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152 lines
5.5 KiB
152 lines
5.5 KiB
/* |
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* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef SWSCALE_SWSCALE_H |
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#define SWSCALE_SWSCALE_H |
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/** |
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* @file libswscale/swscale.h |
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* @brief |
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* external api for the swscale stuff |
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*/ |
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#include "libavutil/avutil.h" |
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#define LIBSWSCALE_VERSION_MAJOR 0 |
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#define LIBSWSCALE_VERSION_MINOR 6 |
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#define LIBSWSCALE_VERSION_MICRO 1 |
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#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \ |
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LIBSWSCALE_VERSION_MINOR, \ |
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LIBSWSCALE_VERSION_MICRO) |
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#define LIBSWSCALE_VERSION AV_VERSION(LIBSWSCALE_VERSION_MAJOR, \ |
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LIBSWSCALE_VERSION_MINOR, \ |
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LIBSWSCALE_VERSION_MICRO) |
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#define LIBSWSCALE_BUILD LIBSWSCALE_VERSION_INT |
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#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION) |
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/** |
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* Returns the LIBSWSCALE_VERSION_INT constant. |
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*/ |
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unsigned swscale_version(void); |
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/* values for the flags, the stuff on the command line is different */ |
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#define SWS_FAST_BILINEAR 1 |
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#define SWS_BILINEAR 2 |
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#define SWS_BICUBIC 4 |
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#define SWS_X 8 |
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#define SWS_POINT 0x10 |
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#define SWS_AREA 0x20 |
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#define SWS_BICUBLIN 0x40 |
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#define SWS_GAUSS 0x80 |
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#define SWS_SINC 0x100 |
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#define SWS_LANCZOS 0x200 |
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#define SWS_SPLINE 0x400 |
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#define SWS_SRC_V_CHR_DROP_MASK 0x30000 |
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#define SWS_SRC_V_CHR_DROP_SHIFT 16 |
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#define SWS_PARAM_DEFAULT 123456 |
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#define SWS_PRINT_INFO 0x1000 |
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//the following 3 flags are not completely implemented |
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//internal chrominace subsampling info |
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#define SWS_FULL_CHR_H_INT 0x2000 |
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//input subsampling info |
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#define SWS_FULL_CHR_H_INP 0x4000 |
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#define SWS_DIRECT_BGR 0x8000 |
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#define SWS_ACCURATE_RND 0x40000 |
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#define SWS_BITEXACT 0x80000 |
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#define SWS_CPU_CAPS_MMX 0x80000000 |
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#define SWS_CPU_CAPS_MMX2 0x20000000 |
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#define SWS_CPU_CAPS_3DNOW 0x40000000 |
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#define SWS_CPU_CAPS_ALTIVEC 0x10000000 |
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#define SWS_CPU_CAPS_BFIN 0x01000000 |
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#define SWS_MAX_REDUCE_CUTOFF 0.002 |
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#define SWS_CS_ITU709 1 |
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#define SWS_CS_FCC 4 |
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#define SWS_CS_ITU601 5 |
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#define SWS_CS_ITU624 5 |
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#define SWS_CS_SMPTE170M 5 |
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#define SWS_CS_SMPTE240M 7 |
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#define SWS_CS_DEFAULT 5 |
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// when used for filters they must have an odd number of elements |
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// coeffs cannot be shared between vectors |
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typedef struct { |
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double *coeff; |
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int length; |
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} SwsVector; |
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// vectors can be shared |
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typedef struct { |
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SwsVector *lumH; |
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SwsVector *lumV; |
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SwsVector *chrH; |
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SwsVector *chrV; |
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} SwsFilter; |
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struct SwsContext; |
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void sws_freeContext(struct SwsContext *swsContext); |
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struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags, |
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SwsFilter *srcFilter, SwsFilter *dstFilter, double *param); |
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int sws_scale(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY, |
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int srcSliceH, uint8_t* dst[], int dstStride[]); |
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int sws_scale_ordered(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY, |
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int srcSliceH, uint8_t* dst[], int dstStride[]) attribute_deprecated; |
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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); |
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int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation); |
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SwsVector *sws_getGaussianVec(double variance, double quality); |
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SwsVector *sws_getConstVec(double c, int length); |
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SwsVector *sws_getIdentityVec(void); |
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void sws_scaleVec(SwsVector *a, double scalar); |
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void sws_normalizeVec(SwsVector *a, double height); |
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void sws_convVec(SwsVector *a, SwsVector *b); |
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void sws_addVec(SwsVector *a, SwsVector *b); |
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void sws_subVec(SwsVector *a, SwsVector *b); |
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void sws_shiftVec(SwsVector *a, int shift); |
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SwsVector *sws_cloneVec(SwsVector *a); |
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void sws_printVec(SwsVector *a); |
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void sws_freeVec(SwsVector *a); |
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SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, |
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float lumaSarpen, float chromaSharpen, |
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float chromaHShift, float chromaVShift, |
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int verbose); |
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void sws_freeFilter(SwsFilter *filter); |
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struct SwsContext *sws_getCachedContext(struct SwsContext *context, |
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int srcW, int srcH, int srcFormat, |
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int dstW, int dstH, int dstFormat, int flags, |
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SwsFilter *srcFilter, SwsFilter *dstFilter, double *param); |
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#endif /* SWSCALE_SWSCALE_H */
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