[linux-audio-dev] libsndfile breakage

[james at dis-dot-dat.net]

On Wed, 11 Feb, 2004 at 09:14PM +1100, Erik de Castro Lopo spake thus:
> On Wed, 11 Feb 2004 09:08:58 +0000
> james at dis-dot-dat.net wrote:
> 
> > Hi peeps,
> > 
> >    I've only just started playing with libsndfile, so I hope this
> >    isn't a dumb question.
> 
> What version of libsndfile?

1.0.5
 
> >    I get a segmentation fault when I try to use sf_readf_float on some
> >    wavs.  
> 
> Are you sure the array you are reading into is large enough? Both the
> files in tha tar.bz2 file were stereo. When you read a stereo file with
> sf_readf_float, and ask for N frames, the destination array must be 
> 2 * N in size.

Yes, the buffer is info->frames*info->channels big.

It's exactly the same code in both cases - one file segfaults, the
other plays.
 
> > The odd thing is, if I re-save the file in the same format,
> >    (with something like audacity or sweep) it works.  
> 
> Audacity and Sweep both use libsndfile for file I/O.

I kinda assumed they would - which just makes it all weirder.

> > I thought I must
> >    have been confused, and that the format was different the next time
> >    around, but it isn't - at least as far as libsndfile's SF_INFO can
> >    tell me.
> > 
> >    I don't think the file is broken, 
> 
> Correct, the files are fine.

And yet one kills libsndfile.  Strange.

> Erik