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EventThread.cpp
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28 
29 #include "EventThread.h"
30 #include "Dispatcher.h"
31 #include "Util.h"
32 #include "PerfTracker.h"
33 
34 #include <Argus/Ext/InternalFrameCount.h>
35 
36 namespace ArgusSamples {
37 
38 EventThread::EventThread(Argus::CaptureSession *session,
39  SessionPerfTracker *sessionPerfTracker)
40  : m_session(session)
41  , m_sessionPerfTracker(sessionPerfTracker)
42 {
43 }
44 
46 {
47 }
48 
50 {
51  std::vector<Argus::EventType> eventTypes;
52  eventTypes.push_back(Argus::EVENT_TYPE_CAPTURE_COMPLETE);
53 
54  PROPAGATE_ERROR(Dispatcher::getInstance().createEventQueue(eventTypes, m_eventQueue,
55  m_session));
56 
57  return true;
58 }
59 
61 {
62  Dispatcher &dispatcher = Dispatcher::getInstance();
63 
64  // wait for events (use a time out to allow the thread to be shutdown even if there are no
65  // new events)
66  PROPAGATE_ERROR(dispatcher.waitForEvents(m_eventQueue.get(), TimeValue::fromMSec(100),
67  m_session));
68 
69  Argus::IEventQueue *iEventQueue =
70  Argus::interface_cast<Argus::IEventQueue>(m_eventQueue.get());
71  if (!iEventQueue)
72  ORIGINATE_ERROR("Failed to get iEventQueue");
73 
74  for (uint32_t i = 0; i < iEventQueue->getSize(); i++)
75  {
76  const Argus::Event *event = iEventQueue->getEvent(i);
77  const Argus::IEvent *iEvent = Argus::interface_cast<const Argus::IEvent>(event);
78  if (!iEvent)
79  ORIGINATE_ERROR("Failed to get IEvent interface");
80 
81  if (iEvent->getEventType() == Argus::EVENT_TYPE_CAPTURE_COMPLETE)
82  {
84 
85  const Argus::IEventCaptureComplete *iEventCaptureComplete
86  = Argus::interface_cast<const Argus::IEventCaptureComplete>(event);
87  const Argus::CaptureMetadata *metaData = iEventCaptureComplete->getMetadata();
88  if (metaData)
89  {
90  const Argus::ICaptureMetadata *iCaptureMeta =
91  Argus::interface_cast<const Argus::ICaptureMetadata>(metaData);
92  if (iCaptureMeta)
93  {
94  /// @todo IEvent documentation says the time value is in nano seconds, but
95  /// actually it's in micro seconds.
96  const TimeValue latency =
97  TimeValue::fromUSec(iEvent->getTime()) -
98  TimeValue::fromNSec(iCaptureMeta->getSensorTimestamp());
99  PROPAGATE_ERROR(m_sessionPerfTracker->onEvent(
101  }
102 
103  const Argus::Ext::IInternalFrameCount *iInternalFrameCount =
104  Argus::interface_cast<const Argus::Ext::IInternalFrameCount>(metaData);
105  if (iInternalFrameCount)
106  {
107  const uint64_t currentFrameCount = iInternalFrameCount->getInternalFrameCount();
109  currentFrameCount));
110  }
111 
112  }
113  }
114  }
115 
116  return true;
117 }
118 
120 {
121  return true;
122 }
123 
124 }; // namespace ArgusSamples