Capturing MJPEG

XavierClinquart

Hello im a student from belguim and im dooing a project atm and i have to inport MJPEG data from a ip cam into Qt.
this is my first year of Qt and i searched al around and i cant find somthing that helps me get started.
could annyone get me anny idea's how to get started?

thx on forward

martonmiklos

If your camera uses multipart http or ICamView properitary protocoll your friend should be the
QImageGrabber:

http://code.google.com/p/qimagegrabber/

Let me know if you have any questions/comments with the library!

XavierClinquart

i will defenetly have a look at the Qimagegrabber thanks sir ill let you know if i have anny questions/comments

macchiaazzurro

[quote author="martonmiklos" date="1333455279"]If your camera uses multipart http or ICamView properitary protocoll your friend should be the
QImageGrabber:

http://code.google.com/p/qimagegrabber/

Let me know if you have any questions/comments with the library![/quote]

Sorry to hijack, XavierClinquart.

@martonmiklos, how do i actually use your library? What to download and where do i save it to?

Thanks~!

martonmiklos

Sync the latest svn trunk with:
svn checkout http://qimagegrabber.googlecode.com/svn/trunk/ qimagegrabber-read-only

There is an example folder containing an example how to use the library.

macchiaazzurro

[quote author="martonmiklos" date="1363677283"]Sync the latest svn trunk with:
svn checkout http://qimagegrabber.googlecode.com/svn/trunk/ qimagegrabber-read-only

There is an example folder containing an example how to use the library. [/quote]

Thanks, i don't know how to use svn checkout, but i suppose it's following way via QtCreator?

New project
Import project
Subversion Checkout

Then the first problem i encounter was:
[quote]Failed to open project in '/Applications/Qt5.0.1/qimagegrabber'.
Could not find any project files matching (*.pro, CMakeLists.txt, *.cmake, *.creator, *.qmlproject) in the directory '/Applications/Qt5.0.1/qimagegrabber'.[/quote]

nonetheless i was able to manually open up your examples.pro

As i'm using Qt5.0.1 on Mac, it seems that Qt library configuration is slightly different.

include <QtGui/QApplication> = include <QApplication> -> this should be okay?(no errors)

Then this is the main part executing your program...

_#include <qwt/qwt_plot_curve.h>

/Applications/Qt5.0.1/qimagegrabber/examples/qimagegrabber_benchmark/dialogcomparesettings.h:7: error: 'qwt/qwt_plot_curve.h' file not found
#include <qwt/qwt_plot_curve.h>
^_

Sorry for being such a beginner :)

martonmiklos

I have never tried to compile it with Qt5.
I am installing the Qt5 now and

The benchmark example depends on the Qwt. I will create a simple separate example today without any extra dependencies.

macchiaazzurro

[quote author="martonmiklos" date="1363686943"]I have never tried to compile it with Qt5.
I am installing the Qt5 now and

The benchmark example depends on the Qwt. I will create a simple separate example today without any extra dependencies. [/quote]

alright, i will be awaiting for the new revision. Thanks man! ^^