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  • Publier sur MédiaSpip

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    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

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

Sur d’autres sites (7230)

  • 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.

  • Sony Launches Less Useful Z5U

    18 novembre 2009

    Sony today announced the NXCAM, an AVCHD-based "professional" camera which bears a striking resemblance to the EX1 and Z5U.

    You get 1080p exmor CMOS chips (presumably 1/3" ?) and records AVCHD to the highly popular (sarcasm) Memory Stick media.

    Pricing hasn’t been announced, but presumably it’ll be in the $4000 range like the Z5U. I’ll be curious to see how this shakes out in the market.

  • Revision 31963 : Si on a le plugin yaml activé, on peut alors exporter chaque menu dans un ...

    7 octobre 2009, par rastapopoulos@… — Log

    Si on a le plugin yaml activé, on peut alors exporter chaque menu dans un fichier yaml.
    Reste à proposer l’import de ce même fichier.

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