audio_portaudio_source Class Reference

#include <audio_portaudio_source.h>

Inheritance diagram for audio_portaudio_source:

List of all members.

Public Member Functions
	~audio_portaudio_source ()
bool	check_topology (int ninputs, int noutputs)
	Confirm that ninputs and noutputs is an acceptable combination.
int	work (int ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	just like gr_block::general_work, only this arranges to call consume_each for you
Protected Member Functions
	audio_portaudio_source (int sampling_rate, const std::string device_name, bool ok_to_block)
Friends
PaStreamCallback	portaudio_source_callback
audio_portaudio_source_sptr	audio_portaudio_make_source (int sampling_rate, const std::string device_name, bool ok_to_block)
	PORTAUDIO audio source.

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Detailed Description

\ Audio source using PORTAUDIO

Input samples must be in the range [-1,1].

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Constructor & Destructor Documentation

audio_portaudio_source::audio_portaudio_source	(	int	sampling_rate,
		const std::string	device_name,
		bool	ok_to_block
	)		[protected]

audio_portaudio_source::~audio_portaudio_source

(

)

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Member Function Documentation

bool audio_portaudio_source::check_topology	(	int	ninputs,
		int	noutputs
	)		[virtual]

Confirm that ninputs and noutputs is an acceptable combination.

Parameters:

ninputs	number of input streams connected
noutputs	number of output streams connected

Returns:

true if this is a valid configuration for this block.

This function is called by the runtime system whenever the topology changes. Most classes do not need to override this. This check is in addition to the constraints specified by the input and output gr_io_signatures.

Reimplemented from gr_basic_block.

int audio_portaudio_source::work	(	int	noutput_items,
		gr_vector_const_void_star &	input_items,
		gr_vector_void_star &	output_items
	)		[virtual]

just like gr_block::general_work, only this arranges to call consume_each for you

The user must override work to define the signal processing code

Implements gr_sync_block.

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Friends And Related Function Documentation

audio_portaudio_source_sptr audio_portaudio_make_source	(	int	sampling_rate,
		const std::string	device_name,
		bool	ok_to_block
	)		[friend]

PORTAUDIO audio source.

Parameters:

sampling_rate	sampling rate in Hz
device_name	PORTAUDIO device name, e.g., "pa:"
ok_to_block	true if it's ok for us to block

friend PaStreamCallback portaudio_source_callback [friend]

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

• audio_portaudio_source.h