mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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d815035e82
This tests the changes introduced by 4d3b8d1129
for issue #571.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3416>
3585 lines
120 KiB
C
3585 lines
120 KiB
C
/* GStreamer
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*
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* Copyright (C) 2009 Nokia Corporation and its subsidiary(-ies)
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* contact: <stefan.kost@nokia.com>
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* Copyright (C) 2012 Cisco Systems, Inc
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* Authors: Kelley Rogers <kelro@cisco.com>
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* Havard Graff <hgraff@cisco.com>
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* Copyright (C) 2013-2016 Pexip AS
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* Stian Selnes <stian@pexip>
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* Havard Graff <havard@pexip>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <gst/check/gstcheck.h>
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#include <gst/check/gsttestclock.h>
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#include <gst/check/gstharness.h>
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#include <gst/rtp/gstrtpbuffer.h>
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/* For ease of programming we use globals to keep refs for our floating
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* src and sink pads we create; otherwise we always have to do get_pad,
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* get_peer, and then remove references in every test function */
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static GstPad *mysrcpad, *mysinkpad;
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/* we also have a list of src buffers */
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static GList *inbuffers = NULL;
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static gint num_dropped = 0;
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#define RTP_CAPS_STRING \
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"application/x-rtp, " \
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"media = (string)audio, " \
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"payload = (int) 0, " \
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"clock-rate = (int) 8000, " \
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"encoding-name = (string)PCMU"
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#define RTP_FRAME_SIZE 20
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp")
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);
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp, "
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"clock-rate = (int) [ 1, 2147483647 ]")
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);
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static void
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buffer_dropped (G_GNUC_UNUSED gpointer data, GstMiniObject * obj)
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{
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GST_DEBUG ("dropping buffer %p", obj);
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num_dropped++;
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}
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static GstElement *
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setup_jitterbuffer (gint num_buffers)
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{
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GstElement *jitterbuffer;
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GstClock *clock;
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GstBuffer *buffer;
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GstCaps *caps;
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/* a 20 sample audio block (2,5 ms) generated with
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* gst-launch audiotestsrc wave=silence blocksize=40 num-buffers=3 !
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* "audio/x-raw,channels=1,rate=8000" ! mulawenc ! rtppcmupay !
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* fakesink dump=1
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*/
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guint8 in[] = {
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/* first 4 bytes are rtp-header, next 4 bytes are timestamp */
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0x80, 0x80, 0x1c, 0x24, 0x46, 0xcd, 0xb7, 0x11, 0x3c, 0x3a, 0x7c, 0x5b,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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GstClockTime ts = G_GUINT64_CONSTANT (0);
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GstClockTime tso = gst_util_uint64_scale (RTP_FRAME_SIZE, GST_SECOND, 8000);
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/*guint latency = GST_TIME_AS_MSECONDS (num_buffers * tso); */
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gint i;
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GST_DEBUG ("setup_jitterbuffer");
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jitterbuffer = gst_check_setup_element ("rtpjitterbuffer");
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/* we need a clock here */
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clock = gst_system_clock_obtain ();
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gst_element_set_clock (jitterbuffer, clock);
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gst_object_unref (clock);
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/* setup latency */
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/* latency would be 7 for 3 buffers here, default is 200
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g_object_set (G_OBJECT (jitterbuffer), "latency", latency, NULL);
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GST_INFO_OBJECT (jitterbuffer, "set latency to %u ms", latency);
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*/
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mysrcpad = gst_check_setup_src_pad (jitterbuffer, &srctemplate);
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mysinkpad = gst_check_setup_sink_pad (jitterbuffer, &sinktemplate);
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gst_pad_set_active (mysrcpad, TRUE);
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gst_pad_set_active (mysinkpad, TRUE);
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/* create n buffers */
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caps = gst_caps_from_string (RTP_CAPS_STRING);
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gst_check_setup_events (mysrcpad, jitterbuffer, caps, GST_FORMAT_TIME);
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gst_caps_unref (caps);
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for (i = 0; i < num_buffers; i++) {
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buffer = gst_buffer_new_and_alloc (sizeof (in));
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gst_buffer_fill (buffer, 0, in, sizeof (in));
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GST_BUFFER_DTS (buffer) = ts;
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GST_BUFFER_PTS (buffer) = ts;
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GST_BUFFER_DURATION (buffer) = tso;
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gst_mini_object_weak_ref (GST_MINI_OBJECT (buffer), buffer_dropped, NULL);
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GST_DEBUG ("created buffer: %p", buffer);
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if (!i)
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GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
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inbuffers = g_list_append (inbuffers, buffer);
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/* hackish way to update the rtp header */
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in[1] = 0x00;
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in[3]++; /* seqnumber */
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in[7] += RTP_FRAME_SIZE; /* inc. timestamp with framesize */
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ts += tso;
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}
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num_dropped = 0;
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return jitterbuffer;
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}
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static GstStateChangeReturn
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start_jitterbuffer (GstElement * jitterbuffer)
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{
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GstStateChangeReturn ret;
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GstClockTime now;
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GstClock *clock;
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clock = gst_element_get_clock (jitterbuffer);
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now = gst_clock_get_time (clock);
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gst_object_unref (clock);
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gst_element_set_base_time (jitterbuffer, now);
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ret = gst_element_set_state (jitterbuffer, GST_STATE_PLAYING);
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return ret;
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}
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static void
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cleanup_jitterbuffer (GstElement * jitterbuffer)
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{
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GST_DEBUG ("cleanup_jitterbuffer");
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g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
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g_list_free (buffers);
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buffers = NULL;
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g_list_free (inbuffers);
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inbuffers = NULL;
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gst_pad_set_active (mysrcpad, FALSE);
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gst_pad_set_active (mysinkpad, FALSE);
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gst_element_set_state (jitterbuffer, GST_STATE_NULL);
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gst_check_teardown_src_pad (jitterbuffer);
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gst_check_teardown_sink_pad (jitterbuffer);
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gst_check_teardown_element (jitterbuffer);
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}
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static void
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check_jitterbuffer_results (gint num_buffers)
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{
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GstBuffer *buffer;
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GList *node;
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GstClockTime ts = G_GUINT64_CONSTANT (0);
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GstClockTime tso = gst_util_uint64_scale (RTP_FRAME_SIZE, GST_SECOND, 8000);
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GstMapInfo map;
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guint16 prev_sn = 0, cur_sn;
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guint32 prev_ts = 0, cur_ts;
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/* sleep for twice the latency */
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g_usleep (400 * 1000);
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GST_INFO ("of %d buffer %d/%d received/dropped", num_buffers,
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g_list_length (buffers), num_dropped);
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/* if this fails, not all buffers have been processed */
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fail_unless_equals_int ((g_list_length (buffers) + num_dropped), num_buffers);
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/* check the buffer list */
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fail_unless_equals_int (g_list_length (buffers), num_buffers);
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for (node = buffers; node; node = g_list_next (node)) {
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fail_if ((buffer = (GstBuffer *) node->data) == NULL);
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fail_if (GST_BUFFER_PTS (buffer) != ts);
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gst_buffer_map (buffer, &map, GST_MAP_READ);
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cur_sn = ((guint16) map.data[2] << 8) | map.data[3];
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cur_ts = ((guint32) map.data[4] << 24) | ((guint32) map.data[5] << 16) |
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((guint32) map.data[6] << 8) | map.data[7];
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gst_buffer_unmap (buffer, &map);
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if (node != buffers) {
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fail_unless (cur_sn > prev_sn);
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fail_unless (cur_ts > prev_ts);
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prev_sn = cur_sn;
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prev_ts = cur_ts;
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}
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ts += tso;
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}
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}
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GST_START_TEST (test_push_forward_seq)
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{
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GstElement *jitterbuffer;
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const guint num_buffers = 3;
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GstBuffer *buffer;
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GList *node;
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jitterbuffer = setup_jitterbuffer (num_buffers);
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fail_unless (start_jitterbuffer (jitterbuffer)
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== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
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/* push buffers: 0,1,2, */
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for (node = inbuffers; node; node = g_list_next (node)) {
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buffer = (GstBuffer *) node->data;
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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}
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/* check the buffer list */
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check_jitterbuffer_results (num_buffers);
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/* cleanup */
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cleanup_jitterbuffer (jitterbuffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_push_backward_seq)
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{
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GstElement *jitterbuffer;
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const guint num_buffers = 4;
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GstBuffer *buffer;
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GList *node;
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jitterbuffer = setup_jitterbuffer (num_buffers);
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fail_unless (start_jitterbuffer (jitterbuffer)
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== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
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/* push buffers: 0,3,2,1 */
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buffer = (GstBuffer *) inbuffers->data;
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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for (node = g_list_last (inbuffers); node != inbuffers;
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node = g_list_previous (node)) {
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buffer = (GstBuffer *) node->data;
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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}
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/* check the buffer list */
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check_jitterbuffer_results (num_buffers);
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/* cleanup */
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cleanup_jitterbuffer (jitterbuffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_push_unordered)
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{
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GstElement *jitterbuffer;
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const guint num_buffers = 4;
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GstBuffer *buffer;
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jitterbuffer = setup_jitterbuffer (num_buffers);
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fail_unless (start_jitterbuffer (jitterbuffer)
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== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
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/* push buffers; 0,2,1,3 */
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buffer = (GstBuffer *) inbuffers->data;
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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buffer = g_list_nth_data (inbuffers, 2);
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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buffer = g_list_nth_data (inbuffers, 1);
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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buffer = g_list_nth_data (inbuffers, 3);
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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/* check the buffer list */
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check_jitterbuffer_results (num_buffers);
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/* cleanup */
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cleanup_jitterbuffer (jitterbuffer);
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}
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GST_END_TEST;
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gboolean is_eos;
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static gboolean
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eos_event_function (G_GNUC_UNUSED GstPad * pad,
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G_GNUC_UNUSED GstObject * parent, GstEvent * event)
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{
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if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
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g_mutex_lock (&check_mutex);
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is_eos = TRUE;
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g_cond_signal (&check_cond);
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g_mutex_unlock (&check_mutex);
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}
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gst_event_unref (event);
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return TRUE;
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}
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GST_START_TEST (test_push_eos)
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{
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GstElement *jitterbuffer;
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const guint num_buffers = 5;
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GList *node;
