packetizer: hevc: fix null deref regression

7 years ago · 4a38300a4c
1 changed files with 2 additions and 1 deletions
--- a/modules/packetizer/hevc.c
+++ b/modules/packetizer/hevc.c
@ -152,7 +152,8 @@ static block_t * OutputQueues(decoder_sys_t *p_sys, bool b_valid)
            }
            block_ChainLastAppend(&pp_output_last, GetXPSCopy(p_sys));
        }
-        block_ChainLastAppend(&pp_output_last, p_sys->pre.p_chain);
+        if(p_sys->pre.p_chain)
+            block_ChainLastAppend(&pp_output_last, p_sys->pre.p_chain);
        INITQ(pre);
    }