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#include "pulseaudiocontroller.h"
#include <QDebug>
class MainLoopLocker {
public:
MainLoopLocker(pa_threaded_mainloop *mainloop) : m_mainloop(mainloop) {
pa_threaded_mainloop_lock(mainloop);
}
~MainLoopLocker() {
pa_threaded_mainloop_unlock(m_mainloop);
}
private:
pa_threaded_mainloop *m_mainloop;
};
PulseAudioController::PulseAudioController(QObject *parent) :
QObject(parent), mController(0)
{
setupController();
}
void PulseAudioController::setupController()
{
if (!mController) {
mController = new InternalController();
mWorker = new QThread;
mController->moveToThread(mWorker);
mWorker->start();
connect(mController, SIGNAL(sinkInputChanged(QVariantMap)), this, SIGNAL(sinkInputChanged(QVariantMap)));
connect(mController, SIGNAL(sinkInputRemoved(int)), this, SIGNAL(sinkInputRemoved(int)));
connect(mController, SIGNAL(sinkInfoChanged(QVariantMap)), this, SIGNAL(sinkInfoChanged(QVariantMap)));
connect(mController, SIGNAL(sinkInfoRemoved(int)), this, SIGNAL(sinkInfoRemoved(int)));
connect(mController, SIGNAL(clientChanged(QVariantMap)), this, SIGNAL(clientChanged(QVariantMap)));
connect(mController, SIGNAL(clientRemoved(int)), this, SIGNAL(clientRemoved(int)));
}
}
InternalController::InternalController(PulseAudioController *parent) : QObject(parent)
{
mMainloop = pa_threaded_mainloop_new();
if (pa_threaded_mainloop_start(mMainloop)) {
qDebug("Unable to start pulseaudio mainloop");
pa_threaded_mainloop_free(mMainloop);
mMainloop = 0;
return;
}
mApi = pa_threaded_mainloop_get_api(mMainloop);
QTimer::singleShot(0, this, SLOT(connectToContext()));
}
void InternalController::waitForOperation(pa_operation *operation)
{
while(pa_operation_get_state(operation) == PA_OPERATION_RUNNING)
pa_threaded_mainloop_wait(mMainloop);
pa_operation_unref(operation);
}
void InternalController::connectToContext()
{
MainLoopLocker looplock(mMainloop);
mContext = pa_context_new(mApi,"AM Monitor PulseAudio Observer");
if (!mContext) {
qDebug("Cannot create new pulseaudio context");
pa_threaded_mainloop_free(mMainloop);
return;
}
pa_context_set_state_callback(mContext, &InternalController::contextStateCallback, this);
pa_context_set_event_callback(mContext, NULL, NULL);
if (pa_context_connect(mContext,NULL, (pa_context_flags_t)0, NULL) < 0) {
qDebug("Cannot create a connection to the pulseaudio context");
pa_context_unref(mContext);
pa_threaded_mainloop_free(mMainloop);
return;
}
}
void InternalController::setupSubscription()
{
qDebug("SETUP SUBSCRIPTION");
pa_operation *o;
pa_context_set_subscribe_callback(mContext,&InternalController::contextSubscriptionCallback, this);
if(!(o = pa_context_subscribe(mContext,
(pa_subscription_mask_t)
(PA_SUBSCRIPTION_MASK_CLIENT
|PA_SUBSCRIPTION_MASK_SINK_INPUT
| PA_SUBSCRIPTION_MASK_SINK
/*|PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT*/),
&InternalController::contextSuccessCallback,this)))
qCritical() << "pa_context_subscribe() failed";
pa_operation_unref(o);
}
void InternalController::contextStateCallback(pa_context *context, void *userdata)
{
InternalController *controller = reinterpret_cast<InternalController*>(userdata);
pa_context_state_t state = pa_context_get_state(context);
switch(state) {
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
case PA_CONTEXT_READY:
controller->setupSubscription();
break;
case PA_CONTEXT_UNCONNECTED:
case PA_CONTEXT_TERMINATED:
case PA_CONTEXT_FAILED:
break;
}
pa_threaded_mainloop_signal(controller->getMainloop(),0);
}
void InternalController::clientCallback(pa_context *context, const pa_client_info *info, int eol, void *userdata) {
(void)eol;
(void)context;
InternalController *controller = reinterpret_cast<InternalController*>(userdata);
if (!info)
return;
QMap<QString, QVariant> client;
client["index"] = info->index;
client["name"] = QString::fromLatin1(info->name);
client["ownerModule"] = info->owner_module;
client["driver"] = QString::fromLatin1(info->driver);
emit controller->clientChanged(client);
}
void InternalController::sinkInputCallback(pa_context *context, const pa_sink_input_info *info, int eol, void *userdata) {
(void)eol;
