TfLiteParser Class Reference

#include <TfLiteParser.hpp>

Inheritance diagram for TfLiteParser:

Public Types
using	ModelPtr = std::unique_ptr< tflite::ModelT >
using	SubgraphPtr = std::unique_ptr< tflite::SubGraphT >
using	OperatorPtr = std::unique_ptr< tflite::OperatorT >
using	OperatorCodePtr = std::unique_ptr< tflite::OperatorCodeT >
using	TensorPtr = std::unique_ptr< tflite::TensorT >
using	TensorRawPtr = const tflite::TensorT *
using	TensorRawPtrVector = std::vector< TensorRawPtr >
using	TensorIdRawPtr = std::pair< size_t, TensorRawPtr >
using	TensorIdRawPtrVector = std::vector< TensorIdRawPtr >
using	BufferPtr = std::unique_ptr< tflite::BufferT >
using	BufferRawPtr = const tflite::BufferT *

Public Member Functions
virtual armnn::INetworkPtr	CreateNetworkFromBinaryFile (const char *graphFile) override
	Create the network from a flatbuffers binary file on disk. More...
virtual armnn::INetworkPtr	CreateNetworkFromBinary (const std::vector< uint8_t > &binaryContent) override
	Create the network from a flatbuffers binary. More...
virtual BindingPointInfo	GetNetworkInputBindingInfo (size_t subgraphId, const std::string &name) const override
	Retrieve binding info (layer id and tensor info) for the network input identified by the given layer name and subgraph id. More...
virtual BindingPointInfo	GetNetworkOutputBindingInfo (size_t subgraphId, const std::string &name) const override
	Retrieve binding info (layer id and tensor info) for the network output identified by the given layer name and subgraph id. More...
virtual size_t	GetSubgraphCount () const override
	Return the number of subgraphs in the parsed model. More...
virtual std::vector< std::string >	GetSubgraphInputTensorNames (size_t subgraphId) const override
	Return the input tensor names for a given subgraph. More...
virtual std::vector< std::string >	GetSubgraphOutputTensorNames (size_t subgraphId) const override
	Return the output tensor names for a given subgraph. More...
	TfLiteParser (const armnn::Optional< ITfLiteParser::TfLiteParserOptions > &options=armnn::EmptyOptional())
virtual	~TfLiteParser ()

Static Public Member Functions
static ModelPtr	LoadModelFromFile (const char *fileName)
static ModelPtr	LoadModelFromBinary (const uint8_t *binaryContent, size_t len)
static TensorRawPtrVector	GetInputs (const ModelPtr &model, size_t subgraphIndex, size_t operatorIndex)
static TensorRawPtrVector	GetOutputs (const ModelPtr &model, size_t subgraphIndex, size_t operatorIndex)
static TensorIdRawPtrVector	GetSubgraphInputs (const ModelPtr &model, size_t subgraphIndex)
static TensorIdRawPtrVector	GetSubgraphOutputs (const ModelPtr &model, size_t subgraphIndex)
static std::vector< int32_t > &	GetInputTensorIds (const ModelPtr &model, size_t subgraphIndex, size_t operatorIndex)
static std::vector< int32_t > &	GetOutputTensorIds (const ModelPtr &model, size_t subgraphIndex, size_t operatorIndex)
static BufferRawPtr	GetBuffer (const ModelPtr &model, size_t bufferIndex)
static armnn::TensorInfo	OutputShapeOfSqueeze (const std::vector< uint32_t > &squeezeDims, const armnn::TensorInfo &inputTensorInfo)
static armnn::TensorInfo	OutputShapeOfReshape (const armnn::TensorInfo &inputTensorInfo, const std::vector< int32_t > &targetDimsIn)
Static Public Member Functions inherited from ITfLiteParser
static ITfLiteParser *	CreateRaw (const armnn::Optional< TfLiteParserOptions > &options=armnn::EmptyOptional())
static ITfLiteParserPtr	Create (const armnn::Optional< TfLiteParserOptions > &options=armnn::EmptyOptional())
static void	Destroy (ITfLiteParser *parser)

Additional Inherited Members
Protected Member Functions inherited from ITfLiteParser
virtual	~ITfLiteParser ()

Detailed Description

Definition at line 19 of file TfLiteParser.hpp.

Member Typedef Documentation

BufferPtr

using BufferPtr = std::unique_ptr<tflite::BufferT>

Definition at line 32 of file TfLiteParser.hpp.

BufferRawPtr

using BufferRawPtr = const tflite::BufferT *

Definition at line 33 of file TfLiteParser.hpp.

ModelPtr

using ModelPtr = std::unique_ptr<tflite::ModelT>

Definition at line 23 of file TfLiteParser.hpp.

OperatorCodePtr

using OperatorCodePtr = std::unique_ptr<tflite::OperatorCodeT>

Definition at line 26 of file TfLiteParser.hpp.

OperatorPtr

using OperatorPtr = std::unique_ptr<tflite::OperatorT>

Definition at line 25 of file TfLiteParser.hpp.

