sl@0: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Constants and structs specific to Mpeg4 Visual.  See the DevVideo specs for more details.
sl@0: // 
sl@0: //
sl@0: 
sl@0: #ifndef __DEVVIDEO_MPEG4VISUAL_H__
sl@0: #define __DEVVIDEO_MPEG4VISUAL_H__
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <mmf/devvideo/h263.h>
sl@0: 
sl@0: /**
sl@0: Specifies the picture type.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: enum TMPEG4VisualVOPType
sl@0:     {
sl@0: 	/**
sl@0: 	An Intra-coded (I) VOP is coded using information only from itself.
sl@0: 	*/
sl@0:     EMPEG4VisualVOPTypeI = 0x01,
sl@0: 
sl@0: 	/**
sl@0: 	A Predictive-coded (P) VOP is a VOP which is coded using motion compensated prediction from a 
sl@0: 	past reference VOP.
sl@0: 	*/
sl@0:     EMPEG4VisualVOPTypeP = 0x02,
sl@0: 
sl@0: 	/**
sl@0: 	A Bidirectionally predictive-coded (B) VOP is a VOP which is coded using motion compensated 
sl@0: 	prediction from a past and/or future reference VOP(s).
sl@0: 	*/
sl@0:     EMPEG4VisualVOPTypeB = 0x04,
sl@0: 
sl@0: 	/**
sl@0: 	A sprite (S) VOP is a VOP for a sprite object or a VOP which is coded using prediction based on
sl@0: 	global motion compensation from a past reference VOP.
sl@0: 	*/
sl@0:     EMPEG4VisualVOPTypeS = 0x08
sl@0:     };
sl@0: 
sl@0: /**
sl@0: Specifies the MPEG-4 Visual header types.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: enum TMPEG4VisualHeaderType
sl@0:     {
sl@0: 	/**
sl@0: 	Visual Object Sequence Header.
sl@0: 	*/
sl@0:     EMPEG4VisualHeaderSequence = 0x01,
sl@0: 
sl@0: 	/**
sl@0: 	Visual Object Header.
sl@0: 	*/
sl@0:     EMPEG4VisualHeaderObject   = 0x02,
sl@0: 
sl@0: 	/**
sl@0: 	Video Object Layer Header.
sl@0: 	*/
sl@0:     EMPEG4VisualHeaderVOL      = 0x04,
sl@0: 
sl@0: 	/**
sl@0: 	Group of Video Object Plane Header.
sl@0: 	*/
sl@0:     EMPEG4VisualHeaderGOV      = 0x08,
sl@0: 
sl@0: 	/**
sl@0: 	Video Object Plane Header.
sl@0: 	*/
sl@0:     EMPEG4VisualHeaderVOP      = 0x10
sl@0:     };
sl@0: 
sl@0: 
sl@0: /**
sl@0: Object sequence header.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualObjectSequenceHeader
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Used to signal the profile and level identification according to Table G-1 of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iProfileLevel;
sl@0: 
sl@0: 	/**
sl@0: 	Contains the user_data bytes, if any, that are directly included in the VideoObjectSequence() 
sl@0: 	syntax structure (subclause 6.2.2 of MPEG-4 Visual), in bitstream order. The pointer must remain
sl@0: 	valid as long as the object it belongs to is being processed by the client (for playback) or MSL
sl@0: 	video subsystem (for recording).
sl@0: 	*/
sl@0:     TPtrC8 iUserData;
sl@0:     };
sl@0: 
sl@0: /**
sl@0: Object header.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualObjectHeader
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Identifies the version number of the visual object as specified in the semantics of 
sl@0: 	visual_object_verid syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iVisualObjectVerid;
sl@0: 
sl@0: 	/**
sl@0: 	Specifies the priority of the visual object as specified in the semantics of 
sl@0: 	visual_object_priority syntax element of MPEG-4 Visual. If the visual_object_priority syntax 
sl@0: 	element is not present in the bitstream, iVisualObjectPriority shall be equal to 0.
