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41 lines
1.9 KiB
C#
41 lines
1.9 KiB
C#
namespace SabreTools.Models.Compression.MSZIP
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{
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/// <summary>
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/// Each MSZIP block MUST consist of a 2-byte MSZIP signature and one or more RFC 1951 blocks. The
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/// 2-byte MSZIP signature MUST consist of the bytes 0x43 and 0x4B. The MSZIP signature MUST be
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/// the first 2 bytes in the MSZIP block. The MSZIP signature is shown in the following packet diagram.
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///
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/// Each MSZIP block is the result of a single deflate compression operation, as defined in [RFC1951].
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/// The compressor that performs the compression operation MUST generate one or more RFC 1951
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/// blocks, as defined in [RFC1951]. The number, deflation mode, and type of RFC 1951 blocks in each
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/// MSZIP block is determined by the compressor, as defined in [RFC1951]. The last RFC 1951 block in
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/// each MSZIP block MUST be marked as the "end" of the stream(1), as defined by [RFC1951]
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/// section 3.2.3. Decoding trees MUST be discarded after each RFC 1951 block, but the history buffer
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/// MUST be maintained.Each MSZIP block MUST represent no more than 32 KB of uncompressed data.
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///
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/// The maximum compressed size of each MSZIP block is 32 KB + 12 bytes. This enables the MSZIP
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/// block to contain 32 KB of data split between two noncompressed RFC 1951 blocks, each of which
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/// has a value of BTYPE = 00.
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/// </summary>
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/// <see href="https://interoperability.blob.core.windows.net/files/MS-MCI/%5bMS-MCI%5d.pdf"/>
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public class Block
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{
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/// <summary>
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/// Block header
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/// </summary>
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#if NET48
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public BlockHeader BlockHeader { get; set; }
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#else
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public BlockHeader? BlockHeader { get; set; }
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#endif
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/// <summary>
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/// Compressed blocks
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/// </summary>
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#if NET48
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public DeflateBlock[] CompressedBlocks { get; set; }
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#else
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public DeflateBlock[]? CompressedBlocks { get; set; }
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#endif
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}
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} |