FFmpeg
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utils.c
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1/*
2 * Copyright (C) 2024 Niklas Haas
3 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "config.h"
23
24#define _DEFAULT_SOURCE
25#include <inttypes.h>
26#include <math.h>
27#include <stdio.h>
28#include <string.h>
29
30#include "libavutil/attributes.h"
31#include "libavutil/avassert.h"
32#include "libavutil/cpu.h"
33#include "libavutil/csp.h"
34#include "libavutil/emms.h"
35#include "libavutil/imgutils.h"
36#include "libavutil/intreadwrite.h"
37#include "libavutil/mathematics.h"
38#include "libavutil/mem.h"
39#include "libavutil/opt.h"
40#include "libavutil/pixdesc.h"
41#include "libavutil/refstruct.h"
42#include "libavutil/slicethread.h"
43#include "libavutil/thread.h"
44#include "libavutil/aarch64/cpu.h"
45#include "libavutil/ppc/cpu.h"
46#include "libavutil/x86/cpu.h"
47#include "libavutil/loongarch/cpu.h"
48
49#include "rgb2rgb.h"
50#include "swscale.h"
51#include "swscale_internal.h"
52#include "graph.h"
53#include "jit.h"
54
55#if CONFIG_VULKAN
56#include "vulkan/ops.h"
57#endif
58
59SwsBackend ff_sws_enabled_backends(const SwsContext *ctx)
60{
61 if (ctx->backends)
62 return ctx->backends;
63
64 SwsBackend fallback = SWS_BACKEND_STABLE;
65 if (ctx->flags & SWS_UNSTABLE)
66 fallback |= SWS_BACKEND_UNSTABLE;
67
68 return fallback;
69}
70
71/**
72 * Allocate and return an SwsContext without performing initialization.
73 */
74static SwsContext *alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
75 int dstW, int dstH, enum AVPixelFormat dstFormat,
76 int flags, const double *param)
77{
78 SwsContext *sws = sws_alloc_context();
79 if (!sws)
80 return NULL;
81
82 sws->flags = flags;
83 sws->src_w = srcW;
84 sws->src_h = srcH;
85 sws->dst_w = dstW;
86 sws->dst_h = dstH;
87 sws->src_format = srcFormat;
88 sws->dst_format = dstFormat;
89
90 for (int i = 0; param && i < SWS_NUM_SCALER_PARAMS; i++)
91 sws->scaler_params[i] = param[i];
92
93 return sws;
94}
95
96int ff_shuffle_filter_coefficients(SwsInternal *c, int *filterPos,
97 int filterSize, int16_t *filter,
98 int dstW)
99{
100#if ARCH_X86_64
101 int i, j, k;
102 int cpu_flags = av_get_cpu_flags();
103 if (!filter)
104 return 0;
105 if (EXTERNAL_AVX2_FAST(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) {
106 if ((c->srcBpc == 8) && (c->dstBpc <= 14)) {
107 int16_t *filterCopy = NULL;
108 if (filterSize > 4) {
109 filterCopy = av_malloc_array(dstW, filterSize * sizeof(*filterCopy));
110 if (!filterCopy)
111 return AVERROR(ENOMEM);
112 memcpy(filterCopy, filter, dstW * filterSize * sizeof(int16_t));
113 }
114 // Do not swap filterPos for pixels which won't be processed by
115 // the main loop.
116 for (i = 0; i + 16 <= dstW; i += 16) {
117 FFSWAP(int, filterPos[i + 2], filterPos[i + 4]);
118 FFSWAP(int, filterPos[i + 3], filterPos[i + 5]);
119 FFSWAP(int, filterPos[i + 10], filterPos[i + 12]);
120 FFSWAP(int, filterPos[i + 11], filterPos[i + 13]);
121 }
122 if (filterSize > 4) {
123 // 16 pixels are processed at a time.
124 for (i = 0; i + 16 <= dstW; i += 16) {
125 // 4 filter coeffs are processed at a time.
126 for (k = 0; k + 4 <= filterSize; k += 4) {
127 for (j = 0; j < 16; ++j) {
128 int from = (i + j) * filterSize + k;
129 int to = i * filterSize + j * 4 + k * 16;
130 memcpy(&filter[to], &filterCopy[from], 4 * sizeof(int16_t));
131 }
132 }
133 }
134 // 4 pixels are processed at a time in the tail.
135 for (; i < dstW; i += 4) {
136 // 4 filter coeffs are processed at a time.
137 int rem = dstW - i >= 4 ? 4 : dstW - i;
138 for (k = 0; k + 4 <= filterSize; k += 4) {
139 for (j = 0; j < rem; ++j) {
140 int from = (i + j) * filterSize + k;
141 int to = i * filterSize + j * 4 + k * 4;
142 memcpy(&filter[to], &filterCopy[from], 4 * sizeof(int16_t));
143 }
144 }
145 }
146 }
147 av_free(filterCopy);
148 }
149 }
150#endif
151 return 0;
152}
153
154static double getSplineCoeff(double a, double b, double c, double d,
155 double dist)
156{
157 if (dist <= 1.0)
158 return ((d * dist + c) * dist + b) * dist + a;
159 else
160 return getSplineCoeff(0.0,
161 b + 2.0 * c + 3.0 * d,
162 c + 3.0 * d,
163 -b - 3.0 * c - 6.0 * d,
164 dist - 1.0);
165}
166
167static av_cold int get_local_pos(SwsInternal *s, int chr_subsample, int pos, int dir)
168{
169 if (pos == -1 || pos <= -513) {
170 pos = (128 << chr_subsample) - 128;
171 }
172 pos += 128; // relative to ideal left edge
173 return pos >> chr_subsample;
174}
175
176typedef struct {
177 int flag; ///< flag associated to the algorithm
178 const char *description; ///< human-readable description
179 int size_factor; ///< size factor used when initing the filters
180} ScaleAlgorithm;
181
182static const ScaleAlgorithm scale_algorithms[] = {
183 { SWS_AREA, "area averaging", 1 /* downscale only, for upscale it is bilinear */ },
184 { SWS_BICUBIC, "bicubic", 4 },
185 { SWS_BICUBLIN, "luma bicubic / chroma bilinear", -1 },
186 { SWS_BILINEAR, "bilinear", 2 },
187 { SWS_FAST_BILINEAR, "fast bilinear", -1 },
188 { SWS_GAUSS, "Gaussian", 8 /* infinite ;) */ },
189 { SWS_LANCZOS, "Lanczos", -1 /* custom */ },
190 { SWS_POINT, "nearest neighbor / point", -1 },
191 { SWS_SINC, "sinc", 20 /* infinite ;) */ },
192 { SWS_SPLINE, "bicubic spline", 20 /* infinite :)*/ },
193 { SWS_X, "experimental", 8 },
194};
195
196static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
197 int *outFilterSize, int xInc, int srcW,
198 int dstW, int filterAlign, int one,
199 int scaler, int flags, int cpu_flags,
200 SwsVector *srcFilter, SwsVector *dstFilter,
201 double param[SWS_NUM_SCALER_PARAMS], int srcPos, int dstPos)
202{
203 int i;
204 int filterSize;
205 int filter2Size;
206 int minFilterSize;
207 int64_t *filter = NULL;
208 int64_t *filter2 = NULL;
209 const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
210 int ret = -1;
211
212 emms_c(); // FIXME should not be required but IS (even for non-MMX versions)
213
214 // NOTE: the +3 is for the MMX(+1) / SSE(+3) scaler which reads over the end
215 if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
216 goto nomem;
217
218 if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
219 int i;
220 filterSize = 1;
221 if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
222 goto nomem;
223
224 for (i = 0; i < dstW; i++) {
225 filter[i * filterSize] = fone;
226 (*filterPos)[i] = i;
227 }
228 } else if (scaler == SWS_POINT) { // lame looking point sampling mode
229 int i;
230 int64_t xDstInSrc;
231 filterSize = 1;
232 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
233 goto nomem;
234
235 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
236 for (i = 0; i < dstW; i++) {
237 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
238
239 (*filterPos)[i] = xx;
240 filter[i] = fone;
241 xDstInSrc += xInc;
242 }
243 } else if ((xInc <= (1 << 16) && (scaler == SWS_AREA)) ||
244 (scaler == SWS_FAST_BILINEAR)) { // bilinear upscale
245 int i;
246 int64_t xDstInSrc;
247 filterSize = 2;
248 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
249 goto nomem;
250
251 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
252 for (i = 0; i < dstW; i++) {
253 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
254 int j;
255
256 (*filterPos)[i] = xx;
257 // bilinear upscale / linear interpolate / area averaging
258 for (j = 0; j < filterSize; j++) {
259 int64_t coeff = fone - FFABS((int64_t)xx * (1 << 16) - xDstInSrc) * (fone >> 16);
260 if (coeff < 0)
261 coeff = 0;
262 filter[i * filterSize + j] = coeff;
263 xx++;
264 }
265 xDstInSrc += xInc;
266 }
267 } else {
268 int64_t xDstInSrc;
269 int sizeFactor = -1;
270
271 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
272 if (scaler == scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
273 sizeFactor = scale_algorithms[i].size_factor;
274 break;
275 }
276 }
277 if (scaler == SWS_LANCZOS)
278 sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
279 av_assert0(sizeFactor > 0);
280
281 if (sizeFactor > 50) {
282 ret = AVERROR(EINVAL);
283 goto fail;
284 }
285
286 if (xInc <= 1 << 16)
287 filterSize = 1 + sizeFactor; // upscale
288 else
289 filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
290
291 filterSize = FFMIN(filterSize, srcW - 2);
292 filterSize = FFMAX(filterSize, 1);
293
294 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
295 if (!filter)
296 goto nomem;
297 xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
298 for (i = 0; i < dstW; i++) {
299 int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
300 int j;
301 (*filterPos)[i] = xx;
302 for (j = 0; j < filterSize; j++) {
303 int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
304 double floatd;
305 int64_t coeff;
306
307 if (xInc > 1 << 16)
308 d = d * dstW / srcW;
309 floatd = d * (1.0 / (1 << 30));
310
311 if (scaler == SWS_BICUBIC) {
312 int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
313 int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
314
315 if (d >= 1LL << 31) {
316 coeff = 0.0;
317 } else {
318 int64_t dd = (d * d) >> 30;
319 int64_t ddd = (dd * d) >> 30;
320
321 if (d < 1LL << 30)
322 coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
323 (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
324 (6 * (1 << 24) - 2 * B) * (1 << 30);
325 else
326 coeff = (-B - 6 * C) * ddd +
327 (6 * B + 30 * C) * dd +
328 (-12 * B - 48 * C) * d +
329 (8 * B + 24 * C) * (1 << 30);
330 }
331 coeff /= (1LL<<54)/fone;
332 } else if (scaler == SWS_X) {
333 double A = param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
334 double c;
335
336 if (floatd < 1.0)
337 c = cos(floatd * M_PI);
338 else
339 c = -1.0;
340 if (c < 0.0)
341 c = -pow(-c, A);
342 else
343 c = pow(c, A);
344 coeff = (c * 0.5 + 0.5) * fone;
345 } else if (scaler == SWS_AREA) {
346 int64_t d2 = d - (1 << 29);
347 if (d2 * xInc < -(1LL << (29 + 16)))
348 coeff = 1.0 * (1LL << (30 + 16));
349 else if (d2 * xInc < (1LL << (29 + 16)))
350 coeff = -d2 * xInc + (1LL << (29 + 16));
351 else
352 coeff = 0.0;
353 coeff *= fone >> (30 + 16);
354 } else if (scaler == SWS_GAUSS) {
355 double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
356 coeff = exp2(-p * floatd * floatd) * fone;
357 } else if (scaler == SWS_SINC) {
358 coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
359 } else if (scaler == SWS_LANCZOS) {
360 double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
361 coeff = (d ? sin(floatd * M_PI) * sin(floatd * M_PI / p) /
362 (floatd * floatd * M_PI * M_PI / p) : 1.0) * fone;
363 if (floatd > p)
364 coeff = 0;
365 } else if (scaler == SWS_BILINEAR) {
366 coeff = (1 << 30) - d;
367 if (coeff < 0)
368 coeff = 0;
369 coeff *= fone >> 30;
370 } else if (scaler == SWS_SPLINE) {
371 double p = -2.196152422706632;
372 coeff = getSplineCoeff(1.0, 0.0, p, -p - 1.0, floatd) * fone;
373 } else {
374 av_assert0(0);
375 }
376
377 filter[i * filterSize + j] = coeff;
378 xx++;
379 }
380 xDstInSrc += 2LL * xInc;
381 }
382 }
383
384 /* apply src & dst Filter to filter -> filter2
385 * av_free(filter);
386 */
387 av_assert0(filterSize > 0);
388 filter2Size = filterSize;
389 if (srcFilter)
390 filter2Size += srcFilter->length - 1;
391 if (dstFilter)
392 filter2Size += dstFilter->length - 1;
393 av_assert0(filter2Size > 0);
394 filter2 = av_calloc(dstW, filter2Size * sizeof(*filter2));
395 if (!filter2)
396 goto nomem;
397 for (i = 0; i < dstW; i++) {
398 int j, k;
399
400 if (srcFilter) {
401 for (k = 0; k < srcFilter->length; k++) {
402 for (j = 0; j < filterSize; j++)
403 filter2[i * filter2Size + k + j] +=
404 srcFilter->coeff[k] * filter[i * filterSize + j];
405 }
406 } else {
407 for (j = 0; j < filterSize; j++)
408 filter2[i * filter2Size + j] = filter[i * filterSize + j];
409 }
410 // FIXME dstFilter
411
412 (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
413 }
414 av_freep(&filter);
415
416 /* try to reduce the filter-size (step1 find size and shift left) */
417 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
418 minFilterSize = 0;
419 for (i = dstW - 1; i >= 0; i--) {
420 int min = filter2Size;
421 int j;
422 int64_t cutOff = 0.0;
423
424 /* get rid of near zero elements on the left by shifting left */
425 for (j = 0; j < filter2Size; j++) {
426 int k;
427 cutOff += FFABS(filter2[i * filter2Size]);
428
429 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
430 break;
431
432 /* preserve monotonicity because the core can't handle the
433 * filter otherwise */
434 if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
435 break;
436
437 // move filter coefficients left
438 for (k = 1; k < filter2Size; k++)
439 filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
440 filter2[i * filter2Size + k - 1] = 0;
441 (*filterPos)[i]++;
442 }
443
444 cutOff = 0;
445 /* count near zeros on the right */
446 for (j = filter2Size - 1; j > 0; j--) {
447 cutOff += FFABS(filter2[i * filter2Size + j]);
448
449 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
450 break;
451 min--;
452 }
453
454 if (min > minFilterSize)
455 minFilterSize = min;
456 }
457
458 if (PPC_ALTIVEC(cpu_flags)) {
459 // we can handle the special case 4, so we don't want to go the full 8
460 if (minFilterSize < 5)
461 filterAlign = 4;
462
463 /* We really don't want to waste our time doing useless computation, so
464 * fall back on the scalar C code for very small filters.
