SPV_INTEL_device_side_avc_motion_estimation

OpSubgroupAvcMceSetInterBaseMultiReferencePenaltyINTEL

Set the multi-reference base penalty when HW assisted multi-reference search is performed.

Reference major partitions get associated with a penalty based on its distance from the source image. The Reference Base Penalty is scaled using a scaling factor based on the implied distance of the reference image from the source image as shown below.

Result Type must be the OpTypeAvcMcePayloadINTEL type.

Reference Base Penalty must be 8-bit scalar integer type in U4U4 format and the decoded integer value must fit within 12 bits. It is treated as an unsigned value.

Payload must be the OpTypeAvcMcePayloadINTEL type.

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OpSubgroupAvcMceSetInterShapePenaltyINTEL

Set the shape penalty for inter motion estimation.

Result Type must be the OpTypeAvcMcePayloadINTEL type.

Packed Shape Penalty must be 64-bit scalar integer type. It is treated as an unsigned value. The following bits specify the shape penalty in U4U4 format:

The U4U4 decoded integer values for byte 0 and byte 4 must bit fit in 12 bits, while the U4U4 decoded integer values for the other bytes must fit within 10 bits.

Payload must be the OpTypeAvcMcePayloadINTEL type.

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OpSubgroupAvcMceSetMotionVectorCostFunctionINTEL

Update the input payload to set the cost precision along with the cost center and cost table and return it.

Result Type must be the OpTypeAvcMcePayloadINTEL type.

Packed Cost Center Delta must be an OpTypeInt with 64-bit Width and 0 Signedness. It is the packed bidirectional cost center delta value relative to the source macroblock, which specifies the 4 bidirectional cost centers of each of the 8x8 partitions of the reference image. If only unidirectional search is performed then the values of the backward reference cost centers must be zero. Work-item n provides the value of cost center n. It is specified in QPEL units. For 16x16 partitions work-item 0 provides the cost center. For 8x16 partitions work-items 0 and 1 provide the cost centers. For 16x8 partitions work-items 0 and 2 provide the cost centers. The X and Y coordinates of each cost center delta must be in the range [-2048, 2047] and [-512.00 to 511.75] respectively, otherwise the results are undefined.

Packed Cost Table must be a vector(2) of i32 values and 0 Signedness and specifies the cost penalties for pre-defined control points in U4U4 format in the cost function curve. The first 7 bytes specify 7 control points representing consecutive powers-of-two delta units (2⁰ to 2⁶). Each delta unit, dx, is the distance of a motion vector, mv, from the specified cost center, cc (dx=abs(mv-cc)). The cost penalty values at in-between control points are linearly interpolated. The range of the cost function is defined to be from 2⁰ to 2⁶ delta units. The 8th byte of the packed cost table specifies the penalty base factor (over_cost) for dx distances that are out-of-range. The penalty of out-of-range cost dx distances is computed as min(over_cost + int(dx) - 64, 255).

Cost Precision must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid cost precision value as per Section 3, Binary Form, and specifies the precision of the delta units from the cost center, dx. This effectively can be used to control the range of the cost function as follows:

The inter distortion for a block can be described by the following formula:

Payload must be the OpTypeAvcMcePayloadINTEL type.

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OpSubgroupAvcMceGetMotionVectorsINTEL

Get the MCE packed BMVs result.

Up to 16 packed BMVs are returned, one per work-item. If the MCE search operation’s payload was setup for unidirectional search then only the forward packed MV will be valid in each BMV, otherwise both packed MVs will be valid. The BMVs have to be selected by their respective work-items based on the result block major and minor shapes.

If the major shape is:

If the range of work-items for the 8x8 major partition is [n, n+3] and the minor shape is:

Result Type must be an OpTypeInt with 64-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcMceGetInterDirectionsINTEL

Get the MCE inter MB major partition directions.

It returns a bit field with the direction for up to 4 major sub-partitions in traditional Z order. Two bits are reserved for each of the four sub-partitions. The returned 2-bit values are as per the inter-MB major shape direction values as per Section 3, Binary Form.

If the major partition is:

The returned values are as per the inter direction values as per Section 3, Binary Form.

