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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

Sur d’autres sites (6726)

  • How do I use ffmpeg to bulk scale videos of different sizes to the same size (some potentially with black bar padding) ?

    9 décembre 2020, par Tumbleweed53

    I have a bunch of videos I want to stitch together. I want to scale them all to the same size, maintaining aspect ratio (thus adding black bar padding if necessary). Some videos will be downscaled, but most upscaled.

    


    Does anyone have a clever ffmpeg scale formula to accomplish this ? My alternative is to iterate through every video and calculate the scale formula based on its size, but I'd prefer not to do that if I don't have to.

    


  • Is there a way to convert uploaded videos to browser MP4 using most basic ffmpeg ?

    22 janvier 2016, par PeterTheLobster

    I am trying to convert videos uploaded to my website to browser friendly mp4 using ffmpeg.

    The Problem : the website is hosted by a company and it seems like it does not have the codecs I need (the ones I’m aware to be browser-friendly.) I have learned that h264 and libx264 are the codecs I would want to encode the mp4 videos to, but libx264 is not present and h264 is decodable only. Doing :

    exec("ffmpeg -codecs", $output);

    tells me that :

    D V D h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10

    I have tried converting the videos using mpeg4 codecs, but those are not supported natively in browsers it appears :

    $command ="$ffmpeg -i $target -b 1500k -vcodec mpeg4 -pix_fmt yuv420p -acodec aac -strict experimental $converted2 2>&1";
    
exec($command, $output);

    The videos converted using the method above play only audio in chrome for example (the mpeg4 codec encoding is supported).

    Edit : I was able to convert videos to ogg and webm, but those won’t cover all browsers as far as I’m aware. Especially not the mobile ones anyway.

    Question : is there another type of basic ffmpeg, browser friendly mp4 codecs that I am not ware of or was there something wrong with my conversion $command above ? Or would I have to somehow try to install libx264 codecs and libraries ? (My guess is, that I probably cant do that to their servers, right ?)

  • Concat three videos with one audio [duplicate]

    26 septembre 2018, par Михаил Безуглый

    This question already has an answer here :

    Thank you for coming here.
    I have three video clips (the first is 3 seconds, the second is 20 seconds, the third is 2 seconds), I connect them using the following command :

    ffmpeg -i opening.mp4 -i middle.mp4 -i ending.mp4 -filter_complex "[0:v] [1:v] [2:v] concat=n=3:v=1 [v]" -map "[v]" output.mp4

    Since all three videos do not have audio tracks, I do not need to include [a]. And then the day came when I needed it. I have an audio track,
    duration of 35 seconds(which is much larger than the output.mp4 video) and I need this audio to be connected to the whole video.
    1) Do I need to crop the video to the length that is obtained by merging all three videos ?
    2) Is it possible to do this with one command, or i need first have to concatetate all together with my command, and then merge video and audio track ?

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