search for: yp0

....fa5098c 100644 --- a/celt/mdct.c +++ b/celt/mdct.c @@ -276,8 +276,8 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala /* Post-rotate and de-shuffle from both ends of the buffer at once to make it in-place. */ { - kiss_fft_scalar * OPUS_RESTRICT yp0 = out+(overlap>>1); - kiss_fft_scalar * OPUS_RESTRICT yp1 = out+(overlap>>1)+N2-2; + kiss_fft_scalar * yp0 = out+(overlap>>1); + kiss_fft_scalar * yp1 = out+(overlap>>1)+N2-2; const kiss_twiddle_scalar *t = &trig[0]; /* Loop to (N4+1)>>...

...pared to the following: diff --git a/celt/mdct.c b/celt/mdct.c index 1634e8e..e490c3b 100644 --- a/celt/mdct.c +++ b/celt/mdct.c @@ -277,7 +277,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala it in-place. */ { kiss_fft_scalar * OPUS_RESTRICT yp0 = out+(overlap>>1); - kiss_fft_scalar * OPUS_RESTRICT yp1 = out+(overlap>>1)+N2-2; + kiss_fft_scalar * yp1 = yp0+N2-2; const kiss_twiddle_scalar *t = &trig[0]; /* Loop to (N4+1)>>1 to handle odd N4. When N4 is odd, the middle pair will be comp...

...b/celt/mdct.c > @@ -276,8 +276,8 @@ void clt_mdct_backward(const mdct_lookup *l, > kiss_fft_scalar *in, kiss_fft_scala > /* Post-rotate and de-shuffle from both ends of the buffer at once to > make > it in-place. */ > { > - kiss_fft_scalar * OPUS_RESTRICT yp0 = out+(overlap>>1); > - kiss_fft_scalar * OPUS_RESTRICT yp1 = out+(overlap>>1)+N2-2; > + kiss_fft_scalar * yp0 = out+(overlap>>1); > + kiss_fft_scalar * yp1 = out+(overlap>>1)+N2-2; > const kiss_twiddle_scalar *t = &trig[0]; >...

Hi, Apologies if this is a known issue, but running make on revision e3187444692195957eb66989622c7b1ad8448b06 fails one of the tests when using fixed point configuration (floating point is ok) on my linux x86. Note that libopus1.1, as extracted from the tar ball, is OK. Specifically, the tests that fail are in celt/tests/test_unit_mdct: nfft=32 inverse=0,snr = 85.341197 nfft=32 inverse=1,snr =

...rmula(s),parametric=s.fs,drop.square=s.fs,normalize=F,data=d, ???????? span=0.4); yp<-predict(l,newdata=d); plot(x,y,pch='+',ylim=c(-3,3),col='red');? # input data points(x,yp,pch='o',col='blue');?????????? # fit of that d0<-d; d0$f1<-d0$f2<-d0$f3<-0; yp0<-predict(l,newdata=d0); points(x,y-f%*%o);???? # spatial distortion lines(x,yp0,pch='+');? # estimate of that op<-sapply(seq(NCOL(f)),function(i){(yp-yp0)[!!f[,i]][1]}); cat("Demo offsets:",o,"\n"); cat("Estimated offsets:",format(op,digits=1),"\n&...

...2*i+1] = yi; + xp1+=2*stride; + xp2-=2*stride; + } + } + + opus_ifft(st, (kiss_fft_cpx *)f, (kiss_fft_cpx*)(out+(overlap>>1)), arch); + + /* Post-rotate and de-shuffle from both ends of the buffer at once to make + it in-place. */ + { + kiss_fft_scalar * yp0 = out+(overlap>>1); + kiss_fft_scalar * yp1 = out+(overlap>>1)+N2-2; + const kiss_twiddle_scalar *t = &trig[0]; + /* Loop to (N4+1)>>1 to handle odd N4. When N4 is odd, the + middle pair will be computed twice. */ + for(i=0;i<(N4+1)>>1;i++)...

...2*i+1] = yi; + xp1+=2*stride; + xp2-=2*stride; + } + } + + opus_ifft(st, (kiss_fft_cpx *)f, (kiss_fft_cpx*)(out+(overlap>>1)), arch); + + /* Post-rotate and de-shuffle from both ends of the buffer at once to make + it in-place. */ + { + kiss_fft_scalar * yp0 = out+(overlap>>1); + kiss_fft_scalar * yp1 = out+(overlap>>1)+N2-2; + const kiss_twiddle_scalar *t = &trig[0]; + /* Loop to (N4+1)>>1 to handle odd N4. When N4 is odd, the + middle pair will be computed twice. */ + for(i=0;i<(N4+1)>>1;i++)...

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

Dear R experts, I have a problem that is a related to the question raised in this earlier post https://stat.ethz.ch/pipermail/r-help/2007-January/124064.html My situation is different in that I have only 2 predictors (coordinates x,y) for local regression but a number of global ("parametric") offsets that I need to consider. Essentially, I have a spatial distortion overlaid over a

...rmula(s),parametric=s.fs,drop.square=s.fs,normalize=F,data=d, ???????? span=0.4); yp<-predict(l,newdata=d); plot(x,y,pch='+',ylim=c(-3,3),col='red');? # input data points(x,yp,pch='o',col='blue');?????????? # fit of that d0<-d; d0$f1<-d0$f2<-d0$f3<-0; yp0<-predict(l,newdata=d0); points(x,y-f%*%o);???? # spatial distortion lines(x,yp0,pch='+');? # estimate of that op<-sapply(seq(NCOL(f)),function(i){(yp-yp0)[!!f[,i]][1]}); cat("Demo offsets:",o,"\n"); cat("Estimated offsets:",format(op,digits=1),"\n&...

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

Hello list. I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without modifications. How did I try it? Created a (non-root) build environment (not a mock ) Installed the kernel.scr.rpm and did a rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee prep-out.log The build failed at the end: Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL Checking