n value="webgpu" selected>webgpu</option>
            </select>
            <span id="supportWebgpu"></span>
        </div>
        <div class="input">
            <div>
                <span>缓存时长：</span>
                <input placeholder="单位：秒" type="text" id="videoBuffer" style="width: 50px" value="0.2">秒
                <span>缓存延迟(延迟超过会触发丢帧)：</span>
                <input placeholder="单位：秒" type="text" id="videoBufferDelay" style="width: 50px" valu