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OpenAudio_ArduinoLibrary/output_i2s_f32.h.xxx

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/* output_i2s_f32.h - Input block of float samples from I2S
*
* Adapted to F32 output and Open Audio AudioSettings_F32 by Chip Audette
* Modified for Teensy 4.x Bob Larkin June 2020
*
* Direct from: Audio Library for Teensy 3.X
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
*
* Development of this audio library was funded by PJRC.COM, LLC by sales of
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop
* open source software by purchasing Teensy or other PJRC products.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice, development funding notice, and this permission
* notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/* Extended by Chip Audette, OpenAudio, May 2019
* Converted to F32 and to variable audio block length
* The F32 conversion is under the MIT License. Use at your own risk.
*/
#ifndef output_i2s_f32_h_
#define output_i2s_f32_h_
#include "Arduino.h"
#include "AudioStream_F32.h"
//include "AudioStream.h"
#include "DMAChannel.h"
class AudioOutputI2S_F32 : public AudioStream_F32
{
//GUI: inputs:2, outputs:0 //this line used for automatic generation of GUI node
public:
AudioOutputI2S_F32(void) : AudioStream_F32(2, inputQueueArray) { begin();} //uses default AUDIO_SAMPLE_RATE and BLOCK_SIZE_SAMPLES from AudioStream.h
AudioOutputI2S_F32(const AudioSettings_F32 &settings) : AudioStream_F32(2, inputQueueArray)
{
sample_rate_Hz = settings.sample_rate_Hz;
audio_block_samples = settings.audio_block_samples;
begin();
}
virtual void update(void);
void begin(void);
void begin(bool);
void sub_begin_i32(void);
void sub_begin_i16(void);
friend class AudioInputI2S_F32;
static void scale_f32_to_i16( float32_t *p_f32, float32_t *p_i16, int len) ;
static void scale_f32_to_i24( float32_t *p_f32, float32_t *p_i16, int len) ;
static void scale_f32_to_i32( float32_t *p_f32, float32_t *p_i32, int len) ;
static float setI2SFreq(const float);
/* I16 version supported these for T4:
#if defined(__IMXRT1062__)
friend class AudioOutputI2SQuad;
friend class AudioInputI2SQuad;
friend class AudioOutputI2SHex;
friend class AudioInputI2SHex;
friend class AudioOutputI2SOct;
friend class AudioInputI2SOct;
#endif
*/
protected:
//AudioOutputI2S_F32(const AudioSettings &settings): AudioStream_F32(2, inputQueueArray) {} // to be used only inside AudioOutputI2Sslave !!
static void config_i2s(void);
static void config_i2s(bool);
static void config_i2s_i16(void);
static void config_i2s_i32(void);
static audio_block_f32_t *block_left_1st;
static audio_block_f32_t *block_right_1st;
static bool update_responsibility;
static DMAChannel dma;
static void isr_16(void);
static void isr_32(void);
private:
static audio_block_f32_t *block_left_2nd;
static audio_block_f32_t *block_right_2nd;
static uint16_t block_left_offset;
static uint16_t block_right_offset;
audio_block_f32_t *inputQueueArray[2];
static float sample_rate_Hz;
static int audio_block_samples;
volatile uint8_t enabled = 1;
};
#endif
#if 0
/////////////////////////SAVE //////////////////////
/* output_i2s_f32.h - Input block of float samples from I2S
*
* Adapted to F32 output and Open Audio AudioSettings_F32 by Chip Audette
* Modified for Teensy 4.x Bob Larkin June 2020
*
* Direct from:
* Audio Library for Teensy 3.X
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
*
* Development of this audio library was funded by PJRC.COM, LLC by sales of
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop
* open source software by purchasing Teensy or other PJRC products.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice, development funding notice, and this permission
* notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef output_i2s_f32_h_
#define output_i2s_f32_h_
#include "Arduino.h"
#include "AudioStream_F32.h"
#include "AudioStream.h"
#include "DMAChannel.h"
class AudioOutputI2S_F32 : public AudioStream_F32
{
//GUI: inputs:2, outputs:0 //this line used for automatic generation of GUI node
public:
// To use default AUDIO_SAMPLE_RATE and BLOCK_SIZE_SAMPLES from AudioStream.h:
AudioOutputI2S_F32(void) : AudioStream_F32(2, inputQueueArray) { begin();}
// Or, to allow for change in either:
AudioOutputI2S_F32(const AudioSettings_F32 &settings) : AudioStream_F32(2, inputQueueArray) {
sample_rate_Hz = settings.sample_rate_Hz;
audio_block_samples = settings.audio_block_samples;
begin();
}
virtual void update(void);
void begin(void);
friend class AudioInputI2S_F32;
static void convert_f32_to_i16( float32_t *p_f32, int16_t *p_i16, int len) ; // NOT IN TYMPAN
/* I16 version supported these for T4:
#if defined(__IMXRT1062__)
friend class AudioOutputI2SQuad;
friend class AudioInputI2SQuad;
friend class AudioOutputI2SHex;
friend class AudioInputI2SHex;
friend class AudioOutputI2SOct;
friend class AudioInputI2SOct;
#endif
*/
///////////////////TYMPAN public: /////////////////
//void begin(void);
void begin(bool);
void sub_begin_i32(void);
void sub_begin_i16(void);
friend class AudioInputI2S_F32;
static void scale_f32_to_i16( float32_t *p_f32, float32_t *p_i16, int len) ;
static void scale_f32_to_i24( float32_t *p_f32, float32_t *p_i16, int len) ;
static void scale_f32_to_i32( float32_t *p_f32, float32_t *p_i32, int len) ;
static float setI2SFreq(const float);
////////////////////////////////////////////////
protected:
//AudioOutputI2S_F32(const AudioSettings &settings): AudioStream_F32(2, inputQueueArray) {} // to be used only inside AudioOutputI2Sslave !!
static void config_i2s(void);
static audio_block_f32_t *block_left_1st;
static audio_block_f32_t *block_right_1st;
static bool update_responsibility;
static DMAChannel dma;
static void isr_f32(void);
private:
static audio_block_f32_t *block_left_2nd;
static audio_block_f32_t *block_right_2nd;
static uint16_t block_left_offset;
static uint16_t block_right_offset;
audio_block_f32_t *inputQueueArray[2];
static float sample_rate_Hz;
static int audio_block_samples;
volatile uint8_t enabled = 1;
};
#endif
#endif
// #if 0