Recherche avancée

Sur d’autres sites (14018)

• How can we play 2 videos side by side as per the resolution we provide to the output video and adjust the two input videos position

  1er décembre 2023, par Bhavya Nayak

  -> For playing two video side by side as per the output video resolution I provide :-

  


  

  1. I want output video of resolution 1280x720 so for this.

  


  


  a. First I have trimmed the two video using below command :-

  


  ffmpeg -i input_viedo.mp4 -ss 00:00:10 -t 00:00:20 -vf      "scale=1920:1080,pad=1920:1080:0:0:yellow" -c:v libx264 -c:a aac -strict -2 output_video_trimmed.mp4



  


  b. Now to I want to play both the trimmed video into one output video file as per the position I provide , so for this I have tried below command which is not giving the correct output :

  


  ffmpeg -i output_video_trimmed_1.mp4 -i output_trimmed_2.mp4 -filter_complex "[0:v]scale=634:360[pad1];[1:v]scale=640:360[pad2];[pad1]pad=1280:360:0:100[tl];[pad2]pad=1280:360:634.752:130.392[br];[tl][br]vstack,scale=1280:720[output]" -map "[output]" -c:v libx264 -preset ultrafast -crf 18 -c:a aac -b:a 1280x720 output_final_video.mp4


  


  

  • In above command I have provide the specific width,height,top,left of the input video I want ,

  


  


  But it is not giving me correct output.

  


  —> Output I am getting by running this command is attached below :-

  


  Output video Image I am getting by running above command

  


  Actual output I want

  


  —> The issue in above command is while adding top it is not working properly , like top is not affecting the video so I want the solution for that.

  


• Revision 6919 : Gros changement... On change le pipeline diogene_champs_sup en ...

  22 août 2012, par kent1 — Log

  Gros changement...
  On change le pipeline diogene_champs_sup en diogene_objets
  Les champs_sup antérieurs $fluxarticle ?truc ? deviennent maintenant $fluxarticle ?champs_sup ?truc ?
  On fait cela pour gérer d’autres propriétés spécifiques par objet comme :
   $fluxpage ?type_orig ? = ’article’ ; => indique que le type d’origine est article ;
   $fluxpage ?diogene_max ? = 1 ; => indique que l’on ne peut avoir qu’un seul diogène de ce type ;
   $fluxpage ?ss_rubrique ? = true ; => indique que ce type de diogène est sans rubrique, ne peut correspondre à 1 secteur ;
  Passage en version 1.2.0

• Extract individual frames as a buffer from a video

  30 août 2022, par mgo

  I'm trying to process a video using tensorflow in node.js (i.e. on the server - I don't have a web page). I need to process each frame in the video individually. I see some people are using ffmpeg to generate individual image files from the video but that seems wasteful as it creates files on the filesystem. I would prefer to grab each frame as a base64 string in memory. I've got this working using OpenCV4Node but am wondering if there are any lighter weight solutions. Is anyone already doing this ? Any help would be appreciated :-)