Adding newer libraries to third party.

Fixing some accidentally replaced strlcpy() in some library files.

third-party/ArduinoJson/extras/tests/JsonArray/add.cpp

@@ -42,7 +42,7 @@ TEST_CASE("JsonArray::add()") {
   SECTION("vla") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "world");
+    strcpy(vla, "world");
 
     array.add(vla);
 

third-party/ArduinoJson/extras/tests/JsonArray/subscript.cpp

@@ -137,7 +137,7 @@ TEST_CASE("JsonArray::operator[]") {
   SECTION("set(VLA)") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "world");
+    strcpy(vla, "world");
 
     array.add("hello");
     array[0].set(vla);
@@ -148,7 +148,7 @@ TEST_CASE("JsonArray::operator[]") {
   SECTION("operator=(VLA)") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "world");
+    strcpy(vla, "world");
 
     array.add("hello");
     array[0] = vla;

third-party/ArduinoJson/extras/tests/JsonDeserializer/filter.cpp

@@ -746,7 +746,7 @@ TEST_CASE("Overloads") {
   SECTION("char[n], Filter") {
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "{}");
+    strcpy(vla, "{}");
     deserializeJson(doc, vla, Filter(filter));
   }
 #endif
@@ -774,7 +774,7 @@ TEST_CASE("Overloads") {
   SECTION("char[n], Filter, NestingLimit") {
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "{}");
+    strcpy(vla, "{}");
     deserializeJson(doc, vla, Filter(filter), NestingLimit(5));
   }
 #endif
@@ -802,7 +802,7 @@ TEST_CASE("Overloads") {
   SECTION("char[n], NestingLimit, Filter") {
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "{}");
+    strcpy(vla, "{}");
     deserializeJson(doc, vla, NestingLimit(5), Filter(filter));
   }
 #endif

third-party/ArduinoJson/extras/tests/JsonDeserializer/input_types.cpp

@@ -123,7 +123,7 @@ TEST_CASE("deserializeJson(std::istream&)") {
 TEST_CASE("deserializeJson(VLA)") {
   size_t i = 9;
   char vla[i];
-  strlcpy(vla, "{\"a\":42}");
+  strcpy(vla, "{\"a\":42}");
 
   StaticJsonDocument<JSON_OBJECT_SIZE(1)> doc;
   DeserializationError err = deserializeJson(doc, vla);

third-party/ArduinoJson/extras/tests/JsonDocument/ElementProxy.cpp

@@ -27,7 +27,7 @@ TEST_CASE("ElementProxy::add()") {
   SECTION("set(char[])") {
     char s[] = "world";
     ep.add(s);
-    strlcpy(s, "!!!!!");
+    strcpy(s, "!!!!!");
 
     REQUIRE(doc.as<std::string>() == "[[\"world\"]]");
   }
@@ -133,7 +133,7 @@ TEST_CASE("ElementProxy::remove()") {
 
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "b");
+    strcpy(vla, "b");
     ep.remove(vla);
 
     REQUIRE(ep.as<std::string>() == "{\"a\":1}");
@@ -160,7 +160,7 @@ TEST_CASE("ElementProxy::set()") {
   SECTION("set(char[])") {
     char s[] = "world";
     ep.set(s);
-    strlcpy(s, "!!!!!");
+    strcpy(s, "!!!!!");
 
     REQUIRE(doc.as<std::string>() == "[\"world\"]");
   }

third-party/ArduinoJson/extras/tests/JsonDocument/MemberProxy.cpp

@@ -174,7 +174,7 @@ TEST_CASE("MemberProxy::remove()") {
 
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "b");
+    strcpy(vla, "b");
     mp.remove(vla);
 
     REQUIRE(mp.as<std::string>() == "{\"a\":1}");
@@ -201,7 +201,7 @@ TEST_CASE("MemberProxy::set()") {
   SECTION("set(char[])") {  // issue #1191
     char s[] = "world";
     mp.set(s);
-    strlcpy(s, "!!!!!");
+    strcpy(s, "!!!!!");
 
     REQUIRE(doc.as<std::string>() == "{\"hello\":\"world\"}");
   }

third-party/ArduinoJson/extras/tests/JsonDocument/remove.cpp

@@ -43,7 +43,7 @@ TEST_CASE("JsonDocument::remove()") {
 
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "b");
+    strcpy(vla, "b");
     doc.remove(vla);
 
     REQUIRE(doc.as<std::string>() == "{\"a\":1}");

third-party/ArduinoJson/extras/tests/JsonObject/containsKey.cpp

@@ -31,7 +31,7 @@ TEST_CASE("JsonObject::containsKey()") {
   SECTION("key is a VLA") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     REQUIRE(true == obj.containsKey(vla));
   }

third-party/ArduinoJson/extras/tests/JsonObject/createNestedArray.cpp

@@ -18,7 +18,7 @@ TEST_CASE("JsonObject::createNestedArray()") {
   SECTION("key is a VLA") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     JsonArray arr = obj.createNestedArray(vla);
     REQUIRE(arr.isNull() == false);

third-party/ArduinoJson/extras/tests/JsonObject/createNestedObject.cpp

@@ -17,7 +17,7 @@ TEST_CASE("JsonObject::createNestedObject()") {
   SECTION("key is a VLA") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     obj.createNestedObject(vla);
   }

third-party/ArduinoJson/extras/tests/JsonObject/remove.cpp

@@ -62,7 +62,7 @@ TEST_CASE("JsonObject::remove()") {
   SECTION("key is a vla") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "b");
+    strcpy(vla, "b");
     obj.remove(vla);
 
     serializeJson(obj, result);

third-party/ArduinoJson/extras/tests/JsonObject/subscript.cpp

@@ -174,7 +174,7 @@ TEST_CASE("JsonObject::operator[]") {
   SECTION("obj[VLA] = str") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     obj[vla] = "world";
 
@@ -184,7 +184,7 @@ TEST_CASE("JsonObject::operator[]") {
   SECTION("obj[str] = VLA") {  // issue #416
     size_t i = 32;
     char vla[i];
-    strlcpy(vla, "world");
+    strcpy(vla, "world");
 
     obj["hello"] = vla;
 
@@ -194,7 +194,7 @@ TEST_CASE("JsonObject::operator[]") {
   SECTION("obj.set(VLA, str)") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     obj[vla] = "world";
 
@@ -204,7 +204,7 @@ TEST_CASE("JsonObject::operator[]") {
   SECTION("obj.set(str, VLA)") {
     size_t i = 32;
     char vla[i];
-    strlcpy(vla, "world");
+    strcpy(vla, "world");
 
     obj["hello"].set(vla);
 
@@ -214,7 +214,7 @@ TEST_CASE("JsonObject::operator[]") {
   SECTION("obj[VLA]") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     deserializeJson(doc, "{\"hello\":\"world\"}");
 

third-party/ArduinoJson/extras/tests/JsonVariant/set.cpp

@@ -14,9 +14,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
   SECTION("const char*") {
     char str[16];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(static_cast<const char*>(str));
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "world");  // stores by pointer
@@ -32,9 +32,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
   SECTION("char*") {
     char str[16];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(str);
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "hello");  // stores by copy
@@ -50,9 +50,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
   SECTION("unsigned char*") {
     char str[16];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(reinterpret_cast<unsigned char*>(str));
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "hello");  // stores by copy
@@ -61,9 +61,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
   SECTION("signed char*") {
     char str[16];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(reinterpret_cast<signed char*>(str));
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "hello");  // stores by copy
@@ -74,9 +74,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
     size_t n = 16;
     char str[n];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(str);
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "hello");  // stores by copy
@@ -97,9 +97,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
   SECTION("static JsonString") {
     char str[16];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(JsonString(str, JsonString::Linked));
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "world");  // stores by pointer
@@ -108,9 +108,9 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
   SECTION("non-static JsonString") {
     char str[16];
 
-    strlcpy(str, "hello");
+    strcpy(str, "hello");
     bool result = variant.set(JsonString(str, JsonString::Copied));
-    strlcpy(str, "world");
+    strcpy(str, "world");
 
     REQUIRE(result == true);
     REQUIRE(variant == "hello");  // stores by copy

third-party/ArduinoJson/extras/tests/JsonVariant/subscript.cpp

@@ -110,7 +110,7 @@ TEST_CASE("JsonVariant::operator[]") {
   SECTION("key is a VLA") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     deserializeJson(doc, "{\"hello\":\"world\"}");
     JsonVariant variant = doc.as<JsonVariant>();
@@ -121,7 +121,7 @@ TEST_CASE("JsonVariant::operator[]") {
   SECTION("key is a VLA, const JsonVariant") {
     size_t i = 16;
     char vla[i];
-    strlcpy(vla, "hello");
+    strcpy(vla, "hello");
 
     deserializeJson(doc, "{\"hello\":\"world\"}");
     const JsonVariant variant = doc.as<JsonVariant>();

third-party/ArduinoJson/extras/tests/MsgPackDeserializer/filter.cpp

@@ -1070,7 +1070,7 @@ TEST_CASE("Overloads") {
   SECTION("char[n], Filter") {
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "{}");
+    strcpy(vla, "{}");
     deserializeMsgPack(doc, vla, Filter(filter));
   }
 #endif
@@ -1098,7 +1098,7 @@ TEST_CASE("Overloads") {
   SECTION("char[n], Filter, NestingLimit") {
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "{}");
+    strcpy(vla, "{}");
     deserializeMsgPack(doc, vla, Filter(filter), NestingLimit(5));
   }
 #endif
@@ -1126,7 +1126,7 @@ TEST_CASE("Overloads") {
   SECTION("char[n], NestingLimit, Filter") {
     size_t i = 4;
     char vla[i];
-    strlcpy(vla, "{}");
+    strcpy(vla, "{}");
     deserializeMsgPack(doc, vla, NestingLimit(5), Filter(filter));
   }
 #endif

third-party/LCDMenuLib2/src/LCDMenuLib2_macros.h

@@ -97,13 +97,13 @@
                 const char g_LCDML_DISP_lang_ ## lang ## _ ## name ##_var[] = {content}
             #define LCDML_getCustomContent(lang, var, id) \
                 if(id < _LCDML_NO_FUNC) {\
-                    strlcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[id]); \
+                    strcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[id]); \
                 }
             #define LCDML_createCustomLang(N, lang) \
                 const char * g_LCDML_DISP_lang_ ## lang ## _table[] = { LCDML_DISP_lang_repeat(N, lang) }
             #define LCDML_getCustomElementName(lang, var, element_id) \
                 if(element_id < _LCDML_NO_FUNC && (sizeof(g_LCDML_DISP_lang_ ## lang ## _table)-1) >= element_id) {\
-                    strlcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[element_id]);\
+                    strcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[element_id]);\
                 }
         #else
             // stored in flash (Arduino)
@@ -112,7 +112,7 @@
 
