On 24/5/20 8:21 am, Paul Davis wrote: > I've already tried to point out the basics but I guess my hints weren't > taken: > > * RB uses gstreamer for audio I/O > * gstreamer has a native JACK module > * you need to configure gstreamer's JACK module (the buffer sizes in > particular need attention) Don't disagree on those points, you're 100% correct on the existence of a JACK plug-in for GStreamer and GStreamer's role in audio transport for RhythmBox. > * you need to tell RB to use the module (or tell gstreamer to do that all > the time) This is where we have a sticking point. If there's a way to configure that in RhythmBox, it is *well* hidden. Fur sure, if you can get into GStreamer's code and change the flow graph so it terminates with JACK, then yes, it definitely will stream to JACK directly. I just had a look at the sources for RhythmBox… it uses autoaudiosink (see backends/gstreamer/rb-player-gst.c 683-713), which in theory could use the JACK sink plug-in, and might do so in some circumstances. The sticking point is https://gstreamer.freedesktop.org/documentation/autodetect/autoaudiosink.html provides no way to elect JACK as the preferred output. It's not obvious how the user directs the audio to their _preferred_ output channel. -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