SubgraphPtr

using SubgraphPtr = std::unique_ptr<tflite::SubGraphT>

Definition at line 24 of file TfLiteParser.hpp.

TensorIdRawPtr

using TensorIdRawPtr = std::pair<size_t, TensorRawPtr>

Definition at line 30 of file TfLiteParser.hpp.

TensorIdRawPtrVector

using TensorIdRawPtrVector = std::vector<TensorIdRawPtr>

Definition at line 31 of file TfLiteParser.hpp.

TensorPtr

using TensorPtr = std::unique_ptr<tflite::TensorT>

Definition at line 27 of file TfLiteParser.hpp.

TensorRawPtr

using TensorRawPtr = const tflite::TensorT *

Definition at line 28 of file TfLiteParser.hpp.

TensorRawPtrVector

using TensorRawPtrVector = std::vector<TensorRawPtr>

Definition at line 29 of file TfLiteParser.hpp.

Constructor & Destructor Documentation

TfLiteParser()

TfLiteParser

(

const armnn::Optional< ITfLiteParser::TfLiteParserOptions > &

options = armnn::EmptyOptional()

)

Definition at line 489 of file TfLiteParser.cpp.

References ARMNN_ASSERT, CHECK_MODEL, CHECKED_NON_NEGATIVE, IOutputSlot::Connect(), IConnectableLayer::GetInputSlot(), IConnectableLayer::GetName(), TensorInfo::GetNumDimensions(), IConnectableLayer::GetOutputSlot(), TensorInfo::GetShape(), ReshapeDescriptor::m_TargetShape, TensorInfo::SetShape(), IOutputSlot::SetTensorInfo(), and armnnDeserializer::ToTensorInfo().

Referenced by ITfLiteParser::CreateRaw(), and TfLiteParser::~TfLiteParser().

: m_Options(options)
, m_Network(nullptr, nullptr)
, m_ParserFunctions(tflite::BuiltinOperator_MAX+1, &TfLiteParser::ParseUnsupportedOperator)
{
    // register supported operators
    m_ParserFunctions[tflite::BuiltinOperator_ADD]                     = &TfLiteParser::ParseAdd;
    m_ParserFunctions[tflite::BuiltinOperator_AVERAGE_POOL_2D]         = &TfLiteParser::ParseAveragePool2D;
    m_ParserFunctions[tflite::BuiltinOperator_BATCH_TO_SPACE_ND]       = &TfLiteParser::ParseBatchToSpaceND;
    m_ParserFunctions[tflite::BuiltinOperator_CONCATENATION]           = &TfLiteParser::ParseConcatenation;
    m_ParserFunctions[tflite::BuiltinOperator_CONV_2D]                 = &TfLiteParser::ParseConv2D;
    m_ParserFunctions[tflite::BuiltinOperator_CUSTOM]                  = &TfLiteParser::ParseCustomOperator;
    m_ParserFunctions[tflite::BuiltinOperator_DEPTHWISE_CONV_2D]       = &TfLiteParser::ParseDepthwiseConv2D;
    m_ParserFunctions[tflite::BuiltinOperator_DEQUANTIZE]              = &TfLiteParser::ParseDequantize;
    m_ParserFunctions[tflite::BuiltinOperator_EXP]                     = &TfLiteParser::ParseExp;
    m_ParserFunctions[tflite::BuiltinOperator_FULLY_CONNECTED]         = &TfLiteParser::ParseFullyConnected;
    m_ParserFunctions[tflite::BuiltinOperator_LOGISTIC]                = &TfLiteParser::ParseLogistic;
    m_ParserFunctions[tflite::BuiltinOperator_L2_NORMALIZATION]        = &TfLiteParser::ParseL2Normalization;
    m_ParserFunctions[tflite::BuiltinOperator_MAX_POOL_2D]             = &TfLiteParser::ParseMaxPool2D;
    m_ParserFunctions[tflite::BuiltinOperator_MAXIMUM]                 = &TfLiteParser::ParseMaximum;
    m_ParserFunctions[tflite::BuiltinOperator_MEAN]                    = &TfLiteParser::ParseMean;
    m_ParserFunctions[tflite::BuiltinOperator_MINIMUM]                 = &TfLiteParser::ParseMinimum;
    m_ParserFunctions[tflite::BuiltinOperator_MUL]                     = &TfLiteParser::ParseMul;
    m_ParserFunctions[tflite::BuiltinOperator_PACK]                    = &TfLiteParser::ParsePack;
    m_ParserFunctions[tflite::BuiltinOperator_PAD]                     = &TfLiteParser::ParsePad;
    m_ParserFunctions[tflite::BuiltinOperator_QUANTIZE]                = &TfLiteParser::ParseQuantize;
    m_ParserFunctions[tflite::BuiltinOperator_RELU]                    = &TfLiteParser::ParseRelu;
    m_ParserFunctions[tflite::BuiltinOperator_RELU6]                   = &TfLiteParser::ParseRelu6;
    m_ParserFunctions[tflite::BuiltinOperator_RESHAPE]                 = &TfLiteParser::ParseReshape;
    m_ParserFunctions[tflite::BuiltinOperator_RESIZE_BILINEAR]         = &TfLiteParser::ParseResizeBilinear;
    m_ParserFunctions[tflite::BuiltinOperator_RESIZE_NEAREST_NEIGHBOR] = &TfLiteParser::ParseResizeNearestNeighbor;
    m_ParserFunctions[tflite::BuiltinOperator_SLICE]                   = &TfLiteParser::ParseSlice;
    m_ParserFunctions[tflite::BuiltinOperator_SOFTMAX]                 = &TfLiteParser::ParseSoftmax;
    m_ParserFunctions[tflite::BuiltinOperator_SPACE_TO_BATCH_ND]       = &TfLiteParser::ParseSpaceToBatchND;
    m_ParserFunctions[tflite::BuiltinOperator_SPLIT]                   = &TfLiteParser::ParseSplit;
    m_ParserFunctions[tflite::BuiltinOperator_SPLIT_V]                 = &TfLiteParser::ParseSplitV;
    m_ParserFunctions[tflite::BuiltinOperator_SQUEEZE]                 = &TfLiteParser::ParseSqueeze;
    m_ParserFunctions[tflite::BuiltinOperator_STRIDED_SLICE]           = &TfLiteParser::ParseStridedSlice;
    m_ParserFunctions[tflite::BuiltinOperator_SUB]                     = &TfLiteParser::ParseSub;
    m_ParserFunctions[tflite::BuiltinOperator_TANH]                    = &TfLiteParser::ParseTanH;
    m_ParserFunctions[tflite::BuiltinOperator_TRANSPOSE]               = &TfLiteParser::ParseTranspose;
    m_ParserFunctions[tflite::BuiltinOperator_TRANSPOSE_CONV]          = &TfLiteParser::ParseTransposeConv;
    m_ParserFunctions[tflite::BuiltinOperator_UNPACK]                  = &TfLiteParser::ParseUnpack;

