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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (96)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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 (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe 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 (...)
Sur d’autres sites (6588)
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HLS to MPEG DASH
15 avril 2018, par MaximilianIm currently working on a platform that relies on MPEG Dash to deliver audio and video to the browser.
For onDemand im using ffmpeg to encode videos to h264/aac and MP4Box to create the manifest.mpd file.
Now im trying to figure out how to create live MPEG Dash streams, more specifically encode hls live streams to MPEG Dash.- Do i need to reencode all the .ts segments to .mp4(h264/aac) segments, since chrome doesnt support mpeg2ts ?
- If so, how do i continuously reencode all the segments (different resolution, different bitrates)
- How do i create a dynamic manifest with MP4Box / how would the input parameter look like
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FFMPEG Dash with tiles of thumbnail images
31 juillet 2020, par martyn GilbertAs of DASH-IF IOP version 4.2, section 6.2.6 defines the notion of image-based tracks in DASH :
https://dashif.org/docs/DASH-IF-IOP-v4.3.pdf.



This is the ability to have an adaption set made up of mime type images that themselves are a strip of low resolution thumbnails. 
A player will use these thumbnails when the user hovers their mouse over the video timeline and get a 
preview of the the frame at that approximate timecode.



Theo player website has a page dedicated to this function for playback :
https://www.theoplayer.com/blog/in-stream-thumbnail-support-dvr-dash-streams



I need to generate a dash stream (not live) using ffmpeg that also contains these thumbnails. 
I already have an ffmpeg command that will generate the film strip of jpgs which outputs a thumbnail every 5 seconds of input video and joins 5 of these together in a single jpg :



ffmpeg -i INPUT -q:v 20 -vf "select=not(mod(n\,125)),scale=480:270,tile=5x1" -vsync vfr output%d.jpg



and the mpeg dash itself :



ffmpeg -i INPUT -y -map 0 -acodec aac -ac 2 -ar 48000 -s 960x540 -vcodec libx264 -f dash -preset veryfast -b:v:2 1500k -seg_duration 2 output.mpd



But I cannot find a way in ffmpeg to include the thumbnails in the dash mpd file.


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MP4Box Dash mpd not working
7 décembre 2017, par Durlabh SharmaI’m trying to make a DASH client with Exoplayer as client on Android side. I am able to create individual Dash streams for audio or video. But I am unable to create a stream that includes both audio and video in single mpd file.
For video, command used is :
MP4Box -dash 4000 -frag 4000 -rap -segment-name segment_ ../video_enc.mp4#video
For audio, command is :
MP4Box -dash 4000 -frag 4000 -rap -segment-name segment_ ../video_enc.mp4#audio
They both work perfectly fine. But when I go to create a single mpd, it creates mpd but it just doesn’t work. Even after creating all segments and fragments, it still fails to playCommand used is :
MP4Box -dash 4000 -frag 4000 -rap -bs-switching no -profile dashavc264:live -segment-name segment_ ../video_enc.mp4#audio ../video_enc.mp4#video