OutputMixer< T > Class Template Reference

Mixing of multiple outputs to one final output. More...

#include <AudioOutput.h>

Inheritance diagram for OutputMixer< T >:

Public Member Functions
	OutputMixer (Print &finalOutput, int outputStreamCount)
int	availableForWrite () override
	Provides the bytes available to write for the current stream buffer.
int	availableForWrite (int idx)
	Provides the bytes available to write for the indicated stream index.
bool	begin (int copy_buffer_size_bytes=DEFAULT_BUFFER_SIZE, MemoryType memoryType=PS_RAM)
	Starts the processing.
void	end ()
	Remove all input streams.
virtual void	flush ()
void	flushMixer ()
	Force output to final destination.
void	resize (int size)
	Resizes the buffer to the indicated number of bytes.
void	setOutput (Print &finalOutput)
void	setOutputCount (int count)
void	setWeight (int channel, float weight)
int	size ()
	Number of stremams to which are mixed together.
size_t	write (const uint8_t *buffer_c, size_t bytes) override
size_t	write (int idx, const uint8_t *buffer_c, size_t bytes)
	Write the data for an individual stream idx which will be mixed together.
size_t	write (uint8_t) override

Protected Member Functions
void	allocate_buffers (int size)
void	free_buffers ()
void	update_total_weights ()

Protected Attributes
int	_timeout = 10
Vector< RingBuffer< T > * >	buffers {0}
bool	is_active = false
MemoryType	memory_type
Vector< T >	output {0}
int	output_count
Print *	p_final_output = nullptr
void *	p_memory = nullptr
int	size_bytes
int	stream_idx = 0
float	total_weights = 0.0
Vector< float >	weights {0}

Detailed Description

template<typename T>
class audio_tools::OutputMixer< T >

Mixing of multiple outputs to one final output.

Author

Phil Schatzmann

Copyright

GPLv3

Template Parameters

T

Member Function Documentation

setWeight()

void setWeight ( int  channel, float  weight  )

inline

Defines a new weight for the indicated channel: If you set it to 0.0 it is muted. The initial value is 1.0

write()

size_t write ( const uint8_t *  buffer_c, size_t  bytes  )

inlineoverridevirtual

Write the data from a simgle stream which will be mixed together (the stream idx is increased)

Reimplemented from Print.

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

• src/AudioTools/AudioOutput.h