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GstStructure *stats;
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guint64 pushed, lost, late, duplicates;
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int n = 0;
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is_eos = FALSE;
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jitterbuffer = setup_jitterbuffer (num_buffers);
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gst_pad_set_event_function (mysinkpad, eos_event_function);
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g_object_set (jitterbuffer, "latency", 1, NULL);
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fail_unless (start_jitterbuffer (jitterbuffer)
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== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
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/* push buffers: 0,1,2, */
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for (node = inbuffers; node; node = g_list_next (node)) {
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GstBuffer *buffer;
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/* steal buffer from list */
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buffer = node->data;
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node->data = NULL;
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n++;
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/* Skip 1 */
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if (n == 2) {
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gst_buffer_unref (buffer);
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continue;
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}
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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}
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gst_pad_push_event (mysrcpad, gst_event_new_eos ());
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g_mutex_lock (&check_mutex);
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while (!is_eos)
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g_cond_wait (&check_cond, &check_mutex);
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g_mutex_unlock (&check_mutex);
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fail_unless_equals_int (g_list_length (buffers), num_buffers - 1);
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/* Verify statistics */
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g_object_get (jitterbuffer, "stats", &stats, NULL);
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gst_structure_get (stats, "num-pushed", G_TYPE_UINT64, &pushed,
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"num-lost", G_TYPE_UINT64, &lost,
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"num-late", G_TYPE_UINT64, &late,
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"num-duplicates", G_TYPE_UINT64, &duplicates, NULL);
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fail_unless_equals_int (pushed, g_list_length (inbuffers) - 1);
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fail_unless_equals_int (lost, 1);
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fail_unless_equals_int (late, 0);
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fail_unless_equals_int (duplicates, 0);
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gst_structure_free (stats);
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/* cleanup */
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cleanup_jitterbuffer (jitterbuffer);
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}
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GST_END_TEST;
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GST_START_TEST (test_basetime)
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{
|
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GstElement *jitterbuffer;
|
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const guint num_buffers = 3;
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GstBuffer *buffer;
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GList *node;
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GstClockTime tso = gst_util_uint64_scale (RTP_FRAME_SIZE, GST_SECOND, 8000);
|
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jitterbuffer = setup_jitterbuffer (num_buffers);
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fail_unless (start_jitterbuffer (jitterbuffer)
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== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
|
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|
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/* push buffers: 2,1,0 */
|
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for (node = g_list_last (inbuffers); node; node = g_list_previous (node)) {
|
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buffer = (GstBuffer *) node->data;
|
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fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
|
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}
|
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|
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/* sleep for twice the latency */
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g_usleep (400 * 1000);
|
||
|
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/* if this fails, not all buffers have been processed */
|
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fail_unless_equals_int ((g_list_length (buffers) + num_dropped), num_buffers);
|
||
|
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buffer = (GstBuffer *) buffers->data;
|
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fail_unless (GST_BUFFER_DTS (buffer) != (num_buffers * tso));
|
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fail_unless (GST_BUFFER_PTS (buffer) != (num_buffers * tso));
|
||
|
||
/* cleanup */
|
||
cleanup_jitterbuffer (jitterbuffer);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
static GstCaps *
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request_pt_map (G_GNUC_UNUSED GstElement * jitterbuffer, guint pt)
|
||
{
|
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fail_unless (pt == 0);
|
||
|
||
return gst_caps_from_string (RTP_CAPS_STRING);
|
||
}
|
||
|
||
GST_START_TEST (test_clear_pt_map)
|
||
{
|
||
GstElement *jitterbuffer;
|
||
const guint num_buffers = 10;
|
||
gint i;
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||
GstBuffer *buffer;
|
||
GList *node;
|
||
|
||
jitterbuffer = setup_jitterbuffer (num_buffers);
|
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fail_unless (start_jitterbuffer (jitterbuffer)
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== GST_STATE_CHANGE_SUCCESS, "could not set to playing");
|
||
|
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g_signal_connect (jitterbuffer, "request-pt-map", (GCallback)
|
||
request_pt_map, NULL);
|
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|
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/* push buffers: 0,1,2, */
|
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for (node = inbuffers, i = 0; node && i < 3; node = g_list_next (node), i++) {
|
||
buffer = (GstBuffer *) node->data;
|
||
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
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||
}
|
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g_usleep (400 * 1000);
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||
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g_signal_emit_by_name (jitterbuffer, "clear-pt-map", NULL);
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||
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for (; node && i < 10; node = g_list_next (node), i++) {
|
||
buffer = (GstBuffer *) node->data;
|
||
fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
|
||
}
|
||
|
||
/* check the buffer list */
|
||
check_jitterbuffer_results (num_buffers);
|
||
|
||
/* cleanup */
|
||
cleanup_jitterbuffer (jitterbuffer);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
#define TEST_BUF_CLOCK_RATE 8000
|
||
#define AS_TEST_BUF_RTP_TIME(gst_time) gst_util_uint64_scale_int (TEST_BUF_CLOCK_RATE, gst_time, GST_SECOND)
|
||
#define TEST_BUF_PT 0
|
||
#define TEST_BUF_SSRC 0x01BADBAD
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||
#define TEST_BUF_MS 20
|
||
#define TEST_BUF_DURATION (TEST_BUF_MS * GST_MSECOND)
|
||
#define TEST_BUF_SIZE (64000 * TEST_BUF_MS / 1000)
|
||
#define TEST_RTP_TS_DURATION AS_TEST_BUF_RTP_TIME (TEST_BUF_DURATION)
|
||
|
||
static GstCaps *
|
||
generate_caps (void)
|
||
{
|
||
return gst_caps_new_simple ("application/x-rtp",
|
||
"media", G_TYPE_STRING, "audio",
|
||
"clock-rate", G_TYPE_INT, TEST_BUF_CLOCK_RATE,
|
||
"encoding-name", G_TYPE_STRING, "TEST",
|
||
"payload", G_TYPE_INT, TEST_BUF_PT,
|
||
"ssrc", G_TYPE_UINT, TEST_BUF_SSRC, NULL);
|
||
}
|
||
|
||
static GstBuffer *
|
||
generate_test_buffer_full (GstClockTime dts, guint seq_num, guint32 rtp_ts)
|
||
{
|
||
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_DTS (buf) = dts;
|
||
|
||
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, seq_num);
|
||
gst_rtp_buffer_set_timestamp (&rtp, rtp_ts);
|
||
gst_rtp_buffer_set_ssrc (&rtp, TEST_BUF_SSRC);
|
||
|
||
payload = gst_rtp_buffer_get_payload (&rtp);
|
||
for (i = 0; i < TEST_BUF_SIZE; i++)
|
||
payload[i] = 0xff;
|
||
|
||
gst_rtp_buffer_unmap (&rtp);
|
||
|
||
return buf;
|
||
}
|
||
|
||
static GstBuffer *
|
||
generate_test_buffer (guint seq_num)
|
||
{
|
||
return generate_test_buffer_full (seq_num * TEST_BUF_DURATION,
|
||
seq_num, seq_num * TEST_RTP_TS_DURATION);
|
||
}
|
||
|
||
static GstBuffer *
|
||
generate_test_buffer_rtx (GstClockTime dts, guint seq_num)
|
||
{
|
||
GstBuffer *buffer = generate_test_buffer_full (dts, seq_num,
|
||
seq_num * TEST_RTP_TS_DURATION);
|
||
GST_BUFFER_FLAG_SET (buffer, GST_RTP_BUFFER_FLAG_RETRANSMISSION);
|
||
return buffer;
|
||
}
|
||
|
||
static void
|
||
push_test_buffer (GstHarness * h, guint seq_num)
|
||
{
|
||
gst_harness_set_time (h, seq_num * TEST_BUF_DURATION);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer (seq_num)));
|
||
}
|
||
|
||
static void
|
||
push_test_buffer_now (GstHarness * h, guint seqnum, guint32 rtptime,
|
||
gboolean rtx)
|
||
{
|
||
GstClockTime now =
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)) -
|
||
h->element->base_time;
|
||
GstBuffer *buf = generate_test_buffer_full (now, seqnum, rtptime);
|
||
if (rtx)
|
||
GST_BUFFER_FLAG_SET (buf, GST_RTP_BUFFER_FLAG_RETRANSMISSION);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buf));
|
||
}
|
||
|
||
static gint
|
||
get_rtp_seq_num (GstBuffer * buf)
|
||
{
|
||
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
|
||
gint seq;
|
||
gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp);
|
||
seq = gst_rtp_buffer_get_seq (&rtp);
|
||
gst_rtp_buffer_unmap (&rtp);
|
||
return seq;
|
||
}
|
||
|
||
static void
|
||
verify_lost_event (GstHarness * h, guint exp_seq, GstClockTime exp_ts,
|
||
GstClockTime exp_dur)
|
||
{
|
||
GstEvent *event;
|
||
const GstStructure *s;
|
||
const GValue *value;
|
||
guint seq;
|
||
GstClockTime ts;
|
||
GstClockTime dur;
|
||
|
||
event = gst_harness_pull_event (h);
|
||
fail_unless (event != NULL);
|
||
|
||
s = gst_event_get_structure (event);
|
||
fail_unless (s != NULL);
|
||
fail_unless (gst_structure_get_uint (s, "seqnum", &seq));
|
||
|
||
value = gst_structure_get_value (s, "timestamp");
|
||
fail_unless (value && G_VALUE_HOLDS_UINT64 (value));
|
||
|
||
ts = g_value_get_uint64 (value);
|
||
value = gst_structure_get_value (s, "duration");
|
||
fail_unless (value && G_VALUE_HOLDS_UINT64 (value));
|
||
|
||
dur = g_value_get_uint64 (value);
|
||
fail_unless_equals_int ((guint16) exp_seq, seq);
|
||
fail_unless_equals_uint64 (exp_ts, ts);
|
||
fail_unless_equals_uint64 (exp_dur, dur);
|
||
|
||
gst_event_unref (event);
|
||
}
|
||
|
||
static void
|
||
verify_rtx_event (GstHarness * h, guint exp_seq, GstClockTime exp_ts,
|
||
gint exp_delay, GstClockTime exp_spacing)
|
||
{
|
||
GstEvent *event;
|
||
const GstStructure *s;
|
||
const GValue *value;
|
||
guint seq;
|
||
GstClockTime ts;
|
||
guint delay;
|
||
GstClockTime spacing;
|
||
|
||
event = gst_harness_pull_upstream_event (h);
|
||
fail_unless (event != NULL);
|
||
|
||
s = gst_event_get_structure (event);
|
||
fail_unless (s != NULL);
|
||
fail_unless (gst_structure_get_uint (s, "seqnum", &seq));
|
||
|
||
value = gst_structure_get_value (s, "running-time");
|
||
fail_unless (value && G_VALUE_HOLDS_UINT64 (value));
|
||
|
||
ts = g_value_get_uint64 (value);
|
||
fail_unless (gst_structure_get_uint (s, "delay", &delay));
|
||
value = gst_structure_get_value (s, "packet-spacing");
|
||
fail_unless (value && G_VALUE_HOLDS_UINT64 (value));
|
||
spacing = g_value_get_uint64 (value);
|
||
fail_unless_equals_int ((guint16) exp_seq, seq);
|
||
fail_unless_equals_uint64 (exp_ts, ts);
|
||
fail_unless_equals_int (exp_delay, delay);
|
||
fail_unless_equals_uint64 (exp_spacing, spacing);
|
||
|
||
gst_event_unref (event);
|
||
}
|
||
|
||
static gboolean
|
||
verify_jb_stats (GstElement * jb, GstStructure * expected)
|
||
{
|
||
gboolean ret;
|
||
GstStructure *actual;
|
||
g_object_get (jb, "stats", &actual, NULL);
|
||
|
||
ret = gst_structure_is_subset (actual, expected);
|
||
|
||
if (!ret) {
|
||
gchar *e_str = gst_structure_to_string (expected);
|
||
gchar *a_str = gst_structure_to_string (actual);
|
||
fail_unless (ret, "%s is not a subset of %s", e_str, a_str);
|
||
g_free (e_str);
|
||
g_free (a_str);
|
||
}
|
||
|
||
gst_structure_free (expected);
|
||
gst_structure_free (actual);
|
||
|
||
return ret;
|
||
}
|
||
|
||
static guint
|
||
construct_deterministic_initial_state (GstHarness * h, gint latency_ms)
|
||
{
|
||
guint next_seqnum = latency_ms / TEST_BUF_MS + 1;
|
||
guint seqnum;
|
||
gint i;
|
||
|
||
g_assert (latency_ms % TEST_BUF_MS == 0);
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
g_object_set (h->element, "latency", latency_ms, NULL);
|
||
|
||
/* When the first packet arrives in the jitterbuffer, it will create a
|
||
* timeout for this packet equal to the latency of the jitterbuffer.
|
||
* This is known as DEADLINE internally, and is meant to allow the stream
|
||
* to buffer a bit before starting to push it out, to get some ideas about
|
||
* the nature of the stream. (packetspacing, jitter etc.)
|
||
*
|
||
* When writing tests using the test-clock, it it hence important to know
|
||
* that by simply advancing the clock to this timeout, you are basically
|
||
* describing a stream that had one initial packet, and then nothing at all
|
||
* for the duration of the latency (100ms in this test), which is not a very
|
||
* usual scenario.
|
||
*
|
||
* Instead, a pattern used throughout this test-suite, is to keep the buffers
|
||
* arriving at their optimal time, until the DEADLINE is reached, and that
|
||
* then becomes the "starting-point" for the test, because at this time
|
||
* there should now be no waiting timers (unless using rtx) and we have
|
||
* a "clean" state to craft the test from.
|
||
*/
|
||
|
||
/* Packet 0 arrives at time 0ms, Packet 5 arrives at time 100ms */
|
||
for (seqnum = 0; seqnum < next_seqnum; seqnum++) {
|
||
push_test_buffer (h, seqnum);
|
||
gst_harness_wait_for_clock_id_waits (h, 1, 60);
|
||
}
|
||
|
||
/* We release the DEADLINE timer for packet 0, verify the time is indeed
|
||
* @latency_ms (100ms) and pull out all the buffers that have been released,
|
||
* and verify their PTS and sequence numbers.
|
||
*/
|
||
gst_harness_crank_single_clock_wait (h);
|
||
fail_unless_equals_int64 (latency_ms * GST_MSECOND,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
for (seqnum = 0; seqnum < next_seqnum; seqnum++) {
|
||
GstBuffer *buf = gst_harness_pull (h);
|
||
fail_unless_equals_uint64 (seqnum * TEST_BUF_DURATION,
|
||
GST_BUFFER_PTS (buf));
|
||
fail_unless_equals_int (seqnum, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
}
|
||
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
|
||
/* drop reconfigure event */
|
||
gst_event_unref (gst_harness_pull_upstream_event (h));
|
||
|
||
/* Verify that at this point our queues are empty */
|
||
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
return next_seqnum;
|
||
}
|
||
|
||
GST_START_TEST (test_lost_event)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstBuffer *buf;
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
guint missing_seqnum;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* We will now create a gap in the stream, by skipping one sequence-number,
|
||
* and push the following packet.
|
||
*/
|
||
missing_seqnum = next_seqnum;
|
||
next_seqnum += 1;
|
||
push_test_buffer (h, next_seqnum);
|
||
|
||
/* This packet (@next_seqnum) will now be held back, awaiting the missing one,
|
||
* verify that this is the case:
|
||
*/
|
||
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
/* The lost-timeout for the missing packet will now be its pts + latency, so
|
||
* now we will simply crank the clock to advance to this point in time, and
|
||
* check that we get a lost-event, as well as the last packet we pushed in.
|
||
*/
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, missing_seqnum,
|
||
missing_seqnum * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
buf = gst_harness_pull (h);
|
||
fail_unless_equals_uint64 (next_seqnum * TEST_BUF_DURATION,
|
||
GST_BUFFER_PTS (buf));
|
||
fail_unless_equals_int (next_seqnum, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_only_one_lost_event_on_large_gaps)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
GstBuffer *out_buf;
|
||
guint next_seqnum;
|
||
gint latency_ms = 200;
|
||
gint num_lost_events = latency_ms / TEST_BUF_MS;
|
||
gint i;
|
||
|
||
testclock = gst_harness_get_testclock (h);
|
||
/* Need to set max-misorder-time and max-dropout-time to 0 so the
|
||
* jitterbuffer does not base them on packet rate calculations.
|
||
* If it does, out gap is big enough to be considered a new stream and
|
||
* we wait for a few consecutive packets just to be sure
|
||
*/
|
||
g_object_set (h->element, "do-lost", TRUE,
|
||
"max-misorder-time", 0, "max-dropout-time", 0, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* move time ahead to just before 10 seconds */
|
||
gst_harness_set_time (h, 10 * GST_SECOND - 1);
|
||
|
||
/* check that we have no pending waits */
|
||
fail_unless_equals_int (0, gst_test_clock_peek_id_count (testclock));
|
||
|
||
/* a buffer now arrives perfectly on time */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (500)));
|
||
|
||
/* release the wait, advancing the clock to 10 sec */
|
||
fail_unless (gst_harness_crank_single_clock_wait (h));
|
||
|
||
/* we should now receive a packet-lost-event for buffers 11 through 489 ... */
|
||
verify_lost_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, TEST_BUF_DURATION * (490 - next_seqnum));
|
||
|
||
/* ... as well as 490 (since at 10 sec 490 is too late) */
|
||
verify_lost_event (h, 490, 490 * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
/* we get as many lost events as the the number of *
|
||
* buffers the jitterbuffer is able to wait for */
|
||
for (i = 1; i < num_lost_events; i++) {
|
||
fail_unless (gst_harness_crank_single_clock_wait (h));
|
||
verify_lost_event (h, 490 + i, (490 + i) * TEST_BUF_DURATION,
|
||
TEST_BUF_DURATION);
|
||
}
|
||
|
||
/* and then the buffer is released */
|
||
out_buf = gst_harness_pull (h);
|
||
fail_unless (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
|
||
fail_unless_equals_int (500, get_rtp_seq_num (out_buf));
|
||
fail_unless_equals_uint64 (10 * GST_SECOND, GST_BUFFER_PTS (out_buf));
|
||
gst_buffer_unref (out_buf);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-lost", G_TYPE_UINT64, (guint64) 489, NULL)));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_two_lost_one_arrives_in_time)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
GstClockID id;
|
||
GstBuffer *buf;
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
guint first_missing;
|
||
guint second_missing;
|
||
guint current_arrived;
|
||
|
||
testclock = gst_harness_get_testclock (h);
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* hop over 2 packets and make another one (gap of 2) */
|
||
first_missing = next_seqnum;
|
||
second_missing = next_seqnum + 1;
|
||
current_arrived = next_seqnum + 2;
|
||
push_test_buffer (h, current_arrived);
|
||
|
||
/* verify that the jitterbuffer now wait for the latest moment it can push the
|
||
* @first_missing packet out.
