Tapping into an audio channel

[amotl]

Hi there,

extending the scope of Saraswati, we discussed a feature to make it possible to tap into a recording channel (i.e. GStreamer pipeline) in playing state. For this to happen, we need two mechanisms:

• A signalling pathway to tell a running Saraswati instance about an interest on one or more specific audio channels.
• A subsystem to attach another sink element to an existing GStreamer pipeline in order to output/send the selected audio channels to another system which, in turn, will be able to broadcast the audio stream to any number of "live" listeners.

With kind regards,
Andreas.

[amotl]

At [1], weef shared the excellent icecast-autostream.sh by @gdebat with us the other day, which does exactly what we are aiming at. It uses a PulseAudio source element and connects it to an Icecast/SHOUTcast sink element.

[1] https://community.hiveeyes.org/t/system-fur-kontinuierliche-audio-aufzeichnung-bob-projekt-phase-1/728/17