sl@0: 	*/
sl@0:     TUint iVisualObjectPriority;
sl@0: 
sl@0: 	/**
sl@0: 	Identifies the type of the visual object as specified in the semantics of 
sl@0: 	visual_object_type syntax element of MPEG-4 Visual. HW devices according to this specification 
sl@0: 	are required to set iVisualObjectType to 1 (to indicate "video ID").
sl@0: 	*/
sl@0:     TUint iVisualObjectType;
sl@0: 
sl@0: 	/**
sl@0: 	Uniquely identifies the video object. The value of iVideoObjectId shall be the same as the 
sl@0: 	value of the video_object_id syntax element specified in MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iVideoObjectId;
sl@0: 
sl@0: 	/**
sl@0: 	Contains the user_data bytes, if any, that are directly included in the VideoObject() syntax 
sl@0: 	structure (subclause 6.2.2 of MPEG-4 Visual), in bitstream order. The pointer must remain valid
sl@0: 	as long as the object it belongs to is being processed by the client (for playback) or MSL video
sl@0: 	subsystem (for recording).
sl@0: 	*/
sl@0:     TPtrC8 iUserData;
sl@0:     };
sl@0: 
sl@0: /**
sl@0: Mpeg4 Visual VBV parameters.
sl@0: 
sl@0: If the syntax elements that are used to derive the values of the class member variables are not 
sl@0: present in the bitstream, the variable values shall be set to default values as specified in 
sl@0: Annex D of MPEG-4 Visual.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualVbvParams
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Specifies the instantaneous video object layer channel bit rate in bits per second. Shall be set
sl@0: 	to ((first_half_bit_rate << 15) + latter_half_bit_rate) * 400, where the values of 
sl@0: 	first_half_bit_rate and latter_half_bit_rate are conveyed in the VideoObjectLayer syntax 
sl@0: 	structure of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TInt64 iBitRate;
sl@0: 
sl@0: 	/**
sl@0: 	Specifies the VBV buffer size in bytes. Shall be set to 
sl@0: 	((first_half_vbv_buffer_size) << 3) + latter_half_vbv_buffer_size) * 2048, 
sl@0: 	where the values of first_half_vbv_buffer_size and latter_half_vbv_buffer_size are conveyed in 
sl@0: 	the VideoObjectLayer syntax structure of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint32 iVbvBufferSize;
sl@0: 
sl@0: 	/**
sl@0: 	Specifies VBV occupancy in bytes just before the removal of the first VOP following the VOL 
sl@0: 	header. The purpose for the quantity is to provide the initial condition for VBV buffer fullness. 
sl@0: 	Shall be set to ((first_half_vbv_occupancy) << 15) + latter_half_vbv_occupancy) * 2048, where
sl@0: 	the values of first_half_vbv_occupancy and latter_half_vbv_occupancy are conveyed in the 
sl@0: 	VideoObjectLayer syntax structure of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint32 iVbvOccupancy;
sl@0:     };
sl@0: 
sl@0: 
sl@0: /**
sl@0: Video object layer header.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualVOLHeader
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Uniquely identifies the video object layer. The value of iVideoObjectLayerId shall be the same
sl@0: 	as the value of the video_object_layer_id syntax element specified in MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iVideoObjectLayerId;
sl@0: 
sl@0: 	/**
sl@0: 	iShortVideoHeader equal to ETrue indicates that the associated elementary stream conforms to
sl@0: 	ITU-T Recommendation H.263 (without optional coding modes).  The value of iShortVideoHeader 
sl@0: 	shall be equal to the value of the short_video_header flag of MPEG-4 Visual. 
