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gstreamer/tests/check/elements/rtpsession.c

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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 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, TEST_BUF_PT);
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, 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_TWCC_EXT_ID, seqnum);
}
static GstBuffer *
generate_twcc_send_buffer (guint seqnum, gboolean marker_bit)
{
return generate_test_buffer_full (seqnum * TEST_BUF_DURATION,
seqnum, seqnum * TEST_RTP_TS_DURATION, TEST_BUF_SSRC, marker_bit,
TEST_TWCC_EXT_ID, seqnum);
}
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);
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);
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 = gst_caps_new_simple ("application/x-rtp",
"ssrc", G_TYPE_UINT, 0x01BADBAD, 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);
}
/* 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);
fail_unless_equals_int (internal_ssrc, ssrc);
fail_unless_equals_int (0x01BADBAD, ssrc);
j |= 0x1;
} 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 (0x3, 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 */
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 == 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 (0x3, j); /* verify we got both 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;
/* 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));
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;
/* 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));
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_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, 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_pull_twcc_rtcp (SessionHarness * h)
{
GstBuffer *ret = NULL;
while (ret == NULL) {
GstBuffer *buf = session_harness_pull_rtcp (h);
if (GST_RTCP_RTPFB_TYPE_TWCC == _gst_buffer_get_rtcp_fbtype (buf)) {
ret = buf;
} else {
gst_buffer_unref (buf);
}
}
return ret;
}
typedef struct
{
guint16 base_seqnum;
guint16 num_packets;
GstClockTime base_time;
GstClockTime duration;
} TWCCTestData;
static TWCCTestData twcc_header_and_run_lenght_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_lenght_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);
buf = generate_twcc_recv_buffer (i + td->base_seqnum,
td->base_time + i * td->duration, last_packet);
res = session_harness_recv_rtp (h, buf);
fail_unless_equals_int (GST_FLOW_OK, res);
}
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_twcc_rtcp (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 = *((guint16 *) & fci_data[8]);
run_length = run_length & ~0xE0; /* mask out the 3 last bits */
fail_unless_equals_int (td->num_packets, GST_READ_UINT16_BE (&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_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]; \
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); \
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); \
session_harness_produce_rtcp ((h), 1); \
buf = session_harness_pull_twcc_rtcp ((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_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_produce_rtcp ((recv_h), 1); \
session_harness_recv_rtcp ((send_h), \
session_harness_pull_twcc_rtcp ((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
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_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_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_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: 14 */
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 *h = session_harness_new ();
GstBuffer *buf;
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_fci0[] = {
0x00, 0x09, /* base sequence number: 9 */
0x00, 0x02, /* packet status count: 2 */
0x00, 0x00, 0x02, /* reference time: 2 * 64ms */
0x00, /* feedback packet count: 0 */
/* packet chunks: */
0x20, 0x02, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x00, 0x80, /* recv deltas, +0, +32ms */
};
guint8 exp_fci1[] = {
0x75, 0x3b, /* base sequence number: 300011 */
0x00, 0x03, /* packet status count: 3 */
0x00, 0x00, 0x03, /* reference time: 3 * 64ms */
0x01, /* feedback packet count: 1 */
/* packet chunks: */
0x20, 0x03, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 1 */
0x00, 0x80, 0x80, /* recv deltas, +4, +32ms, +32ms */
