G711Encoder Class Reference

64 kbit/s g711 ULOW Encoder based on https://github.com/pschatzmann/arduino-libg7xx Supported encoder parameters: linear2alaw2, linear2ulaw More...

#include <CodecG7xx.h>

Inheritance diagram for G711Encoder:

Public Member Functions
	G711Encoder (uint8_t(*enc)(int))
AudioInfo	audioInfo () override
	provides the actual input AudioInfo
virtual AudioInfo	audioInfoOut ()
bool	begin () override
virtual bool	begin (AudioInfo info)
void	end () override
virtual uint32_t	frameDurationUs ()
	Optioinal rtsp function: provide the frame duration in microseconds.
const char *	mime () override
	Provides the mime type of the encoded result.
	operator bool ()
virtual uint16_t	samplesPerFrame ()
	Optioinal rtsp function: provide samples per the frame.
virtual void	setAudioInfo (AudioInfo info)
	Defines the sample rate, number of channels and bits per sample.
void	setOutput (Print &out_stream) override
	Default output assignment (encoders may override to store Print reference)
size_t	write (const uint8_t *data, size_t len) override

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

Protected Attributes
unsigned char	code
uint8_t(*	enc )(int) =nullptr
int	enc_bits
int(*	enc_routine )(int sample, int in_coding, struct g72x_state *state_ptr)
AudioInfo	info
bool	is_active = false
int	out_bits = 0
unsigned int	out_buffer = 0
const char *	p_mime = nullptr
Print *	p_print = nullptr
int	resid
unsigned char	sample_char
int16_t	sample_int16
struct g72x_state	state

Detailed Description

64 kbit/s g711 ULOW Encoder based on https://github.com/pschatzmann/arduino-libg7xx Supported encoder parameters: linear2alaw2, linear2ulaw

Author

Phil Schatzmann

Copyright

GPLv3

Member Function Documentation

audioInfo()

AudioInfo audioInfo ( )

inlineoverridevirtualinherited

provides the actual input AudioInfo

Implements AudioInfoSupport.

Reimplemented in CodecNOP, BinaryContainerEncoder, and MP3ParserEncoder.

audioInfoOut()

virtual AudioInfo audioInfoOut ( )

inlinevirtualinherited

provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream

Reimplemented in PureDataStream, PWMAudioOutput, ChannelFormatConverterStreamT< T >, ChannelFormatConverterStream, NumberFormatConverterStreamT< TFrom, TTo >, NumberFormatConverterStream, FormatConverterStream, Pipeline, ResampleStream, and ResampleStreamT< TInterpolator >.

begin() [1/2]

bool begin ( )

inlineoverridevirtualinherited

Implements AudioWriter.

begin() [2/2]

virtual bool begin ( AudioInfo  info )

inlinevirtualinherited

Reimplemented in AACEncoderFDK.

end()

void end ( )

inlineoverridevirtualinherited

Implements AudioWriter.

frameDurationUs()

virtual uint32_t frameDurationUs ( )

inlinevirtualinherited

Optioinal rtsp function: provide the frame duration in microseconds.

Reimplemented in ADPCMEncoder, OpusOggEncoder, MP3ParserEncoder, and MetaDataFilterEncoder.

mime()

const char * mime ( )

inlineoverridevirtualinherited

Provides the mime type of the encoded result.

Implements AudioEncoder.

operator bool()

operator bool ( )

inlinevirtualinherited

Implements AudioWriter.

samplesPerFrame()

virtual uint16_t samplesPerFrame ( )

inlinevirtualinherited

Optioinal rtsp function: provide samples per the frame.

Reimplemented in MP3ParserEncoder, and MetaDataFilterEncoder.

setAudioInfo()

virtual void setAudioInfo ( AudioInfo  from )

inlinevirtualinherited

Defines the sample rate, number of channels and bits per sample.

Reimplemented from AudioEncoder.

setOutput()

void setOutput ( Print &  out_stream )

inlineoverridevirtualinherited

Default output assignment (encoders may override to store Print reference)

Reimplemented from AudioEncoder.

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:

• src/AudioTools/AudioCodecs/CodecG7xx.h