|
||
*/
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
fail_unless_equals_uint64 (first_missing * TEST_BUF_DURATION +
|
||
latency_ms * GST_MSECOND, gst_clock_id_get_time (id));
|
||
gst_clock_id_unref (id);
|
||
|
||
/* let the time expire... */
|
||
fail_unless (gst_harness_crank_single_clock_wait (h));
|
||
|
||
/* we should now receive a packet-lost-event */
|
||
verify_lost_event (h, first_missing,
|
||
first_missing * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
/* @second_missing now arrives just in time */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (second_missing)));
|
||
|
||
/* verify that @second_missing made it through! */
|
||
buf = gst_harness_pull (h);
|
||
fail_unless (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT));
|
||
fail_unless_equals_int (second_missing, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
|
||
/* and see that @current_arrived now also is pushed */
|
||
buf = gst_harness_pull (h);
|
||
fail_unless (!GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT));
|
||
fail_unless_equals_int (current_arrived, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 2,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1, NULL)));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_out_of_order_loss_not_reported)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
GstClockID id;
|
||
GstBuffer *buf;
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
guint first_packet;
|
||
guint late_packet;
|
||
guint third_packet;
|
||
|
||
testclock = gst_harness_get_testclock (h);
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* hop over 2 packets and make another one (gap of 2) */
|
||
first_packet = next_seqnum;
|
||
late_packet = next_seqnum + 1;
|
||
third_packet = next_seqnum + 2;
|
||
push_test_buffer (h, first_packet);
|
||
|
||
/* push the third packet without moving the time */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (third_packet)));
|
||
|
||
/* verify that the jitterbuffer waits for the latest moment it can push the
|
||
* @late_packet packet out.
|
||
*/
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
fail_unless_equals_uint64 (late_packet * TEST_BUF_DURATION +
|
||
latency_ms * GST_MSECOND, gst_clock_id_get_time (id));
|
||
gst_clock_id_unref (id);
|
||
|
||
/* @late_packet now arrives just in time for the latency */
|
||
gst_harness_set_time (h, late_packet * TEST_BUF_DURATION +
|
||
latency_ms * GST_MSECOND);
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (late_packet)));
|
||
fail_unless (gst_harness_crank_single_clock_wait (h));
|
||
|
||
/* verify that @first_packet made it through */
|
||
buf = gst_harness_pull (h);
|
||
fail_unless_equals_int (get_rtp_seq_num (buf), first_packet);
|
||
gst_buffer_unref (buf);
|
||
|
||
/* verify that @late_packet made it through */
|
||
buf = gst_harness_pull (h);
|
||
fail_unless_equals_int (get_rtp_seq_num (buf), late_packet);
|
||
gst_buffer_unref (buf);
|
||
|
||
/* verify that @third_packet made it through */
|
||
buf = gst_harness_pull (h);
|
||
fail_unless (!GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT));
|
||
fail_unless_equals_int (get_rtp_seq_num (buf), third_packet);
|
||
gst_buffer_unref (buf);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) third_packet + 1,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0, NULL)));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_late_packets_still_makes_lost_events)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstBuffer *out_buf;
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
guint seqnum;
|
||
GstClockTime now;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* jump 10 seconds forward in time */
|
||
now = 10 * GST_SECOND;
|
||
gst_harness_set_time (h, now);
|
||
|
||
/* push a packet with a gap of 2, that now is very late */
|
||
seqnum = next_seqnum + 2;
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (now,
|
||
seqnum, seqnum * TEST_RTP_TS_DURATION)));
|
||
|
||
/* We get one "huge" lost-event accounting for all the missing time */
|
||
verify_lost_event (h, next_seqnum, 120 * GST_MSECOND, 9860 * GST_MSECOND);
|
||
|
||
/* and the next packet is optimistically expected to be the one
|
||
just prior to our current packet, so we time that out with a crank */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
|
||
/* and we verify that indeed this lost event was thought to should
|
||
have arrived 20ms prior to the packet that actually arrived */
|
||
verify_lost_event (h, next_seqnum + 1, 9980 * GST_MSECOND, 20 * GST_MSECOND);
|
||
|
||
/* and finally verify that the super-late packet made it through! */
|
||
out_buf = gst_harness_pull (h);
|
||
fail_unless (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
|
||
fail_unless_equals_int (seqnum, get_rtp_seq_num (out_buf));
|
||
gst_buffer_unref (out_buf);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 1,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 2, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
|
||
GST_START_TEST (test_num_late_when_considered_lost_arrives)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gboolean do_lost = __i__ != 0;
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
|
||
g_object_set (h->element, "do-lost", do_lost, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* gap of 1 */
|
||
push_test_buffer (h, next_seqnum + 1);
|
||
|
||
/* crank to trigger lost-event */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
|
||
if (do_lost) {
|
||
/* we should now receive packet-lost-events for the missing packet */
|
||
verify_lost_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
}
|
||
|
||
/* pull out the pushed packet */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* we have one lost packet in the stats */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 1,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0, NULL)));
|
||
|
||
/* the missing packet now arrives (too late) */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (next_seqnum)));
|
||
|
||
/* and this increments num-late */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 1,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1,
|
||
"num-late", G_TYPE_UINT64, (guint64) 1, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_lost_event_uses_pts)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstClockTime now;
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
guint lost_seqnum;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* hop over 1 packets and make another one (gap of 1), but due to
|
||
network delays, this packets is also grossly late */
|
||
lost_seqnum = next_seqnum;
|
||
next_seqnum += 1;
|
||
|
||
/* advance the clock to the latest time packet @next_seqnum could arrive */
|
||
now = next_seqnum * TEST_BUF_DURATION + latency_ms * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, next_seqnum,
|
||
next_seqnum * TEST_RTP_TS_DURATION));
|
||
|
||
/* we should now have received a packet-lost-event for buffer 3 */
|
||
verify_lost_event (h, lost_seqnum,
|
||
lost_seqnum * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
/* and pull out packet 4 */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_lost_event_with_backwards_rtptime)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 40;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/*
|
||
* For video using B-frames, an expected sequence
|
||
* could be like this:
|
||
* (I = I-frame, P = P-frame, B = B-frame)
|
||
* ___ ___ ___ ___ ___
|
||
* ... | 3 | | 4 | | 5 | | 6 | | 7 |
|
||
* ––– ––– ––– ––– –––
|
||
* rtptime: 3(I) 5(P) 5(P) 4(B) 6(P)
|
||
* arrival(dts): 3 5 5 5 6
|
||
*
|
||
* Notice here that packet 6 (the B frame) make
|
||
* the rtptime go backwards.
|
||
*
|
||
* But we get this:
|
||
* ___ ___ _ _ ___ ___
|
||
* ... | 3 | | 4 | | | | 6 | | 7 |
|
||
* ––– ––– - - ––– –––
|
||
* rtptime: 3(I) 5(P) 4(B) 6(P)
|
||
* arrival(dts): 3 5 5 6
|
||
*
|
||
*/
|
||
|
||
/* seqnum 3 */
|
||
push_test_buffer (h, 3);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* seqnum 4, arriving at time 5 with rtptime 5 */
|
||
gst_harness_push (h,
|
||
generate_test_buffer_full (5 * TEST_BUF_DURATION,
|
||
4, 5 * TEST_RTP_TS_DURATION));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* seqnum 6, arriving at time 5 with rtptime 4,
|
||
making a gap for missing seqnum 5 */
|
||
gst_harness_push (h,
|
||
generate_test_buffer_full (5 * TEST_BUF_DURATION,
|
||
6, 4 * TEST_RTP_TS_DURATION));
|
||
|
||
/* seqnum 7, arriving at time 6 with rtptime 6 */
|
||
gst_harness_push (h,
|
||
generate_test_buffer_full (6 * TEST_BUF_DURATION,
|
||
7, 6 * TEST_RTP_TS_DURATION));
|
||
|
||
/* we should now have received a packet-lost-event for seqnum 5,
|
||
with time 5 and 0 duration */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, 5, 5 * TEST_BUF_DURATION, 0);
|
||
|
||
/* and pull out 6 and 7 */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) 7,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_all_packets_are_timestamped_zero)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstBuffer *out_buf;
|
||
gint jb_latency_ms = 100;
|
||
gint i, b;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
g_object_set (h->element, "do-lost", TRUE, "latency", jb_latency_ms, NULL);
|
||
|
||
/* advance the clock with 10 seconds */
|
||
gst_harness_set_time (h, 10 * GST_SECOND);
|
||
|
||
/* push the first buffer through */
|
||
gst_buffer_unref (gst_harness_push_and_pull (h, generate_test_buffer (0)));
|
||
|
||
/* push some buffers in, all timestamped 0 */
|
||
for (b = 1; b < 3; b++) {
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h,
|
||
generate_test_buffer_full (0 * GST_MSECOND, b, 0)));
|
||
|
||
/* check for the buffer coming out that was pushed in */
|
||
out_buf = gst_harness_pull (h);
|
||
fail_unless_equals_uint64 (0, GST_BUFFER_PTS (out_buf));
|
||
gst_buffer_unref (out_buf);
|
||
}
|
||
|
||
/* hop over 2 packets and make another one (gap of 2) */
|
||
b = 5;
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer_full (0 * GST_MSECOND, b, 0)));
|
||
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
|
||
/* we should now receive packet-lost-events for buffer 3 and 4 */
|
||
verify_lost_event (h, 3, 0, 0);
|
||
verify_lost_event (h, 4, 0, 0);
|
||
|
||
/* verify that buffer 5 made it through! */
|
||
out_buf = gst_harness_pull (h);
|
||
fail_unless (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_DISCONT));
|
||
fail_unless_equals_int (5, get_rtp_seq_num (out_buf));
|
||
gst_buffer_unref (out_buf);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) 4,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 2, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_reorder_of_non_equidistant_packets)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
gint latency_ms = 5;
|
||
GstClockID pending_id;
|
||
GstClockTime time;
|
||
gint seq, frame;
|
||
gint num_init_frames = 1;
|
||
const GstClockTime frame_dur = TEST_BUF_DURATION;
|
||
const guint32 frame_rtp_ts_dur = TEST_RTP_TS_DURATION;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
testclock = gst_harness_get_testclock (h);
|
||
g_object_set (h->element, "do-lost", TRUE, "latency", latency_ms, NULL);
|
||
|
||
for (frame = 0, seq = 0; frame < num_init_frames; frame++, seq += 2) {
|
||
/* Push a couple of packets with identical timestamp, typical for a video
|
||
* stream where one frame generates multiple packets. */
|
||
gst_harness_set_time (h, frame * frame_dur);
|
||
gst_harness_push (h, generate_test_buffer_full (frame * frame_dur,
|
||
seq, frame * frame_rtp_ts_dur));
|
||
gst_harness_push (h, generate_test_buffer_full (frame * frame_dur,
|
||
seq + 1, frame * frame_rtp_ts_dur));
|
||
|
||
if (frame == 0)
|
||
/* deadline for buffer 0 expires */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
}
|
||
|
||
/* Finally push the last frame reordered */
|
||
gst_harness_set_time (h, frame * frame_dur);
|
||
gst_harness_push (h, generate_test_buffer_full (frame * frame_dur,
|
||
seq + 1, frame * frame_rtp_ts_dur));
|
||
|
||
/* Check the scheduled lost timer. The expected arrival of this packet
|
||
* should be assumed to be the same as the last packet received since we
|
||
* don't know wether the missing packet belonged to this or previous
|
||
* frame. */
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &pending_id);
|
||
time = gst_clock_id_get_time (pending_id);
|
||
fail_unless_equals_int64 (time, frame * frame_dur + latency_ms * GST_MSECOND);
|
||
gst_clock_id_unref (pending_id);
|
||
|
||
/* And then missing packet arrives just in time */
|
||
gst_harness_set_time (h, time - 1);
|
||
gst_harness_push (h, generate_test_buffer_full (time - 1, seq,
|
||
frame * frame_rtp_ts_dur));
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_loss_equidistant_spacing_with_parameter_packets)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 5;
|
||
gint seq, frame;
|
||
gint num_init_frames = 10;
|
||
gint i;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
g_object_set (h->element, "do-lost", TRUE, "latency", latency_ms, NULL);
|
||
|
||
/* drop stream-start, caps, segment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
|
||
for (frame = 0, seq = 0; frame < num_init_frames; frame++, seq++) {
|
||
gst_harness_set_time (h, frame * TEST_BUF_DURATION);
|
||
gst_harness_push (h, generate_test_buffer_full (frame * TEST_BUF_DURATION,
|
||
seq, frame * TEST_RTP_TS_DURATION));
|
||
|
||
if (frame == 0)
|
||
/* deadline for buffer 0 expires */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
}
|
||
|
||
/* Push three packets with same rtptime, simulating parameter packets +
|
||
* frame. This should not disable equidistant mode as it is common for
|
||
* certain audio codecs. */
|
||
for (i = 0; i < 3; i++) {
|
||
gst_harness_set_time (h, frame * TEST_BUF_DURATION);
|
||
gst_harness_push (h, generate_test_buffer_full (frame * TEST_BUF_DURATION,
|
||
seq++, frame * TEST_RTP_TS_DURATION));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
}
|
||
frame++;
|
||
|
||
/* Finally push the last packet introducing a gap */
|
||
gst_harness_set_time (h, frame * TEST_BUF_DURATION);
|
||
gst_harness_push (h, generate_test_buffer_full (frame * TEST_BUF_DURATION,
|
||
seq + 1, frame * TEST_RTP_TS_DURATION));
|
||
|
||
/* given that the last known PTS (pkt#12) was 200ms and this last PTS (pkt#14) was 220ms,
|
||
and our current packet-spacing is 20ms, the lost-event gets a problem here:
|
||
If we use our packet-spacing, the last pushed packet (#12) should have
|
||
a duration of 20ms, meaning we would expect the missing packet (#13) to
|
||
have a PTS of 220ms. However, packet #14 comes in at 220ms, so what is
|
||
the best estimation for the missing packet here?
|
||
|
||
Given that we want to estimate the most optimistic PTS in order to give
|
||
the packet as many chances as possible to arrive, we end up with a PTS
|
||
of 220ms and a duration of 0, since that will be the most optimistic
|
||
placement given that it has to be before pkt #14.