465 * Vectorizing is worth it only if you have a decent-sized vector. */
466 if (minFilterSize < 3)
467 filterAlign = 1;
468 }
469
470 if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX || have_neon(cpu_flags)) {
471 // special case for unscaled vertical filtering
472 if (minFilterSize == 1 && filterAlign == 2)
473 filterAlign = 1;
474 }
475
476 if (have_lasx(cpu_flags) || have_lsx(cpu_flags)) {
477 int reNum = minFilterSize & (0x07);
478
479 if (minFilterSize < 5)
480 filterAlign = 4;
481 if (reNum < 3)
482 filterAlign = 1;
483 }
484
485 av_assert0(minFilterSize > 0);
486 filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
487 av_assert0(filterSize > 0);
488 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
489 if (!filter)
490 goto nomem;
491 if (filterSize >= MAX_FILTER_SIZE * 16 /
492 ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
493 ret = RETCODE_USE_CASCADE;
494 goto fail;
495 }
496 *outFilterSize = filterSize;
497
498 if (flags & SWS_PRINT_INFO)
499 av_log(NULL, AV_LOG_VERBOSE,
500 "SwScaler: reducing / aligning filtersize %d -> %d\n",
501 filter2Size, filterSize);
502 /* try to reduce the filter-size (step2 reduce it) */
503 for (i = 0; i < dstW; i++) {
504 int j;
505
506 for (j = 0; j < filterSize; j++) {
507 if (j >= filter2Size)
508 filter[i * filterSize + j] = 0;
509 else
510 filter[i * filterSize + j] = filter2[i * filter2Size + j];
511 if ((flags & SWS_BITEXACT) && j >= minFilterSize)
512 filter[i * filterSize + j] = 0;
513 }
514 }
515
516 // FIXME try to align filterPos if possible
517
518 // fix borders
519 for (i = 0; i < dstW; i++) {
520 int j;
521 if ((*filterPos)[i] < 0) {
522 // move filter coefficients left to compensate for filterPos
523 for (j = 1; j < filterSize; j++) {
524 int left = FFMAX(j + (*filterPos)[i], 0);
525 filter[i * filterSize + left] += filter[i * filterSize + j];
526 filter[i * filterSize + j] = 0;
527 }
528 (*filterPos)[i]= 0;
529 }
530
531 if ((*filterPos)[i] + filterSize > srcW) {
532 int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
533 int64_t acc = 0;
534
535 for (j = filterSize - 1; j >= 0; j--) {
536 if ((*filterPos)[i] + j >= srcW) {
537 acc += filter[i * filterSize + j];
538 filter[i * filterSize + j] = 0;
539 }
540 }
541 for (j = filterSize - 1; j >= 0; j--) {
542 if (j < shift) {
543 filter[i * filterSize + j] = 0;
544 } else {
545 filter[i * filterSize + j] = filter[i * filterSize + j - shift];
546 }
547 }
548
549 (*filterPos)[i]-= shift;
550 filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
551 }
552 av_assert0((*filterPos)[i] >= 0);
553 av_assert0((*filterPos)[i] < srcW);
554 if ((*filterPos)[i] + filterSize > srcW) {
555 for (j = 0; j < filterSize; j++) {
556 av_assert0((*filterPos)[i] + j < srcW || !filter[i * filterSize + j]);
557 }
558 }
559 }
560
561 // Note the +1 is for the MMX scaler which reads over the end
562 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
563 *outFilter = av_calloc(dstW + 3, *outFilterSize * sizeof(**outFilter));
564 if (!*outFilter)
565 goto nomem;
566
567 /* normalize & store in outFilter */
568 for (i = 0; i < dstW; i++) {
569 int j;
570 int64_t error = 0;
571 int64_t sum = 0;
572
573 for (j = 0; j < filterSize; j++) {
574 sum += filter[i * filterSize + j];
575 }
576 sum = (sum + one / 2) / one;
577 if (!sum) {
578 av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
579 sum = 1;
580 }
581 for (j = 0; j < *outFilterSize; j++) {
582 int64_t v = filter[i * filterSize + j] + error;
583 int intV = ROUNDED_DIV(v, sum);
584 (*outFilter)[i * (*outFilterSize) + j] = intV;
585 error = v - intV * sum;
586 }
587 }
588
589 (*filterPos)[dstW + 0] =
590 (*filterPos)[dstW + 1] =
591 (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
592 * read over the end */
593 for (i = 0; i < *outFilterSize; i++) {
594 int k = (dstW - 1) * (*outFilterSize) + i;
595 (*outFilter)[k + 1 * (*outFilterSize)] =
596 (*outFilter)[k + 2 * (*outFilterSize)] =
597 (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
598 }
599
600 ret = 0;
601 goto done;
602nomem:
603 ret = AVERROR(ENOMEM);
604fail:
605 if(ret < 0)
606 av_log(NULL, ret == RETCODE_USE_CASCADE ? AV_LOG_DEBUG : AV_LOG_ERROR, "sws: initFilter failed\n");
607done:
608 av_free(filter);
609 av_free(filter2);
610 return ret;
611}
612
613static void fill_rgb2yuv_table(SwsInternal *c, const int table[4], int dstRange)
614{
615 int64_t W, V, Z, Cy, Cu, Cv;
616 int64_t vr = table[0];
617 int64_t ub = table[1];
618 int64_t ug = -table[2];
619 int64_t vg = -table[3];
620 int64_t ONE = 65536;
621 int64_t cy = ONE;
622 uint8_t *p = (uint8_t*)c->input_rgb2yuv_table;
623 int i;
624 static const int8_t map[] = {
625 BY_IDX, GY_IDX, -1 , BY_IDX, BY_IDX, GY_IDX, -1 , BY_IDX,
626 RY_IDX, -1 , GY_IDX, RY_IDX, RY_IDX, -1 , GY_IDX, RY_IDX,
627 RY_IDX, GY_IDX, -1 , RY_IDX, RY_IDX, GY_IDX, -1 , RY_IDX,
628 BY_IDX, -1 , GY_IDX, BY_IDX, BY_IDX, -1 , GY_IDX, BY_IDX,
629 BU_IDX, GU_IDX, -1 , BU_IDX, BU_IDX, GU_IDX, -1 , BU_IDX,
630 RU_IDX, -1 , GU_IDX, RU_IDX, RU_IDX, -1 , GU_IDX, RU_IDX,
631 RU_IDX, GU_IDX, -1 , RU_IDX, RU_IDX, GU_IDX, -1 , RU_IDX,
632 BU_IDX, -1 , GU_IDX, BU_IDX, BU_IDX, -1 , GU_IDX, BU_IDX,
633 BV_IDX, GV_IDX, -1 , BV_IDX, BV_IDX, GV_IDX, -1 , BV_IDX,
634 RV_IDX, -1 , GV_IDX, RV_IDX, RV_IDX, -1 , GV_IDX, RV_IDX,
635 RV_IDX, GV_IDX, -1 , RV_IDX, RV_IDX, GV_IDX, -1 , RV_IDX,
636 BV_IDX, -1 , GV_IDX, BV_IDX, BV_IDX, -1 , GV_IDX, BV_IDX,
637 RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX,
638 BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX,
639 GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 ,
640 -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX,
641 RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX,
642 BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX,
643 GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 ,
644 -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX,
645 RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX,
646 BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX,
647 GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 ,
648 -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, //23
649 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //24
650 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //25
651 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //26
652 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //27
653 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //28
654 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //29
655 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //30
656 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //31
657 BY_IDX, GY_IDX, RY_IDX, -1 , -1 , -1 , -1 , -1 , //32
658 BU_IDX, GU_IDX, RU_IDX, -1 , -1 , -1 , -1 , -1 , //33
659 BV_IDX, GV_IDX, RV_IDX, -1 , -1 , -1 , -1 , -1 , //34
660 };
661
662 dstRange = 0; //FIXME range = 1 is handled elsewhere
663
664 if (!dstRange) {
665 cy = cy * 255 / 219;
666 } else {
667 vr = vr * 224 / 255;
668 ub = ub * 224 / 255;
669 ug = ug * 224 / 255;
670 vg = vg * 224 / 255;
671 }
672 W = ROUNDED_DIV(ONE*ONE*ug, ub);
673 V = ROUNDED_DIV(ONE*ONE*vg, vr);
674 Z = ONE*ONE-W-V;
675
676 Cy = ROUNDED_DIV(cy*Z, ONE);
677 Cu = ROUNDED_DIV(ub*Z, ONE);
678 Cv = ROUNDED_DIV(vr*Z, ONE);
679
680 c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
681 c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
682 c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
683
684 c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
685 c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
686 c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
687
688 c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
689 c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
690 c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
691
692 if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
693 c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
694 c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
695 c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
696 c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
697 c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
698 c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
699 c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
700 c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
701 c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
702 }
703 for(i=0; i<FF_ARRAY_ELEMS(map); i++)
704 AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
705}
706
707#if CONFIG_SMALL
708static void init_xyz_tables(uint16_t xyzgamma_tab[4096], uint16_t xyzgammainv_tab[65536],
709 uint16_t rgbgamma_tab[65536], uint16_t rgbgammainv_tab[4096])
710#else
711static uint16_t xyzgamma_tab[4096], rgbgammainv_tab[4096];
712static uint16_t rgbgamma_tab[65536], xyzgammainv_tab[65536];
713static av_cold void init_xyz_tables(void)
714#endif
715{
716 double xyzgamma = XYZ_GAMMA;
717 double rgbgamma = 1.0 / RGB_GAMMA;
718 double xyzgammainv = 1.0 / XYZ_GAMMA;
719 double rgbgammainv = RGB_GAMMA;
720
721 /* set input gamma vectors */
722 for (int i = 0; i < 4096; i++) {
723 xyzgamma_tab[i] = lrint(pow(i / 4095.0, xyzgamma) * 65535.0);
724 rgbgammainv_tab[i] = lrint(pow(i / 4095.0, rgbgammainv) * 65535.0);
725 }
726
727 /* set output gamma vectors */
728 for (int i = 0; i < 65536; i++) {
729 rgbgamma_tab[i] = lrint(pow(i / 65535.0, rgbgamma) * 4095.0);
730 xyzgammainv_tab[i] = lrint(pow(i / 65535.0, xyzgammainv) * 4095.0);
731 }
732}
733
734av_cold int ff_sws_fill_xyztables(SwsInternal *c)
735{
736 static const int16_t xyz2rgb_matrix[3][3] = {
737 {13270, -6295, -2041},
738 {-3969, 7682, 170},
739 { 228, -835, 4329} };
740 static const int16_t rgb2xyz_matrix[3][3] = {
741 {1689, 1464, 739},
742 { 871, 2929, 296},
743 { 79, 488, 3891} };
744
745 if (c->xyz2rgb.gamma.in)
746 return 0;
747
748 memcpy(c->xyz2rgb.mat, xyz2rgb_matrix, sizeof(c->xyz2rgb.mat));
749 memcpy(c->rgb2xyz.mat, rgb2xyz_matrix, sizeof(c->rgb2xyz.mat));
750
751#if CONFIG_SMALL
752 c->xyz2rgb.gamma.in = av_malloc(sizeof(uint16_t) * 2 * (4096 + 65536));
753 if (!c->xyz2rgb.gamma.in)
754 return AVERROR(ENOMEM);
755 c->rgb2xyz.gamma.in = c->xyz2rgb.gamma.in + 4096;
756 c->xyz2rgb.gamma.out = c->rgb2xyz.gamma.in + 4096;
757 c->rgb2xyz.gamma.out = c->xyz2rgb.gamma.out + 65536;
758 init_xyz_tables(c->xyz2rgb.gamma.in, c->rgb2xyz.gamma.out,
759 c->xyz2rgb.gamma.out, c->rgb2xyz.gamma.in);
760#else
761 c->xyz2rgb.gamma.in = xyzgamma_tab;
762 c->xyz2rgb.gamma.out = rgbgamma_tab;
763 c->rgb2xyz.gamma.in = rgbgammainv_tab;
764 c->rgb2xyz.gamma.out = xyzgammainv_tab;
765
766 static AVOnce xyz_init_static_once = AV_ONCE_INIT;
767 ff_thread_once(&xyz_init_static_once, init_xyz_tables);
768#endif
769 return 0;
770}
771
772static int handle_jpeg(/* enum AVPixelFormat */ int *format)
773{
774 switch (*format) {
775 case AV_PIX_FMT_YUVJ420P:
776 *format = AV_PIX_FMT_YUV420P;
777 return 1;
778 case AV_PIX_FMT_YUVJ411P:
779 *format = AV_PIX_FMT_YUV411P;
780 return 1;
781 case AV_PIX_FMT_YUVJ422P:
782 *format = AV_PIX_FMT_YUV422P;
783 return 1;
784 case AV_PIX_FMT_YUVJ444P:
785 *format = AV_PIX_FMT_YUV444P;
786 return 1;
787 case AV_PIX_FMT_YUVJ440P:
788 *format = AV_PIX_FMT_YUV440P;
789 return 1;
790 case AV_PIX_FMT_GRAY8:
791 case AV_PIX_FMT_YA8:
792 case AV_PIX_FMT_GRAY9LE:
793 case AV_PIX_FMT_GRAY9BE:
794 case AV_PIX_FMT_GRAY10LE:
795 case AV_PIX_FMT_GRAY10BE:
796 case AV_PIX_FMT_GRAY12LE:
797 case AV_PIX_FMT_GRAY12BE:
798 case AV_PIX_FMT_GRAY14LE:
799 case AV_PIX_FMT_GRAY14BE:
800 case AV_PIX_FMT_GRAY16LE:
801 case AV_PIX_FMT_GRAY16BE:
802 case AV_PIX_FMT_YA16BE:
803 case AV_PIX_FMT_YA16LE:
804 return 1;
805 default:
806 return 0;
807 }
808}
809
810static int handle_0alpha(/* enum AVPixelFormat */ int *format)
811{
812 switch (*format) {
813 case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
814 case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
815 case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
816 case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
817 default: return 0;
818 }
819}
820
821static int handle_xyz(/* enum AVPixelFormat */ int *format)
822{
823 switch (*format) {
824 case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
825 case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
826 default: return 0;
827 }
828}
829
830static int handle_formats(SwsContext *sws)
831{
832 SwsInternal *c = sws_internal(sws);
833 c->src0Alpha |= handle_0alpha(&sws->src_format);
834 c->dst0Alpha |= handle_0alpha(&sws->dst_format);
835 c->srcXYZ |= handle_xyz(&sws->src_format);
836 c->dstXYZ |= handle_xyz(&sws->dst_format);
837 if (c->srcXYZ || c->dstXYZ)
838 return ff_sws_fill_xyztables(c);
839 else
840 return 0;
841}
842
843static int range_override_needed(enum AVPixelFormat format)
844{
845 return !isYUV(format) && !isGray(format);
846}
847
848int sws_setColorspaceDetails(SwsContext *sws, const int inv_table[4],
849 int srcRange, const int table[4], int dstRange,
850 int brightness, int contrast, int saturation)
851{
852 SwsInternal *c = sws_internal(sws);
853 const AVPixFmtDescriptor *desc_dst;
854 const AVPixFmtDescriptor *desc_src;
855 int ret, need_reinit = 0;
856
857 if (c->nb_slice_ctx) {
858 int parent_ret = 0;
859 for (int i = 0; i < c->nb_slice_ctx; i++) {
860 int ret = sws_setColorspaceDetails(c->slice_ctx[i], inv_table,
861 srcRange, table, dstRange,
862 brightness, contrast, saturation);
863 if (ret < 0)
864 parent_ret = ret;
865 }
866
867 return parent_ret;
868 }
869
870 ret = handle_formats(sws);
871 if (ret < 0)
872 return ret;
873 desc_dst = av_pix_fmt_desc_get(sws->dst_format);
874 desc_src = av_pix_fmt_desc_get(sws->src_format);
875
876 if(range_override_needed(sws->dst_format))
877 dstRange = 0;
878 if(range_override_needed(sws->src_format))
879 srcRange = 0;
880
881 if (sws->src_range != srcRange ||
882 sws->dst_range != dstRange ||
883 c->brightness != brightness ||
884 c->contrast != contrast ||
885 c->saturation != saturation ||
886 memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
887 memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
888 )
889 need_reinit = 1;
890
891 memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
892 memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
893
894
895
