From 79829f7f63e9008e4ef38cba3805f86cb4b4e28d Mon Sep 17 00:00:00 2001
From: Tobias Grimm <git@e-tobi.net>
Date: Mon, 19 Apr 2010 01:58:36 +0200
Subject: For live tv in non-transfer mode use a cReceiver

With a FF card, when the card is not in transfer mode, in order to get the
Tpid data, a cReceiver mus be used.
---
 ttxtsubslivereceiver.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 ttxtsubslivereceiver.c

(limited to 'ttxtsubslivereceiver.c')

diff --git a/ttxtsubslivereceiver.c b/ttxtsubslivereceiver.c
new file mode 100644
index 0000000..cfe3288
--- /dev/null
+++ b/ttxtsubslivereceiver.c
@@ -0,0 +1,77 @@
+/*
+ * vdr-ttxtsubs - A plugin for the Linux Video Disk Recorder
+ * Copyright (c) 2003 - 2008 Ragnar Sundblad <ragge@nada.kth.se>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <vdr/device.h>
+#include <vdr/remux.h>
+#include "ttxtsubslivereceiver.h"
+
+cTtxtSubsLiveReceiver::cTtxtSubsLiveReceiver(cChannel* channel, cVDRTtxtsubsHookListener* hook)
+{
+  _channel = channel;
+  _hook = hook;
+  AddPid(channel->Tpid());
+}
+
+cTtxtSubsLiveReceiver::~cTtxtSubsLiveReceiver()
+{
+  cReceiver::Detach();
+}
+
+void cTtxtSubsLiveReceiver::Receive(uchar *Data, int Length)
+{
+  if (Data == NULL)
+  {
+     tsToPesTeletext.Reset();
+     return;
+  }
+
+  if (Length < TS_SIZE)
+  {
+     esyslog("ERROR: skipped %d bytes of TS fragment", Length);
+     return;
+  }
+
+  while (Length >= TS_SIZE)
+  {
+    if (Data[0] != TS_SYNC_BYTE)
+    {
+      return;
+    }
+    if (TsHasPayload(Data)) // silently ignore TS packets w/o payload
+    {
+      int PayloadOffset = TsPayloadOffset(Data);
+      if (PayloadOffset < TS_SIZE)
+      {
+        int l;
+        tsToPesTeletext.PutTs(Data, Length);
+        if (const uchar *p = tsToPesTeletext.GetPes(l))
+        {
+          if ((l > 45) && (p[0] == 0x00) && (p[1] == 0x00) && (p[2] == 0x01) && (p[3] == 0xbd) && (p[8] == 0x24) && (p[45] >= 0x10) && (p[45] < 0x20))
+          {
+            _hook->PlayerTeletextData((uchar *)p, l, false, _channel->TeletextSubtitlePages(), _channel->TotalTeletextSubtitlePages());
+          }
+          tsToPesTeletext.Reset();
+        }
+      }
+    }
+    Length -= TS_SIZE;
+    Data += TS_SIZE;
+  }
+}
-- 
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