|
||
*/
|
||
|
||
/* timeout the lost-event */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, seq, frame * TEST_BUF_DURATION, 0);
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
|
||
typedef struct
|
||
{
|
||
guint gap;
|
||
GstClockTime duration[3];
|
||
} ThreeLostPackets;
|
||
|
||
ThreeLostPackets no_fractional_lost_event_durations_input[] = {
|
||
{5, {60 * GST_MSECOND, 20 * GST_MSECOND, 20 * GST_MSECOND}},
|
||
{4, {40 * GST_MSECOND, 20 * GST_MSECOND, 20 * GST_MSECOND}},
|
||
{3, {20 * GST_MSECOND, 20 * GST_MSECOND, 20 * GST_MSECOND}},
|
||
{2, {20 * GST_MSECOND, 20 * GST_MSECOND, 0 * GST_MSECOND}},
|
||
{1, {20 * GST_MSECOND, 0 * GST_MSECOND, 0 * GST_MSECOND}},
|
||
{0, {0 * GST_MSECOND, 0 * GST_MSECOND, 0 * GST_MSECOND}},
|
||
};
|
||
|
||
/* This test looks after that fact that when we have equidistant
|
||
packetspacing, we try and keep that spacing for the lost events,
|
||
so we operate in "whole" packets.
|
||
*/
|
||
GST_START_TEST (test_no_fractional_lost_event_durations)
|
||
{
|
||
ThreeLostPackets *ctx = &no_fractional_lost_event_durations_input[__i__];
|
||
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstClockTime now;
|
||
guint latency_ms = 100;
|
||
guint16 seqnum, gap_seqnum;
|
||
GstClockTime pts;
|
||
GstClockTime duration;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
gap_seqnum = seqnum + ctx->gap;
|
||
|
||
now = gap_seqnum * TEST_BUF_DURATION;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (now,
|
||
seqnum + 3, gap_seqnum * TEST_RTP_TS_DURATION)));
|
||
|
||
pts = seqnum * TEST_BUF_DURATION;
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
/* check if the lost-event has expired, if not
|
||
crank to move the time ahead */
|
||
if (pts + latency_ms * GST_MSECOND > now)
|
||
gst_harness_crank_single_clock_wait (h);
|
||
duration = ctx->duration[0];
|
||
verify_lost_event (h, seqnum, pts, duration);
|
||
|
||
seqnum++;
|
||
pts += duration;
|
||
duration = ctx->duration[1];
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
if (pts + latency_ms * GST_MSECOND > now)
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, seqnum, pts, duration);
|
||
|
||
seqnum++;
|
||
pts += duration;
|
||
duration = ctx->duration[2];
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
if (pts + latency_ms * GST_MSECOND > now)
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, seqnum, pts, duration);
|
||
|
||
/* followed by the buffer */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
/* verify that we have pulled out all waiting buffers and events */
|
||
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_late_lost_with_same_pts)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstClockTime dts, now;
|
||
guint latency_ms = 40;
|
||
guint16 seqnum;
|
||
guint rtp_ts;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
dts = seqnum * TEST_BUF_DURATION;
|
||
rtp_ts = seqnum * TEST_RTP_TS_DURATION;
|
||
|
||
/* set the time on the clock one buffer-length after the
|
||
length of the jitterbuffer */
|
||
now = dts + latency_ms * GST_MSECOND + TEST_BUF_DURATION;
|
||
gst_test_clock_set_time (GST_TEST_CLOCK (GST_ELEMENT_CLOCK (h->element)),
|
||
now);
|
||
|
||
/* now two buffers arrive, same arrival time (in the past, must
|
||
have spent a lot of time from udpsrc to jitterbuffer!),
|
||
with the same rtptimestamp (typical of videobuffers),
|
||
with a gap in between them */
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (dts, seqnum, rtp_ts)));
|
||
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (dts, seqnum + 2, rtp_ts)));
|
||
|
||
/* the lost event is generated immediately since we are already
|
||
too late to wait for anything */
|
||
verify_lost_event (h, seqnum + 1, dts, 0);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* verify that we have pulled out all waiting buffers and events */
|
||
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
static void
|
||
gst_test_clock_set_time_and_process (GstTestClock * testclock,
|
||
GstClockTime time)
|
||
{
|
||
GstClockID id, tid;
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
gst_test_clock_set_time (testclock, time);
|
||
tid = gst_test_clock_process_next_clock_id (testclock);
|
||
g_assert (tid == id);
|
||
gst_clock_id_unref (tid);
|
||
gst_clock_id_unref (id);
|
||
}
|
||
|
||
GST_START_TEST (test_rtx_expected_next)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 200;
|
||
guint next_seqnum;
|
||
GstClockTime timeout;
|
||
gint rtx_delay_ms;
|
||
const GstClockTime rtx_retry_timeout_ms = 40;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
g_object_set (h->element, "do-retransmission", TRUE, NULL);
|
||
g_object_set (h->element, "rtx-retry-period", 120, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* At this point there is already existing a rtx-timer for @next_seqnum,
|
||
* that will have a timeout of the expected arrival-time for that seqnum,
|
||
* and a delay equal to 2*jitter==0 and 0.5*packet_spacing==10ms */
|
||
timeout = next_seqnum * TEST_BUF_DURATION;
|
||
rtx_delay_ms = TEST_BUF_MS / 2;
|
||
|
||
/* We crank the clock to time-out the next scheduled timer */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum, timeout, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
/* now we wait for the next timeout, all following timeouts 40ms in the
|
||
* future because this is rtx-retry-timeout */
|
||
rtx_delay_ms += rtx_retry_timeout_ms;
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum, timeout, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
/* And a third time... */
|
||
rtx_delay_ms += rtx_retry_timeout_ms;
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum, timeout, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
/* we should now receive a packet-lost-event for packet @next_seqnum */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, next_seqnum, timeout, TEST_BUF_DURATION);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_not_bursting_requests)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 200;
|
||
guint next_seqnum;
|
||
guint missing_seqnum;
|
||
GstClockTime now;
|
||
|
||
g_object_set (h->element,
|
||
"do-lost", TRUE,
|
||
"do-retransmission", TRUE,
|
||
"rtx-next-seqnum", FALSE, "rtx-max-retries", 3, NULL);
|
||
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
|
||
/* skip a packet and move the time for the next one
|
||
quite a bit forward */
|
||
missing_seqnum = next_seqnum;
|
||
next_seqnum++;
|
||
now += 150 * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
|
||
push_test_buffer_now (h, next_seqnum, next_seqnum * TEST_RTP_TS_DURATION,
|
||
FALSE);
|
||
|
||
/* note the delay here is 130. This is because we advanced the clock 150,
|
||
and 20 of those were the duration of the missing seqnum, so this
|
||
RTX event is in effect 130ms "late" compared to its ideal time */
|
||
verify_rtx_event (h, missing_seqnum,
|
||
missing_seqnum * TEST_BUF_DURATION, 130, TEST_BUF_DURATION);
|
||
|
||
/* verify we have not sent any other rtx events */
|
||
fail_unless_equals_int (0, gst_harness_upstream_events_in_queue (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_next_seqnum_disabled)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 200;
|
||
guint next_seqnum, missing_seqnum;
|
||
GstTestClock *testclock;
|
||
GstClockTime timeout, last_rtx_request;
|
||
gint rtx_delay_ms;
|
||
const GstClockTime rtx_retry_timeout_ms = 40;
|
||
|
||
testclock = gst_harness_get_testclock (h);
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
g_object_set (h->element, "do-retransmission", TRUE, NULL);
|
||
g_object_set (h->element, "rtx-retry-period", 120, NULL);
|
||
g_object_set (h->element, "rtx-next-seqnum", FALSE, NULL);
|
||
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* When rtx-next-seqnum is disabled there is no existing rtx-timer for
|
||
* @next_seqnum until there is a gap and it's missing. */
|
||
|
||
/* Check that we have no pending waits */
|
||
fail_unless_equals_int (0, gst_test_clock_peek_id_count (testclock));
|
||
|
||
/* Push next packet to create a gap and trigger rtx-timers */
|
||
missing_seqnum = next_seqnum;
|
||
next_seqnum += 1;
|
||
push_test_buffer (h, next_seqnum);
|
||
|
||
/* Now there should exist a rtx-timer for @next_seqnum, that will have a
|
||
* timeout of the expected arrival-time for that seqnum, and a delay equal
|
||
* to the elapsed time since the timeout and until now (which is the
|
||
* duration of one buffer, 20 ms). */
|
||
timeout = missing_seqnum * TEST_BUF_DURATION;
|
||
rtx_delay_ms = TEST_BUF_MS;
|
||
|
||
/* The first rtx-event is triggered immediately since the timeout + delay is
|
||
* less than "now" */
|
||
verify_rtx_event (h, missing_seqnum, timeout, rtx_delay_ms,
|
||
TEST_BUF_DURATION);
|
||
last_rtx_request = gst_clock_get_time (GST_CLOCK (testclock));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
missing_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* now we wait for the next timeout, all following timers timeout in 40ms
|
||
* increments because this is rtx-retry-timeout */
|
||
rtx_delay_ms += rtx_retry_timeout_ms;
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, missing_seqnum, timeout, rtx_delay_ms,
|
||
TEST_BUF_DURATION);
|
||
last_rtx_request = gst_clock_get_time (GST_CLOCK (testclock));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
missing_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* And a third time... */
|
||
rtx_delay_ms += rtx_retry_timeout_ms;
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, missing_seqnum, timeout, rtx_delay_ms,
|
||
TEST_BUF_DURATION);
|
||
last_rtx_request = gst_clock_get_time (GST_CLOCK (testclock));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
missing_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* we should now receive a packet-lost-event for packet @missing_seqnum */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, missing_seqnum, timeout, TEST_BUF_DURATION);
|
||
|
||
/* Finally pull out the next packet */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_two_missing)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 200;
|
||
guint next_seqnum;
|
||
GstClockTime last_rtx_request, now;
|
||
gint rtx_delay_ms_0 = TEST_BUF_MS / 2;
|
||
gint rtx_delay_ms_1 = TEST_BUF_MS;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
fail_unless_equals_int (11, next_seqnum);
|
||
|
||
/*
|
||
* The expected sequence of buffers is this:
|
||
* ____ ____ ____ ____
|
||
* ... | 10 | | 11 | | 12 | | 13 |
|
||
* –––– –––– –––– ––––
|
||
* 200ms 220ms 240ms 260ms
|
||
*
|
||
* But instead we get this:
|
||
* ____ _ _ _ _ ____
|
||
* ... | 10 | | | | | | 13 |
|
||
* –––– - - - - ––––
|
||
* 200ms 260ms
|
||
*
|
||
* Now it is important to note that the next thing that happens is that
|
||
* the RTX timeout for packet 11 will happen at time 230ms, so we crank
|
||
* the timer thread to advance the time to this:
|
||
*/
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, 11, 11 * TEST_BUF_DURATION,
|
||
rtx_delay_ms_0, TEST_BUF_DURATION);
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
11 * TEST_BUF_DURATION + rtx_delay_ms_0 * GST_MSECOND);
|
||
gst_harness_wait_for_clock_id_waits (h, 1, 60);
|
||
|
||
/* The next scheduled RTX for packet 11 is now at 230 + 40 = 270ms,
|
||
so the next thing that happens is that buffer 13 arrives in perfect time: */
|
||
now = 13 * TEST_BUF_DURATION;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h,
|
||
generate_test_buffer_full (now, 13, 13 * TEST_RTP_TS_DURATION)));
|
||
|
||
/*
|
||
*
|
||
* This will estimate the dts on the two missing packets to:
|
||
* ____ ____
|
||
* ... | 11 | | 12 | ...
|
||
* –––– ––––
|
||
* 220ms 240ms
|
||
*
|
||
* And given their regular interspacing of 20ms, it will schedule two RTX
|
||
* timers for them like so:
|
||
*
|
||
* ____ ____
|
||
* ... | 11 | | 12 | ...
|
||
* –––– ––––
|
||
* 230ms 250ms
|
||
*
|
||
* There are however two problems, packet 11 we have already sent one RTX for
|
||
* and its timeout is currently at 270ms, so we should not tamper with that,
|
||
* and as for packet 12, 250ms has already expired, so we now expect to see
|
||
* an rtx-event being sent for packet 12 immediately.
|
||
*
|
||
* Since the current time is 260 ms and packet 12 was expected at 240 ms,
|
||
* the delay of the rtx-event is 20 ms.
