content/browser/renderer_host/media/video_capture_texture_wrapper.h - Issue 1064963002: VideoCapture: add support for GpuMemoryBuffer allocation and lifetime mgmt in VideoCaptureBufferPool

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Issue 1064963002: VideoCapture: add support for GpuMemoryBuffer allocation and lifetime mgmt in VideoCaptureBufferPool (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 5 years, 8 months ago

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« content/browser/renderer_host/media/video_capture_buffer_pool.cc ('K') | « content/browser/renderer_host/media/video_capture_device_client.cc ('k') | content/browser/renderer_host/media/video_capture_texture_wrapper.cc » ('j') | content/browser/renderer_host/media/video_capture_texture_wrapper.cc » ('J')
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1 // Copyright 2015 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_VIDEO_CAPTURE_TEXTURE_WRAPPER_H_

6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_TEXTURE_WRAPPER_H_

7

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

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

10 #include "base/memory/scoped_ptr.h"

11 #include "base/single_thread_task_runner.h"

12 #include "content/browser/renderer_host/media/video_capture_device_client.h"

13 #include "content/common/content_export.h"

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

15

16 namespace content {

17

18 // VideoCaptureDeviceClient derived class for copying incoming memory-backed

19 // video data into a GpuMemoryBuffer (in turn into a VideoFrame), and sending it

20 // to \|controller_\|. Construction happens on IO Thread, whereas calls to

21 // OnIncomingCapturedData() come from wherever capture happens which might be,

22 // and often is, an OS thread different from Device Thread.

23 //

24 // It has an internal ref counted TextureWrapperDelegate class used to do all

25 // the work. This class creates and manages the necessary interactions with the

26 // GPU process for the texture uploading. This delegate is needed since the

27 // frame producer needs to own us, but we need to launch PostTask()s.

28 //

29 // TODO(mcasas): ctor \|frame_format\| is used for early GpuMemoryBuffer pool

30 // allocation, but VideoCaptureDevices might provide a different resolution when

31 // calling OnIncomingCapturedData(). What should we do then...?

32

33 class CONTENT_EXPORT VideoCaptureTextureWrapper final

34 : public VideoCaptureDeviceClient {

35 public:

36 VideoCaptureTextureWrapper(

37 const base::WeakPtr<VideoCaptureController>& controller,

38 const scoped_refptr<VideoCaptureBufferPool>& buffer_pool,

39 const scoped_refptr<base::SingleThreadTaskRunner>& capture_task_runner,

40 const media::VideoCaptureFormat& capture_format);

41 ~VideoCaptureTextureWrapper() override;

42

43 // Single media::VideoCaptureDevice::Client overriden method.

44 void OnIncomingCapturedData(const uint8* data,

45 int length,

46 const media::VideoCaptureFormat& frame_format,

47 int clockwise_rotation,

48 const base::TimeTicks& timestamp) override;

49

50 private:

51 class TextureWrapperDelegate;

52 // Internal delegate doing most of the work.

53 scoped_refptr<TextureWrapperDelegate> wrapper_delegate_;

54 // Reference to Capture Thread task runner.

55 const scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_;

56

57 DISALLOW_COPY_AND_ASSIGN(VideoCaptureTextureWrapper);

58 };

59

60 } // namespace content

61

62 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_TEXTURE_WRAPPER_H_

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