2 * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
27 #include "swscale_internal.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/cpu.h"
31 #include "libavutil/avutil.h"
32 #include "libavutil/mathematics.h"
33 #include "libavutil/bswap.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/avassert.h"
36 #include "libavutil/avconfig.h"
38 DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
40 { 0, 1, 0, 1, 0, 1, 0, 1,},
41 { 1, 0, 1, 0, 1, 0, 1, 0,},
42 { 0, 1, 0, 1, 0, 1, 0, 1,},
43 { 1, 0, 1, 0, 1, 0, 1, 0,},
44 { 0, 1, 0, 1, 0, 1, 0, 1,},
45 { 1, 0, 1, 0, 1, 0, 1, 0,},
46 { 0, 1, 0, 1, 0, 1, 0, 1,},
47 { 1, 0, 1, 0, 1, 0, 1, 0,},
49 { 1, 2, 1, 2, 1, 2, 1, 2,},
50 { 3, 0, 3, 0, 3, 0, 3, 0,},
51 { 1, 2, 1, 2, 1, 2, 1, 2,},
52 { 3, 0, 3, 0, 3, 0, 3, 0,},
53 { 1, 2, 1, 2, 1, 2, 1, 2,},
54 { 3, 0, 3, 0, 3, 0, 3, 0,},
55 { 1, 2, 1, 2, 1, 2, 1, 2,},
56 { 3, 0, 3, 0, 3, 0, 3, 0,},
58 { 2, 4, 3, 5, 2, 4, 3, 5,},
59 { 6, 0, 7, 1, 6, 0, 7, 1,},
60 { 3, 5, 2, 4, 3, 5, 2, 4,},
61 { 7, 1, 6, 0, 7, 1, 6, 0,},
62 { 2, 4, 3, 5, 2, 4, 3, 5,},
63 { 6, 0, 7, 1, 6, 0, 7, 1,},
64 { 3, 5, 2, 4, 3, 5, 2, 4,},
65 { 7, 1, 6, 0, 7, 1, 6, 0,},
67 { 4, 8, 7, 11, 4, 8, 7, 11,},
68 { 12, 0, 15, 3, 12, 0, 15, 3,},
69 { 6, 10, 5, 9, 6, 10, 5, 9,},
70 { 14, 2, 13, 1, 14, 2, 13, 1,},
71 { 4, 8, 7, 11, 4, 8, 7, 11,},
72 { 12, 0, 15, 3, 12, 0, 15, 3,},
73 { 6, 10, 5, 9, 6, 10, 5, 9,},
74 { 14, 2, 13, 1, 14, 2, 13, 1,},
76 { 9, 17, 15, 23, 8, 16, 14, 22,},
77 { 25, 1, 31, 7, 24, 0, 30, 6,},
78 { 13, 21, 11, 19, 12, 20, 10, 18,},
79 { 29, 5, 27, 3, 28, 4, 26, 2,},
80 { 8, 16, 14, 22, 9, 17, 15, 23,},
81 { 24, 0, 30, 6, 25, 1, 31, 7,},
82 { 12, 20, 10, 18, 13, 21, 11, 19,},
83 { 28, 4, 26, 2, 29, 5, 27, 3,},
85 { 18, 34, 30, 46, 17, 33, 29, 45,},
86 { 50, 2, 62, 14, 49, 1, 61, 13,},
87 { 26, 42, 22, 38, 25, 41, 21, 37,},
88 { 58, 10, 54, 6, 57, 9, 53, 5,},
89 { 16, 32, 28, 44, 19, 35, 31, 47,},
90 { 48, 0, 60, 12, 51, 3, 63, 15,},
91 { 24, 40, 20, 36, 27, 43, 23, 39,},
92 { 56, 8, 52, 4, 59, 11, 55, 7,},
94 { 18, 34, 30, 46, 17, 33, 29, 45,},
95 { 50, 2, 62, 14, 49, 1, 61, 13,},
96 { 26, 42, 22, 38, 25, 41, 21, 37,},
97 { 58, 10, 54, 6, 57, 9, 53, 5,},
98 { 16, 32, 28, 44, 19, 35, 31, 47,},
99 { 48, 0, 60, 12, 51, 3, 63, 15,},
100 { 24, 40, 20, 36, 27, 43, 23, 39,},
101 { 56, 8, 52, 4, 59, 11, 55, 7,},
103 { 36, 68, 60, 92, 34, 66, 58, 90,},
104 { 100, 4,124, 28, 98, 2,122, 26,},
105 { 52, 84, 44, 76, 50, 82, 42, 74,},
106 { 116, 20,108, 12,114, 18,106, 10,},
107 { 32, 64, 56, 88, 38, 70, 62, 94,},
108 { 96, 0,120, 24,102, 6,126, 30,},
109 { 48, 80, 40, 72, 54, 86, 46, 78,},
110 { 112, 16,104, 8,118, 22,110, 14,},
113 static const uint16_t dither_scale[15][16]={
114 { 2, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,},
115 { 2, 3, 7, 7, 13, 13, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,},
116 { 3, 3, 4, 15, 15, 29, 57, 57, 57, 113, 113, 113, 113, 113, 113, 113,},
117 { 3, 4, 4, 5, 31, 31, 61, 121, 241, 241, 241, 241, 481, 481, 481, 481,},
118 { 3, 4, 5, 5, 6, 63, 63, 125, 249, 497, 993, 993, 993, 993, 993, 1985,},
119 { 3, 5, 6, 6, 6, 7, 127, 127, 253, 505, 1009, 2017, 4033, 4033, 4033, 4033,},
120 { 3, 5, 6, 7, 7, 7, 8, 255, 255, 509, 1017, 2033, 4065, 8129,16257,16257,},
121 { 3, 5, 6, 8, 8, 8, 8, 9, 511, 511, 1021, 2041, 4081, 8161,16321,32641,},
122 { 3, 5, 7, 8, 9, 9, 9, 9, 10, 1023, 1023, 2045, 4089, 8177,16353,32705,},
123 { 3, 5, 7, 8, 10, 10, 10, 10, 10, 11, 2047, 2047, 4093, 8185,16369,32737,},
124 { 3, 5, 7, 8, 10, 11, 11, 11, 11, 11, 12, 4095, 4095, 8189,16377,32753,},
125 { 3, 5, 7, 9, 10, 12, 12, 12, 12, 12, 12, 13, 8191, 8191,16381,32761,},
126 { 3, 5, 7, 9, 10, 12, 13, 13, 13, 13, 13, 13, 14,16383,16383,32765,},
127 { 3, 5, 7, 9, 10, 12, 14, 14, 14, 14, 14, 14, 14, 15,32767,32767,},
128 { 3, 5, 7, 9, 11, 12, 14, 15, 15, 15, 15, 15, 15, 15, 16,65535,},
132 static void fillPlane(uint8_t *plane, int stride, int width, int height, int y,
136 uint8_t *ptr = plane + stride * y;
137 for (i = 0; i < height; i++) {
138 memset(ptr, val, width);
143 static void copyPlane(const uint8_t *src, int srcStride,
144 int srcSliceY, int srcSliceH, int width,
145 uint8_t *dst, int dstStride)
147 dst += dstStride * srcSliceY;
148 if (dstStride == srcStride && srcStride > 0) {
149 memcpy(dst, src, srcSliceH * dstStride);
152 for (i = 0; i < srcSliceH; i++) {
153 memcpy(dst, src, width);
160 static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[],
161 int srcStride[], int srcSliceY,
162 int srcSliceH, uint8_t *dstParam[],
165 uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2;
167 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
168 dstParam[0], dstStride[0]);
170 if (c->dstFormat == AV_PIX_FMT_NV12)
171 interleaveBytes(src[1], src[2], dst, c->srcW / 2, srcSliceH / 2,
172 srcStride[1], srcStride[2], dstStride[1]);
174 interleaveBytes(src[2], src[1], dst, c->srcW / 2, srcSliceH / 2,
175 srcStride[2], srcStride[1], dstStride[1]);
180 static int nv12ToPlanarWrapper(SwsContext *c, const uint8_t *src[],
181 int srcStride[], int srcSliceY,
182 int srcSliceH, uint8_t *dstParam[],
185 uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
186 uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
188 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
189 dstParam[0], dstStride[0]);
191 if (c->srcFormat == AV_PIX_FMT_NV12)
192 deinterleaveBytes(src[1], dst1, dst2,c->srcW / 2, srcSliceH / 2,
193 srcStride[1], dstStride[1], dstStride[2]);
195 deinterleaveBytes(src[1], dst2, dst1, c->srcW / 2, srcSliceH / 2,
196 srcStride[1], dstStride[2], dstStride[1]);
201 static int planarToP010Wrapper(SwsContext *c, const uint8_t *src8[],
202 int srcStride[], int srcSliceY,
203 int srcSliceH, uint8_t *dstParam8[],
206 const uint16_t **src = (const uint16_t**)src8;
207 uint16_t *dstY = (uint16_t*)(dstParam8[0] + dstStride[0] * srcSliceY);
208 uint16_t *dstUV = (uint16_t*)(dstParam8[1] + dstStride[1] * srcSliceY / 2);
211 av_assert0(!(srcStride[0] % 2 || srcStride[1] % 2 || srcStride[2] % 2 ||
212 dstStride[0] % 2 || dstStride[1] % 2));
214 for (y = 0; y < srcSliceH; y++) {
215 uint16_t *tdstY = dstY;
216 const uint16_t *tsrc0 = src[0];
217 for (x = c->srcW; x > 0; x--) {
218 *tdstY++ = *tsrc0++ << 6;
220 src[0] += srcStride[0] / 2;
221 dstY += dstStride[0] / 2;
224 uint16_t *tdstUV = dstUV;
225 const uint16_t *tsrc1 = src[1];
226 const uint16_t *tsrc2 = src[2];
227 for (x = c->srcW / 2; x > 0; x--) {
228 *tdstUV++ = *tsrc1++ << 6;
229 *tdstUV++ = *tsrc2++ << 6;
231 src[1] += srcStride[1] / 2;
232 src[2] += srcStride[2] / 2;
233 dstUV += dstStride[1] / 2;
240 #if AV_HAVE_BIGENDIAN
241 #define output_pixel(p, v) do { \
242 uint16_t *pp = (p); \
246 #define output_pixel(p, v) (*p) = (v)
249 static int planar8ToP01xleWrapper(SwsContext *c, const uint8_t *src[],
250 int srcStride[], int srcSliceY,
251 int srcSliceH, uint8_t *dstParam8[],
254 uint16_t *dstY = (uint16_t*)(dstParam8[0] + dstStride[0] * srcSliceY);
255 uint16_t *dstUV = (uint16_t*)(dstParam8[1] + dstStride[1] * srcSliceY / 2);
258 av_assert0(!(dstStride[0] % 2 || dstStride[1] % 2));
260 for (y = 0; y < srcSliceH; y++) {
261 uint16_t *tdstY = dstY;
262 const uint8_t *tsrc0 = src[0];
263 for (x = c->srcW; x > 0; x--) {
265 output_pixel(tdstY++, t | (t << 8));
267 src[0] += srcStride[0];
268 dstY += dstStride[0] / 2;
271 uint16_t *tdstUV = dstUV;
272 const uint8_t *tsrc1 = src[1];
273 const uint8_t *tsrc2 = src[2];
274 for (x = c->srcW / 2; x > 0; x--) {
