Merge 5cbcfa2230 into 492a5beba4

* Fix GCC12.3 new warnings for RP2040

* Remove OPUS encoder, not supported on embedded

.github/workflows/pr-or-master-push.yml

@@ -20,10 +20,10 @@ jobs:
       matrix:
         chunk: [0, 1, 2, 3, 4]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v5
       with:
         python-version: '3.x'
     - name: Build Sketches
@@ -43,10 +43,10 @@ jobs:
       matrix:
         chunk: [0, 1, 2, 3, 4]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v5
       with:
         python-version: '3.x'
     - name: Build Sketches
@@ -66,10 +66,10 @@ jobs:
       matrix:
         chunk: [0, 1, 2, 3, 4]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v4
       with:
         python-version: '3.x'
     - name: Build Sketches
@@ -87,10 +87,10 @@ jobs:
     name: Host tests
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v5
       with:
         python-version: '3.x'
     - name: Run host tests
@@ -115,7 +115,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: arduino/arduino-lint-action@v1
         with:
           library-manager: 'update'
@@ -128,7 +128,7 @@ jobs:
       run:
         shell: bash
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
     - name: Run codespell

README.md

@@ -1,4 +1,4 @@
-# ESP8266Audio - supports ESP8266 & ESP32 & Raspberry Pi Pico RP2040 [![Gitter](https://badges.gitter.im/ESP8266Audio/community.svg)](https://gitter.im/ESP8266Audio/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+# ESP8266Audio - supports ESP8266 & ESP32 & ESP32-S3 & Raspberry Pi Pico RP2040 [![Gitter](https://badges.gitter.im/ESP8266Audio/community.svg)](https://gitter.im/ESP8266Audio/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 Arduino library for parsing and decoding MOD, WAV, MP3, FLAC, MIDI, AAC, and RTTL files and playing them on an I2S DAC or even using a software-simulated delta-sigma DAC with dynamic 32x-128x oversampling.
 
 ESP8266 is fully supported and most mature, but ESP32 is also mostly there with built-in DAC as well as external ones.
@@ -142,6 +142,8 @@ AudioOutputI2S: Interface for any I2S 16-bit DAC.  Sends stereo or mono signals
 
 AudioOutputI2SNoDAC:  Abuses the I2S interface to play music without a DAC.  Turns it into a 32x (or higher) oversampling delta-sigma DAC.  Use the schematic below to drive a speaker or headphone from the I2STx pin (i.e. Rx).  Note that with this interface, depending on the transistor used, you may need to disconnect the Rx pin from the driver to perform serial uploads.  Mono-only output, of course.
 
+AudioOutputI2SNoDACS3 (experimental): Same as the one above, but (ONLY) supports the ESP32-S3. It also requires a dummy (unused) pin for the clock output.
+
 AudioOutputSPDIF (experimental): Another way to abuse the I2S peripheral to send out BMC encoded S/PDIF bitstream. To interface with S/PDIF receiver it needs optical or coaxial transceiver, for which some examples can be found at https://www.epanorama.net/documents/audio/spdif.html. It should work even with the simplest form with red LED and current limiting resistor, fed into TOSLINK cable. Minimum sample rate supported by is 32KHz. Due to BMC coding, actual symbol rate on the pin is 4x normal I2S data rate, which drains DMA buffers quickly. See more details inside [AudioOutputSPDIF.cpp](src/AudioOutputSPDIF.cpp#L17)
 
 AudioOutputSerialWAV:  Writes a binary WAV format with headers to the Serial port.  If you capture the serial output to a file you can play it back on your development system.

src/AudioGeneratorFLAC.cpp

@@ -196,7 +196,7 @@ char AudioGeneratorFLAC::error_cb_str[64];
 void AudioGeneratorFLAC::error_cb(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status)
 {
   (void) decoder;
-  strncpy_P(error_cb_str, FLAC__StreamDecoderErrorStatusString[status], 64);
+  strncpy_P(error_cb_str, FLAC__StreamDecoderErrorStatusString[status], sizeof(AudioGeneratorFLAC::error_cb_str) - 1);
   cb.st((int)status, error_cb_str);
 }
 

