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Autres articles (96)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

Sur d’autres sites (5223)

  • mp4 files / SSTS info

    3 avril 2017, par Thomas

    I am trying to find the fastest way to get a list of all I-frames in a movie.

    So far, I tried ffprobe, but it is quite slow and I have been looking for a faster solution.

    The other option I found is using the mp4parser tool ; it outputs a file with this sectio, the SSTS info :

    -------------------------------------------------------------------------
    
/moov/trak/mdia/minf/stbl/stss                              @ 0x1c152d8
    
  Box size: 0x44    version: 0x0    flags: 0x0
    
  entry_count:              0xd
    
    sample_number:
    
     0x1    0x12d    0x259    0x385    ....

    I can see that I have 13 I frames and they’re spaced 300 frames apart (from the 4 values displayed)

    Is the spacing of I frames constant through movies ? or do I need to write my own SSTS parser to get the whole list ?

  • avcodec/libx264 : leave full range flag unchanged if unknown

    17 août 2021, par Jan Ekström
    avcodec/libx264 : leave full range flag unchanged if unknown

    By default the x264 full range flag is set to -1. By not setting
    
it to something else, we can let libx264 handle the RGB case.
    
Additionally, change the preference order to user-specified range
    
first, and then any fall-back logic left for the YUVJ pix_fmts.
    

    Fixes the capture part of #9374
    • [DH] libavcodec/libx264.c

  • Revision 0a2b25dcb9 : configure : add —enable-coefficient-range-checking This commit adds a configure

    29 juillet 2014, par Yaowu Xu

    Changed Paths :
     Modify /configure


     Modify /vp9/common/vp9_idct.h



    configure : add —enable-coefficient-range-checking

    This commit adds a configure time option used to enable strict error
    checking in decoder to make sure intermediate stage cofficients of
    inverse transforms are within valid range of signed 16 bit integer.

    For valid VP9 input streams, intermediate stage coefficients should
    always stay within the range of a signed 16 bit integer. Coefficients
    can go out of this range for invalid/corrupt VP9 streams. However,
    strictly checking this range for every intermediate coefficient can
    be a burden for decoder, therefore such validation is only enabled
    with configure option —enable-coefficient-range-checking.

    Change-Id : I47d47c8c4e48a922c3d223ca59064f51b3f0f5ed

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