| 724 | var rtcAudioPlayTimeSkips=[0,0,0]; |
| 725 | var rtcAudioPlayTimeSkip=0; |
| 726 | var rtcAuidoPlay=function(){ |
| 727 | if(rtcPlayModeDecode.checked){ |
| 728 | return; |
| 729 | }; |
| 730 | if(!rtcAudioPlay1){ |
| 731 | rtcAudioPlay1=$(".webrtcPlay1")[0]; |
| 732 | rtcAudioPlay2=$(".webrtcPlay2")[0]; |
| 733 | |
| 734 | setInterval(function(){//audio currentTime精度太低，暴力计算 |
| 735 | var audio=rtcAudioPlayCur; |
| 736 | if(audio.rtcPlayID!=rtcAudioPlayID){ |
| 737 | return; |
| 738 | }; |
| 739 | if(rtcAudioPlayNextTime<=Date.now()+3){ |
| 740 | audio.rtcPlayID=-1; |
| 741 | rtcAuidoPlay(); |
| 742 | }; |
| 743 | },6); |
| 744 | //计算从开始播放到发出声音的延迟 |
| 745 | rtcAudioPlay1.onplaying=rtcAudioPlay2.onplaying=function(e){ |
| 746 | var audio=e.target; |
| 747 | audio.rtcPlayID=rtcAudioPlayID; |
| 748 | rtcAudioPlayTimeSkips.splice(0,0,Date.now()-rtcAudioPlayTime); |
| 749 | rtcAudioPlayTime=Date.now(); |
| 750 | |
| 751 | if(rtcAudioPlayTimeSkips.length>3){ |
| 752 | rtcAudioPlayTimeSkips.length=3; |
| 753 | }; |
| 754 | |
| 755 | rtcAudioPlayTimeSkip=(rtcAudioPlayTimeSkips[0]+rtcAudioPlayTimeSkips[1]+rtcAudioPlayTimeSkips[2])/3; |
| 756 | |
| 757 | //不关闭上一个，让它继续播放完结尾，衔接起来好些 |
| 758 | //rtcAudioPlayPrev&&rtcAudioPlayPrev.pause(); |
| 759 | |
| 760 | var sd=audio.duration*1000; |
| 761 | var pd=rtcAudioPlayItm.duration; |
| 762 | var duration=sd; |
| 763 | var skip=0; |
| 764 | if(pd<sd){//编码器并不一定精确时间的编码，mp3首尾有静默但长度未知 |
| 765 | duration=pd; |
| 766 | //分别跳过首尾（其实保留尾） |
| 767 | skip=(sd-pd)/2; |
| 768 | }; |
| 769 | |
| 770 | rtcAudioPlayNextTime=Date.now()+duration-skip-rtcAudioPlayTimeSkip; |
| 771 | }; |
| 772 | }; |
| 773 | |
| 774 | |
| 775 | if(rtcPlayBuffer.length<1){ |
| 776 | return; |
| 777 | }; |
| 778 | if(rtcAudioPlayCur && rtcAudioPlayCur.rtcPlayID!=-1){ |
| 779 | return; |
| 780 | }; |
| 781 | |
| 782 | rtcAudioPlayCur=rtcAudioPlayCur==rtcAudioPlay1?rtcAudioPlay2:rtcAudioPlay1; |
| 783 | rtcAudioPlayPrev=rtcAudioPlayCur==rtcAudioPlay2?rtcAudioPlay1:rtcAudioPlay2; |