47 lines
1.3 KiB
Plaintext
47 lines
1.3 KiB
Plaintext
JACK <--> ALSA PCM plugin
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=========================
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This plugin converts the ALSA API over JACK (Jack Audio Connection
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Kit, http://jackit.sf.net) API. ALSA native applications can work
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transparently together with jackd for both playback and capture.
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ALSA apps (playback) -> ALSA-lib -> JACK plugin -> JACK deamon
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ALSA apps (capture) <- ALSA-lib <- JACK plugin <- JACK daemon
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This plugin provides the PCM type "jack". The typical configuration
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looks like below:
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pcm.jack {
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type jack
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playback_ports {
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0 alsa_pcm:playback_1
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1 alsa_pcm:playback_2
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}
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capture_ports {
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0 alsa_pcm:capture_1
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1 alsa_pcm:pcapture_2
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}
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}
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Put the above to ~/.asoundrc (or /etc/asound.conf), and use "jack" PCM
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with your ALSA apps. For example,
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% aplay -Djack foo.wav
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The jack plugin can have two config options: playback_ports and
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capture_ports. Both are compound type config, including the following
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format:
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{
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channel port-name
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channel port-name
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...
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}
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The first argument is the channel number (zero-based) and the second
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is the corresponding JACK port name.
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The plugin is installed in /usr/lib/alsa-lib directory as default,
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which is the default search path of additional plugins for alsa-lib.
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On a 64bit system like x86-64, the proper prefix option (typically,
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--prefix=/usr/lib64) must be given to configure script.
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