2001-06-05  Erik de Castro Lopo  <erikd@mega-nerd.com>	* g72x.c	Added {} in function update () to prevent 'ambiguous else' warning messages.2000-07-14  Erik de Castro Lopo  <erikd@mega-nerd.com>	* g72x.c	Modified g72x_init_state () to fit in with the new structure of the code.	Implemented g72x_encode_block () and g72x_decode_block ().2000-07-12  Erik de Castro Lopo  <erikd@mega-nerd.com>    * g72x.h    Moved nearly all definitions and function prototypes from this file have been     moved to private.h.    Added an enum defining the 4 different G72x ADPCM codecs.    Added new function prototypes to define a cleaner interface to the encoder     and decoder. This new interface also allows samples to be processed in blocks    rather than on a sample by sample basis like the original code.        * private.h    Added prototypes moved from g72x.h.    Changed struct g72x_state to a typedef struct { .. } G72x_PRIVATE.    Added fields to G72x_PRIVATE required for working on blocks of samples.2000-06-07  Erik de Castro Lopo  <erikd@mega-nerd.com>    * g72x.c    Fixed all compiler warnings.    Removed functions tandem_adjust() which is not required by libsndfile.        * g721.c    Fixed all compiler warnings.    Removed functions tandem_adjust_alaw() and tandem_adjust_ulaw () which are not     required by libsndfile.    Removed second parameter to g721_encoder () which is not required.    * g72x.h    Removed in_coding and out_coding parameters from all functions. These allowed    g72x encoding/decoding to/from A-law or u-law and are not required by libsndfile.    Removed unneeded defines for A-law, u-law and linear encoding.    * g723_16.c    Removed second parameter (in_coding) for g723_16_encoder().        Removed second parameter (out_coding) for g723_16_decoder().        * private.h    New file containing prototypes and tyepdefs private to G72x code.