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fix(pulseaudio): Use inc_volume() instead of set_volume()

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This commit is contained in:
NBonaparte 2017-09-16 14:49:46 -07:00
parent 318a6d83cf
commit 23ee9afb6f
3 changed files with 26 additions and 16 deletions
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1
include/adapters/pulseaudio.hpp
View File

@ -38,6 +38,7 @@ class pulseaudio {
int get_volume();
void set_volume(float percentage);
void inc_volume(int delta_perc);
void set_mute(bool mode);
void toggle_mute();
bool is_muted();

37
src/adapters/pulseaudio.cpp
View File

@ -48,7 +48,11 @@ pulseaudio::pulseaudio(string&& sink_name) : spec_s_name(sink_name) {
pa_threaded_mainloop_wait(m_mainloop);
if (pa_context_get_state(m_context) != PA_CONTEXT_READY) {
//goto error;
pa_threaded_mainloop_unlock(m_mainloop);
pa_threaded_mainloop_stop(m_mainloop);
pa_context_disconnect(m_context);
pa_context_unref(m_context);
pa_threaded_mainloop_free(m_mainloop);
throw pulseaudio_error("Could not connect to pulseaudio server.");
}
@ -68,8 +72,7 @@ pulseaudio::pulseaudio(string&& sink_name) : spec_s_name(sink_name) {
wait_loop(op, m_mainloop);
}
op = pa_context_subscribe(m_context, static_cast<pa_subscription_mask_t>(PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SERVER),
simple_callback, this);
op = pa_context_subscribe(m_context, PA_SUBSCRIPTION_MASK_SINK, simple_callback, this);
wait_loop(op, m_mainloop);
pa_context_set_subscribe_callback(m_context, subscribe_callback, this);
@ -149,14 +152,12 @@ int pulseaudio::get_volume() {
wait_loop(op, m_mainloop);
pa_threaded_mainloop_unlock(m_mainloop);
// alternatively, user pa_cvolume_avg_mask() to average selected channels
//return math_util::percentage(pa_cvolume_avg(&cv), PA_VOLUME_MUTED, PA_VOLUME_NORM);
return math_util::percentage(pa_cvolume_max(&cv), PA_VOLUME_MUTED, PA_VOLUME_NORM);
}
/**
* Set volume to given percentage
*/
//void pulseaudio::set_volume(int delta_perc) {
void pulseaudio::set_volume(float percentage) {
pa_threaded_mainloop_lock(m_mainloop);
pa_operation *op = pa_context_get_sink_info_by_name(m_context, s_name.c_str(), get_sink_volume_callback, this);
@ -168,6 +169,23 @@ void pulseaudio::set_volume(float percentage) {
pa_threaded_mainloop_unlock(m_mainloop);
}
/**
* Increment or decrement volume by given percentage (prevents accumulation of rounding errors from get_volume)
*/
void pulseaudio::inc_volume(int delta_perc) {
pa_threaded_mainloop_lock(m_mainloop);
pa_operation *op = pa_context_get_sink_info_by_name(m_context, s_name.c_str(), get_sink_volume_callback, this);
wait_loop(op, m_mainloop);
pa_volume_t vol = math_util::percentage_to_value<pa_volume_t>(abs(delta_perc), PA_VOLUME_MUTED, PA_VOLUME_NORM);
if (delta_perc > 0)
pa_cvolume_inc(&cv, vol);
else
pa_cvolume_dec(&cv, vol);
op = pa_context_set_sink_volume_by_name(m_context, s_name.c_str(), &cv, simple_callback, this);
wait_loop(op, m_mainloop);
pa_threaded_mainloop_unlock(m_mainloop);
}
/**
* Set mute state
*/
@ -258,15 +276,6 @@ void pulseaudio::subscribe_callback(pa_context* context, pa_subscription_event_t
break;
}
break;
/*
case PA_SUBSCRIPTION_EVENT_SERVER:
switch(t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) {
case PA_SUBSCRIPTION_EVENT_CHANGE:
// default sink changed but no one cares
break;
}
break;
*/
}
pa_threaded_mainloop_signal(This->m_mainloop, 0);
}

4
src/modules/volume.cpp
View File

@ -314,9 +314,9 @@ namespace modules {
m_pulseaudio->toggle_mute();
} else if (cmd.compare(0, strlen(EVENT_VOLUME_UP), EVENT_VOLUME_UP) == 0) {
// cap above 100 (~150)?
m_pulseaudio->set_volume(math_util::cap<float>(m_pulseaudio->get_volume() + 5, 0, 100));
m_pulseaudio->inc_volume(5);
} else if (cmd.compare(0, strlen(EVENT_VOLUME_DOWN), EVENT_VOLUME_DOWN) == 0) {
m_pulseaudio->set_volume(math_util::cap<float>(m_pulseaudio->get_volume() - 5, 0, 100));
m_pulseaudio->inc_volume(-5);
} else {
return false;
}