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 * File Name: omxVCM4P10_InterpolateChroma.c 20 * OpenMAX DL: v1.0.2 21 * Revision: 12290 22 * Date: Wednesday, April 9, 2008 23 * 24 * 25 * 26 * Description: 27 * This function will calculate 1/8 Pixel interpolation for Chroma Block 28 * 29 */ 30 31 #include "omxtypes.h" 32 #include "armOMX.h" 33 #include "omxVC.h" 34 35 #include "armVC.h" 36 #include "armCOMM.h" 37 38 39 /** 40 * Function: omxVCM4P10_InterpolateChroma, 41 * 42 * Description: 43 * Performs 1/8-pixel interpolation for inter chroma MB. 44 * 45 * Remarks: 46 * 47 * Parameters: 48 * [in] pSrc Pointer to the source reference frame buffer 49 * [in] srcStep Reference frame step in byte 50 * [in] dstStep Destination frame step in byte. Must be multiple of roi.width. 51 * [in] dx Fractional part of horizontal motion vector component 52 * in 1/8 pixel unit;valid in the range [0,7] 53 * [in] dy Fractional part of vertical motion vector component 54 * in 1/8 pixel unit;valid in the range [0,7] 55 * [in] roi Dimension of the interpolation region;the parameters roi.width and roi.height must 56 * be equal to either 2, 4, or 8. 57 * [out] pDst Pointer to the destination frame buffer. 58 * if roi.width==2, 2-byte alignment required 59 * if roi.width==4, 4-byte alignment required 60 * if roi.width==8, 8-byte alignment required 61 * 62 * Return Value: 63 * If the function runs without error, it returns OMX_Sts_NoErr. 64 * If one of the following cases occurs, the function returns OMX_Sts_BadArgErr: 65 * pSrc or pDst is NULL. 66 * srcStep or dstStep < 8. 67 * dx or dy is out of range [0-7]. 68 * roi.width or roi.height is out of range {2,4,8}. 69 * roi.width is equal to 2, but pDst is not 2-byte aligned. 70 * roi.width is equal to 4, but pDst is not 4-byte aligned. 71 * roi.width is equal to 8, but pDst is not 8 byte aligned. 72 * srcStep or dstStep is not a multiple of 8. 73 * 74 */ 75 76 OMXResult omxVCM4P10_InterpolateChroma ( 77 const OMX_U8* pSrc, 78 OMX_S32 srcStep, 79 OMX_U8* pDst, 80 OMX_S32 dstStep, 81 OMX_S32 dx, 82 OMX_S32 dy, 83 OMXSize roi 84 ) 85 { 86 return armVCM4P10_Interpolate_Chroma 87 ((OMX_U8*)pSrc, srcStep, pDst, dstStep, roi.width, roi.height, dx, dy); 88 } 89 90 91 /***************************************************************************** 92 * END OF FILE 93 *****************************************************************************/ 94 95
