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-rw-r--r--libavcodec/celp_filters.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/celp_filters.c b/libavcodec/celp_filters.c
index a81fd8831b..fafedd99a3 100644
--- a/libavcodec/celp_filters.c
+++ b/libavcodec/celp_filters.c
@@ -67,7 +67,7 @@ int ff_celp_lp_synthesis_filter(int16_t *out, const int16_t *filter_coeffs,
for (n = 0; n < buffer_length; n++) {
int sum = -rounder, sum1;
for (i = 1; i <= filter_length; i++)
- sum += filter_coeffs[i-1] * out[n-i];
+ sum += (unsigned)(filter_coeffs[i-1] * out[n-i]);
sum1 = ((-sum >> 12) + in[n]) >> shift;
sum = av_clip_int16(sum1);