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Autres articles (44)

  • Demande de création d’un canal

    12 mars 2010, par

    En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
    Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

  • 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 (6157)

  • How to calculate byte/index ranges for mpeg-dash MPD file ?

    7 avril 2016, par TheSHEEEP

    I basically know how an .mpd file would have to be structured to support streaming from separate .mp4 (or webm) files.

    However, I would like to implement the "static" (aka "on-demand") method, thus only having one file per quality that I want to offer in the stream.

    In all samples, this is done by supplying the indexRange & range values within a Representation like this :

    <representation bandwidth="2073921" codecs="avc1.4d401f" height="720" mimetype="video/mp4" width="1280">
    
        <baseurl>car-20120827-88.mp4</baseurl>
    
        <segmentbase indexrange="708-1183">
    
          <initialization range="0-707"></initialization>
    
        </segmentbase>
    
</representation>

    What I could not find out anywhere is how one would calculate the indexRange/range values here, using only ffmpeg (or ffprobe).
    What exactly would one have to do to get those numbers right for arbitrary (yet supported, of course) video files to create the .mpd file for them ?

    Or am I trying to figure out something in vain here and those values are just arbitrary ?

  • ffmpeg build from source fails in docker container ?

    24 mars 2016, par John Allard

    I’m trying to make some changes to the ffmpeg source code (yes, I’m a masochist), and to start I booted an Arch Linux docker container, installed the requirements, downloaded ffmpeg source code, and tried to compile, but I’m getting some extremely odd errors.

    compile command :

    ./configure --bindidr=~/ffmpeg_build --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree

    Output :

    ./configure:unset:3338: no such has table element: mktemp
    
pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
    
pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
    
pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
    
pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
    
... (24 times)
    
pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
    
pr: /tmp/ffconf.r547UgWy.m: No such file or directory.
    
./configure:53378: parse error near '}'
    
==> ERROR" A failure occured in build()
    
    Aborting...
    
The build failed.

    This doesn’t seem to be a problem with ffmpeg, more a problem with the container. If I check find /tmp -name ffconf\* I see that the files do exist and they contain

    extern int getrusage();
    
int main(void){ getrusage(); }

    what in the hell is going on ? hash tabled ? mktemp not working ? files not being found ?

    edit-

    here is what is on the line numbers in the files that give the errors

    3338:configure - unset -f mktemp
    
5338:configure - check_builtin gmtime_r time.g "time_t * time; strict tm*; gmtime_r(time, tm)"

    edit2 - Here’s the dockerfile (cloned from here https://hub.docker.com/r/greyltc/archlinux/ /dockerfile/)

    # Arch Linux baseline docker container
    
# Generated on Sat Mar 19 14:26:28 GMT 2016 using code in this GitHub repo:
    
# https://github.com/greyltc/docker-archlinux
    
FROM scratch
    
MAINTAINER Grey Christoforo &lt;grey@christoforo.net&gt;
    

    
# copy in super minimal root filesystem archive
    
ADD archlinux.tar.xz /
    

    
# perform initial container setup tasks
    
RUN setup-arch-docker-container
    

    
# this allows the system profile to be sourced at every shell
    
ENV ENV /etc/profile

  • checkasm : bench each vf_blend mode once

    20 février 2016, par James Almer
    checkasm : bench each vf_blend mode once

    Also bench a smaller buffer. This drastically reduces —bench runtime
    
and reports smaller, more readable numbers.
    

    Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
    
Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] tests/checkasm/vf_blend.c

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