Fix a bug for the video sequence callback function (#31)

[ROCm/rocdecode commit: 874bd59d89]

projects/rocdecode/src/parser/hevc_parser.cpp

@@ -243,7 +243,7 @@ void HEVCVideoParser::FillSeqCallbackFn(SpsData* sps_data) {
     video_format_params_.seqhdr_data_length = 0;
 
     // callback function with RocdecVideoFormat params filled out
-    pfn_sequece_cb_ = PFNVIDSEQUENCECALLBACK(&video_format_params_);
+    pfn_sequece_cb_(parser_params_.pUserData, &video_format_params_);
 }
 
 bool HEVCVideoParser::ParseFrameData(const uint8_t* p_stream, uint32_t frame_data_size) {

projects/rocdecode/src/parser/roc_video_parser.cpp

@@ -44,7 +44,7 @@ rocDecStatus RocVideoParser::Initialize(RocdecParserParams *pParams) {
     pfn_display_picture_cb_ = pParams->pfnDisplayPicture;      /**< Called whenever a picture is ready to be displayed (display order)  */
     pfn_get_sei_message_cb_ = pParams->pfnGetSEIMsg;       /**< Called when all SEI messages are parsed for particular frame        */
 
-    parser_params_ = pParams;
+    parser_params_ = *pParams;
 
     return ROCDEC_SUCCESS;
 }

projects/rocdecode/src/parser/roc_video_parser.h

@@ -33,16 +33,16 @@ THE SOFTWARE.
 class RocVideoParser {
 public:
     RocVideoParser();    // default constructor
-    RocVideoParser(RocdecParserParams *pParams) : parser_params_(pParams) {};
+    RocVideoParser(RocdecParserParams *pParams) : parser_params_(*pParams) {};
     virtual ~RocVideoParser() = default ;
-    virtual void SetParserParams(RocdecParserParams *pParams) { parser_params_ = pParams; };
-    RocdecParserParams *GetParserParams() {return parser_params_;};
+    virtual void SetParserParams(RocdecParserParams *pParams) { parser_params_ = *pParams; };
+    RocdecParserParams *GetParserParams() {return &parser_params_;};
     virtual rocDecStatus Initialize(RocdecParserParams *pParams);
     virtual rocDecStatus ParseVideoData(RocdecSourceDataPacket *pData) = 0;     // pure virtual: implemented by derived class
     virtual rocDecStatus UnInitialize() = 0;     // pure virtual: implemented by derived class
 
 protected:
-    RocdecParserParams *parser_params_ = nullptr;
+    RocdecParserParams parser_params_ = {};
     /**
      * @brief callback function pointers for the parser
      *