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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/memory/scoped_ptr.h"
#include "base/test/simple_test_tick_clock.h"
#include "media/base/media.h"
#include "media/cast/audio_sender/audio_sender.h"
#include "media/cast/cast_config.h"
#include "media/cast/cast_environment.h"
#include "media/cast/rtcp/rtcp.h"
#include "media/cast/test/audio_utility.h"
#include "media/cast/test/fake_task_runner.h"
#include "media/cast/transport/cast_transport_config.h"
#include "media/cast/transport/cast_transport_sender_impl.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
namespace cast {
static const int64 kStartMillisecond = GG_INT64_C(12345678900000);
using testing::_;
using testing::Exactly;
class TestPacketSender : public transport::PacketSender {
public:
TestPacketSender()
: number_of_rtp_packets_(0),
number_of_rtcp_packets_(0) {}
virtual bool SendPacket(const Packet& packet) OVERRIDE {
if (Rtcp::IsRtcpPacket(&packet[0], packet.size())) {
++number_of_rtcp_packets_;
} else {
++number_of_rtp_packets_;
}
return true;
}
int number_of_rtp_packets() const {
return number_of_rtp_packets_;
}
int number_of_rtcp_packets() const {
return number_of_rtcp_packets_;
}
private:
int number_of_rtp_packets_;
int number_of_rtcp_packets_;
DISALLOW_COPY_AND_ASSIGN(TestPacketSender);
};
class AudioSenderTest : public ::testing::Test {
public:
MOCK_METHOD0(InsertAudioCallback, void());
protected:
AudioSenderTest() {
InitializeMediaLibraryForTesting();
testing_clock_ = new base::SimpleTestTickClock();
testing_clock_->Advance(
base::TimeDelta::FromMilliseconds(kStartMillisecond));
task_runner_ = new test::FakeTaskRunner(testing_clock_);
cast_environment_ = new CastEnvironment(
scoped_ptr<base::TickClock>(testing_clock_).Pass(),
task_runner_, task_runner_, task_runner_, task_runner_,
task_runner_, task_runner_, GetDefaultCastSenderLoggingConfig());
audio_config_.codec = transport::kOpus;
audio_config_.use_external_encoder = false;
audio_config_.frequency = kDefaultAudioSamplingRate;
audio_config_.channels = 2;
audio_config_.bitrate = kDefaultAudioEncoderBitrate;
audio_config_.rtp_payload_type = 127;
transport::CastTransportConfig transport_config;
transport_config.audio_rtp_payload_type = 127;
transport_config.audio_channels = 2;
transport_sender_.reset(new transport::CastTransportSenderImpl(
testing_clock_,
transport_config,
base::Bind(&UpdateCastTransportStatus), task_runner_));
transport_sender_->InsertFakeTransportForTesting(&transport_);
audio_sender_.reset(new AudioSender(
cast_environment_, audio_config_, transport_sender_.get()));
task_runner_->RunTasks();
}
virtual ~AudioSenderTest() {}
static void UpdateCastTransportStatus(transport::CastTransportStatus status) {
EXPECT_EQ(status, transport::TRANSPORT_INITIALIZED);
}
base::SimpleTestTickClock* testing_clock_; // Owned by CastEnvironment.
TestPacketSender transport_;
scoped_ptr<transport::CastTransportSenderImpl> transport_sender_;
scoped_refptr<test::FakeTaskRunner> task_runner_;
scoped_ptr<AudioSender> audio_sender_;
scoped_refptr<CastEnvironment> cast_environment_;
AudioSenderConfig audio_config_;
};
TEST_F(AudioSenderTest, Encode20ms) {
EXPECT_CALL(*this, InsertAudioCallback()).Times(Exactly(1));
const base::TimeDelta kDuration = base::TimeDelta::FromMilliseconds(20);
scoped_ptr<AudioBus> bus(TestAudioBusFactory(
audio_config_.channels, audio_config_.frequency,
TestAudioBusFactory::kMiddleANoteFreq, 0.5f).NextAudioBus(kDuration));
base::TimeTicks recorded_time = base::TimeTicks::Now();
audio_sender_->InsertAudio(
bus.get(),
recorded_time,
base::Bind(
&AudioSenderTest::InsertAudioCallback,
base::Unretained(this)));
task_runner_->RunTasks();
EXPECT_GE(transport_.number_of_rtp_packets() +
transport_.number_of_rtcp_packets(), 1);
}
TEST_F(AudioSenderTest, RtcpTimer) {
EXPECT_CALL(*this, InsertAudioCallback()).Times(Exactly(1));
const base::TimeDelta kDuration = base::TimeDelta::FromMilliseconds(20);
scoped_ptr<AudioBus> bus(TestAudioBusFactory(
audio_config_.channels, audio_config_.frequency,
TestAudioBusFactory::kMiddleANoteFreq, 0.5f).NextAudioBus(kDuration));
base::TimeTicks recorded_time = base::TimeTicks::Now();
audio_sender_->InsertAudio(
bus.get(), recorded_time,
base::Bind(
&AudioSenderTest::InsertAudioCallback,
base::Unretained(this)));
task_runner_->RunTasks();
// Make sure that we send at least one RTCP packet.
base::TimeDelta max_rtcp_timeout =
base::TimeDelta::FromMilliseconds(1 + kDefaultRtcpIntervalMs * 3 / 2);
testing_clock_->Advance(max_rtcp_timeout);
task_runner_->RunTasks();
EXPECT_GE(transport_.number_of_rtp_packets(), 1);
EXPECT_EQ(transport_.number_of_rtcp_packets(), 1);
}
} // namespace cast
} // namespace media
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