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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 return black and white image

    16 décembre 2011, par njai

    Video capture device is kworld dvd maker 2 (em2861)
    It returns the image in "black and white" with green line at the bottom of screen ; but when I tested it with webcam, it worked properly.

    Here is 30s video. http://www.youtube.com/watch?v=7q2wFGVwGGI

    How can I convert it to color ?

    [root@localhost ~]# ffmpeg -f video4linux2 -i /dev/video0 -vcodec mpeg4 -y output.mp4
    
ffmpeg version git-2011-11-05-5fd1a69, Copyright (c) 2000-2011 the FFmpeg developers
    
built on Nov  5 2011 21:10:52 with gcc 4.4.4 20100726 (Red Hat 4.4.4-13)
    
configuration: --enable-libx264 --enable-gpl --enable-libvpx
    
libavutil    51. 23. 0 / 51. 23. 0
    
libavcodec   53. 27. 0 / 53. 27. 0
    
libavformat  53. 18. 0 / 53. 18. 0
    
libavdevice  53.  4. 0 / 53.  4. 0
    
libavfilter   2. 47. 0 /  2. 47. 0
    
libswscale    2.  1. 0 /  2.  1. 0
    
libpostproc  51.  2. 0 / 51.  2. 0
    
[video4linux2,v4l2 @ 0x2a64780] Estimating duration from bitrate, this may be inaccurate
    
Input #0, video4linux2,v4l2, from '/dev/video0':
    
Duration: N/A, start: 1320637788.113946, bitrate: 165888 kb/s
    
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576, 165888 kb/s, 25 tbr, 1000k tbn, 25 tbc
    
Incompatible pixel format 'yuyv422' for codec 'mpeg4', auto-selecting format 'yuv420p'
    
[buffer @ 0x2a63920] w:720 h:576 pixfmt:yuyv422 tb:1/1000000 sar:0/1 sws_param:
    
[buffersink @ 0x2a63cc0] auto-inserting filter 'auto-inserted scale 0' between the filter    'src' and the filter 'out'
    
[scale @ 0x2a64560] w:720 h:576 fmt:yuyv422 -> w:720 h:576 fmt:yuv420p flags:0x4
    
Output #0, mp4, to 'output.mp4':
    
Metadata:
    
encoder         : Lavf53.18.0
    
Stream #0:0: Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 720x576, q=2-31, 200 kb/s, 25    tbn, 25 tbc
    
Stream mapping:
    
Stream #0.0 -> #0.0 (rawvideo -> mpeg4)
    
Press [q] to stop, [?] for help
    
frame=  969 fps= 25 q=31.0 Lsize=    1547kB time=00:00:38.76 bitrate= 327.0kbits/s    
    
video:1538kB audio:0kB global headers:0kB muxing overhead 0.561411%

  • how to repeat this ffmpeg effect

    5 septembre 2018, par Vladislav Korobeinikov

    I looking for solution - how to repeat effects :

    1. Zoom on central bottom part at start, with no zoom effect ;
    2. Moving from bottom to top and from left to right ;
    3. Zoom out.

    In this video with ffmpeg filters.

    I read documentation (filters and zoompan filter) from official site, found some information from "ffmpeg basics" written by Frantisek Korbel - but I didn’t find any useful information that solve my problem.

    Also I thought that it could be made with another software.

  • Is there a way to handle discontinuities with FFMPEG ?

    16 avril 2020, par Dave Stein

    I am running ffmpeg like this, to get a screenshot from an HLS manifest :

    



    ffmpeg -i 'https://example.com/myfile.ism/manifest' -vframes 1 test.jpg -y

    



    There are times where there are gaps in the HLS manifest. When I run that command, it fails because it can't find a frame. Is there anything I can do to make it more resilient ? ie if it fails getting the time this very second, try the second before that ?

    



    When I watch the video in something like video.js, or even HLS directly in Safari, I see a frame regardless of gaps. It just jumps sometimes - I always see a frame.

    



    How would I be able to replicate that here such that the ffmpeg command will always return a frame ?

    


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