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• Facebook live video can only be previewed while streaming my Mac screen

  24 janvier 2017, par iownthegame

  I use the following ffmpeg command to share my screen streaming to Facebook.

  

  ffmpeg -f avfoundation -r 10 -video_size 352x288 -i "0" -c:v h264 -f flv 
  
  "rtmp://rtmp-api.facebook.com:80/rtmp/1269140699772419?ds=1&a=AaYsXcYcdHQrrrUF"

  then I can see the video preview scenes
  

  however, once I press the ’Go Live’ button, and go to my facebook page, I can find a post said I am Live Now. When I press the ’play button’, there are only black scenes that last for 1 2 seconds, and the video ends.

  

  And there is also a weird thing, the video can be played when I end up the live stream. When refreshing the page, I can find a post said I was Live, the video of this post can be played successfully.

  Anyone knows why the video can be watched when previewing and finishing live but not the exact live moment ?

  [updated]

  During the live streaming period, if I press the play button, there are only 1 2 seconds black scenes and the live stream ends.
  

  However if I press the video frame again, another modal pops up then I can see the live streaming. Is it a facebook bug ?
  

• Anomalie #3566 : Restaurer une révision ne restaure pas toujours tous les champs modifiés

  10 octobre 2016, par marcimat ☺☮☯♫

  On avance… le commit http://zone.spip.org/trac/spip-zone/changeset/99883 améliorera une fois la fonction utilisée.

  Cependant la première révision actuellement n’enregistre que la liaison auteur/article, et non l’ensemble des champs saisies.
  J’ai fini par comprendre que révisions se base sur ’post_insertion’ (qui a donc l’id_article créé) pour lever un flag permettant d’éviter de créer la première révision avant d’arriver dans post_edition.
  Bien. Sauf que… avant ’post_insertion’, l’appel de auteur_associer($id_auteur, array('article' => $id_article)); dans auteur_inserer() crée la première révision (le flag n’étant pas encore levé). Cette fonction appelant à un moment ’pre_edition_liens’, que le plugin Révisions écoute.

• Realtime recording while listening for input

  28 octobre 2016, par Nyalmo

  I’m currently running a python 2.7 script, using two threads running concurrently. One thread consistently looking for input (raw_input at the moment) activating a global variable when it gets one. The other consistently records using bash ffmpeg commands with subprocess. When the global variable of the former thread is active the latter thread triggers an event.

  My problem is that while the second thread is recording video from a stream, I can’t input anything and the breaks between recordings are really short. So basically it keeps recording for 30 seconds and overwriting itself without allowing me to activate the variable to save the current file somewhere.

  I’ve tried to run the ffmpeg in subprocess in the background by using the & and by hiding it’s output but did not have much success there.

  Can anyone help me with this, preferably with a small example ?

  My basic recording thread currently :

  from subprocess import Popen
  
  Last30S_Command = (["ffmpeg", "-i", "rtsp://admin:12345@192.168.25.179:554/Streaming/Channels/1", "-r", "30", "-vcodec", "copy", "-an", "-t", "30", "-y", "/Path/Last30S.mp4"])
  
  
  
  subprocess.call(Last30S_Command)