    // register supported custom operators
    m_CustomParserFunctions["TFLite_Detection_PostProcess"]      = &TfLiteParser::ParseDetectionPostProcess;
}

~TfLiteParser()

virtual ~TfLiteParser ( )

inlinevirtual

Definition at line 63 of file TfLiteParser.hpp.

References TfLiteParser::GetBuffer(), TfLiteParser::GetInputs(), TfLiteParser::GetInputTensorIds(), TfLiteParser::GetOutputs(), TfLiteParser::GetOutputTensorIds(), TfLiteParser::GetSubgraphInputs(), TfLiteParser::GetSubgraphOutputs(), TfLiteParser::LoadModelFromBinary(), TfLiteParser::LoadModelFromFile(), TfLiteParser::OutputShapeOfReshape(), TfLiteParser::OutputShapeOfSqueeze(), and TfLiteParser::TfLiteParser().

{}

Member Function Documentation

CreateNetworkFromBinary()

INetworkPtr CreateNetworkFromBinary ( const std::vector< uint8_t > &  binaryContent )

overridevirtual

Create the network from a flatbuffers binary.

Implements ITfLiteParser.

Definition at line 608 of file TfLiteParser.cpp.

References ARMNN_ASSERT, ARMNN_ASSERT_MSG, ARMNN_LOG, armnnTfParser::CalcPadding(), CHECK_LOCATION, CHECK_MODEL, CHECK_SUPPORTED_FUSED_ACTIVATION, CHECK_TENSOR, CHECK_VALID_SIZE, CHECKED_NON_NEGATIVE, armnn::error, TfLiteParser::GetBuffer(), TfLiteParser::GetInputs(), TfLiteParser::GetInputTensorIds(), TensorInfo::GetNumBytes(), TensorInfo::GetNumDimensions(), TensorInfo::GetNumElements(), TfLiteParser::GetOutputs(), IConnectableLayer::GetOutputSlot(), TfLiteParser::GetOutputTensorIds(), TensorInfo::GetShape(), TfLiteParser::LoadModelFromBinary(), SoftmaxDescriptor::m_Beta, Convolution2dDescriptor::m_BiasEnabled, DepthwiseConvolution2dDescriptor::m_BiasEnabled, TransposeConvolution2dDescriptor::m_BiasEnabled, BatchToSpaceNdDescriptor::m_BlockShape, SpaceToBatchNdDescriptor::m_BlockShape, BatchToSpaceNdDescriptor::m_Crops, Pooling2dDescriptor::m_DataLayout, Convolution2dDescriptor::m_DataLayout, DepthwiseConvolution2dDescriptor::m_DataLayout, L2NormalizationDescriptor::m_DataLayout, BatchToSpaceNdDescriptor::m_DataLayout, SpaceToBatchNdDescriptor::m_DataLayout, TransposeConvolution2dDescriptor::m_DataLayout, Convolution2dDescriptor::m_DilationX, DepthwiseConvolution2dDescriptor::m_DilationX, Convolution2dDescriptor::m_DilationY, DepthwiseConvolution2dDescriptor::m_DilationY, ElementwiseUnaryDescriptor::m_Operation, Pooling2dDescriptor::m_OutputShapeRounding, Pooling2dDescriptor::m_PadBottom, Convolution2dDescriptor::m_PadBottom, DepthwiseConvolution2dDescriptor::m_PadBottom, TransposeConvolution2dDescriptor::m_PadBottom, Pooling2dDescriptor::m_PaddingMethod, Pooling2dDescriptor::m_PadLeft, Convolution2dDescriptor::m_PadLeft, DepthwiseConvolution2dDescriptor::m_PadLeft, TransposeConvolution2dDescriptor::m_PadLeft, SpaceToBatchNdDescriptor::m_PadList, Pooling2dDescriptor::m_PadRight, Convolution2dDescriptor::m_PadRight, DepthwiseConvolution2dDescriptor::m_PadRight, TransposeConvolution2dDescriptor::m_PadRight, Pooling2dDescriptor::m_PadTop, Convolution2dDescriptor::m_PadTop, DepthwiseConvolution2dDescriptor::m_PadTop, TransposeConvolution2dDescriptor::m_PadTop, Pooling2dDescriptor::m_PoolHeight, Pooling2dDescriptor::m_PoolType, Pooling2dDescriptor::m_PoolWidth, Pooling2dDescriptor::m_StrideX, Convolution2dDescriptor::m_StrideX, DepthwiseConvolution2dDescriptor::m_StrideX, TransposeConvolution2dDescriptor::m_StrideX, Pooling2dDescriptor::m_StrideY, Convolution2dDescriptor::m_StrideY, DepthwiseConvolution2dDescriptor::m_StrideY, TransposeConvolution2dDescriptor::m_StrideY, armnn::NHWC, armnn::numeric_cast(), options, TensorInfo::SetShape(), IOutputSlot::SetTensorInfo(), armnnDeserializer::ToTensorInfo(), and Exception::what().