0x00, 0x00, 0x00, /* padding */
};
/* The sequence-number does a huge leap. Instead of encoding this as
a massive run-lenght sequence, like so */
#if 0
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, /* 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 */
};
#endif
/* ...just send two feedback-packets, with
the second one starting from the new sequence-number. */
twcc_push_packets (h, packets);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci1);
gst_buffer_unref (buf);
session_harness_free (h);
}
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},
{2, 6 * 32 * GST_MSECOND, FALSE},
{3, 7 * 32 * GST_MSECOND, TRUE},
};
guint8 exp_fci0[] = {
0x00, 0x01, /* base sequence number: 1 */
0x00, 0x02, /* packet status count: 2 */
0x00, 0x00, 0x02, /* reference time: 2 * 64ms */
0x00, /* feedback packet count: 0 */
/* packet chunks: */
0x20, 0x02, /* 0 0 1 0 0 0 0 0 | 0 0 0 0 0 0 1 0 */
0x00, 0x80, /* recv deltas: +0, +32ms */
};
guint8 exp_fci1[] = {
0x00, 0x03, /* base sequence number: 3 */
0x00, 0x01, /* packet status count: 1 */
0x00, 0x00, 0x03, /* reference time: 3 * 64ms */
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 */
0x80, /* recv deltas: +32ms */
0x00, /* padding */
};
twcc_push_packets (h, packets);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci1);
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 */
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci1);
gst_buffer_unref (buf);
buf = session_harness_pull_twcc_rtcp (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 < 80; i += 10) {
TWCCPacket packets[] = { {i, i * 250 * GST_USECOND, FALSE}
};
twcc_push_packets (h, packets);
}
/* verify we did receive some feedback for these packets */
session_harness_produce_rtcp (h, 1);
for (i = 0; i < 2; i++) {
gst_buffer_unref (session_harness_pull_twcc_rtcp (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);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_twcc_rtcp (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);
session_harness_produce_rtcp (h, 1);
buf = session_harness_pull_twcc_rtcp (h);
twcc_verify_fci (buf, exp_fci0);
gst_buffer_unref (buf);
buf = session_harness_pull_twcc_rtcp (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);
session_harness_produce_rtcp (recv_h, 1);
buf[0] = session_harness_pull_twcc_rtcp (recv_h);
buf[1] = session_harness_pull_twcc_rtcp (recv_h);
buf[2] = session_harness_pull_twcc_rtcp (recv_h);
buf[3] = session_harness_pull_twcc_rtcp (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;
for (guint 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);
/* 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 */
session_harness_produce_rtcp (h_recv, 1);
buf = session_harness_pull_twcc_rtcp (h_recv);
/* sender receives the TWCC packet */
session_harness_recv_rtcp (h_send, buf);
if (frame > 0) {
GstStructure *twcc_stats;
guint bitrate_sent;
guint bitrate_recv;
guint packets_sent;
guint packets_recv;
gdouble packet_loss_pct;
GstClockTimeDiff avg_delta_of_delta;
twcc_stats = session_harness_get_last_twcc_stats (h_send);
fail_unless (gst_structure_get (twcc_stats,
"bitrate-sent", G_TYPE_UINT, &bitrate_sent,
"bitrate-recv", G_TYPE_UINT, &bitrate_recv,
"packets-sent", G_TYPE_UINT, &packets_sent,
"packets-recv", G_TYPE_UINT, &packets_recv,
"packet-loss-pct", G_TYPE_DOUBLE, &packet_loss_pct,
"avg-delta-of-delta", G_TYPE_INT64, &avg_delta_of_delta, NULL));
fail_unless_equals_int (TEST_BUF_BPS, bitrate_sent);
fail_unless_equals_int (TEST_BUF_BPS, bitrate_recv);
fail_unless_equals_int (num_slices, packets_sent);
fail_unless_equals_int (num_slices, packets_recv);
fail_unless_equals_float (0.0f, packet_loss_pct);
fail_unless_equals_int64 (0, avg_delta_of_delta);
gst_structure_free (twcc_stats);
}
}
session_harness_free (h_send);
session_harness_free (h_recv);
}
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_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_lenght_test_data));
tcase_add_test (tc_chain, test_twcc_1_bit_status_vector);
tcase_add_test (tc_chain, test_twcc_2_bit_status_vector);
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_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_rtcp_reordered);
tcase_add_test (tc_chain, test_twcc_no_exthdr_in_buffer);
tcase_add_test (tc_chain, test_twcc_send_and_recv);
return s;
}
GST_CHECK_MAIN (rtpsession);
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