2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 * the C code (not assembly, mmx, ...) of this file can be used
21 * under the LGPL license too
25 supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
26 supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
27 {BGR,RGB}{1,4,8,15,16} support dithering
29 unscaled special converters (YV12=I420=IYUV, Y800=Y8)
30 YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
35 BGR24 -> BGR32 & RGB24 -> RGB32
36 BGR32 -> BGR24 & RGB32 -> RGB24
41 tested special converters (most are tested actually, but I did not write it down ...)
48 untested special converters
49 YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)
50 YV12/I420 -> YV12/I420
51 YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
52 BGR24 -> BGR32 & RGB24 -> RGB32
53 BGR32 -> BGR24 & RGB32 -> RGB24
57 #define _SVID_SOURCE //needed for MAP_ANONYMOUS
67 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
68 #define MAP_ANONYMOUS MAP_ANON
72 #define WIN32_LEAN_AND_MEAN
76 #include "swscale_internal.h"
78 #include "libavutil/x86_cpu.h"
79 #include "libavutil/bswap.h"
81 unsigned swscale_version(void)
83 return LIBSWSCALE_VERSION_INT
;
90 //#define HAVE_AMD3DNOW
93 //#define WORDS_BIGENDIAN
96 #define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
98 #define RET 0xC3 //near return opcode for x86
103 #define PI 3.14159265358979323846
106 #define isSupportedIn(x) ( \
107 (x)==PIX_FMT_YUV420P \
108 || (x)==PIX_FMT_YUVA420P \
109 || (x)==PIX_FMT_YUYV422 \
110 || (x)==PIX_FMT_UYVY422 \
111 || (x)==PIX_FMT_RGB32 \
112 || (x)==PIX_FMT_RGB32_1 \
113 || (x)==PIX_FMT_BGR24 \
114 || (x)==PIX_FMT_BGR565 \
115 || (x)==PIX_FMT_BGR555 \
116 || (x)==PIX_FMT_BGR32 \
117 || (x)==PIX_FMT_BGR32_1 \
118 || (x)==PIX_FMT_RGB24 \
119 || (x)==PIX_FMT_RGB565 \
120 || (x)==PIX_FMT_RGB555 \
121 || (x)==PIX_FMT_GRAY8 \
122 || (x)==PIX_FMT_YUV410P \
123 || (x)==PIX_FMT_YUV440P \
124 || (x)==PIX_FMT_GRAY16BE \
125 || (x)==PIX_FMT_GRAY16LE \
126 || (x)==PIX_FMT_YUV444P \
127 || (x)==PIX_FMT_YUV422P \
128 || (x)==PIX_FMT_YUV411P \
129 || (x)==PIX_FMT_PAL8 \
130 || (x)==PIX_FMT_BGR8 \
131 || (x)==PIX_FMT_RGB8 \
132 || (x)==PIX_FMT_BGR4_BYTE \
133 || (x)==PIX_FMT_RGB4_BYTE \
134 || (x)==PIX_FMT_YUV440P \
135 || (x)==PIX_FMT_MONOWHITE \
136 || (x)==PIX_FMT_MONOBLACK \
138 #define isSupportedOut(x) ( \
139 (x)==PIX_FMT_YUV420P \
140 || (x)==PIX_FMT_YUVA420P \
141 || (x)==PIX_FMT_YUYV422 \
142 || (x)==PIX_FMT_UYVY422 \
143 || (x)==PIX_FMT_YUV444P \
144 || (x)==PIX_FMT_YUV422P \
145 || (x)==PIX_FMT_YUV411P \
148 || (x)==PIX_FMT_NV12 \
149 || (x)==PIX_FMT_NV21 \
150 || (x)==PIX_FMT_GRAY16BE \
151 || (x)==PIX_FMT_GRAY16LE \
152 || (x)==PIX_FMT_GRAY8 \
153 || (x)==PIX_FMT_YUV410P \
154 || (x)==PIX_FMT_YUV440P \
156 #define isPacked(x) ( \
158 || (x)==PIX_FMT_YUYV422 \
159 || (x)==PIX_FMT_UYVY422 \
163 #define usePal(x) ( \
165 || (x)==PIX_FMT_BGR4_BYTE \
166 || (x)==PIX_FMT_RGB4_BYTE \
167 || (x)==PIX_FMT_BGR8 \
168 || (x)==PIX_FMT_RGB8 \
171 #define RGB2YUV_SHIFT 15
172 #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
173 #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
174 #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
175 #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
176 #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
177 #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
178 #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
179 #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
180 #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
182 extern const int32_t ff_yuv2rgb_coeffs
[8][4];
184 static const double rgb2yuv_table
[8][9]={
185 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
186 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
187 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
188 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
189 {0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
190 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
191 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
192 {0.701 , 0.087 , 0.212 , -0.384, 0.5 -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
197 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
200 more intelligent misalignment avoidance for the horizontal scaler
201 write special vertical cubic upscale version
202 optimize C code (YV12 / minmax)
203 add support for packed pixel YUV input & output
204 add support for Y8 output
205 optimize BGR24 & BGR32
206 add BGR4 output support
207 write special BGR->BGR scaler
210 #if ARCH_X86 && CONFIG_GPL
211 DECLARE_ASM_CONST(8, uint64_t, bF8
)= 0xF8F8F8F8F8F8F8F8LL
;
212 DECLARE_ASM_CONST(8, uint64_t, bFC
)= 0xFCFCFCFCFCFCFCFCLL
;
213 DECLARE_ASM_CONST(8, uint64_t, w10
)= 0x0010001000100010LL
;
214 DECLARE_ASM_CONST(8, uint64_t, w02
)= 0x0002000200020002LL
;
215 DECLARE_ASM_CONST(8, uint64_t, bm00001111
)=0x00000000FFFFFFFFLL
;
216 DECLARE_ASM_CONST(8, uint64_t, bm00000111
)=0x0000000000FFFFFFLL
;
217 DECLARE_ASM_CONST(8, uint64_t, bm11111000
)=0xFFFFFFFFFF000000LL
;
218 DECLARE_ASM_CONST(8, uint64_t, bm01010101
)=0x00FF00FF00FF00FFLL
;
220 const DECLARE_ALIGNED(8, uint64_t, ff_dither4
[2]) = {
221 0x0103010301030103LL
,
222 0x0200020002000200LL
,};
224 const DECLARE_ALIGNED(8, uint64_t, ff_dither8
[2]) = {
225 0x0602060206020602LL
,
226 0x0004000400040004LL
,};
228 DECLARE_ASM_CONST(8, uint64_t, b16Mask
)= 0x001F001F001F001FLL
;
229 DECLARE_ASM_CONST(8, uint64_t, g16Mask
)= 0x07E007E007E007E0LL
;
230 DECLARE_ASM_CONST(8, uint64_t, r16Mask
)= 0xF800F800F800F800LL
;
231 DECLARE_ASM_CONST(8, uint64_t, b15Mask
)= 0x001F001F001F001FLL
;
232 DECLARE_ASM_CONST(8, uint64_t, g15Mask
)= 0x03E003E003E003E0LL
;
233 DECLARE_ASM_CONST(8, uint64_t, r15Mask
)= 0x7C007C007C007C00LL
;
235 DECLARE_ALIGNED(8, const uint64_t, ff_M24A
) = 0x00FF0000FF0000FFLL
;
236 DECLARE_ALIGNED(8, const uint64_t, ff_M24B
) = 0xFF0000FF0000FF00LL
;
237 DECLARE_ALIGNED(8, const uint64_t, ff_M24C
) = 0x0000FF0000FF0000LL
;
240 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff
) = 0x000000210041000DULL
;
241 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff
) = 0x0000FFEEFFDC0038ULL
;
242 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff
) = 0x00000038FFD2FFF8ULL
;
244 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff
) = 0x000020E540830C8BULL
;
245 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff
) = 0x0000ED0FDAC23831ULL
;
246 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff
) = 0x00003831D0E6F6EAULL
;
247 #endif /* FAST_BGR2YV12 */
248 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset
) = 0x1010101010101010ULL
;
249 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset
) = 0x8080808080808080ULL
;
250 DECLARE_ALIGNED(8, const uint64_t, ff_w1111
) = 0x0001000100010001ULL
;
252 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff
) = 0x0C88000040870C88ULL
;
253 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff
) = 0x20DE4087000020DEULL
;
254 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff
) = 0x20DE0000408720DEULL
;
255 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff
) = 0x0C88408700000C88ULL
;
256 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset
) = 0x0008400000084000ULL
;
258 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV
[2][4]) = {
259 {0x38380000DAC83838ULL
, 0xECFFDAC80000ECFFULL
, 0xF6E40000D0E3F6E4ULL
, 0x3838D0E300003838ULL
},
260 {0xECFF0000DAC8ECFFULL
, 0x3838DAC800003838ULL
, 0x38380000D0E33838ULL
, 0xF6E4D0E30000F6E4ULL
},
263 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset
)= 0x0040400000404000ULL
;
265 #endif /* ARCH_X86 && CONFIG_GPL */
267 // clipping helper table for C implementations:
268 static unsigned char clip_table
[768];
270 static SwsVector
*sws_getConvVec(SwsVector
*a
, SwsVector
*b
);
272 static const uint8_t __attribute__((aligned(8))) dither_2x2_4
[2][8]={
273 { 1, 3, 1, 3, 1, 3, 1, 3, },
274 { 2, 0, 2, 0, 2, 0, 2, 0, },
277 static const uint8_t __attribute__((aligned(8))) dither_2x2_8
[2][8]={
278 { 6, 2, 6, 2, 6, 2, 6, 2, },
279 { 0, 4, 0, 4, 0, 4, 0, 4, },
282 const uint8_t __attribute__((aligned(8))) dither_8x8_32
[8][8]={
283 { 17, 9, 23, 15, 16, 8, 22, 14, },
284 { 5, 29, 3, 27, 4, 28, 2, 26, },
285 { 21, 13, 19, 11, 20, 12, 18, 10, },
286 { 0, 24, 6, 30, 1, 25, 7, 31, },
287 { 16, 8, 22, 14, 17, 9, 23, 15, },
288 { 4, 28, 2, 26, 5, 29, 3, 27, },
289 { 20, 12, 18, 10, 21, 13, 19, 11, },
290 { 1, 25, 7, 31, 0, 24, 6, 30, },
294 const uint8_t __attribute__((aligned(8))) dither_8x8_64
[8][8]={
295 { 0, 48, 12, 60, 3, 51, 15, 63, },
296 { 32, 16, 44, 28, 35, 19, 47, 31, },
297 { 8, 56, 4, 52, 11, 59, 7, 55, },
298 { 40, 24, 36, 20, 43, 27, 39, 23, },
299 { 2, 50, 14, 62, 1, 49, 13, 61, },
300 { 34, 18, 46, 30, 33, 17, 45, 29, },
301 { 10, 58, 6, 54, 9, 57, 5, 53, },
302 { 42, 26, 38, 22, 41, 25, 37, 21, },
306 const uint8_t __attribute__((aligned(8))) dither_8x8_73
[8][8]={
307 { 0, 55, 14, 68, 3, 58, 17, 72, },
308 { 37, 18, 50, 32, 40, 22, 54, 35, },
309 { 9, 64, 5, 59, 13, 67, 8, 63, },
310 { 46, 27, 41, 23, 49, 31, 44, 26, },
311 { 2, 57, 16, 71, 1, 56, 15, 70, },
312 { 39, 21, 52, 34, 38, 19, 51, 33, },
313 { 11, 66, 7, 62, 10, 65, 6, 60, },
314 { 48, 30, 43, 25, 47, 29, 42, 24, },
318 const uint8_t __attribute__((aligned(8))) dither_8x8_128
[8][8]={
319 { 68, 36, 92, 60, 66, 34, 90, 58, },
320 { 20, 116, 12, 108, 18, 114, 10, 106, },
321 { 84, 52, 76, 44, 82, 50, 74, 42, },
322 { 0, 96, 24, 120, 6, 102, 30, 126, },
323 { 64, 32, 88, 56, 70, 38, 94, 62, },
324 { 16, 112, 8, 104, 22, 118, 14, 110, },
325 { 80, 48, 72, 40, 86, 54, 78, 46, },
326 { 4, 100, 28, 124, 2, 98, 26, 122, },
331 const uint8_t __attribute__((aligned(8))) dither_8x8_220
[8][8]={
332 {117, 62, 158, 103, 113, 58, 155, 100, },
333 { 34, 199, 21, 186, 31, 196, 17, 182, },
334 {144, 89, 131, 76, 141, 86, 127, 72, },
335 { 0, 165, 41, 206, 10, 175, 52, 217, },
336 {110, 55, 151, 96, 120, 65, 162, 107, },
337 { 28, 193, 14, 179, 38, 203, 24, 189, },
338 {138, 83, 124, 69, 148, 93, 134, 79, },
339 { 7, 172, 48, 213, 3, 168, 45, 210, },
342 // tries to correct a gamma of 1.5
343 const uint8_t __attribute__((aligned(8))) dither_8x8_220
[8][8]={
344 { 0, 143, 18, 200, 2, 156, 25, 215, },
345 { 78, 28, 125, 64, 89, 36, 138, 74, },
346 { 10, 180, 3, 161, 16, 195, 8, 175, },
347 {109, 51, 93, 38, 121, 60, 105, 47, },
348 { 1, 152, 23, 210, 0, 147, 20, 205, },
349 { 85, 33, 134, 71, 81, 30, 130, 67, },
350 { 14, 190, 6, 171, 12, 185, 5, 166, },
351 {117, 57, 101, 44, 113, 54, 97, 41, },
354 // tries to correct a gamma of 2.0
355 const uint8_t __attribute__((aligned(8))) dither_8x8_220
[8][8]={
356 { 0, 124, 8, 193, 0, 140, 12, 213, },
357 { 55, 14, 104, 42, 66, 19, 119, 52, },
358 { 3, 168, 1, 145, 6, 187, 3, 162, },
359 { 86, 31, 70, 21, 99, 39, 82, 28, },
360 { 0, 134, 11, 206, 0, 129, 9, 200, },
361 { 62, 17, 114, 48, 58, 16, 109, 45, },
362 { 5, 181, 2, 157, 4, 175, 1, 151, },
363 { 95, 36, 78, 26, 90, 34, 74, 24, },
366 // tries to correct a gamma of 2.5
367 const uint8_t __attribute__((aligned(8))) dither_8x8_220
[8][8]={
368 { 0, 107, 3, 187, 0, 125, 6, 212, },
369 { 39, 7, 86, 28, 49, 11, 102, 36, },
370 { 1, 158, 0, 131, 3, 180, 1, 151, },
371 { 68, 19, 52, 12, 81, 25, 64, 17, },
372 { 0, 119, 5, 203, 0, 113, 4, 195, },
373 { 45, 9, 96, 33, 42, 8, 91, 30, },
374 { 2, 172, 1, 144, 2, 165, 0, 137, },
375 { 77, 23, 60, 15, 72, 21, 56, 14, },
379 const char *sws_format_name(enum PixelFormat format
)
382 case PIX_FMT_YUV420P
:
384 case PIX_FMT_YUVA420P
:
386 case PIX_FMT_YUYV422
:
392 case PIX_FMT_YUV422P
:
394 case PIX_FMT_YUV444P
:
398 case PIX_FMT_YUV410P
:
400 case PIX_FMT_YUV411P
:
406 case PIX_FMT_GRAY16BE
:
408 case PIX_FMT_GRAY16LE
:
412 case PIX_FMT_MONOWHITE
:
414 case PIX_FMT_MONOBLACK
:
418 case PIX_FMT_YUVJ420P
:
420 case PIX_FMT_YUVJ422P
:
422 case PIX_FMT_YUVJ444P
:
424 case PIX_FMT_XVMC_MPEG2_MC
:
425 return "xvmc_mpeg2_mc";
426 case PIX_FMT_XVMC_MPEG2_IDCT
:
427 return "xvmc_mpeg2_idct";
428 case PIX_FMT_UYVY422
:
430 case PIX_FMT_UYYVYY411
:
432 case PIX_FMT_RGB32_1
:
434 case PIX_FMT_BGR32_1
:
446 case PIX_FMT_BGR4_BYTE
:
452 case PIX_FMT_RGB4_BYTE
:
458 case PIX_FMT_YUV440P
:
460 case PIX_FMT_VDPAU_H264
:
462 case PIX_FMT_VDPAU_MPEG1
:
463 return "vdpau_mpeg1";
464 case PIX_FMT_VDPAU_MPEG2
:
465 return "vdpau_mpeg2";
466 case PIX_FMT_VDPAU_WMV3
:
468 case PIX_FMT_VDPAU_VC1
:
471 return "Unknown format";
475 static inline void yuv2yuvXinC(int16_t *lumFilter
, int16_t **lumSrc
, int lumFilterSize
,
476 int16_t *chrFilter
, int16_t **chrSrc
, int chrFilterSize
,
477 int16_t **alpSrc
, uint8_t *dest
, uint8_t *uDest
, uint8_t *vDest
, uint8_t *aDest
, int dstW
, int chrDstW
)
479 //FIXME Optimize (just quickly written not optimized..)
