Housekeeping of current used libraries.

Enabled compressor of dexed instances by default.

MicroDexed.ino

@@ -533,7 +533,7 @@ void setup() {
     Serial.println(instance_id, DEC);
 #endif
     create_audio_dexed_chain(instance_id);
-    MicroDexed[instance_id]->setCompressor(true);  // just a test for enabling the compressor with default values
+    MicroDexed[instance_id]->setCompressor(true);
   }
 #ifdef DEBUG
   for (uint8_t instance_id = 0; instance_id < NUM_DEXED; instance_id++) {
@@ -2343,7 +2343,7 @@ uint8_t drum_get_slot(uint8_t dt) {
       drum_type[i] = DRUM_NONE;
       Drum[i]->enableInterpolation(false);
       Drum[i]->setPlaybackRate(1.0);
-      drum_counter=i+1;
+      drum_counter = i + 1;
       return (i);
     }
   }

third-party/Synth_Dexed/src/PluginFx.cpp

@@ -48,11 +48,9 @@ inline static float tptlpupw(float & state , float inp , float cutoff , float sr
 //    return (param) * (max - min) + min;
 //}
 
-#ifdef USE_FX
 static float logsc(float param, const float min, const float max, const float rolloff = 19.0f) {
   return ((EXP_FUNC(param * LOG_FUNC(rolloff + 1)) - 1.0f) / (rolloff)) * (max - min) + min;
 }
-#endif
 
 PluginFx::PluginFx() {
   Cutoff = 1.0;

third-party/Synth_Dexed/src/dexed.cpp

@@ -74,10 +74,8 @@ Dexed::Dexed(uint8_t maxnotes, int rate)
   xrun = 0;
   render_time_max = 0;
 
-#ifdef USE_DEXED_COMPRESSOR
   compressor = new Compressor(samplerate);
   use_compressor = false;
-#endif
 }
 
 Dexed::~Dexed()
@@ -190,10 +188,8 @@ void Dexed::getSamples(float32_t* buffer, uint16_t n_samples)
 
   fx.process(buffer, n_samples); // Needed for fx.Gain()!!!
 
-#if defined USE_DEXED_COMPRESSOR
   if (use_compressor == true)
     compressor->doCompression(buffer, n_samples);
-#endif
 }
 
 void Dexed::getSamples(int16_t* buffer, uint16_t n_samples)
@@ -1665,7 +1661,6 @@ void Dexed::getName(char* buffer)
   buffer[10] = '\0';
 }
 
-#ifdef USE_DEXED_COMPRESSOR
 void Dexed::setCompressor(bool enable_compressor)
 {
   use_compressor = enable_compressor;
@@ -1725,4 +1720,3 @@ float32_t Dexed::getCompressionRatio(void)
 {
   return (compressor->getCompressionRatio());
 }
-#endif

third-party/Synth_Dexed/src/dexed.h

@@ -175,7 +175,6 @@ class Dexed
     uint16_t getRenderTimeMax(void);
     void resetRenderTimeMax(void);
     void ControllersRefresh(void);
-#ifdef USE_DEXED_COMPRESSOR
     void setCompressor(bool comp);
     bool getCompressor(void);
     void setCompressorPreGain_dB(float32_t pre_gain);
@@ -188,7 +187,6 @@ class Dexed
     float32_t getCompressorRelease_sec(void);
     float32_t getCompressorThresh_dBFS(void);
     float32_t getCompressionRatio(void);
-#endif
     int16_t checkSystemExclusive(const uint8_t* sysex, const uint16_t len);
 
     // Sound methods
@@ -353,10 +351,8 @@ class Dexed
     void getSamples(float32_t* buffer, uint16_t n_samples);
     void getSamples(int16_t* buffer, uint16_t n_samples);
     void compress(float32_t* wav_in, float32_t* wav_out, uint16_t n, float32_t threshold, float32_t slope, uint16_t sr,  float32_t tla, float32_t twnd, float32_t tatt, float32_t trel);
-#ifdef USE_DEXED_COMPRESSOR
     bool use_compressor;
     Compressor* compressor;
-#endif
 };
 
 #endif

third-party/TeensyVariablePlayback/CMakeLists.txt

@@ -15,13 +15,11 @@ if (NOT DEFINED BUILD_FOR_LINUX)
     import_arduino_library(Wire ${DEPSPATH}/Wire utility)
     import_arduino_library(arm_math ${DEPSPATH}/arm_math/src)
     import_arduino_library(Audio ${DEPSPATH}/Audio utility)
-    import_arduino_library(LittleFS ${DEPSPATH}/LittleFS/src littlefs)
     add_subdirectory(src)
     add_subdirectory(examples)
 else()
     add_subdirectory(src)
     add_subdirectory(test)
-    #add_subdirectory(extras/soundio/playqueue)
     add_subdirectory(extras/soundio/save_raw)
     add_subdirectory(extras/soundio/save_raw_sd)
     add_subdirectory(extras/soundio/save_wav)

third-party/TeensyVariablePlayback/README.md

@@ -9,20 +9,12 @@
 [![Commits](https://img.shields.io/github/commit-activity/m/newdigate/teensy-variable-playback)](https://github.com/newdigate/teensy-variable-playback/graphs/contributors)
 ![s](https://img.shields.io/badge/dynamic/json?color=%23e85b46&label=Patreon&query=data.attributes.patron_count&suffix=%20patrons&url=https%3A%2F%2Fwww.patreon.com%2Fapi%2Fcampaigns%2F4105381)
 
-play 16-bit PCM raw or wav audio samples at variable playback rates on teensy
-* **Note** : this library only works with signed 16-bit integer samples. Floating point samples will not play. 
+play 16-bit audio samples at variable playback rates on teensy
 
 * for best performance, use SDXC UHS 30MB/sec Application Performance Class 2 (A2) class micro sd-card. 
   * [sd classes on wikipedia](https://en.wikipedia.org/wiki/SD_card#cite_ref-93) 
 
 ## updates
-* 16/06/2022: v1.0.14: 
-  * refactored code to generic classes
-  * improve memory leaks
-  * remove calls to StartUsingSPI(), StopUsingSPI(), __disable_irq(), __enable_irq()
-  * intergated with SerialFlash and LittleFS 
-* 25/09/2021: v1.0.13: positionMillis() implemented for AudioPlaySdResmp
-* 25/08/2021: v1.0.12: Skip over RIFF tags in .wav header
 * 12/08/2021: v1.0.11: When playing a mono sample, transmit on both channels (credit to @atoktoto) 
 * 28/07/2021: v1.0.10: Fix issues when starting playback in reverse
 * 23/07/2021: v1.0.9: Fix issue which crashes teensy when playing multiple files from SD card using array of filenames
@@ -108,11 +100,10 @@ graph G {
 
 <details>
   <summary>linux</summary>
-  You can run and test this code on your linux computer. You can write a teensy sketch, and with a few modifications, you can redirect the audio input and output to and from your soundcard. [Soundio](https://github.com/newdigate/teensy-audio-x86-stubs/tree/main/extras/soundio) bindings are optional, you can also run sketches and tests with no audio input or output.
-  You will need to install the following libraries.
   
 ```cmake``` ```gcc or llvm``` ```teensy-x86-stubs```[^](https://github.com/newdigate/teensy-x86-stubs) ```teensy-audio-x86-stubs```[^](https://github.com/newdigate/teensy-audio-x86-stubs) ```teensy-x86-sd-stubs```[^](https://github.com/newdigate/teensy-x86-sd-stubs) ```boost-test``` 
 
+By using stub libraries, we can compile teensy code to native device architecture. To a certain extent, this allows sketches and libraries to be developed, emulated, debugged and unit-tested using linux, on your local device or a build server. In this case I have a few basic tests for the ResamplingSdReader class.
   * install boost unit-test library: 
     * linux: ```sudo apt-get install -yq libboost-test-dev```
     * macos: ```brew install boost```

third-party/TeensyVariablePlayback/examples/CMakeLists.txt

@@ -1,8 +1,6 @@
 cmake_minimum_required(VERSION 3.5)
 add_subdirectory(array)
-add_subdirectory(LittleFS)
 add_subdirectory(sampleloader)
 add_subdirectory(sd_play_all)
 add_subdirectory(sd_raw)
 add_subdirectory(sd_wav)
-add_subdirectory(SerialFlash)

third-party/TeensyVariablePlayback/examples/sd_play_all/sd_play_all.ino

@@ -133,7 +133,6 @@ void populateFilenames(char *directory, char **filenames) {
     if ((m > 0 || a > 0) && (underscore != 0)) {  
         filenames[index] = new char[curfile.length()+1] {0};
         memcpy(filenames[index], curfile.c_str(), curfile.length());
-        index++;
     } 
     files.close();
   }

third-party/TeensyVariablePlayback/library.json

@@ -5,7 +5,7 @@
     "keywords": "sound, audio, sample, resample, pitch, interpolation, legrange, sampler, playback, speed",
     "description": "Teensy Variable Playback",
     "url": "https://github.com/newdigate/teensy-variable-playback",
-    "version": "1.0.14",
+    "version": "1.0.11",
     "export": {
       "exclude": [
         ".vscode",
@@ -26,10 +26,11 @@
       "type": "git",
       "url": "https://github.com/newdigate/teensy-variable-playback"
     },
-    "dependencies":[{
+    "dependencies":
+    {
       "name": "Audio",
       "frameworks": "arduino"
-    }],
+    },
     "examples": [
       "examples/*/*.ino",
       "examples/*/*/*.ino"

third-party/TeensyVariablePlayback/library.properties

@@ -1,5 +1,5 @@
 name=TeensyVariablePlayback
-version=1.0.14
+version=1.0.11
 author=Nic Newdigate
 maintainer=Nic Newdigate
 sentence=Play samples at variable pitch using Teensy Audio Library

third-party/TeensyVariablePlayback/src/CMakeLists.txt

@@ -3,8 +3,12 @@ project(teensy_variable_playback C CXX)
 set(teensy_variable_playback_VERSION 1.0.0)
 set(CMAKE_CXX_STANDARD 11)
 set(SOURCE_FILES
+        playsdresmp.cpp
+        ResamplingSdReader.cpp
+        ResamplingArrayReader.cpp
+        playarrayresmp.cpp
         interpolation.cpp
-        )
+        IndexableFile.cpp)
 
 set(HEADER_FILES
         loop_type.h
@@ -13,19 +17,10 @@ set(HEADER_FILES
         ResamplingSdReader.h
         waveheaderparser.h
         ResamplingArrayReader.h
-        ResamplingReader.h
         playarrayresmp.h
         interpolation.h
         TeensyVariablePlayback.h
-        IndexableFile.h
-        IndexableSerialFlashFile.h
-        IndexableLittleFSFile.h
-        IndexableSDFile.h
-        ResamplingLfsReader.h
-        ResamplingSerialFlashReader.h
-        playlfsresmp.h
-        playserialflashresmp.h
-        )
+        IndexableFile.h)
 
 #set(CMAKE_VERBOSE_MAKEFILE 1)
 if (NOT DEFINED TEENSY_VERSION)

third-party/TeensyVariablePlayback/src/IndexableFile.h

@@ -18,24 +18,19 @@ constexpr bool isPowerOf2(size_t value){
     return !(value == 0) && !(value & (value - 1));
 }
 
-template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS, class TFile> // BUFFER_SIZE needs to be a power of two
+template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS> // BUFFER_SIZE needs to be a power of two
 class IndexableFile {
 public:
     static_assert(isPowerOf2(BUFFER_SIZE), "BUFFER_SIZE must be a power of 2");
 
-    virtual TFile open(const char *filename) = 0;
-
     static constexpr size_t element_size = sizeof(int16_t);
     size_t buffer_to_index_shift;
-    IndexableFile(const char *filename) : 
+    IndexableFile(File file) : 
         _buffers(),
-        buffer_to_index_shift(log2(BUFFER_SIZE)) 
-    {
-            _filename = new char[strlen(filename)+1] {0};
-            memcpy(_filename, filename, strlen(filename));
+        buffer_to_index_shift(log2(BUFFER_SIZE)) {
+    	    _file = file;
     }
-    
-    virtual ~IndexableFile() {
+    ~IndexableFile() {
         close();
     }
 
@@ -54,14 +49,12 @@ public:
             next->buffer = new int16_t[BUFFER_SIZE];
             size_t basePos = indexFor_i << buffer_to_index_shift;
             size_t seekPos = basePos * element_size;
+
+            __disable_irq();
             _file.seek(seekPos);
             int16_t bytesRead = _file.read(next->buffer, BUFFER_SIZE * element_size);
-            #ifndef TEENSYDUINO
-            if (!_file.available()){  
-                _file.close();
-                _file = open(_filename);
-            }
-            #endif
+            __enable_irq();
+            
             next->buffer_size = bytesRead;
             _buffers.push_back(next);
             match = next;
@@ -71,7 +64,9 @@ public:
 
     void close() {
 	    if (_file.available()) {
+            __disable_irq();
             _file.close();
+            __enable_irq();
         }
 
         for (auto && x : _buffers){
@@ -79,16 +74,9 @@ public:
             delete x;
         }
         _buffers.clear();
-
-        if (_filename != nullptr) {
-            delete [] _filename;
-            _filename = nullptr;
-        }    
     }
-
-protected:
-    TFile _file;
-    char *_filename;
+private:
+    File _file;
     std::vector<indexedbuffer*> _buffers;
 
     indexedbuffer* find_with_index(uint32_t i) {
@@ -103,6 +91,4 @@ protected:
 
 }
 
-
-
 #endif 

third-party/TeensyVariablePlayback/src/ResamplingArrayReader.cpp

@@ -264,14 +264,14 @@ bool ResamplingArrayReader::playWav(int16_t *array, uint32_t length)
     WaveHeaderParser wavHeaderParser;
     wavHeaderParser.readWaveHeaderFromBuffer((const char *) array, wav_header);
     if (wav_header.bit_depth != 16) {
-        // Serial.printf("Needs 16 bit audio! Aborting.... (got %d)", wav_header.bit_depth);
+        Serial.printf("Needs 16 bit audio! Aborting.... (got %d)", wav_header.bit_depth);
         return false;
     }
     setNumChannels(wav_header.num_channels);
     _header_offset = 22;
     _file_size = wav_header.data_bytes + 44; //2 bytes per sample
     if (_file_size > length * 2){
-        // Serial.printf("TeensyVariablePlayback: warning: length of array in bytes (%d) is smaller than the file data size in bytes (%d) according to the header - defaulting length to filesize...", length * 2, _file_size);
+        Serial.printf("TeensyVariablePlayback: warning: length of array in bytes (%d) is smaller than the file data size in bytes (%d) according to the header - defaulting length to filesize...", length * 2, _file_size);
         _loop_finish = length;
     } else
         _loop_finish = _file_size / 2;

