gr-baz Package
gr_fastnoise_source_c.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with GNU Radio; see the file COPYING. If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 // WARNING: this file is machine generated. Edits will be overwritten
24 
25 #ifndef INCLUDED_GR_GR_FASTNOISE_SOURCE_C_H
26 #define INCLUDED_GR_GR_FASTNOISE_SOURCE_C_H
27 
28 #include <gr_core_api.h>
29 #include <gr_sync_block.h>
30 #include <gr_noise_type.h>
31 #include <gr_random.h>
32 
33 
36 
37 /*! \brief Make a noise source
38  * \param type the random distribution to use (see gr_noise_type.h)
39  * \param ampl a scaling factor for the output
40  * \param seed seed for random generators. Note that for uniform and
41  * Gaussian distributions, this should be a negative number.
42  * \param samples number of samples to pre-generate.
43  */
45 gr_make_fastnoise_source_c (gr_noise_type_t type, float ampl, long seed = 0, long samples=1024*16);
46 
47 /*!
48  * \brief Random number source
49  * \ingroup source_blk
50  *
51  * \details
52  * Generate random values from different distributions.
53  * Currently, only Gaussian and uniform are enabled.
54  *
55  * \param type the random distribution to use (see gr_noise_type.h)
56  * \param ampl a scaling factor for the output
57  * \param seed seed for random generators. Note that for uniform and
58  * Gaussian distributions, this should be a negative number.
59  * \param samples number of samples to pre-generate.
60  */
63 
64  gr_make_fastnoise_source_c (gr_noise_type_t type, float ampl, long seed, long samples);
65 
66  gr_noise_type_t d_type;
67  float d_ampl;
68  gr_random d_rng;
69  std::vector<gr_complex> d_samples;
70 
71  gr_fastnoise_source_c (gr_noise_type_t type, float ampl, long seed = 0, long samples=1024*16);
72 
73  public:
74  void set_type (gr_noise_type_t type) { d_type = type; generate(); }
75  void set_amplitude (float ampl) { d_ampl = ampl; generate(); }
76  void generate();
77 
78  gr_noise_type_t type () const { return d_type; }
79  float amplitude () const { return d_ampl; }
80 
81  virtual int work (int noutput_items,
82  gr_vector_const_void_star &input_items,
83  gr_vector_void_star &output_items);
84 };
85 
86 
87 #endif