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ffplay: use hypot()

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Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-11-22 11:27:22 -05:00
parent 14886bebfe
commit 65440916c1
1 changed files with 3 additions and 3 deletions
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6
ffplay.c
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@ -1115,9 +1115,9 @@ static void video_audio_display(VideoState *s)
* directly access it but it is more than fast enough. */ * directly access it but it is more than fast enough. */
for (y = 0; y < s->height; y++) { for (y = 0; y < s->height; y++) {
double w = 1 / sqrt(nb_freq); double w = 1 / sqrt(nb_freq);
int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1])); int a = sqrt(w * hypot(data[0][2 * y + 0], data[0][2 * y + 1]));
int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0] int b = (nb_display_channels == 2 ) ? sqrt(w * hypot(data[1][2 * y + 0], data[1][2 * y + 1]))
+ data[1][2 * y + 1] * data[1][2 * y + 1])) : a; : a;
a = FFMIN(a, 255); a = FFMIN(a, 255);
b = FFMIN(b, 255); b = FFMIN(b, 255);
fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2); fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);