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

Foxen FLAC Decoder. More...

#include <CodecFLACFoxen.h>

Inheritance diagram for FLACDecoderFoxen:
AudioDecoder AudioWriter AudioInfoSource AudioInfoSupport

Public Member Functions

 FLACDecoderFoxen (int maxBlockSize, int maxChannels, bool convertTo16Bits=true)
 Default Constructor.
 
 ~FLACDecoderFoxen ()
 Destructor - calls end();.
 
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 ()
 
virtual bool begin (AudioInfo info) override
 
virtual void clearNotifyAudioChange ()
 Deletes all change notify subscriptions.
 
void end ()
 
void flush ()
 
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 () override
 
virtual bool removeNotifyAudioChange (AudioInfoSupport &bi)
 Removes a target in order not to be notified about audio changes.
 
void set32Bit (bool flag)
 Select between 16 and 32 bit output: the default is 16 bits.
 
virtual void setAudioInfo (AudioInfo from) override
 for most decoders this is not needed
 
void setInBufferSize (int size)
 Defines the input buffer size (default is 2k)
 
void setMaxBlockSize (int size)
 Defines the maximum FLAC blocksize: drives the buffer allocation.
 
void setMaxChannels (int ch)
 Defines the maximum number of channels: drives the buffer allocation.
 
void setNotifyActive (bool flag)
 Deactivate/Reactivate automatic AudioInfo updates: (default is active)
 
void setOutBufferSize (int size)
 Defines the number of 32 bit samples for providing the result (default is 4k)
 
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) override
 Defines where the decoded result is written to.
 
size_t write (const uint8_t *data, size_t len) override
 

Public Attributes

int id
 custom id to be used by application
 

Protected Member Functions

bool decode ()
 
void notifyAudioChange (AudioInfo info)
 
void processMetadata ()
 
void write16BitData (int out_len)
 
void write32BitData (int out_len)
 
void writeBlocking (Print *out, uint8_t *data, size_t len)
 

Protected Attributes

int bits_eff = 0
 
SingleBuffer< uint8_tbuffer {0}
 
fx_flac_tflac = nullptr
 
Vector< uint8_tfoxen_data {0}
 
int in_buffer_size = 1024 * 2
 
AudioInfo info
 
bool is_active = false
 
bool is_convert_to_16 = true
 
bool is_notify_active = true
 
bool is_stop_on_error = true
 
int max_block_size = 5 * 1024
 
int max_channels = 2
 
Vector< AudioInfoSupport * > notify_vector
 
Vector< int32_tout
 
int out_buffer_size = 1024 * 4
 
Printp_print = nullptr
 

Detailed Description

Foxen FLAC Decoder.

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 ( )
inlinevirtual

Reimplemented from AudioDecoder.

◆ begin() [2/2]

virtual bool begin ( AudioInfo  info)
inlineoverridevirtualinherited

Reimplemented from AudioWriter.

◆ end()

void end ( )
inlinevirtual

Reimplemented from AudioDecoder.

◆ 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 ( )
inlineoverridevirtual

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)
inlineoverridevirtualinherited

◆ write()

size_t write ( const uint8_t data,
size_t  len 
)
inlineoverridevirtual

Implements AudioWriter.


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