PTFlateEncode

@interface PTFlateEncode : PTFilter

FlateEncode filter can be used to compress any data stream using Flate (i.e. ZIP) compression method.

  • Constructor for Flate encoder.

    Declaration

    Objective-C

    - (instancetype)initWithInput_filter:(PTFilter *)input_filter
                   compression_level:(int)compression_level
                              buf_sz:(unsigned long)buf_sz;

    Swift

    init!(input_filter: PTFilter!, compression_level: Int32, buf_sz: UInt)

    Parameters

    input_filter

    the input data stream
    compression_level

    must be a number between 0 and 9: 1 gives best speed, 9 gives best compression, 0 gives no compression at all (the input data is simply copied a block at a time), -1 requests a default compromise between speed and compression (currently equivalent to level 6).
    buf_sz

    filter buffer size (in bytes).