276 output_pixel(tdstUV++, t | (t << 8));
278 output_pixel(tdstUV++, t | (t << 8));
280 src[1] += srcStride[1];
281 src[2] += srcStride[2];
282 dstUV += dstStride[1] / 2;
291 static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
292 int srcStride[], int srcSliceY, int srcSliceH,
293 uint8_t *dstParam[], int dstStride[])
295 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
297 yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
298 srcStride[1], dstStride[0]);
303 static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[],
304 int srcStride[], int srcSliceY, int srcSliceH,
305 uint8_t *dstParam[], int dstStride[])
307 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
309 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
310 srcStride[1], dstStride[0]);
315 static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
316 int srcStride[], int srcSliceY, int srcSliceH,
317 uint8_t *dstParam[], int dstStride[])
319 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
321 yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
322 srcStride[1], dstStride[0]);
327 static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[],
328 int srcStride[], int srcSliceY, int srcSliceH,
329 uint8_t *dstParam[], int dstStride[])
331 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
333 yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
334 srcStride[1], dstStride[0]);
339 static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
340 int srcStride[], int srcSliceY, int srcSliceH,
341 uint8_t *dstParam[], int dstStride[])
343 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
344 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
345 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
347 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
348 dstStride[1], srcStride[0]);
351 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
356 static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
357 int srcStride[], int srcSliceY, int srcSliceH,
358 uint8_t *dstParam[], int dstStride[])
360 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
361 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
362 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
364 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
365 dstStride[1], srcStride[0]);
370 static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
371 int srcStride[], int srcSliceY, int srcSliceH,
372 uint8_t *dstParam[], int dstStride[])
374 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
375 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
376 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
378 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
379 dstStride[1], srcStride[0]);
382 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
387 static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
388 int srcStride[], int srcSliceY, int srcSliceH,
389 uint8_t *dstParam[], int dstStride[])
391 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
392 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
393 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
395 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
396 dstStride[1], srcStride[0]);
401 static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels,
402 const uint8_t *palette)
405 for (i = 0; i < num_pixels; i++)
406 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24);
409 static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels,
410 const uint8_t *palette)
414 for (i = 0; i < num_pixels; i++)
415 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1];
418 static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels,
419 const uint8_t *palette)
423 for (i = 0; i < num_pixels; i++) {
425 dst[0] = palette[src[i << 1] * 4 + 0];
426 dst[1] = palette[src[i << 1] * 4 + 1];
427 dst[2] = palette[src[i << 1] * 4 + 2];
432 static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[],
433 int srcStride[], int srcSliceY, int srcSliceH,
434 uint8_t *dst[], int dstStride[])
438 for (p = 0; p < 4; p++) {
439 int srcstr = srcStride[p] / 2;
440 int dststr = dstStride[p] / 2;
441 uint16_t *dstPtr = (uint16_t *) dst[p];
442 const uint16_t *srcPtr = (const uint16_t *) src[p];
443 int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
444 if(!dstPtr || !srcPtr)
446 dstPtr += (srcSliceY >> c->chrDstVSubSample) * dststr;
447 for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
448 for (j = 0; j < min_stride; j++) {
449 dstPtr[j] = av_bswap16(srcPtr[j]);
459 static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
460 int srcSliceY, int srcSliceH, uint8_t *dst[],
463 const enum AVPixelFormat srcFormat = c->srcFormat;
464 const enum AVPixelFormat dstFormat = c->dstFormat;
465 void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
466 const uint8_t *palette) = NULL;
468 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
469 const uint8_t *srcPtr = src[0];
471 if (srcFormat == AV_PIX_FMT_YA8) {
473 case AV_PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
474 case AV_PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
475 case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
476 case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
477 case AV_PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
478 case AV_PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
480 } else if (usePal(srcFormat)) {
482 case AV_PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
483 case AV_PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
484 case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
485 case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
486 case AV_PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
487 case AV_PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
492 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
493 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
495 for (i = 0; i < srcSliceH; i++) {
496 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
497 srcPtr += srcStride[0];
498 dstPtr += dstStride[0];
505 static void packed16togbra16(const uint8_t *src, int srcStride,
506 uint16_t *dst[], int dstStride[], int srcSliceH,
507 int src_alpha, int swap, int shift, int width)
510 int dst_alpha = dst[3] != NULL;
511 for (h = 0; h < srcSliceH; h++) {
512 uint16_t *src_line = (uint16_t *)(src + srcStride * h);
515 if (src_alpha && dst_alpha) {
516 for (x = 0; x < width; x++) {
517 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
518 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
519 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
520 dst[3][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
522 } else if (dst_alpha) {
523 for (x = 0; x < width; x++) {
524 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
525 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
526 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
529 } else if (src_alpha) {
530 for (x = 0; x < width; x++) {
531 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
532 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
533 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
537 for (x = 0; x < width; x++) {
538 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
539 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
540 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
545 if (src_alpha && dst_alpha) {
546 for (x = 0; x < width; x++) {
547 dst[0][x] = av_bswap16(*src_line++ >> shift);
