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#!/usr/bin/env bash
# Copyright (C) 2024 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
# This script builds and installs FFmpeg shared libs
source "${BASH_SOURCE%/*}/../unix/ffmpeg-installation-utils.sh"
default_prefix="$(ffmpeg_default_install_prefix_base)/macos"
usage() {
cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") --os <os> [--output <dir>] [--skip-env-var]
Build FFmpeg shared libraries for macOS.
Options:
--os <os> Target. One of: macos, macos-universal.
macos builds for the host architecture only,
macos-universal builds arm64 and x86_64 and lipos them together.
--output <dir> Directory to install FFmpeg into.
Defaults to $default_prefix.
--skip-env-var Don't set the FFMPEG_DIR environment variable to the
installation directory.
-h, --help Show this help and exit.
Example:
$(basename "${BASH_SOURCE[0]}") --os macos-universal --output ~/my/ffmpeg/macos
EOF
}
os=""
prefix="$default_prefix"
skip_env_var="no"
while [ $# -gt 0 ]; do
case "$1" in
-h|--help)
usage
exit 0
;;
--skip-env-var)
skip_env_var="yes"
;;
--os|--output)
if [ $# -lt 2 ]; then
echo "Error: option '$1' requires a value." >&2
exit 2
fi
case "$1" in
--os) os="$2" ;;
--output) prefix="$2" ;;
esac
shift
;;
*)
echo "Error: unknown argument '$1'." >&2
echo "" >&2
usage >&2
exit 2
;;
esac
shift
done
set -euxo pipefail
if [ "$os" != "macos" ] && [ "$os" != "macos-universal" ]; then
echo "Error: --os must be 'macos' or 'macos-universal'. Got: '$os'" >&2
exit 1
fi
ffmpeg_source_dir=$(download_ffmpeg)
ffmpeg_config_options=$(get_ffmpeg_config_options "shared")
# Disable X11 linkage on macOS. FFmpeg auto-detect
# mechanisms will pull it in as a dependency if found
# on the host. If this happens, it makes the binaries
# not loadable on macOS machines without libx11 installed.
ffmpeg_config_options+=" --disable-libxcb --disable-xlib"
build_ffmpeg() {
local arch="${1:-}"
local build_dir="$ffmpeg_source_dir/build/$arch"
mkdir -p "$build_dir"
pushd "$build_dir"
# shellcheck disable=SC2086
if [ -n "$arch" ]; then
local cc="clang -arch $arch"
"$ffmpeg_source_dir/configure" $ffmpeg_config_options --prefix="$prefix" --enable-cross-compile --arch="$arch" --cc="$cc"
else
"$ffmpeg_source_dir/configure" $ffmpeg_config_options --prefix="$prefix"
fi
# shellcheck disable=
make install DESTDIR="$build_dir/installed" -j4
popd
}
# Install required packages through Brew
required_ffmpeg_packages=()
while IFS= read -r line; do required_ffmpeg_packages+=("$line"); done < "${BASH_SOURCE%/*}/../macos/ffmpeg_required_brew_packages.txt"
brew install "${required_ffmpeg_packages[@]}"
export MACOSX_DEPLOYMENT_TARGET=12
fix_relative_dependencies="${BASH_SOURCE%/*}/../macos/fix_relative_dependencies.sh"
if [ "$os" == "macos" ]; then
build_ffmpeg
install_dir="$ffmpeg_source_dir/build/installed"
"$fix_relative_dependencies" "$install_dir/$prefix/lib"
mkdir -p "$prefix"
mv "$install_dir/$prefix" "$prefix/../"
else
build_ffmpeg "arm64"
build_ffmpeg "x86_64"
arm64_install_dir="$ffmpeg_source_dir/build/arm64/installed"
x86_64_install_dir="$ffmpeg_source_dir/build/x86_64/installed"
"$fix_relative_dependencies" "$arm64_install_dir/$prefix/lib"
"$fix_relative_dependencies" "$x86_64_install_dir/$prefix/lib"
rm -rf "$prefix" # lipo fails upon 2nd run
"${BASH_SOURCE%/*}/../macos/makeuniversal.sh" "$arm64_install_dir" "$x86_64_install_dir"
fi
if [ "$skip_env_var" == "no" ]; then
set_ffmpeg_dir_env_var "FFMPEG_DIR" "$prefix"
fi