Implemented preferred audio languages

HISTORY

@@ -3266,3 +3266,6 @@ Video Disk Recorder Revision History
 - Skins need to implement the new cSkinDisplayTrack class to display the audio
   track menu.
 - Fixed reusing OSD in cDvbSpuDecoder (thanks to Reinhard Nissl).
+- The new setup option "DVB/Audio languages" can be used to control which audio
+  language shall be selected in case a channel broadcasts in different languages
+  (see MANUAL for details). 

MANUAL

@@ -580,6 +580,15 @@ Version 1.2
                          updates and also add newly found channels, and '4' will
                          also add newly found transponders.
 
+  Audio languages = 0    Some tv stations broadcast various audio tracks in different
+                         languages. This option allows you to define which language(s)
+                         you prefer in such cases. By default, or if none of the
+                         preferred languages is broadcast, the first audio track will
+                         be selected when switching to such a channel. If this option
+                         is set to a non-zero value, the menu page will contain that
+                         many "Audio language" options which allow you to select the
+                         individual preferred languages.
+
   LNB:
 
   SLOF               = 11700  The switching frequency (in MHz) between low and

config.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: config.c 1.128 2004/10/31 16:17:39 kls Exp $
+ * $Id: config.c 1.129 2005/01/04 13:48:49 kls Exp $
  */
 
 #include "config.h"
@@ -262,6 +262,7 @@ cSetup::cSetup(void)
   TimeTransponder = 0;
   MarginStart = 2;
   MarginStop = 10;
+  AudioLanguages[0] = -1;
   EPGLanguages[0] = -1;
   EPGScanTimeout = 5;
   EPGBugfixLevel = 2;
@@ -415,6 +416,7 @@ bool cSetup::Parse(const char *Name, const char *Value)
   else if (!strcasecmp(Name, "TimeTransponder"))     TimeTransponder    = atoi(Value);
   else if (!strcasecmp(Name, "MarginStart"))         MarginStart        = atoi(Value);
   else if (!strcasecmp(Name, "MarginStop"))          MarginStop         = atoi(Value);
+  else if (!strcasecmp(Name, "AudioLanguages"))      return ParseLanguages(Value, AudioLanguages);
   else if (!strcasecmp(Name, "EPGLanguages"))        return ParseLanguages(Value, EPGLanguages);
   else if (!strcasecmp(Name, "EPGScanTimeout"))      EPGScanTimeout     = atoi(Value);
   else if (!strcasecmp(Name, "EPGBugfixLevel"))      EPGBugfixLevel     = atoi(Value);
@@ -475,6 +477,7 @@ bool cSetup::Save(void)
   Store("TimeTransponder",    TimeTransponder);
   Store("MarginStart",        MarginStart);
   Store("MarginStop",         MarginStop);
+  StoreLanguages("AudioLanguages", AudioLanguages);
   StoreLanguages("EPGLanguages", EPGLanguages);
   Store("EPGScanTimeout",     EPGScanTimeout);
   Store("EPGBugfixLevel",     EPGBugfixLevel);

config.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: config.h 1.206 2004/11/22 16:49:39 kls Exp $
+ * $Id: config.h 1.207 2005/01/04 13:47:38 kls Exp $
  */
 
 #ifndef __CONFIG_H
@@ -222,6 +222,7 @@ public:
   int TimeSource;
   int TimeTransponder;
   int MarginStart, MarginStop;
+  int AudioLanguages[I18nNumLanguages + 1];
   int EPGLanguages[I18nNumLanguages + 1];
   int EPGScanTimeout;
   int EPGBugfixLevel;

device.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: device.c 1.66 2005/01/04 13:13:24 kls Exp $
+ * $Id: device.c 1.67 2005/01/04 15:38:46 kls Exp $
  */
 
 #include "device.h"
@@ -541,11 +541,24 @@ eSetChannelResult cDevice::SetChannel(const cChannel *Channel, bool LiveView)
 
   if (Result == scrOk) {
      if (LiveView && IsPrimaryDevice()) {
+        // Set the available audio tracks:
         ClrAvailableTracks();
         for (int i = 0; i < MAXAPIDS; i++) {
             SetAvailableTrack(ttAudio, i, Channel->Apid(i), Channel->Alang(i));
             SetAvailableTrack(ttDolby, i, Channel->Dpid(i), Channel->Dlang(i));
             }
+        // Select the preferred audio track:
+        eTrackType PreferredTrack = ttAudioFirst;
+        int LanguagePreference = -1;
+        for (int i = ttAudioFirst; i <= ttDolbyLast; i++) {
+            const tTrackId *TrackId = GetTrack(eTrackType(i));
+            if (TrackId && TrackId->id && I18nIsPreferredLanguage(Setup.AudioLanguages, I18nLanguageIndex(TrackId->language), LanguagePreference))
+               PreferredTrack = eTrackType(i);
+            }
+        // Make sure we're set to an available audio track:
+        const tTrackId *Track = GetTrack(GetCurrentAudioTrack());
+        if (!Track || !Track->id || PreferredTrack != GetCurrentAudioTrack())
+           SetCurrentAudioTrack(PreferredTrack);
         currentChannel = Channel->Number();
         }
      cStatus::MsgChannelSwitch(this, Channel->Number()); // only report status if channel switch successfull

