gst.reference_timestamp_meta

Module for [ReferenceTimestampMeta] class

class ReferenceTimestampMeta

Types 1

classReferenceTimestampMeta

#GstReferenceTimestampMeta can be used to attach alternative timestamps and possibly durations to a #GstBuffer. 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 #GstCaps 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

  • timestamp/x-ntp, host=pool.ntp.org, port=123: for timestamps based on a

specific NTP server. Note that the host/port parameters might not always be given.

  • timestamp/x-ptp, version=IEEE1588-2008, domain=1: for timestamps based

on a given PTP clock.

  • timestamp/x-unix: for timestamps based on the UNIX epoch according to

the local clock.

Since 1.24 it can be serialized using [gst.meta.Meta.serialize] and [gst.meta.Meta.deserialize].

Fields
GstReferenceTimestampMeta _cInstance
Methods
void * _cPtr()
gst.meta.Meta parent() @propertyGet `parent` field. Returns: the parent #GstMeta structure
gst.caps.Caps reference() @propertyGet `reference` field. Returns: identifier for the timestamp reference.
void reference(gst.caps.Caps propval) @propertySet `reference` field. Params: propval = identifier for the timestamp reference.
gst.types.ClockTime timestamp() @propertyGet `timestamp` field. Returns: timestamp
void timestamp(gst.types.ClockTime propval) @propertySet `timestamp` field. Params: propval = timestamp
gst.types.ClockTime duration() @propertyGet `duration` field. Returns: duration, or [gst.types.CLOCKTIMENONE]
void duration(gst.types.ClockTime propval) @propertySet `duration` field. Params: propval = duration, or [gst.types.CLOCKTIMENONE]
gst.meta_info.MetaInfo getInfo()Gets the global #GstMetaInfo describing the #GstReferenceTimestampMeta meta. Returns: The #GstMetaInfo
Constructors
this(void * ptr, Flag!"Take" take)