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• FFMpeg installation in Ubuntu 12.04 and using it in PHP-FFMpeg

  16 mai 2015, par SohelAhmedM

  I have tried many many failed attempt to install FFMpeg in my Ubuntu 12.04.
  I used following links : 1, 2, 3 and many others.

  Then I need to use it in PHP-FFMpeg
  And Then I need to deploy in Linux based server. This is my requirement.

  But after much trying, I just downloaded static build through this link.

  This helped me to successfully convert video and use FFMpeg through terminal in Ubuntu. But I cannot use it through PHP-FFMpeg library which I need to run. In docs of PHP-FFMpeg it is written
  

  This library requires a working FFMpeg install. You will need both
  FFMpeg and FFProbe binaries to use it. Be sure that these binaries can
  be located with system PATH to get the benefit of the binary
  detection, otherwise you should have to explicitely give the binaries
  path on load.

  and I am not getting this.

• Anomalie #3184 (Nouveau) : md5_boutons_plugins()

  11 mars 2014, par Franck Dalot

  Bonsoir
  PHP 5.5.7, essai fait chez OVH
  prefix des tables "spipdev21"
  Installation faite en MySQL

  Installation par FTP de spip 2.1.26 [21251] puis passage en spip 3.0.16 [21253]
  Au lieu d’arriver sur la page qui m’indique comme quoi ma base de données va êtes mise à jour, je tombe sur une page blanche avec :
  Fatal error : Call to undefined function md5_boutons_plugins() in /.../ecrire/inc/filtres_ecrire.php on line 47
  Si je réactualise la page, cela fonctionne normalement.

  J’ai fait l’essai d’un passage de spip 2.1.26 [21251] vers spip 3.1 [21256] même problème.

  J’ignore si c’est http://core.spip.org/issues/2307 qui fait sont retour mais cela ressemble au cas que j’évoque (sauf que je ne vide pas le cache pour que cela soit bon)

• No data written to stdin or stderr from ffmpeg

  13 décembre 2017, par Mikkel Bachmann

  I have a dummy client that is suppose to simulate a video recorder, on this client i want to simulate a video stream ; I have gotten so far that i can create a video from bitmap images that i create in code.

  The dummy client is a nodejs application running on an Raspberry Pi 3 with the latest version of raspian lite.

  In order to use the video I have created, I need to get ffmpeg to dump the video to pipe:1. The problem is that I need the -f rawvideo as a input parameter, else ffmpeg can’t understand my video, but when i have that parameter set ffmpeg refuses to write anything to stdio

  ffmpeg is running with these parameters

  ffmpeg -r 15 -f rawvideo -s 3840x2160 -pixel_format rgba -i pipe:0 -r 15 -vcodec h264 pipe:1

  Can anybody help with a solution to my problem ?

  —Edit

  Maybe i sould explain a bit more.
  The system i am creating is to be set up in a way, where instead of my stream server ask the video recorder for a video stream, it will be the recorder that tells the server that there is a stream.