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/* ----------------------------------------------------------------
*
*
* File Name: omxVCM4P10_DeblockLuma_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 luma deblock
*
*/
#include "omxtypes.h"
#include "armOMX.h"
#include "omxVC.h"
#include "armCOMM.h"
#include "armVC.h"
/**
* Function: omxVCM4P10_DeblockLuma_I (6.3.3.3.5)
*
* Description:
* This function performs in-place deblock filtering the horizontal and
* vertical edges of a luma macroblock (16x16).
*
* Input Arguments:
*
* pSrcDst - pointer to the input macroblock; must be 16-byte aligned.
* srcdstStep - image width; must be a multiple of 16.
* pAlpha - pointer to a 2x2 table 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 table 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 - pointer to a 16x2 table of threshold (TC0), organized as
* follows: {values for the left or above edge of each 4x4 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 - pointer to a 16x2 table 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 16-byte aligned.
* either pThresholds or pBS is not aligned on a 4-byte boundary.
* - 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..31]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 16.
*
*/
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(armNot16ByteAligned(pSrcDst), OMX_Sts_BadArgErr);
armRetArgErrIf(srcdstStep & 15, 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;
}
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