548 dst[1][x] = av_bswap16(*src_line++ >> shift);
549 dst[2][x] = av_bswap16(*src_line++ >> shift);
550 dst[3][x] = av_bswap16(*src_line++ >> shift);
552 } else if (dst_alpha) {
553 for (x = 0; x < width; x++) {
554 dst[0][x] = av_bswap16(*src_line++ >> shift);
555 dst[1][x] = av_bswap16(*src_line++ >> shift);
556 dst[2][x] = av_bswap16(*src_line++ >> shift);
559 } else if (src_alpha) {
560 for (x = 0; x < width; x++) {
561 dst[0][x] = av_bswap16(*src_line++ >> shift);
562 dst[1][x] = av_bswap16(*src_line++ >> shift);
563 dst[2][x] = av_bswap16(*src_line++ >> shift);
567 for (x = 0; x < width; x++) {
568 dst[0][x] = av_bswap16(*src_line++ >> shift);
569 dst[1][x] = av_bswap16(*src_line++ >> shift);
570 dst[2][x] = av_bswap16(*src_line++ >> shift);
575 if (src_alpha && dst_alpha) {
576 for (x = 0; x < width; x++) {
577 dst[0][x] = av_bswap16(*src_line++) >> shift;
578 dst[1][x] = av_bswap16(*src_line++) >> shift;
579 dst[2][x] = av_bswap16(*src_line++) >> shift;
580 dst[3][x] = av_bswap16(*src_line++) >> shift;
582 } else if (dst_alpha) {
583 for (x = 0; x < width; x++) {
584 dst[0][x] = av_bswap16(*src_line++) >> shift;
585 dst[1][x] = av_bswap16(*src_line++) >> shift;
586 dst[2][x] = av_bswap16(*src_line++) >> shift;
589 } else if (src_alpha) {
590 for (x = 0; x < width; x++) {
591 dst[0][x] = av_bswap16(*src_line++) >> shift;
592 dst[1][x] = av_bswap16(*src_line++) >> shift;
593 dst[2][x] = av_bswap16(*src_line++) >> shift;
597 for (x = 0; x < width; x++) {
598 dst[0][x] = av_bswap16(*src_line++) >> shift;
599 dst[1][x] = av_bswap16(*src_line++) >> shift;
600 dst[2][x] = av_bswap16(*src_line++) >> shift;
605 if (src_alpha && dst_alpha) {
606 for (x = 0; x < width; x++) {
607 dst[0][x] = *src_line++ >> shift;
608 dst[1][x] = *src_line++ >> shift;
609 dst[2][x] = *src_line++ >> shift;
610 dst[3][x] = *src_line++ >> shift;
612 } else if (dst_alpha) {
613 for (x = 0; x < width; x++) {
614 dst[0][x] = *src_line++ >> shift;
615 dst[1][x] = *src_line++ >> shift;
616 dst[2][x] = *src_line++ >> shift;
619 } else if (src_alpha) {
620 for (x = 0; x < width; x++) {
621 dst[0][x] = *src_line++ >> shift;
622 dst[1][x] = *src_line++ >> shift;
623 dst[2][x] = *src_line++ >> shift;
627 for (x = 0; x < width; x++) {
628 dst[0][x] = *src_line++ >> shift;
629 dst[1][x] = *src_line++ >> shift;
630 dst[2][x] = *src_line++ >> shift;
634 for (i = 0; i < 4; i++)
635 dst[i] += dstStride[i] >> 1;
639 static int Rgb16ToPlanarRgb16Wrapper(SwsContext *c, const uint8_t *src[],
640 int srcStride[], int srcSliceY, int srcSliceH,
641 uint8_t *dst[], int dstStride[])
643 uint16_t *dst2013[] = { (uint16_t *)dst[2], (uint16_t *)dst[0], (uint16_t *)dst[1], (uint16_t *)dst[3] };
644 uint16_t *dst1023[] = { (uint16_t *)dst[1], (uint16_t *)dst[0], (uint16_t *)dst[2], (uint16_t *)dst[3] };
645 int stride2013[] = { dstStride[2], dstStride[0], dstStride[1], dstStride[3] };
646 int stride1023[] = { dstStride[1], dstStride[0], dstStride[2], dstStride[3] };
647 const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
648 const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
649 int bpc = dst_format->comp[0].depth;
650 int alpha = src_format->flags & AV_PIX_FMT_FLAG_ALPHA;
654 if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
655 !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
657 if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
658 !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
661 if ((dst_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
662 (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) || bpc < 9) {
663 av_log(c, AV_LOG_ERROR, "unsupported conversion to planar RGB %s -> %s\n",
664 src_format->name, dst_format->name);
669 dst2013[i] += stride2013[i] * srcSliceY / 2;
670 dst1023[i] += stride1023[i] * srcSliceY / 2;
673 switch (c->srcFormat) {
674 case AV_PIX_FMT_RGB48LE:
675 case AV_PIX_FMT_RGB48BE:
676 case AV_PIX_FMT_RGBA64LE:
677 case AV_PIX_FMT_RGBA64BE:
678 packed16togbra16(src[0], srcStride[0],
679 dst2013, stride2013, srcSliceH, alpha, swap,
682 case AV_PIX_FMT_BGR48LE:
683 case AV_PIX_FMT_BGR48BE:
684 case AV_PIX_FMT_BGRA64LE:
685 case AV_PIX_FMT_BGRA64BE:
686 packed16togbra16(src[0], srcStride[0],
687 dst1023, stride1023, srcSliceH, alpha, swap,
691 av_log(c, AV_LOG_ERROR,
692 "unsupported conversion to planar RGB %s -> %s\n",
693 src_format->name, dst_format->name);
699 static void gbr16ptopacked16(const uint16_t *src[], int srcStride[],
700 uint8_t *dst, int dstStride, int srcSliceH,
701 int alpha, int swap, int bpp, int width)
704 int src_alpha = src[3] != NULL;
705 int scale_high = 16 - bpp, scale_low = (bpp - 8) * 2;
706 for (h = 0; h < srcSliceH; h++) {
707 uint16_t *dest = (uint16_t *)(dst + dstStride * h);
712 if (alpha && !src_alpha) {
713 for (x = 0; x < width; x++) {
714 component = av_bswap16(src[0][x]);
715 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
716 component = av_bswap16(src[1][x]);
717 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
718 component = av_bswap16(src[2][x]);
719 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
722 } else if (alpha && src_alpha) {
723 for (x = 0; x < width; x++) {
724 component = av_bswap16(src[0][x]);
725 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
726 component = av_bswap16(src[1][x]);
727 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
728 component = av_bswap16(src[2][x]);
729 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
730 component = av_bswap16(src[3][x]);
731 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
734 for (x = 0; x < width; x++) {
735 component = av_bswap16(src[0][x]);
736 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
737 component = av_bswap16(src[1][x]);
738 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
739 component = av_bswap16(src[2][x]);
740 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
745 if (alpha && !src_alpha) {
746 for (x = 0; x < width; x++) {
747 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
748 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
749 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
752 } else if (alpha && src_alpha) {
753 for (x = 0; x < width; x++) {
754 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
755 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
756 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
757 *dest++ = av_bswap16(src[3][x] << scale_high | src[3][x] >> scale_low);
760 for (x = 0; x < width; x++) {
761 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
762 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
763 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
768 if (alpha && !src_alpha) {
769 for (x = 0; x < width; x++) {
770 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
771 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
772 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
775 } else if (alpha && src_alpha) {
776 for (x = 0; x < width; x++) {
777 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
778 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
779 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
780 *dest++ = av_bswap16(src[3][x]) << scale_high | av_bswap16(src[3][x]) >> scale_low;
783 for (x = 0; x < width; x++) {
784 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
785 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
786 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
791 if (alpha && !src_alpha) {
