public void InitWaveOutDevice(WaveOut device, string path)
        {
            Stop();

            if (ActiveStream != null)
            {
                SelectionBegin  = TimeSpan.Zero;
                SelectionEnd    = TimeSpan.Zero;
                ChannelPosition = 0;
            }

            StopAndCloseStream();


            try
            {
                waveOutDevice       = device;
                ActiveStream        = new Mp3FileReader(path);
                inputStream         = new WaveChannel32(ActiveStream);
                sampleAggregator    = new SampleAggregator(fftDataSize);
                inputStream.Sample += inputStream_Sample;
                waveOutDevice.Init(inputStream);
                ChannelLength = inputStream.TotalTime.TotalSeconds;
                //FileTag = TagLib.File.Create(path);
                GenerateWaveformData(path);
                CanPlay   = true;
                IsPlaying = true;
            }
            catch
            {
                ActiveStream = null;
                CanPlay      = false;
            }
        }
        private void waveformGenerateWorker_DoWork(object sender, DoWorkEventArgs e)
        {
            WaveformGenerationParams waveformParams      = e.Argument as WaveformGenerationParams;
            Mp3FileReader            waveformMp3Stream   = new Mp3FileReader(waveformParams.Path);
            WaveChannel32            waveformInputStream = new WaveChannel32(waveformMp3Stream);

            waveformInputStream.Sample += waveStream_Sample;

            int frameLength    = fftDataSize;
            int frameCount     = (int)((double)waveformInputStream.Length / (double)frameLength);
            int waveformLength = frameCount * 2;

            byte[] readBuffer = new byte[frameLength];
            waveformAggregator = new SampleAggregator(frameLength);

            float maxLeftPointLevel  = float.MinValue;
            float maxRightPointLevel = float.MinValue;
            int   currentPointIndex  = 0;

            float[]      waveformCompressedPoints = new float[waveformParams.Points];
            List <float> waveformData             = new List <float>();
            List <int>   waveMaxPointIndexes      = new List <int>();

            for (int i = 1; i <= waveformParams.Points; i++)
            {
                waveMaxPointIndexes.Add((int)Math.Round(waveformLength * ((double)i / (double)waveformParams.Points), 0));
            }
            int readCount = 0;

            while (currentPointIndex * 2 < waveformParams.Points)
            {
                waveformInputStream.Read(readBuffer, 0, readBuffer.Length);

                waveformData.Add(waveformAggregator.LeftMaxVolume);
                waveformData.Add(waveformAggregator.RightMaxVolume);

                if (waveformAggregator.LeftMaxVolume > maxLeftPointLevel)
                {
                    maxLeftPointLevel = waveformAggregator.LeftMaxVolume;
                }
                if (waveformAggregator.RightMaxVolume > maxRightPointLevel)
                {
                    maxRightPointLevel = waveformAggregator.RightMaxVolume;
                }

                if (readCount > waveMaxPointIndexes[currentPointIndex])
                {
                    waveformCompressedPoints[(currentPointIndex * 2)]     = maxLeftPointLevel;
                    waveformCompressedPoints[(currentPointIndex * 2) + 1] = maxRightPointLevel;
                    maxLeftPointLevel  = float.MinValue;
                    maxRightPointLevel = float.MinValue;
                    currentPointIndex++;
                }
                if (readCount % 3000 == 0)
                {
                    float[] clonedData = (float[])waveformCompressedPoints.Clone();
                    App.Current.Dispatcher.Invoke(new Action(() =>
                    {
                        WaveformData = clonedData;
                    }));
                }

                if (waveformGenerateWorker.CancellationPending)
                {
                    e.Cancel = true;
                    break;
                }
                readCount++;
            }

            float[] finalClonedData = (float[])waveformCompressedPoints.Clone();
            App.Current.Dispatcher.Invoke(new Action(() =>
            {
                fullLevelData = waveformData.ToArray();
                WaveformData  = finalClonedData;
            }));
            waveformInputStream.Close();
            waveformInputStream.Dispose();
            waveformInputStream = null;
            waveformMp3Stream.Close();
            waveformMp3Stream.Dispose();
            waveformMp3Stream = null;
        }