FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/utils.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 736 1331 55.3%
Functions: 20 42 47.6%
Branches: 629 1193 52.7%
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 #define _SVID_SOURCE // needed for MAP_ANONYMOUS
26 #define _DARWIN_C_SOURCE // needed for MAP_ANON
27 #include <inttypes.h>
28 #include <math.h>
29 #include <stdio.h>
30 #include <string.h>
31 #if HAVE_MMAP
32 #include <sys/mman.h>
33 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
34 #define MAP_ANONYMOUS MAP_ANON
35 #endif
36 #endif
37 #if HAVE_VIRTUALALLOC
38 #include <windows.h>
39 #endif
40
41 #include "libavutil/attributes.h"
42 #include "libavutil/avassert.h"
43 #include "libavutil/cpu.h"
44 #include "libavutil/csp.h"
45 #include "libavutil/emms.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/intreadwrite.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/mathematics.h"
50 #include "libavutil/mem.h"
51 #include "libavutil/opt.h"
52 #include "libavutil/pixdesc.h"
53 #include "libavutil/slicethread.h"
54 #include "libavutil/thread.h"
55 #include "libavutil/aarch64/cpu.h"
56 #include "libavutil/ppc/cpu.h"
57 #include "libavutil/x86/asm.h"
58 #include "libavutil/x86/cpu.h"
59 #include "libavutil/loongarch/cpu.h"
60
61 #include "rgb2rgb.h"
62 #include "swscale.h"
63 #include "swscale_internal.h"
64 #include "graph.h"
65
66 /**
67 * Allocate and return an SwsContext without performing initialization.
68 */
69 3145 static SwsContext *alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
70 int dstW, int dstH, enum AVPixelFormat dstFormat,
71 int flags, const double *param)
72 {
73 3145 SwsContext *sws = sws_alloc_context();
74
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 3145 if (!sws)
75 ✗ return NULL;
76
77 3145 sws->flags = flags;
78 3145 sws->src_w = srcW;
79 3145 sws->src_h = srcH;
80 3145 sws->dst_w = dstW;
81 3145 sws->dst_h = dstH;
82 3145 sws->src_format = srcFormat;
83 3145 sws->dst_format = dstFormat;
84
85
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 3145 if (param) {
86 2 sws->scaler_params[0] = param[0];
87 2 sws->scaler_params[1] = param[1];
88 }
89
90 3145 return sws;
91 }
92
93 52776 int ff_shuffle_filter_coefficients(SwsInternal *c, int *filterPos,
94 int filterSize, int16_t *filter,
95 int dstW)
96 {
97 #if ARCH_X86_64
98 int i, j, k;
99 52776 int cpu_flags = av_get_cpu_flags();
100
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 52776 if (!filter)
101 ✗ return 0;
102
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 52776 if (EXTERNAL_AVX2_FAST(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) {
103
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 390 if ((c->srcBpc == 8) && (c->dstBpc <= 14)) {
104 180 int16_t *filterCopy = NULL;
105
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 180 if (filterSize > 4) {
106
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 30 if (!FF_ALLOC_TYPED_ARRAY(filterCopy, dstW * filterSize))
107 ✗ return AVERROR(ENOMEM);
108 30 memcpy(filterCopy, filter, dstW * filterSize * sizeof(int16_t));
109 }
110 // Do not swap filterPos for pixels which won't be processed by
111 // the main loop.
112
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 13536 for (i = 0; i + 16 <= dstW; i += 16) {
113 13356 FFSWAP(int, filterPos[i + 2], filterPos[i + 4]);
114 13356 FFSWAP(int, filterPos[i + 3], filterPos[i + 5]);
115 13356 FFSWAP(int, filterPos[i + 10], filterPos[i + 12]);
116 13356 FFSWAP(int, filterPos[i + 11], filterPos[i + 13]);
117 }
118
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 180 if (filterSize > 4) {
119 // 16 pixels are processed at a time.
120
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 360 for (i = 0; i + 16 <= dstW; i += 16) {
121 // 4 filter coeffs are processed at a time.
122
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 2112 for (k = 0; k + 4 <= filterSize; k += 4) {
123
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 30294 for (j = 0; j < 16; ++j) {
124 28512 int from = (i + j) * filterSize + k;
125 28512 int to = i * filterSize + j * 4 + k * 16;
126 28512 memcpy(&filter[to], &filterCopy[from], 4 * sizeof(int16_t));
127 }
128 }
129 }
130 // 4 pixels are processed at a time in the tail.
131
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 50 for (; i < dstW; i += 4) {
132 // 4 filter coeffs are processed at a time.
133 20 int rem = dstW - i >= 4 ? 4 : dstW - i;
134
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 128 for (k = 0; k + 4 <= filterSize; k += 4) {
135
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 540 for (j = 0; j < rem; ++j) {
136 432 int from = (i + j) * filterSize + k;
137 432 int to = i * filterSize + j * 4 + k * 4;
138 432 memcpy(&filter[to], &filterCopy[from], 4 * sizeof(int16_t));
139 }
140 }
141 }
142 }
143 180 av_free(filterCopy);
144 }
145 }
146 #endif
147 52776 return 0;
148 }
149
150 ✗ static double getSplineCoeff(double a, double b, double c, double d,
151 double dist)
152 {
153 ✗ if (dist <= 1.0)
154 ✗ return ((d * dist + c) * dist + b) * dist + a;
155 else
156 ✗ return getSplineCoeff(0.0,
157 ✗ b + 2.0 * c + 3.0 * d,
158 ✗ c + 3.0 * d,
159 ✗ -b - 3.0 * c - 6.0 * d,
160 dist - 1.0);
161 }
162
163 207360 static av_cold int get_local_pos(SwsInternal *s, int chr_subsample, int pos, int dir)
164 {
165
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 207360 if (pos == -1 || pos <= -513) {
166 79217 pos = (128 << chr_subsample) - 128;
167 }
168 207360 pos += 128; // relative to ideal left edge
169 207360 return pos >> chr_subsample;
170 }
171
172 typedef struct {
173 int flag; ///< flag associated to the algorithm
174 const char *description; ///< human-readable description
175 int size_factor; ///< size factor used when initing the filters
176 } ScaleAlgorithm;
177
178 static const ScaleAlgorithm scale_algorithms[] = {
179 { SWS_AREA, "area averaging", 1 /* downscale only, for upscale it is bilinear */ },
180 { SWS_BICUBIC, "bicubic", 4 },
181 { SWS_BICUBLIN, "luma bicubic / chroma bilinear", -1 },
182 { SWS_BILINEAR, "bilinear", 2 },
183 { SWS_FAST_BILINEAR, "fast bilinear", -1 },
184 { SWS_GAUSS, "Gaussian", 8 /* infinite ;) */ },
185 { SWS_LANCZOS, "Lanczos", -1 /* custom */ },
186 { SWS_POINT, "nearest neighbor / point", -1 },
187 { SWS_SINC, "sinc", 20 /* infinite ;) */ },
188 { SWS_SPLINE, "bicubic spline", 20 /* infinite :)*/ },
189 { SWS_X, "experimental", 8 },
190 };
191
192 103680 static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
193 int *outFilterSize, int xInc, int srcW,
194 int dstW, int filterAlign, int one,
195 int flags, int cpu_flags,
196 SwsVector *srcFilter, SwsVector *dstFilter,
197 double param[2], int srcPos, int dstPos)
198 {
199 int i;
200 int filterSize;
201 int filter2Size;
202 int minFilterSize;
203 103680 int64_t *filter = NULL;
204 103680 int64_t *filter2 = NULL;
205 103680 const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
206 103680 int ret = -1;
207
208 103680 emms_c(); // FIXME should not be required but IS (even for non-MMX versions)
209
210 // NOTE: the +3 is for the MMX(+1) / SSE(+3) scaler which reads over the end
211
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 103680 if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
212 ✗ goto nomem;
213
214
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 184908 if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
215 int i;
216 81228 filterSize = 1;
217
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 81228 if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
218 ✗ goto nomem;
219
220
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 29622651 for (i = 0; i < dstW; i++) {
221 29541423 filter[i * filterSize] = fone;
222 29541423 (*filterPos)[i] = i;
223 }
224
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 22452 } else if (flags & SWS_POINT) { // lame looking point sampling mode
225 int i;
226 int64_t xDstInSrc;
227 301 filterSize = 1;
228
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 301 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
229 ✗ goto nomem;
230
231 301 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
232
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 87392 for (i = 0; i < dstW; i++) {
233 87091 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
234
235 87091 (*filterPos)[i] = xx;
236 87091 filter[i] = fone;
237 87091 xDstInSrc += xInc;
238 }
239
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 22151 } else if ((xInc <= (1 << 16) && (flags & SWS_AREA)) ||
240
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 22151 (flags & SWS_FAST_BILINEAR)) { // bilinear upscale
241 int i;
242 int64_t xDstInSrc;
243 88 filterSize = 2;
244
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 88 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
245 ✗ goto nomem;
246
247 88 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
248
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 157324 for (i = 0; i < dstW; i++) {
249 157236 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
250 int j;
251
252 157236 (*filterPos)[i] = xx;
253 // bilinear upscale / linear interpolate / area averaging
254
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 471708 for (j = 0; j < filterSize; j++) {
255 314472 int64_t coeff = fone - FFABS((int64_t)xx * (1 << 16) - xDstInSrc) * (fone >> 16);
256
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 314472 if (coeff < 0)
257 ✗ coeff = 0;
258 314472 filter[i * filterSize + j] = coeff;
259 314472 xx++;
260 }
261 157236 xDstInSrc += xInc;
262 }
263 } else {
264 int64_t xDstInSrc;
265 22063 int sizeFactor = -1;
266
267
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 44706 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
268
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 44706 if (flags & scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
269 22063 sizeFactor = scale_algorithms[i].size_factor;
270 22063 break;
271 }
272 }
273
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 22063 if (flags & SWS_LANCZOS)
274 ✗ sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
275
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 22063 av_assert0(sizeFactor > 0);
276
277
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 22063 if (xInc <= 1 << 16)
278 13082 filterSize = 1 + sizeFactor; // upscale
279 else
280 8981 filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
281
282
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 22063 filterSize = FFMIN(filterSize, srcW - 2);
283 22063 filterSize = FFMAX(filterSize, 1);
284
285
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 22063 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
286 ✗ goto nomem;
287 22063 xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
288
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 7874975 for (i = 0; i < dstW; i++) {
289 7852912 int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
290 int j;
291 7852912 (*filterPos)[i] = xx;
292
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 53263468 for (j = 0; j < filterSize; j++) {
293 45410556 int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
294 double floatd;
295 int64_t coeff;
296
297
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 45410556 if (xInc > 1 << 16)
298 12995881 d = d * dstW / srcW;
299 45410556 floatd = d * (1.0 / (1 << 30));
300
301
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 45410556 if (flags & SWS_BICUBIC) {
302
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 44721129 int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
303
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 44721129 int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
304
305
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 44721129 if (d >= 1LL << 31) {
306 7934759 coeff = 0.0;
307 } else {
308 36786370 int64_t dd = (d * d) >> 30;
309 36786370 int64_t ddd = (dd * d) >> 30;
310
311
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 36786370 if (d < 1LL << 30)
312 18405940 coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
313 18405940 (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
314 18405940 (6 * (1 << 24) - 2 * B) * (1 << 30);
315 else
316 18380430 coeff = (-B - 6 * C) * ddd +
317 18380430 (6 * B + 30 * C) * dd +
318 18380430 (-12 * B - 48 * C) * d +
319 18380430 (8 * B + 24 * C) * (1 << 30);
320 }
321 44721129 coeff /= (1LL<<54)/fone;
322
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 689427 } else if (flags & SWS_X) {
323 ✗ double A = param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
324 double c;
325
326 ✗ if (floatd < 1.0)
327 ✗ c = cos(floatd * M_PI);
328 else
329 ✗ c = -1.0;
330 ✗ if (c < 0.0)
331 ✗ c = -pow(-c, A);
332 else
333 ✗ c = pow(c, A);
334 ✗ coeff = (c * 0.5 + 0.5) * fone;
335
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 689427 } else if (flags & SWS_AREA) {
336 288927 int64_t d2 = d - (1 << 29);
337
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 288927 if (d2 * xInc < -(1LL << (29 + 16)))
338 218924 coeff = 1.0 * (1LL << (30 + 16));
339
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 70003 else if (d2 * xInc < (1LL << (29 + 16)))
340 60908 coeff = -d2 * xInc + (1LL << (29 + 16));
341 else
342 9095 coeff = 0.0;
343 288927 coeff *= fone >> (30 + 16);
344
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 400500 } else if (flags & SWS_GAUSS) {
345 ✗ double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
346 ✗ coeff = exp2(-p * floatd * floatd) * fone;
347
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 400500 } else if (flags & SWS_SINC) {
348 ✗ coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
349
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 400500 } else if (flags & SWS_LANCZOS) {
350 ✗ double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
351 ✗ coeff = (d ? sin(floatd * M_PI) * sin(floatd * M_PI / p) /
352 ✗ (floatd * floatd * M_PI * M_PI / p) : 1.0) * fone;
353 ✗ if (floatd > p)
354 ✗ coeff = 0;
355
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 400500 } else if (flags & SWS_BILINEAR) {
356 400500 coeff = (1 << 30) - d;
357
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 400500 if (coeff < 0)
358 48380 coeff = 0;
359 400500 coeff *= fone >> 30;
360 ✗ } else if (flags & SWS_SPLINE) {
361 ✗ double p = -2.196152422706632;
362 ✗ coeff = getSplineCoeff(1.0, 0.0, p, -p - 1.0, floatd) * fone;
363 } else {
364 ✗ av_assert0(0);
365 }
366
367 45410556 filter[i * filterSize + j] = coeff;
368 45410556 xx++;
369 }
370 7852912 xDstInSrc += 2LL * xInc;
371 }
372 }
373
374 /* apply src & dst Filter to filter -> filter2
375 * av_free(filter);
376 */
377
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 103680 av_assert0(filterSize > 0);
378 103680 filter2Size = filterSize;
379
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 103680 if (srcFilter)
380 ✗ filter2Size += srcFilter->length - 1;
381
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 103680 if (dstFilter)
382 ✗ filter2Size += dstFilter->length - 1;
383
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 103680 av_assert0(filter2Size > 0);
384
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 103680 if (!FF_ALLOCZ_TYPED_ARRAY(filter2, dstW * filter2Size))
385 ✗ goto nomem;
386
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 37742342 for (i = 0; i < dstW; i++) {
387 int j, k;
388
389
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 37638662 if (srcFilter) {
390 ✗ for (k = 0; k < srcFilter->length; k++) {
391 ✗ for (j = 0; j < filterSize; j++)
392 ✗ filter2[i * filter2Size + k + j] +=
393 ✗ srcFilter->coeff[k] * filter[i * filterSize + j];
394 }
395 } else {
396
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 112992204 for (j = 0; j < filterSize; j++)
397 75353542 filter2[i * filter2Size + j] = filter[i * filterSize + j];
398 }
399 // FIXME dstFilter
400
401 37638662 (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
402 }
403 103680 av_freep(&filter);
404
405 /* try to reduce the filter-size (step1 find size and shift left) */
406 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
407 103680 minFilterSize = 0;
408
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 37742342 for (i = dstW - 1; i >= 0; i--) {
409 37638662 int min = filter2Size;
410 int j;
411 37638662 int64_t cutOff = 0.0;
412
413 /* get rid of near zero elements on the left by shifting left */
414
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 41051117 for (j = 0; j < filter2Size; j++) {
415 int k;
416 41051117 cutOff += FFABS(filter2[i * filter2Size]);
417
418
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 41051117 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
419 37635841 break;
420
421 /* preserve monotonicity because the core can't handle the
422 * filter otherwise */
423
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 3415276 if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
424 2821 break;
425
426 // move filter coefficients left
427
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 17920596 for (k = 1; k < filter2Size; k++)
428 14508141 filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
429 3412455 filter2[i * filter2Size + k - 1] = 0;
430 3412455 (*filterPos)[i]++;
431 }
432
433 37638662 cutOff = 0;
434 /* count near zeros on the right */
435
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 45696256 for (j = filter2Size - 1; j > 0; j--) {
436 16066820 cutOff += FFABS(filter2[i * filter2Size + j]);
437
438
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 16066820 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
439 8009226 break;
440 8057594 min--;
441 }
442
443
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 37638662 if (min > minFilterSize)
444 104372 minFilterSize = min;
445 }
446
447 if (PPC_ALTIVEC(cpu_flags)) {
448 // we can handle the special case 4, so we don't want to go the full 8
449 if (minFilterSize < 5)
450 filterAlign = 4;
451
452 /* We really don't want to waste our time doing useless computation, so
453 * fall back on the scalar C code for very small filters.
