/// <summary>
/// Releases the capture device
/// </summary>
private void Release()
{
// Stop the thread
_worker = null;
// Clear the event
if (_stopSignal != null)
{
_stopSignal.Close();
_stopSignal = null;
}
if (_graph != null)
{
_graph.Abort();
_graph.Disconnect(_sourceObject.GetPin(PinDirection.Output, 0));
_graph.Disconnect(_grabberObject.GetPin(PinDirection.Input, 0));
_graph.RemoveFilter(_sourceObject);
_graph.RemoveFilter(_grabberObject);
}
// Clean up
_graph = null;
_sourceObject = null;
_grabberObject = null;
_grabber = null;
_capGrabber = null;
_control = null;
}
private void TryRenderSubpicture(IGraphBuilder pGraphBuilder, IPin subpictureOutPin, IPin videoOutPin, IPin videoRendererInputPin)
{
var subpictureFilter = GetSubpictureFilter(pGraphBuilder);
if (subpictureFilter == null)
{
throw new Exception();
}
try
{
ConnectVideoToSubpictureFilter(pGraphBuilder, videoOutPin, subpictureFilter);
ConnectSubpictureToSubpictureFilter(pGraphBuilder, subpictureOutPin, subpictureFilter);
ConnectSubpictureFilterToRenderer(pGraphBuilder, subpictureFilter, videoRendererInputPin);
CollectSubpictureStreamsInfo();
}
catch
{
pGraphBuilder.Disconnect(videoRendererInputPin);
pGraphBuilder.Disconnect(subpictureOutPin);
pGraphBuilder.Disconnect(videoOutPin);
throw;
}
finally
{
Marshal.FinalReleaseComObject(subpictureFilter);
}
}
/// <summary>
/// Removes all filters downstream from a filter from the graph.
/// This is called only by DerenderGraph() to remove everything
/// from the graph except the devices and compressors. The parameter
/// "removeFirstFilter" is used to keep a compressor (that should
/// be immediately downstream of the device) if one is begin used.
/// </summary>
void RemoveDownstream(IBaseFilter filter)
{
// Get a pin enumerator off the filter
var hr = filter.EnumPins(out IEnumPins pinEnum);
if (pinEnum == null)
{
return;
}
pinEnum.Reset();
if (hr == 0)
{
// Loop through each pin
var pins = new IPin[1];
do
{
// Get the next pin
hr = pinEnum.Next(1, pins, out int _);
if (hr == 0 && pins[0] != null)
{
// Get the pin it is connected to
pins[0].ConnectedTo(out IPin pinTo);
if (pinTo != null)
{
// Is this an input pin?
hr = pinTo.QueryPinInfo(out PinInfo info);
if (hr == 0 && info.dir == PinDirection.Input)
{
// Recurse down this branch
RemoveDownstream(info.filter);
// Disconnect
_graphBuilder.Disconnect(pinTo);
_graphBuilder.Disconnect(pins[0]);
// Remove this filter
// but don't remove the video or audio compressors
if (info.filter != _videoCompressorFilter)
{
_graphBuilder.RemoveFilter(info.filter);
}
}
Marshal.ReleaseComObject(info.filter);
Marshal.ReleaseComObject(pinTo);
}
Marshal.ReleaseComObject(pins[0]);
}
} while (hr == 0);
Marshal.ReleaseComObject(pinEnum);
}
}
protected void removeDownstream(IBaseFilter filter, bool removeFirstFilter)
{
// Get a pin enumerator off the filter
IEnumPins pinEnum;
int hr = filter.EnumPins(out pinEnum);
pinEnum.Reset();
if ((hr == 0) && (pinEnum != null))
{
// Loop through each pin
IPin[] pins = new IPin[1];
int f;
do
{
// Get the next pin
hr = pinEnum.Next(1, pins, out f);
if ((hr == 0) && (pins[0] != null))
{
// Get the pin it is connected to
IPin pinTo = null;
pins[0].ConnectedTo(out pinTo);
if (pinTo != null)
{
// Is this an input pin?
