virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-10 06:10:52 +02:00
Code Issues Releases Activity

avfilter/af_dynaudnorm: use M_PI

Browse Source 
The ad-hoc pi constant has a ludicrous number of digits that offer no
value whatsoever. M_PI is more consistent and readable across the
codebase.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde
2015-11-10 22:26:25 -05:00
parent 2db114ec3f
commit 7769e6602d
1 changed files with 1 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libavfilter/af_dynaudnorm.c
View File

@@ -227,8 +227,6 @@ static int cqueue_pop(cqueue *q)
return 0; return 0;
} }
static const double s_pi = 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679;
static void init_gaussian_filter(DynamicAudioNormalizerContext *s) static void init_gaussian_filter(DynamicAudioNormalizerContext *s)
{ {
double total_weight = 0.0; double total_weight = 0.0;
@@ -238,7 +236,7 @@ static void init_gaussian_filter(DynamicAudioNormalizerContext *s)
// Pre-compute constants // Pre-compute constants
const int offset = s->filter_size / 2; const int offset = s->filter_size / 2;
const double c1 = 1.0 / (sigma * sqrt(2.0 * s_pi)); const double c1 = 1.0 / (sigma * sqrt(2.0 * M_PI));
const double c2 = 2.0 * pow(sigma, 2.0); const double c2 = 2.0 * pow(sigma, 2.0);
// Compute weights // Compute weights