mkv: let the track init its es_format_t

So it's not created in a funny state.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/demux/mkv/matroska_segment_parse.cpp

@@ -204,9 +204,6 @@ void matroska_segment_c::ParseTrackEntry( const KaxTrackEntry *m )
 {
     bool bSupported = true;
 
-    /* Init the track */
-    mkv_track_t track;
-
     EbmlUInteger *pTrackType = static_cast<EbmlUInteger*>(m->FindElt(EBML_INFO(KaxTrackType)));
     uint8 ttype;
     if (likely(pTrackType != NULL))
@@ -214,28 +211,27 @@ void matroska_segment_c::ParseTrackEntry( const KaxTrackEntry *m )
     else
         ttype = 0;
 
+    enum es_format_category_e es_cat;
     switch( ttype )
     {
         case track_audio:
-            es_format_Init( &track.fmt, AUDIO_ES, 0);
-            track.fmt.audio.i_channels = 1;
-            track.fmt.audio.i_rate = 8000;
-            track.fmt.psz_language = strdup("English");
+            es_cat = AUDIO_ES;
             break;
         case track_video:
-            es_format_Init( &track.fmt, VIDEO_ES, 0);
-            track.fmt.psz_language = strdup("English");
+            es_cat = VIDEO_ES;
             break;
         case track_subtitle:
         case track_buttons:
-            es_format_Init( &track.fmt, SPU_ES, 0);
-            track.fmt.psz_language = strdup("English");
+            es_cat = SPU_ES;
             break;
         default:
-            es_format_Init( &track.fmt, UNKNOWN_ES, 0);
+            es_cat = UNKNOWN_ES;
             break;
     }
 
+    /* Init the track */
+    mkv_track_t track( es_cat );
+
     MkvTree( sys.demuxer, 2, "Track Entry" );
 
     struct MetaDataCapture {

modules/demux/mkv/mkv.cpp

@@ -528,7 +528,6 @@ void BlockDecode( demux_t *p_demux, KaxBlock *block, KaxSimpleBlock *simpleblock
 
         if( !b )
         {
-            track.b_inited = false;
             if( track.fmt.i_cat == VIDEO_ES || track.fmt.i_cat == AUDIO_ES )
                 track.i_last_dts = VLC_TS_INVALID;
             return;
@@ -804,3 +803,49 @@ static int Demux( demux_t *p_demux)
 
     return 1;
 }
+
+mkv_track_t::mkv_track_t(enum es_format_category_e es_cat) :
+    b_default(true)
+  ,b_enabled(true)
+  ,b_forced(false)
+  ,i_number(0)
+  ,i_extra_data(0)
+  ,p_extra_data(NULL)
+  ,b_dts_only(false)
+  ,b_pts_only(false)
+  ,b_no_duration(false)
+  ,i_default_duration(0)
+  ,f_timecodescale(1.0)
+  ,i_last_dts(0)
+  ,i_skip_until_fpos(-1)
+  ,f_fps(0)
+  ,p_es(NULL)
+  ,i_original_rate(0)
+  ,i_chans_to_reorder(0)
+  ,p_sys(NULL)
+  ,b_discontinuity(false)
+  ,i_compression_type(MATROSKA_COMPRESSION_NONE)
+  ,i_encoding_scope(MATROSKA_ENCODING_SCOPE_ALL_FRAMES)
+  ,p_compression_data(NULL)
+  ,i_seek_preroll(0)
+  ,i_codec_delay(0)
+{
+    std::memset( &pi_chan_table, 0, sizeof( pi_chan_table ) );
+
+    es_format_Init(&fmt, es_cat, 0);
+
+    switch( es_cat )
+    {
+        case AUDIO_ES:
+            fmt.audio.i_channels = 1;
+            fmt.audio.i_rate = 8000;
+            /* fall through */
+        case VIDEO_ES:
+        case SPU_ES:
+            fmt.psz_language = strdup("English");
+            break;
+        default:
+            // no language needed
+            break;
+    }
+}

modules/demux/mkv/mkv.hpp

@@ -183,34 +183,7 @@ public:
 class mkv_track_t
 {
     public:
-        mkv_track_t() :
-            b_default(true)
-          ,b_enabled(true)
-          ,b_forced(false)
-          ,i_number(0)
-          ,i_extra_data(0)
-          ,p_extra_data(NULL)
-          ,b_dts_only(false)
-          ,b_pts_only(false)
-          ,b_no_duration(false)
-          ,i_default_duration(0)
-          ,f_timecodescale(1.0)
-          ,i_last_dts(0)
-          ,i_skip_until_fpos(-1)
-          ,f_fps(0)
-          ,p_es(NULL)
-          ,i_original_rate(0)
-          ,i_chans_to_reorder(0)
-          ,p_sys(NULL)
-          ,b_discontinuity(false)
-          ,i_compression_type(MATROSKA_COMPRESSION_NONE)
-          ,i_encoding_scope(MATROSKA_ENCODING_SCOPE_ALL_FRAMES)
-          ,p_compression_data(NULL)
-          ,i_seek_preroll(0)
-          ,i_codec_delay(0)
-        {
-            std::memset( &pi_chan_table, 0, sizeof( pi_chan_table ) );
-        }
+        mkv_track_t(enum es_format_category_e es_cat);
 
         typedef unsigned int track_id_t;