              #define LCDML_getCustomContent(lang, var, id) \
                 if(id < _LCDML_NO_FUNC) {\
-                    strlcpy_P(var, (char*)pgm_read_word(&(g_LCDML_DISP_lang_ ## lang ## _table[id]))); \
+                    strcpy_P(var, (char*)pgm_read_word(&(g_LCDML_DISP_lang_ ## lang ## _table[id]))); \
                 }     
 
             #define LCDML_createCustomLang(N, lang) \
@@ -120,7 +120,7 @@
 
             #define LCDML_getCustomElementName(lang, var, element_id) \
                 if(element_id < _LCDML_NO_FUNC && (sizeof(g_LCDML_DISP_lang_ ## lang ## _table)-1) >= element_id) {\
-                    strlcpy_P(var, (char*)pgm_read_word(&(g_LCDML_DISP_lang_ ## lang ## _table[element_id])));\
+                    strcpy_P(var, (char*)pgm_read_word(&(g_LCDML_DISP_lang_ ## lang ## _table[element_id])));\
             }
         #endif
 
@@ -131,7 +131,7 @@
 
         #define LCDML_getCustomContent(lang, var, id) \
             if(id < _LCDML_NO_FUNC) {\
-                strlcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[id]); \
+                strcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[id]); \
             }
 
          #define LCDML_createCustomLang(N, lang) \
@@ -139,7 +139,7 @@
 
         #define LCDML_getCustomElementName(lang, var, element_id) \
             if(element_id < _LCDML_NO_FUNC && (sizeof(g_LCDML_DISP_lang_ ## lang ## _table)-1) >= element_id) {\
-                strlcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[element_id]);\
+                strcpy(var, g_LCDML_DISP_lang_ ## lang ## _table[element_id]);\
             }
 
     #endif

third-party/Synth_MDA_EPiano/src/mdaEPiano.cpp

@@ -116,7 +116,7 @@ mdaEPiano::mdaEPiano(uint8_t nvoices) // mdaEPiano::mdaEPiano(audioMasterCallbac
 
 void mdaEPiano::fillpatch(int32_t p, char *name, float p0, float p1, float p2, float p3, float p4, float p5, float p6, float p7, float p8, float p9, float p10,float p11)
 {
-  strlcpy(programs[p].name, name);
+  strlcpy(programs[p].name, name, sizeof(programs[p].name));
   programs[p].param[0] = p0;  programs[p].param[1] = p1;
   programs[p].param[2] = p2;  programs[p].param[3] = p3;
   programs[p].param[4] = p4;  programs[p].param[5] = p5;

third-party/TeensyVariablePlayback/CMakeLists.txt

@@ -15,11 +15,13 @@ 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

@@ -9,12 +9,20 @@
 [![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 audio samples at variable playback rates on teensy
+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. 
 
 * 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
@@ -100,10 +108,11 @@ 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

@@ -1,6 +1,8 @@
 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/LittleFS/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.10)
+project(sd_raw)
+set(CMAKE_CXX_STANDARD 14)
+add_definitions(-DPROG_FLASH_SIZE=10000)
+teensy_include_directories(../../src)
+teensy_add_executable(littlefs_raw littlefs_raw.ino)
+teensy_target_link_libraries(littlefs_raw teensy_variable_playback  SD SdFat Audio LittleFS SPI SerialFlash cores Wire arm_math)

third-party/TeensyVariablePlayback/examples/LittleFS/littlefs_raw.ino

@@ -0,0 +1,95 @@
+// Plays a RAW (16-bit signed) PCM audio file at slower or faster rate
+// this example requires an uSD-card inserted to teensy 3.6 with a file called DEMO.RAW
+#include <Arduino.h>
+#include <Audio.h>
+#include <LittleFS.h>
+#include <TeensyVariablePlayback.h>
+
+LittleFS_Program         myfs;
+#define PROG_FLASH_SIZE 1024 * 1024 * 1 // Specify size to use of onboard Teensy Program Flash chip
+
+// GUItool: begin automatically generated code
+AudioPlayLfsResmp        playLfsRaw1(myfs);     //xy=324,457
+AudioOutputI2S           i2s2;                  //xy=840.8571472167969,445.5714416503906
+AudioConnection          patchCord1(playLfsRaw1, 0, i2s2, 0);
+AudioConnection          patchCord2(playLfsRaw1, 0, i2s2, 1);
+AudioControlSGTL5000     audioShield;
+// GUItool: end automatically generated code
+
+#define A14 10
+
+const char* _filename = "DEMO.RAW";
+const int analogInPin = A14;
+unsigned long lastSamplePlayed = 0;
+uint32_t diskSize;
+
+double getPlaybackRate(int16_t analog) { //analog: 0..1023
+    return  (analog - 512.0) / 512.0;
+}
+
+void setup() {
+    analogReference(0);
+    pinMode(analogInPin, INPUT_DISABLE);   // i.e. Analog
+
+    // see if the Flash is present and can be initialized:
+    // lets check to see if the T4 is setup for security first
+    #if ARDUINO_TEENSY40
+    if ((IOMUXC_GPR_GPR11 & 0x100) == 0x100) {
+        //if security is active max disk size is 960x1024
+        if (PROG_FLASH_SIZE > 960 * 1024) {
+        diskSize = 960 * 1024;
+        Serial.printf("Security Enables defaulted to %u bytes\n", diskSize);
+        } else {
+        diskSize = PROG_FLASH_SIZE;
+        Serial.printf("Security Not Enabled using %u bytes\n", diskSize);
+        }
+    }
+    #else
+    diskSize = PROG_FLASH_SIZE;
+    #endif
+
+    // checks that the LittFS program has started with the disk size specified
+    if (!myfs.begin(diskSize)) {
+        Serial.printf("Error starting %s\n", "PROGRAM FLASH DISK");
+        while (1) {
+        // Error, so don't do anything more - stay stuck here
+        }
+    }
+    Serial.println("LittleFS initialized.");
+
+    audioShield.enable();
+    audioShield.volume(0.5);
+
+    playLfsRaw1.enableInterpolation(true);
+    int newsensorValue = analogRead(analogInPin);
+    playLfsRaw1.setPlaybackRate(getPlaybackRate(newsensorValue));
+
+    AudioMemory(24);
+}
+
+void loop() {
+
+    int newsensorValue = analogRead(analogInPin);
+    playLfsRaw1.setPlaybackRate(getPlaybackRate(newsensorValue));
+    
+    unsigned currentMillis = millis();
+    if (currentMillis > lastSamplePlayed + 500) {
+        if (!playLfsRaw1.isPlaying()) {
+            playLfsRaw1.playRaw(_filename, 1);
+            lastSamplePlayed = currentMillis;
+
+            Serial.print("Memory: ");
+            Serial.print(AudioMemoryUsage());
+            Serial.print(",");
+            Serial.print(AudioMemoryUsageMax());
+            Serial.println();
+        }
+    }
+    delay(10);
+}
+
+
+namespace std {
+    void __throw_bad_function_call() {}
+    void __throw_length_error(char const*) {}
+}

third-party/TeensyVariablePlayback/examples/SerialFlash/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.10)
+project(serialflash_raw)
+set(CMAKE_CXX_STANDARD 14)
+add_definitions(-DPROG_FLASH_SIZE=10000)
+teensy_include_directories(../../src)
+teensy_add_executable(serialflash serialflash.ino)
+teensy_target_link_libraries(serialflash teensy_variable_playback Audio  SerialFlash SPI cores Wire arm_math)

