Whoo! (I can't wait to see that in PulseAudio!) Cheers, -- Marc-Andr? Lureau, GSmartMix On 5/14/07, keith preston <keithpre at gmail.com> wrote: > > Marc-Andr?, > > > Have you been working on a fixed point resampling/mixing patch already? > > > > I've actually been working on pulseaudio a lot lately. Although nothing > is quite ready for patches yet, here a sample of what I've been working on: > > libspeex resampling patch. I have this working in certain cases. Most > notably the embedded case, which is S16_LE audio in 1 or 2 channels. I > haven't really followed up with the libspeex guys, but I was going to wait > for the resampling code API to stabilize in libspeex and be released, before > I added a patch with a dependency to it. > > software volume/mixing (sample-utils.c) I've been looking and thinking > about how to rewrite this for efficiency. I found on my embedded device CPU > Utilization for from 5% to 100% whenever I have two streams with software > volumes. As a temporary measure for myself, my embedded platform has some > proprietary audio mixing code I am using, but this code should be cleaned up > a bit. > > Audio Class Policy, this is really the big one and I'm sure you'll be > interested in with the gsmartmix stuff. I've added the concept of audio > class to all the internal streams in pulseaudio and have a module that > arbitrates between streams actively preempting streams, changing volume and > such. It is working pretty well right now. I can have my music turn down > when sound events happen that need my attention, I can block all audio when > a VOIP call comes in, etc... > > Keith Preston > > > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at mail.0pointer.de<https://mail.google.com/mail?view=cm&tf=0&to=pulseaudio-discuss at mail.0pointer.de> > https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20070514/d1f152c0/attachment.htm>