third-party/TeensyVariablePlayback/src/ResamplingArrayReader.h

@@ -6,44 +6,115 @@
 #include <cstdint>
 #include "loop_type.h"
 #include "interpolation.h"
-#include "ResamplingReader.h"
 
-namespace newdigate {
-
-class ResamplingArrayReader : public ResamplingReader<int16_t, File> {
+class ResamplingArrayReader {
 public:
-    ResamplingArrayReader() :
-        ResamplingReader() {
+    ResamplingArrayReader() {
+
+    }
+
+    void begin(void);
+    bool playRaw(int16_t *array, uint32_t length, uint16_t numChannels);
+    bool playWav(int16_t *array, uint32_t length);
+    bool play();
+    void stop(void);
+    bool isPlaying(void) { return _playing; }
+
+    unsigned int read(void **buf, uint16_t nbyte);
+    bool readNextValue(int16_t *value, uint16_t channelNumber);
+
+    void setPlaybackRate(double f) {
+        _playbackRate = f;
+        if (f < 0.0 && _bufferPosition == 0) {
+            //_file.seek(_file_size);
+            _bufferPosition = _file_size/2 - _numChannels;
+        }
+    }
+
+    float playbackRate() {
+        return _playbackRate;
+    }
+
+    void loop(uint32_t numSamples) {
+        __disable_irq();
+        _loop_start = _bufferPosition;
+        _loop_finish = _bufferPosition + numSamples * _numChannels;
+        _loopType = loop_type::looptype_repeat;
+        __enable_irq();
     }
 
-    virtual ~ResamplingArrayReader() {
+    void setLoopType(loop_type loopType)
+    {
+        _loopType = loopType;
     }
 
-    int16_t getSourceBufferValue(long index) override {
-        return _sourceBuffer[index];
+    loop_type getLoopType(){
+        return _loopType;    
     }
 
-    int available(void) {
-        return _playing;
+    int available(void);
+    void reset(void);
+    void close(void);
+
+    void setLoopStart(uint32_t loop_start) {
+        _loop_start = _header_offset + (loop_start * _numChannels);
+    }
+
+    void setLoopFinish(uint32_t loop_finish) {
+        // sample number, (NOT byte number)
+        _loop_finish = _header_offset + (loop_finish * _numChannels);
+    }
+
+    void setInterpolationType(ResampleInterpolationType interpolationType) {
+        if (interpolationType != _interpolationType) {
+            _interpolationType = interpolationType;
+            initializeInterpolationPoints();
+        }
     }
 
-    int16_t* createSourceBuffer() override {
-        return _sourceBuffer;
+    int16_t getNumChannels() {
+        return _numChannels;
     }
 
-    void close(void) override {
-        if (_playing) {
-            stop();
-            deleteInterpolationPoints();
+    void setNumChannels(uint16_t numChannels) {
+        if (numChannels != _numChannels) {
+            _numChannels = numChannels;
+            initializeInterpolationPoints();
         }
     }
 
-    File open(char *filename) override {
-        return File();
+    void setHeaderSizeInBytes(uint32_t headerSizeInBytes) {
+        _header_offset = headerSizeInBytes / 2;
+        if (_bufferPosition < _header_offset) {
+            if (_playbackRate >= 0) {
+                _bufferPosition = _header_offset;
+            } else
+                _bufferPosition = _loop_finish - _numChannels;
         }
-protected:
+    }
+
+private:
+    volatile bool _playing = false;
+
+    int32_t _file_size;
+    int32_t _header_offset = 0; // == (header size in bytes ) / 2
+
+    double _playbackRate = 1.0;
+    double _remainder = 0.0;
+    loop_type _loopType = looptype_none;
+    int _bufferPosition = 0;
+    int32_t _loop_start = 0;
+    int32_t _loop_finish = 0;
+    int16_t _numChannels = -1;
+    uint16_t _numInterpolationPointsChannels = 0;
+    int16_t *_sourceBuffer = nullptr;
+
+    ResampleInterpolationType _interpolationType = ResampleInterpolationType::resampleinterpolation_none;
+    unsigned int _numInterpolationPoints = 0;
+    InterpolationData **_interpolationPoints = nullptr;
+    void initializeInterpolationPoints(void);
+    void deleteInterpolationPoints(void);
 };
 
-}
 
 #endif //TEENSYAUDIOLIBRARY_RESAMPLINGARRAYREADER_H

third-party/TeensyVariablePlayback/src/ResamplingSdReader.cpp

@@ -262,8 +262,8 @@ bool ResamplingSdReader::play(const char *filename, bool isWave, uint16_t numCha
 
     if (!file) {
 //        StopUsingSPI();
-        // Serial.print(F("Not able to open file: "));
-        // Serial.println(filename);
+        Serial.print(F("Not able to open file: "));
+        Serial.println(filename);
         return false;
     }
 
@@ -276,9 +276,9 @@ bool ResamplingSdReader::play(const char *filename, bool isWave, uint16_t numCha
     
     wavHeaderParser.readWaveHeader(wav_header, file);		
     if (wav_header.bit_depth != 16) {
-        // Serial.print(F("Needs 16 bit audio! Aborting.... (got "));
-        // Serial.print(wav_header.bit_depth);
-        // Serial.println(F(")"));
+        Serial.print(F("Needs 16 bit audio! Aborting.... (got "));
+        Serial.print(wav_header.bit_depth);
+        Serial.println(F(")"));
         __disable_irq();
         file.close();
         __enable_irq();
@@ -290,8 +290,8 @@ bool ResamplingSdReader::play(const char *filename, bool isWave, uint16_t numCha
     
     if (_file_size <= _header_offset * newdigate::IndexableFile<128, 2>::element_size) {
         _playing = false;
-        // Serial.print(F("Wave file contains no samples: "));
-        // Serial.println(filename);
+        Serial.print(F("Wave file contains no samples: "));
+        Serial.println(filename);
 //        StopUsingSPI();
         __disable_irq();
         file.close();
@@ -339,7 +339,7 @@ int ResamplingSdReader::available(void) {
 
 void ResamplingSdReader::close(void) {
 
-    // Serial.printf("sdreader close\n");
+    Serial.printf("sdreader close\n");
     if (_playing)
         stop();
 

third-party/TeensyVariablePlayback/src/ResamplingSdReader.h

@@ -10,72 +10,143 @@
 #include "spi_interrupt.h"
 #include "loop_type.h"
 #include "interpolation.h"
-#include "IndexableSDFile.h"
-#include "ResamplingReader.h"
+#include "IndexableFile.h"
 
 #define RESAMPLE_BUFFER_SAMPLE_SIZE 128
 
 #define B2M (uint32_t)((double)4294967296000.0 / AUDIO_SAMPLE_RATE_EXACT / 2.0) // 97352592
 
-namespace newdigate {
-
-class ResamplingSdReader : public ResamplingReader< IndexableSDFile<128, 2>, File > {
+class ResamplingSdReader {
 public:
-    ResamplingSdReader() : 
-        ResamplingReader() 
-    {
+    ResamplingSdReader() {
     }
 
-    virtual ~ResamplingSdReader() {
+    void begin(void);
+    bool playRaw(const char *filename, uint16_t numChannels);
+    bool playWav(const char *filename);
+
+    bool play();
+    void stop(void);
+    bool isPlaying(void) { return _playing; }
+
+    unsigned int read(int16_t **buf);
+    bool readNextValue(int16_t *value, uint16_t channelNumber);
+
+    void setPlaybackRate(double f) {
+        _playbackRate = f;
+        if (f < 0.0 && _bufferPosition == 0) {
+            //_file.seek(_file_size);
+            _bufferPosition = _file_size / 2 - _numChannels;
+        }
     }
 
-    int16_t getSourceBufferValue(long index) override {
-        return (*_sourceBuffer)[index];
