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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};
|
|
