Added VDR patch that stores the manual page selection with the channel settings

The manual page slection wil get stored in the channels.conf.
Patch provided by Rolf Ahrenberg (tpid-v2)

(references #139)

2 files changed, 519 insertions, 0 deletions

diff --git a/HISTORY b/HISTORY
index 2a4aa6c..cd44170 100644
--- a/HISTORY
+++ b/HISTORY
@@ -8,6 +8,9 @@ VDR Plugin 'ttxtsubs' Revision History
 - Updated plugin and VDR patch for 1.7.12 - Thx to Rolf Ahrenberg (Closes #236)
 - Fixed replay when the current live ttxtsubs page differs from the
   one in the recording - Thx to Rolf Ahrenberg (Closes #139)
+- Added VDR patch that stores the manual page selection with the channel settings
+  in the channels.conf - patch provided by Rolf Ahrenberg (tpid-v2)
+  (references #139)
 
 2009-04-26: Version 0.1.0
 - Updated VDR patch and plugin to VDR 1.7.6 with support for the TS recording
diff --git a/patches/vdr-1.7.12-ttxtsubs-tpid-v2.patch b/patches/vdr-1.7.12-ttxtsubs-tpid-v2.patch
new file mode 100644
index 0000000..5080fd4
--- /dev/null
+++ b/patches/vdr-1.7.12-ttxtsubs-tpid-v2.patch
@@ -0,0 +1,516 @@
+diff --git a/Makefile b/Makefile
+index 01408cb..b280030 100644
+--- a/Makefile
++++ b/Makefile
+@@ -43,6 +43,8 @@ OBJS = audio.o channels.o ci.o config.o cutter.o device.o diseqc.o dvbdevice.o d
+        skinclassic.o skins.o skinsttng.o sources.o spu.o status.o svdrp.o themes.o thread.o\
+        timers.o tools.o transfer.o vdr.o videodir.o
+ 
++OBJS += vdrttxtsubshooks.o
++
+ ifndef NO_KBD
+ DEFINES += -DREMOTE_KBD
+ endif
+diff --git a/channels.c b/channels.c
+index c14df19..1759238 100644
+--- a/channels.c
++++ b/channels.c
+@@ -551,6 +551,15 @@ void cChannel::SetSubtitlingDescriptors(uchar *SubtitlingTypes, uint16_t *Compos
+      }
+ }
+ 
++void cChannel::SetTPidData(char TLangs[][MAXLANGCODE2], int TPages[])
++{
++  for (int i = manualtpages; i < MAXTPAGES; i++) {
++      tpages[i] = TPages[i];
++      strn0cpy(tlangs[i], TLangs[i], MAXLANGCODE2);
++      }
++  tpages[MAXTPAGES] = 0;
++}
++
+ void cChannel::SetCaIds(const int *CaIds)
+ {
+   if (caids[0] && caids[0] <= CA_USER_MAX)
+@@ -758,11 +767,20 @@ cString cChannel::ToText(const cChannel *Channel)
+         q += IntArrayToString(q, Channel->dpids, 10, Channel->dlangs);
+         }
+      *q = 0;
++     const int TBufferSize = 5 + 1 + (MAXTPAGES * (MAXLANGCODE2 + 5 + 1)) + 10; // 5 digits plus delimiting ',' or ';' plus optional '=cod+cod', +10: paranoia
++     char tpidbuf[TBufferSize];
++     q = tpidbuf;
++     q += snprintf(q, sizeof(tpidbuf), "%d", Channel->tpid);
++     if (Channel->manualtpages > 0) {
++        q += snprintf(q, sizeof(tpidbuf) - (q - tpidbuf), ";");
++        for (int i = 0; i < Channel->manualtpages; ++i)
++            q += snprintf(q, sizeof(tpidbuf) - (q - tpidbuf), "%d%s%s", Channel->tpages[i], *Channel->tlangs[i] ? "=" : "", *Channel->tlangs[i] ? Channel->tlangs[i] : "");
++        }
+      char caidbuf[MAXCAIDS * 5 + 10]; // 5: 4 digits plus delimiting ',', 10: paranoia
+      q = caidbuf;
+      q += IntArrayToString(q, Channel->caids, 16);
+      *q = 0;
+-     buffer = cString::sprintf("%s:%d:%s:%s:%d:%s:%s:%d:%s:%d:%d:%d:%d\n", FullName, Channel->frequency, *Channel->ParametersToString(), *cSource::ToString(Channel->source), Channel->srate, vpidbuf, apidbuf, Channel->tpid, caidbuf, Channel->sid, Channel->nid, Channel->tid, Channel->rid);
++     buffer = cString::sprintf("%s:%d:%s:%s:%d:%s:%s:%s:%s:%d:%d:%d:%d\n", FullName, Channel->frequency, *Channel->ParametersToString(), *cSource::ToString(Channel->source), Channel->srate, vpidbuf, apidbuf, tpidbuf, caidbuf, Channel->sid, Channel->nid, Channel->tid, Channel->rid);
+      }
+   return buffer;
+ }
