You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
363 lines
12 KiB
363 lines
12 KiB
/*
|
|
* Copyright (c) 2012 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 "media/base/rtp_data_engine.h"
|
|
|
|
#include <string.h>
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include "media/base/fake_network_interface.h"
|
|
#include "media/base/media_constants.h"
|
|
#include "media/base/rtp_utils.h"
|
|
#include "rtc_base/copy_on_write_buffer.h"
|
|
#include "rtc_base/fake_clock.h"
|
|
#include "rtc_base/third_party/sigslot/sigslot.h"
|
|
#include "rtc_base/time_utils.h"
|
|
#include "test/gtest.h"
|
|
|
|
class FakeDataReceiver : public sigslot::has_slots<> {
|
|
public:
|
|
FakeDataReceiver() : has_received_data_(false) {}
|
|
|
|
void OnDataReceived(const cricket::ReceiveDataParams& params,
|
|
const char* data,
|
|
size_t len) {
|
|
has_received_data_ = true;
|
|
last_received_data_ = std::string(data, len);
|
|
last_received_data_len_ = len;
|
|
last_received_data_params_ = params;
|
|
}
|
|
|
|
bool has_received_data() const { return has_received_data_; }
|
|
std::string last_received_data() const { return last_received_data_; }
|
|
size_t last_received_data_len() const { return last_received_data_len_; }
|
|
cricket::ReceiveDataParams last_received_data_params() const {
|
|
return last_received_data_params_;
|
|
}
|
|
|
|
private:
|
|
bool has_received_data_;
|
|
std::string last_received_data_;
|
|
size_t last_received_data_len_;
|
|
cricket::ReceiveDataParams last_received_data_params_;
|
|
};
|
|
|
|
class RtpDataMediaChannelTest : public ::testing::Test {
|
|
protected:
|
|
virtual void SetUp() {
|
|
// Seed needed for each test to satisfy expectations.
|
|
iface_.reset(new cricket::FakeNetworkInterface());
|
|
dme_.reset(CreateEngine());
|
|
receiver_.reset(new FakeDataReceiver());
|
|
}
|
|
|
|
void SetNow(double now) { clock_.SetTime(webrtc::Timestamp::Seconds(now)); }
|
|
|
|
cricket::RtpDataEngine* CreateEngine() {
|
|
cricket::RtpDataEngine* dme = new cricket::RtpDataEngine();
|
|
return dme;
|
|
}
|
|
|
|
cricket::RtpDataMediaChannel* CreateChannel() {
|
|
return CreateChannel(dme_.get());
|
|
}
|
|
|
|
cricket::RtpDataMediaChannel* CreateChannel(cricket::RtpDataEngine* dme) {
|
|
cricket::MediaConfig config;
|
|
cricket::RtpDataMediaChannel* channel =
|
|
static_cast<cricket::RtpDataMediaChannel*>(dme->CreateChannel(config));
|
|
channel->SetInterface(iface_.get());
|
|
channel->SignalDataReceived.connect(receiver_.get(),
|
|
&FakeDataReceiver::OnDataReceived);
|
|
return channel;
|
|
}
|
|
|
|
FakeDataReceiver* receiver() { return receiver_.get(); }
|
|
|
|
bool HasReceivedData() { return receiver_->has_received_data(); }
|
|
|
|
std::string GetReceivedData() { return receiver_->last_received_data(); }
|
|
|
|
size_t GetReceivedDataLen() { return receiver_->last_received_data_len(); }
|
|
|
|
cricket::ReceiveDataParams GetReceivedDataParams() {
|
|
return receiver_->last_received_data_params();
|
|
}
|
|
|
|
bool HasSentData(int count) { return (iface_->NumRtpPackets() > count); }
|
|
|
|
std::string GetSentData(int index) {
|
|
// Assume RTP header of length 12
|
|
std::unique_ptr<const rtc::CopyOnWriteBuffer> packet(
|
|
iface_->GetRtpPacket(index));
|
|
if (packet->size() > 12) {
|
|
return std::string(packet->data<char>() + 12, packet->size() - 12);
|
|
} else {
|
|
return "";
|
|
}
|
|
}
|
|
|
|
cricket::RtpHeader GetSentDataHeader(int index) {
|
|
