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/**
* Copyright (c) 2023 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <dlfcn.h>
#include <sys/stat.h>
#include "mv_private.h"
#include "machine_learning_exception.h"
#include "object_detection_external.h"
using namespace std;
using namespace mediavision::machine_learning::exception;
namespace mediavision
{
namespace machine_learning
{
typedef IObjectDetection *create_t(ObjectDetectionTaskType task_type);
typedef void destroy_t(IObjectDetection *);
ObjectDetectionExternal::ObjectDetectionExternal(ObjectDetectionTaskType task_type)
: _plugin_handle(), _object_detection_plugin()
{
// TODO. plugin module name will be given by configuration file later.
const char *module_name = "libobject-detection-plugin.so";
// Load external object detection library.
LOGI("lib: %s", module_name);
_plugin_handle = dlopen(module_name, RTLD_NOW);
if (!_plugin_handle)
throw InvalidOperation("Fail to open plugin library.");
create_t *createPlugin = (create_t *) dlsym(_plugin_handle, "createPlugin");
if (createPlugin == NULL) {
dlclose(_plugin_handle);
createPlugin = NULL;
throw InvalidOperation("Fail to get symbol from plugin library.");
}
_object_detection_plugin = createPlugin(task_type);
if (_object_detection_plugin == NULL) {
dlclose(_plugin_handle);
_plugin_handle = NULL;
throw InvalidOperation("Fail to create plugin module.");
}
}
ObjectDetectionExternal::~ObjectDetectionExternal()
{
if (_plugin_handle) {
destroy_t *destroyPlugin = (destroy_t *) dlsym(_plugin_handle, "destroyPlugin");
destroyPlugin(_object_detection_plugin);
dlclose(_plugin_handle);
_object_detection_plugin = nullptr;
_plugin_handle = nullptr;
}
}
void ObjectDetectionExternal::preDestroy()
{
_object_detection_plugin->preDestroy();
}
ObjectDetectionTaskType ObjectDetectionExternal::getTaskType()
{
return _object_detection_plugin->getTaskType();
}
void ObjectDetectionExternal::setUserModel(std::string model_file, std::string meta_file, std::string label_file)
{
_object_detection_plugin->setUserModel(model_file, meta_file, label_file);
}
void ObjectDetectionExternal::setEngineInfo(std::string engine_type, std::string device_type)
{
_object_detection_plugin->setEngineInfo(engine_type, device_type);
}
void ObjectDetectionExternal::getNumberOfEngines(unsigned int *number_of_engines)
{
_object_detection_plugin->getNumberOfEngines(number_of_engines);
}
void ObjectDetectionExternal::getEngineType(unsigned int engine_index, char **engine_type)
{
_object_detection_plugin->getEngineType(engine_index, engine_type);
}
void ObjectDetectionExternal::getNumberOfDevices(const char *engine_type, unsigned int *number_of_devices)
{
_object_detection_plugin->getNumberOfDevices(engine_type, number_of_devices);
}
void ObjectDetectionExternal::getDeviceType(const char *engine_type, const unsigned int device_index,
char **device_type)
{
_object_detection_plugin->getDeviceType(engine_type, device_index, device_type);
}
void ObjectDetectionExternal::configure(std::string configFile)
{
_object_detection_plugin->configure(configFile);
}
void ObjectDetectionExternal::prepare()
{
_object_detection_plugin->prepare();
}
void ObjectDetectionExternal::perform(mv_source_h &mv_src)
{
_object_detection_plugin->perform(mv_src);
}
void ObjectDetectionExternal::performAsync(ObjectDetectionInput &input)
{
_object_detection_plugin->performAsync(input);
}
ObjectDetectionResult &ObjectDetectionExternal::getOutput()
{
_current_result = _object_detection_plugin->getOutput();
return _current_result;
}
ObjectDetectionResult &ObjectDetectionExternal::getOutputCache()
{
return _current_result;
}
}
}
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