ps_syntax.c

wince下著名的视频播放器源码

/*
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR and PS decoding
** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
**
** Any non-GPL usage of this software or parts of this software is strictly
** forbidden.
**
** Commercial non-GPL licensing of this software is possible.
** For more info contact Ahead Software through [e-mail].
**
** $Id: ps_syntax.c,v 1.6 2004/09/04 14:56:28 menno Exp $
**/

#include "common.h"

#ifdef PS_DEC

#include "bits.h"
#include "ps_dec.h"

/* type definitaions */
typedef const int8_t (*ps_huff_tab)[2];

/* static data tables */
static const uint8_t nr_iid_par_tab[] = {
    10, 20, 34, 10, 20, 34, 0, 0
};
static const uint8_t nr_ipdopd_par_tab[] = {
    5, 11, 17, 5, 11, 17, 0, 0
};
static const uint8_t nr_icc_par_tab[] = {
    10, 20, 34, 10, 20, 34, 0, 0
};
static const uint8_t num_env_tab[][4] = {
    { 0, 1, 2, 4 },
    { 1, 2, 3, 4 }
};

/* binary lookup huffman tables */
static const int8_t f_huff_iid_def[][2] = {
    { /*0*/ -31, 1 },             /* index 0: 1 bits: x */
    { 2, 3 },                     /* index 1: 2 bits: 1x */
    { /*1*/ -30, /*-1*/ -32 },    /* index 2: 3 bits: 10x */
    { 4, 5 },                     /* index 3: 3 bits: 11x */
    { /*2*/ -29, /*-2*/ -33 },    /* index 4: 4 bits: 110x */
    { 6, 7 },                     /* index 5: 4 bits: 111x */
    { /*3*/ -28, /*-3*/ -34 },    /* index 6: 5 bits: 1110x */
    { 8, 9 },                     /* index 7: 5 bits: 1111x */
    { /*-4*/ -35, /*4*/ -27 },    /* index 8: 6 bits: 11110x */
    { /*5*/ -26, 10 },            /* index 9: 6 bits: 11111x */
    { /*-5*/ -36, 11 },           /* index 10: 7 bits: 111111x */
    { /*6*/ -25, 12 },            /* index 11: 8 bits: 1111111x */
    { /*-6*/ -37, 13 },           /* index 12: 9 bits: 11111111x */
    { /*-7*/ -38, 14 },           /* index 13: 10 bits: 111111111x */
    { /*7*/ -24, 15 },            /* index 14: 11 bits: 1111111111x */
    { 16, 17 },                   /* index 15: 12 bits: 11111111111x */
    { /*8*/ -23, /*-8*/ -39 },    /* index 16: 13 bits: 111111111110x */
    { 18, 19 },                   /* index 17: 13 bits: 111111111111x */
    { /*9*/ -22, /*10*/ -21 },    /* index 18: 14 bits: 1111111111110x */
    { 20, 21 },                   /* index 19: 14 bits: 1111111111111x */
    { /*-9*/ -40, /*11*/ -20 },   /* index 20: 15 bits: 11111111111110x */
    { 22, 23 },                   /* index 21: 15 bits: 11111111111111x */
    { /*-10*/ -41, 24 },          /* index 22: 16 bits: 111111111111110x */
    { 25, 26 },                   /* index 23: 16 bits: 111111111111111x */
    { /*-11*/ -42, /*-14*/ -45 }, /* index 24: 17 bits: 1111111111111101x */
    { /*-13*/ -44, /*-12*/ -43 }, /* index 25: 17 bits: 1111111111111110x */
    { /*12*/ -19, 27 },           /* index 26: 17 bits: 1111111111111111x */
    { /*13*/ -18, /*14*/ -17 }    /* index 27: 18 bits: 11111111111111111x */
};

