gstreamer/ext/onnx/gstonnxclient.cpp

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/*
* GStreamer gstreamer-onnxclient
* Copyright (C) 2021 Collabora Ltd
*
* gstonnxclient.cpp
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "gstonnxclient.h"
#include <providers/cpu/cpu_provider_factory.h>
#ifdef GST_ML_ONNX_RUNTIME_HAVE_CUDA
#include <providers/cuda/cuda_provider_factory.h>
#endif
#include <exception>
#include <fstream>
#include <iostream>
#include <limits>
#include <numeric>
#include <cmath>
#include <sstream>
namespace GstOnnxNamespace
{
template < typename T >
std::ostream & operator<< (std::ostream & os, const std::vector < T > &v)
{
os << "[";
for (size_t i = 0; i < v.size (); ++i)
{
os << v[i];
if (i != v.size () - 1)
{
os << ", ";
}
}
os << "]";
return os;
}
GstMlOutputNodeInfo::GstMlOutputNodeInfo (void):index
(GST_ML_NODE_INDEX_DISABLED),
type (ONNXTensorElementDataType::ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT)
{
}
GstOnnxClient::GstOnnxClient ():session (nullptr),
width (0),
height (0),
channels (0),
dest (nullptr),
m_provider (GST_ONNX_EXECUTION_PROVIDER_CPU),
inputImageFormat (GST_ML_MODEL_INPUT_IMAGE_FORMAT_HWC),
fixedInputImageSize (true)
{
for (size_t i = 0; i < GST_ML_OUTPUT_NODE_NUMBER_OF; ++i)
outputNodeIndexToFunction[i] = (GstMlOutputNodeFunction) i;
}
GstOnnxClient::~GstOnnxClient ()
{
delete session;
delete[]dest;
}
Ort::Env & GstOnnxClient::getEnv (void)
{
static Ort::Env env (OrtLoggingLevel::ORT_LOGGING_LEVEL_WARNING,
"GstOnnxNamespace");
return env;
}
int32_t GstOnnxClient::getWidth (void)
{
return width;
}
int32_t GstOnnxClient::getHeight (void)
{
return height;
}
bool GstOnnxClient::isFixedInputImageSize (void)
{
return fixedInputImageSize;
}
std::string GstOnnxClient::getOutputNodeName (GstMlOutputNodeFunction nodeType)
{
switch (nodeType) {
case GST_ML_OUTPUT_NODE_FUNCTION_DETECTION:
return "detection";
break;
case GST_ML_OUTPUT_NODE_FUNCTION_BOUNDING_BOX:
return "bounding box";
break;
case GST_ML_OUTPUT_NODE_FUNCTION_SCORE:
return "score";
break;
case GST_ML_OUTPUT_NODE_FUNCTION_CLASS:
return "label";
break;
};
return "";
}
void GstOnnxClient::setInputImageFormat (GstMlModelInputImageFormat format)
{
inputImageFormat = format;
}
GstMlModelInputImageFormat GstOnnxClient::getInputImageFormat (void)
{
return inputImageFormat;
}
std::vector < const char *>GstOnnxClient::getOutputNodeNames (void)
{
return outputNames;
}
void GstOnnxClient::setOutputNodeIndex (GstMlOutputNodeFunction node,
gint index)
{
g_assert (index < GST_ML_OUTPUT_NODE_NUMBER_OF);
outputNodeInfo[node].index = index;
if (index != GST_ML_NODE_INDEX_DISABLED)
outputNodeIndexToFunction[index] = node;
}
gint GstOnnxClient::getOutputNodeIndex (GstMlOutputNodeFunction node)
{
return outputNodeInfo[node].index;
}
void GstOnnxClient::setOutputNodeType (GstMlOutputNodeFunction node,
ONNXTensorElementDataType type)
{
outputNodeInfo[node].type = type;
}
ONNXTensorElementDataType
GstOnnxClient::getOutputNodeType (GstMlOutputNodeFunction node)
{
return outputNodeInfo[node].type;
}
bool GstOnnxClient::hasSession (void)
{
return session != nullptr;
}
bool GstOnnxClient::createSession (std::string modelFile,
GstOnnxOptimizationLevel optim, GstOnnxExecutionProvider provider)
{
if (session)
return true;
GraphOptimizationLevel onnx_optim;
switch (optim) {
case GST_ONNX_OPTIMIZATION_LEVEL_DISABLE_ALL:
onnx_optim = GraphOptimizationLevel::ORT_DISABLE_ALL;
break;
case GST_ONNX_OPTIMIZATION_LEVEL_ENABLE_BASIC:
