Expose CODEC_FLAG2_FAST as "UseFastDecode" in defaults.
Expose CODEC_FLAG2_FAST as "UseFastDecode" in defaults.

This allows something like 25% faster h264 decode until filter_mb_fast is fixed.


MaddTheSane/perian,MaddTheSane/perian,MaddTheSane/perian,MaddTheSane/perian,MaddTheSane/perian,MaddTheSane/perian