792 for (x = 0; x < width; x++) {
793 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
794 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
795 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
798 } else if (alpha && src_alpha) {
799 for (x = 0; x < width; x++) {
800 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
801 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
802 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
803 *dest++ = src[3][x] << scale_high | src[3][x] >> scale_low;
806 for (x = 0; x < width; x++) {
807 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
808 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
809 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
813 for (i = 0; i < 3 + src_alpha; i++)
814 src[i] += srcStride[i] >> 1;
818 static int planarRgb16ToRgb16Wrapper(SwsContext *c, const uint8_t *src[],
819 int srcStride[], int srcSliceY, int srcSliceH,
820 uint8_t *dst[], int dstStride[])
822 const uint16_t *src102[] = { (uint16_t *)src[1], (uint16_t *)src[0], (uint16_t *)src[2], (uint16_t *)src[3] };
823 const uint16_t *src201[] = { (uint16_t *)src[2], (uint16_t *)src[0], (uint16_t *)src[1], (uint16_t *)src[3] };
824 int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
825 int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
826 const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
827 const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
828 int bits_per_sample = src_format->comp[0].depth;
830 if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
831 !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
833 if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
834 !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
837 if ((src_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
838 (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) ||
839 bits_per_sample <= 8) {
840 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
841 src_format->name, dst_format->name);
844 switch (c->dstFormat) {
845 case AV_PIX_FMT_BGR48LE:
846 case AV_PIX_FMT_BGR48BE:
847 gbr16ptopacked16(src102, stride102,
848 dst[0] + srcSliceY * dstStride[0], dstStride[0],
849 srcSliceH, 0, swap, bits_per_sample, c->srcW);
851 case AV_PIX_FMT_RGB48LE:
852 case AV_PIX_FMT_RGB48BE:
853 gbr16ptopacked16(src201, stride201,
854 dst[0] + srcSliceY * dstStride[0], dstStride[0],
855 srcSliceH, 0, swap, bits_per_sample, c->srcW);
857 case AV_PIX_FMT_RGBA64LE:
858 case AV_PIX_FMT_RGBA64BE:
859 gbr16ptopacked16(src201, stride201,
860 dst[0] + srcSliceY * dstStride[0], dstStride[0],
861 srcSliceH, 1, swap, bits_per_sample, c->srcW);
863 case AV_PIX_FMT_BGRA64LE:
864 case AV_PIX_FMT_BGRA64BE:
865 gbr16ptopacked16(src102, stride102,
866 dst[0] + srcSliceY * dstStride[0], dstStride[0],
867 srcSliceH, 1, swap, bits_per_sample, c->srcW);
870 av_log(c, AV_LOG_ERROR,
871 "unsupported planar RGB conversion %s -> %s\n",
872 src_format->name, dst_format->name);
878 static void gbr24ptopacked24(const uint8_t *src[], int srcStride[],
879 uint8_t *dst, int dstStride, int srcSliceH,
883 for (h = 0; h < srcSliceH; h++) {
884 uint8_t *dest = dst + dstStride * h;
885 for (x = 0; x < width; x++) {
891 for (i = 0; i < 3; i++)
892 src[i] += srcStride[i];
896 static void gbr24ptopacked32(const uint8_t *src[], int srcStride[],
897 uint8_t *dst, int dstStride, int srcSliceH,
898 int alpha_first, int width)
901 for (h = 0; h < srcSliceH; h++) {
902 uint8_t *dest = dst + dstStride * h;
905 for (x = 0; x < width; x++) {
912 for (x = 0; x < width; x++) {
920 for (i = 0; i < 3; i++)
921 src[i] += srcStride[i];
925 static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[],
926 int srcStride[], int srcSliceY, int srcSliceH,
927 uint8_t *dst[], int dstStride[])
930 const uint8_t *src102[] = { src[1], src[0], src[2] };
931 const uint8_t *src201[] = { src[2], src[0], src[1] };
932 int stride102[] = { srcStride[1], srcStride[0], srcStride[2] };
933 int stride201[] = { srcStride[2], srcStride[0], srcStride[1] };
935 if (c->srcFormat != AV_PIX_FMT_GBRP) {
936 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
937 av_get_pix_fmt_name(c->srcFormat),
938 av_get_pix_fmt_name(c->dstFormat));
942 switch (c->dstFormat) {
943 case AV_PIX_FMT_BGR24:
944 gbr24ptopacked24(src102, stride102,
945 dst[0] + srcSliceY * dstStride[0], dstStride[0],
949 case AV_PIX_FMT_RGB24:
950 gbr24ptopacked24(src201, stride201,
951 dst[0] + srcSliceY * dstStride[0], dstStride[0],
955 case AV_PIX_FMT_ARGB:
957 case AV_PIX_FMT_RGBA:
958 gbr24ptopacked32(src201, stride201,
959 dst[0] + srcSliceY * dstStride[0], dstStride[0],
960 srcSliceH, alpha_first, c->srcW);
963 case AV_PIX_FMT_ABGR:
965 case AV_PIX_FMT_BGRA:
966 gbr24ptopacked32(src102, stride102,
967 dst[0] + srcSliceY * dstStride[0], dstStride[0],
968 srcSliceH, alpha_first, c->srcW);
972 av_log(c, AV_LOG_ERROR,
973 "unsupported planar RGB conversion %s -> %s\n",
974 av_get_pix_fmt_name(c->srcFormat),
975 av_get_pix_fmt_name(c->dstFormat));
981 static int planarRgbToplanarRgbWrapper(SwsContext *c,
982 const uint8_t *src[], int srcStride[],
983 int srcSliceY, int srcSliceH,
984 uint8_t *dst[], int dstStride[])
986 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
987 dst[0], dstStride[0]);
988 copyPlane(src[1], srcStride[1], srcSliceY, srcSliceH, c->srcW,
989 dst[1], dstStride[1]);
990 copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->srcW,
991 dst[2], dstStride[2]);
993 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
998 static void packedtogbr24p(const uint8_t *src, int srcStride,
999 uint8_t *dst[], int dstStride[], int srcSliceH,
1000 int alpha_first, int inc_size, int width)
1012 for (h = 0; h < srcSliceH; h++) {
1013 for (x = 0; x < width; x++) {
1014 dest[0][x] = src[0];
1015 dest[1][x] = src[1];
1016 dest[2][x] = src[2];
1020 src += srcStride - width * inc_size;
1021 dest[0] += dstStride[0];
1022 dest[1] += dstStride[1];
1023 dest[2] += dstStride[2];
1027 static int rgbToPlanarRgbWrapper(SwsContext *c, const uint8_t *src[],
1028 int srcStride[], int srcSliceY, int srcSliceH,
1029 uint8_t *dst[], int dstStride[])
1031 int alpha_first = 0;
1032 int stride102[] = { dstStride[1], dstStride[0], dstStride[2] };
1033 int stride201[] = { dstStride[2], dstStride[0], dstStride[1] };
1034 uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1],
1035 dst[0] + srcSliceY * dstStride[0],
1036 dst[2] + srcSliceY * dstStride[2] };
1037 uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2],
1038 dst[0] + srcSliceY * dstStride[0],
1039 dst[1] + srcSliceY * dstStride[1] };
1041 switch (c->srcFormat) {
1042 case AV_PIX_FMT_RGB24:
1043 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
1044 stride201, srcSliceH, alpha_first, 3, c->srcW);
1046 case AV_PIX_FMT_BGR24:
1047 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
1048 stride102, srcSliceH, alpha_first, 3, c->srcW);
1050 case AV_PIX_FMT_ARGB:
1052 case AV_PIX_FMT_RGBA:
1053 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
1054 stride201, srcSliceH, alpha_first, 4, c->srcW);
1056 case AV_PIX_FMT_ABGR:
1058 case AV_PIX_FMT_BGRA:
1059 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
1060 stride102, srcSliceH, alpha_first, 4, c->srcW);
1063 av_log(c, AV_LOG_ERROR,
1064 "unsupported planar RGB conversion %s -> %s\n",
1065 av_get_pix_fmt_name(c->srcFormat),
1066 av_get_pix_fmt_name(c->dstFormat));
1074 #define BAYER_RENAME(x) bayer_gbrg8_to_##x
1075 #include "bayer_template.c"
