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  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • 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 (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (12429)

  • RTMP streaming without flash and low latency

    4 juin 2020, par Ruben Sanchez Castellano

    I have a server that currently streams out RTMP media and I need to play it with minimum delay (2-3 seconds).
Now I'm using CRTMPServer to consume the stream but, since there is no RTMP player without flash dependency, this solutions does not work for me because I need to play it embedded into a web page.

    



    At this point, I tried Nimble Streamer but I only could consume HLS, DASH and SLDP. HLS and DASH has 10 second delay so I discard these approaches.
SLDP has low latency but is a closed protocol and there is only one player (closed but freeware).

    



    On the other hand, there is RTSP but there are no HTML5 players for it. But I couldn't consume RTSP streams from Nimble neither.

    



    Any other ideas ?

    


  • How to segment audio and video to the same segments number ?

    24 décembre 2019, par julian zapata

    I’ve extracted audio and video from the same mp4 file and created different variants for different resolutions. When I segment the videos and the audio file with MP4Box, the video segments are the same segments number but the audio segments have one more. I need the video and audio segments to be the same number to use with dash.

    I’m using the next commands to produce the video and audio files :

    Command to extract the audio from mp4 file :

    ffmpeg -y -i "transformers.mp4" -c:a aac -b:a 192k -vn "transformers_audio.m4a"

    Produce each variant of the video with the next command modifying the resolution and bitrate parameters :

    ffmpeg -i transformers.mp4 -c:v libx264 -r 24 -x264opts "keyint=48:min-keyint=48:no-scenecut" -an -vf scale=640:360 -b:v 750k -dash 1 transformers_640x360_750k.mp4

    Generate the mpd file and segment the videos and audio each 4 seconds with :

    mp4box -dash 4000 -profile "dashavc264:live" -bs-switching no -sample-groups-traf \ 
    
-out output4\ 
    
transformers.mpd \ 
    
transformers_480x270_400k.mp4 \ 
    
transformers_640x360_800k.mp4 \ 
    
transformers_960x540_1200k.mp4 \
    
transformers_1280x720_1500k.mp4 \ 
    
transformers_1920x1080_4000k.mp4 \
    
transformers_audio.m4a

    This produces 36 segments for each variant of the video and 37 for the audio. How to solve this little variation ? How to make the audio segments number exactly the number of video segments ?

  • FFmpeg option to generate a .m4s file every second

    29 janvier 2020, par Adrian Angkajaya

    I am trying to stream my live recording from a camera (web cam/ ip cam) to my web application. The streaming technique I use is MPEG-DASH, which has manifest in MPD format. To generate an MPD format from the web-cam, I use FFmpeg tool in shell command line :
    ffmpeg -re -y -f dshow -i video="Logitech HD Webcam C525" -c:v libx264 -c:a libfdk_aac -f dash "manifest.mpd". This code will generate a video chunk in .m4s format every 5-8 seconds.

    Question is, what FFmpeg option can I use to generate a .m4s file every second instead of every 5-8 seconds ? I suppose it has something to do with segment ?

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