Arduino PulseWire Transceiver Library
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Public Member Functions | Protected Member Functions | Protected Attributes
pulsewire::RecorderCodec Class Reference

Codec Wrapper that records all edges passed to decodeEdge() for later analysis or testing. More...

#include <RecorderCodec.h>

Inheritance diagram for pulsewire::RecorderCodec:
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Collaboration diagram for pulsewire::RecorderCodec:
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Public Member Functions

 RecorderCodec (Codec &ref)
 
void init (Preamble &detector, uint32_t shortPulseUs=600, uint32_t longPulseUs=1200, uint32_t toleranceUs=200) override
 
void setFrameSize (uint16_t size)
 
bool begin (uint32_t bitFrequencyHz)
 initialization method for codecs that require setup before use (e.g., loading PIO programs, configuring state machines).
 
CodecEnum getCodecType () const override
 
size_t getEdgeCount () const
 Get the number of protocol symbols (bits, pulses, etc.) per encoded byte.
 
int getEndOfFrameDelayUs () override
 
Vector< OutputEdge > & getRecordedEdges ()
 
void clear ()
 
size_t encode (uint8_t byte, Vector< OutputEdge > &output) override
 Fill output vector with protocol-specific OutputSpec(s) for a byte.
 
bool decodeEdge (uint32_t durationUs, bool level, uint8_t &result) override
 Edge-based decoding for protocol-agnostic RX drivers.
 
virtual void reset ()
 Reset the internal state of the codec.
 
void setPreamble (Preamble &preamble)
 Set the Preamble Detector object.
 
PreamblegetPreamble ()
 Get the preamble detector associated with this codec.
 
uint16_t getFrameSize () const
 Get the configured frame size.
 
virtual bool getIdleLevel () const
 Provides the initial ldle state (low or hith)
 
const charname () const
 Get the name of the codec type as a string (e.g., "PulseDistance", "Manchester").
 
size_t encodePreamble (Vector< OutputEdge > &output)
 
virtual size_t flushEncoder (Vector< OutputEdge > &output)
 Flush any pending encoder state at end of frame.
 

Protected Member Functions

virtual void encodeByte (uint8_t byte, std::vector< bool > &bits) const
 Encode a byte to protocol bitstream. Default implementation encodes to raw bits (MSB first), but can be overridden by protocols that require different bit formatting (e.g., Manchester). The output bits are stored in.
 

Protected Attributes

Codec_ref
 
Vector< OutputEdge_recordedEdges
 
CustomPreambleUs _defaultPreamble
 
Preamble_preamble = &_defaultPreamble
 
uint16_t _bitFrequencyHz = 0
 
uint32_t _bitPeriodUs = 0
 
Vector< OutputEdge_decodeEdgeStream
 
volatile bool _inFrame = false
 
uint16_t _frameSize = 0
 

Detailed Description

Codec Wrapper that records all edges passed to decodeEdge() for later analysis or testing.

Definition at line 11 of file RecorderCodec.h.

Constructor & Destructor Documentation

◆ RecorderCodec()

pulsewire::RecorderCodec::RecorderCodec ( Codec ref)
inline

Definition at line 13 of file RecorderCodec.h.

Member Function Documentation

◆ begin()

bool pulsewire::RecorderCodec::begin ( uint32_t  bitFrequencyHz)
inlinevirtual

initialization method for codecs that require setup before use (e.g., loading PIO programs, configuring state machines).

Reimplemented from pulsewire::Codec.

Definition at line 24 of file RecorderCodec.h.

◆ clear()

void pulsewire::RecorderCodec::clear ( )
inline

Definition at line 37 of file RecorderCodec.h.

◆ decodeEdge()

bool pulsewire::RecorderCodec::decodeEdge ( uint32_t  durationUs,
bool  level,
uint8_t result 
)
inlineoverridevirtual

Edge-based decoding for protocol-agnostic RX drivers.

Called on each signal edge (duration since last edge, new level, minUs, maxUs). The codec maintains its own state and assembles frames internally.

Parameters
durationUsTime in microseconds since last edge.
levelNew logic level after the edge (true = HIGH, false = LOW).
frameBufferOutput buffer for decoded frame (if available).
frameBufferSizeSize of frameBuffer (bytes).
frameLenSet to decoded frame length if a frame is available.
Returns
True if a complete frame is decoded and available in frameBuffer.

Implements pulsewire::Codec.

Definition at line 43 of file RecorderCodec.h.

◆ encode()

size_t pulsewire::RecorderCodec::encode ( uint8_t  byte,
Vector< OutputEdge > &  output 
)
inlineoverridevirtual

Fill output vector with protocol-specific OutputSpec(s) for a byte.

Encodes the byte to protocol bits and appends OutputSpec(s) for each bit.

Parameters
byteThe byte to encode.
outputVector to append OutputSpec(s).
Returns
Number of OutputSpec entries added.

Implements pulsewire::Codec.

Definition at line 39 of file RecorderCodec.h.

◆ encodeByte()

virtual void pulsewire::Codec::encodeByte ( uint8_t  byte,
std::vector< bool > &  bits 
) const
inlineprotectedvirtualinherited

Encode a byte to protocol bitstream. Default implementation encodes to raw bits (MSB first), but can be overridden by protocols that require different bit formatting (e.g., Manchester). The output bits are stored in.

Parameters
byteThe input byte to encode.
bitsOutput buffer for encoded bits (protocol-specific format).

Definition at line 204 of file Codec.h.

