public static IWriter Open(Stream stream, ArchiveType archiveType, WriterOptions writerOptions)
{
switch (archiveType)
{
case ArchiveType.GZip:
{
if (writerOptions.CompressionType != CompressionType.GZip)
{
throw new InvalidFormatException("GZip archives only support GZip compression type.");
}
return(new GZipWriter(stream, writerOptions.LeaveStreamOpen));
}
case ArchiveType.Zip:
{
return(new ZipWriter(stream, new ZipWriterOptions(writerOptions)));
}
case ArchiveType.Tar:
{
return(new TarWriter(stream, writerOptions));
}
default:
{
throw new NotSupportedException("Archive Type does not have a Writer: " + archiveType);
}
}
}
protected AbstractWriter(ArchiveType type, WriterOptions writerOptions)
{
WriterType = type;
WriterOptions = writerOptions;
}
private void convertToZip(string filename)
{
if (string.IsNullOrEmpty(SelectedFilePath))
{
return;
}
if (File.Exists(filename))
{
if (MessageBox.Show("Overwrite?", "Save", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
File.Delete(filename);
}
else
{
return;
}
}
Task <int> task1 = Task.Run(() => {
IsVisibleProgress = Visibility.Visible;
IsEnableProgressClose = false;
var opts = new SharpCompress.Writers.WriterOptions(CompressionType.Deflate);
opts.ArchiveEncoding = new SharpCompress.Common.ArchiveEncoding();
//opts.ArchiveEncoding.Default = System.Text.Encoding.GetEncoding("shift_jis");
opts.ArchiveEncoding.Default = System.Text.Encoding.UTF8;
using (var zip = File.OpenWrite(filename))
using (var zipWriter = WriterFactory.Open(zip, ArchiveType.Zip, opts))
{
ProgressOutFileName = SelectedFilePath;
IArchive archive = ArchiveFactory.Open(SelectedFilePath);
var entries = archive.Entries.Where(e =>
e.IsDirectory == false && (
Path.GetExtension(e.Key).Equals(".jpg") ||
Path.GetExtension(e.Key).Equals(".jpeg") ||
Path.GetExtension(e.Key).Equals(".png") ||
Path.GetExtension(e.Key).Equals(".bmp")));
var list = entries.ToList();
ProgressMax = list.Count;
ProgressValue = 0;
foreach (var item in entries.ToList())
{
ProgressFileName = item.Key;
var outStream = new MemoryStream();
#if IMAGE_RESIZER
var instructions = new Instructions();
instructions.Format = "jpg";
if (IsResize)
{
instructions.Width = ImageWidth;
instructions.Height = ImageHeight;
instructions.Mode = FitMode.Max;
}
if (IsCompress)
{
if (IsGrayscale)
{
instructions.Grayscale = GrayscaleMode.Flat; // TODO: check mode
}
instructions.JpegSubsampling = JpegSubsamplingMode.Y4Cb2Cr0;
instructions.JpegQuality = JpegQuality;
}
ImageBuilder.Current.Build(new ImageJob(item.OpenEntryStream(), outStream, instructions, false, true));
#endif
#if IMAGE_SHARP
using (Image image = Image.Load(item.OpenEntryStream()))
{
if (IsResize)
{
image.Mutate(x => x
.Resize(new ResizeOptions
{
Mode = ResizeMode.Min,
Size = new Size(ImageWidth, ImageHeight),
})
);
}
if (IsCompress)
{
if (IsGrayscale)
{
image.Mutate(x => x
.Grayscale()
);
}
// Use ImageSharp
if (false)
{
var enc = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder();
enc.Quality = JpegQuality;
enc.Subsample = SixLabors.ImageSharp.Formats.Jpeg.JpegSubsample.Ratio444;
if (ImageFormat == ImgFmt.IMG_444)
{
enc.Subsample = SixLabors.ImageSharp.Formats.Jpeg.JpegSubsample.Ratio444;
}
else if (ImageFormat == ImgFmt.IMG_420)
{
enc.Subsample = SixLabors.ImageSharp.Formats.Jpeg.JpegSubsample.Ratio420;
}
image.SaveAsJpeg(outStream, enc);
}
// Use MozJpeg
if (true)
{
var bmpenc = new SixLabors.ImageSharp.Formats.Bmp.BmpEncoder();
image.Save(outStream, bmpenc);
outStream.Seek(0, SeekOrigin.Begin);
var tjc = new MozJpegSharp.TJCompressor();
var b = new System.Drawing.Bitmap(outStream);
//var compressed = tjc.Compress(b, MozJpegSharp.TJSubsamplingOption.Chrominance420, 75, MozJpegSharp.TJFlags.None);
var compressed = tjc.Compress(b, MozJpegSharp.TJSubsamplingOption.Chrominance420, 30, MozJpegSharp.TJFlags.None);
outStream = new MemoryStream(compressed);
}
}
else
{
image.SaveAsJpeg(outStream);
}
}
#endif
outStream.Seek(0, SeekOrigin.Begin);
zipWriter.Write(item.Key, outStream);
ProgressValue++;
}
}
IsEnableProgressClose = true;
return(1);
});
}
