forked from JumpingYang001/webrtc
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathvideo_send_stream_tests.cc
4000 lines (3479 loc) · 142 KB
/
video_send_stream_tests.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <algorithm> // max
#include <memory>
#include <vector>
#include "call/call.h"
#include "call/rtp_transport_controller_send.h"
#include "common_video/include/frame_callback.h"
#include "common_video/include/video_frame.h"
#include "modules/rtp_rtcp/include/rtp_header_parser.h"
#include "modules/rtp_rtcp/include/rtp_rtcp.h"
#include "modules/rtp_rtcp/source/rtcp_sender.h"
#include "modules/rtp_rtcp/source/rtp_format_vp9.h"
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp9/include/vp9.h"
#include "rtc_base/bind.h"
#include "rtc_base/checks.h"
#include "rtc_base/criticalsection.h"
#include "rtc_base/event.h"
#include "rtc_base/experiments/alr_experiment.h"
#include "rtc_base/logging.h"
#include "rtc_base/platform_thread.h"
#include "rtc_base/rate_limiter.h"
#include "rtc_base/timeutils.h"
#include "system_wrappers/include/sleep.h"
#include "test/call_test.h"
#include "test/configurable_frame_size_encoder.h"
#include "test/encoder_proxy_factory.h"
#include "test/fake_encoder.h"
#include "test/fake_texture_frame.h"
#include "test/field_trial.h"
#include "test/frame_generator.h"
#include "test/frame_generator_capturer.h"
#include "test/frame_utils.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/null_transport.h"
#include "test/rtcp_packet_parser.h"
#include "test/testsupport/perf_test.h"
#include "call/video_send_stream.h"
#include "video/send_statistics_proxy.h"
#include "video/transport_adapter.h"
#include "video/video_send_stream.h"
namespace webrtc {
namespace test {
class VideoSendStreamPeer {
public:
explicit VideoSendStreamPeer(webrtc::VideoSendStream* base_class_stream)
: internal_stream_(
static_cast<internal::VideoSendStream*>(base_class_stream)) {}
absl::optional<float> GetPacingFactorOverride() const {
return internal_stream_->GetPacingFactorOverride();
}
private:
internal::VideoSendStream const* const internal_stream_;
};
} // namespace test
enum VideoFormat {
kGeneric,
kVP8,
};
void ExpectEqualFramesVector(const std::vector<VideoFrame>& frames1,
const std::vector<VideoFrame>& frames2);
VideoFrame CreateVideoFrame(int width, int height, uint8_t data);
class VideoSendStreamTest : public test::CallTest {
protected:
void TestNackRetransmission(uint32_t retransmit_ssrc,
uint8_t retransmit_payload_type);
void TestPacketFragmentationSize(VideoFormat format, bool with_fec);
void TestVp9NonFlexMode(uint8_t num_temporal_layers,
uint8_t num_spatial_layers);
void TestRequestSourceRotateVideo(bool support_orientation_ext);
};
TEST_F(VideoSendStreamTest, CanStartStartedStream) {
task_queue_.SendTask([this]() {
CreateSenderCall();
test::NullTransport transport;
CreateSendConfig(1, 0, 0, &transport);
CreateVideoStreams();
GetVideoSendStream()->Start();
GetVideoSendStream()->Start();
DestroyStreams();
DestroyCalls();
});
}
TEST_F(VideoSendStreamTest, CanStopStoppedStream) {
task_queue_.SendTask([this]() {
CreateSenderCall();
test::NullTransport transport;
CreateSendConfig(1, 0, 0, &transport);
CreateVideoStreams();
GetVideoSendStream()->Stop();
GetVideoSendStream()->Stop();
DestroyStreams();
DestroyCalls();
});
}
TEST_F(VideoSendStreamTest, SupportsCName) {
static std::string kCName = "PjQatC14dGfbVwGPUOA9IH7RlsFDbWl4AhXEiDsBizo=";
class CNameObserver : public test::SendTest {
public:
CNameObserver() : SendTest(kDefaultTimeoutMs) {}
private:
Action OnSendRtcp(const uint8_t* packet, size_t length) override {
test::RtcpPacketParser parser;
EXPECT_TRUE(parser.Parse(packet, length));
if (parser.sdes()->num_packets() > 0) {
EXPECT_EQ(1u, parser.sdes()->chunks().size());
EXPECT_EQ(kCName, parser.sdes()->chunks()[0].cname);
observation_complete_.Set();
}
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->rtp.c_name = kCName;
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for RTCP with CNAME.";
