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// Copyright 2014 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.
// Implementation of a VideoCaptureDeviceFactory class for Windows platforms.
#ifndef MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_FACTORY_WIN_H_
#define MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_FACTORY_WIN_H_
#include <d3d11.h>
// Avoid including strsafe.h via dshow as it will cause build warnings.
#define NO_DSHOW_STRSAFE
#include <dshow.h>
#include <mfidl.h>
#include <windows.devices.enumeration.h>
#include <wrl.h>
#include "base/macros.h"
#include "base/threading/thread.h"
#include "media/base/win/dxgi_device_manager.h"
#include "media/capture/video/video_capture_device_factory.h"
namespace media {
using ABI::Windows::Foundation::IAsyncOperation;
using ABI::Windows::Devices::Enumeration::DeviceInformationCollection;
// Extension of VideoCaptureDeviceFactory to create and manipulate Windows
// devices, via either DirectShow or MediaFoundation APIs.
class CAPTURE_EXPORT VideoCaptureDeviceFactoryWin
: public VideoCaptureDeviceFactory {
public:
static bool PlatformSupportsMediaFoundation();
VideoCaptureDeviceFactoryWin();
VideoCaptureDeviceFactoryWin(const VideoCaptureDeviceFactoryWin&) = delete;
VideoCaptureDeviceFactoryWin& operator=(const VideoCaptureDeviceFactoryWin&) =
delete;
~VideoCaptureDeviceFactoryWin() override;
std::unique_ptr<VideoCaptureDevice> CreateDevice(
const VideoCaptureDeviceDescriptor& device_descriptor) override;
void GetDevicesInfo(GetDevicesInfoCallback callback) override;
void set_use_media_foundation_for_testing(bool use) {
use_media_foundation_ = use;
}
void set_use_d3d11_with_media_foundation_for_testing(bool use) {
use_d3d11_with_media_foundation_ = use;
}
protected:
// Protected and virtual for testing.
virtual bool CreateDeviceEnumMonikerDirectShow(IEnumMoniker** enum_moniker);
virtual bool CreateDeviceFilterDirectShow(const std::string& device_id,
IBaseFilter** capture_filter);
virtual bool CreateDeviceFilterDirectShow(
Microsoft::WRL::ComPtr<IMoniker> moniker,
IBaseFilter** capture_filter);
virtual bool CreateDeviceSourceMediaFoundation(const std::string& device_id,
VideoCaptureApi capture_api,
IMFMediaSource** source_out);
virtual bool CreateDeviceSourceMediaFoundation(
Microsoft::WRL::ComPtr<IMFAttributes> attributes,
IMFMediaSource** source);
virtual bool EnumerateDeviceSourcesMediaFoundation(
Microsoft::WRL::ComPtr<IMFAttributes> attributes,
IMFActivate*** devices,
UINT32* count);
virtual VideoCaptureFormats GetSupportedFormatsDirectShow(
Microsoft::WRL::ComPtr<IBaseFilter> capture_filter,
const std::string& display_name);
virtual VideoCaptureFormats GetSupportedFormatsMediaFoundation(
Microsoft::WRL::ComPtr<IMFMediaSource> source,
const std::string& display_name);
bool use_d3d11_with_media_foundation_for_testing() {
return use_d3d11_with_media_foundation_;
}
scoped_refptr<DXGIDeviceManager> dxgi_device_manager_for_testing() {
return dxgi_device_manager_;
}
private:
void EnumerateDevicesUWP(std::vector<VideoCaptureDeviceInfo> devices_info,
GetDevicesInfoCallback result_callback);
void FoundAllDevicesUWP(
std::vector<VideoCaptureDeviceInfo> devices_info,
GetDevicesInfoCallback result_callback,
IAsyncOperation<DeviceInformationCollection*>* operation);
void DeviceInfoReady(std::vector<VideoCaptureDeviceInfo> devices_info,
GetDevicesInfoCallback result_callback);
std::vector<VideoCaptureDeviceInfo> GetDevicesInfoMediaFoundation();
void AugmentDevicesListWithDirectShowOnlyDevices(
std::vector<VideoCaptureDeviceInfo>* devices_info);
std::vector<VideoCaptureDeviceInfo> GetDevicesInfoDirectShow();
bool use_media_foundation_;
bool use_d3d11_with_media_foundation_;
// For calling WinRT methods on a COM initiated thread.
base::Thread com_thread_;
scoped_refptr<base::SingleThreadTaskRunner> origin_task_runner_;
std::unordered_set<IAsyncOperation<DeviceInformationCollection*>*> async_ops_;
// For hardware acceleration in MediaFoundation capture engine
scoped_refptr<DXGIDeviceManager> dxgi_device_manager_;
base::WeakPtrFactory<VideoCaptureDeviceFactoryWin> weak_ptr_factory_{this};
};
} // namespace media
#endif // MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_FACTORY_WIN_H_
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