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Autres articles (111)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (...)

  • 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 (...)

Sur d’autres sites (14456)

  • Convert .flac to .mp3 with ffmpeg, avoid small silence ?

    19 septembre 2017, par RocketNuts

    I’m converting a bunch of .flac audio samples to .mp3 with ffmpeg. Some of these samples are supposed to loop, i.e. the end of the sample fits seamlessly to the beginning (no tick).

    Now no matter how high the mp3 quality setting I use, I keep getting about 0.05 sec of silence at the beginning of the resulting .mp3 which is not there in the original flac.

    Here’s a zoomed in Audacity view of the beginning and ending of both audio samples :

    Original flac :

    original

    Notice how the beginning and ending are both ’flat’, so they fit smoothly.

    Converted to mp3 :

    converted

    Notice how there is now suddenly a 0.05 sec silence, and the end doesn’t end exactly flat (on the baseline). Hence they don’t fit, and the tick and silence are clearly audible when playing in a loop.

    I’m using this for the conversion :

    ffmpeg -i foo.flac -acodec libmp3lame -ab 320k bar.mp3

    or this : (with the -q:a VBR setting)

    ffmpeg -i foo.flac -acodec libmp3lame -q:a 0 bar.mp3

    Either -q:a 0 or -ab 320k is supposed to give the highest possible quality, but I can’t get rid of that strange silence in the beginning and small cutoff at the end, which causes a tick when playing in a loop.

  • Diference between pkt_duration and pkt_duration_time in ffprobe

    16 décembre 2016, par albertoiNET

    When I execute next ffprobe command in an HLS stream with parameter to show frames in specific stream video in flat format and grep with ’pkt’ pattern, it returns this info :

    $ ffprobe -i http://xxxxxxxxxxxxxxxx/PCMDY_SUB.m3u8 -show_frames -select_streams v:0 -print_format flat | grep pkt
    
...
    
frames.frame.229.pkt_pts=2438664735,
    
frames.frame.229.pkt_pts_time=27096.274833,
    
frames.frame.229.pkt_dts=2438664735,
    
frames.frame.229.pkt_dts_time=27096.274833,
    
frames.frame.229.pkt_duration=3600,
    
frames.frame.229.pkt_duration_time="0.040000",
    
frames.frame.229.pkt_pos=13348,
    
frames.frame.229.pkt_size=2510,
    

    
frames.frame.230.pkt_pts=2438668335,
    
frames.frame.230.pkt_pts_time=27096.314833,
    
frames.frame.230.pkt_dts=2438668335,
    
frames.frame.230.pkt_dts_time=27096.314833,  
    
frames.frame.230.pkt_duration=3600,
    
frames.frame.230.pkt_duration_time="0.040000",
    
frames.frame.230.pkt_pos=15980,
    
frames.frame.230.pkt_size=2389,
    
...

    What is the difference between info with _time pattern and without it ?.

    I supposed that pkt_duration are in microseconds, and pkt_duration_time is in seconds. It’s true ?

  • Evolution #4754 : Mettre à jeu le jeu des icônes de extensions

    20 mai 2021

    Ah j’avais pas vu la notif, faudrait que je suive ce projet :)

    Bonne idée et d’accord avec le cahier des charges.
    La 1ère série retenue a l’air bien, simples et flat, mais pas trop : Papirus, Numix, Vimix
    Pas de préférence particulière pour l’une ou l’autre.

    Tu fais unr PR erational ?

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