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FFmpeg/postproc/swscale.h
Michael Niedermayer 3885847036 yv12 to yv12 scaler
someone who knows a bit about vo_odivx could add support for it ...

Originally committed as revision 2520 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
2001-10-28 18:30:59 +00:00

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C

// *** 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
// *** Designed to upscale, but may work for downscale too.
// s_xinc = (src_width << 8) / dst_width
// s_yinc = (src_height << 16) / dst_height
// dstbpp == 12 -> yv12 output
void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int y, int h,
uint8_t* dstptr[], int dststride, int dstw, int dstbpp,
unsigned int s_xinc,unsigned int s_yinc);
// generating tables
void SwScale_Init();