The forward-sample seam a batch range walk reads: the track's own timing
origin and one stream of its frames in presentation order. Both sample-
yielding paths present this shape, so the walk never branches on which decoder
it got, and every sample it hands over carries a close obligation.
The forward-sample seam a batch range walk reads: the track's own timing origin and one stream of its frames in presentation order. Both sample- yielding paths present this shape, so the walk never branches on which decoder it got, and every sample it hands over carries a close obligation.