FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/utils.c
Date: 2025-06-01 09:29:47
Exec Total Coverage
Lines: 737 1332 55.3%
Functions: 21 43 48.8%
Branches: 627 1191 52.6%
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 53496 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 53496 int cpu_flags = av_get_cpu_flags();
100
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 53496 if (!filter)
101 ✗ return 0;
102
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 53496 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 53496 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 210240 static av_cold int get_local_pos(SwsInternal *s, int chr_subsample, int pos, int dir)
164 {
165
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 210240 if (pos == -1 || pos <= -513) {
166 80397 pos = (128 << chr_subsample) - 128;
167 }
168 210240 pos += 128; // relative to ideal left edge
169 210240 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 105120 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 105120 int64_t *filter = NULL;
204 105120 int64_t *filter2 = NULL;
205 105120 const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
206 105120 int ret = -1;
207
208 105120 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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 105120 if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
212 ✗ goto nomem;
213
214
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 187528 if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
215 int i;
216 82408 filterSize = 1;
217
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 82408 if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
218 ✗ goto nomem;
219
220
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 29998231 for (i = 0; i < dstW; i++) {
221 29915823 filter[i * filterSize] = fone;
222 29915823 (*filterPos)[i] = i;
223 }
224
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 22712 } 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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 22411 } else if ((xInc <= (1 << 16) && (flags & SWS_AREA)) ||
240
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 22411 (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 22323 int sizeFactor = -1;
266
267
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 45226 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
268
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 45226 if (flags & scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
269 22323 sizeFactor = scale_algorithms[i].size_factor;
270 22323 break;
271 }
272 }
273
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 22323 if (flags & SWS_LANCZOS)
274 ✗ sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
275
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 22323 av_assert0(sizeFactor > 0);
276
277
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 22323 if (xInc <= 1 << 16)
278 13212 filterSize = 1 + sizeFactor; // upscale
279 else
280 9111 filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
281
282
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 22323 filterSize = FFMIN(filterSize, srcW - 2);
283 22323 filterSize = FFMAX(filterSize, 1);
284
285
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 22323 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
286 ✗ goto nomem;
287 22323 xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
288
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 7940035 for (i = 0; i < dstW; i++) {
289 7917712 int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
290 int j;
291 7917712 (*filterPos)[i] = xx;
292
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 53738668 for (j = 0; j < filterSize; j++) {
293 45820956 int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
294 double floatd;
295 int64_t coeff;
296
297
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 45820956 if (xInc > 1 << 16)
298 13190281 d = d * dstW / srcW;
299 45820956 floatd = d * (1.0 / (1 << 30));
300
301
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 45820956 if (flags & SWS_BICUBIC) {
302
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 45131529 int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
303
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 45131529 int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
304
305
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 45131529 if (d >= 1LL << 31) {
306 7999819 coeff = 0.0;
307 } else {
308 37131710 int64_t dd = (d * d) >> 30;
309 37131710 int64_t ddd = (dd * d) >> 30;
310
311
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 37131710 if (d < 1LL << 30)
312 18578740 coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
313 18578740 (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
314 18578740 (6 * (1 << 24) - 2 * B) * (1 << 30);
315 else
316 18552970 coeff = (-B - 6 * C) * ddd +
317 18552970 (6 * B + 30 * C) * dd +
318 18552970 (-12 * B - 48 * C) * d +
319 18552970 (8 * B + 24 * C) * (1 << 30);
320 }
321 45131529 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 45820956 filter[i * filterSize + j] = coeff;
368 45820956 xx++;
369 }
370 7917712 xDstInSrc += 2LL * xInc;
371 }
372 }
373
374 /* apply src & dst Filter to filter -> filter2
375 * av_free(filter);
376 */
377
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 105120 av_assert0(filterSize > 0);
378 105120 filter2Size = filterSize;
379
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 105120 if (srcFilter)
380 ✗ filter2Size += srcFilter->length - 1;
381
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 105120 if (dstFilter)
382 ✗ filter2Size += dstFilter->length - 1;
383
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 105120 av_assert0(filter2Size > 0);
384
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 105120 if (!FF_ALLOCZ_TYPED_ARRAY(filter2, dstW * filter2Size))
385 ✗ goto nomem;
386
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 38182982 for (i = 0; i < dstW; i++) {
387 int j, k;
388
389
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 38077862 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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 114216204 for (j = 0; j < filterSize; j++)
397 76138342 filter2[i * filter2Size + j] = filter[i * filterSize + j];
398 }
399 // FIXME dstFilter
400
401 38077862 (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
402 }
403 105120 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 105120 minFilterSize = 0;
408
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 38182982 for (i = dstW - 1; i >= 0; i--) {
409 38077862 int min = filter2Size;
410 int j;
411 38077862 int64_t cutOff = 0.0;
412
413 /* get rid of near zero elements on the left by shifting left */
414
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 41511657 for (j = 0; j < filter2Size; j++) {
415 int k;
416 41511657 cutOff += FFABS(filter2[i * filter2Size]);
417
418
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 41511657 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
419 38075041 break;
420
421 /* preserve monotonicity because the core can't handle the
422 * filter otherwise */
423
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 3436616 if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
424 2821 break;
425
426 // move filter coefficients left
427
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 18027296 for (k = 1; k < filter2Size; k++)
428 14593501 filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
429 3433795 filter2[i * filter2Size + k - 1] = 0;
430 3433795 (*filterPos)[i]++;
431 }
432
433 38077862 cutOff = 0;
434 /* count near zeros on the right */
435
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 46200516 for (j = filter2Size - 1; j > 0; j--) {
436 16196680 cutOff += FFABS(filter2[i * filter2Size + j]);
437
438
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 16196680 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
439 8074026 break;
440 8122654 min--;
441 }
442
443
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 38077862 if (min > minFilterSize)
444 105812 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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 105120 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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 105120 av_assert0(minFilterSize > 0);
475 105120 filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
476
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 105120 av_assert0(filterSize > 0);
477 105120 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
478
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 105120 if (!filter)
479 ✗ goto nomem;
480
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 105120 if (filterSize >= MAX_FILTER_SIZE * 16 /
481
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 105120 ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
482 ✗ ret = RETCODE_USE_CASCADE;
483 ✗ goto fail;
484 }
485 105120 *outFilterSize = filterSize;
486
487
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 105120 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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 38182982 for (i = 0; i < dstW; i++) {
493 int j;
494
495
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 116329377 for (j = 0; j < filterSize; j++) {
496
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 78251515 if (j >= filter2Size)
497 10091970 filter[i * filterSize + j] = 0;
498 else
499 68159545 filter[i * filterSize + j] = filter2[i * filter2Size + j];
500
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 78251515 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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 38182982 for (i = 0; i < dstW; i++) {
509 int j;
510
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 38077862 if ((*filterPos)[i] < 0) {
511 // move filter coefficients left to compensate for filterPos
512
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 274333 for (j = 1; j < filterSize; j++) {
513 226860 int left = FFMAX(j + (*filterPos)[i], 0);
514 226860 filter[i * filterSize + left] += filter[i * filterSize + j];
515 226860 filter[i * filterSize + j] = 0;
516 }
517 47473 (*filterPos)[i]= 0;
518 }
519
520
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 38077862 if ((*filterPos)[i] + filterSize > srcW) {
521 70321 int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
522 70321 int64_t acc = 0;
523
524
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 438458 for (j = filterSize - 1; j >= 0; j--) {
525
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 368137 if ((*filterPos)[i] + j >= srcW) {
526 115111 acc += filter[i * filterSize + j];
527 115111 filter[i * filterSize + j] = 0;
528 }
529 }
530
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 438458 for (j = filterSize - 1; j >= 0; j--) {
531
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 368137 if (j < shift) {
532 115111 filter[i * filterSize + j] = 0;
533 } else {
534 253026 filter[i * filterSize + j] = filter[i * filterSize + j - shift];
535 }
536 }
537
538 70321 (*filterPos)[i]-= shift;
539 70321 filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
540 }
541
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 38077862 av_assert0((*filterPos)[i] >= 0);
542
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 38077862 av_assert0((*filterPos)[i] < srcW);
543
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 38077862 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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 105120 if (!FF_ALLOCZ_TYPED_ARRAY(*outFilter, *outFilterSize * (dstW + 3)))
553 ✗ goto nomem;
554
555 /* normalize & store in outFilter */
556
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 38182982 for (i = 0; i < dstW; i++) {
557 int j;
558 38077862 int64_t error = 0;
559 38077862 int64_t sum = 0;
560
561
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 116329377 for (j = 0; j < filterSize; j++) {
562 78251515 sum += filter[i * filterSize + j];
563 }
564 38077862 sum = (sum + one / 2) / one;
565
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 38077862 if (!sum) {
566 ✗ av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
567 ✗ sum = 1;
568 }
569
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 116329377 for (j = 0; j < *outFilterSize; j++) {
570 78251515 int64_t v = filter[i * filterSize + j] + error;
571
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 78251515 int intV = ROUNDED_DIV(v, sum);
572 78251515 (*outFilter)[i * (*outFilterSize) + j] = intV;
573 78251515 error = v - intV * sum;
574 }
575 }
576
577 105120 (*filterPos)[dstW + 0] =
578 105120 (*filterPos)[dstW + 1] =
