protected override Image GenerateImage(MediaFile videoFile, ThumbnailGenerationOptions options)
{
var baseImage = _thumbnailGenerator.Generate(videoFile, options).Image;
var sizedImage = ResizeImage(baseImage, options.ImageSize.Width, options.ImageSize.Height);
return sizedImage;
}
protected override string GenerateKey(MediaFile videoFile, ThumbnailGenerationOptions options)
{
return string.Format("{0}_{1}_{2}",
videoFile.Id,
options.PointInTime.ResolveAgainst(videoFile.Duration).ToTicksString(),
options.ImageSize);
}
private ThumbnailImage GenerateThumbnail(MediaFile videoFile, ThumbnailGenerationOptions options, string thumbnailFile)
{
_ffmpeg.CreateThumbnailImage(videoFile.Path, options.PointInTime.ResolveAgainst(videoFile.Duration), thumbnailFile);
var image = _fileManager.LoadImage(thumbnailFile);
return new ThumbnailImage(image, options.ImageType);
}
public void GenerateThumbnails(ThumbnailGenerationOptions options)
{
var i = 0;
var count = _library.Files.All.Count();
foreach (var file in _library.Files.All)
{
_thumbnailGenerator.Generate(file, options);
ThumbnailGenerated(this, new ThumbnailGeneratedEventArgs(file, ++i, count));
}
}
public ThumbnailImage Generate(MediaFile videoFile, ThumbnailGenerationOptions options)
{
string thumbnailFile = CreateUniqueThumbnailFile(TEMP_FILE_NAME_BASE, options.ImageType.Extension);
try
{
return GenerateThumbnail(videoFile, options, thumbnailFile);
}
finally
{
_fileManager.EnsureFileDeleted(thumbnailFile);
}
}
private Image GetImage(MediaFile videoFile, ThumbnailGenerationOptions options)
{
var key = GenerateKey(videoFile, options);
var file = _cacheLocation + "\\" + key + options.ImageType.Extension;
var image = LoadImage(file);
if (image == null)
{
image = GenerateImage(videoFile, options);
SaveImage(image, file);
}
return image;
}
protected override Image GenerateImage(MediaFile videoFile, ThumbnailGenerationOptions options)
{
return _thumbnailGenerator.Generate(videoFile, options).Image;
}
protected abstract string GenerateKey(MediaFile videoFile, ThumbnailGenerationOptions options);
protected abstract Image GenerateImage(MediaFile videoFile, ThumbnailGenerationOptions options);
public ThumbnailImage Generate(MediaFile videoFile, ThumbnailGenerationOptions options)
{
return new ThumbnailImage(GetImage(videoFile, options), options.ImageType);
}