On Sun, May 09, 2010 at 09:24:27AM +0300, Marco Ballesio wrote: > On Fri, Apr 23, 2010 at 6:10 PM, Rafal Wojtczuk <rafal at invisiblethingslab.com> wrote: > > Again, can I have a simple sound sharing over network protocol, pretty > > pretty please ? Raw audio frames + simple synchronization, anyone ? > stupid question, but.. is GStreamer out of your scope here? Could you be more specific, and suggest the appropriate gst-launch pipelines ? Particularly, over what protocol can we stream the data ? I tried the following on the client gst-launch pulsesrc ! tcpclientsink host=xxx port=12345 protocol=GST_TCP_PROTOCOL_GDP and on the server gst-launch tcpserversrc port=12345 host=xxx protocol=GST_TCP_PROTOCOL_GDP ! pulsesink it works nicely. But with this approach, when there is no audio activity on the client, gst-launch transmits silence (and noticeably burns CPU). BTW, the parec solution from https://tango.0pointer.de/pipermail/pulseaudio-discuss/2010-May/007107.html has the same problem; module-pipe-sink behaves better. Does anyone know about pulseaudio "module-gdp-sink", that would speak GDP to some output pipe ? And there is a question on the complexity of the underlying protocol; jugding by http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/gstreamer-libs-gstdataprotocol.html GDP is simple but nontrivial; and there is still data inside, spit by pulsesrc whose format I don't know (hopefully it is pure pcm data, can anyone confirm ?). Regards, Rafal Wojtczuk The Qubes OS Project http://qubes-os.org
