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  • 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 (...)

  • 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.

  • Les images

    15 mai 2013

Sur d’autres sites (6411)

  • FFMPEG add circular mask to videos, convert to black and white and concatenate

    3 mai 2018, par Yassine

    Hello everyone i’m a beginner and i would appreciate your help.

    I’m making a mobile application that generates custom video resumes based on the user’s videos taken from his phone, the user has to upload 5 different videos to the server from the mobile application, in the server side i want to :

    • Add a .png circular mask to each video.
    • Make each video black and white.

    • Concatenate the videos with other already existing title videos
      (e.g [userVideo1] [title1] [userVideo2] [title2]...) Visual Example

      [Edit : I would like more features]

    • Add background music
    • Add watermark logo in the middle
    • Remove silent footage from the beginning and from the end
    • Some input videos might be rotated, i want to rotate videos back to normal if they are rotated.

    So far i managed to add the circular mask, make the videos black and white and concatenate 3 videos including a premade title video, but the second user video has no sound in the output.

    This is the script i ended up with :

    ffmpeg -i uservid1.mov -i uservid2.mp4 -i mask.png -i title1.mp4  -preset 
    
ultrafast -filter_complex "
    

    
[2:v][0:v]scale2ref[s1][s2];     
    
[s2][s1]overlay[vid1];  
    
[2:v][1:v]scale2ref[s3][s4]; 
    
[s4][s3]overlay[vid2];  
    
[vid1]hue=s=0[v0]; 
    
[vid2]hue=s=0[v1];  
    
[v0]scale=720x400[in0]; 
    
[v1]scale=720x400[in1]; 
    
[3:v]scale=720x400[in3]; 
    
[in0]setsar=sar=0[final0]; 
    
[in1]setsar=sar=0[final1];      
    
[in3]setsar=sar=0[final3]; 
    
[final0][final3][final1]concat=n=3;"
    

    
-codec:a copy finalCV.mp4  

  • avformat/mxfenc : add white/black ref /color range

    5 avril 2018, par Michael Niedermayer
    avformat/mxfenc : add white/black ref /color range

    Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavformat/mxfenc.c
    • [DH] tests/ref/fate/copy-trac4914
    • [DH] tests/ref/fate/mxf-reel_name
    • [DH] tests/ref/fate/time_base
    • [DH] tests/ref/lavf/mxf
    • [DH] tests/ref/lavf/mxf_d10
    • [DH] tests/ref/lavf/mxf_dv25
    • [DH] tests/ref/lavf/mxf_dvcpro50
    • [DH] tests/ref/lavf/mxf_opatom
    • [DH] tests/ref/lavf/mxf_opatom_audio

  • Creating video from images produces black screen video for certain image formats [duplicate]

    30 mai 2018, par varmashrivastava

    This question already has an answer here :

    I am using below command to create video from images.The command works fine for most images but for png images the video created cannot be played and I just get a black screen.

     String[]  command = new String[]{"-y", "-f", "concat", "-safe", "0", "-i", src.getAbsolutePath(), "-vsync", "vfr", "-vf", "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2", dest.getAbsolutePath()};

    Here destination file path has mp4 format..
    Whats wrong with my command ?

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