Missing ma_decoder?

[Logickin-Lambda]

After messing around with the gui and felt comfortable with using it, it is time for doing some audio, but seems I have faced some issues on loading .wav files using zaudio.

In the original mini_audio, there is a type called the ma_decoder, and it is used for decoding the incoming .wav files like shown:

// from main:
result = ma_decoder_init_file(argv[1], NULL, &decoder); // where argv[1] is the name of the audio file
if (result != MA_SUCCESS) {
    printf("Could not load file: %s\n", argv[1]);
    return -2;
}

// ... after some device configs
ma_decoder decoder;
deviceConfig.pUserData = &decoder;

// from the data_callback:
ma_decoder* pDecoder = (ma_decoder*)pDevice->pUserData;

We need to load the decoder into the user data and cast it during the audio callback, but in the zaudio version, I don't seem to find anything related the ma_decoder. Has the naming changed or there are alternatives with this type in the low level setup?

[Logickin-Lambda]

After studied the code, it seems that the decoder part of the miniaudio is not exposed for zaudio; thus, I am currently trying to port this part of the library, and hopefully, this could enable some lower level features which is important for audio applications and plugins.

Update:
After taking a deeper look to the header and how zaudio is implemented, seems that the implementation is more complicated than what I thought, where unimplemented type chained after another unimplemented types with many opaque types. I would still trying to port the features because they are crucial for my projects, but I don't think this can be done in a short time since it needs more study on this library.

Update 002:
After studying the coding style and how everything works in the related parts, I seem to have a working Decoder now, but since the testing requires sample files in various format and a callback function is required which I haven't tested, I won't write the test on the zaudio file, but instead on a separated project, doubling as a code example for low-level part of zaudio.

[Logickin-Lambda]

Done! We now have the decoder for the library. Mentioned in the pull request above, the next thing is to port the encoder as well so that not only we can have some proper unit tests without the use of external audio files, but we can also export our generated audio to .wav files for things like DAWs or vst plugins which involving samples.

However, that will be the next chapter for the story, so let me close this issue and open up a new pr once that is ready.