!function(e, t) {
    "object" == typeof exports && "undefined" != typeof module ? module.exports = t() : "function" == typeof define && define.amd ? define(t) : (e = "undefined" != typeof globalThis ? globalThis : e || self).RecorderManager = t()
}(this, (function() {
    "use strict";
    function e(e, t, r, o) {
        return new (r || (r = Promise))((function(n, a) {
            function i(e) {
                try {
                    u(o.next(e))
                } catch (e) {
                    a(e)
                }
            }
            function s(e) {
                try {
                    u(o.throw(e))
                } catch (e) {
                    a(e)
                }
            }
            function u(e) {
                var t;
                e.done ? n(e.value) : (t = e.value,
                t instanceof r ? t : new r((function(e) {
                    e(t)
                }
                ))).then(i, s)
            }
            u((o = o.apply(e, t || [])).next())
        }
        ))
    }
    function t(e, t) {
        var r, o, n, a, i = {
            label: 0,
            sent: function() {
                if (1 & n[0])
                    throw n[1];
                return n[1]
            },
            trys: [],
            ops: []
        };
        return a = {
            next: s(0),
            throw: s(1),
            return: s(2)
        },
        "function" == typeof Symbol && (a[Symbol.iterator] = function() {
            return this
        }
        ),
        a;
        function s(s) {
            return function(u) {
                return function(s) {
                    if (r)
                        throw new TypeError("Generator is already executing.");
                    for (; a && (a = 0,
                    s[0] && (i = 0)),
                    i; )
                        try {
                            if (r = 1,
                            o && (n = 2 & s[0] ? o.return : s[0] ? o.throw || ((n = o.return) && n.call(o),
                            0) : o.next) && !(n = n.call(o, s[1])).done)
                                return n;
                            switch (o = 0,
                            n && (s = [2 & s[0], n.value]),
                            s[0]) {
                            case 0:
                            case 1:
                                n = s;
                                break;
                            case 4:
                                return i.label++,
                                {
                                    value: s[1],
                                    done: !1
                                };
                            case 5:
                                i.label++,
                                o = s[1],
                                s = [0];
                                continue;
                            case 7:
                                s = i.ops.pop(),
                                i.trys.pop();
                                continue;
                            default:
                                if (!(n = i.trys,
                                (n = n.length > 0 && n[n.length - 1]) || 6 !== s[0] && 2 !== s[0])) {
                                    i = 0;
                                    continue
                                }
                                if (3 === s[0] && (!n || s[1] > n[0] && s[1] < n[3])) {
                                    i.label = s[1];
                                    break
                                }
                                if (6 === s[0] && i.label < n[1]) {
                                    i.label = n[1],
                                    n = s;
                                    break
                                }
                                if (n && i.label < n[2]) {
                                    i.label = n[2],
                                    i.ops.push(s);
                                    break
                                }
                                n[2] && i.ops.pop(),
                                i.trys.pop();
                                continue
                            }
                            s = t.call(e, i)
                        } catch (e) {
                            s = [6, e],
                            o = 0
                        } finally {
                            r = n = 0
                        }
                    if (5 & s[0])
                        throw s[1];
                    return {
                        value: s[0] ? s[1] : void 0,
                        done: !0
                    }
                }([s, u])
            }
        }
    }
    function r() {
        var e, t = navigator, r = t.getUserMedia || t.webkitGetUserMedia || t.mozGetUserMedia;
        return (null === (e = t.mediaDevices) || void 0 === e ? void 0 : e.getUserMedia) ? t.mediaDevices.getUserMedia({
            audio: !0,
            video: !1
        }) : r ? new Promise((function(e, t) {
            r.call(navigator, {
                audio: !0,
                video: !1
            }, (function(t) {
                e(t)
            }
            ), (function(e) {
                t(e)
            }
            ))
        }
        )) : Promise.reject(new Error("不支持录音"))
    }
    var o;
    function n(r, n) {
        return e(this, void 0, void 0, (function() {
            var e;
