Subject: [linux-audio-dev] API for Input / Output plugins
From: J_Zar (romaninz_AT_aruba.it)
Date: Wed May 12 2004 - 00:28:48 EEST
Hi all,
the reason of this mail is searching for opinions about an API for input /
output plugins.
Besides I see around the LADSPA API for sound processing but nothing similar
for input / output.
From some months I'm playing around with audio I/O libraries: I met too much
libraries but no one really complete satisfacting my needs( thinking to
latency and other advanced issues having on djing programs as an example).
Not talking about driver complete support: PortAudio does not support ALSA,
libao does not support Win,MacOsX and so on...
Playing with plugins about some program I had another problem: I played with
Alsaplayer ( very nice and powerful program! ) trying to reuse its plugins. I
found although, that using them means including ( with hardcode ) lot of the
Alsaplayer code. I played with Xmms too: this time the work is easier and
there are all sort of plugins but mostly are thinked for merely playback
withouth latency control... ;-(
However, what about writing an advanced API for I/O plugins, completely
detached from other programs ( as Xmms ), potentially multiplatform, to suit
the needs of the big part of audio programs? I mean, a plugin written for a
certain API ( i.e. ALSA, OSS, Jack, OsX etc... ) will be usable for all other
applications with all advantages of a plugin architecture and standard
code... Input plugins are important too: I see lot of apps rewriting
continuosly Ogg, Mp3 or Wav support in any kind of flavour, but not always
reusable code. About writing it once for all?
I wanna know: there are people interested in this? My discussion is out of
any order, not clever, low level? There is disadvatages on this idea?
Suggestions?
If there is a reason: Plugin API For Input Output ( PAFAIO ) sounds well???
Hoping in some answers.... Cheers,
--J_Zar Gianluca Romanin ---------------- see you at OpenJay.Org
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