PinInfo info = new PinInfo();
hr = pinTo.QueryPinInfo(out info);
if ((hr == 0) && (info.dir == (PinDirection.Input)))
{
// Recurse down this branch
removeDownstream(info.filter, true);
// Disconnect
graphBuilder.Disconnect(pinTo);
graphBuilder.Disconnect(pins[0]);
// Remove this filter
// but don't remove the video or audio compressors
if ((info.filter != videoCompressorFilter) &&
(info.filter != audioCompressorFilter))
{
graphBuilder.RemoveFilter(info.filter);
}
}
Marshal.ReleaseComObject(info.filter);
Marshal.ReleaseComObject(pinTo);
}
Marshal.ReleaseComObject(pins[0]);
}
}while (hr == 0);
Marshal.ReleaseComObject(pinEnum);
pinEnum = null;
}
}
public static void Disconnect(IGraphBuilder pGraphBuilder, IPin pPin)
{
IPin pInputPin = null;
if (pPin.ConnectedTo(out pInputPin) == DsHlp.S_OK)
{
pGraphBuilder.Disconnect(pInputPin);
Marshal.ReleaseComObject(pInputPin);
}
pGraphBuilder.Disconnect(pPin);
}
public void Disconnect(IPin ipin)
{
try
{
int hr = graphBuilder.Disconnect(ipin);
DsError.ThrowExceptionForHR(hr);
}
catch (COMException e)
{
ShowCOMException(e, "Error disconnecting pin");
}
catch
{
//MessageBox.Show(e.Message, "Error disconnecting pin");
}
}
public static IBaseFilter AddToGraph(IGraphBuilder graphBuilder)
{
IBaseFilter vob = null;
using (Settings xmlreader = new MPSettings())
{
string engineType = xmlreader.GetValueAsString("subtitles", "engine", "DirectVobSub");
XySubFilter = engineType.Equals("XySubFilter");
}
if (!XySubFilter)
{
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.DirectVobSubAutoload, out vob);
if (vob == null)
{
//Try the "normal" filter then.
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.DirectVobSubNormal, out vob);
}
}
else
{
//Try the XySubFilter "autoload" filter.
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.XySubFilterAutoload, out vob);
if (vob != null)
{
return(vob);
}
//Try the XySubFilter "normal" filter then.
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.XySubFilterNormal, out vob);
if (vob != null)
{
return(vob);
}
vob = DirectShowUtil.AddFilterToGraph(graphBuilder, "XySubFilter");
if (vob == null)
{
Log.Warn("VideoPlayerVMR9: DirectVobSub or XySubFilter filter not found! You need to install XySubFilter");
return(null);
}
Log.Debug("VideoPlayerVMR9: VobSub filter added to graph");
return(vob);
}
//if the directvobsub filter has not been added to the graph. (i.e. with evr)
//we add a bit more intelligence to determine if subtitles are enabled.
//and if subtitles are present for the video / movie then we add it if necessary to the graph.
if (vob == null)
{
Log.Info("VideoPlayerVMR9: No VobSub filter in the current graph");
//the filter has not been added lets check if it should be added or not.
//add the filter to the graph
vob = DirectShowUtil.AddFilterToGraph(graphBuilder, "DirectVobSub");
if (vob == null)
{
Log.Warn("VideoPlayerVMR9: DirectVobSub or XySubFilter filter not found! You need to install VSFilter");
return(null);
}
Log.Debug("VideoPlayerVMR9: VobSub filter added to graph");
}
else // VobSub already loaded
{
return(vob);
}
// Check if Haali Media Splitter is in the graph.
IBaseFilter hms = null;
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.HaaliGuid, out hms);
if (hms == null)
{
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.MPCMatroska, out hms);
}
if (hms == null)
{
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.MPCMatroskaSource, out hms);
}
if (hms == null)
{
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.LAVFilter, out hms);
}
if (hms == null)
{
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.LAVFilterSource, out hms);
}
if (hms != null)
{
IPin pinSubTo = null;
// It is. Connect it' subtitle output pin (if any) to Vobsub's subtitle input.
