FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/swscale.c
Date: 2026-08-29 16:27:19
Exec Total Coverage
Lines: 671 926 72.5%
Functions: 33 41 80.5%
Branches: 352 633 55.6%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2001-2011 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 <stdint.h>
22 #include <stdio.h>
23 #include <string.h>
24
25 #include "libavutil/avassert.h"
26 #include "libavutil/bswap.h"
27 #include "libavutil/common.h"
28 #include "libavutil/cpu.h"
29 #include "libavutil/emms.h"
30 #include "libavutil/intreadwrite.h"
31 #include "libavutil/mem.h"
32 #include "libavutil/mem_internal.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/hwcontext.h"
35 #include "config.h"
36 #include "swscale_internal.h"
37 #include "swscale.h"
38 #if CONFIG_VULKAN
39 #include "vulkan/ops.h"
40 #endif
41
42 DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_128)[9][8] = {
43 { 36, 68, 60, 92, 34, 66, 58, 90, },
44 { 100, 4, 124, 28, 98, 2, 122, 26, },
45 { 52, 84, 44, 76, 50, 82, 42, 74, },
46 { 116, 20, 108, 12, 114, 18, 106, 10, },
47 { 32, 64, 56, 88, 38, 70, 62, 94, },
48 { 96, 0, 120, 24, 102, 6, 126, 30, },
49 { 48, 80, 40, 72, 54, 86, 46, 78, },
50 { 112, 16, 104, 8, 118, 22, 110, 14, },
51 { 36, 68, 60, 92, 34, 66, 58, 90, },
52 };
53
54 DECLARE_ALIGNED(8, static const uint8_t, sws_pb_64)[8] = {
55 64, 64, 64, 64, 64, 64, 64, 64
56 };
57
58 26532 static av_always_inline void fillPlane(uint8_t *plane, int stride, int width,
59 int height, int y, uint8_t val)
60 {
61 int i;
62 26532 uint8_t *ptr = plane + stride * y;
63
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 2188984 for (i = 0; i < height; i++) {
64 2162452 memset(ptr, val, width);
65 2162452 ptr += stride;
66 }
67 26532 }
68
69 7900255 static void hScale16To19_c(SwsInternal *c, int16_t *_dst, int dstW,
70 const uint8_t *_src, const int16_t *filter,
71 const int32_t *filterPos, int filterSize)
72 {
73 7900255 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->opts.src_format);
74 int i;
75 7900255 int32_t *dst = (int32_t *) _dst;
76 7900255 const uint16_t *src = (const uint16_t *) _src;
77 7900255 int bits = desc->comp[0].depth - 1;
78 7900255 int sh = bits - 4;
79
80
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 7900255 if ((isAnyRGB(c->opts.src_format) || c->opts.src_format==AV_PIX_FMT_PAL8) && desc->comp[0].depth<16) {
81 2015038 sh = 9;
82
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 5885217 } else if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) { /* float input are process like uint 16bpc */
83 32221 sh = 16 - 1 - 4;
84 }
85
86
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 2386760538 for (i = 0; i < dstW; i++) {
87 int j;
88 2378860283 int srcPos = filterPos[i];
89 2378860283 int val = 0;
90
91
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 6966653750 for (j = 0; j < filterSize; j++) {
92 4587793467 val += src[srcPos + j] * filter[filterSize * i + j];
93 }
94 // filter=14 bit, input=16 bit, output=30 bit, >> 11 makes 19 bit
95 2378860283 dst[i] = FFMIN(val >> sh, (1 << 19) - 1);
96 }
97 7900255 }
98
99 36695058 static void hScale16To15_c(SwsInternal *c, int16_t *dst, int dstW,
100 const uint8_t *_src, const int16_t *filter,
101 const int32_t *filterPos, int filterSize)
102 {
103 36695058 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->opts.src_format);
104 int i;
105 36695058 const uint16_t *src = (const uint16_t *) _src;
106 36695058 int sh = desc->comp[0].depth - 1;
107
108
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 36695058 if (sh<15) {
109
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 30222610 sh = isAnyRGB(c->opts.src_format) || c->opts.src_format==AV_PIX_FMT_PAL8 ? 13 : (desc->comp[0].depth - 1);
110
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 6472448 } else if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) { /* float input are process like uint 16bpc */
111 ✗ sh = 16 - 1;
112 }
113
114
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 11298959429 for (i = 0; i < dstW; i++) {
115 int j;
116 11262264371 int srcPos = filterPos[i];
117 11262264371 int val = 0;
118
119
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 31990828216 for (j = 0; j < filterSize; j++) {
120 20728563845 val += src[srcPos + j] * filter[filterSize * i + j];
121 }
122 // filter=14 bit, input=16 bit, output=30 bit, >> 15 makes 15 bit
123 11262264371 dst[i] = FFMIN(val >> sh, (1 << 15) - 1);
124 }
125 36695058 }
126
127 // bilinear / bicubic scaling
128 22423310 static void hScale8To15_c(SwsInternal *c, int16_t *dst, int dstW,
129 const uint8_t *src, const int16_t *filter,
130 const int32_t *filterPos, int filterSize)
131 {
132 int i;
133
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 6858494574 for (i = 0; i < dstW; i++) {
134 int j;
135 6836071264 int srcPos = filterPos[i];
136 6836071264 int val = 0;
137
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 24036974794 for (j = 0; j < filterSize; j++) {
138 17200903530 val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
139 }
140 6836071264 dst[i] = FFMIN(val >> 7, (1 << 15) - 1); // the cubic equation does overflow ...
141 }
142 22423310 }
143
144 2624580 static void hScale8To19_c(SwsInternal *c, int16_t *_dst, int dstW,
145 const uint8_t *src, const int16_t *filter,
146 const int32_t *filterPos, int filterSize)
147 {
148 int i;
149 2624580 int32_t *dst = (int32_t *) _dst;
150
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 794734624 for (i = 0; i < dstW; i++) {
151 int j;
152 792110044 int srcPos = filterPos[i];
153 792110044 int val = 0;
154
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 2329768936 for (j = 0; j < filterSize; j++) {
155 1537658892 val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
156 }
157 792110044 dst[i] = FFMIN(val >> 3, (1 << 19) - 1); // the cubic equation does overflow ...
158 }
159 2624580 }
160
161 // FIXME all pal and rgb srcFormats could do this conversion as well
162 // FIXME all scalers more complex than bilinear could do half of this transform
163 603833 static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width,
164 uint32_t _coeff, int64_t _offset)
165 {
166 603833 uint16_t coeff = _coeff;
167 603833 int32_t offset = _offset;
168 int i;
169
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 147209645 for (i = 0; i < width; i++) {
170 146605812 int U = (dstU[i] * coeff + offset) >> 14;
171 146605812 int V = (dstV[i] * coeff + offset) >> 14;
172 146605812 dstU[i] = FFMIN(U, (1 << 15) - 1);
173 146605812 dstV[i] = FFMIN(V, (1 << 15) - 1);
174 }
175 603833 }
176
177 361955 static void chrRangeFromJpeg_c(int16_t *dstU, int16_t *dstV, int width,
178 uint32_t _coeff, int64_t _offset)
179 {
180 361955 uint16_t coeff = _coeff;
181 361955 int32_t offset = _offset;
182 int i;
183
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 90194573 for (i = 0; i < width; i++) {
184 89832618 dstU[i] = (dstU[i] * coeff + offset) >> 14;
185 89832618 dstV[i] = (dstV[i] * coeff + offset) >> 14;
186 }
187 361955 }
188
189 1566287 static void lumRangeToJpeg_c(int16_t *dst, int width,
190 uint32_t _coeff, int64_t _offset)
191 {
192 1566287 uint16_t coeff = _coeff;
193 1566287 int32_t offset = _offset;
194 int i;
195
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 543983615 for (i = 0; i < width; i++) {
196 542417328 int Y = (dst[i] * coeff + offset) >> 14;
197 542417328 dst[i] = FFMIN(Y, (1 << 15) - 1);
198 }
199 1566287 }
200
201 900699 static void lumRangeFromJpeg_c(int16_t *dst, int width,
202 uint32_t _coeff, int64_t _offset)
203 {
204 900699 uint16_t coeff = _coeff;
205 900699 int32_t offset = _offset;
206 int i;
207
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 315138187 for (i = 0; i < width; i++)
208 314237488 dst[i] = (dst[i] * coeff + offset) >> 14;
209 900699 }
210
211 7 static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width,
212 uint32_t coeff, int64_t offset)
213 {
214 int i;
215 7 int32_t *dstU = (int32_t *) _dstU;
216 7 int32_t *dstV = (int32_t *) _dstV;
217
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 7711 for (i = 0; i < width; i++) {
218 7704 int U = ((int64_t) dstU[i] * coeff + offset) >> 18;
219 7704 int V = ((int64_t) dstV[i] * coeff + offset) >> 18;
220 7704 dstU[i] = FFMIN(U, (1 << 19) - 1);
221 7704 dstV[i] = FFMIN(V, (1 << 19) - 1);
222 }
223 7 }
224
225 7 static void chrRangeFromJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width,
226 uint32_t coeff, int64_t offset)
227 {
228 int i;
229 7 int32_t *dstU = (int32_t *) _dstU;
230 7 int32_t *dstV = (int32_t *) _dstV;
231
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 7711 for (i = 0; i < width; i++) {
232 7704 dstU[i] = ((int64_t) dstU[i] * coeff + offset) >> 18;
233 7704 dstV[i] = ((int64_t) dstV[i] * coeff + offset) >> 18;
234 }
235 7 }
236
237 286638 static void lumRangeToJpeg16_c(int16_t *_dst, int width,
238 uint32_t coeff, int64_t offset)
239 {
240 int i;
241 286638 int32_t *dst = (int32_t *) _dst;
242
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 101117054 for (i = 0; i < width; i++) {
243 100830416 int Y = ((int64_t) dst[i] * coeff + offset) >> 18;
244 100830416 dst[i] = FFMIN(Y, (1 << 19) - 1);
245 }
246 286638 }
247
248 33183 static void lumRangeFromJpeg16_c(int16_t *_dst, int width,
249 uint32_t coeff, int64_t offset)
250 {
251 int i;
252 33183 int32_t *dst = (int32_t *) _dst;
253
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 11718839 for (i = 0; i < width; i++)
254 11685656 dst[i] = ((int64_t) dst[i] * coeff + offset) >> 18;
255 33183 }
256
257
258 #define DEBUG_SWSCALE_BUFFERS 0
259 #define DEBUG_BUFFERS(...) \
260 if (DEBUG_SWSCALE_BUFFERS) \
261 av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
262
263 583656 int ff_swscale(SwsInternal *c, const uint8_t *const src[], const int srcStride[],
264 int srcSliceY, int srcSliceH, uint8_t *const dst[],
265 const int dstStride[], int dstSliceY, int dstSliceH)
266 {
267
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 583656 const int scale_dst = dstSliceY > 0 || dstSliceH < c->opts.dst_h;
268
269 /* load a few things into local vars to make the code more readable?