third-party/TeensyVariablePlayback/examples/SerialFlash/serialflash.ino

@@ -0,0 +1,79 @@
+// Plays a RAW (16-bit signed) PCM audio file at slower or faster rate
+// this example requires an uSD-card inserted to teensy 3.6 with a file called DEMO.RAW
+#include <Arduino.h>
+#include <Audio.h>
+#include <SerialFlash.h>
+#include <TeensyVariablePlayback.h>
+
+#define CSPIN              6
+
+SerialFlashChip         myfs;
+
+// GUItool: begin automatically generated code
+AudioPlaySerialFlashResmp        playSerialFlash1(myfs);     //xy=324,457
+AudioOutputI2S           i2s2;                  //xy=840.8571472167969,445.5714416503906
+AudioConnection          patchCord1(playSerialFlash1, 0, i2s2, 0);
+AudioConnection          patchCord2(playSerialFlash1, 0, i2s2, 1);
+AudioControlSGTL5000     audioShield;
+// GUItool: end automatically generated code
+
+#define A14 10
+
+const char* _filename = "DEMO.RAW";
+const int analogInPin = A14;
+unsigned long lastSamplePlayed = 0;
+uint32_t diskSize;
+
+double getPlaybackRate(int16_t analog) { //analog: 0..1023
+    return  (analog - 512.0) / 512.0;
+}
+
+void setup() {
+    analogReference(0);
+    pinMode(analogInPin, INPUT_DISABLE);   // i.e. Analog
+
+
+    if (!SerialFlash.begin(CSPIN)) {
+        while (1) {
+        Serial.println(F("Unable to access SPI Flash chip"));
+        delay(1000);
+        }
+    }
+    Serial.println("SerialFlash initialized.");
+
+    audioShield.enable();
+    audioShield.volume(0.5);
+
+    playSerialFlash1.enableInterpolation(true);
+    int newsensorValue = analogRead(analogInPin);
+    playSerialFlash1.setPlaybackRate(getPlaybackRate(newsensorValue));
+
+    AudioMemory(24);
+}
+
+void loop() {
+
+    int newsensorValue = analogRead(analogInPin);
+    playSerialFlash1.setPlaybackRate(getPlaybackRate(newsensorValue));
+    
+    unsigned currentMillis = millis();
+    if (currentMillis > lastSamplePlayed + 500) {
+        if (!playSerialFlash1.isPlaying()) {
+            playSerialFlash1.playRaw(_filename, 1);
+            lastSamplePlayed = currentMillis;
+
+            Serial.print("Memory: ");
+            Serial.print(AudioMemoryUsage());
+            Serial.print(",");
+            Serial.print(AudioMemoryUsageMax());
+            Serial.println();
+        }
+    }
+    delay(10);
+}
+
+
+namespace std {
+    void __throw_bad_function_call() {}
+    void __throw_length_error(char const*) {}
+}

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

@@ -133,6 +133,7 @@ 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();
   }
@@ -143,4 +144,4 @@ void populateFilenames(char *directory, char **filenames) {
 namespace std {
     void __throw_bad_function_call() {}
     void __throw_length_error(char const*) {}
-}
+}

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": "1.0.11",
+    "version": "1.0.14",
     "export": {
       "exclude": [
         ".vscode",
@@ -26,11 +26,10 @@
       "type": "git",
       "url": "https://github.com/newdigate/teensy-variable-playback"
     },
-    "dependencies":
+    "dependencies":[{
-    {
+        "name": "Audio",
-      "name": "Audio",
+        "frameworks": "arduino"
-      "frameworks": "arduino"
+    }],
-    },
     "examples": [
       "examples/*/*.ino",
       "examples/*/*/*.ino"

third-party/TeensyVariablePlayback/library.properties

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

third-party/TeensyVariablePlayback/src/CMakeLists.txt

@@ -3,12 +3,8 @@ 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
@@ -17,10 +13,19 @@ set(HEADER_FILES
         ResamplingSdReader.h
         waveheaderparser.h
         ResamplingArrayReader.h
+        ResamplingReader.h
         playarrayresmp.h
         interpolation.h
         TeensyVariablePlayback.h
-        IndexableFile.h)
+        IndexableFile.h
+        IndexableSerialFlashFile.h
+        IndexableLittleFSFile.h
+        IndexableSDFile.h
+        ResamplingLfsReader.h
+        ResamplingSerialFlashReader.h
+        playlfsresmp.h
+        playserialflashresmp.h
+        )
 
 #set(CMAKE_VERBOSE_MAKEFILE 1)
 if (NOT DEFINED TEENSY_VERSION)

third-party/TeensyVariablePlayback/src/IndexableFile.h

@@ -18,19 +18,24 @@ constexpr bool isPowerOf2(size_t value){
     return !(value == 0) && !(value & (value - 1));
 }
 
-template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS> // BUFFER_SIZE needs to be a power of two
+template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS, class TFile> // 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(File file) : 
+    IndexableFile(const char *filename) : 
         _buffers(),
-        buffer_to_index_shift(log2(BUFFER_SIZE)) {
+        buffer_to_index_shift(log2(BUFFER_SIZE)) 
-    	    _file = file;
+    {
+            _filename = new char[strlen(filename)+1] {0};
+            memcpy(_filename, filename, strlen(filename));
     }
-    ~IndexableFile() {
+    
+    virtual ~IndexableFile() {
         close();
     }
 
@@ -49,12 +54,14 @@ 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);
-            __enable_irq();
+            #ifndef TEENSYDUINO
-            
+            if (!_file.available()){  
+                _file.close();
+                _file = open(_filename);
+            }
+            #endif
             next->buffer_size = bytesRead;
             _buffers.push_back(next);
             match = next;
@@ -63,20 +70,25 @@ public:
     }
 
     void close() {
-	    if (_file.available()) {
+        if (_file.available()) {
-            __disable_irq();
             _file.close();
-            __enable_irq();
         }
 
-        for (auto && x : _buffers){
+       for (auto && x : _buffers){
             delete [] x->buffer;
             delete x;
         }
         _buffers.clear();
+
+        if (_filename != nullptr) {
+            delete [] _filename;
+            _filename = nullptr;
+        }    
     }
-private:
+
-    File _file;
+protected:
+    TFile _file;
+    char *_filename;
     std::vector<indexedbuffer*> _buffers;
 
     indexedbuffer* find_with_index(uint32_t i) {
@@ -91,4 +103,6 @@ private:
 
 }
 
+
+
 #endif 

third-party/TeensyVariablePlayback/src/IndexableLittleFSFile.h

@@ -0,0 +1,43 @@
+#ifndef TEENSY_RESAMPLING_INDEXABLELITTLEFS_FILE_H
+#define TEENSY_RESAMPLING_INDEXABLELITTLEFS_FILE_H
+
+#include <Arduino.h>
+#include "IndexableFile.h"
+#include <LittleFS.h>
+#include <vector>
+
+namespace newdigate {
+
+template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS> // BUFFER_SIZE needs to be a power of two
+class IndexableLittleFSFile : public IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS, File> {
+public:
+    static_assert(isPowerOf2(BUFFER_SIZE), "BUFFER_SIZE must be a power of 2");
+
+    IndexableLittleFSFile(LittleFS &fs, const char *filename) : 
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS, File>(filename),
+        _myFS(fs) 
+    {
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>::_file = _myFS.open(filename);
+    }
+    
+    File open(const char *filename) override {
+        return _myFS.open(filename);
+    }
+
+    virtual ~IndexableLittleFSFile() {
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>::close();
+    }
+
+    int16_t &operator[](int i) {
+        return IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>::operator[](i);
+    }
+
+private:
+    LittleFS &_myFS;
+};
+
+}
+
+
+
+#endif //TEENSY_RESAMPLING_INDEXABLELITTLEFS_FILE_H

third-party/TeensyVariablePlayback/src/IndexableSDFile.h

@@ -0,0 +1,38 @@
+#ifndef TEENSY_RESAMPLING_INDEXABLESD_FILE_H
+#define TEENSY_RESAMPLING_INDEXABLESD_FILE_H
+
+#include <Arduino.h>
+#include "IndexableFile.h"
+#include <SD.h>
+#include <vector>
+
+namespace newdigate {
+
+template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS> // BUFFER_SIZE needs to be a power of two
+class IndexableSDFile : public IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File> {
+public:
+    static_assert(isPowerOf2(BUFFER_SIZE), "BUFFER_SIZE must be a power of 2");
+
+    IndexableSDFile(const char *filename) : 
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>(filename) {
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>::_file = open(filename);
+    }
+    
+    File open(const char *filename) override {
+        return SD.open(filename);
+    }
+
+    virtual ~IndexableSDFile() {
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>::close();
+    }
+
+    int16_t &operator[](int i) {
+        return IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,File>::operator[](i);
+    }
+};
+
+}
+
+
+
+#endif 

third-party/TeensyVariablePlayback/src/IndexableSerialFlashFile.h

@@ -0,0 +1,43 @@
+#ifndef TEENSY_RESAMPLING_INDEXABLESERIALFLASH_FILE_H
+#define TEENSY_RESAMPLING_INDEXABLESERIALFLASH_FILE_H
+
+#include <Arduino.h>
+#include "IndexableFile.h"
+#include <SerialFlash.h>
+#include <vector>
+
+namespace newdigate {
+
+template<size_t BUFFER_SIZE, size_t MAX_NUM_BUFFERS> // BUFFER_SIZE needs to be a power of two
+class IndexableSerialFlashFile : public IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,SerialFlashFile> {
+public:
+    static_assert(isPowerOf2(BUFFER_SIZE), "BUFFER_SIZE must be a power of 2");
+
+    IndexableSerialFlashFile(SerialFlashChip &fs, const char *filename) : 
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,SerialFlashFile>(filename),
+        _myFS(fs) 
+    {
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,SerialFlashFile>::_file = _myFS.open(filename);
+    }
+    
+    SerialFlashFile open(const char *filename) override {
+        return _myFS.open(filename);
+    }
+
+    virtual ~IndexableSerialFlashFile() {
+        IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,SerialFlashFile>::close();
+    }
+
+    int16_t &operator[](int i) {
+        return IndexableFile<BUFFER_SIZE, MAX_NUM_BUFFERS,SerialFlashFile>::operator[](i);
+    }
+
+private:
+    SerialFlashChip &_myFS;
+};
+
+}
+
+
+
+#endif //TEENSY_RESAMPLING_INDEXABLESERIALFLASH_FILE_H

third-party/TeensyVariablePlayback/src/ResamplingArrayReader.h

@@ -6,115 +6,44 @@
 #include <cstdint>
 #include "loop_type.h"
 #include "interpolation.h"
+#include "ResamplingReader.h"
 
