GNU Radio 3.6.3.1 C++ API
audio_portaudio_source Class Reference

Audio source using PORTAUDIOInput samples must be in the range [-1,1]. More...

#include <audio_portaudio_source.h>

Inheritance diagram for audio_portaudio_source:
audio_source gr_sync_block gr_block gr_basic_block gr_msg_accepter gruel::msg_accepter

Public Member Functions

 audio_portaudio_source (int sampling_rate, const std::string device_name, bool ok_to_block)
 ~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

Friends

PaStreamCallback portaudio_source_callback

Additional Inherited Members

- Public Types inherited from audio_source
typedef boost::shared_ptr
< audio_source
sptr
- Protected Types inherited from gr_basic_block
enum  vcolor { WHITE, GREY, BLACK }
- Protected Member Functions inherited from gr_sync_block
 gr_sync_block (void)
 gr_sync_block (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature)
- Protected Attributes inherited from gr_block
std::vector< long > d_max_output_buffer
std::vector< long > d_min_output_buffer

Detailed Description

Audio source using PORTAUDIO

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

Constructor & Destructor Documentation

audio_portaudio_source::audio_portaudio_source ( int  sampling_rate,
const std::string  device_name,
bool  ok_to_block 
)
audio_portaudio_source::~audio_portaudio_source ( )

Member Function Documentation

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

Confirm that ninputs and noutputs is an acceptable combination.

Parameters
ninputsnumber of input streams connected
noutputsnumber 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.

Friends And Related Function Documentation

friend PaStreamCallback portaudio_source_callback
friend

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