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-rw-r--r--libavcodec/lsp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/lsp.c b/libavcodec/lsp.c
index 420921639f..ffd2410b48 100644
--- a/libavcodec/lsp.c
+++ b/libavcodec/lsp.c
@@ -157,9 +157,11 @@ static void lsp2polyf(const double *lsp, double *f, int lp_half_order)
void ff_acelp_lspd2lpc(const double *lsp, float *lpc, int lp_half_order)
{
- double pa[lp_half_order+1], qa[lp_half_order+1];
+ double pa[MAX_LP_HALF_ORDER+1], qa[MAX_LP_HALF_ORDER+1];
float *lpc2 = lpc + (lp_half_order << 1) - 1;
+ assert(lp_half_order <= MAX_LP_HALF_ORDER);
+
lsp2polyf(lsp, pa, lp_half_order);
lsp2polyf(lsp + 1, qa, lp_half_order);