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swresample/resample: use av_malloc_array() where appropriate

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5027f39712fdce25b9008e72d52e5abfeefd5fe6)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer authored on 2014/04/08 07:29:26
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@@ -95,7 +95,7 @@ static int build_filter(ResampleContext *c, void *filter, double factor, int tap
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                         int filter_type, int kaiser_beta){
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     int ph, i;
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     double x, y, w;
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-    double *tab = av_malloc(tap_count * sizeof(*tab));
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+    double *tab = av_malloc_array(tap_count,  sizeof(*tab));
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     const int center= (tap_count-1)/2;
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     if (!tab)