From a7ceac50b2e5e32bcf91ad4e6dbd4b833a1c3be1 Mon Sep 17 00:00:00 2001
From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Date: Fri, 18 Mar 2022 15:59:21 -0400
Subject: [PATCH] vp9decoder: Copy system_frame_number in duplicate_picture

Just like AV1, copy the system_frame_number from the original picture to make
it clear they reference the same data.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1992>
---
 subprojects/gst-plugins-bad/gst-libs/gst/codecs/gstvp9decoder.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/subprojects/gst-plugins-bad/gst-libs/gst/codecs/gstvp9decoder.c b/subprojects/gst-plugins-bad/gst-libs/gst/codecs/gstvp9decoder.c
index 089851f504..ff9e1a20c0 100644
--- a/subprojects/gst-plugins-bad/gst-libs/gst/codecs/gstvp9decoder.c
+++ b/subprojects/gst-plugins-bad/gst-libs/gst/codecs/gstvp9decoder.c
@@ -468,6 +468,8 @@ gst_vp9_decoder_handle_frame (GstVideoDecoder * decoder,
       GST_ERROR_OBJECT (self, "subclass didn't provide duplicated picture");
       goto unmap_and_error;
     }
+
+    picture->system_frame_number = pic_to_dup->system_frame_number;
   } else {
     picture = gst_vp9_picture_new ();
     picture->frame_hdr = frame_hdr;