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Autres articles (36)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • 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 : (...)

  • 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 (7184)

  • How to speed up video conversion

    9 mai 2016, par Arheisel

    I’m currently working in a proyect that involves converting large series of .jpg (>6000) into video format. These frames (320x240) are stored in folders at a rate of 2.5fps. Generating a couple of folders every hour that need to be converted ASAP.

    For now i’ve tried copying the folder to a ram disk and using avconv wich takes about a minute.

    Here is my command :

    avconv -threads auto -y -r 2.51 -i %03d-capture.jpg -s 320x240 -r 25 video.mpeg

    could ffmpeg work faster ?
    is there a way to speed it up ?
    wich video format take less time to convert to ?

  • Speed of moving text drawtext filter - FFMPEG

    8 mai 2016, par BOB

    I’m using this command to move text from one place to another using ffmpeg

    ffmpeg -i VideoInput.mp4 \
    
       -vf "drawtext=enable='between(t,12,14)':fontfile=myfont.otf:text='Test test': \
    
           x='x1+(x2-x1)*(t-t1)/(t2-t1)':y='y1+(y2-y1)*(t-t1)/(t2-t1)':fontsize=65" \
    
       -acodec copy outputVideo.mp4

    Now I need to control the speed of moving the text. I want to speed it up.
    How do I control the speed ?

    Any suggestions ?

    Thank you

  • avcodec/mpegaudio_tablegen : speed up dynamic table creation

    25 novembre 2015, par Ganesh Ajjanagadde
    avcodec/mpegaudio_tablegen : speed up dynamic table creation

    This does some miscellaneous stuff mainly avoiding the usage of pow to
    
achieve significant speedups. This is not speed critical, but is
    
unnecessary latency and cycles wasted for a user.
    

    All tables tested and are identical to the old ones
    
(bit-exact even in floating point case).
    

    Sample benchmark (x86-64, Haswell, GNU/Linux) :
    
old :
    
102329530 decicycles in mpegaudio_tableinit,       1 runs,      0 skips
    

    new :
    
34111900 decicycles in mpegaudio_tableinit,       1 runs,      0 skips
    

    Reviewed-by : Ronald S. Bultje <rsbultje@gmail.com>
    
Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
    • [DH] libavcodec/mpegaudio_tablegen.c
    • [DH] libavcodec/mpegaudio_tablegen.h

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