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/*
* Copyright 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 "pc/track_media_info_map.h"
#include <stddef.h>
#include <cstdint>
#include <initializer_list>
#include <string>
#include <type_traits>
#include <utility>
#include <vector>
#include "api/media_types.h"
#include "api/rtp_parameters.h"
#include "api/test/mock_video_track.h"
#include "media/base/media_channel.h"
#include "pc/audio_track.h"
#include "pc/test/fake_video_track_source.h"
#include "pc/test/mock_rtp_receiver_internal.h"
#include "pc/test/mock_rtp_sender_internal.h"
#include "pc/video_track.h"
#include "rtc_base/checks.h"
#include "rtc_base/thread.h"
#include "test/gmock.h"
#include "test/gtest.h"
using ::testing::ElementsAre;
namespace webrtc {
namespace {
RtpParameters CreateRtpParametersWithSsrcs(
std::initializer_list<uint32_t> ssrcs) {
RtpParameters params;
for (uint32_t ssrc : ssrcs) {
RtpEncodingParameters encoding_params;
encoding_params.ssrc = ssrc;
params.encodings.push_back(encoding_params);
}
return params;
}
rtc::scoped_refptr<MockRtpSenderInternal> CreateMockRtpSender(
cricket::MediaType media_type,
std::initializer_list<uint32_t> ssrcs,
rtc::scoped_refptr<MediaStreamTrackInterface> track) {
uint32_t first_ssrc;
if (ssrcs.size()) {
first_ssrc = *ssrcs.begin();
} else {
first_ssrc = 0;
}
auto sender = rtc::make_ref_counted<MockRtpSenderInternal>();
EXPECT_CALL(*sender, track())
.WillRepeatedly(::testing::Return(std::move(track)));
EXPECT_CALL(*sender, ssrc()).WillRepeatedly(::testing::Return(first_ssrc));
EXPECT_CALL(*sender, media_type())
.WillRepeatedly(::testing::Return(media_type));
EXPECT_CALL(*sender, GetParameters())
.WillRepeatedly(::testing::Return(CreateRtpParametersWithSsrcs(ssrcs)));
EXPECT_CALL(*sender, AttachmentId()).WillRepeatedly(::testing::Return(1));
return sender;
}
rtc::scoped_refptr<MockRtpReceiverInternal> CreateMockRtpReceiver(
cricket::MediaType media_type,
std::initializer_list<uint32_t> ssrcs,
rtc::scoped_refptr<MediaStreamTrackInterface> track) {
auto receiver = rtc::make_ref_counted<MockRtpReceiverInternal>();
EXPECT_CALL(*receiver, track())
.WillRepeatedly(::testing::Return(std::move(track)));
EXPECT_CALL(*receiver, media_type())
.WillRepeatedly(::testing::Return(media_type));
EXPECT_CALL(*receiver, GetParameters())
.WillRepeatedly(::testing::Return(CreateRtpParametersWithSsrcs(ssrcs)));
EXPECT_CALL(*receiver, AttachmentId()).WillRepeatedly(::testing::Return(1));
return receiver;
}
rtc::scoped_refptr<VideoTrackInterface> CreateVideoTrack(
const std::string& id) {
return VideoTrack::Create(id, FakeVideoTrackSource::Create(false),
rtc::Thread::Current());
}
rtc::scoped_refptr<VideoTrackInterface> CreateMockVideoTrack(
const std::string& id) {
auto track = MockVideoTrack::Create();
EXPECT_CALL(*track, kind())
.WillRepeatedly(::testing::Return(VideoTrack::kVideoKind));
return track;
}
class TrackMediaInfoMapTest : public ::testing::Test {
public:
TrackMediaInfoMapTest() : TrackMediaInfoMapTest(true) {}
explicit TrackMediaInfoMapTest(bool use_real_video_track)
: local_audio_track_(AudioTrack::Create("LocalAudioTrack", nullptr)),
remote_audio_track_(AudioTrack::Create("RemoteAudioTrack", nullptr)),
local_video_track_(use_real_video_track
? CreateVideoTrack("LocalVideoTrack")
: CreateMockVideoTrack("LocalVideoTrack")),
remote_video_track_(use_real_video_track
? CreateVideoTrack("RemoteVideoTrack")
: CreateMockVideoTrack("LocalVideoTrack")) {}
void AddRtpSenderWithSsrcs(std::initializer_list<uint32_t> ssrcs,
MediaStreamTrackInterface* local_track) {
rtc::scoped_refptr<MockRtpSenderInternal> rtp_sender = CreateMockRtpSender(
local_track->kind() == MediaStreamTrackInterface::kAudioKind
? cricket::MEDIA_TYPE_AUDIO
: cricket::MEDIA_TYPE_VIDEO,
ssrcs, rtc::scoped_refptr<MediaStreamTrackInterface>(local_track));
rtp_senders_.push_back(rtp_sender);
