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• SWAY at RFWS using Coviu

  14 février 2016, par silvia

  A SWAY session by Joanne of Royal Far West School. http://sway.org.au/ via https://coviu.com/ SWAY is an oral language and literacy program based on Aboriginal knowledge, culture and stories. It has been developed by Educators, Aboriginal Education Officers and Speech Pathologists at the Royal Far West School in Manly, NSW.

  Category : Array
  Uploaded by : Silvia Pfeiffer
  Hosted : youtube

• Stream low latency RTSP video to android with ffmpeg

  21 octobre 2014, par grzebyk

  I am trying to stream live webcam video from Ubuntu 12.04 PC to android device with KitKat. So far I’ve written ffserver config file to receive ffm feed and broadcast it through a rtsp protocol. I am able to watch the stream on the other computer in the same LAN with ffplay.

  How to watch the stream on the android device ? The following code works well when the webcam image is streamed with vlc but it doesn’t with ffmpeg :

  public class MainActivity extends Activity implements MediaPlayer.OnPreparedListener,
  
          SurfaceHolder.Callback {
  
  
  
      final static String RTSP_URL = "rtsp://192.168.1.54:4424/test.sdp";
  
  
  
      private MediaPlayer _mediaPlayer;
  
      private SurfaceHolder _surfaceHolder;
  
  
  
      @Override
  
      protected void onCreate(Bundle savedInstanceState) {
  
          super.onCreate(savedInstanceState);
  
          // Set up a full-screen black window.
  
          requestWindowFeature(Window.FEATURE_NO_TITLE);
  
          Window window = getWindow();
  
          window.setFlags(
  
                  WindowManager.LayoutParams.FLAG_FULLSCREEN,
  
                  WindowManager.LayoutParams.FLAG_FULLSCREEN);
  
          window.setBackgroundDrawableResource(android.R.color.black);
  
          getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
  
          setContentView(R.layout.activity_main);
  
  
  
          // Configure the view that renders live video.
  
          SurfaceView videoView =
  
                  (SurfaceView) findViewById(R.id.videoView); //where R.id.videoView is a simple SurfaceView element in the layout xml file
  
          _surfaceHolder = videoView.getHolder();
  
          _surfaceHolder.addCallback(this);
  
          _surfaceHolder.setFixedSize(320, 240);
  
      }
  
      @Override
  
      public void surfaceCreated(SurfaceHolder surfaceHolder) {
  
          _mediaPlayer = new MediaPlayer();
  
          _mediaPlayer.setDisplay(_surfaceHolder);
  
          Context context = getApplicationContext();
  
          Uri source = Uri.parse(RTSP_URL);
  
          try {
  
              // Specify the IP camera's URL and auth headers.
  
              _mediaPlayer.setDataSource(context, source);
  
  
  
              // Begin the process of setting up a video stream.
  
              _mediaPlayer.setOnPreparedListener(this);
  
              _mediaPlayer.prepareAsync();
  
          }
  
          catch (Exception e) {}
  
      }
  
      @Override
  
      public void onPrepared(MediaPlayer mediaPlayer) {
  
          _mediaPlayer.start();
  
      }
  
  }

  My ffserver.config file :

  HTTPPort 8090
  
  RTSPBindAddress 0.0.0.0
  
  RTSPPort 4424
  
  MaxBandwidth 10000
  
  CustomLog -
  
  
  
  <feed>
  
          File /tmp/feed1.ffm
  
          FileMaxSize 20M
  
          ACL allow 127.0.0.1
  
  </feed>
  
  <stream>
  
      Feed feed1.ffm
  
      Format rtp  
  
      VideoCodec libx264
  
      VideoSize 640x480
  
      AVOptionVideo flags +global_header
  
      AVOptionVideo me_range 16
  
      AVOptionVideo qdiff 4
  
      AVOptionVideo qmin 10
  
      AVOptionVideo qmax 51
  
      Noaudio
  
      ACL allow localhost
  
          ACL allow 192.168.0.0 192.168.255.255
  
  </stream>

  I am starting the stream with this command : ffmpeg -f v4l2 -i /dev/video0 -c:v libx264 -b:v 600k http://localhost:8090/feed1.ffm

• Heroku : [Errno 13] Permission Denied : /app/ffmpeg.exe

  4 mars 2021, par GetTwoBirdsStonedAtOnce

  So I made a python bot and I wanted to equip it with the ability to play music. I have been following this tutorial.

  


  Unfortunately when I run the play command I get the [Errno 13] Permission Denied: /app/ffmpeg.exe error. I have included the ffmpeg.exe file in my project branch as well as all of the ffmpeg files. I host this bot on heroku. I ran heroku logs --tail but this doesn't show me anything, I see the error as the output on a discord channel. Before you suggest it, I already have ran this : heroku config:set DISABLE_COLLECTSTATIC = 1. Of course to no avail... Here's the fragment of my code where I point to the ffmpeg.exe file :
return cls(discord.FFmpegPCMAudio(executable="/app/ffmpeg.exe", source = source), data=data, requester=ctx.author)

  


  Rest of the code is irrelevant as this is the only part that makes impact on the end result. Hope you can help me, cheers !