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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <vector>
#include "base/bind.h"
#include "base/memory/scoped_ptr.h"
#include "base/test/simple_test_tick_clock.h"
#include "media/cast/cast_environment.h"
#include "media/cast/pacing/mock_paced_packet_sender.h"
#include "media/cast/pacing/paced_sender.h"
#include "media/cast/test/fake_task_runner.h"
#include "media/cast/video_sender/mock_video_encoder_controller.h"
#include "media/cast/video_sender/video_sender.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
namespace cast {
static const int64 kStartMillisecond = GG_INT64_C(12345678900000);
static const uint8 kPixelValue = 123;
using testing::_;
using testing::AtLeast;
namespace {
class PeerVideoSender : public VideoSender {
public:
PeerVideoSender(scoped_refptr<CastEnvironment> cast_environment,
const VideoSenderConfig& video_config,
VideoEncoderController* const video_encoder_controller,
PacedPacketSender* const paced_packet_sender)
: VideoSender(cast_environment, video_config,
video_encoder_controller, paced_packet_sender) {
}
using VideoSender::OnReceivedCastFeedback;
};
static void ReleaseVideoFrame(const I420VideoFrame* frame) {
delete [] frame->y_plane.data;
delete [] frame->u_plane.data;
delete [] frame->v_plane.data;
delete frame;
}
static void ReleaseEncodedFrame(const EncodedVideoFrame* frame) {
// Do nothing.
}
} // namespace
class VideoSenderTest : public ::testing::Test {
protected:
VideoSenderTest() {
testing_clock_.Advance(
base::TimeDelta::FromMilliseconds(kStartMillisecond));
}
virtual ~VideoSenderTest() {}
void InitEncoder(bool external) {
VideoSenderConfig video_config;
video_config.sender_ssrc = 1;
video_config.incoming_feedback_ssrc = 2;
video_config.rtp_payload_type = 127;
video_config.use_external_encoder = external;
video_config.width = 320;
video_config.height = 240;
video_config.max_bitrate = 5000000;
video_config.min_bitrate = 1000000;
video_config.start_bitrate = 1000000;
video_config.max_qp = 56;
video_config.min_qp = 0;
video_config.max_frame_rate = 30;
video_config.max_number_of_video_buffers_used = 1;
video_config.codec = kVp8;
if (external) {
video_sender_.reset(new PeerVideoSender(cast_environment_,
video_config, &mock_video_encoder_controller_, &mock_transport_));
} else {
video_sender_.reset(new PeerVideoSender(cast_environment_, video_config,
NULL, &mock_transport_));
}
}
virtual void SetUp() {
task_runner_ = new test::FakeTaskRunner(&testing_clock_);
cast_environment_ = new CastEnvironment(&testing_clock_, task_runner_,
task_runner_, task_runner_, task_runner_, task_runner_);
}
I420VideoFrame* AllocateNewVideoFrame() {
I420VideoFrame* video_frame = new I420VideoFrame();
video_frame->width = 320;
video_frame->height = 240;
video_frame->y_plane.stride = video_frame->width;
video_frame->y_plane.length = video_frame->width;
video_frame->y_plane.data =
new uint8[video_frame->width * video_frame->height];
memset(video_frame->y_plane.data, kPixelValue,
video_frame->width * video_frame->height);
video_frame->u_plane.stride = video_frame->width / 2;
video_frame->u_plane.length = video_frame->width / 2;
video_frame->u_plane.data =
new uint8[video_frame->width * video_frame->height / 4];
memset(video_frame->u_plane.data, kPixelValue,
video_frame->width * video_frame->height / 4);
video_frame->v_plane.stride = video_frame->width / 2;
