Index: mplayer.c
===================================================================
--- mplayer.c	(revision 30479)
+++ mplayer.c	(working copy)
@@ -2031,6 +2031,16 @@
 }
 #endif /* CONFIG_DVDNAV */
 
+static void avfile_print(double delay)
+{
+  static FILE *avfile;
+
+  if (avfile == NULL) {
+    avfile = fopen("av-desynch.txt", "w");
+  }
+  fprintf(avfile, "%lld\n", (long long int)(delay * 1000000ll));
+}
+
 static void adjust_sync_and_print_status(int between_frames, float timing_error)
 {
     current_module="av_sync";
@@ -2060,6 +2070,8 @@
 	    static int drop_message=0;
 	    double AV_delay = a_pts - audio_delay - v_pts;
 	    double x;
+
+	    avfile_print(AV_delay);
 	    if (AV_delay>0.5 && drop_frame_cnt>50 && drop_message==0){
 		++drop_message;
 		mp_msg(MSGT_AVSYNC,MSGL_WARN,MSGTR_SystemTooSlow);