if (local_track->kind() == MediaStreamTrackInterface::kAudioKind) {
cricket::VoiceSenderInfo voice_sender_info;
size_t i = 0;
for (uint32_t ssrc : ssrcs) {
voice_sender_info.local_stats.push_back(cricket::SsrcSenderInfo());
voice_sender_info.local_stats[i++].ssrc = ssrc;
}
voice_media_info_.senders.push_back(voice_sender_info);
} else {
cricket::VideoSenderInfo video_sender_info;
size_t i = 0;
for (uint32_t ssrc : ssrcs) {
video_sender_info.local_stats.push_back(cricket::SsrcSenderInfo());
video_sender_info.local_stats[i++].ssrc = ssrc;
}
video_media_info_.senders.push_back(video_sender_info);
video_media_info_.aggregated_senders.push_back(video_sender_info);
}
}
void AddRtpReceiverWithSsrcs(std::initializer_list<uint32_t> ssrcs,
MediaStreamTrackInterface* remote_track) {
auto rtp_receiver = CreateMockRtpReceiver(
remote_track->kind() == MediaStreamTrackInterface::kAudioKind
? cricket::MEDIA_TYPE_AUDIO
: cricket::MEDIA_TYPE_VIDEO,
ssrcs, rtc::scoped_refptr<MediaStreamTrackInterface>(remote_track));
rtp_receivers_.push_back(rtp_receiver);
if (remote_track->kind() == MediaStreamTrackInterface::kAudioKind) {
cricket::VoiceReceiverInfo voice_receiver_info;
size_t i = 0;
for (uint32_t ssrc : ssrcs) {
voice_receiver_info.local_stats.push_back(cricket::SsrcReceiverInfo());
voice_receiver_info.local_stats[i++].ssrc = ssrc;
}
voice_media_info_.receivers.push_back(voice_receiver_info);
} else {
cricket::VideoReceiverInfo video_receiver_info;
size_t i = 0;
for (uint32_t ssrc : ssrcs) {
video_receiver_info.local_stats.push_back(cricket::SsrcReceiverInfo());
video_receiver_info.local_stats[i++].ssrc = ssrc;
}
video_media_info_.receivers.push_back(video_receiver_info);
}
}
// Copies the current state of `voice_media_info_` and `video_media_info_`
// into the map.
void InitializeMap() {
map_.Initialize(voice_media_info_, video_media_info_, rtp_senders_,
rtp_receivers_);
}
private:
rtc::AutoThread main_thread_;
cricket::VoiceMediaInfo voice_media_info_;
cricket::VideoMediaInfo video_media_info_;
protected:
std::vector<rtc::scoped_refptr<RtpSenderInternal>> rtp_senders_;
std::vector<rtc::scoped_refptr<RtpReceiverInternal>> rtp_receivers_;
TrackMediaInfoMap map_;
rtc::scoped_refptr<AudioTrack> local_audio_track_;
rtc::scoped_refptr<AudioTrack> remote_audio_track_;
rtc::scoped_refptr<VideoTrackInterface> local_video_track_;
rtc::scoped_refptr<VideoTrackInterface> remote_video_track_;
};
} // namespace
TEST_F(TrackMediaInfoMapTest, SingleSenderReceiverPerTrackWithOneSsrc) {
AddRtpSenderWithSsrcs({1}, local_audio_track_.get());
AddRtpReceiverWithSsrcs({2}, remote_audio_track_.get());
AddRtpSenderWithSsrcs({3}, local_video_track_.get());
AddRtpReceiverWithSsrcs({4}, remote_video_track_.get());
InitializeMap();
// RTP audio sender -> local audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[0]),
local_audio_track_.get());
// RTP audio receiver -> remote audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->receivers[0]),
remote_audio_track_.get());
// RTP video sender -> local video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[0]),
local_video_track_.get());
// RTP video receiver -> remote video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->receivers[0]),
remote_video_track_.get());
}
TEST_F(TrackMediaInfoMapTest,
SingleSenderReceiverPerTrackWithAudioAndVideoUseSameSsrc) {
AddRtpSenderWithSsrcs({1}, local_audio_track_.get());
AddRtpReceiverWithSsrcs({2}, remote_audio_track_.get());
AddRtpSenderWithSsrcs({1}, local_video_track_.get());
AddRtpReceiverWithSsrcs({2}, remote_video_track_.get());
InitializeMap();
// RTP audio sender -> local audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[0]),
local_audio_track_.get());
// RTP audio receiver -> remote audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->receivers[0]),
remote_audio_track_.get());
// RTP video sender -> local video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[0]),
local_video_track_.get());
// RTP video receiver -> remote video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->receivers[0]),
remote_video_track_.get());
}
TEST_F(TrackMediaInfoMapTest, SingleMultiSsrcSenderPerTrack) {
AddRtpSenderWithSsrcs({1, 2}, local_audio_track_.get());
AddRtpSenderWithSsrcs({3, 4}, local_video_track_.get());
InitializeMap();
// RTP audio senders -> local audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[0]),
local_audio_track_.get());
// RTP video senders -> local video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[0]),
local_video_track_.get());
}
TEST_F(TrackMediaInfoMapTest, MultipleOneSsrcSendersPerTrack) {
AddRtpSenderWithSsrcs({1}, local_audio_track_.get());
AddRtpSenderWithSsrcs({2}, local_audio_track_.get());
AddRtpSenderWithSsrcs({3}, local_video_track_.get());
AddRtpSenderWithSsrcs({4}, local_video_track_.get());
InitializeMap();
// RTP audio senders -> local audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[0]),
local_audio_track_.get());
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[1]),
local_audio_track_.get());
// RTP video senders -> local video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[0]),
local_video_track_.get());
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[1]),
local_video_track_.get());
}
TEST_F(TrackMediaInfoMapTest, MultipleMultiSsrcSendersPerTrack) {
AddRtpSenderWithSsrcs({1, 2}, local_audio_track_.get());
AddRtpSenderWithSsrcs({3, 4}, local_audio_track_.get());
AddRtpSenderWithSsrcs({5, 6}, local_video_track_.get());
AddRtpSenderWithSsrcs({7, 8}, local_video_track_.get());
InitializeMap();
// RTP audio senders -> local audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[0]),
local_audio_track_.get());
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[1]),
local_audio_track_.get());
// RTP video senders -> local video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[0]),
local_video_track_.get());
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[1]),
local_video_track_.get());
}
// SSRCs can be reused for send and receive in loopback.
TEST_F(TrackMediaInfoMapTest, SingleSenderReceiverPerTrackWithSsrcNotUnique) {
AddRtpSenderWithSsrcs({1}, local_audio_track_.get());
AddRtpReceiverWithSsrcs({1}, remote_audio_track_.get());
AddRtpSenderWithSsrcs({2}, local_video_track_.get());
AddRtpReceiverWithSsrcs({2}, remote_video_track_.get());
InitializeMap();
// RTP audio senders -> local audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->senders[0]),
local_audio_track_.get());
// RTP audio receiver -> remote audio track
EXPECT_EQ(map_.GetAudioTrack(map_.voice_media_info()->receivers[0]),
remote_audio_track_.get());
// RTP video senders -> local video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->senders[0]),
local_video_track_.get());
// RTP video receiver -> remote video track
EXPECT_EQ(map_.GetVideoTrack(map_.video_media_info()->receivers[0]),
remote_video_track_.get());
}
TEST_F(TrackMediaInfoMapTest, SsrcLookupFunction) {
AddRtpSenderWithSsrcs({1}, local_audio_track_.get());
AddRtpReceiverWithSsrcs({2}, remote_audio_track_.get());
AddRtpSenderWithSsrcs({3}, local_video_track_.get());
AddRtpReceiverWithSsrcs({4}, remote_video_track_.get());
InitializeMap();
EXPECT_TRUE(map_.GetVoiceSenderInfoBySsrc(1));
EXPECT_TRUE(map_.GetVoiceReceiverInfoBySsrc(2));
EXPECT_TRUE(map_.GetVideoSenderInfoBySsrc(3));
EXPECT_TRUE(map_.GetVideoReceiverInfoBySsrc(4));
EXPECT_FALSE(map_.GetVoiceSenderInfoBySsrc(2));
EXPECT_FALSE(map_.GetVoiceSenderInfoBySsrc(1024));
}
TEST_F(TrackMediaInfoMapTest, GetAttachmentIdByTrack) {
AddRtpSenderWithSsrcs({1}, local_audio_track_.get());
InitializeMap();
EXPECT_EQ(rtp_senders_[0]->AttachmentId(),
map_.GetAttachmentIdByTrack(local_audio_track_.get()));
EXPECT_EQ(absl::nullopt,
map_.GetAttachmentIdByTrack(local_video_track_.get()));
}
} // namespace webrtc