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Update the mixer class to support setting the name of the soundcard we want to get the mixer of

This commit is contained in:
Alexander Polynomdivision 2017-01-14 17:18:17 +01:00 committed by Michael Carlberg
parent 497221b1ab
commit 22e255747a
2 changed files with 12 additions and 3 deletions
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4
include/adapters/alsa/mixer.hpp
View File

@ -18,13 +18,14 @@ POLYBAR_NS
namespace alsa {
class mixer {
public:
explicit mixer(string&& mixer_selem_name);
explicit mixer(string&& mixer_selem_name, string&& sound_card_name);
~mixer();
mixer(const mixer& o) = delete;
mixer& operator=(const mixer& o) = delete;
const string& get_name();
const string& get_sound_card();
bool wait(int timeout = -1);
int process_events();
@ -42,6 +43,7 @@ namespace alsa {
snd_mixer_elem_t* m_elem{nullptr};
string m_name;
string s_name;
};
}

11
src/adapters/alsa/mixer.cpp
View File

@ -12,7 +12,7 @@ namespace alsa {
/**
* Construct mixer object
*/
mixer::mixer(string&& mixer_selem_name) : m_name(forward<string>(mixer_selem_name)) {
mixer::mixer(string&& mixer_selem_name, string&& soundcard_name) : m_name(forward<string>(mixer_selem_name)), s_name(soundcard_name) {
int err = 0;
if ((err = snd_mixer_open(&m_mixer, 1)) == -1) {
@ -21,7 +21,7 @@ namespace alsa {
snd_config_update_free_global();
if ((err = snd_mixer_attach(m_mixer, ALSA_SOUNDCARD)) == -1) {
if ((err = snd_mixer_attach(m_mixer, s_name.c_str())) == -1) {
throw_exception<mixer_error>("Failed to attach hardware mixer control", err);
}
if ((err = snd_mixer_selem_register(m_mixer, nullptr, nullptr)) == -1) {
@ -57,6 +57,13 @@ namespace alsa {
return m_name;
}
/**
* Get the name of the soundcard that is associated with the mixer
*/
const string& mixer::get_sound_card() {
return s_name;
}
/**
* Wait for events
*/