Apply patch for FFmpeg

[Petr Nejedly]

bug 807

https://ffmpeg.org/trac/ffmpeg/ticket/177

Also update sources on website and let patters know

ffmpeg -i "Star Wars Episode I The Phantom Menace 1999 1080p HDTV x264 5.1 AC3.mkv" -vcodec copy -vbsf h264_mp4toannexb -acodec copy -f mpegts -y d:\out.mpg

[Petr Nejedly]

Check if this is working (supplying user-agent), if yes check with AppleTrailers plugin and possibly remove getFFmpegUserAgent() from the plugin API.. https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2011-November/116638.html