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Autres articles (57)
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XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...) -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
MediaSPIP en mode privé (Intranet)
17 septembre 2013, parÀ partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)
Sur d’autres sites (8358)
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prebuilt ffmpeg library for android
15 décembre 2014, par andruidoNice being here.
I researched a lot on the topic but now i am stuck.Currently i try to receive a udp stream within android, i am using the libraries from http://code.google.com/p/javacv/downloads/list, most of the things work fine. However if i try to use "avformat_network_init() ;" (thanks to this Receiving RTSP stream using FFMPEG library) i get the following error :
undefined reference to `avformat_network_init’
my guess is that the prebuilt library called "libavformat.so" does not contain the specific function, am i right ? if so, does anyone know where i can find the appropriate library ? I am developing on windows and failed already building it myself with cygwin and currently have not the option to install ubuntu or such.
thanks in advance.
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avcodec/vp8 : Do not use num_coeff_partitions in thread/buffer setup
30 septembre 2015, par Michael Niedermayeravcodec/vp8 : Do not use num_coeff_partitions in thread/buffer setup
The variable is not a constant and can lead to race conditions
Fixes : repro.webm (not reproducable with FFmpeg alone)
Found-by : Dale Curtis <dalecurtis@google.com>
Tested-by : Dale Curtis <dalecurtis@google.com>
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc> -
Detection of virtual background on video using ffmpeg
28 juillet 2021, par Marcos GI am trying with ffmpeg to detect the use of a virtual background on a video, like the ones used in Google Meet. I got some ideas, but none seem to work :


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- Egde color : When using a chroma key you can get shades of green/blue on the outline of the subject. This is called spill, and can be detectable, but gets discarded by the fact that you dont need a chroma key to fake a background (example : Google Meet).
- Still image : Most of virtual backgrounds are a still image pasted behind the subject. The problem with detecting this is that most of the real backgrounds also are like still images, without much movement.
- Blur : When faking a background without a chroma key the outline of the subject becomes very blurry (this is more noticeable when the subject moves), but I can't find a way to detect it using ffmpeg.








How can I do this ? I'm open to trying other tecniques such as AI.


Thanks in advance.


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