FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/utils.c
Date: 2024-07-26 21:54:09
Exec Total Coverage
Lines: 770 1322 58.2%
Functions: 24 44 54.5%
Branches: 634 1173 54.0%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "config.h"
22
23 #define _DEFAULT_SOURCE
24 #define _SVID_SOURCE // needed for MAP_ANONYMOUS
25 #define _DARWIN_C_SOURCE // needed for MAP_ANON
26 #include <inttypes.h>
27 #include <math.h>
28 #include <stdio.h>
29 #include <string.h>
30 #if HAVE_MMAP
31 #include <sys/mman.h>
32 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
33 #define MAP_ANONYMOUS MAP_ANON
34 #endif
35 #endif
36 #if HAVE_VIRTUALALLOC
37 #include <windows.h>
38 #endif
39
40 #include "libavutil/attributes.h"
41 #include "libavutil/avassert.h"
42 #include "libavutil/cpu.h"
43 #include "libavutil/emms.h"
44 #include "libavutil/imgutils.h"
45 #include "libavutil/intreadwrite.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/mathematics.h"
48 #include "libavutil/mem.h"
49 #include "libavutil/opt.h"
50 #include "libavutil/pixdesc.h"
51 #include "libavutil/slicethread.h"
52 #include "libavutil/thread.h"
53 #include "libavutil/aarch64/cpu.h"
54 #include "libavutil/ppc/cpu.h"
55 #include "libavutil/x86/asm.h"
56 #include "libavutil/x86/cpu.h"
57 #include "libavutil/loongarch/cpu.h"
58
59 #include "rgb2rgb.h"
60 #include "swscale.h"
61 #include "swscale_internal.h"
62
63 typedef struct FormatEntry {
64 uint8_t is_supported_in :1;
65 uint8_t is_supported_out :1;
66 uint8_t is_supported_endianness :1;
67 } FormatEntry;
68
69 static const FormatEntry format_entries[] = {
70 [AV_PIX_FMT_YUV420P] = { 1, 1 },
71 [AV_PIX_FMT_YUYV422] = { 1, 1 },
72 [AV_PIX_FMT_RGB24] = { 1, 1 },
73 [AV_PIX_FMT_BGR24] = { 1, 1 },
74 [AV_PIX_FMT_YUV422P] = { 1, 1 },
75 [AV_PIX_FMT_YUV444P] = { 1, 1 },
76 [AV_PIX_FMT_YUV410P] = { 1, 1 },
77 [AV_PIX_FMT_YUV411P] = { 1, 1 },
78 [AV_PIX_FMT_GRAY8] = { 1, 1 },
79 [AV_PIX_FMT_MONOWHITE] = { 1, 1 },
80 [AV_PIX_FMT_MONOBLACK] = { 1, 1 },
81 [AV_PIX_FMT_PAL8] = { 1, 0 },
82 [AV_PIX_FMT_YUVJ420P] = { 1, 1 },
83 [AV_PIX_FMT_YUVJ411P] = { 1, 1 },
84 [AV_PIX_FMT_YUVJ422P] = { 1, 1 },
85 [AV_PIX_FMT_YUVJ444P] = { 1, 1 },
86 [AV_PIX_FMT_YVYU422] = { 1, 1 },
87 [AV_PIX_FMT_UYVY422] = { 1, 1 },
88 [AV_PIX_FMT_UYYVYY411] = { 0, 0 },
89 [AV_PIX_FMT_BGR8] = { 1, 1 },
90 [AV_PIX_FMT_BGR4] = { 0, 1 },
91 [AV_PIX_FMT_BGR4_BYTE] = { 1, 1 },
92 [AV_PIX_FMT_RGB8] = { 1, 1 },
93 [AV_PIX_FMT_RGB4] = { 0, 1 },
94 [AV_PIX_FMT_RGB4_BYTE] = { 1, 1 },
95 [AV_PIX_FMT_NV12] = { 1, 1 },
96 [AV_PIX_FMT_NV21] = { 1, 1 },
97 [AV_PIX_FMT_ARGB] = { 1, 1 },
98 [AV_PIX_FMT_RGBA] = { 1, 1 },
99 [AV_PIX_FMT_ABGR] = { 1, 1 },
100 [AV_PIX_FMT_BGRA] = { 1, 1 },
101 [AV_PIX_FMT_0RGB] = { 1, 1 },
102 [AV_PIX_FMT_RGB0] = { 1, 1 },
103 [AV_PIX_FMT_0BGR] = { 1, 1 },
104 [AV_PIX_FMT_BGR0] = { 1, 1 },
105 [AV_PIX_FMT_GRAY9BE] = { 1, 1 },
106 [AV_PIX_FMT_GRAY9LE] = { 1, 1 },
107 [AV_PIX_FMT_GRAY10BE] = { 1, 1 },
108 [AV_PIX_FMT_GRAY10LE] = { 1, 1 },
109 [AV_PIX_FMT_GRAY12BE] = { 1, 1 },
110 [AV_PIX_FMT_GRAY12LE] = { 1, 1 },
111 [AV_PIX_FMT_GRAY14BE] = { 1, 1 },
112 [AV_PIX_FMT_GRAY14LE] = { 1, 1 },
113 [AV_PIX_FMT_GRAY16BE] = { 1, 1 },
114 [AV_PIX_FMT_GRAY16LE] = { 1, 1 },
115 [AV_PIX_FMT_YUV440P] = { 1, 1 },
116 [AV_PIX_FMT_YUVJ440P] = { 1, 1 },
117 [AV_PIX_FMT_YUV440P10LE] = { 1, 1 },
118 [AV_PIX_FMT_YUV440P10BE] = { 1, 1 },
119 [AV_PIX_FMT_YUV440P12LE] = { 1, 1 },
120 [AV_PIX_FMT_YUV440P12BE] = { 1, 1 },
121 [AV_PIX_FMT_YUVA420P] = { 1, 1 },
122 [AV_PIX_FMT_YUVA422P] = { 1, 1 },
123 [AV_PIX_FMT_YUVA444P] = { 1, 1 },
124 [AV_PIX_FMT_YUVA420P9BE] = { 1, 1 },
125 [AV_PIX_FMT_YUVA420P9LE] = { 1, 1 },
126 [AV_PIX_FMT_YUVA422P9BE] = { 1, 1 },
127 [AV_PIX_FMT_YUVA422P9LE] = { 1, 1 },
128 [AV_PIX_FMT_YUVA444P9BE] = { 1, 1 },
129 [AV_PIX_FMT_YUVA444P9LE] = { 1, 1 },
130 [AV_PIX_FMT_YUVA420P10BE]= { 1, 1 },
131 [AV_PIX_FMT_YUVA420P10LE]= { 1, 1 },
132 [AV_PIX_FMT_YUVA422P10BE]= { 1, 1 },
133 [AV_PIX_FMT_YUVA422P10LE]= { 1, 1 },
134 [AV_PIX_FMT_YUVA444P10BE]= { 1, 1 },
135 [AV_PIX_FMT_YUVA444P10LE]= { 1, 1 },
136 [AV_PIX_FMT_YUVA420P16BE]= { 1, 1 },
137 [AV_PIX_FMT_YUVA420P16LE]= { 1, 1 },
138 [AV_PIX_FMT_YUVA422P16BE]= { 1, 1 },
139 [AV_PIX_FMT_YUVA422P16LE]= { 1, 1 },
140 [AV_PIX_FMT_YUVA444P16BE]= { 1, 1 },
141 [AV_PIX_FMT_YUVA444P16LE]= { 1, 1 },
142 [AV_PIX_FMT_RGB48BE] = { 1, 1 },
143 [AV_PIX_FMT_RGB48LE] = { 1, 1 },
144 [AV_PIX_FMT_RGBA64BE] = { 1, 1, 1 },
145 [AV_PIX_FMT_RGBA64LE] = { 1, 1, 1 },
146 [AV_PIX_FMT_RGB565BE] = { 1, 1 },
147 [AV_PIX_FMT_RGB565LE] = { 1, 1 },
148 [AV_PIX_FMT_RGB555BE] = { 1, 1 },
149 [AV_PIX_FMT_RGB555LE] = { 1, 1 },
150 [AV_PIX_FMT_BGR565BE] = { 1, 1 },
151 [AV_PIX_FMT_BGR565LE] = { 1, 1 },
152 [AV_PIX_FMT_BGR555BE] = { 1, 1 },
153 [AV_PIX_FMT_BGR555LE] = { 1, 1 },
154 [AV_PIX_FMT_YUV420P16LE] = { 1, 1 },
155 [AV_PIX_FMT_YUV420P16BE] = { 1, 1 },
156 [AV_PIX_FMT_YUV422P16LE] = { 1, 1 },
157 [AV_PIX_FMT_YUV422P16BE] = { 1, 1 },
158 [AV_PIX_FMT_YUV444P16LE] = { 1, 1 },
159 [AV_PIX_FMT_YUV444P16BE] = { 1, 1 },
160 [AV_PIX_FMT_RGB444LE] = { 1, 1 },
161 [AV_PIX_FMT_RGB444BE] = { 1, 1 },
162 [AV_PIX_FMT_BGR444LE] = { 1, 1 },
163 [AV_PIX_FMT_BGR444BE] = { 1, 1 },
164 [AV_PIX_FMT_YA8] = { 1, 1 },
165 [AV_PIX_FMT_YA16BE] = { 1, 1 },
166 [AV_PIX_FMT_YA16LE] = { 1, 1 },
167 [AV_PIX_FMT_BGR48BE] = { 1, 1 },
168 [AV_PIX_FMT_BGR48LE] = { 1, 1 },
169 [AV_PIX_FMT_BGRA64BE] = { 1, 1, 1 },
170 [AV_PIX_FMT_BGRA64LE] = { 1, 1, 1 },
171 [AV_PIX_FMT_YUV420P9BE] = { 1, 1 },
172 [AV_PIX_FMT_YUV420P9LE] = { 1, 1 },
173 [AV_PIX_FMT_YUV420P10BE] = { 1, 1 },
174 [AV_PIX_FMT_YUV420P10LE] = { 1, 1 },
175 [AV_PIX_FMT_YUV420P12BE] = { 1, 1 },
176 [AV_PIX_FMT_YUV420P12LE] = { 1, 1 },
177 [AV_PIX_FMT_YUV420P14BE] = { 1, 1 },
178 [AV_PIX_FMT_YUV420P14LE] = { 1, 1 },
179 [AV_PIX_FMT_YUV422P9BE] = { 1, 1 },
180 [AV_PIX_FMT_YUV422P9LE] = { 1, 1 },
181 [AV_PIX_FMT_YUV422P10BE] = { 1, 1 },
182 [AV_PIX_FMT_YUV422P10LE] = { 1, 1 },
183 [AV_PIX_FMT_YUV422P12BE] = { 1, 1 },
184 [AV_PIX_FMT_YUV422P12LE] = { 1, 1 },
185 [AV_PIX_FMT_YUV422P14BE] = { 1, 1 },
186 [AV_PIX_FMT_YUV422P14LE] = { 1, 1 },
187 [AV_PIX_FMT_YUV444P9BE] = { 1, 1 },
188 [AV_PIX_FMT_YUV444P9LE] = { 1, 1 },
189 [AV_PIX_FMT_YUV444P10BE] = { 1, 1 },
190 [AV_PIX_FMT_YUV444P10LE] = { 1, 1 },
191 [AV_PIX_FMT_YUV444P12BE] = { 1, 1 },
192 [AV_PIX_FMT_YUV444P12LE] = { 1, 1 },
193 [AV_PIX_FMT_YUV444P14BE] = { 1, 1 },
194 [AV_PIX_FMT_YUV444P14LE] = { 1, 1 },
195 [AV_PIX_FMT_GBRP] = { 1, 1 },
196 [AV_PIX_FMT_GBRP9LE] = { 1, 1 },
197 [AV_PIX_FMT_GBRP9BE] = { 1, 1 },
198 [AV_PIX_FMT_GBRP10LE] = { 1, 1 },
199 [AV_PIX_FMT_GBRP10BE] = { 1, 1 },
200 [AV_PIX_FMT_GBRAP10LE] = { 1, 1 },
201 [AV_PIX_FMT_GBRAP10BE] = { 1, 1 },
202 [AV_PIX_FMT_GBRP12LE] = { 1, 1 },
203 [AV_PIX_FMT_GBRP12BE] = { 1, 1 },
204 [AV_PIX_FMT_GBRAP12LE] = { 1, 1 },
205 [AV_PIX_FMT_GBRAP12BE] = { 1, 1 },
206 [AV_PIX_FMT_GBRP14LE] = { 1, 1 },
207 [AV_PIX_FMT_GBRP14BE] = { 1, 1 },
208 [AV_PIX_FMT_GBRAP14LE] = { 1, 1 },
209 [AV_PIX_FMT_GBRAP14BE] = { 1, 1 },
210 [AV_PIX_FMT_GBRP16LE] = { 1, 1 },
211 [AV_PIX_FMT_GBRP16BE] = { 1, 1 },
212 [AV_PIX_FMT_GBRPF32LE] = { 1, 1 },
213 [AV_PIX_FMT_GBRPF32BE] = { 1, 1 },
214 [AV_PIX_FMT_GBRAPF32LE] = { 1, 1 },
215 [AV_PIX_FMT_GBRAPF32BE] = { 1, 1 },
216 [AV_PIX_FMT_GBRAP] = { 1, 1 },
217 [AV_PIX_FMT_GBRAP16LE] = { 1, 1 },
218 [AV_PIX_FMT_GBRAP16BE] = { 1, 1 },
219 [AV_PIX_FMT_BAYER_BGGR8] = { 1, 0 },
220 [AV_PIX_FMT_BAYER_RGGB8] = { 1, 0 },
221 [AV_PIX_FMT_BAYER_GBRG8] = { 1, 0 },
222 [AV_PIX_FMT_BAYER_GRBG8] = { 1, 0 },
223 [AV_PIX_FMT_BAYER_BGGR16LE] = { 1, 0 },
224 [AV_PIX_FMT_BAYER_BGGR16BE] = { 1, 0 },
225 [AV_PIX_FMT_BAYER_RGGB16LE] = { 1, 0 },
226 [AV_PIX_FMT_BAYER_RGGB16BE] = { 1, 0 },
227 [AV_PIX_FMT_BAYER_GBRG16LE] = { 1, 0 },
228 [AV_PIX_FMT_BAYER_GBRG16BE] = { 1, 0 },
229 [AV_PIX_FMT_BAYER_GRBG16LE] = { 1, 0 },
230 [AV_PIX_FMT_BAYER_GRBG16BE] = { 1, 0 },
231 [AV_PIX_FMT_XYZ12BE] = { 1, 1, 1 },
232 [AV_PIX_FMT_XYZ12LE] = { 1, 1, 1 },
233 [AV_PIX_FMT_AYUV64LE] = { 1, 1},
234 [AV_PIX_FMT_P010LE] = { 1, 1 },
235 [AV_PIX_FMT_P010BE] = { 1, 1 },
236 [AV_PIX_FMT_P012LE] = { 1, 1 },
237 [AV_PIX_FMT_P012BE] = { 1, 1 },
238 [AV_PIX_FMT_P016LE] = { 1, 1 },
239 [AV_PIX_FMT_P016BE] = { 1, 1 },
240 [AV_PIX_FMT_GRAYF32LE] = { 1, 1 },
241 [AV_PIX_FMT_GRAYF32BE] = { 1, 1 },
242 [AV_PIX_FMT_YUVA422P12BE] = { 1, 1 },
243 [AV_PIX_FMT_YUVA422P12LE] = { 1, 1 },
244 [AV_PIX_FMT_YUVA444P12BE] = { 1, 1 },
245 [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
246 [AV_PIX_FMT_NV24] = { 1, 1 },
247 [AV_PIX_FMT_NV42] = { 1, 1 },
248 [AV_PIX_FMT_Y210LE] = { 1, 1 },
249 [AV_PIX_FMT_Y212LE] = { 1, 1 },
250 [AV_PIX_FMT_X2RGB10LE] = { 1, 1 },
251 [AV_PIX_FMT_X2BGR10LE] = { 1, 1 },
252 [AV_PIX_FMT_P210BE] = { 1, 1 },
253 [AV_PIX_FMT_P210LE] = { 1, 1 },
254 [AV_PIX_FMT_P212BE] = { 1, 1 },
255 [AV_PIX_FMT_P212LE] = { 1, 1 },
256 [AV_PIX_FMT_P410BE] = { 1, 1 },
257 [AV_PIX_FMT_P410LE] = { 1, 1 },
258 [AV_PIX_FMT_P412BE] = { 1, 1 },
259 [AV_PIX_FMT_P412LE] = { 1, 1 },
260 [AV_PIX_FMT_P216BE] = { 1, 1 },
261 [AV_PIX_FMT_P216LE] = { 1, 1 },
262 [AV_PIX_FMT_P416BE] = { 1, 1 },
263 [AV_PIX_FMT_P416LE] = { 1, 1 },
264 [AV_PIX_FMT_NV16] = { 1, 1 },
265 [AV_PIX_FMT_VUYA] = { 1, 1 },
266 [AV_PIX_FMT_VUYX] = { 1, 1 },
267 [AV_PIX_FMT_RGBAF16BE] = { 1, 0 },
268 [AV_PIX_FMT_RGBAF16LE] = { 1, 0 },
269 [AV_PIX_FMT_XV30LE] = { 1, 1 },
270 [AV_PIX_FMT_XV36LE] = { 1, 1 },
271 };
272
273 /**
274 * Allocate and return an SwsContext without performing initialization.
