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适配官网版 VLC:静态链接 libvpx 去掉运行时 DLL 依赖
原本插件 DLL 动态链接 libvpx-1.dll(以及静态 libvpx 会引入的 libgcc/
libwinpthread)。MSYS2 版 VLC 因这些 DLL 在 PATH 上能加载,但官网版 VLC
不自带,LoadLibrary 缺依赖而静默失败、插件不被识别。
- CMakeLists: 新增 USM_STATIC_VPX 选项(Windows 默认 ON),强制找到静态
libvpx.a 链接;并 -static-libgcc + 静态链接 winpthread,使最终 DLL 仅依赖
libvlccore.dll 和系统库
- README: 说明 Windows 默认静态链接、官网版/ MSYS2 版均可加载
已实测:官网版 VLC 3.0.23 GUI 下加载 usm demux、libvpx 探针自动选 key、
avcodec 解码 VP9、direct3d11 正常播放(exit 0)。1 parent 831ed9c commit cbf5eb0
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