Hallo, Arve Knudsen hat gesagt: // Arve Knudsen wrote:
On Mon, 8 Dec 2003 11:49:45 +0100, Frank Barknecht <[EMAIL PROTECTED]> wrote: >Which reminds me to ask: how does Portaudio currently cope with >user-defined, not enumerable interfaces in ALSA? Only concrete hardware devices are considered at the moment as far as I can tell, that is, we enumerate based on snd_card_next. I'll have to admit I never really got into the ALSA configuration system. I might look into it later, once I'm happy with the basic functionality of the implementation (getting there).
Ah, that would be cool. I'm not really intimate with PortAudio, but my main application, Pure Data (not written by me ;), is using it in parallel to direct ALSA/JACK/OSS backends. The goal is, to switch to PA fully, but it would very annoying not to be able to select ALSA devices by name.
Actually from a developer's perspective, ALSA's PCM configuration system is rather simple: Just use the name (char*) the user provides where you'd otherwise use something like "hw:0" or "default". The only problem is, that this is not enumarable. But not providing the possibility for a user, to specify a PCM name, is like trying to outsmart the user.
There is infrastructure support for custom stream info when opening a stream, so it would be possible to pass a device string through this, but it is unimplemented as of yet.
Regards
Arve Knudsen
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