dashdemux: Export the period start time to the base class

https://bugzilla.gnome.org/show_bug.cgi?id=754222

3 files changed, 26 insertions, 3 deletions

diff --git a/ext/dash/gstdashdemux.c b/ext/dash/gstdashdemux.c
index fd9bb3f7e..91de3c620 100644
--- a/ext/dash/gstdashdemux.c
+++ b/ext/dash/gstdashdemux.c
@@ -327,6 +327,14 @@ gst_dash_demux_get_presentation_offset (GstAdaptiveDemux * demux,
       dashstream->index);
 }
 
+static GstClockTime
+gst_dash_demux_get_period_start_time (GstAdaptiveDemux * demux)
+{
+  GstDashDemux *dashdemux = GST_DASH_DEMUX_CAST (demux);
+
+  return gst_mpd_parser_get_period_start_time (dashdemux->client);
+}
+
 static void
 gst_dash_demux_class_init (GstDashDemuxClass * klass)
 {
@@ -411,6 +419,8 @@ gst_dash_demux_class_init (GstDashDemuxClass * klass)
       gst_dash_demux_get_live_seek_range;
   gstadaptivedemux_class->get_presentation_offset =
       gst_dash_demux_get_presentation_offset;
+  gstadaptivedemux_class->get_period_start_time =
+      gst_dash_demux_get_period_start_time;
 
   gstadaptivedemux_class->finish_fragment =
       gst_dash_demux_stream_fragment_finished;
diff --git a/ext/dash/gstmpdparser.c b/ext/dash/gstmpdparser.c
index 02422b145..7312cf953 100644
--- a/ext/dash/gstmpdparser.c
+++ b/ext/dash/gstmpdparser.c
@@ -3757,14 +3757,26 @@ gst_mpd_parser_get_stream_presentation_offset (GstMpdClient * client,
 {
   GstActiveStream *stream = NULL;
 
-  g_return_val_if_fail (client != NULL, FALSE);
-  g_return_val_if_fail (client->active_streams != NULL, FALSE);
+  g_return_val_if_fail (client != NULL, 0);
+  g_return_val_if_fail (client->active_streams != NULL, 0);
   stream = g_list_nth_data (client->active_streams, stream_idx);
-  g_return_val_if_fail (stream != NULL, FALSE);
+  g_return_val_if_fail (stream != NULL, 0);
 
   return stream->presentationTimeOffset;
 }
 
+GstClockTime
+gst_mpd_parser_get_period_start_time (GstMpdClient * client)
+{
+  GstStreamPeriod *stream_period = NULL;
+
+  g_return_val_if_fail (client != NULL, 0);
+  stream_period = gst_mpdparser_get_stream_period (client);
+  g_return_val_if_fail (stream_period != NULL, 0);
+
+  return stream_period->start;
+}
+
 /**
  * gst_mpd_client_get_utc_timing_sources:
  * @client: #GstMpdClient to check for UTCTiming elements
diff --git a/ext/dash/gstmpdparser.h b/ext/dash/gstmpdparser.h
index b31b7e6c3..ff380e298 100644
--- a/ext/dash/gstmpdparser.h
+++ b/ext/dash/gstmpdparser.h
@@ -527,6 +527,7 @@ gboolean gst_mpd_client_seek_to_time (GstMpdClient * client, GDateTime * time);
 gint gst_mpd_client_check_time_position (GstMpdClient * client, GstActiveStream * stream, GstClockTime ts, gint64 * diff);
 GstClockTime gst_mpd_parser_get_stream_presentation_offset (GstMpdClient *client, guint stream_idx);
 gchar** gst_mpd_client_get_utc_timing_sources (GstMpdClient *client, guint methods, GstMPDUTCTimingType *selected_method);
+GstClockTime gst_mpd_parser_get_period_start_time (GstMpdClient *client);
 
 /* Period selection */
 guint gst_mpd_client_get_period_index_at_time (GstMpdClient * client, GstDateTime * time);