From: Michael Niedermayer <[email protected]>

Reported-by: thresh
Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavcodec/libvpxenc.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index c5c522a..9c3ec02 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -258,8 +258,9 @@ static av_cold int vp8_init(AVCodecContext *avctx)
 
     //0-100 (0 => CBR, 100 => VBR)
     enccfg.rc_2pass_vbr_bias_pct           = round(avctx->qcompress * 100);
-    enccfg.rc_2pass_vbr_minsection_pct     =
-        avctx->rc_min_rate * 100LL / avctx->bit_rate;
+    if (avctx->bit_rate)
+        enccfg.rc_2pass_vbr_minsection_pct     =
+            avctx->rc_min_rate * 100LL / avctx->bit_rate;
     if (avctx->rc_max_rate)
         enccfg.rc_2pass_vbr_maxsection_pct =
             avctx->rc_max_rate * 100LL / avctx->bit_rate;
-- 
1.7.10.5

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