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87 lines
3.4 KiB
87 lines
3.4 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 Audio Library for Teensy 3.X
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* License: MIT License. Use at your own risk.
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*
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* Rebuilt Feb 2023 to include stall/non-stall behavior and max buffers.
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* This is slightly adapted from the updated play_queue in the I16
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* Teensy Audio library. Thanks toJonathan Oakley for the improvements.
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* Bob Larkin bob@janbob.com
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*
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* Audio Library for Teensy 3.X
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* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
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*
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* Development of this audio library was funded by PJRC.COM, LLC by sales of
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* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop
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* open source software by purchasing Teensy or other PJRC products.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice, development funding notice, and this permission
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* notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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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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private:
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#if defined(__IMXRT1062__) || defined(__MK66FX1M0__) || defined(__MK64FX512__)
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static const unsigned int MAX_BUFFERS = 80;
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#else
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static const unsigned int MAX_BUFFERS = 32;
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#endif
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public:
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AudioPlayQueue_F32(void) : AudioStream_F32(0, NULL),
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userblock(NULL), uptr(0), head(0), tail(0), max_buffers(MAX_BUFFERS) { }
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AudioPlayQueue_F32(const AudioSettings_F32 &settings) : AudioStream_F32(0, NULL),
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userblock(NULL), uptr(0), head(0), tail(0), max_buffers(MAX_BUFFERS) { }
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uint32_t play(float32_t data);
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uint32_t play(const float32_t *data, uint32_t len);
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void playAudioBlock(audio_block_f32_t *audio_block);
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bool available(void);
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// Returns a pointer to an array of AUDIO_BLOCK_SAMPLES (usually 128)
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// float32_t. This buffer is within the audio library memory pool.
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// Only a single buffer is allocated at any one time: repeated calls
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// to getBuffer() without calling playBuffer() will yield the same address.
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float32_t * getBuffer(void);
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uint32_t playBuffer(void);
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void stop(void);
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void setMaxBuffers(uint8_t);
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virtual void update(void);
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enum behaviour_e {ORIGINAL,NON_STALLING};
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void setBehaviour(behaviour_e behave)
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{
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behaviour = behave;
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}
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private:
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audio_block_f32_t *queue[MAX_BUFFERS];
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audio_block_f32_t *userblock;
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unsigned int uptr; // actually an index, NOT a pointer!
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volatile uint8_t head, tail;
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volatile uint8_t max_buffers;
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behaviour_e behaviour;
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};
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#endif
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