B_CB_OFF           76 3rdparty/libjpeg/jccolor.c #define R_CR_OFF	B_CB_OFF		/* B=>Cb, R=>Cr are the same */
B_CB_OFF          108 3rdparty/libjpeg/jccolor.c     rgb_ycc_tab[i+B_CB_OFF] = FIX(0.50000) * i    + CBCR_OFFSET + ONE_HALF-1;
B_CB_OFF          164 3rdparty/libjpeg/jccolor.c                 ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF])
B_CB_OFF          261 3rdparty/libjpeg/jccolor.c                 ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF])