The goal of this example is to see how the players implement the begin = delay attribute on an object O in a sequence node when the previous object of O is a discrete object without any attribute.
<seq>
<img id = "image1">
<img id = "image2" begin = "3s" dur = "7s">
<img id = "image3" dur = "2s">
</seq>
We take to compute the Smil behavior of this example the rule that a begin = delay inside a seq expresses a delay from the Desired End of the previous child and not from the Effective end of it (as mentionned in the specification), in order to avoid a cyclic system of equations.
It is known that the GRiNS player does not correctly implement the fill attribute.
The difficulty is masked by the used of a default value equal to 5 secondes for a discrete object without attributes.