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Autres articles (36)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

Sur d’autres sites (5180)

  • Core : Added normalizer

    23 octobre 2015, par Arkni
    Core : Added normalizer

    The user can change the value of an element before validating
    
the element in question. The new value will be then used by
    
the associated methods instead of the `real one`.
    

    Closes #1602

  • How to transcode webrtc to rtmp ? [on hold]

    24 novembre 2015, par yarek

    I know many attempts have been done but in 2015 I cannot find any that works correctly.

    Has someone already done that in real live application ?

    (Mybe ffmpeg or gstreamer can help)

    I want to transcode a webrtc incoming stream into a RTMP

    Regards

  • Why does ffmpeg return a different framecount than ffprobe for the same file ?

    5 mars 2018, par Greg

    I’m trying to count the number of frames in a video but ffmpeg and ffprobe are giving me two different answers.

    $ time ffprobe -v error -count_frames -select_streams v:0 -show_entries stream=nb_read_frames -of default=nokey=1:noprint_wrappers=1 myvideo.mp4
    
2858
    

    
real    0m2.987s
    
user    0m2.740s
    
sys     0m0.172s

    When I check the same file with ffmpeg I get 2 more frames...

    $ time ffmpeg -y -i myvideo.mp4 -vcodec copy -acodec copy -f null /dev/null 2>&1 | grep 'frame=' | awk '{print $2}'
    
2860
    

    
real    0m0.127s
    
user    0m0.080s
    
sys     0m0.032s

    I used ffprobe to output all of the frames and count the number of "[FRAME]"s in the resultant output...

    ffprobe -i myvideo.mp4 -show_frames -v error | grep -o '\[FRAME\]' | wc -l
    
2858

    Which as you can see shows the number ffprobe thought there were.

    Obviously I would prefer to use ffmpeg here because it is significantly faster than ffprobe and I am dealing with thousands of videos that need parsing and indexing. However the failure isn’t consistent across multiple videos ; sometimes it’s 1 out, other times it’s 2 or more...

    Unfortunately, I have been counting frames for the past two years using the ffmpeg method, so I have a significant library of videos to reprocess now ... he gulps... I guess its a good way to verify the readability of the files on the cluster... even so, its going to take probably a few weeks to recalculate all of the existing video frame sizes.

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