QT_NO_FFMPEG_XCODE_EMBED_FRAMEWORKS_CODE_SIGN_ON_COPY

禁用 iOS 上的 FFmpeg 代码签名。

当您将 FFmpeg 二进制文件嵌入到 iOS 应用程序包中时，qt_add_ios_ffmpeg_libraries()命令默认也会启用这些二进制文件的代码签名。若要避免此情况，请使用变量QT_NO_FFMPEG_XCODE_EMBED_FRAMEWORKS_CODE_SIGN_ON_COPY ：

set(QT_NO_FFMPEG_XCODE_EMBED_FRAMEWORKS_CODE_SIGN_ON_COPY ON)

注意：该 变量目前处于技术预览阶段，未来版本中可能会发生变化。

该变量于 Qt 6.8 中引入。

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