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Autres articles (60)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
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 (...) -
Sélection de projets utilisant MediaSPIP
29 avril 2011, parLes exemples cités ci-dessous sont des éléments représentatifs d’usages spécifiques de MediaSPIP pour certains projets.
Vous pensez avoir un site "remarquable" réalisé avec MediaSPIP ? Faites le nous savoir ici.
Ferme MediaSPIP @ Infini
L’Association Infini développe des activités d’accueil, de point d’accès internet, de formation, de conduite de projets innovants dans le domaine des Technologies de l’Information et de la Communication, et l’hébergement de sites. Elle joue en la matière un rôle unique (...)
Sur d’autres sites (6565)
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Is it possible to embed ffplay ?
18 mars, par EthanLffmpeg's viewer, ffplay, has a lot of great options for optimizing viewing experience. I've been able to get it to nicely display an RTSP stream at low latency. However, it's been difficult to include it in a GUI.


Is that possible ? Is there a GUI that does that ?


Note : I am NOT trying to embed in a browser, or just toss the window on top of a GUI.


Best solution : desktop GUI that includes ffplay in a widget


First alternative : desktop GUI that has variable opacity. If the ffplay window is layered below the GUI, and the GUI is transparent, it could look decent. However, some buttons would have to be visible, so the entire window can't be transparent.


Second alternative : disable the possibility of user interaction with the ffplay window. Then, the ffplay window could just be tossed to the side of the screen, and it would remain there as a split screen, without concern that a user could minimize it or move it.


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Enhance text image in x264encoding
23 août 2016, par useprxfI’m making use of x264 for remote desktop streaming. The goal is to achieve both low bitrate and high video quality within the computation budget. The current parameter set I used almost achieve this goal, but it fails in handling images with many texts (e.g. browsing websites schene). The text in image is blurred and affects the user experience.
I think it’s the quantization in x264 that causes this. The quantization after DCT transform will eliminate high frequency sinals which mainly correspond to texts in image.
So, my question is how to do improve the text quality in x264 encoding ?
My idea : when the bitrate stays at a low level for a period of time,
- set
crf
to be 0 (lossless) ; - encode current frame as an IDR frame and then send it ;
- recover the
crf
.
Also, a flag should be used to prevent resending when bitrate keeps low for a long time. I haven’t try this method since I don’t know how to mark a frame as an IDR frame manully and then encode it.
- set
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Custom container in FFmpeg's libavformat
16 novembre 2016, par Tiago TomásI have a media server in Java capable of reading from multiple audio/video containers, encoding and also delivery using a different set of containers. For this, I’m using FFmpeg by launching multiple processes from Java.
I’ve been tasked with implementing audio/video delivery using a custom (proprietary) container format that supports multiple audio/video codecs in order to integrate with another video delivery system.
I’m currently evaluating my options and I’ve reached the conclusion that I either :
- Export audio/video from FFmpeg using an easily parseable format and then simply convert into the proprietary format, or
- I modify libavformat itself in order to add the new container format
I’m strongly inclined to try the second approach but I’m pressed for time and as such, I would like to ask whether anyone has had experience with custom container formats and can provide me with some guidance.
If not, a recommendation on which container to use (that can be easily parsed) for the first approach would also be really helpful.
Thank you in advance.