896 c->brightness = brightness;
897 c->contrast = contrast;
898 c->saturation = saturation;
899 sws->src_range = srcRange;
900 sws->dst_range = dstRange;
901
902 if (need_reinit)
903 ff_sws_init_range_convert(c);
904
905 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
906 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
907
908 if (c->cascaded_context[c->cascaded_mainindex])
909 return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
910
911 if (!need_reinit)
912 return 0;
913
914 if ((isYUV(sws->dst_format) || isGray(sws->dst_format)) && (isYUV(sws->src_format) || isGray(sws->src_format))) {
915 if (!c->cascaded_context[0] &&
916 memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
917 sws->src_w && sws->src_h && sws->dst_w && sws->dst_h) {
918 enum AVPixelFormat tmp_format;
919 int tmp_width, tmp_height;
920 int srcW = sws->src_w;
921 int srcH = sws->src_h;
922 int dstW = sws->dst_w;
923 int dstH = sws->dst_h;
924 int ret;
925 av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
926
927 if (isNBPS(sws->dst_format) || is16BPS(sws->dst_format)) {
928 if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
929 tmp_format = AV_PIX_FMT_BGRA64;
930 } else {
931 tmp_format = AV_PIX_FMT_BGR48;
932 }
933 } else {
934 if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
935 tmp_format = AV_PIX_FMT_BGRA;
936 } else {
937 tmp_format = AV_PIX_FMT_BGR24;
938 }
939 }
940
941 if (srcW*(int64_t)srcH > dstW*(int64_t)dstH) {
942 tmp_width = dstW;
943 tmp_height = dstH;
944 } else {
945 tmp_width = srcW;
946 tmp_height = srcH;
947 }
948
949 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
950 tmp_width, tmp_height, tmp_format, 64);
951 if (ret < 0)
952 return ret;
953
954 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, sws->src_format,
955 tmp_width, tmp_height, tmp_format,
956 sws->flags, sws->scaler_params);
957 if (!c->cascaded_context[0])
958 return -1;
959
960 c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
961 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
962 if (ret < 0)
963 return ret;
964 //we set both src and dst depending on that the RGB side will be ignored
965 sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
966 srcRange, table, dstRange,
967 brightness, contrast, saturation);
968
969 c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
970 dstW, dstH, sws->dst_format,
971 sws->flags, sws->scaler_params);
972 if (!c->cascaded_context[1])
973 return -1;
974 c->cascaded_context[1]->src_range = srcRange;
975 c->cascaded_context[1]->dst_range = dstRange;
976 ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
977 if (ret < 0)
978 return ret;
979 sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
980 srcRange, table, dstRange,
981 0, 1 << 16, 1 << 16);
982 return 0;
983 }
984 //We do not support this combination currently, we need to cascade more contexts to compensate
985 if (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
986 return -1; //AVERROR_PATCHWELCOME;
987 return 0;
988 }
989
990 if (!isYUV(sws->dst_format) && !isGray(sws->dst_format)) {
991 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
992 contrast, saturation);
993 // FIXME factorize
994
995#if ARCH_PPC
996 ff_yuv2rgb_init_tables_ppc(c, inv_table, brightness,
997 contrast, saturation);
998#endif
999 }
1000
1001 fill_rgb2yuv_table(c, table, dstRange);
1002
1003 return 0;
1004}
1005
1006int sws_getColorspaceDetails(SwsContext *sws, int **inv_table,
1007 int *srcRange, int **table, int *dstRange,
1008 int *brightness, int *contrast, int *saturation)
1009{
1010 SwsInternal *c = sws_internal(sws);
1011 if (!c)
1012 return -1;
1013
1014 if (c->nb_slice_ctx) {
1015 return sws_getColorspaceDetails(c->slice_ctx[0], inv_table, srcRange,
1016 table, dstRange, brightness, contrast,
1017 saturation);
1018 }
1019
1020 *inv_table = c->srcColorspaceTable;
1021 *table = c->dstColorspaceTable;
1022 *srcRange = range_override_needed(sws->src_format) ? 1 : sws->src_range;
1023 *dstRange = range_override_needed(sws->dst_format) ? 1 : sws->dst_range;
1024 *brightness = c->brightness;
1025 *contrast = c->contrast;
1026 *saturation = c->saturation;
1027
1028 return 0;
1029}
1030
1031SwsContext *sws_alloc_context(void)
1032{
1033 SwsInternal *c = av_mallocz(sizeof(*c) + SWSINTERNAL_ADDITIONAL_ASM_SIZE);
1034 if (!c)
1035 return NULL;
1036
1037 c->opts.av_class = &ff_sws_context_class;
1038 av_opt_set_defaults(c);
1039 atomic_init(&c->stride_unaligned_warned, 0);
1040 atomic_init(&c->data_unaligned_warned, 0);
1041
1042 return &c->opts;
1043}
1044
1045static uint16_t * alloc_gamma_tbl(double e)
1046{
1047 int i = 0;
1048 uint16_t * tbl;
1049 tbl = (uint16_t*)av_malloc(sizeof(uint16_t) * 1 << 16);
1050 if (!tbl)
1051 return NULL;
1052
1053 for (i = 0; i < 65536; ++i) {
1054 tbl[i] = pow(i / 65535.0, e) * 65535.0;
1055 }
1056 return tbl;
1057}
1058
1059static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1060{
1061 switch(fmt) {
1062 case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1063 case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1064 case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1065 case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1066 case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1067
1068 case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1069 case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1070 case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1071
1072 case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1073
1074 case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1075 case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1076
1077 case AV_PIX_FMT_GBRAP12LE: return AV_PIX_FMT_GBRP12;
1078 case AV_PIX_FMT_GBRAP12BE: return AV_PIX_FMT_GBRP12;
1079
1080 case AV_PIX_FMT_GBRAP14LE: return AV_PIX_FMT_GBRP14;
1081 case AV_PIX_FMT_GBRAP14BE: return AV_PIX_FMT_GBRP14;
1082
1083 case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1084 case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1085
1086 case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1087 case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1088 case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1089 case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1090
1091 case AV_PIX_FMT_YA16BE: return AV_PIX_FMT_GRAY16;
1092 case AV_PIX_FMT_YA16LE: return AV_PIX_FMT_GRAY16;
1093
1094 case AV_PIX_FMT_YUVA420P9BE: return AV_PIX_FMT_YUV420P9;
1095 case AV_PIX_FMT_YUVA422P9BE: return AV_PIX_FMT_YUV422P9;
1096 case AV_PIX_FMT_YUVA444P9BE: return AV_PIX_FMT_YUV444P9;
1097 case AV_PIX_FMT_YUVA420P9LE: return AV_PIX_FMT_YUV420P9;
1098 case AV_PIX_FMT_YUVA422P9LE: return AV_PIX_FMT_YUV422P9;
1099 case AV_PIX_FMT_YUVA444P9LE: return AV_PIX_FMT_YUV444P9;
1100 case AV_PIX_FMT_YUVA420P10BE: return AV_PIX_FMT_YUV420P10;
1101 case AV_PIX_FMT_YUVA422P10BE: return AV_PIX_FMT_YUV422P10;
1102 case AV_PIX_FMT_YUVA444P10BE: return AV_PIX_FMT_YUV444P10;
1103 case AV_PIX_FMT_YUVA420P10LE: return AV_PIX_FMT_YUV420P10;
1104 case AV_PIX_FMT_YUVA422P10LE: return AV_PIX_FMT_YUV422P10;
1105 case AV_PIX_FMT_YUVA444P10LE: return AV_PIX_FMT_YUV444P10;
1106 case AV_PIX_FMT_YUVA420P16BE: return AV_PIX_FMT_YUV420P16;
1107 case AV_PIX_FMT_YUVA422P16BE: return AV_PIX_FMT_YUV422P16;
1108 case AV_PIX_FMT_YUVA444P16BE: return AV_PIX_FMT_YUV444P16;
1109 case AV_PIX_FMT_YUVA420P16LE: return AV_PIX_FMT_YUV420P16;
1110 case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1111 case AV_PIX_FMT_YUVA444P16LE: return AV_PIX_FMT_YUV444P16;
1112
1113// case AV_PIX_FMT_AYUV64LE:
1114// case AV_PIX_FMT_AYUV64BE:
1115// case AV_PIX_FMT_PAL8:
1116 default: return AV_PIX_FMT_NONE;
1117 }
1118}
1119
1120static int scaler_flag(SwsScaler scaler, int fallback)
1121{
1122 switch (scaler) {
1123 case SWS_SCALE_BILINEAR: return SWS_BILINEAR; break;
1124 case SWS_SCALE_BICUBIC: return SWS_BICUBIC; break;
1125 case SWS_SCALE_POINT: return SWS_POINT; break;
1126 case SWS_SCALE_AREA: return SWS_AREA; break;
1127 case SWS_SCALE_GAUSSIAN: return SWS_GAUSS; break;
1128 case SWS_SCALE_SINC: return SWS_SINC; break;
1129 case SWS_SCALE_LANCZOS: return SWS_LANCZOS; break;
1130 case SWS_SCALE_SPLINE: return SWS_SPLINE; break;
1131 default:
1132 return fallback;
1133 }
1134}
1135
1136av_cold int ff_sws_init_single_context(SwsContext *sws, SwsFilter *srcFilter,
1137 SwsFilter *dstFilter)
1138{
1139 int i;
1140 int usesVFilter, usesHFilter;
1141 int unscaled;
1142 SwsInternal *c = sws_internal(sws);
1143 SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1144 int srcW = sws->src_w;
1145 int srcH = sws->src_h;
1146 int dstW = sws->dst_w;
1147 int dstH = sws->dst_h;
1148 int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 66, 16);
1149 int flags, cpu_flags;
1150 enum AVPixelFormat srcFormat, dstFormat;
1151 const AVPixFmtDescriptor *desc_src;
1152 const AVPixFmtDescriptor *desc_dst;
1153 int ret = 0;
1154 enum AVPixelFormat tmpFmt;
1155 static const float float_mult = 1.0f / 255.0f;
1156
1157 cpu_flags = av_get_cpu_flags();
1158 flags = sws->flags;
1159 emms_c();
1160
1161 unscaled = (srcW == dstW && srcH == dstH);
1162
1163 if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1164 sws_setColorspaceDetails(sws, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sws->src_range,
1165 ff_yuv2rgb_coeffs[SWS_CS_DEFAULT],
1166 sws->dst_range, 0, 1 << 16, 1 << 16);
1167
1168 ret = handle_formats(sws);
1169 if (ret < 0)
1170 return ret;
1171 srcFormat = sws->src_format;
1172 dstFormat = sws->dst_format;
1173 desc_src = av_pix_fmt_desc_get(srcFormat);
1174 desc_dst = av_pix_fmt_desc_get(dstFormat);
1175
1176 // If the source has no alpha then disable alpha blendaway
1177 if (c->src0Alpha)
1178 sws->alpha_blend = SWS_ALPHA_BLEND_NONE;
1179
1180 if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1181 av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1182 if (!sws_isSupportedInput(srcFormat)) {
1183 av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
1184 av_get_pix_fmt_name(srcFormat));
1185 return AVERROR(EINVAL);
1186 }
1187 if (!sws_isSupportedOutput(dstFormat)) {
1188 av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n",
1189 av_get_pix_fmt_name(dstFormat));
1190 return AVERROR(EINVAL);
1191 }
1192 }
1193 av_assert2(desc_src && desc_dst);
1194
1195 i = flags & (SWS_POINT |
1196 SWS_AREA |
1197 SWS_BILINEAR |
1198 SWS_FAST_BILINEAR |
1199 SWS_BICUBIC |
1200 SWS_X |
1201 SWS_GAUSS |
1202 SWS_LANCZOS |
1203 SWS_SINC |
1204 SWS_SPLINE |
1205 SWS_BICUBLIN);
1206
1207 /* provide a default scaler if not set by caller */
1208 if (!i) {
1209 if (dstW < srcW && dstH < srcH)
1210 i = SWS_BICUBIC;
1211 else if (dstW > srcW && dstH > srcH)
1212 i = SWS_BICUBIC;
1213 else
1214 i = SWS_BICUBIC;
1215 flags |= i;
1216 sws->flags = flags;
1217 } else if (i & (i - 1)) {
1218 av_log(c, AV_LOG_ERROR,
1219 "Exactly one scaler algorithm must be chosen, got %X\n", i);
1220 return AVERROR(EINVAL);
1221 }
1222
1223 if (i == SWS_FAST_BILINEAR) {
1224 /* the fast bilinear scalers keep the source position in 16.16 fixed point */
1225 if (srcW < 8 || dstW <= 8 || srcW >= 65536) {
1226 i = SWS_BILINEAR;
1227 flags ^= SWS_FAST_BILINEAR | i;
1228 sws->flags = flags;
1229 }
1230 }
1231
1232 SwsScaler scaler_sub = sws->scaler_sub ? sws->scaler_sub : sws->scaler;
1233 int lum_scaler = scaler_flag(sws->scaler, i == SWS_BICUBLIN ? SWS_BICUBIC : i);
1234 int chr_scaler = scaler_flag(scaler_sub, i == SWS_BICUBLIN ? SWS_BILINEAR : i);
1235 const int info_scaler = sws->scaler == SWS_SCALE_AUTO &&
1236 i == SWS_BICUBLIN &&
1237 chr_scaler == SWS_BILINEAR ? i : lum_scaler;
1238
1239 /* sanity check */
1240 if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1241 /* FIXME check if these are enough and try to lower them after
1242 * fixing the relevant parts of the code */
1243 av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1244 srcW, srcH, dstW, dstH);
1245 return AVERROR(EINVAL);
1246 }
1247
1248 ret = av_image_check_size2(srcW, srcH, INT64_MAX, AV_PIX_FMT_NONE, 0, c);
1249 if (ret >= 0)
1250 ret = av_image_check_size2(dstW, dstH, INT64_MAX, AV_PIX_FMT_NONE, 0, c);
1251 if (ret < 0)
1252 return ret;
1253
1254 if (!dstFilter)
1255 dstFilter = &dummyFilter;
1256 if (!srcFilter)
1257 srcFilter = &dummyFilter;
1258
1259 int64_t lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1260 int64_t lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1261 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1262 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1263 c->vRounder = 4 * 0x0001000100010001ULL;
1264
1265 usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1266 (srcFilter->chrV && srcFilter->chrV->length > 1) ||
1267 (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1268 (dstFilter->chrV && dstFilter->chrV->length > 1);
1269 usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1270 (srcFilter->chrH && srcFilter->chrH->length > 1) ||
1271 (dstFilter->lumH && dstFilter->lumH->length > 1) ||
1272 (dstFilter->chrH && dstFilter->chrH->length > 1);
1273
1274 av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1275 av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1276
1277 c->dst_slice_align = 1 << c->chrDstVSubSample;
1278
1279 if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
1280 if (dstW&1) {
1281 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1282 flags |= SWS_FULL_CHR_H_INT;
1283 sws->flags = flags;
1284 }
1285
1286 if ( c->chrSrcHSubSample == 0
1287 && c->chrSrcVSubSample == 0
1288 && sws->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
1289 && !(sws->flags & SWS_FAST_BILINEAR)
1290 ) {
1291 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1292 flags |= SWS_FULL_CHR_H_INT;
1293 sws->flags = flags;
1294 }
1295 }
1296
1297 if (sws->dither == SWS_DITHER_AUTO) {
1298 if (flags & SWS_ERROR_DIFFUSION)
1299 sws->dither = SWS_DITHER_ED;
1300 }
1301
1302 if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
1303 dstFormat == AV_PIX_FMT_RGB4_BYTE ||
1304 dstFormat == AV_PIX_FMT_BGR8 ||
1305 dstFormat == AV_PIX_FMT_RGB8) {
1306 if (sws->dither == SWS_DITHER_AUTO)
1307 sws->dither = (flags & SWS_FULL_CHR_H_INT) ? SWS_DITHER_ED : SWS_DITHER_BAYER;
1308 if (!(flags & SWS_FULL_CHR_H_INT)) {
1309 if (sws->dither == SWS_DITHER_ED || sws->dither == SWS_DITHER_A_DITHER || sws->dither == SWS_DITHER_X_DITHER || sws->dither == SWS_DITHER_NONE) {
1310 av_log(c, AV_LOG_DEBUG,
1311 "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1312 av_get_pix_fmt_name(dstFormat));
1313 flags |= SWS_FULL_CHR_H_INT;
1314 sws->flags = flags;
1315 }
1316 }
1317 if (flags & SWS_FULL_CHR_H_INT) {
1318 if (sws->dither == SWS_DITHER_BAYER) {
1319 av_log(c, AV_LOG_DEBUG,
1320 "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1321 av_get_pix_fmt_name(dstFormat));
1322 sws->dither = SWS_DITHER_ED;
1323 }
1324 }
1325 }
1326 if (isPlanarRGB(dstFormat)) {
1327 if (!(flags & SWS_FULL_CHR_H_INT)) {
1328 av_log(c, AV_LOG_DEBUG,
1329 "%s output is not supported with half chroma resolution, switching to full\n",
1330 av_get_pix_fmt_name(dstFormat));
1331 flags |= SWS_FULL_CHR_H_INT;
1332 sws->flags = flags;
1333 }
1334 }
1335
1336 /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1337 * chroma interpolation */
1338 if (flags & SWS_FULL_CHR_H_INT &&
1339 isAnyRGB(dstFormat) &&
1340 !isPlanarRGB(dstFormat) &&
1341 dstFormat != AV_PIX_FMT_RGBA64LE &&
1342 dstFormat != AV_PIX_FMT_RGBA64BE &&
1343 dstFormat != AV_PIX_FMT_BGRA64LE &&
1344 dstFormat != AV_PIX_FMT_BGRA64BE &&
1345 dstFormat != AV_PIX_FMT_RGB48LE &&
1346 dstFormat != AV_PIX_FMT_RGB48BE &&
1347 dstFormat != AV_PIX_FMT_BGR48LE &&
1348 dstFormat != AV_PIX_FMT_BGR48BE &&
1349 dstFormat != AV_PIX_FMT_RGBA &&
1350 dstFormat != AV_PIX_FMT_ARGB &&
1351 dstFormat != AV_PIX_FMT_BGRA &&
1352 dstFormat != AV_PIX_FMT_ABGR &&
1353 dstFormat != AV_PIX_FMT_RGB24 &&
1354 dstFormat != AV_PIX_FMT_BGR24 &&
1355 dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1356 dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1357 dstFormat != AV_PIX_FMT_BGR8 &&
1358 dstFormat != AV_PIX_FMT_RGB8 &&
1359 dstFormat != AV_PIX_FMT_X2RGB10LE &&
1360 dstFormat != AV_PIX_FMT_X2BGR10LE
1361 ) {
1362 av_log(c, AV_LOG_WARNING,
1363 "full chroma interpolation for destination format '%s' not yet implemented\n",
1364 av_get_pix_fmt_name(dstFormat));
1365 flags &= ~SWS_FULL_CHR_H_INT;
1366 sws->flags = flags;
1367 }
1368 if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1369 c->chrDstHSubSample = 1;
1370
1371 // drop some chroma lines if the user wants it
1372 c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1373 SWS_SRC_V_CHR_DROP_SHIFT;
1374 c->chrSrcVSubSample += c->vChrDrop;
1375
1376 /* drop every other pixel for chroma calculation unless user
1377 * wants full chroma */
1378 if (isAnyRGB(srcFormat) && !(srcW & 1) && !(flags & SWS_FULL_CHR_H_INP) &&
1379 srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1380 srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1381 srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1382 srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1383 srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1384 srcFormat != AV_PIX_FMT_GBRP10MSBBE && srcFormat != AV_PIX_FMT_GBRP10MSBLE &&
1385 srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1386 srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1387 srcFormat != AV_PIX_FMT_GBRP12MSBBE && srcFormat != AV_PIX_FMT_GBRP12MSBLE &&
1388 srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1389 srcFormat != AV_PIX_FMT_GBRAP14BE && srcFormat != AV_PIX_FMT_GBRAP14LE &&
1390 srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1391 srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1392 srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1393 srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1394 srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1395 srcFormat != AV_PIX_FMT_GBRPF16BE && srcFormat != AV_PIX_FMT_GBRPF16LE &&
1396 srcFormat != AV_PIX_FMT_GBRAPF16BE && srcFormat != AV_PIX_FMT_GBRAPF16LE &&
1397 ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1398 (flags & SWS_FAST_BILINEAR)))
1399 c->chrSrcHSubSample = 1;
1400
1401 // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1402 c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1403 c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1404 c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1405 c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1406
1407 if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1408 goto nomem;
1409
1410 c->srcBpc = desc_src->comp[0].depth;
1411 if (c->srcBpc < 8)
1412 c->srcBpc = 8;
1413 c->dstBpc = desc_dst->comp[0].depth;
1414 if (c->dstBpc < 8)
1415 c->dstBpc = 8;
1416 if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1417 c->srcBpc = 16;
1418 if (c->dstBpc == 16)
1419 dst_stride <<= 1;
1420
1421 if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1422 c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1423 c->chrDstW >= c->chrSrcW &&
1424 (srcW & 15) == 0;
1425 if (!c->canMMXEXTBeUsed && dstW >= srcW && c->chrDstW >= c->chrSrcW && (srcW & 15) == 0
1426
1427 && (flags & SWS_FAST_BILINEAR)) {
1428 if (flags & SWS_PRINT_INFO)
1429 av_log(c, AV_LOG_INFO,
1430 "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1431 }
1432 if (usesHFilter || isNBPS(sws->src_format) || is16BPS(sws->src_format) || isAnyRGB(sws->src_format))
1433 c->canMMXEXTBeUsed = 0;
1434 } else
1435 c->canMMXEXTBeUsed = 0;
1436
1437 int64_t chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1438 int64_t chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1439
1440 /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1441 * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1442 * correct scaling.
1443 * n-2 is the last chrominance sample available.
1444 * This is not perfect, but no one should notice the difference, the more
1445 * correct variant would be like the vertical one, but that would require
1446 * some special code for the first and last pixel */
1447 if (flags & SWS_FAST_BILINEAR) {
1448 if (c->canMMXEXTBeUsed) {
1449 lumXInc += 1;
1450 chrXInc += 1;
1451 }
1452 // we don't use the x86 asm scaler if MMX is available
1453 else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1454 lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1455 chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1456 }
1457 }
1458 if (chrXInc < 10 || chrXInc > INT_MAX ||
1459 chrYInc < 10 || chrYInc > INT_MAX ||
1460 lumXInc < 10 || lumXInc > INT_MAX ||
1461 lumYInc < 10 || lumYInc > INT_MAX)
1462 return AVERROR_PATCHWELCOME;
1463
1464 c->lumXInc = lumXInc;
1465 c->lumYInc = lumYInc;
1466 c->chrXInc = chrXInc;
1467 c->chrYInc = chrYInc;
1468
1469
1470 // hardcoded for now
1471 c->gamma_value = 2.2;
1472 tmpFmt = AV_PIX_FMT_RGBA64LE;
1473
1474 if (!unscaled && sws->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1475 SwsInternal *c2;
1476 c->cascaded_context[0] = NULL;
1477
1478 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1479 srcW, srcH, tmpFmt, 64);
1480 if (ret < 0)
1481 return ret;
1482
1483 c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1484 srcW, srcH, tmpFmt,
1485 flags, NULL, NULL,
1486 sws->scaler_params);
1487 if (!c->cascaded_context[0]) {
1488 return AVERROR(ENOMEM);
1489 }
1490
1491 c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1492 dstW, dstH, tmpFmt,
1493 flags, srcFilter, dstFilter,
1494 sws->scaler_params);
1495
1496 if (!c->cascaded_context[1])
1497 return AVERROR(ENOMEM);
1498
1499 c2 = sws_internal(c->cascaded_context[1]);
1500 c2->is_internal_gamma = 1;
1501 c2->gamma = alloc_gamma_tbl( c->gamma_value);
1502 c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1503 if (!c2->gamma || !c2->inv_gamma)
1504 return AVERROR(ENOMEM);
1505
1506 // is_internal_flag is set after creating the context
1507 // to properly create the gamma convert FilterDescriptor
1508 // we have to re-initialize it
1509 ff_free_filters(c2);
1510 if ((ret = ff_init_filters(c2)) < 0) {
1511 sws_freeContext(c->cascaded_context[1]);
1512 c->cascaded_context[1] = NULL;
1513 return ret;
1514 }
1515
1516 c->cascaded_context[2] = NULL;
1517 if (dstFormat != tmpFmt) {
1518 ret = av_image_alloc(c->cascaded_tmp[1], c->cascaded_tmpStride[1],
1519 dstW, dstH, tmpFmt, 64);
1520 if (ret < 0)
1521 return ret;
1522
1523 c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1524 dstW, dstH, dstFormat,
1525 flags, NULL, NULL,
1526 sws->scaler_params);
1527 if (!c->cascaded_context[2])
1528 return AVERROR(ENOMEM);
1529 }
1530 return 0;
1531 }
1532
1533 if (isBayer(srcFormat)) {
1534 if (!unscaled ||
1535 (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1536 dstFormat != AV_PIX_FMT_RGB48)) {
1537 enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1538
1539 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1540 srcW, srcH, tmpFormat, 64);
1541 if (ret < 0)
1542 return ret;
1543
1544 c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1545 srcW, srcH, tmpFormat,
1546 flags, srcFilter, NULL,
1547 sws->scaler_params);
1548 if (!c->cascaded_context[0])
1549 return AVERROR(ENOMEM);
1550
1551 c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1552 dstW, dstH, dstFormat,
1553 flags, NULL, dstFilter,
1554 sws->scaler_params);
1555 if (!c->cascaded_context[1])
1556 return AVERROR(ENOMEM);
1557 return 0;
1558 }
1559 }
1560
1561 if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1562 for (i = 0; i < 256; ++i){
1563 c->uint2float_lut[i] = (float)i * float_mult;
1564 }
1565 }
1566
1567 // float will be converted to uint16_t
1568 if (isFloat(srcFormat) && !isAnyRGB(srcFormat) &&
1569 (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1570 dstFormat != AV_PIX_FMT_GRAY8))){
1571 c->srcBpc = 16;
1572 }
1573
1574 if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1575 enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1576
1577 if (tmpFormat != AV_PIX_FMT_NONE && sws->alpha_blend != SWS_ALPHA_BLEND_NONE) {
1578 if (!unscaled ||
1579 dstFormat != tmpFormat ||
1580 usesHFilter || usesVFilter ||
1581 sws->src_range != sws->dst_range
1582 ) {
1583 c->cascaded_mainindex = 1;
1584 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1585 srcW, srcH, tmpFormat, 64);
1586 if (ret < 0)
1587 return ret;
1588
1589 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
1590 srcW, srcH, tmpFormat,
1591 flags, sws->scaler_params);
1592 if (!c->cascaded_context[0])
1593 return AVERROR(EINVAL);
1594 c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
1595 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1596 if (ret < 0)
1597 return ret;
1598
1599 c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
1600 dstW, dstH, dstFormat,
1601 flags, sws->scaler_params);
1602 if (!c->cascaded_context[1])
1603 return AVERROR(EINVAL);
1604
1605 c->cascaded_context[1]->src_range = sws->src_range;
1606 c->cascaded_context[1]->dst_range = sws->dst_range;
1607 ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1608 if (ret < 0)
1609 return ret;
1610
1611 return 0;
1612 }
1613 }
1614 }
1615
1616 /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1617 if (unscaled && !usesHFilter && !usesVFilter &&
1618 sws->alpha_blend != SWS_ALPHA_BLEND_NONE &&
1619 isALPHA(srcFormat) &&
1620 (sws->src_range == sws->dst_range || isAnyRGB(dstFormat)) &&
1621 alphaless_fmt(srcFormat) == dstFormat
1622 ) {
1623 c->convert_unscaled = ff_sws_alphablendaway;
1624
1625 if (flags & SWS_PRINT_INFO)
1626 av_log(c, AV_LOG_INFO,
1627 "using alpha blendaway %s -> %s special converter\n",
1628 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1629 return 0;
1630 }
1631
1632 /* unscaled special cases */
1633 if (unscaled && !usesHFilter && !usesVFilter &&
1634 (sws->src_range == sws->dst_range || isAnyRGB(dstFormat) ||
1635 isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1636
1637 ff_get_unscaled_swscale(c);
1638
1639 if (c->convert_unscaled) {
1640 if (flags & SWS_PRINT_INFO)
1641 av_log(c, AV_LOG_INFO,
1642 "using unscaled %s -> %s special converter\n",
1643 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1644 return 0;
1645 }
1646 }
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 c->lumMmxextFilterCode = ff_sws_jit_alloc(c->lumMmxextFilterCodeSize);
1659 c->chrMmxextFilterCode = ff_sws_jit_alloc(c->chrMmxextFilterCodeSize);
1660 if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode) {
1661 av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1662 return AVERROR(ENOMEM);
1663 }
1664
1665 if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1666 !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1667 !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1668 !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1669 goto nomem;
1670
1671 ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1672 c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1673 ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1674 c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1675
1676 if ((ret = ff_sws_jit_protect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize)) < 0 ||
1677 (ret = ff_sws_jit_protect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize)) < 0) {
1678 av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1679 goto fail;
1680 }
1681 } else
1682#endif /* HAVE_MMXEXT_INLINE */
1683 {
1684 const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1685 PPC_ALTIVEC(cpu_flags) ? 8 :
1686 have_neon(cpu_flags) ? 4 :
1687 have_lsx(cpu_flags) ? 8 :
1688 have_lasx(cpu_flags) ? 8 : 1;
1689
1690 if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1691 &c->hLumFilterSize, c->lumXInc,
1692 srcW, dstW, filterAlign, 1 << 14,
1693 lum_scaler, flags,
1694 cpu_flags, srcFilter->lumH, dstFilter->lumH,
1695 sws->scaler_params,
1696 get_local_pos(c, 0, 0, 0),
1697 get_local_pos(c, 0, 0, 0))) < 0)
1698 goto fail;
1699 if (ff_shuffle_filter_coefficients(c, c->hLumFilterPos, c->hLumFilterSize, c->hLumFilter, dstW) < 0)
1700 goto nomem;
1701 if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1702 &c->hChrFilterSize, c->chrXInc,
1703 c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1704 chr_scaler, flags,
1705 cpu_flags, srcFilter->chrH, dstFilter->chrH,
1706 sws->scaler_params,
1707 get_local_pos(c, c->chrSrcHSubSample, sws->src_h_chr_pos, 0),
1708 get_local_pos(c, c->chrDstHSubSample, sws->dst_h_chr_pos, 0))) < 0)
1709 goto fail;
1710 if (ff_shuffle_filter_coefficients(c, c->hChrFilterPos, c->hChrFilterSize, c->hChrFilter, c->chrDstW) < 0)
1711 goto nomem;
1712 }
1713 } // initialize horizontal stuff
1714
1715 /* precalculate vertical scaler filter coefficients */
1716 {
1717 const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1718 PPC_ALTIVEC(cpu_flags) ? 8 :
1719 have_neon(cpu_flags) ? 2 : 1;
1720
1721 ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1722 c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1723 lum_scaler, flags,
1724 cpu_flags, srcFilter->lumV, dstFilter->lumV,
1725 sws->scaler_params,
1726 get_local_pos(c, 0, 0, 1),
1727 get_local_pos(c, 0, 0, 1));
1728 int usecascade = (ret == RETCODE_USE_CASCADE);
1729 if (ret < 0 && !usecascade)
1730 goto fail;
1731 if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1732 c->chrYInc, c->chrSrcH, c->chrDstH,
1733 filterAlign, (1 << 12),
1734 chr_scaler, flags,
1735 cpu_flags, srcFilter->chrV, dstFilter->chrV,
1736 sws->scaler_params,
1737 get_local_pos(c, c->chrSrcVSubSample, sws->src_v_chr_pos, 1),
1738 get_local_pos(c, c->chrDstVSubSample, sws->dst_v_chr_pos, 1))) < 0)
1739
1740 goto fail;
1741 if (usecascade) {
1742 ret = RETCODE_USE_CASCADE;
1743 goto fail;
1744 }
1745
1746#if HAVE_ALTIVEC
1747 ret = ff_sws_init_altivec_bufs(c);
1748 if (ret < 0)
1749 goto fail;
1750#endif
1751 }
1752
1753 for (i = 0; i < 4; i++)
1754 if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], sws->dst_w + 3))
1755 goto nomem;
1756
1757 c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(sws->src_format) && isALPHA(sws->dst_format)) ? 1 : 0;
1758
1759 // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1760 c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1761 c->uv_offx2 = dst_stride + 16;
1762
1763 av_assert0(c->chrDstH <= dstH);
1764
1765 if (flags & SWS_PRINT_INFO) {
1766 const char *scaler = NULL, *cpucaps;
1767
1768 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1769 if (info_scaler == scale_algorithms[i].flag) {
1770 scaler = scale_algorithms[i].description;
1771 break;
1772 }
1773 }
1774 if (!scaler)
1775 scaler = "ehh flags invalid?!";
1776 av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1777 scaler,
1778 av_get_pix_fmt_name(srcFormat),
1779 dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1780 dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1781 dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1782 "dithered " : "",
1783 av_get_pix_fmt_name(dstFormat));
1784
1785 if (INLINE_MMXEXT(cpu_flags))
1786 cpucaps = "MMXEXT";
1787 else if (INLINE_MMX(cpu_flags))
1788 cpucaps = "MMX";
1789 else if (PPC_ALTIVEC(cpu_flags))
1790 cpucaps = "AltiVec";
1791 else
1792 cpucaps = "C";
1793
1794 av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1795
1796 av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1797 av_log(c, AV_LOG_DEBUG,
1798 "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1799 sws->src_w, sws->src_h, sws->dst_w, sws->dst_h, c->lumXInc, c->lumYInc);
1800 av_log(c, AV_LOG_DEBUG,
1801 "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1802 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1803 c->chrXInc, c->chrYInc);
1804 }
1805
1806 ff_sws_init_scale(c);
1807
1808 return ff_init_filters(c);
1809nomem:
1810 ret = AVERROR(ENOMEM);
1811fail: // FIXME replace things by appropriate error codes
1812 if (ret == RETCODE_USE_CASCADE) {
1813 int tmpW = sqrt(srcW * (int64_t)dstW);
1814 int tmpH = sqrt(srcH * (int64_t)dstH);
1815 enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1816
1817 if (isALPHA(srcFormat))
1818 tmpFormat = AV_PIX_FMT_YUVA420P;
1819
1820 if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1821 return AVERROR(EINVAL);
1822
1823 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1824 tmpW, tmpH, tmpFormat, 64);
1825 if (ret < 0)
1826 return ret;
1827
1828 c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1829 tmpW, tmpH, tmpFormat,
1830 flags, srcFilter, NULL,
1831 sws->scaler_params);
1832 if (!c->cascaded_context[0])
1833 return AVERROR(ENOMEM);
1834
1835 c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
1836 dstW, dstH, dstFormat,
1837 flags, NULL, dstFilter,
1838 sws->scaler_params);
1839 if (!c->cascaded_context[1])
1840 return AVERROR(ENOMEM);
1841 return 0;
1842 }
1843 return ret;
1844}
1845
1846static int context_init_threaded(SwsContext *sws,
1847 SwsFilter *src_filter, SwsFilter *dst_filter)
1848{
1849 SwsInternal *c = sws_internal(sws);
1850 int ret;
1851
1852 ret = avpriv_slicethread_create2(&c->slicethread, (void*) sws,
1853 ff_sws_slice_worker, NULL, sws->threads);
1854 if (ret == AVERROR(ENOSYS)) {
1855 sws->threads = 1;
1856 return 0;
1857 } else if (ret < 0)
1858 return ret;
1859
1860 sws->threads = ret;
1861
1862 c->slice_ctx = av_calloc(sws->threads, sizeof(*c->slice_ctx));
1863 if (!c->slice_ctx)
1864 return AVERROR(ENOMEM);
1865
1866 for (int i = 0; i < sws->threads; i++) {
1867 SwsContext *slice;
1868 slice = c->slice_ctx[i] = sws_alloc_context();
1869 if (!slice)
1870 return AVERROR(ENOMEM);
1871 sws_internal(slice)->parent = sws;
1872 c->nb_slice_ctx++;
1873
1874 ret = av_opt_copy(slice, sws);
1875 if (ret < 0)
1876 return ret;
1877 slice->threads = 1;
1878
1879 ret = ff_sws_init_single_context(slice, src_filter, dst_filter);
1880 if (ret < 0)
1881 return ret;
1882
1883 if (slice->dither == SWS_DITHER_ED) {
1884 av_log(c, AV_LOG_VERBOSE,
1885 "Error-diffusion dither is in use, scaling will be single-threaded.");
1886 break;
1887 }
1888 }
1889
1890 return 0;
1891}
1892
1893av_cold int sws_init_context(SwsContext *sws, SwsFilter *srcFilter,
1894 SwsFilter *dstFilter)
1895{
1896 SwsInternal *c = sws_internal(sws);
1897 static AVOnce rgb2rgb_once = AV_ONCE_INIT;
1898 enum AVPixelFormat src_format, dst_format;
1899 int ret;
1900
1901 c->is_legacy_init = 1;
1902 c->frame_src = av_frame_alloc();
1903 c->frame_dst = av_frame_alloc();
1904 if (!c->frame_src || !c->frame_dst)
1905 return AVERROR(ENOMEM);
1906
1907 if (ff_thread_once(&rgb2rgb_once, ff_sws_rgb2rgb_init) != 0)
1908 return AVERROR_UNKNOWN;
1909
1910 src_format = sws->src_format;
1911 dst_format = sws->dst_format;
1912 sws->src_range |= handle_jpeg(&sws->src_format);
1913 sws->dst_range |= handle_jpeg(&sws->dst_format);
1914
1915 if (src_format != sws->src_format || dst_format != sws->dst_format)
1916 av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
1917
1918 if (sws->threads != 1) {
1919 ret = context_init_threaded(sws, srcFilter, dstFilter);
1920 if (ret < 0 || sws->threads > 1)
1921 return ret;
1922 // threading disabled in this build, init as single-threaded
1923 }
1924
1925 return ff_sws_init_single_context(sws, srcFilter, dstFilter);
1926}
1927
1928SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
1929 int dstW, int dstH, enum AVPixelFormat dstFormat,
1930 int flags, SwsFilter *srcFilter,
1931 SwsFilter *dstFilter, const double *param)
1932{
1933 SwsContext *sws;
1934
1935 sws = alloc_set_opts(srcW, srcH, srcFormat,
1936 dstW, dstH, dstFormat,
1937 flags, param);
1938 if (!sws)
1939 return NULL;
1940
1941 if (sws_init_context(sws, srcFilter, dstFilter) < 0) {
1942 sws_freeContext(sws);
1943 return NULL;
1944 }
1945
1946 return sws;
1947}
1948
1949static int isnan_vec(SwsVector *a)
1950{
1951 int i;
1952 for (i=0; i<a->length; i++)
1953 if (isnan(a->coeff[i]))
1954 return 1;
1955 return 0;
1956}
1957
1958static void makenan_vec(SwsVector *a)
1959{
1960 int i;
1961 for (i=0; i<a->length; i++)
1962 a->coeff[i] = NAN;
1963}
1964
1965SwsVector *sws_allocVec(int length)
1966{
1967 SwsVector *vec;
1968
1969 if(length <= 0 || length > INT_MAX/ sizeof(double))
1970 return NULL;
1971
1972 vec = av_malloc(sizeof(SwsVector));
1973 if (!vec)
1974 return NULL;
1975 vec->length = length;
1976 vec->coeff = av_malloc(sizeof(double) * length);
1977 if (!vec->coeff)
1978 av_freep(&vec);
1979 return vec;
1980}
1981
1982SwsVector *sws_getGaussianVec(double variance, double quality)
1983{
1984 const int length = (int)(variance * quality + 0.5) | 1;
1985 int i;
1986 double middle = (length - 1) * 0.5;
1987 SwsVector *vec;
1988
1989 if(variance < 0 || quality < 0)
1990 return NULL;
1991
1992 vec = sws_allocVec(length);
1993
1994 if (!vec)
1995 return NULL;
1996
1997 for (i = 0; i < length; i++) {
1998 double dist = i - middle;
1999 vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
2000 sqrt(2 * variance * M_PI);
2001 }
2002
2003 sws_normalizeVec(vec, 1.0);
2004
2005 return vec;
2006}
2007
2008/**
2009 * Allocate and return a vector with length coefficients, all
2010 * with the same value c.
2011 */
2012static
2013SwsVector *sws_getConstVec(double c, int length)
2014{
2015 int i;
2016 SwsVector *vec = sws_allocVec(length);
2017
2018 if (!vec)
2019 return NULL;
2020
2021 for (i = 0; i < length; i++)
2022 vec->coeff[i] = c;
2023
2024 return vec;
2025}
2026
2027/**
2028 * Allocate and return a vector with just one coefficient, with
2029 * value 1.0.
2030 */
2031static
2032SwsVector *sws_getIdentityVec(void)
2033{
2034 return sws_getConstVec(1.0, 1);
2035}
2036
2037static double sws_dcVec(SwsVector *a)
2038{
2039 int i;
2040 double sum = 0;
2041
2042 for (i = 0; i < a->length; i++)
2043 sum += a->coeff[i];
2044
2045 return sum;
2046}
2047
2048void sws_scaleVec(SwsVector *a, double scalar)
2049{
2050 int i;
2051
2052 for (i = 0; i < a->length; i++)
2053 a->coeff[i] *= scalar;
2054}
2055
2056void sws_normalizeVec(SwsVector *a, double height)
2057{
2058 sws_scaleVec(a, height / sws_dcVec(a));
2059}
2060
2061static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2062{
2063 int length = FFMAX(a->length, b->length);
2064 int i;
2065 SwsVector *vec = sws_getConstVec(0.0, length);
2066
2067 if (!vec)
2068 return NULL;
2069
2070 for (i = 0; i < a->length; i++)
2071 vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2072 for (i = 0; i < b->length; i++)
2073 vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2074
2075 return vec;
2076}
2077
2078/* shift left / or right if "shift" is negative */
2079static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2080{
2081 int length = a->length + FFABS(shift) * 2;
2082 int i;
2083 SwsVector *vec = sws_getConstVec(0.0, length);
2084
2085 if (!vec)
2086 return NULL;
2087
2088 for (i = 0; i < a->length; i++) {
2089 vec->coeff[i + (length - 1) / 2 -
2090 (a->length - 1) / 2 - shift] = a->coeff[i];
2091 }
2092
2093 return vec;
2094}
2095
2096static
2097void sws_shiftVec(SwsVector *a, int shift)
2098{
2099 SwsVector *shifted = sws_getShiftedVec(a, shift);
2100 if (!shifted) {
2101 makenan_vec(a);
2102 return;
2103 }
2104 av_free(a->coeff);
2105 a->coeff = shifted->coeff;
2106 a->length = shifted->length;
2107 av_free(shifted);
2108}
2109
2110static
2111void sws_addVec(SwsVector *a, SwsVector *b)
2112{
2113 SwsVector *sum = sws_sumVec(a, b);
2114 if (!sum) {
2115 makenan_vec(a);
2116 return;
2117 }
2118 av_free(a->coeff);
2119 a->coeff = sum->coeff;
2120 a->length = sum->length;
2121 av_free(sum);
2122}
2123
2124/**
2125 * Print with av_log() a textual representation of the vector a
2126 * if log_level <= av_log_level.
2127 */
2128static
2129void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2130{
2131 int i;
2132 double max = 0;
2133 double min = 0;
2134 double range;
2135
2136 for (i = 0; i < a->length; i++)
2137 if (a->coeff[i] > max)
2138 max = a->coeff[i];
2139
2140 for (i = 0; i < a->length; i++)
2141 if (a->coeff[i] < min)
2142 min = a->coeff[i];
2143
2144 range = max - min;
2145
2146 for (i = 0; i < a->length; i++) {
2147 int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2148 av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2149 for (; x > 0; x--)
2150 av_log(log_ctx, log_level, " ");
2151 av_log(log_ctx, log_level, "|\n");
2152 }
2153}
2154
2155void sws_freeVec(SwsVector *a)
2156{
2157 if (!a)
2158 return;
2159 av_freep(&a->coeff);
2160 a->length = 0;
2161 av_free(a);
2162}
2163
2164void sws_freeFilter(SwsFilter *filter)
2165{
2166 if (!filter)
2167 return;
2168
2169 sws_freeVec(filter->lumH);
2170 sws_freeVec(filter->lumV);
2171 sws_freeVec(filter->chrH);
2172 sws_freeVec(filter->chrV);
2173 av_free(filter);
2174}
2175
2176SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2177 float lumaSharpen, float chromaSharpen,
2178 float chromaHShift, float chromaVShift,
2179 int verbose)
2180{
2181 SwsFilter *filter = av_malloc(sizeof(SwsFilter));
2182 if (!filter)
2183 return NULL;
2184
2185 if (lumaGBlur != 0.0) {
2186 filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
2187 filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
2188 } else {
2189 filter->lumH = sws_getIdentityVec();
2190 filter->lumV = sws_getIdentityVec();
2191 }
2192
2193 if (chromaGBlur != 0.0) {
2194 filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
2195 filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2196 } else {
2197 filter->chrH = sws_getIdentityVec();
2198 filter->chrV = sws_getIdentityVec();
2199 }
2200
2201 if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2202 goto fail;
2203
2204 if (chromaSharpen != 0.0) {
2205 SwsVector *id = sws_getIdentityVec();
2206 if (!id)
2207 goto fail;
2208 sws_scaleVec(filter->chrH, -chromaSharpen);
2209 sws_scaleVec(filter->chrV, -chromaSharpen);
2210 sws_addVec(filter->chrH, id);
2211 sws_addVec(filter->chrV, id);
2212 sws_freeVec(id);
2213 }
2214
2215 if (lumaSharpen != 0.0) {
2216 SwsVector *id = sws_getIdentityVec();
2217 if (!id)
2218 goto fail;
2219 sws_scaleVec(filter->lumH, -lumaSharpen);
2220 sws_scaleVec(filter->lumV, -lumaSharpen);
2221 sws_addVec(filter->lumH, id);
2222 sws_addVec(filter->lumV, id);
2223 sws_freeVec(id);
2224 }
2225
2226 if (chromaHShift != 0.0)
2227 sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2228
2229 if (chromaVShift != 0.0)
2230 sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2231
2232 sws_normalizeVec(filter->chrH, 1.0);
2233 sws_normalizeVec(filter->chrV, 1.0);
2234 sws_normalizeVec(filter->lumH, 1.0);
2235 sws_normalizeVec(filter->lumV, 1.0);
2236
2237 if (isnan_vec(filter->chrH) ||
2238 isnan_vec(filter->chrV) ||
2239 isnan_vec(filter->lumH) ||
2240 isnan_vec(filter->lumV))
2241 goto fail;
2242
2243 if (verbose)
2244 sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2245 if (verbose)
2246 sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2247
2248 return filter;
2249
2250fail:
2251 sws_freeVec(filter->lumH);
2252 sws_freeVec(filter->lumV);
2253 sws_freeVec(filter->chrH);