481 for (i
=0; i
<dstW
; i
++)
485 for (j
=0; j
<lumFilterSize
; j
++)
486 val
+= lumSrc
[j
][i
] * lumFilter
[j
];
488 dest
[i
]= av_clip_uint8(val
>>19);
492 for (i
=0; i
<chrDstW
; i
++)
497 for (j
=0; j
<chrFilterSize
; j
++)
499 u
+= chrSrc
[j
][i
] * chrFilter
[j
];
500 v
+= chrSrc
[j
][i
+ VOFW
] * chrFilter
[j
];
503 uDest
[i
]= av_clip_uint8(u
>>19);
504 vDest
[i
]= av_clip_uint8(v
>>19);
507 if (CONFIG_SWSCALE_ALPHA
&& aDest
)
508 for (i
=0; i
<dstW
; i
++){
511 for (j
=0; j
<lumFilterSize
; j
++)
512 val
+= alpSrc
[j
][i
] * lumFilter
[j
];
514 aDest
[i
]= av_clip_uint8(val
>>19);
519 static inline void yuv2nv12XinC(int16_t *lumFilter
, int16_t **lumSrc
, int lumFilterSize
,
520 int16_t *chrFilter
, int16_t **chrSrc
, int chrFilterSize
,
521 uint8_t *dest
, uint8_t *uDest
, int dstW
, int chrDstW
, int dstFormat
)
523 //FIXME Optimize (just quickly written not optimized..)
525 for (i
=0; i
<dstW
; i
++)
529 for (j
=0; j
<lumFilterSize
; j
++)
530 val
+= lumSrc
[j
][i
] * lumFilter
[j
];
532 dest
[i
]= av_clip_uint8(val
>>19);
538 if (dstFormat
== PIX_FMT_NV12
)
539 for (i
=0; i
<chrDstW
; i
++)
544 for (j
=0; j
<chrFilterSize
; j
++)
546 u
+= chrSrc
[j
][i
] * chrFilter
[j
];
547 v
+= chrSrc
[j
][i
+ VOFW
] * chrFilter
[j
];
550 uDest
[2*i
]= av_clip_uint8(u
>>19);
551 uDest
[2*i
+1]= av_clip_uint8(v
>>19);
554 for (i
=0; i
<chrDstW
; i
++)
559 for (j
=0; j
<chrFilterSize
; j
++)
561 u
+= chrSrc
[j
][i
] * chrFilter
[j
];
562 v
+= chrSrc
[j
][i
+ VOFW
] * chrFilter
[j
];
565 uDest
[2*i
]= av_clip_uint8(v
>>19);
566 uDest
[2*i
+1]= av_clip_uint8(u
>>19);
570 #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
571 for (i=0; i<(dstW>>1); i++){\
577 int av_unused A1, A2;\
578 type av_unused *r, *b, *g;\
581 for (j=0; j<lumFilterSize; j++)\
583 Y1 += lumSrc[j][i2] * lumFilter[j];\
584 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
586 for (j=0; j<chrFilterSize; j++)\
588 U += chrSrc[j][i] * chrFilter[j];\
589 V += chrSrc[j][i+VOFW] * chrFilter[j];\
598 for (j=0; j<lumFilterSize; j++){\
599 A1 += alpSrc[j][i2 ] * lumFilter[j];\
600 A2 += alpSrc[j][i2+1] * lumFilter[j];\
606 #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
607 YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
608 if ((Y1|Y2|U|V)&256)\
610 if (Y1>255) Y1=255; \
611 else if (Y1<0)Y1=0; \
612 if (Y2>255) Y2=255; \
613 else if (Y2<0)Y2=0; \
619 if (alpha && ((A1|A2)&256)){\
620 A1=av_clip_uint8(A1);\
621 A2=av_clip_uint8(A2);\
624 #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
625 for (i=0; i<dstW; i++){\
633 for (j=0; j<lumFilterSize; j++){\
634 Y += lumSrc[j][i ] * lumFilter[j];\
636 for (j=0; j<chrFilterSize; j++){\
637 U += chrSrc[j][i ] * chrFilter[j];\
638 V += chrSrc[j][i+VOFW] * chrFilter[j];\
645 for (j=0; j<lumFilterSize; j++)\
646 A += alpSrc[j][i ] * lumFilter[j];\
649 A = av_clip_uint8(A);\
652 #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
653 YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
654 Y-= c->yuv2rgb_y_offset;\
655 Y*= c->yuv2rgb_y_coeff;\
657 R= Y + V*c->yuv2rgb_v2r_coeff;\
658 G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
659 B= Y + U*c->yuv2rgb_u2b_coeff;\
660 if ((R|G|B)&(0xC0000000)){\
661 if (R>=(256<<22)) R=(256<<22)-1; \
663 if (G>=(256<<22)) G=(256<<22)-1; \
665 if (B>=(256<<22)) B=(256<<22)-1; \
670 #define YSCALE_YUV_2_GRAY16_C \
671 for (i=0; i<(dstW>>1); i++){\
680 for (j=0; j<lumFilterSize; j++)\
682 Y1 += lumSrc[j][i2] * lumFilter[j];\
683 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
687 if ((Y1|Y2|U|V)&65536)\
689 if (Y1>65535) Y1=65535; \
690 else if (Y1<0)Y1=0; \
691 if (Y2>65535) Y2=65535; \
692 else if (Y2<0)Y2=0; \
695 #define YSCALE_YUV_2_RGBX_C(type,alpha) \
696 YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
697 r = (type *)c->table_rV[V]; \
698 g = (type *)(c->table_gU[U] + c->table_gV[V]); \
699 b = (type *)c->table_bU[U]; \
701 #define YSCALE_YUV_2_PACKED2_C(type,alpha) \
702 for (i=0; i<(dstW>>1); i++){ \
704 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
705 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
706 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
707 int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
708 type av_unused *r, *b, *g; \
709 int av_unused A1, A2; \
711 A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
712 A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
715 #define YSCALE_YUV_2_GRAY16_2_C \
716 for (i=0; i<(dstW>>1); i++){ \
718 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
719 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11; \
721 #define YSCALE_YUV_2_RGB2_C(type,alpha) \
722 YSCALE_YUV_2_PACKED2_C(type,alpha)\
723 r = (type *)c->table_rV[V];\
724 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
725 b = (type *)c->table_bU[U];\
727 #define YSCALE_YUV_2_PACKED1_C(type,alpha) \
728 for (i=0; i<(dstW>>1); i++){\
730 int Y1= buf0[i2 ]>>7;\
731 int Y2= buf0[i2+1]>>7;\
732 int U= (uvbuf1[i ])>>7;\
733 int V= (uvbuf1[i+VOFW])>>7;\
734 type av_unused *r, *b, *g;\
735 int av_unused A1, A2;\
741 #define YSCALE_YUV_2_GRAY16_1_C \
742 for (i=0; i<(dstW>>1); i++){\
744 int Y1= buf0[i2 ]<<1;\
745 int Y2= buf0[i2+1]<<1;\
747 #define YSCALE_YUV_2_RGB1_C(type,alpha) \
748 YSCALE_YUV_2_PACKED1_C(type,alpha)\
749 r = (type *)c->table_rV[V];\
750 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
751 b = (type *)c->table_bU[U];\
753 #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
754 for (i=0; i<(dstW>>1); i++){\
756 int Y1= buf0[i2 ]>>7;\
757 int Y2= buf0[i2+1]>>7;\
758 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
759 int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
760 type av_unused *r, *b, *g;\
761 int av_unused A1, A2;\
767 #define YSCALE_YUV_2_RGB1B_C(type,alpha) \
768 YSCALE_YUV_2_PACKED1B_C(type,alpha)\
769 r = (type *)c->table_rV[V];\
770 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
771 b = (type *)c->table_bU[U];\
773 #define YSCALE_YUV_2_MONO2_C \
774 const uint8_t * const d128=dither_8x8_220[y&7];\
775 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
776 for (i=0; i<dstW-7; i+=8){\
778 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
779 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
780 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
781 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
782 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
783 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
784 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
785 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
786 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
791 #define YSCALE_YUV_2_MONOX_C \
792 const uint8_t * const d128=dither_8x8_220[y&7];\
793 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
795 for (i=0; i<dstW-1; i+=2){\
800 for (j=0; j<lumFilterSize; j++)\
802 Y1 += lumSrc[j][i] * lumFilter[j];\
803 Y2 += lumSrc[j][i+1] * lumFilter[j];\
814 acc+= acc + g[Y1+d128[(i+0)&7]];\
815 acc+= acc + g[Y2+d128[(i+1)&7]];\
817 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
823 #define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
824 switch(c->dstFormat)\
829 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
830 func(uint32_t,needAlpha)\
831 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
832 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
835 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){\
837 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
838 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
842 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
843 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
851 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
852 func(uint32_t,needAlpha)\
853 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
854 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
857 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){\
859 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
860 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
864 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
865 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
872 ((uint8_t*)dest)[0]= r[Y1];\
873 ((uint8_t*)dest)[1]= g[Y1];\
874 ((uint8_t*)dest)[2]= b[Y1];\
875 ((uint8_t*)dest)[3]= r[Y2];\
876 ((uint8_t*)dest)[4]= g[Y2];\
877 ((uint8_t*)dest)[5]= b[Y2];\
883 ((uint8_t*)dest)[0]= b[Y1];\
884 ((uint8_t*)dest)[1]= g[Y1];\
885 ((uint8_t*)dest)[2]= r[Y1];\
886 ((uint8_t*)dest)[3]= b[Y2];\
887 ((uint8_t*)dest)[4]= g[Y2];\
888 ((uint8_t*)dest)[5]= r[Y2];\
892 case PIX_FMT_RGB565:\
893 case PIX_FMT_BGR565:\
895 const int dr1= dither_2x2_8[y&1 ][0];\
896 const int dg1= dither_2x2_4[y&1 ][0];\
897 const int db1= dither_2x2_8[(y&1)^1][0];\
898 const int dr2= dither_2x2_8[y&1 ][1];\
899 const int dg2= dither_2x2_4[y&1 ][1];\
900 const int db2= dither_2x2_8[(y&1)^1][1];\
902 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
903 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
907 case PIX_FMT_RGB555:\
908 case PIX_FMT_BGR555:\
910 const int dr1= dither_2x2_8[y&1 ][0];\
911 const int dg1= dither_2x2_8[y&1 ][1];\
912 const int db1= dither_2x2_8[(y&1)^1][0];\
913 const int dr2= dither_2x2_8[y&1 ][1];\
914 const int dg2= dither_2x2_8[y&1 ][0];\
915 const int db2= dither_2x2_8[(y&1)^1][1];\
917 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
918 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
925 const uint8_t * const d64= dither_8x8_73[y&7];\
926 const uint8_t * const d32= dither_8x8_32[y&7];\
928 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
929 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
936 const uint8_t * const d64= dither_8x8_73 [y&7];\
937 const uint8_t * const d128=dither_8x8_220[y&7];\
939 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
940 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
944 case PIX_FMT_RGB4_BYTE:\
945 case PIX_FMT_BGR4_BYTE:\
947 const uint8_t * const d64= dither_8x8_73 [y&7];\
948 const uint8_t * const d128=dither_8x8_220[y&7];\
950 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
951 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
955 case PIX_FMT_MONOBLACK:\
956 case PIX_FMT_MONOWHITE:\
961 case PIX_FMT_YUYV422:\
963 ((uint8_t*)dest)[2*i2+0]= Y1;\
964 ((uint8_t*)dest)[2*i2+1]= U;\
965 ((uint8_t*)dest)[2*i2+2]= Y2;\
966 ((uint8_t*)dest)[2*i2+3]= V;\
969 case PIX_FMT_UYVY422:\
971 ((uint8_t*)dest)[2*i2+0]= U;\
972 ((uint8_t*)dest)[2*i2+1]= Y1;\
973 ((uint8_t*)dest)[2*i2+2]= V;\
974 ((uint8_t*)dest)[2*i2+3]= Y2;\
