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# MTLIOCompressionMethod

The compression codecs that Metal supports for input/output handles.

```
enum MTLIOCompressionMethod
```

## Overview

For more information on the individual codecs, see the <doc://com.apple.documentation/documentation/Compression/Algorithm> enumeration in the <doc://com.apple.documentation/documentation/Compression> framework.

## Topics

### Compression codecs

[`MTLIOCompressionMethod.zlib`](/documentation/Metal/MTLIOCompressionMethod/zlib)

Indicates that a file uses the zlib compression algorithm codec.

[`MTLIOCompressionMethod.lzfse`](/documentation/Metal/MTLIOCompressionMethod/lzfse)

Indicates that a file uses the LZFSE compression algorithm codec.

[`MTLIOCompressionMethod.lz4`](/documentation/Metal/MTLIOCompressionMethod/lz4)

Indicates that a file uses the LZ4 compression algorithm codec.

[`MTLIOCompressionMethod.lzma`](/documentation/Metal/MTLIOCompressionMethod/lzma)

Indicates that a file uses the LZMA compression algorithm codec.

[`MTLIOCompressionMethod.lzBitmap`](/documentation/Metal/MTLIOCompressionMethod/lzBitmap)

Indicates that a file uses the LZBitmap compression algorithm codec.


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