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v811_spc009/external/libavc/common/ih264_common_tables.c

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/******************************************************************************
*
* 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_common_tables.c
*
* @brief
* Contains common global tables
*
* @author
* Harish M
*
* @par List of Functions:
*
* @remarks
* None
*
*******************************************************************************
*/
/*****************************************************************************/
/* File Includes */
/*****************************************************************************/
/* User include files */
#include "ih264_typedefs.h"
#include "ih264_defs.h"
#include "ih264_macros.h"
#include "ih264_structs.h"
#include "ih264_common_tables.h"
/*****************************************************************************/
/* Extern global definitions */
/*****************************************************************************/
/**
******************************************************************************
* @brief while encoding, basing on the input configuration parameters, the
* the level of the bitstream is computed basing on the table below.
* input : table_idx
* output : level_idc or cpb size
* @remarks Table A-1 <20> level table limits
******************************************************************************
*/
const level_tables_t gas_ih264_lvl_tbl[16] =
{
{ IH264_LEVEL_10, 1485, 99, 297, 64, 175, 64 },
{ IH264_LEVEL_1B, 1485, 99, 297, 128, 350, 64 },
{ IH264_LEVEL_11, 3000, 396, 675, 192, 500, 128 },
{ IH264_LEVEL_12, 6000, 396, 1782, 384, 1000, 128 },
{ IH264_LEVEL_13, 11880, 396, 1782, 768, 2000, 128 },
{ IH264_LEVEL_20, 11880, 396, 1782, 2000, 2000, 128 },
{ IH264_LEVEL_21, 19800, 792, 3564, 4000, 4000, 256 },
{ IH264_LEVEL_22, 20250, 1620, 6075, 4000, 4000, 256 },
{ IH264_LEVEL_30, 40500, 1620, 6075, 10000, 10000, 256 },
{ IH264_LEVEL_31, 108000, 3600, 13500, 14000, 14000, 512 },
{ IH264_LEVEL_32, 216000, 5120, 15360, 20000, 20000, 512 },
{ IH264_LEVEL_40, 245760, 8192, 24576, 20000, 25000, 512 },
{ IH264_LEVEL_41, 245760, 8192, 24576, 50000, 62500, 512 },
{ IH264_LEVEL_42, 522240, 8704, 26112, 50000, 62500, 512 },
{ IH264_LEVEL_50, 589824, 22080, 82800, 135000, 135000, 512 },
{ IH264_LEVEL_51, 983040, 36864, 138240, 240000, 240000, 512 },
};
/**
* Array containing supported levels
*/
const WORD32 gai4_ih264_levels[] =
{
IH264_LEVEL_10,
IH264_LEVEL_11,
IH264_LEVEL_12,
IH264_LEVEL_13,
IH264_LEVEL_20,
IH264_LEVEL_21,
IH264_LEVEL_22,
IH264_LEVEL_30,
IH264_LEVEL_31,
IH264_LEVEL_32,
IH264_LEVEL_40,
IH264_LEVEL_41,
IH264_LEVEL_42,
IH264_LEVEL_50,
IH264_LEVEL_51,
};
/**
* Array giving size of max luma samples in a picture for a given level
*/
const WORD32 gai4_ih264_max_luma_pic_size[] =
{
/* Level 1 */
25344,
/* Level 1.1 */
101376,
/* Level 1.2 */
101376,
/* Level 1.3 */
