subparse: Add reference timestamp meta in GstBuffer for HLS webvtt

[platform/upstream/gstreamer.git] / gst / subparse / gstsubparse.c

diff --git a/gst/subparse/gstsubparse.c b/gst/subparse/gstsubparse.c
index 0b698f5..c807814 100644 (file)
--- a/gst/subparse/gstsubparse.c
+++ b/gst/subparse/gstsubparse.c
@@ -1982,6 +1982,9 @@ handle_buffer (GstSubParse * self, GstBuffer * buf)
 #ifdef TIZEN_FEATURE_SUBPARSE_MODIFICATION
   GstMessage *m = NULL;
 #endif
+#ifdef TIZEN_FEATURE_HLS_WEBVTT
+  GstClockTime reference_time = GST_CLOCK_TIME_NONE;
+#endif
 
   if (self->first_buffer) {
     GstMapInfo map;
@@ -1994,6 +1997,11 @@ handle_buffer (GstSubParse * self, GstBuffer * buf)
     self->state.fps_d = self->fps_d;
   }
 
+#ifdef TIZEN_FEATURE_HLS_WEBVTT
+  if (GST_BUFFER_IS_DISCONT (buf) && GST_BUFFER_PTS_IS_VALID (buf))
+    reference_time = GST_BUFFER_PTS (buf);
+#endif
+
   feed_textbuf (self, buf);
 
   /* make sure we know the format */
@@ -2101,6 +2109,17 @@ handle_buffer (GstSubParse * self, GstBuffer * buf)
       GST_BUFFER_TIMESTAMP (buf) = self->state.start_time;
       GST_BUFFER_DURATION (buf) = self->state.duration;
 
+#ifdef TIZEN_FEATURE_HLS_WEBVTT
+      if ((self->parser_type == GST_SUB_PARSE_FORMAT_VTT)
+          && GST_CLOCK_TIME_IS_VALID (reference_time)) {
+        GstCaps *sink_caps = gst_pad_get_current_caps (self->sinkpad);
+        if (sink_caps) {
+          gst_buffer_add_reference_timestamp_meta (buf, sink_caps,
+              reference_time, GST_CLOCK_TIME_NONE);
+          gst_caps_unref (sink_caps);
+        }
+      }
+#endif
       /* in some cases (e.g. tmplayer) we can only determine the duration
        * of a text chunk from the timestamp of the next text chunk; in those
        * cases, we probably want to limit the duration to something