26 lines
1.0 KiB
C#
26 lines
1.0 KiB
C#
using BrotliLib.Brotli;
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using BrotliLib.Brotli.Components;
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using BrotliLib.Brotli.Encode;
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using BrotliLib.Brotli.Encode.Build;
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using BrotliLib.Brotli.Parameters;
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using BrotliLib.Brotli.Utils;
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namespace BrotliImpl.Transformers{
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public class TransformSplitInsertCopyLengths : BrotliTransformerCompressed{
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protected override (MetaBlock, BrotliGlobalState) Transform(MetaBlock.Compressed original, BrotliGlobalState state, BrotliCompressionParameters parameters){
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if (original.Data.InsertCopyCommands.Count <= 1 || original.Data.BlockSwitchCommands[Category.InsertCopy].Count > 0){
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return (original, state);
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}
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var builder = new CompressedMetaBlockBuilder(original, state);
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var icBlocks = builder.BlockTypes[Category.InsertCopy];
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var icCommands = builder.GetTotalBlockLength(Category.InsertCopy);
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icBlocks.SetInitialLength(icCommands / 2)
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.AddFinalBlock(1);
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return builder.Build(parameters);
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}
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}
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}
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