Question

I try to use GDCL MPEG 4 Mux with GMFBridge.

My original graph is:

SourceFilter ---> GDCL MPEG 4 Mux Filter ---> FileWriter

I want to give new file name based on my special criteria (such as time , for example every five minute) but not want to create whole graph again. So i try to use GMFBridge.

I does not work. I really can not figure out how to use GMFBridge or it does not work.

Note: Here is what i do with GMFBridge

In order to use , i divide my graph into two pieces:

FirstPart ==>  SourceFilter---> GDCL MPEG 4 Mux Filter--> BridgeSinkFilter

and

SecondPart ==> BridgeSourceFilter ---> FileWriter 

My Program Pseudo Code

IGraphBuilder firstPartGraph = (IGraphBuilder) new FilterGraph();
IGraphBuilder secondPartGraph =  (IGraphBuilder) new FilterGraph();

IBaseFilter   bridgeSinkFilter;
IBaseFilter   bridgeSourceFilter;

IBaseFilter   sourceFilter;
IBaseFilter   muxerFilter;
IBaseFilter   fileWriterFilter;


// Create bridge controller  and init
IGMFBridgeController bridge = (IGMFBridgeController)new GMFBridgeController();

bridge.AddStream(true,eFormatType.MuxInputs, true);

// Then insert Sink filter

bridge.InsertSinkFilter(firstPartGraph, bridgeSinkFilter);

// Configure first part filters


firstPartGraph.AddFilter(sourceFilter);
firstPartGraph.AddFilter(muxerFilter);
firstPartGraph.AddFilter(bridgeSinkFilter); // Have to add this??

ConnectFilters(firstPartGraph,sourceFilter,muxerFilter);
ConnectFilters(firstPartGraph,muxerFilter,bridgeSinkFilter);


// Now add bridge sourceFilter

bridge.InsertSourceFilter(bridgeSinkFilter,secondPartGraph,bridgeSourceFilter);

 // Then configure second part graph


secondPartGraph.AddFilter(bridgeSourceFilter); // Have to add this??
secondPartGraph.AddFilter(fileWriterFilter);

ConnectFilters(secondPartGraph,bridgeSourceFilter,fileWriterFilter);


 // Now bridge two graphs

 bridge.BridgeGraphs(bridgeSinkFilter,fileWriterFilter,bridgeSourceFilter);


// Execute both graphs

 IMediaControl mediaControlForPartOne = (IMediaControl)firstPartGraph;
 mediaControlForPartOne->Run(); 

 IMediaControl mediaControlForPartSecond = (IMediaControl)secondPartGraph;
 mediaControlForPartSecond->Run();

Now how to stop the second graph part and set new file name and then reconnect graphs using bridge?

FIX IT:

Thanks.

I just change my grapg divison and Now work:

  FirstPart ==>  SourceFilter--> BridgeSinkFilter
  SecondPart ==> BridgeSourceFilter ---> GDCL MPEG 4 Mux Filter---> FileWriter 

Answer 1

If you have both graphs working, and getting correct output in the second graph; you can disconnect the graphs:

BridgeGraphs(NULL, NULL);

Now you can stop the second graph, delete it and create a new one. Start the new graph, and connect them again:

BridgeGraphs(bridgeSinkFilter, newBridgeSourceFilter);