ubuntu14.04 配置opencv249种种问题记录

首先如果你的运气足够好,你完全可以按照 :
http://blog.csdn.net/codeforces_sphinx/article/details/8246546
或者opencv中文论坛上的linux下opencv的安装方法

但是我的运气不好,上述两种方法安装不了,参考这个:点击打开链接

我把过程分析如下.

由于opencv的cmakelist里依赖一些库,所有要先配置好这些库,我主要是被ffmpeg和x264 玩死了快: 保险起见,先去除你电脑上的这些重新装.

sudo apt-get remove ffmpeg x264 libx264-dev

安装其他依赖库.

sudo apt-get update

sudo apt-get install build-essential checkinstall git cmake libfaac-dev libjack-jackd2-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libsdl1.2-dev libtheora-dev libva-dev libvdpau-dev libvorbis-dev libx11-dev libxfixes-dev libxvidcore-dev texi2html
yasm zlib1g-dev

安装gstreamer,主要是opencv里头的相机模块用到

sudo apt-get install libgstreamer0.10-0 libgstreamer0.10-dev gstreamer0.10-tools gstreamer0.10-plugins-base libgstreamer-plugins-base0.10-dev gstreamer0.10-plugins-good gstreamer0.10-plugins-ugly gstreamer0.10-plugins-bad gstreamer0.10-ffmpeg

安装,接着安装

sudo apt-get install libgtk2.0-0 libgtk2.0-dev

sudo apt-get install libjpeg8 libjpeg8-dev

安装 install x264.

Download a recent stable snapshot of x264 from ftp://ftp.videolan.org/pub/videolan/x264/snapshots/. The exact version does not seem to matter. To write this guide, I used version x264-snapshot-20120528-2245-stable.tar.bz2, but I have used previous versions too.

cd ~/src

wget ftp://ftp.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20120528-2245-stable.tar.bz2
tar xvf x264-snapshot-20120528-2245-stable.tar.bz2

cd x264-snapshot-20120528-2245-stable

./configure
--enable-shared --enable-pic


make

sudo make install

PS:由于我的电脑是64,所以要加上

--enable-shared --enable-pic
 ,否则就会报错:

[code]/usr/bin/ld: /usr/local/lib/libavcodec.a(avpacket.o): relocation R_X86_64_32S against `av_destruct_packet' can not be used when making a shared object;
recompile with -fPIC

/usr/local/lib/libavcodec.a: could not read symbols: Bad value

安装ffmpeg

Download ffmpeg version 1.2 from http://ffmpeg.org/download.html.PS:装ffmpeg-0.11.1编译不通过,报错: /usr/local/lib/libswscale.a(swscale_unscaled.o): relocation R_X86_64_32S against `av_pix_fmt_descriptors@@LIBAVUTIL_52' can not be used when making a shared object; recompile with -fPIC

/usr/local/lib/libswscale.a: error adding symbols: 错误的值

collect2: error: ld returned 1 exit status

make[2]: *** [lib/libopencv_highgui.so.2.4.9] 错误 1

make[1]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/all] 错误 2

make: *** [all] 错误 2

猜可能是opencv249依赖的ffmpeg版本不对照

cd ~/src

wget http://ffmpeg.org/releases/ffmpeg-1.2.tar.bz2 
tar xvf ffmpeg-1.2.tar.bz2

cd ffmpeg-1.2

./configure --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab
--enable-shared --enable-pic

make

sudo make install

安装v4l (video for linux) from http://www.linuxtv.org/downloads/v4l-utils/.

报错:dvb-v5.h:69:9: error: ‘NULL’ undeclared here ........

原因是v4l的版本不对,于是我装了v4l 1.0.0

wget http://www.linuxtv.org/downloads/v4l-utils/v4l-utils-1.0.0.tar.bz2

tar xvf v4l-utils-1.0.0.tar.bz2

cd v4l-utils1.0.0

make

sudo make install

安装OpenCV 2.4.9.

Download OpenCV version 2.4.2 from http://sourceforge.net/projects/opencvlibrary/files/

cd ~/src

wget http://downloads.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.9/OpenCV-2.4.9.tar.bz2

tar xvf OpenCV-2.4.9.tar.bz2

Create a new build directory and run cmake:

cd OpenCV-2.4.9/

mkdir build

cd build

cmake -D CMAKE_BUILD_TYPE=RELEASE ..

Verify that the output of cmake includes the following text:

found gstreamer-base-0.10
GTK+ 2.x: YES
FFMPEG: YES
GStreamer: YES
V4L/V4L2: Using libv4l

Build and install OpenCV.

make

sudo make install

Configure Linux.

Tell linux where the shared libraries for OpenCV are located by entering the following shell command:

export LD_LIBRARY_PATH=/usr/local/lib

Add the command to your .bashrc file so that you don’t have to enter every time your start a new terminal.

Alternatively, you can configure the system wide library search path. Using your favorite editor, add a single line containing the text

/usr/local/lib

to the end of a file named

/etc/ld.so.conf.d/opencv.conf

. In the standard Ubuntu install, the opencv.conf file does not exist; you need to create it. Using vi, for example, enter the following commands:

sudo vi /etc/ld.so.conf.d/opencv.conf

G

o

/usr/local/lib

<Esc>

:wq!

After editing the opencv.conf file, enter the following command:

sudo ldconfig /etc/ld.so.conf

.

Using your favorite editor, add the following two lines to the end of /etc/bash.bashrc:

PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

export PKG_CONFIG_PATH

就这样吧.....最好按照步骤来,先装好依赖库再搞别的