270 * and faster */
271 583656 const int dstW = c->opts.dst_w;
272 583656 int dstH = c->opts.dst_h;
273
274 583656 const enum AVPixelFormat dstFormat = c->opts.dst_format;
275 583656 const int flags = c->opts.flags;
276 583656 int32_t *vLumFilterPos = c->vLumFilterPos;
277 583656 int32_t *vChrFilterPos = c->vChrFilterPos;
278
279 583656 const int vLumFilterSize = c->vLumFilterSize;
280 583656 const int vChrFilterSize = c->vChrFilterSize;
281
282 583656 yuv2planar1_fn yuv2plane1 = c->yuv2plane1;
283 583656 yuv2planarX_fn yuv2planeX = c->yuv2planeX;
284 583656 yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;
285 583656 yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
286 583656 yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
287 583656 yuv2packedX_fn yuv2packedX = c->yuv2packedX;
288 583656 yuv2anyX_fn yuv2anyX = c->yuv2anyX;
289 583656 const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample;
290 583656 const int chrSrcSliceH = AV_CEIL_RSHIFT(srcSliceH, c->chrSrcVSubSample);
291
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 910864 int should_dither = isNBPS(c->opts.src_format) ||
292 327208 is16BPS(c->opts.src_format);
293 int lastDstY;
294
295 /* vars which will change and which we need to store back in the context */
296 583656 int dstY = c->dstY;
297 583656 int lastInLumBuf = c->lastInLumBuf;
298 583656 int lastInChrBuf = c->lastInChrBuf;
299
300 583656 int lumStart = 0;
301 583656 int lumEnd = c->descIndex[0];
302 583656 int chrStart = lumEnd;
303 583656 int chrEnd = c->descIndex[1];
304 583656 int vStart = chrEnd;
305 583656 int vEnd = c->numDesc;
306 583656 SwsSlice *src_slice = &c->slice[lumStart];
307 583656 SwsSlice *hout_slice = &c->slice[c->numSlice-2];
308 583656 SwsSlice *vout_slice = &c->slice[c->numSlice-1];
309 583656 SwsFilterDescriptor *desc = c->desc;
310
311 583656 int needAlpha = c->needAlpha;
312
313 583656 int hasLumHoles = 1;
314 583656 int hasChrHoles = 1;
315
316 const uint8_t *src2[4];
317 int srcStride2[4];
318
319
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 583656 if (isPacked(c->opts.src_format)) {
320 132243 src2[0] =
321 132243 src2[1] =
322 132243 src2[2] =
323 132243 src2[3] = src[0];
324 132243 srcStride2[0] =
325 132243 srcStride2[1] =
326 132243 srcStride2[2] =
327 132243 srcStride2[3] = srcStride[0];
328 } else {
329 451413 memcpy(src2, src, sizeof(src2));
330 451413 memcpy(srcStride2, srcStride, sizeof(srcStride2));
331 }
332
333 583656 srcStride2[1] *= 1 << c->vChrDrop;
334 583656 srcStride2[2] *= 1 << c->vChrDrop;
335
336 DEBUG_BUFFERS("swscale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n",
337 src2[0], srcStride2[0], src2[1], srcStride2[1],
338 src2[2], srcStride2[2], src2[3], srcStride2[3],
339 dst[0], dstStride[0], dst[1], dstStride[1],
340 dst[2], dstStride[2], dst[3], dstStride[3]);
341 DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n",
342 srcSliceY, srcSliceH, dstY, dstH);
343 DEBUG_BUFFERS("vLumFilterSize: %d vChrFilterSize: %d\n",
344 vLumFilterSize, vChrFilterSize);
345
346
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 583656 if (dstStride[0]&15 || dstStride[1]&15 ||
347
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 566832 dstStride[2]&15 || dstStride[3]&15) {
348
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 16824 SwsInternal *const ctx = c->parent ? sws_internal(c->parent) : c;
349
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 16824 if (flags & SWS_PRINT_INFO &&
350 ✗ !atomic_exchange_explicit(&ctx->stride_unaligned_warned, 1, memory_order_relaxed)) {
351 ✗ av_log(c, AV_LOG_WARNING,
352 "Warning: dstStride is not aligned!\n"
353 " ->cannot do aligned memory accesses anymore\n");
354 }
355 }
356
357 #if ARCH_X86
358
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 583656 if ( (uintptr_t) dst[0]&15 || (uintptr_t) dst[1]&15 || (uintptr_t) dst[2]&15
359
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 579456 || (uintptr_t)src2[0]&15 || (uintptr_t)src2[1]&15 || (uintptr_t)src2[2]&15
360
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 576366 || srcStride2[0]&15 || srcStride2[1]&15 || srcStride2[2]&15 || srcStride2[3]&15
361 ) {
362
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 12903 SwsInternal *const ctx = c->parent ? sws_internal(c->parent) : c;
363 12903 int cpu_flags = av_get_cpu_flags();
364
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 12903 if (flags & SWS_PRINT_INFO && HAVE_MMXEXT && (cpu_flags & AV_CPU_FLAG_SSE2) &&
365 ✗ !atomic_exchange_explicit(&ctx->stride_unaligned_warned,1, memory_order_relaxed)) {
366 ✗ av_log(c, AV_LOG_WARNING, "Warning: data is not aligned! This can lead to a speed loss\n");
367 }
368 }
369 #endif
370
371
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 583656 if (scale_dst) {
372 515693 dstY = dstSliceY;
373 515693 dstH = dstY + dstSliceH;
374 515693 lastInLumBuf = -1;
375 515693 lastInChrBuf = -1;
376
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 67963 } else if (srcSliceY == 0) {
377 /* Note the user might start scaling the picture in the middle so this
378 * will not get executed. This is not really intended but works
379 * currently, so people might do it. */
380 67897 dstY = 0;
381 67897 lastInLumBuf = -1;
382 67897 lastInChrBuf = -1;
383 }
384
385
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 583656 if (!should_dither) {
386 224326 c->chrDither8 = c->lumDither8 = sws_pb_64;
387 }
388 583656 lastDstY = dstY;
389
390 583656 ff_init_vscale_pfn(c, yuv2plane1, yuv2planeX, yuv2nv12cX,
391 yuv2packed1, yuv2packed2, yuv2packedX, yuv2anyX, c->use_mmx_vfilter);
392
393 583656 ff_init_slice_from_src(src_slice, (uint8_t**)src2, srcStride2, c->opts.src_w,
394 srcSliceY, srcSliceH, chrSrcSliceY, chrSrcSliceH, 1);
395
396 583656 ff_init_slice_from_src(vout_slice, (uint8_t**)dst, dstStride, c->opts.dst_w,
397 583656 dstY, dstSliceH, dstY >> c->chrDstVSubSample,
398 583656 AV_CEIL_RSHIFT(dstSliceH, c->chrDstVSubSample), scale_dst);
399
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 583656 if (srcSliceY == 0) {
400 583590 hout_slice->plane[0].sliceY = lastInLumBuf + 1;
401 583590 hout_slice->plane[1].sliceY = lastInChrBuf + 1;
402 583590 hout_slice->plane[2].sliceY = lastInChrBuf + 1;
403 583590 hout_slice->plane[3].sliceY = lastInLumBuf + 1;
404
405 583590 hout_slice->plane[0].sliceH =
406 583590 hout_slice->plane[1].sliceH =
407 583590 hout_slice->plane[2].sliceH =
408 583590 hout_slice->plane[3].sliceH = 0;
409 583590 hout_slice->width = dstW;
410 }
411
412
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 31687134 for (; dstY < dstH; dstY++) {
413 31103544 const int chrDstY = dstY >> c->chrDstVSubSample;
414 31103544 int use_mmx_vfilter= c->use_mmx_vfilter;
415
416 // First line needed as input
417 31103544 const int firstLumSrcY = FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]);
418
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 31103544 const int firstLumSrcY2 = FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1 << c->chrDstVSubSample) - 1), c->opts.dst_h - 1)]);
419 // First line needed as input
420 31103544 const int firstChrSrcY = FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]);
421
422 // Last line needed as input
423 31103544 int lastLumSrcY = FFMIN(c->opts.src_h, firstLumSrcY + vLumFilterSize) - 1;
424 31103544 int lastLumSrcY2 = FFMIN(c->opts.src_h, firstLumSrcY2 + vLumFilterSize) - 1;
425 31103544 int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;
426 int enough_lines;
427
428 int i;
429 int posY, cPosY, firstPosY, lastPosY, firstCPosY, lastCPosY;
430
431 // handle holes (FAST_BILINEAR & weird filters)
432
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 31103544 if (firstLumSrcY > lastInLumBuf) {
433
434 25823968 hasLumHoles = lastInLumBuf != firstLumSrcY - 1;
435
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 25823968 if (hasLumHoles) {
436 642382 hout_slice->plane[0].sliceY = firstLumSrcY;
437 642382 hout_slice->plane[3].sliceY = firstLumSrcY;
438 642382 hout_slice->plane[0].sliceH =
439 642382 hout_slice->plane[3].sliceH = 0;
440 }
441
442 25823968 lastInLumBuf = firstLumSrcY - 1;
443 }
444
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 31103544 if (firstChrSrcY > lastInChrBuf) {
445
446 14736474 hasChrHoles = lastInChrBuf != firstChrSrcY - 1;
447
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 14736474 if (hasChrHoles) {
448 794182 hout_slice->plane[1].sliceY = firstChrSrcY;
449 794182 hout_slice->plane[2].sliceY = firstChrSrcY;
450 794182 hout_slice->plane[1].sliceH =
