| /* |
| * Copyright (C) 2007-2008 ARM Limited |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| /** |
| * |
| * File Name: armVCM4P2_CompareMV.c |
| * OpenMAX DL: v1.0.2 |
| * Revision: 9641 |
| * Date: Thursday, February 7, 2008 |
| * |
| * |
| * |
| * |
| * Description: |
| * Contains module for comparing motion vectors and SAD's to decide |
| * the best MV and SAD |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| |
| #include "armVC.h" |
| #include "armCOMM.h" |
| |
| /** |
| * Function: armVCM4P2_CompareMV |
| * |
| * Description: |
| * Performs comparision of motion vectors and SAD's to decide the |
| * best MV and SAD |
| * |
| * Remarks: |
| * |
| * Parameters: |
| * [in] mvX x coordinate of the candidate motion vector |
| * [in] mvY y coordinate of the candidate motion vector |
| * [in] candSAD Candidate SAD |
| * [in] bestMVX x coordinate of the best motion vector |
| * [in] bestMVY y coordinate of the best motion vector |
| * [in] bestSAD best SAD |
| * |
| * Return Value: |
| * OMX_INT -- 1 to indicate that the current sad is the best |
| * 0 to indicate that it is NOT the best SAD |
| */ |
| |
| OMX_INT armVCM4P2_CompareMV ( |
| OMX_S16 mvX, |
| OMX_S16 mvY, |
| OMX_INT candSAD, |
| OMX_S16 bestMVX, |
| OMX_S16 bestMVY, |
| OMX_INT bestSAD |
| ) |
| { |
| if (candSAD < bestSAD) |
| { |
| return 1; |
| } |
| if (candSAD > bestSAD) |
| { |
| return 0; |
| } |
| /* shorter motion vector */ |
| if ( (mvX * mvX + mvY * mvY) < (bestMVX*bestMVX+bestMVY*bestMVY) ) |
| { |
| return 1; |
| } |
| return 0; |
| } |
| |
| /*End of File*/ |
