linux.yml

name: linux
on:
  push:
    tags:
      - "*"
  pull_request:
    branches: ["main"]

env:
  FFMPEG_ROOT: /tmp/ffmpeg
  SOURCE_DIR: opencv
  OPENCV_SUBDIR: lib/cmake/opencv4

jobs:
  linux-x64:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        opencv-version: [4.10.0]
        os:
          - { arch: x64, ffmpeg_arch: amd64 }
    env:
      PACKAGE_NAME: libopencv-linux-${{ matrix.os.arch }}
      COMMON_CMAKE_OPTIONS: |
        -DCMAKE_INSTALL_PREFIX=install \
        -DCMAKE_BUILD_TYPE=Release \
        -DOPENCV_EXTRA_MODULES_PATH="${{ github.workspace }}/opencv_contrib/modules" \
        -DCMAKE_POLICY_DEFAULT_CMP0074=NEW \
    steps:
      - name: setup
        run: |
          sudo apt-get update
          sudo apt-get install -y libgtk-3-dev

      - uses: actions/checkout@v4
      - name: setup-opencv-source
        run: |
          git clone -b ${{ matrix.opencv-version }} https://github.com/opencv/opencv.git ${{ env.SOURCE_DIR }}
          
          git apply -p 0 patches/opencv-4.10.0-detect_ffmpeg.patch
          
          git clone -b ${{ matrix.opencv-version }} https://github.com/opencv/opencv_contrib.git opencv_contrib
      - name: setup ffmpeg
        run: |
          wget -q -O ffmpeg.tar.xz https://github.com/rainyl/FFmpeg-Builds/releases/download/latest/ffmpeg-n6.1-latest-linux64-lgpl-shared-6.1.tar.xz
          mkdir -p $FFMPEG_ROOT/cmake
          tar xf ffmpeg.tar.xz -C $FFMPEG_ROOT --strip-components=1
          cp -rf ${{ github.workspace }}/cmake/ffmpeg-config.cmake $FFMPEG_ROOT/cmake/
      - name: build
        run: |
          cd ${{ env.SOURCE_DIR }}
          mkdir build && cd build
          cmake `cat ${{ github.workspace }}/options.txt` \
            ${{ env.COMMON_CMAKE_OPTIONS }} -S .. \
            -DFFMPEG_DIR="$FFMPEG_ROOT/cmake" \
            -DFFMPEG_ARCH=${{ matrix.os.ffmpeg_arch }}
          cmake --build . -j $(nproc)
          cmake --build . --target install
      - name: package
        run: |
          mkdir ${{ env.PACKAGE_NAME }}
          cp -rf ${{ env.SOURCE_DIR }}/build/install/* ${{ env.PACKAGE_NAME }}/

          cp -rf $FFMPEG_ROOT ${{ env.PACKAGE_NAME }}/ffmpeg

          tar -C ${{ env.PACKAGE_NAME }} -zcvf ${{ env.PACKAGE_NAME }}.tar.gz .
      - name: test
        run: |
          cd test
          mkdir build && cd build
          cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
            -DOpenCV_DIR=${{ github.workspace }}/${{ env.PACKAGE_NAME }}/${{ env.OPENCV_SUBDIR }} \
            -DFFMPEG_DIR=$FFMPEG_ROOT/cmake ..
          cmake --build . -j $(nproc)
      - name: upload
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.PACKAGE_NAME }}
          path: ${{ env.PACKAGE_NAME }}.tar.gz
      - name: release
        uses: softprops/action-gh-release@v1
        if: startsWith(github.ref, 'refs/tags/')
        with:
          draft: true
          prerelease: false
          files: |
            ${{ env.PACKAGE_NAME }}.tar.gz

  linux-arm64:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        opencv-version: [4.10.0]
        os:
          - { arch: arm64, ffmpeg_arch: arm64 }
    env:
      PACKAGE_NAME: libopencv-linux-${{ matrix.os.arch }}
      COMMON_CMAKE_OPTIONS: |
        -DCMAKE_INSTALL_PREFIX=install \
        -DCMAKE_BUILD_TYPE=Release \
        -DOPENCV_EXTRA_MODULES_PATH="${{ github.workspace }}/opencv_contrib/modules" \
        -DCMAKE_POLICY_DEFAULT_CMP0074=NEW \
    steps:
      - name: setup
        run: |
          sudo apt-get update
          sudo apt-get install g++-aarch64-linux-gnu

      - uses: actions/checkout@v4
      - name: setup-opencv-source
        run: |
          git clone -b ${{ matrix.opencv-version }} https://github.com/opencv/opencv.git opencv
          
          git apply -p 0 patches/opencv-4.10.0-detect_ffmpeg.patch

          git clone -b ${{ matrix.opencv-version }} https://github.com/opencv/opencv_contrib.git opencv_contrib
      - name: setup ffmpeg
        run: |
          wget -q -O ffmpeg.tar.xz https://github.com/rainyl/FFmpeg-Builds/releases/download/latest/ffmpeg-n6.1-latest-linuxarm64-lgpl-shared-6.1.tar.xz
          mkdir -p $FFMPEG_ROOT/cmake
          tar xf ffmpeg.tar.xz -C $FFMPEG_ROOT --strip-components=1
          cp -rf ${{ github.workspace }}/cmake/ffmpeg-config.cmake $FFMPEG_ROOT/cmake/
      - name: build
        run: |
          cd ${{ env.SOURCE_DIR }}
          mkdir build && cd build
          cmake `cat ${{ github.workspace }}/options.txt` \
            ${{ env.COMMON_CMAKE_OPTIONS }} -S .. \
            -DCMAKE_TOOLCHAIN_FILE=${{ github.workspace }}/cmake/aarch64-linux-gnu.toolchain.cmake \
            -DFFMPEG_DIR="$FFMPEG_ROOT/cmake" \
            -DFFMPEG_ARCH=${{ matrix.os.ffmpeg_arch }}
          cmake --build . -j $(nproc)
          cmake --build . --target install
      - name: package
        run: |
          mkdir ${{ env.PACKAGE_NAME }}
          cp -rf ${{ env.SOURCE_DIR }}/build/install/* ${{ env.PACKAGE_NAME }}/

          cp -rf $FFMPEG_ROOT ${{ env.PACKAGE_NAME }}/ffmpeg

          tar -C ${{ env.PACKAGE_NAME }} -zcvf ${{ env.PACKAGE_NAME }}.tar.gz .
      - name: test
        run: |
          cd test
          mkdir build && cd build
          cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
            -DCMAKE_TOOLCHAIN_FILE=${{ github.workspace }}/cmake/aarch64-linux-gnu.toolchain.cmake \
            -DOpenCV_DIR=${{ github.workspace }}/${{ env.PACKAGE_NAME }}/${{ env.OPENCV_SUBDIR }} \
            -DFFMPEG_DIR=$FFMPEG_ROOT/cmake ..
          cmake --build . -j $(nproc)
      - name: upload
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.PACKAGE_NAME }}
          path: ${{ env.PACKAGE_NAME }}.tar.gz
      - name: release
        uses: softprops/action-gh-release@v1
        if: startsWith(github.ref, 'refs/tags/')
        with:
          draft: true
          prerelease: false
          files: |
            ${{ env.PACKAGE_NAME }}.tar.gz