Recherche avancée

Médias (0)

Mot : - Tags -/presse-papier

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (67)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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 (9064)

  • How to stream raw H264 ? [closed]

    31 mars 2023, par Alexander Lazarenko

    I don't know anything about streaming, so don't judge me harshly.

    


    The program receives bytes from TCP stream, processes them and adds to byte array. This array contains raw H264 frames.

    


    If they are saved and then broadcasted, the broadcast will be interrupted. Is there something I can do to avoid restarting broadcast ?

    


    Thanks in advance

    


  • FFMPEG : Output to a new file after certain period of time with creation time stamp ?

    17 septembre 2015, par Anakooter

    Suppose I have a command :

    ffmpeg -f v4l2 -framerate 30 -video_size 640x480 -i /dev/video1 -c:v libx265 -x265-params bitrate=60:vbv-maxrate=60:vbv-bufsize=16:keyint=10:qcomp=0.5 -tune zerolatency -s 640x480 -preset ultrafast -pix_fmt yuv420p -r 5 -strict experimental -f somedate.ts

    What I want to do is that after 30 minutes ffmpeg starts writing the stream to new file with filename as time of creation of new file.

  • Is it possible to stream MJPEG content over MPEG-DASH ?

    26 juillet 2021, par Eloy Schultz

    I am trying to re-stream an MJPEG stream over dash using ffmpeg.

    


    I have an ESP32 camera module that outputs an MJPEG livestream at 192.168.2.128:81/stream (Arduino code here).
I can open this stream directly in the browser and see the video in realtime, but the camera will only allow for a single client at a time while I am in need of a multi client solution.

    


    What doesn't work

    
A solution I am currently trying to implement is to use a seperate server (Raspberry Pi) running apache and ffmpeg to re-stream the MJPEG content using DASH :


    ffmpeg -re -i http://192.168.2.128:81/stream -strict -2 -an -c:v copy -b:v 2000k -f dash -window_size 4 -extra_window_size 0 -min_seg_duration 2000000 -remove_at_exit 1 /var/www/html/out.mpd


    


    I get no errors when executing this command on the server.
I then use this ffmpeg-dash.html to display the video in the browser.
This code unfortunately fails, in Firefox the console reports the error :

    


    [72][Stream] No streams to play.


    


    followed by :

    


    Cannot play media. No decoders for requested formats: video/mp4;codecs="mp4v.6c";width="640";height="480"


    


    What does work

    
What is puzzling me is that the above code works fine if I replace the MJPEG livestream url with a sample .mkv file, so if I use


    ffmpeg -re -i /var/www/html/video.mkv -strict -2 -an -c:v copy -b:v 2000k -f dash -window_size 4 -extra_window_size 0 -min_seg_duration 2000000 -remove_at_exit 1 /var/www/html/out.mpd


    


    I can view the livestreamed sample video (video.mkv) without problems using the previously mentioned ffmpeg-dash.html file.
Furthermore, it seems that ffmpeg can read the MJPEG livestream without problems, since

    


    ffmpeg -t 10 -i http://192.168.2.128:81/stream -filter:v fps=15 -c:v flv test.flv


    


    returns a 10 second clip of the livestream succesfully.

    


    So to me it seems that the problem lies in how I combine the two. What am I missing ? Is it even possible to stream MJPEG content over MPEG-DASH ?
(I am new to this, sorry in advance for my ignorance)

    


Navigation