sl@0: 	*/
sl@0:     TBool iShortVideoHeader;
sl@0: 
sl@0: 	/**
sl@0: 	iRandomAccessibleVOL equal to ETrue indicates that every VOP in this VOL is individually
sl@0: 	decodable. The value of iRandomAccessibleVOL shall be equal to the value of the 
sl@0: 	random_accessible_vol flag of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TBool iRandomAccessibleVOL;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates the object type as specified in Table 6-10 of MPEG-4 Visual and constrains the 
sl@0: 	associated elementary stream to use tools from the indicated object type. HW devices according
sl@0: 	to this specification are required to set iVideoObjectTypeIndication to 1 (to indicate Simple
sl@0: 	Object Type).
sl@0: 	*/
sl@0:     TUint iVideoObjectTypeIndication;
sl@0: 
sl@0: 	/**
sl@0: 	Identifies the version number of the video object layer as specified in the semantics of 
sl@0: 	video_object_layer_verid syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iVideoObjectLayerVerid;
sl@0: 
sl@0: 	/**
sl@0: 	*/
sl@0:     TUint iVideoObjectLayerPriority;
sl@0: 
sl@0: 	/**
sl@0: 	Specifies the priority of the video object layer as specified in the semantics of 
sl@0: 	video_object_layer_priority syntax element of MPEG-4 Visual. If the video_object_layer_priority
sl@0: 	syntax element is not present in the bitstream, iVideoObjectLayerPriority shall be equal to 0.
sl@0: 	*/
sl@0:     TUint iAspectRatioNum;
sl@0: 
sl@0: 	/**
sl@0: 	Pixel aspect ratio numerator and denominator respectively. The pixel aspect ratio is defined as 
sl@0: 	iAspectRatioNum/iAspectRatioDenom, where the values are positive integers and relatively prime. 
sl@0: 	These values shall be set according to the value of aspect_ratio_info, par_width (if present), 
sl@0: 	and par_height (if present) syntax elements in the VideoObjectLayer() syntax structure of MPEG-4
sl@0: 	Visual.
sl@0: 	*/
sl@0:     TUint iAspectRatioDenom;
sl@0: 
sl@0: 	/**
sl@0: 	Specifies the VBV parameters in use for the VOL. The values in iVbvParams are valid if 
sl@0: 	iShortVideoHeader equals to EFalse. If iShortVideoHeader equals to ETrue, the VBV operation and 
sl@0: 	parameters are specified in Annex D of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TMPEG4VisualVbvParams iVbvParams;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates the number of evenly spaced subintervals, called ticks, within one modulo time. One
sl@0: 	modulo time represents the fixed interval of one second. Shall be set equal to the value of 
sl@0: 	vop_time_increment_resolution of the VideoObjectLayer() syntax structure of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint16 iVOPTimeIncrementResolution;
sl@0: 
sl@0: 	/**
sl@0: 	iFixedVOPRate equal to ETrue indicates that all VOPs are coded with a fixed VOP rate. 
sl@0: 	iFixedVOPRate equal to EFalse indicates that some VOPs may not be coded with a fixed VOP rate. 
sl@0: 	Shall be set equal to the value of fixed_vop_rate of the VideoObjectLayer() syntax structure
sl@0: 	of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TBool iFixedVOPRate;
sl@0: 
sl@0: 	/**
sl@0: 	The number of ticks between two successive VOPs in the display order. Valid only if 
sl@0: 	iFixedVOPRate is equal to ETrue. Shall be set equal to the value of fixed_vop_time_increment 
sl@0: 	of the VideoObjectLayer() syntax structure of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint16 iFixedVOPTimeIncrement;
sl@0: 
sl@0: 	/**
sl@0: 	iDataPartitioning equal to ETrue indicates that slices are organized in data partitions within 
sl@0: 	the associated elementary bitstream. Shall be set equal to the value of the data_partitioned 
sl@0: 	syntax element of the VideoObjectLayer() syntax structure of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TBool iDataPartitioning;
sl@0: 
sl@0: 	/**
sl@0: 	iReversibleVLC equal to ETrue indicates that the reversible variable length tables of MPEG-4 
sl@0: 	Visual are in use in the associated elementary bistream. Shall be set equal to the value of the
sl@0: 	reversible_vlc syntax element of the VideoObjectLayer() syntax structure of MPEG-4 Visual. If 
sl@0: 	reversible_vlc is not present in the bitstream, the value of iReversibleVLC shall be set to 
sl@0: 	EFalse.
