77 lines
1.5 KiB
C++
77 lines
1.5 KiB
C++
|
#ifndef _INTERFACES_ALSA_HPP_
|
||
|
|
#define _INTERFACES_ALSA_HPP_
|
||
|
|
|
||
|
|
#include <functional>
|
||
|
|
#include <string>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <alsa/asoundlib.h>
|
||
|
|
#include <mutex>
|
||
|
|
|
||
|
|
#include "exception.hpp"
|
||
|
|
|
||
|
|
#define STRSNDERR(s) std::string(snd_strerror(s))
|
||
|
|
|
||
|
|
namespace alsa
|
||
|
|
{
|
||
|
|
class Exception : public ::Exception
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
Exception(const std::string& msg) : ::Exception("[Alsa] "+ msg){}
|
||
|
|
};
|
||
|
|
|
||
|
|
class ControlInterfaceError : public Exception {
|
||
|
|
using Exception::Exception;
|
||
|
|
};
|
||
|
|
|
||
|
|
class ControlInterface
|
||
|
|
{
|
||
|
|
std::mutex mtx;
|
||
|
|
|
||
|
|
snd_hctl_t *hctl;
|
||
|
|
snd_hctl_elem_t *elem;
|
||
|
|
|
||
|
|
snd_ctl_t *ctl;
|
||
|
|
snd_ctl_elem_info_t *info;
|
||
|
|
snd_ctl_elem_value_t *value;
|
||
|
|
snd_ctl_elem_id_t *id;
|
||
|
|
|
||
|
|
public:
|
||
|
|
ControlInterface(int numid) throw(ControlInterfaceError);
|
||
|
|
~ControlInterface();
|
||
|
|
|
||
|
|
bool wait(int timeout = -1) throw(ControlInterfaceError);
|
||
|
|
|
||
|
|
bool test_device_plugged() throw(ControlInterfaceError);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
class MixerError : public Exception {
|
||
|
|
using Exception::Exception;
|
||
|
|
};
|
||
|
|
|
||
|
|
class Mixer
|
||
|
|
{
|
||
|
|
std::mutex mtx;
|
||
|
|
|
||
|
|
snd_mixer_t *hardware_mixer = nullptr;
|
||
|
|
snd_mixer_elem_t *mixer_element = nullptr;
|
||
|
|
|
||
|
|
public:
|
||
|
|
Mixer(const std::string& mixer_control_name) throw(MixerError);
|
||
|
|
~Mixer();
|
||
|
|
|
||
|
|
bool wait(int timeout = -1) throw(MixerError);
|
||
|
|
|
||
|
|
int get_volume();
|
||
|
|
void set_volume(float percentage);
|
||
|
|
void set_mute(bool mode);
|
||
|
|
void toggle_mute();
|
||
|
|
bool is_muted();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
void error_handler(const std::string& message);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|