+@@ -796,8 +814,9 @@ bool cChannel::Parse(const char *s)
+      char *parambuf = NULL;
+      char *vpidbuf = NULL;
+      char *apidbuf = NULL;
++     char *tpidbuf = NULL;
+      char *caidbuf = NULL;
+-     int fields = sscanf(s, "%a[^:]:%d :%a[^:]:%a[^:] :%d :%a[^:]:%a[^:]:%d :%a[^:]:%d :%d :%d :%d ", &namebuf, &frequency, &parambuf, &sourcebuf, &srate, &vpidbuf, &apidbuf, &tpid, &caidbuf, &sid, &nid, &tid, &rid);
++     int fields = sscanf(s, "%a[^:]:%d :%a[^:]:%a[^:] :%d :%a[^:]:%a[^:]:%a[^:]:%a[^:]:%d :%d :%d :%d ", &namebuf, &frequency, &parambuf, &sourcebuf, &srate, &vpidbuf, &apidbuf, &tpidbuf, &caidbuf, &sid, &nid, &tid, &rid);
+      if (fields >= 9) {
+         if (fields == 9) {
+            // allow reading of old format
+@@ -879,7 +898,35 @@ bool cChannel::Parse(const char *s)
+                     }
+               dpids[NumDpids] = 0;
+               }
+-
++           if (tpidbuf) {
++              char *p;
++              manualtpages = 0;
++              // 2001;150=deu,151=fin
++              if ((p = strchr(tpidbuf, ';')) != NULL) {
++                 char *q, *strtok_next;
++                 *p++ = 0;
++                 while ((q = strtok_r(p, ",", &strtok_next)) != NULL) {
++                       if (manualtpages < MAXTPAGES) {
++                          int page;
++                          char *l = strchr(q, '=');
++                          if (l) {
++                             *l++ = 0;
++                             strn0cpy(tlangs[manualtpages], l, MAXLANGCODE2);
++                             }
++                          if (sscanf(q, "%d", &page) == 1)
++                             tpages[manualtpages++] = (page & 0xFF) | (0x02 << 16); // set subtitling type
++                          else
++                             esyslog("ERROR: invalid Teletext page!"); // no need to set ok to 'false'
++                          }
++                       else
++                          esyslog("ERROR: too many Teletext pages!"); // no need to set ok to 'false'
++                       p = NULL;
++                       }
++                 tpages[manualtpages] = 0;
++                 }
++              if (sscanf(tpidbuf, "%d", &tpid) != 1)
++                 return false;
++              }
+            if (caidbuf) {
+               char *p = caidbuf;
+               char *q;
+@@ -916,6 +963,7 @@ bool cChannel::Parse(const char *s)
+         free(sourcebuf);
+         free(vpidbuf);
+         free(apidbuf);
++        free(tpidbuf);
+         free(caidbuf);
+         free(namebuf);
+         if (!GetChannelID().Valid()) {
+diff --git a/channels.h b/channels.h
+index b465f6a..69f0340 100644
+--- a/channels.h
++++ b/channels.h
+@@ -35,6 +35,7 @@
+ #define MAXDPIDS 16 // dolby (AC3 + DTS)
+ #define MAXSPIDS 32 // subtitles
+ #define MAXCAIDS  8 // conditional access
++#define MAXTPAGES 8 // teletext pages
+ 
+ #define MAXLANGCODE1 4 // a 3 letter language code, zero terminated
+ #define MAXLANGCODE2 8 // up to two 3 letter language codes, separated by '+' and zero terminated
+@@ -133,6 +134,9 @@ private:
+   uint16_t compositionPageIds[MAXSPIDS];
+   uint16_t ancillaryPageIds[MAXSPIDS];
+   int tpid;
++  int manualtpages;
++  char tlangs[MAXTPAGES][MAXLANGCODE2];
++  int tpages[MAXTPAGES + 1]; // list is zero-terminated
+   int caids[MAXCAIDS + 1]; // list is zero-terminated
+   int nid;
+   int tid;
+@@ -192,6 +196,8 @@ public:
+   uint16_t CompositionPageId(int i) const { return (0 <= i && i < MAXSPIDS) ? compositionPageIds[i] : uint16_t(0); }
+   uint16_t AncillaryPageId(int i) const { return (0 <= i && i < MAXSPIDS) ? ancillaryPageIds[i] : uint16_t(0); }
+   int Tpid(void) const { return tpid; }
