customized videosink in playbin with subtitles won't play

[kastagir]

Hi

I wrote a player using gstreamer 0.10. Now I'm trying to port it to
gstreamer 1.0. Unfortunately I have encountered a problem. I used playbin2
element and customized videosink with timeoverlay and xvimagesink. After
setting uri and suburi properties I can see movie with subtitles and time in
left corner.


#include <gst/gst.h>
   
int main(int argc, char *argv[]) {
  GstElement *pipeline, *bin, *time, *sink;
  GstPad *pad, *ghost_pad;
  GstBus *bus;
  GstMessage *msg;
   
  /* Initialize GStreamer */
  gst_init (&argc, &argv);
   
  /* Build the pipeline */
  /* GST 0.10 */
  /*pipeline = gst_parse_launch ("playbin2 uri=file:///home/kuba/test.avi",
NULL);*/  // THIS WORKS
  /*pipeline = gst_parse_launch ("playbin2 uri=file:///home/kuba/test.avi
suburi=file:///home/kuba/test.txt", NULL);*/ // THIS WORKS TOO
  /*GST 1.0 */
  /*pipeline = gst_parse_launch ("playbin uri=file:///home/kuba/test.avi",
NULL);*/  // THIS WORKS
  pipeline = gst_parse_launch ("playbin uri=file:///home/kuba/test.avi
suburi=file:///home/kuba/test.txt", NULL); // THIS WON'T PLAY

  /* Create the elements inside the sink bin */
  time = gst_element_factory_make ("timeoverlay", "over");
  sink = gst_element_factory_make ("xvimagesink", "video_sink");
   
  /* Create the sink bin, add the elements and link them */
  bin = gst_bin_new ("bin");
  gst_bin_add_many (GST_BIN (bin), time, sink, NULL);
  gst_element_link (time, sink);
  pad = gst_element_get_static_pad (time, "video_sink");
  ghost_pad = gst_ghost_pad_new ("sink", pad);
  gst_element_add_pad (bin, ghost_pad);
  gst_object_unref (pad);
  /* Set playbin2's audio sink to be our sink bin */
  g_object_set (GST_OBJECT (pipeline), "video-sink", bin, NULL);
   
  /* Start playing */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
   
  /* Wait until error or EOS */
  bus = gst_element_get_bus (pipeline);
  msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE,
GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
   
  /* Free resources */
  if (msg != NULL)
    gst_message_unref (msg);
  gst_object_unref (bus);
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (pipeline);
  return 0;
}


When I use this code with gstreamer 1.0 I see only black background. It
plays video only without setting subtitles or with default videosink. 

I figured it may have something to do with gststreamsynchronizer, because I
got that from debug info:

0x1304f20 WARN      streamsynchronizer
gststreamsynchronizer.c:389:gst_stream_synchronizer_sink_event:<streamsynchronizer0:sink_2>
Non-TIME segment: bytes





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