From 23c26277086c78704a17f0dae86da947816320c0 Mon Sep 17 00:00:00 2001
From: George Gekov <george.gekov@arm.com>
Date: Mon, 16 Aug 2021 11:32:10 +0100
Subject: MLECO-2079 Adding the C++ KWS example

Signed-off-by: Eanna O Cathain <eanna.ocathain@arm.com>
Change-Id: I81899bbfaada32f478c2e2fc6441eabb94d8d0fc
---
 samples/common/include/Audio/AudioCapture.hpp | 57 +++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 samples/common/include/Audio/AudioCapture.hpp

(limited to 'samples/common/include/Audio/AudioCapture.hpp')

diff --git a/samples/common/include/Audio/AudioCapture.hpp b/samples/common/include/Audio/AudioCapture.hpp
new file mode 100644
index 0000000000..898bf911f4
--- /dev/null
+++ b/samples/common/include/Audio/AudioCapture.hpp
@@ -0,0 +1,57 @@
+//
+// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <string>
+#include <iostream>
+#include <cmath>
+#include <vector>
+#include <exception>
+
+#include "SlidingWindow.hpp"
+
+namespace audio
+{
+
+/**
+* @brief Class used to capture the audio data loaded from file, and to provide a method of
+ * extracting correctly positioned and appropriately sized audio windows
+*
+*/
+    class AudioCapture
+    {
+    public:
+
+        SlidingWindow<const float> m_window;
+
+        /**
+        * @brief Default constructor
+        */
+        AudioCapture() = default;
+
+        /**
+        * @brief Function to load the audio data captured from the
+         * input file to memory.
+        */
+        static std::vector<float> LoadAudioFile(std::string filePath);
+
+        /**
+        * @brief Function to initialize the sliding window. This will set its position in memory, its
+         * window size and its stride.
+        */
+        void InitSlidingWindow(float* data, size_t dataSize, int minSamples, size_t stride);
+
+        /**
+        * Checks whether there is another block of audio in memory to read
+        */
+        bool HasNext();
+
+        /**
+        * Retrieves the next block of audio if its available
+        */
+        std::vector<float> Next();
+    };
+} // namespace audio
\ No newline at end of file
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