本实例基于AVCodec能力，提供基于视频编解码的视频播放和录制的功能。
XComponent控件常用于相机预览流的显示和游戏画面的绘制,在HarmonyOS上，可以配合Native Window创建OpenGL开发环境，并最终将OpenGL绘制的图形显示到XComponent控件。
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