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• Android IP Camera

  23 décembre 2014, par CptCattivo

  I’m looking for a good working solution to integrate an IP-Cameras video stream in my Android App. At the moment i am using the "Axis P1214-E" which has a good image quality, but i couldn’t get a "LIVE" stream from it. Either the stream is very laggy or it’s a few seconds delayed (sometimes even more) or the stream is shutting down after awhile. What i tried so far :

  • Using a SurfaceView to get the MJPEG Stream as described in this post : Android and MJPEG
    Problem : Lagging

  • Using a WebView to get the RTSP stream :

  public class MainActivity extends Activity {
  
  
  
          private static final String TAG = "VideoViewExample.MainActivity";
  
          private static final String RTSP_URL = "rtsp://ip/axis-media/media.amp"; 
  
          
  
          
  
          private VideoView videoView;
  
          private MediaController mediaController;
  
  
  
          private OnPreparedListener opl;
  
  
  
          private int position = 0;
  
  
  
          
  
      @Override
  
      protected void onCreate(Bundle savedInstanceState) {
  
          super.onCreate(savedInstanceState);
  
          setContentView(R.layout.activity_main);
  
          
  
          if(savedInstanceState != null)
  
              position = savedInstanceState.getInt("POSITION");
  
          
  
          
  
          videoView = (VideoView) findViewById(R.id.videoView);        
  
        
  
          
  
          opl = new OnPreparedListener() {
  
                          
  
                          @Override
  
                          public void onPrepared(MediaPlayer mp) {
  
                                                                  
  
                                  videoView.seekTo(position);
  
                                  
  
                                  if (position == 0) {
  
                                          videoView.start();
  
                                  }
  
                                  else {
  
                                          
  
                                          videoView.pause();
  
                                  }                                
  
                          }
  
                  };
  
          
  
          if (mediaController == null){
  
                  mediaController = new MediaController(this);
  
          }
  
          
  
          mediaController.setAnchorView(videoView);
  
          
  
          AsyncTask at = new AsyncTask() {
  
  
  
                          @Override
  
                          protected Void doInBackground(Void... params) {
  
                                  try{
  
                                  videoView.setMediaController(mediaController);                            
  
                              videoView.setVideoURI(Uri.parse(RTSP_URL));
  
                          } catch (Exception e) {
  
                                  Log.d(TAG, e.getMessage());
  
                          }
  
                                  
  
                          videoView.requestFocus();
  
                          videoView.setOnPreparedListener(opl);                        
  
                          
  
                                  return null;
  
                          }
  
                  
  
                  };
  
          at.execute();
  
           
  
      }
  
      
  
      @Override
  
      protected void onPause() {
  
          position = videoView.getCurrentPosition();
  
          super.onPause();
  
      }
  
      
  
      @Override
  
      public void onSaveInstanceState(Bundle outState) {
  
              
  
              super.onSaveInstanceState(outState);
  
              outState.putInt("POSITION", position);      
  
          
  
      }
  
  
  
  }

  Problem : Good video Quality, but delayed.

  • Using external frameworks like FFMPEG and GSTREAMER (Only some examples so far)
    Problem : Also very laggy and/or delayed.

  Now i’m running out of ideas to get this working. It’s very important for my Application that the stream is live and not lagging.
  I’m developing on a "Banana Pi" board with Android 4.2.2 (4.4 is possible as well).

  Does anybody know how to get this working ? Or maybe should i use an other camera ? Do you have any suggestions that would work well with android ?

  Thanks in advance

  Christian

• ffmpeg best settings for youtube live

  24 mars 2023, par Mariano

  I have this settings for ffmpeg

  


  ffmpeg -f lavfi -i anullsrc -rtsp_transport tcp -i "rtsp://" -c:v libx264 -b:a 384k -ac 2 -preset slow -crf 18 -profile:v high -bf 2 -pix_fmt yuv420p -movflags +faststart -threads 4 -cpu-used 0 -b:v 5M -r 30 -g 15 -coder 1 -f flv "rtmp://a.rtmp.youtube.com/live2/"


  


  but the quality and speed is not very good,
could some one tell me what at the best settings

  


  thanks

  


• How to write Video Cutter (native trimmer) [on hold]

  22 juillet 2019, par Gurbela

  I want to write a Video Cutter for React Native. The goal is to choose the time interval from the video and cut it out. For example : 1 minute cut out of 10 minute video. Also I’ll be able to rewind the video according to the frames.What is the correct way to solve this problem ?

  I want to write it myself and not use any Package.

  Should I write it separately ? for Android - Java and iOS -swift ? Which is the good way ?