error: no match for 'operator[]' in buffers.h

[mutedh]

Problem Description

I try to use the example "basic-a2dp-eq-audiokit.ino" in AI Thinker Audiokit, but when i upload the example i recive this error:

C:\Users\Documents\Arduino\libraries\arduino-audio-tools\src/AudioTools/Buffers.h: In instantiation of 'void audio_tools::NBuffer::resize(int, int) [with T = unsigned char]': C:\Users\Documents\Arduino\libraries\arduino-audio-tools\src/AudioTools/Buffers.h:701:16: required from here C:\Users\Documents\Arduino\libraries\arduino-audio-tools\src/AudioTools/Buffers.h:711:24: error: no match for 'operator[]' (operand types are 'audio_tools::QueueFromVector<audio_tools::BaseBuffer>' and 'int') 711 | available_buffers[j] = new SingleBuffer(size); | ~~~~~^ C:\Users\Documents\Arduino\libraries\arduino-audio-tools\src/AudioTools/Buffers.h:712:28: error: no match for 'operator[]' (operand types are 'audio_tools::QueueFromVector<audio_tools::BaseBuffer>' and 'int') 712 | if (available_buffers[j] == nullptr) {

what can be wrong?

Device Description

AI-Thinker AudioKit

Sketch

basic-a2dp-eq-audiokit.ino example

Other Steps to Reproduce

No response

What is your development environment

No response

I have checked existing issues, discussions and online documentation

• [X] I confirm I have checked existing issues, discussions and online documentation

[pschatzmann]

I think you picked up the audiotools in some inconsistent state. Try again with the latest corrections and let me know if this did not help

[mutedh]

i did a pull now and works, thanks :)

[mutedh]

Hello, i have one question, i use sigmadsp to control a dsp ADAU1701 with esp32-a1s but i think it doesnt work a2dp and i2c, . could be?

because when i use a2dp, the i2c doesnt send nothing.but if i dont use a2dp, the i2c send the information.

here is the code:

`/**		SigmaDSP library		https://github.com/MCUdude/SigmaDSP
1_Volume1.ino
This example fades the volume up and down
using a slew volume adjustment slider.
See the SigmaStudio project file if you want
to learn more, tweak or do modifications.
**/

// Include Wire and SigmaDSP library

include

include

// Include generated parameter file

include "SigmaDSP_parameters.h"

include "AudioTools.h"

include "AudioLibs/A2DPStream.h" // install https://github.com/pschatzmann/ESP32-A2DP

include "AudioLibs/AudioBoardStream.h" // install https://github.com/pschatzmann/arduino-audio-driver

// The first parameter is the Wire object we'll be using when communicating wth the DSP // The second parameter is the DSP i2c address, which is defined in the parameter file // The third parameter is the sample rate // An optional fourth parameter is the pin to physically reset the DSP SigmaDSP dsp(Wire, DSP_I2C_ADDRESS, 48000.00f /,12/); BluetoothA2DPSink a2dp_sink; AudioBoardStream kit(AudioKitEs8388V1);

// Only needed if an external i2c EEPROM is present + the DSP is in selfboot mode // The first parameter is the Wire object we'll be using when communicating wth the EEPROM // The second parameter is the EEPROM i2c address, which is defined in the parameter file // The third parameter is the EEPROM size in kilobits (kb) // An optional fourth parameter is the pin to toggle while writing content to EEPROM //DSPEEPROM ee(Wire, EEPROM_I2C_ADDRESS, 256, LED_BUILTIN); void read_data_stream(const uint8_t *data, uint32_t length) { kit.write(data, length); }

void setup() {
Serial.begin(9600); Serial.println(F("SigmaDSP 1_Volume example\n"));

Wire.begin(); dsp.begin(); //ee.begin();

delay(2000);

Serial.println(F("Pinging i2c lines...\n0 -> deveice is present\n2 -> device is not present")); Serial.print(F("DSP response: ")); Serial.println(dsp.ping()); //Serial.print(F("EEPROM ping: ")); //Serial.println(ee.ping());

// Use this step if no EEPROM is present Serial.print(F("\nLoading DSP program... ")); loadProgram(dsp); Serial.println("Done!\n");

auto cfg = kit.defaultConfig(TX_MODE); cfg.sd_active = false; kit.begin(cfg);

// register callback a2dp_sink.set_stream_reader(read_data_stream, false); a2dp_sink.start("AudioKit"); // Comment out the three code lines above and use this step instead if EEPROM is present // The last parameter in writeFirmware is the FW version, and prevents the MCU from overwriting on every reboot //ee.writeFirmware(DSP_eeprom_firmware, sizeof(DSP_eeprom_firmware), 0); //dsp.reset(); //delay(2000); // Wait for the FW to load from the EEPROM }

void loop() { // Slowly adjust the volume down to -50dB Serial.println(F("Fading down")); for(int8_t i = 0; i > -51; i--) { dsp.volume_slew(MOD_SWVOL1_ALG0_TARGET_ADDR, i, 12); // (First volume slider address, dB value, optional slew value) delay(200); }

// Slowly adjust the volume up to 0dB Serial.println(F("Fading up")); for(int8_t i = -50; i < 1; i++) { dsp.volume_slew(MOD_SWVOL1_ALG0_TARGET_ADDR, i); // Slew rate is default 12 delay(200); } } `

[pschatzmann]

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