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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (72)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
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 (6849)
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How to set the value of an arbitrary pixel in ffmpeg ?
14 mai 2017, par NebI want to modify the rgb value of each pixel inside ffmpeg.
I need to implement the following function :
A[x + expr_1][y] = expr_2
where x and y are the current sampled pixel, A is the input frame whose pixel need to be modified and expr_1, expr_2 are two independent expressions.
I tried using the geq filter but it seems there no way to set the value of a pixel other than from that currently sampled. For istance, the function p(x,y) only returns the value of the pixel at the specified location, but doesn’t allow to set a value for that pixel. In other word, ffmpeg seems allowing only something like :
A[x][y] = expr
Is there a way to tell ffmpeg to set the value of a specific pixel ?
Thanks for your time.
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Screenshot of the Nexus One from adb ?
23 avril 2015, par MarcusMy goal is to be able to type a one word command and get a screenshot from a rooted Nexus One attached by USB.
So far, I can get the framebuffer which I believe is a
32bit xRGB888
raw image by pulling it like this :adb pull /dev/graphics/fb0 fb0
From there though, I’m having a hard time getting it converted to a png. I’m trying with ffmpeg like this :
ffmpeg -vframes 1 -vcodec rawvideo -f rawvideo -pix_fmt rgb8888 -s 480x800 -i fb0 -f image2 -vcodec png image.png
That creates a lovely purple image that has parts that vaguely resemble the screen, but it’s by no means a clean screenshot.
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Find bytes range of webm video for specified segment
21 mai 2024, par M2shI have a Video in webm format (like video.webm the duration is 60 seconds)

I want to get specified segment of video (i.e split video) with http header range (Range : 100-200).

In another word :

I want to get a section of video (e.g. from second 4 to 12) but I don't want to use any converter like ffmpeg. I want to send http request to server and get specified range of webm file.

Can I use this method (http range header) ?


Thanks