mirror of
git://f0xx.org/android_cast
synced 2026-07-29 06:39:09 +03:00
228 lines
7.3 KiB
Bash
Executable File
228 lines
7.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build libvpx for Android ABIs and produce libvpx.a for ANDROIDCAST_LIBVPX_LIB.
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#
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# With --enable-external-build, libvpx does not provide a libvpx.a make target;
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# this script uses the NDK (ndk-build) + generated Android.mk, as upstream intends.
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#
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# Prerequisites:
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# git submodule update --init third-party/libvpx
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# Android NDK (auto-detected via scripts/android-ndk.sh)
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#
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# Usage:
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# ./scripts/build-native-codecs.sh arm64-v8a
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# ANDROIDCAST_LIBVPX_LIB=$PWD/build/native/arm64-v8a/libvpx.a ./gradlew assembleDebug
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#
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set -euo pipefail
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ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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ABI="${1:-arm64-v8a}"
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VPX_SRC_REAL="$ROOT/third-party/libvpx"
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PROJECT_OUT="$ROOT/build/native/$ABI"
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OUT="$PROJECT_OUT"
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BUILD_DIR="$OUT/libvpx-build"
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if [[ ! -d "$VPX_SRC_REAL" ]]; then
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echo "ERROR: $VPX_SRC_REAL missing. Run:"
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echo " git submodule update --init third-party/libvpx"
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exit 1
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fi
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# shellcheck source=android-ndk.sh
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source "$ROOT/scripts/android-ndk.sh"
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if ! NDK="$(androidcast_find_ndk_root "$ROOT")"; then
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exit 1
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fi
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NDK_HOST_BIN="$(androidcast_ndk_host_bin "$NDK")"
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if [[ ! -d "$NDK_HOST_BIN" ]]; then
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echo "ERROR: NDK host toolchain bin not found under $NDK"
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exit 1
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fi
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case "$ABI" in
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arm64-v8a) VPX_TARGET=arm64-android-gcc ;;
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armeabi-v7a) VPX_TARGET=armv7-android-gcc ;;
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x86_64) VPX_TARGET=x86_64-android-gcc ;;
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x86) VPX_TARGET=x86-android-gcc ;;
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*)
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echo "Unsupported ABI: $ABI"
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exit 1
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;;
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esac
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# libvpx Makefiles break on spaces in SRC_PATH_BARE.
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path_has_space() {
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case "$1" in
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*" "*) return 0 ;;
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*) return 1 ;;
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esac
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}
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VPX_SRC="$VPX_SRC_REAL"
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STAGING=""
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if path_has_space "$ROOT" || path_has_space "$VPX_SRC_REAL"; then
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STAGING="/tmp/androidcast-libvpx-${USER:-build}"
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VPX_SRC="$STAGING/src"
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BUILD_DIR="$STAGING/build/$ABI"
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OUT="$STAGING/out/$ABI"
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mkdir -p "$STAGING/build" "$STAGING/out"
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ln -sfn "$VPX_SRC_REAL" "$VPX_SRC"
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echo "Repo path contains spaces; using space-free staging under $STAGING"
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fi
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mkdir -p "$BUILD_DIR" "$OUT" "$PROJECT_OUT"
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export ANDROID_NDK_HOME="$NDK"
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export ANDROID_NDK_ROOT="$NDK"
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export PATH="$NDK_HOST_BIN:$PATH"
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VPX_CONFIGURE_EXTRA=()
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APP_CFLAGS_EXTRA=""
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case "$ABI" in
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x86)
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# NDK does not infer -msse4.1/-mavx from libvpx source names; AVX-512 is unused on Android x86.
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VPX_CONFIGURE_EXTRA+=(--disable-avx512)
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APP_CFLAGS_EXTRA="-msse4.1 -mavx"
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;;
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x86_64)
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VPX_CONFIGURE_EXTRA+=(--disable-avx512)
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APP_CFLAGS_EXTRA="-msse4.1 -mavx -mavx2"
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;;
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esac
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echo "Building libvpx for $ABI (target=$VPX_TARGET) ..."
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echo " source: $VPX_SRC"
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echo " build: $BUILD_DIR"
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cd "$BUILD_DIR"
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# Out-of-tree build fails if someone previously ran configure inside third-party/libvpx.
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if [[ -f "$VPX_SRC/vpx_config.h" ]]; then
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src_real="$(cd "$VPX_SRC" && pwd)"
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build_real="$(pwd)"
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if [[ "$src_real" != "$build_real" ]]; then
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echo "Cleaning in-tree configure artifacts from libvpx source (needed for out-of-tree build)..."
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make -C "$VPX_SRC" distclean >/dev/null 2>&1 || true
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rm -f "$VPX_SRC"/vpx_config.h "$VPX_SRC"/vpx_config.c "$VPX_SRC"/vpx_version.h \
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"$VPX_SRC"/config.mk "$VPX_SRC"/Makefile
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rm -f "$VPX_SRC"/libs-*.mk "$VPX_SRC"/vp*_rtcd.h "$VPX_SRC"/libvpx*.a 2>/dev/null || true
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fi
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fi
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LIBS_MK="$BUILD_DIR/libs-${VPX_TARGET}.mk"
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need_configure=false
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if [[ ! -f Makefile ]]; then
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need_configure=true
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elif [[ ! -f "$LIBS_MK" ]] || ! grep -q "^TOOLCHAIN := ${VPX_TARGET}\$" "$BUILD_DIR/config.mk" 2>/dev/null; then
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echo "Re-configuring (stale or wrong ABI in $BUILD_DIR)..."
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make distclean >/dev/null 2>&1 || rm -f Makefile config.mk "$LIBS_MK" vpx_config.h vpx_config.c vpx_config.asm \
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vpx_version.h vp8_rtcd.h vp9_rtcd.h vpx_scale_rtcd.h vpx_dsp_rtcd.h
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need_configure=true
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elif [[ "$ABI" == x86 || "$ABI" == x86_64 ]] && [[ -f "$BUILD_DIR/vpx_config.h" ]] \
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&& grep -q '#define HAVE_AVX512 1' "$BUILD_DIR/vpx_config.h"; then
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echo "Re-configuring (AVX-512 disabled for Android NDK on $ABI)..."
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make distclean >/dev/null 2>&1 || rm -f Makefile config.mk "$LIBS_MK" vpx_config.h vpx_config.c vpx_config.asm \
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vpx_version.h vp8_rtcd.h vp9_rtcd.h vpx_scale_rtcd.h vpx_dsp_rtcd.h
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need_configure=true
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fi
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if $need_configure; then
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"$VPX_SRC/configure" \
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--target="$VPX_TARGET" \
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--disable-examples \
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--disable-tools \
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--disable-unit-tests \
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--disable-webm-io \
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--enable-vp8 \
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--enable-vp9 \
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--enable-static \
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--disable-shared \
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--extra-cflags="-fPIC -O2" \
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--enable-multi-res-encoding \
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--enable-vp9-temporal-denoising \
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--enable-onthefly-bitpacking \
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--enable-error-concealment \
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--enable-realtime-only \
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--enable-postproc \
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--enable-vp9-postproc \
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--enable-multithread \
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--enable-spatial-resampling \
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--disable-debug-libs \
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--disable-docs \
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--enable-external-build \
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"${VPX_CONFIGURE_EXTRA[@]}"
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fi
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# armeabi-v7a ndk-build runs make in ndk-app/ and needs vpx_config.asm (not required for arm64).
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make vpx_config.asm 2>/dev/null || true
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if [[ -f "$BUILD_DIR/vpx_config.asm" ]] && [[ ! -s "$BUILD_DIR/vpx_config.asm" ]]; then
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rm -f "$BUILD_DIR/vpx_config.asm"
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make vpx_config.asm
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fi
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# RTCD headers (configure creates them; refresh if missing).
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make -j1 vp8_rtcd.h vp9_rtcd.h vpx_scale_rtcd.h vpx_dsp_rtcd.h
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# NDK project root must not contain libvpx's top-level Makefile (ndk-build would invoke it).
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NDK_ROOT="$BUILD_DIR/ndk-app"
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JNI_DIR="$NDK_ROOT/jni"
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rm -rf "$NDK_ROOT"
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mkdir -p "$JNI_DIR"
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ln -sfn "$VPX_SRC" "$JNI_DIR/libvpx"
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# NDK Android.mk prepends jni/ to ASM_CONVERSION; keep the configure-generated absolute path
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# in BUILD_DIR for `make vpx_config.asm`, and use a jni-only copy for ndk-build.
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LIBS_MK_NDK="$BUILD_DIR/libs-ndk-${VPX_TARGET}.mk"
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if [[ -f "$LIBS_MK" ]]; then
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cp -f "$LIBS_MK" "$LIBS_MK_NDK"
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sed -i 's|^ASM_CONVERSION=.*|ASM_CONVERSION=libvpx/build/make/ads2gas.pl|' "$LIBS_MK_NDK"
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fi
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for f in config.mk vpx_config.c vpx_config.h vpx_config.asm vpx_version.h \
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vp8_rtcd.h vp9_rtcd.h vpx_scale_rtcd.h vpx_dsp_rtcd.h; do
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if [[ -f "$BUILD_DIR/$f" ]]; then
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ln -sfn "$BUILD_DIR/$f" "$JNI_DIR/$f"
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# ndk-build may invoke make in ndk-app/ (not jni/) for RTCD / vpx_config.asm on armeabi-v7a.
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ln -sfn "$BUILD_DIR/$f" "$NDK_ROOT/$f"
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fi
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done
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if [[ -f "$LIBS_MK_NDK" ]]; then
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ln -sfn "$LIBS_MK_NDK" "$JNI_DIR/libs-${VPX_TARGET}.mk"
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fi
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{
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echo "APP_ABI := $ABI"
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echo "APP_PLATFORM := android-29"
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echo "APP_STL := c++_static"
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if [[ -n "$APP_CFLAGS_EXTRA" ]]; then
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echo "APP_CFLAGS += $APP_CFLAGS_EXTRA"
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fi
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} > "$JNI_DIR/Application.mk"
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cat > "$JNI_DIR/Android.mk" <<'EOF'
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LOCAL_PATH := $(call my-dir)
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include $(CLEAR_VARS)
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# configure outputs (RTCD headers, vpx_config.h) live in jni/ — not inside libvpx sources
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LOCAL_CFLAGS += -I$(LOCAL_PATH)
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include $(LOCAL_PATH)/libvpx/build/make/Android.mk
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EOF
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"$NDK/ndk-build" -C "$NDK_ROOT" -j"$(nproc)"
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LIBVPX_A="$NDK_ROOT/obj/local/$ABI/libvpx.a"
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if [[ ! -f "$LIBVPX_A" ]]; then
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echo "ERROR: expected $LIBVPX_A after ndk-build"
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exit 1
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fi
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cp -f "$LIBVPX_A" "$OUT/libvpx.a"
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cp -f "$OUT/libvpx.a" "$PROJECT_OUT/libvpx.a"
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echo ""
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echo "Built: $PROJECT_OUT/libvpx.a"
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if [[ -n "$STAGING" ]]; then
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echo "(staged under $STAGING because of spaces in repo path)"
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fi
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echo "Build other ABIs as needed, e.g.:"
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echo " ./scripts/build-native-codecs.sh armeabi-v7a"
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echo "Then rebuild the APK (CMake picks build/native/<abi>/libvpx.a per ABI):"
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echo " ./gradlew assembleDebug"
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