275 */
276 1653 static SwsContext *alloc_set_opts(int srcW, int srcH, enum AVPixelFormat srcFormat,
277 int dstW, int dstH, enum AVPixelFormat dstFormat,
278 int flags, const double *param)
279 {
280 1653 SwsContext *c = sws_alloc_context();
281
282
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 1653 if (!c)
283 ✗ return NULL;
284
285 1653 c->flags = flags;
286 1653 c->srcW = srcW;
287 1653 c->srcH = srcH;
288 1653 c->dstW = dstW;
289 1653 c->dstH = dstH;
290 1653 c->srcFormat = srcFormat;
291 1653 c->dstFormat = dstFormat;
292
293
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 1653 if (param) {
294 18 c->param[0] = param[0];
295 18 c->param[1] = param[1];
296 }
297
298 1653 return c;
299 }
300
301 10526 int ff_shuffle_filter_coefficients(SwsContext *c, int *filterPos,
302 int filterSize, int16_t *filter,
303 int dstW)
304 {
305 #if ARCH_X86_64
306 int i, j, k;
307 10526 int cpu_flags = av_get_cpu_flags();
308
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 10526 if (!filter)
309 ✗ return 0;
310
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 10526 if (EXTERNAL_AVX2_FAST(cpu_flags) && !(cpu_flags & AV_CPU_FLAG_SLOW_GATHER)) {
311
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 216 if ((c->srcBpc == 8) && (c->dstBpc <= 14)) {
312 36 int16_t *filterCopy = NULL;
313
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 36 if (filterSize > 4) {
314
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 30 if (!FF_ALLOC_TYPED_ARRAY(filterCopy, dstW * filterSize))
315 ✗ return AVERROR(ENOMEM);
316 30 memcpy(filterCopy, filter, dstW * filterSize * sizeof(int16_t));
317 }
318 // Do not swap filterPos for pixels which won't be processed by
319 // the main loop.
320
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 432 for (i = 0; i + 16 <= dstW; i += 16) {
321 396 FFSWAP(int, filterPos[i + 2], filterPos[i + 4]);
322 396 FFSWAP(int, filterPos[i + 3], filterPos[i + 5]);
323 396 FFSWAP(int, filterPos[i + 10], filterPos[i + 12]);
324 396 FFSWAP(int, filterPos[i + 11], filterPos[i + 13]);
325 }
326
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 36 if (filterSize > 4) {
327 // 16 pixels are processed at a time.
328
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 360 for (i = 0; i + 16 <= dstW; i += 16) {
329 // 4 filter coeffs are processed at a time.
330
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 2112 for (k = 0; k + 4 <= filterSize; k += 4) {
331
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 30294 for (j = 0; j < 16; ++j) {
332 28512 int from = (i + j) * filterSize + k;
333 28512 int to = i * filterSize + j * 4 + k * 16;
334 28512 memcpy(&filter[to], &filterCopy[from], 4 * sizeof(int16_t));
335 }
336 }
337 }
338 // 4 pixels are processed at a time in the tail.
339
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 50 for (; i < dstW; i += 4) {
340 // 4 filter coeffs are processed at a time.
341 20 int rem = dstW - i >= 4 ? 4 : dstW - i;
342
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 128 for (k = 0; k + 4 <= filterSize; k += 4) {
343
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 540 for (j = 0; j < rem; ++j) {
344 432 int from = (i + j) * filterSize + k;
345 432 int to = i * filterSize + j * 4 + k * 4;
346 432 memcpy(&filter[to], &filterCopy[from], 4 * sizeof(int16_t));
347 }
348 }
349 }
350 }
351 36 av_free(filterCopy);
352 }
353 }
354 #endif
355 10526 return 0;
356 }
357
358 908173 int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
359 {
360 908173 return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
361
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 908173 format_entries[pix_fmt].is_supported_in : 0;
362 }
363
364 908173 int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
365 {
366 908173 return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
367
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 908173 format_entries[pix_fmt].is_supported_out : 0;
368 }
369
370 291657 int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt)
371 {
372 291657 return (unsigned)pix_fmt < FF_ARRAY_ELEMS(format_entries) ?
373
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 291657 format_entries[pix_fmt].is_supported_endianness : 0;
374 }
375
376 ✗ static double getSplineCoeff(double a, double b, double c, double d,
377 double dist)
378 {
379 ✗ if (dist <= 1.0)
380 ✗ return ((d * dist + c) * dist + b) * dist + a;
381 else
382 ✗ return getSplineCoeff(0.0,
383 ✗ b + 2.0 * c + 3.0 * d,
384 ✗ c + 3.0 * d,
385 ✗ -b - 3.0 * c - 6.0 * d,
386 dist - 1.0);
387 }
388
389 38360 static av_cold int get_local_pos(SwsContext *s, int chr_subsample, int pos, int dir)
390 {
391
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 38360 if (pos == -1 || pos <= -513) {
392 14575 pos = (128 << chr_subsample) - 128;
393 }
394 38360 pos += 128; // relative to ideal left edge
395 38360 return pos >> chr_subsample;
396 }
397
398 typedef struct {
399 int flag; ///< flag associated to the algorithm
400 const char *description; ///< human-readable description
401 int size_factor; ///< size factor used when initing the filters
402 } ScaleAlgorithm;
403
404 static const ScaleAlgorithm scale_algorithms[] = {
405 { SWS_AREA, "area averaging", 1 /* downscale only, for upscale it is bilinear */ },
406 { SWS_BICUBIC, "bicubic", 4 },
407 { SWS_BICUBLIN, "luma bicubic / chroma bilinear", -1 },
408 { SWS_BILINEAR, "bilinear", 2 },
409 { SWS_FAST_BILINEAR, "fast bilinear", -1 },
410 { SWS_GAUSS, "Gaussian", 8 /* infinite ;) */ },
411 { SWS_LANCZOS, "Lanczos", -1 /* custom */ },
412 { SWS_POINT, "nearest neighbor / point", -1 },
413 { SWS_SINC, "sinc", 20 /* infinite ;) */ },
414 { SWS_SPLINE, "bicubic spline", 20 /* infinite :)*/ },
415 { SWS_X, "experimental", 8 },
416 };
417
418 19180 static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
419 int *outFilterSize, int xInc, int srcW,
420 int dstW, int filterAlign, int one,
421 int flags, int cpu_flags,
422 SwsVector *srcFilter, SwsVector *dstFilter,
423 double param[2], int srcPos, int dstPos)
424 {
425 int i;
426 int filterSize;
427 int filter2Size;
428 int minFilterSize;
429 19180 int64_t *filter = NULL;
430 19180 int64_t *filter2 = NULL;
431 19180 const int64_t fone = 1LL << (54 - FFMIN(av_log2(srcW/dstW), 8));
432 19180 int ret = -1;
433
434 19180 emms_c(); // FIXME should not be required but IS (even for non-MMX versions)
435
436 // NOTE: the +3 is for the MMX(+1) / SSE(+3) scaler which reads over the end
437
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 19180 if (!FF_ALLOC_TYPED_ARRAY(*filterPos, dstW + 3))
438 ✗ goto nomem;
439
440
6/8
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 30360 if (FFABS(xInc - 0x10000) < 10 && srcPos == dstPos) { // unscaled
441 int i;
442 11180 filterSize = 1;
443
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 11180 if (!FF_ALLOCZ_TYPED_ARRAY(filter, dstW * filterSize))
444 ✗ goto nomem;
445
446
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✓ Branch 1 taken 11180 times.
 2887054 for (i = 0; i < dstW; i++) {
447 2875874 filter[i * filterSize] = fone;
448 2875874 (*filterPos)[i] = i;
449 }
450
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 8000 } else if (flags & SWS_POINT) { // lame looking point sampling mode
451 int i;
452 int64_t xDstInSrc;
453 252 filterSize = 1;
454
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✓ Branch 2 taken 252 times.
 252 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
455 ✗ goto nomem;
456
457 252 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
458
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✓ Branch 0 taken 78125 times.
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 78377 for (i = 0; i < dstW; i++) {
459 78125 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
460
461 78125 (*filterPos)[i] = xx;
462 78125 filter[i] = fone;
463 78125 xDstInSrc += xInc;
464 }
465
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✓ Branch 3 taken 84 times.
 7748 } else if ((xInc <= (1 << 16) && (flags & SWS_AREA)) ||
466
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 7748 (flags & SWS_FAST_BILINEAR)) { // bilinear upscale
467 int i;
468 int64_t xDstInSrc;
469 84 filterSize = 2;
470
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✗ Branch 1 not taken.
✓ Branch 2 taken 84 times.
 84 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
471 ✗ goto nomem;
472
473 84 xDstInSrc = ((dstPos*(int64_t)xInc)>>8) - ((srcPos*0x8000LL)>>7);
474
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✓ Branch 0 taken 142992 times.
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 143076 for (i = 0; i < dstW; i++) {
475 142992 int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
476 int j;
477
478 142992 (*filterPos)[i] = xx;
479 // bilinear upscale / linear interpolate / area averaging
480
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 428976 for (j = 0; j < filterSize; j++) {
481 285984 int64_t coeff = fone - FFABS((int64_t)xx * (1 << 16) - xDstInSrc) * (fone >> 16);
482
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 285984 if (coeff < 0)
483 ✗ coeff = 0;
484 285984 filter[i * filterSize + j] = coeff;
485 285984 xx++;
486 }
487 142992 xDstInSrc += xInc;
488 }
489 } else {
490 int64_t xDstInSrc;
491 7664 int sizeFactor = -1;
492
493
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✗ Branch 1 not taken.
 15820 for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
494
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 15820 if (flags & scale_algorithms[i].flag && scale_algorithms[i].size_factor > 0) {
495 7664 sizeFactor = scale_algorithms[i].size_factor;
496 7664 break;
497 }
498 }
499
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 7664 if (flags & SWS_LANCZOS)
500 ✗ sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
501
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 7664 av_assert0(sizeFactor > 0);
502
503
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 7664 if (xInc <= 1 << 16)
504 5055 filterSize = 1 + sizeFactor; // upscale
505 else
506 2609 filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
507
508
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 7664 filterSize = FFMIN(filterSize, srcW - 2);
509 7664 filterSize = FFMAX(filterSize, 1);
510
511
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✓ Branch 2 taken 7664 times.
 7664 if (!FF_ALLOC_TYPED_ARRAY(filter, dstW * filterSize))
512 ✗ goto nomem;
513 7664 xDstInSrc = ((dstPos*(int64_t)xInc)>>7) - ((srcPos*0x10000LL)>>7);
514
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 2246507 for (i = 0; i < dstW; i++) {
515 2238843 int xx = (xDstInSrc - (filterSize - 2) * (1LL<<16)) / (1 << 17);
516 int j;
517 2238843 (*filterPos)[i] = xx;
518
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 15217241 for (j = 0; j < filterSize; j++) {
519 12978398 int64_t d = (FFABS(((int64_t)xx * (1 << 17)) - xDstInSrc)) << 13;
520 double floatd;
521 int64_t coeff;
522
523
2/2
✓ Branch 0 taken 3566543 times.
✓ Branch 1 taken 9411855 times.
 12978398 if (xInc > 1 << 16)
524 3566543 d = d * dstW / srcW;
525 12978398 floatd = d * (1.0 / (1 << 30));
526
527
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 12978398 if (flags & SWS_BICUBIC) {
528
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 12324980 int64_t B = (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1 << 24);
529
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✓ Branch 1 taken 12324980 times.
 12324980 int64_t C = (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1 << 24);
530
531
2/2
✓ Branch 0 taken 2294144 times.
✓ Branch 1 taken 10030836 times.
 12324980 if (d >= 1LL << 31) {
532 2294144 coeff = 0.0;
533 } else {
534 10030836 int64_t dd = (d * d) >> 30;
535 10030836 int64_t ddd = (dd * d) >> 30;
536
537
2/2
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✓ Branch 1 taken 5009434 times.
 10030836 if (d < 1LL << 30)
538 5021402 coeff = (12 * (1 << 24) - 9 * B - 6 * C) * ddd +
539 5021402 (-18 * (1 << 24) + 12 * B + 6 * C) * dd +
540 5021402 (6 * (1 << 24) - 2 * B) * (1 << 30);
541 else
542 5009434 coeff = (-B - 6 * C) * ddd +
543 5009434 (6 * B + 30 * C) * dd +
544 5009434 (-12 * B - 48 * C) * d +
545 5009434 (8 * B + 24 * C) * (1 << 30);
546 }
547 12324980 coeff /= (1LL<<54)/fone;
548
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 653418 } else if (flags & SWS_X) {
549 ✗ double A = param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
550 double c;
551
552 ✗ if (floatd < 1.0)
553 ✗ c = cos(floatd * M_PI);
554 else
555 ✗ c = -1.0;
556 ✗ if (c < 0.0)
557 ✗ c = -pow(-c, A);
558 else
559 ✗ c = pow(c, A);
560 ✗ coeff = (c * 0.5 + 0.5) * fone;
561
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 653418 } else if (flags & SWS_AREA) {
562 292968 int64_t d2 = d - (1 << 29);
563
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✓ Branch 0 taken 218924 times.
✓ Branch 1 taken 74044 times.
 292968 if (d2 * xInc < -(1LL << (29 + 16)))
564 218924 coeff = 1.0 * (1LL << (30 + 16));
565
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✓ Branch 1 taken 10442 times.
 74044 else if (d2 * xInc < (1LL << (29 + 16)))
566 63602 coeff = -d2 * xInc + (1LL << (29 + 16));
567 else
568 10442 coeff = 0.0;
569 292968 coeff *= fone >> (30 + 16);
570
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 360450 } else if (flags & SWS_GAUSS) {
571 ✗ double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
572 ✗ coeff = exp2(-p * floatd * floatd) * fone;
573
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 360450 } else if (flags & SWS_SINC) {
574 ✗ coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
575
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 360450 } else if (flags & SWS_LANCZOS) {
576 ✗ double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
577 ✗ coeff = (d ? sin(floatd * M_PI) * sin(floatd * M_PI / p) /
578 ✗ (floatd * floatd * M_PI * M_PI / p) : 1.0) * fone;
579 ✗ if (floatd > p)
580 ✗ coeff = 0;
581
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 360450 } else if (flags & SWS_BILINEAR) {
582 360450 coeff = (1 << 30) - d;
583
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✓ Branch 1 taken 316908 times.
 360450 if (coeff < 0)
584 43542 coeff = 0;
585 360450 coeff *= fone >> 30;
586 ✗ } else if (flags & SWS_SPLINE) {
587 ✗ double p = -2.196152422706632;
588 ✗ coeff = getSplineCoeff(1.0, 0.0, p, -p - 1.0, floatd) * fone;
589 } else {
590 ✗ av_assert0(0);
591 }
592
593 12978398 filter[i * filterSize + j] = coeff;
594 12978398 xx++;
595 }
596 2238843 xDstInSrc += 2LL * xInc;
597 }
598 }
599
600 /* apply src & dst Filter to filter -> filter2
601 * av_free(filter);
602 */
603
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 19180 av_assert0(filterSize > 0);
604 19180 filter2Size = filterSize;
605
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 19180 if (srcFilter)
606 ✗ filter2Size += srcFilter->length - 1;
607
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 19180 if (dstFilter)
608 ✗ filter2Size += dstFilter->length - 1;
609
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 19180 av_assert0(filter2Size > 0);
610
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 19180 if (!FF_ALLOCZ_TYPED_ARRAY(filter2, dstW * filter2Size))
611 ✗ goto nomem;
612
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 5355014 for (i = 0; i < dstW; i++) {
613 int j, k;
614
615
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 5335834 if (srcFilter) {
616 ✗ for (k = 0; k < srcFilter->length; k++) {
617 ✗ for (j = 0; j < filterSize; j++)
618 ✗ filter2[i * filter2Size + k + j] +=
619 ✗ srcFilter->coeff[k] * filter[i * filterSize + j];
620 }
621 } else {
622
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 21554215 for (j = 0; j < filterSize; j++)
623 16218381 filter2[i * filter2Size + j] = filter[i * filterSize + j];
624 }
625 // FIXME dstFilter
626
627 5335834 (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
628 }
629 19180 av_freep(&filter);
630
631 /* try to reduce the filter-size (step1 find size and shift left) */
632 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
633 19180 minFilterSize = 0;
634
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 5355014 for (i = dstW - 1; i >= 0; i--) {
635 5335834 int min = filter2Size;
636 int j;
637 5335834 int64_t cutOff = 0.0;
638
639 /* get rid of near zero elements on the left by shifting left */
640
1/2
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✗ Branch 1 not taken.
