Class TAvcVideoMode

class TAvcVideoMode;

Description

This class is used to set the encoder operation mode.

Members

Defined in TAvcVideoMode:

• iAllowedPictureTypesSpecifies the picture types allowed in the bitstream. The value is a binary OR o...
• iDataPartitioningSpecifies whether data partitioning is in use. When equal to ETrue, data partiti...
• iDirect8x8InferenceSpecifies the method used in the derivation process for luma motion vectors for ...
• iEntropyCodingCABACSpecifies the entropy decoding method to be applied for the syntax elements for ...
• iFlexibleMacroblockOrderSpecifies whether Flexible Macroblock Order (FMO) is allowed. Equal to ETrue ind...
• iFrameMBsOnlyiFrameMBsOnly equal to ETrue specifies that every coded picture of the coded vid...
• iMBAFFCodingiMBAFFCoding equal to EFalse specifies no switching between frame and field macr...
• iRedundantPicturesSpecifies whether redundant pictures may be encoded. Equal to ETrue indicates th...
• iWeightedBipredicitonModeEqual to 0 specifies that the default weighted prediction is applied to B slices...
• iWeightedPPredictionEqual to EFalse specifies that weighted prediction shall not be applied to P and...

TUint32 iAllowedPictureTypes;

Description

Specifies the picture types allowed in the bitstream. The value is a binary OR of values from TAvcPictureType. Signaled picture types that are not included in the prevailing coding profile are ignored.

TBool iFlexibleMacroblockOrder;

Description

Specifies whether Flexible Macroblock Order (FMO) is allowed. Equal to ETrue indicates that num_slice_groups_minus1 is in the range of 0 to 7, inclusive, i.e. FMO is allowed. Equal to EFalse indicates that num_slice_groups_minus1 shall be equal to 0 only, i.e., FMO is not allowed.

TBool iRedundantPictures;

Description

Specifies whether redundant pictures may be encoded. Equal to ETrue indicates that redundant_pic_cnt_present_flag can be equal to either 0 or 1 (i.e., redundant pictures may be encoded), while Equal to EFalse indicates that redundant_pic_cnt_present_flag shall be equal to 0 only (i.e., redundant pictures cannot be encoded).

TBool iDataPartitioning;

Description

Specifies whether data partitioning is in use. When equal to ETrue, data partitioning is in use, i.e., NAL unit streams can contain nal_unit_type values in the range of 2 to 4, inclusive. When equal to EFalse, data partitioning is not in use, i.e., NAL unit streams shall not contain nal_unit_type values in the range of 2 to 4, inclusive. If data partitioning is in use, the SetErrorProtectionLevelsL method, if used, should set the number of unequal error protection levels to be larger than one.

TBool iFrameMBsOnly;

Description

iFrameMBsOnly equal to ETrue specifies that every coded picture of the coded video sequence is a coded frame containing only frame macroblocks. Equal to EFalse specifies that coded pictures of the coded video sequence may either be coded fields or coded frames.

TBool iMBAFFCoding;

Description

iMBAFFCoding equal to EFalse specifies no switching between frame and field macroblocks within a picture. Equal to ETrue specifies the possible use of switching between frame and field macroblocks within frames. Valid only when iFrameMBsOnly is equal to EFalse.

TBool iEntropyCodingCABAC;

Description

Specifies the entropy decoding method to be applied for the syntax elements for which two descriptors appear in the syntax tables. Equal to EFalse indicates that Exp-Golomb codes or CAVLC (Context-based Adaptive Variable Length Coding), as described in subclause 9.1 or 9.2 of the AVC specification, is applied. Otherwise, CABAC (Context-based Adaptive Binary Arithmetic Coding) as described in subclause 9.3 of the AVC specification is applied.

TBool iWeightedPPrediction;

Description

Equal to EFalse specifies that weighted prediction shall not be applied to P and SP slices. Equal to ETrue specifies that weighted prediction may be applied to P and SP slices.

TUint iWeightedBipredicitonMode;

Description

Equal to 0 specifies that the default weighted prediction is applied to B slices. Equal to 1 specifies that explicit weighted prediction is applied to B slices. Equal to 2 specifies that implicit weighted prediction is applied to B slices.

TBool iDirect8x8Inference;

Description

Specifies the method used in the derivation process for luma motion vectors for B_Skip, B_Direct_16x16 and B_Direct_8x8 as specified in subclause 8.4.1.2 of the AVC specification. When iFrameMBsOnly is equal to EFalse, iDirect8x8Inference shall be equal to ETrue.