-class ResamplingArrayReader {
+namespace newdigate {
-public:
-    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();
-    }
 
-    void setLoopType(loop_type loopType)
+class ResamplingArrayReader : public ResamplingReader<int16_t, File> {
-    {
+public:
-        _loopType = loopType;
+    ResamplingArrayReader() :
-    }
+        ResamplingReader() {
-
+    }    
-    loop_type getLoopType(){
+    
-        return _loopType;    
+    virtual ~ResamplingArrayReader() {
-    }
-
-    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) {
+    int16_t getSourceBufferValue(long index) override {
-        // sample number, (NOT byte number)
+        return _sourceBuffer[index];
-        _loop_finish = _header_offset + (loop_finish * _numChannels);
     }
 
-    void setInterpolationType(ResampleInterpolationType interpolationType) {
+    int available(void) {
-        if (interpolationType != _interpolationType) {
+        return _playing;
-            _interpolationType = interpolationType;
-            initializeInterpolationPoints();
-        }
     }
 
-    int16_t getNumChannels() {
+    int16_t* createSourceBuffer() override {
-        return _numChannels;
+        return _sourceBuffer;
     }
 
-    void setNumChannels(uint16_t numChannels) {
+    void close(void) override {
-        if (numChannels != _numChannels) {
+        if (_playing) {
-            _numChannels = numChannels;
+            stop();
-            initializeInterpolationPoints();
+            deleteInterpolationPoints();
         }
     }
 
-    void setHeaderSizeInBytes(uint32_t headerSizeInBytes) {
+    File open(char *filename) override {
-        _header_offset = headerSizeInBytes / 2;
+        return File();
-        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/ResamplingLfsReader.h

@@ -0,0 +1,78 @@
+//
+// Created by Nicholas Newdigate on 10/02/2019.
+//
+
+#ifndef TEENSYAUDIOLIBRARY_RESAMPLINGLFSREADER_H
+#define TEENSYAUDIOLIBRARY_RESAMPLINGLFSREADER_H
+
+#include <cstdint>
+#include "IndexableLittleFSFile.h"
+#include "ResamplingReader.h"
+#include "LittleFS.h"
+
+#define RESAMPLE_BUFFER_SAMPLE_SIZE 128
+
+#define B2M (uint32_t)((double)4294967296000.0 / AUDIO_SAMPLE_RATE_EXACT / 2.0) // 97352592
+
+namespace newdigate {
+
+class ResamplingLfsReader : public ResamplingReader< IndexableLittleFSFile<128, 2>, File > {
+public:
+    ResamplingLfsReader(LittleFS &fs) : 
+        ResamplingReader(),
+        _myFS(fs) 
+    {
+    }
+    virtual ~ResamplingLfsReader() {
+    }
+
+    int16_t getSourceBufferValue(long index) override {
+        return (*_sourceBuffer)[index];
+    }
+
+    int available(void)
+    {
+        return _playing;
+    }
+
+    File open(char *filename) override {
+        return _myFS.open(filename);
+    }
+
+    void close(void) override
+    {
+        if (_playing)
+            stop();
+        if (_sourceBuffer != nullptr) {
+            _sourceBuffer->close();
+            delete _sourceBuffer;
+            _sourceBuffer = nullptr;
+        }
+        if (_filename != nullptr) {
+            delete [] _filename;
+            _filename = nullptr;
+        }
+        deleteInterpolationPoints();
+    }
+
+    IndexableLittleFSFile<128, 2>* createSourceBuffer() override {
+        return new IndexableLittleFSFile<128, 2>(_myFS, _filename);
+    }
+
+    uint32_t positionMillis(void) {
+        if (_file_size == 0) return 0;
+
+        return (uint32_t) (( (double)_bufferPosition * lengthMillis() ) / (double)(_file_size/2));
+    }
+
+    uint32_t lengthMillis(void) {
+        return ((uint64_t)_file_size * B2M) >> 32;
+    }
+    
+protected:    
+    LittleFS &_myFS;
+};
+
+}
+
+#endif //TEENSYAUDIOLIBRARY_RESAMPLINGLFSREADER_H

