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cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_VideoColorBGR2JFIFYCC444_S16(mlib_s16 *y, mlib_s16 *cb, mlib_s16 *cr, const mlib_s16 *bgr, mlib_s32 n);
The mlib_VideoColorBGR2JFIFYCC444_S16() function performs color space conversion from BGR to YCbCr when used in the JPEG File Interchange Format (JFIF).
Both the input BGR components and the output YCbCr components are supposed to be in the range of [0, 4095].
The following equation is used:
Y = 0.29900 * R + 0.58700 * G + 0.11400 * B Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + 2048 Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + 2048
The function takes the following arguments:
y
cb
cr
bgr
n
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
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mlib_VideoColorBGR2JFIFYCC420(3MLIB), mlib_VideoColorBGR2JFIFYCC422(3MLIB), mlib_VideoColorBGR2JFIFYCC444(3MLIB), attributes(5)