MediaEncodingProfile.createFromFileAsync would freeze the app

Question

Hi,

I want to trim the video, but keep its original format.

The API MediaEncodingProfile.createFromFileAsync(storageFile) can do that.

But it would have no respond occasionally. Just app hang, and need to stop it manually.

Is anything that I miss, or how to avoid this issue?

OS: Windows 8 Consumer Preview b8250

Best Regards.

R.C.Y

Answer 1

Hi R.C.Y,

What is your code actually, how do you call this method? Could you please try to provide some code that we can reproduce it in our side.

Sincerely,

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Bob Bao [MSFT]
MSDN Community Support | Feedback to us

Answer 2

Windows Metro app with Javascript + HTML + CSS.

And partial code is below:

var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.videosLibrary;
picker.fileTypeFilter.replaceAll([".mp4", ".wmv", ".mpg"]);
picker.pickSingleFileAsync().then(function (videoItem) {
    if (videoItem) {
        Windows.Media.MediaProperties.MediaEncodingProfile.createFromFileAsync(videoItem).done(function (profile) {
            console.log("got video profile"); // Cannot reach here occasionally.
        });
    }
});

Best Regards.

R.C.Y

Answer 3

When it happen, ALT+F4 cannot exit the app. And the app will close automatically in seconds after pressing Win key back to desktop.

Answer 4

The complete project code is on dropbox

All I did was simple:

1. Choose file

2. MediaEncodingProfile.createFromFileAsync

BR.
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R.C.Y