rm example
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package main
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import (
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"encoding/hex"
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"fmt"
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"github.com/nareix/mp4"
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"os"
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)
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func DemuxExample() {
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file, _ := os.Open("test.mp4")
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demuxer := &mp4.Demuxer{R: file}
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demuxer.ReadHeader()
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fmt.Println("Total tracks: ", len(demuxer.Tracks))
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fmt.Println("Duration: ", demuxer.TrackH264.Duration())
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count := demuxer.TrackH264.SampleCount()
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fmt.Println("SampleCount: ", count)
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demuxer.TrackH264.SeekToTime(2.3)
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var sample []byte
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for i := 0; i < 5; i++ {
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pts, dts, isKeyFrame, data, err := demuxer.TrackH264.ReadSample()
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fmt.Println("sample #",
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i, pts, dts, isKeyFrame, len(data),
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demuxer.TrackH264.CurTime(),
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err,
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)
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if i == 3 {
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sample = data
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}
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}
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fmt.Println("Sample H264 frame:")
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fmt.Print(hex.Dump(sample))
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fmt.Println("Duration(AAC): ", demuxer.TrackAAC.Duration())
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fmt.Println("SampleCount(AAC): ", demuxer.TrackAAC.SampleCount())
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demuxer.TrackAAC.SeekToTime(1.3)
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for i := 0; i < 5; i++ {
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pts, dts, isKeyFrame, data, err := demuxer.TrackAAC.ReadSample()
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fmt.Println("sample(AAC) #",
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i, pts, dts, isKeyFrame, len(data),
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demuxer.TrackAAC.CurTime(),
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err,
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)
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if i == 1 {
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sample = data
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}
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}
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fmt.Println("Sample AAC frame:")
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fmt.Print(hex.Dump(sample))
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}
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func MuxExample() {
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infile, _ := os.Open("test.mp4")
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outfile, _ := os.Create("test.out.mp4")
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demuxer := &mp4.Demuxer{R: infile}
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demuxer.ReadHeader()
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muxer := &mp4.Muxer{W: outfile}
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muxer.AddH264Track()
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muxer.TrackH264.SetH264PPS(demuxer.TrackH264.GetH264PPS())
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muxer.TrackH264.SetH264SPS(demuxer.TrackH264.GetH264SPS())
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muxer.TrackH264.SetTimeScale(demuxer.TrackH264.TimeScale())
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muxer.WriteHeader()
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for {
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pts, dts, isKeyFrame, data, err := demuxer.TrackH264.ReadSample()
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if err != nil {
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break
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}
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fmt.Println("sample #", dts, pts)
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muxer.TrackH264.WriteSample(pts, dts, isKeyFrame, data)
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}
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muxer.WriteTrailer()
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outfile.Close()
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}
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func main() {
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//DemuxExample()
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MuxExample()
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}
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