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Side by Side Diff: media/cast/net/rtcp/rtcp_sender_unittest.cc

Issue 513313004: Cast: Re-factor rtcp_sender.cc into rtcp_builder.cc and do some cleanup (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: removed leaky and unused testing_clock_ Created 6 years, 3 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/memory/scoped_ptr.h"
6 #include "base/test/simple_test_tick_clock.h"
7 #include "media/cast/cast_defines.h"
8 #include "media/cast/cast_environment.h"
9 #include "media/cast/net/cast_transport_defines.h"
10 #include "media/cast/net/pacing/paced_sender.h"
11 #include "media/cast/net/rtcp/receiver_rtcp_event_subscriber.h"
12 #include "media/cast/net/rtcp/rtcp_sender.h"
13 #include "media/cast/net/rtcp/rtcp_utility.h"
14 #include "media/cast/net/rtcp/test_rtcp_packet_builder.h"
15 #include "media/cast/test/fake_single_thread_task_runner.h"
16 #include "testing/gmock/include/gmock/gmock.h"
17
18 namespace media {
19 namespace cast {
20
21 namespace {
22 static const uint32 kSendingSsrc = 0x12345678;
23 static const uint32 kMediaSsrc = 0x87654321;
24 static const base::TimeDelta kDefaultDelay =
25 base::TimeDelta::FromMilliseconds(100);
26
27 RtcpReportBlock GetReportBlock() {
28 RtcpReportBlock report_block;
29 // Initialize remote_ssrc to a "clearly illegal" value.
30 report_block.remote_ssrc = 0xDEAD;
31 report_block.media_ssrc = kMediaSsrc; // SSRC of the RTP packet sender.
32 report_block.fraction_lost = kLoss >> 24;
33 report_block.cumulative_lost = kLoss; // 24 bits valid.
34 report_block.extended_high_sequence_number = kExtendedMax;
35 report_block.jitter = kTestJitter;
36 report_block.last_sr = kLastSr;
37 report_block.delay_since_last_sr = kDelayLastSr;
38 return report_block;
39 }
40
41 } // namespace
42
43 class TestRtcpTransport : public PacedPacketSender {
44 public:
45 TestRtcpTransport() : packet_count_(0) {}
46
47 virtual bool SendRtcpPacket(uint32 ssrc,
48 PacketRef packet) OVERRIDE {
49 EXPECT_EQ(expected_packet_.size(), packet->data.size());
50 if (expected_packet_.size() != packet->data.size())
51 return false;
52 EXPECT_EQ(0, memcmp(&expected_packet_[0],
53 &packet->data[0],
54 packet->data.size()));
55 packet_count_++;
56 return true;
57 }
58
59 virtual bool SendPackets(
60 const SendPacketVector& packets) OVERRIDE {
61 return false;
62 }
63 virtual bool ResendPackets(
64 const SendPacketVector& packets,
65 const DedupInfo& dedup_info) OVERRIDE {
66 return false;
67 }
68
69 virtual void CancelSendingPacket(
70 const PacketKey& packet_key) OVERRIDE {
71 }
72
73 void SetExpectedRtcpPacket(scoped_ptr<Packet> packet) {
74 expected_packet_.swap(*packet);
75 }
76
77 int packet_count() const { return packet_count_; }
78
79 private:
80 Packet expected_packet_;
81 int packet_count_;
82
83 DISALLOW_COPY_AND_ASSIGN(TestRtcpTransport);
84 };
85
86 class RtcpSenderTest : public ::testing::Test {
87 protected:
88 RtcpSenderTest()
89 : testing_clock_(new base::SimpleTestTickClock()),
90 task_runner_(new test::FakeSingleThreadTaskRunner(testing_clock_)),
91 cast_environment_(new CastEnvironment(
92 scoped_ptr<base::TickClock>(testing_clock_).Pass(),
93 task_runner_,
94 task_runner_,
95 task_runner_)),
96 rtcp_sender_(new RtcpSender(&test_transport_, kSendingSsrc)) {}
97
98 base::SimpleTestTickClock* testing_clock_; // Owned by CastEnvironment.
