I put the first attempt at a way to validate your compilation of
LAME into CVS:
There is now a small (7 frame) testcase,
testcase.wav
testcase.mp3 'official' output
Typing 'make test' under unix will run:
./lame --nores -h testcase.wav testcase.new.mp3
cmp -l testcase.new.mp3 testcase.mp3 | wc
The first number in the output of wc is the number of bytes which
differ between the new output and the official results.
testcase.mp3 is 2926 bytes, so I think the wc output should be
at most 1% different, or at most 30 bytes.
It may not be zero due to differences in rounding cased by
math libraries and optimization. But the --nores prevents
these differences from propagating past a single frame.
I would be interested if others using CVS could post the results
from 'make test'. Especially non-linux users, although I dont
know what the 'wc' command would be under windows.
Mark
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