On Thu, Jun 11, 2009 at 04:50:11PM +0200, Andrea Palmatè wrote: > so basically i must spawn a thread with its timer that call fetchSamples > every tot ms and play them?
Yes. Not *necessarely* a thread though. Actually, as long as the GUI owns the sound_handler or has a way to access it, it could as well fetch the samples from main thread. The thing is that Gnash core lib itself will NOT send anything to a sound card, rather someone must pull samples out of it. For SDL it's the sound_handler subclass itself setting up a thread. You may opt to delegate the pulling and actual sound subsystem interface to the GUI... > SDL callback how many times is called in a second? Adding a log_debug shows it's called between 20 and 22 times, Each time it requests 8192 bytes (must be it's soundcard buffer). This is between 40960 and 45056 "stereo samples" per second, aiming at a rounded and nominal 44100 output sample rate. Just note that the sound_handler::fetchSound() currently speaks "mono samples" (for no special reason, just a bad idea still not fixed) so the target is really fetching 88200 "samples" from sound_handler::fetchSamples() --strk; Free GIS & Flash consultant/developer () ASCII Ribbon Campaign http://foo.keybit.net/~strk/services.html /\ Keep it simple! _______________________________________________ Gnash-dev mailing list [email protected] http://lists.gnu.org/mailman/listinfo/gnash-dev
