Compiler/Lier OpenCV Exemple: camshiftdemo.c

Question

J'ai construit la démo sur mon Ubuntu 10.04 en utilisant les en-têtes trouvés dans ce PPA et avec le script build_all.sh trouvé dans le même répertoire que camshiftdemo.c. Tout ce que j'ai reçu est un message Could not initialize capturing....

Alors j'ai essayé de le construire avec cette ligne (qui se trouve après la construction de la démo avec CMake dans le répertoire de construction qui CMake crée):

gcc -Wall -Wno-long-long -pthread -ffunction-sections -O3 -DNDEBUG -fomit-frame-pointer -O3 -ffast-math -mmmx -msse -msse2 -msse3 -DNDEBUG camshiftdemo.c -o camshiftdemo -rdynamic -ldl -lm -lpthread -lrt /usr/lib/libcv.so.2.1.0 /usr/lib/libcxcore.so.2.1.0 /usr/lib/libhighgui.so.2.1.0 /usr/lib/libml.so.2.1.0 /usr/lib/libcvaux.so.2.1.0 /usr/lib/libhighgui.so.2.1.0 /usr/lib/libcv.so.2.1.0 /usr/lib/libml.so.2.1.0 /usr/lib/libcxcore.so.2.1.0 /usr/lib/libunicap.so.2.1.8 /usr/lib/libgstbase-0.10.so.0.24.1 /usr/lib/libgstreamer-0.10.so.0.24.1 /usr/lib/libxml2.so.2.7.6 -ldl -lm -lpthread -lrt 3rdparty/lib/libopencv_lapack.a 3rdparty/lib/libzlib.a 3rdparty/lib/libflann.a 

Vous devez copier « 3rdparty » dans le répertoire de construction en le répertoire d'exemple.

Notez que j'ai inclus les bibliothèques gstreamer, unicap et libxml2. C'est ce que j'ai trouvé différent whe comparant les deux elfe construit (une avec CMake) avec /lib/ld-linux.so --list

Mise à jour: Voici les dépendances de liaison, à la fois de la CMake canonique construire et de ma propre construction

