From 350ad93b10bc7cb6fdb3439d9c0d9671f56efb02 Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <moritz@bunkus.org>
Date: Sun, 18 Sep 2011 11:58:49 +0200
Subject: [PATCH] Helper function for stringifying a FourCC

---
 src/common/output.cpp | 12 ++++++++++++
 src/common/output.h   |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/src/common/output.cpp b/src/common/output.cpp
index 169265d3a..c7a4d7e09 100644
--- a/src/common/output.cpp
+++ b/src/common/output.cpp
@@ -14,6 +14,7 @@
 #include "common/common_pch.h"
 
 #include "common/ebml.h"
+#include "common/endian.h"
 #include "common/mm_io.h"
 #include "common/locale.h"
 #include "common/output.h"
@@ -287,3 +288,14 @@ dump_ebml_elements(EbmlElement *element,
     dump_ebml_elements((*master)[i], with_values, level + 1);
 }
 
+std::string
+fourcc_to_string(uint32_t fourcc) {
+  unsigned char buffer[4], idx;
+
+  put_uint32_be(buffer, fourcc);
+  for (idx = 0; 4 > idx; ++idx)
+    if (buffer[idx] < ' ')
+      buffer[idx] = ' ';
+
+  return std::string(reinterpret_cast<char *>(buffer), 4);
+}
diff --git a/src/common/output.h b/src/common/output.h
index 795b75f43..d83b3ab80 100644
--- a/src/common/output.h
+++ b/src/common/output.h
@@ -133,4 +133,6 @@ void MTX_DLL_API mxhexdump(unsigned int level, const void *buffer_to_dump, size_
 
 void MTX_DLL_API dump_ebml_elements(EbmlElement *element, bool with_values = false, unsigned int level = 0);
 
+std::string fourcc_to_string(uint32_t fourcc);
+
 #endif  // __MTX_COMMON_OUTPUT_H