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-rw-r--r--libavcodec/imc.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/imc.c b/libavcodec/imc.c
index f4469c4964..a72a6dfed1 100644
--- a/libavcodec/imc.c
+++ b/libavcodec/imc.c
@@ -451,8 +451,13 @@ static int bit_allocation(IMCContext *q, IMCChannel *chctx,
for (i = 0; i < BANDS; i++)
highest = FFMAX(highest, chctx->flcoeffs1[i]);
- for (i = 0; i < BANDS - 1; i++)
+ for (i = 0; i < BANDS - 1; i++) {
+ if (chctx->flcoeffs5[i] <= 0) {
+ av_log(NULL, AV_LOG_ERROR, "flcoeffs5 %f invalid\n", chctx->flcoeffs5[i]);
+ return AVERROR_INVALIDDATA;
+ }
chctx->flcoeffs4[i] = chctx->flcoeffs3[i] - log2f(chctx->flcoeffs5[i]);
+ }
chctx->flcoeffs4[BANDS - 1] = limit;
highest = highest * 0.25;