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swr/dither: fix division by 0

Found-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-14 01:06:48 +01:00
parent c13e4e288c
commit 55d0528669

View File

@ -97,7 +97,7 @@ int swri_dither_init(SwrContext *s, enum AVSampleFormat out_fmt, enum AVSampleFo
s->dither.ns_pos = 0; s->dither.ns_pos = 0;
s->dither.noise_scale= scale; s->dither.noise_scale= scale;
s->dither.ns_scale = scale; s->dither.ns_scale = scale;
s->dither.ns_scale_1 = 1/scale; s->dither.ns_scale_1 = scale ? 1/scale : 0;
memset(s->dither.ns_errors, 0, sizeof(s->dither.ns_errors)); memset(s->dither.ns_errors, 0, sizeof(s->dither.ns_errors));
for (i=0; filters[i].coefs; i++) { for (i=0; filters[i].coefs; i++) {
const filter_t *f = &filters[i]; const filter_t *f = &filters[i];