CallbackOnCollectedDelegate

[Lua12138]

I call the following code through multiple threads:

Task.Run(()=>{
            var options = new MediaOptions();
            options.ShouldLoadStreamsOfType(AVMediaType.AVMEDIA_TYPE_VIDEO);
            options.StreamsToLoad = MediaMode.Video;
            options.DecoderOptions.Add("flags", "low_delay");
            options.DemuxerOptions = new ContainerOptions()
            {
                FlagNoBuffer = true
            };
            var stream = MediaFile.Open(new MyCustomStream(...), options); // real time stream
            while (stream.Video.TryGetNextFrame(out ImageData bitmap)) // <-- this line throws the exception
            {
                doUpdateImage(this.mScreen, bitmap.ToBitmap());
            }
});

In the single-threaded case, this is not a problem. When running from multiple threads at the same time, exceptions like this are thrown

Managed Debugging Assistant 'CallbackOnCollectedDelegate' 
  Message=Managed Debugging Assistant 'CallbackOnCollectedDelegate' : 'A callback was made on a garbage collected delegate of type 'FFmpeg.AutoGen!FFmpeg.AutoGen.avio_alloc_context_read_packet::Invoke'. This may cause application crashes, corruption and data loss. When passing delegates to unmanaged code, they must be kept alive by the managed application until it is guaranteed that they will never be called.'

Is this due to my misuse, or is FFMediaToolkit not capable of being used in a multi-threaded environment?

[ptrace]

I am also experiencing issues in a multithreaded application