101376,
/* Level 2 */
101376,
/* Level 2.1 */
202752,
/* Level 2.2 */
414720,
/* Level 3 */
414720,
/* Level 3.1 */
921600,
/* Level 3.2 */
1310720,
/* Level 4 */
2097152,
/* Level 4.1 */
2097152,
/* Level 4.2 */
2228224,
/* Level 5 */
5652480,
/* Level 5.1 */
9437184
};
/** Max width and height allowed for a given level */
/** This is derived as SQRT(8 * gai4_ih264_max_luma_pic_size[]) */
const WORD32 gai4_ih264_max_wd_ht[] =
{
/* Level 1 */
451,
/* Level 1.1 */
901,
/* Level 1.2 */
901,
/* Level 1.3 */
901,
/* Level 2 */
901,
/* Level 2.1 */
1274,
/* Level 2.2 */
1822,
/* Level 3 */
1822,
/* Level 3.1 */
2716,
/* Level 3.2 */
3239,
/* Level 4 */
4096,
/* Level 4.1 */
4096,
/* Level 4.2 */
4223,
/* Level 5 */
6725,
/* Level 5.1 */
8689
};
/** Min width and height allowed for a given level */
/** This is derived as gai4_ih264_max_luma_pic_size[]/gai4_ih264_max_wd_ht[] */
const WORD32 gai4_ih264_min_wd_ht[] =
{
/* Level 1 */
57,
/* Level 1.1 */
113,
/* Level 1.2 */
113,
/* Level 1.3 */
113,
/* Level 2 */
113,
/* Level 2.1 */
160,
/* Level 2.2 */
228,
/* Level 3 */
228,
/* Level 3.1 */
340,
/* Level 3.2 */
405,
/* Level 4 */
512,
/* Level 4.1 */
512,
/* Level 4.2 */
528,
/* Level 5 */
841,
/* Level 5.1 */
1087
};
/** Table 7-11 Macroblock types for I slices */
intra_mbtype_info_t gas_ih264_i_mbtype_info[] =
{
/* For first entry, if transform_size_8x8_flag is 1, mode will be MBPART_I8x8 */
/* This has to be taken care while accessing the table */
{0, MBPART_I4x4, VERT_I16x16, 0, 0},
{0, MBPART_I16x16, VERT_I16x16, 0, 0},
{0, MBPART_I16x16, HORZ_I16x16, 0, 0},
{0, MBPART_I16x16, DC_I16x16, 0, 0},
{0, MBPART_I16x16, PLANE_I16x16, 0, 0},
{0, MBPART_I16x16, VERT_I16x16, 1, 0},
{0, MBPART_I16x16, HORZ_I16x16, 1, 0},
{0, MBPART_I16x16, DC_I16x16, 1, 0},
{0, MBPART_I16x16, PLANE_I16x16, 1, 0},
{0, MBPART_I16x16, VERT_I16x16, 2, 0},
{0, MBPART_I16x16, HORZ_I16x16, 2, 0},
{0, MBPART_I16x16, DC_I16x16, 2, 0},
{0, MBPART_I16x16, PLANE_I16x16, 2, 0},
{0, MBPART_I16x16, VERT_I16x16, 0, 15},
{0, MBPART_I16x16, HORZ_I16x16, 0, 15},
{0, MBPART_I16x16, DC_I16x16, 0, 15},
{0, MBPART_I16x16, PLANE_I16x16, 0, 15},
{0, MBPART_I16x16, VERT_I16x16, 1, 15},
{0, MBPART_I16x16, HORZ_I16x16, 1, 15},
{0, MBPART_I16x16, DC_I16x16, 1, 15},
{0, MBPART_I16x16, PLANE_I16x16, 1, 15},
{0, MBPART_I16x16, VERT_I16x16, 2, 15},
{0, MBPART_I16x16, HORZ_I16x16, 2, 15},
{0, MBPART_I16x16, DC_I16x16, 2, 15},
{0, MBPART_I16x16, PLANE_I16x16, 2, 15},
{0, MBPART_IPCM, VERT_I16x16, 0, 0}
};
/** Table 7-13 Macroblock types for P slices */
inter_mbtype_info_t gas_ih264_p_mbtype_info[] =
{
{1, MBPART_L0, MBPART_NA, 16, 16},
{2, MBPART_L0, MBPART_L0, 16, 8},
{2, MBPART_L0, MBPART_L0, 8, 16},
{4, MBPART_NA, MBPART_NA, 8, 8},
{4, MBPART_NA, MBPART_NA, 8, 8},
};
/** Table 7-14 Macroblock types for B slices */
inter_mbtype_info_t gas_ih264_b_mbtype_info[] =
{
{0, MBPART_DIRECT, MBPART_NA, 8, 8, },
{1, MBPART_L0, MBPART_NA, 16, 16, },