++  const char *Tlang(int i) const { return (0 <= i && i < MAXTPAGES) ? tlangs[i] : ""; }
++  const int TPages(int i) const { return (0 <= i && i < MAXTPAGES) ? tpages[i] : 0; }
+   const int *Caids(void) const { return caids; }
+   int Ca(int Index = 0) const { return Index < MAXCAIDS ? caids[Index] : 0; }
+   int Nid(void) const { return nid; }
+@@ -228,6 +234,7 @@ public:
+   void SetName(const char *Name, const char *ShortName, const char *Provider);
+   void SetPortalName(const char *PortalName);
+   void SetPids(int Vpid, int Ppid, int Vtype, int *Apids, char ALangs[][MAXLANGCODE2], int *Dpids, char DLangs[][MAXLANGCODE2], int *Spids, char SLangs[][MAXLANGCODE2], int Tpid);
++  void SetTPidData(char TLangs[][MAXLANGCODE2], int TPages[]);
+   void SetCaIds(const int *CaIds); // list must be zero-terminated
+   void SetCaDescriptors(int Level);
+   void SetLinkChannels(cLinkChannels *LinkChannels);
+diff --git a/device.c b/device.c
+index cb31b83..c05de91 100644
+--- a/device.c
++++ b/device.c
+@@ -18,6 +18,7 @@
+ #include "receiver.h"
+ #include "status.h"
+ #include "transfer.h"
++#include "vdrttxtsubshooks.h"
+ 
+ // --- cLiveSubtitle ---------------------------------------------------------
+ 
+@@ -1190,6 +1191,13 @@ int cDevice::PlayPesPacket(const uchar *Data, int Length, bool VideoOnly)
+                   }
+                break;
+           case 0xBD: { // private stream 1
++               // EBU Teletext data, ETSI EN 300 472
++               // if PES data header length = 24 and data_identifier = 0x10..0x1F (EBU Data)
++               if (Data[8] == 0x24 && Data[45] >= 0x10 && Data[45] < 0x20) {
++                  cVDRTtxtsubsHookListener::Hook()->PlayerTeletextData((uint8_t*)Data, Length);
++                  break;
++                  }
++
+                int PayloadOffset = Data[8] + 9;
+ 
+                // Compatibility mode for old subtitles plugin:
+@@ -1349,6 +1357,7 @@ int cDevice::PlayTs(const uchar *Data, int Length, bool VideoOnly)
+      tsToPesVideo.Reset();
+      tsToPesAudio.Reset();
+      tsToPesSubtitle.Reset();
++     tsToPesTeletext.Reset();
+      }
+   else if (Length < TS_SIZE) {
+      esyslog("ERROR: skipped %d bytes of TS fragment", Length);
+@@ -1394,6 +1403,17 @@ int cDevice::PlayTs(const uchar *Data, int Length, bool VideoOnly)
+                     if (!VideoOnly || HasIBPTrickSpeed())
+                        PlayTsSubtitle(Data, TS_SIZE);
+                     }
++                 else if (Pid == patPmtParser.Tpid()) {
++                    if (!VideoOnly || HasIBPTrickSpeed()) {
++                       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))
++                             cVDRTtxtsubsHookListener::Hook()->PlayerTeletextData((uchar *)p, l, false);
++                          tsToPesTeletext.Reset();
++                          }
++                       }
++                    }
+                  }
+               }
+            else if (Pid == patPmtParser.Ppid()) {
+diff --git a/device.h b/device.h
+index 897de2a..2e36351 100644
+--- a/device.h
++++ b/device.h
+@@ -499,6 +499,7 @@ private:
+   cTsToPes tsToPesVideo;
+   cTsToPes tsToPesAudio;
+   cTsToPes tsToPesSubtitle;
++  cTsToPes tsToPesTeletext;
+   bool isPlayingVideo;
+ protected:
+   const cPatPmtParser *PatPmtParser(void) const { return &patPmtParser; }
+diff --git a/pat.c b/pat.c
+index 9b3ded6..c687ca6 100644
+--- a/pat.c
++++ b/pat.c
+@@ -13,6 +13,7 @@
+ #include "libsi/section.h"
+ #include "libsi/descriptor.h"
+ #include "thread.h"
++#include "vdrttxtsubshooks.h"
+ 
+ #define PMT_SCAN_TIMEOUT  10 // seconds
+ 
+@@ -341,6 +342,9 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
+         char DLangs[MAXDPIDS][MAXLANGCODE2] = { "" };
