/// <summary>Returns all data needed to copy the stream</summary>
/// <remarks>Do not forget to call Marshal.FreeHGlobal and release the raw data pointer</remarks>
/// <param name="streamInfo">Receives the header information</param>
/// <param name="format">Receives the format</param>
/// <param name="streamLength">Receives the length of the stream</param>
/// <returns>Pointer to the wave data</returns>
public IntPtr GetStreamData(ref Avi.AVISTREAMINFO streamInfo, ref Avi.PCMWAVEFORMAT format, ref int streamLength)
{
streamInfo = this.GetStreamInfo();
format = this.GetFormat();
//length in bytes = length in samples * length of a sample
streamLength = Avi.AVIStreamLength(this.aviStream.ToInt32()) * streamInfo.dwSampleSize;
IntPtr waveData = Marshal.AllocHGlobal(streamLength);
int result = Avi.AVIStreamRead(this.aviStream, 0, streamLength, waveData, streamLength, 0, 0);
if (result != 0)
{
throw new Exception("Exception in AVIStreamRead: " + result.ToString());
}
return(waveData);
}