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"
37 DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
39 { 0, 1, 0, 1, 0, 1, 0, 1,},
40 { 1, 0, 1, 0, 1, 0, 1, 0,},
41 { 0, 1, 0, 1, 0, 1, 0, 1,},
42 { 1, 0, 1, 0, 1, 0, 1, 0,},
43 { 0, 1, 0, 1, 0, 1, 0, 1,},
44 { 1, 0, 1, 0, 1, 0, 1, 0,},
45 { 0, 1, 0, 1, 0, 1, 0, 1,},
46 { 1, 0, 1, 0, 1, 0, 1, 0,},
48 { 1, 2, 1, 2, 1, 2, 1, 2,},
49 { 3, 0, 3, 0, 3, 0, 3, 0,},
50 { 1, 2, 1, 2, 1, 2, 1, 2,},
51 { 3, 0, 3, 0, 3, 0, 3, 0,},
52 { 1, 2, 1, 2, 1, 2, 1, 2,},
53 { 3, 0, 3, 0, 3, 0, 3, 0,},
54 { 1, 2, 1, 2, 1, 2, 1, 2,},
55 { 3, 0, 3, 0, 3, 0, 3, 0,},
57 { 2, 4, 3, 5, 2, 4, 3, 5,},
58 { 6, 0, 7, 1, 6, 0, 7, 1,},
59 { 3, 5, 2, 4, 3, 5, 2, 4,},
60 { 7, 1, 6, 0, 7, 1, 6, 0,},
61 { 2, 4, 3, 5, 2, 4, 3, 5,},
62 { 6, 0, 7, 1, 6, 0, 7, 1,},
63 { 3, 5, 2, 4, 3, 5, 2, 4,},
64 { 7, 1, 6, 0, 7, 1, 6, 0,},
66 { 4, 8, 7, 11, 4, 8, 7, 11,},
67 { 12, 0, 15, 3, 12, 0, 15, 3,},
68 { 6, 10, 5, 9, 6, 10, 5, 9,},
69 { 14, 2, 13, 1, 14, 2, 13, 1,},
70 { 4, 8, 7, 11, 4, 8, 7, 11,},
71 { 12, 0, 15, 3, 12, 0, 15, 3,},
72 { 6, 10, 5, 9, 6, 10, 5, 9,},
73 { 14, 2, 13, 1, 14, 2, 13, 1,},
75 { 9, 17, 15, 23, 8, 16, 14, 22,},
76 { 25, 1, 31, 7, 24, 0, 30, 6,},
77 { 13, 21, 11, 19, 12, 20, 10, 18,},
78 { 29, 5, 27, 3, 28, 4, 26, 2,},
79 { 8, 16, 14, 22, 9, 17, 15, 23,},
80 { 24, 0, 30, 6, 25, 1, 31, 7,},
81 { 12, 20, 10, 18, 13, 21, 11, 19,},
82 { 28, 4, 26, 2, 29, 5, 27, 3,},
84 { 18, 34, 30, 46, 17, 33, 29, 45,},
85 { 50, 2, 62, 14, 49, 1, 61, 13,},
86 { 26, 42, 22, 38, 25, 41, 21, 37,},
87 { 58, 10, 54, 6, 57, 9, 53, 5,},
88 { 16, 32, 28, 44, 19, 35, 31, 47,},
89 { 48, 0, 60, 12, 51, 3, 63, 15,},
90 { 24, 40, 20, 36, 27, 43, 23, 39,},
91 { 56, 8, 52, 4, 59, 11, 55, 7,},
93 { 18, 34, 30, 46, 17, 33, 29, 45,},
94 { 50, 2, 62, 14, 49, 1, 61, 13,},
95 { 26, 42, 22, 38, 25, 41, 21, 37,},
96 { 58, 10, 54, 6, 57, 9, 53, 5,},
97 { 16, 32, 28, 44, 19, 35, 31, 47,},
98 { 48, 0, 60, 12, 51, 3, 63, 15,},
99 { 24, 40, 20, 36, 27, 43, 23, 39,},
100 { 56, 8, 52, 4, 59, 11, 55, 7,},
102 { 36, 68, 60, 92, 34, 66, 58, 90,},
103 { 100, 4,124, 28, 98, 2,122, 26,},
104 { 52, 84, 44, 76, 50, 82, 42, 74,},
105 { 116, 20,108, 12,114, 18,106, 10,},
106 { 32, 64, 56, 88, 38, 70, 62, 94,},
107 { 96, 0,120, 24,102, 6,126, 30,},
108 { 48, 80, 40, 72, 54, 86, 46, 78,},
109 { 112, 16,104, 8,118, 22,110, 14,},
112 static const uint16_t dither_scale[15][16]={
113 { 2, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,},
114 { 2, 3, 7, 7, 13, 13, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,},
115 { 3, 3, 4, 15, 15, 29, 57, 57, 57, 113, 113, 113, 113, 113, 113, 113,},
116 { 3, 4, 4, 5, 31, 31, 61, 121, 241, 241, 241, 241, 481, 481, 481, 481,},
117 { 3, 4, 5, 5, 6, 63, 63, 125, 249, 497, 993, 993, 993, 993, 993, 1985,},
118 { 3, 5, 6, 6, 6, 7, 127, 127, 253, 505, 1009, 2017, 4033, 4033, 4033, 4033,},
119 { 3, 5, 6, 7, 7, 7, 8, 255, 255, 509, 1017, 2033, 4065, 8129,16257,16257,},
120 { 3, 5, 6, 8, 8, 8, 8, 9, 511, 511, 1021, 2041, 4081, 8161,16321,32641,},
121 { 3, 5, 7, 8, 9, 9, 9, 9, 10, 1023, 1023, 2045, 4089, 8177,16353,32705,},
122 { 3, 5, 7, 8, 10, 10, 10, 10, 10, 11, 2047, 2047, 4093, 8185,16369,32737,},
123 { 3, 5, 7, 8, 10, 11, 11, 11, 11, 11, 12, 4095, 4095, 8189,16377,32753,},
124 { 3, 5, 7, 9, 10, 12, 12, 12, 12, 12, 12, 13, 8191, 8191,16381,32761,},
125 { 3, 5, 7, 9, 10, 12, 13, 13, 13, 13, 13, 13, 14,16383,16383,32765,},
126 { 3, 5, 7, 9, 10, 12, 14, 14, 14, 14, 14, 14, 14, 15,32767,32767,},
127 { 3, 5, 7, 9, 11, 12, 14, 15, 15, 15, 15, 15, 15, 15, 16,65535,},
131 static void fillPlane(uint8_t *plane, int stride, int width, int height, int y,
135 uint8_t *ptr = plane + stride * y;
136 for (i = 0; i < height; i++) {
137 memset(ptr, val, width);
142 static void copyPlane(const uint8_t *src, int srcStride,
143 int srcSliceY, int srcSliceH, int width,
144 uint8_t *dst, int dstStride)
146 dst += dstStride * srcSliceY;
147 if (dstStride == srcStride && srcStride > 0) {
148 memcpy(dst, src, srcSliceH * dstStride);
151 for (i = 0; i < srcSliceH; i++) {
152 memcpy(dst, src, width);
159 static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[],
160 int srcStride[], int srcSliceY,
161 int srcSliceH, uint8_t *dstParam[],
164 uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2;
166 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
167 dstParam[0], dstStride[0]);
169 if (c->dstFormat == AV_PIX_FMT_NV12)
170 interleaveBytes(src[1], src[2], dst, c->srcW / 2, srcSliceH / 2,
171 srcStride[1], srcStride[2], dstStride[1]);
173 interleaveBytes(src[2], src[1], dst, c->srcW / 2, srcSliceH / 2,
174 srcStride[2], srcStride[1], dstStride[1]);
179 static int nv12ToPlanarWrapper(SwsContext *c, const uint8_t *src[],
180 int srcStride[], int srcSliceY,
181 int srcSliceH, uint8_t *dstParam[],
184 uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
185 uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
187 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
188 dstParam[0], dstStride[0]);
190 if (c->srcFormat == AV_PIX_FMT_NV12)
191 deinterleaveBytes(src[1], dst1, dst2,c->srcW / 2, srcSliceH / 2,
192 srcStride[1], dstStride[1], dstStride[2]);
194 deinterleaveBytes(src[1], dst2, dst1, c->srcW / 2, srcSliceH / 2,
195 srcStride[1], dstStride[2], dstStride[1]);
200 static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
201 int srcStride[], int srcSliceY, int srcSliceH,
