Gst.ReferenceTimestampMeta

Fields

Name	Type	Access	Description
duration	int	r/w	duration, or Gst.CLOCK_TIME_NONE
parent	Gst.Meta	r/w	the parent Gst.Meta structure
reference	Gst.Caps	r/w	identifier for the timestamp reference.
timestamp	int	r/w	timestamp

Methods

class

get_info ()

Details

class Gst.ReferenceTimestampMeta

Gst.ReferenceTimestampMeta can be used to attach alternative timestamps and possibly durations to a Gst.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 Gst.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

• 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.serialize() and Gst.Meta.deserialize().

New in version 1.14.

classmethod get_info()

Returns:

The Gst.MetaInfo

Return type:

Gst.MetaInfo

Gets the global Gst.MetaInfo describing the Gst.ReferenceTimestampMeta meta.

New in version 1.14.