va: h265dec: Add current picture into reference list for SCC.

The current picture is not in the DPB, so we need to add it manually
to the reference list when SCC is enabled.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2255>

diff --git a/sys/va/gstvah265dec.c b/sys/va/gstvah265dec.c
index 795e87d..1e60e6b 100644 (file)
--- a/sys/va/gstvah265dec.c
+++ b/sys/va/gstvah265dec.c
@@ -760,6 +760,20 @@ gst_va_h265_dec_start_picture (GstH265Decoder * decoder,
     }
     g_array_unref (ref_list);
 
+    /* 7.4.3.3.3, the current decoded picture is marked as "used for
+       long-term reference". Current picture is not in the DPB now. */
+    if (pps->pps_scc_extension_params.pps_curr_pic_ref_enabled_flag && i < 15) {
+      pic_param->base.ReferenceFrames[i].picture_id =
+          gst_va_decode_picture_get_surface (gst_h265_picture_get_user_data
+          (picture));
+      pic_param->base.ReferenceFrames[i].pic_order_cnt = picture->pic_order_cnt;
+      pic_param->base.ReferenceFrames[i].flags |=
+          VA_PICTURE_HEVC_LONG_TERM_REFERENCE;
+      pic_param->base.ReferenceFrames[i].flags |=
+          _find_frame_rps_type (decoder, picture);
+      i++;
+    }
+
     for (; i < 15; i++)
       _init_vaapi_pic (&pic_param->base.ReferenceFrames[i]);
   }