454 * Vectorizing is worth it only if you have a decent-sized vector. */
455 if (minFilterSize < 3)
456 filterAlign = 1;
457 }
458
459
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 103680 if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX || have_neon(cpu_flags)) {
460 // special case for unscaled vertical filtering
461
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 4904 if (minFilterSize == 1 && filterAlign == 2)
462 1285 filterAlign = 1;
463 }
464
465 if (have_lasx(cpu_flags) || have_lsx(cpu_flags)) {
466 int reNum = minFilterSize & (0x07);
467
468 if (minFilterSize < 5)
469 filterAlign = 4;
470 if (reNum < 3)
471 filterAlign = 1;
472 }
473
474
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 103680 av_assert0(minFilterSize > 0);
475 103680 filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
476
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 103680 av_assert0(filterSize > 0);
477 103680 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
478
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 103680 if (!filter)
479 ✗ goto nomem;
480
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 103680 if (filterSize >= MAX_FILTER_SIZE * 16 /
481
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 103680 ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
482 ✗ ret = RETCODE_USE_CASCADE;
483 ✗ goto fail;
484 }
485 103680 *outFilterSize = filterSize;
486
487
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 103680 if (flags & SWS_PRINT_INFO)
488 ✗ av_log(NULL, AV_LOG_VERBOSE,
489 "SwScaler: reducing / aligning filtersize %d -> %d\n",
490 filter2Size, filterSize);
491 /* try to reduce the filter-size (step2 reduce it) */
492
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 37742342 for (i = 0; i < dstW; i++) {
493 int j;
494
495
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 115170177 for (j = 0; j < filterSize; j++) {
496
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 77531515 if (j >= filter2Size)
497 10091970 filter[i * filterSize + j] = 0;
498 else
499 67439545 filter[i * filterSize + j] = filter2[i * filter2Size + j];
500
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 77531515 if ((flags & SWS_BITEXACT) && j >= minFilterSize)
501 10056960 filter[i * filterSize + j] = 0;
502 }
503 }
504
505 // FIXME try to align filterPos if possible
506
507 // fix borders
508
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 37742342 for (i = 0; i < dstW; i++) {
509 int j;
510
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 37638662 if ((*filterPos)[i] < 0) {
511 // move filter coefficients left to compensate for filterPos
512
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 271213 for (j = 1; j < filterSize; j++) {
513 224260 int left = FFMAX(j + (*filterPos)[i], 0);
514 224260 filter[i * filterSize + left] += filter[i * filterSize + j];
515 224260 filter[i * filterSize + j] = 0;
516 }
517 46953 (*filterPos)[i]= 0;
518 }
519
520
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 37638662 if ((*filterPos)[i] + filterSize > srcW) {
521 69671 int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
522 69671 int64_t acc = 0;
523
524
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 434168 for (j = filterSize - 1; j >= 0; j--) {
525
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 364497 if ((*filterPos)[i] + j >= srcW) {
526 114071 acc += filter[i * filterSize + j];
527 114071 filter[i * filterSize + j] = 0;
528 }
529 }
530
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 434168 for (j = filterSize - 1; j >= 0; j--) {
531
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 364497 if (j < shift) {
532 114071 filter[i * filterSize + j] = 0;
533 } else {
534 250426 filter[i * filterSize + j] = filter[i * filterSize + j - shift];
535 }
536 }
537
538 69671 (*filterPos)[i]-= shift;
539 69671 filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
540 }
541
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 37638662 av_assert0((*filterPos)[i] >= 0);
542
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 37638662 av_assert0((*filterPos)[i] < srcW);
543
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 37638662 if ((*filterPos)[i] + filterSize > srcW) {
544 ✗ for (j = 0; j < filterSize; j++) {
545 ✗ av_assert0((*filterPos)[i] + j < srcW || !filter[i * filterSize + j]);
546 }
547 }
548 }
549
550 // Note the +1 is for the MMX scaler which reads over the end
551 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
552
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 103680 if (!FF_ALLOCZ_TYPED_ARRAY(*outFilter, *outFilterSize * (dstW + 3)))
553 ✗ goto nomem;
554
555 /* normalize & store in outFilter */
556
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 37742342 for (i = 0; i < dstW; i++) {
557 int j;
558 37638662 int64_t error = 0;
559 37638662 int64_t sum = 0;
560
561
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 115170177 for (j = 0; j < filterSize; j++) {
562 77531515 sum += filter[i * filterSize + j];
563 }
564 37638662 sum = (sum + one / 2) / one;
565
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 37638662 if (!sum) {
566 ✗ av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
567 ✗ sum = 1;
568 }
569
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 115170177 for (j = 0; j < *outFilterSize; j++) {
570 77531515 int64_t v = filter[i * filterSize + j] + error;
571
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 77531515 int intV = ROUNDED_DIV(v, sum);
572 77531515 (*outFilter)[i * (*outFilterSize) + j] = intV;
573 77531515 error = v - intV * sum;
574 }
575 }
576
577 103680 (*filterPos)[dstW + 0] =
578 103680 (*filterPos)[dstW + 1] =
579 103680 (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
580 * read over the end */
581
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 327096 for (i = 0; i < *outFilterSize; i++) {
582 223416 int k = (dstW - 1) * (*outFilterSize) + i;
583 223416 (*outFilter)[k + 1 * (*outFilterSize)] =
584 223416 (*outFilter)[k + 2 * (*outFilterSize)] =
585 223416 (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
586 }
587
588 103680 ret = 0;
589 103680 goto done;
590 ✗ nomem:
591 ✗ ret = AVERROR(ENOMEM);
592 ✗ fail:
593 ✗ if(ret < 0)
594 ✗ av_log(NULL, ret == RETCODE_USE_CASCADE ? AV_LOG_DEBUG : AV_LOG_ERROR, "sws: initFilter failed\n");
595 ✗ done:
596 103680 av_free(filter);
597 103680 av_free(filter2);
598 103680 return ret;
599 }
600
601 18515 static void fill_rgb2yuv_table(SwsInternal *c, const int table[4], int dstRange)
602 {
603 int64_t W, V, Z, Cy, Cu, Cv;
604 18515 int64_t vr = table[0];
605 18515 int64_t ub = table[1];
606 18515 int64_t ug = -table[2];
607 18515 int64_t vg = -table[3];
608 18515 int64_t ONE = 65536;
609 18515 int64_t cy = ONE;
610 18515 uint8_t *p = (uint8_t*)c->input_rgb2yuv_table;
611 int i;
612 static const int8_t map[] = {
613 BY_IDX, GY_IDX, -1 , BY_IDX, BY_IDX, GY_IDX, -1 , BY_IDX,
614 RY_IDX, -1 , GY_IDX, RY_IDX, RY_IDX, -1 , GY_IDX, RY_IDX,
615 RY_IDX, GY_IDX, -1 , RY_IDX, RY_IDX, GY_IDX, -1 , RY_IDX,
616 BY_IDX, -1 , GY_IDX, BY_IDX, BY_IDX, -1 , GY_IDX, BY_IDX,
617 BU_IDX, GU_IDX, -1 , BU_IDX, BU_IDX, GU_IDX, -1 , BU_IDX,
618 RU_IDX, -1 , GU_IDX, RU_IDX, RU_IDX, -1 , GU_IDX, RU_IDX,
619 RU_IDX, GU_IDX, -1 , RU_IDX, RU_IDX, GU_IDX, -1 , RU_IDX,
620 BU_IDX, -1 , GU_IDX, BU_IDX, BU_IDX, -1 , GU_IDX, BU_IDX,
621 BV_IDX, GV_IDX, -1 , BV_IDX, BV_IDX, GV_IDX, -1 , BV_IDX,
622 RV_IDX, -1 , GV_IDX, RV_IDX, RV_IDX, -1 , GV_IDX, RV_IDX,
623 RV_IDX, GV_IDX, -1 , RV_IDX, RV_IDX, GV_IDX, -1 , RV_IDX,
624 BV_IDX, -1 , GV_IDX, BV_IDX, BV_IDX, -1 , GV_IDX, BV_IDX,
625 RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX,
626 BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX,
627 GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 ,
628 -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX,
629 RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX,
630 BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX,
631 GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 ,
632 -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX,
633 RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX,
634 BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX,
635 GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 ,
636 -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, //23
637 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //24
638 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //25
639 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //26
640 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //27
641 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //28
642 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //29
643 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //30
644 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //31
645 BY_IDX, GY_IDX, RY_IDX, -1 , -1 , -1 , -1 , -1 , //32
646 BU_IDX, GU_IDX, RU_IDX, -1 , -1 , -1 , -1 , -1 , //33
647 BV_IDX, GV_IDX, RV_IDX, -1 , -1 , -1 , -1 , -1 , //34
648 };
649
650 18515 dstRange = 0; //FIXME range = 1 is handled elsewhere
651
652
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 18515 if (!dstRange) {
653 18515 cy = cy * 255 / 219;
654 } else {
655 ✗ vr = vr * 224 / 255;
656 ✗ ub = ub * 224 / 255;
657 ✗ ug = ug * 224 / 255;
658 ✗ vg = vg * 224 / 255;
659 }
660
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 18515 W = ROUNDED_DIV(ONE*ONE*ug, ub);
661
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 18515 V = ROUNDED_DIV(ONE*ONE*vg, vr);
662 18515 Z = ONE*ONE-W-V;
663
664
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 18515 Cy = ROUNDED_DIV(cy*Z, ONE);
665
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 18515 Cu = ROUNDED_DIV(ub*Z, ONE);
666
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 18515 Cv = ROUNDED_DIV(vr*Z, ONE);
667
668
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 18515 c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
669 18515 c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
670
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 18515 c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
671
672
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 18515 c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
673 18515 c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
674
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 18515 c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
675
676
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 18515 c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
677 18515 c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
678
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 18515 c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
679
680
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 18515 if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
681 18515 c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
682 18515 c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
683 18515 c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
684 18515 c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
685 18515 c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
686 18515 c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
687 18515 c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
688 18515 c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
689 18515 c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
690 }
691
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 5202715 for(i=0; i<FF_ARRAY_ELEMS(map); i++)
692
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 5184200 AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
693 18515 }
694
695 150 static int fill_xyztables(SwsInternal *c)
696 {
697 int i;
698 150 double xyzgamma = XYZ_GAMMA;
699 150 double rgbgamma = 1.0 / RGB_GAMMA;
700 150 double xyzgammainv = 1.0 / XYZ_GAMMA;
701 150 double rgbgammainv = RGB_GAMMA;
702 static const int16_t xyz2rgb_matrix[3][4] = {
703 {13270, -6295, -2041},
704 {-3969, 7682, 170},
705 { 228, -835, 4329} };
706 static const int16_t rgb2xyz_matrix[3][4] = {
707 {1689, 1464, 739},
708 { 871, 2929, 296},
709 { 79, 488, 3891} };
710 #if !CONFIG_SMALL
711 static uint16_t xyzgamma_tab[4096], rgbgammainv_tab[4096];
712 static uint16_t rgbgamma_tab[65536], xyzgammainv_tab[65536];
713 #endif
714
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 150 if (c->xyzgamma)
715 100 return 0;
716
