gstreamer/tests/check/elements/rtpvp9.c

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2016-06-08 13:06:28 +00:00
/* GStreamer
*
* Copyright (C) 2016 Pexip AS
* @author Stian Selnes <stian@pexip.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <gst/check/check.h>
#include <gst/check/gstharness.h>
#define RTP_VP9_CAPS_STR \
"application/x-rtp,media=video,encoding-name=VP9,clock-rate=90000,payload=96"
GST_START_TEST (test_depay_flexible_mode)
{
/* b-bit, e-bit, f-bit and marker bit set */
/* First packet of first frame, handcrafted to also set the e-bit and marker
* bit in addition to changing the seqnum */
guint8 intra[] = {
0x80, 0xf4, 0x00, 0x00, 0x49, 0xb5, 0xbe, 0x32, 0xb1, 0x01, 0x64, 0xd1,
0xbc, 0x98, 0xbf, 0x00, 0x83, 0x49, 0x83, 0x42, 0x00, 0x77, 0xf0, 0x43,
0x71, 0xd8, 0xe0, 0x90, 0x70, 0x66, 0x80, 0x60, 0x0e, 0xf0, 0x5f, 0xfd,
};
/* b-bit, e-bit, p-bit, f-bit and marker bit set */
/* First packet of second frame, handcrafted to also set the e-bit and
* marker bit in addition to changing the seqnum */
guint8 inter[] = {
0x80, 0xf4, 0x00, 0x01, 0x49, 0xb6, 0x02, 0xc0, 0xb1, 0x01, 0x64, 0xd1,
0xfc, 0x98, 0xc0, 0x00, 0x02, 0x87, 0x01, 0x00, 0x09, 0x3f, 0x1c, 0x12,
0x0e, 0x0c, 0xd0, 0x1b, 0xa7, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xda, 0x11,
};
GstHarness *h = gst_harness_new ("rtpvp9depay");
gst_harness_set_src_caps_str (h, RTP_VP9_CAPS_STR);
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
intra, sizeof (intra), 0, sizeof (intra), NULL, NULL));
fail_unless_equals_int (1, gst_harness_buffers_received (h));
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
inter, sizeof (inter), 0, sizeof (inter), NULL, NULL));
fail_unless_equals_int (2, gst_harness_buffers_received (h));
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_depay_non_flexible_mode)
{
/* b-bit, e-bit and marker bit set. f-bit NOT set */
/* First packet of first frame, handcrafted to also set the e-bit and marker
* bit in addition to changing the seqnum */
guint8 intra[] = {
0x80, 0xf4, 0x00, 0x00, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0x8c, 0x98, 0xc0, 0x87, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
/* b-bit, e-bit, p-bit and marker bit set. f-bit NOT set */
/* First packet of second frame, handcrafted to also set the e-bit and
* marker bit in addition to changing the seqnum */
guint8 inter[] = {
0x80, 0xf4, 0x00, 0x01, 0x49, 0x88, 0xe5, 0x38, 0xa0, 0x6c, 0x65, 0x6c,
0xcc, 0x98, 0xc1, 0x87, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0x97, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0x8a, 0x9f, 0x01, 0xbc
};
GstHarness *h = gst_harness_new ("rtpvp9depay");
gst_harness_set_src_caps_str (h, RTP_VP9_CAPS_STR);
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
intra, sizeof (intra), 0, sizeof (intra), NULL, NULL));
fail_unless_equals_int (1, gst_harness_buffers_received (h));
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
inter, sizeof (inter), 0, sizeof (inter), NULL, NULL));
fail_unless_equals_int (2, gst_harness_buffers_received (h));
gst_harness_teardown (h);
}
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GST_END_TEST;
static guint8 intra_picid6336_seqnum0[] = {
0x80, 0xf4, 0x00, 0x00, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0x8c, 0x98, 0xc0, 0x87, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
static guint8 intra_picid24_seqnum0[] = {
0x80, 0xf4, 0x00, 0x00, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0x8c, 0x18, 0x87, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
static guint8 intra_nopicid_seqnum0[] = {
0x80, 0xf4, 0x00, 0x00, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0x0c, 0x87, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
enum
{
BT_PLAIN_PICID_NONE,
BT_PLAIN_PICID_7,
BT_PLAIN_PICID_15,
/* Commented out for now, until added VP9 equvivalents.
