Problems with EQUALIZER and MP3

[hash6iron]

Hello @pschatzmann

I'm having problems with equalizer as I can see. Check this sketch below.

void MediaPlayer(bool isWav = false) 
{
  // Generamos el media descriptor
  String PATH_FILE_TO_LOAD = "/test.mp3";

  // Configuramos el amplificador de salida
  kitStream.setPAPower(ACTIVE_AMP);
  kitStream.setVolume(MAIN_VOL / 100);

  // Configuración de la fuente de audio
  AudioSourceSDFAT source(sdf);

  // Seleccionamos el directorio de la fuente de audio
  source.setPath(FILE_LAST_DIR.c_str());

  // Filtramos por el tipo de archivo
  source.setFileFilter(isWav ? "*.wav" : "*.mp3");

  // Configuración del decodificador
  MultiDecoder decoder;
  MP3DecoderHelix decoderMP3;
  WAVDecoder decoderWAV;    
  decoder.addDecoder(decoderMP3, "audio/mpeg");
  decoder.addDecoder(decoderWAV, "audio/vnd.wave");
  decoder.addNotifyAudioChange(kitStream);

  //
  MetaDataFilterDecoder metadatafilter(decoderMP3);

  // Configuración del ecualizador
  audio_tools::Equalizer3Bands eq(kitStream);
  audio_tools::ConfigEqualizer3Bands cfg_eq;

  cfg_eq.gain_low = 0.7;
  cfg_eq.gain_medium = 0.5;
  cfg_eq.gain_high = 0.9;


  // Configuración del reproductor
  AudioPlayer player;

  // Inicializamos el player
  player.setAudioSource(source);
  player.setOutput(eq);
  
  // Esto es necesario para que el player sepa donde rediregir el audio
  if (isWav)
  {
    player.setDecoder(decoder); // Usamos el puntero al decodificador WAV
  }
  else
  {
    player.setDecoder(metadatafilter); // Usamos el puntero al decodificador MP3
  }

  //player.setDecoder(metadatafilter); // Usamos el puntero al decodificador MP3
  player.setVolume(1);
  player.setBufferSize(512 * 1024); // Buffer de 512 KB
  player.setAutoNext(false);
  
  // Esto lo hacemos para capturar el fichero seleccionado
  source.selectStream(PATH_FILE_TO_LOAD.c_str()); // Seleccionamos el archivo actual

  // Variables
  int currentIdx = source.index(); // El índice actual del archivo
  
  player.begin(currentIdx);
  player.copy(); // Iniciamos el reproductor

  // Capturamos el sampling rate del fichero
  AudioInfo info = kitStream.defaultConfig();
  info.sample_rate = decoder.audioInfo().sample_rate;
  // Lo transferimos al kitStream
  kitStream.setAudioInfo(info);

  // Bucle principal
  while (!EJECT && !REC && !STOP) 
  {
      // Actualizamos el volumen y el ecualizador si es necesario
      kitStream.setVolume(MAIN_VOL / 100);           
      player.copy();
      tapeAnimationON();
 }

  // Finalización
  tapeAnimationOFF();
  player.end();
  eq.end();
  decoderMP3.end();
  decoderWAV.end(); 

}

When I play the attached test.mp3, the ESP32 reboots with this error message, which appears to point to equalizer.h

Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.

Core  0 register dump:
PC      : 0x401ddd67  PS      : 0x00060a30  A0      : 0x800d6dab  A1      : 0x3fff39f0  
A2      : 0x3fff3e98  A3      : 0x00000000  A4      : 0x00000000  A5      : 0x00060023
A6      : 0x00060021  A7      : 0x00000001  A8      : 0x800d5bde  A9      : 0x3fff39d0  
A10     : 0x00000000  A11     : 0x46fffe00  A12     : 0x00000031  A13     : 0x46000000
A14     : 0x00000000  A15     : 0x00000000  SAR     : 0x00000008  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000004  LBEG    : 0x40114c08  LEND    : 0x40114c0c  LCOUNT  : 0x00000000


Backtrace: 0x401ddd64:0x3fff39f0 0x400d6da8:0x3fff3a10 0x400d6ec1:0x3fff3a40 0x400e0fcb:0x3fff3a60 0x400e0a2b:0x3fff3a80 0x400d8be2:0x3fff3aa0 0x400d8ca1:0x3fff3ac0 0x400d8ced:0x3fff3ae0 0x400d8b63:0x3fff3b30 0x401ddc85:0x3fff3b50 0x401dd575:0x3fff3b70 0x400e2481:0x3fff3b90 0x400e2564:0x3fff3be0 0x401dda8f:0x3fff3c00 0x400e3a10:0x3fff3c20 0x400e3b90:0x3fff3c40 0x400ecc2f:0x3fff3c60 0x400fb2cf:0x3fff4b50 0x400fe16b:0x3fff4c10 0x400fee7b:0x3fff4db0

