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// Copyright (c) 2012 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 "base/bind.h"
#include "content/renderer/media/capture_video_decoder.h"
#include "content/renderer/media/video_capture_impl.h"
#include "content/renderer/media/video_capture_impl_manager.h"
#include "media/base/filters.h"
#include "media/base/limits.h"
#include "media/base/mock_callback.h"
#include "media/base/mock_filter_host.h"
#include "media/base/mock_filters.h"
#include "media/base/pipeline_status.h"
#include "media/video/capture/video_capture_types.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::Return;
using ::testing::StrictMock;
static const int kWidth = 176;
static const int kHeight = 144;
static const int kFPS = 30;
static const media::VideoCaptureSessionId kVideoStreamId = 1;
ACTION_P3(CreateDataBufferFromCapture, decoder, vc_impl, data_buffer_number) {
for (int i = 0; i < data_buffer_number; i++) {
media::VideoCapture::VideoFrameBuffer* buffer;
buffer = new media::VideoCapture::VideoFrameBuffer();
buffer->width = arg1.width;
buffer->height = arg1.height;
int length = buffer->width * buffer->height * 3 / 2;
buffer->memory_pointer = new uint8[length];
buffer->buffer_size = length;
decoder->OnBufferReady(vc_impl, buffer);
}
}
ACTION(DeleteDataBuffer) {
delete[] arg0->memory_pointer;
}
ACTION_P2(CaptureStopped, decoder, vc_impl) {
decoder->OnStopped(vc_impl);
}
class MockVideoCaptureImpl : public VideoCaptureImpl {
public:
MockVideoCaptureImpl(const media::VideoCaptureSessionId id,
scoped_refptr<base::MessageLoopProxy> ml_proxy,
VideoCaptureMessageFilter* filter)
: VideoCaptureImpl(id, ml_proxy, filter) {
}
virtual ~MockVideoCaptureImpl() {}
MOCK_METHOD2(StartCapture,
void(media::VideoCapture::EventHandler* handler,
const media::VideoCaptureCapability& capability));
MOCK_METHOD1(StopCapture, void(media::VideoCapture::EventHandler* handler));
MOCK_METHOD1(FeedBuffer, void(scoped_refptr<VideoFrameBuffer> buffer));
private:
DISALLOW_COPY_AND_ASSIGN(MockVideoCaptureImpl);
};
class MockVideoCaptureImplManager : public VideoCaptureImplManager {
public:
MockVideoCaptureImplManager() {}
virtual ~MockVideoCaptureImplManager() {}
MOCK_METHOD2(AddDevice,
media::VideoCapture*(media::VideoCaptureSessionId id,
media::VideoCapture::EventHandler* handler));
MOCK_METHOD2(RemoveDevice,
void(media::VideoCaptureSessionId id,
media::VideoCapture::EventHandler* handler));
private:
DISALLOW_COPY_AND_ASSIGN(MockVideoCaptureImplManager);
};
class CaptureVideoDecoderTest : public ::testing::Test {
protected:
CaptureVideoDecoderTest() {
message_loop_.reset(new MessageLoop(MessageLoop::TYPE_IO));
message_loop_proxy_ =
base::MessageLoopProxy::current().get();
vc_manager_ = new MockVideoCaptureImplManager();
media::VideoCaptureCapability capability;
capability.width = kWidth;
capability.height = kHeight;
capability.frame_rate = kFPS;
capability.expected_capture_delay = 0;
capability.color = media::VideoFrame::I420;
capability.interlaced = false;
decoder_ = new CaptureVideoDecoder(message_loop_proxy_,
kVideoStreamId, vc_manager_, capability);
decoder_->set_host(&host_);
EXPECT_CALL(statistics_cb_object_, OnStatistics(_))
.Times(AnyNumber());
read_cb_ = base::Bind(&CaptureVideoDecoderTest::FrameReady,
base::Unretained(this));
vc_impl_.reset(new MockVideoCaptureImpl(
kVideoStreamId, message_loop_proxy_, new VideoCaptureMessageFilter()));
}
virtual ~CaptureVideoDecoderTest() {
message_loop_->RunAllPending();
}
media::StatisticsCB NewStatisticsCB() {
return base::Bind(&media::MockStatisticsCB::OnStatistics,
base::Unretained(&statistics_cb_object_));
}
void Initialize() {
// Issue a read.