{1, MBPART_L1, MBPART_NA, 16, 16, },
{1, MBPART_BI, MBPART_NA, 16, 16, },
{2, MBPART_L0, MBPART_L0, 16, 8, },
{2, MBPART_L0, MBPART_L0, 8, 16, },
{2, MBPART_L1, MBPART_L1, 16, 8, },
{2, MBPART_L1, MBPART_L1, 8, 16, },
{2, MBPART_L0, MBPART_L1, 16, 8, },
{2, MBPART_L0, MBPART_L1, 8, 16, },
{2, MBPART_L1, MBPART_L0, 16, 8, },
{2, MBPART_L1, MBPART_L0, 8, 16, },
{2, MBPART_L0, MBPART_BI, 16, 8, },
{2, MBPART_L0, MBPART_BI, 8, 16, },
{2, MBPART_L1, MBPART_BI, 16, 8, },
{2, MBPART_L1, MBPART_BI, 8, 16, },
{2, MBPART_BI, MBPART_L0, 16, 8, },
{2, MBPART_BI, MBPART_L0, 8, 16, },
{2, MBPART_BI, MBPART_L1, 16, 8, },
{2, MBPART_BI, MBPART_L1, 8, 16, },
{2, MBPART_BI, MBPART_BI, 16, 8, },
{2, MBPART_BI, MBPART_BI, 8, 16, },
{4, MBPART_NA, MBPART_NA, 8, 8, },
};
/** Table 7-17 <20> Sub-macroblock types in P macroblocks */
submbtype_info_t gas_ih264_p_submbtype_info[] =
{
{1, MBPART_L0, 8, 8},
{2, MBPART_L0, 8, 4},
{2, MBPART_L0, 4, 8},
{4, MBPART_L0, 4, 4},
};
/** Table 7-18 <20> Sub-macroblock types in B macroblocks */
submbtype_info_t gas_ih264_b_submbtype_info[] =
{
{4, MBPART_DIRECT, 4, 4},
{1, MBPART_L0, 8, 8},
{1, MBPART_L1, 8, 8},
{1, MBPART_BI, 8, 8},
{2, MBPART_L0, 8, 4},
{2, MBPART_L0, 4, 8},
{2, MBPART_L1, 8, 4},
{2, MBPART_L1, 4, 8},
{2, MBPART_BI, 8, 4},
{2, MBPART_BI, 4, 8},
{4, MBPART_L0, 4, 4},
{4, MBPART_L1, 4, 4},
{4, MBPART_BI, 4, 4},
};
const UWORD8 gau1_ih264_inv_scan_prog4x4[] =
{
0, 1, 4, 8,
5, 2, 3, 6,
9, 12, 13, 10,
7, 11, 14, 15
};
const UWORD8 gau1_ih264_inv_scan_int4x4[] =
{
0, 4, 1, 8,
12, 5, 9, 13,
2, 6, 10, 14,
3, 7, 11, 15
};
/** Inverse scan tables for individual 4x4 blocks of 8x8 transform coeffs of CAVLC */
/* progressive */
const UWORD8 gau1_ih264_inv_scan_prog8x8_cavlc[64] =
{
0, 9, 17, 18, 12, 40, 27, 7,
35, 57, 29, 30, 58, 38, 53, 47,
1, 2, 24, 11, 19, 48, 20, 14,
42, 50, 22, 37, 59, 31, 60, 55,
8, 3, 32, 4, 26, 41, 13, 21,
49, 43, 15, 44, 52, 39, 61, 62,
16, 10, 25, 5, 33, 34, 6, 28,
56, 36, 23, 51, 45, 46, 54, 63
};
/* interlace */
const UWORD8 gau1_ih264_inv_scan_int8x8_cavlc[64] =
{
0, 9, 2, 56, 18, 26, 34, 27,
35, 28, 36, 29, 45, 7, 54, 39,
8, 24, 25, 33, 41, 11, 42, 12,
43, 13, 44, 14, 53, 15, 62, 47,
16, 32, 40, 10, 49, 4, 50, 5,
51, 6, 52, 22, 61, 38, 23, 55,
1, 17, 48, 3, 57, 19, 58, 20,
59, 21, 60, 37, 30, 46, 31, 63
};
/*Inverse scan tables for individual 8x8 blocks of 8x8 transform coeffs of CABAC */
/* progressive */
const UWORD8 gau1_ih264_inv_scan_prog8x8_cabac[64] =
{
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63
};
/* interlace */
const UWORD8 gau1_ih264_inv_scan_int8x8_cabac[64] =
{
0, 8, 16, 1, 9, 24, 32, 17,
2, 25, 40, 48, 56, 33, 10, 3,
18, 41, 49, 57, 26, 11, 4, 19,
34, 42, 50, 58, 27, 12, 5, 20,
35, 43, 51, 59, 28, 13, 6, 21,
36, 44, 52, 60, 29, 14, 22, 37,
45, 53, 61, 30, 7, 15, 38, 46,
54, 62, 23, 31, 39, 47, 55, 63
};
const UWORD8 *const gpau1_ih264_inv_scan8x8[] =
{
gau1_ih264_inv_scan_prog8x8_cavlc,
gau1_ih264_inv_scan_int8x8_cavlc,