  #0  0x401ddd64:0x3fff39f0 in audio_tools::Equalizer3Bands::sample(audio_tools::Equalizer3Bands::EQSTATE&, float) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioFilter/Equalizer.h:201
  #1  0x400d6da8:0x3fff3a10 in audio_tools::Equalizer3Bands::filterSamples(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioFilter/Equalizer.h:170 (discriminator 2)
  #2  0x400d6ec1:0x3fff3a40 in audio_tools::Equalizer3Bands::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioFilter/Equalizer.h:111
  #3  0x400e0fcb:0x3fff3a60 in audio_tools::FadeStream::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/Fade.h:297
      (inlined by) audio_tools::FadeStream::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/Fade.h:285
  #4  0x400e0a2b:0x3fff3a80 in audio_tools::VolumeStream::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/VolumeStream.h:151
      (inlined by) audio_tools::VolumeStream::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/VolumeStream.h:144
  #5  0x400d8be2:0x3fff3aa0 in libhelix::CommonHelix::writeToOut(unsigned char*, unsigned int) at .pio/libdeps/esp32devCOM/libhelix/src/CommonHelix.h:243
  #6  0x400d8ca1:0x3fff3ac0 in libhelix::MP3DecoderHelix::provideResult(_MP3FrameInfo&) at .pio/libdeps/esp32devCOM/libhelix/src/MP3DecoderHelix.h:153
  #7  0x400d8ced:0x3fff3ae0 in libhelix::MP3DecoderHelix::decode() at .pio/libdeps/esp32devCOM/libhelix/src/MP3DecoderHelix.h:125
  #8  0x400d8b63:0x3fff3b30 in libhelix::CommonHelix::writeChunk(void const*, unsigned int) at .pio/libdeps/esp32devCOM/libhelix/src/CommonHelix.h:227
  #9  0x401ddc85:0x3fff3b50 in libhelix::CommonHelix::write(void const*, unsigned int) at .pio/libdeps/esp32devCOM/libhelix/src/CommonHelix.h:82
  #10 0x401dd575:0x3fff3b70 in audio_tools::MP3DecoderHelix::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/AudioCodecs/CodecMP3Helix.h:113
  #11 0x400e2481:0x3fff3b90 in audio_tools::MetaDataFilter::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioMetaData/MetaDataFilter.h:64 (discriminator 1)
  #12 0x400e2564:0x3fff3be0 in audio_tools::MetaDataFilterDecoder::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioMetaData/MetaDataFilter.h:207
  #13 0x401dda8f:0x3fff3c00 in audio_tools::EncodedAudioOutput::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/AudioCodecs/AudioEncoded.h:186
      (inlined by) audio_tools::EncodedAudioOutput::write(unsigned char const*, unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/AudioCodecs/AudioEncoded.h:170
  #14 0x400e3a10:0x3fff3c20 in audio_tools::StreamCopyT<unsigned char>::write(unsigned int, unsigned int&) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/StreamCopy.h:397
      (inlined by) audio_tools::StreamCopyT<unsigned char>::write(unsigned int, unsigned int&) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/StreamCopy.h:390
      (inlined by) audio_tools::StreamCopyT<unsigned char>::copyBytes(unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/StreamCopy.h:167
  #15 0x400e3b90:0x3fff3c40 in audio_tools::AudioPlayer::copy(unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioPlayer.h:377
      (inlined by) audio_tools::AudioPlayer::copy(unsigned int) at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioPlayer.h:364
      (inlined by) audio_tools::AudioPlayer::copy() at .pio/libdeps/esp32devCOM/audio-tools/src/AudioTools/CoreAudio/AudioPlayer.h:360
  #16 0x400ecc2f:0x3fff3c60 in MediaPlayer(bool) at src/powadcr.cpp:2078
  #17 0x400fb2cf:0x3fff4b50 in playingFile() at src/powadcr.cpp:2164 (discriminator 13)
  #18 0x400fe16b:0x3fff4c10 in tapeControl() at src/powadcr.cpp:3741 (discriminator 8)
  #19 0x400fee7b:0x3fff4db0 in Task1code(void*) at src/powadcr.cpp:3972

test.zip

[pschatzmann]

My gut feeling is that you might have run out of RAM!
Why would you ever try to allocate a Buffer de 512 KB knowing that you have max 520 KB of available SRAM and the MP3 decoder already uses a lot of it. The default buffer of 1k is more then enough...

Aport for this follow the advice given in this wiki to analyze any errors

[hash6iron]

I don't think so. I have playing an one hour mp3 without any issue. I have observed that it has begun since I use MultiDecoder, but log reports issue in equalizer.h

[pschatzmann]

You forgot to start the ConfigEqualizer3Bands!

[hash6iron]

Yes you are reason, is due to that this sketch is a reduce version of the original, but the problem is not that.

[hash6iron]

Was solved.

Yes the problems seems to point to ConfigEqualizer3Bands initialization. I don't know because worked before, bad but worked. Now, works fine. Thanks for all.