here - OSTA - Optical Storage Technology Association

More documents

Recommendations

Info

length of the field. The characters shall be recorded starting with the first byte of the field, and any remaining byte positions after the characters up until byte n-2 inclusive shall be set to #00. If the number of d-characters to be encoded is zero, the length of the dstring shall be zero. NOTE: The length of a dstring includes the compression code byte (2.1.12.1.1) except for the case of a zero length string. A zero length string shall be recorded by setting the entire dstring field to all zeros. 2.1.4 Timestamp struct timestamp { /* ECMA 167 1/7.3 */ Uint16 TypeAndTimezone; Uint16Int16 Year; Uint8 Month; Uint8 Day; Uint8 Hour; Uint8 Minute; Uint8 Second; Uint8 Centiseconds; Uint8 HundredsofMicroseconds; Uint8 Microseconds; } 2.1.4.1 Uint16 TypeAndTimezone; For the following descriptions Type refers to the most significant 4 bits of this field, and TimeZone refers to the least significant 12 bits of this field, which is interpreted as a signed 12-bit number in two’s complement form. The time within the structure shall be interpreted as Local Time since Type shall be equal to ONE for <strong>OSTA</strong> UDF compliant media. Type shall be set to ONE to indicate Local Time. TimeZone shall be interpreted as specifying the time zone for the location when this field was last modified. If this field contains -2047 then the time zone has not been specified. For operating systems that support the concept of a time zone, the offset of the time zone (in 1 minute increments), from Coordinated Universal Time, shall be inserted in the TimeZone field. Otherwise the TimeZone shall be set to –2047. UDF 2.01 13 March50 April
Note: NOTE: Time zones West of Coordinated Universal Time have negative offsets. For example, Eastern Standard Time is -300 minutes; Eastern Daylight Time is -240 minutes. NoteNOTE: Implementations on systems that support time zones should interpret unspecified time zones as Coordinated Universal Time. Although not a requirement, this interpretation has the advantage that files generated on systems that do not support time zones will always appear to have the same time stamps on systems that do support time zones, irrespective of the interpreting system's local time zone. 2.1.5 Entity Identifier struct EntityID { /* ECMA 167 1/7.4 */ Uint8 Flags; char Identifier[23]; char IdentifierSuffix[8]; } NOTE: UDF uses EntityID for the structure that is called regid in ECMA-167. UDF classifies Entity Identifiers into 4 separate types as follows. Each type has its own Suffix Type for the IdentifierSuffix field. The 4 types are: • Domain Entity Identifiers with a Domain Identifier Suffix • UDF Entity Identifiers with a UDF Identifier Suffix • Implementation Entity Identifiers with an Implementation Identifier Suffix • Application Entity Identifiers with an Application Identifier Suffix The following sections describe the format and use of Entity Identifiers based upon the different types mentioned above. For all UDF descriptor fields containing an EntityID structure, the value of the Identifier field and the Suffix Type for the IdentifierSuffix field are defined in the Entity Identifiers table of 2.1.5.2. The interpretation of the IdentifierSuffix field for each Suffix Type is defined in 2.1.5.3. 2.1.5.1 Uint8 Flags Self-explanatory. Shall be set to ZERO. UDF 2.01 14 March50 April
Page 1 and 2: Universal Disk Format ® Specificat
Page 3 and 4: REVISION HISTORY 1.00 October 24, 1
Page 6 and 7: CONTENTS 1. INTRODUCTION ..........
Page 8 and 9: 6.4 OSTA Compressed Unicode Algorit
Page 10 and 11: 1. Introduction The OSTA Universal
Page 12 and 13: 1.2 Compliance This document requir
Page 14 and 15: Media Block Address NOTE 1: This is
Page 16 and 17: 1.3.3 Terms May Optional Shall Shou
Page 18 and 19: non-overlapping Partitions with 2 p
Page 20 and 21: 2.1 Part 1 - General 2.1.1 Characte
Page 24 and 25: 2.1.5.2 char Identifier[23] Unless