This can only be called as part of an IME or REF operation evaluation.

Result Type must be an OpTypeInt with 8-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcMceGetInterReferenceIdsINTEL

Get the MCE inter MB reference identifiers in a packed integer format, with the following bits specifying the reference identifiers for the major partitions.

The values of each individual 4-bit reference identifier range from 0 to 15, with each value identifying the distance of ordered pair of forward/backward reference images as declared in the VME kernel parameter operand list.

If the dual-reference evaluation instructions are not used, then the values of the backward reference identifiers are undefined.

The blocks are numbered using the traditional Z order. For larger block sizes, the sub-block reference identifier pairs are replicated. For example, for a 16x16 block all four pairs of reference identifiers are replicated to the value of the first pair for block 0.

Result Type must be an OpTypeInt with 32-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcMceGetInterReferenceInterlacedFieldPolaritiesINTEL

Get the MCE inter MB reference field polarities for the corresponding reference identifiers returned by OpSubgroupAvcMceGetInterReferenceIdsINTEL in a packed integer format, with the following bits specifying the reference field polarities for the major partitions.

If the dual-reference evaluation instructions are not used, then the values of the backward reference field polarities are undefined.

The blocks are numbered using the traditional Z order. For larger block sizes, the sub-block reference field polarities are replicated. For example, for a 16x16 block all four pairs of reference field polarities are replicated to the value of the first pair for block 0.

Result Type must be an OpTypeInt with 8-bit Width and 0 Signedness.

Packed Reference Ids must be an OpTypeInt with 32-bit Width and 0 Signedness, and is as defined by the return value of OpSubgroupAvcMceGetInterReferenceIdsINTEL.

Packed Reference Parameter Field Polarities must be an OpTypeInt with 32-bit Width and 0 Signedness, and specifies the packed bit field of field polarities for each of the (up to 16) forward/backward interleaved pairs of reference images in the same order as specified in the kernel parameter operand list, as used for the inter search operation. If less than 16 pairs are used then the corresponding bit field values are ignored.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcImeInitializeINTEL

Return an initialized payload for a VME integer search (IME) operation.

The payload is initialized for progressive frame operations, and the cost configuration values and the miscellaneous property values are all initialized to zero. The cost configuration and the miscellaneous property configuration instructions must be used to override the initial configurations in the payload.

Result Type must be the OpTypeAvcImePayloadINTEL type.

Src Coord must be a vector(2) of i16 values and 0 Signedness. It represents the 2D offset of the top left corner of the source MB in pixel units in the source image. Source MBs at the image borders are allowed to be partial, but the top-left corner must be within the image.

Partition Mask must be an OpTypeInt with 8-bit Width and 0 Signedness. The legal values can be composed by setting the appropriate bit fields specified by partition mask values as per Section 3, Binary Form using OpBitwiseAnd.

SAD Adjustment must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid SAD adjustment mode as per Section 3, Binary Form. If it is set to AVC_ME_SAD_ADJUST_MODE_HAAR_INTEL, a simple wavelet transform, Haar transform, is used to refine the distortion measure of SAD. Haar transform here is used as a coarse estimation of the integer transform.

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OpSubgroupAvcImeSetSingleReferenceINTEL

Update the input payload for a VME single-reference search with the configuration for the reference window search region, and return it.

Result Type must be the OpTypeAvcImePayloadINTEL type.

Ref Offset specifies the 2D reference window offset, and must be a vector(2) of i16 values and interpreted as signed values. The X and Y coordinates must be in the range [-2048, 2047], otherwise the results are undefined. The reference window is allowed to be partially outside the image. Pixel replication is applied to generate out-of-bound reference pixels. It is specified in PEL units. Results are undefined in the reference region is completely outside the image.

Search Window Config must be an OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid unreserved search window configuration value as per Section 3, Binary Form.

Payload must be the OpTypeAvcImePayloadINTEL type.

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OpSubgroupAvcImeSetDualReferenceINTEL

Update the input payload for a VME dual-reference search with the configurations for the reference window search regions, and return it.

Result Type must be the OpTypeAvcImePayloadINTEL type.