}
} test;
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsAbsoluteSendTime) {
class AbsoluteSendTimeObserver : public test::SendTest {
public:
AbsoluteSendTimeObserver() : SendTest(kDefaultTimeoutMs) {
EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
kRtpExtensionAbsoluteSendTime, test::kAbsSendTimeExtensionId));
}
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
EXPECT_FALSE(header.extension.hasTransmissionTimeOffset);
EXPECT_TRUE(header.extension.hasAbsoluteSendTime);
EXPECT_EQ(header.extension.transmissionTimeOffset, 0);
if (header.extension.absoluteSendTime != 0) {
// Wait for at least one packet with a non-zero send time. The send time
// is a 16-bit value derived from the system clock, and it is valid
// for a packet to have a zero send time. To tell that from an
// unpopulated value we'll wait for a packet with non-zero send time.
observation_complete_.Set();
} else {
RTC_LOG(LS_WARNING)
<< "Got a packet with zero absoluteSendTime, waiting"
" for another packet...";
}
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->rtp.extensions.clear();
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kAbsSendTimeUri, test::kAbsSendTimeExtensionId));
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for single RTP packet.";
}
} test;
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsTransmissionTimeOffset) {
static const int kEncodeDelayMs = 5;
class TransmissionTimeOffsetObserver : public test::SendTest {
public:
TransmissionTimeOffsetObserver()
: SendTest(kDefaultTimeoutMs), encoder_factory_([]() {
return absl::make_unique<test::DelayedEncoder>(
Clock::GetRealTimeClock(), kEncodeDelayMs);
}) {
EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
kRtpExtensionTransmissionTimeOffset, test::kTOffsetExtensionId));
}
private:
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
EXPECT_TRUE(header.extension.hasTransmissionTimeOffset);
EXPECT_FALSE(header.extension.hasAbsoluteSendTime);
EXPECT_GT(header.extension.transmissionTimeOffset, 0);
EXPECT_EQ(header.extension.absoluteSendTime, 0u);
observation_complete_.Set();
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->encoder_settings.encoder_factory = &encoder_factory_;
send_config->rtp.extensions.clear();
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kTimestampOffsetUri, test::kTOffsetExtensionId));
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for a single RTP packet.";
}
test::FunctionVideoEncoderFactory encoder_factory_;
} test;
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsTransportWideSequenceNumbers) {
static const uint8_t kExtensionId = test::kTransportSequenceNumberExtensionId;
class TransportWideSequenceNumberObserver : public test::SendTest {
public:
TransportWideSequenceNumberObserver()
: SendTest(kDefaultTimeoutMs), encoder_factory_([]() {
return absl::make_unique<test::FakeEncoder>(
Clock::GetRealTimeClock());
}) {
EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
kRtpExtensionTransportSequenceNumber, kExtensionId));
}
private:
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
EXPECT_TRUE(header.extension.hasTransportSequenceNumber);
EXPECT_FALSE(header.extension.hasTransmissionTimeOffset);
EXPECT_FALSE(header.extension.hasAbsoluteSendTime);
observation_complete_.Set();
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->encoder_settings.encoder_factory = &encoder_factory_;
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for a single RTP packet.";
}
test::FunctionVideoEncoderFactory encoder_factory_;
} test;
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsVideoRotation) {
class VideoRotationObserver : public test::SendTest {
public:
VideoRotationObserver() : SendTest(kDefaultTimeoutMs) {
EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
kRtpExtensionVideoRotation, test::kVideoRotationExtensionId));
}
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
// Only the last packet of the frame is required to have the extension.
