Buffer.addReferenceTimestampMeta

gst.reference_timestamp_meta.ReferenceTimestampMeta addReferenceTimestampMeta(gst.caps.Caps reference,  gst.types.ClockTime timestamp,  gst.types.ClockTime duration)

Adds a #GstReferenceTimestampMeta to buffer that holds a timestamp and optionally duration based on a specific timestamp reference. See the documentation of #GstReferenceTimestampMeta for details.

Parameters

`reference`	identifier for the timestamp reference.
`timestamp`	timestamp
`duration`	duration, or gst.types.CLOCK_TIME_NONE

Returns

The #GstReferenceTimestampMeta that was added to the buffer