Linux Standard Base Desktop Specification 4.1 | ||
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This interface shall set the PNG compression algorithm to use.
The parameter png_ptr shall specify the PNG file to compress.
The parameter method corresponds directly to the
method parameter of the
libz deflateInit2_() interface.
An LSB-conforming implementation
shall support the Z_DEFLATED
method,
and may support other implementation defined methods.
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png_set_compression_mem_level | Up | png_set_compression_strategy |