Script to compile FFMPEG on Raspberry Pi for OMX acceleration

piffmpegcompiler.sh

#!/bin/bash

echo "Compiling FFMPEG.........."
echo ""
sudo apt-get -y install autoconf automake build-essential cmake doxygen git graphviz imagemagick libasound2-dev libass-dev libavcodec-dev libavdevice-dev libavfilter-dev libavformat-dev libavutil-dev libfreetype6-dev libgmp-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libopus-dev librtmp-dev libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-net-dev libsdl2-ttf-dev libsnappy-dev libsoxr-dev libssh-dev libssl-dev libtool libv4l-dev libva-dev libvdpau-dev libvo-amrwbenc-dev libvorbis-dev libwebp-dev libx264-dev libx265-dev libxcb-shape0-dev libxcb-shm0-dev libxcb-xfixes0-dev libxcb1-dev libxml2-dev lzma-dev meson nasm pkg-config python3-dev python3-pip texinfo wget yasm zlib1g-dev libgmp3-dev libgmp-dev libdrm-dev
cd /home/pi/

if [ ! -d ffmpeg/ffmpeg-libraries ]
then
  mkdir -p ~/ffmpeg/ffmpeg-libraries
fi 

if [ ! -d ffmpeg/ffmpeg-libraries/fdk-aac ]
then
  git clone --depth 1 https://github.com/mstorsjo/fdk-aac.git ~/ffmpeg/ffmpeg-libraries/fdk-aac
fi
cd ~/ffmpeg/ffmpeg-libraries/fdk-aac \
    && autoreconf -fiv \
    && ./configure \
    && make -j$(nproc) \
    && sudo make install
    
if [ ! -d ffmpeg/ffmpeg-libraries/dav1d ]
then
  git clone --depth 1 https://code.videolan.org/videolan/dav1d.git ~/ffmpeg/ffmpeg-libraries/dav1d
  mkdir ~/ffmpeg/ffmpeg-libraries/dav1d/build 
fi
cd ~/ffmpeg/ffmpeg-libraries/dav1d/build \
    && meson .. \
    && ninja \
    && sudo ninja install

if [ ! -d ffmpeg/ffmpeg-libraries/kvazaar ]
then
  git clone --depth 1 https://github.com/ultravideo/kvazaar.git ~/ffmpeg/ffmpeg-libraries/kvazaar
fi
cd ~/ffmpeg/ffmpeg-libraries/kvazaar \
    && ./autogen.sh \
    && ./configure \
    && make -j$(nproc) \
    && sudo make install

if [ ! -d ffmpeg/ffmpeg-libraries/libvpx ]
then
  git clone --depth 1 https://chromium.googlesource.com/webm/libvpx ~/ffmpeg/ffmpeg-libraries/libvpx
fi
cd ~/ffmpeg/ffmpeg-libraries/libvpx \
    && ./configure --disable-examples --disable-tools --disable-unit_tests --disable-docs \
    && make -j$(nproc) \
    && sudo make install

if [ ! -d ffmpeg/ffmpeg-libraries/aom ]
then
  git clone --depth 1 https://aomedia.googlesource.com/aom ~/ffmpeg/ffmpeg-libraries/aom 
  mkdir ~/ffmpeg/ffmpeg-libraries/aom/aom_build 
fi
cd ~/ffmpeg/ffmpeg-libraries/aom/aom_build \
    && cmake -G "Unix Makefiles" AOM_SRC -DENABLE_NASM=on -DPYTHON_EXECUTABLE="$(which python3)" -DCMAKE_C_FLAGS="-mfpu=vfp -mfloat-abi=hard" .. \
    && sed -i 's/ENABLE_NEON:BOOL=ON/ENABLE_NEON:BOOL=OFF/' CMakeCache.txt \
    && make -j$(nproc) \
    && sudo make install

if [ ! -d ffmpeg/ffmpeg-libraries/zimg ]
then
  git clone https://github.com/sekrit-twc/zimg.git ~/ffmpeg/ffmpeg-libraries/zimg
fi

cd ~/ffmpeg/ffmpeg-libraries/zimg \
    && sh autogen.sh \
    && ./configure \
    && make \
    && sudo make install \
    && sudo make install
    
sudo ldconfig

if [ ! -d ffmpeg/ffmpeg-libraries/FFmpeg ]
then
  wget -P ~/ffmpeg/ffmpeg-libraries/ https://github.com/FFmpeg/FFmpeg/archive/n4.3.tar.gz 
  tar -xf ~/ffmpeg/ffmpeg-libraries/n4.3.tar.gz -C ~/ffmpeg/ffmpeg-libraries/
  mv ~/ffmpeg/ffmpeg-libraries/FFmpeg-n4.3/ ~/ffmpeg/ffmpeg-libraries/FFmpeg/
  sudo rm /home/pi/ffmpeg/ffmpeg-libraries/n4.3.tar.gz
fi
cd ~/ffmpeg/ffmpeg-libraries/FFmpeg \
&& ./configure \
    --extra-cflags="-I/usr/local/include" \
    --extra-ldflags="-L/usr/local/lib" \
    --extra-libs="-lpthread -lm" \
    --arch=armel \
    --enable-gmp \
    --enable-gpl \
    --enable-libaom \
    --enable-libass \
    --enable-libdav1d \
    --enable-libdrm \
    --enable-libfdk-aac \
    --enable-libfreetype \
    --enable-libkvazaar \
    --enable-libmp3lame \
    --enable-libopencore-amrnb \
    --enable-libopencore-amrwb \
    --enable-libopus \
    --enable-librtmp \
    --enable-libsnappy \
    --enable-libsoxr \
    --enable-libssh \
    --enable-libvorbis \
    --enable-libvpx \
    --enable-libzimg \
    --enable-libwebp \
    --enable-libx264 \
    --enable-libx265 \
    --enable-libxml2 \
    --enable-mmal \
    --enable-nonfree \
    --enable-omx \
    --enable-omx-rpi \
    --enable-version3 \
    --target-os=linux \
    --enable-pthreads \
    --enable-openssl \
    --enable-hardcoded-tables \
  && make -j$(nproc) \
  && sudo make install