FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/utils.c
Date: 2025-12-07 16:13:08
Exec Total Coverage
Lines: 767 1334 57.5%
Functions: 22 43 51.2%
Branches: 660 1199 55.0%
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 3153 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 3153 SwsContext *sws = sws_alloc_context();
74
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 3153 if (!sws)
75 ✗ return NULL;
76
77 3153 sws->flags = flags;
78 3153 sws->src_w = srcW;
79 3153 sws->src_h = srcH;
80 3153 sws->dst_w = dstW;
81 3153 sws->dst_h = dstH;
82 3153 sws->src_format = srcFormat;
83 3153 sws->dst_format = dstFormat;
84
85
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 3153 if (param) {
86 2 sws->scaler_params[0] = param[0];
87 2 sws->scaler_params[1] = param[1];
88 }
89
90 3153 return sws;
91 }
92
93 117688 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 117688 int cpu_flags = av_get_cpu_flags();
100
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 117688 if (!filter)
101 ✗ return 0;
102
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 117688 if (EXTERNAL_AVX2_FAST(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) {
103
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 266 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 117688 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 467008 static av_cold int get_local_pos(SwsInternal *s, int chr_subsample, int pos, int dir)
164 {
165
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 467008 if (pos == -1 || pos <= -513) {
166 208531 pos = (128 << chr_subsample) - 128;
167 }
168 467008 pos += 128; // relative to ideal left edge
169 467008 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 233504 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 233504 int64_t *filter = NULL;
204 233504 int64_t *filter2 = NULL;
205 233504 const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
206 233504 int ret = -1;
207
208 233504 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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 233504 if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
212 ✗ goto nomem;
213
214
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 442605 if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
215 int i;
216 209101 filterSize = 1;
217
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 209101 if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
218 ✗ goto nomem;
219
220
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 42883408 for (i = 0; i < dstW; i++) {
221 42674307 filter[i * filterSize] = fone;
222 42674307 (*filterPos)[i] = i;
223 }
224
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 24403 } 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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 24102 } else if ((xInc <= (1 << 16) && (flags & SWS_AREA)) ||
240
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 24102 (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 24014 int sizeFactor = -1;
266
267
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 48644 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
268
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 48644 if (flags & scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
269 24014 sizeFactor = scale_algorithms[i].size_factor;
270 24014 break;
271 }
272 }
273
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 24014 if (flags & SWS_LANCZOS)
274 ✗ sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
275
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 24014 av_assert0(sizeFactor > 0);
276
277
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 24014 if (xInc <= 1 << 16)
278 13417 filterSize = 1 + sizeFactor; // upscale
279 else
280 10597 filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
281
282
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 24014 filterSize = FFMIN(filterSize, srcW - 2);
283 24014 filterSize = FFMAX(filterSize, 1);
284
285
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 24014 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
286 ✗ goto nomem;
287 24014 xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
288
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 8109082 for (i = 0; i < dstW; i++) {
289 8085068 int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
290 int j;
291 8085068 (*filterPos)[i] = xx;
292
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 55156436 for (j = 0; j < filterSize; j++) {
293 47071368 int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
294 double floatd;
295 int64_t coeff;
296
297
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 47071368 if (xInc > 1 << 16)
298 14118041 d = d * dstW / srcW;
299 47071368 floatd = d * (1.0 / (1 << 30));
300
301
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 47071368 if (flags & SWS_BICUBIC) {
302
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 46377429 int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
303
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 46377429 int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
304
305
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 46377429 if (d >= 1LL << 31) {
306 8170361 coeff = 0.0;
307 } else {
308 38207068 int64_t dd = (d * d) >> 30;
309 38207068 int64_t ddd = (dd * d) >> 30;
310
311
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 38207068 if (d < 1LL << 30)
312 19116620 coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
313 19116620 (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
314 19116620 (6 * (1 << 24) - 2 * B) * (1 << 30);
315 else
316 19090448 coeff = (-B - 6 * C) * ddd +
317 19090448 (6 * B + 30 * C) * dd +
318 19090448 (-12 * B - 48 * C) * d +
319 19090448 (8 * B + 24 * C) * (1 << 30);
320 }
321 46377429 coeff /= (1LL<<54)/fone;
322
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 693939 } 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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 693939 } 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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 405012 } 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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 405012 } else if (flags & SWS_SINC) {
348 ✗ coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
349
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 405012 } 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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 405012 } else if (flags & SWS_BILINEAR) {
356 405012 coeff = (1 << 30) - d;
357
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 405012 if (coeff < 0)
358 49460 coeff = 0;
359 405012 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 47071368 filter[i * filterSize + j] = coeff;
368 47071368 xx++;
369 }
370 8085068 xDstInSrc += 2LL * xInc;
371 }
372 }
373
374 /* apply src & dst Filter to filter -> filter2
375 * av_free(filter);
376 */
377
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 233504 av_assert0(filterSize > 0);
378 233504 filter2Size = filterSize;
379
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 233504 if (srcFilter)
380 ✗ filter2Size += srcFilter->length - 1;
381
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 233504 if (dstFilter)
382 ✗ filter2Size += dstFilter->length - 1;
383
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 233504 av_assert0(filter2Size > 0);
384
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 233504 if (!FF_ALLOCZ_TYPED_ARRAY(filter2, dstW * filter2Size))
385 ✗ goto nomem;
386
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 51237206 for (i = 0; i < dstW; i++) {
387 int j, k;
388
389
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 51003702 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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 141150940 for (j = 0; j < filterSize; j++)
397 90147238 filter2[i * filter2Size + j] = filter[i * filterSize + j];
398 }
399 // FIXME dstFilter
400
401 51003702 (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
402 }
403 233504 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 233504 minFilterSize = 0;
408
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 51237206 for (i = dstW - 1; i >= 0; i--) {
409 51003702 int min = filter2Size;
410 int j;
411 51003702 int64_t cutOff = 0.0;
412
413 /* get rid of near zero elements on the left by shifting left */
414
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 54473957 for (j = 0; j < filter2Size; j++) {
415 int k;
416 54473957 cutOff += FFABS(filter2[i * filter2Size]);
417
418
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 54473957 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
419 51000881 break;
420
421 /* preserve monotonicity because the core can't handle the
422 * filter otherwise */
423
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 3473076 if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
424 2821 break;
425
426 // move filter coefficients left
427
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 18232428 for (k = 1; k < filter2Size; k++)
428 14762173 filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
429 3470255 filter2[i * filter2Size + k - 1] = 0;
430 3470255 (*filterPos)[i]++;
431 }
432
433 51003702 cutOff = 0;
434 /* count near zeros on the right */
435
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 59298490 for (j = filter2Size - 1; j > 0; j--) {
436 16536146 cutOff += FFABS(filter2[i * filter2Size + j]);
437
438
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 16536146 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
439 8241358 break;
440 8294788 min--;
441 }
442
443
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 51003702 if (min > minFilterSize)
444 234212 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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 233504 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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 130244 if (minFilterSize == 1 && filterAlign == 2)
462 63953 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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 233504 av_assert0(minFilterSize > 0);
475 233504 filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
476
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 233504 av_assert0(filterSize > 0);
477 233504 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
478
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 233504 if (!filter)
479 ✗ goto nomem;
480
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 233504 if (filterSize >= MAX_FILTER_SIZE * 16 /
481
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 233504 ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
482 ✗ ret = RETCODE_USE_CASCADE;
483 ✗ goto fail;
484 }
485 233504 *outFilterSize = filterSize;
486
487
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 233504 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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 51237206 for (i = 0; i < dstW; i++) {
493 int j;
494
495
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 160665109 for (j = 0; j < filterSize; j++) {
496
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 109661407 if (j >= filter2Size)
497 27663330 filter[i * filterSize + j] = 0;
498 else
499 81998077 filter[i * filterSize + j] = filter2[i * filter2Size + j];
500
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 109661407 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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 51237206 for (i = 0; i < dstW; i++) {
509 int j;
510
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 51003702 if ((*filterPos)[i] < 0) {
511 // move filter coefficients left to compensate for filterPos
512
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 299645 for (j = 1; j < filterSize; j++) {
513 248812 int left = FFMAX(j + (*filterPos)[i], 0);
514 248812 filter[i * filterSize + left] += filter[i * filterSize + j];
515 248812 filter[i * filterSize + j] = 0;
516 }
517 50833 (*filterPos)[i]= 0;
518 }
519
520
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 51003702 if ((*filterPos)[i] + filterSize > srcW) {
521 257716 int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
522 257716 int64_t acc = 0;
523
524
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 1387281 for (j = filterSize - 1; j >= 0; j--) {
525
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 1129565 if ((*filterPos)[i] + j >= srcW) {
526 489509 acc += filter[i * filterSize + j];
527 489509 filter[i * filterSize + j] = 0;
528 }
529 }
530
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 1387281 for (j = filterSize - 1; j >= 0; j--) {
531
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 1129565 if (j < shift) {
532 489509 filter[i * filterSize + j] = 0;
533 } else {
534 640056 filter[i * filterSize + j] = filter[i * filterSize + j - shift];
535 }
536 }
537
538 257716 (*filterPos)[i]-= shift;
539 257716 filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
540 }
541
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 51003702 av_assert0((*filterPos)[i] >= 0);
