J'ai des problèmes pour installer OpenCV 2.0 sur Ubuntu 14.04. Lorsque je veux installer les dépendances, j'ai le problème suivant :
andres@andres-VirtualBox:~$ sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg62-dev libtiff4-dev cmake libswscale-dev libjasper-dev
[sudo] password for andres:
Reading package lists...
Done Building dependency tree Reading state information...
Done Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created or been
moved out of Incoming. The following information may help to resolve the
situation:
The following packages have unmet dependencies:
libtiff4-dev : Depends: libtiff5-dev (> 4.0.3-6~) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.Je veux installer OpenCV 2.0 parce qu'il y a un vieux projet qui utilise cette version d'OpenCV.
Mise à jour 1
1 : J'ai installé libtiff5-dev mais il y a eu une autre erreur :
The following packages have unmet dependencies:
libjpeg-turbo8-dev : Conflicts: libjpeg62-dev but 6b1-4ubuntu1 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.J'ai ensuite supprimé libjpeg-turbo8-dev mais cela a désinstallé libtiff5-dev. Quelqu'un a posté ce problème il y a environ 4 ans sans trouver de solution :
http://ubuntuforums.org/showthread.php?t=1985957
Mise à jour 2
J'ai utilisé aptitude au lieu d'apt-get pour installer les dépendances. Tout s'est bien passé mais j'ai vérifié que j'avais bien ffmpeg et v4l comme no. Je n'ai pas fait attention et j'ai essayé de compiler la bibliothèque. J'ai obtenu les erreurs de compilation suivantes :
In file included from ../include/opencv/cxcore.h:2123:0,
from cxcore/_cxcore.h:60,
from cxcore/cxprecomp.cpp:43:
../include/opencv/cxcore.hpp:169:13: error: ‘ptrdiff_t’ does not name a type
typedef ptrdiff_t difference_type;
^
In file included from ../include/opencv/cxcore.hpp:2243:0,
from ../include/opencv/cxcore.h:2123,
from cxcore/_cxcore.h:60,
from cxcore/cxprecomp.cpp:43:
../include/opencv/cxoperations.hpp:1916:15: error: ‘ptrdiff_t’ does not name a type
static inline ptrdiff_t operator - (const FileNodeIterator& it1, const FileNodeIterator& it2)
^
../include/opencv/cxoperations.hpp:2465:31: error: ‘ptrdiff_t’ does not name a type
template<typename _Tp> inline ptrdiff_t operator - (const SeqIterator<_Tp>& a,
^
In file included from ../include/opencv/cxcore.hpp:2244:0,
from ../include/opencv/cxcore.h:2123,
from cxcore/_cxcore.h:60,
from cxcore/cxprecomp.cpp:43:
../include/opencv/cxmat.hpp: In member function ‘void cv::Mat::locateROI(cv::Size&, cv::Point&) const’:
../include/opencv/cxmat.hpp:356:5: error: ‘ptrdiff_t’ was not declared in this scope
ptrdiff_t delta1 = data - datastart, delta2 = dataend - datastart;
^
../include/opencv/cxmat.hpp:356:5: note: suggested alternatives:
In file included from /usr/include/c++/4.8/utility:68:0,
from /usr/include/c++/4.8/algorithm:60,
from ../include/opencv/cxcore.hpp:51,
from ../include/opencv/cxcore.h:2123,
from cxcore/_cxcore.h:60,
from cxcore/cxprecomp.cpp:43:
/usr/include/x86_64-linux-gnu/c++/4.8/bits/c++config.h:187:28: note: ‘std::ptrdiff_t’
typedef __PTRDIFF_TYPE__ ptrdiff_t;
^
/usr/include/x86_64-linux-gnu/c++/4.8/bits/c++config.h:187:28: note: ‘std::ptrdiff_t’
In file included from ../include/opencv/cxcore.hpp:2244:0,
from ../include/opencv/cxcore.h:2123,
from cxcore/_cxcore.h:60,
from cxcore/cxprecomp.cpp:43:
../include/opencv/cxmat.hpp:356:15: error: expected ‘;’ before ‘delta1’
ptrdiff_t delta1 = data - datastart, delta2 = dataend - datastart;
^
../include/opencv/cxmat.hpp:358:9: error: ‘delta1’ was not declared in this scope
if( delta1 == 0 )
^
../include/opencv/cxmat.hpp:367:31: error: ‘delta2’ was not declared in this scope
wholeSize.height = (int)((delta2 - minstep)/step + 1);
^
make[2]: *** [cxprecomp.lo] Error 1
make[2]: Leaving directory `/home/andres/OpenCV-2.0.0/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/andres/OpenCV-2.0.0'
make: *** [all] Error 2
