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gerrit-public.fairphone.software / platform / external / libmpeg2 / 9d36b541b7bbd5ce660cbbbfff025398a7c9f93b / . / common / impeg2_globals.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
*/
#include <stdio.h>
#include "iv_datatypedef.h"
#include "iv.h"
#include "impeg2_buf_mgr.h"
#include "impeg2_disp_mgr.h"
#include "impeg2_defs.h"
#include "impeg2_platform_macros.h"
#include "impeg2_globals.h"
/* Table for converting the quantizer_scale_code to quantizer_scale */
const UWORD8 gau1_impeg2_non_linear_quant_scale[] =
{
0, 1, 2, 3, 4, 5, 6, 7,
8,10,12,14,16,18,20,22,
24,28,32,36,40,44,48,52,
56,64,72,80,88,96,104,112
};
/* Default quantizer matrix to be used for intra blocks */
const UWORD8 gau1_impeg2_intra_quant_matrix_default[] =
{
8, 16, 19, 22, 26, 27, 29, 34,
16, 16, 22, 24, 27, 29, 34, 37,
19, 22, 26, 27, 29, 34, 34, 38,
22, 22, 26, 27, 29, 34, 37, 40,
22, 26, 27, 29, 32, 35, 40, 48,
26, 27, 29, 32, 35, 40, 48, 58,
26, 27, 29, 34, 38, 46, 56, 69,
27, 29, 35, 38, 46, 56, 69, 83
};
/* Default quantizer matrix to be used for inter blocks */
const UWORD8 gau1_impeg2_inter_quant_matrix_default[] =
{
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
};
/* Table to perform inverse scan when the scan direction is zigzag */
const UWORD8 gau1_impeg2_inv_scan_zig_zag[] =
{
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
};
/* Table to perform inverse scan when the direction of scanning is vertical */
const UWORD8 gau1_impeg2_inv_scan_vertical[] =
{
0, 8, 16, 24, 1, 9, 2, 10,
17, 25, 32, 40, 48, 56, 57, 49,
41, 33, 26, 18, 3, 11, 4, 12,
19, 27, 34, 42, 50, 58, 35, 43,
51, 59, 20, 28, 5, 13, 6, 14,
21, 29, 36, 44, 52, 60, 37, 45,
53, 61, 22, 30, 7, 15, 23, 31,
38, 46, 54, 62, 39, 47, 55, 63
};
/*****************************************************************************/
/* Table that indicate which interpolation type is to used */
/*****************************************************************************/
/* Chroma when motion vector is positive */
const UWORD16 gau2_impeg2_chroma_interp_mv[][16] =
{
/* Pos X Pos Y */
{
0, 0, 1, 1,
0, 0, 1, 1,
2, 2, 3, 3,
2, 2, 3, 3
},
/* Neg X Pos Y */
{
0, 1, 1, 0,
0, 1, 1, 0,
2, 3, 3, 2,
2, 3, 3, 2
},
/* Pos X Neg Y */
{
0, 0, 1, 1,
2, 2, 3, 3,
2, 2, 3, 3,
0, 0, 1, 1
},
/* Neg X Neg Y */
{
0, 1, 1, 0,
2, 3, 3, 2,
2, 3, 3, 2,
0, 1, 1, 0
}
};
/*****************************************************************************/
/* Input #1 Offset in bytes */
/*****************************************************************************/
/* Chroma */
const UWORD16 gau2_impeg2_chroma_interp_inp1[][16] =
{
/* Pos X Pos Y */
{
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
},
/* Neg X Pos Y */
{
0, 0, 0, 4,
0, 0, 0, 4,
0, 0, 0, 4,
0, 0, 0, 4
},
/* Pos X Neg Y */
{
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
72, 72, 72, 72
},
/* Neg X Neg Y */
{
0, 0, 0, 4,
0, 0, 0, 4,
0, 0, 0, 4,
72, 72, 72, 76
}
};
/* Luma */
const UWORD16 gau2_impeg2_luma_interp_inp1[] =
{
1, 1, 3, 3,
1, 1, 3, 3,
37, 37, 39, 39,
37, 37, 39, 39
};
/*****************************************************************************/
/* Input #2 Offset from Input #1 in bytes */
/*****************************************************************************/
/*
FXFY 0,
HXFY 2,
FXHY 36,
HXHY 36
*/
const UWORD16 gau2_impeg2_luma_interp_inp2[] =
{
0, 2, 0, 2,
36, 36, 36, 36,
0, 2, 0, 2,
36, 36, 36, 36
};
const UWORD16 gau2_impeg2_chroma_interp_inp2[] =
{
/* FXFY */
0,
/* HXFY */
4,
/* FXHY */
72,
/* HXHY */
72
};
/*****************************************************************************/
/* Corresponds to Table 6-4 frame_rate_value of the standard */
/*****************************************************************************/
/*
frame_rate_code frame_rate_value
0000 Forbidden
0001 24 000 ÷ 1001
0010 24
0011 25
0100 30 000 ÷ 1001
0101 30
0110 50
0111 60 000 ÷ 1001
1000 60
1001 Reserved
....
