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gstreamer/tests/check/libs/rtpbasedepayload.c
Mathieu Duponchelle 8467939538 rtpbasedepayload: condition the sending of gap events 
The default implementation for packet loss handling previously
always sent a gap event.

While this is correct as long as we know the packet that was
lost was actually a media packet, with ULPFEC this becomes
a bit more complicated, as we do not know whether the packet
that was lost was a FEC packet, in which case it is better
to not actually send any gap events in the default implementation.

Some payloaders can be more clever about, for example VP8 can
use the picture-id, and the M and S bits to determine whether
the missing packet was inside an encoded frame or outside,
and thus whether if it was a media packet or a FEC packet,
which is why ulpfecdec still lets these lost events go through,
though stripping them of their seqnum, and appending a new
"might-have-been-fec" field to them.

This is all a bit terrible, but necessary to have ULPFEC
integrate properly with the rest of our RTP stack.

https://bugzilla.gnome.org/show_bug.cgi?id=794909
2018-04-19 16:39:06 +02:00

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/* GStreamer RTP base depayloader unit tests
* Copyright (C) 2014 Sebastian Rasmussen <sebras@hotmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General
* Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/check/gstcheck.h>
#include <gst/rtp/gstrtpbuffer.h>
#include <gst/rtp/gstrtpbasedepayload.h>
#define DEFAULT_CLOCK_RATE (42)
/* GstRtpDummyDepay */
#define GST_TYPE_RTP_DUMMY_DEPAY \
(gst_rtp_dummy_depay_get_type())
#define GST_RTP_DUMMY_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_DUMMY_DEPAY,GstRtpDummyDepay))
#define GST_RTP_DUMMY_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_DUMMY_DEPAY,GstRtpDummyDepayClass))
#define GST_IS_RTP_DUMMY_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_DUMMY_DEPAY))
#define GST_IS_RTP_DUMMY_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_DUMMY_DEPAY))
typedef struct _GstRtpDummyDepay GstRtpDummyDepay;
typedef struct _GstRtpDummyDepayClass GstRtpDummyDepayClass;
struct _GstRtpDummyDepay
{
GstRTPBaseDepayload depayload;
guint64 rtptime;
};
struct _GstRtpDummyDepayClass
{
GstRTPBaseDepayloadClass parent_class;
};
GType gst_rtp_dummy_depay_get_type (void);
G_DEFINE_TYPE (GstRtpDummyDepay, gst_rtp_dummy_depay,
GST_TYPE_RTP_BASE_DEPAYLOAD);
static GstBuffer *gst_rtp_dummy_depay_process (GstRTPBaseDepayload * depayload,
GstBuffer * buf);
static gboolean gst_rtp_dummy_depay_set_caps (GstRTPBaseDepayload * filter,
GstCaps * caps);
static GstStaticPadTemplate gst_rtp_dummy_depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate gst_rtp_dummy_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static void
gst_rtp_dummy_depay_class_init (GstRtpDummyDepayClass * klass)
{
GstElementClass *gstelement_class;
GstRTPBaseDepayloadClass *gstrtpbasedepayload_class;
gstelement_class = GST_ELEMENT_CLASS (klass);
gstrtpbasedepayload_class = GST_RTP_BASE_DEPAYLOAD_CLASS (klass);
gst_element_class_add_static_pad_template (gstelement_class,
&gst_rtp_dummy_depay_sink_template);
gst_element_class_add_static_pad_template (gstelement_class,
&gst_rtp_dummy_depay_src_template);
gstrtpbasedepayload_class->process = gst_rtp_dummy_depay_process;
gstrtpbasedepayload_class->set_caps = gst_rtp_dummy_depay_set_caps;
}
static void
gst_rtp_dummy_depay_init (GstRtpDummyDepay * depay)
{
depay->rtptime = 0;
}
static GstRtpDummyDepay *
rtp_dummy_depay_new (void)
{
return g_object_new (GST_TYPE_RTP_DUMMY_DEPAY, NULL);
}
static GstBuffer *
gst_rtp_dummy_depay_process (GstRTPBaseDepayload * depayload, GstBuffer * buf)
{
GstRTPBuffer rtp = { NULL };
GstBuffer *outbuf;
guint32 rtptime;
guint i;
GST_LOG ("depayloading buffer pts=%" GST_TIME_FORMAT " offset=%"
G_GUINT64_FORMAT " memories=%d", GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
GST_BUFFER_OFFSET (buf), gst_buffer_n_memory (buf));
