Bug#570713: upstream 0.5.1

[Michael Gilbert]

fyi, upstream just released version 0.5.1 [0], and it looks like they
backported all of these security fixes, so it may be easier to figure
out the needed patches from the diff there.

would it be wise to plan to ship squeeze with their stable point
releases rather than their latest svn?

thanks for working on these issues!

mike

[0] http://ffmpeg.org/releases/ffmpeg-0.5.1.release