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https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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flat-volume thingy
Signed-off-by: Lennart Poettering <lennart@poettering.net>
This commit is contained in:
Marc-Andre Lureau
Lennart Poettering
parent
45412740b8
commit
80a79b15df
2 changed files with 229 additions and 1 deletions
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@ -1032,6 +1032,7 @@ libavahi_wrap_la_LIBADD = $(AM_LIBADD) $(AVAHI_CFLAGS) libpulsecore.la
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###################################
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modlibexec_LTLIBRARIES += \
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module-flat-volume.la \
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module-cli.la \
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module-cli-protocol-tcp.la \
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module-simple-protocol-tcp.la \
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@ -1235,7 +1236,8 @@ SYMDEF_FILES = \
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modules/bluetooth/module-bluetooth-device-symdef.h \
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modules/gconf/module-gconf-symdef.h \
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modules/module-position-event-sounds-symdef.h \
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modules/module-console-kit-symdef.h
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modules/module-console-kit-symdef.h \
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modules/module-flat-volume-symdef.h
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EXTRA_DIST += $(SYMDEF_FILES)
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BUILT_SOURCES += $(SYMDEF_FILES)
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@ -1247,6 +1249,12 @@ $(SYMDEF_FILES): modules/module-defs.h.m4
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$(MKDIR_P) modules/bluetooth
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$(M4) -Dfname="$@" $< > $@
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# Flat volume
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module_flat_volume_la_SOURCES = modules/module-flat-volume.c
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module_flat_volume_la_LDFLAGS = -module -avoid-version
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module_flat_volume_la_LIBADD = $(AM_LIBADD) libpulsecore.la
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# Simple protocol
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module_simple_protocol_tcp_la_SOURCES = modules/module-protocol-stub.c
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220
src/modules/module-flat-volume.c
Normal file
220
src/modules/module-flat-volume.c
Normal file
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@ -0,0 +1,220 @@
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/* $Id$ */
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/***
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This file is part of PulseAudio.
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Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
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Copyright 2004-2006, 2008 Lennart Poettering
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Contact: Marc-Andre Lureau <marc-andre.lureau@nokia.com>
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/core-error.h>
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#include <pulsecore/module.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/log.h>
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#include <pulsecore/sink-input.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/macro.h>
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#include "module-flat-volume-symdef.h"
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PA_MODULE_AUTHOR("Marc-Andre Lureau");
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PA_MODULE_DESCRIPTION("Flat volume");
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PA_MODULE_VERSION(PACKAGE_VERSION);
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PA_MODULE_LOAD_ONCE(TRUE);
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PA_MODULE_USAGE("");
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struct userdata {
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pa_subscription *subscription;
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pa_hook_slot *sink_input_set_volume_hook_slot;
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pa_hook_slot *sink_input_fixate_hook_slot;
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};
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static void process_input_volume_change(pa_cvolume *dest_volume, const pa_cvolume *dest_virtual_volume, pa_channel_map *dest_channel_map,
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pa_sink_input *this, pa_sink *sink) {
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pa_sink_input *i;
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uint32_t idx;
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pa_cvolume max_volume, sink_volume;
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pa_assert(dest_volume);
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pa_assert(dest_virtual_volume);
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pa_assert(dest_channel_map);
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pa_assert(sink);
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pa_log_debug("Sink input volume changed");
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max_volume = *dest_virtual_volume;
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pa_cvolume_remap(&max_volume, dest_channel_map, &sink->channel_map);
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for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &idx))) {
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/* skip this sink-input if we are processing a volume change request */
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if (this && this == i)
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continue;
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if (pa_cvolume_avg(&i->virtual_volume) > pa_cvolume_avg(&max_volume)) {
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max_volume = i->virtual_volume;
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pa_cvolume_remap(&max_volume, &i->channel_map, &sink->channel_map);
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}
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}
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/* Set the master volume, and normalize inputs */
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if (!pa_cvolume_equal(&max_volume, &sink->volume)) {
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/* copied from pa_sink_set_volume(): need to call from here to avoid sink hooks */
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/* alternatively, could create an extra function pa_sink_set_volume_full()? */
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sink->volume = max_volume;
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if (sink->set_volume && sink->set_volume(sink) < 0)
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sink->set_volume = NULL;
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if (!sink->set_volume)
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pa_sink_set_soft_volume(sink, &max_volume);
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pa_subscription_post(sink->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, sink->index);
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pa_log_debug("sink = %.2f (changed)", (double)pa_cvolume_avg(&sink->volume)/PA_VOLUME_NORM);
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/* Now, normalize each of the internal volume (client sink-input volume / sink master volume) */
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for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &idx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &idx))) {
