Bonjour,
dans le cadre de la création d'une table virtuelle destinée au JDR, on développe un lecteur de musique multiplateforme (Youtube, soundclound, dailymotion etc..)
Le système marche bien à une exception la gestion de la time lapse.. Nous arrivons pas à récupérer la bonne idée pour le time code et tous les flux se mélange.
Voici un extrait du code :
js/modulemusique.js:
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idvideogen=1;
function initEmbed(id) {/*devrait etre adapté au idmusique*/
    console.log('initEmbed fc'+id);
    $(this).on('embedplayer:statechange', function (event) {
        $('#state').text(event.state);
    }).on('embedplayer:error', function (event) {
        var message = event.error||'';
        if (event.title)        { message += " "+event.title; }
        else if (event.message) { message += " "+event.message; }
        $('#error').text(message);
    }).on('embedplayer:durationchange', function (event) {/*les musiques ce melange*/
        console.log('currenttime'+id)
 
        if (isFinite(event.duration)) {
            $('#currenttime'+id).show().prop('max', event.duration);
        }
        else {
            $('#currenttime'+id).hide();
        }
        $('#duration'+id).text(event.duration.toFixed(2)+' seconds');
    }).on('embedplayer:timeupdate', function (event) {
        $('#currenttime'+id).val(event.currentTime);
        $('#currenttime-txt'+id).text(event.currentTime.toFixed(2)+' seconds');
    }).on('embedplayer:volumechange', function (event) {
        $('#volume'+id).val(event.volume);
        $('#volume-label'+id).text(
            event.volume <=   0 ? '&#128263;' :
            event.volume <= 1/3 ? '&#128264;' :
            event.volume <= 2/3 ? '&#128265;' :
                                  '&#128266;'
        );
        $('#volume-txt'+id).text(event.volume.toFixed(2));
    }).on('embedplayer:ready', function (event) {
        var link = $(this).embedplayer('link');
        if (link) {
            $('#link'+id).attr('href', link);
            $('#link-wrapper'+id).show();
        }
        var volume = +$('#volume'+id).val();
        $(this).embedplayer('volume', volume);
        $('#volume-txt'+id).text(volume.toFixed(2));
    }).
    embedplayer("listen");
}
 
 
 
function loadVideo(tag, url,idvideo) {
    try {
        var attrs = {
            id: 'video'+idvideo,
            src: url
        };
        switch (tag) {
        case 'iframe'+idvideo:
            attrs.allowfullscreen = 'allowfullscreen';
            attrs.frameborder = '0';
            attrs.width = '300';
            attrs.height = '200';
            // Twitch now needs the embedding site's origin passed as an parameter
            if (/^https?:\/\/player\.twitch\.tv/.test(attrs.src)) {
                attrs.src += '&origin=' + encodeURIComponent(location.origin || location.protocol + '//' + location.host);
            }
            break;
 
        case 'video'+idvideo:
            attrs.width = '640';
            attrs.height = '360';
            attrs.idvideo=idvideo;/*ajout*/
        case 'audio'+idvideo:
            attrs.controls = 'controls';
            attrs.preload = 'auto';
            break;
        }
        $('#link-wrapper'+idvideo).hide();
        $('<'+tag+'>').attr(attrs).replaceAll('#video'+idvideo).each(initEmbed(idvideo));
    }
    catch (e) {
        $('#error'+idvideo).text(String(e));
    }
}
 
function updateVideo (idvideo,valeur,source,urlmusic) {
    console.log('updateVideo '+idvideo+' '+urlmusic )
    var value = valeur.split('|');
    loadVideo(value[0], value[1],idvideo);
    if(source=="youtube"){
        $('#apercu'+idvideo).css({'background':'url(\'https://img.youtube.com/vi/'+urlmusic+'/0.jpg\') top left','background-size':'cover'});
    }
}


js/musique/embedplayer.js:
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(function ($, undefined) {
    "use strict";
 
