amr-file-player Use JavaScript to play audio in remote amr-nb and amr-wb formats

inpired by https://github.com/yxl/opencore-amr-js (amr-nb) https://github.com/sblandford/amrwb-js (amr-wb)

-- AmrFilePlayer --

params:

amr_url
download_success_cb (optional)
download_progress_cb (optional)

props:

bool canPlay
bool isPlaying

methods:

play()
pause()
toggle() // play() when paused or pause() when playing
endWith(callback) // optional, fire callback with ended event

usage: <script src="xxx/amrnb.js"></script> <script src="xxx/amrwb.js"></script> <script src="xxx/amrwb-util.js"></script> <script src="xxx/amrplayer.js"></script>

var player = new AmrPlayer('http://xxx/xxx.amr');
player.endWith(function(){ console.log( xxx ) });
player.play();
// or player.pause();
// or player.toggle();