1 /* ---------------------------------------------------------------- 2 * 3 * 4 * File Name: omxVCM4P10_DeblockLuma_I.c 5 * OpenMAX DL: v1.0.2 6 * Revision: 9641 7 * Date: Thursday, February 7, 2008 8 * 9 * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. 10 * 11 * 12 * 13 * H.264 luma deblock 14 * 15 */ 16 17 #include "omxtypes.h" 18 #include "armOMX.h" 19 #include "omxVC.h" 20 21 #include "armCOMM.h" 22 #include "armVC.h" 23 24 25 /** 26 * Function: omxVCM4P10_DeblockLuma_I (6.3.3.3.5) 27 * 28 * Description: 29 * This function performs in-place deblock filtering the horizontal and 30 * vertical edges of a luma macroblock (16x16). 31 * 32 * Input Arguments: 33 * 34 * pSrcDst - pointer to the input macroblock; must be 16-byte aligned. 35 * srcdstStep - image width; must be a multiple of 16. 36 * pAlpha - pointer to a 2x2 table of alpha thresholds, organized as 37 * follows: {external vertical edge, internal vertical edge, 38 * external horizontal edge, internal horizontal edge }. Per 39 * [ISO14496-10] alpha values must be in the range [0,255]. 40 * pBeta - pointer to a 2x2 table of beta thresholds, organized as follows: 41 * {external vertical edge, internal vertical edge, external 42 * horizontal edge, internal horizontal edge }. Per [ISO14496-10] 43 * beta values must be in the range [0,18]. 44 * pThresholds - pointer to a 16x2 table of threshold (TC0), organized as 45 * follows: {values for the left or above edge of each 4x4 block, 46 * arranged in vertical block order and then in horizontal block 47 * order}; must be aligned on a 4-byte boundary. Per [ISO14496-10] 48 * values must be in the range [0,25]. 49 * pBS - pointer to a 16x2 table of BS parameters arranged in scan block 50 * order for vertical edges and then horizontal edges; valid in the 51 * range [0,4] with the following restrictions: i) pBS[i]== 4 may 52 * occur only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^3]== 53 * 4. Must be 4-byte aligned. 54 * 55 * Output Arguments: 56 * 57 * pSrcDst - pointer to filtered output macroblock. 58 * 59 * Return Value: 60 * 61 * OMX_Sts_NoErr - no error 62 * OMX_Sts_BadArgErr - bad arguments 63 * - one or more of the following pointers is NULL: pSrcDst, pAlpha, 64 * pBeta, pThresholds or pBS. pSrcDst is not 16-byte aligned. 65 * either pThresholds or pBS is not aligned on a 4-byte boundary. 66 * - one or more entries in the table pAlpha[0..3] is outside the range 67 * [0,255]. 68 * - one or more entries in the table pBeta[0..3] is outside the range 69 * [0,18]. 70 * - one or more entries in the table pThresholds[0..31]is outside of 71 * the range [0,25]. 72 * - pBS is out of range, i.e., one of the following conditions is true: 73 * pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or 74 * (pBS[i]==4 && pBS[i^3]!=4) for 0<=i<=3. 75 * - srcdstStep is not a multiple of 16. 76 * 77 */ 78 79 OMXResult omxVCM4P10_DeblockLuma_I( 80 OMX_U8* pSrcDst, 81 OMX_S32 srcdstStep, 82 const OMX_U8* pAlpha, 83 const OMX_U8* pBeta, 84 const OMX_U8* pThresholds, 85 const OMX_U8 *pBS 86 ) 87 { 88 OMXResult errorCode; 89 90 armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr); 91 armRetArgErrIf(armNot16ByteAligned(pSrcDst), OMX_Sts_BadArgErr); 92 armRetArgErrIf(srcdstStep & 15, OMX_Sts_BadArgErr); 93 armRetArgErrIf(pAlpha == NULL, OMX_Sts_BadArgErr); 94 armRetArgErrIf(pBeta == NULL, OMX_Sts_BadArgErr); 95 armRetArgErrIf(pThresholds == NULL, OMX_Sts_BadArgErr); 96 armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr); 97 armRetArgErrIf(pBS == NULL, OMX_Sts_BadArgErr); 98 armRetArgErrIf(armNot4ByteAligned(pBS), OMX_Sts_BadArgErr); 99 100 errorCode = omxVCM4P10_FilterDeblockingLuma_VerEdge_I( 101 pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS); 102 103 armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode) 104 105 errorCode = omxVCM4P10_FilterDeblockingLuma_HorEdge_I( 106 pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+16, pBS+16); 107 108 return errorCode; 109 } 110
