/// <summary> /// Place this buffer back to record more audio /// </summary> public void Reuse() { // TEST: we might not actually need to bother unpreparing and repreparing MmException.Try(WaveInterop.waveInUnprepareHeader(waveInHandle, header, Marshal.SizeOf(header)), "waveUnprepareHeader"); MmException.Try(WaveInterop.waveInPrepareHeader(waveInHandle, header, Marshal.SizeOf(header)), "waveInPrepareHeader"); //System.Diagnostics.Debug.Assert(header.bytesRecorded == 0, "bytes recorded was not reset properly"); MmException.Try(WaveInterop.waveInAddBuffer(waveInHandle, header, Marshal.SizeOf(header)), "waveInAddBuffer"); }
private GCHandle hThis; // for the user callback /// <summary> /// creates a new wavebuffer /// </summary> /// <param name="waveInHandle">WaveIn device to write to</param> /// <param name="bufferSize">Buffer size in bytes</param> public WaveInBuffer(IntPtr waveInHandle, Int32 bufferSize) { this.bufferSize = bufferSize; buffer = new byte[bufferSize]; hBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned); this.waveInHandle = waveInHandle; header = new WaveHeader(); hHeader = GCHandle.Alloc(header); header.dataBuffer = hBuffer.AddrOfPinnedObject(); header.bufferLength = bufferSize; header.loops = 1; hThis = GCHandle.Alloc(this); header.userData = (IntPtr)hThis; MmException.Try(WaveInterop.waveInPrepareHeader(waveInHandle, header, Marshal.SizeOf(header)), "waveInPrepareHeader"); //MmException.Try(WaveInterop.waveInAddBuffer(waveInHandle, header, Marshal.SizeOf(header)), "waveInAddBuffer"); }