How do you Fullscreen RTSP Stream in Android LibVLC?

Question

I'm using mrmaffen's VLC-ANDROID-SDK to develop an RTSP streaming app. https://github.com/mrmaffen/vlc-android-sdk

I've had a lot of success getting it working and running quite well, but the problem I'm having that I can't seem to shake is getting it to display the video feed in fullscreen on the SurfaceView, or even just in the center of the SurfaceView.

This is what I get:

http://s1378.photobucket.com/user/Jo_Han_Solo/media/Screenshot_20171214-125504_zps437k1kw2.png.html?filters[user]=146993343&filters[recent]=1&sort=1&o=1

The black window is the total size of the screen, I want that video to fill the screen and hopefully always fill from center, but I can't figure out how to do it.

Anyone have any experience with anything like this and knows how to fix it?

Answer 1

I kind of solved the problem but in a bit of a dodgy way, it's far from complete but considering the lack of knowledge and information on the topic I thought this might help someone for the time being.

1. Find the size of your screen.
2. Set up your final IVLCOut to incorporate the screen size.
3. Adjust setScale to "fullscreen" the video stream.

To explain each task:

1. Setup your globals:

   public class SingleStreamView extends AppCompatActivity implements 
   IVLCVout.Callback {
   
   public int mHeight;
   public int mWidth;
   

Secondly, in the onCreate task find your screen sizes of your device:

    DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        mHeight = displayMetrics.heightPixels;
        mWidth = displayMetrics.widthPixels;

2. Then go down to your "CreatePlayer" event and where you set up your video output:

    // Set up video output
        final IVLCVout vout = mMediaPlayer.getVLCVout();
        vout.setVideoView(mSurface);
        vout.setWindowSize(mWidth,mHeight);
        vout.addCallback(this);
        vout.attachViews();

The winning line that made it center in my surface was the "vout.setWindowSize(mWidth,mHeight);"

Then I simply used the setscale option to "fullscreen" the video. That said, it's a bit of a hack way of doing it, and I would like to try and figure out a way to grab the codec information so to dynamically set the scale of the video and that way automatically fullscreen every size video stream to any size screen but for now this will work for known video stream resolutions, it will automatically adjust to the screen size of your phone.

Either way I found that with a Samsung Galaxy s8, a good scaling factor for a 640x480p RTSP stream was 1.8. Coded like so:

        Media m = new Media(libvlc, Uri.parse(RTSP_ADDRESS));
        m.setHWDecoderEnabled(true,false);
        m.addOption(":network-caching=100");
        m.addOption(":clock-jitter=0");
        m.addOption(":clock-synchro=0");
        m.addOption(":fullscreen");
        mMediaPlayer.setMedia(m);
        mMediaPlayer.setAspectRatio("16:9");
        mMediaPlayer.setScale(1.8f);
        mMediaPlayer.play();

Where you got "mMediaPlayer.setScale(1.8f);"

Hope this helps someone!