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Autres articles (42)

  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (8815)

  • Glitchy mp4 File saved with Matplotlib Animation via ffmpeg

    9 janvier 2024, par Jacob Ivanov

    I am attempting to save an .mp4 file using matplotlib.animation to output some simulation results. The relevent section is as follows :

    


    ANI = FuncAnimation(fig, update, init_func = lambda : None, frames = range(0, 21300, 50))
ANI.save("[removed]/anim/v6 256 unforced 0.02.mp4", dpi = 600, fps = 30, writer = 'ffmpeg')


    


    However, it appears that there is some issue in the produced .mp4 file, as when I use macOS Quicktime to view the file, it pauses on certain frames, and restarts later on. It appears to consistently pause on the same frame a few seconds in. In order to check if Quicktime was the problem, I opened some random .mp4 files I found in a family group chat, and did not have this issue.

    


    I also tried viewing this .mp4 file with VLC, which had no issue, and played without any glitches. The Slack media viewer built into the app pauses similar to Quicktime.

    


    The following are all relevant versions :

    


      

    • macOS : 14.2.1 (23C71)

      • 


    • Python : 3.10.9 via Homebrew

      • 


    • Matplotlib : 3.6.2

      • 


    • ffmpeg : 6.1.1

      • 


    


    If it would help, I can also provide the .mp4 file itself, but I'm not quite sure how to upload it. I will be happy to provide any additional information as well.

    


    Unfortunately, I'm not very familiar with video rendering, but I would appreciate any help anyone could provide. Thank you in advance !

    


  • lavu/random_seed : use arc4random() when available

    7 décembre 2015, par Ganesh Ajjanagadde
    lavu/random_seed : use arc4random() when available

    arc4random() was designed as a superior interface for system random
    
number generation, designed for OpenBSD and subsequently incorporated by
    
other BSD’s, Mac OS X, and some non-standard libc’s. It is thus an improvement to
    
use it whenever available.
    

    As a side note, this may or may not get included in glibc, and there is
    
a proposal to create a posix_random family based on these ideas :
    
http://austingroupbugs.net/view.php?id=859.
    

    Tested on Mac OS X.
    

    Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
    • [DH] configure
    • [DH] libavutil/random_seed.c

  • mips : intreadwrite : Only execute that code for mips r1 or r2

    25 septembre 2015, par Vicente Olivert Riera
    mips : intreadwrite : Only execute that code for mips r1 or r2

    MIPS R6 supports unaligned memory access and does not have
    
the load/store-left/right family of instructions.
    

    Signed-off-by : Vicente Olivert Riera <Vincent.Riera at imgtec.com>
    
Signed-off-by : Luca Barbato <lu_zero at gentoo.org>
    
Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
    • [DBH] libavutil/mips/intreadwrite.h

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