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  • Demande de création d’un canal

    12 mars 2010, par

    En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
    Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • 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 (...)

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  • Pyzam gives an error, Pyzam does not work. [red]Error : ffmpeg file not found in $PATH[/red] [duplicate]

    12 mai 2024, par Да не знаю я

    I wanted to make a program that defines music, well, like shazam. I came across Pyzam. I tried it, it doesn't work. Returns the error : [red]Fatal : ffmpeg not found on $PATH[/red] to the command : pyzam — input mando.mp3. There is a mando.mp3 file in the folder where I run the program. I write the command on the command line. Windows 10. FFmpeg is available on disk C from the official website.

    


  • FFMPEG or LIBAV : Need examples of mixing/merging multiple audio tracks together

    23 juillet 2013, par ApolloKing

    What I have currently is an audio file that contains two audio streams, is there any FFMPEG/LIBAV code example(s) that provide insight of either

    1. Mixing these two or more tracks together into one stream (amix)
    2. Merging two tracks together into one stream, one in the left
      channel one on the right channel (amerge) ?

    Apparently I need use of the libavfilter library, so It would be great if there are examples using libavfilter for mixing purposes (ffmpeg official filtering example provided does not seem to be a match what I am looking for, but I may be overlooking it).

  • Metadata in mp3 not working when piping from ffmpeg with album art

    10 février 2019, par Cromon

    In my program I am piping a webm from a stream to ffmpeg and then pipe the output to a http request. Part of the process is adding metadata for the mp3. This has so far worked great. However after adding an image as album art it has started to act unexpected.

    First this is the command line I am using inside the program :

        val parameters = listOf("ffmpeg",
    
            "-i", "-",
    
            "-i", albumImage.absolutePath,
    
            "-map", "0",
    
            "-map", "1",
    
            "-c:v", "copy",
    
            "-f", "mp3",
    
            "-id3v2_version", "4",
    
            "-metadata", "title=${info.title}",
    
            "-metadata", "album=YouTube",
    
            "-metadata", "artist=${info.author}",
    
            "-metadata:s:v", "title=Album Cover",
    
            "-metadata:s:v", "comment=Cover (front)",
    
            "-"
    
    )

    It creates a valid mp3 file and I can find both the metadata and the image in the mp3 file, however when playing it none of them are displayed in VLC or anywhere else. To test various configurations I have converted it to the command line.

    In a first try I have saved the video and the image and stopped using pipes altogether, which results in this :

    ffmpeg -i video.webm -i image.jpeg -map 0 -map 1 -c:v copy -f mp3 -id3v2_version 4 -metadata title="Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)" -metadata album="YouTube" -metadata artist="Spinnin' Records" -metadata:s:v title="Album Cover" -metadata:s:v comment="Cover (front)" output3.mp3

    In this case all metadata including the album art is displayed in VLC.

    I then recreated the same thing as in my program, piping both video input and audio output, looking like this :

    ffmpeg -i - -i image.jpeg -map 0 -map 1 -c:v copy -f mp3 -id3v2_version 4 -metadata title="Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)" -metadata album="YouTube" -metadata artist="Spinnin' Records" -metadata:s:v title="Album Cover" -metadata:s:v comment="Cover (front)" - < video.webm > output3.mp3

    This file is the same as my programs output. Neither title nor album nor album image are displayed (however it can play the file)

    To test a few more options I have hardcoded the output file but pipe the input file like this :

    ffmpeg -i - -i image.jpeg -map 0 -map 1 -c:v copy -f mp3 -id3v2_version 4 -metadata title="Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)" -metadata album="YouTube" -metadata artist="Spinnin’ Records" -metadata:s:v title="Album Cover" -metadata:s:v comment="Cover (front)" output3.mp3 < video.webm

    Now the metadata is working again. When hardcoding the input video and piping the output, its again gone.

    So to sum up : When piping the output of ffmpeg the metadata in the file is not properly working. Interestingly the stderr output of ffmpeg looks quite similar

    Hardcoded output3.mp3 :

    ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
Input #0, matroska,webm, from 'pipe:':
    
  Metadata:
    
    encoder         : google/video-file
    
  Duration: 00:03:39.58, start: -0.007000, bitrate: N/A
    
    Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    
Input #1, image2, from 'image.jpeg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: 1466 kb/s
    
    Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (opus (native) -> mp3 (libmp3lame))
    
  Stream #1:0 -> #0:1 (copy)
    
Output #0, mp3, to 'output3.mp3':
    
  Metadata:
    
    TPE1            : Spinnin' Records
    
    TIT2            : Tiësto &amp; KSHMR feat. Vassy - Secrets (Official Music Video)
    
    TALB            : YouTube
    
    TSSE            : Lavf57.83.100
    
    Stream #0:0(eng): Audio: mp3 (libmp3lame), 48000 Hz, stereo, fltp (default)
    
    Metadata:
    
      encoder         : Lavc57.107.100 libmp3lame
    
    Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, q=2-31, 25 tbr, 25 tbn, 25 tbc
    
    Metadata:
    
      title           : Album Cover
    
      comment         : Cover (front)

    With pipe output :

    ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
Input #0, matroska,webm, from 'pipe:':
    
  Metadata:
    
    encoder         : google/video-file
    
  Duration: 00:03:39.58, start: -0.007000, bitrate: N/A
    
    Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    
Input #1, image2, from 'image.jpeg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: 1466 kb/s
    
    Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (opus (native) -> mp3 (libmp3lame))
    
  Stream #1:0 -> #0:1 (copy)
    
Output #0, mp3, to 'pipe:':
    
  Metadata:
    
    TPE1            : Spinnin' Records
    
    TIT2            : Tiësto &amp; KSHMR feat. Vassy - Secrets (Official Music Video)
    
    TALB            : YouTube
    
    TSSE            : Lavf57.83.100
    
    Stream #0:0(eng): Audio: mp3 (libmp3lame), 48000 Hz, stereo, fltp (default)
    
    Metadata:
    
      encoder         : Lavc57.107.100 libmp3lame
    
    Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, q=2-31, 25 tbr, 25 tbn, 25 tbc
    
    Metadata:
    
      title           : Album Cover
    
      comment         : Cover (front)

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