Try to set AVFrame.reference to correct values.

I am not sure these new values are correct, not am I sure
the semantics are a good idea since we do not seem to make any
use of them but they caused a lot of confusion, but this
seems to make things closer to matching the documentation.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index ca01f9c684..95d4794e72 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -1701,7 +1701,7 @@ static int frame_start(SnowContext *s){
         }
     }
 
-    s->current_picture.reference= 1;
+    s->current_picture.reference= 3;
     if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){
         av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return -1;