    $.embedplayer = {
        modules: [],
        modules_by_origin: {},
        defaults: {
            matches: function () { return false; },
            init: function (data, callback) { callback(); },
            play: function (data) {},
            pause: function (data) {},
            toggle: function (data) {
                if (data.state === "playing") {
                    data.module.pause.call(this, data);
                }
                else {
                    data.module.play.call(this, data);
                }
            },
            stop: function (data) { data.module.pause(data); },
            next: function (data) {},
            prev: function (data) {},
            listen: function (data, events) {},
            volume: function (data, callback) { callback(NaN); },
            duration: function (data, callback) { callback(NaN); },
            currenttime: function (data, callback) { callback(NaN); },
            setVolume: function (data, volume) {},
            seek: function (data, position) {},
            link: function (data) { return null; },
            parseMessage: function (event) {},
            processMessage: function (data, message, trigger) {},
            origin: []
        },
        register: function (module) {
            module = make_module(module);
            $.embedplayer.modules.push(module);
            for (var origin in module.origin) {
                if (origin in $.embedplayer.modules_by_origin) {
                    throw new TypeError("already have embedplayer module for origin: "+origin);
                }
                $.embedplayer.modules_by_origin[origin] = module;
            }
        },
        origin: function (url) {
            if (/^\/\//.test(url)) {
                return location.protocol+"//"+url.split("/")[2];
            }
            else if (/^[-_a-z0-9]+:/i.test(url)) {
                return /^([-_a-z0-9]+<img src="images/smilies/icon_sad.gif" border="0" alt="" title=":(" class="inlineimg" />?:\/\/)?[^\/]*)/i.exec(url)[1];
            }
            else {
                return location.protocol+'//'+location.host;
            }
        },
        parseParams: function (search) {
            var params = {};
            if (search) {
                search = search.split("&");
                for (var i = 0; i < search.length; ++ i) {
                    var param = search[i].split("=");
                    params[decodeURIComponent(param[0])] = decodeURIComponent(param.slice(1).join("="));
                }
            }
            return params;
        },
        trigger: function (self, data, type, properties) {
            var state = null;
 
            switch (type) {
            case "timeupdate":
            case "volumechange":
            case "durationchange":
            case "error":
                break;
 
            case "ready":
                state = "ready";
                break;
 
            case "play":
                state = "playing";
                break;
 
            case "pause":
                state = "paused";
                break;
 
            case "finish":
                state = "finished";
                break;
 
            case "buffering":
                state = "buffering";
                break;
            }
 
            if (state && state === data.state) {
                return;
            }
 
            if (state !== null) {
                data.state = state;
            }
 
            if (data.listening[type] === true) {
                var $self = $(self);
                if (state) $self.trigger($.Event('embedplayer:statechange', {state:state}));
                $self.trigger($.Event('embedplayer:'+type, properties));
            }
        }
    };
 
    function make_module (module) {
        module = $.extend({}, $.embedplayer.defaults, module);
        var origins = {};
        if (module.origin) {
            if (!$.isArray(module.origin)) {
                module.origin = [module.origin];
            }
            for (var i = 0; i < module.origin.length; ++ i) {
                var origin = module.origin[i];
                if (/^\/\//.test(origin)) {
                    origins[location.protocol+origin] = true;
                }
                else {
                    origins[origin] = true;
                }
            }
        }
        module.origin = origins;
        return module;
    }
 
    function init (self, options) {
        var data = $.data(self, 'embedplayer');
        if (!data) {
            var module = null;
 
            if (options) {
                module = make_module(options);
                for (var origin in module.origin) {
                    if (origin in $.embedplayer.modules_by_origin) {
                        throw new TypeError("already have embedplayer module for origin: "+origin);
                    }
                    $.embedplayer.modules_by_origin[origin] = module;
                }
            }
            else {
                for (var i = 0; i < $.embedplayer.modules.length; ++ i) {
                    var candidate = $.embedplayer.modules[i];
                    if (candidate.matches.call(self)) {
                        module = candidate;
                        break;
                    }
                }
            }
 
            if (!module) {
                throw new TypeError("unsupported embed");
            }
 
            data = {
                module: module,
                state: 'init',
                listening: {
                    idvideo:false,/*ajout*/
                    ready: false,
                    play: false,
                    pause: false,
                    finish: false,
                    buffering: false,
                    timeupdate: false,
                    volumechange: false,
                    durationchange: false,
                    error: false
                },
                detail: {}
            };
 
