About multi-threads app port to android platform with SDL1.3

I have developed a RTSP stream media player and it use the SDL as the render layer. Now I want to port this media player to android platform by using SDL1.3, But failed because my app has multi threads(data receive thread, video decode thread, etc.) created by SDL_CreateThread. The log info always show:" non-VM thread making JNI calls". how to solve this problem. THANKS!