+    double playbackRate() {
+        return _playbackRate;
     }
 
-    int available(void)
+    void setLoopType(loop_type loopType)
     {
-        return _playing;
+        _loopType = loopType;
     }
 
-    File open(char *filename) override {
-        return SD.open(filename);
+    loop_type getLoopType(){
+        return _loopType;    
     }
 
-    void close(void) override
-    {
-        if (_playing)
-            stop();
-        if (_sourceBuffer != nullptr) {
-            _sourceBuffer->close();
-            delete _sourceBuffer;
-            _sourceBuffer = nullptr;
+    int available(void);
+    void reset(void);
+    void close(void);
+
+    void setLoopStart(uint32_t loop_start) {
+        _loop_start = _header_offset + (loop_start * _numChannels);
+    }
+
+    void setLoopFinish(uint32_t loop_finish) {
+        // sample number, (NOT byte number)
+        _loop_finish = _header_offset + (loop_finish * _numChannels);
     }
-        if (_filename != nullptr) {
-            delete [] _filename;
-            _filename = nullptr;
+
+    void setInterpolationType(ResampleInterpolationType interpolationType) {        
+        if (interpolationType != _interpolationType) {            
+            _interpolationType = interpolationType;
+            initializeInterpolationPoints();
         }
-        deleteInterpolationPoints();
     }
 
-    IndexableSDFile<128, 2>* createSourceBuffer() override {
-        return new IndexableSDFile<128, 2>(_filename);
+    int16_t getNumChannels() {
+        return _numChannels;
     }
 
-    uint32_t positionMillis(void) {
-        if (_file_size == 0) return 0;
+    void setNumChannels(uint16_t numChannels) {
+        if (numChannels != _numChannels) {   
+            _numChannels = numChannels;
+            initializeInterpolationPoints();
+        }
+    }
 
-        return (uint32_t) (( (double)_bufferPosition * lengthMillis() ) / (double)(_file_size/2));
+    void setHeaderSize(uint32_t headerSizeInBytes) {
+        _header_offset = headerSizeInBytes / 2;
+        if (_bufferPosition < _header_offset) {
+            if (_playbackRate >= 0) {
+                _bufferPosition = _header_offset;
+            }
+        }
+    }
+
+    uint32_t positionMillis(void) {
+        return ((uint64_t) _file_size * B2M) >> 32;
     }
 
     uint32_t lengthMillis(void) {
-        return ((uint64_t)_file_size * B2M) >> 32;
+        return ((uint64_t) _file_size * B2M) >> 32;
+    }
+private:
+    volatile bool _playing = false;
+
+    uint32_t _file_size;
+    uint32_t _header_offset = 0; // == (header size in bytes ) / 2
+
+    double _playbackRate = 1.0;
+    double _remainder = 0.0;
+    loop_type _loopType = looptype_none;
+    unsigned int _bufferPosition = 0;
+    uint32_t _loop_start = 0;
+    uint32_t _loop_finish = 0;
+    int16_t _numChannels = -1;
+    uint16_t _numInterpolationPointsChannels = 0;
+    newdigate::IndexableFile<128, 2> *_sourceBuffer = nullptr;
+
+    ResampleInterpolationType _interpolationType = ResampleInterpolationType::resampleinterpolation_none;
+    unsigned int _numInterpolationPoints = 0;
+    InterpolationData **_interpolationPoints = nullptr;
+
+    static bool isUsingSPI;
+    void StartUsingSPI(){
+        if (!isUsingSPI) {
+            isUsingSPI = true;
+#if defined(HAS_KINETIS_SDHC)
+            if (!(SIM_SCGC3 & SIM_SCGC3_SDHC)) AudioStartUsingSPI();
+#else
+            AudioStartUsingSPI();
+#endif
+        }
     }
 
-protected:    
+    void StopUsingSPI() {
+        if (isUsingSPI) {
+            isUsingSPI = false;
+#if defined(HAS_KINETIS_SDHC)
+            if (!(SIM_SCGC3 & SIM_SCGC3_SDHC)) AudioStopUsingSPI();
+#else
+            AudioStopUsingSPI();
+#endif
+        }
+    }
 
+    bool play(const char *filename, bool isWave, uint16_t numChannelsIfRaw = 0);
+    void initializeInterpolationPoints(void);
+    void deleteInterpolationPoints(void);
 };
 
-}
 
 #endif //TEENSYAUDIOLIBRARY_RESAMPLINGSDREADER_H

third-party/TeensyVariablePlayback/src/TeensyVariablePlayback.h

@@ -8,10 +8,7 @@
 #include "waveheaderparser.h"
 #include "ResamplingSdReader.h"
 #include "ResamplingArrayReader.h"
-#include "ResamplingLfsReader.h"
-#include "ResamplingSerialFlashReader.h"
 #include "playsdresmp.h"
 #include "playarrayresmp.h"
-#include "playlfsresmp.h"
-#include "playserialflashresmp.h"
+
 #endif //TEENSY_RESAMPLING_ARDUINO_SAMPLER_H

third-party/TeensyVariablePlayback/src/playarrayresmp.h

@@ -11,19 +11,61 @@
 #include "ResamplingArrayReader.h"
 #include "playresmp.h"
 
-class AudioPlayArrayResmp : public AudioPlayResmp<newdigate::ResamplingArrayReader>
+class AudioPlayArrayResmp : public AudioPlayResmp
 {
 public:
     AudioPlayArrayResmp(void) :
-            AudioPlayResmp<newdigate::ResamplingArrayReader>()
+            AudioPlayResmp(),
+            arrayReader()
     {
-        reader = new newdigate::ResamplingArrayReader();
         begin();
     }
 
-    virtual ~AudioPlayArrayResmp() {
-        delete reader;
+    void begin(void);
+    bool playRaw(int16_t *data, uint32_t numSamples, uint16_t numChannels);
+    bool playRaw(const unsigned int *data, uint32_t numSamples, uint16_t numChannels);
+    
+    bool playWav(int16_t *data, uint32_t fileSize);
+    bool playWav(const unsigned int *data, uint32_t fileSize);
+
+    void stop(void);
+    void close(void);
+    bool isPlaying(void) { return arrayReader.isPlaying(); }
+    uint32_t positionMillis(void);
+    uint32_t lengthMillis(void);
+    virtual void update(void);
+
+    void setPlaybackRate(float f) {
+        arrayReader.setPlaybackRate(f);
+    }
+
+    void setLoopType(loop_type t) {
+        arrayReader.setLoopType(t);
+    }
+    
+    void startLoop(uint32_t samples) {
+        arrayReader.loop(samples);
     }
+
+    void setLoopStart(uint32_t loop_start) {
+        arrayReader.setLoopStart(loop_start);
+    }
+
+    void setLoopFinish(uint32_t loop_finish) {
+        arrayReader.setLoopFinish(loop_finish);
+    }
+
+    void enableInterpolation(bool enable) {
+        if (enable)
+            arrayReader.setInterpolationType(ResampleInterpolationType::resampleinterpolation_quadratic);
+        else 
+            arrayReader.setInterpolationType(ResampleInterpolationType::resampleinterpolation_none);
+    }
+private:
+
+    uint32_t file_size;
+    ResamplingArrayReader arrayReader;
+
 };
 
 

third-party/TeensyVariablePlayback/src/playresmp.h

@@ -5,135 +5,20 @@
 #include "Audio.h"
 #include "loop_type.h"
 
-template <class TResamplingReader>
 class AudioPlayResmp : public AudioStream
 {
     public:
-        AudioPlayResmp(): AudioStream(0, NULL), reader(nullptr)
-        {
-        }
-
-        virtual ~AudioPlayResmp() {
-        }
-
-        void begin(void)
-        {
-            reader->begin();
-        }
-
-        bool playRaw(const char *filename, uint16_t numChannels)
-        {
-            stop();
-            return reader->play(filename, false, numChannels);
-        }
-
-        bool playWav(const char *filename)
-        {
-            stop();
-            return reader->play(filename, true, 0);
-        }
