FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/utils.c
Date: 2026-09-14 08:55:12
Exec Total Coverage
Lines: 777 1387 56.0%
Functions: 24 46 52.2%
Branches: 669 1242 53.9%
Line Branch Exec Source
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
59 462306 SwsBackend ff_sws_enabled_backends(const SwsContext *ctx)
60 {
61
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 462306 if (ctx->backends)
62 350097 return ctx->backends;
63
64 112209 SwsBackend fallback = SWS_BACKEND_STABLE;
65
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 112209 if (ctx->flags & SWS_UNSTABLE)
66 ✗ fallback |= SWS_BACKEND_UNSTABLE;
67
68 112209 return fallback;
69 }
70
71 /**
72 * Allocate and return an SwsContext without performing initialization.
73 */
74 5742 static 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 5742 SwsContext *sws = sws_alloc_context();
79
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 5742 if (!sws)
80 ✗ return NULL;
81
82 5742 sws->flags = flags;
83 5742 sws->src_w = srcW;
84 5742 sws->src_h = srcH;
85 5742 sws->dst_w = dstW;
86 5742 sws->dst_h = dstH;
87 5742 sws->src_format = srcFormat;
88 5742 sws->dst_format = dstFormat;
89
90
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 5746 for (int i = 0; param && i < SWS_NUM_SCALER_PARAMS; i++)
91 4 sws->scaler_params[i] = param[i];
92
93 5742 return sws;
94 }
95
96 118888 int 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 118888 int cpu_flags = av_get_cpu_flags();
103
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 118888 if (!filter)
104 ✗ return 0;
105
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 118888 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 118888 return 0;
152 }
153
154 ✗ static 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
167 471520 static av_cold int get_local_pos(SwsInternal *s, int chr_subsample, int pos, int dir)
168 {
169
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 471520 if (pos == -1 || pos <= -513) {
170 210639 pos = (128 << chr_subsample) - 128;
171 }
172 471520 pos += 128; // relative to ideal left edge
173 471520 return pos >> chr_subsample;
174 }
175
176 typedef 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
182 static 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
196 235760 static 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 235760 int64_t *filter = NULL;
208 235760 int64_t *filter2 = NULL;
209 235760 const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
210 235760 int ret = -1;
211
212 235760 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
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 235760 if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
216 ✗ goto nomem;
217
218
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 392484 if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
219 int i;
220 156724 filterSize = 1;
221
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 156724 if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
222 ✗ goto nomem;
223
224
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 39761707 for (i = 0; i < dstW; i++) {
225 39604983 filter[i * filterSize] = fone;
226 39604983 (*filterPos)[i] = i;
227 }
228
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 79036 } else if (scaler == SWS_POINT) { // lame looking point sampling mode
229 int i;
230 int64_t xDstInSrc;
231 301 filterSize = 1;
232
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 301 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
233 ✗ goto nomem;
234
235 301 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
236
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 87392 for (i = 0; i < dstW; i++) {
237 87091 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
238
239 87091 (*filterPos)[i] = xx;
240 87091 filter[i] = fone;
241 87091 xDstInSrc += xInc;
242 }
243
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 78735 } else if ((xInc <= (1 << 16) && (scaler == SWS_AREA)) ||
244 90 (scaler == SWS_FAST_BILINEAR)) { // bilinear upscale
245 int i;
246 int64_t xDstInSrc;
247 90 filterSize = 2;
248
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 90 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
249 ✗ goto nomem;
250
251 90 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
252
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 237390 for (i = 0; i < dstW; i++) {
253 237300 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
254 int j;
255
256 237300 (*filterPos)[i] = xx;
257 // bilinear upscale / linear interpolate / area averaging
258
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 711900 for (j = 0; j < filterSize; j++) {
259 474600 int64_t coeff = fone - FFABS((int64_t)xx * (1 << 16) - xDstInSrc) * (fone >> 16);
260
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 474600 if (coeff < 0)
261 ✗ coeff = 0;
262 474600 filter[i * filterSize + j] = coeff;
263 474600 xx++;
264 }
265 237300 xDstInSrc += xInc;
266 }
267 } else {
268 int64_t xDstInSrc;
269 78645 int sizeFactor = -1;
270
271
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 266082 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
272
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 266076 if (scaler == scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
273 78639 sizeFactor = scale_algorithms[i].size_factor;
274 78639 break;
275 }
276 }
277
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 78645 if (scaler == SWS_LANCZOS)
278
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 6 sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
279
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 78645 av_assert0(sizeFactor > 0);
280
281
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 78645 if (sizeFactor > 50) {
282 ✗ ret = AVERROR(EINVAL);
283 ✗ goto fail;
284 }
285
286
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 78645 if (xInc <= 1 << 16)
287 42314 filterSize = 1 + sizeFactor; // upscale
288 else
289 36331 filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
290
291
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 78645 filterSize = FFMIN(filterSize, srcW - 2);
292 78645 filterSize = FFMAX(filterSize, 1);
293
294 78645 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
295
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 78645 if (!filter)
296 ✗ goto nomem;
297 78645 xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
298
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 13585813 for (i = 0; i < dstW; i++) {
299 13507168 int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
300 int j;
301 13507168 (*filterPos)[i] = xx;
302
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 79624944 for (j = 0; j < filterSize; j++) {
303 66117776 int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
304 double floatd;
305 int64_t coeff;
306
307
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 66117776 if (xInc > 1 << 16)
308 23938633 d = d * dstW / srcW;
309 66117776 floatd = d * (1.0 / (1 << 30));
310
311
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 66117776 if (scaler == SWS_BICUBIC) {
312
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 47252797 int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
313
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 47252797 int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
314
315
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 47252797 if (d >= 1LL << 31) {
316 8397183 coeff = 0.0;
317 } else {
318 38855614 int64_t dd = (d * d) >> 30;
319 38855614 int64_t ddd = (dd * d) >> 30;
320
321
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 38855614 if (d < 1LL << 30)
322 19444920 coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
323 19444920 (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
324 19444920 (6 * (1 << 24) - 2 * B) * (1 << 30);
325 else
326 19410694 coeff = (-B - 6 * C) * ddd +
327 19410694 (6 * B + 30 * C) * dd +
328 19410694 (-12 * B - 48 * C) * d +
329 19410694 (8 * B + 24 * C) * (1 << 30);
330 }
331 47252797 coeff /= (1LL<<54)/fone;
332
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 18864979 } 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
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 18864979 } else if (scaler == SWS_AREA) {
346 288927 int64_t d2 = d - (1 << 29);
347
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 288927 if (d2 * xInc < -(1LL << (29 + 16)))
348 218924 coeff = 1.0 * (1LL << (30 + 16));
349
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 70003 else if (d2 * xInc < (1LL << (29 + 16)))
350 60908 coeff = -d2 * xInc + (1LL << (29 + 16));
351 else
352 9095 coeff = 0.0;
353 288927 coeff *= fone >> (30 + 16);
354
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 18576052 } 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
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 18576052 } else if (scaler == SWS_SINC) {
358 ✗ coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
359
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 18576052 } else if (scaler == SWS_LANCZOS) {
360
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 832 double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
361 1664 coeff = (d ? sin(floatd * M_PI) * sin(floatd * M_PI / p) /
362
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 832 (floatd * floatd * M_PI * M_PI / p) : 1.0) * fone;
363
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 832 if (floatd > p)
364 90 coeff = 0;
365
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 18575220 } else if (scaler == SWS_BILINEAR) {
366 18575220 coeff = (1 << 30) - d;
367
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 18575220 if (coeff < 0)
368 6159680 coeff = 0;
369 18575220 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 66117776 filter[i * filterSize + j] = coeff;
378 66117776 xx++;
379 }
380 13507168 xDstInSrc += 2LL * xInc;
381 }
382 }
383
384 /* apply src & dst Filter to filter -> filter2
385 * av_free(filter);
386 */
387
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 235760 av_assert0(filterSize > 0);
388 235760 filter2Size = filterSize;
389
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 235760 if (srcFilter)
390 ✗ filter2Size += srcFilter->length - 1;
391
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 235760 if (dstFilter)
392 ✗ filter2Size += dstFilter->length - 1;
393
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 235760 av_assert0(filter2Size > 0);
394 235760 filter2 = av_calloc(dstW, filter2Size * sizeof(*filter2));
395
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 235760 if (!filter2)
396 ✗ goto nomem;
397
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 53672302 for (i = 0; i < dstW; i++) {
398 int j, k;
399
400
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 53436542 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
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 159720992 for (j = 0; j < filterSize; j++)
408 106284450 filter2[i * filter2Size + j] = filter[i * filterSize + j];
409 }
410 // FIXME dstFilter
411
412 53436542 (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
413 }
414 235760 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 235760 minFilterSize = 0;
419
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 53672302 for (i = dstW - 1; i >= 0; i--) {
420 53436542 int min = filter2Size;
421 int j;
422 53436542 int64_t cutOff = 0.0;
423
424 /* get rid of near zero elements on the left by shifting left */
425
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 59649399 for (j = 0; j < filter2Size; j++) {
426 int k;
427 59649399 cutOff += FFABS(filter2[i * filter2Size]);
428
429
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 59649399 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
430 53433721 break;
431
432 /* preserve monotonicity because the core can't handle the
433 * filter otherwise */
434
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 6215678 if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
435 2821 break;
436
437 // move filter coefficients left
438
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 28486364 for (k = 1; k < filter2Size; k++)
439 22273507 filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
440 6212857 filter2[i * filter2Size + k - 1] = 0;
441 6212857 (*filterPos)[i]++;
442 }
443
444 53436542 cutOff = 0;
445 /* count near zeros on the right */
446
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 68068782 for (j = filter2Size - 1; j > 0; j--) {
447 28341770 cutOff += FFABS(filter2[i * filter2Size + j]);
448
449
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 28341770 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
450 13709530 break;
451 14632240 min--;
452 }
453
454
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 53436542 if (min > minFilterSize)
455 236468 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
