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Médias (1)
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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (56)
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Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras. -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Changer son thème graphique
22 février 2011, parLe thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
Modifier le thème graphique utilisé
Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
Il suffit ensuite de se rendre dans l’espace de configuration du (...)
Sur d’autres sites (4916)
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How can I split an RTSP stream so that I can both save it to files and apply a motion detection client ? (e.g. ffmpeg, motion)
1er septembre 2022, par Pat NiemeyerI’ve been using "motion" successfully to read an rtsp stream and save motion triggered events.


motion -c motion.conf # config file has the rtsp url and other params


However I’d like to both save the full stream and analyze for motion in this way. I know that I can capture the stream to files with ffmpeg something like this :


ffmpeg -i rtsp://mystream -vcodec copy -acodec copy -map 0 -f segment -segment_time 300 -segment_format mp4 "ffmpeg_capture-%03d.mp4"


Is there is a way to split / duplicate the rtsp stream (perhaps using ffmpeg again) so that I can have both motion and ffmpeg processes looking at it simultaneously ? Alternately is there some option on motion that I’m missing that would automatically save both the raw video and the motion segments ?


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Nextjs/React/JS How compress video file uploaded by user through input (client side preferred)
1er novembre 2022, par vana22I have made a basic app where the user can upload a video file through an input.
As you can see in the code i also retrieve the duration and the size of the initial video.


Now the question is, how i can compress the video file in the function "compressvid" so that the size of the video becomes massively smaller (at later stage i want to upload these videos to firebase firestore).
I'e read something about ffmpeg but wasn't able to figure out how to use it here.
I prefer it to be client side as the videos a client can upload are at max 30sec long.
If client side is not possible how would it work server side ?


import Head from 'next/head'
import styles from '../styles/Home.module.css'
import { useState, useEffect } from 'react'

export default function Home() {

 const [videofile, setVideo] = useState("")
 const [viddur, setviddur] = useState("")


 useEffect(() => {
 // only run this if videofile exists
 if (videofile != "") {
 console.log("compress video now ")
 console.log(videofile.type)


 // get duration of video by creating a theoretical video component
 var video = document.createElement('video');
 video.preload = 'metadata';
 video.onloadedmetadata = function() {
 window.URL.revokeObjectURL(video.src);
 // here now can check if video is too long
 setviddur(video.duration)
 }
 video.src = URL.createObjectURL(videofile)
 
 }
 }, [videofile]);

 const clickedvideo = () => {
 console.log("clicked video")
 }

 const compressvid = () => {
 // here need to compress the video so that the size is smaller: preferred client-side; if that's not possible howis it posssible server side or with a cheap api
 }

 return (
 <div classname="{styles.container}">
 
 
 
 
 

 <main classname="{styles.main}">
 <h1 classname="{styles.title}">
 Video compressor
 </h1>
 <p>Size of video before: {videofile.size}</p>
 <p>Duration of video: {viddur}</p>
 <p>Size of video after: { }</p>
 <input classname="{styles.videoinput}" type="file" accept="video/mp4,video/x-m4v,video/*" />> setVideo(e.target.files[0])}>
 <div>
 {(videofile != "") ? <video autoplay="autoplay" loop="loop" src="{URL.createObjectURL(videofile)}" width="300px" height="300px"></video> : null}
 </div>
 </main>
 </div>
 )
}


I tried to compress a video uploaded by a user but didn't figure out how to solve it.


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Get image from webcam, convert that image into something else, and returning it back to the client
29 janvier 2023, par immigration9I have some questions on choosing the right architectural decision to solve my problem.


I am planning to create an app, which takes the


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input from a client's (a browser) webcam,


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sending the input to the server (whether frame by frame, or just live stream video)


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getting each frame from the server (into a image)


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convert the image using some technology (let's say like a tiktok filter)


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returning the image back to the client in real time.














Except for the phase 4 which the technology can only be applied on an image,
Everything else can be changed.


I'm targeting 30fps (or at least 20) with 1080p quality.


The language or framework is completely agnostic as I do not have any preference. Right now, I am thinking of using React with Node, but I'm opened to other options as well. (eg. Python maybe. Language doesn't matter)


If anyone have some prior experiences, can you teach me the best way ?


I've tried to create the image blob from client and send it to the server using socket.io but it seemed too slow to use when targeted at 30fps on 1080p image.


I'm currently looking at WebRTC with fluent-ffmpeg, but not sure if it's the right way.


Any kind of help will be appreciated.


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