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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

  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • 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.
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Sur d’autres sites (10830)

  • Rails preview for active storage videos not working

    17 mai 2022, par Freebian

    I have a pretty standard model where you can upload videos - so far so good.
The video gets uploaded and is also displayed on the show view. Alle seems to be fine....but :

    


    I cannot get a preview fo to work.

    


    ActiveStorage::Blob.last.previewable?
--> false


    


    ActiveStorage::Blob.video?
--> true


    


    FFMPEG is installed on the system and in the gem file

    


    which ffmpeg   
--> /usr/local/bin/ffmpeg

gem 'streamio-ffmpeg'



    


    And of course if I run preview directly, I get an error

    


    ActiveStorage::Blob.last.preview(resize: "200x200>").processed
--> ActiveStorage::UnpreviewableError (ActiveStorage::UnpreviewableError)



    


    Previewers is having video included

    


    Rails.application.config.active_storage.previewers
--> [ActiveStorage::Previewer::PopplerPDFPreviewer, ActiveStorage::Previewer::MuPDFPreviewer, ActiveStorage::Previewer::VideoPreviewer]



    


    I also tried different video formats, but nothing works and I am out of ideas where to look.
Anybody had the same issue ?

    


  • Preprocessing of Columbia active speaker dataset

    21 octobre 2019, par aspit794

    I would like to use the Columbia dataset (which is 1 video https://youtu.be/6GzxbrO0DHM) and its ground truth annotation (http://www.jaychakravarty.com/wp-content/uploads/2016/02/columbiaDatasetGroundTruth.zip).

    annotation contain the frame_id (int), x and y position of the bounding box (int, int), the width=height of the bounding box (int), and the ground truth for active speaker (0 or 1)

    More information : https://www.jaychakravarty.com/active-speaker-detection/

    I managed to download the video, extracted the frames with

    ffmpeg -loglevel 0 -i columbia.mkv columbia/frame_%06d.jpg -nostdin -vf -an -hide_banner

    and draw the ground truth bounding boxes to the video frames (where available).

    However, the bounding boxes are not in the correct places, and I am a bit helpless.

    I tried to convert the video to other frame rate (e.g. 25 fps), but the annotation is not fit.

    I read every paper available, which is related to this dataset, but neither of them mention any information about preprocessing, and the codebase is not publicly available.

    How should I preprocess the video to interpret the annotation ?

  • avcodec/v210enc : Pass through Active Format Description (AFD) data

    7 septembre 2018, par Devin Heitmueller
    avcodec/v210enc : Pass through Active Format Description (AFD) data

    When encoding to V210, make sure the AFD side data makes it through
    
in the resulting AVPacket.  This is needed so the decklink output
    
module can put out AFD when in 10-bit mode.
    

    Signed-off-by : Devin Heitmueller <dheitmueller@ltnglobal.com>
    
Signed-off-by : Marton Balint <cus@passwd.hu>
    • [DH] libavcodec/v210enc.c

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