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// Copyright 2018 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.
#ifndef MEDIA_CAPTURE_VIDEO_FUCHSIA_VIDEO_CAPTURE_DEVICE_FACTORY_FUCHSIA_H_
#define MEDIA_CAPTURE_VIDEO_FUCHSIA_VIDEO_CAPTURE_DEVICE_FACTORY_FUCHSIA_H_
#include <fuchsia/camera3/cpp/fidl.h>
#include <map>
#include "base/containers/small_map.h"
#include "media/capture/video/video_capture_device_factory.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
namespace media {
class CAPTURE_EXPORT VideoCaptureDeviceFactoryFuchsia
: public VideoCaptureDeviceFactory {
public:
VideoCaptureDeviceFactoryFuchsia();
~VideoCaptureDeviceFactoryFuchsia() override;
VideoCaptureDeviceFactoryFuchsia(const VideoCaptureDeviceFactoryFuchsia&) =
delete;
VideoCaptureDeviceFactoryFuchsia& operator=(
const VideoCaptureDeviceFactoryFuchsia&) = delete;
// VideoCaptureDeviceFactory implementation.
VideoCaptureErrorOrDevice CreateDevice(
const VideoCaptureDeviceDescriptor& device_descriptor) override;
void GetDevicesInfo(GetDevicesInfoCallback callback) override;
private:
// Helper class used to fetch per-device information.
class DeviceConfigFetcher;
void Initialize();
void OnDeviceWatcherDisconnected(zx_status_t status);
void WatchDevices();
void OnWatchDevicesResult(
std::vector<fuchsia::camera3::WatchDevicesEvent> events);
void OnDeviceInfoFetched();
std::vector<VideoCaptureDeviceInfo> MakeDevicesInfo();
void MaybeResolvePendingDeviceInfoCallbacks();
bool received_initial_list_ = false;
fuchsia::camera3::DeviceWatcherPtr device_watcher_;
// Current list of devices. Set to nullopt if the list hasn't been received
// yet.
absl::optional<
base::small_map<std::map<uint64_t, std::unique_ptr<DeviceConfigFetcher>>>>
devices_;
size_t num_pending_device_info_requests_ = 0;
std::vector<GetDevicesInfoCallback> pending_devices_info_requests_;
base::WeakPtrFactory<VideoCaptureDeviceFactoryFuchsia> weak_factory_{this};
};
} // namespace media
#endif // MEDIA_CAPTURE_VIDEO_FUCHSIA_VIDEO_CAPTURE_DEVICE_FACTORY_FUCHSIA_H_
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