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Autres articles (42)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

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  • What encoding settings for BlackBerry HTML5 streaming ?

    27 septembre 2012, par user1441859

    For several days I've been desperately trying to get my videos stream on BlackBerry as well as the major desktop and mobile browser.
    The videos are embedded in this way :

    <video preload="auto" controls="controls">
    
<source src="url.mp4" type="video/mp4"></source>
    
<source src="url.ogv" type="video/ogv"></source>
    
//flash fallback
    
</video>

    When opening the page in the BB browser the black video frame with the controls appears but when I try to play the video the frame stays black and displays an error message : "Video portion is of an unsupported format".
    Sound does play however.

    By now I have tried H.264 and mpeg4 with AAC audio and both of them don't play properly on my BB (OS version 6.0).
    I've been using ffmpeg to encode the files.

  • Want to convert my 16:9 size MKV video to 4:3 size AVI video file

    19 septembre 2012, par Bimal Rekhadiya

    I have a video in MKV format and it's size is 720x304 (16:9 ratio) size video.

    I want to convert it to AVi format (using xvid video codec). The output file size should be 480x360 (4:3 ratio) and also want to keep the original (16:9) ratio so it should be cinemascope (black areas at top and bottom).

    I am on Ubuntu linux OS so I can use mencoder, avconv(ffmpeg) or any tool that work on Linux.

    I am trying this command :

    avconv -i sample.mkv -vcodec libxvid -r 25 -b 1200 -aspect 4:3 -q 1 t.avi

    But the problem is that the video is stretched to 4:3 and I want to keep original video's ratio and want to add black boxes at top and bottom so it will look cinemascope.

    Please provide me command to do this.

  • Set background colour when converting flv to mp4 with ffmpeg

    28 août 2012, par Castles

    I'm attempting to convert flv files (with an alpha channel) that are uploaded to a server to html5 compatible formats. I've got the conversion working but the transparency is rendered as black. What I would like to do is have the ability to specify a colour.

    Is it possible to convert the video and specify the colour ?

    Alternatively, am I able to overlay the video with transparency on a still image that I generate ?

    Update
    I may of solved my own question... Here is my ffmpeg command :

    `ffmpeg -loop_input -f image2 -i background.png -r 25 -t 10 -an -level 21 -refs 2 -b 345k -bt 345k -acodec libfaac -vcodec libx264 -ac 2 -ab 96k -ar 44100 -vf "movie=input.flv, scale=370:500 [logo]; [in][logo] overlay=0:0 [out]" -y -threads 0 output.mp4`

    Which works.. I just need to generate a background image at the right dimensions on the server before converting.

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