aSource.isTypeSupported('video/mp4; codecs="hev1.1.6.L123.b0"');
    }


    function create() {
        jessibuca = new JessibucaPro({
            container: $container,
            videoBuffer: 0.2, // 缓存时长
            decoder: './decoder-pro.js',
            isResize: false,
            text: "",
            loadingText: "加载中",
            debug: true,
            debugLevel: 'debug',
            showBandwidth: showOperateBtns, // 显示网速
            showPerformance: sho