1 files changed, 61 insertions, 0 deletions
diff --git a/mpeglib/lib/util/syncClock.h b/mpeglib/lib/util/syncClock.h
new file mode 100644
index 00000000..4b6bc2bb
--- /dev/null
+++ b/mpeglib/lib/util/syncClock.h
@@ -0,0 +1,61 @@
+/*
+  basic synchronisation Classs
+  Copyright (C) 2000 Martin Vogt
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Library General Public License as published by
+  the Free Software Foundation.
+
+  For more information look at the file COPYRIGHT in this package
+
+ */
+
+
+
+#ifndef __SYNCCLOCK_H
+#define __SYNCCLOCK_H
+
+#include "timeWrapper.h"
+#include "abstract/abs_thread.h"
+#include "timeStamp.h"
+#include <errno.h>
+
+#define __SYNC_NONE      0
+#define __SYNC_AUDIO     1
+#define __SYNC_VIDEO     2
+#define __SYNC_BOTH      3
+
+
+/**
+   The idea is similar to this:
+   We start a clock and selext a synchronisation mode.
+   (AUDIO,VIDEO,BOTH,NONE)
+   Assume we select AUDIO. When the audio thread delivers an SCR
+   and an PTS, we set the SCR from this set, as the new
+   time reference fo rthis clock.
+   If a video thread enters the class, with an SCR,PTS we wait,
+   or directly return if the PTS is in time or out of time,
+   but we never set the SCR.
+*/
+
+class SyncClock {   
+
+
+ public:
+  SyncClock();
+  virtual ~SyncClock();
+
+  virtual int getSyncMode();
+  virtual void setSyncMode(int syncMode);
+
+  
+  virtual int syncAudio(double pts,double scr);
+  virtual int syncVideo(double pts,double scr,
+			class TimeStamp* earlyTime,
+			class TimeStamp* waitTime);
+
+  virtual void print(char* text);
+
+
+};
+#endif