3 * Copyright 2004 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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 2, or (at your option)
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.
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.
23 #ifndef INCLUDED_AUDIO_WINDOWS_SINK_H
24 #define INCLUDED_AUDIO_WINDOWS_SINK_H
26 #define WIN32_LEAN_AND_MEAN
27 #define NOMINMAX // stops windef.h defining max/min under cygwin
32 #include <gr_sync_block.h>
36 class audio_windows_sink;
37 typedef boost::shared_ptr <audio_windows_sink> audio_windows_sink_sptr;
39 audio_windows_sink_sptr
40 audio_windows_make_sink (int sampling_freq, const std::string dev = "");
43 * \brief audio sink using winmm mmsystem (win32 only)
45 * input signature is one or two streams of floats.
46 * Input samples must be in the range [-1,1].
49 class audio_windows_sink : public gr_sync_block
52 audio_windows_sink_sptr
53 audio_windows_make_sink (int sampling_freq, const std::string device_name);
56 std::string d_device_name;
62 LPWAVEHDR d_lp_wave_hdr;
63 HANDLE d_wave_write_event;
67 string_to_int (const std::string & s);
68 audio_windows_sink (int sampling_freq, const std::string device_name = "");
70 open_waveout_device (void);
72 write_waveout (HPSTR lp_data, DWORD dw_data_size);
75 ~audio_windows_sink ();
78 work (int noutput_items,
79 gr_vector_const_void_star & input_items,
80 gr_vector_void_star & output_items);
83 #endif /* INCLUDED_AUDIO_WINDOWS_SINK_H */