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path: root/mv_machine_learning/landmark_detection/src/mv_facial_landmark.cpp
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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 "mv_private.h"
#include "mv_feature_key.h"
#include "ITask.h"
#include "mv_facial_landmark_internal.h"
#include "FacialLandmarkAdapter.h"
#include "MvMlException.h"
#include "native_capi.h"
#include "landmark_detection_type.h"
#include "Context.h"

#include <new>
#include <unistd.h>
#include <string>
#include <algorithm>

#define TASK_NAME "facial_landmark"

using namespace std;
using namespace mediavision::inference;
using namespace mediavision::common;
using namespace mediavision::machine_learning;
using namespace MediaVision::Common;
using namespace mediavision::machine_learning::exception;

static const char *feature_keys[] = { "http://tizen.org/feature/vision.inference.image",
									  "http://tizen.org/feature/vision.inference.face" };
static const size_t num_keys = sizeof(feature_keys) / sizeof(char *);

int mv_facial_landmark_create(mv_facial_landmark_h *handle)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_NULL_ARG_CHECK(handle);

	MEDIA_VISION_FUNCTION_ENTER();

	mv_facial_landmark_h ctx = nullptr;

	try {
		ctx = machine_learning_native_create();
		machine_learning_native_add(ctx, TASK_NAME, new FacialLandmarkAdapter());
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	*handle = ctx;
	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_destroy(mv_facial_landmark_h handle)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);

	MEDIA_VISION_FUNCTION_ENTER();

	machine_learning_native_destroy(handle);

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_set_model(mv_facial_landmark_h handle, const char *model_name, const char *model_file,
								 const char *meta_file, const char *label_file)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));

	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_INSTANCE_CHECK(model_name);
	MEDIA_VISION_NULL_ARG_CHECK(model_file);
	MEDIA_VISION_NULL_ARG_CHECK(meta_file);
	MEDIA_VISION_NULL_ARG_CHECK(label_file);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_set_model(handle, TASK_NAME, model_file, meta_file, label_file, model_name);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_set_engine(mv_facial_landmark_h handle, const char *backend_type, const char *device_type)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));

	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_NULL_ARG_CHECK(backend_type);
	MEDIA_VISION_NULL_ARG_CHECK(device_type);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_set_engine(handle, TASK_NAME, backend_type, device_type);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_get_engine_count(mv_facial_landmark_h handle, unsigned int *engine_count)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));

	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_NULL_ARG_CHECK(engine_count);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_get_engine_count(handle, TASK_NAME, engine_count);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_get_engine_type(mv_facial_landmark_h handle, const unsigned int engine_index, char **engine_type)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));

	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_NULL_ARG_CHECK(engine_type);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_get_engine_type(handle, TASK_NAME, engine_index, engine_type);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_get_device_count(mv_facial_landmark_h handle, const char *engine_type,
										unsigned int *device_count)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));

	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_NULL_ARG_CHECK(device_count);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_get_device_count(handle, TASK_NAME, engine_type, device_count);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_get_device_type(mv_facial_landmark_h handle, const char *engine_type,
									   const unsigned int device_index, char **device_type)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));

	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_NULL_ARG_CHECK(engine_type);
	MEDIA_VISION_NULL_ARG_CHECK(device_type);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_get_device_type(handle, TASK_NAME, engine_type, device_index, device_type);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_configure(mv_facial_landmark_h handle)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_configure(handle, TASK_NAME);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_prepare(mv_facial_landmark_h handle)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		machine_learning_native_prepare(handle, TASK_NAME);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_inference(mv_facial_landmark_h handle, mv_source_h source)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_INSTANCE_CHECK(source);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		LandmarkDetectionInput input(source);

		machine_learning_native_inference(handle, TASK_NAME, input);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_inference_async(mv_facial_landmark_h handle, mv_source_h source)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_INSTANCE_CHECK(source);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		LandmarkDetectionInput input(source);

		machine_learning_native_inference_async(handle, TASK_NAME, input);
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_get_result_count(mv_facial_landmark_h handle, unsigned long *frame_number,
										unsigned int *result_cnt)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_INSTANCE_CHECK(frame_number);
	MEDIA_VISION_INSTANCE_CHECK(result_cnt);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		auto &result = static_cast<LandmarkDetectionResult &>(machine_learning_native_get_result(handle, TASK_NAME));

		*frame_number = result.frame_number;
		*result_cnt = result.number_of_landmarks;
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}

int mv_facial_landmark_get_position(mv_facial_landmark_h handle, unsigned int index, unsigned int *pos_x,
									unsigned int *pos_y)
{
	MEDIA_VISION_SUPPORT_CHECK(mv_check_feature_key(feature_keys, num_keys, true));
	MEDIA_VISION_INSTANCE_CHECK(handle);
	MEDIA_VISION_INSTANCE_CHECK(pos_x);
	MEDIA_VISION_INSTANCE_CHECK(pos_y);

	MEDIA_VISION_FUNCTION_ENTER();

	try {
		auto &result =
				static_cast<LandmarkDetectionResult &>(machine_learning_native_get_result_cache(handle, TASK_NAME));
		if (index >= result.number_of_landmarks) {
			LOGE("Invalid index(index = %u, result count = %u).", index, result.number_of_landmarks);
			return MEDIA_VISION_ERROR_INVALID_PARAMETER;
		}

		*pos_x = result.x_pos[index];
		*pos_y = result.y_pos[index];
	} catch (const BaseException &e) {
		LOGE("%s", e.what());
		return e.getError();
	}

	MEDIA_VISION_FUNCTION_LEAVE();

	return MEDIA_VISION_ERROR_NONE;
}