: Bluez audio routing: introducing switch alsa plugin

RFC Fabien Chevalier 2 participants 2 messages Dec 10, 2006 – Dec 11, 2006 Bluetooth drivers

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Fabien Chevalier

author

2006-12-10 15:51 UTC #0 lore raw

All,

I got here a suggestion for audio routing.
I take here as assumption that it is a possibility that sco and a2dp plugins are different.

The idea is to bring in the picture a new plugin that i would call conveniently the 'switch' plugin.
As its name suggests, its role would be to route to either one PCM stream or another PCM.

We could imagine that per default the plugin would route audio to wired PCM IO, and when notified that a alternate PCM is ready, would switch to this plugin.

This would give sth like that:

audio application --> switch plugin --> wired io PCM

			|
			|
			----> bluetooth plugin --> bt.audiod

This is an audio routing suggestion that could be used for both SCO and A2DP.

as usual, comments are welcomed,

Cheers,

Fabien

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Brad Midgley

2006-12-11 15:29 UTC #1 lore raw

Fabien

Quoted 4 lines

The idea is to bring in the picture a new plugin that i would call conveniently the 'switch' plugin.
As its name suggests, its role would be to route to either one PCM stream or another PCM.

This approach would be ok I think. It's an implementation detail.

One motivation for this approach would be keeping a2dp and sco daemons separate. Are you still interested in doing it that way?

We have been running with the assumption that we will have a single daemon for sco and a2dp. So Connect(addr) would attempt to make control connections for both protocols. Does this become too difficult?

Brad