Recherche avancée

Médias (0)

Mot : - Tags -/gis

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (70)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • 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

Sur d’autres sites (9196)

  • using ffmpeg to replace a single frame based on timestamp

    3 avril 2022, par user1361529

    Is it possible to CLI ffmpeg to replace a specific frame at a specified interval with another image ? I know how to extract all frames from a video, and re-stitch as another video, but I am looking to avoid this process, if possible.

    



    My goal :

    



      

    • Given a video file input.mp4

      • 


    • Given a PNG file, image.png and given its known to occur at exactly a specific timestamp within input.mp4

      • 


    • create out.mp4 with image.png replacing that position of input.mp4

      • 


    


  • Merge multiple mp3 to single with ffmeg

    23 mai 2018, par Yusuf Adeyemo

    I’m working on work adding intro and outro to thousands of mp3 files. I have a working instance that does the work but the out couldn’t play the main audio, After playing intro the player stops and if I tried fast forwarding it the changed and sounds somehow corrupted. I have tried many Audio players even VLC do the same. Can some help check, below is what I have

    ffmpeg -i "concat:intro.mp3|audio.mp3|outro.mp3" -acodec copy output.mp3

  • Remapping multiple Mp4 videos into a single one with ffmpeg

    21 septembre 2016, par Josep Bosch

    I’m interested in remapping multiple (6) MP4 videos into a high resolution final video according to lookup tables I calculated. The idea is convert 6 independent videos in a 360º video according to an equirectangular projection.

    Equirectangular image example
    Example of equirectangular video here

    Is there a way to do this remapping with ffmpeg or any other linux program ?
    Right now I’m extracting all the frames from the videos, creating the equirectangular individual images and joining them again into a video. There must be a better way for this...

    UPDATE :

    Following Mulyva’s suggestion I first remap each individual video using the remap filter. Those parts of the panoramic video not covered are interpreted like chromakey pixels using :

    ffmpeg -i videos/camera1.MP4 -i camera0_map_x_radius5.pgm -i camera0_map_y_radius5.pgm -lavfi remap -qscale 1 out0.MP4

    Camera0

    Camera1

    Then I try to overlay them using the chomakey filter :

     ffmpeg -i out0.MP4 -i out1.MP4 -filter_complex "[1:v]chromakey=0x12da11:0.2:0.2[chromakey_res];[0:v][chromakey_res]overlay=eof_action=pass[out]" -map "[out]" out.mp4

    As you can see, the final result has an undesirable green shadow. Any idea of how to remove it ?

    Result

Navigation