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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 ;

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

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  • Debayer video with ffmpeg

    26 septembre 2016, par Andrew Spence

    Looking to debayer video with ffmpeg. I can’t find a way to do it without piping raw video between two instances of ffmpeg, because I can’t change the pixel format of my input video "in place" from gray to bayer_gbrg8. So, this command works :

    ffmpeg -i fr_losslessmovie_png_codec.avi -f image2pipe -pix_fmt gray \
    
-vcodec rawvideo - | ffmpeg -r 25 -f rawvideo -s 2048x700 \
    
-pix_fmt bayer_gbrg8 -i pipe:0 -y -pix_fmt yuv420p -b:v 25000k \
    
fr_debayer_compressed.mp4

    I would have given the source movie this pixel format, but didn’t realize ffmpeg suported bayered pixel formatting.

    Didn’t see this exact question online, and have not found a way to change the pixel format with video filters etc. without ffmpeg thinking i’m trying to convert the data. I just want to change the pixel format that the already existing gray data has been assigned.

    Thanks in advance !
    Andrew

  • I was trying to render a gif over an video created from a single image by adding an audio stream, but the gif is not rendering [closed]

    2 mai 2024, par Madhur Arora

    the gif is not rendering

    


     !ffmpeg -i /content/lipsync_facerefine_studio/assets/7cbdde.jpg -stream_loop -1 -i /content/lipsync_facerefine_studio/temp/c0703.gif -i /content/lipsync_facerefine_studio/lipsync/temp/48409e30-a572-42ac-9893-cf24f3cd866d.wav -filter_complex "[1]fade=in:st=0:d=2.5:alpha=1,scale=499.99999999999994:375.0[layer1] ;[0][layer1]overlay=x='if(lt(t,2.5),81.0-(w/2)+t*(w/5.0),81.0)':y=81.0:shortest=1[overlay1] ;" -map 2:a -map '[overlay1]' /content/lipsync_facerefine_studio/temp/temp.mp4 -y

    


  • ffmpeg latency even on 127.0.0.1 udp

    3 juin 2016, par KKKk

    I’ve got a problem with ffmpeg video stream(udp). Thing is I’ve got about 2 sec delay on live stream even on loopback(!).

    I use those parameters :

    ffmpeg -f dshow -i video="screen-capture-recorder" -vcodec libx264 -preset ultrafast -tune zerolatency -r 10 -maxrate 750k -bufsize 3000k -f mpegts udp://127.0.0.1:1234

    I tried also those :

    ffmpeg -f dshow -i video="screen-capture-recorder" -framerate 30 -c:v libx264 -preset veryfast -tune zerolatency -pix_fmt yuv444p -x264opts crf=20:vbv-maxrate=3000:vbv-bufsize=100:intra-refresh=1:slice-max-size=1500:keyint=30:ref=1 -f mpegts udp://127.0.0.1:1234

    but it’s even worse.
    I tried to raise framerate, or decrease GOP value, but it didn’t help me. Any ideas ? Maybe I did some basic mistakes since I’m beginner yet..
    (probesize at 32 didn’t help me too).

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