542
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 51003702 av_assert0((*filterPos)[i] < srcW);
543
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 51003702 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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 233504 if (!FF_ALLOCZ_TYPED_ARRAY(*outFilter, *outFilterSize * (dstW + 3)))
553 ✗ goto nomem;
554
555 /* normalize & store in outFilter */
556
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 51237206 for (i = 0; i < dstW; i++) {
557 int j;
558 51003702 int64_t error = 0;
559 51003702 int64_t sum = 0;
560
561
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 160665109 for (j = 0; j < filterSize; j++) {
562 109661407 sum += filter[i * filterSize + j];
563 }
564 51003702 sum = (sum + one / 2) / one;
565
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 51003702 if (!sum) {
566 ✗ av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
567 ✗ sum = 1;
568 }
569
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 160665109 for (j = 0; j < *outFilterSize; j++) {
570 109661407 int64_t v = filter[i * filterSize + j] + error;
571
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 109661407 int intV = ROUNDED_DIV(v, sum);
572 109661407 (*outFilter)[i * (*outFilterSize) + j] = intV;
573 109661407 error = v - intV * sum;
574 }
575 }
576
577 233504 (*filterPos)[dstW + 0] =
578 233504 (*filterPos)[dstW + 1] =
579 233504 (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
580 * read over the end */
581
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 782811 for (i = 0; i < *outFilterSize; i++) {
582 549307 int k = (dstW - 1) * (*outFilterSize) + i;
583 549307 (*outFilter)[k + 1 * (*outFilterSize)] =
584 549307 (*outFilter)[k + 2 * (*outFilterSize)] =
585 549307 (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
586 }
587
588 233504 ret = 0;
589 233504 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 233504 av_free(filter);
597 233504 av_free(filter2);
598 233504 return ret;
599 }
600
601 42573 static void fill_rgb2yuv_table(SwsInternal *c, const int table[4], int dstRange)
602 {
603 int64_t W, V, Z, Cy, Cu, Cv;
604 42573 int64_t vr = table[0];
605 42573 int64_t ub = table[1];
606 42573 int64_t ug = -table[2];
607 42573 int64_t vg = -table[3];
608 42573 int64_t ONE = 65536;
609 42573 int64_t cy = ONE;
610 42573 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 42573 dstRange = 0; //FIXME range = 1 is handled elsewhere
651
652
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 42573 if (!dstRange) {
653 42573 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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 42573 W = ROUNDED_DIV(ONE*ONE*ug, ub);
661
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 42573 V = ROUNDED_DIV(ONE*ONE*vg, vr);
662 42573 Z = ONE*ONE-W-V;
663
664
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 42573 Cy = ROUNDED_DIV(cy*Z, ONE);
665
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 42573 Cu = ROUNDED_DIV(ub*Z, ONE);
666
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 42573 Cv = ROUNDED_DIV(vr*Z, ONE);
667
668
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 42573 c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
669 42573 c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
670
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 42573 c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
671
672
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 42573 c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
673 42573 c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
674
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 42573 c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
675
676
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 42573 c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
677 42573 c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
678
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 42573 c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
679
680
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 42573 if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
681 42573 c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
682 42573 c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
683 42573 c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
684 42573 c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
685 42573 c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
686 42573 c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
687 42573 c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
688 42573 c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
689 42573 c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
690 }
691
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 11963013 for(i=0; i<FF_ARRAY_ELEMS(map); i++)
692
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 11920440 AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
693 42573 }
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 39 static av_cold void init_xyz_tables(void)
702 #endif
703 {
704 39 double xyzgamma = XYZ_GAMMA;
705 39 double rgbgamma = 1.0 / RGB_GAMMA;
706 39 double xyzgammainv = 1.0 / XYZ_GAMMA;
707 39 double rgbgammainv = RGB_GAMMA;
708
709 /* set input gamma vectors */
710
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 159783 for (int i = 0; i < 4096; i++) {
711 159744 xyzgamma_tab[i] = lrint(pow(i / 4095.0, xyzgamma) * 65535.0);
712 159744 rgbgammainv_tab[i] = lrint(pow(i / 4095.0, rgbgammainv) * 65535.0);
713 }
714
715 /* set output gamma vectors */
716
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 2555943 for (int i = 0; i < 65536; i++) {
717 2555904 rgbgamma_tab[i] = lrint(pow(i / 65535.0, rgbgamma) * 4095.0);
718 2555904 xyzgammainv_tab[i] = lrint(pow(i / 65535.0, xyzgammainv) * 4095.0);
719 }
720 39 }
721
722 3523 av_cold int ff_sws_fill_xyztables(SwsInternal *c)
723 {
724 static const int16_t xyz2rgb_matrix[3][3] = {
725 {13270, -6295, -2041},
726 {-3969, 7682, 170},
727 { 228, -835, 4329} };
728 static const int16_t rgb2xyz_matrix[3][3] = {
729 {1689, 1464, 739},
730 { 871, 2929, 296},
731 { 79, 488, 3891} };
732
733
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 3523 if (c->xyz2rgb.gamma.in)
734 2168 return 0;
735
736 1355 memcpy(c->xyz2rgb.mat, xyz2rgb_matrix, sizeof(c->xyz2rgb.mat));
737 1355 memcpy(c->rgb2xyz.mat, rgb2xyz_matrix, sizeof(c->rgb2xyz.mat));
738
739 #if CONFIG_SMALL
740 c->xyz2rgb.gamma.in = av_malloc(sizeof(uint16_t) * 2 * (4096 + 65536));
741 if (!c->xyz2rgb.gamma.in)
742 return AVERROR(ENOMEM);
743 c->rgb2xyz.gamma.in = c->xyz2rgb.gamma.in + 4096;
744 c->xyz2rgb.gamma.out = c->rgb2xyz.gamma.in + 4096;
745 c->rgb2xyz.gamma.out = c->xyz2rgb.gamma.out + 65536;
746 init_xyz_tables(c->xyz2rgb.gamma.in, c->rgb2xyz.gamma.out,
747 c->xyz2rgb.gamma.out, c->rgb2xyz.gamma.in);
748 #else
749 1355 c->xyz2rgb.gamma.in = xyzgamma_tab;
750 1355 c->xyz2rgb.gamma.out = rgbgamma_tab;
751 1355 c->rgb2xyz.gamma.in = rgbgammainv_tab;
752 1355 c->rgb2xyz.gamma.out = xyzgammainv_tab;
753
754 static AVOnce xyz_init_static_once = AV_ONCE_INIT;
755 1355 ff_thread_once(&xyz_init_static_once, init_xyz_tables);
756 #endif
757 1355 return 0;
758 }
759
760 92424 static int handle_jpeg(enum AVPixelFormat *format)
761 {
762
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 92424 switch (*format) {
763 98 case AV_PIX_FMT_YUVJ420P:
764 98 *format = AV_PIX_FMT_YUV420P;
765 98 return 1;
766 16 case AV_PIX_FMT_YUVJ411P:
767 16 *format = AV_PIX_FMT_YUV411P;
768 16 return 1;
769 53 case AV_PIX_FMT_YUVJ422P:
770 53 *format = AV_PIX_FMT_YUV422P;
771 53 return 1;
772 473 case AV_PIX_FMT_YUVJ444P:
773 473 *format = AV_PIX_FMT_YUV444P;
774 473 return 1;
775 44 case AV_PIX_FMT_YUVJ440P:
776 44 *format = AV_PIX_FMT_YUV440P;
777 44 return 1;
778 6171 case AV_PIX_FMT_GRAY8:
779 case AV_PIX_FMT_YA8:
780 case AV_PIX_FMT_GRAY9LE:
781 case AV_PIX_FMT_GRAY9BE:
782 case AV_PIX_FMT_GRAY10LE:
783 case AV_PIX_FMT_GRAY10BE:
784 case AV_PIX_FMT_GRAY12LE:
785 case AV_PIX_FMT_GRAY12BE:
786 case AV_PIX_FMT_GRAY14LE:
787 case AV_PIX_FMT_GRAY14BE:
788 case AV_PIX_FMT_GRAY16LE:
789 case AV_PIX_FMT_GRAY16BE:
790 case AV_PIX_FMT_YA16BE:
791 case AV_PIX_FMT_YA16LE:
792 6171 return 1;
793 85569 default:
794 85569 return 0;
795 }
796 }
797
798 374856 static int handle_0alpha(enum AVPixelFormat *format)
799 {
800
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 374856 switch (*format) {
801 430 case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
802 462 case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
803 430 case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
804 430 case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
805 373104 default: return 0;
806 }
807 }
808
809 374856 static int handle_xyz(enum AVPixelFormat *format)
810 {
811
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 374856 switch (*format) {
812 663 case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
813 687 case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
814 373506 default: return 0;
815 }
816 }
817
818 187428 static int handle_formats(SwsContext *sws)
819 {
820 187428 SwsInternal *c = sws_internal(sws);
821 187428 c->src0Alpha |= handle_0alpha(&sws->src_format);
822 187428 c->dst0Alpha |= handle_0alpha(&sws->dst_format);
823 187428 c->srcXYZ |= handle_xyz(&sws->src_format);
824 187428 c->dstXYZ |= handle_xyz(&sws->dst_format);
825
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 187428 if (c->srcXYZ || c->dstXYZ)
826 3510 return ff_sws_fill_xyztables(c);
827 else
828 183918 return 0;
829 }
830
831 287780 static int range_override_needed(enum AVPixelFormat format)
832 {
833
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 287780 return !isYUV(format) && !isGray(format);
834 }
835
836 118134 int sws_setColorspaceDetails(SwsContext *sws, const int inv_table[4],
837 int srcRange, const int table[4], int dstRange,
838 int brightness, int contrast, int saturation)
839 {
840 118134 SwsInternal *c = sws_internal(sws);
841 const AVPixFmtDescriptor *desc_dst;
842 const AVPixFmtDescriptor *desc_src;
843 118134 int ret, need_reinit = 0;
844
845
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 118134 if (c->nb_slice_ctx) {
846 ✗ int parent_ret = 0;
847 ✗ for (int i = 0; i < c->nb_slice_ctx; i++) {
848 ✗ int ret = sws_setColorspaceDetails(c->slice_ctx[i], inv_table,
849 srcRange, table, dstRange,
850 brightness, contrast, saturation);
851 ✗ if (ret < 0)
852 ✗ parent_ret = ret;
853 }
854
855 ✗ return parent_ret;
856 }
857
858 118134 ret = handle_formats(sws);
859
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 118134 if (ret < 0)
860 ✗ return ret;
861 118134 desc_dst = av_pix_fmt_desc_get(sws->dst_format);
862 118134 desc_src = av_pix_fmt_desc_get(sws->src_format);
863
864
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 118134 if(range_override_needed(sws->dst_format))
865 34871 dstRange = 0;
866
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 118134 if(range_override_needed(sws->src_format))
867 47024 srcRange = 0;
868
869
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 118134 if (sws->src_range != srcRange ||
870
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 107779 sws->dst_range != dstRange ||
871
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 105428 c->brightness != brightness ||
872
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 105428 c->contrast != contrast ||
873
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 48840 c->saturation != saturation ||
874
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 48840 memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
875
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 48698 memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
876 )
877 69436 need_reinit = 1;
878
879 118134 memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
880 118134 memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
881
882
883
884 118134 c->brightness = brightness;
885 118134 c->contrast = contrast;
886 118134 c->saturation = saturation;
887 118134 sws->src_range = srcRange;
888 118134 sws->dst_range = dstRange;
889
890
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 118134 if (need_reinit)
891 69436 ff_sws_init_range_convert(c);
892
893 118134 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
894 118134 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
895
896
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 118134 if (c->cascaded_context[c->cascaded_mainindex])
897 ✗ return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
898
899
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 118134 if (!need_reinit)
900 48698 return 0;
901
902
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 69436 if ((isYUV(sws->dst_format) || isGray(sws->dst_format)) && (isYUV(sws->src_format) || isGray(sws->src_format))) {
903
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 26863 if (!c->cascaded_context[0] &&
904
