[PD] Large File Support on Linux (was: readsf fails to read 32 bits float wav)

[Miller Puckette]

It's in the source - but Pd has to be compiled with '_LARGEFILE64_SOURCE'
defined for this to work.  Through 0.43 the configure script I was using
was checking for this somehow (too complicted for me to understand how).

Anyhow, this is a bug all right - thanks for reporting it!

... and can you tell me what OS you're on so I can check if I'm actually
fixing it?

thanks
Miller



On Sat, Mar 16, 2013 at 10:57:46PM +0100, Charles Goyard wrote:
> Darn, I just found there's a feature request for just that from IOhannes
> pending since 2007.
> 
> https://sourceforge.net/tracker/index.php?func=detail&aid=1638701&group_id=55736&atid=478073
> 
> Cheers,
> -- 
> Charles
> 
> 
> Charles Goyard wrote:
> > Hi,
> > 
> > after some research, it seems more related to the size of the file after
> > all. I thought the problem was 32 bits files because it worked when I
> > converted them to 16 bits. But it was just the file size dropped under
> > 2gb.
> > 
> > To sum up: a file over about 2Gb fails to open. This is related to how
> > Linux handles large files on 32 bits systems.
> > 
> > On my test patch I get the "done" bang as soon as I send the "start"
> > message.
> > 
> > Reading the code, it looks like the s_path.c/sys_open() oflags is
> > missing O_LARGEFILE support. pd-extended and pd-l2ork suffer from the
> > same.
> > 
> > Am I right there's no Large File Support for pd on 32 bits Linux ? If so
> > that's a major shortcoming, and something a bit heavy to fix. Does it
> > work out of the box on 64 bits linux ?
> > 
> > Thanks,
> > 
> > -- 
> > Charles
> > 
> > Hans-Christoph Steiner wrote:
> > > 
> > > Sounds like it, especially if you can reproduce it everytime.  File a
> > > bug report and include as simple a patch as possible to reproduce the
> > > issue, and the soundfile.
> > > 
> > > > today I noticed a readsf~ (on vanilla) opening a 5 wave file containing
> > > > 32 bits float audio fails silently. The doc says 4 bytes is unavailable
> > > > for AIFF, but I use WAVE.
> > > > 
> > > > The file is a 5 channels WAVE file with 5 tracks 32bits float at 48kHz.
> > > > 
> > > > Converting the audio to 16 bits PCM works.
> > > > 
> > > > Is that a bug ? On vanilla 0.44.
> 
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