static const int8_t t_huff_iid_def[][2] = {
    { /*0*/ -31, 1 },             /* index 0: 1 bits: x */
    { /*-1*/ -32, 2 },            /* index 1: 2 bits: 1x */
    { /*1*/ -30, 3 },             /* index 2: 3 bits: 11x */
    { /*-2*/ -33, 4 },            /* index 3: 4 bits: 111x */
    { /*2*/ -29, 5 },             /* index 4: 5 bits: 1111x */
    { /*-3*/ -34, 6 },            /* index 5: 6 bits: 11111x */
    { /*3*/ -28, 7 },             /* index 6: 7 bits: 111111x */
    { /*-4*/ -35, 8 },            /* index 7: 8 bits: 1111111x */
    { /*4*/ -27, 9 },             /* index 8: 9 bits: 11111111x */
    { /*-5*/ -36, 10 },           /* index 9: 10 bits: 111111111x */
    { /*5*/ -26, 11 },            /* index 10: 11 bits: 1111111111x */
    { /*-6*/ -37, 12 },           /* index 11: 12 bits: 11111111111x */
    { /*6*/ -25, 13 },            /* index 12: 13 bits: 111111111111x */
    { /*7*/ -24, 14 },            /* index 13: 14 bits: 1111111111111x */
    { /*-7*/ -38, 15 },           /* index 14: 15 bits: 11111111111111x */
    { 16, 17 },                   /* index 15: 16 bits: 111111111111111x */
    { /*8*/ -23, /*-8*/ -39 },    /* index 16: 17 bits: 1111111111111110x */
    { 18, 19 },                   /* index 17: 17 bits: 1111111111111111x */
    { 20, 21 },                   /* index 18: 18 bits: 11111111111111110x */
    { 22, 23 },                   /* index 19: 18 bits: 11111111111111111x */
    { /*9*/ -22, /*-14*/ -45 },   /* index 20: 19 bits: 111111111111111100x */
    { /*-13*/ -44, /*-12*/ -43 }, /* index 21: 19 bits: 111111111111111101x */
    { 24, 25 },                   /* index 22: 19 bits: 111111111111111110x */
    { 26, 27 },                   /* index 23: 19 bits: 111111111111111111x */
    { /*-11*/ -42, /*-10*/ -41 }, /* index 24: 20 bits: 1111111111111111100x */
    { /*-9*/ -40, /*10*/ -21 },   /* index 25: 20 bits: 1111111111111111101x */
    { /*11*/ -20, /*12*/ -19 },   /* index 26: 20 bits: 1111111111111111110x */
    { /*13*/ -18, /*14*/ -17 }    /* index 27: 20 bits: 1111111111111111111x */
};

