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Diffstat (limited to 'contrib/ffmpeg/libswscale/swscale.h')
| -rw-r--r-- | contrib/ffmpeg/libswscale/swscale.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libswscale/swscale.h b/contrib/ffmpeg/libswscale/swscale.h new file mode 100644 index 000000000..27d1aa3ef --- /dev/null +++ b/contrib/ffmpeg/libswscale/swscale.h @@ -0,0 +1,148 @@ +/* + * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef SWSCALE_H +#define SWSCALE_H + +/** + * @file swscale.h + * @brief + * external api for the swscale stuff + */ + +#include "avutil.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define AV_STRINGIFY(s) AV_TOSTRING(s) +#define AV_TOSTRING(s) #s + +#define LIBSWSCALE_VERSION_INT ((0<<16)+(5<<8)+0) +#define LIBSWSCALE_VERSION 0.5.0 +#define LIBSWSCALE_BUILD LIBSWSCALE_VERSION_INT + +#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION) + +/* values for the flags, the stuff on the command line is different */ +#define SWS_FAST_BILINEAR 1 +#define SWS_BILINEAR 2 +#define SWS_BICUBIC 4 +#define SWS_X 8 +#define SWS_POINT 0x10 +#define SWS_AREA 0x20 +#define SWS_BICUBLIN 0x40 +#define SWS_GAUSS 0x80 +#define SWS_SINC 0x100 +#define SWS_LANCZOS 0x200 +#define SWS_SPLINE 0x400 + +#define SWS_SRC_V_CHR_DROP_MASK 0x30000 +#define SWS_SRC_V_CHR_DROP_SHIFT 16 + +#define SWS_PARAM_DEFAULT 123456 + +#define SWS_PRINT_INFO 0x1000 + +//the following 3 flags are not completly implemented +//internal chrominace subsamling info +#define SWS_FULL_CHR_H_INT 0x2000 +//input subsampling info +#define SWS_FULL_CHR_H_INP 0x4000 +#define SWS_DIRECT_BGR 0x8000 +#define SWS_ACCURATE_RND 0x40000 + +#define SWS_CPU_CAPS_MMX 0x80000000 +#define SWS_CPU_CAPS_MMX2 0x20000000 +#define SWS_CPU_CAPS_3DNOW 0x40000000 +#define SWS_CPU_CAPS_ALTIVEC 0x10000000 + +#define SWS_MAX_REDUCE_CUTOFF 0.002 + +#define SWS_CS_ITU709 1 +#define SWS_CS_FCC 4 +#define SWS_CS_ITU601 5 +#define SWS_CS_ITU624 5 +#define SWS_CS_SMPTE170M 5 +#define SWS_CS_SMPTE240M 7 +#define SWS_CS_DEFAULT 5 + + + +// when used for filters they must have an odd number of elements +// coeffs cannot be shared between vectors +typedef struct { + double *coeff; + int length; +} SwsVector; + +// vectors can be shared +typedef struct { + SwsVector *lumH; + SwsVector *lumV; + SwsVector *chrH; + SwsVector *chrV; +} SwsFilter; + +struct SwsContext; + +void sws_freeContext(struct SwsContext *swsContext); + +struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags, + SwsFilter *srcFilter, SwsFilter *dstFilter, double *param); +int sws_scale(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY, + int srcSliceH, uint8_t* dst[], int dstStride[]); +int sws_scale_ordered(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY, + int srcSliceH, uint8_t* dst[], int dstStride[]) attribute_deprecated; + + +int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation); +int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation); +SwsVector *sws_getGaussianVec(double variance, double quality); +SwsVector *sws_getConstVec(double c, int length); +SwsVector *sws_getIdentityVec(void); +void sws_scaleVec(SwsVector *a, double scalar); +void sws_normalizeVec(SwsVector *a, double height); +void sws_convVec(SwsVector *a, SwsVector *b); +void sws_addVec(SwsVector *a, SwsVector *b); +void sws_subVec(SwsVector *a, SwsVector *b); +void sws_shiftVec(SwsVector *a, int shift); +SwsVector *sws_cloneVec(SwsVector *a); + +void sws_printVec(SwsVector *a); +void sws_freeVec(SwsVector *a); + +SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, + float lumaSarpen, float chromaSharpen, + float chromaHShift, float chromaVShift, + int verbose); +void sws_freeFilter(SwsFilter *filter); + +struct SwsContext *sws_getCachedContext(struct SwsContext *context, + int srcW, int srcH, int srcFormat, + int dstW, int dstH, int dstFormat, int flags, + SwsFilter *srcFilter, SwsFilter *dstFilter, double *param); + +#ifdef __cplusplus +} +#endif + +#endif |