sector_private.h

linux下的MPEG1

/*
    $Id: sector_private.h,v 1.2 2004/04/11 12:20:32 miguelfreitas Exp $

    Copyright (C) 2000 Herbert Valerio Riedel <[e-mail]>
              (C) 1998 Heiko Eissfeldt <[e-mail]>

    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
*/

#ifndef __VCD_CD_SECTOR_PRIVATE_H__
#define __VCD_CD_SECTOR_PRIVATE_H__

#define RS_L12_BITS 8 

#define L2_RAW (1024*2) 
#define L2_Q   (26*2*2) 
#define L2_P   (43*2*2) 

typedef enum {
  MODE_0,
  MODE_2,
  MODE_2_FORM_1,
  MODE_2_FORM_2
} sectortype_t;

#define SYNC_LEN 12
#define DATA_LEN 2336
#define HEADER_LEN 4

typedef struct {
  uint8_t sync[SYNC_LEN];
  msf_t msf;
  uint8_t mode;
  uint8_t user_data[EMPTY_ARRAY_SIZE];
} raw_cd_sector_t;

#define raw_cd_sector_t_SIZEOF (SYNC_LEN+HEADER_LEN)

typedef struct {
  uint8_t sync[SYNC_LEN];
  msf_t msf;
  uint8_t mode;
} sector_header_t;

#define sector_header_t_SIZEOF (SYNC_LEN+HEADER_LEN)

typedef struct {
  sector_header_t sector_header;
  uint8_t data[M2RAW_SECTOR_SIZE];
} mode0_sector_t;

#define mode0_sector_t_SIZEOF CDIO_CD_FRAMESIZE_RAW

typedef struct {
  sector_header_t sector_header;
  uint8_t subheader[CDIO_CD_SUBHEADER_SIZE];
  uint8_t data[CDIO_CD_FRAMESIZE];
  uint32_t edc;
  uint8_t l2_p[L2_P];
  uint8_t l2_q[L2_Q];
} mode2_form1_sector_t;

#define mode2_form1_sector_t_SIZEOF CDIO_CD_FRAMESIZE_RAW

typedef struct {
  sector_header_t sector_header;
  uint8_t subheader[CDIO_CD_SUBHEADER_SIZE];
  uint8_t data[M2F2_SECTOR_SIZE];
  uint32_t edc;
} mode2_form2_sector_t;

#define mode2_form2_sector_t_SIZEOF CDIO_CD_FRAMESIZE_RAW

/*****************************************************************/
/*                                                               */
/* CRC LOOKUP TABLE                                              */
/* ================                                              */
/* The following CRC lookup table was generated automagically    */
/* by the Rocksoft^tm Model CRC Algorithm Table Generation       */
/* Program V1.0 using the following model parameters:            */
/*                                                               */
/*    Width   : 4 bytes.                                         */
/*    Poly    : 0x8001801BL                                      */
/*    Reverse : TRUE.                                            */
/*                                                               */
/* For more information on the Rocksoft^tm Model CRC Algorithm,  */
/* see the document titled "A Painless Guide to CRC Error        */
/* Detection Algorithms" by Ross Williams                        */
/* ([e-mail].). This document is likely to be  */
/* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft".        */
/*                                                               */
/*****************************************************************/

