** Summary changed:
- libxvidcore (feisty) significantly slower than in edgy
+ [Feisty] libxvidcore missing dependency for nasm for i386 arch : at least 3
times slower than in edgy
** Description changed:
Binary package hint: libxvidcore4
+
+ Feisty's libxvidcore4 debian/control is missing a dependency for nasm
+ [i386] - thus making any xvid encode 3 times slower than it should. This
+ problem doesn't affect amd64, nor should affect other arch
After an upgrade from edgy to feisty I noticed that Xvid transcoding was
significantly slower.
e.g. mencoder blah.avi -ovc xvid -xvidencopts bitrate=2000 -nosound -o
blah.mp4
Reverting to the edgy libxvidcore4 (2:1.1.0-final-0.1ubuntu1) fixed the
problem.
Switching back to the feisty package (2:1.1.2-0.1ubuntu1) again produced the
slower performance. No other libraries were changed.
Building libxvidcore from source produced a package which performed
badly as per (2:1.1.2-0.1ubuntu1).
Reading the doc/INSTALL I noticed this in the build Requirements:
- nasm on ia32 platforms for MMX/SSE optimized code.
Installing nasm and rebuilding the package produced a libxvidcore that
performed at least as well as (2:1.1.0-final-0.1ubuntu1).
So I'm guessing that (2:1.1.2-0.1ubuntu1) was built without nasm.
--
[Feisty] libxvidcore missing dependency for nasm for i386 arch : at least 3
times slower than in edgy
https://bugs.launchpad.net/bugs/84705
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