OMXResult omxVCM4P10_DeblockLuma_I(
OMX_U8* pSrcDst,
OMX_S32 srcdstStep,
const OMX_U8* pAlpha,
const OMX_U8* pBeta,
const OMX_U8* pThresholds,
const OMX_U8 *pBS
)
{
OMXResult errorCode;
armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(armNot8ByteAligned(pSrcDst), OMX_Sts_BadArgErr);
armRetArgErrIf(srcdstStep & 7, OMX_Sts_BadArgErr);
armRetArgErrIf(pAlpha == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pBeta == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pThresholds == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr);
armRetArgErrIf(pBS == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(armNot4ByteAligned(pBS), OMX_Sts_BadArgErr);
errorCode = omxVCM4P10_FilterDeblockingLuma_VerEdge_I(
pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS);
armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode)
errorCode = omxVCM4P10_FilterDeblockingLuma_HorEdge_I(
pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+16, pBS+16);
return errorCode;
}
/**
* Function: omxVCCOMM_ExpandFrame_I (6.1.3.2.1)
*
* Description:
* This function expands a reconstructed frame in-place. The unexpanded
* source frame should be stored in a plane buffer with sufficient space
* pre-allocated for edge expansion, and the input frame should be located in
* the plane buffer center. This function executes the pixel expansion by
* replicating source frame edge pixel intensities in the empty pixel
* locations (expansion region) between the source frame edge and the plane
* buffer edge. The width/height of the expansion regions on the
* horizontal/vertical edges is controlled by the parameter iExpandPels.
*
* Input Arguments:
*
* pSrcDstPlane - pointer to the top-left corner of the frame to be
* expanded; must be aligned on an 8-byte boundary.
* iFrameWidth - frame width; must be a multiple of 8.
* iFrameHeight -frame height; must be a multiple of 8.
* iExpandPels - number of pixels to be expanded in the horizontal and
* vertical directions; must be a multiple of 8.
* iPlaneStep - distance, in bytes, between the start of consecutive lines
* in the plane buffer; must be larger than or equal to
* (iFrameWidth + 2 * iExpandPels).
*
* Output Arguments:
*
* pSrcDstPlane -Pointer to the top-left corner of the frame (NOT the
* top-left corner of the plane); must be aligned on an 8-byte
* boundary.
*
* Return Value:
*
* OMX_Sts_NoErr - no error
* OMX_Sts_BadArgErr - bad arguments; returned under any of the following
* conditions:
* - pSrcDstPlane is NULL.
* - pSrcDstPlane is not aligned on an 8-byte boundary.
* - one of the following parameters is either equal to zero or is a
* non-multiple of 8: iFrameHeight, iFrameWidth, iPlaneStep, or
* iExpandPels.
* - iPlaneStep < (iFrameWidth + 2 * iExpandPels).
*
*/
OMXResult omxVCCOMM_ExpandFrame_I(
OMX_U8* pSrcDstPlane,
OMX_U32 iFrameWidth,
OMX_U32 iFrameHeight,
OMX_U32 iExpandPels,
OMX_U32 iPlaneStep
)
{
OMX_INT x, y;
OMX_U8* pLeft;
OMX_U8* pRight;
OMX_U8* pTop;
