A simple WAV file encoder. If no AudioEncoderExt is specified the WAV file contains PCM data, otherwise it is encoded as ADPCM. The WAV header is written with the first writing of audio data. Calling begin() is making sure that the header is written again. More...

#include <CodecWAV.h>

Inheritance diagram for WAVEncoder:

Public Member Functions
	WAVEncoder ()=default
	Construct a new WAVEncoder object for PCM data.

	WAVEncoder (AudioEncoderExt &enc, AudioFormat fmt)
	Construct a new WAVEncoder object for ADPCM data.

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

virtual bool	begin () override
	starts the processing using the actual WAVAudioInfo

virtual bool	begin (AudioInfo info)

bool	begin (WAVAudioInfo ai)
	starts the processing

WAVAudioInfo	defaultConfig ()

void	end () override
	stops the processing

bool	isOpen ()

const char *	mime () override
	Provides "audio/wav".

	operator bool () override

virtual void	setAudioInfo (AudioInfo from) override
	Update actual WAVAudioInfo.

virtual void	setAudioInfo (WAVAudioInfo ai)
	Defines the WAVAudioInfo.

void	setDataOffset (uint16_t offset)
	Adds n empty bytes at the beginning of the data.

void	setEncoder (AudioEncoderExt &enc, AudioFormat fmt)

void	setOutput (Print &out) override
	Defines the otuput stream.

virtual size_t	write (const uint8_t *data, size_t len) override
	Writes PCM data to be encoded as WAV.

Protected Member Functions
void	setupEncodedAudio ()

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

Protected Attributes
WAVAudioInfo	audioInfo = defaultConfig()

EncodedAudioOutput	enc_out

WAVHeader	header

bool	header_written = false

AudioInfo	info

volatile bool	is_open = false

AudioEncoderExt *	p_encoder = nullptr

Print *	p_print = nullptr

int64_t	size_limit = 0

Detailed Description

A simple WAV file encoder. If no AudioEncoderExt is specified the WAV file contains PCM data, otherwise it is encoded as ADPCM. The WAV header is written with the first writing of audio data. Calling begin() is making sure that the header is written again.

Author: Phil Schatzmann

Copyright: GPLv3

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

src/AudioTools/AudioCodecs/CodecWAV.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description