579 105120 (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
580 * read over the end */
581
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 331276 for (i = 0; i < *outFilterSize; i++) {
582 226156 int k = (dstW - 1) * (*outFilterSize) + i;
583 226156 (*outFilter)[k + 1 * (*outFilterSize)] =
584 226156 (*outFilter)[k + 2 * (*outFilterSize)] =
585 226156 (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
586 }
587
588 105120 ret = 0;
589 105120 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 105120 av_free(filter);
597 105120 av_free(filter2);
598 105120 return ret;
599 }
600
601 18575 static void fill_rgb2yuv_table(SwsInternal *c, const int table[4], int dstRange)
602 {
603 int64_t W, V, Z, Cy, Cu, Cv;
604 18575 int64_t vr = table[0];
605 18575 int64_t ub = table[1];
606 18575 int64_t ug = -table[2];
607 18575 int64_t vg = -table[3];
608 18575 int64_t ONE = 65536;
609 18575 int64_t cy = ONE;
610 18575 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 18575 dstRange = 0; //FIXME range = 1 is handled elsewhere
651
652
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 18575 if (!dstRange) {
653 18575 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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 18575 W = ROUNDED_DIV(ONE*ONE*ug, ub);
661
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 18575 V = ROUNDED_DIV(ONE*ONE*vg, vr);
662 18575 Z = ONE*ONE-W-V;
663
664
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 18575 Cy = ROUNDED_DIV(cy*Z, ONE);
665
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 18575 Cu = ROUNDED_DIV(ub*Z, ONE);
666
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 18575 Cv = ROUNDED_DIV(vr*Z, ONE);
667
668
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 18575 c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
669 18575 c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
670
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 18575 c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
671
672
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 18575 c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
673 18575 c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
674
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 18575 c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
675
676
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 18575 c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
677 18575 c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
678
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 18575 c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
679
680
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 18575 if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
681 18575 c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
682 18575 c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
683 18575 c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
684 18575 c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
685 18575 c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
686 18575 c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
687 18575 c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
688 18575 c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
689 18575 c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
690 }
691
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 5219575 for(i=0; i<FF_ARRAY_ELEMS(map); i++)
692
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 5201000 AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
693 18575 }
694
695 #if CONFIG_SMALL
696 static void init_xyz_tables(uint16_t xyzgamma_tab[4096], uint16_t xyzgammainv_tab[65536],
697 uint16_t rgbgamma_tab[65536], uint16_t rgbgammainv_tab[4096])
698 #else
699 static uint16_t xyzgamma_tab[4096], rgbgammainv_tab[4096];
700 static uint16_t rgbgamma_tab[65536], xyzgammainv_tab[65536];
701 37 static av_cold void init_xyz_tables(void)
702 #endif
703 {
704 37 double xyzgamma = XYZ_GAMMA;
705 37 double rgbgamma = 1.0 / RGB_GAMMA;
706 37 double xyzgammainv = 1.0 / XYZ_GAMMA;
707 37 double rgbgammainv = RGB_GAMMA;
708
709 /* set input gamma vectors */
710
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 151589 for (int i = 0; i < 4096; i++) {
711 151552 xyzgamma_tab[i] = lrint(pow(i / 4095.0, xyzgamma) * 65535.0);
712 151552 rgbgammainv_tab[i] = lrint(pow(i / 4095.0, rgbgammainv) * 65535.0);
713 }
714
715 /* set output gamma vectors */
716
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 2424869 for (int i = 0; i < 65536; i++) {
717 2424832 rgbgamma_tab[i] = lrint(pow(i / 65535.0, rgbgamma) * 4095.0);
718 2424832 xyzgammainv_tab[i] = lrint(pow(i / 65535.0, xyzgammainv) * 4095.0);
719 }
720 37 }
721
722 150 static int fill_xyztables(SwsInternal *c)
723 {
724 static const int16_t xyz2rgb_matrix[3][4] = {
725 {13270, -6295, -2041},
726 {-3969, 7682, 170},
727 { 228, -835, 4329} };
728 static const int16_t rgb2xyz_matrix[3][4] = {
729 {1689, 1464, 739},
730 { 871, 2929, 296},
731 { 79, 488, 3891} };
732
733
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 150 if (c->xyzgamma)
734 100 return 0;
735
736 50 memcpy(c->xyz2rgb_matrix, xyz2rgb_matrix, sizeof(c->xyz2rgb_matrix));
737 50 memcpy(c->rgb2xyz_matrix, rgb2xyz_matrix, sizeof(c->rgb2xyz_matrix));
738
739 #if CONFIG_SMALL
740 c->xyzgamma = av_malloc(sizeof(uint16_t) * 2 * (4096 + 65536));
741 if (!c->xyzgamma)
742 return AVERROR(ENOMEM);
743 c->rgbgammainv = c->xyzgamma + 4096;
744 c->rgbgamma = c->rgbgammainv + 4096;
745 c->xyzgammainv = c->rgbgamma + 65536;
746 init_xyz_tables(c->xyzgamma, c->xyzgammainv, c->rgbgamma, c->rgbgammainv);
747 #else
748 50 c->xyzgamma = xyzgamma_tab;
749 50 c->rgbgamma = rgbgamma_tab;
750 50 c->xyzgammainv = xyzgammainv_tab;
751 50 c->rgbgammainv = rgbgammainv_tab;
752
753 static AVOnce xyz_init_static_once = AV_ONCE_INIT;
754 50 ff_thread_once(&xyz_init_static_once, init_xyz_tables);
755 #endif
756 50 return 0;
757 }
758
759 19012 static int handle_jpeg(enum AVPixelFormat *format)
760 {
761
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 19012 switch (*format) {
762 95 case AV_PIX_FMT_YUVJ420P:
763 95 *format = AV_PIX_FMT_YUV420P;
764 95 return 1;
765 16 case AV_PIX_FMT_YUVJ411P:
766 16 *format = AV_PIX_FMT_YUV411P;
767 16 return 1;
768 53 case AV_PIX_FMT_YUVJ422P:
769 53 *format = AV_PIX_FMT_YUV422P;
770 53 return 1;
771 62 case AV_PIX_FMT_YUVJ444P:
772 62 *format = AV_PIX_FMT_YUV444P;
773 62 return 1;
774 44 case AV_PIX_FMT_YUVJ440P:
775 44 *format = AV_PIX_FMT_YUV440P;
776 44 return 1;
777 417 case AV_PIX_FMT_GRAY8:
778 case AV_PIX_FMT_YA8:
779 case AV_PIX_FMT_GRAY9LE:
780 case AV_PIX_FMT_GRAY9BE:
781 case AV_PIX_FMT_GRAY10LE:
782 case AV_PIX_FMT_GRAY10BE:
783 case AV_PIX_FMT_GRAY12LE:
784 case AV_PIX_FMT_GRAY12BE:
785 case AV_PIX_FMT_GRAY14LE:
786 case AV_PIX_FMT_GRAY14BE:
787 case AV_PIX_FMT_GRAY16LE:
788 case AV_PIX_FMT_GRAY16BE:
789 case AV_PIX_FMT_YA16BE:
790 case AV_PIX_FMT_YA16LE:
791 417 return 1;
792 18325 default:
793 18325 return 0;
794 }
795 }
796
797 184100 static int handle_0alpha(enum AVPixelFormat *format)
798 {
799
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 184100 switch (*format) {
800 19 case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
801 51 case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
802 19 case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
803 19 case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
804 183992 default: return 0;
805 }
806 }
807
808 184100 static int handle_xyz(enum AVPixelFormat *format)
809 {
810
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 184100 switch (*format) {
811 14 case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
812 38 case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
813 184048 default: return 0;
814 }
815 }
816
817 92050 static int handle_formats(SwsContext *sws)
818 {
819 92050 SwsInternal *c = sws_internal(sws);
820 92050 c->src0Alpha |= handle_0alpha(&sws->src_format);
821 92050 c->dst0Alpha |= handle_0alpha(&sws->dst_format);
822 92050 c->srcXYZ |= handle_xyz(&sws->src_format);
823 92050 c->dstXYZ |= handle_xyz(&sws->dst_format);
824
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 92050 if (c->srcXYZ || c->dstXYZ)
825 150 return fill_xyztables(c);
826 else
827 91900 return 0;
828 }
829
830 132840 static int range_override_needed(enum AVPixelFormat format)
831 {
832
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 132840 return !isYUV(format) && !isGray(format);
833 }
834
835 60254 int sws_setColorspaceDetails(SwsContext *sws, const int inv_table[4],
836 int srcRange, const int table[4], int dstRange,
837 int brightness, int contrast, int saturation)
838 {
839 60254 SwsInternal *c = sws_internal(sws);
840 const AVPixFmtDescriptor *desc_dst;
841 const AVPixFmtDescriptor *desc_src;
842 60254 int ret, need_reinit = 0;
843
844
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 60254 if (c->nb_slice_ctx) {
845 ✗ int parent_ret = 0;
846 ✗ for (int i = 0; i < c->nb_slice_ctx; i++) {
847 ✗ int ret = sws_setColorspaceDetails(c->slice_ctx[i], inv_table,
848 srcRange, table, dstRange,
849 brightness, contrast, saturation);
850 ✗ if (ret < 0)
851 ✗ parent_ret = ret;
852 }
853
854 ✗ return parent_ret;
855 }
856
857 60254 ret = handle_formats(sws);
858
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 60254 if (ret < 0)
859 ✗ return ret;
860 60254 desc_dst = av_pix_fmt_desc_get(sws->dst_format);
861 60254 desc_src = av_pix_fmt_desc_get(sws->src_format);
862
863
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 60254 if(range_override_needed(sws->dst_format))
864 23543 dstRange = 0;
865
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 60254 if(range_override_needed(sws->src_format))
866 18252 srcRange = 0;
867
868
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 60254 if (sws->src_range != srcRange ||
869
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 59164 sws->dst_range != dstRange ||
870
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 57610 c->brightness != brightness ||
871
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 57610 c->contrast != contrast ||
872
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 28458 c->saturation != saturation ||
873
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 28458 memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
874
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 28316 memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
875 )
876 31938 need_reinit = 1;
877
878 60254 memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
879 60254 memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
880
881
882
883 60254 c->brightness = brightness;
884 60254 c->contrast = contrast;
885 60254 c->saturation = saturation;
886 60254 sws->src_range = srcRange;
887 60254 sws->dst_range = dstRange;
888
889
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 60254 if (need_reinit)
890 31938 ff_sws_init_range_convert(c);
891
892 60254 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
893 60254 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
894
895
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 60254 if (c->cascaded_context[c->cascaded_mainindex])
896 ✗ return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
897
898
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 60254 if (!need_reinit)
899 28316 return 0;
900
901
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 31938 if ((isYUV(sws->dst_format) || isGray(sws->dst_format)) && (isYUV(sws->src_format) || isGray(sws->src_format))) {
902
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 13363 if (!c->cascaded_context[0] &&
903
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 13363 memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
904
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 1 sws->src_w && sws->src_h && sws->dst_w && sws->dst_h) {
905 enum AVPixelFormat tmp_format;
906 int tmp_width, tmp_height;
907 1 int srcW = sws->src_w;
908 1 int srcH = sws->src_h;
909 1 int dstW = sws->dst_w;
910 1 int dstH = sws->dst_h;
911 int ret;
912 1 av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
913
914
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 1 if (isNBPS(sws->dst_format) || is16BPS(sws->dst_format)) {
915 ✗ if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
916 ✗ tmp_format = AV_PIX_FMT_BGRA64;
917 } else {
918 ✗ tmp_format = AV_PIX_FMT_BGR48;
919 }
920 } else {
921
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 1 if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
922 ✗ tmp_format = AV_PIX_FMT_BGRA;
923 } else {
924 1 tmp_format = AV_PIX_FMT_BGR24;
925 }
926 }
927
928
