Jean-Marc Valin
d7291d2430
Further simplifications to comb2pulses() to remove all conditional branches.
2008-04-21 07:53:40 +10:00
Jean-Marc Valin
ba8295241c
optimisation: one less conditional branch in pulse2comb()
2008-04-18 16:58:19 +10:00
Jean-Marc Valin
e6ce0c6a22
optimisation: Removed a bunch of conditional branches from comb2pulse()
2008-04-18 16:46:39 +10:00
Jean-Marc Valin
558c50eb3d
optimisation: Making it clear to the compiler that many of the loops in cwrs
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need to iterate at least once.
2008-04-16 14:15:07 +10:00
Jean-Marc Valin
ed317c94c3
optimisation: another bunch of simplifications to the "simple case" of the
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alg_quant() search.
2008-04-15 17:31:23 +10:00
Jean-Marc Valin
766257109e
fixed a few warnings, no real change
2008-04-11 07:23:53 +10:00
Timothy B. Terriberry
d883670bf7
Rework CWRS code.
...
This eliminates an extra O(nm) lookups on decode, and reduces the rate control
from O(nm^2) to O(nm), in addition to eliminating O(m) lookups on both encode
and decode.
Although the interface is slightly more complex, the internal code is also
simpler.
2008-04-05 14:31:35 +10:00
Jean-Marc Valin
98c86c7885
Trying to clean up celt_ilog2() vs. EC_ILOG a bit.
2008-03-27 08:40:45 +11:00
Jean-Marc Valin
9ce7fbc421
making {next|prev}_cwrs* inline
2008-03-26 23:33:06 +11:00
Jean-Marc Valin
233e317202
optimisation: shaving a few cycles off prev_cwrs* by not computed the values
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we're not going to use.
2008-03-26 15:46:51 +11:00
Jean-Marc Valin
5de868c6d3
A bunch of pointers marked as "restrict" to ease the job of the compiler
2008-03-25 22:38:58 +11:00
Jean-Marc Valin
31b79d1993
Changed definition of VARDECL to make it more flexible. No actual code change.
2008-03-12 17:17:23 +11:00
Jean-Marc Valin
493b38d48f
Better heuristic for deciding when to use the 32-bit version of the cwrs code.
2008-03-11 15:24:07 +11:00
Jean-Marc Valin
8600f69f79
Initial support for a managed stack/scratchpad. Still needs some work.
2008-02-29 15:14:12 +11:00
Jean-Marc Valin
d3b86e5347
cwrs converted to use VARDECL/ALLOC macros
2008-02-20 12:18:41 +11:00
Jean-Marc Valin
02fa913c32
More C89 fixes, making sure to include config.h from all source files.
2008-02-20 12:09:29 +11:00
Jean-Marc Valin
472a5f03c6
Fixed a bunch of warnings
2008-02-19 13:12:32 +11:00
Jean-Marc Valin
dba28a52ce
cwrs.c links to derf's article on pulse vector encoding.
2008-02-18 23:40:43 +11:00
Jean-Marc Valin
0d28aa99c0
Now no divisions required in the cwrs code
2008-02-14 15:02:04 +11:00
Jean-Marc Valin
bf17da60f0
Reduced useless calls to ncwrs64() by half.
2008-02-14 14:18:19 +11:00
Jean-Marc Valin
5fa59954a9
moved pulse [en|de]coding to cwrs.c
2008-02-14 13:50:44 +11:00
Jean-Marc Valin
3134884408
Speeded up cwrsi and icwrs by at least an order of magnitude. Now using
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the recursive definition of ncwrs instead of computing it from scratch
every time.
2008-02-14 11:55:01 +11:00
Jean-Marc Valin
cc4d3dda74
Fixed stereo regression introduced in 05686a5d6e
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also another stereo bug fixed for static-array ncwrs64().
2008-02-13 00:08:29 +11:00
Jean-Marc Valin
846d4e240b
Allowing the quantiser serch to put more than one pulse at one,
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giving a (minor) speedup. Also fixed optional memory-based ncwrs64().
2008-02-12 13:48:48 +11:00
Jean-Marc Valin
7d40730e22
optional fast ncwrs64() implementation (copied from ncwrs) requiring
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statis memory allocation (not enabled by default)
2008-02-12 11:32:20 +11:00
Jean-Marc Valin
abe043f0a1
Moving everything to the same type abstraction (sort of).
2008-01-31 14:26:29 +11:00
Timothy B. Terriberry
71c9bbff02
Updated pulse coding to simpler (slightly faster) code included with
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http://people.xiph.org/~tterribe/notes/cwrs.html
Removed dead code.
2008-01-01 07:18:06 +11:00
Jean-Marc Valin
f8db800c44
Added support for codebooks up to 64 bits.
2007-12-11 14:52:56 +11:00
Timothy B. Terriberry
c4541ae786
Code for converting back and forth between pulse vectors and the correspondig
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VQ index.
2007-12-03 11:51:29 +11:00
