From 3eeca9c7d20bac6f4da1e1100982836539a2daf7 Mon Sep 17 00:00:00 2001
From: Stian Selnes <stian@pexip.com>
Date: Tue, 8 Dec 2015 18:49:40 +0100
Subject: rtpjitterbuffer: Add test for big seqnum gap handling

Make sure that the packets queued when detecting a big gap are pushed
after reset (5 consective seqnums) and not dropped.

https://bugzilla.gnome.org/show_bug.cgi?id=762211
---
 tests/check/elements/rtpjitterbuffer.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tests/check/elements/rtpjitterbuffer.c b/tests/check/elements/rtpjitterbuffer.c
index efbe161aa..86ebd363a 100644
--- a/tests/check/elements/rtpjitterbuffer.c
+++ b/tests/check/elements/rtpjitterbuffer.c
@@ -1672,6 +1672,38 @@ GST_START_TEST (test_dts_gap_larger_than_latency)
 
 GST_END_TEST;
 
+GST_START_TEST (test_push_big_gap)
+{
+  GstHarness *h = gst_harness_new ("rtpjitterbuffer");
+  const gint num_consecutive = 5;
+  gint i;
+
+  gst_harness_use_testclock (h);
+  gst_harness_set_src_caps (h, generate_caps ());
+
+  for (i = 0; i < num_consecutive; i++)
+    gst_harness_push (h, generate_test_buffer (1000 + i));
+  gst_harness_crank_single_clock_wait (h);
+  for (i = 0; i < num_consecutive; i++)
+    gst_buffer_unref (gst_harness_pull (h));
+
+  /* Push more packets from a different sequence number domain
+   * to trigger "big gap" logic. */
+  for (i = 0; i < num_consecutive; i++)
+    gst_harness_push (h, generate_test_buffer (20000 + i));
+  gst_harness_crank_single_clock_wait (h);
+  for (i = 0; i < num_consecutive; i++)
+    gst_buffer_unref (gst_harness_pull (h));
+
+  /* Final buffer should be pushed straight through */
+  gst_harness_push (h, generate_test_buffer (20000 + num_consecutive));
+  gst_buffer_unref (gst_harness_pull (h));
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
 static Suite *
 rtpjitterbuffer_suite (void)
 {
@@ -1694,6 +1726,7 @@ rtpjitterbuffer_suite (void)
   tcase_add_test (tc_chain, test_gap_exceeds_latency);
   tcase_add_test (tc_chain, test_deadline_ts_offset);
   tcase_add_test (tc_chain, test_dts_gap_larger_than_latency);
+  tcase_add_test (tc_chain, test_push_big_gap);
 
   return s;
 }
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