CELT TODO: Difference between revisions

From XiphWiki
Jump to navigation Jump to search
No edit summary
m (Add notice that CELT was merged into Opus)
 
(54 intermediate revisions by 3 users not shown)
Line 1: Line 1:
{{Obsolete|The CELT codec has been merged into the IETF [[Opus]] codec and is now obsolete}}
== Open issues ==
== Open issues ==


* Reduce waste when splitting at high bit-rate?
== Post-freeze ==
* fix start/end energy prediction
* VBR waste prevention
* Revert N=1 allocation special case?
* More intelligent VBR decisions
* Approximation for delta calculation
* Denorm prevention
* Revisit folding
* Ogg mapping (including >2ch; LM/ch switching)
** Can we remove the need to fold on split?
 
** Should we do L/R folding?
[[Category:Opus]]
** 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

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)