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Andree Buschmann dceec09092 opus: speed up comb_filter
Skip expensive multiply-accumulate loop when gains are 0 and
just copy using memcpy if soure and destination are not the same

Speeds up decoding of a 64kbps test file by 6MHz on h300 (cf)
7MHz on c200 (pp) and 6MHz on fuzev1 (amsv1)

Change-Id: Ibbc9ddfd45a9ac661467b1327b8c67761924fb8b
Signed-off-by: Nils Wallménius <nils@rockbox.org>
2012-10-06 14:25:20 +02:00
..
arm_support build system: unify/simplify library handling a bit. 2012-03-26 22:27:40 +02:00
libsetjmp build system: unify/simplify library handling a bit. 2012-03-26 22:27:40 +02:00
rbcodec opus: speed up comb_filter 2012-10-06 14:25:20 +02:00
skin_parser skin_engine: Support percentages for viewport positioning 2012-07-29 04:24:38 +02:00
tlsf tlsf: move to /lib (it's also used by plugins). 2012-03-28 23:02:39 +02:00
unwarminder unwarminder: make SP and PC visible on smaller screens 2012-09-05 08:53:48 +02:00