Difference between revisions of "CELT TODO"

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* Digital silence
 
* Digital silence
 
* Check dynamic range
 
* Check dynamic range
* min pitch is now 15
 
  
 
== Tuning ==
 
== Tuning ==

Revision as of 11:12, 25 January 2011

Open issues

  • Change anti-collapse background noise estimator?
  • Increase thresh a bit?
  • Reduce waste when splitting at high bit-rate?
  • Stop computing log2Amp() on uninitialized data
  • Stereo/mono switching (Greg's patch and more)
  • Digital silence
  • Check dynamic range

Tuning

  • 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