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• How do I correctly convert .avi to .flv with ffmpeg ? [closed]

  25 septembre 2012, par terbooter

  UPDATE
  Shame on me )
  I chacked red5 logs again and found that I placed converted files to wrong place.
  Now all works fine

  I have two red5 apps.

  1. Recorder. It can record live stream and save it to flv file to disk

     private void startRecord(String uid, String name, IConnection connection) {
     
         // Get a reference to the current broadcast stream.
     
         ClientBroadcastStream stream = (ClientBroadcastStream) this.getBroadcastStream(
     
                 connection.getScope(), name);
     
         try {
     
             // Save the stream to disk.
     
             String path = uid + "/" + name;
     
             stream.saveAs(path, true);
     
     
     
             System.out.println("file..:" + stream.getSaveFilename());
     
     
     
         } catch (Exception e) {
     
             System.out.println("Error while saving stream: " + name + e);
     
         }
     
     }
     
     
     
     private void stopRecord(String name) {
     
         IConnection conn = Red5.getConnectionLocal();
     
         System.out.println("Stop recording show for: {}" + conn.getScope().getContextPath());
     
     
     
         ClientBroadcastStream stream = (ClientBroadcastStream) this.getBroadcastStream(conn.getScope(), name);
     
         // Stop recording.
     
         if (stream != null) {
     
             stream.stopRecording();
     
         }
     
     }

  2. Second red5 app (Chat) streams recorded flv file to flash client

     public static String serverStreamCreate(String path, String streamName) {
     
     
     
         IServerStream serverStream = StreamUtils.createServerStream(Red5.getConnectionLocal().getScope(), streamName);
     
         SimplePlayItem item = SimplePlayItem.build(path);
     
     
     
         IPlaylistController controller = new MyPlayListController();
     
     
     
         serverStream.setPlaylistController(controller);
     
         serverStream.setRepeat(false);
     
         serverStream.addItem(item);
     
         serverStream.addItem(item);
     
         serverStream.start();
     
         return streamName;
     
     }

  If I record stream from flash client to flv file with Recorder and after that stream this flv file back to client with Chat, all works fine.

  Now I want to convert avi file to flv and stream it from red5 app to flash client.
  I used ffmpeg

  ffmpeg -i 24.avi -ar 22050 -an -f flv -b 500k -s 320x240 -y 24_c.flv

  But if I stream 24_c.flv from Chat app flash client have no video.
  24_c.flv cant be playd by VLC player and have same code information as flv file created by Recorder red5 app.

  I really dont know where to dig.

• Loading privacy policy file from RED5 server

  17 juillet 2013, par Yaron U.

  I have an IP camera that I need to connect to Flash/Air application (showing the stream),
  And then capturing data from the video into bitmap

  In order to do so I use RED5 server to serve the RTMP stream along with FFMPEG (to convert the camera's RTSP stream to RTMP)

  I made the conversion based on this very useful blog post

  Everything works fine (I can see the stream in the flash app) until I try to capture the video screen using BitmapData

  The error is about privacy policy file not loaded :

  Security sandbox violation: BitmapData.draw ... 
  
  cannot access rtmp://localhost:1935/live. No policy files granted access.
  
  ...

  Digging a little bit into RED5's config I see it has configurations for policy server on port 843 - but after luanching the server, it doesn't seem like it listens to this port
  and

  Any ideas ?

• ffmpeg settings or alternatives to ffmpeg on raspberry pi for video streaming

  14 octobre 2016, par andrei

  I have a Raspberry Pi (model B) running raspbian wheezy on a 16gb SD card. I also have a 32gb flash storage attached on the usb. I’m trying to stream a video (h264 encoded mp4 file 1280x720) over the ethernet from that flash storage.
  I’m using ffmpeg+ffserver. Here is ffserver.conf (relevant parts) :

  ...
  
  MaxBandwidth 10000
  
  <feed>
  
  ...
  
  FileMaxSize 100M
  
  ACL allow 127.0.0.1
  
  </feed>
  
  ...
  
  <stream>
  
  Feed feed1.ffm
  
  Format flv
  
  VideoSize 288x176 #made small just for testing
  
  NoAudio
  
  </stream>
  
  ....

  I start the ffserver, then call ffmpeg with this command :

  ffmpeg -re -an -i /mnt/u32/main.mp4 -r 25 -bit_rate 300k http://localhost:8090/feed1.ffm

  And I’m getting fps 3-5 at most. Naturally when I try to view the stream on another computer it’s very choppy and virtually unusable.

  Am I missing some settings ? Or perhaps there is another streaming solution that leverages the GPU instead of just the CPU as ffmpeg does ? I’m even open to suggestions about other boards (e.g. a pandaboard ? or clustering several RPi’s ?) Also, I’m flexible about the output format.