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| 1 // Copyright 2013 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/framer/cast_message_builder.h" |
| 8 #include "media/cast/rtcp/rtcp.h" |
| 9 #include "media/cast/rtp_common/rtp_defines.h" |
| 10 #include "testing/gtest/include/gtest/gtest.h" |
| 11 |
| 12 namespace media { |
| 13 namespace cast { |
| 14 |
| 15 static const uint32 kSsrc = 0x1234; |
| 16 static const uint32 kShortTimeIncrementMs = 10; |
| 17 static const uint32 kLongTimeIncrementMs = 40; |
| 18 static const int64 kStartMillisecond = 123456789; |
| 19 |
| 20 typedef std::map<uint8, int> MissingPacketsMap; |
| 21 |
| 22 class NackFeedbackVerification : public RtpPayloadFeedback { |
| 23 public: |
| 24 NackFeedbackVerification() |
| 25 : triggered_(false), |
| 26 missing_packets_(), |
| 27 last_frame_acked_(0) {} |
| 28 |
| 29 |
| 30 virtual void RequestKeyFrame() OVERRIDE { |
| 31 request_key_frame_ = true; |
| 32 } |
| 33 |
| 34 virtual void CastFeedback(const RtcpCastMessage& cast_feedback) OVERRIDE { |
| 35 EXPECT_EQ(kSsrc, cast_feedback.media_ssrc_); |
| 36 |
| 37 last_frame_acked_ = cast_feedback.ack_frame_id_; |
| 38 |
| 39 MissingFramesAndPacketsMap::const_iterator frame_it = |
| 40 cast_feedback.missing_frames_and_packets_.begin(); |
| 41 |
| 42 // Keep track of the number of missing packets per frame. |
| 43 missing_packets_.clear(); |
| 44 while (frame_it != cast_feedback.missing_frames_and_packets_.end()) { |
| 45 missing_packets_.insert( |
| 46 std::make_pair(frame_it->first, frame_it->second.size())); |
| 47 ++frame_it; |
| 48 } |
| 49 triggered_ = true; |
| 50 } |
| 51 |
| 52 int num_missing_packets(uint8 frame_id) { |
| 53 MissingPacketsMap::iterator it; |
| 54 it = missing_packets_.find(frame_id); |
| 55 if (it == missing_packets_.end()) return 0; |
| 56 |
| 57 return it->second; |
| 58 } |
| 59 |
| 60 // Holds value for one call. |
| 61 bool triggered() { |
| 62 bool ret_val = triggered_; |
| 63 triggered_ = false; |
| 64 return ret_val; |
| 65 } |
| 66 |
| 67 bool request_key_frame() { |
| 68 bool ret_val = request_key_frame_; |
| 69 request_key_frame_ = false; |
| 70 return ret_val; |
| 71 } |
| 72 uint8 last_frame_acked() { return last_frame_acked_; } |
| 73 |
| 74 private: |
| 75 bool triggered_; |
| 76 MissingPacketsMap missing_packets_; // Missing packets per frame. |
| 77 uint8 last_frame_acked_; |
| 78 bool request_key_frame_; |
| 79 }; |
| 80 |
| 81 class CastMessageBuilderTest : public ::testing::Test { |
| 82 protected: |
| 83 CastMessageBuilderTest() |
| 84 : cast_msg_builder_(new CastMessageBuilder(&feedback_, |
| 85 &frame_id_map_, |
| 86 kSsrc, |
| 87 true, |
| 88 0)) { |
| 89 rtp_header_.webrtc.header.ssrc = kSsrc; |
| 90 rtp_header_.is_key_frame = false; |
| 91 testing_clock_.Advance( |
| 92 base::TimeDelta::FromMilliseconds(kStartMillisecond)); |
| 93 cast_msg_builder_->set_clock(&testing_clock_); |
| 94 } |
| 95 |
| 96 ~CastMessageBuilderTest() {} |
| 97 |
| 98 void SetFrameId(uint8 frame_id) { |
| 99 rtp_header_.frame_id = frame_id; |
| 100 } |
| 101 |
| 102 void SetPacketId(uint16 packet_id) { |
| 103 rtp_header_.packet_id = packet_id; |
| 104 } |
| 105 |
| 106 void SetMaxPacketId(uint16 max_packet_id) { |
| 107 rtp_header_.max_packet_id = max_packet_id; |
| 108 } |
| 109 |
| 110 void SetKeyFrame(bool is_key) { |
| 111 rtp_header_.is_key_frame = is_key; |
| 112 } |
| 113 |
| 114 void SetReferenceFrameId(uint8 reference_frame_id) { |
| 115 rtp_header_.is_reference = true; |
