commit 284fe197d6e2f8759a0919941271f75264776613
author Dominic Symes <dominic.symes@arm.com> Wed Jan 17 16:52:58 2018 +0100
committer Dominic Symes <dominic.symes@arm.com> Wed Jan 17 21:15:06 2018 +0000
tree 8a324bc1537a9db23609c37f2a1e1d3382a10e5a
parent f32dabd2883bdfb89482e2f8ce5abec49b627927

intrabc: signal error on illegal intrabc motion vectors

This change reverts to signalling an error on illegal intrabc motion 
vectors as discussed in the following bug:

BUG=aommedia:1229

Change-Id: Idbd4e43141b885eaa76d50247a196a1305518e32

av1/decoder/decodemv.c

diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index 7b3a212..9252224 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -1039,9 +1039,8 @@
     valid_dv = valid_dv && assign_dv(cm, xd, &mbmi->mv[0], &dv_ref, mi_row,
                                      mi_col, bsize, r);
     if (!valid_dv) {
-      // Intra bc motion vectors are not valid - disable intrabc
-      mbmi->use_intrabc = 0;
-      return;
+      // Intra bc motion vectors are not valid - signal corrupt frame
+      aom_merge_corrupted_flag(&xd->corrupted, 1);
     }
 #if !CONFIG_TXK_SEL
     av1_read_tx_type(cm, xd, r);