977 case PIX_FMT_GRAY16BE:\
979 ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
980 ((uint8_t*)dest)[2*i2+1]= Y1;\
981 ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
982 ((uint8_t*)dest)[2*i2+3]= Y2;\
985 case PIX_FMT_GRAY16LE:\
987 ((uint8_t*)dest)[2*i2+0]= Y1;\
988 ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
989 ((uint8_t*)dest)[2*i2+2]= Y2;\
990 ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
996 static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
997 int16_t *chrFilter
, int16_t **chrSrc
, int chrFilterSize
,
998 int16_t **alpSrc
, uint8_t *dest
, int dstW
, int y
)
1001 YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C
, YSCALE_YUV_2_PACKEDX_C(void,0), YSCALE_YUV_2_GRAY16_C
, YSCALE_YUV_2_MONOX_C
)
1004 static inline void yuv2rgbXinC_full(SwsContext
*c
, int16_t *lumFilter
, int16_t **lumSrc
, int lumFilterSize
,
1005 int16_t *chrFilter
, int16_t **chrSrc
, int chrFilterSize
,
1006 int16_t **alpSrc
, uint8_t *dest
, int dstW
, int y
)
1009 int step
= fmt_depth(c
->dstFormat
)/8;
1012 switch(c
->dstFormat
){
1020 int needAlpha
= CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
;
1021 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha
)
1022 dest
[aidx
]= needAlpha
? A
: 255;
1029 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
){
1030 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1038 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1055 int needAlpha
= CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
;
1056 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha
)
1057 dest
[aidx
]= needAlpha
? A
: 255;
1064 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
){
1065 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1073 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1088 static void fillPlane(uint8_t* plane
, int stride
, int width
, int height
, int y
, uint8_t val
){
1090 uint8_t *ptr
= plane
+ stride
*y
;
1091 for (i
=0; i
<height
; i
++){
1092 memset(ptr
, val
, width
);
1097 //Note: we have C, X86, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
1099 #if !HAVE_MMX || defined (RUNTIME_CPUDETECT) || !CONFIG_GPL
1104 #if (HAVE_ALTIVEC || defined (RUNTIME_CPUDETECT)) && CONFIG_GPL
1106 #define COMPILE_ALTIVEC
1112 #if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || defined (RUNTIME_CPUDETECT)) && CONFIG_GPL
1116 #if (HAVE_MMX2 || defined (RUNTIME_CPUDETECT)) && CONFIG_GPL
1117 #define COMPILE_MMX2
1120 #if ((HAVE_AMD3DNOW && !HAVE_MMX2) || defined (RUNTIME_CPUDETECT)) && CONFIG_GPL
1121 #define COMPILE_3DNOW
1127 #undef HAVE_AMD3DNOW
1131 #define HAVE_AMD3DNOW 0
1132 #define HAVE_ALTIVEC 0
1135 #define RENAME(a) a ## _C
1136 #include "swscale_template.c"
1139 #ifdef COMPILE_ALTIVEC
1142 #define HAVE_ALTIVEC 1
1143 #define RENAME(a) a ## _altivec
1144 #include "swscale_template.c"
1154 #undef HAVE_AMD3DNOW
1156 #define RENAME(a) a ## _X86
1157 #include "swscale_template.c"
1164 #undef HAVE_AMD3DNOW
1167 #define HAVE_AMD3DNOW 0
1168 #define RENAME(a) a ## _MMX
1169 #include "swscale_template.c"
1177 #undef HAVE_AMD3DNOW
1180 #define HAVE_AMD3DNOW 0
1181 #define RENAME(a) a ## _MMX2
1182 #include "swscale_template.c"
1186 #ifdef COMPILE_3DNOW
1190 #undef HAVE_AMD3DNOW
1193 #define HAVE_AMD3DNOW 1
1194 #define RENAME(a) a ## _3DNow
1195 #include "swscale_template.c"
1200 // minor note: the HAVE_xyz are messed up after this line so don't use them
1202 static double getSplineCoeff(double a
, double b
, double c
, double d
, double dist
)
1204 // printf("%f %f %f %f %f\n", a,b,c,d,dist);
1205 if (dist
<=1.0) return ((d
*dist
+ c
)*dist
+ b
)*dist
+a
;
1206 else return getSplineCoeff( 0.0,
1213 static inline int initFilter(int16_t **outFilter
, int16_t **filterPos
, int *outFilterSize
, int xInc
,
1214 int srcW
, int dstW
, int filterAlign
, int one
, int flags
,
1215 SwsVector
*srcFilter
, SwsVector
*dstFilter
, double param
[2])
1221 int64_t *filter
=NULL
;
1222 int64_t *filter2
=NULL
;
1223 const int64_t fone
= 1LL<<54;
1226 if (flags
& SWS_CPU_CAPS_MMX
)
1227 __asm__
volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
1230 // NOTE: the +1 is for the MMX scaler which reads over the end
1231 *filterPos
= av_malloc((dstW
+1)*sizeof(int16_t));
1233 if (FFABS(xInc
- 0x10000) <10) // unscaled
1237 filter
= av_mallocz(dstW
*sizeof(*filter
)*filterSize
);
1239 for (i
=0; i
<dstW
; i
++)
1241 filter
[i
*filterSize
]= fone
;
1246 else if (flags
&SWS_POINT
) // lame looking point sampling mode
1251 filter
= av_malloc(dstW
*sizeof(*filter
)*filterSize
);
1253 xDstInSrc
= xInc
/2 - 0x8000;
1254 for (i
=0; i
<dstW
; i
++)
1256 int xx
= (xDstInSrc
- ((filterSize
-1)<<15) + (1<<15))>>16;
1258 (*filterPos
)[i
]= xx
;
1263 else if ((xInc
<= (1<<16) && (flags
&SWS_AREA
)) || (flags
&SWS_FAST_BILINEAR
)) // bilinear upscale
1267 if (flags
&SWS_BICUBIC
) filterSize
= 4;
1268 else if (flags
&SWS_X
) filterSize
= 4;
1269 else filterSize
= 2; // SWS_BILINEAR / SWS_AREA
1270 filter
= av_malloc(dstW
*sizeof(*filter
)*filterSize
);
1272 xDstInSrc
= xInc
/2 - 0x8000;
1273 for (i
=0; i
<dstW
; i
++)
1275 int xx
= (xDstInSrc
- ((filterSize
-1)<<15) + (1<<15))>>16;
1278 (*filterPos
)[i
]= xx
;
1279 //bilinear upscale / linear interpolate / area averaging
1280 for (j
=0; j
<filterSize
; j
++)
1282 int64_t coeff
= fone
- FFABS((xx
<<16) - xDstInSrc
)*(fone
>>16);
1283 if (coeff
<0) coeff
=0;
1284 filter
[i
*filterSize
+ j
]= coeff
;
1295 if (flags
&SWS_BICUBIC
) sizeFactor
= 4;
1296 else if (flags
&SWS_X
) sizeFactor
= 8;
1297 else if (flags
&SWS_AREA
) sizeFactor
= 1; //downscale only, for upscale it is bilinear
1298 else if (flags
&SWS_GAUSS
) sizeFactor
= 8; // infinite ;)
1299 else if (flags
&SWS_LANCZOS
) sizeFactor
= param
[0] != SWS_PARAM_DEFAULT
? ceil(2*param
[0]) : 6;
1300 else if (flags
&SWS_SINC
) sizeFactor
= 20; // infinite ;)
1301 else if (flags
&SWS_SPLINE
) sizeFactor
= 20; // infinite ;)
1302 else if (flags
&SWS_BILINEAR
) sizeFactor
= 2;
1304 sizeFactor
= 0; //GCC warning killer
1308 if (xInc
<= 1<<16) filterSize
= 1 + sizeFactor
; // upscale
1309 else filterSize
= 1 + (sizeFactor
*srcW
+ dstW
- 1)/ dstW
;
1311 if (filterSize
> srcW
-2) filterSize
=srcW
-2;
1313 filter
= av_malloc(dstW
*sizeof(*filter
)*filterSize
);
1315 xDstInSrc
= xInc
- 0x10000;
1316 for (i
=0; i
<dstW
; i
++)
1318 int xx
= (xDstInSrc
- ((filterSize
-2)<<16)) / (1<<17);
1320 (*filterPos
)[i
]= xx
;
1321 for (j
=0; j
<filterSize
; j
++)
1323 int64_t d
= ((int64_t)FFABS((xx
<<17) - xDstInSrc
))<<13;
1329 floatd
= d
* (1.0/(1<<30));
1331 if (flags
& SWS_BICUBIC
)
1333 int64_t B
= (param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 0) * (1<<24);
1334 int64_t C
= (param
[1] != SWS_PARAM_DEFAULT
? param
[1] : 0.6) * (1<<24);
1335 int64_t dd
= ( d
*d
)>>30;
1336 int64_t ddd
= (dd
*d
)>>30;
1339 coeff
= (12*(1<<24)-9*B
-6*C
)*ddd
+ (-18*(1<<24)+12*B
+6*C
)*dd
+ (6*(1<<24)-2*B
)*(1<<30);
1340 else if (d
< 1LL<<31)
1341 coeff
= (-B
-6*C
)*ddd
+ (6*B
+30*C
)*dd
+ (-12*B
-48*C
)*d
+ (8*B
+24*C
)*(1<<30);
1344 coeff
*= fone
>>(30+24);
1346 /* else if (flags & SWS_X)
1348 double p= param ? param*0.01 : 0.3;
1349 coeff = d ? sin(d*PI)/(d*PI) : 1.0;
1350 coeff*= pow(2.0, - p*d*d);
1352 else if (flags
& SWS_X
)
1354 double A
= param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 1.0;
1361 if (c
<0.0) c
= -pow(-c
, A
);
1363 coeff
= (c
*0.5 + 0.5)*fone
;
1365 else if (flags
& SWS_AREA
)
1367 int64_t d2
= d
- (1<<29);
1368 if (d2
*xInc
< -(1LL<<(29+16))) coeff
= 1.0 * (1LL<<(30+16));
1369 else if (d2
*xInc
< (1LL<<(29+16))) coeff
= -d2
*xInc
+ (1LL<<(29+16));
1371 coeff
*= fone
>>(30+16);
1373 else if (flags
& SWS_GAUSS
)
1375 double p
= param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 3.0;
1376 coeff
= (pow(2.0, - p
*floatd
*floatd
))*fone
;
1378 else if (flags
& SWS_SINC
)
1380 coeff
= (d
? sin(floatd
*PI
)/(floatd
*PI
) : 1.0)*fone
;
1382 else if (flags
& SWS_LANCZOS
)
1384 double p
= param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 3.0;
1385 coeff
= (d
? sin(floatd
*PI
)*sin(floatd
*PI
/p
)/(floatd
*floatd
*PI
*PI
/p
) : 1.0)*fone
;
1386 if (floatd
>p
) coeff
=0;
1388 else if (flags
& SWS_BILINEAR
)
1391 if (coeff
<0) coeff
=0;
1392 coeff
*= fone
>> 30;
1394 else if (flags
& SWS_SPLINE
)
1396 double p
=-2.196152422706632;
1397 coeff
= getSplineCoeff(1.0, 0.0, p
, -p
-1.0, floatd
) * fone
;
1400 coeff
= 0.0; //GCC warning killer
1404 filter
[i
*filterSize
+ j
]= coeff
;
1411 /* apply src & dst Filter to filter -> filter2
1414 assert(filterSize
>0);
1415 filter2Size
= filterSize
;
1416 if (srcFilter
) filter2Size
+= srcFilter
->length
- 1;
1417 if (dstFilter
) filter2Size
+= dstFilter
->length
- 1;
1418 assert(filter2Size
>0);
1419 filter2
= av_mallocz(filter2Size
*dstW
*sizeof(*filter2
));
1421 for (i
=0; i
<dstW
; i
++)
1426 for (k
=0; k
<srcFilter
->length
; k
++){
1427 for (j
=0; j
<filterSize
; j
++)
1428 filter2
[i
*filter2Size
+ k
+ j
] += srcFilter
->coeff
[k
]*filter
[i
*filterSize
+ j
];
1431 for (j
=0; j
<filterSize
; j
++)
1432 filter2
[i
*filter2Size
+ j
]= filter
[i
*filterSize
+ j
];
1436 (*filterPos
)[i
]+= (filterSize
-1)/2 - (filter2Size
-1)/2;
1440 /* try to reduce the filter-size (step1 find size and shift left) */
1441 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
1443 for (i
=dstW
-1; i
>=0; i
--)
1445 int min
= filter2Size
;
1449 /* get rid off near zero elements on the left by shifting left */
1450 for (j
=0; j
<filter2Size
; j
++)
1453 cutOff
+= FFABS(filter2
[i
*filter2Size
]);
1455 if (cutOff
> SWS_MAX_REDUCE_CUTOFF
*fone
) break;
1457 /* preserve monotonicity because the core can't handle the filter otherwise */
1458 if (i
<dstW
-1 && (*filterPos
)[i
] >= (*filterPos
)[i
+1]) break;
1460 // move filter coefficients left
1461 for (k
=1; k
<filter2Size
; k
++)
1462 filter2
[i
*filter2Size
+ k
- 1]= filter2
[i
*filter2Size
+ k
];
1463 filter2
[i
*filter2Size
+ k
- 1]= 0;
1468 /* count near zeros on the right */
1469 for (j
=filter2Size
-1; j
>0; j
--)
1471 cutOff
+= FFABS(filter2
[i
*filter2Size
+ j
]);
1473 if (cutOff
> SWS_MAX_REDUCE_CUTOFF
*fone
) break;
1477 if (min
>minFilterSize
) minFilterSize
= min
;
1480 if (flags
& SWS_CPU_CAPS_ALTIVEC
) {
1481 // we can handle the special case 4,
1482 // so we don't want to go to the full 8
1483 if (minFilterSize
< 5)
1486 // We really don't want to waste our time
1487 // doing useless computation, so fall back on
1488 // the scalar C code for very small filters.
1489 // Vectorizing is worth it only if you have a
1490 // decent-sized vector.