onnx_optim = GraphOptimizationLevel::ORT_ENABLE_BASIC;
break;
case GST_ONNX_OPTIMIZATION_LEVEL_ENABLE_EXTENDED:
onnx_optim = GraphOptimizationLevel::ORT_ENABLE_EXTENDED;
break;
case GST_ONNX_OPTIMIZATION_LEVEL_ENABLE_ALL:
onnx_optim = GraphOptimizationLevel::ORT_ENABLE_ALL;
break;
default:
onnx_optim = GraphOptimizationLevel::ORT_ENABLE_EXTENDED;
break;
};
Ort::SessionOptions sessionOptions;
// for debugging
//sessionOptions.SetIntraOpNumThreads (1);
sessionOptions.SetGraphOptimizationLevel (onnx_optim);
m_provider = provider;
switch (m_provider) {
case GST_ONNX_EXECUTION_PROVIDER_CUDA:
#ifdef GST_ML_ONNX_RUNTIME_HAVE_CUDA
Ort::ThrowOnError (OrtSessionOptionsAppendExecutionProvider_CUDA
(sessionOptions, 0));
#else
return false;
#endif
break;
default:
break;
};
session = new Ort::Session (getEnv (), modelFile.c_str (), sessionOptions);
auto inputTypeInfo = session->GetInputTypeInfo (0);
std::vector < int64_t > inputDims =
inputTypeInfo.GetTensorTypeAndShapeInfo ().GetShape ();
if (inputImageFormat == GST_ML_MODEL_INPUT_IMAGE_FORMAT_HWC) {
height = inputDims[1];
width = inputDims[2];
channels = inputDims[3];
} else {
channels = inputDims[1];
height = inputDims[2];
width = inputDims[3];
}
fixedInputImageSize = width > 0 && height > 0;
GST_DEBUG ("Number of Output Nodes: %d", (gint) session->GetOutputCount ());
Ort::AllocatorWithDefaultOptions allocator;
GST_DEBUG ("Input name: %s", session->GetInputName (0, allocator));
for (size_t i = 0; i < session->GetOutputCount (); ++i) {
auto output_name = session->GetOutputName (i, allocator);
outputNames.push_back (output_name);
auto type_info = session->GetOutputTypeInfo (i);
auto tensor_info = type_info.GetTensorTypeAndShapeInfo ();
if (i < GST_ML_OUTPUT_NODE_NUMBER_OF) {
auto function = outputNodeIndexToFunction[i];
outputNodeInfo[function].type = tensor_info.GetElementType ();
}
}
return true;
}
std::vector < GstMlBoundingBox > GstOnnxClient::run (uint8_t * img_data,
GstVideoMeta * vmeta, std::string labelPath, float scoreThreshold)
{
auto type = getOutputNodeType (GST_ML_OUTPUT_NODE_FUNCTION_CLASS);
return (type ==
ONNXTensorElementDataType::ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT) ?
doRun < float >(img_data, vmeta, labelPath, scoreThreshold)
: doRun < int >(img_data, vmeta, labelPath, scoreThreshold);
}
void GstOnnxClient::parseDimensions (GstVideoMeta * vmeta)
{
int32_t newWidth = fixedInputImageSize ? width : vmeta->width;
int32_t newHeight = fixedInputImageSize ? height : vmeta->height;
if (!dest || width * height < newWidth * newHeight) {
delete[] dest;
dest = new uint8_t[newWidth * newHeight * channels];
}
width = newWidth;
height = newHeight;
}
template < typename T > std::vector < GstMlBoundingBox >
GstOnnxClient::doRun (uint8_t * img_data, GstVideoMeta * vmeta,
std::string labelPath, float scoreThreshold)
{
std::vector < GstMlBoundingBox > boundingBoxes;
if (!img_data)
return boundingBoxes;
parseDimensions (vmeta);
Ort::AllocatorWithDefaultOptions allocator;
auto inputName = session->GetInputName (0, allocator);
auto inputTypeInfo = session->GetInputTypeInfo (0);
std::vector < int64_t > inputDims =
inputTypeInfo.GetTensorTypeAndShapeInfo ().GetShape ();
inputDims[0] = 1;
if (inputImageFormat == GST_ML_MODEL_INPUT_IMAGE_FORMAT_HWC) {
inputDims[1] = height;
inputDims[2] = width;
} else {
inputDims[2] = height;
inputDims[3] = width;
}
std::ostringstream buffer;
buffer << inputDims;
GST_DEBUG ("Input dimensions: %s", buffer.str ().c_str ());
// copy video frame
uint8_t *srcPtr[3] = { img_data, img_data + 1, img_data + 2 };
