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Sintel MP4 Surround 5.1 Full
13 mai 2011, par
Mis à jour : Février 2012
Langue : English
Type : Video
Autres articles (52)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
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.
Sur d’autres sites (10155)
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Best way to record a HTML Canvas/WebGL animation server-side into a video ?
19 novembre 2022, par AbhinavI have a set of animations which I can make in Canvas (fabric.js) or WebGL (three.js). I need to record them automatically, server-side, through a script and output a video file.



The animations include :



- 

- Pictures
- Videos (with audio)
- Other animations/effects









I have researched a lot during last few months on this.



Results

1. Use PhantomJS + FFMPEG

Run HTML Canvas animations on headless browser(PhantomJS) and record with FFMPEG. Here the issue is PhantomJS supports neither WebGL nor Video element. http://phantomjs.org/supported-web-standards.html
2. Use Websockets to send data back to server using DataURL

Here again, we will need to run the animations on browser (which we can't because we have to do everything on server).
3. Use node-canvas

This is a library by TJ Holowaychuk which allows rendering HTML Canvas on Node.js. But it has its own limitations plus I haven't really explored this field much. 
(If someone could shed more light on this library)


If anyone has done it before or can guide me somewhere useful.

All we need to do is use some data to create animations and record it into a video, everything on server side.

- Pictures
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With apulsator in ffempeg - How do I make so one side does not completely become silent ?
3 avril 2022, par corgrathI am trying to learn more about signal processing and the
apulsator
effect in ffmpeg.

http://ffmpeg.org/ffmpeg-filters.html#apulsator


With the most default example :


ffmpeg -y -i input.mp3 -af "apulsator=hz=0.0625:timing=hz:mode=sine" output.mp3


You can clearly hear that the sound travels from left to right and then back to left, as expected.


However, I am trying to understand how/if it is possible that sound volume does not completely becomes silent, but perhaps 10% of the volume, while the other side gets 90%.


What I am trying to achieve is that one side does not completely becomes silent.


If this cannot be achieved solely by the
apulsator
settings, what other effects or ways can I achieve this using ffmpeg ?

Any advice is appreciated !


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Revision 35436 : Petites pétouilles en passant par là (écriture aux dernières normes ...
22 février 2010, par marcimat@… — LogPetites pétouilles en passant par là (écriture aux dernières normes ISO)…