-        
-        bool playRaw(int16_t *data, uint32_t numSamples, uint16_t numChannels)
-        {
-            stop();
-            return reader->playRaw(data, numSamples, numChannels);
-        }
-
-        bool playRaw(const unsigned int *data, uint32_t numSamples, uint16_t numChannels) 
-        {
-            return playRaw((int16_t *) data, numSamples, numChannels);
-        }
-
-        bool playWav(int16_t *data, uint32_t fileSize)
-        {
-            stop();
-            return reader->playWav(data, fileSize);
-        }
-
-        bool playWav(const unsigned int *data, uint32_t fileSize) {
-            return playWav((int16_t *) data, fileSize);
-        }
-
-        void setPlaybackRate(float f) {
-            reader->setPlaybackRate(f);
-        }
-
-        void setLoopType(loop_type t) {
-            reader->setLoopType(t);
-        }
-
-        void setLoopStart(uint32_t loop_start) {
-            reader->setLoopStart(loop_start);
-        }
-
-        void setLoopFinish(uint32_t loop_finish) {
-            reader->setLoopFinish(loop_finish);
-        }
-
-        void enableInterpolation(bool enable) {
-            if (enable)
-                reader->setInterpolationType(ResampleInterpolationType::resampleinterpolation_quadratic);
-            else 
-                reader->setInterpolationType(ResampleInterpolationType::resampleinterpolation_none);
-        }
-
-        bool isPlaying(void) {
-            return reader->isPlaying();
-        };
-
-        void stop() {
-            reader->stop();
-        }
-
-        void update()
-        {
-            int _numChannels = reader->getNumChannels();
-            if (_numChannels == -1)
-                return;
-
-            unsigned int n;
-            audio_block_t *blocks[_numChannels];
-            int16_t *data[_numChannels];
-            // only update if we're playing
-            if (!reader->isPlaying()) return;
-
-            // allocate the audio blocks to transmit
-            for (int i=0; i < _numChannels; i++) {
-                blocks[i] = allocate();
-                if (blocks[i] == nullptr) return;
-                data[i] = blocks[i]->data;
-            }
-
-            if (reader->available()) {
-                // we can read more data from the file...
-                n = reader->read((void**)data, AUDIO_BLOCK_SAMPLES);
-                for (int channel=0; channel < _numChannels; channel++) {
-                    memset( &blocks[channel]->data[n], 0, (AUDIO_BLOCK_SAMPLES - n) * 2);
-                    transmit(blocks[channel], channel);
-                }
-
-                if(_numChannels == 1) {
-                    transmit(blocks[0], 1);
-                }
-            } else {
-                reader->close();
-            }
-            for (int channel=0; channel < _numChannels; channel++) {
-                release(blocks[channel]);
-            }
-        }
-        uint32_t positionMillis()
-        {
-            return reader->positionMillis();
-        }
-
-        uint32_t lengthMillis()
-        {
-            return reader->lengthMillis();
-        }
-
-    protected:
-        TResamplingReader *reader;
+        AudioPlayResmp(void): AudioStream(0, NULL) {}
+        virtual ~AudioPlayResmp() {}
+
+        virtual void setPlaybackRate(float f) = 0;
+        virtual void setLoopType(loop_type t) = 0;
+        virtual void setLoopStart(uint32_t loop_start) = 0;
+        virtual void setLoopFinish(uint32_t loop_finish) = 0;
+        virtual void begin() = 0;
+        virtual void enableInterpolation(bool enable) = 0;
+        virtual bool isPlaying(void) = 0;
+        virtual void stop() = 0;
 };
 
 #endif // TEENSY_RESAMPLING_SDREADER_PLAYRESMP_H

third-party/TeensyVariablePlayback/src/playsdresmp.h

@@ -8,24 +8,56 @@
 
 #include "Arduino.h"
 #include "AudioStream.h"
-#include "SD.h"
 #include "stdint.h"
 #include "ResamplingSdReader.h"
 #include "playresmp.h"
 
-class AudioPlaySdResmp : public AudioPlayResmp<newdigate::ResamplingSdReader>
+class AudioPlaySdResmp : public AudioPlayResmp
 {
 public:
     AudioPlaySdResmp(void) :
-        AudioPlayResmp<newdigate::ResamplingSdReader>()
+            AudioPlayResmp(),
+            sdReader()
     {
-        reader = new newdigate::ResamplingSdReader();
         begin();
     }
 
-    virtual ~AudioPlaySdResmp() {
-        delete reader;
+    void begin(void);
+    bool playRaw(const char *filename, uint16_t numChannels);
+    bool playWav(const char *filename);
+    void stop(void);
+    bool isPlaying(void) { return sdReader.isPlaying(); }
+    uint32_t positionMillis(void);
+    uint32_t lengthMillis(void);
+    virtual void update(void);
+
+    void setPlaybackRate(float f) {
+        sdReader.setPlaybackRate(f);
+    }
+
+    void setLoopType(loop_type t) {
+        sdReader.setLoopType(t);
     }
+
+    void setLoopStart(uint32_t loop_start) {
+        sdReader.setLoopStart(loop_start);
+    }
+
+    void setLoopFinish(uint32_t loop_finish) {
+        sdReader.setLoopFinish(loop_finish);
+    }
+
+    void enableInterpolation(bool enable) {
+        if (enable)
+            sdReader.setInterpolationType(ResampleInterpolationType::resampleinterpolation_quadratic);
+        else 
+            sdReader.setInterpolationType(ResampleInterpolationType::resampleinterpolation_none);
+    }
+private:
+
+    uint32_t file_size;
+    ResamplingSdReader sdReader;
+  
 };
 
 

third-party/TeensyVariablePlayback/src/waveheaderparser.h

@@ -14,70 +14,47 @@ using namespace std;
 // from https://gist.github.com/Jon-Schneider/8b7c53d27a7a13346a643dac9c19d34f
 struct wav_header {
     // RIFF Header
-    char riff_header[4] = {0,0,0,0};    // 00 - 03 - Contains "RIFF"
-    int header_chunk_size = 0;  // 04 - 07 - Size of the wav portion of the file, which follows the first 8 bytes. File size - 8
-    char wave_header[4] = {0,0,0,0};    // 08 - 11 - Contains "WAVE"
+    char riff_header[4];    // 00 - 03 - Contains "RIFF"
+    int header_chunk_size;  // 04 - 07 - Size of the wav portion of the file, which follows the first 8 bytes. File size - 8
+    char wave_header[4];    // 08 - 11 - Contains "WAVE"
 
     // Format Header
-    char fmt_header[4] = {0,0,0,0};     // 12 - 15 - Contains "fmt " (includes trailing space)
-    int fmt_chunk_size = 0;     // 16 - 19 - Should be 16 for PCM
-    short audio_format = 0;     // 20 - 21 - Should be 1 for PCM. 3 for IEEE Float
-    short num_channels = 0;     // 22 - 23
-    int sample_rate = 0;        // 24 - 27
-    int byte_rate = 0;          // 28 - 31
-    short sample_alignment = 0; // 32 - 33
-    short bit_depth  = 0;        // 34 - 35
-};
+    char fmt_header[4];     // 12 - 15 - Contains "fmt " (includes trailing space)
+    int fmt_chunk_size;     // 16 - 19 - Should be 16 for PCM
+    short audio_format;     // 20 - 21 - Should be 1 for PCM. 3 for IEEE Float
+    short num_channels;     // 22 - 23
+    int sample_rate;        // 24 - 27
+    int byte_rate;          // 28 - 31
+    short sample_alignment; // 32 - 33
+    short bit_depth;        // 34 - 35
 
-struct wav_data_header {
     // Data
