MLECO-3079: Implement image classification API

All ML related work for image classification seperated out and accessed via new Runner
Further work to improve profiling integration to be done in follow up ticket: MLECO-3154

Signed-off-by: Richard Burton <richard.burton@arm.com>
Change-Id: I0fe0550c932241a2d335a560ecb7abc329c934e9

1 files changed, 62 insertions, 0 deletions

diff --git a/source/application/main/include/UseCaseCommonUtils.hpp b/source/application/main/include/UseCaseCommonUtils.hpp
index 9b6d550..f79f6ed 100644
--- a/source/application/main/include/UseCaseCommonUtils.hpp
+++ b/source/application/main/include/UseCaseCommonUtils.hpp
@@ -24,6 +24,7 @@
 #include "UseCaseHandler.hpp"       /* Handlers for different user options. */
 #include "Classifier.hpp"           /* Classifier. */
 #include "InputFiles.hpp"
+#include "BaseProcessing.hpp"
 
 
 void DisplayCommonMenu();
@@ -107,6 +108,67 @@ namespace app {
      **/
     bool ListFilesHandler(ApplicationContext& ctx);
 
+    /**
+     * @brief   Use case runner class that will handle calling pre-processing,
+     *          inference and post-processing.
+     *          After constructing an instance of this class the user can call
+     *          PreProcess(), RunInference() and PostProcess() to perform inference.
+     */
+    class UseCaseRunner {
+
+    private:
+        BasePreProcess* m_preProcess;
+        BasePostProcess* m_postProcess;
+        Model* m_model;
+
+    public:
+        explicit UseCaseRunner(BasePreProcess* preprocess, BasePostProcess* postprocess, Model* model)
+        : m_preProcess{preprocess},
+          m_postProcess{postprocess},
+          m_model{model}
+          {};
+
+        /**
+         * @brief       Runs pre-processing as defined by PreProcess object within the runner.
+         *              Templated for the input data type.
+         * @param[in]   inputData    Pointer to the data that inference will be performed on.
+         * @param[in]   inputSize    Size of the input data that inference will be performed on.
+         * @return      true if successful, false otherwise.
+         **/
+        template<typename T>
+        bool PreProcess(T* inputData, size_t inputSize) {
+            if (!this->m_preProcess->DoPreProcess(inputData, inputSize)) {
+                printf_err("Pre-processing failed.");
+                return false;
+            }
+            return true;
+        }
+
+        /**
+         * @brief       Runs inference with the Model object within the runner.
+         * @return      true if successful, false otherwise.
+         **/
+        bool RunInference() {
+            if (!this->m_model->RunInference()) {
+                printf_err("Inference failed.");
+                return false;
+            }
+            return true;
+        }
+
+        /**
+         * @brief       Runs post-processing as defined by PostProcess object within the runner.
+         * @return      true if successful, false otherwise.
+         **/
+        bool PostProcess() {
+            if (!this->m_postProcess->DoPostProcess()) {
+                printf_err("Post-processing failed.");
+                return false;
+            }
+            return true;
+        }
+    };
+
 } /* namespace app */
 } /* namespace arm */