2 PASS Test setting SourceBuffer.timestampOffset to a positive number.
3 PASS Test setting SourceBuffer.timestampOffset to a negative number.
4 PASS Test setting SourceBuffer.timestampOffset to zero.
5 PASS Test setting SourceBuffer.timestampOffset to positive infinity.
6 PASS Test setting SourceBuffer.timestampOffset to negative infinity.
7 PASS Test setting SourceBuffer.timestampOffset to NaN.
8 PASS Test setting SourceBuffer.timestampOffset to undefined.
9 PASS Test setting SourceBuffer.timestampOffset to null.
10 PASS Test setting SourceBuffer.timestampOffset to false.
11 PASS Test setting SourceBuffer.timestampOffset to true.
12 PASS Test setting SourceBuffer.timestampOffset to a number string.
13 PASS Test setting SourceBuffer.timestampOffset to an empty string.
14 PASS Test setting timestampOffset in 'ended' state causes a transition to 'open'.