DOUAudioEventLoop: Clean up
DOUAudioEventLoop: Clean up

NghiaTranUIT/DOUAudioStreamer,douban/DOUAudioStreamer,zhouwude/DOUAudioStreamer,eyu1988/DOUAudioStreamer,zhouwude/DOUAudioStreamer,Learn-IOS/DOUAudioStreamer,sunfei/DOUAudioStreamer,talkmate/DOUAudioStreamer,zhantss/DOUAudioStreamer,ycaihua/DOUAudioStreamer,cute/DOUAudioStreamer,sunfei/DOUAudioStreamer,talkmate/DOUAudioStreamer,xuanyi0627/DOUAudioStreamer,NghiaTranUIT/DOUAudioStreamer,cute/DOUAudioStreamer,QiuZhiFei/DOUAudioStreamer,jonesgithub/DOUAudioStreamer,sunfei/DOUAudioStreamer,douban/DOUAudioStreamer,ycaihua/DOUAudioStreamer,hjw6160602/DOUAudioStreamer,royalwang/DOUAudioStreamer,xuanyi0627/DOUAudioStreamer,NghiaTranUIT/DOUAudioStreamer,Learn-IOS/DOUAudioStreamer,royalwang/DOUAudioStreamer,eyu1988/DOUAudioStreamer,hjw6160602/DOUAudioStreamer,xuanyi0627/DOUAudioStreamer,jonesgithub/DOUAudioStreamer,royalwang/DOUAudioStreamer,zhantss/DOUAudioStreamer,hjw6160602/DOUAudioStreamer,QiuZhiFei/DOUAudioStreamer