DecoderHelix Class Reference

MP3 and AAC Decoder using libhelix: https://github.com/pschatzmann/arduino-libhelix. We dynamically create a MP3 or AAC decoder dependent on the provided audio format. More...

#include <CodecHelix.h>

Inheritance diagram for DecoderHelix:

Public Member Functions
	DecoderHelix (Print &out_stream)
	DecoderHelix (Print &out_stream, AudioInfoSupport &bi)
AudioInfo	audioInfo ()
void	begin ()
	Starts the processing.
virtual void	begin (AudioInfo info)
void	end ()
	Releases the reserved memory.
virtual bool	isResultPCM ()
	If true, the decoding result is PCM data.
	operator bool ()
	checks if the class is active
virtual void	setAudioInfo (AudioInfo from) override
	for most decoders this is not needed
void	setNotifyAudioChange (AudioInfoSupport &bi)
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 &outStream)
	Defines the output Stream.
size_t	write (const void *data, size_t len)
	Write mp3 data to decoder.

Protected Member Functions
void	resetDecoder ()
	Deletes the decoder.
void	setupDecoder (const byte *start)
	Defines the decoder based on the audio format.
void	writeBlocking (Print *out, uint8_t *data, size_t len)

Protected Attributes
AudioInfo	info
AudioInfo	noInfo
AudioInfoSupport *	p_bi = nullptr
AudioDecoder *	p_decoder = nullptr
AudioInfoSupport *	p_notify = nullptr
Print *	p_out_stream = nullptr
Print *	p_print = nullptr

Detailed Description

MP3 and AAC Decoder using libhelix: https://github.com/pschatzmann/arduino-libhelix. We dynamically create a MP3 or AAC decoder dependent on the provided audio format.

Author

Phil Schatzmann

Copyright

GPLv3

Member Function Documentation

setNotifyAudioChange()

void setNotifyAudioChange ( AudioInfoSupport &  bi )

inlinevirtual

Defines the callback object to which the Audio information change is provided

Reimplemented from AudioDecoder.

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

• src/AudioCodecs/CodecHelix.h