基于Platinum库的DMR实现（android）

本例所采用的upnp框架是Platinum SDK

官方网址是http://www.plutinosoft.com/platinum 

该库是一个跨平台的C++库，利用该库，可以很容易就构建出DLNA/UPnP控制点 (DLNA/UPnP Control Point)和DLNA/UPnP设备(DLNA/UPnP Device)，其中包括有UPnP AV Media Server, Media Render & Control Point的例子 

该库稳定强大，被很多知名产品所沿用，口碑较好自然也为楼主所青睐

关于该库如何编译，请参考这篇博文：NDK下 将Platinum SDK 编译成so库 

下面给出运行效果图：

JNI接口文件：

public class PlatinumJniProxy {

    static {
        System.loadLibrary("git-platinum");
    }

    public static native int startMediaRender(byte[] friendname ,byte[] uuid);
    public static native int stopMediaRender();
    public static native boolean responseGenaEvent(int cmd, byte[] value ,byte[] data);
    public static native boolean enableLogPrint(boolean flag);


    public static  int startMediaRender(String friendname ,String uuid){
        if (friendname == null)friendname = "";
        if (uuid == null)uuid = "";
        int ret = -1;
        try {
            ret = startMediaRender(friendname.getBytes("utf-8"), uuid.getBytes("utf-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return ret;
    }

    public static  boolean responseGenaEvent(int cmd, String value, String data){
        if (value == null)value = "";
        if (data == null)data = "";
        boolean ret = false;
        try {
            ret = responseGenaEvent(cmd, value.getBytes("utf-8"), data.getBytes("utf-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return ret;
    }


}

反射类：

public class PlatinumReflection {

    private static final CommonLog log = LogFactory.createLog();

    private static final int MEDIA_RENDER_CTL_MSG_BASE = 0x100;
    /*----------------------------------------------------------------*/
    public static final int MEDIA_RENDER_CTL_MSG_SET_AV_URL = (MEDIA_RENDER_CTL_MSG_BASE+0);
    public static final int MEDIA_RENDER_CTL_MSG_STOP = (MEDIA_RENDER_CTL_MSG_BASE+1);
    public static final int MEDIA_RENDER_CTL_MSG_PLAY = (MEDIA_RENDER_CTL_MSG_BASE+2);
    public static final int MEDIA_RENDER_CTL_MSG_PAUSE = (MEDIA_RENDER_CTL_MSG_BASE+3);
    public static final int MEDIA_RENDER_CTL_MSG_SEEK = (MEDIA_RENDER_CTL_MSG_BASE+4);
    public static final int MEDIA_RENDER_CTL_MSG_SETVOLUME = (MEDIA_RENDER_CTL_MSG_BASE+5);
    public static final int MEDIA_RENDER_CTL_MSG_SETMUTE = (MEDIA_RENDER_CTL_MSG_BASE+6);
    public static final int MEDIA_RENDER_CTL_MSG_SETPLAYMODE = (MEDIA_RENDER_CTL_MSG_BASE+7);
    public static final int MEDIA_RENDER_CTL_MSG_PRE = (MEDIA_RENDER_CTL_MSG_BASE+8);
    public static final int MEDIA_RENDER_CTL_MSG_NEXT = (MEDIA_RENDER_CTL_MSG_BASE+9);
    /*----------------------------------------------------------------*/



    /*----------------------------------------------------------------*/
    /*
     *
     *
     * */
    public static final int MEDIA_RENDER_TOCONTRPOINT_SET_MEDIA_DURATION = (MEDIA_RENDER_CTL_MSG_BASE+0);
    public static final int MEDIA_RENDER_TOCONTRPOINT_SET_MEDIA_POSITION = (MEDIA_RENDER_CTL_MSG_BASE+1);
    public static final int MEDIA_RENDER_TOCONTRPOINT_SET_MEDIA_PLAYINGSTATE = (MEDIA_RENDER_CTL_MSG_BASE+2);
    /*----------------------------------------------------------------*/
    public static final String RENDERER_TOCONTRPOINT_CMD_INTENT_NAME="com.geniusgithub.platinum.tocontrolpointer.cmd.intent";
    public static final String GET_RENDERER_TOCONTRPOINT_CMD="get_dlna_renderer_tocontrolpointer.cmd";
    public static final String GET_PARAM_MEDIA_DURATION="get_param_media_duration";
    public static final String GET_PARAM_MEDIA_POSITION="get_param_media_position";
    public static final String GET_PARAM_MEDIA_PLAYINGSTATE="get_param_media_playingstate";
    /*----------------------------------------------------------------*/


