add a script to covert dylib to framework

avbuild.sh

@@ -1786,15 +1786,20 @@ make_universal()
   shift 1
   local dirs=($@)
   [ -z "$dirs" ] && return 0
+  if [[ "$os" == ios* || "$os" == macos* || "$os" == osx* || "$os" == *catalyst* || "$os" == tv* || "$os" == xr* || "$os" == vision* || "$os" == watch* ]]; then
+    chmod +x $THIS_DIR/tools/mkframework.sh
+    cp -avf $THIS_DIR/tools/mkframework.sh ${dirs[0]}
+  fi
   [ ${#dirs[@]} -le 1 ] && return 0
 # TODO: move to a new script
   if [[ "$os" == ios* || "$os" == macos* || "$os" == osx* || "$os" == *catalyst* || "$os" == tv* || "$os" == xr* || "$os" == vision* || "$os" == watch* ]]; then
     local OUT_DIR=sdk-$os
     rm -rf $OUT_DIR
     cd $THIS_DIR
     mkdir -p $OUT_DIR/{bin,lib}
+    cp -avf tools/mkframework.sh $OUT_DIR
     cp -af ${dirs[0]}/include $OUT_DIR
-    for a in libavutil libavformat libavcodec libavfilter libavdevice libswscale libswresample; do
+    for a in libavutil libavformat libavcodec libavfilter libavdevice libswscale libswresample libffmpeg; do
       libs=
       for d in ${dirs[@]}; do
         [ -f $d/lib/${a}.a ] && libs+=" $d/lib/${a}.a"

tools/mkframework.sh

@@ -0,0 +1,87 @@
+# A script to convert a dylib to a framework: 'wbsecg1 at gmail.com' 2024. MIT license
+gen_info_plist() {
+    local name=${1##*/}
+# assume multiple archs have the same version
+    local VERSION=$(otool -L $1 |grep "@rpath/$name.framework/$name" |grep -v ":" |head -n 1 |sed 's,.*current version \(.*\)),\1,')
+    local VERSION_SHORT=${VERSION%.*}
+# minos: LC_BUILD_VERSION, since macOS10.13/iOS12.0
+# version: LC_VERSION_MIN_IPHONEOS/MACOSX, old target version
+
+    if vtool -arch arm64 -show-build $1 2>/dev/null; then
+        MINOS_NEW=$(vtool -arch arm64 -show-build $1 |grep -E 'minos' |sed 's,.*minos \(.*\),\1,')
+        MINOS_OLD=$(vtool -arch arm64 -show-build $1 |grep -E 'version' |sed 's,.*version \(.*\),\1,')
+    elif vtool -arch x86_64 -show-build $1 2>/dev/null; then
+        MINOS_NEW=$(vtool -arch x86_64 -show-build $1 |grep -E 'minos' |sed 's,.*minos \(.*\),\1,')
+        MINOS_OLD=$(vtool -arch x86_64 -show-build $1 |grep -E 'version' |sed 's,.*version \(.*\),\1,')
+    elif vtool -arch arm64e -show-build $1 2>/dev/null; then
+        MINOS_NEW=$(vtool -arch arm64e -show-build $1 |grep -E 'minos' |sed 's,.*minos \(.*\),\1,')
+        MINOS_OLD=$(vtool -arch arm64e -show-build $1 |grep -E 'version' |sed 's,.*version \(.*\),\1,')
+    fi
+    if ! vtool -show-build $1 |grep MACOS &>/dev/null; then
+        MINOS_NODE="
+    <key>MinimumOSVersion</key>
+    <string>${MINOS_NEW:-$MINOS_OLD}</string>"
+        PLIST=${1%/*}/Info.plist
+    else
+        PLIST=${1%/*}/Resources/Info.plist
+    fi
+    cat > $PLIST <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleName</key>
+    <string>${name}</string>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${name}</string>
+	<key>CFBundleIconFile</key>
+	<string></string>$MINOS_NODE
+	<key>CFBundleIdentifier</key>
+	<string>com.mediadevkit.${name}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>${VERSION}</string>
+	<key>CFBundleShortVersionString</key>
+	<string>${VERSION_SHORT}</string>
+	<key>CSResourcesFileMapped</key>
+	<true/>
+</dict>
+</plist>
+EOF
+}
+
+# TODO: dependencies, e.g. avcodec depends on libavutil.?.dylib
+dylib2fwk() {
+    local dylib=$1
+    local dydir=${dylib%/*}
+    local name=${1##*/}
+    name=${name%%.*}
+    name=${name#lib}
+    name=${name/ff/FF} # for ffmpeg=>FFmpeg
+    local fwk=$dydir/$name.framework
+    mkdir -p $fwk
+    if vtool -show-build $dylib |grep MACOS &>/dev/null; then
+        mkdir -p $fwk/Versions/A/Resources
+        cp -avfL $dylib $fwk/Versions/A/$name
+        ln -sfh A $fwk/Versions/Current
+        ln -sfh Versions/Current/Resources $fwk/Resources
+        ln -sf Versions/Current/$name $fwk/$name
+        install_name_tool -id @rpath/$name.framework/Versions/A/$name $fwk/Versions/A/$name
+        gen_info_plist $fwk/$name
+    else
+        cp -avfL $dylib $fwk/$name
+        install_name_tool -id @rpath/$name.framework/$name $fwk/$name
+        gen_info_plist $fwk/$name
+    fi
+}
+
+[ $# -eq 0 ] && echo "Usage: $0 dylib_path" && exit 1
+#for s in $(ls lib | grep -E '[a-z]+\.[0-9]+\.dylib'); do
+dylib2fwk $1