[ Version ( since = "1.14" ) ]
public struct ReferenceTimestampMeta
ReferenceTimestampMeta can be used to attach alternative timestamps and possibly durations to a Buffer.
These are generally not according to the pipeline clock and could be e.g. the NTP timestamp when the media was captured.
The reference is stored as a Caps in
reference. Examples of valid
references would be `timestamp/x-drivername-stream` for timestamps that are locally generated by some driver named `drivername` when generating
the stream, e.g. based on a frame counter, or `timestamp/x-ntp, host=pool.ntp.org, port=123` for timestamps based on a specific NTP server.