tsbase: parse the mgt and add listed EIT/ETT pids to the known psi

This will make tsbase also parse the EITs and ETTs from ATSC streams that have
their pids reported on the MGT and post to the bus

https://bugzilla.gnome.org/show_bug.cgi?id=730435

diff --git a/gst/mpegtsdemux/mpegtsbase.c b/gst/mpegtsdemux/mpegtsbase.c
index 0fef7c720d40fff91a61ccf75ddd97091d7b0d47..101f999e685062f013396cc73be29dd4102d8097 100644 (file)
--- a/gst/mpegtsdemux/mpegtsbase.c
+++ b/gst/mpegtsdemux/mpegtsbase.c
@@ -88,6 +88,8 @@ static GstStateChangeReturn mpegts_base_change_state (GstElement * element,
     GstStateChange transition);
 static gboolean mpegts_base_get_tags_from_eit (MpegTSBase * base,
     GstMpegTsSection * section);
+static gboolean mpegts_base_parse_atsc_mgt (MpegTSBase * base,
+    GstMpegTsSection * section);
 static gboolean remove_each_program (gpointer key, MpegTSBaseProgram * program,
     MpegTSBase * base);
 
@@ -915,6 +917,9 @@ mpegts_base_handle_psi (MpegTSBase * base, GstMpegTsSection * section)
       /* some tag xtraction + posting */
       post_message = mpegts_base_get_tags_from_eit (base, section);
       break;
+    case GST_MPEGTS_SECTION_ATSC_MGT:
+      post_message = mpegts_base_parse_atsc_mgt (base, section);
+      break;
     default:
       break;
   }
@@ -926,6 +931,29 @@ mpegts_base_handle_psi (MpegTSBase * base, GstMpegTsSection * section)
   gst_mpegts_section_unref (section);
 }
 
+static gboolean
+mpegts_base_parse_atsc_mgt (MpegTSBase * base, GstMpegTsSection * section)
+{
+  const GstMpegTsAtscMGT *mgt;
+  gint i;
+
+  mgt = gst_mpegts_section_get_atsc_mgt (section);
+  if (G_UNLIKELY (mgt == NULL))
+    return FALSE;
+
+  for (i = 0; i < mgt->tables->len; ++i) {
+    GstMpegTsAtscMGTTable *table = g_ptr_array_index (mgt->tables, i);
+
+    if ((table->table_type >= GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_EIT0 &&
+            table->table_type <= GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_EIT127) ||
+        (table->table_type >= GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_ETT0 &&
+            table->table_type <= GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_ETT127)) {
+      MPEGTS_BIT_SET (base->known_psi, table->pid);
+    }
+  }
+
+  return TRUE;
+}
 
 static gboolean
 mpegts_base_get_tags_from_eit (MpegTSBase * base, GstMpegTsSection * section)