| 116 rtp_header_.reference_frame_id = reference_frame_id; |
| 117 } |
| 118 |
| 119 void InsertPacket() { |
| 120 bool complete = false; |
| 121 frame_id_map_.InsertPacket(rtp_header_, &complete); |
| 122 if (complete) { |
| 123 cast_msg_builder_->CompleteFrameReceived(rtp_header_.frame_id, |
| 124 rtp_header_.is_key_frame); |
| 125 } |
| 126 cast_msg_builder_->UpdateCastMessage(); |
| 127 } |
| 128 |
| 129 void SetDecoderSlowerThanMaxFrameRate(int max_unacked_frames) { |
| 130 cast_msg_builder_.reset(new CastMessageBuilder(&feedback_, |
| 131 &frame_id_map_, |
| 132 kSsrc, |
| 133 false, |
| 134 max_unacked_frames)); |
| 135 } |
| 136 |
| 137 NackFeedbackVerification feedback_; |
| 138 scoped_ptr<CastMessageBuilder> cast_msg_builder_; |
| 139 RtpCastHeader rtp_header_; |
| 140 FrameIdMap frame_id_map_; |
| 141 base::SimpleTestTickClock testing_clock_; |
| 142 }; |
| 143 |
| 144 TEST_F(CastMessageBuilderTest, StartWithAKeyFrame) { |
| 145 SetFrameId(3); |
| 146 SetPacketId(0); |
| 147 SetMaxPacketId(0); |
| 148 InsertPacket(); |
| 149 // Should not trigger ack. |
| 150 EXPECT_FALSE(feedback_.triggered()); |
| 151 SetFrameId(5); |
| 152 SetPacketId(0); |
| 153 SetMaxPacketId(0); |
| 154 SetKeyFrame(true); |
| 155 InsertPacket(); |
| 156 frame_id_map_.RemoveOldFrames(5); // Simulate 5 being pulled for rendering. |
| 157 testing_clock_.Advance( |
| 158 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 159 cast_msg_builder_->UpdateCastMessage(); |
| 160 EXPECT_TRUE(feedback_.triggered()); |
| 161 EXPECT_EQ(5, feedback_.last_frame_acked()); |
| 162 } |
| 163 |
| 164 TEST_F(CastMessageBuilderTest, OneFrameNackList) { |
| 165 SetFrameId(0); |
| 166 SetPacketId(4); |
| 167 SetMaxPacketId(10); |
| 168 InsertPacket(); |
| 169 testing_clock_.Advance( |
| 170 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 171 EXPECT_FALSE(feedback_.triggered()); |
| 172 testing_clock_.Advance( |
| 173 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 174 SetPacketId(5); |
| 175 InsertPacket(); |
| 176 EXPECT_TRUE(feedback_.triggered()); |
| 177 EXPECT_EQ(4, feedback_.num_missing_packets(0)); |
| 178 } |
| 179 |
| 180 TEST_F(CastMessageBuilderTest, CompleteFrameMissing) { |
| 181 // TODO(mikhal): Add indication. |
| 182 SetFrameId(0); |
| 183 SetPacketId(2); |
| 184 SetMaxPacketId(5); |
| 185 InsertPacket(); |
| 186 testing_clock_.Advance( |
| 187 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 188 SetFrameId(2); |
| 189 SetPacketId(2); |
| 190 SetMaxPacketId(5); |
| 191 InsertPacket(); |
| 192 } |
| 193 |
| 194 TEST_F(CastMessageBuilderTest, FastForwardAck) { |
| 195 SetFrameId(1); |
| 196 SetPacketId(0); |
| 197 SetMaxPacketId(0); |
| 198 InsertPacket(); |
| 199 EXPECT_FALSE(feedback_.triggered()); |
| 200 testing_clock_.Advance( |
| 201 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 202 SetFrameId(2); |
| 203 SetPacketId(0); |
| 204 SetMaxPacketId(0); |
| 205 InsertPacket(); |
| 206 EXPECT_TRUE(feedback_.triggered()); |
| 207 EXPECT_EQ(255, feedback_.last_frame_acked()); |
| 208 testing_clock_.Advance( |
| 209 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 210 SetFrameId(0); |
| 211 SetPacketId(0); |
| 212 SetMaxPacketId(0); |
| 213 SetKeyFrame(true); |
| 214 InsertPacket(); |
| 215 EXPECT_TRUE(feedback_.triggered()); |
| 216 EXPECT_EQ(2, feedback_.last_frame_acked()); |
| 217 } |
| 218 |
| 219 TEST_F(CastMessageBuilderTest, RemoveOldFrames) { |
| 220 SetFrameId(1); |
| 221 SetPacketId(0); |
| 222 SetMaxPacketId(1); |
