hello j2innet,
getSensorTimestamp() fetch the timestamps from sensor hardware, i.e. hardware sync-points of CSI frame-start.
however, EGL stream capture that timestamp by system time.
as Topic 78821 discussed, there’s gap between system time and TSC HW timestamp.
please expect next public release, (i.e. JetPack-4.5 / l4t-r32.5) will using new interfaces to expose hardware timestamps into camera software stack.
thanks