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

[Charles Goyard]

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.