pinSubTo = DirectShowUtil.FindPin(hms, PinDirection.Output, "Subtitle");
if (pinSubTo == null)
{
while (true)
{
IPin freeSubtitle = DirectShowUtil.FindFirstFreePinSub(hms, PinDirection.Output, "");
IPin freeVobSub = DirectShowUtil.FindFirstFreePin(vob, PinDirection.Input, "Input");
if (freeSubtitle != null && freeVobSub != null)
{
Log.Debug("VideoPlayerVMR9: Connecting Matroska's subtitle output to VobSub's input.");
graphBuilder.Connect(freeSubtitle, freeVobSub);
DirectShowUtil.ReleaseComObject(freeSubtitle);
freeSubtitle = null;
DirectShowUtil.ReleaseComObject(freeVobSub);
freeVobSub = null;
}
else
{
break;
}
}
}
DirectShowUtil.ReleaseComObject(hms);
hms = null;
if (pinSubTo != null)
{
Log.Debug("VideoPlayerVMR9: Connecting Haali's subtitle output to VobSub's input.");
// Try to render pins
IPin pinVobSubSub = DirectShowUtil.FindPin(vob, PinDirection.Input, "Input");
// If pinSubTo is already connected (disconnect it)
graphBuilder.Disconnect(pinSubTo);
graphBuilder.Connect(pinSubTo, pinVobSubSub);
DirectShowUtil.ReleaseComObject(pinSubTo);
pinSubTo = null;
DirectShowUtil.ReleaseComObject(pinVobSubSub);
pinVobSubSub = null;
}
}
// Now check if vobsub's video input is not connected.
// Check only if vmr9 is connected (render was successful).
VMR9Util Vmr9 = VMR9Util.g_vmr9;
if (Vmr9.IsVMR9Connected)
{
Log.Debug("VideoPlayerVMR9: Connect VobSub's video pins");
IPin pinVobSubVideoIn = DsFindPin.ByDirection(vob, PinDirection.Input, 0);
IPin pinVobSubVideoOut = DsFindPin.ByDirection(vob, PinDirection.Output, 0);
// This is the pin that we will connect to vobsub's input.
IPin pinVideoTo = Vmr9.PinConnectedTo;
IPin pinVideoFrom = null;
pinVideoTo.ConnectedTo(out pinVideoFrom);
pinVideoTo.Disconnect();
pinVideoFrom.Disconnect();
//Now make connection to VobSub
int hr = graphBuilder.Connect(pinVideoTo, pinVobSubVideoIn);
//hr = graphBuilder.Render(pinVideoFrom);
if (hr != 0)
{
Log.Error("VideoPlayerVMR9: could not connect Vobsub's input video pin");
return(null);
}
hr = graphBuilder.Connect(pinVobSubVideoOut, pinVideoFrom);
//hr = graphBuilder.Render(pinVobSubVideoOut);
if (hr != 0)
{
Log.Error("VideoPlayerVMR9: could not connect Vobsub's output video pin");
return(null);
}
Log.Debug("VideoPlayerVMR9: Vobsub's video pins connected");
DirectShowUtil.ReleaseComObject(pinVideoTo);
pinVideoTo = null;
DirectShowUtil.ReleaseComObject(pinVobSubVideoIn);
pinVobSubVideoIn = null;
DirectShowUtil.ReleaseComObject(pinVobSubVideoOut);
pinVobSubVideoOut = null;
DirectShowUtil.ReleaseComObject(pinVideoFrom);
pinVideoFrom = null;
}
Vmr9 = null;
return(vob);
}
public static IBaseFilter AddToGraph(IGraphBuilder graphBuilder)
{
IBaseFilter vob = null;
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.DirectVobSubAutoload, out vob);
if (vob == null)
{
//Try the "normal" filter then.
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.DirectVobSubNormal, out vob);
}
//if the directvobsub filter has not been added to the graph. (i.e. with evr)
//we add a bit more intelligence to determine if subtitles are enabled.
//and if subtitles are present for the video / movie then we add it if necessary to the graph.
if (vob == null)
{
Log.Info("VideoPlayerVMR9: No VobSub filter in the current graph");
//the filter has not been added lets check if it should be added or not.
//add the filter to the graph
vob = DirectShowUtil.AddFilterToGraph(graphBuilder, "DirectVobSub");
if (vob == null)
{
Log.Warn("VideoPlayerVMR9: DirectVobSub filter not found! You need to install VSFilter");
return null;
}
else
{
Log.Debug("VideoPlayerVMR9: VobSub filter added to graph");
}
}
else // VobSub already loaded
{
return vob;
}
// Check if Haali Media Splitter is in the graph.
