INstalled and compiled in Centos

[uhlhosting]

Nothing works... If I run mozpeg is just blank...

Used this steps to install:
autoreconf -fiv
mkdir build && cd build
sh ../configure
sudo make install

Runing Centos 7.
The files are all present it simply does not do anything...

[kornelski]

What do you mean by blank? How are you trying to use it?

[uhlhosting]

I run mozjpeg and nothing shows.

[kornelski]

mozjpeg mainly is a library with a C API for use by other tools, so it doesn't have any GUI by itself.

It comes with a simple command-line tool, cjpeg, that only converts files to JPEG. It has no GUI, it does not display anything.

If you're not a programmer, but you're looking to use mozjpeg, look for other applications built on top of mozjpeg.

For Mac I wrote https://imageoptim.com and I have a basic web UI for other platforms: https://imageoptim.com/mozjpeg

[uhlhosting]

Hello I compiled this on Centos 7 . If I run the cmdline i get this:

`root@panel [~/uhlhosting/git]# mozjpeg

`

Every cmd line has a help menu or something. Or instructions or says something, returns something.
I followed this install: https://blarg.co.uk/blog/how-to-install-mozjpeg

[kornelski]

This one, like cat, by default expects input from stdin.

[uhlhosting]

So how would it look like a working cmd line to optimize jpegs?

[kornelski]

See

cjpeg -h

(or mozjpeg -h) for instructions

[uhlhosting]

Yes thank you that works!

[uhlhosting]

what would be a good swich to optimise images, no rezise, no rename, just optimisation and maybe removal of any tags. Thank you!

[kornelski]

Check out the jpegtran command. It's the same as for libjpeg.

[FossPrime]

I'm on Fedora, ran uhlhosting's steps and I get "make: *** No targets specified and no makefile found. Stop." Has anyone here gotten this to build?

[kornelski]

"No makefile found" means you haven't run ./configure.

[FossPrime]

@pornel thanks for the tip. I had ran ./configure but it runs into an error configure: error: no nasm (Netwide Assembler) found :/ I'm looking into it.
Update: Success! on RHEL you'll need nasm before running ./configure sudo dnf install nasm

Instructions for Fedora

sudo dnf install nasm automake libtool
autoreconf -fiv
./configure
make
./cjpeg -quality 85 -outfile ~/output.jpg ~/input.jpg

Centos7 Instructions

sudo yum install nasm automake libtool
./configure
make
./cjpeg -quality 85 -outfile ~/output.jpg ~/input.jpg

[dvershinin]

Users of CentOS / RedHat 7 may want to install jpegoptim compiled with MozJPEG using these instructions (no compilation required, ready to install package).

[goodpsdev8]

Users of CentOS / RedHat 7 may want to install jpegoptim compiled with MozJPEG using these instructions (no compilation required, ready to install package).

It dosn't work now.

[dvershinin]

@goodpsdev8 It works. Access to the repository is now subscription-based.