[MPlayer-users] mencoder problems : lame and 'make test' results
m.hunold at gmx.de
Fri Nov 16 09:34:32 CET 2001
> I've run some tests for lame 3.89beta compilation on the configurations
> I had available ( Mandrake 8.0 gcc-2.96-0.48mdk / Debian stable gcc
> 2.95.2-13 / Debian unstable gcc 2.95.4-8 / Debian unstable gcc 3.0.2-3)
Thank you very much for your investigations!
> In lame makefile, may be read:
> " Because of compiler options and effects of roundoff, the number of
> bytes which are different may not be zero, but should be at most 30."
> Most 'make test' results were above 400 !
Same for me. I got the same errors as with "mencoder" here. It remember
doing "make test" using the same configuration with lame 3.70. That one
did not show any problems.
But when I upgraded to 3.89b because of "mencoder", I ommited the test.
Perhaps they changed the default compile flags.
> I've checked a bit further with the CFLAGS. My conclusions after a 10's
> of tests is that lame should not be compiled with default optimization flags
> if quality (functionnality) matters.
That solves the problem for me, too.
> PS: FWIW, the gcc296 I found does not even^W run the test with standard
> flags, other versions may probably do it...
So again it
's one of these famous 2.96 errors. Perhaps these
things should be added to the docs, too.
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