◆ encodePreamble()

size_t pulsewire::Codec::encodePreamble ( Vector< OutputEdge > &  output)
inlineinherited

Definition at line 157 of file Codec.h.

◆ flushEncoder()

virtual size_t pulsewire::Codec::flushEncoder ( Vector< OutputEdge > &  output)
inlinevirtualinherited

Flush any pending encoder state at end of frame.

Some codecs (e.g., Miller) accumulate pending duration that must be output at the end of the frame. This method outputs any remaining pending state. Default implementation does nothing.

Parameters
outputVector to append OutputSpec(s).
Returns
Number of OutputSpec entries added.

Reimplemented in pulsewire::MillerCodec.

Definition at line 185 of file Codec.h.

◆ getCodecType()

CodecEnum pulsewire::RecorderCodec::getCodecType ( ) const
inlineoverridevirtual

Get the codec type (e.g., PulseDistance, Manchester) for this Codec instance.

Implements pulsewire::Codec.

Definition at line 29 of file RecorderCodec.h.

◆ getEdgeCount()

size_t pulsewire::RecorderCodec::getEdgeCount ( ) const
inlinevirtual

Get the number of protocol symbols (bits, pulses, etc.) per encoded byte.

Returns
Number of protocol symbols per byte.

Implements pulsewire::Codec.

Definition at line 31 of file RecorderCodec.h.

◆ getEndOfFrameDelayUs()

int pulsewire::RecorderCodec::getEndOfFrameDelayUs ( )
inlineoverridevirtual

Provide the end of frame delay in microseconds for this protocol, used by RX driver to

Implements pulsewire::Codec.

Definition at line 33 of file RecorderCodec.h.

◆ getFrameSize()

uint16_t pulsewire::Codec::getFrameSize ( ) const
inlineinherited

Get the configured frame size.

Definition at line 120 of file Codec.h.

◆ getIdleLevel()

virtual bool pulsewire::Codec::getIdleLevel ( ) const
inlinevirtualinherited

Provides the initial ldle state (low or hith)

Reimplemented in pulsewire::DifferentialManchesterCodec, pulsewire::MillerCodec, pulsewire::NRZCodec, and pulsewire::RZCodec.

Definition at line 127 of file Codec.h.

◆ getPreamble()

Preamble & pulsewire::Codec::getPreamble ( )
inlineinherited

Get the preamble detector associated with this codec.

Returns
Reference to the Preamble instance used for preamble detection.

Definition at line 100 of file Codec.h.

◆ getRecordedEdges()

Vector< OutputEdge > & pulsewire::RecorderCodec::getRecordedEdges ( )
inline

Definition at line 35 of file RecorderCodec.h.

◆ init()

void pulsewire::RecorderCodec::init ( Preamble detector,
uint32_t  shortPulseUs = 600,
uint32_t  longPulseUs = 1200,
uint32_t  toleranceUs = 200 
)
inlineoverridevirtual

Used by IRTransceiver to initialize codec with protocol-specific parameters

Reimplemented from pulsewire::Codec.

Definition at line 15 of file RecorderCodec.h.

◆ name()

const char * pulsewire::Codec::name ( ) const
inlineinherited

Get the name of the codec type as a string (e.g., "PulseDistance", "Manchester").

Definition at line 135 of file Codec.h.

◆ reset()

virtual void pulsewire::Codec::reset ( )
inlinevirtualinherited

Reset the internal state of the codec.

Reimplemented in pulsewire::DifferentialManchesterCodec, pulsewire::MillerCodec, pulsewire::NRZCodec, and pulsewire::RZCodec.

Definition at line 84 of file Codec.h.

◆ setFrameSize()

void pulsewire::RecorderCodec::setFrameSize ( uint16_t  size)
inline

Definition at line 19 of file RecorderCodec.h.

◆ setPreamble()

void pulsewire::Codec::setPreamble ( Preamble preamble)
inlineinherited

Set the Preamble Detector object.

Parameters
preamble

Definition at line 94 of file Codec.h.

Field Documentation

◆ _bitFrequencyHz

uint16_t pulsewire::Codec::_bitFrequencyHz = 0
protectedinherited

Definition at line 190 of file Codec.h.

◆ _bitPeriodUs

uint32_t pulsewire::Codec::_bitPeriodUs = 0
protectedinherited

Definition at line 191 of file Codec.h.

◆ _decodeEdgeStream

Vector<OutputEdge> pulsewire::Codec::_decodeEdgeStream
protectedinherited

Definition at line 192 of file Codec.h.

◆ _defaultPreamble

CustomPreambleUs pulsewire::Codec::_defaultPreamble
protectedinherited

Definition at line 188 of file Codec.h.

◆ _frameSize

uint16_t pulsewire::Codec::_frameSize = 0
protectedinherited

Definition at line 194 of file Codec.h.

◆ _inFrame

volatile bool pulsewire::Codec::_inFrame = false
protectedinherited

Definition at line 193 of file Codec.h.

◆ _preamble

Preamble* pulsewire::Codec::_preamble = &_defaultPreamble
protectedinherited

Definition at line 189 of file Codec.h.

◆ _recordedEdges

Vector<OutputEdge> pulsewire::RecorderCodec::_recordedEdges
protected

Definition at line 50 of file RecorderCodec.h.

◆ _ref

Codec& pulsewire::RecorderCodec::_ref
protected

Definition at line 49 of file RecorderCodec.h.


The documentation for this class was generated from the following file: