content/browser/renderer_host/media/buildable_video_capture_device.h - Issue 2800493002: [Mojo Video Capture] Create abstraction VideoCaptureProvider

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Issue 2800493002: [Mojo Video Capture] Create abstraction VideoCaptureProvider (Closed)

Patch Set: Rebase Created 3 years, 8 months ago

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1 // Copyright 2017 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_BUILDABLE_VIDEO_CAPTURE_DEVICE_H_

6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_BUILDABLE_VIDEO_CAPTURE_DEVICE_H_

7

8 #include "base/memory/ptr_util.h"

9 #include "base/memory/ref_counted.h"

10 #include "content/public/common/media_stream_request.h"

11 #include "media/capture/video/video_capture_device.h"

12 #include "media/capture/video_capture_types.h"

13

14 namespace content {

15

16 class VideoCaptureController;

17

18 // Abstraction for a video capture device that must be "built" before it can be

19 // operated and must be "stopped", before it can be released. Typical operation

20 // is that a newly created instance initially reports IsDeviceAlive() == false.

21 // Clients call CreateAndStartDeviceAsync(), which kicks off the asynchronous

22 // building of the device. The outcome of the device building is reported to an

23 // instance of Callbacks. Once the device has been built successfully, the

24 // "Device operation methods", are allowed to be called. ReleaseDeviceAsync()

25 // must be called in order to release the device if it has before been built

26 // successfully. After calling ReleaseDeviceAsync(), it is legal to call

27 // CreateAndStartDeviceAsync() to rebuild and start the device again.

28 class CONTENT_EXPORT BuildableVideoCaptureDevice {

29 public:

30 class CONTENT_EXPORT Callbacks {

31 public:

32 virtual ~Callbacks() {}

33 virtual void OnDeviceStarted(VideoCaptureController* controller) = 0;

34 virtual void OnDeviceStartFailed(VideoCaptureController* controller) = 0;

35 virtual void OnDeviceStartAborted() = 0;

36 };

37

38 virtual ~BuildableVideoCaptureDevice() {}

39

40 // Device management methods.

41 virtual void CreateAndStartDeviceAsync(

42 VideoCaptureController* controller,

43 const media::VideoCaptureParams& params,

44 Callbacks* callbacks,

45 base::OnceClosure done_cb) = 0;

46 virtual void ReleaseDeviceAsync(VideoCaptureController* controller,

47 base::OnceClosure done_cb) = 0;

48 virtual bool IsDeviceAlive() const = 0;

49

50 // Device operation methods.

51 virtual void GetPhotoCapabilities(

52 media::VideoCaptureDevice::GetPhotoCapabilitiesCallback callback)

53 const = 0;

54 virtual void SetPhotoOptions(

55 media::mojom::PhotoSettingsPtr settings,

56 media::VideoCaptureDevice::SetPhotoOptionsCallback callback) = 0;

57 virtual void TakePhoto(

58 media::VideoCaptureDevice::TakePhotoCallback callback) = 0;

59 virtual void MaybeSuspendDevice() = 0;

60 virtual void ResumeDevice() = 0;

61 virtual void RequestRefreshFrame() = 0;

62

63 // Methods for specific types of devices.

64 virtual void SetDesktopCaptureWindowIdAsync(gfx::NativeViewId window_id,

65 base::OnceClosure done_cb) = 0;

66 };

67

68 } // namespace content

69

70 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_BUILDABLE_VIDEO_CAPTURE_DEVICE_H_

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