| 223 InsertPacket(); |
| 224 EXPECT_FALSE(feedback_.triggered()); |
| 225 testing_clock_.Advance( |
| 226 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 227 SetFrameId(2); |
| 228 SetPacketId(0); |
| 229 SetMaxPacketId(0); |
| 230 InsertPacket(); |
| 231 EXPECT_TRUE(feedback_.triggered()); |
| 232 testing_clock_.Advance( |
| 233 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 234 SetFrameId(3); |
| 235 SetPacketId(0); |
| 236 SetMaxPacketId(5); |
| 237 InsertPacket(); |
| 238 EXPECT_TRUE(feedback_.triggered()); |
| 239 EXPECT_EQ(255, feedback_.last_frame_acked()); |
| 240 testing_clock_.Advance( |
| 241 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 242 SetFrameId(5); |
| 243 SetPacketId(0); |
| 244 SetMaxPacketId(0); |
| 245 SetKeyFrame(true); |
| 246 InsertPacket(); |
| 247 testing_clock_.Advance( |
| 248 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 249 frame_id_map_.RemoveOldFrames(5); // Simulate 5 being pulled for rendering. |
| 250 cast_msg_builder_->UpdateCastMessage(); |
| 251 EXPECT_TRUE(feedback_.triggered()); |
| 252 EXPECT_EQ(5, feedback_.last_frame_acked()); |
| 253 testing_clock_.Advance( |
| 254 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 255 SetFrameId(1); |
| 256 SetPacketId(1); |
| 257 SetMaxPacketId(1); |
| 258 InsertPacket(); |
| 259 EXPECT_FALSE(feedback_.triggered()); |
| 260 testing_clock_.Advance( |
| 261 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 262 InsertPacket(); |
| 263 EXPECT_TRUE(feedback_.triggered()); |
| 264 EXPECT_EQ(5, feedback_.last_frame_acked()); |
| 265 } |
| 266 |
| 267 TEST_F(CastMessageBuilderTest, WrapFastForward) { |
| 268 SetFrameId(254); |
| 269 SetPacketId(0); |
| 270 SetMaxPacketId(1); |
| 271 SetKeyFrame(true); |
| 272 InsertPacket(); |
| 273 EXPECT_FALSE(feedback_.triggered()); |
| 274 testing_clock_.Advance( |
| 275 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 276 SetFrameId(255); |
| 277 SetPacketId(0); |
| 278 SetMaxPacketId(0); |
| 279 SetKeyFrame(false); |
| 280 InsertPacket(); |
| 281 EXPECT_TRUE(feedback_.triggered()); |
| 282 EXPECT_EQ(253, feedback_.last_frame_acked()); |
| 283 testing_clock_.Advance( |
| 284 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 285 SetFrameId(0); |
| 286 SetPacketId(0); |
| 287 SetMaxPacketId(0); |
| 288 SetKeyFrame(false); |
| 289 InsertPacket(); |
| 290 EXPECT_TRUE(feedback_.triggered()); |
| 291 EXPECT_EQ(253, feedback_.last_frame_acked()); |
| 292 testing_clock_.Advance( |
| 293 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 294 SetFrameId(254); |
| 295 SetPacketId(1); |
| 296 SetMaxPacketId(1); |
| 297 SetKeyFrame(true); |
| 298 InsertPacket(); |
| 299 EXPECT_TRUE(feedback_.triggered()); |
| 300 EXPECT_EQ(0, feedback_.last_frame_acked()); |
| 301 } |
| 302 |
| 303 TEST_F(CastMessageBuilderTest, NackUntilMaxReceivedPacket) { |
| 304 SetFrameId(0); |
| 305 SetPacketId(0); |
| 306 SetMaxPacketId(20); |
| 307 SetKeyFrame(true); |
| 308 InsertPacket(); |
| 309 testing_clock_.Advance( |
| 310 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 311 SetPacketId(5); |
| 312 InsertPacket(); |
| 313 EXPECT_TRUE(feedback_.triggered()); |
| 314 EXPECT_EQ(4, feedback_.num_missing_packets(0)); |
| 315 } |
| 316 |
| 317 TEST_F(CastMessageBuilderTest, NackUntilMaxReceivedPacketNextFrame) { |
| 318 SetFrameId(0); |
| 319 SetPacketId(0); |
| 320 SetMaxPacketId(20); |
| 321 SetKeyFrame(true); |
| 322 InsertPacket(); |
| 323 testing_clock_.Advance( |
| 324 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 325 SetPacketId(5); |