99 TestRtcpTransport test_transport_;
100 scoped_refptr<test::FakeSingleThreadTaskRunner> task_runner_;
101 scoped_refptr<CastEnvironment> cast_environment_;
102 scoped_ptr<RtcpSender> rtcp_sender_;
103
104 DISALLOW_COPY_AND_ASSIGN(RtcpSenderTest);
105 };
106
107 TEST_F(RtcpSenderTest, RtcpReceiverReport) {
108 // Receiver report with report block.
109 TestRtcpPacketBuilder p2;
110 p2.AddRr(kSendingSsrc, 1);
111 p2.AddRb(kMediaSsrc);
112 test_transport_.SetExpectedRtcpPacket(p2.GetPacket().Pass());
113
114 RtcpReportBlock report_block = GetReportBlock();
115
116 rtcp_sender_->SendRtcpFromRtpReceiver(
117 &report_block, NULL, NULL, NULL, kDefaultDelay);
118
119 EXPECT_EQ(1, test_transport_.packet_count());
120 }
121
122 TEST_F(RtcpSenderTest, RtcpReceiverReportWithRrtr) {
123 // Receiver report with report block.
124 TestRtcpPacketBuilder p;
125 p.AddRr(kSendingSsrc, 1);
126 p.AddRb(kMediaSsrc);
127 p.AddXrHeader(kSendingSsrc);
128 p.AddXrRrtrBlock();
129 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
130
131 RtcpReportBlock report_block = GetReportBlock();
132
133 RtcpReceiverReferenceTimeReport rrtr;
134 rrtr.ntp_seconds = kNtpHigh;
135 rrtr.ntp_fraction = kNtpLow;
136
137 rtcp_sender_->SendRtcpFromRtpReceiver(
138 &report_block,
139 &rrtr,
140 NULL,
141 NULL,
142 kDefaultDelay);
143
144 EXPECT_EQ(1, test_transport_.packet_count());
145 }
146
147 TEST_F(RtcpSenderTest, RtcpReceiverReportWithCast) {
148 // Receiver report with report block.
149 TestRtcpPacketBuilder p;
150 p.AddRr(kSendingSsrc, 1);
151 p.AddRb(kMediaSsrc);
152 p.AddCast(kSendingSsrc, kMediaSsrc, kDefaultDelay);
153 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
154
155 RtcpReportBlock report_block = GetReportBlock();
156
157 RtcpCastMessage cast_message(kMediaSsrc);
158 cast_message.ack_frame_id = kAckFrameId;
159 PacketIdSet missing_packets;
160 cast_message.missing_frames_and_packets[kLostFrameId] = missing_packets;
161
162 missing_packets.insert(kLostPacketId1);
163 missing_packets.insert(kLostPacketId2);
164 missing_packets.insert(kLostPacketId3);
165 cast_message.missing_frames_and_packets[kFrameIdWithLostPackets] =
166 missing_packets;
167
168 rtcp_sender_->SendRtcpFromRtpReceiver(
169 &report_block,
170 NULL,
171 &cast_message,
172 NULL,
173 kDefaultDelay);
174
175 EXPECT_EQ(1, test_transport_.packet_count());
176 }
177
178 TEST_F(RtcpSenderTest, RtcpReceiverReportWithRrtraAndCastMessage) {
179 TestRtcpPacketBuilder p;
180 p.AddRr(kSendingSsrc, 1);
181 p.AddRb(kMediaSsrc);
182 p.AddXrHeader(kSendingSsrc);
183 p.AddXrRrtrBlock();
184 p.AddCast(kSendingSsrc, kMediaSsrc, kDefaultDelay);
185 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
186
187 RtcpReportBlock report_block = GetReportBlock();
188
189 RtcpReceiverReferenceTimeReport rrtr;
190 rrtr.ntp_seconds = kNtpHigh;
191 rrtr.ntp_fraction = kNtpLow;
192
193 RtcpCastMessage cast_message(kMediaSsrc);
194 cast_message.ack_frame_id = kAckFrameId;
195 PacketIdSet missing_packets;
196 cast_message.missing_frames_and_packets[kLostFrameId] = missing_packets;
197
