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gstreamer/subprojects/gst-plugins-good/tests/check/elements/rtpsession.c
Edward Hervey 7e619f7e83 twcc: Better handle duplicate packets 
The previous code would only check if two packets in a row were duplicates. If
not (i.e. a packet is a duplicate of a packet received slightly before) the code
would generate completely bogus FCI because it assumes there were no duplicates
present in the array.

In order to be efficient, just store all received packets and remove the
duplicates just before the FCI is generated once the array of observations have
been sorted by seqnum.

Fixes TWCC usage with moderate to high packet duplication.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4328>
2023-04-10 09:37:51 +00:00

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/* GStreamer
*
* unit test for gstrtpsession
*
* Copyright (C) <2009> Wim Taymans <wim.taymans@gmail.com>
* Copyright (C) 2013 Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include <gst/check/gstharness.h>
#include <gst/check/gstcheck.h>
#include <gst/check/gsttestclock.h>
#include <gst/check/gstharness.h>
#include <gst/rtp/gstrtpbuffer.h>
#include <gst/rtp/gstrtcpbuffer.h>
#include <gst/net/gstnetaddressmeta.h>
#include <gst/video/video.h>
#define TEST_BUF_CLOCK_RATE 8000
#define TEST_BUF_PT 0
#define TEST_BUF_SSRC 0x01BADBAD
#define TEST_BUF_MS 20
#define TEST_BUF_DURATION (TEST_BUF_MS * GST_MSECOND)
#define TEST_BUF_BPS 512000
#define TEST_BUF_SIZE (TEST_BUF_BPS * TEST_BUF_MS / (1000 * 8))
#define TEST_RTP_TS_DURATION (TEST_BUF_CLOCK_RATE * TEST_BUF_MS / 1000)
#define TEST_TWCC_EXT_ID 5
#define TWCC_EXTMAP_STR "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"
static GstCaps *
generate_caps (void)
{
return gst_caps_new_simple ("application/x-rtp",
"clock-rate", G_TYPE_INT, TEST_BUF_CLOCK_RATE,
"payload", G_TYPE_INT, TEST_BUF_PT, NULL);
}
static GstBuffer *
generate_test_buffer_full (GstClockTime ts,
guint seqnum, guint32 rtp_ts, guint ssrc,
gboolean marker_bit, guint8 payload_type, guint8 twcc_ext_id,
guint16 twcc_seqnum)
{
GstBuffer *buf;
guint8 *payload;
guint i;
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
buf = gst_rtp_buffer_new_allocate (TEST_BUF_SIZE, 0, 0);
GST_BUFFER_PTS (buf) = ts;
GST_BUFFER_DTS (buf) = ts;
gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
gst_rtp_buffer_set_payload_type (&rtp, payload_type);
gst_rtp_buffer_set_seq (&rtp, seqnum);
gst_rtp_buffer_set_timestamp (&rtp, rtp_ts);
gst_rtp_buffer_set_ssrc (&rtp, ssrc);
gst_rtp_buffer_set_marker (&rtp, marker_bit);
payload = gst_rtp_buffer_get_payload (&rtp);
for (i = 0; i < TEST_BUF_SIZE; i++)
payload[i] = 0xff;
if (twcc_ext_id > 0) {
guint8 twcc_seqnum_be[2];
GST_WRITE_UINT16_BE (twcc_seqnum_be, twcc_seqnum);
gst_rtp_buffer_add_extension_onebyte_header (&rtp, twcc_ext_id,
twcc_seqnum_be, sizeof (twcc_seqnum_be));
}
gst_rtp_buffer_unmap (&rtp);
return buf;
}
static GstBuffer *
generate_test_buffer (guint seqnum, guint ssrc)
{
return generate_test_buffer_full (seqnum * TEST_BUF_DURATION,
seqnum, seqnum * TEST_RTP_TS_DURATION, ssrc, FALSE, TEST_BUF_PT, 0, 0);
}
static GstBuffer *
generate_twcc_recv_buffer (guint seqnum,
GstClockTime arrival_time, gboolean marker_bit)
{
return generate_test_buffer_full (arrival_time, seqnum,
seqnum * TEST_RTP_TS_DURATION, TEST_BUF_SSRC, marker_bit, TEST_BUF_PT,
TEST_TWCC_EXT_ID, seqnum);
}
static GstBuffer *
generate_twcc_send_buffer_full (guint seqnum, gboolean marker_bit,
guint ssrc, guint8 payload_type)
{
return generate_test_buffer_full (seqnum * TEST_BUF_DURATION,
seqnum, seqnum * TEST_RTP_TS_DURATION, ssrc, marker_bit,
payload_type, TEST_TWCC_EXT_ID, seqnum);
}
static GstBuffer *
generate_twcc_send_buffer (guint seqnum, gboolean marker_bit)
{
return generate_twcc_send_buffer_full (seqnum, marker_bit, TEST_BUF_SSRC,
TEST_BUF_PT);
}
typedef struct
{
GstHarness *send_rtp_h;
GstHarness *recv_rtp_h;
GstHarness *rtcp_h;
GstElement *session;
GObject *internal_session;
GstTestClock *testclock;
GstCaps *caps;
gboolean running;
GMutex lock;
GstStructure *last_twcc_stats;
} SessionHarness;
static GstCaps *
_pt_map_requested (GstElement * element, guint pt, gpointer data)
{
SessionHarness *h = data;
return gst_caps_copy (h->caps);
}
static void
_notify_twcc_stats (GParamSpec * spec G_GNUC_UNUSED,
GObject * object G_GNUC_UNUSED, gpointer data)
{
SessionHarness *h = data;
GstStructure *stats;
g_object_get (h->session, "twcc-stats", &stats, NULL);
g_mutex_lock (&h->lock);
if (h->last_twcc_stats)
gst_structure_free (h->last_twcc_stats);
h->last_twcc_stats = stats;
g_mutex_unlock (&h->lock);
}
static GstStructure *
session_harness_get_last_twcc_stats (SessionHarness * h)
{
GstStructure *ret = NULL;
g_mutex_lock (&h->lock);
if (h->last_twcc_stats)
ret = gst_structure_copy (h->last_twcc_stats);
g_mutex_unlock (&h->lock);
return ret;
}
static SessionHarness *
session_harness_new (void)
{
SessionHarness *h = g_new0 (SessionHarness, 1);
h->caps = generate_caps ();
g_mutex_init (&h->lock);
h->testclock = GST_TEST_CLOCK_CAST (gst_test_clock_new ());
gst_system_clock_set_default (GST_CLOCK_CAST (h->testclock));
h->session = gst_element_factory_make ("rtpsession", NULL);
gst_element_set_clock (h->session, GST_CLOCK_CAST (h->testclock));
h->send_rtp_h = gst_harness_new_with_element (h->session,
"send_rtp_sink", "send_rtp_src");
gst_harness_set_src_caps (h->send_rtp_h, gst_caps_copy (h->caps));
h->recv_rtp_h = gst_harness_new_with_element (h->session,
"recv_rtp_sink", "recv_rtp_src");
gst_harness_set_src_caps (h->recv_rtp_h, gst_caps_copy (h->caps));
h->rtcp_h = gst_harness_new_with_element (h->session,
"recv_rtcp_sink", "send_rtcp_src");
gst_harness_set_src_caps_str (h->rtcp_h, "application/x-rtcp");
g_signal_connect (h->session, "request-pt-map",
(GCallback) _pt_map_requested, h);
g_signal_connect (h->session, "notify::twcc-stats",
(GCallback) _notify_twcc_stats, h);
g_object_get (h->session, "internal-session", &h->internal_session, NULL);
return h;
}
static void
session_harness_free (SessionHarness * h)
{
gst_system_clock_set_default (NULL);
gst_caps_unref (h->caps);
gst_object_unref (h->testclock);
gst_harness_teardown (h->rtcp_h);
gst_harness_teardown (h->recv_rtp_h);
gst_harness_teardown (h->send_rtp_h);
g_mutex_clear (&h->lock);
if (h->last_twcc_stats)
gst_structure_free (h->last_twcc_stats);
g_object_unref (h->internal_session);
gst_object_unref (h->session);
g_free (h);
}
static GstFlowReturn
session_harness_send_rtp (SessionHarness * h, GstBuffer * buf)
{
return gst_harness_push (h->send_rtp_h, buf);
}
static GstBuffer *
session_harness_pull_send_rtp (SessionHarness * h)
{
return gst_harness_pull (h->send_rtp_h);
}
static GstFlowReturn
session_harness_recv_rtp (SessionHarness * h, GstBuffer * buf)
{
return gst_harness_push (h->recv_rtp_h, buf);
}
static GstFlowReturn
session_harness_recv_rtcp (SessionHarness * h, GstBuffer * buf)
{
return gst_harness_push (h->rtcp_h, buf);
}
static GstBuffer *
session_harness_pull_rtcp (SessionHarness * h)
{
return gst_harness_pull (h->rtcp_h);
}
static void
session_harness_crank_clock (SessionHarness * h)
{
gst_test_clock_crank (h->testclock);
}
static gboolean
session_harness_advance_and_crank (SessionHarness * h, GstClockTime delta)
{
GstClockID res, pending;
gboolean result;
gst_test_clock_wait_for_next_pending_id (h->testclock, &pending);
gst_test_clock_advance_time (h->testclock, delta);
res = gst_test_clock_process_next_clock_id (h->testclock);
if (res == pending)
result = TRUE;
else
result = FALSE;
if (res)
gst_clock_id_unref (res);
gst_clock_id_unref (pending);
return result;
}
static void
session_harness_produce_rtcp (SessionHarness * h, gint num_rtcp_packets)
{
/* due to randomness in rescheduling of RTCP timeout, we need to
keep cranking until we have the desired amount of packets */
while (gst_harness_buffers_in_queue (h->rtcp_h) < num_rtcp_packets) {
session_harness_crank_clock (h);
/* allow the rtcp-thread to settle before checking the queue */
gst_test_clock_wait_for_next_pending_id (h->testclock, NULL);
}
}
static void
session_harness_force_key_unit (SessionHarness * h,
guint count, guint ssrc, guint payload, gint * reqid, guint64 * sfr)
{
GstClockTime running_time = GST_CLOCK_TIME_NONE;
gboolean all_headers = TRUE;
GstStructure *s = gst_structure_new ("GstForceKeyUnit",
"running-time", GST_TYPE_CLOCK_TIME, running_time,
"all-headers", G_TYPE_BOOLEAN, all_headers,
"count", G_TYPE_UINT, count,
"ssrc", G_TYPE_UINT, ssrc,
"payload", G_TYPE_UINT, payload,
NULL);
if (reqid)
gst_structure_set (s, "reqid", G_TYPE_INT, *reqid, NULL);
if (sfr)
gst_structure_set (s, "sfr", G_TYPE_UINT64, *sfr, NULL);
gst_harness_push_upstream_event (h->recv_rtp_h,
gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM, s));
}
static void
session_harness_rtp_retransmission_request (SessionHarness * h,
guint ssrc, guint seqnum, guint delay, guint deadline, guint avg_rtt)
{
GstClockTime running_time = GST_CLOCK_TIME_NONE;
GstStructure *s = gst_structure_new ("GstRTPRetransmissionRequest",
"running-time", GST_TYPE_CLOCK_TIME, running_time,
"ssrc", G_TYPE_UINT, ssrc,
"seqnum", G_TYPE_UINT, seqnum,
"delay", G_TYPE_UINT, delay,
"deadline", G_TYPE_UINT, deadline,
"avg-rtt", G_TYPE_UINT, avg_rtt,
NULL);
gst_harness_push_upstream_event (h->recv_rtp_h,
gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM, s));
}
static void
_add_twcc_field_to_caps (GstCaps * caps, guint8 ext_id)
{
gchar *name = g_strdup_printf ("extmap-%u", ext_id);
gst_caps_set_simple (caps, name, G_TYPE_STRING, TWCC_EXTMAP_STR, NULL);
g_free (name);
}
static void
session_harness_set_twcc_recv_ext_id (SessionHarness * h, guint8 ext_id)
{
_add_twcc_field_to_caps (h->caps, ext_id);
g_signal_emit_by_name (h->session, "clear-pt-map");
}
static void
session_harness_set_twcc_send_ext_id (SessionHarness * h, guint8 ext_id)
{
GstCaps *caps = gst_caps_copy (h->caps);
_add_twcc_field_to_caps (caps, ext_id);
gst_harness_set_src_caps (h->send_rtp_h, caps);
}
GST_START_TEST (test_multiple_ssrc_rr)
{
SessionHarness *h = session_harness_new ();
GstFlowReturn res;
GstBuffer *in_buf, *out_buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
gint i, j;
guint ssrc_match;
guint ssrcs[] = {
0x01BADBAD,
0xDEADBEEF,
};
/* receive buffers with multiple ssrcs */
for (i = 0; i < 2; i++) {
for (j = 0; j < G_N_ELEMENTS (ssrcs); j++) {
in_buf = generate_test_buffer (i, ssrcs[j]);
res = session_harness_recv_rtp (h, in_buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
}
/* crank the rtcp-thread and pull out the rtcp-packet we have generated */
session_harness_crank_clock (h);
out_buf = session_harness_pull_rtcp (h);
/* verify we have report blocks for both ssrcs */
g_assert (out_buf != NULL);
fail_unless (gst_rtcp_buffer_validate (out_buf));
gst_rtcp_buffer_map (out_buf, GST_MAP_READ, &rtcp);
g_assert (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (G_N_ELEMENTS (ssrcs),
gst_rtcp_packet_get_rb_count (&rtcp_packet));
ssrc_match = 0;
for (i = 0; i < G_N_ELEMENTS (ssrcs); i++) {
guint32 ssrc;
gst_rtcp_packet_get_rb (&rtcp_packet, i, &ssrc,
NULL, NULL, NULL, NULL, NULL, NULL);
for (j = 0; j < G_N_ELEMENTS (ssrcs); j++) {
if (ssrcs[j] == ssrc)
ssrc_match++;
}
}
fail_unless_equals_int (G_N_ELEMENTS (ssrcs), ssrc_match);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (out_buf);
session_harness_free (h);
}
GST_END_TEST;
/* This verifies that rtpsession will correctly place RBs round-robin
* across multiple RRs when there are too many senders that their RBs
* do not fit in one RR */
GST_START_TEST (test_multiple_senders_roundrobin_rbs)
{
SessionHarness *h = session_harness_new ();
GstFlowReturn res;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
gint i, j, k;
guint32 ssrc;
GHashTable *rb_ssrcs, *tmp_set;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* this is a hack to prevent the sources from timing out when cranking and
hence messing with RTCP-generation, making the test fail 1/1000 times */
g_object_set (h->session, "rtcp-min-interval", 20 * GST_SECOND, NULL);
for (i = 0; i < 2; i++) { /* cycles between RR reports */
for (j = 0; j < 5; j++) { /* packets per ssrc */
gint seq = (i * 5) + j;
for (k = 0; k < 35; k++) { /* number of ssrcs */
buf = generate_test_buffer (seq, 10000 + k);
res = session_harness_recv_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
}
}
rb_ssrcs = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL,
(GDestroyNotify) g_hash_table_unref);
/* verify the rtcp packets */
for (i = 0; i < 2; i++) {
guint expected_rb_count = (i < 1) ? GST_RTCP_MAX_RB_COUNT :
(35 - GST_RTCP_MAX_RB_COUNT);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
g_assert (buf != NULL);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
ssrc = gst_rtcp_packet_rr_get_ssrc (&rtcp_packet);
fail_unless_equals_int (0xDEADBEEF, ssrc);
/* inspect the RBs */
fail_unless_equals_int (expected_rb_count,
gst_rtcp_packet_get_rb_count (&rtcp_packet));
if (i == 0) {
tmp_set = g_hash_table_new (g_direct_hash, g_direct_equal);
g_hash_table_insert (rb_ssrcs, GUINT_TO_POINTER (ssrc), tmp_set);
} else {
tmp_set = g_hash_table_lookup (rb_ssrcs, GUINT_TO_POINTER (ssrc));
g_assert (tmp_set);
}
for (j = 0; j < expected_rb_count; j++) {
gst_rtcp_packet_get_rb (&rtcp_packet, j, &ssrc, NULL, NULL,
NULL, NULL, NULL, NULL);
g_assert_cmpint (ssrc, >=, 10000);
g_assert_cmpint (ssrc, <=, 10035);
g_hash_table_add (tmp_set, GUINT_TO_POINTER (ssrc));
}
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
}
/* now verify all received ssrcs have been reported */
fail_unless_equals_int (1, g_hash_table_size (rb_ssrcs));
tmp_set = g_hash_table_lookup (rb_ssrcs, GUINT_TO_POINTER (0xDEADBEEF));
g_assert (tmp_set);
fail_unless_equals_int (35, g_hash_table_size (tmp_set));
g_hash_table_unref (rb_ssrcs);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_no_rbs_for_internal_senders)
{
SessionHarness *h = session_harness_new ();
GstFlowReturn res;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
gint i, j, k;
guint32 ssrc;
GHashTable *sr_ssrcs;
GHashTable *rb_ssrcs, *tmp_set;
/* Push RTP from our send SSRCs */
for (j = 0; j < 5; j++) { /* packets per ssrc */
for (k = 0; k < 2; k++) { /* number of ssrcs */
buf = generate_test_buffer (j, 10000 + k);
res = session_harness_send_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
}
/* crank the RTCP pad thread */
session_harness_crank_clock (h);
sr_ssrcs = g_hash_table_new (g_direct_hash, g_direct_equal);
/* verify the rtcp packets */
for (i = 0; i < 2; i++) {
