MLECO-3183: Refactoring application sources

Platform agnostic application sources are moved into application
api module with their own independent CMake projects.

Changes for MLECO-3080 also included - they create CMake projects
individial API's (again, platform agnostic) that dependent on the
common logic. The API for KWS_API "joint" API has been removed and
now the use case relies on individual KWS, and ASR API libraries.

Change-Id: I1f7748dc767abb3904634a04e0991b74ac7b756d
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/source/application/api/use_case/kws/include/MicroNetKwsModel.hpp b/source/application/api/use_case/kws/include/MicroNetKwsModel.hpp
new file mode 100644
index 0000000..3d2f3de
--- /dev/null
+++ b/source/application/api/use_case/kws/include/MicroNetKwsModel.hpp
@@ -0,0 +1,63 @@
+/*
+ * 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.
+ */
+#ifndef KWS_MICRONETMODEL_HPP
+#define KWS_MICRONETMODEL_HPP
+
+#include "Model.hpp"
+
+namespace arm {
+namespace app {
+namespace kws {
+    extern const int g_FrameLength;
+    extern const int g_FrameStride;
+    extern const float g_ScoreThreshold;
+    extern const uint32_t g_NumMfcc;
+    extern const uint32_t g_NumAudioWins;
+} /* namespace kws */
+} /* namespace app */
+} /* namespace arm */
+
+namespace arm {
+namespace app {
+
+    class MicroNetKwsModel : public Model {
+    public:
+        /* Indices for the expected model - based on input and output tensor shapes */
+        static constexpr uint32_t ms_inputRowsIdx = 1;
+        static constexpr uint32_t ms_inputColsIdx = 2;
+        static constexpr uint32_t ms_outputRowsIdx = 2;
+        static constexpr uint32_t ms_outputColsIdx = 3;
+
+    protected:
+        /** @brief   Gets the reference to op resolver interface class. */
+        const tflite::MicroOpResolver& GetOpResolver() override;
+
+        /** @brief   Adds operations to the op resolver instance. */
+        bool EnlistOperations() override;
+
+    private:
+        /* Maximum number of individual operations that can be enlisted. */
+        static constexpr int ms_maxOpCnt = 7;
+
+        /* A mutable op resolver instance. */
+        tflite::MicroMutableOpResolver<ms_maxOpCnt> m_opResolver;
+    };
+
+} /* namespace app */
+} /* namespace arm */
+
+#endif /* KWS_MICRONETMODEL_HPP */