Пример #1
0
 /// <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");
 }
Пример #2
0
        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;
            this.buffer       = new byte[bufferSize];
            this.hBuffer      = GCHandle.Alloc(buffer, GCHandleType.Pinned);
            this.waveInHandle = waveInHandle;

            header              = new WaveHeader();
            hHeader             = GCHandle.Alloc(header, GCHandleType.Pinned);
            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");
        }