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5 Commits

Author SHA1 Message Date
Christophe Gisquet 87ec849fe9 dcadec: remove scaling in lfe_interpolation_fir 
The scaling factor is constant so it is faster to scale the
FIR coefficients in the tables during compilation.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-28 13:00:47 +01:00
Christophe Gisquet 5fdbfcb5b7 dcadsp: split lfe_dir cases 
The x86 runs short on registers because numerous elements are not static.
In addition, splitting them allows more optimized code, at least for x86.

Arm asm changes by Janne Grunau.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2014-02-07 22:54:18 +01:00
Martin Storsjö 69e6702c01 arm: Mangle external symbols properly in new vfp assembly files 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-07-22 14:48:30 +03:00
Ben Avison ff30d12159 arm: Add VFP-accelerated version of qmf_32_subbands 
Before           After
               Mean    StdDev   Mean    StdDev  Change
This function   1323.0  98.0      746.2  60.6   +77.3%
Overall        15400.0 336.4    14147.5 288.4    +8.9%

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-07-22 10:15:44 +03:00
Martin Storsjö ba6836c966 arm: Add VFP-accelerated version of dca_lfe_fir 
Before           After
               Mean    StdDev   Mean    StdDev  Change
This function    868.2  33.5      436.0  27.0   +99.1%
Overall        15973.0 223.2    15577.5  83.2    +2.5%

Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-07-22 10:15:39 +03:00