 6444801 for (j = 0; j < filter2Size; j++) {
641 int k;
642 6444801 cutOff += FFABS(filter2[i * filter2Size]);
643
644
2/2
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✓ Branch 1 taken 1111546 times.
 6444801 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
645 5333255 break;
646
647 /* preserve monotonicity because the core can't handle the
648 * filter otherwise */
649
4/4
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✓ Branch 2 taken 2579 times.
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 1111546 if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
650 2579 break;
651
652 // move filter coefficients left
653
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✓ Branch 1 taken 1108967 times.
 6306996 for (k = 1; k < filter2Size; k++)
654 5198029 filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
655 1108967 filter2[i * filter2Size + k - 1] = 0;
656 1108967 (*filterPos)[i]++;
657 }
658
659 5335834 cutOff = 0;
660 /* count near zeros on the right */
661
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✓ Branch 0 taken 4790047 times.
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 7744877 for (j = filter2Size - 1; j > 0; j--) {
662 4790047 cutOff += FFABS(filter2[i * filter2Size + j]);
663
664
2/2
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✓ Branch 1 taken 2409043 times.
 4790047 if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
665 2381004 break;
666 2409043 min--;
667 }
668
669
2/2
✓ Branch 0 taken 19836 times.
✓ Branch 1 taken 5315998 times.
 5335834 if (min > minFilterSize)
670 19836 minFilterSize = min;
671 }
672
673 if (PPC_ALTIVEC(cpu_flags)) {
674 // we can handle the special case 4, so we don't want to go the full 8
675 if (minFilterSize < 5)
676 filterAlign = 4;
677
678 /* We really don't want to waste our time doing useless computation, so
679 * fall back on the scalar C code for very small filters.
680 * Vectorizing is worth it only if you have a decent-sized vector. */
681 if (minFilterSize < 3)
682 filterAlign = 1;
683 }
684
685
2/2
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✓ Branch 1 taken 18848 times.
 19180 if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) {
686 // special case for unscaled vertical filtering
687
4/4
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✓ Branch 2 taken 151 times.
✓ Branch 3 taken 162 times.
 332 if (minFilterSize == 1 && filterAlign == 2)
688 151 filterAlign = 1;
689 }
690
691 if (have_lasx(cpu_flags) || have_lsx(cpu_flags)) {
692 int reNum = minFilterSize & (0x07);
693
694 if (minFilterSize < 5)
695 filterAlign = 4;
696 if (reNum < 3)
697 filterAlign = 1;
698 }
699
700
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 19180 times.
 19180 av_assert0(minFilterSize > 0);
701 19180 filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
702
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✓ Branch 1 taken 19180 times.
 19180 av_assert0(filterSize > 0);
703 19180 filter = av_malloc_array(dstW, filterSize * sizeof(*filter));
704
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✓ Branch 1 taken 19180 times.
 19180 if (!filter)
705 ✗ goto nomem;
706
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✓ Branch 1 taken 19180 times.
 19180 if (filterSize >= MAX_FILTER_SIZE * 16 /
707
2/2
✓ Branch 0 taken 16300 times.
✓ Branch 1 taken 2880 times.
 19180 ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16)) {
708 ✗ ret = RETCODE_USE_CASCADE;
709 ✗ goto fail;
710 }
711 19180 *outFilterSize = filterSize;
712
713
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 19180 times.
 19180 if (flags & SWS_PRINT_INFO)
714 ✗ av_log(NULL, AV_LOG_VERBOSE,
715 "SwScaler: reducing / aligning filtersize %d -> %d\n",
716 filter2Size, filterSize);
717 /* try to reduce the filter-size (step2 reduce it) */
718
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✓ Branch 1 taken 19180 times.
 5355014 for (i = 0; i < dstW; i++) {
719 int j;
720
721
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 19405019 for (j = 0; j < filterSize; j++) {
722
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✓ Branch 1 taken 13926607 times.
 14069185 if (j >= filter2Size)
723 142578 filter[i * filterSize + j] = 0;
724 else
725 13926607 filter[i * filterSize + j] = filter2[i * filter2Size + j];
726
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✓ Branch 2 taken 103680 times.
✓ Branch 3 taken 12453055 times.
 14069185 if ((flags & SWS_BITEXACT) && j >= minFilterSize)
727 103680 filter[i * filterSize + j] = 0;
728 }
729 }
730
731 // FIXME try to align filterPos if possible
732
733 // fix borders
734
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 5355014 for (i = 0; i < dstW; i++) {
735 int j;
736
2/2
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 5335834 if ((*filterPos)[i] < 0) {
737 // move filter coefficients left to compensate for filterPos
738
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 96067 for (j = 1; j < filterSize; j++) {
739 78491 int left = FFMAX(j + (*filterPos)[i], 0);
740 78491 filter[i * filterSize + left] += filter[i * filterSize + j];
741 78491 filter[i * filterSize + j] = 0;
742 }
743 17576 (*filterPos)[i]= 0;
744 }
745
746
2/2
✓ Branch 0 taken 25085 times.
✓ Branch 1 taken 5310749 times.
 5335834 if ((*filterPos)[i] + filterSize > srcW) {
747 25085 int shift = (*filterPos)[i] + FFMIN(filterSize - srcW, 0);
748 25085 int64_t acc = 0;
749
750
2/2
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 153634 for (j = filterSize - 1; j >= 0; j--) {
751
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 128549 if ((*filterPos)[i] + j >= srcW) {
752 39790 acc += filter[i * filterSize + j];
753 39790 filter[i * filterSize + j] = 0;
754 }
755 }
756
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 153634 for (j = filterSize - 1; j >= 0; j--) {
757
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✓ Branch 1 taken 88759 times.
 128549 if (j < shift) {
758 39790 filter[i * filterSize + j] = 0;
759 } else {
760 88759 filter[i * filterSize + j] = filter[i * filterSize + j - shift];
761 }
762 }
763
764 25085 (*filterPos)[i]-= shift;
765 25085 filter[i * filterSize + srcW - 1 - (*filterPos)[i]] += acc;
766 }
767
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 5335834 av_assert0((*filterPos)[i] >= 0);
768
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 5335834 av_assert0((*filterPos)[i] < srcW);
769
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 5335834 if ((*filterPos)[i] + filterSize > srcW) {
770 ✗ for (j = 0; j < filterSize; j++) {
771 ✗ av_assert0((*filterPos)[i] + j < srcW || !filter[i * filterSize + j]);
772 }
773 }
774 }
775
776 // Note the +1 is for the MMX scaler which reads over the end
777 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
778
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 19180 times.
 19180 if (!FF_ALLOCZ_TYPED_ARRAY(*outFilter, *outFilterSize * (dstW + 3)))
779 ✗ goto nomem;
780
781 /* normalize & store in outFilter */
782
2/2
✓ Branch 0 taken 5335834 times.
✓ Branch 1 taken 19180 times.
 5355014 for (i = 0; i < dstW; i++) {
783 int j;
784 5335834 int64_t error = 0;
785 5335834 int64_t sum = 0;
786
787
2/2
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✓ Branch 1 taken 5335834 times.
 19405019 for (j = 0; j < filterSize; j++) {
788 14069185 sum += filter[i * filterSize + j];
789 }
790 5335834 sum = (sum + one / 2) / one;
791
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5335834 times.
 5335834 if (!sum) {
792 ✗ av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
793 ✗ sum = 1;
794 }
795
2/2
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 19405019 for (j = 0; j < *outFilterSize; j++) {
796 14069185 int64_t v = filter[i * filterSize + j] + error;
797
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 14069185 int intV = ROUNDED_DIV(v, sum);
798 14069185 (*outFilter)[i * (*outFilterSize) + j] = intV;
799 14069185 error = v - intV * sum;
800 }
801 }
802
803 19180 (*filterPos)[dstW + 0] =
804 19180 (*filterPos)[dstW + 1] =
805 19180 (*filterPos)[dstW + 2] = (*filterPos)[dstW - 1]; /* the MMX/SSE scaler will
806 * read over the end */
807
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 79047 for (i = 0; i < *outFilterSize; i++) {
808 59867 int k = (dstW - 1) * (*outFilterSize) + i;
809 59867 (*outFilter)[k + 1 * (*outFilterSize)] =
810 59867 (*outFilter)[k + 2 * (*outFilterSize)] =
811 59867 (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
812 }
813
814 19180 ret = 0;
815 19180 goto done;
816 ✗ nomem:
817 ✗ ret = AVERROR(ENOMEM);
818 ✗ fail:
819 ✗ if(ret < 0)
820 ✗ av_log(NULL, ret == RETCODE_USE_CASCADE ? AV_LOG_DEBUG : AV_LOG_ERROR, "sws: initFilter failed\n");
821 ✗ done:
822 19180 av_free(filter);
823 19180 av_free(filter2);
824 19180 return ret;
825 }
826
827 5172 static void fill_rgb2yuv_table(SwsContext *c, const int table[4], int dstRange)
828 {
829 int64_t W, V, Z, Cy, Cu, Cv;
830 5172 int64_t vr = table[0];
831 5172 int64_t ub = table[1];
832 5172 int64_t ug = -table[2];
833 5172 int64_t vg = -table[3];
834 5172 int64_t ONE = 65536;
835 5172 int64_t cy = ONE;
836 5172 uint8_t *p = (uint8_t*)c->input_rgb2yuv_table;
837 int i;
838 static const int8_t map[] = {
839 BY_IDX, GY_IDX, -1 , BY_IDX, BY_IDX, GY_IDX, -1 , BY_IDX,
840 RY_IDX, -1 , GY_IDX, RY_IDX, RY_IDX, -1 , GY_IDX, RY_IDX,
841 RY_IDX, GY_IDX, -1 , RY_IDX, RY_IDX, GY_IDX, -1 , RY_IDX,
842 BY_IDX, -1 , GY_IDX, BY_IDX, BY_IDX, -1 , GY_IDX, BY_IDX,
843 BU_IDX, GU_IDX, -1 , BU_IDX, BU_IDX, GU_IDX, -1 , BU_IDX,
844 RU_IDX, -1 , GU_IDX, RU_IDX, RU_IDX, -1 , GU_IDX, RU_IDX,
845 RU_IDX, GU_IDX, -1 , RU_IDX, RU_IDX, GU_IDX, -1 , RU_IDX,
846 BU_IDX, -1 , GU_IDX, BU_IDX, BU_IDX, -1 , GU_IDX, BU_IDX,
847 BV_IDX, GV_IDX, -1 , BV_IDX, BV_IDX, GV_IDX, -1 , BV_IDX,
848 RV_IDX, -1 , GV_IDX, RV_IDX, RV_IDX, -1 , GV_IDX, RV_IDX,
849 RV_IDX, GV_IDX, -1 , RV_IDX, RV_IDX, GV_IDX, -1 , RV_IDX,
850 BV_IDX, -1 , GV_IDX, BV_IDX, BV_IDX, -1 , GV_IDX, BV_IDX,
851 RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX,
852 BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX, BY_IDX, RY_IDX,
853 GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 ,
854 -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX, -1 , GY_IDX,
855 RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX,
856 BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX, BU_IDX, RU_IDX,
857 GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 ,
858 -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX, -1 , GU_IDX,
859 RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX,
860 BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX, BV_IDX, RV_IDX,
861 GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 ,
862 -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, -1 , GV_IDX, //23
863 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //24
864 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //25
865 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //26
866 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //27
867 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //28
868 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //29
869 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //30
870 -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 , //31
871 BY_IDX, GY_IDX, RY_IDX, -1 , -1 , -1 , -1 , -1 , //32
872 BU_IDX, GU_IDX, RU_IDX, -1 , -1 , -1 , -1 , -1 , //33
873 BV_IDX, GV_IDX, RV_IDX, -1 , -1 , -1 , -1 , -1 , //34
874 };
875
876 5172 dstRange = 0; //FIXME range = 1 is handled elsewhere
877
878
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 5172 if (!dstRange) {
879 5172 cy = cy * 255 / 219;
880 } else {
881 ✗ vr = vr * 224 / 255;
882 ✗ ub = ub * 224 / 255;
883 ✗ ug = ug * 224 / 255;
884 ✗ vg = vg * 224 / 255;
885 }
886
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 5172 W = ROUNDED_DIV(ONE*ONE*ug, ub);
887
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 5172 V = ROUNDED_DIV(ONE*ONE*vg, vr);
888 5172 Z = ONE*ONE-W-V;
889
890
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 5172 Cy = ROUNDED_DIV(cy*Z, ONE);
891
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 5172 Cu = ROUNDED_DIV(ub*Z, ONE);
892
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 5172 Cv = ROUNDED_DIV(vr*Z, ONE);
893
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 5172 c->input_rgb2yuv_table[RY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cy);
895 5172 c->input_rgb2yuv_table[GY_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cy);
896
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 5172 c->input_rgb2yuv_table[BY_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cy);
897
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 5172 c->input_rgb2yuv_table[RU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*V , Cu);
899 5172 c->input_rgb2yuv_table[GU_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cu);
900
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 5172 c->input_rgb2yuv_table[BU_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(Z+W) , Cu);
901
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 5172 c->input_rgb2yuv_table[RV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*(V+Z) , Cv);
903 5172 c->input_rgb2yuv_table[GV_IDX] = -ROUNDED_DIV((1 << RGB2YUV_SHIFT)*ONE*ONE , Cv);
904
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 5172 c->input_rgb2yuv_table[BV_IDX] = ROUNDED_DIV((1 << RGB2YUV_SHIFT)*W , Cv);
905
906
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 5172 if(/*!dstRange && */!memcmp(table, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], sizeof(ff_yuv2rgb_coeffs[SWS_CS_DEFAULT]))) {
907 5172 c->input_rgb2yuv_table[BY_IDX] = ((int)(0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
908 5172 c->input_rgb2yuv_table[BV_IDX] = (-(int)(0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
909 5172 c->input_rgb2yuv_table[BU_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
910 5172 c->input_rgb2yuv_table[GY_IDX] = ((int)(0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
911 5172 c->input_rgb2yuv_table[GV_IDX] = (-(int)(0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
912 5172 c->input_rgb2yuv_table[GU_IDX] = (-(int)(0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
913 5172 c->input_rgb2yuv_table[RY_IDX] = ((int)(0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
914 5172 c->input_rgb2yuv_table[RV_IDX] = ((int)(0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
915 5172 c->input_rgb2yuv_table[RU_IDX] = (-(int)(0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5));
916 }
917
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 1453332 for(i=0; i<FF_ARRAY_ELEMS(map); i++)
918
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 1448160 AV_WL16(p + 16*4 + 2*i, map[i] >= 0 ? c->input_rgb2yuv_table[map[i]] : 0);
919 5172 }
920
921 78 static void fill_xyztables(struct SwsContext *c)
922 {
923 int i;
924 78 double xyzgamma = XYZ_GAMMA;
925 78 double rgbgamma = 1.0 / RGB_GAMMA;
926 78 double xyzgammainv = 1.0 / XYZ_GAMMA;