{
    ResetParser();
    m_Model = LoadModelFromBinary(binaryContent.data(), binaryContent.size());
    return CreateNetworkFromModel();
}

CreateNetworkFromBinaryFile()

INetworkPtr CreateNetworkFromBinaryFile ( const char *  graphFile )

overridevirtual

Create the network from a flatbuffers binary file on disk.

Implements ITfLiteParser.

Definition at line 601 of file TfLiteParser.cpp.

References TfLiteParser::LoadModelFromFile().

{
    ResetParser();
    m_Model = LoadModelFromFile(graphFile);
    return CreateNetworkFromModel();
}

GetBuffer()

TfLiteParser::BufferRawPtr GetBuffer ( const ModelPtr &  model, size_t  bufferIndex  )

static

Definition at line 3071 of file TfLiteParser.cpp.

References CHECK_BUFFER, CHECK_BUFFER_SIZE, CHECK_LOCATION, CHECK_TENSOR_PTR, armnn::Float32, TensorInfo::GetDataType(), armnn::GetDataTypeName(), armnn::QAsymmS8, armnn::QAsymmU8, armnn::QSymmS8, and armnn::Signed32.

Referenced by armnnTfLiteParser::ComputeWrappedIndex(), TfLiteParser::CreateNetworkFromBinary(), TfLiteParser::OutputShapeOfReshape(), TfLiteParser::OutputShapeOfSqueeze(), and TfLiteParser::~TfLiteParser().

{
    CHECK_BUFFER(model, bufferIndex);
    return model->buffers[bufferIndex].get();
}

GetInputs()

TfLiteParser::TensorRawPtrVector GetInputs ( const ModelPtr &  model, size_t  subgraphIndex, size_t  operatorIndex  )

static

Definition at line 2852 of file TfLiteParser.cpp.

References CHECK_MODEL, and CHECKED_NON_NEGATIVE.

Referenced by armnnTfLiteParser::ComputeWrappedIndex(), TfLiteParser::CreateNetworkFromBinary(), TfLiteParser::OutputShapeOfReshape(), TfLiteParser::OutputShapeOfSqueeze(), and TfLiteParser::~TfLiteParser().

{
    CHECK_MODEL(model, subgraphIndex, operatorIndex);

    const auto & subgraphPtr = model->subgraphs[subgraphIndex];
    const auto & operatorPtr = subgraphPtr->operators[operatorIndex];

    size_t inputCount = operatorPtr->inputs.size();
    TensorRawPtrVector result(inputCount);
    for (size_t i=0; i<inputCount; ++i)
    {
        uint32_t inputId = CHECKED_NON_NEGATIVE(operatorPtr->inputs[i]);
        result[i] = subgraphPtr->tensors[inputId].get();
    }
    return result;
}

GetInputTensorIds()

std::vector< int32_t > & GetInputTensorIds ( const ModelPtr &  model, size_t  subgraphIndex, size_t  operatorIndex  )

static

Definition at line 2924 of file TfLiteParser.cpp.

References CHECK_MODEL.

Referenced by armnnTfLiteParser::ComputeWrappedIndex(), TfLiteParser::CreateNetworkFromBinary(), TfLiteParser::OutputShapeOfReshape(), TfLiteParser::OutputShapeOfSqueeze(), and TfLiteParser::~TfLiteParser().

