Code XAML trang MainPage.xaml

Code trang MainPage.xaml.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Windows.Storage;
using Windows.Media.MediaProperties;
using Windows.Media.Transcoding;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace ConvertMedia
{
    /// 

    /// An empty page that can be used on its own or navigated to within a Frame.
    /// 
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }
        private async void btnSelectfile_Click(object sender, RoutedEventArgs e)
        {
            var openPicker = new Windows.Storage.Pickers.FileOpenPicker();
            openPicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.VideosLibrary;
            openPicker.FileTypeFilter.Add(".wmv");
            openPicker.FileTypeFilter.Add(".mp4");
 
            StorageFile source = await openPicker.PickSingleFileAsync(); 
            var savePicker = new Windows.Storage.Pickers.FileSavePicker(); 
            savePicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.VideosLibrary;
 
            savePicker.DefaultFileExtension = ".mp4";
            savePicker.SuggestedFileName = "New Video";
 
            savePicker.FileTypeChoices.Add("MPEG4", new string[] { ".mp4" }); 
            StorageFile destination = await savePicker.PickSaveFileAsync();
 

            MediaTranscoder transcoder = new MediaTranscoder();
            MediaEncodingProfile profile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.HD720p);
            PrepareTranscodeResult prepareOp = await transcoder.PrepareFileTranscodeAsync(source, destination, profile);

            if (prepareOp.CanTranscode)
            {
                var transcodeOp = prepareOp.TranscodeAsync();

                transcodeOp.Progress += new AsyncActionProgressHandler(TranscodeProgress);
                transcodeOp.Completed += new AsyncActionWithProgressCompletedHandler(TranscodeComplete);
            }
            else
            {
                switch (prepareOp.FailureReason)
                {
                    case TranscodeFailureReason.CodecNotFound:
                        System.Diagnostics.Debug.WriteLine("Codec not found.");
                        break;
                    case TranscodeFailureReason.InvalidProfile:
                        System.Diagnostics.Debug.WriteLine("Invalid profile.");
                        break;
                    default:
                        System.Diagnostics.Debug.WriteLine("Unknown failure.");
                        break;
                }
            }
        }
            void TranscodeProgress(IAsyncActionWithProgress asyncInfo, double percent)
            {

            }
        void TranscodeComplete(IAsyncActionWithProgress asyncInfo, AsyncStatus status)
        {
            asyncInfo.GetResults();
            if (asyncInfo.Status == AsyncStatus.Completed)
            {

            }
            else if (asyncInfo.Status == AsyncStatus.Canceled)
            {

            }
            else
            {

            }
        }

    }
}

[Nghean-Aptech]