/// <summary>
/// Close the input file. Once closed, NextFrame cannot be used
/// </summary>
public void Close()
{
if (wavFile != null)
{
wavFile.Close();
wavFile = null;
//DeleteExistingFile(wavFilePath);
}
if (videoFrameReader != null)
{
videoFrameReader.Dispose();
videoFrameReader = null;
}
}
private void PrepareAudioExtraction(string filePath, int bufferSize, double videoFrameRate)
{
CreateWavFileFromAVFile(filePath);
wavFile = new WavFile(wavFilePath);
frame.AudioSampleRateHz = wavFile.SamplesPerSec;
if (bufferSize == 0) //Combined audio/video extraction
{
frame.AudioBuffer = new Int16[(int)((double)wavFile.SamplesPerSec / videoFrameRate)];
}
else //Audio extraction only
{
frame.AudioBuffer = new Int16[bufferSize];
frameDurationSec = (double)bufferSize / (double)frame.AudioSampleRateHz;
}
}