声音部分的代码仍需调试，现在panic

lib/audiodriver/wavfifo.go

@@ -23,7 +23,7 @@ const BitsPerByte = 8
 
 type WavFIFODriver struct {
 	PCM        <-chan [BufferSize]byte
-	WaveHeader <-chan *WavHeader
+	WaveHeader *WavHeader
 	closed     <-chan struct{}
 	cancel     func()
 }
@@ -42,19 +42,19 @@ func (w *WavFIFODriver) Open() error {
 }
 
 func (w *WavFIFODriver) Close() error {
-	defer w.cancel()
+	w.cancel()
 	return nil
 }
 
 func (w *WavFIFODriver) Properties() []prop.Media {
-	waveHeader := <-w.WaveHeader
-	logrus.Debugf("wave header: %v", waveHeader)
+	logrus.Debugf("wave header: %v", w.WaveHeader)
 	return []prop.Media{
 		{
 			Audio: prop.Audio{
-				SampleRate:    int(waveHeader.SampleRate),
-				ChannelCount:  int(waveHeader.NumChannels),
-				Latency:       waveHeader.GetLatnecy(),
+				SampleRate:    int(w.WaveHeader.SampleRate),
+				ChannelCount:  int(w.WaveHeader.NumChannels),
+				SampleSize:    int(w.WaveHeader.BitsPerSample),
+				Latency:       w.WaveHeader.GetLatnecy(),
 				IsFloat:       false, // just 8bit or 16bit with qemu
 				IsBigEndian:   false, // qemu should be little endian
 				IsInterleaved: true,
@@ -64,13 +64,14 @@ func (w *WavFIFODriver) Properties() []prop.Media {
 }
 
 func (w *WavFIFODriver) AudioRecord(p prop.Media) (audio.Reader, error) {
-	a := wave.NewInt16Interleaved(wave.ChunkInfo{
-		Len:          BufferSize / int(p.SampleSize/BitsPerByte),
-		Channels:     p.ChannelCount,
-		SamplingRate: p.SampleRate,
-	})
+	logrus.Debug(p)
 
 	reader := func() (wave.Audio, func(), error) {
+		a := wave.NewInt16Interleaved(wave.ChunkInfo{
+			Len:          BufferSize / int(p.SampleSize/BitsPerByte),
+			Channels:     p.ChannelCount,
+			SamplingRate: p.SampleRate,
+		})
 		select {
 		case <-w.closed:
 			return nil, func() {}, io.EOF