Displaying 2 results from an estimated 2 matches for "azanelli".
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azanella
2013 Jun 11
0
Bug fix in celt_lpc.c and some xcorr_kernel, optimizations
...Bug fix in celt_lpc.c and some xcorr_kernel
> optimizations
> To:<opus at xiph.org>
> Message-ID:<51B6D253.9030505 at parrot.com>
> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
>
> Hi,
>
> I compared C version, John's versions and azanelli's version.
>
> I encoded a music file of 247 seconds at an average bitrate of 100kbps
> on a Cortex-A8. Results are:
> - With xcorr_kernel_c(): 26.45s to encode
> - With xcorr_kernel_neon_john1(): 24.86s to encode (~6%)
> - With xcorr_kernel_neon_john2(): 24.4s to encode (~7.5...
2013 Jun 07
1
Bug fix in celt_lpc.c and some xcorr_kernel optimizations
Unfortunately I don't have a setup that lets me easily profile ARM code,
so I really can't tell which method is faster (though I suspect Mr.
Zanelli's code is). Let me offer up another intrinsic version of the
NEON xcorr_kernel that is almost identical to the SSE version, and more
in line with Mr. Zanelli's code:
static inline void xcorr_kernel_neon(const opus_val16 *x, const