451 794182 hout_slice->plane[2].sliceH = 0;
452 }
453
454 14736474 lastInChrBuf = firstChrSrcY - 1;
455 }
456
457 DEBUG_BUFFERS("dstY: %d\n", dstY);
458 DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n",
459 firstLumSrcY, lastLumSrcY, lastInLumBuf);
460 DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n",
461 firstChrSrcY, lastChrSrcY, lastInChrBuf);
462
463 // Do we have enough lines in this slice to output the dstY line
464
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 62207030 enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH &&
465
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 31103486 lastChrSrcY < AV_CEIL_RSHIFT(srcSliceY + srcSliceH, c->chrSrcVSubSample);
466
467
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 31103544 if (!enough_lines) {
468 66 lastLumSrcY = srcSliceY + srcSliceH - 1;
469 66 lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;
470 DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n",
471 lastLumSrcY, lastChrSrcY);
472 }
473
474
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 31103544 av_assert0((lastLumSrcY - firstLumSrcY + 1) <= hout_slice->plane[0].available_lines);
475
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 31103544 av_assert0((lastChrSrcY - firstChrSrcY + 1) <= hout_slice->plane[1].available_lines);
476
477
478 31103544 posY = hout_slice->plane[0].sliceY + hout_slice->plane[0].sliceH;
479
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 31103544 if (posY <= lastLumSrcY && !hasLumHoles) {
480 5395098 firstPosY = FFMAX(firstLumSrcY, posY);
481
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 5395098 lastPosY = FFMIN(firstLumSrcY + hout_slice->plane[0].available_lines - 1, srcSliceY + srcSliceH - 1);
482 } else {
483 25708446 firstPosY = posY;
484 25708446 lastPosY = lastLumSrcY;
485 }
486
487 31103544 cPosY = hout_slice->plane[1].sliceY + hout_slice->plane[1].sliceH;
488
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 31103544 if (cPosY <= lastChrSrcY && !hasChrHoles) {
489 4192165 firstCPosY = FFMAX(firstChrSrcY, cPosY);
490 4192165 lastCPosY = FFMIN(firstChrSrcY + hout_slice->plane[1].available_lines - 1, AV_CEIL_RSHIFT(srcSliceY + srcSliceH, c->chrSrcVSubSample) - 1);
491 } else {
492 26911379 firstCPosY = cPosY;
493 26911379 lastCPosY = lastChrSrcY;
494 }
495
496 31103544 ff_rotate_slice(hout_slice, lastPosY, lastCPosY);
497
498
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 31103544 if (posY < lastLumSrcY + 1) {
499
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 15793371 for (i = lumStart; i < lumEnd; ++i)
500 9477593 desc[i].process(c, &desc[i], firstPosY, lastPosY - firstPosY + 1);
501 }
502
503 31103544 lastInLumBuf = lastLumSrcY;
504
505
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 31103544 if (cPosY < lastChrSrcY + 1) {
506
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 18052644 for (i = chrStart; i < chrEnd; ++i)
507 11062557 desc[i].process(c, &desc[i], firstCPosY, lastCPosY - firstCPosY + 1);
508 }
509
510 31103544 lastInChrBuf = lastChrSrcY;
511
512
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 31103544 if (!enough_lines)
513 66 break; // we can't output a dstY line so let's try with the next slice
514
515 #if ARCH_X86 && HAVE_MMX
516 31103478 ff_updateMMXDitherTables(c, dstY);
517 31103478 c->dstW_mmx = c->opts.dst_w;
518 #endif
519
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 31103478 if (should_dither) {
520 15510381 c->chrDither8 = ff_dither_8x8_128[chrDstY & 7];
521 15510381 c->lumDither8 = ff_dither_8x8_128[dstY & 7];
522 }
523
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 31103478 if (dstY >= c->opts.dst_h - 2) {
524 /* hmm looks like we can't use MMX here without overwriting
525 * this array's tail */
526 250616 ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
527 &yuv2packed1, &yuv2packed2, &yuv2packedX, &yuv2anyX);
528 250616 use_mmx_vfilter= 0;
529 250616 ff_init_vscale_pfn(c, yuv2plane1, yuv2planeX, yuv2nv12cX,
530 yuv2packed1, yuv2packed2, yuv2packedX, yuv2anyX, use_mmx_vfilter);
531 }
532
533
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 83390193 for (i = vStart; i < vEnd; ++i)
534 52286715 desc[i].process(c, &desc[i], dstY, 1);
535 }
536
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 583656 if (isPlanar(dstFormat) && isALPHA(dstFormat) && !needAlpha) {
537 27765 int offset = lastDstY - dstSliceY;
538 27765 int length = dstW;
539 27765 int height = dstY - lastDstY;
540
541
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 28878 if (is16BPS(dstFormat) || isNBPS(dstFormat)) {
542 1113 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);
543 1113 fillPlane16(dst[3], dstStride[3], length, height, offset,
544 1113 1, desc->comp[3].depth,
545 isBE(dstFormat));
546
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 26652 } else if (is32BPS(dstFormat)) {
547 120 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);
548 240 fillPlane32(dst[3], dstStride[3], length, height, offset,
549 120 1, desc->comp[3].depth,
550 120 isBE(dstFormat), desc->flags & AV_PIX_FMT_FLAG_FLOAT);
551 } else
552 26532 fillPlane(dst[3], dstStride[3], length, height, offset, 255);
553 }
554
555 #if HAVE_MMXEXT_INLINE
556
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 583656 if (av_get_cpu_flags() & AV_CPU_FLAG_MMXEXT)
557 31496 __asm__ volatile ("sfence" ::: "memory");
558 #endif
559 583656 emms_c();
560
561 /* store changed local vars back in the context */
562 583656 c->dstY = dstY;
563 583656 c->lastInLumBuf = lastInLumBuf;
564 583656 c->lastInChrBuf = lastInChrBuf;
565
566 583656 return dstY - lastDstY;
567 }
568
569 /*
570 * Solve for coeff and offset:
571 * dst = ((src << src_shift) * coeff + offset) >> (mult_shift + src_shift)
572 *
573 * If SwsInternal->dstBpc is > 14, coeff is uint16_t and offset is int32_t,
574 * otherwise (SwsInternal->dstBpc is <= 14) coeff is uint32_t and offset is
575 * int64_t.
576 */
577 28046 static void solve_range_convert(uint16_t src_min, uint16_t src_max,
578 uint16_t dst_min, uint16_t dst_max,
579 int src_bits, int src_shift, int mult_shift,
580 uint32_t *coeff, int64_t *offset)
581 {
582 28046 uint16_t src_range = src_max - src_min;
583 28046 uint16_t dst_range = dst_max - dst_min;
584 28046 int total_shift = mult_shift + src_shift;
585 28046 *coeff = AV_CEIL_RSHIFT(((uint64_t) dst_range << total_shift) / src_range, src_shift);
586 28046 *offset = ((int64_t) dst_max << total_shift) -
587 28046 ((int64_t) src_max << src_shift) * *coeff +
588 28046 (1U << (mult_shift - 1));
589 28046 }
590
591 14023 static void init_range_convert_constants(SwsInternal *c)
592 {
593
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 14023 const int bit_depth = c->dstBpc ? FFMIN(c->dstBpc, 16) : 8;
594
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 14023 const int src_bits = bit_depth <= 14 ? 15 : 19;
595 14023 const int src_shift = src_bits - bit_depth;
596
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 14023 const int mult_shift = bit_depth <= 14 ? 14 : 18;
597 14023 const uint16_t mpeg_min = 16U << (bit_depth - 8);
598 14023 const uint16_t mpeg_max_lum = 235U << (bit_depth - 8);
599 14023 const uint16_t mpeg_max_chr = 240U << (bit_depth - 8);
600 14023 const uint16_t jpeg_max = (1U << bit_depth) - 1;
601 uint16_t src_min, src_max_lum, src_max_chr;
602 uint16_t dst_min, dst_max_lum, dst_max_chr;
603
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 14023 if (c->opts.src_range) {
604 10356 src_min = 0;
605 10356 src_max_lum = jpeg_max;
606 10356 src_max_chr = jpeg_max;
607 10356 dst_min = mpeg_min;
608 10356 dst_max_lum = mpeg_max_lum;
609 10356 dst_max_chr = mpeg_max_chr;
610 } else {
611 3667 src_min = mpeg_min;
612 3667 src_max_lum = mpeg_max_lum;
613 3667 src_max_chr = mpeg_max_chr;
614 3667 dst_min = 0;
615 3667 dst_max_lum = jpeg_max;
616 3667 dst_max_chr = jpeg_max;
617 }
618 14023 solve_range_convert(src_min, src_max_lum, dst_min, dst_max_lum,
619 src_bits, src_shift, mult_shift,
620 &c->lumConvertRange_coeff, &c->lumConvertRange_offset);
621 14023 solve_range_convert(src_min, src_max_chr, dst_min, dst_max_chr,
622 src_bits, src_shift, mult_shift,
623 &c->chrConvertRange_coeff, &c->chrConvertRange_offset);
624 14023 }
625
626 141784 av_cold void ff_sws_init_range_convert(SwsInternal *c)
627 {
628 141784 c->lumConvertRange = NULL;
629 141784 c->chrConvertRange = NULL;
630
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 141784 if (c->opts.src_range != c->opts.dst_range && !isAnyRGB(c->opts.dst_format) && c->dstBpc < 32) {
