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ChangeLog.md

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  • (Prototype) v0.0.12 - 04/07/2016

    • Rename wbfm_rtlsdr demo to rtlsdr_wbfm_mono.
    • Rename rds_rtlsdr demo to rtlsdr_rds.
    • Improve plotting, variable names, and performance of rtlsdr_wbfm_mono and rtlsdr_rds demos.
    • Add new protocol blocks:
      • AX25FrameBlock
      • POCSAGFrameBlock
      • POCSAGDecodeBlock
    • Refactor RDSFrameBlock and RDSDecodeBlock.
    • Add new demos:
      • rtlsdr_wbfm_stereo
      • rtlsdr_nbfm
      • rtlsdr_am_envelope
      • rtlsdr_am_synchronous
      • rtlsdr_ssb
      • wavfile_ssb_modulator
      • rtlsdr_ax25
      • rtlsdr_pocsag
    • Add new composite blocks:
      • NBFMDemodulator
      • AMEnvelopeDemodulator
      • AMSynchronousDemodulator
      • SSBDemodulator
      • SSBModulator
      • WBFMMonoDemodulator
      • WBFMStereoDemodulator
      • RDSReceiver
      • AX25Receiver
      • POCSAGReceiver
    • Use composite blocks in rds-timeync and fmradio embed demos.
    • Improve unit tests.

  • (Prototype) v0.0.11 - 04/01/2016

    • Fix execution of composite blocks with intermediate sinks.
    • Add support for aliasing a composite block input to multiple block inputs.
    • Add vector_from_array() vector constructor to ObjectType.
    • Move bits_to_number() helper function to BitType.tonumber() static method.
    • Simplify DecimatorBlock, InterpolatorBlock, RationalResamplerBlock constructors.
    • Fix scaling in InterpolatorBlock and RationalResamplerBlock.
    • Fix low pass filter cutoff in TunerBlock.
    • Fix output data type in FloatToComplexBlock type signature.
    • Fix output data type in RawFileSource type signature.
    • Fix size type bug in RawFileSource.
    • Fix file repeat in WAVFileSource.
    • Add RF gain and frequency correction options to RtlSdrSource.
    • Add magnitude reference level option to GnuplotSpectrumSink.
    • Add min/max magnitude options to GnuplotWaterfallSink.
    • Disable file stream buffering in RawFileSink, JSONSink, and PrintSink.
    • Add filename and file descriptor support to PrintSink.
    • Add invert option to DifferentialDecoderBlock.
    • Normalize passband gain to 1.0 in FIR window design functions.
    • Add support for specifying a normalized nyquist frequency to filter blocks.
    • Add support for complex taps to FIRFilterBlock.
    • Add complex bandpass and bandstop FIR window design functions.
    • Add new signal blocks:
      • ComplexBandpassFilterBlock
      • ComplexBandstopFilterBlock
      • ComplexConjugateBlock
      • ZeroCrossingClockRecoveryBlock
    • Add new sink blocks:
      • PortAudioSink
    • Improve unit tests.
    • Add composite block unit tests.
    • Improve namespacing with package inits for blocks and composites.
    • Simplify block imports in composite blocks.

  • (Prototype) v0.0.10 - 03/10/2016

    • Add abs_squared() method to ComplexFloat32Type.
    • Add cosine, sine, square, triangle, sawtooth, and constant real signals to SignalSource.
    • Add file repeat option to IQFileSource, RealFileSource, WAVFileSource, RawFileSource.
    • Add support for multiple channels to PulseAudioSink.
    • Add support for other data types to NullSource and RandomSource.
    • Add support for generating periodic windows to window utilities.
    • Add FFTW3 library and feature flag to platform module.
    • Add DFT and PSD spectrum utilities with Lua, VOLK, and FFTW3 implementations.
    • Add new signal blocks:
      • SubtractBlock
      • ComplexToImagBlock
      • ComplexToFloatBlock
      • FloatToComplexBlock
      • ComplexMagnitudeBlock
      • ComplexPhaseBlock
      • AbsoluteValueBlock
      • MultiplyConstantBlock
      • UpsamplerBlock
      • ThrottleBlock
    • Add new composite blocks:
      • InterpolatorBlock
      • RationalResamplerBlock
    • Add gnuplot-based plotting sinks:
      • GnuplotPlotSink
      • GnuplotXYPlotSink
      • GnuplotSpectrumSink
      • GnuplotWaterfallSink
    • Fix numerical stability problem in FrequencyTranslatorBlock and SignalSource.
    • Improve unit tests.
    • Add plots to RDS and WBFM demos.

  • (Prototype) v0.0.9 - 03/02/2016

    • Simplify type imports in blocks.
    • Fix single process execution to call block cleanup() after finish.
    • Fix block initialization order.
    • Extend file source and sink blocks to:
      • IQFileSource / IQFileSink
      • RealFileSource / RealFileSink
      • RawFileSource / RawFileSink
      • WAVFileSource / WAVFileSink
    • Improve unit tests.
    • Reorganize package init for readability.

  • (Prototype) v0.0.8 - 02/28/2016

    • Add libluaradio library with a C API to the LuaRadio runtime.
    • Add fmradio and rds-timesync demos for libluaradio.
    • Add standalone luaradio interpreter.

  • (Prototype) v0.0.7 - 02/26/2016

    • Add platform module with platform-specific constants and allocator.
    • Handle missing library gracefully in RtlSdrSource and PulseAudioSink.
    • Add portable implementation of Pipe for non-Linux platforms.
    • Add portable Lua implementations of signal processing blocks for Volk-less platforms.
    • Fix other minor portability issues.
    • This release adds support for FreeBSD and Mac OS X platforms.

  • (Prototype) v0.0.6 - 02/25/2016

    • Rename some blocks for consistency.
    • Return nil on EOF from source blocks instead of exiting.
    • Add File[IQ]DescriptorSource blocks and derive File[IQ]Source blocks from them.
    • Fix s32 format in File[IQ]DescriptorSource.
    • Fix bnot() operator in BitType.
    • Fix overflow/underflow handling in Integer32Type.
    • Use POSIX pipes in single process execution.
    • Add more argument and behavior assertions to Block and CompositeBlock.
    • Add unit tests.

  • (Prototype) v0.0.5 - 02/12/2016

    • Change CompositeBlock run() to use multiprocesses by default.
    • Use CStructType factory to build all basic types.
    • Add tostring() support to Block.
    • Handle pipe EOF in Block run() to stop processing and clean up.
    • Update benchmarks.
    • Rename SourceBlock to Source and SinkBlock to Sink.

  • (Prototype) v0.0.4 - 02/12/2016

    • Add support for functions as candidate input types in block type signatures.
    • Add support for variable length type serialization with ProcessPipe.
    • Add ObjectType factory custom Lua object types (serialized with MessagePack).
    • Add JsonSinkBlock and update the RDS demo to use it.

  • (Prototype) v0.0.3 - 02/11/2016

    • Add CStructType factory for custom cstruct types.
    • Add Vector class and resize(), append() methods.
    • Add necessary blocks to implement RDS demodulator / decoder demo.
    • Add TunerBlock and DecimatorBlock composite blocks.
    • Update demos to use composite blocks.

  • (Prototype) v0.0.2 - 02/08/2016

    • Add hierarchical block support to CompositeBlock.
    • Add start(), stop(), wait(), run() controls to CompositeBlock.
    • Add support for linear chain shortcut to CompositeBlock connect() (e.g. connect(b1, b2, b3, ...)).

  • (Prototype) v0.0.1 - 02/06/2016

    • Initial prototype with wbfm demo.