static const int8_t f_huff_iid_fine[][2] = {
    { 1, /*0*/ -31 },             /* index 0: 1 bits: x */
    { 2, 3 },                     /* index 1: 2 bits: 0x */
    { 4, /*-1*/ -32 },            /* index 2: 3 bits: 00x */
    { /*1*/ -30, 5 },             /* index 3: 3 bits: 01x */
    { /*-2*/ -33, /*2*/ -29 },    /* index 4: 4 bits: 000x */
    { 6, 7 },                     /* index 5: 4 bits: 011x */
    { /*-3*/ -34, /*3*/ -28 },    /* index 6: 5 bits: 0110x */
    { 8, 9 },                     /* index 7: 5 bits: 0111x */
    { /*-4*/ -35, /*4*/ -27 },    /* index 8: 6 bits: 01110x */
    { 10, 11 },                   /* index 9: 6 bits: 01111x */
    { /*-5*/ -36, /*5*/ -26 },    /* index 10: 7 bits: 011110x */
    { 12, 13 },                   /* index 11: 7 bits: 011111x */
    { /*-6*/ -37, /*6*/ -25 },    /* index 12: 8 bits: 0111110x */
    { 14, 15 },                   /* index 13: 8 bits: 0111111x */
    { /*7*/ -24, 16 },            /* index 14: 9 bits: 01111110x */
    { 17, 18 },                   /* index 15: 9 bits: 01111111x */
    { 19, /*-8*/ -39 },           /* index 16: 10 bits: 011111101x */
    { /*8*/ -23, 20 },            /* index 17: 10 bits: 011111110x */
    { 21, /*-7*/ -38 },           /* index 18: 10 bits: 011111111x */
    { /*10*/ -21, 22 },           /* index 19: 11 bits: 0111111010x */
    { 23, /*-9*/ -40 },           /* index 20: 11 bits: 0111111101x */
    { /*9*/ -22, 24 },            /* index 21: 11 bits: 0111111110x */
    { /*-11*/ -42, /*11*/ -20 },  /* index 22: 12 bits: 01111110101x */
    { 25, 26 },                   /* index 23: 12 bits: 01111111010x */
    { 27, /*-10*/ -41 },          /* index 24: 12 bits: 01111111101x */
    { 28, /*-12*/ -43 },          /* index 25: 13 bits: 011111110100x */
    { /*12*/ -19, 29 },           /* index 26: 13 bits: 011111110101x */
    { 30, 31 },                   /* index 27: 13 bits: 011111111010x */
    { 32, /*-14*/ -45 },          /* index 28: 14 bits: 0111111101000x */
    { /*14*/ -17, 33 },           /* index 29: 14 bits: 0111111101011x */
    { 34, /*-13*/ -44 },          /* index 30: 14 bits: 0111111110100x */
    { /*13*/ -18, 35 },           /* index 31: 14 bits: 0111111110101x */
    { 36, 37 },                   /* index 32: 15 bits: 01111111010000x */
    { 38, /*-15*/ -46 },          /* index 33: 15 bits: 01111111010111x */
    { /*15*/ -16, 39 },           /* index 34: 15 bits: 01111111101000x */
    { 40, 41 },                   /* index 35: 15 bits: 01111111101011x */
    { 42, 43 },                   /* index 36: 16 bits: 011111110100000x */
    { /*-17*/ -48, /*17*/ -14 },  /* index 37: 16 bits: 011111110100001x */
    { 44, 45 },                   /* index 38: 16 bits: 011111110101110x */
    { 46, 47 },                   /* index 39: 16 bits: 011111111010001x */
    { 48, 49 },                   /* index 40: 16 bits: 011111111010110x */
    { /*-16*/ -47, /*16*/ -15 },  /* index 41: 16 bits: 011111111010111x */
    { /*-21*/ -52, /*21*/ -10 },  /* index 42: 17 bits: 0111111101000000x */
    { /*-19*/ -50, /*19*/ -12 },  /* index 43: 17 bits: 0111111101000001x */
    { /*-18*/ -49, /*18*/ -13 },  /* index 44: 17 bits: 0111111101011100x */
    { 50, 51 },                   /* index 45: 17 bits: 0111111101011101x */
    { 52, 53 },                   /* index 46: 17 bits: 0111111110100010x */
    { 54, 55 },                   /* index 47: 17 bits: 0111111110100011x */
    { 56, 57 },                   /* index 48: 17 bits: 0111111110101100x */
    { 58, 59 },                   /* index 49: 17 bits: 0111111110101101x */
    { /*-26*/ -57, /*-25*/ -56 }, /* index 50: 18 bits: 01111111010111010x */
    { /*-28*/ -59, /*-27*/ -58 }, /* index 51: 18 bits: 01111111010111011x */
    { /*-22*/ -53, /*22*/ -9 },   /* index 52: 18 bits: 01111111101000100x */
    { /*-24*/ -55, /*-23*/ -54 }, /* index 53: 18 bits: 01111111101000101x */
    { /*25*/ -6, /*26*/ -5 },     /* index 54: 18 bits: 01111111101000110x */
    { /*23*/ -8, /*24*/ -7 },     /* index 55: 18 bits: 01111111101000111x */
    { /*29*/ -2, /*30*/ -1 },     /* index 56: 18 bits: 01111111101011000x */
    { /*27*/ -4, /*28*/ -3 },     /* index 57: 18 bits: 01111111101011001x */
    { /*-30*/ -61, /*-29*/ -60 }, /* index 58: 18 bits: 01111111101011010x */
    { /*-20*/ -51, /*20*/ -11 }   /* index 59: 18 bits: 01111111101011011x */
};

