diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index 2a71d1dc19..dd5a9547eb 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -1197,8 +1197,8 @@ static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)
             break;
         default:
             av_log(s->avctx, AV_LOG_ERROR,
-                   "unsupported marker 0x%.4X at pos 0x%lX\n",
-                   marker, (uint64_t)(s->buf - s->buf_start - 4));
+                   "unsupported marker 0x%.4X at pos 0x%tX\n",
+                   marker, s->buf - s->buf_start - 4);
             s->buf += len - 2;
             break;
         }
diff --git a/libavformat/mmf.c b/libavformat/mmf.c
index e3c95cca36..cb87a6dddb 100644
--- a/libavformat/mmf.c
+++ b/libavformat/mmf.c
@@ -98,6 +98,7 @@ static int mmf_write_header(AVFormatContext *s)
     avio_w8(pb, 0); /* status */
     avio_w8(pb, 0); /* counts */
     end_tag_be(pb, pos);
+
     pos = ff_start_tag(pb, "OPDA");
     avio_write(pb, version, strlen(version)); /* metadata ("ST:songtitle,VN:version,...") */
     end_tag_be(pb, pos);