{
    CHECK_MODEL(model, subgraphIndex, operatorIndex);
    const auto & subgraphPtr = model->subgraphs[subgraphIndex];
    const auto & operatorPtr = subgraphPtr->operators[operatorIndex];
    return operatorPtr->inputs;
}

GetNetworkInputBindingInfo()

BindingPointInfo GetNetworkInputBindingInfo ( size_t  subgraphId, const std::string &  name  ) const

overridevirtual

Retrieve binding info (layer id and tensor info) for the network input identified by the given layer name and subgraph id.

Implements ITfLiteParser.

Definition at line 3140 of file TfLiteParser.cpp.

References CHECK_LOCATION, CHECK_SUBGRAPH, TfLiteParser::GetSubgraphInputs(), and armnnDeserializer::ToTensorInfo().

{
    CHECK_SUBGRAPH(m_Model, subgraphId);
    auto inputs = GetSubgraphInputs(m_Model, subgraphId);
    for (auto const & input : inputs)
    {
        if (input.second->name == name)
        {
            auto bindingId = GenerateLayerBindingId(subgraphId, input.first);
            return std::make_pair(bindingId, ToTensorInfo(input.second));
        }
    }

    std::stringstream bindings;
    for (auto const & input : inputs)
    {
        bindings << "'" << input.second->name << "' ";
    }

    throw ParseException(
        boost::str(
            boost::format("No input binding found for subgraph:%1% and name:%2%. "
                          "Possible inputs are: [%3%] %4%") %
            subgraphId %
            name %
            bindings.str() %
            CHECK_LOCATION().AsString()));
}

GetNetworkOutputBindingInfo()

BindingPointInfo GetNetworkOutputBindingInfo ( size_t  subgraphId, const std::string &  name  ) const

overridevirtual

Retrieve binding info (layer id and tensor info) for the network output identified by the given layer name and subgraph id.

Implements ITfLiteParser.

Definition at line 3170 of file TfLiteParser.cpp.

References CHECK_LOCATION, CHECK_SUBGRAPH, TfLiteParser::GetSubgraphOutputs(), and armnnDeserializer::ToTensorInfo().

{
    CHECK_SUBGRAPH(m_Model, subgraphId);
    auto outputs = GetSubgraphOutputs(m_Model, subgraphId);
    for (unsigned int i = 0; i < outputs.size(); ++i)
    {
        auto const output = outputs[i];
        if (output.second->name == name)
        {
            auto bindingId = GenerateLayerBindingId(subgraphId, output.first);
            std::vector<unsigned int> shape = m_OverridenOutputShapes.size() > 0 ?
                                                m_OverridenOutputShapes[i] : AsUnsignedVector(output.second->shape);
            return std::make_pair(bindingId, ToTensorInfo(output.second, shape));
        }
    }

    std::stringstream bindings;
    for (auto const & output : outputs)
    {
        bindings << "'" << output.second->name << "' ";
    }

    throw ParseException(
        boost::str(
            boost::format("No output binding found for subgraph:%1% and name:%2%. "
                          "Possible outputs are: [%3%] %4%") %
            subgraphId %
            name %
            bindings.str() %
            CHECK_LOCATION().AsString()));
}

GetOutputs()

TfLiteParser::TensorRawPtrVector GetOutputs ( const ModelPtr &  model, size_t  subgraphIndex, size_t  operatorIndex  )

static

Definition at line 2871 of file TfLiteParser.cpp.

References CHECK_MODEL, CHECK_TENSOR, and CHECKED_NON_NEGATIVE.

Referenced by armnnTfLiteParser::ComputeWrappedIndex(), TfLiteParser::CreateNetworkFromBinary(), TfLiteParser::OutputShapeOfReshape(), TfLiteParser::OutputShapeOfSqueeze(), and TfLiteParser::~TfLiteParser().

{
    CHECK_MODEL(model, subgraphIndex, operatorIndex);

    const auto & subgraphPtr = model->subgraphs[subgraphIndex];
    const auto & operatorPtr = subgraphPtr->operators[operatorIndex];

    size_t outputCount = operatorPtr->outputs.size();
    TensorRawPtrVector result(outputCount);
    for (size_t i=0; i<outputCount; ++i)
    {
        uint32_t outputId = CHECKED_NON_NEGATIVE(operatorPtr->outputs[i]);
        CHECK_TENSOR(model, subgraphIndex, outputId);
        result[i] = subgraphPtr->tensors[outputId].get();
    }
    return result;
}

GetOutputTensorIds()

std::vector< int32_t > & GetOutputTensorIds ( const ModelPtr &  model, size_t  subgraphIndex, size_t  operatorIndex  )

static

Definition at line 2934 of file TfLiteParser.cpp.