202 uint8_t *dstParam[], int dstStride[])
204 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
206 yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
207 srcStride[1], dstStride[0]);
212 static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[],
213 int srcStride[], int srcSliceY, int srcSliceH,
214 uint8_t *dstParam[], int dstStride[])
216 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
218 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
219 srcStride[1], dstStride[0]);
224 static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
225 int srcStride[], int srcSliceY, int srcSliceH,
226 uint8_t *dstParam[], int dstStride[])
228 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
230 yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
231 srcStride[1], dstStride[0]);
236 static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[],
237 int srcStride[], int srcSliceY, int srcSliceH,
238 uint8_t *dstParam[], int dstStride[])
240 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
242 yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
243 srcStride[1], dstStride[0]);
248 static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
249 int srcStride[], int srcSliceY, int srcSliceH,
250 uint8_t *dstParam[], int dstStride[])
252 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
253 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
254 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
256 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
257 dstStride[1], srcStride[0]);
260 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
265 static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
266 int srcStride[], int srcSliceY, int srcSliceH,
267 uint8_t *dstParam[], int dstStride[])
269 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
270 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
271 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
273 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
274 dstStride[1], srcStride[0]);
279 static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
280 int srcStride[], int srcSliceY, int srcSliceH,
281 uint8_t *dstParam[], int dstStride[])
283 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
284 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
285 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
287 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
288 dstStride[1], srcStride[0]);
291 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
296 static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
297 int srcStride[], int srcSliceY, int srcSliceH,
298 uint8_t *dstParam[], int dstStride[])
300 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
301 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
302 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
304 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
305 dstStride[1], srcStride[0]);
310 static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels,
311 const uint8_t *palette)
314 for (i = 0; i < num_pixels; i++)
315 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24);
318 static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels,
319 const uint8_t *palette)
323 for (i = 0; i < num_pixels; i++)
324 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1];
327 static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels,
328 const uint8_t *palette)
332 for (i = 0; i < num_pixels; i++) {
334 dst[0] = palette[src[i << 1] * 4 + 0];
335 dst[1] = palette[src[i << 1] * 4 + 1];
336 dst[2] = palette[src[i << 1] * 4 + 2];
341 static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[],
342 int srcStride[], int srcSliceY, int srcSliceH,
343 uint8_t *dst[], int dstStride[])
347 for (p = 0; p < 4; p++) {
348 int srcstr = srcStride[p] / 2;
349 int dststr = dstStride[p] / 2;
350 uint16_t *dstPtr = (uint16_t *) dst[p];
351 const uint16_t *srcPtr = (const uint16_t *) src[p];
352 int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
353 if(!dstPtr || !srcPtr)
355 for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
356 for (j = 0; j < min_stride; j++) {
357 dstPtr[j] = av_bswap16(srcPtr[j]);
367 static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
368 int srcSliceY, int srcSliceH, uint8_t *dst[],
371 const enum AVPixelFormat srcFormat = c->srcFormat;
372 const enum AVPixelFormat dstFormat = c->dstFormat;
373 void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
374 const uint8_t *palette) = NULL;
376 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
377 const uint8_t *srcPtr = src[0];
379 if (srcFormat == AV_PIX_FMT_GRAY8A) {
381 case AV_PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
382 case AV_PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
383 case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
384 case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
385 case AV_PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
386 case AV_PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
388 } else if (usePal(srcFormat)) {
390 case AV_PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
391 case AV_PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
392 case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
393 case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
394 case AV_PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
395 case AV_PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
