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60 lines
1.9 KiB
60 lines
1.9 KiB
/*
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* AudioPlayQueue_F32
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*
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* Created: Chip Audette (OpenAudio), Feb 2017
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* Extended from on Teensy Audio Library
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*
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* License: MIT License. Use at your own risk.
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*
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*/
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/* Notes from Paul Stoffregen (from 4320 LED Video+Sound Project)
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*
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* AudioPlayQueue - Play audio data provided by the Arduino sketch.
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* This object provides functions to allow the sketch code to push data
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* into the audio system.
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*
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* getBuffer();
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* Returns a pointer to an array of 128 int16.
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* This buffer is within the audio library memory pool, providing the most
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* efficient way to input data to the audio system. The buffer is likely
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* to be populated by previously used data, so the entire 128 words should
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* be written before calling playBuffer(). Only a single buffer should be
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* requested at a time. This function may return NULL if no memory
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* is available.
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*
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* playBuffer();
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* Transmit the buffer previously obtained from getBuffer().
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*/
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#ifndef play_queue_f32_h_
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#define play_queue_f32_h_
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#include "Arduino.h"
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#include "AudioStream_F32.h"
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class AudioPlayQueue_F32 : public AudioStream_F32
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{
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//GUI: inputs:0, outputs:1 //this line used for automatic generation of GUI node
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public:
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AudioPlayQueue_F32(void) : AudioStream_F32(0, NULL),
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userblock(NULL), head(0), tail(0) { }
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AudioPlayQueue_F32(const AudioSettings_F32 &settings) : AudioStream_F32(0, NULL),
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userblock(NULL), head(0), tail(0) { }
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//void play(int16_t data);
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//void play(const int16_t *data, uint32_t len);
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//void play(float32_t data);
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//void play(const float32_t *data, uint32_t len);
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void playAudioBlock(audio_block_f32_t *); // Not in I16 library
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bool available(void);
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float32_t * getBuffer(void);
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void playBuffer(void);
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void stop(void);
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//bool isPlaying(void) { return playing; }
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virtual void update(void);
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private:
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audio_block_f32_t *queue[32];
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audio_block_f32_t *userblock;
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volatile uint8_t head, tail;
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};
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#endif
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