Compile error with Pi Pico

[4rnoP]

Hi,
I'm trying to use this library on my Pi Pico with Arduino-pico, but it doesn't compile.
Is it supposed to be used with another framework/core ?

The errors are the following:

pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:50:15: error: expected primary-expression before '.' token
   50 |       if (!I2S.setBCLK(cfg.pin_bck)){
      |               ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:54:15: error: expected primary-expression before '.' token
   54 |       if (!I2S.setDOUT(cfg.pin_data)){
      |               ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:73:15: error: expected primary-expression before '.' token
   73 |       if (!I2S.begin(rate)){
      |               ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h: In member function 'void audio_tools::I2SBasePIO::end()':
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:82:10: error: expected unqualified-id before '.' token
   82 |       I2S.end();
      |          ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h: In member function 'size_t audio_tools::I2SBasePIO::writeBytes(const void*, size_t)':
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:104:21: error: expected primary-expression before '.' token
  104 |         result = I2S.write((const uint8_t*)buffer, size_bytes*2)*2;
      |                     ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:106:21: error: expected primary-expression before '.' token
  106 |         result = I2S.write((const uint8_t*)src, size_bytes)*4;
      |                     ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h: In member function 'int audio_tools::I2SBasePIO::availableForWrite()':
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:121:21: error: expected primary-expression before '.' token
  121 |         result = I2S.availableForWrite()/2*2;
      |                     ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:126:21: error: expected primary-expression before '.' token
  126 |         result = I2S.availableForWrite()/4*4;
      |                     ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h: In member function 'void audio_tools::I2SBasePIO::flush()':
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:139:17: error: expected primary-expression before '.' token
  139 |       return I2S.flush();
      |                 ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h: In member function 'void audio_tools::I2SBasePIO::writeSample(int16_t)':
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:147:26: error: expected primary-expression before '.' token
  147 |         int written = I2S.write(sample);
      |                          ^
.pio/libdeps/pico/audio-tools/src/AudioI2S/I2SRP2040.h:151:24: error: expected primary-expression before '.' token
  151 |           written = I2S.write(sample);
      |                        ^

[pschatzmann]

It seems that that this is not working any more.
I need to investigate what went wrong...

[pschatzmann]

I committed some corrections which should resolve the compile errors.
For the MBED version you will need https://github.com/pschatzmann/rp2040-i2s