One issue I've noted, in trying to build with the local statically-linked
ffmpeg (the default scenario): the qrender/local_ffmpeg.sh script makes a
bad assumption about the path ffmpeg-snapshot.tar[.bz2] extracts to.
(Namely, that it's NOT 'ffmpeg'.) As a result, it creates a broken recursive
symlink 'ffmpeg/ffmpeg' that eventually breaks the ffmpeg build during its
"install" phase.
I kluged around that like so (diff attached) — it's admittedly ugly, but it
at least lets the ffmpeg build complete successfully inside qrender/.
I also added a pre-extract 'rm' to ensure ffmpeg-snapshot.tar wasn't being
extracted on top of a previous, potentially different/dirty, source tree.
But I kind of hate that, because I don't sanity-check $extractDir
sufficiently before tossing it to something as potentially-destructive as
'rm -r'.
...Unfortunately, as is all too common when dealing with ffmpeg's
moving-target API, this fix allows the build to advance only slightly
farther before it falls over in a flurry of deprecation warnings and
undeclared symbols trying to compile engine/ffmpeg_enc.cpp (see relevant
output, also attached.)
So, at best this just seems to expose an incompatibility with recent
ffmpeg-snapshot.tar.bz2. :-(
-FeRD
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