References ARMNN_ASSERT, CHECK_LOCATION, CHECK_MODEL, CHECK_SUBGRAPH, IConnectableLayer::GetInputSlot(), IConnectableLayer::GetNumInputSlots(), IConnectableLayer::GetNumOutputSlots(), IConnectableLayer::GetOutputSlot(), TfLiteParser::GetSubgraphInputs(), TfLiteParser::GetSubgraphOutputs(), IOutputSlot::SetTensorInfo(), and armnnDeserializer::ToTensorInfo().

Referenced by armnnTfLiteParser::ComputeWrappedIndex(), TfLiteParser::CreateNetworkFromBinary(), TfLiteParser::OutputShapeOfReshape(), TfLiteParser::OutputShapeOfSqueeze(), and TfLiteParser::~TfLiteParser().

{
    CHECK_MODEL(model, subgraphIndex, operatorIndex);
    const auto & subgraphPtr = model->subgraphs[subgraphIndex];
    const auto & operatorPtr = subgraphPtr->operators[operatorIndex];
    return operatorPtr->outputs;
}

GetSubgraphCount()

size_t GetSubgraphCount ( ) const

overridevirtual

Return the number of subgraphs in the parsed model.

Implements ITfLiteParser.

Definition at line 3203 of file TfLiteParser.cpp.

{
    return m_Model->subgraphs.size();
}

GetSubgraphInputs()

TfLiteParser::TensorIdRawPtrVector GetSubgraphInputs ( const ModelPtr &  model, size_t  subgraphIndex  )

static

Definition at line 2891 of file TfLiteParser.cpp.

References CHECK_SUBGRAPH, CHECK_TENSOR, and CHECKED_NON_NEGATIVE.

Referenced by TfLiteParser::GetNetworkInputBindingInfo(), TfLiteParser::GetOutputTensorIds(), TfLiteParser::GetSubgraphInputTensorNames(), and TfLiteParser::~TfLiteParser().

{
    CHECK_SUBGRAPH(model, subgraphIndex);
    const auto & subgraphPtr = model->subgraphs[subgraphIndex];

    size_t inputCount = subgraphPtr->inputs.size();
    TensorIdRawPtrVector result(inputCount);
    for (size_t i=0; i<inputCount; ++i)
    {
        uint32_t inputId = CHECKED_NON_NEGATIVE(subgraphPtr->inputs[i]);
        CHECK_TENSOR(model, subgraphIndex, inputId);
        result[i] = std::make_pair(inputId, subgraphPtr->tensors[inputId].get());
    }
    return result;
}

GetSubgraphInputTensorNames()

std::vector< std::string > GetSubgraphInputTensorNames ( size_t  subgraphId ) const

overridevirtual

Return the input tensor names for a given subgraph.

Implements ITfLiteParser.

Definition at line 3208 of file TfLiteParser.cpp.

References CHECK_SUBGRAPH, and TfLiteParser::GetSubgraphInputs().

{
    CHECK_SUBGRAPH(m_Model, subgraphId);
    auto inputs = GetSubgraphInputs(m_Model, subgraphId);
    std::vector<std::string> result;
    result.reserve(inputs.size());
    for (auto const & input : inputs)
    {
        result.push_back(input.second->name);
    }
    return result;
}

GetSubgraphOutputs()

TfLiteParser::TensorIdRawPtrVector GetSubgraphOutputs ( const ModelPtr &  model, size_t  subgraphIndex  )

static

Definition at line 2908 of file TfLiteParser.cpp.

References CHECK_SUBGRAPH, and CHECKED_NON_NEGATIVE.

Referenced by TfLiteParser::GetNetworkOutputBindingInfo(), TfLiteParser::GetOutputTensorIds(), TfLiteParser::GetSubgraphOutputTensorNames(), and TfLiteParser::~TfLiteParser().

{
    CHECK_SUBGRAPH(model, subgraphIndex);
    const auto & subgraphPtr = model->subgraphs[subgraphIndex];

    size_t outputCount = subgraphPtr->outputs.size();
    TensorIdRawPtrVector result(outputCount);
    for (size_t i=0; i<outputCount; ++i)
    {
        uint32_t outputId = CHECKED_NON_NEGATIVE(subgraphPtr->outputs[i]);
        result[i] = std::make_pair(outputId, subgraphPtr->tensors[outputId].get());
    }
    return result;
}

GetSubgraphOutputTensorNames()

std::vector< std::string > GetSubgraphOutputTensorNames ( size_t  subgraphId ) const

overridevirtual

Return the output tensor names for a given subgraph.

Implements ITfLiteParser.

Definition at line 3221 of file TfLiteParser.cpp.

References CHECK_SUBGRAPH, and TfLiteParser::GetSubgraphOutputs().

{
    CHECK_SUBGRAPH(m_Model, subgraphId);
    auto outputs = GetSubgraphOutputs(m_Model, subgraphId);
    std::vector<std::string> result;
    result.reserve(outputs.size());
    for (auto const & output : outputs)
    {
        result.push_back(output.second->name);
    }
    return result;
}

LoadModelFromBinary()

TfLiteParser::ModelPtr LoadModelFromBinary ( const uint8_t *  binaryContent, size_t  len  )

static

Definition at line 2833 of file TfLiteParser.cpp.