construire CMake

linux-vdso.so.1 => (0x00007fffdf3ff000) 
libdl.so.2 => /lib/libdl.so.2 (0x00007f1ddda8b000) 
libpthread.so.0 => /lib/libpthread.so.0 (0x00007f1ddd86e000) 
librt.so.1 => /lib/librt.so.1 (0x00007f1ddd665000) 
libcv.so.2.0 => /home/hellhound/projects/local/opencv/build/lib/libcv.so.2.0 (0x00007f1ddd1e6000) 
libcxcore.so.2.0 => /home/hellhound/projects/local/opencv/build/lib/libcxcore.so.2.0 (0x00007f1ddcd3b000) 
libhighgui.so.2.0 => /home/hellhound/projects/local/opencv/build/lib/libhighgui.so.2.0 (0x00007f1ddcafb000) 
libml.so.2.0 => /home/hellhound/projects/local/opencv/build/lib/libml.so.2.0 (0x00007f1ddc890000) 
libcvaux.so.2.0 => /home/hellhound/projects/local/opencv/build/lib/libcvaux.so.2.0 (0x00007f1ddc57c000) 
libm.so.6 => /lib/libm.so.6 (0x00007f1ddc2f8000) 
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f1ddbfe4000) 
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f1ddbdcd000) 
libc.so.6 => /lib/libc.so.6 (0x00007f1ddba49000) 
/lib64/ld-linux-x86-64.so.2 => /lib/ld-linux-x86-64.so.2 (0x00007f1dddcad000) 
libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x00007f1ddb825000) 
libpng12.so.0 => /lib/libpng12.so.0 (0x00007f1ddb5fd000) 
libz.so.1 => /lib/libz.so.1 (0x00007f1ddb3e6000) 
libtiff.so.4 => /usr/lib/libtiff.so.4 (0x00007f1ddb184000) 
libjasper.so.1 => /usr/lib/libjasper.so.1 (0x00007f1ddaf2c000) 
libgtk-x11-2.0.so.0 => /usr/lib/libgtk-x11-2.0.so.0 (0x00007f1dda90a000) 
libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0x00007f1dda65d000) 
libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0x00007f1dda43b000) 
libgio-2.0.so.0 => /usr/lib/libgio-2.0.so.0 (0x00007f1dda188000) 
libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x00007f1dd9f5e000) 
libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0x00007f1dd9d41000) 
libpangocairo-1.0.so.0 => /usr/lib/libpangocairo-1.0.so.0 (0x00007f1dd9b34000) 
libcairo.so.2 => /usr/lib/libcairo.so.2 (0x00007f1dd9876000) 
libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x00007f1dd962b000) 
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00007f1dd93a5000) 
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00007f1dd9170000) 
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x00007f1dd8f27000) 
libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x00007f1dd8d23000) 
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0x00007f1dd8b1e000) 
libglib-2.0.so.0 => /lib/libglib-2.0.so.0 (0x00007f1dd883f000) 
libgstbase-0.10.so.0 => /usr/lib/libgstbase-0.10.so.0 (0x00007f1dd8603000) 
libgstreamer-0.10.so.0 => /usr/lib/libgstreamer-0.10.so.0 (0x00007f1dd832d000) 
libxml2.so.2 => /usr/lib/libxml2.so.2 (0x00007f1dd7fdc000) 
libunicap.so.2 => /usr/lib/libunicap.so.2 (0x00007f1dd7d87000) 
libavcodec.so.52 => /usr/lib/libavcodec.so.52 (0x00007f1dd7327000) 
libavutil.so.49 => /usr/lib/libavutil.so.49 (0x00007f1dd7117000) 
libdc1394.so.22 => /usr/lib/libdc1394.so.22 (0x00007f1dd6ea3000) 
libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f1dd6c90000) 
libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f1dd6a86000) 
libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0x00007f1dd6883000) 
libXi.so.6 => /usr/lib/libXi.so.6 (0x00007f1dd6672000) 
libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0x00007f1dd6469000) 
libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0x00007f1dd625f000) 
libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f1dd5f25000) 
libXcomposite.so.1 => /usr/lib/libXcomposite.so.1 (0x00007f1dd5d22000) 
libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x00007f1dd5b1f000) 
libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x00007f1dd5918000) 
libpcre.so.3 => /lib/libpcre.so.3 (0x00007f1dd56ea000) 
libresolv.so.2 => /lib/libresolv.so.2 (0x00007f1dd54d0000) 
libselinux.so.1 => /lib/libselinux.so.1 (0x00007f1dd52b2000) 
libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0x00007f1dd5045000) 
libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0x00007f1dd4e42000) 
libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f1dd4c39000) 
libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f1dd4a1b000) 
libexpat.so.1 => /lib/libexpat.so.1 (0x00007f1dd47f2000) 
libXv.so.1 => /usr/lib/libXv.so.1 (0x00007f1dd45eb000) 
libdirac_encoder.so.0 => /usr/lib/libdirac_encoder.so.0 (0x00007f1dd4359000) 
libfaac.so.0 => /usr/lib/libfaac.so.0 (0x00007f1dd4147000) 
libfaad.so.2 => /usr/lib/libfaad.so.2 (0x00007f1dd3f05000) 
libgsm.so.1 => /usr/lib/libgsm.so.1 (0x00007f1dd3cf7000) 
libmp3lame.so.0 => /usr/lib/libmp3lame.so.0 (0x00007f1dd3a7f000) 
libopencore-amrnb.so.0 => /usr/lib/libopencore-amrnb.so.0 (0x00007f1dd3844000) 
libopencore-amrwb.so.0 => /usr/lib/libopencore-amrwb.so.0 (0x00007f1dd3628000) 
libopenjpeg.so.2 => /usr/lib/libopenjpeg.so.2 (0x00007f1dd3408000) 
libschroedinger-1.0.so.0 => /usr/lib/libschroedinger-1.0.so.0 (0x00007f1dd3188000) 
libspeex.so.1 => /usr/lib/libspeex.so.1 (0x00007f1dd2f6e000) 
libtheora.so.0 => /usr/lib/libtheora.so.0 (0x00007f1dd2d20000) 
libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0x00007f1dd2944000) 
libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007f1dd2717000) 
libx264.so.85 => /usr/lib/libx264.so.85 (0x00007f1dd2488000) 
libxvidcore.so.4 => /usr/lib/libxvidcore.so.4 (0x00007f1dd2179000) 
libraw1394.so.11 => /usr/lib/libraw1394.so.11 (0x00007f1dd1f6b000) 
libusb-1.0.so.0 => /lib/libusb-1.0.so.0 (0x00007f1dd1d5c000) 
libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f1dd1b58000) 
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f1dd1952000) 
liboil-0.3.so.0 => /usr/lib/liboil-0.3.so.0 (0x00007f1dd16c1000) 
libogg.so.0 => /usr/lib/libogg.so.0 (0x00007f1dd14ba000) 