static const int8_t t_huff_iid_fine[][2] = {
    { 1, /*0*/ -31 },             /* index 0: 1 bits: x */
    { /*1*/ -30, 2 },             /* index 1: 2 bits: 0x */
    { 3, /*-1*/ -32 },            /* index 2: 3 bits: 01x */
    { 4, 5 },                     /* index 3: 4 bits: 010x */
    { 6, 7 },                     /* index 4: 5 bits: 0100x */
    { /*-2*/ -33, /*2*/ -29 },    /* index 5: 5 bits: 0101x */
    { 8, /*-3*/ -34 },            /* index 6: 6 bits: 01000x */
    { /*3*/ -28, 9 },             /* index 7: 6 bits: 01001x */
    { /*-4*/ -35, /*4*/ -27 },    /* index 8: 7 bits: 010000x */
    { 10, 11 },                   /* index 9: 7 bits: 010011x */
    { /*5*/ -26, 12 },            /* index 10: 8 bits: 0100110x */
    { 13, 14 },                   /* index 11: 8 bits: 0100111x */
    { /*-6*/ -37, /*6*/ -25 },    /* index 12: 9 bits: 01001101x */
    { 15, 16 },                   /* index 13: 9 bits: 01001110x */
    { 17, /*-5*/ -36 },           /* index 14: 9 bits: 01001111x */
    { 18, /*-7*/ -38 },           /* index 15: 10 bits: 010011100x */
    { /*7*/ -24, 19 },            /* index 16: 10 bits: 010011101x */
    { 20, 21 },                   /* index 17: 10 bits: 010011110x */
    { /*9*/ -22, 22 },            /* index 18: 11 bits: 0100111000x */
    { 23, 24 },                   /* index 19: 11 bits: 0100111011x */
    { /*-8*/ -39, /*8*/ -23 },    /* index 20: 11 bits: 0100111100x */
    { 25, 26 },                   /* index 21: 11 bits: 0100111101x */
    { /*11*/ -20, 27 },           /* index 22: 12 bits: 01001110001x */
    { 28, 29 },                   /* index 23: 12 bits: 01001110110x */
    { /*-10*/ -41, /*10*/ -21 },  /* index 24: 12 bits: 01001110111x */
    { 30, 31 },                   /* index 25: 12 bits: 01001111010x */
    { 32, /*-9*/ -40 },           /* index 26: 12 bits: 01001111011x */
    { 33, /*-13*/ -44 },          /* index 27: 13 bits: 010011100011x */
    { /*13*/ -18, 34 },           /* index 28: 13 bits: 010011101100x */
    { 35, 36 },                   /* index 29: 13 bits: 010011101101x */
    { 37, /*-12*/ -43 },          /* index 30: 13 bits: 010011110100x */
    { /*12*/ -19, 38 },           /* index 31: 13 bits: 010011110101x */
    { 39, /*-11*/ -42 },          /* index 32: 13 bits: 010011110110x */
    { 40, 41 },                   /* index 33: 14 bits: 0100111000110x */
    { 42, 43 },                   /* index 34: 14 bits: 0100111011001x */
    { 44, 45 },                   /* index 35: 14 bits: 0100111011010x */
    { 46, /*-15*/ -46 },          /* index 36: 14 bits: 0100111011011x */
    { /*15*/ -16, 47 },           /* index 37: 14 bits: 0100111101000x */
    { /*-14*/ -45, /*14*/ -17 },  /* index 38: 14 bits: 0100111101011x */
    { 48, 49 },                   /* index 39: 14 bits: 0100111101100x */
    { /*-21*/ -52, /*-20*/ -51 }, /* index 40: 15 bits: 01001110001100x */
    { /*18*/ -13, /*19*/ -12 },   /* index 41: 15 bits: 01001110001101x */
    { /*-19*/ -50, /*-18*/ -49 }, /* index 42: 15 bits: 01001110110010x */
    { 50, 51 },                   /* index 43: 15 bits: 01001110110011x */
    { 52, 53 },                   /* index 44: 15 bits: 01001110110100x */
    { 54, 55 },                   /* index 45: 15 bits: 01001110110101x */
    { 56, /*-17*/ -48 },          /* index 46: 15 bits: 01001110110110x */
    { /*17*/ -14, 57 },           /* index 47: 15 bits: 01001111010001x */
    { 58, /*-16*/ -47 },          /* index 48: 15 bits: 01001111011000x */
    { /*16*/ -15, 59 },           /* index 49: 15 bits: 01001111011001x */
    { /*-26*/ -57, /*26*/ -5 },   /* index 50: 16 bits: 010011101100110x */
    { /*-28*/ -59, /*-27*/ -58 }, /* index 51: 16 bits: 010011101100111x */
    { /*29*/ -2, /*30*/ -1 },     /* index 52: 16 bits: 010011101101000x */
    { /*27*/ -4, /*28*/ -3 },     /* index 53: 16 bits: 010011101101001x */
    { /*-30*/ -61, /*-29*/ -60 }, /* index 54: 16 bits: 010011101101010x */
    { /*-25*/ -56, /*25*/ -6 },   /* index 55: 16 bits: 010011101101011x */
    { /*-24*/ -55, /*24*/ -7 },   /* index 56: 16 bits: 010011101101100x */
    { /*-23*/ -54, /*23*/ -8 },   /* index 57: 16 bits: 010011110100011x */
    { /*-22*/ -53, /*22*/ -9 },   /* index 58: 16 bits: 010011110110000x */
    { /*20*/ -11, /*21*/ -10 }    /* index 59: 16 bits: 010011110110011x */
};

