Can you site the source of this information? Does libav completely replace ffmpeg?
From what I see ffmpeg is built from the libav source package in Sid. So perhaps it is a drop in replacement.http://packages.debian.org/source/sid/libav
libva is a drop-in replacement for ffmpeg, but why switch to it when it seems that ffmpeg is putting out newer features at a faster rate than libva?
These are their homepages. In particular, http://libav.org/index.htmlhttp://ffmpeg.org/
The truth is I'm only guessing Debian is sticking to libva (but I think it's a pretty good guess), mainly because the version in Sid is at 0.7.2 (latest version of libva), but if you check ffmpeg's website they just released 0.9 (which is available to Debian users thanks to the debian multimedia repository)
I guess I just want to know why libva and not ffmpeg