for (i = 0; i < gst_buffer_n_memory (buf); i++) {
GstMemory *mem = gst_buffer_get_memory (buf, 0);
gsize size, offset, maxsize;
size = gst_memory_get_sizes (mem, &offset, &maxsize);
GST_LOG ("\tsize=%zd offset=%zd maxsize=%zd", size, offset, maxsize);
gst_memory_unref (mem);
}
gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp);
outbuf = gst_rtp_buffer_get_payload_buffer (&rtp);
rtptime = gst_rtp_buffer_get_timestamp (&rtp);
gst_rtp_buffer_unmap (&rtp);
GST_BUFFER_PTS (outbuf) = GST_BUFFER_PTS (buf);
GST_BUFFER_OFFSET (outbuf) = GST_BUFFER_OFFSET (buf);
GST_LOG ("depayloaded buffer pts=%" GST_TIME_FORMAT " offset=%"
G_GUINT64_FORMAT " rtptime=%" G_GUINT32_FORMAT " memories=%d",
GST_TIME_ARGS (GST_BUFFER_PTS (outbuf)),
GST_BUFFER_OFFSET (outbuf), rtptime, gst_buffer_n_memory (buf));
for (i = 0; i < gst_buffer_n_memory (buf); i++) {
GstMemory *mem = gst_buffer_get_memory (buf, 0);
gsize size, offset, maxsize;
size = gst_memory_get_sizes (mem, &offset, &maxsize);
GST_LOG ("\tsize=%zd offset=%zd maxsize=%zd", size, offset, maxsize);
gst_memory_unref (mem);
}
return outbuf;
}
static gboolean
gst_rtp_dummy_depay_set_caps (GstRTPBaseDepayload * filter, GstCaps * caps)
{
GstEvent *event;
event = gst_event_new_caps (caps);
gst_pad_push_event (filter->srcpad, event);
return TRUE;
}
/* Helper functions and global state */
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
typedef struct State State;
struct State
{
GstElement *element;
GstPad *sinkpad;
GstPad *srcpad;
};
static GList *events;
static gboolean
event_func (GstPad * pad, GstObject * noparent, GstEvent * event)
{
events = g_list_append (events, gst_event_ref (event));
return gst_pad_event_default (pad, noparent, event);
}
static void
drop_events (void)
{
while (events != NULL) {
gst_event_unref (GST_EVENT (events->data));
events = g_list_delete_link (events, events);
}
}
static void
validate_events_received (guint received)
{
fail_unless_equals_int (g_list_length (events), received);
}
static void
validate_event (guint index, const gchar * name, const gchar * field, ...)
{
GstEvent *event;
va_list var_args;
fail_if (index >= g_list_length (events));
event = GST_EVENT (g_list_nth_data (events, index));
fail_if (event == NULL);
GST_TRACE ("%" GST_PTR_FORMAT, event);
fail_unless_equals_string (GST_EVENT_TYPE_NAME (event), name);
va_start (var_args, field);
while (field) {
if (!g_strcmp0 (field, "timestamp")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
GstClockTime timestamp, duration;
gst_event_parse_gap (event, &timestamp, &duration);
fail_unless_equals_uint64 (timestamp, expected);
} else if (!g_strcmp0 (field, "duration")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
GstClockTime timestamp, duration;
gst_event_parse_gap (event, &timestamp, &duration);
fail_unless_equals_uint64 (duration, expected);
} else if (!g_strcmp0 (field, "time")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
fail_unless_equals_uint64 (segment->time, expected);
} else if (!g_strcmp0 (field, "start")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
fail_unless_equals_uint64 (segment->start, expected);
} else if (!g_strcmp0 (field, "stop")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
fail_unless_equals_uint64 (segment->stop, expected);
} else if (!g_strcmp0 (field, "applied-rate")) {
gdouble expected = va_arg (var_args, gdouble);
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
fail_unless_equals_uint64 (segment->applied_rate, expected);
} else if (!g_strcmp0 (field, "rate")) {
gdouble expected = va_arg (var_args, gdouble);
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
fail_unless_equals_uint64 (segment->rate, expected);
} else if (!g_strcmp0 (field, "base")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
fail_unless_equals_uint64 (segment->base, expected);
} else if (!g_strcmp0 (field, "media-type")) {
const gchar *expected = va_arg (var_args, const gchar *);
GstCaps *caps;
const gchar *media_type;
gst_event_parse_caps (event, &caps);
