[vlc-devel] Set of patches to make VLC Qt4 interface compile and run on Mac

[Juho Vähä-Herttua]

Hi,

I'm soon going to send a set of patches that aim to make the current git 
master to compile on Mac. Currently it only works with Qt4 that is 
compiled with Cocoa, as it passes the WId directly to video_output and 
as http://doc.qt.nokia.com/4.6/qwidget.html#winId says:

"On Mac OS X, the type returned depends on which framework Qt was linked 
against. If Qt is using Carbon, the {WId} is actually an HIViewRef. If 
Qt is using Cocoa, {WId} is a pointer to an NSView."

It can be made to work on Carbon compiled Qt as well with 
QMacCocoaViewContainer if running on OSX 10.5 or newer, as explained in 
http://doc.trolltech.com/4.6/qmaccocoaviewcontainer.html, but that 
would've practically required adding some Objective-C++ file that could 
access both Cocoa and Qt4 and I didn't bother at least for now.

When compiling, something like:

export QT4_CFLAGS="-DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED 
-I/usr/local/Qt4.6/mkspecs/macx-g++ -I. 
-I/Library/Frameworks/QtCore.framework/Versions/4/Headers 
-I/usr/include/QtCore 
-I/Library/Frameworks/QtGui.framework/Versions/4/Headers 
-I/usr/include/QtGui -I/usr/include -F/Library/Frameworks"
export QT4_LIBS="-F/Library/Frameworks -L/Library/Frameworks -framework 
QtGui -framework QtCore"

should be exported on the command line before configure for it to work 
with the Qt4 binaries downloadable from qt.nokia.com. Personally I used 
the prerelease binaries at 
http://qt.nokia.com/developer/qt-qtcreator-prerelease for testing.

It crashes a lot, but at least I can hear the sound and watch the video, 
so I'd call it a good starting point.


Juho