gau1_ih264_inv_scan_prog8x8_cabac,
gau1_ih264_inv_scan_int8x8_cabac
};
const UWORD8 *const gpau1_ih264_inv_scan4x4[] =
{
gau1_ih264_inv_scan_prog4x4,
gau1_ih264_inv_scan_int4x4,
};
const UWORD8 gau1_ih264_8x8_subblk_idx[] =
{
0, 1, 4, 5,
2, 3, 6, 7,
8, 9, 12, 13,
10, 11, 14, 15
};
/* Table 8-15 Chroma QP offset table */
const UWORD8 gau1_ih264_chroma_qp[] =
{
0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 29, 30,
31, 32, 32, 33, 34, 34, 35, 35,
36, 36, 37, 37, 37, 38, 38, 38,
39, 39, 39, 39
};
/**
******************************************************************************
* @brief look up table to compute neigbour availability of 4x4 blocks
* input : subblk idx, mb neighbor availability
* output : sub blk neighbor availability
* @remarks
******************************************************************************
*/
const UWORD8 gau1_ih264_4x4_ngbr_avbl[16][16] =
{
{ 0x0, 0x1, 0xc, 0x7, 0x1, 0x1, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x1, 0x1, 0xf, 0x7, 0x1, 0x1, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x2, 0x1, 0xc, 0x7, 0x1, 0x1, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x3, 0x1, 0xf, 0x7, 0x1, 0x1, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xd, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xe, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x0, 0x1, 0xc, 0x7, 0x1, 0x9, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x1, 0x1, 0xf, 0x7, 0x1, 0x9, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x2, 0x1, 0xc, 0x7, 0x1, 0x9, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0x3, 0x1, 0xf, 0x7, 0x1, 0x9, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xc, 0xf, 0xc, 0x7, 0xf, 0xf, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xd, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xe, 0xf, 0xc, 0x7, 0xf, 0xf, 0xf, 0x7, 0xc, 0xf, 0xc, 0x7, 0xf, 0x7, 0xf, 0x7 },
{ 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0x7, 0xf, 0x7, 0xf, 0x7 },
};
/**
******************************************************************************
* @brief look up table to compute neigbour availability of 8x8 blocks
* input : subblk idx, mb neighbor availability
* output : sub blk neighbor availability
* @remarks
******************************************************************************
*/
const UWORD8 gau1_ih264_8x8_ngbr_avbl[16][4] =
{
{ 0x0, 0x1, 0xc, 0x7 },
{ 0x1, 0x1, 0xf, 0x7 },
{ 0x2, 0x1, 0xc, 0x7 },
{ 0x3, 0x1, 0xf, 0x7 },
{ 0xc, 0x7, 0xc, 0x7 },
{ 0xd, 0x7, 0xf, 0x7 },
{ 0xe, 0x7, 0xc, 0x7 },
{ 0xf, 0x7, 0xf, 0x7 },
{ 0x0, 0x9, 0xc, 0x7 },
{ 0x1, 0x9, 0xf, 0x7 },
{ 0x2, 0x9, 0xc, 0x7 },
{ 0x3, 0x9, 0xf, 0x7 },
{ 0xc, 0xf, 0xc, 0x7 },
{ 0xd, 0xf, 0xf, 0x7 },
{ 0xe, 0xf, 0xc, 0x7 },
{ 0xf, 0xf, 0xf, 0x7 },
};
/** Table 7-3 Default intra 4x4 scaling list */
const UWORD16 gau2_ih264_default_intra4x4_scaling_list[] =
{
6, 13, 13, 20,
20, 20, 28, 28,
28, 28, 32, 32,
32, 37, 37, 42
};
/** Table 7-3 Default inter 4x4 scaling list */
