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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/command_line.h"
#include "base/run_loop.h"
#include "base/strings/stringprintf.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/scoped_feature_list.h"
#include "build/build_config.h"
#include "content/public/browser/video_capture_service.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "media/base/media_switches.h"
#include "media/capture/capture_switches.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "services/video_capture/public/cpp/mock_video_frame_handler.h"
#include "services/video_capture/public/mojom/device.mojom.h"
#include "services/video_capture/public/mojom/video_capture_service.mojom.h"
#include "services/video_capture/public/mojom/video_frame_handler.mojom.h"
#include "services/video_capture/public/mojom/video_source.mojom.h"
#include "services/video_capture/public/mojom/video_source_provider.mojom.h"
#include "testing/gmock/include/gmock/gmock.h"
using testing::_;
using testing::AtLeast;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::Return;
namespace content {
namespace {
using GetSourceInfosResult =
video_capture::mojom::VideoSourceProvider::GetSourceInfosResult;
static const char kVideoCaptureHtmlFile[] = "/media/video_capture_test.html";
static const char kStartVideoCaptureAndVerify[] =
"startVideoCaptureAndVerifySize(%d, %d)";
static const gfx::Size kVideoSize(320, 200);
} // namespace
// Integration test sets up a single fake device and obtains a connection to the
// video capture service via the Browser process' service manager. It then
// opens the device from clients. One client is the test calling into the
// video capture service directly. The second client is the Browser, which the
// test exercises through JavaScript.
class WebRtcVideoCaptureSharedDeviceBrowserTest : public ContentBrowserTest {
public:
WebRtcVideoCaptureSharedDeviceBrowserTest() = default;
WebRtcVideoCaptureSharedDeviceBrowserTest(
const WebRtcVideoCaptureSharedDeviceBrowserTest&) = delete;
WebRtcVideoCaptureSharedDeviceBrowserTest& operator=(
const WebRtcVideoCaptureSharedDeviceBrowserTest&) = delete;
~WebRtcVideoCaptureSharedDeviceBrowserTest() override {}
void OpenDeviceViaService() {
GetVideoCaptureService().ConnectToVideoSourceProvider(
video_source_provider_.BindNewPipeAndPassReceiver());
video_source_provider_->GetSourceInfos(base::BindOnce(
&WebRtcVideoCaptureSharedDeviceBrowserTest::OnSourceInfosReceived,
weak_factory_.GetWeakPtr(),
media::VideoCaptureBufferType::kSharedMemory));
}
void OpenDeviceInRendererAndWaitForPlaying() {
DCHECK(main_task_runner_->RunsTasksInCurrentSequence());
embedded_test_server()->StartAcceptingConnections();
GURL url(embedded_test_server()->GetURL(kVideoCaptureHtmlFile));
EXPECT_TRUE(NavigateToURL(shell(), url));
const std::string javascript_to_execute = base::StringPrintf(
kStartVideoCaptureAndVerify, kVideoSize.width(), kVideoSize.height());
// Start video capture and wait until it started rendering
ASSERT_TRUE(ExecJs(shell(), javascript_to_execute));
}
protected:
void SetUpCommandLine(base::CommandLine* command_line) override {
command_line->AppendSwitch(switches::kUseFakeUIForMediaStream);
command_line->AppendSwitch(
switches::kDisableVideoCaptureUseGpuMemoryBuffer);
}
void SetUp() override {
ASSERT_TRUE(embedded_test_server()->InitializeAndListen());
EnablePixelOutput();
ContentBrowserTest::SetUp();
}
void Initialize() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
main_task_runner_ = base::SingleThreadTaskRunner::GetCurrentDefault();
mock_video_frame_handler_ =
std::make_unique<video_capture::MockVideoFrameHandler>(
subscriber_.InitWithNewPipeAndPassReceiver());
}
scoped_refptr<base::SequencedTaskRunner> main_task_runner_;
std::unique_ptr<video_capture::MockVideoFrameHandler>
mock_video_frame_handler_;
private:
void OnSourceInfosReceived(
media::VideoCaptureBufferType buffer_type_to_request,
