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Hi all, This is Linfeng Zhang from Google. I'll work on ARM NEON optimization in the next few months. I'm submitting 2 patches in the following couple of emails, which have the new created celt_fir_neon(). I revised celt_fir_c() to not pass in argument "mem" in Patch 1. If there are concerns to this change, please let me know. Many thanks to your comments. Linfeng Zhang

...les changed, 113 insertions(+), 2 deletions(-) create mode 100644 libspeex/resample_neon.h diff --git a/libspeex/arch.h b/libspeex/arch.h index 3b47ed9..daa72a7 100644 --- a/libspeex/arch.h +++ b/libspeex/arch.h @@ -171,6 +171,7 @@ typedef float spx_word32_t; #define VSHR32(a,shift) (a) #define SATURATE16(x,a) (x) #define SATURATE32(x,a) (x) +#define SATURATE32PSHR(x,shift,a) (x) #define PSHR(a,shift) (a) #define SHR(a,shift) (a) diff --git a/libspeex/fixed_generic.h b/libspeex/fixed_generic.h index 3fb096e..0e012e9 100644 --- a/libspeex/fixed_generic.h +++ b/libspeex/fixed_generic....

I rebased my previous 3 patches to the current master with minor changes. Patches 1 to 3 replace all my previous submitted patches. Patches 4 and 5 are new. Thanks, Linfeng Zhang

From: Jyri Sarha <jsarha at ti.com> I optimized Speex resampler for NEON capable ARM CPUs. The first patch should speed up resampling on any platform that can spare the increased memory usage. It would be nice to have these merged to the master branch. Please let me know if there is anything I can do to help the the merge. The patches have been rebased on top of master branch in

...0 #define VERY_SMALL 1e-15 #define NEG16(x) (-(x)) #define NEG32(x) (-(x)) #define EXTRACT16(x) (x) #define EXTEND32(x) (x) #define SHR16(a,shift) (a) #define SHL16(a,shift) (a) #define SHR32(a,shift) (a) #define SHL32(a,shift) (a) #define PSHR16(a,shift) (a) #define PSHR32(a,shift) (a) #define SATURATE16(x,a) (x) #define SATURATE32(x,a) (x) #define PSHR(a,shift) (a) #define SHR(a,shift) (a) #define SHL(a,shift) (a) #define SATURATE(x,a) (x) #define ADD16(a,b) ((a)+(b)) #define SUB16(a,b) ((a)-(b)) #define ADD32(a,b) ((a)+(b)) #define SUB32(a,b) ((a)-(b)) #define ADD64(a,b) ((a)+...