public ClipPlayer(IntPtr hwnd, int msgSegment, int msgEvent)
{
m_bLoop = false;
m_tDuration = 0;
m_tStartPosition = 0;
m_bActive = false;
m_hwndApp = hwnd;
m_msgEvent = msgEvent;
m_msgSegment = msgSegment;
m_pPlayNext = -1;
m_Clips = new ArrayList(5);
m_pController = new GMFBridgeController() as IGMFBridgeController;
m_pController.SetNotify(hwnd, msgSegment);
// we use a video and an audio stream,
// options:
//don't allow compressed in source graphs,
//don't discard when not connected
m_pController.AddStream(true, eFormatType.Uncompressed, false);
m_pController.AddStream(false, eFormatType.Uncompressed, false);
// increase buffering at the join, so that audio does not run out
m_pController.SetBufferMinimum(200);
m_itCurrent = m_Clips.Count;
}
public ClipPlayer(IntPtr hwnd, int msgSegment, int msgEvent)
{
m_bLoop = false;
m_tDuration = 0;
m_tStartPosition = 0;
m_bActive = false;
m_hwndApp = hwnd;
m_msgEvent = msgEvent;
m_msgSegment = msgSegment;
m_pPlayNext = -1;
m_Clips = new ArrayList(5);
m_pController = new GMFBridgeController() as IGMFBridgeController;
m_pController.SetNotify(hwnd, msgSegment);
// we use a video and an audio stream,
// options:
//don't allow compressed in source graphs,
//don't discard when not connected
m_pController.AddStream(true, eFormatType.Uncompressed, false);
m_pController.AddStream(false, eFormatType.Uncompressed, false);
// increase buffering at the join, so that audio does not run out
m_pController.SetBufferMinimum(200);
m_itCurrent = m_Clips.Count;
}
public int AddClip(string path, out ClipEntry pClip)
{
int it = m_Clips.Count;
pClip = new ClipEntry();
m_Clips.Add(pClip);
int hr = pClip.Create(m_pController, path);
// if we expect both audio and video, then all clips
// must have both audio and video.
// If the first clip is video only, then switch
// to video-only automatically
if ((hr == VFW_E_UNSUPPORTED_AUDIO) && (m_Clips.Count == 1))
{
// new controller, different options (only one video stream)
if (m_pController != null)
{
Marshal.ReleaseComObject(m_pController);
m_pController = null;
}
m_pController = new GMFBridgeController() as IGMFBridgeController;
m_pController.SetNotify(m_hwndApp, m_msgSegment);
m_pController.AddStream(true, eFormatType.Uncompressed, false);
m_pController.SetBufferMinimum(200);
// try again
hr = pClip.Create(m_pController, path);
}
if (hr >= 0)
{
pClip.SetStartPosition(m_tDuration);
m_tDuration += pClip.Duration();
// if this is the first clip, create the render graph
if (m_Clips.Count == 1)
{
m_pRenderGraph = new FilterGraph() as IGraphBuilder;
hr = m_pController.CreateRenderGraph(pClip.SinkFilter(), m_pRenderGraph, out m_pRenderGraphSourceFilter);
if (hr >= 0 && m_hwndApp != IntPtr.Zero)
{
IMediaEventEx pME = m_pRenderGraph as IMediaEventEx;
if (pME != null)
{
pME.SetNotifyWindow(m_hwndApp, m_msgEvent, IntPtr.Zero);
}
}
}
}
else
{
pClip.Dispose();
m_Clips.RemoveAt(it);
}
return(hr);
}
public int AddClip(string path, out ClipEntry pClip)
{
int it = m_Clips.Count;
pClip = new ClipEntry();
m_Clips.Add(pClip);
int hr = pClip.Create(m_pController, path);
// if we expect both audio and video, then all clips
// must have both audio and video.
// If the first clip is video only, then switch
// to video-only automatically
if ((hr == VFW_E_UNSUPPORTED_AUDIO) && (m_Clips.Count == 1))
{
// new controller, different options (only one video stream)
if (m_pController != null)
{
Marshal.ReleaseComObject(m_pController);
m_pController = null;
}
m_pController = new GMFBridgeController() as IGMFBridgeController;
m_pController.SetNotify(m_hwndApp, m_msgSegment);
m_pController.AddStream(true, eFormatType.Uncompressed, false);
m_pController.SetBufferMinimum(200);
// try again
hr = pClip.Create(m_pController, path);
}
if (hr >= 0)
{
pClip.SetStartPosition(m_tDuration);
m_tDuration += pClip.Duration();
// if this is the first clip, create the render graph
if (m_Clips.Count == 1)
{
m_pRenderGraph = new FilterGraph() as IGraphBuilder;
hr = m_pController.CreateRenderGraph(pClip.SinkFilter(), m_pRenderGraph, out m_pRenderGraphSourceFilter);
if (hr >= 0 && m_hwndApp != IntPtr.Zero)
{
IMediaEventEx pME = m_pRenderGraph as IMediaEventEx;
if (pME != null)
{
pME.SetNotifyWindow(m_hwndApp, m_msgEvent, IntPtr.Zero);
}
}
}
}
else
{
pClip.Dispose();
m_Clips.RemoveAt(it);
}
return hr;
}