Fwd Ref Offset/Bwd Ref Offset specify the 2D forward/backward reference window offset, and must be a vector(2) of i16 values and interpreted as signed values. The X and Y coordinates must be in the range [-2048, 2047], otherwise the results are undefined. The reference window is allowed to be partially outside the image. Pixel replication is applied to generate out-of-bound reference pixels. It is specified in PEL units. Results are undefined in the reference region is completely outside the image.

Search Window Config must be an OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid unreserved search window configuration value as per Section 3, Binary Form.

Payload must be the OpTypeAvcImePayloadINTEL type.

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OpSubgroupAvcImeAdjustRefOffsetINTEL

If the input 2D reference window offset, Ref Offset, causes the reference window to be fully out-of-bound of the reference image, adjust it such that the reference window is within bounds of the reference image.

Result Type must be a vector(2) of i16 values and interpreted as signed values.

Ref Offset must be a vector(2) of i16 values and interpreted as signed values. It specifies the 2D reference window offset. The X and Y coordinates must be in the range [-2048, 2047], otherwise the results are undefined.

Src Coord must be a vector(2) of i16 values and 0 Signedness. It represents the 2D offset of the top left corner of the source MB in pixel units in the source image. Source MBs at the image borders are allowed to be partial, but the top-left corner must be within the image.

Ref Window Size must be a vector(2) of i16 values and 0 Signedness. It specifies the 2D size of the reference window in pixel units.

Image Size must be a vector(2) of i16 values and 0 Signedness. It specifies the 2D size of the progressive scan, or top or bottom fields, of the interlaced scan image in pixel units.

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OpSubgroupAvcImeSetMaxMotionVectorCountINTEL

Specify the maximum number of motion vectors allowed for the current MB. The default setting is 32. Any other value may alter the MB partitioning decision. The IME operation will compute the best allowed partitioning such that the number of sub-block motion vectors will not exceed Max Motion Vector Count.

Result Type must be the OpTypeAvcImePayloadINTEL type.

Max Motion Vector Count must be an OpTypeInt with 8-bit Width and 0 Signedness, and specifies the maximum number of motion vectors allowed for the current MB. It must be in the range [1, 32], otherwise the results are undefined.

Payload must be the OpTypeAvcImePayloadINTEL type.

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OpSubgroupAvcImeSetWeightedSadINTEL

Set the (16) SAD weights for each 4x4 sub-block.

These values are used to decrease the SAD magnitude of each 4x4 sub-block by dividing the SAD of 4x4 sub-block of the source MB by its mapped weight. It requires a Partition Mask of 16x16 and forward Search Window Configuration.

The weighting pattern used is the traditional Z order for each 4x4 block. Weighted-SAD Control Mapping:

A prior call to OpSubgroupAvcImeSetSingleReferenceINTEL to set up the forward reference image is required.

Packed Sad Weights must be an OpTypeInt with 32-bit Width and 0 Signedness. Each weight is of 2 bits represented in a packed format for each of the 4x4 blocks in Z order.

Payload must be the OpTypeAvcImePayloadINTEL type.

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OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeMotionVectorsINTEL

Get the packed motion vectors for the input major shape from the IME single reference streamout results.

Up to 4 packed MVs are returned, one per work-item. If the major shape is:

Result Type must be a OpTypeInt with 32-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultSingleReferenceStreamoutINTEL type.

Major Shape must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major shape value as per Section 3, Binary Form.

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OpSubgroupAvcImeGetStreamoutDualReferenceMajorShapeMotionVectorsINTEL

Get the packed motion vectors for the input major shape from the IME dual reference streamout results.

Up to 4 packed MVs are returned, one per work-item in the same format as for motion vectors for single reference streamout as described in OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeMotionVectorsINTEL.

Result Type must be a OpTypeInt with 32-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultDualReferenceStreamoutINTEL type.

Major Shape must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major shape value as per Section 3, Binary Form.

Direction must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major direction value as per Section 3, Binary Form.

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OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeDistortionsINTEL

Get the distortions for the input major shape from the IME single reference streamout results.

