Advertising technology vendors face a critical couple of years with a double dip pricing collapse projected by 2020, so it was fitting that Faultline Online Reporter spoke with a start-up called Tatari this week – a two-year old outfit addressing the accurate measurement of IP-delivered ad campaigns. But can the fledgling vendor and others like it sustain this growth in the face of harsh times ahead? Tatari’s CEO and co-founder Philip Inghelbrecht, one of the founders of Shazam no less, began with the usual speech about the swing of TV ad dollars from traditional linear to online, while highlighting that linear still represents a 20x greater market than IP-delivery as it stands. Where Tatari slots in is the measurement and…