60 lines
1,011 B
Go
60 lines
1,011 B
Go
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package main
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import (
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"bytes"
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"fmt"
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"io"
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"time"
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"github.com/gopxl/beep"
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"github.com/gopxl/beep/mp3"
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"github.com/gopxl/beep/speaker"
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"github.com/gopxl/beep/wav"
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)
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type Player struct {
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rate beep.SampleRate
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}
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func NewPlayer() *Player {
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p := &Player{}
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return p
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}
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func (p *Player) initSpeaker(rate beep.SampleRate) {
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if p.rate != rate {
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speaker.Init(rate, rate.N(time.Second/10))
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}
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}
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func (p *Player) Play(audio []byte, mimeType string) error {
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var streamer beep.StreamCloser
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var err error
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var format beep.Format
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r := io.NopCloser(bytes.NewBuffer(audio))
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switch mimeType {
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case "audio/mpeg":
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streamer, format, err = mp3.Decode(r)
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if err != nil {
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return err
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}
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defer streamer.Close()
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p.initSpeaker(format.SampleRate)
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case "audio/wav":
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streamer, format, err = wav.Decode(r)
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if err != nil {
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return err
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}
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defer streamer.Close()
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p.initSpeaker(format.SampleRate)
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default:
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return fmt.Errorf("unknown format %s", mimeType)
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}
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speaker.Play(streamer)
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return nil
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}
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