blob: f32e821ec23ca71731f26a2f73eabd9d79e4058f [file] [log] [blame]
* 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 {
void ReportRTCPFeedback(int ssrc, int seq_num) {
RTCPReportBlock report_block;
report_block.source_ssrc = ssrc;
report_block.extended_highest_sequence_number = seq_num;
ReportBlockList report_blocks_;
PlayoutDelayOracle playout_delay_oracle_;
TEST_F(PlayoutDelayOracleTest, DisabledByDefault) {
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_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);
// An invalid ssrc feedback report is dropped by the oracle.
ReportRTCPFeedback(kSsrc + 1, kSequenceNumber + 1);
// 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);
} // namespace webrtc