omxVCM4P10_DeblockLuma_I.c revision 78e52bfac041d71ce53b5b13c2abf78af742b09d
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: 12290 23 * Date: Wednesday, April 9, 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 42 * 43 * Description: 44 * This function performs deblock filtering the horizontal and vertical edges of a luma macroblock 45 *(16x16). 46 * 47 * Remarks: 48 * 49 * Parameters: 50 * [in] pSrcDst pointer to the input macroblock. Must be 8-byte aligned. 51 * [in] srcdstStep image width 52 * [in] pAlpha pointer to a 2x2 table of alpha thresholds, organized as follows: { external 53 * vertical edge, internal vertical edge, external horizontal 54 * edge, internal horizontal edge } 55 * [in] pBeta pointer to a 2x2 table of beta thresholds, organized as follows: { external 56 * vertical edge, internal vertical edge, external horizontal edge, 57 * internal horizontal edge } 58 * [in] pThresholds pointer to a 16x2 table of threshold (TC0), organized as follows: { values for 59 * the left or above edge of each 4x4 block, arranged in vertical block order 60 * and then in horizontal block order) 61 * [in] pBS pointer to a 16x2 table of BS parameters arranged in scan block order for vertical edges and then horizontal edges; 62 * 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^1]== 4. Must be 4-byte aligned. 63 * [out] pSrcDst pointer to filtered output macroblock. 64 * 65 * Return Value: 66 * OMX_Sts_NoErr - no error 67 * OMX_Sts_BadArgErr - bad arguments 68 * - Either of the pointers in pSrcDst, pAlpha, pBeta, pTresholds or pBS is NULL. 69 * - pSrcDst is not 8-byte aligned. 70 * - srcdstStep is not a multiple of 8 71 * - 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^1]!=4) for 0<=i<=3. 72. 73 * 74 */ 75 76OMXResult omxVCM4P10_DeblockLuma_I( 77 OMX_U8* pSrcDst, 78 OMX_S32 srcdstStep, 79 const OMX_U8* pAlpha, 80 const OMX_U8* pBeta, 81 const OMX_U8* pThresholds, 82 const OMX_U8 *pBS 83) 84{ 85 OMXResult errorCode; 86 87 armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr); 88 armRetArgErrIf(armNot8ByteAligned(pSrcDst), OMX_Sts_BadArgErr); 89 armRetArgErrIf(srcdstStep & 7, OMX_Sts_BadArgErr); 90 armRetArgErrIf(pAlpha == NULL, OMX_Sts_BadArgErr); 91 armRetArgErrIf(pBeta == NULL, OMX_Sts_BadArgErr); 92 armRetArgErrIf(pThresholds == NULL, OMX_Sts_BadArgErr); 93 armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr); 94 armRetArgErrIf(pBS == NULL, OMX_Sts_BadArgErr); 95 armRetArgErrIf(armNot4ByteAligned(pBS), OMX_Sts_BadArgErr); 96 97 errorCode = omxVCM4P10_FilterDeblockingLuma_VerEdge_I( 98 pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS); 99 100 armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode) 101 102 errorCode = omxVCM4P10_FilterDeblockingLuma_HorEdge_I( 103 pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+16, pBS+16); 104 105 return errorCode; 106} 107