通用Windows平台中视频文件的帧频

Question

How can I access frame rate of video file in Windows 10 application?

I tried external libraries like MediaInfoNet , or taglib for reading metadata, but these are not compactible with UWP (at least nuget is telling me this). Also MediaElement seems pretty evolved, but has no FPS property.

Is there any option?

Answer 1

After all it is easy.

 List<string> encodingPropertiesToRetrieve = new List<string>();
 encodingPropertiesToRetrieve.Add("System.Video.FrameRate");
 IDictionary<string, object> encodingProperties = await file.Properties.RetrievePropertiesAsync(encodingPropertiesToRetrieve);
 uint frameRateX1000 = (uint)encodingProperties["System.Video.FrameRate"];

Where file is Windows.Storage.StorageFile

FrameRate is multiply by 1000.

More info about Metadata Properties for Media Files .