References CHECK_LOCATION.

Referenced by TfLiteParser::CreateNetworkFromBinary(), TfLiteParser::LoadModelFromFile(), and TfLiteParser::~TfLiteParser().

{
    if (binaryContent == nullptr)
     {
        throw InvalidArgumentException(boost::str(boost::format("Invalid (null) binary content %1%") %
                                       CHECK_LOCATION().AsString()));
     }
    flatbuffers::Verifier verifier(binaryContent, len);
    if (verifier.VerifyBuffer<tflite::Model>() == false)
    {
        throw ParseException(
            boost::str(boost::format("Buffer doesn't conform to the expected Tensorflow Lite "
                                     "flatbuffers format. size:%1% %2%") %
                       len %
                       CHECK_LOCATION().AsString()));
    }
    return tflite::UnPackModel(binaryContent);
}

LoadModelFromFile()

TfLiteParser::ModelPtr LoadModelFromFile ( const char *  fileName )

static

Definition at line 2809 of file TfLiteParser.cpp.

References CHECK_LOCATION, and TfLiteParser::LoadModelFromBinary().

Referenced by TfLiteParser::CreateNetworkFromBinaryFile(), and TfLiteParser::~TfLiteParser().

{
    if (fileName == nullptr)
    {
        throw InvalidArgumentException(boost::str(boost::format("Invalid (null) file name %1%") %
                                       CHECK_LOCATION().AsString()));
    }
    boost::system::error_code errorCode;
    boost::filesystem::path pathToFile(fileName);
    if (!boost::filesystem::exists(pathToFile, errorCode))
    {
        std::string locationString = CHECK_LOCATION().AsString();
        std::string msg = boost::str(boost::format("Cannot find the file (%1%) errorCode: %2% %3%") %
                                     fileName %
                                     errorCode %
                                         locationString);
        throw FileNotFoundException(msg);
    }
    std::ifstream file(fileName, std::ios::binary);
    std::string fileContent((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
    return LoadModelFromBinary(reinterpret_cast<const uint8_t *>(fileContent.c_str()),
                               fileContent.size());
}

OutputShapeOfReshape()

armnn::TensorInfo OutputShapeOfReshape ( const armnn::TensorInfo &  inputTensorInfo, const std::vector< int32_t > &  targetDimsIn  )

static

Definition at line 1928 of file TfLiteParser.cpp.

References ARMNN_ASSERT, ARMNN_THROW_PARSE_EXCEPTION, CHECK_LOCATION, CHECK_MODEL, CHECK_SUPPORTED_FUSED_ACTIVATION, CHECK_VALID_SIZE, CHECKED_NON_NEGATIVE, armnnDeserializer::CheckShape(), IOutputSlot::Connect(), TfLiteParser::GetBuffer(), TensorInfo::GetDataType(), TfLiteParser::GetInputs(), IConnectableLayer::GetInputSlot(), TfLiteParser::GetInputTensorIds(), IConnectableLayer::GetName(), TensorInfo::GetNumBytes(), TensorInfo::GetNumDimensions(), TensorInfo::GetNumElements(), IConnectableLayer::GetNumOutputSlots(), TfLiteParser::GetOutputs(), IConnectableLayer::GetOutputSlot(), TfLiteParser::GetOutputTensorIds(), TensorInfo::GetQuantizationOffset(), TensorInfo::GetQuantizationScale(), TensorInfo::GetShape(), StackDescriptor::m_Axis, FullyConnectedDescriptor::m_BiasEnabled, DetectionPostProcessDescriptor::m_DetectionsPerClass, StackDescriptor::m_InputShape, DetectionPostProcessDescriptor::m_MaxClassesPerDetection, DetectionPostProcessDescriptor::m_MaxDetections, ResizeDescriptor::m_Method, DetectionPostProcessDescriptor::m_NmsIouThreshold, DetectionPostProcessDescriptor::m_NmsScoreThreshold, DetectionPostProcessDescriptor::m_NumClasses, StackDescriptor::m_NumInputs, DetectionPostProcessDescriptor::m_ScaleH, DetectionPostProcessDescriptor::m_ScaleW, DetectionPostProcessDescriptor::m_ScaleX, DetectionPostProcessDescriptor::m_ScaleY, ReshapeDescriptor::m_TargetShape, FullyConnectedDescriptor::m_TransposeWeightMatrix, DetectionPostProcessDescriptor::m_UseRegularNms, armnn::MaxNumOfTensorDimensions, armnn::NHWC, armnn::numeric_cast(), options, armnnUtils::ProcessConcatInputTensorInfo(), OriginsDescriptor::SetConcatAxis(), TensorInfo::SetShape(), IOutputSlot::SetTensorInfo(), ViewsDescriptor::SetViewOriginCoord(), ViewsDescriptor::SetViewSize(), and armnnDeserializer::ToTensorInfo().

Referenced by TfLiteParser::~TfLiteParser().