EXPECT_CALL(*this, FrameReady(_));
decoder_->Read(read_cb_);
EXPECT_CALL(*vc_manager_, AddDevice(_, _))
.WillOnce(Return(vc_impl_.get()));
int buffer_count = 1;
EXPECT_CALL(*vc_impl_, StartCapture(capture_client(), _))
.Times(1)
.WillOnce(CreateDataBufferFromCapture(capture_client(),
vc_impl_.get(),
buffer_count));
EXPECT_CALL(*vc_impl_, FeedBuffer(_))
.Times(buffer_count)
.WillRepeatedly(DeleteDataBuffer());
decoder_->Initialize(NULL,
media::NewExpectedStatusCB(media::PIPELINE_OK),
NewStatisticsCB());
message_loop_->RunAllPending();
}
void Play() {
decoder_->Play(media::NewExpectedClosure());
message_loop_->RunAllPending();
}
void Flush() {
// Issue a read.
EXPECT_CALL(*this, FrameReady(_));
decoder_->Read(read_cb_);
decoder_->Pause(media::NewExpectedClosure());
decoder_->Flush(media::NewExpectedClosure());
message_loop_->RunAllPending();
}
void Stop() {
EXPECT_CALL(*vc_impl_, StopCapture(capture_client()))
.Times(1)
.WillOnce(CaptureStopped(capture_client(), vc_impl_.get()));
EXPECT_CALL(*vc_manager_, RemoveDevice(_, _))
.WillOnce(Return());
decoder_->Stop(media::NewExpectedClosure());
message_loop_->RunAllPending();
}
media::VideoCapture::EventHandler* capture_client() {
return static_cast<media::VideoCapture::EventHandler*>(decoder_);
}
MOCK_METHOD1(FrameReady, void(scoped_refptr<media::VideoFrame>));
// Fixture members.
scoped_refptr<CaptureVideoDecoder> decoder_;
scoped_refptr<MockVideoCaptureImplManager> vc_manager_;
scoped_ptr<MockVideoCaptureImpl> vc_impl_;
media::MockStatisticsCB statistics_cb_object_;
StrictMock<media::MockFilterHost> host_;
scoped_ptr<MessageLoop> message_loop_;
scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
media::VideoDecoder::ReadCB read_cb_;
private:
DISALLOW_COPY_AND_ASSIGN(CaptureVideoDecoderTest);
};
TEST_F(CaptureVideoDecoderTest, Play) {
// Test basic initialize, play, and teardown sequence.
Initialize();
// Natural size should be initialized to default capability.
EXPECT_EQ(kWidth, decoder_->natural_size().width());
EXPECT_EQ(kHeight, decoder_->natural_size().height());
Play();
Flush();
Stop();
}
TEST_F(CaptureVideoDecoderTest, OnDeviceInfoReceived) {
// Test that natural size gets updated as device information is sent.
Initialize();
gfx::Size expected_size(kWidth * 2, kHeight * 2);
media::VideoCaptureParams params;
params.width = expected_size.width();
params.height = expected_size.height();
params.frame_per_second = kFPS;
params.session_id = kVideoStreamId;
decoder_->OnDeviceInfoReceived(vc_impl_.get(), params);
message_loop_->RunAllPending();
EXPECT_EQ(expected_size.width(), decoder_->natural_size().width());
EXPECT_EQ(expected_size.height(), decoder_->natural_size().height());
Stop();
}
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