|
||
*/
|
||
verify_rtx_event (h, 12, 12 * TEST_BUF_DURATION,
|
||
rtx_delay_ms_1, TEST_BUF_DURATION);
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
12 * TEST_BUF_DURATION + rtx_delay_ms_1 * GST_MSECOND);
|
||
|
||
/* and another crank will see the second RTX event being sent for packet 11 */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
rtx_delay_ms_0 += 40;
|
||
verify_rtx_event (h, 11, 11 * TEST_BUF_DURATION,
|
||
rtx_delay_ms_0, TEST_BUF_DURATION);
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
11 * TEST_BUF_DURATION + rtx_delay_ms_0 * GST_MSECOND);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_buffer_arrives_just_in_time)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 5 * TEST_BUF_MS;
|
||
gint next_seqnum;
|
||
GstBuffer *buffer;
|
||
GstClockTime now, last_rtx_request;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"rtx-max-retries", 1, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Crank clock to send retransmission events requesting seqnum 6 which has
|
||
* not arrived yet. */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* seqnum 6 arrives just before it times out and is considered lost */
|
||
now = 200 * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, next_seqnum)));
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int (next_seqnum, get_rtp_seq_num (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 1,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 1.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) (now - last_rtx_request),
|
||
NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_buffer_arrives_too_late)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 5 * TEST_BUF_MS;
|
||
gint next_seqnum;
|
||
GstClockTime now, last_rtx_request;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"do-lost", TRUE, "rtx-max-retries", 1, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Crank clock to send retransmission events requesting seqnum 6 which has
|
||
* not arrived yet. */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* packet @next_seqnum is considered lost */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
/* packet @next_seqnum arrives too late */
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, next_seqnum)));
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1,
|
||
"num-late", G_TYPE_UINT64, (guint64) 1,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 1.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) (now - last_rtx_request),
|
||
NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_original_buffer_does_not_update_rtx_stats)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 100;
|
||
gint next_seqnum;
|
||
GstBuffer *buffer;
|
||
GstClockTime now, last_rtx_request;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"rtx-max-retries", 1, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
fail_unless_equals_int (6, next_seqnum);
|
||
|
||
/* Crank clock to send retransmission events requesting @next_seqnum which has
|
||
* not arrived yet. */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* make sure the wait has settled before moving on */
|
||
gst_harness_wait_for_clock_id_waits (h, 1, 1);
|
||
|
||
/* ORIGINAL seqnum 6 arrives just before it times out and is considered
|
||
* lost. */
|
||
now = 200 * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (now,
|
||
next_seqnum, next_seqnum * TEST_RTP_TS_DURATION)));
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int (next_seqnum, get_rtp_seq_num (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
/* due to the advance in time, we will now also have sent
|
||
an rtx-request for 7 */
|
||
next_seqnum++;
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, 60, TEST_BUF_DURATION);
|
||
|
||
/* The original buffer does not count in the RTX stats. */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 0.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) 0, NULL)));
|
||
|
||
/* Now the retransmitted packet arrives and stats should be updated. Note
|
||
* that the buffer arrives in time and should not be considered late, but
|
||
* a duplicate. */
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, 6)));
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 1.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) (now - last_rtx_request),
|
||
NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_duplicate_packet_updates_rtx_stats)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 100;
|
||
gint next_seqnum;
|
||
GstClockTime now, rtx_request_6, rtx_request_7;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
gint i;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
fail_unless_equals_int (6, next_seqnum);
|
||
|
||
/* Push packet 8 so that 6 and 7 is missing */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (8)));
|
||
|
||
/* Wait for NACKs on 6 and 7 */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, 6, 6 * TEST_BUF_DURATION,
|
||
rtx_delay_ms, TEST_BUF_DURATION);
|
||
rtx_request_6 = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (rtx_request_6,
|
||
6 * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h,
|
||
7, 7 * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
rtx_request_7 = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (rtx_request_7,
|
||
7 * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* Original packet 7 arrives */
|
||
now = 161 * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (now, 7, 7 * TEST_RTP_TS_DURATION)));
|
||
|
||
/* We're still waiting for packet 6, so 7 should not be pushed */
|
||
gst_harness_wait_for_clock_id_waits (h, 1, 60);
|
||
fail_unless_equals_int (gst_harness_buffers_in_queue (h), 0);
|
||
|
||
/* The original buffer does not count in the RTX stats. */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 0.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) 0, NULL)));
|
||
|
||
/* Push RTX packet 7. Should be dropped as duplicate but update RTX stats. */
|
||
now = 162 * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, 7)));
|
||
gst_harness_wait_for_clock_id_waits (h, 1, 60);
|
||
fail_unless_equals_int (gst_harness_buffers_in_queue (h), 0);
|
||
|
||
/* Check RTX stats with updated num-duplicates and rtx-rtt fields */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 1.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) (now - rtx_request_7),
|
||
NULL)));
|
||
|
||
/* RTX packet 6 arrives, both 6, 7 and 8 is ready to be pulled */
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, 6)));
|
||
|
||
for (i = 6; i <= 8; i++) {
|
||
GstBuffer *buf = gst_harness_pull (h);
|
||
fail_unless_equals_int (i, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
}
|
||
|
||
/* RTX stats is updated with success count increased. */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 3,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 1.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64)
|
||
/* Use the rtx-rtt formula. Can be subject to change though. */
|
||
((now - rtx_request_6) + 47 * (now - rtx_request_7)) / 48,
|
||
NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_buffer_arrives_after_lost_updates_rtx_stats)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 100;
|
||
gint next_seqnum;
|
||
GstClockTime now, last_rtx_request;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"do-lost", TRUE, "rtx-max-retries", 1, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Crank clock to send retransmission events requesting seqnum 6 which has
|
||
* not arrived yet. */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* seqnum 6 is considered lost */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
/* seqnum 6 arrives too late */
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, next_seqnum)));
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 1,
|
||
"num-late", G_TYPE_UINT64, (guint64) 1,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 1.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) (now - last_rtx_request),
|
||
NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_rtt_larger_than_retry_timeout)
|
||
{
|
||
/* When RTT is larger than retry period we will send two or more requests
|
||
* before receiving any retransmission packets */
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 100;
|
||
gint next_seqnum;
|
||
gint rtx_retry_timeout_ms = 20;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
gint rtt = rtx_retry_timeout_ms * GST_MSECOND + 1;
|
||
GstClockTime now, first_request, second_request;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"rtx-retry-timeout", rtx_retry_timeout_ms, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Wait for first NACK on 6 */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
first_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (first_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* Packet @next_seqnum + 1 arrives in time (so that we avoid its EXPECTED
|
||
* timers to interfer with our test) */
|
||
push_test_buffer (h, next_seqnum + 1);
|
||
|
||
/* Simulating RTT > rtx-retry-timeout, we send a new NACK before receiving
|
||
* the RTX packet. Wait for second NACK on @next_seqnum */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
rtx_delay_ms += rtx_retry_timeout_ms;
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
second_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (second_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* The first retransmitted packet arrives */
|
||
now = first_request + rtt;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, next_seqnum)));
|
||
|
||
/* Pull packets @next_seqnum and @next_seqnum + 1 */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* Stats should be updated. Note that RTT is not updated since we cannot be
|
||
* sure whether the RTX packet is in response to the first or second NACK. */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 2,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 2.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) 0, NULL)));
|
||
|
||
/* Packet @next_seqnum + 2 arrives in time */
|
||
push_test_buffer (h, next_seqnum + 2);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* Now the second retransmitted packet arrives */
|
||
now = second_request + rtt;
|
||
gst_harness_set_time (h, now);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_rtx (now, next_seqnum)));
|
||
|
||
/* The stats is updated with the correct RTT. */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum + 3,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"num-late", G_TYPE_UINT64, (guint64) 0,
|
||
"num-duplicates", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2,
|
||
"rtx-success-count", G_TYPE_UINT64, (guint64) 1,
|
||
"rtx-per-packet", G_TYPE_DOUBLE, 2.0,
|
||
"rtx-rtt", G_TYPE_UINT64, (guint64) rtt, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_no_request_if_time_past_retry_period)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
const gint latency_ms = 200;
|
||
const gint retry_period_ms = 120;
|
||
GstTestClock *testclock;
|
||
GstClockID pending_id;
|
||
GstClockTime time;
|
||
gint i;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
testclock = gst_harness_get_testclock (h);
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, NULL);
|
||
g_object_set (h->element, "do-retransmission", TRUE, NULL);
|
||
g_object_set (h->element, "latency", latency_ms, NULL);
|
||
g_object_set (h->element, "rtx-retry-period", retry_period_ms, NULL);
|
||
|
||
/* push the first couple of buffers */
|
||
push_test_buffer (h, 0);
|
||
push_test_buffer (h, 1);
|
||
|
||
/* drop reconfigure event */
|
||
gst_event_unref (gst_harness_pull_upstream_event (h));
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
|
||
/* Wait for the first EXPECTED timer to be scheduled */
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &pending_id);
|
||
time = gst_clock_id_get_time (pending_id);
|
||
gst_clock_id_unref (pending_id);
|
||
fail_unless_equals_int64 (time, 2 * TEST_BUF_DURATION + 10 * GST_MSECOND);
|
||
|
||
/* Let the first EXPECTED timer time out and be sent. However, set the 'now'
|
||
* time to be past the retry-period simulating that the jitterbuffer has too
|
||
* much to do and is not able to process all timers in real-time. In this
|
||
* case the jitterbuffer should not schedule a new EXPECTED timer as that
|
||
* would just make matters worse (more unnecessary processing of a request
|
||
* that is already too late to be valuable). In practice this typically
|
||
* happens for high loss networks with low RTT. */
|
||
gst_test_clock_set_time_and_process (testclock,
|
||
2 * TEST_BUF_DURATION + retry_period_ms * GST_MSECOND + 1);
|
||
|
||
/* Verify the event. It could be argued that this request is already too
|
||
* late and unnecessary. However, in order to keep things simple (for now)
|
||
* we just keep the already scehduled EXPECTED timer, but refrain from
|
||
* scheduled another EXPECTED timer */
|
||
verify_rtx_event (h, 2, 2 * TEST_BUF_DURATION, 120, TEST_BUF_DURATION);
|
||
|
||
/* "crank" to reach the DEADLINE for packet 0 */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
fail_unless_equals_int (0, gst_harness_upstream_events_in_queue (h));
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
/* "crank" to time out the LOST event */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_lost_event (h, 2, 2 * TEST_BUF_DURATION, TEST_BUF_DURATION);
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_same_delay_and_retry_timeout)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 5 * TEST_BUF_MS;
|
||
gint next_seqnum;
|
||
gint rtx_delay_ms = 20;
|
||
GstClockTime last_rtx_request;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"rtx-max-retries", 3, "rtx-delay", rtx_delay_ms,
|
||
"rtx-retry-timeout", rtx_delay_ms, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Crank clock to send retransmission events requesting seqnum 6 which has
|
||
* not arrived yet. */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
/* first rtx for packet @next_seqnum should arrive at the right time */
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * GST_MSECOND);
|
||
|
||
/* verify we have pulled out all rtx-events */
|
||
fail_unless_equals_int (0, gst_harness_upstream_events_in_queue (h));
|
||
|
||
/* now crank to get the second attempt at packet @next_seqnum */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms * 2, TEST_BUF_DURATION);
|
||
|
||
/* second rtx for seqnum 6 should arrive at 140 + 20ms */
|
||
last_rtx_request = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
fail_unless_equals_int64 (last_rtx_request,
|
||
next_seqnum * TEST_BUF_DURATION + rtx_delay_ms * 2 * GST_MSECOND);
|
||
|
||
/* verify we have pulled out all rtx-events */
|
||
fail_unless_equals_int (0, gst_harness_upstream_events_in_queue (h));
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) next_seqnum,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 2, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_with_backwards_rtptime)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 40;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE, NULL);
|
||
construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/*
|
||
* For video using B-frames, an expected sequence
|
||
* could be like this:
|
||
* (I = I-frame, P = P-frame, B = B-frame)
|
||
* ___ ___ ___
|
||
* ... | 3 | | 4 | | 5 |
|
||
* ––– ––– –––
|
||
* rtptime: 3(I) 5(P) 4(B)
|
||
* arrival(dts): 3 5 5
|
||
*
|
||
* Notice here that packet 5 (the B frame) make
|
||
* the rtptime go backwards.
|
||
*/
|
||
|
||
/* seqnum 3, arriving at time 3 with rtptime 3 */
|
||
push_test_buffer (h, 3);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* seqnum 4, arriving at time 5 with rtptime 5 */
|
||
gst_harness_push (h, generate_test_buffer_full (5 * TEST_BUF_DURATION,
|
||
4, 5 * TEST_RTP_TS_DURATION));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* seqnum 5, arriving at time 5 with rtptime 4 */
|
||
gst_harness_push (h, generate_test_buffer_full (5 * TEST_BUF_DURATION,
|
||
5, 4 * TEST_RTP_TS_DURATION));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* crank to time-out the rtx-request for seqnum 6, the point here
|
||
* being that the backwards rtptime did not mess up the timeout for
|
||
* the rtx event.
|
||
*
|
||
* Note: the jitterbuffer no longer update early timers, as a result
|
||
* we need to advance the clock to the expected point
|
||
*/
|
||
gst_harness_wait_for_clock_id_waits (h, 1, 1);
|
||
gst_harness_set_time (h, 6 * TEST_BUF_DURATION + 15 * GST_MSECOND);
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, 6, 5 * TEST_BUF_DURATION + 15 * GST_MSECOND,
|
||
20, 35 * GST_MSECOND);
|
||
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) 6,
|
||
"rtx-count", G_TYPE_UINT64, (guint64) 1,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 0, NULL)));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_timer_reuse)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 5 * TEST_BUF_MS;
|
||
gint rtx_delay_ms = TEST_BUF_MS / 2;
|
||
guint next_seqnum;
|
||
|
||
g_object_set (h->element, "do-retransmission", TRUE,
|
||
"do-lost", TRUE, "rtx-max-retries", 1, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* crank to timeout the only rtx-request, and the timer will
|
||
* now reschedule as a lost-timer internally */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
/* but now buffer 6 arrives, and this should now reuse the lost-timer
|
||
* for 6, as an expected-timer for 7 */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (next_seqnum)));
|
||
|
||
/* now crank to timeout the expected-timer for 7 and verify */
|
||
next_seqnum++;
|
||
gst_harness_crank_single_clock_wait (h);
|
||
verify_rtx_event (h, next_seqnum,
|
||
next_seqnum * TEST_BUF_DURATION, rtx_delay_ms, TEST_BUF_DURATION);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
|
||
static void
|
||
start_test_rtx_large_packet_spacing (GstHarness * h,
|
||
gint latency_ms, gint frame_dur_ms, gint rtx_rtt_ms,
|
||
guint16 * dst_lost_seq, GstClockTime * dst_now)
|
||
{
|
||
gint i, seq, frame;
|
||
GstBuffer *buffer;
|
||
GstClockTime now, lost_packet_time;
|
||
GstClockTime frame_dur = frame_dur_ms * GST_MSECOND;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
g_object_set (h->element,
|
||
"do-lost", TRUE, "latency", latency_ms, "do-retransmission", TRUE, NULL);
|
||
|
||
/* Pushing 2 frames @frame_dur_ms ms apart from each other to initialize
|
||
* packet_spacing and avg jitter */
|
||
for (frame = 0, seq = 0, now = 0; frame < 2;
|
||
frame++, seq += 2, now += frame_dur) {
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq + 1,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
|
||
if (frame == 0)
|
||
/* deadline for buffer 0 expires */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
}
|
||
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
/* drop reconfigure event */
|
||
gst_event_unref (gst_harness_pull_upstream_event (h));
|
||
|
||
/* The first packet (#@seq) of the 3rd frame is lost */
|
||
lost_packet_time = now;
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq + 1,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
|
||
/* RTX delay calculated as:
|
||
* MIN(rtx_delay_max, MAX(2*avg_jitter, 0.5 * packet_spacing)).
|
||
* Where rtx_delay_max:
|
||
* rtx_delay_max = latency - rtx_rtt.
|
||
* We have not used RTX yet, so rtx_rtt = 0, rtx_delay_max = latency.