static const int8_t f_huff_icc[][2] = {
    { /*0*/ -31, 1 },            /* index 0: 1 bits: x */
    { /*1*/ -30, 2 },            /* index 1: 2 bits: 1x */
    { /*-1*/ -32, 3 },           /* index 2: 3 bits: 11x */
    { /*2*/ -29, 4 },            /* index 3: 4 bits: 111x */
    { /*-2*/ -33, 5 },           /* index 4: 5 bits: 1111x */
    { /*3*/ -28, 6 },            /* index 5: 6 bits: 11111x */
    { /*-3*/ -34, 7 },           /* index 6: 7 bits: 111111x */
    { /*4*/ -27, 8 },            /* index 7: 8 bits: 1111111x */
    { /*5*/ -26, 9 },            /* index 8: 9 bits: 11111111x */
    { /*-4*/ -35, 10 },          /* index 9: 10 bits: 111111111x */
    { /*6*/ -25, 11 },           /* index 10: 11 bits: 1111111111x */
    { /*-5*/ -36, 12 },          /* index 11: 12 bits: 11111111111x */
    { /*7*/ -24, 13 },           /* index 12: 13 bits: 111111111111x */
    { /*-6*/ -37, /*-7*/ -38 }   /* index 13: 14 bits: 1111111111111x */
};

static const int8_t t_huff_icc[][2] = {
    { /*0*/ -31, 1 },            /* index 0: 1 bits: x */
    { /*1*/ -30, 2 },            /* index 1: 2 bits: 1x */
    { /*-1*/ -32, 3 },           /* index 2: 3 bits: 11x */
    { /*2*/ -29, 4 },            /* index 3: 4 bits: 111x */
    { /*-2*/ -33, 5 },           /* index 4: 5 bits: 1111x */
    { /*3*/ -28, 6 },            /* index 5: 6 bits: 11111x */
    { /*-3*/ -34, 7 },           /* index 6: 7 bits: 111111x */
    { /*4*/ -27, 8 },            /* index 7: 8 bits: 1111111x */
    { /*-4*/ -35, 9 },           /* index 8: 9 bits: 11111111x */
    { /*5*/ -26, 10 },           /* index 9: 10 bits: 111111111x */
    { /*-5*/ -36, 11 },          /* index 10: 11 bits: 1111111111x */
    { /*6*/ -25, 12 },           /* index 11: 12 bits: 11111111111x */
    { /*-6*/ -37, 13 },          /* index 12: 13 bits: 111111111111x */
    { /*-7*/ -38, /*7*/ -24 }    /* index 13: 14 bits: 1111111111111x */