Fail to load customize video from video tag?

Question

Hi,

I met a strange problem when I load non-default supported format media in video tag.

I create a decoder for decoding mpeg2 file by my self and successful load a mpeg2 file in the Media Plug sample.

But when I try to load the video selected by the file picker. It failed to load. I have already using URL.createObjectURL to create the file URL.

Does anyone have idea about what happened in my case? (It works when I add the same file into my project and using something like /videos/video.m2v as the video's src.)

Thank you~~

Eric

Answer 1

Can you successfully load a supported format successfully?  Is the problem in your app only the non supported video?

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Jeff Sanders (MSFT)

Answer 2

Yes, supported video can play well when I selected it from file picker. Just non-support format has crash issue.

But non-support format can load successful when I add it into project as the asset.

Is there something can help me to identify what happened?

 

Eric

Answer 3

Eric,

I could get the Media sample to work with the file picker successfully.

Modify your code to use the file picker similar to this:

function localDecoderOpen() {
        // Set video element's source
        var pick = Windows.Storage.Pickers.FileOpenPicker();
        pick.fileTypeFilter.replaceAll(["*"]);
        pick.pickSingleFileAsync().then(function (file) {
            WinJS.Utilities.query("#localDecoderVideo")[0].src = URL.createObjectURL(file, false);
        });
    }

Let me know if that makes a difference. 

-Jeff

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Jeff Sanders (MSFT)

Answer 4

Thanks,

Finally I found a strange issue from my case, actually I done like yours.

But I found that if the video tag without "autoplay" property, my app crash when I resize the video tag's size. (I set to 100% 100%)

Every thing work fine after I add autoplay to my video tag.

I am checking why this happened.

Thanks again.

 

Eric

Answer 5

Hello Eric,

Thank you for the update in your problem.  I am very glad you were able to resolve it!  Could you tell me what steps I could take in the Media Plugin sample to recreate the crash?  I will debug that issue from my end.

Thanks!

-Jeff

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Jeff Sanders (MSFT)

Answer 6

Hi, Jeff,

I thought this issue may caused by our self, my colleague is checking what happened now. I will update this issue once we got the root cause.

But for my personal case, my media-plug in sample doesn't work on first case. (Install a local decoder.) Others work well on my machine.

the error is

MEDIA_ERR_DECODE, and error code is -1072873851.

I am using Acer Aspire one 752 for the preview build. I think this may cause by the hardware itself.

By the way, I really appreciate your help~~~

 

Eric

Answer 7

Hi Eric,

My pleasure to help however I can.  If this is an HTML/jscript app you can try disabling hardware acceleration in IE and see if that solves the issue (don't forget to re-enable it later):

http://support.microsoft.com/kb/2528233

-Jeff

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Jeff Sanders (MSFT)

Answer 8

Hi Jeff,

Thanks, this help me to resolve this issue~~~~

 

 

Eric