Difference between revisions of "CELT TODO"

From XiphWiki
Jump to: navigation, search
Line 4: Line 4:
 
* Stop computing log2Amp() on uninitialized data
 
* Stop computing log2Amp() on uninitialized data
 
* Stereo/mono switching (Greg's patch)
 
* Stereo/mono switching (Greg's patch)
* Make sure we set every unused *bit* (rather than byte) to zero at the end?
 
  
 
== Tuning (still open, but no changes planned) ==
 
== Tuning (still open, but no changes planned) ==

Revision as of 06:27, 26 January 2011

Open issues

  • Reduce waste when splitting at high bit-rate?
  • Stop computing log2Amp() on uninitialized data
  • Stereo/mono switching (Greg's patch)

Tuning (still open, but no changes planned)

  • Temporal masking
  • 3-tap prefilter/postfilter
  • qtheta offset
  • Just in case (probably not needed)
    • delta allocation for non-transient
    • fine offset
    • Spreading/folding parameter
    • Band layout (spacing)

Still possible, but probably not a good idea

  • Enable new layout with more HF bands
  • Remove 2-phase stereo?
  • 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?

Post-freeze

  • Samplerate switching
  • Denorm prevention