media_type = gst_structure_get_name (gst_caps_get_structure (caps, 0));
fail_unless_equals_string (media_type, expected);
} else if (!g_strcmp0 (field, "npt-start")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
GstCaps *caps;
GstClockTime start;
gst_event_parse_caps (event, &caps);
fail_unless (gst_structure_get_clock_time (gst_caps_get_structure (caps,
0), "npt-start", &start));
fail_unless_equals_uint64 (start, expected);
} else if (!g_strcmp0 (field, "npt-stop")) {
GstClockTime expected = va_arg (var_args, GstClockTime);
GstCaps *caps;
GstClockTime stop;
gst_event_parse_caps (event, &caps);
fail_unless (gst_structure_get_clock_time (gst_caps_get_structure (caps,
0), "npt-stop", &stop));
fail_unless_equals_uint64 (stop, expected);
} else if (!g_strcmp0 (field, "play-speed")) {
gdouble expected = va_arg (var_args, gdouble);
GstCaps *caps;
gdouble speed;
gst_event_parse_caps (event, &caps);
fail_unless (gst_structure_get_double (gst_caps_get_structure (caps, 0),
"play-speed", &speed));
fail_unless (speed == expected);
} else if (!g_strcmp0 (field, "play-scale")) {
gdouble expected = va_arg (var_args, gdouble);
GstCaps *caps;
gdouble scale;
gst_event_parse_caps (event, &caps);
fail_unless (gst_structure_get_double (gst_caps_get_structure (caps, 0),
"play-scale", &scale));
fail_unless (scale == expected);
} else if (!g_strcmp0 (field, "clock-base")) {
guint expected = va_arg (var_args, guint);
GstCaps *caps;
guint clock_base;
gst_event_parse_caps (event, &caps);
fail_unless (gst_structure_get_uint (gst_caps_get_structure (caps, 0),
"clock-base", &clock_base));
fail_unless (clock_base == expected);
} else {
fail ("test cannot validate unknown event field '%s'", field);
}
field = va_arg (var_args, const gchar *);
}
va_end (var_args);
}
#define push_rtp_buffer(state, field, ...) \
push_rtp_buffer_full ((state), GST_FLOW_OK, (field), __VA_ARGS__)
#define push_rtp_buffer_fails(state, error, field, ...) \
push_rtp_buffer_full ((state), (error), (field), __VA_ARGS__)
static void
push_rtp_buffer_full (State * state, GstFlowReturn expected,
const gchar * field, ...)
{
GstBuffer *buf = gst_rtp_buffer_new_allocate (0, 0, 0);
GstRTPBuffer rtp = { NULL };
gboolean mapped = FALSE;
gboolean extra_ref = FALSE;
va_list var_args;
va_start (var_args, field);
while (field) {
if (!g_strcmp0 (field, "pts")) {
GstClockTime pts = va_arg (var_args, GstClockTime);
GST_BUFFER_PTS (buf) = pts;
} else if (!g_strcmp0 (field, "offset")) {
guint64 offset = va_arg (var_args, guint64);
GST_BUFFER_OFFSET (buf) = offset;
} else if (!g_strcmp0 (field, "discont")) {
gboolean discont = va_arg (var_args, gboolean);
if (discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
} else {
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DISCONT);
}
} else {
if (!mapped) {
gst_rtp_buffer_map (buf, GST_MAP_WRITE, &rtp);
mapped = TRUE;
}
if (!g_strcmp0 (field, "rtptime")) {
guint32 rtptime = va_arg (var_args, guint64);
gst_rtp_buffer_set_timestamp (&rtp, rtptime);
} else if (!g_strcmp0 (field, "payload-type")) {
guint payload_type = va_arg (var_args, guint);
gst_rtp_buffer_set_payload_type (&rtp, payload_type);
} else if (!g_strcmp0 (field, "seq")) {
guint seq = va_arg (var_args, guint);
gst_rtp_buffer_set_seq (&rtp, seq);
} else if (!g_strcmp0 (field, "ssrc")) {
guint32 ssrc = va_arg (var_args, guint);
gst_rtp_buffer_set_ssrc (&rtp, ssrc);
} else if (!g_strcmp0 (field, "extra-ref")) {
extra_ref = va_arg (var_args, gboolean);
} else {
fail ("test cannot set unknown buffer field '%s'", field);
}
}
field = va_arg (var_args, const gchar *);
}
va_end (var_args);
if (mapped) {
gst_rtp_buffer_unmap (&rtp);
}
if (extra_ref)
gst_buffer_ref (buf);
fail_unless_equals_int (gst_pad_push (state->srcpad, buf), expected);
if (extra_ref)
gst_buffer_unref (buf);
}
#define push_buffer(state, field, ...) \
push_buffer_full ((state), GST_FLOW_OK, (field), __VA_ARGS__)
static void
push_buffer_full (State * state, GstFlowReturn expected,
const gchar * field, ...)