Mon build

linux-vdso.so.1 => (0x00007fff7c95a000) 
libdl.so.2 => /lib/libdl.so.2 (0x00007f34aad74000) 
libm.so.6 => /lib/libm.so.6 (0x00007f34aaaf1000) 
libpthread.so.0 => /lib/libpthread.so.0 (0x00007f34aa8d3000) 
librt.so.1 => /lib/librt.so.1 (0x00007f34aa6cb000) 
libcv.so.2.1 => /usr/lib/libcv.so.2.1 (0x00007f34aa1c0000) 
libcxcore.so.2.1 => /usr/lib/libcxcore.so.2.1 (0x00007f34a9d11000) 
libhighgui.so.2.1 => /usr/lib/libhighgui.so.2.1 (0x00007f34a9ad5000) 
libml.so.2.1 => /usr/lib/libml.so.2.1 (0x00007f34a986a000) 
libcvaux.so.2.1 => /usr/lib/libcvaux.so.2.1 (0x00007f34a953c000) 
libunicap.so.2 => /usr/lib/libunicap.so.2 (0x00007f34a92e7000) 
libgstbase-0.10.so.0 => /usr/lib/libgstbase-0.10.so.0 (0x00007f34a90ab000) 
libgstreamer-0.10.so.0 => /usr/lib/libgstreamer-0.10.so.0 (0x00007f34a8dd4000) 
libxml2.so.2 => /usr/lib/libxml2.so.2 (0x00007f34a8a84000) 
libc.so.6 => /lib/libc.so.6 (0x00007f34a8701000) 
/lib64/ld-linux-x86-64.so.2 => /lib/ld-linux-x86-64.so.2 (0x00007f34aaf96000) 
libtbb.so.2 => /usr/lib/libtbb.so.2 (0x00007f34a84da000) 
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f34a81c6000) 
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f34a7faf000) 
libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x00007f34a7d8a000) 
libpng12.so.0 => /lib/libpng12.so.0 (0x00007f34a7b63000) 
libz.so.1 => /lib/libz.so.1 (0x00007f34a794c000) 
libtiff.so.4 => /usr/lib/libtiff.so.4 (0x00007f34a76e9000) 
libjasper.so.1 => /usr/lib/libjasper.so.1 (0x00007f34a7492000) 
libgtk-x11-2.0.so.0 => /usr/lib/libgtk-x11-2.0.so.0 (0x00007f34a6e70000) 
libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0x00007f34a6bc2000) 
libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0x00007f34a69a1000) 
libgio-2.0.so.0 => /usr/lib/libgio-2.0.so.0 (0x00007f34a66ee000) 
libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x00007f34a64c3000) 
libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0x00007f34a62a7000) 
libpangocairo-1.0.so.0 => /usr/lib/libpangocairo-1.0.so.0 (0x00007f34a609a000) 
libcairo.so.2 => /usr/lib/libcairo.so.2 (0x00007f34a5ddb000) 
libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x00007f34a5b91000) 
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00007f34a590b000) 
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00007f34a56d5000) 
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x00007f34a548d000) 
libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x00007f34a5289000) 
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0x00007f34a5083000) 
libglib-2.0.so.0 => /lib/libglib-2.0.so.0 (0x00007f34a4da5000) 
libavcodec.so.52 => /usr/lib/libavcodec.so.52 (0x00007f34a4345000) 
libavformat.so.52 => /usr/lib/libavformat.so.52 (0x00007f34a404e000) 
libavutil.so.49 => /usr/lib/libavutil.so.49 (0x00007f34a3e3f000) 
libswscale.so.0 => /usr/lib/libswscale.so.0 (0x00007f34a3be2000) 
libdc1394.so.22 => /usr/lib/libdc1394.so.22 (0x00007f34a396d000) 
libbz2.so.1.0 => /lib/libbz2.so.1.0 (0x00007f34a375c000) 
libXv.so.1 => /usr/lib/libXv.so.1 (0x00007f34a3555000) 
libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f34a321c000) 
libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f34a3009000) 
libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f34a2dff000) 
libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0x00007f34a2bfc000) 
libXi.so.6 => /usr/lib/libXi.so.6 (0x00007f34a29eb000) 
libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0x00007f34a27e2000) 
libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0x00007f34a25d8000) 
libXcomposite.so.1 => /usr/lib/libXcomposite.so.1 (0x00007f34a23d4000) 
libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x00007f34a21d1000) 
libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x00007f34a1fcb000) 
libpcre.so.3 => /lib/libpcre.so.3 (0x00007f34a1d9c000) 
libresolv.so.2 => /lib/libresolv.so.2 (0x00007f34a1b83000) 
libselinux.so.1 => /lib/libselinux.so.1 (0x00007f34a1964000) 
libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0x00007f34a16f8000) 
libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0x00007f34a14f4000) 
libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f34a12eb000) 
libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f34a10ce000) 
libexpat.so.1 => /lib/libexpat.so.1 (0x00007f34a0ea4000) 
libdirac_encoder.so.0 => /usr/lib/libdirac_encoder.so.0 (0x00007f34a0c12000) 
libfaac.so.0 => /usr/lib/libfaac.so.0 (0x00007f34a09ff000) 
libfaad.so.2 => /usr/lib/libfaad.so.2 (0x00007f34a07be000) 
libgsm.so.1 => /usr/lib/libgsm.so.1 (0x00007f34a05b0000) 
libmp3lame.so.0 => /usr/lib/libmp3lame.so.0 (0x00007f34a0337000) 
libopencore-amrnb.so.0 => /usr/lib/libopencore-amrnb.so.0 (0x00007f34a00fd000) 
libopencore-amrwb.so.0 => /usr/lib/libopencore-amrwb.so.0 (0x00007f349fee1000) 
libopenjpeg.so.2 => /usr/lib/libopenjpeg.so.2 (0x00007f349fcc0000) 
libschroedinger-1.0.so.0 => /usr/lib/libschroedinger-1.0.so.0 (0x00007f349fa41000) 
libspeex.so.1 => /usr/lib/libspeex.so.1 (0x00007f349f827000) 
libtheora.so.0 => /usr/lib/libtheora.so.0 (0x00007f349f5d8000) 
libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0x00007f349f1fd000) 
libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007f349efd0000) 
libx264.so.85 => /usr/lib/libx264.so.85 (0x00007f349ed40000) 
libxvidcore.so.4 => /usr/lib/libxvidcore.so.4 (0x00007f349ea32000) 
libraw1394.so.11 => /usr/lib/libraw1394.so.11 (0x00007f349e823000) 
libusb-1.0.so.0 => /lib/libusb-1.0.so.0 (0x00007f349e615000) 
libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f349e410000) 
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f349e20a000) 
liboil-0.3.so.0 => /usr/lib/liboil-0.3.so.0 (0x00007f349df79000) 
libogg.so.0 => /usr/lib/libogg.so.0 (0x00007f349dd72000) 

Answer 1

Eh bien, je pense que je l'ai eu. La première chose que je faisais de mal était d'utiliser des bibliothèques de versions différentes (OpenCV 2.0 était la vraie cible, pas 2.1). Ensuite, j'ai oublié d'inclure ce -Wl,-rpath,/path/to/opencv/libs lors de la compilation.

Maintenant, il fonctionne comme prévu.