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 26863 memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
905
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 1 sws->src_w && sws->src_h && sws->dst_w && sws->dst_h) {
906 enum AVPixelFormat tmp_format;
907 int tmp_width, tmp_height;
908 1 int srcW = sws->src_w;
909 1 int srcH = sws->src_h;
910 1 int dstW = sws->dst_w;
911 1 int dstH = sws->dst_h;
912 int ret;
913 1 av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
914
915
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 1 if (isNBPS(sws->dst_format) || is16BPS(sws->dst_format)) {
916 ✗ if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
917 ✗ tmp_format = AV_PIX_FMT_BGRA64;
918 } else {
919 ✗ tmp_format = AV_PIX_FMT_BGR48;
920 }
921 } else {
922
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 1 if (isALPHA(sws->src_format) && isALPHA(sws->dst_format)) {
923 ✗ tmp_format = AV_PIX_FMT_BGRA;
924 } else {
925 1 tmp_format = AV_PIX_FMT_BGR24;
926 }
927 }
928
929
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 1 if (srcW*srcH > dstW*dstH) {
930 ✗ tmp_width = dstW;
931 ✗ tmp_height = dstH;
932 } else {
933 1 tmp_width = srcW;
934 1 tmp_height = srcH;
935 }
936
937 1 ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
938 tmp_width, tmp_height, tmp_format, 64);
939
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 1 if (ret < 0)
940 ✗ return ret;
941
942 2 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, sws->src_format,
943 tmp_width, tmp_height, tmp_format,
944 1 sws->flags, sws->scaler_params);
945
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 1 if (!c->cascaded_context[0])
946 ✗ return -1;
947
948 1 c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
949 1 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
950
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 1 if (ret < 0)
951 ✗ return ret;
952 //we set both src and dst depending on that the RGB side will be ignored
953 1 sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
954 srcRange, table, dstRange,
955 brightness, contrast, saturation);
956
957 2 c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
958 1 dstW, dstH, sws->dst_format,
959 1 sws->flags, sws->scaler_params);
960
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 1 if (!c->cascaded_context[1])
961 ✗ return -1;
962 1 c->cascaded_context[1]->src_range = srcRange;
963 1 c->cascaded_context[1]->dst_range = dstRange;
964 1 ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
965
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 1 if (ret < 0)
966 ✗ return ret;
967 1 sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
968 srcRange, table, dstRange,
969 0, 1 << 16, 1 << 16);
970 1 return 0;
971 }
972 //We do not support this combination currently, we need to cascade more contexts to compensate
973
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 26862 if (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
974 ✗ return -1; //AVERROR_PATCHWELCOME;
975 26862 return 0;
976 }
977
978
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 42573 if (!isYUV(sws->dst_format) && !isGray(sws->dst_format)) {
979 23379 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
980 contrast, saturation);
981 // FIXME factorize
982
983 #if ARCH_PPC
984 ff_yuv2rgb_init_tables_ppc(c, inv_table, brightness,
985 contrast, saturation);
986 #endif
987 }
988
989 42573 fill_rgb2yuv_table(c, table, dstRange);
990
991 42573 return 0;
992 }
993
994 25756 int sws_getColorspaceDetails(SwsContext *sws, int **inv_table,
995 int *srcRange, int **table, int *dstRange,
996 int *brightness, int *contrast, int *saturation)
997 {
998 25756 SwsInternal *c = sws_internal(sws);
999
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 25756 if (!c)
1000 ✗ return -1;
1001
1002
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 25756 if (c->nb_slice_ctx) {
1003 ✗ return sws_getColorspaceDetails(c->slice_ctx[0], inv_table, srcRange,
1004 table, dstRange, brightness, contrast,
1005 saturation);
1006 }
1007
1008 25756 *inv_table = c->srcColorspaceTable;
1009 25756 *table = c->dstColorspaceTable;
1010
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 25756 *srcRange = range_override_needed(sws->src_format) ? 1 : sws->src_range;
1011
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 25756 *dstRange = range_override_needed(sws->dst_format) ? 1 : sws->dst_range;
1012 25756 *brightness = c->brightness;
1013 25756 *contrast = c->contrast;
1014 25756 *saturation = c->saturation;
1015
1016 25756 return 0;
1017 }
1018
1019 86936 SwsContext *sws_alloc_context(void)
1020 {
1021 86936 SwsInternal *c = (SwsInternal *) av_mallocz(sizeof(SwsInternal));
1022
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 86936 if (!c)
1023 ✗ return NULL;
1024
1025 86936 c->opts.av_class = &ff_sws_context_class;
1026 86936 av_opt_set_defaults(c);
1027 86936 atomic_init(&c->stride_unaligned_warned, 0);
1028 86936 atomic_init(&c->data_unaligned_warned, 0);
1029
1030 86936 return &c->opts;
1031 }
1032
1033 ✗ static uint16_t * alloc_gamma_tbl(double e)
1034 {
1035 ✗ int i = 0;
1036 uint16_t * tbl;
1037 ✗ tbl = (uint16_t*)av_malloc(sizeof(uint16_t) * 1 << 16);
1038 ✗ if (!tbl)
1039 ✗ return NULL;
1040
1041 ✗ for (i = 0; i < 65536; ++i) {
1042 ✗ tbl[i] = pow(i / 65535.0, e) * 65535.0;
1043 }
1044 ✗ return tbl;
1045 }
1046
1047 5575 static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1048 {
1049
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 5575 switch(fmt) {
1050 212 case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1051 212 case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1052 202 case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1053 420 case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1054 120 case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1055
1056 364 case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1057 3 case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1058 190 case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1059
1060 151 case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1061
1062 101 case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1063 100 case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1064
1065 101 case AV_PIX_FMT_GBRAP12LE: return AV_PIX_FMT_GBRP12;
1066 100 case AV_PIX_FMT_GBRAP12BE: return AV_PIX_FMT_GBRP12;
1067
1068 100 case AV_PIX_FMT_GBRAP14LE: return AV_PIX_FMT_GBRP14;
1069 100 case AV_PIX_FMT_GBRAP14BE: return AV_PIX_FMT_GBRP14;
1070
1071 101 case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1072 110 case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1073
1074 101 case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1075 110 case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1076 101 case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1077 100 case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1078
1079 120 case AV_PIX_FMT_YA16BE: return AV_PIX_FMT_GRAY16;
1080 100 case AV_PIX_FMT_YA16LE: return AV_PIX_FMT_GRAY16;
1081
1082 ✗ case AV_PIX_FMT_YUVA420P9BE: return AV_PIX_FMT_YUV420P9;
1083 ✗ case AV_PIX_FMT_YUVA422P9BE: return AV_PIX_FMT_YUV422P9;
1084 100 case AV_PIX_FMT_YUVA444P9BE: return AV_PIX_FMT_YUV444P9;
1085 ✗ case AV_PIX_FMT_YUVA420P9LE: return AV_PIX_FMT_YUV420P9;
1086 ✗ case AV_PIX_FMT_YUVA422P9LE: return AV_PIX_FMT_YUV422P9;
1087 100 case AV_PIX_FMT_YUVA444P9LE: return AV_PIX_FMT_YUV444P9;
1088 ✗ case AV_PIX_FMT_YUVA420P10BE: return AV_PIX_FMT_YUV420P10;
1089 ✗ case AV_PIX_FMT_YUVA422P10BE: return AV_PIX_FMT_YUV422P10;
1090 100 case AV_PIX_FMT_YUVA444P10BE: return AV_PIX_FMT_YUV444P10;
1091 ✗ case AV_PIX_FMT_YUVA420P10LE: return AV_PIX_FMT_YUV420P10;
1092 ✗ case AV_PIX_FMT_YUVA422P10LE: return AV_PIX_FMT_YUV422P10;
1093 100 case AV_PIX_FMT_YUVA444P10LE: return AV_PIX_FMT_YUV444P10;
1094 ✗ case AV_PIX_FMT_YUVA420P16BE: return AV_PIX_FMT_YUV420P16;
1095 ✗ case AV_PIX_FMT_YUVA422P16BE: return AV_PIX_FMT_YUV422P16;
1096 100 case AV_PIX_FMT_YUVA444P16BE: return AV_PIX_FMT_YUV444P16;
1097 ✗ case AV_PIX_FMT_YUVA420P16LE: return AV_PIX_FMT_YUV420P16;
1098 10 case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1099 104 case AV_PIX_FMT_YUVA444P16LE: return AV_PIX_FMT_YUV444P16;
1100
1101 // case AV_PIX_FMT_AYUV64LE:
1102 // case AV_PIX_FMT_AYUV64BE:
1103 // case AV_PIX_FMT_PAL8:
1104 1642 default: return AV_PIX_FMT_NONE;
1105 }
1106 }
1107
1108 69294 av_cold int ff_sws_init_single_context(SwsContext *sws, SwsFilter *srcFilter,
1109 SwsFilter *dstFilter)
1110 {
1111 int i;
1112 int usesVFilter, usesHFilter;
1113 int unscaled;
1114 69294 SwsInternal *c = sws_internal(sws);
1115 69294 SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1116 69294 int srcW = sws->src_w;
1117 69294 int srcH = sws->src_h;
1118 69294 int dstW = sws->dst_w;
1119 69294 int dstH = sws->dst_h;
1120 69294 int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 66, 16);
1121 int flags, cpu_flags;
1122 enum AVPixelFormat srcFormat, dstFormat;
1123 const AVPixFmtDescriptor *desc_src;
1124 const AVPixFmtDescriptor *desc_dst;
1125 69294 int ret = 0;
1126 enum AVPixelFormat tmpFmt;
1127 static const float float_mult = 1.0f / 255.0f;
1128
1129 69294 cpu_flags = av_get_cpu_flags();
1130 69294 flags = sws->flags;
1131 69294 emms_c();
1132
1133
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 69294 unscaled = (srcW == dstW && srcH == dstH);
1134
1135
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 69294 if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1136 69294 sws_setColorspaceDetails(sws, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sws->src_range,
1137 ff_yuv2rgb_coeffs[SWS_CS_DEFAULT],
1138 sws->dst_range, 0, 1 << 16, 1 << 16);
1139
1140 69294 ret = handle_formats(sws);
1141
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 69294 if (ret < 0)
1142 ✗ return ret;
1143 69294 srcFormat = sws->src_format;
1144 69294 dstFormat = sws->dst_format;
1145 69294 desc_src = av_pix_fmt_desc_get(srcFormat);
1146 69294 desc_dst = av_pix_fmt_desc_get(dstFormat);
1147
1148 // If the source has no alpha then disable alpha blendaway
1149
2/2
✓ Branch 0 taken 1110 times.
✓ Branch 1 taken 68184 times.
 69294 if (c->src0Alpha)
1150 1110 sws->alpha_blend = SWS_ALPHA_BLEND_NONE;
1151
1152
6/6
✓ Branch 0 taken 68305 times.
✓ Branch 1 taken 989 times.
✓ Branch 3 taken 1093 times.
✓ Branch 4 taken 67212 times.
✓ Branch 5 taken 1089 times.
✓ Branch 6 taken 4 times.
 70387 if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1153 1093 av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1154
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 69290 times.
 69290 if (!sws_isSupportedInput(srcFormat)) {
1155 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
1156 av_get_pix_fmt_name(srcFormat));
1157 ✗ return AVERROR(EINVAL);
1158 }
1159
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 69290 times.
 69290 if (!sws_isSupportedOutput(dstFormat)) {
1160 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n",
1161 av_get_pix_fmt_name(dstFormat));
1162 ✗ return AVERROR(EINVAL);
1163 }
1164 }
1165 av_assert2(desc_src && desc_dst);
1166
1167 69294 i = flags & (SWS_POINT |
1168 SWS_AREA |
1169 SWS_BILINEAR |
1170 SWS_FAST_BILINEAR |
1171 SWS_BICUBIC |
1172 SWS_X |
1173 SWS_GAUSS |
1174 SWS_LANCZOS |
1175 SWS_SINC |
1176 SWS_SPLINE |
1177 SWS_BICUBLIN);
1178
1179 /* provide a default scaler if not set by caller */
1180
2/2
✓ Branch 0 taken 22474 times.
✓ Branch 1 taken 46820 times.
 69294 if (!i) {
1181
3/4
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 22472 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 22474 if (dstW < srcW && dstH < srcH)
1182 ✗ flags |= SWS_BICUBIC;
1183
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 22474 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 22474 else if (dstW > srcW && dstH > srcH)
1184 ✗ flags |= SWS_BICUBIC;
1185 else
1186 22474 flags |= SWS_BICUBIC;
1187 22474 sws->flags = flags;
1188
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 46820 times.
 46820 } else if (i & (i - 1)) {
1189 ✗ av_log(c, AV_LOG_ERROR,
1190 "Exactly one scaler algorithm must be chosen, got %X\n", i);
1191 ✗ return AVERROR(EINVAL);
1192 }
1193 /* sanity check */
1194
4/8
✓ Branch 0 taken 69294 times.
✗ Branch 1 not taken.
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✗ Branch 3 not taken.
✓ Branch 4 taken 69294 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 69294 times.
 69294 if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1195 /* FIXME check if these are enough and try to lower them after
1196 * fixing the relevant parts of the code */
1197 ✗ av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1198 srcW, srcH, dstW, dstH);
1199 ✗ return AVERROR(EINVAL);
1200 }
1201
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
 69294 if (flags & SWS_FAST_BILINEAR) {
1202 ✗ if (srcW < 8 || dstW < 8) {
1203 ✗ flags ^= SWS_FAST_BILINEAR | SWS_BILINEAR;
1204 ✗ sws->flags = flags;
1205 }
1206 }
1207
1208
1/2
✓ Branch 0 taken 69294 times.
✗ Branch 1 not taken.
 69294 if (!dstFilter)
1209 69294 dstFilter = &dummyFilter;
1210
1/2
✓ Branch 0 taken 69294 times.
✗ Branch 1 not taken.
