mirror of
https://github.com/mpv-player/mpv
synced 2024-11-18 21:16:10 +01:00
b8e42ae13c
Note that this is intentionally never done if the AO or softvolume is different, or if the current volume control method is thought to control system wide volume (such as ALSA) or otherwise user controllable (such as PulseAudio). The intention is to keep things robust and to avoid messing with the user's audio settings as far as possible, while still providing the ability to resume volume if it makes sense.
65 lines
2.3 KiB
C
65 lines
2.3 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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// Values of MPOpts.softvol
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enum {
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SOFTVOL_NO = 0,
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SOFTVOL_YES = 1,
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SOFTVOL_AUTO = 2,
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};
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typedef struct mixer {
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struct MPOpts *opts;
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struct ao *ao;
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struct af_stream *af;
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// Static, dependent on ao/softvol settings
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bool softvol; // use AO (true) or af_volume (false)
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bool emulate_mute; // if true, emulate mute with volume=0
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// Last known values (possibly out of sync with reality)
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float vol_l, vol_r;
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bool muted;
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// Used to decide whether we should unmute on uninit
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bool muted_by_us;
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/* Contains ao driver name or "softvol" if volume is not persistent
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* and needs to be restored after the driver is reinitialized. */
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const char *driver;
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// Other stuff
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float balance;
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} mixer_t;
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void mixer_init(struct mixer *mixer, struct MPOpts *opts);
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void mixer_reinit_audio(struct mixer *mixer, struct ao *ao, struct af_stream *af);
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void mixer_uninit_audio(struct mixer *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_setmute(mixer_t *mixer, bool mute);
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bool mixer_getmute(mixer_t *mixer);
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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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char *mixer_get_volume_restore_data(struct mixer *mixer);
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#endif /* MPLAYER_MIXER_H */
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