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Exemple de boutons d’action pour une collection collaborative
27 février 2013, par
Mis à jour : Mars 2013
Langue : français
Type : Image
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Exemple de boutons d’action pour une collection personnelle
27 février 2013, par
Mis à jour : Février 2013
Langue : English
Type : Image
Autres articles (111)
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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 (...) -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
Sur d’autres sites (13626)
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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 ?
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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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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.