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  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • 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 (...)

Sur d’autres sites (4105)

  • Detect frames that have a given image/logo with FFmpeg

    7 juillet 2022, par scc

    I'm trying to split a video by detecting the presence of a marker (an image) in the frames. I've gone over the documentation and I see removelogo but not detectlogo.

    



    Does anyone know how this could be achieved ? I know what the logo is and the region it will be on.

    



    I'm thinking I can extract all frames to png's and then analyse them one by one (or n by n) but it might be a lengthy process...

    



    Any pointers ?

    


  • how to crop the video with ffmpeg . needed c api to do same

    9 avril 2016, par OpenSource

    I want to crop the video at particular portion.Given height,width,x and y ,I want crop the particular region on the video with help of ffmpeg in iOS.
    any help

  • Audio and video out of sync. Stream mp4 files Concatenation using fluent-ffmpeg

    13 mars 2021, par JosepB

    First of all sorry if the question is duplicated. But I couldn't find out the right answer in other questions.

    


    I'm trying to concatenate AWS S3 mp4 files using streams and fluent-ffmpeg. I managed to download and upload the concatenated files without storing it to the disk.

    


    The concatenation seems correct but when I'm selecting a point in time of the video player (VLC media player or QuickTime) time bar seems the audio and video are out of sync.

    


    This is the nodejs fluent-ffmpeg implementation :

    


    concatenation = (listFileName, passthroughStream) => {

    return new Promise((resolve) => {  
        let command = ffmpeg().input(listFileName)
            .inputOptions(['-f concat', '-safe 0', '-protocol_whitelist', 'file,http,tcp,https,tls'])
            //.videoCodec('libx264')
            .outputFormat('mp4')
            .outputOptions('-movflags frag_keyframe+empty_moov')
            
            var ffstream = command.on('end', function() {
                const result = 'files have been merged succesfully';
                resolve(result);
            })
            .on('error', function(err) {
                console.log('an error happened: ' + err.message);
                reject(err);
            }).pipe(passthroughStream);
            ffstream.on('data', ((chunk) => {
                console.log('ffmpeg just wrote ' + chunk.length + ' bytes');
            }));
    });        
}


    


    I'm using S3 file signed URLs in the file. Somthing like this :

    


    file 'https://bucket.s3.region.amazonaws.com/file_0.mp4'
file 'https://bucket.s3.region.amazonaws.com/file_1.mp4'


    


    I think that this out of sync is because of the fragmentated output and maybe is not possible to do that without downloading the files, but maybe there's a possible solution.

    


    Is there some way to do the mp4 concatenation without storing the files to the disk ? Or am I doing something wrong ?

    


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