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    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (10941)

  • How to know the delay of frames between 2 videos, to sync an audio from video 1 to video 2 ?

    8 janvier 2021, par jaimepm

    world.

    


    I have many videos that I want to compare one-to-one to check if they are the same, and get from there the delay of frames, let's say. What I do now is opening both video files with virtualdub and checking manually at the beginning of video 1 that a given frame is at position, i.e., 4325. Then I check video 2 to see the position of the same frame, i.e., 5500. That would make a delay of +1175 frames. Then I check at the end of the video 1 another given frame, position let's say 183038. I check too the video 2 (imagine the position is 184213) and I calculate the difference, again +1175 : eureka, same video !
The frame I chose to compare aren't exactly random, it must be one that I know it is exactly one I can compare to (for example, a scene change, an explosion that appears from one frame to another, a dark frame after a lighten one...) and I always try to check for the first comparison frames within the first 10000 positions and for the second check I take at the end.
What I do next is to convert the audio from video 1 to video 2 calculating the number of ms needed, but I don't need help with that. I'd love to automatize the comparison so I just have to select video 1 and video 2, nothing else, that way I could forget forever virtualdub and save a lot of time.

    


    I'm tagging this post as powershell too because I'm making a script where at the moment I have to introduce the delay between frames (after comparing manually) myself. It would be perfect that I could add this at the beginning of the script.

    


    Thanks !

    


  • Load only the next 10min of HTML video when it is playing - not the entire video

    13 avril 2016, par W3Ape

    I have videos on my website with duration of almost 2h (=> large file size).

    I have managed to convert them to h265 to reduce server load. To further reduce server load I also want the video to only load e.g. the next 10min from the point the user currently is at in the video (and not the entire video). Youtube is doing it this way.

    The HTML preload attribute does not have this option. Is there such a feature in ffmpeg (or anywhere else) ?

    Thanks for a hint

  • Python add video layer on a video [closed]

    8 juillet 2023, par Doğan

    I have a video in .webm format with a transparent background, and I would like to overlay this .webm video on the right down side of the main video. The main video is in .mp4 format.

    


    Is there any way to do it with python ?

    


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