+         char SLangs[MAXSPIDS][MAXLANGCODE2] = { "" };
+         int Tpid = 0;
++        char TLangs[MAXTPAGES][MAXLANGCODE2] = { "" };
++        int TPages[MAXTPAGES + 1] = { 0 };
++        int NumTPages = 0;
+         int NumApids = 0;
+         int NumDpids = 0;
+         int NumSpids = 0;
+@@ -426,8 +430,19 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
+                                     NumSpids++;
+                                     }
+                                  break;
+-                            case SI::TeletextDescriptorTag:
++                            case SI::TeletextDescriptorTag: {
+                                  Tpid = esPid;
++                                 SI::TeletextDescriptor *sd = (SI::TeletextDescriptor *)d;
++                                 SI::TeletextDescriptor::Teletext ttxt;
++                                 for (SI::Loop::Iterator it; sd->teletextLoop.getNext(ttxt, it); ) {
++                                     if ((NumTPages < MAXTPAGES) && ttxt.languageCode[0] && ((ttxt.getTeletextType() == 0x02) || (ttxt.getTeletextType() == 0x05))) {
++                                        char *s = TLangs[NumTPages];
++                                        strn0cpy(s, I18nNormalizeLanguageCode(ttxt.languageCode), MAXLANGCODE1);
++                                        TPages[NumTPages] = (ttxt.getTeletextPageNumber() & 0xff) | ((ttxt.getTeletextMagazineNumber() & 0xff) << 8) | ((ttxt.getTeletextType() & 0xff) << 16);
++                                        NumTPages++;
++                                        }
++                                     }
++                                 }
+                                  break;
+                             case SI::ISO639LanguageDescriptorTag: {
+                                  SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
+@@ -458,6 +473,16 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
+             }
+         if (Setup.UpdateChannels >= 2) {
+            Channel->SetPids(Vpid, Ppid, Vtype, Apids, ALangs, Dpids, DLangs, Spids, SLangs, Tpid);
++           if (NumTPages < MAXTPAGES) {
++              int manualPageNumber = cVDRTtxtsubsHookListener::Hook()->ManualPageNumber(Channel);
++              if (manualPageNumber) {
++                 char *s = TLangs[NumTPages];
++                 strn0cpy(s, "man", MAXLANGCODE1);
++                 TPages[NumTPages] = manualPageNumber;
++                 NumTPages++;
++                 }
++              }
++           Channel->SetTPidData(TLangs, TPages);
+            Channel->SetCaIds(CaDescriptors->CaIds());
+            Channel->SetSubtitlingDescriptors(SubtitlingTypes, CompositionPageIds, AncillaryPageIds);
+            }
+diff --git a/receiver.c b/receiver.c
+index f922e98..dab95b3 100644
+--- a/receiver.c
++++ b/receiver.c
+@@ -82,7 +82,7 @@ bool cReceiver::SetPids(const cChannel *Channel)
+             (Channel->Ppid() == Channel->Vpid() || AddPid(Channel->Ppid())) &&
+             AddPids(Channel->Apids()) &&
+             (!Setup.UseDolbyDigital || AddPids(Channel->Dpids())) &&
+-            AddPids(Channel->Spids());
++            AddPids(Channel->Spids()) && AddPid(Channel->Tpid());
+      }
+ return true;
+ }
+diff --git a/remux.c b/remux.c
+index 070a06a..55604a8 100644
+--- a/remux.c
++++ b/remux.c
+@@ -215,6 +215,30 @@ int cPatPmtGenerator::MakeSubtitlingDescriptor(uchar *Target, const char *Langua
+   return i;
+ }
+ 
++int cPatPmtGenerator::MakeTeletextDescriptor(uchar *Target, const cChannel *Channel)
++{
++  int i = 0, j = 0;
++  Target[i++] = SI::TeletextDescriptorTag;
++  int l = i;
++  Target[i++] = 0x00; // length
