mp4dtble.c

Linux下的基于intel的ipp库的MPEG4解码程序源码

/******************************************************************************
//               INTEL CORPORATION PROPRIETARY INFORMATION
//  This software is supplied under the terms of a license agreement or
//  nondisclosure agreement with Intel Corporation and may not be copied
//  or disclosed except in accordance with the terms of that agreement.
//        Copyright (c) 2003 Intel Corporation. All Rights Reserved.
//
//  Description:    Constant tables of MPEG-4 video decoder sample code for
//                  Intel(R) Integrated Performance Primitives.
//  Functions List:
//
******************************************************************************/

#include "sampmp4.h"

const int bits_mask_tbl[33] =
{
    0x00000000, 0x00000001, 0x00000003, 0x00000007,
    0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f,
    0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff,
    0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff,
    0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff,
    0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff,
    0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff,
    0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff,
    0xffffffff
};

unsigned char default_qmat_intra_tbl [64] = {
    8,  17, 18, 19, 21, 23, 25, 27,
    17, 18, 19, 21, 23, 25, 27, 28,
    20, 21, 22, 23, 24, 26, 28, 30,
    21, 22, 23, 24, 26, 28, 30, 32,
    22, 23, 24, 26, 28, 30, 32, 35,
    23, 24, 26, 28, 30, 32, 35, 38,
    25, 26, 28, 30, 32, 35, 38, 41,
    27, 28, 30, 32, 35, 38, 41, 45
};

unsigned char default_qmat_inter_tbl [64] = {
    16, 17, 18, 19, 20, 21, 22, 23,
    17, 18, 19, 20, 21, 22, 23, 24,
    18, 19, 20, 21, 22, 23, 24, 25,
    19, 20, 21, 22, 23, 24, 26, 27,
    20, 21, 22, 23, 25, 26, 27, 28,
    21, 22, 23, 24, 26, 27, 28, 30,
    22, 23, 24, 26, 27, 28, 30, 31,
    23, 24, 25, 27, 28, 30, 31, 33
};

const Ipp16u dc_switch_thresh_tbl[8] = {512, 13, 15, 17, 19, 21, 23, 0};

const unsigned char classic_zigzag_tbl[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
};

const Ipp8u  cbpy4_intra_tbl[13] = {16, 16, 16, 0, 12, 10,
 14, 5, 13, 3, 11, 7, 15};

const mp4_tree_node mcbpc_pvop_vlc_tbl[21] = {
    { 0, 1, 1,  0 }, { 0, 0, 2,  7  }, { 0, 0, 4,  3 }, { 1, 1, 2,  1 }, 
    { 0, 0, 8,  5 }, { 0, 1, 6,  12 }, { 1, 1, 16, 3 }, { 1, 1, 8,  4 }, 
    { 0, 0, 11, 9 }, { 0, 0, 15, 10 }, { 1, 1, 6,  5 }, { 0, 0, 12, 16},
    { 0, 0, 18, 13}, { 0, 1, 14, 14 }, { 1, 1, 17, 7 }, { 1, 1, 10, 9 }, 
    { 0, 1, 17, 15}, { 1, 1, 13, 11 }, { 0, 0, 20, 19}, { 1, 1, 19, 18}, 
    { 1, 1, -1, 48 }};

/* for intra DC only block */
const mp4_table_node dc_size_lum_tbl[8] = {
    {5,3}, {4,3}, {3,3}, {0,3}, {2,2}, {2,2}, {1,2}, {1,2}};

const mp4_table_node dc_size_chr_tbl[4] = {
    {3,2}, {2,2}, {1,2}, {0,2}};