/* * Copyright 2003-2017 The Music Player Daemon Project * http://www.musicpd.org * * This program 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 2 of the License, or * (at your option) any later version. * * This program 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 this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef MPD_SNDIO_OUTPUT_PLUGIN_HXX #define MPD_SNDIO_OUTPUT_PLUGIN_HXX #include "../OutputAPI.hxx" class Mixer; class MixerListener; extern const struct AudioOutputPlugin sndio_output_plugin; class SndioOutput final : AudioOutput { Mixer *mixer = nullptr; MixerListener *listener = nullptr; const char *const device; const unsigned buffer_time; /* in ms */ struct sio_hdl *hdl; int raw_volume; public: SndioOutput(const ConfigBlock &block); static AudioOutput *Create(EventLoop &, const ConfigBlock &block); void SetVolume(unsigned int _volume); unsigned int GetVolume(); void VolumeChanged(int _volume); void RegisterMixerListener(Mixer *_mixer, MixerListener *_listener); private: void Open(AudioFormat &audio_format) override; void Close() noexcept override; size_t Play(const void *chunk, size_t size) override; }; #endif