/* * libjingle * Copyright 2004 Google Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include "talk/media/base/filemediaengine.h" #include "talk/media/base/rtpdump.h" #include "talk/media/base/streamparams.h" #include "talk/media/base/testutils.h" #include "webrtc/base/buffer.h" #include "webrtc/base/gunit.h" #include "webrtc/base/helpers.h" #include "webrtc/base/pathutils.h" #include "webrtc/base/stream.h" namespace cricket { static const int kWaitTimeMs = 100; static const std::string kFakeFileName = "foobar"; ////////////////////////////////////////////////////////////////////////////// // Media channel sends RTP packets via NetworkInterface. Rather than sending // packets to the network, FileNetworkInterface writes packets to a stream and // feeds packets back to the channel via OnPacketReceived. ////////////////////////////////////////////////////////////////////////////// class FileNetworkInterface : public MediaChannel::NetworkInterface { public: FileNetworkInterface(rtc::StreamInterface* output, MediaChannel* ch) : media_channel_(ch), num_sent_packets_(0) { if (output) { dump_writer_.reset(new RtpDumpWriter(output)); } } // Implement pure virtual methods of NetworkInterface. virtual bool SendPacket(rtc::Buffer* packet, rtc::DiffServCodePoint dscp) { if (!packet) return false; if (media_channel_) { media_channel_->OnPacketReceived(packet, rtc::PacketTime()); } if (dump_writer_.get() && rtc::SR_SUCCESS != dump_writer_->WriteRtpPacket( packet->data(), packet->length())) { return false; } ++num_sent_packets_; return true; } virtual bool SendRtcp(rtc::Buffer* packet, rtc::DiffServCodePoint dscp) { return false; } virtual int SetOption(MediaChannel::NetworkInterface::SocketType type, rtc::Socket::Option opt, int option) { return 0; } virtual void SetDefaultDSCPCode(rtc::DiffServCodePoint dscp) {} size_t num_sent_packets() const { return num_sent_packets_; } private: MediaChannel* media_channel_; rtc::scoped_ptr dump_writer_; size_t num_sent_packets_; DISALLOW_COPY_AND_ASSIGN(FileNetworkInterface); }; class FileMediaEngineTest : public testing::Test { public: virtual void SetUp() { setup_ok_ = true; setup_ok_ &= GetTempFilename(&voice_input_filename_); setup_ok_ &= GetTempFilename(&voice_output_filename_); setup_ok_ &= GetTempFilename(&video_input_filename_); setup_ok_ &= GetTempFilename(&video_output_filename_); } virtual void TearDown() { // Force to close the dump files, if opened. voice_channel_.reset(); video_channel_.reset(); DeleteTempFile(voice_input_filename_); DeleteTempFile(voice_output_filename_); DeleteTempFile(video_input_filename_); DeleteTempFile(video_output_filename_); } protected: bool CreateEngineAndChannels(const std::string& voice_in, const std::string& voice_out, const std::string& video_in, const std::string& video_out, size_t ssrc_count) { // Force to close the dump files, if opened. voice_channel_.reset(); video_channel_.reset(); bool ret = setup_ok_; if (!voice_in.empty()) { ret &= WriteTestPacketsToFile(voice_in, ssrc_count); } if (!video_in.empty()) { ret &= WriteTestPacketsToFile(video_in, ssrc_count); } engine_.reset(new FileMediaEngine); engine_->set_voice_input_filename(voice_in); engine_->set_voice_output_filename(voice_out); engine_->set_video_input_filename(video_in); engine_->set_video_output_filename(video_out); engine_->set_rtp_sender_thread(rtc::Thread::Current()); voice_channel_.reset(engine_->CreateChannel()); video_channel_.reset(engine_->CreateVideoChannel(VideoOptions(), NULL)); return ret; } bool GetTempFilename(std::string* filename) { rtc::Pathname temp_path; if (!rtc::Filesystem::GetTemporaryFolder(temp_path, true, NULL)) { return false; } temp_path.SetPathname( rtc::Filesystem::TempFilename(temp_path, "fme-test-")); if (filename) { *filename = temp_path.pathname(); } return true; } bool WriteTestPacketsToFile(const std::string& filename, size_t