ReferenceTimestampMeta
Added in version 1.14.
- class ReferenceTimestampMeta(*args, **kwargs)
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 nameddrivername
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.
Methods
- class ReferenceTimestampMeta
- get_info() MetaInfo
Gets the global
MetaInfo
describing theReferenceTimestampMeta
meta.Added in version 1.14.