 69294 if (!srcFilter)
1211 69294 srcFilter = &dummyFilter;
1212
1213 69294 c->lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1214 69294 c->lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1215 69294 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1216 69294 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1217 69294 c->vRounder = 4 * 0x0001000100010001ULL;
1218
1219 ✗ usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1220
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 69294 (srcFilter->chrV && srcFilter->chrV->length > 1) ||
1221
2/6
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 69294 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 207882 (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1222
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 69294 (dstFilter->chrV && dstFilter->chrV->length > 1);
1223 ✗ usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1224
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 69294 (srcFilter->chrH && srcFilter->chrH->length > 1) ||
1225
2/6
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 69294 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 207882 (dstFilter->lumH && dstFilter->lumH->length > 1) ||
1226
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 69294 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 69294 (dstFilter->chrH && dstFilter->chrH->length > 1);
1227
1228 69294 av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1229 69294 av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1230
1231 69294 c->dst_slice_align = 1 << c->chrDstVSubSample;
1232
1233
4/4
✓ Branch 1 taken 23368 times.
✓ Branch 2 taken 45926 times.
✓ Branch 3 taken 16325 times.
✓ Branch 4 taken 7043 times.
 69294 if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
1234
2/2
✓ Branch 0 taken 49 times.
✓ Branch 1 taken 16276 times.
 16325 if (dstW&1) {
1235 49 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1236 49 flags |= SWS_FULL_CHR_H_INT;
1237 49 sws->flags = flags;
1238 }
1239
1240
2/2
✓ Branch 0 taken 11186 times.
✓ Branch 1 taken 5139 times.
 16325 if ( c->chrSrcHSubSample == 0
1241
2/2
✓ Branch 0 taken 11048 times.
✓ Branch 1 taken 138 times.
 11186 && c->chrSrcVSubSample == 0
1242
1/2
✓ Branch 0 taken 11048 times.
✗ Branch 1 not taken.
 11048 && sws->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
1243
1/2
✓ Branch 0 taken 11048 times.
✗ Branch 1 not taken.
 11048 && !(sws->flags & SWS_FAST_BILINEAR)
1244 ) {
1245 11048 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1246 11048 flags |= SWS_FULL_CHR_H_INT;
1247 11048 sws->flags = flags;
1248 }
1249 }
1250
1251
2/2
✓ Branch 0 taken 58374 times.
✓ Branch 1 taken 10920 times.
 69294 if (sws->dither == SWS_DITHER_AUTO) {
1252
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 58374 times.
 58374 if (flags & SWS_ERROR_DIFFUSION)
1253 ✗ sws->dither = SWS_DITHER_ED;
1254 }
1255
1256
4/4
✓ Branch 0 taken 69100 times.
✓ Branch 1 taken 194 times.
✓ Branch 2 taken 68905 times.
✓ Branch 3 taken 195 times.
 69294 if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
1257
2/2
✓ Branch 0 taken 68694 times.
✓ Branch 1 taken 211 times.
 68905 dstFormat == AV_PIX_FMT_RGB4_BYTE ||
1258
2/2
✓ Branch 0 taken 197 times.
✓ Branch 1 taken 68497 times.
 68694 dstFormat == AV_PIX_FMT_BGR8 ||
1259 dstFormat == AV_PIX_FMT_RGB8) {
1260
1/2
✓ Branch 0 taken 797 times.
✗ Branch 1 not taken.
 797 if (sws->dither == SWS_DITHER_AUTO)
1261
2/2
✓ Branch 0 taken 575 times.
✓ Branch 1 taken 222 times.
 797 sws->dither = (flags & SWS_FULL_CHR_H_INT) ? SWS_DITHER_ED : SWS_DITHER_BAYER;
1262
2/2
✓ Branch 0 taken 222 times.
✓ Branch 1 taken 575 times.
 797 if (!(flags & SWS_FULL_CHR_H_INT)) {
1263
4/8
✓ Branch 0 taken 222 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 222 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 222 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 222 times.
 222 if (sws->dither == SWS_DITHER_ED || sws->dither == SWS_DITHER_A_DITHER || sws->dither == SWS_DITHER_X_DITHER || sws->dither == SWS_DITHER_NONE) {
1264 ✗ av_log(c, AV_LOG_DEBUG,
1265 "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1266 av_get_pix_fmt_name(dstFormat));
1267 ✗ flags |= SWS_FULL_CHR_H_INT;
1268 ✗ sws->flags = flags;
1269 }
1270 }
1271
2/2
✓ Branch 0 taken 575 times.
✓ Branch 1 taken 222 times.
 797 if (flags & SWS_FULL_CHR_H_INT) {
1272
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 575 times.
 575 if (sws->dither == SWS_DITHER_BAYER) {
1273 ✗ av_log(c, AV_LOG_DEBUG,
1274 "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1275 av_get_pix_fmt_name(dstFormat));
1276 ✗ sws->dither = SWS_DITHER_ED;
1277 }
1278 }
1279 }
1280
2/2
✓ Branch 1 taken 8956 times.
✓ Branch 2 taken 60338 times.
 69294 if (isPlanarRGB(dstFormat)) {
1281
2/2
✓ Branch 0 taken 692 times.
✓ Branch 1 taken 8264 times.
 8956 if (!(flags & SWS_FULL_CHR_H_INT)) {
1282 692 av_log(c, AV_LOG_DEBUG,
1283 "%s output is not supported with half chroma resolution, switching to full\n",
1284 av_get_pix_fmt_name(dstFormat));
1285 692 flags |= SWS_FULL_CHR_H_INT;
1286 692 sws->flags = flags;
1287 }
1288 }
1289
1290 /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1291 * chroma interpolation */
1292
3/4
✓ Branch 0 taken 18787 times.
✓ Branch 1 taken 50507 times.
✓ Branch 2 taken 18787 times.
✗ Branch 3 not taken.
 88081 if (flags & SWS_FULL_CHR_H_INT &&
1293
2/2
✓ Branch 1 taken 9831 times.
✓ Branch 2 taken 8956 times.
 37574 isAnyRGB(dstFormat) &&
1294
2/2
✓ Branch 1 taken 9688 times.
✓ Branch 2 taken 143 times.
 28618 !isPlanarRGB(dstFormat) &&
1295
2/2
✓ Branch 0 taken 9546 times.
✓ Branch 1 taken 142 times.
 9688 dstFormat != AV_PIX_FMT_RGBA64LE &&
1296
2/2
✓ Branch 0 taken 9403 times.
✓ Branch 1 taken 143 times.
 9546 dstFormat != AV_PIX_FMT_RGBA64BE &&
1297
2/2
✓ Branch 0 taken 9261 times.
✓ Branch 1 taken 142 times.
 9403 dstFormat != AV_PIX_FMT_BGRA64LE &&
1298
2/2
✓ Branch 0 taken 8106 times.
✓ Branch 1 taken 1155 times.
 9261 dstFormat != AV_PIX_FMT_BGRA64BE &&
1299
2/2
✓ Branch 0 taken 7702 times.
✓ Branch 1 taken 404 times.
 8106 dstFormat != AV_PIX_FMT_RGB48LE &&
1300
2/2
✓ Branch 0 taken 7559 times.
✓ Branch 1 taken 143 times.
 7702 dstFormat != AV_PIX_FMT_RGB48BE &&
1301
2/2
✓ Branch 0 taken 7417 times.
✓ Branch 1 taken 142 times.
 7559 dstFormat != AV_PIX_FMT_BGR48LE &&
1302
2/2
✓ Branch 0 taken 7082 times.
✓ Branch 1 taken 335 times.
 7417 dstFormat != AV_PIX_FMT_BGR48BE &&
1303
2/2
✓ Branch 0 taken 6786 times.
✓ Branch 1 taken 296 times.
 7082 dstFormat != AV_PIX_FMT_RGBA &&
1304
2/2
✓ Branch 0 taken 5964 times.
✓ Branch 1 taken 822 times.
 6786 dstFormat != AV_PIX_FMT_ARGB &&
1305
2/2
✓ Branch 0 taken 5678 times.
✓ Branch 1 taken 286 times.
 5964 dstFormat != AV_PIX_FMT_BGRA &&
1306
2/2
✓ Branch 0 taken 3788 times.
✓ Branch 1 taken 1890 times.
 5678 dstFormat != AV_PIX_FMT_ABGR &&
1307
2/2
✓ Branch 0 taken 3507 times.
✓ Branch 1 taken 281 times.
 3788 dstFormat != AV_PIX_FMT_RGB24 &&
1308
2/2
✓ Branch 0 taken 3364 times.
✓ Branch 1 taken 143 times.
 3507 dstFormat != AV_PIX_FMT_BGR24 &&
1309
2/2
✓ Branch 0 taken 3221 times.
✓ Branch 1 taken 143 times.
 3364 dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1310
2/2
✓ Branch 0 taken 3076 times.
✓ Branch 1 taken 145 times.
 3221 dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1311
2/2
✓ Branch 0 taken 2932 times.
✓ Branch 1 taken 144 times.
 3076 dstFormat != AV_PIX_FMT_BGR8 &&
1312
2/2
✓ Branch 0 taken 2680 times.
✓ Branch 1 taken 252 times.
 2932 dstFormat != AV_PIX_FMT_RGB8 &&
1313
2/2
✓ Branch 0 taken 2428 times.
✓ Branch 1 taken 252 times.
 2680 dstFormat != AV_PIX_FMT_X2RGB10LE &&
1314 dstFormat != AV_PIX_FMT_X2BGR10LE
1315 ) {
1316 2428 av_log(c, AV_LOG_WARNING,
1317 "full chroma interpolation for destination format '%s' not yet implemented\n",
1318 av_get_pix_fmt_name(dstFormat));
1319 2428 flags &= ~SWS_FULL_CHR_H_INT;
1320 2428 sws->flags = flags;
1321 }
1322
4/4
✓ Branch 1 taken 23368 times.
✓ Branch 2 taken 45926 times.
✓ Branch 3 taken 7009 times.
✓ Branch 4 taken 16359 times.
 69294 if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1323 7009 c->chrDstHSubSample = 1;
1324
1325 // drop some chroma lines if the user wants it
1326 69294 c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1327 SWS_SRC_V_CHR_DROP_SHIFT;
1328 69294 c->chrSrcVSubSample += c->vChrDrop;
1329
1330 /* drop every other pixel for chroma calculation unless user
1331 * wants full chroma */
1332
7/8
✓ Branch 1 taken 27142 times.
✓ Branch 2 taken 42152 times.
✓ Branch 3 taken 26788 times.
✓ Branch 4 taken 354 times.
✓ Branch 5 taken 26788 times.
✗ Branch 6 not taken.
✓ Branch 7 taken 26517 times.
✓ Branch 8 taken 271 times.
 69294 if (isAnyRGB(srcFormat) && !(srcW & 1) && !(flags & SWS_FULL_CHR_H_INP) &&
1333
3/4
✓ Branch 0 taken 26246 times.
✓ Branch 1 taken 271 times.
✓ Branch 2 taken 26246 times.
✗ Branch 3 not taken.
 26517 srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1334
3/4
✓ Branch 0 taken 26246 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 25975 times.
✓ Branch 3 taken 271 times.
 26246 srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1335
4/4
✓ Branch 0 taken 25704 times.
✓ Branch 1 taken 271 times.
✓ Branch 2 taken 25433 times.
✓ Branch 3 taken 271 times.
 25975 srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1336
4/4
✓ Branch 0 taken 25161 times.
✓ Branch 1 taken 272 times.
✓ Branch 2 taken 24780 times.
✓ Branch 3 taken 381 times.
 25433 srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1337
4/4
✓ Branch 0 taken 23453 times.
✓ Branch 1 taken 1327 times.
✓ Branch 2 taken 23182 times.
✓ Branch 3 taken 271 times.
 24780 srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1338
4/4
✓ Branch 0 taken 22910 times.
✓ Branch 1 taken 272 times.
✓ Branch 2 taken 22639 times.
✓ Branch 3 taken 271 times.
 23182 srcFormat != AV_PIX_FMT_GBRP10MSBBE && srcFormat != AV_PIX_FMT_GBRP10MSBLE &&
1339
4/4
✓ Branch 0 taken 22367 times.
✓ Branch 1 taken 272 times.
✓ Branch 2 taken 21986 times.