buf = session_harness_pull_rtcp (h);
g_assert (buf != NULL);
g_assert (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
g_assert (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_SR,
gst_rtcp_packet_get_type (&rtcp_packet));
gst_rtcp_packet_sr_get_sender_info (&rtcp_packet, &ssrc, NULL, NULL,
NULL, NULL);
g_assert_cmpint (ssrc, >=, 10000);
g_assert_cmpint (ssrc, <=, 10001);
g_hash_table_add (sr_ssrcs, GUINT_TO_POINTER (ssrc));
/* There should be no RBs as there are no remote senders */
fail_unless_equals_int (0, gst_rtcp_packet_get_rb_count (&rtcp_packet));
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
}
/* Ensure both internal senders generated RTCP */
fail_unless_equals_int (2, g_hash_table_size (sr_ssrcs));
g_hash_table_unref (sr_ssrcs);
/* Generate RTP from remote side */
for (j = 0; j < 5; j++) { /* packets per ssrc */
for (k = 0; k < 2; k++) { /* number of ssrcs */
buf = generate_test_buffer (j, 20000 + k);
res = session_harness_recv_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
}
sr_ssrcs = g_hash_table_new (g_direct_hash, g_direct_equal);
rb_ssrcs = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL,
(GDestroyNotify) g_hash_table_unref);
/* verify the rtcp packets */
for (i = 0; i < 2; i++) {
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
g_assert (buf != NULL);
g_assert (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
g_assert (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_SR,
gst_rtcp_packet_get_type (&rtcp_packet));
gst_rtcp_packet_sr_get_sender_info (&rtcp_packet, &ssrc, NULL, NULL,
NULL, NULL);
g_assert_cmpint (ssrc, >=, 10000);
g_assert_cmpint (ssrc, <=, 10001);
g_hash_table_add (sr_ssrcs, GUINT_TO_POINTER (ssrc));
/* There should be 2 RBs: one for each remote sender */
fail_unless_equals_int (2, gst_rtcp_packet_get_rb_count (&rtcp_packet));
tmp_set = g_hash_table_new (g_direct_hash, g_direct_equal);
g_hash_table_insert (rb_ssrcs, GUINT_TO_POINTER (ssrc), tmp_set);
for (j = 0; j < 2; j++) {
gst_rtcp_packet_get_rb (&rtcp_packet, j, &ssrc, NULL, NULL,
NULL, NULL, NULL, NULL);
g_assert_cmpint (ssrc, >=, 20000);
g_assert_cmpint (ssrc, <=, 20001);
g_hash_table_add (tmp_set, GUINT_TO_POINTER (ssrc));
}
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
}
/* now verify all received ssrcs have been reported */
fail_unless_equals_int (2, g_hash_table_size (sr_ssrcs));
fail_unless_equals_int (2, g_hash_table_size (rb_ssrcs));
for (i = 10000; i < 10002; i++) {
tmp_set = g_hash_table_lookup (rb_ssrcs, GUINT_TO_POINTER (i));
g_assert (tmp_set);
fail_unless_equals_int (2, g_hash_table_size (tmp_set));
}
g_hash_table_unref (rb_ssrcs);
g_hash_table_unref (sr_ssrcs);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_internal_sources_timeout)
{
SessionHarness *h = session_harness_new ();
guint internal_ssrc;
guint32 ssrc;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
GstRTCPType rtcp_type;
GstFlowReturn res;
gint i, j;
GstCaps *caps;
gboolean seen_bye;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
g_object_get (h->internal_session, "internal-ssrc", &internal_ssrc, NULL);
fail_unless_equals_int (0xDEADBEEF, internal_ssrc);
/* this is a hack to prevent the sources from timing out when cranking and
hence messing with RTCP-generation, making the test fail 1/100 times */
g_object_set (h->session, "rtcp-min-interval", 20 * GST_SECOND, NULL);
for (i = 1; i < 4; i++) {
buf = generate_test_buffer (i, 0xBEEFDEAD);
res = session_harness_recv_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
/* verify that rtpsession has sent RR for an internally-created
* RTPSource that is using the internal-ssrc */
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
fail_unless (buf != NULL);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
ssrc = gst_rtcp_packet_rr_get_ssrc (&rtcp_packet);
fail_unless_equals_int (ssrc, internal_ssrc);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
/* ok, now let's push some RTP packets */
caps = generate_caps ();
gst_caps_set_simple (caps,
"ssrc", G_TYPE_UINT, 0x01BADBAD,
"rtx-ssrc", G_TYPE_UINT, 0x01020304, NULL);
gst_harness_set_src_caps (h->send_rtp_h, caps);
for (i = 1; i < 4; i++) {
buf = generate_test_buffer (i, 0x01BADBAD);
res = session_harness_send_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
/* "rtx" packet */
buf = generate_test_buffer (5, 0x01020304);
res = session_harness_send_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
/* internal ssrc must have changed already */
g_object_get (h->internal_session, "internal-ssrc", &internal_ssrc, NULL);
fail_unless (internal_ssrc != ssrc);
fail_unless_equals_int (0x01BADBAD, internal_ssrc);
/* verify SR and RR */
j = 0;
for (i = 0; i < 5; i++) {
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
g_assert (buf != NULL);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
rtcp_type = gst_rtcp_packet_get_type (&rtcp_packet);
if (rtcp_type == GST_RTCP_TYPE_SR) {
gst_rtcp_packet_sr_get_sender_info (&rtcp_packet, &ssrc, NULL, NULL, NULL,
NULL);
if (ssrc == 0x01BADBAD) {
g_assert_cmpint (ssrc, ==, internal_ssrc);
j |= 0x1;
} else {
g_assert_cmpint (ssrc, !=, internal_ssrc);
g_assert_cmpint (ssrc, ==, 0x01020304);
j |= 0x4;
}
} else if (rtcp_type == GST_RTCP_TYPE_RR) {
ssrc = gst_rtcp_packet_rr_get_ssrc (&rtcp_packet);
if (internal_ssrc != ssrc)
j |= 0x2;
}
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
}
fail_unless_equals_int (0x7, j); /* verify we got both SR and RR */
/* go 30 seconds in the future and observe both sources timing out:
* 0xDEADBEEF -> BYE,
* 0x01BADBAD -> becomes receiver only,
* 0x01020304 -> becomes receiver only */
fail_unless (session_harness_advance_and_crank (h, 30 * GST_SECOND));
/* verify BYE and RR */
j = 0;
seen_bye = FALSE;
while (!seen_bye) {
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
fail_unless (buf != NULL);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
rtcp_type = gst_rtcp_packet_get_type (&rtcp_packet);
if (rtcp_type == GST_RTCP_TYPE_RR) {
ssrc = gst_rtcp_packet_rr_get_ssrc (&rtcp_packet);
if (ssrc == 0x01BADBAD) {
j |= 0x1;
fail_unless_equals_int (internal_ssrc, ssrc);
/* 2 => RR, SDES. There is no BYE here */
fail_unless_equals_int (2, gst_rtcp_buffer_get_packet_count (&rtcp));
} else if (ssrc == 0x01020304) {
j |= 0x4;
g_assert_cmpint (ssrc, !=, internal_ssrc);
/* 2 => RR, SDES. There is no BYE here */
g_assert_cmpint (gst_rtcp_buffer_get_packet_count (&rtcp), ==, 2);
} else if (ssrc == 0xDEADBEEF) {
j |= 0x2;
g_assert_cmpint (ssrc, !=, internal_ssrc);
/* 3 => RR, SDES, BYE */
if (gst_rtcp_buffer_get_packet_count (&rtcp) == 3) {
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_BYE,
gst_rtcp_packet_get_type (&rtcp_packet));
seen_bye = TRUE;
}
}
}
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
}
fail_unless_equals_int (0x7, j); /* verify we got both all BYE and RR */
session_harness_free (h);
}
GST_END_TEST;
typedef struct
{
guint8 subtype;
guint32 ssrc;
gchar *name;
GstBuffer *data;
} RTCPAppResult;
static void
on_app_rtcp_cb (GObject * session, guint subtype, guint ssrc,
const gchar * name, GstBuffer * data, RTCPAppResult * result)
{
result->subtype = subtype;
result->ssrc = ssrc;
result->name = g_strdup (name);
result->data = data ? gst_buffer_ref (data) : NULL;
}
GST_START_TEST (test_receive_rtcp_app_packet)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket packet;
RTCPAppResult result = { 0 };
guint8 data[] = { 0x11, 0x22, 0x33, 0x44 };
g_signal_connect (h->internal_session, "on-app-rtcp",
G_CALLBACK (on_app_rtcp_cb), &result);
/* Push APP buffer with no data */
buf = gst_rtcp_buffer_new (1000);
fail_unless (gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp));
fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_APP, &packet));
gst_rtcp_packet_app_set_subtype (&packet, 21);
gst_rtcp_packet_app_set_ssrc (&packet, 0x11111111);
gst_rtcp_packet_app_set_name (&packet, "Test");
gst_rtcp_buffer_unmap (&rtcp);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtcp (h, buf));
fail_unless_equals_int (21, result.subtype);
fail_unless_equals_int (0x11111111, result.ssrc);
fail_unless_equals_string ("Test", result.name);
fail_unless_equals_pointer (NULL, result.data);
g_free (result.name);
/* Push APP buffer with data */
memset (&result, 0, sizeof (result));
buf = gst_rtcp_buffer_new (1000);
fail_unless (gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp));
fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_APP, &packet));
gst_rtcp_packet_app_set_subtype (&packet, 22);
gst_rtcp_packet_app_set_ssrc (&packet, 0x22222222);
gst_rtcp_packet_app_set_name (&packet, "Test");
gst_rtcp_packet_app_set_data_length (&packet, sizeof (data) / 4);
memcpy (gst_rtcp_packet_app_get_data (&packet), data, sizeof (data));
gst_rtcp_buffer_unmap (&rtcp);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtcp (h, buf));
fail_unless_equals_int (22, result.subtype);
fail_unless_equals_int (0x22222222, result.ssrc);
fail_unless_equals_string ("Test", result.name);
fail_unless (gst_buffer_memcmp (result.data, 0, data, sizeof (data)) == 0);
g_free (result.name);
gst_buffer_unref (result.data);
session_harness_free (h);
}
GST_END_TEST;
static void
stats_test_cb (GObject * object, GParamSpec * spec, gpointer data)
{
guint num_sources = 0;
gboolean *cb_called = data;
g_assert (*cb_called == FALSE);
/* We should be able to get a rtpsession property
without introducing the deadlock */
g_object_get (object, "num-sources", &num_sources, NULL);
*cb_called = TRUE;
}
GST_START_TEST (test_dont_lock_on_stats)
{
SessionHarness *h = session_harness_new ();
gboolean cb_called = FALSE;
/* connect to the stats-reporting */
g_signal_connect (h->session, "notify::stats",
G_CALLBACK (stats_test_cb), &cb_called);
/* Push RTP buffer to make sure RTCP-thread have started */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_send_rtp (h, generate_test_buffer (0, 0xDEADBEEF)));
/* crank the RTCP-thread and pull out rtcp, generating a stats-callback */
session_harness_crank_clock (h);
gst_buffer_unref (session_harness_pull_rtcp (h));
fail_unless (cb_called);
session_harness_free (h);
}
GST_END_TEST;
static void
suspicious_bye_cb (GObject * object, GParamSpec * spec, gpointer data)
{
GValueArray *stats_arr;
GstStructure *stats, *internal_stats;
gboolean *cb_called = data;
gboolean internal = FALSE, sent_bye = TRUE;
guint ssrc = 0;
guint i;
g_assert (*cb_called == FALSE);
*cb_called = TRUE;
g_object_get (object, "stats", &stats, NULL);
stats_arr =
g_value_get_boxed (gst_structure_get_value (stats, "source-stats"));
g_assert (stats_arr != NULL);
fail_unless (stats_arr->n_values >= 1);
for (i = 0; i < stats_arr->n_values; i++) {
internal_stats = g_value_get_boxed (g_value_array_get_nth (stats_arr, i));
g_assert (internal_stats != NULL);
gst_structure_get (internal_stats,
"ssrc", G_TYPE_UINT, &ssrc,
"internal", G_TYPE_BOOLEAN, &internal,
"received-bye", G_TYPE_BOOLEAN, &sent_bye, NULL);
if (ssrc == 0xDEADBEEF) {
fail_unless (internal);
fail_unless (!sent_bye);
break;
}
}
fail_unless_equals_int (ssrc, 0xDEADBEEF);
gst_structure_free (stats);
}
static GstBuffer *
create_bye_rtcp (guint32 ssrc)
{
GstRTCPPacket packet;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GSocketAddress *saddr;
GstBuffer *buffer = gst_rtcp_buffer_new (1000);
fail_unless (gst_rtcp_buffer_map (buffer, GST_MAP_READWRITE, &rtcp));
fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_BYE, &packet));
gst_rtcp_packet_bye_add_ssrc (&packet, ssrc);
gst_rtcp_buffer_unmap (&rtcp);
/* Need to add meta to trigger collision detection */
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 3490);
gst_buffer_add_net_address_meta (buffer, saddr);
g_object_unref (saddr);
return buffer;
}
GST_START_TEST (test_ignore_suspicious_bye)
{
SessionHarness *h = session_harness_new ();
gboolean cb_called = FALSE;
/* connect to the stats-reporting */
g_signal_connect (h->session, "notify::stats",
G_CALLBACK (suspicious_bye_cb), &cb_called);
/* Push RTP buffer making our internal SSRC=0xDEADBEEF */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_send_rtp (h, generate_test_buffer (0, 0xDEADBEEF)));
/* Receive BYE RTCP referencing our internal SSRC(!?!) (0xDEADBEEF) */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtcp (h, create_bye_rtcp (0xDEADBEEF)));
/* "crank" and check the stats */
session_harness_crank_clock (h);
gst_buffer_unref (session_harness_pull_rtcp (h));
fail_unless (cb_called);
session_harness_free (h);
}
GST_END_TEST;
static GstBuffer *
create_buffer (guint8 * data, gsize size)
{
return gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data, size, 0, size, NULL, NULL);
}
GST_START_TEST (test_receive_regular_pli)
{
SessionHarness *h = session_harness_new ();
GstEvent *ev;
const GstStructure *s;
/* PLI packet */
guint8 rtcp_pkt[] = {
0x81, /* PLI */
0xce, /* Type 206 Application layer feedback */
0x00, 0x02, /* Length */
0x37, 0x56, 0x93, 0xed, /* Sender SSRC */
0x37, 0x56, 0x93, 0xed /* Media SSRC */
};
fail_unless_equals_int (GST_FLOW_OK,
session_harness_send_rtp (h, generate_test_buffer (0, 928420845)));
session_harness_recv_rtcp (h, create_buffer (rtcp_pkt, sizeof (rtcp_pkt)));
fail_unless_equals_int (3,
gst_harness_upstream_events_received (h->send_rtp_h));
/* Remove the first 2 reconfigure events */
fail_unless ((ev = gst_harness_pull_upstream_event (h->send_rtp_h)) != NULL);
fail_unless_equals_int (GST_EVENT_RECONFIGURE, GST_EVENT_TYPE (ev));
gst_event_unref (ev);
fail_unless ((ev = gst_harness_pull_upstream_event (h->send_rtp_h)) != NULL);
fail_unless_equals_int (GST_EVENT_RECONFIGURE, GST_EVENT_TYPE (ev));
gst_event_unref (ev);
/* Then pull and check the force key-unit event */
fail_unless ((ev = gst_harness_pull_upstream_event (h->send_rtp_h)) != NULL);
fail_unless_equals_int (GST_EVENT_CUSTOM_UPSTREAM, GST_EVENT_TYPE (ev));
fail_unless (gst_video_event_is_force_key_unit (ev));
s = gst_event_get_structure (ev);
fail_unless (s);
fail_unless (G_VALUE_HOLDS_UINT (gst_structure_get_value (s, "ssrc")));
gst_event_unref (ev);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_receive_pli_no_sender_ssrc)
{
SessionHarness *h = session_harness_new ();
GstEvent *ev;
const GstStructure *s;
/* PLI packet */
guint8 rtcp_pkt[] = {
0x81, /* PLI */
0xce, /* Type 206 Application layer feedback */
0x00, 0x02, /* Length */
0x00, 0x00, 0x00, 0x00, /* Sender SSRC */
0x37, 0x56, 0x93, 0xed /* Media SSRC */
};
fail_unless_equals_int (GST_FLOW_OK,
session_harness_send_rtp (h, generate_test_buffer (0, 928420845)));
session_harness_recv_rtcp (h, create_buffer (rtcp_pkt, sizeof (rtcp_pkt)));