if (!header.markerBit)
return SEND_PACKET;
EXPECT_TRUE(header.extension.hasVideoRotation);
EXPECT_EQ(kVideoRotation_90, header.extension.videoRotation);
observation_complete_.Set();
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->rtp.extensions.clear();
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kVideoRotationUri, test::kVideoRotationExtensionId));
}
void OnFrameGeneratorCapturerCreated(
test::FrameGeneratorCapturer* frame_generator_capturer) override {
frame_generator_capturer->SetFakeRotation(kVideoRotation_90);
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for single RTP packet.";
}
} test;
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsVideoContentType) {
class VideoContentTypeObserver : public test::SendTest {
public:
VideoContentTypeObserver()
: SendTest(kDefaultTimeoutMs), first_frame_sent_(false) {
EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
kRtpExtensionVideoContentType, test::kVideoContentTypeExtensionId));
}
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
// Only the last packet of the key-frame must have extension.
if (!header.markerBit || first_frame_sent_)
return SEND_PACKET;
// First marker bit seen means that the first frame is sent.
first_frame_sent_ = true;
EXPECT_TRUE(header.extension.hasVideoContentType);
EXPECT_TRUE(videocontenttypehelpers::IsScreenshare(
header.extension.videoContentType));
observation_complete_.Set();
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->rtp.extensions.clear();
send_config->rtp.extensions.push_back(
RtpExtension(RtpExtension::kVideoContentTypeUri,
test::kVideoContentTypeExtensionId));
encoder_config->content_type = VideoEncoderConfig::ContentType::kScreen;
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for single RTP packet.";
}
private:
bool first_frame_sent_;
} test;
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsVideoTimingFrames) {
class VideoTimingObserver : public test::SendTest {
public:
VideoTimingObserver() : SendTest(kDefaultTimeoutMs) {
EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
kRtpExtensionVideoTiming, test::kVideoTimingExtensionId));
}
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
// Only the last packet of the frame must have extension.
if (!header.markerBit)
return SEND_PACKET;
EXPECT_TRUE(header.extension.has_video_timing);
observation_complete_.Set();
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
send_config->rtp.extensions.clear();
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kVideoTimingUri, test::kVideoTimingExtensionId));
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for timing frames.";
}
} test;
RunBaseTest(&test);
}
class FakeReceiveStatistics : public ReceiveStatisticsProvider {
public:
FakeReceiveStatistics(uint32_t send_ssrc,
uint32_t last_sequence_number,
uint32_t cumulative_lost,
uint8_t fraction_lost) {
stat_.SetMediaSsrc(send_ssrc);
stat_.SetExtHighestSeqNum(last_sequence_number);
stat_.SetCumulativeLost(cumulative_lost);
stat_.SetFractionLost(fraction_lost);
}
std::vector<rtcp::ReportBlock> RtcpReportBlocks(size_t max_blocks) override {
EXPECT_GE(max_blocks, 1u);
return {stat_};
}
private:
rtcp::ReportBlock stat_;
};
class UlpfecObserver : public test::EndToEndTest {
public:
UlpfecObserver(bool header_extensions_enabled,
bool use_nack,
bool expect_red,
bool expect_ulpfec,
const std::string& codec,
VideoEncoderFactory* encoder_factory)
: EndToEndTest(kTimeoutMs),
encoder_factory_(encoder_factory),
payload_name_(codec),
use_nack_(use_nack),
expect_red_(expect_red),
expect_ulpfec_(expect_ulpfec),
sent_media_(false),
sent_ulpfec_(false),
header_extensions_enabled_(header_extensions_enabled) {}
// Some of the test cases are expected to time out and thus we are using
// a shorter timeout window than the default here.
