README.md

MozJpeg-wrapper

The most complete MozJpeg .NET wrapper in pure managed C#.

Exposes decoding API, encoding API and information API via turbojpeg-compatible API info for any JPEG file). In the future I'll update to expose more advanced Decoding API.

The wrapper is in safe managed code in one class. No need for external dll except turbojpeg_x86.dll and turbojpeg_x64.dll (included v3.2). The wrapper work in 32, 64 bit or ANY system (automatic select the apropiate library).

The code is fully commented and includes a simple example for using the wrapper.

Use

Load JPEG image for JPEG file

using (MozJpeg mozJpeg = new MozJpeg())
	this.pictureBox.Image = mozJpeg.Load(pathFileName);

Save bitmap to JPEG file with quality 85

using (MozJpeg mozJpeg = new MozJpeg())
	mozJpeg.Save(bmp, fileName, 85);

Decode JPEG date in byte array to bitmap and load in PictureBox container

byte[] rawJpeg = File.ReadAllBytes("test.jpg");
using (clsWebP mozJpeg = new rawJpeg())
	  this.pictureBox.Image = mozJpeg.Decode(rawJpeg);

Encode bitmap to byte array with quality 75, without JFIF, with accurate DCT, optimized scan and tuned for MS-SSIM (maximum compression and minimum size)

byte[] rawJpeg;
using (MozJpeg mozJpeg = new MozJpeg())
		rawJpeg = mozJpeg.Encode(bmp, 75, false, TJFlags.ACCURATEDCT |
		                         TJFlags.DC_SCAN_OPT2 | TJFlags.TUNE_MS_SSIM);
File.WriteAllBytes("test.webp", rawJpeg);

Get info from JPEG file

byte[] rawJpeg = File.ReadAllBytes("test.jpg");
using (clsWebP mozJpeg = new rawJpeg())
		mozJpeg.GetInfo(rawJpeg, out width, out height, out horizontalResolution,
		                out verticalResolution, out subsampl, out colorspace);

Thanks to pornel for his amazing code.

Without his work this wrapper would not have been possible.