|
||
* Thus we expect the first RTX event to be sent in @latency_ms ms */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
fail_unless_equals_int64 (now + latency_ms * GST_MSECOND,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
verify_rtx_event (h, seq, now, latency_ms, frame_dur);
|
||
verify_lost_event (h, seq, now, 0);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
now += latency_ms * GST_MSECOND;
|
||
|
||
/* Sending lost packet as RTX to initialize rtx_rtt */
|
||
now += rtx_rtt_ms * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
buffer =
|
||
generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (lost_packet_time));
|
||
GST_BUFFER_FLAG_SET (buffer, GST_RTP_BUFFER_FLAG_RETRANSMISSION);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buffer));
|
||
|
||
/* No buffers should be pushed through, as lost packet arrived too late */
|
||
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
|
||
|
||
seq += 2;
|
||
frame += 1;
|
||
now = frame * frame_dur;
|
||
gst_harness_set_time (h, now);
|
||
|
||
/* The first packet (#@seq) of the 4th frame is lost */
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq + 1,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
*dst_lost_seq = seq;
|
||
*dst_now = now;
|
||
}
|
||
|
||
GST_START_TEST (test_rtx_large_packet_spacing_and_small_rtt)
|
||
{
|
||
GstClockTime now;
|
||
guint16 lost_seq;
|
||
gint latency_ms = 20;
|
||
gint frame_dur_ms = 50;
|
||
gint rtx_rtt_ms = 5;
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
|
||
start_test_rtx_large_packet_spacing (h, latency_ms, frame_dur_ms, rtx_rtt_ms,
|
||
&lost_seq, &now);
|
||
|
||
/* With small rtx_rtt, RTX event expected to be sent in
|
||
(@latency_ms - @rtx_rtt_ms) ms */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
fail_unless_equals_int64 (now + (latency_ms - rtx_rtt_ms) * GST_MSECOND,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
verify_rtx_event (h, lost_seq, now, (latency_ms - rtx_rtt_ms),
|
||
frame_dur_ms * GST_MSECOND);
|
||
|
||
/* After @latency ms the packet should be considered lost */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
fail_unless_equals_int64 (now + latency_ms * GST_MSECOND,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
verify_lost_event (h, lost_seq, now, 0);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_large_packet_spacing_and_large_rtt)
|
||
{
|
||
GstClockTime now;
|
||
guint16 lost_seq;
|
||
gint latency_ms = 20;
|
||
gint frame_dur_ms = 50;
|
||
gint rtx_rtt_ms = 30;
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
|
||
start_test_rtx_large_packet_spacing (h, latency_ms, frame_dur_ms, rtx_rtt_ms,
|
||
&lost_seq, &now);
|
||
|
||
/* With large rtx_rtt, RTX event expected to be sent in @latency_ms ms.
|
||
The buffer considered lost. */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
fail_unless_equals_int64 (now + latency_ms * GST_MSECOND,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
verify_rtx_event (h, lost_seq, now, latency_ms, frame_dur_ms * GST_MSECOND);
|
||
verify_lost_event (h, lost_seq, now, 0);
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_rtx_large_packet_spacing_does_not_reset_jitterbuffer)
|
||
{
|
||
gint latency_ms = 20;
|
||
gint frame_dur_ms = 50;
|
||
gint rtx_rtt_ms = 5;
|
||
gint i, seq;
|
||
GstBuffer *buffer;
|
||
GstClockTime now, lost_packet_time;
|
||
GstClockTime frame_dur = frame_dur_ms * GST_MSECOND;
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
g_object_set (h->element,
|
||
"do-lost", TRUE, "latency", latency_ms, "do-retransmission", TRUE, NULL);
|
||
|
||
/* Pushing 2 frames @frame_dur_ms ms apart from each other to initialize
|
||
* packet_spacing and avg jitter */
|
||
for (seq = 0, now = 0; seq < 2; ++seq, now += frame_dur) {
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
if (seq == 0)
|
||
gst_harness_crank_single_clock_wait (h);
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now, GST_BUFFER_PTS (buffer));
|
||
gst_buffer_unref (buffer);
|
||
}
|
||
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
/* drop reconfigure event */
|
||
gst_event_unref (gst_harness_pull_upstream_event (h));
|
||
|
||
/* Waiting for the RTX timer of packet #2 to timeout */
|
||
lost_packet_time = now;
|
||
gst_harness_crank_single_clock_wait (h);
|
||
fail_unless_equals_int64 (now + latency_ms * GST_MSECOND,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
verify_rtx_event (h, seq, now, latency_ms, frame_dur);
|
||
verify_lost_event (h, seq, now, frame_dur);
|
||
now += latency_ms * GST_MSECOND;
|
||
|
||
/* Pushing packet #2 as RTX */
|
||
now += rtx_rtt_ms * GST_MSECOND;
|
||
gst_harness_set_time (h, now);
|
||
buffer =
|
||
generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (lost_packet_time));
|
||
GST_BUFFER_FLAG_SET (buffer, GST_RTP_BUFFER_FLAG_RETRANSMISSION);
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buffer));
|
||
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
|
||
|
||
/* Packet #3 should have PTS not affected by clock skew logic */
|
||
seq += 1;
|
||
now = seq * frame_dur;
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now, GST_BUFFER_PTS (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_minor_reorder_does_not_skew)
|
||
{
|
||
gint latency_ms = 20;
|
||
gint frame_dur_ms = 50;
|
||
guint rtx_min_delay_ms = 110;
|
||
gint hickup_ms = 2;
|
||
gint i, seq;
|
||
GstBuffer *buffer;
|
||
GstClockTime now;
|
||
GstClockTime frame_dur = frame_dur_ms * GST_MSECOND;
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
g_object_set (h->element,
|
||
"do-lost", TRUE, "latency", latency_ms, "do-retransmission", TRUE,
|
||
"rtx-min-delay", rtx_min_delay_ms, NULL);
|
||
|
||
/* Pushing 2 frames @frame_dur_ms ms apart from each other to initialize
|
||
* packet_spacing and avg jitter */
|
||
for (seq = 0, now = 0; seq < 2; ++seq, now += frame_dur) {
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
if (seq == 0)
|
||
gst_harness_crank_single_clock_wait (h);
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now, GST_BUFFER_PTS (buffer));
|
||
gst_buffer_unref (buffer);
|
||
}
|
||
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
/* drop reconfigure event */
|
||
gst_event_unref (gst_harness_pull_upstream_event (h));
|
||
|
||
/* Pushing packet #4 before #3, shortly after #3 would have arrived normally */
|
||
gst_harness_set_time (h, now + hickup_ms * GST_MSECOND);
|
||
gst_harness_push (h, generate_test_buffer_full (now + hickup_ms * GST_MSECOND,
|
||
seq + 1, AS_TEST_BUF_RTP_TIME (now + frame_dur)));
|
||
|
||
/* Pushing packet #3 after #4 when #4 would have normally arrived */
|
||
gst_harness_set_time (h, now + frame_dur);
|
||
gst_harness_push (h, generate_test_buffer_full (now + frame_dur, seq,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
|
||
/* Pulling should be retrieving #3 first */
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now, GST_BUFFER_PTS (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
/* Pulling should be retrieving #4 second */
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now + frame_dur, GST_BUFFER_PTS (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
now += 2 * frame_dur;
|
||
seq += 2;
|
||
|
||
/* Pushing packet #5 normal again */
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (now)));
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now, GST_BUFFER_PTS (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
seq++;
|
||
now += frame_dur;
|
||
|
||
/* Pushing packet #6 half a frame early to trigger clock skew */
|
||
gst_harness_set_time (h, now);
|
||
gst_harness_push (h, generate_test_buffer_full (now, seq,
|
||
AS_TEST_BUF_RTP_TIME (now + frame_dur / 2)));
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless (now + frame_dur / 2 > GST_BUFFER_PTS (buffer),
|
||
"pts should have been adjusted due to clock skew");
|
||
gst_buffer_unref (buffer);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_deadline_ts_offset)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
GstClockID id;
|
||
const gint jb_latency_ms = 10;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
testclock = gst_harness_get_testclock (h);
|
||
|
||
g_object_set (h->element, "latency", jb_latency_ms, NULL);
|
||
|
||
/* push the first buffer in */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (0)));
|
||
|
||
/* wait_next_timeout() syncs on the deadline timer */
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
fail_unless_equals_uint64 (jb_latency_ms * GST_MSECOND,
|
||
gst_clock_id_get_time (id));
|
||
gst_clock_id_unref (id);
|
||
|
||
/* add ts-offset while waiting */
|
||
g_object_set (h->element, "ts-offset", 20 * GST_MSECOND, NULL);
|
||
|
||
gst_test_clock_set_time_and_process (testclock, jb_latency_ms * GST_MSECOND);
|
||
|
||
/* wait_next_timeout() syncs on the new deadline timer */
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
fail_unless_equals_uint64 ((20 + jb_latency_ms) * GST_MSECOND,
|
||
gst_clock_id_get_time (id));
|
||
gst_clock_id_unref (id);
|
||
|
||
/* now make deadline timer timeout */
|
||
gst_test_clock_set_time_and_process (testclock,
|
||
(20 + jb_latency_ms) * GST_MSECOND);
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_deadline_ts_offset_overflow)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
GstClockID id;
|
||
const gint jb_latency_ms = 10;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
testclock = gst_harness_get_testclock (h);
|
||
|
||
g_object_set (h->element, "latency", jb_latency_ms, NULL);
|
||
|
||
/* push the first buffer in */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer (0)));
|
||
|
||
/* wait_next_timeout() syncs on the deadline timer */
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
fail_unless_equals_uint64 (jb_latency_ms * GST_MSECOND,
|
||
gst_clock_id_get_time (id));
|
||
gst_clock_id_unref (id);
|
||
|
||
/* add ts-offset while waiting, this reschedules the deadline to a negative time */
|
||
g_object_set (h->element, "ts-offset", -20 * GST_MSECOND, NULL);
|
||
|
||
/* wait_next_timeout() syncs on the new deadline timer, which is scheduled
|
||
* to the jitterbuffer latency due to being in the past */
|
||
gst_test_clock_wait_for_next_pending_id (testclock, &id);
|
||
fail_unless_equals_uint64 (jb_latency_ms * GST_MSECOND,
|
||
gst_clock_id_get_time (id));
|
||
gst_clock_id_unref (id);
|
||
|
||
gst_test_clock_set_time_and_process (testclock, jb_latency_ms * GST_MSECOND);
|
||
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_big_gap_seqnum)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
const gint num_consecutive = 5;
|
||
const guint gap = 20000;
|
||
gint i;
|
||
guint seqnum_org;
|
||
GstClockTime dts_base;
|
||
guint seqnum_base;
|
||
guint32 rtpts_base;
|
||
GstClockTime expected_ts;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, "do-retransmission", TRUE, NULL);
|
||
seqnum_org = construct_deterministic_initial_state (h, 100);
|
||
|
||
/* a sudden jump in sequence-numbers (and rtptime), but packets keep arriving
|
||
at the same pace */
|
||
dts_base = seqnum_org * TEST_BUF_DURATION;
|
||
seqnum_base = seqnum_org + gap;
|
||
rtpts_base = seqnum_base * TEST_RTP_TS_DURATION;
|
||
|
||
for (i = 0; i < num_consecutive; i++) {
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (dts_base + i * TEST_BUF_DURATION,
|
||
seqnum_base + i, rtpts_base + i * TEST_RTP_TS_DURATION)));
|
||
}
|
||
|
||
for (i = 0; i < num_consecutive; i++) {
|
||
GstBuffer *buf = gst_harness_pull (h);
|
||
guint expected_seqnum = seqnum_base + i;
|
||
fail_unless_equals_int (expected_seqnum, get_rtp_seq_num (buf));
|
||
|
||
expected_ts = dts_base + i * TEST_BUF_DURATION;
|
||
fail_unless_equals_int (expected_ts, GST_BUFFER_PTS (buf));
|
||
gst_buffer_unref (buf);
|
||
}
|
||
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_big_gap_arrival_time)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
const gint num_consecutive = 5;
|
||
const guint gap = 20000;
|
||
gint i;
|
||
guint seqnum_org;
|
||
GstClockTime dts_base;
|
||
guint seqnum_base;
|
||
guint32 rtpts_base;
|
||
GstClockTime expected_ts;
|
||
|
||
g_object_set (h->element, "do-lost", TRUE, "do-retransmission", TRUE, NULL);
|
||
seqnum_org = construct_deterministic_initial_state (h, 100);
|
||
|
||
/* packets are being held back on the wire, then continues */
|
||
dts_base = (seqnum_org + gap) * TEST_BUF_DURATION;
|
||
seqnum_base = seqnum_org;
|
||
rtpts_base = seqnum_base * TEST_RTP_TS_DURATION;
|
||
|
||
for (i = 0; i < num_consecutive; i++) {
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (dts_base + i * TEST_BUF_DURATION,
|
||
seqnum_base + i, rtpts_base + i * TEST_RTP_TS_DURATION)));
|
||
}
|
||
|
||
for (i = 0; i < num_consecutive; i++) {
|
||
GstBuffer *buf = gst_harness_pull (h);
|
||
guint expected_seqnum = seqnum_base + i;
|
||
fail_unless_equals_int (expected_seqnum, get_rtp_seq_num (buf));
|
||
|
||
expected_ts = dts_base + i * TEST_BUF_DURATION;
|
||
fail_unless_equals_int (expected_ts, GST_BUFFER_PTS (buf));
|
||
gst_buffer_unref (buf);
|
||
}
|
||
|
||
fail_unless_equals_int (0, gst_harness_events_in_queue (h));
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
typedef struct
|
||
{
|
||
guint seqnum_offset;
|
||
guint late_buffer;
|
||
} TestLateArrivalInput;
|
||
|
||
static const TestLateArrivalInput
|
||
test_considered_lost_packet_in_large_gap_arrives_input[] = {
|
||
