Changing capture device multiple times makes media element freeze

[mountrivers]

Changing caputer device multiple times makes media element freeze.

I made combobox to select webcam, audio device list

and my code is this

            if (Media.IsOpen)
                await Media.Stop();
            string resultUri = "";
            if (String.IsNullOrEmpty(videoDevice) && string.IsNullOrEmpty(audioDevice))
                return;
            else if ( string.IsNullOrEmpty(audioDevice))
                resultUri = $"device://dshow/?video={videoDevice}";
            else if ( string.IsNullOrEmpty(videoDevice))
                resultUri = $"device://dshow/?audio={audioDevice}";
            else
                resultUri = $"device://dshow/?audio={audioDevice}:video={videoDevice}";

            System.Uri uri = new System.Uri(resultUri);
            var a = await Media.Open(uri);
            var b = await Media.Play();
            Trace.WriteLine($"{a} / {b} ");

If i change video or audio device about 3~7 times

media element freeze

This is also Happen in Sample File.

Issue Categories

• [v ] Bug
• [ ] Feature Request
• [ ] Question
• [ ] Not sure

Version Information

• [v ] NuGet Package 4.4.350
• [ ] Build From Master branch, Commit Enter commit id. Example: 704c482
• [ ] Build from Branch Name, Commit Enter commit id. Example: 704c482

Steps to Reproduce

[ in sample program ]

1. Step 1 - device://dshow/?audio=AudioDeviceA:video=VideoDeviceA
2. Step 2 - device://dshow/?audio=AudioDeviceB:video=VideoDeviceA
3. Step 3 - device://dshow/?audio=AudioDeviceA:video=VideoDeviceA

Expected Results

• Result 1 Media element freeze
• Result 2 - error log

  [12:35.464 | ERR | FFmpeg.Log          ] [dshow @ 00000220acb5acc0] real-time buffer [AVerMedia Live Gamer HD 2] [video input] too full or near too full (100% of size: 3041280 [rtbufsize parameter])! frame dropped!

[stale[bot]]

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