src/AudioOutputI2SNoDACS3.cpp

@@ -0,0 +1,184 @@
+/*
+  AudioOutputI2SNoDACS3
+  Class for outputting PDM audio on the ESP32-S3 without an external DAC
+  
+  Copyright (C) 2024  Hema2
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "AudioOutputI2SNoDACS3.h"
+
+#if CONFIG_IDF_TARGET_ESP32S3
+
+AudioOutputI2SNoDACS3::AudioOutputI2SNoDACS3(int doutPin, int dummyPin, int port, int dma_buf_count)
+{
+  this->doutPin = (gpio_num_t)doutPin;
+  this->dummyPin = (gpio_num_t)dummyPin;
+  
+  this->portNo = port;
+  this->dma_buf_count = dma_buf_count;
+
+  // Set initial I2S state
+  i2sOn = false;
+
+  // Set defaults
+  mono = false;
+  bps = 16;
+  channels = 2;
+  hertz = 44100;
+  SetGain(1.0);
+}
+
+AudioOutputI2SNoDACS3::~AudioOutputI2SNoDACS3()
+{
+  stop();
+}
+
+bool AudioOutputI2SNoDACS3::SetRate(int hz)
+{
+  // TODO - have a list of allowable rates from constructor, check them
+  this->hertz = hz;
+  if (i2sOn)
+  {
+    i2s_set_sample_rates((i2s_port_t)portNo, AdjustI2SRate(hz));
+  }
+  return true;
+}
+
+bool AudioOutputI2SNoDACS3::SetBitsPerSample(int bits)
+{
+  if ( (bits != 16) && (bits != 8) ) return false;
+  this->bps = bits;
+  return true;
+}
+
+bool AudioOutputI2SNoDACS3::SetChannels(int channels)
+{
+  if ( (channels < 1) || (channels > 2) ) return false;
+  this->channels = channels;
+  return true;
+}
+
+bool AudioOutputI2SNoDACS3::SetOutputModeMono(bool mono)
+{
+  this->mono = mono;
+  return true;
+}
+
+bool AudioOutputI2SNoDACS3::begin()
+{
+  if (!i2sOn)
+  {
+    i2s_config_t i2s_config = {
+      .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_PDM),
+      .sample_rate = 30000, // initial value ?????????
+      .bits_per_sample = i2s_bits_per_sample_t(bps),
+      .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
+      .communication_format = I2S_COMM_FORMAT_STAND_I2S,
+      .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1, // lowest interrupt priority
+      .dma_buf_count = dma_buf_count,
+      .dma_buf_len = 128,
+      .use_apll = true,
+      .tx_desc_auto_clear = true,
+      .fixed_mclk = 0,
+      .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+      .bits_per_chan = I2S_BITS_PER_CHAN_DEFAULT,
+    };
+
+    audioLogger->printf("+%d %p\n", portNo, &i2s_config);
+    if (i2s_driver_install((i2s_port_t)portNo, &i2s_config, 0, NULL) != ESP_OK)
+    {
+      audioLogger->println(F("ERROR: Unable to install I2S drives\n"));
+      return false;
+    }
+
+    // Set pinout
+    i2s_pin_config_t i2s_pinout = {
+      .bck_io_num = I2S_PIN_NO_CHANGE, // no bck
+      .ws_io_num = dummyPin, // dummy pin for LR clock
+      .data_out_num = doutPin, // PDM data out
+      .data_in_num = I2S_PIN_NO_CHANGE // no input
+    };
+
+    if (i2s_set_pin((i2s_port_t)portNo, &i2s_pinout) != ESP_OK)
+    {
+      audioLogger->println(F("ERROR: Unable to set I2S pins\n"));
+      return false;
+    }
+    
+    i2s_zero_dma_buffer((i2s_port_t)portNo);
+    i2s_start((i2s_port_t)portNo);
+  }
+
+  i2sOn = true;
+  SetRate(hertz);
+  return true;
+}
+
+bool AudioOutputI2SNoDACS3::ConsumeSample(int16_t sample[2])
+{
+
+  //return if we haven't called ::begin yet
+  if (!i2sOn)
+    return false;
+
+  int16_t ms[2];
+
+  ms[0] = sample[0];
+  ms[1] = sample[1];
+  MakeSampleStereo16( ms );
+
+  if (this->mono) {
+    // Average the two samples and overwrite
+    int32_t ttl = ms[LEFTCHANNEL] + ms[RIGHTCHANNEL];
+    ms[LEFTCHANNEL] = ms[RIGHTCHANNEL] = (ttl>>1) & 0xffff;
+  }
+
+  uint32_t s32 = ((Amplify(ms[RIGHTCHANNEL])) << 16) | (Amplify(ms[LEFTCHANNEL]) & 0xffff);
+  
+  size_t i2s_bytes_written;
+  i2s_write((i2s_port_t)portNo, (const char*)&s32, sizeof(uint32_t), &i2s_bytes_written, 0);
+  return i2s_bytes_written;
+}
+
+void AudioOutputI2SNoDACS3::flush()
+{
+  // makes sure that all stored DMA samples are consumed / played
+  int buffersize = 128 * this->dma_buf_count;
+  int16_t samples[2] = {0x0, 0x0};
+  for (int i = 0; i < buffersize; i++)
+  {
+    while (!ConsumeSample(samples))
+    {
+      delay(10);
+    }
+  }
+}
+
+bool AudioOutputI2SNoDACS3::stop()
+{
+  if (!i2sOn)
+    return false;
+
+  i2s_zero_dma_buffer((i2s_port_t)portNo);
+
+  audioLogger->printf("UNINSTALL I2S\n");
+  i2s_driver_uninstall((i2s_port_t)portNo); //stop & destroy i2s driver
+
+  i2sOn = false;
+  return true;
+}
+
+#endif // CONFIG_IDF_TARGET_ESP32S3

