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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_FilterDeblockingChroma_HorEdge_I.c')
| -rw-r--r-- | media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_FilterDeblockingChroma_HorEdge_I.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_FilterDeblockingChroma_HorEdge_I.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_FilterDeblockingChroma_HorEdge_I.c new file mode 100644 index 0000000..75edee2 --- /dev/null +++ b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_FilterDeblockingChroma_HorEdge_I.c @@ -0,0 +1,130 @@ +/* ---------------------------------------------------------------- + * + * + * File Name: omxVCM4P10_FilterDeblockingChroma_HorEdge_I.c + * OpenMAX DL: v1.0.2 + * Revision: 9641 + * Date: Thursday, February 7, 2008 + * + * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. + * + * + * + * H.264 chroma deblock module + * + */ + +#include "omxtypes.h" +#include "armOMX.h" +#include "omxVC.h" + +#include "armCOMM.h" +#include "armVC.h" + +/** + * Function: omxVCM4P10_FilterDeblockingChroma_HorEdge_I (6.3.3.3.4) + * + * Description: + * Performs in-place deblock filtering on the horizontal edges of the chroma + * macroblock (8x8). + * + * Input Arguments: + * + * pSrcDst - pointer to the input macroblock; must be 8-byte aligned. + * srcdstStep - array step; must be a multiple of 8. + * pAlpha - array of size 2 containing alpha thresholds; the first element + * contains the threshold for the external horizontal edge, and the + * second element contains the threshold for internal horizontal + * edge. Per [ISO14496-10] alpha values must be in the range + * [0,255]. + * pBeta - array of size 2 containing beta thresholds; the first element + * contains the threshold for the external horizontal edge, and the + * second element contains the threshold for the internal + * horizontal edge. Per [ISO14496-10] beta values must be in the + * range [0,18]. + * pThresholds - array of size 8 containing thresholds, TC0, for the top + * horizontal edge of each 2x4 chroma block, arranged in horizontal + * block order; must be aligned on a 4-byte boundary. Per + * [ISO14496-10] values must be in the range [0,25]. + * pBS - array of size 16 containing BS parameters for each 2x2 chroma + * block, arranged in horizontal block order; valid in the range + * [0,4] with the following restrictions: i) pBS[i]== 4 may occur + * only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^3]== 4. + * Must be 4-byte aligned. + * + * Output Arguments: + * + * pSrcDst -Pointer to filtered output macroblock. + * + * Return Value: + * + * OMX_Sts_NoErr, if the function runs without error. + * + * OMX_Sts_BadArgErr, if one of the following cases occurs: + * - any of the following pointers is NULL: + * pSrcDst, pAlpha, pBeta, pThresholds, or pBS. + * - pSrcDst is not 8-byte aligned. + * - srcdstStep is not a multiple of 8. + * - pThresholds is not 4-byte aligned. + * - pAlpha[0] and/or pAlpha[1] is outside the range [0,255]. + * - pBeta[0] and/or pBeta[1] is outside the range [0,18]. + * - One or more entries in the table pThresholds[0..7] is outside + * of the range [0,25]. + * - pBS is out of range, i.e., one of the following conditions is true: + * pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or + * (pBS[i]==4 && pBS[i^3]!=4) for 0<=i<=3. + * - pBS is not 4-byte aligned. + * + */ + +OMXResult omxVCM4P10_FilterDeblockingChroma_HorEdge_I( + OMX_U8* pSrcDst, + OMX_S32 srcdstStep, + const OMX_U8* pAlpha, + const OMX_U8* pBeta, + const OMX_U8* pThresholds, + const OMX_U8 *pBS + ) +{ + int I, X, Y, Internal=0; + + 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); + + for (Y=0; Y<8; Y+=4, Internal=1) + { + for (X=0; X<8; X++) + { + I = (X>>1)+4*(Y>>1); + + armRetArgErrIf(pBS[I] > 4, OMX_Sts_BadArgErr) + + armRetArgErrIf( (I > 3) && (pBS[I] == 4), + OMX_Sts_BadArgErr) + + armRetArgErrIf( (I < 4) && + ( (pBS[I] == 4) && (pBS[I^1] != 4) ), + OMX_Sts_BadArgErr) + + + /* Filter horizontal edge with q0 at (X,Y) */ + armVCM4P10_DeBlockPixel( + pSrcDst + Y*srcdstStep + X, + srcdstStep, + pThresholds[(X>>1)+4*(Y>>2)], + pAlpha[Internal], + pBeta[Internal], + pBS[I], + 1); + } + } + + return OMX_Sts_NoErr; +} |