AForge.Video.DirectShow.VideoCaptureDevice.ColletCrossbarVideoInputs C# (CSharp) Method

        private VideoInput[] ColletCrossbarVideoInputs( IAMCrossbar crossbar )
        {
            lock ( cacheCrossbarVideoInputs )
            {
                if ( cacheCrossbarVideoInputs.ContainsKey( deviceMoniker ) )
                {
                    return cacheCrossbarVideoInputs[deviceMoniker];
                }

                List<VideoInput> videoInputsList = new List<VideoInput>( );

                if ( crossbar != null )
                {
                    int inPinsCount, outPinsCount;

                    // gen number of pins in the crossbar
                    if ( crossbar.get_PinCounts( out outPinsCount, out inPinsCount ) == 0 )
                    {
                        // collect all video inputs
                        for ( int i = 0; i < inPinsCount; i++ )
                        {
                            int pinIndexRelated;
                            PhysicalConnectorType type;

                            if ( crossbar.get_CrossbarPinInfo( true, i, out pinIndexRelated, out type ) != 0 )
                                continue;

                            if ( type < PhysicalConnectorType.AudioTuner )
                            {
                                videoInputsList.Add( new VideoInput( i, type ) );
                            }
                        }
                    }
                }

                VideoInput[] videoInputs = new VideoInput[videoInputsList.Count];
                videoInputsList.CopyTo( videoInputs );

                cacheCrossbarVideoInputs.Add( deviceMoniker, videoInputs );

                return videoInputs;
            }
        }