            return t(this, (function(t) {
                switch (t.label) {
                case 0:
                    return [3, 2];
                case 1:
                    return t.sent(),
                    [2, new AudioWorkletNode(r,"processor-worklet")];
                case 2:
                    return (e = o) ? [3, 4] : [4, new Worker("".concat(n, "/processor.worker.js"))];
                case 3:
                    e = t.sent(),
                    t.label = 4;
                case 4:
                    return [2, {
                        port: o = e
                    }]
                }
            }
            ))
        }
        ))
    }
    return function() {
        function o(e) {
            this.processorPath = e,
            this.audioBuffers = []
        }
        return o.prototype.start = function(o) {
            var a, i = o.sampleRate, s = o.frameSize, u = o.arrayBufferType;
            return e(this, void 0, void 0, (function() {
                var e, o, c, l, f, d, p;
                return t(this, (function(t) {
                    switch (t.label) {
                    case 0:
                        return t.trys.push([0, 3, , 4]),
                        (e = this).audioBuffers = [],
                        [4, r()];
                    case 1:
                        return o = t.sent(),
                        this.audioTracks = o.getAudioTracks(),
                        c = function(e, t) {
                            var r;
                            try {
                                (r = new (window.AudioContext || window.webkitAudioContext)({
                                    sampleRate: t
                                })).createMediaStreamSource(e)
                            } catch (t) {
                                null == r || r.close(),
                                (r = new (window.AudioContext || window.webkitAudioContext)).createMediaStreamSource(e)
                            }
                            return r
                        }(o, i),
                        this.audioContext = c,
                        l = c.createMediaStreamSource(o),
                        [4, n(c, this.processorPath)];
                    case 2:
                        return f = t.sent(),
                        this.audioWorklet = f,
                        f.port.postMessage({
                            type: "init",
                            data: {
                                frameSize: s,
                                toSampleRate: i || c.sampleRate,
                                fromSampleRate: c.sampleRate,
                                arrayBufferType: u || "short16"
                            }
                        }),
                        f.port.onmessage = function(t) {
                            var r = t.data
                              , o = r.frameBuffer
                              , n = r.isLastFrame;
                            if (s && e.onFrameRecorded)
                                if (null == o ? void 0 : o.byteLength)
                                    for (var a = 0; a < o.byteLength; )
                                        e.onFrameRecorded({
                                            isLastFrame: n && a + s >= o.byteLength,
                                            frameBuffer: t.data.frameBuffer.slice(a, a + s)
                                        }),
                                        a += s;
                                else
                                    e.onFrameRecorded(t.data);
                            e.onStop && (o && e.audioBuffers.push(o),
                            n && e.onStop(e.audioBuffers))
                        }
                        ,
                        (d = c.createScriptProcessor(0, 1, 1)).onaudioprocess = function(e) {
                            f.port.postMessage({
                                type: "message",
                                data: e.inputBuffer.getChannelData(0)
                            })
                        }
                        ,
                        l.connect(d),
                        d.connect(c.destination),
                        c.resume(),
                        null === (a = this.onStart) || void 0 === a || a.call(this),
                        [3, 4];
                    case 3:
                        // return p = t.sent(),
                        // console.error(p),
                        // [3, 4];


                        p = t.sent();
                        if (p instanceof Error) {
                            throw p; // 抛出捕获的异常到外部，便于调用者进行处理
                        }else{
                            // console.error(p),
                            return [3, 4];
                        }

                    case 4:
                        return [2]
                    }
                }
                ))
            }
            ))
        }
        ,
        o.prototype.stop = function() {
            var e, t, r, o;
            null === (e = this.audioWorklet) || void 0 === e || e.port.postMessage({
                type: "stop"
            }),
            null === (t = this.audioTracks) || void 0 === t || t[0].stop(),
            "running" === (null === (r = this.audioContext) || void 0 === r ? void 0 : r.state) && (null === (o = this.audioContext) || void 0 === o || o.close())
        }
        ,
        o
    }()
}
));