Carl Eugen Hoyos 于2018年12月17日周一 上午8:29写道：
>
> 2018-12-16 14:19 GMT+01:00, Steven Liu :
> > move the two if condition out of the loop, that can less
> > n-1 times than condition in loop.
>
> Please add some benchmarks to the commit message.
Hi Folks,
I tested the performance of the modify,
before
2018-12-16 14:19 GMT+01:00, Steven Liu :
> move the two if condition out of the loop, that can less
> n-1 times than condition in loop.
Please add some benchmarks to the commit message.
Carl Eugen
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ht
> On Dec 16, 2018, at 21:47, Moritz Barsnick wrote:
>
> On Sun, Dec 16, 2018 at 21:19:17 +0800, Steven Liu wrote:
>> move the two if condition out of the loop, that can less n-1 times than
>> condition
>> in loop.
> [...]
>> k = -split_radix_permutation(i, n, s->inverse) & (n-1);
>
On Sun, Dec 16, 2018 at 21:19:17 +0800, Steven Liu wrote:
> move the two if condition out of the loop, that can less n-1 times than
> condition
> in loop.
[...]
> k = -split_radix_permutation(i, n, s->inverse) & (n-1);
> -if (s->revtab)
> s->revtab[k] = j;
move the two if condition out of the loop, that can less n-1 times than
condition
in loop.
Signed-off-by: Steven Liu
---
libavcodec/fft_template.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/libavcodec/fft_template.c b/libavcodec/fft_template.c
index 762
