Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
PortAudioStream Class Reference

Arduino Audio Stream using PortAudio. More...

#include <PortAudioStream.h>

Inheritance diagram for PortAudioStream:
AudioStream BaseStream AudioInfoSupport AudioInfoSource Stream Print

Public Member Functions

virtual void addNotifyAudioChange (AudioInfoSupport &bi)
 Adds target to be notified about audio changes.
virtual AudioInfo audioInfo () override
 provides the actual input AudioInfo
virtual AudioInfo audioInfoOut ()
 provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream
virtual int available () override
virtual int availableForWrite () override
bool begin () override
bool begin (PortAudioConfig info)
virtual void clearNotifyAudioChange ()
 Deletes all change notify subscriptions.
PortAudioConfig defaultConfig ()
PortAudioConfig defaultConfig (RxTxMode mode)
void end () override
virtual void flush () override
bool isNotifyActive ()
 Checks if the automatic AudioInfo update is active.
 operator bool ()
size_t readBytes (uint8_t *data, size_t len) override
virtual size_t readSilence (uint8_t *buffer, size_t length)
 Source to generate silence: just sets the buffer to 0.
virtual bool removeNotifyAudioChange (AudioInfoSupport &bi)
 Removes a target in order not to be notified about audio changes.
void setAudioInfo (AudioInfo in) override
 notification of audio info change
void setNotifyActive (bool flag)
 Deactivate/Reactivate automatic AudioInfo updates: (default is active)
size_t write (const uint8_t *data, size_t len) override
virtual size_t write (uint8_t ch) override
virtual void writeSilence (size_t len)
 Writes len bytes of silence (=0).

Protected Member Functions

int bytesPerSample ()
PaSampleFormat getFormat ()
virtual int not_supported (int out, const char *msg="")
void notifyAudioChange (AudioInfo info)
void refillReadBuffer ()
void startStream ()
 automatically start the stream when we start to get data

Protected Attributes

int _timeout = 10
int buffer_size = 10*1024
PaError err = paNoError
PortAudioConfig info
bool is_notify_active = true
Vector< AudioInfoSupport * > notify_vector
PaStream * stream = nullptr
bool stream_started = false
RingBuffer< uint8_t > tmp_in {0}
RingBuffer< uint8_t > tmp_out {0}

Detailed Description

Arduino Audio Stream using PortAudio.

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