400 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
401 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
403 for (i = 0; i < srcSliceH; i++) {
404 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
405 srcPtr += srcStride[0];
406 dstPtr += dstStride[0];
413 static void gbr16ptopacked16(const uint16_t *src[], int srcStride[],
414 uint8_t *dst, int dstStride, int srcSliceH,
415 int alpha, int swap, int bpp, int width)
418 int src_alpha = src[3] != NULL;
419 int scale_high = 16 - bpp, scale_low = (bpp - 8) * 2;
420 for (h = 0; h < srcSliceH; h++) {
421 uint16_t *dest = (uint16_t *)(dst + dstStride * h);
426 if (alpha && !src_alpha) {
427 for (x = 0; x < width; x++) {
428 component = av_bswap16(src[0][x]);
429 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
430 component = av_bswap16(src[1][x]);
431 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
432 component = av_bswap16(src[2][x]);
433 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
436 } else if (alpha && src_alpha) {
437 for (x = 0; x < width; x++) {
438 component = av_bswap16(src[0][x]);
439 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
440 component = av_bswap16(src[1][x]);
441 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
442 component = av_bswap16(src[2][x]);
443 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
444 component = av_bswap16(src[3][x]);
445 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
448 for (x = 0; x < width; x++) {
449 component = av_bswap16(src[0][x]);
450 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
451 component = av_bswap16(src[1][x]);
452 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
453 component = av_bswap16(src[2][x]);
454 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
459 if (alpha && !src_alpha) {
460 for (x = 0; x < width; x++) {
461 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
462 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
463 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
466 } else if (alpha && src_alpha) {
467 for (x = 0; x < width; x++) {
468 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
469 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
470 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
471 *dest++ = av_bswap16(src[3][x] << scale_high | src[3][x] >> scale_low);
474 for (x = 0; x < width; x++) {
475 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
476 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
477 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
482 if (alpha && !src_alpha) {
483 for (x = 0; x < width; x++) {
484 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
485 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
486 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
489 } else if (alpha && src_alpha) {
490 for (x = 0; x < width; x++) {
491 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
492 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
493 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
494 *dest++ = av_bswap16(src[3][x]) << scale_high | av_bswap16(src[3][x]) >> scale_low;
497 for (x = 0; x < width; x++) {
498 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
499 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
500 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
505 if (alpha && !src_alpha) {
506 for (x = 0; x < width; x++) {
507 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
508 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
509 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
512 } else if (alpha && src_alpha) {
513 for (x = 0; x < width; x++) {
514 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
515 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
516 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
517 *dest++ = src[3][x] << scale_high | src[3][x] >> scale_low;
520 for (x = 0; x < width; x++) {
521 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
522 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
523 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
527 for (i = 0; i < 3 + src_alpha; i++)
528 src[i] += srcStride[i] >> 1;
532 static int planarRgb16ToRgb16Wrapper(SwsContext *c, const uint8_t *src[],
533 int srcStride[], int srcSliceY, int srcSliceH,
534 uint8_t *dst[], int dstStride[])
536 const uint16_t *src102[] = { (uint16_t *)src[1], (uint16_t *)src[0], (uint16_t *)src[2], (uint16_t *)src[3] };
537 const uint16_t *src201[] = { (uint16_t *)src[2], (uint16_t *)src[0], (uint16_t *)src[1], (uint16_t *)src[3] };
538 int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
539 int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
540 const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
541 const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
542 int bits_per_sample = src_format->comp[0].depth_minus1 + 1;
544 if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
545 !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
547 if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
548 !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
551 if ((src_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
552 (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) ||
553 bits_per_sample <= 8) {
554 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
555 src_format->name, dst_format->name);
558 switch (c->dstFormat) {