✓ Branch 3 taken 381 times.
 22639 srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1340
4/4
✓ Branch 0 taken 20674 times.
✓ Branch 1 taken 1312 times.
✓ Branch 2 taken 20403 times.
✓ Branch 3 taken 271 times.
 21986 srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1341
4/4
✓ Branch 0 taken 20131 times.
✓ Branch 1 taken 272 times.
✓ Branch 2 taken 19860 times.
✓ Branch 3 taken 271 times.
 20403 srcFormat != AV_PIX_FMT_GBRP12MSBBE && srcFormat != AV_PIX_FMT_GBRP12MSBLE &&
1342
4/4
✓ Branch 0 taken 19588 times.
✓ Branch 1 taken 272 times.
✓ Branch 2 taken 19317 times.
✓ Branch 3 taken 271 times.
 19860 srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1343
4/4
✓ Branch 0 taken 19046 times.
✓ Branch 1 taken 271 times.
✓ Branch 2 taken 18775 times.
✓ Branch 3 taken 271 times.
 19317 srcFormat != AV_PIX_FMT_GBRAP14BE && srcFormat != AV_PIX_FMT_GBRAP14LE &&
1344
4/4
✓ Branch 0 taken 18503 times.
✓ Branch 1 taken 272 times.
✓ Branch 2 taken 18082 times.
✓ Branch 3 taken 421 times.
 18775 srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1345
4/4
✓ Branch 0 taken 17484 times.
✓ Branch 1 taken 598 times.
✓ Branch 2 taken 17203 times.
✓ Branch 3 taken 281 times.
 18082 srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1346
4/4
✓ Branch 0 taken 16929 times.
✓ Branch 1 taken 274 times.
✓ Branch 2 taken 16658 times.
✓ Branch 3 taken 271 times.
 17203 srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1347
4/4
✓ Branch 0 taken 16352 times.
✓ Branch 1 taken 306 times.
✓ Branch 2 taken 16081 times.
✓ Branch 3 taken 271 times.
 16658 srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1348
3/4
✓ Branch 0 taken 15810 times.
✓ Branch 1 taken 271 times.
✓ Branch 2 taken 15810 times.
✗ Branch 3 not taken.
 16081 srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1349
3/4
✓ Branch 0 taken 15591 times.
✓ Branch 1 taken 219 times.
✓ Branch 2 taken 15591 times.
✗ Branch 3 not taken.
 15810 srcFormat != AV_PIX_FMT_GBRPF16BE && srcFormat != AV_PIX_FMT_GBRPF16LE &&
1350
2/2
✓ Branch 0 taken 15546 times.
✓ Branch 1 taken 45 times.
 15591 srcFormat != AV_PIX_FMT_GBRAPF16BE && srcFormat != AV_PIX_FMT_GBRAPF16LE &&
1351
2/2
✓ Branch 0 taken 13491 times.
✓ Branch 1 taken 2055 times.
 15546 ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1352
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 13491 times.
 13491 (flags & SWS_FAST_BILINEAR)))
1353 2055 c->chrSrcHSubSample = 1;
1354
1355 // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1356 69294 c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1357 69294 c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1358 69294 c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1359 69294 c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1360
1361
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 69294 times.
 69294 if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1362 ✗ goto nomem;
1363
1364 69294 c->srcBpc = desc_src->comp[0].depth;
1365
2/2
✓ Branch 0 taken 5495 times.
✓ Branch 1 taken 63799 times.
 69294 if (c->srcBpc < 8)
1366 5495 c->srcBpc = 8;
1367 69294 c->dstBpc = desc_dst->comp[0].depth;
1368
2/2
✓ Branch 0 taken 4602 times.
✓ Branch 1 taken 64692 times.
 69294 if (c->dstBpc < 8)
1369 4602 c->dstBpc = 8;
1370
4/4
✓ Branch 1 taken 42152 times.
✓ Branch 2 taken 27142 times.
✓ Branch 3 taken 827 times.
✓ Branch 4 taken 41325 times.
 69294 if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1371 27969 c->srcBpc = 16;
1372
2/2
✓ Branch 0 taken 9841 times.
✓ Branch 1 taken 59453 times.
 69294 if (c->dstBpc == 16)
1373 9841 dst_stride <<= 1;
1374
1375
6/6
✓ Branch 0 taken 39328 times.
✓ Branch 1 taken 29966 times.
✓ Branch 2 taken 6415 times.
✓ Branch 3 taken 32913 times.
✓ Branch 4 taken 5600 times.
✓ Branch 5 taken 815 times.
 69294 if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1376
2/2
✓ Branch 0 taken 4489 times.
✓ Branch 1 taken 1111 times.
 5600 c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1377
3/4
✓ Branch 0 taken 5600 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 4235 times.
✓ Branch 3 taken 254 times.
 15435 c->chrDstW >= c->chrSrcW &&
1378
1/2
✓ Branch 0 taken 4235 times.
✗ Branch 1 not taken.
 4235 (srcW & 15) == 0;
1379
7/8
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 5600 if (!c->canMMXEXTBeUsed && dstW >= srcW && c->chrDstW >= c->chrSrcW && (srcW & 15) == 0
1380
1381
1/2
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 341 && (flags & SWS_FAST_BILINEAR)) {
1382 ✗ if (flags & SWS_PRINT_INFO)
1383 ✗ av_log(c, AV_LOG_INFO,
1384 "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1385 }
1386
4/8
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 5600 if (usesHFilter || isNBPS(sws->src_format) || is16BPS(sws->src_format) || isAnyRGB(sws->src_format))
1387 ✗ c->canMMXEXTBeUsed = 0;
1388 } else
1389 63694 c->canMMXEXTBeUsed = 0;
1390
1391 69294 c->chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1392 69294 c->chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1393
1394 /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1395 * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1396 * correct scaling.
1397 * n-2 is the last chrominance sample available.
1398 * This is not perfect, but no one should notice the difference, the more
1399 * correct variant would be like the vertical one, but that would require
1400 * some special code for the first and last pixel */
1401
1/2
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 69294 if (flags & SWS_FAST_BILINEAR) {
1402 ✗ if (c->canMMXEXTBeUsed) {
1403 ✗ c->lumXInc += 20;
1404 ✗ c->chrXInc += 20;
1405 }
1406 // we don't use the x86 asm scaler if MMX is available
1407 ✗ else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1408 ✗ c->lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1409 ✗ c->chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1410 }
1411 }
1412
1413 // hardcoded for now
1414 69294 c->gamma_value = 2.2;
1415 69294 tmpFmt = AV_PIX_FMT_RGBA64LE;
1416
1417
3/8
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 69294 if (!unscaled && sws->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1418 SwsInternal *c2;
1419 ✗ c->cascaded_context[0] = NULL;
1420
1421 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1422 srcW, srcH, tmpFmt, 64);
1423 ✗ if (ret < 0)
1424 ✗ return ret;
1425
1426 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1427 srcW, srcH, tmpFmt,
1428 flags, NULL, NULL,
1429 ✗ sws->scaler_params);
1430 ✗ if (!c->cascaded_context[0]) {
1431 ✗ return AVERROR(ENOMEM);
1432 }
1433
1434 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1435 dstW, dstH, tmpFmt,
1436 flags, srcFilter, dstFilter,
1437 ✗ sws->scaler_params);
1438
1439 ✗ if (!c->cascaded_context[1])
1440 ✗ return AVERROR(ENOMEM);
1441
1442 ✗ c2 = sws_internal(c->cascaded_context[1]);
1443 ✗ c2->is_internal_gamma = 1;
1444 ✗ c2->gamma = alloc_gamma_tbl( c->gamma_value);
1445 ✗ c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1446 ✗ if (!c2->gamma || !c2->inv_gamma)
1447 ✗ return AVERROR(ENOMEM);
1448
1449 // is_internal_flag is set after creating the context
1450 // to properly create the gamma convert FilterDescriptor
1451 // we have to re-initialize it
1452 ✗ ff_free_filters(c2);
1453 ✗ if ((ret = ff_init_filters(c2)) < 0) {
1454 ✗ sws_freeContext(c->cascaded_context[1]);
1455 ✗ c->cascaded_context[1] = NULL;
1456 ✗ return ret;
1457 }
1458
1459 ✗ c->cascaded_context[2] = NULL;
1460 ✗ if (dstFormat != tmpFmt) {
1461 ✗ ret = av_image_alloc(c->cascaded_tmp[1], c->cascaded_tmpStride[1],
1462 dstW, dstH, tmpFmt, 64);
1463 ✗ if (ret < 0)
1464 ✗ return ret;
1465
1466 ✗ c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1467 dstW, dstH, dstFormat,
1468 flags, NULL, NULL,
1469 ✗ sws->scaler_params);
1470 ✗ if (!c->cascaded_context[2])
1471 ✗ return AVERROR(ENOMEM);
1472 }
1473 ✗ return 0;
1474 }
1475
1476
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 69294 if (isBayer(srcFormat)) {
1477 ✗ if (!unscaled ||
1478 ✗ (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1479 dstFormat != AV_PIX_FMT_RGB48)) {
1480 ✗ enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1481
1482 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1483 srcW, srcH, tmpFormat, 64);
1484 ✗ if (ret < 0)
1485 ✗ return ret;
1486
1487 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1488 srcW, srcH, tmpFormat,
1489 flags, srcFilter, NULL,
1490 ✗ sws->scaler_params);
1491 ✗ if (!c->cascaded_context[0])
1492 ✗ return AVERROR(ENOMEM);
1493
1494 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1495 dstW, dstH, dstFormat,
1496 flags, NULL, dstFilter,
1497 ✗ sws->scaler_params);
1498 ✗ if (!c->cascaded_context[1])
1499 ✗ return AVERROR(ENOMEM);
1500 ✗ return 0;
1501 }
1502 }
1503
1504
6/6
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 69294 if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1505
2/2
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✓ Branch 1 taken 32 times.
 8224 for (i = 0; i < 256; ++i){
1506 8192 c->uint2float_lut[i] = (float)i * float_mult;
1507 }
1508 }
1509
1510 // float will be converted to uint16_t
1511
6/6
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 69294 if ((srcFormat == AV_PIX_FMT_GRAYF32BE || srcFormat == AV_PIX_FMT_GRAYF32LE) &&
1512
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 541 (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1513 dstFormat != AV_PIX_FMT_GRAY8))){
1514 540 c->srcBpc = 16;
1515 }
1516
1517
4/4
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 69294 if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1518 5575 enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1519
1520
3/4
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 5575 if (tmpFormat != AV_PIX_FMT_NONE && sws->alpha_blend != SWS_ALPHA_BLEND_NONE) {
1521 ✗ if (!unscaled ||
1522 ✗ dstFormat != tmpFormat ||
1523 ✗ usesHFilter || usesVFilter ||
1524 ✗ sws->src_range != sws->dst_range
1525 ) {
1526 ✗ c->cascaded_mainindex = 1;
1527 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1528 srcW, srcH, tmpFormat, 64);
1529 ✗ if (ret < 0)
1530 ✗ return ret;
1531
1532 ✗ c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
1533 srcW, srcH, tmpFormat,
1534 ✗ flags, sws->scaler_params);
1535 ✗ if (!c->cascaded_context[0])
1536 ✗ return AVERROR(EINVAL);
1537 ✗ c->cascaded_context[0]->alpha_blend = sws->alpha_blend;
1538 ✗ ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1539 ✗ if (ret < 0)
1540 ✗ return ret;
1541
1542 ✗ c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
1543 dstW, dstH, dstFormat,
1544 ✗ flags, sws->scaler_params);
1545 ✗ if (!c->cascaded_context[1])
1546 ✗ return AVERROR(EINVAL);
1547
1548 ✗ c->cascaded_context[1]->src_range = sws->src_range;
1549 ✗ c->cascaded_context[1]->dst_range = sws->dst_range;
1550 ✗ ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1551 ✗ if (ret < 0)
1552 ✗ return ret;
1553
1554 ✗ return 0;
1555 }
1556 }
1557 }
1558
1559 /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1560
4/6
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 69294 if (unscaled && !usesHFilter && !usesVFilter &&
1561
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 68305 sws->alpha_blend != SWS_ALPHA_BLEND_NONE &&
1562 ✗ isALPHA(srcFormat) &&
1563 ✗ (sws->src_range == sws->dst_range || isAnyRGB(dstFormat)) &&
1564 ✗ alphaless_fmt(srcFormat) == dstFormat
1565 ) {
1566 ✗ c->convert_unscaled = ff_sws_alphablendaway;
1567
1568 ✗ if (flags & SWS_PRINT_INFO)
1569 ✗ av_log(c, AV_LOG_INFO,
1570 "using alpha blendaway %s -> %s special converter\n",
1571 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1572 ✗ return 0;
1573 }
1574
1575 /* unscaled special cases */
1576
4/6
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 69294 if (unscaled && !usesHFilter && !usesVFilter &&
1577
6/6
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✓ Branch 4 taken 1708 times.
