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130 lines
4.1 KiB
130 lines
4.1 KiB
/* |
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Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program 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 |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef SWSCALE_H |
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#define SWSCALE_H |
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/** |
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* @file 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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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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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_MASK 0x3FC0000 |
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#define SWS_PARAM_SHIFT 18 |
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#define SWS_PRINT_INFO 0x1000 |
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//the following 3 flags are not completly implemented |
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//internal chrominace subsamling 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_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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//typedef struct SwsContext; |
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// *** bilinear scaling and yuv->rgb & yuv->yuv conversion of yv12 slices: |
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// *** Note: it's called multiple times while decoding a frame, first time y==0 |
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// dstbpp == 12 -> yv12 output |
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// will use sws_flags |
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// deprecated, will be removed |
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void SwScale_YV12slice(unsigned char* src[],int srcStride[], int srcSliceY, |
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int srcSliceH, uint8_t* dst[], int dstStride, int dstbpp, |
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int srcW, int srcH, int dstW, int dstH); |
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void sws_freeContext(struct SwsContext *swsContext); |
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struct SwsContext *sws_getContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat); |
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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); |
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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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void sws_getFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, SwsFilter **dstFilterParam); //FIXME try to seperate this |
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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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#ifdef __cplusplus |
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} |
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#endif |
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#endif
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