File size: 3,848 Bytes
7fc5a59 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | #ifndef OPENPOSE_THREAD_W_QUEUE_ASSEMBLER_HPP
#define OPENPOSE_THREAD_W_QUEUE_ASSEMBLER_HPP
#include <queue> // std::queue
#include <openpose/core/common.hpp>
#include <openpose/thread/worker.hpp>
#include <openpose/utilities/pointerContainer.hpp>
namespace op
{
// Note: The goal of WQueueAssembler and WQueueSplitter (integrated in wDatumProducer) is to reduce the latency
// of OpenPose. E.g., if 4 cameras in stereo mode, without this, OpenPose would have to process all 4 cameras
// with the same GPU. In this way, this work is parallelized over GPUs (1 view for each).
// Pros: Latency highly recuded, same speed
// Cons: Requires these extra 2 classes and proper threads for them
template<typename TDatums>
class WQueueAssembler : public Worker<std::shared_ptr<TDatums>>
{
public:
explicit WQueueAssembler();
virtual ~WQueueAssembler();
void initializationOnThread();
void work(std::shared_ptr<TDatums>& tDatums);
private:
std::shared_ptr<TDatums> mNextTDatums;
DELETE_COPY(WQueueAssembler);
};
}
// Implementation
namespace op
{
template<typename TDatums>
WQueueAssembler<TDatums>::WQueueAssembler()
{
}
template<typename TDatums>
WQueueAssembler<TDatums>::~WQueueAssembler()
{
}
template<typename TDatums>
void WQueueAssembler<TDatums>::initializationOnThread()
{
}
template<typename TDatums>
void WQueueAssembler<TDatums>::work(std::shared_ptr<TDatums>& tDatums)
{
try
{
// Profiling speed
const auto profilerKey = Profiler::timerInit(__LINE__, __FUNCTION__, __FILE__);
// Input TDatums -> enqueue it
if (checkNoNullNorEmpty(tDatums))
{
// Sanity check
if (tDatums->size() > 1)
error("This function assumes that WQueueSplitter (inside WDatumProducer)"
" was applied in the first place, i.e., that there is only 1 element"
" per TDatums (size = " + std::to_string(tDatums->size()) + ").",
__LINE__, __FUNCTION__, __FILE__);
auto tDatumPtr = (*tDatums)[0];
// Single view --> Return
if (tDatumPtr->subIdMax == 0)
return;
// Multiple view --> Merge views into different TDatums (1st frame)
if (mNextTDatums == nullptr)
mNextTDatums = std::make_shared<TDatums>();
// Multiple view --> Merge views into different TDatums
mNextTDatums->emplace_back(tDatumPtr);
// Last view - Return frame
if (mNextTDatums->back()->subId == mNextTDatums->back()->subIdMax)
{
tDatums = mNextTDatums;
mNextTDatums = nullptr;
// Profiling speed
Profiler::timerEnd(profilerKey);
Profiler::printAveragedTimeMsOnIterationX(profilerKey, __LINE__, __FUNCTION__, __FILE__);
// Debugging log
opLogIfDebug("", Priority::Low, __LINE__, __FUNCTION__, __FILE__);
}
// Non-last view - Return nothing
else
tDatums = nullptr;
}
// Sleep if no new tDatums to either pop or push
else
std::this_thread::sleep_for(std::chrono::milliseconds{1});
}
catch (const std::exception& e)
{
this->stop();
tDatums = nullptr;
error(e.what(), __LINE__, __FUNCTION__, __FILE__);
}
}
extern template class WQueueAssembler<BASE_DATUMS>;
}
#endif // OPENPOSE_THREAD_W_QUEUE_ASSEMBLER_HPP
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