-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathscaling.html
155 lines (136 loc) · 2.71 KB
/
scaling.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
<!DOCTYPE html>
<html>
<head>
<title>scaling demo</title>
</head>
<body>
<div id="container">
<video id='vid' muted loop autoplay src="./video/avsync_60fps_60s.mp4"></video>
<div id="meta">Lorem Ipsum</div>
</div>
<style>
html {
background-color: #fff;
margin: 0;
padding: 0;
height: 100%;
font-size: 16px;
}
#container {
position: absolute;
width: 1280px;
height: 720px;
-o-transform-origin: 0 0;
-webkit-transform-origin: 0 0;
transform-origin: 0 0;
}
#vid {
position: absolute;
width: 100%;
height: 100%;
left: 0;
top: 0;
z-index: 10;
background-color: #0f0;
-o-transform-origin: 0 0;
-webkit-transform-origin: 0 0;
transform-origin: 0 0;
}
#vid.shrink {
-o-animation: shrink 1s 1 forwards;
-webkit-animation: shrink 1s 1 forwards;
animation: shrink 1s 1 forwards;
}
@-o-keyframes shrink {
from {
-o-transform: scale(1)
}
to {
-o-transform: scale(0.2375) translate(1650.5px, 1650.5px);
}
}
@-webkit-keyframes shrink {
from {
-wekbit-transform: scale(1);
}
to {
-wekbit-transform: scale(0.2375) translate(1650.5px, 1650.5px);
}
}
@keyframes shrink {
from {
transform: scale(1);
}
to {
transform: scale(0.2375) translate(1650.5px, 1650.5px);
}
}
#vid.grow {
-o-animation: grow 1s 1 forwards;
-webkit-animation: grow 1s 1 forwards;
animation: grow 1s 1 forwards;
}
@-o-keyframes grow {
from {
-o-transform: scale(0.2375) translate(1650.5px, 1650.5px);
}
to {
-o-transform: scale(1)
}
}
@-webkit-keyframes grow {
from {
-wekbit-transform: scale(0.2375) translate(1650.5px, 1650.5px);
}
to {
-wekbit-transform: scale(1);
}
}
@keyframes grow {
from {
transform: scale(0.2375) translate(1650.5px, 1650.5px);
}
to {
transform: scale(1);
}
}
#meta {
position: absolute;
width: 17em;
height: 8.7em;
left: 24.5em;
top: 24.5em;
border: 0.5em solid #000;
z-index: 2;
color: #fff;
background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0));
padding: 0.5em;
}
</style>
<script>
var scale = document.documentElement.offsetHeight / 720;
var style = [
'-o-transform: scale(' + scale + ');',
'-webkit-transform: scale(' + scale + ');',
'transform: scale(' + scale + ');'
];
document.getElementById('container').style.cssText = style.join('');
var count = 0;
var vid = document.getElementById('vid');
vid.classList.add('shrink');
vid.addEventListener('animationend', (e) => {
if (++count % 2 == 1) {
vid.style.zIndex = '1';
setTimeout(() => {
vid.classList.remove('shrink')
vid.classList.add('grow');
vid.style.zIndex = '10';
}, 1000);
} else {
vid.classList.remove('grow')
vid.classList.add('shrink');
}
}, false);
</script>
</body>
</html>