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38b2c97fd6
Refactor how mixer.c does volume/mute restoration and initialization. Move to handling of --volume and --mute to mixer.c. Simplify the implementation of these and hopefully fix bugs/strange behavior related to using them as file-local options (this uses a somewhat dirty trick: the option values are reverted to "auto" after initialization). Put most code related to initialization and volume restoring in probe_softvol() and restore_volume(). Having this code all in one place is less confusing. Instead of trying to detect whether to use softvol at runtime, detect it at initialization time using AOCONTROL_GET_VOLUME (same with mute, AOCONTROL_GET_MUTE). This implies we expect SET_VOLUME/SET_MUTE to work if the GET variants work. Hopefully this is always the case. This is also preparation for being able to change volume/mute settings if audio is disabled, and for allowing restoring value with playback resume.
64 lines
2.2 KiB
C
64 lines
2.2 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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#endif /* MPLAYER_MIXER_H */
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