927 78 double rgbgammainv = RGB_GAMMA;
928 static const int16_t xyz2rgb_matrix[3][4] = {
929 {13270, -6295, -2041},
930 {-3969, 7682, 170},
931 { 228, -835, 4329} };
932 static const int16_t rgb2xyz_matrix[3][4] = {
933 {1689, 1464, 739},
934 { 871, 2929, 296},
935 { 79, 488, 3891} };
936 static int16_t xyzgamma_tab[4096], rgbgamma_tab[4096], xyzgammainv_tab[4096], rgbgammainv_tab[4096];
937
938 78 memcpy(c->xyz2rgb_matrix, xyz2rgb_matrix, sizeof(c->xyz2rgb_matrix));
939 78 memcpy(c->rgb2xyz_matrix, rgb2xyz_matrix, sizeof(c->rgb2xyz_matrix));
940 78 c->xyzgamma = xyzgamma_tab;
941 78 c->rgbgamma = rgbgamma_tab;
942 78 c->xyzgammainv = xyzgammainv_tab;
943 78 c->rgbgammainv = rgbgammainv_tab;
944
945
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 78 if (rgbgamma_tab[4095])
946 54 return;
947
948 /* set gamma vectors */
949
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 98328 for (i = 0; i < 4096; i++) {
950 98304 xyzgamma_tab[i] = lrint(pow(i / 4095.0, xyzgamma) * 4095.0);
951 98304 rgbgamma_tab[i] = lrint(pow(i / 4095.0, rgbgamma) * 4095.0);
952 98304 xyzgammainv_tab[i] = lrint(pow(i / 4095.0, xyzgammainv) * 4095.0);
953 98304 rgbgammainv_tab[i] = lrint(pow(i / 4095.0, rgbgammainv) * 4095.0);
954 }
955 }
956
957 11240 static int handle_jpeg(enum AVPixelFormat *format)
958 {
959
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 11240 switch (*format) {
960 157 case AV_PIX_FMT_YUVJ420P:
961 157 *format = AV_PIX_FMT_YUV420P;
962 157 return 1;
963 15 case AV_PIX_FMT_YUVJ411P:
964 15 *format = AV_PIX_FMT_YUV411P;
965 15 return 1;
966 42 case AV_PIX_FMT_YUVJ422P:
967 42 *format = AV_PIX_FMT_YUV422P;
968 42 return 1;
969 52 case AV_PIX_FMT_YUVJ444P:
970 52 *format = AV_PIX_FMT_YUV444P;
971 52 return 1;
972 21 case AV_PIX_FMT_YUVJ440P:
973 21 *format = AV_PIX_FMT_YUV440P;
974 21 return 1;
975 254 case AV_PIX_FMT_GRAY8:
976 case AV_PIX_FMT_YA8:
977 case AV_PIX_FMT_GRAY9LE:
978 case AV_PIX_FMT_GRAY9BE:
979 case AV_PIX_FMT_GRAY10LE:
980 case AV_PIX_FMT_GRAY10BE:
981 case AV_PIX_FMT_GRAY12LE:
982 case AV_PIX_FMT_GRAY12BE:
983 case AV_PIX_FMT_GRAY14LE:
984 case AV_PIX_FMT_GRAY14BE:
985 case AV_PIX_FMT_GRAY16LE:
986 case AV_PIX_FMT_GRAY16BE:
987 case AV_PIX_FMT_YA16BE:
988 case AV_PIX_FMT_YA16LE:
989 254 return 1;
990 10699 default:
991 10699 return 0;
992 }
993 }
994
995 47302 static int handle_0alpha(enum AVPixelFormat *format)
996 {
997
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 47302 switch (*format) {
998 18 case AV_PIX_FMT_0BGR : *format = AV_PIX_FMT_ABGR ; return 1;
999 202 case AV_PIX_FMT_BGR0 : *format = AV_PIX_FMT_BGRA ; return 4;
1000 18 case AV_PIX_FMT_0RGB : *format = AV_PIX_FMT_ARGB ; return 1;
1001 18 case AV_PIX_FMT_RGB0 : *format = AV_PIX_FMT_RGBA ; return 4;
1002 47046 default: return 0;
1003 }
1004 }
1005
1006 47302 static int handle_xyz(enum AVPixelFormat *format)
1007 {
1008
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 47302 switch (*format) {
1009 13 case AV_PIX_FMT_XYZ12BE : *format = AV_PIX_FMT_RGB48BE; return 1;
1010 15 case AV_PIX_FMT_XYZ12LE : *format = AV_PIX_FMT_RGB48LE; return 1;
1011 47274 default: return 0;
1012 }
1013 }
1014
1015 23651 static void handle_formats(SwsContext *c)
1016 {
1017 23651 c->src0Alpha |= handle_0alpha(&c->srcFormat);
1018 23651 c->dst0Alpha |= handle_0alpha(&c->dstFormat);
1019 23651 c->srcXYZ |= handle_xyz(&c->srcFormat);
1020 23651 c->dstXYZ |= handle_xyz(&c->dstFormat);
1021
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 23651 if (c->srcXYZ || c->dstXYZ)
1022 78 fill_xyztables(c);
1023 23651 }
1024
1025 37928 static int range_override_needed(enum AVPixelFormat format)
1026 {
1027
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 37928 return !isYUV(format) && !isGray(format);
1028 }
1029
1030 15531 int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
1031 int srcRange, const int table[4], int dstRange,
1032 int brightness, int contrast, int saturation)
1033 {
1034 const AVPixFmtDescriptor *desc_dst;
1035 const AVPixFmtDescriptor *desc_src;
1036 15531 int need_reinit = 0;
1037
1038
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 15531 if (c->nb_slice_ctx) {
1039 365 int parent_ret = 0;
1040
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 3595 for (int i = 0; i < c->nb_slice_ctx; i++) {
1041 3230 int ret = sws_setColorspaceDetails(c->slice_ctx[i], inv_table,
1042 srcRange, table, dstRange,
1043 brightness, contrast, saturation);
1044
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 3230 if (ret < 0)
1045 ✗ parent_ret = ret;
1046 }
1047
1048 365 return parent_ret;
1049 }
1050
1051 15166 handle_formats(c);
1052 15166 desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1053 15166 desc_src = av_pix_fmt_desc_get(c->srcFormat);
1054
1055
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 15166 if(range_override_needed(c->dstFormat))
1056 8055 dstRange = 0;
1057
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 15166 if(range_override_needed(c->srcFormat))
1058 4138 srcRange = 0;
1059
1060
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 15166 if (c->srcRange != srcRange ||
1061
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 13145 c->dstRange != dstRange ||
1062
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 11725 c->brightness != brightness ||
1063
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 11725 c->contrast != contrast ||
1064
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 6681 c->saturation != saturation ||
1065
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 6681 memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
1066
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 6545 memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
1067 )
1068 8621 need_reinit = 1;
1069
1070 15166 memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
1071 15166 memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
1072
1073
1074
1075 15166 c->brightness = brightness;
1076 15166 c->contrast = contrast;
1077 15166 c->saturation = saturation;
1078 15166 c->srcRange = srcRange;
1079 15166 c->dstRange = dstRange;
1080
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 15166 if (need_reinit) {
1082 8621 ff_sws_init_range_convert(c);
1083 #if ARCH_AARCH64
1084 ff_sws_init_range_convert_aarch64(c);
1085 #elif ARCH_LOONGARCH64
1086 ff_sws_init_range_convert_loongarch(c);
1087 #elif ARCH_X86
1088 8621 ff_sws_init_range_convert_x86(c);
1089 #endif
1090 }
1091
1092 15166 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1093 15166 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1094
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 15166 if (c->cascaded_context[c->cascaded_mainindex])
1096 ✗ return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
1097
1098
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 15166 if (!need_reinit)
1099 6545 return 0;
1100
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 8621 if ((isYUV(c->dstFormat) || isGray(c->dstFormat)) && (isYUV(c->srcFormat) || isGray(c->srcFormat))) {
1102
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 3449 if (!c->cascaded_context[0] &&
1103
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 3449 memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&
1104
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 9 c->srcW && c->srcH && c->dstW && c->dstH) {
1105 enum AVPixelFormat tmp_format;
1106 int tmp_width, tmp_height;
1107 9 int srcW = c->srcW;
1108 9 int srcH = c->srcH;
1109 9 int dstW = c->dstW;
1110 9 int dstH = c->dstH;
1111 int ret;
1112 9 av_log(c, AV_LOG_VERBOSE, "YUV color matrix differs for YUV->YUV, using intermediate RGB to convert\n");
1113
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 9 if (isNBPS(c->dstFormat) || is16BPS(c->dstFormat)) {
1115 ✗ if (isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) {
1116 ✗ tmp_format = AV_PIX_FMT_BGRA64;
1117 } else {
1118 ✗ tmp_format = AV_PIX_FMT_BGR48;
1119 }
1120 } else {
1121
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 9 if (isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) {
1122 ✗ tmp_format = AV_PIX_FMT_BGRA;
1123 } else {
1124 9 tmp_format = AV_PIX_FMT_BGR24;
1125 }
1126 }
1127
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 9 if (srcW*srcH > dstW*dstH) {
1129 ✗ tmp_width = dstW;
1130 ✗ tmp_height = dstH;
1131 } else {
1132 9 tmp_width = srcW;
1133 9 tmp_height = srcH;
1134 }
1135
1136 9 ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1137 tmp_width, tmp_height, tmp_format, 64);
1138
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 9 if (ret < 0)
1139 ✗ return ret;
1140
1141 18 c->cascaded_context[0] = alloc_set_opts(srcW, srcH, c->srcFormat,
1142 tmp_width, tmp_height, tmp_format,
1143 9 c->flags, c->param);
1144
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 9 if (!c->cascaded_context[0])
1145 ✗ return -1;
1146
1147 9 c->cascaded_context[0]->alphablend = c->alphablend;
1148 9 ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1149
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 9 if (ret < 0)
1150 ✗ return ret;
1151 //we set both src and dst depending on that the RGB side will be ignored
1152 9 sws_setColorspaceDetails(c->cascaded_context[0], inv_table,
1153 srcRange, table, dstRange,
1154 brightness, contrast, saturation);
1155
1156 18 c->cascaded_context[1] = alloc_set_opts(tmp_width, tmp_height, tmp_format,
1157 dstW, dstH, c->dstFormat,
1158 9 c->flags, c->param);
1159
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 9 if (!c->cascaded_context[1])
1160 ✗ return -1;
1161 9 c->cascaded_context[1]->srcRange = srcRange;
1162 9 c->cascaded_context[1]->dstRange = dstRange;
1163 9 ret = sws_init_context(c->cascaded_context[1], NULL , NULL);
1164
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 9 if (ret < 0)
1165 ✗ return ret;
1166 9 sws_setColorspaceDetails(c->cascaded_context[1], inv_table,
1167 srcRange, table, dstRange,
1168 0, 1 << 16, 1 << 16);
1169 9 return 0;
1170 }
1171 //We do not support this combination currently, we need to cascade more contexts to compensate
1172
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 3440 if (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
1173 ✗ return -1; //AVERROR_PATCHWELCOME;
1174 3440 return 0;
1175 }
1176
1177
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 5172 if (!isYUV(c->dstFormat) && !isGray(c->dstFormat)) {
1178 4845 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
1179 contrast, saturation);
1180 // FIXME factorize
1181
1182 #if ARCH_PPC
1183 ff_yuv2rgb_init_tables_ppc(c, inv_table, brightness,
1184 contrast, saturation);
1185 #endif
1186 }
1187
1188 5172 fill_rgb2yuv_table(c, table, dstRange);
1189
1190 5172 return 0;
1191 }
1192
1193 4163 int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table,
1194 int *srcRange, int **table, int *dstRange,
1195 int *brightness, int *contrast, int *saturation)
1196 {
1197
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 4163 if (!c )
1198 ✗ return -1;
1199
1200
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 4163 if (c->nb_slice_ctx) {
1201 365 return sws_getColorspaceDetails(c->slice_ctx[0], inv_table, srcRange,
1202 table, dstRange, brightness, contrast,
1203 saturation);
1204 }
1205
1206 3798 *inv_table = c->srcColorspaceTable;
1207 3798 *table = c->dstColorspaceTable;
1208
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 3798 *srcRange = range_override_needed(c->srcFormat) ? 1 : c->srcRange;
1209
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 3798 *dstRange = range_override_needed(c->dstFormat) ? 1 : c->dstRange;
1210 3798 *brightness = c->brightness;
1211 3798 *contrast = c->contrast;
1212 3798 *saturation = c->saturation;
1213
1214 3798 return 0;
1215 }
1216
1217 15802 SwsContext *sws_alloc_context(void)
1218 {
1219 15802 SwsContext *c = av_mallocz(sizeof(SwsContext));
1220
1221 av_assert0(offsetof(SwsContext, redDither) + DITHER32_INT == offsetof(SwsContext, dither32));
1222
1223
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 15802 if (c) {
1224 15802 c->av_class = &ff_sws_context_class;
1225 15802 av_opt_set_defaults(c);
1226 15802 atomic_init(&c->stride_unaligned_warned, 0);
1227 15802 atomic_init(&c->data_unaligned_warned, 0);
1228 }
1229
1230 15802 return c;
1231 }
1232
1233 ✗ static uint16_t * alloc_gamma_tbl(double e)
1234 {
1235 ✗ int i = 0;
1236 uint16_t * tbl;
1237 ✗ tbl = (uint16_t*)av_malloc(sizeof(uint16_t) * 1 << 16);
1238 ✗ if (!tbl)
1239 ✗ return NULL;
1240
1241 ✗ for (i = 0; i < 65536; ++i) {
1242 ✗ tbl[i] = pow(i / 65535.0, e) * 65535.0;
1243 }
1244 ✗ return tbl;
1245 }
1246
1247 1291 static enum AVPixelFormat alphaless_fmt(enum AVPixelFormat fmt)
1248 {
1249
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 1291 switch(fmt) {
1250 11 case AV_PIX_FMT_ARGB: return AV_PIX_FMT_RGB24;
1251 11 case AV_PIX_FMT_RGBA: return AV_PIX_FMT_RGB24;
1252 2 case AV_PIX_FMT_ABGR: return AV_PIX_FMT_BGR24;
1253 103 case AV_PIX_FMT_BGRA: return AV_PIX_FMT_BGR24;
1254 45 case AV_PIX_FMT_YA8: return AV_PIX_FMT_GRAY8;
1255
1256 312 case AV_PIX_FMT_YUVA420P: return AV_PIX_FMT_YUV420P;
1257 3 case AV_PIX_FMT_YUVA422P: return AV_PIX_FMT_YUV422P;
1258 4 case AV_PIX_FMT_YUVA444P: return AV_PIX_FMT_YUV444P;
1259
1260 46 case AV_PIX_FMT_GBRAP: return AV_PIX_FMT_GBRP;
1261
1262 1 case AV_PIX_FMT_GBRAP10LE: return AV_PIX_FMT_GBRP10;
1263 ✗ case AV_PIX_FMT_GBRAP10BE: return AV_PIX_FMT_GBRP10;
1264
1265 1 case AV_PIX_FMT_GBRAP12LE: return AV_PIX_FMT_GBRP12;
1266 ✗ case AV_PIX_FMT_GBRAP12BE: return AV_PIX_FMT_GBRP12;
1267
1268 ✗ case AV_PIX_FMT_GBRAP14LE: return AV_PIX_FMT_GBRP14;
1269 ✗ case AV_PIX_FMT_GBRAP14BE: return AV_PIX_FMT_GBRP14;
1270
1271 1 case AV_PIX_FMT_GBRAP16LE: return AV_PIX_FMT_GBRP16;
1272 9 case AV_PIX_FMT_GBRAP16BE: return AV_PIX_FMT_GBRP16;
1273
1274 1 case AV_PIX_FMT_RGBA64LE: return AV_PIX_FMT_RGB48;
1275 9 case AV_PIX_FMT_RGBA64BE: return AV_PIX_FMT_RGB48;
1276 1 case AV_PIX_FMT_BGRA64LE: return AV_PIX_FMT_BGR48;
1277 ✗ case AV_PIX_FMT_BGRA64BE: return AV_PIX_FMT_BGR48;
1278
1279 45 case AV_PIX_FMT_YA16BE: return AV_PIX_FMT_GRAY16;
1280 ✗ case AV_PIX_FMT_YA16LE: return AV_PIX_FMT_GRAY16;
1281
1282 ✗ case AV_PIX_FMT_YUVA420P9BE: return AV_PIX_FMT_YUV420P9;
1283 ✗ case AV_PIX_FMT_YUVA422P9BE: return AV_PIX_FMT_YUV422P9;
1284 ✗ case AV_PIX_FMT_YUVA444P9BE: return AV_PIX_FMT_YUV444P9;
1285 ✗ case AV_PIX_FMT_YUVA420P9LE: return AV_PIX_FMT_YUV420P9;
1286 ✗ case AV_PIX_FMT_YUVA422P9LE: return AV_PIX_FMT_YUV422P9;
1287 ✗ case AV_PIX_FMT_YUVA444P9LE: return AV_PIX_FMT_YUV444P9;
1288 ✗ case AV_PIX_FMT_YUVA420P10BE: return AV_PIX_FMT_YUV420P10;
1289 ✗ case AV_PIX_FMT_YUVA422P10BE: return AV_PIX_FMT_YUV422P10;
1290 ✗ case AV_PIX_FMT_YUVA444P10BE: return AV_PIX_FMT_YUV444P10;
1291 ✗ case AV_PIX_FMT_YUVA420P10LE: return AV_PIX_FMT_YUV420P10;
1292 ✗ case AV_PIX_FMT_YUVA422P10LE: return AV_PIX_FMT_YUV422P10;
1293 ✗ case AV_PIX_FMT_YUVA444P10LE: return AV_PIX_FMT_YUV444P10;
1294 ✗ case AV_PIX_FMT_YUVA420P16BE: return AV_PIX_FMT_YUV420P16;
1295 ✗ case AV_PIX_FMT_YUVA422P16BE: return AV_PIX_FMT_YUV422P16;
