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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
%module pyarmnn_tfliteparser
%{
#include "armnnTfLiteParser/ITfLiteParser.hpp"
#include "armnn/Types.hpp"
#include "armnn/INetwork.hpp"
%}
//typemap definitions and other common stuff
%include "standard_header.i"
namespace std {
%template(BindingPointInfo) pair<int, armnn::TensorInfo>;
%template(MapStringTensorShape) map<std::string, armnn::TensorShape>;
%template(StringVector) vector<string>;
}
namespace armnnTfLiteParser
{
%feature("docstring",
"
Interface for creating a parser object using TfLite (https://www.tensorflow.org/lite) tflite files.
Parsers are used to automatically construct Arm NN graphs from model files.
") ITfLiteParser;
%nodefaultctor ITfLiteParser;
class ITfLiteParser
{
public:
%feature("docstring",
"
Retrieve binding info (layer id and tensor info) for the network input identified by the given layer name and subgraph id.
Args:
subgraphId (int): The subgraph id.
name (str): Name of the input.
Returns:
tuple: (`int`, `TensorInfo`).
") GetNetworkInputBindingInfo;
std::pair<int, armnn::TensorInfo> GetNetworkInputBindingInfo(size_t subgraphId, const std::string& name);
%feature("docstring",
"
Retrieve binding info (layer id and tensor info) for the network output identified by the given layer name and subgraph id.
Args:
subgraphId (int): The subgraphID.
name (str): Name of the output.
Returns:
tuple: (`int`, `TensorInfo`).
") GetNetworkOutputBindingInfo;
std::pair<int, armnn::TensorInfo> GetNetworkOutputBindingInfo(size_t subgraphId, const std::string& name);
%feature("docstring",
"
Return the number of subgraphs in the parsed model.
Returns:
int: The number of subgraphs.
") GetSubgraphCount;
size_t GetSubgraphCount();
%feature("docstring",
"
Return the input tensor names for a given subgraph.
Args:
subgraphId (int): The subgraph id.
Returns:
list: A list of the input tensor names for the given model.
") GetSubgraphInputTensorNames;
std::vector<std::string> GetSubgraphInputTensorNames(size_t subgraphId);
%feature("docstring",
"
Return the output tensor names for a given subgraph.
Args:
subgraphId (int): The subgraph id
Returns:
list: A list of the output tensor names for the given model.
") GetSubgraphOutputTensorNames;
std::vector<std::string> GetSubgraphOutputTensorNames(size_t subgraphId);
};
%extend ITfLiteParser {
// This is not a substitution of the default constructor of the Armnn class. It tells swig to create custom __init__
// method for ITfLiteParser python object that will use static factory method to do the job.
ITfLiteParser() {
return armnnTfLiteParser::ITfLiteParser::CreateRaw();
}
// The following does not replace a real destructor of the Armnn class.
// It creates a functions that will be called when swig object goes out of the scope to clean resources.
// so the user doesn't need to call ITfLiteParser::Destroy himself.
// $self` is a pointer to extracted ArmNN ITfLiteParser object.
~ITfLiteParser() {
armnnTfLiteParser::ITfLiteParser::Destroy($self);
}
%feature("docstring",
"
Create the network from a flatbuffers binary file.
Args:
graphFile (str): Path to the tflite model to be parsed.
Returns:
INetwork: Parsed network.
Raises:
RuntimeError: If model file was not found.
") CreateNetworkFromBinaryFile;
%newobject CreateNetworkFromBinaryFile;
armnn::INetwork* CreateNetworkFromBinaryFile(const char* graphFile) {
return $self->CreateNetworkFromBinaryFile(graphFile).release();
}
}
}
// Clear exception typemap.
%exception;
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