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 isvc_cabac_tables.h 24 * 25 * @brief 26 * This file contains enumerations, macros and extern declarations of H264 27 * cabac tables 28 * 29 * @author 30 * Ittiam 31 * 32 * @remarks 33 * none 34 ****************************************************************************** 35 */ 36 37 #ifndef _ISVC_CABAC_TABLES_H_ 38 #define _ISVC_CABAC_TABLES_H_ 39 40 #include "ih264_cabac_tables.h" 41 /** 42 ****************************************************************************** 43 * @brief max range of cabac contexts in H264 (0-459) 44 ****************************************************************************** 45 */ 46 #define NUM_SVC_CABAC_CTXTS 467 47 48 extern const UWORD32 (*gau4_isvc_cabac_table)[4]; 49 50 /*****************************************************************************/ 51 /* Cabac tables for context initialization depending upon type of Slice, */ 52 /* cabac init Idc value and Qp. */ 53 /*****************************************************************************/ 54 extern const UWORD8 gau1_isvc_cabac_ctxt_init_table[NUM_CAB_INIT_IDC_PLUS_ONE][QP_RANGE] 55 [NUM_SVC_CABAC_CTXTS]; 56 57 #endif 58