public byte[] GetStreamData()
{
int streamLength;
int samples;
uint result = AviInterop.AVIStreamRead(StreamPointer, sampleOffset,
AviInterop.AvistreamreadConvenient, IntPtr.Zero, 0, out streamLength, out samples);
if (result != 0)
{
throw new Exception("Exception in AVIStreamRead: " + AviErrors.GetError(result));
}
IntPtr waveData = Marshal.AllocHGlobal(streamLength);
result = AviInterop.AVIStreamRead(StreamPointer, sampleOffset, samples,
waveData, streamLength, out streamLength, out samples);
if (result != 0)
{
throw new Exception("Exception in AVIStreamRead: " + AviErrors.GetError(result));
}
sampleOffset += samples;
var resultData = new byte[streamLength];
Marshal.Copy(waveData, resultData, 0, streamLength);
Marshal.FreeHGlobal(waveData);
return(resultData);
}
public AviFile(String filepath)
{
AviInterop.AVIFileInit();
uint result = AviInterop.AVIFileOpen(ref aviFile, filepath, AviInterop.OfRead, 0);
if (result > 0)
{
throw new Exception("Exception in AVIFileOpen: " + AviErrors.GetError(result));
}
}
protected AviInterop.StreamInfo GetStreamInfo()
{
var streamInfo = new AviInterop.StreamInfo();
uint result = AviInterop.AVIStreamInfo(StreamPointer, ref streamInfo,
Marshal.SizeOf(streamInfo));
if (result != 0)
{
throw new Exception("Exception in VideoStreamInfo: " + AviErrors.GetError(result));
}
return(streamInfo);
}
public AudioStream GetAudioStream()
{
IntPtr aviStream;
uint result = AviInterop.AVIFileGetStream(aviFile, out aviStream, AviInterop.StreamtypeAudio,
0);
if (result > 0)
{
throw new Exception("Exception in AVIFileGetStream: " + AviErrors.GetError(result));
}
var stream = new AudioStream(aviFile, aviStream);
streams.Add(stream);
return(stream);
}