sl@0: 	*/
sl@0:     TBool iReversibleVLC;
sl@0: 
sl@0: 	/**
sl@0: 	Contains the user_data bytes, if any, that are directly included in the VideoObjectLayer()
sl@0: 	syntax structure, in bitstream order. The pointer must remain valid as long as the object it 
sl@0: 	belongs to is being processed by the client (for playback) or MSL video subsystem (for 
sl@0: 	recording).
sl@0: 	*/
sl@0:     TPtrC8 iUserData;
sl@0:     };
sl@0: 
sl@0: 
sl@0: /**
sl@0: Mpeg4 visual GOV header.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualGOVHeader
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	iTimeCodeHours, iTimeCodeMinutes and iTimeCodeSeconds together specify the modulo part (i.e. the 
sl@0: 	full second units) of the time base for the first object plane (in display order) after the GOV 
sl@0: 	header according to the semantics of the time_code syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iTimeCodeHours;
sl@0: 
sl@0: 	/**
sl@0: 	iTimeCodeHours, iTimeCodeMinutes and iTimeCodeSeconds together specify the modulo part (i.e. the 
sl@0: 	full second units) of the time base for the first object plane (in display order) after the GOV 
sl@0: 	header according to the semantics of the time_code syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iTimeCodeMinutes;
sl@0: 
sl@0: 	/**
sl@0: 	iTimeCodeHours, iTimeCodeMinutes and iTimeCodeSeconds together specify the modulo part (i.e. the 
sl@0: 	full second units) of the time base for the first object plane (in display order) after the GOV 
sl@0: 	header according to the semantics of the time_code syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iTimeCodeSeconds;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates the nature of the predictions used in the first consecutive B-VOPs (if any) 
sl@0: 	immediately following the first coded I-VOP after the GOV header. iClosedGOV equal to ETrue
sl@0: 	indicates that there are no such B-VOPs or that these B-VOPs have been encoded using only 
sl@0: 	backward prediction or intra coding. The value of iClosedGOV shall be set equal to the value of
sl@0: 	closed_gov syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TBool iClosedGOV;
sl@0: 
sl@0: 	/**
sl@0: 	iBrokenLink equal to ETrue indicates that the first consecutive B-VOPs (if any) immediately 
sl@0: 	following the first coded I-VOP following the GOV header may not be correctly decoded because
sl@0: 	the reference frame which is used for prediction is not available (e.g., due to result of 
sl@0: 	editing in compressed domain). A decoder may use this flag to avoid displaying frames that 
sl@0: 	cannot be correctly decoded. The value of iBrokenLink shall be set equal to the value of 
sl@0: 	broken_link syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TBool iBrokenLink;
sl@0:     };
sl@0: 
sl@0: 
sl@0: /**
sl@0: Mpeg4 visual VOP header.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualVOPHeader
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Indicates the coding type of the VOP.
sl@0: 	*/
sl@0:     TMPEG4VisualVOPType iVOPCodingType;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates the number of seconds elapsed since the previous GOV header or since the previous
sl@0: 	picture in display order, whichever is closer in display order. The value of iModuloTimeBase 
sl@0: 	shall be set equal to the decoded value derived from a series of modulo_time_base fields as 
sl@0: 	specified in MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint iModuloTimeBase;
sl@0: 
sl@0: 	/**
sl@0: 	VOP display time relative to iModuloTimeBase in clock ticks. The value of iVOPTimeIncrement 
sl@0: 	shall be set equal to the value of the vop_time_increment syntax element of MPEG-4 Visual.
sl@0: 	*/
sl@0:     TUint16 iVOPTimeIncrement;
sl@0: 
sl@0: 	/**
sl@0: 	iVOPCoded equal to EFalse indicates that the VOP is a copy of the previous VOP in display order.
