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  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Possibilité de déploiement en ferme

    12 avril 2011, par

    MediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
    Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)

Sur d’autres sites (8437)

  • MP4Box : Concatenating track ID 1 even though sample descriptions do not match

    29 avril 2021, par Lysander Cox

    Essentially, I wish to concatenate a series of videos using MP4Box. When I attempt to do so, I receive the following error :

    


    No suitable destination track found - creating new one (type soun)
0.500 secs Interleaving 


    


    I can circumvent the issue, at least temporarily, by adding a -force-cat parameter to the MP4Box command. However, this creates issues with the alignment of audio and video and produces the following warning :

    


    Concatenating track ID 1 even though sample descriptions do not match


    


    Now, as far as I can tell, this has to do with differing parameters between video types. I will display the ffprobe output of each video type below in order to hopefully shed some light on the issue.

    


    VIDEO TYPE 1 FFPROBE OUTPUT :

    


    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '0.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:00:02.25, start: 0.000000, bitrate: 851 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 816 kb/s, 4 fps, 4 tbr, 16384 tbn, 8 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 32 kb/s (default)
    Metadata:
      handler_name    : SoundHandler


    


    VIDEO TYPE 2 FFPROBE OUTPUT :

    


    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'static.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.78.100
  Duration: 00:00:01.00, start: 0.000000, bitrate: 662 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 654 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    Metadata:
      handler_name    : VideoHandler



    


    Can anyone identify what the incongruity between video types is and how I can resolve it ? Thanks.

    


  • How to compare the difference between 2 videos color in ffmpeg ?

    3 décembre 2014, par nico_lab

    I have read How to compare/show the difference between 2 videos in ffmpeg ? , but "blend=all_mode=difference" is green.
    How do I get more colorful diffrence using blend filter ?

    sample command is

    ffplay -f lavfi "movie=left.mp4,split[a1][a2]; movie=right.mp4,split[b1][b2]; [a1][b1]blend=all_mode=difference[blend];[a2]pad=2*iw:2*ih[left];[left][b2]overlay=w[tmp];[tmp][blend]overlay=0:h"

    using "hue=s=0", color is chenge monochrome.

    ffplay -f lavfi "movie=left.mp4,split[a1][a2]; movie=right.mp4,split[b1][b2]; [a1][b1]blend=all_mode=difference,hue=s=0[blend];[a2]pad=2*iw:2*ih[left];[left][b2]overlay=w[tmp];[tmp][blend]overlay=0:h"

    The goal is this video. if you have a niconico account.
    http://www.nicovideo.jp/watch/sm24864058

    if you don’t have a niconico account, embed page is
    http://www.nicozon.net/watch/sm24864058

  • facing problem in downloading the audio data of a trimmed youtube video using youtube-dl and ffmpeg libraries

    15 mai 2022, par rkc

    I'm trying to download the audio content of a trimmed YouTube video using youtube-dl (v2021.12.17) and FFmpeg (v4.2.2) libraries in python, on Windows 10 PC. I am able to download the audio data when the command is executed on the Pycharm terminal, but not able to download the same content when using os.system() command.

    


    For example, I'm able to download the data when I execute

    


    "ffmpeg -ss 30 -t 10 -i $(youtube-dl -f best -g https://www.youtube.com/watch?v=3NGZcpAZcl0) -- output1.wav"


    


    command on the Pycharm terminal.

    


    But, i'm getting an error, when I try to execute the same in the Editor window as shown below,

    


    os.system('ffmpeg -ss 30 -t 10 -i $(youtube-dl -f best -g https://www.youtube.com/watch?v=3NGZcpAZcl0) -- output1.wav')

error: $(youtube-dl: No such file or directory


    


    I also tried enclosing the $() link in quotes and then executed it. But, after doing this, I am getting a different error as shown below

    


    os.system('ffmpeg -ss 30 -t 10 -i "$(youtube-dl -f best -g https://www.youtube.com/watch?v=3NGZcpAZcl0)" -- output1.wav')

error: $(youtube-dl -f best -g https://www.youtube.com/watch?v=3NGZcpAZcl0): Invalid argument


    


    So, can any of you help me in resolving this error ?

    


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