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wait first frame result to avoid empty result while dual_buf is true. #69

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wait first frame result to avoid empty result while dual_buf is true. #69

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1 change: 1 addition & 0 deletions components/nn/include/maix_nn.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -334,6 +334,7 @@ namespace maix::nn
private:
MUD _mud;
NNBase *_impl;
bool wait_first; // wait result for first frame
};

}; // namespace maix::nn
5 changes: 5 additions & 0 deletions components/nn/src/maix_nn.cpp
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Expand Up @@ -107,6 +107,7 @@ namespace maix::nn

NN::NN(const std::string &model_path, bool dual_buff)
{
wait_first = dual_buff; // if dual_buff is true, wait first frame result
_impl = nullptr;
#if PLATFORM_MAIXCAM
_impl = new NN_MaixCam(dual_buff);
Expand Down Expand Up @@ -201,6 +202,10 @@ namespace maix::nn

tensor::Tensors *NN::forward_image(image::Image &img, std::vector<float> mean, std::vector<float> scale, image::Fit fit, bool copy_result, bool dual_buff_wait)
{
if(wait_first){
wait_first = false;
dual_buff_wait = true; // wait first frame result , to avoid empty return
}
return _impl->forward_image(img, mean, scale, fit, copy_result, dual_buff_wait);
}

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