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microsoft / psi

Platform for Situated Intelligence
https://github.com/microsoft/psi/wiki
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Error when trying to use MediaSource class #110

Closed kahlilfitz closed 3 years ago

kahlilfitz commented 3 years ago

I would like to load a video and use the images as a source for PSI. I am attempting to do this with the MediaSource class thusly:

bool fileExists System.IO.File.Exists(location);
var videoSource = new MediaSource(pipeline, location);

where location is string to the full path of a video file. I get the following exception:

    System.IO.FileNotFoundException
    HResult=0x80070002
    Message=Could not load file or assembly 'SharpDX.MediaFoundation, Version=4.2.0.0, Culture=neutral, 
    PublicKeyToken=b4dcf0f35e5521f1'. The system cannot find the file specified.
    Source=Microsoft.Psi.Media.Windows.x64
    StackTrace:
        at Microsoft.Psi.Media.MediaSource.InitializeMediaPipeline()
        at Microsoft.Psi.Media.MediaSource..ctor(Pipeline pipeline, Stream input, Nullable`1 startTime, Boolean 
        dropOutOfOrderPackets)
        at Microsoft.Psi.Media.MediaSource..ctor(Pipeline pipeline, String filename, Boolean dropOutOfOrderPackets)
        at DeepEngagementFramework.FrameGenerator.SetupSourceFromFileLocation(Pipeline pipeline, String location) in 
    ...

the value of fileExists is true and it is clear from the stack trace that it is trying to use a string that is not a file location. I believe I have used the MediaSource constructor correctly

chitsaw commented 3 years ago

From the exception text, it looks as though there is a problem loading the SharpDX.MediaFoundation library (which MediaSource depends on), or one of its dependencies. Can you check in the first instance that the SharpDX.*.dll files exist in the bin output folder of your project?

kahlilfitz commented 3 years ago

I was missing the SharpDX.MediaFoundation nuget package. Added it and we're good. Thanks!