gstreamer/tests/check/elements/rtpjitterbuffer.c

855 lines
28 KiB
C

/* GStreamer
*
* Copyright (C) 2009 Nokia Corporation and its subsidary(-ies)
* contact: <stefan.kost@nokia.com>
* Copyright (C) 2012 Cisco Systems, Inc
* Authors: Kelley Rogers <kelro@cisco.com>
* Havard Graff <hgraff@cisco.com>
*
* 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.
*/
#include <gst/check/gstcheck.h>
#include <gst/check/gsttestclock.h>
/* For ease of programming we use globals to keep refs for our floating
* src and sink pads we create; otherwise we always have to do get_pad,
* get_peer, and then remove references in every test function */
static GstPad *mysrcpad, *mysinkpad;
/* we also have a list of src buffers */
static GList *inbuffers = NULL;
static gint num_dropped = 0;
#define RTP_CAPS_STRING \
"application/x-rtp, " \
"media = (string)audio, " \
"payload = (int) 0, " \
"clock-rate = (int) 8000, " \
"encoding-name = (string)PCMU"
#define RTP_FRAME_SIZE 20
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp")
);
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"clock-rate = (int) [ 1, 2147483647 ]")
);
static void
buffer_dropped (gpointer data, GstMiniObject * obj)
{
GST_DEBUG ("dropping buffer %p", obj);
num_dropped++;
}
static GstElement *
setup_jitterbuffer (gint num_buffers)
{
GstElement *jitterbuffer;
GstClock *clock;
GstBuffer *buffer;
GstCaps *caps;
/* a 20 sample audio block (2,5 ms) generated with
* gst-launch audiotestsrc wave=silence blocksize=40 num-buffers=3 !
* "audio/x-raw,channels=1,rate=8000" ! mulawenc ! rtppcmupay !
* fakesink dump=1
*/
guint8 in[] = { /* first 4 bytes are rtp-header, next 4 bytes are timestamp */
0x80, 0x80, 0x1c, 0x24, 0x46, 0xcd, 0xb7, 0x11, 0x3c, 0x3a, 0x7c, 0x5b,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
GstClockTime ts = G_GUINT64_CONSTANT (0);
GstClockTime tso = gst_util_uint64_scale (RTP_FRAME_SIZE, GST_SECOND, 8000);
/*guint latency = GST_TIME_AS_MSECONDS (num_buffers * tso); */
gint i;
GST_DEBUG ("setup_jitterbuffer");
jitterbuffer = gst_check_setup_element ("rtpjitterbuffer");
/* we need a clock here */
clock = gst_system_clock_obtain ();
gst_element_set_clock (jitterbuffer, clock);
gst_object_unref (clock);
/* setup latency */
/* latency would be 7 for 3 buffers here, default is 200
g_object_set (G_OBJECT (jitterbuffer), "latency", latency, NULL);
GST_INFO_OBJECT (jitterbuffer, "set latency to %u ms", latency);
*/
mysrcpad = gst_check_setup_src_pad (jitterbuffer, &srctemplate);
mysinkpad = gst_check_setup_sink_pad (jitterbuffer, &sinktemplate);
gst_pad_set_active (mysrcpad, TRUE);
gst_pad_set_active (mysinkpad, TRUE);
/* create n buffers */
caps = gst_caps_from_string (RTP_CAPS_STRING);
gst_check_setup_events (mysrcpad, jitterbuffer, caps, GST_FORMAT_TIME);
gst_caps_unref (caps);
for (i = 0; i < num_buffers; i++) {
buffer = gst_buffer_new_and_alloc (sizeof (in));
gst_buffer_fill (buffer, 0, in, sizeof (in));
GST_BUFFER_TIMESTAMP (buffer) = ts;
GST_BUFFER_DURATION (buffer) = tso;
gst_mini_object_weak_ref (GST_MINI_OBJECT (buffer), buffer_dropped, NULL);
GST_DEBUG ("created buffer: %p", buffer);
if (!i)
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
inbuffers = g_list_append (inbuffers, buffer);
/* hackish way to update the rtp header */
in[1] = 0x00;
in[3]++; /* seqnumber */
in[7] += RTP_FRAME_SIZE; /* inc. timestamp with framesize */
ts += tso;
}
num_dropped = 0;
return jitterbuffer;
}
static GstStateChangeReturn