631 14023 init_range_convert_constants(c);
632
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 14023 if (c->dstBpc <= 14) {
633
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 13575 if (c->opts.src_range) {
634 10288 c->lumConvertRange = lumRangeFromJpeg_c;
635 10288 c->chrConvertRange = chrRangeFromJpeg_c;
636 } else {
637 3287 c->lumConvertRange = lumRangeToJpeg_c;
638 3287 c->chrConvertRange = chrRangeToJpeg_c;
639 }
640 } else {
641
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 448 if (c->opts.src_range) {
642 68 c->lumConvertRange = lumRangeFromJpeg16_c;
643 68 c->chrConvertRange = chrRangeFromJpeg16_c;
644 } else {
645 380 c->lumConvertRange = lumRangeToJpeg16_c;
646 380 c->chrConvertRange = chrRangeToJpeg16_c;
647 }
648 }
649
650 #if ARCH_AARCH64
651 ff_sws_init_range_convert_aarch64(c);
652 #elif ARCH_LOONGARCH64
653 ff_sws_init_range_convert_loongarch(c);
654 #elif ARCH_RISCV
655 ff_sws_init_range_convert_riscv(c);
656 #elif ARCH_X86
657 14023 ff_sws_init_range_convert_x86(c);
658 #endif
659 }
660 141784 }
661
662 72744 static av_cold void sws_init_swscale(SwsInternal *c)
663 {
664 72744 enum AVPixelFormat srcFormat = c->opts.src_format;
665
666 72744 ff_sws_init_xyzdsp(c);
667
668 72744 ff_sws_init_output_funcs(c, &c->yuv2plane1, &c->yuv2planeX,
669 &c->yuv2nv12cX, &c->yuv2packed1,
670 &c->yuv2packed2, &c->yuv2packedX, &c->yuv2anyX);
671
672 72744 ff_sws_init_input_funcs(c, &c->lumToYV12, &c->alpToYV12, &c->chrToYV12,
673 &c->readLumPlanar, &c->readAlpPlanar, &c->readChrPlanar);
674
675
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 72744 if (c->srcBpc == 8) {
676
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 27176 if (c->dstBpc <= 14) {
677 25081 c->hyScale = c->hcScale = hScale8To15_c;
678
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 25081 if (c->opts.flags & SWS_FAST_BILINEAR) {
679 1 c->hyscale_fast = ff_hyscale_fast_c;
680 1 c->hcscale_fast = ff_hcscale_fast_c;
681 }
682 } else {
683 2095 c->hyScale = c->hcScale = hScale8To19_c;
684 }
685 } else {
686 45568 c->hyScale = c->hcScale = c->dstBpc > 14 ? hScale16To19_c
687
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 45568 : hScale16To15_c;
688 }
689
690 72744 ff_sws_init_range_convert(c);
691
692
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 72744 if (!(isGray(srcFormat) || isGray(c->opts.dst_format) ||
693 srcFormat == AV_PIX_FMT_MONOBLACK || srcFormat == AV_PIX_FMT_MONOWHITE))
694 65814 c->needs_hcscale = 1;
695 72744 }
696
697 72744 void ff_sws_init_scale(SwsInternal *c)
698 {
699 72744 sws_init_swscale(c);
700
701 #if ARCH_PPC
702 ff_sws_init_swscale_ppc(c);
703 #elif ARCH_X86
704 72744 ff_sws_init_swscale_x86(c);
705 #elif ARCH_AARCH64
706 ff_sws_init_swscale_aarch64(c);
707 #elif ARCH_ARM
708 ff_sws_init_swscale_arm(c);
709 #elif ARCH_LOONGARCH64
710 ff_sws_init_swscale_loongarch(c);
711 #elif ARCH_RISCV
712 ff_sws_init_swscale_riscv(c);
713 #endif
714 72744 }
715
716 312 static void reset_ptr(const uint8_t *src[], enum AVPixelFormat format)
717 {
718
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 312 if (!isALPHA(format))
719 274 src[3] = NULL;
720
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 312 if (!isPlanar(format)) {
721 116 src[3] = src[2] = NULL;
722
723
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 116 if (!usePal(format))
724 116 src[1] = NULL;
725 }
726 312 }
727
728 312 static int check_image_pointers(const uint8_t * const data[4], enum AVPixelFormat pix_fmt,
729 const int linesizes[4])
730 {
731 312 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
732 int i;
733
734 av_assert2(desc);
735
736
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 1560 for (i = 0; i < 4; i++) {
737 1248 int plane = desc->comp[i].plane;
738
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 1248 if (!data[plane] || !linesizes[plane])
739 ✗ return 0;
740 }
741
742 312 return 1;
743 }
744
745 2741 static void xyz12Torgb48_c(const SwsInternal *c, uint8_t *dst, int dst_stride,
746 const uint8_t *src, int src_stride, int w, int h)
747 {
748 2741 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->opts.src_format);
749
750
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 86969 for (int yp = 0; yp < h; yp++) {
751 84228 const uint16_t *src16 = (const uint16_t *) src;
752 84228 uint16_t *dst16 = (uint16_t *) dst;
753
754
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 29681640 for (int xp = 0; xp < 3 * w; xp += 3) {
755 int x, y, z, r, g, b;
756
757
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 29597412 if (desc->flags & AV_PIX_FMT_FLAG_BE) {
758 202752 x = AV_RB16(src16 + xp + 0);
759 202752 y = AV_RB16(src16 + xp + 1);
760 202752 z = AV_RB16(src16 + xp + 2);
761 } else {
762 29394660 x = AV_RL16(src16 + xp + 0);
763 29394660 y = AV_RL16(src16 + xp + 1);
764 29394660 z = AV_RL16(src16 + xp + 2);
765 }
766
767 29597412 x = c->xyz2rgb.gamma.in[x >> 4];
768 29597412 y = c->xyz2rgb.gamma.in[y >> 4];
769 29597412 z = c->xyz2rgb.gamma.in[z >> 4];
770
771 // convert from XYZlinear to sRGBlinear
772 29597412 r = c->xyz2rgb.mat[0][0] * x +
773 29597412 c->xyz2rgb.mat[0][1] * y +
774 29597412 c->xyz2rgb.mat[0][2] * z >> 12;
775 29597412 g = c->xyz2rgb.mat[1][0] * x +
776 29597412 c->xyz2rgb.mat[1][1] * y +
777 29597412 c->xyz2rgb.mat[1][2] * z >> 12;
778 29597412 b = c->xyz2rgb.mat[2][0] * x +
779 29597412 c->xyz2rgb.mat[2][1] * y +
780 29597412 c->xyz2rgb.mat[2][2] * z >> 12;
781
782 // limit values to 16-bit depth
783 29597412 r = av_clip_uint16(r);
784 29597412 g = av_clip_uint16(g);
785 29597412 b = av_clip_uint16(b);
786
787 // convert from sRGBlinear to RGB and scale from 12bit to 16bit
788
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 29597412 if (desc->flags & AV_PIX_FMT_FLAG_BE) {
789 202752 AV_WB16(dst16 + xp + 0, c->xyz2rgb.gamma.out[r] << 4);
790 202752 AV_WB16(dst16 + xp + 1, c->xyz2rgb.gamma.out[g] << 4);
791 202752 AV_WB16(dst16 + xp + 2, c->xyz2rgb.gamma.out[b] << 4);
792 } else {
793 29394660 AV_WL16(dst16 + xp + 0, c->xyz2rgb.gamma.out[r] << 4);
794 29394660 AV_WL16(dst16 + xp + 1, c->xyz2rgb.gamma.out[g] << 4);
795 29394660 AV_WL16(dst16 + xp + 2, c->xyz2rgb.gamma.out[b] << 4);
796 }
797 }
798
799 84228 src += src_stride;
800 84228 dst += dst_stride;
801 }
802 2741 }
803
804 2644 static void rgb48Toxyz12_c(const SwsInternal *c, uint8_t *dst, int dst_stride,
805 const uint8_t *src, int src_stride, int w, int h)
806 {
807 2644 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->opts.dst_format);
808
809
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 104420 for (int yp = 0; yp < h; yp++) {
810 101776 uint16_t *src16 = (uint16_t *) src;
811 101776 uint16_t *dst16 = (uint16_t *) dst;
812
813
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 35866128 for (int xp = 0; xp < 3 * w; xp += 3) {
814 int x, y, z, r, g, b;
815
816
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 35764352 if (desc->flags & AV_PIX_FMT_FLAG_BE) {
817 3284032 r = AV_RB16(src16 + xp + 0);
818 3284032 g = AV_RB16(src16 + xp + 1);
819 3284032 b = AV_RB16(src16 + xp + 2);
820 } else {
821 32480320 r = AV_RL16(src16 + xp + 0);
822 32480320 g = AV_RL16(src16 + xp + 1);
823 32480320 b = AV_RL16(src16 + xp + 2);
824 }
825
826 35764352 r = c->rgb2xyz.gamma.in[r >> 4];
827 35764352 g = c->rgb2xyz.gamma.in[g >> 4];
828 35764352 b = c->rgb2xyz.gamma.in[b >> 4];
829
830 // convert from sRGBlinear to XYZlinear
831 35764352 x = c->rgb2xyz.mat[0][0] * r +
832 35764352 c->rgb2xyz.mat[0][1] * g +
833 35764352 c->rgb2xyz.mat[0][2] * b >> 12;
834 35764352 y = c->rgb2xyz.mat[1][0] * r +
835 35764352 c->rgb2xyz.mat[1][1] * g +
836 35764352 c->rgb2xyz.mat[1][2] * b >> 12;
837 35764352 z = c->rgb2xyz.mat[2][0] * r +
838 35764352 c->rgb2xyz.mat[2][1] * g +
839 35764352 c->rgb2xyz.mat[2][2] * b >> 12;
840
841 // limit values to 16-bit depth
842 35764352 x = av_clip_uint16(x);
843 35764352 y = av_clip_uint16(y);
844 35764352 z = av_clip_uint16(z);
845
846 // convert from XYZlinear to X'Y'Z' and scale from 12bit to 16bit
847
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 35764352 if (desc->flags & AV_PIX_FMT_FLAG_BE) {
848 3284032 AV_WB16(dst16 + xp + 0, c->rgb2xyz.gamma.out[x] << 4);
849 3284032 AV_WB16(dst16 + xp + 1, c->rgb2xyz.gamma.out[y] << 4);
850 3284032 AV_WB16(dst16 + xp + 2, c->rgb2xyz.gamma.out[z] << 4);
851 } else {
852 32480320 AV_WL16(dst16 + xp + 0, c->rgb2xyz.gamma.out[x] << 4);
853 32480320 AV_WL16(dst16 + xp + 1, c->rgb2xyz.gamma.out[y] << 4);
854 32480320 AV_WL16(dst16 + xp + 2, c->rgb2xyz.gamma.out[z] << 4);
