With minor fixes

Barely tested

Uses a 5ms redundant CELT frame embedded into the SILK or hybrid
packet to handle the switching. It's still possible to use the
PLC-based method when no redundant packet is included.

Moves all the delay compensation back into the encoder only

Uses the PLC to prevent glitches

Timothy B. Terriberry authored 14 years ago and Jean-Marc Valin committed 14 years ago

The byte buffer is now part of the range coder struct itself, and
 rangeenc.c and rangedec.c have gone away.

Also a CELT update