[Ffmpeg-devel] [PATCH/BUGREPORT] crash in vorbis decoder

Balatoni Denes dbalatoni
Tue Feb 13 02:27:27 CET 2007


Hi!

Tuesday 13 February 2007 00:24-kor Michael Niedermayer wrote:
> the vorbis encoder encodes the standard regression test audio to different
> bytestreams on PPC/x86_64 and x86_32 PPC and x86_64 differ only in 2 bytes
> the difference to x86_32 was bigger but surprisingly all 3 decode to the
> identical output of decoding is done on x86_32
> if OTOH decoding is done on different architectures the outout differs alot
> IMHO too much for mere rounding differences
>
> also ive had to flip the sign to make encoder-decoder give non flipped
> output, but i think the bug is in the (i)mdct as wma is affected too
>
> happy bughunting :)

Thanks, also for summing up the situation. I will have a look at both this 
encoder bug and the decoder bug Reimar posted - in the near future. 

> [...]
bye
Denes





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