717 50 memcpy(c->xyz2rgb_matrix, xyz2rgb_matrix, sizeof(c->xyz2rgb_matrix));
718 50 memcpy(c->rgb2xyz_matrix, rgb2xyz_matrix, sizeof(c->rgb2xyz_matrix));
719
720 #if CONFIG_SMALL
721 c->xyzgamma = av_malloc(sizeof(uint16_t) * 2 * (4096 + 65536));
722 if (!c->xyzgamma)
723 return AVERROR(ENOMEM);
724 c->rgbgammainv = c->xyzgamma + 4096;
725 c->rgbgamma = c->rgbgammainv + 4096;
726 c->xyzgammainv = c->rgbgamma + 65536;
727 #else
728 50 c->xyzgamma = xyzgamma_tab;
729 50 c->rgbgamma = rgbgamma_tab;
730 50 c->xyzgammainv = xyzgammainv_tab;
731 50 c->rgbgammainv = rgbgammainv_tab;
732
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 50 if (xyzgamma_tab[4095])
733 13 return 0;
734 #endif
735
736 /* set input gamma vectors */
737
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 151589 for (i = 0; i < 4096; i++) {
738 151552 c->xyzgamma[i] = lrint(pow(i / 4095.0, xyzgamma) * 65535.0);
739 151552 c->rgbgammainv[i] = lrint(pow(i / 4095.0, rgbgammainv) * 65535.0);
740 }
741
742 /* set output gamma vectors */
743
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 2424869 for (i = 0; i < 65536; i++) {
744 2424832 c->rgbgamma[i] = lrint(pow(i / 65535.0, rgbgamma) * 4095.0);
745 2424832 c->xyzgammainv[i] = lrint(pow(i / 65535.0, xyzgammainv) * 4095.0);
746 }
747 37 return 0;
748 }
749
750 18932 static int handle_jpeg(enum AVPixelFormat *format)
751 {
752
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 18932 switch (*format) {
753 95 case AV_PIX_FMT_YUVJ420P:
754 95 *format = AV_PIX_FMT_YUV420P;
755 95 return 1;
756 16 case AV_PIX_FMT_YUVJ411P:
757 16 *format = AV_PIX_FMT_YUV411P;
758 16 return 1;
759 53 case AV_PIX_FMT_YUVJ422P:
760 53 *format = AV_PIX_FMT_YUV422P;
761 53 return 1;
762 62 case AV_PIX_FMT_YUVJ444P:
763 62 *format = AV_PIX_FMT_YUV444P;
764 62 return 1;
765 44 case AV_PIX_FMT_YUVJ440P:
766 44 *format = AV_PIX_FMT_YUV440P;
767 44 return 1;
768 413 case AV_PIX_FMT_GRAY8:
769 case AV_PIX_FMT_YA8:
770 case AV_PIX_FMT_GRAY9LE:
771 case AV_PIX_FMT_GRAY9BE:
772 case AV_PIX_FMT_GRAY10LE:
773 case AV_PIX_FMT_GRAY10BE:
774 case AV_PIX_FMT_GRAY12LE:
775 case AV_PIX_FMT_GRAY12BE:
776 case AV_PIX_FMT_GRAY14LE:
777 case AV_PIX_FMT_GRAY14BE:
778 case AV_PIX_FMT_GRAY16LE:
779 case AV_PIX_FMT_GRAY16BE:
780 case AV_PIX_FMT_YA16BE:
781 case AV_PIX_FMT_YA16LE:
782 413 return 1;
783 18249 default:
784 18249 return 0;
785 }
786 }
787
788 181700 static int handle_0alpha(enum AVPixelFormat *format)
789 {
790
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 181700 switch (*format) {
791 19 case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
792 51 case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
793 19 case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
794 19 case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
795 181592 default: return 0;
796 }
797 }
798
799 181700 static int handle_xyz(enum AVPixelFormat *format)
800 {
801
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 181700 switch (*format) {
802 14 case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
803 38 case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
804 181648 default: return 0;
805 }
806 }
807
808 90850 static int handle_formats(SwsContext *sws)
809 {
810 90850 SwsInternal *c = sws_internal(sws);
811 90850 c->src0Alpha |= handle_0alpha(&sws->src_format);
812 90850 c->dst0Alpha |= handle_0alpha(&sws->dst_format);
813 90850 c->srcXYZ |= handle_xyz(&sws->src_format);
814 90850 c->dstXYZ |= handle_xyz(&sws->dst_format);
815
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 90850 if (c->srcXYZ || c->dstXYZ)
816 150 return fill_xyztables(c);
817 else
818 90700 return 0;
819 }
820
821 131160 static int range_override_needed(enum AVPixelFormat format)
822 {
823
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 131160 return !isYUV(format) && !isGray(format);
824 }
825
826 59454 int sws_setColorspaceDetails(SwsContext *sws, const int inv_table[4],
827 int srcRange, const int table[4], int dstRange,
828 int brightness, int contrast, int saturation)
829 {
830 59454 SwsInternal *c = sws_internal(sws);
831 const AVPixFmtDescriptor *desc_dst;
832 const AVPixFmtDescriptor *desc_src;
833 59454 int ret, need_reinit = 0;
834
835
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 59454 if (c->nb_slice_ctx) {
836 ✗ int parent_ret = 0;
837 ✗ for (int i = 0; i < c->nb_slice_ctx; i++) {
838 ✗ int ret = sws_setColorspaceDetails(c->slice_ctx[i], inv_table,
839 srcRange, table, dstRange,
840 brightness, contrast, saturation);
841 ✗ if (ret < 0)
842 ✗ parent_ret = ret;
843 }
844
845 ✗ return parent_ret;
846 }
847
848 59454 ret = handle_formats(sws);
849
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 59454 if (ret < 0)
850 ✗ return ret;
851 59454 desc_dst = av_pix_fmt_desc_get(sws->dst_format);
852 59454 desc_src = av_pix_fmt_desc_get(sws->src_format);
853
854
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 59454 if(range_override_needed(sws->dst_format))
855 23483 dstRange = 0;
856
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 59454 if(range_override_needed(sws->src_format))
857 18192 srcRange = 0;
858
859
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 59454 if (sws->src_range != srcRange ||
860
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 58367 sws->dst_range != dstRange ||
861
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 56816 c->brightness != brightness ||
862
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 56816 c->contrast != contrast ||
863
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 28058 c->saturation != saturation ||
864
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 28058 memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
865
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 27916 memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
866 )
867 31538 need_reinit = 1;
868
869 59454 memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
870 59454 memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
871
872
873
874 59454 c->brightness = brightness;
875 59454 c->contrast = contrast;
876 59454 c->saturation = saturation;
877 59454 sws->src_range = srcRange;
878 59454 sws->dst_range = dstRange;
879
880
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 59454 if (need_reinit)
881 31538 ff_sws_init_range_convert(c);
882
883 59454 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
884 59454 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
885
886
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 59454 if (c->cascaded_context[c->cascaded_mainindex])
887 ✗ return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
888
889
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 59454 if (!need_reinit)
890 27916 return 0;
891
892
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 31538 if ((isYUV(sws->dst_format) || isGray(sws->dst_format)) && (isYUV(sws->src_format) || isGray(sws->src_format))) {
893
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 13023 if (!c->cascaded_context[0] &&
894
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 13023 memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
895
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 1 sws->src_w && sws->src_h && sws->dst_w && sws->dst_h) {
896 enum AVPixelFormat tmp_format;
897 int tmp_width, tmp_height;
898 1 int srcW = sws->src_w;
899 1 int srcH = sws->src_h;
900 1 int dstW = sws->dst_w;
901 1 int dstH = sws->dst_h;
902 int ret;
903 1 av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
904
905
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 1 if (isNBPS(sws->dst_format) || is16BPS(sws->dst_format)) {
906 ✗ if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
907 ✗ tmp_format = AV_PIX_FMT_BGRA64;
908 } else {
909 ✗ tmp_format = AV_PIX_FMT_BGR48;
910 }
911 } else {
912
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 1 if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
913 ✗ tmp_format = AV_PIX_FMT_BGRA;
914 } else {
915 1 tmp_format = AV_PIX_FMT_BGR24;
916 }
917 }
918
919
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 1 if (srcW*srcH > dstW*dstH) {
920 ✗ tmp_width = dstW;
921 ✗ tmp_height = dstH;
922 } else {
923 1 tmp_width = srcW;
924 1 tmp_height = srcH;
925 }
926
927 1 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
928 tmp_width, tmp_height, tmp_format, 64);
929
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 1 if (ret < 0)
930 ✗ return ret;
931
932 2 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, sws->src_format,
933 tmp_width, tmp_height, tmp_format,
934 1 sws->flags, sws->scaler_params);
935
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 1 if (!c->cascaded_context[0])
936 ✗ return -1;
937
938 1 c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
939 1 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
940
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 1 if (ret < 0)
941 ✗ return ret;
942 //we set both src and dst depending on that the RGB side will be ignored
943 1 sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
944 srcRange, table, dstRange,
945 brightness, contrast, saturation);
946
947 2 c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
948 1 dstW, dstH, sws->dst_format,
949 1 sws->flags, sws->scaler_params);
950
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 1 if (!c->cascaded_context[1])
951 ✗ return -1;
952 1 c->cascaded_context[1]->src_range = srcRange;
953 1 c->cascaded_context[1]->dst_range = dstRange;
954 1 ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
955
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 1 if (ret < 0)
956 ✗ return ret;
957 1 sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
958 srcRange, table, dstRange,
959 0, 1 << 16, 1 << 16);
960 1 return 0;
961 }
962 //We do not support this combination currently, we need to cascade more contexts to compensate
963
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 13022 if (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
964 ✗ return -1; //AVERROR_PATCHWELCOME;
965 13022 return 0;
966 }
967
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 18515 if (!isYUV(sws->dst_format) && !isGray(sws->dst_format)) {
969 13262 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
970 contrast, saturation);
971 // FIXME factorize
972
973 #if ARCH_PPC
974 ff_yuv2rgb_init_tables_ppc(c, inv_table, brightness,
975 contrast, saturation);
976 #endif
977 }
978
979 18515 fill_rgb2yuv_table(c, table, dstRange);
980
981 18515 return 0;
982 }
983
984 6126 int sws_getColorspaceDetails(SwsContext *sws, int **inv_table,
985 int *srcRange, int **table, int *dstRange,
986 int *brightness, int *contrast, int *saturation)
987 {
988 6126 SwsInternal *c = sws_internal(sws);
989
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 6126 if (!c)
990 ✗ return -1;
991
992
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 6126 if (c->nb_slice_ctx) {
993 ✗ return sws_getColorspaceDetails(c->slice_ctx[0], inv_table, srcRange,
994 table, dstRange, brightness, contrast,
995 saturation);
996 }
997
998 6126 *inv_table = c->srcColorspaceTable;
999 6126 *table = c->dstColorspaceTable;
1000
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 6126 *srcRange = range_override_needed(sws->src_format) ? 1 : sws->src_range;
1001
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 6126 *dstRange = range_override_needed(sws->dst_format) ? 1 : sws->dst_range;
1002 6126 *brightness = c->brightness;
1003 6126 *contrast = c->contrast;
1004 6126 *saturation = c->saturation;
1005
1006 6126 return 0;
1007 }
1008
1009 42185 SwsContext *sws_alloc_context(void)
1010 {
1011 42185 SwsInternal *c = (SwsInternal *) av_mallocz(sizeof(SwsInternal));
1012
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 42185 if (!c)
1013 ✗ return NULL;
1014
1015 42185 c->opts.av_class = &ff_sws_context_class;
1016 42185 av_opt_set_defaults(c);
1017 42185 atomic_init(&c->stride_unaligned_warned, 0);
1018 42185 atomic_init(&c->data_unaligned_warned, 0);
1019
1020 42185 return &c->opts;
1021 }
1022
1023 ✗ static uint16_t * alloc_gamma_tbl(double e)
1024 {
1025 ✗ int i = 0;
1026 uint16_t * tbl;
1027 ✗ tbl = (uint16_t*)av_malloc(sizeof(uint16_t) * 1 << 16);
1028 ✗ if (!tbl)
1029 ✗ return NULL;
1030
1031 ✗ for (i = 0; i < 65536; ++i) {
1032 ✗ tbl[i] = pow(i / 65535.0, e) * 65535.0;
1033 }
1034 ✗ return tbl;
1035 }
1036
1037 1485 static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1038 {
1039
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 1485 switch(fmt) {
