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  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

  • 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 (...)

Sur d’autres sites (5686)

  • Revision a5e97d874b : VP9_COPY_CONVOLVE_SSE2 optimization This function suffers from a couple problem

    30 juillet 2015, par Scott LaVarnway

    Changed Paths :
     Modify /vpx_dsp/x86/vpx_convolve_copy_sse2.asm



    VP9_COPY_CONVOLVE_SSE2 optimization

    This function suffers from a couple problems in small core(tablets) :
    - The load of the next iteration is blocked by the store of previous iteration
    - 4k aliasing (between future store and older loads)
    - current small core machine are in-order machine and because of it the store
    will spin the rehabQ until the load is finished
    fixed by :
    - prefetching 2 lines ahead
    - unroll copy of 2 rows of block
    - pre-load all xmm regiters before the loop, final stores after the loop
    The function is optimized by :
    copy_convolve_sse2 64x64 - 16%
    copy_convolve_sse2 32x32 - 52%
    copy_convolve_sse2 16x16 - 6%
    copy_convolve_sse2 8x8 - 2.5%
    copy_convolve_sse2 4x4 - 2.7%
    credit goes to Tom Craver(tom.r.craver@intel.com) and Ilya
    Albrekht(ilya.albrekht@intel.com)

    Change-Id : I63d3428799c50b2bf7b5677c8268bacb9fc29671

  • Multiple side-to-side video streams in one file without transcoding

    10 avril 2019, par Serg Fillipenko

    I am investigating a possibility to store video streams which are coming from few sources already coded in h264 without video transcoding as the device I would like to use for this project won’t be capable of transcoding combined video on the fly.

    What I am looking for is two or more pictures side to side (not video concatenation) packed into mp4/avi/mkv.

    I believe mkv container supports such kind of packaging but I’ve not been able to find appropriate options for ffmpeg or other tool to store it this way. What it does is very slow video transcoding into one big h264 stream.

  • Minutes and seconds as a variable in Python

    28 juin 2014, par Badr Hari

    How can I store hours/minutes/seconds as variable in python ?

    For example :

    time = "01:30" # 1 minute and 30 seconds
    
time2 = time + 10 seconds

    Basically a program (using FFMPEG) will decide when to start playing an audio file but the value can be changed in +-10 seconds. The questions is how can I store this value ?

    To clarify my question :
    The time variable is "01:30" which clearly represent the time, 01 min 30 seconds. How can I add 10 seconds to it to make the variable 10:40 ? Clearly 01:30+:00:10 is not the solution.

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