| Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 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_ |