fail_unless_equals_int (3,
gst_harness_upstream_events_received (h->send_rtp_h));
/* Remove the first 2 reconfigure events */
fail_unless ((ev = gst_harness_pull_upstream_event (h->send_rtp_h)) != NULL);
fail_unless_equals_int (GST_EVENT_RECONFIGURE, GST_EVENT_TYPE (ev));
gst_event_unref (ev);
fail_unless ((ev = gst_harness_pull_upstream_event (h->send_rtp_h)) != NULL);
fail_unless_equals_int (GST_EVENT_RECONFIGURE, GST_EVENT_TYPE (ev));
gst_event_unref (ev);
/* Then pull and check the force key-unit event */
fail_unless ((ev = gst_harness_pull_upstream_event (h->send_rtp_h)) != NULL);
fail_unless_equals_int (GST_EVENT_CUSTOM_UPSTREAM, GST_EVENT_TYPE (ev));
fail_unless (gst_video_event_is_force_key_unit (ev));
s = gst_event_get_structure (ev);
fail_unless (s);
fail_unless (G_VALUE_HOLDS_UINT (gst_structure_get_value (s, "ssrc")));
gst_event_unref (ev);
session_harness_free (h);
}
GST_END_TEST;
static void
add_rtcp_sdes_packet (GstBuffer * gstbuf, guint32 ssrc, const char *cname)
{
GstRTCPPacket packet;
GstRTCPBuffer buffer = GST_RTCP_BUFFER_INIT;
gst_rtcp_buffer_map (gstbuf, GST_MAP_READWRITE, &buffer);
fail_unless (gst_rtcp_buffer_add_packet (&buffer, GST_RTCP_TYPE_SDES,
&packet) == TRUE);
fail_unless (gst_rtcp_packet_sdes_add_item (&packet, ssrc) == TRUE);
fail_unless (gst_rtcp_packet_sdes_add_entry (&packet, GST_RTCP_SDES_CNAME,
strlen (cname), (const guint8 *) cname));
gst_rtcp_buffer_unmap (&buffer);
}
static void
on_ssrc_collision_cb (GstElement * rtpsession, guint ssrc, gpointer user_data)
{
gboolean *had_collision = user_data;
*had_collision = TRUE;
}
GST_START_TEST (test_ssrc_collision_when_sending)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstEvent *ev;
GSocketAddress *saddr;
gboolean had_collision = FALSE;
g_signal_connect (h->internal_session, "on-ssrc-collision",
G_CALLBACK (on_ssrc_collision_cb), &had_collision);
/* Push SDES with identical SSRC as what we will use for sending RTP,
establishing this as a non-internal SSRC */
buf = gst_rtcp_buffer_new (1400);
add_rtcp_sdes_packet (buf, 0x12345678, "test@foo.bar");
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
session_harness_recv_rtcp (h, buf);
fail_unless (had_collision == FALSE);
/* Push RTP buffer making our internal SSRC=0x12345678 */
buf = generate_test_buffer (0, 0x12345678);
fail_unless_equals_int (GST_FLOW_OK, session_harness_send_rtp (h, buf));
fail_unless (had_collision == TRUE);
/* Verify the packet we just sent is not being boomeranged back to us
as a received packet! */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
while ((ev = gst_harness_try_pull_upstream_event (h->send_rtp_h)) != NULL) {
if (GST_EVENT_CUSTOM_UPSTREAM == GST_EVENT_TYPE (ev) &&
gst_event_has_name (ev, "GstRTPCollision"))
break;
gst_event_unref (ev);
}
fail_unless (ev != NULL);
gst_event_unref (ev);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_ssrc_collision_when_sending_loopback)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstEvent *ev;
GSocketAddress *saddr;
gboolean had_collision = FALSE;
guint new_ssrc;
const GstStructure *s;
g_signal_connect (h->internal_session, "on-ssrc-collision",
G_CALLBACK (on_ssrc_collision_cb), &had_collision);
/* Push SDES with identical SSRC as what we will use for sending RTP,
establishing this as a non-internal SSRC */
buf = gst_rtcp_buffer_new (1400);
add_rtcp_sdes_packet (buf, 0x12345678, "test@foo.bar");
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
session_harness_recv_rtcp (h, buf);
fail_unless (had_collision == FALSE);
/* Push RTP buffer making our internal SSRC=0x12345678 */
buf = generate_test_buffer (0, 0x12345678);
fail_unless_equals_int (GST_FLOW_OK, session_harness_send_rtp (h, buf));
fail_unless (had_collision == TRUE);
/* Verify the packet we just sent is not being boomeranged back to us
as a received packet! */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
while ((ev = gst_harness_try_pull_upstream_event (h->send_rtp_h)) != NULL) {
if (GST_EVENT_CUSTOM_UPSTREAM == GST_EVENT_TYPE (ev) &&
gst_event_has_name (ev, "GstRTPCollision"))
break;
gst_event_unref (ev);
}
fail_unless (ev != NULL);
s = gst_event_get_structure (ev);
fail_unless (gst_structure_get_uint (s, "ssrc", &new_ssrc));
gst_event_unref (ev);
/* reset collision detection */
had_collision = FALSE;
/* Push SDES from same address but with the new SSRC, as if someone
* was looping back our packets to us */
buf = gst_rtcp_buffer_new (1400);
add_rtcp_sdes_packet (buf, new_ssrc, "test@foo.bar");
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
session_harness_recv_rtcp (h, buf);
/* Make sure we didn't detect a collision */
fail_unless (had_collision == FALSE);
/* Make sure there is no collision event either */
while ((ev = gst_harness_try_pull_upstream_event (h->send_rtp_h)) != NULL) {
fail_if (GST_EVENT_CUSTOM_UPSTREAM == GST_EVENT_TYPE (ev) &&
gst_event_has_name (ev, "GstRTPCollision"));
gst_event_unref (ev);
}
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_ssrc_collision_when_receiving)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstEvent *ev;
GSocketAddress *saddr;
gboolean had_collision = FALSE;
g_signal_connect (h->internal_session, "on-ssrc-collision",
G_CALLBACK (on_ssrc_collision_cb), &had_collision);
/* Push RTP buffer making our internal SSRC=0x12345678 */
buf = generate_test_buffer (0, 0x12345678);
fail_unless_equals_int (GST_FLOW_OK, session_harness_send_rtp (h, buf));
fail_unless (had_collision == FALSE);
/* Push SDES with identical SSRC as what we used to send RTP,
to create a collision */
buf = gst_rtcp_buffer_new (1400);
add_rtcp_sdes_packet (buf, 0x12345678, "test@foo.bar");
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
session_harness_recv_rtcp (h, buf);
fail_unless (had_collision == TRUE);
/* Verify the packet we just sent is not being boomeranged back to us
as a received packet! */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
while ((ev = gst_harness_try_pull_upstream_event (h->send_rtp_h)) != NULL) {
if (GST_EVENT_CUSTOM_UPSTREAM == GST_EVENT_TYPE (ev))
break;
gst_event_unref (ev);
}
fail_unless (ev != NULL);
gst_event_unref (ev);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_ssrc_collision_third_party)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GSocketAddress *saddr;
gboolean had_collision = FALSE;
guint i;
g_signal_connect (h->internal_session, "on-ssrc-collision",
G_CALLBACK (on_ssrc_collision_cb), &had_collision);
for (i = 0; i < 4; i++) {
/* Receive 4 buffers SSRC=0x12345678 from 127.0.0.1 to pass probation */
buf = generate_test_buffer (i, 0x12345678);
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtp (h, buf));
}
/* Check that we received the first 4 buffer */
for (i = 0; i < 4; i++) {
buf = gst_harness_pull (h->recv_rtp_h);
fail_unless (buf);
gst_buffer_unref (buf);
}
fail_unless (had_collision == FALSE);
/* Receive buffer SSRC=0x12345678 from 127.0.0.2 */
buf = generate_test_buffer (0, 0x12345678);
saddr = g_inet_socket_address_new_from_string ("127.0.0.2", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtp (h, buf));
/* Verify the packet we just sent has been dropped */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
/* Receive another buffer SSRC=0x12345678 from 127.0.0.1 */
buf = generate_test_buffer (0, 0x12345678);
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtp (h, buf));
/* Check that we received the other buffer */
buf = gst_harness_pull (h->recv_rtp_h);
fail_unless (buf);
gst_buffer_unref (buf);
fail_unless (had_collision == FALSE);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_ssrc_collision_third_party_favor_new)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GSocketAddress *saddr;
gboolean had_collision = FALSE;
guint i;
g_object_set (h->internal_session, "favor-new", TRUE, NULL);
g_signal_connect (h->internal_session, "on-ssrc-collision",
G_CALLBACK (on_ssrc_collision_cb), &had_collision);
for (i = 0; i < 4; i++) {
/* Receive 4 buffers SSRC=0x12345678 from 127.0.0.1 to pass probation */
buf = generate_test_buffer (i, 0x12345678);
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtp (h, buf));
}
/* Check that we received the first 4 buffer */
for (i = 0; i < 4; i++) {
buf = gst_harness_pull (h->recv_rtp_h);
fail_unless (buf);
gst_buffer_unref (buf);
}
fail_unless (had_collision == FALSE);
/* Receive buffer SSRC=0x12345678 from 127.0.0.2 */
buf = generate_test_buffer (0, 0x12345678);
saddr = g_inet_socket_address_new_from_string ("127.0.0.2", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
g_object_unref (saddr);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtp (h, buf));
/* Check that we received the other buffer */
buf = gst_harness_pull (h->recv_rtp_h);
fail_unless (buf);
gst_buffer_unref (buf);
fail_unless (had_collision == FALSE);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_ssrc_collision_never_send_on_non_internal_source)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstEvent *ev;
GSocketAddress *saddr;
gboolean had_collision = FALSE;
g_signal_connect (h->internal_session, "on-ssrc-collision",
G_CALLBACK (on_ssrc_collision_cb), &had_collision);
/* Push SDES with identical SSRC as what we will use for sending RTP,
establishing this as a non-internal SSRC */
buf = gst_rtcp_buffer_new (1400);
add_rtcp_sdes_packet (buf, 0xdeadbeef, "test@foo.bar");
saddr = g_inet_socket_address_new_from_string ("127.0.0.1", 8080);
gst_buffer_add_net_address_meta (buf, saddr);
session_harness_recv_rtcp (h, buf);
g_object_unref (saddr);
fail_unless (had_collision == FALSE);
/* Push RTP buffer making our internal SSRC=0xdeadbeef */
buf = generate_test_buffer (0, 0xdeadbeef);
fail_unless_equals_int (GST_FLOW_OK, session_harness_send_rtp (h, buf));
fail_unless (had_collision == TRUE);
/* verify we drop this packet because of SSRC collision */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->send_rtp_h));
/* Verify the packet we just sent is not being boomeranged back to us
as a received packet! */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
/* verify we get an upstream GstRTPCollision event */
while ((ev = gst_harness_try_pull_upstream_event (h->send_rtp_h)) != NULL) {
if (GST_EVENT_CUSTOM_UPSTREAM == GST_EVENT_TYPE (ev) &&
gst_event_has_name (ev, "GstRTPCollision"))
break;
gst_event_unref (ev);
}
fail_unless (ev != NULL);
gst_event_unref (ev);
/* Push another RTP buffer and verify that one is not send or "received" as well */
buf = generate_test_buffer (1, 0xdeadbeef);
fail_unless_equals_int (GST_FLOW_OK, session_harness_send_rtp (h, buf));
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->send_rtp_h));
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
/* now generate a BYE to the non-internal SSRC */
session_harness_produce_rtcp (h, 1);
/* and verify we can now send using that SSRC */
buf = generate_test_buffer (2, 0xdeadbeef);
fail_unless_equals_int (GST_FLOW_OK, session_harness_send_rtp (h, buf));
fail_unless_equals_int (1, gst_harness_buffers_in_queue (h->send_rtp_h));
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->recv_rtp_h));
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_request_fir)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
guint8 *fci_data;
/* add FIR-capabilites to our caps */
gst_caps_set_simple (h->caps, "rtcp-fb-ccm-fir", G_TYPE_BOOLEAN, TRUE, NULL);
/* clear pt-map to removed the cached caps without fir */
g_signal_emit_by_name (h->session, "clear-pt-map");
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire from 2 different ssrcs */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x87654321)));
/* fix to make the test deterministic: We need to wait for the RTCP-thread
to have settled to ensure the key-unit will considered once released */
gst_test_clock_wait_for_next_pending_id (h->testclock, NULL);
/* request FIR for both SSRCs */
session_harness_force_key_unit (h, 0, 0x12345678, TEST_BUF_PT, NULL, NULL);
session_harness_force_key_unit (h, 0, 0x87654321, TEST_BUF_PT, NULL, NULL);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our FIR */
fail_unless_equals_int (GST_RTCP_TYPE_PSFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_PSFB_TYPE_FIR,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
/* FIR has sender-ssrc as normal, but media-ssrc set to 0, because
it can have multiple media-ssrcs in its fci-data */
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0, gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fail_unless_equals_int (16,
gst_rtcp_packet_fb_get_fci_length (&rtcp_packet) * sizeof (guint32));
/* verify the FIR contains both SSRCs */
fail_unless_equals_int (0x87654321, GST_READ_UINT32_BE (fci_data));
fail_unless_equals_int (1, fci_data[4]);
fail_unless_equals_int (0, fci_data[5]);
fail_unless_equals_int (0, fci_data[6]);
fail_unless_equals_int (0, fci_data[7]);
fci_data += 8;
fail_unless_equals_int (0x12345678, GST_READ_UINT32_BE (fci_data));
fail_unless_equals_int (1, fci_data[4]);
fail_unless_equals_int (0, fci_data[5]);
fail_unless_equals_int (0, fci_data[6]);
fail_unless_equals_int (0, fci_data[7]);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_request_pli)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
/* add PLI-capabilites to our caps */
gst_caps_set_simple (h->caps, "rtcp-fb-nack-pli", G_TYPE_BOOLEAN, TRUE, NULL);
/* clear pt-map to removed the cached caps without PLI */
g_signal_emit_by_name (h->session, "clear-pt-map");
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Wait for first regular RTCP to be sent so that we are clear to send early RTCP */
session_harness_produce_rtcp (h, 1);
gst_buffer_unref (session_harness_pull_rtcp (h));
/* request PLI */
session_harness_force_key_unit (h, 0, 0x12345678, TEST_BUF_PT, NULL, NULL);
/* PLI should be produced immediately as early RTCP is allowed. Pull buffer
without advancing the clock to ensure this is the case */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our PLI */
fail_unless_equals_int (GST_RTCP_TYPE_PSFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_PSFB_TYPE_PLI,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fail_unless_equals_int (0, gst_rtcp_packet_fb_get_fci_length (&rtcp_packet));
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_request_fir_after_pli_in_caps)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
guint8 *fci_data;
/* add PLI-capabilites to our caps */
gst_caps_set_simple (h->caps, "rtcp-fb-nack-pli", G_TYPE_BOOLEAN, TRUE, NULL);
/* clear pt-map to removed the cached caps without PLI */
g_signal_emit_by_name (h->session, "clear-pt-map");
