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https://github.com/mpv-player/mpv
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06b1de2687
The mixer frontend code can now make use of a proper system mixer mute toggle, if the audio output driver supports it. The consequence is that, if support is available, mplayer will no longer temporarily set the system volume to 0 if mute is enabled. Generally, the code now deals with the following combinations of available AO features: - software volume control forced by user (--softvol / soft_vol flag) => if enabled, never touch the "hardware" controls - "hardware"/driver volume control available (whether AOCONTROL_GET/SET_VOLUME works) => if not available, enable volume controls by enabling softvol - "hardware"/driver mute control (AOCONTROL_GET/SET_MUTE) => if not available, emulate by setting volume to 0 - whether the volume+mute controls are kept or not when the AO is closed (indicated by ao->no_persistent_volume) => if not persistent, restore the volume/mute next time the AO is opened
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer 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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* MPlayer 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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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_MIXER_H
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#define MPLAYER_MIXER_H
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#include <stdbool.h>
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#include "libaf/af.h"
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#include "libao2/audio_out.h"
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extern char * mixer_device;
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extern char * mixer_channel;
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extern int soft_vol;
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extern float soft_vol_max;
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typedef struct mixer_s {
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struct ao *ao;
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af_stream_t *afilter;
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int volstep;
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bool muted;
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bool mute_emulation;
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float last_l, last_r;
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float restore_vol_l, restore_vol_r;
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bool restore_volume;
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float balance;
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bool restore_balance;
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} mixer_t;
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void mixer_reinit(mixer_t *mixer);
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void mixer_uninit(mixer_t *mixer);
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void mixer_getvolume(mixer_t *mixer, float *l, float *r);
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void mixer_setvolume(mixer_t *mixer, float l, float r);
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void mixer_incvolume(mixer_t *mixer);
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void mixer_decvolume(mixer_t *mixer);
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void mixer_getbothvolume(mixer_t *mixer, float *b);
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void mixer_mute(mixer_t *mixer);
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bool mixer_getmuted(mixer_t *mixer);
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void mixer_setmuted(mixer_t *mixer, bool mute);
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void mixer_getbalance(mixer_t *mixer, float *bal);
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void mixer_setbalance(mixer_t *mixer, float bal);
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#endif /* MPLAYER_MIXER_H */
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