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Autres articles (56)

  • 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 (...)

  • 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) (...)

  • 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 (10726)

  • Make an Alpha Mask video from PNG files

    15 juin 2019, par Archimedes Trajano

    For RenPy it uses the notion of an Alpha Mask video https://www.renpy.org/doc/html/movie.html#movie-displayables-and-movie-sprites

    I can convert the a bunch of PNGs with alpha channel to http://wiki.webmproject.org/howtos/convert-png-frames-to-webm-video I was wondering how to do the same sort of thing without creating another set of PNG files with just the alpha frame.

    I’ll be okay with something that uses imagemagik in the middle if needed.

  • what is the best way to append a video file to multiple video files using batch file [on hold]

    5 avril 2017, par JAGGADAKU

    i am beginner with computer programming and i have knowledge of c/c++

    from [https://trac.ffmpeg.org/wiki/Concatenate][1] i have learned that how to merge video files using ffmpeg

    To list all video files containing in a folder

    (for %%i in (*.mp4) do @echo %%i) > mylist.txt

    to concatenate files

    ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4

    This merges all files of a list to one single file.
    but How do i append one video file(main.mp4) at the starting of all the video files listed in mylist.txt ?

    can someone help me ?

    Hello there

    i have tried following code i don’t know what’s wrong with it but it is not `

    @echo off
    
(for %%i in (*.mp4) do @echo %%i) > mylist.txt
    

    
for /F "tokens=*" %%A in (mylist.txt) do (
    
    echo %%A
    
    ffmpeg -i "concat:main.mp4|%%A" -c copy  %%Aoutput.mp4
    

    
)
    
`

  • Is ffmpeg running in CPU or GPU ?

    25 mai 2021, par Raghul Selvaraj

    It has been shown in the link

    



    


    https://dri.freedesktop.org/wiki/IntelPerformanceTuning/

    
 


    Step 2 : CPU vs GPU

    


    



    that if the CPU % is more than 90 then the app is running in CPU.

    



    While configuring ffmpeg, I enabled opencl. ffmpeg configurations are,

    



    ffmpeg version ebe0fa0 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  configuration: --enable-gpl --enable-libx264 --enable-opencl --enable-nonfree --enable-libmfx --enable-libmp3lame --enable-libaacplus
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...


    



    But while running ffmpeg using the command

    



    ffmpeg -i /home/M.mp4 -c:v h264 -preset:v faster /home/out.avi

    



    the CPU% has been more than 90 (375%).

    



    In case of ImageMagick, if I enable opencl while configuring, then the app will run in GPU, i.e., the CPU% will be less than 90. I noticed that.

    



    But in case of ffmpeg, it is GPU accelerated one. Then, Why the CPU% is more than 90% ? Is the ffmpeg running in CPU or GPU ? If it is not, how can I make it to run in GPU ?

    


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