1296 ✗ case AV_PIX_FMT_YUVA444P16BE: return AV_PIX_FMT_YUV444P16;
1297 ✗ case AV_PIX_FMT_YUVA420P16LE: return AV_PIX_FMT_YUV420P16;
1298 9 case AV_PIX_FMT_YUVA422P16LE: return AV_PIX_FMT_YUV422P16;
1299 4 case AV_PIX_FMT_YUVA444P16LE: return AV_PIX_FMT_YUV444P16;
1300
1301 // case AV_PIX_FMT_AYUV64LE:
1302 // case AV_PIX_FMT_AYUV64BE:
1303 // case AV_PIX_FMT_PAL8:
1304 673 default: return AV_PIX_FMT_NONE;
1305 }
1306 }
1307
1308 static int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
1309 SwsFilter *dstFilter);
1310
1311 8485 static av_cold int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
1312 SwsFilter *dstFilter)
1313 {
1314 int i;
1315 int usesVFilter, usesHFilter;
1316 int unscaled;
1317 8485 SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
1318 8485 int srcW = c->srcW;
1319 8485 int srcH = c->srcH;
1320 8485 int dstW = c->dstW;
1321 8485 int dstH = c->dstH;
1322 8485 int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 66, 16);
1323 int flags, cpu_flags;
1324 enum AVPixelFormat srcFormat, dstFormat;
1325 const AVPixFmtDescriptor *desc_src;
1326 const AVPixFmtDescriptor *desc_dst;
1327 8485 int ret = 0;
1328 enum AVPixelFormat tmpFmt;
1329 static const float float_mult = 1.0f / 255.0f;
1330
1331 8485 cpu_flags = av_get_cpu_flags();
1332 8485 flags = c->flags;
1333 8485 emms_c();
1334
1335
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 8485 unscaled = (srcW == dstW && srcH == dstH);
1336
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 8485 if (!c->contrast && !c->saturation && !c->dstFormatBpp)
1338 8485 sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], c->srcRange,
1339 ff_yuv2rgb_coeffs[SWS_CS_DEFAULT],
1340 c->dstRange, 0, 1 << 16, 1 << 16);
1341
1342 8485 handle_formats(c);
1343 8485 srcFormat = c->srcFormat;
1344 8485 dstFormat = c->dstFormat;
1345 8485 desc_src = av_pix_fmt_desc_get(srcFormat);
1346 8485 desc_dst = av_pix_fmt_desc_get(dstFormat);
1347
1348 // If the source has no alpha then disable alpha blendaway
1349
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 8485 if (c->src0Alpha)
1350 134 c->alphablend = SWS_ALPHA_BLEND_NONE;
1351
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 8497 if (!(unscaled && sws_isSupportedEndiannessConversion(srcFormat) &&
1353 12 av_pix_fmt_swap_endianness(srcFormat) == dstFormat)) {
1354
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 8485 if (!sws_isSupportedInput(srcFormat)) {
1355 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
1356 av_get_pix_fmt_name(srcFormat));
1357 ✗ return AVERROR(EINVAL);
1358 }
1359
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 8485 if (!sws_isSupportedOutput(dstFormat)) {
1360 ✗ av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n",
1361 av_get_pix_fmt_name(dstFormat));
1362 ✗ return AVERROR(EINVAL);
1363 }
1364 }
1365 av_assert2(desc_src && desc_dst);
1366
1367 8485 i = flags & (SWS_POINT |
1368 SWS_AREA |
1369 SWS_BILINEAR |
1370 SWS_FAST_BILINEAR |
1371 SWS_BICUBIC |
1372 SWS_X |
1373 SWS_GAUSS |
1374 SWS_LANCZOS |
1375 SWS_SINC |
1376 SWS_SPLINE |
1377 SWS_BICUBLIN);
1378
1379 /* provide a default scaler if not set by caller */
1380
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 8485 if (!i) {
1381
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 1584 if (dstW < srcW && dstH < srcH)
1382 ✗ flags |= SWS_BICUBIC;
1383
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 1584 else if (dstW > srcW && dstH > srcH)
1384 ✗ flags |= SWS_BICUBIC;
1385 else
1386 1584 flags |= SWS_BICUBIC;
1387 1584 c->flags = flags;
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 6901 } else if (i & (i - 1)) {
1389 ✗ av_log(c, AV_LOG_ERROR,
1390 "Exactly one scaler algorithm must be chosen, got %X\n", i);
1391 ✗ return AVERROR(EINVAL);
1392 }
1393 /* sanity check */
1394
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 8485 if (srcW < 1 || srcH < 1 || dstW < 1 || dstH < 1) {
1395 /* FIXME check if these are enough and try to lower them after
1396 * fixing the relevant parts of the code */
1397 ✗ av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
1398 srcW, srcH, dstW, dstH);
1399 ✗ return AVERROR(EINVAL);
1400 }
1401
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 8485 if (flags & SWS_FAST_BILINEAR) {
1402 ✗ if (srcW < 8 || dstW < 8) {
1403 ✗ flags ^= SWS_FAST_BILINEAR | SWS_BILINEAR;
1404 ✗ c->flags = flags;
1405 }
1406 }
1407
1408
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 8485 if (!dstFilter)
1409 8485 dstFilter = &dummyFilter;
1410
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 8485 if (!srcFilter)
1411 8485 srcFilter = &dummyFilter;
1412
1413 8485 c->lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
1414 8485 c->lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
1415 8485 c->dstFormatBpp = av_get_bits_per_pixel(desc_dst);
1416 8485 c->srcFormatBpp = av_get_bits_per_pixel(desc_src);
1417 8485 c->vRounder = 4 * 0x0001000100010001ULL;
1418
1419 ✗ usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
1420
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 8485 (srcFilter->chrV && srcFilter->chrV->length > 1) ||
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 25455 (dstFilter->lumV && dstFilter->lumV->length > 1) ||
1422
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 8485 (dstFilter->chrV && dstFilter->chrV->length > 1);
1423 ✗ usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
1424
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 8485 (srcFilter->chrH && srcFilter->chrH->length > 1) ||
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 8485 (dstFilter->chrH && dstFilter->chrH->length > 1);
1427
1428 8485 av_pix_fmt_get_chroma_sub_sample(srcFormat, &c->chrSrcHSubSample, &c->chrSrcVSubSample);
1429 8485 av_pix_fmt_get_chroma_sub_sample(dstFormat, &c->chrDstHSubSample, &c->chrDstVSubSample);
1430
1431 8485 c->dst_slice_align = 1 << c->chrDstVSubSample;
1432
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 8485 if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) {
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 4823 if (dstW&1) {
1435 273 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to odd output size\n");
1436 273 flags |= SWS_FULL_CHR_H_INT;
1437 273 c->flags = flags;
1438 }
1439
1440
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 4823 if ( c->chrSrcHSubSample == 0
1441
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 2025 && c->chrSrcVSubSample == 0
1442
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 2025 && c->dither != SWS_DITHER_BAYER //SWS_FULL_CHR_H_INT is currently not supported with SWS_DITHER_BAYER
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 2025 && !(c->flags & SWS_FAST_BILINEAR)
1444 ) {
1445 2025 av_log(c, AV_LOG_DEBUG, "Forcing full internal H chroma due to input having non subsampled chroma\n");
1446 2025 flags |= SWS_FULL_CHR_H_INT;
1447 2025 c->flags = flags;
1448 }
1449 }
1450
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 8485 if (flags & SWS_ERROR_DIFFUSION)
1453 ✗ c->dither = SWS_DITHER_ED;
1454 }
1455
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 8485 if(dstFormat == AV_PIX_FMT_BGR4_BYTE ||
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 8458 dstFormat == AV_PIX_FMT_RGB4_BYTE ||
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 8428 dstFormat == AV_PIX_FMT_BGR8 ||
1459 dstFormat == AV_PIX_FMT_RGB8) {
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 73 if (c->dither == SWS_DITHER_AUTO)
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 73 c->dither = (flags & SWS_FULL_CHR_H_INT) ? SWS_DITHER_ED : SWS_DITHER_BAYER;
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 73 if (!(flags & SWS_FULL_CHR_H_INT)) {
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 62 if (c->dither == SWS_DITHER_ED || c->dither == SWS_DITHER_A_DITHER || c->dither == SWS_DITHER_X_DITHER || c->dither == SWS_DITHER_NONE) {
1464 ✗ av_log(c, AV_LOG_DEBUG,
1465 "Desired dithering only supported in full chroma interpolation for destination format '%s'\n",
1466 av_get_pix_fmt_name(dstFormat));
1467 ✗ flags |= SWS_FULL_CHR_H_INT;
1468 ✗ c->flags = flags;
1469 }
1470 }
1471
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 73 if (flags & SWS_FULL_CHR_H_INT) {
1472
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11 times.
 11 if (c->dither == SWS_DITHER_BAYER) {
1473 ✗ av_log(c, AV_LOG_DEBUG,
1474 "Ordered dither is not supported in full chroma interpolation for destination format '%s'\n",
1475 av_get_pix_fmt_name(dstFormat));
1476 ✗ c->dither = SWS_DITHER_ED;
1477 }
1478 }
1479 }
1480
2/2
✓ Branch 1 taken 618 times.
✓ Branch 2 taken 7867 times.
 8485 if (isPlanarRGB(dstFormat)) {
1481
2/2
✓ Branch 0 taken 384 times.
✓ Branch 1 taken 234 times.
 618 if (!(flags & SWS_FULL_CHR_H_INT)) {
1482 384 av_log(c, AV_LOG_DEBUG,
1483 "%s output is not supported with half chroma resolution, switching to full\n",
1484 av_get_pix_fmt_name(dstFormat));
1485 384 flags |= SWS_FULL_CHR_H_INT;
1486 384 c->flags = flags;
1487 }
1488 }
1489
1490 /* reuse chroma for 2 pixels RGB/BGR unless user wants full
1491 * chroma interpolation */
1492
3/4
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✓ Branch 2 taken 2437 times.
✗ Branch 3 not taken.
 10922 if (flags & SWS_FULL_CHR_H_INT &&
1493
2/2
✓ Branch 1 taken 1819 times.
✓ Branch 2 taken 618 times.
 4874 isAnyRGB(dstFormat) &&
1494
2/2
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✓ Branch 2 taken 2 times.
 4256 !isPlanarRGB(dstFormat) &&
1495
2/2
✓ Branch 0 taken 1816 times.
✓ Branch 1 taken 1 times.
 1817 dstFormat != AV_PIX_FMT_RGBA64LE &&
1496
2/2
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✓ Branch 1 taken 2 times.
 1816 dstFormat != AV_PIX_FMT_RGBA64BE &&
1497
2/2
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✓ Branch 1 taken 1 times.
 1814 dstFormat != AV_PIX_FMT_BGRA64LE &&
1498
2/2
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✓ Branch 1 taken 13 times.
 1813 dstFormat != AV_PIX_FMT_BGRA64BE &&
1499
2/2
✓ Branch 0 taken 1797 times.
✓ Branch 1 taken 3 times.
 1800 dstFormat != AV_PIX_FMT_RGB48LE &&
1500
2/2
✓ Branch 0 taken 1795 times.
✓ Branch 1 taken 2 times.
 1797 dstFormat != AV_PIX_FMT_RGB48BE &&
1501
2/2
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✓ Branch 1 taken 1 times.
 1795 dstFormat != AV_PIX_FMT_BGR48LE &&
1502
2/2
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✓ Branch 1 taken 49 times.
 1794 dstFormat != AV_PIX_FMT_BGR48BE &&
1503
2/2
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✓ Branch 1 taken 13 times.
 1745 dstFormat != AV_PIX_FMT_RGBA &&
1504
2/2
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✓ Branch 1 taken 508 times.
 1732 dstFormat != AV_PIX_FMT_ARGB &&
1505
2/2
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✓ Branch 1 taken 4 times.
 1224 dstFormat != AV_PIX_FMT_BGRA &&
1506
2/2
✓ Branch 0 taken 63 times.
✓ Branch 1 taken 1157 times.
 1220 dstFormat != AV_PIX_FMT_ABGR &&
1507
2/2
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✓ Branch 1 taken 36 times.
 63 dstFormat != AV_PIX_FMT_RGB24 &&
1508
2/2
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✓ Branch 1 taken 2 times.
 27 dstFormat != AV_PIX_FMT_BGR24 &&
1509
2/2
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✓ Branch 1 taken 2 times.
 25 dstFormat != AV_PIX_FMT_BGR4_BYTE &&
1510
2/2
✓ Branch 0 taken 19 times.
✓ Branch 1 taken 4 times.
 23 dstFormat != AV_PIX_FMT_RGB4_BYTE &&
1511
2/2
✓ Branch 0 taken 16 times.
✓ Branch 1 taken 3 times.
 19 dstFormat != AV_PIX_FMT_BGR8 &&
1512 dstFormat != AV_PIX_FMT_RGB8
1513 ) {
1514 16 av_log(c, AV_LOG_WARNING,
1515 "full chroma interpolation for destination format '%s' not yet implemented\n",
1516 av_get_pix_fmt_name(dstFormat));
1517 16 flags &= ~SWS_FULL_CHR_H_INT;
1518 16 c->flags = flags;
1519 }
1520
4/4
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✓ Branch 3 taken 2414 times.
✓ Branch 4 taken 2421 times.
 8485 if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
1521 2414 c->chrDstHSubSample = 1;
1522
1523 // drop some chroma lines if the user wants it
1524 8485 c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
1525 SWS_SRC_V_CHR_DROP_SHIFT;
1526 8485 c->chrSrcVSubSample += c->vChrDrop;
1527
1528 /* drop every other pixel for chroma calculation unless user
1529 * wants full chroma */
1530
5/6
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✓ Branch 6 taken 1 times.
 8485 if (isAnyRGB(srcFormat) && !(flags & SWS_FULL_CHR_H_INP) &&
1531
3/4
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✗ Branch 3 not taken.
 1240 srcFormat != AV_PIX_FMT_RGB8 && srcFormat != AV_PIX_FMT_BGR8 &&
1532
3/4
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✓ Branch 3 taken 1 times.
 1239 srcFormat != AV_PIX_FMT_RGB4 && srcFormat != AV_PIX_FMT_BGR4 &&
1533
4/4
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✓ Branch 2 taken 1236 times.
✓ Branch 3 taken 1 times.
 1238 srcFormat != AV_PIX_FMT_RGB4_BYTE && srcFormat != AV_PIX_FMT_BGR4_BYTE &&
1534
4/4
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 1236 srcFormat != AV_PIX_FMT_GBRP9BE && srcFormat != AV_PIX_FMT_GBRP9LE &&
1535
4/4
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 1233 srcFormat != AV_PIX_FMT_GBRP10BE && srcFormat != AV_PIX_FMT_GBRP10LE &&
1536
4/4
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 1216 srcFormat != AV_PIX_FMT_GBRAP10BE && srcFormat != AV_PIX_FMT_GBRAP10LE &&
1537
4/4
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 1213 srcFormat != AV_PIX_FMT_GBRP12BE && srcFormat != AV_PIX_FMT_GBRP12LE &&
1538
4/4
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✓ Branch 2 taken 1207 times.
✓ Branch 3 taken 1 times.
 1210 srcFormat != AV_PIX_FMT_GBRAP12BE && srcFormat != AV_PIX_FMT_GBRAP12LE &&
1539
4/4
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 1207 srcFormat != AV_PIX_FMT_GBRAP14BE && srcFormat != AV_PIX_FMT_GBRAP14LE &&
1540
4/4
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✓ Branch 3 taken 10 times.
 1205 srcFormat != AV_PIX_FMT_GBRP14BE && srcFormat != AV_PIX_FMT_GBRP14LE &&
1541
4/4
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✓ Branch 2 taken 1175 times.
✓ Branch 3 taken 10 times.
 1193 srcFormat != AV_PIX_FMT_GBRP16BE && srcFormat != AV_PIX_FMT_GBRP16LE &&
1542
4/4
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✓ Branch 2 taken 1170 times.
✓ Branch 3 taken 1 times.
 1175 srcFormat != AV_PIX_FMT_GBRAP16BE && srcFormat != AV_PIX_FMT_GBRAP16LE &&
1543
4/4
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✓ Branch 1 taken 32 times.
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 1170 srcFormat != AV_PIX_FMT_GBRPF32BE && srcFormat != AV_PIX_FMT_GBRPF32LE &&
1544
2/2
✓ Branch 0 taken 1136 times.
✓ Branch 1 taken 1 times.
 1137 srcFormat != AV_PIX_FMT_GBRAPF32BE && srcFormat != AV_PIX_FMT_GBRAPF32LE &&
1545
2/2
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✓ Branch 1 taken 239 times.
 1136 ((dstW >> c->chrDstHSubSample) <= (srcW >> 1) ||
1546
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 897 times.