ssrc_count) { rtc::scoped_ptr stream( rtc::Filesystem::OpenFile(rtc::Pathname(filename), "wb")); bool ret = (NULL != stream.get()); RtpDumpWriter writer(stream.get()); for (size_t i = 0; i < ssrc_count; ++i) { ret &= RtpTestUtility::WriteTestPackets( RtpTestUtility::GetTestPacketCount(), false, static_cast(RtpTestUtility::kDefaultSsrc + i), &writer); } return ret; } void DeleteTempFile(std::string filename) { rtc::Pathname pathname(filename); if (rtc::Filesystem::IsFile(rtc::Pathname(pathname))) { rtc::Filesystem::DeleteFile(pathname); } } bool GetSsrcAndPacketCounts(rtc::StreamInterface* stream, size_t* ssrc_count, size_t* packet_count) { rtc::scoped_ptr reader(new RtpDumpReader(stream)); size_t count = 0; RtpDumpPacket packet; std::set ssrcs; while (rtc::SR_SUCCESS == reader->ReadPacket(&packet)) { count++; uint32 ssrc; if (!packet.GetRtpSsrc(&ssrc)) { return false; } ssrcs.insert(ssrc); } if (ssrc_count) { *ssrc_count = ssrcs.size(); } if (packet_count) { *packet_count = count; } return true; } static const uint32 kWaitTimeout = 3000; bool setup_ok_; std::string voice_input_filename_; std::string voice_output_filename_; std::string video_input_filename_; std::string video_output_filename_; rtc::scoped_ptr engine_; rtc::scoped_ptr voice_channel_; rtc::scoped_ptr video_channel_; }; TEST_F(FileMediaEngineTest, TestDefaultImplementation) { EXPECT_TRUE(CreateEngineAndChannels("", "", "", "", 1)); EXPECT_TRUE(engine_->Init(rtc::Thread::Current())); EXPECT_EQ(0, engine_->GetCapabilities()); EXPECT_TRUE(NULL == voice_channel_.get()); EXPECT_TRUE(NULL == video_channel_.get()); EXPECT_TRUE(NULL == engine_->CreateSoundclip()); cricket::AudioOptions audio_options; EXPECT_TRUE(engine_->SetAudioOptions(audio_options)); VideoEncoderConfig video_encoder_config; EXPECT_TRUE(engine_->SetDefaultVideoEncoderConfig(video_encoder_config)); EXPECT_TRUE(engine_->SetSoundDevices(NULL, NULL)); EXPECT_TRUE(engine_->SetVideoCaptureDevice(NULL)); EXPECT_TRUE(engine_->SetOutputVolume(0)); EXPECT_EQ(0, engine_->GetInputLevel()); EXPECT_TRUE(engine_->SetLocalMonitor(true)); EXPECT_TRUE(engine_->SetVideoCapture(true)); EXPECT_EQ(0U, engine_->audio_codecs().size()); EXPECT_EQ(0U, engine_->video_codecs().size()); AudioCodec voice_codec; EXPECT_TRUE(engine_->FindAudioCodec(voice_codec)); VideoCodec video_codec; EXPECT_TRUE(engine_->FindVideoCodec(video_codec)); engine_->Terminate(); } // Test that when file path is not pointing to a valid stream file, the channel // creation function should fail and return NULL. TEST_F(FileMediaEngineTest, TestBadFilePath) { engine_.reset(new FileMediaEngine); engine_->set_voice_input_filename(kFakeFileName); engine_->set_video_input_filename(kFakeFileName); EXPECT_TRUE(engine_->CreateChannel() == NULL); EXPECT_TRUE(engine_->CreateVideoChannel(VideoOptions(), NULL) == NULL); } TEST_F(FileMediaEngineTest, TestCodecs) { EXPECT_TRUE(CreateEngineAndChannels("", "", "", "", 1)); std::vector voice_codecs = engine_->audio_codecs(); std::vector video_codecs = engine_->video_codecs(); EXPECT_EQ(0U, voice_codecs.size()); EXPECT_EQ(0U, video_codecs.size()); AudioCodec voice_codec(103, "ISAC", 16000, 0, 1, 0); voice_codecs.push_back(voice_codec); engine_->set_voice_codecs(voice_codecs); voice_codecs = engine_->audio_codecs(); ASSERT_EQ(1U, voice_codecs.size()); EXPECT_EQ(voice_codec, voice_codecs[0]); VideoCodec video_codec(96, "H264-SVC", 320, 240, 30, 0); video_codecs.push_back(video_codec); engine_->set_video_codecs(video_codecs); video_codecs = engine_->video_codecs(); ASSERT_EQ(1U, video_codecs.size()); EXPECT_EQ(video_codec, video_codecs[0]); } // Test that the capabilities and channel creation of the Filemedia engine // depend on the stream parameters passed to its constructor. TEST_F(FileMediaEngineTest, TestGetCapabilities) { EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, "", "", "", 