src/AudioOutputI2SNoDACS3.h

@@ -0,0 +1,61 @@
+/*
+  AudioOutputI2SNoDACS3
+  Class for outputting PDM audio on the ESP32-S3 without an external DAC
+  
+  Copyright (C) 2024  Hema2
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "AudioOutput.h"
+#include "driver/i2s.h"
+#include <Arduino.h>
+
+#if CONFIG_IDF_TARGET_ESP32S3
+
+class AudioOutputI2SNoDACS3 : public AudioOutput
+{
+  public:
+    /// @brief No-DAC Audio Output for ESP32-S3
+    /// @param doutPin Pin to modulate audio on (PDM data)
+    /// @param dummyPin Dummy pin to use for WS/BCLK (PDM clock)
+    /// @param port 
+    /// @param dma_buf_count 
+    AudioOutputI2SNoDACS3(int doutPin, int dummyPin = GPIO_NUM_3, int port=0, int dma_buf_count = 8);
+
+    virtual ~AudioOutputI2SNoDACS3() override;
+    virtual bool SetRate(int hz) override;
+    virtual bool SetBitsPerSample(int bits) override;
+    virtual bool SetChannels(int channels) override;
+    virtual bool begin() override;
+    virtual bool ConsumeSample(int16_t sample[2]) override;
+    virtual void flush() override;
+    virtual bool stop() override;
+    
+    bool SetOutputModeMono(bool mono);  // Force mono output no matter the input
+
+  protected:
+    virtual int AdjustI2SRate(int hz) { return (int)((float)hz / 1.0f); }
+    uint8_t portNo;
+    bool mono;
+    bool i2sOn;
+    int dma_buf_count;
+    
+    gpio_num_t doutPin;
+    gpio_num_t dummyPin;
+};
+
+#endif // CONFIG_IDF_TARGET_ESP32S3

src/ESP8266Audio.h

@@ -41,6 +41,7 @@
 #include "AudioOutput.h"
 #include "AudioOutputI2S.h"
 #include "AudioOutputI2SNoDAC.h"
+#include "AudioOutputI2SNoDACS3.h"
 #include "AudioOutputPWM.h"
 #include "AudioOutputMixer.h"
 #include "AudioOutputNull.h"

