textoverlay: Clip text buffers to the text segment and reset segments properly

diff --git a/ext/pango/gsttextoverlay.c b/ext/pango/gsttextoverlay.c
index a7ac571..ea9f106 100644 (file)
--- a/ext/pango/gsttextoverlay.c
+++ b/ext/pango/gsttextoverlay.c
@@ -1737,6 +1737,7 @@ gst_text_overlay_text_event (GstPad * pad, GstEvent * event)
       overlay->text_flushing = FALSE;
       overlay->text_eos = FALSE;
       gst_text_overlay_pop_text (overlay);
+      gst_segment_init (&overlay->text_segment, GST_FORMAT_TIME);
       GST_OBJECT_UNLOCK (overlay);
       gst_event_unref (event);
       ret = TRUE;
@@ -1828,6 +1829,7 @@ gst_text_overlay_video_event (GstPad * pad, GstEvent * event)
       GST_INFO_OBJECT (overlay, "video flush stop");
       overlay->video_flushing = FALSE;
       overlay->video_eos = FALSE;
+      gst_segment_init (&overlay->segment, GST_FORMAT_TIME);
       GST_OBJECT_UNLOCK (overlay);
       ret = gst_pad_event_default (pad, event);
       break;
@@ -1911,7 +1913,7 @@ gst_text_overlay_text_chain (GstPad * pad, GstBuffer * buffer)
     else
       stop = GST_CLOCK_TIME_NONE;
 
-    in_seg = gst_segment_clip (&overlay->segment, GST_FORMAT_TIME,
+    in_seg = gst_segment_clip (&overlay->text_segment, GST_FORMAT_TIME,
         GST_BUFFER_TIMESTAMP (buffer), stop, &clip_start, &clip_stop);
   } else {
     in_seg = TRUE;
@@ -1936,6 +1938,10 @@ gst_text_overlay_text_chain (GstPad * pad, GstBuffer * buffer)
       }
     }
 
+    if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
+      gst_segment_set_last_stop (&overlay->text_segment, GST_FORMAT_TIME,
+          clip_start);
+
     overlay->text_buffer = buffer;
     /* That's a new text buffer we need to render */
     overlay->need_render = TRUE;
@@ -2250,6 +2256,8 @@ gst_text_overlay_change_state (GstElement * element, GstStateChange transition)
       overlay->video_flushing = FALSE;
       overlay->video_eos = FALSE;
       overlay->text_eos = FALSE;
+      gst_segment_init (&overlay->segment, GST_FORMAT_TIME);
+      gst_segment_init (&overlay->text_segment, GST_FORMAT_TIME);
       GST_OBJECT_UNLOCK (overlay);
       break;
     default: