Fix compiler error

Fix a compiler error that strlen() is not constexpr.

Change-Id: I25f5c76bafd9157667fb8d6ba12e309a44fbf38e
Reviewed-by: Piotr Srebrny <piotr.srebrny@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
(cherry picked from commit 9f737ceca88b7973a60a3e0e1dd6cf1cade0cbe6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/multimedia/platform/gstreamer/common/qgstvideorenderersink.cpp b/src/multimedia/platform/gstreamer/common/qgstvideorenderersink.cpp
index 1c4a27bd9..1a8107889 100644
--- a/src/multimedia/platform/gstreamer/common/qgstvideorenderersink.cpp
+++ b/src/multimedia/platform/gstreamer/common/qgstvideorenderersink.cpp
@@ -281,10 +281,10 @@ void QGstVideoRenderer::gstEvent(GstEvent *event)
     if (!gst_tag_list_get_string(taglist, GST_TAG_IMAGE_ORIENTATION, &value))
         return;
 
-    constexpr const char *rotate= "rotate-";
-    constexpr const char *flipRotate= "flip-rotate-";
-    constexpr size_t rotateLen = strlen(rotate);
-    constexpr size_t flipRotateLen = strlen(flipRotate);
+    constexpr const char rotate[] = "rotate-";
+    constexpr const char flipRotate[] = "flip-rotate-";
+    constexpr size_t rotateLen = sizeof(rotate) - 1;
+    constexpr size_t flipRotateLen = sizeof(flipRotate) - 1;
 
     bool mirrored = false;
     int rotationAngle = 0;