✓ Branch 5 taken 7037 times.
✓ Branch 6 taken 90 times.
 75432 (sws->src_range == sws->dst_range || isAnyRGB(dstFormat) ||
1578
3/4
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✓ Branch 3 taken 30 times.
✗ Branch 5 not taken.
✓ Branch 6 taken 7007 times.
 14164 isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1579
1580 61298 ff_get_unscaled_swscale(c);
1581
1582
2/2
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✓ Branch 1 taken 50380 times.
 61298 if (c->convert_unscaled) {
1583
1/2
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 10918 if (flags & SWS_PRINT_INFO)
1584 ✗ av_log(c, AV_LOG_INFO,
1585 "using unscaled %s -> %s special converter\n",
1586 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1587 10918 return 0;
1588 }
1589 }
1590
1591 #if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
1592 #define USE_MMAP 1
1593 #else
1594 #define USE_MMAP 0
1595 #endif
1596
1597 /* precalculate horizontal scaler filter coefficients */
1598 {
1599 #if HAVE_MMXEXT_INLINE
1600 // can't downscale !!!
1601
3/4
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 58376 if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
1602 ✗ c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
1603 NULL, NULL, 8);
1604 ✗ c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
1605 NULL, NULL, NULL, 4);
1606
1607 #if USE_MMAP
1608 ✗ c->lumMmxextFilterCode = mmap(NULL, c->lumMmxextFilterCodeSize,
1609 PROT_READ | PROT_WRITE,
1610 MAP_PRIVATE | MAP_ANONYMOUS,
1611 -1, 0);
1612 ✗ c->chrMmxextFilterCode = mmap(NULL, c->chrMmxextFilterCodeSize,
1613 PROT_READ | PROT_WRITE,
1614 MAP_PRIVATE | MAP_ANONYMOUS,
1615 -1, 0);
1616 #elif HAVE_VIRTUALALLOC
1617 c->lumMmxextFilterCode = VirtualAlloc(NULL,
1618 c->lumMmxextFilterCodeSize,
1619 MEM_COMMIT,
1620 PAGE_EXECUTE_READWRITE);
1621 c->chrMmxextFilterCode = VirtualAlloc(NULL,
1622 c->chrMmxextFilterCodeSize,
1623 MEM_COMMIT,
1624 PAGE_EXECUTE_READWRITE);
1625 #else
1626 c->lumMmxextFilterCode = av_malloc(c->lumMmxextFilterCodeSize);
1627 c->chrMmxextFilterCode = av_malloc(c->chrMmxextFilterCodeSize);
1628 #endif
1629
1630 #ifdef MAP_ANONYMOUS
1631 ✗ if (c->lumMmxextFilterCode == MAP_FAILED || c->chrMmxextFilterCode == MAP_FAILED)
1632 #else
1633 if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode)
1634 #endif
1635 {
1636 ✗ av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1637 ✗ return AVERROR(ENOMEM);
1638 }
1639
1640 ✗ if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1641 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1642 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1643 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1644 ✗ goto nomem;
1645
1646 ✗ ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1647 c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1648 ✗ ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1649 c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1650
1651 #if USE_MMAP
1652 ✗ if ( mprotect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1
1653 ✗ || mprotect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1) {
1654 ✗ av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1655 ✗ ret = AVERROR(EINVAL);
1656 ✗ goto fail;
1657 }
1658 #endif
1659 } else
1660 #endif /* HAVE_MMXEXT_INLINE */
1661 {
1662
2/2
✓ Branch 0 taken 32561 times.
✓ Branch 1 taken 25815 times.
 58376 const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1663 PPC_ALTIVEC(cpu_flags) ? 8 :
1664 have_neon(cpu_flags) ? 4 :
1665 have_lsx(cpu_flags) ? 8 :
1666 have_lasx(cpu_flags) ? 8 : 1;
1667
1668
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 58376 times.
 116752 if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1669 &c->hLumFilterSize, c->lumXInc,
1670 srcW, dstW, filterAlign, 1 << 14,
1671 58376 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1672 cpu_flags, srcFilter->lumH, dstFilter->lumH,
1673
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 58376 times.
 58376 sws->scaler_params,
1674 get_local_pos(c, 0, 0, 0),
1675 get_local_pos(c, 0, 0, 0))) < 0)
1676 ✗ goto fail;
1677
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 58376 times.
 58376 if (ff_shuffle_filter_coefficients(c, c->hLumFilterPos, c->hLumFilterSize, c->hLumFilter, dstW) < 0)
1678 ✗ goto nomem;
1679
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 58376 times.
 116752 if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1680 &c->hChrFilterSize, c->chrXInc,
1681 c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1682 58376 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1683 cpu_flags, srcFilter->chrH, dstFilter->chrH,
1684
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 58376 times.
 58376 sws->scaler_params,
1685 get_local_pos(c, c->chrSrcHSubSample, sws->src_h_chr_pos, 0),
1686 get_local_pos(c, c->chrDstHSubSample, sws->dst_h_chr_pos, 0))) < 0)
1687 ✗ goto fail;
1688
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 58376 times.
 58376 if (ff_shuffle_filter_coefficients(c, c->hChrFilterPos, c->hChrFilterSize, c->hChrFilter, c->chrDstW) < 0)
1689 ✗ goto nomem;
1690 }
1691 } // initialize horizontal stuff
1692
1693 /* precalculate vertical scaler filter coefficients */
1694 {
1695
2/2
✓ Branch 0 taken 32561 times.
✓ Branch 1 taken 25815 times.
 58376 const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1696 PPC_ALTIVEC(cpu_flags) ? 8 :
1697 have_neon(cpu_flags) ? 2 : 1;
1698
1699
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 58376 times.
 116752 if ((ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1700 c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1701 58376 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1702 cpu_flags, srcFilter->lumV, dstFilter->lumV,
1703
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 58376 times.
 58376 sws->scaler_params,
1704 get_local_pos(c, 0, 0, 1),
1705 get_local_pos(c, 0, 0, 1))) < 0)
1706 ✗ goto fail;
1707
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 58376 times.
 116752 if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1708 c->chrYInc, c->chrSrcH, c->chrDstH,
1709 filterAlign, (1 << 12),
1710 58376 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1711 cpu_flags, srcFilter->chrV, dstFilter->chrV,
1712
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 58376 times.
 58376 sws->scaler_params,
1713 get_local_pos(c, c->chrSrcVSubSample, sws->src_v_chr_pos, 1),
1714 get_local_pos(c, c->chrDstVSubSample, sws->dst_v_chr_pos, 1))) < 0)
1715
1716 ✗ goto fail;
1717
1718 #if HAVE_ALTIVEC
1719 if (!FF_ALLOC_TYPED_ARRAY(c->vYCoeffsBank, c->vLumFilterSize * sws->dst_h) ||
1720 !FF_ALLOC_TYPED_ARRAY(c->vCCoeffsBank, c->vChrFilterSize * c->chrDstH))
1721 goto nomem;
1722
1723 for (i = 0; i < c->vLumFilterSize * sws->dst_h; i++) {
1724 int j;
1725 short *p = (short *)&c->vYCoeffsBank[i];
1726 for (j = 0; j < 8; j++)
1727 p[j] = c->vLumFilter[i];
1728 }
1729
1730 for (i = 0; i < c->vChrFilterSize * c->chrDstH; i++) {
1731 int j;
1732 short *p = (short *)&c->vCCoeffsBank[i];
1733 for (j = 0; j < 8; j++)
1734 p[j] = c->vChrFilter[i];
1735 }
1736 #endif
1737 }
1738
1739
2/2
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✓ Branch 1 taken 58376 times.
 291880 for (i = 0; i < 4; i++)
1740
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 233504 times.
 233504 if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], sws->dst_w + 3))
1741 ✗ goto nomem;
1742
1743
4/4
✓ Branch 1 taken 9768 times.
✓ Branch 2 taken 48608 times.
✓ Branch 4 taken 5748 times.
✓ Branch 5 taken 4020 times.
 58376 c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(sws->src_format) && isALPHA(sws->dst_format)) ? 1 : 0;
1744
1745 // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1746 58376 c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1747 58376 c->uv_offx2 = dst_stride + 16;
1748
1749
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 58376 times.
 58376 av_assert0(c->chrDstH <= dstH);
1750
1751
1/2
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✓ Branch 1 taken 58376 times.
