Return a constantly incrementing sequence number.
This function is used internally to GStreamer to be able to determine which
events and messages are "the same". For example, elements may set the seqnum
on a segment-done message to be the same as that of the last seek event, to
indicate that event and the message correspond to the same segment.
A constantly incrementing 32-bit unsigned integer, which might overflow back to 0 at some point. Use gst_util_seqnum_compare() to make sure you handle wraparound correctly.
Return a constantly incrementing sequence number. This function is used internally to GStreamer to be able to determine which events and messages are "the same". For example, elements may set the seqnum on a segment-done message to be the same as that of the last seek event, to indicate that event and the message correspond to the same segment.