GetSourceInfosResult result,
const std::vector<media::VideoCaptureDeviceInfo>& infos) {
ASSERT_EQ(result, GetSourceInfosResult::kSuccess);
ASSERT_FALSE(infos.empty());
video_source_provider_->GetVideoSource(
infos[0].descriptor.device_id,
video_source_.BindNewPipeAndPassReceiver());
media::VideoCaptureParams requestable_settings;
ASSERT_FALSE(infos[0].supported_formats.empty());
requestable_settings.requested_format = infos[0].supported_formats[0];
requestable_settings.requested_format.frame_size = kVideoSize;
requestable_settings.buffer_type = buffer_type_to_request;
video_source_->CreatePushSubscription(
std::move(subscriber_), requestable_settings,
false /*force_reopen_with_new_settings*/,
subscription_.BindNewPipeAndPassReceiver(),
base::BindOnce(&WebRtcVideoCaptureSharedDeviceBrowserTest::
OnCreatePushSubscriptionCallback,
weak_factory_.GetWeakPtr()));
}
void OnCreatePushSubscriptionCallback(
video_capture::mojom::CreatePushSubscriptionResultCodePtr result_code,
const media::VideoCaptureParams& params) {
ASSERT_TRUE(result_code->is_success_code());
subscription_->Activate();
}
mojo::Remote<video_capture::mojom::VideoSourceProvider>
video_source_provider_;
mojo::Remote<video_capture::mojom::VideoSource> video_source_;
mojo::Remote<video_capture::mojom::PushVideoStreamSubscription> subscription_;
mojo::PendingRemote<video_capture::mojom::VideoFrameHandler> subscriber_;
base::WeakPtrFactory<WebRtcVideoCaptureSharedDeviceBrowserTest> weak_factory_{
this};
};
// Tests that a single fake video capture device can be opened via JavaScript
// by the Renderer while it is already in use by a direct client of the
// video capture service.
IN_PROC_BROWSER_TEST_F(
WebRtcVideoCaptureSharedDeviceBrowserTest,
ReceiveFrameInRendererWhileDeviceAlreadyInUseViaDirectServiceClient) {
Initialize();
base::RunLoop receive_frame_from_service_wait_loop;
auto expected_buffer_handle_tag =
media::mojom::VideoBufferHandle::Tag::kUnsafeShmemRegion;
ON_CALL(*mock_video_frame_handler_, DoOnNewBuffer(_, _))
.WillByDefault(Invoke(
[expected_buffer_handle_tag](
int32_t, media::mojom::VideoBufferHandlePtr* buffer_handle) {
ASSERT_EQ(expected_buffer_handle_tag, (*buffer_handle)->which());
}));
EXPECT_CALL(*mock_video_frame_handler_, DoOnFrameReadyInBuffer(_, _, _))
.WillOnce(InvokeWithoutArgs([&receive_frame_from_service_wait_loop]() {
receive_frame_from_service_wait_loop.Quit();
}))
.WillRepeatedly(Return());
OpenDeviceViaService();
// Note, if we do not wait for the first frame to arrive before opening the
// device in the Renderer, it could happen that the Renderer takes ove access
// to the device before a first frame is received by
// mock_video_frame_handler_.
receive_frame_from_service_wait_loop.Run();
OpenDeviceInRendererAndWaitForPlaying();
}
// Tests that a single fake video capture device can be opened by a direct
// client of the video capture service while it is already in use via JavaScript
// by the Renderer.
IN_PROC_BROWSER_TEST_F(
WebRtcVideoCaptureSharedDeviceBrowserTest,
ReceiveFrameViaDirectServiceClientWhileDeviceAlreadyInUseViaRenderer) {
Initialize();
base::RunLoop receive_frame_from_service_wait_loop;
auto expected_buffer_handle_tag =
media::mojom::VideoBufferHandle::Tag::kUnsafeShmemRegion;
ON_CALL(*mock_video_frame_handler_, DoOnNewBuffer(_, _))
.WillByDefault(Invoke(
[expected_buffer_handle_tag](
int32_t, media::mojom::VideoBufferHandlePtr* buffer_handle) {
ASSERT_EQ(expected_buffer_handle_tag, (*buffer_handle)->which());
}));
EXPECT_CALL(*mock_video_frame_handler_, DoOnFrameReadyInBuffer(_, _, _))
.WillOnce(InvokeWithoutArgs([&receive_frame_from_service_wait_loop]() {
receive_frame_from_service_wait_loop.Quit();
}))
.WillRepeatedly(Return());
OpenDeviceInRendererAndWaitForPlaying();
OpenDeviceViaService();
receive_frame_from_service_wait_loop.Run();
}
} // namespace content
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