 58376 if (flags & SWS_PRINT_INFO) {
1752 ✗ const char *scaler = NULL, *cpucaps;
1753
1754 ✗ for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1755 ✗ if (flags & scale_algorithms[i].flag) {
1756 ✗ scaler = scale_algorithms[i].description;
1757 ✗ break;
1758 }
1759 }
1760 ✗ if (!scaler)
1761 ✗ scaler = "ehh flags invalid?!";
1762 ✗ av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1763 scaler,
1764 av_get_pix_fmt_name(srcFormat),
1765 ✗ dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1766 ✗ dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1767 ✗ dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1768 "dithered " : "",
1769 av_get_pix_fmt_name(dstFormat));
1770
1771 ✗ if (INLINE_MMXEXT(cpu_flags))
1772 ✗ cpucaps = "MMXEXT";
1773 ✗ else if (INLINE_MMX(cpu_flags))
1774 ✗ cpucaps = "MMX";
1775 else if (PPC_ALTIVEC(cpu_flags))
1776 cpucaps = "AltiVec";
1777 else
1778 ✗ cpucaps = "C";
1779
1780 ✗ av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1781
1782 ✗ av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1783 ✗ av_log(c, AV_LOG_DEBUG,
1784 "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1785 sws->src_w, sws->src_h, sws->dst_w, sws->dst_h, c->lumXInc, c->lumYInc);
1786 ✗ av_log(c, AV_LOG_DEBUG,
1787 "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1788 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1789 c->chrXInc, c->chrYInc);
1790 }
1791
1792 58376 ff_sws_init_scale(c);
1793
1794 58376 return ff_init_filters(c);
1795 ✗ nomem:
1796 ✗ ret = AVERROR(ENOMEM);
1797 ✗ fail: // FIXME replace things by appropriate error codes
1798 ✗ if (ret == RETCODE_USE_CASCADE) {
1799 ✗ int tmpW = sqrt(srcW * (int64_t)dstW);
1800 ✗ int tmpH = sqrt(srcH * (int64_t)dstH);
1801 ✗ enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1802
1803 ✗ if (isALPHA(srcFormat))
1804 ✗ tmpFormat = AV_PIX_FMT_YUVA420P;
1805
1806 ✗ if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1807 ✗ return AVERROR(EINVAL);
1808
1809 ✗ ret = av_image_alloc(c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1810 tmpW, tmpH, tmpFormat, 64);
1811 ✗ if (ret < 0)
1812 ✗ return ret;
1813
1814 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1815 tmpW, tmpH, tmpFormat,
1816 flags, srcFilter, NULL,
1817 ✗ sws->scaler_params);
1818 ✗ if (!c->cascaded_context[0])
1819 ✗ return AVERROR(ENOMEM);
1820
1821 ✗ c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
1822 dstW, dstH, dstFormat,
1823 flags, NULL, dstFilter,
1824 ✗ sws->scaler_params);
1825 ✗ if (!c->cascaded_context[1])
1826 ✗ return AVERROR(ENOMEM);
1827 ✗ return 0;
1828 }
1829 ✗ return ret;
1830 }
1831
1832 ✗ static int context_init_threaded(SwsContext *sws,
1833 SwsFilter *src_filter, SwsFilter *dst_filter)
1834 {
1835 ✗ SwsInternal *c = sws_internal(sws);
1836 int ret;
1837
1838 ✗ ret = avpriv_slicethread_create(&c->slicethread, (void*) sws,
1839 ff_sws_slice_worker, NULL, sws->threads);
1840 ✗ if (ret == AVERROR(ENOSYS)) {
1841 ✗ sws->threads = 1;
1842 ✗ return 0;
1843 ✗ } else if (ret < 0)
1844 ✗ return ret;
1845
1846 ✗ sws->threads = ret;
1847
1848 ✗ c->slice_ctx = av_calloc(sws->threads, sizeof(*c->slice_ctx));
1849 ✗ c->slice_err = av_calloc(sws->threads, sizeof(*c->slice_err));
1850 ✗ if (!c->slice_ctx || !c->slice_err)
1851 ✗ return AVERROR(ENOMEM);
1852
1853 ✗ for (int i = 0; i < sws->threads; i++) {
1854 SwsContext *slice;
1855 ✗ slice = c->slice_ctx[i] = sws_alloc_context();
1856 ✗ if (!slice)
1857 ✗ return AVERROR(ENOMEM);
1858 ✗ sws_internal(slice)->parent = sws;
1859 ✗ c->nb_slice_ctx++;
1860
1861 ✗ ret = av_opt_copy(slice, sws);
1862 ✗ if (ret < 0)
1863 ✗ return ret;
1864 ✗ slice->threads = 1;
1865
1866 ✗ ret = ff_sws_init_single_context(slice, src_filter, dst_filter);
1867 ✗ if (ret < 0)
1868 ✗ return ret;
1869
1870 ✗ if (slice->dither == SWS_DITHER_ED) {
1871 ✗ av_log(c, AV_LOG_VERBOSE,
1872 "Error-diffusion dither is in use, scaling will be single-threaded.");
1873 ✗ break;
1874 }
1875 }
1876
1877 ✗ return 0;
1878 }
1879
1880 46212 av_cold int sws_init_context(SwsContext *sws, SwsFilter *srcFilter,
1881 SwsFilter *dstFilter)
1882 {
1883 46212 SwsInternal *c = sws_internal(sws);
1884 static AVOnce rgb2rgb_once = AV_ONCE_INIT;
1885 enum AVPixelFormat src_format, dst_format;
1886 int ret;
1887
1888 46212 c->frame_src = av_frame_alloc();
1889 46212 c->frame_dst = av_frame_alloc();
1890
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 46212 if (!c->frame_src || !c->frame_dst)
1891 ✗ return AVERROR(ENOMEM);
1892
1893
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 46212 if (ff_thread_once(&rgb2rgb_once, ff_sws_rgb2rgb_init) != 0)
1894 ✗ return AVERROR_UNKNOWN;
1895
1896 46212 src_format = sws->src_format;
1897 46212 dst_format = sws->dst_format;
1898 46212 sws->src_range |= handle_jpeg(&sws->src_format);
1899 46212 sws->dst_range |= handle_jpeg(&sws->dst_format);
1900
1901
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 46212 if (src_format != sws->src_format || dst_format != sws->dst_format)
1902 678 av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
1903
1904
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 46212 if (sws->threads != 1) {
1905 ✗ ret = context_init_threaded(sws, srcFilter, dstFilter);
1906 ✗ if (ret < 0 || sws->threads > 1)
1907 ✗ return ret;
1908 // threading disabled in this build, init as single-threaded
1909 }
1910
1911 46212 return ff_sws_init_single_context(sws, srcFilter, dstFilter);
1912 }
1913
1914 3151 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
1915 int dstW, int dstH, enum AVPixelFormat dstFormat,
1916 int flags, SwsFilter *srcFilter,
1917 SwsFilter *dstFilter, const double *param)
1918 {
1919 SwsContext *sws;
1920
1921 3151 sws = alloc_set_opts(srcW, srcH, srcFormat,
1922 dstW, dstH, dstFormat,
1923 flags, param);
1924
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 3151 if (!sws)
1925 ✗ return NULL;
1926
1927
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 3151 if (sws_init_context(sws, srcFilter, dstFilter) < 0) {
1928 ✗ sws_freeContext(sws);
1929 ✗ return NULL;
1930 }
1931
1932 3151 return sws;
1933 }
1934
1935 ✗ static int isnan_vec(SwsVector *a)
1936 {
1937 int i;
1938 ✗ for (i=0; i<a->length; i++)
1939 ✗ if (isnan(a->coeff[i]))
1940 ✗ return 1;
1941 ✗ return 0;
1942 }
1943
1944 ✗ static void makenan_vec(SwsVector *a)
1945 {
1946 int i;
1947 ✗ for (i=0; i<a->length; i++)
1948 ✗ a->coeff[i] = NAN;
1949 ✗ }
1950
1951 ✗ SwsVector *sws_allocVec(int length)
1952 {
1953 SwsVector *vec;
1954
1955 ✗ if(length <= 0 || length > INT_MAX/ sizeof(double))
1956 ✗ return NULL;
1957
1958 ✗ vec = av_malloc(sizeof(SwsVector));
1959 ✗ if (!vec)
1960 ✗ return NULL;
1961 ✗ vec->length = length;
1962 ✗ vec->coeff = av_malloc(sizeof(double) * length);
1963 ✗ if (!vec->coeff)
1964 ✗ av_freep(&vec);
1965 ✗ return vec;
1966 }
1967
1968 ✗ SwsVector *sws_getGaussianVec(double variance, double quality)
1969 {
1970 ✗ const int length = (int)(variance * quality + 0.5) | 1;
1971 int i;
1972 ✗ double middle = (length - 1) * 0.5;
1973 SwsVector *vec;
1974
1975 ✗ if(variance < 0 || quality < 0)
1976 ✗ return NULL;
1977
1978 ✗ vec = sws_allocVec(length);
1979
1980 ✗ if (!vec)
1981 ✗ return NULL;
1982
1983 ✗ for (i = 0; i < length; i++) {
1984 ✗ double dist = i - middle;
1985 ✗ vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
1986 ✗ sqrt(2 * variance * M_PI);
1987 }
1988
1989 ✗ sws_normalizeVec(vec, 1.0);
1990
1991 ✗ return vec;
1992 }
1993
1994 /**
1995 * Allocate and return a vector with length coefficients, all
1996 * with the same value c.
1997 */
1998 static
1999 ✗ SwsVector *sws_getConstVec(double c, int length)
2000 {
2001 int i;
2002 ✗ SwsVector *vec = sws_allocVec(length);
2003
2004 ✗ if (!vec)
2005 ✗ return NULL;
2006
2007 ✗ for (i = 0; i < length; i++)
2008 ✗ vec->coeff[i] = c;
2009
2010 ✗ return vec;
2011 }
2012
2013 /**
2014 * Allocate and return a vector with just one coefficient, with
2015 * value 1.0.
2016 */
2017 static
2018 ✗ SwsVector *sws_getIdentityVec(void)
2019 {
2020 ✗ return sws_getConstVec(1.0, 1);
2021 }
2022
2023 ✗ static double sws_dcVec(SwsVector *a)
2024 {
2025 int i;
2026 ✗ double sum = 0;
2027
2028 ✗ for (i = 0; i < a->length; i++)
2029 ✗ sum += a->coeff[i];
2030
2031 ✗ return sum;
2032 }
2033
2034 ✗ void sws_scaleVec(SwsVector *a, double scalar)
2035 {
2036 int i;
2037
2038 ✗ for (i = 0; i < a->length; i++)
2039 ✗ a->coeff[i] *= scalar;
2040 ✗ }
2041
2042 ✗ void sws_normalizeVec(SwsVector *a, double height)
2043 {
2044 ✗ sws_scaleVec(a, height / sws_dcVec(a));
2045 ✗ }
2046
2047 ✗ static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2048 {
2049 ✗ int length = FFMAX(a->length, b->length);
2050 int i;
2051 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2052
2053 ✗ if (!vec)
2054 ✗ return NULL;
2055
2056 ✗ for (i = 0; i < a->length; i++)
2057 ✗ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2058 ✗ for (i = 0; i < b->length; i++)
2059 ✗ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2060
2061 ✗ return vec;
2062 }
2063
2064 /* shift left / or right if "shift" is negative */
2065 ✗ static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2066 {
2067 ✗ int length = a->length + FFABS(shift) * 2;
2068 int i;
2069 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2070
2071 ✗ if (!vec)
2072 ✗ return NULL;
2073
2074 ✗ for (i = 0; i < a->length; i++) {
2075 ✗ vec->coeff[i + (length - 1) / 2 -
2076 ✗ (a->length - 1) / 2 - shift] = a->coeff[i];
2077 }
2078
2079 ✗ return vec;
2080 }
2081
2082 static
2083 ✗ void sws_shiftVec(SwsVector *a, int shift)
2084 {
2085 ✗ SwsVector *shifted = sws_getShiftedVec(a, shift);
2086 ✗ if (!shifted) {
2087 ✗ makenan_vec(a);
2088 ✗ return;
2089 }
2090 ✗ av_free(a->coeff);
2091 ✗ a->coeff = shifted->coeff;
2092 ✗ a->length = shifted->length;
2093 ✗ av_free(shifted);
2094 }
2095
2096 static
2097 ✗ void sws_addVec(SwsVector *a, SwsVector *b)
2098 {
2099 ✗ SwsVector *sum = sws_sumVec(a, b);
2100 ✗ if (!sum) {
2101 ✗ makenan_vec(a);
2102 ✗ return;
2103 }
2104 ✗ av_free(a->coeff);
2105 ✗ a->coeff = sum->coeff;
2106 ✗ a->length = sum->length;
2107 ✗ av_free(sum);
2108 }
2109
2110 /**
2111 * Print with av_log() a textual representation of the vector a
2112 * if log_level <= av_log_level.
