Recherche avancée

Médias (0)

Mot : - Tags -/upload

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

Autres articles (75)

  • 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

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • Soumettre améliorations et plugins supplémentaires

    10 avril 2011

    Si vous avez développé une nouvelle extension permettant d’ajouter une ou plusieurs fonctionnalités utiles à MediaSPIP, faites le nous savoir et son intégration dans la distribution officielle sera envisagée.
    Vous pouvez utiliser la liste de discussion de développement afin de le faire savoir ou demander de l’aide quant à la réalisation de ce plugin. MediaSPIP étant basé sur SPIP, il est également possible d’utiliser le liste de discussion SPIP-zone de SPIP pour (...)

Sur d’autres sites (5020)

  • Is there a way to extract a video frame, encode a sentence behind it, put it back, and then decode it ?

    29 juillet 2021, par Jesse Hix

    I am trying to do stenography on an MP4 video where I am pulling a frame out at a certain time, 5.52 sec, saving that frame as a jpg or jpeg using any image stenography tool, in this case stegosuite, to encode a sentence behind the image and then reinsert that image back into the video at the same time and then extract it again with the same command and using the same steno tool read the message.

    


    Up until decoding the message everything runs without issue.
I know that it is not working because the videos are not the same in size meaning that the frankenstein video is not the same as the original and thus messing up the frame extraction.

    


    Question :
    Is there a way to extract a frame encode a sentence behind it put it back and then decode it ?

    


    What I tried :
    
Used to extract the frame both times :

    


    ffmpeg -ss 5.52 -i original.mp4 -vframes 1 frames_%d.jpg


    


    Used to combine the image back into the video :

    


    ffmpeg -i original.mp4 -i frames_1_embed.jpg -filter_complex "[1]setpts=5.52/TB[im];[0][im]overlay=eof_action=pass" -c:a copy out_1.mp4


    


  • Icecast live stream extract none silent parts into individual files

    18 avril 2020, par Nokoa

    I am looking to split an icecast audio live stream into individual audio files separated by silences. I was able to achieve this with FFMPEG when having the source input file saved locally first. I can't do that because I have 20 streams being monitored and the original files keeps growing and end up taking too much space on my drive.

    



    Is it possible to do this directly with a live stream audio without saving the full original uncut stream file to drive ?

    


  • How do I generate a file M3U8 compatible with fmp4 ?

    18 janvier 2019, par Dop

    I have a streaming solution that use MPEG-Dash protocol, and I would like to expose the same files on hls for IOS devices.

    I read that fmp4 is now compatible with hls, so I thought that this could be done

    When I generate may mpd file with this command :

    MP4Box -dash 33000 -frag 33000 -out video.mpd -profile dashavc264:onDemand original.mp4#audio original.mp4#video

    what I want is to not duplicate files, and use my generated Dash files with a HLS manifest file.

Navigation