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rtpjitterbuffer: increment accepted packets after loss

Browse source 
When we detect a lost packet, expect packets with higher
seqnum on the input.

Also update the unit test.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=729524
This commit is contained in:
Wim Taymans 2014-05-09 18:01:28 +02:00
parent 9068e1bb8e
commit b2e1598e4a
2 changed files with 63 additions and 3 deletions
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8
gst/rtpmanager/gstrtpjitterbuffer.c
View file

@ -2758,7 +2758,7 @@ do_lost_timeout (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
{
GstRtpJitterBufferPrivate *priv = jitterbuffer->priv;
GstClockTime duration, timestamp;
guint seqnum, lost_packets, num_rtx_retry;
guint seqnum, lost_packets, num_rtx_retry, next_in_seqnum;
gboolean late, head;
GstEvent *event;
RTPJitterBufferItem *item;
@ -2782,6 +2782,12 @@ do_lost_timeout (GstRtpJitterBuffer * jitterbuffer, TimerData * timer,
priv->num_late += lost_packets;
priv->num_rtx_failed += num_rtx_retry;
next_in_seqnum = (seqnum + lost_packets) & 0xffff;
/* we now only accept seqnum bigger than this */
if (gst_rtp_buffer_compare_seqnum (priv->next_in_seqnum, next_in_seqnum) > 0)
priv->next_in_seqnum = next_in_seqnum;
/* create paket lost event */
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new ("GstRTPPacketLost",

56
tests/check/elements/rtpjitterbuffer.c
View file

@ -1409,6 +1409,7 @@ GST_START_TEST (test_gap_exceeds_latency)
guint32 last_rtp = 0;
const GstStructure *s = NULL;
guint32 seqnum = 0;
gint i;
setup_testharness (&data);
g_object_set (data.jitter_buffer, "do-retransmission", TRUE, NULL);
@ -1506,8 +1507,61 @@ GST_START_TEST (test_gap_exceeds_latency)
in_buf = generate_test_buffer (last_ts * GST_MSECOND, TRUE, 15, last_rtp);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
/* Wait for data to be pushed, it won't be at this time due to an off by one error. */
/* Wait for data to be pushed. */
while (g_async_queue_length (data.buf_queue) < 1) {
if (gst_test_clock_peek_next_pending_id (GST_TEST_CLOCK (data.clock), &id)) {
GstClockTime t = gst_clock_id_get_time (id);
if (t > gst_clock_get_time (data.clock)) {
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), t);
}
tid = gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock));
gst_clock_id_unref (id);
gst_clock_id_unref (tid);
}
}
out_event = g_async_queue_pop (data.sink_event_queue);
s = gst_event_get_structure (out_event);
g_assert (gst_structure_get_uint (s, "seqnum", &seqnum));
g_assert_cmpint (seqnum, ==, 3);
gst_event_unref (out_event);
out_event = g_async_queue_pop (data.sink_event_queue);
s = gst_event_get_structure (out_event);
g_assert (gst_structure_get_uint (s, "seqnum", &seqnum));
g_assert_cmpint (seqnum, ==, 7);
gst_event_unref (out_event);
/* 8 */
for (i = 8; i <= 16; i++) {
out_buf = g_async_queue_pop (data.buf_queue);
GST_DEBUG ("pop %d", i);
gst_buffer_unref (out_buf);
}
do {
out_event = g_async_queue_try_pop (data.sink_event_queue);
if (!out_event) {
if (gst_test_clock_peek_next_pending_id (GST_TEST_CLOCK (data.clock),
&id)) {
GstClockTime t = gst_clock_id_get_time (id);
if (t > gst_clock_get_time (data.clock)) {
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), t);
}
tid =
gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock));
gst_clock_id_unref (id);
gst_clock_id_unref (tid);
}
}
} while (!out_event);
/* and lost of 17 */
s = gst_event_get_structure (out_event);
g_assert (gst_structure_get_uint (s, "seqnum", &seqnum));
g_assert_cmpint (seqnum, ==, 17);
gst_event_unref (out_event);
destroy_testharness (&data);
}