42 lines
591 B
Go
42 lines
591 B
Go
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package audio
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import (
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"bytes"
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"io"
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"time"
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"github.com/go-audio/wav"
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"github.com/tcolgate/mp3"
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)
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func MP3Duration(a []byte) (time.Duration, error) {
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r := bytes.NewReader(a)
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d := mp3.NewDecoder(r)
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var f mp3.Frame
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skipped := 0
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var t time.Duration
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for {
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if err := d.Decode(&f, &skipped); err != nil {
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if err == io.EOF {
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break
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}
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return 0, err
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}
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t += f.Duration()
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}
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return t, nil
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}
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func WAVDuration(a []byte) (time.Duration, error) {
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r := bytes.NewReader(a)
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dur, err := wav.NewDecoder(r).Duration()
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if err != nil {
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return 0, err
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}
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return dur, nil
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}
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