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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • 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 ;

Sur d’autres sites (14199)

  • Why do file length appears to be longer after using ffmpeg convert HEIC to PNG ?

    15 octobre 2024, par BrinyFish

    I have been moving all my photos from iphone to my windows PC. Because I don't like to keep all the files in HEIC format, so I used ffmpeg to try to batch convert all the photos from HEIC to PNG.

    


    Get-ChildItem *.heic | ForEach-Object {
    ffmpeg -i $_.FullName -map_metadata 0 -q:v 1 "$($_.BaseName).png"
}


    


    File size difference
After testing this chatGPT generated code on a small sample set of photos, I realize that the length of the PNG photos are smaller than the length of the HEIC photos. I have always believed that HEIC is the compressed format, which should be smaller. However, this size difference really makes me wonder if I am losing resultion or meta data. Do anyone know why would this be the case ?

    


    I have googled and most articles are saying that HEIC should be smaller than PNG, which don't help me in this case.

    


  • ffmpeg : combine portrait and landscape video files in one file by adding a black frame

    18 juillet 2021, par Oliver

    i use my iPhone to record videos. Usually i get a lot of short clips, which I upload to my pc and then concatenate them with ffmpeg using this command :

    


    ffmpeg -f concat -safe 0 -i filelist.txt -c:v libx265 -preset slow -x265-params strong-intra-smoothing=0:merange=58 -crf 25 -c:a aac -b:a 320k -tag:v hvc1 output.mp4


    


    filelist contains a list of these clips sorted by date. This works fine, but recently a had some clips recorded in portrait mode. The result was an output video which contained the portrait clips stretched to fill the full horizontal space. Instead of that i would like to just have the horizontal space filled with black borders. Is that possible by changing the command posted above ? Or do i have to convert those portrait clips before ?

    


  • Video rotation with FFmpeg

    6 mars 2016, par haresh

    I’m developing a PHP web service for my iPhone app in order for the users to upload videos. When users want to see a video on the site they get a horizontal video, so I need rotate the video using FFmpeg commands. Can someone help me ?

    function make_rotation($input, $output, $transpose="1") {
    
    $ffmpegpath = "ffmpeg";
    
    if(!file_exists($input)) return false;  
    
    //$command = "$ffmpegpath -i $input -vf 'transpose=$transpose' $output";
    
    //$command = "ffmpeg -vfilters 'rotate=270' -i $input $output";
    
    $command ="ffmpeg -i $input -vf 'transpose=$transpose'  $output";
    
    exec($command);
    
    return true;
    
}

    Thanks All

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