georg-jung / mozjpegsharp Goto Github PK

Using your own code, you could make a very useful application. It shoud be given a path and it shoul iterate over all files in tis directory and the sub direcories. It should do the safest thing i.e. make the jpg smaller such that is pixel by pixel identical. When a jpg is found, let mozjpeg create something like jpg.tmp. If this file is smaller, the original file can be overwritten by the contents of jpg.tmp. Either way, jpg.tmp shpuld be deleted afterwards. This is better than deleting the original file and then renaming jpg.tmp since it will cause fragmentation. Most jpg files from your smartcam can be reduced by 6% or so and most people have folders with lots of jpeg files.

Best regards,
Fredrik

The sample code provided on the code page https://github.com/georg-jung/MozJpegSharp no longer compiles.

This line
var compressed = tjc.Compress(bmp, MozJpegSharp.TJSubsamplingOption.Chrominance420, 75, MozJpegSharp.TJFlags.None);
reports:
Severity Code Description Project File Line Suppression State
Error CS1501 No overload for method 'Compress' takes 4 arguments

Can you provide an updated base sample please :)

Hi there,
I'm hoping this is a very silly question and I've missed something basic, but I was running through the code and spotted this:

I was expecting this to be "mozjpeg" as opposed to the "turbojpeg" in Quamotion.TurboJpegWrapper.

I assume you're shipping the MozJpeg dll with nuget but just never renamed this in code / the nuget package generation steps?

This call tjc.Compress(bmp, MozJpegSharp.TJSubsamplingOption.Chrominance420, 75, MozJpegSharp.TJFlags.None);

Is giving an exception

Provided pixel format "8207" is not supported

Is there anything I can do to shrink these? Squoosh will shrink them fine.

Thanks

I am running into pixilation issue when using MozJpegSharp from within docker deployment via standard MS template which is Debian.

When running compression from within VS on windows - results are good. However after deploying the same code to Docker, compressing any image appears to cause fairly noticeable pixilation.

I've tried changing parameters, but the results are the same.

Windows:

Linux:

Source file:

Any suggestions appreciated.

Encoding with (F#):

let writeMozJpg (img:System.Drawing.Image) path =
        async {
            use bmp = new System.Drawing.Bitmap(img)
            use tjc = new MozJpegSharp.TJCompressor();
            let compressedBytes = tjc.Compress(bmp, MozJpegSharp.TJSubsamplingOption.Chrominance420, 75, MozJpegSharp.TJFlags.AccurateDct)

            if compressedBytes.Length > 0 then
                use file = File.Create(path)
                do! file.AsyncWrite(compressedBytes,0,compressedBytes.Length)
                file.Close()
                return (true, path)
            else
                return (false, String.Empty)
        }

Dockerfile:

FROM mcr.microsoft.com/dotnet/aspnet:5.0
EXPOSE 8181

RUN apt update
RUN apt install -y libgdiplus
RUN apt install -y libturbojpeg0

COPY bin/Release/net5.0/publish/ App/
WORKDIR /App
ENTRYPOINT ["dotnet", "matter.App.dll", "appsettings.json"]