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  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
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  • Les notifications de la ferme

    1er décembre 2010, par

    Afin d’assurer une gestion correcte de la ferme, il est nécessaire de notifier plusieurs choses lors d’actions spécifiques à la fois à l’utilisateur mais également à l’ensemble des administrateurs de la ferme.
    Les notifications de changement de statut
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Sur d’autres sites (6072)

  • lavfi/vf_xfade : rewrite activate inputs handling

    2 juin 2023, par Marvin Scholz
    lavfi/vf_xfade : rewrite activate inputs handling

    The old code was not properly handling a bunch of edge-cases with
    
streams terminating earlier and also did not properly report back EOF
    
to the first input.
    

    This fixes at least one case where the filter could stop doing
    
anything :
    

    ffmpeg -f lavfi -i "color=blue:d=10" -f lavfi -i "color=aqua:d=0" -filter_complex "[0][1]xfade=duration=2:offset=0:transition=wiperight" -f null -
    • [DH] libavfilter/vf_xfade.c

  • ffmpeg doesn't always create wave picture

    17 février 2017, par Sean

    @LordNeckbeard and other ffmpeg experts,

    can you please help me with generating wave picture. the following command works perfectly on some videos and it doesn’t on other videos :

    ffmpeg  -i "input.mp4" -filter_complex "[0:a]aformat = channel_layouts = mono, compand = gain = -6, showwavespic = s = 1920x384: colors =red|blue[fg]; color = s = 1920x384: color =#444444, drawgrid = width = 38:height = 38:color =#555555@0.5[bg]; [bg][fg]overlay = format = rgb, drawbox = x = (iw - w) / 2:y = (ih - h) / 2:w = iw:h = 2:color =#000000@0.4" -vframes 1  "output.png"

    when working, it generates the following wave pic :
    working example

    on other videos, it shows the grid but it seems that the wave signal is hidden behind the grid

    wave hidden behind the grid

    Your help is greatly appreciated !

    Thank you,
    Sean.

  • ffmpeg : Considers AVPixelFormat as Int ?

    16 mars 2014, par jamie_y

    I would like to use a function ff_load_image.

    program.c

    #include "../ffmpeg/libavfilter/lavfutils.h"
    

    
int main ()
    
{
    
  uint8_t* data;
    

    
  int linesize, width, height, log_ctx;
    

    
  int i = ff_load_image(&data, &linesize, &width, &height, AV_PIX_FMT_RGB24, "blue.jpg", &log_ctx);
    
}

    This compiles, but gives a warning.

    program.c: In function 'main':
    
program.c:11: warning: passing argument 5 of 'ff_load_image' makes pointer from integer without a cast
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected 'enum AVPixelFormat *' but argument is of type 'int'

    When I run the program, it segment faults. I can't think of any other way to specify a pixel format. Why would ffmpeg think AV_PIX_FMT_RGB8 is an integer ? It's obviously an AVPixelFormat.

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