Downloading Video using HTTPClient

Question

Hi  All,

I am trying to download a video from a URL using a HTTPClient.

 

HttpClient client = new HttpClient();
            HttpResponseMessage response = await client.GetAsync(videoURL);
            byte[] img = response.Content.ReadAsByteArray();
            StorageFile file = await appData.LocalFolder.CreateFileAsync(contentName + ".MP4");
            Windows.Storage.Streams.IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite);
            IOutputStream output = stream.GetOutputStreamAt(0);
            DataWriter writer = new DataWriter(output);
            writer.WriteBytes(img);
            await writer.StoreAsync();
            output.FlushAsync().Start();  

 

When i use this code for a jpg file download it works seamlessly but when i try to access the MP4 file it's not happening.
Anything i have to do in the mobile to get this going?

Thanks in advance.

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Regards Biju S Melayil

Answer 1

What is the problem you are running into?  What is not happening?  Are you getting an error while the code is running?  Is the file not saving out at all?  Is it saving out incorrectly?  Is it saving out but you can't launch it?

--Rob

Answer 2

Hi Rob,

after this line of execution the application is giving me no response.

HttpResponseMessage response = await client.GetAsync(videoURL);

The download hasn't happened. the file we were trying to download is around 670KB.

 

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Regards Biju S Melayil

Answer 3

Hi Biju,

There is a limit to the buffer size (this value is in bytes). http://msdn.microsoft.com/en-us/library/windows/apps/system.net.http.httpclienthandler.maxrequestcontentbuffersize(v=VS.110).aspx

You should be able to simply increase the buffer size to download your video.

-Jeff

 

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Jeff Sanders (MSFT)