public Recording(StreamReader sr) : this()
{
var first = sr.ReadLine(); // start
if (first.Equals(EMPTY))
{
return;
}
string line = sr.ReadLine();
while (!line.Equals(END))
{
Keyframe k = Keyframe.Build(line, this);
Keyframes.AddLast(k);
line = sr.ReadLine();
}
}