++  for (int n = 0; Channel->TPages(n); n++) {
++      const char *Language = Channel->Tlang(n);
++      int Pages = Channel->TPages(n);
++      Target[i++] = *Language++;
++      Target[i++] = *Language++;
++      Target[i++] = *Language++;
++      Target[i++] = ((Pages >> 13) & 0xf8) | ((Pages >> 8) & 0x7); // teletext type & magazine number
++      Target[i++] = Pages & 0xff; // teletext page number
++      j++;
++      }
++  if (j > 0) {
++     Target[l] = j * 5; // update length
++     IncEsInfoLength(i);
++     return i;
++     }
++  return 0;
++}
++
+ int cPatPmtGenerator::MakeLanguageDescriptor(uchar *Target, const char *Language)
+ {
+   int i = 0;
+@@ -296,6 +320,7 @@ void cPatPmtGenerator::GeneratePmt(const cChannel *Channel)
+   if (Channel) {
+      int Vpid = Channel->Vpid();
+      int Ppid = Channel->Ppid();
++     int Tpid = Channel->Tpid();
+      uchar *p = buf;
+      int i = 0;
+      p[i++] = 0x02; // table id
+@@ -330,6 +355,10 @@ void cPatPmtGenerator::GeneratePmt(const cChannel *Channel)
+          i += MakeStream(buf + i, 0x06, Channel->Spid(n));
+          i += MakeSubtitlingDescriptor(buf + i, Channel->Slang(n), Channel->SubtitlingType(n), Channel->CompositionPageId(n), Channel->AncillaryPageId(n));
+          }
++     if (Tpid) {
++        i += MakeStream(buf + i, 0x06, Tpid);
++        i += MakeTeletextDescriptor(buf + i, Channel);
++        }
+ 
+      int sl = i - SectionLength - 2 + 4; // -2 = SectionLength storage, +4 = length of CRC
+      buf[SectionLength] |= (sl >> 8) & 0x0F;
+@@ -403,6 +432,7 @@ void cPatPmtParser::Reset(void)
+   pmtPid = -1;
+   vpid = vtype = 0;
+   ppid = 0;
++  tpid = 0;
+ }
+ 
+ void cPatPmtParser::ParsePat(const uchar *Data, int Length)
+@@ -488,6 +518,7 @@ void cPatPmtParser::ParsePmt(const uchar *Data, int Length)
+      int NumSpids = 0;
+      vpid = vtype = 0;
+      ppid = 0;
++     tpid = 0;
+      apids[0] = 0;
+      dpids[0] = 0;
+      spids[0] = 0;
+@@ -586,6 +617,10 @@ void cPatPmtParser::ParsePmt(const uchar *Data, int Length)
+                                     spids[NumSpids]= 0;
+                                     }
+                                  break;
++                            case SI::TeletextDescriptorTag:
++                                 dbgpatpmt(" teletext");
++                                 tpid = stream.getPid();
++                                 break;
+                             case SI::ISO639LanguageDescriptorTag: {
+                                  SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
+                                  dbgpatpmt(" '%s'", ld->languageCode);
+diff --git a/remux.h b/remux.h
+index 1115c4a..5d9af66 100644
+--- a/remux.h
++++ b/remux.h
+@@ -170,6 +170,7 @@ protected:
+   int MakeStream(uchar *Target, uchar Type, int Pid);
+   int MakeAC3Descriptor(uchar *Target);
+   int MakeSubtitlingDescriptor(uchar *Target, const char *Language, uchar SubtitlingType, uint16_t CompositionPageId, uint16_t AncillaryPageId);
++  int MakeTeletextDescriptor(uchar *Target, const cChannel *Channel);
+   int MakeLanguageDescriptor(uchar *Target, const char *Language);
+   int MakeCRC(uchar *Target, const uchar *Data, int Length);
+   void GeneratePmtPid(const cChannel *Channel);
+@@ -215,6 +216,7 @@ private:
+   int vpid;
+   int ppid;
+   int vtype;
++  int tpid;
+   int apids[MAXAPIDS + 1]; // list is zero-terminated
+   int atypes[MAXAPIDS + 1]; // list is zero-terminated
+   char alangs[MAXAPIDS][MAXLANGCODE2];
+@@ -259,6 +261,7 @@ public:
+   int Vtype(void) const { return vtype; }
+        ///< Returns the video stream type as defined by the current PMT, or 0 if no video
+        ///< stream type has been detected, yet.
