GNU Radio 3.5.3.2 C++ API
audio_oss_source.h
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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2004-2011 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_AUDIO_OSS_SOURCE_H
00024 #define INCLUDED_AUDIO_OSS_SOURCE_H
00025 
00026 #include <gr_audio_source.h>
00027 #include <string>
00028 
00029 /*!
00030  * \brief audio source using OSS
00031  * \ingroup audio_blk
00032  *
00033  * Output signature is one or two streams of floats.
00034  * Output samples will be in the range [-1,1].
00035  */
00036 
00037 class audio_oss_source : public audio_source {
00038 
00039   int           d_sampling_rate;
00040   std::string   d_device_name;
00041   int           d_fd;
00042   short        *d_buffer;
00043   int           d_chunk_size;
00044 
00045 public:
00046   audio_oss_source (int sampling_rate,
00047                     const std::string device_name = "",
00048                     bool ok_to_block = true);
00049 
00050   ~audio_oss_source ();
00051   
00052   int work (int noutput_items,
00053             gr_vector_const_void_star &input_items,
00054             gr_vector_void_star &output_items);
00055 };
00056 
00057 
00058 
00059 #endif /* INCLUDED_AUDIO_OSS_SOURCE_H */