C++ (Cpp) PULSEAUDIO_pa_context_get_sink_info_by_index Examples

Example #1

File: SDL_pulseaudio.c Project: MichalWolodkiewicz/wizznic-android

static SDL_bool
FindDeviceName(struct SDL_PrivateAudioData *h, void *handle)
{
    const uint32_t idx = ((uint32_t) ((size_t) handle)) - 1;

    if (handle == NULL) {  /* NULL == default device. */
        return SDL_TRUE;
    }

    WaitForPulseOperation(h->mainloop, PULSEAUDIO_pa_context_get_sink_info_by_index(h->context, idx, DeviceNameCallback, &h->device_name));
    return (h->device_name != NULL);
}

Example #2

File: SDL_pulseaudio.c Project: 0-wiz-0/mame

/* This is called when PulseAudio has a device connected/removed/changed. */
static void
HotplugCallback(pa_context *c, pa_subscription_event_type_t t, uint32_t idx, void *data)
{
    const SDL_bool added = ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_NEW);
    const SDL_bool removed = ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE);

    if (added || removed) {  /* we only care about add/remove events. */
        const SDL_bool sink = ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK);
        const SDL_bool source = ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE);

        /* adds need sink details from the PulseAudio server. Another callback... */
        if (added && sink) {
            PULSEAUDIO_pa_context_get_sink_info_by_index(hotplug_context, idx, SinkInfoCallback, NULL);
        } else if (added && source) {
            PULSEAUDIO_pa_context_get_source_info_by_index(hotplug_context, idx, SourceInfoCallback, NULL);
        } else if (removed && (sink || source)) {
            /* removes we can handle just with the device index. */
            SDL_RemoveAudioDevice(source != 0, (void *) ((size_t) idx+1));
        }
    }
}