(void)context;
InternalController *controller = reinterpret_cast<InternalController*>(userdata);
if (!info)
return;
QMap<QString, QVariant> sinkinput;
sinkinput["index"] = info->index;
sinkinput["name"] = QString::fromLatin1(info->name);
sinkinput["volume"] = InternalController::getVolume(info->volume,0);
sinkinput["clientIndex"] = info->client;
sinkinput["sinkIndex"] = info->sink;
sinkinput["corked"] = info->corked;
sinkinput["appName"] = QString(pa_proplist_gets(info->proplist,"application.name"));
sinkinput["role"] = QString(pa_proplist_gets(info->proplist,"media.role"));
//sinkinput["propList"] = info->proplist;
//sinkinput["sampleSpec"] = info->sample_spec;
//sinkinput["channelMap"] = info->channel_map;
emit controller->sinkInputChanged(sinkinput);
}
void InternalController::sinkInfoCallback(pa_context *context, const pa_sink_info *info, int eol, void *userdata)
{
(void)eol;
(void)context;
InternalController *controller = reinterpret_cast<InternalController*>(userdata);
if (!info)
return;
QMap<QString, QVariant> sinkInfo;
sinkInfo["index"] = info->index;
sinkInfo["name"] = info->name;
sinkInfo["volume"] = InternalController::getVolume(info->volume, 0);
sinkInfo["mute"] = info->mute;
emit controller->sinkInfoChanged(sinkInfo);
}
int InternalController::getVolume(pa_cvolume volume, int channel)
{
char ret[PA_VOLUME_SNPRINT_MAX];
pa_volume_snprint(ret, sizeof(ret), volume.values[channel]);
return atoi(ret);
}
void InternalController::contextSubscriptionCallback(pa_context *context, pa_subscription_event_type_t t, uint32_t index, void *userdata)
{
InternalController *controller = reinterpret_cast<InternalController*>(userdata);
switch( t&PA_SUBSCRIPTION_EVENT_FACILITY_MASK) {
case PA_SUBSCRIPTION_EVENT_CLIENT:
{
qDebug() << "XXXXXXXevent: " << (t&PA_SUBSCRIPTION_EVENT_TYPE_MASK);
if((t&PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE) {
emit controller->clientRemoved(index);
qDebug() << "removed client" << index;
} else {
qDebug() << "added client" << index;
pa_operation *o;
if (!(o=pa_context_get_client_info(context, index, &InternalController::clientCallback, controller)))
qCritical("pa_context_get_sink_input_info() failed");
pa_operation_unref(o);
}
break;
}
case PA_SUBSCRIPTION_EVENT_SINK_INPUT:
{
qDebug() << "event: " << (t&PA_SUBSCRIPTION_EVENT_TYPE_MASK);
if((t&PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE) {
emit controller->sinkInputRemoved(index);
qDebug() << "removed sink input" << index;
} else {
qDebug() << "added sink input" << index;
pa_operation *o;
if (!(o=pa_context_get_sink_input_info(context, index, &InternalController::sinkInputCallback, controller)))
qCritical("pa_context_get_sink_input_info() failed");
pa_operation_unref(o);
}
}
break;
case PA_SUBSCRIPTION_EVENT_SINK:
{
if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE) {
emit controller->sinkInfoRemoved(index);
} else {
pa_operation *o;
if (!(o=pa_context_get_sink_info_by_index(context, index, &InternalController::sinkInfoCallback, controller)))
qCritical("pa_context_get_sink_info_by_index() failed");
pa_operation_unref(o);
}
}
break;
case PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT:
break;
}
pa_threaded_mainloop_signal(controller->getMainloop(),0);
}
void InternalController::contextSuccessCallback(pa_context *context, int success, void *userdata)
{
(void)success;
InternalController *controller = reinterpret_cast<InternalController*>(userdata);
pa_operation *o;
if (!(o=pa_context_get_client_info_list(context, &InternalController::clientCallback, controller)))
qCritical("pa_context_get_client_info_list() failed");
pa_operation_unref(o);
if (!(o=pa_context_get_sink_input_info_list(context, &InternalController::sinkInputCallback, controller)))
qCritical("pa_context_get_sink_input_info_list() failed");
pa_operation_unref(o);
if (!(o=pa_context_get_sink_info_list(context, &InternalController::sinkInfoCallback, controller)))
qCritical("pa_context_get_sink_info_list() failed");
pa_operation_unref(o);
pa_threaded_mainloop_signal(controller->getMainloop(),0);
}
InternalController::~InternalController()
{
}
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