{
GstBuffer *buf = gst_buffer_new_allocate (0, 0, 0);
va_list var_args;
va_start (var_args, field);
while (field) {
if (!g_strcmp0 (field, "pts")) {
GstClockTime pts = va_arg (var_args, GstClockTime);
GST_BUFFER_PTS (buf) = pts;
} else if (!g_strcmp0 (field, "offset")) {
guint64 offset = va_arg (var_args, guint64);
GST_BUFFER_OFFSET (buf) = offset;
} else if (!g_strcmp0 (field, "discont")) {
gboolean discont = va_arg (var_args, gboolean);
if (discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
} else {
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DISCONT);
}
} else {
fail ("test cannot set unknown buffer field '%s'", field);
}
field = va_arg (var_args, const gchar *);
}
va_end (var_args);
fail_unless_equals_int (gst_pad_push (state->srcpad, buf), expected);
}
static void
validate_buffers_received (guint received)
{
fail_unless_equals_int (g_list_length (buffers), received);
}
static void
validate_buffer (guint index, const gchar * field, ...)
{
GstBuffer *buf;
va_list var_args;
fail_if (index >= g_list_length (buffers));
buf = GST_BUFFER (g_list_nth_data (buffers, (index)));
fail_if (buf == NULL);
GST_TRACE ("%" GST_PTR_FORMAT, buf);
va_start (var_args, field);
while (field) {
if (!g_strcmp0 (field, "pts")) {
GstClockTime pts = va_arg (var_args, GstClockTime);
fail_unless_equals_uint64 (GST_BUFFER_PTS (buf), pts);
} else if (!g_strcmp0 (field, "offset")) {
guint64 offset = va_arg (var_args, guint64);
fail_unless_equals_uint64 (GST_BUFFER_OFFSET (buf), offset);
} else if (!g_strcmp0 (field, "discont")) {
gboolean discont = va_arg (var_args, gboolean);
if (discont) {
fail_unless (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT));
} else {
fail_if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT));
}
} else {
fail ("test cannot validate unknown buffer field '%s'", field);
}
field = va_arg (var_args, const gchar *);
}
va_end (var_args);
}
static State *
create_depayloader (const gchar * caps_str, const gchar * property, ...)
{
va_list var_args;
GstCaps *caps;
State *state;
state = g_new0 (State, 1);
state->element = GST_ELEMENT (rtp_dummy_depay_new ());
fail_unless (GST_IS_RTP_DUMMY_DEPAY (state->element));
va_start (var_args, property);
g_object_set_valist (G_OBJECT (state->element), property, var_args);
va_end (var_args);
state->srcpad = gst_check_setup_src_pad (state->element, &srctemplate);
state->sinkpad = gst_check_setup_sink_pad (state->element, &sinktemplate);
fail_unless (gst_pad_set_active (state->srcpad, TRUE));
fail_unless (gst_pad_set_active (state->sinkpad, TRUE));
if (caps_str) {
caps = gst_caps_from_string (caps_str);
} else {
caps = NULL;
}
gst_check_setup_events (state->srcpad, state->element, caps, GST_FORMAT_TIME);
if (caps) {
gst_caps_unref (caps);
}
gst_pad_set_chain_function (state->sinkpad, gst_check_chain_func);
gst_pad_set_event_function (state->sinkpad, event_func);
return state;
}
static void
set_state (State * state, GstState new_state)
{
fail_unless_equals_int (gst_element_set_state (state->element, new_state),
GST_STATE_CHANGE_SUCCESS);
}
static void
packet_lost (State * state, GstClockTime timestamp, GstClockTime duration,
gboolean might_have_been_fec)
{
GstEvent *event;
guint seqnum = 0x4243;
gboolean late = TRUE;
guint retries = 42;
event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new ("GstRTPPacketLost",
"seqnum", G_TYPE_UINT, seqnum,
"timestamp", G_TYPE_UINT64, timestamp,
"duration", G_TYPE_UINT64, duration,
"might-have-been-fec", G_TYPE_BOOLEAN, might_have_been_fec,
"late", G_TYPE_BOOLEAN, late, "retry", G_TYPE_UINT, retries, NULL));
fail_unless (gst_pad_push_event (state->srcpad, event));
}
static void
reconfigure_caps (State * state, const gchar * caps_str)
{
GstCaps *newcaps;
GstEvent *event;
newcaps = gst_caps_from_string (caps_str);
event = gst_event_new_caps (newcaps);
gst_caps_unref (newcaps);
fail_unless (gst_pad_push_event (state->srcpad, event));
}
static void
flush_pipeline (State * state)
{
GstEvent *event;
GstSegment segment;
event = gst_event_new_flush_start ();
fail_unless (gst_pad_push_event (state->srcpad, event));
event = gst_event_new_flush_stop (TRUE);
fail_unless (gst_pad_push_event (state->srcpad, event));