OMX_U8* pBottom;
/* check for argument error */
armRetArgErrIf(pSrcDstPlane == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(armNot8ByteAligned(pSrcDstPlane), OMX_Sts_BadArgErr)
armRetArgErrIf(iFrameWidth == 0 || iFrameWidth & 7, OMX_Sts_BadArgErr)
armRetArgErrIf(iFrameHeight== 0 || iFrameHeight & 7, OMX_Sts_BadArgErr)
armRetArgErrIf(iExpandPels == 0 || iExpandPels & 7, OMX_Sts_BadArgErr)
armRetArgErrIf(iPlaneStep == 0 || iPlaneStep & 7, OMX_Sts_BadArgErr)
armRetArgErrIf(iPlaneStep < (iFrameWidth + 2 * iExpandPels),
OMX_Sts_BadArgErr)
/* Top and Bottom */
pTop = pSrcDstPlane - (iExpandPels * iPlaneStep);
pBottom = pSrcDstPlane + (iFrameHeight * iPlaneStep);
for (y = 0; y < (OMX_INT)iExpandPels; y++)
{
for (x = 0; x < (OMX_INT)iFrameWidth; x++)
{
pTop [y * iPlaneStep + x] =
pSrcDstPlane [x];
pBottom [y * iPlaneStep + x] =
pSrcDstPlane [(iFrameHeight - 1) * iPlaneStep + x];
}
}
/* Left, Right and Corners */
pLeft = pSrcDstPlane - iExpandPels;
pRight = pSrcDstPlane + iFrameWidth;
for (y = -(OMX_INT)iExpandPels; y < (OMX_INT)(iFrameHeight + iExpandPels); y++)
{
for (x = 0; x < (OMX_INT)iExpandPels; x++)
{
pLeft [y * iPlaneStep + x] =
pSrcDstPlane [y * iPlaneStep + 0];
pRight [y * iPlaneStep + x] =
pSrcDstPlane [y * iPlaneStep + (iFrameWidth - 1)];
}
}
return OMX_Sts_NoErr;
}
OMXResult omxVCM4P10_TransformDequantLumaDCFromPair(
const OMX_U8 **ppSrc,
OMX_S16* pDst,
OMX_INT QP
)
{
armRetArgErrIf(ppSrc == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(*ppSrc == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(armNot8ByteAligned(pDst), OMX_Sts_BadArgErr);
armRetArgErrIf(QP<0, OMX_Sts_BadArgErr);
armRetArgErrIf(QP>51, OMX_Sts_BadArgErr);
armVCM4P10_UnpackBlock4x4(ppSrc, pDst);
/*InvTransformDequantLumaDC4x4(pDst, QP);*/
InvTransformDC4x4(pDst);
DequantLumaDC4x4(pDst, QP);
return OMX_Sts_NoErr;
}
/**
* Function: omxVCM4P10_GetVLCInfo (6.3.5.9.1)
*
* Description:
* This function extracts run-length encoding (RLE) information from the
* coefficient matrix. The results are returned in an OMXVCM4P10VLCInfo
* structure.
*
* Input Arguments:
*
* pSrcCoeff - pointer to the transform coefficient matrix. 8-byte
* alignment required.
* pScanMatrix - pointer to the scan order definition matrix. For a luma
* block the scan matrix should follow [ISO14496-10] section 8.5.4,
* and should contain the values 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13,
* 10, 7, 11, 14, 15. For a chroma block, the scan matrix should
* contain the values 0, 1, 2, 3.
* bAC - indicates presence of a DC coefficient; 0 = DC coefficient
* present, 1= DC coefficient absent.
* MaxNumCoef - specifies the number of coefficients contained in the
* transform coefficient matrix, pSrcCoeff. The value should be 16
* for blocks of type LUMADC, LUMAAC, LUMALEVEL, and CHROMAAC. The
* value should be 4 for blocks of type CHROMADC.
*
* Output Arguments:
*
* pDstVLCInfo - pointer to structure that stores information for
* run-length coding.
