2010-01-31 00:24:23 +01:00
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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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2001-04-15 20:37:07 +02:00
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#include <string.h>
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2001-06-05 20:40:44 +02:00
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#include "config.h"
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2002-02-21 17:02:26 +01:00
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#include "libao2/audio_out.h"
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2004-06-26 11:14:20 +02:00
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#include "libaf/af.h"
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2012-03-19 22:55:15 +01:00
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#include "mp_msg.h"
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2004-06-26 11:14:20 +02:00
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#include "mixer.h"
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2001-04-15 20:37:07 +02:00
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2001-06-05 20:40:44 +02:00
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2011-12-26 01:41:35 +01:00
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char *mixer_device = NULL;
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char *mixer_channel = NULL;
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2004-11-14 12:27:58 +01:00
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int soft_vol = 0;
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float soft_vol_max = 110.0;
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2001-06-05 20:40:44 +02:00
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2012-01-17 07:54:11 +01:00
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static void internal_setvolume(mixer_t *mixer, float l, float r);
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2011-12-22 07:02:19 +01:00
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// Called after the audio filter chain is built or rebuilt.
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void mixer_reinit(mixer_t *mixer)
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{
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2012-01-06 16:23:43 +01:00
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if (!mixer->ao)
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return;
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2012-01-17 07:54:11 +01:00
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// Some of this might be incorrect when the AO behavior changes (e.g.
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// different AO due to file specific -ao options), but we assume this
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// doesn't happen. We could attempt to handle this by trying to detect
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// whether a system mixer or mute is supported, but it would probably add
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// even more bugs to the code.
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2012-01-06 16:23:43 +01:00
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if (mixer->restore_volume) {
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2012-01-17 07:54:11 +01:00
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// restore previous volume (softvol, or no persistent AO volume)
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internal_setvolume(mixer, mixer->restore_vol_l, mixer->restore_vol_r);
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2011-12-22 07:02:19 +01:00
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}
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2012-01-17 07:54:11 +01:00
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if (mixer->muted &&
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(mixer->mute_emulation || mixer->ao->no_persistent_volume))
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{
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// undo mixer_uninit(), or restore mute state
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mixer_setmuted(mixer, true);
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2012-01-07 14:10:05 +01:00
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}
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2012-01-06 16:23:43 +01:00
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if (mixer->restore_balance) {
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2012-01-17 07:54:11 +01:00
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// balance control always uses af_pan, it always needs to be restored
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2011-12-22 07:19:43 +01:00
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mixer_setbalance(mixer, mixer->balance);
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}
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2011-12-22 07:02:19 +01:00
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}
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2012-01-07 14:10:05 +01:00
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// Called before the audio output is uninitialized.
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// Note that this doesn't necessarily terminate the mixer_t instance, and it's
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// possible that mixer_reinit() will be called later.
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void mixer_uninit(mixer_t *mixer)
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{
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if (!mixer->ao)
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return;
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2012-01-17 07:54:11 +01:00
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// The player is supposed to restore the volume, when mute was enabled, and
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// the player terminates. No other attempts at restoring anything are done.
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2012-01-07 14:10:05 +01:00
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// One complication is that the mute state should survive audio
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// reinitialization (e.g. when switching to a new file), so we have to be
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// sure mixer_reinit() will restore the mute state.
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2012-01-17 07:54:11 +01:00
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// This is only needed when a global system mixer without mute control is
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// used, i.e. we emulate mute by setting the volume to 0.
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if (mixer->mute_emulation && mixer_getmuted(mixer)) {
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2012-01-07 14:10:05 +01:00
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// avoid playing the rest of the audio buffer at restored volume
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ao_reset(mixer->ao);
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mixer_setmuted(mixer, false);
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mixer->muted = true;
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}
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}
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2012-01-07 17:33:40 +01:00
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static void internal_getvolume(mixer_t *mixer, float *l, float *r)
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2001-06-05 20:40:44 +02:00
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{
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2011-12-26 01:41:35 +01:00
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ao_control_vol_t vol;
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*l = 0;
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*r = 0;
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if (mixer->ao) {
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if (soft_vol ||
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CONTROL_OK != ao_control(mixer->ao, AOCONTROL_GET_VOLUME, &vol))
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{
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if (!mixer->afilter)
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return;
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float db_vals[AF_NCH];
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if (!af_control_any_rev(mixer->afilter,
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AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_GET, db_vals))
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{
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db_vals[0] = db_vals[1] = 1.0;
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} else {
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af_from_dB(2, db_vals, db_vals, 20.0, -200.0, 60.0);
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}
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vol.left = (db_vals[0] / (soft_vol_max / 100.0)) * 100.0;
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vol.right = (db_vals[1] / (soft_vol_max / 100.0)) * 100.0;
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}
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*r = vol.right;
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*l = vol.left;
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2004-06-26 11:14:20 +02:00
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}
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2001-06-05 20:40:44 +02:00
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}
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2012-01-07 17:33:40 +01:00
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static float clip_vol(float v)
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{
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return v > 100 ? 100 : (v < 0 ? 0 : v);
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}
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2012-01-17 07:54:11 +01:00
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static void internal_setvolume(mixer_t *mixer, float l, float r)
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2001-06-05 20:40:44 +02:00
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{
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2012-01-07 17:33:40 +01:00
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l = clip_vol(l);
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r = clip_vol(r);
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2011-12-26 01:41:35 +01:00
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ao_control_vol_t vol;
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vol.right = r;
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vol.left = l;
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if (mixer->ao) {
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2012-01-06 16:23:43 +01:00
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bool use_softvol = soft_vol;
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if (!use_softvol) {
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if (CONTROL_OK != ao_control(mixer->ao, AOCONTROL_SET_VOLUME, &vol))
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{
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use_softvol = true;
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} else {
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mixer->restore_volume = mixer->ao->no_persistent_volume;
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}
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}
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if (use_softvol) {
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2011-12-26 01:41:35 +01:00
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if (!mixer->afilter)
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return;
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// af_volume uses values in dB
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float db_vals[AF_NCH];
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int i;
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db_vals[0] = (l / 100.0) * (soft_vol_max / 100.0);
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db_vals[1] = (r / 100.0) * (soft_vol_max / 100.0);
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for (i = 2; i < AF_NCH; i++)
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db_vals[i] = ((l + r) / 100.0) * (soft_vol_max / 100.0) / 2.0;
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af_to_dB(AF_NCH, db_vals, db_vals, 20.0);
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2004-07-28 14:17:50 +02:00
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if (!af_control_any_rev(mixer->afilter,
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2011-12-26 01:41:35 +01:00
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AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, db_vals))
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{
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mp_tmsg(MSGT_GLOBAL, MSGL_INFO,
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"[Mixer] No hardware mixing, inserting volume filter.\n");
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2012-01-06 16:23:43 +01:00
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if (!(af_add(mixer->afilter, "volume")
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&& af_control_any_rev(mixer->afilter,
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AF_CONTROL_VOLUME_LEVEL | AF_CONTROL_SET, db_vals)))
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{
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mp_tmsg(MSGT_GLOBAL, MSGL_ERR,
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"[Mixer] No volume control available.\n");
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return;
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2011-12-26 01:41:35 +01:00
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}
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2004-07-28 14:17:50 +02:00
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}
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2012-01-06 16:23:43 +01:00
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mixer->restore_volume = true;
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}
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if (mixer->restore_volume) {
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mixer->restore_vol_l = l;
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mixer->restore_vol_r = r;
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2011-12-26 01:41:35 +01:00
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}
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2004-06-26 11:14:20 +02:00
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}
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2012-01-17 07:54:11 +01:00
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}
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void mixer_setvolume(mixer_t *mixer, float l, float r)
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{
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internal_setvolume(mixer, l, r);
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// Changing the volume clears mute; these are mplayer semantics. (If this
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// is not desired, this would be removed, and code for restoring the softvol
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// volume had to be added.)
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mixer_setmuted(mixer, false);
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2001-06-05 20:40:44 +02:00
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}
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2001-06-09 01:36:58 +02:00
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2012-01-07 17:33:40 +01:00
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void mixer_getvolume(mixer_t *mixer, float *l, float *r)
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{
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*l = 0;
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*r = 0;
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if (mixer->ao) {
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2012-01-07 18:06:30 +01:00
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float real_l, real_r;
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internal_getvolume(mixer, &real_l, &real_r);
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// consider the case when the system mixer volumes change independently
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if (real_l != 0 || real_r != 0)
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mixer->muted = false;
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2012-01-07 17:33:40 +01:00
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if (mixer->muted) {
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*l = mixer->last_l;
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*r = mixer->last_r;
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} else {
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2012-01-07 18:06:30 +01:00
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*l = real_l;
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*r = real_r;
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2012-01-07 17:33:40 +01:00
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}
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}
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}
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static void mixer_addvolume(mixer_t *mixer, float d)
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2001-04-15 20:37:07 +02:00
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{
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2011-12-26 01:41:35 +01:00
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float mixer_l, mixer_r;
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mixer_getvolume(mixer, &mixer_l, &mixer_r);
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2012-01-07 17:33:40 +01:00
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mixer_setvolume(mixer, mixer_l + d, mixer_r + d);
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}
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void mixer_incvolume(mixer_t *mixer)
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{
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mixer_addvolume(mixer, +mixer->volstep);
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2001-04-15 20:37:07 +02:00
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}
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2004-06-26 11:14:20 +02:00
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void mixer_decvolume(mixer_t *mixer)
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2001-04-15 20:37:07 +02:00
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{
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2012-01-07 17:33:40 +01:00
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mixer_addvolume(mixer, -mixer->volstep);
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2001-04-15 20:37:07 +02:00
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}
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2004-06-26 11:14:20 +02:00
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void mixer_getbothvolume(mixer_t *mixer, float *b)
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2001-04-15 20:37:07 +02:00
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{
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2011-12-26 01:41:35 +01:00
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float mixer_l, mixer_r;
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mixer_getvolume(mixer, &mixer_l, &mixer_r);
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*b = (mixer_l + mixer_r) / 2;
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2001-04-15 20:37:07 +02:00
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}
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2002-02-21 17:02:26 +01:00
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2004-06-26 11:14:20 +02:00
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void mixer_mute(mixer_t *mixer)
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2002-06-06 09:13:57 +02:00
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{
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2012-01-07 18:06:30 +01:00
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mixer_setmuted(mixer, !mixer_getmuted(mixer));
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}
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bool mixer_getmuted(mixer_t *mixer)
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{
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2012-01-17 07:54:11 +01:00
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ao_control_vol_t vol = {0};
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if (!soft_vol &&
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CONTROL_OK == ao_control(mixer->ao, AOCONTROL_GET_MUTE, &vol))
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{
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mixer->muted = vol.left == 0.0f || vol.right == 0.0f;
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} else {
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float l, r;
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mixer_getvolume(mixer, &l, &r); // updates mixer->muted
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}
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2012-01-07 18:06:30 +01:00
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return mixer->muted;
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2012-01-07 14:10:05 +01:00
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}
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void mixer_setmuted(mixer_t *mixer, bool mute)
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{
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2012-01-07 18:06:30 +01:00
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bool muted = mixer_getmuted(mixer);
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if (mute == muted)
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2012-01-07 14:10:05 +01:00
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return;
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2012-01-17 07:54:11 +01:00
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ao_control_vol_t vol;
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vol.left = vol.right = mute ? 0.0f : 1.0f;
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mixer->mute_emulation = soft_vol ||
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CONTROL_OK != ao_control(mixer->ao, AOCONTROL_SET_MUTE, &vol);
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if (mixer->mute_emulation) {
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// mute is emulated by setting volume to 0
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if (!mute) {
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internal_setvolume(mixer, mixer->last_l, mixer->last_r);
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} else {
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mixer_getvolume(mixer, &mixer->last_l, &mixer->last_r);
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internal_setvolume(mixer, 0, 0);
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}
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2011-12-26 01:41:35 +01:00
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}
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2012-01-17 07:54:11 +01:00
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mixer->muted = mute;
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2002-06-06 09:13:57 +02:00
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}
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2007-06-20 04:26:20 +02:00
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void mixer_getbalance(mixer_t *mixer, float *val)
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{
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2011-12-26 01:41:35 +01:00
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*val = 0.f;
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if (!mixer->afilter)
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return;
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af_control_any_rev(mixer->afilter, AF_CONTROL_PAN_BALANCE | AF_CONTROL_GET,
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val);
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2007-06-20 04:26:20 +02:00
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}
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void mixer_setbalance(mixer_t *mixer, float val)
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{
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2011-12-26 01:41:35 +01:00
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float level[AF_NCH];
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int i;
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af_control_ext_t arg_ext = { .arg = level };
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af_instance_t *af_pan_balance;
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2007-06-20 04:26:20 +02:00
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2011-12-26 01:41:35 +01:00
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if (!mixer->afilter)
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return;
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2011-12-22 07:19:43 +01:00
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mixer->balance = val;
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2012-01-06 16:23:43 +01:00
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mixer->restore_balance = true;
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2011-12-22 07:19:43 +01:00
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2011-12-26 01:41:35 +01:00
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if (af_control_any_rev(mixer->afilter,
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AF_CONTROL_PAN_BALANCE | AF_CONTROL_SET, &val))
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return;
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if (!(af_pan_balance = af_add(mixer->afilter, "pan"))) {
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mp_tmsg(MSGT_GLOBAL, MSGL_ERR,
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"[Mixer] No balance control available.\n");
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2012-01-06 16:23:43 +01:00
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mixer->restore_balance = false;
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2011-12-26 01:41:35 +01:00
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return;
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}
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af_init(mixer->afilter);
|
|
|
|
/* make all other channels pass thru since by default pan blocks all */
|
|
|
|
memset(level, 0, sizeof(level));
|
|
|
|
for (i = 2; i < AF_NCH; i++) {
|
|
|
|
arg_ext.ch = i;
|
|
|
|
level[i] = 1.f;
|
|
|
|
af_pan_balance->control(af_pan_balance,
|
|
|
|
AF_CONTROL_PAN_LEVEL | AF_CONTROL_SET,
|
|
|
|
&arg_ext);
|
|
|
|
level[i] = 0.f;
|
|
|
|
}
|
|
|
|
|
|
|
|
af_pan_balance->control(af_pan_balance,
|
|
|
|
AF_CONTROL_PAN_BALANCE | AF_CONTROL_SET, &val);
|
2007-06-20 04:26:20 +02:00
|
|
|
}
|