parser high level class implementation (#10)

* rocDecode api defintions added for decoder and parser

* addressed review comments and changed struct names to CamelCase

* minot reformatting

* parser high level class implementation

src/parser/hevc_parser.cpp

@@ -0,0 +1,52 @@
+/*
+Copyright (c) 2023 - 2023 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include "hevc_parser.h"
+
+/**
+ * @brief Constructs a new HEVCParser object
+ * 
+ */
+HEVCVideoParser::HEVCVideoParser() {
+
+}
+
+/**
+ * @brief Function to initialize any hevc parser related members
+ * 
+ * @return rocDecStatus 
+ */
+rocDecStatus HEVCVideoParser::Initialize(RocdecParserParams *pParams) {
+        //todo::
+    RocVideoParser::Initialize(pParams);
+    return ROCDEC_NOT_IMPLEMENTED;
+}
+
+/**
+ * @brief Function to Parse video data: Typically called from application when a demuxed picture is ready to be parsed
+ * 
+ * @param pData: IN: pointer to demuxed data packet
+ * @return rocDecStatus 
+ */
+rocDecStatus HEVCVideoParser::ParseVideoData(RocdecSourceDataPacket *pData) {
+    return ROCDEC_NOT_IMPLEMENTED;
+}