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Wait for first regular RTCP to be sent so that we are clear to send early RTCP */
session_harness_produce_rtcp (h, 1);
gst_buffer_unref (session_harness_pull_rtcp (h));
/* request PLI */
session_harness_force_key_unit (h, 0, 0x12345678, TEST_BUF_PT, NULL, NULL);
/* PLI should be produced immediately as early RTCP is allowed. Pull buffer
without advancing the clock to ensure this is the case */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our PLI */
fail_unless_equals_int (GST_RTCP_TYPE_PSFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_PSFB_TYPE_PLI,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fail_unless_equals_int (0, gst_rtcp_packet_fb_get_fci_length (&rtcp_packet));
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
/* Rebuild the caps */
gst_caps_unref (h->caps);
h->caps = generate_caps ();
/* add FIR-capabilites to our caps */
gst_caps_set_simple (h->caps, "rtcp-fb-ccm-fir", G_TYPE_BOOLEAN, TRUE, NULL);
/* clear pt-map to removed the cached caps without fir */
g_signal_emit_by_name (h->session, "clear-pt-map");
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* fix to make the test deterministic: We need to wait for the RTCP-thread
to have settled to ensure the key-unit will considered once released */
gst_test_clock_wait_for_next_pending_id (h->testclock, NULL);
/* request FIR */
session_harness_force_key_unit (h, 0, 0x12345678, TEST_BUF_PT, NULL, NULL);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our FIR */
fail_unless_equals_int (GST_RTCP_TYPE_PSFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_PSFB_TYPE_FIR,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
/* FIR has sender-ssrc as normal, but media-ssrc set to 0, because
it can have multiple media-ssrcs in its fci-data */
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0, gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fail_unless_equals_int (8,
gst_rtcp_packet_fb_get_fci_length (&rtcp_packet) * sizeof (guint32));
/* verify the FIR contains the SSRC */
fail_unless_equals_int (0x12345678, GST_READ_UINT32_BE (fci_data));
fail_unless_equals_int (1, fci_data[4]);
fail_unless_equals_int (0, fci_data[5]);
fail_unless_equals_int (0, fci_data[6]);
fail_unless_equals_int (0, fci_data[7]);
fail_unless_equals_int (0, fci_data[7]);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_illegal_rtcp_fb_packet)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
/* Zero length RTCP feedback packet (reduced size) */
const guint8 rtcp_zero_fb_pkt[] = { 0x8f, 0xce, 0x00, 0x00 };
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
buf = gst_buffer_new_and_alloc (sizeof (rtcp_zero_fb_pkt));
gst_buffer_fill (buf, 0, rtcp_zero_fb_pkt, sizeof (rtcp_zero_fb_pkt));
GST_BUFFER_DTS (buf) = GST_BUFFER_PTS (buf) = G_GUINT64_CONSTANT (0);
/* Push the packet, this did previously crash because length of packet was
* never validated. */
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtcp (h, buf));
session_harness_free (h);
}
GST_END_TEST;
typedef struct
{
GCond *cond;
GMutex *mutex;
gboolean fired;
} FeedbackRTCPCallbackData;
static void
feedback_rtcp_cb (GstElement * element, guint fbtype, guint fmt,
guint sender_ssrc, guint media_ssrc, GstBuffer * fci,
FeedbackRTCPCallbackData * cb_data)
{
g_mutex_lock (cb_data->mutex);
cb_data->fired = TRUE;
g_cond_wait (cb_data->cond, cb_data->mutex);
g_mutex_unlock (cb_data->mutex);
}
static void *
send_feedback_rtcp (SessionHarness * h)
{
GstRTCPPacket packet;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstBuffer *buffer = gst_rtcp_buffer_new (1000);
fail_unless (gst_rtcp_buffer_map (buffer, GST_MAP_READWRITE, &rtcp));
fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_PSFB, &packet));
gst_rtcp_packet_fb_set_type (&packet, GST_RTCP_PSFB_TYPE_PLI);
gst_rtcp_packet_fb_set_fci_length (&packet, 0);
gst_rtcp_packet_fb_set_media_ssrc (&packet, 0xABE2B0B);
gst_rtcp_packet_fb_set_media_ssrc (&packet, 0xDEADBEEF);
gst_rtcp_buffer_unmap (&rtcp);
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtcp (h, buffer));
return NULL;
}
GST_START_TEST (test_feedback_rtcp_race)
{
SessionHarness *h = session_harness_new ();
GCond cond;
GMutex mutex;
FeedbackRTCPCallbackData cb_data;
GThread *send_rtcp_thread;
g_cond_init (&cond);
g_mutex_init (&mutex);
cb_data.cond = &cond;
cb_data.mutex = &mutex;
cb_data.fired = FALSE;
g_signal_connect (h->internal_session, "on-feedback-rtcp",
G_CALLBACK (feedback_rtcp_cb), &cb_data);
/* Push RTP buffer making external source with SSRC=0xDEADBEEF */
fail_unless_equals_int (GST_FLOW_OK, session_harness_recv_rtp (h,
generate_test_buffer (0, 0xDEADBEEF)));
/* Push feedback RTCP with media SSRC=0xDEADBEEF */
send_rtcp_thread = g_thread_new (NULL, (GThreadFunc) send_feedback_rtcp, h);
/* Waiting for feedback RTCP callback to fire */
while (!cb_data.fired)
g_usleep (G_USEC_PER_SEC / 100);
/* While send_rtcp_thread thread is waiting for our signal
advance the clock by 30sec triggering removal of 0xDEADBEEF,
as if the source was inactive for too long */
session_harness_advance_and_crank (h, GST_SECOND * 30);
gst_buffer_unref (session_harness_pull_rtcp (h));
/* Let send_rtcp_thread finish */
g_mutex_lock (&mutex);
g_cond_signal (&cond);
g_mutex_unlock (&mutex);
g_thread_join (send_rtcp_thread);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_dont_send_rtcp_while_idle)
{
SessionHarness *h = session_harness_new ();
/* verify the RTCP thread has not started */
fail_unless_equals_int (0, gst_test_clock_peek_id_count (h->testclock));
/* and that no RTCP has been pushed */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->rtcp_h));
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_send_rtcp_when_signalled)
{
SessionHarness *h = session_harness_new ();
gboolean ret;
/* verify the RTCP thread has not started */
fail_unless_equals_int (0, gst_test_clock_peek_id_count (h->testclock));
/* and that no RTCP has been pushed */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->rtcp_h));
/* then ask explicitly to send RTCP */
g_signal_emit_by_name (h->internal_session,
"send-rtcp-full", GST_SECOND, &ret);
/* this is FALSE due to no next RTCP check time */
fail_unless (ret == FALSE);
/* "crank" and verify RTCP now was sent */
session_harness_crank_clock (h);
gst_buffer_unref (session_harness_pull_rtcp (h));
session_harness_free (h);
}
GST_END_TEST;
static void
validate_sdes_priv (GstBuffer * buf, const char *name_ref, const char *value)
{
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket pkt;
fail_unless (gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &pkt));
do {
if (gst_rtcp_packet_get_type (&pkt) == GST_RTCP_TYPE_SDES) {
fail_unless (gst_rtcp_packet_sdes_first_entry (&pkt));
do {
GstRTCPSDESType type;
guint8 len;
guint8 *data;
fail_unless (gst_rtcp_packet_sdes_get_entry (&pkt, &type, &len, &data));
if (type == GST_RTCP_SDES_PRIV) {
char *name = g_strndup ((const gchar *) &data[1], data[0]);
len -= data[0] + 1;
data += data[0] + 1;
fail_unless_equals_int (len, strlen (value));
fail_unless (!strncmp (value, (char *) data, len));
fail_unless_equals_string (name, name_ref);
g_free (name);
goto sdes_done;
}
} while (gst_rtcp_packet_sdes_next_entry (&pkt));
g_assert_not_reached ();
}
} while (gst_rtcp_packet_move_to_next (&pkt));
g_assert_not_reached ();
sdes_done:
fail_unless (gst_rtcp_buffer_unmap (&rtcp));
}
GST_START_TEST (test_change_sent_sdes)
{
SessionHarness *h = session_harness_new ();
GstStructure *s;
GstBuffer *buf;
gboolean ret;
GstFlowReturn res;
/* verify the RTCP thread has not started */
fail_unless_equals_int (0, gst_test_clock_peek_id_count (h->testclock));
/* and that no RTCP has been pushed */
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h->rtcp_h));
s = gst_structure_new ("application/x-rtp-source-sdes",
"other", G_TYPE_STRING, "first", NULL);
g_object_set (h->internal_session, "sdes", s, NULL);
gst_structure_free (s);
/* then ask explicitly to send RTCP */
g_signal_emit_by_name (h->internal_session,
"send-rtcp-full", GST_SECOND, &ret);
/* this is FALSE due to no next RTCP check time */
fail_unless (ret == FALSE);
/* "crank" and verify RTCP now was sent */
session_harness_crank_clock (h);
buf = session_harness_pull_rtcp (h);
fail_unless (buf);
validate_sdes_priv (buf, "other", "first");
gst_buffer_unref (buf);
/* Change the SDES */
s = gst_structure_new ("application/x-rtp-source-sdes",
"other", G_TYPE_STRING, "second", NULL);
g_object_set (h->internal_session, "sdes", s, NULL);
gst_structure_free (s);
/* Send an RTP packet */
buf = generate_test_buffer (22, 10000);
res = session_harness_send_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
/* "crank" enough to ensure a RTCP packet has been produced ! */
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
session_harness_crank_clock (h);
/* and verify RTCP now was sent with new SDES */
buf = session_harness_pull_rtcp (h);
validate_sdes_priv (buf, "other", "second");
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_request_nack)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
guint8 *fci_data;
guint32 fci_length;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Wait for first regular RTCP to be sent so that we are clear to send early RTCP */
session_harness_produce_rtcp (h, 1);
gst_buffer_unref (session_harness_pull_rtcp (h));
/* request NACK immediately */
session_harness_rtp_retransmission_request (h, 0x12345678, 1234, 0, 0, 0);
/* NACK should be produced immediately as early RTCP is allowed. Pull buffer
without advancing the clock to ensure this is the case */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_NACK,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fci_length =
gst_rtcp_packet_fb_get_fci_length (&rtcp_packet) * sizeof (guint32);
fail_unless_equals_int (4, fci_length);
fail_unless_equals_int (GST_READ_UINT32_BE (fci_data), 1234L << 16);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
typedef struct
{
gulong id;
GstPad *pad;
GMutex mutex;
GCond cond;
gboolean blocked;
} BlockingProbeData;
static GstPadProbeReturn
on_rtcp_pad_blocked (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
BlockingProbeData *probe = user_data;
g_mutex_lock (&probe->mutex);
probe->blocked = TRUE;
g_cond_signal (&probe->cond);
g_mutex_unlock (&probe->mutex);
return GST_PAD_PROBE_OK;
}
static void
session_harness_block_rtcp (SessionHarness * h, BlockingProbeData * probe)
{
probe->pad = gst_element_get_static_pad (h->session, "send_rtcp_src");
fail_unless (probe->pad);
g_mutex_init (&probe->mutex);
g_cond_init (&probe->cond);
probe->blocked = FALSE;
probe->id = gst_pad_add_probe (probe->pad,
GST_PAD_PROBE_TYPE_BLOCK | GST_PAD_PROBE_TYPE_BUFFER |
GST_PAD_PROBE_TYPE_BUFFER_LIST, on_rtcp_pad_blocked, probe, NULL);
g_mutex_lock (&probe->mutex);
while (!probe->blocked) {
session_harness_crank_clock (h);
g_cond_wait (&probe->cond, &probe->mutex);
}
g_mutex_unlock (&probe->mutex);
}
static void
session_harness_unblock_rtcp (SessionHarness * h, BlockingProbeData * probe)
{
gst_pad_remove_probe (probe->pad, probe->id);
gst_object_unref (probe->pad);
g_mutex_clear (&probe->mutex);
}
GST_START_TEST (test_request_nack_surplus)
{
SessionHarness *h = session_harness_new ();
GstRTCPPacket rtcp_packet;
BlockingProbeData probe;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
guint8 *fci_data;
gint i;
GstStructure *sdes;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* sdes cname has variable size, fix it */
g_object_get (h->internal_session, "sdes", &sdes, NULL);
gst_structure_set (sdes, "cname", G_TYPE_STRING, "user@test", NULL);
g_object_set (h->internal_session, "sdes", sdes, NULL);
gst_structure_free (sdes);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Block on first regular RTCP so we can fill the nack list */
session_harness_block_rtcp (h, &probe);
/* request 400 NACK with 17 seqnum distance to optain the worst possible
* packing */
for (i = 0; i < 350; i++)
session_harness_rtp_retransmission_request (h, 0x12345678, 1234 + i * 17,
0, 0, 0);
/* and the last 50 with a 2s deadline */
for (i = 350; i < 400; i++)
session_harness_rtp_retransmission_request (h, 0x12345678, 1234 + i * 17,
0, 2000, 0);
/* Unblock and wait for the regular and first early packet */
session_harness_unblock_rtcp (h, &probe);
session_harness_produce_rtcp (h, 2);
/* Move time forward, so that only the remaining 50 are still up to date */
session_harness_advance_and_crank (h, GST_SECOND);
session_harness_produce_rtcp (h, 3);
/* ignore the regular RTCP packet */
buf = session_harness_pull_rtcp (h);
gst_buffer_unref (buf);
/* validate the first early RTCP which should hold 335 Nack */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_NACK,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fail_unless_equals_int (340,
gst_rtcp_packet_fb_get_fci_length (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fail_unless_equals_int (GST_READ_UINT32_BE (fci_data), 1234L << 16);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
/* validate the second early RTCP which should hold 50 Nack */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_NACK,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fail_unless_equals_int (50, gst_rtcp_packet_fb_get_fci_length (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fail_unless_equals_int (GST_READ_UINT32_BE (fci_data),
(guint16) (1234 + 350 * 17) << 16);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_request_nack_packing)
{
SessionHarness *h = session_harness_new ();
GstRTCPPacket rtcp_packet;
BlockingProbeData probe;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
guint8 *fci_data;
gint i;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Block on first regular RTCP so we can fill the nack list */
session_harness_block_rtcp (h, &probe);
/* append 16 consecutive seqnum */
for (i = 1; i < 17; i++)
session_harness_rtp_retransmission_request (h, 0x12345678, 1234 + i,
0, 0, 0);
/* prepend one, still consecutive */
session_harness_rtp_retransmission_request (h, 0x12345678, 1234, 0, 0, 0);
/* update it */
session_harness_rtp_retransmission_request (h, 0x12345678, 1234, 0, 0, 0);
/* Unblock and wait for the regular and first early packet */
session_harness_unblock_rtcp (h, &probe);
session_harness_produce_rtcp (h, 2);
/* ignore the regular RTCP packet */
buf = session_harness_pull_rtcp (h);
gst_buffer_unref (buf);