src/libmad/layer3.c

@@ -352,19 +352,18 @@ struct fixedfloat {
 
    root_table[3 + x] = 2^(x/4)
 */
+static mad_fixed_t const root_table_val[7] PROGMEM = {
+  MAD_F(0x09837f05) /* 2^(-3/4) == 0.59460355750136 */,
+  MAD_F(0x0b504f33) /* 2^(-2/4) == 0.70710678118655 */,
+  MAD_F(0x0d744fcd) /* 2^(-1/4) == 0.84089641525371 */,
+  MAD_F(0x10000000) /* 2^( 0/4) == 1.00000000000000 */,
+  MAD_F(0x1306fe0a) /* 2^(+1/4) == 1.18920711500272 */,
+  MAD_F(0x16a09e66) /* 2^(+2/4) == 1.41421356237310 */,
+  MAD_F(0x1ae89f99) /* 2^(+3/4) == 1.68179283050743 */
+};
 static inline mad_fixed_t root_table(int i)
 {
-  static mad_fixed_t const root_table_val[7] PROGMEM = {
-    MAD_F(0x09837f05) /* 2^(-3/4) == 0.59460355750136 */,
-    MAD_F(0x0b504f33) /* 2^(-2/4) == 0.70710678118655 */,
-    MAD_F(0x0d744fcd) /* 2^(-1/4) == 0.84089641525371 */,
-    MAD_F(0x10000000) /* 2^( 0/4) == 1.00000000000000 */,
-    MAD_F(0x1306fe0a) /* 2^(+1/4) == 1.18920711500272 */,
-    MAD_F(0x16a09e66) /* 2^(+2/4) == 1.41421356237310 */,
-    MAD_F(0x1ae89f99) /* 2^(+3/4) == 1.68179283050743 */
-  };
-  volatile uint32_t a = *(uint32_t*)&root_table_val[i];
-  return *(mad_fixed_t*)&a;
+  return root_table_val[i];
 }
 /*
    coefficients for aliasing reduction
@@ -374,28 +373,26 @@ static inline mad_fixed_t root_table(int i)
    cs[i] =    1 / sqrt(1 + c[i]^2)
    ca[i] = c[i] / sqrt(1 + c[i]^2)
 */
+static mad_fixed_t const cs_val[8] PROGMEM = {
+  +MAD_F(0x0db84a81) /* +0.857492926 */, +MAD_F(0x0e1b9d7f) /* +0.881741997 */,
+  +MAD_F(0x0f31adcf) /* +0.949628649 */, +MAD_F(0x0fbba815) /* +0.983314592 */,
+  +MAD_F(0x0feda417) /* +0.995517816 */, +MAD_F(0x0ffc8fc8) /* +0.999160558 */,
+  +MAD_F(0x0fff964c) /* +0.999899195 */, +MAD_F(0x0ffff8d3) /* +0.999993155 */
+};
 static inline mad_fixed_t cs(int i)
 {
-  static mad_fixed_t const cs_val[8] PROGMEM = {
-    +MAD_F(0x0db84a81) /* +0.857492926 */, +MAD_F(0x0e1b9d7f) /* +0.881741997 */,
-    +MAD_F(0x0f31adcf) /* +0.949628649 */, +MAD_F(0x0fbba815) /* +0.983314592 */,
-    +MAD_F(0x0feda417) /* +0.995517816 */, +MAD_F(0x0ffc8fc8) /* +0.999160558 */,
-    +MAD_F(0x0fff964c) /* +0.999899195 */, +MAD_F(0x0ffff8d3) /* +0.999993155 */
-  };
-  volatile uint32_t a = *(uint32_t*)&cs_val[i];
-  return *(mad_fixed_t*)&a;
+  return cs_val[i];
 }
 
+static mad_fixed_t const ca_val[8] PROGMEM = {
+  -MAD_F(0x083b5fe7) /* -0.514495755 */, -MAD_F(0x078c36d2) /* -0.471731969 */,
+  -MAD_F(0x05039814) /* -0.313377454 */, -MAD_F(0x02e91dd1) /* -0.181913200 */,
+  -MAD_F(0x0183603a) /* -0.094574193 */, -MAD_F(0x00a7cb87) /* -0.040965583 */,
+  -MAD_F(0x003a2847) /* -0.014198569 */, -MAD_F(0x000f27b4) /* -0.003699975 */
+};
 static inline mad_fixed_t ca(int i)
 {
-  static mad_fixed_t const ca_val[8] PROGMEM = {
-    -MAD_F(0x083b5fe7) /* -0.514495755 */, -MAD_F(0x078c36d2) /* -0.471731969 */,
-    -MAD_F(0x05039814) /* -0.313377454 */, -MAD_F(0x02e91dd1) /* -0.181913200 */,
-    -MAD_F(0x0183603a) /* -0.094574193 */, -MAD_F(0x00a7cb87) /* -0.040965583 */,
-    -MAD_F(0x003a2847) /* -0.014198569 */, -MAD_F(0x000f27b4) /* -0.003699975 */
-  };
-  volatile uint32_t a = *(uint32_t*)&ca_val[i];
-  return *(mad_fixed_t*)&a;
+  return ca_val[i];
 }
 
