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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Configuration spécifique d’Apache

    4 février 2011, par

    Modules spécifiques
    Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
    Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
    Création d’un (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

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  • 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 modify audio length/size ( stretch or shrink)

    14 juin 2016, par mido

    I am developing a web app, where people can record videos. I have been able to send chunks of audio n video to server successfully, where I am trying to combine them and return as single proper file.

    my problem is if the recording is for one hour, after merging the chunks

    video length : 1:00:00 , audio length : 00:59:30,

    now, this is not a issue of audio not getting recorded( I have checked that), the problem is, somehow, when i merge the chunks of audio, it shrinks,

    I find that it is progressive sync issue where it gets worse and worse as time increases.

    I have searched the net for the solution, most places say async, I have tried using it, but to no avail, is the below usage correct ?

    ffmpeg  -i audio.wav -async 1 -i video.webm -y -strict -2 v.mp4

    (v.mp4 is the final file that I provide to the users.)

  • ffmpeg modify audio length/size ( stretch or shrink)

    24 janvier 2024, par mido

    I am developing a web app, where people can record videos. I have been able to send chunks of audio n video to server successfully, where I am trying to combine them and return as single proper file.

    



    my problem is if the recording is for one hour, after merging the chunks

    



    video length : 1:00:00 , audio length : 00:59:30,

    



    now, this is not a issue of audio not getting recorded( I have checked that), the problem is, somehow, when i merge the chunks of audio, it shrinks,

    



    


    I find that it is progressive sync issue where it gets worse and worse as time increases.

    


    



    I have searched the net for the solution, most places say async, I have tried using it, but to no avail, is the below usage correct ?

    



    ffmpeg  -i audio.wav -async 1 -i video.webm -y -strict -2 v.mp4

    



    (v.mp4 is the final file that I provide to the users.)

    


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