BT_TS_PICID_NONE,
BT_TS_PICID_7,
BT_TS_PICID_15,
BT_TS_PICID_7_NO_TLOPICIDX,
BT_TS_PICID_7_NO_TID_Y_KEYIDX
*/
};
static GstBuffer *
create_rtp_vp9_buffer_full (guint seqnum, guint picid, guint buffer_type,
GstClockTime buf_pts, gboolean B_bit_start_of_frame, gboolean marker_bit)
{
static struct BufferTemplate
{
guint8 *template;
gsize size;
gint picid_bits;
} templates[] = {
{
intra_nopicid_seqnum0, sizeof (intra_nopicid_seqnum0), 0}
, {
intra_picid24_seqnum0, sizeof (intra_picid24_seqnum0), 7}
, {
intra_picid6336_seqnum0, sizeof (intra_picid6336_seqnum0), 15}
,
/*
{ intra_nopicid_seqnum0_tl1_sync_tl0picidx12,
sizeof (intra_nopicid_seqnum0_tl1_sync_tl0picidx12),
0
},
{ intra_picid24_seqnum0_tl1_sync_tl0picidx12,
sizeof (intra_picid24_seqnum0_tl1_sync_tl0picidx12),
7
},
{ intra_picid6336_seqnum0_tl1_sync_tl0picidx12,
sizeof (intra_picid6336_seqnum0_tl1_sync_tl0picidx12),
15
},
{ intra_picid24_seqnum0_tl1_sync_no_tl0picidx,
sizeof (intra_picid24_seqnum0_tl1_sync_no_tl0picidx),
7
},
{ intra_picid24_seqnum0_notyk_tl0picidx12,
sizeof (intra_picid24_seqnum0_notyk_tl0picidx12),
7
}
*/
};
struct BufferTemplate *template = &templates[buffer_type];
guint8 *packet = g_memdup (template->template, template->size);
GstBuffer *ret;
packet[2] = (seqnum >> 8) & 0xff;
packet[3] = (seqnum >> 0) & 0xff;
/* We're forcing the E-bit (EndOfFrame) together with the RTP marker bit here, which is a bit of a hack.
* If we're to enable spatial scalability tests, we need to take that into account when setting the E bit.
*/
if (marker_bit) {
packet[1] |= 0x80;
packet[12] |= 0x4;
} else {
packet[1] &= ~0x80;
packet[12] &= ~0x4;
}
if (B_bit_start_of_frame)
packet[12] |= 0x8;
else
packet[12] &= ~0x8;
if (template->picid_bits == 7) {
/* Prerequisites for this to be correct:
((packet[12] & 0x80) == 0x80); I bit set
*/
g_assert ((packet[12] & 0x80) == 0x80);
packet[13] = picid & 0x7f;
} else if (template->picid_bits == 15) {
/* Prerequisites for this to be correct:
((packet[12] & 0x80) == 0x80); I bit set
*/
g_assert ((packet[12] & 0x80) == 0x80);
packet[13] = ((picid >> 8) & 0xff) | 0x80;
packet[14] = (picid >> 0) & 0xff;
}
ret = gst_buffer_new_wrapped (packet, template->size);
GST_BUFFER_PTS (ret) = buf_pts;
return ret;
}
static GstBuffer *
create_rtp_vp9_buffer (guint seqnum, guint picid, guint buffer_type,
GstClockTime buf_pts)
{
return create_rtp_vp9_buffer_full (seqnum, picid, buffer_type, buf_pts, TRUE,
TRUE);
}
typedef struct _DepayGapEventTestData
{
gint seq_num;
gint picid;
guint buffer_type;
} DepayGapEventTestData;
typedef struct
{
gint seq_num;
gint picid;
guint buffer_type;
gboolean s_bit;
gboolean marker_bit;
} DepayGapEventTestDataFull;
static void
test_depay_gap_event_base (const DepayGapEventTestData * data,
gboolean send_lost_event, gboolean expect_gap_event, int iter)
{
GstEvent *event;
GstClockTime pts = 0;
GstHarness *h = gst_harness_new ("rtpvp9depay");
if (send_lost_event == FALSE && expect_gap_event) {
/* Expect picture ID gaps to be concealed, so tell the element to do so. */
g_object_set (h->element, "hide-picture-id-gap", TRUE, NULL);
}
gst_harness_set_src_caps_str (h, RTP_VP9_CAPS_STR);
