Replace paths with where you like, but make sure you change also in my guide!
#go to opt folder, make directories, make directories if not exits
$cd /opt/dev-tools-sources
$mkdir ffmpeg
$cd ffmpeg
#make build and bin directories
$mkdir build
$mkdir bin
#clone the repo
$git clone https://github.com/FFmpeg/FFmpeg.git source
#go to the source dir
$cd source
#install required packages
$sudo apt-get -y install autoconf automake build-essential libass-dev libfreetype6-dev \
libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-shm0-dev \
libxcb-xfixes0-dev pkg-config texinfo zlib1g-dev
#install yasm compilre
$sudo apt install yasm
#instal h264 lib
$sudo apt install libx264-dev
#configure
$./configure –prefix=”/opt/dev-tools-sources/ffmpeg/build” –bindir=”/opt/dev-tools-sources/ffmpeg/bin” –enable-gpl –enable-libx264 –enable-static –enable-shared
#make
$make -j4
#install
$sudo make install
#do not forget to add “/opt/dev-tools-sources/ffmpeg/bin” to you environment. eg in /home/usr/.profile
#you may face problem with ffmpeg binary can not find libavdevice.so.XX where XX is a number e.g. 57
#to fix this, first find out where it has been compiled in the make step:
$sudo find / -name libavdevice.so.57
#the output of the find should look like something like this:
/opt/dev-tools-sources/ffmpeg/build/lib/libavdevice.so.57
/opt/dev-tools-sources/ffmpeg/source/libavdevice/libavdevice.so.57
#now that you have found where the libavdevice is, you have to make it available to system by ldconfig
#to do so, go to /etc/ld.so.conf.d folder
$cd /etc/ld.so.conf.d
#now make a new config file
$sudo nano ffmpeg.conf
#add the following content to the file (replace where actually you libavdevice.so.XX is!!!!)
/etc/ld.so.conf.d
#save and exit the nano editor
#now update the ldconfig by just calling it
$sudo ldconfig
#If you need to use header files provide by ffmpeg for other stuff, like opencv, you can find them here:
/opt/dev-tools-sources/ffmpeg/build/include
#ENJOY!
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