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 235760 if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX || have_neon(cpu_flags)) {
471 // special case for unscaled vertical filtering
472
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 131692 if (minFilterSize == 1 && filterAlign == 2)
473 37720 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
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 235760 av_assert0(minFilterSize > 0);
486 235760 filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
487
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 235760 av_assert0(filterSize > 0);
488 235760 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
489
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 235760 if (!filter)
490 ✗ goto nomem;
491
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 235760 if (filterSize >= MAX_FILTER_SIZE * 16 /
492
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 235760 ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
493 ✗ ret = RETCODE_USE_CASCADE;
494 ✗ goto fail;
495 }
496 235760 *outFilterSize = filterSize;
497
498
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 235760 if (flags & SWS_PRINT_INFO)
499 8 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
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 53672302 for (i = 0; i < dstW; i++) {
504 int j;
505
506
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 177110249 for (j = 0; j < filterSize; j++) {
507
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 123673707 if (j >= filter2Size)
508 27063170 filter[i * filterSize + j] = 0;
509 else
510 96610537 filter[i * filterSize + j] = filter2[i * filter2Size + j];
511
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 123673707 if ((flags & SWS_BITEXACT) && j >= minFilterSize)
512 25532160 filter[i * filterSize + j] = 0;
513 }
514 }
515
516 // FIXME try to align filterPos if possible
517
518 // fix borders
519
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 53672302 for (i = 0; i < dstW; i++) {
520 int j;
521
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 53436542 if ((*filterPos)[i] < 0) {
522 // move filter coefficients left to compensate for filterPos
523
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 279529 for (j = 1; j < filterSize; j++) {
524 230948 int left = FFMAX(j + (*filterPos)[i], 0);
525 230948 filter[i * filterSize + left] += filter[i * filterSize + j];
526 230948 filter[i * filterSize + j] = 0;
527 }
528 48581 (*filterPos)[i]= 0;
529 }
530
531
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 53436542 if ((*filterPos)[i] + filterSize > srcW) {
532 301771 int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
533 301771 int64_t acc = 0;
534
535
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 1569466 for (j = filterSize - 1; j >= 0; j--) {
536
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 1267695 if ((*filterPos)[i] + j >= srcW) {
537 523027 acc += filter[i * filterSize + j];
538 523027 filter[i * filterSize + j] = 0;
539 }
540 }
541
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 1569466 for (j = filterSize - 1; j >= 0; j--) {
542
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 1267695 if (j < shift) {
543 523027 filter[i * filterSize + j] = 0;
544 } else {
545 744668 filter[i * filterSize + j] = filter[i * filterSize + j - shift];
546 }
547 }
548
549 301771 (*filterPos)[i]-= shift;
550 301771 filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
551 }
552
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 53436542 av_assert0((*filterPos)[i] >= 0);
553
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 53436542 av_assert0((*filterPos)[i] < srcW);
554
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 53436542 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 235760 *outFilter = av_calloc(dstW + 3, *outFilterSize * sizeof(**outFilter));
564
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 235760 if (!*outFilter)
565 ✗ goto nomem;
566
567 /* normalize & store in outFilter */
568
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 53672302 for (i = 0; i < dstW; i++) {
569 int j;
570 53436542 int64_t error = 0;
571 53436542 int64_t sum = 0;
572
573
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 177110249 for (j = 0; j < filterSize; j++) {
574 123673707 sum += filter[i * filterSize + j];
575 }
576 53436542 sum = (sum + one / 2) / one;
577
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 53436542 if (!sum) {
578 ✗ av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
579 ✗ sum = 1;
580 }
581
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 177110249 for (j = 0; j < *outFilterSize; j++) {
582 123673707 int64_t v = filter[i * filterSize + j] + error;
583
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 123673707 int intV = ROUNDED_DIV(v, sum);
584 123673707 (*outFilter)[i * (*outFilterSize) + j] = intV;
585 123673707 error = v - intV * sum;
586 }
587 }
588
589 235760 (*filterPos)[dstW + 0] =
590 235760 (*filterPos)[dstW + 1] =
591 235760 (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
592 * read over the end */
593
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 838442 for (i = 0; i < *outFilterSize; i++) {
594 602682 int k = (dstW - 1) * (*outFilterSize) + i;
595 602682 (*outFilter)[k + 1 * (*outFilterSize)] =
596 602682 (*outFilter)[k + 2 * (*outFilterSize)] =
597 602682 (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
598 }
599
600 235760 ret = 0;
601 235760 goto done;
602 ✗ nomem:
603 ✗ ret = AVERROR(ENOMEM);
604 ✗ fail:
605 ✗ if(ret < 0)
606 ✗ av_log(NULL, ret == RETCODE_USE_CASCADE ? AV_LOG_DEBUG : AV_LOG_ERROR, "sws: initFilter failed\n");
607 ✗ done:
608 235760 av_free(filter);
609 235760 av_free(filter2);
610 235760 return ret;
611 }
612
613 39757 static void fill_rgb2yuv_table(SwsInternal *c, const int table[4], int dstRange)
614 {
615 int64_t W, V, Z, Cy, Cu, Cv;
616 39757 int64_t vr = table[0];
617 39757 int64_t ub = table[1];
618 39757 int64_t ug = -table[2];
619 39757 int64_t vg = -table[3];
620 39757 int64_t ONE = 65536;
621 39757 int64_t cy = ONE;
622 39757 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 39757 dstRange = 0; //FIXME range = 1 is handled elsewhere
663
664
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 39757 if (!dstRange) {
665 39757 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
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 39757 W = ROUNDED_DIV(ONE*ONE*ug, ub);
673
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 39757 V = ROUNDED_DIV(ONE*ONE*vg, vr);
674 39757 Z = ONE*ONE-W-V;
675
676
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 39757 Cy = ROUNDED_DIV(cy*Z, ONE);
677
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 39757 Cu = ROUNDED_DIV(ub*Z, ONE);
678
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 39757 Cv = ROUNDED_DIV(vr*Z, ONE);
679
680
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 39757 c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
681 39757 c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
682
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 39757 c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
683
684
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 39757 c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
685 39757 c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
686
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 39757 c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
687
688
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 39757 c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
689 39757 c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
690
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 39757 c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
691
692
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 39757 if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
693 39757 c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
694 39757 c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
695 39757 c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
696 39757 c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
697 39757 c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
698 39757 c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
699 39757 c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
700 39757 c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
701 39757 c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
702 }
703
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 11171717 for(i=0; i<FF_ARRAY_ELEMS(map); i++)
704
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 11131960 AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
705 39757 }
706
707 #if CONFIG_SMALL
708 static 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
711 static uint16_t xyzgamma_tab[4096], rgbgammainv_tab[4096];
712 static uint16_t rgbgamma_tab[65536], xyzgammainv_tab[65536];
713 38 static av_cold void init_xyz_tables(void)
714 #endif
715 {
716 38 double xyzgamma = XYZ_GAMMA;
717 38 double rgbgamma = 1.0 / RGB_GAMMA;
718 38 double xyzgammainv = 1.0 / XYZ_GAMMA;
719 38 double rgbgammainv = RGB_GAMMA;
720
721 /* set input gamma vectors */
722
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 155686 for (int i = 0; i < 4096; i++) {
723 155648 xyzgamma_tab[i] = lrint(pow(i / 4095.0, xyzgamma) * 65535.0);
724 155648 rgbgammainv_tab[i] = lrint(pow(i / 4095.0, rgbgammainv) * 65535.0);
725 }
726
727 /* set output gamma vectors */
728
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 2490406 for (int i = 0; i < 65536; i++) {
729 2490368 rgbgamma_tab[i] = lrint(pow(i / 65535.0, rgbgamma) * 4095.0);
730 2490368 xyzgammainv_tab[i] = lrint(pow(i / 65535.0, xyzgammainv) * 4095.0);
731 }
732 38 }
733
734 164 av_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
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 164 if (c->xyz2rgb.gamma.in)
746 100 return 0;
747
748 64 memcpy(c->xyz2rgb.mat, xyz2rgb_matrix, sizeof(c->xyz2rgb.mat));
749 64 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 64 c->xyz2rgb.gamma.in = xyzgamma_tab;
762 64 c->xyz2rgb.gamma.out = rgbgamma_tab;
763 64 c->rgb2xyz.gamma.in = rgbgammainv_tab;
764 64 c->rgb2xyz.gamma.out = xyzgammainv_tab;
765
766 static AVOnce xyz_init_static_once = AV_ONCE_INIT;
767 64 ff_thread_once(&xyz_init_static_once, init_xyz_tables);
768 #endif
769 64 return 0;
770 }
771
772 91376 static int handle_jpeg(/* enum AVPixelFormat */ int *format)
773 {
774
7/7
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 91376 switch (*format) {
775 99 case AV_PIX_FMT_YUVJ420P:
776 99 *format = AV_PIX_FMT_YUV420P;
777 99 return 1;
778 16 case AV_PIX_FMT_YUVJ411P:
779 16 *format = AV_PIX_FMT_YUV411P;
780 16 return 1;
781 53 case AV_PIX_FMT_YUVJ422P:
782 53 *format = AV_PIX_FMT_YUV422P;
783 53 return 1;
784 356 case AV_PIX_FMT_YUVJ444P:
785 356 *format = AV_PIX_FMT_YUV444P;
786 356 return 1;
787 44 case AV_PIX_FMT_YUVJ440P:
788 44 *format = AV_PIX_FMT_YUV440P;
789 44 return 1;
790 4499 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 4499 return 1;
805 86309 default:
806 86309 return 0;
807 }
808 }
809
810 400926 static int handle_0alpha(/* enum AVPixelFormat */ int *format)
811 {
812
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 400926 switch (*format) {
813 309 case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
814 346 case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
815 276 case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
816 296 case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
817 399699 default: return 0;
818 }
819 }
820
821 400926 static int handle_xyz(/* enum AVPixelFormat */ int *format)
822 {
823
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 400926 switch (*format) {
824 14 case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
825 38 case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
826 400874 default: return 0;
827 }
828 }
829
830 200463 static int handle_formats(SwsContext *sws)
831 {
832 200463 SwsInternal *c = sws_internal(sws);
833 200463 c->src0Alpha |= handle_0alpha(&sws->src_format);
834 200463 c->dst0Alpha |= handle_0alpha(&sws->dst_format);
835 200463 c->srcXYZ |= handle_xyz(&sws->src_format);
836 200463 c->dstXYZ |= handle_xyz(&sws->dst_format);
837
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 200463 if (c->srcXYZ || c->dstXYZ)
838 150 return ff_sws_fill_xyztables(c);
839 else
840 200313 return 0;
841 }
842
843 342192 static int range_override_needed(enum AVPixelFormat format)
844 {
845
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 342192 return !isYUV(format) && !isGray(format);
846 }
847
848 131584 int 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 131584 SwsInternal *c = sws_internal(sws);
853 const AVPixFmtDescriptor *desc_dst;
854 const AVPixFmtDescriptor *desc_src;
855 131584 int ret, need_reinit = 0;
856
857
