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Diffstat (limited to 'spectrogram.c')
-rw-r--r--spectrogram.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/spectrogram.c b/spectrogram.c
index 78d8a3e..42b8308 100644
--- a/spectrogram.c
+++ b/spectrogram.c
@@ -243,6 +243,7 @@ main(int argc, char **argv)
double *left, *right;
double *hamming;
+ float scala = 1.0;
int16_t *buffer;
size_t bufsz;
@@ -358,7 +359,7 @@ main(int argc, char **argv)
} while (done < bufsz);
done -= bufsz;
- dofft(fft, buffer, left, right, delta, hamming);
+ dofft(fft, buffer, left, right, delta, hamming, scala);
draw(left, right, ssize, resolution);
while (XPending(dsp)) {
@@ -368,7 +369,21 @@ main(int argc, char **argv)
switch (ev.type) {
case KeyPress:
- die = XLookupKeysym(&ev.xkey, 0) == XK_q;
+ switch (XLookupKeysym(&ev.xkey, 0)) {
+ case XK_q:
+ die = 1;
+ break;
+ case XK_KP_Add:
+ scala *= 2;
+ warnx("inc scala: %f", scala);
+ break;
+ case XK_KP_Subtract:
+ scala /= 2;
+ warnx("dec scala: %f", scala);
+ break;
+ default:
+ break;
+ }
break;
case ClientMessage:
die = *ev.xclient.data.l == delwin;