sectionsd: close / reopen demux device explicitely on TD

The Tripledragon drivers need explicit close/open to recover from
buffer overruns (or similar). Observed problem was, that when starting
on a channel that does send TDT only every 30 seconds (ZDF), the demux
would not work anymore and never recover.

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@1258 e54a6e83-5905-42d5-8d5c-058d10e6a962


Origin commit data
------------------
Branch: ni/coolstream
Commit: 1f84bf9a1b
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2011-03-06 (Sun, 06 Mar 2011)



------------------
This commit was generated by Migit

src/sectionsd/dmx.cpp

@@ -105,7 +105,11 @@ void DMX::closefd(void)
 	if (isOpen())
 	{
 		//close(fd);
+#if HAVE_TRIPLEDRAGON
+		dmx->Close();
+#else
 		dmx->Stop();
+#endif
 		fd = -1;
 	}
 }
@@ -495,8 +499,13 @@ xprintf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>DMX::imediate_start: isOpen()<<<<<<<<<<<<
 #endif
         if(dmx == NULL) {
                 dmx = new cDemux(dmx_num);
+#if !HAVE_TRIPLEDRAGON
                 dmx->Open(DMX_PSI_CHANNEL, NULL, dmxBufferSizeInKB*1024UL);
+#endif
         }
+#if HAVE_TRIPLEDRAGON
+	dmx->Open(DMX_PSI_CHANNEL, NULL, dmxBufferSizeInKB*1024UL);
+#endif
 	fd = 1;
 
 	/* setfilter() only if this is no dummy filter... */