gr-baz Package
audio_oss_source.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004-2011 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 #ifndef INCLUDED_AUDIO_OSS_SOURCE_H
24 #define INCLUDED_AUDIO_OSS_SOURCE_H
25 
26 #include <gr_audio_source.h>
27 #include <string>
28 
29 /*!
30  * \brief audio source using OSS
31  * \ingroup audio_blk
32  *
33  * Output signature is one or two streams of floats.
34  * Output samples will be in the range [-1,1].
35  */
36 
38 
39  int d_sampling_rate;
40  std::string d_device_name;
41  int d_fd;
42  short *d_buffer;
43  int d_chunk_size;
44 
45 public:
46  audio_oss_source (int sampling_rate,
47  const std::string device_name = "",
48  bool ok_to_block = true);
49 
51 
52  int work (int noutput_items,
53  gr_vector_const_void_star &input_items,
54  gr_vector_void_star &output_items);
55 };
56 
57 
58 
59 #endif /* INCLUDED_AUDIO_OSS_SOURCE_H */