
Recherche avancée
Médias (1)
-
Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (101)
-
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.
Sur d’autres sites (11170)
-
Using ffmpeg to convert mp3 to mp4 - how to draw filename on generated video ?
22 mai 2020, par akourisUsing trial and error I am using the following script on an OSX, to bulk convert a whole folder full of mp3 files, to mp4, by looping a specific video file :



for i in *.mp3; do /usr/local/bin/ffmpeg -stream_loop -1 -i /path_to_filename.mp4 -c copy -v 0 -f nut - | /usr/local/bin/ffmpeg -thread_queue_size 10K -i - -i "$i" -c copy -map 0:v -map 1:a -shortest "$(basename "$i" )".mp4 ; done; for f in *.mp3.mp4; do mv -v "$f" "${f/.mp3.mp4/.mp4}"; done




How can I also print/add/burn the mp3 filename, without the extension (.mp3), as an additional video layer at the bottom of the generated video screen, and with the added difficulty of word wrapping the text if is too long ?


-
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.
-
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.