enum PixelFormat srcFormat; ///< Source pixel format.
int dstFormatBpp; ///< Number of bits per pixel of the destination pixel format.
int srcFormatBpp; ///< Number of bits per pixel of the source pixel format.
+ int scalingBpp;
int chrSrcHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in source image.
int chrSrcVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in source image.
int chrDstHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in destination image.
void (*lumConvertRange)(int16_t *dst, int width); ///< Color range conversion function for luma plane if needed.
void (*chrConvertRange)(int16_t *dst1, int16_t *dst2, int width); ///< Color range conversion function for chroma planes if needed.
+ /**
+ * dst[..] = (src[..] << 8) | src[..];
+ */
+ void (*scale8To16Rv)(uint16_t *dst, const uint8_t *src, int len);
+ /**
+ * dst[..] = src[..] >> 4;
+ */
+ void (*scale19To15Fw)(int16_t *dst, const int32_t *src, int len);
+
int needs_hcscale; ///< Set if there are chroma planes to be converted.
} SwsContext;