855 }
856 }
857
858 101776 src += src_stride;
859 101776 dst += dst_stride;
860 }
861 2644 }
862
863 118205 av_cold void ff_sws_init_xyzdsp(SwsInternal *c)
864 {
865 118205 c->xyz12Torgb48 = xyz12Torgb48_c;
866 118205 c->rgb48Toxyz12 = rgb48Toxyz12_c;
867
868 #if ARCH_AARCH64
869 ff_sws_init_xyzdsp_aarch64(c);
870 #endif
871 118205 }
872
873 6214 void ff_update_palette(SwsInternal *c, const uint32_t *pal)
874 {
875 6214 uint32_t *rgb2yuv = c->input_rgb2yuv_table;
876
877 6214 int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
878 6214 int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
879 6214 int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
880
881
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 1596998 for (int i = 0; i < 256; i++) {
882 1590784 int r, g, b, y, u, v, a = 0xff;
883
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 1590784 if (c->opts.src_format == AV_PIX_FMT_PAL8) {
884 1118976 uint32_t p = pal[i];
885 1118976 a = (p >> 24) & 0xFF;
886 1118976 r = (p >> 16) & 0xFF;
887 1118976 g = (p >> 8) & 0xFF;
888 1118976 b = p & 0xFF;
889
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 471808 } else if (c->opts.src_format == AV_PIX_FMT_RGB8) {
890 73984 r = ( i >> 5 ) * 36;
891 73984 g = ((i >> 2) & 7) * 36;
892 73984 b = ( i & 3) * 85;
893
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 397824 } else if (c->opts.src_format == AV_PIX_FMT_BGR8) {
894 81920 b = ( i >> 6 ) * 85;
895 81920 g = ((i >> 3) & 7) * 36;
896 81920 r = ( i & 7) * 36;
897
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 315904 } else if (c->opts.src_format == AV_PIX_FMT_RGB4_BYTE) {
898 80128 r = ( i >> 3 ) * 255;
899 80128 g = ((i >> 1) & 3) * 85;
900 80128 b = ( i & 1) * 255;
901
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 235776 } else if (c->opts.src_format == AV_PIX_FMT_GRAY8 || c->opts.src_format == AV_PIX_FMT_GRAY8A) {
902 162048 r = g = b = i;
903 } else {
904 av_assert1(c->opts.src_format == AV_PIX_FMT_BGR4_BYTE);
905 73728 b = ( i >> 3 ) * 255;
906 73728 g = ((i >> 1) & 3) * 85;
907 73728 r = ( i & 1) * 255;
908 }
909
910 1590784 y = av_clip_uint8((ry * r + gy * g + by * b + ( 33 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT);
911 1590784 u = av_clip_uint8((ru * r + gu * g + bu * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT);
912 1590784 v = av_clip_uint8((rv * r + gv * g + bv * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT);
913
914 1590784 c->pal_yuv[i]= y + (u<<8) + (v<<16) + ((unsigned)a<<24);
915
916
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 1590784 switch (c->opts.dst_format) {
917 855552 case AV_PIX_FMT_BGR32:
918 #if !HAVE_BIGENDIAN
919 case AV_PIX_FMT_RGB24:
920 #endif
921 855552 c->pal_rgb[i]= r + (g<<8) + (b<<16) + ((unsigned)a<<24);
922 855552 break;
923 ✗ case AV_PIX_FMT_BGR32_1:
924 #if HAVE_BIGENDIAN
925 case AV_PIX_FMT_BGR24:
926 #endif
927 ✗ c->pal_rgb[i]= a + (r<<8) + (g<<16) + ((unsigned)b<<24);
928 ✗ break;
929 ✗ case AV_PIX_FMT_RGB32_1:
930 #if HAVE_BIGENDIAN
931 case AV_PIX_FMT_RGB24:
932 #endif
933 ✗ c->pal_rgb[i]= a + (b<<8) + (g<<16) + ((unsigned)r<<24);
934 ✗ break;
935 6656 case AV_PIX_FMT_GBRP:
936 case AV_PIX_FMT_GBRAP:
937 #if HAVE_BIGENDIAN
938 c->pal_rgb[i]= a + (r<<8) + (b<<16) + ((unsigned)g<<24);
939 #else
940 6656 c->pal_rgb[i]= g + (b<<8) + (r<<16) + ((unsigned)a<<24);
941 #endif
942 6656 break;
943 728576 case AV_PIX_FMT_RGB32:
944 #if !HAVE_BIGENDIAN
945 case AV_PIX_FMT_BGR24:
946 #endif
947 default:
948 728576 c->pal_rgb[i]= b + (g<<8) + (r<<16) + ((unsigned)a<<24);
949 }
950 }
951 6214 }
952
953 static int scale_internal(SwsContext *sws,
954 const uint8_t * const srcSlice[], const int srcStride[],
955 int srcSliceY, int srcSliceH,
956 uint8_t *const dstSlice[], const int dstStride[],
957 int dstSliceY, int dstSliceH);
958
959 ✗ static int scale_gamma(SwsInternal *c,
960 const uint8_t * const srcSlice[], const int srcStride[],
961 int srcSliceY, int srcSliceH,
962 uint8_t * const dstSlice[], const int dstStride[],
963 int dstSliceY, int dstSliceH)
964 {
965 ✗ int ret = scale_internal(c->cascaded_context[0],
966 srcSlice, srcStride, srcSliceY, srcSliceH,
967 ✗ c->cascaded_tmp[0], c->cascaded_tmpStride[0], 0, c->opts.src_h);
968
969 ✗ if (ret < 0)
970 ✗ return ret;
971
972 ✗ if (c->cascaded_context[2])
973 ✗ ret = scale_internal(c->cascaded_context[1], (const uint8_t * const *)c->cascaded_tmp[0],
974 ✗ c->cascaded_tmpStride[0], srcSliceY, srcSliceH,
975 ✗ c->cascaded_tmp[1], c->cascaded_tmpStride[1], 0, c->opts.dst_h);
976 else
977 ✗ ret = scale_internal(c->cascaded_context[1], (const uint8_t * const *)c->cascaded_tmp[0],
978 ✗ c->cascaded_tmpStride[0], srcSliceY, srcSliceH,
979 dstSlice, dstStride, dstSliceY, dstSliceH);
980
981 ✗ if (ret < 0)
982 ✗ return ret;
983
984 ✗ if (c->cascaded_context[2]) {
985 ✗ const int dstY1 = sws_internal(c->cascaded_context[1])->dstY;
986 ✗ ret = scale_internal(c->cascaded_context[2], (const uint8_t * const *)c->cascaded_tmp[1],
987 ✗ c->cascaded_tmpStride[1], dstY1 - ret, dstY1,
988 dstSlice, dstStride, dstSliceY, dstSliceH);
989 }
990 ✗ return ret;
991 }
992
993 ✗ static int scale_cascaded(SwsInternal *c,
994 const uint8_t * const srcSlice[], const int srcStride[],
995 int srcSliceY, int srcSliceH,
996 uint8_t * const dstSlice[], const int dstStride[],
997 int dstSliceY, int dstSliceH)
998 {
999 ✗ const int dstH0 = c->cascaded_context[0]->dst_h;
1000 ✗ int ret = scale_internal(c->cascaded_context[0],
1001 srcSlice, srcStride, srcSliceY, srcSliceH,
1002 ✗ c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1003 0, dstH0);
1004 ✗ if (ret < 0)
1005 ✗ return ret;
1006
1007 /* The first stage assembles the full intermediate image from the input,
1008 * one slice at a time (it is itself a regular slice-capable context). The
1009 * second stage scales that whole intermediate to the output in one step,
1010 * so it can only run once the entire source has been consumed. The first
1011 * stage resets its slice direction to 0 at end of frame; until then the
1012 * intermediate is incomplete and this call produces no output lines. */
1013 ✗ if (sws_internal(c->cascaded_context[0])->sliceDir != 0)
1014 ✗ return 0;
1015
1016 ✗ ret = scale_internal(c->cascaded_context[1],
1017 ✗ (const uint8_t * const * )c->cascaded_tmp[0], c->cascaded_tmpStride[0],
1018 0, dstH0, dstSlice, dstStride, dstSliceY, dstSliceH);
1019 ✗ return ret;
1020 }
1021
1022 156 static int scale_internal(SwsContext *sws,
1023 const uint8_t * const srcSlice[], const int srcStride[],
1024 int srcSliceY, int srcSliceH,
1025 uint8_t *const dstSlice[], const int dstStride[],
1026 int dstSliceY, int dstSliceH)
1027 {
1028 156 SwsInternal *c = sws_internal(sws);
1029
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 156 const int scale_dst = dstSliceY > 0 || dstSliceH < sws->dst_h;
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 156 const int frame_start = scale_dst || !c->sliceDir;
1031 int i, ret;
1032 const uint8_t *src2[4];
1033 uint8_t *dst2[4];
1034
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 156 int macro_height_src = isBayer(sws->src_format) ? 2 : (1 << c->chrSrcVSubSample);
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 156 int macro_height_dst = isBayer(sws->dst_format) ? 2 : (1 << c->chrDstVSubSample);
1036 // copy strides, so they can safely be modified
1037 int srcStride2[4];
1038 int dstStride2[4];
1039 156 int srcSliceY_internal = srcSliceY;
1040
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 156 if (!srcStride || !dstStride || !dstSlice || !srcSlice) {
1042 ✗ av_log(c, AV_LOG_ERROR, "One of the input parameters to sws_scale() is NULL, please check the calling code\n");
1043 ✗ return AVERROR(EINVAL);
1044 }
1045
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 156 if ((srcSliceY & (macro_height_src - 1)) ||
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 156 ((srcSliceH & (macro_height_src - 1)) && srcSliceY + srcSliceH != sws->src_h) ||
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 156 srcSliceY + srcSliceH > sws->src_h ||
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 156 srcSliceY < 0 ||
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 156 srcSliceH < 0 ||
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 156 (isBayer(sws->src_format) && srcSliceH <= 1)) {
1052 ✗ av_log(c, AV_LOG_ERROR, "Slice parameters %d, %d are invalid\n", srcSliceY, srcSliceH);
1053 ✗ return AVERROR(EINVAL);
1054 }
1055
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 156 if ((dstSliceY & (macro_height_dst - 1)) ||
