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Médias (16)

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  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • 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 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

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  • 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)

  • Merge commit ’1232a1647ab27e024a3baf4d01d40c8d08d6ced9’

    17 mai 2013, par Michael Niedermayer
    Merge commit ’1232a1647ab27e024a3baf4d01d40c8d08d6ced9’

    * commit ’1232a1647ab27e024a3baf4d01d40c8d08d6ced9’ :
    
  Apple Intermediate Codec decoder
    
  movenc : Don’t add base_data_offset in tfhd for PIFF files
    

    Conflicts :
    
	Changelog
    
	libavcodec/allcodecs.c
    
	libavcodec/avcodec.h
    
	libavcodec/codec_desc.c
    
	libavcodec/version.h
    

    Merged-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] Changelog
    • [DH] configure
    • [DH] doc/general.texi
    • [DH] libavcodec/Makefile
    • [DH] libavcodec/aic.c
    • [DH] libavcodec/allcodecs.c
    • [DH] libavcodec/avcodec.h
    • [DH] libavcodec/codec_desc.c
    • [DH] libavcodec/version.h
    • [DH] libavformat/isom.c

  • Voxware MetaSound decoder

    5 août 2013, par Kostya Shishkov
    Voxware MetaSound decoder
    • [DBH] Changelog
    • [DBH] configure
    • [DBH] doc/general.texi
    • [DBH] libavcodec/Makefile
    • [DBH] libavcodec/allcodecs.c
    • [DBH] libavcodec/metasound.c
    • [DBH] libavcodec/metasound_data.c
    • [DBH] libavcodec/metasound_data.h
    • [DBH] libavcodec/twinvq.c
    • [DBH] libavcodec/version.h

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