Or use opencv Of cmakefile Compile ： The specific content ： Use pkg-config -cflags -libs opencv Find what you need to compile opencv Link library, modify objects.mk and subdir.mk file, then make that will do 3. c -L./lib/ -lavcodec -lavdevice -lavfilter -lavformat -lavutilĬompile using the ffmpeg extract motion vector 1. Use ffmpeg compile c file ： gcc -o Executable file name The name of the file to be compiled. Get into /usr/local/ffmpeg/bin Next, Input. configure -enable-pic & make[ The default compilation is installed in /usr/local/ Next 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 Problems in compiling to dynamic library ： configure -enable-shared -prefix=/ Where do you want him to compile /ffmpeg

The third step ： go back to ffmpeg Directory ĭecompression tar -xjvf ffmpeg-3.3.1.tar.bz2

Compile ffmpeg: First step ： From the website Download the latest version.

Compile ffmpeg for windows on ubuntu