blob: 3857e9b211cd1e352374e4d57f4333db0b1d07f5 [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 "modules/rtp_rtcp/source/playout_delay_oracle.h"
#include "rtc_base/logging.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
constexpr int kSequenceNumber = 100;
constexpr int kMinPlayoutDelay = 0;
constexpr int kMaxPlayoutDelay = 150;
} // namespace
TEST(PlayoutDelayOracleTest, DisabledByDefault) {
PlayoutDelayOracle playout_delay_oracle;
EXPECT_FALSE(playout_delay_oracle.PlayoutDelayToSend({-1, -1}));
TEST(PlayoutDelayOracleTest, SendPlayoutDelayUntilSeqNumberExceeds) {
PlayoutDelayOracle playout_delay_oracle;
PlayoutDelay playout_delay = {kMinPlayoutDelay, kMaxPlayoutDelay};
playout_delay_oracle.OnSentPacket(kSequenceNumber, playout_delay);
absl::optional<PlayoutDelay> delay_to_send =
playout_delay_oracle.PlayoutDelayToSend({-1, -1});
EXPECT_EQ(kMinPlayoutDelay, delay_to_send->min_ms);
EXPECT_EQ(kMaxPlayoutDelay, delay_to_send->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.
playout_delay_oracle.OnReceivedAck(kSequenceNumber - 1);
EXPECT_TRUE(playout_delay_oracle.PlayoutDelayToSend({-1, -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.
playout_delay_oracle.OnReceivedAck(kSequenceNumber + 1);
EXPECT_FALSE(playout_delay_oracle.PlayoutDelayToSend({-1, -1}));
} // namespace webrtc