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rtpjitterbuffer: improve clear-pt-map handling

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Don't reset the expected output seqnum when clearing the pt map because this
could stall the jitterbuffer forever.
Add a unit test for this.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=709800
This commit is contained in:
Wim Taymans 2013-11-25 15:49:07 +01:00
parent be2f2f196a
commit 710d1f3a2a
2 changed files with 47 additions and 2 deletions
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2
gst/rtpmanager/gstrtpjitterbuffer.c
View file

@ -935,8 +935,6 @@ gst_rtp_jitter_buffer_clear_pt_map (GstRtpJitterBuffer * jitterbuffer)
/* do not clear current content, but refresh state for new arrival */
GST_DEBUG_OBJECT (jitterbuffer, "reset jitterbuffer");
rtp_jitter_buffer_reset_skew (priv->jbuf);
priv->last_popped_seqnum = -1;
priv->next_seqnum = -1;
JBUF_UNLOCK (priv);
}

47
tests/check/elements/rtpjitterbuffer.c
View file

@ -328,6 +328,52 @@ GST_START_TEST (test_basetime)
GST_END_TEST;
static GstCaps *
request_pt_map (GstElement * jitterbuffer, guint pt)
{
fail_unless (pt == 0);
return gst_caps_from_string (RTP_CAPS_STRING);
}
GST_START_TEST (test_clear_pt_map)
{
GstElement *jitterbuffer;
const guint num_buffers = 10;
gint i;
GstBuffer *buffer;
GList *node;
jitterbuffer = setup_jitterbuffer (num_buffers);
fail_unless (start_jitterbuffer (jitterbuffer)
== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
g_signal_connect (jitterbuffer, "request-pt-map", (GCallback)
request_pt_map, NULL);
/* push buffers: 0,1,2, */
for (node = inbuffers, i = 0; node && i < 3; node = g_list_next (node), i++) {
buffer = (GstBuffer *) node->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
}
g_usleep (400 * 1000);
g_signal_emit_by_name (jitterbuffer, "clear-pt-map", NULL);
for (; node && i < 10; node = g_list_next (node), i++) {
buffer = (GstBuffer *) node->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
}
/* check the buffer list */
check_jitterbuffer_results (jitterbuffer, num_buffers);
/* cleanup */
cleanup_jitterbuffer (jitterbuffer);
}
GST_END_TEST;
static const guint payload_size = 160;
static const guint clock_rate = 8000;
static const guint pcmu_payload_type = 0;
@ -1285,6 +1331,7 @@ rtpjitterbuffer_suite (void)
tcase_add_test (tc_chain, test_push_backward_seq);
tcase_add_test (tc_chain, test_push_unordered);
tcase_add_test (tc_chain, test_basetime);
tcase_add_test (tc_chain, test_clear_pt_map);
tcase_add_test (tc_chain, test_only_one_lost_event_on_large_gaps);
tcase_add_test (tc_chain, test_two_lost_one_arrives_in_time);
tcase_add_test (tc_chain, test_late_packets_still_makes_lost_events);