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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

  • 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 (...)

Sur d’autres sites (8797)

  • Making images slide and resize as the video plays with ffmpeg

    16 mars 2014, par user3276998

    I want to create a video where I have multiple images on screen at once which are moving around or resizing as the video plays.

    A vastly more advanced version would be like Facebooks https://www.facebook.com/lookback/

    All I need, is to move a few images and change their scale, with set start and end times within the video.

    I could obviously do this with a video editor but I'd like to just drop some images in a directory and then have a preset script which will then create the video for me.

    I've a few months experience with FFMPEG so the directory part is easy, but I'm baffled on the moving bits.

    Any suggestions ? Many thanks.

  • Low latency video streaming over local network using MediaMTX [closed]

    9 juillet 2024, par user26310492

    I'm using OBS with MediaMTX to stream content to less than 5 clients within local network. All devices are capable of H265 decoding. However I am having issues with latency. RTMP/RTSP/HLS or WebRTC no matter which protocol I use, there is a 10 second delay. What can I do to decrease the latency ? Need low latency (1 - 2 secs is ok.)

    


    I tried upgrading to a beefier computer and using different protocols.

    


  • FFMPEG : Making a specifc range of color pixels transparent

    28 décembre 2017, par Pan Ng

    I am trying to overlay one video on top of another using ffmpeg, but couldn’t quite understand the error.
    I based on the existing command from here

    More specifically, I want to replace the all colors close to a specific color (say brown r:82,g:44,b:11), and then have them set as transparent.

    ffmpeg -i moonmen.mp4 -i transparent_overlay.mp4 -filter_complex
    
"[1]split[m][a];
    
 [a]geq='if(between(r(X,Y), 77, 87)*between(g(X,Y), 39, 49)*between(b(X,Y), 06, 16) ,255:255:255,0:0:0)';
    
 [m][al]alphamerge[ovr];
    
 [0][ovr]overlay"
    
output.mp4

    but I got error :

    [Parsed_geq_1 @ 0x7fc8e2e08400] Either YCbCr or RGB but not both must be specified
    
[AVFilterGraph @ 0x7fc8e2e07c60] Error initializing filter 'geq' with args 'if(between(r(X,Y), 77, 87)*between(g(X,Y), 39, 49)*between(b(X,Y), 06, 16) ,255:255:255,0:0:0)'
    
Error initializing complex filters.
    
Invalid argument

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