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

Output as 16 bit stereo SPDIF on the I2S data output pin. More...

#include <AudioSPDIF.h>

Inheritance diagram for SPDIFOutput:
AudioStream BaseStream AudioInfoSupport AudioInfoSource Stream Print

Public Member Functions

 SPDIFOutput ()=default
 default constructor
virtual ~SPDIFOutput ()
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 ()
 Starting with last or default settings.
bool begin (SPDIFConfig config)
 Start with the provided parameters.
virtual void clearNotifyAudioChange ()
 Deletes all change notify subscriptions.
SPDIFConfig defaultConfig ()
 Provides the default configuration.
void end ()
virtual void flush () override
bool isNotifyActive ()
 Checks if the automatic AudioInfo update is active.
virtual operator bool ()
virtual 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 info)
 Change the audio parameters.
void setNotifyActive (bool flag)
 Deactivate/Reactivate automatic AudioInfo updates: (default is active)
size_t write (const uint8_t *data, size_t len)
 Writes the audio data as SPDIF to the defined output pin.
virtual size_t write (uint8_t ch) override
virtual void writeSilence (size_t len)
 Writes len bytes of silence (=0).

Protected Member Functions

virtual int not_supported (int out, const char *msg="")
void notifyAudioChange (AudioInfo info)
void refillReadBuffer ()
void spdif_buf_init (void)

Protected Attributes

int _timeout = 10
SPDIFConfig cfg
I2SStream i2s
bool i2sOn = false
AudioInfo info
bool is_notify_active = true
Vector< AudioInfoSupport * > notify_vector
RingBuffer< uint8_t > tmp_in {0}
RingBuffer< uint8_t > tmp_out {0}

Detailed Description

Output as 16 bit stereo SPDIF on the I2S data output pin.

Phil Schatzmann

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