video_frame->v_plane.length = video_frame->width / 2;
video_frame->v_plane.data =
new uint8[video_frame->width * video_frame->height / 4];
memset(video_frame->v_plane.data, kPixelValue,
video_frame->width * video_frame->height / 4);
return video_frame;
}
MockVideoEncoderController mock_video_encoder_controller_;
base::SimpleTestTickClock testing_clock_;
MockPacedPacketSender mock_transport_;
scoped_refptr<test::FakeTaskRunner> task_runner_;
scoped_ptr<PeerVideoSender> video_sender_;
scoped_refptr<CastEnvironment> cast_environment_;
};
TEST_F(VideoSenderTest, BuiltInEncoder) {
EXPECT_CALL(mock_transport_, SendPackets(_)).Times(1);
InitEncoder(false);
I420VideoFrame* video_frame = AllocateNewVideoFrame();
base::TimeTicks capture_time;
video_sender_->InsertRawVideoFrame(video_frame, capture_time,
base::Bind(&ReleaseVideoFrame, video_frame));
task_runner_->RunTasks();
}
TEST_F(VideoSenderTest, ExternalEncoder) {
EXPECT_CALL(mock_transport_, SendPackets(_)).Times(1);
EXPECT_CALL(mock_video_encoder_controller_, SkipNextFrame(false)).Times(1);
InitEncoder(true);
EncodedVideoFrame video_frame;
base::TimeTicks capture_time;
video_frame.codec = kVp8;
video_frame.key_frame = true;
video_frame.frame_id = 0;
video_frame.last_referenced_frame_id = 0;
video_frame.data.insert(video_frame.data.begin(), 1000, kPixelValue);
video_sender_->InsertCodedVideoFrame(&video_frame, capture_time,
base::Bind(&ReleaseEncodedFrame, &video_frame));
}
TEST_F(VideoSenderTest, RtcpTimer) {
EXPECT_CALL(mock_transport_, SendPackets(_)).Times(AtLeast(1));
EXPECT_CALL(mock_transport_, SendRtcpPacket(_)).Times(1);
EXPECT_CALL(mock_video_encoder_controller_,
SkipNextFrame(false)).Times(AtLeast(1));
InitEncoder(true);
EncodedVideoFrame video_frame;
base::TimeTicks capture_time;
video_frame.codec = kVp8;
video_frame.key_frame = true;
video_frame.frame_id = 0;
video_frame.last_referenced_frame_id = 0;
video_frame.data.insert(video_frame.data.begin(), 1000, kPixelValue);
video_sender_->InsertCodedVideoFrame(&video_frame, capture_time,
base::Bind(&ReleaseEncodedFrame, &video_frame));
// Make sure that we send at least one RTCP packet.
base::TimeDelta max_rtcp_timeout =
base::TimeDelta::FromMilliseconds(1 + kDefaultRtcpIntervalMs * 3 / 2);
testing_clock_.Advance(max_rtcp_timeout);
task_runner_->RunTasks();
}
TEST_F(VideoSenderTest, ResendTimer) {
EXPECT_CALL(mock_transport_, SendPackets(_)).Times(2);
EXPECT_CALL(mock_transport_, ResendPackets(_)).Times(1);
InitEncoder(false);
I420VideoFrame* video_frame = AllocateNewVideoFrame();
base::TimeTicks capture_time;
video_sender_->InsertRawVideoFrame(video_frame, capture_time,
base::Bind(&ReleaseVideoFrame, video_frame));
task_runner_->RunTasks();
// ACK the key frame.
RtcpCastMessage cast_feedback(1);
cast_feedback.media_ssrc_ = 2;
cast_feedback.ack_frame_id_ = 0;
video_sender_->OnReceivedCastFeedback(cast_feedback);
video_frame = AllocateNewVideoFrame();
video_sender_->InsertRawVideoFrame(video_frame, capture_time,
base::Bind(&ReleaseVideoFrame, video_frame));
task_runner_->RunTasks();
base::TimeDelta max_resend_timeout =
base::TimeDelta::FromMilliseconds(1 + kDefaultRtpMaxDelayMs);
// Make sure that we do a re-send.
testing_clock_.Advance(max_resend_timeout);
task_runner_->RunTasks();
}
} // namespace cast
} // namespace media
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