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_DeblockChroma_I.c 21 * OpenMAX DL: v1.0.2 22 * Revision: 9641 23 * Date: Thursday, February 7, 2008 24 * 25 * 26 * 27 * 28 * H.264 intra chroma 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 * Function: omxVCM4P10_DeblockChroma_I (6.3.3.3.6) 41 * 42 * Description: 43 * Performs in-place deblocking filtering on all edges of the chroma 44 * macroblock (16x16). 45 * 46 * Input Arguments: 47 * 48 * pSrcDst - pointer to the input macroblock; must be 8-byte aligned. 49 * srcdstStep - step of the arrays; must be a multiple of 8. 50 * pAlpha - pointer to a 2x2 array of alpha thresholds, organized as 51 * follows: {external vertical edge, internal vertical edge, 52 * external horizontal edge, internal horizontal edge }. Per 53 * [ISO14496-10] alpha values must be in the range [0,255]. 54 * pBeta - pointer to a 2x2 array of Beta Thresholds, organized as follows: 55 * { external vertical edge, internal vertical edge, external 56 * horizontal edge, internal horizontal edge }. Per [ISO14496-10] 57 * beta values must be in the range [0,18]. 58 * pThresholds - array of size 8x2 of Thresholds (TC0) (values for the left 59 * or above edge of each 4x2 or 2x4 block, arranged in vertical 60 * block order and then in horizontal block order); must be aligned 61 * on a 4-byte boundary. Per [ISO14496-10] values must be in the 62 * range [0,25]. 63 * pBS - array of size 16x2 of BS parameters (arranged in scan block order 64 * for vertical edges and then horizontal edges); valid in the 65 * range [0,4] with the following restrictions: i) pBS[i]== 4 may 66 * occur only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^3]== 67 * 4. Must be 4-byte aligned. 68 * 69 * Output Arguments: 70 * 71 * pSrcDst - pointer to filtered output macroblock. 72 * 73 * Return Value: 74 * 75 * OMX_Sts_NoErr - no error 76 * OMX_Sts_BadArgErr - bad arguments 77 * - one or more of the following pointers is NULL: pSrcDst, pAlpha, 78 * pBeta, pThresholds, or pBS. pSrcDst is not 8-byte aligned. 79 * either pThresholds or pBS is not 4-byte aligned. 80 * - one or more entries in the table pAlpha[0..3] is outside the range 81 * [0,255]. 82 * - one or more entries in the table pBeta[0..3] is outside the range 83 * [0,18]. 84 * - one or more entries in the table pThresholds[0..15]is outside of 85 * the range [0,25]. 86 * - pBS is out of range, i.e., one of the following conditions is true: 87 * pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or 88 * (pBS[i]==4 && pBS[i^3]!=4) for 0<=i<=3. 89 * - srcdstStep is not a multiple of 8. 90 * 91 */ 92 OMXResult omxVCM4P10_DeblockChroma_I( 93 OMX_U8* pSrcDst, 94 OMX_S32 srcdstStep, 95 const OMX_U8* pAlpha, 96 const OMX_U8* pBeta, 97 const OMX_U8* pThresholds, 98 const OMX_U8 *pBS 99 ) 100 { 101 OMXResult errorCode; 102 103 armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr); 104 armRetArgErrIf(armNot8ByteAligned(pSrcDst), OMX_Sts_BadArgErr); 105 armRetArgErrIf(srcdstStep & 7, OMX_Sts_BadArgErr); 106 armRetArgErrIf(pAlpha == NULL, OMX_Sts_BadArgErr); 107 armRetArgErrIf(pBeta == NULL, OMX_Sts_BadArgErr); 108 armRetArgErrIf(pThresholds == NULL, OMX_Sts_BadArgErr); 109 armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr); 110 armRetArgErrIf(pBS == NULL, OMX_Sts_BadArgErr); 111 armRetArgErrIf(armNot4ByteAligned(pBS), OMX_Sts_BadArgErr); 112 113 errorCode = omxVCM4P10_FilterDeblockingChroma_VerEdge_I( 114 pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS); 115 116 armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode) 117 118 errorCode = omxVCM4P10_FilterDeblockingChroma_HorEdge_I( 119 pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+8, pBS+16); 120 121 return errorCode; 122 } 123