1040 12 case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1041 12 case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1042 2 case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1043 220 case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1044 20 case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1045
1046 364 case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1047 3 case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1048 ✗ case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1049
1050 51 case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1051
1052 1 case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1053 ✗ case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1054
1055 1 case AV_PIX_FMT_GBRAP12LE: return AV_PIX_FMT_GBRP12;
1056 ✗ case AV_PIX_FMT_GBRAP12BE: return AV_PIX_FMT_GBRP12;
1057
1058 ✗ case AV_PIX_FMT_GBRAP14LE: return AV_PIX_FMT_GBRP14;
1059 ✗ case AV_PIX_FMT_GBRAP14BE: return AV_PIX_FMT_GBRP14;
1060
1061 1 case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1062 10 case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1063
1064 1 case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1065 10 case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1066 1 case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1067 ✗ case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1068
1069 20 case AV_PIX_FMT_YA16BE: return AV_PIX_FMT_GRAY16;
1070 ✗ case AV_PIX_FMT_YA16LE: return AV_PIX_FMT_GRAY16;
1071
1072 ✗ case AV_PIX_FMT_YUVA420P9BE: return AV_PIX_FMT_YUV420P9;
1073 ✗ case AV_PIX_FMT_YUVA422P9BE: return AV_PIX_FMT_YUV422P9;
1074 ✗ case AV_PIX_FMT_YUVA444P9BE: return AV_PIX_FMT_YUV444P9;
1075 ✗ case AV_PIX_FMT_YUVA420P9LE: return AV_PIX_FMT_YUV420P9;
1076 ✗ case AV_PIX_FMT_YUVA422P9LE: return AV_PIX_FMT_YUV422P9;
1077 ✗ case AV_PIX_FMT_YUVA444P9LE: return AV_PIX_FMT_YUV444P9;
1078 ✗ case AV_PIX_FMT_YUVA420P10BE: return AV_PIX_FMT_YUV420P10;
1079 ✗ case AV_PIX_FMT_YUVA422P10BE: return AV_PIX_FMT_YUV422P10;
1080 ✗ case AV_PIX_FMT_YUVA444P10BE: return AV_PIX_FMT_YUV444P10;
1081 ✗ case AV_PIX_FMT_YUVA420P10LE: return AV_PIX_FMT_YUV420P10;
1082 ✗ case AV_PIX_FMT_YUVA422P10LE: return AV_PIX_FMT_YUV422P10;
1083 ✗ case AV_PIX_FMT_YUVA444P10LE: return AV_PIX_FMT_YUV444P10;
1084 ✗ case AV_PIX_FMT_YUVA420P16BE: return AV_PIX_FMT_YUV420P16;
1085 ✗ case AV_PIX_FMT_YUVA422P16BE: return AV_PIX_FMT_YUV422P16;
1086 ✗ case AV_PIX_FMT_YUVA444P16BE: return AV_PIX_FMT_YUV444P16;
1087 ✗ case AV_PIX_FMT_YUVA420P16LE: return AV_PIX_FMT_YUV420P16;
1088 10 case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1089 4 case AV_PIX_FMT_YUVA444P16LE: return AV_PIX_FMT_YUV444P16;
1090
1091 // case AV_PIX_FMT_AYUV64LE:
1092 // case AV_PIX_FMT_AYUV64BE:
1093 // case AV_PIX_FMT_PAL8:
1094 742 default: return AV_PIX_FMT_NONE;
1095 }
1096 }
1097
1098 31396 av_cold int ff_sws_init_single_context(SwsContext *sws, SwsFilter *srcFilter,
1099 SwsFilter *dstFilter)
1100 {
1101 int i;
1102 int usesVFilter, usesHFilter;
1103 int unscaled;
1104 31396 SwsInternal *c = sws_internal(sws);
1105 31396 SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1106 31396 int srcW = sws->src_w;
1107 31396 int srcH = sws->src_h;
1108 31396 int dstW = sws->dst_w;
1109 31396 int dstH = sws->dst_h;
1110 31396 int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 66, 16);
1111 int flags, cpu_flags;
1112 enum AVPixelFormat srcFormat, dstFormat;
1113 const AVPixFmtDescriptor *desc_src;
1114 const AVPixFmtDescriptor *desc_dst;
1115 31396 int ret = 0;
1116 enum AVPixelFormat tmpFmt;
1117 static const float float_mult = 1.0f / 255.0f;
1118
1119 31396 cpu_flags = av_get_cpu_flags();
1120 31396 flags = sws->flags;
1121 31396 emms_c();
1122
1123
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 31396 unscaled = (srcW == dstW && srcH == dstH);
1124
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 31396 if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1126 31396 sws_setColorspaceDetails(sws, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sws->src_range,
1127 ff_yuv2rgb_coeffs[SWS_CS_DEFAULT],
1128 sws->dst_range, 0, 1 << 16, 1 << 16);
1129
1130 31396 ret = handle_formats(sws);
1131
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 31396 if (ret < 0)
1132 ✗ return ret;
1133 31396 srcFormat = sws->src_format;
1134 31396 dstFormat = sws->dst_format;
1135 31396 desc_src = av_pix_fmt_desc_get(srcFormat);
1136 31396 desc_dst = av_pix_fmt_desc_get(dstFormat);
1137
1138 // If the source has no alpha then disable alpha blendaway
1139
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 31396 if (c->src0Alpha)
1140 30 sws->alpha_blend = SWS_ALPHA_BLEND_NONE;
1141
1142
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 31409 if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1143 13 av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1144
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 31396 times.
 31396 if (!sws_isSupportedInput(srcFormat)) {
1145 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
1146 av_get_pix_fmt_name(srcFormat));
1147 ✗ return AVERROR(EINVAL);
1148 }
1149
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 31396 times.
 31396 if (!sws_isSupportedOutput(dstFormat)) {
1150 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n",
1151 av_get_pix_fmt_name(dstFormat));
1152 ✗ return AVERROR(EINVAL);
1153 }
1154 }
1155 av_assert2(desc_src && desc_dst);
1156
1157 31396 i = flags & (SWS_POINT |
1158 SWS_AREA |
1159 SWS_BILINEAR |
1160 SWS_FAST_BILINEAR |
1161 SWS_BICUBIC |
1162 SWS_X |
1163 SWS_GAUSS |
1164 SWS_LANCZOS |
1165 SWS_SINC |
1166 SWS_SPLINE |
1167 SWS_BICUBLIN);
1168
1169 /* provide a default scaler if not set by caller */
1170
2/2
✓ Branch 0 taken 3084 times.
✓ Branch 1 taken 28312 times.
 31396 if (!i) {
1171
3/4
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✓ Branch 1 taken 3082 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 3084 if (dstW < srcW && dstH < srcH)
1172 ✗ flags |= SWS_BICUBIC;
1173
1/4
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✓ Branch 1 taken 3084 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 3084 else if (dstW > srcW && dstH > srcH)
1174 ✗ flags |= SWS_BICUBIC;
1175 else
1176 3084 flags |= SWS_BICUBIC;
1177 3084 sws->flags = flags;
1178
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28312 times.
 28312 } else if (i & (i - 1)) {
1179 ✗ av_log(c, AV_LOG_ERROR,
1180 "Exactly one scaler algorithm must be chosen, got %X\n", i);
1181 ✗ return AVERROR(EINVAL);
1182 }
1183 /* sanity check */
1184
4/8
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 31396 if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1185 /* FIXME check if these are enough and try to lower them after
1186 * fixing the relevant parts of the code */
1187 ✗ av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1188 srcW, srcH, dstW, dstH);
1189 ✗ return AVERROR(EINVAL);
1190 }
1191
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 31396 times.
 31396 if (flags & SWS_FAST_BILINEAR) {
1192 ✗ if (srcW < 8 || dstW < 8) {
1193 ✗ flags ^= SWS_FAST_BILINEAR | SWS_BILINEAR;
1194 ✗ sws->flags = flags;
1195 }
1196 }
1197
1198
1/2
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✗ Branch 1 not taken.
 31396 if (!dstFilter)
1199 31396 dstFilter = &dummyFilter;
1200
1/2
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✗ Branch 1 not taken.
 31396 if (!srcFilter)
1201 31396 srcFilter = &dummyFilter;
1202
1203 31396 c->lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1204 31396 c->lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1205 31396 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1206 31396 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1207 31396 c->vRounder = 4 * 0x0001000100010001ULL;
1208
1209 ✗ usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1210
1/4
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 31396 (srcFilter->chrV && srcFilter->chrV->length > 1) ||
1211
2/6
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✗ Branch 4 not taken.
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 94188 (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1212
1/4
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✓ Branch 1 taken 31396 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 31396 (dstFilter->chrV && dstFilter->chrV->length > 1);
1213 ✗ usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1214
1/4
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✓ Branch 1 taken 31396 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 31396 (srcFilter->chrH && srcFilter->chrH->length > 1) ||
1215
2/6
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✗ Branch 4 not taken.
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 94188 (dstFilter->lumH && dstFilter->lumH->length > 1) ||
1216
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 31396 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 31396 (dstFilter->chrH && dstFilter->chrH->length > 1);
1217
1218 31396 av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1219 31396 av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1220
1221 31396 c->dst_slice_align = 1 << c->chrDstVSubSample;
1222
1223
4/4
✓ Branch 1 taken 13251 times.
✓ Branch 2 taken 18145 times.
✓ Branch 3 taken 6415 times.
✓ Branch 4 taken 6836 times.
 31396 if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
1224
2/2
✓ Branch 0 taken 49 times.
✓ Branch 1 taken 6366 times.
 6415 if (dstW&1) {
1225 49 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1226 49 flags |= SWS_FULL_CHR_H_INT;
1227 49 sws->flags = flags;
1228 }
1229
1230
2/2
✓ Branch 0 taken 1327 times.
✓ Branch 1 taken 5088 times.
 6415 if ( c->chrSrcHSubSample == 0
1231
2/2
✓ Branch 0 taken 1189 times.
✓ Branch 1 taken 138 times.
 1327 && c->chrSrcVSubSample == 0
1232
1/2
✓ Branch 0 taken 1189 times.
✗ Branch 1 not taken.
 1189 && sws->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
1233
1/2
✓ Branch 0 taken 1189 times.
✗ Branch 1 not taken.
 1189 && !(sws->flags & SWS_FAST_BILINEAR)
1234 ) {
1235 1189 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1236 1189 flags |= SWS_FULL_CHR_H_INT;
1237 1189 sws->flags = flags;
1238 }
1239 }
1240
1241
2/2
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✓ Branch 1 taken 10290 times.
 31396 if (sws->dither == SWS_DITHER_AUTO) {
1242
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21106 times.
 21106 if (flags & SWS_ERROR_DIFFUSION)
1243 ✗ sws->dither = SWS_DITHER_ED;
1244 }
1245
1246
4/4
✓ Branch 0 taken 31343 times.
✓ Branch 1 taken 53 times.
✓ Branch 2 taken 31289 times.
✓ Branch 3 taken 54 times.
 31396 if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
1247
2/2
✓ Branch 0 taken 31219 times.
✓ Branch 1 taken 70 times.
 31289 dstFormat == AV_PIX_FMT_RGB4_BYTE ||
1248
2/2
✓ Branch 0 taken 56 times.
✓ Branch 1 taken 31163 times.
 31219 dstFormat == AV_PIX_FMT_BGR8 ||
1249 dstFormat == AV_PIX_FMT_RGB8) {
1250
1/2
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✗ Branch 1 not taken.
 233 if (sws->dither == SWS_DITHER_AUTO)
1251
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 222 times.
 233 sws->dither = (flags & SWS_FULL_CHR_H_INT) ? SWS_DITHER_ED : SWS_DITHER_BAYER;
1252
2/2
✓ Branch 0 taken 222 times.
✓ Branch 1 taken 11 times.
 233 if (!(flags & SWS_FULL_CHR_H_INT)) {
1253
4/8
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✓ Branch 2 taken 222 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 222 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 222 times.
 222 if (sws->dither == SWS_DITHER_ED || sws->dither == SWS_DITHER_A_DITHER || sws->dither == SWS_DITHER_X_DITHER || sws->dither == SWS_DITHER_NONE) {
1254 ✗ av_log(c, AV_LOG_DEBUG,
1255 "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1256 av_get_pix_fmt_name(dstFormat));
1257 ✗ flags |= SWS_FULL_CHR_H_INT;
1258 ✗ sws->flags = flags;
1259 }
1260 }
1261
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 222 times.
 233 if (flags & SWS_FULL_CHR_H_INT) {
1262
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11 times.
 11 if (sws->dither == SWS_DITHER_BAYER) {
1263 ✗ av_log(c, AV_LOG_DEBUG,
1264 "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1265 av_get_pix_fmt_name(dstFormat));
1266 ✗ sws->dither = SWS_DITHER_ED;
1267 }
1268 }
1269 }
1270
2/2
✓ Branch 1 taken 4808 times.
✓ Branch 2 taken 26588 times.
 31396 if (isPlanarRGB(dstFormat)) {
1271
2/2
✓ Branch 0 taken 642 times.
✓ Branch 1 taken 4166 times.
 4808 if (!(flags & SWS_FULL_CHR_H_INT)) {
1272 642 av_log(c, AV_LOG_DEBUG,
1273 "%s output is not supported with half chroma resolution, switching to full\n",
1274 av_get_pix_fmt_name(dstFormat));
1275 642 flags |= SWS_FULL_CHR_H_INT;
1276 642 sws->flags = flags;
1277 }
1278 }
1279
1280 /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1281 * chroma interpolation */
1282
3/4
✓ Branch 0 taken 8671 times.
✓ Branch 1 taken 22725 times.
✓ Branch 2 taken 8671 times.
✗ Branch 3 not taken.
 40067 if (flags & SWS_FULL_CHR_H_INT &&
1283
2/2
✓ Branch 1 taken 3863 times.
✓ Branch 2 taken 4808 times.
 17342 isAnyRGB(dstFormat) &&
1284
2/2
✓ Branch 1 taken 3861 times.
✓ Branch 2 taken 2 times.
 12534 !isPlanarRGB(dstFormat) &&
1285
2/2
✓ Branch 0 taken 3860 times.
✓ Branch 1 taken 1 times.
 3861 dstFormat != AV_PIX_FMT_RGBA64LE &&
1286
2/2
✓ Branch 0 taken 3858 times.
✓ Branch 1 taken 2 times.
 3860 dstFormat != AV_PIX_FMT_RGBA64BE &&
1287
2/2
✓ Branch 0 taken 3857 times.
✓ Branch 1 taken 1 times.
 3858 dstFormat != AV_PIX_FMT_BGRA64LE &&
1288
2/2
✓ Branch 0 taken 3153 times.
✓ Branch 1 taken 704 times.
 3857 dstFormat != AV_PIX_FMT_BGRA64BE &&
1289
2/2
✓ Branch 0 taken 3150 times.
✓ Branch 1 taken 3 times.
 3153 dstFormat != AV_PIX_FMT_RGB48LE &&
1290
2/2
✓ Branch 0 taken 3148 times.
✓ Branch 1 taken 2 times.
 3150 dstFormat != AV_PIX_FMT_RGB48BE &&
1291
2/2
✓ Branch 0 taken 3147 times.
✓ Branch 1 taken 1 times.
 3148 dstFormat != AV_PIX_FMT_BGR48LE &&
1292
2/2
✓ Branch 0 taken 3094 times.
✓ Branch 1 taken 53 times.
 3147 dstFormat != AV_PIX_FMT_BGR48BE &&
1293
2/2
✓ Branch 0 taken 3080 times.
✓ Branch 1 taken 14 times.
 3094 dstFormat != AV_PIX_FMT_RGBA &&
1294
2/2
✓ Branch 0 taken 2540 times.
✓ Branch 1 taken 540 times.
 3080 dstFormat != AV_PIX_FMT_ARGB &&
1295
2/2
✓ Branch 0 taken 2536 times.
✓ Branch 1 taken 4 times.
 2540 dstFormat != AV_PIX_FMT_BGRA &&
1296
2/2
✓ Branch 0 taken 827 times.
✓ Branch 1 taken 1709 times.
 2536 dstFormat != AV_PIX_FMT_ABGR &&
1297
2/2
✓ Branch 0 taken 687 times.
✓ Branch 1 taken 140 times.
 827 dstFormat != AV_PIX_FMT_RGB24 &&
1298
2/2
✓ Branch 0 taken 685 times.
✓ Branch 1 taken 2 times.
 687 dstFormat != AV_PIX_FMT_BGR24 &&
1299
2/2
✓ Branch 0 taken 683 times.
✓ Branch 1 taken 2 times.
 685 dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1300
2/2
✓ Branch 0 taken 679 times.
✓ Branch 1 taken 4 times.
 683 dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1301
2/2
✓ Branch 0 taken 676 times.
✓ Branch 1 taken 3 times.
 679 dstFormat != AV_PIX_FMT_BGR8 &&
1302
2/2
✓ Branch 0 taken 565 times.
✓ Branch 1 taken 111 times.
 676 dstFormat != AV_PIX_FMT_RGB8 &&
1303
2/2
✓ Branch 0 taken 454 times.
✓ Branch 1 taken 111 times.
 565 dstFormat != AV_PIX_FMT_X2RGB10LE &&
1304 dstFormat != AV_PIX_FMT_X2BGR10LE
1305 ) {
1306 454 av_log(c, AV_LOG_WARNING,
1307 "full chroma interpolation for destination format '%s' not yet implemented\n",
1308 av_get_pix_fmt_name(dstFormat));
1309 454 flags &= ~SWS_FULL_CHR_H_INT;
1310 454 sws->flags = flags;
1311 }
1312
4/4
✓ Branch 1 taken 13251 times.
✓ Branch 2 taken 18145 times.
✓ Branch 3 taken 5034 times.
✓ Branch 4 taken 8217 times.
 31396 if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1313 5034 c->chrDstHSubSample = 1;
1314
1315 // drop some chroma lines if the user wants it
1316 31396 c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1317 SWS_SRC_V_CHR_DROP_SHIFT;
1318 31396 c->chrSrcVSubSample += c->vChrDrop;
1319
1320 /* drop every other pixel for chroma calculation unless user
1321 * wants full chroma */
1322
7/8
✓ Branch 1 taken 8303 times.
✓ Branch 2 taken 23093 times.
✓ Branch 3 taken 7949 times.
✓ Branch 4 taken 354 times.
✓ Branch 5 taken 7949 times.
✗ Branch 6 not taken.
✓ Branch 7 taken 7948 times.
✓ Branch 8 taken 1 times.
 31396 if (isAnyRGB(srcFormat) && !(srcW & 1) && !(flags & SWS_FULL_CHR_H_INP) &&
1323
3/4
✓ Branch 0 taken 7947 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 7947 times.
✗ Branch 3 not taken.
 7948 srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1324
3/4
✓ Branch 0 taken 7947 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 7946 times.
✓ Branch 3 taken 1 times.
 7947 srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1325
4/4
✓ Branch 0 taken 7945 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 7944 times.
✓ Branch 3 taken 1 times.
 7946 srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1326
4/4
✓ Branch 0 taken 7942 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 7831 times.
✓ Branch 3 taken 111 times.
 7944 srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1327
4/4
✓ Branch 0 taken 6814 times.
✓ Branch 1 taken 1017 times.
✓ Branch 2 taken 6813 times.
✓ Branch 3 taken 1 times.
 7831 srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1328
4/4
✓ Branch 0 taken 6811 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 6700 times.
✓ Branch 3 taken 111 times.
 6813 srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1329
4/4
✓ Branch 0 taken 5698 times.
✓ Branch 1 taken 1002 times.
✓ Branch 2 taken 5697 times.
✓ Branch 3 taken 1 times.
 6700 srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1330
4/4
✓ Branch 0 taken 5695 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 5694 times.
✓ Branch 3 taken 1 times.
 5697 srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1331
4/4
✓ Branch 0 taken 5693 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 5692 times.
✓ Branch 3 taken 1 times.
 5694 srcFormat != AV_PIX_FMT_GBRAP14BE && srcFormat != AV_PIX_FMT_GBRAP14LE &&
1332
4/4
✓ Branch 0 taken 5690 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 5549 times.
✓ Branch 3 taken 141 times.
 5692 srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1333
4/4
✓ Branch 0 taken 5231 times.
✓ Branch 1 taken 318 times.
✓ Branch 2 taken 5220 times.
✓ Branch 3 taken 11 times.
 5549 srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1334
4/4
✓ Branch 0 taken 5216 times.
✓ Branch 1 taken 4 times.
✓ Branch 2 taken 5215 times.
✓ Branch 3 taken 1 times.
 5220 srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1335
4/4
✓ Branch 0 taken 5183 times.
✓ Branch 1 taken 32 times.
✓ Branch 2 taken 5182 times.
✓ Branch 3 taken 1 times.
 5215 srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1336
3/4
✓ Branch 0 taken 5181 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 5181 times.
✗ Branch 3 not taken.
 5182 srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1337
3/4
✓ Branch 0 taken 4962 times.
✓ Branch 1 taken 219 times.
✓ Branch 2 taken 4962 times.
✗ Branch 3 not taken.
 5181 srcFormat != AV_PIX_FMT_GBRPF16BE && srcFormat != AV_PIX_FMT_GBRPF16LE &&
1338
2/2
✓ Branch 0 taken 4917 times.
✓ Branch 1 taken 45 times.
 4962 srcFormat != AV_PIX_FMT_GBRAPF16BE && srcFormat != AV_PIX_FMT_GBRAPF16LE &&
1339
2/2
✓ Branch 0 taken 3422 times.
✓ Branch 1 taken 1495 times.
 4917 ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1340
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3422 times.
 3422 (flags & SWS_FAST_BILINEAR)))
1341 1495 c->chrSrcHSubSample = 1;
1342
1343 // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1344 31396 c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1345 31396 c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1346 31396 c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1347 31396 c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1348
1349
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 31396 times.
 31396 if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1350 ✗ goto nomem;
1351
1352 31396 c->srcBpc = desc_src->comp[0].depth;
1353
2/2
✓ Branch 0 taken 635 times.
✓ Branch 1 taken 30761 times.
 31396 if (c->srcBpc < 8)
1354 635 c->srcBpc = 8;
1355 31396 c->dstBpc = desc_dst->comp[0].depth;
1356
2/2
✓ Branch 0 taken 2064 times.
✓ Branch 1 taken 29332 times.
 31396 if (c->dstBpc < 8)
1357 2064 c->dstBpc = 8;
1358
4/4
✓ Branch 1 taken 23093 times.
✓ Branch 2 taken 8303 times.
✓ Branch 3 taken 827 times.
✓ Branch 4 taken 22266 times.
 31396 if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1359 9130 c->srcBpc = 16;
1360
2/2
✓ Branch 0 taken 4987 times.
✓ Branch 1 taken 26409 times.
 31396 if (c->dstBpc == 16)
1361 4987 dst_stride <<= 1;
1362
1363
6/6
✓ Branch 0 taken 2854 times.
✓ Branch 1 taken 28542 times.
✓ Branch 2 taken 2762 times.
✓ Branch 3 taken 92 times.
✓ Branch 4 taken 2497 times.
✓ Branch 5 taken 265 times.
 31396 if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1364
2/2
✓ Branch 0 taken 1562 times.
✓ Branch 1 taken 935 times.
 2497 c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1365
3/4
✓ Branch 0 taken 2497 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1518 times.
✓ Branch 3 taken 44 times.
 6512 c->chrDstW >= c->chrSrcW &&
1366
1/2
✓ Branch 0 taken 1518 times.
✗ Branch 1 not taken.
 1518 (srcW & 15) == 0;
1367
7/8
✓ Branch 0 taken 979 times.
✓ Branch 1 taken 1518 times.
✓ Branch 2 taken 979 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 891 times.
✓ Branch 5 taken 88 times.
✓ Branch 6 taken 165 times.
✓ Branch 7 taken 726 times.
 2497 if (!c->canMMXEXTBeUsed && dstW >= srcW && c->chrDstW >= c->chrSrcW && (srcW & 15) == 0
1368
1369
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 165 times.
 165 && (flags & SWS_FAST_BILINEAR)) {
1370 ✗ if (flags & SWS_PRINT_INFO)
1371 ✗ av_log(c, AV_LOG_INFO,
1372 "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1373 }
1374
4/8
✓ Branch 0 taken 2497 times.
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✗ Branch 4 not taken.
✓ Branch 6 taken 2497 times.
✗ Branch 7 not taken.
✗ Branch 9 not taken.
✓ Branch 10 taken 2497 times.
 2497 if (usesHFilter || isNBPS(sws->src_format) || is16BPS(sws->src_format) || isAnyRGB(sws->src_format))
1375 ✗ c->canMMXEXTBeUsed = 0;
1376 } else
1377 28899 c->canMMXEXTBeUsed = 0;
1378
1379 31396 c->chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1380 31396 c->chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1381
1382 /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1383 * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1384 * correct scaling.
1385 * n-2 is the last chrominance sample available.
