Struct BundleHeader 

pub struct BundleHeader {
    pub signature: String,
    pub version: u32,
    pub unity_version: String,
    pub unity_revision: String,
    pub size: u64,
    pub compressed_blocks_info_size: u32,
    pub uncompressed_blocks_info_size: u32,
    pub flags: u32,
    pub actual_header_size: u64,
}

AssetBundle header information

Contains metadata about the bundle including version, compression settings, and structural information needed for parsing the bundle contents.

Fields

signature: String

Bundle signature (e.g., “UnityFS”, “UnityWeb”, “UnityRaw”)

version: u32

Bundle format version

unity_version: String

Unity version that created this bundle

unity_revision: String

Unity revision

size: u64

Total bundle size

compressed_blocks_info_size: u32

Compressed blocks info size

uncompressed_blocks_info_size: u32

Uncompressed blocks info size

flags: u32

Archive flags (compression type, block info location, etc.)

actual_header_size: u64

Actual header size (recorded during parsing)

Implementations

impl BundleHeader

pub fn from_reader(reader: &mut BinaryReader<'_>) -> Result<Self>

Parse bundle header from binary data

This method reads the bundle header from a binary reader, handling different bundle formats (UnityFS, UnityWeb, etc.).

pub fn compression_type(&self) -> Result<CompressionType>

Get the compression type from flags

pub fn block_info_at_end(&self) -> bool

Check if block info is at the end of the file

pub fn is_unity_fs(&self) -> bool

Check if this is a UnityFS format bundle

pub fn is_legacy(&self) -> bool

Check if this is a legacy format bundle

pub fn data_offset(&self) -> u64

Get the expected data offset after the header

pub fn header_size(&self) -> u64

Calculate the size of the header itself

pub fn validate(&self) -> Result<()>

Validate the header for consistency

pub fn format_info(&self) -> BundleFormatInfo

Get bundle format information

Trait Implementations

impl Clone for BundleHeader

fn clone(&self) -> BundleHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BundleHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BundleHeader

fn default() -> BundleHeader

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BundleHeader

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BundleHeader

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.