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  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • 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.

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

Sur d’autres sites (4577)

  • Using FFMPEG library with iPhone SDK for video encoding

    7 août 2020, par user203349

    I need to encode several pictures shot by the iPhone camera into a mp4 video file and I know FFMPEG can do this (the application TimeLapser and ReelMoments do it already). I plan to use this in my app iMotion (available in the appstore).

    


    I successfully install and compile the ffmpeg for the iphone SDK with this link :
http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-October/076618.html

    


    But now I'm stuck here in my XCode project. What should I do next to use the FFMPEG library for video encoding ? The Apple documentation about external library using is very light and I just can find any tutorial on the web which explains how to do this.

    


  • avcodec/mpeg4audio : add newer channel_coding mappings

    10 juin 2020, par Jan Ekström
    avcodec/mpeg4audio : add newer channel_coding mappings

    Additionally, add comments regarding their definitions. Based on
    
ARIB STD-B32, which bases on 14496-3:2009 and 14496-3:2009/AMD4.
    • [DH] libavcodec/mpeg4audio.c
    • [DH] libavcodec/mpeg4audio.h

  • FFmpeg amix-filter always does "volume normalization". How to prevent it and what are the possible drawbacks of it ?

    14 juin 2020, par Chitrang

    There are many questions on this topic link1, link2, and link3. However, I am asking for suggestions on the probable solution and if it has some drawbacks.

    



    Problem Definition : amix-filter always does "volume normalization" and can't be turned off

    



    Reference : Please read comments over here by @Reino. He also had opened a ticket on the FFmpeg forum to explain the situation.

    



    Hacky Solution : amix=inputs=13:dropout_transition=1000,volume=13

    



    Reference : Answered here, and also in the ticket.

    



    Questions :

    



    1) "amix scales each input's volume by 1/n where n = no. of active inputs. This is evaluated for each audio frame. So when an input drops out, the volume of the remaining inputs is scaled by a smaller amount, hence their volumes increase."Refer

    



    For example, if I am merging 10 audio streams then, the 1st audio stream will be scaled by 1/10, 2nd by 1/9, 3rd by 1/8 .. 9th by 1/2 and last 10th by 1. Have I understood this correctly or let me know if I am missing something ?

    



    2) dropout_transition : The transition time, in seconds, for volume renormalization when an input stream ends. The default value is 2 seconds.

    



    dropout_transition means it will SKIP given seconds, right ? So if I set dropout_transition=1000(very large number) then regardless of video length FFmpeg will drop/skip audio transition for provided seconds. Again, please do correct me if I have made wrong assumption.

    



    3) I have tried many other solutions without any luck and now I am relying profoundly on the provided solution. Is there any drawback to the above hacky solution ?

    


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