From 167ea1fbf15ecefa30729f9b8d091ed431bf43bd Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Sun, 23 Aug 2015 17:57:21 +0200
Subject: [PATCH] xavs: Do not try to set the bitrate tolerance without a
 bitrate

Avoid a division by zero.

Bug-Id: CID 1257655
---
 libavcodec/libxavs.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavcodec/libxavs.c b/libavcodec/libxavs.c
index f0f5dfdcd3..43b0915c52 100644
--- a/libavcodec/libxavs.c
+++ b/libavcodec/libxavs.c
@@ -356,8 +356,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
     if (avctx->level > 0)
         x4->params.i_level_idc = avctx->level;
 
-    x4->params.rc.f_rate_tolerance =
-        (float)avctx->bit_rate_tolerance/avctx->bit_rate;
+    if (avctx->bit_rate > 0)
+        x4->params.rc.f_rate_tolerance =
+            (float)avctx->bit_rate_tolerance / avctx->bit_rate;
 
     if ((avctx->rc_buffer_size) &&
         (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {