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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 (59)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Configuration spécifique d’Apache
4 février 2011, parModules spécifiques
Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
Création d’un (...) -
Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)
Sur d’autres sites (11812)
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FFmpeg. Change video resolution. Maintain everything else [closed]
7 juillet, par Ivan F.I need to reduce the size of the video file a little.


How to reduce video resolution while maintaining everything else as much as possible : aspect ratio, file format, codecs, metadata, etc ?


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How to get the highest resolution, dividable by 2 that contains the video without black borders after rotation ?
22 avril 2016, par Vitalis HommelI rotate a video. Then my goal is to get the biggest resolution, dividable by 2 that contains the video without black borders.
to
My approach.
ffmpeg -ss 6 -i "t.MP4" -ss 0 -t 5 -vf "rotate='8*PI/180:ow=hypot(iw,ih):oh=ow', scale='1920:1920', crop='1920:1080:0:420'" -c:v libx264 -crf 28 -acodec copy "t2.MP4"
But that does not meet the criteria. Which command do I need ?
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Taking a high resolution picture with FFMPEG and Webcam
13 mai 2016, par user2088176I have a Microsoft LifeCam VX-3000 and I want to capture a single image from this video source.
I have tried DirectShow :
ffmpeg -f dshow -video_size 1280x960 -i video="Microsoft LifeCam VX-3000" -vframes 1 file.jpg
[dshow @ 01D69340] Could not set video optionsand
Microsoft WDM Image Capture :ffmpeg -f vfwcap -video_size 1280x960 -i video="Microsoft LifeCam VX-3000" -vframes 1 file.jpg
[vfwcap @ 01D79340] Could not set Video Format.If I lower the video size to 640x480, it works, but every sites tells me that 640x480 is the maximum video resolution, but the still picture maximum resolution is 1280x960. Like here
I would like to capture the image at the highest resolution possible. Is there a way to do it with FFMPEG ? What command-line options should I give it ?
Thank you very much.