| 326 InsertPacket(); |
| 327 testing_clock_.Advance( |
| 328 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 329 EXPECT_TRUE(feedback_.triggered()); |
| 330 EXPECT_EQ(4, feedback_.num_missing_packets(0)); |
| 331 SetFrameId(1); |
| 332 SetMaxPacketId(2); |
| 333 SetPacketId(0); |
| 334 SetKeyFrame(false); |
| 335 InsertPacket(); |
| 336 testing_clock_.Advance( |
| 337 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 338 EXPECT_TRUE(feedback_.triggered()); |
| 339 EXPECT_EQ(21 - 2, feedback_.num_missing_packets(0)); |
| 340 } |
| 341 |
| 342 TEST_F(CastMessageBuilderTest, NackUntilMaxReceivedPacketNextKey) { |
| 343 SetFrameId(0); |
| 344 SetPacketId(0); |
| 345 SetMaxPacketId(20); |
| 346 SetKeyFrame(true); |
| 347 InsertPacket(); |
| 348 testing_clock_.Advance( |
| 349 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 350 SetPacketId(5); |
| 351 InsertPacket(); |
| 352 testing_clock_.Advance( |
| 353 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 354 EXPECT_TRUE(feedback_.triggered()); |
| 355 EXPECT_EQ(4, feedback_.num_missing_packets(0)); |
| 356 SetFrameId(1); |
| 357 SetMaxPacketId(0); |
| 358 SetPacketId(0); |
| 359 SetKeyFrame(true); |
| 360 InsertPacket(); |
| 361 testing_clock_.Advance( |
| 362 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 363 EXPECT_TRUE(feedback_.triggered()); |
| 364 EXPECT_EQ(0, feedback_.num_missing_packets(0)); |
| 365 } |
| 366 |
| 367 TEST_F(CastMessageBuilderTest, Reset) { |
| 368 InsertPacket(); |
| 369 testing_clock_.Advance( |
| 370 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 371 cast_msg_builder_->Reset(); |
| 372 frame_id_map_.Clear(); |
| 373 // Should reset nack list state and request a key frame. |
| 374 cast_msg_builder_->UpdateCastMessage(); |
| 375 EXPECT_TRUE(feedback_.triggered()); |
| 376 EXPECT_EQ(0, feedback_.num_missing_packets(0)); |
| 377 } |
| 378 |
| 379 TEST_F(CastMessageBuilderTest, DeltaAfterReset) { |
| 380 SetFrameId(0); |
| 381 SetPacketId(0); |
| 382 SetMaxPacketId(0); |
| 383 SetKeyFrame(true); |
| 384 InsertPacket(); |
| 385 EXPECT_TRUE(feedback_.triggered()); |
| 386 EXPECT_EQ(0, feedback_.num_missing_packets(0)); |
| 387 testing_clock_.Advance( |
| 388 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 389 cast_msg_builder_->Reset(); |
| 390 SetFrameId(1); |
| 391 SetPacketId(0); |
| 392 SetMaxPacketId(0); |
| 393 SetKeyFrame(true); |
| 394 EXPECT_FALSE(feedback_.triggered()); |
| 395 } |
| 396 |
| 397 TEST_F(CastMessageBuilderTest, BasicRps) { |
| 398 SetFrameId(0); |
| 399 SetPacketId(0); |
| 400 SetMaxPacketId(0); |
| 401 SetKeyFrame(true); |
| 402 InsertPacket(); |
| 403 testing_clock_.Advance( |
| 404 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 405 EXPECT_TRUE(feedback_.triggered()); |
| 406 EXPECT_EQ(0, feedback_.last_frame_acked()); |
| 407 SetFrameId(3); |
| 408 SetKeyFrame(false); |
| 409 SetReferenceFrameId(0); |
| 410 InsertPacket(); |
| 411 EXPECT_TRUE(feedback_.triggered()); |
| 412 EXPECT_EQ(0, feedback_.last_frame_acked()); |
| 413 testing_clock_.Advance( |
| 414 base::TimeDelta::FromMilliseconds(kLongTimeIncrementMs)); |
| 415 frame_id_map_.RemoveOldFrames(3); // Simulate 3 being pulled for rendering. |
| 416 cast_msg_builder_->UpdateCastMessage(); |
| 417 EXPECT_TRUE(feedback_.triggered()); |
| 418 EXPECT_EQ(3, feedback_.last_frame_acked()); |
| 419 } |
| 420 |
| 421 TEST_F(CastMessageBuilderTest, InOrderRps) { |
| 422 // Create a pattern - skip to rps, and don't look back. |
