mirror of https://bitbucket.org/ausocean/av.git
41 lines
957 B
Go
41 lines
957 B
Go
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// +build pi0
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package main
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import (
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"log"
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"os/exec"
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"time"
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)
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const audioCmd = "play"
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func initCommand() {
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const soundcardPath = "/usr/share/doc/audioInjector/asound.state.RCA.thru.test"
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const sleepDur = 1 * time.Second
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// alsactl is a command that ensures the sound will be played through the correct soundcard.
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path, err := exec.LookPath("alsactl")
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if err != nil {
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log.Fatalf("fatal: didn't find 'alsactl' executable\n")
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}
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log.Printf("debug: 'alsactl' executable is in '%s'\n", path)
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for {
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cmdInit := exec.Command("alsactl", "-f", soundcardPath, "restore")
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err := cmdInit.Run()
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if err == nil {
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break
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}
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log.Printf("fatal(ish): cmd.Run() for 'alsactl' failed with '%s'\n", err)
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time.Sleep(sleepDur)
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}
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// Making sure that play command is on the pi.
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path, err = exec.LookPath(audioCmd)
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if err != nil {
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log.Fatalf("fatal: didn't find 'play' executable\n")
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}
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log.Printf("debug: 'play' executable is in '%s'\n", path)
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}
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