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  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

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  • Convert wmv to mp4 with ffmpeg failing

    10 janvier 2012, par Morph

    I've seen quite a few posts on this, but I can't piece together whether I am doing things right, wrong, or need to download more stuff. I am converting from wmv to mp4 without complaints, but then when I go to play it on the browser window (HTML5) the player just turns grey and blanks out the controls.

    Installing ffmpeg I do

    ./configure --disable-yasm ; make ; make install

    Unless I include the disable yasm it wont go any further. Then I do

    ffmpeg -i myvideo.wmv myvideo.mp4

    All good so far. In my html source I have :

      <video width="320" height="240" controls="controls">
    
  <source src="myvideo.mp4" type="&#39;video/mp4;" codecs="avc1.42E01E, mp4a.40.2"></source>
    
  Your browser does not support the video tag.
    
  </video>

    I am playing this in Chrome 15 and ffmpeg -v is

    ffmpeg version 0.8.6, Copyright (c) 2000-2011 the FFmpeg developers
    
built on Dec  1 2011 15:42:06 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
    
configuration: --disable-yasm
    
libavutil    51.  9. 1 / 51.  9. 1
    
libavcodec   53.  7. 0 / 53.  7. 0
    
libavformat  53.  4. 0 / 53.  4. 0
    
libavdevice  53.  1. 1 / 53.  1. 1
    
libavfilter   2. 23. 0 /  2. 23. 0
    
libswscale    2.  0. 0 /  2.  0. 0

    So I get the HTML5, click on it to play the movie but then the control bar greys out, leaving the play button, but then the play button cannot be clicked and nothing plays.

    Is there something wrong with what I have done above ? Do I need to download some separate mp4 driver and compile it ? I see people referring to h.264 but I thoughts ffmpeg had that already included...

  • HTTP Live streaming iOS not refreshing the index .m3u8 file

    27 février 2013, par Emerson Fittipaldi

    I searched all similar questions on StackOverflow, but found none to answer my problem.

    I am trying to stream some movies from my Linux computer (openSuSE 12.1) to my iPad. I convert them with ffmpeg, segment them with my own segmenter, place them in the www folder of my apache2 server and also place inside the .m3u8 playlist. Til here - all is ok !

    I start playing the movie (HTML page with tag) and it plays nicely, but only the first five segments, which have been loaded with the first load of the playlist. The HTML page (the browser, or the player - no idea) does not refresh (re-download) the playlist from the server. Here is what my .m3u8 playlist file looks like :

    #EXTM3U
    
#EXT-X-MEDIA-SEQUENCE:19
    
#EXT-X-TARGETDURATION:8
    

    
#EXTINF:8,
    
http://192.168.1.4/segment_19.ts
    
#EXTINF:8,
    
http://192.168.1.4/segment_20.ts
    
#EXTINF:8,
    
http://192.168.1.4/segment_21.ts
    
#EXTINF:8,
    
http://192.168.1.4/segment_22.ts
    
#EXTINF:8,
    
http://192.168.1.4/segment_23.ts

    Segments are in the same folder as the playlist file, segments are correctly encoded (because I can see at least the first five ones :D). I also watch the access_log from the apache server and I see the first load of the playlist, then the consequent load of all 5 segments and it stops till there. It doesn't even try to further refresh the m3u8 file.

    If it matters - iOS 5.0, iPad 2, Wi-Fi version only, not jailbroken

    Ideas ? What am I doing wrong ?

  • Use ffmpeg to watermark and scale an image on video

    11 mai 2015, par Ae.

    I want to be able to watermark videos with a logo image, which contains a website url.
    The videos can be of different formats and dimension.
    I’m trying to figure out a generic ffmpeg command to achieve it, so that i don’t have to tweak the command depending on the video i have to process.
    So far i got :

    ffmpeg -i sample.mov -sameq -acodec copy -vf 'movie=logo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]' sample2.mov

    In this way though the logo will look too big or too small with video of different size.
    I’ve seen there is a scale option for avfilter, but I haven’t figure out whether it’s possible to resize the image logo based on the dimension of the input video, so that I can say to scale the logo to 1/3 of the video length for example, and keep the image ratio.

    Any idea ? doesn’t need to be done in a single command, could even be a script.
    thanks in advance.

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