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• Cannot open connection tcp ://localhost:1935 when to set up custom RTMP stream

  8 janvier 2021, par showkey

  My simple network is as following :

  


  192.168.31.52 is my local pc 
192.168.31.251 is an ip camera.


  


  I can open the stream rtsp://192.168.31.251/cam/realmonitor?channel=1&subtype=0 with SMPlayer.
  
Build my nginx for customizing RTMP stream this way.

  


  sudo apt update
sudo apt install build-essential git
sudo apt install libpcre3-dev libssl-dev zlib1g-dev 
git clone https://github.com/arut/nginx-rtmp-module.git
git clone https://github.com/nginx/nginx.git
cd nginx
./auto/configure --add-module=../nginx-rtmp-module
make
sudo make install


  


  Set config file for nginx :

  


  sudo vim /usr/local/nginx/conf/nginx.conf
rtmp { 
    server { 
        listen 1935; 
        application live { 
            live on; 
            interleave on;
 
            hls on; 
            hls_path /tmp/hls; 
            hls_fragment 15s; 
        } 
    } 
} 


  


  Then set permission for nginx :

  


  mkdir /tmp/hls
sudo chmod -R 755  /tmp/hls
sudo chown -R www-data:www-data  /tmp/hls


  


  Edit index.html in /tmp/hls.

  


  <p>test for nginx</p>&#xA;

  


  Both 127.0.0.1/index.html and 192.168.31.52/index.html can open the /tmp/hls/index.html.

  


  Now open port 1935 on my network :

  


  sudo firewall-cmd --zone=public --add-port=1935/tcp --permanent
sudo firewall-cmd --reload 
sudo firewall-cmd --list-ports | grep 1935
1935/tcp


  


  Start nginx :

  


  sudo systemctl start nginx


  


  Up stream the rtsp stream from ip camera—192.168.31.251 to local pc —192.168.31.52.

  


  input="rtsp://192.168.31.251/cam/realmonitor?channel=1&subtype=0"
output="rtmp://192.168.31.52:1935/live/sample"
ffmpeg -i $input -acodec aac -strict experimental -ar 44100 -ac 2 -b:a 96k -r 25 -b:v 500k -s 640*480 -f flv $output


  


  It encounter the following errors :

  


  [tcp @ 0x59fb700] Connection to tcp://192.168.31.52:1935 failed: Connection refused
[rtmp @ 0x59fc5c0] Cannot open connection tcp://192.168.31.52:1935
rtmp://192.168.31.52:1935/live/sample: Connection refused


  


  How can fix it ?

  


• allow configuration of imageSmoothingQuality. default is "low", othe…

  9 avril 2021, par redemption

  allow configuration of imageSmoothingQuality.  default is "low", other options are "medium" and "high".
  Usage :
  $(’#fileupload’).fileupload(
  
  disableImageResize : /Android(?!.*Chrome)|Opera/
  
  						.test(window.navigator && navigator.userAgent),
  
  				imageSmoothingQuality : ’medium’,
  
  
  

• sh : /usr/bin/ffmpeg : not found

  22 janvier 2016, par Rio

  I’m trying to execute ffmpeg from PHP using shell_exec or exec but it fails. Why can this be ? The command /usr/bin/ffmpeg works from the terminal, so I tried

  <?php
  
  $cmd = "/usr/bin/ffmpeg";
  
  exec($cmd." 2>&1", $out, $ret);
  
  if ($ret){
  
      echo "There was a problem!\n";
  
      print_r($out);
  
  }else{
  
      echo "Everything went better than expected!\n";
  
  }
  
  ?>

  and I keep on getting

  There was a problem! Array ( [0] => sh: /usr/bin/ffmpeg: not found )

  Any help would be greatly appreciated.

  Permission on the executable are

  -rwxr-xr-x  1 root   root      106552 Jun 12 09:53 ffmpeg

  Running which /usr/local/bin/ffmpeg into $cmd returns an empty Array.