.cmake-format.py

@@ -0,0 +1,28 @@
+# -----------------------------
+# Options affecting formatting.
+# -----------------------------
+with section("format"):
+  # How wide to allow formatted cmake files
+  line_width = 130
+
+  # How many spaces to tab for indent
+  tab_size = 4
+
+  # If an argument group contains more than this many sub-groups (parg or kwarg
+  # groups) then force it to a vertical layout.
+  max_subgroups_hwrap = 3
+
+  # If a positional argument group contains more than this many arguments, then
+  # force it to a vertical layout.
+  max_pargs_hwrap = 10
+
+  # If a statement is wrapped to more than one line, than dangle the closing
+  # parenthesis on its own line.
+  dangle_parens = True
+
+# ------------------------------------------------
+# Options affecting comment reflow and formatting.
+# ------------------------------------------------
+with section("markup"):
+  # enable comment markup parsing and reflow
+  enable_markup = False

.gitattributes

@@ -1,2 +1,3 @@
 * text=auto
 *.sh text eol=lf
+*.y4m -text -diff

.github/actions/cache/action.yml

@@ -0,0 +1,65 @@
+name: 'Cache for all OSes'
+description: 'Needs to be called before any call to ext/.cmd|sh or cmake'
+inputs:
+  extra-key:
+    description: 'Extra cache key to use in the cache name. Useful when several caches are used in one workflow.'
+    default: ''
+  use-meson:
+    description: 'Whether meson is used'
+    default: false
+  use-rust:
+    description: 'Whether rust is used'
+    default: false
+outputs:
+  ext-cache-hit:
+    value: ${{ steps.cache-ext.outputs.cache-hit }}
+runs:
+  using: "composite"
+  steps:
+    - name: Find workflow path
+      env:
+        WORKFLOW_REF: ${{ github.workflow_ref }}
+      id: workflow-info
+      run: |
+        # Remove repository path.
+        END=(${WORKFLOW_REF/*.github/.github})
+        # Remove branch reference starting with @.
+        MIDDLE=(${END/%@*/})
+        echo "Current workflow path is: ${MIDDLE}"
+        echo "path=${MIDDLE}" >> "$GITHUB_OUTPUT"
+      shell: bash
+    - name: Generate meson cache key
+      if: ${{ inputs.use-meson == 'true' }}
+      run: |
+        echo "MESON_KEY=meson-`meson --version`" >> $GITHUB_ENV
+      shell: bash
+    - name: Generate empty meson cache key
+      if: ${{ inputs.use-meson != 'true' }}
+      run: |
+        echo "MESON_KEY=meson-none" >> $GITHUB_ENV
+      shell: bash
+    - name: Generate cargo cache key
+      if: ${{ inputs.use-rust == 'true' }}
+      id: cargo-key
+      run: |
+        echo "key=cargo-registry-${{ runner.os }}-${{ runner.arch }}-${{ github.job }}-${{ inputs.extra-key }}-${{ hashFiles('.github/action/**', steps.workflow-info.outputs.path, 'CMakeLists.txt', 'cmake/Modules/Findrav1e.cmake', 'cmake/Modules/LocalRav1e.cmake', 'ext/rav1e.cmd') }}" >> "$GITHUB_OUTPUT"
+      shell: bash
+    - name: Cache all of cargo
+      if: ${{ inputs.use-rust == 'true' }}
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      continue-on-error: true
+      with:
+        path: ~/.cargo
+        key: ${{ steps.cargo-key.outputs.key }}-${{ github.run_id }}
+        restore-keys: ${{ steps.cargo-key.outputs.key }}
+    - name: Cache external dependencies in ext
+      id: cache-ext
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        path: ext
+        key: ext-${{ runner.os }}-${{ runner.arch }}-${{ github.job }}-${{ inputs.extra-key }}-${{ env.MESON_KEY }}-${{ hashFiles('.github/action/**', steps.workflow-info.outputs.path, 'ext/*.cmd', 'ext/*.sh') }}
+    - name: Cache external dependencies in build/_deps
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        path: build/_deps
+        key: deps-${{ runner.os }}-${{ runner.arch }}-${{ github.job }}-${{ inputs.extra-key }}-${{ env.MESON_KEY }}-${{ hashFiles('.github/action/**', steps.workflow-info.outputs.path, 'CMakeLists.txt', 'cmake/Modules/*') }}

