Displaying 2 results from an estimated 2 matches for "mdct_butterfly_generic".
2014 Sep 10
4
[RFC PATCH v1 0/3] Introducing ARM SIMD Support
libvorbis does not currently have any simd/vectorization.
Following patches add generic framework for simd/vectorization
and on top, add ARM-NEON simd vectorization using intrinsics.
I was able to get over 34% performance improvement on my
Beaglebone Black which is single Cortex-A8 based CPU.
You can find more information on metrics and procedure I used
to measure at
2006 Aug 08
1
Lancer 20060807 is out
...rearrange SSE optimized code in _encodepart.
2006/08/02 Lancer 20060802(test version for memory problem)
Changes:
* fix memory leak bug in _vp_psy_clear.
* replace GetTickCount to timeGetTime for precision.
* mdct_butterfly_first_backward is more pre-calculated now.
* modify SSE3 optimized code in mdct_butterfly_generic.
* stop forced-inlining: couple_lossless_ps, couple_lossless, precomputed_couple_point.
* introduce the lookup tables for fft's coefficient.
* _ve_amp has been optimized with SSE.
* Reexamination of cash control in all of the optimized code.
(Access to some tables seldom referred to is change...