third-party/TeensyVariablePlayback/src/ResamplingReader.h

@@ -0,0 +1,500 @@
+#ifndef TEENSYAUDIOLIBRARY_RESAMPLINGREADER_H
+#define TEENSYAUDIOLIBRARY_RESAMPLINGREADER_H
+
+#include <Arduino.h>
+#include <cstdint>
+#include "loop_type.h"
+#include "interpolation.h"
+#include "waveheaderparser.h"
+
+namespace newdigate {
+
+template<class TArray, class TFile>
+class ResamplingReader {
+public:
+    ResamplingReader() {
+    }
+    virtual ~ResamplingReader() {       
+    }
+
+    virtual TFile open(char *filename) = 0;
+    virtual TArray* createSourceBuffer() = 0;
+    virtual int16_t getSourceBufferValue(long index) = 0;
+    virtual void close(void) = 0;
+
+    void begin(void) 
+    {
+        if (_interpolationType != ResampleInterpolationType::resampleinterpolation_none) {
+            initializeInterpolationPoints();
+        }
+        _playing = false;
+        _bufferPosition = _header_offset;
+        _file_size = 0;
+    }
+
+    bool playRaw(TArray *array, uint32_t length, uint16_t numChannels)
+    {
+        _sourceBuffer = array;
+        stop();
+
+        _header_offset = 0;
+        _file_size = length * 2;
+        _loop_start = 0;
+        _loop_finish = length;
+        setNumChannels(numChannels);
+
+        reset();
+        _playing = true;
+        return true;
+    }
+
+    bool playRaw(TArray *array, uint16_t numChannels) {
+        return playRaw(array, false, numChannels); 
+    }
+
+    bool playWav(TArray *array, uint32_t length) {
+        return playRaw(array, true); 
+    }
+
+    bool play(const char *filename, bool isWave, uint16_t numChannelsIfRaw = 0)
+    {
+        close();
+
+        if (!isWave) // if raw file, then hardcode the numChannels as per the parameter
+            setNumChannels(numChannelsIfRaw);
+
+        _filename = new char[strlen(filename)+1] {0};
+        memcpy(_filename, filename, strlen(filename) + 1);
+
+        TFile file = open(_filename);
+        if (!file) {
+            Serial.printf("Not able to open file: %s\n", _filename);
+            if (_filename) delete [] _filename;
+            _filename = nullptr;
+            return false;
+        }
+
+        _file_size = file.size();
+        if (isWave) {
+            wav_header wav_header;
+            wav_data_header data_header;
+
+            WaveHeaderParser wavHeaderParser;
+            char buffer[36];
+            size_t bytesRead = file.read(buffer, 36);
+            
+            wavHeaderParser.readWaveHeaderFromBuffer((const char *) buffer, wav_header);
+            if (wav_header.bit_depth != 16) {
+                Serial.printf("Needs 16 bit audio! Aborting.... (got %d)", wav_header.bit_depth);
+                return false;
+            }
+            setNumChannels(wav_header.num_channels);
+            
+            bytesRead = file.read(buffer, 8);
+            unsigned infoTagsSize;
+            if (!wavHeaderParser.readInfoTags((unsigned char *)buffer, 0, infoTagsSize))
+            {
+                Serial.println("Not able to read header! Aborting...");
+                return false;
+            }
+
+            file.seek(36 + infoTagsSize);
+            bytesRead = file.read(buffer, 8);
+
+            if (!wavHeaderParser.readDataHeader((unsigned char *)buffer, 0, data_header)) {
+                Serial.println("Not able to read header! Aborting...");
+                return false;
+            }
+
+            _header_offset = (44 + infoTagsSize) / 2;
+            _loop_finish = ((data_header.data_bytes) / 2) + _header_offset; 
+        } else 
+            _loop_finish = _file_size / 2;
+        
+        file.close();
+
+        if (_file_size <= _header_offset * sizeof(int16_t)) {
+            _playing = false;
+            if (_filename) delete [] _filename;
+            _filename =  nullptr;
+            Serial.printf("Wave file contains no samples: %s\n", filename);
+            return false;
+        }
+
+        _sourceBuffer = createSourceBuffer();
+        _loop_start = _header_offset;
+
+        reset();
+        _playing = true;
+        return true;
+    }
+
+    bool playRaw(const char *filename, uint16_t numChannelsIfRaw){
+        return play(filename, false, numChannelsIfRaw);
+    }
+    
+    bool playWav(const char *filename){
+        return play(filename, true);
+    }
+
+    bool play()
+    {
+        stop();
+        reset();
+        _playing = true;
+        return true;
+    }
+
+    void stop(void)
+    {
+        if (_playing) {   
+            _playing = false;
+        }
+    }           
+
+    bool isPlaying(void) { return _playing; }
+
+    unsigned int read(void **buf, uint16_t nsamples) {
+        if (!_playing) return 0;
+
+        int16_t *index[_numChannels];
+        unsigned int count = 0;
+        for (int channel=0; channel < _numChannels; channel++) {
+            index[channel] = (int16_t*)buf[channel];
+        }
+
+        while (count < nsamples) {
+            for (int channel=0; channel < _numChannels; channel++) {
+                if (readNextValue(index[channel], channel)) {
+                    if (channel == _numChannels - 1)
+                        count++;
+                    index[channel]++;
+                }
+                else {
+                    // we have reached the end of the file
+
+                    switch (_loopType) {
+                        case looptype_repeat:
+                        {
+                            if (_playbackRate >= 0.0) 
+                                _bufferPosition = _loop_start;
+                            else
+                                _bufferPosition = _loop_finish - _numChannels;
+
+                            break;
+                        }
+
+                        case looptype_pingpong:
+                        {
+                            if (_playbackRate >= 0.0) {
+                                _bufferPosition = _loop_finish - _numChannels;
+                                //printf("switching to reverse playback...\n");
+                            }
+                            else {
+                                _bufferPosition = _header_offset;
+                                //printf("switching to forward playback...\n");
+                            }
+                            _playbackRate = -_playbackRate;
+                            break;
+                        }            
+
+                        case looptype_none:            
+                        default:
+                        {
+                            //Serial.printf("end of loop...\n");
+                            /* no looping - return the number of (resampled) bytes returned... */
+                            close();
+                            return count;
+                        }
+                    }   
+                }
+            }
+        }
+        return count;
+    }
+
+    // read the sample value for given channel and store it at the location pointed to by the pointer 'value'
+    bool readNextValue(int16_t *value, uint16_t channel) {
+        if (_playbackRate >= 0 ) {
+            //forward playback
+            if (_bufferPosition >=  _loop_finish )
+                return false;
+
+        } else if (_playbackRate < 0) {
+            // reverse playback    
+            if (_bufferPosition < _header_offset)
+                return false;
+        }
+
+
+        int16_t result = getSourceBufferValue(_bufferPosition + channel);
+        if (_interpolationType == ResampleInterpolationType::resampleinterpolation_linear) {
+
+            double abs_remainder = abs(_remainder);
+            if (abs_remainder > 0.0) {
+
+                if (_playbackRate > 0) {
+                    if (_remainder - _playbackRate < 0.0){
+                        // we crossed over a whole number, make sure we update the samples for interpolation
+
+                        if (_playbackRate > 1.0) {
+                            // need to update last sample
+                            _interpolationPoints[channel][1].y = getSourceBufferValue(_bufferPosition-_numChannels);
+                        }
+
+                        _interpolationPoints[channel][0].y = _interpolationPoints[channel][1].y;
+                        _interpolationPoints[channel][1].y = result;
+                        if (_numInterpolationPoints < 2)
+                            _numInterpolationPoints++;
+                    }
+                } 
+                else if (_playbackRate < 0) {
+                    if (_remainder - _playbackRate > 0.0){
+                        // we crossed over a whole number, make sure we update the samples for interpolation
+
+                        if (_playbackRate < -1.0) {
+                            // need to update last sample
+                            _interpolationPoints[channel][1].y = getSourceBufferValue(_bufferPosition+_numChannels);
+                        }
+
+                        _interpolationPoints[channel][0].y = _interpolationPoints[channel][1].y;
+                        _interpolationPoints[channel][1].y = result;
+                        if (_numInterpolationPoints < 2)
+                            _numInterpolationPoints++;
+                    }
+                }
+
+                if (_numInterpolationPoints > 1) {
+                    result = abs_remainder * _interpolationPoints[channel][1].y + (1.0 - abs_remainder) * _interpolationPoints[channel][0].y;
+                    //Serial.printf("[%f]\n", interpolation);
+                }
+            } else {
+                _interpolationPoints[channel][0].y = _interpolationPoints[channel][1].y;
+                _interpolationPoints[channel][1].y = result;
+                if (_numInterpolationPoints < 2)
+                    _numInterpolationPoints++;
+
+                result =_interpolationPoints[channel][0].y;
+                //Serial.printf("%f\n", result);
+            }
+        } 
+        else if (_interpolationType == ResampleInterpolationType::resampleinterpolation_quadratic) {
+            double abs_remainder = abs(_remainder);
+            if (abs_remainder > 0.0) {
+                if (_playbackRate > 0) {                
+                    if (_remainder - _playbackRate < 0.0){
+                        // we crossed over a whole number, make sure we update the samples for interpolation
+                        int numberOfSamplesToUpdate = - floor(_remainder - _playbackRate);
+                        if (numberOfSamplesToUpdate > 4) 
+                            numberOfSamplesToUpdate = 4; // if playbackrate > 4, only need to pop last 4 samples
+                        for (int i=numberOfSamplesToUpdate; i > 0; i--) {
+                            _interpolationPoints[channel][0].y = _interpolationPoints[channel][1].y;
+                            _interpolationPoints[channel][1].y = _interpolationPoints[channel][2].y;
+                            _interpolationPoints[channel][2].y = _interpolationPoints[channel][3].y;
+                            _interpolationPoints[channel][3].y =  getSourceBufferValue(_bufferPosition-(i*_numChannels)+1+channel);
+                            if (_numInterpolationPoints < 4) _numInterpolationPoints++;
+                        }
+                    }
+                } 
+                else if (_playbackRate < 0) {                
+                    if (_remainder - _playbackRate > 0.0){
+                        // we crossed over a whole number, make sure we update the samples for interpolation
+                        int numberOfSamplesToUpdate =  ceil(_remainder - _playbackRate);
+                        if (numberOfSamplesToUpdate > 4) 
+                            numberOfSamplesToUpdate = 4; // if playbackrate > 4, only need to pop last 4 samples
+                        for (int i=numberOfSamplesToUpdate; i > 0; i--) {
+                            _interpolationPoints[channel][0].y = _interpolationPoints[channel][1].y;
+                            _interpolationPoints[channel][1].y = _interpolationPoints[channel][2].y;
+                            _interpolationPoints[channel][2].y = _interpolationPoints[channel][3].y;
+                            _interpolationPoints[channel][3].y =  getSourceBufferValue(_bufferPosition+(i*_numChannels)-1+channel);
+                            if (_numInterpolationPoints < 4) _numInterpolationPoints++;
+                        }
+                    }
+                }
+                
+                if (_numInterpolationPoints >= 4) {
+                    //int16_t interpolation = interpolate(_interpolationPoints, 1.0 + abs_remainder, 4);
+                    int16_t interpolation 
+                        = fastinterpolate(
+                            _interpolationPoints[channel][0].y, 
+                            _interpolationPoints[channel][1].y, 
+                            _interpolationPoints[channel][2].y, 
+                            _interpolationPoints[channel][3].y, 
+                            1.0 + abs_remainder); 
+                    result = interpolation;
+                    //Serial.printf("[%f]\n", interpolation);
+                } else 
+                    result = 0;
+            } else {
+                _interpolationPoints[channel][0].y = _interpolationPoints[channel][1].y;
+                _interpolationPoints[channel][1].y = _interpolationPoints[channel][2].y;
+                _interpolationPoints[channel][2].y = _interpolationPoints[channel][3].y;
+                _interpolationPoints[channel][3].y = result;
+                if (_numInterpolationPoints < 4) {
+                    _numInterpolationPoints++;
+                    result = 0;
+                } else 
+                    result = _interpolationPoints[channel][1].y;
+                //Serial.printf("%f\n", result);
+            }
+        }
+
+        if (channel == _numChannels - 1) {
+            _remainder += _playbackRate;
+
+            auto delta = static_cast<signed int>(_remainder);
+            _remainder -= static_cast<double>(delta);
+            _bufferPosition +=  (delta * _numChannels);
+        }
+
+        *value = result;
+        return true;
+    }
+
+    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) {
+        _loop_start = _bufferPosition;
+        _loop_finish = _bufferPosition + numSamples * _numChannels;
+        _loopType = loop_type::looptype_repeat;
+    }
+
+    void setLoopType(loop_type loopType)
+    {
+        _loopType = loopType;
+    }
+
+    loop_type getLoopType() {
+        return _loopType;    
+    }
+
+    int available(void) {
+        return _playing;
+    }
+
+    void reset(void) {
+        if (_interpolationType != ResampleInterpolationType::resampleinterpolation_none) {
+            initializeInterpolationPoints();
+        }
+        _numInterpolationPoints = 0;
+        if (_playbackRate > 0.0) {
+            // forward playabck - set _file_offset to first audio block in file
+            _bufferPosition = _header_offset;
+        } else {
+            // reverse playback - forward _file_offset to last audio block in file
+            _bufferPosition = _loop_finish - _numChannels;
+        }
+    }
+
+    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 getNumChannels() {
+        return _numChannels;
+    }
+
+    void setNumChannels(uint16_t numChannels) {
+        if (numChannels != _numChannels) {
+            _numChannels = numChannels;
+            initializeInterpolationPoints();
+        }
+    }
+
+    void setHeaderSizeInBytes(uint32_t headerSizeInBytes) {
+        _header_offset = headerSizeInBytes / 2;
+        if (_bufferPosition < _header_offset) {
+            if (_playbackRate >= 0) {
+                _bufferPosition = _header_offset;
+            } else
+                _bufferPosition = _loop_finish - _numChannels;
+        }
+    }
+    
+    #define B2M (uint32_t)((double)4294967296000.0 / AUDIO_SAMPLE_RATE_EXACT / 2.0) // 97352592
+    uint32_t positionMillis()
+    {
+        return ((uint64_t)_file_size * B2M) >> 32;
+    }
+
+    uint32_t lengthMillis()
+    {
+        return ((uint64_t)_file_size * B2M) >> 32;
+    }
+    
+protected:
+    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;
+    char *_filename = nullptr;
+    TArray *_sourceBuffer = nullptr;
+
+    ResampleInterpolationType _interpolationType = ResampleInterpolationType::resampleinterpolation_none;
+    unsigned int _numInterpolationPoints = 0;
+    InterpolationData **_interpolationPoints = nullptr;
+    
+    void initializeInterpolationPoints(void) {
+        if (_numChannels < 0)
+            return;
+            
+        deleteInterpolationPoints();
+        _interpolationPoints = new InterpolationData*[_numChannels];
+        for (int channel=0; channel < _numChannels; channel++) {        
+            InterpolationData *interpolation = new InterpolationData[4];
+            interpolation[0].y = 0.0;
+            interpolation[1].y = 0.0;    
+            interpolation[2].y = 0.0;    
+            interpolation[3].y = 0.0;
+            _interpolationPoints[channel] = interpolation ;
+        }
+        _numInterpolationPointsChannels = _numChannels;
+    }
+
+    void deleteInterpolationPoints(void)
+    {
+        if (!_interpolationPoints) return;
+        for (int i=0; i<_numInterpolationPointsChannels; i++) {
+            delete [] _interpolationPoints[i];
+        }
+        delete [] _interpolationPoints;
+        _interpolationPoints = nullptr;
+        _numInterpolationPointsChannels = 0;
+    }
+
+};
+
+}
+
+#endif //TEENSYAUDIOLIBRARY_RESAMPLINGREADER_H

