Fixes #10820. Add iso-639 language code to teletext and dvb subtitles…

… extracted by mythccextractor.

When an ISO-639 language code is not found the string "und" is used instead.

Signed-off-by: Daniel Kristjansson <danielk@cuymedia.net>

mythtv/libs/libmythtv/avformatdecoder.cpp

@@ -2240,7 +2240,19 @@ void AvFormatDecoder::DoFastForwardSeek(long long desiredFrame, bool &needflush)
     DecoderBase::DoFastForwardSeek(desiredFrame, needflush);
     return;
 }
+///Returns TeleText language
+int AvFormatDecoder::GetTeletextLanguage(uint lang_idx) const
+{
+    for (uint i = 0; i < (uint) tracks[kTrackTypeTeletextCaptions].size(); i++)
+    {
+        if (tracks[kTrackTypeTeletextCaptions][i].language_index == lang_idx)
+        {
+             return tracks[kTrackTypeTeletextCaptions][i].language;
+        }
+    }
 
+    return iso639_str3_to_key("und");
+}
 /// Returns DVD Subtitle language
 int AvFormatDecoder::GetSubtitleLanguage(uint subtitle_index, uint stream_index)
 {

mythtv/libs/libmythtv/avformatdecoder.h

@@ -176,6 +176,7 @@ class AvFormatDecoder : public DecoderBase
     virtual bool SetVideoByComponentTag(int tag);
 
     // Stream language info
+    virtual int GetTeletextLanguage(uint lang_idx) const;
     virtual int GetSubtitleLanguage(uint subtitle_index, uint stream_index);
     virtual int GetCaptionLanguage(TrackTypes trackType, int service_num);
     virtual int GetAudioLanguage(uint audio_index, uint stream_index);

mythtv/libs/libmythtv/mythccextractorplayer.cpp

@@ -364,7 +364,7 @@ void MythCCExtractorPlayer::Process608Captions(uint flags)
 
                 QString lang = iso639_key_to_str3(langCode);
                 lang = iso639_is_key_undefined(langCode) ? "und" : lang;
-                
+
                 QString service_key = QString("cc%1").arg(idx + 1);
                 QString filename = QString("%1.%2%3-%4.%5.srt")
                     .arg(m_baseName).arg(stream_id_str).arg("608")
@@ -558,7 +558,7 @@ void MythCCExtractorPlayer::IngestTeletext(void)
                                to_string_list(*subpage));
             }
         }
-        
+
         (*ttxit).reader->ClearUpdatedPages();
     }
 }
@@ -579,12 +579,21 @@ void MythCCExtractorPlayer::ProcessTeletext(void)
             if ((*it).empty())
                 continue; // Skip empty subtitle streams.
 
-            int page = it.key();
+            uint page = it.key();
 
             if (!(*ttxit).srtwriters[page])
             {
-                QString filename = QString("%1.%2ttx-0x%3.srt")
+                int langCode = 0;
+                AvFormatDecoder *avd = dynamic_cast<AvFormatDecoder *>(decoder);
+
+                if (avd)
+                    langCode = avd->GetTeletextLanguage(page);
+
+                QString lang = iso639_key_to_str3(langCode);
+                lang = iso639_is_key_undefined(langCode) ? "und" : lang;
+                QString filename = QString("%1-%2.%3ttx-0x%4.srt")
                     .arg(m_baseName)
+                    .arg(lang)
                     .arg(stream_id_str)
                     .arg(page, 3, 16, QChar('0'));
 
@@ -646,7 +655,7 @@ void MythCCExtractorPlayer::IngestDVBSubtitles(void)
             subtitles->buffers.pop_front();
 
             const QSize v_size =
-                QSize(GetVideoSize().width()*4, GetVideoSize().height()*4); 
+                QSize(GetVideoSize().width()*4, GetVideoSize().height()*4);
             QImage sub_pict(v_size, QImage::Format_ARGB32);
             sub_pict.fill(0);
 
@@ -715,9 +724,19 @@ void MythCCExtractorPlayer::ProcessDVBSubtitles(uint flags)
 {
     // Process (DVB) subtitle streams.
     DVBSubInfo::iterator subit = m_dvbsub_info.begin();
+    int subtitleStreamCount = 0;
     for (; subit != m_dvbsub_info.end(); ++subit)
     {
-        QString dir_name = QString(m_baseName + ".dvb-%1").arg(subit.key());
+        int langCode = 0;
+        AvFormatDecoder *avd = dynamic_cast<AvFormatDecoder *>(decoder);
+        int idx = subit.key();
+        if (avd)
+            langCode = avd->GetSubtitleLanguage(subtitleStreamCount, idx);
+        subtitleStreamCount++;
+
+        QString lang = iso639_key_to_str3(langCode);
+        lang = iso639_is_key_undefined(langCode) ? "und" : lang;
+        QString dir_name = QString(m_baseName + "-%1.dvb-%2").arg(lang).arg(subit.key());
         if (!m_workingDir.exists(dir_name) && !m_workingDir.mkdir(dir_name))
         {
             LOG(VB_GENERAL, LOG_ERR, QString("Can't create directory '%1'")