start_jitterbuffer (GstElement * jitterbuffer)
{
GstStateChangeReturn ret;
GstClockTime now;
GstClock *clock;
clock = gst_element_get_clock (jitterbuffer);
now = gst_clock_get_time (clock);
gst_object_unref (clock);
gst_element_set_base_time (jitterbuffer, now);
ret = gst_element_set_state (jitterbuffer, GST_STATE_PLAYING);
return ret;
}
static void
cleanup_jitterbuffer (GstElement * jitterbuffer)
{
GST_DEBUG ("cleanup_jitterbuffer");
g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
g_list_free (buffers);
buffers = NULL;
g_list_free (inbuffers);
inbuffers = NULL;
gst_pad_set_active (mysrcpad, FALSE);
gst_pad_set_active (mysinkpad, FALSE);
gst_check_teardown_src_pad (jitterbuffer);
gst_check_teardown_sink_pad (jitterbuffer);
gst_check_teardown_element (jitterbuffer);
}
static void
check_jitterbuffer_results (GstElement * jitterbuffer, gint num_buffers)
{
GstBuffer *buffer;
GList *node;
GstClockTime ts = G_GUINT64_CONSTANT (0);
GstClockTime tso = gst_util_uint64_scale (RTP_FRAME_SIZE, GST_SECOND, 8000);
GstMapInfo map;
guint16 prev_sn = 0, cur_sn;
guint32 prev_ts = 0, cur_ts;
/* sleep for twice the latency */
g_usleep (400 * 1000);
GST_INFO ("of %d buffer %d/%d received/dropped", num_buffers,
g_list_length (buffers), num_dropped);
/* if this fails, not all buffers have been processed */
fail_unless_equals_int ((g_list_length (buffers) + num_dropped), num_buffers);
/* check the buffer list */
fail_unless_equals_int (g_list_length (buffers), num_buffers);
for (node = buffers; node; node = g_list_next (node)) {
fail_if ((buffer = (GstBuffer *) node->data) == NULL);
fail_if (GST_BUFFER_TIMESTAMP (buffer) != ts);
gst_buffer_map (buffer, &map, GST_MAP_READ);
cur_sn = ((guint16) map.data[2] << 8) | map.data[3];
cur_ts = ((guint32) map.data[4] << 24) | ((guint32) map.data[5] << 16) |
((guint32) map.data[6] << 8) | map.data[7];
gst_buffer_unmap (buffer, &map);
if (node != buffers) {
fail_unless (cur_sn > prev_sn);
fail_unless (cur_ts > prev_ts);
prev_sn = cur_sn;
prev_ts = cur_ts;
}
ts += tso;
}
}
GST_START_TEST (test_push_forward_seq)
{
GstElement *jitterbuffer;
const guint num_buffers = 3;
GstBuffer *buffer;
GList *node;
jitterbuffer = setup_jitterbuffer (num_buffers);
fail_unless (start_jitterbuffer (jitterbuffer)
== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
/* push buffers: 0,1,2, */
for (node = inbuffers; node; node = g_list_next (node)) {
buffer = (GstBuffer *) node->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
}
/* check the buffer list */
check_jitterbuffer_results (jitterbuffer, num_buffers);
/* cleanup */
cleanup_jitterbuffer (jitterbuffer);
}
GST_END_TEST;
GST_START_TEST (test_push_backward_seq)
{
GstElement *jitterbuffer;
const guint num_buffers = 4;
GstBuffer *buffer;
GList *node;
jitterbuffer = setup_jitterbuffer (num_buffers);
fail_unless (start_jitterbuffer (jitterbuffer)
== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
/* push buffers: 0,3,2,1 */
buffer = (GstBuffer *) inbuffers->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
for (node = g_list_last (inbuffers); node != inbuffers;
node = g_list_previous (node)) {
buffer = (GstBuffer *) node->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
}
/* check the buffer list */
check_jitterbuffer_results (jitterbuffer, num_buffers);
/* cleanup */
cleanup_jitterbuffer (jitterbuffer);
}
GST_END_TEST;
GST_START_TEST (test_push_unordered)
{
GstElement *jitterbuffer;
const guint num_buffers = 4;
GstBuffer *buffer;
