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/*
* Copyright (c) 2015 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 <memory>
#include <string>
#include "call/rtp_transport_controller_send.h"
#include "call/rtp_video_sender.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "rtc_base/rate_limiter.h"
#include "test/field_trial.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/mock_transport.h"
#include "video/call_stats.h"
#include "video/send_delay_stats.h"
#include "video/send_statistics_proxy.h"
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::Invoke;
using ::testing::NiceMock;
using ::testing::Return;
using ::testing::Unused;
namespace webrtc {
namespace {
const int8_t kPayloadType = 96;
const uint32_t kSsrc1 = 12345;
const uint32_t kSsrc2 = 23456;
const int16_t kInitialPictureId1 = 222;
const int16_t kInitialPictureId2 = 44;
const int16_t kInitialTl0PicIdx1 = 99;
const int16_t kInitialTl0PicIdx2 = 199;
const int64_t kRetransmitWindowSizeMs = 500;
class MockRtcpIntraFrameObserver : public RtcpIntraFrameObserver {
public:
MOCK_METHOD1(OnReceivedIntraFrameRequest, void(uint32_t));
};
class MockOverheadObserver : public OverheadObserver {
public:
MOCK_METHOD1(OnOverheadChanged, void(size_t overhead_bytes_per_packet));
};
class MockCongestionObserver : public NetworkChangedObserver {
public:
MOCK_METHOD4(OnNetworkChanged,
void(uint32_t bitrate_bps,
uint8_t fraction_loss,
int64_t rtt_ms,
int64_t probing_interval_ms));
};
RtpSenderObservers CreateObservers(
RtcpRttStats* rtcp_rtt_stats,
RtcpIntraFrameObserver* intra_frame_callback,
RtcpStatisticsCallback* rtcp_stats,
StreamDataCountersCallback* rtp_stats,
BitrateStatisticsObserver* bitrate_observer,
FrameCountObserver* frame_count_observer,
RtcpPacketTypeCounterObserver* rtcp_type_observer,
SendSideDelayObserver* send_delay_observer,
SendPacketObserver* send_packet_observer,
OverheadObserver* overhead_observer) {
RtpSenderObservers observers;
observers.rtcp_rtt_stats = rtcp_rtt_stats;
observers.intra_frame_callback = intra_frame_callback;
observers.rtcp_stats = rtcp_stats;
observers.rtp_stats = rtp_stats;
observers.bitrate_observer = bitrate_observer;
observers.frame_count_observer = frame_count_observer;
observers.rtcp_type_observer = rtcp_type_observer;
observers.send_delay_observer = send_delay_observer;
observers.send_packet_observer = send_packet_observer;
observers.overhead_observer = overhead_observer;
return observers;
}
class RtpVideoSenderTestFixture {
public:
RtpVideoSenderTestFixture(
const std::vector<uint32_t>& ssrcs,
int payload_type,
const std::map<uint32_t, RtpPayloadState>& suspended_payload_states)
: clock_(0),
config_(&transport_),
send_delay_stats_(&clock_),
transport_controller_(&clock_, &event_log_, nullptr, bitrate_config_),
process_thread_(ProcessThread::Create("test_thread")),
call_stats_(&clock_, process_thread_.get()),
stats_proxy_(&clock_,
config_,
VideoEncoderConfig::ContentType::kRealtimeVideo),
retransmission_rate_limiter_(&clock_, kRetransmitWindowSizeMs) {
for (uint32_t ssrc : ssrcs) {
config_.rtp.ssrcs.push_back(ssrc);
}
config_.rtp.payload_type = payload_type;
std::map<uint32_t, RtpState> suspended_ssrcs;
router_ = absl::make_unique<RtpVideoSender>(
config_.rtp.ssrcs, suspended_ssrcs, suspended_payload_states,
config_.rtp, config_.rtcp, &transport_,
CreateObservers(&call_stats_, &encoder_feedback_, &stats_proxy_,
&stats_proxy_, &stats_proxy_, &stats_proxy_,
&stats_proxy_, &stats_proxy_, &send_delay_stats_,
&overhead_observer_),
&transport_controller_, &event_log_, &retransmission_rate_limiter_);
}
RtpVideoSender* router() { return router_.get(); }
private:
NiceMock<MockTransport> transport_;
NiceMock<MockCongestionObserver> congestion_observer_;
NiceMock<MockOverheadObserver> overhead_observer_;
NiceMock<MockRtcpIntraFrameObserver> encoder_feedback_;
SimulatedClock clock_;
RtcEventLogNullImpl event_log_;
VideoSendStream::Config config_;
SendDelayStats send_delay_stats_;
BitrateConstraints bitrate_config_;
RtpTransportControllerSend transport_controller_;
std::unique_ptr<ProcessThread> process_thread_;
CallStats call_stats_;
SendStatisticsProxy stats_proxy_;
RateLimiter retransmission_rate_limiter_;
std::unique_ptr<RtpVideoSender> router_;
};
} // namespace
TEST(RtpVideoSenderTest, SendOnOneModule) {
uint8_t payload = 'a';
EncodedImage encoded_image;
encoded_image._timeStamp = 1;
encoded_image.capture_time_ms_ = 2;
encoded_image._frameType = kVideoFrameKey;
encoded_image._buffer = &payload;
encoded_image._length = 1;
RtpVideoSenderTestFixture test({kSsrc1}, kPayloadType, {});
EXPECT_NE(
EncodedImageCallback::Result::OK,
test.router()->OnEncodedImage(encoded_image, nullptr, nullptr).error);
test.router()->SetActive(true);
EXPECT_EQ(
EncodedImageCallback::Result::OK,
test.router()->OnEncodedImage(encoded_image, nullptr, nullptr).error);
test.router()->SetActive(false);
EXPECT_NE(
EncodedImageCallback::Result::OK,
test.router()->OnEncodedImage(encoded_image, nullptr, nullptr).error);
test.router()->SetActive(true);
EXPECT_EQ(
EncodedImageCallback::Result::OK,
test.router()->OnEncodedImage(encoded_image, nullptr, nullptr).error);
}
TEST(RtpVideoSenderTest, SendSimulcastSetActive) {
uint8_t payload = 'a';
EncodedImage encoded_image;
encoded_image._timeStamp = 1;
encoded_image.capture_time_ms_ = 2;
encoded_image._frameType = kVideoFrameKey;
encoded_image._buffer = &payload;
encoded_image._length = 1;
RtpVideoSenderTestFixture test({kSsrc1, kSsrc2}, kPayloadType, {});
CodecSpecificInfo codec_info_1;
memset(&codec_info_1, 0, sizeof(CodecSpecificInfo));
codec_info_1.codecType = kVideoCodecVP8;
codec_info_1.codecSpecific.VP8.simulcastIdx = 0;
test.router()->SetActive(true);
EXPECT_EQ(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_1, nullptr)
.error);
CodecSpecificInfo codec_info_2;
memset(&codec_info_2, 0, sizeof(CodecSpecificInfo));
codec_info_2.codecType = kVideoCodecVP8;
codec_info_2.codecSpecific.VP8.simulcastIdx = 1;
EXPECT_EQ(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_2, nullptr)
.error);
// Inactive.