gst_segment_init (&segment, GST_FORMAT_TIME);
event = gst_event_new_segment (&segment);
fail_unless (gst_pad_push_event (state->srcpad, event));
}
static void
destroy_depayloader (State * state)
{
gst_check_teardown_sink_pad (state->element);
gst_check_teardown_src_pad (state->element);
gst_check_drop_buffers ();
drop_events ();
g_object_unref (state->element);
g_free (state);
}
/* Tests */
/* send two RTP packets having sequential sequence numbers and timestamps
* differing by DEFAULT_CLOCK_RATE. the depayloader first pushes the normal
* stream-start, caps and segment events downstream before processing each RTP
* packet and pushing a corresponding buffer. PTS will be carried over from the
* RTP packets by the payloader to the buffers. because the sequence numbers are
* sequential then GST_BUFFER_FLAG_DISCONT will not be set for either buffer.
*/
GST_START_TEST (rtp_base_depayload_buffer_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (3);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* the intent with this test is to provide the depayloader with a buffer that
* does not contain an RTP header. this makes it impossible for the depayloader
* to depayload the incoming RTP packet, yet the stream-start and caps events
* will still be pushed.
*/
GST_START_TEST (rtp_base_depayload_invalid_rtp_packet_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_buffer (state,
"pts", 0 * GST_SECOND, "offset", GST_BUFFER_OFFSET_NONE, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (0);
validate_events_received (2);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* validate what happens when a depayloader is provided with two RTP packets
* sent after each other that do not have sequential sequence numbers. in this
* case the depayloader should be able to depayload both first and the second
* buffer, but the second buffer will have GST_BUFFER_FLAG_DISCONT set to
* indicate that the was a discontinuity in the stream. the initial events are
* pushed prior to the buffers arriving so they should be unaffected by the gap
* in sequence numbers.
*/
GST_START_TEST (rtp_base_depayload_with_gap_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321), "seq", 0x4242, NULL);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 2, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", TRUE, NULL);
validate_events_received (3);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* two RTP packets are pushed in this test, and while the sequence numbers are
* sequential they are reversed. the expectation is that the depayloader will be
* able to depayload the first RTP packet, but once the second RTP packet
* arrives it will be discarded because it arrived too late. the initial events
* should be unaffected by the reversed buffers.
*/
GST_START_TEST (rtp_base_depayload_reversed_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321), "seq", 0x4242, NULL);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 - 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (1);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (3);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* The same scenario as in rtp_base_depayload_reversed_test
* except that SSRC is changed for the 2nd packet that is why
* it should not be discarded.
*/
GST_START_TEST (rtp_base_depayload_ssrc_changed_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321),
"seq", 0x4242, "ssrc", 0xabe2b0b, NULL);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 - 1, "ssrc", 0xcafebabe, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", TRUE, NULL);
validate_events_received (3);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* the intent of this test is to push two RTP packets that have reverse sequence
* numbers that differ significantly. the depayloader will consider RTP packets
* where the sequence numbers differ by more than 1000 to indicate that the
* source of the RTP packets has been restarted. therefore it will let both
* depayloaded buffers through, but the latter buffer marked
* GST_BUFFER_FLAG_DISCONT to indicate the discontinuity in the stream. the
* initial events should be unaffected by the reversed buffers.