jitterbuffer = setup_jitterbuffer (num_buffers);
fail_unless (start_jitterbuffer (jitterbuffer)
== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
/* push buffers; 0,2,1,3 */
buffer = (GstBuffer *) inbuffers->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
buffer = g_list_nth_data (inbuffers, 2);
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
buffer = g_list_nth_data (inbuffers, 1);
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
buffer = g_list_nth_data (inbuffers, 3);
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
/* check the buffer list */
check_jitterbuffer_results (jitterbuffer, num_buffers);
/* cleanup */
cleanup_jitterbuffer (jitterbuffer);
}
GST_END_TEST;
GST_START_TEST (test_basetime)
{
GstElement *jitterbuffer;
const guint num_buffers = 3;
GstBuffer *buffer;
GList *node;
GstClockTime tso = gst_util_uint64_scale (RTP_FRAME_SIZE, GST_SECOND, 8000);
jitterbuffer = setup_jitterbuffer (num_buffers);
fail_unless (start_jitterbuffer (jitterbuffer)
== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
/* push buffers: 2,1,0 */
for (node = g_list_last (inbuffers); node; node = g_list_previous (node)) {
buffer = (GstBuffer *) node->data;
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
}
/* sleep for twice the latency */
g_usleep (400 * 1000);
/* if this fails, not all buffers have been processed */
fail_unless_equals_int ((g_list_length (buffers) + num_dropped), num_buffers);
buffer = (GstBuffer *) buffers->data;
fail_unless (GST_BUFFER_TIMESTAMP (buffer) != (num_buffers * tso));
/* cleanup */
cleanup_jitterbuffer (jitterbuffer);
}
GST_END_TEST;
#if 0
static const guint payload_size = 160;
static const guint clock_rate = 8000;
static const guint pcmu_payload_type = 0;
static const guint test_ssrc = 0x01BADBAD;
typedef struct
{
GstElement *jitter_buffer;
GstPad *test_sink_pad, *test_src_pad;
GstClock *clock;
GAsyncQueue *buf_queue;
GAsyncQueue *event_queue;
gint lost_event_count;
} TestData;
static GstCaps *
generate_caps (void)
{
return gst_caps_new_simple ("application/x-rtp",
"media", G_TYPE_STRING, "audio",
"clock-rate", G_TYPE_INT, clock_rate,
"encoding-name", G_TYPE_STRING, "PCMU",
"payload", G_TYPE_INT, pcmu_payload_type,
"ssrc", G_TYPE_UINT, test_ssrc, NULL);
}
static GstBuffer *
generate_test_buffer (GstClockTime gst_ts,
gboolean marker_bit, guint seq_num, guint32 rtp_ts)
{
GstBuffer *buf;
guint8 *payload;
guint i;
buf = gst_rtp_buffer_new_allocate (payload_size, 0, 0);
GST_BUFFER_TIMESTAMP (buf) = gst_ts;
GST_BUFFER_CAPS (buf) = generate_caps ();
gst_rtp_buffer_set_payload_type (buf, pcmu_payload_type);
gst_rtp_buffer_set_marker (buf, marker_bit);
gst_rtp_buffer_set_seq (buf, seq_num);
gst_rtp_buffer_set_timestamp (buf, rtp_ts);
gst_rtp_buffer_set_ssrc (buf, test_ssrc);
payload = gst_rtp_buffer_get_payload (buf);
for (i = 0; i < payload_size; i++)
payload[i] = 0xff;
return buf;
}
static GstFlowReturn
test_sink_pad_chain_cb (GstPad * pad, GstBuffer * buffer)
{
TestData *data = gst_pad_get_element_private (pad);
g_async_queue_push (data->buf_queue, buffer);
return GST_FLOW_OK;
}
static gboolean
test_sink_pad_event_cb (GstPad * pad, GstEvent * event)
{
TestData *data = gst_pad_get_element_private (pad);
const GstStructure *structure = gst_event_get_structure (event);
if (strcmp (gst_structure_get_name (structure), "GstRTPPacketLost") == 0)
data->lost_event_count++;
g_async_queue_push (data->event_queue, event);
return TRUE;
}
static void
