class PNGChunks::PNGChunk

• PNGChunks::PNGChunk
• Reference
• Object

Overview

PNGChunk represents a single PNG chunk, which is effectively the pair of the type (such as IHDR) and the data.

Defined in:

Constructors

• .new(type_bytes : Slice(UInt8), data : Slice(UInt8))

  Creates a new PNGChunk out of a type and data, both Bytes.

Instance Method Summary

• #crc : UInt32

  The chunk's CRC32 checksum, calculated from the chunk's type and data.

• #data : Bytes

  The chunk's data.

• #type

  The chunk's type as a string.

• #type_bytes : Bytes

  The chunk's type as Bytes.

• #valid? : Bool

  A boolean representing whether the chunk is valid.

Constructor Detail

type_bytes = "IHDR".bytes
data = make_ihdr_bytes
chunk = PNGChunks::PNGChunk(type_bytes, data)

Instance Method Detail