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author | manojgudi | 2013-10-01 17:22:29 +0530 |
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committer | manojgudi | 2013-10-01 17:22:47 +0530 |
commit | ed97c528ce61496e10d612a4f5e9aef509b65ccf (patch) | |
tree | 81c10c71bd20df77e65d02056b3f2b022299b4ea /gr-atsc/src/lib/GrAtscConvert2xTo20.cc | |
parent | e25fe808cf6a20e9469d1380d497e23205a379b6 (diff) | |
download | gnuradio-ed97c528ce61496e10d612a4f5e9aef509b65ccf.tar.gz gnuradio-ed97c528ce61496e10d612a4f5e9aef509b65ccf.tar.bz2 gnuradio-ed97c528ce61496e10d612a4f5e9aef509b65ccf.zip |
Removed unwanted blocks and changed CMakefile
Diffstat (limited to 'gr-atsc/src/lib/GrAtscConvert2xTo20.cc')
-rw-r--r-- | gr-atsc/src/lib/GrAtscConvert2xTo20.cc | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/gr-atsc/src/lib/GrAtscConvert2xTo20.cc b/gr-atsc/src/lib/GrAtscConvert2xTo20.cc deleted file mode 100644 index 1f540464d..000000000 --- a/gr-atsc/src/lib/GrAtscConvert2xTo20.cc +++ /dev/null @@ -1,106 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2002 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. - */ - -#include <GrAtscConvert2xTo20.h> -#include <atsc_consts.h> -#include <cmath> -#include <cstdio> - -static const int N_OUTPUTS = 1; -static const double DEC_RATIO = (2.0 * ATSC_SYMBOL_RATE) / 20e6; // ~ 1.076 - -GrAtscConvert2xTo20::GrAtscConvert2xTo20 () - : VrDecimatingSigProc<float,float> (N_OUTPUTS, (int) rint (DEC_RATIO)) -{ - d_next_input = 0; - d_frac_part = 0; - history = 2 * d_interp.ntaps (); // some slack -} - -GrAtscConvert2xTo20::~GrAtscConvert2xTo20 () -{ - // Nop -} - -void -GrAtscConvert2xTo20::pre_initialize () -{ - fprintf (stderr, - "GrAtscConvert2xTo20: input freq = %g\n", getInputSamplingFrequencyN(0)); - fprintf (stderr, - "GrAtscConvert2xTo20: DEC_RATIO = %g\n", DEC_RATIO); - fprintf (stderr, - "GrAtscConvert2xTo20: argument to setSamplingFrequency = %g\n", - getInputSamplingFrequencyN(0) / DEC_RATIO); - - int r; - r = setSamplingFrequency (getInputSamplingFrequencyN (0) / DEC_RATIO); - - fprintf (stderr, "GrAtscConvert2xTo20: result = %d\n", r); - - fprintf (stderr, "GrAtscConvert2xTo20: getSamplingFrequency = %g\n", - getSamplingFrequency ()); -} - - -int -GrAtscConvert2xTo20::forecast (VrSampleRange output, - VrSampleRange inputs[]) -{ - assert (numberInputs == 1); // I hate these free references to - // superclass's instance variables... - - inputs[0].index = d_next_input; - inputs[0].size = - ((long unsigned int) (output.size * DEC_RATIO) + history - 1); - - return 0; -} - -int -GrAtscConvert2xTo20::work (VrSampleRange output, void *ao[], - VrSampleRange inputs[], void *ai[]) -{ - float *in = ((float **) ai)[0]; - float *out = ((float **) ao)[0]; - - sync (output.index); - - unsigned long si = 0; // source index - unsigned long oi = 0; // output index - double frac_part = d_frac_part; - - for (oi = 0; oi < output.size; oi++){ - assert (si + d_interp.ntaps () < inputs[0].size); - out[oi] = d_interp.interpolate (&in[si], (1. - frac_part)); - - double s = frac_part + DEC_RATIO; - double float_incr = floor (s); - frac_part = s - float_incr; - int incr = (int) float_incr; - si += incr; - } - - d_next_input += si; - d_frac_part = frac_part; - return output.size; -} |