sl@0: 	The value of iVOPCoded shall be set equal to the value of the vop_coded syntax element of MPEG-4
sl@0: 	Visual.
sl@0: 	*/
sl@0:     TBool iVOPCoded;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates the initial value of the quantization parameter. iVOPQuant shall be set equal to the
sl@0: 	value of the vop_quant syntax element.
sl@0: 	*/
sl@0:     TUint iVOPQuant;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates the VOP ID. iVOPId shall be set equal to the value of the vop_id syntax element. Valid
sl@0: 	only if the flag newpred_enable is equal to 1.
sl@0: 	*/
sl@0:     TUint16 iVOPId;
sl@0: 
sl@0: 	/**
sl@0: 	When equal to ETrue indicates the following iVOPIdForPrediction is valid. Valid only if the flag
sl@0: 	newpred_enable is equal to 1.
sl@0: 	*/
sl@0:     TBool iVOPIdForPredictionValid;
sl@0: 
sl@0: 	/**
sl@0: 	Indicates VOP ID of the VOP that is used as the reference VOP for the current VOP. 
sl@0: 	iVOPIdForPrediction shall be set equal to the value of the vop_id_for_prediction if the syntax 
sl@0: 	element is present (i.e. the ). Valid only if iVOPIdForPredictionValid is equal to ETrue.
sl@0: 	*/
sl@0:     TUint16 iVOPIdForPrediction;
sl@0:     };
sl@0: 
sl@0: 
sl@0: /**
sl@0: This class is used to convey information of Visual Object Sequence, Visual Object, VOL, GOV, and VOP 
sl@0: headers that are consecutive in decoding order without any intervening syntax structures.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualHeader
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	A binary OR of values specified in TMPEG4VisualHeaderType:
sl@0: 		* EMPEG4VisualHeaderSequence - set if the visual object sequence header is present and 
sl@0: 		  iVisualObjectSequenceHeader is set accordingly. Otherwise, iVisualObjectSequenceHeader 
sl@0: 		  shall be set to NULL.
sl@0: 		* EMPEG4VisualHeaderObject - set if the visual object header is present and 
sl@0: 		  iVisualObjectHeader is set accordingly. Otherwise, iVisualObjectHeader shall be set
sl@0: 		  to NULL.
sl@0: 		* EMPEG4VisualHeaderVOL - set if the VOL header is present and iVOLHeader is set accordingly.
sl@0: 		  Otherwise, iVOLHeader shall be set to NULL.
sl@0: 		* EMPEG4VisualHeaderGOV - set if the GOV header is present and iGOVHeader is set accordingly.
sl@0: 		  Otherwise, iGOVHeader shall be set to NULL.
sl@0: 		* EMPEG4VisualHeaderVOP - set if the VOP header is present and iVOPHeader is set accordingly.
sl@0: 		  Otherwise, iVOPHeader shall be set to NULL
sl@0: 	*/
sl@0:     TUint32 iConsecutiveHeaders;
sl@0: 
sl@0: 	/**
sl@0: 	The visual object sequence header.
sl@0: 	*/
sl@0:     const TMPEG4VisualObjectSequenceHeader* iVisualObjectSequenceHeader;
sl@0: 
sl@0: 	/**
sl@0: 	The visual object header.
sl@0: 	*/
sl@0:     const TMPEG4VisualObjectHeader* iVisualObjectHeader;
sl@0: 
sl@0: 	/**
sl@0: 	The VOL header.
sl@0: 	*/
sl@0:     const TMPEG4VisualVOLHeader* iVOLHeader;
sl@0: 
sl@0: 	/**
sl@0: 	The GOV header.
sl@0: 	*/
sl@0:     const TMPEG4VisualGOVHeader* iGOVHeader;
sl@0: 
sl@0: 	/**
sl@0: 	The VOP header.