/* validate the early RTCP which should hold 1 Nack */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_NACK,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fail_unless_equals_int (1, gst_rtcp_packet_fb_get_fci_length (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fail_unless_equals_int (GST_READ_UINT32_BE (fci_data), 1234L << 16 | 0xFFFF);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_disable_sr_timestamp)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
guint64 ntptime;
guint32 rtptime;
g_object_set (h->internal_session, "disable-sr-timestamp", TRUE, NULL);
/* Push RTP buffer to make sure RTCP-thread have started */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_send_rtp (h, generate_test_buffer (0, 0xDEADBEEF)));
/* crank the RTCP-thread and pull out rtcp, generating a stats-callback */
session_harness_crank_clock (h);
buf = session_harness_pull_rtcp (h);
gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp);
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
fail_unless_equals_int (GST_RTCP_TYPE_SR,
gst_rtcp_packet_get_type (&rtcp_packet));
gst_rtcp_packet_sr_get_sender_info (&rtcp_packet, NULL, &ntptime, &rtptime,
NULL, NULL);
fail_unless_equals_uint64 (ntptime, 0);
fail_unless (rtptime == 0);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
static guint
on_sending_nacks (GObject * internal_session, guint sender_ssrc,
guint media_ssrc, GArray * nacks, GstBuffer * buffer)
{
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket packet;
guint16 seqnum = g_array_index (nacks, guint16, 0);
guint8 *data;
if (seqnum == 1235)
return 0;
fail_unless (gst_rtcp_buffer_map (buffer, GST_MAP_READWRITE, &rtcp));
fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_APP, &packet));
gst_rtcp_packet_app_set_ssrc (&packet, media_ssrc);
gst_rtcp_packet_app_set_name (&packet, "TEST");
fail_unless (gst_rtcp_packet_app_set_data_length (&packet, 1));
data = gst_rtcp_packet_app_get_data (&packet);
GST_WRITE_UINT32_BE (data, seqnum);
gst_rtcp_buffer_unmap (&rtcp);
return 1;
}
GST_START_TEST (test_on_sending_nacks)
{
SessionHarness *h = session_harness_new ();
BlockingProbeData probe;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
guint8 *data;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Block on first regular RTCP so we can fill the nack list */
session_harness_block_rtcp (h, &probe);
g_signal_connect (h->internal_session, "on-sending-nacks",
G_CALLBACK (on_sending_nacks), NULL);
/* request NACK immediately */
session_harness_rtp_retransmission_request (h, 0x12345678, 1234, 0, 0, 0);
session_harness_rtp_retransmission_request (h, 0x12345678, 1235, 0, 0, 0);
session_harness_unblock_rtcp (h, &probe);
gst_buffer_unref (session_harness_pull_rtcp (h));
session_harness_produce_rtcp (h, 2);
/* first packet only includes seqnum 1234 in an APP FB */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_APP,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_string ("TEST",
gst_rtcp_packet_app_get_name (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_app_get_ssrc (&rtcp_packet));
fail_unless_equals_int (1,
gst_rtcp_packet_app_get_data_length (&rtcp_packet));
data = gst_rtcp_packet_app_get_data (&rtcp_packet);
fail_unless_equals_int (GST_READ_UINT32_BE (data), 1234L);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
/* second will contain seqnum 1235 in a generic nack packet */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_NACK,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fail_unless_equals_int (1, gst_rtcp_packet_fb_get_fci_length (&rtcp_packet));
data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fail_unless_equals_int (GST_READ_UINT32_BE (data), 1235L << 16);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
static void
disable_probation_on_new_ssrc (GObject * session, GObject * source)
{
g_object_set (source, "probation", 0, NULL);
}
GST_START_TEST (test_disable_probation)
{
SessionHarness *h = session_harness_new ();
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
g_signal_connect (h->internal_session, "on-new-ssrc",
G_CALLBACK (disable_probation_on_new_ssrc), NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* When probation is disabled, the packet should be produced immediately */
fail_unless_equals_int (1, gst_harness_buffers_in_queue (h->recv_rtp_h));
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_request_late_nack)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket rtcp_packet;
guint8 *fci_data;
guint32 fci_length;
g_object_set (h->internal_session, "internal-ssrc", 0xDEADBEEF, NULL);
/* Receive a RTP buffer from the wire */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 0x12345678)));
/* Wait for first regular RTCP to be sent so that we are clear to send early RTCP */
session_harness_produce_rtcp (h, 1);
gst_buffer_unref (session_harness_pull_rtcp (h));
/* request NACK immediately, but also advance the clock, so the request is
* now late, but it should be kept to avoid sending an early rtcp without
* NACK. This would otherwise lead to a stall if the late packet was cause
* by high RTT, we need to send some RTX in order to update that statistic. */
session_harness_rtp_retransmission_request (h, 0x12345678, 1234, 0, 0, 0);
gst_test_clock_advance_time (h->testclock, 100 * GST_USECOND);
/* NACK should be produced immediately as early RTCP is allowed. Pull buffer
without advancing the clock to ensure this is the case */
buf = session_harness_pull_rtcp (h);
fail_unless (gst_rtcp_buffer_validate (buf));
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless_equals_int (3, gst_rtcp_buffer_get_packet_count (&rtcp));
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &rtcp_packet));
/* first a Receiver Report */
fail_unless_equals_int (GST_RTCP_TYPE_RR,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* then a SDES */
fail_unless_equals_int (GST_RTCP_TYPE_SDES,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless (gst_rtcp_packet_move_to_next (&rtcp_packet));
/* and then our NACK */
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB,
gst_rtcp_packet_get_type (&rtcp_packet));
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_NACK,
gst_rtcp_packet_fb_get_type (&rtcp_packet));
fail_unless_equals_int (0xDEADBEEF,
gst_rtcp_packet_fb_get_sender_ssrc (&rtcp_packet));
fail_unless_equals_int (0x12345678,
gst_rtcp_packet_fb_get_media_ssrc (&rtcp_packet));
fci_data = gst_rtcp_packet_fb_get_fci (&rtcp_packet);
fci_length =
gst_rtcp_packet_fb_get_fci_length (&rtcp_packet) * sizeof (guint32);
fail_unless_equals_int (4, fci_length);
fail_unless_equals_int (GST_READ_UINT32_BE (fci_data), 1234L << 16);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
static gpointer
_push_caps_events (gpointer user_data)
{
SessionHarness *h = user_data;
gint payload = 0;
while (h->running) {
GstCaps *caps = gst_caps_new_simple ("application/x-rtp",
"payload", G_TYPE_INT, payload,
NULL);
gst_harness_set_src_caps (h->recv_rtp_h, caps);
g_thread_yield ();
payload++;
}
return NULL;
}
GST_START_TEST (test_clear_pt_map_stress)
{
SessionHarness *h = session_harness_new ();
GThread *thread;
guint i;
h->running = TRUE;
thread = g_thread_new (NULL, _push_caps_events, h);
for (i = 0; i < 1000; i++) {
g_signal_emit_by_name (h->session, "clear-pt-map");
g_thread_yield ();
}
h->running = FALSE;
g_thread_join (thread);
session_harness_free (h);
}
GST_END_TEST;
static GstBuffer *
generate_stepped_ts_buffer (guint i, gboolean stepped)
{
GstBuffer *buf;
guint ts = (TEST_BUF_CLOCK_RATE * i) / 1000;
if (stepped) {
const int TEST_BUF_CLOCK_STEP = TEST_BUF_CLOCK_RATE / 30;
ts /= TEST_BUF_CLOCK_STEP;
ts *= TEST_BUF_CLOCK_STEP;
}
GST_LOG ("ts: %" GST_TIME_FORMAT " rtp: %u (%" GST_TIME_FORMAT "), seq: %u\n",
GST_TIME_ARGS (i * GST_MSECOND), ts,
GST_TIME_ARGS (gst_util_uint64_scale_int (GST_SECOND, ts,
TEST_BUF_CLOCK_RATE)), i);
buf = generate_test_buffer_full (i * GST_MSECOND, i, ts, 0xAAAA, FALSE,
TEST_BUF_PT, 0, 0);
return buf;
}
static void
test_packet_rate_impl (gboolean stepped)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
guint i;
const int PROBATION_CNT = 5;
GstStructure *stats;
GObject *source;
guint pktrate;
/* First do probation */
for (i = 0; i < PROBATION_CNT; i++) {
buf = generate_stepped_ts_buffer (i, stepped);
fail_unless_equals_int (session_harness_recv_rtp (h, buf), GST_FLOW_OK);
}
for (i = 0; i < PROBATION_CNT; i++) {
buf = gst_harness_pull (h->recv_rtp_h);
fail_unless (buf);
gst_buffer_unref (buf);
}
/* Now run the real test */
for (i = PROBATION_CNT; i < 10000; i++) {
buf = generate_stepped_ts_buffer (i, stepped);
fail_unless_equals_int (session_harness_recv_rtp (h, buf), GST_FLOW_OK);
buf = gst_harness_pull (h->recv_rtp_h);
fail_unless (buf);
gst_buffer_unref (buf);
}
g_signal_emit_by_name (h->internal_session, "get-source-by-ssrc", 0xAAAA,
&source);
g_object_get (source, "stats", &stats, NULL);
fail_unless (gst_structure_get_uint (stats, "recv-packet-rate", &pktrate));
fail_unless (pktrate > 900 && pktrate < 1100); /* Allow 10% of error */
gst_structure_free (stats);
g_object_unref (source);
session_harness_free (h);
}
GST_START_TEST (test_packet_rate)
{
test_packet_rate_impl (FALSE);
}
GST_END_TEST;
GST_START_TEST (test_stepped_packet_rate)
{
test_packet_rate_impl (TRUE);
}
GST_END_TEST;
/********************* TWCC-tests *********************/
static GstRTCPFBType
_gst_buffer_get_rtcp_fbtype (GstBuffer * buf)
{
GstRTCPFBType ret = GST_RTCP_FB_TYPE_INVALID;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket packet;
if (!gst_rtcp_buffer_validate_reduced (buf))
return ret;
if (!gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp))
return ret;
if (!gst_rtcp_buffer_get_first_packet (&rtcp, &packet))
goto done;
if (GST_RTCP_TYPE_RTPFB != gst_rtcp_packet_get_type (&packet))
goto done;
ret = gst_rtcp_packet_fb_get_type (&packet);
done:
gst_rtcp_buffer_unmap (&rtcp);
return ret;
}
static GstBuffer *
session_harness_produce_twcc (SessionHarness * h)
{
GstBuffer *buf = NULL;
while (TRUE) {
session_harness_crank_clock (h);
buf = session_harness_pull_rtcp (h);
if (GST_RTCP_RTPFB_TYPE_TWCC == _gst_buffer_get_rtcp_fbtype (buf)) {
break;
} else {
gst_buffer_unref (buf);
}
/* allow the rtcp-thread to settle before cranking again */
gst_test_clock_wait_for_next_pending_id (h->testclock, NULL);
}
return buf;
}
typedef struct
{
guint16 base_seqnum;
guint16 num_packets;
GstClockTime base_time;
GstClockTime duration;
} TWCCTestData;
static TWCCTestData twcc_header_and_run_length_test_data[] = {
{0, 10, 0, 33 * GST_MSECOND},
{65530, 12, 37 * 64 * GST_MSECOND, 10 * GST_MSECOND}, /* seqnum wrap */
{99, 200, 1024 * 64 * GST_MSECOND, 10 * GST_MSECOND}, /* many packets */
{20000, 23, 0, 250 * GST_USECOND}, /* minimal duration */
{56000, 15, 1000 * 64 * GST_MSECOND, 10 * GST_MSECOND}, /* timestamp offset */
};
GST_START_TEST (test_twcc_header_and_run_length)
{
SessionHarness *h = session_harness_new ();
gint i;
GstFlowReturn res;
GstBuffer *buf;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstRTCPPacket packet;
guint8 *fci_data;
guint16 run_length;
TWCCTestData *td = &twcc_header_and_run_length_test_data[__i__];
/* enable twcc */
session_harness_set_twcc_recv_ext_id (h, TEST_TWCC_EXT_ID);
/* receive some buffers */
for (i = 0; i < td->num_packets; i++) {
gboolean last_packet = i == (td->num_packets - 1);
GstClockTime now = gst_clock_get_time (GST_CLOCK_CAST (h->testclock));
GstClockTime ts = td->base_time + i * td->duration;
if (ts > now)
gst_test_clock_set_time (h->testclock, ts);
buf = generate_twcc_recv_buffer (i + td->base_seqnum, ts, last_packet);
res = session_harness_recv_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
buf = session_harness_produce_twcc (h);
fail_unless (buf);
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
fci_data = gst_rtcp_packet_fb_get_fci (&packet);
/* base seqnum */
fail_unless_equals_int (td->base_seqnum, GST_READ_UINT16_BE (&fci_data[0]));
/* packet count */
fail_unless_equals_int (td->num_packets, GST_READ_UINT16_BE (&fci_data[2]));
/* reference time (in 64ms units) */
fail_unless_equals_int (td->base_time,
GST_READ_UINT24_BE (&fci_data[4]) * 64 * GST_MSECOND);
/* feedback packet number */
fail_unless_equals_int (0, fci_data[7]);
/* run-length coding */
fail_unless_equals_int (0, fci_data[8] & 0x80);
/* status: small-delta */
fail_unless_equals_int (0x20, fci_data[8] & 0x60);
/* packets in run_length */
run_length = GST_READ_UINT16_BE (&fci_data[8]);
run_length = run_length & ~0xE000; /* mask out the upper 3 status bits */
fail_unless_equals_int (td->num_packets, run_length);
/* first recv-delta always 0 */
fail_unless_equals_int (0, fci_data[10]);
/* following recv-delta equal to duration (in 250us units) */
fail_unless_equals_clocktime (td->duration, fci_data[11] * 250 * GST_USECOND);
gst_rtcp_buffer_unmap (&rtcp);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
typedef struct
{
guint16 seqnum;
GstClockTime timestamp;
gboolean marker;
} TWCCPacket;
#define TWCC_DELTA_UNIT (250 * GST_USECOND)
static void
fail_unless_equals_twcc_clocktime (GstClockTime twcc_packet_ts,
GstClockTime pkt_ts)
{
fail_unless_equals_clocktime (
(twcc_packet_ts / TWCC_DELTA_UNIT) * TWCC_DELTA_UNIT, pkt_ts);
}
#define twcc_push_packets(h, packets) \
G_STMT_START { \
guint i; \
session_harness_set_twcc_recv_ext_id ((h), TEST_TWCC_EXT_ID); \
for (i = 0; i < G_N_ELEMENTS ((packets)); i++) { \
TWCCPacket *twcc_pkt = &(packets)[i]; \
GstClockTime now = gst_clock_get_time (GST_CLOCK_CAST (h->testclock)); \
if (twcc_pkt->timestamp > now) \
gst_test_clock_set_time ((h->testclock), twcc_pkt->timestamp); \
fail_unless_equals_int (GST_FLOW_OK, \
session_harness_recv_rtp ((h), \
generate_twcc_recv_buffer (twcc_pkt->seqnum, \
twcc_pkt->timestamp, twcc_pkt->marker))); \
} \
} G_STMT_END
#define twcc_verify_fci(buf, exp_fci) \
G_STMT_START { \
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT; \
GstRTCPPacket packet; \
guint8 *fci_data; \
guint16 fci_length; \
fail_unless (gst_rtcp_buffer_validate_reduced (buf)); \
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp); \
fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet)); \
fail_unless_equals_int (GST_RTCP_TYPE_RTPFB, \
gst_rtcp_packet_get_type (&packet)); \
fail_unless_equals_int (GST_RTCP_RTPFB_TYPE_TWCC, \
gst_rtcp_packet_fb_get_type (&packet)); \
fci_data = gst_rtcp_packet_fb_get_fci (&packet); \
fci_length = gst_rtcp_packet_fb_get_fci_length (&packet) * sizeof (guint32); \
GST_MEMDUMP ("fci:", fci_data, fci_length); \
fail_unless_equals_int (fci_length, sizeof (exp_fci)); \
fail_unless_equals_int (0, memcmp (fci_data, (exp_fci), fci_length)); \
gst_rtcp_buffer_unmap (&rtcp); \
