GlobalTimestampFitter: custom host timestamp#160
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This change allows the SDK user to provide a custom timestamp function. The current default timestamp function gets the global time, which is subject to NTP updates. Some users (e.g. me) might want to replace the estimated timestamp with their own function so that we can use a monotonic time source. `IGlobalTimestampFitter` gets two new methods: - `setHostClockFn`: replace the default clock function with a custom one - `setMaxValidRtt`: now exposed in the interface, the max RTT before discarding a time sample. `HostClockFn` is expected to return a microsecond time value. The new functionality is also exposed in the C API.
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This change allows the SDK user to provide a custom timestamp function. The current default timestamp function gets the global time, which is subject to NTP updates. Some users (e.g. me) might want to replace the estimated timestamp with their own function so that we can use a monotonic time source.
IGlobalTimestampFittergets two new methods:setHostClockFn: replace the default clock function with a custom onesetMaxValidRtt: now exposed in the interface, the max RTT before discarding a time sample.HostClockFnis expected to return a microsecond time value.The new functionality is also exposed in the C API.