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 156 ((dstSliceH & (macro_height_dst - 1)) && dstSliceY + dstSliceH != sws->dst_h) ||
1058
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 156 dstSliceY + dstSliceH > sws->dst_h) {
1059 ✗ av_log(c, AV_LOG_ERROR, "Slice parameters %d, %d are invalid\n", dstSliceY, dstSliceH);
1060 ✗ return AVERROR(EINVAL);
1061 }
1062
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 156 if (!check_image_pointers(srcSlice, sws->src_format, srcStride)) {
1064 ✗ av_log(c, AV_LOG_ERROR, "bad src image pointers\n");
1065 ✗ return AVERROR(EINVAL);
1066 }
1067
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 156 if (!check_image_pointers((const uint8_t* const*)dstSlice, sws->dst_format, dstStride)) {
1068 ✗ av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");
1069 ✗ return AVERROR(EINVAL);
1070 }
1071
1072 // do not mess up sliceDir if we have a "trailing" 0-size slice
1073
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 156 if (srcSliceH == 0)
1074 ✗ return 0;
1075
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 156 if (sws->gamma_flag && c->cascaded_context[0])
1077 ✗ return scale_gamma(c, srcSlice, srcStride, srcSliceY, srcSliceH,
1078 dstSlice, dstStride, dstSliceY, dstSliceH);
1079
1080
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 156 if (c->cascaded_context[0])
1081 ✗ return scale_cascaded(c, srcSlice, srcStride, srcSliceY, srcSliceH,
1082 dstSlice, dstStride, dstSliceY, dstSliceH);
1083
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 156 if (!srcSliceY && (sws->flags & SWS_BITEXACT) && sws->dither == SWS_DITHER_ED && c->dither_error[0])
1085 ✗ for (i = 0; i < 4; i++)
1086 ✗ memset(c->dither_error[i], 0, sizeof(c->dither_error[0][0]) * (sws->dst_w+2));
1087
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 156 if (usePal(sws->src_format))
1089 ✗ ff_update_palette(c, (const uint32_t *)srcSlice[1]);
1090
1091 156 memcpy(src2, srcSlice, sizeof(src2));
1092 156 memcpy(dst2, dstSlice, sizeof(dst2));
1093 156 memcpy(srcStride2, srcStride, sizeof(srcStride2));
1094 156 memcpy(dstStride2, dstStride, sizeof(dstStride2));
1095
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 156 if (frame_start && !scale_dst) {
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 90 if (srcSliceY != 0 && srcSliceY + srcSliceH != sws->src_h) {
1098 ✗ av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
1099 ✗ return AVERROR(EINVAL);
1100 }
1101
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 90 c->sliceDir = (srcSliceY == 0) ? 1 : -1;
1103
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 66 } else if (scale_dst)
1104 ✗ c->sliceDir = 1;
1105
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 156 if (c->src0Alpha && !c->dst0Alpha && isALPHA(sws->dst_format)) {
1107 uint8_t *base;
1108 int x,y;
1109
1110 ✗ av_fast_malloc(&c->rgb0_scratch, &c->rgb0_scratch_allocated,
1111 ✗ FFABS(srcStride[0]) * srcSliceH + 32);
1112 ✗ if (!c->rgb0_scratch)
1113 ✗ return AVERROR(ENOMEM);
1114
1115 ✗ base = srcStride[0] < 0 ? c->rgb0_scratch - srcStride[0] * (srcSliceH-1) :
1116 c->rgb0_scratch;
1117 ✗ for (y=0; y<srcSliceH; y++){
1118 ✗ memcpy(base + srcStride[0]*y, src2[0] + srcStride[0]*y, 4*sws->src_w);
1119 ✗ for (x=c->src0Alpha-1; x<4*sws->src_w; x+=4) {
1120 ✗ base[ srcStride[0]*y + x] = 0xFF;
1121 }
1122 }
1123 ✗ src2[0] = base;
1124 }
1125
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 156 if (c->srcXYZ && !(c->dstXYZ && sws->src_w==sws->dst_w && sws->src_h==sws->dst_h)) {
1127 uint8_t *base;
1128
1129 ✗ av_fast_malloc(&c->xyz_scratch, &c->xyz_scratch_allocated,
1130 ✗ FFABS(srcStride[0]) * srcSliceH + 32);
1131 ✗ if (!c->xyz_scratch)
1132 ✗ return AVERROR(ENOMEM);
1133
1134 ✗ base = srcStride[0] < 0 ? c->xyz_scratch - srcStride[0] * (srcSliceH-1) :
1135 c->xyz_scratch;
1136
1137 ✗ c->xyz12Torgb48(c, base, srcStride[0], src2[0], srcStride[0], sws->src_w, srcSliceH);
1138 ✗ src2[0] = base;
1139 }
1140
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 156 if (c->sliceDir != 1) {
1142 // slices go from bottom to top => we flip the image internally
1143 ✗ for (i=0; i<4; i++) {
1144 ✗ srcStride2[i] *= -1;
1145 ✗ dstStride2[i] *= -1;
1146 }
1147
1148 ✗ src2[0] += (srcSliceH - 1) * srcStride[0];
1149 ✗ if (!usePal(sws->src_format))
1150 ✗ src2[1] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[1];
1151 ✗ src2[2] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[2];
1152 ✗ src2[3] += (srcSliceH - 1) * srcStride[3];
1153 ✗ dst2[0] += ( sws->dst_h - 1) * dstStride[0];
1154 ✗ dst2[1] += ((sws->dst_h >> c->chrDstVSubSample) - 1) * dstStride[1];
1155 ✗ dst2[2] += ((sws->dst_h >> c->chrDstVSubSample) - 1) * dstStride[2];
1156 ✗ dst2[3] += ( sws->dst_h - 1) * dstStride[3];
1157
1158 ✗ srcSliceY_internal = sws->src_h-srcSliceY-srcSliceH;
1159 }
1160 156 reset_ptr(src2, sws->src_format);
1161 156 reset_ptr((void*)dst2, sws->dst_format);
1162
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 156 if (c->convert_unscaled) {
1164 ✗ int offset = srcSliceY_internal;
1165 ✗ int slice_h = srcSliceH;
1166
1167 // for dst slice scaling, offset the pointers to match the unscaled API
1168 ✗ if (scale_dst) {
1169 ✗ av_assert0(offset == 0);
1170 ✗ for (i = 0; i < 4 && src2[i]; i++) {
1171 ✗ if (!src2[i] || (i > 0 && usePal(sws->src_format)))
1172 break;
1173 ✗ src2[i] += (dstSliceY >> ((i == 1 || i == 2) ? c->chrSrcVSubSample : 0)) * srcStride2[i];
1174 }
1175
1176 ✗ for (i = 0; i < 4 && dst2[i]; i++) {
1177 ✗ if (!dst2[i] || (i > 0 && usePal(sws->dst_format)))
1178 break;
1179 ✗ dst2[i] -= (dstSliceY >> ((i == 1 || i == 2) ? c->chrDstVSubSample : 0)) * dstStride2[i];
1180 }
1181 ✗ offset = dstSliceY;
1182 ✗ slice_h = dstSliceH;
1183 }
1184
1185 ✗ ret = c->convert_unscaled(c, src2, srcStride2, offset, slice_h,
1186 dst2, dstStride2);
1187 ✗ if (scale_dst)
1188 ✗ dst2[0] += dstSliceY * dstStride2[0];
1189 } else {
1190 156 ret = ff_swscale(c, src2, srcStride2, srcSliceY_internal, srcSliceH,
1191 dst2, dstStride2, dstSliceY, dstSliceH);
1192 }
1193
1194
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 156 if (c->dstXYZ && !(c->srcXYZ && sws->src_w==sws->dst_w && sws->src_h==sws->dst_h)) {
1195 uint8_t *dst;
1196
1197 ✗ if (scale_dst) {
1198 ✗ dst = dst2[0];
1199 } else {
1200 ✗ int dstY = c->dstY ? c->dstY : srcSliceY + srcSliceH;
1201
1202 ✗ av_assert0(dstY >= ret);
1203 ✗ av_assert0(ret >= 0);
1204 ✗ av_assert0(sws->dst_h >= dstY);
1205 ✗ dst = dst2[0] + (dstY - ret) * dstStride2[0];
1206 }
1207
1208 /* replace on the same data */
1209 ✗ c->rgb48Toxyz12(c, dst, dstStride2[0], dst, dstStride2[0], sws->dst_w, ret);
1210 }
1211
1212 /* reset slice direction at end of frame */
1213
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 156 if ((srcSliceY_internal + srcSliceH == sws->src_h) || scale_dst)
1214 90 c->sliceDir = 0;
1215
1216 156 return ret;
1217 }
1218
1219 ✗ void sws_frame_end(SwsContext *sws)
1220 {
1221 ✗ SwsInternal *c = sws_internal(sws);
1222 ✗ if (!c->is_legacy_init)
1223 ✗ return;
1224 ✗ av_frame_unref(c->frame_src);
1225 ✗ av_frame_unref(c->frame_dst);
1226 ✗ c->src_ranges.nb_ranges = 0;
1227 }
1228
1229 2154 static int ptr_in_buf(const uint8_t *ptr, const AVBufferRef *buf)
1230 {
1231 2154 uintptr_t ptr_val = (uintptr_t) ptr;
1232 2154 uintptr_t buf_start = (uintptr_t) buf->data;
1233
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 2154 return ptr_val >= buf_start && ptr_val < buf_start + buf->size;
1234 }
1235
1236 /* Similar to av_frame_ref() but only references planes in the given map */
1237 79848 static int frame_ref(AVFrame *dst, const AVFrame *src, const int plane_copy[4])
1238 {
1239 79848 int copied[AV_NUM_DATA_POINTERS] = {0};
1240 79848 int nb_copied = 0;
1241
1242
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 399240 for (int i = 0; i < 4; i++) {
1243 319392 const int idx = plane_copy[i];
1244
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 319392 if (idx < 0)
1245 318402 continue;
1246 /* Find corresponding source buffer */
1247 990 uint8_t *src_data = src->data[idx];
1248
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 990 if (!src_data)
1249 ✗ return AVERROR(EINVAL);
1250
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 2154 for (int j = 0; j < FF_ARRAY_ELEMS(src->buf); j++) {
1251 2154 AVBufferRef *buf = src->buf[j];
1252
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 2154 if (!buf)
1253 ✗ break;
1254
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✓ Branch 2 taken 990 times.
