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  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • 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 (...)

  • MediaSPIP : Modification des droits de création d’objets et de publication définitive

    11 novembre 2010, par

    Par défaut, MediaSPIP permet de créer 5 types d’objets.
    Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
    Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...)

Sur d’autres sites (8772)

  • ffmpeg to normalize loudness of a video

    16 décembre 2022, par A Person

    I wanted to know if there was a way for me to normalised the sound from a video to EBU R128 standard.

    


    Current I am trying to do the 2 step bypass but I am unsure where I am going wrong.

    


    these are the command I did :

    


    ffmpeg -i D:\Person\Documents\Projects\IngestQC\ABN_.mxf -af loudnorm=I=-23:dual_mono=true:TP=-2:LRA=7:print_format=summary -f null -

    


    The result is this :

    


    "
[Parsed_loudnorm_0 @ 000002107bee2dc0]
Input Integrated:    -17.4 LUFS
Input True Peak:      +0.0 dBTP
Input LRA:             8.4 LU
Input Threshold:     -27.9 LUFS

Output Integrated:   -22.9 LUFS
Output True Peak:     -4.2 dBTP
Output LRA:            6.4 LU
Output Threshold:    -33.2 LUFS

Normalization Type:   Dynamic
Target Offset:        -0.1 LU
"


    


    After that, I am doing this

    


    ffmpeg -i D:\Person\Documents\Projects\IngestQC\abn.mxf -c:v copy -c:a pcm_s24le -ac 2 -af loudnorm=I=-23:TP=-2:LRA=7:measured_I=-17.4:measured_TP=0:measured_LRA=8.4:measured_thresh=-27.9:offset=-0.1:linear=true:print_format=summary -ar 48000 D:\Person\Documents\Projects\IngestQC\abn_done.mxf

    


    However, when testing this against eFF to see if it is EBU R128 compliant (-23), it says that it's not compliant.

    


    eFF says its value was :

    


    Channel Group Information
Number of Groups: 2
Channel Group Layout: Mono_Mono
Channel Group Name: MonoOne
Loudness Specification: EBU R128
Loudness Units: LUFS
Program Loudness Target: -23.0 LUFS
Program Loudness: -26.0 LUFS
Loudness Range: 6
PPM Scale: BBC
PPM Threshold: 8.00
Max PPM: 6.62
True Peak Threshold: -3.00 dBTP
Maximum True Peak: -5.00 dBTP
Attenuation required for file to meet target: 3.0
Channel Group Name: MonoTwo
Loudness Specification: EBU R128
Loudness Units: LUFS
Program Loudness Target: -23.0 LUFS
Program Loudness: -26.0 LUFS
Loudness Range: 6
PPM Scale: BBC
PPM Threshold: 8.00
Max PPM: 6.62
True Peak Threshold: -3.00 dBTP
Maximum True Peak: -5.00 dBTP
Attenuation required for file to meet target: 3.0
1


    


    I am not sure what i am doing wrong

    


    I want to know if there is a way to get it to give the correct audio loudness while keeping it the same format of mxf

    


  • ffmpeg dont change time duration

    26 mars 2017, par combo_ci

    I tried to convert a UDP stream (that genrated from DVB signal) to HLS m3u8 file with this code :

    ffmpeg -i udp://239.1.2.1:60001 -acodec aac -strict -2 -vcodec libx264 -hls_wrap 100 -f hls /var/www/html/ts/1.m3u8

    and output m3u8 file is :

    #EXTM3U
    
#EXT-X-VERSION:3
    
#EXT-X-TARGETDURATION:3
    
#EXT-X-MEDIA-SEQUENCE:66
    
#EXTINF:0.960000,
    
21.ts
    
#EXTINF:2.080000,
    
22.ts
    
#EXTINF:2.400000,
    
23.ts
    
#EXTINF:1.760000,
    
24.ts
    
#EXTINF:2.080000,
    
20.ts

    I tried to change the target duration to 10 in this file with the option -segment_time 10 but the target duration doesn’t change in m3u8 file, can anybody help me with this problem ?

  • Error while building ParaView on ubuntu

    21 février 2014, par user3337492

    I´ve got school project that I have to build ParaView and work with it in parallel.

    I am using this guide : http://paraview.org/Wiki/ParaView:Build_And_Install

    I´ve installed all the required packages and now it is time to "Configure ParaView With CMake".

    When I do this recomended code

    mkdir $HOME/projects/ParaView-bin

    cd $HOME/projects/ParaView-bin

    ccmake $HOME/projects/ParaView3

    the terminal shows this :

    CMake Error : The source "/home/kulis/projects/ParaView3/CMakeLists.txt" does
    not match the source "/home/kulis/projects/ParaView/CMakeLists.txt" used to
    generate cache. Re-run cmake with a different source directory.

    so instead of ParaView3 I use ParaView in code : ccmake $HOME/projects/ParaView

    then its possible to set all the variables and compile. But there comes the real problem. When i want to compile it, the terminal shows this error message :

    ERROR ADD_PARAVIEW_VIEW_MODULE called without VIEW_TYPE or VIEW_XML_GROUP

    CMake Error : The following variables are used in this project, but they are set to NOTFOUND.
    Please set them or make sure they are set and tested correctly in the CMake files :
    /home/kulis/projects/ParaView/VTK/IO/FFMPEG/FFMPEG_INCLUDE_DIR
    used as include directory in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG
    FFMPEG_avcodec_LIBRARY (ADVANCED)
    linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG
    FFMPEG_avformat_LIBRARY (ADVANCED)
    linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG
    FFMPEG_avutil_LIBRARY (ADVANCED)
    linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG
    FFMPEG_swscale_LIBRARY (ADVANCED)
    linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG

    And I do not really know what to do with it.

    I would very much appreciate your help. Thanks

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