{0, 1}, {0, 2}, {65535, 1}, {65535, 2}, {65534, 1}, {65534, 2}
|
||
};
|
||
|
||
GST_START_TEST (test_considered_lost_packet_in_large_gap_arrives)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstTestClock *testclock;
|
||
GstBuffer *buffer;
|
||
gint jb_latency_ms = 20;
|
||
const TestLateArrivalInput *test_input =
|
||
&test_considered_lost_packet_in_large_gap_arrives_input[__i__];
|
||
guint seq_offset = test_input->seqnum_offset;
|
||
guint late_buffer = test_input->late_buffer;
|
||
gint i;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
testclock = gst_harness_get_testclock (h);
|
||
g_object_set (h->element, "do-lost", TRUE, "latency", jb_latency_ms, NULL);
|
||
|
||
/* first push buffer 0 */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer_full (0 * TEST_BUF_DURATION,
|
||
0 + seq_offset, 0 * TEST_RTP_TS_DURATION)));
|
||
fail_unless (gst_harness_crank_single_clock_wait (h));
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* drop GstEventStreamStart & GstEventCaps & GstEventSegment */
|
||
for (i = 0; i < 3; i++)
|
||
gst_event_unref (gst_harness_pull_event (h));
|
||
|
||
/* hop over 3 packets, and push buffer 4 (gap of 3) */
|
||
gst_harness_set_time (h, 4 * TEST_BUF_DURATION);
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h, generate_test_buffer_full (4 * TEST_BUF_DURATION,
|
||
4 + seq_offset, 4 * TEST_RTP_TS_DURATION)));
|
||
|
||
/* we get a "bundled" lost-event for the 2 packets now already too late */
|
||
verify_lost_event (h, 1 + seq_offset, 1 * TEST_BUF_DURATION,
|
||
2 * TEST_BUF_DURATION);
|
||
|
||
/* and another one for buffer 3 */
|
||
verify_lost_event (h, 3 + seq_offset, 3 * TEST_BUF_DURATION,
|
||
1 * TEST_BUF_DURATION);
|
||
|
||
/* A late buffer arrives */
|
||
fail_unless_equals_int (GST_FLOW_OK,
|
||
gst_harness_push (h,
|
||
generate_test_buffer_full (late_buffer * TEST_BUF_DURATION,
|
||
late_buffer + seq_offset, late_buffer * TEST_RTP_TS_DURATION)));
|
||
|
||
/* buffer 4 is pushed as normal */
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int ((4 + seq_offset) & 0xffff, get_rtp_seq_num (buffer));
|
||
gst_buffer_unref (buffer);
|
||
|
||
/* we have lost 3, and one of them arrived eventually, but too late */
|
||
fail_unless (verify_jb_stats (h->element,
|
||
gst_structure_new ("application/x-rtp-jitterbuffer-stats",
|
||
"num-pushed", G_TYPE_UINT64, (guint64) 2,
|
||
"num-lost", G_TYPE_UINT64, (guint64) 3,
|
||
"num-late", G_TYPE_UINT64, (guint64) 1, NULL)));
|
||
|
||
gst_object_unref (testclock);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_performance)
|
||
{
|
||
GstHarness *h =
|
||
gst_harness_new_parse
|
||
("rtpjitterbuffer do-lost=1 do-retransmission=1 latency=1000");
|
||
GTimer *timer = g_timer_new ();
|
||
const gdouble test_duration = 2.0;
|
||
guint buffers_pushed = 0;
|
||
guint buffers_received;
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
gst_harness_use_systemclock (h);
|
||
|
||
while (g_timer_elapsed (timer, NULL) < test_duration) {
|
||
/* Simulate 1ms packets */
|
||
guint n = buffers_pushed * 2; // every packet also produces a gap
|
||
guint16 seqnum = n & 0xffff;
|
||
guint32 rtp_ts = n * 8;
|
||
GstClockTime dts = n * GST_MSECOND;
|
||
gst_harness_push (h, generate_test_buffer_full (dts, seqnum, rtp_ts));
|
||
buffers_pushed++;
|
||
g_usleep (G_USEC_PER_SEC / 10000);
|
||
}
|
||
g_timer_destroy (timer);
|
||
|
||
buffers_received = gst_harness_buffers_received (h);
|
||
GST_INFO ("Pushed %d, received %d (%.1f%%)", buffers_pushed, buffers_received,
|
||
100.0 * buffers_received / buffers_pushed);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_fill_queue)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
const gint num_consecutive = 40000;
|
||
GstBuffer *buf;
|
||
gint i;
|
||
|
||
gst_harness_use_testclock (h);
|
||
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
|
||
gst_harness_play (h);
|
||
|
||
gst_harness_push (h, generate_test_buffer (1000));
|
||
/* Skip 1001 */
|
||
for (i = 2; i < num_consecutive; i++)
|
||
gst_harness_push (h, generate_test_buffer (1000 + i));
|
||
|
||
buf = gst_harness_pull (h);
|
||
fail_unless_equals_int (1000, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
/* 1001 is skipped */
|
||
for (i = 2; i < num_consecutive; i++) {
|
||
GstBuffer *buf = gst_harness_pull (h);
|
||
fail_unless_equals_int (1000 + i, get_rtp_seq_num (buf));
|
||
gst_buffer_unref (buf);
|
||
}
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
typedef struct
|
||
{
|
||
gint64 dts_skew;
|
||
gint16 seqnum_skew;
|
||
} RtxSkewCtx;
|
||
|
||
static const RtxSkewCtx rtx_does_not_affect_pts_calculation_input[] = {
|
||
{0, 0},
|
||
{20 * GST_MSECOND, -100},
|
||
{20 * GST_MSECOND, 100},
|
||
{-10 * GST_MSECOND, 1},
|
||
{100 * GST_MSECOND, 0},
|
||
};
|
||
|
||
GST_START_TEST (test_rtx_does_not_affect_pts_calculation)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
GstBuffer *buffer;
|
||
guint next_seqnum;
|
||
guint rtx_seqnum;
|
||
GstClockTime now;
|
||
const RtxSkewCtx *ctx = &rtx_does_not_affect_pts_calculation_input[__i__];
|
||
|
||
/* set up a deterministic state and take the time on the clock */
|
||
g_object_set (h->element, "do-retransmission", TRUE, "do-lost", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, 3000);
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
|
||
/* push in a "bad" RTX buffer, arriving at various times / seqnums */
|
||
rtx_seqnum = next_seqnum + ctx->seqnum_skew;
|
||
buffer = generate_test_buffer_full (now + ctx->dts_skew, rtx_seqnum,
|
||
rtx_seqnum * TEST_RTP_TS_DURATION);
|
||
GST_BUFFER_FLAG_SET (buffer, GST_RTP_BUFFER_FLAG_RETRANSMISSION);
|
||
gst_harness_push (h, buffer);
|
||
|
||
/* now push in the next regular buffer at its ideal time, and verify the
|
||
rogue RTX-buffer did not mess things up */
|
||
push_test_buffer (h, next_seqnum);
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
buffer = gst_harness_pull (h);
|
||
fail_unless_equals_int64 (now, GST_BUFFER_PTS (buffer));
|
||
|
||
gst_buffer_unref (buffer);
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_dont_drop_packet_based_on_skew)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
guint base_seqnum;
|
||
GstClockTime now;
|
||
guint i;
|
||
|
||
/* set up a deterministic state and take the time on the clock */
|
||
g_object_set (h->element, "do-retransmission", TRUE, "do-lost", TRUE, NULL);
|
||
base_seqnum = construct_deterministic_initial_state (h, 20);
|
||
now = gst_clock_get_time (GST_ELEMENT_CLOCK (h->element));
|
||
|
||
/* and after a delay of 50ms... */
|
||
now += GST_MSECOND * 50;
|
||
gst_test_clock_set_time (GST_TEST_CLOCK (GST_ELEMENT_CLOCK (h->element)),
|
||
now);
|
||
|
||
/* ..two more buffers arrive in perfect order */
|
||
for (i = 0; i < 2; i++) {
|
||
gst_harness_push (h, generate_test_buffer_full (now + i * GST_MSECOND * 20,
|
||
base_seqnum + i, (base_seqnum + i) * TEST_RTP_TS_DURATION));
|
||
}
|
||
|
||
/* verify we did not drop any of them */
|
||
for (i = 0; i < 2; i++) {
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
}
|
||
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
static gboolean
|
||
check_drop_message (GstMessage * drop_msg, const char *reason_check,
|
||
guint seqnum_check, guint num_msg)
|
||
{
|
||
|
||
const GstStructure *s = gst_message_get_structure (drop_msg);
|
||
const gchar *reason_str;
|
||
GstClockTime timestamp;
|
||
guint seqnum;
|
||
guint num_too_late;
|
||
guint num_drop_on_latency;
|
||
|
||
guint num_too_late_check = 0;
|
||
guint num_drop_on_latency_check = 0;
|
||
|
||
/* Check that fields exist */
|
||
fail_unless (gst_structure_get_uint (s, "seqnum", &seqnum));
|
||
fail_unless (gst_structure_get_uint64 (s, "timestamp", ×tamp));
|
||
fail_unless (gst_structure_get_uint (s, "num-too-late", &num_too_late));
|
||
fail_unless (gst_structure_get_uint (s, "num-drop-on-latency",
|
||
&num_drop_on_latency));
|
||
fail_unless (reason_str = gst_structure_get_string (s, "reason"));
|
||
|
||
/* Assing what to compare message fields to based on message reason */
|
||
if (g_strcmp0 (reason_check, "too-late") == 0) {
|
||
num_too_late_check += num_msg;
|
||
} else if (g_strcmp0 (reason_check, "drop-on-latency") == 0) {
|
||
num_drop_on_latency_check += num_msg;
|
||
} else {
|
||
return FALSE;
|
||
}
|
||
|
||
/* Check that fields have correct value */
|
||
fail_unless (seqnum == seqnum_check);
|
||
fail_unless (g_strcmp0 (reason_str, reason_check) == 0);
|
||
fail_unless (num_too_late == num_too_late_check);
|
||
fail_unless (num_drop_on_latency == num_drop_on_latency_check);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
GST_START_TEST (test_drop_messages_too_late)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 100;
|
||
guint next_seqnum;
|
||
GstBus *bus;
|
||
GstMessage *drop_msg;
|
||
gboolean have_message = FALSE;
|
||
|
||
g_object_set (h->element, "post-drop-messages", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Create a bus to get the drop message on */
|
||
bus = gst_bus_new ();
|
||
gst_element_set_bus (h->element, bus);
|
||
|
||
/* Push test buffer resulting in gap of one */
|
||
push_test_buffer (h, next_seqnum + 1);
|
||
|
||
/* Advance time to trigger timeout of the missing buffer */
|
||
gst_harness_crank_single_clock_wait (h);
|
||
|
||
/* Pull out and unref pushed buffer */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* Push missing buffer, now arriving "too-late" */
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer (next_seqnum)));
|
||
|
||
/* Pop the resulting drop message and check its correctness */
|
||
while (!have_message &&
|
||
(drop_msg = gst_bus_pop_filtered (bus, GST_MESSAGE_ELEMENT)) != NULL) {
|
||
if (gst_message_has_name (drop_msg, "drop-msg")) {
|
||
fail_unless (check_drop_message (drop_msg, "too-late", next_seqnum, 1));
|
||
have_message = TRUE;
|
||
}
|
||
gst_message_unref (drop_msg);
|
||
}
|
||
fail_unless (have_message);
|
||
|
||
/* Cleanup */
|
||
gst_element_set_bus (h->element, NULL);
|
||
gst_object_unref (bus);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_drop_messages_drop_on_latency)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
gint latency_ms = 20;
|
||
guint next_seqnum;
|
||
guint first_seqnum;
|
||
guint final_seqnum;
|
||
GstBus *bus;
|
||
GstMessage *drop_msg;
|
||
gboolean have_message = FALSE;
|
||
|
||
g_object_set (h->element, "post-drop-messages", TRUE, NULL);
|
||
g_object_set (h->element, "drop-on-latency", TRUE, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Create a bus to get the drop message on */
|
||
bus = gst_bus_new ();
|
||
gst_element_set_bus (h->element, bus);
|
||
|
||
/* Push 3 buffers in correct seqnum order with initial gap of 1, with the buffers
|
||
* arriving simultaneously in harness time. First buffer will wait for gap buffer,
|
||
* and the third arriving buffer will trigger the first to be dropped due to
|
||
* drop-on-latency.
|
||
*/
|
||
first_seqnum = ++next_seqnum;
|
||
final_seqnum = next_seqnum + 2;
|
||
for (; next_seqnum <= final_seqnum; next_seqnum++) {
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (next_seqnum * TEST_BUF_DURATION,
|
||
next_seqnum, next_seqnum * TEST_RTP_TS_DURATION)));
|
||
}
|
||
|
||
/* Pop the resulting drop message and check its correctness */
|
||
while (!have_message &&
|
||
(drop_msg = gst_bus_pop_filtered (bus, GST_MESSAGE_ELEMENT)) != NULL) {
|
||
if (gst_message_has_name (drop_msg, "drop-msg")) {
|
||
fail_unless (check_drop_message (drop_msg, "drop-on-latency",
|
||
first_seqnum, 1));
|
||
have_message = TRUE;
|
||
}
|
||
gst_message_unref (drop_msg);
|
||
}
|
||
fail_unless (have_message);
|
||
|
||
/* Cleanup */
|
||
gst_element_set_bus (h->element, NULL);
|
||
gst_object_unref (bus);
|
||
gst_buffer_unref (gst_harness_take_all_data_as_buffer (h));
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_drop_messages_interval)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
guint latency_ms = 100;
|
||
GstClockTime interval = 10;
|
||
guint next_seqnum;
|
||
guint final_seqnum;
|
||
GstBus *bus;
|
||
GstMessage *drop_msg;
|
||
GstClockTime now;
|
||
guint num_late_not_sent = 0;
|
||
guint num_sent_msg = 0;
|
||
|
||
g_object_set (h->element, "post-drop-messages", TRUE, NULL);
|
||
g_object_set (h->element, "drop-messages-interval", interval, NULL);
|
||
next_seqnum = construct_deterministic_initial_state (h, latency_ms);
|
||
|
||
/* Create a bus to get the drop message on */
|
||
bus = gst_bus_new ();
|
||
gst_element_set_bus (h->element, bus);
|
||
|
||
/* Jump 1 second forward in time */
|
||
now = 1 * GST_SECOND;
|
||
gst_harness_set_time (h, now);
|
||
|
||
/* Push a packet with a gap of 3, that now is very late */
|
||
final_seqnum = next_seqnum + 3;
|
||
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer_full (now,
|
||
final_seqnum, final_seqnum * TEST_RTP_TS_DURATION)));
|
||
|
||
/* Pull and unref pushed buffer */
|
||
gst_buffer_unref (gst_harness_pull (h));
|
||
|
||
/* The 3 missing packets are now pushed with half the message "interval" between them.
|
||
* When arriving they are considered as "too-late". Only the first and third should trigger
|
||
* a drop_msg, as the second is dropped during the interval where no new messages will be sent.
|
||
* The second should have num-too-late=2, as the "too-late" event that never sent a message
|
||
* still increments the count of dropped "too-late" buffers.
