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

AAC Decoder using libhelix: https://github.com/pschatzmann/arduino-libhelix This is basically just a simple wrapper to provide AudioInfo and AudioInfoSupport. More...

#include <CodecAACHelix.h>

Inheritance diagram for AACDecoderHelix:
AudioDecoder AudioWriter AudioInfoSource

Public Member Functions

 AACDecoderHelix (bool raw=false)
 
 AACDecoderHelix (Print &out_stream)
 Construct a new AACDecoderMini object. More...
 
 AACDecoderHelix (Print &out_stream, AudioInfoSupport &bi)
 Construct a new AACDecoderMini object. The decoded output will go to the print object. More...
 
 ~AACDecoderHelix ()
 Destroy the AACDecoderMini object.
 
virtual AudioInfo audioInfo () override
 
virtual _AACFrameInfo audioInfoEx ()
 
void begin () override
 Starts the processing.
 
virtual void begin (AudioInfo info)
 
virtual void end () override
 Releases the reserved memory.
 
void flush ()
 
virtual bool isResultPCM ()
 If true, the decoding result is PCM data.
 
size_t maxFrameSize ()
 Provides the maximum frame size - this is allocated on the heap and you can reduce the heap size my minimizing this value.
 
size_t maxPCMSize ()
 Provides the maximum pwm buffer size - this is allocated on the heap and you can reduce the heap size my minimizing this value.
 
virtual operator bool () override
 checks if the class is active
 
void setAudioInfo (AudioInfo info) override
 for most decoders this is not needed
 
void setAudioInfoNotifications (bool active)
 
void setMaxFrameSize (size_t len)
 Define your optimized maximum frame size.
 
void setMaxPCMSize (size_t len)
 Define your optimized maximum pwm buffer size.
 
void setNotifyAudioChange (AudioInfoSupport &notify) override
 Registers an object that is notified if the audio format is changing.
 
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 the output Stream.
 
void setRaw (bool flag)
 
size_t write (const void *aac_data, size_t len) override
 Write AAC data to decoder.
 

Static Public Member Functions

static void infoCallback (_AACFrameInfo &i, void *ref)
 notifies the subscriber about a change
 

Protected Member Functions

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

Protected Attributes

libhelix::AACDecoderHelix * aac =nullptr
 
AudioInfo info
 
bool info_notifications_active = true
 
AudioInfoSupportp_notify = nullptr
 
Printp_print = nullptr
 

Detailed Description

AAC Decoder using libhelix: https://github.com/pschatzmann/arduino-libhelix This is basically just a simple wrapper to provide AudioInfo and AudioInfoSupport.

Author
Phil Schatzmann

Constructor & Destructor Documentation

◆ AACDecoderHelix() [1/2]

AACDecoderHelix ( Print out_stream)
inline

Construct a new AACDecoderMini object.

Parameters
out_stream

◆ AACDecoderHelix() [2/2]

AACDecoderHelix ( Print out_stream,
AudioInfoSupport bi 
)
inline

Construct a new AACDecoderMini object. The decoded output will go to the print object.

Parameters
out_stream
bi

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