
Recherche avancée
Médias (1)
-
Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (108)
-
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 (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)
Sur d’autres sites (10928)
-
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.