Video Analysis(1)：安装Ubuntu-ffmpeg-opencv

ubuntu

step1:依赖项
安装FFmpeg的依赖项：yasm，libx264(依赖yasm)，libfaac，libmp3lame，libtheora，libvorbis，libxvid，libxext，libxfixes．命令如下：

apt-get install yasmaptitude install libx264-devsudo aptitude install libfaac-dev libmp3lame-dev libtheora-dev libvorbis-dev libxvidcore-dev  libxext-dev libxfixes-dev

step2:下载ffmpeg编译配置

cd ~/ffmpeg_sourceswget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2tar xjvf ffmpeg-snapshot.tar.bz2cd ffmpeg# （后面的–enable-nonfree –enable-pic –enable-shared很重要） PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure --prefix="$HOME/ffmpeg_build" --pkg-config-flags="--static" --extra-cflags="-I$HOME/ffmpeg_build/include" --extra-ldflags="-L$HOME/ffmpeg_build/lib" --bindir="$HOME/bin" --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-sharedPATH="$HOME/bin:$PATH" makemake installmake distcleanhash -rffmpeg -version 

step3:安装Opencv

cd ~/OpenCV wget -c http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/3.1.0/opencv-3.1.0.zip unzip opencv-3.1.0.zip cd opencv-3.1.0 cmake -D CMAKE_BUILD_TYPE=RELEASE       -D INSTALL_C_EXAMPLES=OFF       -D INSTALL_PYTHON_EXAMPLES=ON       -D CMAKE_INSTALL_PREFIX=/usr/local       -D PYTHON_INCLUDE_DIR=/home/python/anaconda2/include/python2.7/        -D PYTHON_INCLUDE_DIR2=/home/python/anaconda2/include/python2.7       -D PYTHON_LIBRARY=/home/python/anaconda2/lib/libpython2.7.so       -D PYTHON_PACKAGES_PATH=/home/python/anaconda2/lib/python2.7/site-packages/       -D BUILD_EXAMPLES=ON       -D BUILD_NEW_PYTHON_SUPPORT=ON        -D PYTHON2_LIBRARY=/home/python/anaconda2/lib/libpython2.7.so       -D BUILD_opencv_python3=OFF       -D BUILD_opencv_python2=ON /home/python/OpenCV/opencv-3.1.0make sudo make installsudo ldconfigcd /home/python/anaconda2/lib/python2.7/site-packages/ln -s /usr/local/lib/python2.7/site-packages/cv2.so cv2.so

注意：cmake后面的参数要按实际情况，具体看CMakeLists.txt

step4:测试安装

source activate py2python -c "import cv2;print(cv2.__version__)"python -c "import cv2;cap=cv2.VideoCapture(0);print(cap.isOpened())"

windows

电脑上ffmpeg跟python没关系【下载ffmpeng】
F:\ffmpeg\bin，并加入环境变量。
opencv安装到python虚拟环境中
第一步：将opencv安装目录下D:\ruanjian\opencv\build\python\2.7\x64的cv2.pyd复制到Anaconda安装目录D:\Anaconda\Lib\site-packages下。
第二步：将D:\ruanjian\opencv\build\x64\vc12\bin下的opencv_ffmpeg_64.dll和opencv_ffmpeg.dll复制到D:\Anaconda下，并改名为opencv_ffmpeg310_64.dll，其中310指代的是opencv的版本号
进入虚拟环境
conda install -c https://conda.anaconda.org/menpo opencv3==3.1.0
验证

python -c "import cv2;cap=cv2.VideoCapture(0);print(cap.isOpened())"python -c "import cv2;print(cv2.__version__)"python -c "import cv2;cap=cv2.VideoCapture('C:\\Users\\<username>\\Desktop\\ava_extraction_script\\videos\\NEQ7Wpf-EtI.avi');print(cap.isOpened())"  # windows