build: assemble pinned OBS 32.0.4 runtimes for Linux and Windows

Linux builds libobs and an allowlist of official plugins from source in OBS's relocatable layout. Windows copies the official release byte-for-byte so the Game Capture hook keeps its signature. Adds a headless Wayland rig for PipeWire/portal capture tests on machines without a display.
2026-10-08 13:51:22 +02:00
parent eb364d25e2
commit 80b6abdb32
4 changed files with 264 additions and 0 deletions
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+# Assemble the pinned OBS runtime for Windows x64 from the official release zip.
+#
+# Files are copied byte-for-byte from the OBS release so the signed Game
+# Capture hook (graphics-hook64.dll, inject-helper, get-graphics-offsets) keeps
+# its original signature. Runs on Linux or Git Bash; needs curl, unzip and
+# sha256sum.
+set -euo pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=versions.env
+source "${script_dir}/versions.env"
+
+cache_dir="${CLIPBIN_CACHE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/clipbin}"
+zip_name="OBS-Studio-${OBS_VERSION}-Windows-x64.zip"
+zip_path="${cache_dir}/${zip_name}"
+extract_dir="${cache_dir}/obs-windows-${OBS_VERSION}"
+bundle_dir="${CLIPBIN_OBS_RUNTIME:-${script_dir}/../../target/obs-runtime/windows-x86_64}"
+
+# Official plugins the recorder uses: Game/Window Capture, WASAPI audio,
+# hardware encoders (AMF lives in obs-ffmpeg) and the FFmpeg muxer.
+plugins=(win-capture win-wasapi obs-ffmpeg obs-nvenc obs-qsv11)
+# OBS front-end, scripting and software-encoder files Clipbin does not use.
+# Subdirectories of bin/64bit are Qt plugins and are skipped too.
+excluded_bin='^(obs64\.exe|obs-frontend-api\.dll|obs-scripting\.dll|lua51\.dll|Qt6.*\.dll|datachannel\.dll|libx264-.*\.dll|.*\.pdb)$'
+
+mkdir -p "${cache_dir}"
+if [[ ! -f "${zip_path}" ]]; then
+    curl -fL --retry 3 -o "${zip_path}.partial" \
+        "https://github.com/obsproject/obs-studio/releases/download/${OBS_VERSION}/${zip_name}"
+    mv "${zip_path}.partial" "${zip_path}"
+fi
+echo "${OBS_WINDOWS_X64_SHA256}  ${zip_path}" | sha256sum --check --quiet
+
+rm -rf "${extract_dir}"
+unzip -q "${zip_path}" -d "${extract_dir}"
+
+# Keep the OBS install layout: OBS looks for obs-ffmpeg-mux.exe next to the
+# running executable, so Clipbin's executable lives in bin/64bit.
+rm -rf "${bundle_dir}"
+mkdir -p "${bundle_dir}/bin/64bit" "${bundle_dir}/obs-plugins/64bit" "${bundle_dir}/data/obs-plugins"
+for file in "${extract_dir}"/bin/64bit/*; do
+    name="$(basename "${file}")"
+    if [[ -f "${file}" && ! "${name}" =~ ${excluded_bin} ]]; then
+        cp -a "${file}" "${bundle_dir}/bin/64bit/"
+    fi
+done
+cp -a "${extract_dir}/data/libobs" "${bundle_dir}/data/libobs"
+for plugin in "${plugins[@]}"; do
+    cp -a "${extract_dir}/obs-plugins/64bit/${plugin}.dll" "${bundle_dir}/obs-plugins/64bit/"
+    if [[ -d "${extract_dir}/data/obs-plugins/${plugin}" ]]; then
+        cp -a "${extract_dir}/data/obs-plugins/${plugin}" "${bundle_dir}/data/obs-plugins/"
+    fi
+done
+find "${bundle_dir}" -name '*.pdb' -delete
+
+# Record the signed capture-hook files so a Windows check can verify them
+# against Get-AuthenticodeSignature before packaging.
+(cd "${bundle_dir}" && sha256sum data/obs-plugins/win-capture/*.exe data/obs-plugins/win-capture/*.dll) \
+    > "${bundle_dir}/SIGNED-HOOKS.sha256"
+
+cat > "${bundle_dir}/VERSION" <<EOF
+obs=${OBS_VERSION}
+source=${zip_name}
+sha256=${OBS_WINDOWS_X64_SHA256}
+plugins=${plugins[*]}
+EOF
+echo "OBS ${OBS_VERSION} Windows runtime assembled in ${bundle_dir}"