setup_testharness (TestData * data)
{
GstPad *jb_sink_pad, *jb_src_pad;
// create the testclock
data->clock = gst_test_clock_new ();
g_assert (data->clock);
gst_test_clock_set_time (GST_TEST_CLOCK (data->clock), 0);
// rig up the jitter buffer
data->jitter_buffer = gst_element_factory_make ("gstrtpjitterbuffer", NULL);
g_assert (data->jitter_buffer);
gst_element_set_clock (data->jitter_buffer, data->clock);
g_object_set (data->jitter_buffer, "do-lost", TRUE, NULL);
g_assert_cmpint (gst_element_set_state (data->jitter_buffer,
GST_STATE_PLAYING), !=, GST_STATE_CHANGE_FAILURE);
// link in the test source-pad
data->test_src_pad = gst_pad_new ("src", GST_PAD_SRC);
gst_pad_set_caps (data->test_src_pad, generate_caps ());
jb_sink_pad = gst_element_get_pad (data->jitter_buffer, "sink");
g_assert_cmpint (gst_pad_link (data->test_src_pad, jb_sink_pad), ==,
GST_PAD_LINK_OK);
g_assert (gst_pad_set_active (data->test_src_pad, TRUE));
gst_object_unref (jb_sink_pad);
// link in the test sink-pad
data->test_sink_pad = gst_pad_new ("sink", GST_PAD_SINK);
gst_pad_set_caps (data->test_sink_pad, generate_caps ());
gst_pad_set_chain_function (data->test_sink_pad, test_sink_pad_chain_cb);
gst_pad_set_event_function (data->test_sink_pad, test_sink_pad_event_cb);
jb_src_pad = gst_element_get_pad (data->jitter_buffer, "src");
g_assert_cmpint (gst_pad_link (jb_src_pad, data->test_sink_pad), ==,
GST_PAD_LINK_OK);
g_assert (gst_pad_set_active (data->test_sink_pad, TRUE));
gst_object_unref (jb_src_pad);
// set up the buf and event queues
data->buf_queue =
g_async_queue_new_full ((GDestroyNotify) gst_mini_object_unref);
data->event_queue =
g_async_queue_new_full ((GDestroyNotify) gst_mini_object_unref);
data->lost_event_count = 0;
gst_pad_set_element_private (data->test_sink_pad, data);
}
static void
destroy_testharness (TestData * data)
{
// clean up
g_assert_cmpint (gst_element_set_state (data->jitter_buffer, GST_STATE_NULL),
==, GST_STATE_CHANGE_SUCCESS);
gst_object_unref (data->jitter_buffer);
data->jitter_buffer = NULL;
gst_object_unref (data->test_src_pad);
data->test_src_pad = NULL;
gst_object_unref (data->test_sink_pad);
data->test_sink_pad = NULL;
gst_object_unref (data->clock);
data->clock = NULL;
g_async_queue_unref (data->buf_queue);
data->buf_queue = NULL;
g_async_queue_unref (data->event_queue);
data->event_queue = NULL;
data->lost_event_count = 0;
}
static void
verify_lost_event (GstEvent * event, guint32 expected_seqnum,
GstClockTime expected_timestamp, GstClockTime expected_duration,
gboolean expected_late)
{
const GstStructure *s = gst_event_get_structure (event);
const GValue *value;
guint32 seqnum;
GstClockTime timestamp;
GstClockTime duration;
gboolean late;
g_assert (gst_structure_get_uint (s, "seqnum", &seqnum));
value = gst_structure_get_value (s, "timestamp");
g_assert (value && G_VALUE_HOLDS_UINT64 (value));
timestamp = g_value_get_uint64 (value);
value = gst_structure_get_value (s, "duration");
g_assert (value && G_VALUE_HOLDS_UINT64 (value));
duration = g_value_get_uint64 (value);
g_assert (gst_structure_get_boolean (s, "late", &late));
g_assert_cmpint (seqnum, ==, expected_seqnum);
g_assert_cmpint (timestamp, ==, expected_timestamp);
g_assert_cmpint (duration, ==, expected_duration);
g_assert (late == expected_late);
}
GST_START_TEST (test_only_one_lost_event_on_large_gaps)
{
TestData data;
GstTestClockPendingID id;
guint64 timeout;
GstBuffer *in_buf, *out_buf;
GstEvent *out_event;