{
    std::vector<unsigned int> outputDims(targetDimsIn.begin(), targetDimsIn.end());
    const auto stretchDim = std::find(targetDimsIn.begin(), targetDimsIn.end(), -1);

    if (stretchDim != targetDimsIn.end())
    {
        if (std::find(std::next(stretchDim), targetDimsIn.end(), -1) != targetDimsIn.end())
        {
            throw ParseException(
                boost::str(
                    boost::format("At most one component of shape can be -1 %1%") % CHECK_LOCATION().AsString()));
        }

        auto targetNumElements =
            boost::numeric_cast<unsigned int>(
                std::accumulate(targetDimsIn.begin(), targetDimsIn.end(), -1, std::multiplies<int32_t>()));

        auto stretchIndex = static_cast<size_t>(std::distance(targetDimsIn.begin(), stretchDim));
        outputDims[stretchIndex] = inputTensorInfo.GetNumElements() / targetNumElements;
    }

    TensorShape outputShape = TensorShape(static_cast<unsigned int>(outputDims.size()), outputDims.data());

    TensorInfo reshapeInfo = inputTensorInfo;
    reshapeInfo.SetShape(outputShape);

    return reshapeInfo;
}

OutputShapeOfSqueeze()

armnn::TensorInfo OutputShapeOfSqueeze ( const std::vector< uint32_t > &  squeezeDims, const armnn::TensorInfo &  inputTensorInfo  )

static

Definition at line 1493 of file TfLiteParser.cpp.

References ARMNN_ASSERT, CHECK_LOCATION, CHECK_MODEL, CHECK_VALID_SIZE, TfLiteParser::GetBuffer(), TfLiteParser::GetInputs(), TfLiteParser::GetInputTensorIds(), TensorInfo::GetNumBytes(), TensorInfo::GetNumDimensions(), TensorInfo::GetNumElements(), TfLiteParser::GetOutputs(), IConnectableLayer::GetOutputSlot(), TfLiteParser::GetOutputTensorIds(), TensorInfo::GetShape(), armnn::IgnoreUnused(), ActivationDescriptor::m_A, MeanDescriptor::m_Axis, ActivationDescriptor::m_B, StridedSliceDescriptor::m_Begin, StridedSliceDescriptor::m_BeginMask, StridedSliceDescriptor::m_DataLayout, StridedSliceDescriptor::m_EllipsisMask, StridedSliceDescriptor::m_End, StridedSliceDescriptor::m_EndMask, ActivationDescriptor::m_Function, MeanDescriptor::m_KeepDims, StridedSliceDescriptor::m_NewAxisMask, PadDescriptor::m_PadList, StridedSliceDescriptor::m_ShrinkAxisMask, StridedSliceDescriptor::m_Stride, ReshapeDescriptor::m_TargetShape, armnn::NHWC, options, TensorInfo::SetShape(), IOutputSlot::SetTensorInfo(), armnnDeserializer::ToTensorInfo(), and true.

Referenced by BOOST_FIXTURE_TEST_CASE(), and TfLiteParser::~TfLiteParser().

{
    CHECK_VALID_SIZE(squeezeDimsIn.size(), 0, 1, 2, 3, 4);
    std::vector<uint32_t> squeezeDims = squeezeDimsIn;
    static const uint32_t dimensionSequence[] = { 0, 1, 2, 3 };

    if (inputTensorInfo.GetNumDimensions() > 4)
    {
        std::stringstream ss;
        ss << "Input tensor has unexpected number of dimensions:" << inputTensorInfo.GetNumDimensions()
           << " shape:" << inputTensorInfo.GetShape() << " "
           << CHECK_LOCATION().AsString();
        throw ParseException(ss.str());
    }

    if (squeezeDims.empty())
    {
        squeezeDims.assign(dimensionSequence,
                           dimensionSequence+inputTensorInfo.GetNumDimensions());
    }

    std::vector<uint32_t> outputDims;
    for(unsigned int i = 0; i < inputTensorInfo.GetNumDimensions(); i++)
    {
        bool skipSqueeze = (std::find(squeezeDims.begin(), squeezeDims.end(), i) == squeezeDims.end());
        auto currentDimension = inputTensorInfo.GetShape()[i];
        if (skipSqueeze || currentDimension != 1)
        {
            outputDims.push_back(currentDimension);
        }
    }

    if (outputDims.size() > 4)
    {
        std::stringstream ss;
        ss << "Output tensor has unexpected number of dimensions:" << inputTensorInfo.GetNumDimensions()
           << " shape:" << inputTensorInfo.GetShape() << " "
           << CHECK_LOCATION().AsString();
        throw ParseException(ss.str());
    }

    TensorShape outShape = TensorShape(static_cast<unsigned int>(outputDims.size()),
                                       outputDims.data());

    // we need to preserve the tensor type and the quantization data as well
    TensorInfo outTensorInfo = inputTensorInfo;
    outTensorInfo.SetShape(outShape);

    return outTensorInfo;
}

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The documentation for this class was generated from the following files:

• src/armnnTfLiteParser/TfLiteParser.hpp
• src/armnnTfLiteParser/TfLiteParser.cpp