diff options
Diffstat (limited to '')
| -rw-r--r-- | src/mixer_control.c | 77 | ||||
| -rw-r--r-- | src/mixer_control.h | 30 |
2 files changed, 107 insertions, 0 deletions
diff --git a/src/mixer_control.c b/src/mixer_control.c new file mode 100644 index 000000000..782fbcd6a --- /dev/null +++ b/src/mixer_control.c @@ -0,0 +1,77 @@ +/* + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "mixer_control.h" +#include "mixer_api.h" +#include "output_all.h" +#include "output_plugin.h" +#include "output_internal.h" + +bool +mixer_control_setvol(unsigned int device, int volume, int rel) +{ + struct audio_output *output; + struct mixer *mixer; + + if (device >= audio_output_count()) + return false; + + output = audio_output_get(device); + 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; + + if (device >= audio_output_count()) + return false; + + output = audio_output_get(device); + 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; +} diff --git a/src/mixer_control.h b/src/mixer_control.h new file mode 100644 index 000000000..aa1c6caae --- /dev/null +++ b/src/mixer_control.h @@ -0,0 +1,30 @@ +/* + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef MPD_MIXER_CONTROL_H +#define MPD_MIXER_CONTROL_H + +#include <stdbool.h> + +bool +mixer_control_setvol(unsigned int device, int volume, int rel); + +bool +mixer_control_getvol(unsigned int device, int *volume); + +#endif |