diff --git a/gst/qtdemux/qtdemux.c b/gst/qtdemux/qtdemux.c
index b4f9cbf164..dbb822863d 100644
--- a/gst/qtdemux/qtdemux.c
+++ b/gst/qtdemux/qtdemux.c
@@ -2159,8 +2159,9 @@ qtdemux_parse_trun (GstQTDemux * qtdemux, GstByteReader * trun,
       QTDEMUX_MAX_SAMPLE_INDEX_SIZE / sizeof (QtDemuxSample))
     goto index_too_big;
 
-  GST_DEBUG_OBJECT (qtdemux, "allocating n_samples %u (%lu MB)",
-      stream->n_samples, (stream->n_samples * sizeof (QtDemuxSample)) >> 20);
+  GST_DEBUG_OBJECT (qtdemux, "allocating n_samples %u * %u (%.2f MB)",
+      stream->n_samples, (guint) sizeof (QtDemuxSample),
+      stream->n_samples * sizeof (QtDemuxSample) / (1024.0 * 1024.0));
 
   /* create a new array of samples if it's the first sample parsed */
   if (stream->n_samples == 0)
@@ -5201,7 +5202,7 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
   /* sync sample atom */
   stream->stps_present = FALSE;
   if ((stream->stss_present =
-          !!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stss,
+          ! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stss,
               &stream->stss) ? TRUE : FALSE) == TRUE) {
     /* copy atom data into a new buffer for later use */
     stream->stss.data = g_memdup (stream->stss.data, stream->stss.size);
@@ -5219,7 +5220,7 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
 
     /* partial sync sample atom */
     if ((stream->stps_present =
-            !!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stps,
+            ! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stps,
                 &stream->stps) ? TRUE : FALSE) == TRUE) {
       /* copy atom data into a new buffer for later use */
       stream->stps.data = g_memdup (stream->stps.data, stream->stps.size);
@@ -5316,10 +5317,9 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
       goto corrupt_file;
   }
 
-  GST_DEBUG_OBJECT (qtdemux,
-      "allocating n_samples %u * %" G_GSIZE_FORMAT " = (%u MB)",
-      stream->n_samples, sizeof (QtDemuxSample),
-      (guint) (stream->n_samples * sizeof (QtDemuxSample)) >> 20);
+  GST_DEBUG_OBJECT (qtdemux, "allocating n_samples %u * %u (%.2f MB)",
+      stream->n_samples, (guint) sizeof (QtDemuxSample),
+      stream->n_samples * sizeof (QtDemuxSample) / (1024.0 * 1024.0));
 
   if (stream->n_samples >=
       QTDEMUX_MAX_SAMPLE_INDEX_SIZE / sizeof (QtDemuxSample)) {
@@ -5339,7 +5339,7 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
 
   /* composition time-to-sample */
   if ((stream->ctts_present =
-          !!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_ctts,
+          ! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_ctts,
               &stream->ctts) ? TRUE : FALSE) == TRUE) {
     /* copy atom data into a new buffer for later use */
     stream->ctts.data = g_memdup (stream->ctts.data, stream->ctts.size);