commit 6b9cdf0b173242091ee3198bc964c32d1acde7b1
Author: David Sorber <david.sorber@gmail.com>
Date:   Thu Jan 20 18:15:52 2022 -0500

    Adding new script to build ffmpeg and dependencies. Apparently I spent a
    good while working on this locally but never committed it.

diff --git a/software/misc/build_ffmpeg_shared.sh b/software/misc/build_ffmpeg_shared.sh
new file mode 100755
index 0000000..4366d0e
--- /dev/null
+++ b/software/misc/build_ffmpeg_shared.sh
@@ -0,0 +1,260 @@
+#!/bin/bash
+#
+###############################################################################
+# FFmpeg Build Script                                                         #
+#                                                                             #
+# This script is based on instructions here:                                  #
+#   https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu                      #
+#                                                                             #
+# NOTE: The script is designed to build shared libraries instead of static    #
+#       ones as the original instructions did.                                #
+#                                                                             #
+###############################################################################
+
+# Helper function to pause between each step
+function pause {
+  echo "Press any key to continue"
+  read -n 1
+  echo
+  echo
+}
+
+# Setup directories - modify as needed
+#~ SOURCES_DIR="/home/dsorber/Downloads/ffmpeg/sources"
+#~ BUILD_DIR="/home/dsorber/Downloads/ffmpeg/build"
+#~ BIN_DIR="/home/dsorber/Downloads/ffmpeg/bin"
+DATESTAMP=$(date +%Y%m%d-%H%M%S)
+SOURCES_DIR="/tmp/ffmpeg-${DATESTAMP}/"
+INSTALL_DIR="/opt/local"
+BIN_DIR="$INSTALL_DIR/bin"
+LIB_DIR="$INSTALL_DIR/lib"
+
+# Set to a string containing the version you wish to install
+FFMPEG_VERSION="5.0" # <--- set this to latest version
+
+NUM_CORES=$(cat /proc/cpuinfo | awk '/^processor/{print $3}' | wc -l)
+
+if [[ $EUID -ne 0 ]]; then
+   echo -e "ERROR: This script must be run as root\n"
+   exit 1
+fi
+
+echo -e "Sources directory: ${SOURCES_DIR}"
+echo -e "Install directory: ${INSTALL_DIR}\n\n"
+
+# Determine which OS we are running on 
+DISTRIB_ID="$(lsb_release -is)"
+
+# CLEAN: rm -rf bin/ build sources/
+
+echo "Installing prereqs..."
+sudo apt -y install \
+  autoconf \
+  automake \
+  build-essential \
+  cmake \
+  git-core \
+  libass-dev \
+  libfreetype6-dev \
+  libgnutls28-dev \
+  libnuma-dev \
+  libsdl2-dev \
+  libtool \
+  libunistring-dev \
+  libva-dev \
+  libvdpau-dev \
+  libvorbis-dev \
+  libxcb1-dev \
+  libxcb-shm0-dev \
+  libxcb-xfixes0-dev \
+  meson \
+  ninja-build \
+  pkg-config \
+  texinfo \
+  wget \
+  yasm \
+  zlib1g-dev
+
+# Make the necessary directories
+mkdir -p $SOURCES_DIR $INSTALL_DIR $BIN_DIR
+  
+echo
+echo
+
+echo "Building NASM"
+cd $SOURCES_DIR && \
+wget https://www.nasm.us/pub/nasm/releasebuilds/2.15.05/nasm-2.15.05.tar.bz2 && \
+tar xjvf nasm-2.15.05.tar.bz2 && \
+cd nasm-2.15.05 && \
+./autogen.sh && \
+PATH="$BIN_DIR:$PATH" ./configure --prefix="$INSTALL_DIR" --bindir="$BIN_DIR" --libdir="$LIB_DIR" && \
+make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+#~ echo "Building Yasm"
+#~ cd $SOURCES_DIR && \
+#~ wget -O yasm-1.3.0.tar.gz https://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz && \
+#~ tar xzvf yasm-1.3.0.tar.gz && \
+#~ cd yasm-1.3.0 && \
+#~ ./configure --prefix="$INSTALL_DIR" --bindir="$BIN_DIR" && \
+#~ make -j$NUM_CORES && \
+#~ make install
+#~ echo
+#~ echo
+#~ read -n 1
+
+echo "Building libx264"
+cd $SOURCES_DIR && \
+git -C x264 pull 2> /dev/null || git clone --depth 1 https://code.videolan.org/videolan/x264.git/ && \
+cd x264 && \
+PATH="$BIN_DIR:$PATH" PKG_CONFIG_PATH="$INSTALL_DIR/lib/pkgconfig" ./configure --prefix="$INSTALL_DIR" \
+--bindir="$BIN_DIR" --enable-shared --enable-pic \
+--extra-ldflags="-Wl,-rpath=$LIB_DIR,--enable-new-dtags" && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Buildxing libx265"
+cd $SOURCES_DIR && \
+wget -O x265.tar.bz2 https://bitbucket.org/multicoreware/x265_git/get/master.tar.bz2 && \
+tar xjvf x265.tar.bz2 && \
+cd multicoreware*/build/linux && \
+PATH="$BIN_DIR:$PATH" cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$INSTALL_DIR" -DLIB_INSTALL_DIR="$LIB_DIR_NAME" \
+-DCMAKE_EXE_LINKER_FLAGS="-Wl,-rpath=$LIB_DIR,--enable-new-dtags" ../../source && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install
