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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (8)
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Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)
Sur d’autres sites (2541)
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How to dump ALL metadata from a media file, including cover image title ? [closed]
9 avril, par UnidealI have an MP3 song :


# ffprobe -hide_banner -i filename.mp3
Input #0, mp3, from 'filename.mp3':
 Metadata:
 composer : Music Author
 title : Song Name
 artist : Singer
 encoder : Lavf61.7.100
 genre : Rock
 date : 2025
 Duration: 00:03:14.04, start: 0.023021, bitrate: 208 kb/s
 Stream #0:0: Audio: mp3 (mp3float), 48000 Hz, stereo, fltp, 192 kb/s
 Metadata:
 encoder : Lavc61.19
 Stream #0:1: Video: png, rgb24(pc, gbr/unknown/unknown), 600x600 [SAR 1:1 DAR 1:1], 90k tbr, 90k tbn (attached pic)
 Metadata:
 title : Cover
 comment : Cover (front)



The task is to save its metadata to a text file and restore from that file later. Both goals should be accomplished with ffmpeg.


The simpliest method is to run :


# ffmpeg -i filename.mp3 -f ffmetadata metadata.txt



After that,
metadata.txt
contains :

;FFMETADATA1
composer=Music Author
title=Song Name
artist=Singer
date=2025
genre=Rock
encoder=Lavf61.7.100



I got global metadata only, but stream-specific info (cover image title and comment in my case) are missing.


Google suggested a more complex form of the command above to extract all metadata fields without any exclusions :


# ffmpeg -y -i filename.mp3 -c copy -map_metadata 0 -map_metadata:s:v 0:s:v -map_metadata:s:a 0:s:a -f ffmetadata metadata.txt



But the output is exactly the same :


;FFMETADATA1
composer=Music Author
title=Song Name
artist=Singer
date=2025
genre=Rock
encoder=Lavf61.7.100



Again, no info about the attached image.


Please explain what am I doing wrong.


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Revision 32594 : plugins en minuscules, et alias pour les noms de sites
1er novembre 2009, par fil@… — Logplugins en minuscules, et alias pour les noms de sites
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Revision 30966 : eviter le moche ’doctype_ecrire’ lors de l’upgrade
17 août 2009, par fil@… — Logeviter le moche ’doctype_ecrire’ lors de l’upgrade