std::unique_ptr<const rtc::CopyOnWriteBuffer> packet(
|
|
iface_->GetRtpPacket(index));
|
|
cricket::RtpHeader header;
|
|
GetRtpHeader(packet->data(), packet->size(), &header);
|
|
return header;
|
|
}
|
|
|
|
private:
|
|
std::unique_ptr<cricket::RtpDataEngine> dme_;
|
|
rtc::ScopedFakeClock clock_;
|
|
std::unique_ptr<cricket::FakeNetworkInterface> iface_;
|
|
std::unique_ptr<FakeDataReceiver> receiver_;
|
|
};
|
|
|
|
TEST_F(RtpDataMediaChannelTest, SetUnknownCodecs) {
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
cricket::DataCodec known_codec;
|
|
known_codec.id = 103;
|
|
known_codec.name = "google-data";
|
|
cricket::DataCodec unknown_codec;
|
|
unknown_codec.id = 104;
|
|
unknown_codec.name = "unknown-data";
|
|
|
|
cricket::DataSendParameters send_parameters_known;
|
|
send_parameters_known.codecs.push_back(known_codec);
|
|
cricket::DataRecvParameters recv_parameters_known;
|
|
recv_parameters_known.codecs.push_back(known_codec);
|
|
|
|
cricket::DataSendParameters send_parameters_unknown;
|
|
send_parameters_unknown.codecs.push_back(unknown_codec);
|
|
cricket::DataRecvParameters recv_parameters_unknown;
|
|
recv_parameters_unknown.codecs.push_back(unknown_codec);
|
|
|
|
cricket::DataSendParameters send_parameters_mixed;
|
|
send_parameters_mixed.codecs.push_back(known_codec);
|
|
send_parameters_mixed.codecs.push_back(unknown_codec);
|
|
cricket::DataRecvParameters recv_parameters_mixed;
|
|
recv_parameters_mixed.codecs.push_back(known_codec);
|
|
recv_parameters_mixed.codecs.push_back(unknown_codec);
|
|
|
|
EXPECT_TRUE(dmc->SetSendParameters(send_parameters_known));
|
|
EXPECT_FALSE(dmc->SetSendParameters(send_parameters_unknown));
|
|
EXPECT_TRUE(dmc->SetSendParameters(send_parameters_mixed));
|
|
EXPECT_TRUE(dmc->SetRecvParameters(recv_parameters_known));
|
|
EXPECT_FALSE(dmc->SetRecvParameters(recv_parameters_unknown));
|
|
EXPECT_FALSE(dmc->SetRecvParameters(recv_parameters_mixed));
|
|
}
|
|
|
|
TEST_F(RtpDataMediaChannelTest, AddRemoveSendStream) {
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
cricket::StreamParams stream1;
|
|
stream1.add_ssrc(41);
|
|
EXPECT_TRUE(dmc->AddSendStream(stream1));
|
|
cricket::StreamParams stream2;
|
|
stream2.add_ssrc(42);
|
|
EXPECT_TRUE(dmc->AddSendStream(stream2));
|
|
|
|
EXPECT_TRUE(dmc->RemoveSendStream(41));
|
|
EXPECT_TRUE(dmc->RemoveSendStream(42));
|
|
EXPECT_FALSE(dmc->RemoveSendStream(43));
|
|
}
|
|
|
|
TEST_F(RtpDataMediaChannelTest, AddRemoveRecvStream) {
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
cricket::StreamParams stream1;
|
|
stream1.add_ssrc(41);
|
|
EXPECT_TRUE(dmc->AddRecvStream(stream1));
|
|
cricket::StreamParams stream2;
|
|
stream2.add_ssrc(42);
|
|
EXPECT_TRUE(dmc->AddRecvStream(stream2));
|
|
EXPECT_FALSE(dmc->AddRecvStream(stream2));
|
|
|
|
EXPECT_TRUE(dmc->RemoveRecvStream(41));
|
|
EXPECT_TRUE(dmc->RemoveRecvStream(42));
|
|
}
|
|
|
|
TEST_F(RtpDataMediaChannelTest, SendData) {
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
cricket::SendDataParams params;
|
|
params.ssrc = 42;
|
|
unsigned char data[] = "food";
|
|
rtc::CopyOnWriteBuffer payload(data, 4);
|
|
unsigned char padded_data[] = {
|
|
0x00, 0x00, 0x00, 0x00, 'f', 'o', 'o', 'd',
|
|
};
|
|
cricket::SendDataResult result;
|
|
|
|
// Not sending
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
EXPECT_EQ(cricket::SDR_ERROR, result);
|
|
EXPECT_FALSE(HasSentData(0));
|
|
ASSERT_TRUE(dmc->SetSend(true));
|
|
|
|
// Unknown stream name.