static const uint32_t EDC_crctable[256] =
{
  0x00000000U, 0x90910101U, 0x91210201U, 0x01B00300U,
  0x92410401U, 0x02D00500U, 0x03600600U, 0x93F10701U,
  0x94810801U, 0x04100900U, 0x05A00A00U, 0x95310B01U,
  0x06C00C00U, 0x96510D01U, 0x97E10E01U, 0x07700F00U,
  0x99011001U, 0x09901100U, 0x08201200U, 0x98B11301U,
  0x0B401400U, 0x9BD11501U, 0x9A611601U, 0x0AF01700U,
  0x0D801800U, 0x9D111901U, 0x9CA11A01U, 0x0C301B00U,
  0x9FC11C01U, 0x0F501D00U, 0x0EE01E00U, 0x9E711F01U,
  0x82012001U, 0x12902100U, 0x13202200U, 0x83B12301U,
  0x10402400U, 0x80D12501U, 0x81612601U, 0x11F02700U,
  0x16802800U, 0x86112901U, 0x87A12A01U, 0x17302B00U,
  0x84C12C01U, 0x14502D00U, 0x15E02E00U, 0x85712F01U,
  0x1B003000U, 0x8B913101U, 0x8A213201U, 0x1AB03300U,
  0x89413401U, 0x19D03500U, 0x18603600U, 0x88F13701U,
  0x8F813801U, 0x1F103900U, 0x1EA03A00U, 0x8E313B01U,
  0x1DC03C00U, 0x8D513D01U, 0x8CE13E01U, 0x1C703F00U,
  0xB4014001U, 0x24904100U, 0x25204200U, 0xB5B14301U,
  0x26404400U, 0xB6D14501U, 0xB7614601U, 0x27F04700U,
  0x20804800U, 0xB0114901U, 0xB1A14A01U, 0x21304B00U,
  0xB2C14C01U, 0x22504D00U, 0x23E04E00U, 0xB3714F01U,
  0x2D005000U, 0xBD915101U, 0xBC215201U, 0x2CB05300U,
  0xBF415401U, 0x2FD05500U, 0x2E605600U, 0xBEF15701U,
  0xB9815801U, 0x29105900U, 0x28A05A00U, 0xB8315B01U,
  0x2BC05C00U, 0xBB515D01U, 0xBAE15E01U, 0x2A705F00U,
  0x36006000U, 0xA6916101U, 0xA7216201U, 0x37B06300U,
  0xA4416401U, 0x34D06500U, 0x35606600U, 0xA5F16701U,
  0xA2816801U, 0x32106900U, 0x33A06A00U, 0xA3316B01U,
  0x30C06C00U, 0xA0516D01U, 0xA1E16E01U, 0x31706F00U,
  0xAF017001U, 0x3F907100U, 0x3E207200U, 0xAEB17301U,
  0x3D407400U, 0xADD17501U, 0xAC617601U, 0x3CF07700U,
  0x3B807800U, 0xAB117901U, 0xAAA17A01U, 0x3A307B00U,
  0xA9C17C01U, 0x39507D00U, 0x38E07E00U, 0xA8717F01U,
  0xD8018001U, 0x48908100U, 0x49208200U, 0xD9B18301U,
  0x4A408400U, 0xDAD18501U, 0xDB618601U, 0x4BF08700U,
  0x4C808800U, 0xDC118901U, 0xDDA18A01U, 0x4D308B00U,
  0xDEC18C01U, 0x4E508D00U, 0x4FE08E00U, 0xDF718F01U,
  0x41009000U, 0xD1919101U, 0xD0219201U, 0x40B09300U,
  0xD3419401U, 0x43D09500U, 0x42609600U, 0xD2F19701U,
  0xD5819801U, 0x45109900U, 0x44A09A00U, 0xD4319B01U,
  0x47C09C00U, 0xD7519D01U, 0xD6E19E01U, 0x46709F00U,
  0x5A00A000U, 0xCA91A101U, 0xCB21A201U, 0x5BB0A300U,
  0xC841A401U, 0x58D0A500U, 0x5960A600U, 0xC9F1A701U,
  0xCE81A801U, 0x5E10A900U, 0x5FA0AA00U, 0xCF31AB01U,
  0x5CC0AC00U, 0xCC51AD01U, 0xCDE1AE01U, 0x5D70AF00U,
  0xC301B001U, 0x5390B100U, 0x5220B200U, 0xC2B1B301U,
  0x5140B400U, 0xC1D1B501U, 0xC061B601U, 0x50F0B700U,
  0x5780B800U, 0xC711B901U, 0xC6A1BA01U, 0x5630BB00U,
  0xC5C1BC01U, 0x5550BD00U, 0x54E0BE00U, 0xC471BF01U,
  0x6C00C000U, 0xFC91C101U, 0xFD21C201U, 0x6DB0C300U,
  0xFE41C401U, 0x6ED0C500U, 0x6F60C600U, 0xFFF1C701U,
  0xF881C801U, 0x6810C900U, 0x69A0CA00U, 0xF931CB01U,
  0x6AC0CC00U, 0xFA51CD01U, 0xFBE1CE01U, 0x6B70CF00U,
  0xF501D001U, 0x6590D100U, 0x6420D200U, 0xF4B1D301U,
  0x6740D400U, 0xF7D1D501U, 0xF661D601U, 0x66F0D700U,
  0x6180D800U, 0xF111D901U, 0xF0A1DA01U, 0x6030DB00U,
  0xF3C1DC01U, 0x6350DD00U, 0x62E0DE00U, 0xF271DF01U,
  0xEE01E001U, 0x7E90E100U, 0x7F20E200U, 0xEFB1E301U,
  0x7C40E400U, 0xECD1E501U, 0xED61E601U, 0x7DF0E700U,
  0x7A80E800U, 0xEA11E901U, 0xEBA1EA01U, 0x7B30EB00U,
  0xE8C1EC01U, 0x7850ED00U, 0x79E0EE00U, 0xE971EF01U,
  0x7700F000U, 0xE791F101U, 0xE621F201U, 0x76B0F300U,
  0xE541F401U, 0x75D0F500U, 0x7460F600U, 0xE4F1F701U,
  0xE381F801U, 0x7310F900U, 0x72A0FA00U, 0xE231FB01U,
  0x71C0FC00U, 0xE151FD01U, 0xE0E1FE01U, 0x7070FF00U,
};


