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  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • Formulaire personnalisable

    21 juin 2013, par

    Cette page présente les champs disponibles dans le formulaire de publication d’un média et il indique les différents champs qu’on peut ajouter. Formulaire de création d’un Media
    Dans le cas d’un document de type média, les champs proposés par défaut sont : Texte Activer/Désactiver le forum ( on peut désactiver l’invite au commentaire pour chaque article ) Licence Ajout/suppression d’auteurs Tags
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire. (...)

Sur d’autres sites (6230)

  • Determine the actual resolution of a video using ffmpeg [closed]

    18 novembre 2020, par Eypros

    I am trying to decode an avi video but but when I pass it through ffmpeg to check the encoding parameters I get this outcome which confused me :

    


    $ffmpeg -i video.avi
...
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2501 kb/s, 30 fps, 30 tbr, 15360 tbn, 30 tbc (default)


    


    I guess yuv420p means something like 746x420 pixel (I made the multiplication myself, so I am not sure it's exactly this one using the ratio of 1920x1080 and 1280x720) but anyway much less than 1280x720 which is 720p. So, what does exactly means those two together ?
yuv420p vs 1280x720 ?

    


    Can someone explain which is the actual resolution of the video ?

    


  • Stop FFMPEG changing extracted frame resolution

    22 septembre 2020, par S_Wheel

    I'm using a bash script to extract frames from a bunch of videos in a folder.

    


    #!/bin/bash&#xA;if [ "$1" == &#x27;&#x27; ] || [ "$2" == &#x27;&#x27; ] || [ "$3" == &#x27;&#x27; ]; then&#xA;    echo "Usage: $0 <input folder="folder" /> <output folder="folder"> <file extension="extension">";&#xA;    exit;&#xA;fi&#xA;for file in "$1"/*."$3"; do&#xA;    destination="$2${file:${#1}:${#file}-${#1}-${#3}-1}";&#xA;    mkdir -p "$destination";&#xA;    ffmpeg -i "$file" -vsync 0 -frame_pts true -r 1000 "$destination/frame_%d.png";&#xA;done&#xA;</file></output>

    &#xA;

    Using the ffmpeg command :

    &#xA;

    ffmpeg -i "$file" -vsync 0 -frame_pts true -r 1000 -s "$destination/frame_%d.png";&#xA;

    &#xA;

    My problem is the extracted frames have a lower resolution (and also a different resolution). The first video goes from 1024x576 to 768x576 in the extracted frames.

    &#xA;

    I can't force the WxH in the command because the videos all have different resolutions. Does anyone know why ffmpeg is changing the resolution and how to stop it ?

    &#xA;

    Thanks

    &#xA;

  • Is variable resolution possible in MPEG-4 or Matroska ?

    29 août 2020, par Chris_F

    It's become increasingly common for movies to contain sections with varying aspect ratios. For instance, the movie The Dark Knight is is sometime 16:9 full frame, and at other times 2.40:1 with letter boxing. This is fine when viewed on a 16:9 (or even 4:3) screen, but if you try to watch it on a 2.40:1 screen you will get simultaneous horizontal and vertical letterboxes. Extremely undesirable.

    &#xA;

    Currently I use MPC-HC, which has a feature where it is able to analyze the video in real time, detect letter boxing, and dynamically crop the video. This works pretty well, but it's kind of an ugly solution. Are there any video formats that allow meta data like image resolution to change throughout the video ?

    &#xA;

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