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Diffstat (limited to 'gr-audio/lib/windows/audio_windows_sink.h')
| -rw-r--r-- | gr-audio/lib/windows/audio_windows_sink.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gr-audio/lib/windows/audio_windows_sink.h b/gr-audio/lib/windows/audio_windows_sink.h new file mode 100644 index 000000000..6819bd448 --- /dev/null +++ b/gr-audio/lib/windows/audio_windows_sink.h @@ -0,0 +1,72 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004-2011 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. + */ + +#ifndef INCLUDED_AUDIO_WINDOWS_SINK_H +#define INCLUDED_AUDIO_WINDOWS_SINK_H + +#define WIN32_LEAN_AND_MEAN +#define NOMINMAX // stops windef.h defining max/min under cygwin + +#include <windows.h> +#include <mmsystem.h> + +#include <gr_audio_sink.h> +#include <string> + +/*! + * \brief audio sink using winmm mmsystem (win32 only) + * + * input signature is one or two streams of floats. + * Input samples must be in the range [-1,1]. + */ + +class audio_windows_sink : public audio_sink +{ + int d_sampling_freq; + std::string d_device_name; + int d_fd; + short *d_buffer; + int d_chunk_size; + HWAVEOUT d_h_waveout; + HGLOBAL d_h_wave_hdr; + LPWAVEHDR d_lp_wave_hdr; + HANDLE d_wave_write_event; + +protected: + int + string_to_int (const std::string & s); + int + open_waveout_device (void); + int + write_waveout (HPSTR lp_data, DWORD dw_data_size); + +public: + audio_windows_sink (int sampling_freq, const std::string device_name = ""); + ~audio_windows_sink (); + + int + work (int noutput_items, + gr_vector_const_void_star & input_items, + gr_vector_void_star & output_items); +}; + +#endif /* INCLUDED_AUDIO_WINDOWS_SINK_H */ |