weezl

Release notes for 0.1.12

• Adjusted a debug assertion that handled 1-bit code sizes incorrectly in the
  decoder (relevant for TIFF but non-standard for GIF). In that case the size
  switch semantics are a bit messy.

• Reverted changes made in 0.1.9 to the behavior of the decoder under non
  libtiff-compatibility mode. Trying to read the decoder with an empty output
  buffer will at least inspect the next symbol and either error or indicate the
  end-of-stream accordingly.

• Increased decoding throughput by 3—30% depending on CPU and data.
• Added {encode,decode}::Configuration as builder types for their respective
  module. They can be cheaply cloned.
• Added decode::Configuration::with_yield_on_full_buffer to explicitly opt-in
  to libtiff compatibility. The decoder will not read or interpret further
  symbols of the decoding stream when the output buffer is full. This enables a
  caller to stop fetching symbols and elide an end of stream marker based on
  out-of-band length information. The decoder might otherwise error, trying to
  interpret data that does not belong to the stream.

• Fixed incorrect state after Decoder::reset
• Added Debug to result types

• Implicit reset is now supported for decoding.

• Fixed an integer overflow and panic that could occur during decoding.
  Decoding performance may degrade after long sequences without a reset code.

9c97e489d8f836838d497091de568cf16b117486d529ec5579233521065bd5e4 target/package/weezl-0.1.6.crate

• Added IntoVec adapters that simplify in-memory de- and encoding. A further
  'one-shot' interface is exposed in the Decoder and Encoder themselves
  which makes the process a one liner in the simplest cases. Contrary to
  IntoStream, these are available in all cases and do not require std.

sha256sum:
d8b77fdfd5a253be4ab714e4ffa3c49caf146b4de743e97510c0656cf90f1e8e target/package/weezl-0.1.5.crate

• Added IntoAsync adapters for asynchronous de- and encoding. The interface is implemented only in terms of futures = 0.3 traits at the moment.
• Code sizes smaller than 2 are now allowed for decoding. Since they do not roundtrip it is still an error to use them in the decoder but this avoids accidental panicking, i.e. denial of service, in parsers.

• Fixes an issue in compression that caused some data to be lost around clear codes. This could corrupt the data stream.

• Fixes incorrect compression after Encoder::reset.

• The IntoStream types now reuse their internal buffers.
• Added the methods set_buffer, set_buffer_size to IntoStream for both the encoder and decoder, used to control the automatic allocation.
• Deprecated IntoStream in configurations without the std feature where the type can't even be constructed.

• Initial major release
• Support gif and tiff code size changes
• Rough performance numbers: On i5-4690, 8GiB DIMM DDR3 Synchronous 1600 MHz (0,6 ns) ~70MB/s encode, ~230MB/s decode