cmake: add support for triplet x64-mingw-static (Vita3K#15)

* cmake: add support for triplet x64-mingw-static

* rename build to mingw

Author: oltolm

.github/workflows/build.yml

@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
 name: C/C++ CI
 
 on: [push]
@@ -24,6 +25,12 @@ jobs:
             triplet: win-llvm-static-release
             vcpkg-root: C:\vcpkg
             extra-args: --overlay-triplets=./triplets
+          - build: mingw
+            os: windows-latest
+            triplet: mingw-static
+            vcpkg-root: C:\vcpkg
+            arch: x64
+            extra-args: ""
           - build: macos
             os: macos-latest
             triplet: osx-release
@@ -37,6 +44,17 @@ jobs:
             extra-args: --overlay-triplets=./triplets
 
     steps:
+      - run: git config --global core.autocrlf input
+      - uses: msys2/setup-msys2@v2
+        id: msys2
+        with:
+          msystem: CLANG64
+          update: true
+          pacboy: >-
+            toolchain:p
+            cmake:p
+            ninja:p
+        if: matrix.triplet == 'mingw-static'
       - uses: actions/checkout@v4
 
       - name: Set up build environment (macos-latest)
@@ -65,7 +83,15 @@ jobs:
 
       - name: Build ffmpeg
         run: |
-          vcpkg ${{ matrix.extra-args }} install ffmpeg[avcodec,avfilter,avdevice,avformat,swresample,swscale]:${{ matrix.arch }}-${{ matrix.triplet }}
+            vcpkg ${{ matrix.extra-args }} install ffmpeg[avcodec,avfilter,avdevice,avformat,swresample,swscale]:${{ matrix.arch }}-${{ matrix.triplet }}
+        if: matrix.triplet != 'mingw-static'
+
+      - name: Build ffmpeg (x64-mingw-static)
+        shell: msys2 {0}
+        run: |
+            export PATH=$(cygpath '${{ matrix.vcpkg-root }}'):$PATH
+            vcpkg ${{ matrix.extra-args }} install ffmpeg[avcodec,avfilter,avdevice,avformat,swresample,swscale]:${{ matrix.arch }}-${{ matrix.triplet }}
+        if: matrix.triplet == 'mingw-static'
 
       - uses: actions/upload-artifact@v4
         with:

CMakeLists.txt

@@ -13,6 +13,8 @@ elseif (APPLE)
 	set(FFMPEG_PREBUILTS_NAME "ffmpeg-macos")
 elseif (UNIX)
 	set(FFMPEG_PREBUILTS_NAME "ffmpeg-linux")
+elseif (MINGW)
+	set(FFMPEG_PREBUILTS_NAME "ffmpeg-mingw")
 else ()
 	message(FATAL_ERROR "Unsupported OS.")
 endif ()
@@ -76,4 +78,4 @@ target_link_libraries(${FFMPEG_CORE_NAME} INTERFACE
 	"${CMAKE_BINARY_DIR}/external/ffmpeg/lib/${LIB_PREFIX}swscale.${LIB_EXT}"
 	"${CMAKE_BINARY_DIR}/external/ffmpeg/lib/${LIB_PREFIX}avutil.${LIB_EXT}"
 	"${CMAKE_BINARY_DIR}/external/ffmpeg/lib/${LIB_PREFIX}avfilter.${LIB_EXT}"
-	"${CMAKE_BINARY_DIR}/external/ffmpeg/lib/${LIB_PREFIX}swresample.${LIB_EXT}")
+	"${CMAKE_BINARY_DIR}/external/ffmpeg/lib/${LIB_PREFIX}swresample.${LIB_EXT}")