diff options
Diffstat (limited to 'extra/build_ffmpeg.sh')
| -rwxr-xr-x | extra/build_ffmpeg.sh | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/extra/build_ffmpeg.sh b/extra/build_ffmpeg.sh new file mode 100755 index 0000000..06c3344 --- /dev/null +++ b/extra/build_ffmpeg.sh @@ -0,0 +1,233 @@ +#!/bin/sh + +# Builds ffmpeg, or one of the libraries that ffmpeg depends on, from source as a +# static library with lto. Only the components that gpu-screen-recorder uses are enabled. +# This is run by meson when the "ffmpeg_static" option is enabled. + +set -eu + +if [ $# -ne 5 ]; then + echo "usage: $0 <library> <source-dir> <build-dir> <install-prefix> <c-compiler>" >&2 + exit 1 +fi + +library=$1 +source_dir=$2 +build_dir=$3 +prefix=$4 +compiler=$5 +log_file=$build_dir/build.log +stamp_file=$prefix/$library.stamp +jobs=$(nproc 2>/dev/null || echo 4) + +export CC=$compiler +export PKG_CONFIG_PATH=$prefix/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH} + +require_program() { + if ! command -v "$1" >/dev/null 2>&1; then + echo "error: $1 is required to build $library from source" >&2 + exit 1 + fi +} + +require_program pkg-config +require_program make + +case $library in + nv-codec-headers) + set -- PREFIX="$prefix" + build() { + make -C "$source_dir" "$@" install + } + ;; + x264) + require_program nasm + set -- --prefix="$prefix" \ + --enable-static \ + --enable-pic \ + --enable-lto \ + --disable-cli \ + --disable-opencl + build() { + "$source_dir/configure" "$@" + make -j"$jobs" + make install + } + ;; + opus) + set -- --prefix="$prefix" \ + --disable-shared \ + --enable-static \ + --with-pic \ + --disable-doc \ + --disable-extra-programs \ + CFLAGS="-O3 -flto -fPIC" \ + LDFLAGS="-flto" + build() { + "$source_dir/configure" "$@" + make -j"$jobs" + make install + } + ;; + openssl) + require_program perl + # The certificate directory of the system openssl is used so that certificate + # verification keeps working the same way as it does with the system openssl. + openssl_dir=$(openssl version -d 2>/dev/null | sed -n 's/^OPENSSLDIR: "\(.*\)"$/\1/p') + if [ -z "$openssl_dir" ]; then + openssl_dir=/etc/ssl + fi + set -- --prefix="$prefix" \ + --libdir=lib \ + --openssldir="$openssl_dir" \ + no-shared \ + no-apps \ + no-docs \ + no-tests \ + no-legacy \ + no-engine \ + no-comp \ + no-quic \ + no-ssl3 \ + no-weak-ssl-ciphers \ + no-cms \ + no-ct \ + no-ts \ + no-ocsp \ + no-srp \ + no-psk \ + no-dsa \ + no-ec2m \ + no-gost \ + no-idea \ + no-md2 \ + no-md4 \ + no-mdc2 \ + no-rc2 \ + no-rc4 \ + no-rc5 \ + no-bf \ + no-cast \ + no-seed \ + no-camellia \ + no-whirlpool \ + no-rmd160 \ + no-sm2 \ + no-sm3 \ + no-sm4 \ + no-siphash \ + -O3 -flto -fPIC + build() { + "$source_dir/Configure" "$@" + make -j"$jobs" + make install_sw + } + ;; + srt) + require_program cmake + set -- -DCMAKE_BUILD_TYPE=Release \ + -DCMAKE_INSTALL_PREFIX="$prefix" \ + -DCMAKE_INSTALL_LIBDIR=lib \ + -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \ + -DCMAKE_POSITION_INDEPENDENT_CODE=ON \ + -DENABLE_SHARED=OFF \ + -DENABLE_STATIC=ON \ + -DENABLE_APPS=OFF \ + -DENABLE_EXAMPLES=OFF \ + -DENABLE_TESTING=OFF \ + -DENABLE_UNITTESTS=OFF \ + -DUSE_ENCLIB=openssl \ + -DOPENSSL_ROOT_DIR="$prefix" \ + -DOPENSSL_USE_STATIC_LIBS=ON + build() { + cmake -S "$source_dir" -B "$build_dir" "$@" + cmake --build "$build_dir" -j"$jobs" + cmake --install "$build_dir" + } + ;; + ffmpeg) + require_program nasm + + encoders=aac,flac,libx264,libopus,h264_nvenc,hevc_nvenc,av1_nvenc,h264_vaapi,hevc_vaapi,vp8_vaapi,vp9_vaapi,h264_vulkan,hevc_vulkan + muxers=mp4,mov,matroska,webm,flv,mpegts,hls,whip + protocols=file,pipe,tcp,udp,http,https,tls,rtmp,rtmps,libsrt + filters=abuffer,abuffersink,amix,aresample,aformat,anull + + if pkg-config --atleast-version=1.16 libva; then + encoders=$encoders,av1_vaapi + else + echo "warning: libva is too old for av1 vaapi encoding" >&2 + fi + + if pkg-config --atleast-version=1.4.317 vulkan; then + encoders=$encoders,av1_vulkan + else + echo "warning: the vulkan headers are too old for av1 vulkan encoding" >&2 + fi + + # ffmpeg ignores $CC and the same compiler as gpu-screen-recorder has to be + # used because lto objects are not compatible between compilers. + set -- --prefix="$prefix" \ + --cc="$compiler" \ + --pkg-config-flags=--static \ + --disable-debug \ + --disable-everything \ + --disable-autodetect \ + --disable-programs \ + --disable-doc \ + --disable-avdevice \ + --disable-swscale \ + --disable-shared \ + --enable-static \ + --enable-pic \ + --enable-lto \ + --enable-gpl \ + --enable-version3 \ + --enable-network \ + --enable-encoder="$encoders" \ + --enable-muxer="$muxers" \ + --enable-protocol="$protocols" \ + --enable-filter="$filters" \ + --enable-bsf=extract_extradata \ + --enable-libx264 \ + --enable-libopus \ + --enable-libsrt \ + --enable-openssl \ + --enable-ffnvcodec \ + --enable-nvenc \ + --enable-cuda \ + --enable-vaapi \ + --enable-vulkan + build() { + "$source_dir/configure" "$@" + make -j"$jobs" + make install + } + ;; + *) + echo "error: unknown library $library" >&2 + exit 1 + ;; +esac + +# Rebuilding takes a long time, only do it when the source or the configuration changed. +stamp="$source_dir $compiler $*" +if [ -f "$stamp_file" ] && [ "$(cat "$stamp_file")" = "$stamp" ]; then + exit 0 +fi + +rm -rf "$build_dir" +mkdir -p "$build_dir" + +echo "Building $library, this takes a while. Output is written to $log_file" >&2 + +( + cd "$build_dir" + build "$@" +) >"$log_file" 2>&1 || { + echo "error: failed to build $library, see $log_file for details:" >&2 + tail -n 30 "$log_file" >&2 + exit 1 +} + +printf '%s' "$stamp" > "$stamp_file" |