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 131584 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 131584 ret = handle_formats(sws);
871
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 131584 if (ret < 0)
872 ✗ return ret;
873 131584 desc_dst = av_pix_fmt_desc_get(sws->dst_format);
874 131584 desc_src = av_pix_fmt_desc_get(sws->src_format);
875
876
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 131584 if(range_override_needed(sws->dst_format))
877 27103 dstRange = 0;
878
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 131584 if(range_override_needed(sws->src_format))
879 54561 srcRange = 0;
880
881
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 131584 if (sws->src_range != srcRange ||
882
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 112569 sws->dst_range != dstRange ||
883
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 110807 c->brightness != brightness ||
884
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 110807 c->contrast != contrast ||
885
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 62705 c->saturation != saturation ||
886
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 62705 memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
887
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 62544 memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
888 )
889 69040 need_reinit = 1;
890
891 131584 memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
892 131584 memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
893
894
895
896 131584 c->brightness = brightness;
897 131584 c->contrast = contrast;
898 131584 c->saturation = saturation;
899 131584 sws->src_range = srcRange;
900 131584 sws->dst_range = dstRange;
901
902
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 131584 if (need_reinit)
903 69040 ff_sws_init_range_convert(c);
904
905 131584 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
906 131584 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
907
908
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 131584 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
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 131584 if (!need_reinit)
912 62544 return 0;
913
914
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 69040 if ((isYUV(sws->dst_format) || isGray(sws->dst_format)) && (isYUV(sws->src_format) || isGray(sws->src_format))) {
915
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 29283 if (!c->cascaded_context[0] &&
916
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 29283 memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
917
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 1 sws->src_w && sws->src_h && sws->dst_w && sws->dst_h) {
918 enum AVPixelFormat tmp_format;
919 int tmp_width, tmp_height;
920 1 int srcW = sws->src_w;
921 1 int srcH = sws->src_h;
922 1 int dstW = sws->dst_w;
923 1 int dstH = sws->dst_h;
924 int ret;
925 1 av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
926
927
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 1 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
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 1 if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
935 ✗ tmp_format = AV_PIX_FMT_BGRA;
936 } else {
937 1 tmp_format = AV_PIX_FMT_BGR24;
938 }
939 }
940
941
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 1 if (srcW*srcH > dstW*dstH) {
942 ✗ tmp_width = dstW;
943 ✗ tmp_height = dstH;
944 } else {
945 1 tmp_width = srcW;
946 1 tmp_height = srcH;
947 }
948
949 1 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
950 tmp_width, tmp_height, tmp_format, 64);
951
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 1 if (ret < 0)
952 ✗ return ret;
953
954 2 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, sws->src_format,
955 tmp_width, tmp_height, tmp_format,
956 1 sws->flags, sws->scaler_params);
957
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 1 if (!c->cascaded_context[0])
958 ✗ return -1;
959
960 1 c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
961 1 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
962
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 1 if (ret < 0)
963 ✗ return ret;
964 //we set both src and dst depending on that the RGB side will be ignored
965 1 sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
966 srcRange, table, dstRange,
967 brightness, contrast, saturation);
968
969 2 c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
970 1 dstW, dstH, sws->dst_format,
971 1 sws->flags, sws->scaler_params);
972
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 1 if (!c->cascaded_context[1])
973 ✗ return -1;
974 1 c->cascaded_context[1]->src_range = srcRange;
975 1 c->cascaded_context[1]->dst_range = dstRange;
976 1 ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
977
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 1 if (ret < 0)
978 ✗ return ret;
979 1 sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
980 srcRange, table, dstRange,
981 0, 1 << 16, 1 << 16);
982 1 return 0;
983 }
984 //We do not support this combination currently, we need to cascade more contexts to compensate
985
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 29282 if (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
986 ✗ return -1; //AVERROR_PATCHWELCOME;
987 29282 return 0;
988 }
989
990
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 39757 if (!isYUV(sws->dst_format) && !isGray(sws->dst_format)) {
991 16365 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 39757 fill_rgb2yuv_table(c, table, dstRange);
1002
1003 39757 return 0;
1004 }
1005
1006 39512 int sws_getColorspaceDetails(SwsContext *sws, int **inv_table,
1007 int *srcRange, int **table, int *dstRange,
1008 int *brightness, int *contrast, int *saturation)
1009 {
1010 39512 SwsInternal *c = sws_internal(sws);
1011
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 39512 if (!c)
1012 ✗ return -1;
1013
1014
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 39512 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 39512 *inv_table = c->srcColorspaceTable;
1021 39512 *table = c->dstColorspaceTable;
1022
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 39512 *srcRange = range_override_needed(sws->src_format) ? 1 : sws->src_range;
1023
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 39512 *dstRange = range_override_needed(sws->dst_format) ? 1 : sws->dst_range;
1024 39512 *brightness = c->brightness;
1025 39512 *contrast = c->contrast;
1026 39512 *saturation = c->saturation;
1027
1028 39512 return 0;
1029 }
1030
1031 89133 SwsContext *sws_alloc_context(void)
1032 {
1033 89133 SwsInternal *c = av_mallocz(sizeof(*c) + SWSINTERNAL_ADDITIONAL_ASM_SIZE);
1034
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 89133 if (!c)
1035 ✗ return NULL;
1036
1037 89133 c->opts.av_class = &ff_sws_context_class;
1038 89133 av_opt_set_defaults(c);
1039 89133 atomic_init(&c->stride_unaligned_warned, 0);
1040 89133 atomic_init(&c->data_unaligned_warned, 0);
1041
1042 89133 return &c->opts;
1043 }
1044
1045 ✗ static 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
1059 1873 static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1060 {
1061
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 1873 switch(fmt) {
1062 12 case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1063 12 case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1064 2 case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1065 220 case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1066 20 case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1067
1068 616 case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1069 3 case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1070 156 case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1071
1072 51 case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1073
1074 1 case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1075 ✗ case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1076
1077 1 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 1 case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1084 ✗ case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1085
1086 1 case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1087 10 case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1088 1 case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1089 ✗ case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1090
1091 10 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 10 case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1111 4 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 742 default: return AV_PIX_FMT_NONE;
1117 }
1118 }
1119
1120 137758 static int scaler_flag(SwsScaler scaler, int fallback)
1121 {
1122
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 137758 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 3 case SWS_SCALE_LANCZOS: return SWS_LANCZOS; break;
1130 ✗ case SWS_SCALE_SPLINE: return SWS_SPLINE; break;
1131 137755 default:
1132 137755 return fallback;
1133 }
1134 }
1135
1136 68879 av_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 68879 SwsInternal *c = sws_internal(sws);
1143 68879 SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1144 68879 int srcW = sws->src_w;
1145 68879 int srcH = sws->src_h;
1146 68879 int dstW = sws->dst_w;
1147 68879 int dstH = sws->dst_h;
1148 68879 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 68879 int ret = 0;
1154 enum AVPixelFormat tmpFmt;
1155 static const float float_mult = 1.0f / 255.0f;
1156
1157 68879 cpu_flags = av_get_cpu_flags();
1158 68879 flags = sws->flags;
1159 68879 emms_c();
1160
1161
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 68879 unscaled = (srcW == dstW && srcH == dstH);
1162
1163
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 68879 if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1164 68879 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 68879 ret = handle_formats(sws);
1169
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 68879 if (ret < 0)
1170 ✗ return ret;
1171 68879 srcFormat = sws->src_format;
1172 68879 dstFormat = sws->dst_format;
1173 68879 desc_src = av_pix_fmt_desc_get(srcFormat);
1174 68879 desc_dst = av_pix_fmt_desc_get(dstFormat);
1175
1176 // If the source has no alpha then disable alpha blendaway
1177
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 68879 if (c->src0Alpha)
1178 1141 sws->alpha_blend = SWS_ALPHA_BLEND_NONE;
1179
1180
5/6
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 69420 if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1181 541 av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1182
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 68879 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
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 68879 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 68879 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
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 68879 if (!i) {
1209
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 5673 if (dstW < srcW && dstH < srcH)
1210 ✗ i = SWS_BICUBIC;
1211
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 5673 else if (dstW > srcW && dstH > srcH)
1212 ✗ i = SWS_BICUBIC;
1213 else
1214 5673 i = SWS_BICUBIC;
1215 5673 flags |= i;
1216 5673 sws->flags = flags;
1217
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 63206 } 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
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 68879 if (i == SWS_FAST_BILINEAR) {
1224
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 1 if (srcW < 8 || dstW <= 8) {
1225 ✗ i = SWS_BILINEAR;
1226 ✗ flags ^= SWS_FAST_BILINEAR | i;
1227 ✗ sws->flags = flags;
1228 }
1229 }
1230
1231
2/2
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 68879 SwsScaler scaler_sub = sws->scaler_sub ? sws->scaler_sub : sws->scaler;
1232
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 68879 int lum_scaler = scaler_flag(sws->scaler, i == SWS_BICUBLIN ? SWS_BICUBIC : i);
1233
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 68879 int chr_scaler = scaler_flag(scaler_sub, i == SWS_BICUBLIN ? SWS_BILINEAR : i);
1234
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 68878 const int info_scaler = sws->scaler == SWS_SCALE_AUTO &&
1235
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 1 i == SWS_BICUBLIN &&
1236
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 137757 chr_scaler == SWS_BILINEAR ? i : lum_scaler;
1237
1238 /* sanity check */
1239
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 68879 if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1240 /* FIXME check if these are enough and try to lower them after
1241 * fixing the relevant parts of the code */
1242 ✗ av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1243 srcW, srcH, dstW, dstH);
1244 ✗ return AVERROR(EINVAL);
