--background--

DESCRIPTION

   Reggae muxer for QOA files. Adds QOA 14-byte header and 8-byte end marker,
   then forwards QOA payload (opcodes) from qoi.encoder.

   Intended chain:
     source -> qoa.encoder -> qoa.muxer -> stream (file)

 INPUT format:
   - MMF_AUDIO_QOA (payload stream from qoa.encoder)

 OUTPUT format:
   - MMF_STREAM