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Autres articles (36)

  • 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.

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (5723)

  • How to avoid audio sample 16bit clipping after equalization ?

    28 mai 2013, par testCoder

    I have samples which come from ffmpeg, very often it is 16 bit samples (short type), i have used iir band pass filter with dbGain as described here, after filtering i sometimes got a short type overflow and result of it is some noise when calculated sample value go out from 32767/-32767, Is any way to escape audio pcm sample clipping. May be exists any approaches ?

    I have googled but not found any worked example ?

    UPDATE

    When i cast transfer function calculation result to integer and check overflow then noise still occurs: :

    int result = A1 * ((int) Rx) + A2 * ((int) Rxx) + A3 * ((int) Rxxx)
    
                    - B1 * ((int) Ryy) - B2 * ((int) Ryyy);
    
if (result > 32767)
    
    result = 32767;
    
if (result < -32700)
    
    result = -32700;
    
y = (short) result;

  • Rotate a video based on the rotate metadata with ffmpeg ?

    10 juillet 2014, par qix

    I know I can transpose the video with the transpose video filter if I know how the video is rotated in advance, and update the metadata using something like this -metadata:s:v:0 rotate=0, but how can I use the correct transpose value dependent on the metadata rotate bit in the video ? Basically I want to bake the rotate information into the video data itself, and clear the rotate metadata.

    Is it possible to do this with ffmpeg alone, or must I write some sort of script to extract the rotation value, and call ffmpeg with the appropriate options ? If the latter, does anyone have a working script already ? :) I see this as one guy’s approach using exiftool and rails ; is it possible to do it without ?

  • Init improvement : Don’t fail if Flash URL is null in normal include + init case. Instead, show note in debug input and wait for soundManager.setup() with url param, then treat as delayed init case. Improved experience if including , then trying to do setup() after DOM Ready (common jQuery case)

    9 septembre 2012, par Scott Schiller

    m script/soundmanager2-jsmin.js m script/soundmanager2-nodebug-jsmin.js m script/soundmanager2-nodebug.js m script/soundmanager2.js Init improvement : Don’t fail if Flash URL is null in normal include + init case. Instead, show note in debug input and wait for soundManager.setup() with url (...)

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