static constexpr size_t kTimeoutMs = 10000;
private:
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
int encapsulated_payload_type = -1;
if (header.payloadType == VideoSendStreamTest::kRedPayloadType) {
EXPECT_TRUE(expect_red_);
encapsulated_payload_type = static_cast<int>(packet[header.headerLength]);
if (encapsulated_payload_type !=
VideoSendStreamTest::kFakeVideoSendPayloadType) {
EXPECT_EQ(VideoSendStreamTest::kUlpfecPayloadType,
encapsulated_payload_type);
}
} else {
EXPECT_EQ(VideoSendStreamTest::kFakeVideoSendPayloadType,
header.payloadType);
if (static_cast<size_t>(header.headerLength + header.paddingLength) <
length) {
// Not padding-only, media received outside of RED.
EXPECT_FALSE(expect_red_);
sent_media_ = true;
}
}
if (header_extensions_enabled_) {
EXPECT_TRUE(header.extension.hasAbsoluteSendTime);
uint32_t kHalf24BitsSpace = 0xFFFFFF / 2;
if (header.extension.absoluteSendTime <= kHalf24BitsSpace &&
prev_header_.extension.absoluteSendTime > kHalf24BitsSpace) {
// 24 bits wrap.
EXPECT_GT(prev_header_.extension.absoluteSendTime,
header.extension.absoluteSendTime);
} else {
EXPECT_GE(header.extension.absoluteSendTime,
prev_header_.extension.absoluteSendTime);
}
EXPECT_TRUE(header.extension.hasTransportSequenceNumber);
uint16_t seq_num_diff = header.extension.transportSequenceNumber -
prev_header_.extension.transportSequenceNumber;
EXPECT_EQ(1, seq_num_diff);
}
if (encapsulated_payload_type != -1) {
if (encapsulated_payload_type ==
VideoSendStreamTest::kUlpfecPayloadType) {
EXPECT_TRUE(expect_ulpfec_);
sent_ulpfec_ = true;
} else {
sent_media_ = true;
}
}
if (sent_media_ && sent_ulpfec_) {
observation_complete_.Set();
}
prev_header_ = header;
return SEND_PACKET;
}
test::PacketTransport* CreateSendTransport(
test::SingleThreadedTaskQueueForTesting* task_queue,
Call* sender_call) override {
// At low RTT (< kLowRttNackMs) -> NACK only, no FEC.
// Configure some network delay.
const int kNetworkDelayMs = 100;
FakeNetworkPipe::Config config;
config.loss_percent = 5;
config.queue_delay_ms = kNetworkDelayMs;
return new test::PacketTransport(
task_queue, sender_call, this, test::PacketTransport::kSender,
VideoSendStreamTest::payload_type_map_, config);
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
if (use_nack_) {
send_config->rtp.nack.rtp_history_ms =
(*receive_configs)[0].rtp.nack.rtp_history_ms =
VideoSendStreamTest::kNackRtpHistoryMs;
}
send_config->encoder_settings.encoder_factory = encoder_factory_;
send_config->rtp.payload_name = payload_name_;
send_config->rtp.ulpfec.red_payload_type =
VideoSendStreamTest::kRedPayloadType;
send_config->rtp.ulpfec.ulpfec_payload_type =
VideoSendStreamTest::kUlpfecPayloadType;
EXPECT_FALSE(send_config->rtp.extensions.empty());
if (!header_extensions_enabled_) {
send_config->rtp.extensions.clear();
} else {
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kAbsSendTimeUri, test::kAbsSendTimeExtensionId));
}
encoder_config->codec_type = PayloadStringToCodecType(payload_name_);
(*receive_configs)[0].rtp.red_payload_type =
send_config->rtp.ulpfec.red_payload_type;
(*receive_configs)[0].rtp.ulpfec_payload_type =
send_config->rtp.ulpfec.ulpfec_payload_type;
}
void PerformTest() override {
