audio_osx_source Class Reference

audio source using OSXInput signature is one or two streams of floats. Samples must be in the range [-1,1]. More...

#include <audio_osx_source.h>

Inheritance diagram for audio_osx_source:

List of all members.

Public Member Functions
	audio_osx_source (int sample_rate=44100, const std::string device_name="", bool do_block=true, int channel_config=-1, int max_sample_count=-1)
	~audio_osx_source ()
bool	start ()
	Called to enable drivers, etc for i/o devices.
bool	stop ()
	Called to disable drivers, etc for i/o devices.
bool	IsRunning ()
bool	check_topology (int ninputs, int noutputs)
	Confirm that ninputs and noutputs is an acceptable combination.
int	work (int noutput_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

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Detailed Description

audio source using OSX

Input signature is one or two streams of floats. Samples must be in the range [-1,1].

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Constructor & Destructor Documentation

audio_osx_source::audio_osx_source	(	int	sample_rate = 44100,
		const std::string	device_name = "",
		bool	do_block = true,
		int	channel_config = -1,
		int	max_sample_count = -1
	)

audio_osx_source::~audio_osx_source

(

)

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Member Function Documentation

bool audio_osx_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.

bool audio_osx_source::IsRunning

(

)

bool audio_osx_source::start

(

)

[virtual]

Called to enable drivers, etc for i/o devices.

This allows a block to enable an associated driver to begin transfering data just before we start to execute the scheduler. The end result is that this reduces latency in the pipeline when dealing with audio devices, usrps, etc.

Reimplemented from gr_block.

bool audio_osx_source::stop

(

)

[virtual]

Called to disable drivers, etc for i/o devices.

Reimplemented from gr_block.

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

• audio_osx_source.h