/*----------------------------------------------------------------------
| NPT_TimeStamp::operator-
+---------------------------------------------------------------------*/
NPT_TimeStamp
operator-(const NPT_TimeStamp& timestamp, long seconds)
{
// shortcut
if (seconds == 0) return NPT_TimeStamp(timestamp);
NPT_TimeStamp result = timestamp;
result.m_Seconds -= seconds;
return result;
}
/*----------------------------------------------------------------------
| PLT_StateVariable::IsReadyToPublish
+---------------------------------------------------------------------*/
bool
PLT_StateVariable::IsReadyToPublish()
{
NPT_TimeStamp now;
NPT_System::GetCurrentTimeStamp(now);
if (m_Rate == NPT_TimeStamp() || m_LastEvent + m_Rate <= now ) {
m_LastEvent = now;
return true;
}
return false;
}
/*----------------------------------------------------------------------
| PLT_ThreadTask::Start
+---------------------------------------------------------------------*/
NPT_Result
PLT_ThreadTask::Start(PLT_TaskManager* task_manager,/* = NULL */
NPT_TimeInterval* delay, /* = NULL */
bool auto_destroy /* = true */)
{
m_Abort.SetValue(0);
m_AutoDestroy = auto_destroy;
m_Delay = delay?*delay:NPT_TimeStamp(0.);
m_TaskManager = task_manager;
if (m_TaskManager) {
NPT_CHECK_SEVERE(m_TaskManager->AddTask(this));
return NPT_SUCCESS;
} else {
return StartThread();
}
}
/*----------------------------------------------------------------------
| PLT_MediaController::OnGetPositionInfoResponse
+---------------------------------------------------------------------*/
NPT_Result
PLT_MediaController::OnGetPositionInfoResponse(NPT_Result res,
PLT_DeviceDataReference& device,
PLT_ActionReference& action,
void* userdata)
{
NPT_String value;
PLT_PositionInfo info;
if (NPT_FAILED(res) || action->GetErrorCode() != 0) {
goto bad_action;
}
if (NPT_FAILED(action->GetArgumentValue("Track", info.track))) {
goto bad_action;
}
if (NPT_FAILED(action->GetArgumentValue("TrackDuration", value))) {
goto bad_action;
}
if (NPT_FAILED(PLT_Didl::ParseTimeStamp(value, info.track_duration))) {
// some renderers return garbage sometimes
info.track_duration = NPT_TimeStamp(0.);
}
if (NPT_FAILED(action->GetArgumentValue("TrackMetaData", info.track_metadata))) {
goto bad_action;
}
if (NPT_FAILED(action->GetArgumentValue("TrackURI", info.track_uri))) {
goto bad_action;
}
if (NPT_FAILED(action->GetArgumentValue("RelTime", value))) {
goto bad_action;
}
// NOT_IMPLEMENTED is a valid value according to spec
if (value != "NOT_IMPLEMENTED" && NPT_FAILED(PLT_Didl::ParseTimeStamp(value, info.rel_time))) {
// some dogy renderers return garbage sometimes
info.rel_time = NPT_TimeStamp(-1.0f);
}
if (NPT_FAILED(action->GetArgumentValue("AbsTime", value))) {
goto bad_action;
}
// NOT_IMPLEMENTED is a valid value according to spec
if (value != "NOT_IMPLEMENTED" && NPT_FAILED(PLT_Didl::ParseTimeStamp(value, info.abs_time))) {
// some dogy renderers return garbage sometimes
info.abs_time = NPT_TimeStamp(-1.0f);
}
if (NPT_FAILED(action->GetArgumentValue("RelCount", info.rel_count))) {
goto bad_action;
}
if (NPT_FAILED(action->GetArgumentValue("AbsCount", info.abs_count))) {
goto bad_action;
}
m_Delegate->OnGetPositionInfoResult(NPT_SUCCESS, device, &info, userdata);
return NPT_SUCCESS;
bad_action:
m_Delegate->OnGetPositionInfoResult(NPT_FAILURE, device, NULL, userdata);
return NPT_FAILURE;
}