} G_STMT_END
#define twcc_verify_packets_to_fci(h, packets, exp_fci) \
G_STMT_START { \
GstBuffer *buf; \
twcc_push_packets (h, packets); \
buf = session_harness_produce_twcc ((h)); \
twcc_verify_fci (buf, exp_fci); \
gst_buffer_unref (buf); \
} G_STMT_END
#define twcc_verify_packets_to_event(packets, event) \
G_STMT_START { \
guint i; \
guint j = 0; \
GValueArray *packets_array = g_value_get_boxed ( \
gst_structure_get_value (gst_event_get_structure ((event)), "packets")); \
for (i = 0; i < packets_array->n_values; i++) { \
TWCCPacket *twcc_pkt; \
GstClockTime ts; \
guint seqnum; \
gboolean lost; \
const GstStructure *pkt_s = \
gst_value_get_structure (g_value_array_get_nth (packets_array, i)); \
fail_unless (gst_structure_get_boolean (pkt_s, "lost", &lost)); \
if (lost) \
continue; \
fail_unless (gst_structure_get_clock_time (pkt_s, "remote-ts", &ts)); \
fail_unless (gst_structure_get_uint (pkt_s, "seqnum", &seqnum)); \
twcc_pkt = &(packets)[j++]; \
fail_unless_equals_int (twcc_pkt->seqnum, seqnum); \
fail_unless_equals_twcc_clocktime (twcc_pkt->timestamp, ts); \
} \
gst_event_unref (event); \
} G_STMT_END
#define twcc_verify_packets_to_packets(send_h, recv_h, packets) \
G_STMT_START { \
guint i; \
GstEvent *event; \
twcc_push_packets ((recv_h), packets); \
session_harness_recv_rtcp ((send_h), \
session_harness_produce_twcc ((recv_h))); \
for (i = 0; i < 2; i++) \
gst_event_unref (gst_harness_pull_upstream_event ((send_h)->send_rtp_h)); \
event = gst_harness_pull_upstream_event ((send_h)->send_rtp_h); \
twcc_verify_packets_to_event (packets, event); \
} G_STMT_END
#define twcc_verify_stats(h, bitrate_sent, bitrate_recv, pkts_sent, pkts_recv, loss_pct, avg_dod) \
G_STMT_START { \
GstStructure *twcc_stats; \
guint stats_bitrate_sent; \
guint stats_bitrate_recv; \
guint stats_packets_sent; \
guint stats_packets_recv; \
gdouble stats_loss_pct; \
GstClockTimeDiff stats_avg_dod; \
twcc_stats = session_harness_get_last_twcc_stats (h); \
fail_unless (gst_structure_get (twcc_stats, \
"bitrate-sent", G_TYPE_UINT, &stats_bitrate_sent, \
"bitrate-recv", G_TYPE_UINT, &stats_bitrate_recv, \
"packets-sent", G_TYPE_UINT, &stats_packets_sent, \
"packets-recv", G_TYPE_UINT, &stats_packets_recv, \
"packet-loss-pct", G_TYPE_DOUBLE, &stats_loss_pct, \
"avg-delta-of-delta", G_TYPE_INT64, &stats_avg_dod, NULL)); \
fail_unless_equals_int (bitrate_sent, stats_bitrate_sent); \
fail_unless_equals_int (bitrate_recv, stats_bitrate_recv); \
fail_unless_equals_int (pkts_sent, stats_packets_sent); \
fail_unless_equals_int (pkts_recv, stats_packets_recv); \
fail_unless_equals_float (loss_pct, stats_loss_pct); \
fail_unless_equals_int64 (avg_dod, stats_avg_dod); \
gst_structure_free (twcc_stats); \
} G_STMT_END
GST_START_TEST (test_twcc_1_bit_status_vector)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{10, 0 * GST_MSECOND, FALSE},
{12, 12 * GST_MSECOND, FALSE},
{14, 14 * GST_MSECOND, FALSE},
{15, 15 * GST_MSECOND, FALSE},
{17, 17 * GST_MSECOND, FALSE},
{20, 20 * GST_MSECOND, FALSE},
{21, 21 * GST_MSECOND, FALSE},
{23, 23 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x0a, /* base sequence number: 10 */
0x00, 0x0e, /* packet status count: 14 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0xab, 0x4d, /* packet chunk: 1 0 1 0 1 0 1 1 | 0 1 0 0 1 1 0 1 */
0x00, /* recv delta: +0:00:00.000000000 */
0x30, /* recv delta: +0:00:00.012000000 */
0x08, /* recv delta: +0:00:00.002000000 */
0x04, /* recv delta: +0:00:00.001000000 */
0x08, /* recv delta: +0:00:00.002000000 */
0x0c, /* recv delta: +0:00:00.003000000 */
0x04, /* recv delta: +0:00:00.001000000 */
0x08, /* recv delta: +0:00:00.002000000 */
0x00, 0x00, /* padding */
};
/* check we get the expected fci */
twcc_verify_packets_to_fci (h0, packets, exp_fci);
/* and check we can parse this back to the original packets */
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_status_vector_split_large_delta)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{1, 1 * 60 * GST_MSECOND, FALSE},
{2, 2 * 60 * GST_MSECOND, FALSE},
{3, 3 * 60 * GST_MSECOND, FALSE},
{4, 4 * 60 * GST_MSECOND, FALSE},
{5, 5 * 60 * GST_MSECOND, FALSE},
{6, 6 * 60 * GST_MSECOND, FALSE},
{7, 7 * 60 * GST_MSECOND, FALSE},
{8, 8 * 60 * GST_MSECOND, FALSE},
{9, 9 * 60 * GST_MSECOND, FALSE},
{10, 10 * 60 * GST_MSECOND, FALSE},
{11, 11 * 60 * GST_MSECOND, FALSE},
{12, 12 * 60 * GST_MSECOND, FALSE},
{13, 13 * 60 * GST_MSECOND, FALSE},
{14, 14 * 60 * GST_MSECOND, FALSE},
{15, 60 * 60 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x0f, /* packet status count: 15 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0x20, 0x0e, /* run-length chunk with small delta for #1 to #14: 0 0 1 0 0 0 0 0 | 0 0 0 0 1 1 1 0 */
0x40, 0x01, /* rung-length with large delta for #15: 0 1 0 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
/* recv deltas: */
0xf0, 0xf0, /* 14 small deltas : +0:00:00.060000000 */
0xf0, 0xf0,
0xf0, 0xf0,
0xf0, 0xf0,
0xf0, 0xf0,
0xf0, 0xf0,
0xf0, 0xf0,
0x2b, 0x20, /* large delta: +0:00:02.760000000 */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_2_bit_status_vector)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{5, 5 * 64 * GST_MSECOND, FALSE},
{7, 7 * 64 * GST_MSECOND, FALSE},
{8, 8 * 64 * GST_MSECOND, FALSE},
{11, 12 * 64 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x05, /* base sequence number: 5 */
0x00, 0x07, /* packet status count: 7 */
0x00, 0x00, 0x05, /* reference time: 5 */
0x00, /* feedback packet count: 0 */
0xd2, 0x82, /* packet chunk: 1 1 0 1 0 0 1 0 | 1 0 0 0 0 0 1 0 */
/* normal, missing, large, large, missing, missing, large */
0x00, /* recv delta: +0:00:00.000000000 */
0x02, 0x00, /* recv delta: +0:00:00.128000000 */
0x01, 0x00, /* recv delta: +0:00:00.064000000 */
0x04, 0x00, /* recv delta: +0:00:00.256000000 */
0x00, 0x00, 0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_2_bit_over_capacity)
{
SessionHarness *h = session_harness_new ();
TWCCPacket packets[] = {
{0, 0 * GST_MSECOND, FALSE},
{6, 250 * 250 + 250 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x00, /* base sequence number: 0 */
0x00, 0x07, /* packet status count: 7 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0xd0, 0x02, /* packet chunk: 1 1 0 1 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x00, /* recv delta: +0:00:00.000000000 */
0x03, 0xe8, /* recv delta: +0:00:00.000000000 */
0x00, 0x00, 0x00, /* padding */
};
twcc_verify_packets_to_fci (h, packets, exp_fci);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_status_vector_split_with_gap)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{0, 0 * GST_MSECOND, FALSE},
{7, (250 * 250) + 250 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x00, /* base sequence number: 0 */
0x00, 0x08, /* packet status count: 8 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0xd0, 0x00, /* packet chunk: 1 1 0 1 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0xe0, 0x00, /* packet chunk: 1 1 1 0 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x00, /* recv delta: +0:00:00.000000000 */
0x03, 0xe8, /* recv delta: +0:00:00.250000000 */
0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_status_vector_split_into_three)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
/* 7 packets with small deltas */
{0, 0 * 250 * GST_USECOND, FALSE},
{1, 1 * 250 * GST_USECOND, FALSE},
{2, 2 * 250 * GST_USECOND, FALSE},
{3, 3 * 250 * GST_USECOND, FALSE},
{4, 4 * 250 * GST_USECOND, FALSE},
{5, 5 * 250 * GST_USECOND, FALSE},
{6, 6 * 250 * GST_USECOND, FALSE},
/* 2 large delta, #8 will present a negative delta */
{7, 7 * 250 * GST_MSECOND, FALSE},
{8, 8 * 250 * GST_USECOND, FALSE},
/* 13 packets with small deltas */
{9, 9 * 250 * GST_USECOND, FALSE},
{10, 10 * 250 * GST_USECOND, FALSE},
{11, 11 * 250 * GST_USECOND, FALSE},
{12, 12 * 250 * GST_USECOND, FALSE},
{13, 13 * 250 * GST_USECOND, FALSE},
{14, 14 * 250 * GST_USECOND, FALSE},
{15, 15 * 250 * GST_USECOND, FALSE},
{16, 16 * 250 * GST_USECOND, FALSE},
{17, 17 * 250 * GST_USECOND, FALSE},
{18, 18 * 250 * GST_USECOND, FALSE},
{19, 19 * 250 * GST_USECOND, FALSE},
{20, 20 * 250 * GST_USECOND, FALSE},
{21, 21 * 250 * GST_USECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x00, /* base sequence number: 0 */
0x00, 0x16, /* packet status count: 22 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0x20, 0x07, /* run-length chunk (small deltas) for #0 to #6: 0 0 1 0 0 0 0 0 | 0 0 0 0 0 1 1 1 */
0x40, 0x02, /* run-length chunk (large deltas) for #7 and #8 0 1 0 0 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x20, 0x0d, /* run-length chunk (small deltas) for #9 and #21 0 1 0 0 0 0 0 0 | 0 0 0 0 1 1 0 1 */
0x00, /* recv delta: +0:00:00.000000000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x1b, 0x52, /* recv delta: +0:00:01.748500000 */
0xe4, 0xb0, /* recv delta: -0:00:01.748000000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x00, 0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_2_bit_full_status_vector)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{1, 1 * 64 * GST_MSECOND, FALSE},
{2, 2 * 64 * GST_MSECOND, FALSE},
{6, 6 * 64 * GST_MSECOND, FALSE},
{7, 7 * 64 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x07, /* packet status count: 7 */
0x00, 0x00, 0x01, /* reference time: 1 */
0x00, /* feedback packet count: 0 */
0xd8, 0x0a, /* packet chunk: 1 1 0 1 1 0 0 0 | 0 0 0 0 1 0 1 0 */
0x00, 0x01, /* recv delta: +0:00:00.064000000 */
0x00, 0x04, /* recv delta: +0:00:00.256000000 */
0x00, 0x01, /* recv delta: +0:00:00.064000000 */
0x00, 0x00, 0x00, 0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_various_gaps)
{
SessionHarness *h = session_harness_new ();
guint16 seq = 1 + __i__;
TWCCPacket packets[] = {
{0, 0 * 250 * GST_USECOND, FALSE},
{seq, seq * 250 * GST_USECOND, TRUE},
};
twcc_verify_packets_to_packets (h, h, packets);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_negative_delta)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{0, 0 * 250 * GST_USECOND, FALSE},
{1, 2 * 250 * GST_USECOND, FALSE},
{2, 1 * 250 * GST_USECOND, FALSE},
{3, 3 * 250 * GST_USECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x00, /* base sequence number: 0 */
0x00, 0x04, /* packet status count: 4 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0xd6, 0x40, /* packet chunk: 1 1 0 1 0 1 1 0 | 0 1 0 0 0 0 0 0 */
0x00, /* recv delta: +0:00:00.000000000 */
0x02, /* recv delta: +0:00:00.000500000 */
0xff, 0xff, /* recv delta: -0:00:00.000250000 */
0x02, /* recv delta: +0:00:00.000500000 */
0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_seqnum_wrap)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{65534, 0 * 250 * GST_USECOND, FALSE},
{65535, 1 * 250 * GST_USECOND, FALSE},
{0, 2 * 250 * GST_USECOND, FALSE},
{1, 3 * 250 * GST_USECOND, TRUE},
};
guint8 exp_fci[] = {
0xff, 0xfe, /* base sequence number: 65534 */
0x00, 0x04, /* packet status count: 4 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0x20, 0x04, /* packet chunk: 0 0 1 0 0 0 0 0 | 0 0 0 0 0 1 0 0 */
0x00, /* recv delta: +0:00:00.000000000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x01, /* recv delta: +0:00:00.000250000 */
0x00, 0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_seqnum_wrap_with_loss)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
TWCCPacket packets[] = {
{65534, 0 * 250 * GST_USECOND, TRUE},
{1, 3 * 250 * GST_USECOND, TRUE},
};
guint8 exp_fci0[] = {
0xff, 0xfe, /* base sequence number: 65534 */
0x00, 0x01, /* packet status count: 1 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0x20, 0x01, /* packet chunk: 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
0x00, /* recv delta: +0:00:00.000000000 */
0x00, /* padding */
};
guint8 exp_fci1[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x01, /* packet status count: 1 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x01, /* feedback packet count: 1 */
0x20, 0x01, /* packet chunk: 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
0x03, /* recv delta: +0:00:00.000750000 */
0x00, /* padding */
};
twcc_push_packets (h, packets);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci1);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_double_packets)
{
SessionHarness *h = session_harness_new ();
TWCCPacket packets0[] = {
{11, 11 * GST_MSECOND, FALSE},
{12, 12 * GST_MSECOND, TRUE},
};
TWCCPacket packets1[] = {
{13, 13 * GST_MSECOND, FALSE},
{14, 14 * GST_MSECOND, FALSE},
{15, 15 * GST_MSECOND, TRUE},
};
guint8 exp_fci0[] = {
0x00, 0x0b, /* base sequence number: 11 */
0x00, 0x02, /* packet status count: 2 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0x20, 0x02, /* packet chunk: 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x2c, 0x04, /* recv deltas */
};
guint8 exp_fci1[] = {
0x00, 0x0d, /* base sequence number: 13 */
0x00, 0x03, /* packet status count: 3 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x01, /* feedback packet count: 1 */
0x20, 0x03, /* packet chunk: 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 1 */
0x34, 0x04, 0x04, /* recv deltas */
0x00, 0x00, 0x00, /* padding */
};
twcc_verify_packets_to_fci (h, packets0, exp_fci0);
twcc_verify_packets_to_fci (h, packets1, exp_fci1);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_huge_seqnum_gap)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{9, 4 * 32 * GST_MSECOND, FALSE},
{10, 5 * 32 * GST_MSECOND, FALSE},
{30011, 6 * 32 * GST_MSECOND, FALSE},
{30012, 7 * 32 * GST_MSECOND, FALSE},
{30013, 8 * 32 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x09, /* base sequence number: 9 */
0x75, 0x35, /* packet status count: 30005 */
0x00, 0x00, 0x02, /* reference time: 2 */
0x00, /* feedback packet count: 0 */
/* packet chunks: */
0xb0, 0x00, /* run-length: 1 bit 2 there, 12 lost: 1 0 1 1 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0x1f, 0xff, /* run-length: 8191 lost: 0 0 0 1 1 1 1 1 | 1 1 1 1 1 1 1 1 */
0x1f, 0xff, /* run-length: 8191 lost: 0 0 0 1 1 1 1 1 | 1 1 1 1 1 1 1 1 */
0x1f, 0xff, /* run-length: 8191 lost: 0 0 0 1 1 1 1 1 | 1 1 1 1 1 1 1 1 */
0x15, 0x27, /* run-length: 5415 lost: 0 0 0 1 0 1 0 1 | 0 0 1 0 0 1 1 1 */
/* 12 + 8191 + 8191 + 8191 + 5415 = 30000 lost packets */
0xb8, 0x00, /* 1 bit 3 there : 1 0 1 1 1 0 0 0 | 0 0 0 0 0 0 0 0 */
0x00, 0x80, 0x80, 0x80, 0x80, /* recv deltas */
0x00, 0x00, 0x00, /* padding */
};
twcc_push_packets (h0, packets);
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_duplicate_seqnums)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
/* A duplicate seqnum can be interpreted as a gap of 65536 packets.
