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Autres articles (75)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

  • 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 ;

  • 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 (6270)

  • Revision 3073 : On améliore la détection des secteurs... On gère mieux le type et l’objet

    16 mars 2010, par kent1 — Log

    On améliore la détection des secteurs... On gère mieux le type et l’objet

  • FFMPEG scene detection : overlay original frame number

    21 décembre 2020, par Fugi

    I'm able to extract all frames that are not similar to the previous frame from a video file using ffmpeg -i video.mp4 -vf "select=gt(scene\,0.003),setpts=N/(30*TB)" frame%d.jpg (source)

    


    I would like to overlay the frame number onto each selected frame. I tried adding drawtext=fontfile=/Windows/Fonts/Arial.ttf: text='frame\: %{frame_num}': x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000000@1: fontsize=30 to the filter after select and setpts, however %frame_num returns 1, 2, 3, ... (source)

    


    If I put drawtext before select and setpts, I get something like 16, 42, 181, ... as frame numbers (which is exactly what I want), but since the scene detection runs after adding the text overlay, changes in the overlay may be detected as well.

    


    Is it possible to do the scene detection and overlay independently from another ? [in] split [out0][out1] can be used to apply filters separately, but I don't know how to "combine" the results again.

    


  • FFMPEG - What is the difference or relationship between -rtbufsize and -thread_queue_size ?

    5 septembre 2021, par Meaulnes

    Recording my desktop with ffmpeg (specially on Windows, less on Linux) I meet situations where/when ffmpeg complains about real time buffer size or thread queue size.
I understand that the queue size is the number of frames that can reside in the queue and thus I am incited to think that it increases the buffer size as well.
Can someone clarify these notions to me ?

    


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