From 005534664e192cf909a11435c4bc4696b1f4c51f Mon Sep 17 00:00:00 2001
From: Richard Burton <richard.burton@arm.com>
Date: Wed, 10 Nov 2021 16:27:14 +0000
Subject: MLECO-2354 MLECO-2355 MLECO-2356: Moving noise reduction to public
 repository

* Use RNNoise model from PMZ
* Add Noise reduction use-case

Signed-off-by: Richard burton <richard.burton@arm.com>
Change-Id: Ia8cc7ef102e22a5ff8bfbd3833594a4905a66057
---
 .../noise_reduction/InferenceTestRNNoise.cc        | 133 +++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 tests/use_case/noise_reduction/InferenceTestRNNoise.cc

(limited to 'tests/use_case/noise_reduction/InferenceTestRNNoise.cc')

diff --git a/tests/use_case/noise_reduction/InferenceTestRNNoise.cc b/tests/use_case/noise_reduction/InferenceTestRNNoise.cc
new file mode 100644
index 0000000..f32a460
--- /dev/null
+++ b/tests/use_case/noise_reduction/InferenceTestRNNoise.cc
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 "hal.h"
+#include "TensorFlowLiteMicro.hpp"
+#include "RNNoiseModel.hpp"
+#include "TestData_noise_reduction.hpp"
+
+#include <catch.hpp>
+#include <random>
+
+namespace test {
+namespace rnnoise {
+
+    bool RunInference(arm::app::Model& model, const std::vector<std::vector<int8_t>> inData)
+    {
+        for (size_t i = 0; i < model.GetNumInputs(); ++i) {
+            TfLiteTensor* inputTensor = model.GetInputTensor(i);
+            REQUIRE(inputTensor);
+            memcpy(inputTensor->data.data, inData[i].data(), inData[i].size());
+        }
+
+        return model.RunInference();
+    }
+
+    bool RunInferenceRandom(arm::app::Model& model)
+    {
+        std::random_device rndDevice;
+        std::mt19937 mersenneGen{rndDevice()};
+        std::uniform_int_distribution<short> dist {-128, 127};
+
+        auto gen = [&dist, &mersenneGen](){
+            return dist(mersenneGen);
+        };
+
+        std::vector<std::vector<int8_t>> randomInput{NUMBER_OF_IFM_FILES};
+        for (size_t i = 0; i < model.GetNumInputs(); ++i) {
+            TfLiteTensor *inputTensor = model.GetInputTensor(i);
+            REQUIRE(inputTensor);
+            randomInput[i].resize(inputTensor->bytes);
+            std::generate(std::begin(randomInput[i]), std::end(randomInput[i]), gen);
+        }
+
+        REQUIRE(RunInference(model, randomInput));
+        return true;
+    }
+
+    TEST_CASE("Running random inference with Tflu and RNNoise Int8", "[RNNoise]")
+    {
+        arm::app::RNNoiseModel model{};
+
+        REQUIRE_FALSE(model.IsInited());
+        REQUIRE(model.Init());
+        REQUIRE(model.IsInited());
+
+        REQUIRE(RunInferenceRandom(model));
+    }
+
+    template<typename T>
+    void TestInference(const std::vector<std::vector<T>> input_goldenFV, const std::vector<std::vector<T>> output_goldenFV, arm::app::Model& model)
+    {
+        for (size_t i = 0; i < model.GetNumInputs(); ++i) {
+            TfLiteTensor* inputTensor = model.GetInputTensor(i);
+            REQUIRE(inputTensor);
+        }
+
+        REQUIRE(RunInference(model, input_goldenFV));
+
+        for (size_t i = 0; i < model.GetNumOutputs(); ++i) {
+            TfLiteTensor *outputTensor = model.GetOutputTensor(i);
+
+            REQUIRE(outputTensor);
+            auto tensorData = tflite::GetTensorData<T>(outputTensor);
+            REQUIRE(tensorData);
+
+            for (size_t j = 0; j < outputTensor->bytes; j++) {
+                REQUIRE(static_cast<int>(tensorData[j]) == static_cast<int>((output_goldenFV[i][j])));
+            }
+        }
+    }
+
+    TEST_CASE("Running inference with Tflu and RNNoise Int8", "[RNNoise]")
+    {
+        std::vector<std::vector<int8_t>> goldenInputFV {NUMBER_OF_IFM_FILES};
+        std::vector<std::vector<int8_t>> goldenOutputFV {NUMBER_OF_OFM_FILES};
+
+        std::array<size_t, NUMBER_OF_IFM_FILES> inputSizes = {IFM_0_DATA_SIZE,
+                                                              IFM_1_DATA_SIZE,
+                                                              IFM_2_DATA_SIZE,
+                                                              IFM_3_DATA_SIZE};
+
+        std::array<size_t, NUMBER_OF_OFM_FILES> outputSizes = {OFM_0_DATA_SIZE,
+                                                               OFM_1_DATA_SIZE,
+                                                               OFM_2_DATA_SIZE,
+                                                               OFM_3_DATA_SIZE,
+                                                               OFM_4_DATA_SIZE};
+
+        for (uint32_t i = 0 ; i < NUMBER_OF_IFM_FILES; ++i) {
+            goldenInputFV[i].resize(inputSizes[i]);
+            std::memcpy(goldenInputFV[i].data(), get_ifm_data_array(i), inputSizes[i]);
+        }
+        for (uint32_t i = 0 ; i < NUMBER_OF_OFM_FILES; ++i) {
+            goldenOutputFV[i].resize(outputSizes[i]);
+            std::memcpy(goldenOutputFV[i].data(), get_ofm_data_array(i), outputSizes[i]);
+        }
+
+        DYNAMIC_SECTION("Executing inference with re-init")
+        {
+            arm::app::RNNoiseModel model{};
+
+            REQUIRE_FALSE(model.IsInited());
+            REQUIRE(model.Init());
+            REQUIRE(model.IsInited());
+
+            TestInference<int8_t>(goldenInputFV, goldenOutputFV, model);
+        }
+    }
+
+}  /* namespace rnnoise */
+}  /* namespace test */
-- 
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