[FFmpeg-cvslog] libvpxenc: fix division by zero

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Aug 16 16:58:59 2012 +0200| [d472453efd32bfb0b3cd348183f4fcb7d4df4389] | committer: Michael Niedermayer

libvpxenc: fix division by zero

Reported-by: thresh
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d472453efd32bfb0b3cd348183f4fcb7d4df4389
---

 libavcodec/libvpxenc.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index 019983f..7046802 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -273,8 +273,9 @@ 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;