From ed09c8fd2c9c2b5384b72cc70af3728be6694e64 Mon Sep 17 00:00:00 2001
From: Mingke Wang <mingke.wang@freescale.com>
Date: Thu, 19 Mar 2015 14:20:26 +0800
Subject: [PATCH 4/4] subparse: set need_segment after sink pad received
 GST_EVENT_SEGMENT

subparse works in push mode, chain funciton will be called once
up stream element finished the seeking and flushing.
if set need_segment flag in src pad event handler, the segment
event will be pushed earlier, result in the subtitle text will
be send out to down stream from the beginning.

Upstream-Status: Submitted [https://bugzilla.gnome.org/show_bug.cgi?id=747498]

Signed-off-by: Mingke Wang <mingke.wang@freescale.com>

diff --git a/gst/subparse/gstsubparse.c b/gst/subparse/gstsubparse.c
old mode 100644
new mode 100755
index b565e93..7741ccc
--- a/gst/subparse/gstsubparse.c
+++ b/gst/subparse/gstsubparse.c
@@ -266,22 +266,20 @@ gst_sub_parse_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
         goto beach;
       }
 
+      /* Apply the seek to our segment */
+      gst_segment_do_seek (&self->segment, rate, format, flags,
+          start_type, start, stop_type, stop, &update);
+
+      GST_DEBUG_OBJECT (self, "segment after seek: %" GST_SEGMENT_FORMAT,
+          &self->segment);
+
       /* Convert that seek to a seeking in bytes at position 0,
          FIXME: could use an index */
       ret = gst_pad_push_event (self->sinkpad,
           gst_event_new_seek (rate, GST_FORMAT_BYTES, flags,
               GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, 0));
 
-      if (ret) {
-        /* Apply the seek to our segment */
-        gst_segment_do_seek (&self->segment, rate, format, flags,
-            start_type, start, stop_type, stop, &update);
-
-        GST_DEBUG_OBJECT (self, "segment after seek: %" GST_SEGMENT_FORMAT,
-            &self->segment);
-
-        self->need_segment = TRUE;
-      } else {
+      if (!ret) {
         GST_WARNING_OBJECT (self, "seek to 0 bytes failed");
       }
 
@@ -1632,8 +1630,10 @@ gst_sub_parse_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
       gst_event_parse_segment (event, &s);
       if (s->format == GST_FORMAT_TIME)
         gst_event_copy_segment (event, &self->segment);
-      GST_DEBUG_OBJECT (self, "newsegment (%s)",
-          gst_format_get_name (self->segment.format));
+      GST_DEBUG_OBJECT (self, "newsegment (%s) %" GST_SEGMENT_FORMAT,
+          gst_format_get_name (self->segment.format), &self->segment);
+
+      self->need_segment = TRUE;
 
       /* if not time format, we'll either start with a 0 timestamp anyway or
        * it's following a seek in which case we'll have saved the requested
-- 
1.7.9.5