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 1 if (srcW*srcH > dstW*dstH) {
929 ✗ tmp_width = dstW;
930 ✗ tmp_height = dstH;
931 } else {
932 1 tmp_width = srcW;
933 1 tmp_height = srcH;
934 }
935
936 1 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
937 tmp_width, tmp_height, tmp_format, 64);
938
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 1 if (ret < 0)
939 ✗ return ret;
940
941 2 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, sws->src_format,
942 tmp_width, tmp_height, tmp_format,
943 1 sws->flags, sws->scaler_params);
944
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 1 if (!c->cascaded_context[0])
945 ✗ return -1;
946
947 1 c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
948 1 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
949
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 1 if (ret < 0)
950 ✗ return ret;
951 //we set both src and dst depending on that the RGB side will be ignored
952 1 sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
953 srcRange, table, dstRange,
954 brightness, contrast, saturation);
955
956 2 c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
957 1 dstW, dstH, sws->dst_format,
958 1 sws->flags, sws->scaler_params);
959
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 1 if (!c->cascaded_context[1])
960 ✗ return -1;
961 1 c->cascaded_context[1]->src_range = srcRange;
962 1 c->cascaded_context[1]->dst_range = dstRange;
963 1 ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
964
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 1 if (ret < 0)
965 ✗ return ret;
966 1 sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
967 srcRange, table, dstRange,
968 0, 1 << 16, 1 << 16);
969 1 return 0;
970 }
971 //We do not support this combination currently, we need to cascade more contexts to compensate
972
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 13362 if (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
973 ✗ return -1; //AVERROR_PATCHWELCOME;
974 13362 return 0;
975 }
976
977
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 18575 if (!isYUV(sws->dst_format) && !isGray(sws->dst_format)) {
978 13292 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
979 contrast, saturation);
980 // FIXME factorize
981
982 #if ARCH_PPC
983 ff_yuv2rgb_init_tables_ppc(c, inv_table, brightness,
984 contrast, saturation);
985 #endif
986 }
987
988 18575 fill_rgb2yuv_table(c, table, dstRange);
989
990 18575 return 0;
991 }
992
993 6166 int sws_getColorspaceDetails(SwsContext *sws, int **inv_table,
994 int *srcRange, int **table, int *dstRange,
995 int *brightness, int *contrast, int *saturation)
996 {
997 6166 SwsInternal *c = sws_internal(sws);
998
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 6166 if (!c)
999 ✗ return -1;
1000
1001
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 6166 if (c->nb_slice_ctx) {
1002 ✗ return sws_getColorspaceDetails(c->slice_ctx[0], inv_table, srcRange,
1003 table, dstRange, brightness, contrast,
1004 saturation);
1005 }
1006
1007 6166 *inv_table = c->srcColorspaceTable;
1008 6166 *table = c->dstColorspaceTable;
1009
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 6166 *srcRange = range_override_needed(sws->src_format) ? 1 : sws->src_range;
1010
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 6166 *dstRange = range_override_needed(sws->dst_format) ? 1 : sws->dst_range;
1011 6166 *brightness = c->brightness;
1012 6166 *contrast = c->contrast;
1013 6166 *saturation = c->saturation;
1014
1015 6166 return 0;
1016 }
1017
1018 42651 SwsContext *sws_alloc_context(void)
1019 {
1020 42651 SwsInternal *c = (SwsInternal *) av_mallocz(sizeof(SwsInternal));
1021
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 42651 if (!c)
1022 ✗ return NULL;
1023
1024 42651 c->opts.av_class = &ff_sws_context_class;
1025 42651 av_opt_set_defaults(c);
1026 42651 atomic_init(&c->stride_unaligned_warned, 0);
1027 42651 atomic_init(&c->data_unaligned_warned, 0);
1028
1029 42651 return &c->opts;
1030 }
1031
1032 ✗ static uint16_t * alloc_gamma_tbl(double e)
1033 {
1034 ✗ int i = 0;
1035 uint16_t * tbl;
1036 ✗ tbl = (uint16_t*)av_malloc(sizeof(uint16_t) * 1 << 16);
1037 ✗ if (!tbl)
1038 ✗ return NULL;
1039
1040 ✗ for (i = 0; i < 65536; ++i) {
1041 ✗ tbl[i] = pow(i / 65535.0, e) * 65535.0;
1042 }
1043 ✗ return tbl;
1044 }
1045
1046 1485 static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1047 {
1048
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 1485 switch(fmt) {
1049 12 case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1050 12 case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1051 2 case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1052 220 case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1053 20 case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1054
1055 364 case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1056 3 case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1057 ✗ case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1058
1059 51 case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1060
1061 1 case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1062 ✗ case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1063
1064 1 case AV_PIX_FMT_GBRAP12LE: return AV_PIX_FMT_GBRP12;
1065 ✗ case AV_PIX_FMT_GBRAP12BE: return AV_PIX_FMT_GBRP12;
1066
1067 ✗ case AV_PIX_FMT_GBRAP14LE: return AV_PIX_FMT_GBRP14;
1068 ✗ case AV_PIX_FMT_GBRAP14BE: return AV_PIX_FMT_GBRP14;
1069
1070 1 case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1071 10 case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1072
1073 1 case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1074 10 case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1075 1 case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1076 ✗ case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1077
1078 20 case AV_PIX_FMT_YA16BE: return AV_PIX_FMT_GRAY16;
1079 ✗ case AV_PIX_FMT_YA16LE: return AV_PIX_FMT_GRAY16;
1080
1081 ✗ case AV_PIX_FMT_YUVA420P9BE: return AV_PIX_FMT_YUV420P9;
1082 ✗ case AV_PIX_FMT_YUVA422P9BE: return AV_PIX_FMT_YUV422P9;
1083 ✗ case AV_PIX_FMT_YUVA444P9BE: return AV_PIX_FMT_YUV444P9;
1084 ✗ case AV_PIX_FMT_YUVA420P9LE: return AV_PIX_FMT_YUV420P9;
1085 ✗ case AV_PIX_FMT_YUVA422P9LE: return AV_PIX_FMT_YUV422P9;
1086 ✗ case AV_PIX_FMT_YUVA444P9LE: return AV_PIX_FMT_YUV444P9;
1087 ✗ case AV_PIX_FMT_YUVA420P10BE: return AV_PIX_FMT_YUV420P10;
1088 ✗ case AV_PIX_FMT_YUVA422P10BE: return AV_PIX_FMT_YUV422P10;
1089 ✗ case AV_PIX_FMT_YUVA444P10BE: return AV_PIX_FMT_YUV444P10;
1090 ✗ case AV_PIX_FMT_YUVA420P10LE: return AV_PIX_FMT_YUV420P10;
1091 ✗ case AV_PIX_FMT_YUVA422P10LE: return AV_PIX_FMT_YUV422P10;
1092 ✗ case AV_PIX_FMT_YUVA444P10LE: return AV_PIX_FMT_YUV444P10;
1093 ✗ case AV_PIX_FMT_YUVA420P16BE: return AV_PIX_FMT_YUV420P16;
1094 ✗ case AV_PIX_FMT_YUVA422P16BE: return AV_PIX_FMT_YUV422P16;
1095 ✗ case AV_PIX_FMT_YUVA444P16BE: return AV_PIX_FMT_YUV444P16;
1096 ✗ case AV_PIX_FMT_YUVA420P16LE: return AV_PIX_FMT_YUV420P16;
1097 10 case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1098 4 case AV_PIX_FMT_YUVA444P16LE: return AV_PIX_FMT_YUV444P16;
1099
1100 // case AV_PIX_FMT_AYUV64LE:
1101 // case AV_PIX_FMT_AYUV64BE:
1102 // case AV_PIX_FMT_PAL8:
1103 742 default: return AV_PIX_FMT_NONE;
1104 }
1105 }
1106
1107 31796 av_cold int ff_sws_init_single_context(SwsContext *sws, SwsFilter *srcFilter,
1108 SwsFilter *dstFilter)
1109 {
1110 int i;
1111 int usesVFilter, usesHFilter;
1112 int unscaled;
1113 31796 SwsInternal *c = sws_internal(sws);
1114 31796 SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1115 31796 int srcW = sws->src_w;
1116 31796 int srcH = sws->src_h;
1117 31796 int dstW = sws->dst_w;
1118 31796 int dstH = sws->dst_h;
1119 31796 int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 66, 16);
1120 int flags, cpu_flags;
1121 enum AVPixelFormat srcFormat, dstFormat;
1122 const AVPixFmtDescriptor *desc_src;
1123 const AVPixFmtDescriptor *desc_dst;
1124 31796 int ret = 0;
1125 enum AVPixelFormat tmpFmt;
1126 static const float float_mult = 1.0f / 255.0f;
1127
1128 31796 cpu_flags = av_get_cpu_flags();
1129 31796 flags = sws->flags;
1130 31796 emms_c();
1131
1132
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 31796 unscaled = (srcW == dstW && srcH == dstH);
1133
1134
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 31796 if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1135 31796 sws_setColorspaceDetails(sws, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sws->src_range,
1136 ff_yuv2rgb_coeffs[SWS_CS_DEFAULT],
1137 sws->dst_range, 0, 1 << 16, 1 << 16);
1138
1139 31796 ret = handle_formats(sws);
1140
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 31796 if (ret < 0)
1141 ✗ return ret;
1142 31796 srcFormat = sws->src_format;
1143 31796 dstFormat = sws->dst_format;
1144 31796 desc_src = av_pix_fmt_desc_get(srcFormat);
1145 31796 desc_dst = av_pix_fmt_desc_get(dstFormat);
1146
1147 // If the source has no alpha then disable alpha blendaway
1148
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 31796 if (c->src0Alpha)
1149 30 sws->alpha_blend = SWS_ALPHA_BLEND_NONE;
1150
1151
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✓ Branch 3 taken 13 times.
✓ Branch 4 taken 30813 times.
✓ Branch 5 taken 13 times.
✗ Branch 6 not taken.
 31809 if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1152 13 av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1153
1/2
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✓ Branch 2 taken 31796 times.
 31796 if (!sws_isSupportedInput(srcFormat)) {
1154 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
1155 av_get_pix_fmt_name(srcFormat));
1156 ✗ return AVERROR(EINVAL);
1157 }
1158
1/2
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✓ Branch 2 taken 31796 times.
 31796 if (!sws_isSupportedOutput(dstFormat)) {
1159 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n",
1160 av_get_pix_fmt_name(dstFormat));
1161 ✗ return AVERROR(EINVAL);
1162 }
1163 }
1164 av_assert2(desc_src && desc_dst);
1165
1166 31796 i = flags & (SWS_POINT |
1167 SWS_AREA |
1168 SWS_BILINEAR |
1169 SWS_FAST_BILINEAR |
1170 SWS_BICUBIC |
1171 SWS_X |
1172 SWS_GAUSS |
1173 SWS_LANCZOS |
1174 SWS_SINC |
1175 SWS_SPLINE |
1176 SWS_BICUBLIN);
1177
1178 /* provide a default scaler if not set by caller */
1179
2/2
✓ Branch 0 taken 3084 times.
✓ Branch 1 taken 28712 times.
 31796 if (!i) {
1180
3/4
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✓ Branch 3 taken 2 times.
 3084 if (dstW < srcW && dstH < srcH)
1181 ✗ flags |= SWS_BICUBIC;
1182
1/4
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✗ Branch 2 not taken.
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 3084 else if (dstW > srcW && dstH > srcH)
1183 ✗ flags |= SWS_BICUBIC;
1184 else
1185 3084 flags |= SWS_BICUBIC;
1186 3084 sws->flags = flags;
1187
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28712 times.
 28712 } else if (i & (i - 1)) {
1188 ✗ av_log(c, AV_LOG_ERROR,
1189 "Exactly one scaler algorithm must be chosen, got %X\n", i);
1190 ✗ return AVERROR(EINVAL);
1191 }
1192 /* sanity check */
1193
4/8
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 31796 if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1194 /* FIXME check if these are enough and try to lower them after
1195 * fixing the relevant parts of the code */
1196 ✗ av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1197 srcW, srcH, dstW, dstH);
1198 ✗ return AVERROR(EINVAL);
1199 }
1200
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 31796 times.
 31796 if (flags & SWS_FAST_BILINEAR) {
1201 ✗ if (srcW < 8 || dstW < 8) {
1202 ✗ flags ^= SWS_FAST_BILINEAR | SWS_BILINEAR;
1203 ✗ sws->flags = flags;
1204 }
1205 }
1206
1207
1/2
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✗ Branch 1 not taken.
 31796 if (!dstFilter)
1208 31796 dstFilter = &dummyFilter;
1209
1/2
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✗ Branch 1 not taken.
 31796 if (!srcFilter)
1210 31796 srcFilter = &dummyFilter;
1211
1212 31796 c->lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1213 31796 c->lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1214 31796 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1215 31796 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1216 31796 c->vRounder = 4 * 0x0001000100010001ULL;
1217
1218 ✗ usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1219
1/4
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 31796 (srcFilter->chrV && srcFilter->chrV->length > 1) ||
1220
2/6
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 95388 (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1221
1/4
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✓ Branch 1 taken 31796 times.
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✗ Branch 3 not taken.
 31796 (dstFilter->chrV && dstFilter->chrV->length > 1);
1222 ✗ usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1223
1/4
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 31796 (srcFilter->chrH && srcFilter->chrH->length > 1) ||
1224
2/6
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 95388 (dstFilter->lumH && dstFilter->lumH->length > 1) ||
1225
1/4
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 31796 (dstFilter->chrH && dstFilter->chrH->length > 1);
1226
1227 31796 av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1228 31796 av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1229
1230 31796 c->dst_slice_align = 1 << c->chrDstVSubSample;
1231
1232
4/4
✓ Branch 1 taken 13281 times.
✓ Branch 2 taken 18515 times.
✓ Branch 3 taken 6418 times.
✓ Branch 4 taken 6863 times.
 31796 if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
1233
2/2
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✓ Branch 1 taken 6369 times.
 6418 if (dstW&1) {
1234 49 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1235 49 flags |= SWS_FULL_CHR_H_INT;
1236 49 sws->flags = flags;
1237 }
1238
1239
2/2
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✓ Branch 1 taken 5088 times.
 6418 if ( c->chrSrcHSubSample == 0
1240
2/2
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✓ Branch 1 taken 138 times.
 1330 && c->chrSrcVSubSample == 0
1241
1/2
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✗ Branch 1 not taken.
 1192 && sws->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
1242
1/2
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✗ Branch 1 not taken.
 1192 && !(sws->flags & SWS_FAST_BILINEAR)
1243 ) {
1244 1192 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1245 1192 flags |= SWS_FULL_CHR_H_INT;
1246 1192 sws->flags = flags;
1247 }
1248 }
1249
1250
2/2
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✓ Branch 1 taken 10480 times.
 31796 if (sws->dither == SWS_DITHER_AUTO) {
1251
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21316 times.
 21316 if (flags & SWS_ERROR_DIFFUSION)
1252 ✗ sws->dither = SWS_DITHER_ED;
1253 }
1254
1255
4/4
✓ Branch 0 taken 31743 times.
✓ Branch 1 taken 53 times.
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✓ Branch 3 taken 54 times.
 31796 if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
1256
2/2
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✓ Branch 1 taken 70 times.
 31689 dstFormat == AV_PIX_FMT_RGB4_BYTE ||
1257
2/2
✓ Branch 0 taken 56 times.
✓ Branch 1 taken 31563 times.
 31619 dstFormat == AV_PIX_FMT_BGR8 ||
1258 dstFormat == AV_PIX_FMT_RGB8) {
1259
1/2
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✗ Branch 1 not taken.
 233 if (sws->dither == SWS_DITHER_AUTO)
1260
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;
1261
2/2
✓ Branch 0 taken 222 times.
✓ Branch 1 taken 11 times.
 233 if (!(flags & SWS_FULL_CHR_H_INT)) {
1262
4/8
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✓ Branch 4 taken 222 times.
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✓ 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) {
1263 ✗ av_log(c, AV_LOG_DEBUG,
1264 "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1265 av_get_pix_fmt_name(dstFormat));
1266 ✗ flags |= SWS_FULL_CHR_H_INT;
1267 ✗ sws->flags = flags;
1268 }
1269 }
1270
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 222 times.
 233 if (flags & SWS_FULL_CHR_H_INT) {
1271
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11 times.
 11 if (sws->dither == SWS_DITHER_BAYER) {
1272 ✗ av_log(c, AV_LOG_DEBUG,
1273 "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1274 av_get_pix_fmt_name(dstFormat));
1275 ✗ sws->dither = SWS_DITHER_ED;
1276 }
1277 }
1278 }
1279
2/2
✓ Branch 1 taken 4828 times.
✓ Branch 2 taken 26968 times.
 31796 if (isPlanarRGB(dstFormat)) {
1280
2/2
✓ Branch 0 taken 642 times.
✓ Branch 1 taken 4186 times.
 4828 if (!(flags & SWS_FULL_CHR_H_INT)) {
1281 642 av_log(c, AV_LOG_DEBUG,
1282 "%s output is not supported with half chroma resolution, switching to full\n",
1283 av_get_pix_fmt_name(dstFormat));
1284 642 flags |= SWS_FULL_CHR_H_INT;
1285 642 sws->flags = flags;
1286 }
1287 }
1288
1289 /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1290 * chroma interpolation */
1291
3/4
✓ Branch 0 taken 8701 times.
✓ Branch 1 taken 23095 times.
✓ Branch 2 taken 8701 times.
✗ Branch 3 not taken.
 40497 if (flags & SWS_FULL_CHR_H_INT &&
1292
2/2
✓ Branch 1 taken 3873 times.
✓ Branch 2 taken 4828 times.
 17402 isAnyRGB(dstFormat) &&
1293
2/2
✓ Branch 1 taken 3871 times.
✓ Branch 2 taken 2 times.
 12574 !isPlanarRGB(dstFormat) &&
1294
2/2
✓ Branch 0 taken 3870 times.
✓ Branch 1 taken 1 times.
 3871 dstFormat != AV_PIX_FMT_RGBA64LE &&
1295
2/2
✓ Branch 0 taken 3868 times.
✓ Branch 1 taken 2 times.
 3870 dstFormat != AV_PIX_FMT_RGBA64BE &&
1296
2/2
✓ Branch 0 taken 3867 times.
✓ Branch 1 taken 1 times.
 3868 dstFormat != AV_PIX_FMT_BGRA64LE &&
1297
2/2
✓ Branch 0 taken 3153 times.
✓ Branch 1 taken 714 times.
 3867 dstFormat != AV_PIX_FMT_BGRA64BE &&
1298
2/2
✓ Branch 0 taken 3150 times.
✓ Branch 1 taken 3 times.
 3153 dstFormat != AV_PIX_FMT_RGB48LE &&
1299
2/2
✓ Branch 0 taken 3148 times.
✓ Branch 1 taken 2 times.
 3150 dstFormat != AV_PIX_FMT_RGB48BE &&
1300
2/2
✓ Branch 0 taken 3147 times.
✓ Branch 1 taken 1 times.
 3148 dstFormat != AV_PIX_FMT_BGR48LE &&
1301
2/2
✓ Branch 0 taken 3094 times.
✓ Branch 1 taken 53 times.
 3147 dstFormat != AV_PIX_FMT_BGR48BE &&
1302
2/2
✓ Branch 0 taken 3080 times.
✓ Branch 1 taken 14 times.
 3094 dstFormat != AV_PIX_FMT_RGBA &&
1303
2/2
✓ Branch 0 taken 2540 times.
✓ Branch 1 taken 540 times.
 3080 dstFormat != AV_PIX_FMT_ARGB &&
1304
2/2
✓ Branch 0 taken 2536 times.
✓ Branch 1 taken 4 times.
 2540 dstFormat != AV_PIX_FMT_BGRA &&
1305
2/2
✓ Branch 0 taken 827 times.
✓ Branch 1 taken 1709 times.
 2536 dstFormat != AV_PIX_FMT_ABGR &&
1306
2/2
✓ Branch 0 taken 687 times.
✓ Branch 1 taken 140 times.
 827 dstFormat != AV_PIX_FMT_RGB24 &&
1307
2/2
✓ Branch 0 taken 685 times.
✓ Branch 1 taken 2 times.
 687 dstFormat != AV_PIX_FMT_BGR24 &&
1308
2/2
✓ Branch 0 taken 683 times.
✓ Branch 1 taken 2 times.
 685 dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1309
2/2
✓ Branch 0 taken 679 times.
✓ Branch 1 taken 4 times.
 683 dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1310
2/2
✓ Branch 0 taken 676 times.
✓ Branch 1 taken 3 times.
 679 dstFormat != AV_PIX_FMT_BGR8 &&
1311
2/2
✓ Branch 0 taken 565 times.
✓ Branch 1 taken 111 times.
 676 dstFormat != AV_PIX_FMT_RGB8 &&
1312
2/2
✓ Branch 0 taken 454 times.
✓ Branch 1 taken 111 times.
 565 dstFormat != AV_PIX_FMT_X2RGB10LE &&
1313 dstFormat != AV_PIX_FMT_X2BGR10LE
1314 ) {
1315 454 av_log(c, AV_LOG_WARNING,
1316 "full chroma interpolation for destination format '%s' not yet implemented\n",
1317 av_get_pix_fmt_name(dstFormat));
1318 454 flags &= ~SWS_FULL_CHR_H_INT;
1319 454 sws->flags = flags;
1320 }
1321
4/4
✓ Branch 1 taken 13281 times.
✓ Branch 2 taken 18515 times.
✓ Branch 3 taken 5034 times.
✓ Branch 4 taken 8247 times.
 31796 if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1322 5034 c->chrDstHSubSample = 1;
1323
1324 // drop some chroma lines if the user wants it
1325 31796 c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1326 SWS_SRC_V_CHR_DROP_SHIFT;
1327 31796 c->chrSrcVSubSample += c->vChrDrop;
1328
1329 /* drop every other pixel for chroma calculation unless user
1330 * wants full chroma */
1331
7/8
✓ Branch 1 taken 8333 times.
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✓ Branch 3 taken 7979 times.
✓ Branch 4 taken 354 times.
✓ Branch 5 taken 7979 times.
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✓ Branch 7 taken 7978 times.
✓ Branch 8 taken 1 times.
 31796 if (isAnyRGB(srcFormat) && !(srcW & 1) && !(flags & SWS_FULL_CHR_H_INP) &&
1332
3/4
✓ Branch 0 taken 7977 times.
✓ Branch 1 taken 1 times.
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✗ Branch 3 not taken.
 7978 srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1333
3/4
✓ Branch 0 taken 7977 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 7976 times.
✓ Branch 3 taken 1 times.
 7977 srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1334
4/4
✓ Branch 0 taken 7975 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 7974 times.
✓ Branch 3 taken 1 times.
 7976 srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1335
4/4
✓ Branch 0 taken 7972 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 7861 times.
✓ Branch 3 taken 111 times.
 7974 srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1336
4/4
✓ Branch 0 taken 6844 times.
✓ Branch 1 taken 1017 times.
✓ Branch 2 taken 6843 times.
✓ Branch 3 taken 1 times.
 7861 srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1337
4/4
✓ Branch 0 taken 6841 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 6730 times.
✓ Branch 3 taken 111 times.
 6843 srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1338
4/4
✓ Branch 0 taken 5728 times.
✓ Branch 1 taken 1002 times.
✓ Branch 2 taken 5727 times.
✓ Branch 3 taken 1 times.
 6730 srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1339
4/4
✓ Branch 0 taken 5725 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 5724 times.
✓ Branch 3 taken 1 times.
 5727 srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1340
4/4
✓ Branch 0 taken 5723 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 5722 times.
✓ Branch 3 taken 1 times.
 5724 srcFormat != AV_PIX_FMT_GBRAP14BE && srcFormat != AV_PIX_FMT_GBRAP14LE &&
1341
4/4
✓ Branch 0 taken 5720 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 5569 times.
✓ Branch 3 taken 151 times.
 5722 srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1342
4/4
✓ Branch 0 taken 5241 times.
✓ Branch 1 taken 328 times.
✓ Branch 2 taken 5230 times.
✓ Branch 3 taken 11 times.
 5569 srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1343
4/4
✓ Branch 0 taken 5226 times.
✓ Branch 1 taken 4 times.
✓ Branch 2 taken 5225 times.
✓ Branch 3 taken 1 times.
 5230 srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1344
4/4
✓ Branch 0 taken 5193 times.
✓ Branch 1 taken 32 times.
✓ Branch 2 taken 5192 times.
✓ Branch 3 taken 1 times.
 5225 srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1345
3/4
✓ Branch 0 taken 5191 times.
✓ Branch 1 taken 1 times.
✓ Branch 2 taken 5191 times.
✗ Branch 3 not taken.
 5192 srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1346
3/4
✓ Branch 0 taken 4972 times.
✓ Branch 1 taken 219 times.
✓ Branch 2 taken 4972 times.
✗ Branch 3 not taken.
 5191 srcFormat != AV_PIX_FMT_GBRPF16BE && srcFormat != AV_PIX_FMT_GBRPF16LE &&
1347
2/2
✓ Branch 0 taken 4927 times.
✓ Branch 1 taken 45 times.
 4972 srcFormat != AV_PIX_FMT_GBRAPF16BE && srcFormat != AV_PIX_FMT_GBRAPF16LE &&
1348
2/2
✓ Branch 0 taken 3432 times.
✓ Branch 1 taken 1495 times.
 4927 ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1349
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3432 times.
 3432 (flags & SWS_FAST_BILINEAR)))
1350 1495 c->chrSrcHSubSample = 1;
1351
1352 // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1353 31796 c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1354 31796 c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1355 31796 c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1356 31796 c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1357
1358
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 31796 times.
 31796 if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1359 ✗ goto nomem;
1360
1361 31796 c->srcBpc = desc_src->comp[0].depth;
1362
2/2
✓ Branch 0 taken 635 times.
✓ Branch 1 taken 31161 times.
 31796 if (c->srcBpc < 8)
1363 635 c->srcBpc = 8;
1364 31796 c->dstBpc = desc_dst->comp[0].depth;
1365
2/2
✓ Branch 0 taken 2064 times.
✓ Branch 1 taken 29732 times.
 31796 if (c->dstBpc < 8)
1366 2064 c->dstBpc = 8;
1367
4/4
✓ Branch 1 taken 23463 times.
✓ Branch 2 taken 8333 times.
✓ Branch 3 taken 827 times.
✓ Branch 4 taken 22636 times.
 31796 if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1368 9160 c->srcBpc = 16;
1369
2/2
✓ Branch 0 taken 5377 times.
✓ Branch 1 taken 26419 times.
 31796 if (c->dstBpc == 16)
1370 5377 dst_stride <<= 1;
1371
1372
6/6
✓ Branch 0 taken 2854 times.
✓ Branch 1 taken 28942 times.
✓ Branch 2 taken 2762 times.
✓ Branch 3 taken 92 times.
✓ Branch 4 taken 2497 times.
✓ Branch 5 taken 265 times.
 31796 if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1373
2/2
✓ Branch 0 taken 1562 times.
✓ Branch 1 taken 935 times.
 2497 c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1374
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 &&
1375
1/2
✓ Branch 0 taken 1518 times.
✗ Branch 1 not taken.
 1518 (srcW & 15) == 0;
1376
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
1377
1378
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 165 times.
 165 && (flags & SWS_FAST_BILINEAR)) {
1379 ✗ if (flags & SWS_PRINT_INFO)
1380 ✗ av_log(c, AV_LOG_INFO,
1381 "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1382 }
1383
4/8
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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))
1384 ✗ c->canMMXEXTBeUsed = 0;
1385 } else
1386 29299 c->canMMXEXTBeUsed = 0;
1387
1388 31796 c->chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1389 31796 c->chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1390
1391 /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1392 * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1393 * correct scaling.
1394 * n-2 is the last chrominance sample available.
1395 * This is not perfect, but no one should notice the difference, the more
1396 * correct variant would be like the vertical one, but that would require
1397 * some special code for the first and last pixel */
1398
1/2
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 31796 if (flags & SWS_FAST_BILINEAR) {
1399 ✗ if (c->canMMXEXTBeUsed) {
1400 ✗ c->lumXInc += 20;
1401 ✗ c->chrXInc += 20;
1402 }
1403 // we don't use the x86 asm scaler if MMX is available
1404 ✗ else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1405 ✗ c->lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1406 ✗ c->chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1407 }
1408 }
1409
1410 // hardcoded for now
1411 31796 c->gamma_value = 2.2;
1412 31796 tmpFmt = AV_PIX_FMT_RGBA64LE;
1413
1414
3/8
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 31796 if (!unscaled && sws->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1415 SwsInternal *c2;
1416 ✗ c->cascaded_context[0] = NULL;
1417
1418 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1419 srcW, srcH, tmpFmt, 64);
1420 ✗ if (ret < 0)
1421 ✗ return ret;
1422
1423 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1424 srcW, srcH, tmpFmt,
1425 flags, NULL, NULL,
1426 ✗ sws->scaler_params);
1427 ✗ if (!c->cascaded_context[0]) {
1428 ✗ return AVERROR(ENOMEM);
1429 }
1430
1431 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1432 dstW, dstH, tmpFmt,
1433 flags, srcFilter, dstFilter,
1434 ✗ sws->scaler_params);
1435
1436 ✗ if (!c->cascaded_context[1])
1437 ✗ return AVERROR(ENOMEM);
1438
1439 ✗ c2 = sws_internal(c->cascaded_context[1]);
1440 ✗ c2->is_internal_gamma = 1;
1441 ✗ c2->gamma = alloc_gamma_tbl( c->gamma_value);
1442 ✗ c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1443 ✗ if (!c2->gamma || !c2->inv_gamma)
1444 ✗ return AVERROR(ENOMEM);
1445
1446 // is_internal_flag is set after creating the context
1447 // to properly create the gamma convert FilterDescriptor
1448 // we have to re-initialize it
1449 ✗ ff_free_filters(c2);
1450 ✗ if ((ret = ff_init_filters(c2)) < 0) {
1451 ✗ sws_freeContext(c->cascaded_context[1]);
1452 ✗ c->cascaded_context[1] = NULL;
1453 ✗ return ret;
1454 }
1455
1456 ✗ c->cascaded_context[2] = NULL;
1457 ✗ if (dstFormat != tmpFmt) {
1458 ✗ ret = av_image_alloc(c->cascaded_tmp[1], c->cascaded_tmpStride[1],
1459 dstW, dstH, tmpFmt, 64);
1460 ✗ if (ret < 0)
1461 ✗ return ret;
1462
1463 ✗ c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1464 dstW, dstH, dstFormat,
1465 flags, NULL, NULL,
1466 ✗ sws->scaler_params);
1467 ✗ if (!c->cascaded_context[2])
1468 ✗ return AVERROR(ENOMEM);
1469 }
1470 ✗ return 0;
1471 }
1472
1473
1/2
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 31796 if (isBayer(srcFormat)) {
1474 ✗ if (!unscaled ||
1475 ✗ (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1476 dstFormat != AV_PIX_FMT_RGB48)) {
1477 ✗ enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1478
1479 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1480 srcW, srcH, tmpFormat, 64);
1481 ✗ if (ret < 0)
1482 ✗ return ret;
1483
1484 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1485 srcW, srcH, tmpFormat,
1486 flags, srcFilter, NULL,
1487 ✗ sws->scaler_params);
1488 ✗ if (!c->cascaded_context[0])
1489 ✗ return AVERROR(ENOMEM);
1490
1491 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1492 dstW, dstH, dstFormat,
1493 flags, NULL, dstFilter,
1494 ✗ sws->scaler_params);
1495 ✗ if (!c->cascaded_context[1])
1496 ✗ return AVERROR(ENOMEM);
1497 ✗ return 0;
1498 }
1499 }
1500
1501
6/6
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✓ Branch 4 taken 17 times.
✓ Branch 5 taken 11010 times.
 31796 if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1502
2/2
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✓ Branch 1 taken 17 times.
 4369 for (i = 0; i < 256; ++i){
1503 4352 c->uint2float_lut[i] = (float)i * float_mult;
1504 }
1505 }
1506
1507 // float will be converted to uint16_t
1508
6/6
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 31796 if ((srcFormat == AV_PIX_FMT_GRAYF32BE || srcFormat == AV_PIX_FMT_GRAYF32LE) &&
1509
4/8
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 1 (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1510 dstFormat != AV_PIX_FMT_GRAY8))){
1511 3 c->srcBpc = 16;
1512 }
1513
1514
4/4
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✓ Branch 4 taken 1485 times.
✓ Branch 5 taken 914 times.
 31796 if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1515 1485 enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1516
1517
3/4
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 1485 if (tmpFormat != AV_PIX_FMT_NONE && sws->alpha_blend != SWS_ALPHA_BLEND_NONE) {
1518 ✗ if (!unscaled ||
1519 ✗ dstFormat != tmpFormat ||
1520 ✗ usesHFilter || usesVFilter ||
1521 ✗ sws->src_range != sws->dst_range
1522 ) {
1523 ✗ c->cascaded_mainindex = 1;
1524 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1525 srcW, srcH, tmpFormat, 64);
1526 ✗ if (ret < 0)
1527 ✗ return ret;
1528
1529 ✗ c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
1530 srcW, srcH, tmpFormat,
1531 ✗ flags, sws->scaler_params);
1532 ✗ if (!c->cascaded_context[0])
1533 ✗ return AVERROR(EINVAL);
1534 ✗ c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
1535 ✗ ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1536 ✗ if (ret < 0)
1537 ✗ return ret;
1538
1539 ✗ c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
1540 dstW, dstH, dstFormat,
1541 ✗ flags, sws->scaler_params);
1542 ✗ if (!c->cascaded_context[1])
1543 ✗ return AVERROR(EINVAL);
1544
1545 ✗ c->cascaded_context[1]->src_range = sws->src_range;
1546 ✗ c->cascaded_context[1]->dst_range = sws->dst_range;
1547 ✗ ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1548 ✗ if (ret < 0)
1549 ✗ return ret;
1550
1551 ✗ return 0;
1552 }
1553 }
1554 }
1555
1556 /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1557
4/6
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 31796 if (unscaled && !usesHFilter && !usesVFilter &&
1558
1/4
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✗ Branch 3 not taken.
 30826 sws->alpha_blend != SWS_ALPHA_BLEND_NONE &&
1559 ✗ isALPHA(srcFormat) &&
1560 ✗ (sws->src_range == sws->dst_range || isAnyRGB(dstFormat)) &&
1561 ✗ alphaless_fmt(srcFormat) == dstFormat
1562 ) {
1563 ✗ c->convert_unscaled = ff_sws_alphablendaway;
1564
1565 ✗ if (flags & SWS_PRINT_INFO)
1566 ✗ av_log(c, AV_LOG_INFO,
1567 "using alpha blendaway %s -> %s special converter\n",
1568 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1569 ✗ return 0;
1570 }
1571
1572 /* unscaled special cases */
1573
4/6
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✓ Branch 2 taken 30826 times.
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 31796 if (unscaled && !usesHFilter && !usesVFilter &&
1574
5/6
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✓ Branch 1 taken 27709 times.
✓ Branch 3 taken 2460 times.
✓ Branch 4 taken 657 times.
✓ Branch 5 taken 2460 times.
✗ Branch 6 not taken.
 33286 (sws->src_range == sws->dst_range || isAnyRGB(dstFormat) ||
1575
2/4
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✗ Branch 3 not taken.
✗ Branch 5 not taken.
✓ Branch 6 taken 2460 times.
 4920 isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1576
1577 28366 ff_get_unscaled_swscale(c);
1578
1579
2/2
✓ Branch 0 taken 5516 times.
✓ Branch 1 taken 22850 times.
 28366 if (c->convert_unscaled) {
1580
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5516 times.
 5516 if (flags & SWS_PRINT_INFO)
1581 ✗ av_log(c, AV_LOG_INFO,
1582 "using unscaled %s -> %s special converter\n",
1583 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1584 5516 return 0;
1585 }
1586 }
1587
1588 #if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
1589 #define USE_MMAP 1
1590 #else
1591 #define USE_MMAP 0
1592 #endif
1593
1594 /* precalculate horizontal scaler filter coefficients */
1595 {
1596 #if HAVE_MMXEXT_INLINE
1597 // can't downscale !!!
1598
3/4
✓ Branch 0 taken 792 times.
✓ Branch 1 taken 25488 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 792 times.
 26280 if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
1599 ✗ c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
1600 NULL, NULL, 8);
1601 ✗ c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
1602 NULL, NULL, NULL, 4);
1603
1604 #if USE_MMAP
1605 ✗ c->lumMmxextFilterCode = mmap(NULL, c->lumMmxextFilterCodeSize,
1606 PROT_READ | PROT_WRITE,
1607 MAP_PRIVATE | MAP_ANONYMOUS,
1608 -1, 0);
1609 ✗ c->chrMmxextFilterCode = mmap(NULL, c->chrMmxextFilterCodeSize,
1610 PROT_READ | PROT_WRITE,
1611 MAP_PRIVATE | MAP_ANONYMOUS,
1612 -1, 0);
1613 #elif HAVE_VIRTUALALLOC
1614 c->lumMmxextFilterCode = VirtualAlloc(NULL,
1615 c->lumMmxextFilterCodeSize,
1616 MEM_COMMIT,
1617 PAGE_EXECUTE_READWRITE);
1618 c->chrMmxextFilterCode = VirtualAlloc(NULL,
1619 c->chrMmxextFilterCodeSize,
1620 MEM_COMMIT,
1621 PAGE_EXECUTE_READWRITE);
1622 #else
1623 c->lumMmxextFilterCode = av_malloc(c->lumMmxextFilterCodeSize);
1624 c->chrMmxextFilterCode = av_malloc(c->chrMmxextFilterCodeSize);
1625 #endif
1626
1627 #ifdef MAP_ANONYMOUS
1628 ✗ if (c->lumMmxextFilterCode == MAP_FAILED || c->chrMmxextFilterCode == MAP_FAILED)
1629 #else
1630 if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode)
1631 #endif
1632 {
1633 ✗ av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1634 ✗ return AVERROR(ENOMEM);
1635 }
1636
1637 ✗ if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1638 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1639 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1640 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1641 ✗ goto nomem;
1642
1643 ✗ ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1644 c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1645 ✗ ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1646 c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1647
1648 #if USE_MMAP
1649 ✗ if ( mprotect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1
1650 ✗ || mprotect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1) {
1651 ✗ av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1652 ✗ ret = AVERROR(EINVAL);
1653 ✗ goto fail;
1654 }
1655 #endif
1656 } else
1657 #endif /* HAVE_MMXEXT_INLINE */
1658 {
1659
2/2
✓ Branch 0 taken 1226 times.
✓ Branch 1 taken 25054 times.
 26280 const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1660 PPC_ALTIVEC(cpu_flags) ? 8 :
1661 have_neon(cpu_flags) ? 4 :
1662 have_lsx(cpu_flags) ? 8 :
1663 have_lasx(cpu_flags) ? 8 : 1;
1664
1665
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 26280 times.
 52560 if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1666 &c->hLumFilterSize, c->lumXInc,
1667 srcW, dstW, filterAlign, 1 << 14,
1668 26280 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1669 cpu_flags, srcFilter->lumH, dstFilter->lumH,
1670
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26280 times.
 26280 sws->scaler_params,
1671 get_local_pos(c, 0, 0, 0),
1672 get_local_pos(c, 0, 0, 0))) < 0)
1673 ✗ goto fail;
1674
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 26280 times.
 26280 if (ff_shuffle_filter_coefficients(c, c->hLumFilterPos, c->hLumFilterSize, c->hLumFilter, dstW) < 0)
1675 ✗ goto nomem;
1676
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 26280 times.
 52560 if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1677 &c->hChrFilterSize, c->chrXInc,
1678 c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1679 26280 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1680 cpu_flags, srcFilter->chrH, dstFilter->chrH,
1681
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26280 times.
 26280 sws->scaler_params,
1682 get_local_pos(c, c->chrSrcHSubSample, sws->src_h_chr_pos, 0),
1683 get_local_pos(c, c->chrDstHSubSample, sws->dst_h_chr_pos, 0))) < 0)
1684 ✗ goto fail;
1685
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 26280 times.
 26280 if (ff_shuffle_filter_coefficients(c, c->hChrFilterPos, c->hChrFilterSize, c->hChrFilter, c->chrDstW) < 0)
1686 ✗ goto nomem;
1687 }
1688 } // initialize horizontal stuff
1689
1690 /* precalculate vertical scaler filter coefficients */
1691 {
1692
2/2
✓ Branch 0 taken 1226 times.
✓ Branch 1 taken 25054 times.
 26280 const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1693 PPC_ALTIVEC(cpu_flags) ? 8 :
1694 have_neon(cpu_flags) ? 2 : 1;
1695
1696
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 26280 times.
 52560 if ((ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1697 c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1698 26280 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1699 cpu_flags, srcFilter->lumV, dstFilter->lumV,
1700
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26280 times.
 26280 sws->scaler_params,
1701 get_local_pos(c, 0, 0, 1),
1702 get_local_pos(c, 0, 0, 1))) < 0)
1703 ✗ goto fail;
1704
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 26280 times.
 52560 if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1705 c->chrYInc, c->chrSrcH, c->chrDstH,
1706 filterAlign, (1 << 12),
1707 26280 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1708 cpu_flags, srcFilter->chrV, dstFilter->chrV,
1709
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26280 times.
 26280 sws->scaler_params,
1710 get_local_pos(c, c->chrSrcVSubSample, sws->src_v_chr_pos, 1),
1711 get_local_pos(c, c->chrDstVSubSample, sws->dst_v_chr_pos, 1))) < 0)
1712
1713 ✗ goto fail;
1714
1715 #if HAVE_ALTIVEC
1716 if (!FF_ALLOC_TYPED_ARRAY(c->vYCoeffsBank, c->vLumFilterSize * sws->dst_h) ||
1717 !FF_ALLOC_TYPED_ARRAY(c->vCCoeffsBank, c->vChrFilterSize * c->chrDstH))
1718 goto nomem;
1719
1720 for (i = 0; i < c->vLumFilterSize * sws->dst_h; i++) {
1721 int j;
1722 short *p = (short *)&c->vYCoeffsBank[i];
1723 for (j = 0; j < 8; j++)
1724 p[j] = c->vLumFilter[i];
1725 }
1726
1727 for (i = 0; i < c->vChrFilterSize * c->chrDstH; i++) {
1728 int j;
1729 short *p = (short *)&c->vCCoeffsBank[i];
1730 for (j = 0; j < 8; j++)
1731 p[j] = c->vChrFilter[i];
1732 }
1733 #endif
1734 }
1735
1736
2/2
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✓ Branch 1 taken 26280 times.
 131400 for (i = 0; i < 4; i++)
1737
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 105120 times.
 105120 if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], sws->dst_w + 3))
1738 ✗ goto nomem;
1739
1740
4/4
✓ Branch 1 taken 629 times.
✓ Branch 2 taken 25651 times.
✓ Branch 4 taken 358 times.
✓ Branch 5 taken 271 times.
 26280 c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(sws->src_format) && isALPHA(sws->dst_format)) ? 1 : 0;
1741
1742 // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1743 26280 c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1744 26280 c->uv_offx2 = dst_stride + 16;
1745
1746
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26280 times.
 26280 av_assert0(c->chrDstH <= dstH);
1747
1748
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 26280 times.
 26280 if (flags & SWS_PRINT_INFO) {
1749 ✗ const char *scaler = NULL, *cpucaps;
1750
1751 ✗ for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1752 ✗ if (flags & scale_algorithms[i].flag) {
1753 ✗ scaler = scale_algorithms[i].description;
1754 ✗ break;
1755 }
1756 }
1757 ✗ if (!scaler)
1758 ✗ scaler = "ehh flags invalid?!";
1759 ✗ av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1760 scaler,
1761 av_get_pix_fmt_name(srcFormat),
1762 ✗ dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1763 ✗ dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1764 ✗ dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1765 "dithered " : "",
1766 av_get_pix_fmt_name(dstFormat));
1767
1768 ✗ if (INLINE_MMXEXT(cpu_flags))
1769 ✗ cpucaps = "MMXEXT";
1770 ✗ else if (INLINE_MMX(cpu_flags))
1771 ✗ cpucaps = "MMX";
1772 else if (PPC_ALTIVEC(cpu_flags))
1773 cpucaps = "AltiVec";
1774 else
1775 ✗ cpucaps = "C";
1776
1777 ✗ av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1778
1779 ✗ av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1780 ✗ av_log(c, AV_LOG_DEBUG,
1781 "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1782 sws->src_w, sws->src_h, sws->dst_w, sws->dst_h, c->lumXInc, c->lumYInc);
1783 ✗ av_log(c, AV_LOG_DEBUG,
1784 "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1785 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1786 c->chrXInc, c->chrYInc);
1787 }
1788
1789 26280 ff_sws_init_scale(c);
1790
1791 26280 return ff_init_filters(c);
1792 ✗ nomem:
1793 ✗ ret = AVERROR(ENOMEM);
1794 ✗ fail: // FIXME replace things by appropriate error codes
1795 ✗ if (ret == RETCODE_USE_CASCADE) {
1796 ✗ int tmpW = sqrt(srcW * (int64_t)dstW);
1797 ✗ int tmpH = sqrt(srcH * (int64_t)dstH);
1798 ✗ enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1799
1800 ✗ if (isALPHA(srcFormat))
1801 ✗ tmpFormat = AV_PIX_FMT_YUVA420P;
1802
1803 ✗ if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1804 ✗ return AVERROR(EINVAL);
1805
1806 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1807 tmpW, tmpH, tmpFormat, 64);
1808 ✗ if (ret < 0)
1809 ✗ return ret;
1810
1811 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1812 tmpW, tmpH, tmpFormat,
1813 flags, srcFilter, NULL,
1814 ✗ sws->scaler_params);
1815 ✗ if (!c->cascaded_context[0])
1816 ✗ return AVERROR(ENOMEM);
1817
1818 ✗ c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
1819 dstW, dstH, dstFormat,
1820 flags, NULL, dstFilter,
1821 ✗ sws->scaler_params);
1822 ✗ if (!c->cascaded_context[1])
1823 ✗ return AVERROR(ENOMEM);
1824 ✗ return 0;
1825 }
1826 ✗ return ret;
1827 }
1828
1829 ✗ static int context_init_threaded(SwsContext *sws,
1830 SwsFilter *src_filter, SwsFilter *dst_filter)
1831 {
1832 ✗ SwsInternal *c = sws_internal(sws);
1833 int ret;
1834
1835 ✗ ret = avpriv_slicethread_create(&c->slicethread, (void*) sws,
1836 ff_sws_slice_worker, NULL, sws->threads);
1837 ✗ if (ret == AVERROR(ENOSYS)) {
1838 ✗ sws->threads = 1;
1839 ✗ return 0;
1840 ✗ } else if (ret < 0)
1841 ✗ return ret;
1842
1843 ✗ sws->threads = ret;
1844
1845 ✗ c->slice_ctx = av_calloc(sws->threads, sizeof(*c->slice_ctx));
1846 ✗ c->slice_err = av_calloc(sws->threads, sizeof(*c->slice_err));
1847 ✗ if (!c->slice_ctx || !c->slice_err)
1848 ✗ return AVERROR(ENOMEM);
1849
1850 ✗ for (int i = 0; i < sws->threads; i++) {
1851 SwsContext *slice;
1852 ✗ slice = c->slice_ctx[i] = sws_alloc_context();
1853 ✗ if (!slice)
1854 ✗ return AVERROR(ENOMEM);
1855 ✗ sws_internal(slice)->parent = sws;
1856 ✗ c->nb_slice_ctx++;
1857
1858 ✗ ret = av_opt_copy(slice, sws);
1859 ✗ if (ret < 0)
1860 ✗ return ret;
1861 ✗ slice->threads = 1;
1862
1863 ✗ ret = ff_sws_init_single_context(slice, src_filter, dst_filter);
1864 ✗ if (ret < 0)
1865 ✗ return ret;
1866
1867 ✗ if (slice->dither == SWS_DITHER_ED) {
1868 ✗ av_log(c, AV_LOG_VERBOSE,
1869 "Error-diffusion dither is in use, scaling will be single-threaded.");
1870 ✗ break;
1871 }
1872 }
1873
1874 ✗ return 0;
1875 }
1876
1877 9506 av_cold int sws_init_context(SwsContext *sws, SwsFilter *srcFilter,
1878 SwsFilter *dstFilter)
1879 {
1880 9506 SwsInternal *c = sws_internal(sws);
1881 static AVOnce rgb2rgb_once = AV_ONCE_INIT;
1882 enum AVPixelFormat src_format, dst_format;
1883 int ret;
1884
1885 9506 c->frame_src = av_frame_alloc();
1886 9506 c->frame_dst = av_frame_alloc();
1887
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 9506 if (!c->frame_src || !c->frame_dst)
1888 ✗ return AVERROR(ENOMEM);
1889
1890
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 9506 if (ff_thread_once(&rgb2rgb_once, ff_sws_rgb2rgb_init) != 0)
1891 ✗ return AVERROR_UNKNOWN;
1892
1893 9506 src_format = sws->src_format;
1894 9506 dst_format = sws->dst_format;
1895 9506 sws->src_range |= handle_jpeg(&sws->src_format);
1896 9506 sws->dst_range |= handle_jpeg(&sws->dst_format);
1897
1898
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 9506 if (src_format != sws->src_format || dst_format != sws->dst_format)
1899 265 av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
1900
1901
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 9506 if (sws->threads != 1) {
1902 ✗ ret = context_init_threaded(sws, srcFilter, dstFilter);
1903 ✗ if (ret < 0 || sws->threads > 1)
1904 ✗ return ret;
1905 // threading disabled in this build, init as single-threaded
1906 }
1907
1908 9506 return ff_sws_init_single_context(sws, srcFilter, dstFilter);
1909 }
1910
1911 3143 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
1912 int dstW, int dstH, enum AVPixelFormat dstFormat,
1913 int flags, SwsFilter *srcFilter,
1914 SwsFilter *dstFilter, const double *param)
1915 {
1916 SwsContext *sws;
1917
1918 3143 sws = alloc_set_opts(srcW, srcH, srcFormat,
1919 dstW, dstH, dstFormat,
1920 flags, param);
1921
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 3143 if (!sws)
1922 ✗ return NULL;
1923
1924
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 3143 if (sws_init_context(sws, srcFilter, dstFilter) < 0) {
1925 ✗ sws_freeContext(sws);
1926 ✗ return NULL;
1927 }
1928
1929 3143 return sws;
1930 }
1931
1932 ✗ static int isnan_vec(SwsVector *a)
1933 {
1934 int i;
1935 ✗ for (i=0; i<a->length; i++)
1936 ✗ if (isnan(a->coeff[i]))
1937 ✗ return 1;
1938 ✗ return 0;
1939 }
1940
1941 ✗ static void makenan_vec(SwsVector *a)
1942 {
1943 int i;
1944 ✗ for (i=0; i<a->length; i++)
1945 ✗ a->coeff[i] = NAN;
1946 ✗ }
1947
1948 ✗ SwsVector *sws_allocVec(int length)
1949 {
1950 SwsVector *vec;
1951
1952 ✗ if(length <= 0 || length > INT_MAX/ sizeof(double))
1953 ✗ return NULL;
1954
1955 ✗ vec = av_malloc(sizeof(SwsVector));
1956 ✗ if (!vec)
1957 ✗ return NULL;
1958 ✗ vec->length = length;
1959 ✗ vec->coeff = av_malloc(sizeof(double) * length);
1960 ✗ if (!vec->coeff)
1961 ✗ av_freep(&vec);
1962 ✗ return vec;
1963 }
1964
1965 ✗ SwsVector *sws_getGaussianVec(double variance, double quality)
1966 {
1967 ✗ const int length = (int)(variance * quality + 0.5) | 1;
1968 int i;
1969 ✗ double middle = (length - 1) * 0.5;
1970 SwsVector *vec;
1971
1972 ✗ if(variance < 0 || quality < 0)
1973 ✗ return NULL;
1974
1975 ✗ vec = sws_allocVec(length);
1976
1977 ✗ if (!vec)
1978 ✗ return NULL;
1979
1980 ✗ for (i = 0; i < length; i++) {
1981 ✗ double dist = i - middle;
1982 ✗ vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
1983 ✗ sqrt(2 * variance * M_PI);
1984 }
1985
1986 ✗ sws_normalizeVec(vec, 1.0);
1987
1988 ✗ return vec;
1989 }
1990
1991 /**
1992 * Allocate and return a vector with length coefficients, all
1993 * with the same value c.
1994 */
1995 static
1996 ✗ SwsVector *sws_getConstVec(double c, int length)
1997 {
1998 int i;
1999 ✗ SwsVector *vec = sws_allocVec(length);
2000
2001 ✗ if (!vec)
2002 ✗ return NULL;
2003
2004 ✗ for (i = 0; i < length; i++)
2005 ✗ vec->coeff[i] = c;
2006
2007 ✗ return vec;
2008 }
2009
2010 /**
2011 * Allocate and return a vector with just one coefficient, with
2012 * value 1.0.
2013 */
2014 static
2015 ✗ SwsVector *sws_getIdentityVec(void)
2016 {
2017 ✗ return sws_getConstVec(1.0, 1);
2018 }
2019
2020 ✗ static double sws_dcVec(SwsVector *a)
2021 {
2022 int i;
2023 ✗ double sum = 0;
2024
2025 ✗ for (i = 0; i < a->length; i++)
2026 ✗ sum += a->coeff[i];
2027
2028 ✗ return sum;
2029 }
2030
2031 ✗ void sws_scaleVec(SwsVector *a, double scalar)
2032 {
2033 int i;
2034
2035 ✗ for (i = 0; i < a->length; i++)
2036 ✗ a->coeff[i] *= scalar;
2037 ✗ }
2038
2039 ✗ void sws_normalizeVec(SwsVector *a, double height)
2040 {
2041 ✗ sws_scaleVec(a, height / sws_dcVec(a));
2042 ✗ }
2043
2044 ✗ static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2045 {
2046 ✗ int length = FFMAX(a->length, b->length);
2047 int i;
2048 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2049
2050 ✗ if (!vec)
2051 ✗ return NULL;
2052
2053 ✗ for (i = 0; i < a->length; i++)
2054 ✗ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2055 ✗ for (i = 0; i < b->length; i++)
2056 ✗ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2057
2058 ✗ return vec;
2059 }
2060
2061 /* shift left / or right if "shift" is negative */
2062 ✗ static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2063 {
2064 ✗ int length = a->length + FFABS(shift) * 2;
2065 int i;
2066 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2067
2068 ✗ if (!vec)
2069 ✗ return NULL;
2070
2071 ✗ for (i = 0; i < a->length; i++) {
2072 ✗ vec->coeff[i + (length - 1) / 2 -
2073 ✗ (a->length - 1) / 2 - shift] = a->coeff[i];
2074 }
2075
2076 ✗ return vec;
2077 }
2078
2079 static
2080 ✗ void sws_shiftVec(SwsVector *a, int shift)
2081 {
2082 ✗ SwsVector *shifted = sws_getShiftedVec(a, shift);
2083 ✗ if (!shifted) {
2084 ✗ makenan_vec(a);
2085 ✗ return;
2086 }
2087 ✗ av_free(a->coeff);
2088 ✗ a->coeff = shifted->coeff;
2089 ✗ a->length = shifted->length;
2090 ✗ av_free(shifted);
2091 }
2092
2093 static
2094 ✗ void sws_addVec(SwsVector *a, SwsVector *b)
2095 {
2096 ✗ SwsVector *sum = sws_sumVec(a, b);
2097 ✗ if (!sum) {
2098 ✗ makenan_vec(a);
2099 ✗ return;
2100 }
2101 ✗ av_free(a->coeff);
2102 ✗ a->coeff = sum->coeff;
2103 ✗ a->length = sum->length;
2104 ✗ av_free(sum);
2105 }
2106
2107 /**
2108 * Print with av_log() a textual representation of the vector a
2109 * if log_level <= av_log_level.