559 case AV_PIX_FMT_BGR48LE:
560 case AV_PIX_FMT_BGR48BE:
561 gbr16ptopacked16(src102, stride102,
562 dst[0] + srcSliceY * dstStride[0], dstStride[0],
563 srcSliceH, 0, swap, bits_per_sample, c->srcW);
565 case AV_PIX_FMT_RGB48LE:
566 case AV_PIX_FMT_RGB48BE:
567 gbr16ptopacked16(src201, stride201,
568 dst[0] + srcSliceY * dstStride[0], dstStride[0],
569 srcSliceH, 0, swap, bits_per_sample, c->srcW);
571 case AV_PIX_FMT_RGBA64LE:
572 case AV_PIX_FMT_RGBA64BE:
573 gbr16ptopacked16(src201, stride201,
574 dst[0] + srcSliceY * dstStride[0], dstStride[0],
575 srcSliceH, 1, swap, bits_per_sample, c->srcW);
577 case AV_PIX_FMT_BGRA64LE:
578 case AV_PIX_FMT_BGRA64BE:
579 gbr16ptopacked16(src102, stride102,
580 dst[0] + srcSliceY * dstStride[0], dstStride[0],
581 srcSliceH, 1, swap, bits_per_sample, c->srcW);
584 av_log(c, AV_LOG_ERROR,
585 "unsupported planar RGB conversion %s -> %s\n",
586 src_format->name, dst_format->name);
592 static void gbr24ptopacked24(const uint8_t *src[], int srcStride[],
593 uint8_t *dst, int dstStride, int srcSliceH,
597 for (h = 0; h < srcSliceH; h++) {
598 uint8_t *dest = dst + dstStride * h;
599 for (x = 0; x < width; x++) {
605 for (i = 0; i < 3; i++)
606 src[i] += srcStride[i];
610 static void gbr24ptopacked32(const uint8_t *src[], int srcStride[],
611 uint8_t *dst, int dstStride, int srcSliceH,
612 int alpha_first, int width)
615 for (h = 0; h < srcSliceH; h++) {
616 uint8_t *dest = dst + dstStride * h;
619 for (x = 0; x < width; x++) {
626 for (x = 0; x < width; x++) {
634 for (i = 0; i < 3; i++)
635 src[i] += srcStride[i];
639 static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[],
640 int srcStride[], int srcSliceY, int srcSliceH,
641 uint8_t *dst[], int dstStride[])
644 const uint8_t *src102[] = { src[1], src[0], src[2] };
645 const uint8_t *src201[] = { src[2], src[0], src[1] };
646 int stride102[] = { srcStride[1], srcStride[0], srcStride[2] };
647 int stride201[] = { srcStride[2], srcStride[0], srcStride[1] };
649 if (c->srcFormat != AV_PIX_FMT_GBRP) {
650 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
651 av_get_pix_fmt_name(c->srcFormat),
652 av_get_pix_fmt_name(c->dstFormat));
656 switch (c->dstFormat) {
657 case AV_PIX_FMT_BGR24:
658 gbr24ptopacked24(src102, stride102,
659 dst[0] + srcSliceY * dstStride[0], dstStride[0],
663 case AV_PIX_FMT_RGB24:
664 gbr24ptopacked24(src201, stride201,
665 dst[0] + srcSliceY * dstStride[0], dstStride[0],
669 case AV_PIX_FMT_ARGB:
671 case AV_PIX_FMT_RGBA:
672 gbr24ptopacked32(src201, stride201,
673 dst[0] + srcSliceY * dstStride[0], dstStride[0],
674 srcSliceH, alpha_first, c->srcW);
677 case AV_PIX_FMT_ABGR:
679 case AV_PIX_FMT_BGRA:
680 gbr24ptopacked32(src102, stride102,
681 dst[0] + srcSliceY * dstStride[0], dstStride[0],
682 srcSliceH, alpha_first, c->srcW);
686 av_log(c, AV_LOG_ERROR,
687 "unsupported planar RGB conversion %s -> %s\n",
688 av_get_pix_fmt_name(c->srcFormat),
689 av_get_pix_fmt_name(c->dstFormat));
695 static int planarRgbToplanarRgbWrapper(SwsContext *c, const uint8_t *src[],
696 int srcStride[], int srcSliceY, int srcSliceH,
697 uint8_t *dst[], int dstStride[])
699 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
700 dst[0], dstStride[0]);
701 copyPlane(src[1], srcStride[1], srcSliceY, srcSliceH, c->srcW,
702 dst[1], dstStride[1]);
703 copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->srcW,
704 dst[2], dstStride[2]);
706 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
711 static void packedtogbr24p(const uint8_t *src, int srcStride,
712 uint8_t *dst[], int dstStride[], int srcSliceH,
713 int alpha_first, int inc_size, int width)
725 for (h = 0; h < srcSliceH; h++) {
726 for (x = 0; x < width; x++) {
733 src += srcStride - width * inc_size;
734 dest[0] += dstStride[0];
735 dest[1] += dstStride[1];
736 dest[2] += dstStride[2];
740 static int rgbToPlanarRgbWrapper(SwsContext *c, const uint8_t *src[],
741 int srcStride[], int srcSliceY, int srcSliceH,
742 uint8_t *dst[], int dstStride[])
745 int stride102[] = { dstStride[1], dstStride[0], dstStride[2] };
746 int stride201[] = { dstStride[2], dstStride[0], dstStride[1] };
747 uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1],
748 dst[0] + srcSliceY * dstStride[0],
749 dst[2] + srcSliceY * dstStride[2] };
750 uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2],
751 dst[0] + srcSliceY * dstStride[0],
752 dst[1] + srcSliceY * dstStride[1] };
754 switch (c->srcFormat) {
755 case AV_PIX_FMT_RGB24:
756 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
757 stride201, srcSliceH, alpha_first, 3, c->srcW);
759 case AV_PIX_FMT_BGR24:
760 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
761 stride102, srcSliceH, alpha_first, 3, c->srcW);
763 case AV_PIX_FMT_ARGB:
765 case AV_PIX_FMT_RGBA:
766 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
767 stride201, srcSliceH, alpha_first, 4, c->srcW);
769 case AV_PIX_FMT_ABGR:
771 case AV_PIX_FMT_BGRA:
772 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
773 stride102, srcSliceH, alpha_first, 4, c->srcW);
776 av_log(c, AV_LOG_ERROR,
777 "unsupported planar RGB conversion %s -> %s\n",
778 av_get_pix_fmt_name(c->srcFormat),
779 av_get_pix_fmt_name(c->dstFormat));
785 #define isRGBA32(x) ( \
786 (x) == AV_PIX_FMT_ARGB \
787 || (x) == AV_PIX_FMT_RGBA \
788 || (x) == AV_PIX_FMT_BGRA \
789 || (x) == AV_PIX_FMT_ABGR \
792 #define isRGBA64(x) ( \
793 (x) == AV_PIX_FMT_RGBA64LE \