Up to 4 distortions are returned, one per work-item in the same format as for motion vectors as described in OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeMotionVectorsINTEL.

Result Type must be a OpTypeInt with 16-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultSingleReferenceStreamoutINTEL type.

Major Shape must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major shape value as per Section 3, Binary Form.

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OpSubgroupAvcImeGetStreamoutDualReferenceMajorShapeDistortionsINTEL

Get the distortions for the input major shape from the IME dual reference streamout results.

Up to 4 distortion are returned, one per work-item in the same format as for motion vectors for single reference streamout as described in OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeMotionVectorsINTEL.

Result Type must be a OpTypeInt with 16-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultDualReferenceStreamoutINTEL type.

Major Shape must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major shape value as per Section 3, Binary Form.

Direction must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major direction value as per Section 3, Binary Form.

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OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeReferenceIdsINTEL

Get the reference identifiers for the input major shape and direction from the IME dual reference streamout results

Up to 4 reference identifiers are returned, one per work-item in the same format as for motion vectors as described in OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeMotionVectorsINTEL.

Result Type must be a OpTypeInt with 8-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultSingleReferenceStreamoutINTEL type.

Major Shape must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major shape value as per Section 3, Binary Form.

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OpSubgroupAvcImeGetStreamoutDualReferenceMajorShapeReferenceIdsINTEL

Get the reference identifiers for the input major shape from the IME dual reference streamout results.

Up to 4 reference identifiers are returned, one per work-item in the same format as for motion vectors for single reference streamout as described in OpSubgroupAvcImeGetStreamoutSingleReferenceMajorShapeMotionVectorsINTEL.

Result Type must be a OpTypeInt with 8-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultDualReferenceStreamoutINTEL type.

Major Shape must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major shape value as per Section 3, Binary Form.

Direction must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is a valid inter macro-block major direction value as per Section 3, Binary Form.

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OpSubgroupAvcImeGetBorderReachedINTEL

Get the bitmask indicating whether any border of forward/backward reference image is reached by one or more MVs in the winning inter shape. The bitmask values are as per the inter border reached values as per Section 3, Binary Form.

The search window must have been configured for a forward reference if image_select is set as AVC_ME_FRAME_FORWARD_INTEL and with a backward reference if image_select is set as AVC_ME_FRAME_BACKWARD_INTEL.

Result Type must be a OpTypeInt with 8-bit Width and 0 Signedness.

Image Select must be a OpTypeInt with 8-bit Width and 0 Signedness, and must come from a constant instruction of an integer-type scalar whose value is either AVC_ME_FRAME_FORWARD_INTEL or AVC_ME_FRAME_BACKWARD_INTEL.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcImeGetTruncatedSearchIndicationINTEL

Get the indication that the search operation was prevented from providing the lowest distortion solution due to the tighter constraints on the maximum number of MB motion vectors configured for the search operation.

Result Type must be a OpTypeInt with 8-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcImeGetUnidirectionalEarlySearchTerminationINTEL

Get the indication that unidirectional search operation terminated early because the configured distortion threshold was met.

Result Type must be a OpTypeInt with 8-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcImeGetWeightingPatternMinimumMotionVectorINTEL

Get the 16x16 motion vector corresponding to the minimum 16x16 distortion when applying the traditional Z-order SAD weighting pattern.

Result Type must be a OpTypeInt with 32-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcImeGetWeightingPatternMinimumDistortionINTEL

Get the minimum 16x16 distortion when applying the traditional Z-order SAD weighting pattern.

Result Type must be a OpTypeInt with 16-bit Width and 0 Signedness.

Payload must be the OpTypeAvcImeResultINTEL type.

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OpSubgroupAvcFmeInitializeINTEL

Return an initialized payload for a VME fractional motion estimation operation (FME).

The payload is initialized for progressive frame operations, and the cost configuration values and the miscellaneous property values are all initialized to zero. The cost configuration and the miscellaneous property configuration instructions must be used to override the initial configurations in the payload.

Result Type must be the OpTypeAvcRefPayloadINTEL type.

Src Coord must be a vector(2) of i16 values and 0 Signedness, and represents the 2D offset of the top left corner of the source MB in pixel units in the source image.

