VBI_ACTIVE_SAMPLES
cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = VBI_ACTIVE_SAMPLES * 36;
vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4;
data[2] = (raw ? VBI_ACTIVE_SAMPLES
* 2 * VBI_ACTIVE_SAMPLES;
u32 line_size = VBI_ACTIVE_SAMPLES;