Whatever the cause might be, we will follow the behavior of reordered
packets, and drop it */
TWCCPacket packets[] = {
{1, 4 * 32 * GST_MSECOND, FALSE},
{2, 5 * 32 * GST_MSECOND, FALSE},
{1, 6 * 32 * GST_MSECOND, FALSE},
{3, 7 * 32 * GST_MSECOND, TRUE},
};
guint8 exp_fci[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x03, /* packet status count: 2 */
0x00, 0x00, 0x02, /* reference time: 2 * 64ms */
0x00, /* feedback packet count: 0 */
/* packet chunks: */
0xd6, 0x00, /* 1 1 0 1 0 1 1 0 | 0 0 0 0 0 0 0 0 */
0x00, 0x80, /* recv deltas: +0, +32ms, + 64ms */
0x01, 0x00,
0x00, 0x00, /* padding */
};
twcc_push_packets (h, packets);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_multiple_markers)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
/* for this test, notice how the first recv-delta should relate back to
the reference-time, which is 0 in this case. The packets are incrementing
in timestamps equal to the smallest unit for TWCC (250 microseconds) */
TWCCPacket packets[] = {
{1, 1 * 250 * GST_USECOND, FALSE},
{2, 2 * 250 * GST_USECOND, FALSE},
{3, 3 * 250 * GST_USECOND, TRUE},
{4, 4 * 250 * GST_USECOND, FALSE},
{5, 5 * 250 * GST_USECOND, TRUE},
{6, 6 * 250 * GST_USECOND, FALSE},
{7, 7 * 250 * GST_USECOND, FALSE},
{8, 8 * 250 * GST_USECOND, FALSE},
{9, 9 * 250 * GST_USECOND, TRUE},
};
guint8 exp_fci0[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x03, /* packet status count: 3 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
/* packet chunks: */
0x20, 0x03, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 1 */
0x01, 0x01, 0x01, /* recv deltas, +1, +1, +1 */
0x00, 0x00, 0x00, /* padding */
};
guint8 exp_fci1[] = {
0x00, 0x04, /* base sequence number: 4 */
0x00, 0x02, /* packet status count: 2 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x01, /* feedback packet count: 1 */
/* packet chunks: */
0x20, 0x02, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x04, 0x01, /* recv deltas, +4, +1, +1 */
};
guint8 exp_fci2[] = {
0x00, 0x06, /* base sequence number: 6 */
0x00, 0x04, /* packet status count: 4 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x02, /* feedback packet count: 2 */
/* packet chunks: */
0x20, 0x04, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 1 0 0 */
0x06, 0x01, 0x01, 0x01, /* recv deltas, +6, +1, +1, +1 */
0x00, 0x00,
};
twcc_push_packets (h, packets);
/* we should get 1 SR/RR, and then 3x TWCC packets */
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci1);
gst_buffer_unref (buf);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci2);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_no_marker_and_gaps)
{
SessionHarness *h = session_harness_new ();
guint i;
g_object_set (h->internal_session, "probation", 1, NULL);
/* Push packets with gaps and no marker bit. This should not prevent
the feedback packets from being sent at all. */
for (i = 0; i < 100; i += 10) {
TWCCPacket packets[] = { {i, i * 250 * GST_USECOND, FALSE}
};
twcc_push_packets (h, packets);
}
/* verify we did receive some feedback for these packets */
gst_buffer_unref (session_harness_produce_twcc (h));
session_harness_free (h);
}
GST_END_TEST;
static GstBuffer *
generate_twcc_feedback_rtcp (guint8 * fci_data, guint16 fci_length)
{
GstRTCPPacket packet;
GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
GstBuffer *buffer = gst_rtcp_buffer_new (1000);
guint8 *fci;
fail_unless (gst_rtcp_buffer_map (buffer, GST_MAP_READWRITE, &rtcp));
fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_RTPFB,
&packet));
gst_rtcp_packet_fb_set_type (&packet, GST_RTCP_RTPFB_TYPE_TWCC);
gst_rtcp_packet_fb_set_fci_length (&packet, fci_length);
fci = gst_rtcp_packet_fb_get_fci (&packet);
memcpy (fci, fci_data, fci_length);
gst_rtcp_packet_fb_set_sender_ssrc (&packet, TEST_BUF_SSRC);
gst_rtcp_packet_fb_set_media_ssrc (&packet, 0);
gst_rtcp_buffer_unmap (&rtcp);
return buffer;
}
GST_START_TEST (test_twcc_bad_rtcp)
{
SessionHarness *h = session_harness_new ();
guint i;
GstBuffer *buf;
GstEvent *event;
GValueArray *packets_array;
guint8 fci[] = {
0xff, 0xff, /* base sequence number: max */
0xff, 0xff, /* packet status count: max */
0xff, 0xff, 0xff, /* reference time: max */
0xff, /* feedback packet count: max */
0x3f, 0xff, /* packet chunk: run-length, max */
0x00, /* only 1 recv-delta */
};
buf = generate_twcc_feedback_rtcp (fci, sizeof (fci));
session_harness_recv_rtcp (h, buf);
/* two reconfigure events */
for (i = 0; i < 2; i++)
gst_event_unref (gst_harness_pull_upstream_event (h->send_rtp_h));
event = gst_harness_pull_upstream_event (h->send_rtp_h);
packets_array =
g_value_get_boxed (gst_structure_get_value (gst_event_get_structure
(event), "packets"));
/* this ends up with 0 packets, due to completely invalid data */
fail_unless_equals_int (packets_array->n_values, 0);
gst_event_unref (event);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_delta_ts_rounding)
{
SessionHarness *h = session_harness_new ();
guint i, j = 0;
GstEvent *event;
GstBuffer *buf;
GValueArray *packets_array;
TWCCPacket packets[] = {
{2002, 9 * GST_SECOND + 366458177, FALSE}
,
{2003, 9 * GST_SECOND + 366497068, FALSE}
,
{2017, 9 * GST_SECOND + 366929482, FALSE}
,
{2019, 9 * GST_SECOND + 391595309, FALSE}
,
{2020, 9 * GST_SECOND + 426883507, FALSE}
,
{2025, 9 * GST_SECOND + 427021638, TRUE}
,
};
TWCCPacket exp_packets[] = {
{2002, 9 * GST_SECOND + 366250000, FALSE}
,
{2003, 9 * GST_SECOND + 366250000, FALSE}
,
{2017, 9 * GST_SECOND + 366750000, FALSE}
,
{2019, 9 * GST_SECOND + 391500000, FALSE}
,
{2020, 9 * GST_SECOND + 426750000, FALSE}
,
{2025, 9 * GST_SECOND + 427000000, TRUE}
,
};
guint8 exp_fci[] = {
0x07, 0xd2, /* base sequence number: 2002 */
0x00, 0x18, /* packet status count: 24 */
0x00, 0x00, 0x92, /* reference time: 0:00:09.344000000 */
0x00, /* feedback packet count: 0 */
0xb0, 0x00, /* packet chunk: 1 0 1 1 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0x96, 0x10, /* packet chunk: 1 0 0 1 0 1 1 0 | 0 0 0 1 0 0 0 0 */
0x59, /* recv delta: 0:00:00.022250000 abs: 0:00:09.366250000 */
0x00, /* recv delta: 0:00:00.000000000 abs: 0:00:09.366250000 */
0x02, /* recv delta: 0:00:00.000500000 abs: 0:00:09.366750000 */
0x63, /* recv delta: 0:00:00.024750000 abs: 0:00:09.391500000 */
0x8d, /* recv delta: 0:00:00.035250000 abs: 0:00:09.426750000 */
0x01, /* recv delta: 0:00:00.000250000 abs: 0:00:09.427000000 */
0x00, 0x00, /* padding */
};
twcc_push_packets (h, packets);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci);
session_harness_recv_rtcp (h, buf);
for (i = 0; i < 2; i++)
gst_event_unref (gst_harness_pull_upstream_event (h->send_rtp_h));
event = gst_harness_pull_upstream_event (h->send_rtp_h);
packets_array =
g_value_get_boxed (gst_structure_get_value (gst_event_get_structure
(event), "packets"));
for (i = 0; i < packets_array->n_values; i++) {
TWCCPacket *twcc_pkt;
const GstStructure *pkt_s =
gst_value_get_structure (g_value_array_get_nth (packets_array, i));
GstClockTime ts;
guint seqnum;
gboolean lost;
fail_unless (gst_structure_get_boolean (pkt_s, "lost", &lost));
if (lost)
continue;
twcc_pkt = &exp_packets[j++];
fail_unless (gst_structure_get_clock_time (pkt_s, "remote-ts", &ts));
fail_unless (gst_structure_get_uint (pkt_s, "seqnum", &seqnum));
fail_unless_equals_int (twcc_pkt->seqnum, seqnum);
fail_unless_equals_clocktime (twcc_pkt->timestamp, ts);
}
gst_event_unref (event);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_double_gap)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
{1202, 5 * GST_SECOND + 717000000, FALSE}
,
{1215, 5 * GST_SECOND + 760250000, FALSE}
,
{1221, 5 * GST_SECOND + 775500000, TRUE}
,
};
guint8 exp_fci[] = {
0x04, 0xb2, /* base sequence number: 1202 */
0x00, 0x14, /* packet status count: 20 */
0x00, 0x00, 0x59, /* reference time: 0:00:05.696000000 */
0x00, /* feedback packet count: 0 */
0xa0, 0x01, /* packet chunk: 1 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
0x81, 0x00, /* packet chunk: 1 0 0 0 0 0 0 1 | 0 0 0 0 0 0 0 0 */
0x54, /* recv delta: +0:00:00.021000000 */
0xad, /* recv delta: +0:00:00.043250000 */
0x3d, /* recv delta: +0:00:00.015250000 */
0x00, /* padding */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_recv_packets_reordered)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
/* a reordered seqence, with marker-bits for #3 and #4 */
TWCCPacket packets[] = {
{1, 1 * 250 * GST_USECOND, FALSE}
,
{3, 2 * 250 * GST_USECOND, TRUE}
,
{2, 3 * 250 * GST_USECOND, FALSE}
,
{4, 4 * 250 * GST_USECOND, TRUE}
,
};
/* first we expect #2 to be reported lost */
guint8 exp_fci0[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x03, /* packet status count: 3 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
/* packet chunks: */
0xa8, 0x00, /* 1 0 1 0 1 0 0 0 | 0 0 0 0 0 0 0 0 */
0x01, 0x01, /* recv deltas, +1, +1 */
};
/* and then when 2 actually arrives, it is already reported lost,
so we will not re-report it, but drop it */
guint8 exp_fci1[] = {
0x00, 0x04, /* base sequence number: 4 */
0x00, 0x01, /* packet status count: 1 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x01, /* feedback packet count: 1 */
/* packet chunks: */
0x20, 0x01, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
0x04, /* recv deltas, +4 */
0x00, /* padding */
};
twcc_push_packets (h, packets);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci1);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_recv_late_packet_fb_pkt_count_wrap)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
guint i;
guint8 exp_fci0[] = {
0x01, 0x00, /* base sequence number: 256 */
0x00, 0x01, /* packet status count: 1 */
0x00, 0x00, 0x01, /* reference time: 1 */
0x00, /* feedback packet count: 00 */
/* packet chunks: */
0x20, 0x01, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
0x00, /* 0 recv-delta */
0x00, /* padding */
};
guint8 exp_fci1[] = {
0x01, 0x01, /* base sequence number: 257 */
0x00, 0x01, /* packet status count: 1 */
0x00, 0x00, 0x01, /* reference time: 1 */
0x01, /* feedback packet count: 1 */
/* packet chunks: */
0x20, 0x01, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 1 */
0x01, /* 1 recv-delta */
0x00, /* padding */
};
session_harness_set_twcc_recv_ext_id ((h), TEST_TWCC_EXT_ID);
/* Push packets to get the feedback packet count wrap limit */
for (i = 0; i < 255; i++) {
GstClockTime ts = i * 250 * GST_USECOND;
gst_test_clock_set_time (h->testclock, ts);
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp ((h),
generate_twcc_recv_buffer (i, ts, TRUE)));
}
/* push pkt #256 to jump ahead and force the overflow */
gst_test_clock_set_time (h->testclock, 256 * 250 * GST_USECOND);
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp ((h),
generate_twcc_recv_buffer (256, 256 * 250 * GST_USECOND, TRUE)));
/* pkt #255 is late and should be dropped */
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp ((h),
generate_twcc_recv_buffer (255, 255 * 250 * GST_USECOND, TRUE)));
/* push pkt #257 to verify fci is correct */
gst_test_clock_set_time (h->testclock, 257 * 250 * GST_USECOND);
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp ((h),
generate_twcc_recv_buffer (257, 257 * 250 * GST_USECOND, TRUE)));
/* ignore the twcc for the first 255 packets */
for (i = 0; i < 255; i++)
gst_buffer_unref (session_harness_produce_twcc (h));
/* we expect a fci for pkt #256 */
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
/* and one fci for pkt #257 */
buf = session_harness_produce_twcc (h);
twcc_verify_fci (buf, exp_fci1);
gst_buffer_unref (buf);
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_recv_rtcp_reordered)
{
SessionHarness *send_h = session_harness_new ();
SessionHarness *recv_h = session_harness_new ();
GstBuffer *buf[4];
GstEvent *event;
guint i;
/* three frames, two packets each */
TWCCPacket packets[] = {
{1, 1 * GST_SECOND, FALSE}
,
{2, 2 * GST_SECOND, TRUE}
,
{3, 3 * GST_SECOND, FALSE}
,
{4, 4 * GST_SECOND, TRUE}
,
{5, 5 * GST_SECOND, FALSE}
,
{6, 6 * GST_SECOND, TRUE}
,
{7, 7 * GST_SECOND, FALSE}
,
{8, 8 * GST_SECOND, TRUE}
,
};
/*
TWCCPacket expected_packets0[] = {
{1, 1 * 250 * GST_USECOND, FALSE},
{2, 2 * 250 * GST_USECOND, TRUE},
};
*/
twcc_push_packets (recv_h, packets);
buf[0] = session_harness_produce_twcc (recv_h);
buf[1] = session_harness_produce_twcc (recv_h);
buf[2] = session_harness_produce_twcc (recv_h);
buf[3] = session_harness_produce_twcc (recv_h);
/* reorder the twcc-feedback */
session_harness_recv_rtcp (send_h, buf[0]);
session_harness_recv_rtcp (send_h, buf[2]);
session_harness_recv_rtcp (send_h, buf[1]);
session_harness_recv_rtcp (send_h, buf[3]);
for (i = 0; i < 2; i++)
gst_event_unref (gst_harness_pull_upstream_event (send_h->send_rtp_h));
event = gst_harness_pull_upstream_event (send_h->send_rtp_h);
twcc_verify_packets_to_event (&packets[0 * 2], event);
event = gst_harness_pull_upstream_event (send_h->send_rtp_h);
twcc_verify_packets_to_event (&packets[2 * 2], event);
