[vorbis] Compression Artifacts at -q 5. Help!

[Michael Smith]

> 
> >bash$ cat /proc/version
> >Linux version 2.2.14-5.0 (root at porky.devel.redhat.com) (gcc version 
> >egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Tue Mar 7 20:53:41 
> >EST 2000

You quite likely have problems with either that compiler (old egcs versions
were pretty buggy, and particularly bad when doing complex floating point code
like libvorbis), or your libc - some versions (and redhat 6.2 is about the
right age to have these problems) had broken inline asm for maths functions. I
think we used to check for these in configure, but those checks may no longer
be around (the problem is long-since fixed, and not commonly encountered on
modern machines). 

Can you build at least libvorbis using a modern-ish system, and then run it on
your system (or build the whole lot on another system, if you want), OR
provide a small test case in wav form for us to test (a couple of meg is
suitable - cutting out part of what you provided in ogg form would be good).

<p>Mike

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