2254 sws_freeVec(filter->chrV);
2255 av_freep(&filter);
2256 return NULL;
2257}
2258
2259void sws_freeContext(SwsContext *sws)
2260{
2261 SwsInternal *c = sws_internal(sws);
2262 int i;
2263 if (!c)
2264 return;
2265
2266 av_refstruct_unref(&c->hw_priv);
2267
2268 for (i = 0; i < FF_ARRAY_ELEMS(c->graph); i++)
2269 ff_sws_graph_free(&c->graph[i]);
2270 ff_frame_pool_uninit(&c->frame_pool);
2271
2272 for (i = 0; i < c->nb_slice_ctx; i++)
2273 sws_freeContext(c->slice_ctx[i]);
2274 av_freep(&c->slice_ctx);
2275
2276 avpriv_slicethread_free(&c->slicethread);
2277
2278 for (i = 0; i < 4; i++)
2279 av_freep(&c->dither_error[i]);
2280
2281 av_frame_free(&c->frame_src);
2282 av_frame_free(&c->frame_dst);
2283
2284 av_freep(&c->src_ranges.ranges);
2285
2286 av_freep(&c->vLumFilter);
2287 av_freep(&c->vChrFilter);
2288 av_freep(&c->hLumFilter);
2289 av_freep(&c->hChrFilter);
2290#if HAVE_ALTIVEC
2291 ff_sws_free_altivec_bufs(c);
2292#endif
2293
2294 av_freep(&c->vLumFilterPos);
2295 av_freep(&c->vChrFilterPos);
2296 av_freep(&c->hLumFilterPos);
2297 av_freep(&c->hChrFilterPos);
2298
2299#if HAVE_MMX_INLINE
2300 ff_sws_jit_free(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2301 ff_sws_jit_free(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2302 c->lumMmxextFilterCode = NULL;
2303 c->chrMmxextFilterCode = NULL;
2304#endif /* HAVE_MMX_INLINE */
2305
2306 av_freep(&c->yuvTable);
2307 av_freep(&c->formatConvBuffer);
2308
2309 sws_freeContext(c->cascaded_context[0]);
2310 sws_freeContext(c->cascaded_context[1]);
2311 sws_freeContext(c->cascaded_context[2]);
2312 memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2313 av_freep(&c->cascaded_tmp[0][0]);
2314 av_freep(&c->cascaded_tmp[1][0]);
2315
2316 av_freep(&c->gamma);
2317 av_freep(&c->inv_gamma);
2318#if CONFIG_SMALL
2319 av_freep(&c->xyz2rgb.gamma.in);
2320#endif
2321
2322 av_freep(&c->rgb0_scratch);
2323 av_freep(&c->xyz_scratch);
2324
2325 ff_free_filters(c);
2326
2327 av_free(c);
2328}
2329
2330void sws_free_context(SwsContext **pctx)
2331{
2332 SwsContext *ctx = *pctx;
2333 if (!ctx)
2334 return;
2335
2336 sws_freeContext(ctx);
2337 *pctx = NULL;
2338}
2339
2340SwsContext *sws_getCachedContext(SwsContext *prev, int srcW,
2341 int srcH, enum AVPixelFormat srcFormat,
2342 int dstW, int dstH,
2343 enum AVPixelFormat dstFormat, int flags,
2344 SwsFilter *srcFilter,
2345 SwsFilter *dstFilter,
2346 const double *param)
2347{
2348 SwsContext *sws;
2349 static const double default_param[2] = { SWS_PARAM_DEFAULT,
2350 SWS_PARAM_DEFAULT };
2351
2352 if (!param)
2353 param = default_param;
2354
2355 if (prev && (prev->src_w == srcW &&
2356 prev->src_h == srcH &&
2357 prev->src_format == srcFormat &&
2358 prev->dst_w == dstW &&
2359 prev->dst_h == dstH &&
2360 prev->dst_format == dstFormat &&
2361 prev->flags == flags &&
2362 !memcmp(prev->scaler_params, param,
2363 sizeof(prev->scaler_params)))) {
2364 return prev;
2365 }
2366
2367 if (!(sws = sws_alloc_context())) {
2368 sws_free_context(&prev);
2369 return NULL;
2370 }
2371
2372 if (prev) {
2373 av_opt_copy(sws, prev);
2374 sws_free_context(&prev);
2375 }
2376
2377 sws->src_w = srcW;
2378 sws->src_h = srcH;
2379 sws->src_format = srcFormat;
2380 sws->dst_w = dstW;
2381 sws->dst_h = dstH;
2382 sws->dst_format = dstFormat;
2383 sws->flags = flags;
2384 for (int i = 0; i < SWS_NUM_SCALER_PARAMS; i++)
2385 sws->scaler_params[i] = param[i];
2386
2387 if (sws_init_context(sws, srcFilter, dstFilter) < 0)
2388 sws_free_context(&sws);
2389
2390 return sws;
2391}
2392
2393int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
2394{
2395 Range *tmp;
2396 unsigned int idx;
2397
2398 /* find the first existing range after the new one */
2399 for (idx = 0; idx < rl->nb_ranges; idx++)
2400 if (rl->ranges[idx].start > start)
2401 break;
2402
2403 /* check for overlap */
2404 if (idx > 0) {
2405 Range *prev = &rl->ranges[idx - 1];
2406 if (prev->start + prev->len > start)
2407 return AVERROR(EINVAL);
2408 }
2409 if (idx < rl->nb_ranges) {
2410 Range *next = &rl->ranges[idx];
2411 if (start + len > next->start)
2412 return AVERROR(EINVAL);
2413 }
2414
2415 tmp = av_fast_realloc(rl->ranges, &rl->ranges_allocated,
2416 (rl->nb_ranges + 1) * sizeof(*rl->ranges));
2417 if (!tmp)
2418 return AVERROR(ENOMEM);
2419 rl->ranges = tmp;
2420
2421 memmove(rl->ranges + idx + 1, rl->ranges + idx,
2422 sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2423 rl->ranges[idx].start = start;
2424 rl->ranges[idx].len = len;
2425 rl->nb_ranges++;
2426
2427 /* merge ranges */
2428 if (idx > 0) {
2429 Range *prev = &rl->ranges[idx - 1];
2430 Range *cur = &rl->ranges[idx];
2431 if (prev->start + prev->len == cur->start) {
2432 prev->len += cur->len;
2433 memmove(rl->ranges + idx - 1, rl->ranges + idx,
2434 sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2435 rl->nb_ranges--;
2436 idx--;
2437 }
2438 }
2439 if (idx < rl->nb_ranges - 1) {
2440 Range *cur = &rl->ranges[idx];
2441 Range *next = &rl->ranges[idx + 1];
2442 if (cur->start + cur->len == next->start) {
2443 cur->len += next->len;
2444 memmove(rl->ranges + idx, rl->ranges + idx + 1,
2445 sizeof(*rl->ranges) * (rl->nb_ranges - idx - 1));
2446 rl->nb_ranges--;
2447 }
2448 }
2449
2450 return 0;
2451}
2452
2453int ff_sws_thread_exec(void *priv,
2454 int (*func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
2455 int nb_threads, int nb_jobs)
2456{
2457 AVSliceThread *slicethread;
2458 int ret = avpriv_slicethread_create2(&slicethread, priv, func, NULL, nb_threads);
2459 if (ret == AVERROR(ENOSYS)) {
2460 /* Fallback for build configurations without threading */
2461 for (int i = 0; i < nb_jobs; i++) {
2462 int ret = func(priv, i, 0, nb_jobs, 1);
2463 if (ret)
2464 return ret;
2465 }
2466 return 0;
2467 } else if (ret < 0) {
2468 return ret;
2469 }
2470
2471 ret = avpriv_slicethread_execute2(slicethread, nb_jobs, 0);
2472 avpriv_slicethread_free(&slicethread);
2473 return ret;
2474}
format
static const char *const format[]
Definition af_aiir.c:445
float
float
Definition af_crystalizer.c:122
MAX_FILTER_SIZE
#define MAX_FILTER_SIZE
Definition af_dynaudnorm.c:36
ff_sws_alphablendaway
int ff_sws_alphablendaway(SwsInternal *c, const uint8_t *const src[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
Definition alphablend.c:23
ctx
static AVFormatContext * ctx
Definition api-movenc-test.c:49
A
#define A(x)
Definition vpx_arith.h:28
int32_t
int32_t
Definition audioconvert.c:58
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:68
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition avassert.h:42
V
#define V
Definition avdct.c:32
left
static int BS_FUNC left(const BSCTX *bc)
Return the number of the bits left in a buffer.
Definition bitstream_template.h:170
flag
#define flag(name)
Definition cbs_h264.c:60
ub
#define ub(width, name)
Definition cbs_h264.c:95
flags
#define flags(name, subs,...)
Definition cbs_h264.c:74
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
s
#define s(width, name)
Definition cbs_vp9.c:198
saturation
static IPT saturation(const CmsCtx *ctx, IPT ipt)
Definition cms.c:559
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition common.h:60
ROUNDED_DIV
#define ROUNDED_DIV(a, b)
Definition common.h:58
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition common.h:74
NULL
#define NULL
Definition coverity.c:32
int64_t
long long int64_t
Definition coverity.c:34
csp.h
Colorspace value utility functions for libavutil.
ceil
static __device__ float ceil(float a)
Definition cuda_runtime.h:176
min
#define min(a, b)
Definition cuda_runtime.h:34
max
#define max(a, b)
Definition cuda_runtime.h:33
emms_c
#define emms_c()
Definition emms.h:88
exp
int8_t exp
Definition eval.c:76
ff_sws_graph_free
void ff_sws_graph_free(SwsGraph **pgraph)
Uninitialize any state associate with this filter graph and free it.
Definition graph.c:942
fail
#define fail
Definition test.h:479
AVERROR_UNKNOWN
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition error.h:73
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition error.h:64
AVERROR
#define AVERROR(e)
Definition error.h:45
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition frame.c:64
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition frame.c:52
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition log.h:216
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition log.h:226
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition log.h:221
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
av_fast_realloc
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given buffer if it is not large enough, otherwise do nothing.
Definition mem.c:601
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:218
av_image_check_size2
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition imgutils.c:289
sws_freeFilter
void sws_freeFilter(SwsFilter *filter)
Definition utils.c:2164
SWS_CS_DEFAULT
#define SWS_CS_DEFAULT
Definition swscale.h:464
sws_getColorspaceDetails
int sws_getColorspaceDetails(SwsContext *sws, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation)
Definition utils.c:1006
sws_init_context
av_cold int sws_init_context(SwsContext *sws, SwsFilter *srcFilter, SwsFilter *dstFilter)
Initialize the swscaler context sws_context.
Definition utils.c:1893
SWS_SRC_V_CHR_DROP_MASK
#define SWS_SRC_V_CHR_DROP_MASK
Definition swscale.h:453
sws_freeVec
void sws_freeVec(SwsVector *a)
Definition utils.c:2155
sws_getDefaultFilter
SwsFilter * sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, float lumaSharpen, float chromaSharpen, float chromaHShift, float chromaVShift, int verbose)
Definition utils.c:2176
sws_isSupportedEndiannessConversion
int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
Definition format.c:299
sws_alloc_context
SwsContext * sws_alloc_context(void)
Allocate an empty SwsContext and set its fields to default values.
Definition utils.c:1031
sws_free_context
void sws_free_context(SwsContext **pctx)
Free the context and everything associated with it, and write NULL to the provided pointer.
Definition utils.c:2330
SWS_SRC_V_CHR_DROP_SHIFT
#define SWS_SRC_V_CHR_DROP_SHIFT
Definition swscale.h:454
sws_allocVec
SwsVector * sws_allocVec(int length)
Allocate and return an uninitialized vector with length coefficients.
Definition utils.c:1965
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:1982
sws_getCachedContext
SwsContext * sws_getCachedContext(SwsContext *prev, 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:2340
SwsBackend
SwsBackend
Definition swscale.h:110
sws_normalizeVec
void sws_normalizeVec(SwsVector *a, double height)
Scale all the coefficients of a so that their sum equals height.
Definition utils.c:2056
SWS_MAX_REDUCE_CUTOFF
#define SWS_MAX_REDUCE_CUTOFF
Filter kernel cut-off value.
Definition swscale.h:447
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:1928
SWS_PARAM_DEFAULT
#define SWS_PARAM_DEFAULT
Definition swscale.h:456
SwsScaler
SwsScaler
Definition swscale.h:96
sws_freeContext
void sws_freeContext(SwsContext *sws)
Free the swscaler context swsContext.
Definition utils.c:2259
sws_scaleVec
void sws_scaleVec(SwsVector *a, double scalar)
Scale all the coefficients of a by the scalar value.
Definition utils.c:2048
sws_setColorspaceDetails
int sws_setColorspaceDetails(SwsContext *sws, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)
Definition utils.c:848
SWS_DITHER_ED
@ SWS_DITHER_ED
Definition swscale.h:81
SWS_DITHER_A_DITHER
@ SWS_DITHER_A_DITHER
Definition swscale.h:82
SWS_DITHER_X_DITHER
@ SWS_DITHER_X_DITHER
Definition swscale.h:83
SWS_DITHER_AUTO
@ SWS_DITHER_AUTO
Definition swscale.h:79
SWS_DITHER_BAYER
@ SWS_DITHER_BAYER
Definition swscale.h:80
SWS_DITHER_NONE
@ SWS_DITHER_NONE
Definition swscale.h:78
SWS_ALPHA_BLEND_NONE
@ SWS_ALPHA_BLEND_NONE
Definition swscale.h:89
SWS_BACKEND_UNSTABLE
@ SWS_BACKEND_UNSTABLE
Definition swscale.h:121
SWS_BACKEND_STABLE
@ SWS_BACKEND_STABLE
Definition swscale.h:113
SWS_SCALE_SPLINE
@ SWS_SCALE_SPLINE
unwindowned natural cubic spline
Definition swscale.h:105
SWS_SCALE_POINT
@ SWS_SCALE_POINT
nearest neighbor (point sampling)
Definition swscale.h:100
SWS_SCALE_LANCZOS
@ SWS_SCALE_LANCZOS
3-tap sinc/sinc
Definition swscale.h:104
SWS_SCALE_BILINEAR
@ SWS_SCALE_BILINEAR
bilinear filtering
Definition swscale.h:98
SWS_SCALE_GAUSSIAN
@ SWS_SCALE_GAUSSIAN
2-tap gaussian approximation
Definition swscale.h:102
SWS_SCALE_BICUBIC
@ SWS_SCALE_BICUBIC
2-tap cubic BC-spline
Definition swscale.h:99
SWS_SCALE_AREA
@ SWS_SCALE_AREA
area averaging
Definition swscale.h:101
SWS_SCALE_SINC
@ SWS_SCALE_SINC
unwindowed sinc
Definition swscale.h:103
SWS_SCALE_AUTO
@ SWS_SCALE_AUTO
Definition swscale.h:97
SWS_PRINT_INFO
@ SWS_PRINT_INFO
Emit verbose log of scaling parameters.
Definition swscale.h:141
SWS_SPLINE
@ SWS_SPLINE
unwindowed natural cubic spline
Definition swscale.h:207
SWS_BICUBIC
@ SWS_BICUBIC
2-tap cubic B-spline
Definition swscale.h:199
SWS_BITEXACT
@ SWS_BITEXACT
Definition swscale.h:178
SWS_AREA
@ SWS_AREA
area averaging
Definition swscale.h:202
SWS_BICUBLIN
@ SWS_BICUBLIN
bicubic luma, bilinear chroma
Definition swscale.h:203
SWS_ERROR_DIFFUSION
@ SWS_ERROR_DIFFUSION
Set SwsContext.dither instead.
Definition swscale.h:191
SWS_BILINEAR
@ SWS_BILINEAR
bilinear filtering
Definition swscale.h:198
SWS_UNSTABLE
@ SWS_UNSTABLE
Allow/prefer using experimental new code paths.
Definition swscale.h:185
SWS_FULL_CHR_H_INP
@ SWS_FULL_CHR_H_INP
Perform full chroma interpolation when downscaling RGB sources.
Definition swscale.h:167
SWS_SINC
@ SWS_SINC
unwindowed sinc
Definition swscale.h:205
SWS_LANCZOS
@ SWS_LANCZOS
3-tap sinc/sinc
Definition swscale.h:206
SWS_GAUSS
@ SWS_GAUSS
gaussian approximation
Definition swscale.h:204
SWS_FAST_BILINEAR
@ SWS_FAST_BILINEAR
Scaler selection options.
Definition swscale.h:197
SWS_ACCURATE_RND
@ SWS_ACCURATE_RND
Force bit-exact output.
Definition swscale.h:177
SWS_X
@ SWS_X
experimental
Definition swscale.h:200
SWS_POINT
@ SWS_POINT
nearest neighbor
Definition swscale.h:201
SWS_FULL_CHR_H_INT
@ SWS_FULL_CHR_H_INT
Perform full chroma upsampling when upscaling to RGB.
Definition swscale.h:154
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:1758
av_opt_copy
int av_opt_copy(void *dst, const void *src)
Copy options from src object into dest object.
