下载某个视频一直会报错，播放是正常的

你好，我们用 AliyunVodDownLoadManager 使用STS方式下载下载mp4视频，

发现下载回调接口返回如下

- (void)onError:(AliyunDownloadMediaInfo *)mediaInfo code:(int)code msg:(NSString *)msg 
code: 4106
msg: 视频下载流无效或地址过期
mediainfo:
{"quality":6,"downloadProgress":83,"downloadFileName":"2cf128ae87c94ab1b87e6d497935cfca_mp4_6.mp4","vid":"2cf128ae87c94ab1b87e6d497935cfca","title":"1 MILLION - Happy - Sori Na Choreography.mp4","size":6193482,"infoReport":{"manager":{"enabled":true,"logConfig":{"printLog":false}},"publicParams":{"osVersion":"11.2.6","videoType":"vod","applicationName":"Closer","time":"1523592998950","referer":"","operationSystem":"iOS","logVersion":"1.0","saasPlayUI":"","requestID":"49509F49-D301-417C-9900-09702FEA3CE1","appVersion":"3.4.0","businessID":"","uuid":"4978886E-EA21-4B7D-B549-A70816E6BC35","videoUrl":"","subModule":"download","userAccount":"","connection":"wifi","definition":"od","userAgent":"","logStore":"newplayer","hostName":"192.168.136.41","deviceModel":"iPhone10,1","product":"player","cdnIP":"0.0.0.0","applicatonID":"com.test.|iOS","module":"saas_player","terminalType":"phone","logLevel":"info"},"mCanSend":true},"downloadFilePath":"\/var\/mobile\/Containers\/Data\/Application\/C6A56EEE-432B-44A1-91D0-3B10F87C6348\/Documents\/cache_video\/2cf128ae87c94ab1b87e6d497935cfca_mp4_6.mp4","format":"mp4","duration":95,"coverURL":"/image\/cover\/C1CCD9353799443094C9535C3DEA8794-6-2.png"}

log中还有一部分这个显示
nothing left running.
codec unsupported [8] 
prepare source error is -1
source convert failed:-1

但是如果用高级播放器使用sts方式播放vid 是可以播放的。请问是否可以查看下这个问题。

aliyunvideo / AliyunPlayer_iOS

下载某个视频一直会报错，播放是正常的 #3