diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 4fdd0c2aba..be399e9b70 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -159,6 +159,16 @@ void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
             w_align=64;
             h_align=64;
         }
+    case PIX_FMT_RGB555:
+        if(s->codec_id == CODEC_ID_RPZA){
+            w_align=4;
+            h_align=4;
+        }
+    case PIX_FMT_PAL8:
+        if(s->codec_id == CODEC_ID_SMC){
+            w_align=4;
+            h_align=4;
+        }
         break;
     default:
         w_align= 1;