Struct chd::header::HeaderV4

pub struct HeaderV4 {

    pub version: Version,
    pub length: u32,
    pub flags: u32,
    pub compression: u32,
    pub total_hunks: u32,
    pub logical_bytes: u64,
    pub meta_offset: u64,
    pub hunk_bytes: u32,
    pub sha1: [u8; 20],
    pub parent_sha1: [u8; 20],
    pub raw_sha1: [u8; 20],
    pub unit_bytes: u32,
    pub unit_count: u64,
}

A CHD V4 header. The major difference between a V3 header and V4 header is the absence of MD5 hash information in CHD V4.

While all members of this struct are public, prefer the Header API over the fields of this struct.

Fields

version: Version

The CHD version (4).

length: u32

The length of the header.

flags: u32

CHD file flags.

compression: u32

The compression codec used in the CHD file. See CodecType for the valid codec types supported by this library.

total_hunks: u32

The total number of hunks in the CHD file.

logical_bytes: u64

The logical size of the compressed data in bytes.

meta_offset: u64

The offset in the stream where the CHD metadata section begins.

hunk_bytes: u32

The size of each hunk in the CHD file in bytes.

sha1: [u8; 20]

The SHA1 hash of the CHD file.

parent_sha1: [u8; 20]

The SHA1 hash of the parent CHD file.

raw_sha1: [u8; 20]

The SHA1 hash of the raw, uncompressed data.

unit_bytes: u32

The size of each unit in bytes.

unit_count: u64

The number of units in each hunk.

Trait Implementations

impl Clone for HeaderV4

fn clone(&self) -> HeaderV4

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.