ESP32: When calling destructor after stop, and then create a new object, then an error is shown "I2S: register I2S object to platform failed" because i2s_driver_uninstall had not been called.
ESP8266 : i2s_end is not called when stopping, but i2sOn is false, resulting in new call i2s_rxtx_begin
Fix examples to build on RP2040
Clean up generator warnings
No SPDIF on RP2040 (yet)
Add back C sources for AAC on ARM
No WiFi streaming on RP2040
No webradio on RP2040
No talking clock (NTP) on RP2040 either
The I2S subsystem was rewritten in the RP2040 core V2.0, so update to
use the new object and calls.
Also clean up some code warnings and remove SPIFFS from the RP2040\
Updated code to correctly call the parent classes constructor for the RP2040.
Changed the code for the RP2040 to correctly call the parent classes constructor.
* Fix a tricky bug that causes delays in playback
... this bug was already present in stellaplayer. Obviously "effectNumber" must be checked, because "effectParameterX" just holds the "upper nibble" of effectParameter
* fix for issue #474
- do channel mixing in 32bit, to avoid noise from over/underflow
- write audio output as "signed int" (not unsigned)
- add int16 saturation check ("clipping")
* avoid crash when MOD file has to many CHANNELS
- avoid guru meditation, by logging an error and refusing playback in case MOD.numberOfChannels > CHANNELS
- correct small typo
* internal DAC: avoid possible overflow in conversion int16 -> uint16
* update constants
.. we can do 16bit and 8 channels, so let's do it ;-)
This adds some debugging code to better understand what is going on inside the mixer code (AudioGeneratorMOD::GetSample). And it also prints out some usefull information from the MOD file.
Only active when do_MIXER_DEBUG is defined.
* MOD generator: 12 bits of "real" resolution (instead of 10)
With this change, we gain 2 additional bits of "real resolution" from the sample interpolation step.
Still need some testing to be sure that nothing get "lost" at the same time.
* limit to 4 channels on ESP8266
As discussed in https://github.com/earlephilhower/ESP8266Audio/pull/479#issuecomment-1007708703
Fixes#474
This bug was already present in stellaplayer. Obviously "effectNumber" must be checked, because "effectParameterX" just holds the "upper nibble" of effectParameter
- do channel mixing in 32bit, to avoid noise from over/underflow
- write audio output as "signed int" (not unsigned)
- add int16 saturation check ("clipping")
* avoid crash when MOD file has to many CHANNELS
- avoid guru meditation, by logging an error and refusing playback in case MOD.numberOfChannels > CHANNELS
* Update AudioOutputI2S.cpp
* Update AudioOutputSPDIF.cpp
* Fix PDM & DAC mode ESP32
The code for enabling compatibility with ESP32C3 had broken DAC builtin and PDM mode on ESP32. This should fix it again
* Update AudioOutputI2S.cpp
ChuckMash