search for: kiss_fft_cfg

? hi all, i am using the Acoustic Echo Cancellation from "Speex 1.1.12 version" in my VOIP application. Is it that the frame length to be chosen should always be 20ms or can i have flexibility in chosing the frame lenght? on what parameters does the frame length choise depends? thank you all, Shri. -------------- next part -------------- An HTML attachment was scrubbed... URL:

...eex_echo_cancel until goes into infinite loop: speex_echo_cancel() | spx_fft | kiss_fftr | kiss_fft | kiss_fft_stride | kf_work Function kf_work looks like: static void kf_work(kiss_fft_cpx * Fout, const kiss_fft_cpx * f, const size_t fstride, int in_stride, int * factors, const kiss_fft_cfg st) { kiss_fft_cpx * Fout_beg=Fout; const int p=*factors++; // the radix const int m=*factors++; // stage's fft length/p const kiss_fft_cpx * Fout_end = Fout + p*m; if(m==1) { do { *Fout = *f; f += fstride*in_stride; } while(++Fout != Fout_end ); }...

...FACTORS]; const opus_int16 *bitrev; const kiss_twiddle_cpx *twiddles; + void *priv; /* Used by arch specfic optimizations */ } kiss_fft_state; +#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10) +#include "arm/fft_arm.h" +#endif + /*typedef struct kiss_fft_state* kiss_fft_cfg;*/ /** @@ -128,7 +135,7 @@ kiss_fft_state *opus_fft_alloc(int nfft,void * mem,size_t * lenmem); * Note that each element is complex and can be accessed like f[k].r and f[k].i * */ -void opus_fft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout); +void opus_fft_c(cons...

Hello opus-dev, I've been cooking up this patchset to integrate NE10 library into opus. Current patchset focuses on encode use case mainly effecting performance of clt_mdct_forward() and opus_fft() (for float only) Glad to report the following on Encode use case: (Measured on my Beaglebone Black Cortex-A8 board) - Performance improvement for encode use case ~= 12.34% (Based on time -p

...opus_int16 factors[2*MAXFACTORS]; const opus_int16 *bitrev; const kiss_twiddle_cpx *twiddles; + arch_fft_state *arch_fft; } kiss_fft_state; +#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10) +#include "arm/fft_arm.h" +#endif + /*typedef struct kiss_fft_state* kiss_fft_cfg;*/ /** @@ -114,9 +125,9 @@ typedef struct kiss_fft_state{ * buffer size in *lenmem. * */ -kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_fft_state *base); +kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_...

...opus_int16 factors[2*MAXFACTORS]; const opus_int16 *bitrev; const kiss_twiddle_cpx *twiddles; + arch_fft_state *arch_fft; } kiss_fft_state; +#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10) +#include "arm/fft_arm.h" +#endif + /*typedef struct kiss_fft_state* kiss_fft_cfg;*/ /** @@ -114,9 +125,9 @@ typedef struct kiss_fft_state{ * buffer size in *lenmem. * */ -kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_fft_state *base); +kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_...

...CTORS]; const opus_int16 *bitrev; const kiss_twiddle_cpx *twiddles; +#ifndef FIXED_POINT + arch_fft_state *arch_fft; +#endif } kiss_fft_state; +#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10) +#include "arm/fft_arm.h" +#endif + /*typedef struct kiss_fft_state* kiss_fft_cfg;*/ /** @@ -114,9 +127,9 @@ typedef struct kiss_fft_state{ * buffer size in *lenmem. * */ -kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_fft_state *base); +kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_...

Changes from RFC PATCH v3 - Just rebased on tip - For all else, please see notes from RFC PATCH v3 at http://lists.xiph.org/pipermail/opus/2015-March/002902.html - latest wip opus tree/branch https://git.linaro.org/people/viswanath.puttagunta/Ne10.git branch: rfcv4_final_fft_ne10 Viswanath Puttagunta (1): armv7(float): Optimize encode usecase using NE10 library Makefile.am

Changes from RFC PATCH v1: - passing arch parameter explicitly - reduced stack usage by ~3.5K by using scaled NE10 fft version - moved all optimization array functions to arm_celt_map.c - Other cleanups pointed out by Timothy Phil, As you mentioned earlier, could you please address all compile and linker errors/warnings coming out of Ne10 library? You can find my working Ne10 repo at [1] You

Changes from RFC PATCH v2 - fixed compile issue when just compiling for --enable-intrinsics for ARMv7 without NE10 - Notes for NE10: - All compile/link warnings are now in upstream NE10 - Only patch pending upstream in NE10 is the one that needs to add -funsafe-math-optimizations for ARMv7 targets. - Phil Wang @ ARM is working on getting this fixed. - Note that even without

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]

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

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