1079 #define BAYER_RENAME(x) bayer_gbrg16le_to_##x
1080 #include "bayer_template.c"
1084 #define BAYER_RENAME(x) bayer_gbrg16be_to_##x
1085 #include "bayer_template.c"
1089 #define BAYER_RENAME(x) bayer_grbg8_to_##x
1090 #include "bayer_template.c"
1094 #define BAYER_RENAME(x) bayer_grbg16le_to_##x
1095 #include "bayer_template.c"
1099 #define BAYER_RENAME(x) bayer_grbg16be_to_##x
1100 #include "bayer_template.c"
1104 #define BAYER_RENAME(x) bayer_bggr8_to_##x
1105 #include "bayer_template.c"
1109 #define BAYER_RENAME(x) bayer_bggr16le_to_##x
1110 #include "bayer_template.c"
1114 #define BAYER_RENAME(x) bayer_bggr16be_to_##x
1115 #include "bayer_template.c"
1119 #define BAYER_RENAME(x) bayer_rggb8_to_##x
1120 #include "bayer_template.c"
1124 #define BAYER_RENAME(x) bayer_rggb16le_to_##x
1125 #include "bayer_template.c"
1129 #define BAYER_RENAME(x) bayer_rggb16be_to_##x
1130 #include "bayer_template.c"
1132 static int bayer_to_rgb24_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1133 int srcSliceH, uint8_t* dst[], int dstStride[])
1135 uint8_t *dstPtr= dst[0] + srcSliceY * dstStride[0];
1136 const uint8_t *srcPtr= src[0];
1138 void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1139 void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1141 switch(c->srcFormat) {
1142 #define CASE(pixfmt, prefix) \
1143 case pixfmt: copy = bayer_##prefix##_to_rgb24_copy; \
1144 interpolate = bayer_##prefix##_to_rgb24_interpolate; \
1146 CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1147 CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1148 CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1149 CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1150 CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1151 CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1152 CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1153 CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1154 CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1155 CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1156 CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1157 CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1162 av_assert0(srcSliceH > 1);
1164 copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1165 srcPtr += 2 * srcStride[0];
1166 dstPtr += 2 * dstStride[0];
1168 for (i = 2; i < srcSliceH - 2; i += 2) {
1169 interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1170 srcPtr += 2 * srcStride[0];
1171 dstPtr += 2 * dstStride[0];
1174 if (i + 1 == srcSliceH) {
1175 copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW);
1176 } else if (i < srcSliceH)
1177 copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1181 static int bayer_to_yv12_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1182 int srcSliceH, uint8_t* dst[], int dstStride[])
1184 const uint8_t *srcPtr= src[0];
1185 uint8_t *dstY= dst[0] + srcSliceY * dstStride[0];
1186 uint8_t *dstU= dst[1] + srcSliceY * dstStride[1] / 2;
1187 uint8_t *dstV= dst[2] + srcSliceY * dstStride[2] / 2;
1189 void (*copy) (const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, int32_t *rgb2yuv);
1190 void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, int32_t *rgb2yuv);
1192 switch(c->srcFormat) {
1193 #define CASE(pixfmt, prefix) \
1194 case pixfmt: copy = bayer_##prefix##_to_yv12_copy; \
1195 interpolate = bayer_##prefix##_to_yv12_interpolate; \
1197 CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1198 CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1199 CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1200 CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1201 CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1202 CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1203 CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1204 CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1205 CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1206 CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1207 CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1208 CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1213 av_assert0(srcSliceH > 1);
1215 copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1216 srcPtr += 2 * srcStride[0];
1217 dstY += 2 * dstStride[0];
1218 dstU += dstStride[1];
1219 dstV += dstStride[1];
1221 for (i = 2; i < srcSliceH - 2; i += 2) {
1222 interpolate(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1223 srcPtr += 2 * srcStride[0];
1224 dstY += 2 * dstStride[0];
1225 dstU += dstStride[1];
1226 dstV += dstStride[1];
1229 if (i + 1 == srcSliceH) {
1230 copy(srcPtr, -srcStride[0], dstY, dstU, dstV, -dstStride[0], c->srcW, c->input_rgb2yuv_table);
1231 } else if (i < srcSliceH)
1232 copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1236 #define isRGBA32(x) ( \
1237 (x) == AV_PIX_FMT_ARGB \
1238 || (x) == AV_PIX_FMT_RGBA \
1239 || (x) == AV_PIX_FMT_BGRA \
1240 || (x) == AV_PIX_FMT_ABGR \
1243 #define isRGBA64(x) ( \
1244 (x) == AV_PIX_FMT_RGBA64LE \
1245 || (x) == AV_PIX_FMT_RGBA64BE \
1246 || (x) == AV_PIX_FMT_BGRA64LE \
1247 || (x) == AV_PIX_FMT_BGRA64BE \
1250 #define isRGB48(x) ( \
1251 (x) == AV_PIX_FMT_RGB48LE \
1252 || (x) == AV_PIX_FMT_RGB48BE \
1253 || (x) == AV_PIX_FMT_BGR48LE \
1254 || (x) == AV_PIX_FMT_BGR48BE \
1257 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1258 typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int);
1259 static rgbConvFn findRgbConvFn(SwsContext *c)
1261 const enum AVPixelFormat srcFormat = c->srcFormat;
1262 const enum AVPixelFormat dstFormat = c->dstFormat;
1263 const int srcId = c->srcFormatBpp;
1264 const int dstId = c->dstFormatBpp;
1265 rgbConvFn conv = NULL;
1267 #define IS_NOT_NE(bpp, desc) \
1268 (((bpp + 7) >> 3) == 2 && \
1269 (!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN))
1271 #define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst)
1273 if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
1274 if ( CONV_IS(ABGR, RGBA)
1275 || CONV_IS(ARGB, BGRA)
1276 || CONV_IS(BGRA, ARGB)
1277 || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
1278 else if (CONV_IS(ABGR, ARGB)
1279 || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
1280 else if (CONV_IS(ABGR, BGRA)
1281 || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
1282 else if (CONV_IS(BGRA, RGBA)
1283 || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
1284 else if (CONV_IS(BGRA, ABGR)
1285 || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
1286 } else if (isRGB48(srcFormat) && isRGB48(dstFormat)) {
1287 if (CONV_IS(RGB48LE, BGR48LE)
1288 || CONV_IS(BGR48LE, RGB48LE)
1289 || CONV_IS(RGB48BE, BGR48BE)
1290 || CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap;
1291 else if (CONV_IS(RGB48LE, BGR48BE)
1292 || CONV_IS(BGR48LE, RGB48BE)
1293 || CONV_IS(RGB48BE, BGR48LE)
1294 || CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap;
1295 } else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) {
1296 if (CONV_IS(RGBA64LE, BGR48LE)
1297 || CONV_IS(BGRA64LE, RGB48LE)
1298 || CONV_IS(RGBA64BE, BGR48BE)
1299 || CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap;
1300 else if (CONV_IS(RGBA64LE, BGR48BE)
1301 || CONV_IS(BGRA64LE, RGB48BE)
1302 || CONV_IS(RGBA64BE, BGR48LE)
1303 || CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap;
1304 else if (CONV_IS(RGBA64LE, RGB48LE)
1305 || CONV_IS(BGRA64LE, BGR48LE)
1306 || CONV_IS(RGBA64BE, RGB48BE)
1307 || CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap;