test.router()->SetActive(false);
EXPECT_NE(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_1, nullptr)
.error);
EXPECT_NE(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_2, nullptr)
.error);
}
// Tests how setting individual rtp modules to active affects the overall
// behavior of the payload router. First sets one module to active and checks
// that outgoing data can be sent on this module, and checks that no data can
// be sent if both modules are inactive.
TEST(RtpVideoSenderTest, SendSimulcastSetActiveModules) {
uint8_t payload = 'a';
EncodedImage encoded_image;
encoded_image._timeStamp = 1;
encoded_image.capture_time_ms_ = 2;
encoded_image._frameType = kVideoFrameKey;
encoded_image._buffer = &payload;
encoded_image._length = 1;
RtpVideoSenderTestFixture test({kSsrc1, kSsrc2}, kPayloadType, {});
CodecSpecificInfo codec_info_1;
memset(&codec_info_1, 0, sizeof(CodecSpecificInfo));
codec_info_1.codecType = kVideoCodecVP8;
codec_info_1.codecSpecific.VP8.simulcastIdx = 0;
CodecSpecificInfo codec_info_2;
memset(&codec_info_2, 0, sizeof(CodecSpecificInfo));
codec_info_2.codecType = kVideoCodecVP8;
codec_info_2.codecSpecific.VP8.simulcastIdx = 1;
// Only setting one stream to active will still set the payload router to
// active and allow sending data on the active stream.
std::vector<bool> active_modules({true, false});
test.router()->SetActiveModules(active_modules);
EXPECT_EQ(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_1, nullptr)
.error);
// Setting both streams to inactive will turn the payload router to
// inactive.
active_modules = {false, false};
test.router()->SetActiveModules(active_modules);
// An incoming encoded image will not ask the module to send outgoing data
// because the payload router is inactive.
EXPECT_NE(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_1, nullptr)
.error);
EXPECT_NE(EncodedImageCallback::Result::OK,
test.router()
->OnEncodedImage(encoded_image, &codec_info_2, nullptr)
.error);
}
TEST(RtpVideoSenderTest, CreateWithNoPreviousStates) {
RtpVideoSenderTestFixture test({kSsrc1, kSsrc2}, kPayloadType, {});
test.router()->SetActive(true);
std::map<uint32_t, RtpPayloadState> initial_states =
test.router()->GetRtpPayloadStates();
EXPECT_EQ(2u, initial_states.size());
EXPECT_NE(initial_states.find(kSsrc1), initial_states.end());
EXPECT_NE(initial_states.find(kSsrc2), initial_states.end());
}
TEST(RtpVideoSenderTest, CreateWithPreviousStates) {
const int64_t kState1SharedFrameId = 123;
const int64_t kState2SharedFrameId = 234;
RtpPayloadState state1;
state1.picture_id = kInitialPictureId1;
state1.tl0_pic_idx = kInitialTl0PicIdx1;
state1.shared_frame_id = kState1SharedFrameId;
RtpPayloadState state2;
state2.picture_id = kInitialPictureId2;
state2.tl0_pic_idx = kInitialTl0PicIdx2;
state2.shared_frame_id = kState2SharedFrameId;
std::map<uint32_t, RtpPayloadState> states = {{kSsrc1, state1},
{kSsrc2, state2}};
RtpVideoSenderTestFixture test({kSsrc1, kSsrc2}, kPayloadType, states);
test.router()->SetActive(true);
std::map<uint32_t, RtpPayloadState> initial_states =
test.router()->GetRtpPayloadStates();
EXPECT_EQ(2u, initial_states.size());
EXPECT_EQ(kInitialPictureId1, initial_states[kSsrc1].picture_id);
EXPECT_EQ(kInitialTl0PicIdx1, initial_states[kSsrc1].tl0_pic_idx);
EXPECT_EQ(kInitialPictureId2, initial_states[kSsrc2].picture_id);
EXPECT_EQ(kInitialTl0PicIdx2, initial_states[kSsrc2].tl0_pic_idx);
EXPECT_EQ(kState2SharedFrameId, initial_states[kSsrc1].shared_frame_id);
EXPECT_EQ(kState2SharedFrameId, initial_states[kSsrc2].shared_frame_id);
}
} // namespace webrtc