1 files changed, 95 insertions, 0 deletions
diff --git a/python/openvino/runtime/common/format_reader/format_reader.h b/python/openvino/runtime/common/format_reader/format_reader.h
new file mode 100644
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--- /dev/null
+++ b/python/openvino/runtime/common/format_reader/format_reader.h
@@ -0,0 +1,95 @@
+// Copyright (C) 2018-2022 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+//
+
+/**
+ * \brief Format reader abstract class implementation
+ * \file format_reader.h
+ */
+#pragma once
+
+#include <iostream>
+#include <memory>
+#include <string>
+#include <vector>
+
+#if defined(_WIN32)
+#    ifdef IMPLEMENT_FORMAT_READER
+#        define FORMAT_READER_API(type) extern "C" __declspec(dllexport) type
+#    else
+#        define FORMAT_READER_API(type) extern "C" type
+#    endif
+#elif (__GNUC__ >= 4)
+#    ifdef IMPLEMENT_FORMAT_READER
+#        define FORMAT_READER_API(type) extern "C" __attribute__((visibility("default"))) type
+#    else
+#        define FORMAT_READER_API(type) extern "C" type
+#    endif
+#else
+#    define FORMAT_READER_API(TYPE) extern "C" TYPE
+#endif
+
+namespace FormatReader {
+/**
+ * \class FormatReader
+ * \brief This is an abstract class for reading input data
+ */
+class Reader {
+protected:
+    /// \brief height
+    size_t _height = 0;
+    /// \brief width
+    size_t _width = 0;
+    /// \brief data
+    std::shared_ptr<unsigned char> _data;
+
+public:
+    virtual ~Reader() = default;
+
+    // langsu: ResizeType is a added by us to support custom resizing functions (only in opencv_wrapper).
+    // format_reader is copied from openvino samples/cpp/common/format_reader/
+    // this might need special care when doing a OV uplift
+    enum ResizeType {
+        RESIZE,  // resize the image to target (height, width)
+        PAD_RESIZE,  // pad the image into a squared image and then resize the image to target (height, width)
+    };
+
+    /**
+     * \brief Get width
+     * @return width
+     */
+    size_t width() const {
+        return _width;
+    }
+
+    /**
+     * \brief Get height
+     * @return height
+     */
+    size_t height() const {
+        return _height;
+    }
+
+    /**
+     * \brief Get input data ptr
+     * @return shared pointer with input data
+     * @In case of using OpenCV, parameters width and height will be used for image resizing
+     */
+    // langsu: ResizeType is a added by us to support custom resizing functions (only in opencv_wrapper).
+    // Needs special care when doing a OV uplift
+    virtual std::shared_ptr<unsigned char> getData(size_t width = 0, size_t height = 0,
+                                                   ResizeType resize_type = ResizeType::RESIZE) = 0;
+
+    /**
+     * \brief Get size
+     * @return size
+     */
+    virtual size_t size() const = 0;
+};
+}  // namespace FormatReader
+
+/**
+ * \brief Function for create reader
+ * @return FormatReader pointer
+ */
+FORMAT_READER_API(FormatReader::Reader*) CreateFormatReader(const char* filename);