Definition opt.c:2219
a
int a
Definition h264pred_template.c:416
B
#define B
Definition huffyuv.h:42
map
const VDPAUPixFmtMap * map
Definition hwcontext_vdpau.c:71
imgutils.h
misc image utilities
b
#define b
Definition input.c:43
av_log2
#define av_log2
Definition intmath.h:84
AV_WL16
#define AV_WL16(p, v)
Definition intreadwrite.h:408
ff_sws_jit_alloc
void * ff_sws_jit_alloc(size_t size)
Definition jit.c:89
ff_sws_jit_free
void ff_sws_jit_free(void *ptr, size_t size)
Definition jit.c:99
ff_sws_jit_protect
int ff_sws_jit_protect(void *ptr, size_t size)
Definition jit.c:94
W
#define W(a, i, v)
Definition jpegls.h:119
ONE
#define ONE
Definition jrevdct.c:137
C
#define C
shift
static int shift(int a, int b)
Definition bonk.c:261
func
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition jacosubdec.c:66
from
const char * from
Definition jacosubdec.c:64
to
const char * to
Definition webvttdec.c:36
ff_frame_pool_uninit
av_cold void ff_frame_pool_uninit(FFFramePool *pool)
Deallocate the frame pool.
Definition framepool.c:215
have_neon
#define have_neon(flags)
Definition cpu.h:26
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition attributes.h:117
cpu_flags
static atomic_int cpu_flags
Definition cpu.c:56
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition cpu.c:109
AV_CPU_FLAG_SLOW_GATHER
#define AV_CPU_FLAG_SLOW_GATHER
CPU has slow gathers.
Definition cpu.h:62
AV_CPU_FLAG_MMX
#define AV_CPU_FLAG_MMX
standard MMX
Definition cpu.h:32
FF_ALLOC_TYPED_ARRAY
#define FF_ALLOC_TYPED_ARRAY(p, nelem)
Definition internal.h:80
FF_ALLOCZ_TYPED_ARRAY
#define FF_ALLOCZ_TYPED_ARRAY(p, nelem)
Definition internal.h:81
have_lsx
#define have_lsx(flags)
Definition cpu.h:28
have_lasx
#define have_lasx(flags)
Definition cpu.h:29
PPC_ALTIVEC
#define PPC_ALTIVEC(flags)
Definition cpu.h:25
AVOnce
#define AVOnce
Definition thread.h:202
ff_thread_once
static int ff_thread_once(char *control, void(*routine)(void))
Definition thread.h:205
AV_ONCE_INIT
#define AV_ONCE_INIT
Definition thread.h:203
EXTERNAL_AVX2_FAST
#define EXTERNAL_AVX2_FAST(flags)
Definition cpu.h:73
X86_MMX
#define X86_MMX(flags)
Definition cpu.h:25
INLINE_MMXEXT
#define INLINE_MMXEXT(flags)
Definition cpu.h:81
INLINE_MMX
#define INLINE_MMX(flags)
Definition cpu.h:80
ff_sws_context_class
const AVClass ff_sws_context_class
Definition options.c:124
sws_getConstVec
static SwsVector * sws_getConstVec(double c, int length)
Allocate and return a vector with length coefficients, all with the same value c.
Definition utils.c:2013
handle_0alpha
static int handle_0alpha(int *format)
Definition utils.c:810
handle_xyz
static int handle_xyz(int *format)
Definition utils.c:821
sws_getIdentityVec
static SwsVector * sws_getIdentityVec(void)
Allocate and return a vector with just one coefficient, with value 1.0.
Definition utils.c:2032
alphaless_fmt
static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
Definition utils.c:1059
sws_sumVec
static SwsVector * sws_sumVec(SwsVector *a, SwsVector *b)
Definition utils.c:2061
ff_shuffle_filter_coefficients
int ff_shuffle_filter_coefficients(SwsInternal *c, int *filterPos, int filterSize, int16_t *filter, int dstW)
Definition utils.c:96
ff_sws_init_single_context
av_cold int ff_sws_init_single_context(SwsContext *sws, SwsFilter *srcFilter, SwsFilter *dstFilter)
Definition utils.c:1136
alloc_set_opts
static SwsContext * 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 without performing initialization.
Definition utils.c:74
alloc_gamma_tbl
static uint16_t * alloc_gamma_tbl(double e)
Definition utils.c:1045
init_xyz_tables
static av_cold void init_xyz_tables(void)
Definition utils.c:713
scale_algorithms
static const ScaleAlgorithm scale_algorithms[]
Definition utils.c:182
context_init_threaded
static int context_init_threaded(SwsContext *sws, SwsFilter *src_filter, SwsFilter *dst_filter)
Definition utils.c:1846
sws_addVec
static void sws_addVec(SwsVector *a, SwsVector *b)
Definition utils.c:2111
handle_formats
static int handle_formats(SwsContext *sws)
Definition utils.c:830
getSplineCoeff
static double getSplineCoeff(double a, double b, double c, double d, double dist)
Definition utils.c:154
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 scaler, int flags, int cpu_flags, SwsVector *srcFilter, SwsVector *dstFilter, double param[SWS_NUM_SCALER_PARAMS], int srcPos, int dstPos)
Definition utils.c:196
ff_sws_enabled_backends
SwsBackend ff_sws_enabled_backends(const SwsContext *ctx)
Definition utils.c:59
xyzgammainv_tab
static uint16_t xyzgammainv_tab[65536]
Definition utils.c:712
ff_sws_thread_exec
int ff_sws_thread_exec(void *priv, int(*func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads), int nb_threads, int nb_jobs)
Helper for dispatching a single function across multiple threads.
Definition utils.c:2453
xyzgamma_tab
static uint16_t xyzgamma_tab[4096]
Definition utils.c:711
handle_jpeg
static int handle_jpeg(int *format)
Definition utils.c:772
makenan_vec
static void makenan_vec(SwsVector *a)
Definition utils.c:1958
sws_dcVec
static double sws_dcVec(SwsVector *a)
Definition utils.c:2037
isnan_vec
static int isnan_vec(SwsVector *a)
Definition utils.c:1949
sws_shiftVec
static void sws_shiftVec(SwsVector *a, int shift)
Definition utils.c:2097
get_local_pos
static av_cold int get_local_pos(SwsInternal *s, int chr_subsample, int pos, int dir)
Definition utils.c:167
ff_sws_fill_xyztables
av_cold int ff_sws_fill_xyztables(SwsInternal *c)
Definition utils.c:734
rgbgammainv_tab
static uint16_t rgbgammainv_tab[4096]
Definition utils.c:711
scaler_flag
static int scaler_flag(SwsScaler scaler, int fallback)
Definition utils.c:1120
ff_range_add
int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
Definition utils.c:2393
sws_getShiftedVec
static SwsVector * sws_getShiftedVec(SwsVector *a, int shift)
Definition utils.c:2079
sws_printVec2
static 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:2129
rgbgamma_tab
static uint16_t rgbgamma_tab[65536]
Definition utils.c:712
fill_rgb2yuv_table
static void fill_rgb2yuv_table(SwsInternal *c, const int table[4], int dstRange)
Definition utils.c:613
range_override_needed
static int range_override_needed(enum AVPixelFormat format)
Definition utils.c:843
FFSWAP
#define FFSWAP(type, a, b)
Definition macros.h:52
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
FFALIGN
#define FFALIGN(x, a)
Definition macros.h:78
NAN
#define NAN
Definition mathematics.h:115
M_PI
#define M_PI
Definition mathematics.h:67
range
enum AVColorRange range
Definition mediacodec_wrapper.c:2694
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition mem.c:370
mem.h
Memory handling functions.
c2
static const uint64_t c2
Definition murmur3.c:53
av_malloc
#define av_malloc(s)
Definition ops_static.c:52
opt.h
AVOptions.
sws_isSupportedOutput
#define sws_isSupportedOutput(x)
sws_isSupportedInput
#define sws_isSupportedInput(x)
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:3488
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:3412
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:3380
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:3515
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition pixdesc.c:3460
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition pixfmt.h:556
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition pixfmt.h:544
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition pixfmt.h:545
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition pixfmt.h:543
AV_PIX_FMT_BGR555
#define AV_PIX_FMT_BGR555
Definition pixfmt.h:538
AV_PIX_FMT_BGR48
#define AV_PIX_FMT_BGR48
Definition pixfmt.h:536
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition pixfmt.h:564
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition pixfmt.h:546
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition pixfmt.h:565
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition pixfmt.h:542
AV_PIX_FMT_RGB48
#define AV_PIX_FMT_RGB48
Definition pixfmt.h:531
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition pixfmt.h:588
AVPixelFormat
AVPixelFormat
Pixel format.
Definition pixfmt.h:71
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition pixfmt.h:104
AV_PIX_FMT_XYZ12LE
@ AV_PIX_FMT_XYZ12LE
packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as lit...
Definition pixfmt.h:196
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition pixfmt.h:72
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition pixfmt.h:75
AV_PIX_FMT_GRAY10LE
@ AV_PIX_FMT_GRAY10LE
Y , 10bpp, little-endian.
Definition pixfmt.h:321
AV_PIX_FMT_GBRP10BE
@ AV_PIX_FMT_GBRP10BE
planar GBR 4:4:4 30bpp, big-endian
Definition pixfmt.h:169
AV_PIX_FMT_YA16BE
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition pixfmt.h:209
AV_PIX_FMT_YUVA420P9BE
@ AV_PIX_FMT_YUVA420P9BE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian
Definition pixfmt.h:175
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition pixfmt.h:73
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition pixfmt.h:106
AV_PIX_FMT_GBRPF16BE
@ AV_PIX_FMT_GBRPF16BE
IEEE-754 half precision planer GBR 4:4:4, 48bpp, big-endian.
Definition pixfmt.h:466
AV_PIX_FMT_GBRPF32BE
@ AV_PIX_FMT_GBRPF32BE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, big-endian.
Definition pixfmt.h:341
AV_PIX_FMT_YUVA444P9LE
@ AV_PIX_FMT_YUVA444P9LE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
Definition pixfmt.h:180
AV_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition pixfmt.h:265
AV_PIX_FMT_YUVA444P10LE
@ AV_PIX_FMT_YUVA444P10LE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition pixfmt.h:186
AV_PIX_FMT_GBRP9LE
@ AV_PIX_FMT_GBRP9LE
planar GBR 4:4:4 27bpp, little-endian
Definition pixfmt.h:168
AV_PIX_FMT_GBRP10MSBBE
@ AV_PIX_FMT_GBRP10MSBBE
planar GBR 4:4:4 30bpp, lowest bits zero, big-endian
Definition pixfmt.h:495
AV_PIX_FMT_YUVA420P10BE
@ AV_PIX_FMT_YUVA420P10BE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition pixfmt.h:181
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition pixfmt.h:77
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition pixfmt.h:99
AV_PIX_FMT_GBRP12BE
@ AV_PIX_FMT_GBRP12BE
planar GBR 4:4:4 36bpp, big-endian
Definition pixfmt.h:279
AV_PIX_FMT_YUVA422P9LE
@ AV_PIX_FMT_YUVA422P9LE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian
Definition pixfmt.h:178
AV_PIX_FMT_GRAY12LE
@ AV_PIX_FMT_GRAY12LE
Y , 12bpp, little-endian.
Definition pixfmt.h:319
AV_PIX_FMT_GBRAP12BE
@ AV_PIX_FMT_GBRAP12BE
planar GBR 4:4:4:4 48bpp, big-endian
Definition pixfmt.h:310
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition pixfmt.h:102
AV_PIX_FMT_GRAY12BE
@ AV_PIX_FMT_GRAY12BE
Y , 12bpp, big-endian.
Definition pixfmt.h:318
AV_PIX_FMT_X2BGR10LE
@ AV_PIX_FMT_X2BGR10LE
packed BGR 10:10:10, 30bpp, (msb)2X 10B 10G 10R(lsb), little-endian, X=unused/undefined
Definition pixfmt.h:386
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition pixfmt.h:81
AV_PIX_FMT_BGR48BE
@ AV_PIX_FMT_BGR48BE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as big...
Definition pixfmt.h:145
AV_PIX_FMT_YA16LE
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition pixfmt.h:210
AV_PIX_FMT_YUVA420P10LE
@ AV_PIX_FMT_YUVA420P10LE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition pixfmt.h:182
AV_PIX_FMT_GRAY14LE
@ AV_PIX_FMT_GRAY14LE
Y , 14bpp, little-endian.
Definition pixfmt.h:361
AV_PIX_FMT_RGB48BE
@ AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition pixfmt.h:109
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition pixfmt.h:101
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition pixfmt.h:108
AV_PIX_FMT_YUVA422P10LE
@ AV_PIX_FMT_YUVA422P10LE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition pixfmt.h:184
AV_PIX_FMT_GBRPF16LE
@ AV_PIX_FMT_GBRPF16LE
IEEE-754 half precision planer GBR 4:4:4, 48bpp, little-endian.
Definition pixfmt.h:467
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition pixfmt.h:107
AV_PIX_FMT_RGBA64BE
@ AV_PIX_FMT_RGBA64BE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition pixfmt.h:202
AV_PIX_FMT_RGB8
@ AV_PIX_FMT_RGB8
packed RGB 3:3:2, 8bpp, (msb)3R 3G 2B(lsb)
Definition pixfmt.h:93
AV_PIX_FMT_GBRAP14BE
@ AV_PIX_FMT_GBRAP14BE
planar GBR 4:4:4:4 56bpp, big-endian
Definition pixfmt.h:432
AV_PIX_FMT_RGBA64LE
@ AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition pixfmt.h:203
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition pixfmt.h:264
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition pixfmt.h:80
AV_PIX_FMT_GBRAP16BE
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition pixfmt.h:213
AV_PIX_FMT_GBRPF32LE
@ AV_PIX_FMT_GBRPF32LE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, little-endian.
Definition pixfmt.h:342
AV_PIX_FMT_YUVA444P9BE
@ AV_PIX_FMT_YUVA444P9BE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), big-endian
Definition pixfmt.h:179
AV_PIX_FMT_BGR8
@ AV_PIX_FMT_BGR8
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
Definition pixfmt.h:90
AV_PIX_FMT_RGB444LE
@ AV_PIX_FMT_RGB444LE
packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), little-endian, X=unused/undefined
Definition pixfmt.h:136
AV_PIX_FMT_GBRP10MSBLE
@ AV_PIX_FMT_GBRP10MSBLE
planar GBR 4:4:4 30bpp, lowest bits zero, little-endian
Definition pixfmt.h:496
AV_PIX_FMT_RGB4_BYTE
@ AV_PIX_FMT_RGB4_BYTE
packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
Definition pixfmt.h:95
AV_PIX_FMT_BGR4_BYTE
@ AV_PIX_FMT_BGR4_BYTE
packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
Definition pixfmt.h:92
AV_PIX_FMT_YUVA420P9LE
@ AV_PIX_FMT_YUVA420P9LE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian
Definition pixfmt.h:176
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition pixfmt.h:100
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition pixfmt.h:78
AV_PIX_FMT_XYZ12BE
@ AV_PIX_FMT_XYZ12BE
packed XYZ 4:4:4, 36 bpp, (msb) 12X, 12Y, 12Z (lsb), the 2-byte value for each X/Y/Z is stored as big...
Definition pixfmt.h:197
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition pixfmt.h:174
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition pixfmt.h:283
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition pixfmt.h:212
AV_PIX_FMT_GBRP12LE
@ AV_PIX_FMT_GBRP12LE
planar GBR 4:4:4 36bpp, little-endian
Definition pixfmt.h:280
AV_PIX_FMT_GRAY9BE
@ AV_PIX_FMT_GRAY9BE
Y , 9bpp, big-endian.
Definition pixfmt.h:338
AV_PIX_FMT_YUVA444P16LE
@ AV_PIX_FMT_YUVA444P16LE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
Definition pixfmt.h:192
AV_PIX_FMT_YUVA422P10BE
@ AV_PIX_FMT_YUVA422P10BE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition pixfmt.h:183
AV_PIX_FMT_YUVA422P16BE
@ AV_PIX_FMT_YUVA422P16BE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, big-endian)
Definition pixfmt.h:189
AV_PIX_FMT_BGRA64BE
@ AV_PIX_FMT_BGRA64BE
packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is st...
