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  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

Sur d’autres sites (6044)

  • Using ffmpeg to encode web dash and audio drift

    1er octobre 2016, par John Joske

    I’m trying to use ffmpeg to create webm-dash encoded files from a usb web cam. Adapted from this example http://wiki.webmproject.org/adaptive-streaming/instructions-to-do-webm-live-streaming-via-dash

    I have managed to get something nearly works with the following command :

    ffmpeg -f video4linux2 -framerate 30 -s 640x360 -i /dev/video0
    -thread_queue_size 512 -f alsa -ar 44100 -ac 2 -i hw:2 -map 0:0 -pix_fmt yuv420p -c:v libvpx-vp9 -s 640x360 -keyint_min 60 -g 60 -speed 6 -tile-columns 4 -frame-parallel
    1 -threads 8 -static-thresh 0 -max-intra-rate 300 -deadline realtime
    -lag-in-frames 0 -error-resilient 1 -f webm_chunk -header video_360.hdr" -chunk_start_index 1 video_360_%d.chk -map 1:0 -c:a libvorbis -b:a 128k -ar 44100
    -f webm_chunk -copytb 1 -audio_chunk_duration 2000 -header video_171.hdr -chunk_start_index 1 video_171_%d.chk

    However over a period of time the audio chunks slowly get behind the video chunks, can anyone suggest a way to ensure they stay the same.

  • Dash JS Player Cross Browser Compatibility

    21 mai 2015, par JJ The Second

    I am conducting a research for my company streaming service. I found dash.js for adaptive streaming which is a perfect solution along with ffMpeg for transcoding.

    So how this solution works is to create bunch of files served in .mpd format. Now the questions I have :

    1. Do you think this a early stage and I should wait before start using DASH.JS ? Do you think there is a better solution for safe and fast streaming ?

    2. Player options : So far the only player I found was this http://dashif.org/reference/players/javascript/1.0.0/

      I have no idea how compatible it is with browsers and what limits I’ll be facing if I chose it. Is there any other solid solution for this ?

    3. Do you guys think I’m going wrong direction for this ?

    4. What are my server requirements to run these technologies ? I have a 500MBs, 64GB Ram, 24 Core, 2TB beast, does this do the job ?

  • dashenc : Write out DASH manifest immediately in streaming mode

    8 juin 2021, par Kevin LaFlamme
    dashenc : Write out DASH manifest immediately in streaming mode

    When streaming mode is enabled with fMP4/CMAF for DASH output, the
    
segment files are available to read by players as soon as the first byte
    
is written instead of only after the file is fully written. The DASH
    
manifest currently only gets written when the final write to the segment
    
file occurs. This means that players cannot stream the first segment
    
while it is being written.
    

    When -lhls is enabled with MP4 segments the HLS manifest is written
    
immediately to advertise the in-flight segments. This change adds the
    
same behavior for the DASH manifest so players can stream it
    
immediately.
    • [DH] libavformat/dashenc.c

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