            $.data(self, 'embedplayer', data);
 
            var ok = false;
            try {
                module.init.call(self, data, function (player_id) {
                    data.player_id = player_id;
                    $.attr(self, 'data-embedplayer-id', player_id === undefined ? '' : player_id);
                });
                ok = true;
            }
            finally {
                if (!ok) {
                    // do it like that because catch and re-throw
                    // changes the stack trace in some browsers
                    $.removeData(self, 'embedplayer');
                }
            }
        }
        return data;
    }
 
    $.fn.embedplayer = function (command, options) {
        if (arguments.length === 0) {
            command = "init";
        }
        else if (arguments.length === 1 && typeof(command) === "object") {
            options = command;
            command = "init";
        }
 
        switch (command) {
        case "init":
            this.each(function () { init(this, options); });
            break;
 
        case "play":
        case "pause":
        case "stop":
        case "toggle":
        case "next":
        case "prev":
            this.each(function () {
                var data = init(this, options);
                data.module[command].call(this, data);
            });
            break;
 
        case "seek":
            var position = Number(arguments[1]);
            this.each(function () {
                var data = init(this, options);
                data.module.seek.call(this, data, position);
            });
            break;
 
        case "listen":
            var events = arguments.length > 1 ?
                arguments[1] :
                ["idvideo","ready", "play", "pause", "finish", "buffering", "timeupdate", "volumechange", "durationchange", "error"];/*ajout de idvideo*/
            if (!$.isArray(events)) {
                events = $.trim(events).split(/\s+/);
            }
            this.each(function () {
                var data = init(this);
                data.module.listen.call(this, data, events);
                for (var i = 0; i < events.length; ++ i) {
                    data.listening[events[i]] = true;
                }
            });
            break;
 
        case "volume":
            if (arguments.length > 1 && typeof(arguments[1]) !== "function") {
                var volume = Number(arguments[1]);
                this.each(function () {
                    var data = init(this);
                    data.module.setVolume.call(this, data, volume);
                });
            }
            else if (this.length === 0) {
                (arguments[1]||$.noop)(NaN);
            }
            else {
                var data = init(this[0]);
                data.module.volume.call(this[0], data, arguments[1]||$.noop);
            }
            break;
 
        case "duration":
        case "currenttime":
            if (this.length === 0) {
                (arguments[1]||$.noop)(NaN);
            }
            else {
                var data = init(this[0]);
                data.module[command].call(this[0], data, arguments[1]||$.noop);
            }
            break;
 
        case "link":
            if (this.length === 0) {
                return null;
            }
            else {
                var data = init(this[0]);
                return data.module.link.call(this[0], data);
            }
            break;
 
        case "supported":
            for (var i = 0; i < this.length; ++ i) {
                var self = this[i];
                var supported = false;
                for (var j = 0; j < $.embedplayer.modules.length; ++ j) {
                    var candidate = $.embedplayer.modules[j];
                    if (candidate.matches.call(self)) {
                        supported = true;
                        break;
                    }
                }
                if (!supported) {
                    return false;
                }
            }
            return this.length > 0;
 
        default:
            throw new TypeError("unknown command: "+command);
        }
 
        return this;
    };
 
    window.addEventListener("message", function (event) {
        var module = $.embedplayer.modules_by_origin[event.origin];
        if (module) {
            var message = module.parseMessage(event);
            if (message) {
                var iframes = 'player_id' in message ?
                    document.querySelectorAll('iframe[data-embedplayer-id="'+message.player_id+'"]') :
                    document.getElementsByTagName('iframe');
                for (var i = 0; i < iframes.length; ++ i) {
                    var iframe = iframes[i];
                    if (iframe.contentWindow === event.source) {
                        var data = init(iframe);
                        data.module.processMessage.call(iframe, data, message, $.embedplayer.trigger.bind($.embedplayer, iframe, data));
                        break;
                    }
                }
            }
        }
    }, false);
})(jQuery);



Tous le code étant disponible en open source : https://gitlab.com/Vharung/arietes
Lien du site en dev : https://arietes.virtuajdr.net/

Si vous avez une idée de comment débuguer ceci je vous en serais gréé.