EXPECT_EQ(expect_ulpfec_, Wait())
<< "Timed out waiting for ULPFEC and/or media packets.";
}
VideoEncoderFactory* encoder_factory_;
std::string payload_name_;
const bool use_nack_;
const bool expect_red_;
const bool expect_ulpfec_;
bool sent_media_;
bool sent_ulpfec_;
bool header_extensions_enabled_;
RTPHeader prev_header_;
};
TEST_F(VideoSendStreamTest, SupportsUlpfecWithExtensions) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
UlpfecObserver test(true, false, true, true, "VP8", &encoder_factory);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsUlpfecWithoutExtensions) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
UlpfecObserver test(false, false, true, true, "VP8", &encoder_factory);
RunBaseTest(&test);
}
class VideoSendStreamWithoutUlpfecTest : public VideoSendStreamTest {
protected:
VideoSendStreamWithoutUlpfecTest()
: field_trial_("WebRTC-DisableUlpFecExperiment/Enabled/") {}
test::ScopedFieldTrials field_trial_;
};
TEST_F(VideoSendStreamWithoutUlpfecTest, NoUlpfecIfDisabledThroughFieldTrial) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
UlpfecObserver test(false, false, false, false, "VP8", &encoder_factory);
RunBaseTest(&test);
}
// The FEC scheme used is not efficient for H264, so we should not use RED/FEC
// since we'll still have to re-request FEC packets, effectively wasting
// bandwidth since the receiver has to wait for FEC retransmissions to determine
// that the received state is actually decodable.
TEST_F(VideoSendStreamTest, DoesNotUtilizeUlpfecForH264WithNackEnabled) {
test::FunctionVideoEncoderFactory encoder_factory([]() {
return absl::make_unique<test::FakeH264Encoder>(Clock::GetRealTimeClock());
});
UlpfecObserver test(false, true, false, false, "H264", &encoder_factory);
RunBaseTest(&test);
}
// Without retransmissions FEC for H264 is fine.
TEST_F(VideoSendStreamTest, DoesUtilizeUlpfecForH264WithoutNackEnabled) {
test::FunctionVideoEncoderFactory encoder_factory([]() {
return absl::make_unique<test::FakeH264Encoder>(Clock::GetRealTimeClock());
});
UlpfecObserver test(false, false, true, true, "H264", &encoder_factory);
RunBaseTest(&test);
}
// Disabled as flaky, see https://crbug.com/webrtc/7285 for details.
TEST_F(VideoSendStreamTest, DISABLED_DoesUtilizeUlpfecForVp8WithNackEnabled) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
UlpfecObserver test(false, true, true, true, "VP8", &encoder_factory);
RunBaseTest(&test);
}
#if !defined(RTC_DISABLE_VP9)
// Disabled as flaky, see https://crbug.com/webrtc/7285 for details.
TEST_F(VideoSendStreamTest, DISABLED_DoesUtilizeUlpfecForVp9WithNackEnabled) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP9Encoder::Create(); });
UlpfecObserver test(false, true, true, true, "VP9", &encoder_factory);
RunBaseTest(&test);
}
#endif // !defined(RTC_DISABLE_VP9)
TEST_F(VideoSendStreamTest, SupportsUlpfecWithMultithreadedH264) {
test::FunctionVideoEncoderFactory encoder_factory([]() {
return absl::make_unique<test::MultithreadedFakeH264Encoder>(
Clock::GetRealTimeClock());
});
UlpfecObserver test(false, false, true, true, "H264", &encoder_factory);
RunBaseTest(&test);
}
// TODO(brandtr): Move these FlexFEC tests when we have created
// FlexfecSendStream.