*
* Return Value:
*
* OMX_Sts_NoErr - no error
* OMX_Sts_BadArgErr - bad arguments; returned if any of the following
* conditions are true:
* - at least one of the following pointers is NULL:
* pSrcCoeff, pScanMatrix, pDstVLCInfo
* - pSrcCoeff is not aligned on an 8-byte boundary
*
*/
OMXResult omxVCM4P10_GetVLCInfo (
const OMX_S16* pSrcCoeff,
const OMX_U8* pScanMatrix,
OMX_U8 bAC,
OMX_U32 MaxNumCoef,
OMXVCM4P10VLCInfo* pDstVLCInfo
)
{
OMX_INT i, MinIndex;
OMX_S32 Value;
OMX_U32 Mask = 4, RunBefore;
OMX_S16 *pLevel;
OMX_U8 *pRun;
OMX_S16 Buf [16];
/* check for argument error */
armRetArgErrIf(pSrcCoeff == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(armNot8ByteAligned(pSrcCoeff), OMX_Sts_BadArgErr)
armRetArgErrIf(pScanMatrix == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pDstVLCInfo == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(bAC > 1, OMX_Sts_BadArgErr)
armRetArgErrIf(MaxNumCoef > 16, OMX_Sts_BadArgErr)
/* Initialize RLE Info structure */
pDstVLCInfo->uTrailing_Ones = 0;
pDstVLCInfo->uTrailing_One_Signs = 0;
pDstVLCInfo->uNumCoeffs = 0;
pDstVLCInfo->uTotalZeros = 0;
for (i = 0; i < 16; i++)
{
pDstVLCInfo->iLevels [i] = 0;
pDstVLCInfo->uRuns [i] = 0;
}
MinIndex = (bAC == 0 && MaxNumCoef == 15) ? 1 : 0;
for (i = MinIndex; i < (MaxNumCoef + MinIndex); i++)
{
/* Scan */
Buf [i - MinIndex] = pSrcCoeff [pScanMatrix [i]];
}
/* skip zeros at the end */
i = MaxNumCoef - 1;
while (!Buf [i] && i >= 0)
{
i--;
}
if (i < 0)
{
return OMX_Sts_NoErr;
}
/* Fill RLE Info structure */
pLevel = pDstVLCInfo->iLevels;
pRun = pDstVLCInfo->uRuns;
RunBefore = 0;
/* Handle first non zero separate */
pDstVLCInfo->uNumCoeffs++;
Value = Buf [i];
if (Value == 1 || Value == -1)
{
pDstVLCInfo->uTrailing_Ones++;
pDstVLCInfo->uTrailing_One_Signs |=
Value == -1 ? Mask : 0;
Mask >>= 1;
}
/**
* Function: omxVCM4P10_PredictIntraChroma_8x8 (6.3.3.1.3)
*
* Description:
* Performs intra prediction for chroma samples.
*
* Input Arguments:
*
* pSrcLeft - Pointer to the buffer of 8 left pixels: p[x, y] (x = -1, y=
* 0..7).
* pSrcAbove - Pointer to the buffer of 8 above pixels: p[x,y] (x = 0..7, y
* = -1); must be aligned on an 8-byte boundary.
* pSrcAboveLeft - Pointer to the above left pixels: p[x,y] (x = -1, y = -1)
* leftStep - Step of left pixel buffer; must be a multiple of 8.
* dstStep - Step of the destination buffer; must be a multiple of 8.
* predMode - Intra chroma prediction mode, please refer to section 3.4.3.
* availability - Neighboring chroma block availability flag, please refer
* to "Neighboring Macroblock Availability".
*
* Output Arguments:
*
* pDst - Pointer to the destination buffer; must be aligned on an 8-byte
* boundary.
*
* Return Value:
* If the function runs without error, it returns OMX_Sts_NoErr.
* If any of the following cases occurs, the function returns
* OMX_Sts_BadArgErr:
* pDst is NULL.
* dstStep < 8 or dstStep is not a multiple of 8.
* leftStep is not a multiple of 8.
* predMode is not in the valid range of enumeration
* OMXVCM4P10IntraChromaPredMode.
* predMode is OMX_VC_CHROMA_VERT, but availability doesn't set
* OMX_VC_UPPER indicating p[x,-1] (x = 0..7) is not available.
* predMode is OMX_VC_CHROMA_HOR, but availability doesn't set OMX_VC_LEFT
* indicating p[-1,y] (y = 0..7) is not available.
* predMode is OMX_VC_CHROMA_PLANE, but availability doesn't set
* OMX_VC_UPPER_LEFT or OMX_VC_UPPER or OMX_VC_LEFT indicating
* p[x,-1](x = 0..7), or p[-1,y] (y = 0..7), or p[-1,-1] is not
* available.
* availability sets OMX_VC_UPPER, but pSrcAbove is NULL.
* availability sets OMX_VC_LEFT, but pSrcLeft is NULL.
* availability sets OMX_VC_UPPER_LEFT, but pSrcAboveLeft is NULL.
* either pSrcAbove or pDst is not aligned on a 8-byte boundary. Note:
* pSrcAbove, pSrcAbove, pSrcAboveLeft may be invalid pointer if
* they are not used by intra prediction implied in predMode.
* Note: OMX_VC_UPPER_RIGHT is not used in intra chroma
* prediction.
