ci: ios arm64 only, add ffmpeg xcframework

Author: wang-bin

.github/workflows/build.yml

@@ -100,7 +100,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        config: [RelWithDebInfo]
+        config: [MinSizeRel]
     steps:
     - uses: actions/checkout@v2
     - name: Checkout source
@@ -119,7 +119,7 @@ jobs:
     - name: Configure CMake
       shell: bash
       working-directory: mdk
-      run: cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=$PWD/cmake/tools/ios.cmake -DIOS_DEPLOYMENT_TARGET=6.0 -DIOS_ARCH="arm64;armv7" -DIOS_BITCODE=1 -DIOS_BITCODE_MARKER=1 -H. -Bbuild/${TARGET_OS} -DCMAKE_BUILD_TYPE=${{ matrix.config }} -DCMAKE_INSTALL_PREFIX=$PWD/mdk-sdk -DCMAKE_VERBOSE_MAKEFILE=1 -DFFMPEG_EMBED=0 # FFMPEG_EMBED=0 to copy libffmpeg.4.dylib
+      run: cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=$PWD/cmake/tools/ios.cmake -DIOS_DEPLOYMENT_TARGET=8.0 -DIOS_ARCH="arm64" -DIOS_BITCODE=1 -DIOS_BITCODE_MARKER=1 -H. -Bbuild/${TARGET_OS} -DCMAKE_BUILD_TYPE=${{ matrix.config }} -DCMAKE_INSTALL_PREFIX=$PWD/mdk-sdk -DCMAKE_VERBOSE_MAKEFILE=1 -DFFMPEG_EMBED=0 # FFMPEG_EMBED=0 to copy libffmpeg.4.dylib
     - name: Build
       shell: bash
       working-directory: mdk
@@ -130,6 +130,7 @@ jobs:
       run: |
         cmake -P build/${TARGET_OS}/cmake_install.cmake
         tools/mksdk.sh mdk-sdk || echo done
+        lipo -thin arm64 mdk-sdk/lib/libffmpeg.4.dylib -output mdk-sdk/lib/libffmpeg.4.dylib
         tar Jcfv mdk-sdk-$TARGET_OS.tar.xz mdk-sdk
         mv mdk-sdk*.tar.xz ..
     - name: Archieve SDK
@@ -158,15 +159,15 @@ jobs:
     - name: Download iOS sdk
       uses: actions/download-artifact@v2
       with:
-        name: mdk-sdk-iOS-RelWithDebInfo
+        name: mdk-sdk-iOS-MinSizeRel
     - name: Install tools
       shell: bash
       run: brew install p7zip hudochenkov/sshpass/sshpass
     - name: make XCFramework and SDK
       shell: bash
       run: |
         export XZ_OPT="-9e --threads=`getconf _NPROCESSORS_ONLN`"
-        mkdir -p macOS iOS mdk-sdk/lib macOS-arm64 macOS-x86_64
+        mkdir -p macOS iOS mdk-sdk/{Frameworks,lib} macOS-arm64 macOS-x86_64
         tar Jxf mdk-sdk-macOS-x86_64.tar.xz -C macOS-x86_64
         tar Jxf mdk-sdk-macOS-arm64.tar.xz -C macOS-arm64
         tar Jxf mdk-sdk-iOS.tar.xz -C iOS
@@ -178,14 +179,17 @@ jobs:
         for b in `ls macOS-arm64/mdk-sdk/bin`; do # exes exist in both archs
           lipo -create macOS-{arm,x86_}64/mdk-sdk/bin/$b -output macOS/mdk-sdk/bin/$b
         done
-        mv macOS/mdk-sdk/lib/libffmpeg*.dylib macOS/mdk-sdk/lib/cmake mdk-sdk/lib/
-        mv macOS/mdk-sdk/{bin,doc,include,*.sh} mdk-sdk
-        mv macOS/mdk-sdk/README.md mdk-sdk/README-macOS.md
-        mv iOS/mdk-sdk/README.md mdk-sdk/README-iOS.md
+        cp -af macOS/mdk-sdk/{bin,doc,include,*.sh} mdk-sdk
+        cp -af macOS/mdk-sdk/README.md mdk-sdk/README-macOS.md
+        cp -af iOS/mdk-sdk/README.md mdk-sdk/README-iOS.md
         # https://developer.apple.com/forums/thread/655768 (error: the path does not point to a valid debug symbols file: macOS/mdk-sdk/lib/mdk.framework.dSYM)
         xcodebuild -create-xcframework -framework macOS/mdk-sdk/lib/mdk.framework -debug-symbols $PWD/macOS/mdk-sdk/lib/mdk.framework.dSYM -framework iOS/mdk-sdk/lib/mdk.framework -output mdk-sdk/lib/mdk.xcframework
-        binfw=`find mdk-sdk/lib/mdk.xcframework/ -name "macos-*" -depth 1`
-        ln -sf ${binfw/mdk-sdk/..}/mdk.framework mdk-sdk/bin
+        xcodebuild -create-xcframework -library macOS/mdk-sdk/lib/libffmpeg*.dylib -library iOS/mdk-sdk/lib/libffmpeg*.dylib -output mdk-sdk/lib/FFmpeg.xcframework
+        mdkfw=`find mdk-sdk/lib/mdk.xcframework -name "macos-*" -depth 1`
+        avfw=`find mdk-sdk/lib/FFmpeg.xcframework -name "macos-*" -depth 1`
+        # ensure bin/* can Find mdk and ffmpeg
+        ln -sf ${mdkfw/mdk-sdk/..}/mdk.framework mdk-sdk/Frameworks
+        ln -sf ${avfw/mdk-sdk/..}/libffmpeg.4.dylib mdk-sdk/Frameworks
         tar Jcvf mdk-sdk-apple.tar.xz mdk-sdk
         7z a mdk-sdk-apple.zip mdk-sdk
         tar Jcvf mdk-sdk-macOS.tar.xz -C macOS .
@@ -199,8 +203,8 @@ jobs:
     - name: Archieve macOS SDK
       uses: actions/upload-artifact@v2
       with:
-        name: mdk-sdk-apple
-        path: mdk-sdk-apple.tar.xz
+        name: mdk-sdk-macOS
+        path: mdk-sdk-macOS.tar.xz
     - name: Upload to SourceForge
       shell: bash
       run: |