amr-player play remote amr format audio with JavaScript

copy by https://github.com/alex374/amr-player;

After that, I revised it to make it better.

2019.7.16：

- 1.3.0
- 1、修复第一次为播放结束第二次没播放结束会自动中断播放问题
- 2、新增 按钮可操作播放器播放功能(必须amr文件) 并且可返回播放回调状态

2019.7.15：

- 1.2.0
- 1、修复播放结束,播放器还在计时的问题
- 2、修复页面同时创建多个元素时,页面很卡的问题
- 3、优化了如果当前播放文件地址和页面URL协议不一致,则自动替换文件的协议地址为页面URL协议地址(可修改'this.changeProtocol' = false 则不自动替换)

2018.7.26：

- 1.1.0
- if the url not include ".amr", then use "audio" element play

2018.7.16：

- 1.0.0
- can simply play amr file, can play multiple amr at the same time

AmrPlayer usage:

   <amr src="xx.amr" autoplay="autoplay"></amr>
   <script src="amr-player-master/jquery-1.8.3.min.js" type="text/javascript" charset="utf-8"></script>
   <script src="amr-player-master/amrnb.js" type="text/javascript" charset="utf-8"></script>
   <script src="amr-player-master/amrplayer.js" type="text/javascript" charset="utf-8"></script>
   <script type="text/javascript">
   		// init page amr ele
		var player = new amrEvent($("amr"));
		
		How to Play:
		
		1、Click on the Play button for the amr ele
		
		2、Call this 'playAmr' method to play
		
		function playAmr(){
			player && player.play(function(playing){
				console.log("current player playing ?? " + playing)
			})
		}
	</script>

property:

> src : amr url
  autoplay : can autoplay

show amr player: