aac_fdk::AACDecoderFDK Class Reference

Audio Decoder which decodes AAC into a PCM stream. More...

#include <AACDecoderFDK.h>

Public Member Functions
	AACDecoderFDK (int output_buffer_size=2048)
	Construct a new AACDecoderFDK object. More...
	AACDecoderFDK (AACDataCallbackFDK dataCallback, AACInfoCallbackFDK infoCallback=nullptr, int output_buffer_size=2048)
	Construct a new AACDecoderFDK object. More...
	AACDecoderFDK (Print &out_stream, int output_buffer_size=2048)
void	setOutput (Print &out_stream)
	Defines the output stream.
void	setInfoCallback (AACInfoCallbackFDK cb)
void	setDataCallback (AACDataCallbackFDK cb)
int	setRawConfig (void *cfg, UINT &len)
	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. More...
void	setDecoderFlags (int flags)
	Set the Decoder Flags object Bit field with flags for the decoder: (flags & AACDEC_CONCEAL) == 1: Do concealment. (flags & AACDEC_FLUSH) == 2: Discard input data. Flush filter banks (output delayed audio). (flags & AACDEC_INTR) == 4: Input data is discontinuous. Resynchronize any internals as necessary. (flags & AACDEC_CLRHIST) == 8: Clear all signal delay lines and history buffers. More...
void	begin (TRANSPORT_TYPE transportType=TT_MP4_ADTS, UINT nrOfLayers=1)
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.
virtual size_t	write (const void *in_ptr, size_t in_size)
CStreamInfo	audioInfo ()
void	end ()
virtual	operator boolean ()

Protected Member Functions
virtual size_t	decode (const void *in_ptr, size_t in_size)
	decodes the data
void	provideResult (INT_PCM *data, size_t len)
	return the result PWM data

Protected Attributes
bool	is_cleanup_stream = false
HANDLE_AACDECODER	aacDecoderInfo
int	output_buffer_size = 0
INT_PCM *	output_buffer = nullptr
bool	is_open = false
CStreamInfo	aacFrameInfo
AACDataCallbackFDK	pwmCallback = nullptr
AACInfoCallbackFDK	infoCallback = nullptr
int	decoder_flags = 0
Print *	out = nullptr

Detailed Description

Audio Decoder which decodes AAC into a PCM stream.

Constructor & Destructor Documentation

AACDecoderFDK() [1/2]

aac_fdk::AACDecoderFDK::AACDecoderFDK ( int  output_buffer_size = 2048 )

inline

Construct a new AACDecoderFDK object.

Parameters

output_buffer_size

AACDecoderFDK() [2/2]

aac_fdk::AACDecoderFDK::AACDecoderFDK ( AACDataCallbackFDK  dataCallback, AACInfoCallbackFDK  infoCallback = nullptr, int  output_buffer_size = 2048  )

inline

Construct a new AACDecoderFDK object.

Parameters

dataCallback
infoCallback	(default nullptr)
output_buffer_size	(default 2048)

Member Function Documentation

setDecoderFlags()

void aac_fdk::AACDecoderFDK::setDecoderFlags ( int  flags )

inline

Set the Decoder Flags object Bit field with flags for the decoder:
(flags & AACDEC_CONCEAL) == 1: Do concealment.
(flags & AACDEC_FLUSH) == 2: Discard input data. Flush filter banks (output delayed audio).
(flags & AACDEC_INTR) == 4: Input data is discontinuous. Resynchronize any internals as necessary.
(flags & AACDEC_CLRHIST) == 8: Clear all signal delay lines and history buffers.

Parameters

flags

setRawConfig()

int aac_fdk::AACDecoderFDK::setRawConfig ( void *  cfg, UINT &  len  )

inline

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.

Parameters

cfg	Pointer to an unsigned char buffer containing the binary configuration buffer (either ASC or SMC).
len	Length of the configuration buffer in bytes.

Returns

Error code.

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

• src/AACDecoderFDK.h