sl@0: 	*/
sl@0:     const TMPEG4VisualVOPHeader* iVOPHeader;
sl@0:     };
sl@0: 
sl@0: 
sl@0: 
sl@0: /**
sl@0: This class is used to signal decoder or encoder capabilities.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualCapability
sl@0:     {
sl@0: public:
sl@0: 	/*
sl@0: 	iProfileLevel[ i ] indicates a supported combination of profile and level, i.e., 
sl@0: 	profile_and_level_indication, according to Table G-1 of MPEG-4 Visual. The values of i from 62 
sl@0: 	to 255 are reserved (the MPEG-4 Visual standard referenced in the present document has 62 
sl@0: 	combinations of profile and level). 
sl@0: 	*/
sl@0:     TUint8 iProfileLevel[256];
sl@0:     };
sl@0: 
sl@0: 
sl@0: /**
sl@0: This class is used to set the encoder operation mode.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualNormalMPEG4Mode
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Specifies the picture types allowed in the bitstream. The value is a binary OR of values from
sl@0: 	TMPEG4VisualVOPType. Signaled picture types that are not included in the prevailing coding 
sl@0: 	profile are ignored.
sl@0: 	*/
sl@0:     TMPEG4VisualVOPType iAllowedVOPTypes;
sl@0: 	
sl@0: 	/**
sl@0: 	Specifies the number of consecutive video packet headers within a VOP, starting from the first
sl@0: 	video packet header in decoding order, where the value of header_extension_code shall be set to 1. 
sl@0: 	*/
sl@0:     TUint iHeaderExtension;
sl@0: 
sl@0: 	/**
sl@0: 	Specifies whether data partitioning is in use. When equal to ETrue, data partitioning is in use.
sl@0: 	When equal to EFalse, data partitioning is not in use. If data partitioning is in use, the 
sl@0: 	SetErrorProtectionLevelsL method, if used, should set the number of unequal error protection
sl@0: 	levels to be larger than one. 
sl@0: 	*/
sl@0:     TBool iDataPartitioning;
sl@0: 	
sl@0: 	/**
sl@0: 	Specifies whether reversible variable length coding is in use. When equal to ETrue, reversible 
sl@0: 	variable length coding is in use. When equal to EFalse, reversible variable length coding is 
sl@0: 	not in use. Valid only if iDataPartitioned is equal to ETrue.
sl@0: 	*/
sl@0:     TBool iReversibleVLC;
sl@0: 	
sl@0: 	/**
sl@0: 	Specifies which headers are included in the first output buffer of each intra VOP. (Note: Video
sl@0: 	Object Sequence and Video Object Headers can be repeated for error resiliency. VOL Header 
sl@0: 	includes the initial buffer occupancy level. GOV header includes an update on display times.)
sl@0: 	*/
sl@0:     TMPEG4VisualHeaderType iHeadersBeforeIntraVOP;
sl@0:     };
sl@0: 
sl@0: /**
sl@0: This class is used to set the encoder operation mode.
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: class TMPEG4VisualMode
sl@0:     {
sl@0: public:
sl@0: 	/**
sl@0: 	Indicates whether the short header mode of MPEG-4 Visual is used. If iShortHeaderMode is 
sl@0: 	equal to ETrue, then iH263VideoMode is valid and all other parameter values are invalid. If 
sl@0: 	iShortHeaderMode is equal to EFalse, then iH263VideoMode is invalid and all other parameter 
sl@0: 	values are valid. 
sl@0: 	*/
sl@0:     TBool iShortHeaderMode;
sl@0: 	
sl@0: 	/**
sl@0: 	Contains the encoding modes to use when iShortHeaderMode is EFalse.
sl@0: 	*/
sl@0:     TMPEG4VisualNormalMPEG4Mode iMPEG4VisualNormalMPEG4Mode;
sl@0: 
sl@0: 	/**
sl@0: 	Contains the encoding modes to use when iShortHeaderMode is ETrue.
sl@0: 	*/
sl@0:     TH263VideoMode iH263VideoMode;
sl@0:     };
sl@0: 
sl@0: 	
sl@0: 
sl@0: #endif