 897 (flags & SWS_FAST_BILINEAR)))
1547 239 c->chrSrcHSubSample = 1;
1548
1549 // Note the AV_CEIL_RSHIFT is so that we always round toward +inf.
1550 8485 c->chrSrcW = AV_CEIL_RSHIFT(srcW, c->chrSrcHSubSample);
1551 8485 c->chrSrcH = AV_CEIL_RSHIFT(srcH, c->chrSrcVSubSample);
1552 8485 c->chrDstW = AV_CEIL_RSHIFT(dstW, c->chrDstHSubSample);
1553 8485 c->chrDstH = AV_CEIL_RSHIFT(dstH, c->chrDstVSubSample);
1554
1555
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 8485 times.
 8485 if (!FF_ALLOCZ_TYPED_ARRAY(c->formatConvBuffer, FFALIGN(srcW * 2 + 78, 16) * 2))
1556 ✗ goto nomem;
1557
1558 8485 c->srcBpc = desc_src->comp[0].depth;
1559
2/2
✓ Branch 0 taken 180 times.
✓ Branch 1 taken 8305 times.
 8485 if (c->srcBpc < 8)
1560 180 c->srcBpc = 8;
1561 8485 c->dstBpc = desc_dst->comp[0].depth;
1562
2/2
✓ Branch 0 taken 904 times.
✓ Branch 1 taken 7581 times.
 8485 if (c->dstBpc < 8)
1563 904 c->dstBpc = 8;
1564
4/4
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✓ Branch 2 taken 1241 times.
✓ Branch 3 taken 862 times.
✓ Branch 4 taken 6382 times.
 8485 if (isAnyRGB(srcFormat) || srcFormat == AV_PIX_FMT_PAL8)
1565 2103 c->srcBpc = 16;
1566
2/2
✓ Branch 0 taken 618 times.
✓ Branch 1 taken 7867 times.
 8485 if (c->dstBpc == 16)
1567 618 dst_stride <<= 1;
1568
1569
6/6
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✓ Branch 1 taken 6904 times.
✓ Branch 2 taken 1464 times.
✓ Branch 3 taken 117 times.
✓ Branch 4 taken 1463 times.
✓ Branch 5 taken 1 times.
 8485 if (INLINE_MMXEXT(cpu_flags) && c->srcBpc == 8 && c->dstBpc <= 14) {
1570
2/2
✓ Branch 0 taken 660 times.
✓ Branch 1 taken 803 times.
 1463 c->canMMXEXTBeUsed = dstW >= srcW && (dstW & 31) == 0 &&
1571
2/4
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✗ Branch 1 not taken.
✓ Branch 2 taken 660 times.
✗ Branch 3 not taken.
 3586 c->chrDstW >= c->chrSrcW &&
1572
1/2
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✗ Branch 1 not taken.
 660 (srcW & 15) == 0;
1573
6/8
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✓ Branch 4 taken 803 times.
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✓ Branch 6 taken 143 times.
✓ Branch 7 taken 660 times.
 1463 if (!c->canMMXEXTBeUsed && dstW >= srcW && c->chrDstW >= c->chrSrcW && (srcW & 15) == 0
1574
1575
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 143 times.
 143 && (flags & SWS_FAST_BILINEAR)) {
1576 ✗ if (flags & SWS_PRINT_INFO)
1577 ✗ av_log(c, AV_LOG_INFO,
1578 "output width is not a multiple of 32 -> no MMXEXT scaler\n");
1579 }
1580
4/8
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✓ Branch 10 taken 1463 times.
 1463 if (usesHFilter || isNBPS(c->srcFormat) || is16BPS(c->srcFormat) || isAnyRGB(c->srcFormat))
1581 ✗ c->canMMXEXTBeUsed = 0;
1582 } else
1583 7022 c->canMMXEXTBeUsed = 0;
1584
1585 8485 c->chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
1586 8485 c->chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
1587
1588 /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
1589 * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
1590 * correct scaling.
1591 * n-2 is the last chrominance sample available.
1592 * This is not perfect, but no one should notice the difference, the more
1593 * correct variant would be like the vertical one, but that would require
1594 * some special code for the first and last pixel */
1595
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8485 times.
 8485 if (flags & SWS_FAST_BILINEAR) {
1596 ✗ if (c->canMMXEXTBeUsed) {
1597 ✗ c->lumXInc += 20;
1598 ✗ c->chrXInc += 20;
1599 }
1600 // we don't use the x86 asm scaler if MMX is available
1601 ✗ else if (INLINE_MMX(cpu_flags) && c->dstBpc <= 14) {
1602 ✗ c->lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
1603 ✗ c->chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
1604 }
1605 }
1606
1607 // hardcoded for now
1608 8485 c->gamma_value = 2.2;
1609 8485 tmpFmt = AV_PIX_FMT_RGBA64LE;
1610
1611
1612
3/8
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 8485 if (!unscaled && c->gamma_flag && (srcFormat != tmpFmt || dstFormat != tmpFmt)) {
1613 SwsContext *c2;
1614 ✗ c->cascaded_context[0] = NULL;
1615
1616 ✗ ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1617 srcW, srcH, tmpFmt, 64);
1618 ✗ if (ret < 0)
1619 ✗ return ret;
1620
1621 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1622 srcW, srcH, tmpFmt,
1623 ✗ flags, NULL, NULL, c->param);
1624 ✗ if (!c->cascaded_context[0]) {
1625 ✗ return AVERROR(ENOMEM);
1626 }
1627
1628 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFmt,
1629 dstW, dstH, tmpFmt,
1630 ✗ flags, srcFilter, dstFilter, c->param);
1631
1632 ✗ if (!c->cascaded_context[1])
1633 ✗ return AVERROR(ENOMEM);
1634
1635 ✗ c2 = c->cascaded_context[1];
1636 ✗ c2->is_internal_gamma = 1;
1637 ✗ c2->gamma = alloc_gamma_tbl( c->gamma_value);
1638 ✗ c2->inv_gamma = alloc_gamma_tbl(1.f/c->gamma_value);
1639 ✗ if (!c2->gamma || !c2->inv_gamma)
1640 ✗ return AVERROR(ENOMEM);
1641
1642 // is_internal_flag is set after creating the context
1643 // to properly create the gamma convert FilterDescriptor
1644 // we have to re-initialize it
1645 ✗ ff_free_filters(c2);
1646 ✗ if ((ret = ff_init_filters(c2)) < 0) {
1647 ✗ sws_freeContext(c2);
1648 ✗ c->cascaded_context[1] = NULL;
1649 ✗ return ret;
1650 }
1651
1652 ✗ c->cascaded_context[2] = NULL;
1653 ✗ if (dstFormat != tmpFmt) {
1654 ✗ ret = av_image_alloc(c->cascaded1_tmp, c->cascaded1_tmpStride,
1655 dstW, dstH, tmpFmt, 64);
1656 ✗ if (ret < 0)
1657 ✗ return ret;
1658
1659 ✗ c->cascaded_context[2] = sws_getContext(dstW, dstH, tmpFmt,
1660 dstW, dstH, dstFormat,
1661 ✗ flags, NULL, NULL, c->param);
1662 ✗ if (!c->cascaded_context[2])
1663 ✗ return AVERROR(ENOMEM);
1664 }
1665 ✗ return 0;
1666 }
1667
1668
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 8485 times.
 8485 if (isBayer(srcFormat)) {
1669 ✗ if (!unscaled ||
1670 ✗ (dstFormat != AV_PIX_FMT_RGB24 && dstFormat != AV_PIX_FMT_YUV420P &&
1671 dstFormat != AV_PIX_FMT_RGB48)) {
1672 ✗ enum AVPixelFormat tmpFormat = isBayer16BPS(srcFormat) ? AV_PIX_FMT_RGB48 : AV_PIX_FMT_RGB24;
1673
1674 ✗ ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1675 srcW, srcH, tmpFormat, 64);
1676 ✗ if (ret < 0)
1677 ✗ return ret;
1678
1679 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
1680 srcW, srcH, tmpFormat,
1681 ✗ flags, srcFilter, NULL, c->param);
1682 ✗ if (!c->cascaded_context[0])
1683 ✗ return AVERROR(ENOMEM);
1684
1685 ✗ c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat,
1686 dstW, dstH, dstFormat,
1687 ✗ flags, NULL, dstFilter, c->param);
1688 ✗ if (!c->cascaded_context[1])
1689 ✗ return AVERROR(ENOMEM);
1690 ✗ return 0;
1691 }
1692 }
1693
1694
6/6
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✓ Branch 1 taken 868 times.
✓ Branch 2 taken 5346 times.
✓ Branch 3 taken 2271 times.
✓ Branch 4 taken 16 times.
✓ Branch 5 taken 5330 times.
 8485 if (unscaled && c->srcBpc == 8 && dstFormat == AV_PIX_FMT_GRAYF32){
1695
2/2
✓ Branch 0 taken 4096 times.
✓ Branch 1 taken 16 times.
 4112 for (i = 0; i < 256; ++i){
1696 4096 c->uint2float_lut[i] = (float)i * float_mult;
1697 }
1698 }
1699
1700 // float will be converted to uint16_t
1701
6/6
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 8485 if ((srcFormat == AV_PIX_FMT_GRAYF32BE || srcFormat == AV_PIX_FMT_GRAYF32LE) &&
1702
4/8
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 1 (!unscaled || unscaled && dstFormat != srcFormat && (srcFormat != AV_PIX_FMT_GRAYF32 ||
1703 dstFormat != AV_PIX_FMT_GRAY8))){
1704 3 c->srcBpc = 16;
1705 }
1706
1707
4/4
✓ Branch 1 taken 2149 times.
✓ Branch 2 taken 6336 times.
✓ Branch 4 taken 1291 times.
✓ Branch 5 taken 858 times.
 8485 if (CONFIG_SWSCALE_ALPHA && isALPHA(srcFormat) && !isALPHA(dstFormat)) {
1708 1291 enum AVPixelFormat tmpFormat = alphaless_fmt(srcFormat);
1709
1710
3/4
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✗ Branch 2 not taken.
✓ Branch 3 taken 618 times.
 1291 if (tmpFormat != AV_PIX_FMT_NONE && c->alphablend != SWS_ALPHA_BLEND_NONE) {
1711 ✗ if (!unscaled ||
1712 ✗ dstFormat != tmpFormat ||
1713 ✗ usesHFilter || usesVFilter ||
1714 ✗ c->srcRange != c->dstRange
1715 ) {
1716 ✗ c->cascaded_mainindex = 1;
1717 ✗ ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
1718 srcW, srcH, tmpFormat, 64);
1719 ✗ if (ret < 0)
1720 ✗ return ret;
1721
1722 ✗ c->cascaded_context[0] = alloc_set_opts(srcW, srcH, srcFormat,
1723 srcW, srcH, tmpFormat,
1724 ✗ flags, c->param);
1725 ✗ if (!c->cascaded_context[0])
1726 ✗ return AVERROR(EINVAL);
1727 ✗ c->cascaded_context[0]->alphablend = c->alphablend;
1728 ✗ ret = sws_init_context(c->cascaded_context[0], NULL , NULL);
1729 ✗ if (ret < 0)
1730 ✗ return ret;
1731
1732 ✗ c->cascaded_context[1] = alloc_set_opts(srcW, srcH, tmpFormat,
1733 dstW, dstH, dstFormat,
1734 ✗ flags, c->param);
1735 ✗ if (!c->cascaded_context[1])
1736 ✗ return AVERROR(EINVAL);
1737
1738 ✗ c->cascaded_context[1]->srcRange = c->srcRange;
1739 ✗ c->cascaded_context[1]->dstRange = c->dstRange;
1740 ✗ ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
1741 ✗ if (ret < 0)
1742 ✗ return ret;
1743
1744 ✗ return 0;
1745 }
1746 }
1747 }
1748
1749 /* alpha blend special case, note this has been split via cascaded contexts if its scaled */
1750
4/6
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 8485 if (unscaled && !usesHFilter && !usesVFilter &&
1751
1/4
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 7617 c->alphablend != SWS_ALPHA_BLEND_NONE &&
1752 ✗ isALPHA(srcFormat) &&
1753 ✗ (c->srcRange == c->dstRange || isAnyRGB(dstFormat)) &&
1754 ✗ alphaless_fmt(srcFormat) == dstFormat
1755 ) {
1756 ✗ c->convert_unscaled = ff_sws_alphablendaway;
1757
1758 ✗ if (flags & SWS_PRINT_INFO)
1759 ✗ av_log(c, AV_LOG_INFO,
1760 "using alpha blendaway %s -> %s special converter\n",
1761 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1762 ✗ return 0;
1763 }
1764
1765 /* unscaled special cases */
1766
4/6
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 8485 if (unscaled && !usesHFilter && !usesVFilter &&
1767
5/6
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 8211 (c->srcRange == c->dstRange || isAnyRGB(dstFormat) ||
1768
2/4
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✗ Branch 3 not taken.
✗ Branch 5 not taken.
✓ Branch 6 taken 594 times.
 1188 isFloat(srcFormat) || isFloat(dstFormat) || isBayer(srcFormat))){
1769
1770 7023 ff_get_unscaled_swscale(c);
1771
1772
2/2
✓ Branch 0 taken 3690 times.
✓ Branch 1 taken 3333 times.
 7023 if (c->convert_unscaled) {
1773
1/2
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 3690 if (flags & SWS_PRINT_INFO)
1774 ✗ av_log(c, AV_LOG_INFO,
1775 "using unscaled %s -> %s special converter\n",
1776 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1777 3690 return 0;
1778 }
1779 }
1780
1781 #if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
1782 #define USE_MMAP 1
1783 #else
1784 #define USE_MMAP 0
1785 #endif
1786
1787 /* precalculate horizontal scaler filter coefficients */
1788 {
1789 #if HAVE_MMXEXT_INLINE
1790 // can't downscale !!!
1791
1/4
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 4795 if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
1792 ✗ c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
1793 NULL, NULL, 8);
1794 ✗ c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
1795 NULL, NULL, NULL, 4);
1796
1797 #if USE_MMAP
1798 ✗ c->lumMmxextFilterCode = mmap(NULL, c->lumMmxextFilterCodeSize,
1799 PROT_READ | PROT_WRITE,
1800 MAP_PRIVATE | MAP_ANONYMOUS,
1801 -1, 0);
1802 ✗ c->chrMmxextFilterCode = mmap(NULL, c->chrMmxextFilterCodeSize,
1803 PROT_READ | PROT_WRITE,
1804 MAP_PRIVATE | MAP_ANONYMOUS,
1805 -1, 0);
1806 #elif HAVE_VIRTUALALLOC
1807 c->lumMmxextFilterCode = VirtualAlloc(NULL,
1808 c->lumMmxextFilterCodeSize,
1809 MEM_COMMIT,
1810 PAGE_EXECUTE_READWRITE);
1811 c->chrMmxextFilterCode = VirtualAlloc(NULL,
1812 c->chrMmxextFilterCodeSize,
1813 MEM_COMMIT,
1814 PAGE_EXECUTE_READWRITE);
1815 #else
1816 c->lumMmxextFilterCode = av_malloc(c->lumMmxextFilterCodeSize);
1817 c->chrMmxextFilterCode = av_malloc(c->chrMmxextFilterCodeSize);
1818 #endif
1819
1820 #ifdef MAP_ANONYMOUS
1821 ✗ if (c->lumMmxextFilterCode == MAP_FAILED || c->chrMmxextFilterCode == MAP_FAILED)
1822 #else
1823 if (!c->lumMmxextFilterCode || !c->chrMmxextFilterCode)
1824 #endif
1825 {
1826 ✗ av_log(c, AV_LOG_ERROR, "Failed to allocate MMX2FilterCode\n");
1827 ✗ return AVERROR(ENOMEM);
1828 }
1829
1830 ✗ if (!FF_ALLOCZ_TYPED_ARRAY(c->hLumFilter, dstW / 8 + 8) ||
1831 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilter, c->chrDstW / 4 + 8) ||
1832 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hLumFilterPos, dstW / 2 / 8 + 8) ||
1833 ✗ !FF_ALLOCZ_TYPED_ARRAY(c->hChrFilterPos, c->chrDstW / 2 / 4 + 8))
1834 ✗ goto nomem;
1835
1836 ✗ ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
1837 c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
1838 ✗ ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
1839 c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
1840
1841 #if USE_MMAP
1842 ✗ if ( mprotect(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1
1843 ✗ || mprotect(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize, PROT_EXEC | PROT_READ) == -1) {
1844 ✗ av_log(c, AV_LOG_ERROR, "mprotect failed, cannot use fast bilinear scaler\n");
1845 ✗ ret = AVERROR(EINVAL);
1846 ✗ goto fail;
1847 }
1848 #endif
1849 } else
1850 #endif /* HAVE_MMXEXT_INLINE */
1851 {
1852
2/2
✓ Branch 0 taken 83 times.
