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  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par 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 ;

  • Dépôt de média et thèmes par FTP

    31 mai 2013, par

    L’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, par

    The 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 (...)

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  • FFmpeg : Is it better to make a application then using ffmepg directly

    14 juillet 2020, par Mirabeau

    For all my IP camera streams, I use, under Linux, ffmpeg by a bash script which allows me at the same time to manage :

    


    1/ Convert the RTSP streams to HTTP (HLS) for the "Live" and therefore which generates "m3u8" file and *.ts segments

    


    2/ Backup the stream for archiving (in increments of 5 minutes), a cron remove older files (xx days)

    


    ffmpeg -i "rtsp://[IP_CAM01]" -rtsp_transport tcp -c copy -map 0 -f segment -segment_time 300 -segment_atclocktime 1 -segment_format mkv "cam01-% 03d.mkv" -c copy -f segment -segment_list cam01.m3u8 -segment_list_flags + live -segment_time 2 -segment_list_size 20 -segment_wrap 20 cam01-% 03d.ts


    


    The question I ask myself, and the reason for this message is as follows :

    


      

    • would there be an interest (memory / cpu / speed) to develop a program (C/C++/other ?) to do the same thing by using the libraries of ffmpeg ?
    • 


    • or the "gain" and the interest would be so minimal that it is not worth the expenditure of energy and time ?
    • 


    


    I appeal to your feedback, your opinions, your tips !, and if you had leads (sample) to attack this kind of development, I am interested.

    


    Thank you very much in advance for your feedback.
(this is my fist question on stackoverflow, Champagne ! ;))

    


  • How to convert a CCTV footage into time lapse video by cutting parts of the video by a set interval on FFMPEG [duplicate]

    2 décembre 2020, par mark

    I have bunch of CCTV footages and I want it to look like it was recorded from a time lapse camera. One video file is around 3 hours long capturing scenes in real time (from 1pm-3pm for example). And in one day, I'll get around 8 footages (8files * 3hours = 24hours = 1 day)

    


    I want to convert those 24hours worth of footages to 1min making 1 day = 1min of video not just making it fast but actually cutting some of the scenes by a set interval. Usually, a time lapse camera has an interval of one photo per 10 min and at the end of the day, it will stitch them into one video. How can I do something like that on FFMPEG ?

    


    I'm using FFmpeg Batch converter and here's my code so far. It just makes my videos faster but not cutting it into itervals

    


    -filter:v "setpts=0.25*PTS" -an


    


    I ended up with this code :

    


    -vf framestep=25,select='not(mod(n,1000))',setpts=N/FRAME_RATE/TB -an


    


    The above code will make a 1hr long video into 4sec which is perfect for my needs.

    


  • Fix some broken clamping in rate control.

    11 octobre 2015, par Tim Terriberry
    Fix some broken clamping in rate control.
    

    If we have some dupe frames right near the end of the buffer, our
    metric window can be slightly larger than the buffer.
    However, the clamping we use to determine how many frames' worth of
    metrics to add to the buffer had a mix of signed and unsigned
    types, so if that number when negative, instead of clamping
    against zero, it would ask for all remaining frames in the file.
    That would cause an infinite loop when we tried to find the last
    keyframe in the circular buffer in oc_enc_select_qi() (which was
    not big enough to actually hold that many frames).

    This patch changes the clamp to a form that works with all unsigned
    values.

    Thanks to Brion Vibber for the report.

    Fixes #2229

    git-svn-id : http://svn.xiph.org/trunk/theora@19507 0101bb08-14d6-0310-b084-bc0e0c8e3800

    • [DH] lib/rate.c