pub type CodecProbe = fn(&[u8]) -> bool;Expand description
A bitstream-probe function that inspects the first bytes of a packet
and returns true if this codec can decode it. Lets the registry
disambiguate the many container tags that get mislabelled in the
wild (most famous: AVI FourCC DIV3 routing to MPEG-4 Part 2
instead of MS-MPEG4v3).