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
EXPECT_EQ(cricket::SDR_ERROR, result);
|
|
EXPECT_FALSE(HasSentData(0));
|
|
|
|
cricket::StreamParams stream;
|
|
stream.add_ssrc(42);
|
|
ASSERT_TRUE(dmc->AddSendStream(stream));
|
|
|
|
// Unknown codec;
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
EXPECT_EQ(cricket::SDR_ERROR, result);
|
|
EXPECT_FALSE(HasSentData(0));
|
|
|
|
cricket::DataCodec codec;
|
|
codec.id = 103;
|
|
codec.name = cricket::kGoogleRtpDataCodecName;
|
|
cricket::DataSendParameters parameters;
|
|
parameters.codecs.push_back(codec);
|
|
ASSERT_TRUE(dmc->SetSendParameters(parameters));
|
|
|
|
// Length too large;
|
|
std::string x10000(10000, 'x');
|
|
EXPECT_FALSE(dmc->SendData(
|
|
params, rtc::CopyOnWriteBuffer(x10000.data(), x10000.length()), &result));
|
|
EXPECT_EQ(cricket::SDR_ERROR, result);
|
|
EXPECT_FALSE(HasSentData(0));
|
|
|
|
// Finally works!
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_EQ(cricket::SDR_SUCCESS, result);
|
|
ASSERT_TRUE(HasSentData(0));
|
|
EXPECT_EQ(sizeof(padded_data), GetSentData(0).length());
|
|
EXPECT_EQ(0, memcmp(padded_data, GetSentData(0).data(), sizeof(padded_data)));
|
|
cricket::RtpHeader header0 = GetSentDataHeader(0);
|
|
EXPECT_NE(0, header0.seq_num);
|
|
EXPECT_NE(0U, header0.timestamp);
|
|
EXPECT_EQ(header0.ssrc, 42U);
|
|
EXPECT_EQ(header0.payload_type, 103);
|
|
|
|
// Should bump timestamp by 180000 because the clock rate is 90khz.
|
|
SetNow(2);
|
|
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
ASSERT_TRUE(HasSentData(1));
|
|
EXPECT_EQ(sizeof(padded_data), GetSentData(1).length());
|
|
EXPECT_EQ(0, memcmp(padded_data, GetSentData(1).data(), sizeof(padded_data)));
|
|
cricket::RtpHeader header1 = GetSentDataHeader(1);
|
|
EXPECT_EQ(header1.ssrc, 42U);
|
|
EXPECT_EQ(header1.payload_type, 103);
|
|
EXPECT_EQ(static_cast<uint16_t>(header0.seq_num + 1),
|
|
static_cast<uint16_t>(header1.seq_num));
|
|
EXPECT_EQ(header0.timestamp + 180000, header1.timestamp);
|
|
}
|
|
|
|
TEST_F(RtpDataMediaChannelTest, SendDataRate) {
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
ASSERT_TRUE(dmc->SetSend(true));
|
|
|
|
cricket::DataCodec codec;
|
|
codec.id = 103;
|
|
codec.name = cricket::kGoogleRtpDataCodecName;
|
|
cricket::DataSendParameters parameters;
|
|
parameters.codecs.push_back(codec);
|
|
ASSERT_TRUE(dmc->SetSendParameters(parameters));
|
|
|
|
cricket::StreamParams stream;
|
|
stream.add_ssrc(42);
|
|
ASSERT_TRUE(dmc->AddSendStream(stream));
|
|
|
|
cricket::SendDataParams params;
|
|
params.ssrc = 42;
|
|
unsigned char data[] = "food";
|
|
rtc::CopyOnWriteBuffer payload(data, 4);
|
|
cricket::SendDataResult result;
|
|
|
|
// With rtp overhead of 32 bytes, each one of our packets is 36
|
|
// bytes, or 288 bits. So, a limit of 872bps will allow 3 packets,
|
|
// but not four.