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/* skip this sink-input if we are processing a volume change request */
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if (this && this == i)
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continue;
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sink_volume = max_volume;
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pa_cvolume_remap(&sink_volume, &sink->channel_map, &i->channel_map);
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pa_sw_cvolume_divide(&i->volume, &i->virtual_volume, &sink_volume);
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pa_log_debug("sink input { id = %d, flat = %.2f, true = %.2f }",
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i->index,
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(double)pa_cvolume_avg(&i->virtual_volume)/PA_VOLUME_NORM,
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(double)pa_cvolume_avg(&i->volume)/PA_VOLUME_NORM);
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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);
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}
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} else
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pa_log_debug("sink = %.2f", (double)pa_cvolume_avg(&sink->volume)/PA_VOLUME_NORM);
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/* and this one */
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{
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sink_volume = max_volume;
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pa_cvolume_remap(&sink_volume, &sink->channel_map, dest_channel_map);
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pa_sw_cvolume_divide(dest_volume, dest_virtual_volume, &sink_volume);
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pa_log_debug("caller sink input: { id = %d, flat = %.2f, true = %.2f }",
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this ? (int)this->index : -1,
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(double)pa_cvolume_avg(dest_virtual_volume)/PA_VOLUME_NORM,
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(double)pa_cvolume_avg(dest_volume)/PA_VOLUME_NORM);
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}
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}
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static pa_hook_result_t sink_input_set_volume_hook_callback(pa_core *c, pa_sink_input_set_volume_data *this, struct userdata *u) {
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pa_assert(this);
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pa_assert(this->sink_input);
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process_input_volume_change(&this->volume, &this->virtual_volume, &this->sink_input->channel_map,
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this->sink_input, this->sink_input->sink);
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return PA_HOOK_OK;
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}
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static pa_hook_result_t sink_input_fixate_hook_callback(pa_core *core, pa_sink_input_new_data *this, struct userdata *u) {
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pa_assert(this);
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pa_assert(this->sink);
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process_input_volume_change(&this->volume, &this->virtual_volume, &this->channel_map,
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NULL, this->sink);
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return PA_HOOK_OK;
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}
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static void subscribe_callback(pa_core *core, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
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struct userdata *u = userdata;
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pa_sink *sink;
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pa_sink_input *i;
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uint32_t iidx;
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pa_cvolume this_volume;
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pa_assert(core);
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pa_assert(u);
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if (t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW) &&
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t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE))
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return;
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if (!(sink = pa_idxset_get_by_index(core->sinks, idx)))
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return;
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pa_log_debug("Sink volume changed");
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pa_log_debug("sink = %.2f", (double)pa_cvolume_avg(pa_sink_get_volume(sink, FALSE)) / PA_VOLUME_NORM);
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for (i = PA_SINK_INPUT(pa_idxset_first(sink->inputs, &iidx)); i; i = PA_SINK_INPUT(pa_idxset_next(sink->inputs, &iidx))) {
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this_volume = *pa_sink_get_volume(sink, FALSE);
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pa_cvolume_remap(&this_volume, &sink->channel_map, &i->channel_map);
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pa_sw_cvolume_multiply(&i->virtual_volume, &i->volume, &this_volume);
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pa_log_debug("sink input = { id = %d, flat = %.2f, true = %.2f }",
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i->index,
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(double)pa_cvolume_avg(&i->virtual_volume)/PA_VOLUME_NORM,
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(double)pa_cvolume_avg(&i->volume)/PA_VOLUME_NORM);
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pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
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}
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}
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int pa__init(pa_module*m) {
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struct userdata *u;
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pa_assert(m);
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u = pa_xnew(struct userdata, 1);
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m->userdata = u;
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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);
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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);
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u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK, subscribe_callback, u);
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return 0;
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}
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void pa__done(pa_module*m) {
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struct userdata* u;
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pa_assert(m);
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if (!(u = m->userdata))
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return;
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if (u->subscription)
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pa_subscription_free(u->subscription);
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if (u->sink_input_set_volume_hook_slot)
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pa_hook_slot_free(u->sink_input_set_volume_hook_slot);
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if (u->sink_input_fixate_hook_slot)
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pa_hook_slot_free(u->sink_input_fixate_hook_slot);
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pa_xfree(u);
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}
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