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/bind.h"
6 #include "base/bind_helpers.h"
7 #include "base/memory/scoped_ptr.h"
8 #include "base/test/simple_test_tick_clock.h"
9 #include "media/base/media.h"
10 #include "media/cast/audio_sender/audio_sender.h"
11 #include "media/cast/cast_config.h"
12 #include "media/cast/cast_environment.h"
13 #include "media/cast/net/pacing/mock_paced_packet_sender.h"
14 #include "media/cast/test/audio_utility.h"
15 #include "media/cast/test/fake_task_runner.h"
16 #include "testing/gtest/include/gtest/gtest.h"
17
18 namespace media {
19 namespace cast {
20
21 static const int64 kStartMillisecond = GG_INT64_C(12345678900000);
22
23 using testing::_;
24 using testing::AtLeast;
25
26 class AudioSenderTest : public ::testing::Test {
27 protected:
AudioSenderTest()28 AudioSenderTest() {
29 InitializeMediaLibraryForTesting();
30 testing_clock_.Advance(
31 base::TimeDelta::FromMilliseconds(kStartMillisecond));
32 }
33
SetUp()34 virtual void SetUp() {
35 task_runner_ = new test::FakeTaskRunner(&testing_clock_);
36 cast_environment_ = new CastEnvironment(&testing_clock_, task_runner_,
37 task_runner_, task_runner_, task_runner_, task_runner_,
38 GetDefaultCastLoggingConfig());
39 audio_config_.codec = kOpus;
40 audio_config_.use_external_encoder = false;
41 audio_config_.frequency = kDefaultAudioSamplingRate;
42 audio_config_.channels = 2;
43 audio_config_.bitrate = kDefaultAudioEncoderBitrate;
44 audio_config_.rtp_payload_type = 127;
45
46 audio_sender_.reset(
47 new AudioSender(cast_environment_, audio_config_, &mock_transport_));
48 }
49
~AudioSenderTest()50 virtual ~AudioSenderTest() {}
51
52 base::SimpleTestTickClock testing_clock_;
53 MockPacedPacketSender mock_transport_;
54 scoped_refptr<test::FakeTaskRunner> task_runner_;
55 scoped_ptr<AudioSender> audio_sender_;
56 scoped_refptr<CastEnvironment> cast_environment_;
57 AudioSenderConfig audio_config_;
58 };
59
TEST_F(AudioSenderTest,Encode20ms)60 TEST_F(AudioSenderTest, Encode20ms) {
61 EXPECT_CALL(mock_transport_, SendPackets(_)).Times(AtLeast(1));
62
63 const base::TimeDelta kDuration = base::TimeDelta::FromMilliseconds(20);
64 scoped_ptr<AudioBus> bus(TestAudioBusFactory(
65 audio_config_.channels, audio_config_.frequency,
66 TestAudioBusFactory::kMiddleANoteFreq, 0.5f).NextAudioBus(kDuration));
67
68 base::TimeTicks recorded_time = base::TimeTicks::Now();
69 audio_sender_->InsertAudio(
70 bus.get(), recorded_time,
71 base::Bind(base::IgnoreResult(&scoped_ptr<AudioBus>::release),
72 base::Unretained(&bus)));
73 task_runner_->RunTasks();
74
75 EXPECT_TRUE(!bus) << "AudioBus wasn't released after use.";
76 }
77
TEST_F(AudioSenderTest,RtcpTimer)78 TEST_F(AudioSenderTest, RtcpTimer) {
79 EXPECT_CALL(mock_transport_, SendPackets(_)).Times(AtLeast(1));
80 EXPECT_CALL(mock_transport_, SendRtcpPacket(_)).Times(1);
81
82 const base::TimeDelta kDuration = base::TimeDelta::FromMilliseconds(20);
83 scoped_ptr<AudioBus> bus(TestAudioBusFactory(
84 audio_config_.channels, audio_config_.frequency,
85 TestAudioBusFactory::kMiddleANoteFreq, 0.5f).NextAudioBus(kDuration));
86
87 base::TimeTicks recorded_time = base::TimeTicks::Now();
88 audio_sender_->InsertAudio(
89 bus.get(), recorded_time,
90 base::Bind(base::IgnoreResult(&scoped_ptr<AudioBus>::release),
91 base::Unretained(&bus)));
92 task_runner_->RunTasks();
93
94 // Make sure that we send at least one RTCP packet.
95 base::TimeDelta max_rtcp_timeout =
96 base::TimeDelta::FromMilliseconds(1 + kDefaultRtcpIntervalMs * 3 / 2);
97 testing_clock_.Advance(max_rtcp_timeout);
98 task_runner_->RunTasks();
99 }
100
101 } // namespace cast
102 } // namespace media
103