feat: support build of different architecture

build.sh

@@ -1,3 +1,18 @@
+export ARCH=$(uname -m)
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --arch)
+      export ARCH=$2
+      shift 2
+      ;;
+    *)
+      echo "Usage: $0 --arch [arch]"
+      exit 1
+      ;;
+  esac
+done
+
 export workDir=$(pwd)/work
 export outDir=$(pwd)/out
 export PREFIX=$workDir/prefix
@@ -5,8 +20,10 @@ export PREFIX=$workDir/prefix
 export PKG_CONFIG_DIR=$PREFIX/lib/pkgconfig
 export PKG_CONFIG_PATH=$PKG_CONFIG_DIR
 
+rm -rf $PREFIX
+mkdir -p $PREFIX
+
 mkdir -p $workDir
-mkdir -p $prefix
 mkdir -p $outDir
 
 bash scripts/build-openh264.sh

scripts/build-ffmpeg.sh

@@ -9,7 +9,7 @@ make distclean
 ./configure --disable-gpl --disable-nonfree --disable-doc --disable-network \
   --disable-ffprobe --disable-ffplay --enable-static --disable-shared \
   --enable-libopenh264 \
-  --prefix=$PREFIX
+  --prefix=$PREFIX --enable-cross-compile --arch=$ARCH --cc="clang -arch $ARCH"
 
 make -j
 

scripts/build-openh264.sh

@@ -18,7 +18,9 @@ cd $projectDir
 
 git checkout tags/v$OPENH264_VERSION -b v$OPENH264_VERSION
 
-args="PREFIX=$PREFIX"
+args="PREFIX=$PREFIX ARCH=$ARCH"
+
+make clean
 
 make -j $args