2 This file is part of PulseAudio.
4 Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
5 Copyright 2004-2006, 2008 Lennart Poettering
7 Contact: Marc-Andre Lureau <marc-andre.lureau@nokia.com>
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
32 #include <sys/types.h>
37 #include <pulse/xmalloc.h>
39 #include <pulsecore/core-error.h>
40 #include <pulsecore/module.h>
41 #include <pulsecore/core-util.h>
42 #include <pulsecore/log.h>
43 #include <pulsecore/sink-input.h>
44 #include <pulsecore/core-util.h>
45 #include <pulsecore/macro.h>
47 #include "module-flat-volume-symdef.h"
49 PA_MODULE_AUTHOR("Marc-Andre Lureau");
50 PA_MODULE_DESCRIPTION("Flat volume");
51 PA_MODULE_VERSION(PACKAGE_VERSION);
52 PA_MODULE_LOAD_ONCE(TRUE);
56 pa_subscription *subscription;
57 pa_hook_slot *sink_input_set_volume_hook_slot;
58 pa_hook_slot *sink_input_fixate_hook_slot;
61 static void process_input_volume_change(
62 pa_cvolume *dest_volume,
63 const pa_cvolume *dest_virtual_volume,
64 pa_channel_map *dest_channel_map,
70 pa_cvolume max_volume, sink_volume;
72 pa_assert(dest_volume);
73 pa_assert(dest_virtual_volume);
74 pa_assert(dest_channel_map);
77 if (!(sink->flags & PA_SINK_DECIBEL_VOLUME))
80 pa_log_debug("Sink input volume changed");
82 max_volume = *dest_virtual_volume;
83 pa_cvolume_remap(&max_volume, dest_channel_map, &sink->channel_map);
85 for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &idx))) {
86 /* skip this sink-input if we are processing a volume change request */
87 if (this && this == i)
90 if (pa_cvolume_avg(&i->virtual_volume) > pa_cvolume_avg(&max_volume)) {
91 max_volume = i->virtual_volume;
92 pa_cvolume_remap(&max_volume, &i->channel_map, &sink->channel_map);
96 /* Set the master volume, and normalize inputs */
97 if (!pa_cvolume_equal(&max_volume, &sink->volume)) {
98 /* copied from pa_sink_set_volume(): need to call from here to avoid sink hooks */
99 /* alternatively, could create an extra function pa_sink_set_volume_full()? */
100 sink->volume = max_volume;
101 if (sink->set_volume && sink->set_volume(sink) < 0)
102 sink->set_volume = NULL;
104 if (!sink->set_volume)
105 pa_sink_set_soft_volume(sink, &max_volume);
107 pa_subscription_post(sink->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, sink->index);
109 pa_log_debug("sink = %.2f (changed)", (double)pa_cvolume_avg(&sink->volume)/PA_VOLUME_NORM);
111 /* Now, normalize each of the internal volume (client sink-input volume / sink master volume) */
112 for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &idx))) {
113 /* skip this sink-input if we are processing a volume change request */
114 if (this && this == i)
117 sink_volume = max_volume;
118 pa_cvolume_remap(&sink_volume, &sink->channel_map, &i->channel_map);
119 pa_sw_cvolume_divide(&i->volume, &i->virtual_volume, &sink_volume);
120 pa_log_debug("sink input { id = %d, flat = %.2f, true = %.2f }",
122 (double)pa_cvolume_avg(&i->virtual_volume)/PA_VOLUME_NORM,
123 (double)pa_cvolume_avg(&i->volume)/PA_VOLUME_NORM);
124 pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_VOLUME, pa_xnewdup(struct pa_cvolume, &i->volume, 1), 0, NULL, pa_xfree);
127 pa_log_debug("sink = %.2f", (double)pa_cvolume_avg(&sink->volume)/PA_VOLUME_NORM);
131 sink_volume = max_volume;
132 pa_cvolume_remap(&sink_volume, &sink->channel_map, dest_channel_map);
133 pa_sw_cvolume_divide(dest_volume, dest_virtual_volume, &sink_volume);
134 pa_log_debug("caller sink input: { id = %d, flat = %.2f, true = %.2f }",
135 this ? (int)this->index : -1,
136 (double)pa_cvolume_avg(dest_virtual_volume)/PA_VOLUME_NORM,
137 (double)pa_cvolume_avg(dest_volume)/PA_VOLUME_NORM);
140 static pa_hook_result_t sink_input_set_volume_hook_callback(pa_core *c, pa_sink_input_set_volume_data *this, struct userdata *u) {
142 pa_assert(this->sink_input);
144 process_input_volume_change(&this->volume, &this->virtual_volume, &this->sink_input->channel_map,
145 this->sink_input, this->sink_input->sink);
150 static pa_hook_result_t sink_input_fixate_hook_callback(pa_core *core, pa_sink_input_new_data *this, struct userdata *u) {
152 pa_assert(this->sink);
154 process_input_volume_change(&this->volume, &this->virtual_volume, &this->channel_map,
160 static void subscribe_callback(pa_core *core, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
161 struct userdata *u = userdata;
165 pa_cvolume this_volume;
170 if (t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW) &&
171 t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE))
174 if (!(sink = pa_idxset_get_by_index(core->sinks, idx)))
177 if (!(sink->flags & PA_SINK_DECIBEL_VOLUME))
180 pa_log_debug("Sink volume changed");
181 pa_log_debug("sink = %.2f", (double)pa_cvolume_avg(pa_sink_get_volume(sink, FALSE)) / PA_VOLUME_NORM);
183 for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &iidx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &iidx))) {
184 this_volume = *pa_sink_get_volume(sink, FALSE);
185 pa_cvolume_remap(&this_volume, &sink->channel_map, &i->channel_map);
186 pa_sw_cvolume_multiply(&i->virtual_volume, &i->volume, &this_volume);
187 pa_log_debug("sink input = { id = %d, flat = %.2f, true = %.2f }",
189 (double)pa_cvolume_avg(&i->virtual_volume)/PA_VOLUME_NORM,
190 (double)pa_cvolume_avg(&i->volume)/PA_VOLUME_NORM);
191 pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
195 int pa__init(pa_module*m) {
200 u = pa_xnew(struct userdata, 1);
203 u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
204 u->sink_input_set_volume_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_set_volume_hook_callback, u);
206 u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK, subscribe_callback, u);
211 void pa__done(pa_module*m) {
216 if (!(u = m->userdata))
220 pa_subscription_free(u->subscription);
222 if (u->sink_input_set_volume_hook_slot)
223 pa_hook_slot_free(u->sink_input_set_volume_hook_slot);
224 if (u->sink_input_fixate_hook_slot)
225 pa_hook_slot_free(u->sink_input_fixate_hook_slot);