update build yaml

.github/workflows/build.yml

@@ -87,20 +87,8 @@ jobs:
       # ── Windows dependencies ──
       - name: Install dependencies (Windows)
         if: matrix.platform == 'windows-latest'
-        run: choco install nasm cmake --installargs 'ADD_CMAKE_TO_PATH=System' -y
         shell: pwsh
-
-      - name: Setup MSVC dev environment (Windows)
-        if: matrix.platform == 'windows-latest'
-        uses: ilammy/msvc-dev-cmd@v1
-
-      - name: Add MSYS2 to PATH (Windows)
-        if: matrix.platform == 'windows-latest'
-        shell: pwsh
-        run: |
-          # Rename MSYS2's link.exe so it doesn't shadow MSVC's linker
-          Rename-Item "C:\msys64\usr\bin\link.exe" "C:\msys64\usr\bin\link.exe.bak" -ErrorAction SilentlyContinue
-          echo "C:\msys64\usr\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        run: choco install cmake llvm --installargs 'ADD_CMAKE_TO_PATH=System' -y
 
       # ── Common build steps ──
       - name: Extract version
@@ -110,11 +98,25 @@ jobs:
           VERSION=$(grep '^version' lightningbeam-ui/lightningbeam-editor/Cargo.toml | sed 's/.*"\(.*\)"/\1/')
           echo "version=$VERSION" >> "$GITHUB_OUTPUT"
 
-      - name: Enable FFmpeg build from source
+      - name: Enable FFmpeg build from source (Linux/macOS)
+        if: matrix.platform != 'windows-latest'
         shell: bash
         run: |
           sed -i.bak 's/ffmpeg-next = { version = "8.0", features = \["static"\] }/ffmpeg-next = { version = "8.0", features = ["build", "static"] }/' lightningbeam-ui/lightningbeam-editor/Cargo.toml
 
+      - name: Setup FFmpeg (Windows)
+        if: matrix.platform == 'windows-latest'
+        shell: pwsh
+        run: |
+          # Download FFmpeg 8.0 shared+dev build (headers + import libs + DLLs)
+          $url = "https://github.com/GyanD/codexffmpeg/releases/download/8.0/ffmpeg-8.0-full_build-shared.7z"
+          Invoke-WebRequest -Uri $url -OutFile ffmpeg.7z
+          7z x ffmpeg.7z -offmpeg-win
+          $ffmpegDir = (Get-ChildItem -Path ffmpeg-win -Directory | Select-Object -First 1).FullName
+          echo "FFMPEG_DIR=$ffmpegDir" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          # LLVM/libclang for bindgen
+          echo "LIBCLANG_PATH=C:\Program Files\LLVM\bin" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+
       - name: Setup icons
         shell: bash
         run: |
@@ -348,6 +350,8 @@ jobs:
           New-Item -ItemType Directory -Force -Path $DIST
           Copy-Item "lightningbeam-ui/target/release/lightningbeam-editor.exe" "$DIST/"
           Copy-Item -Recurse "lightningbeam-ui/target/release/presets" "$DIST/presets"
+          # Bundle FFmpeg DLLs (shared build)
+          Copy-Item "$env:FFMPEG_DIR\bin\*.dll" "$DIST/"
           Compress-Archive -Path $DIST -DestinationPath "${DIST}.zip"
 
       - name: Collect Windows artifacts