Enum `CompressionMethod`

#[non_exhaustive]
pub enum CompressionMethod

Identifies the storage format used to compress a file within a ZIP archive.

Each file's compression method is stored alongside it, allowing the contents to be read without context.

When creating ZIP files, you may choose the method to use with crate::write::FileOptions::compression_method

Variants

Stored

Store the file as is

Deflated

Compress the file using Deflate

Deflate64

Compress the file using Deflate64. Decoding deflate64 is supported but encoding deflate64 is not supported.

Bzip2

Compress the file using BZIP2

Aes

Encrypted using AES.

The actual compression method has to be taken from the AES extra data field or from ZipFileData.

Zstd

Compress the file using ZStandard

Lzma

Compress the file using LZMA

Xz

Compress the file using XZ

Ppmd

Compress the file using PPMd

Unsupported(u16)

Unsupported compression method

const fn name_from_u16(val: u16) -> &'static str: Convert the compression method (as u16) to a name
const fn from_u16(val: u16) -> CompressionMethod: Converts a u16 to its corresponding CompressionMethod
const fn to_u16(self) -> u16: Converts a CompressionMethod to a u16

const STORE: Self = CompressionMethod::Stored;
const SHRINK: Self = _;: Legacy compression method (enable feature legacy-zip to get support)
const REDUCE_1: Self = _;: Legacy compression method (enable feature legacy-zip to get support)
const REDUCE_2: Self = _;: Legacy compression method (enable feature legacy-zip to get support)
const REDUCE_3: Self = _;: Legacy compression method (enable feature legacy-zip to get support)
const REDUCE_4: Self = _;: Legacy compression method (enable feature legacy-zip to get support)
const IMPLODE: Self = _;: Legacy compression method (enable feature legacy-zip to get support)
const DEFLATE: Self = CompressionMethod::Deflated;
const DEFLATE64: Self = CompressionMethod::Deflate64;
const PKWARE_IMPLODE: Self = _;
const BZIP2: Self = CompressionMethod::Bzip2;
const LZMA: Self = CompressionMethod::Lzma;
const IBM_ZOS_CMPSC: Self = _;
const IBM_TERSE: Self = _;
const ZSTD_DEPRECATED: Self = _;
const ZSTD: Self = CompressionMethod::Zstd;
const MP3: Self = _;
const XZ: Self = CompressionMethod::Xz;
const JPEG: Self = _;
const WAVPACK: Self = _;
const PPMD: Self = CompressionMethod::Ppmd;
const AES: Self = CompressionMethod::Aes;
const DEFAULT: Self = CompressionMethod::Deflated;