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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_BlockMatch_Half.c')
| -rw-r--r-- | media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_BlockMatch_Half.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_BlockMatch_Half.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_BlockMatch_Half.c deleted file mode 100644 index 1b69a33..0000000 --- a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p2/src/armVCM4P2_BlockMatch_Half.c +++ /dev/null @@ -1,187 +0,0 @@ -/** - * - * File Name: armVCM4P2_BlockMatch_Half.c - * OpenMAX DL: v1.0.2 - * Revision: 9641 - * Date: Thursday, February 7, 2008 - * - * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. - * - * - * - * Description: - * Contains modules for Block matching, a full search algorithm - * is implemented - * - */ - -#include "omxtypes.h" -#include "armOMX.h" -#include "omxVC.h" - -#include "armVC.h" -#include "armCOMM.h" - -/** - * Function: armVCM4P2_BlockMatch_Half - * - * Description: - * Performs a 16x16 block match with half-pixel resolution. Returns the estimated - * motion vector and associated minimum SAD. This function estimates the half-pixel - * motion vector by interpolating the integer resolution motion vector referenced - * by the input parameter pSrcDstMV, i.e., the initial integer MV is generated - * externally. The input parameters pSrcRefBuf and pSearchPointRefPos should be - * shifted by the winning MV of 16x16 integer search prior to calling BlockMatch_Half_16x16. - * The function BlockMatch_Integer_16x16 may be used for integer motion estimation. - * - * Remarks: - * - * Parameters: - * [in] pSrcRefBuf pointer to the reference Y plane; points to the reference MB - * that corresponds to the location of the current macroblock in - * the current plane. - * [in] refWidth width of the reference plane - * [in] pRefRect reference plane valid region rectangle - * [in] pSrcCurrBuf pointer to the current macroblock extracted from original plane - * (linear array, 256 entries); must be aligned on an 8-byte boundary. - * [in] pSearchPointRefPos position of the starting point for half pixel search (specified - * in terms of integer pixel units) in the reference plane. - * [in] rndVal rounding control bit for half pixel motion estimation; - * 0=rounding control disabled; 1=rounding control enabled - * [in] pSrcDstMV pointer to the initial MV estimate; typically generated during a prior - * 16X16 integer search and its unit is half pixel. - * [in] BlockSize MacroBlock Size i.e either 16x16 or 8x8. - * [out]pSrcDstMV pointer to estimated MV - * [out]pDstSAD pointer to minimum SAD - * - * Return Value: - * OMX_Sts_NoErr ¨C no error - * OMX_Sts_BadArgErr ¨C bad arguments - * - */ - -OMXResult armVCM4P2_BlockMatch_Half( - const OMX_U8 *pSrcRefBuf, - OMX_INT refWidth, - const OMXRect *pRefRect, - const OMX_U8 *pSrcCurrBuf, - const OMXVCM4P2Coordinate *pSearchPointRefPos, - OMX_INT rndVal, - OMXVCMotionVector *pSrcDstMV, - OMX_INT *pDstSAD, - OMX_U8 BlockSize -) -{ - OMX_INT outer, inner, count, index; - OMX_S16 halfPelX = 0, halfPelY = 0, x, y; - OMX_INT candSAD, refSAD = 0; - OMX_INT minSAD, fromX, toX, fromY, toY; - /* Offset to the reference at the begining of the bounding box */ - const OMX_U8 *pTempSrcRefBuf; - OMX_U8 tempPel; - - /* Argument error checks */ - armRetArgErrIf(pSrcRefBuf == NULL, OMX_Sts_BadArgErr); - armRetArgErrIf(pRefRect == NULL, OMX_Sts_BadArgErr); - armRetArgErrIf(pSrcCurrBuf == NULL, OMX_Sts_BadArgErr); - armRetArgErrIf(pSearchPointRefPos == NULL, OMX_Sts_BadArgErr); - armRetArgErrIf(pSrcDstMV == NULL, OMX_Sts_BadArgErr); - armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr); - - /* Positioning the pointer */ - pTempSrcRefBuf = pSrcRefBuf + (refWidth * (pSrcDstMV->dy/2)) + (pSrcDstMV->dx/2); - - /* Copy the candidate to the temporary linear array */ - for (outer = 0, count = 0,index = 0; - outer < BlockSize; - outer++, index += refWidth - BlockSize) - { - for (inner = 0; inner < BlockSize; inner++, count++, index++) - { - refSAD += armAbs (pTempSrcRefBuf[index] - pSrcCurrBuf[count]); - } - } - - /* Set the minSad as reference SAD */ - minSAD = refSAD; - *pDstSAD = refSAD; - - /* Check for valid region */ - fromX = 1; - toX = 1; - fromY = 1; - toY = 1; - if ((pSearchPointRefPos->x - 1) < pRefRect->x) - { - fromX = 0; - } - - if ((pSearchPointRefPos->x + BlockSize + 1) > (pRefRect->x + pRefRect->width)) - { - toX = 0; - } - - if ((pSearchPointRefPos->y - 1) < pRefRect->y) - { - fromY = 0; - } - - if ((pSearchPointRefPos->y + BlockSize + 1) > (pRefRect->y + pRefRect->height)) - { - toY = 0; - } - - /* Looping on y- axis */ - for (y = -fromY; y <= toY; y++) - { - /* Looping on x- axis */ - for (x = -fromX; x <= toX; x++) - { - /* check for integer position */ - if ( x == 0 && y == 0) - { - continue; - } - /* Positioning the pointer */ - pTempSrcRefBuf = pSrcRefBuf + (refWidth * (pSrcDstMV->dy/2)) - + (pSrcDstMV->dx/2); - - /* Interpolate the pixel and calculate the SAD*/ - for (outer = 0, count = 0, candSAD = 0,index = 0; - outer < BlockSize; - outer++, index += refWidth - BlockSize) - { - for (inner = 0; inner < BlockSize; inner++, count++,index++) - { - tempPel = ( - pTempSrcRefBuf[index] - + pTempSrcRefBuf[index + x] * armAbs(x) - + pTempSrcRefBuf[index + refWidth * y] * armAbs(y) - + pTempSrcRefBuf[index + refWidth * y + x] - * armAbs(x*y) - + armAbs (x) + armAbs (y) - rndVal - ) / (2 * (armAbs (x) + armAbs (y))); - candSAD += armAbs (tempPel - pSrcCurrBuf[count]); - } - } - - /* Result calculations */ - if (armVCM4P2_CompareMV (x, y, candSAD, halfPelX, halfPelY, minSAD)) - { - *pDstSAD = candSAD; - minSAD = candSAD; - halfPelX = x; - halfPelY = y; - } - - } /* End of x- axis */ - } /* End of y-axis */ - - pSrcDstMV->dx += halfPelX; - pSrcDstMV->dy += halfPelY; - - return OMX_Sts_NoErr; - -} - -/* End of file */ |