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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (7626)

  • Opencv 3.1 compiled with FFMPEG, but won't open https urls

    2 mars 2018, par stalagmite7

    I work on a 16.04 system, and have successfully installed opencv 3.1 with FFMPEG flags enabled. I double checked this was actually the case by cv2.getBuildInformation() and I got FFMPEG = YES.

    I am trying to open a video that is hostel on a private server by my workplace (I am logged in to the VPN, in case thats a concern) and I can access this video over the browser. But videocapture with cv2 fails.

    >>> cap = cv2.VideoCapture("https://xxx.mp4", cv2.CAP_ANY) #dummy url
    
>>> cap
    
<videocapture 0x7f63300fa4b0="0x7f63300fa4b0">
    
>>> cap.isOpened()
    
False
    
</videocapture>

    This is always the case for https urls. It seems to be able to work with local videos just fine. I have tried a bunch of different thing : initially thought it was a gstreamer problem so I checked my plugins, had some gst-bad versions (ref : https://github.com/GStreamer/gst-plugins-ugly), removed those and replaced with good versions, no joy. Also tried to explicitly tell videoCapture to use cv2.CAP_ANY and cv2.CAP_FFMPEG flags while reading the video, still no luck.

    I disabled the Gstreamer flag while compiling opencv, but even with it set to ON, there was no difference in my problem.

    I haven’t been able to find a solution to this issue and have been looking and trying different things for days now ! Any ideas ?

  • taking time stamped sequence of images from a video using ffmpeg

    11 septembre 2012, par user1662322

    How should I take time stamped images from a video using ffmpeg ?
    for example ;

    image-0001 --> 0:00:00.0000
    
image-0002 --> 0:00:01.0000
    
image-0003 --> 0:00:02.0000
    
.....

    I have tried ;

    ffmpeg -i input.flv -ss 00:00:00.0000 -r 1 image%4d.jpg

    But it seems that using this code, ffmpeg does not take exactly one picture per second and the time of the taken pictures can not be calculated accurately from the image file number.

  • avcodec/lossless_videoencdsp : Fix unaligned access

    13 mars 2024, par Andreas Rheinhardt
    avcodec/lossless_videoencdsp : Fix unaligned access

    HAVE_FAST_UNALIGNED being true does not imply that
    
one can simply read from any pointer via *(long*).
    
It is undefined behaviour in case the pointer is not
    
sufficiently aligned ; and even if it is, it is (likely)
    
a violation of the effective-type rules. Fix both
    
of these by using the appropriate AV_[RW]N macros.
    

    Also, the current code used sizeof(long) as if this
    
were the CPU's native arithmetic size, but this is
    
not true on 64bit Windows. This has been fixed, too.
    

    This affected huffyuv FATE-tests.
    

    Tested-by : Sean McGovern <gseanmcg@gmail.com>
    
Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] libavcodec/lossless_videoencdsp.c

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