-    char data_header[4] = {0,0,0,0};    // 36 - 39
-    unsigned int data_bytes = 0;// 40 - 43
+    char data_header[4];    // 36 - 39
+    unsigned int data_bytes;// 40 - 43
 };
 
 class WaveHeaderParser {
 public:
-    bool readWaveHeader(const char *filename, wav_header &header, wav_data_header &wav_data_header) {
+    bool readWaveHeader(const char *filename, wav_header &header, wav_header &wav_header) {
+        __disable_irq();
         File wavFile = SD.open(filename);
+        __enable_irq();
         if (!wavFile) {
             Serial.printf("Not able to open wave file... %s\n", filename);
             return false;
         }
-        bool result = readWaveHeader(filename, header, wavFile);
-        if (result) {
-            wavFile.seek(36);
-            unsigned char buffer[8];
-            size_t bytesRead = wavFile.read(buffer, 8);
-            if (bytesRead != 8) {
-                Serial.printf("Not able to read header... %s\n", filename);
-                result = false;
-            }
-
-            if (result) {
-                unsigned infoTagsSize;
-                result = readInfoTags(buffer, 0, infoTagsSize);
-
-                if (result) {
-                    wavFile.seek(36 + infoTagsSize);
-                    bytesRead = wavFile.read(buffer, 8);
-                    if (bytesRead != 8) {
-                        Serial.printf("Not able to read header... %s\n", filename);
-                        return false;
-                    }
-
-                    result = readDataHeader(buffer, 0, wav_data_header);
-                }
-            }
-        }
+        bool result = readWaveHeader(header, wavFile);
         wavFile.close();
         return result;
     }
 
-    bool readWaveHeader(const char *filename, wav_header &header, File &wavFile) {
-        char buffer[36];
-        int bytesRead = wavFile.read(buffer, 36);
-        if (bytesRead != 36) {
-            Serial.printf("expected 36 bytes (was %d)\n", bytesRead);
+    bool readWaveHeader(wav_header &header, File wavFile) {
+        char buffer[44];
+        __disable_irq();
+        int bytesRead = wavFile.read(buffer, 44);
+        __enable_irq();
+        if (bytesRead != 44) {
+            Serial.printf("expected 44 bytes (was %d)\n", bytesRead);
             return false;
         }
         return readWaveHeaderFromBuffer(buffer, header);
@@ -135,45 +112,18 @@ public:
         auto bit_depth = static_cast<unsigned long>(b[35] << 8 | b[34]);
         header.bit_depth = bit_depth;
 
-        return true;
-    }
-
-    bool readInfoTags(unsigned char *buffer, size_t offset, unsigned &infoTagsSize) {
-        if (    buffer[offset+0] == 'L' 
-             && buffer[offset+1] == 'I' 
-             && buffer[offset+2] == 'S' 
-             && buffer[offset+3] == 'T') {
-            infoTagsSize = static_cast<uint32_t>(buffer[offset+7] << 24 | buffer[offset+6] << 16 | buffer[offset+5] << 8 | buffer[offset+4]);    
-            infoTagsSize += 8;
-            return true;
-        }
-
-        if (    buffer[offset+0] == 'd' 
-             && buffer[offset+1] == 'a' 
-             && buffer[offset+2] == 't' 
-             && buffer[offset+3] == 'a') {
-            infoTagsSize = 0;
-            return true;
-        }
-
-        Serial.println("expected 'data' or 'LIST'...");
-        return false;
-    }
-
-    bool readDataHeader(unsigned char *buffer, size_t offset, wav_data_header &data_header) {
-
         for (int i=0; i < 4; i++)
-            data_header.data_header[i] = buffer[i+offset];
-
-        if (buffer[offset+0] != 'd' || buffer[offset+1] != 'a' || buffer[offset+2] != 't' || buffer[offset+3] != 'a') {
+            header.data_header[i] = buffer[i+36];
+        if (buffer[36] != 'd' || buffer[37] != 'a' || buffer[38] != 't' || buffer[39] != 'a') {
             Serial.printf("expected data... (was %d)\n", buffer);
             return false;
         }
 
-        auto data_bytes = static_cast<unsigned long>(buffer[offset+7] << 24 | buffer[offset+6] << 16 | buffer[offset+5] << 8 | buffer[offset+4]);
-        data_header.data_bytes = data_bytes;
+        auto data_bytes = static_cast<unsigned long>(b[43] << 24 | b[42] << 16 | b[41] << 8 | b[40]);
+        header.data_bytes = data_bytes;
         return true;
     }
+
 private:
 };
 

third-party/TeensyVariablePlayback/test/CMakeLists.txt

@@ -57,7 +57,6 @@ if (DEFINED BUILD_FOR_LINUX)
             audio/wav/AudioWavFixture.h
             audio/wav/test_wav_mono_loop_forward_playback.cpp
             audio/wav/test_wav_stereo_loop_forward_playback.cpp
-            audio/wav/test_wav_tags.cpp
 
             low_level/sd/ResamplingReaderFixture.h
             low_level/sd/test_raw_mono_noloop_forward_playback.cpp

third-party/TeensyVariablePlayback/test/audio/array/test_array_mono_loop_forward_playback.cpp

@@ -14,11 +14,6 @@ extern unsigned int kick_raw_len; // in bytes, divide by 2 to get samples
 BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
 
     const uint16_t numberOfChannels = 1;
-
-    const std::string referencePath = "test/resources/reference/";
-    const std::string inputPath = "test/resources/input/";
-    const std::string outputPath = "output/";
-
     BOOST_FIXTURE_TEST_CASE(Array_fwd_1_0000_quadratic_mono_noloop, AudioArrayFixture) {
 
         // GUItool: begin automatically generated code
@@ -30,10 +25,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
         const double playbackRate = 1.0;
         const std::string testName = "Array_fwd_1_0000_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
  
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -64,10 +59,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
         const double playbackRate = 0.5;
         const std::string testName = "Array_fwd_0_5000_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -99,10 +94,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
         const double playbackRate = 2.0;
         const std::string testName = "Array_fwd_2_0000_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
+        testout.saveOutputFile(outputFile.c_str());     
         memory.begin();           
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -134,10 +129,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
         const double playbackRate = 0.7437;
         const std::string testName = "Array_fwd_0_7437_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -170,10 +165,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
         const double playbackRate = 1.7437;
         const std::string testName = "Array_fwd_1_7437_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -205,10 +200,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_mono_loop_forward_playback)
         const double playbackRate = 8.7437;
         const std::string testName = "Array_fwd_8_7437_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();        
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);

third-party/TeensyVariablePlayback/test/audio/array/test_array_stereo_loop_forward_playback.cpp

@@ -14,10 +14,6 @@ extern unsigned int stereo_souljah_raw_len;
 BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
 
     const uint16_t numberOfChannels = 2;
-    const std::string referencePath = "test/resources/reference/";
-    const std::string inputPath = "test/resources/input/";
-    const std::string outputPath = "output/";
-    
     BOOST_FIXTURE_TEST_CASE(Array_fwd_1_0000_quadratic_stereo_noloop, AudioArrayFixture) {
 
         // GUItool: begin automatically generated code
@@ -30,10 +26,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
         const double playbackRate = 1.0;
         const std::string testName = "Array_fwd_1_0000_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
         
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -65,10 +61,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
         const double playbackRate = 0.5;
         const std::string testName = "Array_fwd_0_5000_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -101,10 +97,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
         const double playbackRate = 2.0;
         const std::string testName = "Array_fwd_2_0000_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
+        testout.saveOutputFile(outputFile.c_str());     
         memory.begin();           
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -137,10 +133,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
         const double playbackRate = 0.7437;
         const std::string testName = "Array_fwd_0_7437_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -174,10 +170,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
         const double playbackRate = 1.7437;
         const std::string testName = "Array_fwd_1_7437_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -210,10 +206,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_array_stereo_loop_forward_playback)
         const double playbackRate = 8.7437;
         const std::string testName = "Array_fwd_8_7437_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath+testName+".wav";
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         memory.begin();        
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);

third-party/TeensyVariablePlayback/test/audio/output_test.h

@@ -21,34 +21,33 @@ public:
 	virtual void update(void);
 	void begin(void);
 	static void isr(void);
-	bool saveOutputFile(const char * path, const char* filename){
-		if (num_inputs == 0) return false;
+	void saveOutputFile(const char* filename){
+		if (num_inputs == 0) return;
 		char cwd[500];
 		if (getcwd(cwd, sizeof(cwd)) != NULL) {
 			printf("Current working dir: %s\n", cwd);
 		} else {
 			perror("getcwd() error");
 		}
-		string outputPath = string(cwd) + "/" + string(path);
+		string outputPath = string(cwd) + "/output/";
 		__filesystem::path p(outputPath);
 		if (! __filesystem::exists(p) )
 			__filesystem::create_directories(outputPath);
 		
-		_filePath = outputPath + string(filename);
-		std::cout << "saving output audio .wav file to " << _filePath << std::endl;
-		_outputFile.open(_filePath, ios_base::trunc | ios_base::out);
+		string filePath =  outputPath +  string(filename);
+		std::cout << "saving output audio .wav file to " << filePath << std::endl;
+		_outputFile.open(filePath);
 		if (!_outputFile.is_open()) {
-        	Serial.printf("couldn't open file for recording...%s\n", _filePath.c_str());
-			return false;	
+        	Serial.println("couldn't open file for recording...");			
         } else {
 			_filename = filename;
 			_outputFile.write((char*)test_output_wav_header, 44);
 			_saveToFile = true;			
-			return true;		
 		}
     }
 	void closeOutputfile(uint16_t numChannels) {
 		if (!_saveToFile) return;
+
 		if (_outputFile.is_open()) {
 			_saveToFile = false;
 			char buf[4];
@@ -83,7 +82,6 @@ public:
 	}
 protected:
 	std::ofstream _outputFile;
-	std::string _filePath;
 	static audio_block_t *block_left_1st;
 	static audio_block_t *block_right_1st;
 	static bool update_responsibility;

third-party/TeensyVariablePlayback/test/audio/wav/test_wav_mono_loop_forward_playback.cpp

@@ -11,11 +11,6 @@
 BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
 
     const uint16_t numberOfChannels = 1;
-
-    const std::string referencePath = "test/resources/reference/";
-    const std::string inputPath = "test/resources/input/";
-    const std::string outputPath = "output/";
-
     BOOST_FIXTURE_TEST_CASE(Wav_fwd_1_0000_quadratic_mono_noloop, AudioWavFixture) {
 
         // GUItool: begin automatically generated code
@@ -27,11 +22,11 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         const double playbackRate = 1.0;
         const std::string testName = "Wav_fwd_1_0000_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
-
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        SD.setSDCardFolderPath(referencePath);
+        testout.saveOutputFile(outputFile.c_str());
         
         wave.begin();
         wave.enableInterpolation(true);
@@ -63,11 +58,12 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         const double playbackRate = 0.5;
         const std::string testName = "Wav_fwd_0_5000_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -99,11 +95,12 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         const double playbackRate = 2.0;
         const std::string testName = "Wav_fwd_2_0000_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
+        testout.saveOutputFile(outputFile.c_str());     
         wave.begin();           
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -135,11 +132,12 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         const double playbackRate = 0.7437;
         const std::string testName = "Wav_fwd_0_7437_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -172,11 +170,12 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         const double playbackRate = 1.7437;
         const std::string testName = "Wav_fwd_1_7437_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -208,11 +207,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         const double playbackRate = 8.7437;
         const std::string testName = "Wav_fwd_8_7437_quadratic_mono_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();        
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);

third-party/TeensyVariablePlayback/test/audio/wav/test_wav_stereo_loop_forward_playback.cpp

@@ -10,12 +10,9 @@
     
 BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
     
-    const uint16_t numberOfChannels = 2;
-
     const std::string referencePath = "test/resources/reference/";
-    const std::string inputPath = "test/resources/input/";
-    const std::string outputPath = "output/";
 
+    const uint16_t numberOfChannels = 2;
     BOOST_FIXTURE_TEST_CASE(Wav_fwd_1_0000_quadratic_stereo_noloop, AudioWavFixture) {
 
         // GUItool: begin automatically generated code
@@ -28,11 +25,11 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
         const double playbackRate = 1.0;
         const std::string testName = "Wav_fwd_1_0000_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
         
