OMX_S32 armMedianOf3 (
OMX_S32 fEntry,
OMX_S32 sEntry,
OMX_S32 tEntry
)
{
OMX_S32 a, b, c;
a = armMin (fEntry, sEntry);
b = armMax (fEntry, sEntry);
c = armMin (b, tEntry);
return (armMax (a, c));
}
OMXResult omxVCM4P2_TransRecBlockCoef_intra(
const OMX_U8 *pSrc,
OMX_S16 * pDst,
OMX_U8 * pRec,
OMX_S16 *pPredBufRow,
OMX_S16 *pPredBufCol,
OMX_S16 * pPreACPredict,
OMX_INT *pSumErr,
OMX_INT blockIndex,
OMX_U8 curQp,
const OMX_U8 *pQpBuf,
OMX_INT srcStep,
OMX_INT dstStep,
OMX_INT shortVideoHeader
)
{
/* 64 elements are needed but to align it to 16 bytes need
8 more elements of padding */
OMX_S16 tempBuf1[79], tempBuf2[79];
OMX_S16 tempBuf3[79];
OMX_S16 *pTempBuf1, *pTempBuf2,*pTempBuf3;
OMXVCM4P2VideoComponent videoComp;
OMX_U8 flag;
OMX_INT x, y, count, predDir;
OMX_INT predQP, ACPredFlag;
/* Aligning the local buffers */
pTempBuf1 = armAlignTo16Bytes(tempBuf1);
pTempBuf2 = armAlignTo16Bytes(tempBuf2);
pTempBuf3 = armAlignTo16Bytes(tempBuf3);
/* Argument error checks */
armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pRec == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(!armIs8ByteAligned(pSrc), OMX_Sts_BadArgErr);
armRetArgErrIf(!armIs8ByteAligned(pRec), OMX_Sts_BadArgErr);
armRetArgErrIf(!armIs16ByteAligned(pDst), OMX_Sts_BadArgErr);
armRetArgErrIf(pPredBufRow == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pPredBufCol == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pPreACPredict == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pSumErr == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf(pQpBuf == NULL, OMX_Sts_BadArgErr);
armRetArgErrIf((srcStep <= 0) || (dstStep <= 0) ||
(dstStep & 7) || (srcStep & 7)
, OMX_Sts_BadArgErr);
armRetArgErrIf((blockIndex < 0) || (blockIndex > 9), OMX_Sts_BadArgErr);
armRetArgErrIf((curQp <= 0) || (curQp >=32), OMX_Sts_BadArgErr);
/* Setting the videoComp */
if (blockIndex <= 3)
{
videoComp = OMX_VC_LUMINANCE;
}
else
{
videoComp = OMX_VC_CHROMINANCE;
}
/* Converting from 2-d to 1-d buffer */
for (y = 0, count = 0; y < 8; y++)
{
for(x= 0; x < 8; x++, count++)
{
pTempBuf1[count] = pSrc[(y*srcStep) + x];
}
}
omxVCM4P2_DCT8x8blk (pTempBuf1, pTempBuf2);
omxVCM4P2_QuantIntra_I(
pTempBuf2,
curQp,
blockIndex,
shortVideoHeader);
/* Converting from 1-D to 2-D buffer */
for (y = 0, count = 0; y < 8; y++)
{
for(x = 0; x < 8; x++, count++)
{
/* storing tempbuf2 to tempbuf1 */
pTempBuf1[count] = pTempBuf2[count];
pDst[(y*dstStep) + x] = pTempBuf2[count];
}
}
/* AC and DC prediction */
armVCM4P2_SetPredDir(
blockIndex,
pPredBufRow,
pPredBufCol,
&predDir,
&predQP,
pQpBuf);
armRetDataErrIf(((predQP <= 0) || (predQP >= 32)), OMX_Sts_BadArgErr);
flag = 1;
if (*pSumErr < 0)
{
ACPredFlag = 0;
}
else
{
ACPredFlag = 1;
}
armVCM4P2_ACDCPredict(
pTempBuf2,
pPreACPredict,
pPredBufRow,
pPredBufCol,
curQp,
predQP,
predDir,
ACPredFlag,
videoComp,
flag,
pSumErr);
/* Reconstructing the texture data */
omxVCM4P2_QuantInvIntra_I(
pTempBuf1,
curQp,
videoComp,
shortVideoHeader);
omxVCM4P2_IDCT8x8blk (pTempBuf1, pTempBuf3);
for(count = 0; count < 64; count++)
{
pRec[count] = armMax(0,pTempBuf3[count]);
}
return OMX_Sts_NoErr;
}