Recherche avancée

Médias (1)

Mot : - Tags -/net art

Autres articles (50)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • 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 (...)

  • 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 (6367)

  • Ffmpeg - Scale down video with overlay

    30 juillet 2020, par pillarman38

    I am trying to transcode a video with a subtitle overlay but I need to scale it down from 4k to 1080. How would I go about doing that with a complex filter ?

    


    ffmpeg -ss 00:00:00 -i myVideo.mkv -filter_complex[0:v][0:s:0]overlay[v] -map [v] -map 0:a:0 -y -acodec aac -ac 6 -pix_fmt yuv420p10le -vcodec libx265 -x265-params colorprim=bt2020:transfer=smpte2084:colormatrix=bt2020nc -start_number 0 -hls_time 5 -force_key_frames expr:gte(t,n_forced*5) -hls_list_size 0 -f hls `output.ts`


    


  • Chrome "stalling" when streaming mp3 file from nodejs windows only

    8 octobre 2015, par Alan Hollis

    We’ve got a really annoying bug when trying to send mp3 data. We’ve got the following set up.

    Web cam producing aac -> ffmpeg convert to adts -> send to nodejs server -> ffmpeg on server converts adts to mp3 -> mp3 then streamed to browser.

    This works *perfectly" on Linux ( chrome with HTML5 and flash, firefox flash only )

    However on windows the sound just "stalls", no matter what combination we use ( browser/html5/flash ). If however we shutdown the server the sound then immediately starts to play as we expect.

    For some reason on windows based machines it’s as if the sound is being buffered "waiting" for something but we don’t know what that is.

    Any help would be greatly appreciated.

    Relevant code in node

        res.setHeader('Connection', 'Transfer-Encoding');
    
    res.setHeader('Content-Type', 'audio/mpeg');
    
    res.setHeader('Transfer-Encoding', 'chunked');
    
    res.writeHeader('206');
    

    
    that.eventEmitter.on('soundData', function (data) {
    
        debug("Got sound data" + data.cameraId + " " + req.params.camera_id);
    
        if (req.params.camera_id == data.cameraId) {
    
            debug("Sending data direct to browser");
    
            res.write(data.sound);
    
        }
    
    });

    Code on browser

           soundManager.setup({
    
                            url: 'http://dashboard.agricamera.co.uk/themes/agricamv2/swf/soundmanager2.swf',
    
                            useHTML5Audio: false,
    
                            onready: function () {
    
                                that.log("Sound manager is now ready")
    
                                var mySound = soundManager.createSound({
    
                                    url: src,
    
                                    autoLoad: true,
    
                                    autoPlay: true,
    
                                    stream: true,
    
                                });
    
                            }
    
                        });

  • how to detect audio stream file type and decode using ffmpeg

    2 juin 2020, par Kathy.Pu

    ffmpeg use avformat_open_input in ffprobe.c to detect file type.
But the parameter of avformat_open_input is filename. My situation is realtime audio stream, is there any function can transfer audio data to detect type ?

    


Navigation