static const uint16_t L2sq[43][256] = {
  {    0, 44719, 16707, 61420, 33414, 11305, 50117, 28010,  6417, 47038,
   22610, 63229, 39831, 13624, 56020, 29819, 12834, 40077, 29537, 56782,
   45220,  7691, 61927, 24392, 11059, 34204, 27248, 50399, 43445,  1818,
   59638, 18009, 25668, 51947,  9479, 35752, 59074, 18541, 42881,  2350,
   32085, 54266, 15382, 37561, 65491, 20860, 48784,  4159, 22118, 63689,
    5925, 47498, 54496, 31311, 38307, 15116, 20343, 57816,  3636, 41115,
   52721, 25438, 36018,  8733, 51336, 26151, 35275, 10084, 18958, 58529,
    2893, 42466, 53657, 32566, 37082, 15989, 21279, 64944,  4700, 48371,
   64170, 21509, 48105,  5446, 30764, 54915, 14703, 38848, 58299, 19732,
   41720,  3159, 24893, 53138,  8318, 36561, 44236,   611, 60815, 17184,
   11850, 32997, 28425, 49574, 46557,  7026, 62622, 23089, 14171, 39412,
   30232, 55479, 40686, 12353, 57261, 28930,  7272, 45767, 23851, 62340,
   34815, 10576, 50876, 26643,  1401, 43990, 17466, 60053, 36109,  9122,
   52302, 25313,  3979, 41252, 20168, 57447, 37916, 15027, 54623, 31728,
    5786, 47157, 22489, 63862, 48943,  4480, 65132, 20675, 15785, 37638,
   31978, 53829, 42558,  2193, 59261, 18898,  9400, 35351, 26107, 52052,
   59721, 18406, 43018,  1701, 27599, 50528, 10892, 33827, 61528, 24311,
   45339,  8116, 29406, 56433, 13213, 40242, 56171, 30148, 39464, 13447,
   23021, 63298,  6318, 46593, 49786, 27861, 33593, 11670, 16636, 61011,
     447, 44816, 17797, 60202,  1222, 43625, 50947, 27052, 34368, 10479,
   23700, 62011,  7639, 45944, 56850, 28861, 40785, 12798, 30631, 55560,
   14052, 38987, 62753, 23438, 46178,  6861, 28342, 49177, 12277, 33114,
   60464, 17055, 44403,   988,  8641, 36718, 24706, 52781, 41799,  3560,
   57860, 19627, 14544, 38527, 31123, 55100, 47702, 5369,  64277, 21946,
    5091, 48460, 21152, 64527, 37221, 16330, 53286, 32393,  2802, 42077,
   19377, 58654, 34932,  9947, 51511, 26520,
  },
  {    0, 55768, 44973, 30325, 17223, 39583, 60650, 13618, 34446, 24406,
   10531, 61691, 50633,  7185, 27236, 46012,  4353, 51417, 48812, 26484,