2113 */
2114 static
2115 ✗ void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2116 {
2117 int i;
2118 ✗ double max = 0;
2119 ✗ double min = 0;
2120 double range;
2121
2122 ✗ for (i = 0; i < a->length; i++)
2123 ✗ if (a->coeff[i] > max)
2124 ✗ max = a->coeff[i];
2125
2126 ✗ for (i = 0; i < a->length; i++)
2127 ✗ if (a->coeff[i] < min)
2128 ✗ min = a->coeff[i];
2129
2130 ✗ range = max - min;
2131
2132 ✗ for (i = 0; i < a->length; i++) {
2133 ✗ int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2134 ✗ av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2135 ✗ for (; x > 0; x--)
2136 ✗ av_log(log_ctx, log_level, " ");
2137 ✗ av_log(log_ctx, log_level, "|\n");
2138 }
2139 ✗ }
2140
2141 ✗ void sws_freeVec(SwsVector *a)
2142 {
2143 ✗ if (!a)
2144 ✗ return;
2145 ✗ av_freep(&a->coeff);
2146 ✗ a->length = 0;
2147 ✗ av_free(a);
2148 }
2149
2150 ✗ void sws_freeFilter(SwsFilter *filter)
2151 {
2152 ✗ if (!filter)
2153 ✗ return;
2154
2155 ✗ sws_freeVec(filter->lumH);
2156 ✗ sws_freeVec(filter->lumV);
2157 ✗ sws_freeVec(filter->chrH);
2158 ✗ sws_freeVec(filter->chrV);
2159 ✗ av_free(filter);
2160 }
2161
2162 ✗ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2163 float lumaSharpen, float chromaSharpen,
2164 float chromaHShift, float chromaVShift,
2165 int verbose)
2166 {
2167 ✗ SwsFilter *filter = av_malloc(sizeof(SwsFilter));
2168 ✗ if (!filter)
2169 ✗ return NULL;
2170
2171 ✗ if (lumaGBlur != 0.0) {
2172 ✗ filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
2173 ✗ filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
2174 } else {
2175 ✗ filter->lumH = sws_getIdentityVec();
2176 ✗ filter->lumV = sws_getIdentityVec();
2177 }
2178
2179 ✗ if (chromaGBlur != 0.0) {
2180 ✗ filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
2181 ✗ filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2182 } else {
2183 ✗ filter->chrH = sws_getIdentityVec();
2184 ✗ filter->chrV = sws_getIdentityVec();
2185 }
2186
2187 ✗ if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2188 ✗ goto fail;
2189
2190 ✗ if (chromaSharpen != 0.0) {
2191 ✗ SwsVector *id = sws_getIdentityVec();
2192 ✗ if (!id)
2193 ✗ goto fail;
2194 ✗ sws_scaleVec(filter->chrH, -chromaSharpen);
2195 ✗ sws_scaleVec(filter->chrV, -chromaSharpen);
2196 ✗ sws_addVec(filter->chrH, id);
2197 ✗ sws_addVec(filter->chrV, id);
2198 ✗ sws_freeVec(id);
2199 }
2200
2201 ✗ if (lumaSharpen != 0.0) {
2202 ✗ SwsVector *id = sws_getIdentityVec();
2203 ✗ if (!id)
2204 ✗ goto fail;
2205 ✗ sws_scaleVec(filter->lumH, -lumaSharpen);
2206 ✗ sws_scaleVec(filter->lumV, -lumaSharpen);
2207 ✗ sws_addVec(filter->lumH, id);
2208 ✗ sws_addVec(filter->lumV, id);
2209 ✗ sws_freeVec(id);
2210 }
2211
2212 ✗ if (chromaHShift != 0.0)
2213 ✗ sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2214
2215 ✗ if (chromaVShift != 0.0)
2216 ✗ sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2217
2218 ✗ sws_normalizeVec(filter->chrH, 1.0);
2219 ✗ sws_normalizeVec(filter->chrV, 1.0);
2220 ✗ sws_normalizeVec(filter->lumH, 1.0);
2221 ✗ sws_normalizeVec(filter->lumV, 1.0);
2222
2223 ✗ if (isnan_vec(filter->chrH) ||
2224 ✗ isnan_vec(filter->chrV) ||
2225 ✗ isnan_vec(filter->lumH) ||
2226 ✗ isnan_vec(filter->lumV))
2227 ✗ goto fail;
2228
2229 ✗ if (verbose)
2230 ✗ sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2231 ✗ if (verbose)
2232 ✗ sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2233
2234 ✗ return filter;
2235
2236 ✗ fail:
2237 ✗ sws_freeVec(filter->lumH);
2238 ✗ sws_freeVec(filter->lumV);
2239 ✗ sws_freeVec(filter->chrH);
2240 ✗ sws_freeVec(filter->chrV);
2241 ✗ av_freep(&filter);
2242 ✗ return NULL;
2243 }
2244
2245 347745 void sws_freeContext(SwsContext *sws)
2246 {
2247 347745 SwsInternal *c = sws_internal(sws);
2248 int i;
2249
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 347745 if (!c)
2250 260809 return;
2251
2252
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 260808 for (i = 0; i < FF_ARRAY_ELEMS(c->graph); i++)
2253 173872 ff_sws_graph_free(&c->graph[i]);
2254
2255
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 110018 for (i = 0; i < c->nb_slice_ctx; i++)
2256 23082 sws_freeContext(c->slice_ctx[i]);
2257 86936 av_freep(&c->slice_ctx);
2258 86936 av_freep(&c->slice_err);
2259
2260 86936 avpriv_slicethread_free(&c->slicethread);
2261
2262
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 434680 for (i = 0; i < 4; i++)
2263 347744 av_freep(&c->dither_error[i]);
2264
2265 86936 av_frame_free(&c->frame_src);
2266 86936 av_frame_free(&c->frame_dst);
2267
2268 86936 av_freep(&c->src_ranges.ranges);
2269
2270 86936 av_freep(&c->vLumFilter);
2271 86936 av_freep(&c->vChrFilter);
2272 86936 av_freep(&c->hLumFilter);
2273 86936 av_freep(&c->hChrFilter);
2274 #if HAVE_ALTIVEC
2275 av_freep(&c->vYCoeffsBank);
2276 av_freep(&c->vCCoeffsBank);
2277 #endif
2278
2279 86936 av_freep(&c->vLumFilterPos);
2280 86936 av_freep(&c->vChrFilterPos);
2281 86936 av_freep(&c->hLumFilterPos);
2282 86936 av_freep(&c->hChrFilterPos);
2283
2284 #if HAVE_MMX_INLINE
2285 #if USE_MMAP
2286
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 86936 if (c->lumMmxextFilterCode)
2287 ✗ munmap(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2288
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 86936 if (c->chrMmxextFilterCode)
2289 ✗ munmap(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2290 #elif HAVE_VIRTUALALLOC
2291 if (c->lumMmxextFilterCode)
2292 VirtualFree(c->lumMmxextFilterCode, 0, MEM_RELEASE);
2293 if (c->chrMmxextFilterCode)
2294 VirtualFree(c->chrMmxextFilterCode, 0, MEM_RELEASE);
2295 #else
2296 av_free(c->lumMmxextFilterCode);
2297 av_free(c->chrMmxextFilterCode);
2298 #endif
2299 86936 c->lumMmxextFilterCode = NULL;
2300 86936 c->chrMmxextFilterCode = NULL;
2301 #endif /* HAVE_MMX_INLINE */
2302
2303 86936 av_freep(&c->yuvTable);
2304 86936 av_freep(&c->formatConvBuffer);
2305
2306 86936 sws_freeContext(c->cascaded_context[0]);
2307 86936 sws_freeContext(c->cascaded_context[1]);
2308 86936 sws_freeContext(c->cascaded_context[2]);
2309 86936 memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2310 86936 av_freep(&c->cascaded_tmp[0][0]);
2311 86936 av_freep(&c->cascaded_tmp[1][0]);
2312
2313 86936 av_freep(&c->gamma);
2314 86936 av_freep(&c->inv_gamma);
2315 #if CONFIG_SMALL
2316 av_freep(&c->xyz2rgb.gamma.in);
2317 #endif
2318
2319 86936 av_freep(&c->rgb0_scratch);
2320 86936 av_freep(&c->xyz_scratch);
2321
2322 86936 ff_free_filters(c);
2323
2324 86936 av_free(c);
2325 }
2326
2327 43400 void sws_free_context(SwsContext **pctx)
2328 {
2329 43400 SwsContext *ctx = *pctx;
2330
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 43400 if (!ctx)
2331 ✗ return;
2332
2333 43400 sws_freeContext(ctx);
2334 43400 *pctx = NULL;
2335 }
2336
2337 ✗ SwsContext *sws_getCachedContext(SwsContext *prev, int srcW,
2338 int srcH, enum AVPixelFormat srcFormat,
2339 int dstW, int dstH,
2340 enum AVPixelFormat dstFormat, int flags,
2341 SwsFilter *srcFilter,
2342 SwsFilter *dstFilter,
2343 const double *param)
2344 {
2345 SwsContext *sws;
2346 static const double default_param[2] = { SWS_PARAM_DEFAULT,
2347 SWS_PARAM_DEFAULT };
2348
2349 ✗ if (!param)
2350 ✗ param = default_param;
2351
2352 ✗ if (prev && (prev->src_w == srcW &&
2353 ✗ prev->src_h == srcH &&
2354 ✗ prev->src_format == srcFormat &&
2355 ✗ prev->dst_w == dstW &&
2356 ✗ prev->dst_h == dstH &&
2357 ✗ prev->dst_format == dstFormat &&
2358 ✗ prev->flags == flags &&
2359 ✗ prev->scaler_params[0] == param[0] &&
2360 ✗ prev->scaler_params[1] == param[1])) {
2361 ✗ return prev;
2362 }
2363
2364 ✗ if (!(sws = sws_alloc_context())) {
2365 ✗ sws_free_context(&prev);
2366 ✗ return NULL;
2367 }
2368
2369 ✗ if (prev) {
2370 ✗ av_opt_copy(sws, prev);
2371 ✗ sws_free_context(&prev);
2372 }
2373
2374 ✗ sws->src_w = srcW;
2375 ✗ sws->src_h = srcH;
2376 ✗ sws->src_format = srcFormat;
2377 ✗ sws->dst_w = dstW;
2378 ✗ sws->dst_h = dstH;
2379 ✗ sws->dst_format = dstFormat;
2380 ✗ sws->flags = flags;
2381 ✗ sws->scaler_params[0] = param[0];
2382 ✗ sws->scaler_params[1] = param[1];
2383
2384 ✗ if (sws_init_context(sws, srcFilter, dstFilter) < 0)
2385 ✗ sws_free_context(&sws);
2386
2387 ✗ return sws;
2388 }
2389
2390 16900 int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
2391 {
2392 Range *tmp;
2393 unsigned int idx;
2394
2395 /* find the first existing range after the new one */
2396
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 16900 for (idx = 0; idx < rl->nb_ranges; idx++)
2397 ✗ if (rl->ranges[idx].start > start)
2398 ✗ break;
2399
2400 /* check for overlap */
2401
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 16900 if (idx > 0) {
2402 ✗ Range *prev = &rl->ranges[idx - 1];
2403 ✗ if (prev->start + prev->len > start)
2404 ✗ return AVERROR(EINVAL);
2405 }
2406
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 16900 if (idx < rl->nb_ranges) {
2407 ✗ Range *next = &rl->ranges[idx];
2408 ✗ if (start + len > next->start)
2409 ✗ return AVERROR(EINVAL);
2410 }
2411
2412 16900 tmp = av_fast_realloc(rl->ranges, &rl->ranges_allocated,
2413 16900 (rl->nb_ranges + 1) * sizeof(*rl->ranges));
2414
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 16900 if (!tmp)
2415 ✗ return AVERROR(ENOMEM);
2416 16900 rl->ranges = tmp;
2417
2418 16900 memmove(rl->ranges + idx + 1, rl->ranges + idx,
2419 16900 sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2420 16900 rl->ranges[idx].start = start;
2421 16900 rl->ranges[idx].len = len;
2422 16900 rl->nb_ranges++;
2423
2424 /* merge ranges */
2425
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 16900 if (idx > 0) {
2426 ✗ Range *prev = &rl->ranges[idx - 1];
2427 ✗ Range *cur = &rl->ranges[idx];
2428 ✗ if (prev->start + prev->len == cur->start) {
2429 ✗ prev->len += cur->len;
2430 ✗ memmove(rl->ranges + idx - 1, rl->ranges + idx,
2431 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2432 ✗ rl->nb_ranges--;
2433 ✗ idx--;
2434 }
2435 }
2436
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 16900 if (idx < rl->nb_ranges - 1) {
2437 ✗ Range *cur = &rl->ranges[idx];
2438 ✗ Range *next = &rl->ranges[idx + 1];
2439 ✗ if (cur->start + cur->len == next->start) {
2440 ✗ cur->len += next->len;
2441 ✗ memmove(rl->ranges + idx, rl->ranges + idx + 1,
2442 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx - 1));
2443 ✗ rl->nb_ranges--;
2444 }
2445 }
2446
2447 16900 return 0;
2448 }
2449