1245 }
1246
1247
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 68879 if (!dstFilter)
1248 68879 dstFilter = &dummyFilter;
1249
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 68879 if (!srcFilter)
1250 68879 srcFilter = &dummyFilter;
1251
1252 68879 int64_t lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1253 68879 int64_t lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1254 68879 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1255 68879 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1256 68879 c->vRounder = 4 * 0x0001000100010001ULL;
1257
1258 ✗ usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1259
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 68879 (srcFilter->chrV && srcFilter->chrV->length > 1) ||
1260
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 206637 (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1261
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 68879 (dstFilter->chrV && dstFilter->chrV->length > 1);
1262 ✗ usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1263
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 68879 (srcFilter->chrH && srcFilter->chrH->length > 1) ||
1264
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 206637 (dstFilter->lumH && dstFilter->lumH->length > 1) ||
1265
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 68879 (dstFilter->chrH && dstFilter->chrH->length > 1);
1266
1267 68879 av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1268 68879 av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1269
1270 68879 c->dst_slice_align = 1 << c->chrDstVSubSample;
1271
1272
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 68879 if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
1273
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 9275 if (dstW&1) {
1274 50 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1275 50 flags |= SWS_FULL_CHR_H_INT;
1276 50 sws->flags = flags;
1277 }
1278
1279
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 9275 if ( c->chrSrcHSubSample == 0
1280
2/2
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 1493 && c->chrSrcVSubSample == 0
1281
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 1355 && sws->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
1282
1/2
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 1355 && !(sws->flags & SWS_FAST_BILINEAR)
1283 ) {
1284 1355 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1285 1355 flags |= SWS_FULL_CHR_H_INT;
1286 1355 sws->flags = flags;
1287 }
1288 }
1289
1290
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 68879 if (sws->dither == SWS_DITHER_AUTO) {
1291
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 57959 if (flags & SWS_ERROR_DIFFUSION)
1292 ✗ sws->dither = SWS_DITHER_ED;
1293 }
1294
1295
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 68879 if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
1296
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 68762 dstFormat == AV_PIX_FMT_RGB4_BYTE ||
1297
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 68687 dstFormat == AV_PIX_FMT_BGR8 ||
1298 dstFormat == AV_PIX_FMT_RGB8) {
1299
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 253 if (sws->dither == SWS_DITHER_AUTO)
1300
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 253 sws->dither = (flags & SWS_FULL_CHR_H_INT) ? SWS_DITHER_ED : SWS_DITHER_BAYER;
1301
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 253 if (!(flags & SWS_FULL_CHR_H_INT)) {
1302
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 234 if (sws->dither == SWS_DITHER_ED || sws->dither == SWS_DITHER_A_DITHER || sws->dither == SWS_DITHER_X_DITHER || sws->dither == SWS_DITHER_NONE) {
1303 ✗ av_log(c, AV_LOG_DEBUG,
1304 "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1305 av_get_pix_fmt_name(dstFormat));
1306 ✗ flags |= SWS_FULL_CHR_H_INT;
1307 ✗ sws->flags = flags;
1308 }
1309 }
1310
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 253 if (flags & SWS_FULL_CHR_H_INT) {
1311
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 19 if (sws->dither == SWS_DITHER_BAYER) {
1312 ✗ av_log(c, AV_LOG_DEBUG,
1313 "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1314 av_get_pix_fmt_name(dstFormat));
1315 ✗ sws->dither = SWS_DITHER_ED;
1316 }
1317 }
1318 }
1319
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 68879 if (isPlanarRGB(dstFormat)) {
1320
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 5190 if (!(flags & SWS_FULL_CHR_H_INT)) {
1321 816 av_log(c, AV_LOG_DEBUG,
1322 "%s output is not supported with half chroma resolution, switching to full\n",
1323 av_get_pix_fmt_name(dstFormat));
1324 816 flags |= SWS_FULL_CHR_H_INT;
1325 816 sws->flags = flags;
1326 }
1327 }
1328
1329 /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1330 * chroma interpolation */
1331
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 78133 if (flags & SWS_FULL_CHR_H_INT &&
1332
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 18508 isAnyRGB(dstFormat) &&
1333
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 13318 !isPlanarRGB(dstFormat) &&
1334
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 4060 dstFormat != AV_PIX_FMT_RGBA64LE &&
1335
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 4057 dstFormat != AV_PIX_FMT_RGBA64BE &&
1336
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 4053 dstFormat != AV_PIX_FMT_BGRA64LE &&
1337
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 4050 dstFormat != AV_PIX_FMT_BGRA64BE &&
1338
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 3294 dstFormat != AV_PIX_FMT_RGB48LE &&
1339
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 3289 dstFormat != AV_PIX_FMT_RGB48BE &&
1340
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 3285 dstFormat != AV_PIX_FMT_BGR48LE &&
1341
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 3282 dstFormat != AV_PIX_FMT_BGR48BE &&
1342
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 3205 dstFormat != AV_PIX_FMT_RGBA &&
1343
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 3187 dstFormat != AV_PIX_FMT_ARGB &&
1344
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 2643 dstFormat != AV_PIX_FMT_BGRA &&
1345
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 2635 dstFormat != AV_PIX_FMT_ABGR &&
1346
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 873 dstFormat != AV_PIX_FMT_RGB24 &&
1347
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 731 dstFormat != AV_PIX_FMT_BGR24 &&
1348
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 727 dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1349
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 723 dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1350
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 717 dstFormat != AV_PIX_FMT_BGR8 &&
1351
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 712 dstFormat != AV_PIX_FMT_RGB8 &&
1352
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 599 dstFormat != AV_PIX_FMT_X2RGB10LE &&
1353 dstFormat != AV_PIX_FMT_X2BGR10LE
1354 ) {
1355 486 av_log(c, AV_LOG_WARNING,
1356 "full chroma interpolation for destination format '%s' not yet implemented\n",
1357 av_get_pix_fmt_name(dstFormat));
1358 486 flags &= ~SWS_FULL_CHR_H_INT;
1359 486 sws->flags = flags;
1360 }
1361
4/4
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 68879 if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1362 7586 c->chrDstHSubSample = 1;
1363
1364 // drop some chroma lines if the user wants it
1365 68879 c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1366 SWS_SRC_V_CHR_DROP_SHIFT;
1367 68879 c->chrSrcVSubSample += c->vChrDrop;
1368
1369 /* drop every other pixel for chroma calculation unless user
1370 * wants full chroma */
1371
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 68879 if (isAnyRGB(srcFormat) && !(srcW & 1) && !(flags & SWS_FULL_CHR_H_INP) &&
1372
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 25847 srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1373
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 25545 srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1374
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 25246 srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1375
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 24683 srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1376
4/4
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 23978 srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1377
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 22363 srcFormat != AV_PIX_FMT_GBRP10MSBBE && srcFormat != AV_PIX_FMT_GBRP10MSBLE &&
1378
4/4
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 21789 srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1379
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 21128 srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1380
4/4
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 19486 srcFormat != AV_PIX_FMT_GBRP12MSBBE && srcFormat != AV_PIX_FMT_GBRP12MSBLE &&
1381
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 18938 srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1382
4/4
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 18367 srcFormat != AV_PIX_FMT_GBRAP14BE && srcFormat != AV_PIX_FMT_GBRAP14LE &&
1383
4/4
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 17827 srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1384
4/4
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 17082 srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1385
4/4
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 16156 srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1386
4/4
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 15833 srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1387
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 15796 srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1388
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 15795 srcFormat != AV_PIX_FMT_GBRPF16BE && srcFormat != AV_PIX_FMT_GBRPF16LE &&
1389
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 15576 srcFormat != AV_PIX_FMT_GBRAPF16BE && srcFormat != AV_PIX_FMT_GBRAPF16LE &&
1390
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 15531 ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1391
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 14034 (flags & SWS_FAST_BILINEAR)))
1392 1497 c->chrSrcHSubSample = 1;
1393
1394 // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1395 68879 c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1396 68879 c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1397 68879 c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1398 68879 c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1399
1400
1/2
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 68879 if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1401 ✗ goto nomem;
1402
1403 68879 c->srcBpc = desc_src->comp[0].depth;
1404
2/2
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 68879 if (c->srcBpc < 8)
1405 5844 c->srcBpc = 8;
1406 68879 c->dstBpc = desc_dst->comp[0].depth;
1407
2/2
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 68879 if (c->dstBpc < 8)
1408 3776 c->dstBpc = 8;
1409
4/4
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 68879 if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1410 27318 c->srcBpc = 16;
1411
2/2
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 68879 if (c->dstBpc == 16)
1412 5489 dst_stride <<= 1;
1413
1414
6/6
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 68879 if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1415
2/2
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 7255 c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1416
4/4
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 20066 c->chrDstW >= c->chrSrcW &&
1417
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 4955 (srcW & 15) == 0;
1418
8/8
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 7856 if (!c->canMMXEXTBeUsed && dstW >= srcW && c->chrDstW >= c->chrSrcW && (srcW & 15) == 0
1419
1420
1/2
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 372 && (flags & SWS_FAST_BILINEAR)) {
1421 ✗ if (flags & SWS_PRINT_INFO)
1422 ✗ av_log(c, AV_LOG_INFO,
1423 "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1424 }
1425
4/8
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 7856 if (usesHFilter || isNBPS(sws->src_format) || is16BPS(sws->src_format) || isAnyRGB(sws->src_format))
1426 ✗ c->canMMXEXTBeUsed = 0;
1427 } else
1428 61023 c->canMMXEXTBeUsed = 0;
1429
1430 68879 int64_t chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1431 68879 int64_t chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1432
1433 /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1434 * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1435 * correct scaling.
1436 * n-2 is the last chrominance sample available.
