Recherche avancée

Médias (91)

Autres articles (87)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

Sur d’autres sites (11955)

  • Converting a color video to 8-bit (per frame) video via FFMPEG

    25 mai 2020, par SilverSurfer

    I wish to convert a color video file (AVI format) to grayscale video (i.e. 8 bits per frame) AVI video via FFMPEG. Any pointers ?

    



    I have tried using gray and yuv420p options in pix_fmt but it they didn't help.

    



    Thank you

    


  • Converting video to .mp4 format after upload from local system does not show the video only hear sound

    18 juillet 2012, par user850234

    I am using fileuploader.js to upload a video file. Now i want to convert the video format to .mp4. I have used ffmpeg and php to convert the video to .mp4 after upload. The sample segment i used is

    $converted = "uploads/".$uniqid.".mp4"; //$uniqid is the id for the video after upload
    
$cmd = "$ffmpeg -i $sourceUrl -f mp4 $converted"; //$sourceUrl is the path of the video

    I have tried to convert .flv video file to .mp4 format and it does but the problem is i cannot see the video only hear the sound after converting. Is the conversion line used in $cmd incorrect. Please help.

  • Create video with size based on image and place a video somewhere with an offset

    10 mars 2024, par NoKey

    I am trying out FFMPEG and I am unsure how hard it is to do what I want. I have some device frames and I want to play a video inside the frame. For example, this is a device frame :

    


    enter image description here

    


    Now I want to play a video within the screen of the iPhone. I already got the exact X and Y offset where the video must be placed to show it correctly. I have the following challenges to make it work, and I want to make sure FFMPEG can do it before I spend to much time reinventing the wheel :

    


      


    • The output of the video must be as big as the PNG. This is already a
confusing part for me. I have the width and height already available,
but the things I saw is that FFMPEG will take over the input of the
video as final size. The final output of the video should of course
be the length of the input video.

      


      • 


    • The background must be transparant (so no black background, I want to
play the video on top of a website so it's nice if it's transparant and the corners are not black).

      


      • 


    • The ability to place a video somewhere with a specified X and Y
offset inside the device frame.

      


      • 


    • Not sure if it's possible in the same command, but maybe the video
needs to be resized to make it fit. I got the exact dimensions for
the video.

      


      • 


    


    The things I struggle most is point 1 where the output video must have a transparant background and where the device frame is placed in. Does anybody got tips ?

    


Navigation