1 /* ---------------------------------------------------------------- 2 * 3 * 4 * File Name: omxVCM4P10_DeblockChroma_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 intra chroma 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 * Function: omxVCM4P10_DeblockChroma_I (6.3.3.3.6) 26 * 27 * Description: 28 * Performs in-place deblocking filtering on all edges of the chroma 29 * macroblock (16x16). 30 * 31 * Input Arguments: 32 * 33 * pSrcDst - pointer to the input macroblock; must be 8-byte aligned. 34 * srcdstStep - step of the arrays; must be a multiple of 8. 35 * pAlpha - pointer to a 2x2 array of alpha thresholds, organized as 36 * follows: {external vertical edge, internal vertical edge, 37 * external horizontal edge, internal horizontal edge }. Per 38 * [ISO14496-10] alpha values must be in the range [0,255]. 39 * pBeta - pointer to a 2x2 array of Beta Thresholds, organized as follows: 40 * { external vertical edge, internal vertical edge, external 41 * horizontal edge, internal horizontal edge }. Per [ISO14496-10] 42 * beta values must be in the range [0,18]. 43 * pThresholds - array of size 8x2 of Thresholds (TC0) (values for the left 44 * or above edge of each 4x2 or 2x4 block, arranged in vertical 45 * block order and then in horizontal block order); must be aligned 46 * on a 4-byte boundary. Per [ISO14496-10] values must be in the 47 * range [0,25]. 48 * pBS - array of size 16x2 of BS parameters (arranged in scan block order 49 * for vertical edges and then horizontal edges); valid in the 50 * range [0,4] with the following restrictions: i) pBS[i]== 4 may 51 * occur only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^3]== 52 * 4. Must be 4-byte aligned. 53 * 54 * Output Arguments: 55 * 56 * pSrcDst - pointer to filtered output macroblock. 57 * 58 * Return Value: 59 * 60 * OMX_Sts_NoErr - no error 61 * OMX_Sts_BadArgErr - bad arguments 62 * - one or more of the following pointers is NULL: pSrcDst, pAlpha, 63 * pBeta, pThresholds, or pBS. pSrcDst is not 8-byte aligned. 64 * either pThresholds or pBS is not 4-byte aligned. 65 * - one or more entries in the table pAlpha[0..3] is outside the range 66 * [0,255]. 67 * - one or more entries in the table pBeta[0..3] is outside the range 68 * [0,18]. 69 * - one or more entries in the table pThresholds[0..15]is outside of 70 * the range [0,25]. 71 * - pBS is out of range, i.e., one of the following conditions is true: 72 * pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or 73 * (pBS[i]==4 && pBS[i^3]!=4) for 0<=i<=3. 74 * - srcdstStep is not a multiple of 8. 75 * 76 */ 77 OMXResult omxVCM4P10_DeblockChroma_I( 78 OMX_U8* pSrcDst, 79 OMX_S32 srcdstStep, 80 const OMX_U8* pAlpha, 81 const OMX_U8* pBeta, 82 const OMX_U8* pThresholds, 83 const OMX_U8 *pBS 84 ) 85 { 86 OMXResult errorCode; 87 88 armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr); 89 armRetArgErrIf(armNot8ByteAligned(pSrcDst), OMX_Sts_BadArgErr); 90 armRetArgErrIf(srcdstStep & 7, OMX_Sts_BadArgErr); 91 armRetArgErrIf(pAlpha == NULL, OMX_Sts_BadArgErr); 92 armRetArgErrIf(pBeta == NULL, OMX_Sts_BadArgErr); 93 armRetArgErrIf(pThresholds == NULL, OMX_Sts_BadArgErr); 94 armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr); 95 armRetArgErrIf(pBS == NULL, OMX_Sts_BadArgErr); 96 armRetArgErrIf(armNot4ByteAligned(pBS), OMX_Sts_BadArgErr); 97 98 errorCode = omxVCM4P10_FilterDeblockingChroma_VerEdge_I( 99 pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS); 100 101 armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode) 102 103 errorCode = omxVCM4P10_FilterDeblockingChroma_HorEdge_I( 104 pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+8, pBS+16); 105 106 return errorCode; 107 } 108
