wirtz
/
OpenAudio_ArduinoLibrary
mirror of https://github.com/chipaudette/OpenAudio_ArduinoLibrary.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Comment additions

Browse Source
master
boblark 3 weeks ago
parent 8fbac3562b
commit ce3a933e05
3 changed files with 70 additions and 39 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 6
      AudioSettings_F32.h
  2. 17
      AudioStream_F32.cpp
  3. 86
      AudioStream_F32.h

6
AudioSettings_F32.h
Unescape View File

@ -2,7 +2,7 @@
#ifndef _AudioSettings_F32_
#define _AudioSettings_F32_
#include <AudioStream.h> // for AUDIO_SAMPLE_RATE_EXACT, AUDIO_BLOCK_SAMPLES
#include <AudioStream.h> // 16-bit audio for AUDIO_SAMPLE_RATE_EXACT, AUDIO_BLOCK_SAMPLES
class AudioSettings_F32 {
public:
@ -10,11 +10,11 @@ class AudioSettings_F32 {
sample_rate_Hz(fs_Hz), audio_block_samples(block_size) {}
const float sample_rate_Hz;
const int audio_block_samples;
float cpu_load_percent(const int n);
float processorUsage(void);
float processorUsageMax(void);
void processorUsageMaxReset(void);
};
#endif
#endif

17
AudioStream_F32.cpp
Unescape View File

@ -67,19 +67,19 @@ audio_block_f32_t * AudioStream_F32::allocate_f32(void)
audio_block_f32_t *block;
uint8_t used;
// f32_memory_pool_available_mask is array of six 32-bit uints with a 1 in position of
// f32_memory_pool_available_mask is array of six 32-bit uints with a 1 in position of
// each available block (max 192). 0 if unavailable (busy) or not allocated at all.
p = f32_memory_pool_available_mask;
/*
/*
if(millis() > 1200) {
Serial.print("AudioStream_F32 ");
Serial.println((uint32_t)*p, BIN); // Just first of 6
}
*/
}
*/
__disable_irq();
do {
avail = *p; if (avail) break;
@ -196,4 +196,3 @@ void AudioConnection_F32::connect(void) {
dst.active = true;
__enable_irq();
}

86
AudioStream_F32.h
Unescape View File

@ -1,15 +1,46 @@
/*
* AudioStream_F32
*
*
* Created: Chip Audette, November 2016
* Purpose; Extend the Teensy Audio Library's "AudioStream" to permit floating-point audio data.
*
* I modeled it directly on the Teensy code in "AudioStream.h" and "AudioStream.cpp", which are
*
* I modeled it directly on the Teensy code in "AudioStream.h" and "AudioStream.cpp", which are
* available here: https://github.com/PaulStoffregen/cores/tree/master/teensy3
*
*
* Added id to audio_block_f32_t class, per Tympan. Bob Larkin June 2020
*
* MIT License. use at your own risk.
*
*
* Thse classes are derived from their equivalents in Teensyduino. Thus:
* Teensyduino Core Library
* http://www.pjrc.com/teensy/
* Copyright (c) 2017 PJRC.COM, LLC.
*
* 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:
*
* 1. The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 2. If the Software is incorporated into a build system that allows
* selection among a list of target devices, then similar target
* devices manufactured by PJRC.COM must be included in the list of
* target devices and selectable in the same manner.
*
* 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.
*
* All additions are under MIT License. use at your own risk.
*/
#ifndef _AudioStream_F32_h
@ -32,22 +63,23 @@ class AudioConnection_F32;
//https://github.com/PaulStoffregen/cores/blob/268848cdb0121f26b7ef6b82b4fb54abbe465427/teensy3/AudioStream.h
// Added id, per Tympan. Should not disturb existing programs. Bob Larkin June 2020
class audio_block_f32_t {
public:
audio_block_f32_t(void) {};
audio_block_f32_t(const AudioSettings_F32 &settings) {
fs_Hz = settings.sample_rate_Hz;
length = settings.audio_block_samples;
};
unsigned char ref_count;
unsigned char memory_pool_index;
unsigned char reserved1;
unsigned char reserved2;
float32_t data[AUDIO_BLOCK_SAMPLES]; // AUDIO_BLOCK_SAMPLES is 128, from AudioStream.h
const int full_length = AUDIO_BLOCK_SAMPLES;
int length = AUDIO_BLOCK_SAMPLES; // AUDIO_BLOCK_SAMPLES is 128, from AudioStream.h
float fs_Hz = AUDIO_SAMPLE_RATE; // AUDIO_SAMPLE_RATE is 44117.64706 from AudioStream.h
unsigned long id;
public:
audio_block_f32_t(void) {};
audio_block_f32_t(const AudioSettings_F32 &settings) {
fs_Hz = settings.sample_rate_Hz;
length = settings.audio_block_samples;
};
unsigned char ref_count;
unsigned char memory_pool_index;
unsigned char reserved1;
unsigned char reserved2;
float32_t data[AUDIO_BLOCK_SAMPLES]; // AUDIO_BLOCK_SAMPLES is 128, from AudioStream.h
const int full_length = AUDIO_BLOCK_SAMPLES;
int length = AUDIO_BLOCK_SAMPLES; // AUDIO_BLOCK_SAMPLES is 128, from AudioStream.h
// For Teensy 4.x, AUDIO_SAMPLE_RATE is 44100
float fs_Hz = AUDIO_SAMPLE_RATE; // T3.x AUDIO_SAMPLE_RATE is 44117.64706
unsigned long id;
};
class AudioConnection_F32
@ -76,7 +108,7 @@ class AudioConnection_F32
class AudioStream_F32 : public AudioStream {
public:
AudioStream_F32(unsigned char n_input_f32, audio_block_f32_t **iqueue) : AudioStream(1, inputQueueArray_i16),
AudioStream_F32(unsigned char n_input_f32, audio_block_f32_t **iqueue) : AudioStream(1, inputQueueArray_i16),
num_inputs_f32(n_input_f32), inputQueue_f32(iqueue) {
//active_f32 = false;
destination_list_f32 = NULL;
@ -86,20 +118,20 @@ class AudioStream_F32 : public AudioStream {
};
static void initialize_f32_memory(audio_block_f32_t *data, unsigned int num);
static void initialize_f32_memory(audio_block_f32_t *data, unsigned int num, const AudioSettings_F32 &settings);
//virtual void update(audio_block_f32_t *) = 0;
//virtual void update(audio_block_f32_t *) = 0;
static uint8_t f32_memory_used;
static uint8_t f32_memory_used_max;
static audio_block_f32_t * allocate_f32(void);
static void release(audio_block_f32_t * block);
protected:
//bool active_f32;
unsigned char num_inputs_f32;
void transmit(audio_block_f32_t *block, unsigned char index = 0);
audio_block_f32_t * receiveReadOnly_f32(unsigned int index = 0);
audio_block_f32_t * receiveWritable_f32(unsigned int index = 0);
audio_block_f32_t * receiveWritable_f32(unsigned int index = 0);
friend class AudioConnection_F32;
private:
AudioConnection_F32 *destination_list_f32;
audio_block_f32_t **inputQueue_f32;

Write Preview
Loading…
Cancel
Save