Recherche avancée

Médias (0)

Mot : - Tags -/protocoles

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

Autres articles (41)

  • 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 ;

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (8033)

  • How to compress a image size to a desired file size in KBs using ffmpeg or python or Ubuntu Command line ?

    4 mars 2019, par yash17

    I’m using ffmpeg to take a screenshot from a udp stream.
    Due to varying bit rates while transmission, the captured screenshot has different file size everytime.400KB,500KB..Even though it is screenshot of a same static page.

    Is there a way to get a specific file size every time, in ffmpeg ?

    Or is there a command to convert a captured file to the desired KB using Python or through Ubuntu terminal ?

    Here is the command I’m using.

    ffmpeg -i udp://@XXX.XX.XX.XX:XXXX -vframes 1 -q:v 1 test.png

    I also tried the following commands in terminal, but it did nothing.

    convert -define jpeg:extent=100kb test.png output.png

  • Most efficient way to render bitmap to screen on Linux [on hold]

    22 juillet 2019, par Maximus

    My goal is to receive a video feed from wifi and display it on my screen. For this, I’ve created a couple of small programs and a bash script to automate them running. It works like this :

    UDPBitmap/Plotter & ffplay -i - < UDPBitmap/pipe & python requester.py;

    Translation : There is a C++ program called Plotter, its job is to receive packets on an assigned UDP port, process them and write it to pipe (named : UDPBitmap/pipe). The pipe is accessed by ffplay, and ffplay renders the video on screen. The python file is solely responsible for accessing and controlling the camera with various HTTP requests.

    The above command works fine, everything works as expected. However, the resulting latency and framerate is a bit lower than what I’ve wanted. The bottleneck of this program is not the pipe, it is fast enough. Wifi transmission is also fast enough. The only thing left is ffplay.

    Question :

    What is the most efficient way to render a bitmap to screen, on Linux ? Is there a de facto library for this that I can use ?

    Note :

    • Language/framework/library does not matter (C, C++, Java, Python, native linux tools and so on...)
    • I do not need a window handle, but is SDL+OpenGL the way to go ?
    • Writing directly to the framebuffer would be super cool...

  • avcodec/dstdec : Check that AC probabilities are within range

    15 octobre 2019, par Michael Niedermayer
    avcodec/dstdec : Check that AC probabilities are within range

    ISO/IEC 14496-3:2005(E) : "Each entry of P_one[ ][ ] is in the range of 1 to
    
128, corresponding to a probability of 1/256 to 128/256 of the next error bit (bit E, See Figure 10.5)..."
    

    Fixes : Timeout (42sec ->1sec)
    
Fixes : 18181/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5736646250594304
    

    Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavcodec/dstdec.c

Navigation