794 || (x) == AV_PIX_FMT_RGBA64BE \
795 || (x) == AV_PIX_FMT_BGRA64LE \
796 || (x) == AV_PIX_FMT_BGRA64BE \
799 #define isRGB48(x) ( \
800 (x) == AV_PIX_FMT_RGB48LE \
801 || (x) == AV_PIX_FMT_RGB48BE \
802 || (x) == AV_PIX_FMT_BGR48LE \
803 || (x) == AV_PIX_FMT_BGR48BE \
806 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
807 typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int);
808 static rgbConvFn findRgbConvFn(SwsContext *c)
810 const enum AVPixelFormat srcFormat = c->srcFormat;
811 const enum AVPixelFormat dstFormat = c->dstFormat;
812 const int srcId = c->srcFormatBpp;
813 const int dstId = c->dstFormatBpp;
814 rgbConvFn conv = NULL;
816 #define IS_NOT_NE(bpp, desc) \
817 (((bpp + 7) >> 3) == 2 && \
818 (!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN))
820 #define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst)
822 if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
823 if ( CONV_IS(ABGR, RGBA)
824 || CONV_IS(ARGB, BGRA)
825 || CONV_IS(BGRA, ARGB)
826 || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
827 else if (CONV_IS(ABGR, ARGB)
828 || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
829 else if (CONV_IS(ABGR, BGRA)
830 || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
831 else if (CONV_IS(BGRA, RGBA)
832 || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
833 else if (CONV_IS(BGRA, ABGR)
834 || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
835 } else if (isRGB48(srcFormat) && isRGB48(dstFormat)) {
836 if (CONV_IS(RGB48LE, BGR48LE)
837 || CONV_IS(BGR48LE, RGB48LE)
838 || CONV_IS(RGB48BE, BGR48BE)
839 || CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap;
840 else if (CONV_IS(RGB48LE, BGR48BE)
841 || CONV_IS(BGR48LE, RGB48BE)
842 || CONV_IS(RGB48BE, BGR48LE)
843 || CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap;
844 } else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) {
845 if (CONV_IS(RGBA64LE, BGR48LE)
846 || CONV_IS(BGRA64LE, RGB48LE)
847 || CONV_IS(RGBA64BE, BGR48BE)
848 || CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap;
849 else if (CONV_IS(RGBA64LE, BGR48BE)
850 || CONV_IS(BGRA64LE, RGB48BE)
851 || CONV_IS(RGBA64BE, BGR48LE)
852 || CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap;
853 else if (CONV_IS(RGBA64LE, RGB48LE)
854 || CONV_IS(BGRA64LE, BGR48LE)
855 || CONV_IS(RGBA64BE, RGB48BE)
856 || CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap;
857 else if (CONV_IS(RGBA64LE, RGB48BE)
858 || CONV_IS(BGRA64LE, BGR48BE)
859 || CONV_IS(RGBA64BE, RGB48LE)
860 || CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap;
863 if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
864 (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
865 switch (srcId | (dstId << 16)) {
866 case 0x000F000C: conv = rgb12to15; break;
867 case 0x000F0010: conv = rgb16to15; break;
868 case 0x000F0018: conv = rgb24to15; break;
869 case 0x000F0020: conv = rgb32to15; break;
870 case 0x0010000F: conv = rgb15to16; break;
871 case 0x00100018: conv = rgb24to16; break;
872 case 0x00100020: conv = rgb32to16; break;
873 case 0x0018000F: conv = rgb15to24; break;
874 case 0x00180010: conv = rgb16to24; break;
875 case 0x00180020: conv = rgb32to24; break;
876 case 0x0020000F: conv = rgb15to32; break;
877 case 0x00200010: conv = rgb16to32; break;
878 case 0x00200018: conv = rgb24to32; break;
880 } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) ||
881 (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
882 switch (srcId | (dstId << 16)) {
883 case 0x000C000C: conv = rgb12tobgr12; break;
884 case 0x000F000F: conv = rgb15tobgr15; break;
885 case 0x000F0010: conv = rgb16tobgr15; break;
886 case 0x000F0018: conv = rgb24tobgr15; break;
887 case 0x000F0020: conv = rgb32tobgr15; break;
888 case 0x0010000F: conv = rgb15tobgr16; break;
889 case 0x00100010: conv = rgb16tobgr16; break;
890 case 0x00100018: conv = rgb24tobgr16; break;
891 case 0x00100020: conv = rgb32tobgr16; break;
892 case 0x0018000F: conv = rgb15tobgr24; break;
893 case 0x00180010: conv = rgb16tobgr24; break;
894 case 0x00180018: conv = rgb24tobgr24; break;
895 case 0x00180020: conv = rgb32tobgr24; break;
896 case 0x0020000F: conv = rgb15tobgr32; break;
897 case 0x00200010: conv = rgb16tobgr32; break;
898 case 0x00200018: conv = rgb24tobgr32; break;
902 if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0)
908 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
909 static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
910 int srcSliceY, int srcSliceH, uint8_t *dst[],
914 const enum AVPixelFormat srcFormat = c->srcFormat;
915 const enum AVPixelFormat dstFormat = c->dstFormat;
916 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
917 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
918 const int srcBpp = (c->srcFormatBpp + 7) >> 3;
919 const int dstBpp = (c->dstFormatBpp + 7) >> 3;
920 rgbConvFn conv = findRgbConvFn(c);
923 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
924 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
926 const uint8_t *srcPtr = src[0];
927 uint8_t *dstPtr = dst[0];
928 int src_bswap = IS_NOT_NE(c->srcFormatBpp, desc_src);
929 int dst_bswap = IS_NOT_NE(c->dstFormatBpp, desc_dst);
931 if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) &&
932 !isRGBA32(dstFormat))
933 srcPtr += ALT32_CORR;
935 if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) &&
936 !isRGBA32(srcFormat)) {
