public EditVideoViewModel(ICacheService cacheService, ICommonErrorHandler errorHandler, IStateService stateService, INavigationService navigationService, IMTProtoService mtProtoService, ITelegramEventAggregator eventAggregator)
: base(cacheService, errorHandler, stateService, navigationService, mtProtoService, eventAggregator)
{
VideoFile = StateService.VideoFile;
StateService.VideoFile = null;
IsCompressionEnabled = true;
NotifyOfPropertyChange(() => IsCompressionEnabled);
BeginOnThreadPool(async() =>
{
var properties = await VideoFile.GetBasicPropertiesAsync();
var videoProperties = await VideoFile.Properties.GetVideoPropertiesAsync();
Size = properties.Size;
Duration = videoProperties.Duration.TotalSeconds;
Width = videoProperties.Width;
Height = videoProperties.Height;
DurationString = GetDurationString(videoProperties.Duration);
NotifyOfPropertyChange(() => DurationString);
var originalSizeString = FileSizeConverter.Convert((long)properties.Size);
OriginalVideoParameters = string.Format("{0}x{1}, {2}, {3}", videoProperties.Width, videoProperties.Height, DurationString, originalSizeString);
NotifyOfPropertyChange(() => OriginalVideoParameters);
var maxLength = Math.Max(videoProperties.Width, videoProperties.Height);
var scaleFactor = maxLength > 640.0 ? 640.0 / maxLength : 1.0;
if (scaleFactor == 1.0)
{
IsCompressionEnabled = false;
NotifyOfPropertyChange(() => IsCompressionEnabled);
Compression = false;
}
EditedSize = (ulong)(properties.Size * scaleFactor * scaleFactor);
var editedSizeString = FileSizeConverter.Convert((long)EditedSize);
var editedHeight = videoProperties.Height * scaleFactor;
var editedWidth = videoProperties.Width * scaleFactor;
EditedVideoParameters = string.Format("{0}x{1}, {2}, ~{3}", editedWidth, editedHeight, DurationString, editedSizeString);
NotifyOfPropertyChange(() => EditedVideoParameters);
ThumbPhoto = await GetFileThumbAsync(VideoFile);
NotifyOfPropertyChange(() => ThumbPhoto);
});
}
