DirectShow Media Control Crashes on x86

[tbowers]

I'm posting to give more visibility to an issue my colleague posted on the official forums (http://www.aforgenet.com/aforge/forum/viewtopic.php?f=2&t=3552&p=10043#p10043).

Essentially, through a series of tests we've concluded that mediaControl.Run( ); https://github.com/andrewkirillov/AForge.NET/blob/master/Sources/Video.DirectShow/VideoCaptureDevice.cs#L1175

will crash if the videoCapabilities provided to GetPinCapabilitiesAndConfigureSizeAndRate https://github.com/andrewkirillov/AForge.NET/blob/master/Sources/Video.DirectShow/VideoCaptureDevice.cs#L1115 is NOT null.

To reproduce this, all you need to do is modify the Two Camera Test's MainForm.cs to include the following inStartCameras()`

   // Start cameras
        private void StartCameras( )
        {
            // create first video source
            VideoCaptureDevice videoSource1 = new VideoCaptureDevice( videoDevices[camera1Combo.SelectedIndex].MonikerString );
            //videoSource1.DesiredFrameRate = 10;

            // here we set a custom video resolution which will crash on x86
            var vcs = new List<VideoCapabilities>(videoSource1.VideoCapabilities);
            if (vcs.Count > 0) {
                    var vc = vcs[0];
                    //VideoSource in an instance of VideoCaptureDevice. Commenting out
                    //this line prevents the crash on x86 builds.
                    videoSource1.VideoResolution = vc;
            }

Interestingly, this only causes a crash on x86. If it's built for, and run, on x64, everything is fine.

As an aside - is this github repo more maintained than the official page http://www.aforgenet.com? I noticed the last build is 2013 but the forum there is somewhat up to date.

I noticed this repo is being managed by @andrewkirillov who, incidentally, authored the AForge.Video.DirectShow.Internals.IMediaControl file in question.

Thanks, Travis