public static void Play(this IPreviewFrame previewFrame)
{
RunOnVideo(previewFrame.Holder, mediaElement =>
{
mediaElement.Play();
});
}
public static void SetVideoPosition(this IPreviewFrame previewFrame, TimeSpan position)
{
RunOnVideo(previewFrame.Holder, mediaElement =>
{
mediaElement.Position = position;
});
}
public static TimeSpan GetVideoPosition(this IPreviewFrame previewFrame)
{
return(RunOnVideo(previewFrame.Holder, mediaElement =>
{
return mediaElement.Position;
}));
}
public static void Pause(this IPreviewFrame previewFrame)
{
RunOnVideo(previewFrame.Holder, mediaElement =>
{
if (mediaElement.CanPause)
{
mediaElement.Pause();
}
});
}
public static void SetImage(this IPreviewFrame previewFrame)
{
Grid holder = previewFrame.Holder;
if (HasChild <PaddingFrame>(holder))
{
// There is already an image on here.
RemoveVideo(holder);
return;
}
RemoveChildren(holder);
PreviewWindowViewModel viewModel;
var paddingFrame = new PaddingFrame();
paddingFrame.SetBinding(PaddingFrame.SourceProperty, nameof(viewModel.PreviewImageServiceClient) + "." + nameof(viewModel.PreviewImageServiceClient.PreviewImage));
paddingFrame.SetBinding(PaddingFrame.OutputSizeProperty, nameof(viewModel.PreviewImageService) + "." + nameof(viewModel.PreviewImageService.OutputSizeInfo));
paddingFrame.SetBinding(PaddingFrame.PadColorProperty, nameof(viewModel.PreviewImageService) + "." + nameof(viewModel.PreviewImageService.PadColor));
previewFrame.Holder.Children.Add(paddingFrame);
}
public static void SetVideo(this IPreviewFrame previewFrame, Action onCompleted, Action onFailed, IObservable <double> volume)
{
Grid holder = previewFrame.Holder;
if (HasChild <MediaElement>(holder))
{
// There is already a video in here.
RemoveImage(holder);
return;
}
// Close any video that was there before.
RemoveVideo(holder);
// Add on a new video
var mediaElement = new MediaElement
{
Stretch = Stretch.Fill,
Opacity = 0
};
var viewModel = (PreviewWindowViewModel)previewFrame.Holder.DataContext;
mediaElement.SetBinding(MediaElement.SourceProperty, nameof(viewModel.PreviewFilePath));
mediaElement.LoadedBehavior = MediaState.Manual;
mediaElement.ScrubbingEnabled = true;
mediaElement.MediaOpened += (sender, args) =>
{
if (mediaElement.NaturalDuration.HasTimeSpan)
{
viewModel.PreviewVideoDuration = mediaElement.NaturalDuration.TimeSpan;
}
else
{
viewModel.PreviewVideoDuration = TimeSpan.Zero;
}
// Video starts out black so we want to hold it at the start until it displays fully.
mediaElement.Pause();
DispatchUtilities.BeginInvoke(() =>
{
OnVideoPlaying(holder);
mediaElement.Play();
});
};
mediaElement.MediaFailed += (sender, args) =>
{
onFailed();
};
mediaElement.MediaEnded += (sender, args) =>
{
onCompleted();
};
volume.Subscribe(v =>
{
mediaElement.Volume = v;
});
mediaElement.Play();
holder.Children.Add(mediaElement);
}
public static void CloseVideo(this IPreviewFrame previewFrame)
{
RemoveVideo(previewFrame.Holder);
}
public static void Close(this IPreviewFrame previewFrame)
{
RemoveChildren(previewFrame.Holder);
}