class FlexfecObserver : public test::EndToEndTest {
public:
FlexfecObserver(bool header_extensions_enabled,
bool use_nack,
const std::string& codec,
VideoEncoderFactory* encoder_factory,
size_t num_video_streams)
: EndToEndTest(VideoSendStreamTest::kDefaultTimeoutMs),
encoder_factory_(encoder_factory),
payload_name_(codec),
use_nack_(use_nack),
sent_media_(false),
sent_flexfec_(false),
header_extensions_enabled_(header_extensions_enabled),
num_video_streams_(num_video_streams) {}
size_t GetNumFlexfecStreams() const override { return 1; }
size_t GetNumVideoStreams() const override { return num_video_streams_; }
private:
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
if (header.payloadType == VideoSendStreamTest::kFlexfecPayloadType) {
EXPECT_EQ(VideoSendStreamTest::kFlexfecSendSsrc, header.ssrc);
sent_flexfec_ = true;
} else {
EXPECT_EQ(VideoSendStreamTest::kFakeVideoSendPayloadType,
header.payloadType);
EXPECT_THAT(testing::make_tuple(VideoSendStreamTest::kVideoSendSsrcs,
num_video_streams_),
testing::Contains(header.ssrc));
sent_media_ = true;
}
if (header_extensions_enabled_) {
EXPECT_TRUE(header.extension.hasAbsoluteSendTime);
EXPECT_TRUE(header.extension.hasTransmissionTimeOffset);
EXPECT_TRUE(header.extension.hasTransportSequenceNumber);
}
if (sent_media_ && sent_flexfec_) {
observation_complete_.Set();
}
return SEND_PACKET;
}
test::PacketTransport* CreateSendTransport(
test::SingleThreadedTaskQueueForTesting* task_queue,
Call* sender_call) override {
// At low RTT (< kLowRttNackMs) -> NACK only, no FEC.
// Therefore we need some network delay.
const int kNetworkDelayMs = 100;
FakeNetworkPipe::Config config;
config.loss_percent = 5;
config.queue_delay_ms = kNetworkDelayMs;
return new test::PacketTransport(
task_queue, sender_call, this, test::PacketTransport::kSender,
VideoSendStreamTest::payload_type_map_, config);
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
if (use_nack_) {
send_config->rtp.nack.rtp_history_ms =
(*receive_configs)[0].rtp.nack.rtp_history_ms =
VideoSendStreamTest::kNackRtpHistoryMs;
}
send_config->encoder_settings.encoder_factory = encoder_factory_;
send_config->rtp.payload_name = payload_name_;
if (header_extensions_enabled_) {
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kAbsSendTimeUri, test::kAbsSendTimeExtensionId));
send_config->rtp.extensions.push_back(RtpExtension(
RtpExtension::kTimestampOffsetUri, test::kTOffsetExtensionId));
} else {
send_config->rtp.extensions.clear();
}
encoder_config->codec_type = PayloadStringToCodecType(payload_name_);
}
void PerformTest() override {
EXPECT_TRUE(Wait())
<< "Timed out waiting for FlexFEC and/or media packets.";
}
VideoEncoderFactory* encoder_factory_;
std::string payload_name_;
const bool use_nack_;
bool sent_media_;
bool sent_flexfec_;
const bool header_extensions_enabled_;
const size_t num_video_streams_;
};
TEST_F(VideoSendStreamTest, SupportsFlexfecVp8) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
FlexfecObserver test(false, false, "VP8", &encoder_factory, 1);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsFlexfecSimulcastVp8) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
FlexfecObserver test(false, false, "VP8", &encoder_factory, 2);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsFlexfecWithNackVp8) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
