1 /****************************************************************************** 2 * 3 * Copyright (C) 2022 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 /** 22 ******************************************************************************* 23 * @file 24 * isvce_mc.h 25 * 26 * @brief 27 * This file contains declarations of routines that perform motion compensation 28 * of luma and chroma macroblocks. 29 * 30 * @author 31 * ittiam 32 * 33 * @remarks 34 * none 35 * 36 ******************************************************************************* 37 */ 38 #ifndef _ISVCE_MC_H_ 39 #define _ISVCE_MC_H_ 40 41 /** 42 ****************************************************************************** 43 * 44 * @brief 45 * performs motion compensation for a luma mb for the given mv. 46 * 47 * @par Description 48 * This routine performs motion compensation of an inter mb. When the inter 49 * mb mode is P16x16, there is no need to copy 16x16 unit from reference buffer 50 * to pred buffer. In this case the function returns pointer and stride of the 51 * ref. buffer and this info is used in place of pred buffer else where. 52 * In other cases, the pred buffer is populated via copy / filtering + copy 53 * (q pel cases) and returned. 54 * 55 * @param[in] ps_proc 56 * pointer to current proc ctxt 57 * 58 * @return none 59 * 60 * @remarks Assumes half pel buffers for the entire frame are populated. 61 * 62 ****************************************************************************** 63 */ 64 extern void isvce_motion_comp_luma(isvce_process_ctxt_t *ps_proc, buffer_container_t *ps_pred); 65 66 /** 67 ****************************************************************************** 68 * 69 * @brief 70 * performs motion compensation for chroma mb 71 * 72 * @par Description 73 * Copies a MB of data from the reference buffer (Full pel, half pel or q pel) 74 * according to the motion vectors given 75 * 76 * @param[in] ps_proc 77 * pointer to current proc ctxt 78 * 79 * @return none 80 * 81 * @remarks Assumes half pel and quarter pel buffers for the entire frame are 82 * populated. 83 ****************************************************************************** 84 */ 85 extern void isvce_motion_comp_chroma(isvce_process_ctxt_t *ps_proc, buffer_container_t *ps_pred); 86 87 #endif 88