1437 * This is not perfect, but no one should notice the difference, the more
1438 * correct variant would be like the vertical one, but that would require
1439 * some special code for the first and last pixel */
1440
2/2
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 68879 if (flags & SWS_FAST_BILINEAR) {
1441
1/2
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 1 if (c->canMMXEXTBeUsed) {
1442 ✗ lumXInc += 20;
1443 ✗ chrXInc += 20;
1444 }
1445 // we don't use the x86 asm scaler if MMX is available
1446
1/4
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 1 else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1447 ✗ lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1448 ✗ chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1449 }
1450 }
1451
3/6
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 68879 if (chrXInc < 10 || chrXInc > INT_MAX ||
1452
2/4
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 68879 chrYInc < 10 || chrYInc > INT_MAX ||
1453
2/4
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 68879 lumXInc < 10 || lumXInc > INT_MAX ||
1454
1/2
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 68879 lumYInc < 10 || lumYInc > INT_MAX)
1455 ✗ return AVERROR_PATCHWELCOME;
1456
1457 68879 c->lumXInc = lumXInc;
1458 68879 c->lumYInc = lumYInc;
1459 68879 c->chrXInc = chrXInc;
1460 68879 c->chrYInc = chrYInc;
1461
1462
1463 // hardcoded for now
1464 68879 c->gamma_value = 2.2;
1465 68879 tmpFmt = AV_PIX_FMT_RGBA64LE;
1466
1467
3/8
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 68879 if (!unscaled && sws->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1468 SwsInternal *c2;
1469 ✗ c->cascaded_context[0] = NULL;
1470
1471 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1472 srcW, srcH, tmpFmt, 64);
1473 ✗ if (ret < 0)
1474 ✗ return ret;
1475
1476 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1477 srcW, srcH, tmpFmt,
1478 flags, NULL, NULL,
1479 ✗ sws->scaler_params);
1480 ✗ if (!c->cascaded_context[0]) {
1481 ✗ return AVERROR(ENOMEM);
1482 }
1483
1484 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1485 dstW, dstH, tmpFmt,
1486 flags, srcFilter, dstFilter,
1487 ✗ sws->scaler_params);
1488
1489 ✗ if (!c->cascaded_context[1])
1490 ✗ return AVERROR(ENOMEM);
1491
1492 ✗ c2 = sws_internal(c->cascaded_context[1]);
1493 ✗ c2->is_internal_gamma = 1;
1494 ✗ c2->gamma = alloc_gamma_tbl( c->gamma_value);
1495 ✗ c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1496 ✗ if (!c2->gamma || !c2->inv_gamma)
1497 ✗ return AVERROR(ENOMEM);
1498
1499 // is_internal_flag is set after creating the context
1500 // to properly create the gamma convert FilterDescriptor
1501 // we have to re-initialize it
1502 ✗ ff_free_filters(c2);
1503 ✗ if ((ret = ff_init_filters(c2)) < 0) {
1504 ✗ sws_freeContext(c->cascaded_context[1]);
1505 ✗ c->cascaded_context[1] = NULL;
1506 ✗ return ret;
1507 }
1508
1509 ✗ c->cascaded_context[2] = NULL;
1510 ✗ if (dstFormat != tmpFmt) {
1511 ✗ ret = av_image_alloc(c->cascaded_tmp[1], c->cascaded_tmpStride[1],
1512 dstW, dstH, tmpFmt, 64);
1513 ✗ if (ret < 0)
1514 ✗ return ret;
1515
1516 ✗ c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1517 dstW, dstH, dstFormat,
1518 flags, NULL, NULL,
1519 ✗ sws->scaler_params);
1520 ✗ if (!c->cascaded_context[2])
1521 ✗ return AVERROR(ENOMEM);
1522 }
1523 ✗ return 0;
1524 }
1525
1526
1/2
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 68879 if (isBayer(srcFormat)) {
1527 ✗ if (!unscaled ||
1528 ✗ (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1529 dstFormat != AV_PIX_FMT_RGB48)) {
1530 ✗ enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1531
1532 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1533 srcW, srcH, tmpFormat, 64);
1534 ✗ if (ret < 0)
1535 ✗ return ret;
1536
1537 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1538 srcW, srcH, tmpFormat,
1539 flags, srcFilter, NULL,
1540 ✗ sws->scaler_params);
1541 ✗ if (!c->cascaded_context[0])
1542 ✗ return AVERROR(ENOMEM);
1543
1544 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1545 dstW, dstH, dstFormat,
1546 flags, NULL, dstFilter,
1547 ✗ sws->scaler_params);
1548 ✗ if (!c->cascaded_context[1])
1549 ✗ return AVERROR(ENOMEM);
1550 ✗ return 0;
1551 }
1552 }
1553
1554
6/6
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 68879 if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1555
2/2
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✓ Branch 1 taken 17 times.
 4369 for (i = 0; i < 256; ++i){
1556 4352 c->uint2float_lut[i] = (float)i * float_mult;
1557 }
1558 }
1559
1560 // float will be converted to uint16_t
1561
6/6
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 68879 if (isFloat(srcFormat) && !isAnyRGB(srcFormat) &&
1562
5/8
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 28 (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1563 dstFormat != AV_PIX_FMT_GRAY8))){
1564 30 c->srcBpc = 16;
1565 }
1566
1567
4/4
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✓ Branch 4 taken 1873 times.
✓ Branch 5 taken 11889 times.
 68879 if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1568 1873 enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1569
1570
3/4
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 1873 if (tmpFormat != AV_PIX_FMT_NONE && sws->alpha_blend != SWS_ALPHA_BLEND_NONE) {
1571 ✗ if (!unscaled ||
1572 ✗ dstFormat != tmpFormat ||
1573 ✗ usesHFilter || usesVFilter ||
1574 ✗ sws->src_range != sws->dst_range
1575 ) {
1576 ✗ c->cascaded_mainindex = 1;
1577 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1578 srcW, srcH, tmpFormat, 64);
1579 ✗ if (ret < 0)
1580 ✗ return ret;
1581
1582 ✗ c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
1583 srcW, srcH, tmpFormat,
1584 ✗ flags, sws->scaler_params);
1585 ✗ if (!c->cascaded_context[0])
1586 ✗ return AVERROR(EINVAL);
1587 ✗ c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
1588 ✗ ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1589 ✗ if (ret < 0)
1590 ✗ return ret;
1591
1592 ✗ c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
1593 dstW, dstH, dstFormat,
1594 ✗ flags, sws->scaler_params);
1595 ✗ if (!c->cascaded_context[1])
1596 ✗ return AVERROR(EINVAL);
1597
1598 ✗ c->cascaded_context[1]->src_range = sws->src_range;
1599 ✗ c->cascaded_context[1]->dst_range = sws->dst_range;
1600 ✗ ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1601 ✗ if (ret < 0)
1602 ✗ return ret;
1603
1604 ✗ return 0;
1605 }
1606 }
1607 }
1608
1609 /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1610
4/6
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 68879 if (unscaled && !usesHFilter && !usesVFilter &&
1611
1/4
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 49920 sws->alpha_blend != SWS_ALPHA_BLEND_NONE &&
1612 ✗ isALPHA(srcFormat) &&
1613 ✗ (sws->src_range == sws->dst_range || isAnyRGB(dstFormat)) &&
1614 ✗ alphaless_fmt(srcFormat) == dstFormat
1615 ) {
1616 ✗ c->convert_unscaled = ff_sws_alphablendaway;
1617
1618 ✗ if (flags & SWS_PRINT_INFO)
1619 ✗ av_log(c, AV_LOG_INFO,
1620 "using alpha blendaway %s -> %s special converter\n",
1621 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1622 ✗ return 0;
1623 }
1624
1625 /* unscaled special cases */
1626
4/6
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 68879 if (unscaled && !usesHFilter && !usesVFilter &&
1627
5/6
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✓ Branch 3 taken 4473 times.
✓ Branch 4 taken 659 times.
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✗ Branch 6 not taken.
 54393 (sws->src_range == sws->dst_range || isAnyRGB(dstFormat) ||
1628
2/4
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✗ Branch 3 not taken.
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✓ Branch 6 taken 4473 times.
 8946 isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1629
1630 45447 ff_get_unscaled_swscale(c);
1631
1632
2/2
✓ Branch 0 taken 9939 times.
✓ Branch 1 taken 35508 times.
 45447 if (c->convert_unscaled) {
1633
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9939 times.
 9939 if (flags & SWS_PRINT_INFO)
1634 ✗ av_log(c, AV_LOG_INFO,
1635 "using unscaled %s -> %s special converter\n",
1636 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1637 9939 return 0;
1638 }
1639 }
1640
1641 /* precalculate horizontal scaler filter coefficients */
1642 {
1643 #if HAVE_MMXEXT_INLINE
1644 // can't downscale !!!
1645
3/4
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✗ Branch 2 not taken.
✓ Branch 3 taken 3705 times.
 58940 if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
1646 ✗ c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
1647 NULL, NULL, 8);
1648 ✗ c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
1649 NULL, NULL, NULL, 4);
1650
1651 ✗ c->lumMmxextFilterCode = ff_sws_jit_alloc(c->lumMmxextFilterCodeSize);
1652 ✗ c->chrMmxextFilterCode = ff_sws_jit_alloc(c->chrMmxextFilterCodeSize);
1653 ✗ if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode) {
1654 ✗ av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1655 ✗ return AVERROR(ENOMEM);
1656 }
1657
1658 ✗ if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1659 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1660 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1661 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1662 ✗ goto nomem;
1663
1664 ✗ ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1665 c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1666 ✗ ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1667 c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1668
1669 ✗ if ((ret = ff_sws_jit_protect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize)) < 0 ||
1670 ✗ (ret = ff_sws_jit_protect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize)) < 0) {
1671 ✗ av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1672 ✗ goto fail;
1673 }
1674 } else
1675 #endif /* HAVE_MMXEXT_INLINE */
1676 {
1677
2/2
✓ Branch 0 taken 32923 times.
✓ Branch 1 taken 26017 times.
 58940 const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1678 PPC_ALTIVEC(cpu_flags) ? 8 :
1679 have_neon(cpu_flags) ? 4 :
1680 have_lsx(cpu_flags) ? 8 :
1681 have_lasx(cpu_flags) ? 8 : 1;
1682
1683
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 58940 times.