    public static final String MEDIA_PLAYINGSTATE_STOP="STOPPED";
    public static final String MEDIA_PLAYINGSTATE_PAUSE="PAUSED_PLAYBACK";
    public static final String MEDIA_PLAYINGSTATE_PLAYING="PLAYING";
    public static final String MEDIA_PLAYINGSTATE_TRANSTION="TRANSITIONING";
    public static final String MEDIA_PLAYINGSTATE_NOMEDIA="NO_MEDIA_PRESENT";

    /*----------------------------------------------------------------*/
    public static final String MEDIA_SEEK_TIME_TYPE_REL_TIME="REL_TIME";
    public static final String MEDIA_SEEK_TIME_TYPE_TRACK_NR="TRACK_NR";


    public static interface ActionReflectionListener{
        public void onActionInvoke(int cmd,String value,String data);
    }

    private static ActionReflectionListener mListener;


    public static void onActionReflection(int cmd,String value,String data){
        if (mListener != null){
            mListener.onActionInvoke(cmd, value, data);
        }
    }

    public static void setActionInvokeListener(ActionReflectionListener listener){
        mListener = listener;
    }
}

工作线程 DMRWorkThread

public class DMRWorkThread extends Thread implements IBaseEngine{


    private static final CommonLog log = LogFactory.createLog();

    private static final int CHECK_INTERVAL = 30 * 1000;

    private Context mContext = null;
    private boolean mStartSuccess = false;
    private boolean mExitFlag = false;

    private String mFriendName = "";
    private String mUUID = "";
    private RenderApplication mApplication;

    public DMRWorkThread(Context context){
        mContext = context;
        mApplication = RenderApplication.getInstance();
    }

    public void  setFlag(boolean flag){
        mStartSuccess = flag;
    }

    public void setParam(String friendName, String uuid){
        mFriendName = friendName;
        mUUID = uuid;
        mApplication.updateDevInfo(mFriendName, mUUID);
    }

    public void awakeThread(){
        synchronized (this) {
            notifyAll();
        }
    }

    public void exit(){
        mExitFlag = true;
        awakeThread();
    }

    @Override
    public void run() {

        log.e("DMRWorkThread run...");

        while(true)
        {
            if (mExitFlag){
                stopEngine();
                break;
            }
            refreshNotify();
            synchronized(this)
            {
                try
                {
                    wait(CHECK_INTERVAL);
                }
                catch(Exception e)
                {
                    e.printStackTrace();
                }
            }
            if (mExitFlag){
                stopEngine();
                break;
            }
        }

        log.e("DMRWorkThread over...");

    }

    public void refreshNotify(){
        if (!CommonUtil.checkNetworkState(mContext)){
            return ;
        }

        if (!mStartSuccess){
            stopEngine();
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            boolean ret = startEngine();
            if (ret){
                mStartSuccess = true;
            }
        }

    }

    @Override
    public boolean startEngine() {
        if (mFriendName.length() == 0){
            return false;
        }

        int ret = PlatinumJniProxy.startMediaRender(mFriendName, mUUID);
        boolean result = (ret == 0 ? true : false);
        mApplication.setDevStatus(result);
        return result;
    }

    @Override
    public boolean stopEngine() {
        PlatinumJniProxy.stopMediaRender();
        mApplication.setDevStatus(false);
        return true;
    }

    @Override
    public boolean restartEngine() {
        setFlag(false);
        awakeThread();
        return true;
    }

}

通过startMediaRender开启设备后就可以被外界所发现，控制点发送控制信息后

动作action的回调通过反射类PlatinumReflection的静态方法onActionReflection执行

GENA事件则通过PlatinumJniProxy类的responseGenaEvent传递

详情大家down code去了解吧

Github下载页：https://github.com/geniusgithub/MediaRender

DLNA开发文档链接：http://download.csdn.net/detail/geniuseoe2012/4969961