[alsa-devel] Maximum buffer size on HDA
mznyfn at 0pointer.de
Thu Jun 19 19:42:38 CEST 2008
On Mon, 16.06.08 14:37, Lennart Poettering (mznyfn at 0pointer.de) wrote:
> > I'm not quite sure what you like to change. Make 1MB limit smaller? Or
> > change the default preallocated size? Or remove preallocation? I think
> > that it might make sense to increase the default preallocation value to
> > 128KB or 192KB.
> For PulseAudio it would be of big benefit if we could change the
> default in a way the for the highest sensible sampling rate/number of
> channels/sample type we'd always be able to get a two-second
> buffer. Windows and Mac use 2s of buffer by default, and I think it
> would make sense for PulseAudio to do that too.
> i.e. if the soundcard can do 2ch/16bit/44100hz at best I'd like to
> have a buffer size of up to 344KB; if the soundcard can to
> 5.1/32bit/48000 at best then i'd like to have a buffer of up to 2.2MB
> or so.
Takashi, Jarsolav, how can I bribe you into increasing this limit?
What are the implications of this change? (Just wondering if it would
make sense for us to change this limit in the Fedora kernel packages)
Lennart Poettering Red Hat, Inc.
lennart [at] poettering [dot] net ICQ# 11060553
http://0pointer.net/lennart/ GnuPG 0x1A015CC4
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