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3 commits

Author SHA1 Message Date
Michael Sevakis
b5a6517e9d Remove explicit config.h and system.h includes from DSP code. 
Replace with rbcodecconfig.h and platform.h includes. Remove now-
unneeded ones as well.

Change-Id: I6111b71e90bf86d9fe272a7916f2d34a5c6dd724
 2013-05-27 03:23:33 -04:00
Michael Sevakis
a7dee7f447 Introduce new hermite polynomial resampler. 
Uses the Catmull-Rom case of Hermite cubic splines.

Vastly improves the quality and accuracy of audio resampling with a
rather minor additional overhead compared to the previous linear
implementation.

ARM and Coldfire assembly implementations included.

Change-Id: Ic45d84bc66c5b312ef373198297a952167a4be26
Reviewed-on: http://gerrit.rockbox.org/304
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested-by: Michael Sevakis <jethead71@rockbox.org>
 2013-05-16 18:52:21 +02:00
Michael Sevakis
fce81a8a74 Rename all the "lin_resample..." stuff to simply "resample_...". 
Change-Id: I79f44f0dcc1b23b33a5040795220713660a1d18a
 2013-05-07 00:35:46 -04:00
Renamed from lib/rbcodec/dsp/lin_resample.c (Browse further)