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/*
* Copyright 2021 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 "pc/audio_rtp_receiver.h"
#include <atomic>
#include <cstdint>
#include <string>
#include <vector>
#include "api/make_ref_counted.h"
#include "api/scoped_refptr.h"
#include "api/test/rtc_error_matchers.h"
#include "api/units/time_delta.h"
#include "pc/test/mock_voice_media_receive_channel_interface.h"
#include "rtc_base/thread.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/run_loop.h"
#include "test/wait_until.h"
using ::testing::_;
using ::testing::Eq;
using ::testing::InvokeWithoutArgs;
static const int kTimeOut = 100;
static const double kDefaultVolume = 1;
static const double kVolume = 3.7;
static const double kVolumeMuted = 0.0;
static const uint32_t kSsrc = 3;
namespace webrtc {
class AudioRtpReceiverTest : public ::testing::Test {
protected:
AudioRtpReceiverTest()
: worker_(Thread::Current()),
receiver_(make_ref_counted<AudioRtpReceiver>(worker_,
std::string(),
std::vector<std::string>(),
false)) {
EXPECT_CALL(receive_channel_, SetRawAudioSink(kSsrc, _));
EXPECT_CALL(receive_channel_, SetBaseMinimumPlayoutDelayMs(kSsrc, _));
}
~AudioRtpReceiverTest() override {
EXPECT_CALL(receive_channel_, SetOutputVolume(kSsrc, kVolumeMuted));
receiver_->SetMediaChannel(nullptr);
}
AutoThread main_thread_;
Thread* worker_;
scoped_refptr<AudioRtpReceiver> receiver_;
MockVoiceMediaReceiveChannelInterface receive_channel_;
};
TEST_F(AudioRtpReceiverTest, SetOutputVolumeIsCalled) {
std::atomic_int set_volume_calls(0);
EXPECT_CALL(receive_channel_, SetOutputVolume(kSsrc, kDefaultVolume))
.WillOnce(InvokeWithoutArgs([&] {
set_volume_calls++;
return true;
}));
receiver_->track();
receiver_->track()->set_enabled(true);
receiver_->SetMediaChannel(&receive_channel_);
EXPECT_CALL(receive_channel_, SetDefaultRawAudioSink(_)).Times(0);
receiver_->SetupMediaChannel(kSsrc);
EXPECT_CALL(receive_channel_, SetOutputVolume(kSsrc, kVolume))
.WillOnce(InvokeWithoutArgs([&] {
set_volume_calls++;
return true;
}));
receiver_->OnSetVolume(kVolume);
EXPECT_THAT(WaitUntil([&] { return set_volume_calls.load(); }, Eq(2),
{.timeout = TimeDelta::Millis(kTimeOut)}),
IsRtcOk());
}
TEST_F(AudioRtpReceiverTest, VolumesSetBeforeStartingAreRespected) {
// Set the volume before setting the media channel. It should still be used
// as the initial volume.
receiver_->OnSetVolume(kVolume);
receiver_->track()->set_enabled(true);
receiver_->SetMediaChannel(&receive_channel_);
// The previosly set initial volume should be propagated to the provided
// media_channel_ as soon as SetupMediaChannel is called.
EXPECT_CALL(receive_channel_, SetOutputVolume(kSsrc, kVolume));
receiver_->SetupMediaChannel(kSsrc);
}
// Tests that OnChanged notifications are processed correctly on the worker
// thread when a media channel pointer is passed to the receiver via the
// constructor.
TEST(AudioRtpReceiver, OnChangedNotificationsAfterConstruction) {
test::RunLoop loop;
auto* thread = Thread::Current(); // Points to loop's thread.
MockVoiceMediaReceiveChannelInterface receive_channel;
auto receiver = make_ref_counted<AudioRtpReceiver>(thread, std::string(),
std::vector<std::string>(),
true, &receive_channel);
EXPECT_CALL(receive_channel, SetDefaultRawAudioSink(_)).Times(1);
EXPECT_CALL(receive_channel, SetDefaultOutputVolume(kDefaultVolume)).Times(1);
receiver->SetupUnsignaledMediaChannel();
loop.Flush();
// Mark the track as disabled.
receiver->track()->set_enabled(false);
// When the track was marked as disabled, an async notification was queued
// for the worker thread. This notification should trigger the volume
// of the media channel to be set to kVolumeMuted.
// Flush the worker thread, but set the expectation first for the call.
EXPECT_CALL(receive_channel, SetDefaultOutputVolume(kVolumeMuted)).Times(1);
loop.Flush();
EXPECT_CALL(receive_channel, SetDefaultOutputVolume(kVolumeMuted)).Times(1);
receiver->SetMediaChannel(nullptr);
}
} // namespace webrtc
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