✓ Branch 1 taken 4712 times.
 4795 const int filterAlign = X86_MMX(cpu_flags) ? 4 :
1853 PPC_ALTIVEC(cpu_flags) ? 8 :
1854 have_neon(cpu_flags) ? 4 :
1855 have_lsx(cpu_flags) ? 8 :
1856 have_lasx(cpu_flags) ? 8 : 1;
1857
1858
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✓ Branch 4 taken 4795 times.
 9590 if ((ret = initFilter(&c->hLumFilter, &c->hLumFilterPos,
1859 &c->hLumFilterSize, c->lumXInc,
1860 srcW, dstW, filterAlign, 1 << 14,
1861 4795 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1862 cpu_flags, srcFilter->lumH, dstFilter->lumH,
1863
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 4795 c->param,
1864 get_local_pos(c, 0, 0, 0),
1865 get_local_pos(c, 0, 0, 0))) < 0)
1866 ✗ goto fail;
1867
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4795 times.
 4795 if (ff_shuffle_filter_coefficients(c, c->hLumFilterPos, c->hLumFilterSize, c->hLumFilter, dstW) < 0)
1868 ✗ goto nomem;
1869
1/2
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✓ Branch 4 taken 4795 times.
 9590 if ((ret = initFilter(&c->hChrFilter, &c->hChrFilterPos,
1870 &c->hChrFilterSize, c->chrXInc,
1871 c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
1872 4795 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1873 cpu_flags, srcFilter->chrH, dstFilter->chrH,
1874
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 4795 c->param,
1875 get_local_pos(c, c->chrSrcHSubSample, c->src_h_chr_pos, 0),
1876 get_local_pos(c, c->chrDstHSubSample, c->dst_h_chr_pos, 0))) < 0)
1877 ✗ goto fail;
1878
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✓ Branch 2 taken 4795 times.
 4795 if (ff_shuffle_filter_coefficients(c, c->hChrFilterPos, c->hChrFilterSize, c->hChrFilter, c->chrDstW) < 0)
1879 ✗ goto nomem;
1880 }
1881 } // initialize horizontal stuff
1882
1883 /* precalculate vertical scaler filter coefficients */
1884 {
1885
2/2
✓ Branch 0 taken 83 times.
✓ Branch 1 taken 4712 times.
 4795 const int filterAlign = X86_MMX(cpu_flags) ? 2 :
1886 PPC_ALTIVEC(cpu_flags) ? 8 :
1887 have_neon(cpu_flags) ? 2 : 1;
1888
1889
1/2
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 9590 if ((ret = initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
1890 c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
1891 4795 (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
1892 cpu_flags, srcFilter->lumV, dstFilter->lumV,
1893
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✓ Branch 1 taken 4795 times.
 4795 c->param,
1894 get_local_pos(c, 0, 0, 1),
1895 get_local_pos(c, 0, 0, 1))) < 0)
1896 ✗ goto fail;
1897
1/2
✗ Branch 3 not taken.
✓ Branch 4 taken 4795 times.
 9590 if ((ret = initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
1898 c->chrYInc, c->chrSrcH, c->chrDstH,
1899 filterAlign, (1 << 12),
1900 4795 (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
1901 cpu_flags, srcFilter->chrV, dstFilter->chrV,
1902
1/2
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✓ Branch 1 taken 4795 times.
 4795 c->param,
1903 get_local_pos(c, c->chrSrcVSubSample, c->src_v_chr_pos, 1),
1904 get_local_pos(c, c->chrDstVSubSample, c->dst_v_chr_pos, 1))) < 0)
1905
1906 ✗ goto fail;
1907
1908 #if HAVE_ALTIVEC
1909 if (!FF_ALLOC_TYPED_ARRAY(c->vYCoeffsBank, c->vLumFilterSize * c->dstH) ||
1910 !FF_ALLOC_TYPED_ARRAY(c->vCCoeffsBank, c->vChrFilterSize * c->chrDstH))
1911 goto nomem;
1912
1913 for (i = 0; i < c->vLumFilterSize * c->dstH; i++) {
1914 int j;
1915 short *p = (short *)&c->vYCoeffsBank[i];
1916 for (j = 0; j < 8; j++)
1917 p[j] = c->vLumFilter[i];
1918 }
1919
1920 for (i = 0; i < c->vChrFilterSize * c->chrDstH; i++) {
1921 int j;
1922 short *p = (short *)&c->vCCoeffsBank[i];
1923 for (j = 0; j < 8; j++)
1924 p[j] = c->vChrFilter[i];
1925 }
1926 #endif
1927 }
1928
1929
2/2
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 23975 for (i = 0; i < 4; i++)
1930
1/2
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 19180 if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], c->dstW + 3))
1931 ✗ goto nomem;
1932
1933
4/4
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✓ Branch 2 taken 4276 times.
✓ Branch 4 taken 296 times.
✓ Branch 5 taken 223 times.
 4795 c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) ? 1 : 0;
1934
1935 // 64 / c->scalingBpp is the same as 16 / sizeof(scaling_intermediate)
1936 4795 c->uv_off = (dst_stride>>1) + 64 / (c->dstBpc &~ 7);
1937 4795 c->uv_offx2 = dst_stride + 16;
1938
1939
1/2
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 4795 av_assert0(c->chrDstH <= dstH);
1940
1941
1/2
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✓ Branch 1 taken 4795 times.
 4795 if (flags & SWS_PRINT_INFO) {
1942 ✗ const char *scaler = NULL, *cpucaps;
1943
1944 ✗ for (i = 0; i < FF_ARRAY_ELEMS(scale_algorithms); i++) {
1945 ✗ if (flags & scale_algorithms[i].flag) {
1946 ✗ scaler = scale_algorithms[i].description;
1947 ✗ break;
1948 }
1949 }
1950 ✗ if (!scaler)
1951 ✗ scaler = "ehh flags invalid?!";
1952 ✗ av_log(c, AV_LOG_INFO, "%s scaler, from %s to %s%s ",
1953 scaler,
1954 av_get_pix_fmt_name(srcFormat),
1955 ✗ dstFormat == AV_PIX_FMT_BGR555 || dstFormat == AV_PIX_FMT_BGR565 ||
1956 ✗ dstFormat == AV_PIX_FMT_RGB444BE || dstFormat == AV_PIX_FMT_RGB444LE ||
1957 ✗ dstFormat == AV_PIX_FMT_BGR444BE || dstFormat == AV_PIX_FMT_BGR444LE ?
1958 "dithered " : "",
1959 av_get_pix_fmt_name(dstFormat));
1960
1961 ✗ if (INLINE_MMXEXT(cpu_flags))
1962 ✗ cpucaps = "MMXEXT";
1963 ✗ else if (INLINE_MMX(cpu_flags))
1964 ✗ cpucaps = "MMX";
1965 else if (PPC_ALTIVEC(cpu_flags))
1966 cpucaps = "AltiVec";
1967 else
1968 ✗ cpucaps = "C";
1969
1970 ✗ av_log(c, AV_LOG_INFO, "using %s\n", cpucaps);
1971
1972 ✗ av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
1973 ✗ av_log(c, AV_LOG_DEBUG,
1974 "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1975 c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
1976 ✗ av_log(c, AV_LOG_DEBUG,
1977 "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1978 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
1979 c->chrXInc, c->chrYInc);
1980 }
1981
1982 4795 ff_sws_init_scale(c);
1983
1984 4795 return ff_init_filters(c);
1985 ✗ nomem:
1986 ✗ ret = AVERROR(ENOMEM);
1987 ✗ fail: // FIXME replace things by appropriate error codes
1988 ✗ if (ret == RETCODE_USE_CASCADE) {
1989 ✗ int tmpW = sqrt(srcW * (int64_t)dstW);
1990 ✗ int tmpH = sqrt(srcH * (int64_t)dstH);
1991 ✗ enum AVPixelFormat tmpFormat = AV_PIX_FMT_YUV420P;
1992
1993 ✗ if (isALPHA(srcFormat))
1994 ✗ tmpFormat = AV_PIX_FMT_YUVA420P;
1995
1996 ✗ if (srcW*(int64_t)srcH <= 4LL*dstW*dstH)
1997 ✗ return AVERROR(EINVAL);
1998
1999 ✗ ret = av_image_alloc(c->cascaded_tmp, c->cascaded_tmpStride,
2000 tmpW, tmpH, tmpFormat, 64);
2001 ✗ if (ret < 0)
2002 ✗ return ret;
2003
2004 ✗ c->cascaded_context[0] = sws_getContext(srcW, srcH, srcFormat,
2005 tmpW, tmpH, tmpFormat,
2006 ✗ flags, srcFilter, NULL, c->param);
2007 ✗ if (!c->cascaded_context[0])
2008 ✗ return AVERROR(ENOMEM);
2009
2010 ✗ c->cascaded_context[1] = sws_getContext(tmpW, tmpH, tmpFormat,
2011 dstW, dstH, dstFormat,
2012 ✗ flags, NULL, dstFilter, c->param);
2013 ✗ if (!c->cascaded_context[1])
2014 ✗ return AVERROR(ENOMEM);
2015 ✗ return 0;
2016 }
2017 ✗ return ret;
2018 }
2019
2020 365 static int context_init_threaded(SwsContext *c,
2021 SwsFilter *src_filter, SwsFilter *dst_filter)
2022 {
2023 int ret;
2024
2025 365 ret = avpriv_slicethread_create(&c->slicethread, (void*)c,
2026 ff_sws_slice_worker, NULL, c->nb_threads);
2027
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✗ Branch 0 not taken.
✓ Branch 1 taken 365 times.
 365 if (ret == AVERROR(ENOSYS)) {
2028 ✗ c->nb_threads = 1;
2029 ✗ return 0;
2030
1/2
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✓ Branch 1 taken 365 times.
 365 } else if (ret < 0)
2031 ✗ return ret;
2032
2033 365 c->nb_threads = ret;
2034
2035 365 c->slice_ctx = av_calloc(c->nb_threads, sizeof(*c->slice_ctx));
2036 365 c->slice_err = av_calloc(c->nb_threads, sizeof(*c->slice_err));
2037
2/4
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✗ Branch 2 not taken.
✓ Branch 3 taken 365 times.
 365 if (!c->slice_ctx || !c->slice_err)
2038 ✗ return AVERROR(ENOMEM);
2039
2040
2/2
✓ Branch 0 taken 3230 times.
✓ Branch 1 taken 360 times.
 3590 for (int i = 0; i < c->nb_threads; i++) {
2041 3230 c->slice_ctx[i] = sws_alloc_context();
2042
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3230 times.
 3230 if (!c->slice_ctx[i])
2043 ✗ return AVERROR(ENOMEM);
2044
2045 3230 c->nb_slice_ctx++;
2046 3230 c->slice_ctx[i]->parent = c;
2047
2048 3230 ret = av_opt_copy((void*)c->slice_ctx[i], (void*)c);
2049
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3230 times.
 3230 if (ret < 0)
2050 ✗ return ret;
2051
2052 3230 c->slice_ctx[i]->nb_threads = 1;
2053
2054 3230 ret = sws_init_single_context(c->slice_ctx[i], src_filter, dst_filter);
2055
1/2
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✓ Branch 1 taken 3230 times.
 3230 if (ret < 0)
2056 ✗ return ret;
2057
2058
2/2
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✓ Branch 1 taken 3225 times.
 3230 if (c->slice_ctx[i]->dither == SWS_DITHER_ED) {
2059 5 av_log(c, AV_LOG_VERBOSE,
2060 "Error-diffusion dither is in use, scaling will be single-threaded.");
2061 5 break;
2062 }
2063 }
2064
2065 365 return 0;
2066 }
2067
2068 5620 av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
2069 SwsFilter *dstFilter)
2070 {
2071 static AVOnce rgb2rgb_once = AV_ONCE_INIT;
2072 enum AVPixelFormat src_format, dst_format;
2073 int ret;
2074
2075 5620 c->frame_src = av_frame_alloc();
2076 5620 c->frame_dst = av_frame_alloc();
2077
2/4
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✗ Branch 2 not taken.
✓ Branch 3 taken 5620 times.
 5620 if (!c->frame_src || !c->frame_dst)
2078 ✗ return AVERROR(ENOMEM);
2079
2080
1/2
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✓ Branch 2 taken 5620 times.
 5620 if (ff_thread_once(&rgb2rgb_once, ff_sws_rgb2rgb_init) != 0)
2081 ✗ return AVERROR_UNKNOWN;
2082
2083 5620 src_format = c->srcFormat;
2084 5620 dst_format = c->dstFormat;
2085 5620 c->srcRange |= handle_jpeg(&c->srcFormat);
2086 5620 c->dstRange |= handle_jpeg(&c->dstFormat);
2087
2088
4/4
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✓ Branch 1 taken 156 times.
✓ Branch 2 taken 126 times.
✓ Branch 3 taken 5338 times.
 5620 if (src_format != c->srcFormat || dst_format != c->dstFormat)
2089 282 av_log(c, AV_LOG_WARNING, "deprecated pixel format used, make sure you did set range correctly\n");
2090
2091
2/2
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✓ Branch 1 taken 5255 times.
 5620 if (c->nb_threads != 1) {
2092 365 ret = context_init_threaded(c, srcFilter, dstFilter);
2093
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✗ Branch 3 not taken.
 365 if (ret < 0 || c->nb_threads > 1)
2094 365 return ret;
2095 // threading disabled in this build, init as single-threaded
2096 }
2097
2098 5255 return sws_init_single_context(c, srcFilter, dstFilter);
2099 }
2100
2101 1635 SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat,
2102 int dstW, int dstH, enum AVPixelFormat dstFormat,
2103 int flags, SwsFilter *srcFilter,
2104 SwsFilter *dstFilter, const double *param)
2105 {
2106 SwsContext *c;
2107
2108 1635 c = alloc_set_opts(srcW, srcH, srcFormat,
2109 dstW, dstH, dstFormat,
2110 flags, param);
2111
1/2
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 1635 if (!c)
2112 ✗ return NULL;
2113
2114
1/2
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✓ Branch 2 taken 1635 times.
 1635 if (sws_init_context(c, srcFilter, dstFilter) < 0) {
2115 ✗ sws_freeContext(c);
2116 ✗ return NULL;
2117 }
2118
2119 1635 return c;
2120 }
2121
2122 ✗ static int isnan_vec(SwsVector *a)
2123 {
2124 int i;
2125 ✗ for (i=0; i<a->length; i++)
2126 ✗ if (isnan(a->coeff[i]))
2127 ✗ return 1;
2128 ✗ return 0;
2129 }
2130
2131 ✗ static void makenan_vec(SwsVector *a)
2132 {
2133 int i;
2134 ✗ for (i=0; i<a->length; i++)
2135 ✗ a->coeff[i] = NAN;
2136 ✗ }
2137
2138 ✗ SwsVector *sws_allocVec(int length)
2139 {
2140 SwsVector *vec;
2141
2142 ✗ if(length <= 0 || length > INT_MAX/ sizeof(double))
2143 ✗ return NULL;
2144
2145 ✗ vec = av_malloc(sizeof(SwsVector));
2146 ✗ if (!vec)
2147 ✗ return NULL;
2148 ✗ vec->length = length;
2149 ✗ vec->coeff = av_malloc(sizeof(double) * length);
2150 ✗ if (!vec->coeff)
2151 ✗ av_freep(&vec);
2152 ✗ return vec;
2153 }
2154
2155 ✗ SwsVector *sws_getGaussianVec(double variance, double quality)
2156 {
2157 ✗ const int length = (int)(variance * quality + 0.5) | 1;
2158 int i;
2159 ✗ double middle = (length - 1) * 0.5;
2160 SwsVector *vec;
2161
2162 ✗ if(variance < 0 || quality < 0)
2163 ✗ return NULL;
2164
2165 ✗ vec = sws_allocVec(length);
2166
2167 ✗ if (!vec)
2168 ✗ return NULL;
2169
2170 ✗ for (i = 0; i < length; i++) {
2171 ✗ double dist = i - middle;
2172 ✗ vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
2173 ✗ sqrt(2 * variance * M_PI);
2174 }
2175
2176 ✗ sws_normalizeVec(vec, 1.0);
2177
2178 ✗ return vec;
2179 }
2180
2181 /**
2182 * Allocate and return a vector with length coefficients, all
2183 * with the same value c.
2184 */
2185 static
2186 ✗ SwsVector *sws_getConstVec(double c, int length)
2187 {
2188 int i;
2189 ✗ SwsVector *vec = sws_allocVec(length);
2190
2191 ✗ if (!vec)
2192 ✗ return NULL;
2193
2194 ✗ for (i = 0; i < length; i++)
2195 ✗ vec->coeff[i] = c;
2196
2197 ✗ return vec;
2198 }
2199
2200 /**
2201 * Allocate and return a vector with just one coefficient, with
2202 * value 1.0.
