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// Copyright (c) 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 "media/video/capture/screen/screen_capture_device.h"
#include "base/basictypes.h"
#include "base/sequenced_task_runner.h"
#include "base/synchronization/waitable_event.h"
#include "base/test/test_timeouts.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/time.h"
#include "media/video/capture/screen/screen_capture_data.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::_;
using ::testing::DoAll;
using ::testing::InvokeWithoutArgs;
using ::testing::SaveArg;
namespace media {
namespace {
const int kTestFrameWidth1 = 100;
const int kTestFrameHeight1 = 100;
const int kTestFrameWidth2 = 200;
const int kTestFrameHeight2 = 150;
const int kBufferSize = kTestFrameWidth2 * kTestFrameHeight2 * 4;
const int kFrameRate = 30;
class MockFrameObserver : public VideoCaptureDevice::EventHandler {
public:
MOCK_METHOD0(ReserveOutputBuffer, scoped_refptr<media::VideoFrame>());
MOCK_METHOD0(OnError, void());
MOCK_METHOD1(OnFrameInfo, void(const VideoCaptureCapability& info));
MOCK_METHOD6(OnIncomingCapturedFrame, void(const uint8* data,
int length,
base::Time timestamp,
int rotation,
bool flip_vert,
bool flip_horiz));
MOCK_METHOD2(OnIncomingCapturedVideoFrame,
void(const scoped_refptr<media::VideoFrame>& frame,
base::Time timestamp));
};
// TODO(sergeyu): Move this to a separate file where it can be reused.
class FakeScreenCapturer : public ScreenCapturer {
public:
FakeScreenCapturer()
: delegate_(NULL),
frame_index_(0) {
buffer_.reset(new uint8[kBufferSize]);
frames_[0] = new ScreenCaptureData(
buffer_.get(), kTestFrameWidth1 * ScreenCaptureData::kBytesPerPixel,
SkISize::Make(kTestFrameWidth1, kTestFrameHeight1));
frames_[1] = new ScreenCaptureData(
buffer_.get(), kTestFrameWidth2 * ScreenCaptureData::kBytesPerPixel,
SkISize::Make(kTestFrameWidth2, kTestFrameHeight2));
}
virtual ~FakeScreenCapturer() {}
// VideoFrameCapturer interface.
virtual void Start(Delegate* delegate) OVERRIDE {
delegate_ = delegate;
}
virtual void CaptureFrame() OVERRIDE {
scoped_refptr<ScreenCaptureData> frame =
frames_[frame_index_ % arraysize(frames_)];
frame_index_++;
delegate_->OnCaptureCompleted(frame);
}
private:
Delegate* delegate_;
scoped_ptr<uint8[]> buffer_;
scoped_refptr<ScreenCaptureData> frames_[2];
int frame_index_;
};
class ScreenCaptureDeviceTest : public testing::Test {
public:
virtual void SetUp() OVERRIDE {
worker_pool_ = new base::SequencedWorkerPool(3, "TestCaptureThread");
}
protected:
scoped_refptr<base::SequencedWorkerPool> worker_pool_;
};
} // namespace
TEST_F(ScreenCaptureDeviceTest, Capture) {
ScreenCaptureDevice capture_device(
worker_pool_->GetSequencedTaskRunner(worker_pool_->GetSequenceToken()));
VideoCaptureCapability caps;
base::WaitableEvent done_event(false, false);
int frame_size;
MockFrameObserver frame_observer;
EXPECT_CALL(frame_observer, OnFrameInfo(_))
.WillOnce(SaveArg<0>(&caps));
EXPECT_CALL(frame_observer, OnError())
.Times(0);
EXPECT_CALL(frame_observer, OnIncomingCapturedFrame(_, _, _, _, _, _))
.WillRepeatedly(DoAll(
SaveArg<1>(&frame_size),
InvokeWithoutArgs(&done_event, &base::WaitableEvent::Signal)));
capture_device.Allocate(640, 480, kFrameRate, &frame_observer);
capture_device.Start();
EXPECT_TRUE(done_event.TimedWait(TestTimeouts::action_max_timeout()));
capture_device.Stop();
capture_device.DeAllocate();
EXPECT_GT(caps.width, 0);
EXPECT_GT(caps.height, 0);
EXPECT_EQ(kFrameRate, caps.frame_rate);
EXPECT_EQ(VideoCaptureCapability::kARGB, caps.color);
EXPECT_FALSE(caps.interlaced);
EXPECT_EQ(caps.width * caps.height * 4, frame_size);
}
// Test that screen capturer can handle resolution change without crashing.
TEST_F(ScreenCaptureDeviceTest, ScreenResolutionChange) {
FakeScreenCapturer* mock_capturer = new FakeScreenCapturer();
ScreenCaptureDevice capture_device(
worker_pool_->GetSequencedTaskRunner(worker_pool_->GetSequenceToken()));
capture_device.SetScreenCapturerForTest(
scoped_ptr<ScreenCapturer>(mock_capturer));
VideoCaptureCapability caps;
base::WaitableEvent done_event(false, false);
int frame_size;
MockFrameObserver frame_observer;
EXPECT_CALL(frame_observer, OnFrameInfo(_))
.WillOnce(SaveArg<0>(&caps));
EXPECT_CALL(frame_observer, OnError())
.Times(0);
EXPECT_CALL(frame_observer, OnIncomingCapturedFrame(_, _, _, _, _, _))
.WillRepeatedly(DoAll(
SaveArg<1>(&frame_size),
InvokeWithoutArgs(&done_event, &base::WaitableEvent::Signal)));
capture_device.Allocate(640, 480, kFrameRate, &frame_observer);
capture_device.Start();
// Capture first frame.
EXPECT_TRUE(done_event.TimedWait(TestTimeouts::action_max_timeout()));
done_event.Reset();
// Capture second frame.
EXPECT_TRUE(done_event.TimedWait(TestTimeouts::action_max_timeout()));
capture_device.Stop();
capture_device.DeAllocate();
EXPECT_EQ(kTestFrameWidth1, caps.width);
EXPECT_EQ(kTestFrameHeight1, caps.height);
EXPECT_EQ(kFrameRate, caps.frame_rate);
EXPECT_EQ(VideoCaptureCapability::kARGB, caps.color);
EXPECT_FALSE(caps.interlaced);
EXPECT_EQ(caps.width * caps.height * 4, frame_size);
}
} // namespace media
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