Difference between revisions of "CELT TODO"
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== Open issues == | == Open issues == | ||
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* Tuning | * Tuning | ||
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* Transients | * Transients | ||
| − | ** | + | ** Haar/Hadamard |
| − | ** | + | ** Delta adjustment |
| + | ** Can we remove all of the old code? | ||
| + | ** Split below 32-bit | ||
** Partial remixing of short blocks? | ** Partial remixing of short blocks? | ||
* Make split more efficient | * Make split more efficient | ||
| + | ** Support for LN=-1 | ||
* Minimise bits left after PVQ | * Minimise bits left after PVQ | ||
Revision as of 17:20, 20 May 2010
Open issues
- Tuning
- Band layout (spacing)
- Bit allocation
- Main table
- Stereo
- qtheta offset
- fine offset
- energy prediction parameters (means, decay)
- Spreading/folding parameter
- Transients
- Haar/Hadamard
- Delta adjustment
- Can we remove all of the old code?
- Split below 32-bit
- Partial remixing of short blocks?
- Make split more efficient
- Support for LN=-1
- Minimise bits left after PVQ
- Reverse band ordering?
- Fractional pulses?
- Dynamic allocation
- Include a way to deviate from the normal bit allocation?
- Better stereo coupling
- Better support for "intensity stereo"?
Other decisions to make
- Should we use raw bits or not?
- 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)
- Use a min width for ebands that's equal to the number of short blocks?