CELT TODO: Difference between revisions

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m (Add notice that CELT was merged into Opus)
 
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{{Obsolete|The CELT codec has been merged into the IETF [[Opus]] codec and is now obsolete}}
== Open issues ==
== Open issues ==


* Spreading/folding
== Post-freeze ==
** Uniform quantisation
* VBR waste prevention
** Control over the amount of spreading/folding introduced
* More intelligent VBR decisions
** Make it have the same shape as the rest of the spectrum
* Denorm prevention
* Ogg mapping (including >2ch; LM/ch switching)


* Tuning
[[Category:Opus]]
** Band layout (spacing)
** Bit allocation
** Spreading/folding parameter
** Stereo bit allocation
 
== Other decisions to make ==
* Should we use raw bits or now?
* What should we do about remaining bits after the last PVQ?
** more fine energy?
** encode bands backward?
** allow "fractional pulses"
* Include a configuration packet for more flexibility? (probably not)
 
 
== "Research topics" ==
* Dynamic allocation
* Better stereo coupling
* Investigate other transient algorithms
** Energy weighting pre- or post-normalization
** Include energy shape

Latest revision as of 05:31, 23 June 2016

Open issues

Post-freeze

  • VBR waste prevention
  • More intelligent VBR decisions
  • Denorm prevention
  • Ogg mapping (including >2ch; LM/ch switching)