mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
39c70be189
Originally committed as revision 24800 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
142 lines
5.0 KiB
C
142 lines
5.0 KiB
C
/*
|
|
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef FFMPEG_SWSCALE_H
|
|
#define FFMPEG_SWSCALE_H
|
|
|
|
/**
|
|
* @file swscale.h
|
|
* @brief
|
|
* external api for the swscale stuff
|
|
*/
|
|
|
|
#include "avutil.h"
|
|
|
|
#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 completely implemented
|
|
//internal chrominace subsampling 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_CPU_CAPS_BFIN 0x01000000
|
|
|
|
#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);
|
|
|
|
#endif /* FFMPEG_SWSCALE_H */
|