libnjb: Codec types

# Codec types

## Defines
#define | NJB_CODEC_MP3 "MP3"
#define | NJB_CODEC_WMA "WMA"
#define | NJB_CODEC_WAV "WAV"
#define | NJB_CODEC_AA "AA"

## Define Documentation

#define NJB_CODEC_AA "AA"

The Audible.com codec

Referenced by songid_pack3().

#define NJB_CODEC_MP3 "MP3"

The MPEG audio level 3 codec

Referenced by NJB_Songid_Frame_New_Codec(), songid_pack3(), and songid_sanity_check().

#define NJB_CODEC_WAV "WAV"

The RIFF waveform codec

Referenced by NJB_Songid_Frame_New_Codec(), songid_pack3(), and songid_sanity_check().

#define NJB_CODEC_WMA "WMA"

The Windows Media Audio codec

Referenced by NJB_Songid_Frame_New_Codec(), songid_pack3(), and songid_sanity_check().