Page 26 and 27: The Suffix Type column in the above
Page 28 and 29: For an Application Entity Identifie
Page 30 and 31: 2.2 Part 3 - Volume Structure 2.2.1
Page 32 and 33: NOTE: This field is used to determi
Page 34 and 35: 2.2.4 Logical Volume Descriptor str
Page 36 and 37: 2.2.5 Unallocated Space Descriptor
Page 38 and 39: EntityID. The scope of this EntityI
Page 40 and 41: 2.2.7.2.2 dstring LogicalVolumeIden
Page 42 and 43: Layout of Type 2 partition map for
Page 44 and 45: • Bits 1-7: Reserved. Shall be se
Page 46 and 47: Virtual Allocation Table structure
Page 48 and 49: the offset and length of a partitio
Page 50 and 51: The Metadata Partition Map (see2.2.
Page 52 and 53: 2.2.13.1 Metadata File (and Metadat
Page 54 and 55: 2.2.13.4 Procedure for de-allocatin
Page 56 and 57: } struct EntityID byte byte Impleme
Page 58 and 59: 2.3.2 File Set Descriptor struct Fi
Page 60 and 61: 2.3.2.7 struct EntityID DomainIdent
Page 62 and 63: In order to assist a UDF implementa
Page 64 and 65: 2.3.5.1 Uint16 StrategyType The co
Page 66 and 67: 2.3.6 File Entry struct FileEntry {
Page 68 and 69: 2.3.6.8 FileLinkCount Hard links to
Page 70 and 71: Descriptors should be used. For exa
Page 72 and 73:
2.3.11.2 Uint32 PreviousAllocationE
Page 74 and 75:
3.2 Part 3 - Volume Structure 3.2.1
Page 76 and 77:
3.3 Part 4 - File System 3.3.1 File
Page 78 and 79:
3.3.2.1.2 Macintosh Bits 6 & 7 (Set
Page 80 and 81:
3.3.3 File Entry struct FileEntry {
Page 82 and 83:
would be considered writable if the
Page 84 and 85:
3.3.3.5 byte Extended Attributes Se
Page 86 and 87:
ignored and the file creation time
Page 88 and 89:
3.3.4.5.1.1 FreeEASpace This extend
Page 90 and 91:
MacVolumeInfo format RBP Length Nam
Page 92 and 93:
UDFFXInfo format (Volume IV, page 1
Page 94 and 95:
The ApplicationUse area for this ex
Page 96 and 97:
stream directory. If present, there
Page 98 and 99:
Since the streams listed above have
Page 100 and 101:
Object Logical Block Number is the
Page 102 and 103:
mechanism for the host software to
Page 104 and 105:
Vendor ID - The Vendor ID reported
Page 106 and 107:
The OS2EA Stream contains a table o
Page 108 and 109:
4.2.2 File Identifier Descriptor st
Page 110 and 111:
Definitions: A FileIdentifier shall
Page 112 and 113:
3. Invalid Characters: A FileIdenti
Page 114 and 115:
4. Trailing Periods and Spaces: All
Page 116 and 117:
If there is a file extension then t
Page 118 and 119:
defined as space that is not direct
Page 120 and 121:
UDF 2.01 111 March50 April
Page 122 and 123:
6.2 UDF Entity Identifier Values En
Page 124 and 125:
8 0 BeOS - generic 9 0 Windows CE -
Page 126 and 127:
} } returnValue = unicodeIndex; } r
Page 128 and 129:
} return crc; #ifdef MAIN unsigned
Page 130 and 131:
6.6 Algorithm for Strategy Type 409
Page 132 and 133:
nameLen = udfNameLen; } else { /* A
Page 134 and 135:
} needsCRC = TRUE; /* Append the CR
Page 136 and 137:
if (index < udfLabelLen || index ==
Page 138 and 139:
UDF 2.01 129 March50 April
Page 140 and 141:
unicode_t *udfName, /* (Input) Name
Page 142 and 143:
} #ifdef (OS2 | WIN_95 | WIN_NT) /*
Page 144 and 145:
6.8 Extended Attribute Checksum Alg
Page 146 and 147:
• The data of each file shall be
Page 148 and 149:
Read the File Identifier Descriptor
Page 150 and 151:
• An intermediate state is allowe
Page 152 and 153:
• The host shall perform read/mod
Page 154 and 155:
6.10.2.6.3 Level 3 No restrictions
Page 156 and 157:
ISO 9660 converted to UDF 1 st sess
Page 158 and 159:
For File Structure: 5. Unallocated
Page 160 and 161:
6.13 Recommendations for DVD+R and
Page 162 and 163:
6.13.1.4.2 Anchor Volume Descriptor
Page 164 and 165:
6.13.2.1 Requirements • The packe
Page 166 and 167:
6.126.15 UDF Media Format Revision
Page 168 and 169:
Description DCN Updated in UDF Revi
Page 170 and 171:
Registration Form Disk Format Speci
Page 172 and 173:
L Logical Block Size, 8, 9, 2425 Lo
show all

here - OSTA - Optical Storage Technology Association

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?