libhb: disable threaded ffmpeg decoding for scan

There is a bug in ffmpeg that causes a crash if you call 
avcodec_open and avcodec_close repeatedly on the same AVCodecContext.


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@4037 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 4 insertions, 0 deletions

diff --git a/libhb/hb.c b/libhb/hb.c
index b1050e0e0..981a2ed21 100644
--- a/libhb/hb.c
+++ b/libhb/hb.c
@@ -111,6 +111,10 @@ int hb_avcodec_open(AVCodecContext *avctx, AVCodec *codec, int thread_count)
         avctx->thread_type = FF_THREAD_FRAME|FF_THREAD_SLICE;
         avctx->thread_safe_callbacks = 1;
     }
+    else
+    {
+        avctx->thread_count = 1;
+    }
 
     ret = avcodec_open(avctx, codec);
     return ret;