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Autres articles (111)
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Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
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 -
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 (...)
Sur d’autres sites (11158)
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MPEG4 quality saved in MATLAB
17 août 2017, par guytsI need to get an mpeg4 file to use in another application, from an original mpeg4 video I loaded into matlab and edited (frame by frame).
To do so, I tried using VideoWriter, setting the quality to 100% :newVid = VideoWriter(outputfilename, 'MPEG-4');
newVid.FrameRate = fps;
newVid.Quality = 100;However, the result I’m getting is very poor and if the original unedited video size was 50MB, the one I get post-edit in matlab is around 20MB, and I don’t know how to keep the quality and size as they were.
I also tried saving as .avi and converting to mpeg4 with ffmpeg, but it gave even poorer results.
Any ideas ? -
why is the combined video slow when reading ?
20 juin 2022, par vuvu 700I wrote a script to download complete twitch void, It works by downloading each fragment of the video separately, they are .This file format. In order to combine them all I append each new fragment at the end of the file which is very fast and efficient.
My problem That they are not combined at all so when reading the video it is very slow to load while reading and can't even be loaded in Adobe Premiere.

I found a way to solve my problem using "ffmpeg -i input -codec copy output" but takes a LOT a time, even more time than to download the video.

I would like to know if there is a better way to combine the files or a more appropriate ffmpeg command ?


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OpenCV won't open some videos of many videos of the same format
2 octobre 2013, par OpenMindedI am using Visual Studio 2012 with OpenCV 2.4.6.
I have 4 videos that I recorded one by one with my Nokia Lumia 920. OpenCV won't open .mp4 format from my phone by the default. So I converted all these 4 videos using Sony Vegas to .mp4 with the SAME preferences for all of them. Now the problem is that OpenCV has a problem to open two of them. The other two works like a charm with no problem. Below is the information about codec that I used (Yes, it is the same for all videos) :
And this is the error :
Why is it so that they are the same type but only a few of them are loaded properly ?