 2154 if (!ptr_in_buf(src_data, buf))
1255 1164 continue;
1256
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✓ Branch 1 taken 46 times.
 990 if (!copied[j]) {
1257 944 AVBufferRef *ref = av_buffer_ref(buf);
1258
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 944 if (!ref)
1259 ✗ return AVERROR(ENOMEM);
1260 944 dst->buf[nb_copied++] = ref;
1261 944 copied[j] = 1;
1262 }
1263 990 dst->data[i] = src_data;
1264 990 dst->linesize[i] = src->linesize[idx];
1265 990 break;
1266 }
1267 }
1268
1269 79848 return 0;
1270 }
1271
1272 /* Returns the number of buffers allocated */
1273 79848 static int frame_alloc_buffers(SwsContext *sws, AVFrame *frame)
1274 {
1275 79848 SwsInternal *c = sws_internal(sws);
1276 79848 FFFramePool *pool = &c->frame_pool;
1277
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 79848 av_assert0(!frame->hw_frames_ctx);
1278
1279 /* Find first free buffer slot */
1280 79848 int buf_start = 0;
1281
2/2
✓ Branch 0 taken 944 times.
✓ Branch 1 taken 79848 times.
 80792 while (frame->buf[buf_start])
1282 944 buf_start++;
1283 79848 int nb_bufs = 0;
1284
1285 79848 const int nb_planes = av_pix_fmt_count_planes(frame->format);
1286
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 317465 for (int i = 0; i < nb_planes; i++) {
1287
2/2
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✓ Branch 1 taken 236627 times.
 237617 if (frame->data[i])
1288 990 continue; /* already ref'd by frame_ref */
1289
1290 236627 const int idx = buf_start + nb_bufs++;
1291 av_assert1(idx < FF_ARRAY_ELEMS(frame->buf));
1292 236627 frame->buf[idx] = av_buffer_pool_get(pool->pools[i]);
1293
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 236627 if (!frame->buf[idx]) {
1294 ✗ av_frame_unref(frame);
1295 ✗ return AVERROR(ENOMEM);
1296 }
1297 236627 frame->data[i] = frame->buf[idx]->data;
1298 236627 frame->linesize[i] = pool->linesize[i];
1299 }
1300
1301 79848 return nb_bufs;
1302 }
1303
1304 ✗ int sws_frame_start(SwsContext *sws, AVFrame *dst, const AVFrame *src)
1305 {
1306 ✗ SwsInternal *c = sws_internal(sws);
1307 ✗ int ret, allocated = 0;
1308 ✗ if (!c->is_legacy_init)
1309 ✗ return AVERROR(EINVAL);
1310
1311 ✗ ret = av_frame_ref(c->frame_src, src);
1312 ✗ if (ret < 0)
1313 ✗ return ret;
1314
1315 ✗ if (!dst->buf[0]) {
1316 ✗ dst->width = sws->dst_w;
1317 ✗ dst->height = sws->dst_h;
1318 ✗ dst->format = sws->dst_format;
1319
1320 ✗ ret = av_frame_get_buffer(dst, 0);
1321 ✗ if (ret < 0)
1322 ✗ return ret;
1323 ✗ allocated = 1;
1324 }
1325
1326 ✗ ret = av_frame_ref(c->frame_dst, dst);
1327 ✗ if (ret < 0) {
1328 ✗ if (allocated)
1329 ✗ av_frame_unref(dst);
1330
1331 ✗ return ret;
1332 }
1333
1334 ✗ return 0;
1335 }
1336
1337 ✗ int sws_send_slice(SwsContext *sws, unsigned int slice_start,
1338 unsigned int slice_height)
1339 {
1340 ✗ SwsInternal *c = sws_internal(sws);
1341 int ret;
1342 ✗ if (!c->is_legacy_init)
1343 ✗ return AVERROR(EINVAL);
1344
1345 ✗ ret = ff_range_add(&c->src_ranges, slice_start, slice_height);
1346 ✗ if (ret < 0)
1347 ✗ return ret;
1348
1349 ✗ return 0;
1350 }
1351
1352 ✗ unsigned int sws_receive_slice_alignment(const SwsContext *sws)
1353 {
1354 ✗ SwsInternal *c = sws_internal(sws);
1355 ✗ if (c->slice_ctx)
1356 ✗ return sws_internal(c->slice_ctx[0])->dst_slice_align;
1357
1358 ✗ return c->dst_slice_align;
1359 }
1360
1361 ✗ int sws_receive_slice(SwsContext *sws, unsigned int slice_start,
1362 unsigned int slice_height)
1363 {
1364 ✗ SwsInternal *c = sws_internal(sws);
1365 ✗ unsigned int align = sws_receive_slice_alignment(sws);
1366 uint8_t *dst[4];
1367 ✗ if (!c->is_legacy_init)
1368 ✗ return AVERROR(EINVAL);
1369
1370 /* wait until complete input has been received */
1371 ✗ if (!(c->src_ranges.nb_ranges == 1 &&
1372 ✗ c->src_ranges.ranges[0].start == 0 &&
1373 ✗ c->src_ranges.ranges[0].len == sws->src_h))
1374 ✗ return AVERROR(EAGAIN);
1375
1376 ✗ if ((slice_start > 0 || slice_height < sws->dst_h) &&
1377 ✗ (slice_start % align || slice_height % align)) {
1378 ✗ av_log(c, AV_LOG_ERROR,
1379 "Incorrectly aligned output: %u/%u not multiples of %u\n",
1380 slice_start, slice_height, align);
1381 ✗ return AVERROR(EINVAL);
1382 }
1383
1384 ✗ if (c->slicethread) {
1385 ✗ int nb_jobs = c->nb_slice_ctx;
1386 ✗ if (c->slice_ctx[0]->dither == SWS_DITHER_ED)
1387 ✗ nb_jobs = 1;
1388
1389 ✗ c->dst_slice_start = slice_start;
1390 ✗ c->dst_slice_height = slice_height;
1391
1392 ✗ return avpriv_slicethread_execute2(c->slicethread, nb_jobs, 0);
1393 }
1394
1395 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(dst); i++) {
1396 ✗ ptrdiff_t offset = c->frame_dst->linesize[i] * (ptrdiff_t)(slice_start >> c->chrDstVSubSample);
1397 ✗ dst[i] = FF_PTR_ADD(c->frame_dst->data[i], offset);
1398 }
1399
1400 ✗ return scale_internal(sws, (const uint8_t * const *)c->frame_src->data,
1401 ✗ c->frame_src->linesize, 0, sws->src_h,
1402 ✗ dst, c->frame_dst->linesize, slice_start, slice_height);
1403 }
1404
1405 185513 int sws_scale_frame(SwsContext *sws, AVFrame *dst, const AVFrame *src)
1406 {
1407 185513 int ret, allocated = 0;
1408 185513 SwsInternal *c = sws_internal(sws);
1409
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 185513 if (!src || !dst)
1410 ✗ return AVERROR(EINVAL);
1411
1412
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 185513 if (c->is_legacy_init) {
1413 /* Context has been initialized with explicit values, fall back to
1414 * legacy API behavior. */
1415 ✗ ret = sws_frame_start(sws, dst, src);
1416 ✗ if (ret < 0)
1417 ✗ return ret;
1418
1419 ✗ ret = sws_send_slice(sws, 0, src->height);
1420 ✗ if (ret >= 0)
1421 ✗ ret = sws_receive_slice(sws, 0, dst->height);
1422
1423 ✗ sws_frame_end(sws);
1424
1425 ✗ return ret;
1426 }
1427
1428 185513 ret = sws_frame_setup(sws, dst, src);
1429
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 185513 if (ret < 0)
1430 ✗ return ret;
1431
1432
1/2
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 185513 if (!src->data[0])
1433 ✗ return 0;
1434
1435 185513 const SwsGraph *top = c->graph[FIELD_TOP];
1436 185513 const SwsGraph *bot = c->graph[FIELD_BOTTOM];
1437
2/2
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 185513 if (dst->data[0]) /* user-provided buffers */
1438 105665 goto process_frame;
1439
1440 /* Sanity */
1441 79848 memset(dst->buf, 0, sizeof(dst->buf));
1442 79848 memset(dst->data, 0, sizeof(dst->data));
1443 79848 memset(dst->linesize, 0, sizeof(dst->linesize));
1444 79848 dst->extended_data = dst->data;
1445
1446
1/2
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✗ Branch 1 not taken.
 79848 if (src->buf[0]) {
1447 /* Determine end-to-end plane copy map */
1448 int plane_copy[FF_ARRAY_ELEMS(top->plane_copy)];
1449 79848 memcpy(plane_copy, top->plane_copy, sizeof(plane_copy));
1450
1/4
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 79848 for (int i = 0; bot && i < FF_ARRAY_ELEMS(plane_copy); i++) {
1451 ✗ if (bot->plane_copy[i] != plane_copy[i])
1452 ✗ plane_copy[i] = -1;
1453 }
1454
1455 79848 ret = frame_ref(dst, src, plane_copy);
1456
1/2
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 79848 if (ret < 0)
1457 ✗ return ret;
1458 }
1459
1460 /* Allocate any missing buffers not yet ref'd */
1461 79848 ret = frame_alloc_buffers(sws, dst);
1462
1/2
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 79848 if (ret < 0)
1463 ✗ return ret;
1464
2/2
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✓ Branch 1 taken 79548 times.
 79848 else if (!ret)
1465 300 return 0; /* no buffers allocated, no-op (all ref'd) */
1466 else
1467 79548 allocated = 1;
1468
1469 185213 process_frame:
1470
3/4
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 370426 for (int field = 0; field < (bot ? 2 : 1); field++) {
1471 185213 ret = ff_sws_graph_run(c->graph[field], dst, src);
1472
1/2
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✓ Branch 1 taken 185213 times.
 185213 if (ret < 0) {
1473 ✗ if (allocated)
1474 ✗ av_frame_unref(dst);
1475 ✗ return ret;
1476 }
1477 }
1478
1479 185213 return 0;
1480 }
1481
1482 225308 static int validate_params(SwsContext *ctx)
1483 {
1484 #define VALIDATE(field, min, max) \
1485 if (ctx->field < min || ctx->field > max) { \
1486 av_log(ctx, AV_LOG_ERROR, "'%s' (%d) out of range [%d, %d]\n", \
1487 #field, (int) ctx->field, min, max); \
1488 return AVERROR(EINVAL); \
1489 }
1490
1491
2/4
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 225308 VALIDATE(threads, 0, SWS_MAX_THREADS);
1492
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 225308 VALIDATE(dither, 0, SWS_DITHER_NB - 1)
1493
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 225308 VALIDATE(alpha_blend, 0, SWS_ALPHA_BLEND_NB - 1)
1494
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 225308 VALIDATE(intent, 0, SWS_INTENT_NB - 1);
1495
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 225308 VALIDATE(scaler, 0, SWS_SCALE_NB - 1)
1496
1/2
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 225308 VALIDATE(scaler_sub, 0, SWS_SCALE_NB - 1)
1497 225308 return 0;
1498 }
1499
1500 225308 int sws_frame_setup(SwsContext *ctx, const AVFrame *dst, const AVFrame *src)
1501 {
1502 225308 SwsInternal *s = sws_internal(ctx);
1503 const char *err_msg;
1504 int ret;
1505
1506
2/4
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 225308 if (!src || !dst)
1507 ✗ return AVERROR(EINVAL);
1508
1/2
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 225308 if ((ret = validate_params(ctx)) < 0)
1509 ✗ return ret;
1510
1511 /* For now, if a single frame has a context, then both need a context */
1512
1/2
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 225308 if (!!src->hw_frames_ctx != !!dst->hw_frames_ctx) {
1513 ✗ return AVERROR(ENOTSUP);
1514
1/2
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✓ Branch 1 taken 225308 times.
 225308 } else if (!!src->hw_frames_ctx) {
1515 /* Both hardware frames must already be allocated */
1516 ✗ if (!src->data[0] || !dst->data[0])
1517 ✗ return AVERROR(EINVAL);
1518
1519 AVHWFramesContext *src_hwfc, *dst_hwfc;
1520 ✗ src_hwfc = (AVHWFramesContext *)src->hw_frames_ctx->data;
1521 ✗ dst_hwfc = (AVHWFramesContext *)dst->hw_frames_ctx->data;
1522
1523 /* Both frames must live on the same device */
1524 ✗ if (src_hwfc->device_ref->data != dst_hwfc->device_ref->data)
1525 ✗ return AVERROR(EINVAL);
1526
1527 /* Only Vulkan devices are supported */
1528 AVHWDeviceContext *dev_ctx;
1529 ✗ dev_ctx = (AVHWDeviceContext *)src_hwfc->device_ref->data;
1530 ✗ if (dev_ctx->type != AV_HWDEVICE_TYPE_VULKAN)
1531 ✗ return AVERROR(ENOTSUP);
1532
1533 #if CONFIG_UNSTABLE && CONFIG_VULKAN
1534 ret = ff_sws_vk_init(ctx, src_hwfc->device_ref);
1535 if (ret < 0)
1536 return ret;
1537 #endif
1538 }
1539
1540 225308 int dst_width = dst->width;
1541 225308 const SwsBackend backends = ff_sws_enabled_backends(ctx);
1542
1/2
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✗ Branch 1 not taken.
 225308 for (int field = 0; field < 2; field++) {
1543 225308 SwsFormat src_fmt = ff_fmt_from_frame(src, field);
1544 225308 SwsFormat dst_fmt = ff_fmt_from_frame(dst, field);
1545 int src_ok, dst_ok;
1546
1547
1/2
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 225308 if ((src->flags ^ dst->flags) & AV_FRAME_FLAG_INTERLACED) {
1548 ✗ err_msg = "Cannot convert interlaced to progressive frames or vice versa.\n";
1549 ✗ ret = AVERROR(EINVAL);
1550 ✗ goto fail;
1551 }
1552
1553 225308 src_ok = ff_test_fmt(backends, &src_fmt, 0);
1554 225308 dst_ok = ff_test_fmt(backends, &dst_fmt, 1);
1555
2/6
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 225308 if ((!src_ok || !dst_ok) && !ff_fmt_equal(&src_fmt, &dst_fmt)) {
1556 ✗ err_msg = src_ok ? "Unsupported output" : "Unsupported input";
1557 ✗ ret = AVERROR(ENOTSUP);
1558 ✗ goto fail;
1559 }
1560
1561
2/2
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✓ Branch 1 taken 218896 times.
 225308 if (!s->graph[field]) {
1562 6412 s->graph[field] = ff_sws_graph_alloc();
1563
1/2
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✓ Branch 1 taken 6412 times.
 6412 if (!s->graph[field]) {
1564 ✗ err_msg = "Failed allocating scaling graph";
1565 ✗ ret = AVERROR(ENOMEM);
1566 ✗ goto fail;
1567 }
1568 }
1569
1570 225308 ret = ff_sws_graph_reinit(s->graph[field], ctx, &dst_fmt, &src_fmt);
1571
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 225304 times.
 225308 if (ret < 0) {
1572 4 err_msg = "Failed initializing scaling graph";
1573 4 goto fail;
1574 }
1575
1576 225304 const SwsGraph *graph = s->graph[field];
1577
3/4
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✓ Branch 1 taken 10 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 225294 times.
 225304 if (graph->incomplete && ctx->flags & SWS_STRICT) {
1578 ✗ err_msg = "Incomplete scaling graph";
1579 ✗ ret = AVERROR(EINVAL);
1580 ✗ goto fail;
1581 }
1582
1583
2/2
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✓ Branch 1 taken 440 times.
 225304 if (!graph->noop) {
1584
1/2
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 224864 av_assert0(graph->num_passes);
1585 224864 const SwsPass *last_pass = graph->passes[graph->num_passes - 1];
1586 224864 const int aligned_w = ff_sws_pass_aligned_width(last_pass, dst->width);
1587 224864 dst_width = FFMAX(dst_width, aligned_w);
1588 }
1589
1590
1/2
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✗ Branch 1 not taken.
 225304 if (!src_fmt.interlaced) {
1591 225304 ff_sws_graph_free(&s->graph[FIELD_BOTTOM]);
1592 225304 break;
1593 }
1594
1595 ✗ continue;
1596
1597 4 fail:
1598 8 av_log(ctx, AV_LOG_ERROR, "%s (%s): fmt:%s csp:%s prim:%s trc:%s ->"
1599 " fmt:%s csp:%s prim:%s trc:%s\n",
1600 4 err_msg, av_err2str(ret),
1601 av_get_pix_fmt_name(src_fmt.format), av_color_space_name(src_fmt.csp),
1602 av_color_primaries_name(src_fmt.color.prim), av_color_transfer_name(src_fmt.color.trc),
1603 av_get_pix_fmt_name(dst_fmt.format), av_color_space_name(dst_fmt.csp),
1604 av_color_primaries_name(dst_fmt.color.prim), av_color_transfer_name(dst_fmt.color.trc));
1605
1606
2/2
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 12 for (int i = 0; i < FF_ARRAY_ELEMS(s->graph); i++)
1607 8 ff_sws_graph_free(&s->graph[i]);
1608
1609 4 return ret;
1610 }
1611
1612
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 225304 if (!dst->hw_frames_ctx) {
1613 225304 ret = ff_frame_pool_video_reinit(&s->frame_pool, dst_width, dst->height,
1614 225304 dst->format, av_cpu_max_align());
1615
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 225304 if (ret < 0)
1616 ✗ return ret;
1617 }
1618
1619 225304 return 0;
1620 }
1621
1622 /**
1623 * swscale wrapper, so we don't need to export the SwsContext.
1624 * Assumes planar YUV to be in YUV order instead of YVU.
1625 */
1626 156 int attribute_align_arg sws_scale(SwsContext *sws,
1627 const uint8_t * const srcSlice[],
1628 const int srcStride[], int srcSliceY,
1629 int srcSliceH, uint8_t *const dst[],
1630 const int dstStride[])
1631 {
1632 156 SwsInternal *c = sws_internal(sws);
1633
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 156 if (!c->is_legacy_init)
1634 ✗ return AVERROR(EINVAL);
1635
1636
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 156 if (c->nb_slice_ctx) {
1637 ✗ sws = c->slice_ctx[0];
1638 ✗ c = sws_internal(sws);
1639 }
1640
1641 156 return scale_internal(sws, srcSlice, srcStride, srcSliceY, srcSliceH,
1642 dst, dstStride, 0, sws->dst_h);
1643 }
1644
1645 ✗ int ff_sws_slice_worker(void *priv, int jobnr, int threadnr,
1646 int nb_jobs, int nb_threads)
1647 {
1648 ✗ SwsInternal *parent = priv;
1649 ✗ SwsContext *sws = parent->slice_ctx[threadnr];
1650 ✗ SwsInternal *c = sws_internal(sws);
1651
1652 ✗ const int slice_height = FFALIGN(FFMAX((parent->dst_slice_height + nb_jobs - 1) / nb_jobs, 1),
1653 c->dst_slice_align);
1654 ✗ const int slice_start = jobnr * slice_height;
1655 ✗ const int slice_end = FFMIN((jobnr + 1) * slice_height, parent->dst_slice_height);
1656 ✗ int err = 0;
1657
1658 ✗ if (slice_end > slice_start) {
1659 ✗ uint8_t *dst[4] = { NULL };
1660
1661 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(dst) && parent->frame_dst->data[i]; i++) {
1662 ✗ const int vshift = (i == 1 || i == 2) ? c->chrDstVSubSample : 0;
1663 ✗ const ptrdiff_t offset = parent->frame_dst->linesize[i] *
1664 ✗ (ptrdiff_t)((slice_start + parent->dst_slice_start) >> vshift);
1665
1666 ✗ dst[i] = parent->frame_dst->data[i] + offset;
1667 }
1668
1669 ✗ err = scale_internal(sws, (const uint8_t * const *)parent->frame_src->data,
1670 ✗ parent->frame_src->linesize, 0, sws->src_h,
1671 ✗ dst, parent->frame_dst->linesize,
1672 ✗ parent->dst_slice_start + slice_start, slice_end - slice_start);
1673 }
1674
1675 ✗ if (err < 0)
1676 ✗ return err;
1677
1678 ✗ return 0; /* ff_slicethread_execute() aborts on non-zero */
1679 }
1680