938 av_assert0(ALT32_CORR == 1);
939 for (i = 0; i < srcSliceH; i++)
940 dstPtr[dstStride[0] * (srcSliceY + i)] = 255;
941 dstPtr += ALT32_CORR;
944 if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 &&
945 !(srcStride[0] % srcBpp) && !dst_bswap && !src_bswap)
946 conv(srcPtr, dstPtr + dstStride[0] * srcSliceY,
947 srcSliceH * srcStride[0]);
950 dstPtr += dstStride[0] * srcSliceY;
952 for (i = 0; i < srcSliceH; i++) {
954 for(j=0; j<c->srcW; j++)
955 ((uint16_t*)c->formatConvBuffer)[j] = av_bswap16(((uint16_t*)srcPtr)[j]);
956 conv(c->formatConvBuffer, dstPtr, c->srcW * srcBpp);
958 conv(srcPtr, dstPtr, c->srcW * srcBpp);
960 for(j=0; j<c->srcW; j++)
961 ((uint16_t*)dstPtr)[j] = av_bswap16(((uint16_t*)dstPtr)[j]);
962 srcPtr += srcStride[0];
963 dstPtr += dstStride[0];
970 static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
971 int srcStride[], int srcSliceY, int srcSliceH,
972 uint8_t *dst[], int dstStride[])
976 dst[0] + srcSliceY * dstStride[0],
977 dst[1] + (srcSliceY >> 1) * dstStride[1],
978 dst[2] + (srcSliceY >> 1) * dstStride[2],
980 dstStride[0], dstStride[1], srcStride[0],
981 c->input_rgb2yuv_table);
983 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
987 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
988 int srcStride[], int srcSliceY, int srcSliceH,
989 uint8_t *dst[], int dstStride[])
991 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
992 dst[0], dstStride[0]);
994 planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW,
995 srcSliceH >> 2, srcStride[1], dstStride[1]);
996 planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW,
997 srcSliceH >> 2, srcStride[2], dstStride[2]);
999 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1003 /* unscaled copy like stuff (assumes nearly identical formats) */
1004 static int packedCopyWrapper(SwsContext *c, const uint8_t *src[],
1005 int srcStride[], int srcSliceY, int srcSliceH,
1006 uint8_t *dst[], int dstStride[])
1008 if (dstStride[0] == srcStride[0] && srcStride[0] > 0)
1009 memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]);
1012 const uint8_t *srcPtr = src[0];
1013 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
1016 /* universal length finder */
1017 while (length + c->srcW <= FFABS(dstStride[0]) &&
1018 length + c->srcW <= FFABS(srcStride[0]))
1020 av_assert1(length != 0);
1022 for (i = 0; i < srcSliceH; i++) {
1023 memcpy(dstPtr, srcPtr, length);
1024 srcPtr += srcStride[0];
1025 dstPtr += dstStride[0];
1031 #define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\
1032 uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\
1033 int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\
1034 for (i = 0; i < height; i++) {\
1035 const uint8_t *dither= dithers[src_depth-9][i&7];\
1036 for (j = 0; j < length-7; j+=8){\
1037 dst[j+0] = dbswap((bswap(src[j+0]) + dither[0])*scale>>shift);\
1038 dst[j+1] = dbswap((bswap(src[j+1]) + dither[1])*scale>>shift);\
1039 dst[j+2] = dbswap((bswap(src[j+2]) + dither[2])*scale>>shift);\
1040 dst[j+3] = dbswap((bswap(src[j+3]) + dither[3])*scale>>shift);\
1041 dst[j+4] = dbswap((bswap(src[j+4]) + dither[4])*scale>>shift);\
1042 dst[j+5] = dbswap((bswap(src[j+5]) + dither[5])*scale>>shift);\
1043 dst[j+6] = dbswap((bswap(src[j+6]) + dither[6])*scale>>shift);\
1044 dst[j+7] = dbswap((bswap(src[j+7]) + dither[7])*scale>>shift);\
1046 for (; j < length; j++)\
1047 dst[j] = dbswap((bswap(src[j]) + dither[j&7])*scale>>shift);\
1052 static int planarCopyWrapper(SwsContext *c, const uint8_t *src[],
1053 int srcStride[], int srcSliceY, int srcSliceH,
1054 uint8_t *dst[], int dstStride[])
1056 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1057 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1059 for (plane = 0; plane < 4; plane++) {
1060 int length = (plane == 0 || plane == 3) ? c->srcW : FF_CEIL_RSHIFT(c->srcW, c->chrDstHSubSample);
1061 int y = (plane == 0 || plane == 3) ? srcSliceY: FF_CEIL_RSHIFT(srcSliceY, c->chrDstVSubSample);
1062 int height = (plane == 0 || plane == 3) ? srcSliceH: FF_CEIL_RSHIFT(srcSliceH, c->chrDstVSubSample);
1063 const uint8_t *srcPtr = src[plane];
1064 uint8_t *dstPtr = dst[plane] + dstStride[plane] * y;
1065 int shiftonly= plane==1 || plane==2 || (!c->srcRange && plane==0);
1069 // ignore palette for GRAY8
1070 if (plane == 1 && !dst[2]) continue;
1071 if (!src[plane] || (plane == 1 && !src[2])) {
1072 if (is16BPS(c->dstFormat) || isNBPS(c->dstFormat)) {
1073 fillPlane16(dst[plane], dstStride[plane], length, height, y,
1074 plane == 3, desc_dst->comp[plane].depth_minus1,
1075 isBE(c->dstFormat));
1077 fillPlane(dst[plane], dstStride[plane], length, height, y,
1078 (plane == 3) ? 255 : 128);
1081 if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
1082 || (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
1084 const int src_depth = desc_src->comp[plane].depth_minus1 + 1;
1085 const int dst_depth = desc_dst->comp[plane].depth_minus1 + 1;
1086 const uint16_t *srcPtr2 = (const uint16_t *) srcPtr;
1087 uint16_t *dstPtr2 = (uint16_t*)dstPtr;
1089 if (dst_depth == 8) {
1090 if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1091 DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , )
1093 DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, )
1095 } else if (src_depth == 8) {
1096 for (i = 0; i < height; i++) {
1099 for (j = 0; j < length; j++)\
1100 w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