1386 * This is not perfect, but no one should notice the difference, the more
1387 * correct variant would be like the vertical one, but that would require
1388 * some special code for the first and last pixel */
1389
1/2
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 31396 if (flags & SWS_FAST_BILINEAR) {
1390 ✗ if (c->canMMXEXTBeUsed) {
1391 ✗ c->lumXInc += 20;
1392 ✗ c->chrXInc += 20;
1393 }
1394 // we don't use the x86 asm scaler if MMX is available
1395 ✗ else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1396 ✗ c->lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1397 ✗ c->chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1398 }
1399 }
1400
1401 // hardcoded for now
1402 31396 c->gamma_value = 2.2;
1403 31396 tmpFmt = AV_PIX_FMT_RGBA64LE;
1404
1405
3/8
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 31396 if (!unscaled && sws->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1406 SwsInternal *c2;
1407 ✗ c->cascaded_context[0] = NULL;
1408
1409 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1410 srcW, srcH, tmpFmt, 64);
1411 ✗ if (ret < 0)
1412 ✗ return ret;
1413
1414 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1415 srcW, srcH, tmpFmt,
1416 flags, NULL, NULL,
1417 ✗ sws->scaler_params);
1418 ✗ if (!c->cascaded_context[0]) {
1419 ✗ return AVERROR(ENOMEM);
1420 }
1421
1422 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1423 dstW, dstH, tmpFmt,
1424 flags, srcFilter, dstFilter,
1425 ✗ sws->scaler_params);
1426
1427 ✗ if (!c->cascaded_context[1])
1428 ✗ return AVERROR(ENOMEM);
1429
1430 ✗ c2 = sws_internal(c->cascaded_context[1]);
1431 ✗ c2->is_internal_gamma = 1;
1432 ✗ c2->gamma = alloc_gamma_tbl( c->gamma_value);
1433 ✗ c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1434 ✗ if (!c2->gamma || !c2->inv_gamma)
1435 ✗ return AVERROR(ENOMEM);
1436
1437 // is_internal_flag is set after creating the context
1438 // to properly create the gamma convert FilterDescriptor
1439 // we have to re-initialize it
1440 ✗ ff_free_filters(c2);
1441 ✗ if ((ret = ff_init_filters(c2)) < 0) {
1442 ✗ sws_freeContext(c->cascaded_context[1]);
1443 ✗ c->cascaded_context[1] = NULL;
1444 ✗ return ret;
1445 }
1446
1447 ✗ c->cascaded_context[2] = NULL;
1448 ✗ if (dstFormat != tmpFmt) {
1449 ✗ ret = av_image_alloc(c->cascaded_tmp[1], c->cascaded_tmpStride[1],
1450 dstW, dstH, tmpFmt, 64);
1451 ✗ if (ret < 0)
1452 ✗ return ret;
1453
1454 ✗ c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1455 dstW, dstH, dstFormat,
1456 flags, NULL, NULL,
1457 ✗ sws->scaler_params);
1458 ✗ if (!c->cascaded_context[2])
1459 ✗ return AVERROR(ENOMEM);
1460 }
1461 ✗ return 0;
1462 }
1463
1464
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 31396 if (isBayer(srcFormat)) {
1465 ✗ if (!unscaled ||
1466 ✗ (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1467 dstFormat != AV_PIX_FMT_RGB48)) {
1468 ✗ enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1469
1470 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1471 srcW, srcH, tmpFormat, 64);
1472 ✗ if (ret < 0)
1473 ✗ return ret;
1474
1475 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1476 srcW, srcH, tmpFormat,
1477 flags, srcFilter, NULL,
1478 ✗ sws->scaler_params);
1479 ✗ if (!c->cascaded_context[0])
1480 ✗ return AVERROR(ENOMEM);
1481
1482 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1483 dstW, dstH, dstFormat,
1484 flags, NULL, dstFilter,
1485 ✗ sws->scaler_params);
1486 ✗ if (!c->cascaded_context[1])
1487 ✗ return AVERROR(ENOMEM);
1488 ✗ return 0;
1489 }
1490 }
1491
1492
6/6
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 31396 if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1493
2/2
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✓ Branch 1 taken 17 times.
 4369 for (i = 0; i < 256; ++i){
1494 4352 c->uint2float_lut[i] = (float)i * float_mult;
1495 }
1496 }
1497
1498 // float will be converted to uint16_t
1499
6/6
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 31396 if ((srcFormat == AV_PIX_FMT_GRAYF32BE || srcFormat == AV_PIX_FMT_GRAYF32LE) &&
1500
4/8
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 1 (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1501 dstFormat != AV_PIX_FMT_GRAY8))){
1502 3 c->srcBpc = 16;
1503 }
1504
1505
4/4
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✓ Branch 5 taken 914 times.
 31396 if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1506 1485 enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1507
1508
3/4
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 1485 if (tmpFormat != AV_PIX_FMT_NONE && sws->alpha_blend != SWS_ALPHA_BLEND_NONE) {
1509 ✗ if (!unscaled ||
1510 ✗ dstFormat != tmpFormat ||
1511 ✗ usesHFilter || usesVFilter ||
1512 ✗ sws->src_range != sws->dst_range
1513 ) {
1514 ✗ c->cascaded_mainindex = 1;
1515 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1516 srcW, srcH, tmpFormat, 64);
1517 ✗ if (ret < 0)
1518 ✗ return ret;
1519
1520 ✗ c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
1521 srcW, srcH, tmpFormat,
1522 ✗ flags, sws->scaler_params);
1523 ✗ if (!c->cascaded_context[0])
1524 ✗ return AVERROR(EINVAL);
1525 ✗ c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
1526 ✗ ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1527 ✗ if (ret < 0)
1528 ✗ return ret;
1529
1530 ✗ c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
1531 dstW, dstH, dstFormat,
1532 ✗ flags, sws->scaler_params);
1533 ✗ if (!c->cascaded_context[1])
1534 ✗ return AVERROR(EINVAL);
1535
1536 ✗ c->cascaded_context[1]->src_range = sws->src_range;
1537 ✗ c->cascaded_context[1]->dst_range = sws->dst_range;
1538 ✗ ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1539 ✗ if (ret < 0)
1540 ✗ return ret;
1541
1542 ✗ return 0;
1543 }
1544 }
1545 }
1546
1547 /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1548
4/6
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 31396 if (unscaled && !usesHFilter && !usesVFilter &&
1549
1/4
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 30426 sws->alpha_blend != SWS_ALPHA_BLEND_NONE &&
1550 ✗ isALPHA(srcFormat) &&
1551 ✗ (sws->src_range == sws->dst_range || isAnyRGB(dstFormat)) &&
1552 ✗ alphaless_fmt(srcFormat) == dstFormat
1553 ) {
1554 ✗ c->convert_unscaled = ff_sws_alphablendaway;
1555
1556 ✗ if (flags & SWS_PRINT_INFO)
1557 ✗ av_log(c, AV_LOG_INFO,
1558 "using alpha blendaway %s -> %s special converter\n",
1559 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1560 ✗ return 0;
1561 }
1562
1563 /* unscaled special cases */
1564
4/6
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 31396 if (unscaled && !usesHFilter && !usesVFilter &&
1565
5/6
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✓ Branch 3 taken 2420 times.
✓ Branch 4 taken 657 times.
✓ Branch 5 taken 2420 times.
✗ Branch 6 not taken.
 32846 (sws->src_range == sws->dst_range || isAnyRGB(dstFormat) ||
1566
2/4
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✗ Branch 3 not taken.
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✓ Branch 6 taken 2420 times.
 4840 isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1567
1568 28006 ff_get_unscaled_swscale(c);
1569
1570
2/2
✓ Branch 0 taken 5476 times.
✓ Branch 1 taken 22530 times.
 28006 if (c->convert_unscaled) {
1571
1/2
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✓ Branch 1 taken 5476 times.
 5476 if (flags & SWS_PRINT_INFO)
1572 ✗ av_log(c, AV_LOG_INFO,
1573 "using unscaled %s -> %s special converter\n",
1574 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1575 5476 return 0;
1576 }
1577 }
1578
1579 #if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
1580 #define USE_MMAP 1
1581 #else
1582 #define USE_MMAP 0
1583 #endif
1584
1585 /* precalculate horizontal scaler filter coefficients */
1586 {
1587 #if HAVE_MMXEXT_INLINE
1588 // can't downscale !!!
1589
3/4
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✓ Branch 1 taken 25128 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 792 times.
 25920 if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
1590 ✗ c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
1591 NULL, NULL, 8);
1592 ✗ c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
1593 NULL, NULL, NULL, 4);
1594
1595 #if USE_MMAP
1596 ✗ c->lumMmxextFilterCode = mmap(NULL, c->lumMmxextFilterCodeSize,
1597 PROT_READ | PROT_WRITE,
1598 MAP_PRIVATE | MAP_ANONYMOUS,
1599 -1, 0);
1600 ✗ c->chrMmxextFilterCode = mmap(NULL, c->chrMmxextFilterCodeSize,
1601 PROT_READ | PROT_WRITE,
1602 MAP_PRIVATE | MAP_ANONYMOUS,
1603 -1, 0);
1604 #elif HAVE_VIRTUALALLOC
1605 c->lumMmxextFilterCode = VirtualAlloc(NULL,
1606 c->lumMmxextFilterCodeSize,
1607 MEM_COMMIT,
1608 PAGE_EXECUTE_READWRITE);
1609 c->chrMmxextFilterCode = VirtualAlloc(NULL,
1610 c->chrMmxextFilterCodeSize,
1611 MEM_COMMIT,
1612 PAGE_EXECUTE_READWRITE);
1613 #else
1614 c->lumMmxextFilterCode = av_malloc(c->lumMmxextFilterCodeSize);
1615 c->chrMmxextFilterCode = av_malloc(c->chrMmxextFilterCodeSize);
1616 #endif
1617
1618 #ifdef MAP_ANONYMOUS
1619 ✗ if (c->lumMmxextFilterCode == MAP_FAILED || c->chrMmxextFilterCode == MAP_FAILED)
1620 #else
1621 if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode)
1622 #endif
1623 {
1624 ✗ av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1625 ✗ return AVERROR(ENOMEM);
1626 }
1627
1628 ✗ if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1629 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1630 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1631 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1632 ✗ goto nomem;
1633
1634 ✗ ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1635 c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1636 ✗ ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1637 c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1638
1639 #if USE_MMAP
1640 ✗ if ( mprotect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1
1641 ✗ || mprotect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1) {
1642 ✗ av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1643 ✗ ret = AVERROR(EINVAL);
1644 ✗ goto fail;
1645 }
1646 #endif
1647 } else
1648 #endif /* HAVE_MMXEXT_INLINE */
1649 {
1650
2/2
✓ Branch 0 taken 1226 times.
✓ Branch 1 taken 24694 times.
 25920 const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1651 PPC_ALTIVEC(cpu_flags) ? 8 :
1652 have_neon(cpu_flags) ? 4 :
1653 have_lsx(cpu_flags) ? 8 :
1654 have_lasx(cpu_flags) ? 8 : 1;
1655
1656
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 25920 times.
 51840 if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1657 &c->hLumFilterSize, c->lumXInc,
1658 srcW, dstW, filterAlign, 1 << 14,
1659 25920 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1660 cpu_flags, srcFilter->lumH, dstFilter->lumH,
1661
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25920 times.
 25920 sws->scaler_params,
1662 get_local_pos(c, 0, 0, 0),
1663 get_local_pos(c, 0, 0, 0))) < 0)
1664 ✗ goto fail;
1665
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 25920 times.
 25920 if (ff_shuffle_filter_coefficients(c, c->hLumFilterPos, c->hLumFilterSize, c->hLumFilter, dstW) < 0)
1666 ✗ goto nomem;
1667
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 25920 times.
 51840 if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1668 &c->hChrFilterSize, c->chrXInc,
1669 c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1670 25920 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1671 cpu_flags, srcFilter->chrH, dstFilter->chrH,
1672
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25920 times.
 25920 sws->scaler_params,
1673 get_local_pos(c, c->chrSrcHSubSample, sws->src_h_chr_pos, 0),
1674 get_local_pos(c, c->chrDstHSubSample, sws->dst_h_chr_pos, 0))) < 0)
1675 ✗ goto fail;
1676
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 25920 times.
 25920 if (ff_shuffle_filter_coefficients(c, c->hChrFilterPos, c->hChrFilterSize, c->hChrFilter, c->chrDstW) < 0)
1677 ✗ goto nomem;
1678 }
1679 } // initialize horizontal stuff
1680
1681 /* precalculate vertical scaler filter coefficients */
1682 {
1683
2/2
✓ Branch 0 taken 1226 times.
✓ Branch 1 taken 24694 times.
 25920 const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1684 PPC_ALTIVEC(cpu_flags) ? 8 :
1685 have_neon(cpu_flags) ? 2 : 1;
1686
1687
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 25920 times.
 51840 if ((ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1688 c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1689 25920 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1690 cpu_flags, srcFilter->lumV, dstFilter->lumV,
1691
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25920 times.
 25920 sws->scaler_params,
1692 get_local_pos(c, 0, 0, 1),
1693 get_local_pos(c, 0, 0, 1))) < 0)
1694 ✗ goto fail;
1695
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 25920 times.
 51840 if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1696 c->chrYInc, c->chrSrcH, c->chrDstH,
1697 filterAlign, (1 << 12),
1698 25920 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1699 cpu_flags, srcFilter->chrV, dstFilter->chrV,
1700
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 25920 times.
 25920 sws->scaler_params,
1701 get_local_pos(c, c->chrSrcVSubSample, sws->src_v_chr_pos, 1),
1702 get_local_pos(c, c->chrDstVSubSample, sws->dst_v_chr_pos, 1))) < 0)
1703
1704 ✗ goto fail;
1705
1706 #if HAVE_ALTIVEC
1707 if (!FF_ALLOC_TYPED_ARRAY(c->vYCoeffsBank, c->vLumFilterSize * sws->dst_h) ||
1708 !FF_ALLOC_TYPED_ARRAY(c->vCCoeffsBank, c->vChrFilterSize * c->chrDstH))
1709 goto nomem;
1710
1711 for (i = 0; i < c->vLumFilterSize * sws->dst_h; i++) {
1712 int j;
1713 short *p = (short *)&c->vYCoeffsBank[i];
1714 for (j = 0; j < 8; j++)
1715 p[j] = c->vLumFilter[i];
1716 }
1717
1718 for (i = 0; i < c->vChrFilterSize * c->chrDstH; i++) {
1719 int j;
1720 short *p = (short *)&c->vCCoeffsBank[i];
1721 for (j = 0; j < 8; j++)
1722 p[j] = c->vChrFilter[i];
1723 }
1724 #endif
1725 }
1726
1727
2/2
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✓ Branch 1 taken 25920 times.
