGR565:
return yuv422p_bgr16;
case AV_PIX_FMT_RGB555:
case AV_PIX_FMT_BGR555:
return yuv422p_bgr15;
case AV_PIX_FMT_RGB444:
case AV_PIX_FMT_BGR444:
return yuv422p_bgr12;
case AV_PIX_FMT_RGB8:
case AV_PIX_FMT_BGR8:
return yuv422p_bgr8;
case AV_PIX_FMT_RGB4:
case AV_PIX_FMT_BGR4:
return yuv422p_bgr4;
case AV_PIX_FMT_RGB4_BYTE:
case AV_PIX_FMT_BGR4_BYTE:
return yuv422p_bgr4_byte;
case AV_PIX_FMT_MONOBLACK:
return yuv2rgb_c_1_ordered_dither;
case AV_PIX_FMT_GBRP:
return yuv422p_gbrp_c;
}
} else {
switch (c->opts.dst_format) {
case AV_PIX_FMT_BGR48BE:
case AV_PIX_FMT_BGR48LE:
return yuv2rgb_c_bgr48;
case AV_PIX_FMT_RGB48BE:
case AV_PIX_FMT_RGB48LE:
return yuv2rgb_c_48;
case AV_PIX_FMT_ARGB:
case AV_PIX_FMT_ABGR:
if (CONFIG_SWSCALE_ALPHA && isALPHA(c->opts.src_format))
return yuva2argb_c;
case AV_PIX_FMT_RGBA:
case AV_PIX_FMT_BGRA:
return (CONFIG_SWSCALE_ALPHA && isALPHA(c->opts.src_format)) ? yuva2rgba_c : yuv2rgb_c_32;
case AV_PIX_FMT_RGB24:
return yuv2rgb_c_24_rgb;
case AV_PIX_FMT_BGR24:
return yuv2rgb_c_24_bgr;
case AV_PIX_FMT_RGB565:
case AV_PIX_FMT_BGR565:
return yuv2rgb_c_16_ordered_dither;
case AV_PIX_FMT_RGB555:
case AV_PIX_FMT_BGR555:
return yuv2rgb_c_15_ordered_dither;
case AV_PIX_FMT_RGB444:
case AV_PIX_FMT_BGR444:
return yuv2rgb_c_12_ordered_dither;
case AV_PIX_FMT_RGB8:
case AV_PIX_FMT_BGR8:
return yuv2rgb_c_8_ordered_dither;
case AV_PIX_FMT_RGB4:
case AV_PIX_FMT_BGR4:
return yuv2rgb_c_4_ordered_dither;
case AV_PIX_FMT_RGB4_BYTE:
case AV_PIX_FMT_BGR4_BYTE:
return yuv2rgb_c_4b_ordered_dither;
case AV_PIX_FMT_MONOBLACK:
return yuv2rgb_c_1_ordered_dither;
case AV_PIX_FMT_GBRP:
return yuv420p_gbrp_c;
}
}
return NULL;
}
static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,
const int64_t inc, void *y_tab)
{
int i;
uint8_t *y_table = y_tab;
y_table -= elemsize * (inc >> 9);
for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
int64_t cb = av_clip_uint8(i-YUVRGB_TABLE_HEADROOM)*inc;
table[i] = y_table + elemsize * (cb >> 16);
}
}
static void fill_gv_table(int table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize, const int64_t inc)
{
int i;
int off = -(inc >> 9);
for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
int64_t cb = av_clip_uint8(i-YUVRGB_TABLE_HEADROOM)*inc;
table[i] = elemsize * (off + (cb >> 16));
}
}
static uint16_t roundToInt16(int64_t f)
{
int r = (f + (1 << 15)) >> 16;
if (r < -0x7FFF)
return 0x8000;
else if (r > 0x7FFF)
return 0x7FFF;
else
return r;
}
av_cold int ff_yuv2rgb_c_init_tables(SwsInternal *c, const int inv_table[4],
int fullRange, int brightness,
int contrast, int saturation)
{
const int isRgb = c->opts.dst_format == AV_PIX_FMT_RGB32 ||
c->opts.dst_format == AV_PIX_FMT_RGB32_1 ||
c->opts.dst_format == AV_PIX_FMT_BGR24 ||
c->opts.dst_format == AV_PIX_FMT_RGB565BE ||
c->opts.dst_format == AV_PIX_FMT_RGB565LE ||
c->opts.dst_format == AV_PIX_FMT_RGB555BE ||
c->opts.dst_format == AV_PIX_FMT_RGB555LE ||
c->opts.dst_format == AV_PIX_FMT_RGB444BE ||
c->opts.dst_format == AV_PIX_FMT_RGB444LE ||
c->opts.dst_format == AV_PIX_FMT_X2RGB10BE ||
c->opts.dst_format == AV_PIX_FMT_X2RGB10LE ||
c->opts.dst_format == AV_PIX_FMT_RGB8 ||
c->opts.dst_format == AV_PIX_FMT_RGB4 ||
c->opts.dst_format == AV_PIX_FMT_RGB4_BYTE ||
c->opts.dst_format == AV_PIX_FMT_MONOBLACK;