198 missing_packets.insert(kLostPacketId1);
199 missing_packets.insert(kLostPacketId2);
200 missing_packets.insert(kLostPacketId3);
201 cast_message.missing_frames_and_packets[kFrameIdWithLostPackets] =
202 missing_packets;
203
204 rtcp_sender_->SendRtcpFromRtpReceiver(
205 &report_block,
206 &rrtr,
207 &cast_message,
208 NULL,
209 kDefaultDelay);
210
211 EXPECT_EQ(1, test_transport_.packet_count());
212 }
213
214 TEST_F(RtcpSenderTest, RtcpReceiverReportWithRrtrCastMessageAndLog) {
215 static const uint32 kTimeBaseMs = 12345678;
216 static const uint32 kTimeDelayMs = 10;
217
218 TestRtcpPacketBuilder p;
219 p.AddRr(kSendingSsrc, 1);
220 p.AddRb(kMediaSsrc);
221 p.AddXrHeader(kSendingSsrc);
222 p.AddXrRrtrBlock();
223 p.AddCast(kSendingSsrc, kMediaSsrc, kDefaultDelay);
224 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
225
226 RtcpReportBlock report_block = GetReportBlock();
227
228 RtcpReceiverReferenceTimeReport rrtr;
229 rrtr.ntp_seconds = kNtpHigh;
230 rrtr.ntp_fraction = kNtpLow;
231
232 RtcpCastMessage cast_message(kMediaSsrc);
233 cast_message.ack_frame_id = kAckFrameId;
234 PacketIdSet missing_packets;
235 cast_message.missing_frames_and_packets[kLostFrameId] = missing_packets;
236
237 missing_packets.insert(kLostPacketId1);
238 missing_packets.insert(kLostPacketId2);
239 missing_packets.insert(kLostPacketId3);
240 cast_message.missing_frames_and_packets[kFrameIdWithLostPackets] =
241 missing_packets;
242
243 ReceiverRtcpEventSubscriber event_subscriber(500, VIDEO_EVENT);
244 ReceiverRtcpEventSubscriber::RtcpEventMultiMap rtcp_events;
245
246 rtcp_sender_->SendRtcpFromRtpReceiver(
247 &report_block,
248 &rrtr,
249 &cast_message,
250 &rtcp_events,
251 kDefaultDelay);
252
253 base::SimpleTestTickClock testing_clock;
254 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeBaseMs));
255
256 p.AddReceiverLog(kSendingSsrc);
257 p.AddReceiverFrameLog(kRtpTimestamp, 2, kTimeBaseMs);
258 p.AddReceiverEventLog(0, FRAME_ACK_SENT, 0);
259 p.AddReceiverEventLog(kLostPacketId1, PACKET_RECEIVED, kTimeDelayMs);
260
261 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
262
263 FrameEvent frame_event;
264 frame_event.rtp_timestamp = kRtpTimestamp;
265 frame_event.type = FRAME_ACK_SENT;
266 frame_event.media_type = VIDEO_EVENT;
267 frame_event.timestamp = testing_clock.NowTicks();
268 event_subscriber.OnReceiveFrameEvent(frame_event);
269 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeDelayMs));
270
271 PacketEvent packet_event;
272 packet_event.rtp_timestamp = kRtpTimestamp;
273 packet_event.type = PACKET_RECEIVED;
274 packet_event.media_type = VIDEO_EVENT;
275 packet_event.timestamp = testing_clock.NowTicks();
276 packet_event.packet_id = kLostPacketId1;
277 event_subscriber.OnReceivePacketEvent(packet_event);
278 event_subscriber.GetRtcpEventsAndReset(&rtcp_events);
279 EXPECT_EQ(2u, rtcp_events.size());
280
281 rtcp_sender_->SendRtcpFromRtpReceiver(
282 &report_block,
283 &rrtr,
284 &cast_message,
285 &rtcp_events,
286 kDefaultDelay);
287
288 EXPECT_EQ(2, test_transport_.packet_count());
289 }
290
