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

Audio Decoder which decodes AAC into a PCM stream This is basically just a wrapper using https://github.com/pschatzmann/arduino-fdk-aac which uses AudioInfo and provides the handlig of AudioInfo changes. More...

#include <CodecAACFDK.h>

Inheritance diagram for AACDecoderFDK:
AudioDecoder AudioWriter AudioInfoSource AudioInfoSupport

Public Member Functions

 AACDecoderFDK (int output_buffer_size=FDK_OUT_BUFFER_DEFAULT_SIZE)
 
 AACDecoderFDK (Print &out_stream, int output_buffer_size=2048)
 
void addNotifyAudioChange (AudioInfoSupport &bi) override
 Adds target to be notified about audio changes.
 
AudioInfo audioInfo () override
 provides the actual input AudioInfo
 
CStreamInfo audioInfoEx ()
 
virtual AudioInfo audioInfoOut ()
 provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream
 
bool begin ()
 
virtual bool begin (AudioInfo info) override
 
bool begin (TRANSPORT_TYPE transportType, UINT nrOfLayers)
 
virtual void clearNotifyAudioChange ()
 Deletes all change notify subscriptions.
 
AAC_DECODER_ERROR configure (uint8_t *conf, const uint32_t &length)
 Explicitly configure the decoder by passing a raw AudioSpecificConfig (ASC) or a StreamMuxConfig (SMC), contained in a binary buffer. This is required for MPEG-4 and Raw Packets file format bitstreams as well as for LATM bitstreams with no in-band SMC. If the transport format is LATM with or without LOAS, configuration is assumed to be an SMC, for all other file formats an ASC.
 
aac_fdk::AACDecoderFDK * driver ()
 
void end ()
 
bool isNotifyActive ()
 Checks if the automatic AudioInfo update is active.
 
virtual bool isResultPCM ()
 Returns true to indicate that the decoding result is PCM data.
 
virtual 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.
 
void setOutput (Print &out_stream)
 Defines the output stream.
 
virtual size_t write (const uint8_t *data, size_t len)
 

Static Public Member Functions

static void audioChangeCallback (CStreamInfo &info)
 

Public Attributes

int id
 custom id to be used by application
 

Protected Member Functions

void notifyAudioChange (AudioInfo info)
 
void writeBlocking (Print *out, uint8_t *data, size_t len)
 

Protected Attributes

aac_fdk::AACDecoderFDK * dec =nullptr
 
AudioInfo info
 
bool is_notify_active = true
 
Vector< AudioInfoSupport * > notify_vector
 
Printp_print = nullptr
 

Detailed Description

Audio Decoder which decodes AAC into a PCM stream This is basically just a wrapper using https://github.com/pschatzmann/arduino-fdk-aac which uses AudioInfo and provides the handlig of AudioInfo changes.

Author
Phil Schatzmann

Member Function Documentation

◆ addNotifyAudioChange()

void addNotifyAudioChange ( AudioInfoSupport bi)
inlineoverridevirtual

Adds target to be notified about audio changes.

Reimplemented from AudioInfoSource.

◆ audioInfo()

AudioInfo audioInfo ( )
inlineoverridevirtual

provides the actual input AudioInfo

Reimplemented from AudioDecoder.

◆ audioInfoOut()

virtual AudioInfo audioInfoOut ( )
inlinevirtualinherited

◆ begin() [1/2]

bool begin ( )
inlinevirtual

Implements AudioWriter.

◆ begin() [2/2]

virtual bool begin ( AudioInfo  info)
inlineoverridevirtualinherited

Reimplemented from AudioWriter.

◆ end()

void end ( )
inlinevirtual

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()

virtual 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]

void setOutput ( Print out_stream)
inlinevirtual

Defines the output stream.

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: