Edge Case - Wrong DeltaTimes in _createMediaSequences(), specifically [ TYPE-A ]

[Nfrederiksen]

In function _createMediaSequences()

The Delta times calculation (this.deltaTimes, this.deltaTimesAudio) is wrong in the case where 2 or more segments were added in the next sequence.

The var positionIncrement assumes that the last segment in the sequence is the only newly added one. So eg. in the case where a sequence popped a 6s segment and added two 3s segments, currently the second segment duration is not accounted for in the delta times.

It has gone unnoticed since the side effects were not apparent in most use cases. But if you have a case where deltaTimes and playhead positions are important, then this should be fixed.

NOTE: This is issue already fixed when enabling the this.sequenceAlwaysContainNewSegments option [ TYPE-B ]