By default, the base class will guess PTS timestamps using a simple interpolation (previous timestamp + duration), which is incorrect for data streams with reordering, where PTS can go backward.
Sub-classes implementing such formats should disable PTS interpolation.
This value is retained over PAUSED->READY state changes. Subclasses can call this function from their instance init function.
| this |
a Parse |
| pts_interpolate |
true if parser should interpolate PTS timestamps |