1102 for (j = 0; j < length; j++)\
1103 w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
1104 (srcPtr[j]>>(2*8-dst_depth)));\
1106 if(isBE(c->dstFormat)){
1111 dstPtr2 += dstStride[plane]/2;
1112 srcPtr += srcStride[plane];
1114 } else if (src_depth <= dst_depth) {
1115 for (i = 0; i < height; i++) {
1117 if(isBE(c->srcFormat) == HAVE_BIGENDIAN &&
1118 isBE(c->dstFormat) == HAVE_BIGENDIAN &&
1120 unsigned shift = dst_depth - src_depth;
1122 #define FAST_COPY_UP(shift) \
1123 for (; j < length - 3; j += 4) { \
1124 uint64_t v = AV_RN64A(srcPtr2 + j); \
1125 AV_WN64A(dstPtr2 + j, v << shift); \
1128 #define FAST_COPY_UP(shift) \
1129 for (; j < length - 1; j += 2) { \
1130 uint32_t v = AV_RN32A(srcPtr2 + j); \
1131 AV_WN32A(dstPtr2 + j, v << shift); \
1136 case 6: FAST_COPY_UP(6); break;
1137 case 7: FAST_COPY_UP(7); break;
1140 #define COPY_UP(r,w) \
1142 for (; j < length; j++){ \
1143 unsigned int v= r(&srcPtr2[j]);\
1144 w(&dstPtr2[j], v<<(dst_depth-src_depth));\
1147 for (; j < length; j++){ \
1148 unsigned int v= r(&srcPtr2[j]);\
1149 w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
1150 (v>>(2*src_depth-dst_depth)));\
1153 if(isBE(c->srcFormat)){
1154 if(isBE(c->dstFormat)){
1155 COPY_UP(AV_RB16, AV_WB16)
1157 COPY_UP(AV_RB16, AV_WL16)
1160 if(isBE(c->dstFormat)){
1161 COPY_UP(AV_RL16, AV_WB16)
1163 COPY_UP(AV_RL16, AV_WL16)
1166 dstPtr2 += dstStride[plane]/2;
1167 srcPtr2 += srcStride[plane]/2;
1170 if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1171 if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1172 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , )
1174 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16)
1177 if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1178 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, )
1180 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16)
1184 } else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) &&
1185 isBE(c->srcFormat) != isBE(c->dstFormat)) {
1187 for (i = 0; i < height; i++) {
1188 for (j = 0; j < length; j++)
1189 ((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]);
1190 srcPtr += srcStride[plane];
1191 dstPtr += dstStride[plane];
1193 } else if (dstStride[plane] == srcStride[plane] &&
1194 srcStride[plane] > 0 && srcStride[plane] == length) {
1195 memcpy(dst[plane] + dstStride[plane] * y, src[plane],
1196 height * dstStride[plane]);
1198 if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1200 else if (!desc_src->comp[0].depth_minus1)
1201 length >>= 3; // monowhite/black
1202 for (i = 0; i < height; i++) {
1203 memcpy(dstPtr, srcPtr, length);
1204 srcPtr += srcStride[plane];
1205 dstPtr += dstStride[plane];
1214 #define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \
1215 ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \
1216 (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE))
1219 void ff_get_unscaled_swscale(SwsContext *c)
1221 const enum AVPixelFormat srcFormat = c->srcFormat;
1222 const enum AVPixelFormat dstFormat = c->dstFormat;
1223 const int flags = c->flags;
1224 const int dstH = c->dstH;
1227 needsDither = isAnyRGB(dstFormat) &&
1228 c->dstFormatBpp < 24 &&
1229 (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1232 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
1233 (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) {
1234 c->swscale = planarToNv12Wrapper;
1237 if (dstFormat == AV_PIX_FMT_YUV420P &&
1238 (srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) {
1239 c->swscale = nv12ToPlanarWrapper;
1242 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P ||
1243 srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) &&
1244 !(flags & SWS_ACCURATE_RND) && (c->dither == SWS_DITHER_BAYER || c->dither == SWS_DITHER_AUTO) && !(dstH & 1)) {
1245 c->swscale = ff_yuv2rgb_get_func_ptr(c);
1248 if (srcFormat == AV_PIX_FMT_YUV410P &&
1249 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1250 !(flags & SWS_BITEXACT)) {
1251 c->swscale = yvu9ToYv12Wrapper;
1255 if (srcFormat == AV_PIX_FMT_BGR24 &&
1256 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1257 !(flags & SWS_ACCURATE_RND))
1258 c->swscale = bgr24ToYv12Wrapper;
1260 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
1261 if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
1262 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
1263 c->swscale = rgbToRgbWrapper;
1265 if ((srcFormat == AV_PIX_FMT_GBRP && dstFormat == AV_PIX_FMT_GBRAP) ||
1266 (srcFormat == AV_PIX_FMT_GBRAP && dstFormat == AV_PIX_FMT_GBRP))
1267 c->swscale = planarRgbToplanarRgbWrapper;
1269 #define isByteRGB(f) ( \
1270 f == AV_PIX_FMT_RGB32 || \
1271 f == AV_PIX_FMT_RGB32_1 || \
1272 f == AV_PIX_FMT_RGB24 || \
1273 f == AV_PIX_FMT_BGR32 || \
1274 f == AV_PIX_FMT_BGR32_1 || \
1275 f == AV_PIX_FMT_BGR24)
1277 if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
1278 c->swscale = planarRgbToRgbWrapper;
1280 if ((srcFormat == AV_PIX_FMT_GBRP9LE || srcFormat == AV_PIX_FMT_GBRP9BE ||
1281 srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
1282 srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||
1283 srcFormat == AV_PIX_FMT_GBRP12LE || srcFormat == AV_PIX_FMT_GBRP12BE ||
1284 srcFormat == AV_PIX_FMT_GBRP14LE || srcFormat == AV_PIX_FMT_GBRP14BE ||
1285 srcFormat == AV_PIX_FMT_GBRAP16LE || srcFormat == AV_PIX_FMT_GBRAP16BE) &&