 /*
@@ -417,32 +414,31 @@ mad_fixed_t const imdct_s[6][6] PROGMEM  = {
 
    window_l[i] = sin((PI / 36) * (i + 1/2))
 */
+static mad_fixed_t const window_l_val[36] PROGMEM = {
+  MAD_F(0x00b2aa3e) /* 0.043619387 */, MAD_F(0x0216a2a2) /* 0.130526192 */,
+  MAD_F(0x03768962) /* 0.216439614 */, MAD_F(0x04cfb0e2) /* 0.300705800 */,
+  MAD_F(0x061f78aa) /* 0.382683432 */, MAD_F(0x07635284) /* 0.461748613 */,
+  MAD_F(0x0898c779) /* 0.537299608 */, MAD_F(0x09bd7ca0) /* 0.608761429 */,
+  MAD_F(0x0acf37ad) /* 0.675590208 */, MAD_F(0x0bcbe352) /* 0.737277337 */,
+  MAD_F(0x0cb19346) /* 0.793353340 */, MAD_F(0x0d7e8807) /* 0.843391446 */,
+
+  MAD_F(0x0e313245) /* 0.887010833 */, MAD_F(0x0ec835e8) /* 0.923879533 */,
+  MAD_F(0x0f426cb5) /* 0.953716951 */, MAD_F(0x0f9ee890) /* 0.976296007 */,
+  MAD_F(0x0fdcf549) /* 0.991444861 */, MAD_F(0x0ffc19fd) /* 0.999048222 */,
+  MAD_F(0x0ffc19fd) /* 0.999048222 */, MAD_F(0x0fdcf549) /* 0.991444861 */,
+  MAD_F(0x0f9ee890) /* 0.976296007 */, MAD_F(0x0f426cb5) /* 0.953716951 */,
+  MAD_F(0x0ec835e8) /* 0.923879533 */, MAD_F(0x0e313245) /* 0.887010833 */,
+
+  MAD_F(0x0d7e8807) /* 0.843391446 */, MAD_F(0x0cb19346) /* 0.793353340 */,
+  MAD_F(0x0bcbe352) /* 0.737277337 */, MAD_F(0x0acf37ad) /* 0.675590208 */,
+  MAD_F(0x09bd7ca0) /* 0.608761429 */, MAD_F(0x0898c779) /* 0.537299608 */,
+  MAD_F(0x07635284) /* 0.461748613 */, MAD_F(0x061f78aa) /* 0.382683432 */,
+  MAD_F(0x04cfb0e2) /* 0.300705800 */, MAD_F(0x03768962) /* 0.216439614 */,
+  MAD_F(0x0216a2a2) /* 0.130526192 */, MAD_F(0x00b2aa3e) /* 0.043619387 */,
+};
 static inline mad_fixed_t window_l(int i)
 {
-  static mad_fixed_t const window_l_val[36] PROGMEM = {
-    MAD_F(0x00b2aa3e) /* 0.043619387 */, MAD_F(0x0216a2a2) /* 0.130526192 */,
-    MAD_F(0x03768962) /* 0.216439614 */, MAD_F(0x04cfb0e2) /* 0.300705800 */,
-    MAD_F(0x061f78aa) /* 0.382683432 */, MAD_F(0x07635284) /* 0.461748613 */,
-    MAD_F(0x0898c779) /* 0.537299608 */, MAD_F(0x09bd7ca0) /* 0.608761429 */,
-    MAD_F(0x0acf37ad) /* 0.675590208 */, MAD_F(0x0bcbe352) /* 0.737277337 */,
-    MAD_F(0x0cb19346) /* 0.793353340 */, MAD_F(0x0d7e8807) /* 0.843391446 */,
-
-    MAD_F(0x0e313245) /* 0.887010833 */, MAD_F(0x0ec835e8) /* 0.923879533 */,
-    MAD_F(0x0f426cb5) /* 0.953716951 */, MAD_F(0x0f9ee890) /* 0.976296007 */,
-    MAD_F(0x0fdcf549) /* 0.991444861 */, MAD_F(0x0ffc19fd) /* 0.999048222 */,
-    MAD_F(0x0ffc19fd) /* 0.999048222 */, MAD_F(0x0fdcf549) /* 0.991444861 */,
-    MAD_F(0x0f9ee890) /* 0.976296007 */, MAD_F(0x0f426cb5) /* 0.953716951 */,
-    MAD_F(0x0ec835e8) /* 0.923879533 */, MAD_F(0x0e313245) /* 0.887010833 */,
-
-    MAD_F(0x0d7e8807) /* 0.843391446 */, MAD_F(0x0cb19346) /* 0.793353340 */,
-    MAD_F(0x0bcbe352) /* 0.737277337 */, MAD_F(0x0acf37ad) /* 0.675590208 */,
-    MAD_F(0x09bd7ca0) /* 0.608761429 */, MAD_F(0x0898c779) /* 0.537299608 */,
-    MAD_F(0x07635284) /* 0.461748613 */, MAD_F(0x061f78aa) /* 0.382683432 */,
-    MAD_F(0x04cfb0e2) /* 0.300705800 */, MAD_F(0x03768962) /* 0.216439614 */,
-    MAD_F(0x0216a2a2) /* 0.130526192 */, MAD_F(0x00b2aa3e) /* 0.043619387 */,
-  };
-  volatile uint32_t a = *(uint32_t*)&window_l_val[i];
-  return *(mad_fixed_t*)&a;
+  return window_l_val[i];
 }
 # endif  /* ASO_IMDCT */
 
