func appRun() {
defer closer.Close()
closer.Bind(func() {
log.Println("Bye!")
})
if err := portaudio.Initialize(); paError(err) {
log.Fatalln("PortAudio init error:", paErrorText(err))
}
closer.Bind(func() {
if err := portaudio.Terminate(); paError(err) {
log.Println("PortAudio term error:", paErrorText(err))
}
})
var input io.Reader
if strings.HasPrefix(*uri, "http://") || strings.HasPrefix(*uri, "https://") {
resp, err := http.Get(*uri)
if err != nil {
log.Fatalln(err)
}
closer.Bind(func() {
resp.Body.Close()
})
input = resp.Body
} else {
f, err := os.Open(*uri)
if err != nil {
log.Fatalln(err)
}
closer.Bind(func() {
f.Close()
})
input = f
}
dec, err := decoder.New(input, samplesPerChannel)
if err != nil {
log.Fatalln(err)
}
closer.Bind(dec.Close)
info := dec.Info()
log.Println(fileInfoTable(info))
dec.SetErrorHandler(func(err error) {
log.Println("[WARN]", err)
})
go func() {
dec.Decode()
dec.Close()
}()
var wg sync.WaitGroup
var stream *portaudio.Stream
callback := paCallback(&wg, int(info.Channels), dec.SamplesOut())
if err := portaudio.OpenDefaultStream(&stream, 0, int32(info.Channels), sampleFormat, info.SampleRate,
samplesPerChannel, callback, nil); paError(err) {
log.Fatalln("PortAudio error:", paErrorText(err))
}
closer.Bind(func() {
if err := portaudio.CloseStream(stream); paError(err) {
log.Println("[WARN] PortAudio error:", paErrorText(err))
}
})
if err := portaudio.StartStream(stream); paError(err) {
log.Fatalln("PortAudio error:", paErrorText(err))
}
closer.Bind(func() {
if err := portaudio.StopStream(stream); paError(err) {
log.Fatalln("[WARN] PortAudio error:", paErrorText(err))
}
})
log.Println("Playing...")
wg.Wait()
}
//Run starts the application run loop
func (a *App) Run() {
closer.Bind(a.cleanup)
closer.Checked(a.internalRun, true)
defer closer.Close()
}