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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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 ;

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  • ffmpeg : process each image frame after capturing with x11grab

    21 juin 2012, par cache

    Programmatic way to process each image frame right after capturing using x11grab in ffmpeg

    For example, I have a program that captures screenshots from x display using command :

    ffmpeg -f x11grab -s cif -r 25 -i :0.0 /tmp/out.mpg

    '-r 25' means there are 25 frames being captured in a second. And my question is how to process each frame(image) and decide whether I want to keep this frame or drop it right after each image is captured. I guess this should be done in C by adding some code in x11grab.c.

  • How to make tiled image from video with ffmpeg

    26 août 2020, par apollo

    I want to generate tiled image from video with ffmpeg.
Every part of image is screenshot of video with different moment.

    


  • FFMpeg image sequence to video using VP9 encoder [migrated]

    29 janvier 2016, par user778968

    I’m trying to transcode mp4 to webm format in a lossless way. I tried two ways to do that.

    For that purpose, I extracted mp4 video to image sequences (png). Then, I converted image sequence(without changing any frame) to webm video with a lossless flag. But, when i extract webm video to image sequences and compared with the images that i extracted from mp4 video, i realized that PSNR values were not infinity. It changes from between around 53-55 dB.

    On the other hand, I directly transcoded mp4 to webm with a lossless flag. Then, I extracted image sequences from mp4 and webm format and compared PSNR values. This time i realized that PSNR values are infinity.

    Encoding image sequences to webm video with lossless flag is not actually lossless. Is this true or am i doing something wrong ?

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