Example Usage

Tagging frames from a Dirac video file with a frame number, starting with 1:

Pipeline( RateControlledFileReader("videofile.dirac", readmode="bytes", rate=... ),
          DiracDecoder(),
          TagWithSequenceNumber(initial=1),
          ...
        )

Behaviour

At initialisation, specify the initial sequence number to use.

Send an item to TagWithSequenceNumber's "inbox" inbox, and it will send (seqnum, item) to its "outbox" outbox.

The sequence numbers begin 0, 1, 2, 3, ... etc ad infinitum.

If a producerFinished or shutdownMicroprocess message is received on the "control" inbox. It is immediately sent on out of the "signal" outbox and the component then immediately terminates.

class TagWithSequenceNumber(Axon.Component.component)

TagWithSequenceNumber() -> new TagWithSequenceNumber component.

Send 'item' to the "inbox" inbox and it will be tagged with a sequence number, and sent out as (seqnum, 'item') to the "outbox" outbox.

Sequence numbering goes 0, 1, 2, 3, ... etc.