/// <summary>
/// Pauses the video
/// </summary>
public void Pause()
{
// End threads
StoppingEvent.Set();
// Stop the FilterGraph (but remembers the current position)
DsError.ThrowExceptionForHR(FG_MediaControl.Stop());
// Update VideoState
currentState = VideoState.Paused;
}
/// <summary>
/// Stops playing the video
/// </summary>
public void Stop()
{
StoppingEvent.Set();
// Stop the FilterGraph
DsError.ThrowExceptionForHR(FG_MediaControl.Stop());
// Reset the current position
DsError.ThrowExceptionForHR(FG_MediaSeeking.SetPositions(0, AMSeekingSeekingFlags.AbsolutePositioning, 0, AMSeekingSeekingFlags.NoPositioning));
// Update VideoState
currentState = VideoState.Stopped;
}
/// <summary>
/// Starts playing the video
/// </summary>
public void Play()
{
if (currentState != VideoState.Playing)
{
StoppingEvent.Reset();
// Create video threads
ThreadPool.QueueUserWorkItem(new WaitCallback(UpdateBuffer));
ThreadPool.QueueUserWorkItem(new WaitCallback(WaitForCompletion));
// Start the FilterGraph
DsError.ThrowExceptionForHR(FG_MediaControl.Run());
// Update VideoState
currentState = VideoState.Playing;
}
}
private void ReleaseInterface()
{
if (FG_MediaEventEx != null)
{
DsError.ThrowExceptionForHR(FG_MediaControl.Stop());
//0x00008001 = WM_GRAPHNOTIFY
DsError.ThrowExceptionForHR(FG_MediaEventEx.SetNotifyWindow(IntPtr.Zero, 0x00008001, IntPtr.Zero));
}
FG_MediaControl = null;
FG_MediaEventEx = null;
FG_GraphBuilder = null;
FG_MediaSeeking = null;
FG_MediaPosition = null;
if (FG != null)
{
Marshal.ReleaseComObject(FG);
}
FG = null;
}