291 TEST_F(RtcpSenderTest, RtcpReceiverReportWithOversizedFrameLog) {
292 static const uint32 kTimeBaseMs = 12345678;
293 static const uint32 kTimeDelayMs = 10;
294
295 TestRtcpPacketBuilder p;
296 p.AddRr(kSendingSsrc, 1);
297 p.AddRb(kMediaSsrc);
298
299 RtcpReportBlock report_block = GetReportBlock();
300
301 base::SimpleTestTickClock testing_clock;
302 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeBaseMs));
303
304 p.AddReceiverLog(kSendingSsrc);
305
306 int remaining_bytes = kMaxReceiverLogBytes;
307 remaining_bytes -= kRtcpCastLogHeaderSize;
308
309 remaining_bytes -= kRtcpReceiverFrameLogSize;
310 int num_events = remaining_bytes / kRtcpReceiverEventLogSize;
311 EXPECT_LE(num_events, static_cast<int>(kRtcpMaxReceiverLogMessages));
312 // Only the last |num_events| events are sent due to receiver log size cap.
313 p.AddReceiverFrameLog(
314 kRtpTimestamp + 2345,
315 num_events,
316 kTimeBaseMs + (kRtcpMaxReceiverLogMessages - num_events) * kTimeDelayMs);
317 for (int i = 0; i < num_events; i++) {
318 p.AddReceiverEventLog(
319 kLostPacketId1, PACKET_RECEIVED,
320 static_cast<uint16>(kTimeDelayMs * i));
321 }
322
323 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
324
325 ReceiverRtcpEventSubscriber event_subscriber(500, VIDEO_EVENT);
326 FrameEvent frame_event;
327 frame_event.rtp_timestamp = kRtpTimestamp;
328 frame_event.type = FRAME_ACK_SENT;
329 frame_event.media_type = VIDEO_EVENT;
330 frame_event.timestamp = testing_clock.NowTicks();
331 event_subscriber.OnReceiveFrameEvent(frame_event);
332
333 for (size_t i = 0; i < kRtcpMaxReceiverLogMessages; ++i) {
334 PacketEvent packet_event;
335 packet_event.rtp_timestamp = kRtpTimestamp + 2345;
336 packet_event.type = PACKET_RECEIVED;
337 packet_event.media_type = VIDEO_EVENT;
338 packet_event.timestamp = testing_clock.NowTicks();
339 packet_event.packet_id = kLostPacketId1;
340 event_subscriber.OnReceivePacketEvent(packet_event);
341 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeDelayMs));
342 }
343
344 ReceiverRtcpEventSubscriber::RtcpEventMultiMap rtcp_events;
345 event_subscriber.GetRtcpEventsAndReset(&rtcp_events);
346
347 rtcp_sender_->SendRtcpFromRtpReceiver(
348 &report_block,
349 NULL,
350 NULL,
351 &rtcp_events,
352 kDefaultDelay);
353
354 EXPECT_EQ(1, test_transport_.packet_count());
355 }
356
357 TEST_F(RtcpSenderTest, RtcpReceiverReportWithTooManyLogFrames) {
358 static const uint32 kTimeBaseMs = 12345678;
359 static const uint32 kTimeDelayMs = 10;
360
361 TestRtcpPacketBuilder p;
362 p.AddRr(kSendingSsrc, 1);
363 p.AddRb(kMediaSsrc);
364
365 RtcpReportBlock report_block = GetReportBlock();
366
367 base::SimpleTestTickClock testing_clock;
368 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeBaseMs));
369
370 p.AddReceiverLog(kSendingSsrc);
371
372 int remaining_bytes = kMaxReceiverLogBytes;
373 remaining_bytes -= kRtcpCastLogHeaderSize;
374
375 int num_events =
376 remaining_bytes / (kRtcpReceiverFrameLogSize + kRtcpReceiverEventLogSize);
377
378 // The last |num_events| events are sent due to receiver log size cap.