Motion Vectors must be an OpTypeInt with 64-bit Width and 0 Signedness. It represents the BMVs returned by an IME in the same format as returned by OpSubgroupAvcMceGetMotionVectorsINTEL. The MVs are in QPEL units. The X and Y coordinates of each MV must be in the range [-2048.00, 2047.75), otherwise the results are undefined.

Major Shapes must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values and format for it are as per the return value of OpSubgroupAvcMceGetInterMajorShapeINTEL.

Minor Shapes must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values and format for it are as per the return value of OpSubgroupAvcMceGetInterMajorShapeINTEL.

Directions must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values and format for it are as per the return value of OpSubgroupAvcMceGetInterDirectionsINTEL.

Pixel Resolution must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values for it are either AVC_ME_SUBPIXEL_MODE_HPEL_INTEL or AVC_ME_SUBPIXEL_MODE_QPEL_INTEL.

Sad Adjustment must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid sad adjustment value as per Section 3, Binary Form.

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OpSubgroupAvcBmeInitializeINTEL

Return an initialized payload for a VME bidirectional motion estimation (BME) operation.

The payload is initialized for progressive frame operations, and the cost configuration values and the miscellaneous property values are all initialized to zero. The cost configuration and the miscellaneous property configuration instructions must be used to override the initial configurations in the payload.

Result Type must be the OpTypeAvcRefPayloadINTEL type.

Src Coord must be a vector(2) of i16 values and 0 Signedness, and represents the 2D offset of the top left corner of the source MB in pixel units in the source image.

Motion Vectors must be an OpTypeInt with 64-bit Width and 0 Signedness. It represents the BMVs returned by an IME in the same format as returned by OpSubgroupAvcMceGetMotionVectorsINTEL. The MVs are in QPEL units. The X and Y coordinates of each MV must be in the range [-2048.00, 2047.75), otherwise the results are undefined.

Major Shapes must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values and format for it are as per the return value of OpSubgroupAvcMceGetInterMajorShapeINTEL.

Minor Shapes must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values and format for it are as per the return value of OpSubgroupAvcMceGetInterMajorShapeINTEL.

Directions must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values and format for it are as per the return value of OpSubgroupAvcMceGetInterDirectionsINTEL.

Pixel Resolution must be an OpTypeInt with 8-bit Width and 0 Signedness. Legal values for it are either AVC_ME_SUBPIXEL_MODE_HPEL_INTEL or AVC_ME_SUBPIXEL_MODE_QPEL_INTEL.

Bidirectional Weight must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid bidirectional weight value as per Section 3, Binary Form.

Sad Adjustment must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid sad adjustment value as per Section 3, Binary Form.

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OpSubgroupAvcRefSetBilinearFilterEnableINTEL

Update the input payload to do enable bilinear filter interpolation instead of 4-tap filter interpolation. Default is 4-tap filter interpolation.

Default is to enable it.

Result Type must be the OpTypeAvcRefPayloadINTEL type.

Payload must be the OpTypeAvcRefPayloadINTEL type.

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OpSubgroupAvcRefEvaluateWithMultiReferenceINTEL

Evaluate the basic REF operation with multi references and return its results.

Result Type must be the OpTypeAvcRefResultINTEL type.

Src Image is an object whose type is an OpTypeVmeImageINTEL, and specifies the source image.

Packed Reference Ids must be an OpTypeInt with 32-bit Width and 0 Signedness, with the following bits specifying the values for the pair of reference images for each major partition.

A forward[backward] reference identifier value of n indicates the forward[backward] image from the n^th pair of forward/backward reference images, with the value of n ranging from 0 to 15.

If the REF operation is configured with only forward reference images then, the values of the backward reference identifiers are not used.

The blocks are numbered using the traditional Z order. For larger block sizes, the sub-block reference identifier pairs must be replicated. For example, for a 16x16 block, all four pair of reference identifiers must be replicated to the value of the first pair for block 0.

Payload must be the OpTypeAvcRefPayloadINTEL type.

