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Autres articles (55)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    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 (...)

Sur d’autres sites (11243)

  • Why psnr values generated by ffmpeg is inf？

    2 décembre 2020, par Lin Lingfeng

    I use ffmpeg to calcute PSNR value.
    
OS : Ubuntu-18.04
    
Commond :

    


    ffmpeg -i ../dataset/1080p-1k_rename/ggg_30_.jpg -i ../dataset/decode_dir_1k/ggg_30_.jpg -lavfi psnr="stats_file=./jpg_name.log" -f null -


    


    Result :

    


    ffmpeg version 4.3.1-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
...
...

Output #0, null, to 'pipe:':
  Metadata:
    encoder         : Lavf58.45.100
    Stream #0:0: Video: wrapped_avframe, yuvj420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
    Metadata:
      encoder         : Lavc58.91.100 wrapped_avframe
frame=    1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A speed=1.74x    
video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[Parsed_psnr_0 @ 0x7461800] PSNR y:46.226028 u:inf v:inf average:47.986940 min:47.986940 max:47.986940


    


    u:inf v:inf
Why U and V are inf ?

    


  • disable muxing in YOUTUBE-DL

    3 février 2020, par user3515562

    I want to disbale post process in youtube-dl(2020.01.24).
    My batch file contains

    set /p ytlink=Enter the link of Youtube Video:-    
    
youtube-dl -x -o D:\%%(title)s.%%(ext)s %ytlink%  
    
pause  

    The youtube-dl first downloads webm file or any other file than use post process ffmpeg.exe to convert it.
    I want to disable post process.Their must be no post process happening after youtube-dl download.

    - x is the option to only download audio file of the YouTube video in webm format .There is no post processing involved.But youtube-dl by default tries to convert the webm file to some other format, which is post processing.Post processing of audio file by default is one that i want to disable
    OS=Windows 10

  • libavcodec/libx265 : add user data unregistered SEI encoding

    12 juillet 2021, par Brad Hards
    libavcodec/libx265 : add user data unregistered SEI encoding

    MISB ST 0604 and ST 2101 require user data unregistered SEI messages
    
(precision timestamps and sensor identifiers) to be included. That
    
currently isn't supported for libx265. This patch adds support
    
for user data unregistered SEI messages in accordance with
    
ISO/IEC 23008-2:2020 Section D.2.7
    

    The design is based on nvenc, with support finished up at
    
57de80673cb
    

    Signed-off-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>
    • [DH] libavcodec/libx265.c

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