44 lines
847 B
Go
44 lines
847 B
Go
package main
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import (
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"bufio"
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"fmt"
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"io"
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"log"
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"os"
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"git.netflux.io/rob/avframes/pkg/mpeg"
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)
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const fname = "/home/rob/share/home-office/example.mp3"
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func main() {
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f, err := os.Open(fname)
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if err != nil {
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log.Fatal(err)
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}
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bufreader := bufio.NewReader(f)
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buf := make([]byte, 4)
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var i int
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for {
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_, err := io.ReadFull(bufreader, buf)
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if err != nil {
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if err == io.EOF {
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break
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}
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log.Fatal(err)
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}
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if h := mpeg.Header(buf); h.IsValid() {
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fmt.Printf("Got header: %v, audio version: %d, layer index: %d, bitrate: %d, samplerate: %d, samplesPerFrame: %d, padding: %d, size: %d\n", h, h.AudioVersionId(), h.Layer(), h.BitRate(), h.SampleRate(), h.SamplesPerFrame(), h.PaddingBytes(), h.Len())
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bufreader.Discard(h.Len() - 4)
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} else {
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fmt.Println("Discarding a byte")
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bufreader.Discard(3)
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}
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i++
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}
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}
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