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  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • 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 (...)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

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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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