debug needed

lib/audiodriver/wavfifo.go

@@ -73,6 +73,7 @@ func (w *WavFIFODriver) Properties() []prop.Media {
 }
 
 func (w *WavFIFODriver) AudioRecord(p prop.Media) (audio.Reader, error) {
+	logrus.Debugf("wave header: %v", w.waveHeader)
 	offset := FmtHeaderOffset + FmtHeaderIDSize + FmtHeaderChunkSizeSize + int64(w.waveHeader.Size) + DataChunkIDSize + DataChunkSizeSize
 	if _, err := w.f.Seek(
 		offset,
@@ -105,6 +106,7 @@ func (w *WavFIFODriver) AudioRecord(p prop.Media) (audio.Reader, error) {
 		case <-w.closed:
 			return nil, func() {}, io.EOF
 		case pcmData, ok := <-pcm:
+			logrus.Debug("got %d bytes pcm data", len(pcmData))
 			if !ok {
 				return nil, func() {}, io.ErrClosedPipe
 			}