 117880 if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1684 &c->hLumFilterSize, c->lumXInc,
1685 srcW, dstW, filterAlign, 1 << 14,
1686 lum_scaler, flags,
1687 cpu_flags, srcFilter->lumH, dstFilter->lumH,
1688 58940 sws->scaler_params,
1689 get_local_pos(c, 0, 0, 0),
1690 get_local_pos(c, 0, 0, 0))) < 0)
1691 ✗ goto fail;
1692
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 58940 times.
 58940 if (ff_shuffle_filter_coefficients(c, c->hLumFilterPos, c->hLumFilterSize, c->hLumFilter, dstW) < 0)
1693 ✗ goto nomem;
1694
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 58940 times.
 117880 if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1695 &c->hChrFilterSize, c->chrXInc,
1696 c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1697 chr_scaler, flags,
1698 cpu_flags, srcFilter->chrH, dstFilter->chrH,
1699 58940 sws->scaler_params,
1700 get_local_pos(c, c->chrSrcHSubSample, sws->src_h_chr_pos, 0),
1701 get_local_pos(c, c->chrDstHSubSample, sws->dst_h_chr_pos, 0))) < 0)
1702 ✗ goto fail;
1703
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 58940 times.
 58940 if (ff_shuffle_filter_coefficients(c, c->hChrFilterPos, c->hChrFilterSize, c->hChrFilter, c->chrDstW) < 0)
1704 ✗ goto nomem;
1705 }
1706 } // initialize horizontal stuff
1707
1708 /* precalculate vertical scaler filter coefficients */
1709 {
1710
2/2
✓ Branch 0 taken 32923 times.
✓ Branch 1 taken 26017 times.
 58940 const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1711 PPC_ALTIVEC(cpu_flags) ? 8 :
1712 have_neon(cpu_flags) ? 2 : 1;
1713
1714 58940 ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1715 c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1716 lum_scaler, flags,
1717 cpu_flags, srcFilter->lumV, dstFilter->lumV,
1718 58940 sws->scaler_params,
1719 get_local_pos(c, 0, 0, 1),
1720 get_local_pos(c, 0, 0, 1));
1721 58940 int usecascade = (ret == RETCODE_USE_CASCADE);
1722
1/4
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 58940 if (ret < 0 && !usecascade)
1723 ✗ goto fail;
1724
1/2
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✓ Branch 3 taken 58940 times.
 117880 if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1725 c->chrYInc, c->chrSrcH, c->chrDstH,
1726 filterAlign, (1 << 12),
1727 chr_scaler, flags,
1728 cpu_flags, srcFilter->chrV, dstFilter->chrV,
1729 58940 sws->scaler_params,
1730 get_local_pos(c, c->chrSrcVSubSample, sws->src_v_chr_pos, 1),
1731 get_local_pos(c, c->chrDstVSubSample, sws->dst_v_chr_pos, 1))) < 0)
1732
1733 ✗ goto fail;
1734
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 58940 if (usecascade) {
1735 ✗ ret = RETCODE_USE_CASCADE;
1736 ✗ goto fail;
1737 }
1738
1739 #if HAVE_ALTIVEC
1740 ret = ff_sws_init_altivec_bufs(c);
1741 if (ret < 0)
1742 goto fail;
1743 #endif
1744 }
1745
1746
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 294700 for (i = 0; i < 4; i++)
1747
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 235760 if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], sws->dst_w + 3))
1748 ✗ goto nomem;
1749
1750
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 58940 c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(sws->src_format) && isALPHA(sws->dst_format)) ? 1 : 0;
1751
1752 // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1753 58940 c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1754 58940 c->uv_offx2 = dst_stride + 16;
1755
1756
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 58940 av_assert0(c->chrDstH <= dstH);
1757
1758
2/2
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 58940 if (flags & SWS_PRINT_INFO) {
1759 2 const char *scaler = NULL, *cpucaps;
1760
1761
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 9 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1762
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 9 if (info_scaler == scale_algorithms[i].flag) {
1763 2 scaler = scale_algorithms[i].description;
1764 2 break;
1765 }
1766 }
1767
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 2 if (!scaler)
1768 ✗ scaler = "ehh flags invalid?!";
1769
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 4 av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1770 scaler,
1771 av_get_pix_fmt_name(srcFormat),
1772
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 2 dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1773
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 2 dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1774
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 2 dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1775 "dithered " : "",
1776 av_get_pix_fmt_name(dstFormat));
1777
1778
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 2 if (INLINE_MMXEXT(cpu_flags))
1779 2 cpucaps = "MMXEXT";
1780 ✗ else if (INLINE_MMX(cpu_flags))
1781 ✗ cpucaps = "MMX";
1782 else if (PPC_ALTIVEC(cpu_flags))
1783 cpucaps = "AltiVec";
1784 else
1785 ✗ cpucaps = "C";
1786
1787 2 av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1788
1789 2 av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1790 2 av_log(c, AV_LOG_DEBUG,
1791 "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1792 sws->src_w, sws->src_h, sws->dst_w, sws->dst_h, c->lumXInc, c->lumYInc);
1793 2 av_log(c, AV_LOG_DEBUG,
1794 "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1795 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1796 c->chrXInc, c->chrYInc);
1797 }
1798
1799 58940 ff_sws_init_scale(c);
1800
1801 58940 return ff_init_filters(c);
1802 ✗ nomem:
1803 ✗ ret = AVERROR(ENOMEM);
1804 ✗ fail: // FIXME replace things by appropriate error codes
1805 ✗ if (ret == RETCODE_USE_CASCADE) {
1806 ✗ int tmpW = sqrt(srcW * (int64_t)dstW);
1807 ✗ int tmpH = sqrt(srcH * (int64_t)dstH);
1808 ✗ enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1809
1810 ✗ if (isALPHA(srcFormat))
1811 ✗ tmpFormat = AV_PIX_FMT_YUVA420P;
1812
1813 ✗ if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1814 ✗ return AVERROR(EINVAL);
1815
1816 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1817 tmpW, tmpH, tmpFormat, 64);
1818 ✗ if (ret < 0)
1819 ✗ return ret;
1820
1821 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1822 tmpW, tmpH, tmpFormat,
1823 flags, srcFilter, NULL,
1824 ✗ sws->scaler_params);
1825 ✗ if (!c->cascaded_context[0])
1826 ✗ return AVERROR(ENOMEM);
1827
1828 ✗ c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
1829 dstW, dstH, dstFormat,
1830 flags, NULL, dstFilter,
1831 ✗ sws->scaler_params);
1832 ✗ if (!c->cascaded_context[1])
1833 ✗ return AVERROR(ENOMEM);
1834 ✗ return 0;
1835 }
1836 ✗ return ret;
1837 }
1838
1839 ✗ static int context_init_threaded(SwsContext *sws,
1840 SwsFilter *src_filter, SwsFilter *dst_filter)
1841 {
1842 ✗ SwsInternal *c = sws_internal(sws);
1843 int ret;
1844
1845 ✗ ret = avpriv_slicethread_create2(&c->slicethread, (void*) sws,
1846 ff_sws_slice_worker, NULL, sws->threads);
1847 ✗ if (ret == AVERROR(ENOSYS)) {
1848 ✗ sws->threads = 1;
1849 ✗ return 0;
1850 ✗ } else if (ret < 0)
1851 ✗ return ret;
1852
1853 ✗ sws->threads = ret;
1854
1855 ✗ c->slice_ctx = av_calloc(sws->threads, sizeof(*c->slice_ctx));
1856 ✗ if (!c->slice_ctx)
1857 ✗ return AVERROR(ENOMEM);
1858
1859 ✗ for (int i = 0; i < sws->threads; i++) {
1860 SwsContext *slice;
1861 ✗ slice = c->slice_ctx[i] = sws_alloc_context();
1862 ✗ if (!slice)
1863 ✗ return AVERROR(ENOMEM);
1864 ✗ sws_internal(slice)->parent = sws;
1865 ✗ c->nb_slice_ctx++;
1866
1867 ✗ ret = av_opt_copy(slice, sws);
1868 ✗ if (ret < 0)
1869 ✗ return ret;
1870 ✗ slice->threads = 1;
1871
1872 ✗ ret = ff_sws_init_single_context(slice, src_filter, dst_filter);
1873 ✗ if (ret < 0)
1874 ✗ return ret;
1875
1876 ✗ if (slice->dither == SWS_DITHER_ED) {
1877 ✗ av_log(c, AV_LOG_VERBOSE,
1878 "Error-diffusion dither is in use, scaling will be single-threaded.");
1879 ✗ break;
1880 }
1881 }
1882
1883 ✗ return 0;
1884 }
1885
1886 45688 av_cold int sws_init_context(SwsContext *sws, SwsFilter *srcFilter,
1887 SwsFilter *dstFilter)
1888 {
1889 45688 SwsInternal *c = sws_internal(sws);
1890 static AVOnce rgb2rgb_once = AV_ONCE_INIT;
1891 enum AVPixelFormat src_format, dst_format;
1892 int ret;
1893
1894 45688 c->is_legacy_init = 1;
1895 45688 c->frame_src = av_frame_alloc();
1896 45688 c->frame_dst = av_frame_alloc();
1897
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 45688 if (!c->frame_src || !c->frame_dst)
1898 ✗ return AVERROR(ENOMEM);
1899
1900
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 45688 if (ff_thread_once(&rgb2rgb_once, ff_sws_rgb2rgb_init) != 0)
1901 ✗ return AVERROR_UNKNOWN;
1902
1903 45688 src_format = sws->src_format;
1904 45688 dst_format = sws->dst_format;
1905 45688 sws->src_range |= handle_jpeg(&sws->src_format);
1906 45688 sws->dst_range |= handle_jpeg(&sws->dst_format);
1907
1908
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 45688 if (src_format != sws->src_format || dst_format != sws->dst_format)
1909 563 av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
1910
1911
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 45688 if (sws->threads != 1) {
1912 ✗ ret = context_init_threaded(sws, srcFilter, dstFilter);
1913 ✗ if (ret < 0 || sws->threads > 1)
1914 ✗ return ret;
1915 // threading disabled in this build, init as single-threaded
1916 }
1917
1918 45688 return ff_sws_init_single_context(sws, srcFilter, dstFilter);
1919 }
1920
1921 5740 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
1922 int dstW, int dstH, enum AVPixelFormat dstFormat,
1923 int flags, SwsFilter *srcFilter,
1924 SwsFilter *dstFilter, const double *param)
1925 {
1926 SwsContext *sws;
1927
1928 5740 sws = alloc_set_opts(srcW, srcH, srcFormat,
1929 dstW, dstH, dstFormat,
1930 flags, param);
1931
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 5740 if (!sws)
1932 ✗ return NULL;
1933
1934
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 5740 if (sws_init_context(sws, srcFilter, dstFilter) < 0) {
1935 ✗ sws_freeContext(sws);
1936 ✗ return NULL;
1937 }
1938
1939 5740 return sws;
1940 }
1941
1942 ✗ static int isnan_vec(SwsVector *a)
1943 {
1944 int i;
1945 ✗ for (i=0; i<a->length; i++)
1946 ✗ if (isnan(a->coeff[i]))
1947 ✗ return 1;
1948 ✗ return 0;
1949 }
1950
1951 ✗ static void makenan_vec(SwsVector *a)
1952 {
1953 int i;
1954 ✗ for (i=0; i<a->length; i++)
1955 ✗ a->coeff[i] = NAN;
1956 ✗ }
1957
1958 ✗ SwsVector *sws_allocVec(int length)
1959 {
1960 SwsVector *vec;
1961
1962 ✗ if(length <= 0 || length > INT_MAX/ sizeof(double))
1963 ✗ return NULL;
1964
1965 ✗ vec = av_malloc(sizeof(SwsVector));
1966 ✗ if (!vec)
1967 ✗ return NULL;
1968 ✗ vec->length = length;
1969 ✗ vec->coeff = av_malloc(sizeof(double) * length);
1970 ✗ if (!vec->coeff)
1971 ✗ av_freep(&vec);
1972 ✗ return vec;
1973 }
1974
1975 ✗ SwsVector *sws_getGaussianVec(double variance, double quality)
1976 {
1977 ✗ const int length = (int)(variance * quality + 0.5) | 1;
1978 int i;
1979 ✗ double middle = (length - 1) * 0.5;
1980 SwsVector *vec;
1981
1982 ✗ if(variance < 0 || quality < 0)
1983 ✗ return NULL;
1984
1985 ✗ vec = sws_allocVec(length);
1986
1987 ✗ if (!vec)
1988 ✗ return NULL;
1989
1990 ✗ for (i = 0; i < length; i++) {
1991 ✗ double dist = i - middle;
1992 ✗ vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
1993 ✗ sqrt(2 * variance * M_PI);
1994 }
1995
1996 ✗ sws_normalizeVec(vec, 1.0);
1997
1998 ✗ return vec;
1999 }
2000
2001 /**
2002 * Allocate and return a vector with length coefficients, all
2003 * with the same value c.