| 423 SetFrameId(0); |
| 424 SetPacketId(0); |
| 425 SetMaxPacketId(0); |
| 426 SetKeyFrame(true); |
| 427 InsertPacket(); |
| 428 testing_clock_.Advance( |
| 429 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 430 EXPECT_TRUE(feedback_.triggered()); |
| 431 EXPECT_EQ(0, feedback_.last_frame_acked()); |
| 432 SetFrameId(1); |
| 433 SetPacketId(0); |
| 434 SetMaxPacketId(1); |
| 435 SetKeyFrame(false); |
| 436 InsertPacket(); |
| 437 testing_clock_.Advance( |
| 438 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 439 EXPECT_FALSE(feedback_.triggered()); |
| 440 SetFrameId(3); |
| 441 SetPacketId(0); |
| 442 SetMaxPacketId(0); |
| 443 SetKeyFrame(false); |
| 444 SetReferenceFrameId(0); |
| 445 InsertPacket(); |
| 446 testing_clock_.Advance( |
| 447 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 448 frame_id_map_.RemoveOldFrames(3); // Simulate 3 being pulled for rendering. |
| 449 testing_clock_.Advance( |
| 450 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 451 cast_msg_builder_->UpdateCastMessage(); |
| 452 EXPECT_TRUE(feedback_.triggered()); |
| 453 EXPECT_EQ(3, feedback_.last_frame_acked()); |
| 454 // Make an old frame complete - should not trigger an ack. |
| 455 SetFrameId(1); |
| 456 SetPacketId(1); |
| 457 SetMaxPacketId(1); |
| 458 SetKeyFrame(false); |
| 459 InsertPacket(); |
| 460 testing_clock_.Advance( |
| 461 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 462 EXPECT_FALSE(feedback_.triggered()); |
| 463 EXPECT_EQ(3, feedback_.last_frame_acked()); |
| 464 } |
| 465 |
| 466 TEST_F(CastMessageBuilderTest, SlowDownAck) { |
| 467 SetDecoderSlowerThanMaxFrameRate(3); |
| 468 SetFrameId(0); |
| 469 SetPacketId(0); |
| 470 SetMaxPacketId(0); |
| 471 SetKeyFrame(true); |
| 472 InsertPacket(); |
| 473 |
| 474 int frame_id; |
| 475 testing_clock_.Advance( |
| 476 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 477 SetKeyFrame(false); |
| 478 for (frame_id = 1; frame_id < 3; ++frame_id) { |
| 479 EXPECT_TRUE(feedback_.triggered()); |
| 480 EXPECT_EQ(frame_id - 1, feedback_.last_frame_acked()); |
| 481 SetFrameId(frame_id); |
| 482 InsertPacket(); |
| 483 testing_clock_.Advance( |
| 484 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 485 } |
| 486 // We should now have entered the slowdown ACK state. |
| 487 uint8_t expected_frame_id = 1; |
| 488 for (; frame_id < 10; ++frame_id) { |
| 489 if (frame_id % 2) ++expected_frame_id; |
| 490 EXPECT_TRUE(feedback_.triggered()); |
| 491 EXPECT_EQ(expected_frame_id, feedback_.last_frame_acked()); |
| 492 SetFrameId(frame_id); |
| 493 InsertPacket(); |
| 494 testing_clock_.Advance( |
| 495 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 496 } |
| 497 EXPECT_TRUE(feedback_.triggered()); |
| 498 EXPECT_EQ(expected_frame_id, feedback_.last_frame_acked()); |
| 499 |
| 500 // Simulate frame_id being pulled for rendering. |
| 501 frame_id_map_.RemoveOldFrames(frame_id); |
| 502 // We should now leave the slowdown ACK state. |
| 503 ++frame_id; |
| 504 SetFrameId(frame_id); |
| 505 InsertPacket(); |
| 506 testing_clock_.Advance( |
| 507 base::TimeDelta::FromMilliseconds(kShortTimeIncrementMs)); |
| 508 EXPECT_TRUE(feedback_.triggered()); |
| 509 EXPECT_EQ(frame_id, feedback_.last_frame_acked()); |
| 510 } |
| 511 |
| 512 } // namespace cast |
| 513 } // namespace media |
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Chromium Code Reviews
Issue 23467003:
Added framer to cast. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@rtcp