const UWORD16 gau2_ih264_default_inter4x4_scaling_list[] =
{
10, 14, 14, 20,
20, 20, 24, 24,
24, 24, 27, 27,
27, 30, 30, 34
};
/* Inverse scanned output of gau2_ih264_default_intra4x4_scaling_list */
const UWORD16 gau2_ih264_default_intra4x4_weight_scale[] =
{
6, 13, 20, 28,
13, 20, 28, 32,
20, 28, 32, 37,
28, 32, 37, 42
};
/* Inverse scanned output of gau2_ih264_default_inter4x4_scaling_list */
const UWORD16 gau2_ih264_default_inter4x4_weight_scale[] =
{
10, 14, 20, 24,
14, 20, 24, 27,
20, 24, 27, 30,
24, 27, 30, 34
};
/** Table 7-4 Default intra 8x8 scaling list */
const UWORD16 gau2_ih264_default_intra8x8_scaling_list[] =
{
6, 10, 10, 13, 11, 13, 16, 16,
16, 16, 18, 18, 18, 18, 18, 23,
23, 23, 23, 23, 23, 25, 25, 25,
25, 25, 25, 25, 27, 27, 27, 27,
27, 27, 27, 27, 29, 29, 29, 29,
29, 29, 29, 31, 31, 31, 31, 31,
31, 33, 33, 33, 33, 33, 36, 36,
36, 36, 38, 38, 38, 40, 40, 42
};
/** Table 7-4 Default inter 8x8 scaling list */
const UWORD16 gau2_ih264_default_inter8x8_scaling_list[] =
{
9, 13, 13, 15, 13, 15, 17, 17,
17, 17, 19, 19, 19, 19, 19, 21,
21, 21, 21, 21, 21, 22, 22, 22,
22, 22, 22, 22, 24, 24, 24, 24,
24, 24, 24, 24, 25, 25, 25, 25,
25, 25, 25, 27, 27, 27, 27, 27,
27, 28, 28, 28, 28, 28, 30, 30,
30, 30, 32, 32, 32, 33, 33, 35
};
/* Inverse scanned output of gau2_ih264_default_intra8x8_scaling_list */
const UWORD16 gau2_ih264_default_intra8x8_weight_scale[] =
{
6, 10, 13, 16, 18, 23, 25, 27,
10, 11, 16, 18, 23, 25, 27, 29,
13, 16, 18, 23, 25, 27, 29, 31,
16, 18, 23, 25, 27, 29, 31, 33,
18, 23, 25, 27, 29, 31, 33, 36,
23, 25, 27, 29, 31, 33, 36, 38,
25, 27, 29, 31, 33, 36, 38, 40,
27, 29, 31, 33, 36, 38, 40, 42
};
/* Inverse scanned output of gau2_ih264_default_inter8x8_scaling_list */
const UWORD16 gau2_ih264_default_inter8x8_weight_scale[] =
{
9, 13, 15, 17, 19, 21, 22, 24,
13, 13, 17, 19, 21, 22, 24, 25,
15, 17, 19, 21, 22, 24, 25, 27,
17, 19, 21, 22, 24, 25, 27, 28,
19, 21, 22, 24, 25, 27, 28, 30,
21, 22, 24, 25, 27, 28, 30, 32,
22, 24, 25, 27, 28, 30, 32, 33,
24, 25, 27, 28, 30, 32, 33, 35
};
/* Eq 7-8 Flat scaling matrix for 4x4 */
const UWORD16 gau2_ih264_flat_4x4_weight_scale[] =
{
16, 16, 16, 16,
16, 16, 16, 16,
16, 16, 16, 16,
16, 16, 16, 16
};
/* Eq 7-9 Flat scaling matrix for 8x8 */
const UWORD16 gau2_ih264_flat_8x8_weight_scale[] =
{
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16
};
/**
******************************************************************************
* @brief Scale Table for inverse quantizing 4x4 subblock. To inverse quantize
* a given 4x4 quantized block, the coefficient at index location (i,j) is scaled
* by one of the constants in this table and right shift the result by abs (4 -
* floor(qp/6)), here qp is the quantization parameter used to quantize the mb.
*
* input : 16 * qp%6, index location (i,j)
* output : scale constant.
*
* @remarks 16 constants for each index position of the subblock and 6 for each
* qp%6 in the range 0-5 inclusive.