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -64,11 +61,11 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
         const double playbackRate = 0.5;
         const std::string testName = "Wav_fwd_0_5000_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
     
         wave.begin();
         wave.enableInterpolation(true);
@@ -102,11 +99,10 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
         const double playbackRate = 2.0;
         const std::string testName = "Wav_fwd_2_0000_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        const std::string outputFileName = "output/" + outputFile;
+        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
+        testout.saveOutputFile(outputFile.c_str());     
         wave.begin();           
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -139,11 +135,11 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
         const double playbackRate = 0.7437;
         const std::string testName = "Wav_fwd_0_7437_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -177,11 +173,11 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
         const double playbackRate = 1.7437;
         const std::string testName = "Wav_fwd_1_7437_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -214,11 +210,11 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_stereo_loop_forward_playback)
         const double playbackRate = 8.7437;
         const std::string testName = "Wav_fwd_8_7437_quadratic_stereo_noloop";
         const std::string outputFile = testName+".wav";
-        const std::string outputFileName = outputPath + outputFile;
+        const std::string outputFileName = "output/" + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(inputPath);
+        SD.setSDCardFolderPath(referencePath);
 
-        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
+        testout.saveOutputFile(outputFile.c_str());
         wave.begin();        
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);

third-party/TeensyVariablePlayback/test/low_level/array/ResamplingArrayFixture.h

@@ -10,14 +10,14 @@
 struct ResamplingArrayFixture {
 
     ResamplingArrayFixture()  {
-        resamplingArrayReader = new newdigate::ResamplingArrayReader();
+        resamplingArrayReader = new ResamplingArrayReader();
     }
 
     ~ResamplingArrayFixture() {
         delete resamplingArrayReader;
     }
 
-    newdigate::ResamplingArrayReader * resamplingArrayReader;
+    ResamplingArrayReader * resamplingArrayReader;
 };
 
 #endif //TEENSY_RESAMPLING_SDREADER_RESAMPLINGARRAYFIXTURE_H

third-party/TeensyVariablePlayback/test/low_level/arraywav/ResamplingArrayWavFixture.h

@@ -10,14 +10,14 @@
 struct ResamplingArrayWavFixture {
 
     ResamplingArrayWavFixture()  {
-        resamplingArrayReader = new newdigate::ResamplingArrayReader();
+        resamplingArrayReader = new ResamplingArrayReader();
     }
 
     ~ResamplingArrayWavFixture() {
         delete resamplingArrayReader;
     }
 
-    newdigate::ResamplingArrayReader * resamplingArrayReader;
+    ResamplingArrayReader * resamplingArrayReader;
 };
 
 #endif //TEENSY_RESAMPLING_SDREADER_RESAMPLINGARRAYWAVFIXTURE_H

third-party/TeensyVariablePlayback/test/low_level/indexedfile/test_indexablefile.cpp

@@ -2,7 +2,7 @@
 #include "IndexedFileFixture.h"
 
 #include <SD.h>
-#include "IndexableSDFile.h"
+#include "IndexableFile.h"
 
 BOOST_AUTO_TEST_SUITE(test_indexablefile)
 
@@ -15,7 +15,7 @@ BOOST_AUTO_TEST_SUITE(test_indexablefile)
         }
         SD.setSDCardFileData((char*)file_contents, sample_size * 2);
 
-        newdigate::IndexableSDFile<16, 2> indexable("blah.h");               // use max 2 buffers, with 16 elements each....
+        newdigate::IndexableFile<16, 2> indexable("blah.h");               // use max 2 buffers, with 16 elements each....
 
         /*
         for (int i=0; i<sample_size; i++) {

third-party/TeensyVariablePlayback/test/low_level/sd/ResamplingReaderFixture.h

@@ -10,14 +10,14 @@
 struct ResamplingReaderFixture {
 
     ResamplingReaderFixture()  {
-        resamplingSdReader = new newdigate::ResamplingSdReader();
+        resamplingSdReader = new ResamplingSdReader();
     }
 
     ~ResamplingReaderFixture() {
         delete resamplingSdReader;
     }
 
-    newdigate::ResamplingSdReader * resamplingSdReader;
+    ResamplingSdReader * resamplingSdReader;
 };
 
 #endif //TEENSY_RESAMPLING_SDREADER_RESAMPLINGREADERFIXTURE_H

third-party/TeensyVariablePlayback/test/low_level/sd/test_raw_mono_noloop_forward_double_rate_playback.cpp

@@ -18,7 +18,7 @@ BOOST_AUTO_TEST_SUITE(test_raw_mono_noloop_forward_double_rate_playback)
         SD.setSDCardFileData((char *) dataSource, size_of_datasource * 2);
     }
 
-    void testReadForwardAtDoublePlaybackRate(const uint32_t size_of_datasource, newdigate::ResamplingSdReader *resamplingSdReader) {
+    void testReadForwardAtDoublePlaybackRate(const uint32_t size_of_datasource, ResamplingSdReader *resamplingSdReader) {
         printf("test_raw_mono_noloop_forward_double_rate_playback::testReadForwardAtDoublePlaybackRate(rate:%.2f\tsamples:%d)\n", playBackRate, size_of_datasource);
 
         int16_t dataSource[size_of_datasource];

third-party/TeensyVariablePlayback/test/low_level/sd/test_raw_mono_noloop_forward_playback.cpp

@@ -24,7 +24,7 @@ BOOST_AUTO_TEST_SUITE(test_raw_mono_noloop_forward_playback)
 
         resamplingSdReader->begin();
         resamplingSdReader->setPlaybackRate(1.0);
-        resamplingSdReader->play("test2.bin", false, 1);
+        resamplingSdReader->playRaw("test2.bin", 1);
         resamplingSdReader->setLoopType(looptype_none);
         resamplingSdReader->setInterpolationType(ResampleInterpolationType::resampleinterpolation_quadratic);
         int16_t actual[1024];

third-party/TeensyVariablePlayback/test/low_level/wav_header/test_parse_wave_header.cpp

@@ -23,8 +23,7 @@ BOOST_AUTO_TEST_SUITE(WaveHeaderParsingTests)
         SD.setSDCardFileData((char*) test_sndhdrdata_sndhdr_wav, test_sndhdrdata_sndhdr_wav_len);
 
         wav_header header;
-        wav_data_header data_header;
-        bool success = waveHeaderParser->readWaveHeader("blah.wav", header, data_header);
+        bool success = waveHeaderParser->readWaveHeader("blah.wav", header);
         BOOST_CHECK_EQUAL(success, true);
         const char expectedRIFF[5] = "RIFF";
         BOOST_CHECK_EQUAL_COLLECTIONS(&header.riff_header[0], &header.riff_header[3],&expectedRIFF[0], &expectedRIFF[3]);
@@ -34,7 +33,7 @@ BOOST_AUTO_TEST_SUITE(WaveHeaderParsingTests)
         const char expectedfmt[5] = "fmt ";
         BOOST_CHECK_EQUAL_COLLECTIONS(&header.fmt_header[0], &header.fmt_header[3],&expectedfmt[0], &expectedfmt[3]);
         const char expecteddata[5] = "data";
-        BOOST_CHECK_EQUAL_COLLECTIONS(&data_header.data_header[0], &data_header.data_header[3],&expecteddata[0], &expecteddata[3]);
+        BOOST_CHECK_EQUAL_COLLECTIONS(&header.data_header[0], &header.data_header[3],&expecteddata[0], &expecteddata[3]);
         //BOOST_CHECK_EQUAL(File::numOpenFiles,0);
         //BOOST_CHECK_EQUAL(File::numInstances,0);
     }