1. WeChat official account is developed and designed to upload videos. Qiniu is used to upload videos. It is found that when opening local files in WeChat official account, some mobile phones (Huawei) cannot select video files, and some mobile phones (Meizu Note2) can directly call the photo album. Only pictures can be selected.
2. Qiniu code is as follows:

 var uploader = Qiniu.uploader({
            runtimes: 'html5,flash,html4',
            browse_button: _t.options.obj.substring(1),         // 上传选择的点选按钮DOM ID，必需
            container: $(_t.options.obj).parent().attr("id"),   // 上传区域DOM ID，默认是browser_button的父元素
            drop_element: $(_t.options.obj).parent().attr("id"),// 拖曳上传区域元素的ID，拖曳文件或文件夹后可触发上传
            multi_selection: _t.options.multi_selection,        // 设置一次只能选择一个文件
            flash_swf_url: _t.options.flash_swf_url,            //引入flash，相对路径
            dragdrop: _t.options.dragdrop,                      // 开启可拖曳上传
            chunk_size: _t.options.chunk_size,                  // 分块上传时，每块的体积
            uptoken_url: _t.options.uptoken_url,                // Ajax请求uptoken的Url，强烈建议设置（服务端提供）
            domain: _t.options.domain,                          // bucket域名，下载资源时用到，必需
            get_new_uptoken: false,                             // 设置上传文件的时候是否每次都重新获取新的uptoken
            filters: {
                mime_types: [                                   //只允许上传video
                    {title: "video", extensions: "mp4,mov,avi,wmv,flv"}
                ],
                prevent_duplicates: true                        //不允许选取重复文件
            },
            auto_start: true,                                   // 选择文件后自动上传，若关闭需要自己绑定事件触发上传
            init: {
                'FilesAdded': function (up, files) {
                    _t.options.filesAdded&&_t.options.filesAdded(up,files); // 文件添加进队列后,处理相关的事情
                    plupload.each(files, function (file) {
                        var progress = new FileProgress(file, 'fsUploadProgress');
                        progress.setStatus("等待...");
                        progress.bindUploadCancel(up);

                        _t.options.pluploadEach&&_t.options.pluploadEach(up,file);  //每个文件上传时处理函数
                    });
                },
                'BeforeUpload': function (up, file) {          // 每个文件上传前,处理相关的事情
                    var name=_t.getName(file.name);
                    var fileName = name.fileName;
                    var suffix = name.suffixName;
                    if ((/(mp4)|(mov)|(avi)|(wmv)|(flv)$/i.test(suffix))) {
                        var fileSize = file.size;
                        if (fileSize > _t.options.max_file_size * 1048576) {
                            //alert("视频过大，请联系在线客服寻求帮助");
                            common.topTips.show({
                                class: "videoSize-tips",
                                content: "视频文件过大，无法上传，请重新拍摄"
                            });
                            $('.videoSize-tips').css("z-index","5");
                            setTimeout(function(){
                                $('.videoSize-tips').remove();
                            },3000);
                            uploader.removeFile(uploader.getFile(file.id));
                            return false;
                        } else {

                        }
                    } else {
                        common.popup({
                            text:"格式不支持，请选择mov、mp4、avi、wmv、flv"
                        });
                        //alert("格式不支持，请选择mov、mp4、avi、wmv、flv");
                        uploader.removeFile(uploader.getFile(file.id));
                        return false;
                    }
                    _t.options.beforeUpload&&_t.options.beforeUpload(up,file);   // 每个文件上传前,处理相关的事情
                    var progress = new FileProgress(file, 'fsUploadProgress');
                    var chunk_size = plupload.parseSize(this.getOption('chunk_size'));
                    if (up.runtime === 'html5' && chunk_size) {
                        progress.setChunkProgess(chunk_size);
                    }
                },
                'UploadProgress': function (up, file) {// 每个文件上传时,处理相关的事情
                    var progress = new FileProgress(file, 'fsUploadProgress');
                    var chunk_size = plupload.parseSize(this.getOption('chunk_size'));
                    //progress.setProgress(file.percent + "%", file.speed, chunk_size);

                    _t.options.uploadProgress&&_t.options.uploadProgress(up,file);   // 每个文件上传时,处理相关的事情
                },
                'UploadComplete': function () { //队列文件处理完毕后,处理相关的事情
                    _t.options.uploadComplete&&_t.options.uploadComplete(); //队列文件处理完毕后,处理相关的事情
                },
                'FileUploaded': function (up, file, info) { // 每个文件上传成功后,处理相关的事情
                    var progress = new FileProgress(file, 'fsUploadProgress');
                    progress.setComplete(up, info);

                    if(info){
                        var dataJSON = JSON.parse(info);
                        //t.key=dataJSON.key;
                        //t.persistentId=dataJSON.persistentId;
                        _t.options.fileUploaded&&_t.options.fileUploaded(up,file,dataJSON); // 每个文件上传成功后,处理相关的事情
                    }

                },
                'Error': function (up, err, errTip) {// 每个文件上传失败后,处理相关的事情
                    _t.options.fileUploadError&&_t.options.fileUploadError();
                    var progress = new FileProgress(err.file, 'fsUploadProgress');
                    progress.setError();
                    progress.setStatus(errTip);
                }

            }
        });

3. There is no error reported in the console and there is no problem with the code. Attached are a few pictures of the mobile phone calling the local file system