/// <summary>
/// 将指定的视频文件裁剪后保存值新文件中
/// </summary>
/// <param name="DestinationFile">新文件</param>
/// <param name="Composition">片段</param>
/// <param name="EncodingProfile">编码</param>
/// <param name="TrimmingPreference">裁剪精度</param>
/// <returns></returns>
public static Task GenerateCroppedVideoFromOriginAsync(StorageFile DestinationFile, MediaComposition Composition, MediaEncodingProfile EncodingProfile, MediaTrimmingPreference TrimmingPreference)
{
return Task.Factory.StartNew((obj) =>
{
IsAnyTransformTaskRunning = true;
AVTranscodeCancellation = new CancellationTokenSource();
var Para = (ValueTuple<StorageFile, MediaComposition, MediaEncodingProfile, MediaTrimmingPreference>)obj;
SendUpdatableToastWithProgressForCropVideo(Para.Item1);
Progress<double> CropVideoProgress = new Progress<double>((CurrentValue) =>
{
string Tag = "CropVideoNotification";
var data = new NotificationData
{
SequenceNumber = 0
};
data.Values["ProgressValue"] = Math.Round(CurrentValue / 100, 2, MidpointRounding.AwayFromZero).ToString();
data.Values["ProgressValueString"] = Convert.ToInt32(CurrentValue) + "%";
ToastNotificationManager.CreateToastNotifier().Update(data, Tag);
});
try
{
Para.Item2.RenderToFileAsync(Para.Item1, Para.Item4, Para.Item3).AsTask(AVTranscodeCancellation.Token, CropVideoProgress).Wait();
ApplicationData.Current.LocalSettings.Values["MediaCropStatus"] = "Success";
}
catch (AggregateException)
{
ApplicationData.Current.LocalSettings.Values["MediaCropStatus"] = "Cancel";
Para.Item1.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
catch (Exception e)
{
ApplicationData.Current.LocalSettings.Values["MediaCropStatus"] = e.Message;
Para.Item1.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
}, (DestinationFile, Composition, EncodingProfile, TrimmingPreference), CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Current).ContinueWith((task) =>
{
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
switch (ApplicationData.Current.LocalSettings.Values["MediaCropStatus"].ToString())
{
case "Success":
{
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Crop_Success"), 5000);
ShowCropCompleteNotification();
break;
}
case "Cancel":
{
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Crop_Cancel"), 5000);
ShowCropCancelNotification();
break;
}
default:
{
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Crop_Error"), 5000);
break;
}
}
}).AsTask().Wait();
IsAnyTransformTaskRunning = false;
}, TaskScheduler.Current);
}
/// <summary>
/// 将指定的视频文件裁剪后保存值新文件中
/// </summary>
/// <param name="DestinationFile">新文件</param>
/// <param name="Composition">片段</param>
/// <param name="EncodingProfile">编码</param>
/// <param name="TrimmingPreference">裁剪精度</param>
/// <returns></returns>
public static Task GenerateCroppedVideoFromOriginAsync(StorageFile DestinationFile, MediaComposition Composition, MediaEncodingProfile EncodingProfile, MediaTrimmingPreference TrimmingPreference)
{
return(Task.Factory.StartNew((obj) =>
{
if (obj is ValueTuple <StorageFile, MediaComposition, MediaEncodingProfile, MediaTrimmingPreference> Para)
{
using (ExtendedExecutionController ExtExecution = ExtendedExecutionController.TryCreateExtendedExecution().Result)
{
IsAnyTransformTaskRunning = true;
AVTranscodeCancellation = new CancellationTokenSource();
SendUpdatableToastWithProgressForCropVideo(Para.Item1);
Progress <double> CropVideoProgress = new Progress <double>((CurrentValue) =>
{
try
{
string Tag = "CropVideoNotification";
NotificationData data = new NotificationData
{
SequenceNumber = 0
};
data.Values["ProgressValue"] = Math.Round(CurrentValue / 100, 2, MidpointRounding.AwayFromZero).ToString();
data.Values["ProgressValueString"] = Convert.ToInt32(CurrentValue) + "%";
ToastNotificationManager.CreateToastNotifier().Update(data, Tag);
}
catch (Exception ex)
{
LogTracer.Log(ex, "Toast notification could not be sent");
}
});
try
{
Para.Item2.RenderToFileAsync(Para.Item1, Para.Item4, Para.Item3).AsTask(AVTranscodeCancellation.Token, CropVideoProgress).Wait();
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ShowCropCompleteNotification();
}).AsTask().Wait();
}
catch (AggregateException)
{
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ShowCropCancelNotification();
}).AsTask().Wait();
Para.Item1.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
catch (Exception)
{
Para.Item1.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
LogTracer.Log("Crop video failed");
}
finally
{
AVTranscodeCancellation?.Dispose();
AVTranscodeCancellation = null;
IsAnyTransformTaskRunning = false;
}
}
}
}, (DestinationFile, Composition, EncodingProfile, TrimmingPreference), TaskCreationOptions.LongRunning));
}