 129600 for (i = 0; i < 4; i++)
1728
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 103680 times.
 103680 if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], sws->dst_w + 3))
1729 ✗ goto nomem;
1730
1731
4/4
✓ Branch 1 taken 629 times.
✓ Branch 2 taken 25291 times.
✓ Branch 4 taken 358 times.
✓ Branch 5 taken 271 times.
 25920 c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(sws->src_format) && isALPHA(sws->dst_format)) ? 1 : 0;
1732
1733 // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1734 25920 c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1735 25920 c->uv_offx2 = dst_stride + 16;
1736
1737
1/2
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 25920 av_assert0(c->chrDstH <= dstH);
1738
1739
1/2
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 25920 if (flags & SWS_PRINT_INFO) {
1740 ✗ const char *scaler = NULL, *cpucaps;
1741
1742 ✗ for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1743 ✗ if (flags & scale_algorithms[i].flag) {
1744 ✗ scaler = scale_algorithms[i].description;
1745 ✗ break;
1746 }
1747 }
1748 ✗ if (!scaler)
1749 ✗ scaler = "ehh flags invalid?!";
1750 ✗ av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1751 scaler,
1752 av_get_pix_fmt_name(srcFormat),
1753 ✗ dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1754 ✗ dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1755 ✗ dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1756 "dithered " : "",
1757 av_get_pix_fmt_name(dstFormat));
1758
1759 ✗ if (INLINE_MMXEXT(cpu_flags))
1760 ✗ cpucaps = "MMXEXT";
1761 ✗ else if (INLINE_MMX(cpu_flags))
1762 ✗ cpucaps = "MMX";
1763 else if (PPC_ALTIVEC(cpu_flags))
1764 cpucaps = "AltiVec";
1765 else
1766 ✗ cpucaps = "C";
1767
1768 ✗ av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1769
1770 ✗ av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1771 ✗ av_log(c, AV_LOG_DEBUG,
1772 "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1773 sws->src_w, sws->src_h, sws->dst_w, sws->dst_h, c->lumXInc, c->lumYInc);
1774 ✗ av_log(c, AV_LOG_DEBUG,
1775 "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1776 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1777 c->chrXInc, c->chrYInc);
1778 }
1779
1780 25920 ff_sws_init_scale(c);
1781
1782 25920 return ff_init_filters(c);
1783 ✗ nomem:
1784 ✗ ret = AVERROR(ENOMEM);
1785 ✗ fail: // FIXME replace things by appropriate error codes
1786 ✗ if (ret == RETCODE_USE_CASCADE) {
1787 ✗ int tmpW = sqrt(srcW * (int64_t)dstW);
1788 ✗ int tmpH = sqrt(srcH * (int64_t)dstH);
1789 ✗ enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1790
1791 ✗ if (isALPHA(srcFormat))
1792 ✗ tmpFormat = AV_PIX_FMT_YUVA420P;
1793
1794 ✗ if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1795 ✗ return AVERROR(EINVAL);
1796
1797 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1798 tmpW, tmpH, tmpFormat, 64);
1799 ✗ if (ret < 0)
1800 ✗ return ret;
1801
1802 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1803 tmpW, tmpH, tmpFormat,
1804 flags, srcFilter, NULL,
1805 ✗ sws->scaler_params);
1806 ✗ if (!c->cascaded_context[0])
1807 ✗ return AVERROR(ENOMEM);
1808
1809 ✗ c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
1810 dstW, dstH, dstFormat,
1811 flags, NULL, dstFilter,
1812 ✗ sws->scaler_params);
1813 ✗ if (!c->cascaded_context[1])
1814 ✗ return AVERROR(ENOMEM);
1815 ✗ return 0;
1816 }
1817 ✗ return ret;
1818 }
1819
1820 ✗ static int context_init_threaded(SwsContext *sws,
1821 SwsFilter *src_filter, SwsFilter *dst_filter)
1822 {
1823 ✗ SwsInternal *c = sws_internal(sws);
1824 int ret;
1825
1826 ✗ ret = avpriv_slicethread_create(&c->slicethread, (void*) sws,
1827 ff_sws_slice_worker, NULL, sws->threads);
1828 ✗ if (ret == AVERROR(ENOSYS)) {
1829 ✗ sws->threads = 1;
1830 ✗ return 0;
1831 ✗ } else if (ret < 0)
1832 ✗ return ret;
1833
1834 ✗ sws->threads = ret;
1835
1836 ✗ c->slice_ctx = av_calloc(sws->threads, sizeof(*c->slice_ctx));
1837 ✗ c->slice_err = av_calloc(sws->threads, sizeof(*c->slice_err));
1838 ✗ if (!c->slice_ctx || !c->slice_err)
1839 ✗ return AVERROR(ENOMEM);
1840
1841 ✗ for (int i = 0; i < sws->threads; i++) {
1842 SwsContext *slice;
1843 ✗ slice = c->slice_ctx[i] = sws_alloc_context();
1844 ✗ if (!slice)
1845 ✗ return AVERROR(ENOMEM);
1846 ✗ sws_internal(slice)->parent = sws;
1847 ✗ c->nb_slice_ctx++;
1848
1849 ✗ ret = av_opt_copy(slice, sws);
1850 ✗ if (ret < 0)
1851 ✗ return ret;
1852 ✗ slice->threads = 1;
1853
1854 ✗ ret = ff_sws_init_single_context(slice, src_filter, dst_filter);
1855 ✗ if (ret < 0)
1856 ✗ return ret;
1857
1858 ✗ if (slice->dither == SWS_DITHER_ED) {
1859 ✗ av_log(c, AV_LOG_VERBOSE,
1860 "Error-diffusion dither is in use, scaling will be single-threaded.");
1861 ✗ break;
1862 }
1863 }
1864
1865 ✗ return 0;
1866 }
1867
1868 9466 av_cold int sws_init_context(SwsContext *sws, SwsFilter *srcFilter,
1869 SwsFilter *dstFilter)
1870 {
1871 9466 SwsInternal *c = sws_internal(sws);
1872 static AVOnce rgb2rgb_once = AV_ONCE_INIT;
1873 enum AVPixelFormat src_format, dst_format;
1874 int ret;
1875
1876 9466 c->frame_src = av_frame_alloc();
1877 9466 c->frame_dst = av_frame_alloc();
1878
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 9466 if (!c->frame_src || !c->frame_dst)
1879 ✗ return AVERROR(ENOMEM);
1880
1881
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 9466 if (ff_thread_once(&rgb2rgb_once, ff_sws_rgb2rgb_init) != 0)
1882 ✗ return AVERROR_UNKNOWN;
1883
1884 9466 src_format = sws->src_format;
1885 9466 dst_format = sws->dst_format;
1886 9466 sws->src_range |= handle_jpeg(&sws->src_format);
1887 9466 sws->dst_range |= handle_jpeg(&sws->dst_format);
1888
1889
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 9466 if (src_format != sws->src_format || dst_format != sws->dst_format)
1890 265 av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
1891
1892
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 9466 if (sws->threads != 1) {
1893 ✗ ret = context_init_threaded(sws, srcFilter, dstFilter);
1894 ✗ if (ret < 0 || sws->threads > 1)
1895 ✗ return ret;
1896 // threading disabled in this build, init as single-threaded
1897 }
1898
1899 9466 return ff_sws_init_single_context(sws, srcFilter, dstFilter);
1900 }
1901
1902 3143 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
1903 int dstW, int dstH, enum AVPixelFormat dstFormat,
1904 int flags, SwsFilter *srcFilter,
1905 SwsFilter *dstFilter, const double *param)
1906 {
1907 SwsContext *sws;
1908
1909 3143 sws = alloc_set_opts(srcW, srcH, srcFormat,
1910 dstW, dstH, dstFormat,
1911 flags, param);
1912
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 3143 if (!sws)
1913 ✗ return NULL;
1914
1915
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 3143 if (sws_init_context(sws, srcFilter, dstFilter) < 0) {
1916 ✗ sws_freeContext(sws);
1917 ✗ return NULL;
1918 }
1919
1920 3143 return sws;
1921 }
1922
1923 ✗ static int isnan_vec(SwsVector *a)
1924 {
1925 int i;
1926 ✗ for (i=0; i<a->length; i++)
1927 ✗ if (isnan(a->coeff[i]))
1928 ✗ return 1;
1929 ✗ return 0;
1930 }
1931
1932 ✗ static void makenan_vec(SwsVector *a)
1933 {
1934 int i;
1935 ✗ for (i=0; i<a->length; i++)
1936 ✗ a->coeff[i] = NAN;
1937 ✗ }
1938
1939 ✗ SwsVector *sws_allocVec(int length)
1940 {
1941 SwsVector *vec;
1942
1943 ✗ if(length <= 0 || length > INT_MAX/ sizeof(double))
1944 ✗ return NULL;
1945
1946 ✗ vec = av_malloc(sizeof(SwsVector));
1947 ✗ if (!vec)
1948 ✗ return NULL;
1949 ✗ vec->length = length;
1950 ✗ vec->coeff = av_malloc(sizeof(double) * length);
1951 ✗ if (!vec->coeff)
1952 ✗ av_freep(&vec);
1953 ✗ return vec;
1954 }
1955
1956 ✗ SwsVector *sws_getGaussianVec(double variance, double quality)
1957 {
1958 ✗ const int length = (int)(variance * quality + 0.5) | 1;
1959 int i;
1960 ✗ double middle = (length - 1) * 0.5;
1961 SwsVector *vec;
1962
1963 ✗ if(variance < 0 || quality < 0)
1964 ✗ return NULL;
1965
1966 ✗ vec = sws_allocVec(length);
1967
1968 ✗ if (!vec)
1969 ✗ return NULL;
1970
1971 ✗ for (i = 0; i < length; i++) {
1972 ✗ double dist = i - middle;
1973 ✗ vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
1974 ✗ sqrt(2 * variance * M_PI);
1975 }
1976
1977 ✗ sws_normalizeVec(vec, 1.0);
1978
1979 ✗ return vec;
1980 }
1981
1982 /**
1983 * Allocate and return a vector with length coefficients, all
1984 * with the same value c.
1985 */
1986 static
1987 ✗ SwsVector *sws_getConstVec(double c, int length)
1988 {
1989 int i;
1990 ✗ SwsVector *vec = sws_allocVec(length);
1991
1992 ✗ if (!vec)
1993 ✗ return NULL;
1994
1995 ✗ for (i = 0; i < length; i++)
1996 ✗ vec->coeff[i] = c;
1997
1998 ✗ return vec;
1999 }
2000
2001 /**
2002 * Allocate and return a vector with just one coefficient, with
2003 * value 1.0.
2004 */
2005 static
2006 ✗ SwsVector *sws_getIdentityVec(void)
2007 {
2008 ✗ return sws_getConstVec(1.0, 1);
2009 }
2010
2011 ✗ static double sws_dcVec(SwsVector *a)
2012 {
2013 int i;
2014 ✗ double sum = 0;
2015
2016 ✗ for (i = 0; i < a->length; i++)
2017 ✗ sum += a->coeff[i];
2018
2019 ✗ return sum;
2020 }
2021
2022 ✗ void sws_scaleVec(SwsVector *a, double scalar)
2023 {
2024 int i;
2025
2026 ✗ for (i = 0; i < a->length; i++)
2027 ✗ a->coeff[i] *= scalar;
2028 ✗ }
2029
2030 ✗ void sws_normalizeVec(SwsVector *a, double height)
2031 {
2032 ✗ sws_scaleVec(a, height / sws_dcVec(a));
2033 ✗ }
2034
2035 ✗ static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2036 {
2037 ✗ int length = FFMAX(a->length, b->length);
2038 int i;
2039 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2040
2041 ✗ if (!vec)
2042 ✗ return NULL;
2043
2044 ✗ for (i = 0; i < a->length; i++)
2045 ✗ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2046 ✗ for (i = 0; i < b->length; i++)
2047 ✗ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2048
2049 ✗ return vec;
2050 }
2051
2052 /* shift left / or right if "shift" is negative */
2053 ✗ static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2054 {
2055 ✗ int length = a->length + FFABS(shift) * 2;
2056 int i;
2057 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2058
2059 ✗ if (!vec)
2060 ✗ return NULL;
2061
2062 ✗ for (i = 0; i < a->length; i++) {
2063 ✗ vec->coeff[i + (length - 1) / 2 -
2064 ✗ (a->length - 1) / 2 - shift] = a->coeff[i];
2065 }
2066
2067 ✗ return vec;
2068 }
2069
2070 static
2071 ✗ void sws_shiftVec(SwsVector *a, int shift)
2072 {
2073 ✗ SwsVector *shifted = sws_getShiftedVec(a, shift);
2074 ✗ if (!shifted) {
2075 ✗ makenan_vec(a);
2076 ✗ return;
2077 }
2078 ✗ av_free(a->coeff);
2079 ✗ a->coeff = shifted->coeff;
2080 ✗ a->length = shifted->length;
2081 ✗ av_free(shifted);
2082 }
2083
2084 static
2085 ✗ void sws_addVec(SwsVector *a, SwsVector *b)
2086 {
2087 ✗ SwsVector *sum = sws_sumVec(a, b);
2088 ✗ if (!sum) {
2089 ✗ makenan_vec(a);
2090 ✗ return;
2091 }
2092 ✗ av_free(a->coeff);
2093 ✗ a->coeff = sum->coeff;
2094 ✗ a->length = sum->length;
2095 ✗ av_free(sum);
2096 }
2097
2098 /**
2099 * Print with av_log() a textual representation of the vector a
2100 * if log_level <= av_log_level.
