odd_job/app/admin/view/video/videoform.html

<div class="layui-fluid">
    <div class="layui-row layui-col-space15">
        <div class="layui-col-md12">
            <div class="layui-card">
                <div class="layui-card-header">小视频</div>
                <div class="layui-card-body" pad15>

                    <div class="layui-form layui-form-pane" lay-filter="LAY-video-videoform-edit">
                        <input type="hidden" name="id" value="{$video_data.id}">
                        <div class="layui-form-item">
                            <label class="layui-form-label">公司名称</label>
                            <div class="layui-input-block">
                                <input type="text" name="worker_title" value="{$video_data.worker_title}" readonly="readonly" autocomplete="off" class="layui-input layui-disabled">
                            </div>
                        </div>

                        <div class="layui-form-item">
                            <label class="layui-form-label">小视频标题</label>
                            <div class="layui-input-block">
                                <input type="text" name="video_title" value="{$video_data.video_title}" readonly="readonly" autocomplete="off" class="layui-input layui-disabled">
                            </div>
                        </div>

                        <div class="layui-form-item" id="video-box">
                            <input type="hidden" id="old_videourl" value="{$video_data.videourl}" name="old_videourl"/>
                            <input type="hidden" id="new_videourl" value="" name="new_videourl"/>

                            <label class="layui-form-label">小视频</label>
                            <video id="videoid" width="320" height="240" controls="controls" >

                                <source id="show_video"  src="{$video_data.videourl}" type="video/mp4" />
                            </video>

                        </div>

                        <div class="layui-form-item">
                            <label class="layui-form-label" >小视频封面</label>
                            <input type="hidden"  name="old_imageurl" value="{$video_data.imageurl}">
                            <input type="hidden" id="imageurl" name="imageurl" value="{$video_data.imageurl}">
                            <img id="imgsrc" width="140px" height="240px"  src="{$video_data.imageurl}">
							
							
                        </div>
						
						
                        <div class="layui-form-item" pane>
                            <label class="layui-form-label">状态</label>
                            <div class="layui-input-block">
                                <input type="radio" name="status" value="1" title="待审核" {eq name="video_data.status|default=1" value="1"}checked{/eq}>
                                <input type="radio" name="status" value="2" title="未通过" {eq name="video_data.status" value="2"}checked{/eq}>
                                <input type="radio" name="status" value="3" title="通过" {eq name="video_data.status" value="3"}checked{/eq}>
                            </div>
                        </div>

                        <div class="layui-form-item">
                            <label class="layui-form-label">创建时间</label>
                            <div class="layui-input-block">
                                <input type="text" name="createtime" value="{$video_data.createtime}" readonly="readonly" autocomplete="off" class="layui-input layui-disabled">
                            </div>
                        </div>

                        <div class="layui-form-item">
                            <div class="layui-input-block">
                                <div class="layui-form-mid layui-word-aux">请等待3秒左右（网络不好时会更长时间等待，会在视频加载完成后生成封面图），待封面图生成后再提交保存</div>
                            </div>
                        </div>
						<div class="layui-form-item">
						    <div class="layui-input-block">
						        <input type="button" lay-submit lay-filter="LAY-video-videoform-edit-submit" value="确认提交" class="layui-btn">
						    </div>
						</div>
						
						
                    </div>

                </div>
            </div>
        </div>
    </div>
</div>


<script>
    layui.config({
        base: '/static/echoui/' //静态资源所在路径
    }).extend({
        index: 'lib/index' //主入口模块
    }).use(['index', 'form', 'set', 'layedit', 'layarea'], function() {

        var imageurl = "<?php echo $video_data['imageurl'];?>";


        var $ = layui.$,
            setter = layui.setter,
            admin = layui.admin,
            layedit = layui.layedit,
            form = layui.form;

        var scale = 2;

        form.render();
		setInterval(function (){
			// if(imageurl == "" || imageurl == null || imageurl == undefined){
				//小视频截图
				video = $('#videoid').get(0);
				var canvas = document.createElement("canvas");
				// canvas.scale(20,20);
				canvas.width = video.videoWidth * scale;
				canvas.height = video.videoHeight * scale;
				canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height);
				$("#imgsrc").attr('src',canvas.toDataURL());
				$("#imageurl").val(canvas.toDataURL());

			// }
		}, 3000);




        form.on('submit(LAY-video-videoform-edit-submit)', function(obj) {

            var index = parent.layer.getFrameIndex(window.name);
            admin.req({
                url: setter.baseAdminUrl + 'video/videoform',
                data: obj.field,
                type: 'post',
                done: function(res) {
                    layer.msg("提交成功", {
                        icon: 1
                    });
                    parent.layui.table.reload('LAY-video-videolist-table'); //重载表格
                    parent.layer.close(index);
                }
            });
        });
    });
</script>