media.h File Reference

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Macros
#define	EXTERN_C   extern
#define	ENUM_C(name)   typedef enum
#define	ENUM_END_C(name)   name

Enumerations
enum	muteState { UNKNOWN = -1, UNMUTED, MUTED }

Functions
muteState	getMuteState ()

Macro Definition Documentation

#define ENUM_C

(

name

)

typedef enum

Definition at line 13 of file media.h.

#define ENUM_END_C

(

name

)

name

Definition at line 14 of file media.h.

#define EXTERN_C   extern

Definition at line 12 of file media.h.

Enumeration Type Documentation

enum muteState

Enumerator
UNKNOWN
UNMUTED
MUTED

Definition at line 19 of file media.h.

                  {
    UNKNOWN = -1,
    UNMUTED,
    MUTED
} ENUM_END_C(muteState);

Function Documentation

muteState getMuteState

(

)

Definition at line 102 of file media_linux.cpp.

References lastKnown, MUTED, UNKNOWN, and UNMUTED.

Referenced by KbPerf::applyIndicators().

                        {
#ifdef USE_LIBPULSE
    static pa_threaded_mainloop* mainLoop = nullptr;

    QMutexLocker locker(&mutex);

    //Setup main loop thread used for communicating with Pulse Audio. All
    //communication is done asynchronously.
    if(mainLoop == nullptr){
        mainLoop = pa_threaded_mainloop_new();
        if(mainLoop == nullptr)
            return lastKnown;

        if(pa_threaded_mainloop_start(mainLoop) != 0){
            pa_threaded_mainloop_free(mainLoop);
            mainLoop = nullptr;
            return lastKnown;
        }
    }

    //Connect to the local Pulse Audio server. It's usually running but a
    //reconnect is attempted periodically whenever the connection fails or is
    //terminated.
    if(paContext == nullptr && QDateTime::currentMSecsSinceEpoch() >= reconnectTime){
        pa_threaded_mainloop_lock(mainLoop);
        {
            pa_mainloop_api* api = pa_threaded_mainloop_get_api(mainLoop);
            Q_ASSERT(api != nullptr);

            paContext = pa_context_new(api, "QPulse");
            Q_ASSERT(paContext != nullptr);
            pa_context_set_state_callback(paContext, &ContextStateCallback, nullptr);
            pa_context_connect(paContext, nullptr, PA_CONTEXT_NOFAIL, nullptr);
        }
        pa_threaded_mainloop_unlock(mainLoop);
    }
#endif

    return lastKnown;
}

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