开始录制完善

slive/src/main/resources/mapper/recordserver/RecordserverMapper.xml

     <!--获取地址-->
     <select id="getPath" resultType="com.xhkjedu.slive.model.recordserver.LRecordserver">
         select r.rsid,r.rspath from(select r.rsid,r.rspath
-        ,(r.rsmaxnum-count(case when cs.sectionid is not null then csp.pbid else null end))synum
+        ,(r.rsmaxnum-count(distinct case when cs.sectionid is not null then cs.sectionid else null end))synum
         from l_recordserver r left join l_course_section_playback csp on r.rsid=csp.rsid
         left join l_course_section cs on csp.sectionid=cs.sectionid and cs.sectionstate=2
         where r.rsstate=1 group by r.rsid having synum!=0)r order by synum desc,rand() limit 1