39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
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package extractor
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import (
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"log"
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"os/exec"
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)
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const maxConcurrentSessions = 10
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var sessionSem chan struct{}
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// Init starts dbus, PulseAudio, and prepares the session semaphore.
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func Init() {
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// Start dbus (Chrome needs it for accessibility/service queries)
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if err := exec.Command("mkdir", "-p", "/var/run/dbus").Run(); err == nil {
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if err := exec.Command("dbus-daemon", "--system", "--nofork").Start(); err != nil {
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log.Printf("extractor: warning: failed to start dbus: %v", err)
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}
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}
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if err := exec.Command("pulseaudio", "--start", "--exit-idle-time=-1").Run(); err != nil {
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log.Printf("extractor: warning: failed to start PulseAudio: %v", err)
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}
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// Create a null-sink as the default audio target for all sessions
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exec.Command("pactl", "load-module", "module-null-sink",
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"sink_name=virtual_sink",
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"sink_properties=device.description=VirtualSink").Run()
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exec.Command("pactl", "set-default-sink", "virtual_sink").Run()
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sessionSem = make(chan struct{}, maxConcurrentSessions)
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log.Println("extractor: initialized")
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}
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// Stop kills PulseAudio.
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func Stop() {
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exec.Command("pulseaudio", "--kill").Run()
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log.Println("extractor: stopped")
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}
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