Jean-Marc Valin
70720a3721
added a shortcut (SHORTCUT) to skip the spreading function in the pitch search
2008-04-19 21:39:26 +10:00
Jean-Marc Valin
91ecf24ebb
encoder pre-emphasis now in 16-bits
2008-04-19 19:44:58 +10:00
Jean-Marc Valin
5369578962
better indexing in exp_rotation()
2008-04-19 12:58:29 +10:00
Jean-Marc Valin
884916fb27
better mdct_backward() indexing
2008-04-19 12:53:43 +10:00
Jean-Marc Valin
f11d6f49f9
optimisation: giving more hints to the compiler about the sizes in
...
find_spectral_pitch()
2008-04-18 23:13:14 +10:00
Jean-Marc Valin
d583b2463c
a few minor optimisations
2008-04-18 22:19:58 +10:00
Jean-Marc Valin
3fe0db172c
removed unneeded variable shifts from alg_quant()
2008-04-18 21:00:06 +10:00
Jean-Marc Valin
784959e8e9
separated the two passes from interp_bits2pulses()
2008-04-18 19:35:34 +10:00
Jean-Marc Valin
05778451e7
optimisation: removed the shifts from the vq_index() inner loop
2008-04-18 19:34:58 +10:00
Jean-Marc Valin
7adca0e64a
optimisation: better indexing/looping in vq_index()
2008-04-18 17:54:52 +10:00
Jean-Marc Valin
f7cec83c59
pseudo-stack no longer checks on every function entry whether it has been
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allocated
2008-04-18 17:29:56 +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
abdfc38837
Saturation in SIG2INT16 using MIN/MAX
2008-04-18 15:57:18 +10:00
Jean-Marc Valin
fa14707713
Removed implicit 32=>16 conversion (changed to EXTRACT16)
2008-04-18 10:59:03 +10:00
Jean-Marc Valin
ed90daef3e
optimisation: Got rid of the 32-bit mul in find_spectral_pitch()
2008-04-18 10:33:06 +10:00
Jean-Marc Valin
eb1f75d198
minor simplification in alg_quant()
2008-04-17 07:50:12 +10:00
Jean-Marc Valin
309d64204d
fixed an issue (lacking parentheses) in the no-op version of BITREV
2008-04-17 07:41:39 +10:00
Jean-Marc Valin
39aad911d9
Made twiddle pointer in mdct more explicit
2008-04-17 07:29:53 +10:00
Jean-Marc Valin
558c50eb3d
optimisation: Making it clear to the compiler that many of the loops in cwrs
...
need to iterate at least once.
2008-04-16 14:15:07 +10:00
Jean-Marc Valin
57e004bf74
More use of CELT_MEMSET
2008-04-16 11:58:48 +10:00
Jean-Marc Valin
7f28f768e7
Make use of CELT_MEMSET() in find_spectral_pitch()
2008-04-16 11:47:24 +10:00
Jean-Marc Valin
b2b71a58e5
Fixed incorrect energy calculation in stereo intra prediction
2008-04-16 10:45:52 +10:00
Jean-Marc Valin
a66c320871
optimisation: reworked intra_prediction() so that yy is computed fully only
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once and then updated for each iteration
2008-04-16 10:43:32 +10:00
Jean-Marc Valin
0a864645f9
optimisation: intra_prediction() uses a 16-bit numerator for the search
2008-04-16 10:29:01 +10:00
Jean-Marc Valin
eac9970c94
added fixed_c6x.h
2008-04-15 21:31:42 +10:00
Jean-Marc Valin
96069fd013
optimisation: managed to avoid dividing in the "full gain" case of alg_quant()
2008-04-15 21:14:18 +10:00
Jean-Marc Valin
684fb28eba
oops, forgot to make the gain a 16-bit var
2008-04-15 18:06:59 +10:00
Jean-Marc Valin
d568303134
optimisation: simplified the "full gain" case of alg_quant() to remove some
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32-bit muls.
2008-04-15 18:04:33 +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
6ea8baed2d
a few loop optimisations.
2008-04-15 08:01:33 +10:00
Jean-Marc Valin
3d152a5de4
optimisation: merged the init loop of vq_quant().
2008-04-15 07:46:48 +10:00
Jean-Marc Valin
3956de98eb
fix minor compilation error/warning
2008-04-12 06:55:39 +10:00
Jean-Marc Valin
9656ca0090
fixed three declaration-after-statement issues
2008-04-11 17:24:31 +10:00
Jean-Marc Valin
766257109e
fixed a few warnings, no real change
2008-04-11 07:23:53 +10:00
Jean-Marc Valin
b18ec0b08d
Reworked the static modes. Now, if all static modes have the same frame size,
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overlap or number of channels, we can pass the hint to the compiler.
2008-04-11 04:07:52 +10:00
Jean-Marc Valin
c1a4c2ec44
some index work (simplifications for dumb compilers) on IMDCT
2008-04-10 18:54:02 +10:00
Jean-Marc Valin
6d3289c718
Added a missing RESTORE_STACK in intra_prediction()
2008-04-10 14:43:59 +10:00
Jean-Marc Valin
df9275b31a
Not all compilers are equal -- making it clearer how the MDCT indexing is done
2008-04-10 14:38:14 +10:00
Jean-Marc Valin
821945d97c
Defining IMUL32 for 32x32=>32 int multiplications and using it in the range
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coder
2008-04-10 13:24:48 +10:00
Jean-Marc Valin
c8e3b67869
Simplified indexing in intra_prediction()
2008-04-10 12:21:26 +10:00
Jean-Marc Valin
381b29c2d2
fixed ordering of the channels in the intra prediction.
2008-04-10 11:00:51 +10:00
Jean-Marc Valin
05e56c4d6c
Defining DISABLE_STEREO now optimises for the mono case
2008-04-10 09:13:05 +10:00
Jean-Marc Valin
15588ad667
Fixed a stereo regression introduced in e28f25f0d1
2008-04-10 09:00:12 +10:00
Jean-Marc Valin
5a7d9b2c62
Fixed rsqrt testcase for float
2008-04-05 14:36:05 +10:00
Timothy B. Terriberry
d883670bf7
Rework CWRS code.
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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
ae76e553db
Changed the rules for using the pulse spreading. It should be used less often
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and mainly in the mid-range.
2008-03-28 17:59:36 +11:00
Jean-Marc Valin
9c50c6bc68
Revert ABS16/32 on C55 -- ended up being slower
2008-03-28 08:45:46 +11:00
Jean-Marc Valin
4fd989e8c7
ABS16 and ABS32 for the C55
2008-03-28 08:31:33 +11:00
Jean-Marc Valin
124d1cdde5
Making the pulsesAtOnce code 16-bit safe.
2008-03-28 00:33:04 +11:00
