On 6/26/07, Justin Tulloss <jmtulloss at gmail.com> wrote: > > Hello, > > I'm just getting into PulseAudio and I'm looking forward to using it for > some challenging projects. I do have a few questions however: > > 1. Is good floating point performance necessary? I saw that some of your > algorithms do rely on floating point, but I didn't get far enough into it to > see whether it was necessary for basic PCM routing. No, it isn't neccesarily. I been working with pulseaudio in an embedded enviroment for a while. There are two current floating point weaknesses. These are software volume and resampling. However I had made a patch to use a newer fixed point speex resampler. It got to the list for a little while. I'll resubmit once the speex stuff is done and stable. 2. How do direct plugin sources/sinks work? For example, the gstreamer > plugin communicates directly with pulse. Therefore it doesn't show up as a > source in the manager. Is there a way to get a handle to that source? For > instance, if I had 2 sinks (A and B) and I wanted to say that all alsa sound > (from the alsa plugin) should go to sink A where all gstreamer audio should > go to sink B, how would I do that? That's a contrived example, but I am > looking for that kind of flexibility. This is very easy. There is a API to get current sources and sinks. Each source can tell what sink it wants to go to. (ie. gst-launch audiotestsrc | pulsesink device=secondaudiodevice) 3. Is anybody actively working on a D-Bus control for this? Seems like it > would be easy enough. I believe there has already been work to integrate dbus with pulse's mainloop and there seems to be some code that does this. I haven't found it necessary to use because the native protocol works well. (although I use dbus for everything else.) 4. How do you define policy for HAL events? I don't see an obvious way of > saying "now that this sink is connected, all audio goes to it and the old > sink will be turned off" Sorry, This is the only question I don't know.... Keith -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20070627/d735588f/attachment.htm>