2203 */
2204 static
2205 ✗ SwsVector *sws_getIdentityVec(void)
2206 {
2207 ✗ return sws_getConstVec(1.0, 1);
2208 }
2209
2210 ✗ static double sws_dcVec(SwsVector *a)
2211 {
2212 int i;
2213 ✗ double sum = 0;
2214
2215 ✗ for (i = 0; i < a->length; i++)
2216 ✗ sum += a->coeff[i];
2217
2218 ✗ return sum;
2219 }
2220
2221 ✗ void sws_scaleVec(SwsVector *a, double scalar)
2222 {
2223 int i;
2224
2225 ✗ for (i = 0; i < a->length; i++)
2226 ✗ a->coeff[i] *= scalar;
2227 ✗ }
2228
2229 ✗ void sws_normalizeVec(SwsVector *a, double height)
2230 {
2231 ✗ sws_scaleVec(a, height / sws_dcVec(a));
2232 ✗ }
2233
2234 ✗ static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
2235 {
2236 ✗ int length = FFMAX(a->length, b->length);
2237 int i;
2238 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2239
2240 ✗ if (!vec)
2241 ✗ return NULL;
2242
2243 ✗ for (i = 0; i < a->length; i++)
2244 ✗ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
2245 ✗ for (i = 0; i < b->length; i++)
2246 ✗ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
2247
2248 ✗ return vec;
2249 }
2250
2251 /* shift left / or right if "shift" is negative */
2252 ✗ static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
2253 {
2254 ✗ int length = a->length + FFABS(shift) * 2;
2255 int i;
2256 ✗ SwsVector *vec = sws_getConstVec(0.0, length);
2257
2258 ✗ if (!vec)
2259 ✗ return NULL;
2260
2261 ✗ for (i = 0; i < a->length; i++) {
2262 ✗ vec->coeff[i + (length - 1) / 2 -
2263 ✗ (a->length - 1) / 2 - shift] = a->coeff[i];
2264 }
2265
2266 ✗ return vec;
2267 }
2268
2269 static
2270 ✗ void sws_shiftVec(SwsVector *a, int shift)
2271 {
2272 ✗ SwsVector *shifted = sws_getShiftedVec(a, shift);
2273 ✗ if (!shifted) {
2274 ✗ makenan_vec(a);
2275 ✗ return;
2276 }
2277 ✗ av_free(a->coeff);
2278 ✗ a->coeff = shifted->coeff;
2279 ✗ a->length = shifted->length;
2280 ✗ av_free(shifted);
2281 }
2282
2283 static
2284 ✗ void sws_addVec(SwsVector *a, SwsVector *b)
2285 {
2286 ✗ SwsVector *sum = sws_sumVec(a, b);
2287 ✗ if (!sum) {
2288 ✗ makenan_vec(a);
2289 ✗ return;
2290 }
2291 ✗ av_free(a->coeff);
2292 ✗ a->coeff = sum->coeff;
2293 ✗ a->length = sum->length;
2294 ✗ av_free(sum);
2295 }
2296
2297 /**
2298 * Print with av_log() a textual representation of the vector a
2299 * if log_level <= av_log_level.
2300 */
2301 static
2302 ✗ void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
2303 {
2304 int i;
2305 ✗ double max = 0;
2306 ✗ double min = 0;
2307 double range;
2308
2309 ✗ for (i = 0; i < a->length; i++)
2310 ✗ if (a->coeff[i] > max)
2311 ✗ max = a->coeff[i];
2312
2313 ✗ for (i = 0; i < a->length; i++)
2314 ✗ if (a->coeff[i] < min)
2315 ✗ min = a->coeff[i];
2316
2317 ✗ range = max - min;
2318
2319 ✗ for (i = 0; i < a->length; i++) {
2320 ✗ int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
2321 ✗ av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
2322 ✗ for (; x > 0; x--)
2323 ✗ av_log(log_ctx, log_level, " ");
2324 ✗ av_log(log_ctx, log_level, "|\n");
2325 }
2326 ✗ }
2327
2328 ✗ void sws_freeVec(SwsVector *a)
2329 {
2330 ✗ if (!a)
2331 ✗ return;
2332 ✗ av_freep(&a->coeff);
2333 ✗ a->length = 0;
2334 ✗ av_free(a);
2335 }
2336
2337 ✗ void sws_freeFilter(SwsFilter *filter)
2338 {
2339 ✗ if (!filter)
2340 ✗ return;
2341
2342 ✗ sws_freeVec(filter->lumH);
2343 ✗ sws_freeVec(filter->lumV);
2344 ✗ sws_freeVec(filter->chrH);
2345 ✗ sws_freeVec(filter->chrV);
2346 ✗ av_free(filter);
2347 }
2348
2349 ✗ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2350 float lumaSharpen, float chromaSharpen,
2351 float chromaHShift, float chromaVShift,
2352 int verbose)
2353 {
2354 ✗ SwsFilter *filter = av_malloc(sizeof(SwsFilter));
2355 ✗ if (!filter)
2356 ✗ return NULL;
2357
2358 ✗ if (lumaGBlur != 0.0) {
2359 ✗ filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
2360 ✗ filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
2361 } else {
2362 ✗ filter->lumH = sws_getIdentityVec();
2363 ✗ filter->lumV = sws_getIdentityVec();
2364 }
2365
2366 ✗ if (chromaGBlur != 0.0) {
2367 ✗ filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
2368 ✗ filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
2369 } else {
2370 ✗ filter->chrH = sws_getIdentityVec();
2371 ✗ filter->chrV = sws_getIdentityVec();
2372 }
2373
2374 ✗ if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
2375 ✗ goto fail;
2376
2377 ✗ if (chromaSharpen != 0.0) {
2378 ✗ SwsVector *id = sws_getIdentityVec();
2379 ✗ if (!id)
2380 ✗ goto fail;
2381 ✗ sws_scaleVec(filter->chrH, -chromaSharpen);
2382 ✗ sws_scaleVec(filter->chrV, -chromaSharpen);
2383 ✗ sws_addVec(filter->chrH, id);
2384 ✗ sws_addVec(filter->chrV, id);
2385 ✗ sws_freeVec(id);
2386 }
2387
2388 ✗ if (lumaSharpen != 0.0) {
2389 ✗ SwsVector *id = sws_getIdentityVec();
2390 ✗ if (!id)
2391 ✗ goto fail;
2392 ✗ sws_scaleVec(filter->lumH, -lumaSharpen);
2393 ✗ sws_scaleVec(filter->lumV, -lumaSharpen);
2394 ✗ sws_addVec(filter->lumH, id);
2395 ✗ sws_addVec(filter->lumV, id);
2396 ✗ sws_freeVec(id);
2397 }
2398
2399 ✗ if (chromaHShift != 0.0)
2400 ✗ sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
2401
2402 ✗ if (chromaVShift != 0.0)
2403 ✗ sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
2404
2405 ✗ sws_normalizeVec(filter->chrH, 1.0);
2406 ✗ sws_normalizeVec(filter->chrV, 1.0);
2407 ✗ sws_normalizeVec(filter->lumH, 1.0);
2408 ✗ sws_normalizeVec(filter->lumV, 1.0);
2409
2410 ✗ if (isnan_vec(filter->chrH) ||
2411 ✗ isnan_vec(filter->chrV) ||
2412 ✗ isnan_vec(filter->lumH) ||
2413 ✗ isnan_vec(filter->lumV))
2414 ✗ goto fail;
2415
2416 ✗ if (verbose)
2417 ✗ sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
2418 ✗ if (verbose)
2419 ✗ sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
2420
2421 ✗ return filter;
2422
2423 ✗ fail:
2424 ✗ sws_freeVec(filter->lumH);
2425 ✗ sws_freeVec(filter->lumV);
2426 ✗ sws_freeVec(filter->chrH);
2427 ✗ sws_freeVec(filter->chrV);
2428 ✗ av_freep(&filter);
2429 ✗ return NULL;
2430 }
2431
2432 80399 void sws_freeContext(SwsContext *c)
2433 {
2434 int i;
2435
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 80399 if (!c)
2436 64597 return;
2437
2438
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 19032 for (i = 0; i < c->nb_slice_ctx; i++)
2439 3230 sws_freeContext(c->slice_ctx[i]);
2440 15802 av_freep(&c->slice_ctx);
2441 15802 av_freep(&c->slice_err);
2442
2443 15802 avpriv_slicethread_free(&c->slicethread);
2444
2445
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 79010 for (i = 0; i < 4; i++)
2446 63208 av_freep(&c->dither_error[i]);
2447
2448 15802 av_frame_free(&c->frame_src);
2449 15802 av_frame_free(&c->frame_dst);
2450
2451 15802 av_freep(&c->src_ranges.ranges);
2452
2453 15802 av_freep(&c->vLumFilter);
2454 15802 av_freep(&c->vChrFilter);
2455 15802 av_freep(&c->hLumFilter);
2456 15802 av_freep(&c->hChrFilter);
2457 #if HAVE_ALTIVEC
2458 av_freep(&c->vYCoeffsBank);
2459 av_freep(&c->vCCoeffsBank);
2460 #endif
2461
2462 15802 av_freep(&c->vLumFilterPos);
2463 15802 av_freep(&c->vChrFilterPos);
2464 15802 av_freep(&c->hLumFilterPos);
2465 15802 av_freep(&c->hChrFilterPos);
2466
2467 #if HAVE_MMX_INLINE
2468 #if USE_MMAP
2469
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 15802 if (c->lumMmxextFilterCode)
2470 ✗ munmap(c->lumMmxextFilterCode, c->lumMmxextFilterCodeSize);
2471
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 15802 if (c->chrMmxextFilterCode)
2472 ✗ munmap(c->chrMmxextFilterCode, c->chrMmxextFilterCodeSize);
2473 #elif HAVE_VIRTUALALLOC
2474 if (c->lumMmxextFilterCode)
2475 VirtualFree(c->lumMmxextFilterCode, 0, MEM_RELEASE);
2476 if (c->chrMmxextFilterCode)
2477 VirtualFree(c->chrMmxextFilterCode, 0, MEM_RELEASE);
2478 #else
2479 av_free(c->lumMmxextFilterCode);
2480 av_free(c->chrMmxextFilterCode);
2481 #endif
2482 15802 c->lumMmxextFilterCode = NULL;
2483 15802 c->chrMmxextFilterCode = NULL;
2484 #endif /* HAVE_MMX_INLINE */
2485
2486 15802 av_freep(&c->yuvTable);
2487 15802 av_freep(&c->formatConvBuffer);
2488
2489 15802 sws_freeContext(c->cascaded_context[0]);
2490 15802 sws_freeContext(c->cascaded_context[1]);
2491 15802 sws_freeContext(c->cascaded_context[2]);
2492 15802 memset(c->cascaded_context, 0, sizeof(c->cascaded_context));
2493 15802 av_freep(&c->cascaded_tmp[0]);
2494 15802 av_freep(&c->cascaded1_tmp[0]);
2495
2496 15802 av_freep(&c->gamma);
2497 15802 av_freep(&c->inv_gamma);
2498
2499 15802 av_freep(&c->rgb0_scratch);
2500 15802 av_freep(&c->xyz_scratch);
2501
2502 15802 ff_free_filters(c);
2503
2504 15802 av_free(c);
2505 }
2506
2507 ✗ struct SwsContext *sws_getCachedContext(struct SwsContext *context, int srcW,
2508 int srcH, enum AVPixelFormat srcFormat,
2509 int dstW, int dstH,
2510 enum AVPixelFormat dstFormat, int flags,
2511 SwsFilter *srcFilter,
2512 SwsFilter *dstFilter,
2513 const double *param)
2514 {
2515 static const double default_param[2] = { SWS_PARAM_DEFAULT,
2516 SWS_PARAM_DEFAULT };
2517 ✗ int64_t src_h_chr_pos = -513, dst_h_chr_pos = -513,
2518 ✗ src_v_chr_pos = -513, dst_v_chr_pos = -513;
2519
2520 ✗ if (!param)
2521 ✗ param = default_param;
2522
2523 ✗ if (context &&
2524 ✗ (context->srcW != srcW ||
2525 ✗ context->srcH != srcH ||
2526 ✗ context->srcFormat != srcFormat ||
2527 ✗ context->dstW != dstW ||
2528 ✗ context->dstH != dstH ||
2529 ✗ context->dstFormat != dstFormat ||
2530 ✗ context->flags != flags ||
2531 ✗ context->param[0] != param[0] ||
2532 ✗ context->param[1] != param[1])) {
2533
2534 ✗ av_opt_get_int(context, "src_h_chr_pos", 0, &src_h_chr_pos);
2535 ✗ av_opt_get_int(context, "src_v_chr_pos", 0, &src_v_chr_pos);
2536 ✗ av_opt_get_int(context, "dst_h_chr_pos", 0, &dst_h_chr_pos);
2537 ✗ av_opt_get_int(context, "dst_v_chr_pos", 0, &dst_v_chr_pos);
2538 ✗ sws_freeContext(context);
2539 ✗ context = NULL;
2540 }
2541
2542 ✗ if (!context) {
2543 ✗ if (!(context = sws_alloc_context()))
2544 ✗ return NULL;
2545 ✗ context->srcW = srcW;
2546 ✗ context->srcH = srcH;
2547 ✗ context->srcFormat = srcFormat;
2548 ✗ context->dstW = dstW;
2549 ✗ context->dstH = dstH;
2550 ✗ context->dstFormat = dstFormat;
2551 ✗ context->flags = flags;
2552 ✗ context->param[0] = param[0];
2553 ✗ context->param[1] = param[1];
2554
2555 ✗ av_opt_set_int(context, "src_h_chr_pos", src_h_chr_pos, 0);
2556 ✗ av_opt_set_int(context, "src_v_chr_pos", src_v_chr_pos, 0);
2557 ✗ av_opt_set_int(context, "dst_h_chr_pos", dst_h_chr_pos, 0);
2558 ✗ av_opt_set_int(context, "dst_v_chr_pos", dst_v_chr_pos, 0);
2559
2560 ✗ if (sws_init_context(context, srcFilter, dstFilter) < 0) {
2561 ✗ sws_freeContext(context);
2562 ✗ return NULL;
2563 }
2564 }
2565 ✗ return context;
2566 }
2567
2568 42745 int ff_range_add(RangeList *rl, unsigned int start, unsigned int len)
2569 {
2570 Range *tmp;
2571 unsigned int idx;
2572
2573 /* find the first existing range after the new one */
2574
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 42745 for (idx = 0; idx < rl->nb_ranges; idx++)
2575 ✗ if (rl->ranges[idx].start > start)
2576 ✗ break;
2577
2578 /* check for overlap */
2579
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 42745 if (idx > 0) {
2580 ✗ Range *prev = &rl->ranges[idx - 1];
2581 ✗ if (prev->start + prev->len > start)
2582 ✗ return AVERROR(EINVAL);
2583 }
2584
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 42745 if (idx < rl->nb_ranges) {
2585 ✗ Range *next = &rl->ranges[idx];
2586 ✗ if (start + len > next->start)
2587 ✗ return AVERROR(EINVAL);
2588 }
2589
2590 42745 tmp = av_fast_realloc(rl->ranges, &rl->ranges_allocated,
2591 42745 (rl->nb_ranges + 1) * sizeof(*rl->ranges));
2592
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 42745 if (!tmp)
2593 ✗ return AVERROR(ENOMEM);
2594 42745 rl->ranges = tmp;
2595
2596 42745 memmove(rl->ranges + idx + 1, rl->ranges + idx,
2597 42745 sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2598 42745 rl->ranges[idx].start = start;
2599 42745 rl->ranges[idx].len = len;
2600 42745 rl->nb_ranges++;
2601
2602 /* merge ranges */
2603
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 42745 if (idx > 0) {
2604 ✗ Range *prev = &rl->ranges[idx - 1];
2605 ✗ Range *cur = &rl->ranges[idx];
2606 ✗ if (prev->start + prev->len == cur->start) {
2607 ✗ prev->len += cur->len;
2608 ✗ memmove(rl->ranges + idx - 1, rl->ranges + idx,
2609 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx));
2610 ✗ rl->nb_ranges--;
2611 ✗ idx--;
2612 }
2613 }
2614
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 42745 if (idx < rl->nb_ranges - 1) {
2615 ✗ Range *cur = &rl->ranges[idx];
2616 ✗ Range *next = &rl->ranges[idx + 1];
2617 ✗ if (cur->start + cur->len == next->start) {
2618 ✗ cur->len += next->len;
2619 ✗ memmove(rl->ranges + idx, rl->ranges + idx + 1,
2620 ✗ sizeof(*rl->ranges) * (rl->nb_ranges - idx - 1));
2621 ✗ rl->nb_ranges--;
2622 }
2623 }
2624
2625 42745 return 0;
2626 }
2627