1286 (dstFormat == AV_PIX_FMT_RGB48LE || dstFormat == AV_PIX_FMT_RGB48BE ||
1287 dstFormat == AV_PIX_FMT_BGR48LE || dstFormat == AV_PIX_FMT_BGR48BE ||
1288 dstFormat == AV_PIX_FMT_RGBA64LE || dstFormat == AV_PIX_FMT_RGBA64BE ||
1289 dstFormat == AV_PIX_FMT_BGRA64LE || dstFormat == AV_PIX_FMT_BGRA64BE))
1290 c->swscale = planarRgb16ToRgb16Wrapper;
1292 if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth_minus1 == 7 &&
1293 isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP)
1294 c->swscale = rgbToPlanarRgbWrapper;
1296 /* bswap 16 bits per pixel/component packed formats */
1297 if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) ||
1298 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48) ||
1299 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1300 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) ||
1301 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) ||
1302 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) ||
1303 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP9) ||
1304 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP10) ||
1305 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP12) ||
1306 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP14) ||
1307 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP16) ||
1308 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP16) ||
1309 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) ||
1310 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48) ||
1311 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1312 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) ||
1313 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565) ||
1314 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12) ||
1315 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P9) ||
1316 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P10) ||
1317 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P12) ||
1318 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P14) ||
1319 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P16) ||
1320 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P9) ||
1321 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P10) ||
1322 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P12) ||
1323 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P14) ||
1324 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P16) ||
1325 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P9) ||
1326 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P10) ||
1327 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P12) ||
1328 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P14) ||
1329 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P16))
1330 c->swscale = packed_16bpc_bswap;
1332 if (usePal(srcFormat) && isByteRGB(dstFormat))
1333 c->swscale = palToRgbWrapper;
1335 if (srcFormat == AV_PIX_FMT_YUV422P) {
1336 if (dstFormat == AV_PIX_FMT_YUYV422)
1337 c->swscale = yuv422pToYuy2Wrapper;
1338 else if (dstFormat == AV_PIX_FMT_UYVY422)
1339 c->swscale = yuv422pToUyvyWrapper;
1342 /* LQ converters if -sws 0 or -sws 4*/
1343 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
1345 if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) {
1346 if (dstFormat == AV_PIX_FMT_YUYV422)
1347 c->swscale = planarToYuy2Wrapper;
1348 else if (dstFormat == AV_PIX_FMT_UYVY422)
1349 c->swscale = planarToUyvyWrapper;
1352 if (srcFormat == AV_PIX_FMT_YUYV422 &&
1353 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1354 c->swscale = yuyvToYuv420Wrapper;
1355 if (srcFormat == AV_PIX_FMT_UYVY422 &&
1356 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1357 c->swscale = uyvyToYuv420Wrapper;
1358 if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P)
1359 c->swscale = yuyvToYuv422Wrapper;
1360 if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P)
1361 c->swscale = uyvyToYuv422Wrapper;
1363 #define isPlanarGray(x) (isGray(x) && (x) != AV_PIX_FMT_GRAY8A)
1365 if ( srcFormat == dstFormat ||
1366 (srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) ||
1367 (srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) ||
1368 (isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
1369 (isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) ||
1370 (isPlanarGray(dstFormat) && isPlanarGray(srcFormat)) ||
1371 (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) &&
1372 c->chrDstHSubSample == c->chrSrcHSubSample &&
1373 c->chrDstVSubSample == c->chrSrcVSubSample &&
1374 dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
1375 srcFormat != AV_PIX_FMT_NV12 && srcFormat != AV_PIX_FMT_NV21))
1377 if (isPacked(c->srcFormat))
1378 c->swscale = packedCopyWrapper;
1379 else /* Planar YUV or gray */
1380 c->swscale = planarCopyWrapper;
1384 ff_get_unscaled_swscale_bfin(c);
1386 ff_get_unscaled_swscale_ppc(c);
1389 /* Convert the palette to the same packed 32-bit format as the palette */
1390 void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst,
1391 int num_pixels, const uint8_t *palette)
1395 for (i = 0; i < num_pixels; i++)
1396 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
1399 /* Palette format: ABCD -> dst format: ABC */
1400 void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst,
1401 int num_pixels, const uint8_t *palette)
1405 for (i = 0; i < num_pixels; i++) {
1407 dst[0] = palette[src[i] * 4 + 0];
1408 dst[1] = palette[src[i] * 4 + 1];
1409 dst[2] = palette[src[i] * 4 + 2];