Fixed Ffmpeg#1

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RichardHum wants to merge 3 commits intobbpublic:masterfrom

RichardHum:master

Commits on Jun 3, 2014

Fixed Ffmpeg
alfonzo1955
committed
qscale should be 0
alfonzo1955
committed

Commits on Jun 17, 2014

Add uninstall script
alfonzo1955
committed