third-party/TeensyVariablePlayback/src/ResamplingSdReader.h

@@ -10,143 +10,72 @@
 #include "spi_interrupt.h"
 #include "loop_type.h"
 #include "interpolation.h"
-#include "IndexableFile.h"
+#include "IndexableSDFile.h"
+#include "ResamplingReader.h"
 
 #define RESAMPLE_BUFFER_SAMPLE_SIZE 128
 
 #define B2M (uint32_t)((double)4294967296000.0 / AUDIO_SAMPLE_RATE_EXACT / 2.0) // 97352592
 
-class ResamplingSdReader {
+namespace newdigate {
+
+class ResamplingSdReader : public ResamplingReader< IndexableSDFile<128, 2>, File > {
 public:
-    ResamplingSdReader() {
+    ResamplingSdReader() : 
+        ResamplingReader() 
+    {
     }
-
+    
-    void begin(void);
+    virtual ~ResamplingSdReader() {
-    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;
-        }
     }
 
-    double playbackRate() {
+    int16_t getSourceBufferValue(long index) override {
-        return _playbackRate;
+        return (*_sourceBuffer)[index];
     }
 
-    void setLoopType(loop_type loopType)
+    int available(void)
     {
-        _loopType = loopType;
+        return _playing;
     }
 
-    loop_type getLoopType(){
+    File open(char *filename) override {
-        return _loopType;    
+        return SD.open(filename);
     }
 
-    int available(void);
+    void close(void) override
-    void reset(void);
+    {
-    void close(void);
+        if (_playing)
-
+            stop();
-    void setLoopStart(uint32_t loop_start) {
+        if (_sourceBuffer != nullptr) {
-        _loop_start = _header_offset + (loop_start * _numChannels);
+            _sourceBuffer->close();
-    }
+            delete _sourceBuffer;
-
+            _sourceBuffer = nullptr;
-    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();
         }
-    }
+        if (_filename != nullptr) {
-
+            delete [] _filename;
-    int16_t getNumChannels() {
+            _filename = nullptr;
-        return _numChannels;
-    }
-
-    void setNumChannels(uint16_t numChannels) {
-        if (numChannels != _numChannels) {   
-            _numChannels = numChannels;
-            initializeInterpolationPoints();
         }
+        deleteInterpolationPoints();
     }
 
-    void setHeaderSize(uint32_t headerSizeInBytes) {
+    IndexableSDFile<128, 2>* createSourceBuffer() override {
-        _header_offset = headerSizeInBytes / 2;
+        return new IndexableSDFile<128, 2>(_filename);
-        if (_bufferPosition < _header_offset) {
-            if (_playbackRate >= 0) {
-                _bufferPosition = _header_offset;
-            }
-        }
     }
 
     uint32_t positionMillis(void) {
-        return ((uint64_t) _file_size * B2M) >> 32;
+        if (_file_size == 0) return 0;
-    }
 
-    uint32_t lengthMillis(void) {
+        return (uint32_t) (( (double)_bufferPosition * lengthMillis() ) / (double)(_file_size/2));
-        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
-        }
     }
 
-    void StopUsingSPI() {
+    uint32_t lengthMillis(void) {
-        if (isUsingSPI) {
+        return ((uint64_t)_file_size * B2M) >> 32;
-            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);
+protected:    
-    void initializeInterpolationPoints(void);
+     
-    void deleteInterpolationPoints(void);
 };
 
+}
 
 #endif //TEENSYAUDIOLIBRARY_RESAMPLINGSDREADER_H

third-party/TeensyVariablePlayback/src/ResamplingSerialFlashReader.h

@@ -0,0 +1,82 @@
+//
+// Created by Nicholas Newdigate on 10/02/2019.
+//
+
+#ifndef TEENSYAUDIOLIBRARY_RESAMPLINGSERIALFLASHREADER_H
+#define TEENSYAUDIOLIBRARY_RESAMPLINGSERIALFLASHREADER_H
+
+#include <cstdint>
+#include "spi_interrupt.h"
+#include "loop_type.h"
+#include "interpolation.h"
+#include "IndexableSerialFlashFile.h"
+#include "ResamplingReader.h"
+#include "SerialFlash.h"
+
+#define RESAMPLE_BUFFER_SAMPLE_SIZE 128
+
+#define B2M (uint32_t)((double)4294967296000.0 / AUDIO_SAMPLE_RATE_EXACT / 2.0) // 97352592
+
+namespace newdigate {
+
+class ResamplingSerialFlashReader : public ResamplingReader< IndexableSerialFlashFile<128, 2>, SerialFlashFile > {
+public:
+    ResamplingSerialFlashReader(SerialFlashChip &fs) : 
+        ResamplingReader(),
+        _myFS(fs) 
+    {
+    }
+
+    virtual ~ResamplingSerialFlashReader() {
+    }
+
+    int16_t getSourceBufferValue(long index) override {
+        return (*_sourceBuffer)[index];
+    }
+
+    int available(void)
+    {
+        return _playing;
+    }
+
+    SerialFlashFile open(char *filename) override {
+        return _myFS.open(filename);
+    }
+
+    void close(void) override
+    {
+        if (_playing)
+            stop();
+        if (_sourceBuffer != nullptr) {
+            _sourceBuffer->close();
+            delete _sourceBuffer;
+            _sourceBuffer = nullptr;
+        }
+        if (_filename != nullptr) {
+            delete [] _filename;
+            _filename = nullptr;
+        }
+        deleteInterpolationPoints();
+    }
+
+    IndexableSerialFlashFile<128, 2>* createSourceBuffer() override {
+        return new IndexableSerialFlashFile<128, 2>(_myFS, _filename);
+    }
+
+    uint32_t positionMillis(void) {
+        if (_file_size == 0) return 0;
+
+        return (uint32_t) (( (double)_bufferPosition * lengthMillis() ) / (double)(_file_size/2));
+    }
+
+    uint32_t lengthMillis(void) {
+        return ((uint64_t)_file_size * B2M) >> 32;
+    }
+    
+protected:    
+    SerialFlashChip &_myFS;
+};
+
+}
+
+#endif //TEENSYAUDIOLIBRARY_RESAMPLINGSERIALFLASHREADER_H

third-party/TeensyVariablePlayback/src/TeensyVariablePlayback.h

@@ -8,7 +8,10 @@
 #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

@@ -11,61 +11,19 @@
 #include "ResamplingArrayReader.h"
 #include "playresmp.h"
 
-class AudioPlayArrayResmp : public AudioPlayResmp
+class AudioPlayArrayResmp : public AudioPlayResmp<newdigate::ResamplingArrayReader>
 {
 public:
     AudioPlayArrayResmp(void) :
-            AudioPlayResmp(),
+            AudioPlayResmp<newdigate::ResamplingArrayReader>()
-            arrayReader()
     {
+        reader = new newdigate::ResamplingArrayReader();
         begin();
     }
 
-    void begin(void);
+    virtual ~AudioPlayArrayResmp() {
-    bool playRaw(int16_t *data, uint32_t numSamples, uint16_t numChannels);
+        delete reader;
-    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/playlfsresmp.h

@@ -0,0 +1,26 @@
+//
+// Created by Nicholas Newdigate on 18/07/2020.
+//
+
+#ifndef TEENSY_RESAMPLING_SDREADER_PLAYLFSRAWRESMP_H
+#define TEENSY_RESAMPLING_SDREADER_PLAYLFSRAWRESMP_H
+
+#include "ResamplingLfsReader.h"
+
+class AudioPlayLfsResmp : public AudioPlayResmp<newdigate::ResamplingLfsReader>
+{
+public:
+    AudioPlayLfsResmp(LittleFS &fs) :
+            AudioPlayResmp<newdigate::ResamplingLfsReader>()
+    {
+        reader = new newdigate::ResamplingLfsReader(fs);
+        begin();
+    }
+
+    virtual ~AudioPlayLfsResmp() {
+        delete reader;
+    }
+};
+
+
+#endif //TEENSY_RESAMPLING_SDREADER_PLAYLFSRAWRESMP_H

third-party/TeensyVariablePlayback/src/playresmp.h

@@ -5,20 +5,135 @@
 #include "Audio.h"
 #include "loop_type.h"
 
