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• FFMPEG works in command line but not in exec(), it returns 127

  26 février 2015, par Felipe Schenone

  The command is

  ffmpeg -i path/to/video.avi path/to/video.mpg

  and it works fine from the command line. However, when I call it with PHPs exec(), the return value is 127, it doesn’t seem to detect FFMPEG. What am I doing wrong ? I’m in localhost and the safe mode is off, but I’m new to both FFMPEG and exec(), so it may be a noob mistake. Thanks in advance.

• Tweak reboot() so it works after a timeout due to flash blockers which can break the SWF object/embed DOM reference. Previously would complain about SWF removal, and abort.

  31 décembre 2012, par scottschiller

  m script/soundmanager2-jsmin.js m script/soundmanager2-nodebug-jsmin.js m script/soundmanager2-nodebug.js m script/soundmanager2.js Tweak reboot() so it works after a timeout due to flash blockers which can break the SWF object/embed DOM reference. Previously would complain about SWF removal, (...)

• Capturing snapshot works on one RTSP stream and fails on another

  29 mars 2012, par Saurabh Gandhi

  I am using the VLM feature (over telnet) of VLC to re-stream a live camera RTSP stream using VOD (video on demand). This provides me with two options of viewing the live stream :

  1. Original camera stream
  2. VOD stream generated using VLM

  Both these streams are working fine when viewed within VLC player. I would like to take a snapshot from both these streams whenever the user presses a key. So, I am using command-line vlc interface to grab a snapshot, the command for which is :

  • Snapshot from original camera stream (Case I)

  cvlc -V dummy --video-filter scene --scene-format jpeg --scene-prefix myscene --start-time=0 --stop-time=1 --scene-replace --scene-path /var/www/ <original camera="camera" stream="stream"> vlc://quit;
  
  </original>

  • Snapshot from VOD stream (Case II)

  cvlc -V dummy --video-filter scene --scene-format jpeg --scene-prefix myscene --start-time=0 --stop-time=1 --scene-replace --scene-path /var/www/ <vod stream="stream" generated="generated" using="using" vlm="vlm"> vlc://quit;
  
  </vod>

  Now, case I seems to work fine but case II does not work, in-spite of confirming that both the live streams are working fine. What could be the problem ?

  Here are the logs of VLC when case II is executed on command-line :

  saurabh@saurabh-Latitude-E5510:~/Desktop/html_trial$ cvlc -V dummy --video-filter scene --scene-format jpeg --scene-prefix myscene --start-time=0 --stop-time=1 --scene-replace --scene-path /var/www/ rtsp://10.17.1.150:5544/vid1 vlc://quit; 
  
  
  
  VLC media player 1.1.9 The Luggage (revision exported) 
  
  Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS") 
  
  Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE") 
  
  [0x97c684c] dummy interface: using the dummy interface module... 
  
  rc buffer underflow 
  
  rc buffer underflow 
  
  rc buffer underflow 
  
  rc buffer underflow 
  
  ^C[0x97be2ac] signals interface error: Caught Interrupt signal, exiting...

  Regards,

  Saurabh Gandhi