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Médias (1)
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (50)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...) -
Other interesting software
13 avril 2011, parWe don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
We don’t know them, we didn’t try them, but you can take a peek.
Videopress
Website : http://videopress.com/
License : GNU/GPL v2
Source code : (...)
Sur d’autres sites (5798)
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Accuracy of trimming/concatenating parts of videos with ffmpeg
10 mai 2020, par CirconflexeI am adjusting a video (with audio track) using ffmpeg, with the goal being to move the time position of some given points of the video as precisely as possible in time (ideally, with an accuracy of 1ms), by using a piecewise affine transform on the time of the video.
For this I use
ffmpeg
with a combination oftrim
,setpts
,atrim
,atempo
, andconcat
filters, such as :


ffmpeg -i input.mp4 -filter_complex \
'[0:v]trim=start=0:end=162.328554216868,setpts=1.194377385743*(PTS-STARTPTS)[v0];'\
'[0:a]atrim=start=0:end=162.328554216868,asetpts=PTS-STARTPTS,atempo=.837256307710[a0];'\
'[0:v]trim=start=162.328554216868:end=173.161445783132,setpts=1.135513218334*(PTS-STARTPTS)[v1];'\
'[0:a]atrim=start=162.328554216868:end=173.161445783132,asetpts=PTS-STARTPTS,atempo=.880659056939[a1];'\
'[0:v]trim=start=173.161445783132:end=197.842554216868,setpts=1.093796435691*(PTS-STARTPTS)[v2];'\
'[0:a]atrim=start=173.161445783132:end=197.842554216868,asetpts=PTS-STARTPTS,atempo=.914246899486[a2];'\
'[0:v]trim=start=197.842554216868:end=208.505445783132,setpts=1.145926645725*(PTS-STARTPTS)[v3];'\
'[0:a]atrim=start=197.842554216868:end=208.505445783132,asetpts=PTS-STARTPTS,atempo=.872656206861[a3];'\
'[0:v]trim=start=208.505445783132:end=212.61,setpts=PTS-STARTPTS[v4];'\
'[0:a]atrim=start=208.505445783132:end=212.61,asetpts=PTS-STARTPTS,atempo=1[a4];'\
'[v0][a0][v1][a1][v2][a2][v3][a3][v4][a4]concat=n=5:v=1:a=1[v][a]' \
-map '[v]' -map '[a]' output.mp4




(the numeric values above are obviously generated by another script, not by hand !). However I find that the resulting audio track has some “whitespace” inserted wherever two parts are joined. For example, when joining a longer file (about 4 minutes with 31 parts in total), I found that the duration of the file had increased by about 0.3 second in total, which obviously defeats the “millisecond-accuracy” goal.



How could I tell
ffmpeg
to make the transitions as exact as possible ?

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Resize videos in android
18 février 2014, par Christopher JohnsonI'm looking to resize videos captured using the MediaStore Intent after they have been saved to the SD card. I've done similar things with c# and ffmpeg and thought about using that with android but I've yet to be able to find a way to incorporate that into my eclipse running on my windows 7 machine.
I'm a total *nix noob so all of the solutions that I've found for building ffmpeg into an android app are completely greek to me.
Is there an alternative solution to ffmpeg that perhaps is already built into the android sdk for resizing videos ?
I'm just looking for the path of least resistance here...
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Revision 118699 : afficher_si pour la saisie cvt_upload. Permet avec la syntaxe ...
18 novembre 2019, par maieul@… — Logafficher_si pour la saisie cvt_upload. Permet avec la syntaxe @fichiers_1@:TOTAL > ; 2 d’afficher quelque chose si on a plus de 2 fichiers envoyé