Definition pixfmt.h:204
AV_PIX_FMT_GBRP16BE
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition pixfmt.h:171
AV_PIX_FMT_GBRAP12LE
@ AV_PIX_FMT_GBRAP12LE
planar GBR 4:4:4:4 48bpp, little-endian
Definition pixfmt.h:311
AV_PIX_FMT_GBRP9BE
@ AV_PIX_FMT_GBRP9BE
planar GBR 4:4:4 27bpp, big-endian
Definition pixfmt.h:167
AV_PIX_FMT_YUVA420P16LE
@ AV_PIX_FMT_YUVA420P16LE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
Definition pixfmt.h:188
AV_PIX_FMT_BGR444BE
@ AV_PIX_FMT_BGR444BE
packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), big-endian, X=unused/undefined
Definition pixfmt.h:139
AV_PIX_FMT_RGB48LE
@ AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
Definition pixfmt.h:110
AV_PIX_FMT_GBRAPF32BE
@ AV_PIX_FMT_GBRAPF32BE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, big-endian.
Definition pixfmt.h:343
AV_PIX_FMT_GBRP12MSBLE
@ AV_PIX_FMT_GBRP12MSBLE
planar GBR 4:4:4 36bpp, lowest bits zero, little-endian
Definition pixfmt.h:498
AV_PIX_FMT_BGR444LE
@ AV_PIX_FMT_BGR444LE
packed BGR 4:4:4, 16bpp, (msb)4X 4B 4G 4R(lsb), little-endian, X=unused/undefined
Definition pixfmt.h:138
AV_PIX_FMT_YUVA420P16BE
@ AV_PIX_FMT_YUVA420P16BE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, big-endian)
Definition pixfmt.h:187
AV_PIX_FMT_X2RGB10LE
@ AV_PIX_FMT_X2RGB10LE
packed RGB 10:10:10, 30bpp, (msb)2X 10R 10G 10B(lsb), little-endian, X=unused/undefined
Definition pixfmt.h:384
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition pixfmt.h:86
AV_PIX_FMT_GBRAPF32LE
@ AV_PIX_FMT_GBRAPF32LE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, little-endian.
Definition pixfmt.h:344
AV_PIX_FMT_GBRAP14LE
@ AV_PIX_FMT_GBRAP14LE
planar GBR 4:4:4:4 56bpp, little-endian
Definition pixfmt.h:433
AV_PIX_FMT_RGB444BE
@ AV_PIX_FMT_RGB444BE
packed RGB 4:4:4, 16bpp, (msb)4X 4R 4G 4B(lsb), big-endian, X=unused/undefined
Definition pixfmt.h:137
AV_PIX_FMT_BGR48LE
@ AV_PIX_FMT_BGR48LE
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as lit...
Definition pixfmt.h:146
AV_PIX_FMT_GBRP14LE
@ AV_PIX_FMT_GBRP14LE
planar GBR 4:4:4 42bpp, little-endian
Definition pixfmt.h:282
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition pixfmt.h:263
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition pixfmt.h:105
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition pixfmt.h:173
AV_PIX_FMT_GBRP10LE
@ AV_PIX_FMT_GBRP10LE
planar GBR 4:4:4 30bpp, little-endian
Definition pixfmt.h:170
AV_PIX_FMT_GBRAP10BE
@ AV_PIX_FMT_GBRAP10BE
planar GBR 4:4:4:4 40bpp, big-endian
Definition pixfmt.h:313
AV_PIX_FMT_GBRAPF16BE
@ AV_PIX_FMT_GBRAPF16BE
IEEE-754 half precision planar GBRA 4:4:4:4, 64bpp, big-endian.
Definition pixfmt.h:468
AV_PIX_FMT_BGRA64LE
@ AV_PIX_FMT_BGRA64LE
packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is st...
Definition pixfmt.h:205
AV_PIX_FMT_GBRAP10LE
@ AV_PIX_FMT_GBRAP10LE
planar GBR 4:4:4:4 40bpp, little-endian
Definition pixfmt.h:314
AV_PIX_FMT_PAL8
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition pixfmt.h:84
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition pixfmt.h:76
AV_PIX_FMT_GRAY9LE
@ AV_PIX_FMT_GRAY9LE
Y , 9bpp, little-endian.
Definition pixfmt.h:339
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition pixfmt.h:165
AV_PIX_FMT_GBRAP16LE
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition pixfmt.h:214
AV_PIX_FMT_GBRAPF16LE
@ AV_PIX_FMT_GBRAPF16LE
IEEE-754 half precision planar GBRA 4:4:4:4, 64bpp, little-endian.
Definition pixfmt.h:469
AV_PIX_FMT_GRAY10BE
@ AV_PIX_FMT_GRAY10BE
Y , 10bpp, big-endian.
Definition pixfmt.h:320
AV_PIX_FMT_YUVA444P10BE
@ AV_PIX_FMT_YUVA444P10BE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition pixfmt.h:185
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition pixfmt.h:140
AV_PIX_FMT_0RGB
@ AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition pixfmt.h:262
AV_PIX_FMT_GRAY14BE
@ AV_PIX_FMT_GRAY14BE
Y , 14bpp, big-endian.
Definition pixfmt.h:360
AV_PIX_FMT_GBRP14BE
@ AV_PIX_FMT_GBRP14BE
planar GBR 4:4:4 42bpp, big-endian
Definition pixfmt.h:281
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition pixfmt.h:87
AV_PIX_FMT_YUVA444P16BE
@ AV_PIX_FMT_YUVA444P16BE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, big-endian)
Definition pixfmt.h:191
AV_PIX_FMT_YUVA422P16LE
@ AV_PIX_FMT_YUVA422P16LE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
Definition pixfmt.h:190
AV_PIX_FMT_GBRP16LE
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition pixfmt.h:172
AV_PIX_FMT_YUVA422P9BE
@ AV_PIX_FMT_YUVA422P9BE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), big-endian
Definition pixfmt.h:177
AV_PIX_FMT_RGB4
@ AV_PIX_FMT_RGB4
packed RGB 1:2:1 bitstream, 4bpp, (msb)1R 2G 1B(lsb), a byte contains two pixels, the first pixel in ...
Definition pixfmt.h:94
AV_PIX_FMT_BGR4
@ AV_PIX_FMT_BGR4
packed RGB 1:2:1 bitstream, 4bpp, (msb)1B 2G 1R(lsb), a byte contains two pixels, the first pixel in ...
Definition pixfmt.h:91
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition pixfmt.h:85
AV_PIX_FMT_GBRP12MSBBE
@ AV_PIX_FMT_GBRP12MSBBE
planar GBR 4:4:4 36bpp, lowest bits zero, big-endian
Definition pixfmt.h:497
AV_PIX_FMT_BGR565
#define AV_PIX_FMT_BGR565
Definition pixfmt.h:537
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition pixfmt.h:557
AV_PIX_FMT_BGRA64
#define AV_PIX_FMT_BGRA64
Definition pixfmt.h:540
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition pixfmt.h:528
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition pixfmt.h:567
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition pixfmt.h:566
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition pixfmt.h:558
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition pixfmt.h:548
table
static const uint16_t table[]
Definition prosumer.c:203
av_refstruct_unref
void av_refstruct_unref(void *objp)
Decrement the reference count of the underlying object and automatically free the object if there are...
Definition refstruct.c:121
ff_sws_rgb2rgb_init
av_cold void ff_sws_rgb2rgb_init(void)
Definition rgb2rgb.c:127
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition sinewin_tablegen.c:29
ff_free_filters
int ff_free_filters(SwsInternal *c)
Definition slice.c:386
ff_init_filters
int ff_init_filters(SwsInternal *c)
Definition slice.c:246
avpriv_slicethread_free
void avpriv_slicethread_free(AVSliceThread **pctx)
Destroy slice threading context.
Definition slicethread.c:342
avpriv_slicethread_execute2
int avpriv_slicethread_execute2(AVSliceThread *ctx, int nb_jobs, int execute_main)
Execute slice threading.
Definition slicethread.c:337
avpriv_slicethread_create2
int avpriv_slicethread_create2(AVSliceThread **pctx, void *priv, int(*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads), int(*main_func)(void *priv), int nb_threads)
Create slice threading context.
Definition slicethread.c:328
AVSliceThread
struct AVSliceThread AVSliceThread
Definition slicethread.h:25
pos
unsigned int pos
Definition spdifenc.c:431
atomic_init
#define atomic_init(obj, value)
Definition stdatomic.h:119
AVClass
Describe the class of an AVClass context structure.
Definition log.h:76
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition pixdesc.h:57
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition pixdesc.h:69
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition pixdesc.h:105
RangeList::nb_ranges
unsigned int nb_ranges
Definition swscale_internal.h:93
Range::start
AVRational start
Definition vf_pseudocolor.c:118
Range::len
unsigned int len
Definition swscale_internal.h:88
ScaleAlgorithm::flag
int flag
flag associated to the algorithm
Definition utils.c:177
ScaleAlgorithm::size_factor
int size_factor
size factor used when initing the filters
Definition utils.c:179
ScaleAlgorithm::description
const char * description
human-readable description
Definition utils.c:178
SwsContext
Main external API structure.
Definition swscale.h:227
SwsContext::src_h
int src_h
Width and height of the source frame.
Definition swscale.h:272
SwsContext::dst_format
int dst_format
Destination pixel format.
Definition swscale.h:275
SwsContext::gamma_flag
int gamma_flag
Use gamma correct scaling.
Definition swscale.h:264
SwsContext::threads
int threads
How many threads to use for processing, or 0 for automatic selection.
Definition swscale.h:249
SwsContext::scaler
SwsScaler scaler
Scaling filter.
Definition swscale.h:294
SwsContext::dst_h
int dst_h
Width and height of the destination frame.
Definition swscale.h:273
SwsContext::alpha_blend
SwsAlphaBlend alpha_blend
Alpha blending mode.
Definition swscale.h:259
SwsContext::scaler_params
double scaler_params[SWS_NUM_SCALER_PARAMS]
Definition swscale.h:244
SwsContext::dst_w
int dst_w
Definition swscale.h:273
SwsContext::dst_h_chr_pos
int dst_h_chr_pos
Destination horizontal chroma position.
Definition swscale.h:281
SwsContext::scaler_sub
SwsScaler scaler_sub
Scaler used specifically for up/downsampling subsampled (chroma) planes.
Definition swscale.h:302
SwsContext::src_w
int src_w
Deprecated frame property overrides, for the legacy API only.
Definition swscale.h:272
SwsContext::src_format
int src_format
Source pixel format.
Definition swscale.h:274
SwsContext::src_v_chr_pos
int src_v_chr_pos
Source vertical chroma position in luma grid / 256.
Definition swscale.h:278
SwsContext::dst_v_chr_pos
int dst_v_chr_pos
Destination vertical chroma position.
Definition swscale.h:280
SwsContext::dither
SwsDither dither
Dither mode.
Definition swscale.h:254
SwsContext::dst_range
int dst_range
Destination is full range.
Definition swscale.h:277
SwsContext::flags
unsigned flags
Bitmask of SWS_*.
Definition swscale.h:238
SwsContext::src_range
int src_range
Source is full range.
Definition swscale.h:276
SwsContext::src_h_chr_pos
int src_h_chr_pos
Source horizontal chroma position.
Definition swscale.h:279
SwsFilter::chrV
SwsVector * chrV
Definition swscale.h:488
SwsFilter::lumH
SwsVector * lumH
Definition swscale.h:485
SwsFilter::lumV
SwsVector * lumV
Definition swscale.h:486
SwsFilter::chrH
SwsVector * chrH
Definition swscale.h:487
SwsInternal::parent
SwsContext * parent
Definition swscale_internal.h:342
SwsVector::coeff
double * coeff
pointer to the list of coefficients
Definition swscale.h:479
SwsVector::length
int length
number of coefficients in the vector
Definition swscale.h:480
ff_sws_init_scale
void ff_sws_init_scale(SwsInternal *c)
Definition swscale.c:697
ff_sws_slice_worker
int ff_sws_slice_worker(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads)
Definition swscale.c:1657
ff_sws_init_range_convert
av_cold void ff_sws_init_range_convert(SwsInternal *c)
Definition swscale.c:626
swscale.h
external API header
SWS_NUM_SCALER_PARAMS
#define SWS_NUM_SCALER_PARAMS
Extra parameters for fine-tuning certain scalers.
Definition swscale.h:243
swscale_internal.h
SWSINTERNAL_ADDITIONAL_ASM_SIZE
#define SWSINTERNAL_ADDITIONAL_ASM_SIZE
Definition swscale_internal.h:47
APCK_SIZE
#define APCK_SIZE
Definition swscale_internal.h:72
isBayer
static av_always_inline int isBayer(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:861
BU_IDX
#define BU_IDX
Definition swscale_internal.h:473
RV_IDX
#define RV_IDX
Definition swscale_internal.h:474
ff_init_hscaler_mmxext
int ff_init_hscaler_mmxext(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
Definition hscale_fast_bilinear_simd.c:30
isFloat
static av_always_inline int isFloat(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:883
isAnyRGB
static av_always_inline int isAnyRGB(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:875
RY_IDX
#define RY_IDX
Definition swscale_internal.h:468
BV_IDX
#define BV_IDX
Definition swscale_internal.h:476
is16BPS
static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:746
GV_IDX
#define GV_IDX
Definition swscale_internal.h:475
RETCODE_USE_CASCADE
#define RETCODE_USE_CASCADE
Definition swscale_internal.h:75
XYZ_GAMMA
#define XYZ_GAMMA
Definition swscale_internal.h:556
isGray
static av_always_inline int isGray(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:806
sws_internal
static SwsInternal * sws_internal(const SwsContext *sws)
Definition swscale_internal.h:79
GU_IDX
#define GU_IDX
Definition swscale_internal.h:472
ff_get_unscaled_swscale
void ff_get_unscaled_swscale(SwsInternal *c)
Set c->convert_unscaled to an unscaled converter if one exists for the specific source and destinatio...
Definition swscale_unscaled.c:2392
ff_sws_init_altivec_bufs
int ff_sws_init_altivec_bufs(SwsInternal *c)
BY_IDX
#define BY_IDX
Definition swscale_internal.h:470
RGB_GAMMA
#define RGB_GAMMA
Definition swscale_internal.h:557
ff_sws_free_altivec_bufs
void ff_sws_free_altivec_bufs(SwsInternal *c)
isALPHA
static av_always_inline int isALPHA(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:897
GY_IDX
#define GY_IDX
Definition swscale_internal.h:469
isPlanarRGB
static av_always_inline int isPlanarRGB(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:929
ff_yuv2rgb_c_init_tables
int ff_yuv2rgb_c_init_tables(SwsInternal *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
RU_IDX
#define RU_IDX
Definition swscale_internal.h:471
RGB2YUV_SHIFT
#define RGB2YUV_SHIFT
Definition swscale_internal.h:477
isBayer16BPS
static av_always_inline int isBayer16BPS(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:868
isNBPS
static av_always_inline int isNBPS(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:760
ff_yuv2rgb_coeffs
const int32_t ff_yuv2rgb_coeffs[11][4]
Definition yuv2rgb.c:47
isYUV
static av_always_inline int isYUV(enum AVPixelFormat pix_fmt)
Definition swscale_internal.h:774
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_mallocz
#define av_mallocz(s)
Definition tableprint_vlc.h:31
av_freep
#define av_freep(p)
Definition tableprint_vlc.h:35
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
error
static void error(const char *err)
Definition target_bsf_fuzzer.c:32
tmp
static uint8_t tmp[40]
Definition aes_ctr.c:52
filter
void(* filter)(uint8_t *src, ptrdiff_t stride, int qscale)
Definition h263dsp.c:29
height
#define height
Definition dsp.h:89
Z
#define Z
Definition uops_tmpl.h:88
coeff
static const double coeff[2][5]
Definition vf_owdenoise.c:80
quality
static const uint8_t quality[]
Definition vmixdec.c:58
len
int len
Definition vorbis_enc_data.h:426
c
static double c[64]
Definition vsrc_mptestsrc.c:89
ff_yuv2rgb_init_tables_ppc
av_cold void ff_yuv2rgb_init_tables_ppc(SwsInternal *c, const int inv_table[4], int brightness, int contrast, int saturation)
Definition yuv2rgb_altivec.c:638
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