Motion on mini2440

Hi all,


I'd like to compils motion and install it on the mini. But as I'm a newbie
for some aspects, I request your help for some explanation.

Motion relies on libjpeg and ffmpeg libraries (also mysql but I don't need
it).
So first I tried to compile from sources for x86 before doing the same
thing for ARM. But I must have missed something:

First, I downloaded libjpeg, then ./configure, make and make install
next, same thing for ffmpeg and just after, the same for motion.

Everything compiled fine, but when trying to execute motion, it fails
saying that it didn't find libjpeg.so.8 or something like that. I checked
in /lib and the file is present.

So I'm a bit confused with libraries. Furthermore, I wonder how does it
work when cross compiling for ARM.

I have understood that I should specify to use the ARM C compiler with CC=
directive or something similar. So ./configure should prepare the
compilation for ARM, then make shoud compile it for ARM. Shall I run the
make install? In that case, the ARM compiled libraries will instal in the
/lib directory of the host and that's not that I want?
I think I should give the destination path as an option to get all the
compiled libraries in a directory and then, copy all the files on the /lib
folder of the mini?

As you see, I know a bit the principle, but everything is not clear.

Would someone bee so kind to explain me in details how the things work for
x86 compilation, and then explain me the difference with ARM compilation?

Homepage of motion, if you're interested
http://www.lavrsen.dk/foswiki/bin/view/Motion/WebHome

Thanks

Nobody to explain how to build / use libraries in a general way?

Take a look into the various existing cross build tools how they manage the
cross compile case.
For the native case you can run the 'ldd' command on your executable and
see, what libraries are required and if they get found.

Hello Screwface,

If you are interested and if you use emdebian, you have this
package :
motion => http://packages.debian.org/en/stable/graphics/motion
With this files => ttp://packages.debian.org/en/lenny/armel/motion/filelist

Best regards

Search for this book:

<Building.Embedded.Linux.Systems.pdf>

I have found it very helpful.

Hi,

I finally managed to compile motion for the mini several months ago, but I
missed to give the link of the tutorial I used.
Here it is, for those who are interested in.

http://cchia-cwp.blogspot.com/2010/03/motion-webcam.html

Regards

Hello,

Could you explain how to install the packages mentionned by ellion88?
I'm running emdebian squeeze, but I don't know how to install the packages
with the given links.

Thanks for your help

Nobody to explain how to install a Debian package on EmDebian? I think
there is something to add to indicate a debian repository to apt-get, but
don't know what

Hello,

You have to add the debian repository in your /etc/apt/sources.list
In my case the file is

deb http://ftp.fr.debian.org/debian squeeze main
deb http://www.emdebian.org/grip squeeze main

Then
#apt-get update
#apt-get install motion

Hi,

I followed the instructions in http://cchia-cwp.blogspot.in/ to install
ffmpeg. But when i run ffmpeg -version , i get -/bin/sh: ffmpeg: not found.


Can anyone help?


Anvesh

Either add /usr/local/bin to your $PATH environment variable, or move
ffmpeg to /bin or /usr/bin

Also check that the ffmpeg binary is executable.