1491 if (minFilterSize
< 3)
1495 if (flags
& SWS_CPU_CAPS_MMX
) {
1496 // special case for unscaled vertical filtering
1497 if (minFilterSize
== 1 && filterAlign
== 2)
1501 assert(minFilterSize
> 0);
1502 filterSize
= (minFilterSize
+(filterAlign
-1)) & (~(filterAlign
-1));
1503 assert(filterSize
> 0);
1504 filter
= av_malloc(filterSize
*dstW
*sizeof(*filter
));
1505 if (filterSize
>= MAX_FILTER_SIZE
*16/((flags
&SWS_ACCURATE_RND
) ? APCK_SIZE
: 16) || !filter
)
1507 *outFilterSize
= filterSize
;
1509 if (flags
&SWS_PRINT_INFO
)
1510 av_log(NULL
, AV_LOG_VERBOSE
, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size
, filterSize
);
1511 /* try to reduce the filter-size (step2 reduce it) */
1512 for (i
=0; i
<dstW
; i
++)
1516 for (j
=0; j
<filterSize
; j
++)
1518 if (j
>=filter2Size
) filter
[i
*filterSize
+ j
]= 0;
1519 else filter
[i
*filterSize
+ j
]= filter2
[i
*filter2Size
+ j
];
1520 if((flags
& SWS_BITEXACT
) && j
>=minFilterSize
)
1521 filter
[i
*filterSize
+ j
]= 0;
1526 //FIXME try to align filterPos if possible
1529 for (i
=0; i
<dstW
; i
++)
1532 if ((*filterPos
)[i
] < 0)
1534 // move filter coefficients left to compensate for filterPos
1535 for (j
=1; j
<filterSize
; j
++)
1537 int left
= FFMAX(j
+ (*filterPos
)[i
], 0);
1538 filter
[i
*filterSize
+ left
] += filter
[i
*filterSize
+ j
];
1539 filter
[i
*filterSize
+ j
]=0;
1544 if ((*filterPos
)[i
] + filterSize
> srcW
)
1546 int shift
= (*filterPos
)[i
] + filterSize
- srcW
;
1547 // move filter coefficients right to compensate for filterPos
1548 for (j
=filterSize
-2; j
>=0; j
--)
1550 int right
= FFMIN(j
+ shift
, filterSize
-1);
1551 filter
[i
*filterSize
+right
] += filter
[i
*filterSize
+j
];
1552 filter
[i
*filterSize
+j
]=0;
1554 (*filterPos
)[i
]= srcW
- filterSize
;
1558 // Note the +1 is for the MMX scaler which reads over the end
1559 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
1560 *outFilter
= av_mallocz(*outFilterSize
*(dstW
+1)*sizeof(int16_t));
1562 /* normalize & store in outFilter */
1563 for (i
=0; i
<dstW
; i
++)
1569 for (j
=0; j
<filterSize
; j
++)
1571 sum
+= filter
[i
*filterSize
+ j
];
1573 sum
= (sum
+ one
/2)/ one
;
1574 for (j
=0; j
<*outFilterSize
; j
++)
1576 int64_t v
= filter
[i
*filterSize
+ j
] + error
;
1577 int intV
= ROUNDED_DIV(v
, sum
);
1578 (*outFilter
)[i
*(*outFilterSize
) + j
]= intV
;
1579 error
= v
- intV
*sum
;
1583 (*filterPos
)[dstW
]= (*filterPos
)[dstW
-1]; // the MMX scaler will read over the end
1584 for (i
=0; i
<*outFilterSize
; i
++)
1586 int j
= dstW
*(*outFilterSize
);
1587 (*outFilter
)[j
+ i
]= (*outFilter
)[j
+ i
- (*outFilterSize
)];
1598 static void initMMX2HScaler(int dstW
, int xInc
, uint8_t *funnyCode
, int16_t *filter
, int32_t *filterPos
, int numSplits
)
1601 x86_reg imm8OfPShufW1A
;
1602 x86_reg imm8OfPShufW2A
;
1603 x86_reg fragmentLengthA
;
1605 x86_reg imm8OfPShufW1B
;
1606 x86_reg imm8OfPShufW2B
;
1607 x86_reg fragmentLengthB
;
1612 // create an optimized horizontal scaling routine
1620 "movq (%%"REG_d
", %%"REG_a
"), %%mm3 \n\t"
1621 "movd (%%"REG_c
", %%"REG_S
"), %%mm0 \n\t"
1622 "movd 1(%%"REG_c
", %%"REG_S
"), %%mm1 \n\t"
1623 "punpcklbw %%mm7, %%mm1 \n\t"
1624 "punpcklbw %%mm7, %%mm0 \n\t"
1625 "pshufw $0xFF, %%mm1, %%mm1 \n\t"
1627 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1629 "psubw %%mm1, %%mm0 \n\t"
1630 "movl 8(%%"REG_b
", %%"REG_a
"), %%esi \n\t"
1631 "pmullw %%mm3, %%mm0 \n\t"
1632 "psllw $7, %%mm1 \n\t"
1633 "paddw %%mm1, %%mm0 \n\t"
1635 "movq %%mm0, (%%"REG_D
", %%"REG_a
") \n\t"
1637 "add $8, %%"REG_a
" \n\t"
1641 "lea " LOCAL_MANGLE(0b
) ", %0 \n\t"
1642 "lea " LOCAL_MANGLE(1b
) ", %1 \n\t"
1643 "lea " LOCAL_MANGLE(2b
) ", %2 \n\t"
1648 "lea " LOCAL_MANGLE(9b
) ", %3 \n\t"
1652 :"=r" (fragmentA
), "=r" (imm8OfPShufW1A
), "=r" (imm8OfPShufW2A
),
1653 "=r" (fragmentLengthA
)
1660 "movq (%%"REG_d
", %%"REG_a
"), %%mm3 \n\t"
1661 "movd (%%"REG_c
", %%"REG_S
"), %%mm0 \n\t"
1662 "punpcklbw %%mm7, %%mm0 \n\t"
1663 "pshufw $0xFF, %%mm0, %%mm1 \n\t"
1665 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1667 "psubw %%mm1, %%mm0 \n\t"
1668 "movl 8(%%"REG_b
", %%"REG_a
"), %%esi \n\t"
1669 "pmullw %%mm3, %%mm0 \n\t"
1670 "psllw $7, %%mm1 \n\t"
1671 "paddw %%mm1, %%mm0 \n\t"
1673 "movq %%mm0, (%%"REG_D
", %%"REG_a
") \n\t"
1675 "add $8, %%"REG_a
" \n\t"
1679 "lea " LOCAL_MANGLE(0b
) ", %0 \n\t"
1680 "lea " LOCAL_MANGLE(1b
) ", %1 \n\t"
1681 "lea " LOCAL_MANGLE(2b
) ", %2 \n\t"
1686 "lea " LOCAL_MANGLE(9b
) ", %3 \n\t"
1690 :"=r" (fragmentB
), "=r" (imm8OfPShufW1B
), "=r" (imm8OfPShufW2B
),
1691 "=r" (fragmentLengthB
)
1694 xpos
= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
1697 for (i
=0; i
<dstW
/numSplits
; i
++)
1704 int b
=((xpos
+xInc
)>>16) - xx
;
1705 int c
=((xpos
+xInc
*2)>>16) - xx
;
1706 int d
=((xpos
+xInc
*3)>>16) - xx
;
1708 filter
[i
] = (( xpos
& 0xFFFF) ^ 0xFFFF)>>9;
1709 filter
[i
+1] = (((xpos
+xInc
) & 0xFFFF) ^ 0xFFFF)>>9;
1710 filter
[i
+2] = (((xpos
+xInc
*2) & 0xFFFF) ^ 0xFFFF)>>9;
1711 filter
[i
+3] = (((xpos
+xInc
*3) & 0xFFFF) ^ 0xFFFF)>>9;
1716 int maxShift
= 3-(d
+1);
1719 memcpy(funnyCode
+ fragmentPos
, fragmentB
, fragmentLengthB
);
1721 funnyCode
[fragmentPos
+ imm8OfPShufW1B
]=
1722 (a
+1) | ((b
+1)<<2) | ((c
+1)<<4) | ((d
+1)<<6);
1723 funnyCode
[fragmentPos
+ imm8OfPShufW2B
]=
1724 a
| (b
<<2) | (c
<<4) | (d
<<6);
1726 if (i
+3>=dstW
) shift
=maxShift
; //avoid overread
1727 else if ((filterPos
[i
/2]&3) <= maxShift
) shift
=filterPos
[i
/2]&3; //Align
1729 if (shift
&& i
>=shift
)
1731 funnyCode
[fragmentPos
+ imm8OfPShufW1B
]+= 0x55*shift
;
1732 funnyCode
[fragmentPos
+ imm8OfPShufW2B
]+= 0x55*shift
;
1733 filterPos
[i
/2]-=shift
;
1736 fragmentPos
+= fragmentLengthB
;
1743 memcpy(funnyCode
+ fragmentPos
, fragmentA
, fragmentLengthA
);
1745 funnyCode
[fragmentPos
+ imm8OfPShufW1A
]=
1746 funnyCode
[fragmentPos
+ imm8OfPShufW2A
]=
1747 a
| (b
<<2) | (c
<<4) | (d
<<6);
1749 if (i
+4>=dstW
) shift
=maxShift
; //avoid overread
1750 else if ((filterPos
[i
/2]&3) <= maxShift
) shift
=filterPos
[i
/2]&3; //partial align
1752 if (shift
&& i
>=shift
)
1754 funnyCode
[fragmentPos
+ imm8OfPShufW1A
]+= 0x55*shift
;
1755 funnyCode
[fragmentPos
+ imm8OfPShufW2A
]+= 0x55*shift
;
1756 filterPos
[i
/2]-=shift
;
1759 fragmentPos
+= fragmentLengthA
;
1762 funnyCode
[fragmentPos
]= RET
;
1766 filterPos
[((i
/2)+1)&(~1)]= xpos
>>16; // needed to jump to the next part
1768 #endif /* COMPILE_MMX2 */
1770 static void globalInit(void){
1771 // generating tables:
1773 for (i
=0; i
<768; i
++){
1774 int c
= av_clip_uint8(i
-256);
1779 static SwsFunc
getSwsFunc(int flags
){
1781 #if defined(RUNTIME_CPUDETECT) && CONFIG_GPL
1783 // ordered per speed fastest first
1784 if (flags
& SWS_CPU_CAPS_MMX2
)
1785 return swScale_MMX2
;
1786 else if (flags
& SWS_CPU_CAPS_3DNOW
)
1787 return swScale_3DNow
;
1788 else if (flags
& SWS_CPU_CAPS_MMX
)
1795 if (flags
& SWS_CPU_CAPS_ALTIVEC
)
1796 return swScale_altivec
;
1801 #endif /* ARCH_X86 */
1802 #else //RUNTIME_CPUDETECT
1804 return swScale_MMX2
;
1806 return swScale_3DNow
;
1810 return swScale_altivec
;
1814 #endif //!RUNTIME_CPUDETECT
1817 static int PlanarToNV12Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1818 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1819 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1821 if (dstStride
[0]==srcStride
[0] && srcStride
[0] > 0)
1822 memcpy(dst
, src
[0], srcSliceH
*dstStride
[0]);
1826 uint8_t *srcPtr
= src
[0];
1827 uint8_t *dstPtr
= dst
;
1828 for (i
=0; i
<srcSliceH
; i
++)
1830 memcpy(dstPtr
, srcPtr
, c
->srcW
);
1831 srcPtr
+= srcStride
[0];
1832 dstPtr
+= dstStride
[0];
1835 dst
= dstParam
[1] + dstStride
[1]*srcSliceY
/2;
1836 if (c
->dstFormat
== PIX_FMT_NV12
)
1837 interleaveBytes(src
[1], src
[2], dst
, c
->srcW
/2, srcSliceH
/2, srcStride
[1], srcStride
[2], dstStride
[0]);
1839 interleaveBytes(src
[2], src
[1], dst
, c
->srcW
/2, srcSliceH
/2, srcStride
[2], srcStride
[1], dstStride
[0]);
1844 static int PlanarToYuy2Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1845 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1846 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1848 yv12toyuy2(src
[0], src
[1], src
[2], dst
, c
->srcW
, srcSliceH
, srcStride
[0], srcStride
[1], dstStride
[0]);
1853 static int PlanarToUyvyWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1854 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1855 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1857 yv12touyvy(src
[0], src
[1], src
[2], dst
, c
->srcW
, srcSliceH
, srcStride
[0], srcStride
[1], dstStride
[0]);
1862 static int YUV422PToYuy2Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1863 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1864 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1866 yuv422ptoyuy2(src
[0],src
[1],src
[2],dst
,c
->srcW
,srcSliceH
,srcStride
[0],srcStride
[1],dstStride
[0]);
1871 static int YUV422PToUyvyWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1872 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1873 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1875 yuv422ptouyvy(src
[0],src
[1],src
[2],dst
,c
->srcW
,srcSliceH
,srcStride
[0],srcStride
[1],dstStride
[0]);
1880 static int YUYV2YUV420Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1881 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1882 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1883 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
/2;
1884 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
/2;
1886 yuyvtoyuv420(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
1889 fillPlane(dstParam
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
1894 static int YUYV2YUV422Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1895 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1896 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1897 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
;
1898 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
;
1900 yuyvtoyuv422(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
1905 static int UYVY2YUV420Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1906 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1907 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1908 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
/2;
1909 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
/2;
1911 uyvytoyuv420(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
1914 fillPlane(dstParam
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
1919 static int UYVY2YUV422Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1920 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
1921 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
1922 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
;
1923 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
;
1925 uyvytoyuv422(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
1930 static int pal2rgbWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1931 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
1932 const enum PixelFormat srcFormat
= c
->srcFormat
;
1933 const enum PixelFormat dstFormat
= c
->dstFormat
;
1934 void (*conv
)(const uint8_t *src
, uint8_t *dst
, long num_pixels
,
1935 const uint8_t *palette
)=NULL
;
1937 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
1938 uint8_t *srcPtr
= src
[0];
1940 if (!usePal(srcFormat
))
1941 av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
1942 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
1945 case PIX_FMT_RGB32
: conv
= palette8topacked32
; break;
1946 case PIX_FMT_BGR32
: conv
= palette8topacked32
; break;
1947 case PIX_FMT_BGR32_1
: conv
= palette8topacked32
; break;
1948 case PIX_FMT_RGB32_1
: conv
= palette8topacked32
; break;
1949 case PIX_FMT_RGB24
: conv
= palette8topacked24
; break;
1950 case PIX_FMT_BGR24
: conv
= palette8topacked24
; break;
1951 default: av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
1952 sws_format_name(srcFormat
), sws_format_name(dstFormat
)); break;
1956 for (i
=0; i
<srcSliceH
; i
++) {
1957 conv(srcPtr
, dstPtr
, c
->srcW
, (uint8_t *) c
->pal_rgb
);
1958 srcPtr
+= srcStride
[0];
1959 dstPtr
+= dstStride
[0];
1965 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1966 static int rgb2rgbWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
1967 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
1968 const enum PixelFormat srcFormat
= c
->srcFormat
;
1969 const enum PixelFormat dstFormat
= c
->dstFormat
;
1970 const int srcBpp
= (fmt_depth(srcFormat
) + 7) >> 3;
1971 const int dstBpp
= (fmt_depth(dstFormat
) + 7) >> 3;
1972 const int srcId
= fmt_depth(srcFormat
) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
1973 const int dstId
= fmt_depth(dstFormat
) >> 2;
1974 void (*conv
)(const uint8_t *src
, uint8_t *dst
, long src_size
)=NULL
;
1977 if ( (isBGR(srcFormat
) && isBGR(dstFormat
))
1978 || (isRGB(srcFormat
) && isRGB(dstFormat
))){
1979 switch(srcId
| (dstId
<<4)){
1980 case 0x34: conv
= rgb16to15
; break;
1981 case 0x36: conv
= rgb24to15
; break;
1982 case 0x38: conv
= rgb32to15
; break;
1983 case 0x43: conv
= rgb15to16
; break;
1984 case 0x46: conv
= rgb24to16
; break;
1985 case 0x48: conv
= rgb32to16
; break;
1986 case 0x63: conv
= rgb15to24
; break;
1987 case 0x64: conv
= rgb16to24
; break;
1988 case 0x68: conv
= rgb32to24
; break;
1989 case 0x83: conv
= rgb15to32
; break;
1990 case 0x84: conv
= rgb16to32
; break;
1991 case 0x86: conv
= rgb24to32
; break;
1992 default: av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
1993 sws_format_name(srcFormat
), sws_format_name(dstFormat
)); break;
1995 }else if ( (isBGR(srcFormat
) && isRGB(dstFormat
))
1996 || (isRGB(srcFormat
) && isBGR(dstFormat
))){
1997 switch(srcId
| (dstId
<<4)){
1998 case 0x33: conv
= rgb15tobgr15
; break;
1999 case 0x34: conv
= rgb16tobgr15
; break;
2000 case 0x36: conv
= rgb24tobgr15
; break;
2001 case 0x38: conv
= rgb32tobgr15
; break;
2002 case 0x43: conv
= rgb15tobgr16
; break;
2003 case 0x44: conv
= rgb16tobgr16
; break;
2004 case 0x46: conv
= rgb24tobgr16
; break;
2005 case 0x48: conv
= rgb32tobgr16
; break;
2006 case 0x63: conv
= rgb15tobgr24
; break;
2007 case 0x64: conv
= rgb16tobgr24
; break;
2008 case 0x66: conv
= rgb24tobgr24
; break;
2009 case 0x68: conv
= rgb32tobgr24
; break;
2010 case 0x83: conv
= rgb15tobgr32
; break;
2011 case 0x84: conv
= rgb16tobgr32
; break;
2012 case 0x86: conv
= rgb24tobgr32
; break;
2013 case 0x88: conv
= rgb32tobgr32
; break;
2014 default: av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2015 sws_format_name(srcFormat
), sws_format_name(dstFormat
)); break;
2018 av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2019 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
2024 uint8_t *srcPtr
= src
[0];
2025 if(srcFormat
== PIX_FMT_RGB32_1
|| srcFormat
== PIX_FMT_BGR32_1
)
2026 srcPtr
+= ALT32_CORR
;
2028 if (dstStride
[0]*srcBpp
== srcStride
[0]*dstBpp
&& srcStride
[0] > 0)
2029 conv(srcPtr
, dst
[0] + dstStride
[0]*srcSliceY
, srcSliceH
*srcStride
[0]);
2033 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2035 for (i
=0; i
<srcSliceH
; i
++)
2037 conv(srcPtr
, dstPtr
, c
->srcW
*srcBpp
);
2038 srcPtr
+= srcStride
[0];
2039 dstPtr
+= dstStride
[0];
2046 static int bgr24toyv12Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2047 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2051 dst
[0]+ srcSliceY
*dstStride
[0],
2052 dst
[1]+(srcSliceY
>>1)*dstStride
[1],
2053 dst
[2]+(srcSliceY
>>1)*dstStride
[2],
2055 dstStride
[0], dstStride
[1], srcStride
[0]);
2057 fillPlane(dst
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
2061 static int yvu9toyv12Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2062 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2066 if (srcStride
[0]==dstStride
[0] && srcStride
[0] > 0)
2067 memcpy(dst
[0]+ srcSliceY
*dstStride
[0], src
[0], srcStride
[0]*srcSliceH
);
2069 uint8_t *srcPtr
= src
[0];
2070 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2072 for (i
=0; i
<srcSliceH
; i
++)
2074 memcpy(dstPtr
, srcPtr
, c
->srcW
);
2075 srcPtr
+= srcStride
[0];
2076 dstPtr
+= dstStride
[0];
2080 if (c
->dstFormat
==PIX_FMT_YUV420P
|| c
->dstFormat
==PIX_FMT_YUVA420P
){
2081 planar2x(src
[1], dst
[1], c
->chrSrcW
, c
->chrSrcH
, srcStride
[1], dstStride
[1]);
2082 planar2x(src
[2], dst
[2], c
->chrSrcW
, c
->chrSrcH
, srcStride
[2], dstStride
[2]);
2084 planar2x(src
[1], dst
[2], c
->chrSrcW
, c
->chrSrcH
, srcStride
[1], dstStride
[2]);
2085 planar2x(src
[2], dst
[1], c
->chrSrcW
, c
->chrSrcH
, srcStride
[2], dstStride
[1]);
2088 fillPlane(dst
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
2092 /* unscaled copy like stuff (assumes nearly identical formats) */
2093 static int packedCopy(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2094 int srcSliceH
, uint8_t* dst
[], int dstStride
[])
2096 if (dstStride
[0]==srcStride
[0] && srcStride
[0] > 0)
2097 memcpy(dst
[0] + dstStride
[0]*srcSliceY
, src
[0], srcSliceH
*dstStride
[0]);
2101 uint8_t *srcPtr
= src
[0];
2102 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2105 /* universal length finder */
2106 while(length
+c
->srcW
<= FFABS(dstStride
[0])
2107 && length
+c
->srcW
<= FFABS(srcStride
[0])) length
+= c
->srcW
;
2110 for (i
=0; i
<srcSliceH
; i
++)
2112 memcpy(dstPtr
, srcPtr
, length
);
2113 srcPtr
+= srcStride
[0];
2114 dstPtr
+= dstStride
[0];
2120 static int planarCopy(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2121 int srcSliceH
, uint8_t* dst
[], int dstStride
[])
2124 for (plane
=0; plane
<4; plane
++)
2126 int length
= (plane
==0 || plane
==3) ? c
->srcW
: -((-c
->srcW
)>>c
->chrDstHSubSample
);
2127 int y
= (plane
==0 || plane
==3) ? srcSliceY
: -((-srcSliceY
)>>c
->chrDstVSubSample
);
2128 int height
= (plane
==0 || plane
==3) ? srcSliceH
: -((-srcSliceH
)>>c
->chrDstVSubSample
);
2130 if (!dst
[plane
]) continue;
2131 // ignore palette for GRAY8
2132 if (plane
== 1 && !dst
[2]) continue;
2133 if (!src
[plane
] || (plane
== 1 && !src
[2]))
2134 fillPlane(dst
[plane
], dstStride
[plane
], length
, height
, y
, (plane
==3) ? 255 : 128);
2137 if (dstStride
[plane
]==srcStride
[plane
] && srcStride
[plane
] > 0)
2138 memcpy(dst
[plane
] + dstStride
[plane
]*y
, src
[plane
], height
*dstStride
[plane
]);
2142 uint8_t *srcPtr
= src
[plane
];
2143 uint8_t *dstPtr
= dst
[plane
] + dstStride
[plane
]*y
;
2144 for (i
=0; i
<height
; i
++)
2146 memcpy(dstPtr
, srcPtr
, length
);
2147 srcPtr
+= srcStride
[plane
];
2148 dstPtr
+= dstStride
[plane
];
2156 static int gray16togray(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2157 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2159 int length
= c
->srcW
;
2161 int height
= srcSliceH
;
2163 uint8_t *srcPtr
= src
[0];
2164 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*y
;
2166 if (!isGray(c
->dstFormat
)){
2167 int height
= -((-srcSliceH
)>>c
->chrDstVSubSample
);
2168 memset(dst
[1], 128, dstStride
[1]*height
);
2169 memset(dst
[2], 128, dstStride
[2]*height
);
2171 if (c
->srcFormat
== PIX_FMT_GRAY16LE
) srcPtr
++;
2172 for (i
=0; i
<height
; i
++)
2174 for (j
=0; j
<length
; j
++) dstPtr
[j
] = srcPtr
[j
<<1];
2175 srcPtr
+= srcStride
[0];
2176 dstPtr
+= dstStride
[0];
2179 fillPlane(dst
[3], dstStride
[3], length
, height
, y
, 255);
2183 static int graytogray16(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2184 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2186 int length
= c
->srcW
;
2188 int height
= srcSliceH
;
2190 uint8_t *srcPtr
= src
[0];
2191 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*y
;
2192 for (i
=0; i
<height
; i
++)
2194 for (j
=0; j
<length
; j
++)
2196 dstPtr
[j
<<1] = srcPtr
[j
];
2197 dstPtr
[(j
<<1)+1] = srcPtr
[j
];
2199 srcPtr
+= srcStride
[0];
2200 dstPtr
+= dstStride
[0];
2205 static int gray16swap(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2206 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2208 int length
= c
->srcW
;
2210 int height
= srcSliceH
;
2212 uint16_t *srcPtr
= (uint16_t*)src
[0];
2213 uint16_t *dstPtr
= (uint16_t*)(dst
[0] + dstStride
[0]*y
/2);
2214 for (i
=0; i
<height
; i
++)
2216 for (j
=0; j
<length
; j
++) dstPtr
[j
] = bswap_16(srcPtr
[j
]);
2217 srcPtr
+= srcStride
[0]/2;
2218 dstPtr
+= dstStride
[0]/2;
2224 static void getSubSampleFactors(int *h
, int *v
, int format
){
2226 case PIX_FMT_UYVY422
:
2227 case PIX_FMT_YUYV422
:
2231 case PIX_FMT_YUV420P
:
2232 case PIX_FMT_YUVA420P
:
2233 case PIX_FMT_GRAY16BE
:
2234 case PIX_FMT_GRAY16LE
:
2235 case PIX_FMT_GRAY8
: //FIXME remove after different subsamplings are fully implemented
2241 case PIX_FMT_YUV440P
:
2245 case PIX_FMT_YUV410P
:
2249 case PIX_FMT_YUV444P
:
2253 case PIX_FMT_YUV422P
:
2257 case PIX_FMT_YUV411P
:
2268 static uint16_t roundToInt16(int64_t f
){
2269 int r
= (f
+ (1<<15))>>16;
2270 if (r
<-0x7FFF) return 0x8000;
2271 else if (r
> 0x7FFF) return 0x7FFF;
2276 * @param inv_table the yuv2rgb coefficients, normally ff_yuv2rgb_coeffs[x]
2277 * @param fullRange if 1 then the luma range is 0..255 if 0 it is 16..235
2278 * @return -1 if not supported
2280 int sws_setColorspaceDetails(SwsContext
*c
, const int inv_table
[4], int srcRange
, const int table
[4], int dstRange
, int brightness
, int contrast
, int saturation
){
2281 int64_t crv
= inv_table
[0];
2282 int64_t cbu
= inv_table
[1];
2283 int64_t cgu
= -inv_table
[2];
2284 int64_t cgv
= -inv_table
[3];
2288 memcpy(c
->srcColorspaceTable
, inv_table
, sizeof(int)*4);
2289 memcpy(c
->dstColorspaceTable
, table
, sizeof(int)*4);
2291 c
->brightness
= brightness
;
2292 c
->contrast
= contrast
;
2293 c
->saturation
= saturation
;
2294 c
->srcRange
= srcRange
;
2295 c
->dstRange
= dstRange
;
2296 if (isYUV(c
->dstFormat
) || isGray(c
->dstFormat
)) return 0;
2298 c
->uOffset
= 0x0400040004000400LL
;
2299 c
->vOffset
= 0x0400040004000400LL
;
2305 crv
= (crv
*224) / 255;
2306 cbu
= (cbu
*224) / 255;
2307 cgu
= (cgu
*224) / 255;
2308 cgv
= (cgv
*224) / 255;
2311 cy
= (cy
*contrast
)>>16;
2312 crv
= (crv
*contrast
* saturation
)>>32;
2313 cbu
= (cbu
*contrast
* saturation
)>>32;
2314 cgu
= (cgu
*contrast
* saturation
)>>32;
2315 cgv
= (cgv
*contrast
* saturation
)>>32;
2317 oy
-= 256*brightness
;
2319 c
->yCoeff
= roundToInt16(cy
*8192) * 0x0001000100010001ULL
;
2320 c
->vrCoeff
= roundToInt16(crv
*8192) * 0x0001000100010001ULL
;
2321 c
->ubCoeff
= roundToInt16(cbu
*8192) * 0x0001000100010001ULL
;
2322 c
->vgCoeff
= roundToInt16(cgv
*8192) * 0x0001000100010001ULL
;
2323 c
->ugCoeff
= roundToInt16(cgu
*8192) * 0x0001000100010001ULL
;
2324 c
->yOffset
= roundToInt16(oy
* 8) * 0x0001000100010001ULL
;
2326 c
->yuv2rgb_y_coeff
= (int16_t)roundToInt16(cy
<<13);
2327 c
->yuv2rgb_y_offset
= (int16_t)roundToInt16(oy
<< 9);
2328 c
->yuv2rgb_v2r_coeff
= (int16_t)roundToInt16(crv
<<13);
2329 c
->yuv2rgb_v2g_coeff
= (int16_t)roundToInt16(cgv
<<13);
2330 c
->yuv2rgb_u2g_coeff
= (int16_t)roundToInt16(cgu
<<13);
2331 c
->yuv2rgb_u2b_coeff
= (int16_t)roundToInt16(cbu
<<13);
2333 ff_yuv2rgb_c_init_tables(c
, inv_table
, srcRange
, brightness
, contrast
, saturation
);
2336 #ifdef COMPILE_ALTIVEC
2337 if (c
->flags
& SWS_CPU_CAPS_ALTIVEC
)
2338 ff_yuv2rgb_init_tables_altivec(c
, inv_table
, brightness
, contrast
, saturation
);
2344 * @return -1 if not supported
2346 int sws_getColorspaceDetails(SwsContext
*c
, int **inv_table
, int *srcRange
, int **table
, int *dstRange
, int *brightness
, int *contrast
, int *saturation
){
2347 if (isYUV(c
->dstFormat
) || isGray(c
->dstFormat
)) return -1;
2349 *inv_table
= c
->srcColorspaceTable
;
2350 *table
= c
->dstColorspaceTable
;
2351 *srcRange
= c
->srcRange
;
2352 *dstRange
= c
->dstRange
;
2353 *brightness
= c
->brightness
;
2354 *contrast
= c
->contrast
;
2355 *saturation
= c
->saturation
;
2360 static int handle_jpeg(enum PixelFormat
*format
)
2363 case PIX_FMT_YUVJ420P
:
2364 *format
= PIX_FMT_YUV420P
;
2366 case PIX_FMT_YUVJ422P
:
2367 *format
= PIX_FMT_YUV422P
;
2369 case PIX_FMT_YUVJ444P
:
2370 *format
= PIX_FMT_YUV444P
;
2372 case PIX_FMT_YUVJ440P
:
2373 *format
= PIX_FMT_YUV440P
;
2380 SwsContext
*sws_getContext(int srcW
, int srcH
, enum PixelFormat srcFormat
, int dstW
, int dstH
, enum PixelFormat dstFormat
, int flags
,
2381 SwsFilter
*srcFilter
, SwsFilter
*dstFilter
, double *param
){
2385 int usesVFilter
, usesHFilter
;
2386 int unscaled
, needsDither
;
2387 int srcRange
, dstRange
;
2388 SwsFilter dummyFilter
= {NULL
, NULL
, NULL
, NULL
};
2390 if (flags
& SWS_CPU_CAPS_MMX
)
2391 __asm__
volatile("emms\n\t"::: "memory");
2394 #if !defined(RUNTIME_CPUDETECT) || !CONFIG_GPL //ensure that the flags match the compiled variant if cpudetect is off
2395 flags
&= ~(SWS_CPU_CAPS_MMX
|SWS_CPU_CAPS_MMX2
|SWS_CPU_CAPS_3DNOW
|SWS_CPU_CAPS_ALTIVEC
|SWS_CPU_CAPS_BFIN
);
2397 flags
|= SWS_CPU_CAPS_MMX
|SWS_CPU_CAPS_MMX2
;
2399 flags
|= SWS_CPU_CAPS_MMX
|SWS_CPU_CAPS_3DNOW
;
2401 flags
|= SWS_CPU_CAPS_MMX
;
2403 flags
|= SWS_CPU_CAPS_ALTIVEC
;
2405 flags
|= SWS_CPU_CAPS_BFIN
;
2407 #endif /* RUNTIME_CPUDETECT */
2408 if (clip_table
[512] != 255) globalInit();
2409 if (!rgb15to16
) sws_rgb2rgb_init(flags
);
2411 unscaled
= (srcW
== dstW
&& srcH
== dstH
);
2412 needsDither
= (isBGR(dstFormat
) || isRGB(dstFormat
))
2413 && (fmt_depth(dstFormat
))<24
2414 && ((fmt_depth(dstFormat
))<(fmt_depth(srcFormat
)) || (!(isRGB(srcFormat
) || isBGR(srcFormat
))));
2416 srcRange
= handle_jpeg(&srcFormat
);
2417 dstRange
= handle_jpeg(&dstFormat
);
2419 if (!isSupportedIn(srcFormat
))
2421 av_log(NULL
, AV_LOG_ERROR
, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat
));
2424 if (!isSupportedOut(dstFormat
))
2426 av_log(NULL
, AV_LOG_ERROR
, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat
));
2430 i
= flags
& ( SWS_POINT
2441 if(!i
|| (i
& (i
-1)))
2443 av_log(NULL
, AV_LOG_ERROR
, "swScaler: Exactly one scaler algorithm must be chosen\n");
2448 if (srcW
<4 || srcH
<1 || dstW
<8 || dstH
<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
2450 av_log(NULL
, AV_LOG_ERROR
, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
2451 srcW
, srcH
, dstW
, dstH
);
2454 if(srcW
> VOFW
|| dstW
> VOFW
){
2455 av_log(NULL
, AV_LOG_ERROR
, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW
)" change VOF/VOFW and recompile\n");
2459 if (!dstFilter
) dstFilter
= &dummyFilter
;
2460 if (!srcFilter
) srcFilter
= &dummyFilter
;
2462 c
= av_mallocz(sizeof(SwsContext
));
2464 c
->av_class
= &sws_context_class
;
2469 c
->lumXInc
= ((srcW
<<16) + (dstW
>>1))/dstW
;
2470 c
->lumYInc
= ((srcH
<<16) + (dstH
>>1))/dstH
;
2472 c
->dstFormat
= dstFormat
;
2473 c
->srcFormat
= srcFormat
;
2474 c
->vRounder
= 4* 0x0001000100010001ULL
;
2476 usesHFilter
= usesVFilter
= 0;
2477 if (dstFilter
->lumV
&& dstFilter
->lumV
->length
>1) usesVFilter
=1;
2478 if (dstFilter
->lumH
&& dstFilter
->lumH
->length
>1) usesHFilter
=1;
2479 if (dstFilter
->chrV
&& dstFilter
->chrV
->length
>1) usesVFilter
=1;
2480 if (dstFilter
->chrH
&& dstFilter
->chrH
->length
>1) usesHFilter
=1;
2481 if (srcFilter
->lumV
&& srcFilter
->lumV
->length
>1) usesVFilter
=1;
2482 if (srcFilter
->lumH
&& srcFilter
->lumH
->length
>1) usesHFilter
=1;
2483 if (srcFilter
->chrV
&& srcFilter
->chrV
->length
>1) usesVFilter
=1;
2484 if (srcFilter
->chrH
&& srcFilter
->chrH
->length
>1) usesHFilter
=1;
2486 getSubSampleFactors(&c
->chrSrcHSubSample
, &c
->chrSrcVSubSample
, srcFormat
);
2487 getSubSampleFactors(&c
->chrDstHSubSample
, &c
->chrDstVSubSample
, dstFormat
);
2489 // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
2490 if ((isBGR(dstFormat
) || isRGB(dstFormat
)) && !(flags
&SWS_FULL_CHR_H_INT
)) c
->chrDstHSubSample
=1;
2492 // drop some chroma lines if the user wants it
2493 c
->vChrDrop
= (flags
&SWS_SRC_V_CHR_DROP_MASK
)>>SWS_SRC_V_CHR_DROP_SHIFT
;
2494 c
->chrSrcVSubSample
+= c
->vChrDrop
;
2496 // drop every other pixel for chroma calculation unless user wants full chroma
2497 if ((isBGR(srcFormat
) || isRGB(srcFormat
)) && !(flags
&SWS_FULL_CHR_H_INP
)
2498 && srcFormat
!=PIX_FMT_RGB8
&& srcFormat
!=PIX_FMT_BGR8
2499 && srcFormat
!=PIX_FMT_RGB4
&& srcFormat
!=PIX_FMT_BGR4
2500 && srcFormat
!=PIX_FMT_RGB4_BYTE
&& srcFormat
!=PIX_FMT_BGR4_BYTE
2501 && ((dstW
>>c
->chrDstHSubSample
) <= (srcW
>>1) || (flags
&(SWS_FAST_BILINEAR
|SWS_POINT
))))
2502 c
->chrSrcHSubSample
=1;
2505 c
->param
[0] = param
[0];
2506 c
->param
[1] = param
[1];
2509 c
->param
[1] = SWS_PARAM_DEFAULT
;
2512 c
->chrIntHSubSample
= c
->chrDstHSubSample
;
2513 c
->chrIntVSubSample
= c
->chrSrcVSubSample
;
2515 // Note the -((-x)>>y) is so that we always round toward +inf.
2516 c
->chrSrcW
= -((-srcW
) >> c
->chrSrcHSubSample
);
2517 c
->chrSrcH
= -((-srcH
) >> c
->chrSrcVSubSample
);
2518 c
->chrDstW
= -((-dstW
) >> c
->chrDstHSubSample
);
2519 c
->chrDstH
= -((-dstH
) >> c
->chrDstVSubSample
);
2521 sws_setColorspaceDetails(c
, ff_yuv2rgb_coeffs
[SWS_CS_DEFAULT
], srcRange
, ff_yuv2rgb_coeffs
[SWS_CS_DEFAULT
] /* FIXME*/, dstRange
, 0, 1<<16, 1<<16);
2523 /* unscaled special cases */
2524 if (unscaled
&& !usesHFilter
&& !usesVFilter
&& (srcRange
== dstRange
|| isBGR(dstFormat
) || isRGB(dstFormat
)))
2527 if ((srcFormat
== PIX_FMT_YUV420P
|| srcFormat
== PIX_FMT_YUVA420P
) && (dstFormat
== PIX_FMT_NV12
|| dstFormat
== PIX_FMT_NV21
))
2529 c
->swScale
= PlanarToNV12Wrapper
;
2532 if ((srcFormat
==PIX_FMT_YUV420P
|| srcFormat
==PIX_FMT_YUV422P
|| srcFormat
==PIX_FMT_YUVA420P
) && (isBGR(dstFormat
) || isRGB(dstFormat
))
2533 && !(flags
& SWS_ACCURATE_RND
) && !(dstH
&1))
2535 c
->swScale
= ff_yuv2rgb_get_func_ptr(c
);
2538 if (srcFormat
==PIX_FMT_YUV410P
&& (dstFormat
==PIX_FMT_YUV420P
|| dstFormat
==PIX_FMT_YUVA420P
) && !(flags
& SWS_BITEXACT
))
2540 c
->swScale
= yvu9toyv12Wrapper
;
2544 if (srcFormat
==PIX_FMT_BGR24
&& (dstFormat
==PIX_FMT_YUV420P
|| dstFormat
==PIX_FMT_YUVA420P
) && !(flags
& SWS_ACCURATE_RND
))
2545 c
->swScale
= bgr24toyv12Wrapper
;
2547 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
2548 if ( (isBGR(srcFormat
) || isRGB(srcFormat
))
2549 && (isBGR(dstFormat
) || isRGB(dstFormat
))
2550 && srcFormat
!= PIX_FMT_BGR8
&& dstFormat
!= PIX_FMT_BGR8
2551 && srcFormat
!= PIX_FMT_RGB8
&& dstFormat
!= PIX_FMT_RGB8
2552 && srcFormat
!= PIX_FMT_BGR4
&& dstFormat
!= PIX_FMT_BGR4
2553 && srcFormat
!= PIX_FMT_RGB4
&& dstFormat
!= PIX_FMT_RGB4
2554 && srcFormat
!= PIX_FMT_BGR4_BYTE
&& dstFormat
!= PIX_FMT_BGR4_BYTE
2555 && srcFormat
!= PIX_FMT_RGB4_BYTE
&& dstFormat
!= PIX_FMT_RGB4_BYTE
2556 && srcFormat
!= PIX_FMT_MONOBLACK
&& dstFormat
!= PIX_FMT_MONOBLACK
2557 && srcFormat
!= PIX_FMT_MONOWHITE
&& dstFormat
!= PIX_FMT_MONOWHITE
2558 && dstFormat
!= PIX_FMT_RGB32_1
2559 && dstFormat
!= PIX_FMT_BGR32_1
2560 && (!needsDither
|| (c
->flags
&(SWS_FAST_BILINEAR
|SWS_POINT
))))
2561 c
->swScale
= rgb2rgbWrapper
;
2563 if ((usePal(srcFormat
) && (
2564 dstFormat
== PIX_FMT_RGB32
||
2565 dstFormat
== PIX_FMT_RGB32_1
||
2566 dstFormat
== PIX_FMT_RGB24
||
2567 dstFormat
== PIX_FMT_BGR32
||
2568 dstFormat
== PIX_FMT_BGR32_1
||
2569 dstFormat
== PIX_FMT_BGR24
)))
2570 c
->swScale
= pal2rgbWrapper
;
2572 if (srcFormat
== PIX_FMT_YUV422P
)
2574 if (dstFormat
== PIX_FMT_YUYV422
)
2575 c
->swScale
= YUV422PToYuy2Wrapper
;
2576 else if (dstFormat
== PIX_FMT_UYVY422
)
2577 c
->swScale
= YUV422PToUyvyWrapper
;
2580 /* LQ converters if -sws 0 or -sws 4*/
2581 if (c
->flags
&(SWS_FAST_BILINEAR
|SWS_POINT
)){
2583 if (srcFormat
== PIX_FMT_YUV420P
|| srcFormat
== PIX_FMT_YUVA420P
)
2585 if (dstFormat
== PIX_FMT_YUYV422
)
2586 c
->swScale
= PlanarToYuy2Wrapper
;
2587 else if (dstFormat
== PIX_FMT_UYVY422
)
2588 c
->swScale
= PlanarToUyvyWrapper
;
2591 if(srcFormat
== PIX_FMT_YUYV422
&& (dstFormat
== PIX_FMT_YUV420P
|| dstFormat
== PIX_FMT_YUVA420P
))
2592 c
->swScale
= YUYV2YUV420Wrapper
;
2593 if(srcFormat
== PIX_FMT_UYVY422
&& (dstFormat
== PIX_FMT_YUV420P
|| dstFormat
== PIX_FMT_YUVA420P
))
2594 c
->swScale
= UYVY2YUV420Wrapper
;
2595 if(srcFormat
== PIX_FMT_YUYV422
&& dstFormat
== PIX_FMT_YUV422P
)
2596 c
->swScale
= YUYV2YUV422Wrapper
;
2597 if(srcFormat
== PIX_FMT_UYVY422
&& dstFormat
== PIX_FMT_YUV422P
)
2598 c
->swScale
= UYVY2YUV422Wrapper
;
2600 #ifdef COMPILE_ALTIVEC
2601 if ((c
->flags
& SWS_CPU_CAPS_ALTIVEC
) &&
2602 !(c
->flags
& SWS_BITEXACT
) &&
2603 srcFormat
== PIX_FMT_YUV420P
) {
2604 // unscaled YV12 -> packed YUV, we want speed
2605 if (dstFormat
== PIX_FMT_YUYV422
)
2606 c
->swScale
= yv12toyuy2_unscaled_altivec
;
2607 else if (dstFormat
== PIX_FMT_UYVY422
)
2608 c
->swScale
= yv12touyvy_unscaled_altivec
;
2613 if ( srcFormat
== dstFormat
2614 || (srcFormat
== PIX_FMT_YUVA420P
&& dstFormat
== PIX_FMT_YUV420P
)
2615 || (srcFormat
== PIX_FMT_YUV420P
&& dstFormat
== PIX_FMT_YUVA420P
)
2616 || (isPlanarYUV(srcFormat
) && isGray(dstFormat
))
2617 || (isPlanarYUV(dstFormat
) && isGray(srcFormat
)))
2619 if (isPacked(c
->srcFormat
))
2620 c
->swScale
= packedCopy
;
2621 else /* Planar YUV or gray */
2622 c
->swScale
= planarCopy
;
2625 /* gray16{le,be} conversions */
2626 if (isGray16(srcFormat
) && (isPlanarYUV(dstFormat
) || (dstFormat
== PIX_FMT_GRAY8
)))
2628 c
->swScale
= gray16togray
;
2630 if ((isPlanarYUV(srcFormat
) || (srcFormat
== PIX_FMT_GRAY8
)) && isGray16(dstFormat
))
2632 c
->swScale
= graytogray16
;
2634 if (srcFormat
!= dstFormat
&& isGray16(srcFormat
) && isGray16(dstFormat
))
2636 c
->swScale
= gray16swap
;
2640 if (flags
& SWS_CPU_CAPS_BFIN
)
2641 ff_bfin_get_unscaled_swscale (c
);
2645 if (flags
&SWS_PRINT_INFO
)
2646 av_log(c
, AV_LOG_INFO
, "using unscaled %s -> %s special converter\n",
2647 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
2652 if (flags
& SWS_CPU_CAPS_MMX2
)
2654 c
->canMMX2BeUsed
= (dstW
>=srcW
&& (dstW
&31)==0 && (srcW
&15)==0) ? 1 : 0;
2655 if (!c
->canMMX2BeUsed
&& dstW
>=srcW
&& (srcW
&15)==0 && (flags
&SWS_FAST_BILINEAR
))
2657 if (flags
&SWS_PRINT_INFO
)
2658 av_log(c
, AV_LOG_INFO
, "output width is not a multiple of 32 -> no MMX2 scaler\n");
2660 if (usesHFilter
) c
->canMMX2BeUsed
=0;
2665 c
->chrXInc
= ((c
->chrSrcW
<<16) + (c
->chrDstW
>>1))/c
->chrDstW
;
2666 c
->chrYInc
= ((c
->chrSrcH
<<16) + (c
->chrDstH
>>1))/c
->chrDstH
;
2668 // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
2669 // but only for the FAST_BILINEAR mode otherwise do correct scaling
2670 // n-2 is the last chrominance sample available
2671 // this is not perfect, but no one should notice the difference, the more correct variant
2672 // would be like the vertical one, but that would require some special code for the
2673 // first and last pixel
2674 if (flags
&SWS_FAST_BILINEAR
)
2676 if (c
->canMMX2BeUsed
)
2681 //we don't use the x86 asm scaler if MMX is available
2682 else if (flags
& SWS_CPU_CAPS_MMX
)
2684 c
->lumXInc
= ((srcW
-2)<<16)/(dstW
-2) - 20;
2685 c
->chrXInc
= ((c
->chrSrcW
-2)<<16)/(c
->chrDstW
-2) - 20;
2689 /* precalculate horizontal scaler filter coefficients */
2691 const int filterAlign
=
2692 (flags
& SWS_CPU_CAPS_MMX
) ? 4 :
2693 (flags
& SWS_CPU_CAPS_ALTIVEC
) ? 8 :
2696 initFilter(&c
->hLumFilter
, &c
->hLumFilterPos
, &c
->hLumFilterSize
, c
->lumXInc
,
2697 srcW
, dstW
, filterAlign
, 1<<14,
2698 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BICUBIC
) : flags
,
2699 srcFilter
->lumH
, dstFilter
->lumH
, c
->param
);
2700 initFilter(&c
->hChrFilter
, &c
->hChrFilterPos
, &c
->hChrFilterSize
, c
->chrXInc
,
2701 c
->chrSrcW
, c
->chrDstW
, filterAlign
, 1<<14,
2702 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BILINEAR
) : flags
,
2703 srcFilter
->chrH
, dstFilter
->chrH
, c
->param
);
2705 #define MAX_FUNNY_CODE_SIZE 10000
2706 #if defined(COMPILE_MMX2)
2707 // can't downscale !!!
2708 if (c
->canMMX2BeUsed
&& (flags
& SWS_FAST_BILINEAR
))
2710 #ifdef MAP_ANONYMOUS
2711 c
->funnyYCode
= mmap(NULL
, MAX_FUNNY_CODE_SIZE
, PROT_EXEC
| PROT_READ
| PROT_WRITE
, MAP_PRIVATE
| MAP_ANONYMOUS
, 0, 0);
2712 c
->funnyUVCode
= mmap(NULL
, MAX_FUNNY_CODE_SIZE
, PROT_EXEC
| PROT_READ
| PROT_WRITE
, MAP_PRIVATE
| MAP_ANONYMOUS
, 0, 0);
2713 #elif HAVE_VIRTUALALLOC
2714 c
->funnyYCode
= VirtualAlloc(NULL
, MAX_FUNNY_CODE_SIZE
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
);
2715 c
->funnyUVCode
= VirtualAlloc(NULL
, MAX_FUNNY_CODE_SIZE
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
);
2717 c
->funnyYCode
= av_malloc(MAX_FUNNY_CODE_SIZE
);
2718 c
->funnyUVCode
= av_malloc(MAX_FUNNY_CODE_SIZE
);
2721 c
->lumMmx2Filter
= av_malloc((dstW
/8+8)*sizeof(int16_t));
2722 c
->chrMmx2Filter
= av_malloc((c
->chrDstW
/4+8)*sizeof(int16_t));
2723 c
->lumMmx2FilterPos
= av_malloc((dstW
/2/8+8)*sizeof(int32_t));
2724 c
->chrMmx2FilterPos
= av_malloc((c
->chrDstW
/2/4+8)*sizeof(int32_t));
2726 initMMX2HScaler( dstW
, c
->lumXInc
, c
->funnyYCode
, c
->lumMmx2Filter
, c
->lumMmx2FilterPos
, 8);
2727 initMMX2HScaler(c
->chrDstW
, c
->chrXInc
, c
->funnyUVCode
, c
->chrMmx2Filter
, c
->chrMmx2FilterPos
, 4);
2729 #endif /* defined(COMPILE_MMX2) */
2730 } // initialize horizontal stuff
2734 /* precalculate vertical scaler filter coefficients */
2736 const int filterAlign
=
2737 (flags
& SWS_CPU_CAPS_MMX
) && (flags
& SWS_ACCURATE_RND
) ? 2 :
2738 (flags
& SWS_CPU_CAPS_ALTIVEC
) ? 8 :
2741 initFilter(&c
->vLumFilter
, &c
->vLumFilterPos
, &c
->vLumFilterSize
, c
->lumYInc
,
2742 srcH
, dstH
, filterAlign
, (1<<12),
2743 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BICUBIC
) : flags
,
2744 srcFilter
->lumV
, dstFilter
->lumV
, c
->param
);
2745 initFilter(&c
->vChrFilter
, &c
->vChrFilterPos
, &c
->vChrFilterSize
, c
->chrYInc
,
2746 c
->chrSrcH
, c
->chrDstH
, filterAlign
, (1<<12),
2747 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BILINEAR
) : flags
,
2748 srcFilter
->chrV
, dstFilter
->chrV
, c
->param
);
2751 c
->vYCoeffsBank
= av_malloc(sizeof (vector
signed short)*c
->vLumFilterSize
*c
->dstH
);
2752 c
->vCCoeffsBank
= av_malloc(sizeof (vector
signed short)*c
->vChrFilterSize
*c
->chrDstH
);
2754 for (i
=0;i
<c
->vLumFilterSize
*c
->dstH
;i
++) {
2756 short *p
= (short *)&c
->vYCoeffsBank
[i
];
2758 p
[j
] = c
->vLumFilter
[i
];
2761 for (i
=0;i
<c
->vChrFilterSize
*c
->chrDstH
;i
++) {
2763 short *p
= (short *)&c
->vCCoeffsBank
[i
];
2765 p
[j
] = c
->vChrFilter
[i
];
2770 // calculate buffer sizes so that they won't run out while handling these damn slices
2771 c
->vLumBufSize
= c
->vLumFilterSize
;
2772 c
->vChrBufSize
= c
->vChrFilterSize
;
2773 for (i
=0; i
<dstH
; i
++)
2775 int chrI
= i
*c
->chrDstH
/ dstH
;
2776 int nextSlice
= FFMAX(c
->vLumFilterPos
[i
] + c
->vLumFilterSize
- 1,
2777 ((c
->vChrFilterPos
[chrI
] + c
->vChrFilterSize
- 1)<<c
->chrSrcVSubSample
));
2779 nextSlice
>>= c
->chrSrcVSubSample
;
2780 nextSlice
<<= c
->chrSrcVSubSample
;
2781 if (c
->vLumFilterPos
[i
] + c
->vLumBufSize
< nextSlice
)
2782 c
->vLumBufSize
= nextSlice
- c
->vLumFilterPos
[i
];
2783 if (c
->vChrFilterPos
[chrI
] + c
->vChrBufSize
< (nextSlice
>>c
->chrSrcVSubSample
))
2784 c
->vChrBufSize
= (nextSlice
>>c
->chrSrcVSubSample
) - c
->vChrFilterPos
[chrI
];
2787 // allocate pixbufs (we use dynamic allocation because otherwise we would need to
2788 c
->lumPixBuf
= av_malloc(c
->vLumBufSize
*2*sizeof(int16_t*));
2789 c
->chrPixBuf
= av_malloc(c
->vChrBufSize
*2*sizeof(int16_t*));
2790 if (CONFIG_SWSCALE_ALPHA
&& isALPHA(c
->srcFormat
) && isALPHA(c
->dstFormat
))
2791 c
->alpPixBuf
= av_malloc(c
->vLumBufSize
*2*sizeof(int16_t*));
2792 //Note we need at least one pixel more at the end because of the MMX code (just in case someone wanna replace the 4000/8000)
2793 /* align at 16 bytes for AltiVec */
2794 for (i
=0; i
<c
->vLumBufSize
; i
++)
2795 c
->lumPixBuf
[i
]= c
->lumPixBuf
[i
+c
->vLumBufSize
]= av_mallocz(VOF
+1);
2796 for (i
=0; i
<c
->vChrBufSize
; i
++)
2797 c
->chrPixBuf
[i
]= c
->chrPixBuf
[i
+c
->vChrBufSize
]= av_malloc((VOF
+1)*2);
2798 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
)
2799 for (i
=0; i
<c
->vLumBufSize
; i
++)
2800 c
->alpPixBuf
[i
]= c
->alpPixBuf
[i
+c
->vLumBufSize
]= av_mallocz(VOF
+1);
2802 //try to avoid drawing green stuff between the right end and the stride end
2803 for (i
=0; i
<c
->vChrBufSize
; i
++) memset(c
->chrPixBuf
[i
], 64, (VOF
+1)*2);
2805 assert(2*VOFW
== VOF
);
2807 assert(c
->chrDstH
<= dstH
);
2809 if (flags
&SWS_PRINT_INFO
)
2812 const char *dither
= " dithered";
2814 const char *dither
= "";
2816 if (flags
&SWS_FAST_BILINEAR
)
2817 av_log(c
, AV_LOG_INFO
, "FAST_BILINEAR scaler, ");
2818 else if (flags
&SWS_BILINEAR
)
2819 av_log(c
, AV_LOG_INFO
, "BILINEAR scaler, ");
2820 else if (flags
&SWS_BICUBIC
)
2821 av_log(c
, AV_LOG_INFO
, "BICUBIC scaler, ");
2822 else if (flags
&SWS_X
)
2823 av_log(c
, AV_LOG_INFO
, "Experimental scaler, ");
2824 else if (flags
&SWS_POINT
)
2825 av_log(c
, AV_LOG_INFO
, "Nearest Neighbor / POINT scaler, ");
2826 else if (flags
&SWS_AREA
)
2827 av_log(c
, AV_LOG_INFO
, "Area Averageing scaler, ");
2828 else if (flags
&SWS_BICUBLIN
)
2829 av_log(c
, AV_LOG_INFO
, "luma BICUBIC / chroma BILINEAR scaler, ");
2830 else if (flags
&SWS_GAUSS
)
2831 av_log(c
, AV_LOG_INFO
, "Gaussian scaler, ");
2832 else if (flags
&SWS_SINC
)
2833 av_log(c
, AV_LOG_INFO
, "Sinc scaler, ");
2834 else if (flags
&SWS_LANCZOS
)
2835 av_log(c
, AV_LOG_INFO
, "Lanczos scaler, ");
2836 else if (flags
&SWS_SPLINE
)
2837 av_log(c
, AV_LOG_INFO
, "Bicubic spline scaler, ");
2839 av_log(c
, AV_LOG_INFO
, "ehh flags invalid?! ");
2841 if (dstFormat
==PIX_FMT_BGR555
|| dstFormat
==PIX_FMT_BGR565
)
2842 av_log(c
, AV_LOG_INFO
, "from %s to%s %s ",
2843 sws_format_name(srcFormat
), dither
, sws_format_name(dstFormat
));
2845 av_log(c
, AV_LOG_INFO
, "from %s to %s ",
2846 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
2848 if (flags
& SWS_CPU_CAPS_MMX2
)
2849 av_log(c
, AV_LOG_INFO
, "using MMX2\n");
2850 else if (flags
& SWS_CPU_CAPS_3DNOW
)
2851 av_log(c
, AV_LOG_INFO
, "using 3DNOW\n");
2852 else if (flags
& SWS_CPU_CAPS_MMX
)
2853 av_log(c
, AV_LOG_INFO
, "using MMX\n");
2854 else if (flags
& SWS_CPU_CAPS_ALTIVEC
)
2855 av_log(c
, AV_LOG_INFO
, "using AltiVec\n");
2857 av_log(c
, AV_LOG_INFO
, "using C\n");
2860 if (flags
& SWS_PRINT_INFO
)
2862 if (flags
& SWS_CPU_CAPS_MMX
)
2864 if (c
->canMMX2BeUsed
&& (flags
&SWS_FAST_BILINEAR
))
2865 av_log(c
, AV_LOG_VERBOSE
, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
2868 if (c
->hLumFilterSize
==4)
2869 av_log(c
, AV_LOG_VERBOSE
, "using 4-tap MMX scaler for horizontal luminance scaling\n");
2870 else if (c
->hLumFilterSize
==8)
2871 av_log(c
, AV_LOG_VERBOSE
, "using 8-tap MMX scaler for horizontal luminance scaling\n");
2873 av_log(c
, AV_LOG_VERBOSE
, "using n-tap MMX scaler for horizontal luminance scaling\n");
2875 if (c
->hChrFilterSize
==4)
2876 av_log(c
, AV_LOG_VERBOSE
, "using 4-tap MMX scaler for horizontal chrominance scaling\n");
2877 else if (c
->hChrFilterSize
==8)
2878 av_log(c
, AV_LOG_VERBOSE
, "using 8-tap MMX scaler for horizontal chrominance scaling\n");
2880 av_log(c
, AV_LOG_VERBOSE
, "using n-tap MMX scaler for horizontal chrominance scaling\n");
2886 av_log(c
, AV_LOG_VERBOSE
, "using x86 asm scaler for horizontal scaling\n");
2888 if (flags
& SWS_FAST_BILINEAR
)
2889 av_log(c
, AV_LOG_VERBOSE
, "using FAST_BILINEAR C scaler for horizontal scaling\n");
2891 av_log(c
, AV_LOG_VERBOSE
, "using C scaler for horizontal scaling\n");
2894 if (isPlanarYUV(dstFormat
))
2896 if (c
->vLumFilterSize
==1)
2897 av_log(c
, AV_LOG_VERBOSE
, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2899 av_log(c
, AV_LOG_VERBOSE
, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2903 if (c
->vLumFilterSize
==1 && c
->vChrFilterSize
==2)
2904 av_log(c
, AV_LOG_VERBOSE
, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
2905 " 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2906 else if (c
->vLumFilterSize
==2 && c
->vChrFilterSize
==2)
2907 av_log(c
, AV_LOG_VERBOSE
, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2909 av_log(c
, AV_LOG_VERBOSE
, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2912 if (dstFormat
==PIX_FMT_BGR24
)
2913 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR24 converter\n",
2914 (flags
& SWS_CPU_CAPS_MMX2
) ? "MMX2" : ((flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C"));
2915 else if (dstFormat
==PIX_FMT_RGB32
)
2916 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR32 converter\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2917 else if (dstFormat
==PIX_FMT_BGR565
)
2918 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR16 converter\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2919 else if (dstFormat
==PIX_FMT_BGR555
)
2920 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR15 converter\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
2922 av_log(c
, AV_LOG_VERBOSE
, "%dx%d -> %dx%d\n", srcW
, srcH
, dstW
, dstH
);
2924 if (flags
& SWS_PRINT_INFO
)
2926 av_log(c
, AV_LOG_DEBUG
, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
2927 c
->srcW
, c
->srcH
, c
->dstW
, c
->dstH
, c
->lumXInc
, c
->lumYInc
);
2928 av_log(c
, AV_LOG_DEBUG
, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
2929 c
->chrSrcW
, c
->chrSrcH
, c
->chrDstW
, c
->chrDstH
, c
->chrXInc
, c
->chrYInc
);
2932 c
->swScale
= getSwsFunc(flags
);
2937 * swscale wrapper, so we don't need to export the SwsContext.
2938 * Assumes planar YUV to be in YUV order instead of YVU.
