UVIDEO_SH_MIN_LEN
if (len < UVIDEO_SH_MIN_LEN)
if (hdrlen > len || hdrlen < UVIDEO_SH_MIN_LEN)
if (frame_size < UVIDEO_SH_MIN_LEN)
if (sh->bLength > frame_size || sh->bLength < UVIDEO_SH_MIN_LEN)