mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
3.7 KiB
117 lines
3.7 KiB
/* |
|
Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> |
|
|
|
This program is free software; you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation; either version 2 of the License, or |
|
(at your option) any later version. |
|
|
|
This program 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 General Public License for more details. |
|
|
|
You should have received a copy of the GNU General Public License |
|
along with this program; if not, write to the Free Software |
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
*/ |
|
|
|
#ifndef SWSCALE_H |
|
#define SWSCALE_H |
|
|
|
#include "swscale_internal.h" //FIXME HACK REMOVE |
|
|
|
/* 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_MASK 0x3FC0000 |
|
#define SWS_PARAM_SHIFT 18 |
|
|
|
#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_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; |
|
|
|
|
|
// *** bilinear scaling and yuv->rgb & yuv->yuv conversion of yv12 slices: |
|
// *** Note: it's called multiple times while decoding a frame, first time y==0 |
|
// dstbpp == 12 -> yv12 output |
|
// will use sws_flags |
|
void SwScale_YV12slice(unsigned char* src[],int srcStride[], int srcSliceY, |
|
int srcSliceH, uint8_t* dst[], int dstStride, int dstbpp, |
|
int srcW, int srcH, int dstW, int dstH); |
|
|
|
// Obsolete, will be removed soon |
|
void SwScale_Init(); |
|
|
|
|
|
|
|
void freeSwsContext(SwsContext *swsContext); |
|
|
|
SwsContext *getSwsContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat); |
|
SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags, |
|
SwsFilter *srcFilter, SwsFilter *dstFilter); |
|
void swsGetFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, SwsFilter **dstFilterParam); |
|
|
|
int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation); |
|
int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation); |
|
|
|
SwsVector *getGaussianVec(double variance, double quality); |
|
SwsVector *getConstVec(double c, int length); |
|
SwsVector *getIdentityVec(void); |
|
void scaleVec(SwsVector *a, double scalar); |
|
void normalizeVec(SwsVector *a, double height); |
|
void convVec(SwsVector *a, SwsVector *b); |
|
void addVec(SwsVector *a, SwsVector *b); |
|
void subVec(SwsVector *a, SwsVector *b); |
|
void shiftVec(SwsVector *a, int shift); |
|
SwsVector *cloneVec(SwsVector *a); |
|
|
|
void printVec(SwsVector *a); |
|
void freeVec(SwsVector *a); |
|
|
|
#endif
|
|
|