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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 (81)
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Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP 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" (...)
Sur d’autres sites (7267)
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Matomo vs WP-Statistics – which web analytics plugin suits you best ?
2 avril 2020, par Joselyn Khor — Analytics Tips, Plugins -
Testing MPEG2 decoder stage by stage
21 février 2020, par Bhavesh SinghalI am writing a video decoder for MPEG2 Transport Streams and looking for test data. More specifically, I want to be able to compare the output of my decoder versus a reference set of outputs at each stage of the decoding pipeline (Inverse Quantization, Inverse DCT, etc).
Even if I can only compare 1 slice, that would be good enough.
EDIT : I mean specifically H.262.0 video stream/sequence
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Ffmpeg libx264rgb and libx264 yuv444p gives very different results
1er février 2020, par Mustafa Akın YılmazI am trying to create a lossy compressed video from several .png files. I am using the following ffmpeg commdans :
ffmpeg -i %8d.png -frames:v 4 -c:v libx264rgb -pix_fmt rgb24 -g 4 -qp 30 -r 25 out.mp4
and
ffmpeg -i %8d.png -frames:v 4 -c:v libx264 -pix_fmt yuv444p -g 4 -qp 30 -r 25 out.mp4
Then I am extracting frames from the videos with the command :
ffmpeg -i out.mp4 -r 25 %8d.png
When I compare the bitrate and PSNR, I found that the yuv444p gives about 2 db gain at the same bitrate. Why such a huge difference is observed even I did set yuv444p which does not apply chroma subsampling ?