2940 int sws_scale(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2941 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2943 uint8_t* src2
[4]= {src
[0], src
[1], src
[2], src
[3]};
2945 if (c
->sliceDir
== 0 && srcSliceY
!= 0 && srcSliceY
+ srcSliceH
!= c
->srcH
) {
2946 av_log(c
, AV_LOG_ERROR
, "Slices start in the middle!\n");
2949 if (c
->sliceDir
== 0) {
2950 if (srcSliceY
== 0) c
->sliceDir
= 1; else c
->sliceDir
= -1;
2953 if (usePal(c
->srcFormat
)){
2954 for (i
=0; i
<256; i
++){
2955 int p
, r
, g
, b
,y
,u
,v
;
2956 if(c
->srcFormat
== PIX_FMT_PAL8
){
2957 p
=((uint32_t*)(src
[1]))[i
];
2961 }else if(c
->srcFormat
== PIX_FMT_RGB8
){
2965 }else if(c
->srcFormat
== PIX_FMT_BGR8
){
2969 }else if(c
->srcFormat
== PIX_FMT_RGB4_BYTE
){
2974 assert(c
->srcFormat
== PIX_FMT_BGR4_BYTE
);
2979 y
= av_clip_uint8((RY
*r
+ GY
*g
+ BY
*b
+ ( 33<<(RGB2YUV_SHIFT
-1)))>>RGB2YUV_SHIFT
);
2980 u
= av_clip_uint8((RU
*r
+ GU
*g
+ BU
*b
+ (257<<(RGB2YUV_SHIFT
-1)))>>RGB2YUV_SHIFT
);
2981 v
= av_clip_uint8((RV
*r
+ GV
*g
+ BV
*b
+ (257<<(RGB2YUV_SHIFT
-1)))>>RGB2YUV_SHIFT
);
2982 c
->pal_yuv
[i
]= y
+ (u
<<8) + (v
<<16);
2985 switch(c
->dstFormat
) {
2987 #ifndef WORDS_BIGENDIAN
2990 c
->pal_rgb
[i
]= r
+ (g
<<8) + (b
<<16);
2992 case PIX_FMT_BGR32_1
:
2993 #ifdef WORDS_BIGENDIAN
2996 c
->pal_rgb
[i
]= (r
+ (g
<<8) + (b
<<16)) << 8;
2998 case PIX_FMT_RGB32_1
:
2999 #ifdef WORDS_BIGENDIAN
3002 c
->pal_rgb
[i
]= (b
+ (g
<<8) + (r
<<16)) << 8;
3005 #ifndef WORDS_BIGENDIAN
3009 c
->pal_rgb
[i
]= b
+ (g
<<8) + (r
<<16);
3014 // copy strides, so they can safely be modified
3015 if (c
->sliceDir
== 1) {
3016 // slices go from top to bottom
3017 int srcStride2
[4]= {srcStride
[0], srcStride
[1], srcStride
[2], srcStride
[3]};
3018 int dstStride2
[4]= {dstStride
[0], dstStride
[1], dstStride
[2], dstStride
[3]};
3019 return c
->swScale(c
, src2
, srcStride2
, srcSliceY
, srcSliceH
, dst
, dstStride2
);
3021 // slices go from bottom to top => we flip the image internally
3022 uint8_t* dst2
[4]= {dst
[0] + (c
->dstH
-1)*dstStride
[0],
3023 dst
[1] + ((c
->dstH
>>c
->chrDstVSubSample
)-1)*dstStride
[1],
3024 dst
[2] + ((c
->dstH
>>c
->chrDstVSubSample
)-1)*dstStride
[2],
3025 dst
[3] + (c
->dstH
-1)*dstStride
[3]};
3026 int srcStride2
[4]= {-srcStride
[0], -srcStride
[1], -srcStride
[2], -srcStride
[3]};
3027 int dstStride2
[4]= {-dstStride
[0], -dstStride
[1], -dstStride
[2], -dstStride
[3]};
3029 src2
[0] += (srcSliceH
-1)*srcStride
[0];
3030 if (!usePal(c
->srcFormat
))
3031 src2
[1] += ((srcSliceH
>>c
->chrSrcVSubSample
)-1)*srcStride
[1];
3032 src2
[2] += ((srcSliceH
>>c
->chrSrcVSubSample
)-1)*srcStride
[2];
3033 src2
[3] += (srcSliceH
-1)*srcStride
[3];
3035 return c
->swScale(c
, src2
, srcStride2
, c
->srcH
-srcSliceY
-srcSliceH
, srcSliceH
, dst2
, dstStride2
);
3039 #if LIBSWSCALE_VERSION_MAJOR < 1
3040 int sws_scale_ordered(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
3041 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
3042 return sws_scale(c
, src
, srcStride
, srcSliceY
, srcSliceH
, dst
, dstStride
);
3046 SwsFilter
*sws_getDefaultFilter(float lumaGBlur
, float chromaGBlur
,
3047 float lumaSharpen
, float chromaSharpen
,
3048 float chromaHShift
, float chromaVShift
,
3051 SwsFilter
*filter
= av_malloc(sizeof(SwsFilter
));
3053 if (lumaGBlur
!=0.0){
3054 filter
->lumH
= sws_getGaussianVec(lumaGBlur
, 3.0);
3055 filter
->lumV
= sws_getGaussianVec(lumaGBlur
, 3.0);
3057 filter
->lumH
= sws_getIdentityVec();
3058 filter
->lumV
= sws_getIdentityVec();
3061 if (chromaGBlur
!=0.0){
3062 filter
->chrH
= sws_getGaussianVec(chromaGBlur
, 3.0);
3063 filter
->chrV
= sws_getGaussianVec(chromaGBlur
, 3.0);
3065 filter
->chrH
= sws_getIdentityVec();
3066 filter
->chrV
= sws_getIdentityVec();
3069 if (chromaSharpen
!=0.0){
3070 SwsVector
*id
= sws_getIdentityVec();
3071 sws_scaleVec(filter
->chrH
, -chromaSharpen
);
3072 sws_scaleVec(filter
->chrV
, -chromaSharpen
);
3073 sws_addVec(filter
->chrH
, id
);
3074 sws_addVec(filter
->chrV
, id
);
3078 if (lumaSharpen
!=0.0){
3079 SwsVector
*id
= sws_getIdentityVec();
3080 sws_scaleVec(filter
->lumH
, -lumaSharpen
);
3081 sws_scaleVec(filter
->lumV
, -lumaSharpen
);
3082 sws_addVec(filter
->lumH
, id
);
3083 sws_addVec(filter
->lumV
, id
);
3087 if (chromaHShift
!= 0.0)
3088 sws_shiftVec(filter
->chrH
, (int)(chromaHShift
+0.5));
3090 if (chromaVShift
!= 0.0)
3091 sws_shiftVec(filter
->chrV
, (int)(chromaVShift
+0.5));
3093 sws_normalizeVec(filter
->chrH
, 1.0);
3094 sws_normalizeVec(filter
->chrV
, 1.0);
3095 sws_normalizeVec(filter
->lumH
, 1.0);
3096 sws_normalizeVec(filter
->lumV
, 1.0);
3098 if (verbose
) sws_printVec2(filter
->chrH
, NULL
, AV_LOG_DEBUG
);
3099 if (verbose
) sws_printVec2(filter
->lumH
, NULL
, AV_LOG_DEBUG
);
3104 SwsVector
*sws_getGaussianVec(double variance
, double quality
){
3105 const int length
= (int)(variance
*quality
+ 0.5) | 1;
3107 double *coeff
= av_malloc(length
*sizeof(double));
3108 double middle
= (length
-1)*0.5;
3109 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3112 vec
->length
= length
;
3114 for (i
=0; i
<length
; i
++)
3116 double dist
= i
-middle
;
3117 coeff
[i
]= exp(-dist
*dist
/(2*variance
*variance
)) / sqrt(2*variance
*PI
);
3120 sws_normalizeVec(vec
, 1.0);
3125 SwsVector
*sws_getConstVec(double c
, int length
){
3127 double *coeff
= av_malloc(length
*sizeof(double));
3128 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3131 vec
->length
= length
;
3133 for (i
=0; i
<length
; i
++)
3140 SwsVector
*sws_getIdentityVec(void){
3141 return sws_getConstVec(1.0, 1);
3144 double sws_dcVec(SwsVector
*a
){
3148 for (i
=0; i
<a
->length
; i
++)
3154 void sws_scaleVec(SwsVector
*a
, double scalar
){
3157 for (i
=0; i
<a
->length
; i
++)
3158 a
->coeff
[i
]*= scalar
;
3161 void sws_normalizeVec(SwsVector
*a
, double height
){
3162 sws_scaleVec(a
, height
/sws_dcVec(a
));
3165 static SwsVector
*sws_getConvVec(SwsVector
*a
, SwsVector
*b
){
3166 int length
= a
->length
+ b
->length
- 1;
3167 double *coeff
= av_malloc(length
*sizeof(double));
3169 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3172 vec
->length
= length
;
3174 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3176 for (i
=0; i
<a
->length
; i
++)
3178 for (j
=0; j
<b
->length
; j
++)
3180 coeff
[i
+j
]+= a
->coeff
[i
]*b
->coeff
[j
];
3187 static SwsVector
*sws_sumVec(SwsVector
*a
, SwsVector
*b
){
3188 int length
= FFMAX(a
->length
, b
->length
);
3189 double *coeff
= av_malloc(length
*sizeof(double));
3191 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3194 vec
->length
= length
;
3196 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3198 for (i
=0; i
<a
->length
; i
++) coeff
[i
+ (length
-1)/2 - (a
->length
-1)/2]+= a
->coeff
[i
];
3199 for (i
=0; i
<b
->length
; i
++) coeff
[i
+ (length
-1)/2 - (b
->length
-1)/2]+= b
->coeff
[i
];
3204 static SwsVector
*sws_diffVec(SwsVector
*a
, SwsVector
*b
){
3205 int length
= FFMAX(a
->length
, b
->length
);
3206 double *coeff
= av_malloc(length
*sizeof(double));
3208 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3211 vec
->length
= length
;
3213 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3215 for (i
=0; i
<a
->length
; i
++) coeff
[i
+ (length
-1)/2 - (a
->length
-1)/2]+= a
->coeff
[i
];
3216 for (i
=0; i
<b
->length
; i
++) coeff
[i
+ (length
-1)/2 - (b
->length
-1)/2]-= b
->coeff
[i
];
3221 /* shift left / or right if "shift" is negative */
3222 static SwsVector
*sws_getShiftedVec(SwsVector
*a
, int shift
){
3223 int length
= a
->length
+ FFABS(shift
)*2;
3224 double *coeff
= av_malloc(length
*sizeof(double));
3226 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3229 vec
->length
= length
;
3231 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3233 for (i
=0; i
<a
->length
; i
++)
3235 coeff
[i
+ (length
-1)/2 - (a
->length
-1)/2 - shift
]= a
->coeff
[i
];
3241 void sws_shiftVec(SwsVector
*a
, int shift
){
3242 SwsVector
*shifted
= sws_getShiftedVec(a
, shift
);
3244 a
->coeff
= shifted
->coeff
;
3245 a
->length
= shifted
->length
;
3249 void sws_addVec(SwsVector
*a
, SwsVector
*b
){
3250 SwsVector
*sum
= sws_sumVec(a
, b
);
3252 a
->coeff
= sum
->coeff
;
3253 a
->length
= sum
->length
;
3257 void sws_subVec(SwsVector
*a
, SwsVector
*b
){
3258 SwsVector
*diff
= sws_diffVec(a
, b
);
3260 a
->coeff
= diff
->coeff
;
3261 a
->length
= diff
->length
;
3265 void sws_convVec(SwsVector
*a
, SwsVector
*b
){
3266 SwsVector
*conv
= sws_getConvVec(a
, b
);
3268 a
->coeff
= conv
->coeff
;
3269 a
->length
= conv
->length
;
3273 SwsVector
*sws_cloneVec(SwsVector
*a
){
3274 double *coeff
= av_malloc(a
->length
*sizeof(double));
3276 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3279 vec
->length
= a
->length
;
3281 for (i
=0; i
<a
->length
; i
++) coeff
[i
]= a
->coeff
[i
];
3286 void sws_printVec2(SwsVector
*a
, AVClass
*log_ctx
, int log_level
){
3292 for (i
=0; i
<a
->length
; i
++)
3293 if (a
->coeff
[i
]>max
) max
= a
->coeff
[i
];
3295 for (i
=0; i
<a
->length
; i
++)
3296 if (a
->coeff
[i
]<min
) min
= a
->coeff
[i
];
3300 for (i
=0; i
<a
->length
; i
++)
3302 int x
= (int)((a
->coeff
[i
]-min
)*60.0/range
+0.5);
3303 av_log(log_ctx
, log_level
, "%1.3f ", a
->coeff
[i
]);
3304 for (;x
>0; x
--) av_log(log_ctx
, log_level
, " ");
3305 av_log(log_ctx
, log_level
, "|\n");
3309 #if LIBSWSCALE_VERSION_MAJOR < 1
3310 void sws_printVec(SwsVector
*a
){
3311 sws_printVec2(a
, NULL
, AV_LOG_DEBUG
);
3315 void sws_freeVec(SwsVector
*a
){
3317 av_freep(&a
->coeff
);
3322 void sws_freeFilter(SwsFilter
*filter
){
3323 if (!filter
) return;
3325 if (filter
->lumH
) sws_freeVec(filter
->lumH
);
3326 if (filter
->lumV
) sws_freeVec(filter
->lumV
);
3327 if (filter
->chrH
) sws_freeVec(filter
->chrH
);
3328 if (filter
->chrV
) sws_freeVec(filter
->chrV
);
3333 void sws_freeContext(SwsContext
*c
){
3339 for (i
=0; i
<c
->vLumBufSize
; i
++)
3340 av_freep(&c
->lumPixBuf
[i
]);
3341 av_freep(&c
->lumPixBuf
);
3346 for (i
=0; i
<c
->vChrBufSize
; i
++)
3347 av_freep(&c
->chrPixBuf
[i
]);
3348 av_freep(&c
->chrPixBuf
);
3351 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
){
3352 for (i
=0; i
<c
->vLumBufSize
; i
++)
3353 av_freep(&c
->alpPixBuf
[i
]);
3354 av_freep(&c
->alpPixBuf
);
3357 av_freep(&c
->vLumFilter
);
3358 av_freep(&c
->vChrFilter
);
3359 av_freep(&c
->hLumFilter
);
3360 av_freep(&c
->hChrFilter
);
3362 av_freep(&c
->vYCoeffsBank
);
3363 av_freep(&c
->vCCoeffsBank
);
3366 av_freep(&c
->vLumFilterPos
);
3367 av_freep(&c
->vChrFilterPos
);
3368 av_freep(&c
->hLumFilterPos
);
3369 av_freep(&c
->hChrFilterPos
);
3371 #if ARCH_X86 && CONFIG_GPL
3372 #ifdef MAP_ANONYMOUS
3373 if (c
->funnyYCode
) munmap(c
->funnyYCode
, MAX_FUNNY_CODE_SIZE
);
3374 if (c
->funnyUVCode
) munmap(c
->funnyUVCode
, MAX_FUNNY_CODE_SIZE
);
3375 #elif HAVE_VIRTUALALLOC
3376 if (c
->funnyYCode
) VirtualFree(c
->funnyYCode
, MAX_FUNNY_CODE_SIZE
, MEM_RELEASE
);
3377 if (c
->funnyUVCode
) VirtualFree(c
->funnyUVCode
, MAX_FUNNY_CODE_SIZE
, MEM_RELEASE
);
3379 av_free(c
->funnyYCode
);
3380 av_free(c
->funnyUVCode
);
3383 c
->funnyUVCode
=NULL
;
3384 #endif /* ARCH_X86 && CONFIG_GPL */
3386 av_freep(&c
->lumMmx2Filter
);
3387 av_freep(&c
->chrMmx2Filter
);
3388 av_freep(&c
->lumMmx2FilterPos
);
3389 av_freep(&c
->chrMmx2FilterPos
);
3390 av_freep(&c
->yuvTable
);
3395 struct SwsContext
*sws_getCachedContext(struct SwsContext
*context
,
3396 int srcW
, int srcH
, enum PixelFormat srcFormat
,
3397 int dstW
, int dstH
, enum PixelFormat dstFormat
, int flags
,
3398 SwsFilter
*srcFilter
, SwsFilter
*dstFilter
, double *param
)
3400 static const double default_param
[2] = {SWS_PARAM_DEFAULT
, SWS_PARAM_DEFAULT
};
3403 param
= default_param
;
3406 if (context
->srcW
!= srcW
|| context
->srcH
!= srcH
||
3407 context
->srcFormat
!= srcFormat
||
3408 context
->dstW
!= dstW
|| context
->dstH
!= dstH
||
3409 context
->dstFormat
!= dstFormat
|| context
->flags
!= flags
||
3410 context
->param
[0] != param
[0] || context
->param
[1] != param
[1])
3412 sws_freeContext(context
);
3417 return sws_getContext(srcW
, srcH
, srcFormat
,
3418 dstW
, dstH
, dstFormat
, flags
,
3419 srcFilter
, dstFilter
, param
);