audio_portaudio_source Class Reference

#include <audio_portaudio_source.h>

Inheritance diagram for audio_portaudio_source:

[legend]Collaboration diagram for audio_portaudio_source:

[legend]List of all members.

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Detailed Description

\ Audio source using PORTAUDIO

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

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)

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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  ninput_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]

audio source. Parameters: sampling_rate  sampling rate in Hz dev  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 files:

• audio_portaudio_source.h
• audio_portaudio_source.cc

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