private void Grid_Loaded(object sender, RoutedEventArgs e)
{
SceneExtractorArguments arguments = new SceneExtractorArguments
{
InputFile = _video,
OutputDirectory = FfmpegWrapper.CreateRandomTempDirectory()
};
SceneExtractorWrapper wrapper = new SceneExtractorWrapper(arguments, _viewmodel.Settings.FfmpegPath);
wrapper.Execute();
var scenes = new List <SceneViewModel>();
foreach (string imageFile in Directory.EnumerateFiles(arguments.OutputDirectory))
{
string number = Path.GetFileNameWithoutExtension(imageFile);
int frame = int.Parse(number);
SceneFrame scene = arguments.Result.Single(w => w.Index == frame);
scenes.Add(new SceneViewModel
{
IsSelected = false,
TimeStamp = scene.TimeStamp,
Duration = scene.Duration,
Preview = new BitmapImage(new Uri(imageFile, UriKind.Absolute))
});
}
Scenes = scenes;
}
protected override GeneratorResult ProcessInternal(ThumbnailBannerGeneratorSettings settings, GeneratorEntry entry)
{
try
{
entry.State = JobStates.Processing;
_wrapper = new FfmpegWrapper(FfmpegExePath);
var videoInfo = _wrapper.GetVideoInfo(settings.VideoFile);
if (!videoInfo.IsGoodEnough())
{
entry.State = JobStates.Done;
entry.DoneType = JobDoneTypes.Failure;
entry.Update("Failed", 1);
return(GeneratorResult.Failed());
}
TimeSpan duration = videoInfo.Duration;
TimeSpan intervall = duration.Divide(settings.Columns * settings.Rows + 1);
var frameArguments = new FrameConverterArguments
{
Width = 800,
Intervall = intervall.TotalSeconds,
StatusUpdateHandler = (progress) => { entry.Update(null, progress); },
InputFile = settings.VideoFile,
OutputDirectory = FfmpegWrapper.CreateRandomTempDirectory()
};
entry.Update("Extracting Frames", 0);
var frames = _wrapper.ExtractFrames(frameArguments);
if (_canceled)
{
return(GeneratorResult.Failed());
}
entry.Update("Saving Thumbnails", 1);
List <ThumbnailBannerGeneratorImage> images = new List <ThumbnailBannerGeneratorImage>();
foreach (var frame in frames)
{
images.Add(new ThumbnailBannerGeneratorImage
{
Image = frame.Item2,
Position = frame.Item1
});
}
ThumbnailBannerGeneratorData data = new ThumbnailBannerGeneratorData();
data.Settings = settings;
data.Images = images.ToArray();
data.VideoName = settings.VideoFile;
data.VideoInfo = videoInfo;
data.FileSize = new FileInfo(settings.VideoFile).Length;
var result = CreateBanner(data);
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create((BitmapSource)result));
using (FileStream stream = new FileStream(settings.OutputFile, FileMode.Create))
encoder.Save(stream);
Directory.Delete(frameArguments.OutputDirectory);
entry.DoneType = JobDoneTypes.Success;
entry.Update("Done", 1);
return(GeneratorResult.Succeeded(settings.OutputFile));
}
catch (Exception)
{
entry.Update("Failed", 1);
entry.DoneType = JobDoneTypes.Failure;
return(GeneratorResult.Failed());
}
finally
{
entry.State = JobStates.Done;
if (_canceled)
{
entry.DoneType = JobDoneTypes.Cancelled;
entry.Update("Cancelled", 1);
}
}
}
protected override GeneratorResult ProcessInternal(ThumbnailGeneratorSettings settings, GeneratorEntry entry)
{
try
{
entry.State = JobStates.Processing;
_wrapper = new FfmpegWrapper(FfmpegExePath);
double intervall = settings.Intervall;
if (settings.Intervall < 1)
{
var info = _wrapper.GetVideoInfo(settings.VideoFile);
if (!info.IsGoodEnough())
{
entry.Update("Failed", 1);
entry.DoneType = JobDoneTypes.Failure;
return(GeneratorResult.Failed());
}
const double targetFrameCount = 500.0;
intervall = info.Duration.TotalSeconds / targetFrameCount;
intervall = Math.Min(Math.Max(1, intervall), 10);
}
FrameConverterArguments arguments = new FrameConverterArguments
{
StatusUpdateHandler = (progress) => { entry.Update(null, progress); },
InputFile = settings.VideoFile,
OutputDirectory = FfmpegWrapper.CreateRandomTempDirectory(),
Intervall = intervall,
Width = settings.Width,
Height = settings.Height,
ClipLeft = settings.ClipLeft,
DeLense = settings.ClipLeft
};
string thumbfile = Path.ChangeExtension(settings.VideoFile, "thumbs");
entry.Update("Extracting Frames", 0);
var frames = _wrapper.ExtractFrames(arguments);
if (_canceled)
{
return(GeneratorResult.Failed());
}
entry.Update("Saving Thumbnails", 1);
VideoThumbnailCollection thumbnails = new VideoThumbnailCollection();
foreach (var frame in frames)
{
thumbnails.Add(frame.Item1, frame.Item2);
}
using (FileStream stream = new FileStream(thumbfile, FileMode.Create, FileAccess.Write))
{
thumbnails.Save(stream);
}
thumbnails.Dispose();
entry.DoneType = JobDoneTypes.Success;
entry.Update("Done", 1);
return(GeneratorResult.Succeeded(thumbfile));
}
catch (Exception)
{
entry.DoneType = JobDoneTypes.Failure;
return(GeneratorResult.Failed());
}
finally
{
entry.State = JobStates.Done;
if (_canceled)
{
entry.DoneType = JobDoneTypes.Cancelled;
}
}
}