Update ffmpeg version guards.
Update ffmpeg version guards.

tschmidt23/Pangolin,pinglin/Pangolin,mp3guy/Pangolin,stevenlovegrove/Pangolin,wxdzju/Pangolin,tschmidt23/Pangolin,stevenlovegrove/Pangolin,GrimDerp/Pangolin,GrimDerp/Pangolin,wxdzju/Pangolin,janjachnik/Pangolin,arpg/Pangolin,mp3guy/Pangolin,randi120/Pangolin,renzodenardi/Pangolin,pinglin/Pangolin,renzodenardi/Pangolin,contradict/Pangolin,randi120/Pangolin,visigoth/Pangolin,arpg/Pangolin,contradict/Pangolin,visigoth/Pangolin,janjachnik/Pangolin,stevenlovegrove/Pangolin,mp3guy/Pangolin,tschmidt23/Pangolin