1V4L2_VBI_UNSYNC 2V4L2_VBI_INTERLACED 3V4L2_VBI_ITU_525_F1_START 4V4L2_VBI_ITU_525_F2_START 5V4L2_VBI_ITU_625_F1_START 6V4L2_VBI_ITU_625_F2_START 7