hlssink3 - Add Support for NTP timestamp from buffer
This pull request introduces support for using NTP timestamps from the buffer's ReferenceTimestampMeta
property, if it is set in the Gst:Buffer, within hlssink3.
This feature allows the use of the camera's timestamp instead of the UTC timestamp calculated by the plugin.
To include the NTP timestamp in ReferenceTimestampMeta
, users can employ a gst probe to copy this value from the Nvidia buffer, where they enable obtaining the timestamp from each frame.