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Autres articles (21)
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Mediabox : ouvrir les images dans l’espace maximal pour l’utilisateur
8 février 2011, parLa visualisation des images est restreinte par la largeur accordée par le design du site (dépendant du thème utilisé). Elles sont donc visibles sous un format réduit. Afin de profiter de l’ensemble de la place disponible sur l’écran de l’utilisateur, il est possible d’ajouter une fonctionnalité d’affichage de l’image dans une boite multimedia apparaissant au dessus du reste du contenu.
Pour ce faire il est nécessaire d’installer le plugin "Mediabox".
Configuration de la boite multimédia
Dès (...) -
Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
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 (2824)
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How can I use the blackframe filter in ffmpeg to only encode images above a certain threshold ?
8 août 2012, par andyrooI am using ffmpeg to make timelapse movies from still images.
I see that I can use the blackframe filter to get a list of dark frames in a video, but I would like to skip encoding those frames all together.
Is there a way that I can use the blackframe filter to avoid encoding frames below the blackframe threshold ? Ideally I would be able to do this on a Win7 machine using batch/powershell/python.
Using another open source program to remove/delete black frames first would be acceptable too.
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Maintain aspect ratio when converting video ? - ffmpeg
27 décembre 2011, par RadiantHexI'm trying to convert movies from .avi to an iphone readable format
wherever I look, people suggest the following options for ffmpegffmpeg -s 320x240 -aspect 320:240 [...]
This does not bode well for videos with a different aspect ratio !
How can I keep the aspect ratio from changing ? Is there a way to set the size dynamically ?
e.g. have the height to be 240 and the width variable ?
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HTTP Live streaming iOS not refreshing the index .m3u8 file
27 février 2013, par Emerson FittipaldiI searched all similar questions on StackOverflow, but found none to answer my problem.
I am trying to stream some movies from my Linux computer (openSuSE 12.1) to my iPad. I convert them with ffmpeg, segment them with my own segmenter, place them in the www folder of my apache2 server and also place inside the .m3u8 playlist. Til here - all is ok !
I start playing the movie (HTML page with tag) and it plays nicely, but only the first five segments, which have been loaded with the first load of the playlist. The HTML page (the browser, or the player - no idea) does not refresh (re-download) the playlist from the server. Here is what my .m3u8 playlist file looks like :
#EXTM3U
#EXT-X-MEDIA-SEQUENCE:19
#EXT-X-TARGETDURATION:8
#EXTINF:8,
http://192.168.1.4/segment_19.ts
#EXTINF:8,
http://192.168.1.4/segment_20.ts
#EXTINF:8,
http://192.168.1.4/segment_21.ts
#EXTINF:8,
http://192.168.1.4/segment_22.ts
#EXTINF:8,
http://192.168.1.4/segment_23.tsSegments are in the same folder as the playlist file, segments are correctly encoded (because I can see at least the first five ones :D). I also watch the access_log from the apache server and I see the first load of the playlist, then the consequent load of all 5 segments and it stops till there. It doesn't even try to further refresh the m3u8 file.
If it matters - iOS 5.0, iPad 2, Wi-Fi version only, not jailbroken
Ideas ? What am I doing wrong ?