PREVIEW VIDEO BEFORE SAVING IN RAILS
Preview Video Before Saving
html page
<h1>HTML5 local video file player example</h1><div id="message"></div>
<input type="file" accept="video/*"/>
<video controls autoplay></video>
<script type="text/javascript">
(function localFileVideoPlayer() {
'use strict'
var URL = window.URL || window.webkitURL
var displayMessage = function (message, isError) {
var element = document.querySelector('#message')
element.innerHTML = message
element.className = isError ? 'error' : 'info'
}
var playSelectedFile = function (event) {
var file = this.files[0]
var type = file.type
var videoNode = document.querySelector('video')
var canPlay = videoNode.canPlayType(type)
if (canPlay === '') canPlay = 'no'
var message = 'Can play type "' + type + '": ' + canPlay
var isError = canPlay === 'no'
displayMessage(message, isError)
if (isError) {
return
}
var fileURL = URL.createObjectURL(file)
videoNode.src = fileURL
}
var inputNode = document.querySelector('input')
inputNode.addEventListener('change', playSelectedFile, false)
})()
</script>
<style type="text/css">
video, input {
display: block;
}
input {
width: 100%;
}
.info {
background-color: aqua;
}
.error {
background-color: red;
color: white;
}
</style>
