1 /** 2 * 3 * File Name: omxVCM4P2_MEInit.c 4 * OpenMAX DL: v1.0.2 5 * Revision: 9641 6 * Date: Thursday, February 7, 2008 7 * 8 * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. 9 * 10 * 11 * 12 * Description: 13 * Initialization modules for the vendor specific Motion Estimation structure. 14 * 15 */ 16 17 #include "omxtypes.h" 18 #include "armOMX.h" 19 #include "omxVC.h" 20 21 #include "armVC.h" 22 #include "armCOMM.h" 23 24 /** 25 * Function: omxVCM4P2_MEInit (6.2.4.1.2) 26 * 27 * Description: 28 * Initializes the vendor-specific specification structure required for the 29 * following motion estimation functions: BlockMatch_Integer_8x8, 30 * BlockMatch_Integer_16x16, and MotionEstimationMB. Memory for the 31 * specification structure *pMESpec must be allocated prior to calling the 32 * function, and should be aligned on a 4-byte boundary. Following 33 * initialization by this function, the vendor-specific structure *pMESpec 34 * should contain an implementation-specific representation of all motion 35 * estimation parameters received via the structure pMEParams, for example 36 * rndVal, searchRange, etc. The number of bytes required for the 37 * specification structure can be determined using the function 38 * omxVCM4P2_MEGetBufSize. 39 * 40 * Input Arguments: 41 * 42 * MEmode - motion estimation mode; available modes are defined by the 43 * enumerated type OMXVCM4P2MEMode 44 * pMEParams - motion estimation parameters 45 * pMESpec - pointer to the uninitialized ME specification structure 46 * 47 * Output Arguments: 48 * 49 * pMESpec - pointer to the initialized ME specification structure 50 * 51 * Return Value: 52 * 53 * OMX_Sts_NoErr - no error 54 * OMX_Sts_BadArgErr - one or more of the following is true: 55 * - an invalid value was specified for the parameter MEmode 56 * - a negative or zero value was specified for the 57 * parameter pMEParams->searchRange 58 * 59 */ 60 61 OMXResult omxVCM4P2_MEInit( 62 OMXVCM4P2MEMode MEMode, 63 const OMXVCM4P2MEParams *pMEParams, 64 void *pMESpec 65 ) 66 { 67 ARMVCM4P2_MESpec *armMESpec = (ARMVCM4P2_MESpec *) pMESpec; 68 69 armRetArgErrIf(!pMEParams, OMX_Sts_BadArgErr); 70 armRetArgErrIf(!pMESpec, OMX_Sts_BadArgErr); 71 armRetArgErrIf((MEMode != OMX_VC_M4P2_FAST_SEARCH) && 72 (MEMode != OMX_VC_M4P2_FULL_SEARCH), OMX_Sts_BadArgErr); 73 armRetArgErrIf(pMEParams->searchRange <= 0, OMX_Sts_BadArgErr); 74 75 armMESpec->MEParams.searchEnable8x8 = pMEParams->searchEnable8x8; 76 armMESpec->MEParams.halfPelSearchEnable = pMEParams->halfPelSearchEnable; 77 armMESpec->MEParams.searchRange = pMEParams->searchRange; 78 armMESpec->MEParams.rndVal = pMEParams->rndVal; 79 armMESpec->MEMode = MEMode; 80 81 return OMX_Sts_NoErr; 82 } 83 84 /* End of file */ 85
