未捕获的TypeError：undefined不是函数player.cueVideoById

Question

我想使用youtube播放器api创建一个网络播放器。我想创建自动播放视频。

为此，我使用了以下脚本：

var tag = document.createElement('script');
        tag.src = "https://www.youtube.com/iframe_api";
        var firstScriptTag = document.getElementsByTagName('script')[0];
        firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);

        var player;
        var isPlaying = false;

        function onYouTubeIframeAPIReady() {
            player = new YT.Player('player', {
                height: '420',
                width: '640',
                playerVars: { 'autoplay': 1, 'controls': 0, 'showinfo': 0 },
                events: {
                    //  'onReady': onPlayerReady,
                    'onStateChange': onPlayerStateChange
                }
            });
        }

        function onPlayerReady(event) {
            event.target.playVideo();
        }


        var done = false;
        function onPlayerStateChange(event) {
            if (event.data == YT.PlayerState.PLAYING && !done) {
                setTimeout(stopVideo, 6000);
                done = true;
            }
        }

        function stopPlayerVideo() {
            player.stopVideo();
            return false;
        }
        function playPlayerVideo() {
            player.playVideo();
            return false;
        }
        function pausePlayerVideo() {
            player.pauseVideo();
            return false;
        }

        function ShowModalPopup() {
            var url = $get("<%=hfURL.ClientID %>").value;                   
            if (url != "") {
                var fn = function () {
                    if(player != null)
                        $('#txtCnt').val(cnt + " : " + isPlaying + " :u " + url);
                    player.cueVideoById(url, 0, "hd1440");
                    player.playVideo();
                    $('#msg').hide();
                    $('#img_msg').hide();
                    isPlaying = true;
                    pendingDate = new Date();
                    pendingSec = 0;
                }
                setTimeout(fn, 1000);
                $get("<%=hfDuration.ClientID %>").value = "";
                $find("mpe").show();
            }
            return false;
        }        

        function GetPlayTimeDuration() {
            player.stopVideo();
            player.clearVideo();
            $get("<%=hfDuration.ClientID %>").value = $('#time').val();
            //$find("mpe").hide();

            if ($get("<%=hfDuration.ClientID %>").value == "") {
                $get("<%=hfDuration.ClientID %>").value = "0";
            }

            isPlaying = false;
            $('#time').val("");
            $get("<%=hfURL.ClientID %>").value = "";

            var UpdatePanel1 = '<%=upSubmit.ClientID%>';            
            if (UpdatePanel1 != null) {
                __doPostBack('<%= btnClose.ClientID %>', '');
            }

        }

        var cnt = 0;
        setInterval(function () {
            if (player != null) {
                if (isPlaying) {
                    player.setPlaybackQuality('hd1440');
                    var tmptime = player.getCurrentTime();
                    tmptime = tmptime - ($('#<%= hfTimeFrame.ClientID %>').val() * tmptime);
                    $('#time').val(tmptime);

                    if (parseFloat($('#<%= hfCutoff.ClientID %>').val()) < parseFloat($('#time').val()))
                        GetPlayTimeDuration();

                }
                else if (!isPlaying) {
                    if ($get("<%=hfURL.ClientID %>").value != "") {
                        ShowModalPopup();
                    }
                }

                cnt++;                
            }
            else {
                player = new YT.Player('player', {
                    height: '420',
                    width: '640',
                    playerVars: { 'autoplay': 1, 'controls': 0, 'showinfo': 0 },
                    events: {
                        //  'onReady': onPlayerReady,
                        'onStateChange': onPlayerStateChange
                    }
                });                
            }
        }, 10);

我的问题是有一段时间错误：

  

未捕获的TypeError：undefined不是函数player.cueVideoById

Answer 1

cueVideoById不是您可以设置为c1 = new NewCookie("session_id", uuid, "/", null, null, COOKIE_MAX_AGE, false); return Response.status(200).cookie(c1).build(); 的播放质量的有效值之一。根据{{​​3}}，可能的值为：

  

  
• 小
  
• 介质
  
• 大
  
• HD720
  
• HD1080
  
• HIGHRES
  
• 默认
  

此外，截至今年，YouTube JavaScript播放器API已被弃用，因此我不希望它以您认为的方式运行。