1)); EXPECT_EQ(AUDIO_SEND, engine_->GetCapabilities()); EXPECT_TRUE(NULL != voice_channel_.get()); EXPECT_TRUE(NULL == video_channel_.get()); EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, voice_output_filename_, "", "", 1)); EXPECT_EQ(AUDIO_SEND | AUDIO_RECV, engine_->GetCapabilities()); EXPECT_TRUE(NULL != voice_channel_.get()); EXPECT_TRUE(NULL == video_channel_.get()); EXPECT_TRUE(CreateEngineAndChannels("", "", video_input_filename_, "", 1)); EXPECT_EQ(VIDEO_SEND, engine_->GetCapabilities()); EXPECT_TRUE(NULL == voice_channel_.get()); EXPECT_TRUE(NULL != video_channel_.get()); EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, voice_output_filename_, video_input_filename_, video_output_filename_, 1)); EXPECT_EQ(AUDIO_SEND | AUDIO_RECV | VIDEO_SEND | VIDEO_RECV, engine_->GetCapabilities()); EXPECT_TRUE(NULL != voice_channel_.get()); EXPECT_TRUE(NULL != video_channel_.get()); } // FileVideoChannel is the same as FileVoiceChannel in terms of receiving and // sending the RTP packets. We therefore test only FileVoiceChannel. // Test that SetSend() controls whether a voice channel sends RTP packets. TEST_F(FileMediaEngineTest, TestVoiceChannelSetSend) { EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, voice_output_filename_, "", "", 1)); EXPECT_TRUE(NULL != voice_channel_.get()); rtc::MemoryStream net_dump; FileNetworkInterface net_interface(&net_dump, voice_channel_.get()); voice_channel_->SetInterface(&net_interface); // The channel is not sending yet. rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); EXPECT_EQ(0U, net_interface.num_sent_packets()); // The channel starts sending. voice_channel_->SetSend(SEND_MICROPHONE); EXPECT_TRUE_WAIT(net_interface.num_sent_packets() >= 1U, kWaitTimeout); // The channel stops sending. voice_channel_->SetSend(SEND_NOTHING); // Wait until packets are all delivered. rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); size_t old_number = net_interface.num_sent_packets(); rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); EXPECT_EQ(old_number, net_interface.num_sent_packets()); // The channel starts sending again. voice_channel_->SetSend(SEND_MICROPHONE); EXPECT_TRUE_WAIT(net_interface.num_sent_packets() > old_number, kWaitTimeout); // When the function exits, the net_interface object is released. The sender // thread may call net_interface to send packets, which results in a segment // fault. We hence stop sending and wait until all packets are delivered // before we exit this function. voice_channel_->SetSend(SEND_NOTHING); rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); } // Test the sender thread of the channel. The sender sends RTP packets // continuously with proper sequence number, timestamp, and payload. TEST_F(FileMediaEngineTest, TestVoiceChannelSenderThread) { EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, voice_output_filename_, "", "", 1)); EXPECT_TRUE(NULL != voice_channel_.get()); rtc::MemoryStream net_dump; FileNetworkInterface net_interface(&net_dump, voice_channel_.get()); voice_channel_->SetInterface(&net_interface); voice_channel_->SetSend(SEND_MICROPHONE); // Wait until the number of sent packets is no less than 2 * kPacketNumber. EXPECT_TRUE_WAIT( net_interface.num_sent_packets() >= 2 * RtpTestUtility::GetTestPacketCount(), kWaitTimeout); voice_channel_->SetSend(SEND_NOTHING); // Wait until packets are all delivered. rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); EXPECT_TRUE(RtpTestUtility::VerifyTestPacketsFromStream( 2 * RtpTestUtility::GetTestPacketCount(), &net_dump, RtpTestUtility::kDefaultSsrc)); // Each sent packet is dumped to net_dump and is also feed to the channel // via OnPacketReceived, which in turn writes the packets into voice_output_. // We next verify the packets in voice_output_. voice_channel_.reset(); // Force to close the files. rtc::scoped_ptr voice_output_; voice_output_.reset(rtc::Filesystem::OpenFile( rtc::Pathname(voice_output_filename_), "rb")); EXPECT_TRUE(voice_output_.get() != NULL); EXPECT_TRUE(RtpTestUtility::VerifyTestPacketsFromStream( 2 * RtpTestUtility::GetTestPacketCount(), voice_output_.get(), RtpTestUtility::kDefaultSsrc)); } // Test that we can specify the ssrc for outgoing RTP packets. TEST_F(FileMediaEngineTest, TestVoiceChannelSendSsrc) { EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, voice_output_filename_, "", "", 1)); EXPECT_TRUE(NULL != voice_channel_.get()); const uint32 send_ssrc = RtpTestUtility::kDefaultSsrc + 1; voice_channel_->AddSendStream(StreamParams::CreateLegacy(send_ssrc)); rtc::MemoryStream net_dump; FileNetworkInterface net_interface(&net_dump, voice_channel_.get()); voice_channel_->SetInterface(&net_interface); voice_channel_->SetSend(SEND_MICROPHONE); // Wait until the number of sent packets is no less than 2 * kPacketNumber. EXPECT_TRUE_WAIT( net_interface.num_sent_packets() >= 2 * RtpTestUtility::GetTestPacketCount(), kWaitTimeout); voice_channel_->SetSend(SEND_NOTHING); // Wait until packets are all delivered. rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); EXPECT_TRUE(RtpTestUtility::VerifyTestPacketsFromStream( 2 * RtpTestUtility::GetTestPacketCount(), &net_dump, send_ssrc)); // Each sent packet is dumped to net_dump and is also feed to the channel // via OnPacketReceived, which in turn writes the packets into voice_output_. // We next verify the packets in voice_output_. voice_channel_.reset(); // Force to close the files. rtc::scoped_ptr voice_output_; voice_output_.reset(rtc::Filesystem::OpenFile( rtc::Pathname(voice_output_filename_), "rb")); EXPECT_TRUE(voice_output_.get() != NULL); EXPECT_TRUE(RtpTestUtility::VerifyTestPacketsFromStream( 2 * RtpTestUtility::GetTestPacketCount(), voice_output_.get(), send_ssrc)); } // Test the sender thread of the channel, where the input rtpdump has two SSRCs. TEST_F(FileMediaEngineTest, TestVoiceChannelSenderThreadTwoSsrcs) { EXPECT_TRUE(CreateEngineAndChannels(voice_input_filename_, voice_output_filename_, "", "", 2)); // Verify that voice_input_filename_ contains 2 * // RtpTestUtility::GetTestPacketCount() packets // with different SSRCs. rtc::scoped_ptr input_stream( rtc::Filesystem::OpenFile( rtc::Pathname(voice_input_filename_), "rb")); ASSERT_TRUE(NULL != input_stream.get()); size_t ssrc_count; size_t packet_count; EXPECT_TRUE(GetSsrcAndPacketCounts(input_stream.get(), &ssrc_count, &packet_count)); EXPECT_EQ(2U, ssrc_count); EXPECT_EQ(2 * RtpTestUtility::GetTestPacketCount(), packet_count); input_stream.reset(); // Send 2 * RtpTestUtility::GetTestPacketCount() packets and verify that all // these packets have the same SSRCs (that is, the packets with different // SSRCs are skipped by the filemediaengine). EXPECT_TRUE(NULL != voice_channel_.get()); rtc::MemoryStream net_dump; FileNetworkInterface net_interface(&net_dump, voice_channel_.get()); voice_channel_->SetInterface(&net_interface); voice_channel_->SetSend(SEND_MICROPHONE); EXPECT_TRUE_WAIT( net_interface.num_sent_packets() >= 2 * RtpTestUtility::GetTestPacketCount(), kWaitTimeout); voice_channel_->SetSend(SEND_NOTHING); // Wait until packets are all delivered. rtc::Thread::Current()->ProcessMessages(kWaitTimeMs); net_dump.Rewind(); EXPECT_TRUE(GetSsrcAndPacketCounts(&net_dump, &ssrc_count, &packet_count)); EXPECT_EQ(1U, ssrc_count); EXPECT_GE(packet_count, 2 * RtpTestUtility::GetTestPacketCount()); } // Test SendIntraFrame() and RequestIntraFrame() of video channel. TEST_F(FileMediaEngineTest, TestVideoChannelIntraFrame) { EXPECT_TRUE(CreateEngineAndChannels("", "", video_input_filename_, video_output_filename_, 1)); EXPECT_TRUE(NULL != video_channel_.get()); EXPECT_FALSE(video_channel_->SendIntraFrame()); EXPECT_FALSE(video_channel_->RequestIntraFrame()); } } // namespace cricket