++  int Tpid(void) { return tpid; }
+   const int *Apids(void) const { return apids; }
+   const int *Dpids(void) const { return dpids; }
+   const int *Spids(void) const { return spids; }
+diff --git a/vdrttxtsubshooks.c b/vdrttxtsubshooks.c
+new file mode 100644
+index 0000000..4151552
+--- /dev/null
++++ b/vdrttxtsubshooks.c
+@@ -0,0 +1,63 @@
++/*
++ * 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 <stdlib.h>
++#include <stdio.h>
++#include <stdint.h>
++
++#include "vdrttxtsubshooks.h"
++
++// XXX Really should be a list...
++static cVDRTtxtsubsHookListener *gListener;
++
++// ------ class cVDRTtxtsubsHookProxy ------
++
++class cVDRTtxtsubsHookProxy : public cVDRTtxtsubsHookListener
++{
++ public:
++  virtual void HideOSD(void) { if(gListener) gListener->HideOSD(); };
++  virtual void ShowOSD(void) { if(gListener) gListener->ShowOSD(); };
++  virtual void PlayerTeletextData(uint8_t *p, int length, bool IsPesRecording)
++    { if(gListener) gListener->PlayerTeletextData(p, length, IsPesRecording); };
++  virtual int ManualPageNumber(const cChannel *channel)
++    { if(gListener) return gListener->ManualPageNumber(channel); else return 0; };
++};
++
++
++// ------ class cVDRTtxtsubsHookListener ------
++
++cVDRTtxtsubsHookListener::~cVDRTtxtsubsHookListener()
++{
++  gListener = 0;
++}
++
++void cVDRTtxtsubsHookListener::HookAttach(void)
++{
++  gListener = this;
++  //printf("cVDRTtxtsubsHookListener::HookAttach\n");
++}
++
++static cVDRTtxtsubsHookProxy gProxy;
++
++cVDRTtxtsubsHookListener *cVDRTtxtsubsHookListener::Hook(void)
++{
++  return &gProxy;
++}
++
+diff --git a/vdrttxtsubshooks.h b/vdrttxtsubshooks.h
+new file mode 100644
+index 0000000..89d4b78
+--- /dev/null
++++ b/vdrttxtsubshooks.h
+@@ -0,0 +1,45 @@
++/*
++ * 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
++ *
++ */
++
++#ifndef __VDRTTXTSUBSHOOKS_H
++#define __VDRTTXTSUBSHOOKS_H
++
++#define TTXTSUBSVERSNUM 1
++
++class cDevice;
++class cChannel;
++
++class cVDRTtxtsubsHookListener {
++ public:
++  cVDRTtxtsubsHookListener(void) {};
++  virtual ~cVDRTtxtsubsHookListener();
++
++  void HookAttach(void);
++
++  virtual void HideOSD(void) {};
++  virtual void ShowOSD(void) {};
++  virtual void PlayerTeletextData(uint8_t *p, int length, bool IsPesRecording = true) {};
++  virtual int ManualPageNumber(const cChannel *channel) { return 0; };
++
++  // used by VDR to call hook listeners
++  static cVDRTtxtsubsHookListener *Hook(void);
++};
++
++#endif