similar to: yet another MDCT question

Hi all, I'm attempting to convert all the pointers to arrays the mdct_backward function so it can be partitioned off for a hardware implementation. Although this code is quite short I'm finding it a little tricky. As it stands, mdct_backward is passed values by reference i.e. void mdct_backward(mdct_lookup *init, DATA_TYPE *in, DATA_TYPE *out) o my modified version starts void

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

Hi, I'm trying to determine how the frequency data that is passed to the MDCT, and output time domain data obtained from the MDCT, is changed when setting #define MDCT_INTEGERIZED For instance, the trig array, for a size 256 window begins 1.000000 0.000000 0.998795 -0.049068 0.995185 -0.098017 if INTEGERIZED is set, then it begins 16384 0 16364 -803 16305 -1605 which is simply a left shift

On Mon, Oct 10, 2016 at 5:02 PM, Hal Finkel <hfinkel at anl.gov> wrote: > ----- Original Message ----- >> From: "Sebastian Pop" <sebpop.llvm at gmail.com> >> To: "Hal Finkel" <hfinkel at anl.gov> >> Cc: "Sebastian Paul Pop" <s.pop at samsung.com>, "llvm-dev" <llvm-dev at lists.llvm.org>, "Matthias

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

On Tue, Oct 11, 2016 at 10:39 PM, Sebastian Pop <sebpop.llvm at gmail.com> wrote: > On Tue, Oct 11, 2016 at 10:20 PM, Hal Finkel <hfinkel at anl.gov> wrote: >> ----- Original Message ----- >>> From: "Renato Golin" <renato.golin at linaro.org> >>> To: "Sebastian Pop" <sebpop.llvm at gmail.com> >>> Cc: "Hal

I have a person has many questions through person_questions. I have an extra column in the join table for the answer. The section below works for a new submit but when I edit I get 3 each with the first 2 of each selected tand the third not so I get 6 check boxes some selected some not. Is there a way to get this to work properly os just the questions in the db show up once each with the

Hi, I would need some help to fix polybench/symm: void kernel_symm(int ni, int nj, DATA_TYPE alpha, DATA_TYPE beta, DATA_TYPE POLYBENCH_2D(C,NI,NJ,ni,nj), DATA_TYPE POLYBENCH_2D(A,NJ,NJ,nj,nj), DATA_TYPE POLYBENCH_2D(B,NI,NJ,ni,nj)) { int i, j, k; DATA_TYPE acc; /* C := alpha*A*B + beta*C, A is symetric */ for (i = 0; i < _PB_NI; i++) for (j = 0; j < _PB_NJ; j++) {

libswfdec/swfdec_loader.c | 91 +++++++++++++++++++++++++++++++++++-- libswfdec/swfdec_loader.h | 13 +++++ libswfdec/swfdec_loader_internal.h | 2 libswfdec/swfdec_net_stream.c | 1 libswfdec/swfdec_root_movie.c | 4 + libswfdec/swfdec_xml.c | 9 +-- 6 files changed, 111 insertions(+), 9 deletions(-) New commits: diff-tree

Is anybody interested in cleanly separating encode and decode in vorbis? I'm trying to take a stab at it myself from the head of cvs as of this morning, but it looks like a lot of files contain both encode-only and decode-only functions. An obvious one is mdct.c, which contains mdct_forward and mdct_backward (which isn't that big of a deal, since both are pretty well-contained, but it

As some of you know, I'm creating a hardware MDCT core. At the moment I'm working out the best way to create a lookup table for the trig values, as set up in mdct_init: /* trig lookups... */ for(i=0;i<n/4;i++){ T[i*2]=FLOAT_CONV(cos((M_PI/n)*(4*i))); T[i*2+1]=FLOAT_CONV(-sin((M_PI/n)*(4*i))); T[n2+i*2]=FLOAT_CONV(cos((M_PI/(2*n))*(2*i+1)));

----- Original Message ----- > From: "Renato Golin" <renato.golin at linaro.org> > To: "Sebastian Pop" <sebpop.llvm at gmail.com> > Cc: "Hal Finkel" <hfinkel at anl.gov>, "Sebastian Paul Pop" <s.pop at samsung.com>, "llvm-dev" <llvm-dev at lists.llvm.org>, > "Matthias Braun" <matze at

After a few experiments, I found that both alternatives are very similar, and 2~5% slower compared 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 =

Good catch! I think gcc is just unable to make use of restrict for anything useful. Apparently your compiler does, so could you benchmark both patches below and see if it makes a difference in terms of speed. If it's worth it, I can keep the restrict and add the odd case handling, but if not I'll just remove the restrict. Thanks, Jean-Marc On 21/02/14 05:54 PM, Marcello Caramma

I tracked down the bug to an incorrect use of restrict. I would not consider this a compiler bug: we are lying to the optimizer by telling it that a pointer is restrict when in fact it isn't. This can be fixed like so: diff --git a/celt/mdct.c b/celt/mdct.c index 1634e8e..fa5098c 100644 --- a/celt/mdct.c +++ b/celt/mdct.c @@ -276,8 +276,8 @@ void clt_mdct_backward(const mdct_lookup *l,

Hello, I discovered SAGA, an interesting free GIS, a few days ago and now, I would like to use it from within R 2.6.2 using the RSAGA package. I read the documentation for this package and thought that I understood it correctly for trying to call some of the SAGA modules. For getting the information on the usage of and arguments required by the SAGA command line "Import Binary Raw

development.log contains quite a few SELECTS on system tables like COLUMNS. Wouldn''t it be more efficient to cache this info? I''m also wondering about strings like "[4;35;1m". What''s their purpose and is it possible to get rid of them? They look like screen coordinates and makes no sense in a text file. Christer Processing ReportController#create (for

Since both UART driver codes on Allwinner A31, OMAP5 and x86 would use these definitions, we refactor the codes into a separated header to avoid unnecessary duplication. Signed-off-by: Chen Baozi <baozich@gmail.com> --- xen/drivers/char/ns16550.c | 71 +--------------------------- xen/include/xen/ns16550-uart.h | 104 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 105

I just installed Debian on my PowerBook G4 12", but my X server refuses the start. I've appended my Xorg.log and xorg.conf. This is with a Debian testing system with the following relevant packages: # dpkg -l '*nouveau' 'drm*' 'xserver-xorg' Desired=Unknown/Install/Remove/Purge/Hold |