1 files changed, 7 insertions, 1 deletions
diff --git a/libs/ptformat/ptfformat.h b/libs/ptformat/ptfformat.h
index be7076dbfd..1d3dac2ba3 100644
--- a/libs/ptformat/ptfformat.h
+++ b/libs/ptformat/ptfformat.h
@@ -16,10 +16,10 @@
 #define PTFFORMAT_H
 
 #include <string>
+#include <cstring>
 #include <algorithm>
 #include <vector>
 #include <stdint.h>
-
 #include "ptformat/visibility.h"
 
 class LIBPTFORMAT_API PTFFormat {
@@ -39,6 +39,11 @@ public:
 		int64_t     posabsolute;
 		int64_t     length;
 
+		bool operator <(const struct wav& other) {
+			return (strcasecmp(this->filename.c_str(),
+					other.filename.c_str()) < 0);
+		}
+
 		bool operator ==(const struct wav& other) {
 			return (this->filename == other.filename ||
 				this->index == other.index);
@@ -125,6 +130,7 @@ private:
 	void parserest10(void);
 	void parseaudio5(void);
 	void parseaudio(void);
+	void resort(std::vector<wav_t> *ws);
 	std::vector<wav_t> actualwavs;
 	float ratefactor;
 	std::string extension;