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Autres articles (41)
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Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (4984)
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How to extract frames in real time from the MediaStream object returned from the frontend in backend
23 mai 2023, par Darwin Swartzis it possible to extract frames in real-time on the backend from a MediaStream object returned from the frontend ? something like :- instead of extracting frames from a canvas element in frontend and sending those frames to the backend in real time, can we send just the
stream
instance to the backend and extract frames there in real time until the user stops the recording ?

chrome.tabCapture.capture({ audio: false, video: true }, function(stream) {
 // Use the media stream object here
});



I am using tabCapture api which returns a
stream
, now I want to send thisMediaStream
instance in real time to the backend and extract frames there and edit something on them in real-time using OpenCV or FFmpeg. is this something technically possible ?

One approach I have seen is


chrome.tabCapture.capture({ audio: false, video: true }, function(stream) {
 video.srcObject = stream
 const canvas = document.createElement('canvas');
 const ctx = canvas.getContext('2d');
 ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
 const imageData = canvas.toDataURL('image/jpeg');
});



drawing each frame on top of a canvas and capturing those frames from it (in the frontend itself)and sending those frames in real-time to the backend using web sockets. I am not sure about this approach as this might be bad for frontend memory wise,


What could be a more efficient way of implementing real-time frame editing with frame manipulation libraries like OpenCV and FFmpeg


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What kind of library can I use to edit video in real time ? [closed]
14 avril 2020, par DepressingUtopianI am developing a video editor on Android (Java). For video encoding, I use a third-party library built on FFMPEG.



https://github.com/tanersener/mobile-ffmpeg



The problem is that everything that happens in FFMPEG is saved to disk ... For example, you cannot apply a filter to real-time video, you have to wait until the result of applying the filter is reset to disk and counted and displayed on VideoView. Tell the library with which you can apply a filter to a piece of video and see it in real time. Or for example, change the contrast of the video and see it on the VideoView.



Perhaps there is a way to redirect the output stream of encoded video using FFMPEG directly to VideoView ?


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how can I tell in real time the flow of my IP camera with node JS ?
15 avril 2022, par C_BbrahimWhat method should I apply to read in real time the stream of my IP camera using Node Js and the RTSP communication protocol ?


Original Question :
comment je peux dire en temps réel le flux de mon camera IP avec node JS ?
Original text :
(Quel méthode dois je appliquer pour lire en temps réel le flux de mon camera IP en utilisant Node Js et le protocole de communication RTSP ?)