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OpSubgroupAvcRefEvaluateWithMultiReferenceInterlacedINTEL

Evaluate the basic REF operation with multi references and return its results. This is used for interlaced source and reference images.

Result Type must be the OpTypeAvcRefResultINTEL type.

Src Image is an object whose type is an OpTypeVmeImageINTEL, and specifies the source image.

Packed Reference Ids must be an OpTypeInt with 32-bit Width and 0 Signedness, with the following bits specifying the values for the pair of reference images for each major partition.

A forward[backward] reference identifier value of n indicates the forward[backward] image from the n^th pair of forward/backward reference images, with the value of n ranging from 0 to 15.

If the REF operation is configured with only forward reference images then, the values of the backward reference identifiers are not used.

The blocks are numbered using the traditional Z order. For larger block sizes, the sub-block reference identifier pairs must be replicated. For example, for a 16x16 block, all four pair of reference identifiers must be replicated to the value of the first pair for block 0.

Packed Reference Field Polarities must be an OpTypeInt with 8-bit Width and 0 Signedness. Reference field polarities for forward and backward reference images are specified for each of the allowed major partitions using it, with the following bits specifying the reference field polarities for the major partitions.

If the dual-reference evaluation instructions are not used, then the values of the backward reference field polarities are not used.

The blocks are numbered using the traditional Z order. For larger block sizes, the sub-block reference field polarities are replicated. For example, for a 16x16 block all four pairs of reference field polarities are replicated to the value of the first pair for block 0.

Payload must be the OpTypeAvcRefPayloadINTEL type.

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OpSubgroupAvcSicInitializeINTEL

Return an initialized payload for a VME SIC operation.

Result Type must be the OpTypeAvcSicPayloadINTEL type.

Src Coord must be a vector(2) of i16 values and 0 Signedness. It represents the 2D offset of the top left corner of the source MB in pixel units in the source image. Source MBs at the image borders are allowed to be partial, but the top-left corner must be within the image.

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OpSubgroupAvcSicConfigureSkcINTEL

Configure the SIC payload for (uni or bi-directional) skip checks.

Result Type must be the OpTypeAvcSicPayloadINTEL type.

Skip Block Partition Type must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to one of the specified partition mask values as per Section 3, Binary Form.

Skip Motion Vector Mask must be an OpTypeInt with 32-bit Width and 0 Signedness. Legal values for it can be composed using the OpBitwiseOr instruction from the values defined for it as per Section 3, Binary Form; both unidirectional and bidirectional skip vectors can be specified uniquely for each major partition (16x16 or 8x8) by an appropriate selection of the skip motion vector mask enumeration values. If the 16x16 Skip Block Partition Type is specified, then only the 16x16 enumeration values may be used, else only the 8x8 enumeration values may be used.

Motion Vectors must be an OpTypeInt with 64-bit Width and 0 Signedness, and specifies the input packed BMVs. Either the forward or backward is ignored if the setting in Skip Motion Vector Mask is backward or forward respectively. If the setting is bidirectional, then both the forward and backward motion vectors will be used. If the Skip Block Partition Type is 16x16, work-item 0 in the subgroup provides the BMV, and if the Skip Block Partition Type is 8x8, work-items 0 to 4 in the subgroup provide the four BMVs. The MVs are in QPEL units. The X and Y coordinates of each MV must be in the range [-2048.00, 2047.75] and [-512.00 to 511.75] respectively, otherwise the results are undefined.

Bidirectional Weight must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid bidirectional weight value as per Section 3, Binary Form. If the setting is unidirectional, then the this parameter value is ignored and can be set to the value 0.

Sad Adjustment must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid sad adjustment value as per Section 3, Binary Form.

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OpSubgroupAvcSicConfigureIpeLumaINTEL

Return an initialized payload for a VME luma intra prediction estimation (IPE) operation.

Result Type must be the OpTypeAvcSicPayloadINTEL type.

Luma Intra Partition Mask must be an OpTypeInt with 8-bit Width and 0 Signedness, which can be composed from their respective values as per Section 3, Binary Form using the OpBitwiseAnd instruction.

Intra Neighbour Availabilty must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid intra neighbour availabilty value as per Section 3, Binary Form.