2004 */
2005 static
2006 ✗ SwsVector *sws_getConstVec(double c, int length)
2007 {
2008 int i;
2009 ✗ SwsVector *vec = sws_allocVec(length);
2010
2011 ✗ if (!vec)
2012 ✗ return NULL;
2013
2014 ✗ for (i = 0; i < length; i++)
2015 ✗ vec->coeff[i] = c;
2016
2017 ✗ return vec;
2018 }
2019
2020 /**
2021 * Allocate and return a vector with just one coefficient, with
2022 * value 1.0.
2023 */
2024 static
2025 ✗ SwsVector *sws_getIdentityVec(void)
2026 {
2027 ✗ return sws_getConstVec(1.0, 1);
2028 }
2029
2030 ✗ static double sws_dcVec(SwsVector *a)
2031 {
2032 int i;
2033 ✗ double sum = 0;
2034
2035 ✗ for (i = 0; i < a->length; i++)
2036 ✗ sum += a->coeff[i];
2037
2038 ✗ return sum;
2039 }
2040
2041 ✗ void sws_scaleVec(SwsVector *a, double scalar)
2042 {
2043 int i;
2044
2045 ✗ for (i = 0; i < a->length; i++)
2046 ✗ a->coeff[i] *= scalar;
2047 ✗ }
2048
2049 ✗ void sws_normalizeVec(SwsVector *a, double height)
2050 {
2051 ✗ sws_scaleVec(a, height / sws_dcVec(a));
2052 ✗ }
2053
2054 ✗ static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2055 {
2056 ✗ int length = FFMAX(a->length, b->length);
2057 int i;
2058 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2059
2060 ✗ if (!vec)
2061 ✗ return NULL;
2062
2063 ✗ for (i = 0; i < a->length; i++)
2064 ✗ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2065 ✗ for (i = 0; i < b->length; i++)
2066 ✗ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2067
2068 ✗ return vec;
2069 }
2070
2071 /* shift left / or right if "shift" is negative */
2072 ✗ static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2073 {
2074 ✗ int length = a->length + FFABS(shift) * 2;
2075 int i;
2076 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2077
2078 ✗ if (!vec)
2079 ✗ return NULL;
2080
2081 ✗ for (i = 0; i < a->length; i++) {
2082 ✗ vec->coeff[i + (length - 1) / 2 -
2083 ✗ (a->length - 1) / 2 - shift] = a->coeff[i];
2084 }
2085
2086 ✗ return vec;
2087 }
2088
2089 static
2090 ✗ void sws_shiftVec(SwsVector *a, int shift)
2091 {
2092 ✗ SwsVector *shifted = sws_getShiftedVec(a, shift);
2093 ✗ if (!shifted) {
2094 ✗ makenan_vec(a);
2095 ✗ return;
2096 }
2097 ✗ av_free(a->coeff);
2098 ✗ a->coeff = shifted->coeff;
2099 ✗ a->length = shifted->length;
2100 ✗ av_free(shifted);
2101 }
2102
2103 static
2104 ✗ void sws_addVec(SwsVector *a, SwsVector *b)
2105 {
2106 ✗ SwsVector *sum = sws_sumVec(a, b);
2107 ✗ if (!sum) {
2108 ✗ makenan_vec(a);
2109 ✗ return;
2110 }
2111 ✗ av_free(a->coeff);
2112 ✗ a->coeff = sum->coeff;
2113 ✗ a->length = sum->length;
2114 ✗ av_free(sum);
2115 }
2116
2117 /**
2118 * Print with av_log() a textual representation of the vector a
2119 * if log_level <= av_log_level.
2120 */
2121 static
2122 ✗ void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2123 {
2124 int i;
2125 ✗ double max = 0;
2126 ✗ double min = 0;
2127 double range;
2128
2129 ✗ for (i = 0; i < a->length; i++)
2130 ✗ if (a->coeff[i] > max)
2131 ✗ max = a->coeff[i];
2132
2133 ✗ for (i = 0; i < a->length; i++)
2134 ✗ if (a->coeff[i] < min)
2135 ✗ min = a->coeff[i];
2136
2137 ✗ range = max - min;
2138
2139 ✗ for (i = 0; i < a->length; i++) {
2140 ✗ int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2141 ✗ av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2142 ✗ for (; x > 0; x--)
2143 ✗ av_log(log_ctx, log_level, " ");
2144 ✗ av_log(log_ctx, log_level, "|\n");
2145 }
2146 ✗ }
2147
2148 ✗ void sws_freeVec(SwsVector *a)
2149 {
2150 ✗ if (!a)
2151 ✗ return;
2152 ✗ av_freep(&a->coeff);
2153 ✗ a->length = 0;
2154 ✗ av_free(a);
2155 }
2156
2157 ✗ void sws_freeFilter(SwsFilter *filter)
2158 {
2159 ✗ if (!filter)
2160 ✗ return;
2161
2162 ✗ sws_freeVec(filter->lumH);
2163 ✗ sws_freeVec(filter->lumV);
2164 ✗ sws_freeVec(filter->chrH);
2165 ✗ sws_freeVec(filter->chrV);
2166 ✗ av_free(filter);
2167 }
2168
2169 ✗ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2170 float lumaSharpen, float chromaSharpen,
2171 float chromaHShift, float chromaVShift,
2172 int verbose)
2173 {
2174 ✗ SwsFilter *filter = av_malloc(sizeof(SwsFilter));
2175 ✗ if (!filter)
2176 ✗ return NULL;
2177
2178 ✗ if (lumaGBlur != 0.0) {
2179 ✗ filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
2180 ✗ filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
2181 } else {
2182 ✗ filter->lumH = sws_getIdentityVec();
2183 ✗ filter->lumV = sws_getIdentityVec();
2184 }
2185
2186 ✗ if (chromaGBlur != 0.0) {
2187 ✗ filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
2188 ✗ filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2189 } else {
2190 ✗ filter->chrH = sws_getIdentityVec();
2191 ✗ filter->chrV = sws_getIdentityVec();
2192 }
2193
2194 ✗ if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2195 ✗ goto fail;
2196
2197 ✗ if (chromaSharpen != 0.0) {
2198 ✗ SwsVector *id = sws_getIdentityVec();
2199 ✗ if (!id)
2200 ✗ goto fail;
2201 ✗ sws_scaleVec(filter->chrH, -chromaSharpen);
2202 ✗ sws_scaleVec(filter->chrV, -chromaSharpen);
2203 ✗ sws_addVec(filter->chrH, id);
2204 ✗ sws_addVec(filter->chrV, id);
2205 ✗ sws_freeVec(id);
2206 }
2207
2208 ✗ if (lumaSharpen != 0.0) {
2209 ✗ SwsVector *id = sws_getIdentityVec();
2210 ✗ if (!id)
2211 ✗ goto fail;
2212 ✗ sws_scaleVec(filter->lumH, -lumaSharpen);
2213 ✗ sws_scaleVec(filter->lumV, -lumaSharpen);
2214 ✗ sws_addVec(filter->lumH, id);
2215 ✗ sws_addVec(filter->lumV, id);
2216 ✗ sws_freeVec(id);
2217 }
2218
2219 ✗ if (chromaHShift != 0.0)
2220 ✗ sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2221
2222 ✗ if (chromaVShift != 0.0)
2223 ✗ sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2224
2225 ✗ sws_normalizeVec(filter->chrH, 1.0);
2226 ✗ sws_normalizeVec(filter->chrV, 1.0);
2227 ✗ sws_normalizeVec(filter->lumH, 1.0);
2228 ✗ sws_normalizeVec(filter->lumV, 1.0);
2229
2230 ✗ if (isnan_vec(filter->chrH) ||
2231 ✗ isnan_vec(filter->chrV) ||
2232 ✗ isnan_vec(filter->lumH) ||
2233 ✗ isnan_vec(filter->lumV))
2234 ✗ goto fail;
2235
2236 ✗ if (verbose)
2237 ✗ sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2238 ✗ if (verbose)
2239 ✗ sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2240
2241 ✗ return filter;
2242
2243 ✗ fail:
2244 ✗ sws_freeVec(filter->lumH);
2245 ✗ sws_freeVec(filter->lumV);
2246 ✗ sws_freeVec(filter->chrH);
2247 ✗ sws_freeVec(filter->chrV);
2248 ✗ av_freep(&filter);
2249 ✗ return NULL;
2250 }
2251
2252 356533 void sws_freeContext(SwsContext *sws)
2253 {
2254 356533 SwsInternal *c = sws_internal(sws);
2255 int i;
2256
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 356533 if (!c)
2257 267400 return;
2258
