From: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
Date: Wed, 21 Sep 2016 06:52:21 +0000 (+0300)
Subject: encoder: vp9: Fix refresh frame flag setting
X-Git-Tag: 1.19.3~503^2~1254
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=44a90c196ddce97519d99311983ac04631e43d58;p=platform%2Fupstream%2Fgstreamer.git

encoder: vp9: Fix refresh frame flag setting

While doing the mode-1 referece picture selection,
the circular buffer logic was not correctly setting the
refresh frame flags as per VP9 spec.
Make sure refresh_flag[0] get updated correclty after
each cycle of GST_VP9_REF_FRAMES.

https://bugzilla.gnome.org/show_bug.cgi?id=771507
---

diff --git a/gst-libs/gst/vaapi/gstvaapiencoder_vp9.c b/gst-libs/gst/vaapi/gstvaapiencoder_vp9.c
index 6006f68..0069648 100644
--- a/gst-libs/gst/vaapi/gstvaapiencoder_vp9.c
+++ b/gst-libs/gst/vaapi/gstvaapiencoder_vp9.c
@@ -228,7 +228,7 @@ get_ref_indices (guint ref_pic_mode, guint ref_list_idx, guint * last_idx,
     *gf_idx = (last_filled_idx - 1) & (GST_VP9_REF_FRAMES - 1);
     *arf_idx = (last_filled_idx - 2) & (GST_VP9_REF_FRAMES - 1);
 
-    *refresh_frame_flags = 1 << (*last_idx + 1);
+    *refresh_frame_flags = 1 << ((*last_idx + 1) % GST_VP9_REF_FRAMES);
   }
 
   GST_LOG