1308 else if (CONV_IS(RGBA64LE, RGB48BE)
1309 || CONV_IS(BGRA64LE, BGR48BE)
1310 || CONV_IS(RGBA64BE, RGB48LE)
1311 || CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap;
1314 if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
1315 (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
1316 switch (srcId | (dstId << 16)) {
1317 case 0x000F000C: conv = rgb12to15; break;
1318 case 0x000F0010: conv = rgb16to15; break;
1319 case 0x000F0018: conv = rgb24to15; break;
1320 case 0x000F0020: conv = rgb32to15; break;
1321 case 0x0010000F: conv = rgb15to16; break;
1322 case 0x00100018: conv = rgb24to16; break;
1323 case 0x00100020: conv = rgb32to16; break;
1324 case 0x0018000F: conv = rgb15to24; break;
1325 case 0x00180010: conv = rgb16to24; break;
1326 case 0x00180020: conv = rgb32to24; break;
1327 case 0x0020000F: conv = rgb15to32; break;
1328 case 0x00200010: conv = rgb16to32; break;
1329 case 0x00200018: conv = rgb24to32; break;
1331 } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) ||
1332 (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
1333 switch (srcId | (dstId << 16)) {
1334 case 0x000C000C: conv = rgb12tobgr12; break;
1335 case 0x000F000F: conv = rgb15tobgr15; break;
1336 case 0x000F0010: conv = rgb16tobgr15; break;
1337 case 0x000F0018: conv = rgb24tobgr15; break;
1338 case 0x000F0020: conv = rgb32tobgr15; break;
1339 case 0x0010000F: conv = rgb15tobgr16; break;
1340 case 0x00100010: conv = rgb16tobgr16; break;
1341 case 0x00100018: conv = rgb24tobgr16; break;
1342 case 0x00100020: conv = rgb32tobgr16; break;
1343 case 0x0018000F: conv = rgb15tobgr24; break;
1344 case 0x00180010: conv = rgb16tobgr24; break;
1345 case 0x00180018: conv = rgb24tobgr24; break;
1346 case 0x00180020: conv = rgb32tobgr24; break;
1347 case 0x0020000F: conv = rgb15tobgr32; break;
1348 case 0x00200010: conv = rgb16tobgr32; break;
1349 case 0x00200018: conv = rgb24tobgr32; break;
1353 if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0)
1356 // Maintain symmetry between endianness
1357 if (c->flags & SWS_BITEXACT)
1358 if ((dstFormat == AV_PIX_FMT_RGB32 || dstFormat == AV_PIX_FMT_BGR32 ) && !isRGBA32(srcFormat) && ALT32_CORR>0)
1364 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1365 static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
1366 int srcSliceY, int srcSliceH, uint8_t *dst[],
1370 const enum AVPixelFormat srcFormat = c->srcFormat;
1371 const enum AVPixelFormat dstFormat = c->dstFormat;
1372 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1373 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1374 const int srcBpp = (c->srcFormatBpp + 7) >> 3;
1375 const int dstBpp = (c->dstFormatBpp + 7) >> 3;
1376 rgbConvFn conv = findRgbConvFn(c);
1379 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1380 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1382 const uint8_t *srcPtr = src[0];
1383 uint8_t *dstPtr = dst[0];
1384 int src_bswap = IS_NOT_NE(c->srcFormatBpp, desc_src);
1385 int dst_bswap = IS_NOT_NE(c->dstFormatBpp, desc_dst);
1387 if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) &&
1388 !isRGBA32(dstFormat))
1389 srcPtr += ALT32_CORR;
1391 if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) &&
1392 !isRGBA32(srcFormat)) {
1394 av_assert0(ALT32_CORR == 1);
1395 for (i = 0; i < srcSliceH; i++)
1396 dstPtr[dstStride[0] * (srcSliceY + i)] = 255;
1397 dstPtr += ALT32_CORR;
1400 if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 &&
1401 !(srcStride[0] % srcBpp) && !dst_bswap && !src_bswap)
1402 conv(srcPtr, dstPtr + dstStride[0] * srcSliceY,
1403 (srcSliceH - 1) * srcStride[0] + c->srcW * srcBpp);
1406 dstPtr += dstStride[0] * srcSliceY;
1408 for (i = 0; i < srcSliceH; i++) {
1410 for(j=0; j<c->srcW; j++)
1411 ((uint16_t*)c->formatConvBuffer)[j] = av_bswap16(((uint16_t*)srcPtr)[j]);
1412 conv(c->formatConvBuffer, dstPtr, c->srcW * srcBpp);
1414 conv(srcPtr, dstPtr, c->srcW * srcBpp);
1416 for(j=0; j<c->srcW; j++)
1417 ((uint16_t*)dstPtr)[j] = av_bswap16(((uint16_t*)dstPtr)[j]);
1418 srcPtr += srcStride[0];
1419 dstPtr += dstStride[0];
1426 static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1427 int srcStride[], int srcSliceY, int srcSliceH,
1428 uint8_t *dst[], int dstStride[])
1432 dst[0] + srcSliceY * dstStride[0],
1433 dst[1] + (srcSliceY >> 1) * dstStride[1],
1434 dst[2] + (srcSliceY >> 1) * dstStride[2],
1436 dstStride[0], dstStride[1], srcStride[0],
1437 c->input_rgb2yuv_table);
1439 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1443 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1444 int srcStride[], int srcSliceY, int srcSliceH,
1445 uint8_t *dst[], int dstStride[])
1447 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1448 dst[0], dstStride[0]);
1450 planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW,
1451 srcSliceH >> 2, srcStride[1], dstStride[1]);
1452 planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW,
1453 srcSliceH >> 2, srcStride[2], dstStride[2]);
1455 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1459 /* unscaled copy like stuff (assumes nearly identical formats) */
1460 static int packedCopyWrapper(SwsContext *c, const uint8_t *src[],
1461 int srcStride[], int srcSliceY, int srcSliceH,
1462 uint8_t *dst[], int dstStride[])
1464 if (dstStride[0] == srcStride[0] && srcStride[0] > 0)
1465 memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]);
1468 const uint8_t *srcPtr = src[0];
1469 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
1472 /* universal length finder */
1473 while (length + c->srcW <= FFABS(dstStride[0]) &&
1474 length + c->srcW <= FFABS(srcStride[0]))
1476 av_assert1(length != 0);
1478 for (i = 0; i < srcSliceH; i++) {
1479 memcpy(dstPtr, srcPtr, length);
1480 srcPtr += srcStride[0];
1481 dstPtr += dstStride[0];
1487 #define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\
1488 uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\
1489 int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\
1490 for (i = 0; i < height; i++) {\
1491 const uint8_t *dither= dithers[src_depth-9][i&7];\
1492 for (j = 0; j < length-7; j+=8){\
1493 dst[j+0] = dbswap((bswap(src[j+0]) + dither[0])*scale>>shift);\
1494 dst[j+1] = dbswap((bswap(src[j+1]) + dither[1])*scale>>shift);\
1495 dst[j+2] = dbswap((bswap(src[j+2]) + dither[2])*scale>>shift);\
1496 dst[j+3] = dbswap((bswap(src[j+3]) + dither[3])*scale>>shift);\
1497 dst[j+4] = dbswap((bswap(src[j+4]) + dither[4])*scale>>shift);\
1498 dst[j+5] = dbswap((bswap(src[j+5]) + dither[5])*scale>>shift);\
1499 dst[j+6] = dbswap((bswap(src[j+6]) + dither[6])*scale>>shift);\
1500 dst[j+7] = dbswap((bswap(src[j+7]) + dither[7])*scale>>shift);\
1502 for (; j < length; j++)\
1503 dst[j] = dbswap((bswap(src[j]) + dither[j&7])*scale>>shift);\
1508 static int planarCopyWrapper(SwsContext *c, const uint8_t *src[],
1509 int srcStride[], int srcSliceY, int srcSliceH,
1510 uint8_t *dst[], int dstStride[])
1512 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1513 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1515 for (plane = 0; plane < 4; plane++) {
1516 int length = (plane == 0 || plane == 3) ? c->srcW : AV_CEIL_RSHIFT(c->srcW, c->chrDstHSubSample);
1517 int y = (plane == 0 || plane == 3) ? srcSliceY: AV_CEIL_RSHIFT(srcSliceY, c->chrDstVSubSample);
1518 int height = (plane == 0 || plane == 3) ? srcSliceH: AV_CEIL_RSHIFT(srcSliceH, c->chrDstVSubSample);
1519 const uint8_t *srcPtr = src[plane];
1520 uint8_t *dstPtr = dst[plane] + dstStride[plane] * y;