uint32_t srcSamplesPerPixel = 3;
switch (vmeta->format) {
case GST_VIDEO_FORMAT_RGBA:
srcSamplesPerPixel = 4;
break;
case GST_VIDEO_FORMAT_BGRA:
srcSamplesPerPixel = 4;
srcPtr[0] = img_data + 2;
srcPtr[1] = img_data + 1;
srcPtr[2] = img_data + 0;
break;
case GST_VIDEO_FORMAT_ARGB:
srcSamplesPerPixel = 4;
srcPtr[0] = img_data + 1;
srcPtr[1] = img_data + 2;
srcPtr[2] = img_data + 3;
break;
case GST_VIDEO_FORMAT_ABGR:
srcSamplesPerPixel = 4;
srcPtr[0] = img_data + 3;
srcPtr[1] = img_data + 2;
srcPtr[2] = img_data + 1;
break;
case GST_VIDEO_FORMAT_BGR:
srcPtr[0] = img_data + 2;
srcPtr[1] = img_data + 1;
srcPtr[2] = img_data + 0;
break;
default:
break;
}
size_t destIndex = 0;
uint32_t stride = vmeta->stride[0];
if (inputImageFormat == GST_ML_MODEL_INPUT_IMAGE_FORMAT_HWC) {
for (int32_t j = 0; j < height; ++j) {
for (int32_t i = 0; i < width; ++i) {
for (int32_t k = 0; k < channels; ++k) {
dest[destIndex++] = *srcPtr[k];
srcPtr[k] += srcSamplesPerPixel;
}
}
// correct for stride
for (uint32_t k = 0; k < 3; ++k)
srcPtr[k] += stride - srcSamplesPerPixel * width;
}
} else {
size_t frameSize = width * height;
uint8_t *destPtr[3] = { dest, dest + frameSize, dest + 2 * frameSize };
for (int32_t j = 0; j < height; ++j) {
for (int32_t i = 0; i < width; ++i) {
for (int32_t k = 0; k < channels; ++k) {
destPtr[k][destIndex] = *srcPtr[k];
srcPtr[k] += srcSamplesPerPixel;
}
destIndex++;
}
// correct for stride
for (uint32_t k = 0; k < 3; ++k)
srcPtr[k] += stride - srcSamplesPerPixel * width;
}
}
const size_t inputTensorSize = width * height * channels;
auto memoryInfo =
Ort::MemoryInfo::CreateCpu (OrtAllocatorType::OrtArenaAllocator,
OrtMemType::OrtMemTypeDefault);
std::vector < Ort::Value > inputTensors;
inputTensors.push_back (Ort::Value::CreateTensor < uint8_t > (memoryInfo,
dest, inputTensorSize, inputDims.data (), inputDims.size ()));
std::vector < const char *>inputNames { inputName };
std::vector < Ort::Value > modelOutput = session->Run (Ort::RunOptions { nullptr},
inputNames.data (),
inputTensors.data (), 1, outputNames.data (), outputNames.size ());
auto numDetections =
modelOutput[getOutputNodeIndex
(GST_ML_OUTPUT_NODE_FUNCTION_DETECTION)].GetTensorMutableData < float >();
auto bboxes =
modelOutput[getOutputNodeIndex
(GST_ML_OUTPUT_NODE_FUNCTION_BOUNDING_BOX)].GetTensorMutableData < float >();
auto scores =
modelOutput[getOutputNodeIndex
(GST_ML_OUTPUT_NODE_FUNCTION_SCORE)].GetTensorMutableData < float >();
T *labelIndex = nullptr;
if (getOutputNodeIndex (GST_ML_OUTPUT_NODE_FUNCTION_CLASS) !=
GST_ML_NODE_INDEX_DISABLED) {
labelIndex =
modelOutput[getOutputNodeIndex
(GST_ML_OUTPUT_NODE_FUNCTION_CLASS)].GetTensorMutableData < T > ();
}
if (labels.empty () && !labelPath.empty ())
labels = ReadLabels (labelPath);
for (int i = 0; i < numDetections[0]; ++i) {
if (scores[i] > scoreThreshold) {
std::string label = "";
if (labelIndex && !labels.empty ())
label = labels[labelIndex[i] - 1];
auto score = scores[i];
auto y0 = bboxes[i * 4] * height;
auto x0 = bboxes[i * 4 + 1] * width;
auto bheight = bboxes[i * 4 + 2] * height - y0;
auto bwidth = bboxes[i * 4 + 3] * width - x0;
boundingBoxes.push_back (GstMlBoundingBox (label, score, x0, y0, bwidth,
bheight));
}
}
return boundingBoxes;
}
std::vector < std::string >
GstOnnxClient::ReadLabels (const std::string & labelsFile)
{
std::vector < std::string > labels;
std::string line;
std::ifstream fp (labelsFile);
while (std::getline (fp, line))
labels.push_back (line);
return labels;
}
}