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• FFmpeg : method DESCRIBE failed - 404 not found

  17 avril 2018, par Trần Quốc Việt

  I trying to play RTSP stream from my IP camera by FFmpeg lib.

  Here is my code :

  const char  *filenameSrc = "rtsp://admin:Centic.vn2018@113.176.100.223/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif"; //Axis
  
  AVDictionary *options = NULL;
  
  av_dict_set(&options,"rtsp_flags","prefer_tcp",0);
  
  av_dict_set(&options,"stimeout","1000000",0);
  
  if ( avformat_open_input( &pFormatCtx, filenameSrc, NULL, &options ) != 0 ) {
  
          std::cout << "Open File Error 12" << std::endl;
  
          return -12;
  
      }

  I get this error :

  LBMixtureOfGaussians()
  
  [rtsp @ 0xf22bc0] method DESCRIBE failed: 404 Not Found
  
  Open File Error 12

  Someone can help me find the reason, thank in advance !

• 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

• Inserting SPS, PPS values using ffmpeg for a manifest file

  1er mai 2023, par Gatothgaj

  I have a bunch of ts segments captured from an RTSP stream coming from an Axis camera which does not have SPS/PPS parameters set.

  


  Because of this I am not able to play the ts segments.

  


  I get the following error when trying to play using ffplay.

  


  [NULL @ 0x109813830] non-existing PPS 0 referenced
[h264 @ 0x117f0a360] non-existing PPS 0 referenced
[h264 @ 0x117f0a360] decode_slice_header error
[h264 @ 0x117f0a360] no frame!


  


  Is there a way to recover the video by lets say inserting sprop-parameters (SPS/PPS) before every IDR frame ?

  


  Is there a way to recover these ts segments ? How can I add SPS/PPS before every IDR ?

  


  I tried to do that with gstreamer as well but no luck.

  


  gst-launch-1.0 filesrc location=0.ts ! tsdemux name=demux demux. ! \
 h264parse config-interval=-1 ! mpegtsmux name=mux ! filesink location=0_gstfix.ts demux. ! mux.


  


  Thanks a lot for your help !