Difference between revisions of "CELT TODO"

From XiphWiki
Jump to: navigation, search
Line 4: Line 4:
 
* fix start/end energy prediction
 
* fix start/end energy prediction
 
* Revert N=1 allocation special case?
 
* Revert N=1 allocation special case?
* Approximation for delta calculation
 
 
* Revisit folding
 
* Revisit folding
 
** Can we remove the need to fold on split?
 
** Can we remove the need to fold on split?

Revision as of 18:49, 12 January 2011

Open issues

  • Reduce waste when splitting at high bit-rate?
  • 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 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