94 lines
1.8 KiB
C++
94 lines
1.8 KiB
C++
#pragma once
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#include <functional>
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#include <string>
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#include <stdio.h>
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#include <alsa/asoundlib.h>
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#include <mutex>
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#include "exception.hpp"
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#include "utils/concurrency.hpp"
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#include "utils/macros.hpp"
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#define StrSndErr(s) ToStr(snd_strerror(s))
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namespace alsa
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{
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// Errors {{{
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class Exception : public ::Exception
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{
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public:
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explicit Exception(std::string msg) : ::Exception("[Alsa] "+ msg){}
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};
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class ControlInterfaceError : public Exception
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{
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public:
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ControlInterfaceError(int code, std::string msg)
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: Exception(msg +" ["+ std::to_string(code) +"]") {}
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};
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class MixerError : public Exception {
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using Exception::Exception;
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};
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// }}}
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// ControlInterface {{{
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class ControlInterface
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{
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concurrency::SpinLock lock;
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snd_hctl_t *hctl;
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snd_hctl_elem_t *elem;
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snd_ctl_t *ctl;
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snd_ctl_elem_info_t *info;
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snd_ctl_elem_value_t *value;
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snd_ctl_elem_id_t *id;
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public:
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explicit ControlInterface(int numid);
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~ControlInterface();
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ControlInterface(const ControlInterface &) = delete;
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ControlInterface &operator=(const ControlInterface &) = delete;
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bool wait(int timeout = -1);
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void process_events();
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bool test_device_plugged();
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};
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// }}}
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// Mixer {{{
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class Mixer
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{
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concurrency::SpinLock lock;
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snd_mixer_t *hardware_mixer = nullptr;
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snd_mixer_elem_t *mixer_element = nullptr;
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public:
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explicit Mixer(std::string mixer_control_name);
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~Mixer();
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Mixer(const Mixer &) = delete;
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Mixer &operator=(const Mixer &) = delete;
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bool wait(int timeout = -1);
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int process_events();
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int get_volume();
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void set_volume(float percentage);
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void set_mute(bool mode);
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void toggle_mute();
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bool is_muted();
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protected:
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void error_handler(std::string message);
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};
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// }}}
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}
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