1521 int shiftonly = plane == 1 || plane == 2 || (!c->srcRange && plane == 0);
1525 // ignore palette for GRAY8
1526 if (plane == 1 && !dst[2]) continue;
1527 if (!src[plane] || (plane == 1 && !src[2])) {
1528 if (is16BPS(c->dstFormat) || isNBPS(c->dstFormat)) {
1529 fillPlane16(dst[plane], dstStride[plane], length, height, y,
1530 plane == 3, desc_dst->comp[plane].depth,
1531 isBE(c->dstFormat));
1533 fillPlane(dst[plane], dstStride[plane], length, height, y,
1534 (plane == 3) ? 255 : 128);
1537 if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
1538 || (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
1540 const int src_depth = desc_src->comp[plane].depth;
1541 const int dst_depth = desc_dst->comp[plane].depth;
1542 const uint16_t *srcPtr2 = (const uint16_t *) srcPtr;
1543 uint16_t *dstPtr2 = (uint16_t*)dstPtr;
1545 if (dst_depth == 8) {
1546 if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1547 DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , )
1549 DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, )
1551 } else if (src_depth == 8) {
1552 for (i = 0; i < height; i++) {
1555 for (j = 0; j < length; j++)\
1556 w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
1558 for (j = 0; j < length; j++)\
1559 w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
1560 (srcPtr[j]>>(2*8-dst_depth)));\
1562 if(isBE(c->dstFormat)){
1567 dstPtr2 += dstStride[plane]/2;
1568 srcPtr += srcStride[plane];
1570 } else if (src_depth <= dst_depth) {
1571 for (i = 0; i < height; i++) {
1573 if(isBE(c->srcFormat) == HAVE_BIGENDIAN &&
1574 isBE(c->dstFormat) == HAVE_BIGENDIAN &&
1576 unsigned shift = dst_depth - src_depth;
1578 #define FAST_COPY_UP(shift) \
1579 for (; j < length - 3; j += 4) { \
1580 uint64_t v = AV_RN64A(srcPtr2 + j); \
1581 AV_WN64A(dstPtr2 + j, v << shift); \
1584 #define FAST_COPY_UP(shift) \
1585 for (; j < length - 1; j += 2) { \
1586 uint32_t v = AV_RN32A(srcPtr2 + j); \
1587 AV_WN32A(dstPtr2 + j, v << shift); \
1592 case 6: FAST_COPY_UP(6); break;
1593 case 7: FAST_COPY_UP(7); break;
1596 #define COPY_UP(r,w) \
1598 for (; j < length; j++){ \
1599 unsigned int v= r(&srcPtr2[j]);\
1600 w(&dstPtr2[j], v<<(dst_depth-src_depth));\
1603 for (; j < length; j++){ \
1604 unsigned int v= r(&srcPtr2[j]);\
1605 w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
1606 (v>>(2*src_depth-dst_depth)));\
1609 if(isBE(c->srcFormat)){
1610 if(isBE(c->dstFormat)){
1611 COPY_UP(AV_RB16, AV_WB16)
1613 COPY_UP(AV_RB16, AV_WL16)
1616 if(isBE(c->dstFormat)){
1617 COPY_UP(AV_RL16, AV_WB16)
1619 COPY_UP(AV_RL16, AV_WL16)
1622 dstPtr2 += dstStride[plane]/2;
1623 srcPtr2 += srcStride[plane]/2;
1626 if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1627 if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1628 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , )
1630 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16)
1633 if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1634 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, )
1636 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16)
1640 } else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) &&
1641 isBE(c->srcFormat) != isBE(c->dstFormat)) {
1643 for (i = 0; i < height; i++) {
1644 for (j = 0; j < length; j++)
1645 ((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]);
1646 srcPtr += srcStride[plane];
1647 dstPtr += dstStride[plane];
1649 } else if (dstStride[plane] == srcStride[plane] &&
1650 srcStride[plane] > 0 && srcStride[plane] == length) {
1651 memcpy(dst[plane] + dstStride[plane] * y, src[plane],
1652 height * dstStride[plane]);
1654 if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1656 else if (desc_src->comp[0].depth == 1)
1657 length >>= 3; // monowhite/black
1658 for (i = 0; i < height; i++) {
1659 memcpy(dstPtr, srcPtr, length);
1660 srcPtr += srcStride[plane];
1661 dstPtr += dstStride[plane];
1670 #define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \
1671 ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \
1672 (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE))
1675 void ff_get_unscaled_swscale(SwsContext *c)
1677 const enum AVPixelFormat srcFormat = c->srcFormat;
1678 const enum AVPixelFormat dstFormat = c->dstFormat;
1679 const int flags = c->flags;
1680 const int dstH = c->dstH;
1683 needsDither = isAnyRGB(dstFormat) &&
1684 c->dstFormatBpp < 24 &&
1685 (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1688 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
1689 (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) {
1690 c->swscale = planarToNv12Wrapper;
1693 if (dstFormat == AV_PIX_FMT_YUV420P &&
1694 (srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) {
1695 c->swscale = nv12ToPlanarWrapper;
1698 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P ||
1699 srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) &&
1700 !(flags & SWS_ACCURATE_RND) && (c->dither == SWS_DITHER_BAYER || c->dither == SWS_DITHER_AUTO) && !(dstH & 1)) {
1701 c->swscale = ff_yuv2rgb_get_func_ptr(c);
1703 /* yuv420p10_to_p010 */
1704 if ((srcFormat == AV_PIX_FMT_YUV420P10 || srcFormat == AV_PIX_FMT_YUVA420P10) &&
1705 dstFormat == AV_PIX_FMT_P010) {
1706 c->swscale = planarToP010Wrapper;
1708 /* yuv420p_to_p010le */
1709 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
1710 dstFormat == AV_PIX_FMT_P010LE) {
1711 c->swscale = planar8ToP01xleWrapper;
1714 if (srcFormat == AV_PIX_FMT_YUV410P && !(dstH & 3) &&
1715 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1716 !(flags & SWS_BITEXACT)) {
1717 c->swscale = yvu9ToYv12Wrapper;
1721 if (srcFormat == AV_PIX_FMT_BGR24 &&
1722 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1723 !(flags & SWS_ACCURATE_RND))
1724 c->swscale = bgr24ToYv12Wrapper;
1726 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
1727 if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
1728 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
1729 c->swscale = rgbToRgbWrapper;
1731 /* RGB to planar RGB */
1732 if ((srcFormat == AV_PIX_FMT_GBRP && dstFormat == AV_PIX_FMT_GBRAP) ||
1733 (srcFormat == AV_PIX_FMT_GBRAP && dstFormat == AV_PIX_FMT_GBRP))
1734 c->swscale = planarRgbToplanarRgbWrapper;
1736 #define isByteRGB(f) ( \
1737 f == AV_PIX_FMT_RGB32 || \
1738 f == AV_PIX_FMT_RGB32_1 || \
1739 f == AV_PIX_FMT_RGB24 || \
1740 f == AV_PIX_FMT_BGR32 || \
1741 f == AV_PIX_FMT_BGR32_1 || \
1742 f == AV_PIX_FMT_BGR24)
1744 if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
1745 c->swscale = planarRgbToRgbWrapper;
1747 if ((srcFormat == AV_PIX_FMT_RGB48LE || srcFormat == AV_PIX_FMT_RGB48BE ||
1748 srcFormat == AV_PIX_FMT_BGR48LE || srcFormat == AV_PIX_FMT_BGR48BE ||
1749 srcFormat == AV_PIX_FMT_RGBA64LE || srcFormat == AV_PIX_FMT_RGBA64BE ||
1750 srcFormat == AV_PIX_FMT_BGRA64LE || srcFormat == AV_PIX_FMT_BGRA64BE) &&
1751 (dstFormat == AV_PIX_FMT_GBRP9LE || dstFormat == AV_PIX_FMT_GBRP9BE ||
1752 dstFormat == AV_PIX_FMT_GBRP10LE || dstFormat == AV_PIX_FMT_GBRP10BE ||
1753 dstFormat == AV_PIX_FMT_GBRP12LE || dstFormat == AV_PIX_FMT_GBRP12BE ||
1754 dstFormat == AV_PIX_FMT_GBRP14LE || dstFormat == AV_PIX_FMT_GBRP14BE ||
1755 dstFormat == AV_PIX_FMT_GBRP16LE || dstFormat == AV_PIX_FMT_GBRP16BE ||
1756 dstFormat == AV_PIX_FMT_GBRAP12LE || dstFormat == AV_PIX_FMT_GBRAP12BE ||
1757 dstFormat == AV_PIX_FMT_GBRAP16LE || dstFormat == AV_PIX_FMT_GBRAP16BE ))
1758 c->swscale = Rgb16ToPlanarRgb16Wrapper;
1760 if ((srcFormat == AV_PIX_FMT_GBRP9LE || srcFormat == AV_PIX_FMT_GBRP9BE ||
