diff options
| author | kma@webrtc.org <kma@webrtc.org@4adac7df-926f-26a2-2b94-8c16560cd09d> | 2012-02-07 17:15:15 +0000 |
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| committer | kma@webrtc.org <kma@webrtc.org@4adac7df-926f-26a2-2b94-8c16560cd09d> | 2012-02-07 17:15:15 +0000 |
| commit | 59f16ec99323cd4c6bc5bb2f21c142406c685e40 (patch) | |
| tree | 654ffeacad0a186cf4cb81204d06c4a606bad87a /third_party_mods | |
| parent | 9d9ad88ba51682d91ed3dade6d711fb26c9073a2 (diff) | |
| download | webrtc-59f16ec99323cd4c6bc5bb2f21c142406c685e40.tar.gz | |
Introduced ARM version of WebRtcSpl_SqrtFloor(). Function cycles reduced by ~ 30% in a real time VOE test in an android device (Nexus-S, ARMv7a).
// Fritz, I added you as a reviewer for the assembly files, just as a warm-up for future storms. :-) The assembly code was from public domain and there's little to touch.
Review URL: https://webrtc-codereview.appspot.com/369017
git-svn-id: http://webrtc.googlecode.com/svn/trunk@1627 4adac7df-926f-26a2-2b94-8c16560cd09d
Diffstat (limited to 'third_party_mods')
| -rw-r--r-- | third_party_mods/sqrt_floor/LICENSE | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/third_party_mods/sqrt_floor/LICENSE b/third_party_mods/sqrt_floor/LICENSE new file mode 100644 index 0000000000..e24dfe781c --- /dev/null +++ b/third_party_mods/sqrt_floor/LICENSE @@ -0,0 +1,26 @@ +The following email record is related to source files spl_sqrt_floor.c +and spl_sqrt_floor.s in trunk/src/common_audio/signal_processing/. + + +From: Wilco Dijkstra <Wilco.Dijkstra@ntlworld.com> +Date: Fri, Jun 24, 2011 at 3:20 AM +Subject: Re: sqrt routine +To: Kevin Ma <kma@google.com> +Hi Kevin, +Thanks for asking. Those routines are public domain (originally posted to +comp.sys.arm a long time ago), so you can use them freely for any purpose. +Cheers, +Wilco + +----- Original Message ----- +From: "Kevin Ma" <kma@google.com> +To: <Wilco.Dijkstra@ntlworld.com> +Sent: Thursday, June 23, 2011 11:44 PM +Subject: Fwd: sqrt routine +Hi Wilco, +I saw your sqrt routine from several web sites, including +http://www.finesse.demon.co.uk/steven/sqrt.html. +Just wonder if there's any copyright information with your Successive +approximation routines, or if I can freely use it for any purpose. +Thanks. +Kevin |