CELT TODO

Open issues

• Enable new layout with more HF bands?
• Prevent errors at very low bit-rates
• Reduce waste when splitting at high bit-rate?
• Remove 2-phase stereo?
• fix start/end energy prediction
• Revert N=1 allocation special case?
• Revisit folding
  • Can we remove the need to fold on split?
  • Should we do L/R splitting?
  • Should we fold the side (probably not)?
  • Band-aligned folding?

• Tuning
  • Band layout (spacing)
  • TF resolution options
  • Bit allocation
    • Main table
    • Stereo
    • qtheta offset (all 3 modes)
    • delta allocation (all 3)
    • fine offset
    • energy prediction parameters (means, decay)
  • Spreading/folding parameter