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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/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "media/cast/cast_defines.h"
#include "media/cast/cast_thread.h"
#include "media/cast/test/fake_task_runner.h"
#include "media/cast/video_sender/video_encoder.h"
#include "testing/gmock/include/gmock/gmock.h"
namespace media {
namespace cast {
using testing::_;
static void ReleaseFrame(const I420VideoFrame* frame) {
// Empty since we in this test send in the same frame.
}
class TestVideoEncoderCallback :
public base::RefCountedThreadSafe<TestVideoEncoderCallback> {
public:
TestVideoEncoderCallback() {}
void SetExpectedResult(bool expected_key_frame,
uint8 expected_frame_id,
uint8 expected_last_referenced_frame_id,
const base::TimeTicks& expected_capture_time) {
expected_key_frame_ = expected_key_frame;
expected_frame_id_ = expected_frame_id;
expected_last_referenced_frame_id_ = expected_last_referenced_frame_id;
expected_capture_time_ = expected_capture_time;
}
void DeliverEncodedVideoFrame(scoped_ptr<EncodedVideoFrame> encoded_frame,
const base::TimeTicks& capture_time) {
EXPECT_EQ(expected_key_frame_, encoded_frame->key_frame);
EXPECT_EQ(expected_frame_id_, encoded_frame->frame_id);
EXPECT_EQ(expected_last_referenced_frame_id_,
encoded_frame->last_referenced_frame_id);
EXPECT_EQ(expected_capture_time_, capture_time);
}
private:
bool expected_key_frame_;
uint8 expected_frame_id_;
uint8 expected_last_referenced_frame_id_;
base::TimeTicks expected_capture_time_;
};
class VideoEncoderTest : public ::testing::Test {
protected:
VideoEncoderTest()
: pixels_(320 * 240, 123),
test_video_encoder_callback_(new TestVideoEncoderCallback()) {
video_config_.sender_ssrc = 1;
video_config_.incoming_feedback_ssrc = 2;
video_config_.rtp_payload_type = 127;
video_config_.use_external_encoder = false;
video_config_.width = 320;
video_config_.height = 240;
video_config_.max_bitrate = 5000000;
video_config_.min_bitrate = 1000000;
video_config_.start_bitrate = 2000000;
video_config_.max_qp = 56;
video_config_.min_qp = 0;
video_config_.max_frame_rate = 30;
video_config_.max_number_of_video_buffers_used = 3;
video_config_.codec = kVp8;
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 = &(pixels_[0]);
video_frame_.u_plane.stride = video_frame_.width / 2;
video_frame_.u_plane.length = video_frame_.width / 2;
video_frame_.u_plane.data = &(pixels_[0]);
video_frame_.v_plane.stride = video_frame_.width / 2;
video_frame_.v_plane.length = video_frame_.width / 2;
video_frame_.v_plane.data = &(pixels_[0]);
}
~VideoEncoderTest() {}
virtual void SetUp() {
task_runner_ = new test::FakeTaskRunner(&testing_clock_);
cast_thread_ = new CastThread(task_runner_, task_runner_, task_runner_,
task_runner_, task_runner_);
}
void Configure(uint8 max_unacked_frames) {
video_encoder_= new VideoEncoder(cast_thread_, video_config_,
max_unacked_frames);
video_encoder_controller_ = video_encoder_.get();
}
base::SimpleTestTickClock testing_clock_;
std::vector<uint8> pixels_;
scoped_refptr<TestVideoEncoderCallback> test_video_encoder_callback_;
VideoSenderConfig video_config_;
scoped_refptr<test::FakeTaskRunner> task_runner_;
scoped_refptr<VideoEncoder> video_encoder_;
VideoEncoderController* video_encoder_controller_;
I420VideoFrame video_frame_;
scoped_refptr<CastThread> cast_thread_;
};
TEST_F(VideoEncoderTest, EncodePattern30fpsRunningOutOfAck) {
Configure(3);
VideoEncoder::FrameEncodedCallback frame_encoded_callback =
base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
test_video_encoder_callback_.get());
base::TimeTicks capture_time;
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(true, 0, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
capture_time += base::TimeDelta::FromMilliseconds(33);
video_encoder_controller_->LatestFrameIdToReference(0);
test_video_encoder_callback_->SetExpectedResult(false, 1, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
capture_time += base::TimeDelta::FromMilliseconds(33);
video_encoder_controller_->LatestFrameIdToReference(1);
test_video_encoder_callback_->SetExpectedResult(false, 2, 1, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(2);
for (int i = 3; i < 6; ++i) {
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, i, 2, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
}
}
TEST_F(VideoEncoderTest, EncodePattern60fpsRunningOutOfAck) {
Configure(6);
base::TimeTicks capture_time;
VideoEncoder::FrameEncodedCallback frame_encoded_callback =
base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
test_video_encoder_callback_.get());
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(true, 0, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(0);
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, 1, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(1);
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, 2, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(2);
for (int i = 3; i < 9; ++i) {
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, i, 2, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
}
}
TEST_F(VideoEncoderTest, EncodePattern60fps200msDelayRunningOutOfAck) {
Configure(12);
base::TimeTicks capture_time;
VideoEncoder::FrameEncodedCallback frame_encoded_callback =
base::Bind(&TestVideoEncoderCallback::DeliverEncodedVideoFrame,
test_video_encoder_callback_.get());
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(true, 0, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(0);
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, 1, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(1);
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, 2, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(2);
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, 3, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(3);
capture_time += base::TimeDelta::FromMilliseconds(33);
test_video_encoder_callback_->SetExpectedResult(false, 4, 0, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
video_encoder_controller_->LatestFrameIdToReference(4);
for (int i = 5; i < 17; ++i) {
test_video_encoder_callback_->SetExpectedResult(false, i, 4, capture_time);
EXPECT_TRUE(video_encoder_->EncodeVideoFrame(&video_frame_, capture_time,
frame_encoded_callback, base::Bind(ReleaseFrame, &video_frame_)));
task_runner_->RunTasks();
}
}
} // namespace cast
} // namespace media
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