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content / public / browser / video_capture_device_launcher.h [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_BROWSER_VIDEO_CAPTURE_DEVICE_LAUNCHER_H_
#define CONTENT_PUBLIC_BROWSER_VIDEO_CAPTURE_DEVICE_LAUNCHER_H_
#include <memory>
#include <string>
#include "base/functional/callback_forward.h"
#include "base/task/single_thread_task_runner.h"
#include "base/token.h"
#include "content/common/content_export.h"
#include "media/capture/mojom/video_capture_types.mojom.h"
#include "media/capture/video/video_capture_device.h"
#include "media/capture/video/video_capture_device_info.h"
#include "media/capture/video/video_frame_receiver.h"
#include "media/capture/video_capture_types.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/video_effects/public/mojom/video_effects_processor.mojom-forward.h"
#include "third_party/blink/public/common/mediastream/media_stream_request.h"
#include "ui/gfx/native_widget_types.h"
namespace content {
class LaunchedVideoCaptureDevice;
// Asynchronously launches video capture devices. After a call to
// LaunchDeviceAsync() it is illegal to call LaunchDeviceAsync() again until
// |callbacks| has been notified about the outcome of the asynchronous launch.
class CONTENT_EXPORT VideoCaptureDeviceLauncher {
public:
class CONTENT_EXPORT Callbacks {
public:
virtual ~Callbacks() {}
virtual void OnDeviceLaunched(
std::unique_ptr<LaunchedVideoCaptureDevice> device) = 0;
virtual void OnDeviceLaunchFailed(media::VideoCaptureError error) = 0;
virtual void OnDeviceLaunchAborted() = 0;
};
virtual ~VideoCaptureDeviceLauncher() {}
// Creates an InProcessVideoCaptureDeviceLauncher.
static std::unique_ptr<VideoCaptureDeviceLauncher>
CreateInProcessVideoCaptureDeviceLauncher(
scoped_refptr<base::SingleThreadTaskRunner> device_task_runner);
// The passed-in `done_cb` must guarantee that the context relevant
// during the asynchronous processing stays alive.
//
// The passed-in `video_effects_processor` remote is passed on to
// `VideoCaptureDeviceClient`, allowing it to request post-processing of
// video frames according to the effects configuration set on the
// VideoEffectsProcessor by the Browser process. The remote won't
// be bound to a receiver if the `VideoCaptureHost` couldn't get a valid
// `content::BrowserContext`.
virtual void LaunchDeviceAsync(
const std::string& device_id,
blink::mojom::MediaStreamType stream_type,
const media::VideoCaptureParams& params,
base::WeakPtr<media::VideoFrameReceiver> receiver,
base::OnceClosure connection_lost_cb,
Callbacks* callbacks,
base::OnceClosure done_cb,
mojo::PendingRemote<video_effects::mojom::VideoEffectsProcessor>
video_effects_processor) = 0;
virtual void AbortLaunch() = 0;
};
class CONTENT_EXPORT LaunchedVideoCaptureDevice
: public media::VideoFrameConsumerFeedbackObserver {
public:
// Device operation methods.
virtual void GetPhotoState(
media::VideoCaptureDevice::GetPhotoStateCallback callback) = 0;
virtual void SetPhotoOptions(
media::mojom::PhotoSettingsPtr settings,
media::VideoCaptureDevice::SetPhotoOptionsCallback callback) = 0;
virtual void TakePhoto(
media::VideoCaptureDevice::TakePhotoCallback callback) = 0;
virtual void MaybeSuspendDevice() = 0;
virtual void ResumeDevice() = 0;
virtual void ApplySubCaptureTarget(
media::mojom::SubCaptureTargetType type,
const base::Token& target,
uint32_t sub_capture_target_version,
base::OnceCallback<void(media::mojom::ApplySubCaptureTargetResult)>
callback) = 0;
virtual void RequestRefreshFrame() = 0;
// Methods for specific types of devices.
virtual void SetDesktopCaptureWindowIdAsync(gfx::NativeViewId window_id,
base::OnceClosure done_cb) = 0;
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_VIDEO_CAPTURE_DEVICE_LAUNCHER_H_