menu.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 1.327 2005/01/04 13:40:38 kls Exp $
+ * $Id: menu.c 1.328 2005/01/05 10:26:59 kls Exp $
  */
 
 #include "menu.h"
@@ -1911,6 +1911,9 @@ eOSState cMenuSetupEPG::ProcessKey(eKeys Key)
 
 class cMenuSetupDVB : public cMenuSetupBase {
 private:
+  int originalNumAudioLanguages;
+  int numAudioLanguages;
+  void Setup(void);
   const char *updateChannelsTexts[5];
 public:
   cMenuSetupDVB(void);
@@ -1919,6 +1922,9 @@ public:
 
 cMenuSetupDVB::cMenuSetupDVB(void)
 {
+  for (numAudioLanguages = 0; numAudioLanguages < I18nNumLanguages && data.AudioLanguages[numAudioLanguages] >= 0; numAudioLanguages++)
+      ;
+  originalNumAudioLanguages = numAudioLanguages;
   updateChannelsTexts[0] = tr("no");
   updateChannelsTexts[1] = tr("names only");
   updateChannelsTexts[2] = tr("names and PIDs");
@@ -1926,22 +1932,58 @@ cMenuSetupDVB::cMenuSetupDVB(void)
   updateChannelsTexts[4] = tr("add new transponders");
 
   SetSection(tr("DVB"));
+  Setup();
+}
+
+void cMenuSetupDVB::Setup(void)
+{
+  int current = Current();
+
+  Clear();
+
   Add(new cMenuEditIntItem( tr("Setup.DVB$Primary DVB interface"), &data.PrimaryDVB, 1, cDevice::NumDevices()));
   Add(new cMenuEditBoolItem(tr("Setup.DVB$Video format"),          &data.VideoFormat, "4:3", "16:9"));
   Add(new cMenuEditStraItem(tr("Setup.DVB$Update channels"),       &data.UpdateChannels, 5, updateChannelsTexts));
+  Add(new cMenuEditIntItem( tr("Setup.DVB$Audio languages"),       &numAudioLanguages, 0, I18nNumLanguages));
+  for (int i = 0; i < numAudioLanguages; i++)
+     Add(new cMenuEditStraItem(tr("Setup.EPG$Audio language"),     &data.AudioLanguages[i], I18nNumLanguages, I18nLanguages()));
+
+  SetCurrent(Get(current));
+  Display();
 }
 
 eOSState cMenuSetupDVB::ProcessKey(eKeys Key)
 {
-  int oldPrimaryDVB = Setup.PrimaryDVB;
-  bool oldVideoFormat = Setup.VideoFormat;
+  int oldPrimaryDVB = ::Setup.PrimaryDVB;
+  bool oldVideoFormat = ::Setup.VideoFormat;
+  int oldnumAudioLanguages = numAudioLanguages;
   eOSState state = cMenuSetupBase::ProcessKey(Key);
 
+  if (Key != kNone) {
+     if (numAudioLanguages != oldnumAudioLanguages) {
+        for (int i = oldnumAudioLanguages; i < numAudioLanguages; i++) {
+            data.AudioLanguages[i] = 0;
+            for (int l = 0; l < I18nNumLanguages; l++) {
+                int k;
+                for (k = 0; k < oldnumAudioLanguages; k++) {
+                    if (data.AudioLanguages[k] == l)
+                       break;
+                    }
+                if (k >= oldnumAudioLanguages) {
+                   data.AudioLanguages[i] = l;
+                   break;
+                   }
+                }
+            }
+        data.AudioLanguages[numAudioLanguages] = -1;
+        Setup();
+        }
+     }
   if (state == osBack && Key == kOk) {
-     if (Setup.PrimaryDVB != oldPrimaryDVB)
+     if (::Setup.PrimaryDVB != oldPrimaryDVB)
         state = osSwitchDvb;
-     if (Setup.VideoFormat != oldVideoFormat)
-        cDevice::PrimaryDevice()->SetVideoFormat(Setup.VideoFormat);
+     if (::Setup.VideoFormat != oldVideoFormat)
+        cDevice::PrimaryDevice()->SetVideoFormat(::Setup.VideoFormat);
      }
   return state;
 }