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  • 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.

  • Configuration spécifique d’Apache

    4 février 2011, par

    Modules spécifiques
    Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
    Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
    Création d’un (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (4156)

  • Revision 5938 : pour swfupload ce n’est pas data.result.message mais data.message

    29 septembre 2011, par kent1 — Log

    pour swfupload ce n’est pas data.result.message mais data.message

  • ffmpeg : save separate frames as still gifs

    7 novembre 2013, par Eugene M

    The question is simple : I don't want ffmpeg to create an animated GIF from given video stream, I want separate frames, each in GIF format. But when I set output file to something like frame%09d.gif ffmpeg tends to create an animation (and stores it exactly as frame%09d.gif). The same for -f gif option.

    Of course, I could save PNGs and use ImageMagic's convert utility to transform them to GIFs, but I don't want any additional invocation overhead because I'm dealing with live streams and going to crunch large amounts of data.

    Here is what I do, nothing special :

    ffmpeg -i http://brightcove03-f.akamaihd.net/valgbodmandag1378107345_1_300k@80362 -f gif -y frame_%09d.gif
    

    
ffmpeg version N-54643-g15cee5e Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul 11 2013 03:35:11 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnu
    
tls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --ena
    
ble-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger -
    
-enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-lib
    
vpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 39.100 / 52. 39.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.101 / 55. 12.101
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 80.100 /  3. 80.100
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
[flv @ 00000000002cb700] Stream discovered after head already parsed
    
Input #0, flv, from 'http://brightcove03-f.akamaihd.net/valgbodmandag1378107345_1_300k@80362':
    
  Metadata:
    
    encoder         : Lavf54.6.100
    
  Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 480x270 [SAR 1:1 DAR 16:9], 25 tbr, 1k tbn, 50 tbc
    
    Stream #0:1: Audio: aac, 44100 Hz, stereo, fltp, 128 kb/s
    
    Stream #0:2: Data: none
    
[swscaler @ 0000000004d051e0] No accelerated colorspace conversion found from yuv420p to bgr8.
    
Output #0, gif, to 'frame_%09d.gif':
    
  Metadata:
    
    encoder         : Lavf55.12.101
    
    Stream #0:0: Video: gif, bgr8, 480x270 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 100 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> gif)
    
Press [q] to stop, [?] for help
    
frame=  141 fps=130 q=-1.0 Lsize=    4960kB time=00:00:05.68 bitrate=7153.1kbits/s
    
video:5100kB audio:0kB subtitle:0 global headers:0kB muxing overhead -2.743247%

    After all I get a file named "frame_%03d.gif", but instead I want to have several files "frame_001.gif", "frame_002.gif", etc.

    Any ideas ?
    Thanks in advance.

  • where to save mpd file in raspberry pi so dash.js can access it remotely ?

    11 mai 2016, par Djm

    This is very high level question. I want to stream a live video from raspberry pi. I want to be able to watch live video in the browser remotely being streamed by the Raspberry pi.I want to use DASH stream protocol, and Dash.js as client to HTML5. I have looked through different tutorials but i am still puzzled about how this works.I understand that (assuming you have already prepared your videos with FFMPEG tool) from the client Dash.js
    you have to make a call/request and pass a url to your mpd file. My question is where would you save the file in raspberry pi especially if the Dash client is in a different web app(i want to make the call remotely) ?

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