/* * Copyright 2006,2008 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 #include #include #include // Shared pointer constructor dial_tone_sptr make_dial_tone() { return gnuradio::get_initial_sptr(new dial_tone()); } // Hierarchical block constructor, with no inputs or outputs dial_tone::dial_tone() : gr_top_block("dial_tone") { gr_sig_source_f_sptr src0 = gr_make_sig_source_f(48000, GR_SIN_WAVE, 350, 0.1); gr_sig_source_f_sptr src1 = gr_make_sig_source_f(48000, GR_SIN_WAVE, 440, 0.1); audio_alsa_sink_sptr sink = audio_alsa_make_sink(48000); connect(src0, 0, sink, 0); connect(src1, 0, sink, 1); }