Testcase is fate
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/lpc.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/libavcodec/lpc.h b/libavcodec/lpc.h
index edb1a6b..2c32409 100644
--- a/libavcodec/lpc.h
+++ b/libavcodec/lpc.h
@@ -149,7 +149,11 @@ static inline void compute_ref_coefs(const LPC_TYPE
*autoc, int max_order,
gen1[j] = gen1[j + 1] + ref[i - 1] * gen0[j];
gen0[j] = gen1[j + 1] * ref[i - 1] + gen0[j];
}
- ref[i] = -gen1[0] / err;
+
+ if (gen1[0] == 0 && err == 0)
+ ref[i] = 0;
+ else
+ ref[i] = -gen1[0] / err;
err += gen1[0] * ref[i];
if (error)
error[i] = err;
--
1.7.9.5
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