+# NOTE: There does not appear to be a way to disable building of static lib;
+#       instead we remove it after the fact
+rm $LIB_DIR/libx265.a
+echo
+echo
+pause
+
+echo "Building libvpx"
+cd $SOURCES_DIR && \
+git -C libvpx pull 2> /dev/null || git clone --depth 1 https://chromium.googlesource.com/webm/libvpx.git && \
+cd libvpx && \
+PATH="$BIN_DIR:$PATH" ./configure --prefix="$INSTALL_DIR" --libdir="$LIB_DIR" --disable-examples \
+--disable-unit-tests --enable-vp9-highbitdepth --as=yasm --enable-shared --disable-static && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Building libfdk-aac"
+cd $SOURCES_DIR && \
+git -C fdk-aac pull 2> /dev/null || git clone --depth 1 https://github.com/mstorsjo/fdk-aac && \
+cd fdk-aac && \
+autoreconf -fiv && \
+./configure --prefix="$INSTALL_DIR" --libdir="$LIB_DIR" --disable-static && \
+make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Building libmp3lame"
+cd $SOURCES_DIR && \
+wget -O lame-3.100.tar.gz https://downloads.sourceforge.net/project/lame/lame/3.100/lame-3.100.tar.gz && \
+tar xzvf lame-3.100.tar.gz && \
+cd lame-3.100 && \
+PATH="$BIN_DIR:$PATH" ./configure --prefix="$INSTALL_DIR" --libdir="$LIB_DIR" --bindir="$BIN_DIR" --disable-static --enable-nasm && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Building libopus"
+cd $SOURCES_DIR && \
+git -C opus pull 2> /dev/null || git clone --depth 1 https://github.com/xiph/opus.git && \
+cd opus && \
+./autogen.sh && \
+./configure --prefix="$INSTALL_DIR" --libdir="$LIB_DIR" --disable-static && \
+make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Building libaom"
+cd $SOURCES_DIR && \
+git -C aom pull 2> /dev/null || git clone --depth 1 https://aomedia.googlesource.com/aom && \
+mkdir aom_build && \
+cd aom_build && \
+PATH="$BIN_DIR:$PATH" cmake -G "Unix Makefiles"  -DCMAKE_INSTALL_PREFIX="$INSTALL_DIR" \
+-DCMAKE_EXE_LINKER_FLAGS="-Wl,-rpath=$LIB_DIR,--enable-new-dtags" \
+-DBUILD_SHARED_LIBS=1 -DENABLE_NASM=on ../aom && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Building libsvtav1"
+cd $SOURCES_DIR && \
+git -C SVT-AV1 pull 2> /dev/null || git clone https://gitlab.com/AOMediaCodec/SVT-AV1.git && \
+mkdir -p SVT-AV1/build && \
+cd SVT-AV1/build && \
+PATH="$BIN_DIR:$PATH" cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$INSTALL_DIR" -DCMAKE_BUILD_TYPE=Release \
+-DCMAKE_EXE_LINKER_FLAGS="-Wl,-rpath=$LIB_DIR,--enable-new-dtags" \
+-DBUILD_DEC=OFF -DBUILD_SHARED_LIBS=1 .. && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install
+echo
+echo
+pause
+
+echo "Building libdav1d"
+cd $SOURCES_DIR && \
+git -C dav1d pull 2> /dev/null || git clone --depth 1 https://code.videolan.org/videolan/dav1d.git && \
+mkdir -p dav1d/build && \
+cd dav1d/build && \
+meson setup -Denable_tools=false -Denable_tests=false --default-library=shared --prefix="$INSTALL_DIR" \
+--libdir="$LIB_DIR" --bindir="$BIN_DIR" .. && \
+ninja && sudo ninja install
+echo
+echo
+pause
+
+echo "Building libvmaf"
+cd $SOURCES_DIR && \
+wget https://github.com/Netflix/vmaf/archive/v2.1.1.tar.gz && \
+tar xvf v2.1.1.tar.gz && \
+mkdir -p vmaf-2.1.1/libvmaf/build &&\
+cd vmaf-2.1.1/libvmaf/build && \
+meson setup -Denable_tests=false -Denable_docs=false --buildtype=release --default-library=shared \
+--prefix="$INSTALL_DIR" --libdir="$LIB_DIR" --bindir="$BIN_DIR" .. && \
+ninja && sudo ninja install
+echo
+echo
+pause
+
+echo "Building ffmpeg"
+cd $SOURCES_DIR && \
+wget -O ffmpeg-$FFMPEG_VERSION.tar.bz2 https://ffmpeg.org/releases/ffmpeg-$FFMPEG_VERSION.tar.bz2 && \
+tar xjvf ffmpeg-$FFMPEG_VERSION.tar.bz2 && \
+cd ffmpeg-$FFMPEG_VERSION && \
+PATH="$BIN_DIR:$PATH" PKG_CONFIG_PATH="$INSTALL_DIR/lib/pkgconfig:$INSTALL_DIR/lib64/pkgconfig" ./configure \
+  --enable-shared \
+  --disable-static \
+  --prefix="$INSTALL_DIR" \
+  --libdir="$LIB_DIR" \
+  --extra-cflags="-I$INSTALL_DIR/include" \
+  --extra-ldflags="-L$LIB_DIR -Wl,-rpath=$LIB_DIR,--enable-new-dtags" \
+  --extra-libs="-lpthread -lm" \
+  --ld="g++" \
+  --enable-gpl \
+  --enable-gnutls \
+  --enable-libaom \
+  --enable-libass \
+  --enable-libfdk-aac \
+  --enable-libfreetype \
+  --enable-libmp3lame \
+  --enable-libopus \
+  --enable-libsvtav1 \
+  --enable-libdav1d \
+  --enable-libvorbis \
+  --enable-libvpx \
+  --enable-libx264 \
+  --enable-libx265 \
+  --enable-nonfree && \
+PATH="$BIN_DIR:$PATH" make -j$NUM_CORES && sudo make install && \
+hash -r