From e22224454f63be561fa2a5923d35b65ba403b6ac Mon Sep 17 00:00:00 2001
From: Eric Blossom <eb@comsec.com>
Date: Fri, 30 Apr 2010 18:22:41 -0700
Subject: Add missing buffer allocator hint to gr_ofdm_sampler.cc
This change was needed because gr_ofdm_sampler derives directly from
gr_block, but functions (from the runtime's point of view) as a
decimator. It takes many items in to produce a single output
item. Without this change, values of fft_size > ~4096 would result
in the scheduler complaining that it could never fullfil the block's
request for samples.
When deriving from gr_sync_interpolator or gr_sync_decimator, their
constructors set the hint automatically.
---
gnuradio-core/src/lib/general/gr_ofdm_sampler.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'gnuradio-core/src')
diff --git a/gnuradio-core/src/lib/general/gr_ofdm_sampler.cc b/gnuradio-core/src/lib/general/gr_ofdm_sampler.cc
index 74bd65a50a..7f6b2b01c9 100644
--- a/gnuradio-core/src/lib/general/gr_ofdm_sampler.cc
+++ b/gnuradio-core/src/lib/general/gr_ofdm_sampler.cc
@@ -1,6 +1,6 @@
/* -*- c++ -*- */
/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
+ * Copyright 2007,2008,2010 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
@@ -45,6 +45,7 @@ gr_ofdm_sampler::gr_ofdm_sampler (unsigned int fft_length,
gr_make_io_signature2 (2, 2, sizeof (gr_complex)*fft_length, sizeof(char)*fft_length)),
d_state(STATE_NO_SIG), d_timeout_max(timeout), d_fft_length(fft_length), d_symbol_length(symbol_length)
{
+ set_relative_rate(1.0/(double) fft_length); // buffer allocator hint
}
void
--
cgit v1.2.3