+template <class TResamplingReader>
 class AudioPlayResmp : public AudioStream
 {
     public:
-        AudioPlayResmp(void): AudioStream(0, NULL) {}
+        AudioPlayResmp(): AudioStream(0, NULL), reader(nullptr)
-        virtual ~AudioPlayResmp() {}
+        {
-
+        }
-        virtual void setPlaybackRate(float f) = 0;
+
-        virtual void setLoopType(loop_type t) = 0;
+        virtual ~AudioPlayResmp() {
-        virtual void setLoopStart(uint32_t loop_start) = 0;
+        }
-        virtual void setLoopFinish(uint32_t loop_finish) = 0;
+
-        virtual void begin() = 0;
+        void begin(void)
-        virtual void enableInterpolation(bool enable) = 0;
+        {
-        virtual bool isPlaying(void) = 0;
+            reader->begin();
-        virtual void stop() = 0;
+        }
+
+        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 i, 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;
 };
 
 #endif // TEENSY_RESAMPLING_SDREADER_PLAYRESMP_H

third-party/TeensyVariablePlayback/src/playsdresmp.h

@@ -8,56 +8,24 @@
 
 #include "Arduino.h"
 #include "AudioStream.h"
+#include "SD.h"
 #include "stdint.h"
 #include "ResamplingSdReader.h"
 #include "playresmp.h"
 
-class AudioPlaySdResmp : public AudioPlayResmp
+class AudioPlaySdResmp : public AudioPlayResmp<newdigate::ResamplingSdReader>
 {
 public:
     AudioPlaySdResmp(void) :
-            AudioPlayResmp(),
+        AudioPlayResmp<newdigate::ResamplingSdReader>()
-            sdReader()
     {
+        reader = new newdigate::ResamplingSdReader();
         begin();
     }
 
-    void begin(void);
+    virtual ~AudioPlaySdResmp() {
-    bool playRaw(const char *filename, uint16_t numChannels);
+        delete reader;
-    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/playserialflashresmp.h

@@ -0,0 +1,31 @@
+//
+// Created by Nicholas Newdigate on 18/07/2020.
+//
+
+#ifndef TEENSY_RESAMPLING_SDREADER_PLAYSERIALFLASHRAWRESMP_H
+#define TEENSY_RESAMPLING_SDREADER_PLAYSERIALFLASHRAWRESMP_H
+
+#include "Arduino.h"
+#include "AudioStream.h"
+#include "SerialFlash.h"
+#include "stdint.h"
+#include "ResamplingSerialFlashReader.h"
+#include "playresmp.h"
+
+class AudioPlaySerialFlashResmp : public AudioPlayResmp<newdigate::ResamplingSerialFlashReader>
+{
+public:
+    AudioPlaySerialFlashResmp(SerialFlashChip &fs) :
+            AudioPlayResmp<newdigate::ResamplingSerialFlashReader>()
+    {
+        reader = new newdigate::ResamplingSerialFlashReader(fs);
+        begin();
+    }
+
+    virtual ~AudioPlaySerialFlashResmp() {
+        delete reader;
+    }
+};
+
+
+#endif //TEENSY_RESAMPLING_SDREADER_PLAYSERIALFLASHRAWRESMP_H

third-party/TeensyVariablePlayback/src/waveheaderparser.h

@@ -14,47 +14,70 @@ using namespace std;
 // from https://gist.github.com/Jon-Schneider/8b7c53d27a7a13346a643dac9c19d34f
 struct wav_header {
     // RIFF Header
-    char riff_header[4];    // 00 - 03 - Contains "RIFF"
+    char riff_header[4] = {0,0,0,0};    // 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
+    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];    // 08 - 11 - Contains "WAVE"
+    char wave_header[4] = {0,0,0,0};    // 08 - 11 - Contains "WAVE"
 
     // Format Header
-    char fmt_header[4];     // 12 - 15 - Contains "fmt " (includes trailing space)
+    char fmt_header[4] = {0,0,0,0};     // 12 - 15 - Contains "fmt " (includes trailing space)
-    int fmt_chunk_size;     // 16 - 19 - Should be 16 for PCM
+    int fmt_chunk_size = 0;     // 16 - 19 - Should be 16 for PCM
-    short audio_format;     // 20 - 21 - Should be 1 for PCM. 3 for IEEE Float
+    short audio_format = 0;     // 20 - 21 - Should be 1 for PCM. 3 for IEEE Float
-    short num_channels;     // 22 - 23
+    short num_channels = 0;     // 22 - 23
-    int sample_rate;        // 24 - 27
+    int sample_rate = 0;        // 24 - 27
-    int byte_rate;          // 28 - 31
+    int byte_rate = 0;          // 28 - 31
-    short sample_alignment; // 32 - 33
+    short sample_alignment = 0; // 32 - 33
-    short bit_depth;        // 34 - 35
+    short bit_depth  = 0;        // 34 - 35
+};
 
+struct wav_data_header {
     // Data
-    char data_header[4];    // 36 - 39
+    char data_header[4] = {0,0,0,0};    // 36 - 39
-    unsigned int data_bytes;// 40 - 43
+    unsigned int data_bytes = 0;// 40 - 43
 };
 
 class WaveHeaderParser {
 public:
-    bool readWaveHeader(const char *filename, wav_header &header, wav_header &wav_header) {
+    bool readWaveHeader(const char *filename, wav_header &header, wav_data_header &wav_data_header) {
-        __disable_irq();
         File wavFile = SD.open(filename);
-        __enable_irq();
         if (!wavFile) {
-            // Serial.printf("Not able to open wave file... %s\n", filename);
+            Serial.printf("Not able to open wave file... %s\n", filename);
             return false;
         }
-        bool result = readWaveHeader(header, wavFile);
+        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);
+                }
+            }
+        }
         wavFile.close();
         return result;
     }
 
-    bool readWaveHeader(wav_header &header, File wavFile) {
+    bool readWaveHeader(const char *filename, wav_header &header, File &wavFile) {
-        char buffer[44];
+        char buffer[36];
-        __disable_irq();
+        int bytesRead = wavFile.read(buffer, 36);
-        int bytesRead = wavFile.read(buffer, 44);
+        if (bytesRead != 36) {
-        __enable_irq();
+            Serial.printf("expected 36 bytes (was %d)\n", bytesRead);
-        if (bytesRead != 44) {
-            // Serial.printf("expected 44 bytes (was %d)\n", bytesRead);
             return false;
         }
         return readWaveHeaderFromBuffer(buffer, header);
@@ -62,7 +85,7 @@ public:
 
     bool readWaveHeaderFromBuffer(const char *buffer, wav_header &header) {
         if (buffer[0] != 'R' || buffer[1] != 'I' || buffer[2] != 'F' || buffer[3] != 'F') {
-            // Serial.printf("expected RIFF (was %s)\n", buffer);
+            Serial.printf("expected RIFF (was %s)\n", buffer);
             return false;
         }
         for (int i=0; i < 4; i++)
@@ -76,21 +99,21 @@ public:
         for (int i=0; i < 4; i++)
             header.wave_header[i] = buffer[i+8];
         if (buffer[8] != 'W' || buffer[9] != 'A' || buffer[10] != 'V' || buffer[11] != 'E') {
-            // Serial.printf("expected WAVE (was %s)\n", buffer[8]);
+            Serial.printf("expected WAVE (was %s)\n", buffer[8]);
             return false;
         }
 
         for (int i=0; i < 4; i++)
             header.fmt_header[i] = buffer[i+12];
         if (buffer[12] != 'f' || buffer[13] != 'm' || buffer[14] != 't' || buffer[15] != ' ') {
-            // Serial.printf("expected 'fmt ' (was %s)\n",  buffer[12]);
+            Serial.printf("expected 'fmt ' (was %s)\n",  buffer[12]);
             return false;
         }
 
         auto fmt_chunk_size = static_cast<unsigned long>(b[19] << 24 | b[18] << 16 | b[17] << 8 | b[16]);
         header.fmt_chunk_size = fmt_chunk_size;
         if (fmt_chunk_size != 16) {
-            // Serial.printf("chunk size should be 16 for PCM wave data... (was %d)\n", fmt_chunk_size);
+            Serial.printf("chunk size should be 16 for PCM wave data... (was %d)\n", fmt_chunk_size);
             return false;
         }
 
@@ -112,18 +135,45 @@ public:
         auto bit_depth = static_cast<unsigned long>(b[35] << 8 | b[34]);
         header.bit_depth = bit_depth;
 
-        for (int i=0; i < 4; i++)
+        return true;
-            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);
+    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') {
+            Serial.printf("expected data... (was %d)\n", buffer);
             return false;
         }
 
-        auto data_bytes = static_cast<unsigned long>(b[43] << 24 | b[42] << 16 | b[41] << 8 | b[40]);
+        auto data_bytes = static_cast<unsigned long>(buffer[offset+7] << 24 | buffer[offset+6] << 16 | buffer[offset+5] << 8 | buffer[offset+4]);
-        header.data_bytes = data_bytes;
+        data_header.data_bytes = data_bytes;
         return true;
     }
-
 private:
 };
 

third-party/TeensyVariablePlayback/test/CMakeLists.txt

@@ -57,6 +57,7 @@ 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

@@ -14,6 +14,11 @@ 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
@@ -25,10 +30,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
  