@@ -452,18 +448,17 @@ static inline mad_fixed_t window_l(int i)
 
    window_s[i] = sin((PI / 12) * (i + 1/2))
 */
+static mad_fixed_t const window_s_val[12] PROGMEM = {
+  MAD_F(0x0216a2a2) /* 0.130526192 */, MAD_F(0x061f78aa) /* 0.382683432 */,
+  MAD_F(0x09bd7ca0) /* 0.608761429 */, MAD_F(0x0cb19346) /* 0.793353340 */,
+  MAD_F(0x0ec835e8) /* 0.923879533 */, MAD_F(0x0fdcf549) /* 0.991444861 */,
+  MAD_F(0x0fdcf549) /* 0.991444861 */, MAD_F(0x0ec835e8) /* 0.923879533 */,
+  MAD_F(0x0cb19346) /* 0.793353340 */, MAD_F(0x09bd7ca0) /* 0.608761429 */,
+  MAD_F(0x061f78aa) /* 0.382683432 */, MAD_F(0x0216a2a2) /* 0.130526192 */,
+};
 static inline mad_fixed_t window_s(int i)
 {
-  static mad_fixed_t const window_s_val[12] PROGMEM = {
-    MAD_F(0x0216a2a2) /* 0.130526192 */, MAD_F(0x061f78aa) /* 0.382683432 */,
-    MAD_F(0x09bd7ca0) /* 0.608761429 */, MAD_F(0x0cb19346) /* 0.793353340 */,
-    MAD_F(0x0ec835e8) /* 0.923879533 */, MAD_F(0x0fdcf549) /* 0.991444861 */,
-    MAD_F(0x0fdcf549) /* 0.991444861 */, MAD_F(0x0ec835e8) /* 0.923879533 */,
-    MAD_F(0x0cb19346) /* 0.793353340 */, MAD_F(0x09bd7ca0) /* 0.608761429 */,
-    MAD_F(0x061f78aa) /* 0.382683432 */, MAD_F(0x0216a2a2) /* 0.130526192 */,
-  };
-  volatile uint32_t a = *(uint32_t*)&window_s_val[i];
-  return *(mad_fixed_t*)&a;
+  return window_s_val[i];
 }
 