2101 */
2102 static
2103 ✗ void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2104 {
2105 int i;
2106 ✗ double max = 0;
2107 ✗ double min = 0;
2108 double range;
2109
2110 ✗ for (i = 0; i < a->length; i++)
2111 ✗ if (a->coeff[i] > max)
2112 ✗ max = a->coeff[i];
2113
2114 ✗ for (i = 0; i < a->length; i++)
2115 ✗ if (a->coeff[i] < min)
2116 ✗ min = a->coeff[i];
2117
2118 ✗ range = max - min;
2119
2120 ✗ for (i = 0; i < a->length; i++) {
2121 ✗ int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2122 ✗ av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2123 ✗ for (; x > 0; x--)
2124 ✗ av_log(log_ctx, log_level, " ");
2125 ✗ av_log(log_ctx, log_level, "|\n");
2126 }
2127 ✗ }
2128
2129 ✗ void sws_freeVec(SwsVector *a)
2130 {
2131 ✗ if (!a)
2132 ✗ return;
2133 ✗ av_freep(&a->coeff);
2134 ✗ a->length = 0;
2135 ✗ av_free(a);
2136 }
2137
2138 ✗ void sws_freeFilter(SwsFilter *filter)
2139 {
2140 ✗ if (!filter)
2141 ✗ return;
2142
2143 ✗ sws_freeVec(filter->lumH);
2144 ✗ sws_freeVec(filter->lumV);
2145 ✗ sws_freeVec(filter->chrH);
2146 ✗ sws_freeVec(filter->chrV);
2147 ✗ av_free(filter);
2148 }
2149
2150 ✗ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2151 float lumaSharpen, float chromaSharpen,
2152 float chromaHShift, float chromaVShift,
2153 int verbose)
2154 {
2155 ✗ SwsFilter *filter = av_malloc(sizeof(SwsFilter));
2156 ✗ if (!filter)
2157 ✗ return NULL;
2158
2159 ✗ if (lumaGBlur != 0.0) {
2160 ✗ filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
2161 ✗ filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
2162 } else {
2163 ✗ filter->lumH = sws_getIdentityVec();
2164 ✗ filter->lumV = sws_getIdentityVec();
2165 }
2166
2167 ✗ if (chromaGBlur != 0.0) {
2168 ✗ filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
2169 ✗ filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2170 } else {
2171 ✗ filter->chrH = sws_getIdentityVec();
2172 ✗ filter->chrV = sws_getIdentityVec();
2173 }
2174
2175 ✗ if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2176 ✗ goto fail;
2177
2178 ✗ if (chromaSharpen != 0.0) {
2179 ✗ SwsVector *id = sws_getIdentityVec();
2180 ✗ if (!id)
2181 ✗ goto fail;
2182 ✗ sws_scaleVec(filter->chrH, -chromaSharpen);
2183 ✗ sws_scaleVec(filter->chrV, -chromaSharpen);
2184 ✗ sws_addVec(filter->chrH, id);
2185 ✗ sws_addVec(filter->chrV, id);
2186 ✗ sws_freeVec(id);
2187 }
2188
2189 ✗ if (lumaSharpen != 0.0) {
2190 ✗ SwsVector *id = sws_getIdentityVec();
2191 ✗ if (!id)
2192 ✗ goto fail;
2193 ✗ sws_scaleVec(filter->lumH, -lumaSharpen);
2194 ✗ sws_scaleVec(filter->lumV, -lumaSharpen);
2195 ✗ sws_addVec(filter->lumH, id);
2196 ✗ sws_addVec(filter->lumV, id);
2197 ✗ sws_freeVec(id);
2198 }
2199
2200 ✗ if (chromaHShift != 0.0)
2201 ✗ sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2202
2203 ✗ if (chromaVShift != 0.0)
2204 ✗ sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2205
2206 ✗ sws_normalizeVec(filter->chrH, 1.0);
2207 ✗ sws_normalizeVec(filter->chrV, 1.0);
2208 ✗ sws_normalizeVec(filter->lumH, 1.0);
2209 ✗ sws_normalizeVec(filter->lumV, 1.0);
2210
2211 ✗ if (isnan_vec(filter->chrH) ||
2212 ✗ isnan_vec(filter->chrV) ||
2213 ✗ isnan_vec(filter->lumH) ||
2214 ✗ isnan_vec(filter->lumV))
2215 ✗ goto fail;
2216
2217 ✗ if (verbose)
2218 ✗ sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2219 ✗ if (verbose)
2220 ✗ sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2221
2222 ✗ return filter;
2223
2224 ✗ fail:
2225 ✗ sws_freeVec(filter->lumH);
2226 ✗ sws_freeVec(filter->lumV);
2227 ✗ sws_freeVec(filter->chrH);
2228 ✗ sws_freeVec(filter->chrV);
2229 ✗ av_freep(&filter);
2230 ✗ return NULL;
2231 }
2232
2233 168741 void sws_freeContext(SwsContext *sws)
2234 {
2235 168741 SwsInternal *c = sws_internal(sws);
2236 int i;
2237
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 168741 if (!c)
2238 126556 return;
2239
2240
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 126555 for (i = 0; i < FF_ARRAY_ELEMS(c->graph); i++)
2241 84370 ff_sws_graph_free(&c->graph[i]);
2242
2243
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 64115 for (i = 0; i < c->nb_slice_ctx; i++)
2244 21930 sws_freeContext(c->slice_ctx[i]);
2245 42185 av_freep(&c->slice_ctx);
2246 42185 av_freep(&c->slice_err);
2247
2248 42185 avpriv_slicethread_free(&c->slicethread);
2249
2250
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 210925 for (i = 0; i < 4; i++)
2251 168740 av_freep(&c->dither_error[i]);
2252
2253 42185 av_frame_free(&c->frame_src);
2254 42185 av_frame_free(&c->frame_dst);
2255
2256 42185 av_freep(&c->src_ranges.ranges);
2257
2258 42185 av_freep(&c->vLumFilter);
2259 42185 av_freep(&c->vChrFilter);
2260 42185 av_freep(&c->hLumFilter);
2261 42185 av_freep(&c->hChrFilter);
2262 #if HAVE_ALTIVEC
2263 av_freep(&c->vYCoeffsBank);
2264 av_freep(&c->vCCoeffsBank);
2265 #endif
2266
2267 42185 av_freep(&c->vLumFilterPos);
2268 42185 av_freep(&c->vChrFilterPos);
2269 42185 av_freep(&c->hLumFilterPos);
2270 42185 av_freep(&c->hChrFilterPos);
2271
2272 #if HAVE_MMX_INLINE
2273 #if USE_MMAP
2274
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 42185 if (c->lumMmxextFilterCode)
2275 ✗ munmap(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2276
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 42185 if (c->chrMmxextFilterCode)
2277 ✗ munmap(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2278 #elif HAVE_VIRTUALALLOC
2279 if (c->lumMmxextFilterCode)
2280 VirtualFree(c->lumMmxextFilterCode, 0, MEM_RELEASE);
2281 if (c->chrMmxextFilterCode)
2282 VirtualFree(c->chrMmxextFilterCode, 0, MEM_RELEASE);
2283 #else
2284 av_free(c->lumMmxextFilterCode);
2285 av_free(c->chrMmxextFilterCode);
2286 #endif
2287 42185 c->lumMmxextFilterCode = NULL;
2288 42185 c->chrMmxextFilterCode = NULL;
2289 #endif /* HAVE_MMX_INLINE */
2290
2291 42185 av_freep(&c->yuvTable);
2292 42185 av_freep(&c->formatConvBuffer);
2293
2294 42185 sws_freeContext(c->cascaded_context[0]);
2295 42185 sws_freeContext(c->cascaded_context[1]);
2296 42185 sws_freeContext(c->cascaded_context[2]);
2297 42185 memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2298 42185 av_freep(&c->cascaded_tmp[0][0]);
2299 42185 av_freep(&c->cascaded_tmp[1][0]);
2300
2301 42185 av_freep(&c->gamma);
2302 42185 av_freep(&c->inv_gamma);
2303 #if CONFIG_SMALL
2304 av_freep(&c->xyzgamma);
2305 #endif
2306
2307 42185 av_freep(&c->rgb0_scratch);
2308 42185 av_freep(&c->xyz_scratch);
2309
2310 42185 ff_free_filters(c);
2311
2312 42185 av_free(c);
2313 }
2314
2315 16917 void sws_free_context(SwsContext **pctx)
2316 {
2317 16917 SwsContext *ctx = *pctx;
2318
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 16917 if (!ctx)
2319 ✗ return;
2320
2321 16917 sws_freeContext(ctx);
2322 16917 *pctx = NULL;
2323 }
2324
2325 ✗ SwsContext *sws_getCachedContext(SwsContext *prev, int srcW,
2326 int srcH, enum AVPixelFormat srcFormat,
2327 int dstW, int dstH,
2328 enum AVPixelFormat dstFormat, int flags,
2329 SwsFilter *srcFilter,
2330 SwsFilter *dstFilter,
2331 const double *param)
2332 {
2333 SwsContext *sws;
2334 static const double default_param[2] = { SWS_PARAM_DEFAULT,
2335 SWS_PARAM_DEFAULT };
2336
2337 ✗ if (!param)
2338 ✗ param = default_param;
2339
2340 ✗ if (prev && (prev->src_w == srcW &&
2341 ✗ prev->src_h == srcH &&
2342 ✗ prev->src_format == srcFormat &&
2343 ✗ prev->dst_w == dstW &&
2344 ✗ prev->dst_h == dstH &&
2345 ✗ prev->dst_format == dstFormat &&
2346 ✗ prev->flags == flags &&
2347 ✗ prev->scaler_params[0] == param[0] &&
2348 ✗ prev->scaler_params[1] == param[1])) {
2349 ✗ return prev;
2350 }
2351
2352 ✗ if (!(sws = sws_alloc_context())) {
2353 ✗ sws_free_context(&prev);
2354 ✗ return NULL;
2355 }
2356
2357 ✗ if (prev) {
2358 ✗ av_opt_copy(sws, prev);
2359 ✗ sws_free_context(&prev);
2360 }
2361
2362 ✗ sws->src_w = srcW;
2363 ✗ sws->src_h = srcH;
2364 ✗ sws->src_format = srcFormat;
2365 ✗ sws->dst_w = dstW;
2366 ✗ sws->dst_h = dstH;
2367 ✗ sws->dst_format = dstFormat;
2368 ✗ sws->flags = flags;
2369 ✗ sws->scaler_params[0] = param[0];
2370 ✗ sws->scaler_params[1] = param[1];
2371
2372 ✗ if (sws_init_context(sws, srcFilter, dstFilter) < 0)
2373 ✗ sws_free_context(&sws);
2374
2375 ✗ return sws;
2376 }
2377
2378 ✗ int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
2379 {
2380 Range *tmp;
2381 unsigned int idx;
2382
2383 /* find the first existing range after the new one */
2384 ✗ for (idx = 0; idx < rl->nb_ranges; idx++)
2385 ✗ if (rl->ranges[idx].start > start)
2386 ✗ break;
2387
2388 /* check for overlap */
2389 ✗ if (idx > 0) {
2390 ✗ Range *prev = &rl->ranges[idx - 1];
2391 ✗ if (prev->start + prev->len > start)
2392 ✗ return AVERROR(EINVAL);
2393 }
2394 ✗ if (idx < rl->nb_ranges) {
2395 ✗ Range *next = &rl->ranges[idx];
2396 ✗ if (start + len > next->start)
2397 ✗ return AVERROR(EINVAL);
2398 }
2399
2400 ✗ tmp = av_fast_realloc(rl->ranges, &rl->ranges_allocated,
2401 ✗ (rl->nb_ranges + 1) * sizeof(*rl->ranges));
2402 ✗ if (!tmp)
2403 ✗ return AVERROR(ENOMEM);
2404 ✗ rl->ranges = tmp;
2405
2406 ✗ memmove(rl->ranges + idx + 1, rl->ranges + idx,
2407 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2408 ✗ rl->ranges[idx].start = start;
2409 ✗ rl->ranges[idx].len = len;
2410 ✗ rl->nb_ranges++;
2411
2412 /* merge ranges */
2413 ✗ if (idx > 0) {
2414 ✗ Range *prev = &rl->ranges[idx - 1];
2415 ✗ Range *cur = &rl->ranges[idx];
2416 ✗ if (prev->start + prev->len == cur->start) {
2417 ✗ prev->len += cur->len;
2418 ✗ memmove(rl->ranges + idx - 1, rl->ranges + idx,
2419 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2420 ✗ rl->nb_ranges--;
2421 ✗ idx--;
2422 }
2423 }
2424 ✗ if (idx < rl->nb_ranges - 1) {
2425 ✗ Range *cur = &rl->ranges[idx];
2426 ✗ Range *next = &rl->ranges[idx + 1];
2427 ✗ if (cur->start + cur->len == next->start) {
2428 ✗ cur->len += next->len;
2429 ✗ memmove(rl->ranges + idx, rl->ranges + idx + 1,
2430 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx - 1));
2431 ✗ rl->nb_ranges--;
2432 }
2433 }
2434
2435 ✗ return 0;
2436 }
2437