不支持的媒体格式＆＃39; video / mpeg-1＆＃39;，url =＆＃39; null＆＃39;

Question

我试图在java ME 3.5 sdk模拟器上显示视频，但我不断获得不支持的媒体格式＆＃39; video / mpeg-1＆＃39;，url =＆＃39; null＆＃39;例外。 我还尝试将'video/mpeg-1'更改为'video/mpeg'，但它仍然无法正常工作。但是，当我在Wireless toolkit 2.5模拟器上吃午餐时，它工作正常！

   public void startApp() {
    try {
        if (error) {
            return;
        }
        //display.setCurrent(list);
        loadPlayer();
        VideoControl videoControl = (VideoControl) player.getControl("javax.microedition.media.control.VideoControl");
        if (videoControl == null) {
            throw new Exception("No VideoControl!!");
        }
        videoControl.initDisplayMode(VideoControl.USE_DIRECT_VIDEO, canvas);
        videoControl.setDisplayFullScreen(true);
        videoControl.setVisible(true);
        display.setCurrent(canvas);
        player.start();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}


private void loadPlayer() throws Exception {
    player = Manager.createPlayer(getClass().getResourceAsStream("/1.mpg"), "video/mpeg-1");
    player.realize();
}