*
*/
OMXResult omxVCM4P10_PredictIntraChroma_8x8(
const OMX_U8* pSrcLeft,
const OMX_U8 *pSrcAbove,
const OMX_U8 *pSrcAboveLeft,
OMX_U8* pDst,
OMX_INT leftStep,
OMX_INT dstStep,
OMXVCM4P10IntraChromaPredMode predMode,
OMX_S32 availability
)
{
int x, y, Sum;
int H, V, a, b, c;
armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(dstStep < 8, OMX_Sts_BadArgErr);
armRetArgErrIf((dstStep % 8) != 0, OMX_Sts_BadArgErr);
armRetArgErrIf((leftStep % 8) != 0, OMX_Sts_BadArgErr);
armRetArgErrIf(armNot8ByteAligned(pSrcAbove), OMX_Sts_BadArgErr);
armRetArgErrIf(armNot8ByteAligned(pDst), OMX_Sts_BadArgErr);
armRetArgErrIf((availability & OMX_VC_UPPER) && pSrcAbove == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf((availability & OMX_VC_LEFT ) && pSrcLeft == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf((availability & OMX_VC_UPPER_LEFT) && pSrcAboveLeft == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(predMode==OMX_VC_CHROMA_VERT && !(availability & OMX_VC_UPPER), OMX_Sts_BadArgErr);
armRetArgErrIf(predMode==OMX_VC_CHROMA_HOR && !(availability & OMX_VC_LEFT), OMX_Sts_BadArgErr);
armRetArgErrIf(predMode==OMX_VC_CHROMA_PLANE && !(availability & OMX_VC_UPPER), OMX_Sts_BadArgErr);
armRetArgErrIf(predMode==OMX_VC_CHROMA_PLANE && !(availability & OMX_VC_UPPER_LEFT), OMX_Sts_BadArgErr);
armRetArgErrIf(predMode==OMX_VC_CHROMA_PLANE && !(availability & OMX_VC_LEFT), OMX_Sts_BadArgErr);
armRetArgErrIf((unsigned)predMode > OMX_VC_CHROMA_PLANE, OMX_Sts_BadArgErr);
switch (predMode)
{
case OMX_VC_CHROMA_DC:
armVCM4P10_PredictIntraDC4x4( pSrcLeft, pSrcAbove, pDst, leftStep, dstStep, availability);
armVCM4P10_PredictIntraDCUp4x4( pSrcLeft, pSrcAbove+4, pDst+4, leftStep, dstStep, availability);
armVCM4P10_PredictIntraDCLeft4x4( pSrcLeft+4*leftStep, pSrcAbove, pDst+4*dstStep, leftStep, dstStep, availability);
armVCM4P10_PredictIntraDC4x4( pSrcLeft+4*leftStep, pSrcAbove+4, pDst+4+4*dstStep, leftStep, dstStep, availability);
break;
case OMX_VC_CHROMA_HOR:
for (y=0; y<8; y++)
{
for (x=0; x<8; x++)
{
pDst[y*dstStep+x] = pSrcLeft[y*leftStep];
}
}
break;
case OMX_VC_CHROMA_VERT:
for (y=0; y<8; y++)
{
for (x=0; x<8; x++)
{
pDst[y*dstStep+x] = pSrcAbove[x];
}
}
break;
case OMX_VC_CHROMA_PLANE:
H = 4*(pSrcAbove[7] - pSrcAboveLeft[0]);
for (x=2; x>=0; x--)
{
H += (x+1)*(pSrcAbove[4+x] - pSrcAbove[2-x]);
}
V = 4*(pSrcLeft[7*leftStep] - pSrcAboveLeft[0]);
for (y=2; y>=0; y--)
{
V += (y+1)*(pSrcLeft[(4+y)*leftStep] - pSrcLeft[(2-y)*leftStep]);
}
a = 16*(pSrcAbove[7] + pSrcLeft[7*leftStep]);
b = (17*H+16)>>5;
c = (17*V+16)>>5;
for (y=0; y<8; y++)
{
for (x=0; x<8; x++)
{
Sum = (a + b*(x-3) + c*(y-3) + 16)>>5;
pDst[y*dstStep+x] = (OMX_U8)armClip(0,255,Sum);
}
}
break;
}
return OMX_Sts_NoErr;
}