 /*
@@ -473,19 +468,18 @@ static inline mad_fixed_t window_s(int i)
    is_ratio[i] = tan(i * (PI / 12))
    is_table[i] = is_ratio[i] / (1 + is_ratio[i])
 */
+static mad_fixed_t const is_table_val[7] PROGMEM = {
+  MAD_F(0x00000000) /* 0.000000000 */,
+  MAD_F(0x0361962f) /* 0.211324865 */,
+  MAD_F(0x05db3d74) /* 0.366025404 */,
+  MAD_F(0x08000000) /* 0.500000000 */,
+  MAD_F(0x0a24c28c) /* 0.633974596 */,
+  MAD_F(0x0c9e69d1) /* 0.788675135 */,
+  MAD_F(0x10000000) /* 1.000000000 */
+};
 static inline mad_fixed_t is_table(int i)
 {
-  static mad_fixed_t const is_table_val[7] PROGMEM = {
-    MAD_F(0x00000000) /* 0.000000000 */,
-    MAD_F(0x0361962f) /* 0.211324865 */,
-    MAD_F(0x05db3d74) /* 0.366025404 */,
-    MAD_F(0x08000000) /* 0.500000000 */,
-    MAD_F(0x0a24c28c) /* 0.633974596 */,
-    MAD_F(0x0c9e69d1) /* 0.788675135 */,
-    MAD_F(0x10000000) /* 1.000000000 */
-  };
-  volatile uint32_t a = *(uint32_t*)&is_table_val[i];
-  return *(mad_fixed_t*)&a;
+  return is_table_val[i];
 }
 
 /*
@@ -1739,7 +1733,10 @@ void sdctII(mad_fixed_t const x[18], mad_fixed_t X[18])
     s = *(volatile mad_fixed_t*)(volatile uint32_t*)&scale[i + 2]; tmp[i + 2] = mad_f_mul(x[i + 2] - x[18 - (i + 2) - 1], s); //scale[i + 2]);
   }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstringop-overflow"
   fastsdct(tmp, &X[1]);
+#pragma GCC diagnostic pop
 
   /* output accumulation */
 

src/libopus/opus_encoder.c

@@ -24,7 +24,7 @@
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
-
+#if 0
 //#ifdef HAVE_CONFIG_H
 #include "config.h"
 //#endif
@@ -2781,3 +2781,4 @@ void opus_encoder_destroy(OpusEncoder *st)
 {
     opus_free(st);
 }
+#endif

src/libopus/opus_multistream_encoder.c

@@ -24,7 +24,7 @@
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
-
+#if 0
 //#ifdef HAVE_CONFIG_H
 #include "config.h"
 //#endif
@@ -1326,3 +1326,4 @@ void opus_multistream_encoder_destroy(OpusMSEncoder *st)
 {
     opus_free(st);
 }
+#endif

src/libopus/opus_projection_encoder.c

@@ -24,7 +24,7 @@
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
-
+#if 0
 //#ifdef HAVE_CONFIG_H
 #include "config.h"
 //#endif
@@ -465,4 +465,4 @@ bad_arg:
   va_end(ap);
   return OPUS_BAD_ARG;
 }
-
+#endif

src/libopus/silk/NLSF2A.c

@@ -62,6 +62,8 @@ static OPUS_INLINE void silk_NLSF2A_find_poly(
     }
 }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 /* compute whitening filter coefficients from normalized line spectral frequencies */
 void silk_NLSF2A(
     opus_int16                  *a_Q12,             /* O    monic whitening filter coefficients in Q12,  [ d ]          */
@@ -143,4 +145,4 @@ void silk_NLSF2A(
     free(Q);
     free(a32_QA1);
 }
-
+#pragma GCC diagnostic pop

src/libopus/silk/enc_API.c

@@ -24,6 +24,7 @@ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
+#if 0
 
 //#ifdef HAVE_CONFIG_H
 #include "../config.h"
@@ -574,3 +575,4 @@ opus_int silk_Encode(                                   /* O    Returns error co
     return ret;
 }
 
+#endif

src/libopus/silk/fixed/encode_frame_FIX.c

@@ -34,6 +34,7 @@ POSSIBILITY OF SUCH DAMAGE.
 #include "../../celt/stack_alloc.h"
 #include "../tuning_parameters.h"
 
