From 99acedb3431f2d1f0614c4ce4d3b4e4f68760943 Mon Sep 17 00:00:00 2001
From: Trek H <trek.hopton@gmail.com>
Date: Thu, 18 Jul 2019 16:04:50 +0930
Subject: [PATCH] audio-player: playing pcm in browser

---
 cmd/audio-player/main.js | 39 +++++++++++++++++++--------------------
 1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/cmd/audio-player/main.js b/cmd/audio-player/main.js
index 92795a5f..174b9059 100644
--- a/cmd/audio-player/main.js
+++ b/cmd/audio-player/main.js
@@ -1,25 +1,24 @@
 window.onload = function () {
-    document.getElementById('input').addEventListener('change', getFile)
+    document.getElementById('input').addEventListener('change', playFile)
 }
 
-function getFile(){
-    const input = event.target
-    if ('files' in input && input.files.length > 0) {
-        placeFileContent(document.getElementById('content'), input.files[0])
-    }
+function playFile() {
+    const input = event.target.files[0]
+
+    const reader = new FileReader()
+    reader.onload = event => playData(event.target.result) // desired file content
+    reader.onerror = error => reject(error)
+    reader.readAsArrayBuffer(input) // you could also read images and other binaries
 }
 
-function placeFileContent(target, file) {
-	readFileContent(file).then(content => {
-        target.value = content
-    }).catch(error => console.log(error))
-}
-
-function readFileContent(file) {
-	const reader = new FileReader()
-    return new Promise((resolve, reject) => {
-        reader.onload = event => resolve(event.target.result)
-        reader.onerror = error => reject(error)
-        reader.readAsText(file)
-    })
-}
+function playData(array){
+    var data = new Uint8Array(array)
+    console.log("playing file")
+    var player = new PCMPlayer({
+        encoding: '16bitInt',
+        channels: 1,
+        sampleRate: 48000,
+        flushingTime: 2000
+    });
+    player.feed(data)
+}
\ No newline at end of file