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 | #ifndef RC_RD_MODEL_STRUCT |
| 22 | #define RC_RD_MODEL_STRUCT |
| 23 | |
| 24 | /*Enable or diable QUAD model*/ |
| 25 | #define ENABLE_QUAD_RC_MODEL 0 |
| 26 | #define ENABLE_LIN_MODEL_WITH_INTERCEPT 0 |
| 27 | |
| 28 | /* Number of elements for QP */ |
| 29 | #define MPEG2_QP_ELEM (MAX_MPEG2_QP + 1) |
| 30 | |
| 31 | |
| 32 | #if ENABLE_QUAD_RC_MODEL |
| 33 | #define QUAD 1 |
| 34 | #define MIN_FRAMES_FOR_QUAD_MODEL 5 |
| 35 | #endif |
| 36 | |
| 37 | #define MAX_ACTIVE_FRAMES 16 |
| 38 | #define MIN_FRAMES_FOR_LIN_MODEL 3 |
| 39 | #define INVALID_FRAME_INDEX 255 |
| 40 | |
| 41 | #define UP_THR_SM 1 /* (1 /pow(2,4) = 0.0625 */ |
| 42 | #define UP_THR_E 4 |
| 43 | |
| 44 | #define LO_THR_SM 368 /* (368.64 / pow(2,14)) = 0.0225 */ |
| 45 | #define LO_THR_E 14 |
| 46 | |
| 47 | #define LIN_DEV_THR_SM 1 /* (1 / pow(1,2)) = .25*/ |
| 48 | #define LIN_DEV_THR_E 2 |
| 49 | |
| 50 | #define PREV_FRAME_MODEL 2 |
| 51 | |
| 52 | /* Q Factors used for fixed point calculation */ |
| 53 | #define Q_FORMAT_GAMMA 8 |
| 54 | #define Q_FORMAT_ETA 8 |
| 55 | |
| 56 | typedef struct rc_rd_model_t |
| 57 | { |
| 58 | UWORD8 u1_curr_frm_counter; |
| 59 | UWORD8 u1_num_frms_in_model; |
| 60 | UWORD8 u1_max_frms_to_model; |
| 61 | UWORD8 u1_model_used; |
| 62 | |
| 63 | UWORD32 pi4_res_bits[MAX_FRAMES_MODELLED]; |
| 64 | UWORD32 pi4_sad[MAX_FRAMES_MODELLED]; |
| 65 | |
| 66 | UWORD8 pu1_num_skips[MAX_FRAMES_MODELLED]; |
| 67 | UWORD8 pu1_avg_qp[MAX_FRAMES_MODELLED]; |
| 68 | UWORD8 au1_num_frames[MPEG2_QP_ELEM]; |
| 69 | |
| 70 | model_coeff model_coeff_a_lin_wo_int; |
| 71 | model_coeff model_coeff_b_lin_wo_int; |
| 72 | model_coeff model_coeff_c_lin_wo_int; |
| 73 | } rc_rd_model_t; |
| 74 | |
| 75 | #endif /* RC_RD_MODEL_STRUCT */ |