--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/thumbnailengine/TneProcessorInc/Parser.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,213 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   Definition of an abstract base class for file format parsers
+*
+*/
+
+
+
+
+#ifndef __PARSER_H__
+#define __PARSER_H__
+
+//  INCLUDES
+#ifndef __E32BASE_H__
+#include <e32base.h>
+#endif
+
+// CONSTANTS
+// MACROS
+// DATA TYPES
+// FUNCTION PROTOTYPES
+// FORWARD DECLARATIONS
+// CLASS DECLARATION
+
+/**
+*  Base class for file format parser
+*  ?other_description_lines
+*/
+class CParser : public CBase
+{
+	
+public: // Constants
+	
+	enum TErrorCode 
+	{
+		EInternalAssertionFailure   = -2200,
+			EParserNotEnoughData = -2201,
+			EParserEndOfStream = -2202,
+			EParserBufferTooSmall = -2203,
+			EParserUnsupportedFormat = -2204,
+			EParserStreamCorrupted = -2205,
+			EParserFailure = -2206
+	};
+
+	// file format
+	enum TFileFormat {
+		EFileFormatUnrecognized = 0,
+	    EFileFormat3GP,
+		EFileFormatMP4
+	};
+	
+	// video format
+	enum TVideoFormat {
+		EVideoFormatNone = 0,
+		EVideoFormatH263Profile0Level10,
+		EVideoFormatH263Profile0Level45,        
+        EVideoFormatMPEG4,
+        EVideoFormatAVCProfileBaseline,
+        EVideoFormatAVCProfileMain,
+        EVideoFormatAVCProfileExtended
+	};
+	
+	
+#ifdef __VIDEOEDIT__
+		enum TProcessingMode
+		{
+			EParseOnly = 1,
+				EParseAndDecode,
+				EDecodeOnly
+		};
+#endif
+		
+public: // Data structures
+	
+	// common stream parameters
+	struct TStreamParameters 
+	{
+		TBool iHaveVideo;  // is there video in the stream ?
+		TFileFormat iFileFormat;  // file format
+		TVideoFormat iVideoFormat;  // video format
+		    
+		TUint iVideoWidth;  // width of a video frame
+		TUint iVideoHeight;   // height of a video frame
+		TInt64 iVideoPicturePeriodNsec;  // one PCF tick period in nanoseconds
+		TUint iVideoIntraFrequency;  // intra frame frequency in stream
+		
+		TUint iStreamLength;  // stream length in milliseconds
+		TUint iVideoLength;
+		
+		TBool iCanSeek;   // TRUE if seeking in file is possible
+		
+		TUint iStreamSize;  // stream size in bytes
+		TUint iStreamBitrate;  // stream average bitrate            
+		
+		TUint iMaxPacketSize; // The maximum media packet size
+		TUint iLogicalChannelNumberVideo; // Logical channel number for video data
+		TUint iReferencePicturesNeeded; // Number of reference pictures
+		// the video decoder needs to store.
+		TUint iNumScalabilityLayers; // The number of different scalability layers used
+		
+		TReal iFrameRate;
+		TUint iVideoTimeScale; 
+		
+	};
+		
+	public: // New functions
+				
+		/**
+		* Parses the stream header.
+		* @param aStreamParameters Stream parameters        
+		*/	
+        
+        virtual TInt ParseHeaderL(TStreamParameters& aStreamParameters) = 0;
+				
+        /**
+        * Resets the parser to initial state.
+        * => If input stream is in a file, rewinds it.
+        * => If input is written to parser, all buffered bytes are flushed
+        * @param aStreamParameters Stream parameters        
+        */
+        virtual TInt Reset() = 0; 				        
+
+        /**
+        * Gets the number of frames in the current clip
+        *
+        * @return Number of frames
+        */
+        inline TInt GetNumberOfFramesInClip() { return iNumberOfFrames; }
+        
+        virtual	TInt GetNumberOfVideoFrames() = 0; 
+
+  //      virtual TInt GetNumberOfFrames() = 0;
+
+        /**
+        * Seeks to intra frame before given time
+        *
+        * @param aStartTime Time in microseconds to seek
+        * @param aIndex Index of the frame at aStartTime, if known. 0 otherwise
+        *
+        * @return Number of frames
+        */
+		virtual	TInt SeekOptimalIntraFrame(TTimeIntervalMicroSeconds aStartTime, TInt aIndex) = 0; 
+
+        /**
+        * Gets the size of video frame at given index
+        *
+        * @param aIndex Index of the frame
+        *
+        * @return Size of frame in bytes
+        */
+        virtual	TInt GetVideoFrameSize(TInt aIndex) = 0;
+
+        /**
+        * Gets the timestamp of video frame at given index
+        *
+        * @param aIndex Index of the frame
+        * @param aTimeStamp Output: timestamp in ticks
+        *
+        * @return Timestamp in milliseconds
+        */
+        virtual	TInt GetVideoFrameStartTime(TInt aIndex, TInt* aTimeStampInTicks) = 0;
+
+        /**
+        * Gets the type of video frame at given index
+        *
+        * @param aIndex Index of the frame
+        *
+        * @return Frame type: 1 = INTRA, 0 = INTER
+        */
+        virtual	TInt8 GetVideoFrameType(TInt aIndex) = 0;			        
+        
+        /**
+        * Gets the start frame index of the current clip                
+        *
+        * @return Frame index
+        */
+        inline TInt GetStartFrameIndex() { return iStartFrameIndex; }
+
+
+    public:  // Data
+
+        // stream parameters
+        TStreamParameters iStreamParameters;
+        // ETrue if parsing this clip for the first time
+        TBool iFirstTimeClipParsing;
+         // number of frames in output clip
+        TInt iOutputNumberOfFrames; 
+
+    protected:  // Data
+
+        // current frame number
+        TInt iFrameNumber;  
+        // number of frames in current clip
+        TInt iNumberOfFrames; 
+        // index of the first included frame
+        TInt iStartFrameIndex;
+		
+    };
+		
+#endif      // __PARSER_H__   
+		
+// End of File