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Autres articles (76)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • 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

Sur d’autres sites (9474)

  • Revision 95a484c01465c56cc527a044e72c2e1165f5448f : Google&co indexe les urls courtes microbloguees. Il convient donc de les ...

    6 décembre 2010, par Cerdic — Log

    Google&co indexe les urls courtes microbloguees. Il convient donc de les rediriger par un status 301 afin d’indiquer que cette adresse courte est definitivement renvoyee vers l’url complete git-svn-id : svn ://trac.rezo.net/spip/branches/spip-2.1@16625 (...)

  • undefined reference to `x264_encoder_open_125'

    18 juin 2013, par Vishal

    While installing ffmpeg on Ubuntu 12.04

    I am getting following error

    libavcodec/libavcodec.a(libx264.o): In function `X264_init':
    
/root/ffmpeg/libavcodec/libx264.c:492: undefined reference to `x264_encoder_open_125'
    
collect2: ld returned 1 exit status
    
make: *** [ffmpeg_g] Error 1

    I am following the instructions given at
    http://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide

    Do anyone have idea about this error ?

  • ffmpeg encoding slowly, not using much CPU

    30 juin 2012, par eblume

    I am using the latest (as of this post) version of ffmpeg on OS X as installed via homebrew (an OS X 3rd-party package manager with a good reputation.) I am trying to encode video that was recorded using Fraps on another machine to reduce the file size while preserving as much quality as is reasonably possible.

    Fraps records video in a .avi container and I believe does absolutely no encoding - instead, it's just a stream of image files. The resulting files are often enormous, obviously. I want to set up a cron job that finds recorded files and encodes them to H.264 with some sort of audio codec (I'm currently using libmp3lame but will revisit it when I get video working right - will probably switch to a lossless audio codec.)

    My problem is that while encoding seems to be working exactly how I want it - very few compression artifacts but about 5% of the original size - the encoding is taking forever. I'm averaging about 1.5 encoded frames per second, and these are 2-3 hours of 30FPS video. On top of that, my CPU is never fully utilized. On my dual-core CPU I am getting a median usage of about 40% of one core, with occasional peaks of 140% to 160%.

    So the question is : How can I speed up encoding ? I'm sure there's got to be some options I'm missing out on.

    Here's the command I use :

    ffmpeg -i INFILE -c copy -c:a libmp3lame -ar 44100 -q:a 5 \
    
              -threads 0 -c:v libx264 OUTFILE

    Thanks !

    EDIT : Actually, it looks like this command isn't compressing that well either - I'll do some digging but it seems that this might be being too generous with the bitrate for H.264. At first I was getting around 2Mb/s but it's gone up to almost 20Mb/s - looks like I'm basically not compressing at all.

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