Justin Ruggles
10e645e9cb
lavr: handle clipping in the float to s32 conversion
...
We cannot clip to INT_MAX because that value cannot be exactly
represented by a float value and ends up overflowing during conversion
anyway. We need to use a slightly smaller float value, which ends up
with slightly inaccurate results for samples which clip or nearly clip,
but it is close enough. Using doubles as intermediates in the conversion
would be more accurate, but it takes about twice as much time.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-10-13 12:34:34 +02:00
Diego Biurrun
e0c6cce447
x86: Replace checks for CPU extensions and flags by convenience macros
...
This separates code relying on inline from that relying on external
assembly and fixes instances where the coalesced check was incorrect.
2012-09-08 18:18:34 +02:00
Diego Biurrun
17337f54c0
x86: Split inline and external assembly #ifdefs
2012-08-31 01:53:25 +02:00
Diego Biurrun
a886b279a0
x86: cosmetics: Comment some #endifs for better readability
2012-08-30 18:50:33 +02:00
Justin Ruggles
06e751a40f
lavr: x86: optimized 6-channel flt to fltp conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
e07c9705c8
lavr: x86: optimized 2-channel flt to fltp conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
5245c9f3ad
lavr: x86: optimized 6-channel flt to s16p conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
31d0d7181d
lavr: x86: optimized 2-channel flt to s16p conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
6092dafb5a
lavr: x86: optimized 6-channel s16 to fltp conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
91851a7b37
lavr: x86: optimized 2-channel s16 to fltp conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
205ace8843
lavr: x86: optimized 6-channel s16 to s16p conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
8eeffa8ada
lavr: x86: optimized 2-channel s16 to s16p conversion
2012-08-23 20:10:57 -04:00
Justin Ruggles
b66e20d2aa
lavr: x86: optimized 2-channel fltp to flt conversion
2012-08-23 20:10:56 -04:00
Justin Ruggles
d5b4e50c47
lavr: x86: optimized 6-channel fltp to s16 conversion
2012-08-23 20:10:56 -04:00
Justin Ruggles
a58a013980
lavr: x86: optimized 2-channel fltp to s16 conversion
2012-08-23 20:10:56 -04:00
Justin Ruggles
90cc27f813
lavr: x86: optimized 6-channel s16p to flt conversion
2012-08-23 20:10:56 -04:00
Justin Ruggles
46f929adad
lavr: x86: optimized 2-channel s16p to flt conversion
2012-08-23 20:10:56 -04:00
Justin Ruggles
13df7d2d40
lavr: x86: optimized 6-channel s16p to s16 conversion
2012-08-23 20:10:56 -04:00
Justin Ruggles
c0e12535aa
lavr: x86: optimized 2-channel s16p to s16 conversion
2012-08-23 20:10:56 -04:00
Mans Rullgard
a3df4781f4
x86: add colons after labels
...
nasm prints a warning if the colon is missing.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-07 15:20:56 +01:00
Justin Ruggles
e9da9a3111
lavr: x86: improve non-SSE4 version of S16_TO_S32_SX macro
...
Removes a false dependency on existing contents of the 2nd dst register,
giving better performance for OOE.
2012-07-27 14:21:32 -04:00
Justin Ruggles
2f096bb10e
lavr: add x86-optimized mixing functions
...
Adds optimized functions for mixing 3 through 8 input channels to 1 and 2
output channels in fltp or s16p format with flt coeffs.
2012-07-27 11:25:48 -04:00
Ronald S. Bultje
30b45d9c38
x86inc: automatically insert vzeroupper for YMM functions.
2012-07-26 13:43:16 -07:00
Justin Ruggles
0dadf9d1e9
lavr: x86: add missing vzeroupper in ff_mix_1_to_2_fltp_flt()
2012-07-25 15:41:25 -04:00
Justin Ruggles
acd9948e74
lavr: x86: fix ff_conv_fltp_to_flt_6ch function prototypes
...
Changed to match the number of parameters in conv_func_interleave(), which is
how they are called. The change isn't strictly necessary because the 4th
parameter is not used, but the code is clearer if they match.
2012-06-26 12:29:35 -04:00
Justin Ruggles
14a34d90ad
lavr: x86: merge some branches
2012-06-25 13:49:18 -04:00
Justin Ruggles
4e4dd71730
lavr: Add x86-optimized function for flt to s32 conversion
2012-06-18 16:16:59 -04:00
Justin Ruggles
6c63cbfe7a
lavr: Add x86-optimized function for flt to s16 conversion
2012-06-18 16:16:59 -04:00
Justin Ruggles
97ce1ba867
lavr: Add x86-optimized functions for s32 to flt conversion
2012-06-18 16:16:59 -04:00
Justin Ruggles
5904f25b9f
lavr: Add x86-optimized functions for s32 to s16 conversion
2012-06-18 16:16:59 -04:00
Justin Ruggles
d721f67d0a
lavr: Add x86-optimized functions for s16 to flt conversion
2012-06-18 16:16:59 -04:00
Justin Ruggles
1168e29df1
lavr: Add x86-optimized function for s16 to s32 conversion
2012-06-18 16:16:59 -04:00
Justin Ruggles
f61ce90caa
lavr: add x86-optimized functions for mixing 1-to-2 s16p with flt coeffs
2012-06-18 11:24:10 -04:00
Justin Ruggles
29f7490c46
lavr: add x86-optimized functions for mixing 1-to-2 fltp with flt coeffs
2012-06-18 11:24:10 -04:00
Justin Ruggles
b75726cb79
lavr: add x86-optimized function for mixing 2 to 1 s16p with q8 coeffs
2012-05-29 15:33:25 -04:00
Justin Ruggles
c140fb2cbc
lavr: add x86-optimized functions for mixing 2 to 1 s16p with float coeffs
2012-05-29 15:33:18 -04:00
Justin Ruggles
5cc6d5244d
lavr: replace the SSE version of ff_conv_fltp_to_flt_6ch() with SSE4 and AVX
...
The current SSE version is slower than the MMX version on Athlon64 and Sandy
Bridge, but the SSE4 and AVX versions are faster on Sandy Bridge.
2012-05-09 16:17:59 -04:00
Diego Biurrun
dbe6ba55a3
build: cosmetics: Add missing end-of-line backslashes to item lists.
2012-05-07 14:17:40 +02:00
Reimar Döffinger
e5b7d7773a
Fix compilation with YASM/NASM without AVX support.
...
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-05-01 13:37:25 -04:00
Justin Ruggles
c8af852b97
Add libavresample
...
This is a new library for audio sample format, channel layout, and sample rate
conversion.
2012-04-24 21:28:27 -04:00