.github/actions/setup-common/action.yml

@@ -0,0 +1,43 @@
+name: 'Common setup for all OSes'
+description: 'Installs common dependencies'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  oldest-cmake:
+    description: 'Can take the values: true, false. Only useful on Linux to force using the minimum required CMake'
+    default: 'false'
+runs:
+  using: "composite"
+  steps:
+    - name: Set up Python
+      uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
+      with:
+        python-version: '3.x'
+    - name: Set up CMake 3.13
+      if: ${{ runner.os == 'Linux' && inputs.oldest-cmake == 'true' }}
+      uses: jwlawson/actions-setup-cmake@802fa1a2c4e212495c05bf94dba2704a92a472be # v2.0.2
+      with:
+        # Use the minimum required version of cmake.
+        cmake-version: '3.13.x'
+    - name: Print CMake version
+      run: cmake --version
+      shell: bash
+    - name: Set up ninja
+      uses: seanmiddleditch/gha-setup-ninja@8b297075da4cd2a5f1fd21fe011b499edf06e9d2 # v4
+    - name: Set up nasm
+      if: ${{ inputs.codec-aom == 'LOCAL' || inputs.codec-dav1d == 'LOCAL' }}
+      uses: ilammy/setup-nasm@13cbeb366c45c4379d3478cdcbadd8295feb5028 # v1.5.1
+    - name: Set up rust
+      if: ${{ inputs.codec-rav1e == 'LOCAL' }}
+      uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af # v1.0.7
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true

.github/actions/setup-linux/action.yml

@@ -0,0 +1,94 @@
+name: 'Setup on Linux'
+description: 'Installs dependencies and sets env variables specific to Linux'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    edfault: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  extra-cache-key:
+    description: 'Extra cache key to use in the cache name. Useful when several caches are used in one workflow.'
+    default: ''
+  gcc-version:
+    description: 'Can be empty, in which case CC and CXX are not overriden'
+    default: ''
+  gtest:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  libxml2:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  libyuv:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  oldest-cmake:
+    description: 'Can take the values: true, false'
+    default: 'false'
+outputs:
+  ext-cache-hit:
+    value: ${{ steps.cache.outputs.ext-cache-hit }}
+runs:
+  using: "composite"
+  steps:
+    - name: Install non-library dependencies
+      run: |
+        sudo apt update -y
+        sudo apt install -y imagemagick libjpeg-turbo8-dev libpng-dev
+      shell: bash
+    - name: Install libaom library
+      if: ${{ inputs.codec-aom == 'SYSTEM' }}
+      run:
+        sudo apt install -y libaom-dev
+      shell: bash
+    - name: Install libdav1d library
+      if: ${{ inputs.codec-dav1d == 'SYSTEM' }}
+      run:
+        sudo apt install -y libdav1d-dev
+      shell: bash
+    - name: Install rav1e library
+      if: ${{ inputs.codec-rav1e == 'SYSTEM' }}
+      run:
+        sudo apt install -y librav1e-dev
+      shell: bash
+    - name: Install libxml2 library
+      if: ${{ inputs.libxml2 == 'SYSTEM' }}
+      run:
+        sudo apt install -y libxml2
+      shell: bash
+    - name: Install libyuv library
+      if: ${{ inputs.libyuv == 'SYSTEM' }}
+      run:
+        sudo apt install -y libyuv-dev
+      shell: bash
+    - name: Set up meson
+      if: ${{ inputs.codec-dav1d == 'LOCAL' }}
+      run:
+        sudo apt install -y meson
+      shell: bash
+    - name: Set up gtest
+      if: ${{ inputs.gtest == 'SYSTEM' }}
+      run:
+        sudo apt install -y libgtest-dev
+      shell: bash
+
+    - uses: ./.github/actions/setup-common
+      with:
+        codec-aom: ${{ inputs.codec-aom }}
+        codec-dav1d: ${{ inputs.codec-dav1d }}
+        codec-rav1e: ${{ inputs.codec-rav1e }}
+        oldest-cmake: ${{ inputs.oldest-cmake }}
+    - uses: ./.github/actions/cache
+      id: cache
+      with:
+        extra-key: ${{ inputs.extra-cache-key }}
+        use-meson: ${{ inputs.codec-dav1d == 'LOCAL' }}
+        use-rust: ${{ inputs.codec-rav1e == 'LOCAL' }}
+
+    - name: Set GCC & G++ compiler
+      if: ${{ inputs.gcc-version != '' }}
+      run: echo "CC=gcc-${{ inputs.gcc-version }}" >> $GITHUB_ENV && echo "CXX=g++-${{ inputs.gcc-version }}" >> $GITHUB_ENV
+      shell: bash

