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/* ----------------------------------------------------------------
*
*
* File Name: omxVCM4P10_DeblockChroma_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 intra chroma deblock
*
*/
#include "omxtypes.h"
#include "armOMX.h"
#include "omxVC.h"
#include "armCOMM.h"
#include "armVC.h"
/**
* Function: omxVCM4P10_DeblockChroma_I (6.3.3.3.6)
*
* Description:
* Performs in-place deblocking filtering on all edges of the chroma
* macroblock (16x16).
*
* Input Arguments:
*
* pSrcDst - pointer to the input macroblock; must be 8-byte aligned.
* srcdstStep - step of the arrays; must be a multiple of 8.
* pAlpha - pointer to a 2x2 array of alpha thresholds, organized as
* follows: {external vertical edge, internal vertical edge,
* external horizontal edge, internal horizontal edge }. Per
* [ISO14496-10] alpha values must be in the range [0,255].
* pBeta - pointer to a 2x2 array of Beta Thresholds, organized as follows:
* { external vertical edge, internal vertical edge, external
* horizontal edge, internal horizontal edge }. Per [ISO14496-10]
* beta values must be in the range [0,18].
* pThresholds - array of size 8x2 of Thresholds (TC0) (values for the left
* or above edge of each 4x2 or 2x4 block, arranged in vertical
* block order and then 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 16x2 of BS parameters (arranged in scan block order
* for vertical edges and then horizontal edges); 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 - no error
* OMX_Sts_BadArgErr - bad arguments
* - one or more of the following pointers is NULL: pSrcDst, pAlpha,
* pBeta, pThresholds, or pBS. pSrcDst is not 8-byte aligned.
* either pThresholds or pBS is not 4-byte aligned.
* - one or more entries in the table pAlpha[0..3] is outside the range
* [0,255].
* - one or more entries in the table pBeta[0..3] is outside the range
* [0,18].
* - one or more entries in the table pThresholds[0..15]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.
* - srcdstStep is not a multiple of 8.
*
*/
OMXResult omxVCM4P10_DeblockChroma_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_FilterDeblockingChroma_VerEdge_I(
pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS);
armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode)
errorCode = omxVCM4P10_FilterDeblockingChroma_HorEdge_I(
pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+8, pBS+16);
return errorCode;
}
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