cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoColorBGR2JFIFYCC420(mlib_u8 *y0, mlib_u8 *y1, mlib_u8 *cb, mlib_u8 *cr, const mlib_u8 *bgr0, const mlib_u8 *bgr1, mlib_s32 n);
The mlib_VideoColorBGR2JFIFYCC420() function performs color space conversion from BGR to YCbCr together with sampling rate conversion when used in the JPEG File Interchange Format (JFIF).
The function takes the following arguments:
Pointer to upper destination Y component row. y0 must be 8-byte aligned.
Pointer to lower destination Y component row. y1 must be 8-byte aligned.
Pointer to destination Cb component row. cb must be 8-byte aligned.
Pointer to destination Cr component row. cr must be 8-byte aligned.
Pointer to upper source BGR multi-component row. bgr0 must be 8-byte aligned.
Pointer to lower source BGR multi-component row. bgr1 must be 8-byte aligned.
Length of Y component row. n must be even. The length of Cb and Cr component rows must be n/2. The length of the BGR multi-component row must be 3*n.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes: