arduino-audio-tools
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Public Member Functions | Public Attributes | Protected Member Functions | Protected Attributes | List of all members
APTXDecoder Class Reference

Decoder for OpenAptx. Depends on https://github.com/pschatzmann/libopenaptx. More...

#include <CodecAPTX.h>

Inheritance diagram for APTXDecoder:
AudioDecoder AudioWriter AudioInfoSource AudioInfoSupport

Public Member Functions

 APTXDecoder (bool isHd=false)
 
virtual void addNotifyAudioChange (AudioInfoSupport &bi)
 Adds target to be notified about audio changes.
 
virtual AudioInfo audioInfo ()
 provides the actual input AudioInfo
 
virtual AudioInfo audioInfoOut ()
 provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream
 
bool begin () override
 
virtual bool begin (AudioInfo info) override
 
virtual void clearNotifyAudioChange ()
 Deletes all change notify subscriptions.
 
void end () override
 
bool isNotifyActive ()
 Checks if the automatic AudioInfo update is active.
 
virtual bool isResultPCM ()
 Returns true to indicate that the decoding result is PCM data.
 
 operator bool ()
 
virtual bool removeNotifyAudioChange (AudioInfoSupport &bi)
 Removes a target in order not to be notified about audio changes.
 
virtual void setAudioInfo (AudioInfo from) override
 for most decoders this is not needed
 
void setNotifyActive (bool flag)
 Deactivate/Reactivate automatic AudioInfo updates: (default is active)
 
virtual void setOutput (AudioOutput &out_stream)
 Defines where the decoded result is written to.
 
virtual void setOutput (AudioStream &out_stream)
 Defines where the decoded result is written to.
 
virtual void setOutput (Print &out_stream)
 Defines where the decoded result is written to.
 
virtual size_t write (const uint8_t *data, size_t len)
 

Public Attributes

int id
 custom id to be used by application
 

Protected Member Functions

bool checkPrefix (const void *input_buffer, size_t length)
 Checks the prefix of the received data.
 
void checkSync (bool synced, bool dropped, bool &is_ok)
 Checks the syncronization.
 
void notifyAudioChange (AudioInfo info)
 
void writeBlocking (Print *out, uint8_t *data, size_t len)
 
void writeData (size_t written, bool &is_ok)
 Converts the data to 16 bit and writes it to final output.
 

Protected Attributes

struct aptx_contextctx = nullptr
 
AudioInfo info
 
bool is_first_write = true
 
bool is_hd
 
bool is_notify_active = true
 
Vector< AudioInfoSupport * > notify_vector
 
Vector< uint8_toutput_buffer
 
Printp_print = nullptr
 
size_t processed
 
bool syncing
 
size_t written
 

Detailed Description

Decoder for OpenAptx. Depends on https://github.com/pschatzmann/libopenaptx.

Author
Phil Schatzmann

Member Function Documentation

◆ addNotifyAudioChange()

virtual void addNotifyAudioChange ( AudioInfoSupport bi)
inlinevirtualinherited

◆ audioInfo()

virtual AudioInfo audioInfo ( )
inlinevirtualinherited

◆ audioInfoOut()

virtual AudioInfo audioInfoOut ( )
inlinevirtualinherited

◆ begin() [1/2]

bool begin ( )
inlineoverridevirtual

Implements AudioWriter.

◆ begin() [2/2]

virtual bool begin ( AudioInfo  info)
inlineoverridevirtualinherited

Reimplemented from AudioWriter.

◆ end()

void end ( )
inlineoverridevirtual

Implements AudioWriter.

◆ isResultPCM()

virtual bool isResultPCM ( )
inlinevirtualinherited

Returns true to indicate that the decoding result is PCM data.

Reimplemented in CopyDecoder, and GGWaveDecoder.

◆ operator bool()

operator bool ( )
inlinevirtual

Implements AudioWriter.

◆ setAudioInfo()

virtual void setAudioInfo ( AudioInfo  from)
inlineoverridevirtualinherited

for most decoders this is not needed

Implements AudioWriter.

Reimplemented in GGWaveDecoder, DecoderL8, OpusAudioDecoder, CodecNOP, AACDecoderHelix, and G7xxDecoder.

◆ setOutput() [1/3]

virtual void setOutput ( AudioOutput out_stream)
inlinevirtualinherited

Defines where the decoded result is written to.

Reimplemented in MetaDataFilterDecoder.

◆ setOutput() [2/3]

virtual void setOutput ( AudioStream out_stream)
inlinevirtualinherited

Defines where the decoded result is written to.

Reimplemented in MetaDataFilterDecoder.

◆ setOutput() [3/3]

virtual void setOutput ( Print out_stream)
inlinevirtual

Defines where the decoded result is written to.

Reimplemented from AudioDecoder.

◆ write()

virtual size_t write ( const uint8_t data,
size_t  len 
)
inlinevirtual

Implements AudioWriter.


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