FlexfecObserver test(false, true, "VP8", &encoder_factory, 1);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsFlexfecWithRtpExtensionsVp8) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP8Encoder::Create(); });
FlexfecObserver test(true, false, "VP8", &encoder_factory, 1);
RunBaseTest(&test);
}
#if !defined(RTC_DISABLE_VP9)
TEST_F(VideoSendStreamTest, SupportsFlexfecVp9) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP9Encoder::Create(); });
FlexfecObserver test(false, false, "VP9", &encoder_factory, 1);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsFlexfecWithNackVp9) {
test::FunctionVideoEncoderFactory encoder_factory(
[]() { return VP9Encoder::Create(); });
FlexfecObserver test(false, true, "VP9", &encoder_factory, 1);
RunBaseTest(&test);
}
#endif // defined(RTC_DISABLE_VP9)
TEST_F(VideoSendStreamTest, SupportsFlexfecH264) {
test::FunctionVideoEncoderFactory encoder_factory([]() {
return absl::make_unique<test::FakeH264Encoder>(Clock::GetRealTimeClock());
});
FlexfecObserver test(false, false, "H264", &encoder_factory, 1);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsFlexfecWithNackH264) {
test::FunctionVideoEncoderFactory encoder_factory([]() {
return absl::make_unique<test::FakeH264Encoder>(Clock::GetRealTimeClock());
});
FlexfecObserver test(false, true, "H264", &encoder_factory, 1);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, SupportsFlexfecWithMultithreadedH264) {
test::FunctionVideoEncoderFactory encoder_factory([]() {
return absl::make_unique<test::MultithreadedFakeH264Encoder>(
Clock::GetRealTimeClock());
});
FlexfecObserver test(false, false, "H264", &encoder_factory, 1);
RunBaseTest(&test);
}
void VideoSendStreamTest::TestNackRetransmission(
uint32_t retransmit_ssrc,
uint8_t retransmit_payload_type) {
class NackObserver : public test::SendTest {
public:
explicit NackObserver(uint32_t retransmit_ssrc,
uint8_t retransmit_payload_type)
: SendTest(kDefaultTimeoutMs),
send_count_(0),
retransmit_count_(0),
retransmit_ssrc_(retransmit_ssrc),
retransmit_payload_type_(retransmit_payload_type) {}
private:
Action OnSendRtp(const uint8_t* packet, size_t length) override {
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
int kRetransmitTarget = 6;
++send_count_;
if (send_count_ == 5 || send_count_ == 25) {
nacked_sequence_numbers_.push_back(
static_cast<uint16_t>(header.sequenceNumber - 3));
nacked_sequence_numbers_.push_back(
static_cast<uint16_t>(header.sequenceNumber - 2));
nacked_sequence_numbers_.push_back(
static_cast<uint16_t>(header.sequenceNumber - 1));
RTCPSender rtcp_sender(false, Clock::GetRealTimeClock(), nullptr,
nullptr, nullptr, transport_adapter_.get(),
RtcpIntervalConfig{});
rtcp_sender.SetRTCPStatus(RtcpMode::kReducedSize);
rtcp_sender.SetRemoteSSRC(kVideoSendSsrcs[0]);
RTCPSender::FeedbackState feedback_state;
EXPECT_EQ(0, rtcp_sender.SendRTCP(
feedback_state, kRtcpNack,
static_cast<int>(nacked_sequence_numbers_.size()),
&nacked_sequence_numbers_.front()));
}
uint16_t sequence_number = header.sequenceNumber;
if (header.ssrc == retransmit_ssrc_ &&
retransmit_ssrc_ != kVideoSendSsrcs[0]) {
// Not kVideoSendSsrcs[0], assume correct RTX packet. Extract sequence
// number.
