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Autres articles (74)

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (10971)

  • lavc/opusdsp : simplify R-V V postfilter

    16 décembre 2023, par Rémi Denis-Courmont
    lavc/opusdsp : simplify R-V V postfilter

    This skips the round-trip to scalar register for the sliding 'x'
    
coefficients, improving performance by about 5%. The trick here is that
    
the vector slide-up instruction preserves elements in destination vector
    
until the slide offset.
    

    The switch from vfslide1up.vf to vslideup.vi also allows the elimination
    
of data dependencies on consecutive slides. Since the specifications
    
recommend sticking to power of two offsets, we could slide as follows :
    

            vslideup.vi v8, v0, 2
    
        vslideup.vi v4, v0, 1
    
        vslideup.vi v12, v8, 1
    
        vslideup.vi v16, v8, 2
    

    However in the device under test, this seems to make performance slightly
    
worse, so this is left for (in)validation with future better hardware.
    • [DH] libavcodec/riscv/opusdsp_rvv.S

  • Expand (extend) a video to an specific duration

    8 février 2013, par BorrajaX

    Do VLC or FFmpeg (or AVconv) have any feature to force the duration of a video to a certain number of seconds ?

    Let's say I have a... 5 minutes .mp4 video (without audio). Is there a way to have any of the aforementioned tools "expanding" the video to a longer duration ? The video comes from a Power Point slideshow, but it's too short (running too fast, to say so). The idea would be automatically inserting frames so it reaches an specified duration. It looks like something pretty doable (erm... for a total newbie in video encoding/transcoding as I am) : A 5 minutes video, at 30fps means I have 9000 frames... To make it be 10 times longer, get the first "real" frame, copy it ten times, then get the second "real" frame, copy it ten times... and so on.

    I'm using Ubuntu 12.04, but I can install/compile any required software, if needed. So far, I have VLC, AVConv and FFmpeg (FFmpeg in an specific folder, so it won't conflict with AVConv)

    Thank you in advance.

  • Expand (extend) a video to an specific duration [closed]

    1er octobre 2020, par BorrajaX

    Do VLC or FFmpeg (or AVconv) have any feature to force the duration of a video to a certain number of seconds ?

    



    Let's say I have a... 5 minutes .mp4 video (without audio). Is there a way to have any of the aforementioned tools "expanding" the video to a longer duration ? The video comes from a Power Point slideshow, but it's too short (running too fast, to say so). The idea would be automatically inserting frames so it reaches an specified duration. It looks like something pretty doable (erm... for a total newbie in video encoding/transcoding as I am) : A 5 minutes video, at 30fps means I have 9000 frames... To make it be 10 times longer, get the first "real" frame, copy it ten times, then get the second "real" frame, copy it ten times... and so on.

    



    I'm using Ubuntu 12.04, but I can install/compile any required software, if needed. So far, I have VLC, AVConv and FFmpeg (FFmpeg in an specific folder, so it won't conflict with AVConv)

    



    Thank you in advance.

    


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