The APIs that have changed are those that take an output pointer and an
input count in the format of "some_read_function(handle, pBuf, count)".

The updated APIs include:
  * mal_decoder_read_pcm_frames()
  * mal_pcm_converter_read()

Some APIs are scheduled to be replaced in a future version so I have
decided not to replace this at this time since it will be a waste of
time to do so.