gst_harness_push (h, create_rtp_vp9_buffer (data[0].seq_num, data[0].picid,
data[0].buffer_type, pts));
pts += 33 * GST_MSECOND;
/* Preparation before pushing gap event. Getting rid of all events which
* came by this point - segment, caps, etc */
for (gint i = 0; i < 3; i++)
gst_event_unref (gst_harness_pull_event (h));
fail_unless_equals_int (gst_harness_events_in_queue (h), 0);
if (send_lost_event) {
gst_harness_push_event (h,
gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new ("GstRTPPacketLost", "timestamp", G_TYPE_UINT64,
pts, "duration", G_TYPE_UINT64, 33 * GST_MSECOND,
"might-have-been-fec", G_TYPE_BOOLEAN, TRUE, NULL)));
pts += 33 * GST_MSECOND;
}
gst_harness_push (h, create_rtp_vp9_buffer (data[1].seq_num, data[1].picid,
data[1].buffer_type, pts));
fail_unless_equals_int (2, gst_harness_buffers_received (h));
if (expect_gap_event) {
gboolean noloss = FALSE;
/* Making sure the GAP event was pushed downstream */
event = gst_harness_pull_event (h);
fail_unless_equals_string ("gap",
gst_event_type_get_name (GST_EVENT_TYPE (event)));
gst_structure_get_boolean (gst_event_get_structure (event),
"no-packet-loss", &noloss);
/* If we didn't send GstRTPPacketLost event, the gap
* event should indicate that with 'no-packet-loss' parameter */
fail_unless_equals_int (noloss, !send_lost_event);
gst_event_unref (event);
}
fail_unless_equals_int (gst_harness_events_in_queue (h), 0);
gst_harness_teardown (h);
}
static const DepayGapEventTestData stop_gap_events_test_data[][2] = {
/* 7bit picture ids */
{{100, 24, BT_PLAIN_PICID_7}, {102, 25, BT_PLAIN_PICID_7}},
/* 15bit picture ids */
{{100, 250, BT_PLAIN_PICID_15}, {102, 251, BT_PLAIN_PICID_15}},
/* 7bit picture ids wrap */
{{100, 127, BT_PLAIN_PICID_7}, {102, 0, BT_PLAIN_PICID_7}},
/* 15bit picture ids wrap */
{{100, 32767, BT_PLAIN_PICID_15}, {102, 0, BT_PLAIN_PICID_15}},
/* 7bit to 15bit picture id */
{{100, 127, BT_PLAIN_PICID_7}, {102, 128, BT_PLAIN_PICID_15}},
};
GST_START_TEST (test_depay_stop_gap_events)
{
test_depay_gap_event_base (&stop_gap_events_test_data[__i__][0], TRUE, FALSE,
__i__);
}
GST_END_TEST;
/* Packet loss + lost picture ids */
static const DepayGapEventTestData resend_gap_event_test_data[][2] = {
/* 7bit picture ids */
{{100, 24, BT_PLAIN_PICID_7}, {102, 26, BT_PLAIN_PICID_7}},
/* 15bit picture ids */
{{100, 250, BT_PLAIN_PICID_15}, {102, 252, BT_PLAIN_PICID_15}},
/* 7bit picture ids wrap */
{{100, 127, BT_PLAIN_PICID_7}, {102, 1, BT_PLAIN_PICID_7}},
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/* 15bit picture ids wrap */
{{100, 32767, BT_PLAIN_PICID_15}, {102, 1, BT_PLAIN_PICID_15}},
/* 7bit to 15bit picture id */
{{100, 126, BT_PLAIN_PICID_7}, {102, 129, BT_PLAIN_PICID_15}},
};
GST_START_TEST (test_depay_resend_gap_event)
{
test_depay_gap_event_base (&resend_gap_event_test_data[__i__][0], TRUE, TRUE,
__i__);
}
GST_END_TEST;
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GST_START_TEST (test_depay_svc_merge_layers)
{
/* This simulates a simple SVC stream, for simplicity we handcraft a couple
* of rtp packets. */
/* First packet contains a complete base layer I-frame (s-bit and e-bit).
