1 /* 2 * Copyright (C) 2007-2008 ARM Limited 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 * 16 */ 17 /* ---------------------------------------------------------------- 18 * 19 * 20 * File Name: omxVCM4P10_DeblockLuma_I.c 21 * OpenMAX DL: v1.0.2 22 * Revision: 9641 23 * Date: Thursday, February 7, 2008 24 * 25 * 26 * 27 * 28 * H.264 luma deblock 29 * 30 */ 31 32 #include "omxtypes.h" 33 #include "armOMX.h" 34 #include "omxVC.h" 35 36 #include "armCOMM.h" 37 #include "armVC.h" 38 39 40 /** 41 * Function: omxVCM4P10_DeblockLuma_I (6.3.3.3.5) 42 * 43 * Description: 44 * This function performs in-place deblock filtering the horizontal and 45 * vertical edges of a luma macroblock (16x16). 46 * 47 * Input Arguments: 48 * 49 * pSrcDst - pointer to the input macroblock; must be 16-byte aligned. 50 * srcdstStep - image width; must be a multiple of 16. 51 * pAlpha - pointer to a 2x2 table of alpha thresholds, organized as 52 * follows: {external vertical edge, internal vertical edge, 53 * external horizontal edge, internal horizontal edge }. Per 54 * [ISO14496-10] alpha values must be in the range [0,255]. 55 * pBeta - pointer to a 2x2 table of beta thresholds, organized as follows: 56 * {external vertical edge, internal vertical edge, external 57 * horizontal edge, internal horizontal edge }. Per [ISO14496-10] 58 * beta values must be in the range [0,18]. 59 * pThresholds - pointer to a 16x2 table of threshold (TC0), organized as 60 * follows: {values for the left or above edge of each 4x4 block, 61 * arranged in vertical block order and then in horizontal block 62 * order}; must be aligned on a 4-byte boundary. Per [ISO14496-10] 63 * values must be in the range [0,25]. 64 * pBS - pointer to a 16x2 table of BS parameters arranged in scan block 65 * order for vertical edges and then horizontal edges; valid in the 66 * range [0,4] with the following restrictions: i) pBS[i]== 4 may 67 * occur only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^3]== 68 * 4. Must be 4-byte aligned. 69 * 70 * Output Arguments: 71 * 72 * pSrcDst - pointer to filtered output macroblock. 73 * 74 * Return Value: 75 * 76 * OMX_Sts_NoErr - no error 77 * OMX_Sts_BadArgErr - bad arguments 78 * - one or more of the following pointers is NULL: pSrcDst, pAlpha, 79 * pBeta, pThresholds or pBS. pSrcDst is not 16-byte aligned. 80 * either pThresholds or pBS is not aligned on a 4-byte boundary. 81 * - one or more entries in the table pAlpha[0..3] is outside the range 82 * [0,255]. 83 * - one or more entries in the table pBeta[0..3] is outside the range 84 * [0,18]. 85 * - one or more entries in the table pThresholds[0..31]is outside of 86 * the range [0,25]. 87 * - pBS is out of range, i.e., one of the following conditions is true: 88 * pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or 89 * (pBS[i]==4 && pBS[i^3]!=4) for 0<=i<=3. 90 * - srcdstStep is not a multiple of 16. 91 * 92 */ 93 94 OMXResult omxVCM4P10_DeblockLuma_I( 95 OMX_U8* pSrcDst, 96 OMX_S32 srcdstStep, 97 const OMX_U8* pAlpha, 98 const OMX_U8* pBeta, 99 const OMX_U8* pThresholds, 100 const OMX_U8 *pBS 101 ) 102 { 103 OMXResult errorCode; 104 105 armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr); 106 armRetArgErrIf(armNot16ByteAligned(pSrcDst), OMX_Sts_BadArgErr); 107 armRetArgErrIf(srcdstStep & 15, OMX_Sts_BadArgErr); 108 armRetArgErrIf(pAlpha == NULL, OMX_Sts_BadArgErr); 109 armRetArgErrIf(pBeta == NULL, OMX_Sts_BadArgErr); 110 armRetArgErrIf(pThresholds == NULL, OMX_Sts_BadArgErr); 111 armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr); 112 armRetArgErrIf(pBS == NULL, OMX_Sts_BadArgErr); 113 armRetArgErrIf(armNot4ByteAligned(pBS), OMX_Sts_BadArgErr); 114 115 errorCode = omxVCM4P10_FilterDeblockingLuma_VerEdge_I( 116 pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS); 117 118 armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode) 119 120 errorCode = omxVCM4P10_FilterDeblockingLuma_HorEdge_I( 121 pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+16, pBS+16); 122 123 return errorCode; 124 } 125
