Encypt demo doesn't work(加密demo不正常)

[luozejiaqun]

I run the sample-video-encrypt demo, and find that the encryption method doesn't work properly. https://github.com/AgoraIO/Advanced-Video/blob/master/Android/sample-video-encrypt/src/main/cpp/packet_processing_plugin_jni.cpp#L121 The register method work properly(log has printed). https://github.com/AgoraIO/Advanced-Video/blob/master/Android/sample-video-encrypt/src/main/cpp/packet_processing_plugin_jni.cpp#L50 and https://github.com/AgoraIO/Advanced-Video/blob/master/Android/sample-video-encrypt/src/main/cpp/packet_processing_plugin_jni.cpp#L65 But the real encrypt method has not been invoked(log doesn't print). So what's the problem? 运行sample-video-encrypt demo发现注册方法成功调用（日志正常输出），但是实际加解密方法未被调用（日志未输出），这是什么情况？

[plutoless]

@luozejiaqun 这个仓库接下去会被归档，请参考 https://github.com/AgoraIO/API-Examples 中的自定义加解密示例 若API Example也无法正常工作，可以在那里开个新的issue