******************************************************************************
*/
const UWORD16 gau2_ih264_iquant_scale_matrix_4x4[96] =
{
10, 13, 10, 13,
13, 16, 13, 16,
10, 13, 10, 13,
13, 16, 13, 16,
11, 14, 11, 14,
14, 18, 14, 18,
11, 14, 11, 14,
14, 18, 14, 18,
13, 16, 13, 16,
16, 20, 16, 20,
13, 16, 13, 16,
16, 20, 16, 20,
14, 18, 14, 18,
18, 23, 18, 23,
14, 18, 14, 18,
18, 23, 18, 23,
16, 20, 16, 20,
20, 25, 20, 25,
16, 20, 16, 20,
20, 25, 20, 25,
18, 23, 18, 23,
23, 29, 23, 29,
18, 23, 18, 23,
23, 29, 23, 29,
};
/**
******************************************************************************
* @brief Scale Table for inverse quantizing 8x8 subblock. To inverse quantize
* a given 8x8 quantized block, the coefficient at index location (i,j) is scaled
* by one of the constants in this table and right shift the result by abs (4 -
* floor(qp/6)), here qp is the quantization parameter used to quantize the mb.
*
* input : qp%6, index location (i,j)
* output : scale constant.
*
* @remarks 64 constants for each index position of the subblock and 6 for each
* qp%6 in the range 0-5 inclusive.
******************************************************************************
*/
const UWORD16 gau2_ih264_iquant_scale_matrix_8x8 [384] =
{
20, 19, 25, 19, 20, 19, 25, 19,
19, 18, 24, 18, 19, 18, 24, 18,
25, 24, 32, 24, 25, 24, 32, 24,
19, 18, 24, 18, 19, 18, 24, 18,
20, 19, 25, 19, 20, 19, 25, 19,
19, 18, 24, 18, 19, 18, 24, 18,
25, 24, 32, 24, 25, 24, 32, 24,
19, 18, 24, 18, 19, 18, 24, 18,
22, 21, 28, 21, 22, 21, 28, 21,
21, 19, 26, 19, 21, 19, 26, 19,
28, 26, 35, 26, 28, 26, 35, 26,
21, 19, 26, 19, 21, 19, 26, 19,
22, 21, 28, 21, 22, 21, 28, 21,
21, 19, 26, 19, 21, 19, 26, 19,
28, 26, 35, 26, 28, 26, 35, 26,
21, 19, 26, 19, 21, 19, 26, 19,
26, 24, 33, 24, 26, 24, 33, 24,
24, 23, 31, 23, 24, 23, 31, 23,
33, 31, 42, 31, 33, 31, 42, 31,
24, 23, 31, 23, 24, 23, 31, 23,
26, 24, 33, 24, 26, 24, 33, 24,
24, 23, 31, 23, 24, 23, 31, 23,
33, 31, 42, 31, 33, 31, 42, 31,
24, 23, 31, 23, 24, 23, 31, 23,
28, 26, 35, 26, 28, 26, 35, 26,
26, 25, 33, 25, 26, 25, 33, 25,
35, 33, 45, 33, 35, 33, 45, 33,
26, 25, 33, 25, 26, 25, 33, 25,
28, 26, 35, 26, 28, 26, 35, 26,
26, 25, 33, 25, 26, 25, 33, 25,
35, 33, 45, 33, 35, 33, 45, 33,
26, 25, 33, 25, 26, 25, 33, 25,
32, 30, 40, 30, 32, 30, 40, 30,
30, 28, 38, 28, 30, 28, 38, 28,
40, 38, 51, 38, 40, 38, 51, 38,
30, 28, 38, 28, 30, 28, 38, 28,
32, 30, 40, 30, 32, 30, 40, 30,
30, 28, 38, 28, 30, 28, 38, 28,
40, 38, 51, 38, 40, 38, 51, 38,
30, 28, 38, 28, 30, 28, 38, 28,
36, 34, 46, 34, 36, 34, 46, 34,
34, 32, 43, 32, 34, 32, 43, 32,
46, 43, 58, 43, 46, 43, 58, 43,
34, 32, 43, 32, 34, 32, 43, 32,
36, 34, 46, 34, 36, 34, 46, 34,
34, 32, 43, 32, 34, 32, 43, 32,
46, 43, 58, 43, 46, 43, 58, 43,
34, 32, 43, 32, 34, 32, 43, 32,
};
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