ccvt_c.c: In function ‘ccvt_420i_yuyv’:
ccvt_c.c:471:11: warning: pointer of type ‘void *’ used in arithmetic [-Wpointer-arith]
ccvt_c.c: In function ‘ccvt_420i_uyvy’:
ccvt_c.c:510:11: warning: pointer of type ‘void *’ used in arithmetic [-Wpointer-arith]