const uint8_t* rtx_header = packet + header.headerLength;
sequence_number = (rtx_header[0] << 8) + rtx_header[1];
}
auto found = std::find(nacked_sequence_numbers_.begin(),
nacked_sequence_numbers_.end(), sequence_number);
if (found != nacked_sequence_numbers_.end()) {
nacked_sequence_numbers_.erase(found);
if (++retransmit_count_ == kRetransmitTarget) {
EXPECT_EQ(retransmit_ssrc_, header.ssrc);
EXPECT_EQ(retransmit_payload_type_, header.payloadType);
observation_complete_.Set();
}
}
return SEND_PACKET;
}
void ModifyVideoConfigs(
VideoSendStream::Config* send_config,
std::vector<VideoReceiveStream::Config>* receive_configs,
VideoEncoderConfig* encoder_config) override {
transport_adapter_.reset(
new internal::TransportAdapter(send_config->send_transport));
transport_adapter_->Enable();
send_config->rtp.nack.rtp_history_ms = kNackRtpHistoryMs;
send_config->rtp.rtx.payload_type = retransmit_payload_type_;
if (retransmit_ssrc_ != kVideoSendSsrcs[0])
send_config->rtp.rtx.ssrcs.push_back(retransmit_ssrc_);
}
void PerformTest() override {
EXPECT_TRUE(Wait()) << "Timed out while waiting for NACK retransmission.";
}
std::unique_ptr<internal::TransportAdapter> transport_adapter_;
int send_count_;
int retransmit_count_;
uint32_t retransmit_ssrc_;
uint8_t retransmit_payload_type_;
std::vector<uint16_t> nacked_sequence_numbers_;
} test(retransmit_ssrc, retransmit_payload_type);
RunBaseTest(&test);
}
TEST_F(VideoSendStreamTest, RetransmitsNack) {
// Normal NACKs should use the send SSRC.
TestNackRetransmission(kVideoSendSsrcs[0], kFakeVideoSendPayloadType);
}
TEST_F(VideoSendStreamTest, RetransmitsNackOverRtx) {
// NACKs over RTX should use a separate SSRC.
TestNackRetransmission(kSendRtxSsrcs[0], kSendRtxPayloadType);
}
void VideoSendStreamTest::TestPacketFragmentationSize(VideoFormat format,
bool with_fec) {
// Use a fake encoder to output a frame of every size in the range [90, 290],
// for each size making sure that the exact number of payload bytes received
// is correct and that packets are fragmented to respect max packet size.
static const size_t kMaxPacketSize = 128;
static const size_t start = 90;
static const size_t stop = 290;
// Observer that verifies that the expected number of packets and bytes
// arrive for each frame size, from start_size to stop_size.
class FrameFragmentationTest : public test::SendTest,
public EncodedFrameObserver {
public:
FrameFragmentationTest(size_t max_packet_size,
size_t start_size,
size_t stop_size,
bool test_generic_packetization,
bool use_fec)
: SendTest(kLongTimeoutMs),
encoder_(stop),
encoder_factory_(&encoder_),
max_packet_size_(max_packet_size),
stop_size_(stop_size),
test_generic_packetization_(test_generic_packetization),
use_fec_(use_fec),
packet_count_(0),
packets_lost_(0),
last_packet_count_(0),
last_packets_lost_(0),
accumulated_size_(0),
accumulated_payload_(0),
fec_packet_received_(false),
current_size_rtp_(start_size),
current_size_frame_(static_cast<int>(start_size)) {
// Fragmentation required, this test doesn't make sense without it.
encoder_.SetFrameSize(start_size);
RTC_DCHECK_GT(stop_size, max_packet_size);
}
private:
Action OnSendRtp(const uint8_t* packet, size_t size) override {
size_t length = size;
RTPHeader header;
EXPECT_TRUE(parser_->Parse(packet, length, &header));
EXPECT_LE(length, max_packet_size_);
if (use_fec_) {
uint8_t payload_type = packet[header.headerLength];
bool is_fec = header.payloadType == kRedPayloadType &&
payload_type == kUlpfecPayloadType;
if (is_fec) {
fec_packet_received_ = true;
return SEND_PACKET;
}
}
accumulated_size_ += length;
if (use_fec_)
TriggerLossReport(header);
if (test_generic_packetization_) {
size_t overhead = header.headerLength + header.paddingLength;
// Only remove payload header and RED header if the packet actually
// contains payload.
if (length > overhead) {