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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (97)
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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 (...) -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
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
Sur d’autres sites (14526)
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ffmpeg : What is the best practice to keep a live connection/socket with a camera, and save time on ffprobe
15 mai 2022, par Jeff StrongmanToday... I used the following command : with
subprocess.PIPE
andsubprocess.Popen
in python 3 :

ffmpeg -i udp://{address_of_camera} \
 -vf select='if(eq(pict_type,I),st(1,t),gt(t,ld(1)))' setpts=N/FRAME_RATE/TB \
 -f rawvideo -an -vframes {NUM_WANTED_FRAMES} pipe:`



This command helps me to capture
NUM_WANTED_FRAMES
frames from a live camera at a given moment.

However... it takes me about 4 seconds to read the frames, and about 2.5 seconds to open a socket between my computer and the camera's computer.


Is there a way, to have a socket/connection always open between my computer and the camera's computer, to save the 2.5 seconds ?


I read something about
fifo_size
andoverrun_fatal
. I thought that maybe I can setfifo_size
to be equal toNUM_WANTED_FRAMES
, andoverrun_fatal
to True ? Will this solve my problem ? Or is there a different and simpler/better solution ?

Should I try to record always (no
-vframes
flag) store the frames in a queue(With max size), and upon a wish to slice the video, read from my queue buffer ? Will it work well with the keyframe ?

Also... What to do when ffmpeg fails ? restart the ffmpeg command ?


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Revision 7af927e324 : Merge "vp9_ethread : calculate and save the tok starting address for tiles"
1er décembre 2014, par Yunqing WangMerge "vp9_ethread : calculate and save the tok starting address for tiles"
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I want to save a video with effects applied on it
10 novembre 2016, par shriyajava.lang.NullPointerException: Attempt to invoke virtual method 'void com.github.hiteshsondhi88.libffmpeg.FFmpeg.execute(java.lang.String[], com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteResponseHandler)' on a null object reference
This is command string which i want to process.
commandStr = "ffmpeg -y -i " + old_video_path +" -strict experimental -vf curves=vintage -s 240x320 -r 30 -aspect " +"4:3 -ab 48000 -ac 2 -ar 22050 -b 2097k -vcodec mpeg4 -preset ultrafast "+ path + "/WeRgold_" + "NAME" + ".mp4";