event = gst_harness_pull_upstream_event (send_h->send_rtp_h);
twcc_verify_packets_to_event (&packets[1 * 2], event);
event = gst_harness_pull_upstream_event (send_h->send_rtp_h);
twcc_verify_packets_to_event (&packets[3 * 2], event);
session_harness_free (send_h);
session_harness_free (recv_h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_no_exthdr_in_buffer)
{
SessionHarness *h = session_harness_new ();
session_harness_set_twcc_recv_ext_id (h, TEST_TWCC_EXT_ID);
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_test_buffer (0, 1234)));
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_send_and_recv)
{
SessionHarness *h_send = session_harness_new ();
SessionHarness *h_recv = session_harness_new ();
guint frame;
const guint num_frames = 2;
const guint num_slices = 15;
/* enable twcc */
session_harness_set_twcc_recv_ext_id (h_recv, TEST_TWCC_EXT_ID);
session_harness_set_twcc_send_ext_id (h_send, TEST_TWCC_EXT_ID);
for (frame = 0; frame < num_frames; frame++) {
GstBuffer *buf;
guint slice;
for (slice = 0; slice < num_slices; slice++) {
GstFlowReturn res;
guint seq = frame * num_slices + slice;
/* from payloder to rtpbin */
buf = generate_twcc_send_buffer (seq, slice == num_slices - 1);
res = session_harness_send_rtp (h_send, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
session_harness_advance_and_crank (h_send, TEST_BUF_DURATION);
/* get the buffer ready for the network */
buf = session_harness_pull_send_rtp (h_send);
/* buffer arrives at the receiver */
res = session_harness_recv_rtp (h_recv, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
/* receiver sends a TWCC packet to the sender */
buf = session_harness_produce_twcc (h_recv);
/* sender receives the TWCC packet */
session_harness_recv_rtcp (h_send, buf);
if (frame > 0)
twcc_verify_stats (h_send, TEST_BUF_BPS, TEST_BUF_BPS, num_slices,
num_slices, 0.0f, 0);
}
session_harness_free (h_send);
session_harness_free (h_recv);
}
GST_END_TEST;
GST_START_TEST (test_twcc_multiple_payloads_below_window)
{
SessionHarness *h_send = session_harness_new ();
SessionHarness *h_recv = session_harness_new ();
guint i;
GstBuffer *buffers[] = {
generate_twcc_send_buffer_full (0, FALSE, 0xabc, 98),
generate_twcc_send_buffer_full (0, FALSE, 0xdef, 111),
generate_twcc_send_buffer_full (1, FALSE, 0xdef, 111),
generate_twcc_send_buffer_full (2, FALSE, 0xdef, 111),
generate_twcc_send_buffer_full (1, TRUE, 0xabc, 98),
};
/* enable twcc */
session_harness_set_twcc_recv_ext_id (h_recv, TEST_TWCC_EXT_ID);
session_harness_set_twcc_send_ext_id (h_send, TEST_TWCC_EXT_ID);
for (i = 0; i < G_N_ELEMENTS (buffers); i++) {
GstBuffer *buf = buffers[i];
GstFlowReturn res;
/* from payloder to rtpbin */
res = session_harness_send_rtp (h_send, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
buf = session_harness_pull_send_rtp (h_send);
session_harness_advance_and_crank (h_send, TEST_BUF_DURATION);
/* buffer arrives at the receiver */
res = session_harness_recv_rtp (h_recv, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
/* sender receives the TWCC packet from the receiver */
session_harness_recv_rtcp (h_send, session_harness_produce_twcc (h_recv));
twcc_verify_stats (h_send, 0, 0, 5, 5, 0.0f, GST_CLOCK_STIME_NONE);
session_harness_free (h_send);
session_harness_free (h_recv);
}
GST_END_TEST;
typedef struct
{
GstClockTime interval;
guint num_packets;
GstClockTime ts_delta;
guint num_feedback;
} TWCCFeedbackIntervalCtx;
static TWCCFeedbackIntervalCtx test_twcc_feedback_interval_ctx[] = {
{50 * GST_MSECOND, 21, 10 * GST_MSECOND, 4},
{50 * GST_MSECOND, 16, 7 * GST_MSECOND, 2},
{50 * GST_MSECOND, 16, 66 * GST_MSECOND, 15},
{50 * GST_MSECOND, 15, 33 * GST_MSECOND, 9},
};
GST_START_TEST (test_twcc_feedback_interval)
{
SessionHarness *h = session_harness_new ();
GstBuffer *buf;
TWCCFeedbackIntervalCtx *ctx = &test_twcc_feedback_interval_ctx[__i__];
session_harness_set_twcc_recv_ext_id (h, TEST_TWCC_EXT_ID);
g_object_set (h->internal_session, "twcc-feedback-interval", ctx->interval,
NULL);
for (guint i = 0; i < ctx->num_packets; i++) {
GstClockTime ts = i * ctx->ts_delta;
gst_test_clock_set_time ((h->testclock), ts);
fail_unless_equals_int (GST_FLOW_OK,
session_harness_recv_rtp (h, generate_twcc_recv_buffer (i, ts, FALSE)));
}
for (guint i = 0; i < ctx->num_feedback; i++) {
buf = session_harness_produce_twcc (h);
gst_buffer_unref (buf);
}
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_feedback_count_wrap)
{
SessionHarness *h = session_harness_new ();
guint i;
GstBuffer *buf;
GstEvent *event;
GValueArray *packets_array;
guint8 fci1[] = {
0x05, 0xfd, /* base sequence number: 1533 */
0x00, 0x00, /* packet status count: 0 */
0x00, 0x00, 0x00, /* reference time: 0 */
0xff, /* feedback packet count: 255 */
0x00, 0x00, /* packet chunk: run-length, 0 */
0x00, /* 0 recv-delta */
};
guint8 fci2[] = {
0x05, 0xfe, /* base sequence number: 1534 */
0x00, 0x00, /* packet status count: 0 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x01, /* feedback packet count: 1 */
0x00, 0x00, /* packet chunk: run-length, 0 */
0x00, /* 0 recv-delta */
};
buf = generate_twcc_feedback_rtcp (fci1, sizeof (fci1));
session_harness_recv_rtcp (h, buf);
buf = generate_twcc_feedback_rtcp (fci2, sizeof (fci2));
session_harness_recv_rtcp (h, buf);
/* two reconfigure events */
for (i = 0; i < 2; i++)
gst_event_unref (gst_harness_pull_upstream_event (h->send_rtp_h));
for (i = 0; i < 2; i++) {
event = gst_harness_pull_upstream_event (h->send_rtp_h);
packets_array =
g_value_get_boxed (gst_structure_get_value (gst_event_get_structure
(event), "packets"));
/* we expect zero packets due to feedback packet count jump ahead */
fail_unless_equals_int (packets_array->n_values, 0);
gst_event_unref (event);
}
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_feedback_old_seqnum)
{
SessionHarness *h = session_harness_new ();
guint i;
GstBuffer *buf;
GstEvent *event;
GValueArray *packets_array;
guint8 fci1[] = {
0x05, 0xfd, /* base sequence number: 1533 */
0x00, 0x00, /* packet status count: 0 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 255 */
0x00, 0x00, /* packet chunk: run-length, 0 */
0x00, /* 0 recv-delta */
};
guint8 fci2[] = {
0x05, 0xdc, /* base sequence number: 1500 */
0x00, 0x00, /* packet status count: 0 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x01, /* feedback packet count: 1 */
0x00, 0x00, /* packet chunk: run-length, 0 */
0x00, /* 0 recv-delta */
};
buf = generate_twcc_feedback_rtcp (fci1, sizeof (fci1));
session_harness_recv_rtcp (h, buf);
buf = generate_twcc_feedback_rtcp (fci2, sizeof (fci2));
session_harness_recv_rtcp (h, buf);
/* two reconfigure events */
for (i = 0; i < 2; i++)
gst_event_unref (gst_harness_pull_upstream_event (h->send_rtp_h));
for (i = 0; i < 2; i++) {
event = gst_harness_pull_upstream_event (h->send_rtp_h);
packets_array =
g_value_get_boxed (gst_structure_get_value (gst_event_get_structure
(event), "packets"));
/* we expect zero packets due to old sequence number */
fail_unless_equals_int (packets_array->n_values, 0);
gst_event_unref (event);
}
session_harness_free (h);
}
GST_END_TEST;
GST_START_TEST (test_twcc_run_length_max)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
/* *INDENT-OFF* */
{0, 1000 * GST_USECOND, FALSE},
{8205, 2000 * GST_USECOND, TRUE},
/* *INDENT-ON* */
};
guint8 exp_fci[] = {
0x00, 0x00, /* base sequence number: 0 */
0x20, 0x0e, /* packet status count: 8206 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0xa0, 0x00, /* 1bit status for #0 received: 1 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0x1f, 0xff, /* run-length with max length is reported as not received: 0 0 0 1 1 1 1 1 | 1 1 1 1 1 1 1 1 */
0xa0, 0x00, /* 1bit status for #8205 received: 1 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0x04, /* recv delta: +0:00:00.001000000 */
0x04, /* recv delta: +0:00:00.001000000 */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
GST_START_TEST (test_twcc_run_length_min)
{
SessionHarness *h0 = session_harness_new ();
SessionHarness *h1 = session_harness_new ();
TWCCPacket packets[] = {
/* *INDENT-OFF* */
{0, 1000 * GST_USECOND, FALSE},
{29, 2000 * GST_USECOND, TRUE},
/* *INDENT-ON* */
};
guint8 exp_fci[] = {
0x00, 0x00, /* base sequence number: 0 */
0x00, 0x1e, /* packet status count: 30 */
0x00, 0x00, 0x00, /* reference time: 0 */
0x00, /* feedback packet count: 0 */
0xa0, 0x00, /* 1bit status for #0 received: 1 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0x00, 0x0f, /* run-length with length of 15, all not received: 0 0 0 0 0 0 0 0 | 0 0 0 0 1 1 1 1 */
0xa0, 0x00, /* 1bit status for #29 received: 1 0 1 0 0 0 0 0 | 0 0 0 0 0 0 0 0 */
0x04, /* recv delta: +0:00:00.001000000 */
0x04, /* recv delta: +0:00:00.001000000 */
};
twcc_verify_packets_to_fci (h0, packets, exp_fci);
twcc_verify_packets_to_packets (h1, h1, packets);
session_harness_free (h0);
session_harness_free (h1);
}
GST_END_TEST;
static Suite *
rtpsession_suite (void)
{
Suite *s = suite_create ("rtpsession");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_multiple_ssrc_rr);
tcase_add_test (tc_chain, test_multiple_senders_roundrobin_rbs);
tcase_add_test (tc_chain, test_no_rbs_for_internal_senders);
tcase_add_test (tc_chain, test_internal_sources_timeout);
tcase_add_test (tc_chain, test_receive_rtcp_app_packet);
tcase_add_test (tc_chain, test_dont_lock_on_stats);
tcase_add_test (tc_chain, test_ignore_suspicious_bye);
tcase_add_test (tc_chain, test_ssrc_collision_when_sending);
tcase_add_test (tc_chain, test_ssrc_collision_when_sending_loopback);
tcase_add_test (tc_chain, test_ssrc_collision_when_receiving);
tcase_add_test (tc_chain, test_ssrc_collision_third_party);
tcase_add_test (tc_chain, test_ssrc_collision_third_party_favor_new);
tcase_add_test (tc_chain,
test_ssrc_collision_never_send_on_non_internal_source);
tcase_add_test (tc_chain, test_request_fir);
tcase_add_test (tc_chain, test_request_pli);
tcase_add_test (tc_chain, test_request_fir_after_pli_in_caps);
tcase_add_test (tc_chain, test_request_nack);
tcase_add_test (tc_chain, test_request_nack_surplus);
tcase_add_test (tc_chain, test_request_nack_packing);
tcase_add_test (tc_chain, test_illegal_rtcp_fb_packet);
tcase_add_test (tc_chain, test_feedback_rtcp_race);
tcase_add_test (tc_chain, test_receive_regular_pli);
tcase_add_test (tc_chain, test_receive_pli_no_sender_ssrc);
tcase_add_test (tc_chain, test_dont_send_rtcp_while_idle);
tcase_add_test (tc_chain, test_send_rtcp_when_signalled);
tcase_add_test (tc_chain, test_change_sent_sdes);
tcase_add_test (tc_chain, test_disable_sr_timestamp);
tcase_add_test (tc_chain, test_on_sending_nacks);
tcase_add_test (tc_chain, test_disable_probation);
tcase_add_test (tc_chain, test_request_late_nack);
tcase_add_test (tc_chain, test_clear_pt_map_stress);
tcase_add_test (tc_chain, test_packet_rate);
tcase_add_test (tc_chain, test_stepped_packet_rate);
/* twcc */
tcase_add_loop_test (tc_chain, test_twcc_header_and_run_length,
0, G_N_ELEMENTS (twcc_header_and_run_length_test_data));
tcase_add_test (tc_chain, test_twcc_run_length_max);
tcase_add_test (tc_chain, test_twcc_run_length_min);
tcase_add_test (tc_chain, test_twcc_1_bit_status_vector);
tcase_add_test (tc_chain, test_twcc_2_bit_status_vector);
tcase_add_test (tc_chain, test_twcc_2_bit_over_capacity);
tcase_add_test (tc_chain, test_twcc_2_bit_full_status_vector);
tcase_add_test (tc_chain, test_twcc_status_vector_split_large_delta);
tcase_add_test (tc_chain, test_twcc_status_vector_split_with_gap);
tcase_add_test (tc_chain, test_twcc_status_vector_split_into_three);
tcase_add_loop_test (tc_chain, test_twcc_various_gaps, 0, 50);
tcase_add_test (tc_chain, test_twcc_negative_delta);
tcase_add_test (tc_chain, test_twcc_seqnum_wrap);
tcase_add_test (tc_chain, test_twcc_seqnum_wrap_with_loss);
tcase_add_test (tc_chain, test_twcc_huge_seqnum_gap);
tcase_add_test (tc_chain, test_twcc_double_packets);
tcase_add_test (tc_chain, test_twcc_duplicate_seqnums);
tcase_add_test (tc_chain, test_twcc_multiple_markers);
tcase_add_test (tc_chain, test_twcc_no_marker_and_gaps);
tcase_add_test (tc_chain, test_twcc_bad_rtcp);
tcase_add_test (tc_chain, test_twcc_delta_ts_rounding);
tcase_add_test (tc_chain, test_twcc_double_gap);
tcase_add_test (tc_chain, test_twcc_recv_packets_reordered);
tcase_add_test (tc_chain, test_twcc_recv_late_packet_fb_pkt_count_wrap);
tcase_add_test (tc_chain, test_twcc_recv_rtcp_reordered);
tcase_add_test (tc_chain, test_twcc_no_exthdr_in_buffer);
tcase_add_test (tc_chain, test_twcc_send_and_recv);
tcase_add_test (tc_chain, test_twcc_multiple_payloads_below_window);
tcase_add_loop_test (tc_chain, test_twcc_feedback_interval, 0,
G_N_ELEMENTS (test_twcc_feedback_interval_ctx));
tcase_add_test (tc_chain, test_twcc_feedback_count_wrap);
tcase_add_test (tc_chain, test_twcc_feedback_old_seqnum);
return s;
}
GST_CHECK_MAIN (rtpsession);
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