IBaseFilter hms = null;
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.HaaliGuid, out hms);
if (hms == null)
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.MPCMatroska, out hms);
if (hms == null)
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.MPCMatroskaSource, out hms);
if (hms == null)
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.LAVFilter, out hms);
if (hms == null)
DirectShowUtil.FindFilterByClassID(graphBuilder, ClassId.LAVFilterSource, out hms);
if (hms != null)
{
IPin pinSubTo = null;
// It is. Connect it' subtitle output pin (if any) to Vobsub's subtitle input.
pinSubTo = DirectShowUtil.FindPin(hms, PinDirection.Output, "Subtitle");
if (pinSubTo == null)
{
while (true)
{
IPin freeSubtitle = DirectShowUtil.FindFirstFreePinSub(hms, PinDirection.Output, "");
IPin freeVobSub = DirectShowUtil.FindFirstFreePin(vob, PinDirection.Input, "Input");
if (freeSubtitle != null && freeVobSub != null)
{
Log.Debug("VideoPlayerVMR9: Connecting Matroska's subtitle output to VobSub's input.");
graphBuilder.Connect(freeSubtitle, freeVobSub);
DirectShowUtil.ReleaseComObject(freeSubtitle);
freeSubtitle = null;
DirectShowUtil.ReleaseComObject(freeVobSub);
freeVobSub = null;
}
else
break;
}
}
DirectShowUtil.ReleaseComObject(hms);
hms = null;
if (pinSubTo != null)
{
Log.Debug("VideoPlayerVMR9: Connecting Haali's subtitle output to VobSub's input.");
// Try to render pins
IPin pinVobSubSub = DirectShowUtil.FindPin(vob, PinDirection.Input, "Input");
// If pinSubTo is already connected (disconnect it)
graphBuilder.Disconnect(pinSubTo);
graphBuilder.Connect(pinSubTo, pinVobSubSub);
DirectShowUtil.ReleaseComObject(pinSubTo);
pinSubTo = null;
DirectShowUtil.ReleaseComObject(pinVobSubSub);
pinVobSubSub = null;
}
}
// Now check if vobsub's video input is not connected.
// Check only if vmr9 is connected (render was successful).
VMR9Util Vmr9 = VMR9Util.g_vmr9;
if (Vmr9.IsVMR9Connected)
{
Log.Debug("VideoPlayerVMR9: Connect VobSub's video pins");
IPin pinVobSubVideoIn = DsFindPin.ByDirection(vob, PinDirection.Input, 0);
IPin pinVobSubVideoOut = DsFindPin.ByDirection(vob, PinDirection.Output, 0);
// This is the pin that we will connect to vobsub's input.
IPin pinVideoTo = Vmr9.PinConnectedTo;
IPin pinVideoFrom = null;
pinVideoTo.ConnectedTo(out pinVideoFrom);
pinVideoTo.Disconnect();
pinVideoFrom.Disconnect();
//Now make connection to VobSub
int hr = graphBuilder.Connect(pinVideoTo, pinVobSubVideoIn);
//hr = graphBuilder.Render(pinVideoFrom);
if (hr != 0)
{
Log.Error("VideoPlayerVMR9: could not connect Vobsub's input video pin");
return null;
}
hr = graphBuilder.Connect(pinVobSubVideoOut, pinVideoFrom);
//hr = graphBuilder.Render(pinVobSubVideoOut);
if (hr != 0)
{
Log.Error("VideoPlayerVMR9: could not connect Vobsub's output video pin");
return null;
}
Log.Debug("VideoPlayerVMR9: Vobsub's video pins connected");
DirectShowUtil.ReleaseComObject(pinVideoTo);
pinVideoTo = null;
DirectShowUtil.ReleaseComObject(pinVobSubVideoIn);
pinVobSubVideoIn = null;
DirectShowUtil.ReleaseComObject(pinVobSubVideoOut);
pinVobSubVideoOut = null;
DirectShowUtil.ReleaseComObject(pinVideoFrom);
pinVideoFrom = null;
}
Vmr9 = null;
return vob;
}
