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# make make all-recursive make[1]: Entering directory `/tmp/celt-0.7.0' Making all in libcelt make[2]: Entering directory `/tmp/celt-0.7.0/libcelt' /bin/sh ../libtool --tag=CC --mode=compile gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I.. -s -O3 -march=i686 -fvisibility=hidden -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses

Create the fixed-point intrinsics optimization celt_fir_neon() for ARM NEON. Create test tests/test_unit_optimization to unit test the optimization. --- .gitignore | 1 + Makefile.am | 39 ++++- celt/arm/arm_celt_map.c | 17 +++ celt/arm/celt_lpc_arm.h | 65 ++++++++ celt/arm/celt_lpc_neon_intr.c

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

Enables existing neon intrinsic optimizations to work on aarch64 target. Signed-off-by: Viswanath Puttagunta <viswanath.puttagunta at linaro.org> --- Makefile.am | 4 +- celt/arm/arm_celt_map.c | 4 +- celt/arm/celt_ne10_fft.c | 2 + celt/arm/celt_ne10_mdct.c | 3 ++ celt/arm/pitch_arm.h | 2 +- celt/dump_modes/Makefile | 2

Hello All, I extended the libNE10 optimizations for float towards mdct_backwards/opus_ifft. I am able to get about 14.26% improvement for Decode use case now on my Beaglebone Black. Please see [1] for measurements. Questions 1. Since this patch needs to go in after Encode [2] patch) should I submit this as patch series? 2. Since Jonathan Lennox posted intrinsics cleanup [3] patch, should

Hi All, Since I continue to base my work on top of Jonathan's patch, and my previous Ne10 fft/ifft/mdct_forward/backward patches, I thought it would be better to just post all new patches as a patch series. Please let me know if anyone disagrees with this approach. You can see wip branch of all latest patches at https://git.linaro.org/people/viswanath.puttagunta/opus.git Branch:

Hi Timothy, As I mentioned earlier [1], I now fixed compile issues with fixed point and resubmitting the patch. I also have new patch that does intrinsics optimizations for celt_pitch_xcorr targetting aarch64. You can find my latest work-in-progress branch at [2] For reference, you can use the Ne10 pre-built libraries at [3] Note that I am working with Phil at ARM to get my patch at [4]

Thanks to Jean-Marc and Tim explaining 'git rebase -i' to me, I've factored my reorganization of the Opus Intrinsics configury into a number of hopefully more comprehensible (and thus more reviewable) pieces. This applies to the current tip of Opus Master in git. Viswanath's Ne10 changes require some slight modification to apply on top of these patches, but nothing major.

Hi All, As per Timothy's suggestion, disabling mdct_forward for fixed point. Only effects armv7,armv8: Extend fixed fft NE10 optimizations to mdct Rest of patches are same as in [1] For reference, latest wip code for opus is at [2] Still working with NE10 team at ARM to get corner cases of mdct_forward. Will update with another patch when issue in NE10 gets fixed. Regards, Vish [1]:

Hi All, Changes from RFC v2 [1] armv7,armv8: Extend fixed fft NE10 optimizations to mdct - Overflow issue fixed by Phil at ARM. Ne10 wip at [2]. Should be upstream soon. - So, re-enabled using fixed fft for mdct_forward which was disabled in RFCv2 armv7,armv8: Optimize fixed point fft using NE10 library - Thanks to Jonathan Lennox, fixed some build fixes on iOS and some copy-paste errors Rest

Optimize opus decode (float only) use case using ARM NE10. Mainly effects opus_ifft and ctl_mdct_backward and related functions. Work based on previous Encode optimization using ARM NE10 library. TBD: Add commit id of upstream Encode NE10 optimization patch so that users have reference of how to enable this optimization Signed-off-by: Viswanath Puttagunta <viswanath.puttagunta at

Optimize opus decode (float only) use case using ARM NE10. Mainly effects opus_ifft and ctl_mdct_backward and related functions. Work based on previous Encode optimization using ARM NE10 library. TBD: Add commit id of upstream Encode NE10 optimization patch so that users have reference of how to enable this optimization Signed-off-by: Viswanath Puttagunta <viswanath.puttagunta at

Hello Timothy / Jean-Marc / opus-dev, This patch series is follow up on work I posted on [1]. In addition to what was posted on [1], this patch series mainly integrates Fixed point FFT implementations in NE10 library into opus. You can view my opus wip code at [2]. Note that while I found some issues both with the NE10 library(fixed fft) and with Linaro toolchain (armv8 intrinsics), the work

--- win32/VS2015/opus.vcxproj | 2 ++ win32/VS2015/opus.vcxproj.filters | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/win32/VS2015/opus.vcxproj b/win32/VS2015/opus.vcxproj index d9aaa03..f55ea37 100644 --- a/win32/VS2015/opus.vcxproj +++ b/win32/VS2015/opus.vcxproj @@ -852,6 +852,7 @@ <ClInclude Include="..\..\celt\vq.h" /> <ClInclude

The attached patch cleans up Opus's x86 intrinsics configury. It: * Makes ?enable-intrinsics work with clang and other non-GCC compilers * Enables RTCD for the floating-point-mode SSE code in Celt. * Disables use of RTCD in cases where the compiler targets an instruction set by default. * Enables the SSE4.1 Silk optimizations that apply to the common parts of Silk when Opus is built in

Hello opus-dev, Can we please have review on RFCv2? We have quite a few optimizations (Eg: ifft/mdct_backwards, fixed point fft/ifft mdct_forward/backward etc) that are in my pipeline that depend on this patch series being accepted. Regards, Vish On 4 February 2015 at 12:21, Viswanath Puttagunta <viswanath.puttagunta at linaro.org> wrote: > Changes from RFC PATCH v1: > - passing

Should call celt_inner_prod(). --- celt/bands.c | 7 ++++--- celt/bands.h | 2 +- celt/celt_encoder.c | 6 +++--- celt/pitch.c | 2 +- src/opus_multistream_encoder.c | 2 +- 5 files changed, 10 insertions(+), 9 deletions(-) diff --git a/celt/bands.c b/celt/bands.c index bbe8a4c..1ab24aa 100644 --- a/celt/bands.c +++ b/celt/bands.c

Optimize celt_pitch_xcorr function (for floating point) using ARM NEON intrinsics for SoCs that have NEON VFP unit. As initial step, targeting ARMv7 NEON (VFP3+) based SoCs. To enable this optimization, use --enable-arm-neon-intrinsics configure option. This flag is not enabled by default. Compile time and runtime checks are also supported to make sure this optimization is only enabled when the

From: Jonathan Lennox <jonathan at vidyo.com> * Makes ?enable-intrinsics work with clang and other non-GCC compilers * Enables RTCD for the floating-point-mode SSE code in Celt. * Disables use of RTCD in cases where the compiler targets an instruction set by default. * Enables the SSE4.1 Silk optimizations that apply to the common parts of Silk when Opus is built in floating-point mode, not

From: Jonathan Lennox <jonathan at vidyo.com> * Makes ?enable-intrinsics work with clang and other non-GCC compilers * Enables RTCD for the floating-point-mode SSE code in Celt. * Disables use of RTCD in cases where the compiler targets an instruction set by default. * Enables the SSE4.1 Silk optimizations that apply to the common parts of Silk when Opus is built in floating-point mode, not