*/
GST_START_TEST (rtp_base_depayload_old_reversed_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321), "seq", 0x4242, NULL);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x43214321) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 - 1000, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", TRUE, NULL);
validate_events_received (3);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* a depayloader that has not received any caps event will not be able to
* process any incoming RTP packet. instead pushing an RTP packet should result
* in the expected error.
*/
GST_START_TEST (rtp_base_depayload_without_negotiation_test)
{
State *state;
state = create_depayloader (NULL, NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer_fails (state, GST_FLOW_NOT_NEGOTIATED,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (0);
validate_events_received (1);
validate_event (0, "stream-start", NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* a depayloader that receives the downstream event GstRTPPacketLost should
* respond by emitting a gap event with the corresponding timestamp and
* duration. the initial events are unaffected, but are succeeded by the added
* gap event.
*/
GST_START_TEST (rtp_base_depayload_packet_lost_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
packet_lost (state, 1 * GST_SECOND, GST_SECOND, FALSE);
/* If a packet was lost but we don't know whether it was a FEC packet,
* the depayloader should not generate gap events */
packet_lost (state, 2 * GST_SECOND, GST_SECOND, TRUE);
push_rtp_buffer (state,
"pts", 2 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + 2 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 2, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 2 * GST_SECOND, "discont", TRUE, NULL);
validate_events_received (4);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
validate_event (3, "gap",
"timestamp", 1 * GST_SECOND, "duration", GST_SECOND, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* rtp base depayloader should set DISCONT flag on buffer in case of a large
* sequence number gap, and it's not set already by upstream. This tests a
* certain code path where the buffer needs to be made writable to set the
* DISCONT flag.
*/
GST_START_TEST (rtp_base_depayload_seq_discont_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 1, NULL);
push_rtp_buffer (state,
"extra-ref", TRUE,
"pts", 2 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + DEFAULT_CLOCK_RATE / 2,
"seq", 33333, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 2 * GST_SECOND, "discont", TRUE, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* a depayloader that receives identical caps events simply ignores the latter
* events without propagating them downstream.
*/
GST_START_TEST (rtp_base_depayload_repeated_caps_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
reconfigure_caps (state, "application/x-rtp");
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (3);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* when a depayloader receives new caps events with npt-start and npt-stop times
* it should save these timestamps as they should affect the next segment event
* being pushed by the depayloader. a new segment event is not pushed by the
* depayloader until a flush_stop event and a succeeding segment event are
* received. of course the intial event are unaffected, as is the incoming caps
* event.
*/
GST_START_TEST (rtp_base_depayload_npt_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
reconfigure_caps (state,
"application/x-rtp, npt-start=(guint64)1234, npt-stop=(guint64)4321");
flush_pipeline (state);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (7);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
validate_event (3, "caps",
"media-type", "application/x-rtp",
"npt-start", G_GUINT64_CONSTANT (1234),
"npt-stop", G_GUINT64_CONSTANT (4321), NULL);
validate_event (4, "flush-start", NULL);
validate_event (5, "flush-stop", NULL);
validate_event (6, "segment",
"time", G_GUINT64_CONSTANT (1234),
"start", G_GUINT64_CONSTANT (0),
"stop", G_GUINT64_CONSTANT (4321 - 1234), NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* when a depayloader receives a new caps event with play-scale it should save
* this rate as it should affect the next segment event being pushed by the
* depayloader. a new segment event is not pushed by the depayloader until a
* flush_stop event and a succeeding segment event are received. of course the
* intial event are unaffected, as is the incoming caps event.
*/
GST_START_TEST (rtp_base_depayload_play_scale_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
reconfigure_caps (state, "application/x-rtp, play-scale=(double)2.0");
flush_pipeline (state);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (7);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
validate_event (3, "caps",
"media-type", "application/x-rtp", "play-scale", 2.0, NULL);
validate_event (4, "flush-start", NULL);
validate_event (5, "flush-stop", NULL);
validate_event (6, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0),
"stop", G_MAXUINT64, "rate", 1.0, "applied-rate", 2.0, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* when a depayloader receives a new caps event with play-speed it should save
* this rate as it should affect the next segment event being pushed by the
* depayloader. a new segment event is not pushed by the depayloader until a
* flush_stop event and a succeeding segment event are received. of course the
* intial event are unaffected, as is the incoming caps event.
*/
GST_START_TEST (rtp_base_depayload_play_speed_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234), "seq", 0x4242, NULL);
reconfigure_caps (state, "application/x-rtp, play-speed=(double)2.0");
flush_pipeline (state);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (0x1234) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (7);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
validate_event (3, "caps",
"media-type", "application/x-rtp", "play-speed", 2.0, NULL);
validate_event (4, "flush-start", NULL);
validate_event (5, "flush-stop", NULL);
validate_event (6, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0),
"stop", G_MAXUINT64, "rate", 2.0, "applied-rate", 1.0, NULL);
destroy_depayloader (state);
}
GST_END_TEST
/* when a depayloader receives new caps events with npt-start, npt-stop and
* clock-base it should save these timestamps as they should affect the next
* segment event being pushed by the depayloader. the produce segment should
* make the positon of the stream reflect the postion form clock-base instead
* of reflecting the running time (for RTSP).
*/
GST_START_TEST (rtp_base_depayload_clock_base_test)
{
State *state;
state = create_depayloader ("application/x-rtp", NULL);
set_state (state, GST_STATE_PLAYING);
push_rtp_buffer (state,
"pts", 0 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (1234), "seq", 0x4242, NULL);
reconfigure_caps (state,
"application/x-rtp, npt-start=(guint64)1234, npt-stop=(guint64)4321, clock-base=(guint)1234");
flush_pipeline (state);
push_rtp_buffer (state,
"pts", 1 * GST_SECOND,
"rtptime", G_GUINT64_CONSTANT (1234) + 1 * DEFAULT_CLOCK_RATE,
"seq", 0x4242 + 1, NULL);
set_state (state, GST_STATE_NULL);
validate_buffers_received (2);
validate_buffer (0, "pts", 0 * GST_SECOND, "discont", FALSE, NULL);
validate_buffer (1, "pts", 1 * GST_SECOND, "discont", FALSE, NULL);
validate_events_received (7);
validate_event (0, "stream-start", NULL);
validate_event (1, "caps", "media-type", "application/x-rtp", NULL);
validate_event (2, "segment",
"time", G_GUINT64_CONSTANT (0),
"start", G_GUINT64_CONSTANT (0), "stop", G_MAXUINT64, NULL);
validate_event (3, "caps",
"media-type", "application/x-rtp",
"npt-start", G_GUINT64_CONSTANT (1234),
"npt-stop", G_GUINT64_CONSTANT (4321), "clock-base", 1234, NULL);
validate_event (4, "flush-start", NULL);
validate_event (5, "flush-stop", NULL);
validate_event (6, "segment",
"time", G_GUINT64_CONSTANT (1234),
"start", GST_SECOND,
"stop", GST_SECOND + G_GUINT64_CONSTANT (4321 - 1234),
"base", GST_SECOND, NULL);
destroy_depayloader (state);
}
GST_END_TEST static Suite *
rtp_basepayloading_suite (void)
{
Suite *s = suite_create ("rtp_base_depayloading_test");
TCase *tc_chain = tcase_create ("depayloading tests");
tcase_set_timeout (tc_chain, 60);
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, rtp_base_depayload_buffer_test);
tcase_add_test (tc_chain, rtp_base_depayload_invalid_rtp_packet_test);
tcase_add_test (tc_chain, rtp_base_depayload_with_gap_test);
tcase_add_test (tc_chain, rtp_base_depayload_reversed_test);
tcase_add_test (tc_chain, rtp_base_depayload_ssrc_changed_test);
tcase_add_test (tc_chain, rtp_base_depayload_old_reversed_test);
tcase_add_test (tc_chain, rtp_base_depayload_without_negotiation_test);
tcase_add_test (tc_chain, rtp_base_depayload_packet_lost_test);
tcase_add_test (tc_chain, rtp_base_depayload_seq_discont_test);
tcase_add_test (tc_chain, rtp_base_depayload_repeated_caps_test);
tcase_add_test (tc_chain, rtp_base_depayload_npt_test);
tcase_add_test (tc_chain, rtp_base_depayload_play_scale_test);
tcase_add_test (tc_chain, rtp_base_depayload_play_speed_test);
tcase_add_test (tc_chain, rtp_base_depayload_clock_base_test);
return s;
}
GST_CHECK_MAIN (rtp_basepayloading)
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