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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 (100)
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Gestion des droits de création et d’édition des objets
8 février 2011, parPar défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;
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Dépôt de média et thèmes par FTP
31 mai 2013, parL’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...) -
Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)
Sur d’autres sites (8464)
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How to retrieve FFMPEG (called from OpenCV) Python decoding error
15 décembre 2020, par user9784065While trying to read a video stream form an IP camera using :



stream = cv2.VideoCapture(src)
(grabbed, frame) = stream.read()




The
grabbed
returns True while sometimes the frames are corrupted (probably due to high CPU load). An internal Opencv error like the following is showing on the terminal :


[h264 @ 0x25e99400] error while decoding MB 87 29, bytestream -5




Is there a way to catch this error ? Please note that I tried the obvious
try:except
withcv2.error
etc. In such case of corrupted frame it would be preferable to restart the connection to the camera.

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seekFunction in avio_alloc_context
3 février 2018, par Javier RamírezI am trying to make my video file restart from the beginning. The data of my file, are being obtained from a stream, through an istream object.
This is my seekFunction :
int64_t seekFunction(void *opaque,int64_t offset,int whence){
istream *me = reinterpret_cast (opaque);
if(key == 'R')me->seekg(0);
return me->tellg();
}But it does not work. In fact, I do not know how to use this function, and there is very little information. How should this function be used, so that my video restarts ?
If only I use
av_seek_frame(pFormatCtx,0,0,AVSEEK_FLAG_ANY);
avcodec_flush_buffers(pFormatCtx);in my terminal it indicates :
[avi @ 0x1963e80] Seek failed.
What should I do to restart my video that I opened from a stream ?
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How to stop ffmpeg remotely ?
30 novembre 2016, par AdamI’m running ffmpeg on another machine for screen capture. I’d like to be able to stop it recording remotely. FFMPEG requires that q is pressed to stop encoding as it has to do some finalization to finish the file cleanly. I know I could kill it with kill/killall however this can lead to corrupt videos.
Press [q] to stop encoding
I can’t find anything on google specifically for this, but some there is suggestion that echoing into /proc//fd/0 will work.
I’ve tried this but it does not stop ffmpeg. The q is however shown in the terminal in which ffmpeg is running.
echo -n q > /proc/16837/fd/0
So how can I send a character to another existing process in such a way it is as if it were typed locally ? Or is there another way of remotely stopping ffmpeg cleanly.