|
||
*/
|
||
for (; next_seqnum < final_seqnum; next_seqnum++) {
|
||
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h,
|
||
generate_test_buffer (next_seqnum)));
|
||
num_late_not_sent++;
|
||
|
||
/* Pop a potential drop message and check its correctness */
|
||
while ((drop_msg = gst_bus_pop (bus)) != NULL) {
|
||
if (gst_message_has_name (drop_msg, "drop-msg")) {
|
||
fail_unless (check_drop_message (drop_msg, "too-late", next_seqnum,
|
||
num_late_not_sent));
|
||
|
||
num_late_not_sent = 0;
|
||
num_sent_msg++;
|
||
}
|
||
gst_message_unref (drop_msg);
|
||
}
|
||
/* Advance time half the minimum interval of sending drop messages */
|
||
now += (interval * GST_MSECOND) / 2;
|
||
gst_harness_set_time (h, now);
|
||
}
|
||
/* Exactly two drop messages should have been sent */
|
||
fail_unless (num_sent_msg == 2);
|
||
|
||
/* Cleanup */
|
||
gst_element_set_bus (h->element, NULL);
|
||
gst_object_unref (bus);
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
typedef struct
|
||
{
|
||
gint seqnum_d;
|
||
gint rtptime_d;
|
||
gboolean rtx;
|
||
gint sleep_us;
|
||
} BufferArrayCtx;
|
||
|
||
static void
|
||
buffer_array_push (GstHarness * h, GArray * array,
|
||
guint16 seqnum_base, guint32 rtptime_base)
|
||
{
|
||
guint16 seqnum = seqnum_base;
|
||
guint32 rtptime = rtptime_base;
|
||
guint i;
|
||
|
||
for (i = 0; i < array->len; i++) {
|
||
BufferArrayCtx *ctx = &g_array_index (array, BufferArrayCtx, i);
|
||
seqnum += ctx->seqnum_d;
|
||
rtptime += ctx->rtptime_d;
|
||
push_test_buffer_now (h, seqnum, rtptime, ctx->rtx);
|
||
g_usleep (ctx->sleep_us);
|
||
}
|
||
}
|
||
|
||
static gint
|
||
buffer_array_get_max_seqnum_delta (GArray * array)
|
||
{
|
||
gint delta = 0;
|
||
gint max_delta = 0;
|
||
guint i;
|
||
|
||
for (i = 0; i < array->len; i++) {
|
||
BufferArrayCtx *ctx = &g_array_index (array, BufferArrayCtx, i);
|
||
delta += ctx->seqnum_d;
|
||
if (delta > max_delta)
|
||
max_delta = delta;
|
||
}
|
||
return max_delta;
|
||
}
|
||
|
||
static void
|
||
buffer_array_append_sequential (GArray * array, guint num_bufs)
|
||
{
|
||
guint i;
|
||
for (i = 0; i < num_bufs; i++) {
|
||
BufferArrayCtx ctx;
|
||
ctx.seqnum_d = 1;
|
||
ctx.rtptime_d = TEST_RTP_TS_DURATION; /* 20ms for 8KHz */
|
||
ctx.rtx = FALSE;
|
||
ctx.sleep_us = G_USEC_PER_SEC / 1000 * 20; /* 20ms */
|
||
g_array_append_val (array, ctx);
|
||
}
|
||
}
|
||
|
||
static void
|
||
buffer_array_append_ctx (GArray * array, BufferArrayCtx * bufs, guint num_bufs)
|
||
{
|
||
guint i;
|
||
for (i = 0; i < num_bufs; i++) {
|
||
g_array_append_val (array, bufs[i]);
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
check_for_stall (GstHarness * h, BufferArrayCtx * bufs, guint num_bufs)
|
||
{
|
||
guint latency_ms;
|
||
guint initial_bufs;
|
||
guint16 base_seqnum = 10000;
|
||
guint32 base_rtptime = base_seqnum * TEST_RTP_TS_DURATION;
|
||
guint16 max_seqnum;
|
||
guint in_queue;
|
||
GArray *array;
|
||
|
||
gst_harness_use_systemclock (h);
|
||
gst_element_set_base_time (h->element,
|
||
gst_clock_get_time (GST_ELEMENT_CLOCK (h->element)));
|
||
gst_harness_set_src_caps (h, generate_caps ());
|
||
|
||
g_object_get (h->element, "latency", &latency_ms, NULL);
|
||
initial_bufs = latency_ms / TEST_BUF_MS;
|
||
|
||
array = g_array_new (FALSE, FALSE, sizeof (BufferArrayCtx));
|
||
buffer_array_append_sequential (array, initial_bufs);
|
||
buffer_array_append_ctx (array, bufs, num_bufs);
|
||
max_seqnum = base_seqnum + buffer_array_get_max_seqnum_delta (array);
|
||
buffer_array_push (h, array, base_seqnum, base_rtptime);
|
||
g_array_set_size (array, 0);
|
||
|
||
/* sleep a bit to settle things down, then find out
|
||
how many buffers have been pushed out */
|
||
g_usleep (G_USEC_PER_SEC);
|
||
in_queue = gst_harness_buffers_in_queue (h);
|
||
|
||
/* push another 50 buffers normally */
|
||
buffer_array_append_sequential (array, 50);
|
||
base_seqnum = max_seqnum + 1;
|
||
base_rtptime = base_seqnum * TEST_RTP_TS_DURATION;
|
||
buffer_array_push (h, array, base_seqnum, base_rtptime);
|
||
g_array_unref (array);
|
||
|
||
{
|
||
gint64 start_time = g_get_monotonic_time ();
|
||
gint64 timeout_s = 30;
|
||
while (gst_harness_buffers_in_queue (h) <= in_queue) {
|
||
|
||
gint64 duration_s =
|
||
(g_get_monotonic_time () - start_time) / G_USEC_PER_SEC;
|
||
if (duration_s > timeout_s)
|
||
break;
|
||
|
||
g_usleep (G_USEC_PER_SEC / 100);
|
||
}
|
||
}
|
||
|
||
|
||
/* we expect at least some of those buffers to come through */
|
||
return gst_harness_buffers_in_queue (h) > in_queue;
|
||
}
|
||
|
||
GST_START_TEST (test_reset_timers_does_not_stall)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
BufferArrayCtx bufs[] = {
|
||
/* *INDENT-OFF* */
|
||
{ 1, 0, FALSE, 0},
|
||
{ 2, 0, FALSE, 0},
|
||
{ 3, 0, FALSE, 0},
|
||
{ 4, 0, FALSE, 0},
|
||
{ 5, 0, FALSE, 0},
|
||
{ 6, 0, FALSE, 0},
|
||
{ 7, 0, FALSE, 0},
|
||
{ 8, 0, FALSE, 0},
|
||
{ 9, 0, FALSE, 0},
|
||
{10, 0, FALSE, 0},
|
||
/* *INDENT-ON* */
|
||
};
|
||
|
||
g_object_set (h->element, "latency", 100,
|
||
"do-retransmission", TRUE, "do-lost", TRUE, NULL);
|
||
g_object_set (h->element, "max-dropout-time", 10, NULL);
|
||
fail_unless (check_for_stall (h, bufs, G_N_ELEMENTS (bufs)));
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_reset_timers_does_not_stall_2)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
BufferArrayCtx bufs[] = {
|
||
/* *INDENT-OFF* */
|
||
{278, 21920, FALSE, 31695},
|
||
{ 37, 5920, FALSE, 89911},
|
||
{173, 13600, FALSE, 108078},
|
||
{ 30, 27200, FALSE, 190920},
|
||
{-20, 43840, TRUE, 150552},
|
||
{ 42, 4480, FALSE, 131498},
|
||
/* *INDENT-ON* */
|
||
};
|
||
|
||
g_object_set (h->element, "latency", 200,
|
||
"do-retransmission", TRUE, "do-lost", TRUE, NULL);
|
||
fail_unless (check_for_stall (h, bufs, G_N_ELEMENTS (bufs)));
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_multiple_lost_do_not_stall)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
BufferArrayCtx bufs[] = {
|
||
/* *INDENT-OFF* */
|
||
{ 39, 4960, FALSE, 58},
|
||
{-28, -5280, FALSE, 1000},
|
||
/* *INDENT-ON* */
|
||
};
|
||
|
||
g_object_set (h->element, "latency", 200,
|
||
"do-retransmission", TRUE, "do-lost", TRUE, NULL);
|
||
fail_unless (check_for_stall (h, bufs, G_N_ELEMENTS (bufs)));
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_reset_using_rtx_packets_does_not_stall)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
BufferArrayCtx bufs[] = {
|
||
/* *INDENT-OFF* */
|
||
{ 1, 1 * TEST_RTP_TS_DURATION, FALSE, 2000000},
|
||
{ 62, 62 * TEST_RTP_TS_DURATION, FALSE, 0},
|
||
{ -13, -13 * TEST_RTP_TS_DURATION, TRUE, 10000},
|
||
{ 1, 1 * TEST_RTP_TS_DURATION, TRUE, 0},
|
||
{ 1, 1 * TEST_RTP_TS_DURATION, TRUE, 0},
|
||
{ 1, 1 * TEST_RTP_TS_DURATION, TRUE, 0},
|
||
{ 1, 1 * TEST_RTP_TS_DURATION, TRUE, 0},
|
||
{ 1, 1 * TEST_RTP_TS_DURATION, TRUE, 0},
|
||
/* *INDENT-ON* */
|
||
};
|
||
|
||
g_object_set (h->element, "latency", 400,
|
||
"do-retransmission", TRUE, "do-lost", TRUE, "max-misorder-time", 1, NULL);
|
||
fail_unless (check_for_stall (h, bufs, G_N_ELEMENTS (bufs)));
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
GST_START_TEST (test_gap_using_rtx_does_not_stall)
|
||
{
|
||
GstHarness *h = gst_harness_new ("rtpjitterbuffer");
|
||
|
||
BufferArrayCtx bufs[] = {
|
||
/* *INDENT-OFF* */
|
||
{ 201, -1440, FALSE, 185591 },
|
||
{ 265, 1, FALSE, 0 },
|
||
/* *INDENT-ON* */
|
||
};
|
||
|
||
g_object_set (h->element, "do-lost", TRUE,
|
||
"do-retransmission", TRUE,
|
||
"rtx-next-seqnum", FALSE, "rtx-delay-reorder", 0, NULL);
|
||
|
||
fail_unless (check_for_stall (h, bufs, G_N_ELEMENTS (bufs)));
|
||
gst_harness_teardown (h);
|
||
}
|
||
|
||
GST_END_TEST;
|
||
|
||
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_push_eos);
|
||
tcase_add_test (tc_chain, test_basetime);
|
||
tcase_add_test (tc_chain, test_clear_pt_map);
|
||
|
||
tcase_add_test (tc_chain, test_lost_event);
|
||
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_out_of_order_loss_not_reported);
|
||
tcase_add_test (tc_chain, test_late_packets_still_makes_lost_events);
|
||
tcase_add_test (tc_chain, test_lost_event_uses_pts);
|
||
tcase_add_test (tc_chain, test_lost_event_with_backwards_rtptime);
|
||
|
||
tcase_add_test (tc_chain, test_all_packets_are_timestamped_zero);
|
||
tcase_add_loop_test (tc_chain, test_num_late_when_considered_lost_arrives, 0,
|
||
2);
|
||
tcase_add_test (tc_chain, test_reorder_of_non_equidistant_packets);
|
||
tcase_add_test (tc_chain,
|
||
test_loss_equidistant_spacing_with_parameter_packets);
|
||
tcase_add_loop_test (tc_chain, test_no_fractional_lost_event_durations, 0,
|
||
G_N_ELEMENTS (no_fractional_lost_event_durations_input));
|
||
tcase_add_test (tc_chain, test_late_lost_with_same_pts);
|
||
|
||
tcase_add_test (tc_chain, test_rtx_expected_next);
|
||
tcase_add_test (tc_chain, test_rtx_not_bursting_requests);
|
||
|
||
tcase_add_test (tc_chain, test_rtx_next_seqnum_disabled);
|
||
tcase_add_test (tc_chain, test_rtx_two_missing);
|
||
tcase_add_test (tc_chain, test_rtx_buffer_arrives_just_in_time);
|
||
tcase_add_test (tc_chain, test_rtx_buffer_arrives_too_late);
|
||
tcase_add_test (tc_chain, test_rtx_original_buffer_does_not_update_rtx_stats);
|
||
tcase_add_test (tc_chain, test_rtx_duplicate_packet_updates_rtx_stats);
|
||
tcase_add_test (tc_chain,
|
||
test_rtx_buffer_arrives_after_lost_updates_rtx_stats);
|
||
tcase_add_test (tc_chain, test_rtx_rtt_larger_than_retry_timeout);
|
||
tcase_add_test (tc_chain, test_rtx_no_request_if_time_past_retry_period);
|
||
tcase_add_test (tc_chain, test_rtx_same_delay_and_retry_timeout);
|
||
tcase_add_test (tc_chain, test_rtx_with_backwards_rtptime);
|
||
tcase_add_test (tc_chain, test_rtx_timer_reuse);
|
||
tcase_add_test (tc_chain, test_rtx_large_packet_spacing_and_small_rtt);
|
||
tcase_add_test (tc_chain, test_rtx_large_packet_spacing_and_large_rtt);
|
||
tcase_add_test (tc_chain,
|
||
test_rtx_large_packet_spacing_does_not_reset_jitterbuffer);
|
||
tcase_add_test (tc_chain, test_minor_reorder_does_not_skew);
|
||
tcase_add_loop_test (tc_chain, test_rtx_does_not_affect_pts_calculation, 0,
|
||
G_N_ELEMENTS (rtx_does_not_affect_pts_calculation_input));
|
||
tcase_add_test (tc_chain, test_dont_drop_packet_based_on_skew);
|
||
|
||
tcase_add_test (tc_chain, test_deadline_ts_offset);
|
||
tcase_add_test (tc_chain, test_deadline_ts_offset_overflow);
|
||
tcase_add_test (tc_chain, test_big_gap_seqnum);
|
||
tcase_add_test (tc_chain, test_big_gap_arrival_time);
|
||
tcase_add_test (tc_chain, test_fill_queue);
|
||
|
||
tcase_add_loop_test (tc_chain,
|
||
test_considered_lost_packet_in_large_gap_arrives, 0,
|
||
G_N_ELEMENTS (test_considered_lost_packet_in_large_gap_arrives_input));
|
||
|
||
tcase_add_test (tc_chain, test_performance);
|
||
|
||
tcase_add_test (tc_chain, test_drop_messages_too_late);
|
||
tcase_add_test (tc_chain, test_drop_messages_drop_on_latency);
|
||
tcase_add_test (tc_chain, test_drop_messages_interval);
|
||
|
||
tcase_add_test (tc_chain, test_reset_timers_does_not_stall);
|
||
tcase_add_test (tc_chain, test_reset_timers_does_not_stall_2);
|
||
tcase_add_test (tc_chain, test_multiple_lost_do_not_stall);
|
||
tcase_add_test (tc_chain, test_reset_using_rtx_packets_does_not_stall);
|
||
tcase_add_test (tc_chain, test_gap_using_rtx_does_not_stall);
|
||
|
||
|
||
return s;
|
||
}
|
||
|
||
GST_CHECK_MAIN (rtpjitterbuffer);
|