| /* |
| * Copyright (c) 2016 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 "webrtc/modules/rtp_rtcp/source/playout_delay_oracle.h" |
| |
| #include "webrtc/rtc_base/logging.h" |
| #include "webrtc/test/gtest.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| constexpr int kSsrc = 100; |
| constexpr int kSequenceNumber = 100; |
| constexpr int kMinPlayoutDelay = 0; |
| constexpr int kMaxPlayoutDelay = 150; |
| } // namespace |
| |
| class PlayoutDelayOracleTest : public ::testing::Test { |
| protected: |
| void ReportRTCPFeedback(int ssrc, int seq_num) { |
| RTCPReportBlock report_block; |
| report_block.source_ssrc = ssrc; |
| report_block.extended_highest_sequence_number = seq_num; |
| report_blocks_.push_back(report_block); |
| playout_delay_oracle_.OnReceivedRtcpReportBlocks(report_blocks_); |
| } |
| |
| ReportBlockList report_blocks_; |
| PlayoutDelayOracle playout_delay_oracle_; |
| }; |
| |
| TEST_F(PlayoutDelayOracleTest, DisabledByDefault) { |
| EXPECT_FALSE(playout_delay_oracle_.send_playout_delay()); |
| EXPECT_EQ(-1, playout_delay_oracle_.playout_delay().min_ms); |
| EXPECT_EQ(-1, playout_delay_oracle_.playout_delay().max_ms); |
| } |
| |
| TEST_F(PlayoutDelayOracleTest, SendPlayoutDelayUntilSeqNumberExceeds) { |
| PlayoutDelay playout_delay = {kMinPlayoutDelay, kMaxPlayoutDelay}; |
| playout_delay_oracle_.UpdateRequest(kSsrc, playout_delay, kSequenceNumber); |
| EXPECT_TRUE(playout_delay_oracle_.send_playout_delay()); |
| EXPECT_EQ(kMinPlayoutDelay, playout_delay_oracle_.playout_delay().min_ms); |
| EXPECT_EQ(kMaxPlayoutDelay, playout_delay_oracle_.playout_delay().max_ms); |
| |
| // Oracle indicates playout delay should be sent if highest sequence number |
| // acked is lower than the sequence number of the first packet containing |
| // playout delay. |
| ReportRTCPFeedback(kSsrc, kSequenceNumber - 1); |
| EXPECT_TRUE(playout_delay_oracle_.send_playout_delay()); |
| |
| // An invalid ssrc feedback report is dropped by the oracle. |
| ReportRTCPFeedback(kSsrc + 1, kSequenceNumber + 1); |
| EXPECT_TRUE(playout_delay_oracle_.send_playout_delay()); |
| |
| // Oracle indicates playout delay should not be sent if sequence number |
| // acked on a matching ssrc indicates the receiver has received the playout |
| // delay values. |
| ReportRTCPFeedback(kSsrc, kSequenceNumber + 1); |
| EXPECT_FALSE(playout_delay_oracle_.send_playout_delay()); |
| } |
| |
| } // namespace webrtc |