> FFMPEG installation is always a bit of a chore.



>From http://ubuntuforums.org/showthread.php?t=2219550  this worked fine:

sudo add-apt-repository ppa:jon-severinsson/ffmpeg

sudo apt-get update

sudo apt-get install ffmpeg

sudo apt-get install frei0r-plugins



I'm running 14.04.2 LTS so too late for me, but according to

http://www.webupd8.org/2014/11/ffmpeg-returns-to-official-ubuntu.html

FFMPEG has returned with Ubuntu 15.04 Vivid Vervet - they had substituted
another fork (avconv) after June 2011.

http://askubuntu.com/questions/432542/is-ffmpeg-missing-from-the-official-repositories-in-14-04





> I will report performance improvement once I get everything working.



On a good day, my old Pentium3 (single core) @ 730Mhz (1461.97 bogomips)
with 500mb RAM would compute 40MB of mp4 data in 12 to 13 hrs.



Now my new i5 @3.5Mhz (4 cores at  6997.97 bogomips) with 32gb RAM cranks
out 200 to 300 MB of mp4's in an hour or two.

That's about 6x more data in an eighth of the time.
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