.github/actions/setup-macos/action.yml

@@ -0,0 +1,67 @@
+name: 'Setup on macOS'
+description: 'Installs dependencies specific to macOS'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  gtest:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  extra-cache-key:
+    description: 'Extra cache key to use in the cache name. Useful when several caches are used in one workflow.'
+    default: ''
+outputs:
+  ext-cache-hit:
+    value: ${{ steps.cache.outputs.ext-cache-hit }}
+runs:
+  using: "composite"
+  steps:
+    # github actions overwrites brew's python. Force it to reassert itself, by running in a separate step.
+    # Borrowed from https://github.com/mesonbuild/meson/blob/aab2533ab4f7f4c16991620b400d71782f89be1c/.github/workflows/macos.yml#L87-L92
+    # until https://github.com/actions/setup-python/issues/577 is fixed.
+    - name: unbreak python in github actions
+      run: |
+        find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/2to3*' \
+          -o -lname '*/Library/Frameworks/Python.framework/idle3*' \
+          -o -lname '*/Library/Frameworks/Python.framework/pydoc3*' \
+          -o -lname '*/Library/Frameworks/Python.framework/python3*' -delete
+        sudo rm -rf /Library/Frameworks/Python.framework/
+        brew install --force python3 && brew unlink python3 && brew unlink python3 && brew link --overwrite python3
+      shell: bash
+    - name: Install non-library dependencies
+      run: brew install imagemagick
+      shell: bash
+    - name: Install AOM library
+      if: ${{ inputs.codec-aom == 'SYSTEM' }}
+      run: brew install aom
+      shell: bash
+    - name: Install dav1d library
+      if: ${{ inputs.codec-dav1d == 'SYSTEM' }}
+      run: brew install dav1d
+      shell: bash
+    - name: Set up meson
+      if: ${{ inputs.codec-dav1d == 'LOCAL' }}
+      run: brew install meson
+      shell: bash
+    - name: Set up gtest
+      if: ${{ inputs.gtest == 'SYSTEM' }}
+      run: brew install googletest
+      shell: bash
+
+    - uses: ./.github/actions/setup-common
+      with:
+        codec-aom: ${{ inputs.codec-aom }}
+        codec-dav1d: ${{ inputs.codec-dav1d }}
+        codec-rav1e: ${{ inputs.codec-rav1e }}
+    - uses: ./.github/actions/cache
+      id: cache
+      with:
+        extra-key: ${{ inputs.extra-cache-key }}
+        use-meson: ${{ inputs.codec-dav1d == 'LOCAL' }}
+        use-rust: ${{ inputs.codec-rav1e == 'LOCAL' }}

.github/actions/setup-windows/action.yml

@@ -0,0 +1,39 @@
+name: 'Setup on Windows'
+description: 'Installs dependencies specific to Windows'
+inputs:
+  codec-aom:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-dav1d:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  codec-rav1e:
+    description: 'Can take the values: OFF, LOCAL, SYSTEM'
+    default: 'OFF'
+  extra-cache-key:
+    description: 'Extra cache key to use in the cache name. Useful when several caches are used in one workflow.'
+    default: ''
+outputs:
+  ext-cache-hit:
+    value: ${{ steps.cache.outputs.ext-cache-hit }}
+runs:
+  using: "composite"
+  steps:
+    - name: Setup Developer Command Prompt for Microsoft Visual C++
+      uses: ilammy/msvc-dev-cmd@v1
+    - name: Set up meson
+      if: ${{ inputs.codec-dav1d == 'LOCAL' }}
+      run: pip install meson
+      shell: bash
+
+    - uses: ./.github/actions/setup-common
+      with:
+        codec-aom: ${{ inputs.codec-aom }}
+        codec-dav1d: ${{ inputs.codec-dav1d }}
+        codec-rav1e: ${{ inputs.codec-rav1e }}
+    - uses: ./.github/actions/cache
+      id: cache
+      with:
+        extra-key: ${{ inputs.extra-cache-key }}
+        use-meson: ${{ inputs.codec-dav1d == 'LOCAL' }}
+        use-rust: ${{ inputs.codec-rav1e == 'LOCAL' }}

.github/dependabot.yml

@@ -0,0 +1,15 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    groups:
+      github-actions:
+        patterns:
+          - "*"