|
|
/******************************************************************************
|
|
|
*
|
|
|
* Copyright (C) 2015 The Android Open Source Project
|
|
|
*
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
* you may not use this file except in compliance with the License.
|
|
|
* You may obtain a copy of the License at:
|
|
|
*
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
*
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
* See the License for the specific language governing permissions and
|
|
|
* limitations under the License.
|
|
|
*
|
|
|
*****************************************************************************
|
|
|
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
|
|
|
*/
|
|
|
/**
|
|
|
*******************************************************************************
|
|
|
* @file
|
|
|
* ih264_deblk_tables.c
|
|
|
*
|
|
|
* @brief
|
|
|
* Contains tables used for deblocking
|
|
|
*
|
|
|
* @author
|
|
|
* Ittiam
|
|
|
*
|
|
|
* @par List of Tables:
|
|
|
* - guc_ih264_qp_scale_cr[]
|
|
|
* - guc_ih264_alpha_table[]
|
|
|
* - guc_ih264_beta_table[]
|
|
|
* - guc_ih264_clip_table[][]
|
|
|
*
|
|
|
* @remarks
|
|
|
* None
|
|
|
*
|
|
|
*******************************************************************************
|
|
|
*/
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
/* File Includes */
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
/* System include files */
|
|
|
#include <stdio.h>
|
|
|
|
|
|
/* User include files */
|
|
|
#include "ih264_typedefs.h"
|
|
|
#include "ih264_deblk_tables.h"
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
/* Extern global definitions */
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
/**
|
|
|
******************************************************************************
|
|
|
* @brief alpha & beta tables for deblocking
|
|
|
* input : indexA [0-51] & indexB [0-51]
|
|
|
* output : alpha & beta
|
|
|
*
|
|
|
* @remarks Table 8-16 <20> in H264 Specification,
|
|
|
* Derivation of offset dependent threshold variables
|
|
|
* alpha and beta from indexA and indexB
|
|
|
******************************************************************************
|
|
|
*/
|
|
|
const UWORD8 gu1_ih264_alpha_table[52] =
|
|
|
{
|
|
|
/* indexA :: 0-51 inclusive */
|
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
4, 4, 5, 6, 7, 8, 9, 10,
|
|
|
12, 13, 15, 17, 20, 22, 25, 28,
|
|
|
32, 36, 40, 45, 50, 56, 63, 71,
|
|
|
80, 90, 101, 113, 127, 144, 162, 182,
|
|
|
203, 226, 255, 255,
|
|
|
};
|
|
|
|
|
|
const UWORD8 gu1_ih264_beta_table[52] =
|
|
|
{
|
|
|
/* indexB :: 0-51 inclusive */
|
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
2, 2, 2, 3, 3, 3, 3, 4,
|
|
|
4, 4, 6, 6, 7, 7, 8, 8,
|
|
|
9, 9, 10, 10, 11, 11, 12, 12,
|
|
|
13, 13, 14, 14, 15, 15, 16, 16,
|
|
|
17, 17, 18, 18,
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
******************************************************************************
|
|
|
* @brief t'C0 table for deblocking
|
|
|
* input : indexA [0-51] and bS [1,3]
|
|
|
* output : t'C0
|
|
|
*
|
|
|
* @remarks Table 8-17 <20> in H264 Specification,
|
|
|
* Value of variable t'C0 as a function of indexA and bS
|
|
|
******************************************************************************
|
|
|
*/
|
|
|
const UWORD8 gu1_ih264_clip_table[52][4] =
|
|
|
{
|
|
|
/* indexA :: 0-51 inclusive */
|
|
|
{ 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0},
|
|
|
{ 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0},
|
|
|
{ 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0},
|
|
|
{ 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0}, { 0, 0, 0, 0},
|
|
|
{ 0, 0, 0, 0}, { 0, 0, 0, 1}, { 0, 0, 0, 1}, { 0, 0, 0, 1},
|
|
|
{ 0, 0, 0, 1}, { 0, 0, 1, 1}, { 0, 0, 1, 1}, { 0, 1, 1, 1},
|
|
|
{ 0, 1, 1, 1}, { 0, 1, 1, 1}, { 0, 1, 1, 1}, { 0, 1, 1, 2},
|
|
|
{ 0, 1, 1, 2}, { 0, 1, 1, 2}, { 0, 1, 1, 2}, { 0, 1, 2, 3},
|
|
|
{ 0, 1, 2, 3}, { 0, 2, 2, 3}, { 0, 2, 2, 4}, { 0, 2, 3, 4},
|
|
|
{ 0, 2, 3, 4}, { 0, 3, 3, 5}, { 0, 3, 4, 6}, { 0, 3, 4, 6},
|
|
|
{ 0, 4, 5, 7}, { 0, 4, 5, 8}, { 0, 4, 6, 9}, { 0, 5, 7,10},
|
|
|
{ 0, 6, 8,11}, { 0, 6, 8,13}, { 0, 7,10,14}, { 0, 8,11,16},
|
|
|
{ 0, 9,12,18}, { 0,10,13,20}, { 0,11,15,23}, { 0,13,17,25},
|
|
|
};
|