Left Edge Luma Pixels, Upper Left Corner Luma Pixel, Upper Edge Luma Pixels, Upper Right Edge Luma Pixels must be an OpTypeInt with 8-bit Width and 0 Signedness, and specify the neighbor edge pixels for the left, top-left corner, top and top right edges with each work-item providing each pixel value. These pixels values are used to perform the intra mode estimation.

For the left and top edge pixels, successive subgroup work-items 0 to 15 provide the successive edge pixels. For the top-right edge, successive work-items 0 to 7 provide the successive edge pixels; the pixel values in work-items 8 to 15 are ignored. The top-left corner pixel is a uniform pixel value with each work-item providing the same corner pixel.

Sad Adjustment must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid sad adjustment value as per Section 3, Binary Form.

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OpSubgroupAvcSicConfigureIpeLumaChromaINTEL

Return an initialized payload for a VME luma and chroma intra prediction estimation (IPE) operation.

Result Type must be the OpTypeAvcSicPayloadINTEL type.

Luma Intra Partition Mask must be an OpTypeInt with 8-bit Width and 0 Signedness, which can be composed from their respective values as per Section 3, Binary Form using the OpBitwiseAnd instruction.

Intra Neighbour Availabilty must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid intra neighbour availabilty value as per Section 3, Binary Form.

Left Edge Luma Pixels, Upper Left Corner Luma Pixel, Upper Edge Luma Pixels, Upper Right Edge Luma Pixels, Left Edge Chroma Pixels, Upper Left Corner Chroma Pixel, Upper Edge Chroma Pixels must be an OpTypeInt with 8-bit Width and 0 Signedness, and specify the neighbor luma and chroma edge pixels for the left, top-left corner, top and top-right (luma only) edges with each work-item providing each pixel value. These pixels values are used to perform the intra mode estimation.

For the left and top edge pixels, successive subgroup work-items 0 to 15 provide the successive edge pixels. For the top-right edge, successive work-items 0 to 7 provide the successive edge pixels; the pixel values in work-items 8 to 15 are ignored. The top-left corner pixel is a uniform pixel value with each work-item providing the same corner pixel.

For the left and top chroma CbCr pixels, successive subgroup work-items 0 to 7 provide the successive CbCr pixels; the pixel values in work-items 8 to 15 are ignored. The top-left corner pixel is a uniform CbCr pixel value with each work-item providing the same corner CbCr pixel.

Sad Adjustment must be an OpTypeInt with 8-bit Width and 0 Signedness that must evaluate to a valid sad adjustment value as per Section 3, Binary Form.

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OpSubgroupAvcSicSetIntraLumaShapePenaltyINTEL

Set the shape penalty for inter motion estimation.

Result Type must be the OpTypeAvcSicPayloadINTEL type.

Packed Shape Penalty must be a 32-bit scalar integer type. It is treated as an unsigned value. The following bits specify the shape penalty in U4U4 format:

The U4U4 decoded integer values for each of the bytes must fit within 12 bits.

Payload must be the OpTypeAvcSicPayloadINTEL type.

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OpSubgroupAvcSicSetIntraLumaModeCostFunctionINTEL

Update the payload to configure the luma mode cost function to be applied to the computed luma mode for SIC intra operations.

Result Type must be the OpTypeAvcSicPayloadINTEL type.

Luma Mode Penalty specifies the penalty to be applied to the estimated luma mode if it differs from its predicted luma mode (based on its neighbor intra modes). It is specified in U4U4 format and must bit in 10 bits.

Luma Packed Neighbor Modes specifies the values of the already computed top and left neighbor modes for the bordering 4x4 blocks, with the 4x4 blocks numbered in the traditional Z-order as shown below.

The following bits specify the neighbor modes.

Luma Packed Non Dc Penalty specifies the penalty to be applied for any computed non-DC luma mode for each of the 16x16, 8x8, and 4x4 shapes, with the following bits specifying the penalties.

The component byte values are specified in 8-bit integer format.

Payload must be the OpTypeAvcSicPayloadINTEL type.

The intra distortion for each intra luma block can be described by the following formulas:

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