gint jb_latency_ms = 200;
guint buffer_size_ms = (payload_size * 1000) / clock_rate;
setup_testharness (&data);
timeout = 20 * G_USEC_PER_SEC;
g_object_set (data.jitter_buffer, "latency", jb_latency_ms, NULL);
// push the first buffer in
in_buf = generate_test_buffer (0 * GST_MSECOND, TRUE, 0, 0);
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), 0);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// wait for the first buffer to be synced to timestamp + latency
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
// increase the time to timestamp + latency and release the wait
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock),
jb_latency_ms * GST_MSECOND);
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
// check for the buffer coming out that was pushed in
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert_cmpint (GST_BUFFER_TIMESTAMP (out_buf), ==, 0);
// move time ahead 10 seconds
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), 10 * GST_SECOND);
// wait a bit
g_usleep (G_USEC_PER_SEC / 10);
// check that no buffers have been pushed out and no pending waits
g_assert_cmpint (g_async_queue_length (data.buf_queue), ==, 0);
g_assert (gst_test_clock_peek_next_pending_id (GST_TEST_CLOCK (data.clock),
&id) == FALSE);
// a buffer now arrives perfectly on time
in_buf = generate_test_buffer (10 * GST_SECOND, FALSE, 500, 500 * 160);
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), 10 * GST_SECOND);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// release the wait
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
// we should now receive a packet-lost-event for buffers 1 through 489
out_event = g_async_queue_timeout_pop (data.event_queue, timeout);
g_assert (out_event != NULL);
g_assert_cmpint (data.lost_event_count, ==, 1);
verify_lost_event (out_event, 1, 1 * GST_MSECOND * 20, GST_MSECOND * 20 * 489,
TRUE);
// churn through sync_times until the new buffer gets pushed out
while (g_async_queue_length (data.buf_queue) < 1) {
if (gst_test_clock_peek_next_pending_id (GST_TEST_CLOCK (data.clock), &id)) {
if (id.time > gst_clock_get_time (data.clock)) {
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), id.time);
g_print ("setting time to %" GST_TIME_FORMAT "\n",
GST_TIME_ARGS (id.time));
}
gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock));
}
}
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
g_assert_cmpint (gst_rtp_buffer_get_seq (out_buf), ==, 500);
g_assert_cmpint (GST_BUFFER_TIMESTAMP (out_buf), ==, (10 * GST_SECOND));
// we get as many lost events as the the number of buffers the jitterbuffer
// is able to wait for (+ the one we already got)
g_assert_cmpint (data.lost_event_count, ==,
jb_latency_ms / buffer_size_ms + 1);
destroy_testharness (&data);
}
GST_END_TEST;
GST_START_TEST (test_two_lost_one_arrives_in_time)
{
TestData data;
GstTestClockPendingID id;
guint64 timeout;
GstBuffer *in_buf, *out_buf;
GstEvent *out_event;
gint jb_latency_ms = 10;
GstClockTime buffer_time;
gint b;
setup_testharness (&data);
timeout = 20 * G_USEC_PER_SEC;
g_object_set (data.jitter_buffer, "latency", jb_latency_ms, NULL);
// push the first buffer in
in_buf = generate_test_buffer (0 * GST_MSECOND, TRUE, 0, 0);
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), 0);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock),
jb_latency_ms * GST_MSECOND);
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
// push some buffers arriving in perfect time!
