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Médias (1)
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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (50)
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Menus personnalisés
14 novembre 2010, parMediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
Menus créés à l’initialisation du site
Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...) -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
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 (...)
Sur d’autres sites (9636)
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Creating a transparent video out of an input video
28 juillet 2021, par poldownI'm trying to create a video with a transparent background out of an input video (with the same dimensions, etc.). I tried several strategies (using the
chromakey
filter and others) and none worked... I got this far :

ffmpeg -i input.mp4 -filter_complex "color=color=black@0.0,format=yuva420p[bg],[bg][0:v]scale2ref[bg][0v],[bg]drawbox=x=10:y=10:w=100:h=100:color=pink@0.5;[0v]nullsink" -c:v qtrle -an "alpha.mov"



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- creating a video stream with transparency, and setting a transparent background (black@0.0)
- scaling the transparent video according to the input video
- [for testing purposes : drawing a box over the transparent video. I omitted the part in which I embed subtitles onto the video, for simplicity's sake]
- discarding the input video stream
- removing the audio stream












It basically works, but the processing never ends - I can't manage to limit the output video length so it'll match the input video's length...
I've tried using the
-shortest
option anywhere in the command - with no success.

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Merge two video devices into a third device by placing the video next to each other
14 janvier 2021, par Lennart Van der GotenThe Situation


I have two webcams (with associated video devices
/dev/video0
and/dev/video1
). The first webcam generates a resolution of 720p while the other one generates 1080p.

The Task


I would like to create a new video device
/dev/video2
that is defined by putting the video from the first webcame next to the one coming from the second webcam.

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Overlaying a video, a text and an image on another video using FFMpeg
11 janvier 2019, par leoI want to overlay a video, a text, and an image on another video using FFMpeg but I do not know how can I do that. My scenario like that ;
Base Video :
I have a base video which is 2 minutes in length.
Overlay Videos :
I have 3 videos which are 7 seconds in length. I am trying to put these files on some specific times for example first : 20 : 27 seconds, second 40:47 seconds, third : 60:67 second as fully covered basic video.I have one image and it will be overlaid on base video between 10:15 seconds for a specific position on the base video.
I have one text and it will be overlaid on base video between 10:15 seconds for a specific position on the base video.How can I do that with FFMpeg command ? And Can I do that with one command ?