78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
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/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "mixer_control.h"
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#include "mixer_api.h"
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#include "output_all.h"
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#include "output_plugin.h"
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#include "output_internal.h"
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bool
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mixer_control_setvol(unsigned int device, int volume, int rel)
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{
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struct audio_output *output;
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struct mixer *mixer;
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if (device >= audio_output_count())
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return false;
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output = audio_output_get(device);
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mixer = ao_plugin_get_mixer(output->plugin, output->data);
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if (mixer != NULL) {
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if (rel) {
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int cur_volume = mixer_get_volume(mixer);
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if (cur_volume < 0)
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return false;
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volume = volume + cur_volume;
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}
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if (volume > 100)
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volume = 100;
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else if (volume < 0)
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volume = 0;
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return mixer_set_volume(mixer, volume);
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}
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return false;
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}
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bool
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mixer_control_getvol(unsigned int device, int *volume)
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{
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struct audio_output *output;
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struct mixer *mixer;
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if (device >= audio_output_count())
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return false;
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output = audio_output_get(device);
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mixer = ao_plugin_get_mixer(output->plugin, output->data);
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if (mixer != NULL) {
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int volume2;
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volume2 = mixer_get_volume(mixer);
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if (volume2 < 0)
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return false;
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*volume = volume2;
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return true;
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}
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return false;
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}
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