1 /****************************************************************************** 2 * 3 * Copyright (C) 2015 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 * ih264e_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 39 #ifndef IH264E_MC_H_ 40 #define IH264E_MC_H_ 41 42 /*****************************************************************************/ 43 /* Extern Function Declarations */ 44 /*****************************************************************************/ 45 46 /** 47 ****************************************************************************** 48 * 49 * @brief 50 * performs motion compensation for a luma mb for the given mv. 51 * 52 * @par Description 53 * This routine performs motion compensation of an inter mb. When the inter 54 * mb mode is P16x16, there is no need to copy 16x16 unit from reference buffer 55 * to pred buffer. In this case the function returns pointer and stride of the 56 * ref. buffer and this info is used in place of pred buffer else where. 57 * In other cases, the pred buffer is populated via copy / filtering + copy 58 * (q pel cases) and returned. 59 * 60 * @param[in] ps_proc 61 * pointer to current proc ctxt 62 * 63 * @param[out] pu1_pseudo_pred 64 * pseudo prediction buffer 65 * 66 * @param[out] u4_pseudo_pred_strd 67 * pseudo pred buffer stride 68 * 69 * @return none 70 * 71 * @remarks Assumes half pel buffers for the entire frame are populated. 72 * 73 ****************************************************************************** 74 */ 75 void ih264e_motion_comp_luma(process_ctxt_t *ps_proc, 76 UWORD8 **pu1_pseudo_pred, 77 WORD32 *pi4_pseudo_pred_strd); 78 79 /** 80 ****************************************************************************** 81 * 82 * @brief 83 * performs motion compensation for chroma mb 84 * 85 * @par Description 86 * Copies a MB of data from the reference buffer (Full pel, half pel or q pel) 87 * according to the motion vectors given 88 * 89 * @param[in] ps_proc 90 * pointer to current proc ctxt 91 * 92 * @return none 93 * 94 * @remarks Assumes half pel and quarter pel buffers for the entire frame are 95 * populated. 96 ****************************************************************************** 97 */ 98 void ih264e_motion_comp_chroma 99 ( 100 process_ctxt_t *ps_proc 101 ); 102 103 104 #endif // IH264E_MC_H_ 105
