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  3. LZ4_compressBound

LZ4_compressBound

LZ4_compressBound() : Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible) This function is primarily useful for memory allocation purposes (destination buffer size).

API > API/Runtime > API/Runtime/Core

Description

LZ4_compressBound() : Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible) This function is primarily useful for memory allocation purposes (destination buffer size). Macro LZ4_COMPRESSBOUND() is also provided for compilation-time evaluation (stack memory allocation for example). Note that LZ4_compress_default() compresses faster when dstCapacity is >= LZ4_compressBound(srcSize) inputSize : max supported value is LZ4_MAX_INPUT_SIZE return : maximum output size in a "worst case" scenario or 0, if input size is incorrect (too large or negative)

   
Name LZ4_compressBound
Type function
Header File /Engine/Source/Runtime/Core/Public/Compression/lz4.h
Include Path #include "Compression/lz4.h"
Source /Engine/Source/Runtime/Core/Private/Compression/lz4.cpp 
LZ4int LZ4_compressBound  
(  
    int inputSize  
)

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