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videoframe-audiolevel: Fix possible division by zero

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In update_rms_from_buffer(), division by "frames" wasn't checking whether
"frames" is zero.

CID 1341519.

https://bugzilla.gnome.org/show_bug.cgi?id=759443
This commit is contained in:
Vivia Nikolaidou 2015-12-14 13:43:10 +02:00 committed by Sebastian Dröge
parent 0b5387b96c
commit dc9cf44697
1 changed files with 4 additions and 2 deletions
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6
gst/videoframe_audiolevel/gstvideoframe-audiolevel.c
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@ -495,9 +495,11 @@ update_rms_from_buffer (GstVideoFrameAudioLevel * self, GstBuffer * inbuf)
g_value_init (&v, G_TYPE_DOUBLE);
g_value_init (&va, G_TYPE_VALUE_ARRAY);
for (i = 0; i < channels; i++) {
gdouble rms = sqrt (self->CS[i] / frames);
if (frames == 0 && self->CS[i] == 0) {
gdouble rms;
if (frames == 0 || self->CS[i] == 0) {
rms = 0; /* empty buffer */
} else {
rms = sqrt (self->CS[i] / frames);
}
self->CS[i] = 0.0;
g_value_set_double (&v, rms);