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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (102)
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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 (...) -
Qu’est ce qu’un éditorial
21 juin 2013, parEcrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
Vous pouvez personnaliser le formulaire de création d’un éditorial.
Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...) -
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 (...)
Sur d’autres sites (12815)
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Crop video by frame and save output as video
3 avril 2018, par D_CorsonI’m trying to resolve a question I had posted earlier (trying to only use FFMPEG) and am still stuck and hoping someone else has a solution.
I have a video that I want to crop frame by frame with a varying locations to extract a region of interest. I can currently do this using moviepy which has been excellent, but I would like to try and solve this using only FFMPEG. The added constraints are that I would like to be able to crop the frame and put this in a new video without having to save the cropped images locally and compiling them.
Thanks
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FFMpeg/other video library - How to segment a video file into a stream of playable segments ?
27 juin 2012, par Anders BranderudI want FFMpeg/other video library to create several segments out of an original video file ; and a meta data-file containing the name of the segments and other data required in order to play them as a stream.
The files should be created in such a way that the segments can be played as a stream without any noticable glitches in the overlap of the media files.I also want to know what command to use for a media player to take and interpret the meta data-file and to play the video segments in their right order.
I have managed to do this with GPAC.
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Generate frame images from video and compile them back to the video in-memory
24 septembre 2020, par gumkinsI have to remove some repeating frames from the beginning of a video file.


For that I'm generating frame images from the video


ffmpeg -i input.mp4 -qscale:v 2 frame_%04d.jpg


This command generates a set of files with index in name. Then I'm analyzing frames against some criteria programmaticaly, removing useless ones and compiling the rest back to the video file


ffmpeg -r 60 -start_number 0 -i "frame_%04d.jpg" -c:v libx264 -vf "fps=25,format=yuv420p" out.mp4


What I don't like in this schema that IO operations take part in the process. I would like to generate an array of buffers with binary data, then process it with Javascript and then pipe filtered ones back to ffmpeg without using the file system.


Does ffmpeg have such possibility ?