|
|
parameters.max_bandwidth_bps = 872;
|
|
ASSERT_TRUE(dmc->SetSendParameters(parameters));
|
|
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
|
|
SetNow(0.9);
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
|
|
SetNow(1.1);
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
SetNow(1.9);
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
|
|
SetNow(2.2);
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_TRUE(dmc->SendData(params, payload, &result));
|
|
EXPECT_FALSE(dmc->SendData(params, payload, &result));
|
|
}
|
|
|
|
TEST_F(RtpDataMediaChannelTest, ReceiveData) {
|
|
// PT= 103, SN=2, TS=3, SSRC = 4, data = "abcde"
|
|
unsigned char data[] = {0x80, 0x67, 0x00, 0x02, 0x00, 0x00, 0x00,
|
|
0x03, 0x00, 0x00, 0x00, 0x2A, 0x00, 0x00,
|
|
0x00, 0x00, 'a', 'b', 'c', 'd', 'e'};
|
|
rtc::CopyOnWriteBuffer packet(data, sizeof(data));
|
|
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
// SetReceived not called.
|
|
dmc->OnPacketReceived(packet, /* packet_time_us */ -1);
|
|
EXPECT_FALSE(HasReceivedData());
|
|
|
|
dmc->SetReceive(true);
|
|
|
|
// Unknown payload id
|
|
dmc->OnPacketReceived(packet, /* packet_time_us */ -1);
|
|
EXPECT_FALSE(HasReceivedData());
|
|
|
|
cricket::DataCodec codec;
|
|
codec.id = 103;
|
|
codec.name = cricket::kGoogleRtpDataCodecName;
|
|
cricket::DataRecvParameters parameters;
|
|
parameters.codecs.push_back(codec);
|
|
ASSERT_TRUE(dmc->SetRecvParameters(parameters));
|
|
|
|
// Unknown stream
|
|
dmc->OnPacketReceived(packet, /* packet_time_us */ -1);
|
|
EXPECT_FALSE(HasReceivedData());
|
|
|
|
cricket::StreamParams stream;
|
|
stream.add_ssrc(42);
|
|
ASSERT_TRUE(dmc->AddRecvStream(stream));
|
|
|
|
// Finally works!
|
|
dmc->OnPacketReceived(packet, /* packet_time_us */ -1);
|
|
EXPECT_TRUE(HasReceivedData());
|
|
EXPECT_EQ("abcde", GetReceivedData());
|
|
EXPECT_EQ(5U, GetReceivedDataLen());
|
|
}
|
|
|
|
TEST_F(RtpDataMediaChannelTest, InvalidRtpPackets) {
|
|
unsigned char data[] = {0x80, 0x65, 0x00, 0x02};
|
|
rtc::CopyOnWriteBuffer packet(data, sizeof(data));
|
|
|
|
std::unique_ptr<cricket::RtpDataMediaChannel> dmc(CreateChannel());
|
|
|
|
// Too short
|
|
dmc->OnPacketReceived(packet, /* packet_time_us */ -1);
|
|
EXPECT_FALSE(HasReceivedData());
|
|
}
|