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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (98)
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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 (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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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 (6424)
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libavcodec/libxvid : code cleanup (replace magic numbers)
30 mai 2024, par Ramiro Polla -
How to extract key-frames closest to given frame numbers from H264 video with ffmpeg
16 décembre 2016, par John AllardI know how to extract a set of frames as jpg files from a video using ffmpeg if you know the frame numbers (given below)
Extracting Frames: [40, 59, 73, 110]
/usr/bin/ffmpeg -y -hide_banner -nostats -loglevel error -i /home/pi/movie.mp4 -vf select='eq(n\,40)+eq(n\,59)+eq(n\,73)+eq(n\,110)',scale=640:-1 -vsync 0 /tmp/%04d.jpgThat will extract frames [40, 59, 73, 110] as files /tmp/0000.jpg, /tmp/0001.jpg, etc.
I also know how to extract all key frames for a given time interval :
ffmpeg -ss -i video.mp4 -t <duration> -q:v 2 -vf select="eq(pict_type\,PICT_TYPE_I)" -vsync 0 frame%03d.jpg
</duration>That will get all I-frames from
start_time
throughstart_time+duration
.But what I would like to do is give a list of frame numbers and have ffmpeg extract the closest key-frames to each frame-number. Is there a way to do this with ffmpeg or would I have to write my own program ontop of libavcodec to do this ?
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build : Store library version numbers in .version files
17 décembre 2016, par Diego Biurrunbuild : Store library version numbers in .version files
This moves work from the configure to the Make stage where it can
be parallelized and ensures that shared libraries are built with
the right version number in the filename.