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README
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README
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#
# Copyright 2005,2006,2009,2014 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
This directory contains the GNU Radio eventstream scheduler
These blocks are intended to help improve the translation of
streams of data items into scheduled-finite length events
occurring in the data streams in both directions.
* es.sink provides the translation from stream to events
* es.source provides the translation from events to streams
* triggers cause events to be scheduled in es.source
and es.sink block event queues.
Some examples of specific triggers included are,
- es_trigger_edge_f: cause an event when float stream rises
above a fixed threshold value
- es_trigger_sample_timer: cause an event to occur on
a periodic sample increment in the stream
* handlers consume events and do some ammount of signal
processing on them
Some example of specific handlers included are,
- es_handler_print: print the event to STDOUT
- es_handler_pdu: convert the event to a PDU and send
it out a message port
- es_handler_insert_vector: a source handler which
populates an event window from a PMT vector
- es_handler_file: a sink handler which writes event
contents out to a file