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Autres articles (50)

  • 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 (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (4385)

  • ffmpeg creating multiple output videos, splitting on gt(scene,x)

    2 janvier 2021, par spitfire109

    I want to split one video up into multiple parts based on detecting the first frame of each shot, by select scene in ffmpeg.

    



    The following entry records the scene frames and creates a photo mosaic out of them. This indicates to me that the select portion is functional, but I want to use this to create many separate videos, each scene it's own video file.

    



    ffmpeg -i video.mpg -vf select='gt(scene\,0.2331)','scale=320x240,tile=1x100' -frames:v preview.png


    



    Thank you. I think I am close, and I am open to any solution.

    


  • FFmpeg mp4 compression

    22 septembre 2016, par Nikita Pronchik

    I’m developing photo and video social network ( partially like instagram ). And i’m using ffmpeg for mp4 to mp4 file size compression. I achieved 3 time scale factor for file size ( from 13 mb to 2,5 mb ) but very stupidly - 3 times converting output files by the following command-line string :

    ./ffmpeg -i input.mp4 -vcodec h264 -acodec mp2 output.mp4

    I’m a newbee in video-audio codec theory, so i completely lost audio while such compression. So my question is - where is audio ? Which option should i use ? Thanks in advance !

  • How do you apply filters to ffmpeg in one sentence and put music in the ffmpeg ?

    9 septembre 2017, par 이상우

    I want to put music on a photo with a filter applied.
    However, music will not be inserted and only the video will be played.
    What should I do ?

    "C:/Users/SCITMaster/Desktop/ffmpeg-20170827-ef0c6d9-win64-static/bin/ffmpeg",
    
"-loop","1","-t","5","-i","photo1.jpg",
    
"-loop","1","-t","5","-i","photo2.jpg",
    
"-loop","1","-t","5","-i","photo3.jpg",
    
"-loop","1","-t","5","-i","photo4.jpg",
    
"-loop","1","-t","5","-i","photo5.jpg",
    
"-filter_complex",
    
"[1:v][0:v]blend=all_expr='A*(if(gte(T,2),1,T/2))+B*(1-(if(gte(T,3),1,T/3)))'[b1v];"
    
+ " [2:v][1:v]blend=all_expr='A*(if(gte(T,0.5),1,T/0.5))+B*(1-(if(gte(T,0.5),1,T/0.5)))'[b2v];"
    
+ " [3:v][2:v]blend=all_expr='A*(if(gte(T,0.5),1,T/0.5))+B*(1-(if(gte(T,0.5),1,T/0.5)))'[b3v];"
    
+ " [4:v][3:v]blend=all_expr='A*(if(gte(T,0.5),1,T/0.5))+B*(1-(if(gte(T,0.5),1,T/0.5)))'[b4v];"
    
+ " [0:v][b1v][1:v][b2v][2:v][b3v][3:v][b4v][4:v]concat=n=9:v=1:a=0,format=yuv420p[v]",
    
"-map",
    
"[v]","-i","Test.mp3","-s","1280x960","-vcodec","libx264","-crf","25","-acodec","copy",
    
"crossfade.mp4"

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