2259 89133 av_refstruct_unref(&c->hw_priv);
2260
2261
2/2
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 267399 for (i = 0; i < FF_ARRAY_ELEMS(c->graph); i++)
2262 178266 ff_sws_graph_free(&c->graph[i]);
2263 89133 ff_frame_pool_uninit(&c->frame_pool);
2264
2265
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 112324 for (i = 0; i < c->nb_slice_ctx; i++)
2266 23191 sws_freeContext(c->slice_ctx[i]);
2267 89133 av_freep(&c->slice_ctx);
2268
2269 89133 avpriv_slicethread_free(&c->slicethread);
2270
2271
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 445665 for (i = 0; i < 4; i++)
2272 356532 av_freep(&c->dither_error[i]);
2273
2274 89133 av_frame_free(&c->frame_src);
2275 89133 av_frame_free(&c->frame_dst);
2276
2277 89133 av_freep(&c->src_ranges.ranges);
2278
2279 89133 av_freep(&c->vLumFilter);
2280 89133 av_freep(&c->vChrFilter);
2281 89133 av_freep(&c->hLumFilter);
2282 89133 av_freep(&c->hChrFilter);
2283 #if HAVE_ALTIVEC
2284 ff_sws_free_altivec_bufs(c);
2285 #endif
2286
2287 89133 av_freep(&c->vLumFilterPos);
2288 89133 av_freep(&c->vChrFilterPos);
2289 89133 av_freep(&c->hLumFilterPos);
2290 89133 av_freep(&c->hChrFilterPos);
2291
2292 #if HAVE_MMX_INLINE
2293 89133 ff_sws_jit_free(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2294 89133 ff_sws_jit_free(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2295 89133 c->lumMmxextFilterCode = NULL;
2296 89133 c->chrMmxextFilterCode = NULL;
2297 #endif /* HAVE_MMX_INLINE */
2298
2299 89133 av_freep(&c->yuvTable);
2300 89133 av_freep(&c->formatConvBuffer);
2301
2302 89133 sws_freeContext(c->cascaded_context[0]);
2303 89133 sws_freeContext(c->cascaded_context[1]);
2304 89133 sws_freeContext(c->cascaded_context[2]);
2305 89133 memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2306 89133 av_freep(&c->cascaded_tmp[0][0]);
2307 89133 av_freep(&c->cascaded_tmp[1][0]);
2308
2309 89133 av_freep(&c->gamma);
2310 89133 av_freep(&c->inv_gamma);
2311 #if CONFIG_SMALL
2312 av_freep(&c->xyz2rgb.gamma.in);
2313 #endif
2314
2315 89133 av_freep(&c->rgb0_scratch);
2316 89133 av_freep(&c->xyz_scratch);
2317
2318 89133 ff_free_filters(c);
2319
2320 89133 av_free(c);
2321 }
2322
2323 59768 void sws_free_context(SwsContext **pctx)
2324 {
2325 59768 SwsContext *ctx = *pctx;
2326
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 59768 if (!ctx)
2327 ✗ return;
2328
2329 59768 sws_freeContext(ctx);
2330 59768 *pctx = NULL;
2331 }
2332
2333 ✗ SwsContext *sws_getCachedContext(SwsContext *prev, int srcW,
2334 int srcH, enum AVPixelFormat srcFormat,
2335 int dstW, int dstH,
2336 enum AVPixelFormat dstFormat, int flags,
2337 SwsFilter *srcFilter,
2338 SwsFilter *dstFilter,
2339 const double *param)
2340 {
2341 SwsContext *sws;
2342 static const double default_param[2] = { SWS_PARAM_DEFAULT,
2343 SWS_PARAM_DEFAULT };
2344
2345 ✗ if (!param)
2346 ✗ param = default_param;
2347
2348 ✗ if (prev && (prev->src_w == srcW &&
2349 ✗ prev->src_h == srcH &&
2350 ✗ prev->src_format == srcFormat &&
2351 ✗ prev->dst_w == dstW &&
2352 ✗ prev->dst_h == dstH &&
2353 ✗ prev->dst_format == dstFormat &&
2354 ✗ prev->flags == flags &&
2355 ✗ !memcmp(prev->scaler_params, param,
2356 sizeof(prev->scaler_params)))) {
2357 ✗ return prev;
2358 }
2359
2360 ✗ if (!(sws = sws_alloc_context())) {
2361 ✗ sws_free_context(&prev);
2362 ✗ return NULL;
2363 }
2364
2365 ✗ if (prev) {
2366 ✗ av_opt_copy(sws, prev);
2367 ✗ sws_free_context(&prev);
2368 }
2369
2370 ✗ sws->src_w = srcW;
2371 ✗ sws->src_h = srcH;
2372 ✗ sws->src_format = srcFormat;
2373 ✗ sws->dst_w = dstW;
2374 ✗ sws->dst_h = dstH;
2375 ✗ sws->dst_format = dstFormat;
2376 ✗ sws->flags = flags;
2377 ✗ for (int i = 0; i < SWS_NUM_SCALER_PARAMS; i++)
2378 ✗ sws->scaler_params[i] = param[i];
2379
2380 ✗ if (sws_init_context(sws, srcFilter, dstFilter) < 0)
2381 ✗ sws_free_context(&sws);
2382
2383 ✗ return sws;
2384 }
2385
2386 ✗ int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
2387 {
2388 Range *tmp;
2389 unsigned int idx;
2390
2391 /* find the first existing range after the new one */
2392 ✗ for (idx = 0; idx < rl->nb_ranges; idx++)
2393 ✗ if (rl->ranges[idx].start > start)
2394 ✗ break;
2395
2396 /* check for overlap */
2397 ✗ if (idx > 0) {
2398 ✗ Range *prev = &rl->ranges[idx - 1];
2399 ✗ if (prev->start + prev->len > start)
2400 ✗ return AVERROR(EINVAL);
2401 }
2402 ✗ if (idx < rl->nb_ranges) {
2403 ✗ Range *next = &rl->ranges[idx];
2404 ✗ if (start + len > next->start)
2405 ✗ return AVERROR(EINVAL);
2406 }
2407
2408 ✗ tmp = av_fast_realloc(rl->ranges, &rl->ranges_allocated,
2409 ✗ (rl->nb_ranges + 1) * sizeof(*rl->ranges));
2410 ✗ if (!tmp)
2411 ✗ return AVERROR(ENOMEM);
2412 ✗ rl->ranges = tmp;
2413
2414 ✗ memmove(rl->ranges + idx + 1, rl->ranges + idx,
2415 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2416 ✗ rl->ranges[idx].start = start;
2417 ✗ rl->ranges[idx].len = len;
2418 ✗ rl->nb_ranges++;
2419
2420 /* merge ranges */
2421 ✗ if (idx > 0) {
2422 ✗ Range *prev = &rl->ranges[idx - 1];
2423 ✗ Range *cur = &rl->ranges[idx];
2424 ✗ if (prev->start + prev->len == cur->start) {
2425 ✗ prev->len += cur->len;
2426 ✗ memmove(rl->ranges + idx - 1, rl->ranges + idx,
2427 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2428 ✗ rl->nb_ranges--;
2429 ✗ idx--;
2430 }
2431 }
2432 ✗ if (idx < rl->nb_ranges - 1) {
2433 ✗ Range *cur = &rl->ranges[idx];
2434 ✗ Range *next = &rl->ranges[idx + 1];
2435 ✗ if (cur->start + cur->len == next->start) {
2436 ✗ cur->len += next->len;
2437 ✗ memmove(rl->ranges + idx, rl->ranges + idx + 1,
2438 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx - 1));
2439 ✗ rl->nb_ranges--;
2440 }
2441 }
2442
2443 ✗ return 0;
2444 }
2445
2446 8 int ff_sws_thread_exec(void *priv,
2447 int (*func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
2448 int nb_threads, int nb_jobs)
2449 {
2450 AVSliceThread *slicethread;
2451 8 int ret = avpriv_slicethread_create2(&slicethread, priv, func, NULL, nb_threads);
2452
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 8 if (ret == AVERROR(ENOSYS)) {
2453 /* Fallback for build configurations without threading */
2454 ✗ for (int i = 0; i < nb_jobs; i++) {
2455 ✗ int ret = func(priv, i, 0, nb_jobs, 1);
2456 ✗ if (ret)
2457 ✗ return ret;
2458 }
2459 ✗ return 0;
2460
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 8 } else if (ret < 0) {
2461 ✗ return ret;
2462 }
2463
2464 8 ret = avpriv_slicethread_execute2(slicethread, nb_jobs, 0);
2465 8 avpriv_slicethread_free(&slicethread);
2466 8 return ret;
2467 }
2468