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• Révision 21680 : Petite amelioration sur le logo :

  23 octobre 2014, par cedric -

  - ajouter une class spip_logo_(left|right|center|top|bottom) correspondant au parametre d’alignement demande dans la balise #LOGO{}
  - quand align est left ou right, ne pas utiliser l’attribut align deprecie mais un style float inline a la place
  - enrichir le retour de quete_logo pour un usage plus simple
  + PHPDoc

• Removing / Overlaying logo on mp4 video format with ffmpeg on linux

  12 septembre 2020, par SilverShadow

  I'm trying to remove a logo from an .mp4 video file with ffmpeg on linux machine without re-encoding (for preserving the same quality) with the following command :

  


  ffmpeg -i input.mp4 -vf delogo=x=270:y=190:w=40:h=40 -c:a copy output.mp4 


  


  and it gives me the following errors :

  


  Unrecognized option 'vf'


  


  then a new error came up :

  


  Unable to find a suitable output format for 'delogo=x=270:y=190:w=40:h=40'


  


  ffmpeg is always updating and it seems that they change command line arguments a lot so any material or tutorial I find online seems to get outdated quickly ...

  


  I reviewed the documentation but can't get it to work, I think I'm missing something...?

  


  So : What is the correct command line in linux shell ? Also, how to view or find out the exact coordinates of the area to be removed before actually removing the logo ? And how can I overlay a solid color in a certain area instead of removing the logo transparently ?

  


• ffmpeg multiple text/logo elements

  17 septembre 2018, par omega1

  I am trying to add multiple items to an ffmpeg command and am getting stuck.

  So far in the command I am automatically updating one image, which I’m using as a video, I also want to add a logo and two lines of text.

  I have been successful until the last item, which is the logo overlay.

  This is the relevant part of code :

  ffmpeg \
  
      -f image2 -loop 1 \
  
      -y \
  
      -i "/var/www/html/image_rotate.png" \
  
      -re \
  
      -i audio.mp3 \
  
      -vf "movie=/var/www/html/overlay_logo.png [watermark]; [in][watermark] overlay=0:0 [out], drawtext=fontsize=10:fontfile=/var/www/html/OpenSans-Regular.ttf:textfile=/var/www/html/text1.txt:box=1:boxcolor=#000000:fontcolor=#FFFFFF:x=0:y=(h-text_h-20):reload=1, drawtext=fontsize=10:fontfile=/var/www/html/OpenSans-Regular.ttf:textfile=/var/www/htmltext2.txt:box=1:boxcolor=#000000:fontcolor=#FFFFFF:x=0:y=(h-text_h-30)" \

  This gives me the following error :

  Simple filtergraph ... was expected to have exactly 1 input and 1 output. However, it had >1 input(s) and >1 output(s). Please adjust, or use a complex filtergraph (-filter_complex) instead.

  If I remove the last part I added (the overlay logo) I do not get the error.
  If I add multiple -vf it only processes one (the text OR the logo).

  I’m not sure how to achieve this.