1 files changed, 37 insertions, 0 deletions
diff --git a/libavcodec/to_upper4.h b/libavcodec/to_upper4.h
new file mode 100644
index 0000000000..d9648b5ef6
--- /dev/null
+++ b/libavcodec/to_upper4.h
@@ -0,0 +1,37 @@
+/*
+ * Converting FOURCCs to uppercase
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_TO_UPPER4_H
+#define AVCODEC_TO_UPPER4_H
+
+#include "libavutil/avstring.h"
+#include "internal.h"
+
+unsigned int ff_toupper4(unsigned int x)
+{
+    return av_toupper(x & 0xFF) |
+          (av_toupper((x >>  8) & 0xFF) << 8)  |
+          (av_toupper((x >> 16) & 0xFF) << 16) |
+((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
+}
+
+#endif