1111 Reserved
*/
const UWORD16 gau2_impeg2_frm_rate_code[][2] =
{
{1 , 1}, /* Forbidden */
{24000, 1001},
{24000, 1000},
{25000, 1000},
{30000, 1001},
{30000, 1000},
{50000, 1000},
{60000, 1001},
{60000, 1000}
/* Rest reserved */
};
const WORD16 gai2_impeg2_idct_q15[] =
{
23170, 23170, 23170, 23170, 23170, 23170, 23170, 23170,
32138, 27246, 18205, 6393, -6393, -18205, -27246, -32138,
30274, 12540, -12540, -30274, -30274, -12540, 12540, 30274,
27246, -6393, -32138, -18205, 18205, 32138, 6393, -27246,
23170, -23170, -23170, 23170, 23170, -23170, -23170, 23170,
18205, -32138, 6393, 27246, -27246, -6393, 32138, -18205,
12540, -30274, 30274, -12540, -12540, 30274, -30274, 12540,
6393, -18205, 27246, -32138, 32138, -27246, 18205, -6393,
};
const WORD16 gai2_impeg2_idct_q11[] =
{
1448, 1448, 1448, 1448, 1448, 1448, 1448, 1448,
2009, 1703, 1138, 400, -400, -1138, -1703, -2009,
1892, 784, -784, -1892, -1892, -784, 784, 1892,
1703, -400, -2009, -1138, 1138, 2009, 400, -1703,
1448, -1448, -1448, 1448, 1448, -1448, -1448, 1448,
1138, -2009, 400, 1703, -1703, -400, 2009, -1138,
784, -1892, 1892, -784, -784, 1892, -1892, 784,
400, -1138, 1703, -2009, 2009, -1703, 1138, -400,
};
const WORD16 gai2_impeg2_idct_even_8_q15[][8] =
{
{ 23170, 23170, 23170, 23170, 23170, 23170, 23170, 23170 },
{ 12540, -30274, 12540, -30274, 12540, -30274, 12540, -30274 },
{ 30274, 12540, 30274, 12540, 30274, 12540, 30274, 12540 },
{ 23170, -23170, 23170, -23170, 23170, -23170, 23170, -23170 }
};
const WORD16 gai2_impeg2_idct_odd_8_q15[][8] =
{
{ 32138, 27246, 32138, 27246, 32138, 27246, 32138, 27246 },
{ 18205, 6393, 18205, 6393, 18205, 6393, 18205, 6393 },
{ 27246, -6393, 27246, -6393, 27246, -6393, 27246, -6393 },
{ 32138, 18205, 32138, 18205, 32138, 18205, 32138, 18205 },
{ 18205, -32138, 18205, -32138, 18205, -32138, 18205, -32138 },
{ 6393, 27246, 6393, 27246, 6393, 27246, 6393, 27246 },
{ 6393, -18205, 6393, -18205, 6393, -18205, 6393, -18205 },
{ 27246, -32138, 27246, -32138, 27246, -32138, 27246, -32138 },
};
const WORD16 gai2_impeg2_idct_even_8_q11[][8] =
{
{ 1448, 1448, 1448, 1448, 1448, 1448, 1448, 1448 },
{ 784, -1892, 784, -1892, 784, -1892, 784, -1892 },
{ 1892, 784, 1892, 784, 1892, 784, 1892, 784 },
{ 1448, -1448, 1448, -1448, 1448, -1448, 1448, -1448 }
};
const WORD16 gai2_impeg2_idct_odd_8_q11[][8] =
{
{ 2009, 1703, 2009, 1703, 2009, 1703, 2009, 1703 },
{ 1138, 400, 1138, 400, 1138, 400, 1138, 400 },
{ 1703, -400, 1703, -400, 1703, -400, 1703, -400 },
{ 2009, 1138, 2009, 1138, 2009, 1138, 2009, 1138 },
{ 1138, -2009, 1138, -2009, 1138, -2009, 1138, -2009 },
{ 400, 1703, 400, 1703, 400, 1703, 400, 1703 },
{ 400, -1138, 400, -1138, 400, -1138, 400, -1138 },
{ 1703, -2009, 1703, -2009, 1703, -2009, 1703, -2009 },
};
/*****************************************************************************/
/* Last row IDCT Coefficients in Q11 format */
/*****************************************************************************/
const WORD16 gai2_impeg2_idct_last_row_q11[] =
{
400, -1138, 1703, -2009, 2009, -1703, 1138, -400,
};
const WORD16 gai2_impeg2_idct_first_col_q15[] =
{
23170, 32138, 30274, 27246, 23170, 18205, 12540, 6393,
};
const WORD16 gai2_impeg2_idct_first_col_q11[] =
{
1448, 2009, 1892, 1703, 1448, 1138, 784, 400,
};
/*****************************************************************************/
/* Output of first stage dct (using gai2_impeg2_idct_q15 as coeffs) */
/* for a 1D data (0, 0, 0, 0, 0, 0, 0, 1) */
/*****************************************************************************/
const WORD16 gai2_impeg2_mismatch_stg1_outp[] =
{
2, -4, 7, -8, 8, -7, 4, -2
};
const WORD16 gai2_impeg2_mismatch_stg2_additive[] =
{
800, -2276, 3406, -4018, 4018, -3406, 2276, -800,
-1600, 4552, -6812, 8036, -8036, 6812, -4552, 1600,
2800, -7966, 11921, -14063, 14063, -11921, 7966, -2800,
-3200, 9104, -13624, 16072, -16072, 13624, -9104, 3200,
3200, -9104, 13624, -16072, 16072, -13624, 9104, -3200,
-2800, 7966, -11921, 14063, -14063, 11921, -7966, 2800,
1600, -4552, 6812, -8036, 8036, -6812, 4552, -1600,
-800, 2276, -3406, 4018, -4018, 3406, -2276, 800,
};
const UWORD8 gau1_impeg2_zerobuf[] =
{
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,
};
/*****************************************************************************/
/* Tables of offset needed to address block in an MB */
/*****************************************************************************/
const WORD16 gai2_impeg2_blk_y_off_fld[] = {0,0,1,1};
const WORD16 gai2_impeg2_blk_y_off_frm[] = {0,0,8,8};
const WORD16 gai2_impeg2_blk_x_off[] = {0,8,0,8};