CELT TODO

Open issues

• Reduce waste when splitting at high bit-rate?
• fix start/end energy prediction
• Revert N=1 allocation special case?
• Approximation for delta calculation
• Revisit folding
  • Can we remove the need to fold on split?
  • Should we do L/R folding?
  • Should we fold the side (probably not)?
  • Band-aligned folding?

• Still possible, but probably not a good idea
  • Enable new layout with more HF bands
  • Remove 2-phase stereo?

• Tuning (nothing that really needs fixing, but it's still open)
  • Temporal masking
  • Band layout (spacing)
  • qtheta offset
  • delta allocation
  • fine offset
  • Spreading/folding parameter