379 for (size_t i = kRtcpMaxReceiverLogMessages - num_events;
380 i < kRtcpMaxReceiverLogMessages;
381 ++i) {
382 p.AddReceiverFrameLog(kRtpTimestamp + i, 1, kTimeBaseMs + i * kTimeDelayMs);
383 p.AddReceiverEventLog(0, FRAME_ACK_SENT, 0);
384 }
385 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
386
387 ReceiverRtcpEventSubscriber event_subscriber(500, VIDEO_EVENT);
388
389 for (size_t i = 0; i < kRtcpMaxReceiverLogMessages; ++i) {
390 FrameEvent frame_event;
391 frame_event.rtp_timestamp = kRtpTimestamp + static_cast<int>(i);
392 frame_event.type = FRAME_ACK_SENT;
393 frame_event.media_type = VIDEO_EVENT;
394 frame_event.timestamp = testing_clock.NowTicks();
395 event_subscriber.OnReceiveFrameEvent(frame_event);
396 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeDelayMs));
397 }
398
399 ReceiverRtcpEventSubscriber::RtcpEventMultiMap rtcp_events;
400 event_subscriber.GetRtcpEventsAndReset(&rtcp_events);
401
402 rtcp_sender_->SendRtcpFromRtpReceiver(
403 &report_block,
404 NULL,
405 NULL,
406 &rtcp_events,
407 kDefaultDelay);
408
409 EXPECT_EQ(1, test_transport_.packet_count());
410 }
411
412 TEST_F(RtcpSenderTest, RtcpReceiverReportWithOldLogFrames) {
413 static const uint32 kTimeBaseMs = 12345678;
414
415 TestRtcpPacketBuilder p;
416 p.AddRr(kSendingSsrc, 1);
417 p.AddRb(kMediaSsrc);
418
419 RtcpReportBlock report_block = GetReportBlock();
420
421 base::SimpleTestTickClock testing_clock;
422 testing_clock.Advance(base::TimeDelta::FromMilliseconds(kTimeBaseMs));
423
424 p.AddReceiverLog(kSendingSsrc);
425
426 // Log 11 events for a single frame, each |kTimeBetweenEventsMs| apart.
427 // Only last 10 events will be sent because the first event is more than
428 // 4095 milliseconds away from latest event.
429 const int kTimeBetweenEventsMs = 410;
430 p.AddReceiverFrameLog(kRtpTimestamp, 10, kTimeBaseMs + kTimeBetweenEventsMs);
431 for (int i = 0; i < 10; ++i) {
432 p.AddReceiverEventLog(0, FRAME_ACK_SENT, i * kTimeBetweenEventsMs);
433 }
434 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
435
436 ReceiverRtcpEventSubscriber event_subscriber(500, VIDEO_EVENT);
437 for (int i = 0; i < 11; ++i) {
438 FrameEvent frame_event;
439 frame_event.rtp_timestamp = kRtpTimestamp;
440 frame_event.type = FRAME_ACK_SENT;
441 frame_event.media_type = VIDEO_EVENT;
442 frame_event.timestamp = testing_clock.NowTicks();
443 event_subscriber.OnReceiveFrameEvent(frame_event);
444 testing_clock.Advance(
445 base::TimeDelta::FromMilliseconds(kTimeBetweenEventsMs));
446 }
447
448 ReceiverRtcpEventSubscriber::RtcpEventMultiMap rtcp_events;
449 event_subscriber.GetRtcpEventsAndReset(&rtcp_events);
450
451 rtcp_sender_->SendRtcpFromRtpReceiver(
452 &report_block,
453 NULL,
454 NULL,
455 &rtcp_events,
456 kDefaultDelay);
457
458 EXPECT_EQ(1, test_transport_.packet_count());
459 }
460
461 TEST_F(RtcpSenderTest, RtcpReceiverReportRedundancy) {
462 uint32 time_base_ms = 12345678;
463 int kTimeBetweenEventsMs = 10;
464
465 RtcpReportBlock report_block = GetReportBlock();
466
467 base::SimpleTestTickClock testing_clock;
468 testing_clock.Advance(base::TimeDelta::FromMilliseconds(time_base_ms));
469
470 ReceiverRtcpEventSubscriber event_subscriber(500, VIDEO_EVENT);
471 size_t packet_count = kReceiveLogMessageHistorySize + 10;
472 for (size_t i = 0; i < packet_count; i++) {
473 TestRtcpPacketBuilder p;
474 p.AddRr(kSendingSsrc, 1);
475 p.AddRb(kMediaSsrc);
476
477 p.AddReceiverLog(kSendingSsrc);
478
479 if (i >= kSecondRedundancyOffset) {
480 p.AddReceiverFrameLog(
481 kRtpTimestamp,
482 1,
483 time_base_ms - kSecondRedundancyOffset * kTimeBetweenEventsMs);
484 p.AddReceiverEventLog(0, FRAME_ACK_SENT, 0);
485 }
486 if (i >= kFirstRedundancyOffset) {
487 p.AddReceiverFrameLog(
488 kRtpTimestamp,
489 1,
490 time_base_ms - kFirstRedundancyOffset * kTimeBetweenEventsMs);
491 p.AddReceiverEventLog(0, FRAME_ACK_SENT, 0);
492 }
493 p.AddReceiverFrameLog(kRtpTimestamp, 1, time_base_ms);
494 p.AddReceiverEventLog(0, FRAME_ACK_SENT, 0);
495
496 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
497
498 FrameEvent frame_event;
499 frame_event.rtp_timestamp = kRtpTimestamp;
500 frame_event.type = FRAME_ACK_SENT;
501 frame_event.media_type = VIDEO_EVENT;
502 frame_event.timestamp = testing_clock.NowTicks();
503 event_subscriber.OnReceiveFrameEvent(frame_event);
504
505 ReceiverRtcpEventSubscriber::RtcpEventMultiMap rtcp_events;
506 event_subscriber.GetRtcpEventsAndReset(&rtcp_events);
507
508 rtcp_sender_->SendRtcpFromRtpReceiver(
509 &report_block,
510 NULL,
511 NULL,
512 &rtcp_events,
513 kDefaultDelay);
514
515 testing_clock.Advance(
516 base::TimeDelta::FromMilliseconds(kTimeBetweenEventsMs));
517 time_base_ms += kTimeBetweenEventsMs;
518 }
519
520 EXPECT_EQ(static_cast<int>(packet_count), test_transport_.packet_count());
521 }
522
523 TEST_F(RtcpSenderTest, RtcpSenderReport) {
524 RtcpSenderInfo sender_info;
525 sender_info.ntp_seconds = kNtpHigh;
526 sender_info.ntp_fraction = kNtpLow;
527 sender_info.rtp_timestamp = kRtpTimestamp;
528 sender_info.send_packet_count = kSendPacketCount;
529 sender_info.send_octet_count = kSendOctetCount;
530
531 // Sender report.
532 TestRtcpPacketBuilder p;
533 p.AddSr(kSendingSsrc, 0);
534 test_transport_.SetExpectedRtcpPacket(p.GetPacket().Pass());
535
536 rtcp_sender_->SendRtcpFromRtpSender(sender_info);
537
538 EXPECT_EQ(1, test_transport_.packet_count());
539 }
540
541 } // namespace cast
542 } // namespace media
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