2110 */
2111 static
2112 ✗ void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2113 {
2114 int i;
2115 ✗ double max = 0;
2116 ✗ double min = 0;
2117 double range;
2118
2119 ✗ for (i = 0; i < a->length; i++)
2120 ✗ if (a->coeff[i] > max)
2121 ✗ max = a->coeff[i];
2122
2123 ✗ for (i = 0; i < a->length; i++)
2124 ✗ if (a->coeff[i] < min)
2125 ✗ min = a->coeff[i];
2126
2127 ✗ range = max - min;
2128
2129 ✗ for (i = 0; i < a->length; i++) {
2130 ✗ int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2131 ✗ av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2132 ✗ for (; x > 0; x--)
2133 ✗ av_log(log_ctx, log_level, " ");
2134 ✗ av_log(log_ctx, log_level, "|\n");
2135 }
2136 ✗ }
2137
2138 ✗ void sws_freeVec(SwsVector *a)
2139 {
2140 ✗ if (!a)
2141 ✗ return;
2142 ✗ av_freep(&a->coeff);
2143 ✗ a->length = 0;
2144 ✗ av_free(a);
2145 }
2146
2147 ✗ void sws_freeFilter(SwsFilter *filter)
2148 {
2149 ✗ if (!filter)
2150 ✗ return;
2151
2152 ✗ sws_freeVec(filter->lumH);
2153 ✗ sws_freeVec(filter->lumV);
2154 ✗ sws_freeVec(filter->chrH);
2155 ✗ sws_freeVec(filter->chrV);
2156 ✗ av_free(filter);
2157 }
2158
2159 ✗ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2160 float lumaSharpen, float chromaSharpen,
2161 float chromaHShift, float chromaVShift,
2162 int verbose)
2163 {
2164 ✗ SwsFilter *filter = av_malloc(sizeof(SwsFilter));
2165 ✗ if (!filter)
2166 ✗ return NULL;
2167
2168 ✗ if (lumaGBlur != 0.0) {
2169 ✗ filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
2170 ✗ filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
2171 } else {
2172 ✗ filter->lumH = sws_getIdentityVec();
2173 ✗ filter->lumV = sws_getIdentityVec();
2174 }
2175
2176 ✗ if (chromaGBlur != 0.0) {
2177 ✗ filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
2178 ✗ filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2179 } else {
2180 ✗ filter->chrH = sws_getIdentityVec();
2181 ✗ filter->chrV = sws_getIdentityVec();
2182 }
2183
2184 ✗ if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2185 ✗ goto fail;
2186
2187 ✗ if (chromaSharpen != 0.0) {
2188 ✗ SwsVector *id = sws_getIdentityVec();
2189 ✗ if (!id)
2190 ✗ goto fail;
2191 ✗ sws_scaleVec(filter->chrH, -chromaSharpen);
2192 ✗ sws_scaleVec(filter->chrV, -chromaSharpen);
2193 ✗ sws_addVec(filter->chrH, id);
2194 ✗ sws_addVec(filter->chrV, id);
2195 ✗ sws_freeVec(id);
2196 }
2197
2198 ✗ if (lumaSharpen != 0.0) {
2199 ✗ SwsVector *id = sws_getIdentityVec();
2200 ✗ if (!id)
2201 ✗ goto fail;
2202 ✗ sws_scaleVec(filter->lumH, -lumaSharpen);
2203 ✗ sws_scaleVec(filter->lumV, -lumaSharpen);
2204 ✗ sws_addVec(filter->lumH, id);
2205 ✗ sws_addVec(filter->lumV, id);
2206 ✗ sws_freeVec(id);
2207 }
2208
2209 ✗ if (chromaHShift != 0.0)
2210 ✗ sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2211
2212 ✗ if (chromaVShift != 0.0)
2213 ✗ sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2214
2215 ✗ sws_normalizeVec(filter->chrH, 1.0);
2216 ✗ sws_normalizeVec(filter->chrV, 1.0);
2217 ✗ sws_normalizeVec(filter->lumH, 1.0);
2218 ✗ sws_normalizeVec(filter->lumV, 1.0);
2219
2220 ✗ if (isnan_vec(filter->chrH) ||
2221 ✗ isnan_vec(filter->chrV) ||
2222 ✗ isnan_vec(filter->lumH) ||
2223 ✗ isnan_vec(filter->lumV))
2224 ✗ goto fail;
2225
2226 ✗ if (verbose)
2227 ✗ sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2228 ✗ if (verbose)
2229 ✗ sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2230
2231 ✗ return filter;
2232
2233 ✗ fail:
2234 ✗ sws_freeVec(filter->lumH);
2235 ✗ sws_freeVec(filter->lumV);
2236 ✗ sws_freeVec(filter->chrH);
2237 ✗ sws_freeVec(filter->chrV);
2238 ✗ av_freep(&filter);
2239 ✗ return NULL;
2240 }
2241
2242 170605 void sws_freeContext(SwsContext *sws)
2243 {
2244 170605 SwsInternal *c = sws_internal(sws);
2245 int i;
2246
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 170605 if (!c)
2247 127954 return;
2248
2249
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 127953 for (i = 0; i < FF_ARRAY_ELEMS(c->graph); i++)
2250 85302 ff_sws_graph_free(&c->graph[i]);
2251
2252
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 64941 for (i = 0; i < c->nb_slice_ctx; i++)
2253 22290 sws_freeContext(c->slice_ctx[i]);
2254 42651 av_freep(&c->slice_ctx);
2255 42651 av_freep(&c->slice_err);
2256
2257 42651 avpriv_slicethread_free(&c->slicethread);
2258
2259
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 213255 for (i = 0; i < 4; i++)
2260 170604 av_freep(&c->dither_error[i]);
2261
2262 42651 av_frame_free(&c->frame_src);
2263 42651 av_frame_free(&c->frame_dst);
2264
2265 42651 av_freep(&c->src_ranges.ranges);
2266
2267 42651 av_freep(&c->vLumFilter);
2268 42651 av_freep(&c->vChrFilter);
2269 42651 av_freep(&c->hLumFilter);
2270 42651 av_freep(&c->hChrFilter);
2271 #if HAVE_ALTIVEC
2272 av_freep(&c->vYCoeffsBank);
2273 av_freep(&c->vCCoeffsBank);
2274 #endif
2275
2276 42651 av_freep(&c->vLumFilterPos);
2277 42651 av_freep(&c->vChrFilterPos);
2278 42651 av_freep(&c->hLumFilterPos);
2279 42651 av_freep(&c->hChrFilterPos);
2280
2281 #if HAVE_MMX_INLINE
2282 #if USE_MMAP
2283
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 42651 if (c->lumMmxextFilterCode)
2284 ✗ munmap(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2285
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 42651 if (c->chrMmxextFilterCode)
2286 ✗ munmap(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2287 #elif HAVE_VIRTUALALLOC
2288 if (c->lumMmxextFilterCode)
2289 VirtualFree(c->lumMmxextFilterCode, 0, MEM_RELEASE);
2290 if (c->chrMmxextFilterCode)
2291 VirtualFree(c->chrMmxextFilterCode, 0, MEM_RELEASE);
2292 #else
2293 av_free(c->lumMmxextFilterCode);
2294 av_free(c->chrMmxextFilterCode);
2295 #endif
2296 42651 c->lumMmxextFilterCode = NULL;
2297 42651 c->chrMmxextFilterCode = NULL;
2298 #endif /* HAVE_MMX_INLINE */
2299
2300 42651 av_freep(&c->yuvTable);
2301 42651 av_freep(&c->formatConvBuffer);
2302
2303 42651 sws_freeContext(c->cascaded_context[0]);
2304 42651 sws_freeContext(c->cascaded_context[1]);
2305 42651 sws_freeContext(c->cascaded_context[2]);
2306 42651 memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2307 42651 av_freep(&c->cascaded_tmp[0][0]);
2308 42651 av_freep(&c->cascaded_tmp[1][0]);
2309
2310 42651 av_freep(&c->gamma);
2311 42651 av_freep(&c->inv_gamma);
2312 #if CONFIG_SMALL
2313 av_freep(&c->xyzgamma);
2314 #endif
2315
2316 42651 av_freep(&c->rgb0_scratch);
2317 42651 av_freep(&c->xyz_scratch);
2318
2319 42651 ff_free_filters(c);
2320
2321 42651 av_free(c);
2322 }
2323
2324 17023 void sws_free_context(SwsContext **pctx)
2325 {
2326 17023 SwsContext *ctx = *pctx;
2327
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 17023 if (!ctx)
2328 ✗ return;
2329
2330 17023 sws_freeContext(ctx);
2331 17023 *pctx = NULL;
2332 }
2333
2334 ✗ SwsContext *sws_getCachedContext(SwsContext *prev, int srcW,
2335 int srcH, enum AVPixelFormat srcFormat,
2336 int dstW, int dstH,
2337 enum AVPixelFormat dstFormat, int flags,
2338 SwsFilter *srcFilter,
2339 SwsFilter *dstFilter,
2340 const double *param)
2341 {
2342 SwsContext *sws;
2343 static const double default_param[2] = { SWS_PARAM_DEFAULT,
2344 SWS_PARAM_DEFAULT };
2345
2346 ✗ if (!param)
2347 ✗ param = default_param;
2348
2349 ✗ if (prev && (prev->src_w == srcW &&
2350 ✗ prev->src_h == srcH &&
2351 ✗ prev->src_format == srcFormat &&
2352 ✗ prev->dst_w == dstW &&
2353 ✗ prev->dst_h == dstH &&
2354 ✗ prev->dst_format == dstFormat &&
2355 ✗ prev->flags == flags &&
2356 ✗ prev->scaler_params[0] == param[0] &&
2357 ✗ prev->scaler_params[1] == param[1])) {
2358 ✗ return prev;
2359 }
2360
2361 ✗ if (!(sws = sws_alloc_context())) {
2362 ✗ sws_free_context(&prev);
2363 ✗ return NULL;
2364 }
2365
2366 ✗ if (prev) {
2367 ✗ av_opt_copy(sws, prev);
2368 ✗ sws_free_context(&prev);
2369 }
2370
2371 ✗ sws->src_w = srcW;
2372 ✗ sws->src_h = srcH;
2373 ✗ sws->src_format = srcFormat;
2374 ✗ sws->dst_w = dstW;
2375 ✗ sws->dst_h = dstH;
2376 ✗ sws->dst_format = dstFormat;
2377 ✗ sws->flags = flags;
2378 ✗ sws->scaler_params[0] = param[0];
2379 ✗ sws->scaler_params[1] = param[1];
2380
2381 ✗ if (sws_init_context(sws, srcFilter, dstFilter) < 0)
2382 ✗ sws_free_context(&sws);
2383
2384 ✗ return sws;
2385 }
2386
2387 ✗ int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
2388 {
2389 Range *tmp;
2390 unsigned int idx;
2391
2392 /* find the first existing range after the new one */
2393 ✗ for (idx = 0; idx < rl->nb_ranges; idx++)
2394 ✗ if (rl->ranges[idx].start > start)
2395 ✗ break;
2396
2397 /* check for overlap */
2398 ✗ if (idx > 0) {
2399 ✗ Range *prev = &rl->ranges[idx - 1];
2400 ✗ if (prev->start + prev->len > start)
2401 ✗ return AVERROR(EINVAL);
2402 }
2403 ✗ if (idx < rl->nb_ranges) {
2404 ✗ Range *next = &rl->ranges[idx];
2405 ✗ if (start + len > next->start)
2406 ✗ return AVERROR(EINVAL);
2407 }
2408
2409 ✗ tmp = av_fast_realloc(rl->ranges, &rl->ranges_allocated,
2410 ✗ (rl->nb_ranges + 1) * sizeof(*rl->ranges));
2411 ✗ if (!tmp)
2412 ✗ return AVERROR(ENOMEM);
2413 ✗ rl->ranges = tmp;
2414
2415 ✗ memmove(rl->ranges + idx + 1, rl->ranges + idx,
2416 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2417 ✗ rl->ranges[idx].start = start;
2418 ✗ rl->ranges[idx].len = len;
2419 ✗ rl->nb_ranges++;
2420
2421 /* merge ranges */
2422 ✗ if (idx > 0) {
2423 ✗ Range *prev = &rl->ranges[idx - 1];
2424 ✗ Range *cur = &rl->ranges[idx];
2425 ✗ if (prev->start + prev->len == cur->start) {
2426 ✗ prev->len += cur->len;
2427 ✗ memmove(rl->ranges + idx - 1, rl->ranges + idx,
2428 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2429 ✗ rl->nb_ranges--;
2430 ✗ idx--;
2431 }
2432 }
2433 ✗ if (idx < rl->nb_ranges - 1) {
2434 ✗ Range *cur = &rl->ranges[idx];
2435 ✗ Range *next = &rl->ranges[idx + 1];
2436 ✗ if (cur->start + cur->len == next->start) {
2437 ✗ cur->len += next->len;
2438 ✗ memmove(rl->ranges + idx, rl->ranges + idx + 1,
2439 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx - 1));
2440 ✗ rl->nb_ranges--;
2441 }
2442 }
2443
2444 ✗ return 0;
2445 }
2446