+#if 0
 /* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate           */
 static OPUS_INLINE void silk_LBRR_encode_FIX(
     silk_encoder_state_FIX          *psEnc,                                 /* I/O  Pointer to Silk FIX encoder state                                           */
@@ -446,3 +447,4 @@ static OPUS_INLINE void silk_LBRR_encode_FIX(
         silk_memcpy( psEncCtrl->Gains_Q16, TempGains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) );
     }
 }
+#endif

src/opusfile/opusfile.c

@@ -1749,7 +1749,7 @@ opus_int64 op_raw_total(const OggOpusFile *_of,int _li){
 ogg_int64_t op_pcm_total(const OggOpusFile *_of,int _li){
   OggOpusLink *links;
   ogg_int64_t  pcm_total;
-  ogg_int64_t  diff;
+  ogg_int64_t  diff = 0;
   int          nlinks;
   nlinks=_of->nlinks;
   if(OP_UNLIKELY(_of->ready_state<OP_OPENED)

tests/common.sh

@@ -70,23 +70,13 @@ function install_esp32()
     local ide_path=$1
     pip install pyserial
     pip3 install pyserial
-    cd $ide_path/hardware
-    mkdir espressif
-    cd espressif
-    git clone https://github.com/espressif/arduino-esp32.git esp32
-    pushd esp32
-    # Set custom warnings for all builds
-
-    echo "compiler.c.extra_flags=-Wall -Wextra -Werror $debug_flags" > platform.local.txt
-    echo "compiler.cpp.extra_flags=-Wall -Wextra -Werror $debug_flags" >> platform.local.txt
-    echo -e "\n----platform.local.txt----"
-    cat platform.local.txt
-    git submodule update --init
-    cd tools
-    python3 get.py
-    export PATH="$ide_path/hardware/espressif/esp32/tools/xtensa-esp32-elf/bin/:$PATH"
+    mkdir -p ~/bin
+    pushd ~/bin
+    wget -q https://downloads.arduino.cc/arduino-cli/arduino-cli_latest_Linux_64bit.tar.gz
+    tar xvf arduino-cli_latest_Linux_64bit.tar.gz
+    export PATH=$PATH:$PWD
     popd
-    cd esp32
+    arduino-cli core install --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json esp32:esp32
 }
 
 function install_arduino()
@@ -99,6 +89,20 @@ function install_arduino()
     install_libraries
 }
 
+function skip_esp32()
+{
+    local ino=$1
+    local skiplist=""
+    # Add items to the following list with "\n" netween them to skip running.  No spaces, tabs, etc. allowed
+    read -d '' skiplist << EOL || true
+/MixerSample/
+EOL
+    echo $ino | grep -q -F "$skiplist"
+    echo $(( 1 - $? ))
+}
+
+
+
 if [ "$BUILD_MOD" == "" ]; then
     export BUILD_MOD=1
     export BUILD_REM=0
@@ -117,10 +121,18 @@ if [ "$BUILD_TYPE" = "build" ]; then
 elif [ "$BUILD_TYPE" = "build_esp32" ]; then
     install_arduino
     install_esp32 "$HOME/arduino_ide"
-    export FQBN="espressif:esp32:esp32:PSRAM=enabled,PartitionScheme=huge_app"
-    mkdir -p "$GITHUB_WORKSPACE/hardware"
-    ln -s "$GITHUB_WORKSPACE/../" "$GITHUB_WORKSPACE/libraries"
-    source "$HOME/arduino_ide/hardware/espressif/esp32/.github/scripts/sketch_utils.sh" chunk_build -ai "$HOME/arduino_ide" -au "$GITHUB_WORKSPACE" -fqbn "$FQBN" -t esp32 -p "$GITHUB_WORKSPACE" -i $BUILD_REM -m $BUILD_MOD
+    export testcnt=0
+    for i in $(find ~/Arduino/libraries/ESP8266Audio -name "*.ino"); do
+        testcnt=$(( ($testcnt + 1) % $BUILD_MOD ))
+        if [ $testcnt -ne $BUILD_REM ]; then
+            continue  # Not ours to do
+        fi
+        if [[ $(skip_esp32 $i) = 1 ]]; then
+            echo -e "\n ------------ Skipping $i ------------ \n";
+            continue
+        fi
+        arduino-cli compile --fqbn esp32:esp32:esp32 --warnings all $i
+    done
 elif [ "$BUILD_TYPE" = "build_rp2040" ]; then
     install_arduino
     install_rp2040 "$HOME/arduino_ide"