Changing Hap compression settings in an app such as VirtualDub (both 32 and 64)
can lead to gibberish being stored in the HKCU\Software\HapCodec registry key.
Both NullFrames and UseSnappy are often (but not always) set to seemingly
random values (such as 0x74f41300).
Checking the registry while doing settings changes helps me reproduce the issue
about half the time, but I haven't been able to figure out exactly what leads
to correct and incorrect values being stored.
I found this while trying to understand why some files I was encoding were not
being compressed with Snappy. It seems this is the cause for that issue. If I
use the regedit to change settings I can get the enconder to work consistently.
Original issue reported on code.google.com by
ncruceson 8 Apr 2014 at 6:48