wavparse: Runs all typefinders for all output
Introduced by 754f3a31 12 years ago
In order to figure out if the "raw" audio contained within the wav container is actually DTS, wavparse
calls the typefinder helper ... except that means it runs all typefinders.
Since it only cares about checking for DTS, it should only run the audio/x-dts
typefinder (if present).