const int isNotNe = c->opts.dst_format == AV_PIX_FMT_NE(RGB565LE, RGB565BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(RGB555LE, RGB555BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(RGB444LE, RGB444BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(BGR565LE, BGR565BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(BGR555LE, BGR555BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(BGR444LE, BGR444BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(X2RGB10LE, X2RGB10BE) ||
c->opts.dst_format == AV_PIX_FMT_NE(X2BGR10LE, X2BGR10BE);
const int bpp = c->dstFormatBpp;
uint8_t *y_table;
uint16_t *y_table16;
uint32_t *y_table32;
int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
const int yoffs = (fullRange ? 384 : 326) + YUVRGB_TABLE_LUMA_HEADROOM;
const int table_plane_size = 1024 + 2*YUVRGB_TABLE_LUMA_HEADROOM;
int64_t crv = inv_table[0];
int64_t cbu = inv_table[1];
int64_t cgu = -inv_table[2];
int64_t cgv = -inv_table[3];
int64_t cy = 1 << 16;
int64_t oy = 0;
int64_t yb = 0;
if (!fullRange) {
cy = (cy * 255) / 219;
oy = 16 << 16;
} else {
crv = (crv * 224) / 255;
cbu = (cbu * 224) / 255;
cgu = (cgu * 224) / 255;
cgv = (cgv * 224) / 255;
}
cy = (cy * contrast) >> 16;
crv = (crv * contrast * saturation) >> 32;
cbu = (cbu * contrast * saturation) >> 32;
cgu = (cgu * contrast * saturation) >> 32;
cgv = (cgv * contrast * saturation) >> 32;
oy -= 256LL * brightness;
c->uOffset = 0x0400040004000400LL;
c->vOffset = 0x0400040004000400LL;
c->yCoeff = roundToInt16(cy * (1 << 13)) * 0x0001000100010001ULL;
c->vrCoeff = roundToInt16(crv * (1 << 13)) * 0x0001000100010001ULL;
c->ubCoeff = roundToInt16(cbu * (1 << 13)) * 0x0001000100010001ULL;
c->vgCoeff = roundToInt16(cgv * (1 << 13)) * 0x0001000100010001ULL;
c->ugCoeff = roundToInt16(cgu * (1 << 13)) * 0x0001000100010001ULL;
c->yOffset = roundToInt16(oy * (1 << 3)) * 0x0001000100010001ULL;
c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy * (1 << 13));
c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy * (1 << 9));
c->yuv2rgb_v2r_coeff = (int16_t)roundToInt16(crv * (1 << 13));
c->yuv2rgb_v2g_coeff = (int16_t)roundToInt16(cgv * (1 << 13));
c->yuv2rgb_u2g_coeff = (int16_t)roundToInt16(cgu * (1 << 13));
c->yuv2rgb_u2b_coeff = (int16_t)roundToInt16(cbu * (1 << 13));
//scale coefficients by cy
crv = ((crv * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
cbu = ((cbu * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
cgu = ((cgu * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
cgv = ((cgv * (1 << 16)) + 0x8000) / FFMAX(cy, 1);
av_freep(&c->yuvTable);
#define ALLOC_YUV_TABLE(x) \
c->yuvTable = av_malloc(x); \
if (!c->yuvTable) \
return AVERROR(ENOMEM);
switch (bpp) {
case 1:
ALLOC_YUV_TABLE(table_plane_size);
y_table = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size - 110; i++) {
y_table[i + 110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
yb += cy;
}
fill_table(c->table_gU, 1, cgu, y_table + yoffs);
fill_gv_table(c->table_gV, 1, cgv);
break;
case 4:
case 4 | 128:
rbase = isRgb ? 3 : 0;
gbase = 1;
bbase = isRgb ? 0 : 3;
ALLOC_YUV_TABLE(table_plane_size * 3);
y_table = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size - 110; i++) {
int yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table[i + 110] = (yval >> 7) << rbase;
y_table[i + 37 + table_plane_size] = ((yval + 43) / 85) << gbase;
y_table[i + 110 + 2*table_plane_size] = (yval >> 7) << bbase;
yb += cy;
}
fill_table(c->table_rV, 1, crv, y_table + yoffs);
fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 1, cgv);
break;
case 8:
rbase = isRgb ? 5 : 0;
gbase = isRgb ? 2 : 3;
bbase = isRgb ? 0 : 6;
ALLOC_YUV_TABLE(table_plane_size * 3);
y_table = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size - 38; i++) {
int yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table[i + 16] = ((yval + 18) / 36) << rbase;
y_table[i + 16 + table_plane_size] = ((yval + 18) / 36) << gbase;
y_table[i + 37 + 2*table_plane_size] = ((yval + 43) / 85) << bbase;
yb += cy;
}
fill_table(c->table_rV, 1, crv, y_table + yoffs);
fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 1, cgv);
break;
case 12:
rbase = isRgb ? 8 : 0;
gbase = 4;
bbase = isRgb ? 0 : 8;
ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
y_table16 = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table16[i] = (yval >> 4) << rbase;
y_table16[i + table_plane_size] = (yval >> 4) << gbase;
y_table16[i + 2*table_plane_size] = (yval >> 4) << bbase;
yb += cy;
}
if (isNotNe)
for (i = 0; i < table_plane_size * 3; i++)
y_table16[i] = av_bswap16(y_table16[i]);
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 2, cgv);
break;
case 15:
case 16:
rbase = isRgb ? bpp - 5 : 0;
gbase = 5;
bbase = isRgb ? 0 : (bpp - 5);
ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
y_table16 = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table16[i] = (yval >> 3) << rbase;
y_table16[i + table_plane_size] = (yval >> (18 - bpp)) << gbase;
y_table16[i + 2*table_plane_size] = (yval >> 3) << bbase;
yb += cy;
}
if (isNotNe)
for (i = 0; i < table_plane_size * 3; i++)
y_table16[i] = av_bswap16(y_table16[i]);
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 2, cgv);
break;
case 24:
case 48:
ALLOC_YUV_TABLE(table_plane_size);
y_table = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
yb += cy;
}
fill_table(c->table_rV, 1, crv, y_table + yoffs);
fill_table(c->table_gU, 1, cgu, y_table + yoffs);
fill_table(c->table_bU, 1, cbu, y_table + yoffs);
fill_gv_table(c->table_gV, 1, cgv);
break;
case 30:
rbase = isRgb ? 20 : 0;
gbase = 10;
bbase = isRgb ? 0 : 20;
needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->opts.src_format);
if (!needAlpha)
abase = 30;
ALLOC_YUV_TABLE(table_plane_size * 3 * 4);
y_table32 = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
unsigned yval = av_clip_uintp2((yb + 0x8000) >> 14, 10);
y_table32[i]= (yval << rbase) + (needAlpha ? 0 : (255u << abase));
y_table32[i + table_plane_size] = yval << gbase;
y_table32[i + 2 * table_plane_size] = yval << bbase;
yb += cy;
}
if (isNotNe) {
for (i = 0; i < table_plane_size * 3; i++)
y_table32[i] = av_bswap32(y_table32[i]);
}
fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + table_plane_size);
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2 * table_plane_size);
fill_gv_table(c->table_gV, 4, cgv);
break;
case 32:
case 64:
base = (c->opts.dst_format == AV_PIX_FMT_RGB32_1 ||
c->opts.dst_format == AV_PIX_FMT_BGR32_1) ? 8 : 0;
rbase = base + (isRgb ? 16 : 0);
gbase = base + 8;
bbase = base + (isRgb ? 0 : 16);
needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->opts.src_format);
if (!needAlpha)
abase = (base + 24) & 31;
ALLOC_YUV_TABLE(table_plane_size * 3 * 4);
y_table32 = c->yuvTable;
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table32[i] = (yval << rbase) +
(needAlpha ? 0 : (255u << abase));
y_table32[i + table_plane_size] = yval << gbase;
y_table32[i + 2*table_plane_size] = yval << bbase;
yb += cy;
}
fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + table_plane_size);
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 4, cgv);
break;
default:
if(!isPlanar(c->opts.dst_format) || bpp <= 24)
av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
return AVERROR(EINVAL);
}
return 0;
}