for (b = 1; b < 3; b++) {
buffer_time = b * GST_MSECOND * 20;
in_buf = generate_test_buffer (buffer_time, TRUE, b, b * 160);
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), buffer_time);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// check for the buffer coming out that was pushed in
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert_cmpint (GST_BUFFER_TIMESTAMP (out_buf), ==, buffer_time);
}
// hop over 2 packets and make another one (gap of 2)
b = 5;
buffer_time = b * GST_MSECOND * 20;
in_buf = generate_test_buffer (buffer_time, TRUE, b, b * 160);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// verify that the jitterbuffer now wait for the latest moment it can push
// the first lost buffer (buffer 3) out on (buffer-timestamp (60) + latency (10) = 70)
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
g_assert_cmpint (id.time, ==,
(3 * GST_MSECOND * 20) + (jb_latency_ms * GST_MSECOND));
// let the time expire...
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), id.time);
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
// we should now receive a packet-lost-event for buffer 3
out_event = g_async_queue_timeout_pop (data.event_queue, timeout);
g_assert (out_event != NULL);
g_assert_cmpint (data.lost_event_count, ==, 1);
verify_lost_event (out_event, 3, 3 * GST_MSECOND * 20, GST_MSECOND * 20,
FALSE);
// buffer 4 now arrives just in time (time is 70, buffer 4 expires at 90)
b = 4;
buffer_time = b * GST_MSECOND * 20;
in_buf = generate_test_buffer (buffer_time, TRUE, b, b * 160);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// verify that buffer 4 made it through!
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
g_assert_cmpint (gst_rtp_buffer_get_seq (out_buf), ==, 4);
// and see that buffer 5 now arrives in a normal fashion
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert (!GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
g_assert_cmpint (gst_rtp_buffer_get_seq (out_buf), ==, 5);
// should still have only seen 1 packet lost event
g_assert_cmpint (data.lost_event_count, ==, 1);
destroy_testharness (&data);
}
GST_END_TEST;
GST_START_TEST (test_late_packets_still_makes_lost_events)
{
TestData data;
GstTestClockPendingID id;
guint64 timeout;
GstBuffer *in_buf, *out_buf;
GstEvent *out_event;
gint jb_latency_ms = 10;
GstClockTime buffer_time;
gint b;
setup_testharness (&data);
timeout = 20 * G_USEC_PER_SEC;
g_object_set (data.jitter_buffer, "latency", jb_latency_ms, NULL);
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), 10 * GST_SECOND);
// push the first buffer in
in_buf = generate_test_buffer (0 * GST_MSECOND, TRUE, 0, 0);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
// push some buffers in!
