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#ifndef CAFFE_HDF5_DATA_LAYER_HPP_
#define CAFFE_HDF5_DATA_LAYER_HPP_
#include "hdf5.h"
#include <string>
#include <vector>
#include "caffe/blob.hpp"
#include "caffe/layer.hpp"
#include "caffe/proto/caffe.pb.h"
#include "caffe/layers/base_data_layer.hpp"
namespace caffe {
/**
* @brief Provides data to the Net from HDF5 files.
*
* TODO(dox): thorough documentation for Forward and proto params.
*/
template <typename Dtype>
class HDF5DataLayer : public Layer<Dtype> {
public:
explicit HDF5DataLayer(const LayerParameter& param)
: Layer<Dtype>(param), offset_() {}
virtual ~HDF5DataLayer();
virtual void LayerSetUp(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top);
// Data layers have no bottoms, so reshaping is trivial.
virtual void Reshape(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top) {}
virtual inline const char* type() const { return "HDF5Data"; }
virtual inline int ExactNumBottomBlobs() const { return 0; }
virtual inline int MinTopBlobs() const { return 1; }
protected:
void Next();
bool Skip();
virtual void Forward_cpu(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top);
virtual void Forward_gpu(const vector<Blob<Dtype>*>& bottom,
const vector<Blob<Dtype>*>& top);
virtual void Backward_cpu(const vector<Blob<Dtype>*>& top,
const vector<bool>& propagate_down, const vector<Blob<Dtype>*>& bottom) {}
virtual void Backward_gpu(const vector<Blob<Dtype>*>& top,
const vector<bool>& propagate_down, const vector<Blob<Dtype>*>& bottom) {}
virtual void LoadHDF5FileData(const char* filename);
std::vector<std::string> hdf_filenames_;
unsigned int num_files_;
unsigned int current_file_;
hsize_t current_row_;
std::vector<shared_ptr<Blob<Dtype> > > hdf_blobs_;
std::vector<unsigned int> data_permutation_;
std::vector<unsigned int> file_permutation_;
uint64_t offset_;
};
} // namespace caffe
#endif // CAFFE_HDF5_DATA_LAYER_HPP_
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