Remote Audio

[davxy]

Is there a way to listen to audio coming from the remote applications? If I'm not wrong currently only video output can be shared.

If not currently possible, is this planned?

[any1]

Yeah, this is planned, but it looks like I didn't make an issue for it.

The main hurdles are the following:

• There does not exist a protocol extension for compressed audio. We would have to make one and advocate for its adoption.
• Because framebuffer updates may be sent as large continuous blobs, audio packets may be stalled for the duration of sending a framebuffer update. This means that audio playback needs to be delayed for the maximum transfer duration of such an update for smooth playback.
• Some applications require audio and video to be synchronised. We've added timestamps to video frames, but it's an undocumented extension that's only supported by wlvncc currently. We would also have to advocate the adoption of video frame timestamps. Strict A/V sync is optional though. Could be added later.

[soreau]

For what it's worth, as a workaround for pulse (or pipewire-pulse) users on the LAN, you can use RTP multicast like so:

Server: pactl load-module module-null-sink sink_name=rtp pactl load-module module-rtp-send source=rtp.monitor pactl set-default-sink rtp

Clients: pactl load-module module-rtp-recv

[heroin-moose]

Maybe it's possible to start with QEMU Audio and then extend it to support the compressed audio format?