for (b = 1; b < 3; b++) {
buffer_time = b * GST_MSECOND * 20;
in_buf = generate_test_buffer (buffer_time, TRUE, b, b * 160);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// check for the buffer coming out that was pushed in
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert_cmpint (GST_BUFFER_TIMESTAMP (out_buf), ==, buffer_time);
}
// hop over 2 packets and make another one (gap of 2)
b = 5;
buffer_time = b * GST_MSECOND * 20;
in_buf = generate_test_buffer (buffer_time, TRUE, b, b * 160);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// release the wait
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
// we should now receive a packet-lost-event for buffer 3 and 4
out_event = g_async_queue_timeout_pop (data.event_queue, timeout);
g_assert (out_event != NULL);
g_assert_cmpint (data.lost_event_count, ==, 1);
verify_lost_event (out_event, 3, 3 * GST_MSECOND * 20, GST_MSECOND * 20 * 2,
TRUE);
// verify that buffer 5 made it through!
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
g_assert_cmpint (gst_rtp_buffer_get_seq (out_buf), ==, 5);
// should still have only seen 1 packet lost event
g_assert_cmpint (data.lost_event_count, ==, 1);
destroy_testharness (&data);
}
GST_END_TEST;
GST_START_TEST (test_all_packets_are_timestamped_zero)
{
TestData data;
GstTestClockPendingID id;
guint64 timeout;
GstBuffer *in_buf, *out_buf;
GstEvent *out_event;
gint jb_latency_ms = 10;
GstClockTime buffer_time;
gint b;
setup_testharness (&data);
timeout = 20 * G_USEC_PER_SEC;
g_object_set (data.jitter_buffer, "latency", jb_latency_ms, NULL);
gst_test_clock_set_time (GST_TEST_CLOCK (data.clock), 10 * GST_SECOND);
// push the first buffer in
in_buf = generate_test_buffer (0 * GST_MSECOND, TRUE, 0, 0);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
// push some buffers in!
for (b = 1; b < 3; b++) {
in_buf = generate_test_buffer (0, TRUE, b, 0);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// check for the buffer coming out that was pushed in
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert_cmpint (GST_BUFFER_TIMESTAMP (out_buf), ==, 0);
}
// hop over 2 packets and make another one (gap of 2)
b = 5;
in_buf = generate_test_buffer (0, TRUE, b, 0);
g_assert_cmpint (gst_pad_push (data.test_src_pad, in_buf), ==, GST_FLOW_OK);
// release the wait
g_assert (gst_test_clock_wait_for_next_pending_id (GST_TEST_CLOCK
(data.clock), &id));
g_assert (gst_test_clock_process_next_clock_id (GST_TEST_CLOCK (data.clock))
== id.clock_id);
// we should now receive a packet-lost-event for buffer 3 and 4
out_event = g_async_queue_timeout_pop (data.event_queue, timeout);
g_assert (out_event != NULL);
g_assert_cmpint (data.lost_event_count, ==, 1);
verify_lost_event (out_event, 3, 0, 0, TRUE);
// verify that buffer 5 made it through!
out_buf = g_async_queue_timeout_pop (data.buf_queue, timeout);
g_assert (out_buf != NULL);
g_assert (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
g_assert_cmpint (gst_rtp_buffer_get_seq (out_buf), ==, 5);
// should still have only seen 1 packet lost event
g_assert_cmpint (data.lost_event_count, ==, 1);
destroy_testharness (&data);
}
GST_END_TEST;
#endif
static Suite *
rtpjitterbuffer_suite (void)
{
Suite *s = suite_create ("rtpjitterbuffer");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_push_forward_seq);
tcase_add_test (tc_chain, test_push_backward_seq);
tcase_add_test (tc_chain, test_push_unordered);
tcase_add_test (tc_chain, test_basetime);
#if 0
tcase_add_test (tc_chain, test_only_one_lost_event_on_large_gaps);
tcase_add_test (tc_chain, test_two_lost_one_arrives_in_time);
tcase_add_test (tc_chain, test_late_packets_still_makes_lost_events);
tcase_add_test (tc_chain, test_all_packets_are_timestamped_zero);
#endif
/* FIXME: test buffer lists */
return s;
}
GST_CHECK_MAIN (rtpjitterbuffer);