* Note the marker bit is not set to indicate that there will be more
* packets for this picture. */
guint8 layer0[] = {
0x80, 0x74, 0x00, 0x00, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0xac, 0x80, 0x01, 0x00, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
/* s-bit, e-bit, d-bit and sid=1 set to indicate a complete enhancement
* frame. marker bit set to indicate last packet of picture. */
guint8 layer1_with_marker[] = {
0x80, 0xf4, 0x00, 0x01, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0xac, 0x80, 0x01, 0x03, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
GstBuffer *buf;
GstHarness *h = gst_harness_new ("rtpvp9depay");
gst_harness_set_src_caps_str (h, RTP_VP9_CAPS_STR);
/* The first packet contains a complete base layer frame that. Since the
* marker bit is not set, it will wait for an enhancement layer before it
* pushes it downstream. */
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
layer0, sizeof (layer0), 0, sizeof (layer0), NULL, NULL));
fail_unless_equals_int (0, gst_harness_buffers_received (h));
/* Next packet contains a complete enhancement frame. The picture is
* complete (marker bit set) and can be pushed */
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
layer1_with_marker, sizeof (layer1_with_marker), 0,
sizeof (layer1_with_marker), NULL, NULL));
fail_unless_equals_int (1, gst_harness_buffers_received (h));
/* The buffer should contain both layer 0 and layer 1. */
buf = gst_harness_pull (h);
fail_unless_equals_int (19 * 2, gst_buffer_get_size (buf));
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_depay_svc_forgive_invalid_sid)
{
/* This simulates an invalid stream received from FF61 and Chromium 66
* (Electron). The RTP header signals the same spatial layer ID for all
* packets of a picture (SID=0), but the s-bit, e-bit and d-bit suggests
* there is a second layer. The conservative approach would be to drop the
* enhancement layers since we don't want to push a bitstream we're
* uncertain of to the decoder. However, this reduces the quality
* significantly and also sometimes results in an encoder/decoder mismatch
* (altough it shouldn't). */
/* The first packet contains a complete base layer frame. Since the
* marker bit is not set, it will wait for an enhancement layer before it
* pushes it downstream. s-bit, e-bit set, no marker*/
guint8 layer0[] = {
0x80, 0x74, 0x00, 0x00, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0xac, 0x80, 0x01, 0x00, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
/* Next packet contains a complete enhancement frame. The picture is
* complete (marker bit set) and picture can be pushed. However, the SID is
* invalid (SID=0, but should be SID=1). Let's forgive that and push the
* packet downstream anyway. s-bit, e-bit, d-bit and sid=0 and marker
* bit. */
guint8 layer1_with_sid0_and_marker[] = {
0x80, 0xf4, 0x00, 0x01, 0x49, 0x88, 0xd9, 0xf8, 0xa0, 0x6c, 0x65, 0x6c,
0xac, 0x80, 0x01, 0x01, 0x01, 0x02, 0x49, 0x3f, 0x1c, 0x12, 0x0e, 0x0c,
0xd0, 0x1b, 0xb9, 0x80, 0x80, 0xb0, 0x18, 0x0f, 0xa6, 0x4d, 0x01, 0xa5
};
GstBuffer *buf;
GstHarness *h = gst_harness_new ("rtpvp9depay");
gst_harness_set_src_caps_str (h, RTP_VP9_CAPS_STR);
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
layer0, sizeof (layer0), 0, sizeof (layer0), NULL, NULL));
fail_unless_equals_int (0, gst_harness_buffers_received (h));
gst_harness_push (h, gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
layer1_with_sid0_and_marker, sizeof (layer1_with_sid0_and_marker), 0,
sizeof (layer1_with_sid0_and_marker), NULL, NULL));
fail_unless_equals_int (1, gst_harness_buffers_received (h));
/* The buffer should contain both layer 0 and layer 1. */
buf = gst_harness_pull (h);
fail_unless_equals_int (19 * 2, gst_buffer_get_size (buf));
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_END_TEST;
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static Suite *
rtpvp9_suite (void)
{
Suite *s = suite_create ("rtpvp9");
TCase *tc_chain;
suite_add_tcase (s, (tc_chain = tcase_create ("vp9depay")));
tcase_add_test (tc_chain, test_depay_flexible_mode);
tcase_add_test (tc_chain, test_depay_non_flexible_mode);
tcase_add_loop_test (tc_chain, test_depay_stop_gap_events, 0,
G_N_ELEMENTS (stop_gap_events_test_data));
tcase_add_loop_test (tc_chain, test_depay_resend_gap_event, 0,
G_N_ELEMENTS (resend_gap_event_test_data));
tcase_add_test (tc_chain, test_depay_svc_merge_layers);
tcase_add_test (tc_chain, test_depay_svc_forgive_invalid_sid);
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return s;
}
GST_CHECK_MAIN (rtpvp9);