2010-01-30 23:24:23 +00:00
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/*
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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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2007-07-31 07:04:07 +00:00
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#ifndef MPLAYER_MIXER_H
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#define MPLAYER_MIXER_H
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2001-04-15 18:37:07 +00:00
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2012-01-21 07:28:07 +00:00
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#include <stdbool.h>
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2013-09-19 12:32:09 +00:00
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// Values of MPOpts.softvol
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softvol, ao_pulse: prefer ao_pulse volume control by default
--softvol is enabled by default. For most audio outputs, this is a good
thing, as they have either their own (bad) soft volume implementation,
or control the system mixer. With ao_pulse, the situation is a bit
different: it supports per-application volume (i.e. volume control is
not really global). More importantly, ao_pulse uses a rather large audio
buffer, and changing the volume with mplayer's volume filter has a large
delay. With the native ao_pulse volume control, it's instant, because
PulseAudio's audio filtering happens at a later stage in its processing
pipeline (inaccessible for mplayer).
This means native volume control should really be allowed for ao_pulse,
while it's the reverse for other audio outputs. Make --softvol a choice
option, and add a new "auto" choice. This is default and will use PA's
volume control with ao_pulse, and mplayer's volume filter otherwise
(i.e. the old softvol behavior).
2012-09-18 19:41:22 +00:00
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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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2013-09-19 12:33:26 +00:00
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struct MPOpts;
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struct ao;
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struct af_stream;
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struct mixer;
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2004-06-26 09:14:20 +00:00
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2013-09-19 12:33:26 +00:00
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struct mixer *mixer_init(void *talloc_ctx, struct MPOpts *opts);
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2013-09-19 12:31:43 +00:00
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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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2013-09-19 12:33:26 +00:00
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void mixer_getvolume(struct mixer *mixer, float *l, float *r);
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void mixer_setvolume(struct mixer *mixer, float l, float r);
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void mixer_incvolume(struct mixer *mixer);
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void mixer_decvolume(struct mixer *mixer);
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void mixer_getbothvolume(struct mixer *mixer, float *b);
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void mixer_setmute(struct mixer *mixer, bool mute);
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bool mixer_getmute(struct mixer *mixer);
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void mixer_getbalance(struct mixer *mixer, float *bal);
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void mixer_setbalance(struct mixer *mixer, float bal);
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2013-09-19 12:32:47 +00:00
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char *mixer_get_volume_restore_data(struct mixer *mixer);
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2001-04-15 18:37:07 +00:00
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2007-07-31 07:04:07 +00:00
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#endif /* MPLAYER_MIXER_H */
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