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -59,10 +64,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -94,10 +99,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());     
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
         memory.begin();           
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -129,10 +134,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -165,10 +170,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -200,10 +205,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();        
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);

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

@@ -14,6 +14,10 @@ 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
@@ -26,10 +30,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
-        
+
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -61,10 +65,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -97,10 +101,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());     
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
         memory.begin();           
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -133,10 +137,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -170,10 +174,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);
@@ -206,10 +210,10 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath+testName+".wav";
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         memory.begin();        
         memory.enableInterpolation(true);
         memory.setPlaybackRate(playbackRate);

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

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

@@ -11,6 +11,11 @@
 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
@@ -18,15 +23,15 @@ BOOST_AUTO_TEST_SUITE(test_audio_wav_mono_loop_forward_playback)
         TestAudioOutput          testout;       //xy=612,224
         AudioConnection          patchCord1(wave, 0, testout, 0);
         // GUItool: end automatically generated code
-
+        
         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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
-        testout.saveOutputFile(outputFile.c_str());
+
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         
         wave.begin();
         wave.enableInterpolation(true);
@@ -58,12 +63,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -95,12 +99,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());     
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
         wave.begin();           
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -132,12 +135,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -170,12 +172,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referencePath = "test/resources/reference/";
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -207,10 +208,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath + testName + ".wav";
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();        
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);

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

@@ -10,9 +10,12 @@
     
 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
@@ -25,11 +28,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
         
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -61,11 +64,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
     
         wave.begin();
         wave.enableInterpolation(true);
@@ -99,10 +102,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
-        const std::string referenceFileName = "test/resources/reference/"+testName+".wav";
+        const std::string referenceFileName = referencePath + testName + ".wav";
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());     
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());     
         wave.begin();           
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -135,11 +139,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -173,11 +177,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);
@@ -210,11 +214,11 @@ 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 = "output/" + outputFile;
+        const std::string outputFileName = outputPath + outputFile;
         const std::string referenceFileName = referencePath + testName + ".wav";
-        SD.setSDCardFolderPath(referencePath);
+        SD.setSDCardFolderPath(inputPath);
 
-        testout.saveOutputFile(outputFile.c_str());
+        testout.saveOutputFile(outputPath.c_str(), outputFile.c_str());
         wave.begin();        
         wave.enableInterpolation(true);
         wave.setPlaybackRate(playbackRate);

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

@@ -0,0 +1,118 @@
+//
+// Created by Nicholas Newdigate on 18/07/2020.
+//
+
+#ifndef TEENSY_AUDIO_SDWAV_STEREO_READERTESTS_CPP
+#define TEENSY_AUDIO_SDWAV_STEREO_READERTESTS_CPP
+
+#include <boost/test/unit_test.hpp>
+#include "AudioWavFixture.h"
+    
+BOOST_AUTO_TEST_SUITE(test_audio_wav_tags_in_header)
+
+    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(Wav_with_tags_in_header_1, AudioWavFixture) {
+
+        // GUItool: begin automatically generated code
+        AudioPlaySdResmp         wave;        //xy=306,225
+        TestAudioOutput          testout;       //xy=612,224
+        AudioConnection          patchCord1(wave, 0, testout, 0);
+        AudioConnection          patchCord2(wave, 1, testout, 1);
+        // GUItool: end automatically generated code
+
+        const double playbackRate = 1.0;
+        const std::string testName = "SDTEST1";
+        const std::string outputFile = testName+".wav";
+        const std::string outputFileName = outputPath + outputFile;
+        const std::string referenceFileName = referencePath + testName + ".wav";
+        SD.setSDCardFolderPath(inputPath);
+        
+        if (!testout.saveOutputFile(outputPath.c_str(), outputFile.c_str())) {
+            std::cout << "not able to save output file..." << std::endl;
+            BOOST_ERROR("not able to save output file (1)...");
+        }
+        wave.begin();
+        wave.enableInterpolation(true);
+        wave.setPlaybackRate(playbackRate);
+        bool isPlaying = wave.playWav(outputFile.c_str());
+        if (!isPlaying) {
+            std::cout << "input audio file is not able to play..." << std::endl;
+            BOOST_ERROR("input audio file is not able to play (1)...");
+        }
+        if (!wave.isPlaying()) {
+            std::cout << "input audio file is not able to play..." << std::endl;
+            BOOST_ERROR("input audio file is not able to play (2)...");
+        }
+
+        while (wave.isPlaying()) {
+            testout.isr();
+        }
+        testout.closeOutputfile(numberOfChannels);
+        patchCord1.disconnect();
+        AudioConnection::reset();
+        arduino_should_exit = true;
+        
+        std::cout << "comparing " << outputFileName << " with " << referenceFileName << ";" << std::endl;
+
+        std::ifstream ifs1(outputFileName);
+        std::ifstream ifs2(referenceFileName);
+        std::istream_iterator<char> b1(ifs1), e1;
+        std::istream_iterator<char> b2(ifs2), e2;
+
+        BOOST_CHECK_EQUAL_COLLECTIONS(b1, e1, b2, e2);
+    }
+    BOOST_FIXTURE_TEST_CASE(Wav_with_tags_in_header_2, AudioWavFixture) {
+
+        // GUItool: begin automatically generated code
+        AudioPlaySdResmp         wave;        //xy=306,225
+        TestAudioOutput          testout;       //xy=612,224
+        AudioConnection          patchCord1(wave, 0, testout, 0);
+        AudioConnection          patchCord2(wave, 1, testout, 1);
+        // GUItool: end automatically generated code
+
+        const double playbackRate = 1.0;
+        const std::string testName = "SDTEST2";
+        const std::string outputFile = testName+".wav";
+        const std::string outputFileName = outputPath + outputFile;
+        const std::string referenceFileName = referencePath + testName + ".wav";
+        SD.setSDCardFolderPath(inputPath);
+        
+        if (!testout.saveOutputFile(outputPath.c_str(), outputFile.c_str())) {
+            std::cout << "not able to save output file..." << std::endl;
+            BOOST_CHECK(false);
+            return;
+        }
+        wave.begin();
+        wave.enableInterpolation(true);
+        wave.setPlaybackRate(playbackRate);
+        wave.playWav(outputFile.c_str());
+
+        if (!wave.isPlaying()) {
+            std::cout << "input audio file is not able to play..." << std::endl;
+            BOOST_CHECK(false);
+            return;
+        }
+
+        while (wave.isPlaying()) {
+            testout.isr();
+        }
+        testout.closeOutputfile(numberOfChannels);
+        patchCord1.disconnect();
+        AudioConnection::reset();
+        arduino_should_exit = true;
+        
+        std::ifstream ifs1(outputFileName);
+        std::ifstream ifs2(referenceFileName);
+        std::istream_iterator<char> b1(ifs1), e1;
+        std::istream_iterator<char> b2(ifs2), e2;
+
+        BOOST_CHECK_EQUAL_COLLECTIONS(b1, e1, b2, e2);
+    }
+
+BOOST_AUTO_TEST_SUITE_END()
+
+#endif //TEENSY_AUDIO_SDWAV_STEREO_READERTESTS_CPP

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

@@ -10,14 +10,14 @@
 struct ResamplingArrayFixture {
 
     ResamplingArrayFixture()  {
-        resamplingArrayReader = new ResamplingArrayReader();
+        resamplingArrayReader = new newdigate::ResamplingArrayReader();
     }
 
     ~ResamplingArrayFixture() {
         delete resamplingArrayReader;
     }
 
-    ResamplingArrayReader * resamplingArrayReader;
+    newdigate::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 ResamplingArrayReader();
+        resamplingArrayReader = new newdigate::ResamplingArrayReader();
     }
 
     ~ResamplingArrayWavFixture() {
         delete resamplingArrayReader;
     }
 
-    ResamplingArrayReader * resamplingArrayReader;
+    newdigate::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 "IndexableFile.h"
+#include "IndexableSDFile.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::IndexableFile<16, 2> indexable("blah.h");               // use max 2 buffers, with 16 elements each....
+        newdigate::IndexableSDFile<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 ResamplingSdReader();
+        resamplingSdReader = new newdigate::ResamplingSdReader();
     }
 
     ~ResamplingReaderFixture() {
         delete resamplingSdReader;
     }
 
-    ResamplingSdReader * resamplingSdReader;
+    newdigate::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, ResamplingSdReader *resamplingSdReader) {
+    void testReadForwardAtDoublePlaybackRate(const uint32_t size_of_datasource, newdigate::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->playRaw("test2.bin", 1);
+        resamplingSdReader->play("test2.bin", false, 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

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

third-party/effect_modulated_delay/src/effect_modulated_delay.cpp

@@ -22,7 +22,6 @@
 */
 
 #include <Arduino.h>
-#include "config.h"
 #include <Audio.h>
 #include "arm_math.h"
 #include "effect_modulated_delay.h"

third-party/effect_modulated_delay/src/effect_modulated_delay.h

@@ -26,7 +26,6 @@
 
 #include "Arduino.h"
 #include "AudioStream.h"
-#include "config.h"
 
 /*************************************************************************/
 //                A u d i o E f f e c t M o d u l a t e d D e l a y