diff -Naur mp3-0.9.15/mp3.c mp3-0.9.15-span/mp3.c
--- mp3-0.9.15/mp3.c	2006-08-30 17:39:24.000000000 +0200
+++ mp3-0.9.15-span/mp3.c	2006-09-27 14:05:13.000000000 +0200
@@ -1786,6 +1786,12 @@
       }
     return true;
     }
+  else if (strcmp(Id, SPAN_PROVIDER_CHECK_ID) == 0) {
+      if(Data) {
+        *((Span_Provider_Check_1_0*)Data)->isActive = true;
+      }
+      return true;
+    }
   return false;
 }
 
diff -Naur mp3-0.9.15/player-mp3.c mp3-0.9.15-span/player-mp3.c
--- mp3-0.9.15/player-mp3.c	2006-07-30 19:59:31.000000000 +0200
+++ mp3-0.9.15-span/player-mp3.c	2006-09-27 14:21:42.000000000 +0200
@@ -34,6 +34,7 @@
 #include <vdr/ringbuffer.h>
 #include <vdr/thread.h>
 #include <vdr/tools.h>
+#include <vdr/plugin.h>
 
 #include "common.h"
 #include "setup-mp3.h"
@@ -1304,6 +1305,23 @@
       outlen+=(sizeof(header)-6);
       buff[4+FHS]=outlen>>8;
       buff[5+FHS]=outlen;
+      
+// Spectrum Analyzer: Hand over the PCM16-data to SpAn
+      int offset = sizeof(header)+FHS;
+      Span_SetPcmData_1_0 SetPcmData;
+      cPlugin *Plugin = cPluginManager::CallFirstService(SPAN_SET_PCM_DATA_ID, NULL);
+      if (Plugin)
+      {
+	      SetPcmData.length = (unsigned int)(outlen-offset);
+// the timestamp (ms) of the frame(s) to be visualized:
+	      SetPcmData.index = index;
+// tell SpAn the ringbuffer's size for it's internal bookkeeping of the data to be visualized:
+	      SetPcmData.bufferSize = MP3BUFSIZE;
+	      SetPcmData.data = buff + offset + 1; // get rid of the header
+	      SetPcmData.bigEndian = true;
+	      cPluginManager::CallFirstService(SPAN_SET_PCM_DATA_ID, &SetPcmData);
+      }
+      
       f=new cFrame(buff,-(outlen+6+FHS),ftUnknown,index);
       }
     if(!f) free(buff);
@@ -1469,8 +1487,25 @@
   fh->samplerate=sr;
   cFrame *f=0;
   unsigned int outlen=scale.ScaleBlock(buff+FHS,sizeof(buff)-FHS,Samples,Data[0],Data[1],MP3Setup.AudioMode?amDitherLE:amRoundLE);
-  if(outlen) 
+  if(outlen)
+  {
+// Spectrum Analyzer: Hand over the PCM16-data to SpAn
+      int offset = FHS;
+      Span_SetPcmData_1_0 SetPcmData;
+      cPlugin *Plugin = cPluginManager::CallFirstService(SPAN_SET_PCM_DATA_ID, NULL);
+      if (Plugin)
+      {
+	      SetPcmData.length = (unsigned int)(outlen-offset);
+// the timestamp (ms) of the frame(s) to be visualized:
+	      SetPcmData.index = index;
+// tell SpAn the ringbuffer's size for it's internal bookkeeping of the data to be visualized:
+	      SetPcmData.bufferSize = MP3BUFSIZE;
+	      SetPcmData.data = buff + offset + 1; // get rid of the header
+	      SetPcmData.bigEndian = false;
+	      cPluginManager::CallFirstService(SPAN_SET_PCM_DATA_ID, &SetPcmData);
+      }
     f=new cFrame(buff,outlen+FHS,ftUnknown,index);
+  }
   return f;
 }
 
@@ -1592,6 +1627,7 @@
 #ifdef DEBUG_DELAY
   int lastwrite=0;
 #endif
+  bool frameIncomplete = true;
 
   dsyslog("mp3: player thread started (pid=%d)", getpid());
   state=msStop;
@@ -1658,10 +1694,23 @@
 #endif
       int w=output->Output(p,pc,SOF);
       if(w>0) {
+// Spectrum Analyzer: Tell SpAn which timestamp is currently playing
+	 	if ( frameIncomplete )
+	 	{
+			Span_SetPlayindex_1_0 SetPlayindexData;
+			cPlugin *Plugin = cPluginManager::CallFirstService(SPAN_SET_PLAYINDEX_ID, NULL);
+			if (Plugin)
+			{
+				SetPlayindexData.index = playindex;
+			  	cPluginManager::CallFirstService(SPAN_SET_PLAYINDEX_ID, &SetPlayindexData);
+			}
+			frameIncomplete = false;
+	 	}
         p+=w; pc-=w;
         if(pc<=0) {
           ringBuffer->Drop(pframe);
           pframe=0;
+          frameIncomplete = true;
           goto next;
           }
         }
diff -Naur mp3-0.9.15/player-mp3.h mp3-0.9.15-span/player-mp3.h
--- mp3-0.9.15/player-mp3.h	2006-07-30 19:59:20.000000000 +0200
+++ mp3-0.9.15-span/player-mp3.h	2006-09-27 14:13:31.000000000 +0200
@@ -27,6 +27,31 @@
 
 // -------------------------------------------------------------------
 
+#define SPAN_PROVIDER_CHECK_ID  "Span-ProviderCheck-v1.0"
+#define SPAN_SET_PCM_DATA_ID    "Span-SetPcmData-v1.1"
+#define SPAN_SET_PLAYINDEX_ID   "Span-SetPlayindex-v1.0"
+
+//Span requests to collect possible providers / clients
+struct Span_Provider_Check_1_0 {
+    bool *isActive;
+	bool *isRunning;
+};
+
+// SpanData
+struct Span_SetPcmData_1_0 {
+	unsigned int length;		// the length of the PCM-data
+	const unsigned char *data;	// the PCM-Data
+	int index;					// the timestamp (ms) of the frame(s) to be visualized
+	unsigned int bufferSize;	// for span-internal bookkeeping of the data to be visualized
+	bool bigEndian;				// are the pcm16-data coded bigEndian?
+};
+
+struct Span_SetPlayindex_1_0 {
+	int index;					// the timestamp (ms) of the frame(s) being currently played
+};
+
+// -------------------------------------------------------------------
+
 class cRingBufferFrame;
 class cFrame;