Recherche avancée

Médias (0)

Mot : - Tags -/page unique

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (26)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (4112)

  • How to detect two identical audio/video files with different volume level ?

    3 juillet 2017, par Marina Rappoport

    I’m working on program that could compare 2 video files and show difference.
    I compare audio track of files using SOX and FFMPEG :

    1. invert one of the files (sox)
    2. merge other file and invert version of first (sox)
    3. detect silence (ffmpeg)

    But if two file differs only by volume level - all audio track will be detected as non-silent ranges.

    How to understand that 2 files have the same audio track, but with different volume level ?

    I tried to change sound level via sox : sox -v 1.1 input.wav output.wav
    And then compare statistical information (-n stat).
    It works fine. Result of division parameters audio2/audio1 :

        Samples read 1.00;
    
    Length (seconds) 1.00;
    
    Scaled by 1.00;
    
    Maximum amplitude 1.10;
    
    Minimum amplitude 1.10;
    
    Midline amplitude 1.10;
    
    Mean norm 1.10;
    
    Mean amplitude 1.00;
    
    RMS amplitude 1.10;
    
    Maximum delta 1.10;
    
    Mean delta 1.10;
    
    RMS delta 1.10;
    
    Rough frequency 1.00;
    
    Volume adjustment 1/1.10;

    BUT ! When I tried ffmpeg to change volume of video : ffmpeg -i input.mp4 -vcodec copy -af "volume=10dB" output.mp4 (or volume=volume=0.5) and than compared sox audio statistic : I can’t find any patterns...

    Samples read    1.00
    
Length (seconds)    1.00
    
Scaled by   1.00
    
Maximum amplitude   0.71
    
Minimum amplitude   0.64
    
Midline amplitude   -2401.73
    
Mean    norm    0.34
    
Mean    amplitude   0.50
    
RMS     amplitude   0.36
    
Maximum delta   0.37
    
Mean    delta   0.34
    
RMS     delta   0.36
    
Rough   frequency   0.99
    
Volume adjustment   0.71

    I will be grateful for any ideas and help.

  • avfilter/dnn_backend_tf : Remove one level of indentation

    7 mai 2024, par Zhao Zhili
    avfilter/dnn_backend_tf : Remove one level of indentation

    Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
    
Reviewed-by : Wenbin Chen <wenbin.chen@intel.com>
    
Reviewed-by : Guo Yejun <yejun.guo@intel.com>
    • [DH] libavfilter/dnn/dnn_backend_tf.c

  • avfilter/vf_framerate : limit the scene level max range

    24 septembre 2019, par Limin Wang
    avfilter/vf_framerate : limit the scene level max range

    Reviewed-by : Paul B Mahol <onemda@gmail.com>
    
Signed-off-by : Limin Wang <lance.lmwang@gmail.com>
    
Signed-off-by : Marton Balint <cus@passwd.hu>
    • [DH] libavfilter/vf_framerate.c

Navigation