1761 srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
1762 srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||
1763 srcFormat == AV_PIX_FMT_GBRP12LE || srcFormat == AV_PIX_FMT_GBRP12BE ||
1764 srcFormat == AV_PIX_FMT_GBRP14LE || srcFormat == AV_PIX_FMT_GBRP14BE ||
1765 srcFormat == AV_PIX_FMT_GBRAP12LE || srcFormat == AV_PIX_FMT_GBRAP12BE ||
1766 srcFormat == AV_PIX_FMT_GBRAP16LE || srcFormat == AV_PIX_FMT_GBRAP16BE) &&
1767 (dstFormat == AV_PIX_FMT_RGB48LE || dstFormat == AV_PIX_FMT_RGB48BE ||
1768 dstFormat == AV_PIX_FMT_BGR48LE || dstFormat == AV_PIX_FMT_BGR48BE ||
1769 dstFormat == AV_PIX_FMT_RGBA64LE || dstFormat == AV_PIX_FMT_RGBA64BE ||
1770 dstFormat == AV_PIX_FMT_BGRA64LE || dstFormat == AV_PIX_FMT_BGRA64BE))
1771 c->swscale = planarRgb16ToRgb16Wrapper;
1773 if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth == 8 &&
1774 isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP)
1775 c->swscale = rgbToPlanarRgbWrapper;
1777 if (isBayer(srcFormat)) {
1778 if (dstFormat == AV_PIX_FMT_RGB24)
1779 c->swscale = bayer_to_rgb24_wrapper;
1780 else if (dstFormat == AV_PIX_FMT_YUV420P)
1781 c->swscale = bayer_to_yv12_wrapper;
1782 else if (!isBayer(dstFormat)) {
1783 av_log(c, AV_LOG_ERROR, "unsupported bayer conversion\n");
1788 /* bswap 16 bits per pixel/component packed formats */
1789 if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_BGGR16) ||
1790 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_RGGB16) ||
1791 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GBRG16) ||
1792 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GRBG16) ||
1793 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) ||
1794 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48) ||
1795 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1796 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) ||
1797 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) ||
1798 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1799 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY10) ||
1800 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY12) ||
1801 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) ||
1802 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YA16) ||
1803 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_AYUV64) ||
1804 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP9) ||
1805 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP10) ||
1806 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP12) ||
1807 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP14) ||
1808 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP16) ||
1809 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP12) ||
1810 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP16) ||
1811 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) ||
1812 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48) ||
1813 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1814 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) ||
1815 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565) ||
1816 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1817 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12) ||
1818 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P9) ||
1819 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P10) ||
1820 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P12) ||
1821 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P14) ||
1822 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P16) ||
1823 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P9) ||
1824 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P10) ||
1825 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P12) ||
1826 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P14) ||
1827 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P16) ||
1828 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P10) ||
1829 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P12) ||
1830 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P9) ||
1831 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P10) ||
1832 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P12) ||
1833 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P14) ||
1834 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P16))
1835 c->swscale = packed_16bpc_bswap;
1837 if (usePal(srcFormat) && isByteRGB(dstFormat))
1838 c->swscale = palToRgbWrapper;
1840 if (srcFormat == AV_PIX_FMT_YUV422P) {
1841 if (dstFormat == AV_PIX_FMT_YUYV422)
1842 c->swscale = yuv422pToYuy2Wrapper;
1843 else if (dstFormat == AV_PIX_FMT_UYVY422)
1844 c->swscale = yuv422pToUyvyWrapper;
1847 /* LQ converters if -sws 0 or -sws 4*/
1848 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
1850 if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) {
1851 if (dstFormat == AV_PIX_FMT_YUYV422)
1852 c->swscale = planarToYuy2Wrapper;
1853 else if (dstFormat == AV_PIX_FMT_UYVY422)
1854 c->swscale = planarToUyvyWrapper;
1857 if (srcFormat == AV_PIX_FMT_YUYV422 &&
1858 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1859 c->swscale = yuyvToYuv420Wrapper;
1860 if (srcFormat == AV_PIX_FMT_UYVY422 &&
1861 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1862 c->swscale = uyvyToYuv420Wrapper;
1863 if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P)
1864 c->swscale = yuyvToYuv422Wrapper;
1865 if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P)
1866 c->swscale = uyvyToYuv422Wrapper;
1868 #define isPlanarGray(x) (isGray(x) && (x) != AV_PIX_FMT_YA8 && (x) != AV_PIX_FMT_YA16LE && (x) != AV_PIX_FMT_YA16BE)
1870 if ( srcFormat == dstFormat ||
1871 (srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) ||
1872 (srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) ||
1873 (isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
1874 (isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) ||
1875 (isPlanarGray(dstFormat) && isPlanarGray(srcFormat)) ||
1876 (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) &&
1877 c->chrDstHSubSample == c->chrSrcHSubSample &&
1878 c->chrDstVSubSample == c->chrSrcVSubSample &&
1879 dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
1880 dstFormat != AV_PIX_FMT_P010LE && dstFormat != AV_PIX_FMT_P010BE &&
1881 dstFormat != AV_PIX_FMT_P016LE && dstFormat != AV_PIX_FMT_P016BE &&
1882 srcFormat != AV_PIX_FMT_NV12 && srcFormat != AV_PIX_FMT_NV21 &&
1883 srcFormat != AV_PIX_FMT_P010LE && srcFormat != AV_PIX_FMT_P010BE &&
1884 srcFormat != AV_PIX_FMT_P016LE && srcFormat != AV_PIX_FMT_P016BE))
1886 if (isPacked(c->srcFormat))
1887 c->swscale = packedCopyWrapper;
1888 else /* Planar YUV or gray */
1889 c->swscale = planarCopyWrapper;
1893 ff_get_unscaled_swscale_ppc(c);
1895 ff_get_unscaled_swscale_arm(c);
1897 ff_get_unscaled_swscale_aarch64(c);
1900 /* Convert the palette to the same packed 32-bit format as the palette */
1901 void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst,
1902 int num_pixels, const uint8_t *palette)
1906 for (i = 0; i < num_pixels; i++)
1907 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
1910 /* Palette format: ABCD -> dst format: ABC */
1911 void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst,
1912 int num_pixels, const uint8_t *palette)
1916 for (i = 0; i < num_pixels; i++) {
1918 dst[0] = palette[src[i] * 4 + 0];
1919 dst[1] = palette[src[i] * 4 + 1];
1920 dst[2] = palette[src[i] * 4 + 2];