CODEWITHSUNDEEP
windowswindows-runtimewindows-phone-8.1winrt-xaml
abhishekiiit
abhishekiiit

Reputation: 160

Thumbnail of Video recorded using mediacapture throwing exception in winrt phone 8.1

Issue which i am facing is OS takes time to generate thumbnail, if i try to access the thumbnail it is throwing error. Any workaround for this? Can't specify Task.Delay as timings could be different for different phones. I want to show the thumbnail instantaneously.

Upvotes: 1

Views: 92

Answers (2)

Null Pointer
Null Pointer

Reputation: 9289

Home it will help someone. The below code will generate thumb image for video file

           var recordedFile =//get StorageFile

            var clip = await MediaClip.CreateFromFileAsync(recordedFile);
            var comp = new MediaComposition();
            comp.Clips.Add(clip);
            var thumbstream = await comp.GetThumbnailAsync(TimeSpan.Zero, 320, 240, VideoFramePrecision.NearestKeyFrame);

See this link to get more info about MediaComposition class.

Upvotes: 0

Mike
Mike

Reputation: 2260

You can't really speed up processes that take a while to complete. You're at the mercy of the OS to provide you with the thumbnail when it can, but do make sure that you kick off the request as soon as you can.

Make sure all your processes are asynchronous, and the UI will remain responsive during this call. While it processes, you should be showing some sort of an activity indicator to the user, possibly in the form of a TextBlock with the word "Loading..." near a ProgressRing that has its IsActive property set to true.

Upvotes: 1

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