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webrtc/talk/media/base/filemediaengine_unittest.cc
buildbot@webrtc.org 1ecbe45c7e (Auto)update libjingle 77689511-> 77696841 
git-svn-id: http://webrtc.googlecode.com/svn/trunk@7449 4adac7df-926f-26a2-2b94-8c16560cd09d
2014-10-14 20:29:28 +00:00

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/*
* 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 <set>
#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<RtpDumpWriter> 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<rtc::StreamInterface> 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<uint32>(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<RtpDumpReader> reader(new RtpDumpReader(stream));
size_t count = 0;
RtpDumpPacket packet;
std::set<uint32> 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<FileMediaEngine> engine_;
rtc::scoped_ptr<VoiceMediaChannel> voice_channel_;
rtc::scoped_ptr<VideoMediaChannel> 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<AudioCodec> voice_codecs = engine_->audio_codecs();
std::vector<VideoCodec> 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<rtc::StreamInterface> 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<rtc::StreamInterface> 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<rtc::StreamInterface> 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
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