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/*
* Copyright (C) 2003-2009 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.
*/
#include "mixer_control.h"
#include "mixer_api.h"
#include "output_all.h"
#include "output_plugin.h"
#include "output_internal.h"
#include <assert.h>
bool
mixer_control_setvol(unsigned int device, int volume, int rel)
{
struct audio_output *output;
struct mixer *mixer;
assert(device < audio_output_count());
output = audio_output_get(device);
if (!output->enabled)
return false;
mixer = ao_plugin_get_mixer(output->plugin, output->data);
if (mixer != NULL) {
if (rel) {
int cur_volume = mixer_get_volume(mixer);
if (cur_volume < 0)
return false;
volume = volume + cur_volume;
}
if (volume > 100)
volume = 100;
else if (volume < 0)
volume = 0;
return mixer_set_volume(mixer, volume);
}
return false;
}
bool
mixer_control_getvol(unsigned int device, int *volume)
{
struct audio_output *output;
struct mixer *mixer;
assert(device < audio_output_count());
output = audio_output_get(device);
if (!output->enabled)
return false;
mixer = ao_plugin_get_mixer(output->plugin, output->data);
if (mixer != NULL) {
int volume2;
volume2 = mixer_get_volume(mixer);
if (volume2 < 0)
return false;
*volume = volume2;
return true;
}
return false;
}
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