Re: [Bluez-devel] Comments about the Logitech/HP stereo headphones

[Brad Midgley <bmidgley@xmission.com>]

Guylhem

> IMHO a2dp will be mostly useful for embedded system or in specific
> applications on desktop systems (xmms, etc). Having to use alsa is at
> best useless and at worse a potential showstopper.

we will keep and update the standalone streamer. it doesn't integrate 
well with other apps but you can deal with that when embedding.

> - on desktop systems a2dp could also be managed by a standalone
> application, which could be an audio out plugin for xmms/mplayer etc.
> This plugin would also manage sbc encoding and a2dp streaming until
> some dedicated tool manage a2dp streaming.

We can write one plugin for alsa and get support for 
xmms/mplayer/xine/etc. if someone else wants native plugins for all 
those apps, that's great.

> So my suggestion, at least until a good strategy has been defined, would
> be to use a2play as a work base, and add mp3/ogg decoding - the "all
> in one" approach. Quite easy to test, enhance, fix, finetune, etc -
> better IMHO that separate tools for the moment.

i think this could be an attractive utility for embedded work, but i 
would be careful how you add mp3 decode. my gumstix has analog audio 
out. I wouldn't want to use the space for an app that can decode mp3 
(new a2play) but can't also send it to analog out.

> Later on, like rfcomm manages rfcomm0 etc. entries, some a2dp tool
> could bind a2dp peripherals to /dev/a2dpN where SBC audio would be
> expected and streamed to the a2dp peripheral bound there.

managing connections is kind of a pain. it can't be done entirely in 
kernel space. you can see how this gets spread into the btsco daemon.

Brad


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