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  • 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 (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

Sur d’autres sites (11847)

  • FFMPEG : crop a video without loosing the quality

    21 juillet 2016, par mrana

    I have mp4 video of 1920 x 1080.
    I would like to crop the video to 480 x 270
    I am using the following command :
    ffmpeg -i input.mp4 -filter:v "crop=480:270:200:200" -crf 23 output.mp4
    also used
    ffmpeg -i input.mp4 -filter:v "crop=480:270:200:100" -c:a copy  -qp 0 output.mp4
    I used -crf 23 and -qp 0 for looseless video cropping, but after the cropping video is loosing its quality.

    Does anyone knows how i can crop the video without loosing the quality ?
    Here is the console output :
    https://www.dropbox.com/s/1r4pdgdmtj9ilnm/consol-output.rtf?dl=0

    Thanks so much

  • How to compress output file using FFmpeg - Apple ProRes 422

    10 septembre 2015, par user1526912

    I am new to video encoding and trying to encode a music video for the apple itunes video store.

    I am currently using FFmpeg for encoding.

    My source file is mp4 file type and file size=650MB

    I encode the file using the Apple ProRes 422 (HQ) codec and output a mov file.

    ffmpeg -y -i busy1.mp4  -vcodec prores -profile:v 3 -r "29.97" -c:a mp2   busy2.mov

    I am trying to encode the video according to the following specs :

    ● Apple ProRes 422 (HQ)
    ● VBR expected at 220 Mbps

    Encoded PASP Converted to ProRes From
    1920 x 1080 1:1 HDCAM SR, D5, ATSC
    1280 x 720 1:1 ATSC progressive

    29.97 interlaced frames per second for video sourced

    Music Video Audio Source Profile

    ● MPEG-2 layer II stereo
    ● 384 kpbs
    ● 48Khz

    The file is encoded perfectly fine however the output is 6Gb in size.

    Why would the file be so large after encoding ?

    Am I doing something wrong here ?

  • mpeg dash on wowza server not working, status error 404 Not Found

    10 septembre 2015, par jobin

    adaptives links for mpeg dash on wowza server not working with me, the following are the steps that I used to publish video on wowza :

    1. I install and configure Wowza server, and I tested it and it is working fine.

    2. Transcode this video using ffmepg (I bring these command from wowza documentation)

    3. I test the files and all of them workig fine then I moved these files to wowza content folder and create the smil file as following :

    enter image description here

    <?xml version="1.0" encoding="UTF-8"?>
    
<smil title="sintel">
    
  
    
    <switch>
    
      <video width="320" height="180" src="sintel_320p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
      <video width="640" height="360" src="sintel_640p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
      <video width="320" height="180" src="sintel_400p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
      <video width="420" height="270" src="sintel_700p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
      <video width="720" height="406" src="sintel_1100p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
      <video width="1024" height="576" src="sintel_1300p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
      <video width="1080" height="608" src="sintel_1500p.mp4" systemlanguage="eng">
    
        
    
        
    
      </video>
    
    </switch>
    
  
    
</smil>
    1. I use the mpd file (http://191.237.26.137:1935/vod/smil:sintel.smil/manifest.mpd) with http://www.jwplayer.com/innovation/roadmap/mpeg-dash/

    Result : the video work for first few seconds the stop

    enter image description here

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