Processing 1.0 - Processing Discourse - Initial JMyron on Linux Implementation

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Index › Programming Questions & Help › Video Capture, Movie Playback, Vision Libraries › Initial JMyron on Linux Implementation

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Initial JMyron on Linux Implementation (Read 1547 times)

steved YaBB Newbies Offline Posts: 4	Initial JMyron on Linux Implementation Oct 12^th, 2007, 4:51am Hello, I have just posted an initial Video for Linux implementation for JMyron. It's really early, but if you'd like to take a look at it, feel free to download it at: http://piratestudios.com/v4ljmyron/v4ljmyron-20071011.tgz Make sure to read through the README. Thanks, Steve

poliph

Re: Initial JMyron on Linux Implementation
Reply #1 - Nov 14^th, 2007, 12:54am

Hi,

I was trying to build your interface but I got this error:
mkdir JMyron; cp ../source/JMyron.java JMyron/ ; /home/sdetwiler/processing-0125/jikes -classpath /home/sdetwiler/processing-0125/java/lib/rt.jar:/home/sdetwiler/processing-0125/
lib:/home/sdetwiler/processing-0125/lib/pde.jar:/home/sdetwiler/processing-0125/
lib/core.jar:/home/sdetwiler/processing-0125/lib/antlr.jar:/home/sdetwiler/proce
ssing-0125/lib/oro.jar:/home/sdetwiler/processing-0125/lib/registry.jar:/home/sd
etwiler/processing-0125/lib/mrj.jar JMyron/*.java
/bin/sh: /home/sdetwiler/processing-0125/jikes: not found
make: *** [JMyron/JMyron.class] Error 127

It seems that some files are lacking? I'm just starting with linux so...

Thanks

steved YaBB Newbies Offline Posts: 4	Re: Initial JMyron on Linux Implementation Reply #2 - Nov 14^th, 2007, 1:14am Ah, something I forgot to document... Please edit the Makefile.linux file and update the PROCESSING variable to the path where you have processing installed. By default it's set to the local path on my pc, which doesn't help you Steve

Re: Initial JMyron on Linux Implementation
Reply #3 - Dec 21^st, 2007, 7:44am

Hi, and thanks a lot for your work.

I'm trying to compile, but running into some errors. First of all, it's looking for a mrj.jar file in my processing/lib/ folder, which doesn't exist. I copied this file from my Arduino installation, and went past that error, but now I'm getting this:

$ make -f Makefile.linux
g++ -g0 -O3 -D V4L -o test test.o ezcam.o v4lCamera.o
g++ -c ../source/myron.cpp -I .
../source/myron.cpp: In member function ‘void Myron::update()’:
../source/myron.cpp:217: warning: converting to ‘unsigned char’ from ‘float’
../source/myron.cpp:227: warning: passing ‘float’ for argument 1 to ‘int abs(int)’
../source/myron.cpp: In member function ‘int* Myron::globQuads(float, float)’:
../source/myron.cpp:467: error: ‘memcpy’ was not declared in this scope
../source/myron.cpp: In member function ‘void Myron::adapt()’:
../source/myron.cpp:781: warning: converting to ‘unsigned char’ from ‘float’
../source/myron.cpp:782: warning: converting to ‘unsigned char’ from ‘float’
../source/myron.cpp:783: warning: converting to ‘unsigned char’ from ‘float’
make: *** [myron.o] Error 1

This is under Ubuntu 7.10, with Processing 0135.

steved

Re: Initial JMyron on Linux Implementation
Reply #4 - Jan 14^th, 2008, 6:20am

I've just made a new release of JMyron on Linux.

http://piratestudios.com/v4ljmyron

* Updated build instructions.
* Included a modified copy of myron.cpp that includes <string.h> for memcpy.
* Removed dependency on old mrj.jar file from 0125.

This should correct the problems that people have been reporting about not being able to compile.

Please try to break it and let me know how you did it.

Steve

Re: Initial JMyron on Linux Implementation
Reply #5 - Feb 3^rd, 2008, 4:54pm

Got it to compile, but had to add $(PROCESSING)/libraries/JMyron/library/JMyron.jar to CLASSPATH in Makefile.linux. Without I get this messages:

hb@myhost:~/sketchbook/v4ljmyron/webcamxtra/ezcam$ make -f Makefile.linux2
g++ -g0 -O3 -D V4L -c v4lCamera.cpp
g++ -g0 -O3 -D V4L -c ezcam.cpp
g++ -g0 -O3 -D V4L -c test.cpp
g++ -g0 -O3 -D V4L -o test test.o ezcam.o v4lCamera.o
mkdir JMyron; cp ../source/JMyron.java JMyron/ ; /usr/share/java/processing/jikes -classpath /opt/java/jre/lib/rt.jar:/usr/share/java/processing/lib:/usr/share/java/processi
ng/lib/pde.jar:/usr/share/java/processing/lib/core.jar:/usr/share/java/processin
g/lib/antlr.jar:/usr/share/java/processing/lib/oro.jar:/usr/share/java/processin
g/lib/registry.jar JMyron/*.java
/opt/java/bin/javah JMyron.JMyron
error: cannot access JMyron.JMyron
class file for JMyron.JMyron not found
javadoc: error - Class JMyron.JMyron not found.
Error: No classes were specified on the command line. Try -help.
make: *** [JMyron_JMyron.h] Fehler 15

The problem is: My webcam only supports YUYV and MJPG, not RGB24...

Could you please add support for one of these formats? Would be great!

steved

Re: Initial JMyron on Linux Implementation
Reply #6 - Feb 4^th, 2008, 7:36am

A new release is available at http://piratestudios.com//v4ljmyron/

Updates include:
* Large rewrite to move to V4L2.
* Dropped support for V4L.
* Added support for YUYV cameras. Temporrily dropped RGB camera support.
* Updated Makefile.linux CLASSPATH. (Thanks hb).

This has been tested on Processing 0135.

Feedback is always welcome.

Steve

hb YaBB Newbies Offline Posts: 2	Re: Initial JMyron on Linux Implementation Reply #7 - Feb 4^th, 2008, 1:03pm Great! Thank you very much! Compiled and JMyron-examples work as expected (as far as I have tested them)...

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